3559 files changed, 336048 insertions, 162766 deletions

diff --git a/.document b/.document
index 9a5067bc52..fb27ba325d 100644
--- a/.document
+++ b/.document
@@ -20,9 +20,7 @@ ChangeLog
 
 NEWS
 
-README
-README.EXT
-README.EXT.ja
-README.ja
+README.md
+README.ja.md
 
 doc
diff --git a/.gdbinit b/.gdbinit
index c8705a6ccf..03c2b653cb 100644
--- a/.gdbinit
+++ b/.gdbinit
@@ -1,80 +1,34 @@
-define rp
+define hook-run
+  set $color_type = 0
+  set $color_highlite = 0
+  set $color_end = 0
+end
+
+define ruby_gdb_init
+  if !$color_type
+    set $color_type = "\033[31m"
+  end
+  if !$color_highlite
+    set $color_highlite = "\033[36m"
+  end
+  if !$color_end
+    set $color_end = "\033[m"
+  end
   if ruby_dummy_gdb_enums.special_consts
   end
+end
+
+# set prompt \033[36m(gdb)\033[m\040
+
+define rp
+  ruby_gdb_init
   if (VALUE)($arg0) & RUBY_FIXNUM_FLAG
     printf "FIXNUM: %ld\n", (long)($arg0) >> 1
   else
   if ((VALUE)($arg0) & ~(~(VALUE)0<<RUBY_SPECIAL_SHIFT)) == RUBY_SYMBOL_FLAG
     set $id = (($arg0) >> RUBY_SPECIAL_SHIFT)
-    if $id == '!' || $id == '+' || $id == '-' || $id == '*' || $id == '/' || $id == '%' || $id == '<' || $id == '>' || $id == '`'
-      printf "SYMBOL(:%c)\n", $id
-    else
-    if $id == idDot2
-      echo SYMBOL(:..)\n
-    else
-    if $id == idDot3
-      echo SYMBOL(:...)\n
-    else
-    if $id == idUPlus
-      echo SYMBOL(:+@)\n
-    else
-    if $id == idUMinus
-      echo SYMBOL(:-@)\n
-    else
-    if $id == idPow
-      echo SYMBOL(:**)\n
-    else
-    if $id == idCmp
-      echo SYMBOL(:<=>)\n
-    else
-    if $id == idLTLT
-      echo SYMBOL(:<<)\n
-    else
-    if $id == idLE
-      echo SYMBOL(:<=)\n
-    else
-    if $id == idGE
-      echo SYMBOL(:>=)\n
-    else
-    if $id == idEq
-      echo SYMBOL(:==)\n
-    else
-    if $id == idEqq
-      echo SYMBOL(:===)\n
-    else
-    if $id == idNeq
-      echo SYMBOL(:!=)\n
-    else
-    if $id == idEqTilde
-      echo SYMBOL(:=~)\n
-    else
-    if $id == idNeqTilde
-      echo SYMBOL(:!~)\n
-    else
-    if $id == idAREF
-      echo SYMBOL(:[])\n
-    else
-    if $id == idASET
-      echo SYMBOL(:[]=)\n
-    else
-      printf "SYMBOL(%ld)\n", $id
-    end
-    end
-    end
-    end
-    end
-    end
-    end
-    end
-    end
-    end
-    end
-    end
-    end
-    end
-    end
-    end
-    end
+    printf "%sSYMBOL%s: ", $color_type, $color_end
+    rp_id $id
   else
   if ($arg0) == RUBY_Qfalse
     echo false\n
@@ -90,80 +44,51 @@ define rp
   else
   if (VALUE)($arg0) & RUBY_IMMEDIATE_MASK
     if ((VALUE)($arg0) & RUBY_FLONUM_MASK) == RUBY_FLONUM_FLAG
-      printf "FLONUM: %g\n", (double)rb_float_value($arg0)
+      printf "%sFLONUM%s: %g\n", $color_type, $color_end, (double)rb_float_value($arg0)
     else
       echo immediate\n
     end
   else
   set $flags = ((struct RBasic*)($arg0))->flags
+  if ($flags & RUBY_FL_PROMOTED) == RUBY_FL_PROMOTED
+    printf "[PROMOTED] "
+  end
   if ($flags & RUBY_T_MASK) == RUBY_T_NONE
-    printf "T_NONE: "
+    printf "%sT_NONE%s: ", $color_type, $color_end
     print (struct RBasic *)($arg0)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_NIL
-    printf "T_NIL: "
+    printf "%sT_NIL%s: ", $color_type, $color_end
     print (struct RBasic *)($arg0)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_OBJECT
-    printf "T_OBJECT: "
+    printf "%sT_OBJECT%s: ", $color_type, $color_end
     print (struct RObject *)($arg0)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_CLASS
-    printf "T_CLASS%s: ", ($flags & RUBY_FL_SINGLETON) ? "*" : ""
+    printf "%sT_CLASS%s%s: ", $color_type, ($flags & RUBY_FL_SINGLETON) ? "*" : "", $color_end
     rp_class $arg0
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_ICLASS
-    printf "T_ICLASS: "
+    printf "%sT_ICLASS%s: ", $color_type, $color_end
     rp_class $arg0
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_MODULE
-    printf "T_MODULE: "
+    printf "%sT_MODULE%s: ", $color_type, $color_end
     rp_class $arg0
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_FLOAT
-    printf "T_FLOAT: %.16g ", (((struct RFloat*)($arg0))->float_value)
+    printf "%sT_FLOAT%s: %.16g ", $color_type, $color_end, (((struct RFloat*)($arg0))->float_value)
     print (struct RFloat *)($arg0)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_STRING
-    printf "T_STRING: "
-    set print address off
-    output (char *)(($flags & RUBY_FL_USER1) ? \
-	    ((struct RString*)($arg0))->as.heap.ptr : \
-	    ((struct RString*)($arg0))->as.ary)
-    set print address on
-    printf " bytesize:%ld ", ($flags & RUBY_FL_USER1) ? \
-            ((struct RString*)($arg0))->as.heap.len : \
-            (($flags & (RUBY_FL_USER2|RUBY_FL_USER3|RUBY_FL_USER4|RUBY_FL_USER5|RUBY_FL_USER6)) >> RUBY_FL_USHIFT+2)
-    if !($flags & RUBY_FL_USER1)
-      printf "(embed) "
-    else
-      if ($flags & RUBY_FL_USER2)
-        printf "(shared) "
-      end
-      if ($flags & RUBY_FL_USER3)
-        printf "(assoc) "
-      end
-    end
-    printf "encoding:%d ", ($flags & RUBY_ENCODING_MASK) >> RUBY_ENCODING_SHIFT
-    if ($flags & RUBY_ENC_CODERANGE_MASK) == 0
-      printf "coderange:unknown "
-    else
-    if ($flags & RUBY_ENC_CODERANGE_MASK) == RUBY_ENC_CODERANGE_7BIT
-      printf "coderange:7bit "
-    else
-    if ($flags & RUBY_ENC_CODERANGE_MASK) == RUBY_ENC_CODERANGE_VALID
-      printf "coderange:valid "
-    else
-      printf "coderange:broken "
-    end
-    end
-    end
-    print (struct RString *)($arg0)
+    printf "%sT_STRING%s: ", $color_type, $color_end
+    rp_string $arg0 $flags
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_REGEXP
     set $regsrc = ((struct RRegexp*)($arg0))->src
     set $rsflags = ((struct RBasic*)$regsrc)->flags
-    printf "T_REGEXP: "
+    printf "%sT_REGEXP%s: ", $color_type, $color_end
     set print address off
     output (char *)(($rsflags & RUBY_FL_USER1) ? \
 	    ((struct RString*)$regsrc)->as.heap.ptr : \
@@ -187,7 +112,7 @@ define rp
   if ($flags & RUBY_T_MASK) == RUBY_T_ARRAY
     if ($flags & RUBY_FL_USER1)
       set $len = (($flags & (RUBY_FL_USER3|RUBY_FL_USER4)) >> (RUBY_FL_USHIFT+3))
-      printf "T_ARRAY: len=%ld ", $len
+      printf "%sT_ARRAY%s: len=%ld ", $color_type, $color_end, $len
       printf "(embed) "
       if ($len == 0)
 	printf "{(empty)} "
@@ -197,7 +122,7 @@ define rp
       end
     else
       set $len = ((struct RArray*)($arg0))->as.heap.len
-      printf "T_ARRAY: len=%ld ", $len
+      printf "%sT_ARRAY%s: len=%ld ", $color_type, $color_end, $len
       if ($flags & RUBY_FL_USER2)
 	printf "(shared) shared="
 	output/x ((struct RArray*)($arg0))->as.heap.aux.shared
@@ -215,18 +140,18 @@ define rp
     print (struct RArray *)($arg0)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_FIXNUM
-    printf "T_FIXNUM: "
+    printf "%sT_FIXNUM%s: ", $color_type, $color_end
     print (struct RBasic *)($arg0)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_HASH
-    printf "T_HASH: ",
+    printf "%sT_HASH%s: ", $color_type, $color_end,
     if ((struct RHash *)($arg0))->ntbl
       printf "len=%ld ", ((struct RHash *)($arg0))->ntbl->num_entries
     end
     print (struct RHash *)($arg0)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_STRUCT
-    printf "T_STRUCT: len=%ld ", \
+    printf "%sT_STRUCT%s: len=%ld ", $color_type, $color_end, \
       (($flags & (RUBY_FL_USER1|RUBY_FL_USER2)) ? \
        ($flags & (RUBY_FL_USER1|RUBY_FL_USER2)) >> (RUBY_FL_USHIFT+1) : \
        ((struct RStruct *)($arg0))->as.heap.len)
@@ -236,7 +161,7 @@ define rp
           ((struct RStruct *)($arg0))->as.heap.ptr)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_BIGNUM
-    printf "T_BIGNUM: sign=%d len=%ld ", \
+    printf "%sT_BIGNUM%s: sign=%d len=%ld ", $color_type, $color_end, \
       (($flags & RUBY_FL_USER1) != 0), \
       (($flags & RUBY_FL_USER2) ? \
        ($flags & (RUBY_FL_USER5|RUBY_FL_USER4|RUBY_FL_USER3)) >> (RUBY_FL_USHIFT+3) : \
@@ -250,59 +175,93 @@ define rp
           ((struct RBignum*)($arg0))->as.heap.digits)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_RATIONAL
-    printf "T_RATIONAL: "
+    printf "%sT_RATIONAL%s: ", $color_type, $color_end
     print (struct RRational *)($arg0)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_COMPLEX
-    printf "T_COMPLEX: "
+    printf "%sT_COMPLEX%s: ", $color_type, $color_end
     print (struct RComplex *)($arg0)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_FILE
-    printf "T_FILE: "
+    printf "%sT_FILE%s: ", $color_type, $color_end
     print (struct RFile *)($arg0)
     output *((struct RFile *)($arg0))->fptr
     printf "\n"
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_TRUE
-    printf "T_TRUE: "
+    printf "%sT_TRUE%s: ", $color_type, $color_end
     print (struct RBasic *)($arg0)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_FALSE
-    printf "T_FALSE: "
+    printf "%sT_FALSE%s: ", $color_type, $color_end
     print (struct RBasic *)($arg0)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_DATA
     if ((struct RTypedData *)($arg0))->typed_flag == 1
-      printf "T_DATA(%s): ", ((struct RTypedData *)($arg0))->type->wrap_struct_name
+      printf "%sT_DATA%s(%s): ", $color_type, $color_end, ((struct RTypedData *)($arg0))->type->wrap_struct_name
       print (struct RTypedData *)($arg0)
     else
-      printf "T_DATA: "
+      printf "%sT_DATA%s: ", $color_type, $color_end
       print (struct RData *)($arg0)
     end
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_MATCH
-    printf "T_MATCH: "
+    printf "%sT_MATCH%s: ", $color_type, $color_end
     print (struct RMatch *)($arg0)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_SYMBOL
-    printf "T_SYMBOL: "
-    print (struct RBasic *)($arg0)
+    printf "%sT_SYMBOL%s: ", $color_type, $color_end
+    print (struct RSymbol *)($arg0)
+    set $id_type = ((struct RSymbol *)($arg0))->id & RUBY_ID_SCOPE_MASK
+    if $id_type == RUBY_ID_LOCAL
+      printf "l"
+    else
+    if $id_type == RUBY_ID_INSTANCE
+      printf "i"
+    else
+    if $id_type == RUBY_ID_GLOBAL
+      printf "G"
+    else
+    if $id_type == RUBY_ID_ATTRSET
+      printf "a"
+    else
+    if $id_type == RUBY_ID_CONST
+      printf "C"
+    else
+    if $id_type == RUBY_ID_CLASS
+      printf "c"
+    else
+      printf "j"
+    end
+    end
+    end
+    end
+    end
+    end
+    set $id_fstr = ((struct RSymbol *)($arg0))->fstr
+    rp_string $id_fstr
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_UNDEF
-    printf "T_UNDEF: "
+    printf "%sT_UNDEF%s: ", $color_type, $color_end
     print (struct RBasic *)($arg0)
   else
+  if ($flags & RUBY_T_MASK) == RUBY_T_IMEMO
+    printf "%sT_IMEMO%s(", $color_type, $color_end
+    output (enum imemo_type)(($flags>>RUBY_FL_USHIFT)&imemo_mask)
+    printf "): "
+    rp_imemo $arg0
+  else
   if ($flags & RUBY_T_MASK) == RUBY_T_NODE
-    printf "T_NODE("
+    printf "%sT_NODE%s(", $color_type, $color_end
     output (enum node_type)(($flags&RUBY_NODE_TYPEMASK)>>RUBY_NODE_TYPESHIFT)
     printf "): "
     print *(NODE *)($arg0)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_ZOMBIE
-    printf "T_ZOMBIE: "
+    printf "%sT_ZOMBIE%s: ", $color_type, $color_end
     print (struct RData *)($arg0)
   else
-    printf "unknown: "
+    printf "%sunknown%s: ", $color_type, $color_end
     print (struct RBasic *)($arg0)
   end
   end
@@ -336,17 +295,171 @@ define rp
   end
   end
   end
+  end
 end
 document rp
   Print a Ruby's VALUE.
 end
 
+define rp_id
+  set $id = (ID)$arg0
+  if $id == '!' || $id == '+' || $id == '-' || $id == '*' || $id == '/' || $id == '%' || $id == '<' || $id == '>' || $id == '`'
+    printf "(:%c)\n", $id
+  else
+  if $id == idDot2
+    printf "(:..)\n"
+  else
+  if $id == idDot3
+    printf "(:...)\n"
+  else
+  if $id == idUPlus
+    printf "(:+@)\n"
+  else
+  if $id == idUMinus
+    printf "(:-@)\n"
+  else
+  if $id == idPow
+    printf "(:**)\n"
+  else
+  if $id == idCmp
+    printf "(:<=>)\n"
+  else
+  if $id == idLTLT
+    printf "(:<<)\n"
+  else
+  if $id == idLE
+    printf "(:<=)\n"
+  else
+  if $id == idGE
+    printf "(:>=)\n"
+  else
+  if $id == idEq
+    printf "(:==)\n"
+  else
+  if $id == idEqq
+    printf "(:===)\n"
+  else
+  if $id == idNeq
+    printf "(:!=)\n"
+  else
+  if $id == idEqTilde
+    printf "(:=~)\n"
+  else
+  if $id == idNeqTilde
+    printf "(:!~)\n"
+  else
+  if $id == idAREF
+    printf "(:[])\n"
+  else
+  if $id == idASET
+    printf "(:[]=)\n"
+  else
+    if $id <= tLAST_OP_ID
+      printf "O"
+    else
+      set $id_type = $id & RUBY_ID_SCOPE_MASK
+      if $id_type == RUBY_ID_LOCAL
+        printf "l"
+      else
+      if $id_type == RUBY_ID_INSTANCE
+        printf "i"
+      else
+      if $id_type == RUBY_ID_GLOBAL
+        printf "G"
+      else
+      if $id_type == RUBY_ID_ATTRSET
+        printf "a"
+      else
+      if $id_type == RUBY_ID_CONST
+        printf "C"
+      else
+      if $id_type == RUBY_ID_CLASS
+        printf "c"
+      else
+        printf "j"
+      end
+      end
+      end
+      end
+      end
+      end
+    end
+    printf "(%ld): ", $id
+    set $str = lookup_id_str($id)
+    if $str
+      rp_string $str
+    else
+      echo undef\n
+    end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+end
+document rp_id
+  Print an ID.
+end
+
+define rp_string
+  set $flags = ((struct RBasic*)($arg0))->flags
+  set print address off
+  output (char *)(($flags & RUBY_FL_USER1) ? \
+	    ((struct RString*)($arg0))->as.heap.ptr : \
+	    ((struct RString*)($arg0))->as.ary)
+  set print address on
+  printf " bytesize:%ld ", ($flags & RUBY_FL_USER1) ? \
+          ((struct RString*)($arg0))->as.heap.len : \
+          (($flags & (RUBY_FL_USER2|RUBY_FL_USER3|RUBY_FL_USER4|RUBY_FL_USER5|RUBY_FL_USER6)) >> RUBY_FL_USHIFT+2)
+  if !($flags & RUBY_FL_USER1)
+    printf "(embed) "
+  else
+    if ($flags & RUBY_FL_USER2)
+      printf "(shared) "
+    end
+    if ($flags & RUBY_FL_USER3)
+      printf "(assoc) "
+    end
+  end
+  printf "encoding:%d ", ($flags & RUBY_ENCODING_MASK) >> RUBY_ENCODING_SHIFT
+  if ($flags & RUBY_ENC_CODERANGE_MASK) == 0
+    printf "coderange:unknown "
+  else
+  if ($flags & RUBY_ENC_CODERANGE_MASK) == RUBY_ENC_CODERANGE_7BIT
+    printf "coderange:7bit "
+  else
+  if ($flags & RUBY_ENC_CODERANGE_MASK) == RUBY_ENC_CODERANGE_VALID
+    printf "coderange:valid "
+  else
+    printf "coderange:broken "
+  end
+  end
+  end
+  print (struct RString *)($arg0)
+end
+document rp_string
+  Print the content of a String.
+end
+
 define rp_class
   printf "(struct RClass *) %p", (void*)$arg0
-  if ((struct RClass *)($arg0))->ptr.origin != $arg0
-    printf " -> %p", ((struct RClass *)($arg0))->ptr.origin
+  if ((struct RClass *)($arg0))->ptr.origin_ != $arg0
+    printf " -> %p", ((struct RClass *)($arg0))->ptr.origin_
   end
   printf "\n"
+  rb_classname $arg0
   print *(struct RClass *)($arg0)
   print *((struct RClass *)($arg0))->ptr
 end
@@ -354,6 +467,40 @@ document rp_class
   Print the content of a Class/Module.
 end
 
+define rp_imemo
+  set $flags = (((struct RBasic *)($arg0))->flags >> RUBY_FL_USHIFT) & imemo_mask
+  if $flags == imemo_cref
+    printf "(rb_cref_t *) %p\n", (void*)$arg0
+    print *(rb_cref_t *)$arg0
+  else
+  if $flags == imemo_svar
+    printf "(struct vm_svar *) %p\n", (void*)$arg0
+    print *(struct vm_svar *)$arg0
+  else
+  if $flags == imemo_throw_data
+    printf "(struct vm_throw_data *) %p\n", (void*)$arg0
+    print *(struct vm_throw_data *)$arg0
+  else
+  if $flags == imemo_ifunc
+    printf "(struct vm_ifunc *) %p\n", (void*)$arg0
+    print *(struct vm_ifunc *)$arg0
+  else
+  if $flags == imemo_memo
+    printf "(struct MEMO *) %p\n", (void*)$arg0
+    print *(struct MEMO *)$arg0
+  else
+    printf "(struct RIMemo *) %p\n", (void*)$arg0
+    print *(struct RIMemo *)$arg0
+  end
+  end
+  end
+  end
+  end
+end
+document rp_imemo
+  Print the content of a memo
+end
+
 define nd_type
   print (enum node_type)((((NODE*)($arg0))->flags&RUBY_NODE_TYPEMASK)>>RUBY_NODE_TYPESHIFT)
 end
@@ -378,260 +525,266 @@ end
 # Print members of ruby node.
 
 define nd_head
-  printf "u1.node: "
+  printf "%su1.node%s: ", $color_highlite, $color_end
   rp ($arg0).u1.node
 end
 
 define nd_alen
-  printf "u2.argc: "
+  printf "%su2.argc%s: ", $color_highlite, $color_end
   p ($arg0).u2.argc
 end
 
 define nd_next
-  printf "u3.node: "
+  printf "%su3.node%s: ", $color_highlite, $color_end
   rp ($arg0).u3.node
 end
 
 
 define nd_cond
-  printf "u1.node: "
+  printf "%su1.node%s: ", $color_highlite, $color_end
   rp ($arg0).u1.node
 end
 
 define nd_body
-  printf "u2.node: "
+  printf "%su2.node%s: ", $color_highlite, $color_end
   rp ($arg0).u2.node
 end
 
 define nd_else
-  printf "u3.node: "
+  printf "%su3.node%s: ", $color_highlite, $color_end
   rp ($arg0).u3.node
 end
 
 
 define nd_orig
-  printf "u3.value: "
+  printf "%su3.value%s: ", $color_highlite, $color_end
   rp ($arg0).u3.value
 end
 
 
 define nd_resq
-  printf "u2.node: "
+  printf "%su2.node%s: ", $color_highlite, $color_end
   rp ($arg0).u2.node
 end
 
 define nd_ensr
-  printf "u3.node: "
+  printf "%su3.node%s: ", $color_highlite, $color_end
   rp ($arg0).u3.node
 end
 
 
 define nd_1st
-  printf "u1.node: "
+  printf "%su1.node%s: ", $color_highlite, $color_end
   rp ($arg0).u1.node
 end
 
 define nd_2nd
-  printf "u2.node: "
+  printf "%su2.node%s: ", $color_highlite, $color_end
   rp ($arg0).u2.node
 end
 
 
 define nd_stts
-  printf "u1.node: "
+  printf "%su1.node%s: ", $color_highlite, $color_end
   rp ($arg0).u1.node
 end
 
 
 define nd_entry
-  printf "u3.entry: "
+  printf "%su3.entry%s: ", $color_highlite, $color_end
   p ($arg0).u3.entry
 end
 
 define nd_vid
-  printf "u1.id: "
+  printf "%su1.id%s: ", $color_highlite, $color_end
   p ($arg0).u1.id
 end
 
 define nd_cflag
-  printf "u2.id: "
+  printf "%su2.id%s: ", $color_highlite, $color_end
   p ($arg0).u2.id
 end
 
 define nd_cval
-  printf "u3.value: "
+  printf "%su3.value%s: ", $color_highlite, $color_end
   rp ($arg0).u3.value
 end
 
 
 define nd_cnt
-  printf "u3.cnt: "
+  printf "%su3.cnt%s: ", $color_highlite, $color_end
   p ($arg0).u3.cnt
 end
 
 define nd_tbl
-  printf "u1.tbl: "
+  printf "%su1.tbl%s: ", $color_highlite, $color_end
   p ($arg0).u1.tbl
 end
 
 
 define nd_var
-  printf "u1.node: "
+  printf "%su1.node%s: ", $color_highlite, $color_end
   rp ($arg0).u1.node
 end
 
 define nd_ibdy
-  printf "u2.node: "
+  printf "%su2.node%s: ", $color_highlite, $color_end
   rp ($arg0).u2.node
 end
 
 define nd_iter
-  printf "u3.node: "
+  printf "%su3.node%s: ", $color_highlite, $color_end
   rp ($arg0).u3.node
 end
 
 
 define nd_value
-  printf "u2.node: "
+  printf "%su2.node%s: ", $color_highlite, $color_end
   rp ($arg0).u2.node
 end
 
 define nd_aid
-  printf "u3.id: "
+  printf "%su3.id%s: ", $color_highlite, $color_end
   p ($arg0).u3.id
 end
 
 
 define nd_lit
-  printf "u1.value: "
+  printf "%su1.value%s: ", $color_highlite, $color_end
   rp ($arg0).u1.value
 end
 
 
 define nd_frml
-  printf "u1.node: "
+  printf "%su1.node%s: ", $color_highlite, $color_end
   rp ($arg0).u1.node
 end
 
 define nd_rest
-  printf "u2.argc: "
+  printf "%su2.argc%s: ", $color_highlite, $color_end
   p ($arg0).u2.argc
 end
 
 define nd_opt
-  printf "u1.node: "
+  printf "%su1.node%s: ", $color_highlite, $color_end
   rp ($arg0).u1.node
 end
 
 
 define nd_recv
-  printf "u1.node: "
+  printf "%su1.node%s: ", $color_highlite, $color_end
   rp ($arg0).u1.node
 end
 
 define nd_mid
-  printf "u2.id: "
+  printf "%su2.id%s: ", $color_highlite, $color_end
   p ($arg0).u2.id
 end
 
 define nd_args
-  printf "u3.node: "
+  printf "%su3.node%s: ", $color_highlite, $color_end
   rp ($arg0).u3.node
 end
 
 
 define nd_noex
-  printf "u1.id: "
+  printf "%su1.id%s: ", $color_highlite, $color_end
   p ($arg0).u1.id
 end
 
 define nd_defn
-  printf "u3.node: "
+  printf "%su3.node%s: ", $color_highlite, $color_end
   rp ($arg0).u3.node
 end
 
 
 define nd_old
-  printf "u1.id: "
+  printf "%su1.id%s: ", $color_highlite, $color_end
   p ($arg0).u1.id
 end
 
 define nd_new
-  printf "u2.id: "
+  printf "%su2.id%s: ", $color_highlite, $color_end
   p ($arg0).u2.id
 end
 
 
 define nd_cfnc
-  printf "u1.cfunc: "
+  printf "%su1.cfunc%s: ", $color_highlite, $color_end
   p ($arg0).u1.cfunc
 end
 
 define nd_argc
-  printf "u2.argc: "
+  printf "%su2.argc%s: ", $color_highlite, $color_end
   p ($arg0).u2.argc
 end
 
 
 define nd_cname
-  printf "u1.id: "
+  printf "%su1.id%s: ", $color_highlite, $color_end
   p ($arg0).u1.id
 end
 
 define nd_super
-  printf "u3.node: "
+  printf "%su3.node%s: ", $color_highlite, $color_end
   rp ($arg0).u3.node
 end
 
 
 define nd_modl
-  printf "u1.id: "
+  printf "%su1.id%s: ", $color_highlite, $color_end
   p ($arg0).u1.id
 end
 
 define nd_clss
-  printf "u1.value: "
+  printf "%su1.value%s: ", $color_highlite, $color_end
   rp ($arg0).u1.value
 end
 
 
 define nd_beg
-  printf "u1.node: "
+  printf "%su1.node%s: ", $color_highlite, $color_end
   rp ($arg0).u1.node
 end
 
 define nd_end
-  printf "u2.node: "
+  printf "%su2.node%s: ", $color_highlite, $color_end
   rp ($arg0).u2.node
 end
 
 define nd_state
-  printf "u3.state: "
+  printf "%su3.state%s: ", $color_highlite, $color_end
   p ($arg0).u3.state
 end
 
 define nd_rval
-  printf "u2.value: "
+  printf "%su2.value%s: ", $color_highlite, $color_end
   rp ($arg0).u2.value
 end
 
 
 define nd_nth
-  printf "u2.argc: "
+  printf "%su2.argc%s: ", $color_highlite, $color_end
   p ($arg0).u2.argc
 end
 
 
 define nd_tag
-  printf "u1.id: "
+  printf "%su1.id%s: ", $color_highlite, $color_end
   p ($arg0).u1.id
 end
 
 define nd_tval
-  printf "u2.value: "
+  printf "%su2.value%s: ", $color_highlite, $color_end
   rp ($arg0).u2.value
 end
 
+define nd_tree
+  set $buf = (struct RString *)rb_str_buf_new(0)
+  call dump_node((VALUE)($buf), rb_str_new(0, 0), 0, ($arg0))
+  printf "%s\n", $buf->as.heap.ptr
+end
+
 define rb_p
   call rb_p($arg0)
 end
@@ -653,7 +806,7 @@ define rb_numtable_entry
       end
     end
   else
-    set $rb_numtable_p = $rb_numtable_tbl->as.big.bins[$rb_numtable_id % $rb_numtable_tbl->num_bins]
+    set $rb_numtable_p = $rb_numtable_tbl->as.big.bins[st_numhash($rb_numtable_id) % $rb_numtable_tbl->num_bins]
     while $rb_numtable_p
       if $rb_numtable_p->key == $rb_numtable_id
 	set $rb_numtable_key = $rb_numtable_p->key
@@ -667,12 +820,9 @@ define rb_numtable_entry
 end
 
 define rb_id2name
-  rb_numtable_entry global_symbols.id_str (ID)$arg0
-  if $rb_numtable_rec
-    rp $rb_numtable_rec
-  else
-    echo undef\n
-  end
+  ruby_gdb_init
+  printf "%sID%s: ", $color_type, $color_end
+  rp_id $arg0
 end
 document rb_id2name
   Print the name of id
@@ -683,10 +833,10 @@ define rb_method_entry
   set $rb_method_entry_id = (ID)$arg1
   set $rb_method_entry_me = (rb_method_entry_t *)0
   while !$rb_method_entry_me && $rb_method_entry_klass
-    rb_numtable_entry $rb_method_entry_klass->m_tbl $rb_method_entry_id
+    rb_numtable_entry $rb_method_entry_klass->m_tbl_wrapper->tbl $rb_method_entry_id
     set $rb_method_entry_me = (rb_method_entry_t *)$rb_numtable_rec
     if !$rb_method_entry_me
-      set $rb_method_entry_klass = (struct RClass *)$rb_method_entry_klass->ptr->super
+      set $rb_method_entry_klass = (struct RClass *)RCLASS_SUPER($rb_method_entry_klass)
     end
   end
   if $rb_method_entry_me
@@ -701,16 +851,21 @@ document rb_method_entry
 end
 
 define rb_classname
-  call classname($arg0)
-  rb_p $
-  print *(struct RClass*)($arg0)
+  # up to 128bit int
+  set $rb_classname_permanent = "0123456789ABCDEF"
+  set $rb_classname = classname($arg0, $rb_classname_permanent)
+  if $rb_classname != RUBY_Qnil
+    rp $rb_classname
+  else
+    echo anonymous class/module\n
+  end
 end
 
 define rb_ancestors
   set $rb_ancestors_module = $arg0
   while $rb_ancestors_module
-    rp $rb_ancestors_module
-    set $rb_ancestors_module = ((struct RClass *)($rb_ancestors_module))->ptr.super
+    rp_class $rb_ancestors_module
+    set $rb_ancestors_module = RCLASS_SUPER($rb_ancestors_module)
   end
 end
 document rb_ancestors
@@ -755,23 +910,16 @@ end
 
 define rb_ps_vm
   print $ps_vm = (rb_vm_t*)$arg0
-  set $ps_threads = (st_table*)$ps_vm->living_threads
-  if $ps_threads->entries_packed
-    set $ps_threads_i = 0
-    while $ps_threads_i < $ps_threads->num_entries
-      set $ps_threads_key = (st_data_t)$ps_threads->as.packed.entries[$ps_threads_i].key
-      set $ps_threads_val = (st_data_t)$ps_threads->as.packed.entries[$ps_threads_i].val
-      rb_ps_thread $ps_threads_key $ps_threads_val
-      set $ps_threads_i = $ps_threads_i + 1
-    end
-  else
-    set $ps_threads_ptr = (st_table_entry*)$ps_threads->head
-    while $ps_threads_ptr
-      set $ps_threads_key = (st_data_t)$ps_threads_ptr->key
-      set $ps_threads_val = (st_data_t)$ps_threads_ptr->record
-      rb_ps_thread $ps_threads_key $ps_threads_val
-      set $ps_threads_ptr = (st_table_entry*)$ps_threads_ptr->fore
+  set $ps_thread_ln = $ps_vm->living_threads.n.next
+  set $ps_thread_ln_last = $ps_vm->living_threads.n.prev
+  while 1
+    set $ps_thread_th = (rb_thread_t *)$ps_thread_ln
+    set $ps_thread = (VALUE)($ps_thread_th->self)
+    rb_ps_thread $ps_thread
+    if $ps_thread_ln == $ps_thread_ln_last
+      loop_break
     end
+    set $ps_thread_ln = $ps_thread_ln->next
   end
 end
 document rb_ps_vm
@@ -780,8 +928,9 @@ end
 
 define rb_ps_thread
   set $ps_thread = (struct RTypedData*)$arg0
-  set $ps_thread_id = $arg1
-  print $ps_thread_th = (rb_thread_t*)$ps_thread->data
+  set $ps_thread_th = (rb_thread_t*)$ps_thread->data
+  printf "* #<Thread:%p rb_thread_t:%p native_thread:%p>\n", \
+    $ps_thread, $ps_thread_th, $ps_thread_th->thread_id
 end
 
 # Details: https://bugs.ruby-lang.org/projects/ruby-trunk/wiki/MachineInstructionsTraceWithGDB
@@ -800,3 +949,18 @@ define SDR
   call rb_vmdebug_stack_dump_raw_current()
 end
 
+define rbi
+  if ((LINK_ELEMENT*)$arg0)->type == ISEQ_ELEMENT_LABEL
+    p *(LABEL*)$arg0
+  else
+  if ((LINK_ELEMENT*)$arg0)->type == ISEQ_ELEMENT_INSN
+    p *(INSN*)$arg0
+  else
+  if ((LINK_ELEMENT*)$arg0)->type == ISEQ_ELEMENT_ADJUST
+    p *(ADJUST*)$arg0
+  else
+    print *$arg0
+  end
+  end
+  end
+end
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000000..d9785fad00
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,5 @@
+*.gemspec diff=ruby
+*.rb diff=ruby
+bin/* diff=ruby
+tool/update-deps diff=ruby
+tool/make-snapshot diff=ruby
diff --git a/.gitignore b/.gitignore
index 5808bf1082..80c12594dd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,6 @@
 *-*-*.def
+*-*-*.exp
+*-*-*.lib
 *.a
 *.bak
 *.dSYM
@@ -8,10 +10,13 @@
 *.inc
 *.log
 *.o
+*.obj
 *.orig
+*.pdb
 *.rej
 *.sav
 *.swp
+*.yarb
 *~
 .*-*
 .*.list
@@ -23,19 +28,27 @@
 .ppack
 .svn
 Makefile
+Makefile.old
+cygruby*.def
 extconf.h
 y.output
 y.tab.c
 
 # /
+/*-fake.rb
+/*.dll
+/*.exe
+/*.res
 /*.pc
+/*.rc
 /*_prelude.c
 /COPYING.LIB
-/ChangeLog-1.8.0
+/ChangeLog-*
 /ChangeLog.pre-alpha
 /ChangeLog.pre1_1
 /Doxyfile
 /GNUmakefile
+/GNUmakefile.old
 /README.atheos
 /README.fat-patch
 /README.v6
@@ -44,6 +57,7 @@ y.tab.c
 /autom4te*.cache
 /automake
 /beos
+/bmlog-*
 /breakpoints.gdb
 /config.cache
 /config.h
@@ -51,6 +65,13 @@ y.tab.c
 /config.status
 /config.status.lineno
 /configure
+/coverage/simplecov
+/coverage/simplecov-html
+/coverage/doclie
+/coverage/.last_run.json
+/coverage/.resultset.json*
+/coverage/assets
+/coverage/index.html
 /doc/capi
 /enc.mk
 /encdb.h
@@ -81,28 +102,56 @@ y.tab.c
 /riscos
 /rubicon
 /ruby
+/ruby-runner
+/ruby-runner.c
 /ruby-man.rd.gz
+/sizes.c
 /test.rb
 /tmp
 /transdb.h
 /uncommon.mk
 /verconf.h
+/verconf.mk
 /web
 /yasmdata.rb
 
 # /benchmark/
 /benchmark/bmx_*.rb
+/benchmark/fasta.output.*
+/benchmark/wc.input
+
+/enc/*.def
+/enc/*.exp
+/enc/*.lib
+/enc/unicode/data
 
 # /enc/trans/
 /enc/trans/*.c
+/enc/trans/*.def
+/enc/trans/*.exp
+/enc/trans/*.lib
+/enc/trans/.time
 
 # /ext/
 /ext/extinit.c
 
+# /ext/-test-/win32/dln/
+/ext/-test-/win32/dln/dlntest.exp
+/ext/-test-/win32/dln/dlntest.lib
+
 # /ext/dl/callback/
 /ext/dl/callback/callback-*.c
 /ext/dl/callback/callback.c
 
+# /ext/etc/
+/ext/etc/constdefs.h
+
+# /ext/fiddle/
+/ext/fiddle/libffi-*
+
+# /ext/rbconfig/
+/ext/rbconfig/sizeof/sizes.c
+
 # /ext/ripper/
 /ext/ripper/eventids1.c
 /ext/ripper/eventids2table.c
@@ -118,10 +167,17 @@ y.tab.c
 # /ext/tk/
 /ext/tk/config_list
 
+# /gems
+/gems/*.gem
+
 # /spec/
 /spec/mspec
 /spec/rubyspec
 
+# /tool/
+/tool/config.guess
+/tool/config.sub
+
 # /win32/
 /win32/*.ico
 /win32/.time
diff --git a/.travis.yml b/.travis.yml
index db25c9eb08..f87ffd3483 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,37 +18,56 @@
 
 # Language specification.
 language: c
+sudo: false
 
 # Compilers.  Several  compilers are  provided in Travis,  so we try  them all.
 # The value set here is visible via $CC environment variable.
 compiler:
   - gcc
-  - clang
+
+os:
+  - linux
 
 # Dependencies.  Some  header files are missing  in a Travis' worker  VM, so we
 # have  to install  them.  The  "1.9.1" here  is OK.   It is  the  most adopted
 # version string  for Debian/Ubuntu, and  no dependencies have been  changed so
 # far since the 1.9.1 release.
 before_install:
-  - "sudo apt-get -qq update"
-  - "sudo apt-get -qq install $CC" # upgrade if any
-install: "sudo apt-get -qq build-dep ruby1.9.1 2>/dev/null"
+  - "CONFIG_FLAG="
+  - "JOBS='-j 4'"
 
 # Script is where the test runs.  Note  we just do "make test", not other tests
 # like  test-all, test-rubyspec.   This is  because  they take  too much  time,
 # enough for Travis to shut down the VM as being stalled.
 before_script:
+  - "uname -a"
+  - "uname -r"
+  - "rm -fr .ext autom4te.cache"
+  - "echo $TERM"
+  - "make -f common.mk BASERUBY=ruby MAKEDIRS='mkdir -p' srcdir=. update-config_files"
   - "autoconf"
-  - "./configure --with-gcc=$CC"
-  - "make -sj encs"
-  - "make -sj exts"
-script: "make test OPTS=-v"
+  - "mkdir config_1st config_2nd"
+  - "./configure -C --disable-install-doc --with-gcc=$CC $CONFIG_FLAG"
+  - "cp -pr config.status .ext/include config_1st"
+  - "make reconfig"
+  - "cp -pr config.status .ext/include config_2nd"
+  - "diff -ru config_1st config_2nd"
+  - "make after-update BASERUBY=ruby"
+  - "make -s $JOBS"
+  - "make update-rubyspec"
+script:
+  - "make test TESTOPTS=--color=never"
+  - "make test-all TESTOPTS='-q -j3 --color=never --job-status=normal'"
+  - "make test-rubyspec MSPECOPT=-fm"
 
 # Branch matrix.  Not all branches are Travis-ready so we limit branches here.
 branches:
   only:
     - trunk
-    - ruby_1_9_3
+    - ruby_2_0_0
+    - ruby_2_1
+    - ruby_2_2
+    - ruby_2_3
 
 # We want to be notified when something happens.
 notifications:
@@ -57,10 +76,21 @@ notifications:
       - "irc.freenode.org#ruby-core"
       - "irc.freenode.org#ruby-ja"
     on_success: change # [always|never|change] # default: always
-    on_failure: change # [always|never|change] # default: always
+    on_failure: always # [always|never|change] # default: always
     template:
       - "%{message} by @%{author}: See %{build_url}"
 
+  # Update ruby-head installed on Travis CI so other projects can test against it.
+  webhooks:
+    urls:
+      - "https://rubies.travis-ci.org/rebuild/ruby-head"
+    on_success: always
+    on_failure: never
+
+  email:
+    - ko1c-failure@atdot.net
+    - shibata.hiroshi@gmail.com
+
 # Local Variables:
 # mode: YAML
 # coding: utf-8-unix
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000000..ffdf2dd4b8
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,4 @@
+Please see the [official issue tracker] and wiki [HowToContribute].
+
+[official issue tracker]: https://bugs.ruby-lang.org
+[HowToContribute]: https://bugs.ruby-lang.org/projects/ruby/wiki/HowToContribute
diff --git a/ChangeLog b/ChangeLog
index bf89b26762..2d26904f0b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,25840 +1,14544 @@
-Thu Jun 27 20:10:56 2013  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+Thu Dec 14 23:53:41 2017  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/openssl/lib/openssl/ssl.rb (verify_certificate_identity): fix
-	  hostname verification. Patched by nahi.
+	* test/net/ftp/test_ftp.rb (process_port_or_eprt): merge a part of
+	  r56973 to pass the test introduced at previous commit.
 
-	* test/openssl/test_ssl.rb (test_verify_certificate_identity): test for
-	  above.
+Thu Dec 14 22:55:05 2017  Shugo Maeda  <shugo@ruby-lang.org>
 
+	Fix a command injection vulnerability in Net::FTP.
 
-Thu Jun 27 13:16:40 2013  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+Thu Dec 14 22:35:19 2017  Eric Wong  <normalperson@yhbt.net>
 
-	* test/rubygems/test_gem_installer.rb (test_install_extension_flat):
-	  use ruby in build directory in case ruby is not installed.
-	  [ruby-core:53265] [Bug #8058]
+	webrick: compile RE correctly for beginning and end match
 
-Wed Jun 26 23:05:34 2013  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+	Using ^ and $ in regexps means we can accidentally get fooled
+	by "%0a" in HTTP request paths being decoded to newline
+	characters.  Use \A and \z to match beginning and end-of-string
+	respectively, instead.
 
-	* test/ruby/test_io.rb (TestIO#test_write_32bit_boundary): skip if
-	  writing a file is slow.
-	  [ruby-core:55541] [Bug #8519]
+	Thanks to mame and hsbt for reporting.
 
-Wed Jun 26 22:42:36 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/webrick/httpserver.rb (MountTable#compile):
+	  use \A and \z instead of ^ and $
+	* lib/webrick/httpserver.rb (MountTable#normalize): use \z instead of $
+	* test/webrick/test_httpserver.rb (test_cntrl_in_path): new test
 
-	* lib/mkmf.rb: should use expanded values for header directories
-	  unless extmk.  patch by vo.x (Vit Ondruch) at [ruby-core:55653]
-	  [Bug #8115], rhbz#921650.
+Thu Dec 14 22:29:04 2017  Eric Wong  <normalperson@yhbt.net>
 
-Wed Jun 26 02:25:52 2013  Akinori MUSHA  <knu@iDaemons.org>
+	webrick: do not hang acceptor on slow TLS connections
 
-	* lib/rubygems/ext/builder.rb (Gem::Ext::Builder.make): Pass
-	  DESTDIR via command line to override what's in MAKEFLAGS.  This
-	  fixes an installation problem under a package building
-	  environment where DESTDIR is specified in the (parent) command
-	  line. [Fixes GH-327]
+	OpenSSL::SSL::SSLSocket#accept may block indefinitely on clients
+	which negotiate the TCP connection, but fail (or are slow) to
+	negotiate the subsequent TLS handshake.  This prevents the
+	multi-threaded WEBrick server from accepting other connections.
 
-Tue Jun 25 00:12:19 2013  Zachary Scott  <zachary@zacharyscott.net>
+	Since the TLS handshake (via OpenSSL::SSL::SSLSocket#accept)
+	consists of normal read/write traffic over TCP, handle it in the
+	per-client thread, instead.
 
-	* array.c: Return value in Array overview example found by @PragTob
-	  [Fix GH-336] https://github.com/ruby/ruby/pull/336
+	Furthermore, using non-blocking accept() is useful for non-TLS
+	sockets anyways because spurious wakeups are possible from
+	select(2).
 
-Tue Jun 25 00:11:46 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* lib/webrick/server.rb (accept_client): use TCPServer#accept_nonblock
+	  and remove OpenSSL::SSL::SSLSocket#accept call
+	* lib/webrick/server.rb (start_thread): call OpenSSL::SSL::SSLSocket#acc
+ept
+	* test/webrick/test_ssl_server.rb (test_slow_connect): new test
+	  [ruby-core:83221] [Bug #14005]
 
-	* array.c (rb_ary_zip): typo by @PragTob [Fix GH-337]
-	  https://github.com/ruby/ruby/pull/337
+	webrick: fix up r60172
 
-Tue Jun 25 00:10:54 2013  Zachary Scott  <zachary@zacharyscott.net>
+	By making the socket non-blocking in r60172, TLS/SSL negotiation
+	via the SSL_accept function must handle non-blocking sockets
+	properly and retry on SSL_ERROR_WANT_READ/SSL_ERROR_WANT_WRITE.
+	OpenSSL::SSL::SSLSocket#accept cannot do that properly with a
+	non-blocking socket, so it must use non-blocking logic of
+	OpenSSL::SSL::SSLSocket#accept_nonblock.
 
-	* win32/README.win32: grammar typo by @blankenshipz [Fix GH-334]
-	  https://github.com/ruby/ruby/pull/334
+	Thanks to MSP-Greg (Greg L) for finding this.
 
-Sun Jun 23 00:03:18 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+	* lib/webrick/server.rb (start_thread): use SSL_accept properly
+	  with non-blocking socket.
+	  [Bug #14013] [Bug #14005]
 
-	* ext/etc/etc.c (etc_getpwnam): use PRIsVALUE in format string instead
-	  of %s and RSTRING_PTR
+	webrick: fix up r60172 and revert r60189
 
-	* ext/etc/etc.c (etc_getgrnam): ditto
+	Thanks to MSP-Greg (Greg L) for helping with this.
 
-Sat Jun 22 00:54:41 2013  Eric Hodel  <drbrain@segment7.net>
+	* lib/webrick/server.rb (start_thread): ignore ECONNRESET, ECONNABORTED,
+	  EPROTO, and EINVAL on TLS negotiation errors the same way they
+	  were ignored before r60172 in the accept_client method of the
+	  main acceptor thread.
+	  [Bug #14013] [Bug #14005]
 
-	* lib/rubygems:  Update to RubyGems 2.0.3
+	webrick: fix up r60172 and r60208
 
-	* test/rubygems:  Tests for the above.
+	Thanks to MSP-Greg (Greg L) for helping with this.
 
-	* NEWS:  Added RubyGems 2.0.3 note.
+	* lib/webrick/server.rb (start_thread): fix non-local return
+	  introduced in r60208
 
-Wed Jun 19 04:20:31 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+	webrick: fix up r60172 and r60210
 
-	* vm_insnhelper.c (vm_call_method): ensure methods of type
-	  VM_METHOD_TYPE_ATTR_SET are called with 1 argument
+	Thanks to MSP-Greg (Greg L) for helping with this.
 
-	* test/ruby/test_module.rb (class TestModule): add test
+	* lib/webrick/server.rb (start_thread): properly fix non-local return
+	  introduced in r60208 and r60210
 
-	[ruby-core:55543] [Bug #8540]
+Thu Nov 30 23:37:08 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Jun 19 03:54:04 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	parse.y: fix line in rescue
 
-	* defs/id.def (predefined): add "idProc".
+	* parse.y (set_line_body, primary): fix line number of bodystmt as the
+	  beginning of the block. [Bug #13181]
 
-	* proc.c (mnew, mproc, mlambda): use predefined IDs.
+Thu Nov 30 23:29:00 2017  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* vm.c (Init_VM): ditto.
+	Merge rubygems-2.6.14 changes.
 
-Wed Jun 19 03:54:04 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	It fixed http://blog.rubygems.org/2017/10/09/unsafe-object-deserialization-vulnerability.html
 
-	* include/ruby/intern.h (rb_block_lambda): add declaration instead of
-	  deprecated rb_f_lambda.
+Fri Sep 15 05:40:40 2017  URABE Shyouhei  <shyouhei@ruby-lang.org>
 
-Wed Jun 19 03:24:07 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+	fix --with-gmp (broken by r57490)
 
-	* include/ruby/ruby.h, vm_eval.c (rb_funcall_with_block):
-	  new function to invoke a method with a block passed
-	  as an argument.
+	Looking at the generated shell script (also the autoconf manual), it
+	seems AC_SEARCH_LIBS() m4 macro does not define HAVE_LIBsomething C
+	preprocessor macros, unlike AC_CHECK_LIB() which does define them.
+	This previous change effectively killed building with GMP because
+	building that mode depends on existence of HAVE_LIBGMP. [Bug #13402]
 
-	* string.c (sym_call): use the above function to avoid
-	  a block sharing. [ruby-dev:47438] [Bug #8531]
+Thu Sep 14 20:25:55 2017  Yusuke Endoh  <mame@ruby-lang.org>
 
-	* vm_insnhelper.c (vm_yield_with_cfunc): don't set block
-	  in the frame.
+	lib/webrick/log.rb: sanitize any type of logs
 
-	* test/ruby/test_symbol.rb (TestSymbol#test_block_given_to_proc):
-	  run related tests.
+	It had failed to sanitize some type of exception messages.  Reported and
+	patched by Yusuke Endoh (mame) at https://hackerone.com/reports/223363
 
-Wed Jun 19 03:06:57 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+Thu Sep 14 13:32:39 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_proc.rb (TestProc#test_block_given_method_to_proc):
-	  run test for r41359.
+	parse.y: empty hash in defined
 
-Wed Jun 19 03:06:57 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* parse.y (command): NODE_ARRAY with NULL is invalid.  traversal
+	  in defined_expr0 is simplified than iseq_compile_each0.
+	  [ruby-core:82113] [Bug #13756]
 
-	* include/ruby/intern.h, proc.c (rb_method_call_with_block):
-	  new function to invoke a Method object with a block passed
-	  as an argument.
+Thu Sep 14 13:26:31 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* proc.c (bmcall): use the above function to avoid a block sharing.
-	  [ruby-core:54626] [Bug #8341]
+	string.c: fix false coderange
 
-	* test/ruby/test_proc.rb (TestProc#test_block_persist_between_calls):
-	  run related tests.
+	* string.c (rb_enc_str_scrub): enc can differ from the actual encoding
+	  of the string, the cached coderange is useless then. [Bug #13874]
 
-Tue Jun 18 02:49:20 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Sep 14 13:24:51 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/envutil.rb (assert_separately): stop_auto_run of
-	  Test::Unit::Runner to prevent auto runner use ARGV.
+	parse.y: primary should not be 0
 
-	* test/ruby/envutil.rb (assert_separately): add $: to separate process.
+	* parse.y (primary): should not be 0, since it can be a receiver.
+	  [ruby-core:82447] [Bug #13836]
 
-	* test/ruby/envutil.rb (assert_separately): fail if stderr is not
-	  empty and ignore_stderr is false.
+Thu Sep 14 13:19:30 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Jun 18 02:21:54 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+	vm_method.c: alias warning at refined method
 
-	* test/ruby/envutil.rb (EnvUtil.with_default_external): add for
-	  changing Encoding.default_external without warnings.
+	* vm_method.c (rb_method_entry_make): suppress a warning at
+	  refined method which will not be redefined.
+	  [ruby-core:82385] [Bug #13817]
 
-	* test/ruby/envutil.rb (EnvUtil.with_default_internal): ditto.
+Thu Sep 14 13:14:19 2017  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* test/ruby/test_io_m17n.rb: use above with_default_external.
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_hash): st_index_t may not be
+	  fixable on 64bit mswin/mingw.
 
-Tue Jun 18 00:43:27 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* ext/date/date_core.c (d_lite_hash): ditto.
+	  [Backport #13877]
 
-	* vm_backtrace.c: Update rdoc for Backtrace#label with @_ko1
+	* ext/openssl/ossl_bn.c (ossl_bn_hash): ditto.
 
-Tue Jun 18 00:34:57 2013  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+Sat Sep  9 23:05:31 2017  Kazuki Yamaguchi <k@rhe.jp>
 
-merge revision(s) 41347: [Backport #5048] [Backport #5465] [Backport #8319]
+	asn1: fix out-of-bounds read in decoding constructed objects
 
-        * ext/tk/extconf.rb: support s390x (Thanks to bkabrda) [Bug #5465]
+	* OpenSSL::ASN1.{decode,decode_all,traverse}: have a bug of
+	  out-of-bounds read. int_ossl_asn1_decode0_cons() does not give the
+	  correct available length to ossl_asn1_decode() when decoding the
+	  inner components of a constructed object. This can cause
+	  out-of-bounds read if a crafted input given.
 
-	* ext/tk/extconf.rb: apply [Bug #5048]
+	Reference: https://hackerone.com/reports/170316
+	https://github.com/ruby/openssl/commit/1648afef33c1d97fb203c82291b8a61269e85d3b
 
-	* ext/tk/lib/tk/canvas.rb,ext/tk/sample/demos-{en,jp}/{tree.rb,widget}:
-	  fix bug (Thanks to zzak) [ruby-trunk - Bug #8319]
+Sat Sep  9 22:57:24 2017  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sun Jun 16 01:56:54 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/json: bump to version 1.8.3.1. [Backport #13853]
 
-	* array.c (FL_SET_EMBED): shared object is frozen even when get
-	  unshared.
+Sat Sep  9 22:50:10 2017  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* array.c (rb_ary_modify): ARY_SET_CAPA needs unshared array.
+	A HTTP Header value must not contain CR or LF.
+	to_str -> to_s
 
-Sun Jun 16 01:32:26 2013  TAKANO Mitsuhiro <tak@no32.tk>
+	* lib/net/http/header.rb (set_field): `val` can not have `to_str`.
 
-	* insns.def: fix condition.
+Sat Sep  9 22:42:22 2017  Kouhei Sutou  <kou@cozmixng.org>
 
-Sun Jun 16 01:22:35 2013  Eric Hodel  <drbrain@segment7.net>
+	* REXML: Fix a bug that unexpected methods can be called as a XPath
+	  function. [HackerOne:249295] Reported by Andrea Jegher. Thanks!!!
 
-	* ext/socket/extconf.rb:  Enable RFC 3542 IPV6 socket options for OS X
-	  10.7+.  [ruby-trunk - Bug #8517]
+Sat Sep  9 22:16:01 2017  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sun Jun 16 01:11:10 2013  Koichi Sasada  <ko1@atdot.net>
+	* lib/rubygems: fix several vulnerabilities in RubyGems; bump to version
+	  2.5.2.1. [Backport #13842]
 
-	* compile.c (rb_iseq_compile_node): fix location of a `trace'
-	  instruction (b_return event).
-	  [ruby-core:55305] [ruby-trunk - Bug #8489]
-	  (need a backport to 2.0.0?)
+Wed Aug  9 22:27:23 2017  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* test/ruby/test_settracefunc.rb: add a test.
-
-Sun Jun 16 00:30:56 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_eval.c (eval_string_with_cref): propagate absolute path from the
-	  binding if it is given explicitly.  patch by Gat (Dawid Janczak) at
-	  [ruby-core:55123]. [Bug #8436]
-
-Wed Jun 12 23:41:21 2013  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* vm_insnhelper.c (vm_yield_setup_block_args): partially revert r41019.
-	  The code is not useless.
-
-Wed Jun 12 23:41:21 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_insnhelper.c (vm_yield_setup_block_args): split single parameter
-	  if any keyword arguments exist, and then extract keyword arguments.
-	  [ruby-core:55203] [Bug #8463]
-
-Wed Jun 12 23:05:41 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (io_getc): fix 7bit coderange condition, check if ascii read
-	  data instead of read length. [ruby-core:55444] [Bug #8516]
-
-Sun Jun  9 02:27:07 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (install_dirs, with_destdir): prefix with DESTDIR
-	  directories to install only unless bundled extension libraries.
-	  [ruby-core:53502] [Bug #8115]
-
-Sun Jun  9 02:17:16 2013  Charlie Somerville  <charliesome@ruby-lang.org>
-
-	* class.c (include_modules_at): invalidate method cache if included
-	  module contains constants
-
-	* test/ruby/test_module.rb: add test
-
-Sun Jun  9 01:59:39 2013  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-merge revision 40783 (partially): [Backport #8413]
-
-	* win32/Makefile.sub: fix a typo in config.h.
-
-Sun Jun  9 01:38:55 2013  Charlie Somerville  <charliesome@ruby-lang.org>
-
-	* intern.h: remove dangling rb_class_init_copy declaration
-	  [ruby-core:55120] [Bug #8434]
-
-Sun Jun  9 01:30:57 2013  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/imap.rb (capability_response): should ignore trailing
-	  spaces.  Thanks, Peter Kovacs.  [ruby-core:55024] [Bug #8415]
-
-	* test/net/imap/test_imap_response_parser.rb: related test.
-
-Wed Jun  5 00:38:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/zlib/zlib.c (gzfile_read, gzfile_read_all, gzfile_getc),
-	  (gzreader_gets): check EOF.  [ruby-core:55220] [Bug #8467]
-
-Wed Jun  5 00:32:18 2013  Tanaka Akira  <akr@fsij.org>
-
-	* test/ruby/test_require.rb: Remove temporally files in the tests.
-
-	* test/ruby/test_rubyoptions.rb: Ditto.
-
-	* test/logger/test_logger.rb: Ditto.
-
-	* test/psych/test_psych.rb: Ditto.
-
-	* test/readline/test_readline.rb: Ditto.
-
-	* test/syslog/test_syslog_logger.rb: Ditto.
-
-	* test/webrick/test_httpauth.rb: Ditto.
-
-	* test/zlib/test_zlib.rb: Ditto.
-
-Wed Jun  5 00:08:55 2013  Yusuke Endoh  <mame@tsg.ne.jp>
-
-	* dir.c (bracket): fix copy-paste error.  When the first and last
-	  characters of fnmatch range have different length, fnmatch may
-	  have wrongly matched a path that does not really match.
-	  Coverity Scan found this bug.
-
-Wed Jun  5 00:04:12 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_quote_unprintable): check if argument is a string.
-
-Tue Jun  4 23:42:18 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* load.c (loaded_feature_path): fix invalid read by index underflow.
-	  the beginning of name is also a boundary as well as just after '/'.
-
-Tue Jun  4 23:32:12 2013  Charlie Somerville  <charliesome@ruby-lang.org>
-
-	* variable.c (set_const_visibility): use rb_frame_this_func() instead
-	  of rb_frame_callee() for getting the name of the called method
-
-	* test/ruby/test_module.rb: add test for private_constant with no args
-
-Tue Jun  4 23:27:24 2013  Yusuke Endoh  <mame@tsg.ne.jp>
-
-	* vm_insnhelper.c (vm_callee_setup_keyword_arg,
-	  vm_callee_setup_arg_complex): consider a hash argument for keyword
-	  only when the number of arguments is more than the expected
-	  mandatory parameters.  [ruby-core:53199] [ruby-trunk - Bug #8040]
-
-	* test/ruby/test_keyword.rb: update a test for above.
-
-Tue Jun  4 00:46:05 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (setup_overlapped, finish_overlapped): extract from
-	  rb_w32_read() and rb_w32_write().
-
-Tue Jun  4 00:02:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_core.h (rb_vm_tag): move jmpbuf between tag and prev so ensure to
-	  be accessible.
-
-Tue Jun  4 00:02:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval_intern.h (TH_PUSH_TAG): ensure jmpbuf to be accessible before
-	  pushing tag to get rid of unaccessible tag by stack overflow.
-
-Mon Jun  3 23:22:58 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (iseq_compile_each): forward anonymous and first keyword
-	  rest argument one.  [ruby-core:55033] [Bug #8416].
-
-Sun Jun  2 22:39:24 2013  Zachary Scott  <zachary@zacharyscott.net>
-
-	* range.c: Fix rdoc on Range#bsearch [Bug #8242] [ruby-core:54143]
-
-Mon May 20 04:00:48 2013  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/yaml.rb: YAML documentation from #8344 [Bug #8355]
-
-Wed May 15 23:22:09 2013  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* include/ruby/intern.h: should include sys/time.h for struct timeval
-	  if it exists. [ruby-list:49363]
-
-Tue May 14 20:21:41 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/config_file.rb:  Lazily load .gem/credentials to only
-	  check permissions when necessary.  RubyGems bug #465
-	* test/rubygems/test_gem_config_file.rb:  Test for the above.
-
-	* test/rubygems/test_gem_commands_push_command.rb:  Remove duplicated
-	  test.
-
-Tue May 14 20:11:00 2013  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+	* test/ruby/test_syntax.rb (test_invalid_{break,next}): use
+	  assert_in_out_err instead of assert_syntax_error because on ruby_2_3
+	  assert_syntax_error uses eval.
 
-	* ext/dl/lib/dl/func.rb (DL::Function#call): check tainted when
-	  $SAFE > 0.
-	* ext/fiddle/function.c (function_call): check tainted when $SAFE > 0.
-	* test/fiddle/test_func.rb (module Fiddle): add test for above.
+Wed Aug  9 22:27:23 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
+	* compile.c (iseq_compile_each0): turned dregx context in "once"
+	  into "guarded" type from "block" type, to disallow `next`,
+	  `break`, `redo` as well as outside "once".
+	  [Bug #13690]
 
-Sun May 12 22:42:25 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Wed Aug  9 21:28:34 2017  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* signal.c (rb_f_kill): fixes typo. s/HAS_KILLPG/HAVE_KILLPG/.
+	* test/ruby/test_process.rb (test_rlimit_{name,value}): test in UTF-8
+	  encoding.  fix test failures introduced at r59531 on some platforms.
 
-Sun May 12 04:23:06 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Aug  9 21:16:22 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* parse.y (parser_peek_variable_name): treat invalid global, class,
-	  and instance variable names as mere strings rather than errors.
-	  [ruby-core:54885] [Bug #8375]
+	* marshal.c (rb_marshal_dump_limited): do not free dump_arg, which
+	  may be dereferenced in check_dump_arg due to continuation, and
+	  get rid of dangling pointers.
 
-Sun May 12 04:23:06 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* marshal.c (rb_marshal_load_with_proc): ditto for load_arg.
 
-	* parse.y (parser_yylex): fail if $, @, @@ are not followed by a valid
-	  name character.  [ruby-core:54846] [Bug #8375].
+Wed Aug  9 21:13:24 2017  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Sun May 12 02:50:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* compile.c (iseq_compile_each): remove unused definition of unused
+	  variable derived from original patch.
 
-	* configure.in (RUBY_RM_RECURSIVE): this hack is needed by only
-	  autoconf 2.69 or earlier on darwin.
+Wed Aug  9 19:45:16 2017  sorah (Shota Fukumori)  <her@sorah.jp>
 
-Sun May 12 02:50:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	Init_frozen_strings definition is removed in r51511.
+	https://bugs.ruby-lang.org/issues/11423
 
-	* configure.in (rm, shvar_to_cpp, unexpand_shvar): local is not
-	  available on old shells.
+	Patch by Kohei Suzuki <eagletmt@gmail.com>
 
-	* configure.in (shvar_to_cpp): escape quotes for old shells.
-	  [Bug #7959] [Bug #8071]
+	* internal.h: Remove declaration of unexist function
+	  [Fix GH-1558]
 
-Thu May  9 23:39:47 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Aug  9 19:34:17 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* class.c (rb_mod_included_modules): should not include non-modules.
-	  [ruby-core:53158] [Bug #8025]
+	* internal.h (THROW_DATA_P): parenthesize the argument which is
+	  casted.
 
-Thu May  9 23:39:47 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Aug  9 19:34:17 2017  Koichi Sasada  <ko1@atdot.net>
 
-	* class.c (rb_mod_included_modules): should not include the original
-	  module itself.  [ruby-core:53158] [Bug #8025]
+	* vm.c: get return_value from imemo_throw_data object (THROW_DATA_VAL()).
+	  imemo_throw_data (TAG_BREAK) contains returned value.
+	  However, imemo_throw_data (TAG_BREAK) can skip several frames so that
+	  we need to use it only once (at most internal frame). To record it,
+	  we introduced THROW_DATA_CONSUMED and check it.
 
-Wed May  8 23:07:19 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* internal.h: define THROW_DATA_CONSUMED flag.
 
-	* insns.def (defined): use vm_search_superclass() like as normal super
-	  call.  based on a patch <https://gist.github.com/wanabe/5520026> by
-	  wanabe.
+	* test/ruby/test_settracefunc.rb: add tests for [Bug #13369]
 
-	* vm_insnhelper.c (vm_search_superclass): return error but not raise
-	  exceptions.
+	* vm_insnhelper.h: add THROW_DATA_CONSUMED_P() and
+	  THROW_DATA_CONSUMED_SET().
 
-	* vm_insnhelper.c (vm_search_super_method): check the result of
-	  vm_search_superclass and raise exceptions on error.
+Wed Aug  9 19:32:17 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed May  8 23:07:19 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* random.c (get_rnd, try_get_rnd): ensure initialized to get rid
+	  of crash in forked processes. [Bug #13753]
 
-	* insns.def (defined): get method entry from the method top level
-	  frame, not block frame.  [ruby-core:54769] [Bug #8367]
+Wed Aug  9 19:30:34 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed May  8 01:18:41 2013  Tanaka Akira  <akr@fsij.org>
+	* ext/strscan/strscan.c (strscan_aref): fix segfault after
+	  get_byte or getch which do not apply regexp.
+	  [Bug #13759]
 
-	* internal.h (MUL_OVERFLOW_SIGNED_INTEGER_P): New macro.
-	  (MUL_OVERFLOW_FIXNUM_P): Ditto.
-	  (MUL_OVERFLOW_LONG_P): Ditto.
+Wed Aug  9 19:28:40 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* array.c (rb_ary_product): Don't overflow on signed integer
-	  multiplication.
+	* configure.in: add rpath flags which is needed for OPTDIR as well
+	  as -L options, when it is given. [Bug #13411]
 
-	* numeric.c (fix_mul): Ditto.
-	  (int_pow): Ditto.
+Wed Aug  9 19:14:07 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* rational.c (f_imul): Ditto.
+	* vm_insnhelper.c (vm_throw_start): size of catch table has been
+	  included in iseq_catch_table struct, which could be NULL, since
+	  2.2. e.g., proc-closure in `once'. 
 
-	* insns.def (opt_mult): Ditto.
+Wed Aug  9 19:09:20 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* thread.c (sleep_timeval): Don't overflow on signed integer addition.
+	* node.h (nd_line): should sign-extend.  shifting `VALUE` extends
+	  with zero bits if `sizeof(VALUE)` equals to `sizeof(int)`.  the
+	  zero bits are truncated if `sizeof(VALUE)` is bigger enough.
+	  [ruby-core:80920] [Bug #13523]
 
-	* bignum.c (rb_int2big): Don't overflow on signed integer negation.
-	  (rb_big2ulong): Ditto.
-	  (rb_big2long): Ditto.
-	  (rb_big2ull): Ditto.
-	  (rb_big2ll): Ditto.
+Wed Aug  9 17:53:09 2017  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Tue May  7 20:13:12 2013  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+	* compile.c (iseq_compile_each): the lifetime of new_opt have to be
+	  until this case block is end.  this is a part of r57971.
+	  [Backport #13766]
 
-	* test/ruby/test_thread.rb (invoke_rec): extend timeout 10 -> 50 sec,
-	  to investigate test failure on rubyci.
-	  http://a.mrkn.jp/~mrkn/chkbuild/mountain_lion/ruby-2.0.0-m64-o0/log/20130507T052909Z.log.html.gz
+Wed Aug  9 17:35:47 2017  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sat May  4 23:48:56 2013  Zachary Scott  <zachary@zacharyscott.net>
+	this patch contains r54158, r57410, r57631 and r57954.
 
-	* doc/security.rdoc: Add note about reporting security vulns
+	Prevent GC by volatile [Bug #13150]
 
-Sat May  4 23:44:54 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	test/ruby/test_marshal.rb test_context_switch (load) and test_gc (dump)
+	are failed on FreeBSD 10.3 and gcc7 (FreeBSD Ports Collection) 7.0.0
+	20170115 (experimental); RB_GC_GUARD looks not worked well.
 
-	* object.c (rb_obj_is_kind_of): skip prepending modules.
-	  [ruby-core:54742] [Bug #8357]
+	* include/ruby/ruby.h (RB_GC_GUARD): prevent guarded pointer from
+	  optimization by using as an input to inline asm.
 
-	* object.c (rb_class_inherited_p): ditto.
-	  [ruby-core:54736] [Bug #8357]
+	* ruby.h: remove comment
 
-Thu May  2 23:39:45 2013  Tanaka Akira  <akr@fsij.org>
+	* include/ruby/ruby.h (RB_GC_GUARD): remove comment unsupported by
+	  Solaris AS.
 
-	* thread.c (double2timeval): convert the infinity to TIME_MAX to avoid
-	  SEGV by Thread.new {}.join(Float::INFINITY) on
-	  Debian GNU/Linux (amd64).
+	Hidden objects (klass == 0) are not visible to Ruby code invoked
+	from other threads or signal handlers, so they can never be
+	accessed from other contexts.  This makes it safe to call
+	rb_gc_force_recycle on the object slot after releasing malloc
+	memory.
 
-Thu May  2 00:30:00 2013  Tanaka Akira  <akr@fsij.org>
+	* marshal.c (rb_marshal_dump_limited): hide dump_arg and recycle when
+	  done (rb_marshal_load_with_proc): hide load_arg and recycle when done
+	  [ruby-core:79518]
 
-	* thread_pthread.c (ruby_init_stack): Add STACK_GROW_DIR_DETECTION.
-	  This fixes a compilation failure while cross-compiling for Tensilica
-	  Xtensa Processor.
+	* marshal.c (rb_marshal_dump_limited): do not free dump_arg, which
+	  may be dereferenced in check_dump_arg due to continuation, and
+	  get rid of dangling pointers.
 
-Thu May  2 00:19:46 2013  Tanaka Akira  <akr@fsij.org>
+	* marshal.c (rb_marshal_load_with_proc): ditto for load_arg.
 
-	* dir.c (dir_set_pos): Fix a compilation error when seekdir() is not
-	  exist.
+Wed Aug  9 17:28:35 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu May  2 00:16:36 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* eval.c (setup_exception): make unfrozen copy of special
+	  exception before setting up a cause.
 
-	* README.EXT: correct method name to be used.  [Bug #7982]
+Wed Aug  9 17:22:29 2017  TAKANO `takano32' Mitsuhiro  <tak@no32.tk>
 
-	* README.EXT.ja: add notes too.
+	a64: fix crash on register stack mark/sweep pass
 
-Thu May  2 00:16:36 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* thread_pthread.c: move 'register_stack_start' earlier.
+	  [ruby-core:79928] [Bug #13284] [Fix GH-1625]
 
-	* README.EXT: Copy note from r40505 for rb_sprintf() [Bug #7982]
+	Author:    Sergei Trofimovich <slyfox@gentoo.org>
 
-Thu May  2 00:16:36 2013  Zachary Scott  <zachary@zacharyscott.net>
+Wed Aug  9 17:10:27 2017  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* README.EXT: Update note from r40504, by Jeremy Evans [Bug #7982]
+	* test/net/smtp/test_smtp.rb (test_tls_connect, test_tls_connect):
+	  use Socket.tcp_server_sockets in case localhost is resolved to ::1.
 
-Thu May  2 00:16:36 2013  Zachary Scott  <zachary@zacharyscott.net>
+Wed Aug  9 17:10:27 2017  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* README.EXT: Add note to warn use of %i in Exceptions [Bug #7982]
+	* lib/net/smtp.rb (tlsconnect): support timeout for TLS handshake.
+	  [ruby-core:76893] [Bug #12678]
 
-Wed May  1 23:35:18 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/net/protocol.rb (ssl_socket_connect): new method to implement
+	  timeout for TLS handshake.
 
-	* io.c (rb_io_ext_int_to_encs, parse_mode_enc): bom-prefixed name is
-	  not a real encoding name, just a fallback.  so the proper conversion
-	  should take place even if if the internal encoding is equal to the
-	  bom-prefixed name, unless actual encoding is equal to the internal
-	  encoding.  [ruby-core:54563] [Bug #8323]
+	* lib/net/http.rb (connect): use Net::Protocol#ssl_socket_connect.
 
-	* io.c (io_set_encoding_by_bom): reset extenal encoding if no BOM
-	  found.  [ruby-core:54569]
+Wed Aug  9 17:08:01 2017  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Sat Apr 27 02:12:14 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	Zlib::GzipReader#pos underflows after calling #ungetbyte or #ungetc at start of file [Bug #13616]
 
-	* io.c (rb_fd_fix_cloexec): use rb_update_max_fd().
+	patched by Andrew Haines <andrew@haines.org.nz> [ruby-core:81488]
+	zlib.c: fix unnormalized Fixnum
 
-Sat Apr 27 02:12:14 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* ext/zlib/zlib.c (rb_gzfile_total_out): cast to long not to
+	  result in an unsigned long to normalized to Fixnum on LLP64
+	  platforms.  [ruby-core:81488]
 
-	* io.c (rb_update_max_fd): use ATOMIC_CAS because this function
-	  is used from timer thread too.
+Wed Aug  9 17:03:00 2017  Eric Wong  <normalperson@yhbt.net>
 
-Sat Apr 27 01:57:43 2013  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+	process.c: handle dynamic :rlimit_* symbols in spawn execopts
 
-	* configure.in: use quadrigraphs. workaround for autoconf 2.64.
-	  a patch provided by Hessob Park. [ruby-core:53157] [Backport #8020]
+	* process.c (rb_execarg_addopt_rlimit): hoist out of rb_execarg_addopt
+	  (rlimit_type_by_sym): new wrapper for dynamic symbol
+	  (rb_execarg_addopt): check for dsym via rlimit_type_by_sym
+	* test/ruby/test_process.rb (test_execopts_rlimit): check dsym w/o pindown
+	  Add extra check for bogus rlimit args, too.
+	  [ruby-core:82033] [Bug #13744]
+	process.c: null bytes
 
-Sat Apr 27 00:39:28 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+	* process.c (rlimit_type_by_sym): prohibit null bytes in key
+	  names.  [ruby-core:82033] [Bug #13744]
 
-	* string.c (rb_str_inspect): refix r40413, on Ruby 1.9 usual character
-	  escape uses hex/Unicode escapes, so fix to use Unicode escape on
-	  Unicode strings and hex on others. [ruby-core:54458] [Bug #8290]
+Wed Aug  9 16:56:52 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Apr 27 00:39:28 2013  Akinori MUSHA  <knu@iDaemons.org>
+	optparse.rb: get rid of eval
 
-	* test/ruby/test_module.rb
-	  (TestModule#test_const_get_invalid_name)
-	  (test_const_defined_invalid_name): Fix expected values.
+	* lib/optparse.rb: try Float() and Integer() instead of eval,
+	  which does too much things.
 
-Sat Apr 27 00:39:28 2013  Akinori MUSHA  <knu@iDaemons.org>
 
-	* string.c (rb_str_inspect): NUL should not be represented as "\0"
-	  when octal digits may follow.  [ruby-core:54458] [Bug #8290]
+Fri Jul  7 10:58:10 2017  Eric Wong  <e@80x24.org>
 
-Fri Apr 26 23:48:58 2013  Tanaka Akira  <akr@fsij.org>
+	This backport of r58812 is necessary to ease backporting r59028,
+	which fixes a real bug.
 
-	* thread_pthread.c (ruby_init_stack): Add STACK_GROW_DIR_DETECTION.
-	  This fixes a compilation failure while cross-compiling for ARM.
+	* thread.c (struct waiting_fd): declare
+	  (rb_thread_io_blocking_region): use on-stack list waiter
+	  (rb_notify_fd_close): walk vm->waiting_fds instead
+	  (call_without_gvl): remove old field setting
+	  (th_init): ditto
+	  [Feature #9632]
 
-Fri Apr 26 23:32:09 2013  Kouhei Sutou  <kou@cozmixng.org>
+	* vm_core.h (typedef struct rb_vm_struct): add waiting_fds list
 
-	* lib/rss/atom.rb (RSS::Atom::Entry): Fix indent of document comment.
+	* (typedef struct rb_thread_struct): remove waiting_fd field
+	  (rb_vm_living_threads_init): initialize waiting_fds list
 
-Fri Apr 26 23:32:09 2013  Kouhei Sutou  <kou@cozmixng.org>
+	This should fix bad interactions with test_race_gets_and_close
+	in test/ruby/test_io.rb since we ensure rb_notify_fd_close
+	continues returning the busy flag after enqueuing the interrupt.
 
-	* lib/rss/maker.rb (RSS::Maker): Fix indent of document comment.
+	* thread.c (rb_notify_fd_close): do not enqueue multiple interrupts
+	  [ruby-core:81581] [Bug #13632]
 
-Fri Apr 26 23:32:09 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* test/ruby/test_io.rb (test_single_exception_on_close):
+	  new test based on script from Nikolay
 
-	* lib/rss/atom.rb: Documentation for RSS::Atom based on a patch by
-	  Michael Denomy
-	* lib/rss/maker.rb: Documentation for RSS::Maker also by @mdenomy
+Wed Jul  5 15:55:35 2017  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Thu Apr 25 00:40:41 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* ext/openssl/ossl_cipher.c: remove the encryption key initialization
+	  from Cipher#initialize. This is effectively a revert of r32723
+	  ("Avoid possible SEGV from AES encryption/decryption", 2011-07-28).
+	  the patch is derived from https://github.com/ruby/openssl/commit/8108e0a6db133f3375608303fdd2083eb5115062,
+	  written by Kazuki Yamaguchi.
+	  [Backport #8221]
 
-	* numeric.c: Fix wiki link on Float imprecision in overview, patched
-	  by Makoto Kishimoto [Bug #8304] [ruby-dev:47280]
+Sat Jul  1 00:28:22 2017  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Apr 25 00:39:16 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* ext/psych/yaml: update libyaml to 0.1.7.
 
-	* string.c: Document String#setbyte return value by @gjmurakami-10gen
-	  [Fixes GH-294]
+	* ext/psych/psych.gemspec: bump version to 2.1.0.1.
 
-Thu Apr 25 00:38:06 2013  Zachary Scott  <zachary@zacharyscott.net>
+Fri Jun 30 22:05:39 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/lib/socket.rb: Doc typos by @vipulnsward [Fixes GH-292]
+	* parse.y (parser_precise_mbclen): check invalid multibyte char at
+	  skipping strings following ?x literal string, not to stuck in a
+	  infinite loop. [Bug #13672]
 
-Tue Apr 23 23:06:43 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jun 30 22:00:56 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_method.c (rb_mod_public_method): fix visibility on anonymous
-	  module. set visibility of singleton method, not method in base
-	  class.  [ruby-core:54404] [Bug #8284]
+	* ext/pathname/lib/pathname.rb (Pathname#plus): UNC root pathname needs
+	  a separator. File.basename returns "/" on UNC root, as well as sole
+	  drive letter, even if it does not end with a separator. [Bug #13515]
 
-Tue Apr 23 22:33:16 2013  Shugo Maeda  <shugo@ruby-lang.org>
+Fri Jun 30 21:57:27 2017  Kouhei Sutou  <kou@cozmixng.org>
 
-	* lib/net/imap.rb (getacl_response): parse the mailbox of an ACL
-	  response correctly.  [ruby-core:54365] [Bug #8281]
+	* lib/rexml/parsers/streamparser.rb: add close tag check on end of
+	  document to StreamParser [Bug #13636]
+	  Reported by Anton Sivakov. Thanks!!!
 
-Sun Apr 21 00:14:36 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+Fri Jun 30 21:54:01 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_require.rb (TestRequire#test_require_nonascii_path):
-	  RUBY_PLATFORM should escape as Regexp,
-	  because RUBY_PLATFORM may contain '.'.
+	* array.c (rb_ary_insert): check position to insert even if no elements
+	  to be inserted. [Bug #13558]
 
-Sun Apr 21 00:14:36 2013  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+Fri Jun 30 21:51:40 2017  Marcus Stollsteimer  <sto.mar@web.de>
 
-	* test/ruby/test_require.rb (TestRequire#test_require_nonascii_path):
-	  fix load path for encoding to run the test as stand-alone.
+	* ext/date/date_core.c: [DOC] fix documentation for %Z format of
+	  {Date,DateTime}.strftime.
+	  Reported by Damon Timm. Based on a patch by nano.
+	  [Bug #13231] [Fix GH-1565]
 
-Sun Apr 21 00:14:36 2013  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+Fri Jun 30 21:46:50 2017  Kouhei Sutou  <kou@cozmixng.org>
 
-	* load.c (features_index_add): use rb_str_subseq() to specify C string
-	  position properly to fix require non ascii path.
-	  [ruby-core:53733] [Bug #8165]
+	* lib/rss/rss.rb: Accept empty text element as valid element
+	  Parser has been accepted it but XML serializer wasn't accepted.
+	  Reported by stefano frabetti. Thanks!!!
+	  [Bug #13531]
 
-	* test/ruby/test_require.rb (TestRequire#test_require_nonascii_path):
-	  a test for the above.
+Fri Jun 30 21:40:42 2017  Kazuki Yamaguchi <k@rhe.jp>
 
-Sun Apr 21 00:13:24 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/ossl_x509store.c: clear error queue after calling
+	  X509_LOOKUP_load_file()
 
-	* load.c (rb_feature_p), vm_core.h (rb_vm_struct): turn
-	  loaded_features_index into st_table.  patches by tmm1 (Aman Gupta)
-	  in [ruby-core:53251] and [ruby-core:53274] [Bug #8048]
+	  X509_LOOKUP_load_file(), which ends up calling
+	  X509_load_cert_crl_file()
+	  internally, may leave error entries in the queue even when it returns
+	  non-zero value (which indicates success).
 
-Sun Apr 21 00:13:24 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  This will be fixed by OpenSSL 1.1.1, but can be worked around by
+	  clearing the error queue ourselves.
 
-	* load.c (features_index_add_single, rb_feature_p): store single index
-	  as Fixnum to reduce the number of arrays for the indexes.  based on
-	  the patch by tmm1 (Aman Gupta) in [ruby-core:53216] [Bug #8048].
+	  Fixes: [Backport #11033]
 
-Sat Apr 20 23:32:06 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jun 30 21:35:16 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* dir.c (glob_helper): should skip dot directories only for recursion,
-	  but should not if matching to the given pattern.  [ruby-core:54387]
-	  [Bug #8283]
+	* gc.c (heap_page_allocate): expand sorted pages before inserting
+	  allocated new page. [Bug #12670]
 
-Sat Apr 20 02:37:33 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jun 30 21:33:39 2017  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/curses/curses.c (Init_curses): fix implementation function,
-	  crmode should be same as cbreak.  [ruby-core:54013] [Bug #8222]
+	* gc.c (heap_page_resurrect): do not return tomb_pages when
+	  page->freelist == NULL.
+	  [Bug #12670]
 
-Sat Apr 20 02:09:46 2013  Martin Bosslet  <Martin.Bosslet@gmail.com>
+Fri Jun 30 21:23:20 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/openssl/ossl_ssl.c: Correct shutdown behavior w.r.t GC.
+	* vsnprintf.c (BSD_vfprintf): sign and hex-prefix should not be counted
+	  in precision. [Bug #8916]
 
-	* test/openssl/test_ssl.rb: Add tests to verify correct behavior.
+Fri Jun 30 21:20:14 2017  Koichi Sasada  <ko1@atdot.net>
 
-	[Bug #8240] Patch provided by Shugo Maeda. Thanks!
+	* thread.c (ruby_thread_stack_overflow): disable VM events when stack
+	  overflow occurred; it causes another stack overflow again in making
+	  backtrace object, and crashes. [Bug #13425]
 
-Sat Apr 20 01:56:32 2013  Yuki Yugui Sonoda  <yugui@google.com>
+	* vm.c (hook_before_rewind): skip rewind hooks if err is
+	  SystemStackError because rewind hooks can cause stack overflow again
+	  and again.
 
-	* thread_pthread.c (ruby_init_stack): Avoid using uninitialized value.
-	  stackaddr and size are not set if get_stack() fails.
+	* thread.c (ruby_thread_stack_overflow): do not disable all hooks.
+	  Additionally, clearing ruby_vm_event_flags is not suitable way
+	  to disable hooks.
 
-Sat Apr 20 01:47:31 2013  Yuki Yugui Sonoda  <yugui@google.com>
+Fri Jun 30 21:13:25 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* thread_pthread.c: Fixes wrong scopes of #if USE_SLEEPY_TIMER_THREAD
-	  .. #endif sections.  This fixes a build error on NativeClient.
+	* proc.c (method_super_method): skip prepended modules and continue from
+	  the super class of the original class. [Bug #13656]
 
-Sat Apr 20 01:31:38 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+Fri Jun 30 21:10:48 2017  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* Merge Onigmo 5.13.4 f22cf2e566712cace60d17f84d63119d7c5764ee.
-	  [bug] fix problem with optimization of \z (Issue #16) [Bug #8210]
+	* lib/net/smtp.rb (getok, get_response): raise an ArgumentError when
+	  CR or LF is included in a line, because they are not allowed in
+	  RFC5321.  Thanks, Jeremy Daer.
 
-Sat Apr 20 01:18:20 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jun 30 21:07:56 2017  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* vm_insnhelper.c (vm_callee_setup_keyword_arg): non-symbol key is not
-	  a keyword argument, keep it as a positional argument.
+	* eval.c (exc_setup_cause): need to unfreeze(=dup) the exception before
+	  setting cause if its frozen.
 
-Sat Apr 20 01:14:08 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jun 30 21:07:14 2017  Eric Wong  <e@80x24.org>
 
-	* thread.c (rb_mutex_synchronize_m): yield no block params.  patch by
-	  splattael (Peter Suschlik) in [ruby-core:53773] [Bug #8097].
-	  fix GH-266.
+	thread.c: avoid busy looping on rb_thread_fd_close
 
-Sat Apr 20 00:41:10 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	We no longer use it this function, but extensions do, and
+	we need to ensure it continues to work for them.
 
-	* compile.c (iseq_compile_each): append keyword hash to argument array
-	  to splat if needed.  [ruby-core:54094] [Bug #8236]
+	* thread.c (rb_thread_fd_close): schedule other threads in loop
 
-Sat Apr 20 00:31:57 2013  Kouhei Sutou  <kou@cozmixng.org>
+	* ext/-test-/thread_fd_close/thread_fd_close.c: new file
 
-	* README.EXT.ja (Data_Wrap_Struct): Remove a description about
-	  orphan argument. Oh, I renamed the argument name without
-	  changing description at r36180... Sorry....
-	  Patch by Makoto Kishimoto. Thanks!!! [ruby-dev:47269] [Bug #8292]
-	* README.EXT.ja (Data_Make_Struct): Add a sample code that describes
-	  how it works.
-	  Patch by Makoto Kishimoto. Thanks!!! [ruby-dev:47269] [Bug #8292]
+	* ext/-test-/thread_fd_close/depend: ditto
 
-Tue Apr 16 01:30:47 2013  Kenta Murata  <mrkn@mrkn.jp>
+	* ext/-test-/thread_fd_close/extconf.rb: ditto
 
-	* configure.in: set ac_cv_prog_cxx if CXX is supplied.
+	* test/-ext-/thread_fd_close/test_thread_fd_close.rb: new test
 
-Tue Apr 16 01:30:47 2013  Kenta Murata  <mrkn@mrkn.jp>
+Fri Jun 30 20:34:49 2017  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-	* configure.in: Fix c++ compiler auto-selection not only for
-	  Darwin 11.x, but also the other versions of Darwin.
+	* sample/pty/shl.rb: update sample
+	  * Specify frozen_string_literal: true.
+	  * Fix TypeError of raise.
+	  * Use a character literal instead of Integer.
 
-Tue Apr 16 00:27:56 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jun 30 20:31:59 2017  Marcus Stollsteimer  <sto.mar@web.de>
 
-	* compile.c (iseq_compile_each): fix of defined? with empty
-	  expression.  [ruby-core:53999] [Bug #8220]
+	* string.c: [DOC] clarify docs for String#split when called with limit
+	  and capture groups. Reported by Cichol Tsai. [Bug #13621]
 
-Mon Apr 15 00:25:00 2013  Tanaka Akira  <akr@fsij.org>
+Fri Jun 30 20:23:31 2017  Takashi Kokubun  <takashikkbn@gmail.com>
 
-	* time.c (num_exact): use to_r method only if to_int method is
-	  available.
-	  [ruby-core:53764] [Bug #8173] reported by Hiro Asari.
-
-Mon Apr 15 00:22:09 2013  Shota Fukumori  <her@sorah.jp>
-
-	* ext/objspace/objspace.c: Fix typo in doc. Patch by Sho Hashimoto.
-	  [Bug #8116] [ruby-dev:47177]
-
-Mon Apr 15 00:15:04 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* class.c (HAVE_METACLASS_P): should check FL_SINGLETON flag before get
-	  instance variable to get rid of wrong warning about __attached__.
-	  [ruby-core:53839] [Bug #8188]
-
-Mon Apr 15 00:13:13 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/file.c (code_page): use cp1252 instead of cp20127 as US-ASCII.
-	  fix [ruby-core:53079] [Bug #7996]
-	  reported and patched by mmeltner (Michael Meltner).
-
-Mon Apr 15 00:07:31 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/io.h: undef POSIX compliant names on AIX, which are no
-	  longer needed.  patch suggested by edelsohn (David Edelsohn) in
-	  [ruby-core:53815].  [Bug #8174]
-
-Mon Apr 15 00:07:31 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/io.h: rename SVR3,4 member names as POSIX compliant,
-	  to get rid of conflict on AIX.  [ruby-core:53765] [Bug #8174]
-
-Sun Apr 14 23:49:48 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (configuration): not include all CFLAGS in CXXFLAGS, to
-	  use different set than C for C++.  [ruby-core:45273] [Bug #6504]
-
-Sun Apr 14 23:43:06 2013  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/fiddle/closure.c (initialize): check mprotect's return value.
-	  If mprotect is failed because of PaX or something, its function call
-	  will cause SEGV.
-	  http://c5664.rubyci.org/~chkbuild/ruby-trunk/log/20130401T210301Z.diff.html.gz
-
-Sun Apr 14 23:19:55 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (MAIN_DOES_NOTHING): ensure symbols for tests to be
-	  preserved.  [ruby-core:53745] [Bug #8169]
-
-Sun Apr 14 23:19:55 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (MAIN_DOES_NOTHING): force to refer symbols for tests
-	  to be preserved.  [ruby-core:53745] [Bug #8169]
-
-Sun Apr 14 03:00:51 2013  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* configure.in (AC_CHECK_HEADERS): atomic.h for Solaris atomic_ops.
-
-	* ruby_atomic.h: Skip using Solaris10 atomic_ops on Solaris 9 or
-	  earlier if atomic.h is not available. [ruby-dev:47229] [Bug #8228]
-
-Sun Apr 14 02:32:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* time.c (GetTimeval): check if already initialized instance.
-
-	* time.c (GetNewTimeval): check if newly created instance.
-
-	* time.c (time_init_0, time_init_1, time_init_copy, time_mload): must
-	  be newly created instance.  [ruby-core:53436] [Bug #8099]
-
-Sun Apr 14 02:13:25 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* vm_eval.c (check_funcall_respond_to): preserve passed_block, which
-	  is modified in vm_call0_body() via vm_call0(), and caused a bug of
-	  rb_check_funcall() by false negative result of rb_block_given_p().
-	  re-fix [ruby-core:53650] [Bug #8153].
-	  [ruby-core:53653] [Bug #8154]
-
-Fri Apr 12 04:16:30 2013  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* marshal.c (marshal_dump, marshal_load): workaround for segv on
-	  Intel Solaris compiled with Oracle SolarisStudio 12.3.
-	  Partly revert r38174. [ruby-core:52042] [Bug #7805]
-
-Fri Apr 12 04:12:42 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_conv_enc_opts): convert with one converter, instead
-	  of re-creating converters for each buffer expansion.
+	* lib/erb.rb: Allow explicit trimming carriage return when trim_mode is
+	  "-", for Windows environments. [Bug #5339]
 
-Fri Apr 12 03:48:25 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/erb.rb: Allow trimming CR in all trim_modes to unify a behavior
+	  with r58823 and r58825.
 
-	* lib/mkmf.rb (find_library): fix to format message.
-	  [ruby-core:53568] [Bug #8130]
+Fri Jun 30 20:16:15 2017  Takashi Kokubun  <takashikkbn@gmail.com>
 
-Fri Apr 12 03:44:45 2013  Narihiro Nakamura  <authornari@gmail.com>
+	* lib/erb.rb: Allow trimming carriage return when trim_mode is "<>", for
+	  Windows environments. [Bug #11464]
 
-	* proc.c (bm_free): need to clean up the mark flag of a free and
-	  unlinked method entry. [Bug #8100] [ruby-core:53439]
+Fri Jun 30 20:07:37 2017  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Fri Apr 12 02:27:42 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+	* util.c (ruby_strtod) Merge latest dtoa.c [Bug #13545]
+	  Apply some part of http://www.netlib.org/fp/dtoa.c with my eyes...
 
-	* addr2line.c: use more generic type:
-	  * u_char -> unsigned char
-	  * u_short -> unsigned short
-	  * u_int -> unsigned int
-	  * u_long -> unsigned long
-	  * quad_t -> int64_t
-	  * u_quad_t -> uint64_t
+Fri Jun 30 20:00:18 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* addr2line.c (imax): inline is defined by configure.
+	* dir.c (is_case_sensitive): use getattrlist() if fgetattrlist() is
+	  unavailable, on OSX 10.5. [Bug #11054]
 
-Fri Apr 12 02:27:42 2013  Naohisa Goto  <ngotogenome@gmail.com>
+Fri Jun 30 19:58:16 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* addr2line.c: quad_t and u_quad_t is not available on Solaris.
-	  __inline is not available with old compilers on Solaris.
-	  [ruby-dev:47229] [Bug #8227]
+	* tool/mkconfig.rb (RbConfig): prefix SDKROOT to oldincludedir
+	  not includedir, the latter is outside the ruby installation.
+	  [ruby-core:72496] [Bug #11881]
 
-Fri Apr 12 02:27:42 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Fri Jun 30 19:56:06 2017  Eric Wong  <e@80x24.org>
 
-	* addr2line.c (putce): suppress unused return value warning.
+	* variable.c (check_autoload_required): do not assume a provided feature
+	  means autoload is complete, always wait if autoload is being performed
+	  by another thread. [Bug #11384] Thanks to s.wanabe@gmail.com
 
-Fri Apr 12 02:27:42 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+Fri Jun 30 19:53:30 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* addr2line.c (kprintf): added from FreeBSD libstand's printf.
-	  this is consided as async signal safe function.
+	* process.c (obj2uid, obj2gid): use temporary string as the buffer
+	  instead of rb_alloc_tmp_buffer, which is NODE_ALLOCA since r51492.
+	  [Bug #13554]
 
-	* addr2line.c (rb_dump_backtrace_with_lines): use kfprintf.
-	  [Bug #8144] [ruby-core:53632]
+Fri Jun 30 19:50:25 2017  Eric Wong  <e@80x24.org>
 
-Fri Apr 12 02:27:42 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+	* variable.c (autoload_reset): use idempotent list_del_init
 
-	* addr2line.c (rb_dump_backtrace_with_lines): output line at once.
+	* variable.c (autoload_sleep): moved code from rb_autoload_load
 
-Fri Apr 12 02:10:09 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* variable.c (autoload_sleep_done): cleanup for use with rb_ensure
 
-	* vm_method.c (rb_export_method): directly override the flag of method
-	  defined in prepending class too, not adding zsuper entry.
-	  [ruby-core:53106] [Bug #8005]
+	* variable.c (rb_autoload_load): ensure list delete happens in case the
+	  thread dies during sleep
 
-Fri Apr 12 01:57:52 2013  Eric Hodel  <drbrain@segment7.net>
+	* test/ruby/bug-13526.rb: new script for separate execution
 
-	* lib/fileutils.rb:  Revert r34669 which altered the way
-	  metaprogramming in FileUtils occurred.  [ruby-trunk - Bug #7958]
+	* test/ruby/test_autoload.rb (test_bug_13526): new test [Bug #13526]
 
-	* test/fileutils/visibility_tests.rb:  Refactored tests of FileUtils
-	  options modules to expose bug found in #7958
-	* test/fileutils/test_dryrun.rb:  ditto.
-	* test/fileutils/test_nowrite.rb:  ditto.
-	* test/fileutils/test_verbose.rb:  ditto.
+Fri Jun 30 19:46:46 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Apr 12 01:28:46 2013  Luis Lavena  <luislavena@gmail.com>
+	* sprintf.c (rb_str_format): while "% 2f" and "% 4f" result in " Inf"
+	  and " Inf" respectively, "% 3f" results in "Inf" (no space).
 
-	* win32/file.c (get_user_from_path):  add internal function that retrieves
-	  username from supplied path (refactored).
-	* win32/file.c (rb_file_expand_path_internal):  refactor expansion of user
-	  home to use get_user_from_path and cover dir_string corner cases.
-	  [ruby-core:53168] [Bug #8034]
+	* sprintf.c (rb_str_format): as for non-finite float, calculate the
+	  exact needed size with the space flag.
 
-Fri Apr 12 01:28:46 2013  Luis Lavena  <luislavena@gmail.com>
+Fri Jun 30 19:41:48 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* win32/file.c (rb_file_expand_path_internal):  Expand home directory when
-	  used as second parameter (dir_string).  [ruby-core:53168] [Bug #8034]
-	* test/ruby/test_file_exhaustive.rb: add test to verify.
+	* thread_win32.c (w32_wait_events): do not acquire GVL, to fix deadlock
+	  at read/close race condition. instead, just ignore interrupt_event if
+	  it is closed.
 
-Mon Apr  8 00:10:59 2013  Narihiro Nakamura  <authornari@gmail.com>
+	* thread_win32.c (w32_wait_events): fix wait object index in the case of
+	  interrupt_event is not usable.
 
-	* gc.c: Fix unlimited memory growth with large values of
-	  RUBY_FREE_MIN. patched by tmm1(Aman Gupta).
-	  [Bug #8095] [ruby-core:53405]
+Fri Jun 30 19:37:47 2017  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-Sun Apr  7 22:27:12 2013  Narihiro Nakamura  <authornari@gmail.com>
+	* io.c (nogvl_wait_for_single_fd): nogvl_wait_for_single_fd must wait
+	  as its name.
+	  poll(fds, n, 0) mean no timeout and immediately return. If you want to
+	  wait something, you need to use -1 instead.
 
-	* gc.c: Avoid unnecessary heap growth. patched by tmm1(Aman Gupta).
-	  [Bug #8093] [ruby-core:53393]
+Fri Jun 30 19:35:31 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Apr  7 03:01:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* class.c (Init_class_hierarchy): prevent rb_cObject which is the class
+	  tree root, from GC. [Bug #12492]
 
-	* parse.y (simple_re_meta): escape all closing characters, not only
-	  round parenthesis.  [ruby-core:53578] [Bug #8133]
+Fri Jun 30 19:32:52 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Apr  7 02:54:40 2013  Narihiro Nakamura  <authornari@gmail.com>
+	* class.c (Init_class_hierarchy): prevent rb_cObject which is the
+	  class tree root, from GC.  [ruby-dev:49666] [Bug #12492]
 
-	* gc.c: Improve accuracy of objspace_live_num() and
-	  allocated/freed counters. patched by tmm1(Aman Gupta).
-	  [Bug #8092] [ruby-core:53392]
+Fri Jun 30 19:29:45 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Apr  5 00:54:08 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+	* ext/ripper/lib/ripper/lexer.rb (on_heredoc_dedent): fix for nested
+	  indedented here documents, where Elems are nested too. [Bug #13536]
 
-	* ext/openssl/ossl_bn.c (ossl_bn_initialize): fix can't create from bn.
+	* ext/ripper/lib/ripper/lexer.rb (on_heredoc_dedent): insert stripped
+	  leading spaces as on_ignored_sp elements, so that the original source
+	  can be reconsructed. [Bug #13536]
 
-Thu Apr  4 02:27:12 2013  Tanaka Akira  <akr@fsij.org>
+Mon May  1 06:36:57 2017  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* lib/resolv-replace.rb (TCPSocket#initialize): resolve the 3rd
-	  argument only if non-nil value is given.
-	  [ruby-dev:47150] [ruby-trunk - Bug #8054] reported and analyzed by
-	  mrkn.
+	* parse.y (parser_parse_string): set the mark of term to `nd_func`
+	  because in this version `u2.id` is not used for this purpose.
+	  fixed failure of ruby/spec introduced at r58518.
+	  see also [Backport #13363]
 
-Thu Apr  4 02:24:59 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+Sun Apr 30 23:01:00 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* Merge Onigmo d4bad41e16e3eccd97ccce6f1f96712e557c4518.
-	  fix lookbehind assertion fails with /m mode enabled. [Bug #8023]
-	  fix \Z matches where it shouldn't. [Bug #8001]
+	class.c: ensure_includable
 
-Thu Apr  4 02:11:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* class.c (ensure_includable): extract checks to include and
+	  prepend.
 
-	* marshal.c (w_extended): check for prepended object.
-	  [ruby-core:53206] [Bug #8043]
+	class.c: prohibit refinement module
 
-Wed Mar 27 03:02:30 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+	* class.c (ensure_includable): cannot include refinement
+	  module, or the type and the class do not match.
+	  [ruby-core:79632] [Bug #13236]
 
-	* vm_exec.c: Correct predefined macro name. This typo is introduced by
-	  r36534 and should be backported to ruby_2_0_0.
+Sun Apr 30 22:55:41 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Mar 27 02:58:44 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+	keep line number after unterminated string literal
 
-	* Merge Onigmo 0fe387da2fee089254f6b04990541c731a26757f
-	  v5.13.3 [Bug#7972] [Bug#7974]
+	* parse.y (parser_parse_string): keep line number even after an
+	  unterminated string literal.  it does not matter in the parser,
+	  ripper needs this value after this error.
 
-Wed Mar 27 02:53:53 2013  Kouhei Sutou  <kou@cozmixng.org>
+	parse.y: unterminated content token
 
-	* lib/rexml/document.rb: move entity_expansion_text_limit accessor to ...
-	* lib/rexml/rexml.rb: ... here to make rexml/text independent from
-	  REXML::Document. It causes circular require.
-	* lib/rexml/document.rb (REXML::Document.entity_expansion_text_limit):
-	  deprecated.
-	* lib/rexml/document.rb (REXML::Document.entity_expansion_text_limit=):
-	  deprecated.
-	* lib/rexml/text.rb: add missing require "rexml/rexml" for
-	  REXML.entity_expansion_text_limit.
-	  Reported by Robert Ulejczyk. Thanks!!! [ruby-core:52895] [Bug #7961]
+	* parse.y (parser_parse_string): defer the end token to next
+	  reading, to yield tSTRING_CONTENT with the unterminated content.
+	  [Bug #13363]
 
-Wed Mar 27 02:50:45 2013  Shugo Maeda  <shugo@ruby-lang.org>
+Sun Apr 30 22:52:38 2017  Marcus Stollsteimer  <sto.mar@web.de>
 
-	* object.c (Init_Object): remove Module#used, which has been
-	  introduced in Ruby 2.0 by mistake.  [Bug #7916] [ruby-core:52719]
+	* io.c: [DOC] expand docs for IO#puts
+	  [Bug #13306]
 
-Mon Mar 25 02:02:15 2013  Tadayoshi Funaba  <tadf@dotrb.org>
+Sun Apr 30 22:38:44 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* complex.c: edited rdoc.
-	* rational.c: ditto.
+	sample/pty/shl.rb: update [ci skip]
 
-Mon Mar 25 02:02:15 2013  Tadayoshi Funaba  <tadf@dotrb.org>
+	* sample/pty/shl.rb: stop writer loop when the child exited.
+	  PTY::ChildExited no longer raises asynchronously since r20298.
+	  [ruby-dev:49974] [Bug #13191]
 
-	* complex.c: described syntax of string form.
-	* rational.c: ditto.
+	* sample/pty/shl.rb: use io/console instead of stty.
+	  [ruby-dev:49974] [Bug #13191]
 
-Mon Mar 25 01:26:26 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* sample/pty/shl.rb: do not manage array length separately.
+	  [ruby-dev:49974] [Bug #13191]
 
-	* lib/webrick/httpproxy.rb: Fix typos in HTTPProxyServer [Bug #8013]
-	  Patch by Nobuhiro IMAI [ruby-core:53127]
+	* sample/pty/shl.rb: leap exited child process.
+	  [ruby-dev:49974] [Bug #13191]
 
-Mon Mar 25 01:09:48 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Apr 30 22:35:10 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* compile.c (iseq_compile_each): pass keyword arguments to zsuper,
-	  with current values.  [ruby-core:53114] [Bug #8008]
+	configure.in: use AC_SEARCH_LIBS
 
-Mon Mar 25 01:05:15 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* configure.in (--with-gmp, --with-jemalloc): use AC_SEARCH_LIBS
+	  to check if no library is required, instead of AC_CHECK_LIB.
+	  [ruby-core:79368] [Bug #13175]
 
-	* ext/objspace/objspace.c (count_nodes): count also newly added nodes,
-	  and fix key for unknown node.  patch by tmm1 (Aman Gupta) in
-	  [ruby-core:53130] [Bug #8014]
+Sun Apr 30 22:24:25 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Mar 25 01:00:03 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* numeric.c (flo_round): [EXPERIMENTAL] adjust the case that the
+	  receiver is close to the exact but unrepresentable middle value
+	  of two values in the given precision.
+	  http://d.hatena.ne.jp/hnw/20160702
 
-	* class.c (rb_prepend_module): check redefinition of built-in optimized
-	  methods.  [ruby-dev:47124] [Bug #7983]
+Sun Apr  9 22:21:23 2017  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* vm.c (rb_vm_check_redefinition_by_prepend): ditto.
+	thread.c: rb_thread_fd_close [ci skip]
 
-Mon Mar 25 00:51:57 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* thread.c (rb_thread_fd_close): re-define because of a couple of
+	  external libraries used it.
 
-	* Makefile.in (miniruby, ruby): move MAINLIBC because linker arguments
-	  must appear after object files with newer versions of gcc.  patch by
-	  tmm1 (Aman Gupta) in [ruby-core:53121] [Bug #8009]
+Wed Mar 29 23:47:31 2017  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-Mon Mar 25 00:47:04 2013  Koichi Sasada  <ko1@atdot.net>
+	* hash.c (any_hash): fix CI failure on L32LLP64 architecture.
+	  The patch was provided by usa. [ruby-core:80484] [Bug #13376]
 
-	* iseq.c (iseq_data_to_ary): fix condition.
-	  r34303 introduces a bug to avoid all line information from
-	  a result of ISeq#to_a. This is a regression problem from 2.0.0p0.
+Wed Mar 29 06:22:27 2017  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-	* test/ruby/test_iseq.rb: add a test of lines after ISeq#to_a.
+	* hash.c (any_hash): fix Symbol#hash to be nondeterministic.
+	  The patch was provided by Eric Wong. [ruby-core:80433] [Bug #13376]
 
-Mon Mar 25 00:41:23 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/test_symbol.rb: add test for above.
 
-	* tool/mkconfig.rb: reconstruct comma separated list values.  a
-	  command line to Windows batch file is split not only by spaces
-	  and equal signs but also by commas and semicolons.
+Tue Mar 28 00:38:39 2017  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Wed Mar 20 23:21:14 2013  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+	* win32/win32.c (poll_child_status): rb_w32_wait_events_blocking() sets
+	  errno internally, then should not set it here.
 
-	* test/rubygems/test_gem_installer.rb (test_install_extension_flat):
-	  use ruby in build directory in case ruby is not installed.
-	  [ruby-core:53265] [Bug #8058]
+Mon Mar 27 20:15:17 2017  Kazuki Tsujimoto  <kazuki@callcc.net>
 
-Wed Mar 20 23:17:33 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* eval.c, method.h, proc.c, vm.c, vm_eval.c, vm_insnhelper.c, vm_method.c:
+	  TracePoint#method_id should return method_id, not callee_id.
+	  [ruby-core:77241] [Feature #12747]
 
-	* test/win32ole/test_err_in_callback.rb (TestErrInCallBack#setup):
-	  allow using different root for source and build directories.
-	  this may fixes a minor problem of r39834.
+	* test/ruby/test_settracefunc.rb: change accordingly.
 
-Wed Mar 20 23:17:33 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+Mon Mar 27 20:12:23 2017  Anton Davydov  <mail@davydovanton.com>
 
-	* test/win32ole/test_err_in_callback.rb (TestErrInCallBack#setup): use
-	  relative path to get rid of "too long commandline" error.
+	* lib/uri/mailto.rb: Removed needless `return` and use `.`` instead of `::`
+	  with class method.
+	* test/uri/test_mailto.rb: Added tests for coverage.
 
-Wed Mar 20 23:17:33 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+Mon Mar 20 06:35:08 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/win32ole/test_err_in_callback.rb
-	  (TestErrInCallBack#test_err_in_callback): shouldn't create a file in
-	  the top of build directory.
+	* ruby.c (process_options): convert -e script to the encoding
+	  given by a command line option on Windows.  assume it is the
+	  expected encoding.  [ruby-dev:49461] [Bug #11900]
 
-Wed Mar 20 23:08:40 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Mon Mar 20 05:47:49 2017  Koichi Sasada  <ko1@atdot.net>
 
-	* include/ruby/missing.h: removed __linux__. it's unnecessary.
+	* test/ruby/test_exception.rb: fix thread issues.
+	  * use Queue instead of a local variable for synchronization.
+	  * join created thread to soleve leaking threads warning.
 
-Wed Mar 20 23:03:27 2013  Tanaka Akira  <akr@fsij.org>
+Mon Mar 20 05:47:49 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* configure.in: move OS specific header/function knowledge before
-	  automatic header tests.
+	* thread.c (rb_threadptr_raise): set cause from the called thread,
+	  but not from the thread to be interrupted.
+	  [ruby-core:77222] [Bug #12741]
 
-Wed Mar 20 23:01:42 2013  Tanaka Akira  <akr@fsij.org>
+Wed Feb  8 02:17:02 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* configure.in: move header files check to the beginning of
-	  "header and library section".
-	  test rlim_t with sys/types.h and sys/time.h for MirOS BSD.
-	  sys/types.h and sys/time.h is gurded by #ifdef and the above move
-	  is required for this change.
+	* lib/forwardable.rb (Forwardable._delegator_method): extract
+	  method generator and deal with non-module objects.
+	  [ruby-dev:49656] [Bug #12478]
 
-Wed Mar 20 22:57:27 2013  Tanaka Akira  <akr@fsij.org>
+Wed Feb  8 02:17:02 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* configure.in: move the test for -march=i486 just after
-	  RUBY_UNIVERSAL_ARCH/RUBY_DEFAULT_ARCH.
+	* lib/forwardable.rb (def_instance_delegator): adjust backtrace of
+	  method body by tail call optimization.  adjusting the delegated
+	  target is still done by deleting backtrace.
 
-Wed Mar 20 22:56:07 2013  Tanaka Akira  <akr@fsij.org>
+	* lib/forwardable.rb (def_single_delegator): ditto.
 
-	* configure.in: change CFLAGS temporally to test
-	  ARCH_FLAG="-march=i486".
+Tue Jan 17 03:51:48 2017  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Mar 20 22:54:33 2013  Tanaka Akira  <akr@fsij.org>
+	* compile.c (setup_args): duplicate splatting array if more
+	  arguments present to obey left-to-right execution order.
+	  [ruby-core:77701] [Bug# 12860]
 
-	* configure.in: don't define ARCH_FLAG="-march=i486" if it causes
-	  compilation problem.
+Thu Nov 24 05:47:18 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-Wed Mar 20 22:36:41 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* test/fileutils/test_fileutils.rb (TestFileUtils#setup): Use primary
+	  group as well as supplementary groups.
+	  based on the patch by Vit Ondruch at [Bug #12910]
 
-	* thread.c: disabled _FORTIFY_SOURCE for avoid to hit glibc bug.
-	  [Bug #8080] [ruby-core:53349]
-	* test/ruby/test_io.rb (TestIO#test_io_select_with_many_files):
-	  test for the above.
+Thu Nov 24 05:44:04 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-Wed Mar 20 22:34:52 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* test/ruby/test_dir_m17n.rb: Don't encode to UTF-8 if it's unnecessary.
+	  If the file system encoding is ISO-8851-1 or if the encoding of the
+	  target string is invalid, don't encode to UTF-8. [Bug#12972]
 
-	* include/ruby/missing.h (__syscall): moved to...
-	* io.c: here. because __syscall() is only used from io.c.
+Mon Nov 21 16:55:15 2016  boshan  <boshan@subsplash.com>
 
-	* include/ruby/missing.h: move "#include <sys/type.h>" to ....
-	* include/ruby/intern.h: here. because it was introduced for
-	  fixing NFDBITS issue. [ruby-core:05179].
+	* lib/tempfile.rb (Tempfile#initialize): [DOC] the first parameter
+	  `basename` is optional and defaulted to an empty string since
+	  [GH-523].  [Fix GH-1225]
 
-Wed Mar 20 22:33:26 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Sat Nov 19 14:06:07 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-	* include/ruby/missing.h (struct timespec): include <sys/time.h>
+	* iseq.c (proc_dup): don't duplicate sym_procs.  [Fix GH-1479]
+	  [ruby-core:78100] [Bug #12927]
+	  Based on the patch provided by Emiliano Ritiro.
 
-Wed Mar 20 22:33:26 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Sat Nov 19 11:48:47 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* configure.in: check struct timeval exist or not.
-	* include/ruby/missing.h (struct timeval): check HAVE_STRUCT_TIMEVAL
-	  properly. and don't include sys/time.h if struct timeval exist.
+	* iseq.c (iseqw_s_compile_file): deal with syntax error as well as
+	  compile, and should not abort when rescued.
 
-	* file.c: include sys/time.h explicitly.
-	* random.c: ditto.
-	* thread_pthread.c: ditto.
-	* time.c: ditto.
-	* ext/date/date_strftime.c: ditto.
-
-Mon Mar 18 00:12:28 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/commands/setup_command.rb:  Don't delete non-rubygems
-	  files when installing RubyGems.
-	* test/rubygems/test_gem_commands_setup_command.rb:  Test for the
-	  above.
-
-	* lib/rubygems/ext/ext_conf_builder.rb:  Use full path to siteconf.rb
-	  in case the extconf.rb changes directories (like memcached does).
-
-	* lib/rubygems/package.rb:  Remove double slash from path.
-	* test/rubygems/test_gem_package.rb:  Test for the above.
-	* test/rubygems/test_gem_package_old.rb:  ditto.
-
-	* lib/rubygems/source.rb:  Revert automatic HTTPS upgrade
-	* lib/rubygems/spec_fetcher.rb:  ditto.
-	* test/rubygems/test_gem_remote_fetcher.rb:  ditto.
-	* test/rubygems/test_gem_source.rb:  ditto.
-	* test/rubygems/test_gem_spec_fetcher.rb:  ditto.
-
-Mon Mar 18 00:11:33 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/rubygems/ext/ext_conf_builder.rb (Gem::Ext::ExtConfBuilder.build):
-	  it is impossible to predict which file will be installed to where,
-	  by the arguments, so use intermediate destination directory always.
-	  [Bug #7698]
-
-Mon Mar 18 00:11:33 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/rubygems/ext/ext_conf_builder.rb (Gem::Ext::ExtConfBuilder.build):
-	  it is impossible to predict which file will be installed to where,
-	  by the arguments, so use intermediate destination directory always.
-	  [Bug #7698]
-
-Mon Mar 18 00:05:50 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/commands/setup_command.rb:  Install .pem files.
-	* test/rubygems/test_gem_commands_setup_command.rb:  Test for the
-	  above.
-
-	* lib/rubygems/spec_fetcher.rb:  Test HTTPS upgrade with URI::HTTPS,
-	  not URI::HTTP.  Fixes bug in automatic HTTPS upgrade.
-	* test/rubygems/test_gem_spec_fetcher.rb:  Test for the above.
-
-	* lib/rubygems.rb:  Version 2.0.2
-
-	* lib/rubygems/test_utilities.rb:  Ensure scheme and uri class match.
-
-Mon Mar 18 00:03:27 2013  Eric Hodel  <drbrain@segment7.net>
+Wed Nov 16 23:40:29 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-	* test/rubygems/test_require.rb:  Fix tests when 'a.rb' exists.
-	  [ruby-trunk - Bug #7749]
+	* vm_eval.c (vm_call0_body): refined module should not be skipped as
+	  prepended. [Bug #12920]
 
-Mon Mar 18 00:02:27 2013  Eric Hodel  <drbrain@segment7.net>
+Tue Nov 15 03:14:02 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/rubygems.rb:  Allow specification of directory permissions.
-	  [ruby-trunk - Bug #7713]
-	* test/rubygems/test_gem.rb:  Test for the above.
+	* ext/-test/file/fs.c (get_atime_p): Updating of file access times
+	  is enabled or not.
 
-Mon Mar 18 00:00:32 2013  Eric Hodel  <drbrain@segment7.net>
+Tue Nov 15 03:14:02 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/rubygems/test_gem_spec_fetcher.rb:  Removed unused variable.
+	* test/ruby/test_file.rb (TestFile#test_stat): fix noatime case.
+	  [ruby-core:77943] [Bug #12903]
 
-Mon Mar 18 00:00:32 2013  Eric Hodel  <drbrain@segment7.net>
+Tue Nov 15 03:09:39 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* lib/rubygems/commands/query_command.rb:  Only fetch remote specs when
-	  showing details.  [ruby-trunk - Bug #8019]  RubyGems bug #487
-	* lib/rubygems/remote_fetcher.rb:  ditto.
-	* lib/rubygems/security/policy.rb:  ditto.
-	* test/rubygems/test_gem_commands_query_command.rb:  Test for the
-	  above.
+	* test/rinda/test_rinda.rb (test_make_socket_ipv6_multicast,
+	  test_make_socket_ipv6_multicast_hops): skip if IPv6 multicast 
+	  address is not available.
 
-	* lib/rubygems/security.rb:  Make OpenSSL optional for RubyGems.
-	* lib/rubygems/commands/cert_command.rb:  ditto.
+Tue Nov 15 02:49:30 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rubygems/config_file.rb:  Display file with YAML error, not
-	  ~/.gemrc
+	* vm_eval.c (vm_call0_body): follow the original class, not to
+	  loop the prepended module.  [ruby-core:77784] [Bug #12876]
 
-	* lib/rubygems/remote_fetcher.rb:  Only create gem subdirectories when
-	  installing gems.
-	* lib/rubygems/dependency_resolver.rb:  ditto.
-	* lib/rubygems/test_utilities.rb:  ditto.
-	* test/rubygems/test_gem_commands_fetch_command.rb:  Test for the
-	  above.
+Tue Nov 15 02:45:44 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/rubygems/spec_fetcher.rb:  Only try to upgrade
-	  http://rubygems.org to HTTPS
-	* test/rubygems/test_gem_spec_fetcher.rb:  Test for the above.
+	* lib/net/http.rb (transport_request): other than HTTPContinue
+	  in 1xx (HTTPInformation) also needs to continue. [Bug #12890]
 
-	* lib/rubygems.rb:  Update win_platform? check for JRuby compatibility.
+Sat Nov 12 01:05:45 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* test/rubygems/test_gem_installer.rb:  Update for Ruby 1.9.2
-	  compatibility
+	* object.c: Improve documentation for Float conversion.
+	  [ruby-core:71661][Bug #11736][ci skip]
 
-Sun Mar 17 23:53:19 2013  Eric Hodel  <drbrain@segment7.net>
+Sat Nov 12 00:50:35 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rubygems.rb:  Bump version to 2.0.1 for upcoming bugfix release
+	* proc.c (mnew_internal): follow the original class, not to loop
+	  the prepended module.  [ruby-core:77591] [Bug #12832]
 
-	* lib/rubygems/ext/ext_conf_builder.rb:  Restore ruby 1.8 compatibility
-	  for [Bug #7698]
-	* test/rubygems/test_gem_installer.rb:  Ditto.
+Sat Nov 12 00:46:50 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* lib/rubygems/package.rb:  Restore ruby 1.8 compatibility.
+	* cont.c (cont_new): disable optimization if clang's version is
+	  3.8.0.  [ruby-core:77894] [Bug #12893]
 
-	* test/rubygems/test_gem_dependency_installer.rb:  Fix warnings
+Sat Nov 12 00:27:24 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Mar 17 23:36:05 2013  Eric Hodel  <drbrain@segment7.net>
+	* compile.c (iseq_peephole_optimize): enable tail call
+	  optimization inside a conditional block.
 
-	* lib/rubygems/available_set.rb:  Undent for style
+Sat Nov  5 11:53:17 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rubygems/dependency_installer.rb:  Pick latest prerelease gem to
-	  install.  Fixes RubyGems bug #468.
-	* test/rubygems/test_gem_dependency_installer.rb:  Test for the above.
+	* io.c (copy_stream_body): use IO to write to copy to duplex IO.
+	  http://twitter.com/knu/status/786505317974585344
 
-	* lib/rubygems/dependency_installer.rb:  Don't display "Done installing
-	  documentation" if documentation will not be installed.
-	* lib/rubygems/rdoc.rb:  ditto
+Sat Nov  5 11:49:41 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rubygems/dependency_list.rb:  Use Array#concat for Ruby 1.x
-	  performance.
+	* sprintf.c (rb_str_format): format exact number more exactly.
 
-	* lib/rubygems/installer.rb:  Use formatted program name when comparing
-	  executables.  RubyGems pull request #471
-	* test/rubygems/test_gem_installer.rb:  Test for the above.
+Sat Nov  5 11:45:32 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* lib/rubygems/package.rb:  Use more explicit feature check to work
-	  around JRuby bug #552
+	* ext/openssl/ossl.c (Init_openssl): register an ex_data index for
+	  X509_STORE and X509_STORE_CTX respectively. Since they don't share
+	  the ex_data index registry, we can't use the same index.
+	  (ossl_verify_cb): use the the correct index.
 
-	* lib/rubygems/ssl_certs/GeoTrust_Global_CA.pem:  Added GeoTrust root
-	  certificate.
+	* ext/openssl/ossl_ssl.c (ossl_ssl_verify_callback): ditto.
 
-	* test/rubygems/test_gem_source_list.rb:  Use "example" instead of real
-	  hostname
+	* ext/openssl/ossl_x509store.c (ossl_x509store_set_vfy_cb): ditto.
+	  (ossl_x509stctx_verify): ditto.
 
-Sun Mar 17 23:28:44 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/ossl.h (void ossl_clear_error): add extern declarations
+	  of ossl_store_{ctx_,}ex_verify_cb_idx.
 
-	* lib/rubygems/ext/ext_conf_builder.rb (Gem::Ext::ExtConfBuilder.build):
-	  clear DESTDIR so RUBYARCHDIR and RUBYLIBDIR are not be overrdden.
-	  [Bug #7698]
+	* ext/openssl/openssl_missing.c: remove X509_STORE_set_ex_data and
+	  X509_STORE_get_ex_data.
 
-Sun Mar 17 23:26:31 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/openssl_missing.h: implement X509_STORE_get_ex_data,
+	  X509_STORE_set_ex_data and X509_STORE_get_ex_new_index as macros.
 
-	* lib/rubygems/ext/ext_conf_builder.rb (Gem::Ext::ExtConfBuilder.build):
-	  fix for unusal cases again.  install to a temporary directory once
-	  and move instaled files to the destination directory, if it is same
-	  as the current directory.  [Bug #7698]
+Sat Nov  5 11:35:58 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Mar 17 23:22:22 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* thread.c (rb_thread_pending_interrupt_p): no pending interrupt
+	  before initialization.
 
-	* lib/rubygems/ext/ext_conf_builder.rb
-	  (Gem::Ext::ExtConfBuilder.hack_for_obsolete_style_gems): remove
-	  circular dependencies in install-so too.  [ruby-core:52882]
-	  [Bug #7698]
+	* thread.c (thread_raise_m, rb_thread_kill): uninitialized thread
+	  cannot interrupt.  [ruby-core:72732] [Bug #11959]
 
-Sun Mar 17 23:19:34 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Nov  5 11:16:58 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* lib/rubygems/ext/ext_conf_builder.rb (Gem::Ext::ExtConfBuilder.build):
-	  revert use of temporary directory for build, to work some buggy
-	  extconf.rb which cannot build outside the source directory.
-	  [ruby-core:53056] [Bug #7698]
+	* ext/bigdecimal/bigdecimal.c: Import changes from ruby/bigdecimal
+	  repository.
 
-Sun Mar 17 23:11:35 2013  Eric Hodel  <drbrain@segment7.net>
+Tue Oct 18 02:58:22 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* lib/rubygems/ext/builder.rb:  Fix incompatibilities when installing
-	  extensions.  Patch by Nobu.
-	  [ruby-trunk - Bug #7698] [ruby-trunk - Bug #7971]
-	* lib/rubygems/ext/ext_conf_builder.rb:  ditto.
-	* lib/rubygems/installer.rb:  ditto.
-	* test/rubygems/test_gem_ext_ext_conf_builder.rb:  Test for the above.
-	* test/rubygems/test_gem_installer.rb:  ditto.
+	* eval_intern.h (TH_PUSH_TAG): Initialize struct rb_vm_tag::tag with
+	  Qundef rather than 0 which is equal to Qfalse. Since Kernel#throw(obj)
+	  searches a tag with rb_vm_tag::tag == obj, throw(false) can
+	  accidentally find an unrelated tag which is not created by
+	  Kernel#catch.  [ruby-core:77229] [Bug #12743]
 
-	* lib/rubygems/commands/sources_command.rb:  Prefer HTTPS over HTTP.
-	* lib/rubygems/defaults.rb:  ditto
-	* lib/rubygems/dependency_resolver.rb:  Ditto.
-	* lib/rubygems/source.rb:  ditto.
-	* lib/rubygems/spec_fetcher.rb:  ditto.
-	* lib/rubygems/specification.rb:  ditto.
-	* lib/rubygems/test_utilities.rb:  ditto.
-	* test/rubygems/test_gem.rb:  Test for the above.
-	* test/rubygems/test_gem_commands_sources_command.rb:  ditto.
-	* test/rubygems/test_gem_dependency_resolver_api_set.rb:  ditto.
-	* test/rubygems/test_gem_remote_fetcher.rb:  ditto.
-	* test/rubygems/test_gem_source.rb:  ditto.
-	* test/rubygems/test_gem_spec_fetcher.rb:  ditto.
+	* test/ruby/test_exception.rb (test_throw_false): Add a test case for
+	  this.
 
-Tue Mar 12 00:56:19 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Tue Oct 18 02:24:29 2016  Aurelien Jacobs  <aurel@gnuage.org>
 
-	* test/thread/test_queue.rb (TestQueue#test_thr_kill): reduce
-	  iterations from 2000 to 250. When running on uniprocessor
-	  systems, every th.kill needs TIME_QUANTUM_USEC time (i.e.
-	  100msec on posix systems). Because, "r.read 1" is 3 steps
-	  operations that 1) release GVL 2) read 3) acquire gvl and
-	  (1) invoke context switch to main thread. and then, main
-	  thread's th.kill resume (1), but not (2). Thus read interrupt
-	  need TIME_QUANTUM_USEC. Then maximum iteration is 30sec/100msec
-	  = 300.
+	* lib/logger.rb (Logger::Period#next_rotate_time): fix monthly log
+	  rotate when DST is applied during a month of 31 days.
+	  [Fix GH-1458]
 
-Tue Mar 12 00:53:34 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Wed Oct 12 22:31:09 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* process.c (setup_communication_pipe): remove unused function.
-	  it was unintentionally added r39683.
+	* tool/downloader.rb: Removed verification of gem certification.
+	  Because signed gem is not working on rubygems ecosystem.
+	* tool/gem-unpack.rb: ditto.
 
-Tue Mar 12 00:53:34 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Fri Oct  7 02:48:06 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-	* thread_pthread.c (ARRAY_SIZE): new.
-	* thread_pthread.c (gvl_acquire_common): use low priority
-	  notification for avoiding timer thread interval confusion.
-	  If we use timer_thread_pipe[1], every gvl_yield() request
-	  one more gvl_yield(). It lead to thread starvation.
-	  [Bug #7999] [ruby-core:53095]
-	* thread_pthread.c (rb_reserved_fd_p): adds timer_thread_pipe_low
-	  to reserved fds.
+	* lib/rubygems/ssl_certs/GlobalSignRootCA.pem: add for RugyGems.org.
 
-Tue Mar 12 00:53:34 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Mon Sep 26 23:51:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* thread_pthread.c (rb_thread_wakeup_timer_thread_fd): add fd
-	  argument and remove hardcoded dependency of timer_thread_pipe[1].
-	* thread_pthread.c (consume_communication_pipe): add fd argument.
-	* thread_pthread.c (close_communication_pipe): ditto.
+	* variable.c (rb_const_search): raise with the actual class/module
+	  name which defines the private constant.
 
-	* thread_pthread.c (timer_thread_sleep): adjust the above changes.
+Mon Sep 26 23:34:09 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* thread_pthread.c (setup_communication_pipe_internal): factor
-	  out pipe initialize logic.
+	* ext/openssl/ossl_pkcs12.c (ossl_pkcs12_initialize): pop errors
+	  leaked by PKCS12_parse(). This is a bug in OpenSSL, which exists
+	  in the versions before the version 1.0.0t, 1.0.1p, 1.0.2d.
 
-Tue Mar 12 00:53:34 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Mon Sep 26 23:10:43 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* thread_pthread.c (rb_thread_create_timer_thread): factor out
-	  creating communication pipe logic into separate function.
-	* thread_pthread.c (setup_communication_pipe): new helper function.
-	* thread_pthread.c (set_nonblock): moves a definition before
-	  setup_communication_pipe.
+	* vm_dump.c (backtrace): use rip in the saved context for the case
+	  the SIGSEGV is received when the process is in userland.
+	  Note that ip in the stack should be used if the signal is received
+	  when it is in kernel (when it is calling syscall) [Bug #12711]
 
-Tue Mar 12 00:53:34 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Mon Sep 26 20:23:32 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-	* thread_pthread.c (consume_communication_pipe): retry when
-	  read returned CCP_READ_BUFF_SIZE.
+	* gems/bundled_gems: update minitest to 5.8.5.
 
-Tue Mar 12 00:53:34 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* tool/downloader.rb: revert workarounds.
 
-	* thread_pthread.c (set_nonblock): new helper function for set
-	  O_NONBLOCK.
-	* thread_pthread.c (rb_thread_create_timer_thread): set O_NONBLOCK
-	  to timer_thread_pipe[0] too.
+	* tool/gem-unpack.rb: ditto.
 
-Tue Mar 12 00:51:23 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Mon Sep 26 07:26:44 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-	* thread_pthread.c (timer_thread_sleep): use poll() instead of
-	  select(). select doesn't work if timer_thread_pipe[0] is
-	  greater than FD_SETSIZE.
-	* thread_pthread.c (USE_SLEEPY_TIMER_THREAD): add a dependency
-	  against poll.
+	* tool/gem-unpack.rb: don't set security policy.
+	  workaround for certificate expiration of minitest-5.8.3.gem.
 
-Tue Mar 12 00:51:23 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Mon Sep 26 06:33:16 2016  Aaron Patterson <tenderlove@ruby-lang.org>
 
-	* thread_pthread.c (USE_SLEEPY_TIMER_THREAD): use more accurate
-	  ifdef condtions.
+	* lib/uri/generic.rb (def check_password): don't include bad password
+	  in URI exception output
 
-Mon Mar 11 01:16:12 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/uri/test_generic.rb (def test_set_component): test for behavior
 
-	* configure.in (unexpand_shvar): get rid of non-portable shell
-	  behavior on OpenBSD, so no extra quotes.  [Bug #7959]
+Mon Sep 26 06:20:58 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-Mon Mar 11 01:12:50 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* tool/downloader.rb: comment out gem package verification.
+	  workaround for certificate expiration of minitest-5.8.3.gem.
 
-	* parse.y (IS_LABEL_POSSIBLE): allow labels for keyword arguments just
-	  after method definition without a parenthesis.  [ruby-core:52820]
-	  [Bug #7942]
+Sun Sep 25 16:37:22 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Mon Mar 11 01:09:23 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* io.c (nogvl_fsync, nogvl_fdatasync): on Windows, just ignore if the
+	  fd is associated to non-disk device.  if call fsync and/or fdatasync
+	  with such fds, it causes Errno::EBADF exception and the behavior is
+	  incompatible with ruby 2.1 and earlier unintentionally introduced.
 
-	* error.c: clarify reason for sleep in SignalException example
+Sun Sep 25 15:09:04 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
 
-Mon Mar 11 01:09:23 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* array.c (flatten): use rb_obj_class instead of rb_class_of
+	  because rb_class_of may return a singleton class.
+	  [ruby-dev:49781] [Bug #12738]
 
-	* error.c: clarify a document of SignalException. Process.kill()
-	  doesn't have any guarantee when signal will be delivered.
-	  [Bug #7951] [ruby-core:52864]
+Sun Sep 25 15:07:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Mar 11 01:04:54 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+	* man/irb.1: remove useless -width option.
+	  [ruby-dev:49767] [Bug #12692]
 
-	* string.c (str_byte_substr): don't set coderange if it's not known.
-	  [Bug #7954] [ruby-dev:47108]
+Tue Aug 30 05:24:33 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Mon Mar 11 00:58:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/ossl_x509ext.c: additional fix memory leak.
+	  [ruby-core:76922] [Bug #12680]
 
-	* common.mk (realclean-local): miniprelude.c is made by srcs, so it
-	  should not removed by distclean but by realclean.  [Bug #6807]
+	* text/openssl/test_x509ext.rb: test for above.
 
-Mon Mar 11 00:54:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Aug 28 00:26:58 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-	* enc/depend (ARFLAGS): VisualC++ linker does not allow spaces between
-	  output option and the output file name.  [Bug #7950]
+	* vm_method.c: revert r55869. it breaks Integer#days with
+	  ActiveSupport-4.1.x. [ruby-core:76949] [Bug #12353]
 
-	* enc/depend (RANLIB): set default command to do nothing, or make the
-	  entire line a label on Windows.
+	* test/ruby/test_marshal.rb: ditto.
 
-Mon Mar 11 00:50:21 2013  Zachary Scott  <zachary@zacharyscott.net>
+Sat Aug 27 03:51:23 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* thread.c: Document Thread::new, clean up ::fork and mention calling
-	  super if subclassing Thread
+	* id_table.c (hash_table_extend): should not shrink the table than
+	  the previous capacity.  [ruby-core:76534] [Bug #12614]
 
-Mon Mar 11 00:47:47 2013  Akinori MUSHA  <knu@iDaemons.org>
+Sat Aug 27 03:37:49 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* configure.in (unexpand_shvar): Use the numeric comparison
-	  operator instead of '==' which is a ksh extention. [Bug #7941]
+	* ext/openssl/ossl_config.c: fix memory leak.
+	  [ruby-core:76922] [Bug #12680]
 
-Sun Mar 10 00:01:07 2013  Tadayoshi Funaba  <tadf@dotrb.org>
+	* ext/openssl/ossl_ocsp.c: ditto.
 
-	* ext/date/date_core.c: [ruby-core:52303]
+	* ext/openssl/ossl_pkcs12.c: ditto.
 
-Sat Mar  9 23:55:42 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/ossl_pkcs7.c: ditto.
 
-	* random.c (rb_random_ulong_limited): limit is inclusive, but generic
-	  rand method should return a number less than it, so increase for the
-	  difference.  [ruby-core:52779] [Bug #7935]
+	* ext/openssl/ossl_pkey_ec.c: ditto.
 
-Sat Mar  9 23:51:58 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/ossl_x509.h: ditto.
 
-	* random.c (rb_random_ulong_limited): fix error message for negative
-	  value.  [ruby-dev:47061] [Bug #7903]
+	* ext/openssl/ossl_x509attr.c: ditto.
 
-Sat Mar  9 23:41:11 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* ext/openssl/ossl_x509crl.c: ditto.
 
-	* thread.c: Document ThreadGroup::Default
+	* ext/openssl/ossl_x509ext.c: ditto.
 
-Sat Mar  9 23:31:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/ossl_x509req.c: ditto.
 
-	* vm_insnhelper.c (vm_call_method): block level control frame does not
-	  have method entry, so obtain the method entry from method top-level
-	  control frame to be compared with refined method entry.
-	  [ruby-core:52750] [Bug #7925]
+	* ext/openssl/ossl_x509revoked.c: ditto.
 
-Sat Mar  9 23:15:06 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Thu Aug 25 00:19:24 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* signal.c (sigsegv): suppress unused result warning. Because
-	  write(2) is marked __warn_unused_result__ on Linux glibc.
+	* lib/rubygems/specification.rb: `coding` is affect only first line except
+	  shebang.
+	* lib/rubygems/package.rb, lib/rubygems/package/*: ditto.
 
-Sat Mar  9 23:08:43 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Aug 25 00:19:24 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* compile.c (iseq_set_arguments): no keyword check if any keyword rest
-	  argument exists, even unnamed.  [ruby-core:52744] [Bug #7922]
+	* lib/rubygems.rb, lib/rubygems/*, test/rubygems/*: Update rubygems-2.5.2.
+	  It supports to enable frozen string literal and add `--norc` option for
+	  disable to `.gemrc` configuration.
+	  See 2.5.2 release notes for other fixes and enhancements.
+	  https://github.com/rubygems/rubygems/blob/a8aa3bac723f045c52471c7b9328310a048561e0/History.txt#L3
 
-Sat Mar  9 22:50:28 2013  Zachary Scott  <zachary@zacharyscott.net>
+Wed Aug 24 23:54:40 2016  Charles Oliver Nutter  <headius@headius.com>
 
-	* array.c: Document #<=> return values and formatting
-	* bignum.c: ditto
-	* file.c: ditto
-	* object.c: ditto
-	* numeric.c: ditto
-	* rational.c: ditto
-	* string.c: ditto
-	* time.c: ditto
+	* test/ruby/test_array.rb: split out the test for no stack error
+	  on large input for test_permutation, test_repeated_permutation,
+	  and test_repeated_combination, and make them all timeout:30.
 
-Sat Mar  9 22:45:01 2013  Zachary Scott  <zachary@zacharyscott.net>
+Tue Aug 23 03:22:34 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* array.c (rb_ary_diff, rb_ary_and, rb_ary_or): Document return order
-	  [RubySpec #7803]
+	* test/fiddle/test_pointer.rb (test_to_str, test_to_s, test_aref_aset):
+	  Attempt to use independent strings for destructive tests that
+	  directly modify values on memory by using Fiddle::Pointer.
+	  [Bug #12537] [ruby-dev:49700]
 
-Sat Mar  9 22:38:26 2013  Zachary Scott  <zachary@zacharyscott.net>
+Tue Aug 23 03:14:22 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* object.c (rb_obj_comp): Documenting Object#<=> return values
-	  Patch by Stefan Rusterholz
+	* string.c (str_buf_cat): Fix capa size for embed string.
+	  Fix bug in r55547. [Bug #12536]
 
-Sat Mar  9 22:35:22 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Aug 23 03:14:22 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* dir.c (file_s_fnmatch, fnmatch_brace): encoding-incompatible pattern
-	  and string do not match, instead of exception.  [ruby-dev:47069]
-	  [Bug #7911]
+	* string.c (rb_str_change_terminator_length): New function to change
+	  termlen and resize heap for the terminator. This is split from
+	  rb_str_fill_terminator (str_fill_term) because filling terminator
+	  and changing terminator length are different things. [Bug #12536]
 
-Sat Mar  9 22:18:43 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+	* internal.h: declaration for rb_str_change_terminator_length.
 
-	* test/test_rbconfig.rb (TestRbConfig): fix r39372.
-	  It must see RbConfig::CONFIG instead of CONFIG.
+	* string.c (str_fill_term): Simplify only to zero-fill the terminator.
+	  For non-shared strings, it assumes that (capa + termlen) bytes of
+	  heap is allocated. This partially reverts r55557.
 
-Sat Mar  9 22:18:43 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* encoding.c (rb_enc_associate_index): rb_str_change_terminator_length
+	  is used, and it should be called whenever the termlen is changed.
 
-	* test/test_rbconfig.rb (TestRbConfig): skip user defined values by
-	  configuration options.  [Bug #7902]
+	* string.c (str_capacity): New static function to return capacity
+	  of a string with the given termlen, because the termlen may
+	  sometimes be different from TERM_LEN(str) especially during
+	  changing termlen or filling terminator with specific termlen.
 
-Sat Mar  9 22:07:53 2013  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+	* string.c (rb_str_capacity): Use str_capacity.
 
-	* lib/rexml/document.rb (REXML::Document.entity_expansion_text_limit):
-	  fix a typo in comment in r39384.
+Tue Aug 23 03:14:22 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-Sat Mar  9 21:52:19 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* string.c: Partially reverts r55547 and r55555.
+	  ChangeLog about the reverted changes are also deleted in this file.
+	  [Bug #12536] [ruby-dev:49699] [ruby-dev:49702]
 
-	* numeric.c: Examples and formatting for Numeric and Float
-	  Based on a patch by Zach Morek and Oren K of newhaven.rb
-	  [Github documenting-ruby/ruby#5]
+Tue Aug 23 03:14:22 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-Sat Mar  9 21:46:41 2013  Eric Hodel  <drbrain@segment7.net>
+	* string.c (str_fill_term): When termlen increases, re-allocation
+	  of memory for termlen should always be needed.
+	  In this fix, if possible, decrease capa instead of realloc.
+	  [Bug #12536] [ruby-dev:49699]
 
-	* doc/globals.rdoc:  Document what setting $DEBUG does.
+Tue Aug 23 03:14:22 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* doc/globals.rdoc:  Added pointer to $-d for full documentation.
+	* string.c: Specify termlen as far as possible.
+	  Additional fix for [Bug #12536] [ruby-dev:49699].
 
-Sat Mar  9 21:45:38 2013  Eric Hodel  <drbrain@segment7.net>
+	* string.c (str_new_static): Specify termlen from the given encoding
+	  when creating a new String object is needed.
 
-	* doc/globals.rdoc:  Document what setting $VERBOSE does.  [Bug #7899]
+	* string.c (rb_tainted_str_new_with_enc): New function to create a
+	  tainted String object with the given encoding. This means that
+	  the termlen is correctly specified. Currently static function.
+	  The function name might be renamed to rb_tainted_enc_str_new
+	  or rb_enc_tainted_str_new.
 
-	* doc/globals.rdoc:  Added pointer to $-w and $-v for full
-	  documentation.
+	* string.c (rb_external_str_new_with_enc): Use encoding by using the
+	  above rb_tainted_str_new_with_enc().
 
-Sat Mar  9 21:29:45 2013  Naohisa Goto  <ngotogenome@gmail.com>
+Tue Aug 23 03:14:22 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* signal.c (ruby_abort): fix typo in r39354 [Bug #5014]
+	* string.c (rb_str_subseq, str_substr): When RSTRING_EMBED_LEN_MAX
+	  is used, TERM_LEN(str) should be considered with it because
+	  embedded strings are also processed by TERM_FILL.
+	  Additional fix for [Bug #12536] [ruby-dev:49699].
 
-Sat Mar  9 21:29:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Aug 23 03:14:22 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* signal.c (check_stack_overflow): extract duplicated code and get rid
-	  of declaration-after-statement.  [Bug #5014]
+	* string.c: Fix memory corruptions when using UTF-16/32 strings.
+	  [Bug #12536] [ruby-dev:49699]
 
-Sat Mar  9 21:29:45 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* string.c (rb_str_new_with_class): Use TERM_LEN of the "obj".
 
-	* signal.c (sigsegv): avoid to use async signal unsafe functions
-	  when nested sigsegv is happen.
-	  [Bug #5014] [ruby-dev:44082]
+	* string.c (rb_str_plus, rb_str_justify): Use str_new0 which is aware
+	  of termlen.
 
-Sat Mar  9 21:25:45 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* string.c (str_shared_replace): Copy +termlen bytes instead of +1.
 
-	* file.c (rb_group_member): added an error check. SUS says,
-	  getgroups(small_value) may return EINVAL.
+	* string.c (rb_str_times): termlen should not be included in capa.
 
-Sat Mar  9 21:23:36 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* string.c (RESIZE_CAPA_TERM): When using RSTRING_EMBED_LEN_MAX,
+	  termlen should be counted with it because embedded strings are
+	  also processed by TERM_FILL.
 
-	* process.c (RB_MAX_GROUPS): moved to
-	* internal.h (RB_MAX_GROUPS): here.
+	* string.c (rb_str_capacity, str_shared_replace, str_buf_cat): ditto.
 
-	* file.c (rb_group_member): use RB_MAX_GROUPS instead of
-	  RUBY_GROUP_MAX. They are the same.
+	* string.c (rb_str_drop_bytes, rb_str_setbyte, str_byte_substr): ditto.
 
-Sat Mar  9 21:15:39 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Thu Aug 18 23:43:33 2016  Eric Wong  <e@80x24.org>
 
-	* file.c (access_internal): removed.
-	* file.c (rb_file_readable_real): use access() instead of
-	  access_internal().
-	* file.c (rb_file_writable_real): ditto.
-	* file.c (rb_file_executable_real): ditto.
+	* ext/openssl/ossl_ssl.c (ossl_ssl_write_internal):
+	  avoid undefined behavior
+	* test/openssl/test_pair.rb (test_write_zero): new test
+	  [ruby-core:76751] [Bug #12660]
 
-Wed Mar  6 22:13:38 2013  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+Thu Aug 18 23:18:17 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-merge revision(s) 39297: [Backport #8032]
+	* ext/socket/option.c, ext/socket/rubysocket.h (inet_ntop): share
+	  the fallback definition.  [ruby-core:76646] [Bug #12645]
 
-	* tool/mkconfig.rb: clear exec_prefix which may differ from prefix,
-	  before expanding rubyarchdir to remove prefix.
+Thu Aug 18 23:07:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Mar  5 01:20:39 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+	* vm.c (vm_set_main_stack): remove unnecessary check.  toplevel
+	  binding must be initialized.  [Bug #12611] (N1)
 
-	* tool/merger.rb: add interaction when only ChangeLog is modified.
+	* win32/win32.c (w32_symlink): fix return type.  [Bug #12611] (N3)
 
-Tue Mar  5 01:03:16 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* string.c (rb_str_split_m): simplify the condition.
+	  [Bug #12611](N4)
 
-	* file.c (rb_group_member): get rid of NGROUPS dependency.
-	  [Bug #7886] [ruby-core:52537]
+Thu Aug 18 23:06:20 2016  Kouhei Sutou  <kou@cozmixng.org>
 
-Tue Mar  5 00:16:56 2013  Eric Hodel  <drbrain@segment7.net>
+	* lib/rexml/attribute.rb (REXML::Attribute#to_string): Fix wrong
+	  entry reference name of double quote.
+	  [Bug #12609][ruby-core:76509]
+	  Patch by Joseph Marrero. Thanks!!!
 
-	* ext/openssl/ossl.c (class OpenSSL):  Use only inner parenthesis in
-	  create_extension examples.
+Thu Aug 18 23:04:59 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-Tue Mar  5 00:16:56 2013  Eric Hodel  <drbrain@segment7.net>
+	* thread.c (rb_wait_for_single_fd): Clean up fds.revents every time
+	  before calling ppoll(2). [Bug #12575] [ruby-dev:49725]
 
-	* ext/openssl/ossl.c (class OpenSSL):  Fixed ExtensionFactory example.
-	  Patch by Richard Bradley.  [ruby-trunk - Bug #7551]
+Thu Aug 18 22:52:19 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Mon Mar  4 23:53:18 2013  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+	* vm_args.c (setup_parameters_complex): don't raise ArgumentError
+	  if an array is given for instance_exec with optional argument.
+	  [ruby-core:76300] [Bug #12568]
+	  https://github.com/rails/rails/pull/25699
 
-	(merge r39291)
-	* configure.in (opt-dir): remove debug print.
+Tue Aug 16 12:27:48 2016  Koichi Sasada  <ko1@atdot.net>
 
-Mon Mar  4 23:42:34 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* gc.c (gc_mark_roots): should mark the VM object itself to mark
+	  singleton class of the VM object.
+	  Before this patch, we only set mark bit for the VM object and
+	  invoke mark function separately.
+	  [Bug #12583]
 
-	* ext/psych/lib/psych/y.rb: Document Kernel#y by Adam Stankiewicz
-	  [Github tenderlove/psych#127]
+	* test/ruby/test_gc.rb: add a test.
 
-Mon Mar  4 23:37:14 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+Tue Aug 16 12:01:35 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* tool/mkconfig.rb: remove prefix from rubyarchdir.
-	  r39267 expands variables, it changes expansion timing,
-	  breaks RbConfig::CONFIG["includedir"] and building
-	  extension libraries with installed ruby.
+	* ext/digest/md5/md5ossl.h: Remove excess semicolons.
+	  Suppress warning on Solaris with Oracle Solaris Studio 12.
+	  [ruby-dev:49692] [Bug #12524]
 
-Sun Mar  3 02:45:13 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* ext/digest/md5/md5cc.h: ditto.
+	* ext/digest/sha1/sha1cc.h: ditto.
+	* ext/digest/sha1/sha1ossl.h: ditto.
+	* ext/digest/sha2/sha2cc.h: ditto.
+	* ext/digest/sha2/sha2ossl.h: ditto.
 
-	* vm.c (ENV_IN_HEAP_P): fix off-by-one error.
+Tue Aug 16 11:51:52 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Mar  3 02:39:01 2013  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* compile.c (ADD_TRACE): ignore trace instruction on non-positive
+	  line.
 
-	* test/ruby/test_thread.rb: fixed typo
-	  patched by Hiroki Matsue via https://github.com/ruby/ruby/pull/248
+	* parse.y (coverage): get rid of ArgumentError when the starting
+	  line number is not positive.  [ruby-core:76141] [Bug #12517]
 
-Sun Mar  3 02:22:56 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Aug 16 11:51:52 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* class.c (include_modules_at): detect cyclic prepend with original
-	  method table.  [ruby-core:52205] [Bug #7841]
+	* test/coverage/test_coverage.rb: ignored test when enabled to coverage.
+	  It lead to crash with `make test-all`.
 
-Sun Mar  3 02:16:24 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Aug 16 11:46:07 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* vm_method.c: call method_removed hook on called class, not on
-	  prepending iclass.  [ruby-core:52207] [Bug #7843]
+	* lib/uri/mailto.rb (initialize): RFC3986_Parser#split sets opaque
+	  only if the URI has path-rootless, not path-empty.
+	  [ruby-core:76055] [Bug #12498]
+	  patched by Chris Heisterkamp <cheister@squareup.com>
 
-Sun Mar  3 01:57:50 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Aug 16 04:57:28 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* configure.in (warnflags): disable -Werror by default unless
-	  development.  [ruby-core:52131] [Bug #7830]
+	* lib/net/http/generic_request.rb (write_header): A Request-Line must
+	  not contain CR or LF.
 
-Wed Feb 27 00:20:43 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Tue Aug 16 04:54:12 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* test/ruby/test_process.rb (test_setsid): Added a workaround for
-	  MacOS X. Patch by nagachika. [Bug #7826] [ruby-core:52126]
+	* lib/net/ftp.rb (putline): raise an ArgumentError when
+	  CR or LF is included in a line.
 
-Sun Feb 24 15:16:00 2013  Eric Hodel  <drbrain@segment7.net>
+Tue Aug 16 04:38:48 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/net/http.rb:  Removed duplicate Accept-Encoding in Net::HTTP#get.
-	  [ruby-trunk - Bug #7924]
-	* test/net/http/test_http.rb:  Test for the above.
+	* ext/date/date_strftime.c (date_strftime_with_tmx): reject too
+	  large precision to get rid of buffer overflow.
+	  reported by Guido Vranken <guido AT guidovranken.nl>.
 
-Wed Feb 20 14:23:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+Tue Aug 16 04:28:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* thread.c: Grammar for #backtrace_locations and ::handle_interrupt
+	* file.c (append_fspath): normalize directory name to be appended
+	  on OS X.  [ruby-core:75957] [Ruby trunk Bug#12483]
+	  https://github.com/rails/rails/issues/25303#issuecomment-224834804
 
-Fri Feb 22 11:10:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+Tue Aug 16 04:16:14 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* enum.c (Enumerable#chunk: Improved examples, grammar, and formatting
-	  Patch by Dan Bernier and Rich Bruchal of newhaven.rb
-	  [Backport #7926]
+	* regcomp.c (noname_disable_map): don't optimize out group 0
+	  Ruby's Regexp doesn't allow normal numbered groups if the regexp
+	  has named groups. On such case it optimizes out related NT_ENCLOSE.
+	  But even on the case it can use \g<0>.
+	  This fix not to remove NT_ENCLOSE whose regnum is 0.
+	  [ruby-core:75828] [Bug #12454]
 
-Fri Feb 22 02:33:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+Tue Aug 16 04:06:52 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/abbrev.rb: Add words parameter to Abbrev::abbrev
-	  Patch by Devin Weaver [Backport #7927]
+	* missing/crypt.c: fix size macros to use configured values
+	  for platforms long is larger than 32bit.
+	  [ruby-core:75792] [Bug #12446]
 
-Wed Feb 20 13:37:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+Tue Aug 16 04:03:25 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* ext/pty/pty.c: Documentation for the PTY module [Backport #7928]
+	* ext/openssl/ossl_bn.c (try_convert_to_bnptr): Extracted from
+	  GetBNPtr(). This doesn't raise exception but returns NULL on error.
+	  (GetBNPtr): Raise TypeError if conversion fails.
+	  (ossl_bn_eq): Implement BN#==.
+	  (ossl_bn_eql): #eql? should not raise TypeError even if the argument
+	  is not compatible with BN.
+	  (ossl_bn_hash): Implement BN#hash.
 
-Wed Feb 20 12:18:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* ext/openssl/ossl_bn.c (Init_ossl_bn): Define #== and #hash.
 
-	* object.c: Document Data class by Matthew Mongeau [Backport #7929]
+	* test/openssl/test_bn.rb: Test BN#eql?, #== and #hash
 
-Wed Feb 20 11:50:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+Tue Aug 16 03:51:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/mutex_m.rb: Add rdoc for Mutex_m module [Backport #7930]
+	* transcode.c (str_transcode0): scrub in the given encoding when
+	  the source encoding is given, not in the encoding of the
+	  receiver.  [ruby-core:75732] [Bug #12431]
 
-Tue Feb 19 12:30:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+Tue Aug 16 03:41:21 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* object.c: rdoc formatting for Kernel#Array() [Backport #7931]
-	* array.c: Add rdoc for Array() method to Creating Arrays section
+	* ext/openssl/ossl_pkey_dh.c (ossl_dh_compute_key): Check that the DH
+	  has 'p' (the prime) before calling DH_size(). We can create a DH with
+	  no parameter but DH_size() does not check and dereferences NULL.
+	  [ruby-core:75720] [Bug #12428]
 
-Sat Feb 23 16:51:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* ext/openssl/ossl_pkey_dsa.c (ossl_dsa_sign): Ditto. DSA_size() does
+	  not check dsa->q.
 
-	* thread.c: Documentation for Thread#backtrace_locations
-	  [Backport #7932]
+	* ext/openssl/ossl_pkey_rsa.c (ossl_rsa_public_encrypt,
+	  ossl_rsa_public_decrypt, ossl_rsa_private_encrypt,
+	  ossl_rsa_private_decrypt): Ditto. RSA_size() does not check rsa->n.
 
-Sat Feb 23 16:05:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+Tue Aug 16 03:10:42 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm.c: Typo in ObjectSpace::WeakMap overview [Backport #7933]
+	* transcode.c (enc_arg, str_transcode_enc_args, econv_args):
+	  remove volatile, and add GC guards in callers.
+	  [ruby-core:75664] [Bug #12411]
 
-Sat Feb 23 16:00:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+Tue Aug 16 02:45:52 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* thread.c: Improved rdoc for ::handle_interrupt, ::pending_interrupt?
-	  and #pending_interrupt? [Backport #7934]
+	* ext/psych/*, test/psych/*: Update psych 2.1.0
+	  This version fixed [Bug #11988][ruby-core:72850]
 
-Sat Feb 23 14:19:51 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Aug 12 04:15:10 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* include/ruby/ruby.h (HAVE_RB_SCAN_ARGS_OPTIONAL_HASH): for
-	  rb_scan_args() optional hash feature.  [Bug #7861]
+	* common.mk (build-ext), ext/extmk.rb: use variable EXTENCS
+	  different than ENCOBJS, to get rid of circular dependency.
+	  build libencs when linking encodings statically.
+	  [ruby-core:75618] [Bug #12401]
 
-Sat Feb 23 13:03:22 2013  Akinori MUSHA  <knu@iDaemons.org>
+Fri Aug 12 04:04:23 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/ipaddr.rb (IPAddr#in6_addr): Fix a typo with the closing
-	  parenthesis.
+	* process.c (rb_execarg_commandline): build command line string
+	  from argument vector in rb_execarg.
+	  [ruby-core:75611] [Bug #12398]
 
-Sat Feb 23 13:03:22 2013  Akinori MUSHA  <knu@iDaemons.org>
+Fri Aug 12 03:30:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/ipaddr.rb (IPAddr#in6_addr): Fix the parser so that it can
-	  recognize IPv6 addresses with only one edge 16-bit piece
-	  compressed, like [::2:3:4:5:6:7:8] or [1:2:3:4:5:6:7::].
-	  [Bug #7477]
+	* variable.c (rb_local_constants_i): exclude private constants
+	  when excluding inherited constants too.  [Bug #12345]
 
-Sat Feb 23 13:00:49 2013  Akinori MUSHA  <knu@iDaemons.org>
+Fri Aug 12 03:00:05 2016  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
 
-	* configure.in (LIBRUBY_DLDFLAGS): Fix a bug where --with-opt-dir
-	  options given were not reflected to LIBRUBY_DLDFLAGS on many
-	  platforms including Linux and other GNU-based systems, NetBSD,
-	  AIX and BeOS.
+	* lib/drb/timeridconv.rb: don't use keeper thread. [Bug #12342]
 
-Sat Feb 23 13:00:07 2013  Akinori MUSHA  <knu@iDaemons.org>
+	* test/drb/ut_timerholder.rb: ditto.
 
-	* configure.in: Fix a bug introduced in r38342 that the cflagspat
-	  substitution is messed up by the way CFLAGS and optflags are
-	  modified, which affected FreeBSD and NetBSD/amd64 when
-	  configured to use libexecinfo.  This bug resulted in CFLAGS and
-	  CXXFLAGS in RbConfig::CONFIG having warnflags expanded in them,
-	  forcing third-party C/C++ extensions to follow what warnflags
-	  demands, like ANSI/ISO-C90 conformance.  ref [Bug #7101]
+Fri Aug 12 02:46:37 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Sat Feb 23 12:58:32 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/ossl_ssl.c (ossl_ssl_stop): Don't free the SSL struct
+	  here. Since some methods such as SSLSocket#connect releases GVL,
+	  there is a chance of use after free if we free the SSL from another
+	  thread. SSLSocket#stop was documented as "prepares it for another
+	  connection" so this is a slightly incompatible change. However when
+	  this sentence was added (r30090, Add toplevel documentation for
+	  OpenSSL, 2010-12-06), it didn't actually. The current behavior is
+	  from r40304 (Correct shutdown behavior w.r.t GC., 2013-04-15).
+	  [ruby-core:74978] [Bug #12292]
 
-	* lib/mkmf.rb: remove extra topdir in VPATH, which was in
-	  win32/Makefile.sub for some reason and moved from there.
-	  [ruby-dev:46998] [Bug #7864]
+	* ext/openssl/lib/openssl/ssl.rb (sysclose): Update doc.
 
-Tue Feb 23 12:07:00 2013  Kenta MURATA  <mrkn@mrkn.jp>
+	* test/openssl/test_ssl.rb: Test this.
 
-	* backport r39321 from trunk. [ruby-core:51777] [Bug #7761]
+Thu Aug 11 01:30:29 2016  Marcus Stollsteimer  <sto.mar@web.de>
 
-	* ext/bigdecimal/bigdecimal.gemspec: bump to 1.2.0.
-	  [ruby-core:51777] [Bug #7761]
+	* ext/json/lib/*.rb: Removed some comments. Because these are unnecessary
+	  class description. [ci skip][Bug #12255][ruby-core:74835]
 
-Sat Feb 23 08:57:46 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+Thu Aug 11 01:09:43 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* backport r39410 from trunk
+	* pack.c (pack_pack): use union instead of bare variable to ease
+	  optimizations and avoid assigning x87 floating point number.
+	  [ruby-core:74496] [Bug #12209]
 
-	* doc/NEWS-*: Update NEWS from their respective branches
+	* pack.c (pack_unpack): ditto.
 
-Sat Feb 23 08:14:43 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+Tue Aug  2 01:34:12 2016  Eric Wong  <e@80x24.org>
 
-	* backport r39400-r39407 from trunk.
+	* lib/webrick/httpservlet/cgihandler.rb (do_GET): delete HTTP_PROXY
+	* test/webrick/test_cgi.rb (test_cgi_env): new test
+	* test/webrick/webrick.cgi (do_GET): new endpoint to dump env
+	  [ruby-core:76511] [Bug #12610]
 
-	* NEWS: many additions
+Tue Aug  2 01:33:11 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* object.c: Add doc for Module.prepended
+	* test/ruby/test_refinement.rb: skip
+	  test_prepend_after_refine_wb_miss on ARM or MIPS.
+	  [ruby-core:76031] [Bug #12491]
 
-Sat Feb 23 06:07:04 2013  Eric Hodel  <drbrain@segment7.net>
+Sat Jul 30 12:23:29 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* lib/rubygems/installer.rb (build_extensions):  Create extension
-	  install destination before building extension.  Patch by Kenta Murata.
-	  [ruby-trunk - Bug #7897]
-	* test/rubygems/test_gem_installer.rb:  Test for the above.
+	* vm_args.c (vm_caller_setup_arg_block): disable symbol block
+	  argument optimization when tail call optimization is enabled,
+	  in order to avoid SEGV.  [ruby-core:76288] [Bug #12565]
 
-Sat Feb 23 04:34:44 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+Sat Jul 30 12:10:51 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* NEWS: pending_interrupt? is both instance and singleton method
+	* proc.c (passed_block): convert passed block symbol to proc.
+	  based on the patch by Daisuke Sato in [ruby-dev:49695].
+	  [Bug #12531]
 
-Sat Feb 23 02:49:10 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+Sat Jul 30 10:58:49 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* NEWS: Add Thread#pending_interrupt? and Thread.handle_interrupt
+	* vm_insnhelper.c (vm_throw_start): check if the iseq is symbol
+	  proc, class definition should not be a symbol proc.
+	  [ruby-core:75856] [Bug #12462]
 
-Fri Feb 22 19:22:05 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+Mon Jul 11 22:35:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* lib/rexml/document.rb (REXML::Document.entity_expansion_text_limit):
-	  new attribute to read/write entity expansion text limit.  the default
-	  limit is 10Kb.
+	* bignum.c (rb_big_hash): make it public function to be available in
+	  other source files, and remove documentation comment for Bignum#hash.
 
-	* lib/rexml/text.rb (REXML::Text.unnormalize): check above attribute.
+	* bignum.c (Bignum#hash): remove its definition because it is unified
+	  with Object#hash.
 
-Thu Feb 21 05:03:38 2013  Eric Hodel  <drbrain@segment7.net>
+	* include/ruby/intern.h (rb_big_hash): add a prototype declaration.
 
-	* lib/rubygems/commands/update_command.rb:  Create the installer after
-	  options are processed.  [ruby-trunk - Bug #7779]
-	* test/rubygems/test_gem_commands_update_command.rb:  Test for the
-	  above.
+	* hash.c (any_hash): treat Bignum values directly.
 
-Thu Feb 21 04:54:14 2013  Eric Hodel  <drbrain@segment7.net>
+Sat Jul  2 04:00:50 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rubygems/installer.rb:  Use gsub instead of gsub! to avoid
-	  altering @bin_dir.  Fixes tests on windows.  [ruby-trunk - Bug #7885]
+	* string.c (tr_trans): consider terminator length and fix heap
+	  overflow.  reported by Guido Vranken <guido AT guidovranken.nl>.
 
-Thu Feb 21 03:16:37 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+Sat Jul  2 03:33:28 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* NEWS: Floats are frozen too
+	* vm.c (invoke_bmethod, invoke_block_from_c_0): revert r52104
+	  partially to avoid "self has wrong type to call super in this
+	  context" errors.
+	  [ruby-core:72724] [Bug #11954]
 
-Thu Feb 21 03:10:53 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+Mon Jun 20 02:38:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* NEWS: Add that Fixnums and Bignums are frozen
+	* lib/optparse.rb (OptionParser::Completion.candidate): get rid of
+	  nil as key names.  [ruby-core:75773] [Bug #12438]
 
-Wed Feb 20 17:02:12 2013  Koichi Sasada  <ko1@atdot.net>
+	* lib/optparse.rb (OptionParser#make_switch): char class option
+	  cannot be NoArgument, default to RequiredArgument.
 
-	* vm_eval.c (vm_call0_body): check interrupts after method dispatch
-	  from C methods. [Bug #7878]
+Mon Jun 20 02:25:44 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Wed Feb 20 08:05:25 2013 Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* re.c (unescape_nonascii): scan hex up to only 3 characters.
+	  [Bug #12420] [Bug #12423]
 
-	* compar.c (rb_invcmp): compare by inversed comparison, with preventing
-	  from infinite recursion.  [ruby-core:52305] [Bug #7870]
+Mon Jun 20 02:25:44 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* string.c (rb_str_cmp_m), time.c (time_cmp): get rid of infinite
-	  recursion.
+	* regparse.c (fetch_token_in_cc): raise error if given octal escaped
+	  character is too big. [Bug #12420] [Bug #12423]
 
-Tue Feb 19 15:49:58 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Jun 19 04:29:13 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* configure.in (unexpand_shvar): regularize a shell variable by
-	  unexpanding shell variables in it.
+	* include/ruby/missing.h (isfinite): move from numeric.c.
 
-	* configure.in (shvar_to_cpp): do not substitute exec_prefix itself
-	  with RUBY_EXEC_PREFIX, which cause recursive definition.
-	  [ruby-core:52296] [Bug #7860]
+Sun Jun 19 04:29:13 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* configure.in: unexpand arch sitearch and exec_prefix values, so
-	  directly specified bindir, libdir, rubyprefix, etc can be properly
-	  substituted.  [ruby-core:52296] [Bug #7860]
+	* ext/bigdecimal/bigdecimal.c (isfinite): get rid of a warning on
+	  cygwin. [Bug #12417][ruby-core:75691]
 
-Tue Feb 19 14:08:46 2013  Eric Hodel  <drbrain@segment7.net>
+Sun Jun 19 04:29:13 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* backport r39307 from trunk.  [Bug #7880]
+	* ext/bigdecimal/bigdecimal.c (isfinite): isfinite does not always
+	  exist.  fixed build error on Windows introduced at r55123.
 
-	* lib/rubygems/installer.rb:  Fixed placement of executables with
-	  --user-install.  [ruby-trunk - Bug #7779]
+Sun Jun 19 04:29:13 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/rubygems/test_gem_installer.rb:  Test for above.
+	* ext/bigdecimal/bigdecimal.c (GetVpValueWithPrec): consider
+	  non-finite float values not to raise FloatDomainError.
+	  [ruby-core:75682] [Bug #12414]
 
-Tue Feb 19 13:57:26 2013  Eric Hodel  <drbrain@segment7.net>
+Thu Jun 16 00:42:56 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* backport r39247 from trunk. [Bug #7853]
-
-	* lib/rdoc.rb:  Update to release version of 4.0.0
-
-	* lib/rubygems.rb:  Update to release version of 2.0.0
-
-Tue Feb 19 12:25:27 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/Makefile.sub (config.status): site and vendor directories
-	  should use sitearch, not arch.  [ruby-dev:46964] [Bug #7823]
-
-Tue Feb 19 07:51:01 2013  Koichi Sasada  <ko1@atdot.net>
-
-	* backport r39275 from trunk. [ruby-dev:46994] [Bug #7774]
-
-	* proc.c (rb_binding_new_with_cfp): create binding object even if
-	  the frame is IFUNC. But return a ruby-level binding to keep
-	  compatibility.
-	  This patch fix degradation introduced from r39067.
-	  [Bug #7774] [ruby-dev:46960]
-
-	* test/ruby/test_settracefunc.rb: add a test.
-
-Sat Feb 16 20:43:43 2013  Koichi Sasada  <ko1@atdot.net>
-
-	* backport r39276 from trunk. [ruby-dev:46997] [Bug #7825]
-
-	* vm.c (rb_thread_mark): mark a working Proc of bmethod
-	  (a method defined by define_method) even if the method was removed.
-	  We could not trace working Proc object which represents the body
-	  of bmethod if the method was removed (alias/undef/overridden).
-	  Simply, it was mark miss.
-	  This patch by Kazuki Tsujimoto. [Bug #7825]
-
-	  NOTE: We can brush up this marking because we do not need to mark
-	  `me' on each living control frame. We need to mark `me's
-	  only if `me' was free'ed. This is future work after Ruby 2.0.0.
-
-	* test/ruby/test_method.rb: add a test.
+	* string.c (rb_str_modify_expand): check integer overflow.
+	  [ruby-core:75592] [Bug #12390]
 
-Fri Feb 15 00:49:32 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/net/http.rb:  Removed OpenSSL dependency from Net::HTTP.
-
-	* test/net/http/test_http.rb:  Remove Zlib dependency from tests.
-	* test/net/http/test_http_request.rb:  ditto.
-
-Fri Feb 15 00:49:32 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/net/http:  Do not handle Content-Encoding when the user sets
-	  Accept-Encoding.  This allows users to handle Content-Encoding for
-	  themselves.  This restores backwards-compatibility with Ruby 1.x.
-	  [ruby-trunk - Bug #7831]
-	* lib/net/http/generic_request.rb:  ditto.
-	* lib/net/http/response.rb:  ditto
-	* test/net/http/test_http.rb:  Test for the above.
-	* test/net/http/test_http_request.rb:  ditto.
-	* test/net/http/test_httpresponse.rb:  ditto.
-
-Thu Feb 14 13:17:10 2013  Zachary Scott  <zachary@zacharyscott.net>
-
-	* Backport r39168 Warning about TracePoint events to 2.0.0
-	  [ruby-core:52073] [Bug #7815]
-
-	* vm_trace.c: note about TracePoint events set
-
-Thu Feb 14 07:04:13 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* Backport r39213 from trunk [ruby-trunk - Bug #7383]
-
-	* lib/rubygems.rb:  Return BINARY strings from Gem.gzip and Gem.gunzip.
-	  Fixes intermittent test failures.  RubyGems issue #450 by Jeremey
-	  Kemper.
-	* test/rubygems/test_gem.rb:  Test for the above.
-
-Thu Feb 14 07:01:12 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* Backport part of r39166 from trunk [ruby-trunk - Bug #7809]
-
-	* lib/rubygems/package.rb:  Include checksums.yaml.gz signatures for
-	  verification.
-	* test/rubygems/test_gem_package.rb:  Test for the above.
-
-Wed Feb 13 15:34:21 2013  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/json: merge JSON 1.7.7.
-	  This includes security fix. [CVE-2013-0269]
-	  https://github.com/flori/json/commit/d0a62f3ced7560daba2ad546d83f0479a5ae2cf2
-	  https://groups.google.com/d/topic/rubyonrails-security/4_YvCpLzL58/discussion
-
-Sat Feb  9 21:13:35 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* backport r39167 from trunk. [ruby-core:52059] [Bug #7812]
-
-	* BSDL: update copyright notice for 2013.
-
-Fri Feb  8 19:56:54 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* array.c (rb_ary_dup): reverted r39004.  see [Bug #7768], and
-	  release manager finally decided to revert it.
-
-Fri Feb  8 16:09:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_ensure): preserve errinfo across ensure proc before
-	  JUMP_TAG().  [ruby-core:52022] [Bug #7802]
-
-Fri Feb  8 16:08:28 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/ruby/envutil.rb (assert_separately): check also terminating
-	  signal not only if core dumped.
-
-Fri Feb  8 13:12:04 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/generator/darkfish.rb:  Set encoding on output template to
-	  user-specified encoding.
-	* test/rdoc/test_rdoc_generator_darkfish.rb:  Test for above.
-
-	* lib/rdoc.rb:  Bump version
-
-Fri Feb  8 11:53:33 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/security/policy.rb:  Raise proper exceptions when
-	  verifying unsigned gems (instead of crashing).
-	* test/rubygems/test_gem_security_policy.rb:  Tests for the above.
-
-Fri Feb  8 10:44:44 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* test/rubygems/test_gem_dependency_installer.rb:  Improve coverage of
-	  --install-dir feature of gem install.
-
-Fri Feb  8 10:11:09 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/config_file.rb:  Add missing require for
-	  user_interaction.rb
-
-	* lib/rubygems/dependency_installer.rb:  Minor refactor for clarity.
-
-Fri Feb  8 09:35:17 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (MakeMakefile#configuration): set all ruby names.
-	  hdrdir now needs RUBY_VERSION_NAME.
-
-Fri Feb  8 08:58:26 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/package/old.rb:  Fix loading old format gems on ruby
-	  1.8.  This commit is only so trunk and rubygems master have the same
-	  code.
-
-Fri Feb  8 08:53:27 2013  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/visitors/yaml_tree.rb: fixing string quotation
-	  when dumping Ruby strings. Thanks Ingy
-
-	* test/psych/test_psych.rb: appropriate tests.
-
-	* test/psych/test_yaml.rb: ditto
-
-Fri Feb  8 08:50:42 2013  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/visitors/yaml_tree.rb: change output reference
-	  ids to be sequential numbers.
-
-Fri Feb  8 07:47:56 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/package/old.rb:  Disallow installation of old-format
-	  gems when a security policy is active.
-	* test/rubygems/test_gem_package_old.rb:  Test for above.
-
-Fri Feb  8 07:34:00 2013  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/net/http.rb (HTTP.post_form): Fix module scope in documentation
-	  Patch by David Albert [Bug #7794] [ruby-core:51955]
-
-Fri Feb  8 07:33:00 2013  Zachary Scott  <zachary@zacharyscott.net>
-
-	* compar.c (cmp_equal): Document ignored exception and return false
-	  By Makoto Kishimoto [Bug #7790] [ruby-dev:46925] [ruby-dev:46910]
-
-Fri Feb  8 07:17:00 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/dependency_installer.rb:  Only install local gems if
-	  they end in '.gem'.  Fixes github rubygems issue #407.
-	* test/rubygems/test_gem_dependency_installer.rb:  Test for the above.
-
-Fri Feb  8 00:02:48 2013  Tanaka Akira  <akr@fsij.org>
-
-	* process.c (obj2gid): use getgrnam_r() only if getgrnam_r() and
-	  _SC_GETGR_R_SIZE_MAX is available.
-	  MirOS BSD (MirBSD 10 GENERIC#1382 i386) have getgrnam_r() but
-	  no _SC_GETGR_R_SIZE_MAX.
-	  (obj2uid): use getpwnam_r() only if getpwnam_r() and
-	  _SC_GETPW_R_SIZE_MAX is available.
-	  This is consistency for obj2gid.
-	  MirOS BSD have neither getpwnam_r() nor _SC_GETPW_R_SIZE_MAX.
-
-Thu Feb  7 22:01:18 2013  Tanaka Akira  <akr@fsij.org>
-
-	* configure.in: define linker for shared library on MirOS BSD.
-
-Thu Feb  7 21:09:23 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/rubygems/test_gem_config_file.rb
-	  (TestGemConfigFile#test_check_credentials_permissions): skip on
-	  Windows. see [Bug #7784] [ruby-core:51864] and r39070.
-
-Thu Feb  7 20:52:40 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/Makefile.sub (config.status): added variables which were
-	  missing at r39130.
-
-Thu Feb  7 15:33:17 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (MakeMakefile#merge_libs): insert following reversal
-	  ordered elements just after the duplicated element, not overwriting
-	  successive elements.  [ruby-core:50314] [Bug #7467]
-
-Thu Feb  7 14:56:15 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/package.rb:  Ensure digests are generated for signing.
-	* test/rubygems/test_gem_package.rb:  Test for the above.
-
-	* lib/rubygems/security/policy.rb:  Ensure digests are present when
-	  verifying a gem and match the number of signatures bidirectionally.
-	* test/rubygems/test_gem_security_policy.rb:  Test for the above.
-
-	* lib/rubygems.rb:  Documentation improvements (by zzak)
-
-Thu Feb  7 05:52:00 2013  Zachary Scott  <zachary@zacharyscott.net>
-
-	* doc/pty/README: Remove static documentation file
-	* ext/pty/pty.c: Add License to PTY module overview
-
-Thu Feb  7 02:31:10 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* vm_insnhelper.c: attr_writer should return its argument [Bug #7773]
-
-	* test/ruby/test_basicinstructions.rb: Test for above
-
-Thu Feb  7 01:35:00 2013  Zachary Scott  <zachary@zacharyscott.net>
-
-	* doc/security.rdoc: Link to japanese version of CVE page patch by
-	  nagachika
-
-Wed Feb  6 23:30:00 2013  Zachary Scott  <zachary@zacharyscott.net>
-
-	* doc/pty/README.expect: Removed static documentation file
-	* ext/pty/lib/expect.rb: Documentation for IO#expect
-
-Wed Feb  6 22:25:00 2013  Charlie Somerville  <charlie@charliesomerville.com>
-
-	* hash.c (env_reject_bang): hide keys array from ObjectSpace
-	* hash.c (env_select_bang): ditto
-
-Wed Feb  6 17:33:01 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (multiarch): add option to move architecture dependent
-	  directories.  [Feature #6111]
-
-	* template/ruby.pc.in: add arch dependent paths.
-
-	* configure.in (rubyarchhdrdir, sitearchhdrdir, vendorarchhdrdir): add
-	  options to customize architecture dependent header directories.
-
-	* configure.in (rubyarchprefix, sitearchdir, vendorarchdir): add
-	  options to customize architecture dependent library directories.
-
-	* template/ruby.pc.in, tool/mkconfig.rb, tool/rbinstall.rb: use
-	  configured values.
-
-	* tool/mkconfig.rb: expand rubyarchdir to extract prefix.
-
-	* configure.in (RUBY_VERSION_NAME), template/ruby.pc.in: add
-	  substitution and define.
-
-	* configure.in, version.c: parametric architecture name for paths.
-
-	* configure.in (shvar_to_cpp): convert sh variable references
-	  by replacing with string literal forms in cpp.
-
-Wed Feb  6 17:05:26 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc:  Import RDoc 4.0.0.rc.2
-
-Mon Feb  4 02:22:49 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* test/ruby/test_process.rb (test_setsid): ensure to call
-	  Process.wait(). Reported by George Koehler. Thanks.
-
-Mon Feb  4 02:18:00 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* test/ruby/test_process.rb (test_setsid): skip when platform is
-	  OpenBSD. Contributed from George Koehler.
-	  [Bug #7789] [ruby-core:51889]
-
-Wed Feb  6 13:35:20 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* proc.c (rb_method_entry_location, rb_{mod,obj}_method_location): new
-	  functions to obtain source location of method definition.
-
-	* vm_method.c (rb_obj_respond_to): show the location of old style
-	  respond_to? method.
-
-Wed Feb  6 13:03:00 2013  Zachary Scott  <zachary@zacharyscott.net>
-
-	* doc/security.rdoc: Add link to CVEs on ruby-lang.org/en/security
-
-Wed Feb  6 12:49:00 2013  Zachary Scott  <zachary@zacharyscott.net>
-
-	* NEWS: Add note about removal of CSV::load and CSV::dump from r39077
-
-Wed Feb  6 05:57:00 2013  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/racc/parser.rb: Hide copyright notice from Racc doc
-
-Wed Feb  6 05:50:00 2013  Zachary Scott  <zachary@zacharyscott.net>
-
-	* doc/rubygems/*: Removed outdated documentation files
-	* lib/rubygems/LICENSE.txt: Include license file
-	* lib/rubygems.rb: Move Gem module documentation so rdoc can parse it
-	  and link to LICENSE.txt
-	* lib/rubygems/*: Hide useless documentation from Gem module rdoc
-
-Wed Feb  6 03:45:19 2013  Zachary Scott  <zachary@zacharyscott.net>
-
-	* doc/security.rdoc: Remove documentation for unsafe CSV.load which
-	  was deleted in r39077
-
-Wed Feb  6 03:27:19 2013  James Edward Gray II  <james@graysoftinc.com>
-
-	* lib/csv.rb: Remove the dangerous serialization feature.
-
-Wed Feb  6 00:56:00 2013  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/irb.rb: Remove example from restrictions, it works [Github #246]
-	  Based on patch by Ryunosuke SATO
-
-Wed Feb  6 00:46:53 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* vm.c (rb_vm_stack_to_heap): call rb_vm_get_binding_creatable_next_cfp
-	  instead of rb_vm_get_ruby_level_next_cfp to prevent a segfault by
-	  calling Kernel#callcc. See r39067 for more details.
-	  [ruby-dev:46908] [ruby-trunk - Bug #7774]
-
-	* test/ruby/test_settracefunc.rb: add a test.
-
-Tue Feb  5 18:48:00 2013  Charlie Somerville  <charlie@charliesomerville.com>
-
-	* doc/security.rdoc: add regex, eval and drb sections
-
-Tue Feb  5 17:24:02 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/servlet.rb:  Fixed root search paths, filesystem paths
-	  instead of HTTP paths were returned.
-	* test/rdoc/test_rdoc_servlet.rb:  Test for above.
-
-Tue Feb  5 16:37:00 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/config_file.rb:  Ignore permissions check on windows.
-	  Windows writes 0600 file as 0644 permissions making the check
-	  useless.
-
-Tue Feb  5 16:25:25 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_method.c (rb_obj_respond_to): drop optional include_all flag if
-	  respond_to? method is defined in old style.  [Bug #7722]
-
-Tue Feb 05 15:04:34 2013  Koichi Sasada  <ko1@atdot.net>
-
-	* proc.c (rb_binding_new_with_cfp): permit to create binding object
-	  of IFUNC frame.
-	  When `rb_binding_new_with_cfp()' is called, VM finds out the first
-	  normal (has iseq) frame and create a binding object of this frame
-	  and create Env objects. `ep's of related frames are updated
-	  (`ep's point Env object managed spaces).
-	  However, `ep' of skipped IFUNC frame was not updated and
-	  old invalid `ep' was remained. It causes serious problems.
-	  To solve this issue, permit IFUNC to create binding.
-	  (Maybe there is no problem on it)
-	  [ruby-dev:46908] [ruby-trunk - Bug #7774]
-
-	* test/ruby/test_settracefunc.rb: add a test.
+Thu Jun 16 00:29:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm.c (rb_vm_get_binding_creatable_next_cfp), vm_core.h: added.
+	* vm_insnhelper.c (vm_get_ev_const): warn deprecated constant even
+	  in the class context.  [ruby-core:75505] [Bug #12382]
 
-	* vm_trace.c: fix to use `rb_vm_get_binding_creatable_next_cfp()'.
+Tue Jun 14 03:49:28 2016  Eric Wong  <e@80x24.org>
 
-Tue Feb  5 14:43:15 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* dir.c (dir_close): update RDoc for 2.3 #close change
+	  [ruby-core:75679] [Bug #12413]
 
-	* lib/matrix.rb: Fix error message, patch by pypypy [Bug #7777]
+Tue Jun 14 03:47:29 2016  Eric Wong  <e@80x24.org>
 
-Tue Feb  5 14:36:04 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* proc.c: fix RDoc of Proc#===/call/yield/[]
+	  [Bug #12332]
 
-	* numeric.c (fix_pow): Handle special cases when base is 0, -1 or +1
-	  [Bug #5713] [Bug #5715]
+Tue Jun 14 03:34:27 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* rational.c (nurat_expt): ditto
+	* variable.c (rb_local_constants_i): exclude hidden constants.
+	  [ruby-core:75575] [Bug #12389]
 
-Tue Feb  5 13:27:53 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jun 14 03:25:14 2016  Benoit Daloze  <eregontp@gmail.com>
 
-	* ext/io/console/console.c (rawmode_opt): use default values by `stty
-	  raw`.
+	* insns.def (defineclass): Also raise an error when redeclaring the
+	  superclass of a class as Object and it has another superclass.
+	  [Bug #12367] [ruby-core:75446]
 
-Tue Feb  5 12:50:47 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* test/ruby/test_class.rb: test for above.
 
-	* range.c: Use div instead of / for bsearch
+Tue Jun 14 03:15:54 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_range.rb: Test showing bug when requiring mathn
+	* process.c (rb_exec_getargs): honor the expected argument types
+	  over the conversion method.  the basic language functionality
+	  should be robust.  [ruby-core:75388] [Bug #12355]
 
-Tue Feb  5 12:48:38 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+Tue Jun 14 03:02:38 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* enumerator.c: Use to_enum for Enumerable methods returning
-	  Enumerators.
-	  This makes Lazy#cycle no longer needed, so it was removed.
-	  Make Enumerator#chunk and slice_before return lazy Enumerators.
-	  [Bug #7715]
+	* win32/win32.c, include/ruby/win32.h (rb_w32_utruncate): implements new
+	  truncate alternative which accepts UTF-8 path.
 
-	* internal.h: Remove ref to rb_enum_cycle_size; no longer needed
+	* file.c (truncate): use above function.
+	  [Bug #12340]
 
-	* enum.c: Make enum_cycle_size static.
+Tue Jun 14 02:58:41 2016  Marcus Stollsteimer  <sto.mar@web.de>
 
-	* test/ruby/test_lazy_enumerator.rb: Test for above
+	* ext/date/date_core.c (Init_date_core): [DOC] Convert DateTime
+	  documentation to RDoc from Markdown.
+	  [ruby-core:75136] [Bug #12311]
 
-Tue Feb  5 12:48:10 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+Sun Jun 12 02:36:52 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* enumerator.c: Finalize and document Lazy.new. [Bug #7248]
-	  Add Lazy#to_enum and simplify Lazy#size.
+	* regcomp.c (compile_length_tree): return error code immediately
+	  if compile_length_tree raised error [Bug #12418]
 
-	* test/ruby/test_lazy_enumerator.rb: tests for above
+Sun Jun 12 02:27:07 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Tue Feb  5 11:35:35 2013  Eric Hodel  <drbrain@segment7.net>
+	* thread.c (recursive_list_access): a object id may be a Bignum.  so,
+	  the list must be a objhash, instead of a identhash.
+	  this fixes many test errors on mswin64 CI.
 
-	* lib/rubygems/commands/push_command.rb:  Fixed credential download for
-	  `gem push --host`
-	* lib/rubygems/gemcutter_utilities.rb:  ditto.
-	* test/rubygems/test_gem_commands_push_command.rb:  Test for the above.
-	* test/rubygems/test_gem_gemcutter_utilities.rb:  ditto.
+Sun Jun 12 01:59:33 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rubygems/config_file.rb:  Abort if the `gem push` credentials
-	  file has insecure permissions.
-	* test/rubygems/test_gem_config_file.rb:  Test for the above.
+	* parse.y (new_if_gen): set newline flag to NODE_IF to trace all
+	  if/elsif statements.  [ruby-core:67720] [Bug #10763]
 
-	* lib/rubygems/ext/builder.rb:  Do not look for Gemfile, Isolate, etc.
-	  while building gem extensions.
+Sun May 15 02:33:52 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rubygems/package.rb:  Unset spec and files list if a gem's
-	  signatures cannot be verified.
-	* test/rubygems/test_gem_package.rb:  Test for the above.
+	* lib/mkmf.rb (pkg_config): use xsystem consistently to set up
+	  library path environment variable as well as latter pkg-config
+	  calls.  [ruby-dev:49619] [Bug #12379]
 
-	* lib/rubygems/specification.rb:  Reduce use of eval.
-	* lib/rubygems/test_case.rb:  ditto.
+Fri May  6 02:30:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/rubygems/test_gem_specification.rb:  Test setting
-	  specification_version for legacy gems.  Dup Gem.ruby before
-	  untainting in case it's frozen.
+	* lib/optparse.rb: [DOC] fix example code.  base on the code by
+	  Semyon Gaivoronskiy in [ruby-core:75224].  [Bug #12323]
 
-	* lib/rubygems.rb:  Reduce use of eval.  Only read files when looking
-	  for Gemfile, Isolate, etc.
-	* test/rubygems/test_gem.rb:  Test for the above.
+Fri May  6 02:28:31 2016  Masaki Suketa <masaki.suketa@nifty.ne.jp>
 
-Tue Feb  5 10:15:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* ext/win32ole/win32ole.c (ole_vstr2wc, ole_variant2val): fix blank
+	  string conversion.
+	  [Bug #11880]
+	  Thanks Akio Tajima for the patch!
 
-	* doc/security.rdoc: Wrap security guide at 80 columns
+Fri May  6 02:24:13 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-Tue Feb  5 10:15:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* bignum.c: [DOC] Update result of 123456789 ** -2.
+	  [ruby-dev:49606] [Bug #12339]
 
-	* doc/security.rdoc: Grammatical error on security guide
-	  Patch by Josh Bassett [Github fixes #245]
+Wed May  4 02:38:08 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-Tue Feb  5 10:00:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* internal.h (RCOMPLEX_SET_IMAG): undef RCOMPLEX_SET_IMAG
+	  instead of duplicated undef RCOMPLEX_SET_REAL.
 
-	* lib/racc/parser.rb: Update #do_parse and #yyparse from upstream
-	  See [Github tenderlove/racc@7d954b5]
+Wed May  4 02:38:08 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-Tue Feb  5 09:55:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* complex.c (rb_complex_set_imag): Fix to properly set imag
+	  of complex.
 
-	* lib/racc: Merge Racc documentation downstream, add grammar ref file
+Tue Apr 26 23:34:45 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-Tue Feb  5 08:03:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* version.h: Bump versionto 2.3.2.
 
-	* lib/irb.rb, lib/irb/ext/save-history.rb: Add documentation on how to
-	  enabled irb history [ruby-core:51347] [Bug #7679]
+Tue Apr 26 02:58:51 2016  Marcus Stollsteimer  <sto.mar@web.de>
 
-Tue Feb  5 07:35:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* doc/extension.rdoc: Improvements to english grammers.
+	  [Bug #12246][ruby-core:74792][ci skip]
 
-	* lib/irb.rb, lib/irb/context.rb: Add documentation on how to enable
-	  auto-indentation and autocompletion using irbrc and irb_context
-	  [ruby-core:51209] [Bug #7642] and [ruby-core:51348] [Bug #7680]
+Tue Apr 26 02:58:51 2016  craft4coder  <yooobuntu@163.com>
 
-Tue Feb  5 05:20:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* doc/extension.rdoc: [DOC] `nul` should be uppercase.
+	  change 'nul' => 'NUL'.  [Fix GH-1172]
 
-	* doc/standard_library.rdoc: Document list of libraries and extensions
-	  and their purpose or short description
-	* lib/README: Remove lib/README in favor of doc/standard_library.rdoc
+Tue Apr 26 02:54:57 2016  Marcus Stollsteimer  <sto.mar@web.de>
 
-Tue Feb  5 04:40:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* encoding.c: Fix return value of `Encoding::ISO8859_1.name`
+	  [Bug #12313][ruby-core:75147][ci skip]
+	* ext/bigdecimal/bigdecimal.c: Fix code sample of `BigDecimal.new`
 
-	* ext/json/lib/json.rb: Move module overview definition for rdoc
+Mon Apr 25 02:29:07 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Tue Feb  5 03:00:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* configure.in: add missing -lm for AIX.
 
-	* lib/tracer.rb: Move class overview definition and reformat
+Mon Apr 25 02:29:07 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Mon Feb  4 15:10:10 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* configure.in: don't use the system-provided round(3) on AIX.
+	  In AIX, round(0.49999999999999994) returns 1.0.
+	  Use round() in numeric.c instead.
 
-	* ext/io/console/console.c (rawmode_opt): initialize options for the
-	  case all options are not given.
+Sun Apr 24 03:05:47 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Feb  4 12:44:13 2013  Koichi Sasada  <ko1@atdot.net>
+	* ruby.c: cygwin does not use w32_cmdvector, command line can be
+	  other than UTF-8.  [ruby-dev:49519] [Bug #12184]
 
-	* vm_dump.c (control_frame_dump): capitalize prefix of `ep'
-	  if `ep' points an env object.
+Sat Apr 23 01:01:13 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Feb  4 04:20:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* eval_jump.c (exec_end_procs_chain): restore previous error info
+	  for each end procs.  [ruby-core:75038] [Bug #12302]
 
-	* lib/English.rb: Add English module for RDoc to parse, then
-	  remove_const to avoid confusion. Include full list of aliases and
-	  their associated global variable.
+Sat Apr 23 00:51:51 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Feb  4 02:40:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* compile.c (new_label_body): initialize bit fields, since
+	  compile_data_alloc does not clear the memory.  [Bug #12082]
 
-	* lib/yaml.rb (YAML::EngineManager): Documentation for #yamler and
-	  #yamler= for using the removed Syck gem as the YAML::ENGINE
+Sat Apr 23 00:51:51 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Feb  3 16:54:27 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* compile.c (iseq_optimize): disable tail call optimization in
+	  rescued, rescue, and ensure blocks.
+	  [ruby-core:73871] [Bug #12082]
 
-	* ext/io/console/io-console.gemspec: bump.  [Bug #7762]
+Sat Apr 23 00:33:04 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* test/io/console/test_io_console.rb (test_stringio_getch): use more
-	  descriptive assertions.
+	* ext/nkf/nkf-utf8/nkf.c (mime_putc): fix typo.
+	  [Bug #12202] [ruby-core:74802]
 
-	* ext/io/console/console.c (rawmode_opt): min is minimum characters,
-	  not tenths.
+Sat Apr 23 00:33:04 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Sun Feb  3 16:13:00 2013  Charlie Somerville  <charlie@charliesomerville.com>
+	* ext/nkf/nkf-utf8/nkf.c: Merge upstream 4f3edf80a0.
+	  patched by Anton Sivakov [Bug #12201] [Bug #12202]
 
-	* doc/security.rdoc: add first cut at a Ruby security document
+Sat Apr 23 00:29:15 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Sun Feb  3 10:25:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* lib/securerandom.rb (gen_random): to avoid blocking on Windows.
+	  On Windows OpenSSL RAND_bytes (underlying implementation is
+	  RAND_poll in crypto/rand/rand_win.c) may be blocked at
+	  NetStatisticsGet.
+	  https://wiki.openssl.org/index.php/Random_Numbers#Windows_Issues
+	  Instead of this, use Random.raw_seed directly (whose implementation
+	  CryptGenRandom is one of the source of
+	  entropy of RAND_poll on Windows).
+	  https://wiki.openssl.org/index.php/Random_Numbers
+	  Note: CryptGenRandom function is PRNG and doesn't check its entropy,
+	  so it won't block. [Bug #12139]
+	  https://msdn.microsoft.com/ja-jp/library/windows/desktop/aa379942.aspx
+	  https://tools.ietf.org/html/rfc4086#section-7.1.3
+	  https://eprint.iacr.org/2007/419.pdf
+	  http://www.cs.huji.ac.il/~dolev/pubs/thesis/msc-thesis-leo.pdf
 
-	* random.c: Document range argument for Kernel#rand.
-	  [ruby-core:51794] [Bug #7770]
+Sat Apr 23 00:25:26 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Feb  3 10:00:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* miniinit.c (Init_enc): add some common aliases of built-in
+	  encodings.  [ruby-core:72481] [Bug #11872]
 
-	* numeric.c: Document Float constants [ruby-core:51484] [Bug #7709]
+Sat Apr 23 00:13:50 2016  sorah (Shota Fukumori)  <her@sorah.jp>
 
-Sun Feb  3 09:38:44 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/forwardable.rb: Convert given accessors to String.
 
-	* lib/profiler.rb (PROFILE_CALL_PROC, PROFILE_RETURN_PROC): add b_call
-	  and b_return to profile block calls.
+	  r53381 changed to accept only Symbol or String for accessors, but
+	  there are several rubygems that pass classes (e.g. Array,
+	  Hash, ...) as accessors. Prior r53381, it was accepted because Class#to_s
+	  returns its class name. After r53381 given accessors are checked
+	  with define_method, but it accepts only Symbol or String, otherwise
+	  raises TypeError.
 
-	* lib/profiler.rb (PROFILE_CALL_PROC, PROFILE_RETURN_PROC): split
-	  PROFILE_PROC for call and return events.
+	      def_delegator Foo, :some_method
 
-Sat Feb  2 14:32:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	  This change is to revert unexpected incompatibility. But this behavior
+	  may change in the future.
 
-	* lib/minitest/mock.rb, lib/minitest/hell.rb: nodoc top-level module
+Sat Apr 23 00:02:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Feb  2 14:05:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* configure.in: check if succeeded in creating config.h.
 
-	* lib/debug.rb: Documentation for DEBUGGER__ class methods based on
-	  patch by Vincent Batts [ruby-core:51253]
+	* tool/ifchange: ignore failures when TEST_COLORS unmatched. just
+	  use the default value if expected name is not contained in it.
+	  [ruby-core:75046] [Bug #12303]
 
-Sat Feb  2 13:37:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+Fri Apr 22 23:47:05 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/net/smtp.rb: Fix rdoc title for Net::SMTP
+	* doc/regexp.rdoc (comments): [DOC] terminators cannot appear in
+	  comments.  [ruby-core:74838] [Bug #12256]
 
-Sat Feb  2 13:32:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+Fri Apr 22 23:44:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/net/pop.rb: Fix rdoc title for Net::POP3
+	* extension.rdoc, extension.ja.rdoc: [DOC] Fix some errors.
+	  Renamed files, wrong method names or argument types; the example
+	  GetDBM macro is now updated to the current version of the actual
+	  code.  patch by Marcus Stollsteimer in [ruby-core:74690].
+	  [Bug #12228]
 
-Sat Feb  2 13:00:11 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+Fri Apr 22 23:32:19 2016  Tanaka Akira  <akr@fsij.org>
 
-	* lib/gserver.rb (GServer#start): fix a timing issue.  patch from
-	  Charles Nutter.  [Bug #7081]
+	* test/ruby/test_time_tz.rb: Tests depends on Europe/Moscow removed
+	  to avoid test failures due to the tzdata change.
+	  https://github.com/eggert/tz/commit/8ee11a301cf173afb0c76e0315b9f9ec8ebb9d95
+	  Found by naruse.
 
-Sat Feb  2 12:36:54 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+Tue Apr 19 02:32:50 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/fileutils.rb (copy_entry, wrap_traverse): preserve attributes of
-	  directories on FileUtils.cp_r.  The fix was proposed by Jan
-	  Wedekind.  [Bug #7246]
+	* configure.in (rb_cv_lgamma_r_m0): fix the condition for
+	  lgamma_r(-0.0).  [Bug #12249]
 
-	* test/fileutils/test_fileutils.rb: add a test for above.
+Tue Apr 19 02:32:50 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Feb  2 12:30:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* configure.in (rb_cv_lgamma_r_m0): check if lgamma_r(-0.0)
+	  returns negative infinity.  [Bug #12249]
 
-	* lib/uri/ftp.rb (URI::FTP.new2): nodoc method from r39013 [Bug #7301]
+	* math.c (ruby_lgamma_r): define by the configured result.
 
-Sat Feb  2 12:15:36 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+Tue Apr 19 02:32:50 2016  cremno phobia  <cremno@mail.ru>
 
-	* lib/uri/ftp.rb (URI::FTP.new2): remove the rdoc because it is not
-	  well tested yet.  [Bug #7301]
+	* math.c (ruby_lgamma_r): missing/lgamma_r.c is used on Windows,
+	  since msvcrt does not provide it.
 
-Sat Feb  2 12:07:41 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+	* missing/lgamma_r.c (lgamma_r): fix lgamma(-0.0).
+	  [ruby-core:74823] [Bug #12249]
 
-	* ChangeLog: Forgot to add a reference to the ChangeLog of the
-	  previous commit.
+Tue Apr 19 02:32:50 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Sat Feb  2 12:05:18 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+	* math.c (ruby_lgamma_r): mswin's lgamma_r also seems to be wrong.
+	  cf. [Bug #12249]
 
-	* lib/fileutils.rb: chmod/chmod_R with a string mode (e.g., "+x")
-	  caused error in verbose mode.  [Bug #7373]
+Tue Apr 19 02:32:50 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/fileutils/test_fileutils.rb: add a test for above.
+	* math.c (ruby_tgamma): fix tgamma(-0.0) on mingw.
+	  [ruby-core:74817] [Bug #12249]
 
-Sat Feb  2 11:44:42 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+Tue Apr 19 01:53:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/English.rb: Remove some confusing words from rdoc.  [Bug #7406]
+	* defs/keywords (alias, undef): symbol literals are allowed.
 
-Sat Feb  2 10:17:12 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* parse.y (parse_percent): should parse symbol literals for alias
+	  and undef.  [ruby-dev:47681] [Bug #8851]
 
-	* NEWS: add keyword arguments.
+Mon Apr 18 18:05:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Feb  2 07:45:44 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* struct.c (struct_make_members_list, rb_struct_s_def): member
+	  names should be unique. [ruby-core:74971] [Bug #12291]
 
-	* proc.c (proc_curry): Fix arity check [Bug #5747]
+	* struct.c (struct_make_members_list): extract making member name
+	  list from char* va_list, with creating symbols without
+	  intermediate IDs.
 
-	* test/ruby/test_proc.rb: Test for above
+Mon Apr 18 17:54:40 2016  Joe Swatosh  <joe.swatosh@gmail.com>
 
-Sat Feb  2 07:44:15 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* ext/win32/lib/win32/registry.rb (DeleteValue, DeleteKey): fix
+	  API names.  [ruby-core:74863] [Bug #12264]
 
-	* proc.c: Add {*}_min_max_arity and refactor.
-	  [Bug #7765]
+Mon Apr 18 17:27:30 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_proc.rb: Fix wrong test
+	* compile.c (iseq_peephole_optimize): should not replace the
+	  current target INSN, not to follow the replaced dangling link in
+	  the caller.  [ruby-core:74993] [Bug #11816]
 
-Fri Feb  2 00:46:00 2013  Charlie Somerville  <charlie@charliesomerville.com>
+Mon Apr 18 17:18:25 2016  cremno phobia  <cremno@mail.ru>
 
-	* marshal.c: add security considerations to marshal overview, refer to
-	  overview from Marshal.load documentation [#7759]
+	* cont.c (fiber_initialize_machine_stack_context): fix wrong
+	  _MSC_VER check, should be decimal but not hexadecimal.
+	  [ruby-core:74936] [Bug #12279]
 
-Fri Feb  1 23:04:00 2013  Charlie Somerville  <charlie@charliesomerville.com>
+Mon Apr 18 17:18:25 2016  cremno phobia  <cremno@mail.ru>
 
-	* array.c (rb_ary_dup): make returned array the same class as the original
-	  array [Bug #7768] [ruby-core:51792]
-	* test/ruby/test_array.rb (class TestArray): add test
+	* cont.c (fiber_initialize_machine_stack_context): fix wrong
+	  _MSC_VER check, should be decimal but not hexadecimal.
+	  [ruby-core:74936] [Bug #12279]
 
-Fri Feb  1 16:35:34 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Apr 18 17:08:10 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* marshal.c (r_object0): prohibit setting instance variables of
-	  existing class/module.
+	* vm_core.h (rb_vm_struct): make at_exit a single linked list but
+	  not RArray, not to mark the registered functions by the write
+	  barrier.  based on the patches by Evan Phoenix.
+	  [ruby-core:73908] [Bug #12095]
 
-Fri Feb  1 14:34:29 2013  Shugo Maeda  <shugo@ruby-lang.org>
+Mon Apr 18 16:56:31 2016  Benoit Daloze  <eregontp@gmail.com>
 
-	* ext/readline/extconf.rb, ext/readline/readline.c: check
-	  RL_PROMPT_START_IGNORE and RL_PROMPT_END_IGNORE directly in
-	  readline.c.  Patch by Zachary Scott.  [Bug #7397] [ruby-core:49561]
+	* thread.c (update_coverage): Do not track coverage in loaded files
+	  after Coverage.result. Avoids out-of-bounds access. [Bug #12237]
 
-Thu Jan 31 21:55:00 2013  Charlie Somerville  <charlie@charliesomerville.com>
+	* ext/coverage/coverage.c (coverage_clear_result_i): document.
 
-	* marshal.c (marshal_load): Add documentation warning against using
-	  Marshal.load on untrusted data [Bug #7759] [ruby-core:51765]
+Mon Apr 18 16:33:50 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Jan 31 16:33:27 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/date/date_core.c (Init_date_core): [DOC] fix misplaced doc
+	  of DateTime.  [ruby-core:74729] [Bug #12233]
 
-	* parse.y (local_push_gen): no assigned but unused variable warnings
-	  in eval as well as -e.  [Feature #7730] [ruby-core:51580]
+Mon Apr 18 13:48:05 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Jan 30 12:30:08 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* cygwin/GNUmakefile.in (MSYS2_ARG_CONV_EXCL_PARAM):
+	  * add missing parentheses and remove double quotes.
+	  * rename to get rid of recursive references.
+	  * as --excludes-dir option is for a path name, its argument
+	    should be converted.
+	  [ruby-dev:49526] [Bug #12199]
 
-	* test/ruby/test_signal.rb (test_trap_puts): Fix typo. "sync"
-	  should be "STDOUT.sync".
+Mon Apr 18 13:48:05 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Jan 31 15:39:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* common.mk (TEST_EXCLUDES, EXCLUDE_TESTFRAMEWORK): use full spell
+	  long option.
 
-	* string.c (rb_str_aset_m): Documentation for String#[]= fix
-	  Raises an IndexError if Regexp match is out of range.
-	  Github fixes #243 Patch by Dmtiriy Budnik
+	* cygwin/GNUmakefile.in (MSYS2_ARG_CONV_EXCL): suppress path name
+	  conversions by msys2.  [ruby-dev:49525] [Bug #12199]
 
-Thu Jan 31 13:54:44 2013  Shugo Maeda  <shugo@ruby-lang.org>
+Mon Apr 18 13:48:05 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/raddrinfo.c (rsock_unix_sockaddr_len): return
-	  sizeof(sa_family_t) if path is empty.  see "Autobind Feature" in
-	  unix(7) for details.
+	* test/lib/test/unit.rb (Options#non_options): make regexp name
+	  options prefixed with "!" negative filters.
 
-	* ext/socket/lib/socket.rb (unix_socket_abstract_name?): treat an
-	  empty path as an abstract name.
+	* common.mk (TEST_EXCLUDES): use negative filter to exclude memory
+	  leak tests.  -x option excludes test files, not test methods.
 
-	* test/socket/test_unix.rb: related test.
+Sun Apr 17 04:30:13 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Jan 30 20:58:50 2013  Tanaka Akira  <akr@fsij.org>
+	* parse.y (parse_ident): allow keyword arguments just after a
+	  method where the same name local variable is defined.
+	  [ruby-core:73816] [Bug#12073]
 
-	* ext/socket/basicsocket.c (bsock_getsockname): ignore truncated
-	  part of socket address.
-	  (bsock_getpeername): ditto.
-	  (bsock_local_address): ditto.
-	  (bsock_remote_address): ditto.
+Sun Apr 17 04:20:40 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/unixsocket.c (unix_path): ditto.
-	  (unix_addr): ditto.
-	  (unix_peeraddr): ditto.
+	* eval.c (setup_exception): set the cause only if it is explicitly
+	  given or not set yet.  [Bug #12068]
 
-	* ext/socket/init.c (cloexec_accept): ditto.
+Sat Apr 16 00:56:45 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Jan 30 17:08:20 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* thread.c (rb_thread_setname): defer setting native thread name
+	  set in initialize until the native thread is created.
+	  [ruby-core:74963] [Bug #12290]
 
-	* include/ruby/win32.h (fstat): revert r37337, which uses _fstati64()
-	  instead of fstati64() on mingw32.  [Bug #7276]
+Fri Apr 15 21:10:00 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Wed Jan 30 15:26:37 2013  Shugo Maeda  <shugo@ruby-lang.org>
+	* lib/irb/ext/save-history.rb: Fix NoMethodError when method is not defined.
 
-	* ext/socket/unixsocket.c (rsock_init_unixsock): use rb_inspect()
-	  because rb_sys_fail_str() fails if its argument contains NUL.
+Fri Apr 15 14:52:06 2016  Elliot Winkler  <elliot.winkler@gmail.com>
 
-	* test/socket/test_unix.rb: related test.
+	* lib/forwardable.rb (def_instance_delegator) fix delegating to
+	  'args' and 'block', clashing with local variables in generated
+	  methods.  [ruby-core:72579] [Bug #11916]
 
-Wed Jan 30 15:21:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/forwardable.rb (def_single_delegator): ditto.
 
-	* vm_dump.c (rb_vm_bugreport): show the most important message, Crash
-	  Report log information, first.
+Fri Apr 15 14:27:48 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Wed Jan 30 15:00:05 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* lib/irb/ext/save-history.rb: suppress warning: method redefined;
+	  discarding old save_history=.
 
-	* array.c (rb_ary_bsearch): Raise TypeError on bad return from block
+Tue Apr 12 16:15:39 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* range.c (range_bsearch): ditto
+	* configure.in: improve ICC (Intel C Compiler) support.
 
-	* test/ruby/test_array.rb (class): Test for above
+	* configure.in (CXX): The name of icc's c++ compiler is `icpc`.
 
-	* test/ruby/test_range.rb (class): ditto
+	* configure.in (warnings): Add `-diag-disable=2259` to suppress
+	  noisy warnings: "non-pointer conversion from "..." to "..." may
+	  lose significant bits".
 
-Wed Jan 30 14:46:28 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* configure.in (optflags): Add `-fp-model precise` like -fno-fast-math.
 
-	* range.c: Restrict bsearch to integers [#7728]
+	* lib/mkmf.rb: icc supports -Werror=division-by-zero
+	  and -Werror=deprecated-declarations, but doesn't support
+	  -Wdivision-by-zero and -Wdeprecated-declarations.
 
-	* test/ruby/test_range.rb: Test for above
+Tue Apr 12 14:29:01 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Wed Jan 30 14:10:52 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* ext/openssl/extconf.rb: check SSL_CTX_set_next_proto_select_cb
+	  function rather than OPENSSL_NPN_NEGOTIATED macro. it exists
+	  even if it is disabled by OpenSSL configuration.
+	  [ruby-core:74384] [Bug #12182]
 
-	* array.c (rb_ary_bsearch): Return enumerator if no block [#7725]
+	* ext/openssl/ossl_ssl.c: update #ifdef(s) as above.
 
-	* range.c (range_bsearch): ditto
+	* test/openssl/test_ssl.rb: skip NPN tests if NPN is disabled.
 
-	* test/ruby/test_array.rb: Test for above
+Tue Apr 12 14:27:04 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_range.rb: ditto
+	* lib/uri/http.rb (URI::HTTP#initialize): [DOC] fix example,
+	  missing mandatory arguments.  [ruby-core:74540] [Bug #12215]
 
-Wed Jan 30 13:53:43 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+Thu Apr  7 01:07:02 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/matrix.rb: Take conjugate for inner product
-	  [rubyspec:5a01ad5719f2] [ruby-dev:46101]
+	* sprintf.c (rb_str_format): fix buffer overflow, length must be
+	  greater than precision.  reported by William Bowling <will AT
+	  wbowling.info>.
 
-Wed Jan 30 13:22:05 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Apr  6 00:33:45 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* parse.y (local_push_gen): warn assigned but unused variables also in
-	  toplevel, except for -e option.  [Feature #7730] [ruby-core:51580]
+	* lib/rubygems/security.rb (DIGEST_ALGORITHM, KEY_ALGORITHM):
+	  should check same name as the used constants.
+	  [ruby-core:72674] [Bug #11940]
 
-Wed Jan 30 13:17:53 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Apr  4 00:31:51 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* cont.c (cont_restore_thread): svar should be separate per fibers.
-	  [ruby-core:51331] [Bug #7678]
+	* compile.c (compile_massign_lhs): when index ends with splat,
+	  append rhs value to it like POSTARG, since VM_CALL_ARGS_SPLAT
+	  splats the last argument only.  [ruby-core:72777] [Bug #11970]
 
-Wed Jan 30 07:15:04 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+Sat Apr  2 02:07:29 2016  Seiei Miyagi  <hanachin@gmail.com>
 
-	* re.c (reg_operand): Simplify and reuse error handling [Bug #7539]
+	* ext/ripper/lib/ripper/lexer.rb (on_heredoc_dedent): Fix
+	  Ripper.lex error in dedenting squiggly heredoc.  heredoc tree is
+	  also an array of Elem in the outer tree.  [Fix GH-1234]
 
-	* test/ruby/test_regexp.rb: Test for above
+Wed Mar 30 02:28:13 2016  Eric Wong  <e@80x24.org>
 
-Wed Jan 30 07:00:16 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* thread_pthread.c (setup_communication_pipe): delay setting owner
+	  (rb_thread_create_timer_thread): until thread creation succeeds
+	  [ruby-core:72590] [Bug #11922]
 
-	* object.c: Improve error for failed implicit conversions [Bug #7539]
+Wed Mar 30 02:20:06 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* error.c: Adapt rdoc
+	* localeinit.c (rb_locale_charmap_index): fix prototype.
+	  patched by Andreas Schwab [Bug #12218]
 
-	* test/ruby/test_object.rb: Test for above
+Wed Mar 30 02:20:06 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Tue Jan 29 21:40:12 2013  Tanaka Akira  <akr@fsij.org>
+	* thread_pthread.c (reserve_stack): fix reserving position where
+	  the stack growing bottom to top. [Bug #12118]
 
-	* lib/net/http/generic_request.rb (encode_multipart_form_data): remove
-	  tempfile explicitly.
+Wed Mar 30 02:17:33 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Jan 29 19:27:18 2013  Benoit Daloze  <eregontp@gmail.com>
+	* win32/file.c (rb_readlink): drop garbage after the substitute
+	  name, as rb_w32_read_reparse_point returns the expected buffer
+	  size but "\??\" prefix is dropped from the result.
 
-	* array.c: Improve documentation about
-	  comparison by hash for concerned methods. [ruby-core:51266]
+	* win32/win32.c (w32_readlink): ditto, including NUL-terminator.
 
-Tue Jan 29 17:03:28 2013  Koichi Sasada  <ko1@atdot.net>
+Wed Mar 30 02:17:33 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* vm_backtrace.c: fix issue of rb_debug_inspector_open().
-	  The order of making binding should be stack (frame) top to bottom.
-	  [Bug #7635]
-	  And also fix issue of collecting klass. Collecting klass is same
-	  as TracePoint#defined_class.
-	  (previous version, it returns T_ICLASS (internal objects).
+	* win32/win32.c (fileattr_to_unixmode, rb_w32_reparse_symlink_p): volume
+	  mount point should be treated as directory, not symlink.
+	  [ruby-core:72483] [Bug #11874]
 
-	* test/-ext-/debug/test_debug.rb: add a test.
+	* win32/win32.c (rb_w32_read_reparse_point): check the reparse point is
+	  a volume mount point or not.
 
-	* ext/-test-/debug/extconf.rb, init.c, inspector.c: ditto.
+	* win32/file.c (rb_readlink): follow above change (but this pass won't
+	  be used).
 
-	* vm_backtrace.c: remove magic number and add enum CALLER_BINDING_*.
+Wed Mar 30 01:32:14 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-	* vm_backtrace.c, include/ruby/debug.h: add new C api (experimental)
-	  rb_debug_inspector_frame_self_get().
+	* test/-ext-/time/test_new.rb (test_timespec_new): change a gmtoff
+	  test to a better one that does not depend on whether the current
+	  time is in summer time or not.
 
-	* vm.c, vm_core.h, vm_trace.c: move decl. of
-	  rb_vm_control_frame_id_and_class() and constify first parameter.
+Wed Mar 30 01:32:14 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Tue Jan 29 16:50:58 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/-ext-/time/test_new.rb (test_timespec_new): Time#gmtoff values
+	  are the same only when both or neither of the Time objects are in
+	  summer time (daylight-saving time).
 
-	* vm_trace.c (rb_tracepoint_enable, rb_tracepoint_disable): check safe
-	  level as well as set_trace_func.
+Wed Mar 30 01:30:54 2016  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
 
-	* vm_trace.c (set_trace_func, thread_{add,set}_trace_func_m): check
-	  safe level as well as 1.8.
+	* lib/rubygems/test_case.rb: Fix test on Windows for inconsistent temp path.
+	  https://github.com/rubygems/rubygems/pull/1554
+	  [Bug #12193][ruby-core:74431]
 
-Tue Jan 29 16:49:19 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Mar 30 01:25:46 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* proc.c (rb_mod_method_arity): return original arity of the method if
-	  aliased because of visibility change, like as Method#arity.
+	* string.c (str_new_frozen): if the given string is embeddedable
+	  but not embedded, embed a new copied string. [Bug #11946]
 
-Tue Jan 29 12:05:18 2013  Tanaka Akira  <akr@fsij.org>
+Wed Mar 30 01:23:57 2016  Marcus Stollsteimer  <sto.mar@web.de>
 
-	* test/ruby/test_marshal.rb: remove temporally files early.
+	* doc/extension.ja.rdoc: Fix RDoc markup in doc/extension*.rdoc.
+	  [ci skip][Bug #12143][ruby-core:74143]
+	* doc/extension.rdoc: ditto.
 
-	* test/ruby/test_process.rb: ditto.
+Wed Mar 30 01:00:30 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/psych/test_exception.rb: ditto.
+	* proc.c (proc_binding): proc from symbol can not make a binding.
+	  [ruby-core:74100] [Bug #12137]
 
-Tue Jan 29 09:26:20 2013  Shugo Maeda  <shugo@ruby-lang.org>
+Wed Mar 30 00:54:38 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/socket.c (sock_s_pack_sockaddr_un): calculate the
-	  correct address length of an abstract socket.
+	* include/ruby/win32.h (O_SHARE_DELETE): change to fit Fixnum
+	  limit.  [ruby-core:74285] [Bug #12171]
 
-	* test/socket/test_unix.rb: related test.
+Wed Mar 30 00:52:47 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Mon Jan 28 18:02:16 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/net/imap/test_imap.rb (test_idle_timeout): Because of the
+	  timeout specified in "imap.idle(0.2)", there is no gurantee that
+	  the server thread has done all the work before the client thread
+	  performs the assertions. It depends on the thread scheduling.
+	  Add checks to avoid false positives (on AIX, particularly).
 
-	* vm_backtrace.c (rb_debug_inspector_frame_{class,binding,iseq}_get):
-	  use long as index as well as RARRAY_LEN().
+Wed Mar 30 00:41:42 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Mon Jan 28 17:51:38 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/socket/test_socket.rb (test_udp_recvmsg_truncation):
+	  AIX does not set the MSG_TRUNC flag for a message partially read
+	  by recvmsg(2) with the MSG_PEEK flag set.
 
-	* test/ruby/envutil.rb (assert_separately): imply no core dump.
+Wed Mar 30 00:00:47 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Jan 28 12:32:31 2013  Tanaka Akira  <akr@fsij.org>
+	* doc/extension.rdoc, doc/extension.ja.rdoc: add editor local
+	  variables, with commenting out by :enddoc: directives which are
+	  just ignored unless code object mode.  [Bug #12111]
 
-	* ext/fcntl/fcntl.c: update document.  use "file descriptor" instead
-	  of "file handle" because it is not used other Ruby documents and
-	  it is confusing with Windows file handle.
-	  correct F_DUPFD behavior.
+Wed Mar 30 00:00:47 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sat Jan 26 22:39:12 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* doc/extension.ja.rdoc: removed rendering error caused by editor specific
+	  configuration on http://docs.ruby-lang.org/en/trunk/extension_rdoc.html .
+	  [Bug #12111][ruby-core:73990]
 
-	* marshal.c (w_object): dump instance variables of the result of
-	  marshal_dump not the original object.  [ruby-core:51163] [Bug #7627]
+Tue Mar 29 23:54:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* complex.c (nucomp_marshal_dump): need to copy instance variables.
+	* object.c (rb_mod_const_get): make error message at uninterned
+	  string consistent with symbols.  [ruby-dev:49498] [Bug #12089]
 
-	* rational.c (nurat_marshal_dump): ditto.
+Tue Mar 29 23:45:24 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Jan 26 13:35:56 2013  Eric Hodel  <drbrain@segment7.net>
+	* dir.c (push_pattern, push_glob): deal with read paths as UTF-8
+	  to stat later, on Windows as well as OS X.
+	  [ruby-core:73868] [Bug #12081]
 
-	* ext/fcntl/fcntl.c:  Document Fcntl constants
+Tue Mar 29 23:36:49 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Jan 26 12:54:40 2013  Eric Hodel  <drbrain@segment7.net>
+	* ext/extmk.rb: add cygwin case, nothing excluded.
+	  [ruby-core:73806] [Bug#12071]
 
-	* hash.c (rb_env_size):  Restored documentation for ENV.size
+Tue Mar 29 23:10:47 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/drb/drb.rb:  Documented DRb::DRb#run.
+	* iseq.c (rb_iseq_mark): mark parent iseq to prevent dynamically
+	  generated iseq by eval from GC.  [ruby-core:72620] [Bug #11928]
 
-	* lib/erb.rb (class ERB):  Improved documentation of ERb.
+Tue Mar 29 22:56:44 2016  Eric Wong  <e@80x24.org>
 
-	* transcode.c:  Documented Encoding::Converter constants.
+	* lib/resolv.rb (Resolv::IPv6.create): avoid modifying frozen
+	* test/resolv/test_dns.rb (test_ipv6_create): test for above
+	  [Bug #11910] [ruby-core:72559]
 
-Sat Jan 26 10:09:57 2013  Eric Hodel  <drbrain@segment7.net>
+Tue Mar 29 22:31:48 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* lib/webrick/accesslog.rb:  Improved WEBrick documentation.
-	* lib/webrick/cgi.rb:  ditto.
-	* lib/webrick/config.rb:  ditto.
-	* lib/webrick/cookie.rb:  ditto.
-	* lib/webrick/httpauth/authenticator.rb:  ditto.
-	* lib/webrick/httpauth/basicauth.rb:  ditto.
-	* lib/webrick/httpauth/digestauth.rb:  ditto.
-	* lib/webrick/httpproxy.rb:  ditto.
-	* lib/webrick/httprequest.rb:  ditto.
-	* lib/webrick/httpresponse.rb:  ditto.
-	* lib/webrick/https.rb:  ditto.
-	* lib/webrick/httpserver.rb:  ditto.
-	* lib/webrick/httpservlet/cgihandler.rb:  ditto.
-	* lib/webrick/httpservlet/filehandler.rb:  ditto.
-	* lib/webrick/httpservlet/prochandler.rb:  ditto.
-	* lib/webrick/httputils.rb:  ditto.
-	* lib/webrick/httpversion.rb:  ditto.
-	* lib/webrick/log.rb:  ditto.
-	* lib/webrick/server.rb:  ditto.
-	* lib/webrick/ssl.rb:  ditto.
-	* lib/webrick/utils.rb:  ditto.
-	* lib/webrick/version.rb:  ditto.
+	* range.c (range_eqq): revert r11113 because rb_call_super() is
+	  called in range_include() and thus r11113 doesn't work when the
+	  receiver Range object consists of non linear objects such as Date
+	  objects.
+	  [ruby-core:72908] [Bug #12003]
 
-Sat Jan 26 08:29:33 2013  Shugo Maeda  <shugo@ruby-lang.org>
+Tue Mar 29 22:26:55 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/raddrinfo (rsock_unix_sockaddr_len): renamed from
-	  rsock_unixpath_len, because it returns not the length of the path,
-	  but the length of a socket address for the path.
+	* vm_eval.c (rb_check_funcall_with_hook): also should call the
+	  given hook before returning Qundef when overridden respond_to?
+	  method returned false.  [ruby-core:73556] [Bug #12030]
 
-Sat Jan 26 01:12:23 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Tue Mar 29 22:08:36 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* test/ruby/test_io.rb (test_ioctl_linux): skip if a platform is
-	  not x86 because linux ioctl request number depend on cpu arch.
-	  At least, alpha, mips, sparc and ppc have a different number.
-	  [Bug #7718] [ruby-core:51544]
+	* compile.c (iseq_peephole_optimize): don't apply tailcall
+	  optimization to send/invokesuper instructions with blockiseq.
+	  This is a follow-up to the changes in r51903; blockiseq is now
+	  the third operand of send/invokesuper instructions.
+	  [ruby-core:73413] [Bug #12018]
 
-Fri Jan 25 19:14:24 2013  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+Tue Mar 29 21:22:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/win32ole/win32ole.c: use TlsAlloc instead of __declspec(thread)
-	  to avoid SEGV if win32ole.so loaded with LoadLibrary in Windows
-	  XP or earlier.
+	* parse.y (xstring): reset heredoc indent after dedenting,
+	  so that following string literal would not be dedented.
+	  [ruby-core:72857] [Bug #11990]
 
-Fri Jan 25 16:47:31 2013  Shugo Maeda  <shugo@ruby-lang.org>
+Tue Mar 29 21:22:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/raddrinfo.c (rsock_unixpath_len, init_unix_addrinfo),
-	  ext/socket/unixsocket.c (unixsock_connect_internal,
-	  rsock_init_unixsock): calculate the correct address length of
-	  an abstract socket.  Without this fix, sizeof(struct sockaddr_un)
-	  is specified as the length of an abstract socket for bind(2) or
-	  connect(2), so the address of the socket is filled with extra NUL
-	  characters.  See unix(7) for details.
+	* parse.y (string1): reset heredoc indent fore each string leteral
+	  so that concatenated string would not be dedented.
+	  [ruby-core:72857] [Bug #11990]
 
-	* ext/socket/lib/socket.rb (unix_server_socket): don't access the
-	  file system if the platform is Linux and path starts with NUL,
-	  which means that the socket is an abstract socket.
+Tue Mar 29 21:18:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/socket/test_unix.rb: related test.
+	* parse.y (parser_here_document): update indent for each line in
+	  indented here document with single-quotes.
+	  [ruby-core:72479] [Bug #11871]
 
-Fri Jan 25 13:02:27 2013  Eric Hodel  <drbrain@segment7.net>
+Tue Mar 29 21:03:40 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/drb/drb.rb:  Updated documentation based on patch from Vincent
-	  Batts.  [ruby-trunk - Bug #7714]
-	* lib/drb/ssl.rb:  ditto.
+	* symbol.h (is_attrset_id): ASET is an attrset ID.  fix
+	  unexpected safe call instead of an ordinary ASET.
 
-Fri Jan 25 12:23:29 2013  Eric Hodel  <drbrain@segment7.net>
+Tue Mar 29 21:01:07 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* lib/drb/drb.rb:  Improved documentation by adding or hiding methods.
-	* lib/drb/eq.rb:  ditto.
-	* lib/drb/extserv.rb:  ditto.
-	* lib/drb/gw.rb:  ditto.
-	* lib/drb/invokemethod.rb:  ditto.
-	* lib/drb/observer.rb:  ditto.
-	* lib/drb/ssl.rb:  ditto.
-	* lib/drb/timeridconv.rb:  ditto.
-	* lib/drb/unix.rb:  ditto.
+	* doc/syntax/calling_methods.rdoc: fix old operator for safe navigation
+	  operator. [ci skip][fix GH-1182] Patch by @dougo
 
-	* sample/drb/gw_cu.rb:  Fixed bug in DRb gateway sample.
+Tue Mar 29 18:49:54 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Jan 25 12:01:56 2013  Koichi Sasada  <ko1@atdot.net>
+	* lib/ostruct.rb (freeze): define deferred accessors before
+	  freezing to get rid of an error when just reading frozen
+	  OpenStruct.
 
-	* vm_core.h: modify a comment about rb_iseq_t::local_size.
-	  A patch by davidbalbert (David Albert) [Bug #6750]
+Tue Mar 29 18:49:54 2016  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
-Fri Jan 25 10:36:31 2013  Eric Hodel  <drbrain@segment7.net>
+	* lib/ostruct.rb: Fix new_ostruct_member to correctly avoid
+	  redefinition [#11901]
 
-	* lib/mkmf.rb:  Documented MakeMakefile constants.  Hide implementation
-	  details from RDoc
+Tue Mar 29 17:54:17 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Jan 25 10:04:07 2013  Eric Hodel  <drbrain@segment7.net>
+	* lib/ostruct.rb (OpenStruct): make respond_to? working on
+	  just-allocated objects for workaround of Psych.
+	  [ruby-core:72501] [Bug #11884]
 
-	* lib/rubygems/compatibility.rb:  Hide compatibility shims from RDoc
+Tue Mar 29 17:04:35 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rubygems/config_file.rb:  Hide RbConfig use from RDoc
+	* vm_eval.c (rb_f_catch): [DOC] fix malformed RDoc syntax, "+...+"
+	  cannot enclose non-identifier characters.
+	  a patch by Sebastian S in [ruby-core:74278].  [Bug#12170]
 
-	* lib/rubygems/test_case.rb:  Added note to use realpath when 1.8
-	  support is dropped.
+Tue Mar 29 17:03:28 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Fri Jan 25 09:14:43 2013  Eric Hodel  <drbrain@segment7.net>
+	* test/-ext-/float/test_nextafter.rb: In AIX,
+	  nextafter(+0.0,-0.0)=+0.0, and nextafter(-0.0,+0.0)=-0.0,
+	  but they should return -0.0 and +0.0, respectively. This is
+	  a known bug in nextafter(3) on AIX, so skip related tests.
 
-	* lib/rdoc/generator/darkfish.rb:  Fixed debug message.  RDoc bug #174
-	  by Thomas Leitner.
+Tue Mar 29 16:54:14 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rdoc/store.rb:  Fixed deletion of ri attribute data when a class
-	  was loaded then saved.  RDoc bug #171 by Thomas Leitner.
-	* test/rdoc/test_rdoc_store.rb:  Test for above.
+	* string.c (enc_succ_alnum_char): try to skip an invalid character
+	  gap between GREEK CAPITAL RHO and SIGMA.
+	  [ruby-core:74478] [Bug #12204]
 
-Thu Jan 24 19:55:25 2013  Shota Fukumori  <her@sorah.jp>
+Tue Mar 29 16:45:58 2016  Victor Nawothnig  <Victor.Nawothnig@gmail.com>
 
-	* NEWS (yaml): Write about bundled libyaml.
+	* parse.y (parse_numvar): NTH_REF must be less than a half of
+	  INT_MAX, as it is left-shifted to be ORed with back-ref flag.
+	  [ruby-core:74444] [Bug#12192] [Fix GH-1296]
 
-Thu Jan 24 16:54:34 2013  Eric Hodel  <drbrain@segment7.net>
+Tue Mar 29 16:44:54 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* doc/syntax/calling_methods.rdoc:  Added a Method Lookup section.
-	* doc/syntax/refinements.rdoc (Method Lookup):  Clarified that
-	  refinement methods are looked up in classes, not instances.
+	* enc/trans/JIS: update Unicode's notice. [Bug #11844]
 
-Thu Jan 24 16:49:17 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+Tue Mar 29 16:41:27 2016  Eric Hodel  <drbrain@segment7.net>
 
-	* enum.c (enum_zip): Fix error message
+	* marshal.c (r_object0):  raise ArgumentError when linking to undefined
+	  object.
 
-	* array.c (take_items): Same, for Array#zip
+Tue Mar 29 16:41:27 2016  Eric Hodel  <drbrain@segment7.net>
 
-Thu Jan 24 16:47:26 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* marshal.c (r_object0): Fix Marshal crash for corrupt extended object.
 
-	* enumerator.c (lazy_zip): raise error for bad arguments
-	  [Bug #7706]
+Tue Mar 29 16:40:48 2016  Eric Wong  <e@80x24.org>
 
-Thu Jan 24 16:05:08 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* ext/openssl/ossl_ssl.c (ossl_sslctx_setup): document as MT-unsafe
+	  [ruby-core:73803] [Bug #12069]
 
-	* enumerator.c: Optimize Lazy#zip when passed only arrays
-	  [Bug #7706]
+Tue Mar 29 16:29:44 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Thu Jan 24 15:21:17 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* insns.def (opt_mod): show its method name on ZeroDivisionError.
+	  [Bug #12158]
 
-	* enumerator.c: Fix state handling for Lazy#zip,{drop_take}{_while}
-	  [bug #7696] [bug #7691]
+Tue Mar 29 16:25:27 2016  Anthony Dmitriyev  <antstorm@gmail.com>
 
-Thu Jan 24 11:43:47 2013  Narihiro Nakamura  <authornari@gmail.com>
+	* net/ftp.rb: add NullSocket#closed? to fix closing not opened
+	  connection.  [Fix GH-1232]
 
-	* eval.c (f_current_dirname): Add documentation about "__dir__
-	  returns always an absolute path". [Bug #7729]
+Tue Mar 29 16:12:08 2016  Koichi ITO  <koic.ito@gmail.com>
 
-Thu Jan 24 10:28:30 2013  Eric Hodel  <drbrain@segment7.net>
+	* variable.c: Added documentation about order of `Module#constants`
+	  [ci skip][Bug #12121][ruby-dev:49505][fix GH-1301]
 
-	* NEWS (RDoc):  Added mention of page support and markdown support.
+Tue Mar 29 16:02:26 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Thu Jan 24 09:40:13 2013  Eric Hodel  <drbrain@segment7.net>
+	* test/ruby/test_process.rb (test_execopts_gid): Skip a test
+	  that is known to fail on AIX. AIX allows setgid to
+	  a supplementary group, but Ruby does not allow the "-e"
+	  option when setgid'ed, so the test does not work as intended.
 
-	* doc/syntax/refinements.rdoc:  Added refinements document based on
-	  the specification from the wiki.
-	* doc/syntax.rdoc:  Added link to refinements document.
+Tue Mar 29 15:58:18 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Wed Jan 23 16:29:09 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/socket/test_addrinfo.rb (test_ipv6_address_predicates):
+	  IN6_IS_ADDR_V4COMPAT and IN6_IS_ADDR_V4MAPPED are broken
+	  on AIX, so skip related tests.
 
-	* win32/win32.c (rb_w32_spawn, rb_w32_aspawn_flags): fix missing
-	  initialization.  pointed out by phasis68 (Heesob Park) at
-	  [ruby-core:51579].  [Bug #7721]
+Tue Mar 29 15:31:06 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Wed Jan 23 16:18:04 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (MakeMakefile#try_constant): fix for large unsigned.
-
-	* lib/mkmf.rb (MakeMakefile#try_constant): fix for larger constants.
-
-	* test/mkmf/test_constant.rb: tests for try_constant.
-	  TODO: define check_constant and use it.
-
-Wed Jan 23 13:35:37 2013  Koichi Sasada  <ko1@atdot.net>
-
-	* thread_pthread.c (ruby_init_stack): ignore `STACK_END_ADDRESS'
-	  if Ruby interpreter is running on co-routine.
-	  [Feature #2294]
-	  https://bugs.ruby-lang.org/issues/2294#note-18
-
-Wed Jan 23 12:28:22 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_spawn, rb_w32_aspawn_flags): check the results
-	  of acp_to_wstr() which can return NULL.  [ruby-core:51557] [Bug #7721]
-
-Wed Jan 23 10:40:49 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/assignment.rdoc (Implicit Array Assignment):  Clarify
-	  that "left-hand side" means "of the assignment".  Suggested by Jorge
-	  Dias.
-	* doc/syntax/assignment.rdoc (Multiple Assignment):  ditto.
-
-Wed Jan 23 10:34:47 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/assignment.rdoc (Local Variables and Methods):  Fixed
-	  example showing caching of a method's results into a local variable.
-	  Added not about using an explicit receiver to call a method that
-	  matches a local variable.  Suggested by markov_twain on twitter.
-
-Wed Jan 23 10:20:08 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/README:  Fixed typo.  Patch by Pradeep Sahoo.
-	  Fixes #240 on github
-
-Wed Jan 23 09:53:39 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/servlet.rb:  Fixed display of site and home documentation.
-	  Fixes rdoc issue #170 by Thomas Leitner.
-	* test/rdoc/test_rdoc_servlet.rb:  Test for above.
-
-	* lib/rdoc/code_object.rb:  Split #initialize_visibility from
-	  #initialize for reuse when loading a stored object.
-	  Fixes rdoc issue #171 by Thomas Leitner.
-
-	* lib/rdoc/any_method.rb:  Initialize visibility for #display?  For
-	  rdoc issue #171
-	* lib/rdoc/attr.rb:  ditto.
-	* lib/rdoc/class_module.rb:  ditto.
-	* lib/rdoc/top_level.rb:  ditto.
-	* test/rdoc/test_rdoc_any_method.rb:  Test for above.
-	* test/rdoc/test_rdoc_attr.rb:  ditto.
-	* test/rdoc/test_rdoc_class_module.rb:  ditto.
-	* test/rdoc/test_rdoc_constant.rb:  ditto.
-	* test/rdoc/test_rdoc_top_level.rb:  ditto.
-
-Wed Jan 23 06:43:26 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/test_case.rb:  Use Dir.tmpdir for rubygems tests instead
-	  of ./tmp/test.  Fixes [ruby-trunk - Bug #7717]
-
-Tue Jan 22 22:58:03 2013  Akinori MUSHA  <knu@iDaemons.org>
-
-	* misc/ruby-electric.el (ruby-electric-curlies): Fix the bug where
-	  an open curly inserted in a string is always replaced with a
-	  hash sign.
-
-Mon Jan 21 15:41:33 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* tool/mkconfig.rb: BASERUBY is transient at core build.
-
-Mon Jan 21 13:51:21 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb ($extmk): traverse parent directories for the case
-	  srcdir is a symlink.
-
-Sun Jan 20 23:55:37 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* marshal.c (w_object, r_object0): separate respond_to checks and
-	  calling, and get back to the old behavior for 2.0.  [Bug #7564]
-
-Sun Jan 20 22:24:28 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* tool/vpath.rb (VPath#def_options): hack for msys make, which
-	  converts a command line argument to non-msys command seems like a
-	  path list automagically.  [Bug #7710] [ruby-core:51489]
-
-Sat Jan 19 11:35:00 2013  Zachary Scott  <zachary@zacharyscott.net>
-
-	* struct.c (Struct.new): Document Struct.new with block
-	  Patch by Hiroyuki Iwatsuki [Bug #7674]
-
-Sat Jan 19 09:52:46 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/miscellaneous.rdoc:  Added section on defined?
-
-Sat Jan 19 09:27:31 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/assignment.rdoc (Local Variables and Methods):  Made it
-	  more clear that local variables are created by the parser, not
-	  execution.  Thanks to John Hawthorn.
-
-Sat Jan 19 09:15:58 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/assignment.rdoc:  Improved links
-	* doc/syntax/methods.rdoc:  ditto.
-
-	* doc/syntax.rdoc:  Added link to assignment document
-
-Sat Jan 19 08:47:33 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/assignment.rdoc:  Added a syntax document on assignment.
-
-Fri Jan 18 14:11:01 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/methods.rdoc:  Added Array Decomposition.
-
-Fri Jan 18 12:54:21 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* tool/rbinstall.rb (gem): Gem.ensure_gem_subdirectories makes
-	  subdirectories group-writable, so make them with $dir_mode.
-
-Fri Jan 18 11:24:33 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/win32ole/win32ole.c (ole_initialize): uninitialize OLE at thread
-	  ends.  [Bug #2618] [ruby-core:27634]
-
-	* ext/win32ole/win32ole.c (ole_initialize): initialize OLE for each
-	  threads.  [Bug #2618] [ruby-core:27634]
-
-Thu Jan 17 22:10:35 2013  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rubygems/ext/builder.rb (Gem::Ext::Builder.make): Remove
-	  .time dependency from *.rb install target. It causes needless
-	  *.rb install. [Bug #7698] [ruby-core:51437]
-	  Reported by Tadashi Saito. Thanks!!!
-	* test/rubygems/test_gem_installer.rb
-	  (TestGemInstaller#test_install_extension_and_script): Add a test
-	  for the above change.
-
-Thu Jan 17 21:08:20 2013  Kouhei Sutou  <kou@cozmixng.org>
-
-	* eval.c: Fix a typo in ruby_finalize() documentation.
-
-Thu Jan 17 20:28:18 2013  Benoit Daloze  <eregontp@gmail.com>
-
-	* object.c: Typo in Kernel#hash documentation.
-	  Patch by zed_0xff [Github Fixes #237]
-
-Thu Jan 17 10:48:56 2013  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/scalar_scanner.rb: use constants rather than
-	  calculating Inf and NaN.
-
-Thu Jan 17 10:21:05 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/miscellaneous.rdoc:  Added Ending an Expression and
-	  indentation.
-
-Thu Jan 17 09:30:21 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/installer.rb:  Untaint string when checking output
-	  for $SAFE=1
-
-	* lib/rubygems/specification.rb:  Keep previously loaded specs as
-	  active.  This prevents double loading when refreshing the gem list.
-	* test/rubygems/test_gem.rb:  Test for above
-
-	* lib/rubygems.rb:  Bump version to 2.0.0.rc.2
-
-Thu Jan 17 09:08:37 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/control_expressions.rdoc:  Added ? : ternary if
-
-Thu Jan 17 08:36:04 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/miscellaneous.rdoc:  Added documentation for alias, undef,
-	  BEGIN, END.
-	* doc/syntax/modules_and_classes.rdoc (Constants):  Fixed unwrapped
-	  paragraph with trailing whitespace.
-	* doc/syntax/modules_and_classes.rdoc (Scope):  Added section pointing
-	  to alias and undef documentation.
-	* doc/syntax.rdoc:  Added link to miscellaneous section.
-
-Thu Jan 17 07:50:26 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/control_expressions.rdoc (Flip-Flop):  Added a section on
-	  the flip-flop.
-
-Thu Jan 17 06:59:51 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/control_expressions.rdoc (if Expressions):  Fixed markup
-	  error.  Fixes #235 on github by FlyingFoX.
-
-Thu Jan 17 06:53:58 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/literals.rdoc (Strings):  Fixed typo.  Fixes #236 on
-	  github by Doug Yun.
-
-Wed Jan 16 18:45:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/win32ole/lib/win32ole.rb: use TracePoint to hook all thread
-	  creation not only by Thread.new and to get rid of interference with
-	  svar scope.  [Bug #7681] [ruby-core:51365]
-
-Wed Jan 16 09:35:53 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* .document:  Removed extra space
-	* lib/irb/lc/.document:  Hide help-message
-	* lib/minitest/.document:  Hide README.txt
-	* lib/rake/lib/.document:  Hide project.rake
-	* lib/rdoc/generator/template/json_index/.document:  Hide JavaScript
-	  files
-	* lib/rubygems/ssl_certs/.document:  Hide PEM files.
-
-Wed Jan 16 03:54:28 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/control_expressions.rdoc:  Omit optional "then" for if and
-	  unless expressions.  Improved description of "a if a = 0.zero?"
-	  NameError.  Note that "do" for for loop is optional.
-
-Wed Jan 16 03:28:47 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/calling_methods.rdoc:  Link to defining methods.
-	* doc/syntax/methods.rdoc:  Link to calling methods, fixed typo.
-
-Wed Jan 16 03:15:00 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/methods.rdoc:  Fixed link
-	* doc/syntax/modules_and_classes.rdoc:  Fixed link
-	* doc/syntax.rdoc:  Updated with links to the recently added pages
-
-Wed Jan 16 03:05:50 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/control_expressions.rdoc (redo Statement):  Added note
-	  about retry.
-	* doc/syntax/exceptions.rdoc:  Added retry statement
-
-Tue Jan 15 23:12:34 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* tool/vpath.rb (VPath#list): default separator to PATH_SEPARATOR from
-	  configure.in for make, not same name constant of File for use in ruby.
-
-Tue Jan 15 22:30:04 2013  Keiju Ishitsuka  <keiju@ishitsuka.com>
-
-	* lib/irb/ext/save-history.rb: identify rightly a status of a
-	  history file that already exists [Bug #7694]. Thanks Nobuhiro IMAI
-	  for this patch.
-
-Tue Jan 15 15:55:28 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/control_expressions.rdoc:  Added description of control
-	  expressions in ruby.
-
-Tue Jan 15 13:33:00 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/methods.rdoc (Method Names):  Added method names including
-	  operator methods.
-	* doc/syntax/methods.rdoc (Return Values):  Added note that assignment
-	  methods ignore return values.
-	* doc/syntax/precedence.rdoc:  Added document describing precedence.
-
-Tue Jan 15 11:49:31 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/methods.rdoc (Block Argument):  Added section on block
-	  argument.  Thanks to Andy Lindeman.
-
-Tue Jan 15 10:54:59 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/calling_methods.rdoc (Arguments):  Added improved
-	  introduction to arguments including passing style and lazy
-	  evaluation.  Thanks to Matt Aimonetti.
-	* doc/syntax/calling_methods.rdoc (Positional Arguments):  Added
-	  description for sending a message to a method with *arguments
-	* doc/syntax/calling_methods.rdoc (Default Positional Arguments):
-	  Added description.  Thanks to Andy Lindeman.
-	* doc/syntax/calling_methods.rdoc (Block Local Arguments):
-	  Added description of block locals.  Thanks to Justin Collins.
-	* doc/syntax/calling_methods.rdoc (Hash to Keyword Arguments):  Added
-	  section describing ** operator.  Thanks  to Justin Collins.
-
-Tue Jan 15 10:40:18 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* test_lazy_enumerator: Test that map & flat_map also require a block
-
-Tue Jan 15 09:22:47 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread_pthread.c (gvl_init): Reset gvl.wait_yield explicitly when
-	  fork()ing. Patch by Apollon Oikonomopoulos. Thanks!
-	  [Bug #7693][ruby-core:51424]
-
-Tue Jan 15 09:27:56 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/calling_methods.rdoc (Receiver):  Added :: as pointed out
-	  by Tony Arcieri
-	* doc/syntax/calling_methods.rdoc (Block Argument):  Fixed { } block
-	  examples as pointed out by David Copeland.
-
-Tue Jan 15 09:10:29 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/methods.rdoc (Array/Hash Argument):  Moved above Keyword
-	  Arguments
-	* doc/syntax/methods.rdoc (Keyword Arguments):  Described ** for
-	  gathering arbitrary keyword arguments.
-
-Tue Jan 15 08:56:37 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/calling_methods.rdoc:  Added document describing method
-	  calls.
-
-Tue Jan 15 07:39:21 2013  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/top_level.rb:  Fixed extension trimming for page names in
-	  RDoc HTML output.  [ruby-trunk - Bug #7673]
-	* test/rdoc/test_rdoc_top_level.rb:  Test for above.
-
-Mon Jan 14 23:06:41 2013  Keiju Ishitsuka  <keiju@ishitsuka.com>
-
-	* lib/irb/ext/save-history.rb: outputs its history to
-	  owner-only-readable file and change the permission of a file that
-	  already exists [Bug #7694]. Thanks Nobuhiro IMAI for bug reports.
-
-Mon Jan 14 17:12:48 2013  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* enumerator.c (lazy_flat_map_func): flat_map should call each only
-	  when the value of a block returns a forcable object.
-	  [ruby-core:51401] [Bug #7690]
-
-	* enumerator.c (lazy_flat_map): add documentation.
-
-	* test/ruby/test_lazy_enumerator.rb: related test.
-
-Mon Jan 14 16:42:28 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* enumerator.c: Require block for Lazy#{take|drop}_while [Bug #7692]
-
-Mon Jan 14 14:41:00 2013  Kenta Murata  <mrkn@mrkn.jp>
-
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_to_s): use CRuby style.
-
-Mon Jan 14 14:39:00 2013  Kenta Murata  <mrkn@mrkn.jp>
-
-	* ext/bigdecimal/bigdecimal.c: use `RB_TYPE_P(x, t)` instead of
-	  `TYPE(x) == t`.
-
-Mon Jan 14 10:18:56 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* enumerator.c: Fix size for Enumerator::Lazy#flat_map
-
-Mon Jan 14 07:12:52 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/matrix/lup_decomposition: Fix bugs with LUP Decomposition of
-	  rectangular matrices. [rubyspec:ba849801a85]
-
-Mon Jan 14 06:46:53 2013  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* regparse.c (add_ctype_to_cc): don't check dup warn on adding
-	  negative ctype to cclass. [Bug #7471] [ruby-core:50344]
-
-Mon Jan 14 06:06:03 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/matrix/eigenvalue_decomposition: Backport bugfix of Jama 1.0.3
-	  [rubyspec:df87040be371]
-
-Sun Jan 13 16:45:00 2013  Zachary Scott <zachary@zacharyscott.net>
-
-	* ext/psych/yaml/scanner.c: Fix typos, patch by James Dabbs
-	  [Github tenderlove/psych#118]
-
-Sun Jan 13 15:00:00 2013  Kenta Murata  <mrkn@mrkn.jp>
-
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_sub):
-	  need to specify precision for converting Rational and Float.
-	  [ruby-dev:46544] [Bug #7404]
-
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_mult): ditto.
-
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_divide): ditto.
-
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_DoDivmod): ditto.
-
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_divremain): ditto.
-
-	* test/bigdecimal/test_bigdecimal.rb: add tests for the above fixes.
-
-Sun Jan 13 14:48:55 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/matrix/eigenvalue_decomposition: Fix eigensystem with complex
-	  eigenvectors. Patch by pypypy567.
-	  [Bug #7208] [ruby-dev:46251] [rubyspec:242f8e55bd]
-
-	* lib/matrix/lup_decomposition.rb: Fix error for rectangular matrices
-	  [bug#7620] [ruby-core:51118] [rubyspec:41f833ee2]
-
-Sun Jan 13 14:06:00 2013  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/irb.rb, lib/prime.rb: Typos in overview
-	  Patch by Ershad K [Github Fixes #234]
-
-Sun Jan 13 13:40:00 2013  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/open3.rb : Typo in Open3 overview. Patch by zed_0xff
-	  [Github Fixes #233]
-
-Sat Jan 12 17:42:00 2013  Kenta Murata  <mrkn@cookpad.com>
-
-	* numeric.c (do_coerce): fix for the exceptions which the coerce
-	  method raises.  The optimization done by r38756 is preserved.
-	  [Bug #7645] [ruby-core:51213]
-
-Sat Jan 12 16:12:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/setup.mak (-runtime-): see msvcrt from link header on mswin
-	  instead of running testing executable file, for cross compiling.
-
-Sat Jan 12 08:58:47 2013  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/visitors/to_ruby.rb: merge key values that
-	  contain something besides a hash should be left in tact.
-
-	* test/psych/test_merge_keys.rb: test for change
-
-Sat Jan 12 07:52:47 2013  Masaki Suketa <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c (ole_set_byref): support VT_UI8|VT_BYREF,
-	  VT_I8|VT_BYREF in cygwin and mingw.
-
-	* ext/win32ole/win32ole.c (ole_variant2val): ditto.
-
-	* test/win32ole/test_win32ole_variant.rb (test_s_new_with_i8_byref):
-	  ditto.
-
-	* test/win32ole/test_win32ole_variant.rb (test_s_new_with_ui8_byref):
+	* test/rinda/test_rinda.rb (test_make_socket_ipv4_multicast):
+	  The fifth argument to getsockopt(2) should be modified to
+	  indicate the actual size of the value on return,
+	  but not in AIX. This is a know bug. Skip related tests.
+	* test/rinda/test_rinda.rb (test_ring_server_ipv4_multicast):
 	  ditto.
+	* test/rinda/test_rinda.rb (test_make_socket_unicast): ditto.
+	* test/socket/test_basicsocket.rb (test_getsockopt): ditto.
+	* test/socket/test_sockopt.rb (test_bool): ditto.
 
-Sat Jan 12 02:45:00 2013  Zachary Scott  <zachary@zacharyscott.net>
-
-	* man/ruby.1 (options): include --*-encoding from r38784
-
-Fri Jan 11 23:34:48 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* ruby.c (usage): sort --*-encoding in help. (same order of -E)
-
-Fri Jan 11 16:56:29 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* tool/mkconfig.rb: use configured libdir value to fix
-	  --enable-load-relative on systems where libdir is not default value,
-	  overridden in config.site files.  [ruby-core:47267] [Bug #6903]
-
-Fri Jan 11 11:59:32 2013  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* string.c (dispose_string): use rb_str_free for freeing string in
-	  parse.y. by Sokolov Yura <funny.falcon@gmail.com>
-	  https://github.com/ruby/ruby/pull/87 fix GH-87
-
-Fri Jan 11 09:56:22 2013  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* insns.def (defineclass): private constants should not be accessed
-	  by scoped module definitions.  The bug was introduced in r38495.
-
-	* test/ruby/test_module.rb: related test.
-
-Fri Jan 11 02:11:59 2013  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/rbconfig/obsolete.rb (respond_to_missing?): use send because
-	  RbConfig.respond_to_missing? is now private.
-
-Thu Jan 10 22:00:58 2013  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h (VM_DEBUG_BP_CHECK): set 0 as default.
-	  This flag specifies checking BP consistency on each frame popping.
-	  Now, we don't have any trouble on it, so I remove it.
-	  If you feel any bugs about VM execution, then set it to 1.
-
-Thu Jan 10 21:03:05 2013 TAKANO `takano32' Mitsuhiro <tak@no32.tk>
-
-	* cont.c: define FIBER_USE_NATIVE as 0 in ia64.
-
-Thu Jan 10 19:39:05 2013  TAKANO `takano32' Mitsuhiro <tak@no32.tk>
-
-	* thread.c: fix RB_GC_SAVE_MACHINE_REGISTER_STACK define for ia64.
-
-Thu Jan 10 17:45:39 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* Makefile.in, win32/Makefile.sub ($(MKFILES)): continue if Makefile
-	  unchanged.
-
-Thu Jan 10 16:31:20 2013  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_insnhelper.c (vm_search_super_method): raise a TypeError
-	  instead of a NotImplementedError if self is not an instance of the
-	  current class.  [ruby-dev:39772] [Bug #2402]
-
-Thu Jan 10 16:47:18 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/tk/extconf.rb (find_tcltk_header): use have_header instead of
-	  try_cpp, which is incredibly slow with VC.
-
-Thu Jan 10 15:55:28 2013  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* numeric.c (do_coerce): remove an unused variable.
-
-Thu Jan 10 15:35:55 2013  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* tool/gen_dummy_probes.rb: remove comments in probes.d to fix the
-	  compilation error introduced by r38755.
-
-Thu Jan 10 11:15:04 2013  Kenta Murata  <mrkn@cookpad.com>
-
-	* numeric.c (do_coerce): speed optimization by using rb_check_funcall
-	  instead of rb_rescue + rb_funcall.
-	  This fix is based on the patch by Benoit Daloze.
-	  [Bug #7645] [ruby-core:51213]
-
-Thu Jan 10 11:15:04 2013  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* probes.d: updating probes to be more symmetrical, adding
-	  documentation.
-
-	* load.c: ditto
-
-Thu Jan 10 04:23:07 2013  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/scalar_scanner.rb: strip trailing dots from
-	  floats so that Float() will not raise an exception.
-
-	* test/psych/test_numeric.rb: test to ensure "1." can be loaded
-
-	* test/psych/test_string.rb: make sure "1." can round trip
-
-Thu Jan 10 03:38:40 2013  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/visitors/yaml_tree.rb: ascii only binary strings
-	  will be dumped as unicode.  Thanks Paul Kunysch!
-
-	* test/psych/test_string.rb: appropriate test
-
-Thu Jan 10 03:29:55 2013  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (compile_array_): modify wrong optimization.
-	  A script "[print(1)]; print(2)" should output "12".
-	  However, the compiler had eliminated "[print(1)]" expression
-	  because it is void expression (unused array).
-	  Of course, side-effect should be remained.
-	  This issue is reported by Masaya Tarui.
-
-	* bootstraptest/test_literal.rb: add a test.
-
-Wed Jan  9 22:07:42 2013  Masaki Matsushita  <glass.saga@gmail.com>
-
-	* load.c (load_lock): if thread shield is destroyed and there is no
-	  waiting thread, insert new thread shield into load_table.
-	  [Bug #7530] [ruby-core:50645]
-
-Wed Jan  9 21:43:32 2013  Masaki Matsushita  <glass.saga@gmail.com>
-
-	* load.c (load_lock): revert r38744. it should acquire new thread
-	  shield.
-
-Wed Jan  9 15:40:18 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm.c (th_init, ruby_thread_init): initialize root_svar with Qnil,
-	  since lep_svar_place() expects uninitialized svar to be nil, not 0.
-
-Wed Jan  9 13:20:23 2013  Masaki Matsushita  <glass.saga@gmail.com>
-
-	* test/ruby/test_require.rb: improve test for r38744.
-	  fix to use Tempfile instead of temporary file in current directory.
-	  the patch is from nobu (Nobuyoshi Nakada).
-
-Wed Jan  9 09:53:23 2013  Masaki Matsushita  <glass.saga@gmail.com>
-
-	* load.c (load_lock): fix not to delete thread shield twice.
-	  it may break the shield locked by another thread.
-	  [Bug #7530] [ruby-core:50645]
-
-	* test/ruby/test_require.rb: a test for above.
-
-Wed Jan  9 02:13:22 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (RBasic): to be aligned on a VALUE size
-	  boundary.  [Bug #7647]
-
-Tue Jan  8 14:41:41 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_core.h (rb_iseq_t): move flip_cnt from struct iseq_compile_data,
-	  because it has same life span as enclosing iseq.  [Bug #7671]
-	  [ruby-core:51296]
-
-Mon Jan  7 23:43:00 2013  Kenta Murata  <mrkn@mrkn.jp>
-
-	* ext/bigdecimal/bigdecimal.c (rmpd_power_by_big_decimal):
-	  add RB_GC_GUARD to prevent the intermediate object is GCed too early.
-	  This patch was made by Yusuke Endoh.  [Bug #7044] [ruby-core:47632]
-
-	* test/bigdecimal/test_bigdecimal.rb: add a reproduction test for
-	  the issue [Bug #7044]
-
-Mon Jan  7 21:40:36 2013  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_method.c (Init_eval_method): main.public and main.private
-	  should be private.
-
-	* proc.c (Init_Proc): main.define_method should be private.
-
-	* test/ruby/test_module.rb: related test.
-
-Mon Jan  7 20:48:47 2013  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (Init_eval): main.include should be private.
-	  [ruby-core:51293] [Bug #7670]
-
-	* test/ruby/test_module.rb (test_top_include_is_private): a new test
-	  for the above change.
-
-Mon Jan  7 20:29:50 2013  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* NEWS: remove description about `require "refinement"'.
-
-Mon Jan  7 20:15:49 2013  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (Init_eval): enable Refinements by default.
-	  [ruby-core:51286] [Bug #7667]
-
-	* eval.c (rb_mod_refine, top_using): show a warning when
-	  Module#refine or main.using is called at the first time.
-
-	* ext/refinement/*: removed the extension library "refinement".
-
-	* test/ruby/test_refinement.rb: fix for the above changes.
-
-Mon Jan  7 17:34:22 2013  Koichi Sasada  <ko1@atdot.net>
-
-	* include/ruby/ruby.h (RUBY_EVENT_SPECIFIED_LINE): make it special.
-	  This flag is not contained by RUBY_EVENT_TRACEPOINT_ALL.
-	  This event is experimental one. It is possible to remove/rename
-	  flag name after 2.0.1.
-
-	* vm_trace.c (get_event_id): return :line if SPECIFIED_LINE was
-	  occurred. `:specified_line' never been returned.
-
-Mon Jan  7 15:42:10 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (f_kwrest): allow bare kwrest_mark as valid syntax.  its
-	  semantics is still undefined.  [Bug #7662] [ruby-core:51269]
-
-Mon Jan  7 15:31:58 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (f_kwrest): reject duplicated kwrest argument name.
-
-Mon Jan  7 15:24:10 2013  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_trace.c (rb_threadptr_exec_event_hooks_orig): pop tag before
-	  JUMP_TAG() if frame is `finish' frame.
-	  Without this patch, there is an inconsistency between control
-	  frame stack and tags stack.
-	  [Bug #7668]
-
-	* test/ruby/test_settracefunc.rb: add a test for above.
-
-Mon Jan  7 15:21:48 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* Makefile.in, common.mk (fake, yes-fake, no-make): these dependencies
-	  are not platform dependent.
-
-	* win32/Makefile.sub ($(arch)-fake.rb): workaround.
-
-Mon Jan  7 12:09:24 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_insnhelper.c (vm_callee_setup_arg_complex, vm_yield_setup_block_args):
-	  set keyrest hash after making rest array, so that the last element
-	  will not be overwritten.  [ruby-core:51278] [Bug #7665]
-
-Mon Jan  7 09:37:24 2013  Koichi Sasada  <ko1@atdot.net>
-
-	* NEWS: add a NEWS entry about RubyVM.
-
-Sun Jan  6 19:06:57 2013  Yuki Yugui Sonoda  <yugui@yugui.jp>
-
-	* win32/Makefile.sub: Fix build with VC.
-	  Patch by Charlie Savage. Fixes [ruby-core:51261]
-
-Sun Jan  6 18:43:48 2013  Yuki Yugui Sonoda  <yugui@yugui.jp>
-
-	* bootstraptest/test_io.rb: add a test for [ruby-dev:46834].
-
-	* io.c (rb_cloexec_fcntl_dupfd) Use an emulation with dup(2) when
-	  fcntl(2) and/or F_DUPFD is unavailable.
-	  Suggested by akr.
-
-	* configure.in (HAVE_FCNTL): NativeClient does not provide fcntl(2).
+Tue Mar 29 15:27:14 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Sun Jan  6 11:11:26 2013  Eric Hodel  <drbrain@segment7.net>
+	* test/zlib/test_zlib.rb (test_adler32_combine, test_crc32_combine):
+	  Skip two tests on AIX because zconf.h in zlib does not correctly
+	  recognize _LARGE_FILES in AIX. The problem was already reported
+	  to zlib, and skip these tests until it is fixed.
 
-	* doc/syntax/modules_and_classes.rdoc:  Fixed typo.
+Tue Mar 29 15:10:31 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Sun Jan  6 05:35:18 2013  Eric Hodel  <drbrain@segment7.net>
+	* thread_pthread.c (getstack): __pi_stacksize returned by
+	  pthread_getthrds_np() is wrong on AIX. Use
+	  __pi_stackend - __pi_stackaddr instead.
 
-	* doc/syntax/modules_and_classes.rdoc:  Added singleton classes
-	  documentation.
+Tue Mar 29 15:10:05 2016  Alex Boyd  <alex@opengroove.org>
 
-Sun Jan  6 02:22:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* lib/irb.rb: avoid to needless truncation when using back_trace_limit option.
+	  [fix GH-1205][ruby-core:72773][Bug #11969]
 
-	* lib/webrick/httpservlet/abstract.rb (WEBrick::HTTPServlet): Typo in
-	  example. Patch by shlensky [Fixes #232 on github]
+Tue Mar 29 15:05:16 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-Sat Jan  5 21:15:10 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+	* ext/tk/lib/tkextlib/tcllib/tablelist_tile.rb: fix method name typo.
+	  [ruby-core:72513] [Bug #11893] The patch provided by Akira Matsuda.
 
-	* lib/net/http/generic_request.rb:
-	  Amazon ECA API and GTE/1.3 disallow requests whose host has port
-	  number if its port number equals to default port number of the
-	  scheme. [Bug #7650]
 
-Sat Jan  5 13:58:59 2013  Eric Hodel  <drbrain@segment7.net>
+Tue Mar 29 15:05:02 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-	* doc/syntax/modules_and_classes.rdoc:  Improved description of methods
-	  on a module or class as suggested by Tobias Buhlmann
+	* ext/tk/lib/tkextlib/tcllib/toolbar.rb: fix method name typo.
+	  [ruby-core:72511] [Bug #11891] The patch provided by Akira Matsuda.
 
-Sat Jan  5 13:38:07 2013  Masaki Matsushita  <glass.saga@gmail.com>
 
-	* string.c (rb_str_enumerate_lines): fix invalid byte sequence error
-	  when a separator is passed. The patch is from yoshidam (Yoshida
-	  Masato).
-	  [Bug #7646] [ruby-dev:46827]
+Tue Mar 29 15:04:42 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-	* test/ruby/test_string.rb: a test for above.
+	* ext/tk/lib/tkextlib/blt/tree.rb: fix method name typo.
+	  [ruby-core:72510] [Bug #11890] The patch provided by Akira Matsuda.
 
-Sat Jan  5 12:25:42 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/envutil.rb (Test::Unit::Assertions#assert_in_out_err):
-	  check stdout and stderr both.
+Tue Mar 29 15:04:19 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-Sat Jan  5 10:21:54 2013  Eric Hodel  <drbrain@segment7.net>
+	* ext/tk/lib/tk/menubar.rb: fix a typo in font name. [ruby-core:72505]
+	  [Bug #11886] The patch provided by Akira Matsuda.
 
-	* doc/syntax/modules_and_classes.rdoc:  Added documentation of syntax
-	  for Modules and Classes.
-	* doc/syntax/methods.rdoc:  Moved some text to the Modules and
-	  Classes syntax document.
+	* ext/tk/sample/*.rb: ditto.
 
-Sat Jan  5 08:38:27 2013  Eric Hodel  <drbrain@segment7.net>
+Tue Mar 29 15:03:03 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* doc/syntax/methods.rdoc:  Added return values and scope sections,
-	  slightly modified from the original patch.  Fixes #227 from github by
-	  Dave Brown.
+	* ruby.h: undef HAVE_BUILTIN___BUILTIN_CHOOSE_EXPR_CONSTANT_P
+	  and HAVE_BUILTIN___BUILTIN_TYPES_COMPATIBLE_P on C++.
+	  [ruby-core:72736] [Bug #11962]
 
-Sat Jan  5 08:21:41 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Tue Mar 29 14:58:56 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* io.c (rb_cloexec_fcntl_dupfd): improve #ifdef condition.
-	* io.c (rb_maygvl_fd_fix_cloexec): ditto.
+	* ext/socket/option.c (inspect_tcpi_msec): more accurate condition
+	  for TCPI msec member inspection function.
+	  [ruby-core:74388] [Bug #12185]
 
-Sat Jan  5 07:54:59 2013  Eric Hodel  <drbrain@segment7.net>
+Tue Mar 29 14:53:58 2016  Naotoshi Seo  <sonots@gmail.com>
 
-	* lib/rubygems/commands/cleanup_command.rb:  Clean all possible gems
-	  using multiple passes.  Fixes RubyGems bug #422.  Refactored for
-	  maintainability.
-	* test/rubygems/test_gem_commands_cleanup_command.rb:  Test for above.
+	* lib/logger.rb: Remove block from Logger.add as it's not needed
+	  patch provided by Daniel Lobato Garcia [fix GH-1240] [Bug #12054]
 
-Sat Jan  5 05:04:39 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Tue Mar 29 14:52:20 2016  Zachary Scott  <zzak@ruby-lang.org>
 
-	* gc.c (vm_xrealloc): add a few comment why we avoid realloc(ptr,0).
+	* re.c: Remove deprecated kcode argument from Regexp.new and compile
+	  patch provided by Dylan Pulliam [Bug #11495]
 
-Fri Jan  4 20:17:06 2013  Yuki Yugui Sonoda  <yugui@yugui.jp>
+Tue Mar 29 14:44:02 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* Makefile.in (RBCONFIG): Moved from common.mk in order to use the
-	  variable in Makefile.in.
+	* ext/socket/socket.c (sock_gethostname): support unlimited size
+	  hostname.
 
-	* win32/Makefile.sub (RBCONFIG): Ditto.
+Tue Mar 29 14:35:06 2016  Kouhei Sutou  <kou@cozmixng.org>
 
-Fri Jan  4 19:45:50 2013  Yuki Yugui Sonoda  <yugui@yugui.jp>
+	* lib/xmlrpc/client.rb: Support SSL options in async methods of
+	  XMLRPC::Client.
+	  [Bug #11489]
+	  Reported by Aleksandar Kostadinov. Thanks!!!
 
-	* common.mk (run, parse): Use BTESTRUBY instead of MINIRUBY to handle
-	  cross-compiling cases, e.g. NativeClient.
+Tue Mar 29 14:22:57 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Fri Jan  4 17:58:16 2013  Yuki Yugui Sonoda  <yugui@yugui.jp>
+	* marshal.c (r_object0): honor Marshal.load post proc
+	  value for TYPE_LINK.  by Hiroshi Nakamura <nahi@ruby-lang.org>
+	  https://github.com/ruby/ruby/pull/1204 fix GH-1204
 
-	* common.mk (yes-btest): btest depends on also $(arch)-fake.rb and
-	  rbconfig.rb on building for NativeClient.
+Tue Mar 29 14:18:26 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* Makefile.in (fake): Avoid generating $(arch)-fake.rb unless cross
-	  compiling.
+	* .travis.yml: removed commented-out code.
 
-	* configure.in (CROSS_COMPILING): New substitution.
+Tue Mar 29 14:18:26 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Fri Jan  4 16:26:45 2013  Eric Hodel  <drbrain@segment7.net>
+	* .travis.yml: removed osx code. follow up with r53517
 
-	* lib/rubygems/doctor.rb:  Process directories in order in case the
-	  filesystem doesn't.  [ruby-trunk - Bug #7618]
+Tue Mar 29 14:12:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	  Process specifications before other directories in case of bugs.
-	* test/rubygems/test_gem_doctor.rb:  Test for above.
+	* ext/socket/option.c (sockopt_bool): relax boolean size to be one
+	  too not only sizeof(int).  Winsock getsockopt() returns a single
+	  byte as a boolean socket option.  [ruby-core:72730] [Bug #11958]
 
-	* lib/rubygems.rb:  Updated version.
+Tue Mar 29 14:12:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/rubygems/test_require.rb:  Fixed double require of
-	  benchmark.rb.  RubyGems bug #420.
+	* ext/socket/option.c (check_size): extract a macro to check
+	  binary data size, with a consistent message.
 
-	* test/rubygems/test_gem_commands_check_command.rb:  Fixed unused
-	  variable warnings.
-	* test/rubygems/test_gem_commands_query_command.rb:  ditto
-	* test/rubygems/test_gem_installer.rb:  ditto
+	* ext/socket/option.c (sockopt_byte): fix error message,
+	  sizeof(int) differs from sizeof(unsigned char) in general.
 
-Fri Jan  4 15:05:25 2013  Eric Hodel  <drbrain@segment7.net>
+Tue Mar 29 14:01:14 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* lib/rdoc/cross_reference.rb:  Fixed matching of C#=== or #===.  RDoc
-	  bug #164
-	* test/rdoc/test_rdoc_cross_reference.rb:  Test for above.
+	* process.c (rb_execarg_parent_start1): need to convert the encoding to
+	  ospath's one.
 
-	* lib/rdoc/parser/changelog.rb:  Fixed parsing of dates.  RDoc bug #165
-	* test/rdoc/test_rdoc_parser_changelog.rb:  Test for above.
+Tue Mar 29 14:01:14 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* lib/rdoc/parser.rb:  Fixed parsing multibyte files with incomplete
-	  characters at byte 1024.  [ruby-trunk - Bug #6393]
-	  Fixed handling of -E.  [ruby-trunk - Bug #6392]
-	* test/rdoc/test_rdoc_options.rb:  Test for above.
-	* test/rdoc/test_rdoc_parser.rb:  ditto.
-	* test/rdoc/test_rdoc_parser_c.rb:  ditto.
-	* test/rdoc/test_rdoc_parser_changelog.rb:  ditto.
-	* test/rdoc/test_rdoc_parser_markdown.rb:  ditto.
-	* test/rdoc/test_rdoc_parser_rd.rb:  ditto.
-	* test/rdoc/test_rdoc_rdoc.rb:  ditto.
+	* process.c: use rb_w32_uchdir() instead of plain chdir() on Windows.
+	  reported by naruse via twitter.
 
-	* lib/rdoc/tom_doc.rb:  Fixed parsing of [] in TomDoc arguments list.
-	  RDoc bug #167
-	* test/rdoc/test_rdoc_tom_doc.rb:  Test for above.
+	* process.c (rb_execarg_addopt): need to convert the encoding to
+	  ospath's one.
 
-	* lib/rdoc.rb:  Update version.
+Tue Mar 29 13:56:36 2016  Eric Wong  <e@80x24.org>
 
-Fri Jan  4 11:51:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* ext/stringio/stringio.c (strio_binmode): implement to set encoding
+	* test/stringio/test_stringio.rb (test_binmode): new test
+	  [ruby-core:72699] [Bug #11945]
 
-	* lib/forwardable.rb: Fix rdoc parameters for ::def_single_delegator.
-	  Patch by Vladimir Andrijevik [Github Fixes #230]
+Tue Mar 29 13:50:30 2016  Eric Wong  <e@80x24.org>
 
-Fri Jan  4 00:35:11 2013  Yuki Yugui Sonoda  <yugui@yugui.jp>
+	* io.c (io_getpartial): remove unused kwarg from template
+	* test/ruby/test_io.rb (test_readpartial_bad_args): new
+	  [Bug #11885]
 
-	Fix failures on btest for NativeClient.
-	* bootstraptest/runner.rb (nacl?): New method to distinguish NaCl
-	  cross build.
+Tue Mar 29 13:41:03 2016  Tadashi Saito  <tad.a.digger@gmail.com>
 
-	* bootstraptest/test_io.rb: Skip unsupported operations.
+	* compile.c, cont.c, doc, man: fix common misspelling.
+	  [ruby-core:72466] [Bug #11870]
 
-	* bootstraptest/test_literal.rb: ditto.
+Tue Mar 29 13:31:34 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Jan  4 00:29:40 2013  Yuki Yugui Sonoda  <yugui@yugui.jp>
+	* parse.y (regexp): set_yylval_num sets u1, should use nd_tag
+	  instead of nd_state.  [ruby-core:72638] [Bug #11932]
 
-	* io.c (rb_cloexec_fcntl_dupfd): Fix failures in
-	  bootstrap_test/test_io.rb.  NativeClient does not support F_DUPFD
-	  but supports dup2(2).
+Tue Mar 29 13:31:34 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Jan  3 17:46:50 2013  Kouhei Sutou  <kou@cozmixng.org>
+	* parse.y (set_yylval_num): should be used as nd_state, set to u3.
+	  [ruby-core:72638] [Bug #11932]
 
-	* lib/rexml/element.rb (REXML::Elements#add): Remove too much
-	  "elements" in document. Sorry...
+Tue Mar 29 13:26:15 2016  Joseph Tibbertsma  <josephtibbertsma@gmail.com>
 
-Thu Jan  3 17:42:32 2013  Kouhei Sutou  <kou@cozmixng.org>
+	* gc.c (RVALUE_PAGE_WB_UNPROTECTED): fix a typo of argument name.
+	  [Fix GH-1221]
 
-	* lib/rexml/element.rb (REXML::Elements#each): Add missing
-	  "elements" in document. [ruby-talk:402713]
-	  Reported by Wesley Rishel. Thanks!!!
+Thu Jan 21 16:39:55 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Thu Jan  3 15:13:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* Makefile.in (update-rubyspec): fix r53208 like r53451.
 
-	* ext/psych/lib/psych.rb (Psych.load): Return value of
-	  Psych::SyntaxError.message should be same as example.
-	  Patch by Ippei Obayashi [ruby-core:51193] [Bug #7636]
+Fri Jan 15 00:05:57 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Thu Jan  3 14:58:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* lib/uri/generic.rb (URI::Generic#to_s): change encoding to
+	  UTF-8 as Ruby 2.2/ by Koichi ITO <koic.ito@gmail.com>
+	  https://github.com/ruby/ruby/pull/1188 fix GH-1188
 
-	* lib/forwardable.rb (SingleForwardable): Fix example in overview
-	  Patch by Vladimir Andrijevik [Github Fixes #231]
+Tue Jan 12 17:23:39 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Thu Jan  3 14:32:47 2013  Yuki Yugui Sonoda  <yugui@yugui.jp>
+	* process.c (rb_execarg_parent_start1): need to convert the encoding to
+	  ospath's one.
 
-	* configure.in (OBJCOPY):  Fixes build error for NativeClient.
-	  Avoid disabling OBJCOPY for NativeClient.
+Tue Jan 12 17:23:39 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* thread_pthread.c (rb_reserved_fd_p): USE_SLEEPY_TIMER_THREAD is
-	  always defined.  Fixes compilation error for NativeClient.
+	* process.c: use rb_w32_uchdir() instead of plain chdir() on Windows.
+	  reported by naruse via twitter.
 
-Wed Jan 02 03:09:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* process.c (rb_execarg_addopt): need to convert the encoding to
+	  ospath's one.
 
-	* ext/zlib/zlib.c (Zlib::GzipReader): Fix typo by zed_0xff
-	  [Fixes Github #229]
+Tue Jan 12 15:21:00 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Jan 02 02:29:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* include/ruby/missing.h (explicit_bzero_by_memset_s): remove
+	  inline implementation by memset_s, which needs a macro before
+	  including headers and can cause problems in extension libraries
+	  by the order of the macro and headers.
 
-	* hash.c (rb_hash_update): Revert documentation from r38672
-	  See: https://github.com/ruby/ruby/pull/228#issuecomment-11791013
+Thu Dec 24 23:01:57 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Wed Jan 02 02:16:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+	* NEWS: added entry for CGI.escapeHTML optimization.
 
-	* hash.c (rb_hash_update): Documentation for Hash#merge and shallow
-	  copies Patch by Yorick Peterse [Fixes Github #228]
+Thu Dec 24 18:43:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Dec 31 15:10:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+	* error.c (rb_compile_error_with_enc, rb_compile_error),
+	  (rb_compile_bug): deprecate internal functions.
 
-	* vm_backtrace.c: Add documentation for Kernel#caller_locations,
-	  Kernel#caller, and Thread::Backtrace::Location
+	* parse.y (parser_yyerror): construct exception message with
+	  source code and caret.
 
-Mon Dec 31 13:05:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+Thu Dec 24 17:25:42 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_backtrace.rb: Add test for r37957 [Feature #7434]
+	* compile.c (append_compile_error), parse.y (compile_error):
+	  preserve encoding of source file name in exceptions.
 
-Sun Dec 30 23:33:36 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* error.c (rb_compile_error_str, rb_compile_bug_str): add.
 
-	* parse.y (simple_re_meta): escaped closing parenthesis has different
-	  meaning.  [Bug #7610] [ruby-core:51088]
+Thu Dec 24 16:17:47 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Sun Dec 30 12:09:47 2012  Charlie Somerville  <charlie@charliesomerville.com>
+	* common.mk (fake.rb): $(arch)-fake.rb must depend on miniruby because
+	  it may depend on miniruby.
 
-	* configure.in: use 4 argument form of AC_CHECK_HEADERS to force
-	  autoconf to use compiler's result
+Thu Dec 24 16:13:05 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Sun Dec 30 10:58:04 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* common.mk (ripper.c): r50045 wrongly replace $(PWD) with ../..
+	  It is the top of build directory, not topsrcdir.
 
-	* test/ruby/test_keyword.rb: add a test for passing hash
-	  as a last argument. [ruby-dev:46712] [Bug #7529]
+Thu Dec 24 15:02:42 2015  sorah (Shota Fukumori)  <her@sorah.jp>
 
-Sun Dec 30 10:51:29 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* tool/vcs.rb (IO.popen): Refactor. Avoid assigning in condition.
 
-	* vm_insnhelper.c: set keyword hash on Proc/block calls.
-	  [ruby-core:51172] [Bug #7630]
+Thu Dec 24 15:01:38 2015  sorah (Shota Fukumori)  <her@sorah.jp>
 
-	* test/ruby/test_keyword.rb: add tests for above.
+	* tool/file2lastrev.rb: Fix ArgumentError to work on Ruby 1.8.7.
 
-Sat Dec 29 21:57:11 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+Thu Dec 24 14:44:08 2015  sorah (Shota Fukumori)  <her@sorah.jp>
 
-	* lib/irb/completion.rb: treat rightly completion for symbol on irb
-	  [Bug #7632].
+	* tool/vcs.rb (IO.popen): Enable on Ruby 1.9 where chdir option is not
+	  supported on IO.popen
 
-Sat Dec 29 21:51:30 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* tool/vcs.rb (IO.popen): Fix NoMethodError. I guess r49705 was not
+	  tested... :/
 
-	* ext/curses/curses.c (window_cury, window_curx, window_maxy,
-	  window_maxx, window_begy, window_begx): use RB_UNUSED_VAR()
-	  to suppress unused-but-set-variable warnings.
+Thu Dec 24 14:57:03 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Dec 29 16:45:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+	* NEWS: rename
+	  "Implementation changes" section to
+	  "Supported platform changes" section.
 
-	* iseq.c (RubyVM::InstructionSequence): rdoc formatting
+	* NEWS: add "Implementation improvements" and add several entries.
 
-Sat Dec 29 15:28:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+	* NEWS: add NEWS entries by Eric Wong. [ruby-core:72450]
 
-	* iseq.c (RubyVM::InstructionSequence):	Add rdoc for new iseq features
-	  added from r38085, this includes ::of, #path, #absolute_path,
-	  #label, #base_label, #first_lineno, and #inspect
+Thu Dec 24 00:26:05 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Dec 29 14:06:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+	* ext/io/console/extconf.rb: fix gem build failure on Windows.
+	  only win32_vk.inc is included in the gem and no dependencies for
+	  the header, so that gperf will not be mandatory.
+	  [ruby-core:72453] [Bug #11866]
 
-	* iseq.c (rb_iseq_line_trace_all, rb_iseq_line_trace_specify): Add
-	  rdoc for experimental C level api of iseq, from r38076
+	* ext/io/console/io-console.gemspec: include depend file and
+	  win32_vk header.
 
-Sat Dec 29 11:37:36 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Dec 23 23:58:44 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* object.c (rb_obj_clone): attach clone to its singleton class during
-	  cloning singleton class so that singleton_method_added will be called
-	  on it.  based on the patch by shiba (satoshi shiba)[Bug #5283] in
-	  [ruby-dev:44477].  [Bug #5283]
+	* io.c (rb_readwrite_syserr_fail): works with the given errno than
+	  thread local errno.
 
-Sat Dec 29 10:10:39 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Dec 23 17:57:45 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* configure.in (crt_externs.h): use standard macro AC_CHECK_HEADERS.
+	* file.c, io.c, util.c: prefer rb_syserr_fail with saved errno
+	  over setting errno then call rb_sys_fail, not to be clobbered
+	  potentially and to reduce thread local errno accesses.
 
-Fri Dec 28 23:12:44 2012  Charlie Somerville  <charlie@charliesomerville.com>
+Wed Dec 23 11:58:52 2015  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-	* configure.in: check for the whether crt_externs.h is present when compiling
-	  for darwin (this header is missing in the iOS SDK)
-	* eval_intern.h: check HAVE_CRT_EXTERNS_H before including crt_externs.h, if
-	  not defined, include missing/crt_externs.h instead
-	* hash.c: ditto
-	* missing/setproctitle.c: ditto
-	* missing/crt_externs.h: declare _NSGetEnviron() function and define environ
-	  for iOS
+	* string.c: Fix document. Default value of the first
+	  argument of `String#split` is not `$;` but `nil`.
+	  When `nil` is passed as first argument, `$;` is used.
+	  [ci skip] [Bug #11729] [ruby-dev:49378]
 
-Fri Dec 28 21:40:36 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+Wed Dec 23 07:15:17 2015  Eric Wong  <e@80x24.org>
 
-	* lib/irb/context.rb: IRB::Context#new: Check from JobManager
-	  inside IRB namespace [Bug #7628]. Thanks rafaelfranca for bug
-	  report and its patch.
+	* ext/socket/init.c (rsock_init_sock): reject reserved FDs
+	  [ruby-core:72445] [Bug #11862]
 
-Fri Dec 28 17:06:17 2012  Akinori MUSHA  <knu@iDaemons.org>
+Wed Dec 23 02:59:26 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* misc/ruby-electric.el (ruby-electric-curlies): Automatically
-	  indent closing curly brackets when
-	  ruby-electric-newline-before-closing-bracket is true.
+	* configure.in (__STDC_WANT_LIB_EXT1__): necessary to use memset_s
+	  in strict C99 mode.
 
-Fri Dec 28 11:50:42 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Dec 23 02:34:36 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_insnhelper.c (vm_yield_setup_block_args): pass single argument to
-	  single optional parameter unchanged without splatting.  [Bug #7621]
-	  [ruby-dev:46801]
+	* regexec.c (match_at): move direct threaded VM code to get rid of
+	  mixed declarations and code, and enable it only for gcc since it
+	  depends on a gcc extension.
 
-Fri Dec 28 11:17:47 2012  Shugo Maeda  <shugo@ruby-lang.org>
+Wed Dec 23 02:23:19 2015  Yuki Nishijima  <mail@yukinishijima.net>
 
-	* proc.c (method_eq): fix the documentation to refer to owner.
-	  [ruby-core:51105] [Bug #7613]
+	* gems/bundled_gems: Upgrade the did_you_mean gem to 1.0.0
 
-	* test/ruby/test_method.rb (test_alias_onwer): new test to confirm
-	  that `a == b' returns false if owners of a and b are different.
+	* NEWS: Add news about the did_you_mean gem
 
-Fri Dec 28 07:07:43 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Wed Dec 23 02:18:57 2015  Jake Worth  <jakeworth82@gmail.com>
 
-	* def/id.def: use split(/^/) instead of String#lines to support
-	  Ruby 1.8.5 as BASERUBY.
+	* doc/contributing.rdoc: [DOC] remove an extra word "here".
+	  [Fix GH-1169]
 
-Thu Dec 27 21:56:56 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Wed Dec 23 01:58:20 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* variable.c (rb_mod_remove_const): fix segv caused by r38558.
+	* regexec.c (USE_DIRECT_THREADED_VM): enable direct threaded VM by
+	  the default.
 
-Tue Dec 28 01:13:48 2012  James Edward Gray II  <james@graysoftinc.com>
+Tue Dec 22 22:15:53 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/csv.rb: Added more Hash methods to CSV::Row.
+	* gc.c (internal_object_p): should not expose singleton classes
+	  without a metaclass.  based on patches by ko1 and shugo.
+	  [Bug #11740]
 
-Thu Dec 27 23:27:15 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+	* class.c (rb_singleton_class_object_p): added.
 
-	* lib/irb/ruby-lex.rb: make lex_state to EXPR_END when next token
-	  is an operator after SYMBEG [Bug #6378].
+Tue Dec 22 22:15:08 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Dec 27 21:30:21 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+	* ext/io/console/io-console.gemspec: bump up to 0.4.4.
 
-	* lib/irb/ruby-lex.rb: allow to handle recursive heredocs on
-	  irb[Bug #5648].
+Tue Dec 22 22:11:06 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Dec 27 20:45:29 2012  Masaki Matsushita  <glass.saga@gmail.com>
+	* NEWS: Added news entry of Psych 2.0.17
 
-	* ext/stringio/stringio.c (strio_getline): fix not to raise TypeError
-	  when limit is nil.
-	  [Bug #7232] [ruby-core:48531]
+Tue Dec 22 22:09:01 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* test/stringio/test_stringio.rb: a test for above.
+	* NEWS: Added news entry of RDoc 4.2.1
 
-Thu Dec 27 21:08:23 2012  Charlie Somerville  <charlie@charliesomerville.com>
+Tue Dec 22 21:20:00 2015  Kenta Murata  <mrkn@mrkn.jp>
 
-	* vm_core.h (VM_DEFINECLASS_TYPE): explicit cast to enum type to avoid 64->32
-	  shorten warning
+	* ext/bigdecimal/bigdecimal.gemspec: bump version to 1.2.8.
 
-Thu Dec 27 20:11:29 2012  Masaki Matsushita  <glass.saga@gmail.com>
+Tue Dec 22 21:08:05 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/stringio/stringio.c (strio_ungetc): raise IOError instead of RuntimeError
-	  if the string is frozen.
-	  [Bug #7231] [ruby-core:48530]
+	* lib/rdoc.rb: bump version to 4.2.1. It contains following fixes.
+	  https://github.com/rdoc/rdoc/pull/340
+	  https://github.com/rdoc/rdoc/pull/341
+	  https://github.com/rdoc/rdoc/pull/367
+	  https://github.com/rdoc/rdoc/pull/368
+	* lib/rdoc/*: ditto.
+	* test/rdoc/*: ditto.
 
-	* ext/stringio/stringio.c (strio_ungetbyte): ditto.
+Tue Dec 22 20:25:33 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* test/stringio/test_stringio.rb: a test for above.
+	* ext/psych/lib/psych.rb: bump version to 2.0.17
+	* ext/psych/psych.gemspec: ditto.
 
-Wed Dec 26 23:55:18 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+Tue Dec 22 20:14:47 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/irb/context.rb: fix IRB::Inspector#keys_with_inspector [Bug #7598]
+	* vm_insnhelper.c: move vm_callee_setup_block_arg() (and related
+	  functions) to the latter location.
+	  This moving recovers performance a little.
+	  [Bug #11829]
 
-Wed Dec 26 23:26:15 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+Tue Dec 22 15:21:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/irb/context.rb: IRB::Context#use_readline= has been obsolete
-	  [Bug #6339].
+	* string.c (str_compat_and_valid): as scrub does nothing for dummy
+	  encoding string now, incompatible encoding is not a matter.
 
-Wed Dec 26 21:32:46 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+Tue Dec 22 14:31:28 2015  Toru Iwase  <tietew@tietew.net>
 
-	* lib/irb/context.rb: make a correct prompt from
-	  IRB.conf[:IRB_NAME] on irb [Bug #6338]. Patched by sho-h.
+	* ext/cgi/escape/escape.c (optimized_escape_html): CGI.escapeHTML
+	  should return unfrozen new string.
+	  [ruby-core:72426] [Bug #11858]
 
-Wed Dec 26 21:09:19 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+Tue Dec 22 05:39:58 2015  Takashi Kokubun  <takashikkbn@gmail.com>
 
-	* lib/irb/ext/math-mode.rb: make not able to change math-mode
-	  after irb starting [Bug #6302]. Patched by sho-h.
+	* ext/cgi/escape/escape.c (preserve_original_state): Preserve
+	  original state for tainted and frozen.  [Fix GH-1166]
+	  [ruby-dev:49451] [Bug #11855]
 
-Wed Dec 26 12:52:36 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+Tue Dec 22 03:57:20 2015  Eric Wong  <e@80x24.org>
 
-	* lib/irb/init.rb: change default debug level for
-	  irb[ruby-dev:46805], [Bug #6301].
+	* ext/socket/init.c (rsock_init_sock): check FD after validating
+	* test/socket/test_basicsocket.rb (test_for_fd): new
+	  [ruby-core:72418] [Bug #11854]
 
-Wed Dec 26 11:54:11 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Mon Dec 21 21:29:45 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* configure.in: enable -fPIE when checking -pie for fixing
-	  OpenBSD build error. Patch by George Koehler. Thank you!
-	  [Bug #7606] [ruby-core:51082]
-
-Wed Dec 26 07:31:24 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_enc_cr_str_copy_for_substr): empty string is always
-	  valid or 7bit.
-
-	* string.c (rb_str_enumerate_lines, rb_str_chop): reduce duplicated
-	  code.
-
-	* string.c (rb_str_enumerate_chars): prevent shared copy from GC.
-
-Wed Dec 26 01:31:16 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
-
-	* lib/irb/init.rb, lib/irb/context.rb: fix conf.debug_level=
-	  [Bug #6301] and fix irb command option: -- irb_debug_level for irb.
-
-Wed Dec 26 00:59:18 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
-
-	* lib/irb/ruby-lex.rb: improve RubyLex performance for large files
-	  [Bug #5202]. Patch by ryanmelt.
-
-Tue Dec 25 22:21:06 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
-
-	* lib/irb/output-method.rb: raise right exception when
-	  IRB::OutputMethod#print don't defined [Bug #6657].
-
-Tue Dec 25 22:06:33 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_trace.c (rb_threadptr_exec_event_hooks_and_pop_frame):
-	  pop a frame before JUMP_TAG() if exception occurred.
-	  This change fix bug of Ruby 1.9.
-	  [ruby-core:51128] [ruby-trunk - Bug #7624]
-
-	* vm_core.h (EXEC_EVENT_HOOK_AND_POP_FRAME): add to use
-	  `rb_threadptr_exec_event_hooks_and_pop_frame()'.
-
-	* vm.c (vm_exec): use EXEC_EVENT_HOOK_AND_POP_FRAME() while
-	  exception handling. While exception handling, if an exception
-	  is raised in hooks, need to pop current frame and raise this
-	  raised exception by hook.
-
-	* test/ruby/test_settracefunc.rb: add a test.
-
-Tue Dec 25 21:08:53 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
-
-	* lib/irb/init.rb, lib/irb/lc/ja/error.rb, lib/irb/lc/error.rb:
-	  raise exception when illegal RC_NAME_GENERATOR defined [Bug #6455].
-
-Tue Dec 25 19:22:17 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
-
-	* lib/irb/workspace.rb: define method to private on top-level irb
-	  [Bug #5776]. Patch by davidbalbert.
-
-Tue Dec 25 19:09:51 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* bignum.c, include/ruby/intern.h (rb_big_eql): exported.
-
-	* thread.c (recursive_check): object_id maybe a Bignum, not Fixnum on
-	  LLP64.  see also r38493 and r38548.
-	  reported by Heesob Park at [ruby-core:51083] [Bug #7607], and patched
-	  by shirosaki at [ruby-core:51095]
-
-Tue Dec 25 18:53:35 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h, eval_intern.h (CHECK_STACK_OVERFLOW): move
-	  CHECK_STACK_OVERFLOW() to vm_core.h and rename to
-	  CHECK_VM_STACK_OVERFLOW().
-	  This change is only move and rename.
-
-	* tool/instruction.rb: catch up above changes.
-
-	* vm.c, vm_insnhelper.c: ditto.
-
-	* vm_insnhelper.c (vm_stackoverflow): add a function to unify
-	  raising vm stackoverflow exception.
-
-Tue Dec 25 16:16:54 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h (RUBY_VM_THREAD_VM_STACK_SIZE): change default
-	  VM stack size (128 KB or  256 KB -> 512 KB or 1024 KB).
-	  This re-sizing corrects smaller value introduced at r38478.
-	  Newer value is same VM stack size of Ruby 1.9.
-	  [ruby-dev:46797] [ruby-trunk - Bug #7603]
-
-Tue Dec 25 13:38:12 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (compile_err_append, compile_warn_print, warn_print): use
-	  rb_write_error_str() instead of writing to rb_stderr directly.
-
-	* io.c (rb_write_error_str): a stopgap measure not to unblock GVL.
-	  warning from require seems to still have race condition errors.
-
-Tue Dec 25 00:59:29 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* node.h (NODE_OP_CDECL), compile.c (iseq_compile_each),
-	  parse.y (stmt, arg): allow scoped constant op-assignment.
-	  [ruby-core:40154] [Bug #5449]
-
-Mon Dec 24 04:56:48 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/net/http/generic_request.rb (Net::HTTPGenericRequest):
-	  set content-length to zero on empty post requests
-	  by Gregory Ostermayr <gregory.ostermayr@gmail.com>
-	  https://github.com/ruby/ruby/pull/201 fix GH-201
-
-Sun Dec 23 19:09:16 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* thread.c: rename methods:
-	    from Thread.async_interrupt_timing to Thread.handle_interrupt,
-	    from Thread.async_interrupted? to Thread.pending_interrupt?.
-	  Also rename option from `defer' to `never'.
-	  [ruby-core:51074] [ruby-trunk - Feature #6762]
-
-	* vm_core.c, thread.c: rename functions and data structure
-	  `async_errinfo' to `pending_interrupt'.
-
-	* thread.c: add global variables sym_immediate, sym_on_blocking and
-	  sym_never.
-
-	* cont.c, process.c, vm.c, signal.c: ditto.
-
-	* lib/sync.rb, lib/thread.rb: catch up this renaming.
-
-	* test/ruby/test_thread.rb: ditto.
-
-Sun Dec 23 17:57:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/profiler.rb (Profiler__::PROFILE_PROC, print_profile): store
-	  profile data per threads for concurrent-execution.
-	  [ruby-core:22046] [Bug #1152]
-
-	* lib/profiler.rb (Profiler__::Wrapper): support calling singleton
-	  methods of an instance of BasicObject.
-
-	* lib/profiler.rb (Profiler__::PROFILE_PROC): use TracePoint.
-
-Sun Dec 23 16:13:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/erb.rb: typos for ERB::new link
-
-Sun Dec 23 16:06:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/erb.rb: Document ERB::new trim_mode '-' for lines ending in -%>
-	  [ruby-core:51084] [Bug #7608]
-
-Sun Dec 23 15:25:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/irb/ruby-lex.rb: Add handling for %i and %I quoting to irb
-	  Patch by flori [ruby-core:49550] [Bug #7392] [Github Issue #157]
-
-Sun Dec 23 15:05:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_eval.c (rb_check_funcall_with_hook): rb_check_funcall with hook
-	  which is called before calling method_missing or target method.
-
-	* marshal.c (w_object, r_object0): use rb_check_funcall_with_hook
-	  instead of respond_to? and call.
-
-Sun Dec 23 14:52:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* re.c (rb_reg_eqq): doc: #=== is not a synonym for #=~, added example
-	  [ruby-dev:46746] [Bug #7571]
-
-Sun Dec 23 14:35:13 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread.c (BLOCKING_REGION): if fail_if_interrupted is false ignore
-	  the result of blocking_region_begin(), since it always is true in
-	  that case.  suppress "uninitialized" warnings.
-
-Sun Dec 23 09:34:07 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/commands/check_command.rb:  Added --doctor and --dry-run
-	  options to clean up after failed uninstallation.
-	* test/rubygems/test_gem_commands_check_command.rb:  Test for above.
-
-	* lib/rubygems/commands/push_command.rb:  Allow pushes from RubyGems
-	  2.0.0.preview3
-
-	* lib/rubygems/commands/update_command.rb:  Use Gem.ruby_version
-
-	* lib/rubygems/dependency.rb:  Update style.
-
-	* lib/rubygems/installer.rb:  Ensure installed gem specifications will
-	  be useable.  Refactor.
-	* test/rubygems/test_gem_installer.rb:  ditto.
-
-	* lib/rubygems/validator.rb:  Fixed bug with unreadable files.
-
-	* lib/rubygems.rb:  Fixed broken methods.
-	* test/rubygems/test_gem.rb:  Test for above.
-
-	* test/rubygems/test_gem_commands_push_command.rb:  Fixed overridden
-	  Gem.latest_rubygems_version
-
-Sun Dec 23 01:52:01 2012  Akinori MUSHA  <knu@iDaemons.org>
-
-	* io.c (rb_io_lines, rb_io_bytes, rb_io_chars, rb_io_codepoints):
-	  Deprecate IO#{lines,bytes,chars,codepoints} and those of ARGF.
-	  [Feature #6670]
-
-	* ext/stringio/stringio.c (strio_lines, strio_bytes, strio_chars)
-	  (strio_codepoints): Deprecate
-	  StringIO#{lines,bytes,chars,codepoints}. [Feature #6670]
-
-	* ext/zlib/zlib.c (rb_gzreader_lines, rb_gzreader_bytes):
-	  Deprecate Zlib::GzipReader#{lines,bytes}. [Feature #6670]
-
-Sat Dec 23 01:35:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/optparse.rb: Documentation for OptionParser to remove 'shadowed
-	  outer local variable' from example and make obvious ARGV with
-	  non-option arguments.
-	  Patch by Marcus Stollsteimer [ruby-core:47460] [Bug #6997]
-
-Sat Dec 23 00:08:00 2012  Kenta Murata  <mrkn@mrkn.jp>
-
-	* include/ruby/intern.h: add the prototype declaration of
-	  rb_num_coerce_bit.
-
-	* numeric.c (rb_num_coerce_bit): the new coerce function for bitwise
-	  binary operation.
-
-	* bignum.c (rb_big_and): use coerce to convert the argument, which isn't
-	  a Fixnum nor a Bignum, to the corresponding Integer object so that
-	  bitwise operations can support Integer-mimic objects.
-	  [Bug #1792] [ruby-core:39491]
-
-	* bignum.c (rb_big_or): ditto.
-
-	* bignum.c (rb_big_xor): ditto.
-
-	* numeric.c (bit_coerce): ditto.
-
-	* numeric.c (fix_and): ditto.
-
-	* numeric.c (fix_or): ditto.
-
-	* numeric.c (fix_xor): ditto.
-
-	* test/ruby/test_integer.rb: add tests for the above changes.
-
-	* test/ruby/test_bignum.rb: ditto.
-
-Sun Dec 23 00:04:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* internal.h (QUOTE, QUOTE_ID): quote unprintable chars in strings and
-	  IDs. [Bug #7574] [ruby-dev:46749]
-
-	* string.c (rb_str_quote_unprintable): ditto.
-
-Sat Dec 22 23:59:18 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (rb_compile_error, rb_compile_warn, rb_compile_warning),
-	  (rb_warn, rb_warning): support PRIsVALUE.
-
-Sat Dec 22 22:04:58 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* cont.c (rb_fiber_start): unify conditions.
-
-Sat Dec 22 21:47:55 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* io.c (rb_io_wait_writable): use rb_thread_check_ints() instead
-	  of rb_thread_fd_writable().
-	* io.c (rb_io_wait_readable): ditto.
-
-Sat Dec 22 20:31:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (rb_mod_const_get): symbol cannot be nested constant name.
-
-Sat Dec 22 19:26:35 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (rb_mod_const_get): check more strictly.  [ruby-dev:46748]
-	  [Bug #7573]
-
-Wed Dec 19 02:34:48 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* cont.c (rb_fiber_start): in case of jump with TAG_FATAL,
-	  enqueue error into async_errinfo_queue, because you cannot call
-	  TH_TAG_JUMP() in this function. [ruby-dev:45218]  [Bug #5993]
-
-	* thread.c (rb_threadptr_execute_interrupts): now INT2FIX(TAG_FATAL)
-	  can be popped from async_errinfo_queue.
-
-	* vm.c (rb_vm_make_jump_tag_but_local_jump): revert r38441.
-	  rb_vm_make_jump_tag_but_local_jump() shouldn't return exception
-	  in case of state == TAG_FATAL.
-
-	* test/ruby/test_fiber.rb (test_exit_in_fiber): fix a test to illuminate
-	  Thread.exit should terminate current Thread.
-
-Sat Dec 22 13:15:08 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* gc.c (obj_id_to_ref): add a macro to treat Bignum object id.
-	  This follows the change r38493.
-
-	* gc.c (id2ref): fix for working fine with Bignum object id on x64
-	  Windows.
-	* gc.c (wmap_finalize): ditto.
-
-Sat Dec 22 11:30:21 2012  Masaki Matsushita  <glass.saga@gmail.com>
-
-	* struct.c (make_struct): remove junk ID check to allow members who
-	  have junk name like "foo\000".
-	* test/ruby/test_struct.rb: Test for above.
-	  [Bug #7575] [ruby-dev:46750]
-
-Sat Dec 22 05:34:54 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/net/http.rb:  Requests may be created with a URI which sets the
-	  Host header.  Responses contain the requested URI for easier redirect
-	  following.  [ruby-trunk - Feature #6482]
-	* lib/net/http/generic_request.rb:  ditto.
-	* lib/net/http/response.rb:  ditto.
-	* NEWS (net/http):  Updated for above.
-	* test/net/http/test_http.rb:  Tests for above.
-	* test/net/http/test_http.rb:  ditto.
-	* test/net/http/test_httpresponse.rb:  ditto.
-
-Sat Dec 22 02:35:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/irb/slex.rb(#match): Typo, should be D_DETAIL
-	  [ruby-core:51071] [Bug#7600]
-
-Sat Dec 22 02:29:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/irb/input-method.rb, lib/irb.rb: Typo in
-	  InputMethod#readable_atfer_eof? to #readable_after_eof?
-	  [ruby-core:51069] [Bug #7599]
-
-Sat Dec 22 02:19:38 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* vm_dump.c (rb_vm_bugreport): revert r38533.
-	* addr2line.c (fill_lines): add ELF sanity check.
-	  [Bug #7597] [ruby-dev:46786]
-
-Sat Dec 22 02:05:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/irb/inspector.rb, lib/irb/context.rb: Move IRB::INSPECTORS and
-	  class methods to IRB::Inspector [ruby-core:51067][Bug #7598]
-
-Sat Dec 22 00:28:46 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* object.c (rb_obj_hash): shouldn't assume object_id can be long.
-	  based on a patch by Heesob Park at [ruby-core:51060].
-	  cf. [Backport #7454]
-
-Fri Dec 21 23:15:25 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* ext/fiddle/lib/fiddle/struct.rb (Fiddle::CStructEntity#set_ctypes):
-	  CPtr -> Pointer.
-	* test/fiddle/test_c_struct_entry.rb
-	  (Fiddle::TestCStructEntity#test_aref_pointer):
-	  Added the test for the above.
-
-Fri Dec 21 23:12:05 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* ext/fiddle/lib/fiddle/struct.rb (Fiddle::CStructEntity#set_ctypes):
-	  CPtr -> Pointer.
-	* test/fiddle/test_c_struct_entry.rb
-	  (Fiddle::TestCStructEntity#test_aref_pointer_array):
-	  Added the test for the above.
-
-Fri Dec 21 22:43:36 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* ext/fiddle/lib/fiddle/import.rb (Fiddle::Importer#sizeof):
-	  CPtr -> Pointer.
-	* test/fiddle/test_import.rb (Fiddle::TestImport#test_sizeof):
-	  Added the test for the above.
-
-Fri Dec 21 22:34:17 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* test/ruby/test_iseq.rb: disable a test which checks features
-	  removed at r38532.
-
-Fri Dec 21 22:02:00 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/{dir.h,win32.c} (rb_w32_readdir): removed old rb_w32_readdir()
-	  and renamed from rb_w32_readdir_with_enc().
-	  [ruby-core:24864] [Feature #1927]
-
-	* dir.c (READDIR): follow above change.
-
-Fri Dec 21 21:12:54 2012  Masaya Tarui  <tarui@ruby-lang.org>
-
-	* vm_dump.c (rb_vm_bugreport): commentout addr2line call temporarily
-	  in order to avoid segv. anyone can fix addr2line?
-	  [Bug #7597] [ruby-dev:46786]
-
-Fri Dec 21 20:38:28 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.c (Init_ISeq): remove definition of the following methods:
-	  ISeq#line_trace_all and ISeq#line_trace_specify because they are
-	  half baked.
-	  C APIs are remained as experimental. These functions will be
-	  renamed, removed their parameters may be changed.
-	  You can use these methods by C exts. Please give us your comments.
-
-Fri Dec 21 20:21:04 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_trace.c (tracepoint_new): add code to support specified thread.
-	  But not tested and this feature is not supported officially.
-
-Fri Dec 21 19:37:15 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* ruby.c (process_options): need to acquire env from TOPLEVEL_BINDING
-	  each time.
-	  `bind->env' may update after `eval()'.
-	   [Bug #7536]
-
-Fri Dec 21 18:46:50 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* include/ruby/debug.h, vm_core.h: define rb_trace_arg_t at
-	  include/ruby/debug.h (move from vm_core.h).
-
-Fri Dec 21 17:48:15 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h, vm_trace.c: fix multi-threading bug for tracing.
-	  Move `trace_arg' from rb_tp_t::trace_arg to rb_thread_t::trace_arg.
-	  `trace_arg' may changed by multiple threads.
-	  rb_thread_t::trace_arg can represent rb_thread_t::trace_running
-	  (null or non-null) and rb_thread_t::trace_running is removed.
-	  After that, `rb_tp_t' is not needed to check tracing or not
-	  (A running thread knows tracing or not). This is why I remove
-	  tp_attr_check_active() and make new function get_trace_arg().
-
-	  And this modification disable to work the following code:
-	    TracePoint.trace{|tp|
-	      Thread.new{p tp.event} # access `tp' from other threads.
-	    }
-	  I believe nobody mix threads at trace procedure.
-	  This is current limitation.
-	  [Bug #7590]
-
-	* cont.c (fiber_switch, rb_cont_call): use rb_thread_t::trace_arg
-	  instead of rb_thread_t::trace_running.
-
-	* test/ruby/test_settracefunc.rb: add a multi-threading test.
-
-Fri Dec 21 16:38:08 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* template/id.h.tmpl (ID2ATTRSET): compile time constant macro for
-	  ID_ATTRSET.
-
-	* defs/id.def (KeywordError): check duplication.
-
-	* defs/id.def: support for other scope IDs,
-	  ID_{INSTANCE,GLOBAL,CONST,CLASS}.
-
-Fri Dec 21 14:45:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/irb.rb, lib/irb/*: Documentation for IRB
-
-Fri Dec 21 11:31:02 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rake/*:  Updated to rake 0.9.6
-	* doc/rake/*:  ditto
-	* test/rake/*:  ditto
-
-Fri Dec 21 08:56:34 2012  Masaya Tarui  <tarui@ruby-lang.org>
-
-	* vm_trace.c (rb_suppress_tracing): remove unused variable 'vm_tracing'
-
-Fri Dec 21 01:01:45 2012  Masaya Tarui  <tarui@ruby-lang.org>
-
-	* lib/irb/completion.rb (CompletionProc): support completion of
-	  instance variables. [ruby-dev:46710] [Bug #7520]
-
-Thu Dec 20 20:58:25 2012  Masaya Tarui  <tarui@ruby-lang.org>
-
-	* vm_trace.c (rb_suppress_tracing): bugfix for vm->trace_running
-	  counter. And if tracing is already true, vm_trace_running ops is
-	  skipped to control overflow.
-
-Thu Dec 20 18:29:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (RTEST, NIL_P): make bare expressions without
-	  outermost parentheses.
-
-Thu Dec 20 17:29:00 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* NEWS: fix the description for Refinements.
-
-Thu Dec 20 16:53:59 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_core.h (rb_vm_defineclass_type_t),
-	  compile.c (iseq_compile_each), insns.def (defineclass): change the
-	  meaning of the third operand of defineclass as follows:
-	    lower 3bits: the type of the defineclass
-	                   0 = class, 1 = singleton class, 2 = module
-	    4th bit: a flag represents whether the defineclass is scoped
-	               0 = not scoped (e.g., class Foo)
-		       1 = scoped (e.g., class Bar::Baz)
-	    5th bit: a flag represents whether the superclass is specified
-	               0 = not specified (e.g., class Foo)
-	               1 = specified (e.g., class Bar < Foo)
-	  If the superclass is specified and is not a class, a TypeError
-	  should be raised.  [ruby-dev:46747] [Bug #7572]
-
-	* test/ruby/test_class.rb: related test.
-
-Thu Dec 20 16:52:37 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
-
-	* NEWS: announce AEAD encryption support in the OpenSSL extension.
-
-Thu Dec 20 16:40:13 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* gc.c (nonspecial_obj_id): VALUE is not compatible with Fixnum on
-	  LLP64 platform, such as 64bit Windows.
-	  reported by Heesob Park at [ruby-core:50255] [Bug #7454], and the
-	  fix is suggested by akr.
-
-Thu Dec 20 16:39:04 2012  Martin Bosslet  <Martin.Bosslet@gmail.com>
-
-	* ext/openssl/ossl_cipher.c: fix errors for installations that do not
-	  feature Authenticated Encryption.
-	* ext/openssl/extconf.rb: detect presence of EVP_CTRL_GCM_GET_TAG to
-	  determine whether Authenticated Encryption can be used.
-	  [Feature #6980] [ruby-core:47426]
-
-Thu Dec 20 15:55:46 2012  Martin Bosslet  <Martin.Bosslet@gmail.com>
-
-	* ext/openssl/ossl.c: do not use FIPS_mode_set if not available.
-	* test/openssl/utils.rb: revise comment about setting FIPS mode to
-	  false.
-	* test/openssl/test_fips.rb: remove tests that cause errors on
-	  ruby-ci.
-	  [Feature #6946] [ruby-core:47345]
-
-Thu Dec 20 15:22:59 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/parser/ruby.rb:  Ignore methods defined on constants to
-	  prevent modules with the names of constants from appearing in the
-	  documentation.
-	* test/rdoc/test_rdoc_parser_ruby.rb:  Test for the above.
-
-Thu Dec 20 15:00:33 2012  Martin Bosslet  <Martin.Bosslet@gmail.com>
-
-	* ext/openssl/ossl_cipher.c: add support for Authenticated Encryption
-	  with Associated Data (AEAD) for OpenSSL versions that support the
-	  GCM encryption mode. It's the only mode supported for now by OpenSSL
-	  itself. Add Cipher#authenticated? to detect whether a chosen mode
-	  does support Authenticated Encryption.
-	* test/openssl/test_cipher.rb: add tests for Authenticated Encryption.
-	  [Feature #6980] [ruby-core:47426] Thank you, Stephen Touset for
-	  providing a patch!
-
-Thu Dec 20 12:56:53 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/markup/to_html.rb (class RDoc):  Added current heading and
-	  top links to headings.
-	* lib/rdoc/generator/template/darkfish/rdoc.css:  ditto
-	* test/rdoc/test_rdoc_generator_markup.rb:  Test for above
-	* test/rdoc/test_rdoc_markup_to_html.rb:  ditto
-
-	* test/rdoc/test_rdoc_comment.rb:  Removed trailing whitespace.
-
-Thu Dec 20 11:05:26 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/ruby/envutil.rb (assert_valid_syntax): move from
-	  test_syntax.rb.
-
-	* test/ruby/envutil.rb (assert_normal_exit): validate syntax before
-	  running because this assertion passes even if the code fails by
-	  SyntaxError.
-
-Thu Dec 20 10:29:58 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
-
-	* test/openssl/test_pkey_dh.rb: revert special treatment of
-	  FIPS-capable installations since FIPS mode is now disabled for the
-	  tests.
-
-Thu Dec 20 10:23:12 2012  Martin Bosslet  <Martin.Bosslet@gmail.com>
-
-	* ext/openssl/ossl.c: add OpenSSL.fips_mode= to allow enabling FIPS
-	  mode manually.
-	* test/openssl/utils.rb: turn off FIPS mode for tests. This prevents
-	  OpenSSL installations with FIPS mode enabled by default from raising
-	  FIPS-related errors during the tests.
-	* test/openssl/test_fips.rb: add tests for FIPS-capable OpenSSL
-	  installations.
-	  [Feature #6946] [ruby-core:47345]
-
-Thu Dec 20 06:59:52 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c: support variable VM/Machine stack sizes.
-	  Specified by the following environment variables:
-	    - RUBY_THREAD_VM_STACK_SIZE: vm stack size used at thread creation.
-	      default: 128KB (32bit CPU) or 256KB (64bit CPU).
-	    - RUBY_THREAD_MACHINE_STACK_SIZE: machine stack size used at thread
-	      creation. default: 512KB or 1024KB.
-	    - RUBY_FIBER_VM_STACK_SIZE: vm stack size used at fiber creation.
-	      default: 64KB or 128KB.
-	    - RUBY_FIBER_MACHINE_STACK_SIZE: machine stack size used at fiber
-	      creation. default: 256KB or 256KB.
-	  This values are specified at launched timing. You can not change
-	  these values at running time.
-	  Environ variables are only *hints* because:
-	    - They are aligned to 4KB.
-	    - They have minimum values (depend on OSs).
-	    - Machine stack settings are ignored by some OSs.
-	  Default values especially fiber stack sizes are increased.
-	  This change affect Fiber's behavior:
-	    (1) You can run more complex program on a Fiber.
-	    (2) You can not make many (thousands) Fibers because of
-	        lack of address space (on 32bit CPU).
-	  If (2) bothers you,
-	    (a) Use 64bit CPU with big memory, or
-	    (b) Specify RUBY_FIBER_(VM|MACHINE)_STACK_SIZE correctly.
-	  You need to choose correct stack size carefully. These values
-	  are completely rely on systems (OS/compiler and so on).
-	  [Feature #4614], [Bug #7212]
-
-	* vm_core.h (rb_vm_t::default_params): add to record above settings.
-
-	* vm.c (RubyVM::DEFAULT_PARAMS): add new constant to see
-	  above setting.
-
-	* thread_pthread.c: support RUBY_THREAD_MACHINE_STACK_SIZE.
-
-	* cont.c: support RUBY_FIBER_(VM|MACHINE)_STACK_SIZE.
-
-	* test/ruby/test_fiber.rb: add tests for above.
-
-	* test/ruby/test_thread.rb: ditto.
-
-Thu Dec 20 06:25:44 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* test/ruby/test_fiber.rb: remove a strange single quote character.
-	  With this character, this script exits by SyntaxError.
-
-Thu Dec 20 01:03:00 2012  Zachary Scott  <zachary@zacharyscott>
-
-	* ext/.document: Add missing ext modules to .document
-	  Patch by Ryunosuke SATO [Fixes Github #224]
-
-Wed Dec 19 23:52:16 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ruby.c (load_file_internal): use original C string as the filename
-	  for parser.
-	  reported by whiteleaf at [ruby-list:49085] [ruby-dev:46738]
-	  [Bug #7562]
-
-Wed Dec 19 23:36:12 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* marshal.c (marshal_dump, marshal_load): fix SEGV during make rdoc
-	  and test failure in TestMarshal#test_gc and test_context_switch
-	  on SPARC Solaris 10 compiled with Oracle Solaris Studio 12.3.
-	  [Bug #7591] [ruby-dev:46772]
-
-Wed Dec 19 19:34:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (rb_mod_const_get): nul byte is invalid as constant name.
-
-Wed Dec 19 17:54:18 2012  Masaya Tarui  <tarui@ruby-lang.org>
-
-	* vm_trace.c (rb_threadptr_exec_event_hooks): get rid of race
-	  condition. [Bug #7589] [ruby-dev:46763]
-
-Wed Dec 19 16:30:28 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/literals.rdoc:  Added 0d decimal format.  Thanks Nobu!
-
-Wed Dec 19 16:19:36 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/methods.rdoc:  Fixed typo.  Thanks to Josh Susser.
-
-Wed Dec 19 16:18:22 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/commands/query_command.rb:  Refactored to improve
-	  maintainability.
-	* test/rubygems/test_gem_commands_query_command.rb:  Note default gems
-	  in gem list details.
-
-	* lib/rubygems/uninstaller.rb:  Detect all gems for uninstallation.
-	  This allows duplicate installs of default gems to be removed.
-	* lib/rubygems/specification.rb:  Allow use of ::each_spec.
-	* lib/rubygems/test_case.rb:  Added install_default_gems.
-	* test/rubygems/test_gem_commands_uninstall_command.rb:  Moved test
-	  down to the uninstaller tests.
-	* test/rubygems/test_gem_uninstaller.rb:  Test for uninstallation of
-	  default gems and duplicate default gems.
-
-Wed Dec 19 15:23:50 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/methods.rdoc:  Add () around keyword arguments example for
-	  consistency.  Thanks to Josh Susser.
-
-Wed Dec 19 01:51:24 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* vm.c (rb_vm_jump_tag_but_local_jump): remove unnecessary 2nd
-	  argument.
-
-	* load.c (rb_load_internal): ditto.
-
-	* eval_intern.h (rb_vm_jump_tag_but_local_jump): ditto.
-
-Tue Dec 18 18:57:58 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* io.c (rb_io_wait_writable): don't use rb_thread_wait_fd()
-	  because it is for waiting until io readable.
-
-	* io.c (rb_io_wait_writable): always use rb_thread_fd_writable()
-	  instead of bare rb_wait_for_single_fd(). we shouldn't ignore
-	  return value.
-	* io.c (rb_io_wait_readable): ditto. always use rb_thread_wait_fd().
-
-Tue Dec 18 18:55:33 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (rb_thread_wait_fd_rw): fix infinite loop bug.
-	  rb_wait_for_single_fd() never return positive number.
-
-Tue Dec 18 17:24:40 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/encoding.rb:  Do not remove #! line from document when
-	  setting encoding.  This allows ruby executables to be parsed as ruby
-	  files.
-	* test/rdoc/test_rdoc_encoding.rb:  Test for above.
-
-	* lib/rdoc/parser.rb:  Set the parser file name of ruby executables
-	  correctly.
-	* test/rdoc/test_rdoc_parser.rb:  Test for above.
-
-Tue Dec 18 16:46:15 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/literals.rdoc:  Used simplified heredoc example that
-	  doesn't include method definition.  Added heredoc with backticks.
-
-Tue Dec 18 16:38:51 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/store.rb:  Work around RDoc stores from older versions of
-	  RDoc.
-	* test/rdoc/test_rdoc_store.rb:  Test for above.
-
-Tue Dec 18 16:31:20 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/ruby_lex.rb:  Return a TkHEREDOC instead of a TkSTRING when
-	  the heredoc identifier is followed by a line-end.  This allows proper
-	  display of some HEREDOCs in source view.
-	* lib/rdoc/ruby_token.rb:  Added TkHEREDOC
-	* test/rdoc/test_rdoc_ruby_lex.rb:  Test for above.
-
-Tue Dec 18 09:45:14 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* vm.c (rb_vm_make_jump_tag_but_local_jump): take care of the case
-	  TAG_JUMP() with TAG_FATAL (ex. rb_fatal()). [ruby-core:50917]
-	  [Bug #7570]
-
-	* test/ruby/test_fiber.rb (test_fatal_in_fiber): add a test for above.
-
-	* ext/-test-/fatal/extconf.rb, ext/-test-/fatal/rb_fatal.c: ditto.
-
-Tue Dec 18 13:17:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* vm_trace.c (tracepoint_attr_defined_class): Clean up rdoc for
-	  TracePoint#defined_class
-
-Tue Dec 18 12:15:59 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/specification.rb:  Fixed ruby output of requirements
-	  with multiple version specifiers.
-	* test/rubygems/test_gem_ext_cmake_builder.rb:  Only look for specific
-	  lines in cmake output.  Should fix [ruby-trunk - Bug #7579]
-
-Tue Dec 18 11:45:26 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/literals.rdoc:  Added 0o octal integers.
-
-Tue Dec 18 12:28:52 2012  Martin Bosslet  <Martin.Bosslet@gmail.com>
-
-	* test/openssl/test_ssl.rb: Use :TLSv1_2_client explicitly in
-	  test_tls_v1_2 to prevent upstream bug.
-	  [Bug #7197] [ruby-dev:46240]
-
-Tue Dec 18 11:52:34 2012  Martin Bosslet  <Martin.Bosslet@gmail.com>
-
-	* ext/openssl/lib/ssl.rb: Enable insertion of empty fragments as a
-	  countermeasure for the BEAST attack by default. The default options
-	  of OpenSSL::SSL:SSLContext are now:
-	  OpenSSL::SSL::OP_ALL & ~OpenSSL::SSL::OP_DONT_INSERT_EMPTY_FRAGMENTS
-	  [Bug #5353] [ruby-core:39673]
-
-	* test/openssl/test_ssl.rb: Adapt tests to new SSLContext default.
-
-	* NEWS: Announce the new default.
-
-Tue Dec 18 06:36:12 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: remove `VM_METHOD_TYPE_CFUNC_FRAMELESS' method type.
-	  This method type is for optimized CFUNC such as Fixnum#+ and so on.
-	  This feature is half-baked and no way to use them.
-	  [Background]
-	  Now, VM has opt_plus instructions to optimize `+' methods for
-	  some Classes (such as Fixnum, Float (flonum)). We call this
-	  type of instructions as `specialized instructions'.
-	  This simple technique improve simple program dramatically.
-	  However, we can make specialized instructions for only several
-	  types (classes) and selectors (method names) because a large
-	  instruction will be slow. In other words, this technique has no
-	  extensibility.
-	  To overcome this problem, VM_METHOD_TYPE_CFUNC_FRAMELESS was
-	  introduced (r37198). This type is a variant of CFUNC, but called
-	  their functions directly without building a method frame.
-	  Any CFUNC method can be defined as frameless methods if a method
-	  is not needed to make method frame. Frameless methods are faster
-	  as specialized instructions (a bit slower, but no need to care).
-	  No problem described at
-	  http://charlie.bz/blog/why-do-singleton-methods-make-ruby-slow
-	  because this technique doesn't see class, but see method body
-	  itself. Alias is also no problem.
-	  [Problem]
-	  However, we can't set frameless method type for polymorphic methods
-	  such as Array#[]. Necessity for method frame depends on which
-	  parameter type. For example, Fixnum#+ needs method frame if
-	  coerce is needed. Current VM_METHOD_TYPE_CFUNC_FRAMELESS is not
-	  flexible and need more tuning to introduce it.
-	  Expected behavior of frameless method type may be:
-	    result = optimized_cfunc(params); /* call optimized cfunc */
-	    if (result == Qundef) { result = normal_cfunc(); }
-	  This is why I say this feature is half-baked.
-	  We need to learn primitive method in Smalltalk more.
-	  (I heard this name at RubyConf Taiwan this month. Thanks!)
-	  [Conclusion]
-	  I remove this feature and consider again.
-	  This feature goes to next minor (2.1?).
-	  Nobody may use this feature and there is no compatibility issue.
-
-	* proc.c (rb_method_entry_arity): ditto.
-
-	* vm_eval.c, vm_insnhelper.c, vm_method.c: ditto.
-
-Tue Dec 18 04:58:22 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_trace.c (fill_id_and_klass): TracePoint#defined_class returns
-	  singleton class. `set_trace_func' passed attached class (which is
-	  attached/modified by singleton class) by 6th block parameter if it
-	  is singleton class. Previous behavior follows this spec.
-	  However, this method named `defined_class' should return singleton
-	  class directly because singleton methods are defined in singleton
-	  class. There are no compatible issue because TracePoint is introduced
-	  after 2.0.
-	  But compatibility with `set_trace_func' is broken. This means that
-	  you can not replace all `set_trace_func' code with TracePoint
-	  without consideration of this behavior.
-	  [Bug #7554]
-
-	* test/ruby/test_settracefunc.rb: change a test to catch up
-	  an above change.
-
-Tue Dec 18 03:03:10 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/visitors/to_ruby.rb: speed up node mapping so
-	  common cases are evaluated first.  Thanks Kevin Menard!
-
-Tue Dec 18 02:35:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/optparse.rb: Remove 'developer documentation' section from rdoc
-	  Patch by Marcus Stollsteimer [ruby-core:50526][Bug #7504]
-
-Tue Dec 18 02:35:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/matrix.rb (#lup): typo in example [ruby-core:50946][Bug #7582]
-
-Mon Dec 17 18:03:34 2012  Charlie Somerville  <charlie@charliesomerville.com>
-
-	* class.c (rewrite_cref_stack, clone_method): rewrite a method's cref
-	  stack when cloning into a new class to allow lexical const lookup to
-	  work as expected [ruby-core:47834] [Bug #7107]
-	* test/ruby/test_class.rb (class TestClass): related test
-
-Mon Dec 17 13:56:55 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* io.c (io_flush_buffer_sync2): avoid to return 0. because
-	  rb_thread_call_without_gvl2 uses 0 internally.
-	* io.c (io_flush_buffer_async2): adapt the above.
-
-Mon Dec 17 12:05:32 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax/methods.rdoc:  Added a description of singleton methods.
-
-Mon Dec 17 11:35:57 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/.document:  Added doc/syntax
-
-Mon Dec 17 11:25:32 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/syntax.rdoc:  Added syntax guide table of contents
-	* doc/syntax/exceptions.rdoc:  Syntax guide for exceptions
-	* doc/syntax/literals.rdoc:  Syntax guide for literals
-	* doc/syntax/methods.rdoc:  Syntax guide for methods
-
-Mon Dec 17 07:59:40 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems.rb:  Updated VERSION
-
-	* test/rubygems/test_gem_installer.rb:  Fixed ambiguous first argument
-	  warning.
-
-	* test/rubygems/test_gem_rdoc.rb:  RDoc generation depends on installed
-	  version of RDoc.
-
-Sun Dec 16 02:04:41 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* signal.c (rb_sigaltstack_size): cast sysconf() return value
-	  explicitly. Fix compile error on Mac OS X.
-
-Sun Dec 16 00:39:43 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* cont.c (rb_fiber_start): don't enqueue Qnil to async_errinfo_queue.
-	  rb_vm_make_jump_tag_but_local_jump() could return Qnil (ex. when
-	  finished by Thread.exit). [ruby-dev:45218] [Bug #5993]
-
-	* test/ruby/test_fiber.rb (test_exit_in_fiber): add test for it.
-
-Sat Dec 15 23:56:51 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* ext/fiddle/pointer.c (rb_fiddle_ptr2cptr): fix error message
-	  forgotten to be changed from DL to Fiddle.
-
-Sat Dec 15 23:14:32 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* signal.c (default_handler): remove rb_register_sigaltstack()
-	  call. sigaltstack was already registered when creating threads.
-
-Sat Dec 15 23:08:56 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* signal.c (rb_sigaltstack_size): new. calculate stack size for
-	  sigsegv handler. enlarge value when x86 or x86_64 on Linux.
-	  Linux has very small MINSIGSTKSZ size (2048 bytes) and
-	  our sigsegv routine need 5KiB at least. [Bug #7141]
-	* internal.h: add declaration of rb_sigaltstack_size().
-	* vm_core.h: remove ALT_STACK_SIZE definition.
-
-	* signal.c (rb_register_sigaltstack): replace ALT_STACK_SIZE with
-	  rb_sigaltstack_size();
-	* gc.c (Init_heap): ditto.
-	* vm.c (th_init): ditto.
-
-Sat Dec 15 18:24:21 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* rational.c (f_round_common): should check overflow.
-
-Sat Dec 15 18:00:00 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* rational.c (float_rationalize): reduced.
-
-Sat Dec 15 14:18:44 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* io.c (finish_writeconv): uses rb_write_internal2 if
-	  fptr->write_lock have.
-
-Sat Dec 15 13:57:08 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (rb_mutex_owned_p): remove static.
-	* io.c (io_flush_buffer): don't hold mutex if already have.
-	  Now recursive lock may occur when following scenario.
-	  fptr_finalize -> finish_writeconv_sync -> finish_writeconv
-	  -> io_fflush.
-
-Sat Dec 15 13:38:30 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* io.c (io_flush_buffer): uses io_flush_buffer_async2 instead of
-	  io_flush_buffer_async.
-	* io.c (io_flush_buffer_async2): new helper function for
-	  io_flush_buffer. It uses rb_thread_call_without_gvl2() instead
-	  of rb_thread_io_blocking_region.
-	* io.c (io_flush_buffer_sync2): new helper function for
-	  io_flush_buffer_async2.
-
-Sat Dec 15 13:04:26 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* io.c (internal_write_func2): new helper function for rb_write_internal2().
-	* io.c (rb_write_internal2): new function. it uses
-	  rb_thread_call_without_gvl2() instead of rb_thread_io_blocking_region().
-	* io.c (rb_binwrite_string): uses rb_write_internal2 instead of
-	  rb_write_internal. [Bug #7134]
-
-Sat Dec 15 12:55:29 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* io.c (rb_io_wait_writable): add to call rb_thread_wait_fd()
-	  likes rb_io_wait_readable.
-
-Sat Dec 15 11:54:50 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* io.c (rb_io_wait_writable): don't call rb_thread_fd_writable()
-	  when EINTR. EINTR mean signal interrupt was happen. We don't
-	  need any wait.
-
-Sat Dec 15 11:53:36 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (rb_thread_wait_fd_rw): remove silly rb_thread_alone()
-	  check.
-
-Sat Dec 15 10:22:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread.c (rb_thread_polling): revert but deprecate.
-
-	* include/ruby/intern.h (rb_thread_polling): deprecate.
-
-Sat Dec 15 08:37:01 2012  Masaya Tarui  <tarui@ruby-lang.org>
-
-	* test/rubygems/test_gem_ext_cmake_builder.rb (test_self_build):
-	  get rid of false positive.
-
-Sat Dec 15 08:05:56 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* test/ruby/test_thread.rb (test_uninitialized, test_backtrace,
-	test_thread_timer_and_interrupt, test_thread_join_in_trap,
-	test_thread_join_current, test_thread_join_main_thread,
-	test_main_thread_status_at_exit, test_thread_status_in_trap,
-	test_thread_status_raise_after_kill, test_mutex_owned,
-	test_mutex_owned2): move these tests from TestThreadGroup class
-	  to TestThread because they are not thread group tests.
-
-	* test/ruby/test_thread.rb (test_thread_status_raise_after_kill):
-	  add t.join.
-
-	* test/ruby/test_threadgroup.rb: new file. moved ThreadGroup test
-	  from test_thread.rb.
-
-Sat Dec 15 08:02:11 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* test/ruby/test_thread.rb (TestThread::Thread::new.): remove
-	  th.abort_on_exception change. Test template shouldn't change
-	  global flag. It prevent to test a normal case.
-
-Sat Dec 15 06:15:14 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* configure.in (HAVE_GCC_ATOMIC_BUILTINS):  Set -march=i486 to enable
-	  __sync_val_compare_and_swap.  Patch by KOSAKI Motohiro.
-	  [ruby-trunk - Bug #7485]
-
-Sat Dec 15 03:42:34 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* ext/.document: add fiddle/pointer.c, fiddle/handle.c, and
-	  fiddle/win32/lib as documentation.
-
-Sat Dec 15 03:06:40 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* file.c (rb_file_flock): use rb_thread_wait_for() instead of
-	  rb_thread_polling(). When getting EAGAIN, we need to wait a
-	  while even if no multi threading.
-	* thread.c (sleep_for_polling, rb_thread_polling) removed.
-
-Sat Dec 15 00:03:31 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* signal.c (rb_f_kill): remove rb_thread_polling() because this
-	  has no good effect and makes meaningless 100ms delay. 1)
-	  when sending signal to another process, waiting has just silly.
-	  2) when sending signal to current process, 100ms is often not
-	  enough time to wait. It depend on kernel behavior. And,
-	  rb_thread_polling() doesn't make sense anyway. When rb_thread_alone()
-	  is true, it doesn't wait at all and Process.kill() users don't
-	  expect threading changes Process.kill() behavior. [Bug #7560]
-
-Fri Dec 14 17:10:57 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parser_params): parser_tokline to track the line number at
-	  which token started.  [ruby-dev:46737] [Bug #7559]
-
-	* parse.y (fcall): operation with starting line number.
-
-	* parse.y (command, primary, method_call): point method name line.
-
-	* parse.y (gettable_gen): return token line for __LINE__.
-
-Fri Dec 14 16:56:59 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_insnhelper.c (vm_call_super_method): remove volatile introduced
-	  in r38365.
-
-	* vm_insnhelper.c (vm_call_method): use __forceinline to prevent
-	  VC++ to make vm_call_general and vm_call_super_method as the same
-	  method.  Thanks, Heesob Park.  [Bug #7556] [ruby-core:50867]
-
-Fri Dec 14 14:59:14 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/ruby/envutil.rb (Test::Unit::Assertions#assert_separately):
-	  take file and line by using caller_locations if not given.
-
-	* test/ruby/envutil.rb (Test::Unit::Assertions#assert_separately):
-	  count assertions in separated tests.
-
-Fri Dec 14 14:16:42 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/rubygems_hook.rb:  Fixed generation of documentation.
-	  Disabled rdoc generation by default to match RubyGems defaults.
-	  Reduced diff with RubyGems::RDoc.
-	* test/rdoc/test_rdoc_rubygems_hook.rb:  Tests for the above.
-	* test/rubygems/test_gem_rdoc.rb:  ditto.
-
-	* lib/rdoc/store.rb:  Removed useless variable assignment
-
-Fri Dec 14 13:58:40 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/commands/rdoc_command.rb:  When overwriting
-	  documentation, remove existing documentation first.
-
-	* lib/rubygems/server.rb:  Fixed documentation links.
-	* test/rubygems/test_gem_server.rb:  Test for the above.
-
-	* lib/rubygems/rdoc.rb:  Reduced diff with RDoc::RubyGemsHook
-	* test/rubygems/test_gem_rdoc.rb:  ditto
-
-Fri Dec 14 04:08:05 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* test/ruby/envutil.rb (Test::Unit::Assertions#assert_separately):
-	  added to execute given test source on separate process,
-	  catch its resulted exception and raise it on main process.
-
-Fri Dec 14 07:43:44 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/visitors/yaml_tree.rb: quote strings that begin
-	  with non-word characters.  Thanks Alex Tambellini!
-	* test/psych/test_yaml.rb: appropriate test case
-
-Thu Dec 13 23:14:17 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_insnhelper.c (vm_call_super_method): a workaround for the
-	  failure of TestRefinement#test_refine_recursion in Windows.
-	  See [ruby-core:50871] for details.
-
-Thu Dec 13 23:10:52  Charlie Somerville  <charlie@charliesomerville.com>
-
-	* object.c (Init_Object): use rb_mod_init_copy for Class#initialize_copy
-	* class.c (rb_class_init_copy): rename to class_init_copy_check, performs type
-	  checks on arguments to prevent reinitialization of initialized class
-	  [ruby-core:50869] [Bug #7557]
-	* class.c (rb_mod_init_copy): use class_init_copy_check if receiver is T_CLASS
-	* test/ruby/test_class.rb (class TestClass): related test
-
-Thu Dec 13 16:53:10 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/class_module.rb:  Fixed duplicate comments for classes and
-	  modules from C.
-	* test/rdoc/test_rdoc_class_module.rb:  Test for the above.
-
-	* lib/rdoc/parser/c.rb:  Reload C variable names to allow proper
-	  updates of an ri store for C files.
-	* lib/rdoc/rdoc.rb:  ditto.
-	* lib/rdoc/store.rb:  ditto.
-	* test/rdoc/test_rdoc_parser_c.rb:  Test for the above.
-	* test/rdoc/test_rdoc_store.rb:  ditto.
-
-Thu Dec 13 14:20:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/irb*: merge doc from doc/irb/ird.rd and improve overall
-	  documentation of IRB
-	* doc/irb/irb.rd: remove stale documentation
-
-Thu Dec 13 14:10:00 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* marshal.c (r_entry0): don't taint classes and modules because
-	  Marshal.load just returns the dumped classes and modules.
-	  [Bug #7325] [ruby-core:49198]
-
-	* test/ruby/test_marshal.rb: related test.
-
-Thu Dec 13 14:10:13 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/ruby/test_require.rb (TestRequire#test_loaded_features_encoding):
-	  need to check compatibility, not equality of encodings.
-
-Thu Dec 13 14:02:15 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* file.c (rb_file_join): check encoding compatibility before joining
-	  strings.
-
-Thu Dec 13 13:06:27 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* proc.c (umethod_bind): allow another form of method transplanting
-	  from a module via UnboundMethod.  [ruby-core:34267][Feature #4254]
-
-Thu Dec 13 12:07:25 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* include/ruby/ruby.h (RB_UNUSED_VAR): new macro to suppress
-	  warnings for unused variables.
-
-	* ext/bigdecimal/bigdecimal.c (ENTER): use RB_UNUSED_VAR() to
-	  suppress annoying warnings by -Wunused-but-set-variable in gcc 4.6.
-
-Thu Dec 13 11:22:33 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: remove "VM_METHOD_TYPE__MAX" from rb_method_type_t.
-	  rb_method_type_t is not a number and "_MAX" causes misunderstanding.
-
-	* proc.c (rb_method_entry_arity): ditto.
-
-	* vm_eval.c (vm_call0_body): ditto.
-
-	* vm_insnhelper.c (vm_call_method): ditto.
-
-Wed Dec 12 21:40:45 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/tmpdir.rb (Dir::Tmpname#create): deal with a prefix name which
-	  starts with tilde as a plain name, not expanding as home directory.
-	  [ruby-core:50793] [Bug #7547]
-
-Wed Dec 12 19:48:59 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/json: merge JSON 1.7.5.
-	  fix tests and other fixes.
-
-Wed Dec 12 18:30:29 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* class.c (rb_prepend_module): move refined methods from the origin
-	  of a class to the class, because refinements should have priority
-	  over prepended modules.
-
-	* test/ruby/test_refinement.rb: related test.
-
-Wed Dec 12 18:27:09 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* time.c (zone_str): lookup or insert by using st_update() at once.
-
-Wed Dec 12 15:30:11 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in: add -fno-omit-frame-pointer if libexecinfo is used.
-	  At least on FreeBSD ruby will crash on getting C backtrace
-	  when it is compiled with other than -O0.
-
-	* vm_dump.c: enable backtrace on FreeBSD even if with optimizations.
-
-Wed Dec 12 16:08:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/rdoc/test_rdoc_rdoc.rb (TestRDocRDoc#test_normalized_file_list_non_file_directory):
-	  use File::NULL for portability if possible.
-
-Wed Dec 12 16:07:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* method.h (rb_method_flag_t): name a magic number for NOEX_SAFE and
-	  NOEX_WITH as NOEX_SAFE_SHIFT_OFFSET.
-
-	* method.h (rb_method_type_t, method_optimized_type): C89 forbids a
-	  comma after the last element in enum.
-
-	* proc.c (rb_method_entry_arity), vm_eval.c (vm_call0_body),
-	  vm_insnhelper.c (vm_call_method): add VM_METHOD_TYPE__MAX case.
-
-Wed Dec 12 14:16:35 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/class_module.rb:  Added RDoc::ClassModule#documented? which
-	  checks comment_location.  Hide RDoc::ClassModule#comment=.
-	* test/rdoc/test_rdoc_class_module.rb:  Test for above.
-
-	* lib/rdoc/generator/template/darkfish/_sidebar_table_of_contents.rhtml:
-	  Fix display of the table of contents in the sidebar.
-
-	* lib/rdoc/generator/template/darkfish/table_of_contents.rhtml:
-	  Use #comment_location when displaying classes or modules.
-
-	* test/rdoc/test_rdoc_store.rb:  Use comment_location.
-
-Wed Dec 12 13:40:52 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_insnhelper.c (vm_getivar): no uninitialized instance variables
-	  warnings for non-object if attr method.
-
-Wed Dec 12 06:43:37 2012  Benoit Daloze  <eregontp@gmail.com>
-
-	* iseq.c (rb_iseq_parameters): fix limit for optional arguments.
-
-	* test/ruby/test_keyword.rb: tests for above.
-
-	* vm_core.h (struct rb_iseq_struct): update documentation
-	  with keyword arguments. [Bug #7540] [ruby-core:50735]
-
-Wed Dec 12 03:45:41 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm.c (vm_exec): pass exceptions while handling an exception.
-
-	* vm_trace.c (rb_threadptr_exec_event_hooks): propagate exceptions.
-	  revert r38293 partially.
-
-Wed Dec 12 03:09:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* sample/test.rb (Progress#initialize): add --verbose option and show
-	  messages in one line unless --verbose is given.
-
-Wed Dec 12 01:47:02 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (rb_using_refinement): make the method table of an iclass
-	  for a refinement that of the refinement, not that of the origin of
-	  the refinement, which is set by rb_include_class_new().  This
-	  change is needed to make module prepend into a refinement work
-	  properly.
-
-	* test/ruby/test_refinement.rb: related test.
-
-Wed Dec 12 01:05:04 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* tool/make-snapshot: add --disable-rubygem to both MINIRUBY and RUBY.
-	  On making miniprelude.c, it seems use MINIRUBY. this fixes #7541
-	  but rubygems also needs to be fixed for older rubies.
-
-Wed Dec 12 00:32:11 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* test/dl/test_func.rb (test_name_with_block, test_bind, test_qsort1):
-	  call unbind to release the callback closure because maximum number
-	  of callbacks is limited to DL::MAX_CALLBACK (== 5) with pure DL
-	  without Fiddle.
-
-Wed Dec 12 00:13:34 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* ext/dl/lib/dl/func.rb (DL::Function#unbind, #bound?): suppress
-	  NoMethodError when Fiddle is available. [ruby-core:50756] [Bug #7543]
-	* test/dl/test_func.rb (test_bound*, test_unbind*): tests for the above.
-
-Tue Dec 11 19:38:37 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* ext/fiddle/function.c (Fiddle::Function.new): new keyword argument
-	  :name to set the name attribute.
-	* ext/fiddle/lib/fiddle/import.rb (import_function, bind_function):
-	  set function name by using the :name keyword argument.
-	  Re-fixes r38243. [ruby-core:50566]
-	* test/fiddle/test_function.rb (test_name): test for the :name keyword
-	  argument and Fiddle::Function#name.
-
-Tue Dec 11 16:57:33 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* common.mk:  Added --pages-dir to rdoc creation.  Now doc/ items show
-	  up at top-level.
-	* .document:  Moved doc/* entries to doc/.document
-	* doc/.document:  ditto
-
-Tue Dec 11 16:44:37 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/options.rb:  Added --page-dir option for moving pages in
-	  doc/ to the top-level.
-	* lib/rdoc/rdoc.rb:  ditto.
-	* test/rdoc/test_rdoc_options.rb:  Test for the above.
-	* test/rdoc/test_rdoc_rdoc.rb:  ditto.
-
-Tue Dec 11 15:24:05 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* ext/pathname/lib/pathname.rb:  Hide private methods from RDoc.
-
-Tue Dec 11 15:11:29 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* tool/make-snapshot (BASERUBY): add --disable-gem to avoid load gems.
-	  [Bug #7541] [ruby-core:50736]
-
-Tue Dec 11 12:00:19 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/dl/win32/extconf.rb: Fix typo
-	  by Santiago Pastorino <santiago@wyeworks.com>
-	  https://github.com/ruby/ruby/pull/221 fix GH-221
-
-Tue Dec 11 01:53:37 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/matrix: alias {row|column}_size to {row|column}_count and use
-	  the latter.
-	  [Bug #7369] [ruby-core:49409]
-
-Tue Dec 11 00:26:58 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* fix the behavior when a module is included into a refinement.
-	  This change is a little tricky, so it might be better to prohibit
-	  module inclusion to refinements.
-
-	* include/ruby/ruby.h (RMODULE_INCLUDED_INTO_REFINEMENT): new flag
-	  to represent that a module (iclass) is included into a refinement.
-
-	* class.c (include_modules_at): set RMODULE_INCLUDED_INTO_REFINEMENT
-	  if klass is a refinement.
-
-	* eval.c (rb_mod_refine): set the superclass of a refinement to the
-	  refined class for super.
-
-	* eval.c (rb_using_refinement): skip the above superclass (the
-	  refined class) when creating iclasses for refinements.  Otherwise,
-	  `using Refinement1; using Refinement2' creates iclasses:
-	  <Refinement2> -> <RefinedClass> -> <Refinement1> -> RefinedClass,
-	  where <Module> is an iclass for Module, so RefinedClass is
-	  searched before Refinement1.  The correct iclasses should be
-	  <Refinement2> -> <Refinement1> -> RefinedClass.
-
-	* vm_insnhelper.c (vm_search_normal_superclass): if klass is an
-	  iclass for a refinement, use the refinement's superclass instead
-	  of the iclass's superclass.  Otherwise, multiple refinements are
-	  searched by super.  For example, if a refinement Refinement2
-	  includes a module M (i.e., Refinement2 -> <M> -> RefinedClass,
-	  and if refinements iclasses are <Refinement2> -> <M>' ->
-	  <Refinement1> -> RefinedClass, then super in <Refinement2> should
-	  use Refinement2's superclass <M> instead of <Refinement2>'s
-	  superclass <M>'.
-
-	* vm_insnhelper.c (vm_search_super_method): do not raise a
-	  NotImplementError if current_defined_class is a module included
-	  into a refinement.  Because of the change of
-	  vm_search_normal_superclass(), the receiver might not be an
-	  instance of the module('s iclass).
-
-	* test/ruby/test_refinement.rb: related test.
-
-Mon Dec 10 18:35:25 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_method.c (rb_method_entry_without_refinements): use
-	  rb_resolve_refined_method() to search superclasses if
-	  me->def->orig_me is 0.  This change fixes make test-all
-	  TESTS="json ruby/test_refinement.rb".
-
-	* test/ruby/test_refinement.rb: related test.
-
-Mon Dec 10 17:59:07 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/fiddle/win32/*: library ports from DL to Fiddle.
-
-	* ext/dl/win32/extconf.rb: check fiddle.  often case dl compiled prior
-	  to fiddle, so this change is no meaning.  in most cases, simply
-	  fiddle/win32 overwrite dl/win32.
-
-Mon Dec 10 15:23:35 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_trace.c (rb_threadptr_exec_event_hooks): exceptions in event
-	  hooks should not propagate outside.
-
-Mon Dec 10 15:11:06 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (iseq_compile_each): count flip-flop state in local iseq
-	  not in each iseqs, so that the keys can be other than hidden
-	  strings.  [ruby-core:47253] [Bug #6899]
-
-	* vm_insnhelper.c (lep_svar_get, lep_svar_set, vm_getspecial): store
-	  flip-flop states in an array instead of a hash.
-
-	* iseq.c (set_relation): main iseq also can has local scope.
-
-Mon Dec 10 10:36:12 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* lib/irb/magic-file.rb: set a encoding, which is detected from
-	  the file to read, to the internal encoding.
-	  [Bug #4281][ruby-dev:43036]
-
-Mon Dec 10 09:40:19 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/ext/cmake_builder.rb:  Added a builder for cmake.
-	* lib/rubygems/ext.rb:  ditto.
-	* lib/rubygems/installer.rb:  ditto.
-	* test/rubygems/test_gem_ext_cmake_builder.rb:  Test for above.
-
-Mon Dec 10 09:13:08 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/package.rb:  Omit directories when packaging gems like
-	  RubyGems 1.8.x
-	* test/rubygems/test_gem_package.rb:  Test for above.
-
-Sun Dec  9 17:36:59 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_insnhelper.c (vm_call_opt_send): Kernel#send should not use
-	  refinements.
-
-	* proc.c (mnew): Kernel#method, Kernel#public_method,
-	  Module#instance_method, and Module#public_instance_method should
-	  not use refinements.
-
-	* vm_method.c (rb_method_boundp): Kernel#respond_to? should not use
-	  refinements.
-
-	* test/ruby/test_refinement.rb: related test.
-
-Sun Dec  9 06:19:04 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/markdown/entities.rb:  Added documentation.
-
-	* lib/rdoc/parser/ruby.rb:  Updated style
-
-	* lib/rdoc/ruby_lex.rb:  Parse characters up to \u{FFFFF}
-	* test/rdoc/test_rdoc_ruby_lex.rb:  Test for above.
-
-Sat Dec  8 22:38:35 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (rb_mod_refine): don't override Module#include.  It's
-	  unnecessary now because refinements are activated only in refine
-	  blocks.
-
-Sat Dec  8 22:33:26 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c: remove Module#refinements.
-
-	* test/ruby/test_refinement.rb: remove tests for Module#refinements.
-
-Sat Dec  8 13:17:55 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (top_using): raise a RuntimeError if using is called in a
-	  module definition or a method definition.
-
-	* test/ruby/test_refinement.rb: related test.
-
-Sat Dec  8 15:01:35 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/commands/cleanup_command.rb:  Skip default gems when
-	  cleaning up.
-	* test/rubygems/test_gem_commands_cleanup_command.rb:  Test for above.
-
-	* lib/rubygems/commands/query_command.rb:  Fixed listing remote gems.
-
-	* lib/rubygems/dependency_installer.rb:  Ignore non-files when looking
-	  for local gems.
-	* test/rubygems/test_gem_dependency_installer.rb:  Test for above.
-
-	* lib/rubygems/uninstaller.rb:  The user must confirm uninstalling gems
-	  that have dependencies.
-	* test/rubygems/test_gem_uninstaller.rb:  Test for above.
-
-	* lib/rubygems.rb (module Gem):  Updated version.
-
-	* test/rubygems/*.pem:  Updated to run in FIPS mode.
-	* test/rubygems/test_gem_security.rb:  ditto.
-	* test/rubygems/test_gem_security_signer.rb:  ditto.
-
-Sat Dec  8 12:34:01 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_insnhelper.c (vm_search_normal_superclass): super in a
-	  refinement always uses the refined class as its superclass.
-
-	* test/ruby/test_refinement.rb: related test.
-
-Sat Dec  8 11:59:59 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (rb_mod_refine): raise an ArgumentError if a given
-	  block is of a Proc object.
-
-	* vm_insnhelper.c (vm_call_method): store refined methods in inline
-	  cache to improve performance.  It's safe now because blocks cannot
-	  be yielded with different refinements in the new specification.
-
-	* test/ruby/test_refinement.rb: related test.
-
-Sat Dec  8 11:17:53 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (rb_mod_refine), vm_eval.c (rb_yield_refine_block):
-	  Module#refine activates all refinements defined in that module
-	  only in a given block.
-
-	* string.c (sym_to_proc, sym_call): don't use refinements.
-
-	* test/ruby/test_refinement.rb: related test.
-
-Sat Dec  8 09:24:42 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* ext/openssl/ossl_x509name.c:  Completed documentation for
-	  OpenSSL::X509::Name.
-
-Sat Dec  8 07:57:12 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* ext/objspace/objspace.c (iow_size): return size of internal object
-	  for ObjectSpace.memsize_of().
-
-	* test/objspace/test_objspace.rb: add a test.
+	* variable.c (struct ivar_update): rename "extended" to "iv_extended"
+	  to avoid name conflict with /usr/include/floatingpoint.h on
+	  Solaris. [Bug #11853] [ruby-dev:49448]
 
-Tue Dec 08 02:39:23 2012  James Edward Gray II  <james@graysoftinc.com>
+Mon Dec 21 12:15:32 2015  Kimura Wataru  <kimuraw@i.nifty.jp>
 
-	* lib/csv.rb: A fix for row comparison by Stephen Wattam.  [Bug #7528]
+	* test/ruby/test_io.rb: handled rlimit value same as r52277
+	  [Bug #11852][ruby-dev:49446]
 
-Sat Dec  8 01:27:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Dec 21 10:21:22 2015  Ilya Vassilevsky <vassilevsky@gmail.com>
 
-	* lib/test/unit.rb (Test::Unit::Runner#_run_parallel): no need to
-	  check all reports.
+	* lib/net/http.rb (open_timeout): update default value in RDoc
+	  [ruby-core:72413]
 
-Sat Dec  8 00:10:34 2012  Shugo Maeda  <shugo@ruby-lang.org>
+Mon Dec 21 10:18:46 2015  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* vm_eval.c (yield_under, eval_under): do not activate refinements
-	  of the receiver in module_eval and instance_eval.
+	* vm_backtrace.c (rb_profile_frames): ignore ifunc frames as it
+	  did before.  [ruby-core:72409] [Bug #11851]
 
-	* eval.c (ruby_Init_refinement): undef Class#refine.
+Mon Dec 21 09:33:17 2015  Karol Bucek  <kares@users.noreply.github.com>
 
-	* eval.c (ruby_Init_refinement): remove Module#using.
+	* ext/openssl/lib/openssl/ssl.rb (OpenSSL::SSL::SSLSocket): fix
+	  NotImplementedError typo.  [Fix GH-1165]
 
-	* eval.c (ruby_Init_refinement): main.using should be private.
+Sun Dec 20 20:54:51 2015  Takashi Kokubun  <takashikkbn@gmail.com>
 
-	* eval.c (rb_mod_refine): the argument of Module#refine should not
-	  be a module.
+	* cgi/escape/escape.c: Optimize CGI.escapeHTML for
+	  ASCII-compatible encodings.  [Fix GH-1164]
 
-	* insns.def (defineclass): do not activate refinements in a class or
-	  module.
+Sun Dec 20 15:36:46 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Fri Dec  7 23:42:11 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* lib/erb.rb: revert r53123. It breaks compatibility like thor and
+	  rspec-rails.
+	  We should try with Ruby 2.4 or 3.0.
+	  [Bug #11842][ruby-core:72374]
+	* lib/rdoc/erb_partial.rb: ditto.
+	* template/verconf.h.tmpl: ditto.
 
-	* ext/refinement/refinement.c: include ruby/ruby.h instead of the
-	  declaration of rb_warn().
+Sun Dec 20 11:43:31 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Dec  7 16:07:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+	* parse.y (parser_yylex): allow here documents in labeled
+	  argument.  [ruby-core:72396] [Bug #11849]
 
-	* doc/etc.rd: Removed stale documentation file
-	* ext/etc/etc.c:  Merged documentation from doc/etc.rd and updated
-	  rdoc, added documentation for Etc::Passwd and Etc::Group
+Sun Dec 20 11:14:11 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Dec  7 16:00:57 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* proc.c (rb_mod_define_method): should check Symbol or not.
+	  [Bug #11850]
 
-	* lib/test/unit.rb (Test::Unit::Runner#_run_parallel): no need to
-	  retry skipped test.  this fix makes 40% faster the whole test-all
-	  with -j5 on Windows.
-
-Fri Dec  7 14:22:29 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/markup/to_joined_paragraph.rb:  Completed documentation
-	* lib/rdoc/parser/c.rb:  ditto
-	* lib/rdoc/parser/changelog.rb:  ditto
-	* lib/rdoc/servlet.rb:  ditto
-	* lib/rdoc/store.rb:  ditto
-
-	* lib/rdoc/store.rb:  Improved HTML error page.  Completed
-	  documentation
-
-	* lib/rdoc/parser/ruby.rb:  Fixed bug attaching a comment to A::B = 42
-	* test/rdoc/test_rdoc_parser_ruby.rb:  Test for above
-
-	* test/rdoc/test_rdoc_comment.rb:  Removed garbage
-
-Fri Dec  7 14:03:59 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/timeout.rb (Timeout#timeout): since async_interrupt_timing
-	  re-raises a deferred exception, replace the timeout exception with
-	  Timeout::Error after it.  [Bug #7503]
-
-Fri Dec  7 13:07:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* doc/forwardable.rd: Remove stale documentation file
-	* lib/forwardable.rb: Merge documentation from doc/forwardable.rd
-
-Fri Dec  7 09:47:35 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* time.c (time_mdump): dump timezone string to private instance variable
-	  on marshaling.
-
-	* time.c (time_mload): load timezone string from private instance
-	  variable named 'zone'.
-
-Fri Dec  7 01:15:07 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* ext/fiddle/lib/fiddle/function.rb (Fiddle::Function#name): new
-	  attribute needed to switch Win32::Registry from DL to Fiddle.
-
-	* ext/fiddle/lib/fiddle/import.rb (import_function, bind_function):
-	  set function name to the returned Fiddle::Function object.
-
-Fri Dec  7 00:11:44 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* test/ruby/test_refinement.rb: fix some tests to use neither
-	  Module#using nor Module#module_eval.
-
-Thu Dec  6 23:27:50 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (ruby_Init_refinement): a new function to enable
-	  Refinements with a warning "Refinements are experimental...".
-
-	* ext/refinement/refinement.c, ext/refinement/extconf.rb: a new
-	  extension library to enable Refinements.
-
-Thu Dec  6 18:23:05 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* revised r37993 to avoid SEGV/ILL in tests.  In r37993, a method
-	  entry with VM_METHOD_TYPE_REFINED holds only the original method
-	  definition, so ci->me is set to a method entry allocated in the
-	  stack, and it causes SEGV/ILL.  In this commit, a method entry
-	  with VM_METHOD_TYPE_REFINED holds the whole original method entry.
-	  Furthermore, rb_thread_mark() is changed to mark cfp->klass to
-	  avoid GC for iclasses created by copy_refinement_iclass().
-
-	* vm_method.c (rb_method_entry_make): add a method entry with
-	  VM_METHOD_TYPE_REFINED to the class refined by the refinement if
-	  the target module is a refinement.  When a method entry with
-	  VM_METHOD_TYPE_UNDEF is invoked by vm_call_method(), a method with
-	  the same name is searched in refinements.  If such a method is
-	  found, the method is invoked.  Otherwise, the original method in
-	  the refined class (rb_method_definition_t::body.orig_me) is
-	  invoked.  This change is made to simplify the normal method lookup
-	  and to improve the performance of normal method calls.
-
-	* vm_method.c (EXPR1, search_method, rb_method_entry),
-	  vm_eval.c (rb_call0, rb_search_method_entry): do not use
-	  refinements for method lookup.
-
-	* vm_insnhelper.c (vm_call_method): search methods in refinements if
-	  ci->me is VM_METHOD_TYPE_REFINED.  If the method is called by
-	  super (i.e., ci->call == vm_call_super_method), skip the same
-	  method entry as the current method to avoid infinite call of the
-	  same method.
-
-	* class.c (include_modules_at): add a refined method entry for each
-	  method defined in a module included in a refinement.
-
-	* class.c (rb_prepend_module): set an empty table to
-	  RCLASS_M_TBL(klass) to add refined method entries, because
-	  refinements should have priority over prepended modules.
-
-	* proc.c (mnew): use rb_method_entry_with_refinements() to get
-	  a refined method.
-
-	* vm.c (rb_thread_mark): mark cfp->klass for iclasses created by
-	  copy_refinement_iclass().
-
-	* vm.c (Init_VM), cont.c (fiber_init): initialize th->cfp->klass.
-
-	* test/ruby/test_refinement.rb (test_inline_method_cache): do not skip
-	  the test because it should pass successfully.
-
-	* test/ruby/test_refinement.rb (test_redefine_refined_method): new
-	  test for the case a refined method is redefined.
-
-Thu Dec  6 17:29:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parser_here_document): flush string content between new
-	  line and :string_embexpr.  [ruby-core:48703] [Bug #7255]
-
-Thu Dec  6 16:35:21 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* test/rake/helper.rb:  Load envutil correctly.  Removed useless rescue
-	  for signal propagation tests
-	* lib/rake/file_utils.rb:  Prefer the built ruby.
-	* test/rake/test_rake_functional.rb:  ditto
-
-Thu Dec  6 15:20:34 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/context.rb:  Don't warn for duplicate methods while loading.
-	* test/rdoc/test_rdoc_context.rb:  Test for above.
-
-Thu Dec  6 14:26:22 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/command_manager.rb:  Removed string concatenation
-	  syntax.  [Bug #6265]
-	* lib/rubygems/commands/install_command.rb:  ditto
-	* lib/rubygems/commands/uninstall_command.rb:  ditto
-	* lib/rubygems/indexer.rb:  ditto
-	* lib/rubygems/security/policy.rb:  ditto
-	* lib/rubygems/security.rb:  ditto
-	* lib/rubygems/uninstaller.rb:  ditto
-	* test/rubygems/test_gem_commands_cert_command.rb:  ditto
-	* test/rubygems/test_gem_package.rb:  ditto
-	* test/rubygems/test_gem_security.rb:  ditto
-	* test/rubygems/test_gem_security_policy.rb:  ditto
-
-Thu Dec  6 14:10:08 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/package.rb:  Set rubygems_version before validation.
-	  Fixes issue with bundler.
-	* test/rubygems/test_gem_package.rb:  Test for above.
-
-	* lib/rubygems/remote_fetcher.rb:  Only update the cache when we have
-	  permission.  [ruby-trunk - Bug #7509]
-	* lib/rubygems/source.rb (class Gem):  ditto
-	* test/rubygems/test_gem_remote_fetcher.rb:  Test for above.
-	* lib/rubygems/test_utilities.rb:  ditto
-
-	* lib/rubygems/specification.rb:  Derive base_dir properly for default
-	  gems.  [ruby-trunk - Bug #7496]
-	* test/rubygems/test_gem_specification.rb:  Test for above.
-
-	* lib/rubygems.rb:  Untaint Dir.pwd when searching for gemdeps files
-	  for operation under $SAFE=1
-
-Thu Dec 06 12:07:11 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_trace.c: TracePoint#enable should not cause an error
-	  when it is already enabled. TracePoint#disable is too.
-	  [ruby-core:50561] [ruby-trunk - Bug #7513]
-
-	* test/ruby/test_settracefunc.rb: add tests.
-
-Thu Dec  6 07:19:58 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc*:  Improved display of ChangeLog files as HTML.
-	* test/rdoc*:  Test for above.
-
-Thu Dec  6 04:34:19 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (rb_uninterruptible): helper function for providing
-	  temporary async_interrupt_timing(Object => :defer)
-
-	* io.c (rb_f_p): use rb_uninterruptible.
-	* io.c (rb_f_p_internal): helper function for rb_f_p().
-	* io.c (struct rb_f_p_arg): new struct for rb_f_p_internal.
-
-	* test/ruby/test_thread.rb (test_async_interrupt_and_p): test for
-	  the above.
-
-Thu Dec  6 04:27:10 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* io.c (io_binwrite): check interrupt before io issue.
-	* test/ruby/test_thread.rb (test_async_interrupt_and_io):
-	  test for the above.
-
-Thu Dec  6 01:10:36 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_eval.c (rb_method_call_status): use Qundef as no self instead of
-	  the current self.
-
-	* vm_eval.c (send_internal): public_send does not consider how it is
-	  called, as mentioned in r14173.  patched by charliesome (Charlie
-	  Somerville).  [ruby-core:50489] [Bug #7499]
-
-Wed Dec  5 23:50:23 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* gc.c (getrusage_time): uses clock_gettime() with
-	  CLOCK_PROCESS_CPUTIME_ID when available, which provides a 1ns
-	  precision on linux. [ruby-core:50495] [Bug #7500]
-	  patched by Aman Gupta.
-
-Wed Dec  5 22:46:02 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm.c (rb_vm_make_proc): save the proc made from the given block so
-	  that it will not get collected.  [ruby-core:50545] [Bug #7507]
-
-Wed Dec  5 22:13:57 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* ext/dl/lib/dl/func.rb (DL::Function#bind): When Fiddle is used,
-	  @ptr should be updated. This fixes SEGV raised in DL::Function#call
-	  after calling DL::Function#bind. [Bug #7516] [ruby-dev:46708]
-
-	* test/dl/test_func.rb (test_bind): test for the above
-
-Wed Dec  5 18:53:00 2012  Masaya Tarui  <tarui@ruby-lang.org>
-
-	* thread.c (rb_thread_s_async_interrupt_timing): have to check ints
-	  before jumping out.
-	* test/ruby/test_thread.rb (test_async_interrupt_with_return): add test
-	  rescue has to catch a queued async exception at the time of return.
-	* test/ruby/test_thread.rb (test_async_interrupt_with_break): add test
-	  rescue has to catch a queued async exception at the time of break.
-
-Wed Dec  5 16:54:28 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* test/ruby/memory_status.rb: suppress warning.
-	  A patch from NAKAMURA Usaku.
-
-Wed Dec  5 16:06:54 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/parser/changelog.rb:  Parse more ChangeLog file variations.
-	* test/rdoc/test_rdoc_parser_changelog.rb:  Test for above.
-
-Wed Dec  5 12:17:11 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* ext/dl/lib/dl/func.rb (DL::Function#initialize, DL::Function#bind):
-	  ABI should be set by using CFunc#calltype even when Fiddle is used.
-	  When Fiddle is used and a block is given, name should not be ignored.
-	  [ruby-core:50562] [Bug #7514]
-
-	* ext/dl/lib/dl/import.rb (DL::Importer#bind_function): should respect
-	  abi and name when Fiddle is used.
-
-	* test/dl/test_func.rb (test_name_with_block): test for "name" method
-	  with giving a block.
-
-Wed Dec  5 11:55:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* doc/shell.rd, doc/shell.rd.ja: Removed stale doc files
-	* lib/shell.rb, lib/shell/*: Merge and updates docs from doc/shell.rd*
-
-Wed Dec  5 11:42:38 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* test/ruby/test_settracefunc.rb: disable trace.
-
-Wed Dec  5 11:37:37 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (MakeMakefile#macro_defined?): use clearly different
-	  strings from conflict markers.
-
-Wed Dec  5 04:25:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/README: Add rdoc modeline directive and formatting libs
-
-Wed Dec  5 04:04:02 2012  Masaya Tarui  <tarui@ruby-lang.org>
-
-	* test/ruby/test_thread.rb (test_async_interrupt_blocking): bugfix
-	  about deferred check
-
-Wed Dec  5 03:35:37 2012  Masaya Tarui  <tarui@ruby-lang.org>
-
-	* vm_core.h (RUBY_VM_CHECK_INTS_BLOCKING): check async queue everytime.
-	* thread.c (sleep_forever): check RUBY_VM_CHECK_INTS_BLOCKING first.
-	* thread.c (sleep_timeval): ditto.
-	* test/ruby/test_thread.rb (test_async_interrupt_blocking): add a test
-	  exceptions are correctly deferred and raised on :on_blocking context.
-
-Wed Dec  5 02:36:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk, defs/id.def, template/id.c.tmpl: generate id.c as well as id.h.
-
-Wed Dec  5 00:56:21 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (rb_mutex_owned_p): new method that return current
-	  thread have the target mutex or not. [Feature #7505] [ruby-dev:46697]
-	* test/ruby/test_thread.rb (test_mutex_owned, test_mutex_owned2):
-	  test for the above.
-	* NEWS: new for the above.
-
-Wed Dec  5 00:05:47 2012  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/erb.rb (make_compiler, add_put_cmd, add_insert_cmd): extract
-	  methods.
-
-Tue Dec  4 18:21:04 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* test/ruby/memory_status.rb (Memory): use fiddle/types if available.
-
-	* test/ruby/memory_status.rb (Memory::Win32): :stdcall is needed on
-	  x86 WIN32. This commit partly reverts r38054.
-
-Tue Dec  4 18:05:58 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* ext/fiddle/lib/fiddle/types.rb: copied from ext/dl/lib/dl/types.rb
-	  and modified for Fiddle, needed for migration from DL to Fiddle.
-
-Tue Dec  4 17:57:09 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* ext/fiddle/lib/fiddle/import.rb (import_function, bind_function):
-	  should respect call_type for migration from DL to Fiddle.
-	  [Bug #7484] [ruby-core:50405]
-
-Tue Dec  4 16:54:00 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* .document:  Added ChangeLog and doc/ChangeLog-* as documentation
-
-Tue Dec  4 16:47:46 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/parser/changelog.rb:  Added a ChangeLog parser to RDoc.
-	* lib/rdoc/parser.rb:  ditto
-	* test/rdoc/test_rdoc_parser_changelog.rb:  Test for above.
-
-Tue Dec  4 16:23:32 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* marshal.c (path2class, path2module): use PRIsVALUE.
-
-	* marshal.c (w_object, marshal_dump, marshal_load): use
-	  rb_check_funcall if possible.
-
-	* marshal.c (w_object, marshal_dump, r_object0, marshal_load): use
-	  RB_GC_GUARD() (directly or indirectly) instead of volatile.
-
-	* variable.c (rb_path_to_class): prevent the argument from GC.
-
-Tue Dec 04 13:55:07 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_opts.h: enable optimization - operand unification.
-	  Operand unification technique enable to combine
-	  an instruction and specific operands and make new
-	  instruction.
-
-	* defs/opt_operand.def: add several configuration
-	  of operand unification.
-
-	* insns.def: use `int' instead to suppress warning.
-
-Mon Dec  3 17:58:53 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* parse.y: replace parser->enc with current_enc.
-
-Tue Dec  4 08:33:46 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* README.EXT:  Converted to RDoc format
-	* README.EXT.ja:  ditto
-
-Tue Dec  4 08:32:10 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/ri/driver.rb:  Fixed ri page display for files with
-	  extensions.
-	* test/rdoc/test_rdoc_ri_driver.rb:  Test for above
-
-Tue Dec  4 04:11:50 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* .document:  Add NEWS for `ri ruby:NEWS`
-	* NEWS:  Set format as rdoc
-	* doc/NEWS-1.8.7:  ditto
-	* doc/NEWS-1.9.1:  ditto
-	* doc/NEWS-1.9.2:  ditto
-	* doc/NEWS-1.9.3:  ditto
-
-Mon Dec  3 20:37:22 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_exec.c: check VM_COLLECT_USAGE_DETAILS.
-
-Mon Dec  3 20:28:02 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (iseq_specialized_instruction):
-	  change condition of using `opt_send_simple'.
-	  More method invocations can be simple.
-
-Mon Dec  3 20:03:38 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* test/ruby/test_objectspace.rb: skip RuntimeError
-	  which says a message "can't modify frozen File".
-	  Is that correct behavior?
-
-Mon Dec 03 20:00:19 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_exec.c: vm_analysis_insn should be static.
-
-Mon Dec  3 19:10:12 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* random.c (Init_Random), rational.c (Init_Rational): make marshal
-	  methods private.  [Feature #6539]
-
-Mon Dec  3 18:29:27 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.h: iseq_catch_table_entry::catch_type should be
-	  Fixnum because they are pushed into Array in a compiler.
-	  [Bug #7502]
-
-	* test/ruby/test_objectspace.rb: add a test of this issue.
-
-Mon Dec  3 18:25:16 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* template/id.h.tmpl (preserved_ids): "empty?" is not an attribute name.
-
-Mon Dec  3 16:23:09 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_backtrace.c (vm_backtrace_to_ary): check negative size (2nd arg).
-
-Mon Dec  3 15:50:33 2012  Akinori MUSHA  <knu@iDaemons.org>
-
-	* misc/ruby-additional.el (ruby-mode-set-encoding): Unbreak by
-	  fixing a typo, s/set/setq/.
-
-Mon Dec  3 14:14:19 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (iseq_compile_each): joke shouldn't use id.h defined ids.
-
-	* id.c (Init_id): ditto.
-
-	* common.mk: fix dependency.
-
-Mon Dec  3 12:43:35 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* misc/ruby-mode.el (ruby-block-end-re, ruby-delimiter)
-	  (ruby-mode-syntax-table, ruby-parse-partial, ruby-beginning-of-indent):
-	  merge from Emacs.
-
-	* misc/ruby-mode.el (ruby-calculate-indent): fix indentation of
-	  argument lines in parentheses.  [Bug #5140]
-
-Mon Dec  3 07:52:41 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/parser.rb:  Improved modeline support.  Patch by nobu.
-	* test/rdoc/test_rdoc_parser.rb:  Test for above.
-
-Sun Dec  3 00:06:00 2012  Kenta Murata  <mrkn@mrkn.jp>
-
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_new): stop checking string
-	  taintness.  [Bug #5508] [ruby-core:40510]
-
-Sun Dec  2 19:26:47 2012  Masaya Tarui  <tarui@ruby-lang.org>
-
-	* thread.c (RB_GC_SAVE_MACHINE_CONTEXT, rb_gc_save_machine_context):
-	  extract rb_gc_save_machine_context to RB_GC_SAVE_MACHINE_CONTEXT.
-	  NOTE: machine_regs and machine_stack_end must be set in current scope.
-
-Sun Dec  2 18:46:24 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* array.c, enum.c, insns.def, io.c, numeric.c, parse.y, process.c,
-	  range.c: use prepared IDs.
-	  A patch from charliesome (Charlie Somerville).
-	  [Bug #7495]
-
-	* common.mk: add dependency to id.h.
-
-	* common.mk: replace ID_H_INCLUDES with id.h.
-
-Sun Dec  2 16:48:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/weakref.rb (rdoc): Clean up usage, add example,
-	  note ArgumentError on WeakRef.new
-
-Sun Dec  2 16:45:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* gc.c (WeakMap): Add doc for internal reference, use lib/weakref.rb
-
-Sun Dec  2 07:24:23 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/parser.rb:  Parse files with a -*- rdoc -*- modeline
-	* test/rdoc/test_rdoc_parser.rb:  Test for above
-
-Sun Dec  2 06:02:00 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* gc.h (SET_MACHINE_STACK_END): add volatile for preventing
-	  harmful optimization.  [ruby-dev:46665] [Bug #7468]
-
-Sun Dec  2 05:01:58 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.c (rb_iseq_line_trace_each): iterate `line' event only.
-
-	* test/ruby/test_iseq.rb: add a test for this change.
-
-Sun Dec  2 02:46:04 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_trace.c: add TracePoint#inspect.
-
-	* test/ruby/test_settracefunc.rb: add a test for this change.
-
-Sat Dec  1 21:18:19 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* test/ruby/test_backtrace.rb: add a test for
-	  Thread::Backtrace::Location#inspect.
-	  BTW, tests for `caller_locations' are not enough.
-	  Any volunteers are welcome.
-
-Sat Dec  1 21:06:58 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_backtrace.c (location_inspect_m): add
-	  Thread::Backtrace::Location#inspect.
-	  It same as loc_obj.to_s.inspect.
-
-Sat Dec  1 19:24:09 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (rb_io_puts): recurse for the argument itself, not converted
-	  array elements.  [ruby-core:42444] [Bug #5986]
-
-Sat Dec  1 19:01:36 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* marshal.c (w_object, r_object0): call private marshal methods.
-	  [Feature #6539]
-
-Sat Dec  1 18:52:22 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/commands/cleanup_command.rb:  Fix cleanup command for
-	  multiple gems.  [ruby-trunk - #7481] by Kouhei Sutou
-	* test/rubygems/test_gem_commands_cleanup_command.rb:  Test for above.
-	* lib/rubygems.rb:  Autoload Gem::Source to prevent test failures
-
-Sat Dec  1 18:17:00 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* complex.c (Init_Complex), time.c (Init_Time): make marshal methods
-	  private.  [Feature #6539]
-
-	* object.c (Init_Object): make remove_instance_variable public.
-	  [Feature #6539]
-
-	* id.c (Init_id), template/id.h.tmpl: add initialize_{copy,clone,dup}
-	  and respond_to_missing?.
-
-	* vm_method.c (rb_method_entry_make): make above methods private.
-	  [Feature #6539]
-
-Sat Dec  1 16:40:22 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* test/ruby/test_thread.rb: move ConditionVariable related test
-	  into test/thread/test_cv.rb.
-	* test/thread/test_cv.rb: new file.
-	* test/thread/test_cv.rb (test_condvar_empty_signal): new tests.
-	* test/thread/test_cv.rb (test_condvar_empty_broadcast): ditto.
-
-Sat Dec  1 15:14:25 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* test/ruby/test_thread.rb (test_cv_wait_deadlock): enable
-	  cv deadlock test.
-
-Sat Dec  1 14:23:33 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* lib/thread.rb (ConditionVariable): use hash instead of array for
-	  @waiters.
-	* test/thread/test_queue.rb (test_sized_queue_and_wakeup): remove
-	  a test because @waiters no longer have a chance to duplicated. Now it's
-	  a hash.
-
-Sat Dec  1 17:16:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* misc/ruby-electric.el (ruby-electric-curlies): use kill-region
-	  instead of interactive command delete-backward-char.
-
-Sat Dec  1 17:12:55 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* misc/inf-ruby.el (inferior-ruby-mode): fix the
-	  compilation-shell-minor-mode configuration.  a patch by
-	  j2petkov (Jean-Christophe Petkovich) in [ruby-core:46518].
-	  [Bug #6742]
-
-Sat Dec  1 15:05:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (glob_helper): use NAMLEN() to tell the length of d_name
-	  instead of strlen(), which can access beyond the boundary.
-
-Sat Dec  1 13:48:13 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/specification.rb:  Don't add default gems to $LOAD_PATH
-	  as they are already there.
-
-Sat Dec  1 12:22:17 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* re-added r38053 that is reverted by r38061. Problems by r38053
-	  are resolved by r38096. r38096 removed GEM_SKIP configuration.
-
-	  The below is ChangeLog of r38053:
-
-	* defs/default_gems: Add base directory column.
-
-	* tool/rbinstall.rb:
-	  - Install .gemspecs of default gem to
-	    #{GEM_HOME}/specifications/default/.
-	  - Update files parameter of .gemspecs by relative path from
-	    library directory.
-
-Sat Dec  1 11:09:12 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* variable.c (rb_class_path_no_cache): add a function to get the class
-	  path without caching the computed path. Some classes are frozen, and
-	  will raise an exception without this.
-
-	* probes.d (cmethod-entry, cmethod-return): separate cmethods from
-	  regular methods to match set trace func.
-
-	* probes_helper.h: refactor macros.  Fix probes to avoid calling
-	  #inspect when profiling.
-
-	* insns.def: update for use with new macros.
-
-	* vm_eval.c: ditto
-
-	* vm_insnhelper.c: ditto
-
-	* test/dtrace/test_singleton_function.rb: fix test for new output.
-
-	* test/dtrace/test_cmethod.rb: test the cmethod probes.
-
-Sat Dec  1 09:44:16 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* test/rdoc/test_rdoc_options.rb:  Windows drive letters are
-	  case-insensitive.
-
-Sat Dec  1 09:42:13 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems.rb:  Search for gem deps file up the directory tree.
-	* test/rubygems/test_gem.rb:  Test for above.
-
-Sat Dec  1 09:33:32 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* test/runner.rb:  Set GEM_HOME, GEM_PATH and GEM_SKIP to empty set.
-	  With default_gem support in RubyGems GEM_SKIP prevents loading of
-	  built-in gems.
-
-Sat Dec  1 07:16:17 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* compile.c (ADD_CATCH_ENTRY): add a cast to fix SEGV with x64 mingw
-	  on Windows 8. Without cast, 0 might be non zero value at higher bits
-	  in rb_ary_new3().
-	  [ruby-core:50258] [Bug #7456]
-
-Sat Dec  1 04:07:57 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* parse.y (parser.utf8): remove unused property.
-
-	* parse.y (UTF8_ENC): remove unused macro.
-
-	* parse.y (parser_tokadd_utf8): use rb_utf8_encoding() directly.
-
-Sat Dec  1 03:49:45 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* lib/sync.rb (Sync_m#sync_synchronize): add Thread.async_interrupt_timing
-	  for protecting from async interrupt.
-	* lib/sync.rb (Sync_m#sync_lock): ditto.
-
-Sat Dec  1 03:38:04 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* lib/thread.rb (ConditionVariable#broadcast): s/RuntimeError/StandardError/
-	* lib/thread.rb (ConditionVariable#signal): ditto.
-
-Sat Dec  1 03:29:52 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* lib/thread.rb (SizedQueue#pop): rewrite by using ConditionVariable.
-	* lib/thread.rb (SizedQueue#push): ditto.
-	* lib/thread.rb (SizedQueue#max): ditto.
-	* lib/thread.rb (Queue#pop): ditto.
-	* lib/thread.rb (Queue#push): ditto.
-
-	* lib/thread.rb (SizedQueue#num_waiting): adopt the above changes.
-	* lib/thread.rb (SizedQueue#initialize): ditto.
-	* lib/thread.rb (Queue#num_waiting): ditto.
-	* lib/thread.rb (Queue#initialize): ditto.
-	* test/thread/test_queue.rb (test_sized_queue_and_wakeup): ditto.
-
-Sat Dec  1 03:45:47 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* thread.c (Thread.async_interrupt_timing): fix RDoc.
-	  :never is not used any more.
-
-Sat Dec  1 02:56:19 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.c: add RubyVM::InstructionSequence (ISeq) inspection methods.
-	  * ISeq#path returns path of this ISeq written.
-	  * ISeq#absolute_path returns absolute path.
-	  * ISeq#label returns label (method name and so on).
-	  * ISeq#base_label returns base label (see Thread::Backtrace::Location).
-	  * ISeq#first_lineno returns first line number of this ISeq.
-	  * ISeq.of(obj) returns ISeq object which obj (Proc or Method)
-	    is contains.
-
-	* test/ruby/test_iseq.rb: add tests.
-
-Sat Dec  1 02:58:51 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* include/ruby/ruby.h (rb_event_flag_t):  Maintain integer precision
-	  for clang error (VALUE aka unsigned long vs unsigned int)
-
-Sat Dec  1 02:53:18 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* test/rubygems/test_gem_dependency_installer.rb:  Use Gem.read_binary
-	  instead of File.binread for ruby 1.8 compatibility in the rubygems
-	  source repository.  Updates r38075
-
-Sat Dec  1 02:33:20 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (rb_threadptr_interrupt_mask, async_interrupt_timing_func):
-	  merge into them into rb_thread_s_async_interrupt_timing.
-	* thread.c (rb_thread_s_async_interrupt_timing): ditto.
-
-Sat Dec  1 02:11:47 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (rb_threadptr_interrupt_mask): add argument check.
-	* thread.c (async_interrupt_timing_arg_check_i): helper function
-	  for the above.
-	* test/ruby/test_thread.rb (test_async_interrupt_timing_invalid_argument):
-	  test for the above.
-
-Sat Dec  1 01:19:34 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* lib/thread.rb (ConditionVariable#broadcast): protect from
-	  async interrupt by using Thread.async_interrupt_timing.
-	* lib/thread.rb (ConditionVariable#signal): ditto.
-	* lib/thread.rb (ConditionVariable#wait): ditto.
-
-Sat Dec  1 02:04:23 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* test/ruby/envutil.rb (Test::Unit::Assertions#assert_in_out_err):
-	  raise if assert_in_out_err misused.
-
-Sat Dec  1 02:08:16 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/rdoc/test_rdoc_rubygems_hook.rb
-	  (TestRDocRubygemsHook#test_setup_unwritable): 1. check the existence
-	  of the file(directory) before touch it.  2. remove test
-	  file(directory) after the test.  see [ruby-core:50388].
-
-Sat Dec  1 01:51:06 2012  Koichi Sasada  <ko1@atdot.net>
-
-	[EXPERIMENTAL]
-	* iseq.c: add following two methods.
-	  * ISeq#line_trace_all returns all line traces (line numbers)
-	  * ISeq#line_trace_specify(pos, set) set `pos'th line event to
-	    specified_line event (if set is true).
-	  These features are introduced for debuggers (mainly to make
-	  breakpoint).
-
-	* iseq.h: add decl. of C APIs.
-
-	* test/ruby/test_iseq.rb: add tests.
-
-	* vm_trace.c: add `specified_line' event.
-
-	* include/ruby/ruby.h: ditto.
-
-Sat Dec  1 01:49:52 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/rubygems/test_gem_dependency_installer.rb: gems are of course
-	  binary files, so use a binary reading method when reading it.
-	  see [ruby-core:50388].
-
-Sat Dec  1 01:21:07 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/rubygems/command.rb (Gem::Command#get_all_gem_names_and_versions):
-	  who assumes that the pathname of a gem never contains ':' ?
-	  yes, on Unixen pathnames can contain ':', and on Windows they almost
-	  certainly contain ':'.  see [ruby-core:50388].
-
-	* lib/rubygems/requirement.rb (Gem::Requirement::PATTERN_RAW): extract
-	  the regexp to match the version specifier from PATTERN to use in
-	  above method.
-
-Sat Dec  1 00:48:19 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* ext/fiddle/extconf.rb, ext/fiddle/function.c
-	  (Fiddle::Function::STDCALL): FFI_STDCALL is not a macro, but an
-	  enumeration. [ruby-core:50398] [Bug #7483]
-
-Sat Dec  1 00:08:55 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/rubygems/test_gem_installer.rb
-	  (TestGemInstaller#test_check_executable_overwrite_other_non_gem):
-	  on Windows, rubygems always generate a wrapper .bat file when
-	  installing a file into bin, so testing no-overwrite a wrapper file
-	  and a non-wrapper file is nonsense.  see [ruby-core:50388].
-
-Fri Nov 30 23:39:58 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/rubygems/test_gem_installer.rb
-	  (TestGemInstaller#test_check_executable_overwrite_default_bin_dir):
-	  if the executable to be overwritten was generated by rubygems, the
-	  error message differs from the only copied one's.
-	  see [ruby-core:50388].
-
-Fri Nov 30 23:27:26 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/rubygems/test_gem_ext_ext_conf_builder.rb
-	  (TestGemExtExtConfBuilder::test_class_make): reading with binary mode
-	  of course introduce \r on Windows.  see [ruby-core:50388].
-
-Fri Nov 30 23:11:37 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/rubygems/specification.rb
-	  (Gem::Specification.validate_permissions): don't check executability
-	  of the source on Windows.  they will be wrapped to .bat files when
-	  installing.  see [ruby-core:50388].
-
-Fri Nov 30 22:44:14 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* vm_core.h (rb_vm_struct): add thread_destruct_lock field.
-	* thread.c (Init_Thread): ditto.
-	* thread.c (rb_vm_gvl_destroy): ditto.
-
-	* thread.c (thread_start_func_2): make sure vm->running_thread
-	  don't point to dead thread.
-	* thread.c (timer_thread_function): close a race against thread
-	  destruction. [Bug #4911][ruby-dev:43859]
-
-	* vm_core.h (rb_thread_set_current): reset running time of
-	  current thread instead of previous thread. We no longer
-	  assume previous running thread still live.
-
-Fri Nov 30 21:57:43 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* revert r38053 because it causes too many test failures.
-	  if you've already installed r38053 or later, remove the installed
-	  lib/ruby/gems/2.0.0 directory and reinstall this revision or later.
-
-Fri Nov 30 21:07:56 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/test/unit/parallel.rb (Test::Unit::Worker.run): wrap LoadError
-	  because it's Gem::LoadError sometimes.  see [Bug #6882]
-
-Fri Nov 30 20:47:44 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* thread.c: TracePoint#self returns invoking/exiting thread object
-	  at thread_begin/end event.
-
-	* test/ruby/test_settracefunc.rb: fix test.
-
-Fri Nov 30 19:55:17 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/ruby/memory_status.rb (Memory::Win32): use fiddle instead of dl,
-	  but I doubt fiddle is not compatible with dl. (if you are interested,
-	  see the diff.)  [ruby-core:50194] [Bug #7443]
-
-Fri Nov 30 19:37:44 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* defs/default_gems: Add base directory column.
-
-	* tool/rbinstall.rb:
-	  - Install .gemspecs of default gem to
-	    #{GEM_HOME}/specifications/default/.
-	  - Update files parameter of .gemspecs by relative path from
-	    library directory.
-
-Fri Nov 30 19:30:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* vm_trace.c:
-	  tracepoint_attr_return_value (TracePoint#return_value):
-	    include `:b_return` for method doc
-	  tracepoint_enable_m, tracepoint_disable_m (#enable/#disable):
-	    don't have block argument, document block scope
-
-Fri Nov 30 18:52:56 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_trace.c (tracepoint_disable_m, tracepoint_enable_m):
-	  fix block parameter.
-	  No argument should be given to a block which is passed
-	  to TracePoint#enable (and disable).
-
-Fri Nov 30 18:23:26 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* thread.c: rename Thread.control_interrupt
-	  to Thread.async_interrupt_timing.
-	  The option name `:never' is also changed to  `:defer'.
-	  [ruby-core:50375] [ruby-trunk - Feature #6762]
-
-	* thread.c: remove Thread.check_interrupt.
-	  This method is difficult to understand by name.
-
-	* thread.c: add Thread.async_interrupted?.
-	  This method check any deferred async interrupts.
-
-	* test/ruby/test_thread.rb: change tests for above.
-
-Fri Nov 30 18:24:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* vm_trace.c: Documentation for TracePoint API
-	  [ruby-core:47243] [Feature #6895]
-
-Fri Nov 30 17:43:50 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_cmp_m): try to compare with to_str result if
-	  possible before calling <=> method.  [ruby-core:49279] [Bug #7342]
-
-	* string.c (rb_str_cmp_m): use rb_check_funcall instead of respond_to
-	  and call.
-
-	* string.c (rb_str_cmp_m): return fixed value, one of -1,0,+1 always.
-
-Fri Nov 30 16:19:14 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_dump.c (rb_vm_bugreport): get rid of calling methods in sigsegv
-	  handler.  based on a patch by charliesome (Charlie Somerville)
-	  [ruby-core:49573] [Bug #7402]
-
-Fri Nov 30 16:05:44 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* NEWS:  Added RubyGems 2.0.0
-
-Fri Nov 30 15:24:37 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parser_yylex): fix false usage of local variable, it cannot
-	  appear in fname state [ruby-core:49659] [Bug #7408]
-
-Fri Nov 30 15:20:12 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/package.rb:  Load YAML for building gems.
-	* test/rubygems/test_gem_commands_contents_command.rb:  Sort expected
-	  output of default gem contents.  Re-fixes r38004 and r38005.
-
-Fri Nov 30 15:15:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* vm_trace.c (set_trace_func): Formatting of params and events
-
-Fri Nov 30 14:45:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/net/http.rb: Net::HTTP::Patch to list of HTTP Request Classes
-	  Patch by Ryunosuke SATO [Fixes #217 on github]
-
-Fri Nov 30 14:05:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/cgi.rb: CGI example for HTML generation
-	  Patch by Marcus Stollsteimer [ruby-core:50303] [Bug #7465]
-
-Fri Nov 30 13:52:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* time.c: Documentation improvements, grammar and formatting
-	  Patch by Bernd Homuth [ruby-core:49203] [Bug #7326]
-
-Fri Nov 30 13:48:33 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc.rb:  Set version to 4.0.0.preview2
-	* lib/rubygems.rb:  Set version to 2.0.0.preview2
-
-Fri Nov 30 13:11:53 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/commands/setup_command.rb:  Remove old files on install
-	  of RubyGems.  (not by rbinstall.rb).
-	* test/rubygems/test_gem_commands_setup_command.rb:  Test for above.
-
-Fri Nov 30 12:47:59 2012  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/abbrev.rb (Abbrev#abbrev): A fixed string prefix pattern
-	  should only match the beginning of each word, not the beginning
-	  of every line in it.
-
-	* lib/abbrev.rb (Abbrev#abbrev): Stop using a regexp that causes a
-	  false warning. [Bug #7471]
-
-Fri Nov 30 12:30:55 2012  Akinori MUSHA  <knu@iDaemons.org>
-
-	* test/test_abbrev.rb: Add tests for lib/abbrev.rb.
-
-Fri Nov 30 12:27:51 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/spec_fetcher.rb:  Allow prerelease spec fetching to fail
-	  for bundler.
-	* test/rubygems/test_gem_spec_fetcher.rb:  Test for above.
-
-Fri Nov 30 12:20:53 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rake/backtrace.rb:  Removed duplication in
-	  Rake::Backtrace::SUPPRESSED_PATHS
-	* test/rake/test_rake_backtrace.rb:  Skip tests when tmpdir is in the
-	  suppressed pattern.
-
-Fri Nov 30 11:07:45 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* revert r37993 to avoid SEGV in tests.
-
-Fri Nov 30 10:38:54 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/ri/driver.rb:  Relaxed matching for pages to be more
-	  user-friendly.
-	* test/rdoc/test_rdoc_ri_driver.rb:   Test for above.
-
-Fri Nov 30 09:50:16 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/markdown.rb:  Fixed warnings with -w
-
-Fri Nov 30 09:38:22 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (RB_GC_GUARD_PTR): add note.
-
-	* vm_backtrace.c (backtrace_to_str_ary): use RB_GC_GUARD() instead of
-	  RB_GC_GUARD_PTR() which has no effect.
-	  (backtrace_to_location_ary): ditto.
-	  (vm_backtrace_to_ary): ditto.
-
-Fri Nov 30 09:22:52 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/commands/contents_command.rb:  Sort output from command.
-	  Replaces r38004, r38005
-	* test/rubygems/test_gem_commands_contents_command.rb:  ditto.
-
-	* lib/rubygems/defaults.rb:  Use Gem.path_separator for jruby support.
-	* lib/rubygems/path_support.rb:  ditto
-
-Fri Nov 30 08:34:03 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/generator/darkfish.rb:  Silenced warning
-	* test/rdoc/test_rdoc_rdoc.rb:  ditto
-
-	* lib/rdoc/markup/parser.rb:  Use byteslice when available for
-	  performance
-	* test/rdoc/test_rdoc_markup_parser.rb:  Test for above
-	* lib/rdoc/test_case.rb:  ditto
-
-	* lib/rdoc/parser/ruby.rb:  Fixed bug parsing yield({})
-	* test/rdoc/test_rdoc_parser_ruby.rb (end):
-
-	* lib/rdoc/rubygems_hook.rb:  Skip default gems.  Display generator
-	  name properly.
-	* test/rdoc/test_rdoc_rubygems_hook.rb:  Test for above
-
-	* lib/rdoc/servlet.rb:  Fixed typo.
-
-Fri Nov 30 08:09:56 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* gc.c : remove a unused function.
-
-Fri Nov 30 07:46:42 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* gc.c (rb_objspace_call_finalizer): finalize_deferred may free up
-	  a object which is reachable from a part after this function,
-	  e.g. ruby_vm_destruct(). [ruby-dev:46647] [Bug #7452]
-
-	* test/ruby/test_gc.rb (test_finalizing_main_thread): add a test
-	  for above.
-
-Fri Nov 30 07:43:44 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* thread.c (rb_thread_interrupted): avoid warning of
-	  implicit conversion.
-
-	* thread.c (rb_threadptr_execute_interrupts): ditto.
-
-Fri Nov 30 07:34:28 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_backtrace.c: add GC guards.
-
-Fri Nov 30 07:21:33 2012  Koichi Sasada  <ko1@atdot.net>
-
-	[EXPERIMENTAL: NEED DISCUSS]
-	* vm_trace.c: add events
-	  * :thread_begin - hook at thread beginning.
-	  * :thread_end - hook at thread ending.
-	  * :b_call - hook at block enter.
-	  * :b_return - hook at block leave.
-	  This change slow down block invocation.
-	  Please try and give us feedback until 2.0 code freeze.
-
-	* include/ruby/ruby.h: ditto.
-
-	* compile.c (rb_iseq_compile_node): ditto.
-
-	* insns.def: ditto.
-
-	* thread.c: ditto.
-
-	* vm.c: ditto.
-
-	* include/ruby/debug.h: add a comment.
-
-	* test/ruby/test_settracefunc.rb: add a tests.
-
-Fri Nov 30 06:56:30 2012  Ryan Davis  <ryand-ruby@zenspider.com>
-
-	* test/minitest/*: Imported minitest 4.3.2 (r8027)
-
-Fri Nov 30 04:16:29 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rake/*:  Updated to rake 0.9.5
-	* test/rake/*:  ditto.
-	* NEWS:  ditto.
-
-Fri Nov 30 02:53:47 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* vm.c: add a return hook when a method raises an exception.
-
-	* probes_helper.h: look up klass and method if none are provided.
-
-	* eval.c: update macro usage.
-
-	* vm_eval.c: ditto.
-
-	* vm_insnhelper.c: ditto.
-
-	* test/dtrace/test_function_entry.rb: test for change.
-
-Fri Nov 30 02:27:12 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* compile.c (compile_array_): refix r37991 remove assertion:
-	  it is true only if type == COMPILE_ARRAY_TYPE_HASH.
-	  [ruby-dev:46658] [Bug #7466]
-
-	* vm.c (m_core_hash_from_ary): add assertion instead of above.
-
-	* vm.c (m_core_hash_merge_ary): ditto.
-
-Thu Nov 29 19:15:14 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (compile_array_): hash elements must be paired even for
-	  literal elements.  [ruby-dev:46658] [Bug #7466]
-
-Thu Nov 29 22:39:35 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* ext/openssl/ossl_ssl.c (ssl_npn_encode_protocol_i): fix byte order
-	  issue on big-endian architecture [ruby-core:50292] [Bug #7463]
-
-Thu Nov 29 22:23:31 2012  Hiroshi Nakamura  <nahi@ruby-lang.org>
-
-	* test/openssl/test_cipher.rb (test_ctr_if_exists): add CTR mode test
-	  if underlying OpenSSL supports it. See #4408
-
-Thu Nov 29 21:42:16 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_method.c (rb_method_entry_make): add a method entry with
-	  VM_METHOD_TYPE_REFINED to the class refined by the refinement if
-	  the target module is a refinement.  When a method entry with
-	  VM_METHOD_TYPE_UNDEF is invoked by vm_call_method(), a method with
-	  the same name is searched in refinements.  If such a method is
-	  found, the method is invoked.  Otherwise, the original method in
-	  the refined class (rb_method_definition_t::body.orig_def) is
-	  invoked.  This change is made to simplify the normal method lookup
-	  and to improve the performance of normal method calls.
-
-	* vm_method.c (EXPR1, search_method, rb_method_entry),
-	  vm_eval.c (rb_call0, rb_search_method_entry): do not use
-	  refinements for method lookup.
-
-	* vm_insnhelper.c (vm_call_method): search methods in refinements if
-	  ci->me is VM_METHOD_TYPE_REFINED.  If the method is called by
-	  super (i.e., ci->call == vm_call_super_method), skip the same
-	  method entry as the current method to avoid infinite call of the
-	  same method.
-
-	* class.c (include_modules_at): add a refined method entry for each
-	  method defined in a module included in a refinement.
-
-	* class.c (rb_prepend_module): set an empty table to
-	  RCLASS_M_TBL(klass) to add refined method entries, because
-	  refinements should have priority over prepended modules.
-
-	* proc.c (mnew): use rb_method_entry_with_refinements() to get
-	  a refined method.
-
-	* test/ruby/test_refinement.rb (test_inline_method_cache): do not skip
-	  the test because it should pass successfully.
-
-	* test/ruby/test_refinement.rb (test_redefine_refined_method): new
-	  test for the case a refined method is redefined.
-
-Thu Nov 29 17:45:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* variable.c (rb_const_set): show namespace in warning messages.
-	  [Feature #7190]
-
-Thu Nov 29 17:31:53 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/rubygems.rb (Gem.load_yaml): return if Kernel#gem is not defined
-	  yet. This causes crash if test-all requires libraries in a certain
-	  order. A simple reproducible code is
-	  ruby --disable-gem -e'require"yaml";require"minitest/autorun"'
-
-Thu Nov 29 17:19:26 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/tracer.rb:  Updated to match removal of custom_require from
-	  RubyGems.
-	* test/test_tracer.rb:  ditto.  Improved failure message if the test
-	  fails
-
-Thu Nov 29 17:15:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* gc.c: Documentation for GC, GC::Profiler, ObjectSpace, and
-	  ObjectSpace::WeakMap [ruby-core:50245] [Bug #7449]
-
-Thu Nov 29 17:12:26 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* tool/generic_erb.rb, tool/id2token.rb: add --path-separator option
-	  for mingw where make and built ruby live in different world.
-
-	* tool/vpath.rb: extract from tool/instruction.rb.
-
-Thu Nov 29 17:11:06 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/io/wait/test_io_wait.rb (TestIOWait#fill_pipe):
-	  Errno::EWOULDBLOCK may not be the same as Errno::EAGAIN.  patch by
-	  phasis68 (Heesob Park) at [ruby-core:49894].  [Bug #7420]
-
-Thu Nov 29 17:03:38 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/test_case.rb:  Determine path to certificates to avoid
-	  build-dir problems.
-	* test/rubygems/test_gem_security_signer.rb:  Use predetermined paths
-	  to avoid build-dir problems.
-
-Thu Nov 29 16:18:14 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/test_case.rb:  Disable loading of keys and certificates
-	  outside rubygems or ruby tests as the files are not available (or
-	  necessary).
-
-Thu Nov 29 16:14:41 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_backtrace.c (rb_debug_inspector_open): use RARRAY_LENINT() for
-	  int variable.
-
-Thu Nov 29 15:59:55 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* include/ruby/debug.h: add rb_debug_inspector_* APIs.
-
-	* vm_backtrace.c: ditto.
-
-	* common.mk: add dependency from vm_backtrace.o to
-	  include/ruby/debug.h.
-
-	* proc.c (rb_binding_new_with_cfp): constify.
-
-	* vm.c (rb_vm_get_ruby_level_next_cfp): constify.
-
-	* vm_core.h, vm_trace.c: move decls.
-
-Thu Nov 29 15:56:14 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/rdoc/test_case.rb (RDoc::TestCase#verbose_capture_io):
-	  defined for asserts of warnings.
-
-	* test/rdoc: use verbose_capture_io on asserts of warnings.
-	  they failed when tests was run with RUBYOPT=-W0.
-
-Thu Nov 29 15:53:38 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/psych/extconf.rb: added --enable-bundled-libyaml option.  this
-	  enforces using bundled libyaml.
-
-Thu Nov 29 15:51:54 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems*:  Updated to RubyGems 2.0
-	* test/rubygems*:  ditto.
-
-	* common.mk (prelude):  Updated for RubyGems 2.0 source rearrangement.
-
-	* tool/change_maker.rb:  Allow invalid UTF-8 characters in source
-	  files.
-
-Thu Nov 29 15:38:14 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* include/ruby/debug.h: provide rb_tracearg_*() APIs,
-	  instead of rb_tracepoint_attr_*().
-	  These APIs are for debuggers/profilers.
-	  They will be explained in another docs sometime.
-
-	* vm_trace.c: ditto.
-
-Thu Nov 29 15:10:45 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* test/minitest/test_minitest_unit.rb: restore orig_verbose only
-	  if it is set. This broke rdoc's tests.
-	  http://u64.rubyci.org/~chkbuild/ruby-trunk/log/20121129T050102Z.diff.html.gz
-
-Thu Nov 29 14:56:30 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_trace.c (rb_tracepoint_attr_method_id):
-	  rename TracePoint#id to TracePoint#method_id.
-
-	* include/ruby/debug.h: ditto.
-
-	* test/ruby/test_settracefunc.rb: ditto,
-
-Thu Nov 29 14:49:10 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_trace.c (rb_tracepoint_attr_defined_class):
-	  rename TracePoint#klass to TracePoint#defined_class.
-	  [ruby-core:50187] Re: [ruby-trunk - Feature #6895]
-
-	* include/ruby/debug.h: ditto.
-
-	* test/ruby/test_settracefunc.rb: ditto.
-
-Thu Nov 29 14:27:57 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (gc_stat): prepare Symbol objects at first time
-	  to make it fast.
-
-Thu Nov 29 14:02:15 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (gc_stat): GC.stat supports new information
-	  * total_allocated_object: total allocated object number.
-	  * total_freed_object: total freed object number.
-	  Above two numbers are only accumulated and they will
-	  overflow (return to 0). Please use them as a hint.
-
-Thu Nov 29 12:13:54 2012  Ryan Davis  <ryand-ruby@zenspider.com>
-
-	* lib/minitest/*: Imported minitest 4.3.2 (r8026)
-	* test/minitest/*: ditto
-
-Thu Nov 29 11:06:06 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (thread_start_func_2): remove unused code. When
-	  th->safe_level == 4, th->errinfo never be thrown. So, to
-	  create new exception makes no sense.
-
-Thu Nov 29 10:29:53 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_backtrace.c: same as a last patch.
-
-Thu Nov 29 10:24:25 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_backtrace.c: use `long' for return values of `NUM2LONG()'.
+	* test/ruby/test_method.rb: add a test.
 
-Thu Nov 29 09:52:08 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Sun Dec 20 11:01:57 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* thread.c (do_select): suppress warning (uninitialized value warning)
-	  with UNINITIALIZED_VAR().
+	* proc.c (rb_mod_define_method): fix notation.
 
-Thu Nov 29 09:36:09 2012  Koichi Sasada  <ko1@atdot.net>
+Sun Dec 20 10:54:15 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* eval.c (ruby_cleanup): delay THREAD_KILLED timing.
-	  It should be located just before rb_thread_terminate_all().
+	* proc.c (proc_new): fix notation.
 
-Thu Nov 29 09:10:17 2012  Koichi Sasada  <ko1@atdot.net>
+Sun Dec 20 00:29:00 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_backtrace.c (vm_backtrace_to_ary): support range argument
-	  like Array#[].
-	  [ruby-core:50092] [ruby-trunk - Feature #7434]
-	  Test and document is not available. Please help us.
+	* proc.c (rb_proc_get_iseq): proc made from symbol does not have
+	  iseq.  fix infinite loop.  [ruby-core:72381] [Bug #11845]
 
-Thu Nov 29 06:46:33 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Sat Dec 19 20:06:10 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* thread.c (thread_start_func_2): small cleanups.
+	* enc/windows_1250.c: Should not use C++ style comments (C99 feature).
+	  [Bug #11843]
 
-Thu Nov 29 06:37:08 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Sat Dec 19 17:17:04 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* thread.c (thread_start_func_2): remove unused code.
-	  this function never be used for main thread.
+	* lib/webrick/utils.rb (WEBrick::Utils::TimeoutHandler#initialize):
+	  use WEBrick::Utils::TimeoutHandler::Thread, which is ignored by
+	  LeakChecker#find_threads, instead of ::Thread to get rid of
+	  thread leak checker.  since this TimeoutHandler is resident
+	  during tests because of Singleton, it waits for the next timeout
+	  if it has any schedules.  in the case of nested timeouts, inner
+	  timeout does not cancel outer timeouts and then those schedules
+	  still remain.
 
-Thu Nov 29 06:27:55 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Sat Dec 19 14:28:01 2015  Jake Worth  <jakeworth82@gmail.com>
 
-	* thread.c (thread_start_func_2): remove unused code.
-	  errinfo = th->errinfo; and errinfo = rb_errinfo(); are
-	  the same.
+	* ext/zlib/zlib.c (Init_zlib): [DOC] Fix double-word typo and
+	  grammatical error.  [Fix GH-1162]
 
-Thu Nov 29 05:26:32 2012  Koichi Sasada  <ko1@atdot.net>
+Sat Dec 19 14:23:59 2015  Jake Worth  <jakeworth82@gmail.com>
 
-	* vm_backtrace.c (backtrace_to_str_ary2): rename to backtrace_to_str_ary.
+	* lib/csv.rb (CSV#initialize): [DOC] Fix double-word typo.
+	  [Fix GH-1161]
 
-	* vm_backtrace.c (rb_backtrace_to_str_ary): use `backtrace_to_str_ary()'.
+Sat Dec 19 10:33:33 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* vm_backtrace.c (backtrace_to_frame_ary): rename to
-	  backtrace_to_location_ary.
+	* enc/iso_8859_2.c, enc/windows_1250.c: separate Windows-1250
+	  from ISO-8859-2 to fix 0x80..0x9e range (from Kimihito Matsui)
 
-Thu Nov 29 05:19:25 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+Fri Dec 18 21:26:54 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* probes.d: Change function-entry probe to method-entry.
-	* insns.def: ditto
-	* probes_helper.h: ditto
-	* test/dtrace/test_function_entry.rb: ditto
-	* test/dtrace/test_singleton_function.rb: ditto
-	* vm.c: ditto
-	* vm_eval.c: ditto
-	* vm_insnhelper.c: ditto
+	* lib/webrick/utils.rb (WEBrick::Utils::TimeoutHandler): To prevent
+	  potential deadlocks, Queue is used to tell update of @timeout_info
+	  instead of sleep and wakeup. [Bug #11742] [ruby-dev:49387]
 
-Thu Nov 29 04:45:17 2012  Koichi Sasada  <ko1@atdot.net>
+Fri Dec 18 17:24:09 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* vm_backtrace.c: rename Class name from
-	  ::RubyVM::Backtrace and ::RubyVM::Backtrace::Location
-	  to ::Thread::Backtrace and ::Thread::Backtrace::Location.
+	* compile.c (ibf_load_object_string): use fstring if frozen string.
 
-Wed Nov 28 23:52:02 2012  Masaya Tarui  <tarui@ruby-lang.org>
+Fri Dec 18 16:54:38 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* NEWS (Thread) remove incompatible changes about trap.
+	* ext/stringio/stringio.c (strio_set_encoding): add StringIO's own
+	  encoding and separate it from the buffer string to override the
+	  encoding of string when reading.  [ruby-core:72189] [Bug #11827]
+	  note that setting the encoding of its buffer string directly
+	  without StringIO#set_encoding may cause unpredictable behavior.
 
-Wed Nov 28 23:39:01 2012  Koichi Sasada  <ko1@atdot.net>
+Fri Dec 18 16:50:35 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* thread.c (rb_mutex_sleep): fix to allow spurious wakeup.
-	  [ruby-dev:46654] [ruby-trunk - Bug #7455]
+	* compile.c (ibf_load_setup): check tainted string argument.
 
-	* NEWS: write about spurious wakeup.
+Fri Dec 18 16:12:13 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Nov 28 22:57:23 2012  Koichi Sasada  <ko1@atdot.net>
+	* vm_core.h: define USE_LAZY_LOAD if it is not defined.
 
-	* thread_win32.c: catch up latest change of BLOCKING_REGION.
+Fri Dec 18 15:40:06 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Nov 28 22:54:21 2012  Koichi Sasada  <ko1@atdot.net>
+	* ext/stringio/stringio.c (strio_unget_bytes): extract from
+	  strio_ungetbyte to share with strio_ungetc.
 
-	* vm_insnhelper.c (vm_call_method): fix undefined behavior.
-	  Should not access scope local variable from outer scope.
+Fri Dec 18 12:39:42 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Wed Nov 28 22:20:55 2012  Masaya Tarui  <tarui@ruby-lang.org>
+	* doc/syntax/*.rdoc: separated modifier at sentence.
+	  [ci skip][fix GH-1121] Patch by @clandry94
 
-	* test/ruby/test_thread.rb (test_thread_status_in_trap): change test for
-	  thread status in trap. now can accept Thread#join and Thread#value in trap.
+Fri Dec 18 12:09:21 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Nov 28 21:58:47 2012  Koichi Sasada  <ko1@atdot.net>
+	* ext/stringio/stringio.c (strio_ungetbyte): pad with \000 when
+	  the current position is after the end.
 
-	* include/ruby/thread.h (rb_thread_call_without_gvl2): change
-	  meaning of function.
-	  This function is called with same parameters of
-	  `rb_thread_call_without_gvl()'.
-	  However, if interrupts are detected, then return immediately.
+Fri Dec 18 11:24:48 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* thread.c: implement `rb_thread_call_without_gvl2()'.
+	* vm_method.c (rb_method_entry_make, check_override_opt_method):
+	  should check whether a newly created method overrides an optimize
+	  method in case the method is defined in a prepended module of a
+	  built-in class.
+	  [ruby-core:72226] [Bug #11836]
 
-Wed Nov 28 21:31:21 2012  Masaya Tarui  <tarui@ruby-lang.org>
+Fri Dec 18 11:09:38 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* thread.c (thread_join_sleep): check spurious wakeup by itself for
-	corresponding status change in trap context.
-	* vm_core.h (struct rb_thread_struct): add rb_thread_list_t and use as join_list for
-	reentry by trap context.
-	* thread.c (thread_start_func_2): ditto.
-	* thread.c (remove_from_join_list): ditto.
-	* thread.c (rb_thread_atfork): ditto.
-	* thread.c (thread_join): ditto. & remove trap handler check.
-	* thread.c (sleep_forever): add argument : spurious_check.
-	* thread.c (sleep_timeval): ditto.
-	* thread.c (rb_thread_sleep_forever): set spurious_check.
-	* thread.c (rb_thread_sleep_deadly): ditto.
-	* thread.c (sleep_for_polling): ditto.
-	* thread.c (rb_thread_wait_for): ditto.
-	* thread.c (sleep_wait_for_interrupt): bypass spurious_check.
+	* vm.c (vm_exec): call RUBY_DTRACE_CMETHOD_RETURN_HOOK instead of
+	  RUBY_DTRACE_METHOD_RETURN_HOOK.
 
-Wed Nov 28 21:23:18 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Dec 18 10:24:44 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/psych/yaml/emitter.c (yaml_emitter_write_indicator): constify.
+	* lib/irb/ruby-lex.rb: fixed parse error for striped heredocument syntax.
+	  [fix GH-1127] Patch by @koic
 
-	* ext/psych/yaml/emitter.c (yaml_emitter_write_block_scalar_hints):
-	  ditto.
+Fri Dec 18 09:44:47 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/psych/extconf.rb: mingw32 also needs macros for win32, not
-	  only mswin32.
+	* ext/pty/pty.c: fix double words typo.
+	  [ci skip][fix GH-1157] Patch by @jwworth
 
-	* ext/psych/extconf.rb: compile sources in the source directory
-	  without copying by using VPATH.
+Fri Dec 18 09:42:45 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Wed Nov 28 21:18:57 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/nkf/nkf-utf8/utf8tbl.c: fix a typo.
+	  [ci skip][fix GH-1159] Patch by @akshay-vishnoi
+	* ext/nkf/nkf-utf8/utf8tbl.h: ditto.
 
-	* lib/mkmf.rb (MakeMakefile#each_compile_rules): splat $(*VPATH*) for
-	  each VPATH elements.
+Fri Dec 18 07:39:01 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Wed Nov 28 16:40:14 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* vm.c (rb_vm_check_redefinition_opt_method): should check the real
+	  class instead of the origin iclass.
+	  [ruby-core:72188] [Bug #11826]
 
-	* vm_core.h (enum rb_thread_status): remove THREAD_TO_KILL
-	* vm_core.h (struct rb_thread_struct): add to_kill field
-	* thread.c (terminate_i): convert THREAD_TO_KILL to to_kill.
-	* thread.c (rb_threadptr_to_kill): ditto.
-	* thread.c (rb_thread_kill): ditto.
-	* thread.c (rb_thread_wakeup_alive): ditto.
-	* thread.c (thread_list_i): ditto.
-	* thread.c (static const char): ditto.
-	* thread.c (thread_status_name): ditto.
-	* thread.c (rb_thread_status): ditto.
-	* thread.c (rb_thread_inspect): ditto.
-	* vm_backtrace.c (thread_backtrace_to_ary): ditto.
+Thu Dec 17 22:13:10 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* thread.c (rb_threadptr_execute_interrupts): fix thread status
-	  overwritten issue. [Bug #7450] [ruby-core:50249]
-
-	* test/ruby/test_thread.rb (test_hread_status_raise_after_kill):
-	  test for the above.
-	* test/ruby/test_thread.rb (test_thread_status_in_trap): test for
-	  thread status in trap.
-	* test/ruby/test_thread.rb (test_status_and_stop_p): remove
-	  Thread.control_interrupt unsafe test. Thread#kill no longer
-	  changes thread status. Instead of, Thread#kill receiver changes
-	  their own status when receiving kill signal.
-
-Wed Nov 28 16:21:46 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (struct rb_mutex_struct): add allow_trap field.
-	* internal.h (rb_mutex_allow_trap): added.
-	* thread.c (rb_mutex_lock, rb_mutex_unlock): check mutex->allow_trap.
-	* thread.c (mutex_sleep): remove trap check because it uses
-	  rb_mutex_lock and rb_mutex_unlock internally.
-	* thread.c (rb_mutex_allow_trap): new helper function for the above.
-
-	* io.c (io_binwrite): mark fptr->write_lock as writable in trap.
-
-	* test/ruby/test_signal.rb (test_trap_puts): test for the above.
-
-Wed Nov 28 16:59:12 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* proc.c: remove Proc#== and Proc#eql?.
-	  Proc objects compared with their object ids.
-	  [Bug #4559]
+	* vm_args.c (vm_caller_setup_arg_block): remove code for ifunc
+	  because it was made unnecessary by r52138.
 
-	* test/ruby/test_proc.rb: remove related test.
-
-Wed Nov 28 16:41:04 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/servlet.rb:  Add support for serving documentation from a
-	  subdirectory.
-	* lib/rdoc/generator/darkfish.rb:  ditto
-	* test/rdoc/test_rdoc_servlet.rb:  Test for above
-	* test/rdoc/test_rdoc_servlet.rb:  ditto
-
-Wed Nov 28 15:37:17 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in: fix r37924: run only on i[3-6]86-linux.
-
-Wed Nov 28 15:31:11 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* io.c (FMODE_SYNCWRITE): removed unused macro.
-
-Wed Nov 28 15:19:25 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* configure.in: revert r37911, r37906 and r37904 which break build
-	  with non-gcc and/or non-IA32 compilers, e.g. Solaris Studio,
-	  Fujitsu C Compiler. [ruby-dev:46646] [Bug #7451]
-
-Wed Nov 28 14:50:55 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* ext/psych/extconf.rb: copy sources into build directory,
-	  not into srcdir.
-
-Wed Nov 28 14:34:06 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (rb_mutex_lock): moved trap context check from
-	  rb_mutex_trylock because try_lock have no change to make
-	  a deadlock.
-	* thread.c (rb_mutex_trylock): ditto.
-	* NEWS: news for the above.
-
-Wed Nov 28 13:39:54 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (thread_s_new): uses main_thread->status instead of
-	  th->inhibit_thread_creation for preventing thread creation.
-	* vm_core.h (rb_vm_struct): remove inhibit_thread_creation field.
-	* thread.c (rb_thread_terminate_all): ditto.
-
-Wed Nov 28 13:27:29 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/extconf.rb: use embedded libyaml if no system libyaml is
-	  found. [ruby-core:49463]
-	* ext/psych/lib/psych.rb: updating to psych 2.0.0
-	* ext/psych/lib/psych/deprecated.rb: updated docs
-	* ext/psych/psych.gemspec: updated to psych 2.0.0
-	* ext/psych/psych.h: fixing header file include for rename
-	* ext/psych/psych_emitter.c: renamed to avoid libyaml conflict.
-	* ext/psych/psych_emitter.h: ditto
-	* ext/psych/psych_parser.c: ditto
-	* ext/psych/psych_parser.h: ditto
-	* ext/psych/psych_to_ruby.c: ditto
-	* ext/psych/psych_to_ruby.h: ditto
-	* ext/psych/psych_yaml_tree.c: ditto
-	* ext/psych/psych_yaml_tree.h: ditto
-	* ext/psych/yaml/LICENSE: embedding libyaml 0.1.4
-	* ext/psych/yaml/api.c: ditto
-	* ext/psych/yaml/config.h: ditto
-	* ext/psych/yaml/dumper.c: ditto
-	* ext/psych/yaml/emitter.c: ditto
-	* ext/psych/yaml/loader.c: ditto
-	* ext/psych/yaml/parser.c: ditto
-	* ext/psych/yaml/reader.c: ditto
-	* ext/psych/yaml/scanner.c: ditto
-	* ext/psych/yaml/writer.c: ditto
-	* ext/psych/yaml/yaml.h: ditto
-	* ext/psych/yaml/yaml_private.h: ditto
-
-Wed Nov 28 12:54:59 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (thread_join): A trap handler check was moved from
-	  thread_join_m because Thread#value should be raised an exception
-	  too.
-	* thread.c (thread_join_m): remove trap handler check.
-	* test/ruby/test_thread.rb (test_thread_join_in_trap): add test
-	  for thread#value.
-	* NEWS: documentation fix for the above.
-
-Wed Nov 28 11:07:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* ext/fiddle/closure.c: Documentation for Fiddle
-	* ext/fiddle/lib/fiddle/import.rb: ditto
-	* ext/fiddle/lib/fiddle/value.rb: ditto
-	* ext/fiddle/lib/fiddle/pack.rb: ditto
-	* ext/fiddle/lib/fiddle/cparser.rb: ditto
-	* ext/fiddle/lib/fiddle/struct.rb: ditto
-	* ext/fiddle/lib/fiddle/function.rb: ditto
-
-Wed Nov 28 09:15:51 2012  Ryan Davis  <ryand-ruby@zenspider.com>
-
-	* ext/strscan/strscan.c: Added #charpos for multibyte string position.
-	* test/strscan/test_stringscanner.rb: ditto
-
-Wed Nov 28 09:00:34 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/fiddle/fiddle.c: adding alignment constants for compatibility
-	  with DL.
-	* ext/fiddle/fiddle.h: ditto
-	* ext/fiddle/lib/fiddle/cparser.rb: importing the C parser for DL
-	  backwards compatibility.
-	* ext/fiddle/lib/fiddle/import.rb: importing the import DSL for DL
-	  backwards compatibility.
-	* ext/fiddle/lib/fiddle/pack.rb: importing structure pack for DL
-	  backwards compatibility.
-	* ext/fiddle/lib/fiddle/value.rb: ditto
-	* ext/fiddle/lib/fiddle/struct.rb: importing struct DSL for DL backwards
-	  compatibility.
-	* test/dl/test_c_struct_entry.rb: importing tests
-	* test/dl/test_c_union_entity.rb: ditto
-	* test/dl/test_cparser.rb: ditto
-	* test/dl/test_import.rb: ditto
-	* test/fiddle/test_c_struct_entry.rb: ditto
-	* test/fiddle/test_c_union_entity.rb: ditto
-	* test/fiddle/test_cparser.rb: ditto
-	* test/fiddle/test_import.rb: ditto
+Thu Dec 17 16:13:10 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Wed Nov 28 08:56:00 2012  Zachary Scott <zachary@zacharyscott.net>
+	* proc.c (rb_block_arity): should not call GetProcPtr() for symbols.
+	  [ruby-core:72205] [Bug #11830]
 
-	* doc/globals.rdoc: Add documentation file for magic globals
-	[ruby-core:29048] [Bug #3022]
+Thu Dec 17 14:16:29 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Nov 28 08:55:00 2012  Zachary Scott <zachary@zacharyscott.net>
+	* string.c (rb_str_scrub): the result should be infected by the
+	  original string.
 
-	* .document: Add README's to be included with docs
+Thu Dec 17 13:35:27 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Nov 28 08:26:00 2012  Zachary Scott <zachary@zacharyscott.net>
+	* transcode.c (rb_econv_substr_append, econv_primitive_convert):
+	  the result should be infected by the original string.
 
-	* ext/dl/lib/dl.rb: Deprecation notice for DL
+Thu Dec 17 09:46:08 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Nov 28 08:25:00 2012  Zachary Scott <zachary@zacharyscott.net>
+	* re.c (reg_names_iter): should consider encoding of regexp.
+	  [ruby-core:72185] [Bug #11825]
 
-	* ext/fiddle/closure.c: Documentation for Fiddle
-	* ext/fiddle/pointer.c: ditto
-	* ext/fiddle/function.c: ditto
-	* ext/fiddle/lib/fiddle.rb: ditto
-	* ext/fiddle/fiddle.c: ditto
-	* ext/fiddle/handle.c: ditto
+Thu Dec 17 03:52:10 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Nov 28 04:53:40 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+	* vm.c (vm_make_env_each): should not compare with Qfalse and FALSE.
+	  Pointed at http://d.hatena.ne.jp/nagachika/20151216/ruby_trunk_changes_53128_53163
 
-	* ext/fiddle/handle.c: Make Fiddle independent of DL, copy DL::Handle
-	  to Fiddle::Handle.
-	* ext/fiddle/pointer.c: Make Fiddle independent of DL, copy
-	  DL::Pointer to Fiddle::Pointer.
-	* test/fiddle/test_func.rb: relevant tests
-	* test/fiddle/test_handle.rb: ditto
-	* test/fiddle/test_pointer.rb: ditto
-	* ext/dl/lib/dl/struct.rb: use Fiddle::Pointer if available
-	* ext/fiddle/extconf.rb: check for dlfcn.h
-	* ext/fiddle/fiddle.c: add constants for sizeof() things
-	* ext/fiddle/fiddle.h: include dlfcn.h
-	* ext/fiddle/function.c: expose a C function for creating new
-	  Fiddle::Function objects.
-	* ext/fiddle/lib/fiddle.rb: include constants for dl backwards compat
-	* ext/fiddle/lib/fiddle/function.rb: read the pointer from the
-	  function for dl backwards compat.
-	* test/dl/test_callback.rb: check the addresses of the pointers rather
-	  than their types.
-	* test/fiddle/helper.rb: remove dependency on dl
-	* test/fiddle/test_closure.rb: ditto
-	* test/fiddle/test_fiddle.rb: ditto
+Thu Dec 17 03:15:25 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Nov 28 03:03:28 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* vm_insnhelper.c (vm_call_method_each_type): should not set fastpath
+	  with keyword arguments for VM_METHOD_TYPE_ATTRSET type methods.
 
-	* configure.in (opt-dir): don't use non portable flag -E of sed.
+	  Normally, we can not use keyword arguments for this kind of methods,
+	  (obj.foo = 1), but we can set alias names for them.
+	  [Bug #11657]
 
-Wed Nov 28 02:55:35 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* test/ruby/test_keyword.rb: add a test for this fix.
 
-	* configure.in (ARCH_FLAG): __sync_val_compare_and_swap_4 needs
-	  -march=$target_cpu on at least linux gcc 4.1.
-	  patched by KOSAKI Motohiro
+Wed Dec 16 20:32:43 2015  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-Tue Nov 27 22:03:09 2012  Akinori MUSHA  <knu@iDaemons.org>
+	* ext/fiddle/handle.c: check tainted string arguments.
+	  Patch provided by tenderlove and nobu.
 
-	* string.c (rb_str_enumerate_chars, rb_str_enumerate_codepoints)
-	  (rb_str_enumerate_lines): Dummy initialization of ary has been
-	  replaced with UNINITIALIZED_VAR().
+	* test/fiddle/test_handle.rb (class TestHandle): add test for above.
 
-Tue Nov 27 21:29:00 2012  Kenta Murata  <mrkn@mrkn.jp>
 
-	* bignum.c (bigdivrem): optimize the way to retry calculation of
-	  bigdivrem so that the calculation is started from the point where
-	  the last interruption was occurred.
+Wed Dec 16 19:30:56 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* bignum.c (bigdivrem1): ditto.
+	* vm.c (vm_make_proc_from_block): should convert a Symbol to a Proc.
+	  [ruby-core:72083] [Bug #11811]
 
-	* test/ruby/test_bignum.rb: add a test case for rb_bigdivrem in the
-	  case that an interruption is occurred during bigdivrem1 is running.
+Wed Dec 16 16:17:34 2015  Eric Wong  <e@80x24.org>
 
-Tue Nov 27 19:56:43 2012  Koichi Sasada  <ko1@atdot.net>
+	* test/ruby/test_io.rb: fix spelling errors
 
-	* vm.c (rb_vm_make_env_object): make Proc object if Env is possible
-	  to point block.
-	  [ruby-core:41038] [ruby-trunk - Bug #5634]
+Wed Dec 16 16:04:49 2015  Eric Wong  <e@80x24.org>
 
-	* vm.c (rb_vm_make_proc): No need to make Proc object here.
+	* NEWS: note IO#advise change [ruby-core:72168]
 
-	* bootstraptest/test_proc.rb: add tests.
+Wed Dec 16 15:35:13 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Nov 27 18:51:06 2012  Naohisa Goto  <ngotogenome@gmail.com>
+	* vm.c: fix mark miss for proc given as passed block.
+	  [Bug #11750]
 
-	* ruby_atomic.h (ATOMIC_CAS): added for Solaris and other platforms.
-	* ruby_atomic.h, signal.c (NEED_RUBY_ATOMIC_OPS): renamed from
-	  NEED_RUBY_ATOMIC_EXCHANGE.
-	* signal.c (ruby_atomic_compare_and_swap): naive, non-atomic
-	  compare-and-swap implementation only used for platforms without
-	  valid support for atomic operations.
+	* vm.c (vm_make_proc_from_block): should return a Proc object
+	  if block is given. Previous implementation returns
+	  a Proc object only when corresponding Proc object is not
+	  available.
 
-Tue Nov 27 17:43:46 2012  Eric Hodel  <drbrain@segment7.net>
+	* vm.c (vm_make_env_each): ditto.
 
-	* lib/rdoc/*:  Added --root option for building documentation outside
-	  the source directory.
-	* test/rdoc/*:  ditto
-	* common.mk (rdoc):  Added --root to rdoc rule
+	* test/ruby/test_proc.rb: add a test for this bug.
 
-Tue Nov 27 16:24:45 2012  Eric Hodel  <drbrain@segment7.net>
+Wed Dec 16 12:24:59 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
-	* test/rdoc/test_rdoc_ri_paths.rb:  Fixed duplicate path bug which
-	  caused windows failures.
+	* test_struct.rb: Test that initialize is overridable [#11708]
 
-Tue Nov 27 16:06:00 2012  Eric Hodel  <drbrain@segment7.net>
+Wed Dec 16 10:49:51 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/rdoc/test_rdoc_generator_darkfish.rb:  Updated tests for windows
-	* test/rdoc/test_rdoc_options.rb:  ditto
-	* test/rdoc/test_rdoc_parser.rb:  ditto
-	* test/rdoc/test_rdoc_rdoc.rb:  ditto
-	* test/rdoc/test_rdoc_ri_driver.rb:  ditto
-	* test/rdoc/test_rdoc_servlet.rb:  ditto
+	* parse.y (block_command, block_call): fix `&.` calls after
+	  block_call.  [Feature #11537]
 
-Tue Nov 27 15:13:51 2012  Eric Hodel  <drbrain@segment7.net>
+Wed Dec 16 00:53:45 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* common.mk (rdoc):  Set --debug for rdoc generation in case of bugs
+	* lib/webrick/utils.rb (WEBrick::Utils::TimeoutHandler): Acquire
+	  TimeoutMutex only when accessing @timeout_info for avoiding
+	  potential deadlock. [Bug #11742] [ruby-dev:49387]
 
-Tue Nov 27 14:56:45 2012  Eric Hodel  <drbrain@segment7.net>
+Wed Dec 16 00:39:27 2015  Jake Worth  <jakeworth82@gmail.com>
 
-	* lib/rdoc/rubygems_hook.rb:  Updated for (upcoming) RubyGems 2
-	  import.
-	* test/rdoc/test_rdoc_rubygems_hook.rb:  ditto
+	* doc/extension.rdoc: [DOC] fix double-word typo.  [Fix GH-1153]
 
-Tue Nov 27 13:59:29 2012  Narihiro Nakamura  <authornari@gmail.com>
+Wed Dec 16 00:25:41 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* NEWS: add improvements of the garbage collector.
+	* lib/webrick/utils.rb (WEBrick::Utils::TimeoutHandler#initialize):
+	  TimeoutMutex should be acquired when accessing @timeout_info.
+	  To avoid deadlock, interrupt() calls are delayed.
+	  Due to the mutex, it is safe to treat ary without ary.dup.
+	  [Bug #11742] [ruby-dev:49387]
 
-Tue Nov 27 13:27:46 2012  Eric Hodel  <drbrain@segment7.net>
+Tue Dec 15 23:13:10 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* lib/rdoc*:  Updated to RDoc 4.0 (pre-release)
-	* bin/rdoc:  ditto
-	* test/rdoc*:  ditto
-	* NEWS:  Updated with RDoc 4.0 information
+	* gc.c: Delete excess semicolon after RUBY_ALIAS_FUNCTION().
+	  Suppress "syntax error:  empty declaration" warnings by
+	  Oracle Solaris Studio 12.x on Solaris. [Bug #11821]
 
-Tue Nov 27 12:17:11 2012  Koichi Sasada  <ko1@atdot.net>
+	* hash.c: ditto, after NOINSERT_UPDATE_CALLBACK().
 
-	* thread.c (rb_thread_terminate_all): retry broadcast only when
-	  an exception is raised.
+Tue Dec 15 18:04:04 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Tue Nov 27 12:02:25 2012  Koichi Sasada  <ko1@atdot.net>
+	* NEWS: added news about EBCDIC encoding
 
-	* thread.c (rb_thread_terminate_all): broadcast terminate event
-	  not only an interrupt exception but any exceptions.
+Tue Dec 15 17:57:57 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Tue Nov 27 10:55:09 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* enc/ebcdic.h, enc/trans/ebcdic.trans,
+	  test/ruby/test_transcode.rb: Fixed encoding name
+	  to the correct one in the IANA registry (IBM037)
+	  and added an alias (ebcdic-cp-us)
 
-	* eval.c (ruby_cleanup): set thread status to THREAD_KILLED
-	  for preventing thr.raise.
-	* test/ruby/test_thread.rb (test_main_thread_status_at_exit):
-	  test for the above.
+Tue Dec 15 16:19:26 2015  Takashi Kokubun  <takashikkbn@gmail.com>
 
-Tue Nov 27 10:31:29 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* lib/erb.rb: Render erb with array buffer for function call optimization.
+	  [fix GH-1143]
+	* lib/rdoc/erb_partial.rb: ditto.
+	* template/verconf.h.tmpl: ditto.
 
-	* thread.c (rb_thread_terminate_all): suppress a warning.
+Tue Dec 15 13:50:05 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Nov 27 09:29:11 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* string.c (rb_str_oct): [DOC] mention radix indicators.
+	  [ruby-core:71310] [Bug #11648]
 
-	* thread.c (thread_join): raises ThreadError if target thread
-	  is a main thread.
-	* test/ruby/test_thread.rb (test_thread_join_main_thread):
-	  test for the above.
-	* NEWS: news for the above.
+Tue Dec 15 12:20:30 2015  Takashi Kokubun  <takashikkbn@gmail.com>
 
-Tue Nov 27 09:24:47 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* lib/erb.rb: Simplify regexp to optimize erb scanner.
+	  [fix GH-1144]
 
-	* thread.c (thread_join): raises ThreadError if target thread
-	  is a current thread.
-	* test/ruby/test_thread.rb (test_thread_join_current):
-	  test for the above.
-	* NEWS: news for the above.
+Tue Dec 15 11:56:24 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Nov 27 09:59:16 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/uri/common.rb: make code block for rdoc.
+	  [ci skip][fix GH-1152] Patch by @Tonkpils
 
-	* ext/extmk.rb (extmake): close mkmf.log for each libraries so that
-	  failure messages are not mixed.
+Tue Dec 15 11:55:08 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Nov 27 09:58:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/zlib/zlib.c: fix a typo.
+	  [ci skip][fix GH-1149] Patch by @crismali
 
-	* ext/digest/*/extconf.rb, ext/openssl/extconf.rb: get git rid of
-	  post-1.8 feature require_relative for cross compilation.
-	  [ruby-core:50160] [Bug #7439]
+Tue Dec 15 09:14:14 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Tue Nov 27 09:17:59 2012  Koichi Sasada  <ko1@atdot.net>
+	* tool/transcode_tablegen.rb: detailed documentation
+	  for transcode_tblgen function [ci skip]
 
-	* NEWS: add TracePoint.
+Mon Dec 14 22:11:11 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Tue Nov 27 08:16:03 2012  Koichi Sasada  <ko1@atdot.net>
+	* enc/ebcdic.h: new dummy encoding EBCDIC-US
+	* enc/trans/ebcdic.trans: transcodings between EBCDIC-US
+	  and iso-8859-1 [with code from Andrea Ribuoli]
+	* test/ruby/test_transcode.rb: tests for above
+	* tool/transcode_tablegen.rb: additional argument for
+	  method transcode_tblgen
 
-	* vm_trace.c: rename TracePoint#file and TracePoint#line
-	  to TracePoint#path and TracePoint#lineno respectively.
-	  They are consistent to RubyVM::Backtrace::Location.
+Mon Dec 14 17:04:14 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* include/ruby/debug.h: ditto.
+	* ext/socket/lib/socket.rb: use safe navigation operator.
+	  [fix GH-1142] Patch by @mlarraz
+	* lib/drb/extservm.rb: ditto.
+	* lib/net/http.rb: ditto.
+	* lib/net/http/response.rb: ditto.
+	* lib/scanf.rb: ditto.
+	* lib/uri/generic.rb: ditto.
 
-	* vm_core.h: ditto.
+Mon Dec 14 17:03:05 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
+	* bootstraptest/runner.rb: use safe navigation operator.
+	  [fix GH-1142] Patch by @mlarraz
+	* test/openssl/test_pair.rb: ditto.
+	* test/ruby/test_econv.rb: ditto.
 	* test/ruby/test_settracefunc.rb: ditto.
+	* test/thread/test_queue.rb: ditto.
 
-Tue Nov 27 08:04:26 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (rb_thread_terminate_all): broadcast eTerminateSignal
-	  again when Ctrl-C was pressed. [Feature #1952] [ruby-dev:39107]
-
-Tue Nov 27 07:58:03 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: add members to rb_trace_arg_t:
-	  * `klass_solved' represents klass and id is checked.
-	  * `line' represents line calculated from cfp.
-	  * `file' represents line calculated from cfp.
-
-	* vm_trace.c: fix to use above data structures.
-	  No need to calculate klass and id, line and file
-	  pairs for each trace points.
-
-Tue Nov 27 07:47:09 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (rb_thread_terminate_all): add RUBY_VM_CHECK_INTS_BLOCKING().
-	  Otherwise the loop in this function behave as busy loop because
-	  native_sleep() return immediately when RUBY_VM_INTERRUPTED() is true.
-
-Tue Nov 27 04:12:49 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb (extmake): git rid of post-1.8 features for cross
-	  compilation.  [ruby-core:50160] [Bug #7439]
-
-Tue Nov 27 00:13:41 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (rb_mutex_trylock, rb_mutex_unlock, mutex_sleep):
-	  raises ThreadError if called from trap handler as Thread#join.
-	* NEWS: news for the above.
-
-Mon Nov 26 23:55:33 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* NEWS: update for Thread#join incompatible change.
-
-Mon Nov 26 22:44:24 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (rb_thread_terminate_all): use native_sleep() instead
-	  of rb_thread_schedule(). Otherwise, it consume 100% cpu meaninglessly.
-	  [Bug #5368] [ruby-dev:44546]
-	* thread.c (thread_start_func_2): last sub-thread wakes up main thread.
-
-Mon Nov 26 21:16:04 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* vm_core.h (RUBY_VM_SET_TIMER_INTERRUPT, RUBY_VM_SET_INTERRUPT)
-	(RUBY_VM_SET_FINALIZER_INTERRUPT, RUBY_VM_SET_TRAP_INTERRUPT)
-	(RUBY_VM_INTERRUPTED): use enum symbol instead of immediate value.
-	* thread.c (thread_join_m, rb_threadptr_execute_interrupts): ditto.
-	* signal.c (signal_exec): ditto.
-
-Mon Nov 26 20:23:20 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (thread_join_m): use th->interrupt_mask instead of
-	  th->in_trap.
-
-	* vm_core.h (struct rb_thread_struct): remove in_trap member.
-	* signal.c (signal_exec): ditto.
-	* thread.c (thread_create_core): ditto.
-	* thread.c (Init_Thread): ditto.
-
-Mon Nov 26 20:23:49 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/ruby/test_argf.rb (TestArgf#test_chars): since marshal data is
-	  binary, shouldn't pass via text mode.  use base64 encoded data.
-
-Mon Nov 26 19:45:18 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* ruby_atomic.h (ATOMIC_CAS): new macro for compare-and-exchange.
-
-	* vm_core.h (struct rb_thread_struct): add interrupt_mask member.
-	* thread.c (thread_create_core, Init_Thread): initialize
-	  th->thread_mask.
-
-	* vm_core.h (RUBY_VM_INTERRUPTED_ANY): new macro for avoiding
-	  bare th->interrupt_flag.
-	* vm_core.h (RUBY_VM_INTERRUPTED, RUBY_VM_INTERRUPTED): check
-	  th->interrupt_mask.
-	* thread.c (set_unblock_function, rb_thread_schedule): replace
-	  th->interrupt_flag with RUBY_VM_INTERRUPTED_ANY()
-
-	* signal.c (signal_exec): set up thread->interrupt_mask for
-	  preventing recursive trap handler.
-	* vm_core.h (RUBY_VM_CHECK_INTS, RUBY_VM_CHECK_INTS_BLOCKING): ditto.
-
-	* thread.c (rb_threadptr_execute_interrupts):
-	  don't process interrupt if it is masked.
-	  [Bug #6009] [ruby-core:42524]
-
-Mon Nov 26 19:43:42 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.c (make_compile_option_value): add trace_instruction option.
-	  a patch by davidbalbert (David Albert).
-	  [Bug #6786]
-
-Mon Nov 26 19:10:53 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* bootstraptest/test_thread.rb: try to `join' each 100
-	  threads.
-	  This benchmark seems consuming long time on travis-ci
-	  several times (and make `failure').
-
-Mon Nov 26 18:22:56 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* common.mk: specify label `built-ruby'.
-
-	* benchmark/driver.rb: quote path.
-
-Mon Nov 26 18:26:28 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* signal.c (signal_exec): add volatile to make sure setjmp safe.
-
-Mon Nov 26 18:19:47 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* signal.c (signal_exec): suppress "warning: variable 'signum'
-	  might be clobbered by 'longjmp' or 'vfork'" warning.
-
-Mon Nov 26 18:15:47 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/driver.rb: accept multiple `-e'.
-	  You don't need to use `;' separation character.
-	  [ruby-core:50139] [ruby-trunk - Bug #7380]
-
-Mon Nov 26 17:10:04 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* string.c (rb_str_enumerate_chars, rb_str_enumerate_codepoints)
-	(rb_str_enumerate_lines): suppress "may be used uninitialized in
-	  this function" warning.
-
-Mon Nov 26 17:00:12 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* vm_core.h (rb_thread_struct): added 'in_trap' member for marking
-	  running trap handler.
-	* signal.c (signal_exec): turn on in_trap when running trap.
-	* thread.c (Init_Thread, thread_create_core): initialize in_trap
-	  when creating new threads.
-	* thread.c (thread_join_m): raise ThreadError when running trap
-	  handler.Bug [#6416][ruby-core:44956]
-	* test/ruby/test_thread.rb (test_thread_join_in_trap): new test
-	  for the above.
-
-Mon Nov 26 16:36:13 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* io.c (argf_each_codepoint): add missing ARGF#codepoints [Bug #7438]
-
-Mon Nov 26 15:50:29 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* bignum.c (bigdivrem): restart calculation when bigdivrem1 was
-	  interrupted by signal. Otherwise, ruby script may see a garbage
-	  value.
-
-Mon Nov 26 15:33:02 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* bignum.c (big_div_struct): added volatile to 'stop' member.
-	  Otherwise, "if (bds->stop)" check in bigdivrem1 don't read
-	  memory and ignore interrupt.
-	* bignum.c (bigdivrem, rb_big_stop): ditto.
-
-Mon Nov 26 12:11:09 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/Makefile.sub (DLNOBJ): missing in r37821.
-
-Mon Nov 26 10:50:19 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* test/ruby/test_process.rb (test_setsid): added a few wait for
-	  preventing that Process.getsid(io.pid) makes Errno::ESRCH.
-
-Sun Nov 25 22:34:00 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* array.c (ary_resize_smaller): new function to resize array.
-
-	* array.c (rb_ary_delete): refactoring to extract a function.
-
-	* array.c (rb_ary_delete_same): refactoring.
-	  It renames function, reduces duplicated code and removes unused
-	  code.
-
-	* gc.c (wmap_final_func): follow the above change.
-
-	* internal.h (rb_ary_delete_same): ditto.
-
-Sun Nov 25 22:27:33 2012  Benoit Daloze  <eregontp@gmail.com>
-
-	* array.c: fixes for the updated documentation in r35858:
-	  Typos and #take/#drop accept to take/drop 0 elements.
-
-Sun Nov 25 19:43:29 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* NEWS: add a news about iconv.
-
-Sun Nov 25 03:49:23 2012  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/set.rb, test/test_set.rb: Move tests embedded in lib/set.rb
-	  to test/test_set.rb.
-
-Sun Nov 25 03:44:50 2012  Akinori MUSHA  <knu@iDaemons.org>
-
-	* string.c (rb_str_each_line, rb_str_lines): String#lines now
-	  returns an array instead of an enumerator.  Passing a block is
-	  deprecated but still supported for backwards compatibility.
-	  Based on the patch by yhara. [Feature #6670]
-
-	* string.c (rb_str_each_char, rb_str_chars): Ditto for
-	  String#chars.
-
-	* string.c (rb_str_each_codepoint, rb_str_codepoints): Ditto for
-	  String#codepoints.
-
-	* string.c (rb_str_each_byte, rb_str_bytes): Ditto for
-	  String#bytes.
-
-	* NEWS: Add notes for the above changes.
-
-Sun Nov 25 02:07:37 2012  Akinori MUSHA  <knu@iDaemons.org>
-
-	* test/ruby/envutil.rb (Test::Unit::Assertions#assert_warning)
-	  (Test::Unit::Assertions#assert_warn), test/ruby/envutil.rb,
-	  test/ruby/test_enumerator.rb, test/ruby/test_io_m17n.rb,
-	  test/ruby/test_regexp.rb, test/ruby/test_syntax.rb:
-	  assert_warn() and assert_warning() are reversed.
-
-Sat Nov 24 21:08:50 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* gc.c (wmap_final_func): rename variables to clarify the meaning.
-	  In wmap2obj the key is WeakRef and the value is referenced object.
-	  In obj2wmap the key is referenced object and the value is an array
-	  of WeakRef.
-
-	* gc.c (wmap_finalize): ditto.
-	  [ruby-core:49044] [Bug #7304]
-
-Sat Nov 24 21:01:55 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* array.c (rb_ary_delete_same_obj): new function for WeakRef.
-	  This deletes same objects as item argument in the array.
-
-	* internal.h (rb_ary_delete_same_obj): add a declaration.
-
-	* gc.c (wmap_final_func): remove WeakRef object reference from the
-	  array. rb_ary_delete() is not usable because it uses rb_equal() to
-	  compare object references.
-
-	* gc.c (wmap_finalize): remove recycled object references from weak
-	  map hash properly. How to get object reference from object id was
-	  wrong. st_delete() doesn't work properly if key and value arguments
-	  are same. The key of obj2wmap is referenced object and the value of
-	  obj2wmap is WeakRef array.
-
-	* gc.c (wmap_aset): obj2wmap should contain WeakRef array in the
-	  definition.
-
-	* test/test_weakref.rb
-	  (TestWeakRef#test_not_reference_different_object,
-	   TestWeakRef#test_weakref_finalize): add tests for above.
-	  [ruby-core:49044] [Bug #7304]
-
-Sat Nov 24 19:44:41 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/nkf/nkf-utf8/nkf.c (unicode_iconv_combine): returning flags are
-	  nkf_char.
-
-Sat Nov 24 19:29:18 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* test/ruby/test_rubyoptions.rb (test_usage, test_usage_long):
-	  reduced, renamed.
-
-Sat Nov 24 13:10:14 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_trace.c (rb_tracepoint_attr_raised_exception): should not check
-	  value before event checking.
-
-	* vm_trace.c (rb_tracepoint_attr_return_value): ditto.
-
-	* test/ruby/test_settracefunc.rb: add tests for TracePoint#return_value
-	  and TracePoint#raised_exception.
-
-Sat Nov 24 12:47:27 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* test/ruby/test_process.rb (TestProcess#test_setsid): "./ruby-trunk"
-	  doesn't work on all environments. EnvUtil.rubybin would be suitable.
-
-Sat Nov 24 12:28:04 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* array.c (rb_ary_aref): fix Segmentation fault at TestArray#test_aref
-	  on x64 mingw. Variable argument of rb_scan_args() should be a pointer
-	  (VALUE *), but 0 of variable argument seems not equal to null pointer
-	  on x64 mingw.
-
-Sat Nov 24 11:47:14 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* process.c (proc_getsid): adds new method for getting session id.
-	  Contributed from fumiyas (Fumiyasu SATOH). Thank you!
-	  [Feature #6757] [ruby-dev:45977]
-	* configure.in: adds getsid check.
-	* test/ruby/test_process.rb (TestProcess#test_setsid): new test
-	  for the above.
-	* NEWS: news for the above.
-
-Sat Nov 24 10:59:14 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (thread_create_core): don't use th->thread_id before
-	  initialized.
-
-Sat Nov 24 00:00:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (proc_options, process_options, ruby_process_options): take
-	  care of the case argc is 0, and check if argv has NULL.
-	  [ruby-core:49889] [Bug #7423]
-
-Sat Nov 24 00:00:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (--disable-dln): option to disable dynamic linking
-	  feature.  [ruby-core:37676] [Feature #4946]
-
-Fri Nov 23 23:44:41 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (MakeMakefile#pkg_config): strip all white spaces for
-	  mingw64+MSYS pkg-config which erroneously emits extra newlines.
-	  [ruby-core:47998] [Bug #7163]
-
-Fri Nov 23 17:31:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (usage): wrap description lines if options are too long.
-
-Fri Nov 23 11:13:46 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/ruby/test_rubyoptions.rb (TestRubyOptions#test_usage2): refine
-	  assertion.
-
-	* test/ruby/test_rubyoptions.rb (TestRubyOptions#test_usage2): now
-	  --help option is for modern terminals.
-
-Fri Nov 23 10:45:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* ext/socket/ipsocket.c (IPSocket#peeraddr): Fix example
-	  [ruby-core:46429] [Bug #6732]
-
-Fri Nov 23 02:40:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/cgi/core.rb: Documentation for CGI#header alias
-	  Based on a patch by Marcus Stollsteimer
-	  [ruby-core:49585] [Bug #7405]
-
-Thu Nov 22 23:48:10 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* gc.c (is_swept_object): extract from is_dead_object().
-
-	* gc.c (rb_gcdebug_print_obj_condition): add the function for debug.
-	  This function shows some conditions of given object (e.g.,
-	  marked, in heap, swept).
-
-	* gc.c (rb_gcdebug_sentinel): add the function for debug.
-	  This function allow check to inadvertently free up an object.
-
-Thu Nov 22 23:45:18 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* array.c (rb_ary_shared_with_p): fix cache validity check.
-	  If #pop or #shift has been called against $: or $", the array will
-	  be still shared with the snapshot. We check array length for cache
-	  validity.
-	  [ruby-core:49518] [Bug #7383]
-
-	* test/ruby/test_require.rb
-	  (TestRequire#test_require_with_array_pop,
-	   TestRequire#test_require_with_array_shift): add tests for above.
-
-Thu Nov 22 21:48:48 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* common.mk, win32/Makefile.sub (probes.dmyh): now be made in current
-	  (=build) directory if build from the repository.
-
-Thu Nov 22 21:34:51 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* test/ruby/test_rubyoptions.rb: added a test.
-
-Thu Nov 22 20:32:07 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* complex.c (string_to_c_strict, string_to_c): check NUL.
-	* rational.c (string_to_r_strict, string_to_r): ditto.
-
-Thu Nov 22 20:21:45 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* Makefile.in (.dmyh.h): removed $(VPATH). GNU make don't
-	  recognize suffix rule with VPATH.
-
-Thu Nov 22 18:11:27 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* common.mk, Makefile.in, win32/Makefile.sub (.dmyh.h): nmake merges
-	  explicit rules for same target, but not merges explicit rules and
-	  implicit rules -- always explicit rules win.  So, need to add an
-	  explicit rule for probes.h.  [Bug #7421] [ruby-core:49839]
-
-Thu Nov 22 18:01:28 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* Makefile.in (probes.o): add -C to ignore #include in probes.d.
-
-	* probes.d: include vm_opts.h instead of vm_core.h.
-
-	* vm_opts.h (VM_COLLECT_USAGE_DETAILS): move definition from vm_core.h.
-
-Thu Nov 22 17:45:17 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/nkf/nkf-utf8: Merge b0a6577a521d1bba5e19853f95d5c4b9be1072b5.
-	  Support JIS X 0213 and some bugfixes.
-
-Thu Nov 22 17:39:37 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* tool/gen_dummy_probes.rb: don't change #include, #if and #endif
-	  lines. [Bug #7370]
-
-Thu Nov 22 16:58:26 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* Makefile.in: run preprocessor when making probe.h
-	* probes.d: define probe insn and insn__operand only when
-	  VM_COLLECT_USAGE_DETAILS is 1. [Bug #7370]
-
-Thu Nov 22 16:20:49 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* vm.c: Don't define vm_collect_usage_operand() and
-	  static void vm_collect_usage_insn() when disabling
-	  VM_COLLECT_USAGE_DETAILS. (refix r37796)
-
-Thu Nov 22 15:26:02 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* vm_insnhelper.h: partly revert r37631 (DTrace support).
-	  "vm usage information is always collected, so uncomment the
-	  functions." causes performance impact. [Bug #7370]
-	  Off course this revert disables related probes.
-
-Thu Nov 22 14:14:36 2012  Akinori MUSHA  <knu@iDaemons.org>
-
-	* re.c (rb_memsearch_ss): Apply performance improvement to short
-	  byte array search for platforms without memmem(3).
-	  [Feature #6311] [ruby-dev:45530]
-
-Thu Nov 22 12:52:19 2012  Akinori MUSHA  <knu@iDaemons.org>
-
-	* test/ruby/test_string.rb (TestString#test_index): Add some
-	  corner cases to tests for String#index, which might fail if ruby
-	  directly used a buggy memmem(3) implementation.
-
-Thu Nov 22 08:06:42 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* test/ruby/test_gc.rb (test_profiler_clear): fix wrong method
-	  calls [Bug #7419] [ruby-core:49828].
-
-Thu Nov 22 02:22:33 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* NEWS: edited (order etc).
-
-Wed Nov 21 22:52:59 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/io/wait/wait.c (io_wait_readable): add alias wait_readable.
-
-	* ext/io/wait/wait.c (io_wait_writable): this is easier to use than
-	  IO.select for a single IO object and is immune to the
-	  limitations/inefficiency of select() on platforms where poll/ppoll
-	  is available.  patched by Eric Wong.  [Feature #4646]
-
-Wed Nov 21 22:27:52 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* gc.c (garbage_collect): remove a duplicative probe.
-
-Wed Nov 21 22:08:48 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* gc.c (gc_profile_clear): realloc profile records if its size is
-	  higher than the threshold, GC_PROFILE_RECORD_DEFAULT_SIZE * 2.
-
-Wed Nov 21 21:53:29 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* complex.c (nucomp_to_c): added.
-
-Wed Nov 21 21:35:38 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* include/ruby/util.h: removed extra semicolon in definition of
-	  macro.
-	* compile.c: ditto.
-	* cont.c: ditto.
-	* math.c: ditto.
-	* node.c: ditto.
-	* parse.y: ditto.
-
-Wed Nov 21 18:46:37 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* rational.c (read_digits): due to a bit tighter rb_cstr_to_inum().
-
-Wed Nov 21 16:13:37 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/bm_so_nsieve_bits.rb: add an encoding pragma because
-	  this benchmark using strings (literals) as binary sequence.
-	  Now, they are UTF-8 strings. [ruby-dev:46578]
-
-Wed Nov 21 00:57:43 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* file.c (Init_File): null device definition uses rb_define_const
-	  instead of rb_file_const.
-
-Wed Nov 21 00:28:18 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* test/ruby/test_m17n_comb.rb (test_str_crypt): Use RbConfig to get
-	  libc's directory. Patched by Vit Ondruch [ruby-core:49763] [Bug #7312]
-
-Tue Nov 20 23:28:26 2012  Masaki Matsushita  <glass.saga@gmail.com>
-
-	* marshal.c: add marshal readahead. marshalized Array, Hash and Struct
-	  have size at least number of its elements, marshal readahead will
-	  read the certain readable length and buffer when it needs more bytes.
-	  marshal readahead prevents many calls to IO#getbyte and IO#read,
-	  then it enables performance improvement.
-	  [ruby-dev:45637] [Feature #6440]
-
-Tue Nov 20 22:35:02 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* Makefile.in (.d.h): replace char * to const char * because somehow
-	  current dtrace removes const of function declaration in probes.d.
-
-Tue Nov 20 21:41:04 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* include/ruby/debug.h: introduced.
-	  Debugging/profiling features will be located.
-
-	* vm_trace.c: expose C-level TracePoint APIs.
-	  Note that they are experimental.
-
-	* vm_trace.c, include/ruby/debug.h: rename `rb_hook_flag_t'
-	  to `rb_event_hook_flag_t'.
-	  Macro names `RUBY_HOOK_FLAG_*' are also renamed to
-	  `RUBY_EVENT_HOOK_FLAG_*'.
-
-	* debug.h, vm_debug.h: rename debug.h to vm_debug.h.
-
-	* common.mk: ditto.
-
-	* debug.c, main.c, vm_core.h: ditto.
-
-Tue Nov 20 21:12:37 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in (RUBY_DTRACE_AVAILABLE): only check dtrace availability.
-
-	* configure.in (RUBY_DTRACE_POSTPROCESS): restore.
-
-Tue Nov 20 21:22:44 2012  Masaki Suketa <masaki.suketa@nifty.ne.jp>
-
-	* test/win32ole/test_win32ole_type.rb (test_implemented_ole_types):
-	  IShellDispatch6 bundled in Windows 8. Thanks to phasis68 (Heesob
-	  Park).  [ruby-core:49580][Bug #7403]
-
-Tue Nov 20 21:06:41 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* complex.c: some improvements.
-	* rational.c: ditto.
-
-Tue Nov 20 21:01:16 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (incs): BSD make cannot deal with non-prefixed dependency
-	  and prefixed target.
-
-Tue Nov 20 20:10:23 2012  Yusuke Endoh  <mame@tsg.ne.jp>
-
-	* array.c (rb_ary_bsearch): fix rdoc bug (O(n log n) -> O(log n)).
-	  Patch by Charlie Somerville.  [ruby-core:49661] [Bug #7409]
-
-	* range.c (range_bsearch): ditto.
-
-Tue Nov 20 19:02:44 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_trace.c: rename and add TracePoint APIs.
-	  (1) TracePoint.new(...){...} creates a new trace point
-	      but does not make it enable.
-	  (2) TracePoint.trace(...){...} creates a new trace point
-	      and enable it (same as old behavior).
-	  (3) TracePoint#enable make it enable (renamed from TracePoint#retrace).
-	      If block given, when enable only in block.
-	  (4) TracePoint#disable make it disable (renamed from TracePoint#untrace).
-	      If block given, when disable only in block.
-	  (5) TracePoint#enabled? returns this trace is enable or not.
-	  [Feature #6895]
-
-	* test/ruby/test_settracefunc.rb: add tests.
-
-Tue Nov 20 18:35:05 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_trace.c: add two methods:
-	  (1) TracePoint#return_value which returns return
-	      value on the :return and :c_return event.
-	  (2) TracePoint#raised_exception which returns raised exception
-	      value on the :raise event.
-	  Each methods raise RuntimeError if it is called at unsupported
-	  event.
-	  Please review and give us feedback until next preview
-	  release (Dec/2012) of Ruby 2.0.0.
-	  [Feature #6895]
-
-	* insns.def, vm.c, vm_eval.c, vm_insnhelper.c, eval.c, thread.c:
-	  ditto.
-
-	* vm_trace.c, vm_core.h: move definition of rb_trace_arg_t from
-	  vm_trace.c to vm_core.h.
-	  Caller fills rb_trace_arg_t and pass the pointer of this variable.
-
-	* test/ruby/test_settracefunc.rb: fix tests to test this change.
-
-Tue Nov 20 17:31:12 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in: fix dtrace didn't work on darwin.
-
-	* configure.in (RUBY_DTRACE_AVAILABLE): unify RUBY_DTRACE_POSTPROCESS
-	  and RUBY_DTRACE_BSD_BROKEN.
-
-Tue Nov 20 15:20:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* file.c (File.extname): Documentation for extname on dotfiles and
-	files ending with a dot. Also, added example for this.
-	[ruby-core:47852] [Bug #7112]
-
-Tue Nov 20 14:19:20 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* test/ruby/test_signal.rb (TestSignal#test_signame): fix windows
-	  test failure. Process.kill on windows can't send a signal to
-	  another process.
-
-Tue Nov 20 13:58:11 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* io.c (Init_IO): moved all rb_file_const() into file.c.
-	* file.c (Init_File): replace with rb_file_const() with
-	  rb_define_const() because RDoc don't care rb_file_const.
-	  [Bug #5530]
-
-Tue Nov 20 12:35:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* ruby.c (usage_msg): Fix typo [ruby-core:49205] [Bug #7327]
-
-Tue Nov 20 12:35:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* file.c (File::NULL): Document File::NULL constant
-	  [ruby-core:49384] [Bug #7365]
-
-Tue Nov 20 12:05:15 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_read): Windows 8 fixed one of a bug of console
-	  API.
-	  based on the patch by Heesob Park at [ruby-core:49479] [Bug #7379]
-
-Tue Nov 20 11:14:33 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in (--enable-dtrace): always call RUBY_DTRACE_BSD_BROKEN
-	  for portability.
-	  As the note, FreeBSD 8 has DTrace as the optional
-	  feature (it is enabled by the build option), but doesn't have USDT.
-	  FreeBSD 9 has USDT but they are still optional. FreeBSD 10 will
-	  enable them by default.
-	  The variable $rb_cv_prog_dtrace_g is "yes" only on FreeBSD 9 with
-	  optional DTrace or FreeBSD 10. If it is "no", you cannot know
-	  whether it doesn't need -G or DTrace is disabled. (by checking
-	  error code, you can know)
-
-Mon Nov 19 22:55:48 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* configure.in (--enable-dtrace): change help message
-
-Tue Nov 20 11:05:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/tracer.rb (Tracer.trace_func): printf to stdout
-	  Patch by Michal Fojtik [ruby-core:45219] [Bug #6490]
-
-Mon Nov 19 21:24:18 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* vm_dump.c: not to include probes.h because the code does not depend
-	  on it.
-	* common.mk (vm_dump.$(OBJEXT)): remove dependency on probes.h
-
-Tue Nov 20 10:14:22 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (rb_thread_s_check_interrupt): removed redundant
-	  GET_THREAD().
-
-Tue Nov 20 10:12:46 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (rb_threadptr_async_errinfo_active_p): added a small
-	  comment.
-
-Tue Nov 20 10:05:56 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (rb_thread_blocking_region_end): replaced GET_THREAD()
-	  with ruby_thread_from_native(). We don't have GVL here.
-
-Tue Nov 20 09:56:15 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread.c (rb_threadptr_execute_interrupts) removed.
-	* thread.c (rb_threadptr_execute_interrupts_common) renamed to
-	  rb_threadptr_execute_interrupts. I.e. unified
-	  rb_threadptr_execute_interrupts and rb_threadptr_execute_interrupts_common.
-	* thread.c (rb_thread_schedule, rb_thread_execute_interrupts) s/_common//.
-
-Tue Nov 20 09:48:34 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* signal.c (rb_get_next_signal): removed pointless signal
-	  disabling. pthread_sigmask() only changes current thread
-	  mask.
-
-Tue Nov 20 09:36:55 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* signal.c (install_sighandler): added comments why we need
-	  rb_disable_interrupt().
-
-Tue Nov 20 09:31:33 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* signal.c (rb_disable_interrupt, rb_enable_interrupt): removed
-	  USE_TRAP_MASK.
-	* signal.c (trap_arg, trap_ensure): removed.
-	* signal.c (trap, sig_trap): removed pointless signal disabling.
-	  We don't need it because we no longer run trap handler on signal
-	  handler context.
-
-Tue Nov 20 09:20:49 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* prelude.rb: Moved Mutex#synchronize to
-	* thread.c (rb_mutex_synchronize_m): here. [Bug #4266]
-
-Tue Nov 20 08:36:15 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* signal.c (sig_signame): implements Signal.signame method
-	[Feature #5613]
-	* test/ruby/test_signal.rb (test_signame): adds test for above
-	* NEWS: add an item about above
-
-Mon Nov 19 16:30:59 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* struct.c (rb_struct_each_pair): yield associated pairs so that
-	  an unsplat argument can get both, for consistency with Hash,
-	  OpenStruct, and etc.  [ruby-dev:46533] [Bug #7382]
-
-Mon Nov 19 16:17:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (LIBS): libelf is need on only FreeBSD.
-
-Mon Nov 19 16:08:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (RUBYLIB): purelib option in runruby.rb is deprecated
-	  since r28841, so set to an empty list to get rid of a bogus path in
-	  child processes, which caused an insecure operation exception in
-	  test/ruby/test_encoding.rb:test_unsafe.
-
-Mon Nov 19 15:40:50 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* .travis.yml (script): add OPTS=-v, requested by @_ko1.
-
-Mon Nov 19 15:09:07 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in: fix didn't enable_dtrace=yes on auto.
-
-	* configure.in: see enable_dtrace for adding libelf on FreeBSD.
-
-	* common.mk: VPATH is not needed.
-
-Mon Nov 19 14:55:51 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* thread.c: add `Thread#backtrace_locations' method.
-	  This method is similar to `caller_locations' method for
-	  specific method.
-	  And fix to accept `level' and `n' parameters for `Thread#backtrace'
-	  and `Thread#backtrace_locations'.
-	  `caller' (and `caller_locations') do not return `caller' method
-	  frame.
-	  However, `Thread#backtrace' (and `Thread#backtrace_locations')
-	  return `Thread#backtrace' method frame itself
-	  if `Thread.current.backtrace' was called.
-
-	* vm_backtrace.c: ditto.
-
-	* internal.h: ditto.
-
-	* test/ruby/test_backtrace.rb: add tests.
-
-Mon Nov 19 14:54:32 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* Makefile.in, common.mk (probes.h): moved to common.mk and changed to
-	  see $(srcdir).
-
-	* common.mk (probes.dmyh): now created it on $(srcdir) always.
-
-	* win32/Makefile.sub (.SUFFIXES): removed common suffix.
-
-Mon Nov 19 10:00:10 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* Makefile.in (.SUFFIX): bsdmake needs .SUFFIX is defined before use.
-
-	* common.mk: fix path of probes.dmyh.
-
-	* common.mk (vm_dump.o): depend probes.h.
-
-	* configure.in: FreeBSD's USDT requires libelf.
-
-Mon Nov 19 01:11:59 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* vm_core.h, probes_helper.h (RUBY_DTRACE_FUNC_ENTRY_HOOK,
-	  RUBY_DTRACE_FUNC_RETURN_HOOK): move from vm_core.h to new file
-	  probes_helper.h for narrowing dependency to probes.h.
-	* common.mk (VM_CORE_H_INCLUDES): remove dependency to probes.h.
-	* common.mk (vm.$(OBJEXT)): add dependency to probes_helper.h.
-	* vm.c, vm_insnhelper.c: include probes_helper.h.
-
-Sun Nov 18 16:33:00 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* configure.in, Makefile.in, common.mk: support DTrace on Solaris 10,
-	  based on r26235 by Yugui. On Solaris 10, low optimization level
-	  may also be needed, e.g. optflags="-xO1" or "-xO0" with Oracle
-	  SolarisStudio 12.3 cc.
-
-	* configure.in (--enable-dtrace): new option to enable/disable
-	  DTrace support. By default, trying to enable if dtrace command
-	  is found on the system. It is disabled when cross compiling.
-
-	* configure.in (RUBY_DTRACE_POSTPROCESS): new macro. checks whether
-	  the dtrace on the system needs postprocessing with "dtrace -G".
-	  The postprocessing is needed on Solaris 10 and other platforms.
-
-	* configure.in (RUBY_DTRACE_BSD_BROKEN): new macro. checks whether
-	  the dtrace supports USDT.
-
-	* configure.in (DTRACE): move after RUBY_DTRACE_POSTPROCESS.
-
-	* configure.in (LD): On Solaris, /usr/ccs/bin/ld is preferred.
-
-	* configure.in, Makefile.in, common.mk (DTRACE_OBJ): new macro for
-	  DTrace probe object generated by postprocessing with "dtrace -G".
-
-	* Makefile.in, common.mk (probes.$(OBJEXT)): DTrace probe object
-	  generated by the postprocessing. New file probes.stamp is for
-	  rebuilding related objects that may be modified by "dtrace -G".
-
-	* configure.in, Makefile.in, common.mk (DTRACE_GLOMMED_OBJ): new
-	  macro for DTrace static library hacks.
-
-	* configure.in, Makefile.in (LIBRUBY_A_OBJS): ditto.
-
-	* Makefile.in, common.mk (ruby-glommed.$(OBJEXT)): new target with
-	  rule for DTrace static library hacks.
-
-	* common.mk (DTRACE_DEPENDENT_OBJS): objects depended on probes.h.
-
-Sun Nov 18 09:31:47 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* complex.c (read_comp): mathn compliant.
-	* rational.c (read_num): ditto.
-
-Sun Nov 18 02:50:12 2012  Luis Lavena <luislavena@gmail.com>
-
-	* win32/file.c (replace_to_long_name): correct logic around wildcard
-	  characters detection and ensure wide-chars are used as pattern.
-	  [ruby-core:49451] [Bug #7374]
-
-Sun Nov 18 02:02:46 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* complex.c (read_comp): modified handling of polar form.
-
-Sun Nov 18 00:50:44 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* complex.c (read_comp): fixed handling of polar form.
-
-Sun Nov 18 00:14:46 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* complex.c (string_to_c_strict, string_to_c): rewrote without regexp.
-	* rational.c (string_to_r_strict, string_to_r): ditto.
-
-Sat Nov 17 23:53:05 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* complex.c (make_patterns): should not accept extra sign.
-
-Sat Nov 17 21:45:12  Luis Lavena  <luislavena@gmail.com>
-
-	* win32/file.c (replace_to_long_name): skip expansion for all wildcard
-	  characters.
-	  [ruby-core:49451] [Bug #7374]
-
-	* test/ruby/test_file_exhaustive.rb: add more assertions to test.
-
-Sat Nov 17 12:14:50 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/visitors/yaml_tree.rb: use literal YAML style
-	  when emitting multi-line strings. Thanks @atambo
-
-	* test/psych/test_yaml.rb: test for change.
-
-Sat Nov 17 12:03:41 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/scalar_scanner.rb: avoid raising exceptions when
-	  parsing Floats and Integers. Thanks riffraff [ruby-core:44426]
-	* test/psych/test_numeric.rb: associated test
-
-Sat Nov 17 11:34:31 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* st.c (st_update): pass the key in st_table so that we can free
-	  memory of the key in st_table when deleting.
-	  [ruby-core:49220] [Bug #7330]
-
-	* test/-ext-/st/test_update.rb
-	  (Bug::StTable#test_pass_objects_in_st_table): add a test.
-
-Sat Nov 17 11:26:36 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/core_ext.rb: move Kernel#y so that it can
-	  manually be required as 'psych/y'.
-
-	* ext/psych/lib/psych/y.rb: ditto
-
-Sat Nov 17 08:13:48 2012  Benoit Daloze  <eregontp@gmail.com>
-
-	* lib/abbrev.rb: fix r37113. Correct examples, fix style
-	  and show explicit dependency (require 'abbrev').
-
-Sat Nov 17 07:35:15 2012  Luis Lavena  <luislavena@gmail.com>
-
-	* win32/file.c (replace_to_long_name): skip automatic path expansion
-	  when wildcard character is used.  [ruby-core:49451] [Bug #7374]
-
-	* test/ruby/test_file_exhaustive.rb: add a test for above.
-
-Sat Nov 17 00:50:23 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* marshal.c (w_object): add flonum to arg->data to keep reference index
-	  consistency. [ruby-core:49323] [Bug #7348]
-
-	* test/ruby/test_marshal.rb: add a test for above.
-
-Sat Nov 17 00:40:25 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (incs): dist files need probes.dmyh.
-
-	* common.mk (probes.dmyh): depends on generator script.
-
-	* Makefile.in, common.mk, configure.in, win32/Makefile.sub (probes.h):
-	  select generating with dtrace or copying dummy file by suffix rules.
-
-Fri Nov 16 19:24:10 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* thread.c (rb_thread_call_without_gvl2): change the parameter of
-	  `func' from `int *skip_interrupt' to `VALUE *flags'.
-	  If (flags & RUBY_CALL_WO_GVL_FLAG_SKIP_CHECK_INTS) is not zero,
-	  then skip checking interrupt.
-	  [ruby-core:46547]
-
-	* include/ruby/thread.h: ditto.
-
-Fri Nov 16 18:59:05 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* Makefile.in (no-dtrace-probes.h): dmyprobes.h is in srcdir.
-
-	* common.mk (dmyprobes.h): ditto.
-
-Fri Nov 16 17:57:15 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* Makefile.in (probes.h): split build commands for dtrace-available
-	  and unavailable platforms.
-
-	* Makefile.in (incs): probes.h is a platform dependent file, so it
-	  cannot be a part of prereq target.  move it to all-incs.
-
-	* configure.in (DTRACE): move after AC_PROG_CC since cross_compiling
-	  is set in it.
-
-	* configure.in (DTRACE): ignore non-prefixed version if
-	  cross-compiling.
-
-	* Makefile.in, win32/Makefile.sub (probes.h): fix copying dmyprobes.h
-	  path when outplace-build.
-
-Fri Nov 16 15:27:36 2012  Masaki Matsushita  <glass.saga@gmail.com>
-
-	* lib/net/pop.rb (POP3.certs): fix typo in comment.
-	  patch from no6v (Nobuhiro IMAI) <nov@yo.rim.or.jp>.
-	  [ruby-dev:46519] [Bug #7355]
-
-Fri Nov 16 12:36:47 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* test/rake/helper.rb (Rake::TestCase#setup): revert r37669.
-	  @orig_PWD should be the original pwd.
-
-	* test/rake/test_*.rb: don't use @orig_PWD to load libraries.
-	  It should be specified with relative path from the file.
-
-Fri Nov 16 10:22:52 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* test/rake/helper.rb (Rake::TestCase#setup): @orig_PWD shouldn't be
-	  Dir.pwd when the build directory is different from source directory.
-
-Fri Nov 16 09:41:08 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/rake/version.rb:  workaround fix to build. see #7366
-	  [ruby-dev:46522]
-
-Fri Nov 16 07:23:18 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rake*:  Updated to rake 0.9.4
-	  http://rake.rubyforge.org/doc/release_notes/rake-0_9_4_rdoc.html for
-	  a list of changes in 0.9.4.
-
-	* test/rake*:  ditto
-
-	* NEWS:  ditto
-
-Fri Nov 16 06:58:52 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rake*:  Updated to rake 0.9.3.  See
-	  http://rake.rubyforge.org/doc/release_notes/rake-0_9_3_rdoc.html for
-	  a list of changes in 0.9.3.
-
-	* test/rake*:  ditto
-
-	* bin/rake:  ditto
-
-	* NEWS:  ditto
-
-Thu Nov 15 22:39:32 2012  Yusuke Endoh  <mame@tsg.ne.jp>
-
-	* range.c (range_bsearch): fix some bugs: a documentation bug, a wrong
-	  condition, missed break in switch/case, and workaround for GCC
-	  optimization. See [ruby-core:49364] in detail.  A great patch from
-	  Heesob Park. [Bug #7352] [Feature #4766]
-
-	* array.c (rb_ary_bsearch): fix similar bug (missed break).
-
-	* test/ruby/test_range.rb: add two test cases for above.
-
-Thu Nov 15 22:41:57 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_exec.h (GENTRY): GENTRY should be pointer size.
-	  A patch by yoshidam (Yoshida Masato) [Bug #7332].
-
-Thu Nov 15 13:20:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* man/erb.1: Fix grammar and copyright dates
-	* man/goruby.1: ditto
-	* man/irb.1: ditto
-	* man/rake.1: ditto
-	* man/ri.1: ditto
-	* man/ruby.1: ditto
-	  Patch by Arthur Gunn
-	  [Fixes Github #210]
-
-Thu Nov 15 11:35:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* man/ruby.1: Grammar edits for man page
-	  Based on a patch by Michael Endsley [Fixes Github #183]
-
-Thu Nov 15 00:47:20 2012  Yusuke Endoh  <mame@tsg.ne.jp>
-
-	* array.c (rb_ary_bsearch): add Array#bsearch for binary search.
-	  [ruby-core:36390] [Feature #4766]
-
-	* test/ruby/test_array.rb: add a test for above.
-
-	* range.c (range_bsearch): add Range#bsearch for binary search.
-	  [ruby-core:36390] [Feature #4766]
-
-	* test/ruby/test_range.rb: add a test for above
-
-	* NEWS: added the two new methods.
-
-Wed Nov 14 13:25:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/fileutils.rb (chmod): Add "X" to modes, convert format to table
-	  [ruby-core:48965] [Bug #7288]
-
-Wed Nov 14 11:51:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/csv.rb (init_comments): Document private method #init_comments.
-	  Based on a patch from Vincent Batts [ruby-core:49172] [Bug #7319]
-
-Wed Nov 14 00:54:00 2012  Kenta Murata  <mrkn@mrkn.jp>
-
-	* Makefile.in (probes.h): create from probes.d
-
-Tue Nov 13 18:44:01 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_call_cfunc_with_frame): don't use ci after
-	  EXEC_EVENT_HOOK because ci can be overridden.
-
-	* vm_eval.c: ditto.
-
-	* method.h: change invoker's parameters types.
-
-	* vm_method.c (call_cfunc_invoker_func): ditto.
-
-Tue Nov 13 18:01:54 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (rb_mod_using): raise an ArgumentError if cyclic using is
-	  detected.  based on the patch by Charlie Somerville.
-	  [ruby-core:49092] Bug #7308
-
-	* test/ruby/test_refinement.rb: related test.
-
-Tue Nov 13 17:40:04 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* common.mk (vm_insnhelper.c): this target is useless and causes
-	  ruby always need rebuild.
-
-Tue Nov 13 17:35:49 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (insn_data_to_s_detail): remove debug lines.
-
-Tue Nov 13 17:28:47 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_caller_setup_args): save and restore
-	  ci->argc and ci->blockptr before and after method invocations
-	  because these method dispatches can override call_info.
-
-	* bootstraptest/test_method.rb: add tests for this fix.
-
-Tue Nov 13 16:38:02 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* common.mk (dmyprobes.h): always create for make dist.
-
-	* Makefile.in (probes.h): create or copy dmyprobes.h
-
-	* win32/Makefile.sub: only do copy dmyprobes.h.
-
-Tue Nov 13 15:37:21 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* Makefile.in (.SUFFIX): .SUFFIX is needed here for .d.h on bsd make.
-
-Tue Nov 13 15:34:35 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* common.mk Makefile.in win32/Makefile.sub (.d.h): it's not common.
-
-Tue Nov 13 12:27:11 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in: disable dtrace because it doesn't work on FreeBSD.
-
-	* common.mk (clean-local): rm probes.h.
-
-	* common.mk (parse.o): depend $(PROBES_H_INCLUDES).
-
-	* common.mk (.d.h): moved from Makefile.in and use BASERUBY.
-
-	* tool/gen_dummy_probes.rb: reimplemented with ruby because sed is not
-	  available on Windows Microsoft VC++ environment.
-
-Tue Nov 13 12:30:26 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/README.win32: added mention about build directory.  currently
-	  we can not build ruby in win32 directory.  this problem is reported
-	  by Masahiro Kitajima <katonbo@katontech.com>.
-
-Tue Nov 13 11:03:47 2012  Masaki Matsushita  <glass.saga@gmail.com>
-
-	* re.c (rb_memsearch_ss): performance improvement by using memmem(3) if
-	  possible. [ruby-dev:45530] [Feature #6311]
-
-	* configure.in: check existence of memmem(3) and that it is not broken.
-
-Tue Nov 13 06:50:02 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* probes.d: add DTrace probe declarations. [ruby-core:27448]
-
-	* array.c (empty_ary_alloc, ary_new): added array create DTrace probe.
-
-	* compile.c (rb_insns_name): allowing DTrace probes to access
-	  instruction sequence name.
-
-	* Makefile.in: translate probes.d file to appropriate header file.
-
-	* common.mk: declare dependencies on the DTrace header.
-
-	* configure.in: add a test for existence of DTrace.
-
-	* eval.c (setup_exception): add a probe for when an exception is
-	  raised.
-
-	* gc.c: Add DTrace probes for mark begin and end, and sweep begin and
-	  end.
-
-	* hash.c (empty_hash_alloc): Add a probe for hash allocation.
-
-	* insns.def: Add probes for function entry and return.
-
-	* internal.h: function declaration for compile.c change.
-
-	* load.c (rb_f_load): add probes for `load` entry and exit, require
-	  entry and exit, and wrapping search_required for load path search.
-
-	* object.c (rb_obj_alloc): added a probe for general object creation.
-
-	* parse.y (yycompile0): added a probe around parse and compile phase.
-
-	* string.c (empty_str_alloc, str_new): DTrace probes for string
-	  allocation.
-
-	* test/dtrace/*: tests for DTrace probes.
-
-	* vm.c (vm_invoke_proc): add probes for function return on exception
-	  raise, hash create, and instruction sequence execution.
-
-	* vm_core.h: add probe declarations for function entry and exit.
-
-	* vm_dump.c: add probes header file.
-
-	* vm_eval.c (vm_call0_cfunc, vm_call0_cfunc_with_frame): add probe on
-	  function entry and return.
-
-	* vm_exec.c: expose instruction number to instruction name function.
-
-	* vm_insnhelper.c: add function entry and exit probes for cfunc
-	  methods.
-
-	* vm_insnhelper.h: vm usage information is always collected, so
-	  uncomment the functions.
-
-Mon Nov 12 19:14:50 2012  Akinori MUSHA  <knu@iDaemons.org>
-
-	* configure.in (isinf, isnan): isinf() and isnan() are macros on
-	  DragonFly which cannot be found by AC_REPLACE_FUNCS().  This
-	  workaround enforces the fact that they exist on DragonFly.
-
-Mon Nov 12 15:59:38 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_core.h (rb_call_info_t::refinements), compile.c (new_callinfo),
-	  vm_insnhelper.c (vm_search_method): revert r37616 because it's too
-	  slow.  [ruby-dev:46477]
-
-	* test/ruby/test_refinement.rb (test_inline_method_cache): skip
-	  the test until the bug is fixed efficiently.
-
-Mon Nov 12 14:28:01 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/mkexports.rb (each_export): skip garbage generated by VS2012's
-	  nmake.
-	  reported and patched by Yoshida Masato at [Bug #7333] [ruby-dev:46484]
-
-Sun Nov 11 18:58:55 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* test/date/test_date_{parse,strptime}.rb: changed the format of
-	  some extra messages.
-
-Sun Nov 11 18:41:34 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_parse.c (date__parse): revised the tight parser
-	  (about handling of apostrophes).
-
-Sun Nov 11 15:39:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (rb_hash_s_create): just warn for wrong elements now.
-	  [ruby-dev:46440] [Bug #7300]
-
-	* hash.c (rb_hash_s_create): refine error messages.
-
-	* error.c (rb_builtin_class_name): share for above.
-
-Sun Nov 11 15:12:18 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (top_using): remove Kernel#using, and add main.using instead.
-
-	* test/ruby/test_refinement.rb: related test.
-
-Sun Nov 11 13:41:01 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (rb_using_refinement, rb_mod_using, f_using): clear method
-	  cache only when using is called explicitly.
-
-	* test/ruby/test_refinement.rb: related test.
-
-Sun Nov 11 12:56:34 2012  Masaki Matsushita  <glass.saga@gmail.com>
-
-	* lib/pstore.rb (PStore): fix not to replace ThreadError raised in
-	  #transaction block with PStore::Error.
-	  [ruby-core:39238] [Bug #5269]
-
-Sun Nov 11 11:36:19 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_core.h (rb_call_info_t::refinements), compile.c (new_callinfo):
-	  add a new field for inline method cache.
-
-	* vm_insnhelper.c (vm_search_method): check rb_call_info_t::refinements
-	  not to confuse inline method cache when module_eval is used with
-	  refinements.
-
-	* test/ruby/test_refinement.rb: related test.
-
-Sun Nov 11 08:45:45 2012  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* ruby.c: removed a comma before "before"
-
-Sat Nov 10 23:02:31 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* gc.c: move immutable fields from struct heaps_slot and struct
-	  sorted_heaps_slot into struct heaps_header.
-	  Based on a patch from Sokolov Yura [Feature #6199][ruby-core:43592]
-
-Sat Nov 10 19:28:16 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* complex.c: modified doc.
-	* rational.c: ditto.
-
-Sat Nov 10 18:20:10 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_parse.c: edited about era.
-
-Sat Nov 10 12:13:41 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* tool/rbinstall.rb: Don't install *.gemspec under lib/.
-	  [ruby-core:48966] [Bug #7289]
-	  Reported by Vit Ondruch. Thanks!!!
-
-Sat Nov 10 00:49:26 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* ruby_atomic.h: renamed from atomic.h to avoid header file name
-	  conflict on Solaris 10. [ruby-dev:46414] [Bug #7287]
-
-	* gc.c, signal.c, vm_core.h, common.mk: reflect the rename from
-	  atomic.h to ruby_atomic.h.
-
-Sat Nov 10 00:46:57 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* atomic.h: Revert r37491 which is a temporary workaround.
-
-Sat Nov 10 00:33:31 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* siphash.h: check configure macros before include newer headers.
-
-Fri Nov  9 23:33:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/erb.rb (ERB#run, ERB#result): eval under isolated bindings for
-	  safe concurrent use.  [ruby-core:47638] [Bug #7046]
-
-Fri Nov  9 23:05:06 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* random.c (BYTE_ORDER): define using configured WORDS_BIGENDIAN.
-
-	* siphash.c (sip_init_state): use union to suppress warnings by gcc
-	  4.7.
-
-Fri Nov  9 19:40:03 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* array.c (rb_ary_splice): fix r37583 doesn't consider the case when
-	  beg > array length.
-
-Fri Nov  9 16:11:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* random.c (rb_memhash): use siphash.
-
-Fri Nov  9 16:08:46 2012  Sokolov Yura funny-falcon  <funny.falcon@gmail.com>
-
-	* array.c: speedup Array#unshift by using space in shared array.
-	  [Feature #6638]
-	  - when array owns its shared array (ARY_SHARED_NUM == 1), and there
-	    is enough space then try unshift values directly into shared
-	    array.
-	  - when resulting array is big (~>64 items) then make it shared with
-	    enough room for future #unshifts, and then insert into shared
-	    array.
-
-	* array.c (rb_ary_splice): use shared array in rb_ary_slice.
-	  [Feature #6638]
-	  - use ary_ensure_room_for_push when rb_ary_slice used to add at the
-	    end of array, cause rb_ary_concat use rb_ary_slice.
-
-	* array.c (ary_ensure_room_for_push): make array really suitable for
-	  queue.  [Feature #6638]
-	  when array is shared (which happens after Array#shift), and
-	  ARY_SHARED_NUM == 1 (which is very often when array used as queue),
-	  then make rb_ary_push push directly into shared array.
-
-	* array.c (rb_ary_modify): steal shared array's container when
-	  ARY_SHARED_NUM == 1.  [Feature #6638]
-	  - Do not allocate new memory in rb_ary_modify when ARY_SHARED_NUM == 1
-	    and length almost same.
-	  - Store ARY_CAPA instead of RARRAY_LEN in ary_make_shared, to make
-	    it useful.
-	  - Fix rb_ary_sort_bang accordantly.
-
-Fri Nov  9 16:00:00 2012  Zachary Scott  <zzak@zacharyscott.net>
-
-	* ext/bigdecimal/bigdecimal.c: Documentation for BigDecimal
-	  Based on a patch from Vincent Batts [ruby-core:49047] [Bug #7305]
-
-Fri Nov  9 15:25:42 2012  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/shellwords.rb (Shellwords#shellescape): Add back my original
-	  real world example with some enhancement.
-
-	* lib/shellwords.rb (Shellwords#shelljoin): Undo part of the
-	  previous rdoc change.  This new example using a string-only
-	  array was not in line with the description.
-
-Fri Nov  9 12:58:13 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* string.c (rb_str_crypt): crypt(3) may return NULL.
-	  Latest glibc (2.16?) crypt(3) actually returns NULL. [Bug #7312]
-
-Fri Nov  9 12:07:06 2012  Akinori MUSHA  <knu@iDaemons.org>
-
-	* include/ruby/ruby.h (alloca), eval_intern.h (alloca), gc.c
-	  (alloca): Make alloca() globally available by moving the
-	  ultimate ifdef's to ruby/ruby.h.  Gcc hides its builtin alloca()
-	  when compiling with -ansi, and linking thus fails on platforms
-	  that lack their own alloca() implementation in libc, which
-	  include OpenBSD and some ports of NetBSD.  We use alloca()
-	  everywhere including from within third party C extensions, so
-	  alloca() must be made globally available. [Bug #7307]
-
-	* addr2line.c (alloca): Replace the alloca() part with the
-	  ultimate ifdef's. [Bug #7307]
-
-Fri Nov  9 09:30:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* io.c (IO#new):
-	  Fix indentation from r37444
-	  [ruby-core:48052] [Bug #7179]
-
-Fri Nov  9 07:36:00 2012  Kenta Murata  <mrkn@mrkn.jp>
-
-	* bignum.c (bigmul0): enable big_mul_toom3.
-	  [ruby-core:48552] [Bug #7242]
-
-	* bignum.c (bigmul1_toom3): fix incorrect calculation.
-	  the patch is made by Heesob Park.
-	  [ruby-core:48552] [Bug #7242]
-
-Fri Nov  9 05:33:00 2012  Kenta Murata  <mrkn@mrkn.jp>
-
-	* bignum.c (bigmul0): disable big_mul_toom3 temporarily.
-	  [ruby-core:48552] [Bug #7242]
-
-	* test/ruby/test_bignum.rb (test_mul_large_numbers):
-	  add a test for bigmul1_toom3 suggested in [Bug #7242].
-
-Thu Nov  8 21:57:59 2012  Masaki Matsushita  <glass.saga@gmail.com>
-
-	* re.c (rb_memsearch): performance improvement by using memchr().
-	  [ruby-dev:45397] [Feature #6173]
-
-Thu Nov  8 19:02:50 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/net/protocol.rb (Net::InternetMessageIO#each_crlf_line):
-	  treat \r as newline as mame pointed. [ruby-dev:46425] [Bug #7278]
-
-Thu Nov  8 11:32:11 2012  Akinori MUSHA  <knu@iDaemons.org>
-
-	* configure.in (--with-opt-dir): Avoid nesting of double quotes
-	  inside backquotes, since some traditional shells like PD KSH
-	  (which OpenBSD's /bin/sh bases on) fail to parse them.
-
-Thu Nov  8 09:34:00 2012  Kenta Murata  <mrkn@cookpad.com>
-
-	* numeric.c: Add a caution that the results of the comparing
-	  operations of two NaNs are undefined.
-	  [#1720] [ruby-dev:38725] [ruby-core:36966]
-
-Thu Nov  8 04:45:21 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* include/ruby/intern.h: Restore rb_enumeratorize as it was before
-	  r37497 and introduce rb_enumeratorize_with_size instead. [#7302]
-
-	* enumerator.c: ditto.
-
-Wed Nov  7 15:22:37 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* numeric.c (ruby_float_step): fix r37514: it yielded with NaN
-	  if the unit is infinity.
-
-Wed Nov  7 15:46:12 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
-
-	* lib/webrick.rb: fix typo. reported by Rohit Arondekar.
-	  https://github.com/ruby/ruby/pull/211
-
-Wed Nov  7 15:34:12 2012  Takeyuki FUJIOKA  <xibbar@ruby-lang.org>
+Mon Dec 14 14:33:35 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* lib/cgi/core.rb: alias CGI#http_header to CGI#header.
+	* lib/xmlrpc.rb: added documentation for parser details.
+	  [ci skip][fix GH-1124] Patch by @jrafanie
 
-Wed Nov  7 12:49:39 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (rb_mod_refine): set RMODULE_IS_REFINEMENT to a created
-	  refinement module, and don't override method_added.
-
-	* vm_method.c (rb_method_entry_make): check redefinition of
-	  optimized methods when a method is added to a refinement module.
-	  [ruby-core:48970] [Bug #7290]
-
-	* test/ruby/test_refinement.rb: related test.
-
-Wed Nov  7 11:48:14 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* misc/ruby-additional.el (ruby-mode-set-encoding): now encoding needs
-	  to be set always explicitly actually.  [Feature #6679]
-
-Wed Nov  7 09:15:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (rb_mod_const_get): avoid inadvertent symbol creation.
-
-Wed Nov  7 07:52:50 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* enum.c (rb_enum_cycle_size): prefix with rb.
-
-Wed Nov  7 04:32:15 2012  Luis Lavena  <luislavena@gmail.com>
-
-	* test/ruby/test_file_exhaustive.rb: Remove FIXME skip on Windows
-	  specific test because the test in question was already fixed.
-
-Wed Nov  7 03:45:12 2012  Luis Lavena  <luislavena@gmail.com>
-
-	* ext/zlib/extconf.rb: Recognize zlibwapi as linking library.
-	  Patch by Daniel Berger.
-
-	  [ruby-core:44979] [Feature #6421]
-
-Wed Nov  7 02:06:40 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* enumerator.c: New method #size; constructor accepts size.
-	                Have #to_enum accept a block
-	                Warn when using deprecated form of constructor
-	                Support #size for enumerators created from enumerators
-	                Support for lazy.{map|flat_map|...}.size.
-
-	* include/ruby/intern.h: RETURN_SIZED_ENUMERATOR for support of
-	  sized enumerators.
-
-	* array.c: Support for various enumerator.size.
-
-	* enum.c: ditto.
-
-	* hash.c: ditto.
+Mon Dec 14 11:46:52 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
+	* enum.c: fix a typo in documentation.
+	  [ci skip][fix GH-1140] Patch by @jutaz
+	* io.c: ditto.
+	* iseq.c: ditto.
 	* numeric.c: ditto.
-
-	* range.c: ditto.
-
+	* process.c: ditto.
 	* string.c: ditto.
+	* vm_trace.c: ditto.
 
-	* struct.c: ditto.
-
-	* vm_eval.c: ditto.
-
-Tue Nov  6 20:40:28 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* object.c (rb_mod_const_get): Fix constant missing exception class
-	  and message to maintain backwards compatibility. Constant search
-	  should start at Object when constant starts with '::'
-
-	* test/ruby/test_module.rb: test for fixes
-
-Tue Nov  6 16:50:00 2012  Masaki Matsushita  <glass.saga@gmail.com>
-
-	* lib/tempfile.rb (Tempfile#inspect): fix confusing #inspect.
-	  previous Tempfile#inspect says it is a File, but actually
-	  it is not a File.
-
-	    t = Tempfile.new("foo") #=> #<File:/tmp/foo20121106-31970-1ffbum0>
-	    t.is_a? File #=> false
-
-	  now Tempfile#inspect returns like:
-
-	    t = Tempfile.new("foo")
-	    #=> #<Tempfile:/tmp/foo20121106-31970-1ffbum0>
-
-	  [ruby-core:47544] [Bug #7027]
-
-Tue Nov  6 16:22:30 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* atomic.h: add #include <sys/atomic.h> for the workaround of
-	  header file name conflict of atomic.h with /usr/include/atomic.h
-	  on Solaris 10. [ruby-dev:46414] [Bug #7287]
-
-Tue Nov  6 14:38:00 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/win32ole/test_win32ole.rb: now source encoding is UTF-8, so
-	  binary strings in old scripts are dangerous.
-
-Tue Nov  6 14:25:09 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/net/protocol.rb (Net::InternetMessageIO#each_crlf_line):
-	  don't use /n in universal regexp. [ruby-dev:46394] [Bug #7278]
-
-Tue Nov  6 09:42:26 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* string.c (rb_str_b): Add String#b, returning a copied string
-	  whose encoding is ASCII-8BIT. [ruby-dev:45992] [Feature #6767]
-
-Tue Nov  6 09:37:57 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ruby.c (load_file_internal): set default source encoding as
-	  UTF-8 instead of US-ASCII. [ruby-core:46021] [Feature #6679]
-
-	* parse.y (parser_initialize): set default parser encoding as
-	  UTF-8 instead of US-ASCII.
-
-Tue Nov  6 05:48:06 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* test/ruby/test_require.rb
-	  (TestRequire#test_require_to_path_redefined_in_load_path,
-	   TestRequire#test_require_to_str_redefined_in_load_path):
-	  Suppress method redefined warning when test-all with RUBYOPT=-w.
-
-Thu Nov  8 00:24:14 2012  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/curses/view.rb: Do not fail if the file to view is shorter
-	  than the screen height.
-
-Mon Nov  5 11:40:00 2012  Mark Somerville  <mark@scottishclmibs.com>
-
-	* thread_pthread.c (rb_reserved_fd_p): fix typo in macro check
-	  that prevented the ifdef ever being true.
-	  [Bug #7281] [ruby-core:48940]
-
-Mon Nov  5 23:28:57 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* file.c (rb_get_path_check_to_string): extract from
-	  rb_get_path_check(). We change the spec not to call to_path of
-	  String object.
-
-	* file.c (rb_get_path_check_convert): extract from rb_get_path_check().
-
-	* file.c (rb_get_path_check): follow the above change.
-
-	* file.c (rb_file_expand_path_fast): remove check_expand_path_args().
-	  Instead we call it in load.c.
-
-	* file.c (rb_find_file_ext_safe): use rb_get_expanded_load_path() to
-	  reduce expand cost.
-
-	* file.c (rb_find_file_safe): ditto.
-
-	* internal.h (rb_get_expanded_load_path): add a declaration.
-
-	* internal.h (rb_get_path_check_to_string, rb_get_path_check_convert):
-	  add declarations.
-
-	* load.c (rb_construct_expanded_load_path): fix for compatibility.
-	  Same checks in rb_get_path_check() are added. We don't replace
-	  $LOAD_PATH and ensure that String object of $LOAD_PATH are frozen.
-	  We don't freeze non String object and expand it every time. We add
-	  arguments for expanding load path partially and checking if load path
-	  have relative paths or non String objects.
-
-	* load.c (load_path_getcwd): get current working directory for checking
-	  if it's changed when getting load path.
-
-	* load.c (rb_get_expanded_load_path): fix for rebuilding cache properly.
-	  We check if current working directory is changed and rebuild expanded
-	  load path cache. We expand paths which start with ~ (User HOME) and
-	  non String objects every time for compatibility. We make this
-	  accessible from other source files.
-
-	* load.c (rb_feature_provided): call rb_get_path() since we changed
-	  rb_file_expand_path_fast() not to call it.
-
-	* load.c (Init_load): initialize vm->load_path_check_cache.
-
-	* vm.c (rb_vm_mark): mark vm->load_path_check_cache for GC.
-
-	* vm_core.h (rb_vm_struct): add vm->load_path_check_cache to store data
-	  to check load path cache validity.
-
-	* test/ruby/test_require.rb (TestRequire): add tests for require
-	  compatibility related to cached expanded load path.
-	  [ruby-core:47970] [Bug #7158]
-
-Mon Nov  5 23:26:05 2012  Greg Price  <price@mit.edu>
-
-	* load.c (rb_get_expanded_load_path): cache the expanded load
-	  path.  This saves 4KB of allocation and some stats for every
-	  element of the load path (so nearly a MB in my Rails app)
-	  on every require.
-
-	* load.c (rb_construct_expanded_load_path): ensure that $LOAD_PATH
-	  entries are frozen strings.  The user must mutate $LOAD_PATH
-	  itself rather than its individual entries.
-
-	* vm_core.h (rb_vm_struct): add fields.
-
-	* vm.c (rb_vm_mark): mark new fields.
-
-	* ruby.c (process_options): modify $LOAD_PATH directly rather than
-	  its elements.
-	  Patch by Greg Price.
-	  [ruby-core:47970] [Bug #7158]
-
-Mon Nov  5 23:24:42 2012  Greg Price  <price@mit.edu>
-
-	* load.c (rb_feature_p, rb_provide_feature): index $LOADED_FEATURES
-	  so that require isn't so slow.
-
-	* load.c (rb_provide_feature, get_loaded_features_index): ensure
-	  that $LOADED_FEATURES entries are frozen strings.  The user
-	  must mutate $LOADED_FEATURES itself rather than its individual
-	  entries.
-
-	* load.c (reset_loaded_features_snapshot): add a new function to reset
-	  vm->loaded_features_snapshot.
-
-	* load.c (get_loaded_features_index_raw): add a new function to get
-	  the loaded-features index.
-
-	* load.c (features_index_add_single): add a new function to add to the
-	  loaded-features index a single feature.
-
-	* load.c (features_index_add): add a new function to add to the
-	  loaded-features index all the required entries for `feature`.
-
-	* vm_core.h (rb_vm_struct): add fields.
-
-	* vm.c (rb_vm_mark): mark new fields.
-
-	* include/ruby/intern.h (rb_hash_clear): declare function.
-
-	* hash.c (rb_hash_clear): make function non-static.
-	  Patch by Greg Price.
-	  [ruby-core:47970] [Bug #7158]
-
-Mon Nov  5 23:23:51 2012  Greg Price  <price@mit.edu>
-
-	* array.c (rb_ary_shared_with_p): new function.
-	  Expose whether two arrays are shared (read-only, C only).
-
-	* include/ruby/intern.h (rb_ary_shared_with_p): declare.
-	  Patch by Greg Price.
-	  [ruby-core:47970] [Bug #7158]
-
-Mon Nov  5 23:21:14 2012  Greg Price  <price@mit.edu>
-
-	* load.c (loaded_feature_path): clarify and briefly comment
-	  function.  These clarifications have no effect on the behavior
-	  of the function.
-
-	* load.c (rb_feature_p): explain the search loop.  Especially
-	  useful because the logic is complicated as described in the
-	  second paragraph.
-	  Patch by Greg Price.
-	  [ruby-core:47970] [Bug #7158]
-
-Mon Nov  5 22:45:03 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* ext/dl/win32/lib/Win32API.rb (Win32API#call): use 64bit pointer for x64
-	  Windows. This would fix
-	  TestSecureRandom#test_s_random_bytes_without_openssl error.
-	  [ruby-core:47451] [Bug #6990]
-
-Mon Nov  5 22:09:26 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* cygwin/GNUmakefile.in (uncommon.mk): link *.res.o.
-	  EXTOBJES is defined in uncommon.mk. *.res.o setting should be below
-	  uncommon.mk.
-	  [ruby-core:48858] [Bug #7277]
-
-Mon Nov  5 11:35:11 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread_pthread.c (native_thread_init, native_thread_destroy):
-	  removed HAVE_PTHREAD_CONDATTR_INIT check because this silly
-	  #ifdef makes use-uninitialized-var issue and (2) native_cond_initialize()
-	  already have a right platform and caller don't need any additional care.
-	  [Bug #6825]
-
-Mon Nov  5 10:57:59 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/cgi/core.rb: check if Tempfile is defined before use it.
-
-	* lib/cgi/core.rb: remove tempfiles only if tempfiles exist
-
-Mon Nov  5 12:17:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* lib/uri/http.rb (URI::HTTP.build): Fix example
-	  Patch by Carina C. Zona
-	  [Fixes #209 Github]
-
-Mon Nov  5 09:55:05 2012  Takeyuki FUJIOKA  <xibbar@ruby-lang.org>
-
-	* lib/cgi/core.rb: remove tempfile more early.
-
-Sun Nov  4 20:29:46 2012  Takeyuki FUJIOKA  <xibbar@ruby-lang.org>
-
-	* lib/cgi.rb, lib/cgi/*/rb: rename CGI#header to CGI#http_header,
-	  add and update HTML5 tag generator.  [Bug #7110]
-	  Patch provided by Marcus Stollsteimer, thank you !
-
-Sun Nov  4 11:47:39 2012  Masaki Matsushita  <glass.saga@gmail.com>
-
-	* lib/fileutils.rb (module FileUtils): repatch [ruby-core:39622]
-	  [Feature #5337]. improve performance of FileUtils.compare_stream.
-	  [ruby-core:47545] [Feature #7028]
-
-Sun Nov  4 11:27:54 2012  Masaki Matsushita  <glass.saga@gmail.com>
-
-	* array.c (recursive_equal): fix to return true when self and other
-	  are resized to same size and the current index become out of
-	  range.
-
-	* test/ruby/test_array.rb: add a test for the above.
-
-Sun Nov  4 10:19:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (file_s_fnmatch): match with expanding braces if FNM_EXTGLOB
-	  is set.  [ruby-core:40037] [Feature #5422]
-
-Sat Nov  3 23:38:15 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* complex.c: modified doc.
-	* rational.c: ditto.
-
-Sat Nov  3 22:38:55 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_core.c: modified doc.
-
-Sat Nov  3 18:35:55 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* vm.c (rb_vm_rewrite_ep_in_errinfo, vm_rewrite_ep_in_errinfo):
-	  merge code and remove `rb_vm_rewrite_ep_in_errinfo'.
-
-Sat Nov  3 18:15:24 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* vm.c, proc.c: avoid unnecessary `rb_vm_rewrite_ep_in_errinfo'
-	  calls.
-
-Sat Nov  3 17:53:43 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* bin/testrb: Use only Test::Unit::AutoRunner in test-unit gem
-	  compatible API to be available by both test/unit bundled in Ruby
-	  and test-unit gem.
-	* lib/test/unit.rb (Test::Unit::AutoRunner): Move codes from testrb.
-
-Sat Nov  3 14:56:21 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_parse.c (parse_eu): should capture apostrophe too.
-
-Sat Nov  3 14:46:15 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_parse.c (date__parse): revised the tight parser.
-
-Sat Nov  3 14:43:42 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rexml/xmldecl.rb (REXML::XMLDecl#content): Add missing \A
-	  and \z.
-
-Sat Nov  3 14:42:55 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rexml/output.rb (REXML::Output#initialize): Use normalized
-	  encoding name.
-
-Sat Nov  3 14:41:17 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rexml/output.rb (REXML::Output): Don't output BOM in middle
-	  of the output string.
-	* test/rexml/test_document.rb: Add a test for the above change.
-
-Sat Nov  3 14:09:55 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* NEWS: Add an item about REXML::Document#write.
-
-Sat Nov  3 13:46:49 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* test/rexml/test_document.rb: Fix tests that expect encoding name
-	  isn't normalized.
-
-Sat Nov  3 13:26:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* dir.c (Dir#glob):
-	  Documentation for pattern section, backslash subsection
-	  Patch by Eric Bouchut
-	  [ruby-core:48528] [Bug #7230]
-
-Sat Nov  3 13:26:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* io.c (IO#new):
-	  Documentation for IO#open modes and formatting
-	  [ruby-core:48052] [Bug #7179]
-
-Sat Nov  3 13:01:02 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* test/rexml/test_encoding.rb (EncodingTester#test_in_different_out):
-	  Fix a test that expects encoding in XML declaration is changed by
-	  Output's encoding. It is dropped feature.
-
-Sat Nov  3 12:49:45 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rexml/document.rb (REXML::Document#write): Document encoding
-	  option. Now different encoding between XML file's encoding and
-	  XML declaration's encoding is support.
-	  [Feature #4872] (work in progress)
-	* lib/rexml/xmldecl.rb (REXML::XMLDecl#write): Always use XMLDecl's
-	  encoding.
-	* test/rexml/test_document.rb: Update tests for the above change.
-
-Sat Nov  3 12:18:35 2012  Masaki Matsushita  <glass.saga@gmail.com>
-
-	* array.c (recursive_equal): fix not to make invalid pointers when
-	  self and other are resized to same size in #== of their elements.
-	  [ruby-dev:46373] [Feature #6177]
-
-Sat Nov  3 12:06:15 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* test/rexml/test_xml_declaration.rb (TestXmlDeclaration#test_*):
-	  Remove needless prefix from test names.
-
-Sat Nov  3 12:04:52 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* test/rexml/test_xml_declaration_parent_child.rb: Rename to ...
-	* test/rexml/test_xml_declaration.rb: ... this.
-
-Sat Nov  3 11:43:00 2012  Zachary Scott  <zachary@zacharyscott.net>
-
-	* hash.c (rb_hash_delete): Correct grammar
-	  Patch by Glenn Oppegard
-	  [Fixes #208 Github]
-
-Sat Nov  3 11:28:28 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* NEWS: add a news about GC::Profiler.raw_data.
-
-Sat Nov  3 11:01:32 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* NEWS: add a news about rb_newobj_of() and NEWOBJ_OF().
-
-Sat Nov  3 10:17:41 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* eval.c (f_current_dirname): add the new method for Kernel.
-	  This method almost same as File.dirname(__FILE__). One
-	  different behavior is it returns nil when __FILE__ returns nil.
-	  [Feature #3346]
-
-	* NEWS:  ditto
-
-	* test/ruby/test_method.rb: related test.
-
-Sat Nov  3 09:03:34 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* test/ruby/test_refinement.rb (test_new_method_by_send,
-	  test_new_method_by_method_object): add tests for Kernel#send and
-	  Kernel#method with refinements.
-
-	* test/ruby/test_refinement.rb (test_symbol_to_proc): add a test
-	  calling a proc created by Symbol#to_proc outside the scope where
-	  a refinement is closed over.
-
-Sat Nov  3 04:14:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm.c (rb_vm_rewrite_ep_in_errinfo): rewrite all catch points in
-	  errinfo, not only the topmost frame.  based on the patch by
-	  ktsj (Kazuki Tsujimoto) in [ruby-dev:45656]. [Bug #6460]
-
-Fri Nov  2 20:11:17 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (MakeMakefile#timestamp_file): remove @ which looks like
-	  configure variables.
-
-	* lib/mkmf.rb (MakeMakefile#timestamp_file): use .-. instead of !, a
-	  special character of NMAKE and BSD make.  [Bug #7265]
-
-Fri Nov  2 17:55:39 2012  Shota Fukumori  <sorah@tubusu.net>
-
-	* lib/test/unit.rb (_run_parallel): Delete status line before showing
-	  results. Patch by Hiroshi Shirosaki. [Bug #6897] [ruby-core:47250]
-
-	* lib/test/unit.rb (_run_parallel): Fix strange result when disabled retrying.
-	  Patch by Hiroshi Shirosaki. [Bug #6897] [ruby-core:47250]
-
-Fri Nov  2 17:52:12 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* object.c (rb_mod_to_s): Module#{to_s,inspect}, when invoked on
-	  a refinement, returns a string in the format #<refinement:C@M>,
-	  where C is a refined class and M is a module at which the refinement
-	  is defined.
-
-	* eval.c (rb_mod_refine): store information on a refinement for the
-	  above change.
-
-	* test/ruby/test_refinement.rb: related test.
-
-Fri Nov  2 16:57:52 2012  Shota Fukumori  <sorah@tubusu.net>
-
-	* vm_dump.c (rb_vm_bugreport): Because of many log directories,
-	  making directory lists readable.
-
-Fri Nov  2 16:44:00 2012  Kenta Murata  <mrkn@mrkn.jp>
-
-	* vm_dump.c (rb_vm_bugreport): add ~/Library/Logs/DiagnosticReports
-	  in the locations list of crash reports.
-
-Fri Nov  2 14:52:52 2012  Masaki Matsushita  <glass.saga@gmail.com>
-
-	* array.c (recursive_equal): performance improvement by avoiding
-	  overhead to call rb_ary_elt().
-	  [ruby-dev:45412] [Feature #6177]
-
-Fri Nov  2 14:47:53 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* string.c (sym_to_proc, sym_call): A Proc created by Symbol#to_proc
-	  should close over the current refinements.
-	  [ruby-dev:46345] [Bug #7261]
-
-	* vm_eval.c (rb_call0, rb_search_method_entry,
-	  rb_funcall_passing_block_with_refinements): add a new argument
-	  `refinements' for the above changes.
-
-	* test/ruby/test_refinement.rb: related test.
-
-Fri Nov  2 08:24:28 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* proc.c (top_define_method): new method, main.define_method.
-	  [ruby-core:45715] [Feature #6609]
-
-	* eval.c (top_include): fix a warning message, main is not a class or
-	  module.
-
-Fri Nov  2 04:41:33 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (MakeMakefile#timestamp_file): use ! instead of %, a GNU
-	  make special character.
-
-Fri Nov  2 04:40:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/ruby/test_process.rb (test_execopts_preserve_env_on_exec_failure):
-	  use never existing file in the current temporary directory.
-
-Fri Nov  2 04:23:20 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* tool/merger.rb: add feature to tag preview/rc.
-
-Fri Nov  2 03:23:37 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/mkmf.rb: fix for if config["libdir"] is nil.
-
-Thu Nov  1 23:06:01 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* tool/make-snapshot: fix wrong regexp for releasing preview.
-	  patched by mame.
-
-Thu Nov  1 22:27:11 2012  Koichi Sasada <ko1@atdot.net>
-
-	* NEWS: add a news about objspace,
-	  ObjectSpace.reachable_objects_from.
-
-Thu Nov  1 21:57:00 2012  Kenta Murata  <mrkn@mrkn.jp>
-
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_new),
-	  test/bigdecimal/test_bigdecimal.rb:
-	  Fix exception message of BigDecimal constructor with a Float.
-
-Thu Nov  1 21:52:20 2012  Kenta Murata  <mrkn@mrkn.jp>
-
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_add),
-	  test/bigdecimal/test_bigdecimal.rb:
-	  need to specify precision for converting Rational and Float.
-	  [ruby-core:48045] [Bug #7176]
-
-Thu Nov  1 21:42:20 2012  Yusuke Endoh  <mame@tsg.ne.jp>
-
-	* test/ruby/test_process.rb: Revert r37404.  My ubuntu box has
-	  actually the directory named "/nonexistent"...  Sorry.
-
-Thu Nov  1 21:28:28 2012  Yusuke Endoh  <mame@tsg.ne.jp>
-
-	* test/ruby/test_process.rb: Process.exec raised EACCES on Linux
-	  3.5.0-17-generic.  This is a temporal fix to rescue that exception.
-	  Needs kosaki's review.
-
-Thu Nov  1 21:19:56 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* iseq.c (set_relation): parent_iseq need to be set regardless iseq
-	  type.  fix r37397.
-
-Thu Nov  1 19:47:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread_pthread.c (RUBY_STACK_MIN): may not a compile time constant.
-	  fix r37079.  [ruby-dev:46322] [Bug #7247]
-
-Thu Nov  1 16:44:36 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* NEWS: add note for Module#refine, Module#refinements,
-	  Module#using, and Kernel#using.
-
-Thu Nov  1 14:41:47 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (rb_using_module): using should be used indirectly.
-	  [ruby-dev:46326] [Feature #7251]
-
-Wed Oct 31 18:17:38 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* gc.c (gc_profile_record): don't define unused variables when
-	  GC_PROFILE_MORE_DETAIL is 0.
-
-Wed Oct 31 18:10:53 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* gc.c (gc_prof_mark_timer_stop): count is not initialized.
-
-Wed Oct 31 09:28:24 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* thread.c (rb_thread_call_without_gvl2):  Note that ubf() may or may
-	  not be called with the GVL.  Hinted that rb_thread_call_with_gvl()
-	  can be used to access ruby functionality.
-
-Wed Oct 31 09:06:54 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* thread.c (rb_thread_call_without_gvl2):  Update documentation to
-	  natural English.
-	* thread.c (rb_thread_call_with_gvl):  ditto.
-
-Wed Oct 31 02:53:07 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/dl/lib/dl/struct.rb: fix strange require order. [ruby-dev:45702]
-
-	* ext/dl/lib/dl/value.rb: ditto
-
-	* test/dl/test_c_struct_entry.rb: remove strange require order from
-	  tests.
-
-	* test/dl/test_c_union_entity.rb: ditto
-
-Tue Oct 30 23:59:32 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (rb_mod_refine): fix the error message when no block is
-	  given.  [ruby-dev:46319] [Bug #7244]
-
-	* test/ruby/test_refinement.rb: related test.
-
-Tue Oct 30 19:27:48 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* process.c (redirect_dup2): set standard handles when new fd is stdio,
-	  because if there is no allocated console at the moment Windows does
-	  not automatically associate it for child process's standard handle.
-	  this is adhoc workaround.
-	  reported by Martin Thiede at [ruby-core:48542] [Bug #7239].
-
-	* io.c (rb_cloexec_dup2): ditto.
-
-Tue Oct 30 03:08:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/rbconfig/obsolete.rb (Config): re-introduce warnings for a
-	  lame-duck.  [ruby-core:46836] [Bug #6809]
-
-Tue Oct 30 02:20:10 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* thread.c: added Thread#thread_variable_(get|set),
-	  Thread#thread_variable?, and Thread#thread_variables for operating
-	  on variables that are local to threads. [ruby-core:47790]
-
-	* vm.c: ditto
-
-	* test/ruby/test_thread.rb: tests for thread variables.
-
-Mon Oct 29 18:22:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/stringio/stringio.c (strio_close): close separately per each
-	  instances, as well as IO.
-
-Mon Oct 29 10:22:00 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/handlers/recorder.rb: added a class for
-	  recording YAML parse and emit events.
-
-	* ext/psych/lib/psych/handler.rb: adding a list of events so that
-	  handler classes can more easily be meta-programmed.
-
-	* test/psych/handlers/test_recorder.rb: tests for the change.
-
-Mon Oct 29 05:48:52 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/ostruct.rb: Add [] and []=, base on a patch by Thomas Sawyer.
-	  Also accept {Open}Struct as argument to new.
-	  Add #eql?, #hash & #each_pair
-	  Protect new_ostruct_member
-
-Mon Oct 29 03:20:58 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/matrix.rb: Fix determinant_e [ruby-dev:46305] [Bug #7228]
-
-Sun Oct 28 23:52:25 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* test/rexml/test_document.rb: Add tests for parsing XML encoded
-	  by UTF-8 with BOM.
-
-Sun Oct 28 23:47:09 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rexml/source.rb: Move encoding detection code to base class.
-	* lib/rexml/encoding.rb: Remove needless encoding detection code.
-
-Sun Oct 28 21:40:13 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rexml/parsers/baseparser.rb: Fix a bug that UTF-8 is used
-	  for UTF-16XX encoded XML that doesn't have encoding="UTF-16" in
-	  XML declaration.
-	* test/rexml/test_document.rb: Add tests for the above change.
-
-Sun Oct 28 21:37:34 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* test/rexml/test_document.rb: Group tests that they parse
-	  UTF-16XX encoded XML that has encoding="UTF-16" in XML declaration.
-
-Sun Oct 28 21:25:11 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rexml/source.rb (REXML::IOSource#initialize): Reduce
-	  @line_break initialize code. It should be done only in #encoding=.
-	* lib/rexml/parsers/baseparser.rb: Don't set UTF-16 encoding to
-	  source by encoding="UTF-16" in XML declaration because UTF-16XX
-	  source encoding should be set in Source#initialize or
-	  IOSource#initialize. They should handle BOM. Parser should not
-	  consider about it.
-
-Sun Oct 28 21:18:37 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* test/rexml/test_document.rb: Add tests for parsing XML encoded
-	  by UTF-16 with BOM.
-
-Sun Oct 28 19:12:11 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_parse.c (iso8601_{ext,bas}_time): should not match
-	  empty string.
-
-Sun Oct 28 18:51:33 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_parse.c (date__parse): revised the tight parser.
-
-Sun Oct 28 15:41:50 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rexml/document.rb (REXML::Document#write): Add :encoding option
-	  to support custom XML encoding.
-	  [Feature #4872] (work in progress)
-	* test/rexml/test_document.rb: Add tests for the above change.
-
-Sun Oct 28 15:00:19 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rexml/document.rb (REXML::Document#write): Remove needless
-	  indent in document.
-
-Sun Oct 28 14:59:14 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rexml/document.rb (REXML::Document#write): Accept options
-	  Hash as argument.
-	* test/rexml/test_document.rb: Add tests for the above change.
-
-Sun Oct 28 14:09:44 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rexml/document.rb (REXML::Document#write): Fix wrong usage
-	  in document.
-
-Sun Oct 28 14:03:48 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rexml/document.rb (REXML::Document#write): Fix wrong method
-	  names in document.
-
-Sun Oct 28 10:12:15 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/visitors/yaml_tree.rb: `tree` should return the
-	  same thing on every call.
-
-	* test/psych/visitors/test_yaml_tree.rb: related test.
-
-Sun Oct 28 10:05:03 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/visitors/yaml_tree.rb: YAML Tree object should
-	  be able to take an emitter object as it's output.
-
-	* test/psych/visitors/test_yaml_tree.rb: related test.
-
-Sun Oct 28 08:23:16 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* bignum.c (bignew_1): Bignum instances are frozen.
-	  Feature #3222
-
-	* include/ruby/ruby.h: Fixnum instances are also frozen.
-
-	* class.c (singleton_class_of): check Bignum before
-	  singleton checking.
-
-	* test/ruby/test_bignum.rb: add a test.
-
-	* test/ruby/test_fixnum.rb: ditto.
-
-	* test/ruby/marshaltestlib.rb, test/ruby/test_eval.rb,
-	  test/ruby/test_object.rb: catch up above changes.
-
-Sun Oct 28 04:38:06 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c (vm_define_method): remove type and frozen checking.
-	  Checking is done in `rb_singleton_class()'.
-
-Sun Oct 28 00:49:06 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (assign_in_cond): warn for static content object assignments
-	  in conditional statements.  [ruby-dev:43083] [Feature #4299]
-
-Sat Oct 27 23:33:41 2012  Benoit Daloze  <eregontp@gmail.com>
-
-	* gc.c (gc_profile_result, gc_profile_report): use internal structures
-	  to avoid allocations and progressively print the output for #report.
-	  [ruby-core:47163] [Bug #6865]
-
-Sat Oct 27 11:01:10 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* numeric.c (rb_float_new_in_heap), include/ruby/ruby.h:
-	  make all Float objects frozen.
-	  [ruby-dev:46081] [ruby-trunk - Feature #6936]
-	  Most part of patch by NARUSE, Yui  <naruse@ruby-lang.org>.
-
-	* class.c (singleton_class_of): raise TypeError when
-	  trying to define a singleton method on Float objects.
-
-	* vm.c (vm_define_method): ditto.
-
-	* test/ruby/marshaltestlib.rb: catch up above changes.
-
-	* test/ruby/test_class.rb: ditto.
-
-	* test/test_pp.rb: ditto.
-
-Sat Oct 27 10:50:53 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* object.c (rb_mod_const_get): make sure the constant name is
-	  converted to a string before searching. [ruby-core:48405]
-
-Sat Oct 27 10:12:13 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* iseq.c (rb_iseq_compile_with_option): Instead of testing
-	  respond_to, just check if the argument is actually a file,
-	  because by calling user-defined gets something weired can
-	  happen.  Patch by Glass_saga. [ruby-dev:40202] [Bug #2861]
-
-	* parse.y (ripper_initialize): ditto.
-
-Sat Oct 27 10:07:57 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (enum lex_state_e): [EXPERIMENTAL] lex_state as bit field /
-	  IS_lex_state() macro.  based on the patch by Dave B in
-	  [ruby-core:23503].  [Feature #1493]
-
-Sat Oct 27 10:05:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/win32.h (fstat): use _fstati64() instead of fstati64()
-	  on mingw32.
-
-Sat Oct 27 06:28:33 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* object.c (rb_mod_const_get): const_get accepts qualified constant
-	  strings.  e.g. Object.const_get("Foo::Bar::Baz") [ruby-core:41404]
-
-	* test/ruby/test_module.rb: tests for new behavior
-
-Fri Oct 26 13:24:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (literal_concat_gen): merge fixed strings across
-	  concatenated literals, after an interpolation.
-
-Thu Oct 25 17:48:54 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (has_redirection): should use shell (cmd.exe) when
-	  the commandline contains '&'.
-	  reported by Roger Pack at [ruby-core:47912] [Bug #7143], and
-	  patched by Heesob Park at [ruby-core:47931].
-
-Thu Oct 25 15:00:08 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* include/ruby/ruby.h, class.c: remove (revert)
-	  `rb_add_method_cfunc_frameless()' API.
-	  This API is not mature to become an official API.
-	  For example, we can not use this API with
-	  `rb_define_private_method()'.
-
-	* method.h, vm_method.c (rb_add_method_cfunc_frameless): removed.
-
-Thu Oct 25 13:35:07 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* tool/mkconfig.rb: remove string literal concatenation.
-
-Wed Oct 24 18:49:16 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/objspace/objspace.c (type2sym, count_objects_size): use enum
-	  instead of size_t which may be larger than actual values.
-
-Wed Oct 24 17:41:24 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/driver.rb: add `-x' or `--exclude' option
-	  to specify exclude benchmark name pattern.
-	  You can specify "-x foo" if you want to exclude the benchmarks
-	  if the name of benchmark contains `foo'.
-
-Wed Oct 24 11:57:24 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* gc.c (gc_prepare_free_objects): rename to match the behavior of
-	  this function.
-
-Wed Oct 24 11:55:19 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* ext/objspace/objspace.c (reachable_object_from_i): change data
-	  structure of the result of reachable objects. Keys of table
-	  contains object_id of each reachable objects. Value of table
-	  is an object itself or an instance of InternalObjectWrapper.
-	  To avoid duplication, we use st_table and object_id keys.
-
-	* ext/objspace/objspace.c (type2sym): bug fix.
-	  Should use `i' instead of `type'.
-
-Wed Oct 24 10:33:09 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (garbage_collect, gc_marks): move the location of
-	  clear and restore rb_objspace_t::mark_func_data
-	  from garbage_collect() to gc_marks().
-
-Wed Oct 24 10:17:45 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* ext/objspace/objspace.c (Init_objspace): add a new method
-	  `ObjectSpace::InternalObjectWrapper#internal_object_id' which returns
-	  an object id of a wrapped internal object.
-
-Wed Oct 24 08:55:04 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* ext/objspace/objspace.c (ObjectSpace.reachable_objects_from):
-	  internal object support.
-	  If given object `obj' has references to internal objects
-	  (such as T_NODE objects), then this method returns instances of
-	  `ObjectSpace::InternalObjectWrapper' instead of that internal objects.
-	  This instance contains a reference to an internal object and you can
-	  check the type of internal object using
-	  `ObjectSpace::InternalObjectWrapper#type' method.
-	  Rdoc of `InternalObjectWrapper' is not prepared yet.
-
-	* gc.c (rb_objspace_reachable_objects_from), gc.h: change
-	  an interface of 'rb_objspace_reachable_objects_from()'
-
-	* gc.c, gc.h: add two APIs
-	  - rb_objspace_markable_object_p(obj): check markable or not.
-	  - rb_objspace_internal_object_p(obj): check internal or not.
-
-Wed Oct 24 05:52:36 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_call_method): remove `default' and
-	  add a case for `VM_METHOD_TYPE_UNDEF'.
-
-Wed Oct 24 05:41:18 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* eval_error.c (error_print), vm_eval.c (eval_string_with_cref),
-	  vm_trace.c (rb_suppress_tracing): use TH_PUSH_TAG() instead of
-	  PUSH_TAG().
-
-Wed Oct 24 05:17:52 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_eval.c (vm_call0_body): remove RUBY_VM_CHECK_INTS()
-	  after method invocation using rb_call0().
-
-	* vm_eval.c (vm_call0_body): remove default section on top of
-	  switch statement and add cases for `VM_METHOD_TYPE_CFUNC_FRAMELESS'
-	  and `VM_METHOD_TYPE_UNDEF'.
-
-	* vm_eval.c (vm_call0_body): remove useless brackets.
-
-Tue Oct 23 22:34:49 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* thread.c (thread_raise_m):  check interrupts after Thread#raise
-	  if a target thread is the current thread because the behavior
-	  of Thread.current.raise is expected to perform same as
-	  Kernel.raise (by rubyspec).
-
-Tue Oct 23 17:08:39 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (usage, process_options): show more info in --help.
-	  [EXPERIMENTAL] [ruby-core:48072] [Bug #7184]
-
-Tue Oct 23 14:20:43 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* misc/ruby-electric.el using variable `last-command-event' instead of
-	  obsolete `last-command-char', so that work with Emacs trunk.
-	  a patch by Victor Deryagin <vderyagin AT gmail.com>.
-
-Tue Oct 23 14:06:47 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (visibility_option): visibility attribute is not
-	  available before GCC 4, so do not use -fvisibility option in that
-	  case.  [ruby-core:48147] [Bug #7205]
-
-Tue Oct 23 12:57:29 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h, vm_insnhelper.c, vm_eval.c (OPT_CALL_CFUNC_WITHOUT_FRAME):
-	  add a new optimization and its macro `OPT_CALL_CFUNC_WITHOUT_FRAME'.
-	  This optimization makes all cfunc method calls `frameless', which
-	  is faster than ordinal cfunc method call.
-	  If `frame' is needed (for example, it calls another method with
-	  `rb_funcall()'), then build a frame. In other words, this
-	  optimization delays frame building.
-	  However, to delay the frame building, we need additional overheads:
-	    (1) Store the last call information.
-	    (2) Check the delayed frame building before the frame is needed.
-	    (3) Overhead to build a delayed frame.
-	  rb_thread_t::passed_ci is storage of delayed cfunc call information.
-	  (1) is lightweight because it is only 1 assignment to `passed_ci'.
-	  To achieve (2), we modify GET_THREAD() to check `passed_ci' every
-	  time. It causes 10% overhead on my environment.
-	  This optimization only works for cfunc methods which do not need
-	  their `frame'.
-	  After evaluation on my environment, this optimization does not
-	  effective every time. Because of this evaluation results, this
-	  optimization is disabled at default.
-
-	* vm_insnhelper.c, vm.c: add VM_PROFILE* macros to measure behaviour
-	  of VM internals. I will extend this feature.
-
-	* vm_method.c, method.h: change parameters of the `invoker' function.
-	  Receive `func' pointer as the first parameter.
-
-Tue Oct 23 06:21:05 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/parser.c: just get the constant defined in Ruby.
-
-	* ext/psych/lib/psych/syntax_error.rb: Psych::SyntaxError now inherits
-	  from StandardError rather than SyntaxError.  Thanks Eric Hodel!
-
-	* test/psych/test_exception.rb: tests for change.
-
-Tue Oct 23 06:17:36 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/scalar_scanner.rb: Cache symbols while
-	  tokenizing.  Thanks Kevin Menard!
-
-Tue Oct 23 06:15:40 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/scalar_scanner.rb: Updated the RegExp to catch
-	  Strings earlier in the tokenization process.  Thanks Kevin Menard!
-
-Tue Oct 23 06:12:39 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/visitors/to_ruby.rb: Handle nil tags specially
-	  to avoid slow method_missing calls.  Thanks Kevin Menard!
-
-Tue Oct 23 06:07:57 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/scalar_scanner.rb: Ignore bad timestamps.  If
-	  something looks like a timestamp but has an invalid component, treat
-	  it as a string instead of throwing an ArgumentError.
-	  Thanks Rhett Sutphin!
-
-	* test/psych/test_scalar_scanner.rb: appropriate tests.
-
-Tue Oct 23 06:04:07 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/scalar_scanner.rb: Fix scalar_scanner to
-	  understand strings starting with an underscore and containing only
-	  digits.  Thanks Kelley Reynolds.
-
-	* test/psych/test_scalar_scanner.rb: test for fix
-
-Tue Oct 23 06:00:41 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych.rb: Changed comment in psych.rb to update new
-	  home page for libyaml.  Thanks to Carolyn Ann.
-
-Sun Oct 21 19:12:59 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* vm_core.h (rb_vm_t::trace_running): add a new field
-	  `trace_running' to store vm global tracing status.
-
-	* vm_trace.c: fix SEGV bug. event_hook was free'd
-	  even when the hook is still used in another thread.
-	  [ruby-dev:46141] [Bug #7032]
-
-Sun Oct 21 19:12:42 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* vm_core.h (rb_vm_t::trace_flag): remove `trace_flag'
-	  which is no longer used.
-
-Sun Oct 21 18:34:27 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_parse.c (date__parse): uses more tight parser if
-	  defined TIGHT_PARSER.  now inactivated; because it introduces
-	  incompatibilities and it is a bit slow.
-
-Sat Oct 20 15:35:06 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* include/ruby/ruby.h: add C APIs.
-	  VALUE rb_newobj_of(VALUE klass, VALUE flags)
-	  #define NEWOBJ_OF(obj,type,klass,flags)
-	  These allow to change a allocation strategy depending on klass
-	  or flags.
-
-	* gc.c: ditto
-
-	* array.c: use new C API.
-	* bignum.c: ditto
-	* class.c: ditto
-	* complex.c: ditto
-	* ext/socket/ancdata.c: ditto
-	* ext/socket/option.c: ditto
-	* hash.c: ditto
-	* io.c: ditto
-	* marshal.c: ditto
-	* numeric.c: ditto
-	* object.c: ditto
-	* random.c: ditto
-	* range.c: ditto
-	* rational.c: ditto
-	* re.c: ditto
-	* string.c: ditto
-	* struct.c: ditto
-	  [Feature #7177][Feature #7047]
-
-Sat Oct 20 12:50:00 2012  Zachary Scott	<zachary@zacharyscott.net>
-
-	* ext/socket/socket.c: Documentation for Socket
-	  Based on a patch by David Albert
-	  [Bug #7105] [ruby-core:47828]
-
-Sat Oct 20 11:00:00 2012  Zachary Scott	<zachary@zacharyscott.net>
-
-	* lib/open-uri.rb: Documentation for OpenURI
-
-Sat Oct 20 06:18:34 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* hash.c (initialize_copy): unset the default proc if there isn't one
-	  for the target hash, call to_hash, check frozen status.
-
-Fri Oct 19 22:22:01 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm.c (rb_vm_jump_tag_but_local_jump): pass through thrown objects.
-	  [ruby-dev:46234] [Bug #7185]
-
-	* vm_eval.c (rb_eval_cmd): if state is non-zero, val should be nil and
-	  rb_vm_jump_tag_but_local_jump() just jump tag.
-
-Fri Oct 19 22:11:55 2012  Benoit Daloze  <eregontp@gmail.com>
-
-	* pack.c (pack_unpack): set encoding of the
-	  'H','h','B' and 'B' modifiers to US-ASCII.
-
-	* test/ruby/test_pack.rb: tests for the above.
-	  [ruby-core:47653][Bug #7050]
-
-	* test/test_securerandom.rb: tests for SecureRandom.hex
-	  from tenderlove. [ruby-core:46792][Bug #6799]
-
-Fri Oct 19 19:29:11 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h (rb_method_cfunc_t::invoker): add new field (func ptr)
-	  `invoker'. `invoker' function invoke cfunc body
-	  (rb_method_cfunc_t::func).
-	  `invoker' is set at method definition timing.
-	  With this change, the big `switch' (branch) in `call_cfunc()'
-	  is no longer needed.
-	  However, the performance benefit is only a bit.
-
-	* vm_core.h (rb_call_info_t::aux::func): add a new field to store
-	  cfunc body function pointer.
-
-	* vm_method.c (call_cfunc_invoker_func): add a new function which
-	  returns a suitable invoke function.
-
-	* vm_method.c (setup_method_cfunc_struct): added.
-
-	* vm_method.c (rb_add_method): fix to set `invoker'.
-
-	* vm_eval.c (vm_call0_body): catch up above changes.
-
-	* vm_insnhelper.c (call_cfunc): removed.
-
-	* vm_insnhelper.c (vm_call_cfunc): fix to call cfunc body
-	  with `invoker' function.
-
-Fri Oct 19 16:55:58 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* eval.c, vm_eval.c: use TH_PUSH_TAG() instead of PUSH_TAG().
-
-Fri Oct 19 11:13:55 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/driver.rb: remove unexpected `output'.
-	  (commit miss)
-
-Fri Oct 19 10:24:03 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_search_method): remove needless local variable.
-
-Fri Oct 19 10:22:26 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/bmx_temp.rb: removed.
-	  This file should not be in repository.
-
-Fri Oct 19 10:20:10 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/driver.rb: add new option `--ruby-arg [ARG]'
-	  which is passed as a launch parameter for each ruby's execution.
-	  ($ ruby [ARG] [File])
-
-Thu Oct 18 18:42:35 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* insns.def (opt_send_simple): move the location of
-	  `opt_send_simple' to the place near `send' definition.
-	  (to take care about icache locality).
-
-Thu Oct 18 18:29:25 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* insns.def (send): remove unused condition.
-	  This condition will be true after r37258.
-
-	* vm_insnhelper.c (vm_caller_setup_args): remove `UNLIKELY' on
-	  checking blockiseq (it seems `LIKELY').
-
-Thu Oct 18 17:31:58 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* insns.def (opt_send_simple): introduce new instruction used
-	  when no need to care about block and splat.
-
-	* compile.c: use the `opt_send_simple' instruction.
-
-Thu Oct 18 16:44:07 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_method.c (rb_add_method_cfunc, rb_add_method_cfunc_frameless):
-	  check arity earlier at definition time.
-
-Thu Oct 18 15:11:31 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c: add `inline' keyword to several functions.
-	  Compilers (gcc) are conservative than I expected.
-
-Thu Oct 18 15:01:15 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* include/ruby/ruby.h: add a decl. of
-	  `rb_define_frameless_method()'.
-
-Thu Oct 18 14:31:17 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (new_callinfo): set a temporary index of callinfo
-	  (used in `iseq_set_sequence()') to rb_call_info_t::aux::index.
-	  rb_call_info_t::argc is initialized by same value of
-	  rb_call_info_t::orig_argc.
-
-Thu Oct 18 14:11:08 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* class.c (rb_define_frameless_method): rename from
-	  rb_define_method_fast(). Defined method with this C API
-	  does not make a method frame. It is bit lightweight than
-	  ordinal C functions. Now only 0 or 1 argc are permitted.
-
-	* method.h (VM_METHOD_TYPE_CFUNC_FRAMELESS): rename macro name
-	  from VM_METHOD_TYPE_CFUNC_FAST.
-
-	* vm_insnhelper.c, vm_method.c: rename related functions.
-
-	* proc.c (rb_method_entry_arity): catch up above changes.
-
-Thu Oct 18 10:30:34 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (assignable_gen): fail if yyerror occurred.  fix a bug in
-	  r36973.
-
-Thu Oct 18 09:23:03 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* hash.c (initialize_copy): duping should rehash the hash.
-
-	* test/ruby/test_hash.rb: added a test to ensure rehash.
-
-Wed Oct 17 21:16:47 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* common.mk (WPROGRAM): need same dependencies as PROGRAM.
-
-	* cygwin/GNUmakefile.in (uncommon.mk): move include position
-	  below WPROGRAM definition to be defined in uncommon.mk.
-
-	* ext/extmk.rb (all, static): fix make rubyw.exe failure with make -jN.
-	  If make of ruby.exe and rubyw.exe run in parallel, link dll and link
-	  exe run in parallel, which causes link failure on mingw. To fix this,
-	  we make ruby.exe and rubyw.exe in one make process.
-	  [ruby-core:48007] [Bug #7165]
-
-Wed Oct 17 16:25:34 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/bm_vm2_method_missing.rb: add a benchmark to measure
-	  performance of invoking `method_missing'.
-
-Wed Oct 17 16:23:17 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_getivar): fix to use `aux.index' instead of
-	  `aux.opt_pc'.
-
-Wed Oct 17 16:03:54 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_call_method_missing): make a refactoring
-	  about method_missing process. Use `vm_call_method()' to invoke
-	  `method_missing' method instead of `rb_funcall2()'.
-	  In `vm_call_method()', set fastpath to `vm_call_method_missing()'
-	  if it can be cached.
-
-	* vm_core.h (rb_call_info_t): add new field
-	  `rb_call_info_t::aux::missing_reason' to pass the reason to
-	  `vm_call_method_missing()'.
-
-Wed Oct 17 15:33:12 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (opt-dir): allow multiple directories separated by
-	  $PATH_SEPARATOR as well as dir_config in mkmf.rb. [ruby-core:47868]
-	  [Bug #7120]
-
-Wed Oct 17 15:08:13 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/imap.rb: fix Net::IMAP::ResponseParser to accept
-	  message/delivery-status ([ruby-core:47920] [Bug #7146]),
-	  message/rfc822 attachments ([ruby-core:47921] [Bug #7147]), and
-	  (BODY ("MIXED")) ([ruby-core:47951] [Bug #7153]).
-	  patched by Tony Arkles.
-
-	* test/net/imap/test_imap_response_parser.rb: related test.
-
-Wed Oct 17 11:04:48 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/ruby/test_hash.rb (TestHash#test_dup_equality): added a new test
-	  to show the problem of r37232.
-
-Wed Oct 17 10:48:40 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_insnhelper.c (vm_search_method): fix a build error that occurs
-	  when OPT_INLINE_METHOD_CACHE is 0.
-
-Wed Oct 17 08:46:47 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/bm_vm2_dstr.rb: add a benchmark to measure
-	  performance of dynamic generated string ("foo#{bar}baz").
-
-Wed Oct 17 08:32:46 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (compile_dstr_fragments): use `putobject' instead of
-	  `putstring' for all of strings used by NODE_DSTR because
-	  ruby users can not grab this string.
-	  For example, the string object of "baz" in "foo#{bar}baz"
-	  is located by `putobject' (users can not touch "baz" object
-	  directly). This change reduces GC pressure.
-	  This improvement is suggested by Aaron Patterson.
-
-Wed Oct 17 08:02:57 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* thread.c (rb_threadptr_interrupt_mask): fix to check interrupt
-	  after interrupt_mask changed.
-
-Wed Oct 17 06:42:47 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_call_method): fix to return value immediately.
-	  Remove CHECK_INTS() after that method dispatch.
-
-Wed Oct 17 06:25:56 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* hash.c (initialize_copy): copy the underlying st_table on dup,
-	  rather than copying the hash key by key. [ruby-core:48009]
-
-	* test/ruby/test_hash.rb: relevant tests for initialize_copy
-
-Wed Oct 17 06:17:44 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_call_iseq_setup_2): separate tailcall and normal
-	  method frame setup functions.
-	  Add checking interrupts at the tailcall setup function.
-
-Wed Oct 17 05:35:37 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/bm_vm1_yield.rb: add a benchmark to measure `yield'
-	  (invoke empty block) performance.
-
-	* benchmark/bm_vm2_method_with_block.rb: add a benchmark to measure
-	  method invocation with empty block.
-
-Wed Oct 17 05:05:07 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_invoke_block): vm_caller_setup_args() can skip
-	  when splat flag is not set.
-
-Wed Oct 17 01:53:47 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_getivar, vm_setivar): support index inline cache
-	  with rb_call_info_t to speedup `attr' getter and setter.
-	  Cached index is stored in rb_call_info_t::aux::index.
-	  `index' == 0 means not cached. `index' > 0 means cached and cached
-	  index is `index - 1'.
-
-	* insns.def ((get|set)instancevariable): use new wrapper functions
-	  vm_(get|set)instancevariable() defined in vm_insnhelper.c.
-
-	* vm_core.h (rb_call_info_t::aux): introduce new union data because
-	  opt_pc can share with index.
-
-Tue Oct 16 22:24:44 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/driver.rb (show_results): Show speedup ratio
-	  with first executables score at last of results
-	  if two or more executables are given.
-
-Tue Oct 16 21:59:01 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/driver.rb: some refactoring.
-	  (1) Remove `average differential'.
-	      In this benchmark driver, We should not care about `average'.
-	      We use fastest score because this score should not include
-	      any disturbances (affections of background process, etc).
-	      If you care about timing affect, I recommend `median'
-	      score with more than 5 examinations rather than simple
-	      `average' score (`average' score was affected by error scores).
-	  (2) Show log file name.
-	  (3) Change default directory from './' to driver's directory.
-
-Tue Oct 16 14:56:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_file_join): need to check again after any conversion run.
-	  [ruby-core:48012] [Bug #7168]
-
-Tue Oct 16 12:52:14 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* test/ruby/envutil.rb (Test::Unit::Assertions#assert_file):
-	  rename from file_assertion.
-
-Tue Oct 16 11:30:18 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_file_join): hide the result under construction until
-	  return.
-
-	* file.c (rb_file_join): check nul-byte only for strings, since
-	  FilePathStringValue() does it.  [ruby-core:48012] [Bug #7168]
-
-	* file.c (rb_file_join): path names must be ASCII-compatible.
-	  [ruby-core:48012] [Bug #7168]
-
-	* file.c (check_path_encoding): new function to ensure path name
-	  encoding to be ASCII-compatible.
-
-Tue Oct 16 09:40:04 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/ruby/test_regexp.rb
-	  (TextRegexp#test_raw_hyphen_and_tk_char_type_after_range): use
-	  Regexp.new instead of literal to ignore a parser warning.
-
-Tue Oct 16 09:30:30 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/ruby/test_regexp.rb
-	  (TextRegexp#test_raw_hyphen_and_tk_char_type_after_range): ignoring
-	  warnings are already set in setup method.
-
-Tue Oct 16 06:44:06 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (VM_CALLEE_SETUP_ARG): fix wrong condition.
-
-Tue Oct 16 06:29:18 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_call_method): disable CI_SET_FASTPATH() if
-	  this method call needs splat argument because cached functions
-	  (vm_call_attrset, vm_call_ivar, vm_call_cfunc_fast_(unary|binary))
-	  do not check an arity.
-
-	* bootstraptest/test_method.rb: add a test to check an above issue.
-
-Tue Oct 16 06:15:44 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: introduce new method type VM_METHOD_TYPE_CFUNC_FAST.
-	  This method is similar to VM_METHOD_TYPE_CFUNC methods, but
-	  called cfunc without building new frame (does not push new control
-	  frame). If error is occurred in cfunc, the backtrace only shows
-	  caller frame and upper.
-	  This kind of methods can be added by rb_define_method_fast().
-	  This feature is similar to specialized instructions (opt_plus, etc),
-	  but more flexible (but a bit slower).
-
-	* class.c (rb_define_method_fast): added.
-	  Maybe it will be renamed soon.
-
-	* vm_insnhelper.c (vm_call_method): support method type
-	  VM_METHOD_TYPE_CFUNC_FAST.
-
-	* proc.c (rb_method_entry_arity): catch up new method type.
-
-	* vm_method.c (rb_add_method_cfunc_fast): added.
-
-Tue Oct 16 02:32:29 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.h (CI_SET_FASTPATH): add new parameter `enabled'.
-	  If `enable' is 0 then CI_SET_FASTPATH() doesn't work.
-	  And add new configuration option OPT_CALL_FASTPATH. If this macro
-	  was defined by 0, then CI_SET_FASTPATH() doesn't work any more.
-
-	* vm_insnhelper.c (vm_call_method): Pass `0' for `enabled' parameter
-	  of CI_SET_FASTPATH if this method is protected.
-
-Tue Oct 16 02:17:35 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h (VM_CALL_*): rename VM_CALL_*_BIT
-	  to VM_CALL_* (remove `_BIT' suffix).
-	  Add comments on each macros.
-	  Remove unused macro VM_CALL_TAILRECURSION_BIT.
-
-	* compile.c, iseq.c, insns.def, vm_insnhelper.c: ditto.
-
-Mon Oct 15 22:14:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/ruby/envutil.rb (Test::Unit::Assertions#file_assertion):
-	  rewrite file assertions.
-
-Mon Oct 15 09:41:17 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (VM_CALLEE_SETUP_ARG): skip CI_SET_FASTPATH() if
-	  it was called from vm_yield_setup_args().
-
-Mon Oct 15 05:20:13 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.h CI_SET_FASTPATH: introduce new macro
-	  `CI_SET_FASTPATH(ci, func)'. This macro set `ci->call' as `func'.
-	  `func' (ci->call) is called at the last of `send'
-	  (and `invokesuper') instruction.
-	  `CI_SET_FASTPATH' does not set `ci->call' when the method
-	  (stored in `ci->me') is `protected'.
-
-	* vm_insnhelper.c (vm_call_method): use `CI_SET_FASTPATH'.
-	  After several checking (visibility, argc checking), the result of
-	  checking can be reused until re-definition of this method
-	  with inline method cache.
-
-	  Note that this optimization is now experimental.
-	  If you find any problem about it, please tell us.
-
-Mon Oct 15 04:51:55 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c: refactoring.
-	  - move all `call' related functions to the last of file.
-	  - make functions for respective method types in vm_call_method().
-	    (all functions have same function parameters)
-
-	* vm_core.h: add `opt_pc' field in `rb_call_info_t'
-	  as temporal variable.
-
-	* vm_eval.c (vm_call0_body): catch up above changes.
-
-Mon Oct 15 03:51:46 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/bm_vm1_attr_ivar(_set).rb: added (for method dispatch speed).
-
-	* benchmark/bm_vm1_float_simple.rb: added (for flonum/float).
-
-Mon Oct 15 02:51:16 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_eval.c (vm_call0_body): add new function.
-	  `vm_call0()' makes call_info struct and calls `vm_call0_body()'
-	  with this struct. In near future, `vm_call0()' will be removed
-	  because all of `vm_call0()' users setup call_info struct by itself.
-
-Mon Oct 15 01:38:06 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* insns.def (send, invokesuper, invokeblock, opt_*), vm_core.h:
-	  use only a `ci' (rb_call_info_t) parameter instead of using
-	  parameters such as `op_id', 'op_argc', `blockiseq' and flag.
-	  These information are stored in rb_call_info_t at the compile
-	  time.
-	  This technique simplifies parameter passing at related
-	  function calls (~10% speedups for simple method invocation at
-	  my machine).
-	  `rb_call_info_t' also has new function pointer variable `call'.
-	  This `call' variable enables to customize method (block)
-	  invocation process for each place. However, it always call
-	  `vm_call_general()' at this changes.
-	  `rb_call_info_t' also has temporary variables for method
-	  (block) invocation.
-
-	* vm_core.h, compile.c, insns.def: introduce VM_CALL_ARGS_SKIP_SETUP
-	  VM_CALL macro.  This flag indicates that this call can skip
-	  caller_setup (block arg and splat arg).
-
-	* compile.c: catch up above changes.
-
-	* iseq.c: catch up above changes (especially for TS_CALLINFO).
-
-	* tool/instruction.rb: catch up above changes.
-
-	* vm_insnhelper.c, vm_insnhelper.h: ditto. Macros and functions
-	  parameters are changed.
-
-	* vm_eval.c (vm_call0): ditto (it will be rewritten soon).
-
-Sun Oct 14 12:30:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (rb_f_sub, rb_f_gsub): pass the given block.
-	  [ruby-core:47967] [Bug #7157]
-
-Sat Oct 13 23:15:39 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* regparse.c (parse_char_class): should match with a hyphen after a
-	  range in a character class.
-
-	* test/ruby/test_regexp.rb (TestRegexp#test_char_class): fixed wrong
-	  test.
-
-	* test/ruby/test_regexp.rb (TestRegexp#check): now can accept the
-	  error message.
-
-	* test/ruby/test_regexp.rb
-	  (TextRegexp#test_raw_hyphen_and_tk_char_type_after_range): renamed
-	  because the previous name was wrong.
-
-	* test/ruby/test_regexp.rb
-	  (TextRegexp#test_raw_hyphen_and_tk_char_type_after_range): added
-	  more test pattern.
-
-Sat Oct 13 03:01:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (realpath_rec): prevent link from GC while link_names refers
-	  the content.
-
-Sat Oct 13 01:37:48 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/ruby/test_regexp.rb
-	  (TestRegexp#test_raw_hyphen_and_type_char_after_range): added new
-	  test. ref [ruby-core:47115] [Backport #6853]
-
-Fri Oct 12 21:55:08 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* include/ruby/win32.h (rb_w32_pow): set floating point precision
-	  for mingw-w64 x86 pow(). This improves the precision of pow() on
-	  Windows XP for TestFloat#test_round_with_precision failure.
-	  [ruby-core:47911] [Bug #7142]
-
-Fri Oct 12 21:37:25 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* test/webrick/test_cgi.rb (TestWEBrickCGI#test_cgi): skip a test
-	  depending on locale on Windows. ENV[] doesn't work properly if
-	  console code page is not equal to file system encoding.
-	  [ruby-core:47910] [Bug #7140]
-
-Fri Oct 12 20:40:29 2012  Tanaka Akira  <akr@fsij.org>
-
-	* process.c (posix_sh_cmds): the command name of colon is ":".
-
-Fri Oct 12 18:18:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_get_path_check): path name must not contain NUL bytes.
-
-Fri Oct 12 16:06:20 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* tool/merger.rb: now can merge revision(s) without --ticket again.
-
-Fri Oct 12 14:10:41 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (dir_config, init_mkmf): use configured libdir value as
-	  default library path.  [ruby-core:43726] [Bug #6207]
-
-Fri Oct 12 05:25:00 2012  Zachary Scott	<zzak@ruby-lang.org>
-
-	* lib/timeout.rb (timeout):
-	  Remove paragraph on wrong implementation detail.
-	  [ruby-core:47739] [Bug #7088]
-
-Thu Oct 11 23:09:46 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_sub{seq,pos,str}, rb_str_each_{line,codepoint}):
-	  prevent String copies from GC.  [ruby-core:47881] [Bug #7135]
-
-Thu Oct 11 07:40:50 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* iseq.c (insn_operand_intern): cast op to rb_call_info_t* before
-	  compare with iseq->callinfo_entries whose type is rb_call_info_t*.
-
-Thu Oct 11 03:37:08 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* bootstraptest/test_block.rb: add tests for block with super.
-
-Thu Oct 11 02:54:07 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_dump.c: fix debug prints to catch up recent changes
-	  such as VM data structures.
-
-Thu Oct 11 02:50:34 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.c (insn_operand_intern): add support disasm TS_CALLINFO
-	  operands.
-
-Wed Oct 10 15:12:48 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/ruby/test_process.rb (TestProcess#test_execopts_gid): skip on
-	  windows because the platform does not have Process.group method.
-	  patched by Jon Forums in [ruby-core:47878] [Bug #7133].
-
-Tue Oct  9 23:18:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/ruby/envutil.rb (assert_file, assert_file_not): more
-	  descriptive assertions for File predicates.
-
-Tue Oct  9 18:01:37 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* array.c (rb_ary_sample): use rb_random_ulong_limited, since
-	  precision of long may be larger than double.
-
-	* random.c (rb_random_ulong_limited): new function to return a random
-	  value from 0 upto limit as unsigned long, similarly to
-	  rb_genrand_ulong_limited but with arbitrary RNG object.
-
-Tue Oct  9 17:13:27 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* process.c (rb_execarg_addopt, rb_execarg_run_options): add :uid and
-	  :gid options.  [ruby-core:47414] [Feature #6975]
-
-Tue Oct  9 14:36:11 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.c (iseq_free): fix memory leak.
-	  rb_iseq_t::callinfo_entries should be freed.
-
-Tue Oct  9 14:28:18 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h (rb_call_info_t): add new type `rb_call_info_t'.
-	  This data structure contains information including inline method
-	  cache. After that, `struct iseq_inline_cache_entry' does not
-	  need to contain inline cache for method invocation.
-	  Other information will be added to this data structure.
-
-	* vm_core.h (rb_iseq_t): add `callinfo_entries' and `callinfo_size'
-	  members to `rb_iseq_t'.
-
-	* insns.def, compile.c: Use CALL_INFO instead of IC.
-
-	* tool/instruction.rb: support CALL_INFO as operand type.
-
-	* vm_insnhelper.c, vm_insnhelper.h: ditto.
-
-Sun Oct  7 23:54:33 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* ext/zlib/zlib.c (zstream_run_func): don't call inflate() when
-	  z->stream.avail_in == 0. it return Z_BUF_ERROR.
-	  but deflate() could be called with z->stream->avail_in == 0 because
-	  it has hidden buffer in z->stream->state (opaque structure).
-	  fix for gem install error. [ruby-dev:46149] [Bug #7040]
-
-Mon Oct  8 23:55:41 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (rb_mod_refinements): new method Module#refinements.
-
-	* test/ruby/test_refinement.rb: add new tests for the above changes.
-
-Mon Oct  8 23:02:19 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c, gc.c, iseq.c, node.h, vm_insnhelper.c, vm_insnhelper.h,
-	  vm_method.c: rename omod and overlaid modules to refinements.
-
-	* eval.c (hidden_identity_hash_new): renamed from identity_hash_new.
-
-Sun Oct  7 04:50:00 2012  Zachary Scott  <zzak@ruby-lang.org>
-
-	* lib/abbrev.rb: Documentation examples for Abbrev.
-	  [ruby-core:47442] [Bug #6985]
-
-Sun Oct  7 04:50:00 2012  Zachary Scott  <zzak@ruby-lang.org>
-
-	* thread.c (rb_thread_aref):
-	  Grammar in Thread documentation.
-	  Patch by Steve Klabnik [ruby-core:47799] [Bug #7099]
-
-Sun Oct  7 04:37:00 2012  Zachary Scott  <zzak@ruby-lang.org>
-
-	* string.c (rb_str_match):
-	  Clarify behavior for captured strings and local variable assignment
-	  Patch by Marcus Stollsteimer [ruby-core:47668] [Bug #7062]
-
-Sat Oct  6 18:31:36 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_opts.h (OPT_GLOBAL_METHOD_CACHE): new build option to
-	  enable/disable global method caching. [ruby-dev:46203] [Bug #7111]
-
-	* vm_method.c (rb_method_entry_get_with_omod): don't use global
-	  method cache if OPT_GLOBAL_METHOD_CACHE is 0.
-
-Sat Oct  6 16:32:04 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_method.c (search_method): check omod only once for performance.
-
-Sat Oct  6 09:42:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* enc/encdb.c, enc/utf_16_32.h (ENC_DUMMY_UNICODE): endian-less wide
-	  UTF encodings are dummy but Unicode.
-
-	* encoding.c (rb_encdb_set_unicode): set Unicode flag.
-
-	* template/encdb.h.tmpl: allow ENC_DUMMY variants.
-
-	* encoding.c (rb_enc_unicode_p): oniguruma provides Unicode flag.
-
-Fri Oct  5 17:18:42 JST 2012  TAKANO Mitsuhiro  <tak@no32.tk>
-
-	* template/Doxyfile.tmpl: remove SHOW_DIRECTORIES and
-	  HTML_ALIGN_MEMBERS lines. They have been obsolete in
-	  Doxygen version 1.8.2.
-
-Fri Oct  5 15:26:18 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* ext/objspace/objspace.c: add ObjectSpace#reachable_objects_from.
-	  This method returns an array of objects referenced by given object.
-	  If given object is special objects such as true/false/nil/Fixnum etc
-	  then it returns nil. See rdoc for details.
-	  [ruby-core:39772]
-
-	* test/objspace/test_objspace.rb: add a test for this method.
-
-	* gc.c: add rb_objspace_reachable_objects_from().
-	  To make this function, add several member `mark_func_data'
-	  to rb_objspace_t.  If mark_func_data is not null, then
-	  gc_mark() calls mark_func_data::mark_func.
-
-	* gc.h: export rb_objspace_reachable_objects_from().
-
-Thu Oct  4 23:40:04 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* gc.c (init_heap): call init_mark_stack before to allocate
-	  altstack. This change avoid the stack overflow at the signal
-	  handler on 32bit, but I don't understand reason... [Feature #7095]
-
-Thu Oct  4 22:39:27 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* insns.def (getlocal, setlocal): remove old getlocal/setlocal
-	  instructions and rename getdaynmic/setdynamic instructions
-	  to getlocal/setlocal.
-
-	* compile.c: ditto.
-
-	* iseq.c: remove TS_DINDEX.
-
-	* vm_exec.h (dindex_t): remove type definition of `dindex_t'.
-
-	* tool/instruction.rb: ditto.
-
-Thu Oct  4 21:44:17 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c (vm_analysis_insn|operand|register): use st_insert
-	  instead of using rb_hash_aset() because rb_hash_aset()
-	  check $SAFE.
-
-Thu Oct  4 21:15:26 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c (VM_COLLECT_USAGE_DETAILS): make new VM usage analysis
-	  hooks (old macro name is COLLECT_USAGE_ANALYSIS).
-	  This feature is only for VM developers.  (I'm not sure I can use
-	  `VM developers' (the plural form) in this sentence).
-	  If VM_COLLECT_USAGE_DETAILS is not 0, VM enables the following
-	  usage collection features:
-	    (1) instruction: collect instruction usages.
-	    (2) operand: collect operand usages.
-	    (3) register: collect register usages.
-	  The results are stored in
-	    RubyVM::USAGE_ANALYSIS_INSN for (1, 2),
-	    RubyVM::USAGE_ANALYSIS_INSN_BIGRAM for (1) and
-	    RubyVM::USAGE_ANALYSIS_REGS for (3).
-	  You can stop collecting usages with
-	    RubyVM::USAGE_ANALYSIS_INSN_STOP(),
-	    RubyVM::USAGE_ANALYSIS_OPERAND_STOP(),
-	    RubyVM::USAGE_ANALYSIS_REGISTER_STOP()
-	  for (1), (2), (3) respectively.
-	  You can also change the hook functions by setting
-	  C level global variables
-	    `ruby_vm_collect_usage_func_(insn|operand|register)'
-	  for (1), (2), (3) respectively.
-	  See codes for more details.
-
-	* tool/instruction.rb: fix macro names.
-
-	* iseq.c (insn_operand_intern): make it export (used in vm.c).
-	  fix to skip several processes if not needed (pointer is 0).
-
-	* vm_dump.c: move codes for collection features to vm.c.
-
-	* vm_exec.h: rename macro and function names.
-
-	* vm_insnhelper.h: ditto.
-
-Thu Oct  4 18:59:14 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* test/ruby/test_settracefunc.rb (test_tracepoint):
-	  remove unused test case.
-	  (this test case is redefined by newer tests)
-
-Thu Oct  4 17:24:51 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* gc.c (rb_objspace_call_finalizer): call gc_mark_stacked_objects
-	  at suitable point.
-
-Thu Oct  4 16:31:29 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gc.c (rb_objspace_call_finalizer): mark self-referencing finalizers
-	  before run finalizers, to fix SEGV from btest on 32bit.
-
-	* gc.c (gc_mark_stacked_objects): extract from gc_marks().
-
-Thu Oct  4 11:43:28 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread_pthread.c (ruby_init_stack): round stack limit to page size
-	  boundary to calculate stack size more precisely.  [ruby-dev:46174]
-	  [Bug #7084]
-
-Wed Oct  3 19:51:57 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* gc.c: Use the non-recursive marking instead of recursion. The
-	  recursion marking of CRuby needs checking stack overflow and the
-	  fail-safe system, but these systems not good at partial points,
-	  for example, marking deep tree structures. [ruby-dev:46184]
-	  [Feature #7095]
-
-	* configure.in (GC_MARK_STACKFRAME_WORD): removed. It's used by
-	  checking stack overflow of marking.
-
-	* win32/Makefile.sub (GC_MARK_STACKFRAME_WORD): ditto.
-
-Wed Oct  3 15:33:02 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread_pthread.c (ruby_init_stack): use getrlimit() for the main
-	  thread on Mac OS X, since pthread_get_stack{addr,size}_np()
-	  return the default value always, but not the ulimit value.
-	  [ruby-dev:46174] [Bug #7084]
-
-Wed Oct  3 11:43:15 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (rb_io_reopen): improvement to accept optional arguments.
-	  a patch by Glass_saga (Masaki Matsushita) in [ruby-core:47806].
-	  [Feature #7103]
-
-Wed Oct  3 04:36:11 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* ext/openssl/ossl_x509store.c (ossl_x509store_add_file):  Added
-	  documentation
-	* ext/openssl/ossl_x509store.c (ossl_x509store_set_default_paths):
-	  ditto
-	* ext/openssl/ossl_x509store.c (ossl_x509store_add_cert):  ditto
-
-Wed Oct  3 02:23:37 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* error.c (exc_to_s, name_err_to_s, name_err_mesg_to_str): do not
-	  taint messages.
-
-Tue Oct  2 16:47:06 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (identity_hash_new): hide internal hashes for refinements.
-
-	* eval.c (rb_mod_refine): no default value.
+Mon Dec 14 11:41:59 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Mon Oct  1 22:54:02 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* lib/cgi.rb: fix a typo in documentation.
+	  [ci skip][fix GH-1140] Patch by @jutaz
 
-	* eval.c (identity_hash_new): new function to create a new identity
-	  hash.
+Mon Dec 14 11:31:00 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* eval.c (rb_overlay_module, rb_mod_using, rb_mod_refine): use
-	  identity_hash_new().
+	* compile.c: fix typos.
+	  [ci skip][fix GH-1140] Patch by @jutaz
+	* dir.c: ditto.
+	* gc.c: ditto.
+	* io.c: ditto.
+	* node.h: ditto.
+	* thread_pthread.c: ditto.
+	* vm_insnhelper.c: ditto.
+	* vsnprintf.c: ditto.
 
-Mon Oct  1 02:34:53 2012  Akinori MUSHA  <knu@iDaemons.org>
+Mon Dec 14 11:27:01 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* configure.in (--with-opt-dir): Make this also work on DLDFLAGS
-	  so LIBRUBY_SO links fine with libexecinfo installed in a
-	  non-system directory.
+	* enc/iso_2022_jp.h: fix typos.
+	  [ci skip][fix GH-1140] Patch by @jutaz
+	* enc/utf_16_32.h: ditto.
+	* enc/utf_7.h: ditto.
 
-Sun Sep 30 23:32:00 2012  Kenta Murata  <mrkn@mrkn.jp>
+Mon Dec 14 11:25:57 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* vm_dump.c (rb_vm_bugreport): add /Library/Logs/DiagnosticReports
-	  in the list of locations of crash reports.
+	* benchmark/bm_app_aobench.rb: fix typos.
+	  [ci skip][fix GH-1140] Patch by @jutaz
+	* benchmark/bm_vm_thread_pipe.rb: ditto.
 
-Sun Sep 30 21:18:03 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Sun Dec 13 23:46:10 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* string.c (rb_str_concat): use memcpy to copy a string which contains
-	  NUL characters. [ruby-core:47751] [Bug #7090]
+	* parse.y (trace_lex_state): trace lex_state changes if yydebug is
+	  set, and send the messages to rb_stdout.
 
-Sat Sep 29 19:41:53 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+	* parse.y (rb_parser_printf): store YYPRINTF messages per lines
+	  so that lex_state traces do not mix.
 
-	* test/ruby/envutil.rb (EnvUtil#invoke_ruby): kill child process
-	  before Timeout::Error is raised. rmdir of mktmpdir fails with
-	  EACCES if child process is alive on Windows.
+	* tool/ytab.sed: add parser argument to yy_stack_print too.
 
-	* test/thread/test_queue.rb (TestQueue): increase timeout.
-	  This test takes long time on Windows XP.
+Sun Dec 13 20:41:16 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Sep 29 19:41:33 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+	* parse.y (build_lex_state_name, trace_lex_state): lex_state is
+	  now bit flags and can be set 2 bits or more.
 
-	* test/net/http/test_http.rb (TestNetHTTP#test_proxy_address):
-	  clear environment variables. If http_proxy environment variable was
-	  set, the test failed.
+Sun Dec 13 20:26:30 2015  Yuki Yugui Sonoda  <yugui@yugui.jp>
 
-	* test/net/http/test_http.rb (TestNetHTTP#test_proxy_port): ditto.
+	* test/ruby/test_syntax.rb: fix typo in test
 
-Sat Sep 29 19:41:11 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+Sun Dec 13 20:12:14 2015  Yuki Yugui Sonoda  <yugui@yugui.jp>
 
-	* test/drb/drbtest.rb (DRbCore#teardown):
-	  Use Process.kill :KILL on Windows because Process.kill :INT silently
-	  fails on Windows 7 and raises EINVAL on Windows XP for spawned
-	  process with new_pgroup: false.
+	* parse.y (parse_percent): Allow %-literals in labeled arg as
+	  r51624 did for parentheses.
+	  Fixes [ruby-core:72084] [Bug #11812].
 
-	* test/drb/drbtest.rb (DRbAry#teardown): ditto.
+Sun Dec 13 20:02:15 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sat Sep 29 19:40:32 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+	* ChangeLog: fix a typo
 
-	* test/ruby/test_unicode_escape.rb (TestUnicodeEscape#test_basic):
-	  set script encoding to work with LANG=C. It would work on both
-	  Windows and Unix. Refix of r37051.
+Sun Dec 13 19:54:26 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sat Sep 29 11:21:06 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* test/lib/envutil.rb: move envutil's assertions under Test::Unit::Assertion.
+	* test/lib/test/unit/assertions.rb: ditto.
 
-	* vm_insnhelper.c (rb_vm_using_modules): use using_modules before
-	  klass to fix method lookup order, and use klass even if klass is
-	  not a module to make refinements in class_eval invoked on classes
-	  work.
+Sun Dec 13 19:24:20 2015  Yuki Yugui Sonoda  <yugui@yugui.jp>
 
-	* eval.c (rb_using_module): accept a class as the second argument.
+	* parse.y (lex_state_name): Make it return the correct names.
+	  Add new names to follow r51617; Indices ffs(2) returns are 1-origin.
 
-	* eval.c (rb_mod_using, f_using): raise a TypeError if the argument
-	  is not a module.
+Sun Dec 13 18:40:45 2015  Yuki Yugui Sonoda  <yugui@yugui.jp>
 
-	* test/ruby/test_refinement.rb: add new tests for the above changes.
+	* parse.y: debug output of lex_state transition if PARSER_DEBUG
 
-Sat Sep 29 02:18:57 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+Sun Dec 13 18:49:25 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_unicode_escape.rb (TestUnicodeEscape#test_basic):
-	  Use ruby only on Windows since the test fails on Unix with LANG=C.
-	  [ruby-core:47709] [Bug #7076]
+	* io.c (parse_mode_enc): preserve encoding of mode string in
+	  warnings.
 
-Fri Sep 28 22:19:31 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+	* io.c (io_encname_bom_p): check BOM prefix only, not including
+	  UTF prefix.
 
-	* test/ruby/test_unicode_escape.rb (TestUnicodeEscape#test_basic):
-	  echo command doesn't work properly against non-ascii character on
-	  Windows with chcp 437. Instead we use ruby.
-	  [ruby-core:47709] [Bug #7076]
+	* io.c (parse_mode_enc): warn BOM with non-UTF encoding.
 
-Fri Sep 28 17:54:31 2012  Koichi Sasada  <ko1@atdot.net>
+	* io.c (parse_mode_enc): fix buffer overflow.
 
-	* vm_insnhelper.c (vm_setup_method): refactoring.
-	  Remove src_argc and use iseq->arg_size directly.
+Sun Dec 13 18:35:57 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Sep 28 17:26:27 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* ext/fiddle/function.c (initialize): check all arguments first.
+	  reported by Marcin 'Icewall' Noga of Cisco Talos.
 
-	* lib/rubygems/installer.rb (check_that_user_bin_dir_is_in_path):
-	  test_generate_bin_bindir_with_user_install_warning(TestGemInstaller)
-	  fails on Windows with msys bash. It makes comparing paths
-	  case-insensitive.
-	  pick from upstream to fix a failure of test-all [ruby-core:47711]
-	 https://github.com/rubygems/rubygems/commit/c474edb2f3704206f04da1c8c6cf9fb079d84abe
+	* ext/fiddle/conversions.h (PTR2NUM): use signed integer to make
+	  Fixnum for negative values.
 
-Fri Sep 28 15:44:45 2012  Shugo Maeda  <shugo@ruby-lang.org>
+Sun Dec 13 18:33:41 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_method.c (search_method): copy refinement iclasses to search
-	  superclasses correctly.
+	* pack.c (pack_pack): always check index range against the
+	  receiver array length, which can be shortened by elements
+	  conversion.  reported by Marcin 'Icewall' Noga of Cisco Talos.
 
-	* test/ruby/test_refinement.rb: related test.
+Sun Dec 13 18:28:52 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Sep 28 15:15:41 2012  Koichi Sasada  <ko1@atdot.net>
+	* ext/psych/psych_emitter.c (start_document): should not exceed
+	  tags array range.
 
-	* insns.def (opt_checkenv): remove unused instruction `opt_checkenv'.
+	* ext/psych/psych_emitter.c (start_document): ensure string before
+	  encoding conversion.
 
-	* compile.c (iseq_compile_each): ditto.
+Sun Dec 13 18:26:31 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* node.h: remove unused node `NODE_OPTBLOCK'.
+	* ext/tk/tkutil/tkutil.c (tk_hash_kv): check types of array
+	  argument.  reported by Marcin 'Icewall' Noga of Cisco Talos.
 
-	* ext/objspace/objspace.c, gc.c (gc_mark_children): ditto.
+	* ext/tk/tkutil/tkutil.c (cbsubst_table_setup): check length of
+	  argument arrays for each access, as callback methods can modify
+	  them.  reported by Marcin 'Icewall' Noga of Cisco Talos.
 
-Fri Sep 28 13:14:34 2012  Koichi Sasada  <ko1@atdot.net>
+	* ext/tk/tkutil/tkutil.c (cbsubst_table_setup): check types of
+	  argument elements.  reported by Marcin 'Icewall' Noga of Cisco
+	  Talos.
 
-	* vm_core.h: now VM_DEBUG_BP_CHECK should be 1.
+Sun Dec 13 18:19:20 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Sep 28 12:51:54 2012  Koichi Sasada  <ko1@atdot.net>
+	* ext/win32ole/win32ole.c (ole_vstr2wc): check argument type, vstr
+	  must be a String here.  reported by Marcin 'Icewall' Noga of
+	  Cisco Talos.
 
-	* vm_core.h: remove rb_control_frame_t::bp (bp: base pointer).
-	  `bp' can be calculate by `sp' (stack pointer) of previous frame.
-	  Now, `bp_check' field is remained for debug.  You can eliminate
-	  this field by setting  VM_DEBUG_BP_CHECK as 0.
+Sun Dec 13 16:41:01 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_insnhelper.c (vm_base_ptr): add `vm_base_ptr(cfp).
-	  This function calculates base pointer from cfp.
+	* configure.in (BOOTSTRAPRUBY): make BASERUBY full path before
+	  building ruby to get rid of unexpectedly invoking built ruby.
+	  [ruby-core:72065] [Bug #11807]
 
-	* vm_insnhelper.c (vm_setup_method): push `recv' value on top of
-	  value stack (before method parameters).
-	  This change is for keeping consistency with normal method dispatch.
+	* configure.in (BOOTSTRAPRUBY): use MINIRUBY but not BASERUBY
+	  unless cross compiling.  [ruby-core:72065] [Bug #11807]
 
-	* insns.def: fix to use vm_base_ptr().
+Sun Dec 13 14:17:19 2015  Akinori MUSHA  <knu@iDaemons.org>
 
-	* vm.c (vm_exec): ditto.
+	* test/test_shellwords.rb (TestShellwords): Add many more tests
+	  for handling whitespace characters and frozenness.
 
-	* vm_dump.c: remove `bp' related dumps.
+Sun Dec 13 14:16:09 2015  Akinori MUSHA  <knu@iDaemons.org>
 
-	* cont.c (fiber_init): fix to check VM_DEBUG_BP_CHECK.
+	* lib/shellwords.rb (Shellwords#shellsplit): Document that this
+	  method does not treat shell metacharacters as such.
 
-Fri Sep 28 10:40:51 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Dec 13 12:17:43 2015  Eric Wong  <e@80x24.org>
 
-	* io.c (rb_io_reopen): accept File::Constants as well as mode string.
-	  based on the patch by Glass_saga (Masaki Matsushita) in
-	  [ruby-core:47694].  [Feature #7067]
+	* lib/shellwords.rb (shellescape): duplicate frozen literal
+	* test/test_shellwords.rb (test_stringification): new test
 
-Thu Sep 27 18:36:51 2012  Shugo Maeda  <shugo@ruby-lang.org>
+Sun Dec 13 11:47:35 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* eval.c (rb_overlay_module, rb_mod_refine): accept a module as the
-	  argument of Module#refine.
+	* object.c (rb_inspect): check the default internal encoding as
+	  String#inspect do.
+	  [ruby-dev:49415] [Bug #11787]
 
-	* vm_method.c (search_method): if klass is an iclass, lookup the
-	  original module of the iclass in omod in order to allow
-	  refinements of modules.
+Sun Dec 13 11:38:12 2015  Akinori MUSHA  <knu@iDaemons.org>
 
-	* test/ruby/test_refinement.rb: add tests for the above changes.
+	* lib/shellwords.rb: Turn on frozen-string-literal after fixing
+	  shellsplit.
 
-Thu Sep 27 18:12:20 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+Sun Dec 13 10:44:44 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/syslog/lib/syslog/logger.rb: add a formatter to the
-	  Syslog::Logger object. [Bug #7065]
-	* test/syslog/test_syslog_logger.rb: ditto.
+	* KNOWNBUGS.rb: Fixed typo, made more explicit [ci skip]
 
-Wed Sep 26 16:39:57 2012  Koichi Sasada  <ko1@atdot.net>
+Sun Dec 13 10:26:47 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* insns.def: add new instruction `opt_empty_p' for optimize `empty?'
-	  method.  Apply a patch proposed at [ruby-dev:46120]
-	  [ruby-trunk - Feature #6972] by Glass_saga (Masaki Matsushita).
+	* ext/openssl/ossl_ssl.c (ssl_npn_select_cb_common): fix parsing
+	  protocol list.
+	  The protocol list from OpenSSL is not null-terminated.
+	  patched by Kazuki Yamaguchi [Bug #11810] [ruby-core:72082]
 
-	* compile.c (iseq_specialized_instruction), vm.c, vm_insnhelper.h:
-	  ditto.
+Sun Dec 13 06:40:30 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
-	* id.c, template/id.h.tmpl: ditto.
+	* lib/ostruct.rb: Have OpenStruct#dig raise if argument is not a
+	  symbol
+	  nor a string. See [#11762]
 
-	* test/ruby/test_optimization.rb: test for this changes.
+Sun Dec 13 00:05:42 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Tue Sep 25 09:59:26 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_insnhelper.c (vm_call_method_missing): method_missing should
+	  not be refined.
+	  [ruby-core:72080] [Bug #11809]
 
-	* insns.def (invokesuper): klass in cfp is not valid in at_exit and
-	  END blocks.  [ruby-core:47680] [Bug #7064]
+Sat Dec 12 23:00:17 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Tue Sep 25 08:11:11 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* ext/nkf/nkf-utf8/nkf.c: Merge nkf 2.1.4.
 
-	* iseq.c (rb_iseq_defined_string): the index of defined_strings must
-	  be the value of type - 1.
+Sat Dec 12 18:52:26 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Sep 24 17:36:51 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* object.c (rb_obj_dig): raise TypeError if an element does not
+	  have #dig method.  [ruby-core:71798] [Bug #11762]
 
-	* compile.c (defined_expr), insns.def (defined): share single frozen
-	  strings.  [EXPERIMENTAL] [ruby-core:47558][Feature #7035]
+Sat Dec 12 17:59:07 2015  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-	* iseq.c (rb_iseq_defined_string): make expression strings.
+	* test/ruby/test_regexp.rb: Add test cases for `$KCODE` and `$=` warning
+	  [Misc #11770][ruby-dev:49398]
 
-Mon Sep 24 11:22:36 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Sat Dec 12 17:11:57 2015  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-	* tool/merger.rb: add --ticket option to add ticket number.
+	* doc/NEWS-0.2.2: add description about incompatible change in Hash
+	  duplicated key overriding policy. [Bug #10315] [Bug #11501]
 
-Sun Sep 23 21:51:59 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Dec 12 07:44:38 2015  Eric Wong  <e@80x24.org>
 
-	* lib/mkmf.rb (String#unspace): unescape with backslashes.  normal
-	  makes need to escape spaces with backslashes.  nmake is not the
-	  case.  [Bug #7036]
+	* io.c (do_io_advise): do not raise on ENOSYS
+	* test/ruby/test_io.rb (test_advise): do not skip on Errno::ENOSYS
+	  (test_advise_pipe): ditto
+	  [ruby-core:72066] [Feature #11806]
 
-	* lib/mkmf.rb (create_makefile): use timestamp file dependencies for
-	  directories.
+Sat Dec 12 07:05:29 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/mkmf.rb: unexpand macros.
+	* enc/windows_1252.c: separate from ISO-8859-1 to fix 0x80..0x9e
+	  range.  [ruby-core:64049] [Bug #10097]
 
-	* lib/mkmf.rb (LIBPATHFLAG): no needs to escape library path here.
+Fri Dec 11 23:33:40 2015  Yusuke Endoh  <mame@ruby-lang.org>
 
-	* lib/mkmf.rb (MakeMakefile#configuration): make prefix paths
-	  internal to deal with in Makefile.
+	* sample/trick2015/: added the award-winning entries of TRICK 2015.
+	  See https://github.com/tric/trick2015 for the contest outline.
 
-	* lib/mkmf.rb (MakeMakefile#mkintpath): not a global function now.
+Fri Dec 11 17:59:05 2015  Eric Wong  <e@80x24.org>
 
-Sun Sep 23 02:33:37 2012  Benoit Daloze  <eregontp@gmail.com>
+	* insns.def (opt_case_dispatch): avoid converting Infinity
+	* test/ruby/test_optimization.rb (test_opt_case_dispatch_inf): new
+	  [ruby-dev:49423] [Bug #11804]'
 
-	* complex.c: Fix examples of r36993.
-	  Keep the simple definition, mathematics define the result.
-	  Based on patch by Robin Dupret. Fixes #188 on github.
+Fri Dec 11 16:48:57 2015  Eric Wong  <e@80x24.org>
 
-Sat Sep 22 07:15:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+	* hash.c (rb_num_hash_start): avoid pathological behavior
+	  [ruby-core:72028] [Feature #11405]
 
-	* ext/ripper/lib/ripper.rb:
-	  Match sample output to Ripper.sexp from current trunk version.
-	  [Bug #6929]
+Fri Dec 11 11:58:46 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Sep 20 23:05:11 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* NEWS: Mentioned rubygems-2.5.1
 
-	* thread_pthread.c (native_cond_initialize): destroy condattr
-	  after using it. Patch by Stanislav Sedov. Thank you.
-	  [Bug #7041] [ruby-core:47619]
+Fri Dec 11 11:52:39 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Sep 20 22:53:02 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* lib/rubygems: Update to RubyGems 2.5.1
+	* test/rubygems: ditto.
 
-	* thread_pthread.c (native_cond_initialize): clean up #ifdef condition.
+Fri Dec 11 11:38:14 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Sep 20 16:42:44 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* compile.c (iseq_compile_each, ibf_load_object_hash): rehash
+	  case-dispatch hash to reduce collisions.
+	  http://d.hatena.ne.jp/ku-ma-me/20151210
 
-	* lib/drb/ssl.rb (DRb::DRbSSLSocket::SSLConfig::DEFAULT): add
-	  SSLTmpDhCallback for configuration option.
+Fri Dec 11 03:44:43 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/drb/ssl.rb (setup_ssl_context): copy the value of tmp_dh_callback.
+	* object.c (rb_inspect): dump inspected result with rb_str_escape()
+	  instead of raising Encoding::CompatibilityError. [Feature #11801]
 
-	* test/drb/ut_array_drbssl.rb: set tmp_dh_callback to suppress warning.
+	* string.c (rb_str_escape): added to dump given string like
+	  rb_str_inspect without quotes and always dump in US-ASCII
+	  like rb_str_dump.
 
-	* test/drb/ut_drb_drbssl.rb: ditto.
+Thu Dec 10 14:59:59 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Sep 20 10:56:08 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* test/ruby/test_gc.rb (test_expand_heap): relax condition (1->2).
 
-	* test/drb/ut_drb.rb: revert a part of r36987, and get rid of a warning
-	  with another method.  if the substitution is removed, the ExtSrv
-	  object will be GC'ed and some tests will be blocked.
+Thu Dec 10 14:15:59 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Sep 20 07:20:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+	* cont.c: fix a double word typo.
+	  [Bug #11313][ruby-core:69749]
 
-	* complex.c: Examples for Complex Documentation.
-	  Patch by Robin Dupret.
-	  Fixes #184 on github.
+Thu Dec 10 14:13:34 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Sep 20 07:15:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+	* ext/tk/lib/multi-tk.rb: fix typos.
+	  [Bug #11764][ruby-core:71800]
 
-	* ext/ripper/lib/ripper.rb: Documentation for Ripper.
-	  +:void_stmt+ is meaningless
-	  [Bug #6929] [ruby-core:47507]
+Thu Dec 10 11:33:34 2015  Eric Wong  <e@80x24.org>
 
-Thu Sep 20 07:05:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+	* compile.c (iseq_compile_each): reduce needless rb_str_dup
+	  [ruby-core:72018] <5668DB6E.8000101@ruby-lang.org>
 
-	* lib/csv.rb (Object#CSV, Array#to_csv, String#parse_csv):
-	  Examples and documentation for CSV.
-	  [Bug #6880] [ruby-core:47218]
+Thu Dec 10 09:32:51 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Sep 20 00:42:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/mkmf.rb, lib/shellwords.rb: disable frozen-string-literal.
+	  [ruby-core:72011] [Bug #11800]
 
-	* array.c (take_items), enum.c (enum_zip): raise TypeError at
-	  non-enumerable objects, not NoMethodError.  [ruby-dev:46145]
-	  [Bug #7038]
+Thu Dec 10 06:33:39 2015  Eric Wong  <e@80x24.org>
 
-	* vm_eval.c (rb_check_block_call): check_funcall variant with block
-	  function.
+	* marshal.c (memsize_dump_arg): remove NULL check
+	  (memsize_load_arg): ditto
 
-Tue Sep 18 17:51:29 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Dec 10 05:53:18 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/openssl/ossl_ssl.c (ossl_sslctx_attrs): add npn_select_db to
-	  suppress warning: instance variable @npn_select_cb not initialized
+	* tool/mkconfig.rb: rbconfig must not be frozen-string-literal to
+	  expand CONFIG hash.  [ruby-core:72006] [Bug #11798]
 
-Sun Sep 16 17:47:00 2012  Eric Hodel  <drbrain@segment7.net>
+Thu Dec 10 05:03:51 2015  Eric Wong  <e@80x24.org>
 
-	* tool/change_maker.rb:  Update svn detection for subversion 1.7's
-	  single .svn directory.
+	* ext/socket/ifaddr.c (ifaddr_mark): remove empty function
+	  (ifaddr_type): pass zero to rb_data_type_t.function.dmark
 
-Sun Sep 16 11:39:12 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Dec 10 04:49:16 2015  Eric Wong  <e@80x24.org>
 
-	* io.c (io_set_read_length): if the read length equals to the buffer
-	  string size then nothing to do.  or ensure the string modifiable
-	  before setting the length only when the former is shorter.  based on
-	  the patch in [ruby-core:47541] by Hiroshi Shirosaki.
-	  [ruby-core:46586] [Bug #6764]
+	* proc.c (bm_free): remove, use default free
+	  (method_data_type): use RUBY_TYPED_DEFAULT_FREE
 
-Sun Sep 16 08:57:52 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Dec 10 02:01:41 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* configure.in (strict_warnflags): separate strict flags from
-	  warnflags only for core.  [ruby-dev:46105]
+	* compile.c (iseq_compile_each): do not add debug information
+	  without --debug or --debug=frozen-string-literal option
+	  because String#dup slows down with debug information.
+	  [Feature #11725]
 
-Sun Sep 16 08:16:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* NEWS: apply about it.
 
-	* .editorconfig: add.  [ruby-core:47548] [Feature #7030]
+	* test/ruby/test_rubyoptions.rb: catch up this fix with refactoring.
 
-Sat Sep 15 01:56:40 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Dec 10 00:06:56 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/nkf/nkf-utf8/nkf.c: Merge upstream: 50a383c84.
-	  [ruby-dev:46128] [Bug #7005]
+	* iseq.c: rename methods
+	  RubyVM::InstructionSequence#to_binary_format -> #to_binary
+	  RubyVM::InstructionSequence.from_binary_format -> .load_from_binary
+	  RubyVM::InstructionSequence.from_binary_format_extra_data ->
+	                             .load_from_binary_extra_data
 
-Sat Sep 15 00:20:04 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* iseq.c: fix document of iseq.to_binary.
+	  [Fix GH-1134]
 
-	* ext/nkf/nkf.c (rb_nkf_convert): suppress warning.
+	* sample/iseq_loader.rb: catch up this change.
 
-Fri Sep 14 04:05:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+	* test/lib/iseq_loader_checker.rb: ditto.
 
-	* array.c (rb_ary_diff, rb_ary_uniq):
-	  Enhance documentation for array uniqueness
-	  Based on a patch by Robin Dupret
-	  [Bug #6872] [ruby-core:47209]
+Wed Dec  9 17:02:03 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Sep 14 03:30:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+	* regparse.h (SET_NTYPE): get rid of breaking strict aliasing.
+	  patch by Zarko Todorovski in [ruby-core:71953].  [Bug #11790]
 
-	* array.c (rb_ary_select):
-	  Update documentation for Array#select
-	* enum.c (enum_find_all, enum_reject):
-	  Update documentation for Enumerable#find_all and Enumerable#reject
-	  Based on a patch by Jeff Saracco
-	  [Bug #6908] [ruby-core:47285] [Fixes #166 on github]
+Wed Dec  9 16:10:37 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Sep 14 00:20:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+	* vm.c (rb_vm_cref_in_context): Module#define_method in non-class
+	  expression should be public.
+	  [Bug #11754]
 
-	* signal.c (rb_f_kill):
-	  Update documentation for Process.kill to reflect kill(2)
-	  Patch by Richo Healey
+	* test/ruby/test_method.rb: add a test.
 
-Thu Sep 13 21:40:49 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+Wed Dec  9 14:45:27 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/securerandom.rb (SecureRandom.random_bytes):
-	  Use 64bit value as pointer for Windows x64 to fix SystemCallError.
+	* gc.c (gc_mark_stacked_objects): fix typo.
+	  reported by XIE Zhibang. [Bug #11763]
 
-	* lib/securerandom.rb (SecureRandom.lastWin32ErrorMessage):
-	  Set proper encoding to avoid invalid byte sequence error.
-	  [ruby-core:47451] [Bug #6990]
+Wed Dec  9 14:37:51 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Thu Sep 13 11:20:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+	* doc/syntax/refinements.rdoc: remove outdated description.
 
-	* lib/optparse.rb: Remove unreachable email address from documentation
-	  [Bug #6996] [ruby-core:47459]
+Wed Dec  9 09:58:09 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Sep 13 11:20:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+	* ext/**/*.c (*_memsize): same as r52986 for extensions.
 
-	* lib/xmlrpc.rb: Documentation for XMLRPC
-	* lib/xmlrpc/datetime.rb: ditto.
-	* lib/xmlrpc/parser.rb: ditto.
-	* lib/xmlrpc/client.rb: ditto.
-	* lib/xmlrpc/utils.rb: ditto.
-	* lib/xmlrpc/README.rdoc: ditto.
-	* lib/xmlrpc/create.rb: ditto.
-	* lib/xmlrpc/base64.rb: ditto.
-	* lib/xmlrpc/config.rb: ditto.
-	* lib/xmlrpc/httpserver.rb: ditto.
-	* lib/xmlrpc/server.rb: ditto.
-	* lib/xmlrpc/marshal.rb: ditto.
-	* lib/xmlrpc/README.txt: ditto.
-	  [Bug #6909] [ruby-core:47286]
+Wed Dec  9 09:46:19 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Sep 13 10:22:11 2012  Takashi Toyoshima  <toyoshim@gmail.com>
+	* .gitignore: ignored ISeq binary format.
 
-	* configure.in: Don't use PIE on Haiku because loader support is not
-	  enough.
+Wed Dec  9 09:34:41 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Sep 13 08:20:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+	* *.c (*_memsize): do not check ptr.
+	  NULL checking is finished Before call of memsize functions.
+	  See r52979.
 
-	* lib/shellwords.rb: Documentation for Shellwords.
+Wed Dec  9 09:25:29 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Sep 13 08:00:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+	* test/net/smtp/test_response.rb: use Test::Unit. We should use Test::Unit
+	  without rubygems and rdoc.
 
-	* ext/ripper/lib/ripper.rb: Documentation for Ripper.
-	* ext/ripper/lib/ripper/lexer.rb: ditto.
-	* ext/ripper/lib/ripper/sexp.rb: ditto.
-	* ext/ripper/lib/ripper/filter.rb: ditto.
-	* ext/ripper/lib/ripper/core.rb: ditto.
-	  [Bug #6929] [ruby-core:47309]
+Wed Dec  9 06:26:23 2015  Colin Kelley <colindkelley@gmail.com>
 
-Wed Sep 12 22:59:07 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/uri/generic.rb: enable frozen_string_literal
+	  (split_userinfo): remove explicit .freeze for string literals
+	  (check_path): ditto
+	  (query): ditto
+	  (fragment): ditto
+	  (to_s): ditto
+	  [ruby-core:71910] [Bug #11759]
 
-	* vm_insnhelper.c (vm_method_missing, vm_call_method): reuse arguments
-	  on the VM stack and get rid of ALLOCA.
+Wed Dec  9 06:25:47 2015  Eric Wong  <e@80x24.org>
 
-Wed Sep 12 22:45::00 2012  Zachary Scott  <zzak@ruby-lang.org>
+	* test/uri/test_generic.rb (to_s): new test
+	  [ruby-core:71820]
 
-	* ext/pathname/lib/pathname.rb: Documentation for Pathname.
-	* ext/pathname/pathname.c: ditto.
-	  [Bug #6947] [ruby-core:47354]
+Wed Dec  9 02:18:52 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Sep 10 10:19:34 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* compile.c (ibf_dump_memsize): should check NULL.
 
-	* enc/depend: fixed wrong change in a part of r34802.
+Wed Dec  9 01:46:35 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Sun Sep  9 22:02:50 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* string.c (rb_str_init): now accepts new option parameter `encoding'.
+	  [Feature #11785]
 
-	* ext/socket/basicsocket.c (rsock_bsock_send):
-	  avoid unnecessary select() calls before doing I/O
-	  Patch by Eric Wong. [Feature #4538] [ruby-core:35586]
-	* ext/socket/init.c (rsock_s_recvfrom): ditto.
-	* ext/socket/init.c (rsock_s_accept): ditto.
-	* ext/socket/udpsocket.c (udp_send): ditto.
-	* io.c (io_fflush): ditto.
-	* io.c (io_binwrite): ditto.
-	* io.c (rb_io_syswrite): ditto.
+Wed Dec  9 00:52:37 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Sep 10 01:38:51 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* file.c (rb_stat_wr, rb_stat_ww): call get_stat only once and
+	  reduce checking struct.  patch by Yuki Kurihara in
+	  [ruby-core:71949].  [Misc #11789]
 
-	* io.c (nogvl_close, maygvl_close, nogvl_fclose, maygvl_fclose):
-	  suppress integer <-> pointer cast warnings.
-	  [Feature #4570] [ruby-core:35711]
+Wed Dec  9 00:24:33 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Sep 10 01:36:00 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* compile.c (iseq_ibf_dump): dump extra data just string length.
 
-	* io.c (rb_io_close): notify fd close before releasing gvl.
-	* io.c (fptr_finalize): modify fptr->mode before releasing gvl.
-	  remove unnecessary rb_thread_fd_close().
-	  [Feature #4570] [ruby-core:35711]
+	* sample/iseq_loader.rb: add using
+	  RubyVM::InstructionSequence.from_binary_format_extra_data method
+	  (commented out).
 
-Mon Sep 10 00:16:34 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Mon Dec  9 00:21:19 2015  Yuki Nishijima  <mail@yukinishijima.net>
 
-	* process.c: exec() requires to be single threaded also on Haiku.
-	  by Takashi Toyoshima <toyoshim@gmail.com>
-	  https://github.com/ruby/ruby/pull/178
+	* gems/bundled_gems: Upgrade the did_you_mean gem to 1.0.0.rc1
 
-Sun Sep  9 21:21:15 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Wed Dec  9 00:17:49 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/thread.rb (Queue#pop): Fixed double registration issue when
-	  mutex.sleep is interrupted. [Bug #5258] [ruby-dev:44448]
-	* lib/thread.rb (SizedQueue#push): ditto.
+	* compile.c (ibf_load_setup): cast to int.
 
-	* test/thread/test_queue.rb (test_sized_queue_and_wakeup,
-	test_queue_pop_interrupt, test_sized_queue_pop_interrupt,
-	test_sized_queue_push_interrupt): new tests.
+Wed Dec  9 00:13:09 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Sep  9 20:20:31 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* compile.c (ibf_setup_load): rename to ibf_load_setup().
 
-	* lib/sync.rb (Sync_m#sync_lock): Fixed wakeup/raise unsafe code.
-	  Patched by Masaki Matsushita. [Bug #5355] [ruby-dev:44521]
+	* compile.c (iseq_load_setup): check binary format.
 
-	* test/thread/test_sync.rb (test_sync_lock_and_wakeup,
-	  test_sync_upgrade_and_wakeup, test_sync_lock_and_raise):
-	  new test.
+Tue Dec  8 23:30:07 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-Sun Sep  9 18:39:46 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* test/io/console/test_io_console.rb (run_pty): Avoid waiting twice
+	  for a process. Fix Errno::ECHILD in TestIO_Console#test_close and
+	  TestIO_Console#test_sync.
 
-	* include/ruby/intern.h (rb_thread_blocking_region): Added
-	  a comment of recommended alternative way.
+Tue Dec  8 23:05:47 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Sep  9 18:37:05 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* compile.c (iseq_ibf_dump): fix for clang type checker.
 
-	* lib/sync.rb (Sync_m): Removed RCS_ID.
+Tue Dec  8 23:04:02 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Sep  9 18:21:03 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* iseq.c (iseq_s_load): fix mysterious bug.
 
-	* test/ruby/test_io.rb (test_advise_pipe): new test to check
-	  io.advise() against anonymous io object don't make crash.
-	  made by Eric Wong. [Bug #6081] [ruby-core:42880]
+Tue Dec  8 22:31:58 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Sep  9 16:47:12 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* introduce new ISeq binary format serializer/de-serializer
+	  and a pre-compilation/runtime loader sample.
+	  [Feature #11788]
 
-	* io.c (nogvl_close, maygvl_close, nogvl_fclose, maygvl_fclose):
-	  new functions.
-	* io.c (fptr_finalize): release GVL if possible.
-	  Patched by Eric Wong. [Feature #4570] [ruby-core:35711]
+	* iseq.c: add new methods:
+	  * RubyVM::InstructionSequence#to_binary_format(extra_data = nil)
+	  * RubyVM::InstructionSequence.from_binary_format(binary)
+	  * RubyVM::InstructionSequence.from_binary_format_extra_data(binary)
 
-Sun Sep  9 16:08:48 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* compile.c: implement body of this new feature.
 
-	* io.c (io_bufread): removed unnecessary rb_thread_wait_fd().
-	  Patch by Eric Wong. [Bug #6629] [ruby-core:45789]
-	* io.c (rb_io_sysread): ditto.
-	* io.c (copy_stream_fallback_body): ditto.
+	* load.c (rb_load_internal0), iseq.c (rb_iseq_load_iseq):
+	  call RubyVM::InstructionSequence.load_iseq(fname) with
+	  loading script name if this method is defined.
 
-Sun Sep  9 15:21:52 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	  We can return any ISeq object as a result value.
+	  Otherwise loading will be continue as usual.
 
-	* thread.c (rb_mutex_lock): stop multiple threads use
-	  pthread_cond_timedwait() concurrently. [Bug #6278] [ruby-core:44275]
+	  This interface is not matured and is not extensible.
+	  So that we don't guarantee the future compatibility of this method.
+	  Basically, you shouldn't use this method.
 
-Sat Sep  8 18:52:22 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* iseq.h: move ISEQ_MAJOR/MINOR_VERSION (and some definitions)
+	  from iseq.c.
 
-	* internal.h (struct rb_classext_struct): move allocator function into
-	  rb_classext_t from ordinary method table.  [ruby-dev:46121]
-	  [Feature #6993]
+	* encoding.c (rb_data_is_encoding), internal.h: added.
 
-	* object.c (rb_obj_alloc): call allocator function directly.
+	* vm_core.h: add several supports for lazy load.
+	  * add USE_LAZY_LOAD macro to specify enable or disable of
+	    this feature.
+	  * add several fields to rb_iseq_t.
+	  * introduce new macro rb_iseq_check().
 
-	* vm_method.c (rb_define_alloc_func, rb_undef_alloc_func)
-	  (rb_get_alloc_func): use allocator function in rb_classext_t.
+	* insns.def: some check for lazy loading feature.
 
-Fri Sep  7 01:21:51 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_insnhelper.c: ditto.
 
-	* ext/extmk.rb (extmake), lib/mkmf.rb (have_framework): fix splitting
-	  options with an argument, not using NUL as special character.
-	  [ruby-core:47447] [Bug #6987]
+	* proc.c: ditto.
 
-Thu Sep  6 14:49:49 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm.c: ditto.
 
-	* .gdbinit (rp): FLONUM support.
+	* test/lib/iseq_loader_checker.rb: enabled iff suitable
+	  environment variables are provided.
 
-	* include/ruby/ruby.h (ruby_special_consts): define FLONUM constants
-	  always, so that they are available from gdb.
+	* test/runner.rb: enable lib/iseq_loader_checker.rb.
 
-	* include/ruby/ruby.h (RB_FLOAT_TYPE_P): merge FLONUM and non-FLONUM
-	  versions.  inline TYPE() comparison and FLONUM_P() should be
-	  optimized away on non-FLONUM.
+	* sample/iseq_loader.rb: add sample compiler and loader.
 
-Thu Sep  6 08:20:55 2012  Ryan Davis  <ryand-ruby@zenspider.com>
+	    $ ruby sample/iseq_loader.rb [dir]
 
-	* lib/minitest/*: Imported minitest 3.4.0 (r7762)
-	* test/minitest/*: ditto
+	  will compile all ruby scripts in [dir].
+	  With default setting, this compile creates *.rb.yarb files
+	  in same directory of target .rb scripts.
 
-Wed Sep  5 19:20:53 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	    $ ruby -r sample/iseq_loader.rb [app]
 
-	* parse.y (rb_warn4S): renamed from rb_warn4(), because the case in
-	  r36911 takes a string.
+	  will run with enable to load compiled binary data.
 
-	* parse.y (rb_warn4S): use ripper_warnS() for ripper.
+Tue Dec  8 21:21:16 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-	* parse.y (ripper_warnS): now it is used.
+	* NEWS: mention about Enumerator::Lazy#grep_v.
+	  [ruby-core:71845] [Feature #11773]
 
-Wed Sep  5 15:51:52 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+Tue Dec  8 17:36:36 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* .travis.yml (notifications): [experimental] update notification
-	  template.
+	* string.c: removed unused variable
 
-Wed Sep  5 15:21:12 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Tue Dec  8 16:23:40 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* parse.y (rb_warn4): added as a rb_warn variant to warn with explicit
-	  source file name and line in parse.y.
+	* enumerator.c (lazy_grep_v): add Enumerator::Lazy#grep_v as well
+	  as Enumerable, to enumerate lazily.
+	  [ruby-core:71845] [Feature #11773]
 
-	* parse.y (warn_unused_var): use rb_warn4 to suppress warning on ripper.
+Tue Dec  8 14:27:07 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Sep  5 13:30:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* error.c (name_err_local_variables): new method
+	  NameError#local_variables for internal use only.
+	  [Feature #11777]
 
-	* dir.c (glob_make_pattern): names under recursive need to be single
-	  basenames to match for each name.  [ruby-core:47418] [Bug #6977]
+Tue Dec  8 14:20:38 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Sep  4 20:55:17 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+	* marshal.c (w_objivar): skip internal instance variables in
+	  T_OBJECT too.
 
-	* test/ruby/envutil.rb (EnvUtil#invoke_ruby): show Timeout::Error
-	  instead of IOError if the timeout has expired.
+Tue Dec  8 12:58:04 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* test/test_pstore.rb
-	  (PStoreTest#test_pstore_files_are_accessed_as_binary_files):
-	  increase timeout because this test is slow on Windows.
-	  [ruby-core:47402] [Bug #6965]
+	* test/io/console/test_io_console.rb (test_getpass): s.getpass
+	  should be tested. Narrow ensure block. This reverts r52911.
+	  [Bug #11780] [ruby-dev:49412]
 
-Tue Sep  4 11:28:57 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+Tue Dec  8 10:40:21 2015  Eric Wong  <e@80x24.org>
 
-	* vm_eval.c (ruby_eval_string_from_file_protect): initializer
-	  element is not computable at load time.
+	* benchmark/bm_vm2_case_lit.rb: new benchmark
+	* compile.c (case_when_optimizable_literal): add nil/true/false
+	* insns.def (opt_case_dispatch): ditto
+	* vm.c (vm_redefinition_check_flag): ditto
+	* vm.c (vm_init_redefined_flag): ditto
+	* vm_core.h: ditto
+	* object.c (InitVM_Object): define === explicitly for nil/true/false
+	* test/ruby/test_case.rb (test_deoptimize_nil): new test
+	* test/ruby/test_optimization.rb (test_opt_case_dispatch): update
+	  (test_eqq): new test
+	  [ruby-core:71923] [Feature #11769]
+	  Original patch by Aaron Patterson <tenderlove@ruby-lang.org>
 
-Tue Sep  4 07:48:35 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+Tue Dec  8 10:19:02 2015  Jake Worth  <jakeworth82@gmail.com>
 
-	* test/openssl/test_asn1_rb:
-	  test/openssl/test_ssl_session.rb:
-	  test/openssl/test_x509name.rb:
-	  test/openssl/test_buffering.rb:
-	  test/openssl/test_x509cert.rb:
-	  test/openssl/test_ssl.rb: Refactor code that leads to warnings on
-	  Ruby CI.
+	* lib/optparse.rb: fix double word typo in the document.
+	  [Misc #10608] [Fix GH-1126]
 
-Tue Sep  4 07:02:56 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+Tue Dec  8 09:03:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/openssl/utils.rb: Use DSS1 as DSA signature digest for all
-	  OpenSSL versions < 1.0.0.
-	  [Feature #6946] [ruby-core:47405]
+	* ext/date/date_core.c (d_lite_lshift): should check the argument
+	  before negation.
 
-Mon Sep  3 21:22:37 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Dec  8 08:56:16 2015  Eric Wong  <e@80x24.org>
 
-	* include/ruby/ruby.h (rb_float_value): suppress warnings.
-	  [ruby-core:47406][Bug #6971]
+	* insns.def (opt_case_dispatch): check Float#=== redefinition
+	* test/ruby/test_optimization.rb (test_opt_case_dispatch): new
+	  [ruby-core:71920] [Bug #11784]
 
-Mon Sep  3 14:49:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Dec  8 03:56:05 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/matrix.rb (Vector#magnitude): accumulate squares of absolute
-	  values to fix for complex vector.  [ruby-dev:46100] [Bug #6966]
+	* test/lib/iseq_loader_checker.rb: add iseq dumper/loader checker.
+	  If you enable this checker (remove `#' in test/runner.rb),
+	  you can see comparison results between an original iseq disassembed
+	  result and dumped and loaded iseq disassembed result.
 
-Mon Sep  3 10:09:36 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	  There are several bugs around there, because of inexact stack depth
+	  calculation. Now, I leave these bugs because they are not critical
+	  and difficult to solve completely.
 
-	* ext/openssl/extconf.rb: Detect OpenSSL_FIPS macro
-	  ext/openssl/ossl.c: Expose OpenSSL::OPENSSL_FIPS constant to
-	  indicate whether OpenSSL runs in FIPS mode.
-	  test/openssl/test_pkey_dh.rb: Generate 256 bit keys for
-	  non-FIPS installations to improve test performance (e.g. for
-	  rubyci).
-	  test/openssl/utils.rb: Replace DSS1 as certificate signature
-	  digest with SHA1 for FIPS installations when using DSA by
-	  introducing TestUtils::DSA_SIGNATURE_DIGEST.
-	  test/openssl/test_x509cert.rb:
-	  test/openssl/test_x509crl.rb:
-	  test/openssl/test_x509req.rb: Use DSA_SIGNATURE_DIGEST
-	  NEWS: Introduce OpenSSL::OPENSSL_FIPS
+	* test/runner.rb: require test/lib/iseq_loader_checker.rb but
+	  disabled at default (commented out).
 
-	  These changes allow running the OpenSSL tests in FIPS mode
-	  while keeping a high performance for non-FIPS installations.
-	  Introduction of OpenSSL::OPENSSL_FIPS allows for applications
-	  to react to special requirements when using OpenSSL in FIPS mode.
-	  [Feature #6946] [ruby-core:47345]
+Tue Dec  8 03:45:47 2015  Eric Wong  <e@80x24.org>
 
-Sun Sep  2 21:46:28 2012  Martin Bosslet <Martin.Bosslet@googlemail.com>
+	* doc/extension.rdoc: warn about kwargs performance in C
+	  [Feature #11339] [ci skip]
 
-	* test/openssl/utils.rb: Use a cached DH key instead of generating a
-	  new one each time.
+Tue Dec  8 03:44:51 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Sep  2 05:41:28 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* iseq.c (iseq_load): disable peephole optimization option
+	  because apply it multiple times change the sequence.
+	  (iseq != peephole_optimize(load(iseq.to_a)))
 
-	* lib/webrick/ssl.rb (WEBrick::Config::SSL): add new key
-	  SSLTmpDhCallback to set SSLContext#tmp_dh_callback.
+Tue Dec  8 03:43:21 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/webrick/ssl.rb (WEBrick::GenericServer#setup_ssl_context):
-	  follow above.
+	* compile.c (rb_iseq_build_from_ary): do not allocate table
+	  if table_size is 0.
 
-Sat Sep  1 18:50:50 2012  Akinori MUSHA  <knu@iDaemons.org>
+Tue Dec  8 03:30:34 2015  Eric Wong  <e@80x24.org>
 
-	* lib/set.rb (#initialize_copy, #eql): Use instance_variable_get
-	  instead of instance_eval.
+	* ext/socket/unixsocket.c (unix_send_io): document args
+	  (unix_recv_io): ditto
+	* test/socket/test_unix.rb (test_fd_passing_class_mode): added
 
-Fri Aug 31 21:47:56 2012  Kouhei Sutou  <kou@cozmixng.org>
+Tue Dec 08 02:21:35 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/test/unit/test-unit.gemspec: Make test/unit default gem.
-	  [Feature #6875] [ruby-dev:46051]
+	* iseq.c (iseq_translate): at the end of constructing an iseq,
+	  call RubyVM::InstructionSequence.translate(iseq) if this method
+	  is defined. If the return value is also an object of
+	  RubyVM::InstructionSequence, then use it instead of created one.
 
-Fri Aug 31 18:35:02 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	  For example, this method is useful to test iseq dumper/loader
+	  such as RubyVM::InstructionSequence#to_a and rb_iseq_load().
 
-	* ext/openssl/extconf.rb: Check existence of OPENSSL_NPN_NEGOTIATED.
-	  ext/ossl_ssl.c: Support Next Protocol Negotiation. Protocols to be
-	  advertised by the server can be set in the SSLContext by using
-	  SSLContext#npn_protocols=, protocol selection on the client is
-	  supported by providing a selection callback with
-	  SSLContext#npn_select_cb. The protocol that was finally negotiated
-	  is available through SSL#npn_protocol.
-	  test/openssl/test_ssl.rb: Add tests for Next Protocol Negotiation.
-	  NEWS: add news about NPN support.
-	  [Feature #6503] [ruby-core:45272]
+	  Because this method is for such internal experimental usage,
+	  the interface is not matured. For example, this interface has
+	  no extensibility. Two or more translators can not run
+	  simultaneously.
 
-Fri Aug 31 17:38:43 2012  Akinori MUSHA  <knu@iDaemons.org>
+	  So that we don't guarantee future compatibility of this method.
+	  Basically, do not use this method.
 
-	* lib/set.rb (Set#{each,reject!,select!}, SortedSet#each): Pass
-	  the original block through instead of creating one that only
-	  yields the passed argument.
+Tue Dec  8 01:57:13 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-Fri Aug 31 16:23:20 2012  Akinori MUSHA  <knu@iDaemons.org>
+	* ext/psych/*: update psych to 2.0.16
+	* test/psych/*: ditto
 
-	* lib/ipaddr.rb: Introduce several new error classes where only
-	  ArgumentError and StandardError were used.  IPAddr::Error is
-	  their common ancestor class that inherits from ArgumentError for
-	  backward compatibility.  Submitted by Jon Daniel.  Fixes #173 on
-	  GitHub.
+Mon Dec  7 23:45:20 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Aug 31 14:51:27 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* string.c: introduce String#+@ and String#-@ to control
+	  String mutability.
+	  [Feature #11782]
 
-	* test/bigdecimal/test_bigdecimal.rb (TestBigDecimal#test_to_f): added
-	  for previous commit.
+Mon Dec  7 23:39:49 2015  Ben Miller  <bjmllr@gmail.com>
 
-Fri Aug 31 14:32:05 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* parse.y: add heredoc <<~ syntax.  [Feature #9098]
 
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_to_f): use self's sign to
-	  determine 0.0 and Inf's sign instead of internal double value's.
-	  Reported by phasis68 (Heesob Park) at [ruby-core:47381] [Bug #6955]
+Mon Dec  7 23:06:16 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-Fri Aug 31 14:31:17 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* prelude.rb (IO#read_nonblock): [DOC] add missing options to
+	  call-seq.  [ruby-core:71627] [Bug #11730]
 
-	* template/id.h.tmpl, tool/id2token.rb: make id.h independent from
-	  parse.h, and make parse.c dependent on it instead.
+Mon Dec  7 15:50:50 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Fri Aug 31 14:27:39 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* .gitignore: added cygruby*.def for Cygwin
 
-	* lib/mkmf.rb (create_makefile): fix race conditions at install-ext.
-	  target files need to depend on destination directory timestamp
-	  files, not phony targets.
+Sun Dec  6 19:52:31 2015  Eric Wong  <e@80x24.org>
 
-Fri Aug 31 14:03:45 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* include/ruby/intern.h (rb_autoload): deprecate
+	* internal.h (rb_autoload_str): declare
+	* load.c (rb_mod_autoload): use rb_autoload_str
+	* variable.c (rb_autoload): become compatibility wrapper
+	  (rb_autoload_str): hoisted out from old rb_autoload
+	  [ruby-core:71369] [Feature #11664]
 
-	* vm_trace.c (clean_hooks): do not access freed memory.
+Sun Dec  6 18:25:22 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* vm_trace.c (rb_threadptr_exec_event_hooks): fix uninitialized state
-	  when no events is executed.
+	* test/webrick/test_cgi.rb (TestWEBrickCGI#test_cgi): gave up the test
+	  of binary path info test on Windows because the test had passed
+	  occasionally as the comment said.
 
-Thu Aug 30 18:21:51 2012  Tanaka Akira  <akr@fsij.org>
+Sun Dec  6 15:25:06 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* io.c (rb_io_close): call rb_last_status_clear.
+	* ext/io/console/console.c (console_getpass): add IO#getpass
+	  method.
 
-Thu Aug 30 16:17:52 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Dec  6 08:39:05 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_to_f): check underflow since
-	  strtod() sets errno to ERANGE at underflow too.  [ruby-core:47342]
-	  [Bug #6944]
+	* ext/json/json.gemspec: bump version to json 1.8.3. CRuby already contained
+	  upstream changes.
 
-Thu Aug 30 12:44:43 2012  Akinori MUSHA  <knu@iDaemons.org>
+	  https://github.com/ruby/ruby/commit/4d059bf9f5f10f3d3088de49fc87e5555db7770d
+	  https://github.com/flori/json/commit/d4c99de78905d96c3f301f48b2c789943bb3f098
 
-	* lib/set.rb (Set#{<,>,<=,>=}): Define comparison operators as
-	  shorthand for the {proper_}{subset?,superset?} methods (finally).
-	  Given a push by Alexander E. Fischer.
+	* ext/json/lib/json/version.rb: ditto.
 
-Thu Aug 30 09:21:01 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Sat Dec  5 17:48:25 2015  Lars Kanis  <lars@greiz-reinsdorf.de>
 
-	* lib/uri/ftp.rb (URI::FTP#initialize): raise InvalidURIError if "//"
-	  is not present [ruby-core:47344] [Bug #6945]
+	* tool/fake.rb: Fix cross build when srcdir is an absolute path.
 
-Thu Aug 30 07:45:12 2012  Luis Lavena  <luislavena@gmail.com>
+	* Makefile.in: PREP dependency is needed when cross build too, not
+	  "-r$(arch)-fake" to be  used before created.  [Fix GH-1125]
 
-	* test/ruby/test_file_exhaustive.rb: fix test introduced in r36811 for
-	  posix environments where HOME is not defined.  [ruby-core:47322]
+Sat Dec  5 17:26:24 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Aug 29 23:42:59 2012  Tanaka Akira  <akr@fsij.org>
+	* hash.c (env_str_new, env_path_str_new): make default string
+	  UTF-8 for the case conversion is not possible.  [Bug #8822]
 
-	* internal.h (rb_last_status_clear): declared.
+	* hash.c (get_env_cstr): convert non-ASCII string to UTF-8 string.
 
-	* process.c (rb_last_status_clear): exported.
-	  (rb_f_system): call rb_last_status_clear.
+	* hash.c (ruby_setenv): use wide char version to put environment
+	  variable to deal with non-ASCII value.
 
-	* io.c (rb_f_backquote): call rb_last_status_clear.
+Sat Dec  5 09:56:50 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Aug 29 22:01:15 2012  Tanaka Akira  <akr@fsij.org>
+	* ruby_atomic.h (ATOMIC_CAS): old value to be swapped should be
+	  same as the destination.  immediate value may need type
+	  promotion.
 
-	* process.c (rb_f_system): check failures of waitpid.
-	  [ruby-talk:398687]
+	* ruby_atomic.h (ATOMIC_SIZE_CAS): fix the argument order of
+	  InterlockedCompareExchange64.  new value and then old value is
+	  the last.
 
-Wed Aug 29 15:03:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Dec  5 09:23:34 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* configure.in (LIBDIR_BASENAME): use configured libdir value to fix
-	  --enable-load-relative on systems where libdir is not default value,
-	  overridden in config.site files.  [ruby-core:47267] [Bug #6903]
+	* random.c (fill_random_seed): fix the size to be filled, not the
+	  size of element, but the whole size of array.
 
-	* ruby.c (ruby_init_loadpath_safe): ditto.
+Sat Dec  5 06:03:54 2015  Eric Wong  <e@80x24.org>
 
-Wed Aug 29 14:34:41 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* vm.c (ruby_vm_verbose_ptr): make static
+	  (ruby_vm_debug_ptr): ditto
 
-	* addr2line.c: SIZE_MAX is defined in stdint.h, so r36755 breaks
-	  32bit FreeBSD. [ruby-core:47360] [Bug #6948]
+Sat Dec  5 00:56:29 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-Wed Aug 29 04:50:04 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* include/ruby/ruby.h (RB_OBJ_TAINT): follow-up of r52881.
+	  Turn into void expression not to use unexpected result.
+	  Fix "operands have incompatible types" error with
+	  Oracle Solaris Studio 12.x on Solaris.
 
-	* test/openssl/utils.rb
-	  test/openssl/test_pair.rb
-	  test/openssl/test_pkey_dh.rb: Use 1024 bit DH parameters to satisfy
-	  OpenSSL FIPS requirements. Patch by Vit Ondruch.
-	  [Bug #6938] [ruby-core:47326]
+Fri Dec  4 19:52:52 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Tue Aug 28 22:31:49 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+	* enc/iso_8859_13.c: Added three missing lower/upper-case
+	  character pairs (from Kimihito Matsui)
 
-	* insns.def (checkmatch): suppress warnings. [ruby-core:47339]
-	  [Bug #6930]
+Fri Dec  4 18:57:57 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Tue Aug 28 20:03:54 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* enc/iso_8859_4.c: Added missing lower/upper-case character
+	  pair (U+014A and U+014B, LATIN CAPITAL/SMALL LETTER ENG)
+	  (from Kimihito Matsui)
 
-	* configure.in: Fixing Haiku R1/alpha3 build with gcc-4.4.4.
-	  - omit ANSI standard flags to compile socket extension where
-	    anonymous union is required.
-	  - remove redundant -be flags.
-	  by Takashi Toyoshima <toyoshim@gmail.com>
-	  https://github.com/ruby/ruby/pull/168
+Fri Dec  4 16:48:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Aug 28 11:32:37 2012  Yuki Yugui Sonoda  <yugui@google.com>
+	* string.c (rb_obj_as_string): fstring should not be infected.
+	  re-apply r52872 and fix a typo.
+	  TODO: other frozen strings also may not be.
 
-	* nacl/GNUmakefile.in (.rbconfig.time): r36828 was incomplete.
-	  It did not run correctly on clean build.
+Fri Dec  4 15:21:45 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Aug 28 09:25:20 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* lib/rubygems: Update to RubyGems 2.5.0+ HEAD(fdab4c4).
+	  this version includes #1396, #1397, #1398, #1399
+	* test/rubygems: ditto.
 
-	* win32/Makefile.sub (Makefile): make to depend on common.mk, to
-	  stop and force to re-run make process when common.mk is changed.
+Fri Dec  4 11:22:40 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Aug 27 20:19:49 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+	* thread.c (rb_thread_setname): name must be ascii-compatible, as
+	  pthread APIs do not accept legacy wide char strings.
 
-	* test/etc/test_etc.rb (TestEtc#test_getgrgid): fix for non unique GID.
-	  No unixen systems guarantee that GID is unique. Etc.getgrgid would
-	  not return the first entry in the order of Etc.group for shared GID.
-	  [ruby-core:47312] [Bug #6935]
+Thu Dec  3 15:39:21 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Mon Aug 27 18:19:36 2012  Koichi Sasada  <ko1@atdot.net>
+	* lib/scanf.rb: fixed double words typo.
+	  [ci skip][fix GH-1123] Patch by @jwworth
 
-	* include/ruby/ruby.h (rb_float_value): optimize it.
-	  This technique was pointed by shinichiro.hamaji
-	  <http://shinh.skr.jp/m/?date=20120825#p02>.
+Thu Dec  3 15:37:56 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Mon Aug 27 15:08:25 2012  Yuki Yugui Sonoda  <yugui@google.com>
+	* test/ruby/test_mixed_unicode_escapes.rb: fixed typo.
+	  [fix GH-1122] Patch by @davydovanton
+	* test/ruby/test_object.rb: ditto.
+	* test/socket/test_tcp.rb: ditto.
 
-	* common.mk (vm_trace.o): Added a missing dependency.
+Thu Dec  3 15:33:08 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Aug 26 09:29:32 2012  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+	* sprintf.c (rb_str_format): fix wrong shifting position in
+	  Rational conversion when not at the beginning of the result.
+	  [ruby-core:71806] [Bug #11766]
 
-	* nacl/GNUmakefile.in (package): make package should install
-	  example.html for nacl build
+Thu Dec  3 14:22:16 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	Patch by Takashi Toyoshima <toyoshim AT gmail.com>.
+	* range.c (range_to_s): should be infected by the receiver.
+	  str2 infects by appending.  [ruby-core:71811] [Bug #11767]
 
-Sun Aug 26 09:22:33 2012  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+Thu Dec  3 11:57:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* nacl/GNUmakefile.in (CC, LD, NM, AR, AS, RANLIB, OBJDUMP, OBJCOPY)
-	  Rewrites these variables instead of PATH.
-	  NaCl port uses a toolchain which is specified by NACL_SDK_ROOT
-	  environment variable. Originally, NaCl build added the toolchain
-	  under the NACL_SDK_ROOT to the PATH. But updating PATH doesn't work
-	  on Mac.
-	  (RBCONFIG): Replaces configs with the variable updates above.
+	* configure.in: separate SET_CURRENT_THREAD_NAME, which can set
+	  the name of current thread only, and SET_ANOTHER_THREAD_NAME,
+	  which can set the name of other threads.
 
-	* configure.in: Thus it is no longer necessary to check $PATH.
+	* thread.c (rb_thread_setname): use SET_ANOTHER_THREAD_NAME.  OS X
+	  is not possible to set another thread name.
 
-	Based on a patch by Takashi Toyoshima <toyoshim AT gmail.com>.
+	* thread_pthread.c (native_set_thread_name, thread_timer): use
+	  SET_CURRENT_THREAD_NAME.
 
-Sun Aug 26 16:53:00 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Dec 02 22:57:46 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* insns.def (checkmatch): suppress warnings.  [ruby-core:47310]
-	  [Bug #6930]
+	* vm_core.h, iseq.h: remove rb_iseq_t::variable_body.
+	  Fields in rb_iseq_t::variable_body are contained by
+	  rb_iseq_t::body::mark_ary (hidden Array object).
 
-	* vm_core.h (VM_FRAME_TYPE_FINISH_P): ditto.
+	  Index 0 to 2 of mark_ary are reserved by these objects.
 
-Fri Aug 24 15:42:28 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* iseq.c: catch up this fix.
 
-	* lib/mkmf.rb (create_makefile): use timestamp for destination
-	  directories to make them before making or copying files there.
-	  [ruby-dev:46067] [Bug #6904]
+	* compile.c (rb_iseq_original_iseq): trivial rewrite.
 
-Fri Aug 24 12:40:15 2012  Luis Lavena  <luislavena@gmail.com>
+Wed Dec  2 17:19:02 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* configure.in (mingw): add shlwapi to the list of dependency
-	  libs for Windows.
-	* win32/Makefile.sub (EXTSOLIBS): ditto.
+	* iseq.h: introduce ISEQ_ORIGINAL_ISEQ() and
+	  ISEQ_ORIGINAL_ISEQ_ALLOC() macro.
 
-	* internal.h: declare internal functions rb_w32_init_file,
-	  rb_file_expand_path_internal and rb_file_expand_path_fast.
+	* compile.c: use them to access original iseq buffer.
 
-	* file.c (Init_File): invoke Windows initialization rb_w32_init_file
+	* iseq.c: ditto.
 
-	* win32/file.c (rb_file_load_path_internal): new function.
-	  Windows-specific implementation that replaces file_expand_path.
-	  [Bug #6836][ruby-core:46996]
+	* vm_core.h: rename iseq field to support this fix.
 
-	* win32/file.c (rb_w32_init_file): new function. Initialize codepage
-	  cache for faster conversion encodings lookup.
+Wed Dec  2 17:10:32 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* file.c (file_expand_path): rename to rb_file_expand_path_internal.
-	  Conditionally exclude from Windows.
+	* iseq.h: introduce ISEQ_FLIP_CNT_INCREMENT() macro.
 
-	* file.c (rb_file_expand_path_fast): new function. delegates to
-	  rb_file_expand_path_internal without performing a hit to the
-	  filesystem.
+	* compile.c (iseq_compile_each): use it.
 
-	* file.c (file_expand_path_1): use rb_file_expand_path_internal without
-	  path expansion (used by require).
-	* file.c (rb_find_file_ext_safe): ditto.
-	* file.c (rb_find_file_safe): ditto.
+	* vm_core.h: rename flip_cnt field to support this fix.
 
-	* load.c (rb_get_expanded_load_path): use rb_file_expand_path_fast.
-	* load.c (rb_feature_provided): ditto.
+Wed Dec  2 17:05:15 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* file.c (rb_file_expand_path): use rb_file_expand_path_internal with
-	  path expansion.
-	* file.c (rb_file_absolute_path): ditto.
+	* iseq.h: introduce ISEQ_COVERAGE() and ISEQ_COVERAGE_SET() macro.
 
-	* test/ruby/test_file_exhaustive.rb: new tests to exercise
-	  rb_file_expand_path_internal implementation and compliance with
-	  existing behaviors.
+	* compile.c: use them.
 
-Fri Aug 24 07:35:24 2012  Eric Hodel  <drbrain@segment7.net>
+	* iseq.c: ditto.
 
-	* lib/net/http/backward.rb (class Net):  Restored Net::HTTPSession to
-	  fix backwards-compatibility with ancient Net::HTTP.  [Bug #6889]
+	* iseq.c (rb_iseq_coverage): added.
 
-Thu Aug 23 20:58:55 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	* thread.c (update_coverage): use rb_iseq_coverage().
 
-	* common.mk: support `make id.h` without `rm .id.h.time` after
-	  `rm id.h`.
+	* vm_core.h: rename coverage field name to support this fix.
 
-Thu Aug 23 20:48:45 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed Dec  2 17:00:54 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_fixnum.rb (TestFixnum#test_singleton_method): new test.
+	* encoding.c (enc_name, rb_enc_name_list_i, rb_enc_aliases_enc_i):
+	  make fstring instead of making each copies.
 
-	* test/ruby/test_bignum.rb (TestBignum#test_singleton_method): ditto.
+Wed Dec  2 16:32:08 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* test/ruby/test_float.rb (TestFloat#test_singleton_method): ditto.
+	* iseq.h: introduce ISEQ_COMPILE_DATA() macro.
 
-	* test/ruby/test_symbol.rb (TestSymbol#test_singleton_method): ditto.
+	* compile.c, iseq.c: use ISEQ_COMPILE_DATA().
 
-Thu Aug 23 20:34:32 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* vm_core.h: rename compile_data field to support this fix.
 
-	* class.c (singleton_class_of): flonum can't have singleton class.
+Wed Dec  2 16:27:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm.c (vm_define_method): flonum can't have singleton method.
+	* encoding.c (enc_m_loader): defer finding encoding object not to
+	  be infected by marshal source.  [ruby-core:71793] [Bug #11760]
 
-Thu Aug 23 19:18:33 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* marshal.c (r_object0): enable compatible loader on USERDEF
+	  class.  the loader function is called with the class itself,
+	  instead of an allocated object, and the loaded data.
 
-	* common.mk (win32/*): macro RUBY_H_INCLUDES is not defined there,
-	  so need to move dependency rules under the definition of it.
+	* marshal.c (compat_allocator_table): initialize
+	  compat_allocator_tbl on demand.
 
-Thu Aug 23 19:16:20 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* object.c (rb_undefined_alloc): extract from rb_obj_alloc.
 
-	* win32/Makefile.sub: refactoring.  remove unused rules, and update
-	  some rules which are not used usually to fit current macros.
+Wed Dec  2 15:12:43 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Aug 23 16:46:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* configure.in: Fixed double negative comments.
+	  [Bug #11698][ruby-core:71506]
 
-	* file.c (rb_find_file_ext_safe, rb_find_file_safe): default to
-	  US-ASCII for encdb and transdb.
+Wed Dec  2 14:55:01 2015  yui-knk  <spiketeika@gmail.com>
 
-	* load.c (search_required): keep encoding of feature name.  set
-	  loading path to filesystem encoding.  [Bug #6377][ruby-core:44750]
+	* test/ruby/test_string.rb: removed non executing tests.
+	  [Misc #11757][ruby-dev:49397]
 
-	* ruby.c (add_modules, require_libraries): assume default external
-	  encoding as well as ARGV.
+Wed Dec  2 11:23:06 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Aug 23 16:20:04 2012  Koichi Sasada  <ko1@atdot.net>
+	* lib/csv.rb: enable frozen_string_literal.
+	  [fix GH-1116] Patch by @marshall-lee
 
-	* include/ruby/ruby.h: introduce flonum technique for
-	  64bit CPU environment (sizeof(double) == sizeof(VALUE)).
-	  flonum technique enables to avoid double object creation
-	  if the double value d is in range about between
-	  1.72723e-77 < |d| <= 1.15792e+77 or 0.0.
-	  flonum Float value is immediate and their lowest two bits
-	  are b10.
-	  If flonum is activated, then USE_FLONUM macro is 1.
-	  I'll write detailed in this technique on
-	  https://bugs.ruby-lang.org/projects/ruby-trunk/wiki/Flonum_tech
+Wed Dec  2 10:36:25 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* benchmark/bmx_temp.rb: add an benchmark for simple
-	  Float calculation.
+	* ext/bigdecimal/bigdecimal.c: Fix double word typo.
+	  [ci skip][fix GH-1120] Patch by @jwworth
 
-	* gc.c (id2ref, rb_obj_id): add flonum Float support.
+Wed Dec  2 07:43:51 2015  Eric Wong  <e@80x24.org>
 
-	* include/ruby/intern.h: move decl of rb_float_new(double)
-	  to include/ruby/ruby.h.
+	* ext/openssl/ossl_ssl.c (mSSLExtConfig): make static
+	  (eSSLError): ditto
+	  (ID_callback_state): ditto
+	  (ossl_ssl_ex_vcb_idx): ditto
+	  (ossl_ssl_ex_store_p): ditto
+	  (ossl_ssl_ex_ptr_idx): ditto
+	* ext/openssl/ossl_ssl.h: remove extern declarations for
+	  mSSLExtConfig and eSSLError
 
-	* insns.def, vm.c, vm_insnhelper.c: add flonum optimization
-	  and simplify source code.
+Wed Dec  2 07:41:08 2015  Eric Wong  <e@80x24.org>
 
-	* vm_insnhelper.h (FLONUM_2_P): added.
+	* missing/explicit_bzero.c (explicit_bzero): fixup r52839
+	  for compilers with "weak" attribute
 
-	* marshal.c: support flonum output.
+Wed Dec  2 06:47:25 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* numeric.c (rb_float_new_in_heap): added.
+	* missing/explicit_bzero.c: add ruby_explicit_bzero_hook_unused
+	  for preventing optimization. Inspired from OpenBSD.
 
-	* parse.y: support flonum.
+Tue Dec  1 23:36:39 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* random.c: ditto.
+	* thread.c (rb_thread_setname): allow to reset thread name.
 
-Thu Aug 23 16:12:40 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Tue Dec  1 23:14:04 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/mkmf.rb (create_makefile): add dependency to header files when
-	  depend files don't exist.  now we can remove simple (and often
-	  wrong) depend files in most cases.
+	* thread.c (rb_thread_setname): check the argument if valid
+	  string.  [ruby-core:71774] [Bug #11756]
 
-Thu Aug 23 16:02:20 2012  Koichi Sasada  <ko1@atdot.net>
+Tue Dec  1 17:13:41 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/date/depend: add dependency to $(ruby_headers).
+	* string.c (rb_string_value_cstr): should not raise on frozen
+	  string.
 
-Thu Aug 23 12:51:39 2012  Shugo Maeda  <shugo@ruby-lang.org>
+Tue Dec  1 09:35:29 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* insns.def (invokesuper): reverted r36640 partially to make super
-	  in a thread work correctly. [ruby-core:47284] [Bug #6907]
+	* missing/explicit_bzero.c: add a few comment.
 
-	* test/ruby/test_super.rb: related test.
+Tue Dec  1 09:31:19 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-Thu Aug 23 12:30:20 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* missing/explicit_bzero.c: add disabling optimization on gcc.
 
-	* win32/configure.bat: support --with(out)?-ext(ensions) options.
+Tue Dec  1 07:50:33 2015  Eric Wong  <e@80x24.org>
 
-Thu Aug 23 11:52:04 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* missing/explicit_bzero.c: new file. define explicit_bzero.
+	  Fixup r52806
 
-	* configure.in: Fixing Haiku build.
-	  - -lbe is not required for linking
-	  - stack protector doesn't work for now because of the default gcc's
-	    bug
-	  by Takashi Toyoshima <toyoshim@gmail.com>
-	  https://github.com/ruby/ruby/pull/167
+Thu Oct 22 12:54:43 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* signal.c (ruby_signal): haiku doesn't have SIGBUS.
+	* thread_pthread.c (register_ubf_list): renamed from
+	  add_signal_thread_list.
+	* thread_pthread.c (unregister_ubf_list): renamed
+	  from remove_signal_thread_list.
+	* thread_pthread.c (ubf_wakeup_all_threads): renamed from
+	  ping_signal_thread_list.
+	* thread_pthread.c (ubf_wakeup_thread): renamed from
+	  ubf_select_each.
+	* thread_pthread.c (ubf_threads_empty): renamed from
+	  check_signal_thread_list().
+	* thread_pthread.c (ubf_list_lock): renamed from
+	  signal_thread_list_lock.
 
-Thu Aug 23 11:32:44 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* thread_pthread.c (register_ubf_list): large simplification
+	  by using ccan/list.h.
+	  bonus: removed malloc() and exit(EXIT_FAILURE).
+	* thread_pthread.c (unregister_ubf_list): ditto.
+	* thread_pthread.c (ubf_threads_empty): ditto.
+	* thread_pthread.c (ubf_wakeup_all_threads): ditto.
 
-	* test/open-uri/test_open-uri.rb (TestOpenURI#test_read_timeout): this
-	  test expects that the server thread will be killed in sleep, but 0.01
-	  sec is too short to reach there.
+	* thread_pthread.c (print_signal_list): removed.
 
-Thu Aug 23 10:49:28 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Oct 22 08:03:49 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* configure.in: use the value of --with-opt-dir on building ruby
-	  itself. [ruby-dev:46064] [Bug #6900]
+	* test/ruby/test_rand.rb (TestRand#test_default_seed): add
+	  srand case.
 
-Thu Aug 23 10:36:35 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Thu Oct 22 06:33:38 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* common.mk (ID_H_TARGET): revert a part of r36724 and r36751.  they
-	  break mswin build from clean source.
+	* random.c (InitVM_Random): move Random::DEFAULT initialization
+	  bits to Init_Random_default.
+	* random.c (Init_Random_default): renamed from Init_RandomSeed2.
+	* random.c (Init_RandomSeedCore): renamed from Init_RandomSeed.
 
-Thu Aug 23 02:37:35 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+Thu Oct 22 06:20:48 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* ext/syck: removed. Fixes [ruby-core:43360]
+	* random.c (Init_RandomSeed): move all Random::DEFAULT
+	  construction bits to Init_RandomSeed2. Random::DEFAULT
+	  and Ruby internal hashes are no longer shared their seed.
+	* random.c (Init_RandomSeed2): ditto. And, kill evil
+	  rb_obj_reveal() stuff.
 
-	* test/syck: removed.
+	* random.c (init_hashseed): add MT argument.
+	* random.c: (init_siphash): ditto.
 
-	* lib/yaml.rb: only require psych, show a warning if people try to set
-	  the engine to syck.
+	* test/ruby/test_rand.rb (TestRand#test_default_seed): new
+	  test for Random::DEFAULT::seed.
 
-Thu Aug 23 01:46:53 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+Thu Oct 22 05:23:48 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* insns.def: search up the cf stack for an object that is an instance
-	  of the recipient class.  Fixes [ruby-core:47186]
+	* random.c (init_hashseed, init_siphash): extract initialize
+	  functions.
 
-	* test/ruby/test_super.rb: related test.
+Thu Oct 22 01:01:34 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-Wed Aug 22 19:46:24 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+	* configure.in: sort AC_CHECK_HEADERS() by alphabetical order.
 
-	* ext/date/date_core.c: [ruby-core:47266].
+Thu Oct 22 00:19:07 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-Wed Aug 22 19:41:19 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+	* random.c (init_randomseed): remove "initial" argument. It never
+	  be used from outside of this function.
 
-	* ext/date/date_core.c: [ruby-core:47226].
+Thu Oct 22 00:12:33 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-Wed Aug 22 16:57:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/securerandom.rb (SecureRandom::gen_random): use /dev/urandom
+	  for initialize OpenSSL's rand.
 
-	* lib/mkmf.rb (configuration): extract least ruby headers list as
-	  ruby_headers, so depend files can use default dependency
-	  explicitly.
+Wed Oct 21 12:10:04 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-Wed Aug 22 15:27:50 2012  Koichi Sasada  <ko1@atdot.net>
+	* ext/openssl/ossl_rand.c (ossl_rand_bytes): RAND_bytes could
+	  be return -1 as an error. Therefore, added error handling.
+	* ext/openssl/ossl_pkey_dsa.c (dsa_generate): ditto.
 
-	* vm_insnhelper.c (vm_setup_method): fix last commit of
-	  vm_insnhelper.c (r36771). [ruby-dev:46065] [Bug #6901]
-	  Should not disable tail call opt on FINISH_FRAME.
-	  This flag should be propagated correctly.
+Wed Oct 21 09:04:09 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-Wed Aug 22 14:05:23 2012  Koichi Sasada  <ko1@atdot.net>
+	* include/ruby/util.h: remove a warning suppression C4723
+	  (potential divide by zero) for VisualC++. It's meaningless.
+	  Before r26197, there is ruby_div0() in this place and it
+	  actually made divide by zero. But now it's just garbage.
 
-	* vm_trace.c: support TracePoint. [ruby-trunk - Feature #6895]
+Wed Oct 21 08:23:36 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* test/ruby/test_settracefunc.rb: add tests for above.
+	* random.c: random_raw_seed don't use GRND_NONBLOCK. GRND_NONBLOCK
+	  mean the result might not have an enough cryptic strength and
+	  easy predictable. That's no good for SecureRandom.
 
-	* proc.c (rb_binding_new_with_cfp): add an internal function.
+Sun Oct 18 17:26:53 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* vm.c (rb_vm_control_frame_id_and_class): add an internal function.
+	* common.mk: add a rule for explicit_bzero.o.
+	* configure.in: detect explicit_bzero and memset_s.
+	* include/ruby/missing.h: add explicit_bzero.
+	* random.c (init_randomseed): use explicit_bzero() instead of
+	  memset(). memset could be eliminated by compiler optimization.
 
-	* vm_trace.c: add rb_add_event_hook2() and rb_thread_add_event_hook2().
-	  Give us the good name for them!
+Mon Nov 30 18:46:44 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Wed Aug 22 11:38:16 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+	* ext/readline/extconf.rb: call dir_config("libedit")
+	  if --enable-libedit is specified. [Bug #11751]
+	  patched by John Hein
 
-	* .travis.yml (before_script): Turned out that make -j is broken.
+Mon Nov 30 08:44:29 2015  Eric Wong  <e@80x24.org>
 
-Wed Aug 22 11:23:35 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* variable.c: remove spurious #define for globals
+	  [ruby-core:71735] [Feature #11749]
 
-	* vm_insnhelper.c (vm_setup_method): should not enable tail call
-	  optimization for frames with VM_FRAME_FLAG_FINISH.
-	  [ruby-dev:46065] [Bug #6901]
+Sun Nov 29 09:13:03 2015  Conor Landry  <clandry94@gmail.com>
 
-Wed Aug 22 11:20:47 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* NEWS: [DOC] Various grammar corrections and clarifications to
+	  increase readability.  [Fix GH-1115]
 
-	* lib/rubygems/test_case.rb: run test with psych if exist.
+Sat Nov 28 19:33:55 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Aug 16 12:09:51 2012  Yuki Yugui Sonoda  <yugui@google.com>
+	* parse.y (parser_here_document): store dispatched result of
+	  on_tstring_content at the last fragment of a here document.
 
-	* nacl/pepper_main.c (init_loadpath): Pushes the correct load path on
-	  other architectures than x86_64. Fixes #6873.
+Fri Nov 27 19:19:44 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Wed Aug 15 19:37:33 2012  Yuki Yugui Sonoda  <yugui@google.com>
+	* lib/net/http.rb (connect): detect closed connection and reconnect
+	  If the server closes a keep-alive http connection, the client socket
+	  reaches EOF. To avoid an EOFError, detect the closed connection and
+	  reconnect.
+	  Added test to ensure HTTP#post succeeds even if the
+	  keep-alive-connection has been closed by the server.
+	  by Kristian Hanekamp <kris.hanekamp@gmail.com>
+	  https://github.com/ruby/ruby/pull/1089 fix GH-1089
 
-	* configure.in (ac_cv_func_shutdown): shutdown(2) has a dummy
-	  implementation but has no declaration and does not work in
-	  NativeClient SDK pepper_20.
+Thu Nov 26 21:36:40 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Aug 15 19:29:29 2012  Yuki Yugui Sonoda  <yugui@google.com>
+	* compile.c (iseq_peephole_optimize): enable tail call
+	  optimization for specialized indexers.
 
-	* common.mk (vm_backtrace.o): Added missing dependencies.
+	* compile.c (iseq_compile_each): blockiseq should be NULL, but not
+	  Qnil.
 
-	* ext/nkf/depend (nkf.o): ditto.
+Thu Nov 26 17:22:53 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* ext/ripper/depend (ripper.o) ditto.
+	* regcomp.c, regenc.c, regexec.c, regint.h, enc/unicode.c:
+	  Merge Onigmo 58fa099ed1a34367de67fb3d06dd48d076839692
+	  + https://github.com/k-takata/Onigmo/pull/52
 
-Wed Aug 22 07:27:00 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Nov 26 09:50:02 2015  yui-knk  <spiketeika@gmail.com>
 
-	* lib/cgi/util.rb (CGI.escapeHTML): use &#39;
-	  [ruby-core:47221] [Bug #6861]
+	* test/coverage/test_coverage.rb: Added test-case for Coverage.restart.
+	  [Misc #11732][ruby-dev:49379]
 
-Tue Aug 21 21:59:22 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+Thu Nov 26 09:46:36 2015  yui-knk  <spiketeika@gmail.com>
 
-	* lib/observer.rb: fix typo. https://github.com/ruby/ruby/pull/162 by
-	  unsymbol (Philip Cunningham).
+	* test/coverage/test_coverage.rb: Added test-case for Coverage.peek_result
+	  without Coverage.start. [Misc #11726][ruby-core:71622]
 
-Tue Aug 21 20:30:06 2012  Benoit Daloze  <eregontp@gmail.com>
+Thu Nov 26 07:22:55 2015  Eric Wong  <e@80x24.org>
 
-	* test/fileutils/test_fileutils.rb (TestFileUtils#teardown):
-	  do not assume cwd is TMPROOT and never remove current directory.
-	  [ruby-core:47224][Bug #6884]
+	* test/openssl/test_ssl.rb (test_copy_stream): new test
 
-Tue Aug 21 17:29:56 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed Nov 25 21:23:39 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* addr2line.c (fill_lines): need check and cast of the file size of
-	  target binary because there are some platforms which off_t > size_t.
+	* io.c (copy_stream_body): try to_io conversion before read,
+	  readpartial, and write methods.  [ruby-dev:49008] [Bug #11199]
 
-Tue Aug 21 17:07:58 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+Wed Nov 25 10:55:21 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* .travis.yml (compiler): [experimental] clang support.
+	* io.c (argf_getpartial): should not resize str if the second
+	  argument is not given.
+	  [ruby-core:71668] [Bug #11738]
 
-Tue Aug 21 15:44:27 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Tue Nov 24 23:56:25 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* ext/dl/lib/dl/func.rb (DL::Function#bind): fixes an error in
-	  test/dl/test_import.rb (DL::TestImport#test_carried_function)
-	  introduced by r36718.
-	  the instance of the anonymous class which wraps the block should have
-	  same methods and instance variables of self.
+	* configure.in: On Solaris, it is safe to define _LARGEFILE_SOURCE
+	  when _FILE_OFFSET_BITS=64 is defined (= when 32-bit compile).
 
-Tue Aug 21 14:29:22 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Tue Nov 24 10:00:10 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* win32/Makefile.sub (scriptbin.mk): no need to include twice.
+	* lib/rubygems/installer.rb: Fix two double-word typos.
+	  [ci skip][fix GH-1108] Patch by @jwworth
 
-Tue Aug 21 10:52:08 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Tue Nov 24 09:17:02 2015  Alexander von Gluck IV  <kallisti5@unixzen.com>
 
-	* test/unit/test.rb (Test::Unit::ProxyError): new exception class to
-	  wrap exceptions raised in workers in parallel test mode.
+	* beos: Drop support for BeOS now that Haiku is stable.
+	  [Fix GH-1112]
 
-	* test/unit/parallel.rb (Test::Unit::Worker#puke): use above wrapper
-	  exception.
-	  [Bug #6882] [ruby-dev:46054]
+Tue Nov 24 09:16:35 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Aug 21 10:40:06 2012  Koichi Sasada  <ko1@atdot.net>
+	* internal.h (rb_gc_for_fd): move to export, as referred by
+	  ext/socket.
 
-	* test_continuation.rb (tracing_with_thread_set_trace_func):
-	  fix to use Thread#set_trace_func(nil), not set_trace_func(nil).
+Tue Nov 24 09:04:29 2015  David Rodriguez  <deivid.rodriguez@gmail.com>
 
-Tue Aug 21 09:32:41 2012  Ryan Davis  <ryand-ruby@zenspider.com>
+	* file.c: [DOC] add a missing period to File docs, to terminate
+	  the sentence and separate from the next sentence.  [Fix GH-1111]
 
-	* lib/minitest/*: Imported minitest 3.3.0 (r7676)
-	* test/minitest/*: ditto
+Tue Nov 24 08:30:06 2015  JuanitoFatas  <katehuang0320@gmail.com>
 
-Tue Aug 21 09:05:32 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* NEWS: Fix the issue number of `Struct#dig`, which should be
+	  [Feature #11688].  [Fix GH-1110]
 
-	* test/testunit/tests_for_parallel/ptest_forth.rb: added a test case
-	  which causes an error.
+Tue Nov 24 07:56:54 2015  Eric Wong  <e@80x24.org>
 
-	* test/testunit/test_parallel.rb: follow above change.
-	  see [Bug #6882]
+	* ext/socket/init.c (rsock_s_accept): handle ENOMEM
 
-Tue Aug 21 05:43:00 2012  James Edward Gray II  <james@graysoftinc.com>
+Tue Nov 24 07:50:15 2015  Eric Wong  <e@80x24.org>
 
-	* lib/csv.rb: Fixes #161 on github
-	* lib/csv.rb: You can now specify a pattern for :skip_lines.
-	  Matching lines will not be passed to the CSV parser.
-	* lib/csv.rb: Patch by Christian Schwartz.
+	* dir.c (dir_initialize): use rb_gc_for_fd for ENOMEM
+	* ext/socket/init.c (rsock_socket): ditto
+	* ext/socket/socket.c (rsock_socketpair): ditto
+	* internal.h (rb_gc_for_fd): prototype
+	* io.c (rb_gc_for_fd): remove static
+	  [ruby-core:71623] [Feature #11727]
 
-Tue Aug 21 05:25:41 2012  Eric Hodel  <drbrain@segment7.net>
+Tue Nov 24 06:46:27 2015  Eric Wong  <e@80x24.org>
 
-	* re.c (rb_reg_initialize_m): Forgot to update output for or'd-options
-	  example.
+	* io.c (rb_gc_for_fd): new helper function
+	  (ruby_dup): use rb_gc_for_fd
+	  (rb_sysopen): ditto
+	  (rb_fdopen): ditto
+	  (rb_pipe): ditto
+	  [ruby-core:71623] [Feature #11727]
 
-Tue Aug 21 05:18:03 2012  Eric Hodel  <drbrain@segment7.net>
+Tue Nov 24 05:13:35 2015  Eric Wong  <e@80x24.org>
 
-	* re.c (rb_reg_initialize_m): Update example to show that regexp
-	  options use | an not || to avoid confusion.
+	* ext/fiddle/function.c (struct nogvl_ffi_call_args):
+	  new struct for GVL release
+	  (nogvl_ffi_call): new function
+	  (function_call): adjust for GVL release
+	  [ruby-core:71642] [Feature #11607]
+	* ext/fiddle/closure.c (struct callback_args):
+	  new struct for GVL acquire
+	  (with_gvl_callback): adjusted original callback function
+	  (callback): wrapper for conditional GVL acquire
+	* ext/fiddle/depend: add dependencies
+	* ext/fiddle/extconf.rb: include top_srcdir for internal.h
+	* internal.h (ruby_thread_has_gvl_p): expose for fiddle
+	* vm_core.h (ruby_thread_has_gvl_p): moved to internal.h
+	* test/fiddle/test_function.rb (test_nogvl_poll): new test
 
-Mon Aug 20 23:02:27 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Nov 23 19:53:12 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* parse.y: more descriptive token names in syntax error messages.
+	* configure.in: On Solaris, with gcc, "-std=iso9899:1999"
+	  in $ansi_options is often also needed in CPPFLAGS,
+	  because some feature definitions vary depending on such
+	  standards options.
 
-Mon Aug 20 20:36:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Nov 23 12:54:39 2015  Hamish Morrison  <hamishm53@gmail.com>
 
-	* vm_insnhelper.c (vm_call_method): follow iclasses as klass in cfp
-	  but not included modules.  [ruby-core:47241] [Bug #6891]
+	* configure.in: remove obsolete workarounds for Haiku.
 
-	* vm_insnhelper.c (vm_call_bmethod): pass defined_class to follow
-	  proper ancestors.  [ruby-core:47241] [Bug #6891]
+	* dln.c, file.c, io.c: remove obsolete Haiku workarounds.
 
-Mon Aug 20 11:40:27 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	* thread_pthread.c: add stack bounds detection for Haiku.
 
-	* common.mk: fix failed to make with -j2.
-	  https://gist.github.com/3397935
+	* signal.c: get stack pointer from signal context on Haiku.
+	  [ruby-core:67923] [Bug #10811] [Fix GH-1109]
 
-Mon Aug 20 10:51:01 2012  Shota Fukumori  <sorah@tubusu.net>
+Mon Nov 23 11:44:11 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* lib/test/unit.rb, lib/test/unit/parallel.rb:
-	  generate error message (String) in parallel.rb instead of
-	  marshalling Exception. Fixes [Bug #6882] [ruby-dev:46054]
+	* gems/bundled_gems: bump version to minitest-5.8.3
 
-Sun Aug 19 01:24:32 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+Mon Nov 23 08:55:00 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* enum.c: fix docs. https://github.com/ruby/ruby/pull/129 by
-	  richardkmichael (Richard Michael).
+	* ChangeLog: fix wrong reference for r52714
 
-Sun Aug 19 00:47:26 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+Sun Nov 22 22:23:37 2015  Rei Odaira  <Rei.Odaira@gmail.com>
 
-	* lib/fileutils.rb: fix typo.
-	  https://github.com/ruby/ruby/pull/155 by simonc (Simon COURTOIS).
+	* gc.c (rb_raw_obj_info): fix compile errors when USE_RGENGC
+	  is 0.
 
-Sat Aug 18 09:57:46 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Nov 22 21:58:09 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* enc/depend: fix inplace-build condition.  enc.mk is generated with
-	  setting $srcdir to enc, but pwd is still top build directory.
-	  [ruby-core:47236] [Bug #6888]
+	* lib/cmath.rb: methods which has suffix '!' are now deprecated.
+	  Re-apply r52469 made by Kazuki Tanaka, with fixing bug about
+	  mathn.rb compatibility. [ruby-core:68528] [Feature #10974]
 
-Fri Aug 17 23:28:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Nov 22 19:36:51 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* object.c (rb_any_to_s, rb_obj_inspect): preserve encodings of class
-	  name and instance variable names.
+	* ext/openssl/ossl.c: fix brew command for installation of openssl.
+	  [ci skip][fix GH-1107] Patch by @arthurnn
 
-Fri Aug 17 12:39:33 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Sun Nov 22 17:59:50 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* ext/dl/lib/dl/func.rb (DL::Function#bind): allow to return/break from
-	  the callback method. (Fiddle already allows it.)
-	  [Bug #6389] [ruby-dev:45604]
+	* configure.in: On Solaris, add -D_XOPEN_SOURCE=n only when both
+	  AC_TRY_CPP and AC_TRY_COMPILE pass, because some options
+	  (e.g. -std=iso9899:1999) are not set when running C preprocessor
+	  or building ext.
 
-Thu Aug 16 19:54:24 2012  Koichi Sasada  <ko1@atdot.net>
+Sun Nov 22 16:53:34 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_trace.c, vm_core.h: simplify tracing mechanism.
+	* compile.c (iseq_peephole_optimize): remove unreachable code
+	  chunk after jump/leave.
 
-	  (1) add rb_hook_list_t data structure which includes
-	      hooks, events (flag) and `need_clean' flag.
-	      If the last flag is true, then clean the hooks list.
-	      In other words, deleted hooks are contained by `hooks'.
-	      Cleanup process should run before traversing the list.
-	  (2) Change check mechanism
-	      See EXEC_EVENT_HOOK() in vm_core.h.
-	  (3) Add `raw' hooks APIs
-	      Normal hooks are guarded from exception by rb_protect().
-	      However, this protection is overhead for too simple
-	      functions which never cause exceptions.  `raw' hooks
-	      are executed without protection and faster.
-	      Now, we only provide registration APIs.  All `raw'
-	      hooks are kicked under protection (same as normal hooks).
+	* parse.y: move dead code elimination of logical operation to
+	  compile.c.  not to warn logical operation of literal constants.
 
-	* include/ruby/ruby.h: remove internal data definition and
-	  macros.
+Sun Nov 22 16:37:10 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* internal.h (ruby_suppress_tracing), vm_trace.c: rename
-	  ruby_suppress_tracing() to rb_suppress_tracing()
-	  and remove unused function parameter.
+	* compile.c (iseq_peephole_optimize): eliminate always/never
+	  branches after a literal object and when the value is used after
+	  the branch.
 
-	* parse.y: fix to use renamed rb_suppress_tracing().
+Sun Nov 22 01:23:43 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* thread.c (thread_create_core): no need to set RUBY_VM_VM.
+	* configure.in: Add -D_XOPEN_SOURCE=500 (or 600 or 700) on Solaris
+	  if available, mainly for enabling some features in sockets.
 
-	* vm.c (mark_event_hooks): move definition to vm_trace.c.
+Sun Nov 22 00:17:22 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* vm.c (ruby_vm_event_flags): add a global variable.
-	  This global variable represents all of Threads and VM's
-	  event masks (T1#events | T2#events | ... | VM#events).
-	  You can check the possibility kick trace func or not
-	  with ruby_vm_event_flags.
-	  ruby_vm_event_flags is maintained by vm_trace.c.
+	* test/socket/test_socket.rb (test/socket/test_socket.rb): skip
+	  the test when Socket::SO_TIMESTAMP is not defined. Fix error
+	  on Solaris 10. [Bug #11728] [ruby-dev:49377]
 
-	* cont.c (fiber_switch, rb_cont_call): restore tracing status.
-	  [Feature #4347]
+Sat Nov 21 18:57:28 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_continuation.rb: ditto.
+	* ruby.c (need_argument): move frozen-string-literal-debug option
+	  from --enable to --debug.  [Feature #11725]
 
-Thu Aug 16 19:15:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ruby.c (proc_options): fix pointer overrun. do not advance argv
+	  until it is valid.
 
-	* object.c (rb_class_initialize): forbid inheriting uninitialized
-	  class.  another class tree not based on BasicObject cannot exist.
-	  [ruby-core:47148][Bug #6863]
+Sat Nov 21 13:59:09 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Thu Aug 16 11:52:06 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/digest/sha1/extconf.rb: OpenSSL's struct name for SHA1 is
+	  SHA_CTX. http://openssl.org/docs/man0.9.8/crypto/SHA1.html
 
-	* test/-ext-/test_printf.rb (Test_SPrintf#test_{taint,untrust}): use
-	  plain object so that the results of to_s and inspect are infected.
-	  [ruby-dev:46053] [Bug #6881]
+Sat Nov 21 13:31:52 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Thu Aug 16 09:46:07 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/digest/*/*.[ch]: include ruby.h before digest.h to avoid
+	  including ext/digest/extconf.h. [Bug #3231]
+	  https://msdn.microsoft.com/library/36k2cdd4.aspx
 
-	* strftime.c: remove unnecessary macros to check traditional C.
-	  https://github.com/ruby/ruby/pull/46 by lateau (Daehyub Kim).
+	* ext/digest/*/extconf.rb: remove ext/digest from include search path
+	  to avoid confusion of cl.exe.
 
-	* vsnprintf.c: remove K&R.
+	* ext/digest/*/*.[ch]: explicitly specify def.h's path.
 
-Wed Aug 15 20:47:49 2012  Benoit Daloze  <eregontp@gmail.com>
+Sat Nov 21 13:05:16 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* object.c (rb_obj_inspect): Kernel#inspect: do not call #to_s. A class
-	  can now benefit from the nice default #inspect even if it defines #to_s.
-	  Also, there is no more unexpected change in #inspect result.
+	* ext/openssl/ossl.h: LibreSSL doesn't have and need e_os2.h.
 
-	* NEWS: Add note about the change.
+Sat Nov 21 09:18:10 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* bignum.c, io.c, numeric.c, object.c, proc.c, vm.c (Init_*):
-	  Adapt internal structures (by aliasing #inspect to #to_s) so they
-	  don't rely on the removed behavior (#inspect calling overridden #to_s).
+	* thread_sync.c: reduce the specification of Queue#close.
+	  * Queue#close accepts no arguments.
+	  * deq'ing on closed queue returns nil, always.
+	  [Feature #10600]
 
-	* test/ruby/test_object.rb (test_inspect): add tests for Kernel#inspect.
+	* test/thread/test_queue.rb: catch up this fix.
 
-	* lib/pp.rb (class PP): do not call #to_s anymore, as #inspect
-	  no more does (mame).
+Sat Nov 21 08:44:21 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* test/test_pp.rb (class PPInspectTest): remove related assertion (mame).
-	  [ruby-core:43238][Feature #6130]
+	* compile.c (iseq_compile_each): add debug information to NODE_STR
+	  strings as default.
+	  [Feature #11725]
 
-	* test/drb/drbtest.rb (DRbCore#teardown, DRbAry#teardown):
-	  adapt DRb tests with the new change (shirosaki).
-	  [ruby-core:47182][Bug #6866]
+	* insns.def (freezestring): add new instruction to support adding
+	  debug information for dynamically constructed strings.
 
-Wed Aug 15 18:05:37 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* compile.c (iseq_compile_each): support adding debug information
+	  for NODE_DSTR with freezestring instruction.
 
-	* lib/test/unit.rb (Test::Unit::Runner#failed): need to delete the
-	  status line if the status is skipped and -q is specified.
+	* error.c (rb_error_frozen): change the debug information ID name
+	  id_debug_created_info and this field should have a 2 element array
+	  containing path and line information.
 
-Wed Aug 15 16:26:52 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* defs/id.def: ditto.
 
-	* sprintf.c (ruby__sfvextra): the result should be infected by the
-	  given strings.
+	* test/ruby/test_rubyoptions.rb: catch up this fix.
 
-	* sprintf.c (ruby__sfvwrite): set buffer length and exclude
-	  uninitialized garbage to get correct coderange.
+	* test/ruby/test_iseq.rb: now frozen strings are not same.
 
-Wed Aug 15 16:20:09 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Nov 21 04:34:16 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* common.mk (ID_H_TARGET): make timestamp file of id.h so that the
-	  header will not be remade repetitively.
+	* symbol.c (rb_str_intern): should not freeze the receiver itself
+	  unexpectedly.  [ruby-core:71611] [Bug #11721]
 
-Wed Aug 15 11:39:53 2012  Koichi Sasada  <ko1@atdot.net>
+Fri Nov 20 23:15:18 2015  Naotoshi Seo  <sonots@gmail.com>
 
-	* vm_trace.c: separate trace_func related functions from
-	  thread.c.
+	* lib/logger.rb: expose logger mutex
+	  [fix GH-541] Patch by @arthurnn
 
-	* thread.c: ditto.
+Fri Nov 20 15:05:28 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* common.mk: add vm_trace.o.
+	* Added missing reference of GitHub
 
-	* inits.c: call Init_vm_trace().
+Fri Nov 20 14:57:01 2015  Trevor Rowe  <trevorrowe@gmail.com>
 
-Tue Aug 14 16:25:46 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* lib/net/http.rb: Fixed regression for Net::HTTP::PUT with "Expect-100"
+	  header. [fix GH-949]
+	* test/net/http/test_http.rb: added test.
 
-	* test/erb/test_erb.rb (test_html_escape): add assertions for the
-	  cases where the argument is not a String.
+Fri Nov 20 14:39:56 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Aug 14 16:03:31 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* lib/net/http.rb: set hostname before call ossl_ssl_set_session.
+	  [Bug #11401][ruby-core:70152][fix GH-964] Patch by @mkarnebeek
 
-	* win32/win32.c (check_valid_dir): reject "..." as directory name.
-	  [Bug #6851]
+Fri Nov 20 12:53:19 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Aug 14 16:02:51 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* array.c: clarify docs for take_while/drop_while samples.
+	  [ci skip][fix GH-1028] Patch by @leriksen
 
-	* test/ruby/test_file_exhaustive.rb
-	  (TestFileExhaustive#test_stat_dotted_prefix): added.
+Fri Nov 20 12:48:04 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Aug 14 15:39:09 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* ext/socket/socket.c: remove mention of :UNIX in getaddrinfo().
+	  It's typically not a support option.
+	  [ci skip][fix GH-990] Patch by @eam
 
-	* test/ruby/test_file_exhaustive.rb
-	  (TestFileExhaustive#test_stat_drive_root): added.
+Fri Nov 20 12:44:06 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Aug 14 10:38:17 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* lib/rss/syndication.rb: Add nodoc marker for #validate_sy_updatePeriod.
+	  [ci skip][fix GH-1105] Patch by @davydovanton
 
-	* lib/erb.rb (ERB::Util.html_escape): fix r36687: call to_s before
-	  passing it to CGI.escapeHTML.
+Fri Nov 20 09:05:21 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Aug 13 13:13:19 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* vm.c (rb_vm_cref_replace_with_duplicated_cref): added.
 
-	* lib/erb.rb (ERB::Util.html_escape): use CGI.escapeHTML to escape
-	  single quotes. [ruby-core:47138] [Bug #6861]
+	  CREFs should not be shared by methods between `using'.
+	  [Bug #11247]
 
-Sun Aug 12 11:57:20 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* vm_insnhelper.c (vm_cref_replace_with_duplicated_cref): ditto.
 
-	* vm.c (invoke_block_from_c): fix unintentional block passing.
-	  [ruby-dev:45071] [Bug #5832]
+	* vm.c (vm_cref_dup): should copy refinements correctly.
 
-Fri Aug 10 08:41:28 2012  Eric Hodel  <drbrain@segment7.net>
+	* eval.c: use rb_vm_cref_replace_with_duplicated_cref().
 
-	* gc.c (gc_malloc_allocated_size):  RDoc does not process macros, so
-	  mention this method is only available when ruby is built with
-	  CALC_EXACT_MALLOC_SIZE
-	* gc.c (gc_malloc_allocations):  ditto
+	* eval_intern.h: add a decl. of
+	  rb_vm_cref_replace_with_duplicated_cref().
 
-Thu Aug  9 23:46:51 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_eval.c (eval_string_with_cref): do not need to pass
+	  scope's CREF because VM can find out CREF from stack frames.
 
-	* tool/mkrunnable.rb: see build_os instead of target arch for
-	  cross-compiling.
+	* test/ruby/test_refinement.rb: add a test.
 
-	* configure.in (MINIRUBY): use real path for include path.
+Fri Nov 20 06:52:53 2015  Eric Wong  <e@80x24.org>
 
-	* template/fake.rb.in (builddir): remove duplications
+	* .gitattributes: new file for git users
+	  [ruby-core:71578] [Feature #11713]
 
-Thu Aug  9 20:03:11 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+Thu Nov 19 22:35:31 2015  Tanaka Akira  <akr@fsij.org>
 
-	* test/ruby/test_file_exhaustive.rb
-	  (TestFileExhaustive#test_stat_special_file): add a test.
-	  GetFileAttributesExW fails to get attributes of special files
-	  such as pagefile.sys.
+	* ext/socket/ancdata.c: Check buffer full and ignore MSG_TRUNC flag.
+	  buffer fullness is more robust to detect the message is too big for
+	  the buffer.
+	  AIX 7.1 recvmsg doesn't set MSG_TRUNC for rflags when MSG_PEEK is
+	  given.
 
-	* win32/win32.c (check_valid_dir): for performance, check the path
-	  by FindFirstFileW only if the path contains "..."
+Thu Nov 19 21:55:11 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* win32/win32.c (winnt_stat): use GetFileAttributesExW instead of
-	  FindFirstFileW since GetFileAttributesExW is faster.
-	  Based on the patch by Dusan D. Majkic.
-	  [ruby-core:47083] [Feature #6845]
+	* gc.c (gc_start): force to invoke GC by GC.start
+	  even if it is GC.disable'd.
 
-Thu Aug  9 18:33:46 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/test_gc.rb: add a test.
 
-	* ruby.c (proc_options): show version only once even if -v and
-	  --version are given together.
-	  http://twitter.com/d6rkaiz/status/233491797085671424
+Thu Nov 19 20:08:59 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Aug  9 12:37:22 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* gc.c: trivial performance improvements.
 
-	* test/openssl/test_config.rb (OpenSSL#test_constants): skip this
-	  test if platform is Mac OS X or Windows. [Bug #6830]
+	    name    modified
+	    vm1_gc_short_lived*                1.015
+	    vm1_gc_short_with_complex_long*    1.014
+	    vm1_gc_short_with_long*            1.000
+	    vm1_gc_short_with_symbol*          1.016
+	    vm1_gc_wb_ary*                     1.002
+	    vm1_gc_wb_ary_promoted*            0.996
+	    vm1_gc_wb_obj*                     1.045
+	    vm1_gc_wb_obj_promoted*            1.014
+	    vm3_gc                             1.021
 
-Wed Aug  8 22:51:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gc.c (gc_writebarrier_generational): reorder parameters to optimize
+	  register passing function call.
 
-	* vm_eval.c (eval_under): singletons other than special constants
-	  don't need cref-scope hack.
+	* gc.c (gc_writebarrier_incremental): ditto.
 
-Wed Aug  8 22:45:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gc.c (rb_gc_writebarrier): remove LIKELY().
+	  LIKELY() seems to move related functions not better places.
 
-	* common.mk (.y.h): split from .y.c rule to manage dependency on
-	  parse.h.  [ruby-core:46741] [Bug #6789]
+Thu Nov 19 19:45:05 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* common.mk (id.h): keep old file unless changed.
+	* ruby.c (ruby_prog_init): [DOC] ARGV does not contain the name of
+	  the executable.  [ruby-core:71561] [Bug #11711]
 
-Wed Aug  8 17:11:20 2012  Koichi Sasada  <ko1@atdot.net>
+Thu Nov 19 15:53:21 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* compile.c (ADD_INSNL): make ADD_INSNL as alias of ADD_INSN1.
+	* signal.c: should also clear ruby_disable_gc.
+	  [Bug #11692]
 
-Wed Aug  8 17:08:14 2012  Koichi Sasada  <ko1@atdot.net>
+Thu Nov 19 15:31:45 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* bootstrap/test_exception.rb: fix a last committed test.
+	* compile.c (iseq_compile_each): T_IMEMO/iseq objects should be
+	  wrap with ISeq wrappers. [Bug #11676]
 
-Wed Aug  8 16:27:58 2012  Koichi Sasada  <ko1@atdot.net>
+Thu Nov 19 15:16:12 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* compile.c, insns.def (checkmatch):
-	  remove checkincludearray instruction and
-	  add new instruction checkmatch.
-	  This change is to solve
-	  [Bug #4438] "rescue args type check omitted".
+	* lib/rubygems: Update to RubyGems 2.5.0+ HEAD(c6b4946).
+	  this version includes #1114, #1314, #1322, #1375, #1383, #1387
+	* test/rubygems: ditto.
 
-	* iseq.c: increment ISEQ_MAJOR_VERSION because removal of
-	  checkincludearray instruction.
+Thu Nov 19 14:14:37 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* vm_core.h: add several definitions for
-	  the checkmatch instruction.
+	* win32/win32.c (finish_overlapped_socket): return value of this
+	  function should be only 0 or SOCKET_ERROR.
 
-	* vm_insnhelper.c (check_match): added.
+Thu Nov 19 14:12:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* bootstraptest/test_exception.rb: add a test.
+	* compile.c (iseq_tailcall_optimize): apply tail call optimization
+	  before conversion to specialized instructions.  when looking
+	  back from `leave` instruction, `send` instructions have been
+	  translated already.
 
-	* test/ruby/test_exception.rb: ditto.
+Thu Nov 19 13:57:58 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Wed Aug  8 05:51:20 2012  Eric Hodel  <drbrain@segment7.net>
+	* win32/win32.c (finish_overlapped_socket): ignore EMSGSIZE when input,
+	  because POSIX platforms just do so.  fixes test errors revealed by
+	  r52647.
 
-	* proc.c (method_clone):  Added documentation.  Patch by Robin Dupret.
-	  Fixes #152 on github.
+Thu Nov 19 02:52:30 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Tue Aug  7 20:19:29 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* ext/socket/ancdata.c (bsock_recvmsg_internal): stretch the buffer size
+	  only when vmaxdatlen is nil.
 
-	* ext/readline/readline.c (Init_readline): rl_catch_signals=0 returns
-	  back. Without this, on FreeBSD9 and readline 6.2 irb can't catch ^C.
-	  [Bug #5423]
+Thu Nov 19 02:20:11 2015  Tanaka Akira  <akr@fsij.org>
 
-Tue Aug  7 20:12:39 2012  Koichi Sasada  <ko1@atdot.net>
+	* test/socket/test_socket.rb (test_udp_recvmsg_truncation): rflags is
+	  nil on Solaris 10 which have no HAVE_STRUCT_MSGHDR_MSG_CONTROL.
+	  Reported by Naohisa Goto. [ruby-core:71557] [Bug #11709]
 
-	* vm_exec.c, insns.def (leave): solve problems on
-	  OPT_CALL_THREADED_CODE.
-	  Catch up finish frame structure on OPT_CALL_THREADED_CODE.
+Thu Nov 19 01:48:05 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* vm_core.h: add rb_thread_t#retval for temporary space on
-	  OPT_CALL_THREADED_CODE.
+	* configure.in: add -static-libgcc for mingw automatically if available.
 
-	* vm.c (th_init): clear rb_thread_t#retval as Qundef.
+Thu Nov 19 00:53:26 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* vm_dump.c (rb_vmdebug_debug_print_pre): fix debug print format.
+	* ext/extmk.rb (--extflags): new option to pass EXTLDFLAGS to children,
+	  especially exts.mk.
 
-Tue Aug  7 11:58:27 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* common.mk (EXTMK_ARGS): use above option.
 
-	* test/ruby/test_require.rb (TestRequire#test_require_twice): added.
+Wed Nov 18 22:50:43 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Aug  7 11:35:37 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* vm_method.c (rb_class_clear_method_cache): should clear all
+	  RCLASS_CALLABLE_M_TBLs of all sub-classes (T_ICLASS).
 
-	* vm_method.c (rb_redefine_opt_method): use RCLASS_ORIGIN to avoid
-	  SEGV when a module-prepended class is refined.
+	  RCLASS_CALLABLE_M_TBL() caches complemented method entries.
+	  It should be cleared when the modules are cleared.
+	  On previous version clears only for direct children.
+	  It is enough for normal modules because corresponding T_ICLASSes
+	  are direct children.
 
-Tue Aug  7 10:46:37 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	  However, refinements create complex data structure. So that
+	  we need to clear all children (and descendants).
+	  [ruby-core:71423] [Bug #11672]
 
-	* test/ruby/test_file_exhaustive.rb
-	  (TestFileExhaustive#test_expand_path*): refactoring.  split the method
-	  into some chunks of the same kind of tests.
+	* vm_method.c (rb_clear_method_cache_by_class): rb_mKernel
+	  doesn't call rb_class_clear_method_cache, so that
+	  clear child T_ICLASSes.
 
-Tue Aug  7 00:31:09 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/test_refinement.rb: enable disabled test.
 
-	* class.c (rb_special_singleton_class_of): utility function.
+Wed Nov 18 21:09:08 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* vm_eval.c (eval_under): special deal for class variable scope with
-	  instance_eval.
+	* vm_method.c (prepare_callable_method_entry): use
+	  RCLASS_CALLABLE_M_TBL() instead of accessing a filed directly.
 
-	* vm_eval.c (rb_obj_instance_eval, rb_obj_instance_exec): allow method
-	  definition in instance_eval of special constants.  [ruby-core:28324]
-	  [Bug #2788]
+Wed Nov 18 17:08:18 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Aug  7 00:23:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* method.h: introduce the following field and macros.
 
-	* variable.c (CVAR_LOOKUP): split into helper functions.
+	  * rb_method_definition_t::complemented_count to count shared method
+	    entries because of complemented method entries and separate from
+	    alias_count.
 
-Mon Aug  6 19:15:11 2012  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+	    Shared `def' only by complemented method entries should not prevent
+	    method re-definition warning.
 
-	* test/win32ole/test_win32ole_variant.rb: setting WIN32OLE.locale
-	  to pass some assertion.  Thanks to Hiroshi Shirosaki.
-	  [ruby-core:46873][Bug #6814]
+	  * METHOD_ENTRY_COMPLEMENTED(me) to represent complemented method entry.
+	  * METHOD_ENTRY_COMPLEMENTED_SET(me) to check it as  complemented me.
 
-Mon Aug  6 15:54:50 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* vm_insnhelper.c (aliased_callable_method_entry): should also
+	  check me->def->complemented_count.
 
-	* internal.h, class.c, eval.c, insns.def: find the appropriate
-	  receiver for super called in instance_eval.  If such a receiver is
-	  not found, raise NoMethodError. [ruby-dev:39772] [Bug #2402]
+	* vm_method.c (method_definition_addref_complement): add to count
+	  complemented method entries number.
 
-Mon Aug  6 14:54:38 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* vm_method.c (rb_method_definition_release): release `def' iff
+	  alias_count == 0 and complemented_count == 0.
 
-	* include/ruby/ruby.h, eval.c, vm_insnhelper.c: fix typo.
+	* test/ruby/test_module.rb: add a test.
 
-Mon Aug  6 13:13:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Nov 18 17:06:19 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* vm_eval.c (vm_call_super): since cfp->klass is always class or
-	  iclass, no search from method entry.
+	* gc.c (rb_raw_obj_info): fix trivial issues.
 
-	* insns.def (defined): now should use klass in the current control
-	  frame to search superclass, not me->klass.  reported by naruse.
+	  * support SPECIAL_CONSTs.
+	  * fix IMEMO/ment outputs.
 
-Mon Aug  6 11:19:19 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed Nov 18 11:32:15 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/etc/test_etc.rb (TestEtc#test_getpwuid): `s' is never set to nil.
+	* compile.c (iseq_peephole_optimize): eliminate always/never
+	  branches after a literal object.  this sequence typically
+	  appears by defined? operator for a method call on a local
+	  variable.
 
-Mon Aug  6 11:08:48 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed Nov 18 10:33:06 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* test/syslog/test_syslog_logger.rb: skip unless Syslog module is
-	  available.
+	* ext/socket/ancdata.c (bsock_recvmsg_internal): stretch the buffer size
+	  when EMSGSIZE occurs on non HAVE_STRUCT_MSGHDR_MSG_CONTROL platforms
+	  (such as, Windows).  fixes a test error revealed by r52625.
 
-Mon Aug  6 00:40:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Nov 18 10:12:36 2015  Eric Wong  <e@80x24.org>
 
-	* ext/bigdecimal/bigdecimal.c (BigMath_s_log): fix format specifier.
+	* ext/socket/ancdata.c (bsock_recvmsg_internal): use 4096 as
+	  default size to match pre-r52610, which also maps to a common
+	  page size.
 
-Mon Aug  6 00:39:24 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Nov 18 10:05:25 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* include/ruby/ruby.h (NUM2ULONG): optimize by inline as well as
-	  NUM2LONG, and cast to unsigned long explicitly for the platforms
-	  where SIZEOF_VALUE is larger than SIZEOF_LONG.
+	* doc/syntax/refinements.rdoc: update documentation to reflect
+	  recent changes.
+	  [ci skip] [ruby-core:71466] [Misc #11681] Patch by James Adam
 
-	* include/ruby/ruby.h (NUM2SSIZET): fix type to cast.
+Wed Nov 18 09:50:21 2015  Naotoshi Seo  <sonots@gmail.com>
 
-Sun Aug  5 21:10:36 2012  Narihiro Nakamura  <authornari@gmail.com>
+	* test/logger/test_logdevice.rb: Fix tests of logger to make it work on
+	  windows (windows can not remove opened file) [Bug #11702]
 
-	* gc.c : if ENABLE_VM_OBJSPACE is 1, rest_sweep is not defined.
-	  remove unused declarations. [ruby-core:47004] [Bug #6837]
+Wed Nov 18 06:59:52 2015  Eric Wong  <e@80x24.org>
 
-Sun Aug  5 19:31:57 2012  Narihiro Nakamura  <authornari@gmail.com>
+	* ext/socket/ancdata.c (bsock_recvmsg_internal): grow buffer
+	  on unspecified maxdatlen
+	  [ruby-core:71517] [Bug #11701]
+	* ext/socket/lib/socket.rb (Socket#recvmsg): nil default for dlen
+	  (Socket#recvmsg_nonblock): ditto
+	* test/socket/test_socket.rb (test_recvmsg_udp_no_arg): new test
 
-	* gc.c: just move functions and so on. I don't touch any internal
-	  implementation.
+Tue Nov 17 19:50:06 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Sun Aug  5 13:22:29 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* win32/win32.c (fstat): declare for mingw.
 
-	* configure.in: use gcc-4.2 prior to clang, gcc, and cc if exist for
-	  the use of Snow Leopard's old clang. see also r36594, r36610, r36611.
+Tue Nov 17 19:02:59 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Sun Aug  5 06:55:10 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+	* configure.in (BASERUBY): use Kernel#print instead of Kernel#p because
+	  the baseruby may output CRLF as end of line.
 
-	* ext/date/date_{core,strftime}.c: [ruby-core:46990].
+Tue Nov 17 15:34:34 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
+	* NEWS: Added update from Unicode 7.0.0 to 8.0.0 [ci skip]
 
-Sat Aug  4 22:56:20 2012  Narihiro Nakamura  <authornari@gmail.com>
+Tue Nov 17 15:30:30 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
+	* enc/unicode/casefold.h, name2ctype.h: Change Unicode
+	  Version for regular expressions from 7.0.0 to
+	  8.0.0 (with help from Kimihito Matsui) [Feature #11563]
 
-	* gc.c: use inline functions instead of macros, and close up
-	  related codes for the profiler.
+Tue Nov 17 14:36:00 2015  Kenichi Kamiya  <kachick1@gmail.com>
 
-Sat Aug  4 20:37:56 2012  Narihiro Nakamura  <authornari@gmail.com>
+	* lib/ostruct.rb (dig): Implement OpenStruct#dig
+	  [Feature #11688]
 
-	* gc.c (gc_mark_children): use gc_mark_ptr instead of marking
-	  a object directly.
+Tue Nov 17 14:04:14 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Sat Aug  4 10:02:03 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* ext/socket/lib/socket.rb (Socket#recvmsg{,_nonblock}): default values
+	  of clen must be nil.
 
-	* test/ruby/test_alias.rb (test_super_in_aliased_module_method):
-	  add a test case for [ruby-dev:46028], which fails in 1.8.
+	* ext/socket/ancdata.c (bsock_sendmsg_internal): handle nil of clen.
+	  fixes test errors introduced at r52602.
 
-Sat Aug  4 01:56:06 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Nov 17 13:43:46 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* vm_insnhelper.c (vm_search_normal_superclass): no longer needs
-	  receiver, klass is always unique in the ancestors now.
+	* ext/socket/lib/socket.rb: UNIXSocket is not always exists.  fixes
+	  install error on Windows, introduced at r52601.
 
-Sat Aug  4 01:27:40 2012  Shugo Maeda  <shugo@ruby-lang.org>
+Tue Nov 17 11:27:23 2015  Eric Wong  <e@80x24.org>
 
-	* insns.def (invokesuper): reverted r36612 so that super in an
-	  aliased method will not call the same method.
+	* ext/socket/lib/socket.rb (Socket#recvfrom_nonblock):
+	  UDPSocket#recvfrom_nonblock):
+	  update doc for `exception: false` and destination buffer
+	  [ruby-core:69542] [Feature #11229]
+	  [ruby-core:69543] [Feature #11242]
 
-Fri Aug  3 19:26:10 2012  Shugo Maeda  <shugo@ruby-lang.org>
+Tue Nov 17 11:25:05 2015  Eric Turner  <ericturnerdev@gmail.com>
 
-	* insns.def (invokesuper): don't skip the same class.  instead, use
-	  rb_method_entry_get_with_omod() to avoid infinite loop when
-	  super is used with refinements. [ruby-core:30450] [Bug #3351]
+	* array.c (rb_ary_dig), hash.c (rb_hash_dig): [DOC] Update
+	  comments describing dig methods.  [Fix GH-1103]
 
-Fri Aug  3 19:21:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* struct.c (rb_struct_dig): [DOC] add rdoc.
 
-	* configure.in: use clang prior to gcc only when self-compiling on
-	  darwin.  search default compilers on other platforms.  [Bug #6816]
+Tue Nov 17 11:22:22 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
+	* NEWS: Small grammatical fix [ci skip]
 
-Fri Aug  3 17:25:49 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Tue Nov 17 10:12:30 2015  Eric Wong  <e@80x24.org>
 
-	* configure.in: move RUBY_MINGW32 after AC_PROG_CC.
-	  RUBY_MINGW32 uses AC_TRY_CPP and it sets CC and CPP. [Bug #6816]
+	* ext/socket/lib/socket.rb (Socket.accept_loop): avoid exceptions
+	  (Socket.udp_server_recv): ditto
 
-	* configure.in: don't use AC_PROG_CC in AS_CASE.
+Tue Nov 17 09:59:00 2015  Eric Wong  <e@80x24.org>
 
-Fri Aug  3 17:21:52 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/socket/ancdata.c (bsock_sendmsg_internal): avoid arg parsing
+	  [ruby-core:71439] [Feature #11339]
+	  (rsock_bsock_sendmsg): make private, adjust for above
+	  (rsock_bsock_sendmsg_nonblock): ditto
+	* ext/socket/rubysocket.h: adjust prototypes
+	  (rsock_opt_false_p): remove
+	* ext/socket/basicsocket.c (rsock_init_basicsocket):
+	  define private methods
+	* ext/socket/lib/socket.rb (BasicSocket#sendmsg): new wrapper
+	  (BasicSocket#sendmsg_nonblock): ditto
 
-	* test/runner.rb: get rid of loading previously installed gems.
-	  [ruby-dev:46025]
+Tue Nov 17 09:45:18 2015  Eric Wong  <e@80x24.org>
 
-Fri Aug  3 16:40:01 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+	* ext/socket/ancdata.c (bsock_recvmsg_internal): avoid arg parsing
+	  (rsock_bsock_recvmsg): adjust for above change
+	  (rsock_bsock_recvmsg_nonblock): ditto
+	  [ruby-core:71439] [Feature #11339]
+	* ext/socket/rubysocket.h: adjust prototypes for above
+	* ext/socket/basicsocket.c (rsock_init_basicsocket):
+	  adjust private methods
+	* ext/socket/lib/socket.rb (BasicSocket#recvmsg): wrapper method
+	  (BasicSocket#recvmsg_nonblock): ditto
 
-	* .travis.yml (notifications): [experimental] IRC notifications.
+Tue Nov 17 08:36:34 2015  Eric Wong  <e@80x24.org>
 
-Thu Aug  2 20:32:29 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* ext/socket/init.c (rsock_s_accept_nonblock): avoid parsing args
+	  [ruby-core:71439] [Feature #11339]
+	* ext/socket/rubysocket.h: adjust prototype
+	* ext/socket/socket.c (sock_accept_nonblock): make private
+	* ext/socket/tcpserver.c (tcp_accept_nonblock): ditto
+	* ext/socket/unixserver.c (unix_accept_nonblock): ditto
+	* ext/socket/lib/socket.rb (Socket#accept_nonblock):
+	  implement as wrapper, move RDoc
+	  (TCPServer#accept_nonblock): ditto
+	  (UNIXServer#accept_nonblock): ditto
 
-	* eval.c (rb_mod_using): new method Module#using. [experimental]
+Tue Nov 17 08:25:57 2015  Eric Wong  <e@80x24.org>
 
-	* eval.c (rb_mod_refine): new method Module#refine. [experimental]
+	* ext/socket/socket.c (sock_connect_nonblock):
+	  avoid argument parsing in C.
+	  [ruby-core:71439] [Feature #11339]
+	* ext/socket/lib/socket.rb (Socket#connect_nonblock):
+	  new wrapper for private method, move RDoc
 
-	* eval.c (f_using): new method Kernel#using. [experimental]
+Tue Nov 17 08:16:09 2015  Eric Wong  <e@80x24.org>
 
-Thu Aug  2 20:08:02 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* ext/socket/init.c (rsock_s_recvfrom_nonblock):
+	  avoid arg parsing with C API
+	  [ruby-core:71439] [Feature #11339]
+	* ext/socket/basicsocket.c (bsock_recv_nonblock):
+	  adjust for above change, make private
+	* ext/socket/socket.c (sock_recvfrom_nonblock): ditto
+	* ext/socket/udpsocket.c (udp_recvfrom_nonblock): ditto
+	* ext/socket/lib/socket.rb (BasicSocket#recv_nonblock):
+	  new wrapper for private method, move RDoc
+	  (Socket#recvfrom_nonblock): ditto
+	  (UDPSocket#recvfrom_nonblock): ditto
 
-	* class.c, insns.def, method.h, proc.c, vm.c, vm_core.h, vm_eval.c,
-	  vm_insnhelper.c, vm_insnhelper.h, vm_method.c: add klass to
-	  rb_control_frame_t to implement super correctly.
+Mon Nov 16 21:27:54 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-Thu Aug  2 13:23:08 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* test/dtrace/helper.rb (Dtrace::TestCase#trap_probe): dtrace buffer
+	  size is set as 8m on Solaris (default 4m). [Bug #11697]
 
-	* configure.in (AC_PROG_CC): AC_PROG_CC tries clang at first on
-	  darwin. [Bug #6816]
+Mon Nov 16 20:03:14 2015  Naotoshi Seo  <sonots@gmail.com>
 
-Thu Aug  2 11:39:25 2012  Narihiro Nakamura  <authornari@gmail.com>
+	* lib/logger.rb: Add Logger#reopen
 
-	* gc.c: return true or false. Patch by Dirkjan Bussink. [Bug #6821]
+Mon Nov 16 18:21:52 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_gc.rb: add test-case for this bug.
+	* object.c (rb_obj_dig): dig in nested structs too.
 
-Thu Aug  2 10:51:12 2012  Martin Bosslet  <Martin.Bosslet@gmail.com>
+	* struct.c (rb_struct_dig): new method Struct#dig.
+	  [Feature #11688]
 
-	* ext/openssl/lib/openssl/digest.rb
-	  test/openssl/test_digest.rb: Add Digest module function to OpenSSL
-	  module and test it. Patch provided by Eric Hodel.
-	  [ruby-core:46908][Feature #6819]
+Mon Nov 16 17:41:33 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Aug  1 22:29:12 2012  Benoit Daloze  <eregontp@gmail.com>
+	* compile.c (iseq_peephole_optimize): optimize tail calls on aref
+	  and aset specialized instructions.
 
-	* ext/digest/digest.c (hexencode_str_new): return an ASCII string
+	* compile.c (iseq_peephole_optimize): optimize replaced leave
+	  instruction copied to jump instruction too.
 
-	* test/digest: tests for all kind of digests encodings
-	  [ruby-core:46792][Bug #6799]
+Mon Nov 16 16:39:38 2015  Akinori MUSHA  <knu@iDaemons.org>
 
-Wed Aug  1 05:50:53 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+	* lib/set.rb: Enable frozen_string_literal.
 
-	* test/ruby/test_rubyoptions.rb (TestRubyOptions#test_encoding):
-	  Fix test_encoding failure on Windows.
-	  With chcp 65001, 1252 and 437, test_encoding failed. Test result
-	  depends on locale because LANG environment variable doesn't affect
-	  locale on Windows.
-	  [ruby-core:46872] [Bug #6813]
+	* lib/set.rb: Move << out of the begin block that ensures pop.
 
-Wed Aug  1 00:33:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Nov 16 16:28:30 2015  Akinori MUSHA  <knu@iDaemons.org>
 
-	* class.c (include_class_new): fix duplication of prepended module.
-	  since m_tbl of prepended module is always zero, copy from its
-	  copy iclass of original.
+	* lib/set.rb (Hash#flatten!, #add?, #delete?, #collect!, #reject!,
+	  #select!, #^, #classify): Micro-optimize some methods for
+	  performance and readability.
 
-Tue Jul 31 18:22:34 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Nov 16 16:17:58 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* variable.c (classname): tell if found name is permanent.  search
-	  tmp_classpath only if class id is set.  [ruby-core:42865][Bug #6078]
+	* ChangeLog: fixed accidentally commit.
 
-	* variable.c (rb_class_path): duplicate found temporary path.
+Mon Nov 16 16:10:51 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* variable.c (rb_set_class_path_string, rb_set_class_path): set class
-	  id to find classpath.
+	* mkconfig.rb: Add some high-level documentation.
+	  [ci skip][fix GH-1081] Patch by @ulfalizer
 
-Tue Jul 31 10:36:12 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+Mon Nov 16 15:59:14 2015  yui-knk  <spiketeika@gmail.com>
 
-	* ext/psych/lib/psych.rb: updated to released version.
+	* proc.c: Add call-seq of `Method#super_method`
+	  [ci skip][fix GH-1094]
 
-	* ext/psych/psych.gemspec: ditto
+Mon Nov 16 15:58:39 2015  Kenichi Kamiya  <kachick1@gmail.com>
 
-Tue Jul 31 06:18:06 2012  Eric Hodel  <drbrain@segment7.net>
+	* struct.c: Standardize a method signature of Struct#[]=.
+	  [ci skip][fix GH-1095]
 
-	* time.c (time_sec):  Remove extra wording about leap seconds and refer
-	  directly to Wikipedia's leap second page for further information.
-	  [Bug #6749]
+Mon Nov 16 15:42:36 2015  Akinori MUSHA  <knu@iDaemons.org>
 
-Mon Jul 30 23:01:47 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* lib/set.rb (#>=, #>, #<=, #<): Make use of Hash#>=, #>, #<, and
+	  #<= when comparing against an instance of the same kind.
 
-	* lib/rubygems/platform.rb (Gem::Platform#initialize): Support pattern
-	  like x86_64-netbsd6.99.7.
+Mon Nov 16 15:37:11 2015  Naotoshi Seo  <sonots@gmail.com>
 
-Mon Jul 30 21:00:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/logger.rb: Support symbol and string log level setting
 
-	* variable.c (find_class_path): no retry when preferred is given.
+Mon Nov 16 15:33:11 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* variable.c (classname): if classid is set try it to find full
-	  qualified class path, and then try arbitrary class path.  try
-	  tmp_classpath at last even if enclosing namespace is anonymous.
-	  fix r36574.  [ruby-core:42865][Bug #6078]
+	* tool/rbinstall.rb: fix wrong permission for gem specification without
+	  zlib runtime. [Bug #11685][ruby-dev:49343]
 
-	* variable.c (rb_set_class_path_string, rb_set_class_path): set
-	  tmp_classpath instead of classpath if the name is not permanent.
+Mon Nov 16 12:11:11 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Mon Jul 30 14:24:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/webrick/httpauth/basicauth.rb: fix a typo.
+	  [ci skip][fix GH-1099] Patch by @jwworth
+	* lib/webrick/httpauth/digestauth.rb: ditto.
 
-	* variable.c: store anonymous class path in tmp_classpath but not in
-	  classpath.  [ruby-core:42865][Bug #6078]
+Sun Nov 15 18:28:43 2015  Kenichi Kamiya  <kachick1@gmail.com>
 
-Mon Jul 30 13:11:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_method.c (set_method_visibility): should fail if the receiver
+	  is frozen.  [ruby-core:71489] [Bug #11687]
 
-	* configure.in (DLDFLAGS): on Darwin, deprecate -flat_namespace to get
-	  rid of huge imported symbols table.
+Sat Nov 14 22:15:07 2015  Tanaka Akira  <akr@fsij.org>
 
-	* configure.in (LIBRUBY_RELATIVE): libruby_so is not made when
-	  disable-shared, so no absolute path is used for it and executable
-	  file is runnable anywhere.
+	* ext/socket/lib/socket.rb: Specify frozen_string_literal: true.
 
-Mon Jul 30 01:30:10 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+Sat Nov 14 21:44:56 2015  Tanaka Akira  <akr@fsij.org>
 
-	* common.mk: add a dependency. [ruby-core:46741] [Bug #6789]
+	* lib/time.rb: Use "<<" to reduce string allocation.
 
-Sun Jul 29 15:44:47 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+Sat Nov 14 17:45:49 2015  Tanaka Akira  <akr@fsij.org>
 
-	* thread.c (thread_create_core): hide th->async_errinfo_mask_stack from
-	  ObjectSpace.each_object. refix of r36539.
+	* lib/tsort.rb: Specify frozen_string_literal: true.
 
-Sun Jul 29 23:57:27 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Nov 14 17:25:15 2015  Tanaka Akira  <akr@fsij.org>
 
-	* ext/socket/option.c (inet_ntop): use rb_w32_inet_ntop, instead of
-	  inet_ntop directly, which is unavailable on older version Windows.
+	* lib/resolv-replace.rb: Specify frozen_string_literal: true.
 
-	* win32/win32.c (rb_w32_inet_ntop): type should be const.
+Sat Nov 14 17:00:13 2015  Tanaka Akira  <akr@fsij.org>
 
-Sun Jul 29 14:20:34 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* lib/time.rb: Specify frozen_string_literal: true.
 
-	* thread.c (Init_Thread): does not need to set klass
-	  explicitly.
+Sat Nov 14 16:43:02 2015  Tanaka Akira  <akr@fsij.org>
 
-Sun Jul 29 06:21:04 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+	* lib/open3.rb: Specify frozen_string_literal: true.
 
-	* win32/win32.c: suppress warning redeclared on mingw64.
-	  *_s functions are declared if MINGW_HAS_SECURE_API is defined.
-	  Follow up r36556.
+Sat Nov 14 05:04:09 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Jul 29 00:28:46 2012  Narihiro Nakamura  <authornari@gmail.com>
+	* node.h: remove old comments.
 
-	* gc.c: remove unused initialization.
+Sat Nov 14 04:55:36 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Jul 28 16:26:09 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+	* refactoring CREF related code.
 
-	* win32/win32.c (gmtime_r): use _gmtime64_s() with x86_64-w64-mingw32.
+	* eval_intern.h: remove unused setter functions.
+	  CREF_CLASS_SET()
+	  CREF_NEXT_SET()
+	  CREF_SCOPE_VISI_COPY()
 
-	* win32/win32.c (localtime_r): use _localtime64_s() with
-	  x86_64-w64-mingw32. Since FileTimeToSystemTime() seems not work with
-	  large value under x64. Mingw-w64 doesn't have these declaration.
-	  [ruby-core:46780] [Bug #6794]
+	* eval_intern.h: rename flags:
+	  * NODE_FL_CREF_PUSHED_BY_EVAL_ -> CREF_FL_PUSHED_BY_EVAL
+	  * NODE_FL_CREF_OMOD_SHARED_ -> CREF_FL_OMOD_SHARED
+	  and use IMEMO_FL_USER1/2.
 
-Fri Jul 27 18:25:51 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm.c (vm_cref_new): accept push_by_eval parameter.
 
-	* io.c (rb_io_check_io): make public.
+	* vm.c (vm_cref_new_use_prev): added for rb_vm_rewrite_cref().
 
-	* process.c (check_exec_redirect): try conversion to IO on redirect
-	  parameters.  [ruby-core:44181] [Bug #6269]
+	* vm_insnhelper.c (vm_cref_push): accept pushed_by_eval parameter.
 
-Fri Jul 27 17:58:12 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_insnhelper.h: remove unused macros:
+	  COPY_CREF_OMOD() and COPY_CREF().
 
-	* configure.in (RUBY_CPPOUTFILE): get rid of variable conflict so
-	  CPPFLAGS is not duplicated.  [ruby-core:43097] [Bug #6119]
+	* vm_eval.c, insns.def: catch up this fix.
 
-Fri Jul 27 12:12:36 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Sat Nov 14 02:58:03 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* win32/mkexports.rb: should not export DllMain().
-	  reported by luis at [ruby-core:46743] [Bug #6790], solved by
-	  Heesob Park, and confirmed by nobu.
+	* vm.c (vm_define_method): refactoring.
+	  * get CREF in this function.
+	  * cbase is no longer needed (CREF_CLASS(cref) is enough).
 
-Thu Jul 26 14:51:29 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+	* compile.c: RubyVM::FrozenCore.define_method only accept 2 args.
 
-	* test/net/http/test_https.rb (TestNetHTTPS#test_session_reuse):
-	  localhost is not (always) 127.0.0.1.  Don't expect that.
+Sat Nov 14 02:34:43 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Jul 26 07:18:38 2012    <kanemoto@ruby-lang.org>
+	* vm.c (vm_define_method): do not use current CREF immediately,
+	  but check CREF in environment or methods. Methods defined in methods
+	  should be public.
+	  [Bug #11571]
 
-	* ext/json/fbuffer/fbuffer.h: avoid compilation error on AIX by
-	   -ansi -std=iso9899:199409 (r36038). [ruby-core:46744] [Bug #6791].
+	* vm_method.c (rb_scope_module_func_check): check CREF in env or me.
+	  if CREF is contained by `me', then return FALSE.
 
-Thu Jul 26 00:42:23 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+	* test/ruby/test_method.rb: add a test.
 
-	* thread.c (thread_create_core, Init_Thread): hide
-	  th->async_errinfo_queue and th->async_errinfo_mask_stack from
-	  ObjectSpace.each_object.
+Sat Nov 14 02:19:16 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Jul 25 17:41:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* method.h: constify rb_cref_t::scope_visi;
 
-	* complex.c, rational.c: compatible marshal loader for compatibilities
-	  with 1.8.  [ruby-core:45775] [Bug #6625]
+	* eval_intern.h (CREF_SCOPE_VISI_COPY): catch up this fix.
 
-Wed Jul 25 17:17:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_method.c: ditto.
 
-	* atomic.h: prefer GCC atomic builtins than Windows APIs, if possible,
-	  since they are generic.
+Sat Nov 14 01:53:52 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-Wed Jul 25 11:16:57 2012  Eric Hodel  <drbrain@segment7.net>
+	* pack.c (pack_unpack, AVOID_CC_BUG): Very ugly workaround for
+	  optimization bug of Oracle Solaris Studio 12.4 on Solaris
+	  with -xO4 optimization option. [Bug #11684]
 
-	* lib/net/.document:  Removed.  All files in net/ should be included in
-	  RDoc.
+Fri Nov 13 23:00:23 2015  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
 
-Wed Jul 25 10:00:23 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* configure.in: unset LD_PRELOAD on mingw. msys2 child processes
+	  crash at make test-all with LD_PRELOAD.
+	  [ruby-core:71461] [Bug #11680]
 
-	* test/testunit/test_redefinition.rb: broken class/method names.
+Fri Nov 13 14:00:43 2015  Zachary Scott  <zzak@ruby-lang.org>
 
-Wed Jul 25 09:26:32 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* ext/openssl/ossl_pkey.c: Merge ruby/openssl@b9ea8ef [Bug #10735]
 
-	* lib/cgi/html.rb: Use << instead of +=.
-	  `a += b` is syntax sugar of `a = a + b`; it creates a new string
-	  object. `a << b` is concatenation and doesn't create new object.
+Fri Nov 13 13:09:16 2015  Zachary Scott  <zzak@ruby-lang.org>
 
-Wed Jul 25 09:16:26 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* ext/openssl/ossl_ssl.c: Merge ruby/openssl@81e1a30
 
-	* lib/cgi/html.rb (element_init): suppress redefine warning.
-	  Don't define methods if they are already defined.
+	* test/openssl/test_ssl.rb: ditto
 
-Wed Jul 25 09:05:38 2012  Eric Hodel  <drbrain@segment7.net>
+Fri Nov 13 13:05:37 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/net/http.rb:  Added SSL session reuse across connections for a
-	  single instance to speed up connection.  [Feature #5341]
-	* NEWS:  ditto
-	* test/net/http/test_https.rb:  Tests for #5341
+	* prelude.rb (Thread.exclusive): warn as deprecated.
 
-Wed Jul 25 06:54:24 2012  Eric Hodel  <drbrain@segment7.net>
+Fri Nov 13 10:36:39 2015  Victor Nawothnig  <Victor.Nawothnig@gmail.com>
 
-	* doc/re.rdoc:  Fix spelling
+	* parse.y (new_unless): optimize constant condition for `unless`
+	  as well as `if`.  [Fix GH-1092]
 
-Wed Jul 25 06:49:12 2012  Eric Hodel  <drbrain@segment7.net>
+Fri Nov 13 10:08:41 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* re.c (rb_reg_s_last_match):  Update $~ to reference Regexp
-	  documentation about "special global variables".  [Bug #6723]
+	* ext/psych/psych.gemspec: bump version to 2.0.15
 
-Wed Jul 25 06:28:56 2012  Eric Hodel  <drbrain@segment7.net>
+Thu Nov 12 18:44:26 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* iseq.c:  Added documentation.  Patch by David Albert.  [Bug #6785]
+	* parse.y (parser_magic_comment): should match exactly.
+	  [ruby-core:71460] [Bug #11679]
 
-Wed Jul 25 03:05:06 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+Thu Nov 12 16:16:20 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* parse.y: added symbols and qsymbols productions for %i and %I
-	  support. %i{ .. } returns a list of symbols without interpolation,
-	  %I{ .. } returns a list of symbols with interpolation.  Thanks to
-	  Josh Susser for inspiration of this feature. [Feature #4985]
+	* template/prelude.c.tmpl: enable tail call optimization.
 
-	* ext/ripper/eventids2.c: added ripper events for %i and %I.
+Thu Nov 12 14:17:01 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ripper/test_parser_events.rb: ripper tests
+	* parse.y (parser_yylex): ANDDOT at the head of the line denote
+	  line continuation from previous one to support fluent interface,
+	  as well as single dot.
 
-	* test/ripper/test_scanner_events.rb: ditto
+Thu Nov 12 13:49:50 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* test/ruby/test_array.rb: test for %i and %I behavior
+	* lib/rubygems: Update to RubyGems 2.5.0+ HEAD(db78980).
+	  this version includes #1367 , #1373 , #1375
+	* test/rubygems: ditto.
 
-Tue Jul 24 23:34:43 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+Thu Nov 12 10:53:41 2015  Eric Wong  <e@80x24.org>
 
-	* include/ruby/win32.h (rb_w32_pow): add new function.
-	  We use powl() instead of broken pow() for x64-mingw32. This workaround
-	  fixes test failures related to floating point numeric.
-	  [ruby-core:46686] [Bug #6784]
+	* benchmark/bm_io_nonblock_noex2.rb: new benchmark based
+	  on bm_io_nonblock_noex.rb
+	* io.c (io_read_nonblock): move documentation to prelude.rb
+	  (io_write_nonblock): ditto
+	  (Init_io): private, internal methods for prelude.rb use only
+	* prelude.rb (IO#read_nonblock): wrapper + documentation
+	  (IO#write_nonblock): ditto
+	  [ruby-core:71439] [Feature #11339]
 
-Tue Jul 24 15:01:24 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed Nov 11 18:30:28 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* win32/win32.c (rb_w32_socket, rb_w32_socketpair): remember the family
-	  in the high word of socklist value.
+	* sprintf.c (rb_str_format): look up the key, then get default
+	  value and raise KeyError if the returned value is nil.
+	  [ruby-dev:49338] [Ruby trunk - Bug #11677]
 
-	* win32/win32.c (overlapped_socket_io, recvmsg, sendmsg, setfl): follow
-	  above changes.
+Wed Nov 11 17:38:24 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* win32/win32.c (rb_w32_getsockname): set remembered family to the
-	  argument when OS's function fails.
+	* vm_eval.c (local_var_list_add): skip internal local variable
+	  name by its type but not if it has a name.  internal local
+	  variable names are just unique per frame, not globally.
+	  [ruby-core:71437] [Bug #11674]
 
-Tue Jul 24 12:35:13 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed Nov 11 14:14:33 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* test/ruby/test_dir_m17n.rb: remove a garbage.
+	* transcode.c: fix a typo
+	[ci skip][fix GH-1091] Patch by @jwworth
 
-	* test/ruby/test_dir_m17n.rb: convert from ascii-8bit to other encoding
-	  with 8bit bytes always fails.
+Wed Nov 11 11:58:38 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Tue Jul 24 12:32:18 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* lib/net/ftp.rb (initialize): Connections are in passive mode per
+	  default now.  The default mode can be changed by
+	  Net::FTP.default_passive=.
+	  [ruby-core:71146] [Feature #11612]
 
-	* test/ruby/test_dir_m17n.rb: sorry, typo.
+	* lib/net/ftp.rb (default_passive=, default_passive): new methods.
 
-Tue Jul 24 12:13:26 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed Nov 11 09:03:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_dir_m17n.rb: refactoring. RE should be in the left side
-	  of the =~ operator, and compare the result with nil is meaningless.
+	* sprintf.c (rb_str_format): respect default value of a hash.  no
+	  longer raises KeyError unless the default value of the hash is
+	  nil.  [ruby-core:71354] [Bug #11661]
 
-Tue Jul 24 11:35:20 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Tue Nov 10 20:35:12 2015  Tanaka Akira  <akr@fsij.org>
 
-	* test/ruby/test_pack.rb (test_pack_unpack_M): was redefined
-	  accidentally.
+	* lib/open-uri.rb: Remove indicator for "frozen_string_literal: true".
 
-Tue Jul 24 09:31:18 2012  Eric Hodel  <drbrain@segment7.net>
+	* lib/pp.rb: Ditto.
 
-	* lib/rubygems:  Updated to RubyGems 1.8.24, a bugfix release.
+	* lib/prettyprint.rb: Ditto.
 
-Tue Jul 24 08:30:15 2012  Luis Lavena  <luislavena@gmail.com>
+	* lib/resolv.rb: Ditto.
 
-	* test/ruby/test_dir_m17n.rb (create_and_check_raw_file_name): add new
-	  helper method to ease encoding testing. Patch by Oleg Sukhodolsky.
-	  [ruby-core:46589][Bug #6765]
+	* lib/securerandom.rb: Ditto.
 
-	* test/ruby/test_dir_m17n.rb (test_filename_extutf8): use filesystem
-	  encoding when reading entries and comparing.
+	* lib/tmpdir.rb: Ditto.
 
-	* test/ruby/test_dir_m17n.rb (test_filename_utf8_raw_name): removed.
+	* lib/unicode_normalize/tables.rb: Ditto.
 
-	* test/ruby/test_dir_m17n.rb (test_filename_utf8_raw_jp_name): split test.
+	* test/net/ftp/test_buffered_socket.rb: Ditto.
 
-Tue Jul 24 08:09:30 2012  Luis Lavena  <luislavena@gmail.com>
+	* test/net/ftp/test_mlsx_entry.rb: Ditto.
 
-	* test/win32ole/test_win32ole_method.rb (is_ruby64?): Correct platform
-	  used to identify mingw-w64 (x64-mingw32). Patch by Hiroshi Shirosaki.
-	  [ruby-core:46651][Bug #6782]
+	* test/open-uri/test_open-uri.rb: Ditto.
 
-Tue Jul 24 07:22:58 2012  Eric Hodel  <drbrain@segment7.net>
+	* test/open-uri/test_ssl.rb: Ditto.
 
-	* time.c (time_sec):  Updated description of leap seconds for accuracy.
-	  Based on patch by Marcus Stollsteimer.  [Bug #6749]
+	* test/pathname/test_pathname.rb: Ditto.
 
-Tue Jul 24 07:03:11 2012  Eric Hodel  <drbrain@segment7.net>
+	* test/test_pp.rb: Ditto.
 
-	* string.c (rb_str_sub):  Fixed wording of documentation to match the
-	  replacement operation.  Minor cleanup of markup.  [Bug #6719]
-	* string.c (rb_str_sub_bang):  Minor wording change for clarity, minor
-	  cleanup of markup.
+	* test/test_prettyprint.rb: Ditto.
 
-Mon Jul 23 23:58:40 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* tool/transcode-tblgen.rb: Ditto.
 
-	* enc/Makefile.in (TARGET_NAME, TARGET_ENTRY): needed for EXTDLDFLAGS
-	  on some platforms.  [ruby-core:46600] [Bug #6768]
+	* ext/pathname/lib/pathname.rb: Ditto.
 
-	* enc/depend: no longer needs tweaking DLDFLAGS for TARGET names.
+Tue Nov 10 18:42:24 2015  Aleksandrs Ledovskis  <aleksandrs@ledovskis.lv>
 
-Mon Jul 23 22:48:19 2012  Tanaka Akira  <akr@fsij.org>
+	* defs/id.def, parse.y: Switch internal token name to reflect
+	  current form of safe-call operator.  [Fix GH-1090]
 
-	* lib/open-uri.rb: use respond_to? to test Tempfile.
-	  [ruby-dev:45995] [Bug #6781] reported by hsbt (Hiroshi SHIBATA).
+Tue Nov 10 18:25:56 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Jul 23 14:43:34 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* hash.c (rb_hash_to_proc): use rb_func_proc_new to make light
+	  weight proc.  [Feature #11653]
 
-	* configure.in (LIBPATHENV): LIBPATH is used on AIX, but not
-	  SHLIB_PATH which was carelessly copied from HP/UX.  suggested by
-	  Perry Smith at [ruby-core:46397].  [Bug #6728]
+Tue Nov 10 18:23:35 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Jul 23 01:55:08 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	* proc.c (cfunc_proc_t): add room for me.
 
-	* test/uri/test_generic.rb (URI#test_find_proxy): add tests with
-	  empty *_proxy env variables.
+	* proc.c (cfunc_proc_new): generalise for cfunc proc without env.
 
-Mon Jul 23 01:47:26 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	* proc.c (rb_func_proc_new, rb_func_lambda_new): new functions to
+	  make proc/lambda without env from cfunc.
 
-	* test/uri/test_generic.rb (URI#with_env): unset proxy related env
-	  variables.  [Bug #6774]
+Tue Nov 10 17:32:35 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* test/uri/test_generic.rb (URI#test_find_proxy): fix failures
-	  when proxy related env variables already set.  [Bug #6774]
+	* bootstraptest/test_fork.rb ([ruby-dev:37934]): :NPROC (RLIMIT_NPROC)
+	  is not supported on some platforms (e.g. Solaris 10).
 
-Sun Jul 22 23:58:48 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Tue Nov 10 16:57:14 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* thread.c (rb_threadptr_execute_interrupts_common): increase
-	  running_time_us on THREAD_TO_KILL like on THREAD_RUNNABLE.
-	  This cause not to switch from a thread which is to be killed
-	  on FreeBSD and Mac OS X. see also the test.
-	  This issue maybe exist for long time but happens after r36430.
+	* hash.c (rb_hash_to_proc): new method Hash#to_proc.
+	  [Feature #11653]
 
-Sat Jul 21 06:21:45 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Tue Nov 10 14:34:09 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/net/http.rb: fixes for r36476. [Feature #6546]
-	 http://u64.rubyci.org/~chkbuild/ruby-trunk/log/20120720T030101Z.diff.html.gz
+	* time.c (rb_time_timespec_new): swap utc and localtime
+	  to generate gmt flag by INT_MAX - gmtoff.
 
-	* lib/net/http.rb (Net::HTTP.newobj): return back for compatibility.
+Tue Nov 10 14:01:59 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/net/http.rb (Net::HTTP.new): set default_port if proxy port is
-	  not given.
+	* hash.c (rb_hash_{le,lt,ge,gt}): new methods, Hash#<=, Hash#<,
+	  Hash#>=, Hash#>, to test if all elements of a hash are also
+	  included in another hash, and vice versa.
+	  [ruby-core:68561] [Feature #10984]
 
-	* lib/net/http.rb (Net::HTTP#initialize): ditto.
+Tue Nov 10 11:25:29 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/net/http.rb (Net::HTTP#proxy?): return true or false.
+	* time.c (rb_timespec_now): added.  [Feature #11558]
 
-	* lib/net/http.rb (Net::HTTP#proxy_address): check proxy_uri is not nil.
+	* time.c (rb_time_timespec_new): added.  [Feature #11558]
 
-	* lib/net/http.rb (Net::HTTP#proxy_port): ditto.
+Tue Nov 10 06:17:17 2015  Eric Wong  <e@80x24.org>
 
-Sat Jul 21 23:12:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* variable.c (rb_autoload_load): allow recursive calls
+	  [ruby-core:71345] [Bug #11658]
+	* test/ruby/test_autoload.rb (test_autoload_while_autoloading):
+	  new test by: Hiroshi Shirosaki <h.shirosaki@gmail.com>
+	  [ruby-core:71390]
 
-	* thread_pthread.c (ruby_init_stack): STACK_GROW_DIR_DETECTION is
-	  necessary on platforms with unknown stack direction.  [Bug #6761]
+Tue Nov 10 00:36:46 2015  Tanaka Akira  <akr@fsij.org>
 
-Sat Jul 21 15:13:42 2012  Shota Fukumori  <sorah@tubusu.net>
+	* lib/resolv.rb (Resolv::DNS::Message::MessageEncoder#put_labels):
+	  Prevent overflow of pointer to labels.
+	  Patch by Hannes Georg.  [ruby-core:71248] [Bug #11632]
 
-	* lib/test/unit/testcase.rb (method_added): refactoring.
+Tue Nov 10 00:25:41 2015  Kazuki Tsujimoto  <kazuki@callcc.net>
 
-Sat Jul 21 14:06:41 2012  Shota Fukumori  <sorah@tubusu.net>
+	* gems/bundled_gems: update to power_assert 0.2.6.
 
-	* lib/test/unit/testcase.rb: warn when test_* method is redefined.
-	  Patch by mame (Yusuke Endoh). [Feature #2643] [ruby-core:27790]
+Mon Nov  9 21:48:17 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/testunit/test_redefinition.rb: Test for above.
+	* vm_eval.c (rb_check_funcall_default): split from
+	  rb_check_funcall to return the given fallback value.
 
-	* test/testunit/test4test_redefinition.rb: Ditto.
+	* object.c (rb_obj_dig): use rb_check_funcall_default so that tail
+	  call optimization will be possible.  [Feature #11643]
 
-Sat Jul 21 08:41:14 2012  Eric Hodel  <drbrain@segment7.net>
+Mon Nov  9 21:27:23 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/logger.rb:  Updated example in Logger comment to match other
-	  examples and fixed a bug.  Patch by Marcus Stollsteimer.
-	  [Bug #6759]
+	* array.c (rb_ary_dig): new method Array#dig.
 
-Fri Jul 20 17:20:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* hash.c (rb_hash_dig): new method Hash#dig.
 
-	* random.c (rb_random_real): refine error message.
+	* object.c (rb_obj_dig): dig in nested arrays/hashes.
+	  [Feature #11643]
 
-Fri Jul 20 11:03:17 2012  Eric Hodel  <drbrain@segment7.net>
+Mon Nov  9 18:00:47 2015  Yuki Nishijima  <mail@yukinishijima.net>
 
-	* NEWS:  Updated net/http for automatic proxy detection (#6546) and
-	  automatic gzip and deflate compression (#6492, #6494).
+	* gems/bundled_gems: Upgrade the did_you_mean gem to 1.0.0.beta3
 
-Fri Jul 20 10:55:38 2012  Eric Hodel  <drbrain@segment7.net>
+Mon Nov  9 17:38:14 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* lib/net/http.rb:  Net::HTTP now automatically detects and uses
-	  proxies from the environment.  A proxy may also be specified as
-	  before.
+	* test/runner.rb: use official repository for coverage tool.
+	* Makefile.in: ditto.
+	* common.mk: ditto.
+	* .gitignore: ignored third party repositories.
 
-	  Net::HTTP::Proxy still creates anonymous classes, but these classes
-	  are only used to store configuration information.  When an HTTP
-	  instance is created the configuration is now copied.
+Mon Nov  9 17:29:09 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	  Additionally, Net::HTTP::ProxyDelta is no longer used by Net::HTTP
+	* compile.c (iseq_compile_each): Dynamic string literals should be
+	  frozen.
+	  [ruby-core:57574] [Feature #8976]
 
-	  [Feature #6546]
-	* lib/open-uri.rb:  Moved URI::Generic#find_proxy to uri/generic.
-	* lib/uri/generic.rb:  Imported find_proxy from open-uri.
-	* test/open-uri/test_open-uri.rb:  Moved proxy-discovery tests to URI.
-	* test/uri/test_generic.rb:  Imported proxy-discovery tests from
-	  open-uri.
-	* test/net/http/test_http.rb:  Added tests for proxy behavior.
+Mon Nov  9 15:56:07 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Fri Jul 20 09:34:11 2012  Eric Hodel  <drbrain@segment7.net>
+	* common.mk: Use ruby organization url for simplecov repository.
 
-	* test/socket/test_socket.rb:  Ignore IPv6 unique local addresses on OS
-	  X (iCloud Back to my Mac addresses) for test_udp_socket since they do
-	  not act as loopback addresses.  [Bug #6692]
+Sun Nov  8 16:24:09 2015  Masaki Matsushita <glass.saga@gmail.com>
 
-Fri Jul 20 09:32:14 2012  Eric Hodel  <drbrain@segment7.net>
+	* NEWS: describe addition of File::TMPFILE
 
-	* ext/socket/raddrinfo.c (addrinfo_ipv6_unique_local_p):  Added
-	  Addrinfo#ipv6_unique_local? to detect RFC 4193 unique local
-	  addresses.  Part of #6692
-	* ext/socket/rubysocket.h:  Add IN6_IS_ADDR_UNIQUE_LOCAL macro if
-	  missing.
-	* test/socket/test_addrinfo.rb:  Test for ipv6_unique_local?
+Sun Nov  8 15:19:17 2015  Masaki Matsushita <glass.saga@gmail.com>
 
-Fri Jul 20 07:40:32 2012  Eric Hodel  <drbrain@segment7.net>
+	* file.c: Add O_TMPFILE.
 
-	* lib/net/http/response.rb:  Automatically inflate gzip and
-	  deflate-encoded response bodies.  [Feature #6942]
-	* lib/net/http/generic_request.rb:  Automatically accept gzip and
-	  deflate content-encoding for requests.  [Feature #6494]
-	* lib/net/http/request.rb:  Updated documentation for #6494.
-	* lib/net/http.rb:  Updated documentation for #6492 and #6494, removed
-	  Content-Encoding handling now present in Net::HTTPResponse.
-	* test/net/http/test_httpresponse.rb:  Tests for #6492
-	* test/net/http/test_http_request.rb:  Tests for #6494
-	* test/open-uri/test_open-uri.rb (test_content_encoding):  Updated test
-	  for automatic content-encoding handling.
+Sun Nov  8 14:24:43 2015  windwiny  <windwiny.ubt@gmail.com>
 
-Fri Jul 20 03:42:54 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* method.h (METHOD_ENTRY_{VISI,BASIC,FLAGS}_SET): suppress
+	  shift-op-parentheses warnings.  [Fix GH-1082]
 
-	* thread_pthread.c: use #ifdef, not #if.
+Sun Nov  8 14:01:22 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Jul 19 15:08:40 2012  Koichi Sasada  <ko1@atdot.net>
+	* ext/psych/psych_emitter.c: backport 5bd7744 from tenderlove/psych.
+	  support backward compatibility of Ruby 2.0
 
-	* thread.c (rb_thread_s_control_interrupt,
-	            rb_thread_s_check_interrupt): added for
-	  Thread.control_interrupt and Thread.check_interrupt.
-	  See details on rdoc.
-	  I'll make an ticket for this feature.
+Sun Nov  8 10:55:10 2015  Anton Davydov  <antondavydov.o@gmail.com>
 
-	* test/ruby/test_thread.rb: add a test for Thread.control_interrupt.
+	* io.c (rb_io_gets_m): Update IO#gets doc for characters more than
+	  1 byte.  [Fix GH-1085]
 
-	* thread.c (rb_threadptr_raise): make a new exception object
-	  even if argc is 0.
+Sun Nov  8 10:37:58 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* thread.c (rb_thread_kill): kill thread immediately if target thread
-	  is current thread.
+	* lib/uri/ftp.rb: fix a typo.
+	  [fix GH-1084][ci skip] Patch by @windwiny
 
-	* vm_core.h (RUBY_VM_CHECK_INTS_BLOCKING): added.
-	  CHECK_INTS while/after blocking operation.
+Sun Nov  8 08:10:31 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* vm_core.h (RUBY_VM_CHECK_INTS): require rb_thread_t ptr.
+	* vm_trace.c (exec_hooks_precheck): check need_clean everytime
+	  to clean-up unused hooks.
 
-	* cont.c (fiber_switch): use replaced RUBY_VM_CHECK_INTS().
+	* vm_trace.c (list->need_clean): use as boolean value.
 
-	* eval.c (ruby_cleanup): ditto.
+Sun Nov  8 01:31:27 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* insns.def: ditto.
+	* lib/net/http.rb (Net::HTTP#initialize):
+	  default value of Net::HTTP#open_timeout is now 60 (was nil).
 
-	* process.c (rb_waitpid): ditto.
+Sat Nov  7 12:18:05 2015  Eric Wong  <e@80x24.org>
 
-	* vm_eval.c (vm_call0): ditto.
+	* string.c (id_to_s): remove redundant variable
+	  (rb_obj_as_string): trade id_to_s for idTo_s
+	  (rb_str_equal): replace rb_intern(...) with pre-defined ID
+	  (rb_str_cmp_m): ditto
+	  (rb_str_match): ditto
+	  (str_upto_each): ditto
+	  (rb_str_sum): ditto
+	  (Init_String): remove id_to_s initialization
 
-	* vm_insnhelper.c (vm_call_method): ditto.
+Sat Nov  7 11:40:05 2015  Eric Wong  <e@80x24.org>
 
-Thu Jul 19 22:46:48 2012  Tanaka Akira  <akr@fsij.org>
+	* thread.c (rb_cThreadShield): make static
 
-	* test/ruby/test_io.rb: remove temporally files early.
+Sat Nov  7 09:51:38 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Jul 19 15:38:35 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* vm_trace.c (rb_threadptr_exec_event_hooks_orig):
+	  maintain trace_running counter on internal events.
 
-	* variable.c (rb_mod_class_variables): return inherited variables
-	  except when the optional argument is set to false.
-	  [ruby-dev:44034] [Bug #4971]
+	  This patch is made by Takashi Kokubun <takashikkbn@gmail.com>.
+	  [Bug #11603] https://github.com/ruby/ruby/pull/1059
 
-	* variable.c (rb_mod_constants): fix typo in documentation.
+Sat Nov  7 03:32:27 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Jul 19 14:30:43 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* include/ruby/ruby.h (RSTRUCT_PTR): need a close parenthesis.
 
-	* internal.h: move mark function declarations that should be private.
+Sat Nov  7 01:32:06 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-Thu Jul 19 14:18:22 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* dir.c (dir_fileno, dirfd): support of Dir#fileno on Solaris 10.
+	  Solaris 10 does not have dirfd, but the file descriptor of a
+	  directory is stored in the d_fd or dd_fd member in the DIR struct.
+	  Note that Solaris 11 has dirfd(3C).
 
-	* ext/socket/init.c (rsock_init_sock): need to update max fd on all
-	  platforms.
+	* configure.in: checks for DIR.d_fd and DIR.dd_fd on Solaris 10.
 
-Thu Jul 19 14:15:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Nov  6 23:13:53 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
 
-	* thread.c (rb_gc_mark_threads): remove deprecated function.
+	* array.c: clarifies Array#reject! documentation.
+	  [fix GH-894][ci skip] Patch by @GxSplinter
 
-Thu Jul 19 13:28:03 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Fri Nov  6 20:18:25 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* test/net/http/test_http.rb (TestNetHTTPLocalBind#test_bind_to_local*):
-	  re-enable the tests because now it's OK on windows.
+	* test/runner.rb: extracted test helper.
+	* test/lib/zombie_hunter.rb: ditto.
 
-Thu Jul 19 13:26:25 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Fri Nov  6 18:07:47 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* ext/socket/extconf.rb: now enable IPv6 by default on mswin.
+	* include/ruby/ruby.h (rb_array_const_ptr, rb_struct_const_ptr):
+	  Suppress pointer type mismatch warnings occurred with old version
+	  of Fujitsu C Compiler (fcc) on Solaris 10. The warnings cause
+	  failure of TestMkmf::TestConvertible. [Bug #11644] [ruby-dev:49326]
+	* include/ruby/ruby.h (FIX_CONST_VALUE_PTR): macro for the above,
+	  only effective with fcc.
 
-Thu Jul 19 09:33:46 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+Fri Nov  6 12:39:21 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/psych/emitter.c (initialize): allow a configuration object to be
-	  passed to the constructor so that mutation isn't required after
-	  instantiation.
+	* defs/id.def (token_ops), parse.y (parser_yylex): change DOTQ
+	  from ".?" to "&.".  [ruby-core:71363] [Feature #11537]
 
-	* ext/psych/lib/psych/handler.rb: add configuration object
+Fri Nov  6 09:01:26 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/psych/lib/psych/visitors/emitter.rb: use configuration object if
-	  extra configuration is present.
+	* parse.y (kwd_append): fix segv after invalid keyword argument,
+	  preceding keyword list is NULL when syntax error is there.
+	  [ruby-core:71356] [Bug #11663]
 
-Thu Jul 19 08:20:25 2012  Tanaka Akira  <akr@fsij.org>
+Fri Nov  6 06:59:37 2015  Eric Wong  <e@80x24.org>
 
-	* test/ruby/test_file.rb: remove temporally files early.
+	* test/ruby/test_autoload: hoist out ruby_impl_require
 
-Thu Jul 19 07:37:41 2012  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+Thu Nov  5 13:03:58 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/drb/drbtest.rb: fixed: can't delete unix domain sockets problem.
+	* defs/id.def (token_ops): gather associations between IDs,
+	  operators, and parser tokens.
 
-Thu Jul 19 03:41:20 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Thu Nov  5 10:17:17 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* bignum.c: Added #include <strings.h> for ffs(). Patch by Perry
-	  Smith. Thank you. [Bug #6748]
+	* ext/socket/socket.c (make_addrinfo): use RARRAY_ASET for
+	  write-barrier.
 
-Thu Jul 19 01:56:02 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* ext/tk/tcltklib.c ({call,eval,invoke}_queue_handler): ditto.
 
-	* include/ruby/intern.h (rb_num_zerodiv): Added NORETURN.
-	  Patched by Xi Wang. [Bug #6736]
+	* ext/tk/tkutil/tkutil.c (ary2list, ary2list2): ditto.
 
-Wed Jul 18 23:57:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Nov  5 10:09:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* pack.c (pack_pack): round down too long uuencode width.  folding
-	  width in uuencode format cannot be longer than 63 bytes.
+	* ext/**/*.c: prefer RARRAY_AREF to indexing RARRAY_CONST_PTR.
+	  pointed out by hanmac.
+	  https://github.com/ruby/ruby/commit/3553a86#commitcomment-14187670
 
-Wed Jul 18 23:04:18 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Wed Nov  4 17:33:24 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/dbm/dbm.c (fdbm_empty_p): fix wrong condition introduced in r36438.
+	* lib/debug.rb: Add documentation for #thread_list_all.
+	  [Misc #11580][ci skip]
 
-	* ext/sdbm/init.c (fsdbm_empty_p): ditto.
+Wed Nov  4 15:45:59 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Wed Jul 18 23:08:57 2012  Tanaka Akira  <akr@fsij.org>
+	* class.c: fix documentation for rb_define_class{_id}_under.
+	  [fix GH-991][ci skip] Patch by @kachick
 
-	* test/ruby/test_beginendblock.rb: remove temporally files early.
+Wed Nov  4 15:40:45 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Wed Jul 18 22:43:02 2012  Tanaka Akira  <akr@fsij.org>
+	* method.h: fix typo. Patch by @davydovanton
+	  [fix GH-1076][ci skip]
 
-	* test/ruby/test_autoload.rb: remove temporally files early.
+Wed Nov  4 15:39:32 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Wed Jul 18 21:59:46 2012  Tanaka Akira  <akr@fsij.org>
+	* hash.c: use correct grammar. Patch by @tveastman
+	  [fix GH-1079][ci skip]
 
-	* test/ruby/test_argf.rb: use temporally directory.
+Wed Nov  4 11:38:23 2015  Jake Worth  <jakeworth82@gmail.com>
 
-Wed Jul 18 19:41:19 2012  Tanaka Akira  <akr@fsij.org>
+	* process.c (proc_getsid): [DOC] Fix double word 'for' and typo.
+	  [Fix GH-1080]
 
-	* test/openssl/test_config.rb: remove temporally files early.
+Wed Nov  4 06:01:52 2015  Eric Wong  <e@80x24.org>
 
-Wed Jul 18 17:45:26 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* include/ruby/ruby.h (struct RObject): hide iv_index_tbl type
+	  [ruby-core:71306] [Feature #11647]
 
-	* error.c (rb_builtin_type_name): map by index.
+Tue Nov  3 06:48:58 2015  Eric Wong  <e@80x24.org>
 
-Wed Jul 18 16:17:40 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* variable.c (find_class_path): remove cast for rb_class_ivar_set
+	  (rb_ivar_set): ditto
+	  (rb_cvar_set): ditto
 
-	* lib/mkmf.rb (have_framework): get rid of separating -framework
-	  option and its argument and dealing with the argument as a library
-	  or an object name.  if $LDFLAGS were an array...
+Tue Nov  3 06:18:21 2015  Eric Wong  <e@80x24.org>
 
-Wed Jul 18 16:09:10 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* variable.c (rb_global_tbl): convert to id_table
 
-	* ext/curses/extconf.rb: support PDCurses.  patched by Luis Lavena.
-	  [ruby-core:46485] [Feature #6735]
+Tue Nov  3 01:58:46 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-Wed Jul 18 15:50:25 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* parse.y (NO_QCALL): fix type mismatch of operands that causes
+	  compile error with Oracle Solaris Studio on Solaris.
+	  [Bug #11645] [ruby-dev:49327]
 
-	* parse.y (primary): allow an empty grouped expression as the
-	  operand of the not operator (e.g., not ()).
-	  [ruby-core:45976] [Bug #6674]
+Sun Nov  1 17:14:36 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* parse.y (parser_yylex): show no warning for a grouped expression
-	  as the operand of the not operator (e.g., not (a)) or as an
-	  argument of a method call without parentheses (e.g., foo (a)).
-	  [ruby-core:39050] [Bug #5214]
+	* id_table.c (mix_id_table_insert): do not touch list during
+	  list->hash transition because GC can run during transition.
 
-Wed Jul 18 15:33:21 2012  Koichi Sasada  <ko1@atdot.net>
+Sun Nov  1 11:07:31 2015  Eric Wong  <e@80x24.org>
 
-	* thread.c (rb_thread_call_without_gvl2): added.
-	  it can skip last CHECK_INTS.  See document for more details.
-	  Document about it was updated a bit.
+	* iseq.c (iseq_memsize): account for rb_call_cache entries
 
-	* include/ruby/thread.h (decl. of rb_thread_call_without_gvl2): added.
+Sun Nov  1 09:12:10 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* thread.c (rb_thread_call_with_gvl): remove "EXPERIMENTAL!"
-	  warning from a document.
+	* parse.y (parser_yylex): ':' separated by a comment and a newline
+	  is not valid as symbol.
 
-Wed Jul 18 14:53:21 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Oct 31 20:15:48 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* configure.in (EXTDLDFLAGS): split options for each extension
-	  libraries, and unused in ruby.pc.  [Bug #6734]
+	* test/openssl/test_pair.rb: skipped tests if openssl doesn't support
+	  ECDH cipher.
 
-	* lib/mkmf.rb (MakeMakefile#configuration): add EXTDLDFLAGS.
+Sat Oct 31 14:58:10 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Jul 18 14:47:23 2012  Koichi Sasada  <ko1@atdot.net>
+	* man/ruby.1 (SYNOPSIS): remove extraneous space for -F option as
+	  it does not allow spaces before its argument.
+	  [ruby-core:71283] [Bug #11641]
 
-	* thread.c: fix last commit miss.
+Sat Oct 31 14:58:01 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Jul 18 14:16:51 2012  Koichi Sasada  <ko1@atdot.net>
+	* man/ruby.1 (SYNOPSIS): remove extraneous space for -F option as
+	  it does not allow spaces before its argument.
+	  [ruby-core:71283] [Bug #11641]
 
-	* thread.c (rb_threadptr_async_errinfo_*): manage async errors queue.
-	  Async events such as an exception throwed by Thread#raise,
-	  Thread#kill and thread termination (after main thread termination)
-	  will be queued to th->async_errinfo_queue.
-	  - clear: clear the queue.
-	  - enque: enque err object into queue.
-	  - deque: deque err object from queue.
-	  - active_p: return 1 if the queue should be checked.
-	  rb_thread_t#thrown_errinfo was removed.
+Sat Oct 31 10:22:49 2015  yui-knk  <spiketeika@gmail.com>
 
-	* vm_core.h: add declarations of rb_threadptr_async_errinfo_*.
-	  remove rb_thread_t#thrown_errinfo field and
-	  add rb_thread_t#async_errinfo_queue (queue body: Array),
-	      rb_thread_t#async_errinfo_queue_checked (flag),
-	      rb_thread_t#async_errinfo_mask_stack(Array, not used yet).
+	* eval_error.c (undef_mesg_for): fix typo.  Before this commit
+	  `ArgumentError: malformed format string - %$` was raised when
+	  `NameError#message` is called.  [ruby-core:71282] [Bug #11640]
+	  [Fix GH-1077]
 
-	* vm.c (rb_thread_mark): fix a mark function.
+Fri Oct 30 21:12:45 2015  Kazuki Tsujimoto  <kazuki@callcc.net>
 
-	* cont.c (rb_fiber_start): enque an error.
+	* gems/bundled_gems: update to power_assert 0.2.5.
 
-	* process.c (after_fork): clear async errinfo queue.
+Fri Oct 30 19:29:52 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Jul 18 14:25:55 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+	* gc.c (newobj_slowpath): do not need to use flags hack (commit miss).
 
-	* pack.c: (ditto) bitwise operations are not char.  Apply explicit
-	  casts on them.
+Fri Oct 30 19:08:48 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Jul 18 12:59:50 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+	* gc.c (heap_get_freeobj_from_next_freepage): not so UNLIKELY.
 
-	* encoding.c (load_encoding): explicit cast  to suppress  warning.
-	  Though the  cast truncates some bits, from  heuristic analysis I
-	  believe it is OK to do so here.
+Fri Oct 30 18:09:51 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* bignum.c (rb_cstr_to_inum): ditto.
+	* gc.c (newobj_slowpath): reduce 1 parameter to use only registers
+	  for performance.
 
-Wed Jul 18 12:55:54 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	  On my laptop, 'N.times{x = []}' (where N = 29_000_000) is
+	  1.86 sec -> 1.74 sec.
 
-	* lib/benchmark.rb: Fix Benchmark.benchmark output with an empty
-	  caption.  patched by Benoit Daloze. [ruby-core:45719] [Bug #6610]
+Fri Oct 30 12:53:21 2015  yui-knk  <spiketeika@gmail.com>
 
-Wed Jul 18 10:00:54 2012  Eric Hodel  <drbrain@segment7.net>
+	* test/ruby/test_call.rb: added test for safe navigation operator.
+	  [fix GH-1066]
 
-	* lib/debug.rb:  Added toplevel documentation.  Based on patch by Oscar
-	  Del Ben.  [Bug #6743], fixes #146 on github.
+Fri Oct 30 12:47:34 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Wed Jul 18 09:33:59 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* ChangeLog: fix wrong commit name.
 
-	* test/win32ole/test_win32ole_event.rb (TestWIN32OLE_EVENT): use
-	  standard skip method to skip tests.
+Fri Oct 30 12:36:16 2015  yui-knk  <spiketeika@gmail.com>
 
-Wed Jul 18 09:26:45 2012  Eric Hodel  <drbrain@segment7.net>
+	* vm_method.c: added documentation of protected/private methods.
+	  [fix GH-1072]
+	* test/ruby/test_module.rb: added testcase for method_defined?
+	  [fix GH-1071]
 
-	* lib/logger.rb:  Updated typos and output to match modern Logger
-	  output.  Patch by Marcus Stollsteimer.  [Bug #6738]
+Fri Oct 30 12:06:59 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Jul 18 07:59:29 2012  Takeyuki FUJIOKA  <xibbar@ruby-lang.org>
+	* variable.c (rb_class_ivar_set): rename as class specific ivar
+	  setter, and st_table is no longer involved.
 
-	* lib/cgi/util.rb (CGI.escapeHTML,unescapeHTML): Add &apos; for HTML5
-	  escaping.
-	  [Feature #6620]
+Fri Oct 30 11:36:33 2015  Eric Wong  <e@80x24.org>
 
-Tue Jul 17 22:17:13 2012  Tanaka Akira  <akr@fsij.org>
+	* variable.c (generic_ivar_remove): adjust type, set valp
+	  (rb_obj_remove_instance_variable): simplify call
+	* test/ruby/test_object.rb (test_remove_instance_variable):
+	  expand for implementation details
 
-	* lib/open-uri.rb: call io.close! for Tempfile.
+Fri Oct 30 10:37:56 2015  Eric Wong  <e@80x24.org>
 
-Tue Jul 17 16:41:32 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* internal.h (rb_st_insert_id_and_value): update prototype
+	* variable.c (rb_st_insert_id_and_value): reduce args
+	  (find_class_path): adjust call for less args
+	  (rb_ivar_set): ditto
+	  (rb_cvar_set): ditto
+	* class.c (rb_singleton_class_attached): ditto
 
-	* proc.c (rb_proc_arity): return normal value (not -n-1) if it is not
-	  a labmda, or it is a labmda and no arg_opts. [Bug #5694]
+Fri Oct 30 09:57:22 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Jul 17 03:56:34 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+	* gems/bundled_gems: update latest gems.
+	  test-unit-3.1.5 and minitest-5.8.2
 
-	* ext/psych/lib/psych/visitors/to_ruby.rb: strings with YAML anchors
-	  are properly referenced. Patched by Joe Rafaniello via Github:
-	    https://github.com/tenderlove/psych/pull/69
-	* ext/psych/lib/psych/visitors/yaml_tree.rb: ditto
-	* test/psych/test_alias_and_anchor.rb: test for change
+Fri Oct 30 09:54:05 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Mon Jul 16 23:20:24 2012  Tanaka Akira  <akr@fsij.org>
+	* lib/rubygems: Update to RubyGems HEAD(60d7972).
+	  this version contains pull requests number of #1343, #1356, #1357, #1363
+	  at https://github.com/rubygems/rubygems/pulls
+	* test/rubygems: ditto.
 
-	* bignum.c (rb_integer_float_cmp): use FIXNUM_MIN and FIXNUM_MAX,
-	  instead of LONG_MIN and LONG_MAX.
+Fri Oct 30 07:38:29 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Jul 16 22:50:41 2012  Tanaka Akira  <akr@fsij.org>
+	* insns.def (getinlinecache/setinlinecache): compare ic->ic_cref and
+	  current cref only when cached CREF list includes singleton class.
 
-	* numeric.c (flo_to_s): use the exponential form if the integer part
-	  is longer than or equal DBL_DIG.
-	  [ruby-dev:45960] [ruby-trunk - Bug #6741]
+	  Singleton classes have own namespaces, so that we need to check
+	  cref as a key (#10943).
 
-Mon Jul 16 22:01:00 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	  However, if current CREF list does not include singleton class,
+	  no need to check CREF because it should be same name space.
 
-	* ext/readline/readline.c: fixed docs. [Bug #6740][ruby-core:46501]
-	  patched by Nobuhiro IMAI.
+	* vm_insnhelper.c (vm_get_const_key_cref): add a function returns
+	  CREF only when it includes singleton class.
 
-Mon Jul 16 19:24:01 2012  Tanaka Akira  <akr@fsij.org>
+	* vm_core.h: constify iseq_inline_cache_entry::ic_cref.
 
-	* bignum.c (rb_integer_float_eq): new function.
-	  (rb_big_eq): use rb_integer_float_eq.
+Fri Oct 30 06:43:50 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* internal.h (rb_integer_float_eq): declared.
+	* vm_insnhelper.c (vm_env_cref): make it inline for performance.
 
-	* numeric.c (flo_eq): use rb_integer_float_eq.
-	  (fix_equal): ditto.
+	* vm_insnhelper.c (rb_vm_get_cref): use NULL instead of 0.
 
-Mon Jul 16 19:02:31 2012  Tanaka Akira  <akr@fsij.org>
+Fri Oct 30 06:20:40 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* bignum.c (rb_integer_float_cmp): rename a local variable.
+	* insns.def: nobody set ic->ic_value.value to Qundef.
 
-Mon Jul 16 18:40:26 2012  Tanaka Akira  <akr@fsij.org>
+Fri Oct 30 06:15:50 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* bignum.c (rb_integer_float_cmp): renamed from rb_big_float_cmp.
+	* vm.c: add ifndef guard for VM_CHECK_MODE.
 
-	* internal.h: follow the above change.
+Fri Oct 30 06:13:10 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* numeric.c: ditto.
+	* vm_insnhelper.c (vm_check_frame_detail): should require me for
+	  VM_FRAME_FLAG_BMETHOD type frame.
 
-Mon Jul 16 17:57:54 2012  Tanaka Akira  <akr@fsij.org>
+Thu Oct 29 18:42:30 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* bignum.c (rb_big_float_cmp): compare an integer and float precisely.
-	  [ruby-core:31376] [Bug #3589] reported by Tomasz Wegrzanowski.
+	* gc.c (gc_mark_ptr): specify NOINLINE so that gc_mark() can return
+	  immediately when obj is not a markable object.
 
-Mon Jul 16 17:29:45 2012  Tanaka Akira  <akr@fsij.org>
+Thu Oct 29 18:05:22 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* bignum.c (rb_big_float_cmp): support fixnum for argument x.
+	* encoding.c (rb_enc_check_str): add for performance.
+	  This function only accepts T_STRING (and T_REGEXP).
 
-	* numeric.c (fix_equal): use rb_big_float_cmp.
-	  (fix_cmp): ditto.
-	  (fix_gt): ditto.
-	  (fix_ge): ditto.
-	  (fix_lt): ditto.
-	  (fix_le): ditto.
-	  (flo_eq): ditto.
-	  (flo_cmp): use rb_big_float_cmp for fixnum argument.
-	  (flo_gt): ditto.
-	  (flo_ge): ditto.
-	  (flo_lt): ditto.
-	  (flo_le): ditto.
+	  This patch improves performance of a tiny_segmenter benchmark
+	  (num=2) 2.54sec -> 2.42sec on my machine.
+	  https://github.com/chezou/TinySegmenter.jl/blob/master/benchmark/benchmark.rb
 
-Mon Jul 16 17:05:53 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* encoding.c: add ENC_DEBUG and ENC_ASSERT() macros.
 
-	* test/fileutils/test_fileutils.rb: add test for FileUtils#uptodate?
+	* internal.h: add a decl. of rb_enc_check_str().
 
-Mon Jul 16 16:56:12 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* string.c (rb_str_plus): use rb_enc_check_str().
 
-	* lib/fileutils.rb (FileUtils.uptodate?): remove useless parameter.
-	  patched by Oscar Del Ben.[Bug #6708][ruby-core:46256]
+	* string.c (rb_str_subpat_set): ditto.
 
-Mon Jul 16 15:37:56 2012  Tanaka Akira  <akr@fsij.org>
+Thu Oct 29 17:16:40 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* bignum.c (rb_big_eq): use rb_big_float_cmp.
+	* internal.h: export rb_wb_(un)protected_newobj_of()
+	  because some extensions include internal.h.
 
-Mon Jul 16 15:00:45 2012  Tanaka Akira  <akr@fsij.org>
+Thu Oct 29 16:42:19 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* internal.h (rb_big_float_cmp): declared.
+	* gc.c (rb_imemo_new): should not pass FL_WB_PROTECTED flag.
 
-	* bignum.c (rb_big_float_cmp): extracted from rb_big_cmp and big_op.
-	  (rb_big_cmp): use rb_big_float_cmp.
-	  (big_op): ditto.
+	* gc.c (rb_wb_protected_newobj_of): add more assertions.
 
-	* numeric.c (flo_cmp): use rb_big_float_cmp.
-	  (flo_gt): ditto.
-	  (flo_ge): ditto.
-	  (flo_lt): ditto.
-	  (flo_le): ditto.
+	* gc.c (rb_wb_unprotected_newobj_of): ditto.
 
-Mon Jul 16 14:14:21 2012  Tanaka Akira  <akr@fsij.org>
+Thu Oct 29 16:20:26 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* bignum.c (enum big_op_t): new type.
-	  (big_op): use enum big_op_t.
-	  (big_gt): ditto.
-	  (big_ge): ditto.
-	  (big_lt): ditto.
-	  (big_le): ditto.
+	* gc.c: introduce rb_wb_unprotected_newobj_of() and
+	  rb_wb_protected_newobj_of(), pass the WB_PROTECTED
+	  information explicitly.
 
-Sat Jul 14 18:18:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* internal.h: use introduced functions by NEWOBJ_OF().
+	  `flag' is immediate value, so that C compilers can
+	  solve them at compile time.
 
-	* array.c (rb_get_values_at): fill with nil out of range.
-	  [ruby-core:43678] [Bug #6203]
+	* include/ruby/ruby.h: add a comment about that.
 
-Sat Jul 14 17:17:55 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+Thu Oct 29 14:52:03 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* cont.c (cont_restore_0): improve docs. [Bug #6706][ruby-core:46243]
-	  patched by Oscar Del Ben via https://github.com/ruby/ruby/pull/140
+	* gc.c: add rb_objspace::flags::has_hook to represent hook availability.
 
-Sat Jul 14 17:08:13 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gc.c: add gc_event_hook_available_p(objspace) to check that flag.
 
-	* hash.c (rb_hash_s_create): raise an exception, when input elements
-	  are not one or two elements arrays.  [ruby-core:39945] [Bug #5406]
+	* gc.c (newobj_of): use gc_event_hook_available_p() instead of
+	  checking gc_event_hook_needed_p(objspace, RUBY_INTERNAL_EVENT_NEWOBJ).
+	  for performance.
 
-Sat Jul 14 16:16:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gc.c (newobj_init): add UNLIKELY() for FL_WB_PROTECTED flag.
 
-	* lib/test/unit.rb (Test::Unit::Runner#_run_parallel): use
-	  Array#uniq!.
+	* gc.c (newobj_init): change parameters order (trivial change).
 
-	* lib/test/unit.rb (Test::Unit::Runner#deal): deal tasks to workers.
+Thu Oct 29 14:45:15 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/test/unit.rb (Test::Unit::Runner#quit_workers): close and kill
-	  all workers.
+	* vm_core.h (rb_thread_struct): move forward declarations before
+	  used.
 
-	* lib/test/unit.rb (Test::Unit::Runner#delete_worker): delete dead
-	  worker from working set.
+Thu Oct 29 14:07:54 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/test/unit.rb (Test::Unit::Runner#launch_worker): add new worker
-	  to working set.
+	* gc.c (gc_mark_ptr): remove debug code for #11244.
 
-	* lib/test/unit.rb (Test::Unit::Runner#launch_worker): extract.
+Thu Oct 29 10:08:33 2015  Eric Wong  <e@80x24.org>
 
-	* lib/test/unit.rb (Test::Unit::Runner#start_watchdog): extract.
+	* variable.c (struct autoload_state): usable as wait-queue head
+	  (struct autoload_data_i): remove 2 words of overhead
+	  (autoload_i_mark): remove marking for thread
+	  (autoload_reset): adjust for struct changes
+	  (rb_autoload): ditto
+	  (rb_autoloading_value): ditto
+	  (rb_autoload_load): ditto
+	  (const_update): ditto
 
-	* lib/test/unit.rb (Test::Unit::Runner#_run_parallel): move
-	  initializations with nothing to release outside begin/ensure.
+Thu Oct 29 08:48:05 2015  Eric Wong  <e@80x24.org>
 
-Sat Jul 14 16:04:24 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* variable.c (struct autoload_data_i): add waitq_head
+	  (struct autoload_state): new struct
+	  (autoload_require): save result in autoload_state for use
+	    in autoload_reset
+	  (autoload_reset): wake up other waiters with open-coded
+	    wait-queues
+	  (rb_autoload_load): add ensure autoload_const_set happens
+	    atomically w.r.t. autoload-triggered "require"
+	  [ruby-core:70075] [ruby-core:71239] [Bug #11384]
 
-	* array.c (rb_ary_join): should not infected by separator if it is not
-	  used.  [ruby-core:42161][Bug #5902]
+Wed Oct 29 00:39:50 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-Sat Jul 14 02:31:55 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/rubygems/test_gem_commands_server_command.rb
+	  (test_handle_options_port): change port from http to discard.
+	  Solaris does not include "http 80/tcp" in its default
+	  /etc/inet/services. AFAIK, discard (9/tcp) is older than http
+	  and it is expected that all OS can resolve the service name.
+	  [Bug #10004] [ruby-core:63518]
 
-	* include/ruby/intern.h (rb_thread_blocking_region): fix declarations
-	  prototypes without arguments in C++ have different meanings than C.
+Wed Oct 28 23:52:48 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-Thu Jul 12 12:32:26 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* probes_helper.h (RUBY_DTRACE_HOOK): add RB_GC_GUARD, though paranoic.
 
-	* test/runner.rb: skip default gems to get rid of loading old versions
-	  before installation.
+Wed Oct 28 15:36:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Jul 12 11:44:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* error.c (rb_name_err_new): store the receiver directly.
 
-	* string.c (rb_str_new_frozen): since the result object should have
-	  same tainted/untrusted bits with the original object, return new
-	  object if the shared object unmatch.  [ruby-core:39745][Bug #5374]
+	* error.c (name_err_receiver): return directly stored receiver.
+	  [Feature #10881]
 
-Thu Jul 12 10:46:39 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* error.c (name_err_mesg_to_str): quote the name if unprintable.
 
-	* test/net/http/test_http.rb (TestNetHTTPLocalBind#test_bind_to_local*):
-	  cannot cross between network interfaces on Windows, so skip this test
-	  until we find better test.
+	* object.c (check_setter_id): use rb_check_id to convert names.
 
-Thu Jul 12 08:48:33 2012  Ryan Davis  <ryand-ruby@zenspider.com>
+	* variable.c (uninitialized_constant): use NameError::message to
+	  keep the receiver of uninitialized constant.  [Feature #10881]
 
-	* lib/minitest/*: Imported minitest 3.2.0 (r7598)
-	* test/minitest/*: ditto
+	* error.c (rb_name_err_new): new function to create NameError
+	  exception instance.  [Feature #10881]
 
-Thu Jul 12 05:11:41 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Oct 28 13:29:39 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* insns.def (defined): use method entry and id in cfp for proper
-	  superclass, since klass in iseq is shared by dynamically defined
-	  methods from the same block.  [ruby-core:45831][Bug #6644]
+	* parse.y (new_attr_op_assign): fix op_assign type, which is
+	  already an ID since r52284.  [Feature #11537]
 
-Thu Jul 12 01:49:07 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Tue Oct 27 23:14:14 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/net/http.rb (Net::HTTP#connect): use local_host and local_port
-	  if specified. patched by Ricardo Amorim [Feature #6617]
+	* defs/id.def: enable anonymous IDs not to expose internal IDs for
+	  frozen-string-literal-debug by Marshal.dump.
 
-Wed Jul 11 17:36:39 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Oct 27 17:06:55 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/extmk.rb: append ENCOBJS to DLDOBJS but not EXTSOLIBS which is
-	  not a target, to compile enc/encinit.c.
+	* defs/id.def: move internal IDs for frozen-string-literal-debug.
 
-Wed Jul 11 12:38:20 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Tue Oct 27 16:41:05 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/openssl/ossl_pkey_ec.c (ossl_ec_point_mul): nonstatic initializer
-	  of an aggregate type is a C99ism.
+	* error.c (rb_error_frozen_object): use rb_attr_get instead of
+	  rb_ivar_get to get rid of warnings for string objects created
+	  when frozen-string-literal-debug is disabled.
 
-	* ext/openssl/ossl_pkey_ec.c (ossl_ec_point_mul): get rid of VC++
-	  warnings.
+Tue Oct 27 16:18:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Jul  9 16:11:30 2012  Yuki Yugui Sonoda  <yugui@google.com>
+	* lib/logger.rb (Logger::Period#previous_period_end): as weekly
+	  rotation shifts the log file on Sundays, the end date of the
+	  previous period should be Saturdays.  fix r45072.
+	  [ruby-dev:49314] [Bug #11622]
 
-	* vm_eval.c (rb_eval_string_from_file,
-	  rb_eval_string_from_file_protect): new functions to replace
-	  rb_compile_main_from_string() and ruby_eval_main().
+Tue Oct 27 16:12:37 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* nacl/pepper_ruby.c: Follows the change in vm_eval.c
+	* vm_dump.c (rb_print_backtrace): our addr2line doesn't work on sparc.
+	  http://rubyci.s3.amazonaws.com/unstable11s/ruby-trunk/log/20151027T043311Z.log.html.gz
 
-Mon Jul  9 14:05:42 2012  Yuki Yugui Sonoda  <yugui@google.com>
+Tue Oct 27 12:00:33 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	Reverts a half of r36079. As we discussed on ruby-dev@ and IRC,
-	we do not need to disclose intermediate representation of program.
-	The program embedding CRuby should use rb_eval_string family.
-	* include/ruby/ruby.h (ruby_opaque_t): removed.
-	  (ruby_compile_main_from_file, ruby_compile_main_from_string,
-	   ruby_eval_main): removed.
+	* lib/logger.rb (Logger::Period#next_rotate_time): get rid of
+	  adding to mday not to exceed the days of the month.
+	  [ruby-core:71185] [Bug #11620]
 
-	* eval.c (ruby_eval_main_internal): became ruby_exec_internal() again.
-	  (ruby_eval_main): removed.
+Mon Oct 26 22:43:03 2015  yui-knk  <spiketeika@gmail.com>
 
-	* ruby.c (PREPARE_PARSE_MAIN) reverted.
-	  (parse_and_compile_main, ruby_compile_main_from_file,
-	   ruby_compile_main_from_string): removed
+	* test/ruby/test_module.rb (test_method_defined): Add test cases
+	  for `public/protected/private _method_defined?`
+	  These methods accept string as argument, so add string argument
+	  cases.  [Fix GH-1067]
 
-Wed Jul 11 10:16:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Oct 26 22:23:30 2015  SimonDKnight  <simondknight@hotmail.com>
 
-	* include/ruby.h (HAVE_RUBY_THREAD_H): to show ruby/thread.h to be
-	  available.  fixup of r36355.
+	* lib/racc/rdoc/grammar.en.rdoc: Grammatical errors fixed.
+	  [Fix GH-1070]
 
-Wed Jul 11 03:26:47 2012  Eric Hodel  <drbrain@segment7.net>
+Mon Oct 26 18:36:43 2015  Shota Fukumori (sora_h) <her@sorah.jp>
 
-	* ext/zlib/zlib.c:  Added streaming support to inflate processing.
-	  This allows zlib streams to be processed without huge memory growth.
-	  [Feature #6612]
-	* NEWS:  ditto
-	* ext/zlib/zlib.c (zstream_expand_buffer):  Uses rb_yield when a block
-	  is given for streaming support.  Refactored to use
-	  zstream_expand_buffer_into to remove duplicate code.
-	* ext/zlib/zlib.c (zstream_expand_buffer_protect):  Added wrapper
-	  function to pass jump state back through GVL-free section to allow
-	  zstream clean-up before terminating the ruby call.
-	* ext/zlib/zlib.c (zstream_expand_buffer_without_gvl):  Acquire GVL to
-	  yield processed chunk of output stream.
-	* ext/zlib/zlib.c (zstream_detach_buffer):  When a block is given,
-	  returns Qnil mid-stream and yields the output buffer at the end of
-	  the stream.
-	* test/zlib/test_zlib.rb:  Updated tests
+	* vm_method.c(rb_method_entry_make):
+	  [DOC] [ci skip] Remove a needless space from comment
+	  [Fixes GH-1069] Patch by @yui-knk
 
-Tue Jul 10 22:57:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Oct 26 17:30:13 2015  Ryan Hosford  <tad.hosford@gmail.com>
 
-	* include/ruby/thread.h: new header file for thread stuff.
+	* lib/fileutils.rb: rename tailing to trailing.
+	  [Misc #11548]
 
-	* thread.c (rb_thread_call_without_gvl): export.  [Feature#4328]
-	  returns void* instead of VALUE.  [Feature #5543]
+Mon Oct 26 17:11:53 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* thread.c (rb_thread_blocking_region): deprecate.  [ruby-core:46295]
+	* parse.y (call_op, call_op2): fix values on ripper.  [Feature #11537]
 
-Tue Jul 10 10:48:59 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Mon Oct 26 12:55:06 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* include/ruby/win32.h (NT, NtInitialize): removed unused old macros.
+	* parse.y (call_op2): separate from call_op and also allow "::",
+	  while dot_or_colon should not allow ".?".  [Feature #11537]
 
-Tue Jul 10 10:43:37 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Mon Oct 26 01:03:23 2015  Rei Odaira  <Rei.Odaira@gmail.com>
 
-	* configure.in: removed --enable/disable-win95 options. (see r36342)
+	* thread_pthread.c: fix compile errors when
+	  USE_SLEEPY_TIMER_THREAD is disabled.
 
-Tue Jul 10 00:44:41 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Sun Oct 25 10:12:05 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* include/ruby/ruby.h: Removed RUBY_GLOBAL_SETUP completely. It is
-	  no meaning definition since r24894.
-	* main.c: ditto.
-	* nacl/pepper_main.c: ditto.
+	* symbol.c (op_tbl): add DOTQ for ripper.  [Feature #11537]
 
-Mon Jul  9 23:59:36 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Sat Oct 24 22:51:18 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* dln.c: Simplify and make consistent an ifdef for Mac OS X.
+	* configure.in: fixed build failure of Haiku.
+	  [fix GH-984] Patch by @kallisti5
+	* ext/socket/getaddrinfo.c: ditto.
+	* ext/socket/getnameinfo.c: ditto.
 	* ext/socket/rubysocket.h: ditto.
-	* ext/tk/stubs.c: ditto.
-	* io.c: ditto.
-	* process.c: ditto.
-	* signal.c: ditto.
-	* vm_dump.c: ditto.
-
-Mon Jul  9 17:37:35 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (win95_stat): removed unnecessary macro.
-
-Mon Jul  9 17:22:16 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/configure.bat, win32/setup.mak, win32/Makefile.sub: omitted
-	  Win9x support.  removed --enable/disable-win95 options.
-
-	* include/ruby/win32.h, file.c, win32/win32.c: ditto.
-
-	* win32/README.win32: ditto.
-
-Mon Jul  9 13:28:34 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (DLDFLAGS): use TARGET_ENTRY to specify an entry point
-	  instead of TARGET which may contain non-identifier characters.
-
-	* lib/mkmf.rb (create_makefile): add TARGET_NAME which is the first
-	  part consists of only word characters.  [ruby-core:46248][Bug #6709]
 
-Sun Jul  8 07:36:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Oct 24 21:16:53 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* parse.y (shadowing_lvar_gen, warn_unused_var): no warnings for
-	  variables starting with _.  [ruby-core:46160][Feature #6693]
+	* test/fileutils/test_fileutils.rb (test_uptodate): relax error
+	  message format.  [Feature #9025], [ruby-core:71178] [Bug #11617]
 
-Sat Jul  7 23:07:30 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+Sat Oct 24 21:06:43 2015  Shota Fukumori (sora_h)  <her@sorah.jp>
 
-	* test/csv/test_features.rb: add require for Tempfile.
-	* test/csv/test_serialization.rb: ditto.
+	* lib/mkmf.rb: Revert r45640 because it may lead to link
+	  with different libruby. [Bug #9760]
 
-Fri Jul  6 06:49:50 2012  Eric Hodel  <drbrain@segment7.net>
+Sat Oct 24 15:42:20 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* array.c (rb_ary_aref):  Added a description of the behavior of
-	  index positioning.  [Bug #6680]
-	* array.c (rb_ary_aset):  ditto.  Reordered sentences for clarity.
-	* string.c (rb_str_aref_m):  Added a description of the behavior of
-	  index positioning
+	* bootstraptest/test_method.rb: relax error message format.
 
-Fri Jul  6 05:38:44 2012  Eric Hodel  <drbrain@segment7.net>
+	* test/ruby/test_arity.rb (err_mess): ditto.
+	  [Feature #9025], [ruby-core:71178] [Bug #11617]
 
-	* string.c (rb_str_bytesize):  Improve documentation.  Patch by Oscar
-	  Del Ben from github issue #138.
-	* string.c (rb_str_empty):  ditto.
-	* string.c (rb_str_times):  ditto.
-	* string.c (rb_str_dump):  ditto.
-	* string.c (rb_str_center):  ditto.
+Sat Oct 24 12:47:47 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Fri Jul  6 04:05:59 2012  Eric Hodel  <drbrain@segment7.net>
+	* vm_insnhelper.c: improved error message for "wrong number
+	  of arguments", distinguishing given and expected argument
+	  numbers clearly. [Feature #9025]
 
-	* ext/zlib/zlib.c (zstream_expand_buffer_without_gvl):  Use
-	  ruby_xrealloc() to avoid crash with CALC_EXACT_MALLOC_SIZE.
+Sat Oct 24 11:57:59 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Thu Jul  5 17:32:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_insnhelper.c: remove the typedef redeclaration of
+	  vm_call_handler.
 
-	* internal.h: move ThreadShield declarations from intern.h.
+Sat Oct 24 07:29:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Jul  5 16:00:24 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/forwardable.rb (def_instance_delegator, def_single_delegator):
+	  match backtraces against ::Forwardable in case the target class
+	  is a subclass of BasicObject and does not include Kernel.
+	  [ruby-core:71176] [Bug #11616]
 
-	* thread.c (ThreadShield): rename from Barrier.
+Sat Oct 24 04:10:13 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Jul  5 15:14:50 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* iseq.c (make_compile_option_value): include frozen_string_literal*
+	  in a made option value.
 
-	* bootstraptest/runner.rb (show_progress): refine error output. do not
-	  count non-empty error message, but just warn.
+	* vm_opts.h: forgot to add OPT_FROZEN_STRING_LITERAL_DEBUG
+	  at last commit.
 
-	* bootstraptest/runner.rb (error): show errors immediately if tty.
+Sat Oct 24 03:58:02 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Jul  5 12:28:11 2012  Akinori MUSHA  <knu@iDaemons.org>
+	* ruby.c: introduce --enable-frozen-string-literal-debug option.
+	  If this option is enabled, the modify error will be:
+	    can't modify frozen String (RuntimeError) =>
+	    can't modify frozen String, created at test.rb:3 (RuntimeError)
 
-	* test/net/http/test_httpresponses.rb: Add a test file for
-	  Net::HTTPResponses and put a test case for the previous bug.
+	* iseq.h: add compile option frozen_string_literal_debug.
 
-Thu Jul  5 06:33:52 2012  Mark Dodwell <mark@mkdynamic.co.uk>
+	* compile.c: catch up this fix.
 
-	* lib/net/http/responses.rb: Fix 4xx classes to inherit correctly
-	  from Net::HTTPClientError. [Bug #6700]
+	* error.c (rb_error_frozen): ditto.
 
-Wed Jul  4 21:55:35 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* iseq.c (set_compile_option_from_hash): ditto.
 
-	* ruby.c (proc_options): warn only if -K and -w option is specified.
-	  see also r36274 [Feature #5206]
+	* test/ruby/test_rubyoptions.rb: add a test for this fix.
 
-Wed Jul  4 21:41:44 2012  Naohisa Goto  <ngotogenome@gmail.com>
+Sat Oct 24 02:02:24 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* gc.c, atomic.h (ATOMIC_SIZE_*): moved from gc.c to atomic.h
-	  [ruby-dev:45909]
+	* vm_insnhelper.c: introduce new call handler for simple ISeqs.
 
-Wed Jul  4 19:13:15 2012  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+	  vm_call_iseq_setup_normal_0start() is simple, however it has
+	  some loops/conditions depends on ISeq::param.size and
+	  ISeq::local_size (in vm_push_frame(), inlined into this function).
 
-	* test/win32ole/test_win32ole.rb (test_s_codepage_changed):
-	  FileSystemObject only supports ANSI or UTF-16LE encoding.
-	  Patch by h.shirosaki (Hiroshi Shirosaki) [ruby-trunk - Bug #6650]
+	  There are many simple methods which has a few parameters and local
+	  variables. So that this patch introduces several special functions
+	  generated in vm_call_iseq_optimized.inc by
+	  tool/mk_call_iseq_optimized.rb.
 
-Wed Jul  4 11:52:12 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	  This script makes
+	    vm_call_iseq_setup_normal_0start_Xparams_Ylocals()
+	  where X is 0 to 3 and Y is 1 to 6 (as current setting).
+	  In this case, X * Y = 24 functions are created.
 
-	* gc.c (ATOMIC_SIZE_*): 64bit Windows support.
+	  These functions creates fast method dispatch by inlining
+	  vm_push_frame() with immediate params/locals sizes.
 
-Wed Jul  4 11:11:28 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  On my laptop, we can have the following results.
 
-	* eval.c (rb_frame_callee, rb_f_callee_name): fix to return the
-	  called id.  this longstanding bug has been caused and blocked by
-	  the structure of old rb_control_frame_t and rb_iseq_t.
+	  vm2_method*       1.083 (8.3% faster)
+	  vm2_poly_method*  0.961 (3.4% slower)
 
-	* vm_insnhelper.c (vm_push_frame): set proper method entry.
+	  It shows 8.3% faster for inner loop method dispatch (hit inline
+	  cache), but 3.4% slower when inline cache miss because we need
+	  to find a suitable call handler.
 
-Wed Jul  4 08:29:31 2012  Eric Hodel  <drbrain@segment7.net>
+	* common.mk: add a rule for vm_call_iseq_optimized.inc.
 
-	* array.c (rb_ary_aref):  Updated documentation to indicate the
-	  starting index is an index into the array or string.  Updated
-	  examples to show behavior of indexes at the end of an array or
-	  string.  Based on patch by Marcus Stollsteimer.  [Bug #6680]
-	* array.c (rb_ary_aset):  ditto.
-	* string.c (rb_str_aref):  ditto.  Also added descriptive argument
-	  names to call-seq section.
+	* tool/mk_call_iseq_optimized.rb: added.
 
-Wed Jul  4 07:05:59 2012  Eric Hodel  <drbrain@segment7.net>
+	* vm.c: include vm_call_iseq_optimized.inc.
 
-	* test/zlib/test_zlib.rb (test_inflate_partial_input):  Added test for
-	  inflating incomplete zlib streams.
+Sat Oct 24 01:58:50 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Jul  3 23:14:16 2012  Naohisa Goto  <ngotogenome@gmail.com>
+	* vm_core.h: define vm_call_handler.
 
-	* gc.c (ATOMIC_SIZE_EXCHANGE): fix function name on Solaris [Bug #6689]
-	  [ruby-dev:45904]
+Sat Oct 24 01:56:01 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Jul  3 16:07:49 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_core.h, vm_insnhelper.h: move definition of VMDEBUG
+	  from vm_insnhelper.h to vm_core.h.
 
-	* gc.c (vm_malloc_fixup, vm_xrealloc, vm_xfree, after_gc_sweep): use
-	  atomic operations to update malloc_params.
+Sat Oct 24 01:51:01 2015  Akinori MUSHA  <knu@iDaemons.org>
 
-Tue Jul  3 14:50:16 2012  Eric Hodel  <drbrain@segment7.net>
+	* NEWS: [DOC] In the new safe call syntax, arguments are evaluated
+	  only if a call is made.
 
-	* ext/zlib/zlib.c (zstream_run_func):  Don't exit run loop for buffer
-	  error.  [Feature #6615]
-	* ext/zlib/zlib.c:  Fix style to match existing functions.
+	* doc/syntax/calling_methods.rdoc: Fix a typo.
 
-Tue Jul  3 12:05:51 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Sat Oct 24 00:38:34 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* ext/dl/cfunc.c (rb_dlcfunc_call): also needed the workaround for VC8
-	  for x64.  [ruby-dev:45875] [Bug #6676]
-	  reported by aves_ramphastos (Seigo Ishigane)
+	* lib/forwardable (def_instance_delegator, def_single_delegator):
+	  rescue ::Exception instead of Exception in case Exception is
+	  defined under the target class.
+	  [ruby-core:71175] [Ruby trunk - Bug #11615]
 
-Tue Jul  3 11:56:46 2012  Eric Hodel  <drbrain@segment7.net>
+Fri Oct 23 21:10:37 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/zlib/zlib.c (zstream_detach_buffer):  Refactored tainting of
-	  output string, moving it from the callee to zstream_detach_buffer.
-	* ext/zlib/zlib.c (rb_zstream_finish):  ditto
-	* ext/zlib/zlib.c (rb_zstream_flush_next_out):  ditto
-	* ext/zlib/zlib.c (rb_deflate_deflate):  ditto
-	* ext/zlib/zlib.c (rb_deflate_flush):  ditto
-	* ext/zlib/zlib.c (rb_inflate_inflate):  ditto
+	* error.c (name_err_mesg_to_str): separate class names from the
+	  receiver description.
 
-Tue Jul  3 11:16:06 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_eval.c (make_no_method_exception, raise_method_missing): add
+	  format specifiers for class names.
 
-	* common.mk (runnable): make symbolic links to run in build directory.
+Fri Oct 23 18:10:32 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Jul  3 10:46:06 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* .gitignore: ignored environmental wrapper files.
 
-	* ruby.c (proc_options): warn if -K option is specified. [Feature #5206]
+Fri Oct 23 17:55:29 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Jul  3 06:12:13 2012  Eric Hodel  <drbrain@segment7.net>
+	* lib/irb.rb: Ignored assignment of STDOUT.sync = true
+	  when irb.rb loaded. It's affected to IDE such as Jetbrain.
+	  [fix GH-864] Patch by @os97673
 
-	* object.c (Init_Object):  Added RDoc location pointers for
-	  Kernel#methods, Kernel#protected_methods, Kernel#private_methods and
-	  Kernel#public_methods.  [Bug #6666]
+Fri Oct 23 16:35:08 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Jul  3 06:02:54 2012  Eric Hodel  <drbrain@segment7.net>
+	* lib/ipaddr.rb, test/test_ipaddr.rb: Reject invalid address contained
+	  EOL string. Patch by @kachick [fix GH-942][Bug #11513]
 
-	* ext/zlib/zlib.c (zstream_run):  Process zlib streams without GVL.
-	  [Feature #6615]
-	* NEWS:  ditto.
+Fri Oct 23 16:03:26 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Mon Jul  2 22:13:04 2012  Tanaka Akira  <akr@fsij.org>
+	* file.c: fix indent style. [fix GH-977]
+	* test/ruby/test_string.rb: indent. [fix GH-975]
+	  [ci skip] These patches are contributed from @yui-knk
 
-	* thread.c (rb_thread_aref): add explanation for why Thread#[] and
-	  Thread#[]= are fiber-local and not thread-local.
-	  reported by Julien A.  [ruby-core:41606] [ruby-trunk - Bug #5750]
+Fri Oct 23 15:46:09 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Mon Jul  2 21:25:55 2012  Tanaka Akira  <akr@fsij.org>
+	* string.c: Added method signature to include hash. It's inconsistency
+	  with `gsub` method signature.
+	  [ci skip][fix GH-1023] Patch by @danielevans
 
-	* time.c (timew_out_of_timet_range): specialization for
-	  SIZEOF_TIME_T == SIZEOF_INT64_T.
+Fri Oct 23 15:25:51 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Mon Jul  2 17:06:32 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/net/imap.rb: remove an empty comment line and -*-.
 
-	* class.c (rb_include_module): include modules after the origin.
+Fri Oct 23 15:20:02 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* class.c (include_modules_at): skip prepended modules.
+	* lib/net/ftp.rb (gettextfile, getbinaryfile): use the safe
+	  navigation operator.
 
-	* class.c (rb_prepend_module): now basic.klass in ICLASS refers the
-	  old original class/module.  [ruby-dev:45868][Bug #6662]
+Fri Oct 23 13:51:33 2015  yui-knk  <spiketeika@gmail.com>
 
-	* class.c (rb_mod_ancestors): ditto.
+	* test_call.rb (test_safe_call): Add test cases for safe
+	  navigation operator assignment.  [Fix GH-1064]
+	  Validate:
+	  * can assign an attribute which is `nil`
+	  * can "or assign" an attribute which is `nil`
 
-	* vm_method.c (search_method): search method entry from the origin
-	  iclass.
+Fri Oct 23 11:58:21 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Jul  2 05:54:58 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+	* compile.c (iseq_peephole_optimize): optimize lengthy safe
+	  navigation method chain.  [Feature #11537]
 
-	* ext/date/date_core.c: [ruby-core:46058].
+Fri Oct 23 10:58:41 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Mon Jul  2 05:35:43 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+	* lib/matrix/eigenvalue_decomposition.rb (tridiagonalize): fix
+	  indentation to avoid a warning when the command line option -w of
+	  ruby is specified.
 
-	* ext/date/date_core.c (d_lite_marshal_load): accepts old dump.
+	* lib/matrix/eigenvalue_decomposition.rb (hessenberg_to_real_schur):
+	  change the name of a block parameter to avoid a warning when the
+	  command line option -w of ruby is specified.
 
-Mon Jul  2 03:21:53 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+Fri Oct 23 10:49:36 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* README.EXT.ja: fixed args of have_struct_member() ,
-	  create_makefile() same as r35977. however, mkmf.rb include
-	  no Japanese-docs, so Appendix C was not removed. [Bug #6597]
+	* compile.c (iseq_compile_each): support safe navigation of simple
+	  attribute assignment.  [Feature #11537]
 
-Fri Jun 29 05:08:41 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* parse.y (mlhs_node, lhs, attrset_gen): ditto.  keep mid
+	  non-attrset as the sign of safe navigation.
 
-	* lib/test/unit/parallel.rb: workaround fix for rubygems.
-	  RubyGems can't find rake if the source directory is not equal to
-	  the directory which is running the test. [Bug #6604]
+Fri Oct 23 07:17:11 2015  Eric Wong  <e@80x24.org>
 
-Thu Jun 28 20:33:15 2012  Luis Lavena  <luislavena@gmail.com>
+	* test/io/wait/test_io_wait.rb (test_wait_eof): test return value
 
-	* test/win32ole/test_win32ole.rb (test_s_codepage_changed):
-	  FileSystemObject only supports ANSI or UTF-16LE encoding.
-	  Patch by bosko (Bosko Ivanisevic) [ruby-trunk - Bug #6650]
+Fri Oct 23 00:32:02 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Thu Jun 28 09:27:09 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+	* ext/openssl/ossl_ssl.c (ssl_npn_select_cb): explicitly raise error
+	  in ext/openssl instead of OpenSSL itself because LibreSSL
+	  silently truncate the selected protocol name by casting the length
+	  from int to unsigned char. [Bug #11369]
+	  Patch by Jeremy Evans <merch-redmine@jeremyevans.net>
 
-	* class.c (class_instance_method_list): consider prepended Class/Module
-	  when recur != 0. [ruby-dev:45863] [Bug #6660]
+Fri Oct 23 00:49:45 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* test/ruby/test_module.rb (test_prepend_instance_methods_false): add
-	  a test for it.
+	* lib/un.rb (help): change the name of a block parameter to avoid
+	  a warning when the command line option -w of ruby is specified.
 
+Fri Oct 23 00:22:20 2015  Josef Simanek  <josef.simanek@gmail.com>
 
-Thu Jun 28 06:12:42 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* string.c (rb_str_tr): [DOC] Escape backslash in String#tr
+	  documentation.  [Fix GH-1063]
 
-	* class.c (rb_mod_ancestors): fix ancestors order.
-	  [ruby-core:45919][Bug #6658] [ruby-dev:45861][Bug #6659]
+Fri Oct 23 00:19:04 2015  yui-knk  <spiketeika@gmail.com>
 
-Wed Jun 27 21:28:59 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	* array.c (rb_ary_collect): [DOC] Fix space of code example of
+	  Array#map.  [Fix GH-1062]
 
-	* lib/racc/parser.rb: NotImplementError is not exist.
+Thu Oct 22 18:52:53 2015  Akinori MUSHA  <knu@iDaemons.org>
 
-	* lib/irb/output-method.rb (IRB::OutputMethod#print): ditto.
+	* vm_eval.c (rb_f_loop): When a loop is stopped by a StopIteration
+	  exception, return what the enumerator has returned instead of
+	  nil. [ruby-core:71133] [Feature #11498]
 
-Wed Jun 27 21:31:13 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Oct 22 18:25:10 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* class.c (rb_prepend_module): ancestors of prepending module also
-	  should be included.  [ruby-core:45914][Bug #6654]
+	* lib/net/imap.rb (idle): add a new argument timeout for keep-alive.
+	  [ruby-core:63693] [Bug #10031]
 
-Wed Jun 27 21:01:32 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Oct 22 15:30:08 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* class.c (class_instance_method_list): m_tbl in prepended
-	  class/module is NULL.  [ruby-core:45915][Bug #6655]
+	* compile.c (iseq_peephole_optimize): peephole optimization for
+	  branchnil jumps.
 
-Wed Jun 27 16:48:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* class.c (rb_prepend_module): prepend module into another module.
-
-	* eval.c (rb_mod_prepend): new method Module#prepend.  [Feature #1102]
-
-Wed Jun 27 09:15:46 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (is_popen_fork): check if fork and raise NotImplementedError if
-	  unavailable.
-
-	* io.c (rb_io_s_popen): allow environment variables hash and exec
-	  options as flat parameters, not in an array arguments.
-	  [Feature#6651] [EXPERIMENTAL]
-
-	* process.c (rb_execarg_extract_options): extract exec options, but no
-	  exceptions on non-exec options and returns them as a Hash.
-
-	* process.c (rb_execarg_setenv): set environment variables.
-
-Tue Jun 26 16:57:14 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* thread_pthread.c (register_cached_thread_and_wait):
-	  return immediately if malloc() failed.
-	  [ruby-core:43960] [ruby-trunk - Bug #6235]
-
-	* thread_pthread.c (USE_THREAD_CACHE): check already defined or not.
-
-Tue Jun 26 10:01:56 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (rb_io_s_popen): revert r36213 "popen: shell commands with
-	  envvar" because it disabled to let single command bypass shell.
-
-Mon Jun 25 17:49:28 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* class.c (rb_mix_module): revert Module#mix.
-
-Mon Jun 25 16:57:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* proc.c (rb_mod_define_method): allow method transplanting from a
-	  module to either class or module.  [ruby-core:34267][Feature #4254]
+	* compile.c (iseq_compile_each): generate save navigation operator
+	  code.
 
-Mon Jun 25 11:34:45 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* insns.def (branchnil): new opcode to pop the tos and branch if
+	  it is nil.
 
-	* internal.h: use rb_pid_t instead of pid_t because of there is no
-	  definition of pid_t here on Windows.
+	* parse.y (NEW_QCALL, call_op, parser_yylex): parse token '.?'.
+	  [Feature #11537]
 
-Mon Jun 25 00:25:01 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Thu Oct 22 13:16:19 2015  Guilherme Reis Campos  <guilhermekbsa@gmail.com>
 
-	* configure.in (for stack end address): remove human68k specific
-	  check. It is no longer supported.
+	* dir.c (ruby_brace_expand): glob brace expansion edge case fix.
+	  When there are closing braces '}' before a open brace '{' it
+	  must be ignored and considered as literal.
+	  [ruby-core:71138] [Bug #11609]
 
-Sun Jun 24 23:02:17 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Oct 22 13:13:49 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* io.c (pipe_open): merge win32 code using spawnv().
+	* io.c (argf_next_argv): check ARGV element type, and try
+	  conversion if necessary.  [ruby-core:71140] [Bug #11610]
 
-Sun Jun 24 22:53:42 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Oct 22 11:11:16 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* process.c (check_exec_fds): separate check_exec_fds_1() since
-	  nonstatic initializer of an aggregate type is not allowed by C89.
+	* test/net/ftp/test_ftp.rb: add tests for getbinaryfile and
+	  gettextfile.
 
-Sun Jun 24 07:47:17 2012  Tanaka Akira  <akr@fsij.org>
+Wed Oct 21 18:34:06 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* internal.h (rb_execarg): options field removed.
+	* parse.y (parser_magic_comment): allow a sole magic comment without
+	  indicators, neither other non-space comments.  [Feature #8976]
 
-	* process.c: follow the rb_execarg change.
+Tue Oct 20 12:17:56 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
-Sat Jun 23 23:48:21 2012  Tanaka Akira  <akr@fsij.org>
+	* lib/prime.rb: Add basic argument checking to Prime.prime?
+	  [Bug #11606]
 
-	* process.c (proc_spawn_cmd): unused variable removed to suppress a
-	  warning.
-	  (save_env): ditto.
+Tue Oct 20 12:17:50 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
-	  [ruby-core:45797] reported by Luis Lavena.
+	* lib/prime.rb: Optimize Integer#prime?
+	  Patch by Nick Slocum [Bug #10354]
 
-Sat Jun 23 23:19:31 2012  Tanaka Akira  <akr@fsij.org>
+Tue Oct 20 08:12:47 2015  Rei Odaira  <Rei.Odaira@gmail.com>
 
-	* internal.h (rb_execarg): add new_pgroup_given and new_pgroup_flag
-	  fields.
+	* configure.in: pthread_getattr_np is broken on AIX.
+	  More specifically, the stack address and size returned are
+	  not correct.
 
-	* process.c (EXEC_OPTION_NEW_PGROUP): removed.
-	  (proc_spawn_cmd): take a struct rb_execarg argument.
-	  use the new fields.
-	  (rb_execarg_addopt): use the new fields.
-	  (rb_spawn_process): follow the proc_spawn_cmd change.
+Tue Oct 20 05:54:46 2015  Eric Wong  <e@80x24.org>
 
-	  [ruby-core:45794] [ruby-trunk - Bug #6633] reported by Luis Lavena.
+	* ext/fiddle/closure.c (callback): static function
 
-Sat Jun 23 20:26:36 2012  Tanaka Akira  <akr@fsij.org>
+Mon Oct 19 10:33:46 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* internal.h (rb_execarg): add fd_dup2, fd_close, fd_open,
-	  fd_dup2_child fields.
+	* ext/socket/init.c (rsock_raise_socket_error): get rid of a glibc
+	  bug.  [ruby-core:71100] [Bug #11600]
 
-	* process.c (EXEC_OPTION_DUP2): removed.
-	  (EXEC_OPTION_CLOSE): removed.
-	  (EXEC_OPTION_OPEN): removed.
-	  (EXEC_OPTION_DUP2_CHILD): removed.
-	  (mark_exec_arg): mark the new fields.
-	  (check_exec_redirect1): change condition for default option.
-	  (check_exec_redirect): take a struct rb_execarg argument.
-	  use the new fields.
-	  (rb_execarg_addopt): follow the check_exec_redirect change.
-	  (check_exec_fds): use the new fields.
-	  (save_redirect_fd): ditto.
+Mon Oct 19 01:26:26 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Sat Jun 23 19:01:18 2012  Tanaka Akira  <akr@fsij.org>
+	* file.c (rb_file_identical_p): not necessary to compare the paths after
+	  comparing the file indexes on Windows.  designate by kosaki.
 
-	* process.c (rb_execarg_fixup): fix envopts condition.
+Sun Oct 18 21:17:27 2015  Tanaka Akira  <akr@fsij.org>
 
-Sat Jun 23 18:44:13 2012  Tanaka Akira  <akr@fsij.org>
+	* lib/open-uri.rb: Specify frozen_string_literal: true.
 
-	* process.c (check_exec_redirect1): extracted from
-	  check_exec_redirect.
+Sun Oct 18 14:37:56 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-Sat Jun 23 17:22:02 2012  Tanaka Akira  <akr@fsij.org>
+	* random.c (fill_random_bytes_urandom): add a comment why using
+	  O_NONBLOCK and O_NOCTTY.
 
-	* process.c (save_env): don't use EXEC_OPTION_UNSETENV_OTHERS.
-	  (rb_execarg_run_options): ditto.
+Sun Oct 18 13:24:17 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-Sat Jun 23 17:04:08 2012  Tanaka Akira  <akr@fsij.org>
+	* random.c (fill_random_bytes_syscall): use ATOMIC_SET() for
+	  updating try_syscall.
 
-	* internal.h (rb_execarg): add env_modification field.
+Sun Oct 18 13:03:52 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* process.c (EXEC_OPTION_ENV): removed.
-	  (mark_exec_arg): mark env_modification field.
-	  (rb_exec_fillarg): update the new field, instead of options array.
-	  (rb_execarg_fixup): use the new field.
-	  (save_env): ditto.
-	  (rb_execarg_run_options): ditto.
+	* include/ruby/backward/util.h: Good-by Borland-C.
 
-Sat Jun 23 16:27:01 2012  Tanaka Akira  <akr@fsij.org>
+Sun Oct 18 13:03:09 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* internal.h (rb_execarg): add rlimit_limits field.
+	* common.mk: add a comment how to use "make test-all"
 
-	* process.c (EXEC_OPTION_RLIMIT): removed.
-	  (mark_exec_arg): mark rlimit_limits field.
-	  (rb_execarg_addopt): update the new fields, instead of options array.
-	  (run_exec_rlimit): use the new field.
-	  (rb_execarg_run_options): clear sarg using MEMZERO.  use the new
-	  field.
+Sun Oct 18 12:59:22 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-Sat Jun 23 14:29:25 2012  Tanaka Akira  <akr@fsij.org>
+	* common.mk: add comments how to use "make benchmark"
 
-	* internal.h (rb_execarg): add chdir_given and chdir_dir fields.
+Sun Oct 18 12:58:15 2015  Tanaka Akira  <akr@fsij.org>
 
-	* process.c (EXEC_OPTION_CHDIR): removed.
-	  (mark_exec_arg): mark chdir_dir field.
-	  (rb_execarg_addopt): update the new fields, instead of options array.
-	  (rb_execarg_run_options): use the new fields.
+	* lib/securerandom.rb: Specify frozen_string_literal: true.
 
-Sat Jun 23 13:20:47 2012  Tanaka Akira  <akr@fsij.org>
+Sun Oct 18 11:22:52 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* internal.h (rb_execarg): add close_others_given, close_others_do and
-	  close_others_maxhint fields.
+	* dln.c: remove defined(__WATCOMC__).
 
-	* process.c (EXEC_OPTION_CLOSE_OTHERS): removed.
-	  (rb_execarg_addopt): update the new fields, instead of options array.
-	  (check_exec_fds): take eargp as an argument.  update the
-	  close_others_maxhint field.
-	  (rb_execarg_fixup): follow the argument change of check_exec_fds.
-	  (rb_execarg_run_options): use the new fields.
+Sun Oct 18 11:16:33 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-Sat Jun 23 10:41:59 2012  Tanaka Akira  <akr@fsij.org>
+	* lib/mkmf.rb: Good-by Borland-C.
 
-	* internal.h (rb_execarg): add unsetenv_others_given and
-	  unsetenv_others_do fields.
+Sun Oct 18 11:04:36 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* process.c (EXEC_OPTION_UNSETENV_OTHERS): removed.
-	  (rb_execarg_addopt): update the new fields, instead of options array.
-	  (rb_execarg_fixup): use the new fields.
+	* numeric.c: Good-by Borland-C.
+	* include/ruby/backward/rubyio.h: ditto.
+	* include/ruby/backward/st.h: ditto.
+	* include/ruby/backward/util.h: ditto.
+	* include/ruby/backward/rubysig.h: ditto.
+	* include/ruby/backward/classext.h: ditto.
+	* dln.c: ditto.
+	* gc.c: ditto.
+	* win32/resource.rb: ditto.
+	* win32/dir.h: ditto.
+	* ext/tk/tcltklib.c: ditto.
+	* NEWS: announce that Borland-C is no longer supported.
 
-Sat Jun 23 09:35:47 2012  Tanaka Akira  <akr@fsij.org>
+Sun Oct 18 10:54:52 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* process.c: use the variable name "soptions" for sargp->options.
+	* dln.c: simplify #ifdef. _WIN32 and __CYGWIN__ are exclusive.
+	  see include/ruby/defines.h
+	* gc.c: ditto.
+	* ext/sdbm/_sdbm.c: ditto.
 
-Sat Jun 23 09:17:49 2012  Tanaka Akira  <akr@fsij.org>
+Sun Oct 18 10:42:19 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* process.c: use the name "sargp" for struct rb_execarg variables
-	  consistently for saving process attributes.
+	* ruby.c (open_load_file): add a comment.
 
-	* io.c: ditto.
+Sun Oct 18 10:12:46 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-Sat Jun 23 07:59:57 2012  Tanaka Akira  <akr@fsij.org>
+	* file.c (rb_file_identical_p): simplify ifdefs
 
-	* process.c: use the name "eargp" for struct rb_execarg variables
-	  consistently except for saving process attributes.
+Sun Oct 18 10:01:40 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
+	* ChangeLog: Good-bye OS/2.
+	* common.mk: ditto.
+	* configure.in: ditto.
+	* dln_find.c: ditto.
+	* ext/Setup.emx: ditto.
+	* ext/extmk.rb: ditto.
+	* ext/socket/extconf.rb: ditto.
+	* ext/zlib/extconf.rb: ditto.
+	* file.c: ditto.
+	* include/ruby/defines.h: ditto.
 	* io.c: ditto.
-
-	* ext/pty/pty.c: ditto.
-
-Wed Jun 20 18:27:03 2012  Yuki Yugui Sonoda  <yugui@google.com>
-
-	* common.mk: Add missing dependencies.
-
-Fri Jun 22 20:27:39 2012  Tanaka Akira  <akr@fsij.org>
-
-	* internal.h (rb_execarg): add pgroup_given and pgroup_pgid fields.
-
-	* process.c (EXEC_OPTION_PGROUP): removed.
-	  (rb_execarg_addopt): update the new fields, instead of options array.
-	  (run_exec_pgroup): take a struct rb_execarg argument.  refer the new
-	  fields.
-	  (rb_execarg_run_options): follow run_exec_pgroup change.
-
-Fri Jun 22 18:48:51 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* README.EXT, README.EXT.ja: use "sval" for the third argument
-	  name of Data_Wrap_Struct().
-	  Suggested by @satoh_fumiyasu. Thanks!!!
-
-Fri Jun 22 18:04:26 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.c, vm_eval.c: set th->base_block properly.
-	  th->base_block is information for (a) parsing, (b) compiling
-	  and (c) setting up the frame to execute the program passed by
-	  `eval' method.  For example, (1) parser need to know up-level
-	  variables to detect it is variable or method without paren.
-	  Befor (a), (b) and (c), VM set th->base_block by passed bindng
-	  (or previous frame information).  After execute (a), (b) and (c),
-	  VM should clear th->base_block.  However, if (a), (b) or (c)
-	  raises an exception, then th->base_block is not cleared.
-	  Problem is that the uncleared value th->balo_block is used for
-	  irrelevant iseq compilation.  It causes SEGV or critical error.
-	  I tried to solve this problem: to clear them before exception,
-	  but finally I found out that it is difficult to do it (Ruby
-	  program can be run in many places).
-	  Because of this background, I set th->base_block before
-	  compiling iseq and restore it after compiling.
-	  Basically, th->base_block is dirty hack (similar to global
-	  variable) and this patch is also dirty.
-
-	* bootstraptest/test_eval.rb: add a test for above.
-
-	* internal.h: remove unused decl.
-
-	* iseq.c (rb_iseq_compile_with_option): add base_block parameter.
-	  set th->base_block before compilation and restore it after
-	  compilation.
-
-	* ruby.c (require_libraries): pass 0 as base_block instead of
-	  setting th->base_block
-
-	* tool/compile_prelude.rb (prelude_eval): apply above changes.
-
-	* vm.c, vm_eval.c: ditto.
-
-	* vm_core.h: add comments.
-
-Fri Jun 22 18:19:38 2012  Tanaka Akira  <akr@fsij.org>
-
-	* process.c: pass struct rb_execarg value instead of its options
-	  field for saving process attribute changing functions.
-	  (save_redirect_fd): take a struct rb_execarg argument.
-	  (run_exec_dup2): ditto.
-	  (run_exec_close): ditto.
-	  (run_exec_open): ditto.
-	  (run_exec_dup2_child): ditto.
-	  (run_exec_pgroup): ditto.
-	  (run_exec_rlimit): ditto.
-	  (save_env): ditto.
-	  (rb_execarg_run_options): follow the above functions change.
-
-Fri Jun 22 17:55:48 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* test/ruby/test_backtrace.rb: decrease recursion depth
-	  to reduce consuming stack size.
-
-Fri Jun 22 13:36:50 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* random.c (random_init, random_load): cannot initialize frozen object
-	  again, nor with tainted/untrusted object.  [Bug #6540]
-
-Fri Jun 22 13:32:33 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (rb_check_copyable): new function, to ensure the target is
-	  not frozen and the source is not tainted nor untrusted.
-
-Fri Jun 22 05:55:20 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* eval.c (ruby_cleanup):  Fixed typo.  Patch by Trever Dawe.
-	  Fixes #131 (github).  [ruby-trunk - Bug #6619]
-
-Thu Jun 21 21:16:58 2012  Tanaka Akira  <akr@fsij.org>
-
-	* process.c (rb_execarg_addopt): take a VALUE argument instead of
-	  struct rb_execarg.
-	  (rb_exec_arg_addopt): follow the rb_execarg_addopt change.
-	  (check_exec_options_i): ditto.
-
-	* io.c (pipe_open): follow the rb_execarg_addopt change.
-
-	* internal.h (rb_execarg_addopt): follow the definition change.
-
-Thu Jun 21 20:34:19 2012  Tanaka Akira  <akr@fsij.org>
-
-	* process.c (rb_exec_fillarg): take a VALUE argument instead of
-	  struct rb_execarg.
-	  (rb_check_exec_options): ditto.
-	  (check_exec_options_i): ditto.
-
-Thu Jun 21 19:48:05 2012  Tanaka Akira  <akr@fsij.org>
-
-	* process.c (rb_exec_async_signal_safe): use rb_execarg_run_options
-	  instead of rb_run_exec_options_err.
-	  (rb_spawn_process): ditto.
-
-Thu Jun 21 19:02:43 2012  Tanaka Akira  <akr@fsij.org>
-
-	* process.c (rb_exec_fillarg): take a VALUE argument instead of
-	  struct rb_execarg.
-	  (rb_execarg_init): follow the rb_exec_fillarg change.
-
-Thu Jun 21 18:36:43 2012  Tanaka Akira  <akr@fsij.org>
-
-	* process.c (rb_execarg_init): take a VALUE argument instead of
-	  struct rb_execarg.
-	  (rb_execarg_new): follow the rb_execarg_init change.
-	  (rb_exec_arg_init): ditto.
-
-	* internal.h (rb_execarg_init): follow the definition change.
-
-Thu Jun 21 17:20:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (new_args_tail_gen): fix GC problem of keyword rest
-	  argument.  the wrapped struct should be bound to the wrapping node
-	  before assignment of child nodes, to get rid of the case the
-	  children are referred by only the struct pointer which is not a
-	  subject of GC.  [ruby-core:45744]
-
-Thu Jun 21 07:06:52 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* error.c (err_append): rename err_append() to compile_err_append()
-	  and move definition body.  err_append() is used only by compiling.
-
-Thu Jun 21 06:21:54 2012  Tanaka Akira  <akr@fsij.org>
-
-	* process.c (rb_execarg_fixup): take a VALUE argument instead of
-	  struct rb_execarg.
-
-	* internal.h (rb_execarg_fixup): follow the definition change.
-
-	* io.c (pipe_open): follow rb_execarg_fixup change.
-
-	* ext/pty/pty.c (establishShell): ditto.
-
-Wed Jun 20 21:25:37 2012  Tanaka Akira  <akr@fsij.org>
-
-	* internal.h (struct rb_execarg): add umask_given and umask_mask
-	  fields.
-
-	* process.c (STATIC_ASSERT): removed.
-	  (rb_execarg_addopt): follow the rb_execarg change.
-	  (rb_execarg_run_options): ditto.
-
-Wed Jun 20 20:38:23 2012  Tanaka Akira  <akr@fsij.org>
-
-	* internal.h (struct rb_execarg) moved and renamed from
-	  struct rb_exec_arg in intern.h.
-
-	* include/ruby/intern.h (struct rb_exec_arg): refer Data object which
-	  contains struct rb_execarg.
-
-	* process.c: use struct rb_execarg instead of struct rb_exec_arg
-	  except functions declared in intern.h.
-	  (rb_exec_arg_addopt): extract a pointer to struct rb_execarg from
-	  struct rb_exec_arg.
-	  (rb_exec_arg_init): ditto.
-	  (rb_exec_arg_fixup): ditto.
-	  (rb_run_exec_options_err): ditto.
-	  (rb_run_exec_options): ditto.
-	  (rb_exec_err): ditto.
-	  (rb_exec): ditto.
-
-	* io.c: use struct rb_execarg instead of struct rb_exec_arg.
-
-	* ext/pty/pty.c: ditto.
-
-Wed Jun 20 19:13:25 2012  Tanaka Akira  <akr@fsij.org>
-
-	* internal.h (rb_execarg_new): declared.
-	  (rb_execarg_get): ditto.
-
-	* process.c (mark_exec_arg): new function.
-	  (free_exec_arg): ditto.
-	  (memsize_exec_arg): ditto.
-	  (exec_arg_data_type): defined.
-	  (rb_execarg_new): new function.
-	  (rb_execarg_get): ditto.
-	  (rb_f_exec): use rb_execarg_new.
-	  (rb_spawn_internal): ditto.
-	  (rb_f_spawn): ditto.
-
-	* io.c (pipe_open_v): use rb_execarg_new.
-	  (pipe_open_s): ditto.
-
-	* ext/pty/pty.c (establishShell): use rb_execarg_new.
-
-Wed Jun 20 16:36:14 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* missing/setproctitle.c (environ): use (*_NSGetEnviron()) instead of
-	  environ on Darwin for namespace cleanness, same as [ruby-core:00537].
-	  [ruby-core:45615] [Bug #6576]
-
-Wed Jun 20 11:33:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* process.c (rb_execarg_addopt): always make Fixnum, and ignore higher
-	  bits in too large umask value.
-
-Wed Jun 20 11:24:35 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/test/unit.rb (Test::Unit::Runner#_run_parallel): deal with
-	  sudden-death of workers.
-
-Mon Jun 18 20:34:20 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* time.c (init_leap_second_info): fix non-ANSI function declaration.
-
-Mon Jun 18 20:29:04 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* ruby.c (rb_f_sub): use ansi style declaration.
-	* ruby.c (rb_f_gsub): ditto.
-	* ruby.c (rb_f_chomp): ditto.
-
-Mon Jun 18 20:26:23 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* random.c (rb_random_int32): get rid of "warning: constant 0x100000000
-	  is so big it is long" warning.
-
-Mon Jun 18 20:07:23 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* dir.c (dir_initialize): get rid of "unused return: argc = rb_scan_args()"
-	  warning.
-
-Mon Jun 18 19:31:20 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* include/ruby/missing.h: include math.h before checking INFINITY
-	  and NAN. Otherwise, strange macro redefinition will occur.
-
-Mon Jun 18 19:12:37 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* array.c (ary_reverse): use ansi style declaration.
-
-Tue Jun 19 18:43:50 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/backward/rubysig.h: fix visibility.  [Bug #6607]
-
-Tue Jun 19 17:51:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* process.c (rb_execarg_run_options): do not call any methods in the
-	  async-signal-safe function.  mask has been checked with NUM2MODET()
-	  already and converted with LONG2NUM().
-
-Tue Jun 19 11:59:56 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/readline/readline.c (Init_readline): don't set 0 to
-	  rl_catch_signals and rl_catch_sigwinch. [Bug #5423]
-
-Tue Jun 19 11:52:59 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/readline/readline.c (readline_s_get_special_prefixes): suppress
-	  warning: uninitialized instance variable.
-
-Tue Jun 19 11:43:16 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/readline/readline.c (readline_getc): fix editline compatibility
-	  broken by r36123. [Bug #6601]
-
-Mon Jun 18 17:10:08 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_subpos): split from rb_str_substr.  returns
-	  adjusted position for substring.
-
-Mon Jun 18 10:42:57 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/readline/readline.c (readline_getc): deal with ESC just followed
-	  by ASCII as meta prefix in incremental search mode.  based on the
-	  patch from rctay (Tay Ray Chuan) at [ruby-core:45682].  [Bug #6601]
-
-Sun Jun 17 22:23:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (rb_file_directory_p): move documentation for Dir.exist? from
-	  file.c so that the proper description will be shown instead of the
-	  documentation of File.directory?.  [ruby-core:45685]
-
-Sun Jun 17 16:21:01 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread_win32.h (rb_thread_lock_t): make a union for USE_WIN32_MUTEX.
-	  this internal is used only in thread_win32.c, but has to be complete
-	  to define rb_thread_t.
-
-	* thread_win32.c (native_mutex_lock, native_mutex_destroy): fix for
-	  USE_WIN32_MUTEX.
-
-	* thread_win32.c (native_cond_timedwait_ms): rename reserved pattern
-	  name.  user defined symbols should not start with __.
-
-Sat Jun 16 19:24:01 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_core.c: define date_sg_t.
-
-Sat Jun 16 18:46:57 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_tmx.h: offset in struct tmx_funcs is now int.
-	* ext/date/date_strftime.c: ditto.
-	* ext/date/date_core.c: ditto.
-
-Sat Jun 16 18:31:46 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (ruby_setup): set running state in the normal case before
-	  popping a tag.
-
-Sat Jun 16 07:46:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/test/unit.rb (Test::Unit::Runner#_run_parallel): format workers
-	  results in the parent.
-
-Sat Jun 16 07:12:56 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* tool/runruby.rb (File.realpath): return real path of expanded path.
-	  [Bug #6598]
-
-Sat Jun 16 07:12:28 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bootstraptest/runner.rb (main): ignore -j option for compatibility
-	  with test/unit.
-
-Sat Jun 16 07:11:52 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/test/unit.rb (Test::Unit::Runner#puke): modify only result and
-	  drop useless reports, not override entirely.
-
-	* lib/test/unit/parallel.rb (Test::Unit::Worker#_run_suite): report
-	  unformatted results.  formatting messages is not a workers task.
-
-	* lib/test/unit/parallel.rb (Test::Unit::Worker#puke): store raw
-	  results.
-
-Sat Jun 16 01:27:14 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych.rb: bumping psych to 1.3.3
-	* ext/psych/psych.gemspec: ditto
-
-Fri Jun 15 20:54:28 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* vm_backtrace.c (backtrace_collect): rename from backtreace_collect.
-
-Fri Jun 15 19:22:13 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: remove VM_FRAME_MAGIC_FINISH (finish frame type).
-	  Before this commit:
-	    `finish frame' was place holder which indicates that VM loop
-	    needs to return function.
-	    If a C method calls a Ruby methods (a method written by Ruby),
-	    then VM loop will be (re-)invoked.  When the Ruby method returns,
-	    then also VM loop should be escaped.  `finish frame' has only
-	    one instruction `finish', which returns VM loop function.
-	    VM loop function executes `finish' instruction, then VM loop
-	    function returns itself.
-	    With such mechanism, `leave' instruction (which returns one
-	    frame from current scope) doesn't need to check that this `leave'
-	    should also return from VM loop function.
-	    Strictly, one branch can be removed from `leave' instruction.
-	  Consideration:
-	    However, pushing the `finish frame' needs costs because
-	    it needs several memory accesses.  The number of pushing
-	    `finish frame' is greater than I had assumed.  Of course,
-	    pushing `finish frame' consumes additional control frame.
-	    Moreover, recent processors has good branch prediction,
-	    with which we can ignore such trivial checking.
-	  After this commit:
-	    Finally, I decide to remove `finish frame' and `finish'
-	    instruction.  Some parts of VM depend on `finish frame',
-	    so the new frame flag VM_FRAME_FLAG_FINISH is introduced.
-	    If this frame should escape from VM function loop, then
-	    the result of VM_FRAME_TYPE_FINISH_P(cfp) is true.
-	    `leave' instruction checks this flag every time.
-	    I measured performance on it.  However on my environments,
-	    it improves some benchmarks and slows some benchmarks down.
-	    Maybe it is because of C compiler optimization parameters.
-	    I'll re-visit here if this cause problems.
-
-	* insns.def (leave, finish): remove finish instruction.
-
-	* vm.c, vm_eval.c, vm_exec.c, vm_backtrace.c, vm_dump.c:
-	  apply above changes.
-
-Fri Jun 15 19:11:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/test/unit.rb (Test::Unit::Runner#puke): always add skipped
-	  results to the report for parallel test.  [Bug #6595]
-
-Fri Jun 15 09:01:35 2012  Yuki Yugui Sonoda  <yugui@google.com>
-
-	* nacl/pepper_main.c: Removed an unnecessary and erroneous inclusion.
-
-Thu Jun 14 22:59:56 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (RUBY_CPPOUTFILE): check if output is really sent to
-	  specified file to tell if -o option works.  [ruby-dev:45742]
-	  [Bug#6591]
-
-	* configure.in (RUBY_CPPOUTFILE): check if output file is actually
-	  created.  [ruby-dev:45742] [Bug#6591]
-
-Thu Jun 14 22:10:50 2012  Tanaka Akira  <akr@fsij.org>
-
-	* process.c (proc_exec_sh): don't strip leading spaces of the script.
-
-Thu Jun 14 15:54:02 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* file.c (rb_file_s_basename, rb_file_s_dirname): documentation fix.
-	  File.basename and File.dirname support File::ALT_SEPARATOR.
-
-Thu Jun 14 11:10:10 2012  Yuki Yugui Sonoda  <yugui@google.com>
-
-	* nacl/pepper_main.c: Applies the new embedding API to pepper_ruby.
-
-Thu Jun 14 10:44:41 2012  Yuki Yugui Sonoda  <yugui@google.com>
-
-	* include/ruby/ruby.h: Grouped APIs for embedding CRuby interpreter.
-	  (ruby_setup, ruby_compile_main_from_file,
-	  ruby_compile_main_from_string, ruby_eval_main,
-	  ruby_set_script_name): new APIs to embed CRuby.
-	  (ruby_opaque_t) Opaque pointer to an internal data, to NODE or iseq
-	  in particular.
-
-	* eval.c (ruby_setup): Similar to ruby_init but returns an error code
-	  instead of exit(3) on error.
-	  (ruby_eval_main): Similar to ruby_exec_node but returns the
-	  evaluation result.
-	  (ruby_eval_main_internal): renamed from ruby_exec_internal.
-
-	* ruby.c (toplevel_context): new helper function.
-	  (PREPARE_EVAL_MAIN): moved.
-	  (process_options): refactored with new functions.
-	  (parse_and_compile_main) new helper function.
-	  (ruby_compile_main_from_file, ruby_compile_main_from_string) new API
-	  (ruby_set_script_name): new API.
-
-
-Thu Jun 14 10:39:48 2012  Yuki Yugui Sonoda  <yugui@google.com>
-
-	* eval.c: Add doxygen comments.
-
+	* lib/mkmf.rb: ditto.
+	* missing/os2.c: ditto.
+	* process.c: ditto.
 	* ruby.c: ditto.
+	* NEWS: announce OS/2 is no longer supported.
 
-	* thread_pthread.c: ditto
-
-	* version.c: ditto.
-
-	* vm_core.h: ditto.
-
-Thu Jun 14 10:16:07 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in: revert r36071 and add NetBSD to blacklist of -ansi.
-
-Thu Jun 14 07:59:12 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* thread_pthread.c (get_stack): Linux is the only OS which includes
-	  the size of guard page into the stack size.
-
-Thu Jun 14 06:21:00 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/drb/drb.rb:  Replace broken links to the English DRb book.
-	  Patch by Zachary Scott.  [ruby-trunk - Bug #6544]
-
-Thu Jun 14 06:17:47 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/observer.rb:  Update broken link to the Programming Ruby book.
-	  Patch by Zachary Scott.  [ruby-trunk - Bug #6536]
-	* lib/drb/drb.rb:  ditto.
-
-Thu Jun 14 05:23:05 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* regparse.c (PFETCH_READY): suppress Wunused-but-set-variable.
-
-	* regparse.c (is_onechar_cclass): restructured to clarify that c is
-	  used iff found == 1.
-
-Thu Jun 14 02:54:17 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in: use -fbuiltin with -ansi -std=iso9899:199409.
-	  This prevents errors introduced by disabling builtin functions,
-	  which is the sub-effect of -ansi/-std.
-	  Now NetBSD can use -ansi -std=iso9899:199409.
-	  Maybe mingw, cygwin and darwin can also.
-
-Thu Jun 14 02:53:30 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* Makefile.in: don't remove macros. now name2ctype uses macros.
-
-	* tool/enc-unicode.rb: add comment why it uses Hash#index.
-
-	* enc/unicode/{name2ctype.kwd,name2ctype.src,name2ctype.h.blt}:
-	  update to follow the current name2ctype.h.
-	  FYI current Unicode version is 6.1.
-
-Thu Jun 14 00:16:59 2012  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/net/http/responses.rb, lib/webrick/httpstatus.rb: Add HTTP
-	  response codes added in RFCs 2817 and 4918.  [ruby-core:45547]
-	  [Feature #6569]
-
-	* lib/net/http/responses.rb: Rename Net::HTTPMultipleChoice to
-	  Net::HTTPMultipleChoices, leaving the former as alias to the
-	  latter for backward compatibility.  [ruby-core:45547]
-	  [Feature #6569]
-
-	* lib/net/http/responses.rb: Add comments about unused,
-	  still-in-draft and private extension response codes.
-	  [ruby-core:45547] [Feature #6569]
-
-Wed Jun 13 22:44:32 2012  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* test/dl/test_func.rb (test_qsort1, test_qsort2): use TYPE_SIZE_T
-	  for size_t variables. [ruby-dev:45733] [Bug #6584]
-
-Wed Jun 13 22:18:01 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in: remove -ansi and -std options for lgamma_r() and
-	  finite().
-
-Wed Jun 13 21:46:34 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in: cygwin does not provide some declarations in strict
-	  ANSI mode.
-
-Wed Jun 13 20:19:59 2012  Tanaka Akira  <akr@fsij.org>
-
-	* process.c (rb_fork_internal): move a variable declaration.
-
-Wed Jun 13 17:54:38 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* regparse.c (PFETCH_READY):  this  line was to  suppress warning,
-	  but  did emit  warnings if  -Wuninitialized was  set.  Assigning
-	  NULL instead if pfetch_prev should suffice the situation.
-
-Wed Jun 13 17:51:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in: cygwin needs C99 for some stuff, e.g.,
-	  pthread_attr_setstacksize, sched_yield.
-
-Wed Jun 13 17:50:43 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* Makefile.in (.c.i): add warnflags to make the result consistent with
-	  compilation.
-
-Wed Jun 13 15:12:07 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* configure.in: On Windows  platforms, system provided headers are
-	  VC++ optimized.  That is, C++ habits are often contaminated into
-	  various  headers.  Most  frequent  situation is  the  use of  //
-	  comments.  We bypass ANSI  C mode for them.  Otherwise extension
-	  libs cannot include those headers.
-
-Wed Jun 13 13:39:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/win32.h: get rid of C99 style one line comments.
-
-Wed Jun 13 13:39:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* encoding.c (enc_alias_internal): use strdup defined as macro.
-
-Wed Jun 13 10:20:27 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* process.c (rb_exec_fillarg): get rid of SIZE_T_MAX which may need
-	  more headers.
-
-	* process.c (rb_exec_fillarg): fix array element size.  "continue" and
-	  "readonly" exceeded the size.
-
-	* process.c (rb_exec_fillarg): use shell if the first word is reserved
-	  or special built-in name.
-	 http://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html
-
-	* process.c (rb_exec_fillarg): treat '=' only in the first word.  if
-	  the first word does not contain '=', it is the command name and
-	  environment assignments cannot be anymore.
-
-Tue Jun 12 23:45:36 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/mkmf.rb: add dummy clean-static target to prevent errors for the
-	  case real clean-static target doesn't exist.
+Sun Oct 18 08:50:15 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-Tue Jun 12 22:49:42 2012  Naohisa Goto  <ngotogenome@gmail.com>
+	* include/ruby/defines.h (DOSISH): add comments.
 
-	* process.c (rb_exec_arg_fixup): fix compile error
+Sun Oct 18 08:26:51 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-Tue Jun 12 21:40:13 2012  Tanaka Akira  <akr@fsij.org>
+	* io.c (fptr_finalize): don't release gvl if fptr is not writable.
+	  writable fd may block on close(2) when it's on NFS. But readonly
+	  fd doesn't. [Bug #11559]
+	  result: make benchmark OPTS="-p bm_require_t -e ruby-trunk -e ruby-2.2.2"
+	    build-ruby:             0.171
+	    ruby 2.3.0dev(r52151):  0.659
+	    ruby 2.2.0p95 (r50295): 0.834
 
-	* process.c (rb_exec_fillarg): treat '=' character as a meta
-	  character to detect assignments preceding command name.
+Sun Oct 18 09:32:58 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-Tue Jun 12 20:29:19 2012  Tanaka Akira  <akr@fsij.org>
+	* file.c (ruby_is_fd_loadable): this should be fail if st_mode is
+	  not regular file nor FIFO.
 
-	* include/ruby/intern.h (rb_exec_arg_init): deprecated.
-	  (rb_exec_arg_addopt): ditto.
-	  (rb_exec_arg_fixup): ditto.
-	  (rb_run_exec_options): ditto.
-	  (rb_run_exec_options_err): ditto.
+Sun Oct 18 09:20:17 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* internal.h (rb_execarg_init): declared.
-	  (rb_execarg_addopt): ditto.
-	  (rb_execarg_fixup): ditto.
-	  (rb_execarg_run_options): ditto.
+	* ruby.c (open_load_file): use rb_thread_wait_fd() instead of reopen.
 
-	* process.c: call rb_execarg_addopt, rb_execarg_fixup,
-	  rb_execarg_run_options, rb_execarg_init.
-	  (rb_execarg_addopt): renamed from rb_exec_arg_addopt.
-	  (rb_exec_arg_addopt): stub to call rb_execarg_addopt.
-	  (rb_execarg_init): renamed from rb_exec_arg_init.
-	  (rb_exec_arg_init): stub to call rb_execarg_init.
-	  (rb_execarg_fixup): renamed from rb_exec_arg_fixup.
-	  (rb_exec_arg_fixup): stub to call rb_execarg_fixup.
-	  (rb_execarg_run_options): renamed from rb_run_exec_options_err.
-	  (rb_run_exec_options_err): stub to call rb_execarg_run_options.
-	  (rb_run_exec_options): call rb_execarg_run_options.
+Sun Oct 18 05:11:22 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* io.c: call rb_execarg_addopt, rb_execarg_fixup,
-	  rb_execarg_run_options, rb_execarg_init.
+	* ruby.c (open_load_file): reset O_NONBLOCK after open.
+	  Even if S_ISREG() is true, the file may be file on FUSE filesystem
+	  or something. We can't assume O_NONBLOCK is safe.
+	  Moreover, we should wait if the path is point to FIFO. That's
+	  FIFO semantics. GVL should be transparent from ruby script.
+	  Thus, just reopen without O_NONBLOCK for filling the requirements.
+	  [Bug #11060][Bug #11559]
 
-	* ext/pty/pty.c (establishShell): call rb_execarg_init and
-	  rb_execarg_fixup.
+	* ruby.c (loadopen_func): new for the above.
 
-Tue Jun 12 18:39:59 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+	* file.c (ruby_is_fd_loadable): new. for checks loadable file type
+	  of not.
+	* file.c (rb_file_load_ok): use ruby_is_fd_loadble()
+	* internal.h: add ruby_is_fd_loadble()
 
-	* configure.in: enable strict ANSI mode by default in case of GCC,
-	  requested by _ko1.
+	* common.mk: now, ruby.o depend on thread.h.
 
-Tue Jun 12 06:40:23 2012  Tanaka Akira  <akr@fsij.org>
-
-	* process.c (rb_exec_fillarg): detect '#' as a meta character.
+	* test/ruby/test_require.rb
+	(TestRequire#test_loading_fifo_threading_success): new test.
+	  This test successful case that loading from FIFO.
 
-Mon Jun 11 22:15:44 2012  Tanaka Akira  <akr@fsij.org>
+	* test/ruby/test_require.rb
+	(TestRequire#test_loading_fifo_threading_raise): rename from
+	  test_loading_fifo_threading. You shouldn't rescue an exception
+	  if you test raise or not.
+	  Moreover, this case should be caught IOError because load(FIFO)
+	  should be blocked until given any input.
 
-	* include/ruby/intern.h (rb_proc_exec_n): deprecated.
-	  (rb_exec): ditto.
-	  (rb_exec_err): ditto.
-	  (rb_fork): ditto.
-	  (rb_fork_err): ditto.
+Sat Oct 17 13:55:32 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Jun 11 18:49:52 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* file.c (rb_file_expand_path_internal): concatenate converted
+	  string to the result instead of making converted string and
+	  append it.
 
-	* configure.in: on checking libexecinfo, don't specify /use/local.
-	  On FreeBSD people must specify --with-opt-dir or --with-execinfo-dir.
+	* string.c (rb_str_cat_conv_enc_opts): from rb_str_conv_enc_opts,
+	  separate function to concatenate with transcoding.
 
-Mon Jun 11 12:14:37 2012  Koichi Sasada  <ko1@atdot.net>
+Sat Oct 17 13:19:10 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_core.h: remove lfp (local frame pointer) and rename
-	  dfp (dynamic frame pointer) to ep (environment pointer).
-	  This change make VM `normal' (similar to other interpreters).
-	  Before this commit:
-	    Each frame has two env pointers lfp and dfp.  lfp points
-	    local environment which is method/class/toplevel frame.
-	    lfp[0] is block pointer.
-	    dfp is block local frame. dfp[0] points previous (parent)
-	    environment pointer.
-	    lfp == dfp when frame is method/class/toplevel.
-	    You can get lfp from dfp by traversing previous environment
-	    pointers.
-	  After this commit:
-	    Each frame has only `ep' to point respective environment.
-	    If there is parent environment, then ep[0] points parent
-	    environment (as dfp).  If there are no more environment,
-	    then ep[0] points block pointer (as lfp).  We call such ep
-	    as `LEP' (local EP).  We add some macros to get LEP and to
-	    detect LEP or not.
-	    In short, we replace dfp and lfp with ep and LEP.
-	  rb_block_t and rb_binding_t member `lfp' and `dfp' are removed
-	  and member `ep' is added.
-	  rename rb_thread_t's member `local_lfp' and `local_svar' to
-	  `root_lep' and `root_svar'.
-	  (VM_EP_PREV_EP(ep)): get previous environment pointer.  This macro
-	    assume that ep is not LEP.
-	  (VM_EP_BLOCK_PTR(ep)): get block pointer.  This macro assume
-	    that ep is LEP.
-	  (VM_EP_LEP_P(ep)): detect ep is LEP or not.
-	  (VM_ENVVAL_BLOCK_PTR(ptr)): make block pointer.
-	  (VM_ENVVAL_BLOCK_PTR_P(v)): detect v is block pointer.
-	  (VM_ENVVAL_PREV_EP_PTR(ptr)): make prev environment pointer.
-	  (VM_ENVVAL_PREV_EP_PTR_P(v)): detect v is prev env pointer.
-
-	* vm.c: apply above changes.
-	  (VM_EP_LEP(ep)): get LEP.
-	  (VM_CF_LEP(cfp)): get LEP of cfp->ep.
-	  (VM_CF_PREV_EP(cfp)): utility function VM_EP_PREV_EP(cfp->ep).
-	  (VM_CF_BLOCK_PTR(cfp)): utility function VM_EP_BLOCK_PTR(cfp->ep).
-
-	* vm.c, vm_eval.c, vm_insnhelper.c, vm_insnhelper.h, insns.def:
-	  apply above changes.
-
-	* cont.c: ditto.
-
-	* eval.c, eval_intern.h: ditto.
+	* ruby.c (load_file): unify each preparations and clean-ups by
+	  merging load_file_internal and load_file_internal2, and remove
+	  nested rb_protect and rb_ensure.
 
-	* proc.c: ditto.
+Sat Oct 17 05:28:32 2015  Rei Odaira  <Rei.Odaira@gmail.com>
 
-	* thread.c: ditto.
+	* test/ruby/test_symbol.rb (test_symbol_fstr_leak): add a warm-up
+	  code and check RSS to avoid false positive on AIX and false
+	  negative on Mac OS X. [Bug #10686]
 
-	* vm_dump.c: ditto.
+Fri Oct 16 15:54:37 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_exec.h: fix function name (on vm debug mode).
+	* file.c (rb_file_load_ok): open in non-blocking mode withoout
+	  releasing GVL.  don't care about others than regular files and
+	  directories.  [ruby-dev:49272] [Bug #11559]
 
-Mon Jun 11 11:52:18 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+	* ruby.c (load_file_internal): ditto.
 
-	* compile.c (iseq_set_sequence): nonstatic initializer of an
-	  aggregate type is a C99ism.
+Thu Oct 15 23:56:03 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* compile.c (enum compile_array_type_t): comma at the end of enum
-	  list is a C99ism.
+	* proc.c (rb_sym_to_proc): make void env.
 
-	* vm_backtrace.c (enum LOCATION_TYPE): ditto.
+Thu Oct 15 13:37:23 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Jun 11 06:31:33 2012  Tanaka Akira  <akr@fsij.org>
+	* proc.c (rb_sym_to_proc): move from string.c and create a Proc
+	  with no environments.  [ruby-core:71088] [Bug #11594]
 
-	* process.c (rb_proc_exec_n): revert the function removed at r35889.
+Thu Oct 15 01:57:03 2015  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-Mon Jun 11 06:20:50 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* test/objspace/test_objspace.rb
+	  (test_trace_object_allocations_start_stop_clear): clear object
+	  allocation table first to get rid of erroneous detection for obj3.
+	  [ruby-dev:49095] [Bug #11271]
 
-	* thread_pthread.c (rb_thread_create_timer_thread): assign return
-	  value to the variable err.
+Thu Oct 15 01:53:38 2015  Benoit Daloze  <eregontp@gmail.com>
 
-Mon Jun 11 06:17:06 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* test/ostruct/test_ostruct.rb: Add tests for OpenStruct#respond_to.
+	  Patch by @jeremy in [GH-1041]: https://github.com/ruby/ruby/pull/1041
 
-	* thread_pthread.c (native_cond_initialize): fix typo in r36022.
-	  this cause a failure on FreeBSD 8.2 amd64.
-	 http://fbsd.rubyci.org/~chkbuild/ruby-trunk/log/20120610T130201Z.diff.html.gz
+Thu Oct 15 01:49:25 2015  Benoit Daloze  <eregontp@gmail.com>
 
-Mon Jun 11 05:21:57 2012  Koichi Sasada  <ko1@atdot.net>
+	* lib/ostruct.rb: Finish defining OpenStruct attributes lazily.
+	  Patch by @sferik in [GH-1037]: https://github.com/ruby/ruby/pull/1037
+	  This commit is an addendum to https://github.com/ruby/ruby/pull/1033.
+	  It:
+	  1. lazily defines attribute accessors for copied and marshaled objects,
+	  2. returns nil when an attribute reader is not defined, and
+	  3. defines respond_to_missing? to maintain the same respond_to? behavior
 
-	* .gdbinit (SDR): add SDR function.  It's only for VM debugging.
+Wed Oct 14 16:56:50 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Jun 10 21:50:45 2012  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+	* configure.in: check for libunwind.h, which is not available in
+	  very old OS X SDK.  [ruby-core:71080] [Bug #11591]
 
-	* nacl/nacl_config.rb: Fixed for 32bit hosts.
+Wed Oct 14 14:11:42 2015  Brian Black  <bblack@veracode.com>
 
-Sun Jun 10 20:23:14 2012  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+	* iseq.c (rb_insn_operand_intern): change kw in callinfo disasm from the
+	  number of keyword arguments to an ordered list of the keywords used.
+	  [Feature #11589]
 
-	Fixes threading on NativeClient.
+Wed Oct 14 13:58:44 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* thread_pthread.c (timer_thread_sleep): Extracted out a function from
-	  thread_timer(). Added an alternative implementation for platforms
-	  that lacks select(2) or pipe(2).
-	  (rb_thread_create_timer_thread, native_cond_initialize,
-	  native_cond_destroy): Replaced wrong HAVE_XXX checks.
+	* parse.y (parser_nextc): send a warning to ripper, not to STDERR
+	  always.
 
-	* configure.in (pthread_attr_init): New check.
+	* parse.y (rb_warn1, rb_warning1): move argument conversions to
+	  callers.  PRIsVALUE is not valid in String#%.
 
-Sun Jun 10 21:30:11 2012  Tanaka Akira  <akr@fsij.org>
+Wed Oct 14 13:37:23 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* process.c (rb_exec_without_timer_thread): renamed from rb_exec_err.
-	  (rb_exec_err): new stub function to call
-	  rb_exec_without_timer_thread.
-	  (rb_f_exec): call rb_exec_without_timer_thread.
-	  (rb_exec): call rb_exec_without_timer_thread.
+	* lib/racc/rdoc/grammar.en.rdoc: fix spell error.
+	  [fix GH-1053][ci skip] Patch by @Matrixbirds
 
-Sun Jun 10 21:13:10 2012  Tanaka Akira  <akr@fsij.org>
+Tue Oct 13 22:06:50 2015  Tanaka Akira  <akr@fsij.org>
 
-	* process.c (rb_fork): call rb_fork_internal instead of rb_fork_err.
+	* ext/socket/raddrinfo.c (rsock_fd_family): Check sa_len.
 
-Sun Jun 10 20:55:59 2012  Tanaka Akira  <akr@fsij.org>
+Tue Oct 13 12:14:10 2015  Craig Davison  <craig65535@gmail.com>
 
-	* process.c (rb_fork_ruby): call rb_fork_internal directly.
+	* ext/socket/rsock_addrinfo (rsock_addrinfo): specify address
+	  family.  [Fix GH-1052]
 
-Sun Jun 10 20:19:40 2012  Tanaka Akira  <akr@fsij.org>
+	* ext/socket/udpsocket.c (udp_connect, udp_bind, udp_send):
+	  address family by the receiver.
 
-	* process.c (rb_fork_ruby): new function.
-	  (rb_f_fork): use rb_fork_ruby instead of rb_fork.
-	  (rb_daemon): ditto.
+Sun Oct 11 07:09:19 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* io.c (pipe_open): use rb_fork_ruby instead of rb_fork.
+	* vm_insnhelper.c (vm_push_frame): initialize other than sp (and ep)
+	  first for performance.
 
-	* internal.h (rb_fork_ruby): declared.
+Sun Oct 11 06:21:50 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Jun 10 18:58:16 2012  Akinori MUSHA  <knu@iDaemons.org>
+	* vm_eval.c, internal.h (rb_yield_1): added for performance which
+	  doesn't check Qundef.
 
-	* lib/net/http/response.rb: Remove a duplicated rdoc and leave a
-	  pointer.
+	* numeric.c (int_dotimes): use rb_yield_1.
 
-	* lib/net/http/responses.rb: Add RFC numbers to base on.
+Sun Oct 11 06:19:49 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Jun 10 18:31:42 2012  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+	* vm_insnhelper.c (vm_call_iseq_setup_normal): setup sp first
+	  for performance.
 
-	* configure.in (RUBY_NACL): Warns if $PATH does not contain the path
-	  to NativeClient SDK. PATH variable redefinition in GNUmakefile does
-	  not work for GNU make 3.81.
+Sun Oct 11 05:29:51 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Jun 10 17:54:36 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm.c (invoke_block_from_c): split this function into several
+	  functions.
 
-	* gc.h (IS_STACK_DIR_UPPER): utility macro.
+	* vm_insnhelper.c (vm_yield_callee_setup_arg): remove this function
+	  because it is only delegation function.
 
-	* thread_pthread.c (get_stack): seems stack size does not include
-	  guard size on Mac OS X.
+Sun Oct 11 03:48:46 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* thread_pthread.c (ruby_init_stack): adjust stack size for offset of
-	  addr from the bottom.
+	* gc.c (newobj_of_slowpass): fix typo (pass -> path).
+	  Pointed out by Yukihiro Matsumoto  <matz@ruby-lang.org>.
 
-Sun Jun 10 15:49:47 2012  Tanaka Akira  <akr@fsij.org>
+	* gc.c (newobj_of_...): `of' is unnecessary.
 
-	* process.c (retry_fork): call after_fork except in a child process.
-	  (rb_fork_internal): restrict after_fork call condition.
+Sat Oct 10 19:04:42 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Jun 10 14:19:33 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* ext/socket/udpsocket.c (udp_connect, udp_bind): get open files
+	  inside ensure functions.
 
-	* configure.in: NetBSD 6 adds libexecinfo but it only works on amd64.
-	 http://www.mail-archive.com/source-changes-full@netbsd.org/msg38729.html
+Sat Oct 10 18:35:12 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Jun 10 12:43:23 2012  Tanaka Akira  <akr@fsij.org>
+	* vm_insnhelper.c (vm_call_method0): do not propagate enable_fastpath,
+	  but pass dummy CC to prevent wrong caching.
 
-	* process.c (rb_f_exec): call rb_exec_async_signal_safe except on
-	  Mac OS X.  cf. the comment in before_exec_non_async_signal_safe.
+Sat Oct 10 15:28:45 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Jun 10 12:15:18 2012  Tanaka Akira  <akr@fsij.org>
+	* import a github pull request
+	  https://github.com/ruby/ruby/pull/1050
+	  by Kazuho Oku <kazuho@natadeco.co>.
 
-	* io.c (popen_exec): don't call rb_thread_atfork_before_exec.  use
-	  rb_exec_async_signal_safe instead of rb_exec_err.
-	  (pipe_open): use rb_fork_async_signal_safe instead of rb_fork_err.
+	  This pull request has the following commits.
 
-Sun Jun 10 11:44:57 2012  Tanaka Akira  <akr@fsij.org>
+	* gc.c: reduce # of args to 6 (max. of register args on x86-64) so
+	  that the `newobj_of_slowpass` can be called via TCO.
 
-	* process.c (rb_fork_internal): call after_fork only unless
-	  chfunc_is_async_signal_safe.
+	* gc.c (newobj_of), string.c (str_duplicate): for performance,
+	  the hot functions must be inlined.
 
-Sun Jun 10 11:33:01 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* gc.c: for performance, preceding arguments of `.*newobj_of.*`
+	  must be same, so that the arg registers can be reused in case of
+	  TCO.
 
-	* ext/openssl/ossl_pkey_ec.c
-	  test/openssl/test_pkey_ec.rb: Add support for EC_POINT_mul.
-	  Patch provided by Sambasiva Suda. Thanks!
-	  [ruby-core:44408][ruby-trunk - Feature #6310]
+Sat Oct 10 08:52:21 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Jun 10 10:48:15 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* ext/socket/udpsocket.c (udp_connect, udp_bind, udp_send): fix
+	  memory leaks at closed socket.
 
-	* lib/openssl/ssl.rb: Use a simple random number to generate the
-	  session id. MD5, as was used before, causes problems when
-	  using a FIPS version of OpenSSL. Issue was found by Jared
-	  Jennings, thank you!
-	  [ruby-trunk - Bug #6137]
+Fri Oct  9 17:29:07 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Sun Jun 10 10:27:34 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* lib/net/ftp.rb (parse257): refactor.
 
-	* NEWS: Add note about the new private key export behavior.
+Fri Oct  9 16:42:26 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Sun Jun 10 10:24:51 2012  Tanaka Akira  <akr@fsij.org>
+	* lib/net/imap.rb: use frozen_string_literal: true.
 
-	* process.c (rb_exec_async_signal_safe): exported.
+	* test/net/imap/test_imap.rb: ditto.
 
-	* ext/pty/extconf.rb: modify $INCFLAGS to include internal.h
+	* test/net/imap/test_imap_response_parser.rb: ditto.
 
-	* ext/pty/pty.c: include internal.h.
-	  (chfunc): don't call rb_thread_atfork_before_exec.  use
-	  rb_exec_async_signal_safe instead of rb_f_exec.
-	  (establishShell): set up earg.  use rb_fork_async_signal_safe
-	  instead of rb_fork_err.
+Fri Oct  9 15:52:28 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* internal.h (rb_exec_async_signal_safe): declared.
-	  (rb_fork_async_signal_safe): declared.
+	* lib/net/ftp.rb: use frozen_string_literal: true.
 
-Sun Jun 10 10:21:37 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* test/net/ftp/test_buffered_socket.rb: ditto.
 
-	* ext/openssl/ossl.c
-	  ext/openssl/ossl_pkey_rsa.c
-	  ext/openssl/ossl_pkey_dsa.c
-	  ext/openssl/ossl_pkey_ec.c: Forbid export passwords that are less
-	  than four characters long, as OpenSSL itself does not allow this.
-	  Issue found by Eric Hodel.
-	* ext/openssl/ossl_pkey_ec.c: Add export as an alias of to_pem,
-	  following the PKey interface contract.
-	* test/openssl/test_pkey_dsa.rb
-	  test/openssl/test_pkey_rsa.rb
-	  test/openssl/test_pkey_ec.rb: Add tests that assert correct
-	  behaviour when dealing with passwords that are less than four
-	  characters long.
-	  [ruby-core: 42281][ruby-trunk - Bug #5951]
+	* test/net/ftp/test_ftp.rb: ditto.
 
-Sun Jun 10 10:14:26 2012  Tanaka Akira  <akr@fsij.org>
+	* test/net/ftp/test_mlsx_entry.rb: ditto.
 
-	* process.c (rb_f_exec): use rb_exec_arg_prepare.
+Fri Oct  9 14:12:35 2015  Shota Fukumori (sora_h)  <her@sorah.jp>
 
-Sun Jun 10 06:43:51 2012  Tanaka Akira  <akr@fsij.org>
+	* ext/openssl/lib/openssl/ssl.rb: Revert r52082 because it was
+	  dropping TLS v1.1 support too. Supporting only TLS v1.2 is too
+	  early, because many popular websites still don't support it.
 
-	* process.c: split after_exec into async-signal-safe part and rest.
-	  (after_exec_async_signal_safe): extracted from after_exec.
-	  (after_exec_non_async_signal_safe): ditto.
-	  (after_exec): call them.
-	  (rb_exec_async_signal_safe): call after_exec_async_signal_safe.
-	  (rb_exec_err): call after_exec_non_async_signal_safe instead of
-	  after_exec.
+	  For instance, Servers where aws-sdk connects to still don't support
+	  TLS v1.2 and it became broken.
 
-Sun Jun 10 06:21:10 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	  We should consider more carefully about this.
 
-	* NEWS: document new features of Ruby OpenSSL.
+	  [Fix GH-873] [Feature #11524]
 
-Sun Jun 10 03:09:41 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+Fri Oct  9 12:52:08 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* ext/openssl/ossl.c: Fix error in example. Patch by David Albert.
+	* compile.c (iseq_compile_each): Dynamic string literals (e.g.,
+	  "#{x}") should not be frozen because they don't literally
+	  represent strings.
+	  https://twitter.com/shugomaeda/status/651937650027401216
+	  https://twitter.com/yukihiro_matz/status/651942882312482817
+	  https://twitter.com/yukihiro_matz/status/651980835181096960
 
-	  Add/extend existing documentation. Examples now also cover RSA
-	  signatures and PBKDF2.
-	  [ruby-core: 45154][ruby-trunk - Bug #6475]
+Fri Oct  9 06:52:49 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
+	* benchmark/prepare_require.rb: skip file creation if it already
+	  exist. Suggested by ko1.
 
-Sun Jun 10 01:41:45 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+Fri Oct  9 06:18:04 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* benchmark/bm_require.rb: new benchmark for require.
+	* benchmark/bm_require_thread.rb: new benchmark for conflicting
+	  require vs thread. like [Bug #11559]
+	* prepare_require.rb: new file for preparing above tests.
+	* prepare_require.rb: ditto.
 
-	* ext/openssl/ossl_ssl.c: Introduce SSLContext#renegotiation_cb and
-	  remove SSLContext#disable_client_renegotiation and related
-	  functionality introduced in r35797. The new callback approach
-	  gives clients maximum flexibility to decide on their own what to
-	  do on renegotiation attempts.
-	  Add documentation for SSL module and SSLError.
-	* test/openssl/test_ssl.rb: Add a test for
-	  SSLContext#renegotiation_cb.
+Thu Oct  8 14:10:45 2015  Zachary Scott  <zzak@ruby-lang.org>
 
-Sun Jun 10 01:37:18 2012  Tanaka Akira  <akr@fsij.org>
+	* ext/openssl/lib/openssl/ssl.rb: Default to TLSv1.2 and drop TLS v1
+	  Patch provided by @claudijd [Fixes GH-873] [Feature #11524]:
+	  https://github.com/ruby/ruby/pull/873
 
-	* process.c (rb_fork_internal): initialize exc.
+Wed Oct  7 22:55:02 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Jun 10 00:19:25 2012  Tanaka Akira  <akr@fsij.org>
+	* test/minitest/metametameta.rb (with_output): restore output to
+	  fix mixing test result output in worker responses.
 
-	* process.c: don't use non async-signal-safe functions in a child
-	  process before exec, for invoking a command.
-	  (rb_exec_atfork): call rb_exec_async_signal_safe only.
-	  (retry_fork): take chfunc_is_async_signal_safe argument.  call
-	  before_fork and after_fork only unless chfunc_is_async_signal_safe.
-	  (send_child_error): take chfunc_is_async_signal_safe argument.
-	  send an exception only unless chfunc_is_async_signal_safe.
-	  (recv_child_error): take chfunc_is_async_signal_safe argument.
-	  receive an exception only unless chfunc_is_async_signal_safe.
-	  (rb_fork_internal): renamed from rb_fork_err and take
-	  chfunc_is_async_signal_safe argument.
-	  use rb_protect only unless chfunc_is_async_signal_safe.
-	  (rb_fork_err): call rb_fork_internal with false as
-	  chfunc_is_async_signal_safe.
-	  (rb_fork_async_signal_safe): call rb_fork_internal with true as
-	  chfunc_is_async_signal_safe.
-	  (rb_spawn_process): call rb_fork_async_signal_safe instead of
-	  rb_fork_err.
+Wed Oct  7 21:32:51 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Jun  9 23:57:03 2012  Tanaka Akira  <akr@fsij.org>
+	* string.c (str_duplicate): move from rb_str_resurrect to short
+	  circuit initialization.
 
-	* process.c (rb_fork_err): rewrite a complex "if" statement.
+Wed Oct  7 20:43:14 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Jun  9 23:44:29 2012  Tanaka Akira  <akr@fsij.org>
+	* string.c (rb_str_resurrect): fix resurrection of short enough to
+	  be embedded but not embedded string.
 
-	* process.c (before_exec_async_signal_safe): extracted from
-	  before_exec.
-	  (before_exec_non_async_signal_safe): ditto.
-	  (before_exec): call before_exec_async_signal_safe and
-	  before_exec_non_async_signal_safe.
-	  (rb_exec_async_signal_safe): call before_exec_async_signal_safe.
-	  (rb_exec_err): call before_exec_non_async_signal_safe instead of
-	  before_exec.
+Wed Oct  7 20:17:29 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Jun  9 23:36:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gc.c (newobj_of): divide fast path and slow path
+	  to avoid register savings for fast path.
 
-	* iseq.c (iseq_load, insn_operand_intern, rb_iseq_disasm)
-	  (rb_iseq_parameters): use rb_id2str() instead of rb_id2name() to
-	  keep encoding.
+	  This idea is given by Kazuho Oku <kazuho@natadeco.co>.
 
-	* string.c (rb_str_symname_p): new function that checks if the string
-	  is valid as a symbol name.  split from sym_inspect().
+Wed Oct  7 17:30:50 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Jun  9 22:27:05 2012  Tanaka Akira  <akr@fsij.org>
+	* string.c (rb_str_times): optimize for the argument 0 and 1.
 
-	* process.c (retry_fork): rewrite a complex "for" statement by
-	  simple statements.
+Wed Oct  7 01:20:46 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Jun  9 21:50:04 2012  Tanaka Akira  <akr@fsij.org>
+	* gc.h, gc.c: introduce new debug function rb_obj_info_dump(VALUE obj)
+	  which prints the result of rb_raw_obj_info(..., obj).
 
-	* process.c (retry_fork): extracted from rb_fork_err.
-	  (send_child_error): ditto.
-	  (recv_child_error): ditto.
+Wed Oct  7 01:16:11 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Jun  9 17:21:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_args.c: remove an unused field args_info::calling.
 
-	* iseq.c (iseq_load): type is a symbol, and invalid as ID in common.
+Tue Oct  6 23:43:10 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Jun  9 10:57:14 2012  Tanaka Akira  <akr@fsij.org>
+	* proc.c (rb_method_entry_min_max_arity): should support
+	  OPTIMIZED_METHOD_TYPE_CALL.
 
-	* process.c (rb_exec_async_signal_safe): extracted from rb_exec_err.
+Tue Oct  6 21:29:08 2015  Tanaka Akira  <akr@fsij.org>
 
-Sat Jun  9 09:31:07 2012  Tanaka Akira  <akr@fsij.org>
+	* lib/tmpdir.rb (Dir.tmpdir): return duplicated string to be
+	  modify safely even when $SAFE > 0.
 
-	* process.c: simplified because close_others option is always
-	  enabled by default.
-	  (rb_f_exec): don't need to set the option.
-	  (rb_exec_arg_prepare): don't need to set the option.  don't need
-	  default_close_others argument.
-	  (rb_spawn_internal): don't need to give default_close_others
-	  argument for rb_exec_arg_prepare.  don't need default_close_others
-	  argument.
-	  (rb_spawn_err): don't need to give default_close_others
-	  argument for rb_spawn_internal.
-	  (rb_spawn): don't need to give default_close_others
-	  argument for rb_spawn_internal.
-	  (rb_f_system): don't need to give default_close_others argument for
-	  rb_spawn_internal.
-	  (rb_f_spawn): don't need to give default_close_others argument for
-	  rb_exec_arg_prepare.
+Tue Oct  6 19:24:38 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Jun  9 09:00:58 2012  Tanaka Akira  <akr@fsij.org>
+	* vm_insnhelper.c (vm_call_method0): use switch() for visibilities
+	  (for readability).
 
-	* process.c (rb_proc_exec): call before_exec() here addition to
-	  rb_exec_err.
+Tue Oct  6 19:23:58 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Jun  9 08:30:52 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* proc.c (Init_Proc): Proc#call and others should be public.
 
-	* thread_pthread.c (ruby_init_stack): use stack info if possible.
+Tue Oct  6 18:51:51 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Jun  9 08:21:32 2012  Eric Hodel  <drbrain@segment7.net>
+	* method.h: IMEMO_FL_USER3 and IMEMO_FL_USER4 is not needed any more.
 
-	* README.EXT (prepare extconf.rb):  Added note to see MakeMakefile for
-	  documentation of extconf.rb functions.  Patch by Zachary Scott.
-	  [ruby-trunk - Feature #6522]
-	* README.EXT (Appendix C):  Removed in favor of MakeMakefile.
-	  Patch by Zachary Scott.
-	* lib/mkmf.rb:  Merged documentation from README.EXT Appendix C.  Patch
-	  by Zachary Scott.
+Tue Oct  6 18:47:45 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Jun  9 08:16:47 2012  Eric Hodel  <drbrain@segment7.net>
+	* method.h: remove METHOD_ENTRY_SAFE(me) and related code
+	  because $SAFE = 3 and 4 is not available.
+	  Now, $SAFE is not checked on method dispatch at all.
 
-	* doc/re.rdoc:  Completed wording in the description of the =~ operator.
-	  [ruby-trunk - Bug #6529]
+	* vm_eval.c, vm_insnhelper.c, vm_method.c: ditto.
 
-Sat Jun  9 08:09:38 2012  Eric Hodel  <drbrain@segment7.net>
+Tue Oct  6 13:56:14 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* string.c (rb_str_start_with):  Removed "p" from start_with? examples
-	  to match other String method examples.  [ruby-trunk - Bug #6553]
-	* string.c (rb_str_end_with):  Updated end_with? to use code markup
-	  instead of italic.
+	* include/ruby/ruby.h: turn function macros into inline functions,
+	  for debuggers.
 
-Sat Jun  9 07:56:03 2012  Eric Hodel  <drbrain@segment7.net>
+	* include/ruby/ruby.h: turn constant macros into enums, for
+	  debuggers.
 
-	* lib/benchmark.rb:  Updated formatting of Benchmark documentation for
-	  consistency.  [ruby-trunk - Bug #6533]
+Tue Oct  6 13:48:05 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sat Jun  9 07:46:26 2012  Eric Hodel  <drbrain@segment7.net>
+	* method.h: typo fix. Patch by @davydovanton [fix GH-1032][ci skip]
 
-	* lib/delegate.rb:  Added documentation for Delegator#!.  Patch by
-	  Zachary Scott.  [ruby-trunk - Feature #6534]
+Tue Oct  6 06:54:34 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Jun  9 07:39:50 2012  Eric Hodel  <drbrain@segment7.net>
+	* iseq.c (rb_iseq_free): free iseq::variable_body to avoid memory
+	  leak.
 
-	* lib/net/http/responses.rb:  Add RFC 6585 response codes.  Patch by
-	  Sangil Jung.  [ruby-trunk - Feature #6480]
-	* lib/net/http/response.rb:  ditto
-	* lib/net/http.rb:  ditto
-	* lib/webrick/httpstatus.rb:  ditto
+Tue Oct  6 06:32:52 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Jun  9 01:24:28 2012  Tanaka Akira  <akr@fsij.org>
+	* proc.c: enable optimization of Proc#call.
+	  [Feature #11569]
 
-	* process.c (rb_exec_err): before_exec() call moved from proc_exec_cmd
-	  and proc_exec_sh.
-	  (rb_proc_exec): ditto.
+	* NEWS: write about this optimization and incompatibilities.
 
-Sat Jun  9 01:11:07 2012  Tanaka Akira  <akr@fsij.org>
+	* test/ruby/test_backtrace.rb: catch up this fix.
 
-	* include/ruby/intern.h (rb_exec_arg_init): declaration changed to
-	  return a value.
+Tue Oct  6 04:41:03 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* process.c (rb_exec_arg_init): return a value.
+	* vm_insnhelper.c: solve goto spaghetti.
 
-Fri Jun  8 23:44:14 2012  Tanaka Akira  <akr@fsij.org>
+	  Change all goto statement across blocks to tail call functions.
 
-	* process.c: don't check the availability of FD_CLOEXEC.  It should
-	  be available if fork() is available.
+Tue Oct  6 02:29:38 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* io.c: ditto.
+	* string.c (rb_str_resurrect): optimize by short circuit to copy
+	  hidden string without checking length, encoding and so on.
 
-Fri Jun  8 22:39:32 2012  Tanaka Akira  <akr@fsij.org>
+Mon Oct  5 23:08:17 2015  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-	* process.c (rb_fork_err): revert r35955.  The condition needs !chfunc
-	  to close ep[0] and ep[1].  The catched exception is re-raised
-	  immediately after that if status is not NULL.
+	* test/ruby/test_thread.rb (test_handle_interrupt_blocking): check if
+	  exception handling was postponed until sleep.
 
-Fri Jun  8 19:43:33 2012  Tanaka Akira  <akr@fsij.org>
+Mon Oct  5 22:25:49 2015  Tanaka Akira  <akr@fsij.org>
 
-	* process.c (rb_exec_err): after_exec() call moved from proc_exec_cmd
-	  and proc_exec_sh.
-	  (rb_proc_exec): ditto.
+	* lib/pp.rb: Use frozen_string_literal: true.
 
-Fri Jun  8 19:00:59 2012  Tanaka Akira  <akr@fsij.org>
+	* lib/prettyprint.rb: Ditto.
 
-	* process.c (ARGV_COUNT): unused macro removed.
-	  (ARGV_SIZE): ditto.
-	  (ALLOC_ARGV): ditto.
-	  (ALLOC_ARGV_WITH_STR): ditto.
+	* lib/resolv.rb: Ditto.
 
-Fri Jun  8 16:19:33 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/tmpdir.rb: Ditto.
 
-	* test/runner.rb (src_testdir): expand real path so that
-	  TestGem#test_self_find_files does not fail by aliased load path when
-	  srcdir contains a symbolic link.
+	* test/test_pp.rb: Ditto.
 
-	* tool/runruby.rb (srcdir): ditto.
+	* test/test_prettyprint.rb: Ditto.
 
-Fri Jun  8 12:04:39 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* tool/transcode-tblgen.rb: Ditto.
 
-	* process.c (rb_fork_err): error state in the child process is prior
-	  to exceptions in proc_syswait().
+Mon Oct  5 20:39:32 2015  Benoit Daloze  <eregontp@gmail.com>
 
-	* process.c (rb_fork_err): determine status on errors.
+	* test/ruby/test_thread.rb: fix potential race condition.
+	  The thread could have a "sleep" status because it tries
+	  to acquire the mutex, but does not have it yet.
 
-	* ext/pty/pty.c (establishShell): reraise exception if something
-	  raised during sleep.
+Mon Oct  5 15:39:30 2015  Zachary Scott  <zzak@ruby-lang.org>
 
-	* ext/pty/pty.c (establishShell): now needs status to protect from
-	  exceptions in rb_fork_err().
+	* numeric.c: [DOC] Overview for Numeric class by Joe Corcoran
+	  This patch was created at ROSSConf Berlin 2015 [Bug #11555]
 
-Thu Jun  7 22:13:05 2012  Tanaka Akira  <akr@fsij.org>
+Mon Oct  5 15:34:56 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* process.c (rb_fork_err): Fix the condition to use rb_protect.
+	* proc.c (proc_new): link ep to calling block.
+	  [ruby-core:70980] [Bug #11566]
 
-Thu Jun  7 20:29:12 2012  Tanaka Akira  <akr@fsij.org>
+Mon Oct  5 00:53:51 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* include/ruby/intern.h: rb_exec_arg and related stuff moved back from
-	  internal.h
+	* dir.c (rb_dir_getwd): make ASCII-8BIT if filesystem encoding is
+	  US-ASCII, like as Dir.glob.
 
-Thu Jun  7 15:53:03 2012  Koichi Sasada  <ko1@atdot.net>
+Sun Oct  4 23:39:09 2015  Tanaka Akira  <akr@fsij.org>
 
-	* .gdbinit: add function `trace_machine_instructions' to trace
-	  in native machine assemble.
-	  See https://bugs.ruby-lang.org/projects/ruby-trunk/wiki/MachineInstructionsTraceWithGDB
-	  for more details.
+	* enum.c (nmin_filter): Fix limit value.
+	  patch by Helder Pereira.
+	  [Bug #11471] [ruby-core:70477]
 
-Wed Jun  6 21:31:21 2012  Tanaka Akira  <akr@fsij.org>
+Sun Oct  4 15:11:48 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* process.c (proc_exec_cmd) renamed from proc_exec_v.
-	  (proc_exec_sh): renamed from rb_proc_exec_e.
-	  (proc_spawn_cmd_internal): renamed from proc_spawn_v.
-	  (proc_spawn_cmd): renamed from proc_spawn_n.
-	  (proc_spawn_sh): renamed from proc_spawn.
+	* enc/euc_jp.c (mbc_case_fold): check given string is valid or not,
+	  and if invalid, return 1. [Bug #11486]
 
-Wed Jun  6 21:18:47 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Sun Oct  4 10:09:57 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* process.c (try_with_sh): please take care of the macro defined by
-	  you.
+	* dir.c (rb_dir_getwd): normalize OS path to UTF-8 on OS X.
 
-Wed Jun  6 20:45:08 2012  Tanaka Akira  <akr@fsij.org>
+Sun Oct  4 00:09:45 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* process.c (proc_exec_v): don't call dln_find_exe_r here because it
-	  is not async-signal-safe and proc_exec_v is called in a child
-	  process.
-	  command_abspath field of rb_exec_arg.
-	  (rb_exec_fillarg): call dln_find_exe_r and set command_abspath.
-	  (rb_exec_err): Give the absolute path of the invoking command for
-	  proc_exec_v, instead of the command name.
+	* template/ruby-runner.c.in: wrapper to set dynamic loading path
+	  environment variable.  /bin/sh on Mac OS X 10.11 (El Capitan)
+	  clears DYLD_LIBRARY_PATH.
 
-	* internal.h: add command_abspath field for rb_exec_arg.
+	  it must:
+	  - do nothing even if current directory is not present
+	  - do not set other environment variables, e.g. PWD, SHLVL, etc
+	  - do not open other FDs, e.g. pipes for timer thread
 
-Wed Jun  6 20:08:01 2012  Tanaka Akira  <akr@fsij.org>
+Sun Oct 2 10:59:00 2015  schneems  <richard.schneeman@gmail.com>
 
-	* process.c (try_with_sh): take envp argument.
-	  (exec_with_sh): ditto.  use it for execve.
-	  (proc_exec_v): provide envp for try_with_sh.
+	* ext/pathname/lib/pathname.rb: freeze string literals for
+	  reduced object allocation.
+	  [Feature #11375] [ruby-core:70043]
 
-Wed Jun  6 13:25:04 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Fri Oct  2 09:20:20 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* win32/win32.c, include/ruby/win32.h (rb_w32_wrap_io_handle): new API.
-	  this API wraps an I/O handle (HANDLE or SOCKET) and returns fd.
-	  the second parameter should be combination of O_*, for example,
-	  O_RDWR | O_BINARY | O_NOINHERIT.
+	* common.mk, lib/unicode_normalize/tables.rb: Change Unicode
+	  Version for character normalization data from 7.0.0 to
+	  8.0.0.
 
-	* win32/win32.c, include/ruby/win32.h (rb_w32_unwrap_io_handle): new
-	  API.  this API unwraps an I/O handle and close the fd (not closes
-	  the handle itself).
+Fri Oct  2 00:18:39 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	[Feature #4906] [ruby-core:37227]
+	* proc.c (proc_mark): block.ep of Proc from Symbol is now NULL.
+	  [ruby-core:70961] [Bug #11560]
 
-Wed Jun  6 13:18:26 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed Sep 30 15:47:13 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* win32/win32.c (rb_w32_close): of course, console handle is not socket.
+	* vm_args.c (vm_caller_setup_arg_block): bypass Symbol#to_proc
+	  call to optimize symbol block passing.
 
-Wed Jun  6 12:37:43 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed Sep 30 01:34:34 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* process.c (rb_run_exec_options_err): allocate a temporary buffer for
-	  run_exec_dup2() for restoring fds on non-fork environments.
+	* parse.y (parser_free): fix memory leak at syntax error when
+	  warn-indent is enabled.
 
-Wed Jun  6 09:45:21 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Tue Sep 29 22:27:50 2015  Benoit Daloze  <eregontp@gmail.com>
 
-	* test/dl/test_c_{struct_entry,union_entity}.rb: sorry, typos.
+	* parse.y: fix minor typo. [ci skip][fix GH-1038].
+	  Patch by @ltratt.
 
-Wed Jun  6 05:27:54 2012  Tanaka Akira  <akr@fsij.org>
+Tue Sep 29 16:53:53 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* process.c (rb_exec_fillarg): check use_shell field before accessing
-	  a union field.
+	* tool/unicode_norm_gen.tmpl, lib/unicode_normalize/tables.rb:
+	  get rid of many .freeze commands by using frozen_string_literal
+	  pragma.
 
-Wed Jun  6 04:58:44 2012  Tanaka Akira  <akr@fsij.org>
+Tue Sep 29 16:37:29 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* process.c (rb_spawn_process): prog variable is not used for Unix.
+	* compile.c (compile_dstr_fragments): fix performance by omitting
+	  the first empty string only for keeping literal encoding if
+	  other literals are too.  [ruby-core:70930] [Bug #11556]
 
-Wed Jun  6 00:20:37 2012  Tanaka Akira  <akr@fsij.org>
+	* string.c (rb_str_append_literal): append but keep encoding non
+	  US-ASCII.
 
-	* internal.h (rb_exec_arg_init): change return type to void.
+Mon Sep 28 17:40:17 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* process.c (rb_exec_arg_init): don't return a value.
-	  (rb_exec_arg_prepare): ditto.
-	  (rb_spawn_process): don't take the prog argument.  extract the
-	  information from earg.
-	  (rb_spawn_internal): follow rb_spawn_process change.
-	  (rb_f_spawn): ditto.
+	* lib/net/ftp.rb (mtime): use usec instead of fractions to parse
+	  decimal fractions of a second correctly when the number of digits
+	  is not 6.
 
-	* io.c (pipe_open): don't take the prog argument.  extract the
-	  information from eargp.
-	  (pipe_open_v): follow pipe_open change.
-	  (pipe_open_s): ditto.
+Mon Sep 28 16:07:08 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Tue Jun  5 23:51:33 2012  Tanaka Akira  <akr@fsij.org>
+	* lib/net/ftp.rb (mtime): parse decimal fractions of a second as
+	  specified in RFC 3659.
 
-	* internal.h (rb_exec_arg): use union to represent command invocation
-	  with/without shell.
+Mon Sep 28 10:31:12 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* process.c: follow the rb_exec_arg change.
+	* test/test_forwardable.rb: Write basic tests for lib/forwardable.
+	  [fix GH-1035] Patch by @kachick
 
-	* io.c (pipe_open): ditto.
+Sun Sep 27 23:32:46 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Jun  5 22:28:46 2012  Tanaka Akira  <akr@fsij.org>
+	* class.c (rb_define_class, rb_define_class_id_under): refine
+	  error messages.
 
-	* internal.h: rb_exec_arg and related stuff moved from intern.h
+	* class.c (rb_define_module, rb_define_module_id_under): ditto,
+	  and make consistent with class.
 
-	* include/ruby/intern.h (rb_proc_exec_n): removed.
+Sun Sep 27 18:44:43 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Jun  5 21:57:22 2012  Tanaka Akira  <akr@fsij.org>
+	* ChangeLog: removed duplicated message.
 
-	* process.c (rb_exec_arg_fixup): allocate a temporary buffer for
-	  run_exec_dup2 here because it should be async-signal-safe.
-	  (run_exec_dup2): use the temporary buffer.
-	  (run_exec_dup2_tmpbuf_size): new function.
+Sun Sep 27 15:46:58 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* include/ruby/intern.h (rb_exec_arg): add dup2_tmpbuf field.
+	* ruby.c (process_options): add an option to enable/disable
+	  frozen-string-literal.  [Feature #8976]
 
-Tue Jun  5 20:13:15 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* compile.c (iseq_compile_each): override compile option by option
+	  given by pragma.
 
-	* object.c (rb_obj_init_copy): should check if trusted too.
+	* iseq.c (rb_iseq_make_compile_option): extract a function to
+	  overwrite rb_compile_option_t.
 
-Tue Jun  5 19:59:13 2012  Tanaka Akira  <akr@fsij.org>
+	* parse.y (parser_set_compile_option_flag): introduce pragma to
+	  override compile options.
 
-	* process.c (strtok): declaration removed because it is not used.
+	* parse.y (magic_comments): new pragma "frozen-string-literal".
+	  [Feature #8976]
 
-Tue Jun  5 19:33:51 2012  Tanaka Akira  <akr@fsij.org>
+Sun Sep 27 08:16:35 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* process.c (proc_spawn): don't detect simple command line here
-	  because rb_exec_fillarg already did.
+	* lib/ostruct.rb (delete_field): do not raise NameError for
+	  existing keys.  [Fix GH-1033]
 
-Tue Jun  5 19:21:10 2012  Tanaka Akira  <akr@fsij.org>
+Sun Sep 27 00:34:31 2015  Zachary Scott  <zzak@ruby-lang.org>
 
-	* process.c (rb_exec_fillarg): bail out a loop eagerly.
+	* lib/ostruct.rb: Move method definitions for getter/setter to be lazy
+	  Patch by @sferik in [GH-1033]: https://github.com/ruby/ruby/pull/1033
 
-Tue Jun  5 19:15:14 2012  Tanaka Akira  <akr@fsij.org>
+Fri Sep 25 10:07:25 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* process.c: add comments about async-signal-safe.
+	* lib/net/http.rb: removed unused variable. It's removed at r13648.
+	  [fix GH-1022] Patch by @nkondratyev
 
-	* io.c: ditto.
+Fri Sep 25 09:48:27 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Jun  5 09:25:10 2012  Eric Hodel  <drbrain@segment7.net>
+	* gems/bundled_gems: upgrade to minitest-5.8.1
 
-	* io.c:  Edited documentation for IO and File open and new and
-	  Kernel#open for consistency and clarity.
+Fri Sep 25 09:47:12 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Mon Jun  4 21:53:56 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* id_table.c: fix typo. [ci skip][fix GH-1031] Patch @davydovanton
 
-	* win32/win32.c (rb_w32_sysinit): let the system not display the
-	  critical-error-handler message box and the Windows Error Reporting
-	  dialog.  [ruby-core:45389] [Bug #6535]
+Fri Sep 25 07:54:05 2015  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Mon Jun  4 19:36:25 2012  Tanaka Akira  <akr@fsij.org>
+	* test/gdbm/test_gdbm.rb (TestGDBM#test_s_open_lock): skip
+	  this test on AIX. The issue is the same as on Solaris.
+	  [ruby-dev:47631]
 
-	* process.c (rb_exec_fillarg): allocate one more element before
-	  beginning in argv_str for try_with_sh.
+Thu Sep 24 17:25:09 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* internal.h (ARGVSTR2ARGC): adjust for the above change.
-	  (ARGVSTR2ARGV): ditto.
+	* parse.y (paren_args): fix separator token at `foo::bar()` in
+	  ripper.
 
-Mon Jun  4 19:17:06 2012  Tanaka Akira  <akr@fsij.org>
+Thu Sep 24 00:00:17 2015  Rei Odaira  <Rei.Odaira@gmail.com>
 
-	* internal.h (ARGVSTR2ARGC): defined.
-	  (ARGVSTR2ARGV): defined.
+	* complex.c: ruby/config.h must be included before math.h
+	  because it defines _LARGE_FILES on AIX and _LARGE_FILES
+	  must be defined before sys/types.h is included from math.h.
+	  [Bug #11483]
 
-	* process.c (proc_exec_v): use ARGVSTR2ARGV.
-	  (rb_spawn_process): use ARGVSTR2ARGC and ARGVSTR2ARGV.
+Wed Sep 23 22:22:38 2015  Zachary Scott  <zzak@ruby-lang.org>
 
-	* io.c (pipe_open): use ARGVSTR2ARGV.
+	* ext/openssl/ossl_pkcs12*: Remove svn commit id macro
 
-Mon Jun  4 16:13:00 2012  Koichi Sasada  <ko1@atdot.net>
+Wed Sep 23 01:11:28 2015  Zachary Scott  <zzak@ruby-lang.org>
 
-	* vm_insnhelper.h: remove magical code "lfp[0] & 0x02".
-	  Current VM doesn't use this bit.
+	* ext/openssl/*: Remove svn commit id macros to make sync easier
 
-	* vm_core.h (RUBY_VM_GET_BLOCK_PTR): added.
+Tue Sep 22 04:20:01 2015  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
 
-	* eval.c (rb_block_given_p): use RUBY_VM_GET_BLOCK_PTR().
+	* test/drb/test_drb.rb: Run Rinda/DRb tests on localhost. [Fix GH-1027]
+	  patch by voxik.
 
-	* vm_eval.c (rb_f_block_given_p): ditto.
+	* test/rinda/test_rinda.rb: ditto
 
-Mon Jun  4 15:39:33 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Sep 21 20:53:39 2015  tbpgr  <tbpgr@tbpgr.jp>
 
-	* win32/win32.c (constat_apply): apply VT100 functions.
-	  [ruby-core:44958] [Feature #6418]
+	* test/win32ole/test_win32ole_event.rb: fix typo.
+	  swbemsink_avairable? => swbemsink_available?  [Fix GH-1025]
 
-	* win32/win32.c (constat_parse): parse some VT100 escape sequence.
+Sun Sep 20 10:07:35 2015  Anton Davydov  <antondavydov.o@gmail.com>
 
-Mon Jun  4 14:06:12 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* cont.c (rb_callcc): [DOC] append continuations example accros
+	  methods.  [Fix GH-1026]
 
-	* process.c (rb_exec_err): should preserve errno.
+Sun Sep 20 03:20:21 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Jun  4 13:10:11 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* iseq.c (rb_iseq_free): free rb_iseq_t::body::cc_entries.
 
-	* test/dl/test_c_{struct_entry,union_entity}.rb: broken require.
+Sun Sep 20 02:46:34 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Jun  4 12:01:21 2012  Koichi Sasada  <ko1@atdot.net>
+	* vm_core.h: split rb_call_info_t into several structs.
+	  * rb_call_info (ci) has compiled fixed information.
+	  * if ci->flag & VM_CALL_KWARG, then rb_call_info is
+	    also rb_call_info_with_kwarg. This technique reduce one word
+	    for major rb_call_info data.
+	  * rb_calling_info has temporary data (argc, blockptr, recv).
+	    for each method dispatch. This data is allocated only on
+	    machine stack.
+	  * rb_call_cache is for inline method cache.
 
-	* test/ruby/test_backtrace.rb: fix test.
-	  Windows path includes `:' character.
+	  Before this patch, only rb_call_info_t data is passed.
+	  After this patch, above three structs are passed.
 
-Mon Jun  4 11:42:39 2012  Koichi Sasada  <ko1@atdot.net>
+	  This patch improves:
+	  * data locality (rb_call_info is now read-only data).
+	  * reduce memory consumption (rb_call_info_with_kwarg,
+	    rb_calling_info).
 
-	* vm_core.h (rb_location_t): fix type and field name.
-	  (1) rename rb_location_t to rb_iseq_location_t.
-	  (2) rename field names of rb_iseq_location_t to adjust
-	      RubyVM::Backtrace::Location methods.
-	      (2-1) filename -> path
-	      (2-2) filepath -> absolute_path
-	      (2-3) basename -> base_label
-	      (2-4) name -> label
-	  (3) rename filed name rb_iseq_location_t#line_no to
-	      rb_iseq_location_t#first_lineno to clear purpose of this field.
-	  (4) The field names rb_binding_t#(filename|line_no) are also renamed
-	      to rb_binding_t#(path|first_lineno).
+	* compile.c: use above data.
 
-	* compile.c: apply above changes.
+	* insns.def: ditto.
 
 	* iseq.c: ditto.
 
-	* proc.c: ditto.
-
-	* vm*.c: ditto.
-
-Mon Jun  4 11:40:28 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* marshal.c (r_object0): also load TYPE_USRMARSHAL, TYPE_DATA using
-	  compatible loader.
-
-Mon Jun  4 11:33:42 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* process.c (rb_run_exec_options_err): restore save_env() call for
-	  non-fork environments.
-
-	* process.c (rb_exec_err): restore environments after the failure of
-	  exec to fix [ruby-core:44093] [Bug #6249] on non-fork environments
-
-Mon Jun  4 10:42:04 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* io.c (pipe_open): follow up changes in r35889.
-
-	* process.c (proc_spawn_n): now uses char ** instead of VALUE *.
-
-	* process.c (rb_spawn_process): prog is now VALUE of String, not char *.
-
-Mon Jun  4 06:12:43 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* marshal.c (r_object0): remove old warning for _alloc.
-
-Mon Jun  4 04:24:06 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* marshal.c: experimental test aborted.
-	* complex.c: ditto.
-	* rational.c: ditto.
-	* include/ruby/intern.h: ditto.
-
-Mon Jun  4 00:45:18 2012  Tanaka Akira  <akr@fsij.org>
-
-	* process.c (rb_spawn_process): fix for Windows.  not tested.
-
-Mon Jun  4 00:11:51 2012  Tanaka Akira  <akr@fsij.org>
-
-	* process.c (rb_proc_exec_e): don't use ISSPACE().  \f, \r and \v
-	  are not word separator in Bourne shell.
-
-Sun Jun  3 23:47:30 2012  Tanaka Akira  <akr@fsij.org>
-
-	* include/ruby/intern.h (rb_exec_arg): remove argc and argv fields.
-	  add use_shell, argv_str and argv_buf fields.
-
-	* process.c (rb_proc_exec_e): don't split shell command line arguments
-	  here to avoid memory allocation in a child process.
-	  (rb_exec_fillarg): split shell command line arguments here.
-	  (proc_exec_v): takes argv_str argument instead of argv.
-	  (rb_proc_exec_ne): removed.
-	  (rb_proc_exec_n): removed.
-	  (rb_run_exec_options_err): don't initialize the removed fields.
-	  (rb_exec_err): don't initialize the removed fields.
-	  call proc_exec_v directly instead of rb_proc_exec_ne.
-	  (rb_spawn_process): use use_shell field.
-
-Sun Jun  3 21:53:00 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* GPL: update text of GPLv2. [ruby-core:44488] [Bug #6328]
-	  http://www.gnu.org/licenses/gpl-2.0.txt
-
-Sun Jun  3 21:22:52 2012  Tanaka Akira  <akr@fsij.org>
-
-	* process.c (rb_exec_getargs): remove rb_exec_arg argument.
-
-Sun Jun  3 21:14:26 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* marshal.c: calls directly rb_{Complex,Rational}_marshal_load().
-	  But now disabled. [experimental]
-	* complex.c: followed the above.
-	* rational.c: ditto.
-	* include/ruby/intern.h: ditto.
-
-Sun Jun  3 21:18:17 2012  Tanaka Akira  <akr@fsij.org>
-
-	* process.c (rb_check_argv): use rb_str_new_frozen instead of
-	  rb_str_new4.
-
-Sun Jun  3 20:10:52 2012  Tanaka Akira  <akr@fsij.org>
-
-	* process.c (rb_proc_exec_e): extended version of rb_proc_exec() to
-	  call execle().
-	  (rb_proc_exec): use rb_proc_exec_e().
-	  (rb_exec_err): use rb_proc_exec_e().
-
-Sun Jun  3 19:47:18 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* thread.c (vm_living_thread_num): suppress a warning.
-
-Sun Jun  3 17:23:52 2012  Tanaka Akira  <akr@fsij.org>
-
-	* use execve() to preserve environment variables when exec method is
-	  failed.  [ruby-core:44093] [ruby-trunk - Bug #6249]
-
-	* include/ruby/intern.h (rb_exec_arg): add envp_str and envp_buf field
-	  to store envp of execve().
-
-	* process.c (proc_exec_v): takes envp_str as an argument and use it
-	  for execve().
-	  (rb_proc_exec_ne): extended version of rb_proc_exec_n().
-	  (rb_proc_exec_n): use rb_proc_exec_ne().
-	  (rb_proc_exec): follow proc_exec_v() change.
-	  (fill_envp_buf_i): new function.
-	  (rb_exec_arg_fixup): set up envp_str and envp_buf.
-	  (save_env_i): removed.
-	  (save_env): removed.
-	  (rb_run_exec_options_err): don't modify environment variables.
-	  (rb_exec_err): use rb_proc_exec_ne().
-
-Sun Jun  3 16:33:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* marshal.c: revert r35879 "now marshal_{load|dump} are external."
-
-	* complex.c (nucomp_marshal__{dump,load}): should use rb_marshal_{dump,load}.
-
-	* rational.c (nurat_marshal__{dump,load}): ditto.
-
-Sun Jun  3 14:13:58 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_core.c: checks whether the object is frozen or not.
-
-Sun Jun  3 14:00:51 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* complex.c: wrote Complex#_dump and Complex::load.  But now
-	  disabled (due to compatibility) [experimental].
-
-	* rational.c: wrote Rational#_dump and Rational::load. ditto.
-
-Sun Jun  3 10:23:32 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* complex.c (nucomp_marshal_load): [ruby-core:45394]
-	* rational.c (nurat_marshal_load): ditto.
-
-Sun Jun  3 03:15:46 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* regparse.c (onig_number_of_names): suppress a warning.
-
-Sun Jun  3 01:36:52 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_backtrace.c: change names.
-	  (1) Class name: RubyVM::FrameInfo -> RubyVM::Backtrace::Location.
-	  (2) Method name: RubyVM::FrameInfo.caller ->
-	      Kernel.caller_locations.
-	  (3) Instance methods of
-	      RubyVM::FrameInfo (RubyVM::Backtrace::Location)
-	      (3-1) name -> label
-	      (3-2) basename -> base_label (basename is confusing with
-		    File.basename)
-	      (3-3) line_no -> lineno (We have already similar name
-		    File#lineno, commented by kou [ruby-dev:45686]).
-	      (3-4) filename -> path.
-	      (3-5) filepath -> absolute_path.
-	      (3-5) iseq -> removed (we will make other APIs to access iseq
-		    and other information of frame for debugging).
-
-	* test/ruby/test_backtrace.rb: apply above changes.
-	  And apply comment from kou [ruby-dev:45686].
-
-Sun Jun  3 00:49:11 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* common.mk: fix to build vm_backtrace.c only itself (vm_backtrace.c
-	  is no longer included from vm.c).  I hope this separation reduce
-	  compile time of vm.c.
-
-	* internal.h: ditto.
-
-	* vm.c, vm_core.h, vm_dump.c, vm_eval.c: ditto.
-
-	* vm_eval.c: some functions (callee, etc) moved to vm_backtrace.c.
-
-Sun Jun  3 00:20:53 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_backtrace.c: added.  Separate backtrace related functions to
-	  this file.
-
-	* vm.c, common.mk: ditto.
-
-Sat Jun  2 18:09:02 2012  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/ipaddr.rb: Inhibit zero-filled octets in an IPv4 address in
-	  all platforms. [ruby-dev:45671]
-
-	* lib/ipaddr.rb: Allow the x:x:x:x:x:x:d.d.d.d form not limited to
-	  IPv4 mapped/compatible addresses.  This change also makes it
-	  possible for the parser to understand IPv4 mapped and compatible
-	  IPv6 addresses in non-compressed form.
-
-	* lib/ipaddr.rb: Stop exposing IPSocket.valid*? methods which were
-	  only usable on non-IPv6-ready platforms.
-
-Sat Jun  2 16:59:00 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* string.c (rb_enc_cr_str_buf_cat): don't reset coderange as unknown.
-	  the condition 'ptr_a8 && str_cr != ENC_CODERANGE_7BIT' means not
-	  unknown, str is also ASCII-8BIT because str_encindex == ptr_encindex,
-	  and nont (str_cr == ENC_CODERANGE_UNKNOWN) and
-	  str_cr != ENC_CODERANGE_7BIT means str_cr is valid because ASCII-8BIT
-	  can't be broken. [ruby-dev:45688] [Bug #6509]
-
-Sat Jun  2 07:04:48 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/re.rdoc (Performance):  Replaced incorrect example of reducing
-	  backtracking through anchoring with reduced backtracking through a
-	  range.  [ruby-trunk - Bug #6525]
-
-Sat Jun  2 06:34:15 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* doc/re.rdoc (Performance):  Removed useless sample output from final
-	  performance example and switched from #match to #=~ for consistency.
-	  [ruby-trunk - Bug #6524]
-
-Fri Jun  1 09:30:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (class_or_module_required): extract check for class or
-	  module.
-
-Fri Jun  1 08:50:47 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* array.c:  Updated Array documentation formatting.  Patch by Zachary
-	  Scott.  [ruby-trunk - Feature #6517]
-
-Fri Jun  1 06:57:10 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* ext/dl/lib/dl/struct.rb (DL::CStructEntity#set_ctypes):  Refactored
-	  #set_ctypes using newer ruby features to simplify its implementation.
-	* test/dl/test_c_struct_entry.rb (class DL):  Test to verify
-	  refactoring.
-
-Fri Jun  1 06:40:25 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* object.c (Init_Object):  Restored Kernel documentation based on
-	  Pickaxe book documentation.  Patch by Zachary Scott.
-	  [ruby-trunk - Feature #6521]
-
-Fri Jun  1 06:29:42 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* object.c (rb_equal):  Let Object be a link in #=== documentation.
-	  Patch by Zachary Scott.  [ruby-trunk - Feature #6518]
-
-Thu May 31 09:27:06 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* ext/dl/lib/dl/struct.rb (DL::CStructEntity::size):  Refactored ::size
-	  to remove unused variables and simplify using newer ruby features.
-	* test/dl/test_c_struct_entry.rb:  Test to validate refactoring
-
-Thu May 31 08:40:34 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* ext/dl/lib/dl/struct.rb (DL::CUnionEntity#set_ctypes):  Refactored
-	  #set_types to reuse DL::CUnionEntity::size
-	* test/dl/test_c_union_entity.rb:  Added test
-
-Thu May 31 08:20:14 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* ext/dl/lib/dl/struct.rb (DL::CUnionEntity::size):  Fixed ::size to
-	  return the size of the union.
-	* test/dl/test_c_union_entity.rb:  Test for DL::CUnionEntity::size
-
-Thu May 31 07:45:43 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* ext/dl:  Added documentation.  Patch by Vincent Batts.
-	  [ruby-trunk - Bug #6496]
-
-Wed May 30 16:30:00 2012  Kenta Murata  <mrkn@cookpad.com>
-
-	* ext/bigdecimal/lib/bigdecimal/jacobian.rb,
-	  ext/bigdecimal/lib/bigdecimal/newton.rb:
-	  fix documentation comments.
-	  Patch by alperakgun from github.com/shyouhei/ruby/pull/8
-
-Wed May 30 16:20:00 2012  Kenta Murata  <mrkn@cookpad.com>
-
-	* ext/bigdecimal/lib/bigdecimal/jacobian.rb (Jacobian#dfdxi):
-	  fix jacobian to get stuck in an infinite loop when a solution is not
-	  found due to forget to increment nRetry counter.
-	  Patch by alperakgun from github.com/shyouhei/ruby/pull/8
-
-Wed May 30 10:58:31 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* time.c (utc_offset_arg): utc offset can be precision in seconds.
-	  e.g. old Europe/Lisbon (c.f. [ruby-dev:40066])
-
-Wed May 30 06:20:29 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* error.c (exc_set_backtrace):  Updated documentation to indicate
-	  set_backtrace allows a string as well as an array of strings.
-	  [ruby-trunk - Bug #6501]
-
-Tue May 29 17:28:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* strftime.c (rb_strftime_with_timespec): support GNU extension triple
-	  colons modifier.  [EXPERIMENTAL]
-
-	* strftime.c (rb_strftime_with_timespec): check conversion with locale
-	  modifier.
-
-	* strftime.c (rb_strftime_with_timespec): colons are valid only for
-	  'z' and must come just before it.
-
-Mon May 28 16:56:55 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/test/unit.rb (Test::Unit::Runner#_prepare_run): StatusLineOutput
-	  needs job_status to be :replace.
-
-Mon May 28 13:35:33 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (do-install-*): fix dependencies.  based on the patch by
-	  nagachika at [ruby-dev:45683].  [Bug #6506]
-
-Mon May 28 12:03:04 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* gc.c (obj_free): doesn't free a method table if it doesn't
-	  exist. [ruby-dev:44436]
-	* test/ruby/test_gc.rb (class TestGc): added the test case for
-	  this issue.
-
-Sun May 27 23:37:48 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/bm_vm1_lvar_init.rb: added.
-	  This benchmark measures a initialize time of non-used variable.
-
-	* benchmark/bm_vm1_lvar_set.rb: added.
-	  This benchmark measures a local variables initialization time.
-
-	* benchmark/bm_vm2_bigarray.rb: added.
-	  This benchmark mesures a big array literal creation time.
-
-	* benchmark/bm_vm2_bighash.rb: added.
-	  This benchmark mesures a big hash literal creation time.
-
-	* benchmark/bm*: change notation "i=0" to "i = 0".
-
-Sun May 27 13:33:26 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/driver.rb: fix to continue benchmarks when
-	  an error is occurred.
-
-Sun May 27 11:27:50 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/test/unit.rb (Test::Unit::Runner#_prepare_run): fix operator
-	  precedence, so that platform and TERM should be counted.
-
-Sun May 27 10:02:33 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_strftime.c: allows %Ok and %Ol.
-
-Sun May 27 09:29:20 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_core.c: modified doc.
-
-Sat May 26 19:04:34 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_core.c: added description.
-
-Sat May 26 18:14:57 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_strftime.c: reduced the code.
-
-Sat May 26 18:08:59 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* time.c: modified doc.
-	* ext/date/date_core.c: ditto.
-
-Sat May 26 17:05:45 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c (backtrace_*): change type of lev and n from size_t to int.
-	  Also set type of rb_backtrace_t#backtrace_size to int.
-	  A patch from nobu.
+	* vm_args.c: ditto.
 
 	* vm_eval.c: ditto.
 
-Sat May 26 16:26:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (realpath_rec): UNC prefix does not end with path separator,
-	  so new separator is needed after it.
-
-Sat May 26 15:29:22 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* test/ruby/test_backtrace.rb (test_caller_lev):
-	  decrease recursion size.
-
-Sat May 26 13:50:48 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* NEWS: add Kernel#caller's second argument.
-
-Sat May 26 13:40:29 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c (RubyVM::FrameInfo): add a class to access each frame
-	  information.  You don't need to parse strings from caller().
-	  FrameInfo has the following methods:
-	    FrameInfo#name: method name, class name, etc with decorations.
-	    FrameInfo#basename: name without decorations.
-	    FrameInfo#line_no: line number.
-	    FrameInfo#filename: file name.
-	    FrameInfo#filepath: full filepath.
-	    FrameInfo#iseq: iseq if it is iseq frame (defined by ruby script)
-	    FrameInfo#to_s: return caller() method style string.
-	  RubyVM::FrameInfo.caller(n, lev) returns array of FrameInfo objects.
-	  The name "RubyVM::FrameInfo.caller" is long and ambiguous (it is
-	  confusing with Kernel::caller() method), we need to change the name
-	  before Ruby 2.0 release. Good names or comments are welcome.
-
-	* test/ruby/test_backtrace.rb: add a test for above change.
-
-Sat May 26 12:18:09 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c (frame_info_to_str): add `break'.
-
-	* vm.c (backtrace_object): remove lev and n parameter.
-	  backtrace_object always returns all of backtrace information.
-
-	* vm.c (rb_backtrace_to_str_ary): fix to use backtrace_object().
-	  This change improve performance of caller(lev, n).
-
-	* benchmark/bm_vm3_backtrace.rb: added to check above improvement.
-	  FYI: measurement on my laptop, 1.9.3p229 needs 5.125 sec,
-	  and current trunk only needs 0.299sec.
-
-Sat May 26 11:05:09 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c (rb_frame_info_t): keep previous ISEQ frame info for CFUNC
-	  frame info.  And fix to cache a calculated line_no of ISEQ frame
-	  info.
-
-Sat May 26 09:54:53 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
-
-	* ext/openssl/ossl_ssl.c: Allow disabling client-side renegotiation.
-	* test/openssl/test_ssl.rb: Simple tests for this.
-
-	  Client-side renegotiation is still considered problematic, even
-	  when used in the context of secure renegotiation (RI, RFC 5746).
-	  The changes allow users to either completely disable client
-	  renegotiation on the server, or to specify a maximum number of
-	  handshakes allowed in total. The number of total handshakes is
-	  counted in a callback set as SSL_set_info_callback. If the
-	  maximum number of handshakes is exceeded an error will be raised
-	  We do not support renegotiation in the OpenSSL extension, therefore
-	  this feature can only be tested externally.
-	  The feature is opt-in, the default setting will be to allow
-	  unlimited client renegotiation, as was the case before.
-
-Fri May 25 23:38:58 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
-
-	* test/openssl/test_ssl.rb: Clarify the intention of errors to be
-	  expected. Two errors are possible when connection is refused due
-	  to a protocol version that was explicitly disallowed,
-	  OpenSSL::SSL::SSLError or Errno::ECONNRESET, depending on the
-	  OpenSSL version in use.
-
-Fri May 25 22:19:40 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
-
-	* ext/openssl/ossl_ssl.c: Revert r35583
-	* test/openssl/test_ssl.rb: Handle ECONNRESET in code instead to avoid
-	  the test failing in Ruby CI [1]
-
-	[1] http://u64.rubyci.org/~chkbuild/ruby-trunk/log/20120507T190102Z.log.html.gz#test-all
-
-Fri May 25 19:51:36 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_eval.c (rb_f_caller): caller() method accepts second optional
-	  argument `n' which specify how many frames should return.
-	  For example, `caller(0, 1)' returns only one frame information
-	  which calls caller() method.  If there are less than n frame
-	  information, then all frame information are returned.  If n is 0,
-	  then always return [].
-	  This fix is part of [ruby-dev:42345] [Ruby 1.9-Feature#3917].
-	  However, performance and features are not enough.
-	  RDoc is also not available.
-
-	* test/ruby/test_backtrace.rb: add a test for above.
-
-Fri May 25 17:05:07 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c (oldbt_init, vm_backtrace_str_ary): arg->data should
-	  be initialized before calling `backtrace_each()'.
-
-Fri May 25 16:11:27 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* trunk/ext/-test-/printf/printf.c: change function names because of
-	  conflict with msvcrt.  fixed build error of mswin.
-
-Fri May 25 10:52:52 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c: refactoring backtrace related functions.
-	  (1) unify similar functions (rb_backtrace_each() and
-	      backtrace_object()).  backtrace_each() is a unified function.
-	      variation:
-	      a) backtrace_object(): create backtrace object.
-	      b) vm_backtrace_str_ary(): create bt as an array of string.
-	      c) vm_backtrace_print(): print backtrace to specified file.
-	      d) rb_backtrace_print_as_bugreport(): print backtrace on
-	                                            bugreport style.
-	  (2) remove rb_backtrace_each().  Use backtrace_each() instead.
-	  (3) change the type of lev parameter to size_t.
-	      a) lev == 0 means current frame (exception, etc use it).
-	      b) lev == 1 means upper frame (caller(0) use it).
-
-	* vm_core.h, vm_dump.c, vm_eval.c: ditto.
-
-	* vm.c (backtrace_object(), vm_backtrace_str_ary()): fix to return a
-	  correct size of caller(lev) array.
-	  Let n be a "caller(0).size" then ln as caller(lev).size should be
-	  (n - lev).  However, the previous implementation returns a wrong
-	  size array (ln > n - lev).  [ruby-dev:45673]
-
-	* test/ruby/test_backtrace.rb: add tests for backtrace.
-
-Fri May 25 08:51:39 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* enum.c (enum_count):  Enumerable#count no longer uses #size when
-	  counting elements.  Patch by Nobuhiro IMAI.  [ruby-trunk - Bug #6473]
-
-Fri May 25 01:15:39 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* sprintf.c (ruby__sfvextra): [EXPERIMENTAL] use inspect instead of
-	  to_s if plus flag is given.
-
-	* vsnprintf.c (BSD_vfprintf): pass sign flag.
-
-Fri May 25 00:37:22 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/rubygems/test_gem_indexer.rb (setup, teardown): save @tempdir
-	  to remove it properly.  [Bug #5348]
-
-Thu May 24 23:36:51 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vsnprintf.c (BSD_vfprintf): [EXPERIMENTAL] object representation in
-	  rb_enc_vsprintf(). [Feature #5896]
-
-Thu May 24 15:33:01 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_method.c (rb_method_defined_by): removed.
-	  nobu pointed out that rb_method_basic_definition_p() is enough
-	  for last commit.
-
-	* error.c, eval_error.c: change for above.
-
-Thu May 24 14:30:13 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c: add RubyVM::Backtrace object (btobj).
-	  Backtrace information contains an array consists of location
-	  information for each frames by string.
-	  RubyVM::Backtrace object is lightweight backtrace information,
-	  which contains complete information to generate traditional style
-	  backtrace (an array of strings) with faster generation.
-	  If someone accesses to backtrace information via
-	  Exception#backtrace, then convert a RubyVM::Backtrace object to
-	  traditional style backtrace.
-	  This change causes incompatibility on marshal dumped binary
-	  of Exception.  If you have any trouble on it, please tell us
-	  before Ruby 2.0 release.
-	  Note that RubyVM::Backtrace object should not expose Ruby level.
-
-	* error.c, eval.c, vm_eval.c: ditto.
-
-	* internal.h: ditto.
-
-	* eval_error.c: fix to skip "set_backtrace" method invocation in
-	  creating an exception object if it call a normal set_backtrace
-	  method (defined by core).
-
-	* test/ruby/test_settracefunc.rb: fix for above change.
-
-	* vm_method.c (rb_method_defined_by): added.  This function
-	  checks that the given object responds with the given method
-	  by the given cfunc.
-
-	* benchmark/bm_vm2_raise1.rb, benchmark/bm_vm2_raise2.rb:
-	  add to measure exception creation speed. raise1 create
-	  exception objects from shallow stack frame.  raise2 create
-	  exception objects from deep stack frame.
-
-Thu May 24 12:07:46 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (io_strip_bom): check EOF.  [Bug #6487][ruby-core:45203]
-
-Wed May 23 22:06:14 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/net/http/header.rb (Net::HTTPHeader#range): fix broken parser of
-	  HTTP Range request. Old one can't parse invalid specs and multiple
-	  specs correctly.
-
-Wed May 23 10:18:54 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (finish_overlapped_socket, overlapped_socket_io):
-	  replace ECONNABORTED to EPIPE in send, sendto and sendmsg to improve
-	  BSD socket compatibility.  this change removes a failure on the test
-	  of net/ftp.
-
-Wed May 23 05:35:58 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/net/http.rb:  Broke up Net::HTTP into individual files.
-	  [ruby-trunk - Feature #6435]
-	* lib/net/http/backward.rb:  ditto.
-	* lib/net/http/response.rb:  ditto.
-	* lib/net/http/exceptions.rb:  ditto.
-	* lib/net/http/responses.rb:  ditto.
-	* lib/net/http/generic_request.rb:  ditto.
-	* lib/net/http/header.rb:  ditto.
-	* lib/net/http/request.rb:  ditto.
-	* lib/net/http/proxy_delta.rb:  ditto.
-	* lib/net/http/requests.rb:  ditto.
-
-Wed May 23 05:15:11 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* class.c (rb_mod_init_copy):  Clear the cached inspect string of a
-	  dup'd anonymous module or class.  [ruby-trunk - Bug #6454]
-	* test/ruby/test_module.rb (class TestModule):  ditto
-
-Tue May 22 16:49:15 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: add a data type rb_location_t to store iseq location
-	  information.
-	  rb_location_t#filename, filepath, name and line_no was moved from
-	  rb_iseq_t.  rb_location_t#basename is a new field which is
-	  similar to `name' field without any decoration.
-	  `name' field contains some decoration such as `block in foo'.
-	  `basename' only contains `foo'.
-	  rb_iseq_t contains memory object of rb_location_t.
-
-	* iseq.c: setup rb_location_t for each rb_iseq_t memory objects.
-
-	* compile.c, proc.c, vm.c, vm_dump.c, vm_eval.c, vm_insnhelper.c,
-	  vm_method.c: support about it.
-
-Tue May 22 00:45:05 2012  Yusuke Endoh  <mame@tsg.ne.jp>
-
-	* struct.c (rb_struct_members): Refactoring.  As Struct#members had
-	  returned an array of String, the old code was needed to convert
-	  Symbols to Strings.  But it is almost unnecessary because the
-	  method now returns an array of Symbols.  A patch by Masaki
-	  Matsushita <glass.saga at gmail dot com>  [Feature #6218]
-	  [ruby-dev:45451]
-
-Mon May 21 19:20:25 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/net/ftp.rb (Net::FTP#retrbinary): close only if conn is not nil
-	  because transfercmd may fail and return nil.
-
-	* lib/net/ftp.rb (Net::FTP#retrlines): ditto.
-
-Mon May 21 15:10:28 2012  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/syslog/syslog.c: Classify constants and macros into several
-	  sub-modules. (Syslog::Priority, Syslog::Level, Syslog::Option
-	  and Syslog::Macros)
-
-	* ext/syslog/syslog.c (mSyslog_inspect): Use rb_sprintf().
-
-	* ext/syslog/syslog.c (mSyslog_inspect): Make sure self is a
-	  module before calling rb_class2name().
-
-Mon May 21 12:44:11 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* .travis.yml (install): It seems tcl/tk is skipped in Travis
-	  CI. Trying to fix the situation.
-
-Mon May 21 12:11:25 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* enc/depend (ENCOBJS): add dependencies.
-
-	* enc/make_encmake.rb (target_encodings): extract dependencies.
-
-Mon May 21 11:26:17 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/net/ftp.rb (Net::FTP#transfercmd): rescue shutdown.
-
-Sun May 20 23:00:11 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb (extmake): reopen $stdout to NULL, since setting
-	  $stdout cannot affect child processes.
-
-Sun May 20 21:36:39 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* enc/shift_jis.c (code_to_mbclen): return
-	  ONIGERR_INVALID_CODE_POINT_VALUE if the code is invalid.
-
-	* string.c (tr_next): increment character until the code
-	  is a valid character. [ruby-dev:45652] [Bug #6450]
-
-Sun May 20 12:25:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* Makefile.in (LIBRUBY_SO): link EXTSOLIBS too.
-
-	* ext/extmk.rb (mf.macro): use EXTSOLIBS instead of SOLIBS to get rid
-	  of discard libraries needed by default.  [Bug #6462]
-
-Sat May 19 19:04:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb (command_output): ENCOBJS is needed for all linked
-	  ruby, if --disable-shared and --with-static-linked-ext.
-
-	* ext/extmk.rb (command_output): dmyext is needed as DLDOBJS if no
-	  static linked extensions.
-
-	* Makefile.in, common.mk (PROGRAM): no extension libraries.
-
-	* common.mk (build-ext): pass macros for libruby.so.
-
-	* ext/extmk.rb (command_output): link extension libraries and encoding
-	  libraries into libruby.so, not ruby executable.
-
-	* ext/extmk.rb (command_output): fold long macro lines.
-
-	* Makefile.in (LIBEXT): add macro.
-
-	* configure.in (ENCOBJS, EXTOBJS): use LIBEXT, not hardcoded suffix.
-
-	* Makefile.in (LIBRUBY_A): fix typo.  re-applying r35242.
-
-Sat May 19 04:46:53 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* ext/openssl/extconf.rb: Use Logging::message instead of message.
-	* ext/zlib/extconf.rb: ditto.
-
-Fri May 18 18:13:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (MakeMakefile#configuration): keep space at end of
-	  OUTFLAG and COUTFLAG.  [ruby-dev:45650]
-
-Fri May 18 17:39:42 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* thread_pthread.c (rb_thread_create_timer_thread): Added error
-	  check when failing fcntl(). [Bug #6147] [ruby-dev:45364]
-
-Fri May 18 17:41:00 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb (extmake): link archives only, skip script only
-	  extension libraries.
-
-Fri May 18 17:25:33 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* cont.c: bump up fiber machine stack size when running on 64bit
-	  arch. [Bug #6344] [ruby-dev:45554]
-
-Fri May 18 15:20:56 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/uri/generic.rb (URI::Generic.build): duplicate args before adding
-	  new items. (don't change arguments)
-
-	* lib/uri/generic.rb (URI::Generic.build): use URI::Generic::COMPONENT
-	  if this method is called from URI::Generic.
-
-	* lib/uri/generic.rb (URI::Generic.build2): escape only if the item is
-	  a String.
-
-	* lib/uri/generic.rb (URI::Generic.build2): use DEFAULT_PARSER because
-	  it doesn't have parser method. [Bug #6420]
-
-Fri May 18 15:54:07 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* ext/zlib/extconf.rb: Use an exception instead of bare puts.
-
-Fri May 18 15:53:05 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* ext/psych/extconf.rb: Use an exception instead of bare abort.
-
-Fri May 18 15:51:32 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* ext/fiddle/extconf.rb: Use an exception instead of bare abort.
-
-Fri May 18 15:49:35 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* ext/readline/extconf.rb: Use an exception instead of bare exit.
-
-Fri May 18 15:38:11 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* ext/ripper/extconf.rb: Use an exception instead of bare
-	  Logging.message.
-
-Fri May 18 15:23:06 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* ext/openssl/extconf.rb: Clarify a message when hit Apple
-	  OpenSSL issue.
-
-Fri May 18 15:14:32 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* ext/extmk.rb: Show a message when extconf.rb raised an exception.
-	* ext/openssl/extconf.rb: Use exception raising instead of message
-	  and/or abort. We want to display error message to console _and_
-	  logging into mkmf.log.
-
-Fri May 18 06:14:07 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* ext/syslog/lib/syslog/logger.rb:  Added Syslog::Logger which was
-	  ported from the SyslogLogger gem.  [ruby-trunk - Feature #5096]
-	* NEWS:  ditto.
-	* test/syslog/test_syslog_logger.rb:  ditto.
-
-Fri May 18 01:28:21 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/parser.c (transcode_string): fix encoding index names.
-	  Thanks markizko for reporting.
-
-Thu May 17 23:03:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in: fix function name to be checked, to initialize
-	  rb_thread_cond_t properly.
-
-	* thread_pthread.c (native_cond_initialize, native_cond_destroy):
-	  fix macro name.
-
-Thu May 17 12:53:07 2012  Yuki Yugui Sonoda  <yugui@google.com>
-
-	* thread.c, thread_pthread.c: Moved pthread-specific preprocessor
-	  hacks to thread_pthread.c
-
-Thu May 17 12:18:47 2012  Yuki Yugui Sonoda  <yugui@google.com>
-
-	* io.c: Fix a mistake on merging the patch in the previous commit.
-
-Thu May 17 11:33:07 2012  Yuki Yugui Sonoda  <yugui@google.com>
-
-	Imports Ruby's port to NativeClient (a.k.a NaCl).
-	Patch by Google Inc. [ruby-core:45073].
-
-	* configure.in (RUBY_NACL): New M4 func to configure variables for
-	  NaCl.
-	  (RUBY_NACL_CHECK_PEPPER_TYPES): New M4 func to check the old names
-	  of Pepper interface types.
-	  (BTESTRUBY): New variable to specify which ruby should be run on
-	  "make btest". NaCl can run the built binary by sel_ldr, but it need
-	  rbconfig.rb. So this variable is distinguished from $MINIRUBY.
-
-	* thread_pthread.c: Disabled some features on NaCl.
-
-	* io.c: ditto.
-
-	* process.c: ditto.
-
-	* signal.c: ditto.
-
-	* file.c: ditto.
-
-	* missing/flock.c: ditto.
-
-	* nacl/pepper_main.c: An example implementation of Pepper application
-	  that embeds Ruby.
-
-	* nacl/example.html: An example of web page that uses the Pepper
-	  application.
-
-	* nacl/nacl-config.rb: Detects variants of NaCl SDK.
-
-	* nacl/GNUmakefile.in: Makefile template for NaCl specific build
-	  process.
-
-	* nacl/package.rb: script for packaging a NaCl-Ruby embedding
-	  application.
-
-	* nacl/reate_nmf.rb: Wrapper script of create_nmf.py
-
-	* dln.c (dln_load): Added a hack to call on NaCl.
-
-	* util.c (ruby_getcwd): Path to the current directory is not available
-	  on NaCl.
-
-Thu May 17 10:54:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/tk/extconf.rb: add -l options to $libs not $LDFLAGS,
-	  to be passed to EXTLIBS in exts.mk.
-
-	* enc/encinit.c.erb: use %-lines to adjust indent in the generated file.
-
-	* lib/mkmf.rb (MakeMakefile#have_framework): combine -framework option
-	  and its argument with an equal sign not to be separated in merge_libs.
-
-	* ext/tk/extconf.rb: ditto.
-
-	* ext/extmk.rb: EXTLDFLAGS also needs to be passed.
-
-Wed May 16 15:44:22 2012  Yuki Yugui Sonoda  <yugui@google.com>
-
-	* configure.in: Fix an unbalanced quote.
-
-Wed May 16 15:43:10 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/extmk.rb (exts.mk): use double quotes instead of single quotes
-	  for commandline because it's not recognized as quotes on Windows.
-
-Wed May 16 15:15:55 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (LD): enclose with single quotes but not double quotes
-	  not to expand command substitution.
-
-Wed May 16 14:19:51 2012  Yuki Yugui Sonoda  <yugui@google.com>
-
-	Supports static linking of extensions and encodings again.
-	Fixes --with-static-linked-ext.
-
-	Patch by Google Inc. [ruby-core:45073].
-
-	* Makefile.in (ENCOBJS, EXTOBJS): New variables to specify static
-	  linked libraries. Also reintroduces extinit.o, introduces encinit.o
-	  introduces encinit.o
-
-	* common.mk: Builds static libraries rather than shared objects if
-	  specified.
-
-	* configure.in (LD): new substitution.
-
-	* enc/depend: Supports static linked libraries
-	  (libencs, libenc, libtrans): New target.
-
-	* enc/encinit.c.erb: new template to generate the initialization of
-	  statically linked encodings.
-
-	* enc/make_encmake.rb (--module): new flag to specify whether static
-	  or dynamic.
-
-	* transcode_data.h (TRANS_INIT): New macro to get rid of the name
-	  collision of encoding initializers and transcoder initializers.
-
-	* ext/extmk.rb: Fixes the behavior on $extstatic is true.
-
-	* lib/mkmf.rb (clean-static): new target to clean up static linked
-	  libraries.
-
-	* ruby.c (process_options): New initializes statically linked
-	  encodings here.
-
-Wed May 16 14:30:43 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* io.c: fixed a merge mistake of r33878, reported by nobu via IRC.
-
-Wed May 16 06:59:41 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_strftime.c: should also be aware of flags on
-	  complex specifier.
-
-Wed May 16 05:11:29 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/visitors/to_ruby.rb: fix a bug with string
-	  subclass dumping and loading.
-
-	* test/psych/test_array.rb: pertinent tests
-
-	* test/psych/test_string.rb: ditto
-
-Wed May 16 01:31:21 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/visitors/to_ruby.rb: convert omap tagged maps to
-	  Psych::Omap objects rather than hashes. [Bug #6425]
-
-	* test/psych/test_omap.rb: pertinent test.
-
-Wed May 16 01:15:45 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/visitors/yaml_tree.rb: keep a reference to
-	  custom coders so that GC does not impact dumped yaml reference ids.
-
-Tue May 15 23:59:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/test/unit.rb (Test::Unit::Options#setup_options): add --color option.
-
-	* lib/test/unit.rb (Test::Unit::Runner#_prepare_run): defer color code
-	  initialization to regard --color option.
-
-Mon May 14 16:28:36 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (f_arglist): should reset lexical states after empty
-	  argument list with no parenthesis as well as parenthesized list,
-	  so that reserved name method definition work.  [ruby-dev:45626]
-	  [Bug #6403]
-
-Mon May 14 00:14:24 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* enumerator.c (lazy_take_func, lazy_take): multiple calls of
-	  force/to_a method to Enumerator::Lazy#take should return same
-	  results. [ruby-dev:45634] [Bug #6428]
-
-	* test/ruby/test_lazy_enumerator.rb (test_take_recycle): add test for
-	  above.
-
-Sun May 13 23:38:31 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* test/ruby/test_io.rb (test_flush_in_finalizer1): don't use IO.for_fd
-	  to close IO objects. it create IO object with already closed fd, and
-	  cause occasional Errno::EBADF in following tests. [ruby-core:45020]
-	  [Bug #6228]
-
-Sun May 13 23:32:16 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* test/ruby/test_io.rb (TestIO): revert r35631. it broke the intent of
-	  test_flush_in_finalizer1.  [ruby-core:43951] [Bug #6228]
-
-Sun May 13 22:46:36 2012  Tanaka Akira  <akr@fsij.org>
-
-	* ext/etc/etc.c (passwd_ensure): move endpwent() call from
-	  passwd_iterate to close /etc/passwd on exception.
-	  (group_ensure): move endgrent() call from group_iterate to close
-	  /etc/group on exception.
-
-Sun May 13 18:10:43 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_strftime.c: removed unused code and changed the style.
-
-Sun May 13 17:37:56 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_strftime.c: refactored.
-
-Sun May 13 06:40:12 2012  Luis Lavena  <luislavena@gmail.com>
-
-	* test/ruby/test_io.rb (class TestIO):  Disable GC during IO tests to
-	  avoid file descriptors being GC'ed. Suggestion by Tomoyuki Chikanaga
-	  [ruby-core:43951][Bug #6228]
-
-Sat May 12 07:00:16 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* ext/sdbm/init.c:  Added documentation.  Patch by Justin Collins,
-	  cleanup by Zachary Scott.  [ruby-trunk - #6410]
-
-Sat May 12 06:02:03 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/fileutils.rb (cp_r):  Fixed cp_r example.  Patch by TJ Koblentz
-	  from pull request #114.  [ruby-trunk - Bug #6411]
-
-Sat May 12 05:23:06 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* thread.c (rb_threadptr_execute_interrupts_common):
-	  test_signal_requiring of test/ruby/test_signal.rb fail if the sub
-	  process is killed on waiting IO in lex_io_gets in rb_load_file in
-	  rb_load_internal in require.
-	  This is because
-	  (1) the process receive the killing signal in
-	      rb_thread_io_blocking_region in rb_read_internal in lex_io_gets.
-	  (2) set th->errinfo as INT2FIX(TAG_FATAL) at
-	      rb_threadptr_execute_interrupts_common.
-	  (3) escape rb_load_file in rb_load_internal and jump to EXEC_TAG()
-	      without set loaded as TRUE.
-	  (4) call first rb_exc_raise(GET_THREAD()->errinfo); because loaded
-	      is FALSE as above. this errinfo should be an exception object
-	      but this is INT2FIX(TAG_FATAL).
-	  Don't call first rb_exc_raise if GET_THREAD()->errinfo is Fixnum.
-
-Fri May 11 14:23:11 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (primary): begin/end block should be isolated from outside.
-	  [ruby-dev:45631][Bug #6419]
-
-Fri May 11 14:09:47 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/bigdecimal/bigdecimal.c (PUSH): to prevent VALUE from GC,
-	  must not cast it to unsigned long, which may be shorter than
-	  VALUE, and the result can be mere garbage.
-
-Fri May 11 09:51:07 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/test/unit.rb (Test::Unit::Runner#failed): no unnecessary
-	  newlines if no reports to be displayed.
-
-Thu May 10 10:55:35 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/minitest/test_minitest_mock.rb: Correct requiring path to
-	  metametameta.rb.
-
-	* test/minitest/test_minitest_unit.rb: Correct requiring path to
-	  metametameta.rb.
-
-Thu May 10 10:18:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (lex_state_name): returns name for lex_state_e, for debug
-	  use.
-
-Wed May  9 16:36:01 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (MakeMakefile#pkg_config): check if libs resulted from
-	  pkg-config works actually.
-
-Wed May  9 16:01:38 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/imap.rb (decode_utf7, encode_utf7): refactored by
-	  Nobuyoshi Nakada, to use String#encode.
-
-Wed May  9 13:26:25 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/rubygems/test_gem_remote_fetcher.rb: skip OpenSSL dependent
-	  tests if not available.
-
-Wed May  9 08:09:38 2012  Ryan Davis  <ryand-ruby@zenspider.com>
-
-	* lib/minitest/*: Imported minitest 3.0.0 (r7435)
-	* test/minitest/*: ditto
-	* test/rubygems/*: Imported fixes for buggy use of assert_match
-	  and deprecated assert_block
-	UNBUNCH YOUR PANTIES. THE TESTS DO NOT RUN CLEAN ON OSX.
-
-Wed May  9 06:28:59 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* re.c (rb_reg_equal):  Removed incorrect example for Regexp#== with
-	  "n" option.  [ruby-talk - Bug #6415]
-
-Wed May  9 06:23:33 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_core.c: reverted.
-
-Wed May  9 04:31:26 2012  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/rinda/ring.rb (lookup_ring_any): fix Rinda::RingFinger.primary
-	  hungs forever. [ruby-talk:395364]
-
-Tue May  8 21:09:00 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* include/ruby/win32.h (FD_SET): change function to macro.
-	  To avoid buffer overflow when smaller FD_SETSIZE is used in ext
-	  libraries.
-
-	* win32/win32.c (rb_w32_fdset): this function is not used anymore.
-	  But we leave this for compatibility.
-
-	* win32/win32.c (rb_w32_select_with_thread): fix SEGV when smaller
-	  FD_SETSIZE is used in ext libraries. Dereference of fd_set pointer
-	  causes SEGV.
-
-	* test/-ext-/win32/test_fd_setsize.rb(TestFdSetSize): add tests for
-	  above.
-	* ext/-test-/win32/fd_setsize/depend: ditto.
-	* ext/-test-/win32/fd_setsize/extconf.rb: ditto.
-	* ext/-test-/win32/fd_setsize/fd_setsize.c: ditto.
-
-	  [ruby-core:44588] [Bug #6352]
-
-Tue May  8 20:44:46 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* io.c (io_unread): fix IO#pos with mode 'r' bug on Windows.
-	  If the end of reading buffer is CR, io_unread() needs to unread one
-	  more byte.
-	  [ruby-core:44874] [Bug #6401]
-
-	* test/ruby/test_io_m17n.rb (TestIO_M17N#test_pos_with_buffer_end_cr):
-	  add a test for above.
-
-Tue May  8 13:38:17 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
-
-	* ext/date/date_core.c: improving introduction in Date/DateTime
-	  documentation. patched by Daniel Kaufman via Github.
-		https://github.com/ruby/ruby/pull/110
-
-Tue May  8 13:36:02 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (POSTLINK): default to : command to get rid of flag
-	  only command, since BSD make does not work with it.
-
-Tue May  8 13:35:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/test/unit.rb (MiniTest#run_test): remove exact trace and get rid
-	  of IndexError, which could caused by modified $@ sometimes.
-
-Tue May  8 11:21:27 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/minitest/metametameta.rb (MetaMetaMetaTestCase#assert_report):
-	  support drive letter on Windows.  yes, the original code is metameta.
-
-Tue May  8 08:54:48 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/abbrev.rb:  Fixed typo in abbrev pattern documentation.  Based on
-	  patch by Mark Rushakoff.  [ruby-trunk - #6346]
-
-Tue May  8 07:44:18 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/openssl/ossl_ssl.c (ossl_start_ssl): remove useless rb_sys_fail
-	  before ossl_raise. this cause a test failure on Linux.
-	 http://u64.rubyci.org/~chkbuild/ruby-trunk/log/20120507T190102Z.log.html.gz
-
-Tue May  8 05:35:18 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* object.c (Init_Object):  Added reference to variable.c where
-	  public_constant and private_constant documentation lives.  [#6381]
-
-Tue May  8 04:47:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/test/unit.rb (Test::Unit::Runner#output): prefer local output to
-	  get rid of unexpected side effect in test/minitest/metametameta.rb.
-
-	* lib/test/unit.rb (MiniTest#run_test): show the running test in $0.
-
-	* lib/test/unit.rb (Test::Unit::StatusLineOutput): new class to output
-	  in status line.
-
-	* test/testunit/test_hideskip.rb (TestHideSkip#test_hideskip):
-	  MiniTest#puke now reports Skipped messages only if verbose mode.
-
-	* test/testunit/test_sorting.rb (TestTestUnitSorting#test_sorting):
-	  ditto.
-
-	* lib/test/unit.rb (Test::Unit::Runner#puke): modify only result and
-	  drop useless reports, not override entirely.
-
-	* bootstraptest/runner.rb (exec_test, show_progress): show rotators
-	  and pass/fail counts.
-
-	* sample/test.rb (PROGRESS): refine output.
-
-Tue May  8 02:34:26 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/minitest/unit.rb (assert_match): refix of r35563.
-	  r35563 breaks the intention of the original change.
-	 https://github.com/seattlerb/minitest/commit/68858105b2eb11c85105ffac5f32b662c59397f3
-	* lib/minitest/unit.rb (refute_match): ditto.
-
-Mon May  7 21:19:17 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/json: Merge JSON 1.7.1.
-	 https://github.com/flori/json/commit/e5b9a9465c1159fae533bca320d950b772bcb4ac
-
-Mon May  7 22:54:22 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
-
-	* ext/openssl/ossl_ssl.c: add support for option flags
-	  OpenSSL::SSL::OP_NO_TLSv1_1
-	  OpenSSL::SSL::OP_NO_TLSv1_2
-	  to allow blocking specific TLS versions. Thanks to Justin Guyett for
-	  pointing this out to me.
-	* test/openssl/test_ssl.rb: add tests to assert correct behavior when
-	  blocking certain versions of TLS/SSL both on server and client side.
-	  Also refactored tests to reduce boilerplate code a little.
-	* test/openssl/utils.rb: rescue Errno::ECONNRESET for tests where
-	  client rejects the connection because a forbidden protocol version
-	  was used.
-
-Mon May  7 20:14:15 2012  Tanaka Akira  <akr@fsij.org>
-
-	* lib/securerandom.rb (random_bytes): call to_int method for the
-	  argument at first.
-
-Mon May  7 17:54:12 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/minitest/unit.rb (assert_match): replace matcher only if both
-	  matcher and obj are String. fix r35541. [Bug #6405]
-	  DON'T COMMIT IF YOU CAN'T RUN TEST.
-	  FIX AS SOON AS POSSIBLE YOU BREAK TESTS.
-	  patched by ayumin.
-	  https://github.com/seattlerb/minitest/pull/124
-
-	* lib/minitest/unit.rb (refute_match): ditto.
-
-Mon May  7 13:41:00 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* Makefile.in (PROGRAM), configure.in (POSTLINK): sign built program
-	  using RUBY_CODESIGN identity.
-
-Mon May  7 13:03:55 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/imap.rb (body_type_attachment): parse body type
-	  "ATTACHMENT". [ruby-core:44849] [Bug #6397]
-
-Mon May  7 10:49:36 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/bigdecimal/bigdecimal.c (Init_bigdecimal): define IDs before
-	  they are used. [ruby-core:44900] [Bug #6406]
-
-Mon May  7 10:27:56 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/digest/rmd160/rmd160.c (RMD160_Update): fix for huge data.
-
-Mon May  7 10:23:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/fileutils/fileasserts.rb: use assert_equal, assert_match, and so on.
-
-	* test/ruby/enc/test_utf16.rb, test/ruby/enc/test_utf32.rb,
-	  test/ruby/test_io_m17n.rb (assert_str_equal): ditto.
-
-	* test/rubygems/test_gem_remote_fetcher.rb
-	  (assert_data_from_{server,proxy}): ditto.
-
-	* test/test_pstore.rb (test_thread_safe): ditto.
-
-Mon May  7 10:16:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/rubygems/test_gem_installer.rb (TestGemInstaller#test_dir): fix
-	  argument order.  expected value must come first.
-
-Mon May  7 09:14:11 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
-
-	* ext/openssl/ossl_ssl.c: support TLSv1.1 & TLSv1.2. Add
-	  SSLContext#version to inspect the version that was negotiated for
-	  a given connection.
-	* ext/openssl/extconf.rb: detect TLS 1.1 & 1.2 support.
-	* test/openssl/test_ssl.rb: add tests for TLS 1.1 & 1.2 given they
-	  are supported by the native OpenSSL being used.
-
-Sun May  6 21:34:29 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* io.c (io_encoding_set): suppress warnings. [ruby-dev:45627]
-	  this tmp1 is not required after r35538.
-
-	* addr2line.c: suppress warnings.
-
-Sun May  6 18:39:39 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (iseq_compile_each): remove unused variable `size'.
-
-Sun May  6 14:50:03 2012  Tanaka Akira  <akr@fsij.org>
-
-	* lib/securerandom.rb: show actual read length in an error message.
-
-Sat May  5 06:43:10 2012  Ryan Davis  <ryand-ruby@zenspider.com>
-
-	* lib/minitest/*: Imported minitest 2.12.1 (r7323)
-	* test/minitest/*: ditto
-
-Sat May  5 01:47:33 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* test/zlib/test_zlib.rb (test_inflate): add a test for Zlib.inflate.
-	  patched by headius (Charles Nutter). [ruby-core:44859] [Bug #6398]
-
-	* test/zlib/test_zlib.rb (test_deflate): add a test for Zlib.deflate.
-
-Sat May  5 00:53:55 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* io.c (parse_mode_enc): remove warnings 'Ignoring internal encoding'.
-	  [ruby-core:44455] [Bug #6324]
-
-	* io.c (io_encoding_set): ditto.
-
-Fri May  4 07:19:02 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/rdoc/parser.rb (RDoc.binary?): fix wrong regexp.
-	  [ruby-core:44798] [Bug #6393]
-
-Fri May  4 01:33:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/rdoc/parser.rb (RDoc.alias_extension): a real file is irrelevant
-	  to aliasing.  [ruby-core:44796][Bug #6392]
-
-	* lib/rdoc/parser.rb (RDoc.zip?): non-existent file will not be a zip
-	  file.
-
-	* lib/rdoc/parser.rb (RDoc.can_parse_by_name): accept aliased
-	  extension file names.
-
-	* lib/rdoc/parser.rb (RDoc.binary?): binary read data may have
-	  incomplete multibyte sequence.  [ruby-core:44798][Bug #6393]
-
-Wed May  2 23:55:51 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/test/unit.rb (Test::Unit::RequireFiles#non_options): expand
-	  real path to get rid of loading same files via symlinks.
-
-Wed May  2 23:26:04 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
-
-	* cont.c (rb_fiber_m_transfer): improve sample code in Fiber#transfer
-	  documentation. emphasize the difference between transfer and resume.
-
-Wed May  2 23:21:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parser_yylex): allow spaces between lambda arrow and
-	  parenthesis.  [ruby-dev:45605][Feature #6390]
-
-Wed May  2 19:06:30 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
-
-	* cont.c (rb_fiber_m_transfer): Improved Fiber documentation.
-	  patched by Anuj Dutta. [ruby-core:44540][Bug #6343]
-
-Wed May  2 13:06:37 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* README, README.ja: reformatted using rdoc markup.  based on the
-	  patches by zzak (Zachary Scott) in [Feature #6388].
-
-	* README, README.ja: updated the author's mail address.
-
-Wed May  2 09:46:09 2012  Kouji Takao  <kouji@takao7.net>
-
-	* ext/readline/readline.c (Readline.special_prefixes=)
-	  (Readline.special_prefixes): new function. An original patch was
-	  created by nagachika. [Feature #5784]
-
-Tue May  1 22:18:45 2012  Kouji Takao  <kouji@takao7.net>
-
-	* ext/readline/readline.c (Readline.pre_input_hook)
-	  (Readline.insert_text, Readline.redisplay): new function. An
-	  original patch was created by nagachika. [Feature #5785]
-
-Tue May  1 15:46:48 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* common.mk: "$(Q)-..." doesn't work on nmake.
-
-Tue May  1 15:32:10 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* common.mk: replace '@' prefix to '$(Q)' to control build
-	  process outputs.
-
-Tue May  1 14:17:59 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/openssl/deprecation.rb (OpenSSL.check_func): check if header is
-	  available for macro compatibility.
-
-Tue May  1 10:53:54 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/ruby/test_settracefunc.rb: ignore traces from another threads
-	  because Kernel.set_trace_func affects other threads.
-
-Tue May  1 06:04:14 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/digest/sha2/sha2.c (REVERSE32): explicitly cast since unsigned
-	  long may be larger than sha2_word32.
-
-	* ext/digest/sha2/sha2.c (SHA{256,512,384}_{Final,End}): should clear
-	  whole content, not pointer size.
-
-	* ext/digest/*/extconf.rb: use pkg_config to use same library with
-	  openssl.  [ruby-core:44755][Bug #6379]
-
-	* ext/openssl/deprecation.rb: extract check for broken Apple OpenSSL.
-
-Tue May  1 05:02:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (optflags): disable unsafe optimizations.
-	  [ruby-core:44679][Bug #6370]
-
-Mon Apr 30 23:36:49 2012  Tanaka Akira  <akr@fsij.org>
-
-	* lib/fileutils.rb (copy_metadata): use File.lchown and File.lchmod to
-	  update meta data of symlinks.
-
-Mon Apr 30 23:05:53 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
-
-	* test/ruby/test_continuation.rb (tracing_with_set_trace_func): don't
-	  call Continuation from other threads. [ruby-dev:45596] [Bug #6382]
-
-Mon Apr 30 20:10:04 2012  Tanaka Akira  <akr@fsij.org>
-
-	* ext/zlib/extconf.rb: detect z_crc_t type which will be defined
-	  since zlib-1.2.7.
-
-	* ext/zlib/zlib.c (rb_zlib_crc_table): use z_crc_t if available.
-
-Mon Apr 30 09:02:15 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
-
-	* ext/openssl/lib/openssl/ssl.rb: add hostname to "hostname does not
-	  match server cert." error. patched by Wes Morgan via Github.
-	  https://github.com/ruby/ruby/pull/122
-
-Mon Apr 30 04:43:53 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/json/yaml_events.rb: implicit styles should not
-	  be changeable for JSON events.
-
-Sun Apr 29 06:12:02 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (assoc, parser_yylex): add syntax to splat keyword hash.
-	  [ruby-core:44591][Feature #6353]
-
-	* compile.c (compile_array_): generate keyword splat insns.
-
-	* vm.c (m_core_hash_merge_kwd): merge keyword hash into intermediate
-	  hash.  leftward argument is prior currently.
-
-Fri Apr 27 12:34:23 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/dl/cfunc.c (rb_dlcfunc_call): should convert a Bignum value to
-	  unsigned long long on Win64.
-	  [ruby-core:44636][Bug #6364] reported by raylinn@gmail.com (ray linn)
-
-Fri Apr 27 10:58:17 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/readline/test_readline.rb (setup): avoid affected by user's
-	  inputrc file.  [ruby-dev:45584][Bug #6357]
-
-Fri Apr 27 01:45:05 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* thread.c (rb_threadptr_execute_interrupts_common):
-	  handle timer_interrupt only on the first loop for the case to avoid
-	  the infinite loop like following case:
-	  * there is 2 Ruby threads (3 pthreads)
-	  (1) main thread is waiting at gvl_yield:112 (native_cond_wait)
-	  (2) sub thread works
-	  (3) sub thread waits at gvl_yield:133 (native_mutex_unlock)
-	  (4) main thread works
-	  (5) main thread goes to gvl_acquire_common
-	  (6) main thread call rb_wakeup_timer_thread
-	  (7) timer thread set timer interrupt to the main thread
-	  (8) main thread works
-	  (9) main thread waits at gvl_acquire_common:64 (native_cond_wait)
-	  (10) sub tread works
-	  (11) set sub thread as the current thread
-	  (12) run Ruby thread
-	  (13) ...100ms
-	  (14) sub thread goes to rb_threadptr_execute_interrupts_common
-	  (15) sub thread call rb_thread_schedule_limits
-	  (16) sub thread call gvl_release_common
-	  (17) sub threads waits at gvl_yield:121 (native_cond_wait)
-	  (18) main threads works
-	  (19) main thread back to gvl_yield
-	  (20) set main thread as the current thread
-	  (21) main thread call gvl_yield
-	  (22) main thread waits at gvl_yield:112 (native_cond_wait)
-	  As described above, the main thread can't escape from
-	  rb_threadptr_execute_interrupts_common.
-	  See extended memo: http://bugs.ruby-lang.org/projects/ruby-trunk/wiki/R35480_ExtendedMemo
-
-Fri Apr 27 07:15:07 2012  Tanaka Akira  <akr@fsij.org>
-
-	* ext/socket/socket.c (sock_s_pack_sockaddr_un): support the longest
-	  path in sockaddr_un, really.
-	  reported by nagachika.
-	 http://d.hatena.ne.jp/nagachika/20120426/ruby_trunk_changes_35474_35476
-
-Thu Apr 26 12:28:06 2012  Tanaka Akira  <akr@fsij.org>
-
-	* ext/socket/raddrinfo.c (init_unix_addrinfo): support the longest
-	  path in sockaddr_un.
-	  (inspect_sockaddr): ditto.
-	  (addrinfo_mdump): ditto.
-	  (addrinfo_mload): ditto.
-	  (rsock_unixpath_str): new function.
-	  (rsock_unixpath): removed.
-	  (rsock_unixaddr): use rsock_unixpath_str.
-
-	* ext/socket/socket.c (sock_s_pack_sockaddr_un): support the longest
-	  path in sockaddr_un.
-	  (sock_s_unpack_sockaddr_un): ditto.
-	  (sock_s_gethostbyaddr): unused variable removed.
-
-	* ext/socket/unixsocket.c (rsock_init_unixsock): support the longest
-	  path in sockaddr_un.
-
-	* ext/socket/rubysocket.h (rsock_unixpath_str): declared.
-	  (rsock_unixpath): removed.
-
-	* test/socket/test_unix.rb: comment out test_nul because abstract unix
-	  sockets may contain NULs.
-
-Thu Apr 26 01:32:33 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
-
-	* test/optparse/test_summary.rb (test_summary_containing_space): add
-	  test for r35467. OptionParser#to_a shouldn't split banner by spaces.
-
-Wed Apr 25 23:02:46 2012  Tanaka Akira  <akr@fsij.org>
-
-	* ext/socket/raddrinfo.c (init_unix_addrinfo): refine error message
-	  format.
-	  (addrinfo_mload): show more information on "too long AF_UNIX path"
-	  error.
-	  (addrinfo_unix_path): ditto for "too short AF_UNIX address" and
-	  "too long AF_UNIX address" error.
-
-Wed Apr 25 05:46:12 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb (OptionParser#to_a): split for each lines.
-	  [ruby-dev:45568][Bug #6348]
-
-Tue Apr 24 21:57:53 2012  Tanaka Akira  <akr@fsij.org>
-
-	* ext/socket/raddrinfo.c (init_unix_addrinfo): show actual path length
-	  when it is too long for Unix socket.
-
-	* ext/socket/unixsocket.c (rsock_init_unixsock): ditto.
-
-	* ext/socket/socket.c (sock_s_pack_sockaddr_un): ditto.
-
-Tue Apr 24 21:43:58 2012  Yusuke Endoh  <mame@tsg.ne.jp>
-
-	* lib/net/smtp.rb (check_continue): raise an error with an explanatory
-	  message.  [ruby-core:35854] [Feature #4598]
-
-Tue Apr 24 21:11:31 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/optparse.rb (OptionParser#to_a): should split by end-of-line,
-	  and MUST TEST IT, MUST RUN THE TEST, MUST VERIFY BEFORE BACKPORT.
-	  [ruby-dev:45568][Bug #6348]
-
-Tue Apr 24 19:59:31 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* enc/euc_jp.c: added EUC-JP-2004 and its alias EUC-JISX0213.
-	  [ruby-dev:45571] [Feature #6349]
-	  Requested by Kyouhei Yanagita <yanagi@shakenbu.org>.
-
-	* enc/trans/japanese_euc.trans: ditto.
-
-	* enc/trans/JIS/JISX0213-[12]%UCS@{BMP,SIP}.src: JIS X 0213:2004 ->
-	  Unicode mapping table from NetBSD.
-
-	* enc/trans/JIS/UCS@{BMP,SIP}%JISX0213-[12].src: Unicode -> JIS X
-	  0213:2004 mapping table from NetBSD.
-
-	* tool/transcode-tblgen.rb: added SIP support.
-
-	* test/ruby/test_transcode.rb: tests of above changes.
-
-Tue Apr 24 18:12:13 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c: fix to output warning when the same literals
-	  are available as a condition of same case clause.
-	  And remove information ('#n') because we can find duplicated
-	  condition with explicit line numbers.
-	  [ruby-core:38343] [Ruby 1.9 - Bug #5068]
-
-	* test/ruby/test_syntax.rb: add a test for above.
-
-Tue Apr 24 17:03:51 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (waitpid): need to check the return value of
-	  FindChildSlotByHandle() before passing poll_child_status().
-	  this fixed a SEGV in test-all.  reported by ko1 via IRC.
-
-Tue Apr 24 16:04:39 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parser_yylex): EXPR_BEG by keywords is a start point of
-	  commands.  [ruby-dev:45563][Bug #6347]
-
-	* parse.y (superclass): ditto for superclass.
-
-	* parse.y (parser_parse_string, parser_here_document): ditto for
-	  string interpolation.
-
-	* parse.y (parser_yylex): ditto for singleton class.
-
-Tue Apr 24 15:51:41 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb (OptionParser#to_a): should split by end-of-line
-	  [ruby-dev:45568][Bug #6348]
-
-	* lib/optparse.rb (OptionParser#to_a): String#to_a is no longer
-	  defined.  [ruby-dev:45568][Bug #6348]
-
-Tue Apr 24 12:46:50 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* hash.c, object.c, struct.c, lib/ostruct.rb: add to_h methods.
-	  [Feature #6276]
-
-Tue Apr 24 10:54:34 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/drb/drbtest.rb ({DRbCore,DRbAry}#teardown): cannot pass SIGTERM
-	  to another process on Windows, so use SIGINT instead.
-
-Tue Apr 24 00:25:39 2012  Yusuke Endoh  <mame@tsg.ne.jp>
-
-	* thread.c (rb_check_deadlock): refine an error message of deadlock
-	  detection.  [ruby-core:44336] [Bug #6288]
-
-Tue Apr 24 00:14:42 2012  Yusuke Endoh  <mame@tsg.ne.jp>
-
-	* parse.y (primary): remove wrong "fixpos" that caused incorrect
-	  source_location of blocks.  [ruby-core:42232] [Bug #5930]
-
-	* test/ruby/test_proc.rb: add a test for above.
-
-Mon Apr 23 22:56:08 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/iconv: deprecated.  [Feature #6322]
-
-Mon Apr 23 22:07:00 2012  Tanaka Akira  <akr@fsij.org>
-
-	* test/socket/test_unix.rb (bound_unix_socket): make temporary
-	  filename shorter for less possibility of Unix socket path over
-	  107 bytes when TMPDIR has long path.
-
-Mon Apr 23 20:35:49 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (szInternalCmds, internal_match, internal_cmd_match):
-	  get rid of a segmentation fault with GCC 4.7.0.
-	  reported by raylinn@gmail.com (ray linn) at [ruby-core:44505]
-	  [Bug #6333], and patched by mame.
-
-	* test/ruby/test_system.rb (TestSystem#test_system): test for it.
-
-Mon Apr 23 20:11:02 2012  Tanaka Akira  <akr@fsij.org>
-
-	* lib/drb/ssl.rb: generate 1024 bits RSA key instead of 512 bits.
-	  OpenSSL 1.0.1 rejects 512 bits RSA key for TLS1.2 with SHA512.
-	 http://rt.openssl.org/Ticket/Display.html?id=2769&user=guest&pass=guest
-	  reported by Bohuslav Kabrda.
-	  [ruby-core:43844] [ruby-trunk - Bug #6221]
-
-Mon Apr 23 19:54:33 2012  Tanaka Akira  <akr@fsij.org>
-
-	* test/drb/drbtest.rb: rescue Errno::ESRCH for Process.kill.
-	  reported by NARUSE, Yui.  [ruby-dev:45551]
-
-Mon Apr 23 14:16:45 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* .gdbinit (rb_ps_vm): follow st_table's packing change.
-
-Mon Apr 23 10:43:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in: disable rubygems not to load rbconfig.rb before
-	  fake.rb.  [ruby-core:44492][Bug #6329]
-
-Sun Apr 22 20:26:06 2012  Tanaka Akira  <akr@fsij.org>
-
-	* lib/drb/extservm.rb (DRb::ExtServManager): don't use /bin/sh to
-	  invoke service subprocess.  mark detach threads for clean up.
-
-	* test/drb/drbtest.rb: clean up the service subprocess in teardown.
-
-	* test/drb/test_drb.rb: set @service_name for teardown.
-
-	* test/drb/test_drbunix.rb: ditto.
-
-	* test/drb/test_drbssl.rb: ditto.
-
-	[ruby-dev:45547]
-
-Sun Apr 22 07:51:29 2012  Tanaka Akira  <akr@fsij.org>
-
-	* lib/drb/ssl.rb: close accepted TCP socket if SSL accept is failed.
-	  [ruby-dev:45541]
-
-Sat Apr 21 14:36:49 2012  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* test/rinda/test_rinda.rb: fix sticks on some tests problem
-	  [Bug #6272]
-
-Fri Apr 20 12:24:04 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/ssl_certs/AddTrustExternalCARoot.pem:  Removed to avoid
-	  conflict with ca-bundle.pem
-	* lib/rubygems/ssl_certs/VerisignClass3PublicPrimaryCertificationAuthority-G2.pem:
-	  ditto.
-	* lib/rubygems/ssl_certs/Entrust_net-Secure-Server-Certification-Authority.pem:
-	  ditto.
-
-Fri Apr 20 08:07:06 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems:  Update to RubyGems 1.8.23 which contains security
-	  fixes:
-
-	  RubyGems now disallows redirection from HTTPS to HTTP.
-
-	  RubyGems now verifies SSL connections.
-
-	  See https://github.com/rubygems/rubygems/blob/1.8/History.txt for
-	  changes since 1.8.22.
-	* test/rubygems:  ditto.
-
-Thu Apr 19 16:33:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* strftime.c (rb_strftime_with_timespec): fix carry-up bug and
-	  overwrite '+' with '-' if negative offset less than a hour.
-	  [ruby-core:44447][Bug #6323]
-
-Thu Apr 19 09:39:57 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/-test-/win32/dln/extconf.rb: need import library for ordinal
-	  entry even on mingw.  [ruby-core:44441][Bug #6320]
-
-Thu Apr 19 09:35:15 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* random.c (random_init):  Clarify that the default seed is
-	  Random.new_seed, not zero.  Based on patch by Roger Pack.
-	  [ruby-trunk - Bug #6313]
-	* random.c (rb_f_srand):  ditto.
-
-Thu Apr 19 08:59:02 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* ext/curses/curses.c (window_nodelay):  Fixed call-seq of nodelay to
-	  include the '='.
-
-	  Improved description window.nodelay=.
-
-Thu Apr 19 08:47:54 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* io.c (io_readpartial):  Document the output buffer parameter is
-	  overwritten with the read contents even when non-empty.
-	  Patch by yu nobuoka.  [ruby-trunk - Bug #6285]
-	* io.c (io_read_nonblock):  ditto.
-	* io.c (io_read):  ditto.
-	* io.c (rb_io_sysread):  ditto.
-	* io.c (argf_read):  ditto.
-	* io.c (argf_readpartial):  ditto.
-	* ext/stringio/stringio.c (strio_read):  ditto.
-	* test/ruby/test_argf.rb (class TestArgf):  Add test for existing
-	  behavior of read outbuf.
-	* test/ruby/test_io.rb (class TestIO):  ditto.
-	* test/stringio/test_stringio.rb (class TestStringIO):  ditto.
-
-Wed Apr 18 22:58:55 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (DOT, DOXYGEN): use AC_CHECK_PROGS instead of
-	  AC_CHECK_PROG which needs the third argument.  [ruby-core:44433]
-	  [Bug #6316]
-
-	* configure.in (PKG_CONFIG): fix condition to skip older version
-	  of pkg-config.  continue in backticks does not affect outside.
-
-Wed Apr 18 13:59:40 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/file.c (INVALID_FILE_ATTRIBUTES): define for old SDK.
-
-Wed Apr 18 10:22:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* strftime.c (rb_strftime_with_timespec): add an interim digit for
-	  the timezone offset which is less than an hour.
-
-Wed Apr 18 09:58:29 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems/version.rb:  Fixed init_with warning by calling into
-	  yaml_initialize (for syck) from psych's init_with
-
-Wed Apr 18 09:03:43 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rubygems:  Update to RubyGems 1.8.22 plus r33517 and r35337 which
-	  were ported to the rubygems git repository.
-
-	  See https://github.com/rubygems/rubygems/blob/1.8/History.txt for
-	  changes since 1.8.11.
-
-	* test/rubygems:  ditto.
-
-Tue Apr 17 22:18:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* strftime.c (rb_strftime_with_timespec): fix padding of time zone
-	  offset.  [ruby-dev:43287][Bug #4458]
-
-Tue Apr 17 13:11:14 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dln.c (rb_w32_check_imported): skip ordinal entries.  based on a
-	  patch by phasis68 (Heesob Park) at [ruby-core:44381].
-	  [ruby-core:44371][Bug #6303]
-
-Mon Apr 16 18:22:14 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* spec/default.mspec: expand relative path for ruby_exe which uses
-	  them with Dir.chdir; it breaks relative paths, for example
-	  core/kernel/exec_spec.rb.
-
-Mon Apr 16 16:22:40 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (gmtime_r, localtime_r): POSIX compliant reentrant
-	  versions.
-
-	* configure.in (RUBY_MSVCRT_VERSION): define on mingw too.
-
-	* win32/Makefile.sub (config.h): prefix RT_VER with RUBY and make
-	  more descriptive to get rid of potential conflict.
-
-Mon Apr 16 15:19:39 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (NO_RUBY_VENDOR_LIB): fix missing comma.
-
-Mon Apr 16 12:17:12 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/matrix.rb (hermitian?): Bug fix, patch by George Koehler
-	  [Bug #6290] [rubyspec:4b9573d7613]
-
-Mon Apr 16 09:42:50 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/rubygems/remote_fetcher.rb (Gem::RemoteFetcher#download): should
-	  use File.identical? to check the identity of the files.
-	  this fixed an error of a test on Windows.
-
-Sat Apr 14 12:55:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (UNREACHABLE): gcc 4.4 eliminates unreachable code
-	  if -O3 is given.
-
-	* win32/win32.c (child_result): dropped colon.
-
-Sat Apr 14 10:45:18 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/webrick/server.rb (WEBrick::GenericServer#start):
-	  partially revert r35315.
-
-	* test/webrick/test_server.rb (test_start_exception):
-	  received signal is delivered to the main thread, so it is needed to
-	  emulate it. patched by Eric Hodel. [ruby-core:44348] [Feature #6236]
-
-Sat Apr 14 09:35:45 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* variable.c (trace_ev):  Removed "not reached" comment as this line is
-	  reached.
-	* variable.c (rb_obj_remove_instance_variable):  Replaced "not reached"
-	  comment with the UNREACHABLE macro.
-	* variable.c (rb_mod_const_missing):  ditto.
-	* variable.c (rb_mod_remove_cvar):  ditto.
-	* enum.c (first_i):  ditto.
-	* string.c (rb_str_aref):  ditto.
-	* string.c (str_byte_aref):  ditto.
-	* string.c (rb_to_id):  ditto.
-	* io.c (rb_io_fmode_modestr):  ditto.
-	* io.c (rb_io_oflags_modestr):  ditto.
-	* pack.c (num2i32):  ditto.
-	* vm_eval.c (rb_method_missing):  ditto.
-	* vm_eval.c (rb_f_throw):  ditto.
-	* dir.c (dir_read):  ditto.
-	* win32/win32.c (child_result):  ditto.
-	* struct.c (rb_struct_getmember):  ditto.
-	* struct.c (rb_struct_set):  ditto.
-	* struct.c (rb_struct_aref_id):  ditto.
-	* eval.c (rb_f_raise):  ditto.
-	* process.c (rb_f_exit_bang):  ditto.
-	* process.c (rb_f_exit):  ditto.
-	* process.c (rb_f_abort):  ditto.
-	* ext/-test-/iter/break.c (iter_break_value):  ditto.
-	* ext/pty/pty.c (pty_check):  ditto.
-	* ext/openssl/ossl_pkey.c (ossl_pkey_new):  ditto.
-	* ext/readline/readline.c (rb_remove_history):  ditto.
-	* ext/stringio/stringio.c (strio_unimpl):  ditto.
-	* numeric.c (num_sadded):  ditto.
-	* numeric.c (num_init_copy):  ditto.
-	* numeric.c (rb_num2ll):  ditto.
-	* numeric.c (rb_num2ull):  ditto.
-	* vm_insnhelper.c (call_cfunc):  ditto.
-	* ruby.c (opt_W_getter):  ditto.
-	* bignum.c (rb_big_coerce):  ditto.
-	* file.c (rb_f_test):  ditto.
-
-Sat Apr 14 08:38:20 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* encoding.c (rb_enc_codepoint_len):  Use UNREACHABLE to avoid "control
-	  reaches end of non-void function" warnings.  [ruby-trunk - Bug #6066]
-	* re.c (name_to_backref_number):  ditto.
-	* object.c (rb_Float):  ditto.
-	* io.c (io_readpartial):  ditto.
-	* io.c (io_read_nonblock):  ditto.
-	* pack.c (rb_uv_to_utf8):  ditto.
-	* proc.c (rb_method_entry_arity):  ditto.
-	* vm_method.c (rb_f_notimplement):  ditto.
-	* struct.c (rb_struct_aset_id):  ditto.
-	* class.c (rb_scan_args):  ditto.
-	* process.c (rlimit_resource_type):  ditto.
-	* process.c (rlimit_resource_value):  ditto.
-	* process.c (p_uid_switch):  ditto.
-	* process.c (p_gid_switch):  ditto.
-	* ext/digest/digest.c (rb_digest_instance_update):  ditto.
-	* ext/digest/digest.c (rb_digest_instance_finish):  ditto.
-	* ext/digest/digest.c (rb_digest_instance_reset):  ditto.
-	* ext/digest/digest.c (rb_digest_instance_block_length):  ditto.
-	* ext/bigdecimal/bigdecimal.c (BigDecimalCmp):  ditto.
-	* ext/dl/handle.c (rb_dlhandle_close):  ditto.
-	* ext/tk/tcltklib.c (pending_exception_check0):  ditto.
-	* ext/tk/tcltklib.c (pending_exception_check1):  ditto.
-	* ext/tk/tcltklib.c (ip_cancel_eval_core):  ditto.
-	* ext/tk/tcltklib.c (lib_get_reltype_name):  ditto.
-	* ext/tk/tcltklib.c (create_dummy_encoding_for_tk_core):  ditto.
-	* ext/tk/tkutil/tkutil.c (tk_hash_kv):  ditto.
-	* ext/openssl/ossl_ssl.c (ossl_ssl_session_reused):  ditto.
-	* ext/openssl/ossl_pkey_ec.c (ossl_ec_key_dsa_verify_asn1):  ditto.
-	* ext/openssl/ossl_pkey_ec.c (ossl_ec_point_is_at_infinit):  ditto.
-	* ext/openssl/ossl_pkey_ec.c (ossl_ec_point_is_on_curve):  ditto.
-	* ext/fiddle/conversions.c (generic_to_value):  ditto.
-	* ext/socket/raddrinfo.c (rsock_io_socket_addrinfo):  ditto.
-	* ext/socket/socket.c (sock_s_getnameinfo):  ditto.
-	* ext/ripper/eventids2.c (ripper_token2eventid):  ditto.
-	* cont.c (return_fiber):  ditto.
-	* dmydln.c (dln_load):  ditto.
-	* vm_insnhelper.c (vm_search_normal_superclass):  ditto.
-	* bignum.c (big_fdiv):  ditto.
-	* marshal.c (r_symlink):  ditto.
-	* marshal.c (r_symbol):  ditto.
-
-Fri Apr 13 17:12:09 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* hash.c (inspect_i): keep string's coderange.
-
-Fri Apr 13 15:26:51 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (rb_hash_aset, rb_hash_update, rb_hash_update_by): use
-	  st_update() to reduce evaluation of hash values.
-
-Fri Apr 13 15:17:36 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/webrick/server.rb (WEBrick::GenericServer#stop): fix r35303;
-	  this method is to deny new connections, not shutdown yet.
-
-	* lib/webrick/server.rb (WEBrick::GenericServer#start):
-	  re-raise exception only when the exception is Interrupt (^C).
-
-Thu Apr 12 19:51:45 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_core.c: added some notes.
-
-Wed Apr 11 17:16:49 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (compile_array, compile_array_):
-	  Divide big array (or hash) literals into several blocks and
-	  concatenate them.  There was a problem that a big array (hash)
-	  literal causes SystemStackError exception (stack overflow)
-	  because VM push all contents of the literal onto VM stack to
-	  make an array (or hash).  To solve this issue, we make several
-	  arrays (hashes) and concatenate them to make a big array (hash)
-	  object.  [ruby-dev:37701] [Bug #982]
-
-	* compile.c (iseq_compile_each, setup_args): use modified
-	  compile_array.
-
-	* vm.c (m_core_hash_from_ary, m_core_hash_merge_ary,
-	  m_core_hash_merge_ptr): added for above change.
-
-	* id.c (Init_id), parse.y: add core method ids.
-
-	* bootstraptest/test_literal.rb: add simple tests.
-
-	* bootstraptest/test_eval.rb: remove rescue clause to catch
-	  SystemStackError exception.
-
-	* test/ruby/test_literal.rb: add tests to check no stack overflow.
-
-Thu Apr 12 07:10:37 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/uri/generic.rb (module URI):  URI now downcases the scheme to
-	  follow RFC 2396 section 3.1.  [ruby-trunk - Feature #4551]
-	* test/uri/test_generic.rb (class URI):  Test for above
-
-Thu Apr 12 06:15:44 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/net/protocol.rb (module Net):  Added ReadTimeout to match
-	  OpenTimeout.  ReadTimeout is now raised by rbuf_fill instead of
-	  Timeout::Error to help users distinguish what type of timeout
-	  occurred.  [ruby-trunk - Feature #6088]
-	* lib/net/pop.rb (module Net):  Updated documentation for ReadTimeout
-	  and OpenTimeout.
-	* lib/net/http.rb (module Net):  ditto
-	* lib/net/smtp.rb (module Net):  ditto
-	* lib/net/telnet.rb (module Net):  Net::ReadTimeout is now raised in
-	  waitfor to match Net::Protocol.
-	* test/net/http/test_http.rb:  Updated Timeout::Error expectation to
-	  Net::ReadTimeout.
-	* test/net/ftp/test_ftp.rb:  ditto
-
-Thu Apr 12 05:27:01 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/webrick/server.rb (module WEBrick::GenericServer):  A server
-	  will now continue only when a StandardError subclass is raised.  For
-	  other exception types the error will be logged at the fatal level and
-	  the server will safely stop.  Based on a patch by Alex Young.
-	  [ruby-trunk - Feature #6236]
-	* test/webrick/test_server.rb:  Test for new exception handling
-	  behavior.  Join the server thread instead of busy-waiting for it to
-	  shut down to remove race conditions.
-
-Thu Apr 12 03:50:44 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/test/unit.rb (Test::Unit:Runner::Worker#_run_suites):
-	  call GC.start before running the test suites.
-
-Wed Apr 11 22:31:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (rb_check_id_cstr): new function to check if ID is
-	  registered with NUL-terminated C string.
-
-	* sprintf.c (rb_str_format): avoid inadvertent symbol creation.
-
-Wed Apr 11 20:28:36 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* io.c (rb_io_eof): use eof() instead of io_fillbuf(). It's because
-	  io_unread() doesn't work properly when reading CRLF with read(length)
-	  and mode 'r'.
-	  [ruby-core:44189][Bug #6271]
-
-	* test/ruby/test_io_m17n.rb (TestIO_M17N#test_read_crlf_and_eof):
-	  test for above.
-
-Wed Apr 11 07:38:33 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* ext/digest/sha2/lib/sha2.rb (Digest#block_length):  Fixed method name
-	  in documentation examples.  Patch by naleski via
-	  https://github.com/ruby/ruby/pull/115
-
-Wed Apr 11 07:33:13 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* pack.c (pack_pack):  Warn when an invalid character is found in the
-	  format string when $VERBOSE is true.  [ruby-trunk - Feature #5219]
-	* pack.c (pack_unpack):  ditto
-	* test/ruby/test_pack.rb (class TestPack):  Test for warnings on
-	  invalid format characters.
-
-Wed Apr 11 06:11:10 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* string.c (rb_str_tr):  Documented use of \ to escape characters.
-	  [ruby-trunk - Bug #6161]
-	* string.c (rb_str_count):  ditto
-
-Wed Apr 11 05:14:51 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/abbrev.rb:  Clarified that Abbrev.abbrev returns a Hash instead
-	  of an Array.  Patch by Andrei Bocan.  [ruby-trunk - Bug #6107]
-
-Wed Apr 11 03:02:24 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
-
-	* ext/ripper/lib/ripper/sexp.rb: fix spelling. patched by
-	  Jonathan Hinkle via https://github.com/ruby/ruby/pull/116
-
-Tue Apr 10 19:07:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (rb_enc_raise): new function to raise an exception with
-	  the message in the given encoding.  patched by now (Nikolai
-	  Weibull) at [ruby-core:41160].  [Feature #5650]
-
-Tue Apr 10 18:19:32 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/net/http.rb (Net::HTTP#send_request_with_body_stream):
-	  use IO.copy_stream for requests using body_stream.
-	  patched by Eric Wong. [ruby-core:40898] [Feature #5605]
-
-Tue Apr 10 16:53:21 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread_pthread.c: add prototype declarations for older Mac OS X.
-	  [ruby-core:43376][Bug #6170]
-
-Tue Apr 10 15:35:21 2012  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (iseq_set_sequence): show a hint if there are duplicated
-	  "when" clauses.  [ruby-core:41502] [ruby-trunk - Feature #5716]
-
-Tue Apr 10 09:57:00 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* string.c (rb_str_split_m):  Documented behavior of split on the empty
-	  string.  [ruby-trunk - Feature #3575]
-
-Tue Apr 10 09:48:31 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* ext/zlib/zlib.c (rb_deflate_s_deflate):  Fixed ruby example replacing
-	  NO_FLUSH with FINISH.  [ruby-trunk - Bug #6273]
-
-Mon Apr  9 23:10:26 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (isUNCRoot, winnt_stat): support long UNC.
-	  [ruby-core:30623][Feature #3399]
-
-Mon Apr  9 15:16:01 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (string_content, parser_yylex): count brace nesting to
-	  dispatch embexpr_end.  [ruby-core:43775][Bug #6211]
-
-Mon Apr  9 13:06:58 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* hash.c (rb_hash_set_default_proc): Accept nil, patch by Run Paint
-	  [Feature #4234]
-
-	* test/ruby/test_hash.rb: test for above.
-
-Mon Apr  9 08:01:15 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* ext/date/date_strftime.c: gets the value with range() consistently.
-	* ext/date/date_strftime.c (range): now just replaces the given item.
-
-Mon Apr  9 06:58:01 2012  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* complex.c (nucomp_expt): [ruby-core:44170].
-
-Mon Apr  9 02:52:03 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* complex.c (nucomp_expt): the result of f_complex_new2 may be a fixnum
-	  with mathn. [ruby-core:44170] [Bug #6267]
-
-Sun Apr  8 22:46:01 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/json/generator/generator.c (generate_json_bignum):
-	  add RB_GC_GUARD.
-	 http://fb.rubyci.org/~chkbuild/ruby-trunk/log/20120407T210301Z.diff.html.gz
-
-Sun Apr  8 07:26:40 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/webrick/utils.rb (WEBrick::Utils::TimeoutHandler): get keys
-	  and fetch values from it to prevent @timeout_info's error
-	  "can't add a new key into hash during iteration".
-
-Sun Apr  8 06:51:57 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* io.c (io_unread): cast as long the value for extra_max.
-	  [ruby-core:44137] [Bug #6257]
-
-Sun Apr  8 06:46:48 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/webrick/httpresponse.rb (WEBrick::HTTPResponse#send_body_io):
-	  use readpartial to get data even if the response is streaming data and
-	  each data is smaller than @buffer_size.
-	  patched by yu nobuoka. [ruby-dev:45471] [Bug #6230]
-
-Sat Apr  7 22:35:36 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* include/ruby/win32.h (rb_w32_aspawn_flags): add the declaration of
-	  new function.
-
-	* process.c (enum): add EXEC_OPTION_PGROUP and move the position
-	  above for the usage in proc_spawn_n().
-
-	* process.c (proc_spawn_n): add an argument to pass new option
-	  `new_pgroup`. The option specifies CREATE_NEW_PROCESS_GROUP flag to
-	  CreateProcessW(). This flag is necessary for the usage of
-	  Process.kill on the subprocess on Windows.
-
-	* process.c (rb_exec_arg_addopt): ditto.
-
-	* process.c (rb_spawn_process): ditto.
-
-	* process.c (documentation for rb_f_spawn): add documentation for new
-	  option `new_pgroup` of spawn.
-
-	* test/ruby/test_process.rb (TestProcess#test_execopts_new_pgroup):
-	  add tests for option `new_pgroup`.
-
-	* test/ruby/test_thread.rb
-	  (TestThreadGroup#test_thread_timer_and_interrupt):
-	  add option `new_pgroup: true` to spawn on Windows. It's needed for
-	  Process.kill on a subprocess.
-
-	* win32/win32.c (CreateChild): add an argument to pass
-	  dwCreationFlags of CreateProcessW().
-
-	* win32/win32.c (rb_w32_spawn): ditto.
-
-	* win32/win32.c (rb_w32_aspawn_flags): add new function to pass
-	  dwCreationFlags.
-
-	* win32/win32.c (rb_w32_aspawn): refactor to move the content to
-	  rb_w32_aspawn_flags().
-	  [ruby-core:43245][Bug #6131]
-
-Sat Apr  7 22:32:00 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* test/ruby/test_thread.rb
-	  (TestThreadGroup#test_thread_timer_and_interrupt): skip on Windows.
-	  Process.kill cannot kill a subprocess if CREATE_NEW_PROCESS_GROUP
-	  flag is not specified in a call to CreateProcessW().
-
-	* win32/win32.c (CreateChild): revert the usage of
-	  CREATE_NEW_PROCESS_GROUP flag for compatibility.
-	  [ruby-core:43245][Bug #6131]
-
-Sat Apr  7 10:28:40 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych.rb: bumping up psych version to match release.
-	* ext/psych/psych.gemspec: ditto
-
-Sat Apr  7 02:07:00 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/parser.c: fall back to any encoding if the external
-	  encoding is wrong.  [ruby-core:44163]
-	* test/psych/test_encoding.rb: fix test
-
-Fri Apr  6 16:24:24 2012  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* struct.c (documentation for rb_struct_members_m):
-	  fix 'array of strings' to 'array of symbols'
-	  [ruby-core:44152][Bug #6264]
-
-Fri Apr  6 14:27:04 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* Makefile.in ($(LIBRUBY_A)): fix typo.
-
-Thu Apr  5 13:26:15 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* missing/alloca.c (xmalloc, xfree): use ruby version, not
-	  depending on RUBY_LIB_PREFIX.  [ruby-dev:45492][Bug #6255]
-
-Wed Apr  4 13:06:39 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/ftp/ftp.rb (Net::FTP#close): restore original read_timeout.
-
-Wed Apr  4 10:33:31 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/ftp/ftp.rb (Net::FTP#close): ignore exceptions from shutdown and
-	  read on closing.
-
-Wed Apr  4 01:48:35 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/ftp/ftp.rb (Net::FTP#close): close socket more gracefully.
-
-	* lib/ftp/ftp.rb (Net::BufferedSocket#shutdown): added.
-
-	* test/net/ftp/test_ftp.rb (FTPTest#create_ftp_server): wait socket
-	  with shutdown and read.
-
-Tue Apr  3 19:00:52 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/net/ftp/test_ftp.rb (FTPTest#create_ftp_server): should wait
-	  a little before closing socket because if the client call
-	  Net::FTP#getmultiline the socket is suddenly closed by the server in
-	  the getline loop.
-
-Tue Apr  3 18:33:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* process.c (setreuid, setregid): suppress warnings.
-	  [ruby-core:43374][Bug #6169]
-
-Tue Apr  3 10:18:27 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* enumerator.c (inspect_enumerator): suppress uninitialized
-	  instance variable warnings.  [ruby-dev:45449][Bug #6214]
-	  patched by no6v (Nobuhiro IMAI).
-
-Mon Apr  2 13:25:08 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse/ac.rb: autoconf-like options.
-
-Mon Apr  2 10:34:00 2012  eregon  <eregontp@gmail.com>
-
-	* string.c (rb_str_start_with, rb_str_end_with): raise an error if
-	  an argument is not convertible to a String.
-	  [ruby-core:40623][Bug #5536]
-
-Mon Apr  2 03:35:25 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/webrick/server.rb (WEBrick::GenericServer): close socket only if
-	  the socket is not closed yet.
-
-Sun Apr  1 23:03:18 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/net/ftp.rb (Net::BufferedSocket): should delegate send() to @io
-	  for Net::FTP#abort and Net::FTP#status.
-
-Sun Apr  1 00:41:56 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb: fixed the domain name in examples.
-
-Sat Mar 31 21:39:45 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/webrick/utils.rb (WEBrick::Utils::TimeoutHandler): dup to prevent
-	  @timeout_info's "can't add a new key into hash during iteration".
-
-Sat Mar 31 14:22:59 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (hash_default_value): extract from rb_hash_aref(), to be
-	  shared with rb_hash_shift(), so that overriding Hash#default
-	  will be respected.
-
-Sat Mar 31 14:16:02 2012  Sokolov Yura (funny-falcon)  <funny.falcon@gmail.com>
-
-	* hash.c: do not allocate st_table when it is not necessary.
-
-Sat Mar 31 13:42:39 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (read_timeout=, open_timeout=): supported timeout.
-
-Sat Mar 31 13:20:40 2012  Sokolov Yura (funny-falcon)  <funny.falcon@gmail.com>
-
-	* hash.c: remove unnecessary checks for Qundef in hash iterations.
-	  since hash use st_foreach_check for iterations, such checks are
-	  needless.
-
-Sat Mar 31 12:05:01 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
-
-	* ext/openssl/ossl_x509cert.c: Fix doc typo.
-
-Sat Mar 31 10:13:24 2012  Sokolov Yura (funny-falcon)  <funny.falcon@gmail.com>
-
-	* st.c (st_foreach_check, st_foreach): remove ancient check.  This
-	  check are from initial ordered hash commit when first entry were
-	  created with entry->fore = entry->back = entry.
-
-	* st.c (st_delete): use real_entries in st_delete for packed tables
-
-Sat Mar 31 07:53:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* st.c (st_foreach_check): remove the entry by replacing with never
-	  when ST_DELETE.
-
-	* hash.c (st_foreach_safe): since table is not for VALUE, Qundef is
-	  not special value, so use 0 instead.  therefore this function can be
-	  applied to only st_table which 0 is invalid as keys, e.g., IDs.
-
-	* hash.c: Qundef cannot be passed from st_foreach_check().
-
-	* hash.c, marshal.c, object.c, variable.c: fix callback argument types
-	  of iterators.
-
-Thu Mar 29 23:50:15 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* st.c (st_update): pass pointer to key to the callback function.
-
-Thu Mar 29 16:36:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* st.c (st_update): add existing parameter to the callback function.
-
-Thu Mar 29 16:35:32 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/test/unit.rb (terminal_width, del_status_line, put_status):
-	  extract as methods.
-
-Thu Mar 29 10:20:18 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
-
-	* ext/openssl/ossl_pkcs7.c: fix crash when parsing garbage data.
-	* test/openssl/test_pkcs7.rb: assert correct behavior for it.
-	  Thanks to Matt Venables for reporting the issue.
-	  [ruby-core:43250][Bug #6134]
-
-Thu Mar 29 10:16:05 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* thread_win32.c (TIME_QUANTUM_USEC): 10ms(= old setting) [experimental]
-	  cf. [Bug #6098]
-
-Thu Mar 29 10:12:12 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* thread.c (rb_threadptr_execute_interrupts_common): use defined
-	  TIME_QUANTUM_USEC instead of a magic number.  there is no meanings
-	  to use different values for checking interval of interruption and
-	  thread switching limits.
-	  cf. [Bug #6098]
-
-Thu Mar 29 09:26:17 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
-
-	* test/openssl/test_x509cert.rb: exclude test that fails when issuing
-	  a certificate with RSA signature and DSS1 digest for earlier
-	  OpenSSL versions when used in conjunction with OpenSSL 1.0.1.
-	  Thanks, Vit Ondruch, for reporting the issue.
-	  [ruby-core:42949][Bug #6089]
-
-Thu Mar 29 08:25:35 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
-
-	* NEWS: add note about unified behavior of encoding nil values in
-	  instances of OpenSSL::ASN1::ASN1Data.
-
-Thu Mar 29 07:45:36 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
-
-	* ext/openssl/ossl_asn1.c: raise TypeError when trying to encode nil
-	  values for Primitive instances.
-	* test/openssl/test_asn1.rb: Assert consistent behavior when
-	  encoding nil values: Primitives raise TypeError, Constructives
-	  raise NoMethodError.
-	  Fixes [ruby-core:43009][Bug #6102]
-
-Wed Mar 28 16:39:59 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* process.c (obj2uid, obj2gid): allow strings as input user/group id.
-	  [ruby-core:40923][Feature #5610]
-
-Wed Mar 28 15:06:18 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* marshal.c (r_symreal): default to ASCII-8BIT for non-ascii symbols,
-	  otherwise it should be converted to US-ASCII in rb_intern_str() if
-	  possible.  [ruby-core:43762][Bug #6209]
-
-Wed Mar 28 08:44:24 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych.rb: updating version to match gem
-	* ext/psych/psych.gemspec: ditto
-	* ext/psych/lib/psych/visitors/to_ruby.rb: fixing deprecation warning
-
-Tue Mar 27 23:44:11 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* io.c (io_unread): fixed memory leak.  report by nagachika via IRC.
-
-Tue Mar 27 22:44:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (verconf.h): separate load path specific stuff from
-	  config.h.
-
-Tue Mar 27 22:43:40 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/Makefile.sub: fix config.h path to include.
-
-Tue Mar 27 17:08:08 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* win32/win32.c (check_if_dir): fix memory leak.
-
-Tue Mar 27 13:13:51 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (str_new_empty): should copy also the encoding as an
-	  empty substring.  [ruby-dev:45441][Bug #6206]
-
-Mon Mar 26 23:43:04 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (parse227, parse228, parse229): don't use $~.
-
-Mon Mar 26 23:34:40 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (parse227, parse228, parse229): don't use local
-	  variables defined by named capture for other Ruby implementations
-	  such as Rubinius.
-
-Mon Mar 26 23:19:03 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (parse_pasv_port): refactored.
-
-Mon Mar 26 19:49:49 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* test/net/ftp/test_ftp.rb: add the test, which was forgotten in the
-	  previous commit.
-
-Mon Mar 26 19:37:27 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (parse227, parse228, parse229): refactored.
-
-Mon Mar 26 11:46:23 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* enumerator.c (inspect_enumerator): show method arguments of
-	  lazy enumerators correctly.
-
-Mon Mar 26 13:51:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (check_if_dir, check_if_wdir): fix for Visual C++
-	  not to use S_ISDIR().  [Feature #2408][ruby-core:26925]
-
-	* ruby.c (load_file_internal): ditto.
-
-Mon Mar 26 11:46:01 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (load_file_internal): bail out if the script is a directory.
-	  [Feature #2408][ruby-core:26925]
-
-	* win32/win32.c (rb_w32_open, rb_w32_wopen): check if the file is a
-	  directory when access denied, to set errno to EISDIR.
-
-Sun Mar 25 18:13:14 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* string.c (tr_setup_table): fix multiple non latin argument for
-	  non latin (over 256 characters) tr-like methods.
-	  [ruby-core:43371] [Bug #6167]
-
-Sun Mar 25 00:46:06 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* enumerator (lazy_initialize): set the instance variable "receiver"
-	  to include the receiver to the return value of inspect on a lazy
-	  enumerator directly created by Enumerator::Lazy.new.
-
-	* enumerator (RETURN_LAZY): don't set the instance variable "receiver".
-
-Sat Mar 24 23:59:00 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* enumerator (enumerator_inspect): include the original receiver and
-	  method name of Enumerator::Lazy in the result of inspect.
-	  [ruby-core:43345] [Bug #6159]
-
-	* enumerator (InitVM_Enumerator): don't use rb_define_alias for
-	  some methods such as collect in order to make rb_frame_this_func()
-	  return the correct method names.
-
-Sat Mar 24 22:22:18 2012  Sambasiva Rao Suda  <sambasivarao@gmail.org>
-
-	* time.c (time_init_1): Time.new will accept seconds as string or
-	  int.  [ruby-core:43569][Bug #6193]
-
-Fri Mar 23 15:12:12 2012  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* transcode.c (documentation for str_encode): Explain
-	  that transcoding to the same encoding is a no-op
-	  (i.e. no exceptions, no replacements,...).
-	  [ruby-core:43557][Bug #6190]
-
-Fri Mar 23 13:19:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bignum.c (rb_str_to_inum): must be ASCII compatible encoding as
-	  well as String#hex and String#oct.  [ruby-core:43566][Bug #6192]
-
-	* string.c (rb_must_asciicompat): check if ASCII compatible.
-
-Thu Mar 22 23:14:36 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* transcode.c (str_encode_bang, encoded_dup): if nothing was
-	  transcoded, just set encoding but leave coderange unchanged as
-	  force_encoding.  [ruby-core:43557][Bug #6190]
-
-Thu Mar 22 22:30:44 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* io.c (static int io_fflush): add the definition.
-	  Use it in set_binary_mode_with_seek_cur().
-
-	* io.c (set_binary_mode_with_seek_cur): refactoring to split the
-	  content into io_unread(). Fix the possibility of buffer overflow.
-
-	* io.c (io_unread): add new implementation for Windows. Previous one
-	  caused invalid cursor position using IO#pos with OS text mode. New
-	  one fixes the bug.
-
-	* test/ruby/test_io_m17n.rb
-	  (TestIO_M17N#test_pos_dont_move_cursor_position): add a test for
-	  above bug.
-	  [ruby-core:43497] [Bug #6179]
-
-Thu Mar 22 19:55:08 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_fstat, rb_w32_fstati64): convert FILETIME
-	  to time_t directly, not to be affected by TZ unnecessarily.
-
-	* win32/win32.c (unixtime_to_filetime): convert time_t to FILETIME
-	  simply.
-
-Thu Mar 22 13:43:31 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/openssl/ossl_pkey_rsa.c (rsa_generate): fix argument type.
-	  [Bug #6094]
-
-Thu Mar 22 11:14:10 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/ruby/test_io.rb (TestIO#test_pos_with_getc): updated.
-	  see [ruby-core:43550]
-
-Wed Mar 21 17:57:57 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* regcomp.c: Merge Onigmo 3d855b30d574536d3ae600260208c6624ae4791c.
-	  [Bug#6143] [Bug#6144] [Bug#6145]
-
-Wed Mar 21 17:01:55 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/ruby/test_io.rb (TestIO#test_pos_with_getc): added.
-	  see [Bug #6179][ruby-core:43518]
-
-Mon Mar 19 17:18:51 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* enumerator.c (lazy_flat_map_func): convert the block value to
-	  Array if it doesn't respond to each.  [ruby-core:43334]
-	  [Bug #6155]
-
-Mon Mar 19 16:34:14 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* enum.c (zip_i): variadic argument needs explicit cast on the
-	  platforms where VALUE is longer than int.
-
-Mon Mar 19 15:36:41 2012  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* enumerator.c (enumerable_lazy): add an example of take and first
-	  to the documentation.  [ruby-core:43344] [Bug #6158]
-	  add the description of the behavior when a block is given to zip
-	  or cycle.
-
-Mon Mar 19 15:20:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (iseq_specialized_instruction): DRY and replace chain
-	  of if-else with switch for special instructions.  based on a
-	  patch by Vasfed.  https://github.com/ruby/ruby/pull/105
-
-Mon Mar 19 15:05:54 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* test/test_pty.rb: same as r29280, skip tests when PTY allocation
-	  failed (that's not our fault).
-
-Sun Mar 18 23:21:17 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gc.c (aligned_free): fix condition for free.  memalign() and
-	  posix_memalign() are not defined together normally.
-
-Sun Mar 18 18:31:45 2012  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
-
-	* gc.c (aligned_malloc, aligned_free): added fallback implementations
-	  for platforms like OSX Leopard.
-
-Sun Mar 18 17:17:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bignum.c (rb_big_pow): estimate result bit size more precisely.
-	  [ruby-core:30735][Feature #3429]
-
-Sun Mar 18 17:17:36 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gc.c (free_method_entry_i): method entry may be in
-	  unlinked_method_entry_list.  [ruby-core:43383][Bug #6171]
-
-Sun Mar 18 15:27:31 2012  Tanaka Akira  <akr@fsij.org>
-
-	* compile.c: typo fix by Run Paint Run Run.
-	  [ruby-core:28368] [Bug #2824]
-
-Sun Mar 18 10:01:02 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* lib/profiler.rb: support calling singleton methods of
-	  an instance of BasicObject.
-
-Sat Mar 17 06:56:58 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* object.c:  Fix indentation of Class#inherited example.
-
-Sat Mar 17 01:46:05 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* string.c (trnext): fix bug with string ending with '\\'.
-	  [ruby-dev:45374][Bug #6160]
-
-	* test/ruby/test_string.rb (TestString#test_delete): test for
-	  above.
-
-Fri Mar 16 20:06:24 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (trnext): should advance char-wise.
-	  [ruby-core:43335][Bug #6156]
-
-Fri Mar 16 17:42:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_insnhelper.c: ditto.
 
-	* parse.y (block_append_gen): fix unreachable warning line number.
-	  should warn at the code, not jump.
+	* vm_insnhelper.h: ditto.
 
-Fri Mar 16 17:33:08 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* iseq.h: add iseq_compile_data::ci_index and
+	  iseq_compile_data::ci_kw_index.
 
-	* enum.c (enum_take): allocate buffer array before iteration, as well
-	  as enum_first did.
+	* tool/instruction.rb: introduce TS_CALLCACHE operand type.
 
-	* enum.c (enum_first): remove duplication.
+Sun Sep 20 02:18:10 2015  Tanaka Akira  <akr@fsij.org>
 
-Fri Mar 16 14:43:18 2012  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+	* test/lib/envutil.rb: mkfifo command based File.mkfifo method
+	  definition removed.
 
-	* load.c (ruby_init_ext): don't free the given pointer itself.
-	  It is not guaranteed even that the pointer is on heap.
+Fri Sep 18 20:11:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Mar 16 14:37:57 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* file.c (rb_file_s_mkfifo): implement File.mkfifo.
+	  [Feature #11536]
 
-	* vm_eval.c (rb_mod_module_eval): fix the documentation of
-	  class_eval to mention class variable lookup.  [ruby-core:40649]
-	  [Bug #5544]
+Fri Sep 18 16:56:19 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Fri Mar 16 14:27:11 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* NEWS: add Net::FTP#mlst and Net::FTP#mlsd.
 
-	* vm_eval.c (rb_mod_module_eval): fix the documentation of
-	  class_eval to mention constant lookup.  [ruby-core:41718]
-	  [Bug #5777]
+Fri Sep 18 07:39:22 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-Fri Mar 16 14:10:45 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* ext/objspace/objspace_dump.c (obj_type): add IMEMO types to the heap
+	  dump information.
 
-	* lib/net/imap.rb (initialize): raise Net::IMAP::Error when the
-	  connection is closed without a greeting response.
-	  [ruby-core:40938] [Bug #5616]
+Thu Sep 17 22:33:07 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Fri Mar 16 13:50:12 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* common.mk: fix command error with outside builddir.
 
-	* lib/net/imap.rb (rfc822_text): ignore [] after RFC822.
-	  [ruby-core:40945] [Bug #5620]
+Thu Sep 17 17:42:09 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Fri Mar 16 12:00:42 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* common.mk: separated test for test-framework from test-all task.
+	  They should be invoke at first before tests of test-all.
 
-	* vm_insnhelper.c (argument_error): use line number at the beginning
-	  of lambda, not the first code of its body.
-	  [ruby-core:43314][Bug #6151]
+Thu Sep 17 12:05:54 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* iseq.c (rb_iseq_first_lineno): constified.
+	* test/ruby/test_dir.rb (TestDir#test_fileno): s/?x/"x"/. Don't
+	  use tricky code, please.
 
-Fri Mar 16 11:20:07 2012  Shugo Maeda  <shugo@ruby-lang.org>
+Wed Sep 16 20:49:56 2015  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
 
-	* enumerator.c (lazy_take): don't enumerate an extra value.
-	  [ruby-dev:45370] [Bug #6152]
+	* encindex.h: fix typo of last #endif comment. [ci skip]
 
-Fri Mar 16 06:30:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Sep 16 20:39:26 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* enumerator.c (lazy_zip_func): variadic argument needs explicit cast
-	  on the platforms where VALUE is longer than int.
+	* variable.c (set_const_visibility): fail if the class/module is
+	  frozen.  [ruby-core:70828] [Bug #11532]
 
-	* enumerator.c (lazy_init_iterator): no need to check overflow twice.
+Wed Sep 16 17:16:43 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Mar 16 05:47:09 2012  Eric Hodel  <drbrain@segment7.net>
+	* vm_core.h (ENABLE_VM_OBJSPACE): enable per-VM object space on
+	  Windows by default, as rb_w32_sysinit() no longer depends on
+	  ruby_xmalloc.
 
-	* enumerator.c (lazy_init_iterator):  Fix type error (int vs long).
+Wed Sep 16 15:08:17 2015  Akinori MUSHA  <knu@iDaemons.org>
 
-Thu Mar 15 23:13:36 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* doc/syntax/literals.rdoc (Strings): [DOC] Revise the character
+	  literal part.
 
-	* enum.c (rb_enum_values_pack): rename from enum_values_pack, and
-	  remove static.
+Wed Sep 16 14:55:33 2015  Akinori MUSHA  <knu@iDaemons.org>
 
-	* enumerator.c (lazy_init_iterator, lazy_init_yielder,
-	  lazy_select_func, lazy_reject_func, lazy_grep_func): handle
-	  multiple values correctly.
+	* doc/syntax/literals.rdoc (Strings): [DOC] Document the full list
+	  of supported escape sequences in string literals.
 
-	* enumerator.c (lazy_grep): change the behavior when a block is
-	  given, to be consistent with Enumerable#grep.
+Wed Sep 16 14:49:58 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Mar 15 19:12:31 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* string.c (rb_str_setbyte): keep the code range as possible.
 
-	* enumerator.c (lazy_zip): rescue StopIteration returned by
-	  Enumerator#next.
+Wed Sep 16 13:23:48 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Thu Mar 15 18:19:53 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* doc/syntax/literals.rdoc (Strings): mention about ?a literal.
 
-	* enumerator.c (lazy_zip, lazy_cycle): Enumerator::Lazy#{zip,cycle}
-	  should be eager when a block is given, to be consistent with
-	  Enumerable#{zip,cycle}.
+Wed Sep 16 12:06:53 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-Thu Mar 15 17:45:27 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* dir.c (glob_helper): check pathtype once again by lstat(2) if
+	  dp->d_type is DT_UNKNOWN. XFS may return DT_UNKNOWN.
 
-	* enumerator.c (InitVM_Enumerator): renamed Enumerable::Lazy to
-	  Enumerator::Lazy.
+Wed Sep 16 03:49:19 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-Thu Mar 15 16:37:38 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* test/ruby/test_thread.rb (TestThread#test_mutex_synchronize):
+	  insert waste loop for invoking preemptive thread context switch.
+	  [Bug #11496]
 
-	* enumerator.c (enumerable_lazy): added cycle to the documentation.
+Tue Sep 15 19:38:55 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Mar 15 15:37:42 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gc.c (rb_objspace_alloc, rb_objspace_free): define always
+	  regardless ENABLE_VM_OBJSPACE, and free heap pages.
 
-	* parse.y (parser_yylex): fix warning line number.
+Tue Sep 15 15:15:41 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Mar 15 15:19:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* win32/win32.c (rb_w32_sysinit, rb_w32_readdir): compare by
+	  encoding index to get rid of encoding initialization before VM
+	  object space allocation.
 
-	* enumerator.c (lazy_cycle): check argument number overflow before
-	  creating temporary array.
+	* dir.c (fundamental_encoding_p, push_glob): compare by encoding
+	  index immediately.
 
-Thu Mar 15 15:04:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* enc/{ascii,us_ascii,utf_8}.c: set encoding indexes of
+	  fundamental built-in encodings so that usable as well as
+	  allocated rb_encoding before rb_enc_init().
 
-	* util.c (ruby_strtod): no need to check same digit for hexdigit
-	  twice.  [ruby-dev:45363][Bug #6146]
+	* encindex.h: separate encoding index constants from internal.h.
 
-	* parse.y (sym_check_asciionly): check ascii compatibility before
-	  scanning for code range.
+Tue Sep 15 13:13:13 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* parse.y (intern_str): set to us-ascii if ascii only.
-	  [ruby-dev:45363][Bug #6146]
+	* array.c (rb_ary_sort_bang, rb_ary_sort): [DOC] correct block
+	  return values, which may be a negative or positive integer, not
+	  only -1 or +1.
 
-	* file.c (ruby_enc_find_basename): allow NULL as alllen.
-	  [ruby-dev:45363][Bug #6146]
+Tue Sep 15 12:49:10 2015  Jason Barnabe  <jason.barnabe@gmail.com>
 
-Thu Mar 15 14:49:31 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* array.c (rb_ary_sort_bang, rb_ary_sort): [DOC] Correct
+	  description of array sort block return values.  And also fix up
+	  the grammar a bit.  [Fix GH-1020]
 
-	* string.c (rb_str_conv_enc_opts): default to original encoding.
+Tue Sep 15 12:44:32 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Mar 15 13:47:17 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* util.c (ruby_qsort): use BSD-style qsort_r if available.
 
-	* hash.c (env_str_new, rb_f_getenv, env_fetch): use rb_str_conv_enc()
-	  instead of rb_str_encode() to simplify the code.
+Mon Sep 14 19:26:34 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Thu Mar 15 12:44:50 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* lib/net/ftp.rb (parse_mlsx_entry): parse pathnames including
+	  space correctly.
 
-	* win32/win32.c, include/ruby/win32.h (rb_w32_ugetenv): new API to
-	  accept and to return UTF-8 strings.
+Mon Sep 14 11:12:10 2015  Anton Davydov  <antondavydov.o@gmail.com>
 
-	* win32/win32.c (rb_w32_getenv): follow above change.
+	* lib/racc/rdoc/grammar.en.rdoc: [DOC] fix typo, "convertion" to
+	  "conversion".  [Fix GH-1016]
 
-	* win32/win32.c (rb_w32_get_environ): returns UTF-8 environment area.
+Sun Sep 13 11:03:13 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* hash.c (env_str_new, rb_f_getenv, env_fetch): follow above changes.
-	  [Bug #5570] [ruby-core:40737]
+	* include/ruby/ruby.h: prefix RUBY or RB to global symbols to get
+	  rid of name conflicts with other headers.
 
-Thu Mar 15 10:57:27 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* include/ruby/encoding.h, include/ruby/intern.h: ditto.
 
-	* enumerator.c (lazy_cycle): add Enumerable::Lazy#cycle.
+Sun Sep 13 09:38:51 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Thu Mar 15 10:31:40 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/net/ftp.rb (size, modify, create, type, unique, perm, lang,
+	  media_type, charset): new methods to return standard facts.
 
-	* test/ruby/test_arity.rb (TestArity#err_mess): use assert_raise.
+Sat Sep 12 19:43:49 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Mar 15 07:03:52 2012  Eric Hodel  <drbrain@segment7.net>
+	* vm_insnhelper.c (vm_call_iseq_setup_normal): do not clear local
+	  variables here. vm_push_frame() clears.
 
-	* vm_eval.c (check_funcall):  Raise ArgumentError if respond_to?
-	  requires more than three arguments. [Bug #6000]
+	* vm_insnhelper.c (vm_call_iseq_setup_tailcall): ditto.
 
-	* test/ruby/test_object.rb (class TestObject):  Test for respond_to?
-	  requiring more than three arguments.
+	* vm_insnhelper.c (vm_push_frame): move check code to
+	  vm_check_frame().
 
-Thu Mar 15 06:08:06 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	  Reorder initialization timing to reuse same values (sp).
 
-	* include/ruby/intern.h: Add rb_check_arity, rb_error_arity [#6085]
+	* compile.c (rb_iseq_compile_node): use
+	  iseq_set_exception_local_table() for ISEQ_TYPE_DEFINED_GUARD.
 
-	* array.c: Use rb_check_arity / rb_error_arity
+Sat Sep 12 23:06:51 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* class.c: ditto
+	* lib/net/ftp.rb (file?, directory?, appendable?, creatable?,
+	  deletable?, enterable?, renamable?, listable?, directory_makable?,
+	  purgeable?, readable?, writable?): new methods.
 
-	* enumerator.c: ditto
+Sat Sep 12 21:27:22 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* eval.c: ditto
+	* lib/net/ftp.rb (FACT_PARSERS): support system dependent facts
+	  UNIX.mode, UNIX.owner, UNIX.group, UNIX.ctime, and UNIX.atime.
 
-	* file.c: ditto
+Sat Sep 12 19:08:58 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* hash.c: ditto
+	* win32/win32.c (rb_w32_dup2): should return the new fd on
+	  success, while msvcrt returns 0 wrongly.
 
-	* numeric.c: ditto
+Sat Sep 12 18:14:11 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* proc.c: ditto
+	* lib/net/ftp.rb (parse_mlsx_entry, mlst) raise an FTPProtoError
+	  when parsing failed.
 
-	* process.c: ditto
+Sat Sep 12 18:00:35 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* random.c: ditto
+	* lib/net/ftp.rb (TIME_PARSER): use "Z" instead of "+00:00" to
+	  get UTC time.  Thanks, Wilson Bilkovich.
 
-	* re.c: ditto
+Sat Sep 12 17:55:24 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* signal.c: ditto
+	* lib/net/ftp.rb (mlst, mlsd): support new commands MLST and MLSD
+	  specified in RFC 3659.
 
-	* string.c: ditto
+Sat Sep 12 16:14:31 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* struct.c: ditto
+	* file.c: access()/eaccess() wrapping methods check more than just uid.
+	  [fix GH-1007][ci skip] Patch by @eam
 
-	* transcode.c: ditto
+Sat Sep 12 16:07:01 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* vm_eval.c: ditto
+	* README.md: improve markdown rendering for readability.
+	  [fix GH-1015][ci skip] Patch by @Matrixbirds
 
-	* vm_insnhelper.c: ditto & implementation of rb_error_arity
+Sat Sep 12 14:30:03 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_arity.rb: tests for above
+	* process.c (save_redirect_fd): make saved FDs close-on-exec not
+	  to be inherited.
 
-Thu Mar 15 06:08:05 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* process.c (run_exec_dup2): restore close-on-exec flags too.
 
-	* vm_insnhelper.c: improve number of arguments error in case of
-	  optional parameters (issue #6085)
+	* win32/win32.c (fcntl): implement F_GETFD, F_SETFD, and
+	  F_DUPFD_CLOEXEC.
 
-	* include/ruby/intern.h: define UNLIMITED_ARGUMENTS
+Sat Sep 12 05:35:24 2015  Eric Wong  <e@80x24.org>
 
-	* test/ruby/test_arity.rb:  test for above
+	* rational.c (string_to_r_strict): preserve encoding in exception
 
-Thu Mar 15 00:58:04 2012  Shugo Maeda  <shugo@ruby-lang.org>
+Fri Sep 11 20:23:35 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* enumerator.c (enumerable_lazy): fix the documentation of
-	  Enumerable#lazy.
+	* vm_core.h: remove rb_call_info_t::aux.opt_pc.
 
-Wed Mar 14 22:01:06 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* vm_insnhelper.c: introduce shortcut functions for opt_pc == 0
+	  because opt_pc is always 0 on shortcut function.
 
-	* enumerator.c (lazy_init_iterator): break when Qundef is returned
-	  to make obj.drop(3).take(2) work properly.
+Fri Sep 11 17:49:36 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* enumerator.c (lazy_take_while): add Enumerable::Lazy#take_while.
+	* iseq.c: disable ISeq.load. It enabled accidentally at r51794.
 
-	* enumerator.c (lazy_drop): add Enumerable::Lazy#drop.
+Fri Sep 11 11:15:12 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* enumerator.c (lazy_drop_while): add Enumerable::Lazy#drop_while.
+	* lib/net/ftp.rb (size, mdtm, system): parse responses according to
+	  RFC 959 and 3659, where reply codes must be followed by SP.
 
-	* enumerator.c (InitVM_Enumerator): add Enumerable::Lazy#force as an
-	  alias of to_a.
+	* lib/net/ftp.rb (system): remove LF from the return value.
 
-Wed Mar 14 19:28:40 2012  Shugo Maeda  <shugo@ruby-lang.org>
+Thu Sep 10 22:48:49 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* enumerator.c (lazy_take): add Enumerable::Lazy#take.
+	* parse.y (literal_concat_gen, evstr2dstr_gen): keep literal
+	  encoding beginning with an interpolation same as the source file
+	  encoding.  [ruby-core:70703] [Bug #11519]
 
-Wed Mar 14 18:40:36 2012  Shugo Maeda  <shugo@ruby-lang.org>
+Thu Sep 10 22:15:51 2015  Joe Rafaniello  <jrafanie@redhat.com>
 
-	* enumerator.c: use long for array indices.
+	* process.c (rb_f_spawn): Be more specific regarding "other
+	  values" by having "non-zero positive integers" Add nil, the
+	  default value, as a possible value and what it means.
 
-Wed Mar 14 18:25:18 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	  Try to use more consistent language.
+	  [Fix GH-1008]
 
-	* enumerator.c: moved the comment of StopIteration.
+Thu Sep 10 15:16:02 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Wed Mar 14 17:55:29 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* lib/net/ftp.rb (getmultiline): refactor.
 
-	* numeric.c (flodivmod): must go through the same pass if HAVE_FMOD or
-	  not.  this is a bugfix of r35013.
+Thu Sep 10 12:17:28 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Mar 14 16:41:55 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* compile.c (iseq_build_from_ary_body): register cdhash to the
+	  iseq constant body instead of compile time mark array, not to
+	  get GCed.  [ruby-core:70708] [Feature #8543]
 
-	* test/test_tmpdir.rb (TestTmpdir#test_world_writable): skip on Windows.
+Wed Sep  9 18:16:14 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Wed Mar 14 15:09:23 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* lib/rubygems/stub_specification.rb (Gem::StubSpecification#data):
+	  should not change the value of $. when `require`ing gems.
+	  this fixed test failures introduced by r51813.
 
-	* numeric.c: fix flodivmod for cornercases [Bug #6044]
-	  add ruby_float_mod
+Wed Sep  9 16:55:45 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* insns.def (opt_mod): use ruby_float_mod
+	* ruby.c (usage, enable_option, disable_option, process_options): new
+	  option `--disable-did_you_mean`.
 
-	* internal.h: declare ruby_float_mod
+	* gem_prelude.rb: now requires did_you_mean gem by default if available.
 
-	* test/ruby/test_float.rb: tests for above
+Wed Sep  9 13:38:56 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/envutil.rb: create helper assert_is_minus_zero
+	* tool/extlibs.rb (do_patch): let "patch" command change the
+	  working directory and open the patch file there, instead of
+	  spawn options, so that proper error message will be shown by the
+	  command not just "chdir" or "open".
 
-Wed Mar 14 10:44:35 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Sep  9 11:33:05 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* enumerator.c (lazy_grep_func): should use === instead of =~, as
-	  well as Enumerable#grep
+	* common.mk (update-gems): use BASERUBY instead of RUNRUBY.
 
-Wed Mar 14 08:15:54 2012  Shugo Maeda  <shugo@ruby-lang.org>
+Wed Sep  9 11:08:59 2015  Zachary Scott  <zzak@ruby-lang.org>
 
-	* enumerator.c (lazy_flat_map_func): use each for non-Array objects.
+	* lib/delegate.rb: Remove backtrace cleaning for delegated methods
+	  This patch was provided by Rafael Franca and greatly improves
+	  performance when an exception is raised. [Bug #11461]
 
-Wed Mar 14 08:06:35 2012  Shugo Maeda  <shugo@ruby-lang.org>
+Wed Sep  9 10:05:41 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* enumerator.c (lazy_zip): add Enumerable::Lazy#zip.
+	* test/rubygems/test_config.rb: fix broken tests for Windows platform.
 
-	* enumerator.c (lazy_lazy): just returns self.
+Wed Sep  9 07:46:32 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Wed Mar 14 07:48:36 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+	* lib/rubygems: Update to RubyGems HEAD(fe61e4c112).
+	  this version contains new feature that warn invalid SPDX license
+	  identifiers. https://github.com/rubygems/rubygems/pull/1249
+	  and #1032, #1023, #1332, #1328, #1306, #1321, #1324
+	* test/rubygems: ditto.
 
-	* ext/date/date_core.c (datetime_s_now): [ruby-core:43256].
+Tue Sep  8 23:17:36 2015  Yuki Nishijima  <mail@yukinishijima.net>
 
-Tue Mar 13 22:00:14 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gems/bundled_gems: Upgrade the did_you_mean gem to 1.0.0.beta2.
 
-	* compile.c (iseq_set_arguments): keyword rest arg without keyword args.
+Tue Sep  8 23:09:28 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* node.c (dump_node): dump kw_rest_arg too.
+	* io.c (rb_io_s_popen): do not wait the child process during being
+	  killed.  [ruby-core:70671] [Bug #11510]
 
-	* parse.y (block_param, f_arg): more kwrest patterns.
-	  [ruby-core:42455][Bug #5989]
+Tue Sep  8 22:18:04 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* parse.y (new_args_gen): no extra kw_rest_arg if no keyword rest arg.
+	* gems/bundled_gems: revert because ruby trunk never be able to install
+	  the did_you_mean gem.  retry after enough test.
 
-Tue Mar 13 15:17:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Sep  8 21:48:22 2015  Yuki Nishijima  <mail@yukinishijima.net>
 
-	* parse.y (block_param, f_args): add rules for the case arguments
-	  begin with kwrest.  [ruby-core:42455][Bug #5989]
+	* gems/bundled_gems: Automatically install the did_you_mean gem
+	  as a bundled gem.  [Feature #11252]
 
-Tue Mar 13 12:37:53 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Tue Sep  8 17:17:48 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* io.c (io_encoding_set): always warn if external encoding and internal
-	  encoding are identical. [ruby-core:40727] [Bug #5568]
+	* vm_core.h: remove rb_call_info_t::blockiseq.
 
-Tue Mar 13 12:37:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* insns.def (send, invokesuper): pass blockiseq explicitly.
 
-	* gc.c: add ObjectSpace::WeakMap.  [ruby-dev:44565][Bug #5350]
+	* compile.c: catch up this fix.
 
-	* lib/weakref.rb: use WeakMap instead of _id2ref.
+	* iseq.c: ditto.
 
-Tue Mar 13 10:59:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_args.c: ditto.
 
-	* tool/rbinstall.rb (prepare): skip if basedir is not defined.
-	  [ruby-core:39135][Bug #5238]
+	* iseq.c (ISEQ_MINOR_VERSION): 2->3 because instruction spec was
+	  changed.
 
-	* tool/rbinstall.rb (CONFIG.[]): check for mandatory
-	  configurations.
+Tue Sep  8 15:01:19 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Tue Mar 13 00:09:18 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* lib/net/ftp.rb (list): fetch all the lines before yielding a block
+	  to allow other commands in the block.  [Feature #11454]
+	  Patched by Srikanth Shreenivas.
 
-	* enumerator.c (enumerable_lazy): added documentation.
+Tue Sep  8 12:05:00 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Mon Mar 12 20:19:25 2012  Tanaka Akira  <akr@fsij.org>
+	* win32/win32.c (rb_w32_read_reparse_point): return correct required
+	  buffer size for IO_REPARSE_TAG_MOUNT_POINT.
 
-	* lib/tmpdir.rb (Dir::tmpdir): test the current directory suitable for
-	  temporary directory.
+Tue Sep  8 00:14:43 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Mar 12 20:08:16 2012  Tanaka Akira  <akr@fsij.org>
+	* process.c (rb_execarg_parent_start1): raise with the target path
+	  name when open() failed.
 
-	* lib/fileutils.rb (fu_have_symlink?): specify TypeError for rescue
-	  clause.
+Mon Sep  7 23:45:28 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Mar 12 19:23:13 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* process.c (rb_exec_fail): raise with the target directory name
+	  when chdir() failed.  pointed out by sorah.
 
-	* encoding.c (rb_find_encoding): new function find encoding from
-	  arbitrary object as a pointer to rb_encoding, and return NULL if
-	  not found.
+Mon Sep  7 22:05:28 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* io.c (io_encoding_set): just warn unsupported encodings, but not
-	  exception.  [ruby-core:40726] [Bug #5567]
+	* win32/win32.c (insert): should use plain strdup() instead of
+	  ruby_strdup() at startup time, and plain free()ed in cmdglob().
 
-Mon Mar 12 19:03:32 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Sep  7 16:49:30 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_method.c (Init_eval_method): respond_to? and
-	  respond_to_missing? are public.
+	* vm_core.h (rb_vm_struct): define objspace always regardless
+	  ENABLE_VM_OBJSPACE.
 
-Mon Mar 12 14:56:52 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Sep  7 15:54:58 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* node.h (NEW_YIELD), parse.y (new_yield_gen): array-values flags
-	  has been already obsolete.  patch by Thomas Enebo.
-	  [ruby-core:41929][Bug #5847]
+	* ruby_atomic.h (ATOMIC_VALUE_CAS): fix typo.
+	  TODO: make arguments of all CAS macros consistent.
 
-Mon Mar 12 12:44:33 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Sep  6 16:07:22 2015  Eric Wong  <e@80x24.org>
 
-	* vm_method.c (Init_eval_method): copy basic methods to Exception.
-	  [ruby-core:40287][Bug #5473]
+	* ccan/list/list.h: suppress unused argument warnings
+	  [ccan commit 6aaca17e07588997417a73fac19dcf0ff17ed81b]
 
-Mon Mar 12 10:13:36 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Sep  5 11:39:52 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval_jump.c (rb_exec_end_proc): remember the latest exit status.
-	  [ruby-core:43173][Bug #5218]
+	* lib/rss/rss.rb (Time#w3cdtf): fix zero-trimmed width of fraction
+	  digits.  [ruby-core:70667] [Bug #11509]
 
-Mon Mar 12 07:33:12 2012  Tanaka Akira  <akr@fsij.org>
+Sat Sep  5 08:28:58 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/tmpdir.rb: update document for changing
-	  FileUtils.remove_entry_secure to FileUtils.remove_entry.
+	* hash.c (rb_hash_equal, rb_hash_eql): [DOC] the orders of each
+	  hashes are not compared.  [Bug #11508]
 
-	* NEWS: add incompatibility note for lib/tmpdir.rb.
+Fri Sep  4 23:26:22 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Mar 12 07:19:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* include/ruby/win32.h: fix macro name for VC runtime version,
+	  RT_VER is only in Makefile.
 
-	* lib/tmpdir.rb (Dir.tmpdir): should not use world-writable but
-	  non-sticky directory.
+Fri Sep  4 17:46:17 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* lib/tmpdir.rb (Dir.mktmpdir): check the parent directory.
+	* doc/contributing.rdoc: fix configuration option.
+	  [ci skip] [fix GH-1009]
 
-Mon Mar 12 07:04:11 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Sep  4 04:46:54 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* random.c (Init_Random): removed rb_Random_DEFAULT and register as
-	  mark-object instead of global variable.
+	* iseq.c (iseq_memsize): functions for wrapper object should have
+	  iseqw_ prefix.
 
-Mon Mar 12 07:03:32 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Sep  3 21:12:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* random.c (random_s_rand): ensure default PRNG is re-initialized
-	  after fork.  patched by Eric Wong.  [ruby-core:41209][Bug #5661]
+	* lib/cgi/session.rb (create_new_id): use SHA512 instead of MD5.
+	  pointed out by SARWAR JAHAN.
 
-Sun Mar 11 23:57:29 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Sep  3 20:29:18 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* pack.c (pack_unpack): when unpack('M') occurs an illegal byte
-	  sequence, output the "=" character and the following character in
-	  the decoded data without any transformation.
-	  [ruby-dev:44875] [Bug #5635]
+	* gc.c (rb_raw_obj_info): iseq->body->location.first_lineno is Fixnum.
 
-Sun Mar 11 22:32:43 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Sep  3 17:54:26 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/json: Merge 164a75c8bd2007d32c4d7665d53140d8fc126dcd.
-	  [ruby-core:41917] [Bug #5846]
+	* vm_eval.c (raise_method_missing): "names" should be singular.
+	  pointed out by Filip Bartuzi.
 
-Sun Mar 11 17:10:04 2012  Shota Fukumori  <sorah@tubusu.net>
+Thu Sep  3 17:50:09 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/test/unit.rb: Put error message into STDERR if failed to launch
-	  worker (job) process. [ruby-dev:44802] [Bug #5577]
+	* gc.c (rb_raw_obj_info): should support IMEMO/iseq.
 
-	* lib/test/unit/parallel.rb: If failed to increment_io, exit with code
-	  2. [ruby-dev:44802] [Bug #5577]
+Thu Sep  3 10:07:49 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Mar 11 15:46:45 2012  Shota Fukumori  <sorah@tubusu.net>
+	* vm_eval.c (raise_method_missing): refine error messages when a
+	  symbol is not given.  [Fix GH-1013]
 
-	* io.c: fix rdoc of `IO.binwrite` to show same as `IO.write` except
-	  it opens file with mode "wb:ASCII-8BIT". [Bug #5782] [ruby-core:42592]
+Wed Sep  2 18:49:55 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sat Mar 10 23:52:28 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/psych/*: merge psych master(8737e5b). It contains following fixes.
+	  https://github.com/tenderlove/psych/pull/242
+	  https://github.com/tenderlove/psych/pull/246 [ruby-list:50219]
+	* test/psych/*: ditto.
 
-	* st.c: pack tables also generic keys.  patched by Sokolov Yura at
-	  https://github.com/ruby/ruby/pull/84
+Wed Sep  2 18:04:13 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* st.c: add st_foreach_check for fixing iteration over packed table
-	  and st_delete_safe.  patched by Sokolov Yura at
-	  https://github.com/ruby/ruby/pull/84
+	* vm_insnhelper.h (GET_PC_COUNT): remove unused macro.
 
-	* st.c: fix packed num_entries on delete_safe.  patched by Sokolov
-	  Yura at https://github.com/ruby/ruby/pull/84
+Wed Sep  2 17:18:37 2015  Chris Schneider  <chris@christopher-schneider.com>
 
-Fri Mar  9 14:29:32 2012  Shugo Maeda  <shugo@ruby-lang.org>
+	* process.c (proc_detach): [DOC] fix typo "intent" as "intend" in
+	  rdoc.  [Fix GH-1011]
 
-	* enumerator.c (lazy_flat_map): add Enumerable::Lazy#flat_map.
+Wed Sep  2 16:58:21 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Mar  9 06:29:22 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+	* file.c (rb_realpath_internal): use filesystem encoding if the
+	  argument is in ASCII encodings.
 
-	* ext/psych/lib/psych.rb (load, parse): stop parsing or loading after
-	  the first document has been parsed.
+	* win32/file.c (rb_readlink): needs the result encoding.
 
-	* test/psych/test_stream.rb: pertinent tests.
+Tue Sep  1 18:37:15 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Mar  9 06:17:05 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+	* test/thread/test_queue.rb: catch up last commit.
 
-	* ext/psych/lib/psych.rb (parse_stream, load_stream): if a block is
-	  given, documents will be yielded to the block as they are parsed.
-	  [ruby-core:42404] [Bug #5978]
+Tue Sep  1 18:16:32 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/psych/lib/psych/handlers/document_stream.rb: add a handler that
-	  yields documents as they are parsed
+	* thread_sync.c (queue_do_close): ignore multiple close to allow
+	  multiple producers.
+	  https://bugs.ruby-lang.org/issues/10600#note-14
 
-	* test/psych/test_stream.rb: corresponding tests.
+Tue Sep  1 18:06:26 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Mar  9 00:35:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* thread_tools.c: rename thread_tools.c to thread_sync.c.
 
-	* enumerator.c (lazy_initialize, enumerable_lazy): no additional
-	  arguments.
+Mon Aug 31 17:04:45 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Mar  9 00:30:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* class.c (move_refined_method): should insert a write barrier
+	  from an original class to a created (cloned) method entry.
 
-	* enumerator.c: add Enumerable#lazy. based on the patch by
-	  Innokenty Mikhailov at <https://github.com/ruby/ruby/pull/101>
-	  [ruby-core:37164] [Feature #4890]
+	* test/ruby/test_refinement.rb: add a test.
 
-Fri Mar  9 00:25:59 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Aug 30 02:42:22 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-	* enumerator.c (enumerator_each, generator_each): pass arguments to
-	  the block with yielder.
+	* ext/openssl/ossl_ssl.c (ossl_ssl_method_tab): Only add SSLv3 support
+	  if the SSL library supports it.  Thanks Kurt Roeckx <kurt@roeckx.be>
+	  [Bug #11376]
 
-Fri Mar  9 00:25:02 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/extconf.rb: check for SSLv3 support in the SSL
+	  implementation.
 
-	* array.c (rb_ary_cat): new function to concat objects into array.
+	* test/openssl/test_ssl.rb (class OpenSSL): Skip tests that need SSLv3
+	  if there is no support.
 
-Thu Mar  8 16:44:02 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Aug 28 16:05:09 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* .gdbinit (rb_numtable_entry): update for recent refactoring of
-	  st_table.
+	* lib/rdoc/*: Update rdoc master(cfffed5)
+	  https://github.com/rdoc/rdoc/pull/337
+	  https://github.com/rdoc/rdoc/pull/367
 
-Wed Mar  7 22:41:50 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+Fri Aug 28 10:16:20 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/xmlrpc/client.rb (module XMLRPC): fix typo.
+	* vm.c (hook_before_rewind): prevent kicking :return event while
+	  finishing vm_exec func because invoke_block_from_c() kick a :return
+	  event for bmethods.
+	  [Bug #11492]
 
-	* test/xmlrpc/test_client.rb (test_async_call): add test for
-	  XMLRPC::Client#call_async to check above fix.
+	* test/ruby/test_settracefunc.rb: add a test.
 
-Wed Mar  7 16:30:24 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Aug 27 18:05:42 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* error.c (rb_load_fail): should honor encoding.
+	* lib/webrick/server.rb: use IO::NULL instead of '/dev/null'
+	* test/ruby/test_string.rb: ditto.
 
-	* load.c (load_failed): ditto.
+Thu Aug 27 15:24:57 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Mar  7 12:26:25 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* compile.c (iseq_set_sequence): rename variable names
+	  to make it readable.
 
-	* error.c (rb_load_fail): use path as a string, not char*.
+Thu Aug 27 07:45:34 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* internal.h: (rb_load_fail): moved from ruby/intern.h.
+	* thread_tools.c: add Queue#close(exception=false) and
+	  SizedQueue#close(exception=false).
+	  [Feature #10600]
 
-	* ruby.c (load_file_internal): fname cannot be NULL.
+	  Trying to deq from a closed empty queue return nil
+	  if exception parameter equals to false (default).
 
-Wed Mar  7 08:32:43 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+	  If exception parameter is truthy, it raises
+	  ClosedQueueError (< StopIteration).
+	  ClosedQueueError inherits StopIteration so that you can write:
 
-	* error.c (rb_loaderror_with_path): Adding the missing file as an
-	  instance variable to the LoadError exception.
-	  [ruby-core:39079]
+	    loop{ e = q.deq; (using e) }
 
-	* load.c: call rb_loaderror_with_path so that the missing path is
-	  added to the exception.
+	  Trying to close a closed queue raises ClosedQueueError.
 
-	* ruby.c: call rb_loaderror rather than raising our own LoadError
-	  exception.
+	  Blocking threads to wait deq for Queue and SizedQueue will be
+	  restarted immediately by returning nil (exception=false) or
+	  raising a ClosedQueueError (exception=true).
 
-	* include/ruby/intern.h: add declaration for rb_loaderror_with_path.
+	  Blocking threads to wait enq for SizedQueue will be
+	  restarted by raising a ClosedQueueError immediately.
 
-	* test/ruby/test_require.rb: add supporting test for LoadError#path
+	  The above specification is not proposed specification, so that
+	  we need to continue discussion to conclude specification this
 	  method.
 
-Wed Mar  7 08:28:00 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* lib/xmlrpc/parser.rb: support i8 types. Thanks Stas Kelvich!
-	  [ruby-core:29246] [Feature #3090]
-
-	* test/xmlrpc/test_client.rb: supporting test
+	* test/thread/test_queue.rb: add tests originally written by
+	  John Anderson and modify detailed behavior.
 
-Wed Mar  7 07:43:29 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+Wed Aug 26 10:52:02 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/xmlrpc/client.rb: assume servers that do not send a Content-Type
-	  header are sending 'text/xml'. Thanks Nathan Leavitt!
-	  [ruby-core:41204] [Bug #5660]
+	* re.c (rb_memsearch_wchar, rb_memsearch_qchar): test matching
+	  till the end of string.  [ruby-core:70592] [Bug #11488]
 
-	* test/xmlrpc/test_client.rb: supporting test
+	* test/ruby/test_m17n.rb (test_include?, test_index): add tests by
+	  Tom Stuart.
 
-Wed Mar  7 07:39:28 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+Wed Aug 26 09:26:00 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/xmlrpc/test_client.rb: adding a test for performing an XMLRPC
-	  call.
-	* test/xmlrpc/data/blog.xml: supporting XML document for the response.
+	* id_table.c (list_table_extend, hash_table_extend): remove C99
+	  features.  [ruby-dev:49239] [Bug #11487]
 
-Tue Mar  6 16:24:01 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Aug 25 06:34:43 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* parse.y (parser_tokadd_string): escape simple regexp meta
-	  character terminators.
+	* win32/win32.c (w32_symlink): implement symlink().
 
-Tue Mar  6 10:11:43 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Aug 24 16:01:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/io/console/console.c (set_rawmode): clear ECHOE and ECHOK
-	  bits too.
+	* encoding.c (rb_locale_encindex): find encoding index without
+	  making a string object every time.  [ruby-core:58160] [Bug #9080]
 
-	* ext/io/console/console.c (echo_p): ignore ECHOE and ECHOK bits.
-	  [ruby-dev:45309] [Bug #6116]
+Sat Aug 22 15:43:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/io/console/console.c (console_raw): fix rdoc.
+	* vm_eval.c (check_funcall_failed, check_funcall_missing): cache
+	  results of respond_to? and respond_to_missing?, and search a
+	  public method only for compatibility with rb_respond_to.
 
-	* ext/io/console/console.c (console_set_echo): mentioned about
-	  platform dependency.
+Sat Aug 22 08:23:32 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Mar  6 07:18:10 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+	* ext/thread/thread.c: move definitions of Queue, SizedQueue
+	  and ConditionalVariables to thread_tools.c. In other words,
+	  such classes are built-in.
+	  [Feature #8919]
 
-	* lib/xmlrpc/client.rb: switch net/http post2 calls to modern
-	  `request_post` methods.
+	  At first, I planned to embed only a Queue class.
+	  However, rubygems requires 'thread.rb' (rubygems are
+	  required at first, when launch MRI without --disable-gems).
+	  So most of people require 'thread.rb' as an embedded library.
 
-Tue Mar  6 02:31:20 2012  Aaron Patterson <aaron@tenderlovemaking.com>
-
-	* ext/psych/lib/psych/core_ext.rb: only extend Kernel if IRB is loaded
-	  in order to stop method pollution.
-
-Tue Mar  6 01:34:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (block_call): rules for block_call after block_call.
-	  based on a patch by pasberth https://github.com/ruby/ruby/pull/102
-	  [ruby-dev:45308][Bug #6115]
-
-Tue Mar  6 01:24:13 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  Now, ext/thread/thread.c is empty, only for a dummy for
+	  compatibility.
 
-	* parse.y (block_command, block_call): simplified rules.
+	* thread.c: move a definition of Mutex class to thread_tools.c.
 
-Mon Mar  5 18:28:35 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	  And define Mutex class under Thread (so now Mutex is Thread::Mutex).
+	  Because other thread related classes are also defined under Thread.
+	  We remain ::Mutex as Thread::Mutex. Only an inspect result is changed.
 
-	* test/ruby/test_regexp.rb (TestRegexp#test_source): fix typo.
-	* test/ruby/test_regexp.rb (TestRegexp#test_equal): ditto.
+	* common.mk: add dependency from thread.o to thread_tools.c.
 
-Mon Mar  5 17:11:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Aug 22 05:31:37 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/syck/lib/syck/rubytypes.rb (Exception.yaml_new): fix bug
-	  that causes YAML serialization problem for Exception.
-	  Exception#initialize doesn't use visible instance variable for
-	  the exception message, so call the method with the message.
-	  patched by Jingwen Owen Ou <jingweno AT gmail.com>.
-	  http://github.com/ruby/ruby/pull/41
+	* vm_opts.h, iseq.c, iseq.h: add compile option to force frozen
+	  string literals.
+	  [Feature #11473]
 
-Mon Mar  5 16:50:22 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	  This addition is not specification change, but to try frozen
+	  string literal world discussed on [Feature #11473].
 
-	* test/ruby/test_sleep.rb (TestSleep#test_sleep_5sec): syntax error.
+	  You can try frozen string literal world using this magical line:
 
-	* test/ruby/test_sleep.rb (TestSleep#test_sleep_5sec): call uname
-	  only on linux because it's a workaround for linux only.
+	    RubyVM::InstructionSequence.compile_option =
+	      {frozen_string_literal: true}
 
-Mon Mar  5 12:44:12 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  Note that this is a global compilation option, so that you need to
+	  compile another script like that:
 
-	* st.c (unpack_entries): chain entries directly.  based on a patch
-	  by Sokolov Yura <funny.falcon AT gmail.com>.
+	    p 'foo'.frozen? #=> false
+	    RubyVM::InstructionSequence.compile_option =
+	      {frozen_string_literal: true}
+	    p 'foo'.frozen? #=> false, because this line is already compiled.
+	    p eval("'foo'.frozen?") #=> true
 
-	* st.c (unpack_entries): use union instead of casted pointer.
-	  patched by Sokolov Yura <funny.falcon AT gmail.com>.
+	  Details:
+	    * String literals are deduped by rb_fstring().
+	    * Dynamic string literals ("...#{xyz}...") is now only frozen,
+	      not deduped. Maybe you have other ideas.
 
-	* st.c: use PACKED_ENT and FIND_ENTRY.  patched by Sokolov
-	  Yura <funny.falcon AT gmail.com>.
+	  Now, please do not use this option on your productions :)
+	  Of course, current specification can be changed.
 
-	* st.c (unpack_entries): reallocate bins if packed array size
-	  is not same as initial bins size.  based on a patch by
-	  Sokolov Yura <funny.falcon AT gmail.com>.
+	* compile.c: ditto.
 
-Mon Mar  5 11:51:48 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* test/ruby/test_iseq.rb: add a test.
 
-	* ext/bigdecimal/lib/bigdecimal/math.rb: remove description about
-	  BigMath#log. patched by Sho Hashimoto [ruby-dev:45307] [Bug #6112]
+Sat Aug 22 02:53:12 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-	* string.c (str_byteslice): fix typo.
+	* ext/psych/*: update to Psych 2.0.14
 
-Sun Mar  4 23:21:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/psych/*: ditto
 
-	* parse.y (parser_tokadd_string): regexp engine doesn't need
-	  terminators to be escaped.  [ruby-core:40364][Bug #5484]
+Fri Aug 21 19:58:48 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Mar  3 22:51:46 2012  Tanaka Akira  <akr@fsij.org>
+	* ext/objspace/objspace.c: add a new method ObjectSpace.count_symbols.
+	  [Feature #11158]
 
-	* process.c (rb_run_exec_options_err): chdir at last to interpret
-	  relative pathnames from the current directory of the parent process.
+	* symbol.c (rb_sym_immortal_count): added to count immortal symbols.
 
-Sat Mar  3 12:20:44 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+	* symbol.h: ditto.
 
-	* ext/date/date_strftime.c: reassigned some variables.
+	* test/objspace/test_objspace.rb: add a test for this method.
 
-Sat Mar  3 12:12:16 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+	* NEWS: describe about this method.
 
-	* ext/date/date_{parse,strptime}.c: [ruby-dev:45303].
+Fri Aug 21 19:48:17 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Mar  3 10:09:21 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+	* win32/Makefile.sub ($(LIBRUBY_SO)): needs additional libraries
+	  for extension libraries to link statically.
+	  [ruby-core:70499] [Feature #9018]
 
-	* lib/xmlrpc/client.rb (initialize): net/http defaults to 1_2 in 1.8+,
-	  so we can safely remove the call to enable it.
+Fri Aug 21 18:49:22 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Mar  3 08:42:25 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+	* include/ruby/ruby.h, cont.c, vm_trace.c: add a new event
+	  fiber_switch. We need more discussion about this feature
+	  so that I don't write it on NEWS.
+	  [Feature #11348]
 
-	* lib/xmlrpc/client.rb (new2): use URI for uri parsing.
-	* test/xmlrpc/test_client.rb: test that query params are passed to the
-	  client constructor.
+	* test/ruby/test_settracefunc.rb: add tests.
 
-Sat Mar  3 08:20:10 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+Fri Aug 21 17:32:42 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/xmlrpc/client.rb (new2): raises an ArgumentError on bad
-	  arguments.
-	* test/xmlrpc/test_client.rb: tests for bad uris
+	* vm_insnhelper.c (vm_invoke_block): we should not expect ci->argc is
+	  stable after invoking a block. [Bug #11451]
 
-Sat Mar  3 08:08:11 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+	* test/ruby/test_yield.rb: add a test. This test script is given by
+	  Alex Dowad.
 
-	* lib/xmlrpc/client.rb (new2): fix custom port specification when an
-	  SSL uri is used.
-	* test/xmlrpc/test_client.rb: tests for XMLRPC::Client.new2
+Fri Aug 21 06:35:50 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-Sat Mar  3 08:03:29 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/openssl/test_ssl_session.rb: Fix tests so that they take in to
+	  account OpenSSL installations that have SSLv3 disabled by default.
+	  Thanks Jeremy Evans <code@jeremyevans.net> for the patches.
+	  [Bug #11366] [Bug #11367]
 
-	* ext/syck/rubyext.c (mktime_do): use ISDIGIT().
-	  [ruby-core:43060] [Bug #6108]
+Thu Aug 20 22:19:17 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/syck/token.c (sycklex_yaml_utf8): cast as unsigned char.
-	  [ruby-core:43060] [Bug #6108]
+	* vm_method.c (basic_obj_respond_to): call respond_to_missing?
+	  only when redefined.  [ruby-core:70460] [Bug #11465]
 
-Sat Mar  3 06:57:14 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Aug 20 14:13:27 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* configure.in (ruby_pc): make configurable.  [Bug #6051]
+	* vm_eval.c (check_funcall_respond_to): share the behavior with
+	  rb_obj_respond_to.  [ruby-core:70460] [Bug #11465]
 
-Fri Mar  2 17:49:03 2012  Hiroshi Nakamura  <nahi@ruby-lang.org>
+	* vm_method.c (vm_respond_to): extract from rb_obj_respond_to and
+	  merge r39881.
 
-	* .travis.yml (branches): Enable TravisCI for ruby_1_9_3.
+Thu Aug 20 08:53:09 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Mar  2 17:13:33 2012  Hiroshi Nakamura  <nahi@ruby-lang.org>
+	* vm_method.c (rb_obj_respond_to): reuse found method entry
+	  instead of searching same entry repeatedly.
 
-	* test/ruby/test_array.rb (test_combination2): Make the test case for
-	  [ruby-core:29240] more descriptive.
-	  cf. http://bugs.jruby.org/6518
+Thu Aug 20 08:31:17 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Mar  2 16:37:11 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* dir.c (replace_real_basename), win32/win32.c (opendir_internal):
+	  check reparse point tags and treat supported tags only as
+	  symbolic links.  [ruby-core:70454] [Bug #11462]
 
-	* file.c (file_expand_path): use wcscasecmp().
+Wed Aug 19 23:59:28 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-Fri Mar  2 16:36:31 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): add OP_ALL to
+	  existing options rather than just setting it.  Some vendors apply
+	  custom patches to their versions of OpenSSL that set default values
+	  for options.  This commit respects the custom patches they've
+	  applied.
 
-	* thread_pthread.c (native_cond_timeout): cast explicitly to suppress
-	  a warning.
+	* test/openssl/test_ssl.rb (class OpenSSL): check that OP_ALL has been
+	  added to the options.
 
-Fri Mar  2 16:35:56 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Aug 19 23:55:29 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* io.c (pipe_open): cmd is no longer used if fork is available.
+	* process.c (rb_f_spawn): [DOC] elaborate environment variable
+	  values.  [ruby-core:70456] [Bug #11463]
 
-Thu Mar  1 16:13:18 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Aug 19 23:48:06 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* internal.h (rb_file_const, rb_file_load_ok): moved functions for
-	  internal use only.
+	* win32/win32.c (winnt_lstat): check reparse point tags and treat
+	  supported tags only as symbolic links.
+	  [ruby-core:70454] [Bug #11462]
 
-Thu Mar  1 15:40:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Aug 18 20:05:49 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* win32/makedirs.bat: new command to make intermediate
-	  directories, and not to report any errors if the directory
-	  already exists.
+	* thread_pthread.c (reserve_stack): ensure the memory is really
+	  allocated. [Bug #11457]
 
-	* win32/Makefile.sub (MAKEDIRS): enable command extensions.
+Tue Aug 18 17:19:21 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Mar  1 01:25:43 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* parse.y (IS_BEG): include labeled argument state, which was
+	  EXPR_LABELARG.  [ruby-dev:49221] [Bug #11456]
 
-	* regparse.c (is_onechar_cclass): optimize character class
-	  Merge Onigmo 27278c12e6674043cc8affca6507e20e119a86ee.
+Tue Aug 18 16:16:21 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* regparse.c (is_onechar_cclass): [bug] unexpected match occurs when a
-	  char class contains no char
+	* include/ruby/ruby.h (RClass): define only in C, `__attribute__`
+	  between `struct` and the name can't compile with g++.
+	  [ruby-core:70297] [Bug #11426]
 
-	* enc/unicode.c (init_case_fold_table): define the sizes of case
-	  folding tables in casefold.h
+Mon Aug 17 20:56:36 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Feb 29 16:11:34 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* parse.y: fix syntax error at do-block after a conditional
+	  operator.  separate label-allowed and after-a-label states from
+	  others as bit flags.  [ruby-dev:48790] [Bug #10653]
 
-	* win32/Makefile.sub (MAKEDIRS): use mkdir of cmd.exe instead of ruby.
-	  [Bug #6103] [ruby-core:43012]
+Mon Aug 17 11:57:36 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* win32/README.win32: added a notice about command extension of cmd.exe.
+	* io.c (rb_io_each_codepoint): raise an exception at incomplete
+	  character before EOF when conversion takes place.  [Bug #11444]
 
-Wed Feb 29 15:39:39 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Sun Aug 16 17:33:45 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* test/ruby/test_io.rb (TestIO#test_readpartial_locktmp): skip on
-	  windows because of the platform restriction.
+	* gems/bundled_gems: update latest version of bundled gems.
+	  It includes minitest-5.8.0 and test-unit 3.1.3.
 
-Wed Feb 29 15:38:50 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Sun Aug 16 17:24:10 2015  Kazuki Tsujimoto  <kazuki@callcc.net>
 
-	* test/ruby/memory_status.rb (Memory): syntax error.
+	* gc.c (gc_mark_children): check if RCLASS_EXT is valid
+	  before marking. This fixes the following test failure
+	  introduced in r51126:
 
-Wed Feb 29 13:06:42 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	    make test-all TESTOPTS='--gc-stress ruby/test_refinement.rb'
 
-	* test/ruby/memory_status.rb: use /proc/self/status if it is in
-	  the expected format.
+Sat Aug 15 10:51:08 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Feb 29 06:14:51 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+	* ext/win32/lib/win32/registry.rb (API#SetValue): data size should
+	  be in bytes, not in chars.  [ruby-core:70365] [Bug #11439]
 
-	* ext/date/date_core.c: reverted r34825.
+Sat Aug 15 10:15:20 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Feb 28 23:20:01 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+	* io.c (rb_io_each_codepoint): read more data when read partially.
+	  [ruby-core:70379] [Bug #11444]
 
-	* Makefile.in (PLATFORM_DIR): add a variable for `win32` directory.
-	* Makefile.in (clean-platform): add new target.
-	  It cleans `win32` directory.
+Sat Aug 15 04:33:39 2015  Eric Wong  <e@80x24.org>
 
-	* common.mk (clean): add a dependency for `win32` directory.
-	* common.mk (distclean): ditto.
-	* common.mk (distclean-platform): add new target.
-	  It cleans `win32` directory.
-	* common.mk ($(PLATFORM_D)): add new target to make `win32` directory.
-	* common.mk (win32/win32.$(OBJEXT)): move win32.o into `win32`
-	  directory.
-	* common.mk (win32/file.$(OBJEXT)): add new target for win32/file.c.
+	* hash.c (any_hash): skip rb_objid_hash for static syms
+	  (rb_num_hash_start): extract from rb_ident_hash
+	  (rb_objid_hash): call rb_num_hash_start
+	  (rb_ident_hash): ditto
+	  [ruby-core:70181] [Feature #11405]
 
-	* configure.in: move win32.o into `win32` directory and add
-	  win32/file.o to MISSING.
+Sat Aug 15 04:16:13 2015  Eric Wong  <e@80x24.org>
 
-	* file.c (file_load_ok, rb_file_load_ok): replace static
-	  file_load_ok() with public rb_file_load_ok().
-	  It's to link Windows implementation in win32/file.c.
-	* file.c (rb_find_file_ext_safe): ditto.
-	* file.c (rb_find_file_safe): ditto.
+	* iseq.c (rb_iseq_mark): reduce NULL checks
 
-	* win32/file.c (rb_file_load_ok): new file. Add Windows specific
-	  optimized implementation of rb_file_load_ok(). We created a
-	  separated file to avoid too many #ifdef macro which is unreadable.
+Fri Aug 14 18:50:57 2015  Eric Wong  <e@80x24.org>
 
-	* win32/Makefile.sub (PLATFORM_DIR): add a variable for `win32`
-	  directory.
-	* win32/Makefile.sub (MISSING): move win32.obj into `win32`
-	  directory and add win32/file.obj to MISSING.
-	* win32/Makefile.sub (MAKEDIRS): replace MINIRUBY with BASERUBY.
-	  It's because miniruby doesn't exist when making `win32` directory.
-	* win32/Makefile.sub (clean-platform): add new target to clean `win32`
-	  directory.
-	* win32/Makefile.sub ({$(srcdir)}.c{}.obj): make it not match
-	  win32/file.c to build properly.
-	* win32/Makefile.sub (win32/win32.$(OBJEXT)): move win32.obj into
-	 `win32` directory.
+	* method.h (METHOD_ENTRY_VISI_SET): cast visi to int
+	  (METHOD_ENTRY_FLAGS_SET): ditto
 
-	  Patch created with Luis Lavena.
-	  [ruby-core:42480] [Feature #5999]
+Fri Aug 14 18:43:11 2015  Eric Wong  <e@80x24.org>
 
-Tue Feb 28 20:27:25 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+	* process.c (close_unless_reserved): add extra check
+	  (dup2_with_divert): remove
+	  (redirect_dup2): use dup2 without divert
+	  (before_exec_non_async_signal_safe): adjust call + comment
+	  (rb_f_exec): stop timer thread for all OSes
+	  (rb_exec_without_timer_thread): remove
+	* eval.c (ruby_cleanup): adjust call
+	* thread.c (rb_thread_stop_timer_thread): always close pipes
+	* thread_pthread.c (struct timer_thread_pipe): add writing field,
+	  mark owner_process volatile for signal handlers
+	  (rb_thread_wakeup_timer_thread_fd): check valid FD
+	  (rb_thread_wakeup_timer_thread): set writing flag to prevent close
+	  (rb_thread_wakeup_timer_thread_low): ditto
+	  (CLOSE_INVALIDATE): new macro
+	  (close_invalidate): new function
+	  (close_communication_pipe): removed
+	  (setup_communication_pipe_internal): make errors non-fatal
+	  (setup_communication_pipe): ditto
+	  (thread_timer): close reading ends inside timer thread
+	  (rb_thread_create_timer_thread): make errors non-fatal
+	  (native_stop_timer_thread): close write ends only, always,
+	   wait for signal handlers to finish
+	  (rb_divert_reserved_fd): remove
+	* thread_win32.c (native_stop_timer_thread): adjust (untested)
+	  (rb_divert_reserved_fd): remove
+	* vm_core.h: adjust prototype
+	  [ruby-core:70386] [Bug #11336]
 
-	* ext/date/date_core.c: [ruby-core:42998]
+Fri Aug 14 18:40:43 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Feb 28 18:47:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/win32/lib/win32/registry.rb (API#SetValue): add terminator
+	  size, not 1 byte.  [ruby-core:70365] [Bug #11439]
 
-	* io.c (io_binwrite, rb_io_syswrite): use shared frozen source
-	  strings.
+Thu Aug 13 22:49:42 2015  Juanito Fatas  <katehuang0320@gmail.com>
 
-	* io.c (io_fread, io_getpartial, rb_io_sysread): set buffer size
-	  after check if readable, which can cause thread switch.
-	  [ruby-dev:45297][Bug #6099]
+	* lib/timeout.rb (Timeout#timeout): freeze a string message to
+	  reduce string allocations.  [Fix GH-996]
 
-Tue Feb 28 17:16:01 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Aug 13 17:42:34 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/time.rb (Time#xmlschema): use strftime specifiers instead of
-	  fractional exponential calculation which yields undesirable
-	  result.  [ruby-core:42997][Bug #6100]
+	* vm_core.h (rb_call_info_kw_arg_bytes): move the definition
+	  to iseq.h because this function is shared with iseq.c and compile.c.
 
-Tue Feb 28 14:15:29 2012  Eric Hodel  <drbrain@segment7.net>
+Thu Aug 13 14:36:31 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/net/protocol.rb: Add OpenTimeout subclass of Timeout::Error
-	* lib/net/pop.rb:  Modernize Timeout usage.  Patch by Eric Wong.
-	  Use Net::OpenTimeout instead of Timeout::Error.  [Bug #5765]
-	* lib/net/http.rb:  ditto
-	* lib/net/smtp.rb:  ditto
-	* lib/net/telnet.rb:  ditto
+	* object.c (rb_num_to_dbl): move from num2dbl_with_to_f in math.c.
 
-Tue Feb 28 13:51:12 2012  Eric Hodel  <drbrain@segment7.net>
+Thu Aug 13 09:01:25 2015  Eric Wong  <e@80x24.org>
 
-	* lib/net/http.rb:  Retry HTTP requests for additional network errors.
-	  Introduce OpenTimeout subclass of Timeout::Error.  [Bug #6001]
-	* test/net/http/test_http.rb:  Reduce timeout to 0.01s for faster test
-	* test/net/http/test_https.rb:  ditto
+	* load.c (features_index_add): avoid repeat calculation
 
-Tue Feb 28 11:44:49 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Aug 12 21:57:31 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* configure.in (debugflags): check if -ggdb is accepted.
-	  [ruby-core:42875][Bug #6080]
+	* id_table.c: IMPL() macro accept op as _opname instead of opname
+	  because jemalloc seems to replace the word `free' to `je_free'.
 
-Tue Feb 28 10:28:51 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+Wed Aug 12 21:51:11 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/psych/lib/psych.rb: default open YAML files with utf8 external
-	  encoding. [ruby-core:42967]
-	* test/psych/test_tainted.rb: ditto
+	* id_table.c (mix_id_table_insert): fix memory leak.
 
-Mon Feb 27 23:46:09 2012  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Wed Aug 12 21:17:38 2015  Eric Wong  <e@80x24.org>
 
-	* parse.y (opt_bv_decl): allow newline at the end.  [ruby-dev:45292]
+	* iseq.c (iseq_memsize): reimplement for wrapper
+	  (param_keyword_size): extracted from iseq_memsize
+	  (iseqw_mark): new mark function
+	  (iseqw_data_type): new data type
+	  (iseqw_new): wrap as iseqw_data_type
+	  (iseqw_check): adjust for wrapper
+	  (Init_ISeq): remove iseqw_iseq_key initialization
+	* test/objspace/test_objspace.rb: new test
+	  [ruby-core:70344] [Feature #11435]
 
-Mon Feb 27 20:43:05 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed Aug 12 21:15:27 2015  Eric Wong  <e@80x24.org>
 
-	* io.c (rb_io_set_pos): add rdoc about textmode.
+	* vm_core.h (rb_call_info_kw_arg_bytes): extract from compile.c
+	* compile.c (iseq_build_callinfo_from_hash): use above function
 
-	* test/ruby/test_io.rb (TestIO#test_setpos): use binmode.
+Wed Aug 12 18:00:17 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Feb 27 17:00:15 2012  Akinori MUSHA  <knu@iDaemons.org>
+	* class.c (move_refined_method): same as the last commit.
 
-	* string.c (rb_str_crypt): Update rdoc and state that this
-	  function is system dependent.  Reviewed by nobu, thanks to
-	  @takai.
+Wed Aug 12 17:57:53 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Feb 27 17:03:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* class.c, gc.c vm.c: use ID_TABLE_* instead of ST_*
+	  (such as ST_CONTINUE) for enum rb_id_table_iterator_result.
 
-	* ext/bigdecimal/bigdecimal.c (GetVpValueWithPrec): since methods
-	  can be overridden, so should not make an assumption on the type
-	  of results.  [ruby-core:42969][Bug #6093]
+Wed Aug 12 17:05:36 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Feb 27 10:54:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* id_table.h: introduce ID key table.
+	  [Feature #11420]
 
-	* lib/mkmf.rb (try_cppflags, try_cflags, try_ldflags): replace the
-	  target flags if the given flag is accepted.
+	  This table only manage ID->VALUE table to reduce overhead of st.
 
-Mon Feb 27 10:53:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  Some functions prefixed rb_id_table_* are provided.
 
-	* test/rubygems/test_gem_specification.rb (test_self_from_yaml_syck_default_key_bug):
-	  ignore the test for too old versions.
+	* id_table.c: implement rb_id_table_*.
 
-Mon Feb 27 10:53:12 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  There are several algorithms to implement it.
 
-	* lib/test/unit.rb (Test::Unit::Runner#puke): skips with no
-	  messages should be trivial.
+	  Now, there are roughly 4 types:
 
-Mon Feb 27 10:50:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	    * st
+	    * array
+	    * hash (implemented by  Yura Sokolov)
+	    * mix of array and hash
 
-	* io.c, process.c, time.c, ext: use rb_sys_fail_str instead of
-	  rb_sys_fail.
+	  The macro ID_TABLE_IMPL can choose implementation.
+	  You can see detailes about them at the head of id_table.c.
 
-Mon Feb 27 10:48:49 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  At the default, I choose 34 (mix of list and hash).
+	  This is not final decision.
+	  Please report your suitable parameters or
+	  your data structure.
 
-	* ext/openssl/extconf.rb: suppress useless deprecation warnings
-	  from OpenSSL added by Apple.
+	  * symbol.c: introduce rb_id_serial_t and rb_id_to_serial()
+	    to represent ID by serial number.
 
-Sun Feb 26 23:29:49 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	  * internal.h: use id_table for method tables.
 
-	* regparse.c (add_code_range_to_buf0): wrong condition of duplicated
-	  warnings.
+	  * class.c, gc.c, marshal.c, vm.c, vm_method.c: ditto.
 
-Sun Feb 26 11:26:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Aug 12 05:19:11 2015  Eric Wong  <e@80x24.org>
 
-	* compile.c (iseq_compile_each): call on special object instead of
-	  self.  since stabby lambda is a syntax, so it should not be
-	  affected by the context.  [ruby-core:42349][Bug #5966]
+	* parse.y (rb_parser_compile_cstr): remove volatile arg
+	  (rb_parser_compile_string): ditto
+	  (rb_parser_compile_file): ditto
+	  (rb_parser_compile_string_path): ditto
+	  (rb_parser_compile_file_path): ditto
+	  [ruby-core:70323] [Misc #11431]
 
-	* insns.def (send): no special deal for FCALL.  self should be put
-	  on TOS instead.
+Tue Aug 11 22:59:57 2015  Tanaka Akira  <akr@fsij.org>
 
-Sun Feb 26 05:35:43 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* numeric.c (Init_Numeric): Fix document for Float::MIN and
+	  Float::EPSILON.
 
-	* error.c (report_bug): use buf and snprintf to avoid consuming stack.
-	  [ruby-dev:45272] [Bug #6058]
+Tue Aug 11 15:22:31 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Feb 25 17:41:19 2012  Tanaka Akira  <akr@fsij.org>
+	* include/ruby/ruby.h (ALLOCV_N): check integer overflow, as well
+	  as ruby_xmalloc2.  pointed out by Paul <pawlkt AT gmail.com>.
 
-	* ext/dbm/extconf.rb (headers): try ambiguous headers at last.
+Tue Aug 11 14:57:09 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Feb 25 17:07:15 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* array.c (rb_ary_repeated_permutation): fix buffer size, ALLOCV_N
+	  already multiplies element size.
 
-	* lib/fileutils.rb: use chomp(?/) instead of sub to optimize and avoid
-	  to regexping invalid string.
+Tue Aug 11 12:13:20 2015  Jeremy Evans  <merch-redmine@jeremyevans.net>
 
-Sat Feb 25 16:18:24 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* test/openssl/test_ssl.rb: Fix LocalJumpErrors being raised
+	  in OpenSSL tests. [ruby-core:70020][Bug #11368]
 
-	* complex.c (nucomp_marshal_load): raise error on invalid data.
-	  reported by John Firebaugh [ruby-core:42860] [Bug #6076]
+Tue Aug 11 11:54:13 2015  Alexey Lipnyagov  <liptonshmidt@gmail.com>
 
-Sat Feb 25 14:46:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* string.c: Fix documentation for String#slice
+	  [ruby-core:70298][Bug #11427]
 
-	* ext/dl/dl.c (Init_dl): support intrinsic types, size_t, ptrdiff_t
-	  and intptr_t.  [ruby-core:42460][Feature #5992]
+Tue Aug 11 11:53:28 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/fiddle/fiddle.c (Init_fiddle): ditto.
+	* parse.y (superclass): make superclass rule optional and allow
+	  any contents without a terminator.  [EXPERIMENTAL]
 
-	* ext/dl/lib/dl/cparser.rb (DL::CParser#parse_ctype): ditto.
+Tue Aug 11 10:58:42 2015  Juanito Fatas  <juanitofatas@gmail.com>
 
-Sat Feb 25 11:08:28 2012  Tanaka Akira  <akr@fsij.org>
+	* string.c: [DOC] Make #end_with? example doc symmetry
+	  with #start_with? [fix GH-992][ci skip]
 
-	* ext/curses/curses.c (Init_curses): use rb_define_const once for
-	  Curses::VERSION.
+Tue Aug 11 10:51:19 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/dbm/dbm.c (Init_dbm): ditto for DBM::VERSION.
+	* test/ruby/test_array.rb: Add test for `Array#flatten` with level 1
+	  [fix GH-986] Patch @yui-knk
 
-Sat Feb 25 10:34:22 2012  Tanaka Akira  <akr@fsij.org>
+Tue Aug 11 10:48:16 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/curses/curses.c (Init_curses): make Curses::VERSION
-	  understandable without context.
+	* enum.c: added doc for Enumerable#zip
+	  [fix GH-985] Patch by @yui-knk
+	* test/ruby/test_enum.rb: added tests for Enumerable#zip
+	  [fix GH-985] Patch @yui-knk
 
-	* ext/dbm/dbm.c (Init_dbm): ditto for DBM::VERSION.
+Tue Aug 11 10:33:26 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sat Feb 25 07:53:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_method.c: typo fix [fix GH-993][ci skip] Patch by @0x0dea
+	* test/ruby/test_refinement.rb: ditto.
 
-	* parse.y (parser_tokadd_string): insert a backslash only if
-	  quoted by single quotes.  [ruby-dev:45281] [Bug #6069]
+Sun Aug  9 14:15:54 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Feb 25 07:53:49 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm.c (Init_vm_objects, rb_vm_fstring_table): use frozen_strings
+	  table in rb_vm_t.  [ruby-core:70274] [Bug #11423]
 
-	* dir.c (dir_inspect), io.c (rb_io_inspect): keep encoding of path.
-	  [Bug #6072]
+Sat Aug  8 03:59:51 2015  Zachary Scott  <zzak@ruby-lang.org>
 
-Sat Feb 25 07:53:40 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* object.c: [DOC] Improve grammar for Module#===
+	  Patch by @SkyBirdSoar in documenting-ruby/ruby#52:
+	  https://github.com/documenting-ruby/ruby/pull/52
 
-	* dir.c (dir_initialize): keep path in original encoding.
+Sat Aug  8 03:39:33 2015  Zachary Scott  <zzak@ruby-lang.org>
 
-	* error.c (syserr_initialize): prefer the encoding of message over
-	  locale.  [ruby-dev:45279][Bug #6071]
+	* hash.c: [DOC] Improve description of symbol key syntax
+	  Patch by Raphael Das Gupta in documenting-ruby/ruby#51:
+	  https://github.com/documenting-ruby/ruby/pull/51
 
-Sat Feb 25 06:55:29 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Aug  7 21:04:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* file.c (utime_internal): fix a variable missed to replace.
-	  [ruby-core:42864] [Bug #6077]
+	* parse.y (parser_params): turn in_def and in_single into bit
+	  flags and reduce the size by 2-words.
 
-Fri Feb 24 18:21:55 2012  Hiroshi Nakamura  <nahi@ruby-lang.org>
+	* parse.y (parser_params): remove redundant prefixes.
 
-	* test/zlib/test_zlib.rb (TestZlibGzipReader#test_encoding): Add
-	  encoding testcases for GzipReader#read.  read() emits
-	  Encoding.default_external in contrast to read(size) emits BINARY.
-	  See also: http://bugs.jruby.org/6208
+	* parse.y (yylex): non-pure parser has not been supported since
+	  merger of ripper.  change argument types from void pointers.
 
-Fri Feb 24 17:56:39 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+Fri Aug  7 17:07:56 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_literal.rb (TestRubyLiteral#test_special_const):
-	  test for https://bugs.php.net/bug.php?id=61095
+	* proc.c (method_super_method): uncallable method entry does not
+	  have the defined class, use the owner instead.
+	  [ruby-core:70254] [Bug #11419]
 
-Fri Feb 24 16:48:29 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/test_method.rb (test_super_method_unbound): add test
+	  by Akira Matsuda.
 
-	* dir.c, file.c, io.c (rb_sys_fail_path): use rb_sys_fail_str.
+Thu Aug  6 10:49:57 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* error.c: new functions to deal exceptions with string instances.
+	* node.c (rb_alloc_tmp_buffer): round up the size and check the
+	  range.
 
-	* dir.c, file.c, io.c: use rb_sys_fail_path.
+	* ruby_atomic.h (ATOMIC_VALUE_EXCHANGE, ATOMIC_VALUE_CAS): add
+	  atomic operations for VALUE.
 
-Fri Feb 24 15:49:07 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Aug  6 08:15:49 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-	* configure.in (__builtin_unreachable): check for clang.
-	  [ruby-core:42849]
+	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): move
+	  SSLSocket#sysclose to Ruby.
 
-	* include/ruby/ruby.h (UNREACHABLE): fallback definition.
+	* ext/openssl/ossl_ssl.c (ossl_ssl_close): ditto
 
-Fri Feb 24 13:54:33 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+Thu Aug  6 07:57:21 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-	* ext/psych/parser.c: prevent a memory leak by protecting calls to
-	  handler callbacks.
-	* test/psych/test_parser.rb: test to demonstrate leak.
+	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): move nonblock
+	  enable to SSLSocket#initialize and remove Nonblock module.
 
-Fri Feb 24 12:07:34 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+Thu Aug  6 07:53:47 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-	* lib/net/http.rb: Fix documentation. Patched from Florian Mhun
-	  via http://github.com/ruby/ruby/pull/96
+	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): move
+	  OpenSSL::SSL::SSLSocket#initialize to Ruby.
 
-Fri Feb 24 11:48:07 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* ext/openssl/ossl_ssl.c: ditto
 
-	* string.c (rb_str_prepend): Fix documentation for String#prepend.
-	  Patched from Franck Verrot via http://github.com/ruby/ruby/pull/98
-	  and Andrew Horsman via http://github.com/ruby/ruby/pull/55
+Thu Aug  6 02:25:31 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Feb 24 10:08:33 2012  Eric Hodel  <drbrain@segment7.net>
+	* node.c (rb_alloc_tmp_buffer): use NODE_ALLOCA to mark locations
+	  like as builtin alloca.  [ruby-core:70251] [Bug #11418]
 
-	* lib/net/http.rb (Net::HTTP#transport_request):  Fix infinite loop
-	  upon EOFError or Errno::ECONNRESET where count is reset to 0.
-	* test/net/http/test_http.rb (class TestNetHTTPKeepAlive):  Test for
-	  above.
+Wed Aug  5 14:37:55 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Feb 24 09:05:40 2012  Eric Hodel  <drbrain@segment7.net>
+	* transcode.c (rb_econv_open0): rb_econv_t::source_encoding_name
+	  and rb_econv_t::destination_encoding_name should refer static
+	  strings always or NULL.  [ruby-core:70247] [Bug #11416]
 
-	* complex.c (Init_Complex):  Document Complex::I.  Patch by Sylvain
-	  Daubert.  [Feature #5623]
+Tue Aug  4 16:53:43 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-Fri Feb 24 08:52:09 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): extract callback
+	  lookup to private Ruby methods. This means we can keep the default
+	  DH callback logic hidden from consumers.  Also, since the SSLSocket
+	  always has a context, we can remove conditionals about that
+	  instance.
 
-	* parse.y (parser_tokadd_string, parser_yylex): insert a backslash
-	  if the next character is non-ascii.  [ruby-dev:45278] [Bug #6069]
+	* ext/openssl/ossl_ssl.c: move callback lookup methods to private Ruby
+	  methods.
 
-Fri Feb 24 08:13:20 2012  Eric Hodel  <drbrain@segment7.net>
+Tue Aug  4 16:40:26 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/profiler.rb:  Add Profiler documentation by Gonzalo Rodriguez.
-	  [Bug #5816]
+	* test/ruby/test_module.rb: should not expect a method table ordering.
+	  [Feature #11414]
 
-Fri Feb 24 08:08:38 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+Tue Aug 04 15:30:04 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/psych/parser.c: set parser encoding based on the YAML input
-	  rather than user configuration.
-	* test/psych/test_encoding.rb: corresponding tests.
-	* test/psych/test_parser.rb: ditto
-	* test/psych/test_tainted.rb: ditto
+	* proc.c (rb_block_clear_env_self): clear by Qfalse instead of Qnil.
+	  [Bug #11409]
 
-Fri Feb 24 08:02:52 2012  Eric Hodel  <drbrain@segment7.net>
+	* test/ruby/test_eval.rb: add tests for this issue,
+	  written by @0x0dea.
+	  https://github.com/ruby/ruby/pull/988
 
-	* hash.c (Init_Hash):  Add section on how objects are used as Hash keys
-	  and how to use custom classes as Hash keys.
+Tue Aug  4 12:12:14 2015  Eric Wong  <e@80x24.org>
 
-Fri Feb 24 07:36:11 2012  Eric Hodel  <drbrain@segment7.net>
+	* variable.c: wrap long lines
 
-	* object.c (rb_obj_eql):  Improve equality documentation by adding an
-	  example of equal? vs == and recommending eql? be aliased to == when
-	  overridden.
+Tue Aug  4 09:32:30 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Fri Feb 24 07:21:15 2012  Eric Hodel  <drbrain@segment7.net>
+	* proc.c: Removing duplicate doc [fix GH-987][ci skip]
+	  Patch by @ronakjangir47
 
-	* object.c (rb_obj_hash):  Added note that the hash value is not
-	  deterministic on Marc-Andre's suggestion.  Expanded description of
-	  the purpose of the hash method.  [Bug #6068]
+Tue Aug  4 09:21:58 2015  Richard Schneeman  <richard.schneeman+foo@gmail.com>
 
-Thu Feb 23 23:01:21 2012  Tanaka Akira  <akr@fsij.org>
+	* doc/contributing.rdoc: fixed wrong instructions with OS X
+	  [fix GH-989][ci skip] Patch by @schneems
 
-	* ext/dbm/extconf.rb: unused macro removed.
+Mon Aug  3 10:08:33 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Feb 23 22:26:53 2012  Tanaka Akira  <akr@fsij.org>
+	* re.c (rb_memsearch): should match only char boundaries in wide
+	  character encodings.  [ruby-core:70220] [Bug #11413]
 
-	* test/test_curses.rb: new file.
+Sun Aug  2 07:01:17 2015  Eric Wong  <e@80x24.org>
 
-Thu Feb 23 19:57:56 2012  Tanaka Akira  <akr@fsij.org>
+	* ext/openssl/lib/openssl/buffering.rb (gets):
+	  avoid comparing fixnum with nil
+	* test/openssl/test_pair.rb: test gets with limit when EOF is hit
+	  Thanks to Bar Hofesh <bar.hofesh@safe-t.com> for the bug report
+	  and testing.
+	  [ruby-core:70149] [Bug #11400]
 
-	* ext/curses/rain.rb: trap SIGHUP, SIGINT, SIGQUIT and SIGTERM only.
+Sat Aug  1 17:13:15 2015  Kazuki Tsujimoto  <kazuki@callcc.net>
 
-Thu Feb 23 19:56:48 2012  Tanaka Akira  <akr@fsij.org>
+	* lib/net/http/response.rb (Net::HTTPResponse::Inflater#finish):
+	  fix a bug that empty gzipped response body causes Zlib::BufError.
+	  [ruby-core:68846] [Bug #11058]
 
-	* signal.c (sig_trap): show signal name on error.
+	* test/net/http/test_httpresponse.rb: tests for the above.
 
-Thu Feb 23 12:21:48 2012  Tanaka Akira  <akr@fsij.org>
+Sat Aug  1 17:05:18 2015  Kazuki Tsujimoto  <kazuki@callcc.net>
 
-	* ext/dbm/extconf.rb: use DBM_SUFFIX only to detect header of
-	  Berkeley DB.
+	* lib/net/http/response.rb (Net::HTTPResponse#inflater):
+	  fix TypeError. An exception object might be nil.
+	  [ruby-core:68846] [Bug #11058]
 
-Thu Feb 23 10:00:18 2012  Eric Hodel  <drbrain@segment7.net>
+Sat Aug  1 09:09:46 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-	* io.c (rb_io_f_sync):  Fix double-negative typo.  [ruby-trunk - #5837]
+	* ext/openssl/ossl_ssl.c (ossl_sslctx_setup): Implement
+	  SSLContext#options and options= using SSL_CTX_set_options and
+	  SSL_CTX_get_options. This reduces the number of ivars we need and
+	  simplifies `ossl_sslctx_setup`.
 
-Thu Feb 23 09:57:21 2012  Eric Hodel  <drbrain@segment7.net>
+	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): Default `options`
+	  to SSL_OP_ALL
 
-	* load.c (rb_f_require):  Add note to require for scope of items in the
-	  loaded file.  [ruby-trunk - #5910]
+Sat Aug  1 06:54:36 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-Thu Feb 23 03:58:08 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* ext/openssl/ossl_ssl.c (Init_ossl_ssl): OpenSSL declares these
+	  constants as longs, so we should follow that and use LONG2NUM.
+	  http://git.io/vOqxD
 
-	* lib/ostruct.rb (delete_field): Bug fix so previous value is
-	  returned. Patch by Nick Recobra [Bug #6063]
+Sat Aug  1 04:06:29 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-Thu Feb 23 02:33:00 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/ossl_ssl.c (ossl_call_tmp_dh_callback): change callback
+	  to return the Ruby dh (or ecdh) object that the caller cares about
+	  instead of doing rb_iv_get / set to communicate.  This means we can
+	  remove an rb_iv_get call, and only use the set calls for their
+	  intended purpose (to prevent the object from being GC'd).
 
-	* io.c (rb_io_extract_modeenc): fail only if conflicting
-	  text/binary modes given explicitly.  [ruby-dev:45268][Bug #6055]
+	* ext/openssl/ossl_ssl.c (ossl_tmp_dh_callback): ditto
+	* ext/openssl/ossl_ssl.c (ossl_call_tmp_ecdh_callback): ditto
+	* ext/openssl/ossl_ssl.c (ossl_tmp_ecdh_callback): ditto
 
-Wed Feb 22 23:27:08 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Aug  1 03:49:31 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-	* test/iconv/test_option.rb: enabled.  [ruby-core:42802][Bug #6061]
+	* ext/openssl/ossl_ssl.c (ossl_call_tmp_dh_callback): Similarly to the
+	  tmp_ecdh_callback, the SSLSocket instance always holds a reference
+	  to the SSLContext object (it's always set in `initialize`).  The
+	  SSLContext holds a reference to the tmp_dh_callback.  Ask the
+	  context for the callback instead of storing the callback in two
+	  places.
 
-Wed Feb 22 21:45:56 2012  Tanaka Akira  <akr@fsij.org>
+Sat Aug  1 03:43:10 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-	* ext/curses/curses.c: use defined() to suppress a warning.
+	* ext/openssl/ossl_ssl.c (ossl_call_tmp_dh_callback): create an array
+	  and use `rb_apply` to clean up calls to `rb_protect`.
 
-Wed Feb 22 21:44:29 2012  Tanaka Akira  <akr@fsij.org>
+	* ext/openssl/ossl_ssl.c (ossl_tmp_dh_callback): ditto
 
-	* ext/curses/extconf.rb: refactored.
+Sat Aug  1 03:27:12 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-Wed Feb 22 20:42:28 2012  Tanaka Akira  <akr@fsij.org>
+	* ext/openssl/ossl_ssl.c (ossl_call_tmp_ecdh_callback): The SSL socket
+	  always holds a reference to the SSLContext object, which will have
+	  the callback object.  Ask the context for the callback instead of
+	  storing the callback in two places.
 
-	* ext/curses/extconf.rb: try to distinguish curses_version is a
-	  function or variable.
+Sat Aug  1 03:14:07 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-	* ext/curses/curses.c (Init_curses): refine Curses::VERSION.
+	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): convert
+	  `tmp_dh_callback` to Ruby, and call it when setting up an SSL
+	  connection.  This allows us to move the "default" behavior to the
+	  reader method.
 
-Wed Feb 22 19:47:03 2012  Tanaka Akira  <akr@fsij.org>
+	* ext/openssl/ossl_ssl.c: call the tmp_dh_callback instead of
+	  accessing the SSLContext's internals.
 
-	* ext/curses/extconf.rb: show the chosen header and library.
+Fri Jul 31 23:34:27 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-Wed Feb 22 19:22:31 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+	* .travis.yml: update libssl before running tests.
+	  Thanks to Chris Sinjakli <chris@sinjakli.co.uk> for figuring out the
+	  travis settings!
 
-	* reverted 34739 for test/date.
+Fri Jul 31 21:34:49 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Feb 22 19:08:55 2012  Tanaka Akira  <akr@fsij.org>
+	* load.c (rb_require_internal): use rb_load_internal0 not to raise
+	  a exception to be caught.
 
-	* ext/curses/extconf.rb: refactored.
+Thu Jul 30 13:19:54 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Feb 22 18:44:41 2012  Shota Fukumori  <sorah@tubusu.net>
+	* variable.c (rb_const_get_0): warn deprecated constant reference.
 
-	* lib/test/unit.rb (setup_options): add option "--retry" as opposite
-	  for "--no-retry"
+	* variable.c (rb_mod_deprecate_constant): mark constants to be
+	  warned as deprecated.  [Feature #11398]
 
-Wed Feb 22 18:34:02 2012  Shota Fukumori  <sorah@tubusu.net>
+Thu Jul 30 11:53:54 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/test/unit.rb (setup_options): add option "--show-skip" to
-	  cancel "--hide-skip" (-q)
+	* thread.c (rb_thread_s_handle_interrupt): make identity hash, to
+	  compare masking classes just by their IDs.
 
-Wed Feb 22 17:36:22 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Jul 30 11:52:55 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* io.c (rb_io_s_foreach): argument check before making Enumerator.
-	  [ruby-dev:31525]
+	* load.c (rb_load_internal0): stop separating exits at loading
+	  from exits from execution.  TAG_FATAL is the only case that
+	  `errinfo` is a Fixnum, and should continue to exit by JUMP_TAG
+	  but not raising as an ordinary exception.
+	  [ruby-core:70169] [Bug #11404]
 
-Wed Feb 22 17:07:35 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Jul 30 10:42:27 2015  Alex Dowad  <alexinbeijing@gmail.com>
 
-	* io.c (rb_io_s_foreach): return enumerator including keyword
-	  arguments.  [ruby-dev:45267][Bug #6054]
+	* load.c (rb_load_internal0): extra check before returning
+	  TAG_RAISE when a non-local transfer of control happens while
+	  loading and parsing a Ruby source file.
+	  [ruby-core:70169] [Bug #11404]
 
-Wed Feb 22 12:15:16 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Jul 30 08:48:42 2015  Eric Wong  <e@80x24.org>
 
-	* configure.in: allow llvm-gcc because it work fine with r34278.
+	* st.c (find_entry): constify st_table*
+	  (find_packed_index_from): ditto
+	  (find_packed_index): ditto
+	  (get_keys): ditto
+	  (get_values): ditto
 
-Wed Feb 22 10:57:08 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Jul 30 04:29:25 2015  Eric Wong  <e@80x24.org>
 
-	* regparse.c (fetch_token): don't use // comment.
+	* benchmark/bm_hash_aref_dsym.rb: new benchmark
+	* benchmark/bm_hash_aref_dsym_long.rb: ditto
+	* benchmark/bm_hash_aref_fix.rb: ditto
 
-Wed Feb 22 10:32:11 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jul 29 21:38:41 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/mkmf/test_framework.rb: try CoreFoundation framework, than
-	  Cocoa which is dependent on QuickTime SDK which has separated
-	  since Xcode 4.3.
+	* hash.c (any_hash), symbol.c (dsymbol_alloc): fix dynamic symbol
+	  hash value by restricting in Fixnum range, that is `long`.
 
-Wed Feb 22 10:18:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jul 29 17:25:46 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* common.mk (test-all, test-ruby): more dependencies.
+	* hash.c (rb_obj_hash): move in order to share with rb_any_hash.
 
-Wed Feb 22 06:48:55 2012  Eric Hodel  <drbrain@segment7.net>
+Wed Jul 29 16:00:22 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* file.c (rb_f_test):  Fix formatting of Kernel#test rdoc.
+	* string.c (str_buf_cat): consider empty non-embed string case,
+	  not to loop infinitely.  [ruby-core:70074] [Bug #11383]
 
-Wed Feb 22 06:12:15 2012  Tanaka Akira  <akr@fsij.org>
+Wed Jul 29 15:25:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/dbm/extconf.rb: check DBM_SUFFIX for Mac OS X.
-	  Its ndbm.h doesn't include db.h.
+	* vm_eval.c (send_internal): set method_missing_reason before
+	  invoking overriding method_missing method so that the default
+	  method_missing can achieve it properly.
+	  [ruby-core:68515] [Bug #10969]
 
-Wed Feb 22 06:02:42 2012  Tanaka Akira  <akr@fsij.org>
+Wed Jul 29 14:54:16 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/dbm/dbm.c (fdbm_initialize): disable Berkeley DB error messages.
+	* hash.c (rb_sym_hash): return same value as rb_any_hash() of
+	  Symbol.  [Bug #9381]
 
-	* ext/dbm/extconf.rb: check DBC type for above.
+	* hash.c (rb_any_hash): fix Float hash.  rb_dbl_hash() returns a
+	  Fixnum, but not a long.  [Bug #9381]
 
-	[ruby-dev:45269]
+Wed Jul 29 11:07:10 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Feb 21 20:23:47 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* internal.h (LIKELY, UNLIKELY): make a boolean to enforce 1 or 0.
 
-	* hash.c (rb_any_hash): treat Qundef like as other special constants.
+Wed Jul 29 10:44:43 2015  Alex Dowad  <alexinbeijing@gmail.com>
 
-	* hash.c (hash_foreach_iter): fix signature.
+	* gc.c: document argument passed to finalizer proc.
+	  [fix GH-976][ci skip] Patch by @alexdowad
 
-Tue Feb 21 19:39:34 2012  Tanaka Akira  <akr@fsij.org>
+Wed Jul 29 10:36:58 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* ext/curses/curses.c (Init_curses): use curses_version() for
-	  Curses::VERSION.
+	* io.c (rb_io_extract_modeenc): add option parameter `flags'
+	  to append extra oflags to normal mode.
+	  [Feature #11253] [ruby-core:69539]
 
-Tue Feb 21 18:21:25 2012  Narihiro Nakamura  <authornari@gmail.com>
+Wed Jul 29 04:54:47 2015  Eric Wong  <e@80x24.org>
 
-	* gc.c : remove gc_clear_mark_on_sweep_slots() and use
-	  rest_sweep() instead of it, because some dead objects might be
-	  marked in next the mark phase by false pointers.
-	  [ruby-core:42672]
+	* test/rubygems/test_gem_remote_fetcher.rb: pre-generate test key
+	  [ruby-core:70151] [Bug #11397]
 
-Tue Feb 21 16:08:17 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jul 28 10:32:09 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* proc.c (rb_hash_proc): get wrapped pointer properly.  [Bug #6048]
+	* internal.h (struct RClass): moved from ruby/ruby.h to hide the
+	  internals.
 
-Tue Feb 21 14:41:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jul 28 08:48:29 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* template/ruby.pc.in: added rubylibprefix, {rubylib,vendor,site}dir
-	  and {ruby,vendor,site}archdir.  [ruby-core:42766][Feature #6052]
+	* configure.in (RUBY_TYPE_ATTRIBUTE): attribute declaration for
+	  types.
 
-Tue Feb 21 09:13:25 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+Tue Jul 28 07:23:03 2015  Eric Wong  <e@80x24.org>
 
-	* proc.c (method_hash, proc_hash): Fix {Unbound}Method#hash
-	  [Bug #6048]. Isolate hash computation for proc
+	* symbol.h (struct RSymbol): add hashval field
+	* symbol.c (dsymbol_alloc): setup hashval field once
+	* hash.c (rb_any_hash): return RSymbol->hashval directly
+	* common.mk: hash.o depends on symbol.h
+	  Thanks to Bruno Escherl <bruno@escherl.net> for the bug report
+	  [ruby-core:70129] [Bug #11396]
 
-	* internal.h: Declaration for above
+Tue Jul 28 03:26:15 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-	* vm_method.c (rb_method_definition_hash): Computation for
-	  hash part of a method definition
+	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): raise a more
+	  helpful exception when verifying the peer connection and an
+	  anonymous cipher has been selected. [ruby-core:68330] [Bug #10910]
+	  Thanks to Chris Sinjakli <chris@sinjakli.co.uk> for the patch.
 
-	* method.h: Declaration for above
+	* test/openssl/test_ssl.rb (class OpenSSL): test for change
 
-	* test/ruby/test_method.rb: Test for above
+Mon Jul 27 13:24:11 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Feb 21 02:56:15 2012  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* template/id.h.tmpl (ID2ATTRSET): remove an unused macro.
 
-	* enumerator.c (enumerator_rewind): update the documentation.
-	  fixed: #6053
+Mon Jul 27 12:21:15 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Mon Feb 20 23:38:35 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* test/openssl/test_ssl.rb: run tests on non-Unix platforms.
 
-	* enc/depend: ignore mktable.c because it's not encoding library.
-	  [ruby-core:42760] [Bug #6049]
+Sun Jul 26 19:21:31 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Feb 20 21:40:53 2012  Tanaka Akira  <akr@fsij.org>
+	* ext/openssl/ossl_ssl.c (ossl_ssl_alpn_protocol): fix condition
+	  to compile, needs ALPN to be available.  [Feature #9390]
 
-	* ext/curses/extconf.rb: fold too long lines.
+Sun Jul 26 11:29:01 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Feb 20 21:16:48 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+	* signal.c (default_handler, Init_signal): discard SIGSYS, ENOSYS
+	  should raise a SystemCallError always instead.
 
-	* lib/fileutils.rb: revert a line modified accidentally at r34669.
-	  This fixes mingw test errors in TestDir_M17N.
-	  [ruby-core:42728] [Feature #4970]
+Sun Jul 26 10:26:35 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-Mon Feb 20 21:09:27 2012  Tanaka Akira  <akr@fsij.org>
+	* ext/openssl/ossl_ssl.c (ossl_call_servername_cb): set the ssl context
+	  object returned by the servername callback on to the socket as an
+	  instance variable.  If the callback allocated a new context object
+	  and didn't keep a reference to it, it could be GC'd out from under
+	  the socket object.
 
-	* ext/curses/curses.c (Init_curses): define Curses::VERSION.
+	* test/openssl/test_ssl.rb (class OpenSSL): test for change.
 
-Mon Feb 20 21:08:00 2012  Tanaka Akira  <akr@fsij.org>
+Sun Jul 26 10:07:26 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-	* ext/curses/extconf.rb: restore $libs and $defs for each
-	  header/library choice.
+	* test/openssl/test_ssl.rb (class OpenSSL): add test coverage around
+	  OpenSSL::SSL::SSLContext#servername_cb
 
-Mon Feb 20 19:57:26 2012  Tanaka Akira  <akr@fsij.org>
+Sun Jul 26 09:10:32 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/dbm/extconf.rb: weaken header/library consistency check if db is
-	  "ndbm".  It seems several (possibly historical) distributions
-	  provide libndbm.  However the content of libndbm vary: Berkeley DB,
-	  GDBM or even 4.3BSD NDBM.  (Mandriva, Tru64 UNIX, OpenSuSE,
-	  SCO OpenServer, ...)
-	  "ndbm" is not searched automatically now (dblib doesn't contain it)
-	  but configure --with-dbm-type=ndbm choose libndbm and ndbm.h.
+	* gems/bundled_gems: update latest version of bundled power_assert.
 
-Mon Feb 20 19:15:57 2012  Tanaka Akira  <akr@fsij.org>
+Sun Jul 26 08:49:28 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/dbm/extconf.rb: refine variable names.
+	* test/rubygems/test_gem_remote_fetcher.rb: backport rubygems upstream
+	  change for OpenSSL key length. see detail to
+	  https://github.com/rubygems/rubygems/pull/1290
 
-Mon Feb 20 15:50:33 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Jul 26 08:33:03 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-	* configure.in: check if -fstack-protector is really available.
+	* ext/openssl/lib/openssl/pkey.rb: implement DEFAULT_512 and
+	  DEFAULT_1024 constants in Ruby.
 
-Sun Feb 19 23:43:38 2012  Tanaka Akira  <akr@fsij.org>
+	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): Ask PKey for the
+	  default DH callback since it already must check whether openssl has
+	  been compiled with DH support.
 
-	* ext/dbm/extconf.rb: show header and library found.
+	* ext/openssl/ossl_pkey_dh.c (OSSL_PKEY_BN): Remove C definitions of
+	  DEFAULT_512 and DEFAULT_1024
 
-Sun Feb 19 23:01:01 2012  Tanaka Akira  <akr@fsij.org>
+	* ext/openssl/ossl_pkey_dh.c (Init_ossl_dh): ditto
 
-	* ext/dbm/dbm.c (Init_dbm): refine DBM::VERSION definition.
+	* test/openssl/test_pkey_dh.rb (class OpenSSL): add test to ensure the
+	  Ruby definitions are the same as the C definitions were.
 
-	* ext/dbm/extconf.rb: provide RUBYDBM_GDBM_HEADER macro.
+Sun Jul 26 08:14:59 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-Sun Feb 19 17:07:27 2012  Tanaka Akira  <akr@fsij.org>
+	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): support
+	  specifically setting the tmp_dh_callback to nil.
 
-	* test/dbm/test_dbm.rb (test_dbmfile_suffix): check pag and dir is
-	  empty for 4.3BSD ndbm.
+	* ext/openssl/ossl_ssl.c (Init_ossl_ssl): ditto
 
-Sun Feb 19 03:00:30 2012  Tanaka Akira  <akr@fsij.org>
+	* test/openssl/test_pair.rb (module OpenSSL): add a test
 
-	* test/dbm/test_dbm.rb (test_dbmfile_suffix): check magic numbers.
+Sun Jul 26 07:47:14 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-Sun Feb 19 01:05:41 2012  Tanaka Akira  <akr@fsij.org>
+	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): move the default
+	  tmp_dh_callback Ruby code and set it as a default in `initialize`.
 
-	* ext/dbm/extconf.rb: detect GDBM's ndbm.h by testing dbm_clearerr is
-	  an empty macro.
+	* ext/openssl/ossl_pkey_dh.c (static unsigned char DEFAULT_DH_512_GEN):
+	  move this constant to Ruby.
 
-Sun Feb 19 00:25:55 2012  Tanaka Akira  <akr@fsij.org>
+	* ext/openssl/ossl_pkey_dh.c (static unsigned char DEFAULT_DH_1024_GEN):
+	  ditto
 
-	* ext/dbm/extconf.rb: don't choose 'dbm' if _GDB_H_ is defined which
-	  is available since GDBM 1.9 because 'gdbm_compat' is appropriate
-	  choice since GDBM 1.8.1.
+	* ext/openssl/ossl_pkey_dh.c (Init_ossl_dh): ditto
 
-Sat Feb 18 23:27:00 2012  Kenta Murata  <mrkn@mrkn.jp>
+	* ext/openssl/ossl_ssl.c (ossl_tmp_dh_callback): ditto
 
-	* random.c: remove a duplicated comment.
+	* ext/openssl/ossl_ssl.c (ossl_sslctx_setup): tmp_dh_callback should
+	  always be set, so we can remove this conditional
 
-Sat Feb 18 18:43:13 2012  Tanaka Akira  <akr@fsij.org>
+Sun Jul 26 06:22:24 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-	* ext/dbm/extconf.rb (dblib): prefer recent GDBM over older GDBM.
-	  (have_declared_libvar): new function to check a declared variable
-	  exists in a library.
-	  (have_undeclared_libvar): renamed from renamed from have_libvar.
-	  (headers.db_check2): check that GDBM version variable if GDBM header
-	  is chosen.
+	* test/openssl/test_pair.rb: add a test ensuring that the default DH
+	  callback is used when no DH callback is specified.
 
-	* ext/dbm/dbm.c (Init_dbm): use HAVE_DECLARED_LIBVAR_GDBM_VERSION and
-	  HAVE_UNDECLARED_LIBVAR_GDBM_VERSION macro.
+Sun Jul 26 04:08:27 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-Sat Feb 18 13:53:01 2012  Tanaka Akira  <akr@fsij.org>
+	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): add missing
+	  instance variables to squash warnings with alpn.
 
-	* test/dbm/test_dbm.rb (test_dbmfile_suffix): DBM::VERSION should
-	  be Berkeley DB if foo.db is created by DBM.open.
+Sun Jul 26 03:42:19 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-Sat Feb 18 13:40:37 2012  Tanaka Akira  <akr@fsij.org>
+	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): move
+	  OpenSSL::SSL::SSLContext#initialize implementation to pure Ruby.
 
-	* test/dbm/test_dbm.rb (test_dbmfile_suffix): test dbm file suffix.
+	* ext/openssl/ossl_ssl.c (ossl_sslctx_initialize): ditto
 
-Sat Feb 18 12:50:59 2012  Tanaka Akira  <akr@fsij.org>
+	* ext/openssl/ossl_ssl.c (Init_ossl_ssl): ditto
 
-	* ext/dbm/dbm.c (DBM::VERSION): define it by detecting _GDBM_H_ or
-	  _DBM_IOERR.
+Sat Jul 25 21:03:45 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Feb 18 07:52:45 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* random.c (fill_random_bytes_syscall): get rid of blocking when
+	  no entropy is available.  based on the patch by mame in
+	  [ruby-core:70114].  [Bug #11395]
 
-	* tool/enc-unicode.rb: don't use 1.9 feature on tools.
+Sat Jul 25 11:05:31 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Feb 18 02:48:39 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+	* string.c (str_replace_shared_without_enc): fill the terminator
+	  of embedded strings in wide char encodings.
 
-	* lib/fileutils.rb: refactored FileUtil methods to use the
-	  `define_command` API.  Patch from 7rans <transfire@gmail.com>
-	* test/fileutils/test_dryrun.rb: corresponding test refactoring
-	* test/fileutils/test_nowrite.rb: ditto
-	* test/fileutils/test_verbose.rb: ditto
+Sat Jul 25 06:38:36 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Feb 17 21:39:36 2012  Tanaka Akira  <akr@fsij.org>
+	* vm_core.h: size should be unsigned.
+	  * rb_call_info_t::index
+	  * rb_iseq_constant_body::stack_max
+	  * rb_iseq_constant_body::local_size
+	  * rb_iseq_constant_body::param::size
+	  * rb_iseq_constant_body::local_table_size
+	  * rb_iseq_constant_body::is_size
+	  * rb_iseq_constant_body::callinfo_size
 
-	* ext/dbm/extconf.rb: remove dbm.
+	* iseq.h: same for iseq_catch_table::size.
 
-Fri Feb 17 21:18:39 2012  Tanaka Akira  <akr@fsij.org>
+	* compile.c: catch up these fix.
 
-	* ext/dbm/extconf.rb: refine header/library mismatch detection.
-	  check only for ndbm.h except libc.  check _GDBM_H_ for gdbm.
-	  check _DBM_IOERR for the original ndbm.
+	* iseq.c: ditto.
 
-Fri Feb 17 20:30:44 2012  Tanaka Akira  <akr@fsij.org>
+	* proc.c: ditto.
 
-	* ext/dbm/extconf.rb: don't check libdbm.  It is not a ndbm
-	  implementation.  (libdbm in Version 7 Unix is database library
-	  for single database per process.)
+	* vm.c: ditto.
 
-Fri Feb 17 15:38:53 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* vm_args.c: ditto.
 
-	* Merge Onigmo-5.13.1. [ruby-dev:45057] [Feature #5820]
-	  https://github.com/k-takata/Onigmo
-	  cp reg{comp,enc,error,exec,parse,syntax}.c reg{enc,int,parse}.h
-	  cp oniguruma.h
-	  cp tool/enc-unicode.rb
-	  cp -r enc/
+	* vm_eval.c: ditto.
 
-Fri Feb 17 15:20:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_insnhelper.c: ditto.
 
-	* enum.c (enum_each_slice): arrays to be yielded can be newly
-	  created in the block.
+Sat Jul 25 06:00:09 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* enum.c: move work variables to objects not to let called blocks
-	  access stack area out of scope.  [Bug #5801]
+	* vm_core.h: constify rb_iseq_constant_body::line_info_table.
 
-Fri Feb 17 12:35:55 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* iseq.c: catch up this fix.
 
-	* tool/merger.rb: remove borders from the commit message which is used
-	  when the commit doesn't change ChangeLog.
+Sat Jul 25 05:56:43 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Feb 17 11:50:11 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_core.h: constify rb_iseq_constant_body::param::opt_table and
+	  rb_iseq_constant_body::param::keyword.
 
-	* common.mk (btest, btest-ruby, test-sample test-knownbugs)
-	  (test-all, test-ruby): depend on prog.
+	* compile.c: catch up this fix.
 
-Fri Feb 17 09:56:22 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Jul 25 04:47:01 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/mkmf.rb (create_header): log the content of header.
+	* vm_core.h: constify rb_iseq_constant_body::catch_table.
 
-Fri Feb 17 09:44:55 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* compile.c (iseq_set_exception_table): catch up this fix.
 
-	* tool/transcode-tblgen.rb (import_ucm): don't use \h because the
-	  script should work with ruby 1.8.
+	* iseq.c: ditto.
 
-	* tool/enc-unicode.rb: ditto.
+	* vm.c (vm_exec): ditto.
 
-Fri Feb 17 07:33:29 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jul 24 21:29:54 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* enum.c (id_lshift): use constant ID.
+	* st.c (EQUAL, st_delete_safe): fix arguments order to compare
+	  function, searching key is the first and stored key is the
+	  second always.
 
-Fri Feb 17 07:30:53 2012  Tanaka Akira  <akr@fsij.org>
+Fri Jul 24 21:27:29 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/dbm/extconf.rb: refactored to split too long conditions.
+	* string.c (fstr_update_callback): fstring must not be a shared
+	  string, or the content without RSTRING_FSTR may be freed.
+	  [ruby-dev:49188] [Bug #11386]
 
-Fri Feb 17 00:23:25 2012  Tanaka Akira  <akr@fsij.org>
+Fri Jul 24 20:09:43 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* test/dbm/test_dbm.rb: fix skip condition for libgdbm 1.8.0 or prior.
-	  reported by Bohuslav Kabrda.
-	  [ruby-core:42685] [ruby-trunk - Bug #6036]
+	* test/rinda/test_rinda.rb (RingIPv6#prepare_ipv6): prevent to use
+	  IPv6 loopback interface for
+	  Rinda::TestRingFinger#test_make_socket_ipv6_multicast and
+	  Rinda::TestRingFinger#test_make_socket_ipv6_multicast_hops.
+	  The tests are skipped if there are no IPv6 devices other than the
+	  loopback device. [Bug #11394] [ruby-dev:49199]
 
-Fri Feb 17 00:04:21 2012  Tanaka Akira  <akr@fsij.org>
+	* test/rinda/test_rinda.rb (test_make_socket_ipv6_multicast): ditto
+	  for Rinda::TestRingServer#test_make_socket_ipv6_multicast.
 
-	* ext/dbm/extconf.rb: check _DB_H_ macro unavailable except
-	  Berkeley DB library.
+	* test/rinda/test_rinda.rb (test_ring_server_ipv6_multicast): ditto
+	  for Rinda::TestRingServer#test_ring_server_ipv6_multicast.
 
-Thu Feb 16 05:41:35 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jul 24 16:35:55 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* insns.def (splatarray): make new array if flag is set.
+	* string.c (fstr_update_callback): pool bare strings only.
 
-	* compile.c (iseq_compile_each): make new array with
-	  splat. [ruby-core:21901][Feature #1125]
+	* string.c (rb_fstring): return the original string with sharing a
+	  fstring if it has extra attributes, not the fstring itself.
+	  [ruby-dev:49188] [Bug #11386]
 
-Thu Feb 16 00:14:04 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+Fri Jul 24 16:35:34 2015  yui-knk  <spiketeika@gmail.com>
 
-	* lib/abbrev.rb (Array#abbrev): add missing '"' in documentation.
+	* file.c (rb_file_s_extname): [DOC] add an example.
 
-Wed Feb 15 22:20:19 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* test/ruby/test_path.rb (test_extname): add tests.  [Fix GH-978]
+	  * path starts with dot ('.a.rb')
+	  * path includes dir name ('a/b/d/test.rb')
+	  * path includes dir name and dir name starts with dot
+	    ('.a/b/d/test.rb')
 
-	* cont.c (rb_fiber_reset_root_local_storage): add a new function to
-	  restore rb_thread_t::local_storage.
+Thu Jul 23 18:50:43 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* cont.c (rb_obj_is_fiber): add a new function to tell finalizer to
-	  prevent fibers from destroy.
+	* vm_core.h: constify rb_iseq_constant_body::local_table and
+	  rb_iseq_param_keyword::table and
+	  rb_iseq_param_keyword::default_values.
 
-	* gc.c (rb_objspace_call_finalizer): don't sweep fibers at finalizing
-	  objspace.
+	* compile.c: catch up this fix.
 
-	* internal.h (rb_fiber_reset_root_local_storage, rb_obj_is_fiber):
-	  add prototypes.
+	* iseq.c: ditto.
 
-	* vm.c (ruby_vm_destruct): reset main thread's local_storage before
-	  free main thread. rb_thread_t::local_storage is replaced by fiber's
-	  local storage when forked from fiber, and it should be already freed
-	  when the fiber was destroyed. [ruby-core:41456] [Bug #5700]
+Thu Jul 23 17:30:43 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* test/ruby/test_fiber.rb (test_fork_from_fiber): add test for fork
-	  from fiber.
+	* vm_core.h: constify rb_iseq_constant_body::iseq_encoded and
+	  rb_control_frame_t::pc.
 
-Wed Feb 15 19:57:02 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* compile.c (rb_iseq_translate_threaded_code): catch up this fix.
 
-	* ext/fiddle/closure.c (callback): deal with unsigned integers.
-	  [ruby-core:42458][Bug #5991][Bug #6022]
+	* iseq.c: ditto.
 
-	* ext/fiddle/conversions.c (value_to_generic, generic_to_value):
-	  ditto.
+	* vm_exec.c (vm_exec_core): ditto.
 
-	* ext/fiddle/closure.c (callback): same as r34506.
+Thu Jul 23 10:25:46 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Feb 15 17:41:31 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* include/ruby/ruby.h: add raw FL macros, which assume always the
+	  argument object is not a special constant.
 
-	* io.c (io_strsetbuf): call rb_str_modify to make str independent
-	  before calling rb_str_set_len for r34580.
+	* internal.h (STR_EMBED_P, STR_SHARED_P): valid only for T_STRING.
 
-Wed Feb 15 12:30:10 2012  Eric Hodel  <drbrain@segment7.net>
+	* string.c: deal with taint flags directly across String instances.
 
-	* ext/zlib/zlib.c (Init_zlib):  Added Zlib::TEXT and note that
-	  Zlib::ASCII is deprecated in zlib 1.2.3 and newer.
+Thu Jul 23 09:05:28 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Feb 15 12:24:40 2012  Eric Hodel  <drbrain@segment7.net>
+	* parse.y (lambda_body): pop cmdarg stack for lookahead
+	  token.  [ruby-core:70067] [Bug #11380]
 
-	* ext/zlib/zlib.c:  Move constant descriptions to constants.  Remove
-	  extra comment block at the top of Init_zlib().
+Thu Jul 23 04:03:03 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-Wed Feb 15 12:30:46 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* ext/openssl/ossl_ssl.c: fix tests by not setting the instance
+	  variable on the frozen ssl instance.
 
-	* lib/ostruct.rb: Create getters and setters after dup.
-	  [Bug #6028] [rubyspecs:0380bcc]
+Thu Jul 23 03:32:26 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-Wed Feb 15 10:59:52 2012  Narihiro Nakamura  <authornari@gmail.com>
+	* ext/openssl/ossl_ssl.c: add ECDH callback support. [Feature #11356]
 
-	* gc.c (HEAP_BITMAP_LIMIT): HEAP_BITMAP_LIMIT is computed on the
-	  basis of HEAP_SIZE because it must covers a whole heap block.
-	  [ruby-trunk - Bug #6006]
+	* test/openssl/test_pair.rb: test for ECDH callback support
 
-Wed Feb 15 09:27:45 2012  Eric Hodel  <drbrain@segment7.net>
+Thu Jul 23 03:29:49 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-	* ext/zlib/zlib.c (Init_zlib):  Added Zlib::FIXED and Zlib::RLE
-	  strategies.
-	* NEWS:  Add note about the new Zlib constants.
+	* ext/openssl/ossl_ssl.c: add ALPN support. [Feature #9390]
 
-Wed Feb 15 09:11:36 2012  Eric Hodel  <drbrain@segment7.net>
+	* ext/openssl/extconf.rb: detect ALPN support in OpenSSL
 
-	* ext/zlib/zlib.c:  Improve documentation.  [ruby-trunk - Bug #5948]
+	* test/openssl/test_ssl.rb: test for ALPN
 
-Wed Feb 15 07:28:54 2012  Eric Hodel  <drbrain@segment7.net>
+Wed Jul 22 23:44:17 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* encoding.c (Init_Encoding):  Add IO example of internal and external
-	  encoding.  Fixed a typo in the force_encoding example.  [#5949]
+	* string.c (rb_str_reverse): reversed string is not a substring,
+	  and should not set coderange of the original string.
+	  [ruby-dev:49189] [Bug #11387]
 
-Wed Feb 15 06:58:21 2012  Eric Hodel  <drbrain@segment7.net>
+Wed Jul 22 20:17:51 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* encoding.c (Init_Encoding):  Add Encoding documentation.
-	  [ruby-trunk - Bug #5949]
-	* encoding.c (rb_set_default_external):  Fix typo in documentation.
+	* vm_core.h: modify layout of rb_iseq_constant_body.
 
-Tue Feb 14 20:22:11 2012  Narihiro Nakamura  <authornari@gmail.com>
+	  Move frequent accessing fields to upper part.
 
-	* gc.c (CEILDIV): rename to a appropriate name.
+Wed Jul 22 19:57:47 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Feb 14 18:07:20 2012  Narihiro Nakamura  <authornari@gmail.com>
+	* vm_core.h: remove unused declaration of
+	  iseq_compile_data_ensure_node_stack.
 
-	* gc.c (assign_heap_slot): SEGV happens cause on 64-bit platform
-	  sometime there should be `objs-=2` instead of `objs--`.
-	  [Bug #6006]
-	  patched by Sokolov Yura. https://github.com/ruby/ruby/pull/92
+Wed Jul 22 19:52:45 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Feb 14 16:00:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_core.h: separate rb_iseq_body into rb_iseq_constant_body and
+	  rb_iseq_variable_body (rb_iseq_t::variable_body).
 
-	* io.c (io_setstrbuf): cut down the buffer if longer.
+	  rb_iseq_variable_body can be modified after compilation.
 
-Tue Feb 14 15:06:37 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* compile.c: use rb_iseq_t::variable_body.
 
-	* lib/test/unit/assertions.rb (build_message): skip escaped
-	  question marks.
+	* iseq.c: ditto.
 
-Tue Feb 14 12:10:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* thread.c: ditto.
 
-	* variable.c (autoload_const_set, autoload_require): fix
-	  signatures.
+Wed Jul 22 17:50:35 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Feb 14 05:23:40 2012  Eric Hodel  <drbrain@segment7.net>
+	* lib/matrix/eigenvalue_decomposition.rb: refine code style.
+	  [fix GH-959][ci skip] Patch by @bogdanvlviv
 
-	* process.c (proc_wait):  Change typo "SystemError" to
-	  "SystemCallError".  [ruby-trunk - Bug #5962]
-	* process.c (proc_wait2):  ditto
+Wed Jul 22 15:48:47 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Feb 14 05:18:24 2012  Eric Hodel  <drbrain@segment7.net>
+	* test/ruby/test_range.rb: Add test case for Range#end with
+	  exclude_end true case. [fix GH-968] Patch by @yui-knk
 
-	* enumerator.c:  Document use of Enumerator.new for creating a lazy
-	  enumeration for filtering/chaining.  [ruby-trunk - Feature #707]
+Wed Jul 22 09:45:31 2015  Maksim Sitnikov  <sitnikovme@undev.ru>
 
-Mon Feb 13 23:01:50 2012  Akinori MUSHA  <knu@iDaemons.org>
+	* numeric.c (num_coerce): [DOC] fix doc for Numeric#coerce,
+	  missing '+'.  [Fix GH-974]
 
-	* vm_method.c (rb_method_boundp):
-	  obj.respond_to?(:a_protected_method) should return false because
-	  calling a protected method may cause NoMethodError if called
-	  from outside the class inheritance tree.  Kernel#respond_to? is
-	  mostly used to test if it is safe to call a method, so the false
-	  positive should be avoided. [ruby-dev:40461] [ruby-dev:41739]
-	  [ruby-dev:41837]
+Wed Jul 22 07:24:18 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Feb 13 21:52:06 2012  Narihiro Nakamura  <authornari@gmail.com>
+	* make rb_iseq_t T_IMEMO object (type is imemo_iseq).
 
-	* gc.c (HEAP_OBJ_LIMIT, HEAP_BITMAP_LIMIT): HEAP_OBJ_LIMIT used
-	  `sizeof(struct heaps_slot)` while heap is currently allocated
-	  with `struct heaps_header`.
-	  HEAP_BITMAP_LIMIT were calculated from
-	  `HEAP_OBJ_LIMIT/sizeof(uintptr_t)` - one Byte for each object,
-	  not one Bit. [Bug #6006]
-	  patched by Sokolov Yura. https://github.com/ruby/ruby/pull/92
+	  All contents of previous rb_iseq_t is in rb_iseq_t::body.
+	  Remove rb_iseq_t::self because rb_iseq_t is an object.
 
-Mon Feb 13 18:30:32 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  RubyVM::InstructionSequence is wrapper object points T_IMEMO/iseq.
+	  So RubyVM::ISeq.of(something) method returns different wrapper
+	  objects but they point the same T_IMEMO/iseq object.
 
-	* io.c (io_setstrbuf): defer resizing buffer string until data is
-	  read actually.
+	  This patch is big, but most of difference is replacement of
+	  iseq->xxx to iseq->body->xxx.
 
-Mon Feb 13 10:24:39 2012  Loren Segal  <lsegal@soen.ca>
+	  (previous) rb_iseq_t::compile_data is also located to
+	  rb_iseq_t::compile_data.
+	  It was moved from rb_iseq_body::compile_data.
 
-	* io.c (Init_IO): use directive hack to make ARGF documentable
-	  in other tools.  [ruby-core:42515][Bug #6007]
+	  Now rb_iseq_t has empty two pointers.
+	  I will split rb_iseq_body data into static data and dynamic data.
 
-Sun Feb 12 20:43:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* compile.c: rename some functions/macros.
+	  Now, we don't need to separate iseq and iseqval (only VALUE).
 
-	* include/ruby/ruby.h (rb_event_hook_func_t): add argument names.
+	* eval.c (ruby_exec_internal): `n' is rb_iseq_t (T_IMEMO/iseq).
 
-Sun Feb 12 16:30:23 2012  Akinori MUSHA  <knu@iDaemons.org>
+	* ext/objspace/objspace.c (count_imemo_objects): count T_IMEMO/iseq.
 
-	* tool/merger.rb (#default_merge_branch): Add support for
-	  Subversion 1.7 which adopted a whole new working directory
-	  structure.
+	* gc.c: check T_IMEMO/iseq.
 
-Sun Feb 12 15:14:41 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* internal.h: add imemo_type::imemo_iseq.
 
-	* benchmark/driver.rb: suppress unused/shadowing variable warnings.
+	* iseq.c: define RubyVM::InstructionSequence as T_OBJECT.
+	  Methods are implemented by functions named iseqw_....
 
-Sun Feb 12 03:14:40 2012  Eric Hodel  <drbrain@segment7.net>
+	* load.c (rb_load_internal0): rb_iseq_new_top() returns
+	  rb_iseq_t (T_IMEMO/iesq).
 
-	* vm_eval.c (check_funcall):  Call respond_to? with matching arity for
-	  legacy single-argument implementations.  [ruby-trunk - Bug #6000]
+	* method.h (rb_add_method_iseq): accept rb_iseq_t (T_IMEMO/iseq).
 
-Sat Feb 11 12:04:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_core.h (GetISeqPtr): removed because it is not T_DATA now.
 
-	* compile.c (defined_expr): guard the whole expression.
-	  [ruby-dev:45021][Bug#5786]
+	* vm_core.h (struct rb_iseq_body): remove padding for
+	  [Bug #10037][ruby-core:63721].
 
-Sat Feb 11 08:34:42 2012  Eric Hodel  <drbrain@segment7.net>
+Wed Jul 22 07:15:33 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/zlib/zlib.c (rb_inflate_add_dictionary):  Added
-	  Zlib::Inflate#add_dictionary to allow users to pre-specify
-	  for using during #inflate.  [ruby-trunk - Feature #5937]
+	* ext/objspace/objspace.c (total_i): no need to skip singleton classes.
 
-Sat Feb 11 08:23:02 2012  Eric Hodel  <drbrain@segment7.net>
+Wed Jul 22 06:37:54 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/zlib/zlib.c (do_inflate):  Inflate more data if buffered data
-	  exists.  Allows Zlib::Inflate#set_dictionary to work.
-	  [ruby-trunk - Bug #5929]
+	* vm_core.h: constify rb_call_info_t::kw_arg,
+	  rb_control_frame_t::iseq and rb_control_frame_t::block_iseq.
 
-Sat Feb 11 06:00:48 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* iseq.c (iseq_free): catch up this fix.
 
-	* dir.c (fnmatch): The * needs to be escaped to avoid formatting in
-	  fnmatch comment.
-	  patched by @dalton. https://github.com/ruby/ruby/pull/91
+	* vm.c: ditto.
 
-Fri Feb 10 03:41:31 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+	* vm_dump.c: ditto.
 
-	* ext/psych/parser.c: removed external encoding setter, allow parser
-	  to be reused.
-	* ext/psych/lib/psych/parser.rb: added external encoding setter.
-	* test/psych/test_parser.rb: test parser reuse
+Wed Jul 22 06:25:45 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Feb 10 01:30:41 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_core.h: constify rb_call_info_t::blockiseq and rb_block_t::iseq.
 
-	* ext/dl/dl.h (ALIGN_OF): use offsetof().
+	* vm.c, vm_insnhelper.c: catch up this fix.
 
-	* ext/dl/dl.h (DLALIGN): round up at once and get rid of overflow.
+	* iseq.c (iseq_data_to_ary): constify the first iseq parameter.
 
-Fri Feb 10 00:47:07 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_insnhelper.c (vm_make_proc_with_iseq): ditto.
 
-	* test/ruby/envutil.rb (assert_no_memory_leak): new assertion to
-	  check memory leak by invoking child ruby process and watch its
-	  memory size.
+Wed Jul 22 06:17:35 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Feb  9 23:41:44 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* method.h: constify rb_method_iseq_t::iseqptr.
 
-	* test/pathname/test_pathname.rb (test_binread): add assertion to
-	  check encoding.
+	* proc.c (rb_method_entry_min_max_arity): catch up this fix.
 
-Thu Feb  9 16:48:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_insnhelper.c (def_iseq_ptr): constify.
 
-	* ext/dl/dl.c (Init_dl): fix mangled document.
+Wed Jul 22 03:37:39 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Feb  9 16:10:34 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* gc.c (internal_object_p): Now a singleton classes appear by
+	  ObjectSpace.each_object. [Bug #11360]
 
-	* test/ruby/memory_status.rb (Memory::Win32): 64bit support.
+	* test/ruby/test_objectspace.rb: add a test about it.
 
-Thu Feb  9 16:08:55 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+Tue Jul 21 21:21:33 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/dl/lib/value.rb (DL::ValueUtil.{unsigned_value,signed_value}):
-	  currently pack/unpack does not accept "q!" and "Q!".
+	* thread.c (do_select): replace switch and goto with a loop to
+	  suppress maybe-uninitialized warnings by gcc6.
 
-Thu Feb  9 16:01:29 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* thread.c (set_unblock_function, rb_wait_for_single_fd): ditto.
 
-	* ext/fiddle/conversions.c (value_to_generic): src is not guaranteed as
-	  a Bignum if the type is LONG_LONG.  it may be a Fixnum if the value
-	  is small.
+Tue Jul 21 20:32:33 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Feb  9 11:32:36 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* test/ruby/test_range.rb: Add test for Range#hash
+	  [fix GH-969] Patch by @yui-knk
 
-	* ext/dl/lib/types.rb: Win64 support.
+Tue Jul 21 19:43:20 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Feb  9 04:12:29 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* compile.c: constify the first parameter (iseq).
+	  * iseq_add_mark_object()
+	  * iseq_add_mark_object_compile_time()
 
-	* test/pathname/test_pathname.rb: not read but binread.
-	  patched by Benoit Daloze, [ruby-core:42440] [Bug #5984]
+	* iseq.c, iseq.h (rb_iseq_add_mark_object): ditto.
 
-Wed Feb  8 22:29:59 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jul 21 16:18:48 2015  Eric Wong  <e@80x24.org>
 
-	* string.c (rb_str_modify_expand): fix memory leak.
+	* test/socket/test_nonblock.rb: increase buffer sizes
+	  to OpenBSD limits. Thanks to Jeremy Evans <code@jeremyevans.net>
+	  [ruby-core:70058]
 
-Wed Feb  8 14:06:59 2012  Hiroshi Nakamura  <nahi@ruby-lang.org>
+Tue Jul 21 16:08:53 2015  Eric Wong  <e@80x24.org>
 
-	* ext/openssl/ossl_ssl.c: Add SSL constants and allow to unset SSL
-	  option to prevent BEAST attack. See [Bug #5353].
+	* load.c (ruby_dln_librefs): make static
 
-	  In OpenSSL, OP_DONT_INSERT_EMPTY_FRAGMENTS is used to prevent
-	  TLS-CBC-IV vulnerability described at
-	  http://www.openssl.org/~bodo/tls-cbc.txt
-	  It's known issue of TLSv1/SSLv3 but it attracts lots of attention
-	  these days as BEAST attack. (CVE-2011-3389)
+Tue Jul 21 13:36:54 2015  yuuji.yaginuma  <yuuji.yaginuma@gmail.com>
 
-	  Until now ossl sets OP_ALL at SSLContext allocation and call
-	  SSL_CTX_set_options at connection.  SSL_CTX_set_options updates the
-	  value by using |= so bits set by OP_ALL cannot be unset afterwards.
+	* lib/optparse.rb (complete): [DOC] fix typo.  [Fix GH-973]
 
-	  This commit changes to call SSL_CTX_set_options only 1 time for each
-	  SSLContext. It sets the specified value if SSLContext#options= are
-	  called and sets OP_ALL if not.
+Tue Jul 21 05:20:21 2015  Eric Wong  <e@80x24.org>
 
-	  To help users to unset bits in OP_ALL, this commit also adds several
-	  constant to SSL such as
-	  OpenSSL::SSL::OP_DONT_INSERT_EMPTY_FRAGMENTS.  These constants were
-	  not exposed in Ruby because there's no way to unset bits in OP_ALL
-	  before.
+	* io.c (nogvl_wait_for_single_fd): new function for Linux
+	  (maygvl_copy_stream_wait_read): Linux-specific version
+	  (nogvl_copy_stream_wait_write): use nogvl_wait_for_single_fd
+	  [ruby-core:70051] [Feature #11377]
 
-	  Following is an example to enable 0/n split for BEAST prevention.
+Mon Jul 20 15:04:30 2015  Eric Wong  <e@80x24.org>
 
-	    ctx.options = OP_ALL & ~OP_DONT_INSERT_EMPTY_FRAGMENTS
+	* parse.y (parser_initialize): avoid redundant zero-ing
 
-	* test/openssl/test_ssl.rb: Test above option exists.
+Mon Jul 20 12:12:05 2015  Eric Wong  <e@80x24.org>
 
-Wed Feb 8 13:12:02 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* parse.y (struct parser_params): pack: 88 => 256 bytes on 64-bit
+	  [ruby-core:70034] [Feature #11371]
 
-	* ext/openssl/ossl_x509name.c: Use the numerical representation of
-	  unrecognized OIDs instead of the sn "UNDEF".
+Sun Jul 19 14:29:18 2015  windwiny  <windwiny.ubt@gmail.com>
 
-	* test/openssl/test_x509name.rb: Add tests for the fixed behavior.
+	* ext/pty/pty.c: [DOC] fix example typo, an old name at move from
+	  PTY.open.  [Fix GH-972]
 
-	  Patch provided by Paul Kehrer, thank you!
-	  [ruby-core:41769] [Feature #5787]
+Sat Jul 18 21:29:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Feb  8 09:49:58 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* thread.c (vm_check_ints_blocking): gather common statements at
+	  the end, and prefer LIKELY for Visual C optimization.
 
-	* tool/merger.rb: don't abort, update first.
+Sat Jul 18 20:44:56 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Feb 8 09:47:33 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* load.c (rb_load_internal0): do not raise any exceptions but
+	  return the result tag state.
 
-	* ext/openssl/ossl_asn1.c: Call INT2NUM only once for GeneralString.
-	  Thanks to Mantas Mikulenas for noticing and providing a patch!
-	  [ruby-core:42358] [Bug #5972]
+	* load.c (rb_load_protect): reduce nested EXEC_TAGs.
 
-Wed Feb 8 09:19:00 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+Sat Jul 18 19:52:17 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/openssl/ossl_cipher.c: Add warning about key as IV.
+	* gc.c (run_finalizer): set and restore safe level here to reduce
+	  nested EXEC_TAGs.
 
-Tue Feb  7 20:08:12 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+Sat Jul 18 18:45:22 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* error.c (exc_inspect): Fix typo. patch from Trent Ogren
-	  via https://github.com/ruby/ruby/pull/90
+	* eval.c (ruby_cleanup): error_handle() returns exit status to the
+	  system, not internal error state, do not convert the exit status
+	  again.
 
-Tue Feb  7 19:37:35 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Jul 18 10:29:03 2015  Eric Wong  <e@80x24.org>
 
-	* st.c: refactor packed entries using structs.
+	* test/ruby/test_process.rb: test thread+sigs work after failed exec
 
-Tue Feb  7 14:52:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Jul 18 07:20:18 2015  Jeremy Evans  <code@jeremyevans.net>
 
-	* st.c (st_update): table can be unpacked in the callback.
+	* test/socket/test_nonblock: use smaller buffer for sendmsg
+	  [ruby-core:70016] [Bug #11364]
 
-	* st.c (st_foreach): should not yield same pair when checking
-	  after unpacking.
+Sat Jul 18 07:04:24 2015  Eric Wong  <e@80x24.org>
 
-Mon Feb  6 21:55:13 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* signal.c (trap_handler): cleanup to use RSTRING_GETMEM + memcmp
 
-	* tool/merger.rb: abort if the working directory is dirty.
+Sat Jul 18 02:53:06 2015  Eric Wong  <e@80x24.org>
 
-	* tool/merger.rb: update the working directory after commit.
+	* io.c (argf_read_nonblock): support `exception: false'
+	  (io_nonblock_eof): new function
+	  (io_read_nonblock): use io_nonblock_eof
+	  (argf_getpartial): accept kwargs hash for `exception: false'
+	* test/ruby/test_argf.rb (test_read_nonblock): new test
+	* NEWS: add item for ARGF.read_nonblock
+	  [ruby-core:70000] [Feature #11358]
 
-Mon Feb  6 00:16:27 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Fri Jul 17 23:51:31 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* encoding.c (rb_enc_compatible): return ASCII-8BIT even if 2nd string
-	  is ascii only string. [ruby-core:42354] [Bug #5968]
+	* vm_eval.c (rb_eval_cmd): $SAFE=4 has been deprecated.
 
-Fri Feb  3 07:16:47 2012  Eric Hodel  <drbrain@segment7.net>
+Fri Jul 17 22:18:09 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/webrick.rb:  Moved proxy rewriting to WEBrick::HTTPProxy.
-	* lib/webrick/httpproxy.rb:  Add examples of creating a proxy server
-	  and response rewriting using HTTPProxy.
+	* compile.c (iseq_compile_each): use enum ruby_tag_type names.
 
-Fri Feb  3 06:53:22 2012  Eric Hodel  <drbrain@segment7.net>
+	* vm_core.h (ruby_tag_type): move from eval_intern.h for compiling
+	  break/next/redo/return.
 
-	* ext/openssl/ossl_x509store.c:  Add class documentation for
-	  OpenSSL::X509::Store
+Fri Jul 17 15:39:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Feb  2 22:28:13 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	* include/ruby/encoding.h (ENC_CODERANGE_CLEAN_P): predicate that
+	  tells if the coderange is clean, that is 7bit or valid, and no
+	  needs to scrub.
 
-	* test/net/http/test_https_proxy.rb
-	  (HTTPSProxyTest#test_https_proxy_authentication):
-	  add workaround to avoid to hang up without openssl.
-	  see [ruby-dev:45021][Bug #5786]
+	* re.c (rb_reg_expr_str): use ENC_CODERANGE_CLEAN_P.
 
-	* test/resolv/test_dns.rb (TestResolvDNS#test_query_ipv4_address):
+	* string.c (enc_strlen, rb_enc_cr_str_buf_cat, rb_str_scrub):
 	  ditto.
 
-Thu Feb  2 21:48:18 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rexml/parsers/baseparser.rb: use meaningful names.
-
-Thu Feb  2 21:38:52 2012  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rexml/parsers/baseparser.rb, test/rexml/test_namespace.rb:
-	  fix the default xml namespace URI validation.
-	  [ruby-dev:45169] [Bug #5956]
-	  Reported by Miho Hiramatsu. Thanks!!!
-
-Thu Feb  2 17:51:02 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* io.c (argf_next_argv): reset ARGF.next_p on ARGV.replace.
-	  r34409 breaks replacing ARGV.
-	  [ruby-dev:45160] [Bug #5952]
-
-Thu Feb  2 16:21:01 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/net/http/test_http.rb (TestNetHTTPKeepAlive#*): remove debug
-	  output.
-
-Thu Feb  2 01:24:34 2012  Yusuke Endoh  <mame@tsg.ne.jp>
-
-	* parse.y (debug_lines, coverage): set file path encoding for coverage
-	  result.  [ruby-dev:44950]
-
-Wed Feb  1 14:38:31 2012  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/tempfile.rb (Tempfile#unlink, Tempfile::Remover#call): Just
-	  call File.unlink and ignore ENOENT because existence check
-	  before unlinking does not help in terms of race condition.
-
-	* lib/tempfile.rb (Tempfile#unlink, Tempfile::Remover#call): My
-	  comment about thread safeness is obsolete.
-
-Wed Feb  1 09:50:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* doc/re.rdoc (Repetition): fix typo.  reported by Ori Avtalion
-	  and patched by Zachary Scott.  [Bug #5947]
-
-Wed Feb  1 06:38:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (argf_close): skip stdin, which should be readable again.
-	  [ruby-dev:45160] [Bug #5952]
-
-	* io.c (argf_readlines): reinitialize after all read to be
-	  readable again.
-
-Tue Jan 31 21:27:43 2012  Narihiro Nakamura  <authornari@gmail.com>
-
-	* configure.in (HEAP_ALIGN_LOG): HEAP_ALIGN_LOG should be page
-	  size in OpenBSD. [ruby-core:42158][Bug #5901]
-
-	* gc.c : avoid to redefine.
-
-Tue Jan 31 14:27:22 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/ruby/envutil.rb (EnvUtil.invoke_ruby): yield also child pid
-	  in block form.
-
-Mon Jan 30 19:08:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_eval.c (vm_call0): should pass block to enumerators.  patched
-	  by Kazuki Tsujimoto.  [ruby-dev:44961][Bug #5731]
-
-	* vm_eval.c (method_missing), vm_insnhelper.c (vm_call_method):
-	  ditto.  patched by satoshi shiba.
-
-Mon Jan 30 12:31:05 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* file.c (append_fspath): need to set the encoding to result always.
-
-Mon Jan 30 10:38:37 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/irb/test_completion.rb: skip if cannot load irb/completion
-	  (maybe readline does not exist).
+	* string.c (rb_str_enumerate_chars): ditto, and suppress a warning
+	  by gcc6.
 
-Sun Jan 29 22:47:19 2012  Yutaka Kanemoto  <kanemoto@ruby-lang.org>
+Fri Jul 17 15:36:52 2015  yui-knk  <spiketeika@gmail.com>
 
-	* tool/config.{guess,sub}: updated to automake-1.11.2.
+	* test/ruby/test_range.rb (test_first_last): Add test for
+	  `Range.new`.  [Fix GH-971]
 
-Sun Jan 29 12:17:56 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jul 17 15:36:40 2015  yui-knk  <spiketeika@gmail.com>
 
-	* ext/readline/readline.c (readline_attempted_completion_function):
-	  respect encodings.  [Bug #5941]
+	* test/ruby/test_range.rb (test_first_last): Add assertions to
+	  test of `Range#last` with exclude_end true case.  [Fix GH-970]
 
-Sat Jan 28 09:33:33 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+Fri Jul 17 09:59:14 2015  Eric Wong  <e@80x24.org>
 
-	* win32/win32.c (rb_w32_read): fix an issue that $stdin.read doesn't
-	  terminate by CTRL-C on Windows.
-	  [ruby-dev:45149] [Bug #5812]
+	* thread.c (rb_thread_alone): simplify
 
-Sat Jan 28 08:18:11 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+Fri Jul 17 09:58:32 2015  Eric Wong  <e@80x24.org>
 
-	* test/ruby/test_thread.rb
-	  (TestThreadGroup#test_thread_timer_and_interrupt): skip exit status
-	  assertion because we cannot get signal status on Windows.
+	* lib/rinda/tuplespace.rb: remove enumerator require
+	* test/pathname/test_pathname.rb: ditto
 
-	* win32/win32.c (CreateChild): create process group to receive the
-	  signal by GenerateConsoleCtrlEvent().
+Fri Jul 17 05:33:58 2015  Eric Wong  <e@80x24.org>
 
-	* win32/win32.c (kill): use CTRL_BREAK_EVENT instead of CTRL_C_EVENT
-	  if a process group is specified. CTRL_C_EVENT signal cannot be
-	  generated for process groups for the specification.
-	  [ruby-dev:45149] [Bug #5812]
+	* iseq.c (rb_iseq_compile_with_option): reuse result of previous
+	  GET_THREAD() call
+	* thread.c (thread_create_core): ditto
+	  (rb_mutex_trylock): ditto
+	  (rb_mutex_lock): ditto
+	* process.c (rb_waitpid): avoid multiple eval from RUBY_VM_CHECK_INTS
+	* thread.c (rb_thread_check_ints): ditto
 
-Sat Jan 28 07:46:03 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+Thu Jul 16 19:12:30 2015  Eric Wong  <e@80x24.org>
 
-	* thread_win32.c (rb_w32_wait_events_blocking): use
-	  ruby_thread_from_native() instead of GET_THREAD() because
-	  GET_THREAD() doesn't always return the current thread and
-	  WaitForMultipleObjects() at rb_w32_read() doesn't return by
-	  Thread#kill. This fixes TestQueue#test_thr_kill failure on
-	  Windows.
+	* thread.c (mutex_alloc): remove needless volatile
 
-	* thread_win32.c (rb_w32_wait_events): use ruby_thread_from_native()
-	  instead of GET_THREAD() for consistency with the above change.
+Thu Jul 16 22:05:29 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* thread_win32.c (rb_w32_sleep): ditto.
+	* vm_core.h: constify rb_iseq_t::parent_iseq.
 
-	* thread_win32.c (rb_w32_Sleep): ditto.
-	  [ruby-dev:45149] [Bug #5812]
+	  rb_iseq_t::local_iseq is not constant data because
+	  local_iseq::flip_cnt can be modified (commented).
 
-Sat Jan 28 07:28:48 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+	* compile.c: catch up this fix.
 
-	* test/zlib/test_zlib.rb (TestZlibGzipReader#test_reader_wrap): set
-	  binmode explicitly for fixing test error on Windows. This is consistent
-	  with r34243.
-	  [ruby-dev:45149] [Bug #5812]
-
-Sat Jan 28 05:53:34 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/irb/completion.rb (IRB::InputCompletor::CompletionProc):
-	  ignore non-string name modules.  [ruby-core:42244][Bug #5938]
-
-Fri Jan 27 16:31:45 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gc.c (HEAP_ALIGN, HEAP_ALIGN_MASK): DRY, let compiler calculate
-	  from HEAP_ALIGN_LOG.
-
-Thu Jan 26 11:03:37 2012  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/matrix.rb:  Clean up extra whitespace in output documentation.
-
-Thu Jan 26 03:24:02 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/io/console/console.c (io_getch): default delegating method
-	  for StringIO.  https://github.com/nobu/io-console/issues/4
-
-	* ext/stringio/stringio.c: moved some methods to hidden modules.
-
-Wed Jan 25 13:27:42 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_file_s_basename): ignore non-ascii extension in
-	  different encoding, which cannot match.
+	* iseq.c: ditto.
 
-	* file.c (rmext): no extension to strip if empty string.
+	* vm_insnhelper.c: ditto.
 
-	* file.c (rb_enc_path_next, rb_enc_path_skip_prefix)
-	  (rb_enc_path_last_separator, rb_enc_path_end)
-	  (ruby_enc_find_basename, ruby_enc_find_extname): encoding-aware
-	  path handling functions.
+Thu Jul 16 21:47:47 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* file.c (rb_home_dir, file_expand_path, rb_realpath_internal)
-	  (rb_file_s_basename, rb_file_dirname, rb_file_s_extname)
-	  (rb_file_join): should respect the encodings of arguments than
-	  file system encoding.  [ruby-dev:45145] [Bug #5919]
+	* process.c (redirect_dup2): when the new FD of dup2() conflicts
+	  with one of the timer thread FDs, the internal FD is diverted.
+	  [Bug #11336] [ruby-core:69886] [Bug #11350] [ruby-core:69961]
 
-	* dir.c (check_dirname, ruby_glob0): ditto.
+	* process.c (dup2_with_divert): new function for the above purpose.
 
-	* ext/pathname/pathname.c (path_sub_ext): ditto.
+	* thread_pthread.c (rb_divert_reserved_fd): new function for
+	  diverting reserved FD. If the given FD is the same as one of the
+	  reserved FDs, the reserved FD number is internally changed.
+	  It returns -1 when error. Otherwise, returns 0. It also returns
+	  0 if there is no need to change reserved FD number.
 
-Tue Jan 24 14:20:42 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* thread_win32.c (rb_divert_reserved_fd): always returns 0 because
+	  of no reserved FDs.
 
-	* vm.c (rb_iter_break_value): new function to break a block with
-	  the value.  [ruby-dev:45132] [Feature #5895]
+	* internal.h (rb_divert_reserved_fd): prototype declaration.
+	  It is Ruby internal use only.
 
-Tue Jan 24 12:58:41 2012  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Thu Jul 16 21:47:46 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* object.c (rb_Hash): add Kernel#Hash conversion method like
-	  Array() or Float().  a patch from Run Paint Run Run.  Fix #3131
+	* iseq.c (rb_iseq_disasm): rename rb_iseq_t *iseqdat to iseq
+	  and VALUE *iseq to code.
 
-Tue Jan 24 11:38:05 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* iseq.c (rb_iseq_disasm_insn): ditto.
 
-	* lib/uri/common.rb (URI.encode_www_form_component): initialize on
-	  requiring to support JRuby, which runs parallel multithreads.
-	  [ruby-core:42222] [Bug #5925]
+Thu Jul 16 14:34:24 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/uri/common.rb (URI.decode_www_form_component): initialize on
+	* vm.c (REWIND_CFP): keep the arguments region inside the valid
+	  value stack.  [ruby-core:69969] [Bug #11352]
 
-Mon Jan 23 20:33:11 2012  Jason Kay  <geniture@me.com>
+Thu Jul 16 11:38:21 2015  Eric Wong  <e@80x24.org>
 
-	* lib/net/http.rb (Net::HTTP#connect): Writing entire packet at
-	  once to avoid incomplete transmission.  Current code using
-	  writeline was causing sub-optimal conversing with a proxy due to
-	  the connect tunnel request headers being split over multiple
-	  packets. The modification I made allows the connect request to
-	  be written as one packet, avoiding problems and optimizing the
-	  conversation.
+	* process.c (close_unless_reserved): declare type of `fd' arg
 
-	  https://github.com/ruby/ruby/pull/72
-	  [Feature #5460]
+Thu Jul 16 08:47:29 2015  Eric Wong  <e@80x24.org>
 
-Mon Jan 23 17:06:17 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* load.c (rb_construct_expanded_load_path): fstring expanded path
+	  (get_loaded_features_index): fstring feature path
+	  (rb_provide_feature): ditto
+	  [ruby-core:69871] [Feature #11331]
 
-	* lib/uri/mailto.rb (URI::MailTo.build): follow Array#to_s change of
-	  Ruby 1.9; use Array#join. [Bug #5840]
+Thu Jul 16 02:56:14 2015  Eric Wong  <e@80x24.org>
 
-Mon Jan 23 16:42:28 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* thread.c (thread_initialize): avoid RSTRING_PTR and NUMT2INT
 
-	* io.c (extract_binmode): raise an exception if binmode/textmode
-	  is specified with both vmode and opthash.
-	  [ruby-core:42199] [Bug #5918]
+Thu Jul 16 01:00:46 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-Mon Jan 23 16:35:27 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* test/ruby/test_process.rb (test_exec_close_reserved_fd): test for
+	  [Bug #11353]
 
-	* io.c (rb_io_extract_modeenc): set ASCII-8BIT if binmode is specified
-	  with opthash. [ruby-core:42197] [Bug #5917]
+Thu Jul 16 00:35:42 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-Mon Jan 23 10:08:00 2012  Kenta Murata  <mrkn@cookpad.com>
+	* .gitignore: ignore version.i.
 
-	* test/cgi/test_cgi_util.rb (test_cgi_escape_preserve_encoding):
-	  add a test for CGI::escape to preserve encoding.
+Wed Jul 15 23:40:32 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* test/cgi/test_cgi_util.rb (test_cgi_unescape_preserve_encoding):
-	  add a test for CGI::unescape to preserve encoding.
+	* test/ruby/test_process.rb (test_deadlock_by_signal_at_forking):
+	  use RUBY (= EnvUtil.rubybin)
 
-Mon Jan 23 00:45:34 2012  Akinori MUSHA  <knu@iDaemons.org>
+Wed Jul 15 23:01:22 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* misc/rdoc-mode.el (rdoc-imenu-create-index): Add imenu support
-	  to rdoc-mode.
+	* process.c (redirect_close, parent_redirect_close): should not close
+	  reserved FD. It should be closed in the exec system call due to the
+	  O_CLOEXEC or FD_CLOEXEC flag. [Bug #11353] [ruby-core:69977]
 
-	* misc/rdoc-mode.el (rdoc-mode): Fix regexp patterns containing
-	  "\s " where CR/LF is not supposed to match.
+	* process.c (close_unless_reserved): new function to close FD unless
+	  it is reserved for internal communication.
 
-Sun Jan 22 15:41:26 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* thread_pthread.c (rb_reserved_fd_p): should check owner_process pid
+	  to avoid false positive in forked child process.
 
-	* parse.y (rb_intern3): split to registration check and new
-	  registration.
+Wed Jul 15 18:31:18 2015  Eric Wong  <e@80x24.org>
 
-	* parse.y (rb_intern_str): make interned string shared with the
-	  given string.
+	* proc.c (proc_mark): remove redundant check
+	* vm.c (env_mark): ditto
 
-	* parse.y (rb_intern3, rb_intern_str): check the coderange first.
+Wed Jul 15 17:27:40 2015  Eric Wong  <e@80x24.org>
 
-Sat Jan 21 22:21:07 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* iseq.c (iseq_mark): remove check for data pointer
+	* proc.c (binding_mark): ditto
+	* vm.c (rb_thread_mark): ditto
+	* vm_trace.c (tp_mark): ditto
 
-	* include/ruby/ruby.h (FIXNUM_P): simple flag should be int.
+Wed Jul 15 16:55:04 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Jan 21 21:51:19 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* encoding.c (enc_autoload): drop dummy encoding flag from
+	  the loaded encoding index.  this flag is used only in this
+	  source.
 
-	* encoding.c (rb_enc_compatible): fix segv on symbols.
-	  [ruby-core:42204] [Bug #5921]
+Wed Jul 15 14:39:29 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Jan 21 11:43:45 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm.c (vm_make_env_each): add comments about env layout.
+	  Do not use `i' to specify `new_ep'.
 
-	* dir.c (dir_chdir, check_dirname): get rid of optimization-out.
+	* vm.c (rb_proc_create, rb_vm_make_proc_lambda): envval is not used.
 
-Fri Jan 20 20:47:37 2012  Kenta Murata  <mrkn@cookpad.com>
+Wed Jul 15 08:59:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/cgi/util.rb (CGI.escape): support a string with invalid byte
-	  sequence.  [Bug #5913]
+	* gc.h (RUBY_MARK_UNLESS_NULL): evaluate the argument only once
+	  to get rid of inadvertent side effects.
 
-	* test/cgi/test_cgi_util.rb
-	  (test_cgi_escape_with_invalid_byte_sequence): test for the above
-	  change.
+Wed Jul 15 02:53:11 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Jan 20 17:37:37 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* vm_core.h, vm.c: remove rb_proc_t::envval because we can know it via
+	  rb_proc_t::block::ep.
 
-	* vm.c (vm_exec): remove workaround for LLVM because r34278 fixes it.
+	  rb_vm_proc_envval(const rb_proc_t *proc) returns an Env object which
+	  the Proc object use.
 
-	* vm_insnhelper.c (vm_call_cfunc): ditto.
+	* proc.c: catch up this fix.
 
-Fri Jan 20 14:31:43 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* vm_dump.c (rb_vmdebug_proc_dump_raw): ditto.
 
-	* lib/net/http.rb (Net::HTTP#transport_request): retry a idempotent
-	  request automatically. [ruby-dev:45030] [Bug #5790]
-	  [ruby-core:41821] [Bug #5813]
+Wed Jul 15 02:27:22 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/net/http.rb (Net::HTTP#keep_alive_timeout=): added to specify
-	  the second to reconnect the TCP connection on Keep-Alive.
-	  The default value is 2 second because current servers uses 2 sec.
-	  http://ftp-admin.blogspot.com/2009/09/keepalivetimeout2.html
+	* vm_core.h, vm.c: remove rb_env_t::prev_envval because we can know it
+	  via env->ep.
 
-	* lib/net/http.rb (Net::HTTP#begin_transport): reconnect TCP
-	  connection on keep-alive timeout.
+	  rb_vm_env_prev_envval(env) returns prev_envval via env->ep.
 
-Thu Jan 19 07:53:09 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+	* vm_core.h (rb_vm_env_local_variables): change parameter type
+	  from VALUE (T_DATA/env) to `const rb_env_t *' to make same as
+	  rb_vm_env_prev_envval().
 
-	* ext/date/date_strptime.c: moved detector of leftover.
+	* proc.c: catch up these changes.
 
-Thu Jan 19 07:10:47 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+	* vm_dump.c: ditto.
 
-	* ext/date/date_parse.c: [ruby-core:42173].
+	* vm.c: rename macros.
 
-Wed Jan 18 18:11:02 2012  Akinori MUSHA  <knu@iDaemons.org>
+	  * ENV_IN_HEAP_P() to VM_EP_IN_HEAP_P() because it uses ep.
+	  * ENV_VAL() to VM_ENV_EP_ENVVAL() because it is too short.
 
-	* misc/rdoc-mode.el (rdoc-mode): Add provide so that requiring
-	  this library succeeds.
+Wed Jul 15 01:09:09 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Jan 18 18:06:45 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm.c: refactoring Proc/Env related code.
 
-	* ext/curses/curses.c (cWindow, cMouseEvent): made typed data.
+	* vm_core.h: remove blockprocval field from rb_proc_t and rb_binding_t.
+	  Instead of this field, mark given block in Proc at rb_env_t::env.
 
-Wed Jan 18 12:49:15 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+	* vm.c (vm_make_env_each): make an Env object with this layout.
+	  And also simplify parameters.
 
-	* ext/psych/lib/psych/visitors/to_ruby.rb: Added support for loading
-	  subclasses of String with ivars
-	* ext/psych/lib/psych/visitors/yaml_tree.rb: Added support for dumping
-	  subclasses of String with ivars
-	* test/psych/test_string.rb: corresponding tests
+	* proc.c: catch up this fix.
 
-Wed Jan 18 10:39:47 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+	* vm_core.h: remove rb_env_t::local_size because it is not used.
 
-	* ext/psych/lib/psych/visitors/to_ruby.rb: Added ability to load array
-	  subclasses with ivars.
-	* ext/psych/lib/psych/visitors/yaml_tree.rb: Added ability to dump
-	  array subclasses with ivars.
-	* test/psych/test_array.rb: corresponding tests
+	* vm_dump.c (rb_vmdebug_env_dump_raw): catch up this fix.
 
-Tue Jan 17 17:18:41 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_core.h (rb_vm_make_env_object): remove rb_vm_make_env_object()
+	  because it is only referred from vm.c.
 
-	* configure.in (SPT_TYPE): enable as SPT_REUSEARGV on Darwin.
+	* vm_eval.c (eval_string_with_cref): catch up this fix.
 
-	* missing/setproctitle.c (ruby_init_setproctitle): changed prefix.
+Wed Jul 15 00:03:36 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-Tue Jan 17 12:32:46 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gc.c (__has_feature): move into internal.h.
 
-	* gc.c (aligned_malloc, aligned_free): covered missing defined
-	  operators and fixes for cygwin.
+	* internal.h (__has_feature): ditto.
 
-Tue Jan 17 10:54:46 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* internal.h (__has_extension): new macro.
 
-	* st.c (do_hash): it's the time to remove cast to unsigned int.
+	* internal.h (STATIC_ASSERT): use _Static_assert with
+	  clang. [ruby-core:69931] [Bug #11343]
 
-Tue Jan 17 07:30:12 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Wed Jul 15 00:00:00 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-	* st.c (unpack_entries): Fix r34310: on unpacking, the position of
-	  a hash must be do_hash-ed value.
+	* random.c (fill_random_bytes_syscall): fix compile error with
+	  clang. [ruby-core:69931] [Bug #11343]
 
-	* st.c (add_packed_direct): ditto.
+Tue Jul 14 11:22:42 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Jan 16 16:41:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/webrick/utils.rb (WEBrick::Utils::TimeoutHandler#register):
+	  notify the handler thread of new timeout registration.
 
-	* lib/optparse.rb (Regexp): fix incorrect options when casting to
-	  a Regexp, and suppress encoding option warnings.
-	  https://github.com/ruby/ruby/pull/82
+	* lib/webrick/utils.rb (WEBrick::Utils::TimeoutHandler#initialize):
+	  make sleep intervals adaptive than fixed period intervals.
 
-Mon Jan 16 11:22:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/webrick/server.rb (WEBrick::GenericServer#start): flush
+	  shutdown pipe.
 
-	* win32/win32.c (rb_chsize): no need to get the current file size.
+	* lib/webrick/server.rb (WEBrick::GenericServer#stop): request the
+	  server to stop immediately by sending data via shutdown pipe.
 
-Mon Jan 16 00:41:33 2012  Sokolov Yura  <funny.falcon@gmail.com>
+Mon Jul 13 23:58:08 2015  Stefano Tortarolo  <stefano.tortarolo@gmail.com>
 
-	* st.c: st use function instead of macro.  In my current
-	  environment (Ubuntu 11.04 32bit gcc-4.5.2) it gives 4%
-	  performance improvement.
+	* lib/webrick/httpproxy.rb (WEBrick::HTTPProxyServer#do_CONNECT):
+	  fix typos in debugger statements.  [Fix GH-967]
 
-	  https://github.com/ruby/ruby/pull/77
+Mon Jul 13 19:11:35 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Jan 15 14:09:48 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* lib/timeout.rb (timeout): warn as deprecated for a long time.
 
-	* object.c (rb_inspect): raise the result is not compatible with
-	  the default external encoding. [ruby-core:42095] [Bug #5848]
-	  If the default external encoding is ASCII compatible, the encoding of
-	  inspected result must be compatible with it.
-	  If the default external encoding is ASCII incompatible,
-	  the result must be ASCII only.
+Mon Jul 13 01:37:27 2015  Zachary Scott  <zzak@ruby-lang.org>
 
-Sun Jan 15 13:21:50 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* ext/openssl/ossl.c: [DOC] Backport ruby/openssl@dbb3fdb [Bug #11345]
+	  Thanks to Tomoya Chiba for the report and help with patch.
 
-	* ext/json/parser/parser.rl (json_string_unescape): workaround fix
-	  for over optimization of GCC 4.7. [ruby-core:42085] [Bug #5888]
-	  http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51862
+Sun Jul 12 09:20:02 2015  Shota Fukumori  <her@sorah.jp>
 
-Sat Jan 14 22:24:09 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/socket/basicsocket.c: [DOC] typo (Errno::AGAIN -> Errno::EAGAIN)
 
-	* ext/dl/callback/mkcallback.rb (gencallback): suppress unused
-	  variables.
+	* ext/socket/socket.c: ditto
 
-Sat Jan 14 21:56:43 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/socket/tcpserver.c: ditto
 
-	* iseq.c (iseq_data_to_ary): check line info table boundary.  line
-	  number 0 means no line number info is needed.  [ruby-dev:45130]
-	  [Bug #5894]
+	* ext/socket/udpsocket.c: ditto
 
-Sat Jan 14 18:24:13 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* ext/socket/unixserver.c: ditto
 
-	* error.c (exc_equal): clear rb_thread_t::errinfo when ignore
-	  an exception under rb_protect(). [ruby-core:41979] [Bug #5865]
+	* io.c: ditto
 
-Sat Jan 14 12:02:55 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Jul 12 06:42:23 2015  ksss  <co000ri@gmail.com>
 
-	* sprintf.c (rb_enc_vsprintf): relaxed the restriction.  since the
-	  implementation deeply depends on plain char, so wchar_t based
-	  encodings are not supported.
+	* test/stringio/test_stringio.rb (test_sysread): add a test for
+	  StringIO#sysread.  [Fix GH-966]
 
-Sat Jan 14 12:00:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Jul 11 21:16:34 2015  ksss  <co000ri@gmail.com>
 
-	* error.c (exc_equal): ignore exceptions during implicit
-	  conversion.  [ruby-core:41979] [Bug #5865]
+	* ext/stringio/stringio.c (Init_stringio): [DOC] Fix an example,
+	  StringIO#puts should be set "\n" at last.  [Fix GH-965]
 
-Sat Jan 14 05:58:54 2012  Eric Hodel  <drbrain@segment7.net>
+Sat Jul 11 12:45:51 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* io.c (rb_io_s_read):  Fix formatting of open_args comment.  Reported
-	  by Adam Prescott.
+	* lib/timeout.rb (Timeout#timeout): remove regexp with wrong line
+	  number and fix caller depth.
 
-Fri Jan 13 18:41:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jul 10 22:05:50 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* sprintf.c (rb_enc_vsprintf): can be used for ASCII compatible
-	  encodings only.
+	* lib/timeout.rb (ExitException): removed internal exception class
+	  and use Timeout::Error instead, as using throw/catch to isolate
+	  each timeouts now.  [ruby-dev:49179] [Bug #11344]
 
-Fri Jan 13 18:29:06 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jul 10 17:41:54 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* thread.c (rb_mutex_unlock_th): simplified.
+	* dir.c (is_case_sensitive): get attributes by the file descriptor
+	  of open directory, instead of using mount point name.
 
-	* thread.c (rb_barrier_waiting): fix potential overflows.
+Fri Jul 10 10:46:02 2015  ksss  <co000ri@gmail.com>
 
-Fri Jan 13 17:23:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/stringio/stringio.c (writable): remove unnecessary check for
+	  deprecated safe level 4.  [Fix GH-963]
 
-	* load.c (load_unlock): update loading table at once.
+Thu Jul  9 15:07:12 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Fri Jan 13 16:44:45 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* win32/win32.c (waitpid): return immediately if interrupted.
+	  reported by <takkanm AT gmail.com> [ruby-dev:49176] [Bug #11340]
 
-	* error.c (exc_equal): try implicit conversion for delegator.
-	  [ruby-core:41979] [Bug #5865]
+Thu Jul  9 13:03:46 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Jan 13 03:46:53 2012  Akinori MUSHA  <knu@iDaemons.org>
+	* vm_insnhelper.c (vm_search_super_method): use CI_SET_FASTPATH().
 
-	* lib/shellwords.rb (Shellwords#shellescape): shellescape() now
-	  stringifies the given object using to_s.
+Thu Jul  9 11:07:06 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/shellwords.rb (Shellwords#shelljoin): shelljoin() accepts
-	  non-string objects in the given array, each of which is
-	  stringified using to_s.
+	* vm_core.h: remove rb_call_info_t::klass because
+	  rb_callable_method_entry_t has information about defined class.
 
-	* lib/shellwords.rb: Fix rdoc markups.
+	* vm_insnhelper.c (vm_search_method): don't set ci->klass because
+	  it is removed.
 
-Fri Jan 13 03:38:36 2012  Akinori MUSHA  <knu@iDaemons.org>
+	* vm_insnhelper.c (rb_equal_opt): ditto.
 
-	* lib/shellwords.rb (Shellwords#shellsplit): Fix a bug where
-	  consecutive backslashes in double quotes are all removed except
-	  the one at the tail.
+	* vm_insnhelper.c (vm_search_superclass): removed because it is too
+	  simple to write code directly.
 
-Fri Jan 13 03:28:00 2012  Luis Lavena  <luislavena@gmail.com>
+	* vm_insnhelper.c (vm_defined): don't use vm_search_superclass().
+	  This fix avoid searching current callable `me' twice.
 
-	* ext/socket/extconf.rb (if ipv6): only define _WIN32_WINNT if was not
-	  previously defined. This solve warnings with multiple defines in
-	  command line with GCC 4.6.1
+	* vm_insnhelper.c (vm_search_super_method): ditto.
 
-Thu Jan 12 18:44:31 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Jul  9 10:03:10 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* lib/mkmf.rb: fix r33904 and revert r33905.  initialize global
-	  variables with init_mkmf before initializing constants.
-	  [ruby-dev:45124] [Bug #5879]
+	* lib/net/http/responses.rb: Added 308 status to CODE_TO_OBJ list.
+	  [fix GH-961] Patch by @billinghamj
 
-Thu Jan 12 13:51:00 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Jul  9 09:34:14 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* cont.c (cont_restore_0): prevent optimizing out `sp'. sp is used for
-	  reserving a memory space with ALLOCA_N for restoring machine stack
-	  stored in cont->machine_stack, but clang optimized out it (and
-	  maybe #5851 is also caused by this).
-	  This affected TestContinuation#test_check_localvars.
+	* vm_core.h (rb_control_frame_t): fix comments (layout index).
 
-	* cont.c (cont_restore_1): revert workaround introduced in r32201.
+Thu Jul  9 09:25:50 2015  Zachary Scott  <e@zzak.io>
 
-Thu Jan 12 02:14:43 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* parse.y: Improve duplicate key warning with patch by @andremedeiros
+	  [Fix GH-938] https://github.com/ruby/ruby/pull/938 [Bug #11327]
 
-	* object.c: Added examples for Object#is_a? and
-	  Object#instance_of? patched from Manoj Kumar.
-	  [Bug #5880] [ruby-core:42057]
+Wed Jul  8 07:43:01 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Jan 12 00:57:48 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	* lib/csv.rb: typo fix [ci skip][fix GH-958] Patch by @henrik
 
-	* lib/mkmf.rb: verbose-mode can use by RM, RMDIRS, etc.
-	  (e.g. make V=1 realclean)
+Wed Jul  8 04:42:27 2015  Eric Wong  <e@80x24.org>
 
-Wed Jan 11 23:40:21 2012  Naohisa Goto  <ngoto@gen-info.osaka-u.ac.jp>
+	* iseq.c (iseq_data_to_ary): dump kw_arg as symbol
+	* test/-ext-/iseq_load/test_iseq_load.rb: test kw_arg roundtrip
+	  [ruby-core:69891] [Bug #11338]
 
-	* string.c (rb_str_concat): set array element after definition
-	  to fix compile error with Fujitsu C Compiler 5.6 on Solaris 10
-	  on Sparc.  [Bug #5878] [ruby-dev:45123]
+Tue Jul  7 18:18:41 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-Wed Jan 11 22:52:51 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* random.c (fill_random_bytes_syscall): fix compile error.
 
-	* gc.c (ruby_mimmalloc): don't set allocated size to header.
-	  ruby_mimmalloc() doesn't increment allocated_size/allocations and
-	  decrement them in ruby_xfree() cause inconsistency.
+Tue Jul  7 16:47:30 2015  Eric Wong  <e@80x24.org>
 
-	* gc.c (ruby_xfree): don't decrement allocated_size/allocations if
-	  allocated size record is 0.
+	* compile.c (COMPILE_ERROR): reduce GET_THREAD() calls
 
-Wed Jan 11 22:36:43 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+Tue Jul  7 16:39:04 2015  Eric Wong  <e@80x24.org>
 
-	* test/readline/test_readline.rb (test_completion_proc_empty_result):
-	  ensure clearance of Readline's line_buffer after the test.
+	* random.c (fill_random_bytes_syscall): return -1 for error
+	* random.c (fill_random_bytes): try urandom on syscall failure
 
-Tue Jan 10 21:57:38 2012  Hiroshi Shirosaki <h.shirosaki@gmail.com>
+Tue Jul  7 15:02:18 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/dbm/dbm.c (Init_dbm): fix a build error on mswin32.
-	  use `extern __declspec(dllimport)` for dll link with VC.
-	  [ruby-core:41996] [Bug #5869]
+	* file.c (rb_str_normalize_ospath): skip invalid byte sequence not
+	  to loop infinitely.  this case usually does not happen as the
+	  input name should come from real file systems.
 
-Tue Jan 10 15:31:55 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Tue Jul  7 14:40:08 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* vm.c (vm_exec): refix r34162; suppress warning and add description.
+	* vm_backtrace.c: remove debug flag introduced accidentally.
 
-Tue Jan 10 15:13:58 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Tue Jul  7 12:05:37 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/readline/readline.c (readline_attempted_completion_function):
-	  use rb_memerror().
+	* cont.c (cont_free): remove mysterious fflush()
+	  introduced at r19890, maybe accidentally.
 
-Tue Jan 10 12:49:42 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Tue Jul  7 11:45:14 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* gc.c: in fact, i686-linux doesn't need to define _XOPEN_SOURCE 600.
+	* proc.c (rb_method_call): because data->me should be non-NULL,
+	  do not check data->me
 
-Tue Jan 10 12:44:11 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* proc.c (method_inspect): ditto.
 
-	* gc.c (ruby_mimmalloc): defined for objects need not rb_objspace,
-	  but should return pointer suitable for ruby_xfree;
-	  main vm and main thread.
-	  patched by Sokolov Yura. https://github.com/ruby/ruby/pull/79
+Tue Jul  7 11:37:25 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* internal.h: ditto.
+	* vm_core.h: remove rb_iseq_t::orig because rb_iseq_clone()
+	  no longer exists.
 
-	* vm.c (Init_BareVM): use ruby_mimmalloc.
+	* iseq.c: don't use rb_iseq_t::orig.
 
-	* ext/dl/cfunc.c: #include <ruby/util.h>.
+Tue Jul 07 11:25:57 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/syslog/syslog.c: use xfree because it is allocated by
-	  ruby_strdup.
+	* iseq.c, internal.h (rb_iseq_clone): removed because we don't need to
+	  clone iseq any more.
 
-Tue Jan 10 12:13:56 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	* class.c (clone_method): share iseq between cloned methods. All of
+	  method dependent information are able to refer from method entry.
 
-	* ext/readline/readline.c (readline_attempted_completion_function):
-	  fix compile error.
+Tue Jul  7 04:42:25 2015  Eric Wong  <e@80x24.org>
 
-Tue Jan 10 10:41:11 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* string.c (Init_String): use rb_str_freeze for String#freeze
+	  to resize internal buffer
+	  [ruby-core:69870] [Feature #11330]
 
-	* ext/readline/readline.c (readline_attempted_completion_function):
-	  empty completion result does not mean memory error.
+Tue Jul  7 04:12:32 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Jan 10 02:19:22 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* vm.c (vm_define_method): remove an unused local variable.
 
-	* test/ruby/test_io.rb (test_autoclose_true_closed_by_finalizer,
-	  test_autoclose_true_closed_by_finalizer): skip if IO objects are
-	  not recycled yet. [ruby-dev:45098] [Bug #5850]
+Tue Jul  7 03:57:28 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Jan 10 00:41:28 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* vm_core.h: remove rb_iseq_t::defined_method_id because it is not
+	  needed.
 
-	* lib/tempfile.rb (Tempfile#_close): clear @tempfile and @data[1] even
-	  when exception is raised at @tempfile.close. [ruby-dev:45113]
+	* eval.c (frame_func_id): simplify. rb_callable_method_entry_t
+	  has enough information.
 
-	* lib/tempfile.rb (Tempfile#unlink): fix a typo.
+	* eval.c (frame_called_id): ditto.
 
-Tue Jan 10 00:32:17 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* iseq.c (prepare_iseq_build): catch up this fix.
 
-	* gc.c (run_finalizer): clear rb_thread_t::errinfo when ignore
-	  an exception under rb_protect(). [ruby-dev:45113]
+	* proc.c (rb_mod_define_method): ditto.
 
-Mon Jan  9 23:37:43 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* vm.c (vm_define_method): ditto.
 
-	* ext/readline/readline.c (readline_attempted_completion_function):
-	  fix typos.
+Tue Jul  7 03:47:26 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Jan  9 20:55:34 2012  Narihiro Nakamura  <authornari@gmail.com>
+	* vm_core.h: remove a useless declaration.
 
-	* gc.c : don't embed struct heaps_slot to a heap block because it
-	  can causes copy-on-write of memory page on heap block when its
-	  free_next is rewritten.
+Tue Jul  7 03:33:20 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Jan  9 20:26:33 2012  Tanaka Akira  <akr@fsij.org>
+	* vm_core.h: remove rb_iseq_t::klass to reduce dynamic data.
 
-	* ext/pathname/pathname.c (path_entries): add document suggested by
-	  the thread [ruby-core:41959] [Bug #5859].
+	* internal.h, iseq.c (rb_iseq_klass): remove it because
+	  rb_iseq_t::klass is removed.
 
-Mon Jan  9 20:14:13 2012  Tanaka Akira  <akr@fsij.org>
+	* vm_insnhelper.c (vm_super_outside): do not see cfp->iseq, but
+	  check callable method entry on a frame.
+	  This fix simplify the logic to search super class.
 
-	* ext/socket/lib/socket.rb (family_addrinfo): don't require protocol
-	  equality.  For example, protocol 0 and IPPROTO_TCP is not problem
-	  for TCP.
+	* test/ruby/test_method.rb: support super() from Proc.
+	  Now, [Bug #4881] and [Bug #3136] was solved.
 
-Mon Jan  9 20:08:52 2012  Tanaka Akira  <akr@fsij.org>
+	* proc.c (rb_mod_define_method): catch up this change.
 
-	* ext/socket/lib/socket.rb (family_addrinfo): return the given
-	  addrinfo object.
-	  Patch by Ippei Obayashi.  [ruby-dev:45095] [Bug #5845]
+	* vm.c (vm_define_method): ditto.
 
-Mon Jan  9 19:40:20 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* vm_backtrace.c (rb_profile_frames): now, each `frame' objects
+	  are rb_callable_method_entry_t data or iseq VALUEs.
 
-	* test/zlib/test_zlib.rb (TestZlibGzipWriter#test_writer_wrap): set
-	  binmode explicitly.
+	  This fix introduce minor compatibility issue that
+	  rb_profile_frame_label() always returns
+	  rb_profile_frame_base_label().
 
-Mon Jan  9 14:42:41 2012  Narihiro Nakamura  <authornari@gmail.com>
+	* test/-ext-/debug/test_profile_frames.rb: catch up this change.
 
-	* gc.c: free_slots is changed Singly linked list. clear
-	  free_slots before sweep.
+Tue Jul  7 01:52:14 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Jan  9 07:46:17 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* cont.c (fiber_init): initialize control frame correctly.
+	  This fix does not affect any ordinal execution, but
+	  affects debug prints.
 
-	* gc.c: i686-linux needs to define _XOPEN_SOURCE 600 for posix_memalign.
+Mon Jul  6 17:59:05 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Jan  9 04:24:59 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* vm_insnhelper.c (vm_search_super_method): do not skip calling
+	  same methods in super.
+	  [Bug #3351]
 
-	* gc.c (rb_objspace_free): global_List is allocated with xmalloc.
-	  patched by Sokolov Yura.  https://github.com/ruby/ruby/pull/78
+	* test/ruby/test_super.rb: fix a test.
 
-	* dln_find.c: remove useless replacement of free.
+Mon Jul  6 17:59:11 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/readline/readline.c (readline_attempted_completion_function):
-	  strings for readline must allocated with malloc.
+	* ext/tk/tcltklib.c: removed deprecated safe level.
 
-	* process.c (run_exec_dup2): use free; see also r20950.
+Mon Jul  6 17:16:37 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* re.c (onig_new_with_source): use malloc for oniguruma.
+	* method.h, proc.c (rb_method_entry_location): make it static
+	  and remove prefix `rb_' because it is used only in proc.c.
 
-	* vm.c (ruby_vm_destruct): use free for VMs.
+Mon Jul  6 16:42:10 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* vm.c (thread_free): use free for threads.
+	* test/lib/memory_status.rb: removed redundant path.
 
-Mon Jan  9 04:24:59 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Mon Jul  6 01:18:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* dln_find.c: remove useless replacement of free.
+	* test/lib/test/unit/parallel.rb: make @@project_dir one level
+	  upper as this file had moved one level deeper.
 
-	* ext/readline/readline.c (filename_completion_proc_call):
-	  matches should use xfree.
+Sun Jul  5 23:54:10 2015  mizokami  <suzunatsu@yahoo.com>
 
-	* ext/readline/readline.c (username_completion_proc_call): ditto.
+	* lib/optparse.rb: [DOC] Fix typo.
 
-Mon Jan  9 01:12:35 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+Sun Jul  5 18:25:37 2015  Eric Wong  <e@80x24.org>
 
-	* numeric.c (rb_enc_uint_char): raise RangeError when added codepoint
-	  is invalid. [Feature #5855] [Bug #5863] [Bug #5864]
+	* gc.c (gc_profile_record_get): fix spelling error in keys
 
-	* string.c (rb_str_concat): ditto.
+Sun Jul  5 14:49:01 2015  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-	* string.c (rb_str_concat): set encoding as ASCII-8BIT when the string
-	  is US-ASCII and the argument is an integer greater than 127.
+	* README.md: fix a typo pointed out by raoulvdberge.
+	  https://github.com/ruby/ruby/pull/953#commitcomment-11998186
 
-	* regenc.c (onigenc_mb2_code_to_mbclen): rearrange error code.
+Sun Jul  5 12:56:20 2015  Irvi Firqotul Aini  <viarc7@gmail.com>
 
-	* enc/euc_jp.c (code_to_mbclen): ditto.
+	* README.md: Added link HowToReport bugs.
 
-	* enc/shift_jis.c (code_to_mbclen): ditto.
+Sun Jul  5 10:51:48 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Jan  8 20:31:45 2012  Narihiro Nakamura  <narihiro@netlab.jp>
+	* array.c (rb_ary_sort_bang): the original array may not be
+	  embedded even if a substitution array is embedded, as it is
+	  embedded when the original array is short enough but not
+	  embedded.  [ruby-dev:49166] [Bug #11332]
 
-	* gc.c : consider header bytes which are used by malloc.
+Sun Jul  5 09:31:40 2015  Eric Wong  <e@80x24.org>
 
-Sun Jan  8 11:54:43 2012  Narihiro Nakamura  <authornari@gmail.com>
+	* test/ruby/test_process.rb: test for fd=3 usability in child
 
-	* gc.c (aligned_free): support MinGW. Patch by Hiroshi Shirosaki.
+Sat Jul  4 19:43:31 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sun Jan  8 11:43:05 2012  Narihiro Nakamura  <authornari@gmail.com>
+	* Add test case for empty array and first method with args.
+	  Patch by @yui-knk [fix GH-955]
 
-	* gc.c (slot_sweep): add a assertion instead of a debug print.
+Sat Jul  4 19:39:08 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sun Jan  8 01:18:19 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* Add test for `Enumerable#sort` with block. Patch by @yui-knk
+	  [fix GH-954]
 
-	* test/-ext-/old_thread_select/test_old_thread_select.rb:
-	  avoid platform bug. [Bug #5858] [ruby-dev:45108]
+Sat Jul  4 14:38:43 2015  Eric Wong  <e@80x24.org>
 
-Sun Jan  8 00:46:34 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* enum.c (zip_ary): remove volatile, use RB_GC_GUARD
+	  (zip_i): ditto
 
-	* gc.c: get rid of implicit narrowing conversion.
+Sat Jul  4 10:42:57 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Jan  8 00:10:10 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	* lib/rubygems/test_case.rb (teardown): do not delete features
+	  loaded from the original load paths, the same libraries should
+	  be loaded again when the same features are required.
+	  [ruby-dev:49031] [Bug #11222]
 
-	* configure.in: check posix_memalign(3) and memalign(3).
+Sat Jul  4 09:38:52 2015  Eric Wong  <e@80x24.org>
 
-	* gc.c (aligned_malloc): use configure's result instead of
-	  _POSIX_C_SOURCE and _XOPEN_SOURCE because they can't be used
-	  to check availability at least on FreeBSD.
+	* vm.c (rb_vm_mark): reduce branches for always-set VM fields
+	  (rb_vm_add_root_module): ditto
 
-Sat Jan  7 22:25:50 2012  Narihiro Nakamura  <authornari@gmail.com>
+Fri Jul 03 20:05:10 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* gc.c: use Bitmap Marking algorithm to avoid copy-on-write of
-	  memory pages. See [ruby-dev:45085] [Feature #5839]
-	  [ruby-core:41916].
+	* method.h: introduce rb_callable_method_entry_t to remove
+	  rb_control_frame_t::klass.
+	  [Bug #11278], [Bug #11279]
 
-	* include/ruby/ruby.h : FL_MARK rename to FL_RESERVED1.
+	  rb_method_entry_t data belong to modules/classes.
+	  rb_method_entry_t::owner points defined module or class.
 
-	* node.h : ditto.
+	    module M
+	      def foo; end
+	    end
 
-	* debug.c : ditto.
+	  In this case, owner is M.
 
-	* object.c (rb_obj_clone): FL_MARK move to a bitmap.
+	  rb_callable_method_entry_t data belong to only classes.
+	  For modules, MRI creates corresponding T_ICLASS internally.
+	  rb_callable_method_entry_t can also belong to T_ICLASS.
 
-	* class.c (rb_singleton_class_clone): ditto.
+	  rb_callable_method_entry_t::defined_class points T_CLASS or
+	  T_ICLASS.
+	  rb_method_entry_t data for classes (not for modules) are also
+	  rb_callable_method_entry_t data because it is completely same data.
+	  In this case, rb_method_entry_t::owner == rb_method_entry_t::defined_class.
 
-Sat Jan  7 00:47:07 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	  For example, there are classes C and D, and includes M,
 
-	* configure.in: always define CANONICALIZATION_FOR_MATHN.
-	  [ruby-dev:45100] [Bug #5852]
+	    class C; include M; end
+	    class D; include M; end
 
-Fri Jan  6 23:11:20 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	  then, two T_ICLASS objects for C's super class and D's super class
+	  will be created.
 
-	* include/ruby/version.h: RUBY_API_VERSION 2.0.0
+	  When C.new.foo is called, then M#foo is searched and
+	  rb_callable_method_t data is used by VM to invoke M#foo.
 
-Fri Jan  6 12:24:11 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	  rb_method_entry_t data is only one for M#foo.
+	  However, rb_callable_method_entry_t data are two (and can be more).
+	  It is proportional to the number of including (and prepending)
+	  classes (the number of T_ICLASS which point to the module).
 
-	* object.c (rb_inspect): raises Encoding::CompatibilityError if the
-	  result is incompatible with the default external encoding.
-	  [ruby-core:41931] [Bug #5848]
+	  Now, created rb_callable_method_entry_t are collected when
+	  the original module M was modified. We can think it is a cache.
 
-Thu Jan  5 15:26:15 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	  We need to select what kind of method entry data is needed.
+	  To operate definition, then you need to use rb_method_entry_t.
 
-	* win32/win32.c (check_valid_dir): strict checking of root.
-	  GetDriveType() succeeds with non root directory as the argument,
-	  even if MSDN says that the API needs the root directory.
-	  this patch fixes a failure of test/ruby/test_file_exhaustive.rb.
+	  You can access them by the following functions.
 
-Thu Jan  5 12:15:55 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	  * rb_method_entry(VALUE klass, ID id);
+	  * rb_method_entry_with_refinements(VALUE klass, ID id);
+	  * rb_method_entry_without_refinements(VALUE klass, ID id);
+	  * rb_resolve_refined_method(VALUE refinements, const rb_method_entry_t *me);
 
-	* file.c (rb_file_join): separator is appended by array length - 1
-	  times. patched by Benoit Daloze [ruby-core:41901] [Bug #5841]
+	  To invoke methods, then you need to use rb_callable_method_entry_t
+	  which you can get by the following APIs corresponding to the
+	  above listed functions.
 
-Thu Jan  5 11:47:54 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+	  * rb_callable_method_entry(VALUE klass, ID id);
+	  * rb_callable_method_entry_with_refinements(VALUE klass, ID id);
+	  * rb_callable_method_entry_without_refinements(VALUE klass, ID id);
+	  * rb_resolve_refined_method_callable(VALUE refinements, const rb_callable_method_entry_t *me);
 
-	* lib/uri/common.rb (URI::Parser#initialize_regexp):
-	  use \A \z instead of ^ $. [Bug #5843]
+	  VM pushes rb_callable_method_entry_t, so that rb_vm_frame_method_entry()
+	  returns rb_callable_method_entry_t.
+	  You can check a super class of current method by
+	  rb_callable_method_entry_t::defined_class.
 
-Wed Jan  4 17:55:53 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* method.h: renamed from rb_method_entry_t::klass to
+	  rb_method_entry_t::owner.
 
-	* array.c (rb_ary_sample): add example for Array#sample
-	  based on patch from https://github.com/ruby/ruby/pull/74
+	* internal.h: add rb_classext_struct::callable_m_tbl to cache
+	  rb_callable_method_entry_t data.
 
-Wed Jan  4 14:24:33 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  We need to consider about this field again because it is only
+	  active for T_ICLASS.
 
-	* string.c (str_nth_len): count ascii-only run at the end.  this
-	  bug appears only when single-byte-optimization is disabled due
-	  to unknown coderange.  [ruby-core:41896] [Bug #5836]
+	* class.c (method_entry_i): ditto.
 
-Wed Jan  4 11:32:07 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* class.c (rb_define_attr): rb_method_entry() does not takes
+	  defined_class_ptr.
 
-	* win32/win32.c (check_valid_dir): special case for a root directory.
-	  Reported by Masateru OKAMOTO at [Bug #5819].
+	* gc.c (mark_method_entry): mark RCLASS_CALLABLE_M_TBL() for T_ICLASS.
 
-Wed Jan  4 00:19:54 2012  Kouhei Sutou  <kou@cozmixng.org>
+	* cont.c (fiber_init): rb_control_frame_t::klass is removed.
 
-	* lib/rexml/parsers/baseparser.rb: use private instead of _xxx
-	  method name. This is Ruby code not Python code.
-	  refs #5696
+	* proc.c: fix `struct METHOD' data structure because
+	  rb_callable_method_t has all information.
 
-Tue Jan  3 23:57:37 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* vm_core.h: remove several fields.
+	  * rb_control_frame_t::klass.
+	  * rb_block_t::klass.
 
-	* lib/rexml/parsers/baseparser.rb: rexml BaseParser uses
-	  instance_eval unnecessarily on listener add.
-	  patch from Charles Nutter. [Bug #5696] [ruby-core:41437]
+	  And catch up changes.
 
-Tue Jan  3 20:44:13 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* eval.c: catch up changes.
 
-	* README: add comment for Git user. patch from Arun Agrawal.
-	* README.ja: ditto.
+	* gc.c: ditto.
 
-Tue Jan  3 15:58:22 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* insns.def: ditto.
 
-	* thread.c: changed documentation for "thread-local" variables.
-	  patch from Julien Ammous.
+	* vm.c: ditto.
 
-Tue Jan  3 15:50:12 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* vm_args.c: ditto.
 
-	* process.c: Fix typo. patch from Aviv Ben-Yosef.
+	* vm_backtrace.c: ditto.
 
-Tue Jan  3 13:43:37 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* vm_dump.c: ditto.
 
-	* tool/merger.rb: allow r0123 style revision number.
+	* vm_eval.c: ditto.
 
-Tue Jan  3 11:17:55 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* vm_insnhelper.c: ditto.
 
-	* tool/merger.rb (#version_up): version.h date should be Japanese
-	  locale date.
+	* vm_method.c: ditto.
 
-Mon Jan  2 22:08:00 2012  Akinori MUSHA  <knu@iDaemons.org>
+Fri Jul  3 14:30:18 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* tool/file2lastrev.rb (VCS::detect): Add support for Subversion
-	  1.7 which adopted a whole new working directory structure.
+	* win32/file.c: some mingw compilers need a tweek for the
+	  declarations of _wfreopen_s.  [Bug #11320]
 
-	* tool/file2lastrev.rb (VCS::detect): Simply use .each instead of
-	  .sort.reverse_each which looks too arbitrary.  If you want SVN
-	  to be tried first, then you just have to register it first as it
-	  is right now.
+Fri Jul  3 12:25:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Jan  2 20:53:36 2012  Tanaka Akira  <akr@fsij.org>
+	* transcode.c (rb_econv_set_replacement): target encoding name can
+	  be empty now.  [ruby-core:69841] [Bug #11324]
 
-	* lib/securerandom.rb (random_bytes): use IO#read instead of
-	  IO#readpartial to make the intent more clear.
+Fri Jul  3 07:21:06 2015  Eric Wong  <e@80x24.org>
 
-Mon Jan  2 15:26:39 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* benchmark/bm_io_nonblock_noex.rb: new benchmark
+	* ext/openssl/ossl_ssl.c (no_exception_p): new function
+	  (ossl_start_ssl): adjust for no_exception_p
+	  (ossl_ssl_connect): adjust ossl_start_ssl call
+	  (ossl_ssl_connect_nonblock): ditto
+	  (ossl_ssl_accept): ditto
+	  (ossl_ssl_accept_nonblock): ditto
+	  (ossl_ssl_read_internal): adjust for no_exception_p
+	  (ossl_ssl_write_internal): ditto
+	  (ossl_ssl_write): adjust ossl_write_internal call
+	  (ossl_ssl_write_nonblock): ditto
+	* ext/stringio/stringio.c (strio_read_nonblock):
+	  delay exception check
+	* io.c (no_exception_p): new function
+	  (io_getpartial): call no_exception_p
+	  (io_readpartial): adjust for io_getpartial
+	  (get_kwargs_exception): remove
+	  (io_read_nonblock): adjust for io_getpartial,
+	  check no_exception_p on EOF
+	  (io_write_nonblock): call no_exception_p
+	  (rb_io_write_nonblock): do not check `exception: false'
+	  (argf_getpartial): adjust for io_getpartial
+	  [ruby-core:69778] [Feature #11318]
 
-	* test/ruby/test_object.rb (test_send_with_block): add a normal case.
+Fri Jul  3 07:13:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Jan  2 15:18:54 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* dir.c (replace_real_basename): Win32 API does not set errno, get
+	  the last error by GetLastError() and map to errno.  [Bug #10015]
 
-	* test/ruby/test_object.rb (test_send_with_block): moved from
-	  bootstraptest/test_flow.rb.
+Thu Jul  2 21:32:06 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Jan  2 15:10:11 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	* dir.c (replace_real_basename): show warnings at errors.
+	  [Bug #10015]
 
-	* lib/test/unit/parallel.rb: use pack("m0") instead of
-	  pack("m").gsub("\n","").
-	* lib/test/unit.rb (Test::Unit::Runner::Worker#run): ditto.
+Thu Jul  2 18:39:20 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Jan  2 15:05:09 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	* gc.c: remove `#define RGENGC_OBJ_INFO 1' line introduced to
+	  debug Bug #11244.
 
-	* lib/test/unit.rb (Test::Unit::Runner::Worker#run): use
-	  File.basename with suffix instead of gsub.
+Thu Jul  2 18:34:26 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Jan  2 14:55:28 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	* gc.c (rb_raw_obj_info): separated from rb_obj_info().
+	  Fill internal object information into passed buffer.
 
-	* lib/test/unit.rb (Test::Unit::Runner#_run_parallel): find may
-	  return nil and nil can not dup.
+	* gc.h: declare rb_raw_obj_info().
 
-Sun Jan  1 12:23:10 2012  Akinori MUSHA  <knu@iDaemons.org>
+Thu Jul  2 16:15:04 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/shellwords.rb (Shellwords#shellescape): Drop the //n flag
-	  that only causes warnings with no real effect.  [Bug #5637]
+	* dir.c (replace_real_basename): update path type by the target
+	  attributes if possible, to improve the performance.  [Bug #10015]
 
-Sat Dec 31 06:28:37 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Jul  2 14:45:53 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* thread.c (rb_barrier_waiting): save the number of waiting threads
-	  in RBASIC()->flags. [ruby-dev:45002] [Bug #5768]
+	* st.c: get rid of VC++'s warnings of C4700 (uninitialized local
+	  variable used).  I think that these are wrong, but should shut them
+	  up.
 
-	* thread.c (rb_barrier_wait): increment and decrement around
-	  rb_mutex_lock, and use rb_barrier_waiting().
+Thu Jul  2 14:15:50 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* thread.c (rb_barrier_release): use rb_barrier_waiting().
+	* lib/rubygems.rb (Gem.load_path_insert_index): search
+	  @gem_prelude_index first.
 
-	* thread.c (rb_barrier_destroy): ditto.
+	* lib/rubygems/test_case.rb (Gem::TestCase#setup): keep already
+	  expanded paths to preserve instance variables.
 
-Mon Dec 26 17:20:10 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Jul  2 14:12:01 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm.c (vm_exec): add guard to prevent optimization for LLVM clang.
+	* ruby.c (process_options): also copy initial load path marks at
+	  setting load paths encoding.
 
-Fri Dec 30 17:01:12 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+Thu Jul  2 12:26:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_eval.c (rb_f_send): fix obj.send() documentation issue.
-	 [Bug #5125] [ruby-core:38633]
+	* test/rubygems/test_gem_server.rb (process_based_port): use
+	  dynamically chosen port numbers to get rid of conflicts.
 
-Thu Dec 29 22:36:16 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+Thu Jul  2 11:58:59 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* lib/test/unit.rb (Test::Unit::Runner::Worker#_run_parallels): fix
-	  premature exit when all workers' status are :ready or :prepare.
-	  [ruby-dev:45061] [Bug #5822]
+	* test/rubygems/test_gem_specification.rb: skip tests which the
+	  platform does not permit the filename of its test file.
 
-Thu Dec 29 01:51:13 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+Thu Jul  2 11:36:20 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* include/ruby/ruby.h: fix #error pragma. LLP64 platform is supported.
+	* test/rubygems/test_gem_resolver_git_specification.rb: require
+	  rubygems/installer.rb before Gem::TestCase#setup runs, otherwise
+	  as Gem::TestCase#teardown restores $LOADED_FEATURES to the state
+	  at that time, the requiring the file in GitSpecification#install
+	  method causes a lot of constant redefinitions.
 
-	* include/ruby/st.h: ditto.
+Thu Jul  2 10:43:36 2015  Eric Wong  <e@80x24.org>
 
-Wed Dec 28 11:22:45 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/socket/rubysocket.h: flags for common socket families
+	  (rsock_getfamily): update signature
+	* include/ruby/io.h: comment socket FMODE flags
+	* ext/socket/init.c (rsock_getfamily): memoize family
+	* ext/socket/basicsocket.c: adjust rsock_getfamily calls
+	* ext/socket/ancdata.c: ditto
+	  [ruby-core:69713] [Feature #11298]
 
-	* lib/fileutils.rb (FileUtils::Entry_#entries): use utility method
-	  instead of typoed regexp.  [ruby-core:41829] [Bug #5817]
+Thu Jul  2 10:30:01 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Wed Dec 28 02:08:04 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* lib/rubygems/resolver.rb: fixed NameError of Gem::Util::NULL_DEVICE.
 
-	* vm_insnhelper.c (unknown_keyword_error): add GC guard to prevent
-	  intermediate object from GC.
+Thu Jul  2 09:51:44 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Dec 27 22:34:54 2011  Shota Fukumori  <sorah@tubusu.net>
+	* lib/rubygems/resolver.rb: fix error of null device reference with DOSISH
+	  platform.
 
-	* lib/test/unit.rb (Worker#close): "closing IO if IO is closed"
-	  should be "closing IO if IO isn't closed"
+Thu Jul  2 06:49:44 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Dec 27 22:04:27 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/rubygems: Update to RubyGems HEAD(c202db2).
+	  this version contains many enhancements see http://git.io/vtNwF
+	* test/rubygems: ditto.
 
-	* st.c (st_update): new function to lookup the given key and
-	  update the value.  [ruby-dev:44998]
+Wed Jul  1 23:50:34 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-Tue Dec 27 21:17:33 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/net/http/test_httpresponse.rb
+	(HTTPResponseTest#test_read_body_content_encoding_deflate_uppercase):
+	fix a failure without zlib.
 
-	* node.h (rb_args_info): change pre_args_num and post_args_num as
-	  int, to match with rb_iseq_t.
+Wed Jul  1 10:54:56 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* parse.y (new_args_gen): check overflow.
+	* Add test for Enumerable#none? [fix GH-950] Patch by @yui-knk
 
-Mon Dec 26 22:38:35 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+Wed Jul  1 09:30:36 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_insnhelper.c (unknown_keyword_error): make it kind a error
-	  message when unknown keyword is given.  It require more work.
-	  See [ruby-core:40518] and [ruby-core:40541] in detail.
+	* struct.c (struct_set_members): hide internal back_members
+	  object, and members object does not need to be duped as it
+	  should be frozen and hidden.
 
-Mon Dec 26 22:31:07 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+Wed Jul  1 09:28:47 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_core.h (struct rb_iseq_struct), compile.c (iseq_set_arguments),
-	  iseq.c (rb_iseq_parameters), vm_insnhelper.c
-	  (vm_callee_setup_arg_complex): support Method#parameters for keyword
-	  arguments.  The provisional spec is what Benoit Daloze proposed.
-	  [ruby-core:40541]
+	* struct.c (struct_member_pos): revert r51080 to fix other
+	  implicit conversions but cast the return value to fix the
+	  previous implicit conversion.
 
-	* test/ruby/test_keyword.rb: add a test for above.
+Wed Jul  1 08:47:24 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Mon Dec 26 22:15:27 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+	* struct.c (struct_member_pos): avoid implicit conversion loses
+	  integer precision: 'long' to 'int'.
 
-	* vm_core.h (struct rb_iseq_struct), compile.c (iseq_set_arguments,
-	  iseq_compile_each), vm_insnhelper.c (vm_callee_setup_arg_complex):
-	  implement keyword arguments.  See [ruby-core:40290]
-	  The feature is promised to be included in 2.0, but the detail spec
-	  is still under discussion; this commit is a springboard for further
-	  discussion.  Please try it and give us feedback.
-	  This commit includes fixes for some problems reported by Benoit
-	  Daloze <eregontp AT gmail.com> [ruby-core:40518] and Marc-Andre
-	  Lafortune <ruby-core-mailing-list AT marc-andre.ca>
-	  [ruby-core:41772].
+Wed Jul  1 05:57:03 2015  Eric Wong  <e@80x24.org>
 
-	* iseq.c (iseq_free, prepare_iseq_build): bookkeeping.
+	* vm_method.c (rb_add_method_iseq): add RB_GC_GUARD
+	* class.c (clone_method): remove RB_GC_GUARD
+	* struct.c (define_aref_method): ditto
+	  (define_aset_method): ditto
+	* vm.c (vm_define_method):
+	* iseq.c (rb_iseq_clone): add RB_GC_GUARD
 
-	* test/ruby/test_keyword.rb: add tests for keyword arguments.
+Wed Jul  1 05:43:58 2015  Eric Wong  <e@80x24.org>
 
-	* test/ripper/dummyparser.rb (class DummyParser): temporal fix for
-	  ripper test.
+	* struct.c (AREF_HASH_THRESHOLD): new macro
+	  (id_back_members): new ID
+	  (struct_member_pos_ideal): new function
+	  (struct_member_pos_probe): ditto
+	  (struct_set_members): ditto
+	  (struct_member_pos): ditto
+	  (rb_struct_getmember): use struct_member_pos for O(1) access
+	  (rb_struct_aref_sym): ditto
+	  (rb_struct_aset_sym): ditto
+	  (setup_struct): call struct_set_members
+	  (struct_define_without_accessor): ditto
+	  (Init_Struct): initialize __members_back__
+	  [ruby-core:66851] [ruby-core:69705] [ruby-core:69821]
 
-Mon Dec 26 22:00:17 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+Tue Jun 30 23:12:08 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* node.h, node.c, parse.y: implement a parser part for keyword
-	  arguments.
-	  This is a preparation for keyword argument (see [ruby-core:40290]).
+	* io.c (rb_io_reopen): FilePathValue() ensures the path
+	  NUL-terminated and frozen, so it is unnecessary to make it shared.
 
-	* gc.c (gc_mark_children): bookkeeping.
+Tue Jun 30 23:11:53 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Dec 26 21:03:18 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+	* dir.c (check_dirname): ensure path name NUL-terminated for
+	  SHARABLE_MIDDLE_SUBSTRING.
 
-	* node.h, parse.y (new_args_gen), compile.c (iseq_set_arguments): use
-	  struct rb_args_info instead of NODEs.
-	  This is a preparation for keyword argument (see [ruby-core:40290]).
+	* io.c (rb_sysopen): ditto.
 
-	* node.c (dump_node), gc.c (gc_mark_children, obj_free): bookkeeping.
+Tue Jun 30 18:38:16 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Mon Dec 26 20:59:51 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+	* win32/file.c (rb_freopen): need to terminate by NUL.
 
-	* node.h, parse.y (lambda, f_larglist): remove NEW_LAMBDA hack.
-	  This is a preparation for keyword argument (see [ruby-core:40290]).
+Tue Jun 30 17:28:25 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Dec 26 22:01:19 2011  Hiroshi Shirosaki <h.shirosaki@gmail.com>
+	* io.c (rb_io_reopen): freopen(3) with OS encoding path.
+	  [ruby-core:69780] [Bug #11320]
 
-	* io.c (rb_sys_fail_path): move the definition.
-	  Move above for using it in set_binary_mode_with_seek_cur().
+	* win32/file.c (rb_freopen): wrapper of wchar version freopen(3).
+	  use _wfreopen_s() if available.
 
-	* io.c (set_binary_mode_with_seek_cur): fix improper seek cursor.
-	  Seeking file cursor with setting binary mode has possibility to
-	  cause infinite loop. Fixed the bug and refined error handling.
-	  Introduced at r34043.
+Tue Jun 30 08:24:08 2015  Eric Wong  <e@80x24.org>
 
-	  And cleanups as below.
-	  Remove unnecessary parentheses of `fptr`.
-	  Use return value of setmode().
+	* io.c (rb_io_oflags_modestr): handle O_TRUNC correctly
+	* test/ruby/test_io.rb (test_reopen_stdio): new test
+	  Patch-by: cremno phobia <cremno@mail.ru>
+	  [ruby-core:69779] [Bug #11319]
 
-	* test/ruby/test_io_m17n.rb
-	  (TestIO_M17N#test_seek_with_setting_binmode): add a test for above.
-	  [ruby-core:41671] [Bug #5714]
+Tue Jun 30 02:47:02 2015  Eric Wong  <e@80x24.org>
 
-Mon Dec 26 17:01:14 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* include/ruby/st.h (struct st_table): hide struct list_head
+	* st.c (struct st_table_entry): adjust struct
+	  (head, tail): remove shortcut macros
+	  (st_head): new wrapper function
+	  (st_init_table_with_size): adjust to new struct and API
+	  (st_clear): ditto
+	  (add_direct): ditto
+	  (unpack_entries): ditto
+	  (rehash): ditto
+	  (st_copy): ditto
+	  (remove_entry): ditto
+	  (st_shift): ditto
+	  (st_foreach_check): ditto
+	  (st_foreach): ditto
+	  (get_keys): ditto
+	  (get_values): ditto
+	  (st_values_check): ditto
+	  (st_reverse_foreach_check): ditto (unused)
+	  (st_reverse_foreach): ditto (unused)
+	  [ruby-core:69726] [Misc #10278]
 
-	* common.mk (LIBRUBY_A): depends on main.o since r33774.
-	  [ruby-core:41786] [Bug #5796]
+Mon Jun 29 17:38:01 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Dec 26 13:07:08 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* insns.def (defineclass): do not quote unprintable characters at
+	  raising an exception.
 
-	* test/ruby/test_io.rb (TestIO#test_autoclose): Tempfile.new doesn't
-	  accept the block argument.
+Mon Jun 29 16:01:24 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Mon Dec 26 13:06:52 2011  Shota Fukumori  <sorah@tubusu.net>
+	* lib/net/http/response.rb (inflater): CONTENT_ENCODING can be upper
+	  case. [ruby-core:69670] [Bug #11285] patched by Andy Chu
 
-	* lib/test/unit.rb: Avoid zombie processes on "--separate" option
-	  added at r34121.
+Mon Jun 29 14:50:08 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Mon Dec 26 04:01:23 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* eval.c (add_activated_refinement): should not include the original
+	  class.
 
-	* ext/openssl/ossl_cipher.c: Update and complete documentation.
+Mon Jun 29 12:09:10 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sun Dec 25 23:16:11 2011  Shota Fukumori  <sorah@tubusu.net>
+	* README.md: tweak styles. [fix GH-945][ci skip] Patch by @bryndyment
 
-	* test/testunit/test_parallel.rb (test_separate): Test for "--separate"
-	  option (r34121)
+Mon Jun 29 07:23:55 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Dec 25 22:39:49 2011  Shota Fukumori  <sorah@tubusu.net>
+	* template/sizes.c.tmpl: extract RUBY_DEFINT to define sizes of
+	  types checked by configure.in, and fix size of intptr_t in
+	  universal binary.
 
-	* lib/test/unit.rb (_run_parallel):
-	  New option "--separate" for test/unit; when running tests with this
-	  option, a job process will be restarted after one test file has done.
-	  This means all test files will run with separated process.
+Mon Jun 29 02:10:10 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/test/unit/parallel.rb: Fix for above. Now parallel.rb puts
-	  "ready!" for first ready, "ready" for afters.
+	* insns.def (defineclass): preserve encoding of name in error
+	  messages for super class mismatch.
 
-Sun Dec 25 00:02:15 2011  Luis Lavena  <luislavena@gmail.com>
+	* insns.def (defineclass): preserve encoding of name in error
+	  messages for non-class super.
 
-	* configure.in: change --with-ntver to --with-winnt-ver to be more
-	  descriptive in the context. [ruby-core:41794]
+	* insns.def (defineclass): preserve encoding of name in error
+	  messages when already defined but type mismatch.
 
-Sat Dec 24 23:25:15 2011  Luis Lavena  <luislavena@gmail.com>
+Sun Jun 28 12:07:35 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* configure.in: add --with-ntver option to match win32/configure.bat
-	  functionality. Set 0x0501 as default. [ruby-core:35010]
-	  [ruby-core:35035]
+	* class.c (rb_define_class_id_under): raise TypeError exception
+	  same as ruby level class definition when superclass mismatch.
 
-Sat Dec 24 12:38:53 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Jun 14 19:02:03 2015  Benoit Daloze  <eregontp@gmail.com>
 
-	* proc.c (proc_call): get rid of optimization-out by clang.
+	* lib/net/ftp.rb (makeport): close the TCPServer
+	  when sending the port fails.
 
-	* proc.c (rb_proc_call, rb_proc_call_with_block): ditto.
+	* test/net/ftp/test_ftp.rb: test for above.
 
-Sat Dec 24 10:56:32 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jun 26 12:48:37 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/readline/readline.c (readline_readline): check if outstream
-	  is closed to get rid of a bug of readline 6.  [ruby-dev:45043]
-	  [Bug #5803]
+	* transcode.c (load_transcoder_entry): fix transcoder loading race
+	  condition, by waiting in require.  [ruby-dev:49106] [Bug #11277]
 
-Sat Dec 24 06:59:49 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jun 26 07:53:56 2015  Eric Wong  <e@80x24.org>
 
-	* test/readline/test_readline.rb (test_line_buffer__point): use
-	  lambda not to exit entire method by "return".  or "next" for
-	  proc.  [ruby-dev:45042] [Bug #5802]
+	* enum.c (enum_minmax): simplify return value creation
+	* test/ruby/test_enum.rb: test behavior on empty
+	* hash.c (rb_hash_fetch_m): remove unnecessary volatile since r41597
+	  (env_reject_bang): trade volatile for GC guard
+	  (env_select): ditto
+	  (env_select_bang): ditto
+	  (env_keep_if): ditto
+	  (rb_env_clear): ditto
 
-Sat Dec 24 01:20:39 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+Thu Jun 25 21:24:28 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* vm_eval.c (send_internal): PASS_PASSED_BLOCK_TH must be placed
-	  just before calling rb_call0.
+	* test/-ext-/popen_deadlock/test_popen_deadlock.rb: test [Bug #11265]
 
-	* bootstraptest/test_flow.rb: add a test for above.
+	* ext/-test-/popen_deadlock/infinite_loop_dlsym.c: new ext to call
+	  dlsym(3) infinitely without GVL, used in the above test.
 
-Sat Dec 24 00:55:16 2011  Tanaka Akira  <akr@fsij.org>
+	* ext/-test-/popen_deadlock/extconf.rb: extconf.rb for the above
+	  ext. Currently, only enabled on Solaris (main target) and Linux
+	  (as a reference platform and for debugging the ext).
 
-	* lib/tempfile.rb (Tempfile#initialize): warn if a block is given.
+Thu Jun 25 19:24:25 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-Fri Dec 23 16:14:30 2011  TAKAO Kouji  <kouji@takao7.net>
+	* configure.in: not to use vfork on Solaris to avoid deadlock
+	  occurred in vfork(2) with multi-threading and dynamic linker
+	  on Solaris. [Bug #11265] [ruby-dev:49089]
 
-	* ext/readline/readline.c (readline_attempted_completion_function):
-	  in Readline module with GNU Readline 6 case, Readline module
-	  resets completion_append_character to " ", after it executes
-	  completion. So, Readline module stores
-	  completion_append_character, and Readline module always sets it
-	  after Readline module executes completion. [ruby-dev:43456]
-	  [Feature #4635]
+Thu Jun 25 18:25:41 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-Fri Dec 23 15:59:05 2011  TAKAO Kouji  <kouji@takao7.net>
+	* test/lib/envutil.rb (Test::Unit::Assertions#assert_no_memory_leak):
+	  NO_MEMORY_LEAK_ENVS is moved to Memory::NO_MEMORY_LEAK_ENVS
+	  to reduce child executions during test-all on Solaris.
 
-	* ext/readline/readline.c (Init_readline): libedit check
-	  rl_getc_function only when rl_initialize() is called, and
-	  using_history() call rl_initialize(). This assignment should be
-	  placed before using_history(). [ruby-core:40641] [Bug #5539]
+	* test/lib/memory_status.rb (Memory::NO_MEMORY_LEAK_ENVS): ditto.
 
-Fri Dec 23 10:14:47 2011  Tanaka Akira  <akr@fsij.org>
+Thu Jun 25 17:32:33 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* test/thread/test_queue.rb (test_thr_kill): show the number of loop
-	  run when the test failed.
+	* vm_method.c (rb_method_entry_create): need to call
+	  method_definition_reset() if def is given.
 
-Fri Dec 23 09:23:48 2011  Tanaka Akira  <akr@fsij.org>
+	  Actually, `me' is a new object, so we don't need to call it.
+	  It is just to make sure.
 
-	* test/test_pty.rb (test_pty_check_default): call PTY.check until
-	  "cat" command is finished.
+	* vm_method.c (method_definition_reset): remove duplicated insertion.
 
-Fri Dec 23 06:03:00 2011  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	* vm_method.c (rb_method_entry_clone): assign dst->def here,
+	  not in method_definition_reset().
 
-	* common.mk: add "check succeeded" message.
+Thu Jun 25 16:44:54 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* README, README.ja: follow above change.
+	* vm_method.c: make a rb_method_definition_t data (def) *after* making
+	  a rb_method_entry_t data (me).
 
-Fri Dec 23 06:00:39 2011  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	  Normally, `me' points `def'. Some Ruby objects pointed from `def'
+	  and objects are marked by `me' (mark_method_entry() in gc.c).
+	  However, `def' is built before making a `me', then nobody can mark
+	  objects pointed from `def' before making (and pointing from) `me'.
 
-	* ext/bigdecimal/bigdecimal.h: add satisfy cc-mode comment.
-	* util.c: ditto.
+	  I hope this patch solve #11244.
 
-Fri Dec 23 00:08:25 2011  Tanaka Akira  <akr@fsij.org>
+	* vm_method.c: remove `rb_' prefix from some static functions.
 
-	* test/test_pty.rb (test_pty_check_default): "cat" may not terminated
-	  in the 0.1 second.
+	* method.h (rb_method_entry_create): constify
 
-Thu Dec 22 23:37:25 2011  Tanaka Akira  <akr@fsij.org>
+	* gc.c (mark_method_entry): add checking `def' and
+	  `def->body.iseq.iseqptr' availability because they can be NULL.
 
-	* test/ruby/test_thread.rb (test_condvar_timed_wait): don't test the
-	  maximum sleep time.  Ruby is not a real-time system.
+Thu Jun 25 14:14:16 2015  takiy33  <takiy33@gmail.com>
 
-Thu Dec 22 22:37:45 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* test/test_prime.rb (test_eratosthenes_works_fine_after_timeout):
+	  use spaces instead of TABs in ruby codes.  [Fix GH-944]
 
-	* thread_pthread.c (ping_signal_thread_list): remove return value.
-	* thread_pthread.c (check_signal_thread_list): add a new function to
-	  check if signal thread list is empty.
-	* thread_pthread.c (thread_timer): check signal thread list after
-	  timer_thread_function(). main thread might be added into signal thread
-	  list during timer_thread_function().
+Thu Jun 25 07:08:35 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Dec 22 00:40:24 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* gc.c (obj_info, method_type_name): show method type name in a string
+	  instead of a number.
 
-	* ext/bigdecimal/bigdecimal.c (VpMult, VpCtoV, VpSqrt): remove assigned
-	  but unused variables.
+Thu Jun 25 06:49:25 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Dec 21 18:28:22 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* gc.c (obj_info): show more details for T_IMEMO/imemo_ment.
 
-	* common.mk (newline.c, miniprelude.c): revert r33949 because the change
-	  broke mswin build, and the changer said no reason about the change.
-	  [ruby-dev:45016] [Bug #5783]
+Thu Jun 25 06:40:46 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Dec 21 12:35:24 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_method.c (rb_method_definition_reset): need a WB for
+	  VM_METHOD_TYPE_ATTRSET.
 
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_s_allocate): follow
-	  Allocation Framework.  [Bug #5775]
+Thu Jun 25 03:33:21 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Dec 21 02:25:36 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+	* gc.c (RGENGC_OBJ_INFO, obj_info): add a macro to enable/disable
+	  rich obj_info() output.
 
-	* ext/psych/emitter.c: fixing clang warnings. Thanks Joey!
+	  At the default, the value of RGENGC_OBJ_INFO is
+	  (RGENGC_DEBUG | RGENGC_CHECK_MODE).
 
-Wed Dec 21 01:06:00 2011  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	* gc.c (RGENGC_OBJ_INFO): force enable it to debug #11244.
 
-	* ext/bigdecimal/README: Update redmine.ruby-lang.org to bugs.ruby-lang.org
-	* ext/socket/ancdata.c: ditto
-	* test/-ext-/wait_for_single_fd/test_wait_for_single_fd.rb: ditto
-	* test/syck/test_yaml.rb: ditto
-	* doc/ChangeLog-1.9.3: ditto
+	* gc.c (gc_mark_ptr): print more details with obj_info().
 
-Tue Dec 20 23:50:12 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+	* gc.c (gc_mark_children): remove useless debug prints.
 
-	* PStore content update perf optimization. Patch by Masaki Matsushita.
-	  See #5248.
+Thu Jun 25 02:40:33 2015  Eric Wong  <e@80x24.org>
 
-	* lib/pstore.rb (save_data):
+	* ext/openssl/ossl_ssl.c (ossl_ssl_read_internal):
+	  do not process kwargs in blocking mode
+	* test/openssl/test_ssl.rb: test sysread
 
-	  * Delete inadequate Marshal check.
+Wed Jun 24 16:54:11 2015  Koichi Sasada  <ko1@atdot.net>
 
-	  * Deferred file truncation: when writing the new content, truncate
-	    the saved file to the data size after writing the data, instead of
-	    truncating whole bytes before writing data.
+	* gc.c (gc_mark_children): add additional debug code for #11244.
 
-	  * Deferred MD5 calculation: when comparing MD5 hash to check the
-	    content modification, calculate MD5 hash of new data iif the
-	    content length is differ from the old one.
+Wed Jun 24 16:05:42 2015  Eric Wong  <e@80x24.org>
 
-	  * Compare content size with String#bytesize instead of String#size.
+	* string.c (rb_str_justify): use RB_GC_GUARD
 
-Tue Dec 20 21:00:30 2011  Tadayoshi Funaba  <tadf@dotrb.org>
+Wed Jun 24 14:25:17 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/date/date_core.c: uses to_integer instead.
-	* test/date/test_switch_hitter.rb: added a test.
+	* gc.c (gc_mark_ptr): add a check code for #11244.
 
-Tue Dec 20 15:04:18 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+	  It should be removed later. But we can remain this check
+	  because it is only a branch.
 
-	* Make sure to clear $! when ignoring an exception
+Wed Jun 24 12:49:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/openssl/ossl.c (ossl_pem_passwd_cb0, ossl_verify_cb):
-	  pem_passwd_cb and verify_cb ignores the exception raised in a
-	  callback proc so it should clear $! for subsequent execution.
+	* string.c (rb_fstring_cstr): new function to make a fstring from
+	  a string literal.
 
-	  That's said, both subsequent processes for pem_passwd_cb and
-	  verify_cb raises another exception before leaking $! to Ruby world.
-	  We cannot test this fix in Ruby land.
+	* internal.h (rb_fstring_lit): new macro to make a fstring from a
+	  string literal.
 
-	* test/openssl/test_pkey_rsa.rb
-	  (test_read_private_key_pem_pw_exception): Test for pem_passwd_cb +
-	  exception.
+	* include/ruby/intern.h (rb_strlen_lit): new macro to get the
+	  length of a string literal, borrowed from mruby/mruby@e4afd53.
 
-Tue Dec 20 11:49:13 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jun 24 12:21:16 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* test/date/test_date_base.rb (test_jd): tests for
-	  [ruby-dev:45008].
+	* re.c: Update documentation for Regexp class.
+	  [fix GH-937][ci skip] Patch by @davydovanton
 
-Tue Dec 20 10:20:48 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Wed Jun 24 09:23:03 2015  Eric Wong  <e@80x24.org>
 
-	* ext/date/date_core.c (wholenum): fix the type of the return value.
+	* variable.c (generic_ivar_set): remove FL_ABLE check
+	  (gen_ivar_copy): ditto
+	  [ruby-core:69715]
 
-Tue Dec 20 05:03:24 2011  Eric Hodel  <drbrain@segment7.net>
+Wed Jun 24 08:28:15 2015  Eric Wong  <e@80x24.org>
 
-	* README.ja:  Update redmine.ruby-lang.org to bugs.ruby-lang.org
-	* README:  ditto
-	* common.mk:  ditto
-	* man/erb.1:  ditto
-	* man/irb.1:  ditto
-	* man/ri.1:  ditto
-	* man/ruby.1:  ditto
-	* sparc.c:  ditto
-	* tool/install-sh:  ditto
+	* ext/socket/ancdata.c (bsock_recvmsg_internal): reduce stack use
+	  [ruby-core:69595] [Feature #11263]
 
-Tue Dec 20 02:15:18 2011  Tadayoshi Funaba  <tadf@dotrb.org>
+Tue Jun 23 14:32:42 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/date/date_core.c:  [ruby-dev:45008].
+	* error.c (name_err_receiver): raise ArgumentError if no receiver
+	  is available on this exception object.  [Feature #10881]
 
-Sun Dec 18 18:52:37 2011  Naohisa Goto  <ngotogenome@gmail.com>
+Tue Jun 23 09:48:34 2015  Eric Wong  <e@80x24.org>
 
-	* vm.c (vm_define_method): improve guard of iseq from GC.  Fix
-	  failure or segmentation fault in test_singleton_method(TestGc)
-	  on sparc Solaris10 compiled with Oracle Solaris Studio 12.2.
-	  [Bug #5762] [ruby-dev:45000] [Bug #4178]
+	* dir.c (check_dirname): avoid volatile, use return value
+	  (dir_s_chroot, dir_s_mkdir, dir_s_rmdir): adjust callers
 
-Sun Dec 18 14:34:31 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jun 23 06:37:10 2015  Eric Wong  <e@80x24.org>
 
-	* ext/bigdecimal/bigdecimal.c (Init_bigdecimal): does not follow
-	  allocation framework right now.  [ruby-core:41710] [Bug #5773]
+	* struct.c (struct_ivar_get): cache member definition in a subclass
+	  Thanks to Sokolov Yura aka funny_falcon <funny.falcon@gmail.com>
+	  in https://bugs.ruby-lang.org/issues/10585
 
-Sun Dec 18 12:42:48 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+Tue Jun 23 04:58:06 2015  Eric Wong  <e@80x24.org>
 
-	* ext/psych/lib/psych/visitors/to_ruby.rb: BigDecimals can be restored
-	  from YAML.
-	* ext/psych/lib/psych/visitors/yaml_tree.rb: BigDecimals can be dumped
-	  to YAML.
-	* test/psych/test_numeric.rb: tests for BigDecimal serialization
+	* benchmark/bm_vm2_struct_big_href_hi.rb: new benchmark
+	* benchmark/bm_vm2_struct_big_href_lo.rb: ditto
+	* benchmark/bm_vm2_struct_big_hset.rb: ditto
+	* benchmark/bm_vm2_struct_small_href.rb: ditto
+	* benchmark/bm_vm2_struct_small_hset.rb: ditto
+	  Thanks to Sokolov Yura aka funny_falcon <funny.falcon@gmail.com>
+	  in https://bugs.ruby-lang.org/issues/10585
 
-Sun Dec 18 12:03:13 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+Mon Jun 22 18:08:48 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* ext/psych/lib/psych/scalar_scanner.rb: Strings that look like dates
-	  should be treated as strings and not dates.
+	* test/lib/test/unit.rb (Test::Unit::Parallel#start_watchdog): removed
+	  because it has been meaningless since r36385. [Bug #11288]
 
-	* test/psych/test_scalar_scanner.rb: corresponding tests.
+	* test/lib/test/unit.rb (Test::Unit::Parallel#_run_parallel): delete
+	  lines related to the removed start_watchdog method
 
-Sun Dec 18 09:43:21 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+Sun Jun 21 23:52:46 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-	* test/thread/test_queue.rb (test_thr_kill): extend timeout.
-	  this test takes a long time at slow machine.
+	* NEWS: mention about Array#bsearch_index and Hash#fetch_values.
 
-Sun Dec 18 09:36:51 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+Sun Jun 21 23:46:27 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-	* test/ruby/envutil.rb (invoke_ruby): remove :timeout option before
-	  pass it to Kernel#spawn.
+	* NEWS: add a reference to a ticket.
 
-Fri Dec 16 17:18:38 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Jun 21 20:28:09 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* README, README.ja: 'make check' is preferable to 'make test'.
+	* internal.h (roomof): extract from type_roomof, and move from
+	  bignum.c.
 
-Thu Dec 15 23:16:13 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+Sun Jun 21 18:32:37 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* error.c (builtin_type_name): don't return pointer to the buffer of
-	  temporary String object.
+	* ruby_atomic.h (ATOMIC_PTR_CAS): define by generic CAS macro, not
+	  via size_t, to suppress a warning by mingw gcc.
 
-Thu Dec 15 17:56:58 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Jun 21 05:31:41 2015  Shota Fukumori  <her@sorah.jp>
 
-	* io.c (argf_type): make typed data.
+	* ext/objspace/objspace_dump.c(dump_object): Return empty JSON object when
+	  passed object is a special const, instead of SEGV.
+	  Based patch by Kohei Suzuki (eagletmt). [ruby-core:69692] [Bug #11291]
 
-Thu Dec 15 17:40:28 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/objspace/test_objspace.rb(test_dump_special_consts): Test for above fix.
 
-	* error.c (rb_check_type): fix typo.
 
-Thu Dec 15 14:48:35 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Jun 20 03:56:58 2015  Yusuke Endoh  <mame@ruby-lang.org>
 
-	* ext/strscan/strscan.c: use typed data with
-	  onig_region_memsize().
+	* enc/make_encmake.rb: the list of encoding extension libraries must
+	  not include encinit.c itself.  It caused "undefined reference to
+	  Init_encinit".
 
-Thu Dec 15 14:33:33 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Jun 20 02:03:53 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* error.c (rb_check_typeddata): refine error message with
-	  including expected struct name.
+	* process.c (rb_execarg_parent_start1): new macro ALWAYS_NEED_ENVP
+	  to generate envp_str anytime on Solaris 10 (or earlier version
+	  of Solaris) to avoid calling execv() which is async-signal unsafe
+	  on Solaris 10. [Bug #11265] [ruby-dev:49089]
 
-Thu Dec 15 13:15:51 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* process.c (exec_with_sh, proc_exec_cmd): On Solaris 10,
+	  because ALWAYS_NEED_ENVP is 1 and envp_str is always generated,
+	  execv() in exec_with_sh() and proc_exec_cmd() are never called.
+	  To guarantee this, execv() is replaced by a macro to print
+	  out error message on Solaris 10.
 
-	* regcomp.c (onig_region_memsize): implemented for memsize_of().
+	* process.c (proc_exec_sh): Because proc_exec_sh() may be called
+	  by rb_proc_exec() with envp_str = Qfalse, execl() is replaced
+	  by a macro that calls execle() with "extern char **environ"
+	  traditional global variable on Solaris 10.
+	  TODO: This may be unsafe and should be changed in the future.
+	  Although rb_proc_exec() is not used from inside current version
+	  of ruby, it may be called by third-party extensions.
 
-	* ext/objspace/objspace.c (memsize_of): use it.
+Sat Jun 20 01:10:13 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-Thu Dec 15 10:44:54 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* NEWS: mention about $SAFE.
 
-	* array.c (rb_ary_reject_bang, rb_ary_delete_if): update rdoc.
-	  documentation from Thomas Leitner <t_leitner AT gmx.at> in
-	  [ruby-core:41616].  [Bug #5752]
+Fri Jun 19 14:53:35 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Dec 15 10:10:43 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* proc.c (rb_mod_define_method): now requires a block direct to
+	  this method call.  [ruby-core:69655] [Bug #11283]
 
-	* test/ruby/test_require.rb (test_race_exception): get rid of
-	  not-guaranteed timing issue.  [ruby-core:41655] [Bug #5754]
+Fri Jun 19 13:54:43 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Dec 14 21:58:42 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* proc.c (rb_mod_define_method): get rid of inadvertent ID
+	  creations at error.
 
-	* test/ruby/test_io_m17n.rb
-	  (TestIO_M17N#test_{read_with_binmode_and_get[cs]}): only for Windows.
+Fri Jun 19 07:58:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Dec 14 19:57:23 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* ext/extmk.rb: if no with-ext option is given, default to
+	  enable everything.  [ruby-dev:49108] [Bug #11280]
 
-	* common.mk,Makefile.in,win32/Makefile.sub (ECHO1): move platform
-	  specific hack from common.mk to Makefile.in (and win32/Makefile.sub).
-	  [Bug #5711]
+Fri Jun 19 06:30:07 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/mkmf.rb: we can generate Makefile as we like.
+	* bootstraptest/test_method.rb: remove a test because $SAFE=2 was
+	  obsolete.
 
-Wed Dec 14 19:22:33 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	  Please check btest, too.
 
-	* win32/win32.c, include/ruby/win32.h (rb_w32_fd_is_text): new function.
+Thu Jun 18 23:51:51 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-	* win32/win32.c (init_stdhandle): set default mode of stdin as binmode.
+	* bin/erb: $SAFE=3 is obsolete.
 
-	* io.c (set_binary_mode_with_seek_cur): new function to replace
-	  SET_BINARY_MODE_WITH_SEEK_CUR macro.  now returns previous mode of the
-	  fd and take care of LF in rbuf.
+Thu Jun 18 23:45:11 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-	* io.c (do_writeconv): set text mode when needed.
+	* safe.c: removed needless doc related $SAFE=2
 
-	* io.c (io_read): need to change the mode of the IO to binmode
-	  temporally when the length for IO#read, because IO#read with length
-	  must behave so.
+Thu Jun 18 23:38:07 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* test/ruby/test_io_m17n.rb (TestIO_M17N#test_{read_with_length,
-	  read_with_length_binmode,get[cs]_and_read_with_binmode,
-	  read_with_binmode_and_get[cs],read_write_with_binmode}): tests for
-	  above changes.
+	* thread.c (rb_thread_safe_level): fix document.  $SAFE=3 is obsolete.
+	  [ci skip]
 
-	all patches are written by Hiroshi Shirosaki. [ruby-core:41496]
-	[Feature #5714]
+Thu Jun 18 23:25:51 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Dec 14 15:28:31 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/extmk.rb: configure intersection of with-ext and not
+	  without-ext, as withouts is no longer true by default if
+	  with-ext option is given.  [ruby-dev:49108] [Bug #11280]
 
-	* transcode.c (str_encode): about the extension of :fallback
-	  option since 1.9.3.
+Thu Jun 18 23:20:46 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Wed Dec 14 12:19:59 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* include/ruby/ruby.h: $SAFE=2 is now obsolete.
 
-	* load.c (load_unlock): release loading barrier and then remove it
-	  from loading_table if it is not in-use.  [Bug #5754]
+	* dir.c, ext/fiddle/handle.c, ext/socket/basicsocket.c, file.c
+	  gc.c, io.c, process.c, safe.c, signal.c, win32/file.c:
+	  removed code for $SAFE=2
 
-	* thread.c (rb_barrier_release, rb_barrier_destroy): return
-	  whether any other threads are waiting on it.
+	* test/erb/test_erb.rb, test/fiddle/test_handle.rb
+	  test/ruby/test_env.rb: removed tests for $SAFE=2.
 
-Wed Dec 14 11:23:45 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Jun 18 22:50:07 2015  Yusuke Endoh  <mame@ruby-lang.org>
 
-	* thread_pthread.c (ubf_select): call rb_thread_wakeup_timer_thread()
-	  only when it is not timer_thread. [Bug #5757] [ruby-dev:44985]
-	  patched by Tomoyuki Chikanaga.
+	* enc/make_encmake.rb: added --transes and --no-transes options.
 
-Wed Dec 14 10:20:08 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Jun 18 18:24:12 2015  Eric Wong  <e@80x24.org>
 
-	* load.c (load_lock): delete the loading barrier if it has been
-	  destroyed.
+	* test/socket/test_unix.rb: replace sleep with select
 
-	* thread.c (rb_barrier_wait): return nil for recursive lock
-	  instead of false, to distinguish it from destroyed barrier.
+Thu Jun 18 17:59:06 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Dec 14 01:24:55 2011  okkez  <okkez000@gmail.com>
+	* vm.c (rb_vm_control_frame_id_and_class): remove useless codes.
+	  `me' knows ID and owner class.
 
-	* thread_pthread.c (rb_thread_create_timer_thread): fix memory
-	  leak. [ruby-dev:44904] [Bug #5688]
+Thu Jun 18 16:58:35 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Dec 14 00:01:15 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* method.h: constify rb_method_alias_struct::original_me and
+	  rb_method_refined_struct::orig_me.
 
-	* parse.y (primary): point method name line.  [ruby-core:40936]
-	  [Bug #5614]
+	* class.c (move_refined_method): use RB_OBJ_WRITE() for
+	  me->def->body.refined.orig_me.
 
-Tue Dec 13 23:43:48 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+Thu Jun 18 14:35:28 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* error.c (name_err_mesg_to_str): clear rb_thread_t::errinfo when
-	  ignore exception under rb_protect(). [ruby-core:41612] [Bug #5755]
+	* ext/objspace/objspace.c (count_imemo_objects): support imemo_ment.
 
-	* test/ruby/test_exception.rb (test_exception_in_name_error_to_str):
-	  add a corresponding test.
+Thu Jun 18 13:32:46 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Dec 13 16:13:29 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* error.c (name_err_receiver): add NameError#receiver method.
+	  [Feature #10881]
 
-	* load.c (load_unlock): all threads requiring one file should
-	  share same loading barrier, so it must be kept alive while those
-	  are waiting on it.  [ruby-core:41618] [Bug #5754]
+Thu Jun 18 10:00:06 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Dec 13 07:30:14 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+	* safe.c: removed needless doc related $SAFE=3
 
-	* lib/webrick/httpresponse.rb (setup_header): 1xx responses
-	  are allowed to have Keep-Alive connections.
+Thu Jun 18 09:59:23 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* test/webrick/test_httpresponse.rb: corresponding test.
+	* safe.c: rename old method name for $SAFE=3
 
-Tue Dec 13 07:13:28 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+Thu Jun 18 06:02:42 2015  Eric Wong  <e@80x24.org>
 
-	* lib/webrick/httpresponse.rb (setup_header): 204 and 304 responses
-	  are allowed to have a Keep-Alive connection. [ruby-core:41581]
+	* compile.c (get_exception_sym2type, iseq_build_from_ary_body):
+	  rely on %+PRIsVALUE instead of calling rb_inspect directly
 
-	* test/webrick/test_httpresponse.rb: corresponding test.
+Wed Jun 17 20:59:25 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Dec 13 06:29:39 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* common.mk (ENC_MK): needs fake.rb if cross compilation.
+	  [ruby-dev:49098] [Bug #11272]
 
-	* parse.y (parser_magic_comment): should pass the proper value.
-	  [ruby-dev:44984][Bug #5753]
+Wed Jun 17 20:23:29 2015  Tanaka Akira  <akr@fsij.org>
 
-Tue Dec 13 05:50:07 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/rbconfig/sizeof/extconf.rb: Check __float80.
 
-	* vm_insnhelper.c (vm_yield_setup_block_args): splat single
-	  argument if optional arguments are defined not only mandatory or
-	  post arguments.  [ruby-core:41557] [Bug #5730]
+Wed Jun 17 15:15:53 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Mon Dec 12 22:35:39 2011  Shugo Maeda  <shugo@ruby-lang.org>
+	* safe.c (safe_setter): of course, don't have to warn the limitation of
+	  $SAFE=3 after it's removed.
 
-	* parse.y (stmt_or_begin): changed the error message for BEGIN not
-	  at toplevel.  [ruby-dev:44963] [Bug #5738]
+Wed Jun 17 14:29:43 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Mon Dec 12 17:29:01 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* include/ruby/ruby.h: $SAFE=3 is now obsolete.
 
-	* README: Fixed SupportedPlatforms URL in the README.
-	  patched by eMxyzptlk. https://github.com/ruby/ruby/pull/62
+	* ext/socket/init.c, ext/socket/socket.c, ext/socket/tcpsocket.c
+	  ext/socket/udpsocket.c, gc.c, object.c, re.c, safe.c: removed code
+	  for $SAFE=3
 
-Mon Dec 12 17:26:51 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* bootstraptest/test_method.rb, test/erb/test_erb.rb, test/ruby/test_dir.rb
+	  test/ruby/test_file.rb, test/ruby/test_method.rb, test/ruby/test_regexp.rb
+	  test/ruby/test_thread.rb: remove tests for $SAFE=3
 
-	* load.c (rb_feature_p): lazy assigned load_path searched in
-	  loading_table were not expanded, but all features, pushed to
-	  loading table, are expanded.  a patch by Yura Sokolov
-	  <funny.falcon AT gmail.com> in [ruby-core:41545]. [Bug #5727]
+Wed Jun 17 12:13:33 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Mon Dec 12 15:41:03 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ChangeLog: added contributor name.
 
-	* ext/stringio/stringio.c (strio_truncate): fix typo.  patched by
-	  Nick Howard <ndh AT baroquebobcat.com>.
-	  https://github.com/ruby/ruby/pull/65
+Wed Jun 17 10:57:28 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sun Dec 11 12:19:17 2011  Shugo Maeda  <shugo@ruby-lang.org>
+	* lib/csv.rb: accept to use Range object for row selection.
+	  contributed by Mitsutaka Mimura.
+	  [Feature #11267][ruby-dev:49091]
 
-	* lib/net/imap.rb: includes the sequence number of UID in a error
-	  message.  suggested by art lussos.
-	  [ruby-core:41413] [Feature #5692]
+Wed Jun 17 09:50:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Dec 11 11:42:10 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* lib/rdoc/servlet.rb (documentation_search, root_search):
+	  requires json for JSON.dump and fix sporadic failures due to
+	  the loading order.
 
-	* ext/syslog/syslog.c: fix a typo. [ruby-core:41585] [Bug #5740]
+Tue Jun 16 19:19:53 2015  Tanaka Akira  <akr@fsij.org>
 
-Sun Dec 11 10:48:16 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/rbconfig/sizeof/extconf.rb: Check several types defined in C99
+	  and x86_64 ABI.
 
-	* error.c (exit_initialize): deal with true and false as well as
-	  Kernel#exit.  [ruby-dev:44951] [Bug #5728]
+	* template/sizes.c.tmpl: Relax a pattern for types.
 
-Sun Dec 11 10:37:47 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jun 16 17:37:01 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* object.c (rb_check_to_int): new function to convert a VALUE to
-	  an Integer if possible, but returns nil instead of raising an
-	  exception otherwise.
+	* test/objspace/test_objspace.rb: relax pattern because uncollectible
+	  flag and marked flag can be false at major GC.
+	  [Bug #10852]
 
-Sun Dec 11 10:34:39 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jun 16 04:50:44 2015  Eric Wong  <e@80x24.org>
 
-	* process.c (rb_exit_status_code): extract from rb_f_exit_bang and
-	  rb_f_exit.  assume 0 to be success in Kernel#exit! too.
+	* ext/socket/basicsocket.c (bsock_recv): document outbuf
+	* ext/socket/unixsocket.c (unix_recvfrom): ditto
+	* ext/socket/init.c (rsock_strbuf, recvfrom_locktmp): new functions
+	  (rsock_s_recvfrom): support destination buffer as 3rd arg
+	  (rsock_s_recvfrom_nonblock): ditto
+	* string.c (rb_str_locktmp_ensure): export for internal ext
+	* test/socket/test_nonblock.rb: test recv_nonblock
+	* test/socket/test_unix.rb: test recv
+	  [ruby-core:69543] [Feature #11242]
 
-Fri Dec  9 19:24:31 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Tue Jun 16 04:38:02 2015  Eric Wong  <e@80x24.org>
 
-	* enc/trans/iso-8859-16-tbl.rb: add ISO-8859-16 converter.
+	* ext/socket/ancdata.c (bsock_sendmsg_internal,
+	  bsock_recvmsg_internal):
+	  support "exception: false" kwarg
+	* ext/socket/init.c (rsock_s_recvfrom_nonblock):
+	  ditto
+	* ext/socket/init.c (rsock_s_recvfrom_nonblock): use rsock_opt_false_p
+	* ext/socket/socket.c (sock_connect_nonblock): ditto
+	* ext/socket/rubysocket.h (rsock_opt_false_p): new function
+	* ext/socket/basicsocket.c (bsock_recv_nonblock): update rdoc
+	* ext/socket/udpsocket.c (udp_recvfrom_nonblock): ditto
+	* test/socket/test_nonblock.rb: new tests
+	  [ruby-core:69542] [Feature #11229]
 
-	* enc/trans/single_byte.trans: ditto.
+Mon Jun 15 14:33:02 2015  Akinori MUSHA  <knu@iDaemons.org>
 
-Fri Dec  9 14:28:40 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* lib/set.rb: Make Set#each and SortedSet#each generate a sized
+	  enumerator. [GH-931] by kachick (Kenichi Kamiya)
 
-	* file.c (file_path_convert): don't convert it when the path string is
-	  ascii only. [ruby-core:41556] [Bug #5733]
-	  tests are contributed by nobu.
+	* test/test_set.rb: Import tests from Set into SortedSet. [GH-931]
+	  by kachick (Kenichi Kamiya)
 
-Fri Dec  9 08:00:15 2011  Luis Lavena  <luislavena@gmail.com>
+Mon Jun 15 02:26:34 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* include/ruby/win32.h: undef stat to silence mingw-w64 stat
-	  redefinition warnings (GCC 4.6.3).
+	* lib/net/http.rb (Net::HTTP#connect): use connect_nonblock and
+	  io/wait to eliminate timeout use. fix GH-899
 
-Thu Dec  8 23:38:24 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+Sat Jun 13 07:21:18 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* variable.c (set_const_visibility): clear inline-cache when constant's
-	  visibility is modified. [ruby-dev:44929]
+	* thread.c (thread_start_func_2): don't interrupt when last thread
+	  exit unless main thread is already exited. Otherwise main thread
+	  could be wrongly interrupted when it uses rb_thread_call_without_gvl().
+	  Patch by Takehiro Kubo. [Bug #11237][ruby-dev:49044][GH-898]
 
-	* test/ruby/test_module.rb (test_private_constants_clear_inlinecache):
-	  add test for it.
+	* test/-ext-/gvl/test_last_thread.rb: new test for the above fix.
 
-Thu Dec  8 23:26:11 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* ext/-test-/gvl/call_without_gvl/call_without_gvl.c: new ext for
+	  the above test.
+	* ext/-test-/gvl/call_without_gvl/extconf.rb: ditto.
 
-	* ext/extmk.rb (extract_makefile): should sort after map, not before
-	  it.  in this case there is no difference, but we should write better
-	  code.  this bad smell was caught by nagachika.
+Mon Jun 15 00:14:33 2015  Tanaka Akira  <akr@fsij.org>
 
-Thu Dec  8 22:31:13 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* ext/pathname/lib/pathname.rb (descend): Blockless form supported.
+	  (ascend): Ditto.
+	  [ruby-core:68820] [Feature #11052] Patch by Piotr Szotkowski.
 
-	* ext/extmk.rb (extract_makefile): need to sort the array of current
-	  srcs before comparing to the sorted old srcs.
-	  fixed the problem that the configuring stage of exts were always
-	  run, introduced at r33801.
+Sun Jun 14 20:09:25 2015  Tanaka Akira  <akr@fsij.org>
 
-Thu Dec  8 13:26:24 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* time.c (time_getlocaltime): [DOC] Add examples of valid utc_offset
+	  formats.
+	  [ruby-core:68306] [Misc #10905] Patch by Charles Korn.
 
-	* test/rexml/test_order.rb (OrderTester#test_more_ordering): use
-	  Zlib::GzipReader.open instead of Zlib::GzipReader.new with File.new.
-	  fixed a test error on Windows introduced at r33946.
+Sun Jun 14 18:49:56 2015  Tanaka Akira  <akr@fsij.org>
 
-Thu Dec  8 13:11:26 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* ext/socket/raddrinfo.c (parse_numeric_port): Detect
+	  port overflow.
+	  (numeric_getaddrinfo): Use parse_numeric_port.
+	  numeric_getaddrinfo fails if port is too big now.
+	  This makes rb_getaddrinfo invokes the real getaddrinfo()
+	  on such condition.
+	  This change is related to [ruby-core:69355] [Bug #11179].
 
-	* test/ruby/test_process.rb (TestProcess#test_sete[gu]id): silently
-	  skip if not implemented such functions (such as, on Windows).
-	  fixed test errors on Windows introduced at r33953.
+Sun Jun 14 17:26:03 2015  Tanaka Akira  <akr@fsij.org>
 
-Thu Dec  8 12:57:50 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* enum.c (enum_chunk_while): New method Enumerable#chunk_while.
+	  [ruby-core:67738] [Feature #10769] proposed by Tsuyoshi Sawada.
 
-	* ext/socket/extconf.rb: forgotten to define HAVE_SOCKETPAIR for
-	  windows.
-	  fixed test errors on Windows introduced at r33947.
+Sun Jun 14 17:20:40 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Dec  8 12:11:06 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* file.c (rb_file_load_ok): try opening file without gvl not to
+	  lock entire process.  [Bug #11060]
 
-	* configure.in (RUBY_WERROR_FLAG): append all warning flags which
-	  are enabled to compile, so that printf format modifiers properly
-	  fail.  [ruby-core:41351] [Bug #5679]
+Sun Jun 14 10:43:50 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Thu Dec  8 07:20:15 2011  Eric Hodel  <drbrain@segment7.net>
+	* tool/runruby.rb: just remove the lines of RUBY_VERSION check and raise
+	  instead of replacing the check to `true`, for getting rid of a
+	  warning `possibly useless use of true in void context`.
 
-	* doc/re.rdoc:  Document difference between match and =~, options with
-	  Regexp.new and global variables.  Patch by Sylvain Daubert.
-	  [Ruby 1.9 - Bug #5709]
+Sun Jun 14 10:13:55 2015  Kouhei Sutou  <kou@cozmixng.org>
 
-Thu Dec  8 06:53:10 2011  Eric Hodel  <drbrain@segment7.net>
+	* lib/rexml/source.rb (REXML::IOSource#scan): Fix a typo in
+	  document. [fix GH-934]
+	  Patch by Anton Davydov. Thanks!!!
 
-	* doc/re.rdoc:  Fix example code to match documentation.  Patch by
-	  Jarno Lamberg.  [Ruby 1.9 - Bug #5624]
+Sun Jun 14 10:09:48 2015  Kouhei Sutou  <kou@cozmixng.org>
 
-Wed Dec  7 19:04:22 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/rexml/attlistdecl.rb (REXML::AttlistDecl): Fix a typo in
+	  document. [fix GH-934]
+	  Patch by Anton Davydov. Thanks!!!
 
-	* configure.in (rpath): fix typo in the help string.  a patch from
-	  Yuji Yamano <yyamano AT kt.rim.or.jp> in [ruby-list:48568].
+Sun Jun 14 06:24:57 2015  Benoit Daloze  <eregontp@gmail.com>
 
-Wed Dec  7 18:55:56 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/test_io.rb: add test for IO.binread fd leak.
+	  See r50881.
 
-	* vm.c (vm_set_top_stack, vm_set_eval_stack): check for stack
-	  overflow with stack_max before push new frame. [ruby-core:41520]
-	  [Bug #5720]
+Sun Jun 14 05:23:51 2015  Benoit Daloze  <eregontp@gmail.com>
 
-	* vm.c (vm_set_main_stack): no stack overflow chances after
-	  vm_set_eval_stack().
+	* io.c (rb_io_s_binread): close fd if seek offset is invalid.
 
-Wed Dec  7 09:58:15 2011  Eric Hodel  <drbrain@segment7.net>
+Sun Jun 14 04:40:32 2015  Benoit Daloze  <eregontp@gmail.com>
 
-	* ext/bigdecimal/bigdecimal.c:  Document +@, -@, hash, INFINITY, Nan.
-	  Patch by Sylvain Daubert.  [Ruby 1.9 - Feature #5622]
+	* test/lib/leakchecker.rb (check): refactor.
 
-Wed Dec  7 09:48:00 2011  Eric Hodel  <drbrain@segment7.net>
+Sun Jun 14 04:34:14 2015  Benoit Daloze  <eregontp@gmail.com>
 
-	* io.c (Init_IO):  Mention io/console methods.  [Ruby 1.9 - Bug #5602]
-	* ext/io/console/console.c:  Mention that io/console must be required
-	  similar to lib/time.rb
+	* test/lib/leakchecker.rb: Return false for no leaks.
+	  Otherwise the GC could run for nothing.
 
-Wed Dec  7 08:04:31 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+Sun Jun 14 04:15:40 2015  Benoit Daloze  <eregontp@gmail.com>
 
-	* ext/psych/lib/psych.rb (module Psych): parse and load methods take
-	  an optional file name that is used when raising Psych::SyntaxError
-	  exceptions
-	* ext/psych/lib/psych/syntax_error.rb (module Psych): allow nil file
-	  names and handle nil file names in the exception message
-	* test/psych/test_exception.rb (module Psych): Tests for changes.
+	* lib/delegate.rb: [DOC] Update SimpleDelegator example. [ci skip]
 
-Tue Dec  6 18:26:33 2011  Tanaka Akira  <akr@fsij.org>
+Sat Jun 13 20:28:14 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* ext/dbm/dbm.c: use db_version() instead of DB_VERSION_STRING to
-	  detect runtime Berkeley DB version.
-	  use dpversion instead of _QDBM_VERSION to detect runtime QDBM
-	  version.
-	  [ruby-dev:44948]
+	* file.c (rb_stat_ino): get inode from the interval of struct st.
 
-Tue Dec  6 12:30:41 2011  Tanaka Akira  <akr@fsij.org>
+	* win32/win32.c (stati64_set_inode): get nFileIndexHigh/Low, and set it
+	  to the interval of struct st as inode.
+	  [Feature #11216]
 
-	* ext/dbm/extconf.rb: detect gdbm_version in libgdbm.
+	* win32/win32.c (stati64_set_inode_handle): call stati64_set_inode.
 
-	* ext/dbm/dbm.c: make DBM::VERSION more informative for gdbm, qdbm and
-	  Berkeley DB 1.x.  [ruby-dev:44944]
+	* win32/win32.c (rb_w32_fstati64): call stati64_set_inode_handle.
 
-Tue Dec  6 07:26:37 2011  Eric Hodel  <drbrain@segment7.net>
+	* win32/win32.c (stati64_handle): call stati64_set_inode.
 
-	* range.c:  Improve documentation for Range.  Patch by Chris Zetter.
-	  [Ruby 1.9 - Bug #5656]
+Sat Jun 13 19:44:53 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Mon Dec  5 19:08:04 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/io/console/depend (.list.chksum): revert a part of r50859, because
+	  it was not mentioned at its commit log and it caused a build error on
+	  Windows ($(MAKE) is already quoted).
 
-	* regparse.c (PFETCH_READY): separate gcc specific trick.
+Sat Jun 13 17:35:11 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Mon Dec  5 19:01:59 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_core.h (rb_thread_t): add th->name.
 
-	* process.c (proc_seteuid_m): fix argument.
+	* vm.c (th_init): initialize th->name.
 
-	* test/ruby/test_process.rb (test_geteuid): fix typo.
+	* thread.c (Init_Thread): add Thread.name and name=. [Feature #11251]
 
-	* test/ruby/test_process.rb (test_getegid, test_set[eg]uid): add.
+	* thread.c (rb_thread_inspect): show thread's name if set.
 
-Mon Dec  5 18:56:55 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* thread.c (rb_thread_getname): defined.
 
-	* bignum.c (big_rshift), compile.c (validate_label,
-	  iseq_build_from_ary_exception), cont.c (cont_capture), dir.c
-	  (dir_open_dir), gc.c (objspace_each_objects), io.c (pipe_open)
-	  (rb_io_advise), parse.y (parser_compile_string)
-	  (rb_parser_compile_file), proc.c (binding_free), process.c
-	  (rb_proc_exec_n, rb_seteuid_core, proc_setegid, rb_setegid_core)
-	  (p_uid_exchange, p_gid_exchange), regparse.c (strdup_with_null),
-	  signal.c (sig_dfl), vm.c (rb_iseq_eval, rb_iseq_eval_main),
-	  vm_insnhelper.c (vm_expandarray): suppress
-	  unused-but-set-variable warnings.
+	* thread.c (rb_thread_setname): ditto.
 
-	* class.c (rb_obj_methods), compile.c (iseq_compile_each),
-	  iseq.c(iseq_load, rb_iseq_parameters), pack.c (pack_pack),
-	  regcomp.c (is_not_included, update_string_node_case_fold),
-	  transcode.c (rb_econv_open0, make_replacement),
-	  vm_eval.c (raise_method_missing): remove unused variable.
+Sat Jun 13 11:39:43 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* signal.c (reserved_signal_p): static.
+	* lib/tempfile.rb: Fix typo. [fix GH-933] Patch by @Zorbash
 
-Mon Dec  5 14:27:23 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+Sat Jun 13 11:38:00 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* include/ruby/{subst.h,win32.h}, ext/socket/rubysocket.h: revert
-	  r33876.  [ruby-core:41475] [Bug #5706]
+	* ext/openssl/ossl_ocsp.c: fix documentation on ocsp response cert status.
+	  [fix GH-932] Patch by @chrisholmes
 
-	* ext/socket/extconf.rb: the alternative hack for [Bug #5675].
+Sat Jun 13 11:35:19 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Mon Dec  5 10:18:45 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* ext/bigdecimal/bigdecimal.gemspec: Fix require paths for released gem.
+	  [fix GH-929] Patch by @voxik
+	* ext/io/console/io-console.gemspec: ditto.
 
-	* ext/zlib/zlib.c (rb_gzreader_initialize): revert a part of r33937.
-	  1st, to change the mode of an IO is very sensitive problem, so
-	  the maintainer of this library should judge it.
-	  2nd, usually Zlib::GzipReader.new is not called directly.  #initialize
-	  is called via .open, and in the method the I/O is opened in binary
-	  mode, so there is no problem without changing the mode in #initialize.
+Sat Jun 13 00:45:08 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
-Sun Dec  4 22:53:12 2011  Tanaka Akira  <akr@fsij.org>
+	* lib/prime.rb: Return sized enumerators.
+	  Patch by Kenichi Kamiya [GH-931]
 
-	* lib/tempfile.rb: don't use lock directory.  [ruby-dev:39197]
+Sat Jun 13 00:45:06 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
-Sun Dec  4 22:34:43 2011  Tanaka Akira  <akr@fsij.org>
+	* lib/prime.rb: Fix with_object with no block given
 
-	* lib/tempfile.rb (Tempfile::MAX_TRY): remove unused constant.
+Sat Jun 13 00:44:59 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
-Sun Dec  4 12:11:28 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* lib/prime.rb: Have with_index accept an offset parameter.
+	  Based on patch by T Yamada. [#11007]
 
-	* lib/pp.rb: fix rdoc.
+Fri Jun 12 22:21:12 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-Sun Dec  4 12:03:16 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* test/ruby/test_extlibs.rb (TestExtLibs::check_existence): fix
+	  error. [Bug #11255] [ruby-dev:49079]
 
-	* lib/delegate.rb (Delegator#methods): Kernel#methods receives
-	  zero or one argument. [ruby-core:37118] [Bug #4882]
+Fri Jun 12 21:17:46 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Sun Dec  4 10:15:00 2011  Luis Lavena  <luislavena@gmail.com>
+	* pack.c (pack_{un,}pack): new template character `j` and `J`, pointer
+	  with signed and unsigned integers.
 
-	* ext/zlib/zlib.c (rb_gzreader_initialize): use binary mode by default
-	  under Windows. Patch by Hiroshi Shirosaki. [ruby-core:40706]
-	  [Feature #5562]
+	* NEWS: mention about this feature.
+	  [Feature #11215] [ruby-dev:49015]
 
-	* include/ruby/encoding.h (void rb_econv_binmode): define NEWLINE
-	  decorator.
+Fri Jun 12 21:01:44 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* io.c (rb_cloexec_fcntl_dupfd): Introduce NEED_READCONV and
-	  NEED_WRITECONV to replace universal newline decorator by CRLF only
-	  when required to improve file reading and writing under Windows.
-	  Patch by Hiroshi Shirosaki. [ruby-core:40706] [Feature #5562]
-	* io.c (do_writeconv): adjust binary mode if required.
-	* io.c (read_all, appendline, swallow, rb_io_getline_1): ditto.
-	* io.c (io_getc, rb_io_each_codepoint, rb_io_ungetc): ditto.
-	* io.c (rb_io_binmode, rb_io_ascii8bit_binmode): ditto.
-	* io.c (rb_io_extract_modeenc, rb_sysopen): ditto.
-	* io.c (pipe_open, prep_stdio, io_encoding_set): ditto.
-	* io.c (rb_io_s_pipe, copy_stream_body): ditto.
+	* file.c (File::SHARE_DELETE): new flag to be able to delete opened file
+	  on Windows.
 
-	* test/ruby/test_io_m17n.rb (EOT): add test for pipe and stdin in
-	  binary mode.
+	* include/win32/win32.c (O_SHARE_DELETE): new pseudo file mode flag.
 
-	* win32/win32.c (init_stdhandle): remove O_BINARY from stdhandle
-	  initialization.
-	* win32/win32.c (rb_w32_write): use FTEXT mode accordingly.
+	* win32/win32.c (rb_w32_{w,}open): support above flag.  [EXPERIMENTAL]
 
-Sat Dec  3 20:49:16 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+	* NEWS: mention about this feature.
+	  [Feature #11218] [ruby-dev:49022]
 
-	* variable.c (set_const_visibility): print a warning when no argument
-	  is passwd to Module#private_constant.  [ruby-list:48558]
+Fri Jun 12 18:21:45 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* vm_method.c (set_method_visibility): ditto for
-	  Module#private_class_method.
+	* ChangeLog: added missing commit message.
 
-Sat Dec  3 20:43:14 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+Fri Jun 12 18:20:37 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* variable.c (set_const_visibility): Module#private_constant has
-	  changed the visibility of only the first argument.  Now it changes
-	  all of them.  [ruby-list:48558]
+	* sample/exyacc.rb: Fix some typos. [fix GH-927] Patch by @davydovanton
+	* sample/list.rb: ditto.
+	* sample/trick2013/kinaba/remarks.markdown: ditto.
 
-	* test/ruby/test_module.rb: add a test for above.
+Fri Jun 12 17:34:14 2015  Wojciech Mach  <wojtek@wojtekmach.pl>
 
-Sat Dec  3 07:17:29 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* hash.c (rb_hash_fetch_values): add `Hash#fetch_values`.
+	  [Feature #10017] [Fix GH-776]
 
-	* Makefile.in (CFLAGS): append ARCH_FLAG.
+Fri Jun 12 16:28:17 2015  Radan Skoric  <radan.skoric@gmail.com>
 
-	* configure.in (ARCH_FLAG): exclude from CFLAGS.
+	* array.c (rb_ary_bsearch_index): Implement Array#bsearch_index
+	  method, which is similar to bsearch and returns the index or
+	  nil.  [Feature #10730]
 
-	* configure.in (UNIVERSAL_INTS): include short int.  fix for
-	  test/mkmf.
+Thu Jun 11 19:11:22 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Fri Dec  2 15:48:08 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/zlib/zlib.c: Fix indentation for rdoc.
+	  [Bug #11221][ruby-core:69465]
 
-	* ext/bigdecimal/bigdecimal.c (VpAllocReal): reduce extra frac.
+Thu Jun 11 16:23:37 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Dec  2 15:41:24 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* method.h (METHOD_ENTRY_BASIC_SET): fix last commit (unbalanced parens).
 
-	* configure.in: check whether -pie or -Wl,-pie is valid as
-	  LDFLAGS.  [ruby-core:41438] [Bug#5697]
+Thu Jun 11 15:14:16 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* configure.in: use $linker_flag for LDFLAGS option which is not
-	  limited to particular platforms.
+	* configure.in: define SET_THREAD_NAME if it has pthread_set_name_np
+	  for FreeBSD, and don't define it if both pthread_setname_np
+	  and pthread_set_name_np don't exist.
 
-Thu Dec  1 23:21:58 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* thread_pthread.c (SET_THREAD_NAME): don't define if they don't exist.
 
-	* thread_pthread.c (thread_timer): call prctl(PR_SET_NAME) only if
-	  PR_SET_NAME is available.
+	* thread_pthread.c (native_set_thread_name): run if SET_THREAD_NAME
+	  is defined.
 
-Thu Dec  1 22:31:16 2011  Tanaka Akira  <akr@fsij.org>
+Thu Jun 11 15:53:31 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* io.c (linux_get_maxfd): change local variable name.
+	* method.h (METHOD_ENTRY_BASIC_SET): should clear last bit.
 
-Thu Dec  1 16:59:24 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Jun 11 14:34:45 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/socket/extconf.rb: add arguments for macro calls.
-	  [ruby-core:41370] [Bug#5681]
+	* lib/rubygems.rb: bump version to 2.4.7 and 2.4.8. these versions fixed
+	  CVE-2015-3900.
+	* lib/rubygems/remote_fetcher.rb: ditto.
+	* test/rubygems/test_gem_remote_fetcher.rb: added testcase for CVE-2015-3900
 
-Thu Dec  1 16:20:16 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Jun 11 14:18:51 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* lib/mkmf.rb (MakeMakefile#try_func): fix broken patch at r33834.
+	* lib/rubygems.rb: bump version to 2.4.6. It's missing change at r49774.
 
-Thu Dec  1 14:43:17 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Jun 11 13:50:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/bigdecimal/bigdecimal.h (Real): suppress false warning from
-	  clang.  [ruby-core:41418] [Bug#5693]
+	* array.c (ary_ensure_room_for_push): check if array size will
+	  exceed maximum size to get rid of buffer overflow.
+	  [ruby-dev:49043] [Bug #11235]
 
-Thu Dec  1 10:31:55 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* array.c (ary_ensure_room_for_unshift, rb_ary_splice): ditto.
 
-	* configure.in (LDFLAGS): -fstack-protector is always needed to
-	  link static library created with it.  [ruby-core:41387]
-	  [Bug#5686]
+Thu Jun 11 13:17:34 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Thu Dec  1 07:03:51 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* test/test_cmath.rb (TestCMath#test_trigonometric_functions): should
+	  not compare float values (in complex values) by `==`.
 
-	* configure.in: add sys/prctl.h test.
-	* thread_pthread.c (thread_timer): call prctl(PR_SET_NAME) to change
-	  thread name. It may help to debug.
+Thu Jun 11 08:52:01 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Nov 30 23:35:45 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* method.h: embed rb_method_entry_t::attr::flags (5 bits) into
+	  rb_method_entry_t::flags to make one word spare space.
 
-	* variable.c (rb_path2class): don't raise NameError when the middle
-	  constant of the path is not defined but defined on toplevel.
-	  [ruby-core:41410] [Bug #5691]
+	  Add some macros to access these flags.
 
-Wed Nov 30 20:02:02 2011  Martin Duerst  <duerst@it.aoyama.ac.jp>
+	* vm_method.c: use these macros.
 
-	* transcode.c: Simplified rb_econv_binmode, avoided a warning on cygwin.
+	* internal.h: define IMEMO_FL_USHIFT and IMEMO_FL_USER[0-4]
+	  for T_IMEMO local flags.
 
-Wed Nov 30 08:57:07 2011  Eric Hodel  <drbrain@segment7.net>
+Thu Jun 11 08:27:06 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/mkmf.rb:  Use MakeMakefile's rm_f to avoid conflict with Rake or
-	  FileUtils.
-	* test/ruby/test_module.rb:  Hide MakeMakefile's inclusion in Object
+	* vm.c: use VM_ASSERT instead of assert().
 
-Wed Nov 30 09:12:43 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* vm_args.c: ditto.
 
-	* lib/rdoc/encoding.rb (RDoc::Encoding.read_file): fixup newline chars
-	  on Windows.
-	  see https://github.com/rdoc/rdoc/issues/87
+	* vm_insnhelper.c: ditto.
 
-	* test/rdoc/test_rdoc_markup_pre_process.rb
-	  (TestRDocMarkupPreProcess#test_include_file,
-	  TestRDocMarkupPreProcess#test_include_file_encoding_incompatible):
-	  follow above change.
+	* vm_method.c: ditto.
 
-Wed Nov 30 09:09:37 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+Thu Jun 11 08:16:48 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/psych/parser.c (parse): parse method can take an option file
-	  name for use in exception messages.
-	* test/psych/test_parser.rb: corresponding tests.
+	* vm_core.h: define VM_ASSERT() for assertion
+	  enabled only when (VM_CHECK_MODE > 0).
 
-Tue Nov 29 09:07:59 2011  Eric Hodel  <drbrain@segment7.net>
+	* vm_insnhelper.c: move definition VM_CHECK_MODE
+	  from vm_insnhelper.c to vm_core.h.
 
-	* lib/mkmf.rb:  Fix indentations of constants at end of module.
-	  Document some constants.
+	* vm.c: remove <assert.h>
 
-Tue Nov 29 09:58:23 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Jun 11 06:46:07 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* io.c (rb_write_error2): suppress unused variable warning.
+	* vm_insnhelper.c (check_frame): check type of cref_or_me first.
 
-Tue Nov 29 07:45:26 2011  Eric Hodel  <drbrain@segment7.net>
+Thu Jun 11 04:34:39 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
 
-	* lib/mkmf.rb:  Wrap comments to 78 columns and clean up formatting.
+	* test/test_cmath.rb: Add some assertions.
 
-Tue Nov 29 05:54:18 2011  Eric Hodel  <drbrain@segment7.net>
+Thu Jun 11 00:34:39 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/mkmf.rb:  Wrap mkmf.rb in module MakeMakefile to clean up Object
-	  documentation.  [Ruby 1.9 - Feature #5658]
-	* ext/extmk.rb:  Use MakeMakefile::CONFIG instead of Object::CONFIG
-	* test/mkmf/base.rb:  ditto
+	* template/fake.rb.in: expanded macro result may have spaces
+	  between tokens.  [ruby-dev:49047] [Bug #11243]
 
-Tue Nov 29 00:08:57 2011  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+Wed Jun 10 22:27:32 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* common.mk (INSTRUBY_ARGS): added --mantype to apply mdoc2man.rb
-	  to man pages.  Fixes #5598.
-	  (do-install-nodoc, do-install-local, do-install-man,
-	  dont-install-nodoc, dont-install-local, dont-install-man):
-	  No longer needs --mantype.
+	* lib/mkmf.rb: revert r50804 because of build failure when specifying
+	  LDFLAGS during configure, observed on Solaris with GCC 4.6.
+	  [Bug #11245]
 
-	  Reported by Rainer Orth <ro AT cebitec.uni-bielefeld.de>,
-	  patch by George Koehler <xkernigh AT netscape.net>.
+Wed Jun 10 21:59:51 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-Mon Nov 28 22:26:31 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* README.ja.md: fix markup miss.
 
-	* test/rake/test_rake_directory_task.rb
-	  (TestRakeDirectoryTask#test_directory_win32): shouldn't create any
-	  file/directory on root directory.  create on @tempdir (= Dir.pwd).
-	  see https://github.com/jimweirich/rake/issues/91
+Wed Jun 10 11:06:25 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Nov 28 12:57:29 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* template/fake.rb.in: turn into erb template from autoconf
+	  template to fake more accurately.
 
-	* io.c (rb_write_error2): fwrite() returns ssize_t.
+	* common.mk (fake.rb): needs preprocessed file now.
 
-Mon Nov 28 12:47:19 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* version.c (Init_version): add dummy expression to
+	  RUBY_ENGINE_VERSION.
 
-	* parse.y (nodetype, nodeline): static.  these functions are for
-	  debugging, and not intend to be public.
+Tue Jun  9 12:31:25 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
-Mon Nov 28 12:37:54 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* lib/prime.rb: Simplify and optimize EratosthenesSieve
 
-	* gc.c (initial_params): static.  it seems to be forgotten at r33501.
+Tue Jun  9 11:45:00 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
-Mon Nov 28 12:32:24 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* lib/prime.rb: Simplify and optimize EratosthenesSieve
+	  based on patch by Ajay Kumar. [Fixes GH-921]
 
-	* include/ruby/win32.h, win32/win32.c (GetCurrentThreadHandle): remove
-	  unused old API.
+Mon Jun  8 05:09:58 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Nov 28 12:29:20 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* gc.c (obj_info): print method id for T_IMEMO/ment.
 
-	* win32/mkexports.rb (Exports#initialize): remove old symbol name.
+Sun Jun  7 07:05:43 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
 
-Mon Nov 28 12:15:28 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* Move test cases from test/ruby/test_complex.rb to test/test_cmath.rb
 
-	* win32/mkexports.rb (Exports#read_substitution): need to read
-	  from subst.h too.  [Bug #5675]
+Sat Jun  6 18:23:41 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Nov 28 11:46:35 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* method.h: back to share rb_method_definition_t by
+	  rb_method_entry_t.
 
-	* io.c (rb_io_flush): release GVL during fsync() on Windows.
+	  r50728 changed sharing `def's to isolating `def's
+	  on alias and so on. However, this change conflicts
+	  future improvement plan. So I change back to sharing approach.
 
-Mon Nov 28 11:00:25 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* method.h: move rb_method_definition_t::flags to
+	  rb_method_entry_t::attr::flags.
 
-	* include/ruby/subst.h: typo of r33876.
+	  rb_method_entry_t::attr is union with VALUE because this field
+	  should have same size of VALUE. rb_method_entry_t is T_IMEMO).
 
-Mon Nov 28 10:36:00 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  And also add the following access macros to it's fields.
 
-	* include/ruby/subst.h: moved Windows specific substitutions from
-	  win32.h.
+	  * METHOD_ENTRY_VISI(me)
+	  * METHOD_ENTRY_BASIC(me)
+	  * METHOD_ENTRY_SAFE(me)
 
-	* ext/socket/rubysocket.h: include ruby/subst.h.  [Bug #5675]
+	* vm_method.c (rb_method_definition_addref): added instead of
+	  rb_method_definition_clone().
 
-Mon Nov 28 10:20:58 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	  Do not create new definition, but increment alias_count.
 
-	* win32/{Makeilfe.sub,win32.c} (FILE_COUNT, FILE_READPTR): move the
-	  definitions from config.h to win32.c.  I dared to have left such
-	  macros, for other future compiler support.
-	  [ruby-core:41313] [Bug #5674]
+	* class.c (clone_method): catch up this fix.
 
-Mon Nov 28 09:28:30 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* class.c (method_entry_i): ditto.
 
-	* win32/win32.c (rb_w32_uchmod): typo.  [Bug#5671] [ruby-dev:44898]
+	* proc.c (mnew_internal): ditto.
 
-	* test/ruby/test_file.rb (TestFile#test_chmod_m17n): test of above bug.
+	* proc.c (mnew_missing): ditto.
 
-Sun Nov 27 21:25:33 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* vm_eval.c: ditto.
 
-	* configure.in: added -fno-strict-overflow. it suppress annoying
-	  -Wstrict-overflow warning.
+	* vm_insnhelper.c: ditto.
 
-Sun Nov 27 20:58:02 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* vm_method.c: ditto.
 
-	* io.c (rb_write_error2): get rid of warning on linux. fwrite
-	  of glibc is tagged __attribute__ ((__warn_unused_result__))
-	  if _FORTIFY_SOURCE != 0.
-	* vm_dump.c (rb_vm_bugreport): ditto.
+Sat Jun  6 15:59:38 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Nov 27 19:09:02 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* class.c: ins_methods_push() needs rb_method_visibility_t type on
+	  2nd arg.
 
-	* configure.in (stack_protector): disable on mingw.  [Bug#5676]
+Sat Jun  6 15:05:47 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* Makefile.in (DLDFLAGS): also needs -fstack-protector.
-	  [Bug#5676]
+	* class.c (ins_methods_push): Change type and name of parameters
+	  to make more clear.
 
-Sun Nov 27 14:13:33 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Sat Jun  6 08:52:13 2015  Eric Wong  <e@80x24.org>
 
-	* configure.in: add -fstack-protector into XLDFLAGS as well as
-	  XCFLAGS if stack-protector is used.
+	* test/socket/test_nonblock.rb: try to avoid EMSGSIZE
+	  [ruby-core:69466]
 
-Sun Nov 27 13:09:25 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Sat Jun  6 07:58:30 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* configure.in: workaround to avoid MacOS X build error.
-	  Maybe autoconf 2.61 is slightly buggy. [ruby-core:41316]
+	* gc.c: remove struct mark_tbl_arg and pass objspace directly
+	  to avoid indirect access overhead.
 
-Sun Nov 27 04:57:11 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Sat Jun  6 07:08:45 2015  Eric Wong  <e@80x24.org>
 
-	* configure.in (--no-undefined): r33840 breaks FreeBSD and DragonFly
-	  with gcc 4.4 or later. Their environ is in /usr/libexec/ld-elf.so.1,
-	  so it will be false negative.
+	* ext/socket/ancdata.c (bsock_sendmsg_internal): drop redundant assignment
 
-Sun Nov 27 04:55:45 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Sat Jun  6 01:00:06 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* lib/net/http.rb (Net::HTTP::SSL_IVNAMES): rerefix 33701.
-	  SSL_ATTRIBUTES stores names for set_params, they are symbol.
-	  SSL_IVNAMES stores instance variable names.
+	* ext/socket/ancdata.c (bsock_sendmsg_internal): all arguments are
+	  parsed even on systems without HAVE_STRUCT_MSGHDR_MSG_CONTROL
+	  to prevent SEGV caused by passing Qnil to RARRAY_LENINT and
+	  to preserve behavior before r50776.
+	  [Bug #11224] [ruby-core:69468] [Bug #11225] [ruby-core:69469]
 
-Sun Nov 27 00:16:07 2011  Tanaka Akira  <akr@fsij.org>
+Fri Jun  5 22:37:42 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* io.c (copy_stream_body): use 0666 for permission argument for open.
-	  [ruby-core:40865]
+	* class.c (ins_methods_push): change 3rd parameter's type
+	  from long to rb_method_visibility_t.
 
-Sat Nov 26 23:01:38 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* class.c (ins_methods_i): catch up this fix.
 
-	* test/openssl/test_engine.rb: remove side effect of generic engine
-	  load by explicitly loading software-based "openssl" engine for
-	  all tests.
+	* class.c (method_entry_i): cast to st_data_t instead of `long'.
 
-Sat Nov 26 20:41:48 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Fri Jun  5 20:37:10 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/net/http.rb (Net::HTTP.get_response): enable use_ssl
-	  if given URI object is https.
-	  patched by Mark Ferlatte [ruby-core:40665] [Bug #5545]
+	* internal.h: move definition of rb_cref_t to method.h.
 
-	* lib/net/http.rb (Net::HTTP.post_form): ditto.
+	* eval_intern.h: move definition of rb_scope_visibility_t
+	  to method.h.
 
-Sat Nov 26 20:01:18 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* method.h: change rb_cref_t::scope_visi from VALUE to
+	  rb_scope_visibility_t.
+	  [Bug #11219]
 
-	* lib/net/http.rb (Net::HTTP::SSL_ATTRIBUTES): refix 33701.
-	  store instance variable symbol names.
+	* vm.c (vm_cref_new): accept rb_method_visibility_t directly.
 
-Sat Nov 26 15:40:25 2011  URABE Shyouhei  <shyouhei@ruby-lang.org>
+	* vm_insnhelper.c (rb_vm_rewrite_cref): don't use 0,
+	  but METHOD_VISI_UNDEF.
 
-	* .travis.yml (script): should be ./configure
+	* vm_method.c (rb_scope_visibility_set): don't need to use cast.
 
-Sat Nov 26 15:39:18 2011  URABE Shyouhei  <shyouhei@ruby-lang.org>
+	* vm_method.c (rb_scope_module_func_set): ditto.
 
-	* .travis.yml (before_script): wrong name, sorry.
+Fri Jun  5 17:27:30 2015  Eric Wong  <e@80x24.org>
 
-Sat Nov 26 15:31:34 2011  URABE Shyouhei  <shyouhei@ruby-lang.org>
+	* ext/socket/ancdata.c (bsock_sendmsg_internal): avoid msg_control
+	  ptr if msg_controllen is zero to fix portability problems.
 
-	* .travis.yml (before-script): autoconf required.
+Fri Jun  5 09:17:45 2015  Eric Wong  <e@80x24.org>
 
-Sat Nov 26 15:24:05 2011  URABE Shyouhei  <shyouhei@ruby-lang.org>
+	* ext/socket/ancdata.c (bsock_sendmsg_internal): fix build error
+	  from r50776
 
-	* .travis.yml: Travis enable.
+Fri Jun  5 07:05:58 2015  Eric Wong  <e@80x24.org>
 
-Sat Nov 26 10:47:50 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* io.c (sym_wait_readable, sym_wait_writable): declare
+	  (io_getpartial): use sym_wait_readable
+	  (io_write_nonblock): use sym_wait_writable
+	  (Init_IO): initialize sym_wait_*able
 
-	* ext/openssl/extconf.rb: remove checks for available functions.
-	* ext/openssl/missing.h: ditto.
-	  Thanks, Tim Mooney for reporting this!
-	  [Bug #5432] [ruby-core:40088]
+Fri Jun  5 06:43:00 2015  Eric Wong  <e@80x24.org>
 
-Sat Nov 26 10:22:28 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* doc/extension.rdoc: note rb_get_kwargs changes keywords_hash
+	  [ruby-core:68507]
 
-	* ext/openssl/ossl_ssl.c: add comment on where to find implementation
-	  of OpenSSL::SSL::SSLSocket#session.
+Fri Jun  5 05:50:29 2015  Eric Wong  <e@80x24.org>
 
-Sat Nov 26 05:00:25 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/socket/ancdata.c (bsock_sendmsg_internal): use rb_scan_args
+	  [ruby-core:69439] [Feature #11207]
 
-	* configure.in (--no-undefined): RUBY_TRY_CFLAGS does nothing for
-	  linker flags.  use RUBY_TRY_LDFLAGS.
+Fri Jun  5 02:20:06 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Nov 25 11:37:07 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* test/lib/envutil.rb (assert_no_memory_leak): change default value
+	  of limit from 1.5 to 2.0. It is ad-hoc fix to solve test failure
+	  in travis-ci.
 
-	* io.c (ioctl_narg_len, linux_iocparm_len): reinstantiate linux
-	  specific narg length calculation.
-	* test/ruby/test_io.rb (test_ioctl_linux2): add new test for old and
-	  unstructured ioctl.
+Fri Jun  5 01:17:21 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Nov 25 10:39:14 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* vm_insnhelper.c (vm_defined): no need to use cast.
 
-	* Makefile.in (EXTLDFLAGS): export it.
-	* configure.in: add --no-undefined if --enable-shared is specified.
-	  Gentoo enabled this option long time. Also, export EXTLDFALGS.
+Fri Jun  5 01:14:02 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Nov 25 08:48:35 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* vm_insnhelper.c (vm_defined): show additional messages on rb_bug().
 
-	* configure.in: turn on PIE if --enable-shared is not specified.
+Fri Jun  5 01:06:02 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Nov 25 08:05:07 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* vm_method.c (rb_add_method_iseq): use intermediate struct to
+	  avoid initializing struct with variables.
+	  [Bug #11217]
 
-	* configure.in: add -fstack-protector. It help to protect us from
-	  stack smashing attack.
+	* method.h: add a comment about it.
 
-Fri Nov 25 08:03:28 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Fri Jun  5 00:55:21 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* configure.in: add -D_FORTIFY_SOURCE=2. It provide some compile
-	  time and runtime check for security.
+	* method.h: constify rb_method_refined_t::orig_me.
 
-Fri Nov 25 08:00:23 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	  Also constify the following functions.
 
-	* lib/mkmf.rb: get rid of warnings of mkmf.rb if -Wmissing-declarations
-	  and/or -Wold-style-definition warnings if specified.
-	  Patch by Nikolai Weibull. Thank you! [Bug #5459] [ruby-core:40200]
+	  * rb_resolve_refined_method()
+	  * rb_method_entry_with_refinements()
+	  * rb_method_entry_without_refinements()
+	  * rb_method_entry_copy()'s parameter.
 
-Fri Nov 25 07:46:09 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* class.c: catch up this fix.
 
-	* configure.in: add -Wall always.
+	* vm_insnhelper.c: ditto.
 
-Thu Nov 24 20:02:40 2011  Tanaka Akira  <akr@fsij.org>
+	* vm_method.c: ditto.
 
-	* test/openssl/test_engine.rb: use IO#reopen to restore stderr.
+Thu Jun  4 12:47:54 SGT 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Nov 24 19:59:56 2011  Tanaka Akira  <akr@fsij.org>
+	* array.c: Revert r50763. because "reentered" is not typo.
 
-	* io.c (rb_io_reopen): re-initialize buffering mode for stdout and
-	  stderr.
+Thu Jun  4 11:12:29 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Nov 24 11:12:48 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* ext/win32ole/win32ole.c: fix a typo. Patch by @davydovanton
+	  [fix GH-923]
+	* include/ruby/st.h: ditto.
+	* include/ruby/util.h: ditto.
 
-	* io.c (rb_io_fsync,rb_io_fdatasync): release GVL during fsync().
-	  fsync() and fdatasync() may take a long time on slow disks and/or
-	  if there is much dirty data.
-	  Patch by Eric Wong. [Feature #5665] [ruby-core:41247]
+Thu Jun  4 10:54:30 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Nov 24 10:05:02 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* array.c: fix a typo. Patch by @manish-shrivastava
+	  [fix GH-922]
 
-	* test/openssl/test_engine.rb: Suppress output from 'openssl'
-	  engine's RC4 cipher.
-	  [Bug #5633] [ruby-core:41026]
+Thu Jun  4 09:52:02 2015  Eric Wong  <e@80x24.org>
 
-Thu Nov 24 08:05:02 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* ext/openssl/lib/openssl/ssl.rb: use io/nonblock instead of fcntl
+	  [ruby-core:69382] [Feature #11190]
 
-	* ext/openssl/ossl_pkey_dsa.c: remove redundant colon from error
-	  message.
-	* ext/openssl/ossl_ssl.c: ditto.
-	* ext/openssl/ossl_pkey_rsa: ditto.
-	  patched by Eric Hodel [Bug #5604] [ruby-core:40896]
+Thu Jun  4 07:22:45 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Nov 23 20:03:43 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* method.h: introduce rb_method_refined_t for refined method entry.
 
-	* io.c (ioctl_narg_len): don't use _IOC_SIZE macro on Linux.
-	  On Linux some constants for ioctl(2) doesn't include the size of
-	  its return value and 16bit value; for example FIONREAD 0x541B.
-	  Moreover the manual, ioctl_list(2),  says "Note  that  the  size
-	  bits  are  very unreliable: in lots of cases they are wrong,
-	  either because of buggy macros using sizeof(sizeof(struct)),
-	  or because of legacy values."
-	  So we shouldn't use it.
+	* class.c (move_refined_method): catch up this fix.
 
-Tue Nov 22 18:07:32 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* gc.c (mark_method_entry): ditto.
 
-	* win32/win32.c (_pioinfo): need to declare _pioinfo() before using
-	  _osfhnd and other macros which uses _pioinfo() internally.
+	* vm_eval.c (vm_call0_body): ditto.
 
-Tue Nov 22 17:49:45 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_insnhelper.c (vm_call_method): ditto.
 
-	* win32/win32.c (_pioinfo): make an inline function.
+	* vm_method.c: ditto.
 
-Tue Nov 22 11:26:08 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Jun  4 07:12:20 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Nov 22 11:33:58 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* dir.c (dirent_match): match short names only when FNM_SHORTNAME
+	  flag is given, for the backward compatibility, and the new
+	  behavior is often dangerous.  [ruby-core:69435] [Bug #11206]
 
-	* win32/win32.c (dupfd): argument of _osfhnd and so on should not
-	  have side effect.
+Thu Jun  4 05:44:01 2015  Eric Wong  <e@80x24.org>
 
-Tue Nov 22 11:26:08 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* variable.c (special_generic_ivar): remove flag
+	  (givar_i, rb_mark_generic_ivar_tbl): remove functions
+	  (rb_free_generic_ivar, rb_ivar_lookup, rb_ivar_delete,
+	   generic_ivar_set, rb_ivar_set, rb_ivar_defined,
+	   rb_copy_generic_ivar, rb_ivar_foreach, rb_ivar_count,
+	   rb_obj_remove_instance_variable):
+	   adjust for lack of ivar support in special constants
+	* test/ruby/test_variable.rb: test ivars for special consts
+	* internal.h: remove rb_mark_generic_ivar_tbl decl
+	* gc.c (gc_mark_roots): remove rb_mark_generic_ivar_tbl call
+	  [ruby-core:69441] [Feature #11208]
 
-	* bignum.c (rb_big_divide): refix of r33536. Don't change behavior of Bignum#/.
-	  [ruby-core:40429] [Bug #5490]
+Thu Jun  4 05:13:34 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Nov 22 10:46:57 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* vm_insnhelper.c (def_iseq_ptr): `iseqval' is not available any more.
 
-	* numeric.c (ruby_float_step): improve floating point calculations.
-	  [ruby-core:35753] [Bug #4576]
+Thu Jun  4 04:50:12 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* numeric.c (ruby_float_step): correct the error of floating point
-	  numbers on the excluding case.
-	  patched by Masahiro Tanaka [ruby-core:39608]
+	* class.c (method_entry_i): mtbl should not have `me' as NULL.
 
-	* numeric.c (ruby_float_step): use the end value when the current
-	  value is greater than or equal to the end value.
-	  patched by Akira Tanaka [ruby-core:39612]
+Thu Jun  4 04:28:45 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Nov 22 06:59:21 2011  Tanaka Akira  <akr@fsij.org>
+	* class.c (clone_method): do not use me->klass, but use explicitly
+	  passed argument.
 
-	* test/ruby/test_io.rb (test_fcntl_dupfd): there is no known platform
-	  which don't have F_DUPFD.  [ruby-dev:44874]
+Thu Jun  4 04:10:43 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Nov 22 04:46:22 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+	* vm_core.h (rb_vm_rewrite_cref_stack): rename to rb_vm_rewrite_cref().
 
-	* ext/psych/lib/psych.rb: remove autoload from psych
-	* ext/psych/lib/psych/json.rb: ditto
+	* class.c (clone_method): use renamed name.
 
-Tue Nov 22 00:44:59 2011  Tanaka Akira  <akr@fsij.org>
+	* vm_insnhelper.c (rb_vm_rewrite_cref): do not use `node' in variable
+	  names.
 
-	* test/ruby/test_io.rb (test_fcntl_dupfd): the argument of F_DUPFD is
-	  minimum file descriptor.
+Wed Jun  3 23:03:50 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Nov 22 00:25:17 2011  Tanaka Akira  <akr@fsij.org>
+	* vm_method.c: rename `rb_frame_...' to `rb_scope_...'.
 
-	* io.c (linux_get_maxfd): get rid of a warning.
+	* eval_intern.h: move decl. of rb_scope_visibility_set() to method.h.
 
-Mon Nov 21 23:39:14 2011  Tanaka Akira  <akr@fsij.org>
+	* load.c: catch up this fix.
 
-	* io.c (linux_get_maxfd): new function to find maximum fd on Linux.
-	  (rb_close_before_exec): use linux_get_maxfd.
+Wed Jun  3 21:14:20 2015  Tanaka Akira  <akr@fsij.org>
 
-Mon Nov 21 06:16:24 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* ext/rbconfig/sizeof/extconf.rb: Check C99 standard integer types.
 
-	* cont.c (fiber_switch): ignore fiber context switch
-	  because destination fiber is same as current fiber.
-	  With out this, it may segv on FreeBSD 9.
-	  patched by Koichi Sasada.
+Wed Jun  3 21:00:47 2015  Tanaka Akira  <akr@fsij.org>
 
-Sun Nov 20 23:22:42 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* configure.in: Don't check __int128.
 
-	* ext/extmk.rb (extract_makefile, extmake): regenerate makefiles
-	  if globbed source file list is changed.
+	* ext/rbconfig/sizeof/extconf.rb: Check __int128.
 
-	* lib/mkmf.rb (create_makefile): store ORIG_SRCS.
+	* ext/rbconfig/sizeof/depend: sizes.c depends on
+	  ext/rbconfig/sizeof/extconf.rb.
 
-Sun Nov 20 22:43:03 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* template/sizes.c.tmpl: Detect check_sizeof.
 
-	* enc/unicode.c (PROPERTY_NAME_MAX_SIZE): +1.
-	  reported by Ken Takata. [ruby-dev:44894][Bug #5652]
+Wed Jun  3 20:07:07 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Nov 20 11:01:28 2011  Tanaka Akira  <akr@fsij.org>
+	* class.c (clone_method): remove redundant check for me->def != NULL.
+	  Now, all `me` have `me->def`.
 
-	* lib/set.rb (SortedSet.setup): remove old_init after initialize
-	  method is redefined.  The remove before redefinition makes the
-	  warning prevention fragile.  [ruby-dev:44892]
+	* proc.c (rb_method_entry_location): ditto.
 
-Sun Nov 20 04:01:45 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm.c (rb_vm_check_redefinition_opt_method): ditto.
 
-	* Makefile.in (enc/unicode/name2ctype.h): remove duplicated
-	  ifdefs.
+	* vm.c (add_opt_method): ditto.
 
-Sat Nov 19 19:31:47 2011  Tanaka Akira  <akr@fsij.org>
+	* vm_eval.c (vm_call0_body): ditto.
 
-	* time.c (TIME_COPY_GMT): copy vtm.utc_offset and vtm.zone too.
-	  patch by Tomoyuki Chikanaga.
-	  [ruby-dev:44827] [Bug #5586]
+Wed Jun  3 19:24:12 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Nov 19 16:36:57 2011  Tanaka Akira  <akr@fsij.org>
+	* vm_core.h: rename enum missing_reason to enum method_missing_reason.
 
-	* test/net/http/test_http.rb: remove temporally files in ensure clause.
+	* vm_core.h: use enum method_missing_reason for
+	  rb_thread_t::method_missing_reason.
 
-Sat Nov 19 08:18:41 2011  Tanaka Akira  <akr@fsij.org>
+	* vm_eval.c: catch up this fix.
 
-	* test/net/http/test_http.rb: remove temporally files.
+	* vm_insnhelper.c: ditto.
 
-Fri Nov 18 17:18:16 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jun  3 16:17:21 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-	* ext/io/console/console.c (console_raw, console_set_raw)
-	  (console_getch): optional parameters.  [EXPERIMENTAL]
+	* vm.c: eagerly allocate `loading_table`.  This eliminates the need to
+	  do NULL checks when looking up the `loading_table` hash.
+	  https://github.com/ruby/ruby/pull/918
 
-Fri Nov 18 16:12:11 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* load.c: remove various NULL checks
 
-	* ext/io/console/console.c (console_cooked, console_set_cooked):
-	  new methods to reset cooked mode.  [EXPERIMENTAL]
+Wed Jun  3 11:47:15 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Nov 18 13:20:26 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* method.h: change fields order to gather frequent access fields.
 
-	* test/unit/assertions.rb (MINI_DIR): quick dirty hack to get rid of
-	  warnings when using assert/assert_respond_to.
+	* vm_insnhelper.c (vm_call_method): add LIKELY().
 
-Fri Nov 18 13:03:38 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed Jun 03 10:35:45 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* io.c (rb_cloexec_open): set O_NOINHERIT instead of O_CLOEXEC if it is
-	  available (for Windows).
+	* method.h: split rb_method_definition_t::flag to several flags.
 
-	* win32/win32.c (fcntl): on F_DUPFD, determine the inheritance of the
-	  new handle by O_NOINHERIT flag of original fd.
+	  `flag' contains several categories of attributes and it makes us
+	  confusion (at least, I had confused).
 
-Fri Nov 18 08:00:41 2011  Ryan Davis  <ryand-ruby@zenspider.com>
+	  * rb_method_visibility_t (flags::visi)
+	    * NOEX_UNDEF     -> METHOD_VISI_UNDEF     = 0
+	    * NOEX_PUBLIC    -> METHOD_VISI_PUBLIC    = 1
+	    * NOEX_PRIVATE   -> METHOD_VISI_PRIVATE   = 2
+	    * NOEX_PROTECTED -> METHOD_VISI_PROTECTED = 3
+	  * NOEX_SAFE(flag)  -> safe (flags::safe, 3 bits)
+	  * NOEX_BASIC       -> basic (flags::basic, 1 bit)
+	  * NOEX_MODFUNC     -> rb_scope_visibility_t in CREF
+	  * NOEX_SUPER       -> MISSING_SUPER (enum missing_reason)
+	  * NOEX_VCALL       -> MISSING_VCALL (enum missing_reason)
+	  * NOEX_RESPONDS    -> BOUND_RESPONDS (macro)
 
-	* lib/minitest/*: Imported minitest 2.8.1 (r6750)
-	* test/minitest/*: ditto
-	* configure.in: Improved gcc-llvm error message to help people migrate.
+	  Now, NOEX_NOREDEF is not supported (I'm not sure it is needed).
 
-Thu Nov 17 20:43:34 2011  Tanaka Akira  <akr@fsij.org>
+	  Background:
+	    I did not know what "NOEX" stands for.
+	    I asked Matz (who made this name) and his answer was "Nothing".
+	    "At first, it meant NO EXport (private), but the original
+	    meaning was gone."
+	    This is why I remove the mysterious word "NOEX" from MRI.
 
-	* ext/dbm/extconf.rb: revert a part of the patch in [ruby-dev:41531].
-	  don't use db.h with other headers.  [ruby-dev:44884].
+	* vm_core.h: introduce `enum missing_reason' to represent
+	  method_missing (NoMethodError) reason.
 
-Thu Nov 17 20:23:03 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* eval_intern.h: introduce rb_scope_visibility_t to represent
+	  scope visibility.
+	  It has 3 method visibilities (public/private/protected)
+	  and `module_function`.
 
-	* benchmark/bm_io_select[23].rb: use Process::RLIMIT_NOFILE only when
-	  it is defined.  if it is not defined, assume 64 as the max of fds.
+Wed Jun  3 08:06:30 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Thu Nov 17 10:36:46 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+	* gem/bundled_gems: updated to test-unit 3.1.1 and minitest 5.7.0.
 
-	* ext/psych/lib/psych.rb (load_file): make sure opened yaml files are
-	  also closed. [ruby-core:41088]
+Wed Jun  3 04:48:05 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Nov 16 18:13:52 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_insnhelper.c (vm_defined): check respond_to_missing?
+	  at defined?(func()).
+	  [Bug #11212]
 
-	* Makefile.in (LIBRUBY_A): check if generated linked library is
-	  valid for extconf.
+	* test/ruby/test_defined.rb: add a test for this fix.
 
-Wed Nov 16 13:51:40 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed Jun  3 04:34:39 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* bignum.c (rb_big2ulong): need to calc in unsigned long, because
-	  the range of VALUE is larger than it on LLP64 platform, such as Win64.
-	  this change fixes the failures of test/-ext-/num2int.
+	* vm_insnhelper.c (vm_defined): skip respond_to_missing? when
+	  a method is available.
+	  [Bug #11211]
 
-Wed Nov 16 12:02:47 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* test/ruby/test_defined.rb: add a test for this fix.
 
-	* test/webrick/test_cgi.rb (TestWEBrickCGI#start_cgi_server): there are
-	  no guarantee of existence of RbConfig::CONFIG['LIBPATHENV'].
-	  it only exists in Unix-like environments.
+Wed Jun  3 04:14:13 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* test/webrick/test_filehandler.rb
-	  (WEBrick::TestFileHandler#test_script_disclosure): ditto.
+	* insns.def (defined), vm_insnhelper.c (vm_defined):
+	  move instruction body to the vm_defined() function.
 
-Wed Nov 16 11:34:20 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed Jun  3 02:29:25 2015  Benoit Daloze  <eregontp@gmail.com>
 
-	* io.c (argf_next_argv): wrong timing of setting ecflags.
-	  fixed the failure of TestArgf#test_textmode introduced at r33662.
+	* test/ruby/test_module.rb: Do not assume class variable order.
+	  Patch by @enebo.
 
-Wed Nov 16 10:45:00 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed Jun  3 01:10:38 2015  Yusuke Endoh  <mame@tsg.ne.jp>
 
-	* ext/-test-/num2int/num2int.c: remove an unnecessary and wrong decl
-	  of rb_stdout.  it's declared in ruby.h correctly.
+	* vm_method.c (rb_method_definition_set): remove a double assignment.
+	  Coverity Scan found this bug.
 
-Wed Nov 16 10:26:41 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed Jun  3 00:04:51 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* bignum.c (rb_big2ull): add a cast to get rid of a VC++ warning.
+	* vm_method.c (rb_alias): rename parameter names.
 
-Wed Nov 16 09:39:27 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Tue Jun  2 23:27:18 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/minitest/unit.rb (assert_raises): experimental fix to run
-	  correctly on chkbuild over 64bit linux. call exception_details only
-	  when the detail is really needed to avoid create needless inspect
-	  under ulimit-ed environment.
+	* method.h: remove rb_method_iseq_t::iseqval.
+	  While making a r50728, iseqval is needed (to mark correctly),
+	  but now just iseqptr is enough.
 
-Wed Nov 16 06:34:30 2011  Tanaka Akira  <akr@fsij.org>
+	* class.c: catch up this fix.
 
-	* test/ruby/test_thread.rb (test_condvar_timed_wait): use
-	  assert_operator.
+	* gc.c: ditto.
 
-Tue Nov 15 21:56:25 2011  Tanaka Akira  <akr@fsij.org>
+	* proc.c: ditto.
 
-	* test/ruby/test_sleep.rb (test_sleep_5sec): 0.1sec tolerance is too
-	  small for busy environment.
+	* vm_method.c: ditto.
 
-Tue Nov 15 20:08:55 2011  Tanaka Akira  <akr@fsij.org>
+Tue Jun  2 21:29:28 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* io.c, thread.c, ext/pty/pty.c, ext/fiddle/closure.c: use
-	  __linux__ macro for consistency.
+	* proc.c (proc_curry): remove a debug line.
 
-Tue Nov 15 14:45:15 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Tue Jun  2 12:43:46 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* include/ruby/ruby.h(NUM2LONG, NUM2INT, NUM2SHORT, NUM2LL,
-	  INT2NUM, UINT2NUM, LONG2NUM, ULONG2NUM, NUM2CHR): wrap by
-	  macros.
+	* method.h: make rb_method_entry_t a VALUE.
+	  Motivation and new data structure are described in [Bug #11203].
 
-Tue Nov 15 13:38:14 2011  Naohisa Goto  <ngotogenome@gmail.com>
+	  This patch also solve the following issues.
 
-	* include/ruby/defines.h (FLUSH_REGISTER_WINDOWS): move sparc asm code
-	  to a separate file sparc.c for preventing inlining optimization.
-	  Patched by Jurij Smakov. [Bug #5244] [ruby-core:40685]
-	* sparc.c (rb_sparc_flush_register_windows): ditto.
-	* configure.in: ditto.
+	  * [Bug #11200] Memory leak of method entries
+	  * [Bug #11046] __callee__ returns incorrect method name in orphan
+	                 proc
 
-Tue Nov 15 13:11:35 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* test/ruby/test_method.rb: add a test for [Bug #11046].
 
-	* include/ruby/ruby.h: get rid of gcc specific rb_long2int(),
-	  NUM2LONG(), NUM2INT(), NUM2SHORT(), NUM2LL(), INT2NUM(),
-	  UINT2NUM(), LONG2NUM(), ULONG2NUM() and NUM2CHR()
-	  implementation. Because 1) They don't make any better code
-	  at all. 2) Inline function have a better debugger supoort.
+	* vm_core.h: remove rb_control_frame_t::me. me is located at value
+	  stack.
 
-Tue Nov 15 09:58:25 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* vm_core.h, gc.c, vm_method.c: remove unlinked_method... codes
+	  because method entries are simple VALUEs.
 
-	* test/ruby/test_io.rb (TestIO#test_fcntl_dupfd): fix OpenBSD test
-	  failure. [ruby-dev:44872]
+	* method.h: Now, all method entries has own independent method
+	  definitions. Strictly speaking, this change is not essential,
+	  but for future changes.
 
-Tue Nov 15 09:50:21 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	  * rb_method_entry_t::flag is move to rb_method_definition_t::flag.
+	  * rb_method_definition_t::alias_count is now
+	    rb_method_definition_t::alias_count_ptr, a pointer to the counter.
 
-	* regcomp.c (print_indent_tree): fix double printing of ENCLOSE_OPTION
-	  children bug. patched by Suraj Kurapati. [ruby-core:40964]
+	* vm_core.h, vm_insnhelper.c (rb_vm_frame_method_entry) added to
+	  search the current method entry from value stack.
 
-Tue Nov 15 01:53:48 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* vm_insnhelper.c (VM_CHECK_MODE): introduced to enable/disable
+	  assertions.
 
-	* test/ruby/test_io.rb (test_fcntl_dupfd): fix test error on
-	  SnowLeopard. Pointed out by CHIKANAGA Tomoyuki. [ruby-dev:44866]
+Tue Jun  2 10:46:36 2015  Eric Wong  <e@80x24.org>
 
-Mon Nov 14 22:06:02 2011  Tanaka Akira  <akr@fsij.org>
+	* test/socket/test_nonblock.rb: new test for sendmsg_nonblock
 
-	* ext/openssl/ossl_pkey.c (ossl_pkey_new_from_file): set close-on-exec
-	  flag.
+Tue Jun  2 09:04:14 2015  Eric Wong  <e@80x24.org>
 
-	* ext/openssl/ossl_x509cert.c (rb_fd_fix_cloexec): ditto.
+	* lib/benchmark.rb: just use Process::CLOCK_MONOTONIC
+	  [ruby-core:69390]
 
-Mon Nov 14 14:54:17 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Mon Jun  1 22:01:27 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* bignum.c (rb_big2ull): fix 32bit platform breakage. we must
-	  not assume sizeof(VALUE) == sizeof(LONG_LONG).
-	* test/-ext-/num2int/test_num2int.rb (class TestNum2int):
-	  fix false assumption on 32bit platform.
+	* lib/mkmf.rb (pkg_config): split --libs if --libs-only-l option
+	  is not available.  patch in [ruby-core:69428] by Hans Mackowiak.
+	  [ruby-core:69421] [Bug #11201]
 
-Mon Nov 14 14:52:54 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Mon Jun  1 21:18:24 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* numeric.c (rb_fix2ushort): fix typo. use num rb_num2ushort()
-	  instead of num2uint().
+	* gc.c (gc_mark_children): remove a garbage character
+	  introduced at the last commit.
 
-Sun Nov 13 10:31:03 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Mon Jun  1 19:24:42 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* include/ruby/ruby.h: add #ifdef comment.
+	* vm_method.c (rb_method_entry_make): do not show warning message
+	  when method_entry is an alias.
 
-Sun Nov 13 10:28:18 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Mon Jun  1 15:47:16 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* include/ruby/ruby.h: add NUM2SHORT(), NUM2USHORT() macros.
-	* numeric.c: ditto.
+	* internal.h: move class related definitions.
 
-	* test/-ext-/num2int/test_num2int.rb: add testcases for NUM2SHORT().
-	* ext/-test-/num2int/num2int.c: ditto.
+Mon Jun  1 15:43:03 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Nov 13 10:23:48 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* class.c: remove needless include pragma for method.h.
 
-	* bignum.c (rb_big2ull): fix off-by-twice bug of NUM2ULL.
-	* test/-ext-/num2int/test_num2int.rb (class TestNum2int):
-	  fix a testcase too.
+	* struct.c: ditto.
 
-Sun Nov 13 10:22:44 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* vm_method.c: ditto.
 
-	* test/-ext-/num2int/test_num2int.rb (class TestNum2int):
-	  add FIXNUM tests.
+Mon Jun  1 05:42:00 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Nov 13 09:57:29 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* eval_intern.h, vm_method.c: move macros to functions.
+	  * SCOPE_TEST(f)  -> rb_frame_visibility_test(flag).
+	  * SCOPE_CHECK(f) -> rb_frame_visibility_check(flag).
+	  * SCOPE_SET(f)   -> rb_frame_visibility_set(flag).
 
-	* numeric.c (check_uint): fix off-by-one bug of NUM2UINT.
-	* bignum.c (rb_big2ulong): fix off-by-one bug of NUM2ULONG.
+	* load.c (load_ext): use it.
 
-	* test/-ext-/num2int/test_num2int.rb: add a testcase for NUM2INT()
-	  NUM2UINT(), NUM2LONG(), NUM2ULONG(), NUM2LL and NUM2ULL().
-	* ext/-test-/num2int/depend: ditto.
-	* ext/-test-/num2int/extconf.rb: ditto.
-	* ext/-test-/num2int/num2int.c: ditto.
+Mon Jun  1 04:47:37 2015  Zachary Scott  <e@zzak.io>
 
-Sun Nov 13 23:47:29 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/date/date_core.c: [DOC] Add comparison of Time and DateTime
+	  Patch provided by @pixeltrix
 
-	* ext/dbm/extconf.rb: use convertible_int.
+Mon Jun  1 04:22:09 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Nov 13 23:45:57 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_core.h (VM_FRAME_MAGIC_DUMMY): introduce new frame type to
+	  recognize dummy frame.
 
-	* lib/mkmf.rb (checking_for): should not modify the result.
+	* vm.c (th_init): use new frame type.
 
-	* lib/mkmf.rb (have_struct_member): accept compiler options.
+	* vm_args.c (raise_argument_error): ditto.
 
-	* lib/mkmf.rb (convertible_int): add restricted support of struct
-	  member, and TYPEOF_ macro.
+Mon Jun  1 04:15:42 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Nov 13 23:21:24 2011  Tanaka Akira  <akr@fsij.org>
+	* class.c (rb_class_has_methods): added to reduce dependency
+	  to internal class data structure.
 
-	* ext/gdbm/gdbm.c (fgdbm_reorganize): set close-on-exec flag after
-	  gdbm_reorganize().  gdbm_reorganize() opens a new database internally.
+	* internal.h: ditto.
 
-Sun Nov 13 19:57:18 2011  Tanaka Akira  <akr@fsij.org>
+	* hash.c (has_extra_methods): use added function.
 
-	* ext/dbm/extconf.rb: rollback for each headers for each libraries.
+Mon Jun  1 04:11:48 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Nov 13 16:24:48 2011  Tanaka Akira  <akr@fsij.org>
+	* gc.c , gc.h (rb_obj_info): export obj_info(VALUE) for debugging.
 
-	* ext/dbm/extconf.rb: treat libc as a choice for a library which
-	  provide ndbm API.
+Mon Jun  1 03:52:55 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Nov 13 15:40:43 2011  Tanaka Akira  <akr@fsij.org>
+	* test/ruby/test_gc.rb: increase timeout seconds for GC stressful
+	  debugging.
 
-	* ext/dbm/extconf.rb: duplicate $libs and $defs when save them.
+Sun May 31 04:18:06 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Nov 13 12:43:48 2011  Tanaka Akira  <akr@fsij.org>
+	* method.h: fix typo of comments.
 
-	* ext/dbm/extconf.rb: rollback $libs and $defs when db detection is
-	  failed.  It fixes -lgdbm -lqdbm when the system has qdbm and gdbm
-	  without gdbm_compat.
+Sun May 31 03:36:42 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Nov 12 21:14:51 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* method.h: add VM_METHOD_TYPE_ALIAS rb_method_definition_t::type
+	  to fix [Bug #11173].
 
-	* test/webrick/test_cgi.rb (class TestWEBrickCGI): respect
-	  RbConfig::CONFIG["LIBPATHENV"]. [Bug #5135] [ruby-core:38653]
-	* test/webrick/test_filehandler.rb (class WEBrick): ditto.
+	  Now, inter class/method alias creates new method entry
+	  VM_METHOD_TYPE_ALIAS, which has an original method entry.
 
-Sat Nov 12 20:57:29 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* vm_insnhelper.c (find_defined_class_by_owner): added.
+	  Search corresponding defined_class from owner class/module.
 
-	* test/ruby/test_io.rb (test_fcntl_dupfd): skip if Fcntl::DUPFD
-	  is not defined. Pointed out by CHIKANAGA Tomoyuki. Thanks.
+	* vm_method.c (rb_method_entry_get_without_cache): return me->klass
+	  directly for defined_class.
 
-Sat Nov 12 17:26:10 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  Now, no need to check me->klass any more.
 
-	* io.c (do_ioctl, ioctl_narg_len, setup_narg, rb_ioctl): use
-	  ioctl_req_t.
+	* vm_method.c (method_entry_set0): separated from method_entry_set().
 
-Sat Nov 12 17:01:49 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_method.c (rb_alias): make method entry has VM_METHOD_TYPE_ALIAS.
 
-	* ext/dbm/extconf.rb (headers.db_check): reduce duplicated code.
+	* vm_method.c (release_method_definition): support VM_METHOD_TYPE_ALIAS.
 
-Sat Nov 12 15:59:42 2011  Tanaka Akira  <akr@fsij.org>
+	* vm_method.c (rb_hash_method_definition): ditto.
 
-	* ext/dbm/extconf.rb: dbm_clearerr should be available in all ndbm
-	  implementation.  If it is not available, it is caused by
-	  header/library mismatch such that Berkeley DB header & gdbm library.
+	* vm_method.c (rb_method_definition_eq): ditto.
 
-	* ext/dbm/dbm.c (fdbm_store): use dbm_clearerr() unconditionally.
-	  gdbm 1.9 provides it as a real function instead of a empty macro.
+	* vm_method.c (release_method_definition): ditto.
 
-Sat Nov 12 13:35:33 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* vm_insnhelper.c (vm_call_method): ditto.
 
-	* bootstraptest/runner.rb: don't suppress SIGINT.
-	  [Feature #5612] [ruby-dev:44856]
+	* vm_insnhelper.c (vm_method_cfunc_entry): ditto.
 
-Sat Nov 12 11:20:36 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* vm_eval.c (vm_call0_body): ditto.
 
-	* io.c (fcntl_narg_len): introduce narg calculation for fcntl instead
-	  of hard coded 256.
-	* io.c (setup_narg): ditto.
+	* gc.c (mark_method_entry): ditto.
 
-Sat Nov 12 11:19:35 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* proc.c (method_def_iseq): ditto.
 
-	* test/ruby/test_io.rb (test_fcntl_dupfd): add another fcntl test.
+	* proc.c (method_cref): ditto.
 
-Sat Nov 12 11:18:17 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* proc.c (rb_method_entry_min_max_arity): ditto.
 
-	* test/ruby/test_io.rb (test_fcntl_lock_freebsd): add a testcase
-	  of fcntl lock for freebsd.
+	* test/ruby/test_alias.rb: add tests.
 
-Sat Nov 12 11:16:32 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* test/ruby/test_module.rb: fix a test to catch up current behavior.
 
-	* io.c (ioctl_narg_len): Linux doesn't have IOCPARM_LEN macro, but
-	  has _IOC_SIZE. support it.
+Sun May 31 03:34:25 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Nov 12 11:13:18 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* vm_method.c (rb_unlink_method_entry): make it static.
 
-	* io.c (rb_ioctl): don't expose our sanity check value to ruby script.
-	  It may change string value meaning if the value is string.
-	  (e.g. MacOS X has F_GETPATH ioctl)
-	* io.c (rb_fcntl): ditto.
+Sun May 31 03:26:58 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Nov 12 11:06:02 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* method.h, vm_method.c (rb_free_method_entry): constify a parameter.
 
-	* io.c (ioctl_req_t): Type of req argument of ioctl() depend on platform.
-	  Moreover almost all linux ioctl can't be represented by 32bit integer
-	  (i.e. MSB is 1). We need wrap ioctl argument type.
-	  [Bug #5429] [ruby-dev:44589]
-	* io.c (struct ioctl_arg): ditto.
-	* io.c (rb_ioctl): ditto.
-	* test/ruby/test_io.rb (test_ioctl_linux): add a testcase for ioctl
+	* vm_core.h: remove useless declaration about rb_unlink_method_entry().
 
-Sat Nov 12 11:00:42 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Sat May 30 18:05:02 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* io.c (struct io_cntl_arg): remove io_p member.
-	* io.c (nogvl_fcntl, do_fcntl, rb_fcntl): separated from ioctl functions.
-	* io.c (nogvl_io_cntl): remove fcntl depended logic.
-	* io.c (io_cntl): ditto.
-	* io.c (rb_io_ctl): ditto.
-	* io.c (rb_io_ioctl): ditto.
+	* lib/tempfile.rb (Remover#call): fixed wrong condition.  introduced at
+	  r50682.
 
-Sat Nov 12 10:59:49 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Sat May 30 16:12:35 2015  Eric Wong  <e@80x24.org>
 
-	* io.c (setup_narg): fix off by one bug.
+	* ext/socket/ancdata.c: use RB_GC_GUARD instead of volatile
+	  [ruby-core:69419] [Feature #11198]
 
-Sat Nov 12 10:56:43 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Sat May 30 15:59:10 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* io.c (+setup_narg): factor out length calculation logic.
-	* io.c (rb_io_ctl): ditto.
+	* lib/tempfile.rb (Tempfile#initialize): initialize @unlinked to fix
+	  test failures introduced at r50682.  I hope that check the results of
+	  tests before committing, at least the tests about the changed feature.
 
-Sat Nov 12 10:52:17 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Sat May 30 11:02:55 2015  Martin Englund <martin@englund.nu>
 
-	* io.c (+ioctl_narg_len) new helper function.
-	* io.c (rb_io_ctl): don't use ioctl specific length check
-	  if caller is fcntl.
+	* doc/dtrace_probes.rdoc: change lingering dtrace probe documentation
+	  from function- to method-
 
-Fri Nov 11 23:00:46 2011  Tanaka Akira  <akr@fsij.org>
+Sat May 30 10:26:09 2015  Masaki Matsushita <glass.saga@gmail.com>
 
-	* ext/dbm/extconf.rb: db_prefix is not required now.
+	* lib/tempfile.rb: refactoring.
+	  * use warn instead of STDERR.print
+	  * remove @tmpname and use @tmpfile.path
+	  * introduce @unlinked flag
+	  * Remover takes only @tmpfile
+	  * mode will be modified just before file reopen
 
-Fri Nov 11 21:13:30 2011  Tanaka Akira  <akr@fsij.org>
+Sat May 30 09:02:51 2015  Eric Wong  <e@80x24.org>
 
-	* ext/gdbm/gdbm.c (fgdbm_initialize): use GDBM_CLOEXEC if available.
+	* include/ruby/intern.h (rb_generic_ivar_table): deprecate
+	* internal.h (rb_attr_delete): declare
+	* marshal.c (has_ivars): use rb_ivar_foreach
+	  (w_ivar): ditto
+	  (w_object): update for new interface
+	* time.c (time_mload): use rb_attr_delete
+	* variable.c (generic_ivar_delete): implement
+	  (rb_ivar_delete): ditto
+	  (rb_attr_delete): ditto
+	  [ruby-core:69323] [Feature #11170]
 
-Fri Nov 11 21:00:05 2011  Tanaka Akira  <akr@fsij.org>
+Sat May 30 09:14:28 2015  Scott Francis  <scott.francis@shopify.com>
 
-	* ext/dbm/extconf.rb: fix dbm_pagfno and dbm_dirfno detection with
-	  Berkeley DB.  Macro definitions needs arguments to detect correctly.
-	  SIZEOF_DSIZE needs -DDB_DBM_HSEARCH because db.h defines datum type
-	  only if DB_DBM_HSEARCH is defined.
+	* cont.c (cont_free): check if ruby_current_thread is still valid.
+	  [Fix GH-914]
 
-Fri Nov 11 18:41:57 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat May 30 08:36:04 2015  Eric Wong  <e@80x24.org>
 
-	* process.c (proc_seteuid): separate an internal wrapper function
-	  from the method implementation.
+	* variable.c (static int special_generic_ivar): move
+	  (rb_generic_ivar_table): rewrite for compatibility
+	  (gen_ivtbl_bytes): new function
+	  (generic_ivar_get): update to use ivar index
+	  (generic_ivar_update): ditto
+	  (generic_ivar_set): ditto
+	  (generic_ivar_defined): ditto
+	  (generic_ivar_remove): ditto
+	  (rb_mark_generic_ivar): ditto
+	  (givar_i): ditto
+	  (rb_free_generic_ivar): ditto
+	  (rb_mark_generic_ivar_tbl): ditto
+	  (rb_generic_ivar_memsize): ditto
+	  (rb_copy_generic_ivar): ditto
+	  (rb_ivar_set): ditto
+	  (rb_ivar_foreach): ditto
+	  (rb_ivar_count): ditto
+	  (givar_mark_i): remove
+	  (gen_ivtbl_mark): new function
+	  (gen_ivar_each): ditto
+	  (iv_index_tbl_extend): update for struct ivar_update
+	  (iv_index_tbl_newsize): ditto
+	  [ruby-core:69323] [Feature #11170]
 
-Fri Nov 11 17:21:15 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat May 30 08:10:46 2015  Eric Wong  <e@80x24.org>
 
-	* lib/mkmf.rb (have_library, find_library, have_func): allow
-	  arguments of function to be checked.
+	* variable.c (iv_index_tbl_make): extract from rb_ivar_set
+	  (iv_index_tbl_extend): ditto
+	  (iv_index_tbl_newsize): ditto
+	  (rb_ivar_set): use extracted functions
+	  [ruby-core:69323] (Part 1)
 
-Fri Nov 11 17:09:45 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri May 29 17:39:14 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* vm_dump.c (HAVE_BACKTRACE): fallback to 0.
+	* tool/make_hgraph.rb: added.
 
-	* vm_dump.c (rb_vm_bugreport): show "Other runtime information"
-	  header only when available.
+Fri May 29 14:39:00 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_dump.c (rb_vm_bugreport): get rid of modifying the content of
-	  VM directly.
+	* compile.c (iseq_compile_each): out of range NTH_REF is always
+	  nil.
 
-	* vm_dump.c (rb_vm_bugreport): check if vm is non-null.
-	  Pointed out by Ikegami Daisuke <ikegami.da@gmail.com>.
-	  Thank you.
+	* parse.y (parse_numvar): check overflow of NTH_REF and range.
+	  [ruby-core:69393] [Bug #11192]
 
-Fri Nov 11 12:36:37 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* util.c (ruby_scan_digits): make public and add length parameter.
 
-	* io.c (pipe_open): Remove fflush(stdin). it's no effect.
-	  Pointed out by Ikegami Daisuke <ikegami.da@gmail.com>.
-	  Thank you.
+Fri May 29 11:18:58 2015  Eric Wong  <e@80x24.org>
 
-Fri Nov 11 07:33:30 2011  Eric Hodel  <drbrain@segment7.net>
+	* ext/socket/ancdata.c (bsock_sendmsg_internal,
+	  bsock_recvmsg_internal):
+	  avoid redundant fcntl on Linux
+	  [ruby-core:69154] [Feature #11145]
+	* ext/socket/init.c (rsock_s_recvfrom_nonblock): ditto
+	* ext/socket/rubysocket.h (MSG_DONTWAIT_RELIABLE): new macro
 
-	* lib/net/http.rb (Net::HTTP::SSL_ATTRIBUTES):  Use symbol keys instead
-	  of string keys to avoid duplicating parameters in
-	  OpenSSL::SSL:SSLContext#set_params.
+Fri May 29 10:30:34 2015  Eric Wong  <e@80x24.org>
 
-Thu Nov 10 15:02:37 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/net/resolv.rb (request): use monotonic clock
+	* lib/net/http.rb (begin_transport, end_transport): ditto
+	  [ruby-core:69384] [Feature #11124]
 
-	* lib/mkmf.rb (have_library, have_func, have_var, have_header):
-	  add compiler option parameter.
+Fri May 29 04:37:38 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Nov 10 07:45:16 2011  Eric Hodel  <drbrain@segment7.net>
+	* ext/objspace/objspace.c: add two methods to debug internals.
 
-	* ext/openssl/lib/openssl/ssl.rb (class OpenSSL::SSL::SSLContext):
-	  Document #set_params.
+	  * ObjectSpace.internal_class_of: return RBASIC_CLASS(obj).
+	  * ObjectSpace.internal_super_of: return RCLASS_SUPER(cls).
 
-Wed Nov  9 11:36:53 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* NEWS: add information about both methods.
 
-	* thread_pthread.c (gvl_yield): don't prevent concurrent sched_yield().
-	  [Bug #5130] [ruby-core:38647]
+	* test/objspace/test_objspace.rb: add tests for both methods.
 
-Wed Nov  9 23:20:22 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu May 28 06:55:53 2015  Anton Davydov  <antondavydov.o@gmail.com>
 
-	* io.c (rb_update_max_fd): fstat(2) can fail with other than
-	  EBADF.  [ruby-dev:44837] [Bug #5593].  Cf.
-	  http://pubs.opengroup.org/onlinepubs/9699919799/functions/fstat.html
+	* ext/tk/sample/figmemo_sample.rb (open_file),
+	  ext/tk/sample/tktextio.rb (TkTextIO): fix typo in messages.
+	  [Fix GH-916]
 
-	* io.c (rb_sysopen): max fd is updated in rb_sysopen_internal()
-	  already.
+Wed May 27 09:50:51 2015  Eric Wong  <e@80x24.org>
 
-Wed Nov  9 22:13:38 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* ext/openssl/ossl_asn1.c (ossl_asn1_traverse, ossl_asn1_decode,
+	  ossl_asn1_decode_all): use RB_GC_GUARD instead of volatile
+	  [ruby-core:69371] [Bug #11185]
 
-	* test/ruby/test_file.rb (TestFile#test_utime_with_minus_time_segv):
-	  fixed previous commit.
+Wed May 27 09:27:30 2015  Eric Wong  <e@80x24.org>
 
-Wed Nov  9 19:53:45 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* lib/drb/drb.rb (set_sockopt): remove redundant fcntl call
+	* lib/drb/unix.rb (set_sockopt): ditto
+	  [ruby-core:69128] [Feature #11137]
 
-	* test/ruby/test_file.rb (TestFile#test_utime_with_minus_time_segv):
-	  add test for r33685.
+Tue May 26 22:10:43 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Wed Nov  9 19:00:44 2011  Koichi Sasada  <ko1@atdot.net>
+	* vm_method.c (rb_alias): should resolve refined methods.
+	  [ruby-core:69360] [Bug #11182]
 
-	* test/ruby/test_fiber.rb: add tests for r33684 (Fiber#resume).
+Tue May 26 21:35:13 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-Wed Nov  9 16:40:49 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* include/ruby/defines.h (RUBY_ATTR_ALLOC_SIZE): fix condition.
 
-	* win32/win32.c (unixtime_to_filetime): should check the return value
-	  of localtime().  reported by snowjail at gmail.com.
-	  [ruby-dev:44838] [Bug #5596]
+Mon May 25 22:35:58 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Thu Nov  9 13:17:25 2011  Koichi Sasada  <ko1@atdot.net>
+	* tool/redmine-backporter.rb (rel): after the relations is changed,
+	  @changesets is no longer right.
 
-	* cont.c (rb_fiber_m_transfer, rb_fiber_resume): prohibit using
-	  "resume" after "transfer" method are used.  You should not mix
-	  "resume" fiber and "transfer" fiber.
-	  [Bug #5526]
+Mon May 25 11:27:14 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* NEWS: add information about this change.
+	* win32/win32.c (setup_overlapped): seek to the file end only when
+	  writing (mode:a), not reading (mode:a+, read).
 
-Wed Nov  9 11:40:37 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon May 25 00:27:37 2015  Benoit Daloze  <eregontp@gmail.com>
 
-	* template/Doxyfile.tmpl (INCLUDE_PATH): add srcdir and include.
-	  [ruby-core:40843] [Bug #5597]
+	* numeric.c (Numeric#negative?): [DOC] Fix call-seq.
+	  Patch by @yui-knk. [Fixes GH-908]
 
-Wed Nov  9 11:02:54 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Sun May 24 01:35:22 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* thread.c (do_select): fix cast, tv_sec is time_t.
+	* debug.c (ruby_debug_print_id): use rb_id2name() for fprintf().
 
-Wed Nov  9 10:32:20 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat May 23 18:38:46 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* configure.in: should not use test -e for portability.
-	  [ruby-core:40841] [Bug #5594]
+	* man/*.1: updated dates in man pages.
+	  [ruby-dev:48988] [Bug #11171]
 
-Wed Nov  9 04:52:16 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+Sat May 23 03:10:58 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/psych/lib/psych/tree_builder.rb: dump complex numbers,
-	  rationals, etc with reference ids.
-	* ext/psych/lib/psych/visitors/yaml_tree.rb: ditto
-	* ext/psych/lib/psych/visitors/to_ruby.rb: loading complex numbers,
-	  rationals, etc with reference ids.
-	* test/psych/test_object_references.rb: corresponding tests
+	* win32/win32.c (rb_w32_write_console): should return the count of
+	  actually eaten characters, include escape sequences.
 
-Tue Nov  8 23:34:37 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri May 22 22:36:14 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
-	* ext/dbm/dbm.c (fdbm_fetch, fdbm_key, fdbm_delete, fdbm_store)
-	  (fdbm_has_key, fdbm_has_value): get rid of overflow.
+	* lib/prime.rb: Remove obsolete Prime.new
+	  patch by Ajay Kumar. [Fixes GH-891]
 
-	* ext/gdbm/gdbm.c (rb_gdbm_fetch2, rb_gdbm_nextkey)
-	  (rb_gdbm_delete, fgdbm_store, fgdbm_has_key): ditto.
+Fri May 22 21:13:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/dbm/dbm.c (fdbm_delete_if): hide intermediate objects.
+	* include/ruby/intern.h (rb_sym_count): move `rb_sym_all_symbols`
+	  to a symbol.c specific section.  a part of patch by Lourens
+	  Naude.
 
-	* ext/gdbm/gdbm.c (fgdbm_delete_if): ditto.
+Fri May 22 20:56:33 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/dbm/extconf.rb: check size of datum.dsize to get rid of
-	  overflow.
+	* complex.c (f_complex_polar): simple bug reproduced only when y is
+	  a float but x is not a float.
 
-Tue Nov  8 23:30:21 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Fri May 22 19:42:06 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* addr2line.c (PATH_MAX): define if not defined. [ruby-core:40840]
+	* process.c (rb_spawn_process): do not discard global escape
+	  status.  [ruby-core:69304] [Bug #11166]
 
-Tue Nov  8 23:26:49 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* process.c (rb_execarg_spawn): extract the start procedure in a
+	  parent process with ensuring the end procedure.
 
-	* ext/tk/tcltklib.c (rb_thread_critical): fix type.
+Fri May 22 16:48:32 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/tk/tcltklib.c (eventloop_sleep, lib_eventloop_core): int is
-	  enough for micro seconds.  may need to check overflow in the
-	  setter though.
+	* NEWS: added news for net-telnet and rake
 
-	* ext/tk/tcltklib.c (RSTRING_LENINT): check overflow if necessary.
+Thu May 21 20:27:07 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* ext/tk/tcltklib.c (RbTk_ALLOC_N): wrapper for ckalloc() which
-	  takes an int.
+	* configure.in (RUBY_DTRACE_POSTPROCESS): cmp -b is GNU extension.
+	  darwin uses GNU cmp, and FreeBSD and Solaris are not.
+	  Note that accidentally equals to expected result.
 
-	* ext/tk/tcltklib.c (ip_ruby_cmd_receiver_get, tcltklib_compile_info):
-	  get rid overflow.
+Thu May 21 18:00:19 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/tk/tcltklib.c (tcltklib_compile_info): constified.
+	* iseq.c: constify.
 
-Tue Nov  8 20:50:45 2011  Tanaka Akira  <akr@fsij.org>
+	* iseq.h: ditto.
 
-	* test/dbm/test_dbm.rb: split tests for read only database.
+	* method.h: ditto.
 
-	* test/gdbm/test_gdbm.rb: ditto.
+	* proc.c: ditto.
 
-Tue Nov  8 18:59:07 2011  Tanaka Akira  <akr@fsij.org>
+	* vm_method.c: ditto.
 
-	* ext/pty/pty.c (MasterDevice): define only when used.
-	  (SlaveDevice): ditto.
-	  (deviceNo): ditto.
+Thu May 21 17:44:53 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Nov  8 17:59:24 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* proc.c: fix issues caused by binding created from Method#to_proc.
+	  [Bug #11163]
 
-	* include/ruby/ruby.h (rb_long2int): define as a macro always, so
-	  that cpp conditionals can tell if it is provided.
+	* vm.c (vm_cref_new_toplevel): export as rb_vm_cref_new_toplevel().
 
-Tue Nov  8 17:30:50 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/test_method.rb: add some assertions.
 
-	* lib/mkmf.rb (cpp_command): remove multiple -arch flags since cpp
-	  cannot work.
+Thu May 21 17:29:26 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Nov  8 14:50:55 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* lib/matrix.rb: added documentation for Matrix#empty and Matrix#/
+	  [Feature #10070][ruby-dev:48433] Patch by @gogotanaka
 
-	* io.c (io_fwrite): call rb_w32_write_console() only if FMODE_TTY is
-	  set.  this is the one of the reason of IO writing slowness of Windows
-	  in 1.9.3 or later.
+Thu May 21 17:02:43 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Nov  8 11:01:04 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* proc.c: rename functions.
+	  * method_get_def() -> method_def()
+	  * method_get_iseq() -> method_def_iseq()
+	  * method_get_cref() -> method_cref()
 
-	* ext/pty/pty.c (get_device_once): FreeBSD 8 supported O_CLOEXEC flag
-	  for posix_openpt, but FreeBSD 9's posix_openpt doesn't support
-	  O_CLOEXEC and fails if specified.
+Thu May 21 16:52:44 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Nov  8 02:36:45 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* proc.c (rb_method_get_iseq): rename to rb_method_iseq.
 
-	* include/ruby/encoding.h (ECONV_NEWLINE_DECORATOR_READ_MASK,
-	  ECONV_NEWLINE_DECORATOR_WRITE_MASK): new macro.
+	* iseq.c: catch up this fix.
 
-	* io.c (rb_io_extract_modeenc, pipe_open, prep_stdio, argf_next_argv):
-	  set TEXTMODE_NEWLINE_DECORATOR_ON_WRITE for textmode on creating IO
-	  if the flag is available.
+	* iseq.h: commit ditto.
 
-	* io.c (make_writeconv): drop decorators for reading.
+Thu May 21 15:41:45 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* io.c (make_readconv): drop decorators for writing.
+	* lib/net/telnet.rb: gemify net-telnet.
+	  [Feature #11083]
+	* gems/bundled_gems: added net-telnet to bundled gems.
 
-	* io.c (do_writeconv): existing writeconv is not the condition to raise
-	  ArgumentError.  should check textmode or not.
+Thu May 21 15:37:32 2015  Zachary Scott  <e@zzak.io>
 
-	* test/ruby/test_io_m17n.rb
-	  (TestIO_M17N#test_{cr,lf,crlf}_decorator_on_stdout): test above
-	  changes.
+	* vm_method.c: Remove private attribute warning [Bug #10967]
+	  Patch by @spastorino [Fixes GH-849]
+	  https://github.com/ruby/ruby/pull/849
 
-Mon Nov  7 22:03:47 2011  Tanaka Akira  <akr@fsij.org>
+	* test/ruby/test_module.rb: Update test for changes
 
-	* ext/gdbm/gdbm.c (fgdbm_initialize): set close-on-exec flag.
+Thu May 21 10:59:43 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Nov  7 20:31:52 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+	* proc.c (method_proc): rename to method_to_proc.
 
-	* ext/psych/lib/psych/scalar_scanner.rb: make sure strings that look
-	  like base 60 numbers are serialized as quoted strings.
-	* test/psych/test_string.rb: test for change.
+Thu May 21 10:51:54 2015  Jake Worth  <jakeworth82@gmail.com>
 
-Mon Nov  7 20:26:37 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+	* io.c (rb_f_select): [DOC] Fixes for grammar and style.
+	  [Fix GH-906]
 
-	* test/psych/test_yamlstore.rb: make test case inherit from MiniTest,
-	  load psych/helper so that psych is loaded.
+Thu May 21 08:25:19 2015  Eric Wong  <e@80x24.org>
 
-Mon Nov  7 20:18:29 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+	* variable.c (Init_var_tables): init generic_iv_tbl
+	  (rb_generic_ivar_table, generic_ivar_get, generic_ivar_set,
+	   generic_ivar_defined, generic_ivar_remove,
+	   rb_mark_generic_ivar, givar_i, rb_mark_generic_ivar_tbl,
+	   rb_free_generic_ivar, rb_copy_generic_ivar, rb_ivar_foreach,
+	   rb_ivar_count): remove checks for uninitialize generic_iv_tbl
+	[ruby-core:69155] [Feature #11146]
 
-	* test/psych/test_yamldbm.rb: Test case should inherit from MiniTest,
-	  load psych/helper so that psych and friends are loaded.
+Thu May 21 04:11:03 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Nov  7 20:15:44 2011  Tanaka Akira  <akr@fsij.org>
+	* iseq.c (exception_type2symbol): show correct bug message.
 
-	* ext/dbm/extconf.rb: check dbm_pagfno() and dbm_dirfno().
+Wed May 20 23:19:05 2015  Yusuke Endoh  <mame@ruby-lang.org>
 
-	* ext/dbm/dbm.c: use above to set close-on-exec flag.
+	* lib/base64.rb: Fix rdoc-formatting for padding argument.
+	  [fix GH-905][ci skip] Patch by @davydovanton
 
-Mon Nov  7 20:05:16 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed May 20 13:16:23 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* io.c (io_fflush): remove fsync().
+	* configure.in (DEPRECATED_BY): deprecate warning with preferable
+	  alternative.
 
-	* io.c (rb_io_flush, rb_io_rewind): fsync() here.
+	* configure.in (RUBY_FUNC_ATTRIBUTE): allow attribute arguments in
+	  the macro.
 
-	these changes reduces fsync() calls to improve performance.
-	first reported at [ruby-list:48515] by ak7 at mail.goo.ne.jp .
-	[Bug #5585]
+Wed May 20 11:23:24 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Mon Nov  7 19:43:10 2011  Tanaka Akira  <akr@fsij.org>
+	* vm_dump.c (rb_print_backtrace): return value of libexec's backtrace
+	  is size_t, so simply cast as int.
 
-	* io.c (rb_close_before_exec): use F_MAXFD if available.
-	  F_MAXFD is available on NetBSD since NetBSD 2.0.
+Tue May 19 18:54:41 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Nov  7 19:25:16 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* iseq.c (rb_iseq_compile_with_option): check source type, must be
+	  an IO or a String.  [ruby-core:69219] [Bug #11159]
 
-	* test/ruby/test_io_m17n.rb
-	  (TestIO_M17N#test_default_stdout_stderr_mode): new test for
-	  r33627-33629.  see [backport #5565]
+Tue May 19 17:15:03 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Mon Nov  7 01:14:22 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* lib/benchmark.rb: Update Benchmark documentation and formatting.
+	  [fix GH-903][ci skip] Patch by @davydovanton
 
-	* lib/debug.rb: add help for 'pp' and 'r[estart]'. patch
-	  from Sho Hashimoto. [Bug #5093] [ruby-dev:44222]
+Tue May 19 13:10:08 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Nov  6 14:49:58 2011  Tanaka Akira  <akr@fsij.org>
+	* numeric.c (num_positive_p): should false on Bignum 0.
+	  http://twitter.com/rafaelfranca/status/600509783427391488
+	  [ruby-core:69173] [Feature #11151]
 
-	* ext/socket/rubysocket.h (rsock_recvmsg): declared.
+Tue May 19 11:22:28 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* ext/socket/ancdata.c (rsock_recvmsg): extracted from
-	  nogvl_recvmsg_func.
-	  (nogvl_recvmsg_func): use rsock_recvmsg.
+	* lib/uri/rfc2396_parser.rb (initialize_pattern):
+	  URI::Generic.build should accept port as a string.
+	  pattern[:PORT] is not defined for long.
+	  by Dave Slutzkin <daveslutzkin@fastmail.fm>
+	  https://github.com/ruby/ruby/pull/804 fix GH-804
 
-	* ext/socket/unixsocket.c (recvmsg_blocking): use rsock_recvmsg.
+Tue May 19 11:18:46 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Nov  6 03:22:36 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* include/ruby/ruby.h (rb_data_typed_object_alloc),
+	  (rb_data_object_alloc): add old names for source level backward
+	  compatibilities.
 
-	* test/openssl/test_engine.rb: add test for engine cipher. RC4 is used
-	  because AES is not supported by the "openssl" engine currently.
+	* gc.c (rb_data_object_alloc, rb_data_typed_object_alloc): add
+	  aliases for binary level backward compatibilities.
 
-Sun Nov  6 00:11:52 2011  Tanaka Akira  <akr@fsij.org>
+Tue May 19 09:54:44 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/test/unit.rb (Test::Unit::Options#non_options): options[:ruby]
-	  should be an array.  This fixes
-	  "./ruby test/runner.rb test/testunit/test_parallel.rb"
-	  [ruby-dev:44782]
+	* include/ruby/ruby.h (Data_Make_Struct0): needs function pointer
+	  casts to fix function overloading in C++.
 
-Sat Nov  5 20:30:30 2011  Martin Duerst  <duerst@it.aoyama.ac.jp>
+Tue May 19 09:43:56 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* insns.def: Some fixes and tweaks to English explanations
+	* include/ruby/ruby.h (Data_Make_Struct0, TypedData_Make_Struct0):
+	  explicit cast from void* is necessary as implicit cast is
+	  disallowed in C++.
 
-Sat Nov  5 19:11:50 2011  Tanaka Akira  <akr@fsij.org>
+Mon May 18 15:31:31 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* io.c (rb_cloexec_fcntl_dupfd): don't clear try_dupfd_cloexec if
-	  fcntl(F_DUPFD) failed as fcntl(F_DUPFD_CLOEXEC).
+	* include/ruby/intern.h (rb_f_notimplement): should not respond to
+	  not-implemented methods.  as the address inside a DLL and the
+	  imported address are different on Windows, use an exported
+	  variable to share the same address.
 
-Sat Nov  5 18:05:12 2011  Tanaka Akira  <akr@fsij.org>
+Mon May 18 13:55:01 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* ext/socket/socket.c (rsock_socketpair0): refactored.
+	* lib/monitor.rb (mon_try_enter, mon_enter): should reset @mon_count
+	  just in case the previous owner thread dies without mon_exit.
+	  [fix GH-874] Patch by @chrisberkhout
 
-Sat Nov  5 17:55:52 2011  Tanaka Akira  <akr@fsij.org>
+Sun May 17 17:21:29 2015  Eric Wong  <e@80x24.org>
 
-	* ext/socket/init.c (rsock_socket0): don't clear try_sock_cloexec if
-	  SOCK_CLOEXEC is not a reason for EINVAL.
+	* lib/webrick/utils.rb (set_non_blocking): use IO#nonblock=
+	* (set_close_on_exec): use IO#close_on_exec=
+	  [Feature #11136]
 
-Sat Nov  5 16:27:52 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+Sun May 17 15:01:26 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/pathname/lib/pathname.rb, ext/tk/lib/multi-tk.rb,
-	  ext/tk/sample/demos-en/widget, lib/benchmark.rb, lib/irb/cmd/fork.rb,
-	  lib/mkmf.rb, lib/net/ftp.rb, lib/net/smtp.rb, lib/open3.rb,
-	  lib/pstore.rb, lib/rexml/element.rb, lib/rexml/light/node.rb,
-	  lib/rinda/tuplespace.rb, lib/rss/maker/base.rb,
-	  lib/rss/maker/entry.rb, lib/scanf.rb, lib/set.rb, lib/shell.rb,
-	  lib/shell/command-processor.rb, lib/shell/process-controller.rb,
-	  lib/shell/system-command.rb, lib/uri/common.rb: remove unused block
-	  arguments to avoid creating Proc objects.
+	* numeric.c (num_positive_p, num_negative_p): add methods
+	  Numeric#positive? and Numeric#negative?.
+	  [ruby-core:69173] [Feature #11151]
 
-Sat Nov  5 15:45:04 2011  Tanaka Akira  <akr@fsij.org>
+	* numeric.c (flo_positive_p, flo_negative_p): specialized
+	  functions for Float.
 
-	* ext/socket/init.c (rsock_socket0): extract single socket() call with
-	  CLOEXEC handling from rsock_socket.
+	* complex.c (Init_Complex): Complex do not have positive? and
+	  negative? methods
 
-Sat Nov  5 13:49:40 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+Sun May 17 14:57:42 2015  Eric Wong  <e@80x24.org>
 
-	* lib/pathname.rb (Pathname#find): return an enumerator if
-	  no block is given.
+	* lib/webrick/server.rb (accept_client): avoid redundant fcntl call
+	  [Feature #11137]
 
-	* test/pathname/test_pathname.rb: add tests for above.
+Sun May 17 12:13:33 2015  Eric Wong  <e@80x24.org>
 
-	[ruby-dev:44797] [Feature #5572]
+	* ext/socket/init.c (cloexec_accept): support nonblock flag and
+	  use SOCK_NONBLOCK if possible
+	* ext/socket/init.c (rsock_s_accept_nonblock):
+	  update cloexec_accept call
+	* ext/socket/init.c (accept_blocking): ditto for blocking
+	* test/socket/test_nonblock.rb: check nonblock? on accepted socket
+	  [Feature #11138]
 
-Sat Nov  5 11:18:12 2011  Tanaka Akira  <akr@fsij.org>
+Sun May 17 03:58:59 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-	* ext/socket/socket.c (rsock_socketpair0): don't clear
-	  try_sock_cloexec if SOCK_CLOEXEC is not a reason for EINVAL.
+	* load.c (loaded_feature_path): stop returning false negatives for
+	  filenames which are trailing substrings of file extensions.  For
+	  example, 'b', which a trailing substring of ".rb" should not return
+	  false. [Bug #11155][ruby-core:69206]
 
-Fri Nov  4 14:08:19 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+	* test/ruby/test_autoload.rb: test for fix
 
-	* ext/openssl/ossl_pkey_rsa.c (rsa_generate): [SECURITY] Set RSA
-	  exponent value correctly.  Awful bug.  This bug caused exponent of
-	  generated key to be always '1'.  By default, and regardless of e
-	  given as a parameter.
+Sat May 16 21:41:24 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	  !!! Keys generated by this code (trunk after 2011-09-01) must be
-	  re-generated !!! (ruby_1_9_3 is safe)
+	* string.c: added documentation for character sequence \' with String#sub
+	  [Bug #11132][ruby-core:69121][fix GH-900][ci skip] Patch by @shishir127
 
-	* test/openssl/test_pkey_rsa.rb: Add tests for default exponent and
-	  specifying exponent by a parameter.
+Sat May 16 21:38:05 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Fri Nov  4 01:31:25 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* enum.c: fix a sample code. Patch by @eagletmt
+	  [fix GH-901][ci skip]
 
-	* test/openssl/test_engine.rb: add first tests for builtin "openssl"
-	  engine.
+Sat May 16 21:17:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Nov  4 08:41:26 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* gc.c (rb_data_object_wrap, rb_data_typed_object_wrap): rename
+	  alloc as wrap.  these functions do not allocate data pointers
+	  but just wrap the given pointers.
 
-	* ext/openssl/extconf.rb:
-	* ext/openssl/ossl_engine.c: add some missing OpenSSL engines.
-	  Thanks, Yui Naruse, for providing the patch!
-	  [Bug #5548] [ruby-core:40670]
+Sat May 16 19:59:24 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Fri Nov  4 04:54:10 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* win32/win32.c (rb_w32_accept): simplified.
 
-	* win32/configure.bat: disable delayed expansion of enironment variable.
-	  [Bug #5517] [ruby-core:40531]
+Fri May 15 18:28:20 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Nov  4 03:45:22 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* array.c (rb_ary_assoc, rb_ary_rassoc): [DOC] the result when key
+	  was found is the existing element, not a new array.  reported by
+	  Giau Nguyen <giaunv AT nustechnology.com>.
 
-	* io.c (make_writeconv): fixed typo of previous commit.
+Fri May 15 08:24:28 2015  Takeyuki FUJIOKA  <xibbar@ruby-lang.org>
 
-Fri Nov  4 01:56:30 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* lib/cgi/cookie.rb: Implement HttpOnly flag for cookies.
+	  [fix GH-887] Patch by @martinpovolny
 
-	* io.c (make_writeconv): unversal_newline converter is for reading.
-	  so, if the io is text mode and has ECONV_UNIVERSAL_NEWLINE_DECORATOR
-	  flag, use crlf_newline converter for writing.
-	  this change fixes the problem about the luck of CR up Kernel.p and
-	  Kernel.puts to stdout/stderr on Windows.
+Fri May 15 06:54:19 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
-Fri Nov  4 01:04:48 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* variable.c: Change autoload to call `require` through Ruby rather
+	  than directly calling `rb_require_safe`.  This allows things like
+	  RubyGems to intercept file loading done though `autoload`.
+	  [Feature #11140]
 
-	* ext/readline/readline.c (Init_readline): like r18313, libedit's
-	  replace_history_entry may use offset instead of which.
-	  so introduce history_replace_offset_func and initialize it.
+	* test/ruby/test_autoload.rb: Test for change.
 
-	* ext/readline/readline.c (hist_set): use history_replace_offset_func.
+Wed Apr  8 19:18:02 2015  Shota Fukumori (sora_h)  <her@sorah.jp>
 
-Fri Nov  4 00:53:35 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* enum.c (enum_grep_v, grep_i, grep_iter_i, Init_enum):
+	  Implement Enumerable#grep_v. [Feature #11049]
 
-	* ext/readline/readline.c (Init_readline): fix wrong condition.
+Thu May 14 15:54:13 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Nov  3 23:53:04 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* ext/pathname/lib/pathname.rb: Remove condition of RUBY_VERSION <= 1.9.
+	  [Feature #11082]
 
-	* encoding.c (rb_locale_charmap): ignore calling nl_langinfo_codeset()
-	  on Windows except cygwin. [experimental]
+Wed May 13 17:10:37 2015  Masaki Matsushita <glass.saga@gmail.com>
 
-Thu Nov  3 22:45:09 2011  Tanaka Akira  <akr@fsij.org>
+	* enum.c (enum_to_a): revert r50457.
+	  it requires recursion check.
+	  then, it doesn't make performance improvement.
+	  [Bug #11130] [Feature #9118]
 
-	* ext/socket/socket.c (rsock_socketpair0): extracted from
-	  rsock_socketpair to set close-on-exec flag for each socketpair()
-	  call.
+Wed May 13 11:13:40 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Nov  3 22:12:41 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* parse.y (parse_gvar): separate message for gvar without
+	  non-space characters from message for invalid identifiers.
 
-	* ext/socket/init.c (rsock_socket): set close-on-exec flag when
-	  SOCK_CLOEXEC is not available.
+Tue May 12 22:18:27 2015  Masaki Matsushita <glass.saga@gmail.com>
 
-Thu Nov  3 08:36:00 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* enum.c (enum_to_a): fix incompatibility introduced in r50457.
+	  [Bug #11130]
 
-	* test/openssl/test_engine.rb: call Engine::cleanup on exit.
-	  Patch provided by Yui Naruse, thanks!
-	  [Bug #5547] [ruby-core:40669]
+	* test/ruby/test_enum.rb: test for above.
 
-Wed Nov  2 21:36:00 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue May 12 17:08:03 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* complex.c (nucomp_rationalize): fix function.  [ruby-core:40667]
-	  [Bug #5546]
+	* method.h: remove unused declaration.
 
-Wed Nov  2 08:16:45 2011  Tanaka Akira  <akr@fsij.org>
+Mon May 11 10:58:45 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* lib/webrick/utils.rb: fix fcntl call.
+	* gems/bundled_gems: Update minitest-5.6.1 and power_assert-0.2.3.
 
-	* lib/drb/unix.rb: ditto.
+Mon May 11 00:20:31 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Nov  2 00:43:59 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* include/ruby/ruby.h (Data_Make_Struct, TypedData_Make_Struct):
+	  allocate wrapper data object before allocating DATA_PTR to get
+	  rid of possible memory leak when the former failed.
 
-	* test/psych/test_yamldbm.rb: avoid platform dependency.
-	  patch by Naohisa Goto. [ruby-dev:44763] [Bug #5535]
-	* test/syck/test_yamldbm.rb: ditto.
+Sun May 10 21:32:45 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Nov  2 00:14:15 2011  Shugo Maeda  <shugo@ruby-lang.org>
+	* gc.c (gc_mark_children): call dmark function for non-NULL
+	  pointers only, so that DATA_PTR can be NULL safely now.
 
-	* test/ruby/test_marshal.rb: renamed methods duplicated with those
-	  of marshaltestlib.rb.
+Sun May 10 16:23:58 2015  Kazuki Tsujimoto  <kazuki@callcc.net>
 
-Tue Nov  1 22:08:27 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* proc.c (proc_binding): fix segmentation fault on marking phase.
+	  envptr of newenvval should not be NULL.
 
-	* configure.in: reject llvm-gcc.
+	  You can reproduce by
+	   make test-all TESTS='--gc-stress -n test_to_proc_binding ruby/test_method.rb'
 
-Tue Nov  1 21:39:00 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Sun May 10 12:41:18 2015  Masaki Matsushita <glass.saga@gmail.com>
 
-	* io.c (rb_cloexec_pipe): remove workaround of r33587.
-	  The bug of NetBSD is fixed on Mon Oct 31 21:31:29 UTC 2011.
-	  http://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=45545
+	* ext/zlib/zlib.c (rb_gzreader_external_encoding):
+	  define GzipReader#external_encoding.
+	  [Bug #10900]
 
-Tue Nov  1 19:49:08 2011  Tanaka Akira  <akr@fsij.org>
+	* test/zlib/test_zlib.rb: test for above.
 
-	* io.c (rb_io_reopen): call rb_fd_fix_cloexec instead of
-	  rb_maygvl_fd_fix_cloexec.
+Sun May 10 11:57:48 2015  Masaki Matsushita <glass.saga@gmail.com>
 
-Tue Nov  1 19:00:30 2011  Tanaka Akira  <akr@fsij.org>
+	* ext/win32ole/win32ole_variant.c: fix typo "indicies".
+	  the patch is from davydovanton <antondavydov.o at gmail.com>.
+	  [fix GH-892]
 
-	* io.c (rb_io_reopen): call rb_maygvl_fd_fix_cloexec after freopen().
+	* lib/rubygems/indexer.rb: ditto.
 
-Tue Nov  1 17:17:26 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* test/rubygems/test_gem_indexer.rb: ditto.
 
-	* file.c (file_expand_path): reset coderange after expanding path.
+Sun May 10 11:44:37 2015  Masaki Matsushita <glass.saga@gmail.com>
 
-Tue Nov  1 14:55:29 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* string.c (rb_str_crypt): Raise ArgumentError when
+	  string passed to String#crypt contains null.
+	  the patch is from jrusnack <jrusnack at redhat.com>.
+	  [Bug #10988] [fix GH-853]
 
-	* io.c (nogvl_io_cntl): rb_cloexec_fcntl_dupfd's 2nd argument is int.
+	* test/ruby/test_string.rb: test for above.
 
-	* process.c (move_fds_to_avoid_crash): ditto.
+Sun May 10 11:23:03 2015  Masaki Matsushita <glass.saga@gmail.com>
 
-Tue Nov  1 13:14:33 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* enum.c (enum_to_a): Use size to set array capa when possible.
+	  the patch is from HonoreDB <aweiner at mdsol.com>.
+	  [fix GH-444]
 
-	* vsnprintf.c (BSD_vfprintf): support 'll' prefix.
+Sat May  9 06:48:36 2015  Eric Wong  <e@80x24.org>
 
-	* vsnprintf.c (__sfeof): rename to avoid the collision with NetBSD's
-	  one.
+	* ext/socket/ancdata.c (bsock_recvmsg_internal): GC guard
+	  [Bug #11123]
 
-	* vsnprintf.c (__sferror): ditto.
+Fri May  8 22:57:24 2015  takiy33  <takiy33@gmail.com>
 
-	* vsnprintf.c (__sclearerr): ditto.
+	* test/matrix/test_matrix.rb (test_determinant): refactor test on
+	  Matrix#determinant, by merging with test_det for an alias method
+	  det.  [Fix GH-897]
 
-	* vsnprintf.c (__sfileno): ditto.
+Fri May  8 15:43:11 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Tue Nov  1 12:36:16 2011  Tanaka Akira  <akr@fsij.org>
+	* lib/net/imap.rb (body_ext_mpart): should work even if body-fld-dsp
+	  is omitted.  [ruby-core:69093] [Bug #11128]
 
-	* internal.h (rb_maygvl_fd_fix_cloexec): change the visibility for
-	  ext/socket.
+Fri May  8 15:05:57 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Nov  1 12:00:53 2011  Tanaka Akira  <akr@fsij.org>
+	* doc/syntax/control_expressions.rdoc: fix a missing "a"
+	  [fix GH-888][ci skip] Patch by @riffraff
 
-	* io.c (rb_maygvl_fd_fix_cloexec): renamed from fd_set_cloexec.
+Fri May  8 12:11:33 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* internal.h (rb_maygvl_fd_fix_cloexec): declared.
+	* vm_eval.c (rb_method_call_status): resolve refined method entry
+	  to check if undefined.  [ruby-core:69064] [Bug #11117]
 
-	* ext/socket/init.c (cloexec_accept): use rb_maygvl_fd_fix_cloexec.
-	  (rsock_s_accept_nonblock): use rb_update_max_fd.
-	  (rsock_s_accept): use rb_update_max_fd.
+Thu May  7 22:22:59 2015  Sho Hashimoto  <sho-h@ruby-lang.org>
 
-Tue Nov  1 08:24:40 2011  Tanaka Akira  <akr@fsij.org>
+	* proc.c: [DOC] fix Binding#local_variable_set example. [ci skip]
 
-	* ext/socket/init.c (cloexec_accept): new function to use accept4 if
-	  available.
-	  (rsock_s_accept_nonblock): use cloexec_accept.
-	  (accept_blocking): ditto.
+Thu May  7 11:32:57 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* ext/socket/extconf.rb: check accept4.
+	* Makefile.in (rbconfig.rb): add rule to make.
 
-Tue Nov  1 07:31:55 2011  Tanaka Akira  <akr@fsij.org>
+Thu May  7 05:14:39 2015  Eric Wong  <e@80x24.org>
 
-	* ext/socket/ancdata.c (nogvl_recvmsg_func): use MSG_CMSG_CLOEXEC if
-	  available.
+	* ext/socket/lib/socket.rb (connect_nonblock): use IO#wait_writable
+	* lib/drb/drb.rb (DRB::DRbTCPSocket#alive?): use IO#wait_readable
+	* lib/webrick/httpserver.rb (run): ditto
+	* lib/resolv.rb (request): ditto for single socket case
+	  [ruby-core:68943] [Feature #11081]
 
-	* ext/socket/unixsocket.c (recvmsg_blocking): ditto.
+Wed May  6 22:49:54 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Nov  1 05:59:41 2011  Tanaka Akira  <akr@fsij.org>
+	* vm_eval.c (rb_method_call_status): undefined refined method is
+	  not callable unless using.  [ruby-core:69064] [Bug #11117]
 
-	* ext/socket/socket.c (rsock_socketpair): use SOCK_CLOEXEC if
-	  available.
+Sun May  3 22:40:06 2015  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Tue Nov  1 02:56:17 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* ext/-test-/file/fs.c: need to include sys/statvfs.h
+	  to use statvfs().
 
-	* ruby.c (load_file_internal): convert the encoding of load path if
-	  needed by platform.  calling open() was replaced by rb_cloexec_open()
-	  at r33549, but the function expected UTF-8 pathname on Windows.
-	  (open() expected "locale" pathname.)
-	  reported by taco via IRC.
+	* ext/-test-/file/extconf.rb: check the existence of
+	  sys/statvfs.h
 
-	* ruby.c (load_file): change the type of the 2nd parameter to pass its
-	  encoding to load_file_internal().
+Sun May  3 21:59:48 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ruby.c (process_options, rb_load_file): follow above change.
-	  NOTE: we should pass encoding information to rb_load_file().
+	* lib/yaml.rb: fix typo. [ci skip][fix GH-890]
+	  Patch by @miketheman
 
-Mon Oct 31 23:49:38 2011  Tanaka Akira  <akr@fsij.org>
+Sun May  3 10:02:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/socket.c (rsock_socketpair): extracted from
-	  rsock_sock_s_socketpair.
+	* range.c (linear_object_p, range_include): test if covered for
+	  linear objects.  [ruby-core:69052] [Bug #11113]
 
-Mon Oct 31 23:31:53 2011  Tanaka Akira  <akr@fsij.org>
+Fri May  1 13:30:24 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/init.c (rsock_socket): use SOCK_CLOEXEC if available.
+	* dln.c (dln_load): check if a different libruby is loaded by the
+	  extension library, and then bail out to get rid of very
+	  frequently reported stale bug reports.
 
-Mon Oct 31 21:47:44 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Apr 30 19:51:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* io.c (rb_cloexec_pipe): NetBSD 6.0 will support pipe2(2),
-	  but its return value is -1 or larger than 0.
+	* compile.c (iseq_compile_each): revert r46873 and r46875, not to
+	  allow to execute private readers by pretending op assign.
+	  [ruby-core:68984] [Bug #11096]
 
-Mon Oct 31 22:04:54 2011  Tanaka Akira  <akr@fsij.org>
+Thu Apr 30 17:02:33 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/dbm/dbm.c (fdbm_initialize): use O_CLOEXEC if available.
+	* rational.c: Added documentation for rational literal.
+	  [Bug #11075][fix GH-885][ci skip] Patch by @shishir127
 
-Mon Oct 31 21:47:48 2011  Tanaka Akira  <akr@fsij.org>
+Thu Apr 30 16:39:44 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* include/ruby/intern.h (rb_fd_fix_cloexec): renamed from
-	  rb_fd_set_cloexec.
+	* ext/socket/ipsocket.c (init_inetsock_internal): preserve errno
+	  before other library calls and use rb_syserr_fail.
+	  [ruby-core:68531] [Bug #10975]
 
-	* io.c: follow the above renaming.
+Thu Apr 30 16:22:16 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/pty/pty.c: ditto.
+	* parse.y (lambda): push and reset cmdarg_stack in lambda body.
+	  [ruby-core:69017] [Bug #11107]
 
-	* ext/socket/init.c: ditto.
+Sun Apr 26 07:36:48 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/socket.c: ditto.
+	* enc/utf_8.c (code_to_mbclen, code_to_mbc): reject values larger
+	  than UTF-8 max codepoints.  [Feature #11094]
 
-	* ext/socket/ancdata.c: ditto.
+Sat Apr 25 14:26:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/unixsocket.c: ditto.
+	* string.c (str_buf_cat): expand later so that the buffer can be
+	  larger for further use.  [Bug #11080] [Bug #11095]
 
-Mon Oct 31 21:02:43 2011  Tanaka Akira  <akr@fsij.org>
+Fri Apr 24 23:48:45 2015  Akinori MUSHA  <knu@iDaemons.org>
 
-	* lib/resolv.rb (Resolv::DNS): retry IO.select for premature wakeup.
+	* misc/ruby-electric.el: Import version 2.2.3 from
+	  https://github.com/knu/ruby-electric.el.
 
-Mon Oct 31 20:14:22 2011  Tanaka Akira  <akr@fsij.org>
+Fri Apr 24 10:40:02 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* io.c (fd_set_cloexec): clear CLOEXEC flag for standard file
-	  descriptors.
-	  (rb_cloexec_dup): use rb_cloexec_fcntl_dupfd.
-	  (rb_cloexec_fcntl_dupfd): use F_DUPFD_CLOEXEC if available.
+	* win32/win32.c (rb_w32_{getc,putc}): removed.  they are needed for old
+	  ruby (before 1.8), but not now.
 
-Mon Oct 31 19:14:11 2011  Tanaka Akira  <akr@fsij.org>
+Fri Apr 24 08:40:13 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* test/resolv/test_dns.rb: don't check maximum slept time.
-	  ruby doesn't guarantee the maximum time because it is not a
-	  realtime application.
+	* win32/win32.c: remove bcc related code.
 
-Mon Oct 31 13:10:06 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* include/ruby/win32.h: ditto.
 
-	* win32/win32.c (setfl): extract from fcntl().
+Fri Apr 24 08:21:07 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* win32/win32.c (dupfd): new function to support F_DUPFD. based on a
-	  patch written by akr.
+	* win32/win32.c (rb_acrt_lowio_lock_fh): wrap _pioinfo(i)->lock.
 
-	* win32/win32.c (fcntl): use above functions.
+	* win32/win32.c (rb_acrt_lowio_unlock_fh): ditto.
 
-	* include/ruby/win32.h (F_DUPFD): define. [experimental]
+Fri Apr 24 06:47:19 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* include/ruby/win32.h (F_SETFL): change the value to correspond with
-	  other platforms.
+	* win32/win32.c (_filbuf): msvc14 doesn't have it, use _fgetc_nolock.
 
-Mon Oct 31 12:37:50 2011  Tanaka Akira  <akr@fsij.org>
+	* win32/win32.c (_flsbuf): msvc14 doesn't have it, use _fputc_nolock.
 
-	* ext/pty/pty.c (get_device_once): use O_CLOEXEC for posix_openpt if
-	  available.
+	* win32/win32.c (vcruntime_file): define vcruntime_file on msvc14
+	  because it doesn't export FILE's internal structure.
 
-Mon Oct 31 12:05:24 2011  Tanaka Akira  <akr@fsij.org>
+	* win32/win32.c (FILE_COUNT): added to abstract FILE->_cnt.
 
-	* io.c (rb_cloexec_dup2): check oldfd == newfd at first.
-	  pointed by KOSAKI Motohiro.  [ruby-dev:44713]
+	* win32/win32.c (FILE_READPTR): added to abstract FILE->_ptr.
 
-Mon Oct 31 10:50:26 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* win32/win32.c (FILE_FILENO): added to abstract FILE->_file.
 
-	* io.c (rb_cloexec_fcntl_dupfd): this function needs F_DUPFD.
+	* win32/win32.c (init_stdhandle): use FILE_FILENO.
 
-	* io.c (nogvl_io_cntl): use rb_cloexec_fcntl_dupfd() only if the
-	  platform has F_DUPFD.
+	* win32/win32.c (rb_w32_getc): use FILE_COUNT and FILE_READPTR.
 
-Mon Oct 31 00:50:00 2011  Luis Lavena  <luislavena@gmail.com>
+	* win32/win32.c (rb_w32_putc): ditto.
 
-	* configure.in: check -fno-omit-frame-pointer acceptance and usage
-	  under MinGW. [ruby-core:39957] [Bug #5407]
+Fri Apr 24 06:37:07 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Mon Oct 31 00:16:11 2011  Tanaka Akira  <akr@fsij.org>
+	* win32/win32.c (dupfd): use _set_osfhnd.
 
-	* include/ruby/intern.h (rb_cloexec_fcntl_dupfd): declared.
+	* win32/win32.c (rb_w32_wopen): use _set_osflags.
 
-	* io.c (rb_cloexec_fcntl_dupfd): new function.
-	  (nogvl_io_cntl): use rb_cloexec_fcntl_dupfd.
+Thu Apr 24 05:38:01 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* process.c (move_fds_to_avoid_crash): use rb_cloexec_fcntl_dupfd.
+	* gc.c (gc_mark_roots): fox to work PRINT_ROOT_TICKS.
 
-Sun Oct 30 22:46:46 2011  Tanaka Akira  <akr@fsij.org>
+Fri Apr 24 04:49:05 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* configure.in: check pipe2.
+	* win32/Makefile.sub: MSVC14 have struct timespec.
 
-	* io.c (rb_cloexec_pipe): use pipe2 if available.
+	* win32/rtname.cmd: support vcruntime140.dll.
 
-Sun Oct 30 22:32:44 2011  Tanaka Akira  <akr@fsij.org>
+	* time.c (localtime_with_gmtoff_zone): MSVC14 doesn't have tzname and
+	  daylight but have _tzname and _daylight.
 
-	* ruby.c (fill_standard_fds): use fstat() instead of fcntl(F_GETFD)
-	  for MinGW.  reported by Luis Lavena.  [ruby-core:40526] [Bug #5516]
+Thu Apr 23 11:35:55 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Oct 30 21:12:47 2011  Tanaka Akira  <akr@fsij.org>
+	* vm_eval.c (rb_obj_instance_eval, rb_obj_instance_exec): allow
+	  symbols to just instance_eval/exec, except for definition of
+	  singletons.  [ruby-core:68961] [Bug #11086]
 
-	* include/ruby/intern.h (rb_cloexec_pipe): declared.
+Thu Apr 23 10:01:36 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* io.c (rb_cloexec_pipe): new function.
-	  (rb_pipe): use rb_cloexec_pipe.
+	* lib/delegate.rb: fix a typo.
+	  [fix GH-881][ci skip] Patch by @Zorbash
 
-	* thread_pthread.c (rb_thread_create_timer_thread): use
-	  rb_cloexec_pipe.
+Wed Apr 22 18:36:50 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Sun Oct 30 20:06:07 2011  Tanaka Akira  <akr@fsij.org>
+	* lib/net/imap.rb (move, uid_move): support the MOVE command defined
+	  in RFC6851.  Patch by ojab ojab.
+	  [ruby-core:68960] [Feature #11077]
 
-	* io.c (rb_cloexec_dup): refine control flow.
-	  (rb_cloexec_dup2): ditto.
+Tue Apr 22 12:42:12 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
 
-Sun Oct 30 18:45:50 2011  Tanaka Akira  <akr@fsij.org>
+	* test/ruby/test_object.rb: add tests for Kernel#String and Kernel#Array.
+	  [fix GH-879][fix GH-880] Patch by @yui-knk
 
-	* ruby.c (fill_standard_fds): new function to open closed standard
-	  file descriptors.
-	  (ruby_sysinit): call fill_standard_fds.
+Tue Apr 21 20:46:02 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sun Oct 30 10:50:36 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/test_object.rb: renamed tests to explicitly class name.
+	  [fix GH-877] Patch by @yui-knk
 
-	* tool/rbinstall.rb (install_recursive, bin-comm): split mere
-	  string not path name.  [ruby-core:40462] [Bug #5492]
+Tue Apr 21 05:31:00 2015  Eric Wong  <e@80x24.org>
 
-Sun Oct 30 10:47:20 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/socket/lib/socket.rb (connect_internal): avoid common exceptions
+	  from connect_nonblock. [ruby-core:68909]
 
-	* io.c (rb_cloexec_dup, rb_cloexec_dup2): CLOEXEC has been set if
-	  dup3 succeeded.
+Mon Apr 20 23:46:53 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Sun Oct 30 09:58:48 2011  Tanaka Akira  <akr@fsij.org>
+	* win32/win32.c (rb_w32_wreadlink): follow the official format of
+	  REPARSE_DATA_BUFFER structure.
 
-	* io.c (rb_cloexec_dup): don't allocate standard file descriptors.
+Mon Apr 20 20:23:04 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Sun Oct 30 08:29:51 2011  Tanaka Akira  <akr@fsij.org>
+	* common.mk ($(arch)-fake.rb): revert r50354 because bsdmake seems not
+	  to handle such substitution.
 
-	* io.c (rb_cloexec_dup2): don't set CLOEXEC for standard file
-	  descriptors.
+	* tool/expand-config.rb: convert path separators here.
 
-Sun Oct 30 07:47:10 2011  Tanaka Akira  <akr@fsij.org>
+Mon Apr 20 16:52:20 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* configure.in: check dup3.
+	* tool/fake.rb: don't fake libdir.  use libdirname instead.
 
-	* io.c (rb_cloexec_dup2): use dup3 if available.
+Mon Apr 20 16:49:52 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Sat Oct 29 22:06:37 2011  Tanaka Akira  <akr@fsij.org>
+	* lib/mkmf.rb (MakeMakefile#configuration): DESTDIR should never affect
+	  top_srcdir and builddir.
 
-	* include/ruby/intern.h (rb_cloexec_dup2): declared.
+Mon Apr 20 16:18:17 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* io.c (rb_cloexec_dup2): new function.
-	  (io_reopen): use rb_cloexec_dup2.
+	* common.mk ($(arch)-fake.rb): fix the path separator up for Windows.
 
-Sat Oct 20 21:08:18 2011  Tajima Akio <artonx@yahoo.co.jp>
+Mon Apr 20 15:02:47 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* win32/Makefile.sub (CONFIG_H): have stdint.h if VC2010.
-	  [Bug #5243]
+	* win32/win32.c (rb_w32_wreadlink): fixed a bug that a junction misses
+	  its drive letter.
 
-Sat Oct 29 20:59:08 2011  Tanaka Akira  <akr@fsij.org>
+Mon Apr 20 12:54:56 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* io.c (rb_cloexec_dup): use F_DUPFD_CLOEXEC if available.
+	* ext/openssl/*: use license instead of licence.
+	  [fix GH-876][ci skip] Patch by @davydovanton
+	* lib/net/https.rb: ditto.
 
-Sat Oct 29 20:00:26 2011  Tanaka Akira  <akr@fsij.org>
+Mon Apr 20 12:42:40 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* include/ruby/intern.h (rb_cloexec_dup): declared.
+	* benchmark/bm_so_meteor_contest.rb: fix a typo.
+	  [fix GH-876][ci skip] Patch by @davydovanton
+	* tool/bisect.sh: ditto.
+	* tool/update-deps: ditto.
 
-	* io.c (rb_cloexec_dup): new function.
-	  (ruby_dup): use rb_cloexec_dup.
+Mon Apr 20 11:10:46 2015  Eric Wong  <e@80x24.org>
 
-	* ext/pty/pty.c (pty_getpty): use rb_cloexec_dup.
+	* ext/socket/socket.c (sock_connect_nonblock): do not raise EISCONN
+	  [ruby-core:68926] [Feature #11072]
+	* test/socket/test_nonblock.rb: check non-EISCONN on 2nd connect
 
-	* ext/openssl/ossl_bio.c (ossl_obj2bio): ditto.
+Sun Apr 19 12:19:17 2015  Chad Brewbaker  <crb002@gmail.com>
 
-Sat Oct 29 16:11:34 2011  Tanaka Akira  <akr@fsij.org>
+	* ext/{etc,openssl,tk}: Adding parens and comparisons around
+	  assignments to get rid of Wparentheses warnings.  [Fix GH-875]
 
-	* ext/sdbm/_sdbm.c (sdbm_prep): use O_CLOEXEC if available.
+Sun Apr 19 10:42:54 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Oct 29 14:26:56 2011  Tanaka Akira  <akr@fsij.org>
+	* hash.c (get_env_cstr): environment variables must be ASCII
+	  compatible, as dummy encodings and wide char encodings are
+	  unsupported now.
 
-	* io.c (rb_cloexec_open): use O_CLOEXEC if available.
+Sat Apr 18 15:18:56 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Oct 29 12:57:15 2011  Tanaka Akira  <akr@fsij.org>
+	* ext/json/parser/parser.rl: raise with messages in UTF-8
+	  encoding.  [ruby-core:67386] [Bug #10705]
 
-	* process.c (ruby_setsid): use rb_cloexec_open.
-	  (rb_daemon): ditto.
+Fri Apr 17 11:58:34 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ruby.c (load_file_internal): ditto.
+	* string.c (STR_SET_EMBED): clear NOFREE flag at embedding as
+	  embedded strings no longer refer static strings.
+	  [ruby-core:68436] [Bug #10942]
 
-	* file.c (rb_file_s_truncate): ditto.
-	  (file_load_ok): ditto.
+Thu Apr 16 05:15:50 2015  Eric Wong  <e@80x24.org>
 
-	* random.c (fill_random_seed): ditto.
+	* NEWS: note IO#wait_readable change in r50263
 
-	* ext/pty/pty.c (chfunc): ditto.
-	  (get_device_once): ditto.
+Thu Apr 16 05:09:36 2015  Eric Wong  <e@80x24.org>
 
-	* ext/io/console/console.c (console_dev): ditto.
+	* lib/net/protocol.rb (rbuf_fill): use IO#wait_*able
+	* lib/net/http/generic_request.rb (wait_for_continue): ditto
+	  [ruby-core:68891] [Feature #11056]
 
-Sat Oct 29 10:40:19 2011  Tanaka Akira  <akr@fsij.org>
+Wed Apr 15 18:43:43 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* include/ruby/intern.h (rb_cloexec_open): declared.
+	* vm_trace.c (rb_tracepoint_new): fix documentation.
+	  Commented by @emilsoman.
 
-	* io.c (fd_set_cloexec): extracted from rb_fd_set_cloexec.
-	  (rb_cloexec_open): new function.
-	  (sysopen_func): use rb_cloexec_open.
-	  (rb_sysopen_internal): use rb_update_max_fd instead of
-	  rb_fd_set_cloexec.
+Wed Apr 15 17:36:51 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Oct 29 09:05:07 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_trace.c (rb_tracepoint_new): Add documentation for
+	  rb_tracepoint_new C level API [ci skip]
+	  Provided by @emilsoman. [fix GH-869]
 
-	* thread_pthread.h: no Structured Exception Handling like macros.
-	  [ruby-core:40432] [Bug #5491]
+Wed Apr 15 10:37:40 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Fri Oct 28 22:05:34 2011  Tanaka Akira  <akr@fsij.org>
+	* doc/contributors.rdoc: fix a typo. Patch by @davydovanton
+	  [fix GH-872][ci skip]
+	* doc/syntax/methods.rdoc: ditto.
+	* ext/digest/sha2/sha2.c: ditto.
+	* ext/socket/ipsocket.c: ditto.
+	* ext/tk/*: ditto.
 
-	* ext/sdbm/_sdbm.c: RCS $Id$ removed.
+Wed Apr 15 07:51:23 2015  Yuki Yugui Sonoda  <yugui@yugui.jp>
 
-Thu Oct 27 18:58:00 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* doc/extension.ja.rdoc: Added description of TypedData_XXX.
+	  Deprecated the old DATA_XXX.
+	  Reviewed by ko1 and nobu.
+	  Fixes [ruby-dev:40881] #3064
 
-	* parse.y (parser_nextc): set encoding for the buffer of ripper.
+	* doc/extension.rdoc: ditto.
 
-Fri Oct 28 06:06:08 2011  Tanaka Akira  <akr@fsij.org>
+Wed Apr 15 07:34:49 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/sdbm/_sdbm.c (sdbm_prep): set FD_CLOEXEC flags for file
-	  descriptors.
-	  (fd_set_cloexec): new function.
+	* thread_pthread.c (reserve_stack): keep sp safe zone to get rid
+	  of crash by -fstack-check.  [ruby-core:68740] [Bug #11030]
 
-Fri Oct 28 03:01:27 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+Tue Apr 14 16:03:49 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* vm_insnhelper.c (vm_call_cfunc): adding back useless hack.  For some
-	  reason, this fixes CFP errors on OS X 10.7.
+	* tool/merger.rb (versionup): should also increment revision when
+	  changing teeny.
 
-Fri Oct 28 00:09:31 2011  Tanaka Akira  <akr@fsij.org>
+Tue Apr 14 11:24:56 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/sdbm/_sdbm.c (sdbm_prep): refactored for less nesting.
+	* ext/-test-/printf/printf.c (uint_to_str): renamed to get rid of
+	  conflict on cygwin.  [ruby-core:68877] [Bug #11065]
 
-Thu Oct 27 18:28:18 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Apr 14 08:59:04 2015  Zachary Scott  <e@zzak.io>
 
-	* configure.in (RUBY_DEFINE_IF): revert r33534 partially to get
-	  rid of AS_ECHO which is not available in autoconf 2.61.
-	  [ruby-dev:44702]
+	* gc.c: [DOC] Improve documentation for ObjectSpace.count_objects
+	  with regards to `:TOTAL` key, with patch by @schneems [Fixes GH-871]
+	  https://github.com/ruby/ruby/pull/871 [Bug #11067]
 
-Thu Oct 27 16:10:46 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Apr 13 22:44:07 2015  Tanaka Akira  <akr@fsij.org>
 
-	* bignum.c (rb_big_divide): raise ZeroDivisionError if divisor is
-	  zero, as well as Fixnum.  [ruby-core:40429] [Bug #5490]
+	* test/lib/envutil.rb (File.mkfifo): Defined using mkfifo command.
 
-Thu Oct 27 14:56:22 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/test_io.rb: Use File.mkfifo.
 
-	* configure.in (RUBY_FUNC_ATTRIBUTE): unset temporary variable.
+	* test/ruby/test_file_exhaustive.rb: Ditto.
 
-	* configure.in (RUBY_STACK_GROW_DIRECTION): substitute CPU name as
-	  shell variable name.  based on the patch by The Written Word Inc. at
-	  [ruby-core:40421].  [Bug #5488]
+	* test/ruby/test_process.rb: Ditto.
 
-Thu Oct 27 09:57:56 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Mon Apr 13 21:20:20 2015  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-	* include/ruby/ruby.h (SIZE_MAX): define SIZE_MAX if not defined.
-	  patched by The Written Word Inc. [ruby-core:40422] [Bug #5489]
+	* ext/openssl/lib/openssl/ssl.rb: stricter hostname verification
+	  following RFC 6125. with the patch provided by Tony Arcieri and
+	  Hiroshi Nakamura [ruby-core:61545] [Bug #9644]
+	* test/openssl/test_ssl.rb: add tests for above.
 
-Thu Oct 27 08:47:38 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+Sun Apr 12 18:40:04 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* ext/psych/parser.c: remove unused variable.
+	* ext/json/json.gemspec: bump version to 1.8.2.
+	* ext/json/lib/json/version.rb: ditto.
 
-Thu Oct 27 08:38:41 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+Sun Apr 12 18:12:07 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* ext/openssl/extconf.rb: add -Wall flag by default when compiler is
-	  GCC.
+	* ext/json/json.gemspec, lib/rdoc/rdoc.gemspec: added gemspec directly.
+	* defs/default_gems, tool/rbinstall.rb: removed default_gems definition.
+	  it make simple installation for default gems.
 
-Wed Oct 26 15:24:25 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Apr 12 17:35:17 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* file.c (rb_file_join): honor input encodings than ASCII-8BIT.
-	  [ruby-core:40338] [Bug #5483]
+	* ext/json/*, test/json/*: Reverted r50231.  Because it's not
+	  working with cross-compile environment.
 
-Tue Oct 25 21:52:31 2011  Tanaka Akira  <akr@fsij.org>
+Sun Apr 12 15:34:59 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* include/ruby/defines.h: use "__sparc" instead of "sparc" and
-	  "__sparc__".
+	* parse.y (arg): fix segfault by null caused by syntax error.
+	  [ruby-core:68851] [Bug #10957]
 
-	* dln.c: ditto.
+Sun Apr 12 15:11:16 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	  [ruby-dev:44694]
+	* lib/rubygems/test_case.rb: use explicitly exception class and reverted
+	  to require JSON library for rubygems tests with Ruby 2.2.0 or earlier.
 
-Tue Oct 25 06:34:39 2011  Eric Hodel  <drbrain@segment7.net>
+Sun Apr 12 15:10:18 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* re.c (match_aref):  Use <code> around indexing examples to prevent
-	  hyperlinks.  [ruby-talk:389396]
+	* ext/io/wait/wait.c (io_wait_readable): simply returns that IO is
+	  readable without blocking, but no longer returns EOF.
 
-Mon Oct 24 23:55:31 2011  Tanaka Akira  <akr@fsij.org>
+	* ext/io/wait/wait.c (io_ready_p, io_wait_readable): try polling
+	  first and check FIONREAD optionally to see if EOF.
+	  [ruby-core:36805] [Feature #4849]
 
-	* complex.c: use "__sun" instead of "__sun__" to detect SunOS.
+Sun Apr 12 14:53:23 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* math.c: ditto.
+	* lib/rubygems/test_case.rb: fixed json load error for rubygems tests.
 
-	* hash.c: ditto.
+Sun Apr 12 14:13:28 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* atomic.h: ditto.
+	* gc.c: Document require name for ObjectSpace methods.
+	  [ci skip][fix GH-860] Patch by @schneems
 
-	* ext/io/wait/wait.c: ditto.
+Sun Apr 12 13:54:05 2015  Tanaka Akira  <akr@fsij.org>
 
-	[ruby-dev:44693]
-
-Mon Oct 24 22:45:37 2011  Tanaka Akira  <akr@fsij.org>
-
-	* io.c: use "__sun" instead of "sun" to detect SunOS.
-
-	* dln.c: ditto.
-
-	* cont.c: ditto.
-
-	* ext/sdbm/_sdbm.c: ditto.
-
-	[ruby-dev:44693]
-
-Mon Oct 24 22:38:08 2011  Tanaka Akira  <akr@fsij.org>
+	* test/ruby/test_io.rb: New test that open(fifo) doesn't block other
+	  threads.
 
-	* ext/pty/pty.c (get_device_once): delay rb_fd_set_cloexec() until
-	  grantpt() on Solaris.  grantpt() doesn't work with CLOEXEC on
-	  Solaris 10.
-	  reported by Naohisa GOTO.  [ruby-dev:44688] [Bug #5475]
+Sun Apr 12 13:52:18 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Mon Oct 24 08:18:14 2011  Tanaka Akira  <akr@fsij.org>
+	* ext/coverage/coverage.c: Remove extension from require argument.
+	  [ci skip][fix GH-870] Patch by @yui-knk
 
-	* io.c (copy_stream_fallback_body): check nil for EOF of read method.
-	  patch by Eric Wong.  [ruby-core:39134] [Bug #5237]
+Sun Apr 12 10:29:14 2015  Eric Wong  <e@80x24.org>
 
-Sun Oct 23 18:21:23 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* ext/openssl/ossl_ssl.c (ossl_ssl_connect_nonblock):
+	  support `exception: false'
+	* (get_no_exception): move function location
+	* ext/socket/socket.c (sock_connect_nonblock):
+	  support `exception: false'
+	* test/openssl/test_pair.rb (test_connect_accept_nonblock_no_exception):
+	  test `exception: false' on connect,
+	  rename from `test_accept_nonblock_no_exception'
+	* test/socket/test_nonblock.rb (test_connect_nonblock_no_exception):
+	  new test
 
-	* ext/tk/MANUAL_tcltklib.eng: fix typo.
+Sun Apr 12 09:57:16 2015  Tanaka Akira  <akr@fsij.org>
 
-Sun Oct 23 18:03:31 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/test_file_exhaustive.rb: Test a block device on GNU/Linux.
 
-	* numeric.c (rb_infinity, rb_nan): aggregated member initializers
-	  need braces.
+Sun Apr 12 09:24:03 2015  Tanaka Akira  <akr@fsij.org>
 
-Sun Oct 23 16:43:43 2011  Naohisa Goto  <ngotogenome@gmail.com>
+	* test/ruby/test_file_exhaustive.rb: Test a file not owned.
 
-	* ext/io/wait/wait.c: ioctl(2) is declared in unistd.h on Solaris.
+Sun Apr 12 09:05:44 2015  Tanaka Akira  <akr@fsij.org>
 
-Sun Oct 23 16:33:35 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* ext/fiddle/depend: Fix "Wrong mix of special targets" error with
+	  OpenBSD make.
 
-	* ext/tk/MANUAL_tcltklib.eng: fix typo. reported by Mimura-san.
-	  [ruby-dev:44683] [Bug #5471]
+Sun Apr 12 09:04:37 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Sun Oct 23 08:01:29 2011  Tanaka Akira  <akr@fsij.org>
+	* test/ruby/test_file_exhaustive.rb: Windows doesn't support Unix file
+	  modes.
 
-	* io.c (rb_fd_set_cloexec): set close-on-exec flag only if F_GETFD is
-	  defined.  reported by Luis Lavena.  [ruby-core:40281] [Bug #5470]
+Sun Apr 12 08:56:44 2015  Tanaka Akira  <akr@fsij.org>
 
-Sat Oct 22 19:48:50 2011  Tanaka Akira  <akr@fsij.org>
+	* ext/-test-/file/fs.c: OpenBSD needs sys/param.h before sys/mount.h.
 
-	* test/openssl/test_ssl.rb (test_multibyte_read_write): start server
-	  for each length to avoid race condition.
+Sun Apr 12 08:52:01 2015  Tanaka Akira  <akr@fsij.org>
 
-Sat Oct 22 18:49:24 2011  Tanaka Akira  <akr@fsij.org>
+	* test/ruby/test_file_exhaustive.rb: Test suid, sgid and sticky file.
 
-	* include/ruby/intern.h (rb_fd_set_cloexec): declared.
+Sat Apr 11 23:48:30 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* io.c (rb_fd_set_cloexec): new function.
-	  (ruby_dup): call rb_fd_set_cloexec to set close-on-exec flag.
-	  (rb_sysopen_internal): ditto.
-	  (rb_pipe): ditto.
-	  (io_reopen): ditto.
-	  (io_cntl): ditto.
+	* template/fake.rb.in: Don't assign baseruby, Because it's affect to
+	  Makefile of native gem like json on bundled gems.
 
-	* process.c (rb_f_exec): change the default :close_others option to
-	  true.
-	  (rb_f_system): ditto.
-	  (move_fds_to_avoid_crash): call rb_fd_set_cloexec to set
-	  close-on-exec flag.
-	  (ruby_setsid): ditto.
-	  (rb_daemon): ditto.
+Sat Apr 11 23:33:22 2015  Tanaka Akira  <akr@fsij.org>
 
-	* thread_pthread.c (rb_thread_create_timer_thread): call
-	  rb_fd_set_cloexec to set close-on-exec flag.
+	* file.c (rb_f_test): Consider nsec for "=", "<" and ">" for "test"
+	  method.
 
-	* ruby.c (load_file_internal): ditto.
+Sat Apr 11 23:26:05 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* file.c (rb_file_s_truncate): ditto.
-	  (file_load_ok): ditto.
+	* tool/rbinstall.rb: support destdir for native extension gem.
 
-	* random.c (fill_random_seed): ditto.
+Sat Apr 11 21:02:06 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/pty/pty.c (chfunc): ditto.
-	  (get_device_once): ditto.
+	* test/ruby/test_file_exhaustive.rb
+	  (TestFileExhaustive#test_stat_socket_p): r50226 accidentally missed
+	  the guard for non-unix environments.
 
-	* ext/openssl/ossl_bio.c (ossl_obj2bio): ditto.
+Sat Apr 11 20:14:21 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* ext/socket/init.c (rsock_socket): ditto.
-	  (rsock_s_accept_nonblock): ditto.
-	  (rsock_s_accept): ditto.
+	* ext/json/*, test/json/*, defs/default_gems: Gemify JSON library.
+	  [fix GH-867][Feature #11057]
+	* test/ruby/test_extlibs.rb: removed json gem from existence extensions.
+	* gems/bundled_gems: added json gem into bundled gem.
+	* lib/rdoc/rubygems_hook.rb: ignored no json environment.
+	* lib/rubygems/test_case.rb, test/rubygems/*: ditto.
+	* lib/rdoc/test_case.rb, test/rdoc/*: ditto.
 
-	* ext/socket/socket.c (rsock_sock_s_socketpair): ditto.
+Sat Apr 11 15:56:58 2015  Tanaka Akira  <akr@fsij.org>
 
-	* ext/socket/ancdata.c (discard_cmsg): ditto.
-	  (make_io_for_unix_rights): ditto.
+	* test/ruby/test_file_exhaustive.rb: Create sample files lazily.
 
-	* ext/socket/unixsocket.c (unix_recv_io): ditto.
+Sat Apr 11 14:03:47 2015  Tanaka Akira  <akr@fsij.org>
 
-	* ext/io/console/console.c (console_dev): ditto.
+	* test/ruby/test_file_exhaustive.rb: Test character device using
+	  /dev/null.
 
-	[ruby-core:38140] [Feature #5041]
+Sat Apr 11 10:59:58 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Oct 22 17:46:27 2011  Tanaka Akira  <akr@fsij.org>
+	* lib/mkmf.rb (append_cppflags, append_cflags, append_ldflags):
+	  utility methods to append compiler options.
 
-	* lib/resolv.rb: fix a exception name in previous patch.
+Sat Apr 11 08:22:24 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Sat Oct 22 17:43:33 2011  Tanaka Akira  <akr@fsij.org>
+	* lib/rdoc/text.rb: removed duplicated code.
 
-	* lib/resolv.rb: make timeout configurable for DNS query.
-	  patch by Eric Wong.  [ruby-core:38533] [Feature #5100]
+Sat Apr 11 04:46:42 2015  Eric Wong  <e@80x24.org>
 
-Sat Oct 22 02:07:48 2011  Naohisa Goto  <ngotogenome@gmail.com>
+	* lib/net/protocol.rb (rbuf_fill): avoid exception with read_nonblock
+	  [ruby-core:68787] [Feature #11044]
 
-	* numeric.c (rb_infinity, rb_nan): use union to prevent bus error
-	  caused by misalignment.  [Bug #5469] [ruby-dev:44657]
+Fri Apr 10 23:57:44 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* include/ruby/missing.h (INFINITY, NAN): ditto
+	* dir.c (need_normalization): use getattrlist() if fgetattrlist()
+	  is unavailable, on OSX 10.5.  [ruby-core:68829] [Bug #11054]
 
-Fri Oct 21 22:02:17 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Apr 10 22:29:21 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* gc.c (initial_params): pack in a struct.
+	* lib/mkmf.rb (try_compile): pass the given werror flag to try_do
+	  to check if stderr is empty.
 
-	* gc.c (rb_gc_set_params): set parameters always.
-	  [ruby-dev:44648] [Bug #5467]
+	* lib/mkmf.rb (try_cflags, try_ldflags): default werror to true.
 
-Fri Oct 21 12:10:20 2011  Naohisa Goto  <ngotogenome@gmail.com>
+	* win32/Makefile.sub (WERRORFLAG): remove useless option.  VC does
+	  not make warnings of unknown command option an error.
 
-	* atomic.h: change Solaris checking macro because atomic_ops can work
-	  not only with Sun Studio but also with Fujitsu C Compiler.
+Fri Apr 10 19:34:24 2015  Tanaka Akira  <akr@fsij.org>
 
-Fri Oct 21 02:11:00 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* test/ruby/test_file_exhaustive.rb: Test socket.
 
-	* ext/openssl/ossl_ns_spki.c: Complete documentation.
-	* test/openssl/test_ns_spki.rb: Integrate SPKI#to_text.
+Fri Apr 10 19:38:46 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Oct 20 22:47:28 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* test/objspace/test_objspace.rb: remove debug prints.
 
-	* win32/win32.c (socklist_insert, socklist_lookup, socklist_delete):
-	  new functions to wrap of st_insert(), st_lookup() and st_delete() to
-	  socklist.
-	  allocating socklist is deferred until it is really needed.
+Fri Apr 10 19:35:51 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* win32/win32.c (exit_handler): delete socklist only if it is
-	  initialized.
+	* ext/objspace/objspace.c: add ObjectSpace.count_imemo_objects method
+	  to count imemo objects for each type.
 
-	* win32/win32.c (rb_w32_sysinit, StartSockets): refactoring: move
-	  initialization of select_mutex to StartSockets().
+	* test/objspace/test_objspace.rb: add a test.
 
-	* win32/win32.c (exit_handler): refactoring: delete select_mutex only
-	  if winsock is used.
+	* NEWS: describe about this addition.
 
-Thu Oct 20 22:38:53 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+Fri Apr 10 19:34:24 2015  Tanaka Akira  <akr@fsij.org>
 
-	* ext/openssl/ossl_pkcs5.c: add note on timing attacks and general
-	  documentation.
+	* test/ruby/test_file_exhaustive.rb: Test anonymous pipe.
 
-Thu Oct 20 21:19:15 2011  Naohisa Goto  <ngotogenome@gmail.com>
+Fri Apr 10 19:31:56 2015  Tanaka Akira  <akr@fsij.org>
 
-	* vm_eval.c (check_funcall): set array elements one-by-one to fix
-	  compile error with Fujitsu C Compiler 5.6 on Solaris 10 on Sparc.
-	  [Bug #5464] [ruby-dev:44632]
+	* test/ruby/test_file_exhaustive.rb: Test named pipe.
 
-Thu Oct 20 13:09:35 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Apr 10 19:10:34 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* include/ruby/defines.h (flush_register_windows): use software
-	  trap on Debian Sparc 32-bit userspace.  [Bug #5244]
+	* ext/objspace/objspace.c (setup_hash): unify common routine.
 
-Thu Oct 20 12:28:22 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+Fri Apr 10 18:29:49 2015  Tanaka Akira  <akr@fsij.org>
 
-	* test/openssl/test_pkcs5.rb: add RFC 6070 tests for PBKDF2 with
-	  HMAC-SHA1
+	* process.c (rb_execarg_parent_start1): Handle EINTR.
 
-Thu Oct 20 11:42:23 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Apr 10 17:27:58 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* util.c (mmprepare): fix for fragmental size.
+	* vm.c (vm_exec): check other events when RETURN is thrown.
+	  [Bug #10724]
 
-	* util.c (mmswap_, mmrot3_): portability improvement.
+	* test/ruby/test_settracefunc.rb: add a test.
 
-Thu Oct 20 05:58:02 2011  Eric Hodel  <drbrain@segment7.net>
+Fri Apr 10 11:44:09 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/openssl/ossl_ns_spki.c (Init_ossl_ns_spki):  Stub documentation
-	  for Netscape SPKI.
+	* ext/date/extconf.rb: check warnings.
 
-Thu Oct 20 05:13:39 2011  Ryan Davis  <ryand-ruby@zenspider.com>
+	* lib/mkmf.rb (try_cflags): pass options to try_compile.
 
-	* lib/minitest/*: Imported minitest 2.6.2 (r6712)
-	* test/minitest/*: ditto
+	* win32/Makefile.sub (WERRORFLAG): make unknown command line
+	  options an error.
 
-Thu Oct 20 06:55:32 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+Fri Apr 10 08:00:17 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* lib/openssl/buffering.rb: Force multi-byte strings to be treated as
-	  binary data.
-	* test/openssl/test_ssl.rb: Add test for it.
+	* test/ruby/test_process.rb: unfortunately, windows is not POSIX...
+	  cygwin has mkfifo command, but it does not affect system-wide.
 
-	Thanks to Niklas Baumstark for reporting the issue!
+Fri Apr 10 02:18:53 2015  Tanaka Akira  <akr@fsij.org>
 
-	[Ruby 1.9 - Bug #5233] [ruby-core:39120]
+	* test/ruby/test_process.rb: Use mkfifo command instead of mknod
+	  command to create a named pipe.  mkfifo command is defined by POSIX.
 
-Wed Oct 19 17:06:54 2011  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Fri Apr 10 01:29:05 2015  Tanaka Akira  <akr@fsij.org>
 
-	* version.h (RUBY_VERSION): finally declare start of 2.0 work!
+	* process.c: Release GVL when opening a file in spawn() to avoid whole
+	  process blocking when opening a named pipe.
+	  (open_func): New function.
+	  (rb_execarg_parent_start1): Extracted from rb_execarg_parent_start and
+	  use rb_thread_call_without_gvl2 to release GVL when opening a file.
+	  (rb_execarg_parent_start): Invoke rb_execarg_parent_start1 via
+	  rb_protect and invoke rb_execarg_parent_end when error.
 
-Wed Oct 19 11:48:44 2011  Eric Hodel  <drbrain@segment7.net>
+Thu Apr  9 22:19:19 2015  Tanaka Akira  <akr@fsij.org>
 
-	* error.c (Init_Exception):  Document $! and $@.  Provide
-	  recommendations for creating exceptions for a library.
+	* process.c (redirect_open): Removed.
 
-Wed Oct 19 11:25:46 2011  Eric Hodel  <drbrain@segment7.net>
+Thu Apr  9 21:38:20 2015  Tanaka Akira  <akr@fsij.org>
 
-	* error.c (Init_Exception):  Add hierarchy of Exception subclasses.
-	  Based on patch by Sylvain Daubert.  [Ruby 1.9 - Bug #5438]
+	* internal.h (rb_execarg_parent_end): Declared.
 
-Wed Oct 19 11:04:47 2011  Eric Hodel  <drbrain@segment7.net>
+	* process.c: "spawn" opens files in the parent process.
+	  (check_exec_redirect): Add an placeholder for fd in parameters
+	  for fd_open.
+	  (check_exec_fds_1): Delete fd_open condition.
+	  (check_exec_fds): Don't call check_exec_fds_1 with fd_open.
+	  (rb_execarg_parent_start): Open files specified as "spawn" options
+	  and add "dup2" options.
+	  (rb_execarg_parent_end): New function to close opened fds.
+	  (run_exec_open): Removed.
+	  (rb_execarg_run_options): Don't call run_exec_open.
+	  (rb_spawn_internal): Call rb_execarg_parent_end.
 
-	* enum.c: Reformat block args to a single standard, { |args| ... }.
-	  Patch by b t.  [Ruby 1.9 - Bug #5393]
+	* io.c (pipe_open): Call rb_execarg_parent_end.
 
-Wed Oct 19 12:11:26 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* ext/pty/pty.c (establishShell): Call rb_execarg_parent_end.
 
-	* ext/openssl/ossl_ssl.c: Remove set, but unused variables.
-	  ext/openssl/ossl_pkey.c: ditto
+Thu Apr  9 20:52:31 2015  Tanaka Akira  <akr@fsij.org>
 
-	* ext/openssl/ossl_pkey_dh.c: Make functions passed to
-	  rb_thread_blocking_region return VALUE instead of void.
-	  ext/openssl/ossl_pkey_dsa.c: ditto
-	  ext/openssl/ossl_pkey_rsa.c: ditto
+	* internal.h (rb_execarg_parent_start): Renamed from rb_execarg_fixup.
 
-Tue Oct 18 23:28:53 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* process.c: Follows the above change.
 
-	* hash.c (identhash): share with type_numhash.
+	* io.c: Ditto.
 
-	* st.c (st_hashtype_num): rename from type_numhash.
+	* ext/pty/pty.c: Ditto.
 
-Tue Oct 18 23:07:30 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Apr  9 20:35:12 2015  Tanaka Akira  <akr@fsij.org>
 
-	* vm_core.h (ruby_current_thread): probeprofiler has been removed
-	  long ago.
+	* process.c (fd_clear_cloexec): Extracted from run_exec_dup2.
 
-Tue Oct 18 23:05:49 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Apr  9 09:26:47 2015  Eric Wong  <e@80x24.org>
 
-	* ext/ripper/eventids2.c (ripper_init_eventids2): separate
-	  initializations of IDs and objects.
+	* ccan/list/list.h: sync with ccan upstream
+	  [ccan commit c2fbfe5282ba264f3485586e7efa8a5967f2d386]
 
-	* ext/ripper/tools/generate.rb (generate_eventids1): ditto.
+Thu Apr  9 08:24:03 2015  Masahiro Tomita  <tommy@tmtm.org>
 
-	* parse.y (Init_ripper, InitVM_ripper): fix inversed roles.
+	* ext/socket/raddrinfo.c (addrinfo_mload): fix memory leak of
+	  addrinfo.  [ruby-dev:48923] [Bug #11051]
 
-Sun Oct 16 19:46:16 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Apr  8 17:45:02 2015  Shannon Skipper  <shannonskipper@gmail.com>
 
-	* ext/bigdecimal/bigdecimal.gemspec (files): fixed typo, and
-	  removed nonexistent file.
+	* version.c (Init_version): the version of the engine or
+	  interpreter.  [Fix GH-858]
 
-	* ext/bigdecimal/bigdecimal.gemspec (homepage): added.
+Wed Apr  8 16:15:30 2015  Kenta Murata  <mrkn@cookpad.com>
 
-	* ext/io/console/io-console.gemspec (homepage): ditto.
+	* bigdecimal: conform to ruby's license.  [ruby-core:68466] [Bug #10952]
 
-Fri Oct 14 12:13:57 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Apr  8 14:57:06 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/pty/pty.c (pty_check): should return nil until the child
-	  terminates or stops.  [ruby-dev:44600] [Bug #2642]
+	* win32/win32.c (rb_w32_wreadlink): should treat junctions like as
+	  symlinks.
 
-Fri Oct 14 11:19:37 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Apr  8 14:03:47 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* include/ruby/intern.h (rb_ary_rotate): export.
+	* test/ruby/test_symbol.rb: fix syntax error.
 
-Fri Oct 14 05:58:05 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Apr  8 13:01:06 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* atomic.h (ATOMIC_INC, ATOMIC_DEC): return old values.
-	  [ruby-dev:44596] [Bug #5439]
+	* hash.c (rb_any_hash): Symbols are compared by the identities
+	  always.  [ruby-core:68767] [Bug #11035]
 
-	* signal.c (ruby_atomic_exchange): no needs to define on the
-	  platforms where atomic.h is available.
+Tue Apr  7 10:22:51 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Thu Oct 13 19:29:40 2011  Naohisa Goto  <ngotogenome@gmail.com>
+	* internal.h: fix typo. Patch by @sferik [fix GH-865]
 
-	* atomic.h (ATOMIC_*): use atomic_ops(3C) when SunStudio on Solaris.
-	  [ruby-dev:44596] [Bug #5439]
+Mon Apr  6 22:52:35 2015  Tanaka Akira  <akr@fsij.org>
 
-Thu Oct 13 18:13:04 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* enum.c: Enumerable#chunk and Enumerable#slice_before no longer takes
+	  the initial_state argument.  [Feature #10958]
 
-	* atomic.h(ATOMIC_SET): add cast to void to prevent misuse.
-	  [ruby-dev:44596] [Bug #5439]
+Mon Apr  6 16:09:58 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Oct 13 18:04:27 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_args.c: protect value stack from calling other methods
+	  during complex parameter setting process (splat, kw, and so on).
+	  [Bug #11027]
 
-	* gc.c (rb_gc_finalize_deferred, rb_objspace_call_finalizer):
-	  should use ATOMIC_EXCHANGE() to check the previous value.
-	  [ruby-dev:44596] [Bug #5439]
+	* vm_core.h: remove rb_thread_t::mark_stack_len.
+	  With this modification, we don't need to use th->mark_stack_len.
 
-Wed Oct 12 23:39:58 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+	* test/ruby/test_keyword.rb: add a test.
 
-	* test/openssl/test_ssl.rb: Move duplicated tests for SSL::Session to
-	  test_ssl_session.rb
+	* cont.c (cont_capture): catch up this fix.
 
-Tue Oct 11 08:49:40 2011  Eric Hodel  <drbrain@segment7.net>
+	* vm.c (rb_thread_mark): ditto.
 
-	* array.c (rb_ary_initialize):  Improve explanation of Array.new
-	  parameters.  Patch by Alvaro Pereyra Rabanal.  [Ruby 1.9 - Bug #5425]
-	* array.c (rb_ary_s_try_convert):  Fix typo (try => tries)
-	* array.c (rb_ary_rindex):  Add spacing for block.
-	* array.c (rb_ary_uniq_bang):  Describe block
-	* array.c (rb_ary_uniq):  ditto
+Mon Apr  6 11:26:42 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Tue Oct 11 07:55:38 2011  Eric Hodel  <drbrain@segment7.net>
+	* tool/downloader.rb (http_options): prevent content auto decoding
+	  because this is a downloader.
 
-	* array.c:  Add a description to Array, minor cleanups.  Patch by
-	  Andrea Singh.  [Ruby 1.9 - Bug #5412]
+Sun Apr  5 09:55:18 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Tue Oct 11 06:09:52 2011  Eric Hodel  <drbrain@segment7.net>
+	* doc/contributing.rdoc: update Maintainers list.
 
-	* lib/pp.rb:  Move PP documentation to top of class PP.  Patch by
-	  Sylvain Daubert.  [Ruby 1.9 - Bug #5430]
+Sun Apr  5 09:11:00 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Tue Oct 11 06:06:29 2011  Eric Hodel  <drbrain@segment7.net>
+	* tool/rbinstall.rb: fix bin script permission of bundled gems.
 
-	* ext/coverage/coverage.c (Init_coverage):  Change list format and
-	  describe Coverage.result output.  Patch by Sylvain Daubert.
-	  [Ruby 1.9 - Bug #5428]
+Sun Apr  5 08:46:08 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Tue Oct 11 05:53:23 2011  Eric Hodel  <drbrain@segment7.net>
+	* tool/rbinstall.rb: support --program-suffix option.
 
-	* object.c (Init_Object):  Add reference to BasicObject, brief
-	  explanation of constant lookup.  Based on patch by Alvaro Pereyra
-	  Rabanal.
-	  [Ruby 1.9 - Bug #5426]
+Sat Apr  4 21:31:18 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Sun Oct  9 11:06:52 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* lib/rake/*: Gemify rake [fix GH-862][Feature #11025]
+	* test/rake/*: ditto.
+	* tool/rbinstall.rb: ditto.
 
-	* test/psych/test_yamldbm.rb: don't run test if the system
-	  don't support yaml/dbm.
+Sat Apr  4 11:30:24 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/syck/test_yamldbm.rb: ditto.
+	* string.c (rb_str_setbyte): check the argument first not to
+	  discard shared string and code range unnecessarily until
+	  actually changing the contents.  pointed out by headius.
 
-Sat Oct  8 08:54:56 2011  Eric Hodel  <drbrain@segment7.net>
+Sat Apr  4 08:16:43 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* enum.c (group_by):  Improve group_by description.  Patch by b t.
-	  [#5411]
+	* lib/net/http.rb (edit_path): use path which is absolute ftp url
+	  on using ftp_proxy.
 
-Sat Oct  8 03:17:51 2011  Eric Hodel  <drbrain@segment7.net>
+Fri Apr  3 11:43:17 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/shell.rb:  Document some methods of Shell.  Patch by Carol
-	  Nichols.  [Ruby 1.9 - Bug #5417]
+	* vm_eval.c (vm_call0_cfunc): update invoker arguments.
 
-Fri Oct  7 17:54:28 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_insnhelper.c (vm_call_cfunc_latter): ditto.
 
-	* lib/test/unit/assertions.rb (assert_send, assert_not_send):
-	  parenthesize non-empty arguments.
+	* vm_insnhelper.c (rb_vm_call_cfunc_push_frame): ditto, and prefix
+	  with rb_.
 
-Fri Oct  7 06:35:50 2011  Eric Hodel  <drbrain@segment7.net>
+Thu Apr  2 16:26:59 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* array.c:  Use + for arguments described in documentation to allow
-	  rdoc -C2 to work better.  Remove <code> from method references to
-	  allow cross-references in HTML documentation.
+	* common.mk, tool/mkconfig.rb: check the running ruby version in
+	  rbconfig.rb with the program version, as RUBY_VERSION has never
+	  been affected by --with-ruby-version option.
+	  [ruby-core:68639] [Bug #11002]
 
-Thu Oct  6 18:46:23 2011  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	* configure.in (LIBRUBY_DLDFLAGS): compatibility_version must be
+	  valid version numbers, not an arbitrary string.
 
-	* vm_eval.c (make_no_method_exception): fix typo.
+Wed Apr  1 11:09:15 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_insnhelper.c, vm_insnhelper.h: ditto.
+	* dir.c (push_glob): remove indirect links of arguments for
+	  trampoline.
 
-Thu Oct  6 16:29:30 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Apr  1 09:59:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_eval.c (make_no_method_execption): extract from
-	  raise_method_missing().
+	* lib/fileutils.rb (FileUtils#mv): show the exact target path in
+	  the error message instead of the destination parent directory
+	  name.  patched by Joao Britto <jabcalves AT gmail.com> at
+	  [ruby-core:68706].  [Bug #11021]
 
-	* vm_eval.c (send_internal): remove inadvertent symbol creation
-	  from public_send.  based on a patch by Jeremy Evans <code AT
-	  jeremyevans.net> in [ruby-core:38576]. [Feature #5112]
+Tue Mar 31 15:25:07 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* vm_insnhelper.c (vm_call_method): remove inadvertent symbol
-	  creation from send and __send__, too.
+	* doc/ChangeLog-0.06_to_0.52: added archived Changelog.
+	  [ruby-list:50105]
+	* doc/ChangeLog-0.50_to_0.60: ditto.
+	* doc/ChangeLog-0.60_to_1.1: ditto.
 
-Thu Oct  6 14:59:11 2011  Eric Hodel  <drbrain@segment7.net>
+Mon Mar 30 22:02:55 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-	* lib/time.rb:  Clean up Time documentation.  Patch by Jake Goulding.
-	  [Ruby 1.9 - Bug #5416]
+	* README.EXT.ja: add redirect [ruby-core:68631]
 
-Thu Oct  6 10:00:54 2011  Eric Hodel  <drbrain@segment7.net>
+Mon Mar 30 14:42:41 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* enum.c (group_by):  Improve documentation based on patch by b t.
+	* win32/win32.c (fileattr_to_unixmode, winnt_lstat): deal with
+	  symbolic link than directory, and set executable bits.
 
-Thu Oct  6 09:56:30 2011  Eric Hodel  <drbrain@segment7.net>
+Mon Mar 30 11:27:54 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* enum.c:  Clean up wording in Enumerable documentation.  Patch by b t.
-	  [Ruby 1.9 - Bug #5411]
+	* io.c (copy_stream_body): use the arguments without conversion if
+	  having read, readpartial, and write methods, than conversion by
+	  to_path method.  [ruby-core:68676] [Bug #11015]
 
-Thu Oct  6 09:17:18 2011  Eric Hodel  <drbrain@segment7.net>
+Sun Mar 29 21:08:37 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* time.c (Init_Time):  Remove editorial comments from Time
-	  documentation, fix link.
+	* gc.c (objspace_allrefs_destruct_i): fix a typo.
+	  [Bug #11013]
 
-Thu Oct  6 09:14:20 2011  Eric Hodel  <drbrain@segment7.net>
+Sun Mar 29 11:51:32 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* time.c (Init_Time):  Improve Time documentation.  Patch by Shane
-	  Emmons.  [Ruby 1.9 - Bug #5404]
-	* lib/time.rb:  Improve time.rb documentation including Time.strptime.
-	  Patch by Shane Emmons.  [Ruby 1.9 - Bug #5402]
+	* proc.c (proc_binding): replicate env from method object, and
+	  allocate the local variable area for the iseq local table.
+	  [ruby-core:68673] [Bug #11012]
 
-Thu Oct  6 08:54:05 2011  Eric Hodel  <drbrain@segment7.net>
+Sat Mar 28 09:19:41 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* random.c:  Improve documentation of Random.  Patch by Gregory
-	  Parkhurst.  [Ruby 1.9 - Bug #5410]
+	* ext/date/extconf.rb: try_cflags("-std=iso9899:1999") [Bug #10906]
+	  ruby itself (including numeric.c) is built with strict compile
+	  options including -std=iso9899:1999, but ext/date is not.
+	  By the way -std=iso9899:1999 is not only a warning option but also
+	  changes behavior like MACRO definitions for example INFINITY.
+	  gcc on Solaris affect this.
 
-Thu Oct  6 01:44:51 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+Fri Mar 27 16:34:16 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* cont.c (cont_mark): mark original Thread object from saved_thread.
-	  [ruby-dev:44571] [Bug #5386]
+	* common.mk: revert using BOOTSTRAPRUBY for enc.mk, as
+	  enc/depend uses CONFIG.  [ruby-core:68647] [Bug #11004]
 
-Wed Oct  5 16:33:04 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Mar 26 10:05:13 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* vm_insnhelper.c (vm_call_cfunc): remove useless hack.
+	* test/test_observer.rb: add tests for Observable module.
+	  [fix GH-859] Patch by @brightbits
 
-Wed Oct  5 05:56:39 2011  Eric Hodel  <drbrain@segment7.net>
+Thu Mar 26 06:35:10 2015  Eric Wong  <e@80x24.org>
 
-	* hash.c (Init_Hash):  Improve Hash documentation.  Patch by Alvaro
-	  Pereyra Rabanal.  [Ruby 1.9 - Bug #5405]
+	* README.EXT: add redirect [ruby-core:68631]
 
-Wed Oct  5 05:47:59 2011  Eric Hodel  <drbrain@segment7.net>
+Wed Mar 25 16:46:49 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* random.c (Init_Random):  Add a top-level comment for Random.  Patch
-	  by Brett Bim.  [Ruby 1.9 - Bug #5403]
+	* ext/socket/extconf.rb: Solaris 11 has struct tcp_info.tcpi_ca_state,
+	  but it is a dummy.
 
-Wed Oct  5 02:50:27 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+	* ext/socket/option.c: Solaris 11 doesn't have u_intN_t.
 
-	* ext/psych/lib/psych/syntax_error.rb: Add file, line, offset, and
-	  message attributes during parse failure.
-	* ext/psych/parser.c: Update parser to raise exception with correct
-	  values.
-	* test/psych/test_exception.rb: corresponding tests.
+	* ext/socket/option.c: Solaris 11 needs inspect_tcpi_msec.
 
-Wed Oct  5 01:52:16 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+	* ext/socket/raddrinfo.c: Solaris 11 has AF_PACKET but doesn't have
+	  related macros.
 
-	* ext/psych/parser.c (parse): Use context_mark for indicating error
-	  line and column.
+Wed Mar 25 17:03:08 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Oct  5 01:22:08 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+	* ext/-test-/file/fs.c (get_fsname): try magic number only if
+	  f_type is included.  [ruby-dev:48913] [Bug #11000]
 
-	* ext/psych/lib/psych/scalar_scanner.rb: use normal begin / rescue
-	  since postfix rescue cannot receive the exception class. Thanks
-	  nagachika!
+Wed Mar 25 11:20:40 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Oct  4 21:10:08 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* benchmark/bm_hash_aref_flo.rb: make more realistic data.
+	  [ruby-core:68632] [[Bug #10999]
 
-	* class.c (class_alloc): allocate extra memory after containing
-	  object setup to get rid of rare-but-potential memory leak.
+Wed Mar 25 10:39:06 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* gc.c (gc_mark_children): skip marking extended members if ptr is
-	  NULL.
+	* .document: removed needless entries.
 
-Tue Oct  4 16:17:50 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Wed Mar 25 08:07:28 2015  Eric Wong  <e@80x24.org>
 
-	* lib/time.rb (Time.strptime): use Time.at if d[:seconds] is set.
-	  Reported by Christopher Eberz. [ruby-core:39903] Bug #5399
+	* doc/extension.rdoc: fix spelling of filename
+	* doc/extension.ja.rdoc: ditto.
 
-Tue Oct  4 11:44:10 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Tue Mar 25 06:55:43 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
 
-	* gc.c (rb_gc_set_params): ruby_verbose can be Qnil, so use RTEST.
+	* complex.c (k_inexact_p, k_exact_zero_p): use k_exact_zero_p macro
+	  to remove k_inexact_p macro.
 
-Tue Oct  4 08:33:41 2011  Eric Hodel  <drbrain@segment7.net>
+	* complex.c (k_exact_one_p): remove unused macro k_exact_one_p.
 
-	* ext/etc/etc.c:  Document Etc, Etc.sysconfdir, Etc.systmpdir.  Patch
-	  by mathew murphy.  [Ruby 1.9 - Bug #5396]
+Tue Mar 24 22:23:33 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Tue Oct  4 08:21:51 2011  Eric Hodel  <drbrain@segment7.net>
+	* doc/extension.rdoc: move from toplevel document and added extname.
+	* doc/extension.ja.rdoc: ditto.
 
-	* lib/shellwords.rb:  Update toplevel comment with an example.  Patch
-	  by Samnang Chhun.  [Ruby 1.9 - Bug #5388]
+Tue Mar 24 22:06:58 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Tue Oct  4 08:15:50 2011  Eric Hodel  <drbrain@segment7.net>
+	* doc/standard_library.rdoc: strip.
 
-	* proc.c (proc_call):  Update documentation to match argument handling
-	  of proc/Proc.new/lambda/->()
+Tue Mar 24 22:06:27 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Tue Oct  4 07:59:16 2011  Eric Hodel  <drbrain@segment7.net>
+	* doc/standard_library.rdoc: move Thread to Extensions.
 
-	* proc.c (proc_call):  Fix documentation of Proc#call vs Proc#===.
-	  [Ruby 1.9 - Bug #5349]
+Tue Mar 24 21:59:10 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Tue Oct  4 07:43:18 2011  Eric Hodel  <drbrain@segment7.net>
+	* doc/contributing.rdoc: update Maintainers list.
 
-	* array.c (rb_ary_initialize):  Make Array.new description match
-	  call-seq.  Patch by Henry Maddocks.  [Ruby 1.9 - Bug #5344]
+Tue Mar 24 19:10:24 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Oct  4 07:35:23 2011  Eric Hodel  <drbrain@segment7.net>
+	* gc.c (gc_writebarrier_generational): fix messages for rb_bug().
+	  Remove `rb_' prefix.
 
-	* array.c (rb_ary_initialize):  Add output for examples.  Patch by
-	  Jonathan Mukai.  [Ruby 1.9 - Bug #5216]
+	* gc.c (gc_writebarrier_incremental): ditto.
 
-Tue Oct  4 07:30:50 2011  Eric Hodel  <drbrain@segment7.net>
+Tue Mar 24 17:34:01 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* array.c (rb_ary_s_create):  Add example results for Array::[].  Patch
-	  by Jonathan Mukai.  [Ruby 1.9 - Bug #5215]
+	* README.ja.md: should be chunibyo.
 
-Tue Oct  4 07:15:17 2011  Eric Hodel  <drbrain@segment7.net>
+Tue Mar 24 17:30:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rubygems:  Update to RubyGems 1.8.11.  Move Deprecate into the
-	  Gem namespace.
+	* ext/-test-/file/fs.c (get_fsname): return filesystem name by
+	  statfs/statvfs.  [ruby-core:68624] [Bug #10998]
 
-Tue Oct  4 06:43:47 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+Tue Mar 24 16:46:02 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/psych/lib/psych.rb: update psych version.
-	* ext/psych/psych.gemspec: generate new gemspec for new version.
+	* tool/redmine-backporter.rb: now doesn't required spaces just after
+	  `!`.
 
-Tue Oct  4 06:29:55 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+Mon Mar 23 23:18:27 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/psych/lib/psych.rb: calling `yaml` rather than `to_yaml`.
-	* ext/psych/lib/psych/nodes/node.rb: Rename `to_yaml` to just `yaml`
-	  in order to avoid YAML::ENGINE switching from replacing this method.
-	* test/psych/helper.rb: fix tests for method name change.
-	* test/psych/test_document.rb: ditto
-	* test/psych/visitors/test_emitter.rb: ditto
+	* dir.c (dir_close): don't raise on double close for consistent to
+	  IO#close.  [Feature #10950]
 
-Tue Oct  4 06:20:19 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+Mon Mar 23 21:22:07 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/psych/lib/psych/scalar_scanner.rb: Match values against the
-	  floating point spec defined in YAML to avoid erroneous parses.
-	* test/psych/test_numeric.rb: corresponding test.
+	* win32/file.c (rb_readlink): move from file.c for better buffer
+	  allocation and the result encoding.
 
-Tue Oct  4 05:59:24 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+	* win32/win32.c (wreadlink, rb_w32_ureadlink): implement readlink().
 
-	* ext/psych/lib/psych/visitors/to_ruby.rb: ToRuby visitor can be
-	  constructed with a ScalarScanner.
-	* ext/psych/lib/psych/visitors/yaml_tree.rb: ScalarScanner can be
-	  passed to the YAMLTree visitor.
+Mon Mar 23 14:40:45 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Oct  4 05:47:23 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+	* win32/win32.c (winnt_stat): stat with following symbolic links.
 
-	* ext/psych/lib/psych/visitors/to_ruby.rb: Define Regexp::NOENCODING
-	  for 1.9.2 backwards compatibility.
-	* ext/psych/lib/psych/visitors/yaml_tree.rb: Fix Date string
-	  generation for 1.9.2 backwards compatibility.
+	* win32/win32.c (winnt_lstat): rename old winnt_stat, which does
+	  not follow symbolic links.
 
-Mon Oct  3 23:56:39 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+Mon Mar 23 01:44:35 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* gc.c (rb_gc_set_params): output GC parameter change messages only
-	  if -w/-v options are specified. these messages are output to stderr,
-	  not to stdout. [ruby-core:39795] [Bug #5380]
+	* marshal.c (r_symreal): register symbol names as strings first so
+	  that r_symlink always returns valid names.
+	  [ruby-core:68587] [Bug #10991]
 
-	* test/ruby/test_gc.rb (test_gc_parameter): add test for it.
+	* marshal.c (r_ivar, r_object0): now need to intern symbol names.
 
-Sun Oct  2 20:05:32 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* marshal.c (r_object0): compare with symbol names.
 
-	* vm.c (rb_thread_mark), cont.c (cont_mark): revert r33369 and r33371
-	  that may cause SEGV in certain environments.
+Sun Mar 22 22:07:40 2015  Kouhei Sutou  <kou@cozmixng.org>
 
-Sun Oct  2 12:14:06 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* doc/etc.rd.ja: Fix wrong coding for Emacs.
 
-	* test/psych/test_yamldbm.rb: add test case.
-	* test/syck/test_yamldbm.rb: ditto.
+Sun Mar 22 09:53:15 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Oct  2 11:28:09 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+	* tool/make-snapshot (package): add default CONFIGURE name to
+	  follow r50039.
 
-	* lib/yaml/store.rb: make initialize method signature match the
-	  superclass signature.
+	* tool/make-snapshot (package): substitute configuration variables
+	  in Makefile.in instead of passing by the command line, and make
+	  temporary Makefile instead of a pipe.
 
-Sun Oct  2 10:44:01 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+Sun Mar 22 08:09:47 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* io.c: fix documentation of ARGF.lineno=.
+	* common.mk (ext/ripper/ripper.c, ext/rbconfig/sizeof/sizes.c):
+	  strip autogenerated dependencies which have invalid syntax in
+	  other than nmake.
 
-Sat Oct  1 20:03:19 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Mar 21 15:01:26 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/mkmf.rb (have_framework): try as Objective-C.
-	  https://twitter.com/nagachika/status/120294447660539904
+	* ext/io/console/console.c (console_set_winsize): use handle for
+	  writing.  GetConsoleScreenBufferInfo seems failing on a handle
+	  for reading.
 
-Sun Oct  2 08:43:25 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* io.c: [DOC] update the example of IO#winsize to use $stdout
+	  instead of $stdin, which does not work on Windows.  a patch by
+	  Jan Lelis <mail AT janlelis.de> at [ruby-core:68574].
+	  [Bug #10986]
 
-	* vm.c (rb_thread_mark), cont.c (cont_mark): self pointer should not
-	  be marked by itself. Patch by Koichi Sasada.
-	  [ruby-dev:44567] [Bug #5386]
+Fri Mar 20 18:41:03 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Oct  2 00:42:14 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* proc.c (respond_to_missing_p): check if the receiver responds to
+	  the given method by respond_to_missing?.
 
-	* vm.c (rb_thread_mark): rb_thread_t needs self to be marked.
-	  [ruby-dev:44566] [Bug #5386]
+	* proc.c (mnew_missing): create Method object for method_missing.
+	  [ruby-core:68564] [Bug #10985]
 
-Sat Oct  1 09:48:53 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+Fri Mar 20 17:43:18 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* gc.c (add_heap_slots, init_heap): reset heaps_inc zero when
-	  heap slots are expanded by environment variable RUBY_HEAP_MIN_SLOTS.
-	  [ruby-core:39777] [Bug #5380]
+	* .travis.yml: enabled email notification.
 
-	* test/ruby/test_gc.rb (test_gc_parameter): add test for it.
+Fri Mar 20 17:39:52 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* test/ruby/envutil.rb (assert_normal_exit): add :child_env option to
-	  enable pass environment variables to child process.
+	* .travis.yml: removed Ruby 1.9.3 build on Travis CI
 
-Thu Sep 29 13:17:51 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Mar 20 12:38:36 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* array.c (ary_join_1): should not copy the encoding of non-string
-	  element after string element.  [ruby-core:39776] [Bug #5379]
+	* gc.c (obj_info): obj_info() can receive internal objects.
 
-Thu Sep 29 11:53:56 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gc.c (check_rvalue_consistency): obj_info() returns const char *.
 
-	* gc.c (slot_sweep, rb_gc_finalize_deferred)
-	  (rb_objspace_call_finalizer, rb_gc): run finalizers
-	  sequentially.  [ruby-dev:44562]
+Fri Mar 20 12:14:37 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Sep 29 20:37:38 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gc.c (obj_info): show class name and T_DATA type_name.
 
-	* ext/gdbm/gdbm.c (rb_gdbm_fatal): adjust argument type.
+Thu Mar 19 22:12:46 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Sep 29 20:10:42 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gc.c (rb_copy_wb_protected_attribute): `dest' can be WB unprotected.
 
-	* gc.c (is_id_value, is_live_object): extract from id2ref().
+Thu Mar 19 21:25:25 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* gc.c (run_finalizer): use object instead of object id.
+	* gc.c (rb_copy_wb_protected_attribute): demote `dest' object.
 
-Thu Sep 29 20:07:36 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Mar 19 16:18:00 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* use RB_TYPE_P which is optimized for constant types, instead of
-	  comparison with TYPE.
+	* gc.c, internal.h: export rb_gc_verify_internal_consistency().
 
-Wed Sep 28 09:20:37 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Mar 19 16:15:24 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* configure.in (pthread_np.h): needs pthread.h to be included
-	  previously on OpenBSD.  a patch by George Koehler <xkernigh AT
-	  netscape.net> at [ruby-core:39752].  [Bug #5376]
+	* gc.c (obj_info): show allocation site if GC_DEBUG is not 0.
 
-Wed Sep 28 04:41:35 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+Thu Mar 19 16:12:01 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* test/psych/test_yamlstore.rb: use tmpdir for tmpfile.
-	* test/syck/test_yamlstore.rb: ditto.
+	* gc.c (newobj_of): fix RGENGC_OLD_NEWOBJ_CHECK logics.
+	  * skip on incremental marking because not sure what happen :p
+	  * rb_gc_writebarrier_remember() is enough to mark children.
 
-Wed Sep 28 04:10:46 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+Thu Mar 19 16:08:42 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/bigdecimal/README: update report to.
+	* gc.c (rb_copy_wb_protected_attribute): need demote for old objects.
 
-Tue Sep 28 04:05:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+Thu Mar 19 10:31:00 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/bigdecimal/bigdecimal_en.html: removed because this file isn't
-	  maintained now.
+	* random.c (fill_random_bytes): release the handle in the static
+	  variable, not a local variable.
 
-	* ext/bigdecimal/bigdecimal_ja.html: ditto.
+Thu Mar 19 06:30:35 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Sep 27 09:55:40 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* object.c (rb_obj_clone): do not touch age (FL_PROMOTED[01]) because
+	  rb_obj_alloc() can return old object in debug.
 
-	* thread_pthread.c: make native_fd_select().
-	* thread.c (do_select): remove #ifdef _WIN32. Instead, use
-	  native_fd_select() always.
+Thu Mar 19 06:29:28 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Sep 27 09:44:59 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* test/objspace/test_objspace.rb: flag name was changed
+	  (long_lived -> uncollectible).
 
-	* thread.c (do_select): remove cygwin specific hack. It's layer
-	  violation and too large hack.
-	* thread.c (cmp_tv, subtract_tv): removed.
+Thu Mar 19 05:30:13 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Sep 27 03:50:19 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* iseq.c (iseq_mark): skip some marking if iseq->orig is available.
 
-	* test/rexml/test_sax.rb: add require 'rexml/document'.
+	* iseq.c (rb_iseq_clone): need WB for iseq1->klass = iseq0->klass
+	  (done in MEMCPY).
 
-Tue Sep 27 03:32:27 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+Thu Mar 19 04:55:53 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* test/psych/test_yamldbm.rb: fix #setup and #teardown.
-	  [Bug #5370] [ruby-core:39730]
-	* test/syck/test_yamldbm.rb: ditto.
+	* internal.h (IMEMO_DEBUG): added.
 
-Mon Sep 26 11:27:38 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* internal.h: remove unused FL_IMEMO_MARK_V[0-3].
 
-	* lib/webrick/httputils.rb: Add MIME Type definition of .js and .svg.
-	  patched by Hal Brodigan. [ruby-core:39704] [Bug #5365]
+	* gc.c (rb_imemo_new_debug): added.
 
-Mon Sep 26 09:20:44 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* gc.c (obj_info): show imemo type name.
 
-	* configure.in: remove DJGPP support. It's not longer supported
-	  since ruby 1.9.0.
+Thu Mar 19 04:52:26 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Sep 26 09:07:46 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* gc.c (RGENGC_OLD_NEWOBJ_CHECK): add check mechanism.
 
-	* include/ruby/defines.h: remove NextStep, OpenStep, Rhapsody
-	  support. Last activity of their OSes are 7 years ago.
-	* configure.in: ditto.
-	* dir.c: ditto.
-	* ext/tk/extconf.rb: ditto.
+	  If RGENGC_OLD_NEWOBJ_CHECK > 0, then create old objects
+	  (not new objects) periodically.
 
-Mon Sep 26 09:02:49 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	  Create one old objects per RGENGC_OLD_NEWOBJ_CHECK objects are
+	  created.
 
-	* configure.in: remove a code for human68k. it's no longer
-	  supported since r19677.
+Thu Mar 19 04:46:36 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Sep 25 23:43:32 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* enum.c (enum_sort_by): add WBs.
 
-	* ext/openssl/ossl_asn1.c: fix int_ossl_asn1_decode0_cons when being
-	  fed arbitrary string values.
-	  Clearly distinguish between the cases "universal, infinite and
-	  not a SEQUENCE or SET" and "universal SEQUENCE or SET, possibly
-	  infinite". Raise error for universal tags that are not infinite.
-	* test/openssl/test_asn1.rb: add a test for this.
+Thu Mar 19 03:37:52 2015  Koichi Sasada  <ko1@atdot.net>
 
-	  Thanks to Hiroshi Yoshida for reporting this bug.
-	  [Bug #5363] [ruby-dev:44542]
+	* gc.c (check_rvalue_consistency): refactoring.
+	  * not inline on RGENGC_CHECK_MODE > 0.
+	  * check SPECIAL_CONST_P(obj) first.
+	  * add a check that remembered_bit is only TRUE when old (age == 3).
 
-Sun Sep 25 20:57:18 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* gc.c (RVALUE_DEMOTE): should clear RVALUE_REMEMBERED bit.
 
-	* test/syck/test/yamldbm.rb: add test for Syck::DBM.
-	* test/psych/test_yamldbm.rb: add test for Psych::DBM.
-	* test/psych/test_yamlstore.rb: add test for Psych::PStore.
+	  remembered_bit should be TRUE only for old (age == 3) objects.
 
-Sun Sep 25 20:54:10 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	  Actually there are no effect because demoted objects will be
+	  uncollectible WB unprotected objects (marked at the beginning of
+	  every minor GC).
 
-	* lib/yaml/dbm/dbm.rb: fix #update, add #key for using instead #index.
-	  [Bug #5305][ruby-dev:44485]
+Thu Mar 19 02:52:48 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Sep 25 16:54:33 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gc.c: rename terminologies.
+	  * long_lived -> uncollectible:
+	    because this bitmap does not mean "long lived objects in past",
+	    but means "prohibit collection these objects until next major GC".
 
-	* encoding.c (require_enc): reject only loading from untrusted
-	  load paths.  [ruby-dev:44541] [Bug #5279]
+	    Uncollectible objects consist of two types objects, one is old
+	    objects (WB protected objects which age == 3) and another is
+	    uncollectible WB unprotected objects which are referred from old
+	    objects
 
-	* transcode.c (load_transcoder_entry): ditto.
+	  * remembered_wb_unprotected_objects ->
+	    uncollectible_wb_unprotected_objects:
+	    because uncollectible objects does not mean remembered objects.
 
-Sun Sep 25 16:45:05 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Mar 18 17:21:12 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* configure.in: ignore all warnings from an arbitrary
-	  header in /usr/local/include.
+	* gc.c (gc_writebarrier_generational): add an alternative write
+	  barrier (WB) implementation.
+	  When finding reference from [Old obj] to [New obj] by WB, current
+	  implementation marks [Old obj] as remembered old objects and marks
+	  children of [Old obj] at the beginning of marking.
 
-Sun Sep 25 03:43:03 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	  Added (but disabled) code changes current behaviour. This fix promote
+	  [New obj] to old and marks as a remembered old object. We can assume
+	  "new objects referred from old objects are maybe long-lived old
+	  objects".
 
-	* enum.c (slice_before_i): use rb_attr_get to suppress wrong warning
-	  for internal instance variable slicebefore_initial_state.
+	  Disadvantage of added algorithm is we may promote unwilling
+	  short-lived objects. For example, consider many new objects push and
+	  pop to an old stack object. All of new objects (short-lived objects)
+	  promote to old objects unexpectedly.
 
-Fri Sep 23 14:20:14 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	  To compare these behaviour, I add this new code (but disabled it).
 
-	* ext/openssl/ossl_asn1.c: remove unused variable.
+Wed Mar 18 17:14:39 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Sep 23 13:46:59 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* gc.c (RVALUE_PROMOTE_RAW): rename to RVALUE_OLD_LONG_LIVED_SET()
+	  to make clear.
 
-	* test/openssl/test_ssl_session.rb: execute test_session_exts_read
-	  only for OpenSSL versions >= 0.9.8k. Thanks, Eric Wong, for
-	  reporting this.
-	  [Bug #4961] [ruby-core:37726]
+Wed Mar 18 17:10:01 2015  Koichi Sasada  <ko1@atdot.net>
 
-Fri Sep 23 11:59:08 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* gc.c (check_rvalue_consistency): do not need to check is_sweeping().
 
-	* test/openssl/test_ssl_session.rb: ensure server calls callbacks in
-	  test_ctx_server_session_cb. Thanks to Eric Wong for the patch.
-	  [Bug #5336] [ruby-core:39619]
+Wed Mar 18 14:13:22 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Sep 22 02:53:19 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* benchmark/bm_vm1_gc_wb_ary.rb: run GC to finish "marking" phase.
 
-	* vm_insnhelper.c (vm_call_cfunc): suppress a warning.  note that
-	  `volatile type *var' doesn't make var itself volatile.
+	* benchmark/bm_vm1_gc_wb_obj.rb: ditto.
 
-Thu Sep 22 01:52:48 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* benchmark/bm_vm1_gc_wb_ary_promoted.rb: add parameter
+	  full_mark: false to invoke only minor GC.
 
-	* thread_pthread.c (ubf_select): activate timer thread when interrupt
-	  blocking thread.
-	  A patch created by Koichi Sasada. [ruby-core:39634] [Bug #5343]
-	  to cover race condition, timer thread periodically send SIGVTARLM to
-	  threads in signal thread list. so you should activate timer thread
-	  when interrupt a thread.
+	* benchmark/bm_vm1_gc_wb_obj_promoted.rb: ditto.
 
-Wed Sep 21 16:55:26 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed Mar 18 12:07:36 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* test/io/wait/test_io_wait.rb (TestIOWait#setup): of course, the
-	  behavior of mingw is just same with mswin.
+	* string.c: add a comment about RSTRING_FSTR.
 
-Tue Sep 20 18:08:51 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Mar 18 12:01:53 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_insnhelper.c (vm_get_cvar_base): reduce duplicated checks and
-	  move a warning outside the loop.
+	* hash.c (rb_any_hash): use same hash values with Float#hash so
+	  that -0.0 and +0.0 will be identical.
+	  [ruby-core:68541] [Bug #10979]
 
-Mon Sep 19 18:55:51 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+Wed Mar 18 05:34:32 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/fileutils.rb (module FileUtils): improve performance of
-	  FileUtils.compare_stream. a patch by Masaki Matsushita.
-	  [Feature #5337] [ruby-core:39622]
+	* string.c: introduce STR_FAKESTR to show string is FAKESTR or not.
 
-Mon Sep 19 18:42:58 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* string.c (STR_SET_SHARED): ignore FAKESTR because only Ruby objects
+	  can use write barrier.
 
-	* test/-ext-/old_thread_select/test_old_thread_select.rb:
-	  select() with timeout may return early in old Linux kernels
-	  with 250 Hz tickrate and no dynticks, so skip everything older
-	  than 2.6.32 (which has long term support).
-	  And, Make the timing assertions consistently use assert_operator with
-	  timing difference in error message
-	  Patch by Eric Wong. [Bug #5335] [ruby-core:39618]
+Tue Mar 17 18:59:16 2015  Koichi Sasada  <ko1@atdot.net>
 
-Mon Sep 19 09:28:06 2011  Eric Hodel  <drbrain@segment7.net>
+	* include/ruby/ruby.h: use rb_gc_writebrrier() simply.
+	  For incremental GC, we need to get a pointer to the objspace.
+	  We can share this pointer for the following WB process.
+	  And considering icache hit ratio, process in the GC.
 
-	* test/openssl/test_ssl.rb (class OpenSSL):  Test
-	  OpenSSL::SSL::SSLSocket#session and #session=.
+	* gc.c (rb_gc_writebarrier): added.
 
-Mon Sep 19 07:54:17 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gc.c (gc_writebarrier_generational, gc_writebarrier_incremental):
+	  make them NOINLINE because inlining them into rb_gc_writebarrier()
+	  makes a prologue code of rb_gc_writebarrier() longer (storing callee
+	  save registers).
 
-	* object.c (rb_obj_clone): singleton class should be attached
-	  singleton object to.  a patch by Satoshi Shiba <shiba AT rvm.jp>
-	  at [ruby-dev:44460].  [Bug #5274]
+	  This patch improve the performance of WB on micro-benchmarks.
 
-Sat Sep 17 23:34:10 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  name                   ruby 2.1   trunk   modified
+	  vm1_gc_wb_ary*            0.511   0.632      0.532
+	  vm1_gc_wb_ary_promoted*   0.578   0.701      0.674
+	  vm1_gc_wb_obj*            0.419   0.575      0.492
+	  vm1_gc_wb_obj_promoted*   0.537   0.664      0.618
+	                                                 (sec)
 
-	* parse.y (parser_data_type): inherit the core type in ripper so
-	  that checks in core would work.  [ruby-core:39591] [Bug #5331]
+Tue Mar 17 18:51:43 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Sep 17 12:44:04 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* benchmark/bm_vm1_gc_wb_ary(_promoted).rb: separate fastpath and
+	  slowpath for WB.
 
-	* lib/find.rb (Find.find): add documentation that Find.find
-	  without block returns an enumerator.
+	  Before this change bm_vm1_gc_wb_ary.rb tried to check the performance
+	  for WB slowpath (making a reference from oldobj to newobj). However,
+	  from Ruby 2.2, 3 GCs are needed to promote new objects because
+	  only 3 age objects are promoted objects.
 
-Thu Sep 15 11:39:43 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  To compare fastpath and slowpath, introduce new "promoted" version
+	  benchmark.
 
-	* gc.c (mark_entry, mark_key, mark_keyvalue): adjust callback
-	  argument types.
+	  bm_vm1_gc_wb_ary.rb is for fastpath and
+	  bm_vm1_gc_wb_ary_promoted.rb is for slowpath.
 
-Thu Sep 15 01:44:10 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* benchmark/bm_vm1_gc_wb_obj(_promoted).rb: ditto.
 
-	* ext/tk/*: Change encoding from EUC-JP to UTF-8
+Tue Mar 17 17:23:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Sep 14 11:43:37 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* dir.c (glob_helper): distinguish not-yet-stated and DT_UNKNOWN
+	  by readdir, and traverse recursively for the former.  Linux
+	  readdir returns DT_UNKNOWN on some filesystems, e.g., smbfs,
+	  iso9660.
 
-	* thread.c (rb_fd_rcopy): added an argument guard.
-	  Patch by NAKAMURA Usaku. [Bug #5306] [ruby-core:39435]
+Mon Mar 16 17:43:21 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Tue Sep 13 20:21:49 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/webrick/server.rb: Fix regression bug in WEBrick's
+	  :DoNotReverseLookup config option implementation.
+	  [fix GH-731] Patch by @vais
+	* test/webrick/test_do_not_reverse_lookup.rb: ditto.
 
-	* lib/pstore.rb, test/test_pstore.rb: suppress warnings with -v.
+Sat Mar 14 20:05:23 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
 
-	* lib/pstore.rb (PStore): always open in binary mode even if
-	  default encodings are set.  [Bug #5311] [ruby-core:39503]
+	* math.c (math_gamma): optimization for passed small integer.
 
-Tue Sep 13 05:37:15 2011  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sat Mar 14 18:07:23 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
 
-	* io.c (Init_IO): update BINARY comment.  it should not change the
-	  encoding of the result to ASCII-8BIT.  [ruby-talk:387719]
+	* enum.c: [DOC] Fixes Enumerable#member? documentation
+	  [fix GH-756][ci skip] Patch by @shamanime
 
-Mon Sep 12 19:55:00 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Sat Mar 14 12:23:53 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* thread.c (rb_thread_select): fix to ignore an argument
-	  modification of rb_thread_fd_select().
-	  based on a patch by Eric Wong. [Bug #5306] [ruby-core:39435]
-	* thread.c (rb_fd_rcopy): New. for reverse fd copy.
+	* dir.c (glob_helper): use d_type to reduce lstat system calls.
 
-	* test/-ext-/old_thread_select/test_old_thread_select.rb
-	(test_old_select_false_positive): test for bug5306.
+	* win32/dir.h (struct direct): add d_type instead of d_isdir and
+	  d_isrep.  SYMLINKD is unreliable, since the target can be
+	  replaced after a link was created.
 
-	* ext/-test-/old_thread_select/old_thread_select.c (fdset2array):
-	  New. convert fdsets to array.
-	* ext/-test-/old_thread_select/old_thread_select.c (old_thread_select):
-	  return 'read', 'write', 'except' argument of rb_thread_select()
-	  to ruby script.
+	* win32/win32.c (readdir_internal): set d_type.
 
-Mon Sep 12 13:38:12 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Mar 14 02:14:50 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* README.EXT, README.EXT.ja (2.2.2), parse.y (rb_check_id): add
-	  documents for rb_check_id().
+	* parse.y (primary): empty parentheses at cmdarg can be null.
+	  [ruby-core:68477] [Bug #10957]
 
-Mon Sep 12 12:53:39 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+Fri Mar 13 15:04:36 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rake/file_list.rb (Rake::FileList#egrep): there is no need to
-	  open files in binary mode.
-	  see more details in https://github.com/jimweirich/rake/issues/74
+	* ext/stringio/stringio.c (strio_close): don't raise on double
+	  close for consistent to IO#close.
 
-Mon Sep 12 12:42:36 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Mar 13 15:03:20 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_exception.rb (TestException#test_exit_success_p):
-	  assert also the cases when exiting with true and false.
+	* io.c (rb_io_close_read, rb_io_close_write): don't raise after
+	  close same as IO#close.
 
-	* lib/test/unit/assertions.rb (assert_send): make arguments in
-	  the default message clearer.
+Fri Mar 13 12:29:07 2015  Tanaka Akira  <akr@fsij.org>
 
-Sun Sep 11 05:23:14 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* test/readline/test_readline.rb: Restore environment variables:
+	  COLUMNS LINES
 
-	* lib/matrix.rb: Deal with subclasses of Matrix [redmine #5307]
+Fri Mar 13 11:37:46 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Sep 10 13:38:20 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* ext/fiddle/extconf.rb: needs --enable-shared when linked to
+	  libruby or fiddle.so.  since --with-static-linked-ext does no
+	  longer link extensions to ruby program with --enable-shared, the
+	  only combination needs --enable-static is --disable-shared and
+	  --with-static-linked-ext.  [ruby-dev:48901] [Bug #10960]
 
-	* dir.c (dir_s_aref):
-	* dir.c (dir_entries): Two small documentation fixes.
-	  A patch from Aaron Lerch. [Bug #5302] [ruby-core:39404]
+Fri Mar 13 07:02:20 2015  Eric Wong  <e@80x24.org>
 
-Sat Sep 10 08:30:03 2011  Koichi Sasada  <ko1@atdot.net>
+	* ext/socket/init.c (rsock_s_accept_nonblock): use rb_hash_lookup2
+	* ext/openssl/ossl_ssl.c (get_no_exception): new function
+	  (ossl_ssl_accept_nonblock): use get_no_exception
+	  (ossl_ssl_read_internal): ditto
+	  (ossl_ssl_write_nonblock): ditto
+	  [ruby-core:68511]
 
-	* gc.c (GC_PROFILE_MORE_DETAIL, CALC_EXACT_MALLOC_SIZE):
-	  define macros only if they are not defined.
-	  fixes: [Ruby 1.9 - Feature #5291]
+Fri Mar 13 07:01:38 2015  Eric Wong  <e@80x24.org>
 
-Sat Sep 10 08:25:47 2011  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/openssl/ossl_ssl.c: predefine wait_*able symbols
 
-	* parse.y (bv_decls): parse.y relies on $$ = $1 before action
-	  routines.  a patch from Michael Edgar.  [Bug #5303]
-	  [ruby-core:39429]
+Thu Mar 12 22:59:53 2015  Tanaka Akira  <akr@fsij.org>
 
-Sat Sep 10 01:37:55 2011  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	* test/lib/leakchecker.rb: Check environment variables.
 
-	* sample/drb/dhasenc.rb: coding cookie of Emacs is coding,
-	  not encoding.
+Thu Mar 12 05:54:27 2015  Eric Wong  <e@80x24.org>
 
-	* sample/mine.rb: ditto.
+	* ext/socket/init.c (rsock_s_accept_nonblock):
+	  support exception: false
+	  [ruby-core:66385] [Feature #10532]
+	* ext/socket/init.c (rsock_init_socket_init): define new symbols
+	* ext/socket/rubysocket.h: adjust prototype
+	* ext/socket/socket.c (sock_accept_nonblock): support exception: false
+	* ext/openssl/ossl_ssl.c (ossl_ssl_accept_nonblock): ditto
+	* ext/socket/socket.c (Init_socket): adjust accept_nonblock definition
+	* ext/openssl/ossl_ssl.c (Init_ossl_ssl): ditto
+	* ext/socket/tcpserver.c (rsock_init_tcpserver): ditto
+	* ext/socket/unixserver.c (rsock_init_unixserver): ditto
+	* ext/socket/tcpserver.c (tcp_accept_nonblock): adjust
+	  rsock_s_accept_nonblock call
+	* ext/socket/unixserver.c (unix_accept_nonblock): ditto
+	* ext/openssl/ossl_ssl.c (ossl_start_ssl): support no_exception
+	* ext/openssl/ossl_ssl.c (ossl_ssl_connect): adjust ossl_start_ssl call
+	* ext/openssl/ossl_ssl.c (ossl_ssl_connect_nonblock): ditto
+	* ext/openssl/ossl_ssl.c (ossl_ssl_accept): ditto
+	* test/socket/test_nonblock.rb (test_accept_nonblock): test for
+	  "exception :false"
+	* test/socket/test_tcp.rb (test_accept_nonblock): new test
+	* test/socket/test_unix.rb (test_accept_nonblock): ditto
+	* test/openssl/test_pair.rb (test_accept_nonblock_no_exception): ditto
 
-Fri Sep  9 21:56:40 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+Thu Mar 12 10:53:06 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_sqrt): Fix comment.
-	  BigDecimal#sqrt requires argument. Reported by Makoto Kishimoto.
-	  Thanks for your contribution. [Bug #5267] [ruby-dev:44452]
+	* internal.h, node.h: move a definition of `struct rb_global_entry'
+	  and related functions from node.h to internal.h.
 
-Fri Sep  9 11:00:55 2011  Shota Fukumori  <sorah@tubusu.net>
+	* variable.c: remove unused include pragma.
 
-	* test/rubygems/test_gem_commands_help_command.rb: Add one
-	  `require` because if run test-all with test/unit parallel
-	  running, sometimes this test fails by some constants not found.
-	  The error reason is some worker doesn't require the file needed by
-	  this test. This issue is related to [ruby-core:36168].
+	* common.mk: remove unused dependency.
 
-Fri Sep  9 10:22:03 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Mar 12 10:32:39 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* thread.c (rb_thread_select): fix a typo to initialize efds
-	  properly.  [Bug #5299] [ruby-core:39380]
+	* common.mk: remove unused dependency.
 
-Fri Sep  9 02:02:09 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+Thu Mar 12 08:20:14 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* template/yarvarch.ja:
-	  Change encoding from Shift_JIS to UTF-8
+	* load.c: removed unused header file "node.h".
 
-Thu Sep  9 01:14:00 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* method.h: ditto.
 
-	* sample/drb/README.rd.ja:
-	* sample/drb/dhasenc.rb:
-	* sample/mine.rb:
-	  Change encoding from EUC-JP to UTF-8
+	* symbol.c: ditto.
 
-Thu Sep  8 21:03:22 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Mar 12 08:14:48 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/nkf/nkf-utf8/nkf.c: import nkf 2.1.2 (be9c280)
-	  Bump version number/release date only.
+	* gc.c: RGENGC_CHECK_MODE should be 0.
 
-Thu Sep  8 12:43:18 2011  Narihiro Nakamura  <authornari@gmail.com>
+Thu Mar 12 07:44:17 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* gc.c (Init_GC): defined GC::Profiler.raw_data. based on the
-	  patch by Eric Hodel. [ruby-core:37857] [Bug #4991]
+	* internal.h: use T_IMEMO to represent `struct MEMO' value.
+	  memo->v1 and memo->v2 is WB protected values.
+	  So use MEMO_V1/V2_SET() macros to set these values.
+	  memo->u3 is ambiguous (sometimes a VALUE, sometimes an integer
+	  value), so use gc_mark_maybe() in gc.c to mark it.
 
-Thu Sep  8 09:02:53 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  Rename NEW_MEMO() to MEMO_NEW().
 
-	* gc.c (id2ref): objects which are unmarked but not in sweep_slots
-	  are not dead.
+	  Move MEMO_FOR and NEW_MEMO_FOR macros from node.h.
 
-Thu Sep  8 07:44:25 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  Export a rb_imemo_new() function for ext/ripper.
 
-	* transcode.c (rb_declare_transcoder, load_transcoder_entry): no
-	  longer need to limit the length of transcoder library name.
+	* node.h: remove NODE_MEMO.
 
-Thu Sep  8 07:36:36 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* enum.c: catch up these change.
 
-	* ext/syck/lib/syck/types.rb: use toplevel Syck.
-	  for the case someone define Syck::Syck (or YAML::Syck).
+	* enumerator.c: ditto.
 
-Thu Sep  8 07:33:12 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* load.c: ditto.
 
-	* gc.c (id2ref): unmarked object is already dead while lazy
-	  sweeping, and to it cannot come back since other objects
-	  referred from it might have been freed already.
+	* ext/objspace/objspace.c (count_nodes): ditto.
 
-Wed Sep  8 03:48:00 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* gc.c (gc_mark_children): mark imemo_memo type.
 
-	* ext/readline/README.ja:
-	  Change encoding from EUC-JP to UTF-8
+	* parse.y (new_args_gen): use T_IMEMO.
+	  (I'm not sure it is working correctly...)
 
-Wed Sep  8 02:59:00 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+Wed Mar 11 22:36:34 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* test/rexml/test_encoding.rb:
-	  Add require 'require 'rexml/document'
+	* eval.c (frame_called_id): it should use vm_ifunc type.
 
-Wed Sep  8 02:53:00 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* eval.c (frame_func_id): ditto.
 
-	* ext/nkf/nkf-utf8/nkf.c:
-	  Change encoding from ISO-2022 to UTF-8
+Wed Mar 11 22:27:05 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Sep  7 23:41:24 2011  Kouhei Sutou  <kou@cozmixng.org>
+	* node.h: remove NODE_IFUNC, NEW_IFUNC.
 
-	* lib/rexml/parsers/baseparser.rb, test/rexml/test_comment.rb:
-	  allow a single hyphen in comment. [Bug #5278] [ruby-core:39289]
-	  Reported by Thomas Fritzsche. Thanks!!!
+	* internal.h: use T_IMEMO for IFUNC.
 
-Wed Sep  7 17:27:18 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	  rename `struct IFUNC' to `struct vm_ifunc' and move the definition
+	  from vm_insnhelper.h. Add imemo_ifunc.
 
-	* lib/yaml.rb: explicitly specify ::Object to avoid the collision with
-	  Syck::Object.
+	* gc.c (gc_mark_children): mark imemo_ifunc type T_IMEMO object.
 
-Tue Sep  6 21:06:49 2011  Shota Fukumori  <sorah@tubusu.net>
+	* compile.c: catch up these changes.
 
-	* lib/test/unit.rb (_run_suites): Now reports are written the
-	  following order: Skip, Failure, Error. [Feature #5282]
+	* proc.c: ditto.
 
-	* test_sorting.rb: test for above.
+	* vm_core.h (RUBY_VM_IFUNC_P): ditto.
 
-	* test4test_sorting.rb: Ditto.
+	* vm_eval.c (rb_iterate): ditto.
 
-	* lib/test/unit.rb (run): Put RUBY_DESCRIPTION before quitting.
-	  [Feature #5282]
+	* vm_insnhelper.c: ditto.
 
-Tue Sep  6 21:13:47 2011  Masaya Tarui  <tarui@ruby-lang.org>
+	* ext/objspace/objspace.c: ditto.
 
-	* win32/Makefile.sub (INSNS): change command line option -Ks to -Ku
-	  for generate *.inc. because insns.def encoding has been changed SJIS
-	  to UTF-8. if $BASERUBY is 1.9, -Ks cause an error. [Feature #5128]
-	  (same as r33194)
+Wed Mar 11 21:53:43 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Sep  6 15:55:24 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* internal.h, eval_intern.h: move CREF accessors.
 
-	* transcode.c (load_transcoder_entry): concatenate paths directly.
+	  List IMEMO supported types in internal.h.
 
-	* encoding.c (load_encoding): predefined encoding names are safe.
-	  [ruby-dev:44469] [Bug #5279]
+Wed Mar 11 21:45:36 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* transcode.c (load_transcoder_entry): ditto.
+	* vm_insnhelper.h: use T_IMEMO to create THROW_DATA.
 
-Tue Sep  6 12:07:10 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  Add THROW_DATA_NEW().
 
-	* transcode.c: enabled econv newline option.
+	* internal.h: move definition of `struct THROW_DATA'
+	  from vm_insnhelper.h to internal.h.
 
-Tue Sep  6 06:44:57 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	  Rename `THROW_DATA' to `vm_throw_data'.
 
-	* numeric.c (dbl2ival): Fix Float#divmod and #round for 32 bit
-	  platform. part 1 of [bug #5276]
+	* eval_intern.h (THROW_DATA_P): move to internal.h.
+	  THROW_DATA is no longer T_NODE, so check T_IMEMO.
 
-Tue Sep  6 06:44:25 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* gc.c (gc_mark_children): mark THROW_DATA.
 
-	* numeric.c (flo_round): Fix criteria for 32 bits platform
-	  part 2 of [bug #5276]
+	* vm.c: catch up these changes.
 
-Tue Sep  6 05:37:11 2011  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+	* vm_eval.c: ditto.
 
-	* test/rinda/test_rinda.rb (test_core_03_notify): Fixed test failures
-	  [ruby-dev:44430] [Ruby 1.9 - Bug #372]
+	* vm_insnhelper.c: ditto.
 
-Mon Sep  5 20:59:30 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+Wed Mar 11 21:21:56 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* insns.def: change encoding pragma for emacs (shift_jis to utf-8).
+	* vm_insnhelper.c: use T_IMEMO to create SVAR.
 
-Mon Sep  5 19:32:15 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* internal.h, vm_insnhelper.h: move definition `struct SVAR'
+	  from vm_insnhelper.h to internal.h. And rename it to struct vm_svar.
 
-	* Makefile.in (INSNS): change command line option -Ks to -Ku for
-	  generate *.inc. because insns.def encoding has been changed SJIS to
-	  UTF-8. if $BASERUBY is 1.9, -Ks cause an error. [Feature #5128]
+	  new imemo_type imemo_svar is added.
 
-Mon Sep  5 18:10:56 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gc.c (gc_mark_children): mark imemo_svar.
 
-	* transcode.c (rb_econv_binmode): newline decorators are
-	  exclusive.
+	* node.c (rb_gc_mark_node): remove useless marking.
 
-Mon Sep  5 15:03:37 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Wed Mar 11 19:35:46 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* test/rubygems/test_gem_security.rb
-	  (test_class_build_self_signed_cert): reset opt[:trust_dir] to apply
-	  temporary Gem.user_home.
+	* include/ruby/ruby.h: introduce new type T_IMEMO.
+	  T_IMEMO is Internal Memo type, internal use only.
+	  T_IMEMO has same purpose of NODE_MEMO.
 
-Mon Sep  5 10:04:35 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	  To insert T_IMEMO, type numbers are modified a little.
 
-	* README.ja, README.EXT.ja: resolve conflicts. [ruby-dev:44459]
+	* internal.h: define struct RIMemo. Each RIMemo objects
+	  has imemo_type. We can observe it by the imemo_type() function.
 
-Mon Sep  5 05:13:22 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* gc.c (rb_imemo_new): added.
 
-	* numeric.c (flo_round): Make Float#round round big values [bug
-	  #5272]
+	* node.h: remove NODE_CREF and NEW_CREF().
 
-Mon Sep  5 04:28:25 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* node.c (rb_gc_mark_node): ditto.
 
-	* numeric.c (int_round): Integer#round always returns an Integer [Bug
-	  #5271]
+	* vm.c (vm_cref_new): use rb_imem_new().
 
-Sun Sep  4 22:28:50 2011  Shugo Maeda  <shugo@ruby-lang.org>
+	* vm_eval.c: ditto.
 
-	* lib/net/imap.rb (default_port, default_imap_port,
-	  default_tls_port, default_ssl_port, default_imaps_port):
-	  added methods for consistency with Net::POP.
-	  based on the patch by art lussos.  [ruby-core:38997] [Bug #5198]
+	* vm_insnhelper.c: use RIMemo objects for CREF.
 
-Sun Sep  4 21:19:19 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+	* ext/objspace/objspace.c: support T_IMEMO.
 
-	* Change encoding from EUC-JP to UTF-8. [Feature #5128]
+Wed Mar 11 17:03:20 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Sep  4 00:47:39 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* gc.c: fix memory leak by prepend method.
 
-	* test/ruby/test_fiber.rb (TestFiber#test_no_valid_cfp):
-	  add a test. Unlike TestThread#test_no_valid_cfp,
-	  this test succeeds even if win32ole is required (see r33153).
+	  It is easy to reproduce with such script:
 
-Sun Sep  4 00:11:49 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	    module M; def bar; end; end
+	    loop{
+	      Class.new do
+	        def foo; end
+	        prepend M
+	      end
+	    }
 
-	* variable.c (rb_const_set): show the previous definition
-	  location.  [EXPERIMENTAL]
+	* gc.c (obj_free): free T_ICLASS::m_tbl if it is created by prepend.
+	  To recognize it, check RICLASS_IS_ORIGIN flag.
 
-Sat Sep  3 23:56:24 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gc.c (gc_mark_children): T_ICLASS objects only need to mark
+	  T_ICLASS::m_tbl if RICLASS_IS_ORIGIN is set.
 
-	* configure.in (sizeof_struct_dirent_too_small): check if struct
-	  dirent.d_name is too small.
+	* gc.c (obj_memsize_of): count T_ICLASS if RICLASS_IS_ORIGIN is set.
 
-	* configure.in (RUBY_MINGW32): take tool prefix from CC.
+	* internal.h (RCLASS_SET_ORIGIN): add to set RCLASS_SET_ORIGIN.
 
-Sat Sep  3 23:52:08 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  TODO: The word `origin' seems not good name. We need to invent
+	  another good name.
 
-	* io.c (argf_next_argv): open in default text mode.
-	  [ruby-core:39234] [Bug #5268]
+	* class.c: use RCLASS_SET_ORIGIN().
 
-Sat Sep  3 18:40:57 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* class.c (class_alloc): zero clear rb_classext_t.
 
-	* lib/thread.rb (SizedQueue#max=): raise ArgumentError if max is not
-	  positive number. patch by Masaki Matsushita.
-	  [ruby-dev:44449] [Bug #5259]
+Wed Mar 11 13:28:49 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/thread/test_queue.rb (test_sized_queue_initialize,
-	  test_sized_queue_assign_max): add tests for it.
+	* configure.in: check also procstat_getvmmap, which is not
+	  available on FreeBSD 9.  [ruby-core:68468] [Bug #10954]
 
-Fri Sep  2 21:11:16 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_dump.c (procstat_vm): use kinfo_getvmmap instead if
+	  procstat_getvmmap is not available.
 
-	* io.c (validate_enc_binmode, prep_stdio): default to text mode on
-	  dosish platforms.  [ruby-core:38822] [Bug #5164]
+Wed Mar 11 09:15:21 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* transcode.c (rb_econv_prepare_options): keep default ecflags
-	  unchanged if no options.
+	* internal.h: define struct MEMO.
 
-Fri Sep  2 14:36:47 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* enum.c: use MEMO.
 
-	* vm_insnhelper.c (vm_search_const_defined_class): search
-	  ancestors only when global scope.  [ruby-core:39227] [Bug #5264]
+	* enumerator.c: ditto.
 
-Fri Sep  2 09:58:08 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* load.c: ditto.
 
-	* parse.y (parser_tokadd_string, parser_yylex): ignore a backslash
-	  which prefixes an non-ascii character, which has no escape
-	  syntax.  [ruby-core:39222] [Ruby 1.9 - Bug #5262]
+	* node.h: return (struct MEMO *) pointer.
 
-Fri Sep  2 04:05:25 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+Wed Mar 11 06:26:21 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/psych/lib/psych/visitors/yaml_tree.rb: emit strings tagged as
-	  ascii-8bit as binary in YAML.
-	* test/psych/test_string.rb: corresponding test.
+	* vm_insnhelper.h (THROW_DATA_STATE): return int, not VALUE.
 
-Fri Sep  2 01:07:14 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_insnhelper.h (THROW_DATA_STATE_SET): accept int value.
 
-	* numeric.c (flo_round): substitute machine dependent magic number.
+Wed Mar 11 05:06:46 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Sep  1 17:31:22 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_eval.c (rb_catch_protect): use THROW_DATA_VAL().
 
-	* insns.def (defineclass), vm_insnhelper.c (vm_get_cvar_base): see
-	  also inherited constants for classes without superclass and
-	  modules.  [ruby-core:37698] [Bug #3423]
+Wed Mar 11 04:56:04 2015  Koichi Sasada  <ko1@atdot.net>
 
-Thu Sep  1 16:18:44 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+	* vm_insnhelper.h: define struct IFUNC.
 
-	* Release GVL while OpenSSL's public key generation.
+	* vm_eval.c (rb_iterate): use it.
 
-	    t = Thread.new { print "."; sleep 0.1 }
-	    key = OpenSSL::PKey::RSA.new(2048)
-	    #=> Thread t works in parallel with public key generation if
-		OS/machine allows it.
+	* vm_insnhelper.c (vm_yield_with_cfunc): ditto.
 
-	  This works with OpenSSL >= 0.9.8. From this version, it has new
-	  public key generation function which allows us to interrupt the
-	  execution while pkey generation iterations.
+Wed Mar 11 03:52:12 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/openssl/extconf.rb: Check existence of OpenSSL's new public key
-	  generation function. (DH_generate_parameters_ex,
-	  DSA_generate_parameters_ex and RSA_generate_key_ex.
+	* eval_intern.h (THROW_DATA_P): use RB_TYPE_P() instead of
+	  BUILTIN_TYPE().
 
-	* ext/openssl/ossl_pkey.{h,c} (ossl_generate_cb_2,
-	  ossl_generate_cb_stop): Added new callback function for OpenSSL pkey
-	  generation which handles Thread interruption by Ruby.
-	  ossl_generate_cb_stop is the unblock function(ubf) for Ruby which
-	  sets a stop flag. New pkey generation callback ossl_generate_cb_2
-	  checks the stop flag at each iterations of OpenSSL and interrupts
-	  pkey generation when the flag is set.
+	* thread.c (thread_join): use THROW_DATA_P().
 
-	* ext/openssl/ossl_pkey_dsa.c (dsa_generate): Call
-	  rb_thread_blocking_region with the above unblock function to release
-	  GVL while pkey generation.
+Wed Mar 11 03:48:01 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/openssl/ossl_pkey_rsa.c (rsa_generate): ditto.
+	* proc.c: use RUBY_VM_IFUNC_P() to recognize IFUNC or not.
 
-	* ext/openssl/ossl_pkey_dh.c (dh_generate): ditto.
+	* vm.c: ditto.
 
-	* test/openssl/test_pkey_{dh,dsa,rsa}.rb: Test it.
+	* vm_dump.c: ditto.
 
-Thu Sep  1 14:06:54 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* vm_insnhelper.c: ditto.
 
-	* test/ruby/test_thread.rb (TestThread#test_no_valid_cfp): skip when
-	  win32ole is required.  in such case, win32ole redefines
-	  Thread#initialize, and the block argument becomes to be not the top
-	  of the thread, then this testcase always fails.
+	* vm_core.h (RUBY_VM_IFUNC_P): use RB_TYPE_P() instead of
+	  BUILTIN_TYPE().
 
-Thu Sep  1 10:20:50 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed Mar 11 03:21:37 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* test/ruby/test_io_m17n.rb (TestIO_M17N#test_{default_mode_on_dosish,
-	  default_mode_on_unix,text_mode,binary_mode}): sorry for wrong test
-	  committed in r33144.  I'd misunderstood the spec of ruby's universal
-	  newline.
+	* vm_insnhelper.h: define struct THROW_DATA to represent
+	  throwing data. Also define accessor functions.
 
-Thu Sep  1 09:27:57 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* eval_intern.h: move related changes into vm_insnhelper.h.
+	  Now these MACROs (functions) are only used in vm*.c.
 
-	* variable.c (rb_autoloading_value): Fix the order of definitions.
-	  It is used by autoload_defined_p.
+	  There is only THROW_DATA_P(err) to check this data type or not.
 
-Wed Aug 31 17:28:23 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+	* vm.c: catch up these changes.
 
-	* variable.c (rb_autoload): There was a chance to run GC (from
-	  rb_str_new2()) before finishing autoload_data_i construction. It
-	  caused SEGV at rb_gc_mark() at autoload_i_mark.
+	* vm_eval.c: ditto.
 
-	* variable.c (rb_autoload_load): Move RB_GC_GUARD() to proper
-	  position based on suggestion by CHIKANAGA Tomoyuki at
-	 http://d.hatena.ne.jp/nagachika/20110826/ruby_trunk_changes_33070_33078
+	* vm_insnhelper.c: ditto.
 
-	* variable.c (autoload_defined_p): Fix incompatible autoload behavior
-	  that causes Rails crash. Class definition instruction defined in
-	  'defineclass' in insns.def always invokes rb_autoload_load for a
-	  constant. It's invoked for every class definition regardless of
-	  existence of autoload definition. rb_autoload_load checks if a
-	  constant is defined as autoloaded, but new thread-safe autoload
-	  returned different value if the constant is under autoloading.
+Wed Mar 11 00:57:00 2015  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Wed Aug 31 17:20:56 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+	* test/rubygems/test_gem_security_trust_dir.rb: The return value of
+	  File::Stat#mode is OS dependent. In AIX, 0200000 is set.
 
-	* Re-apply r33078, thread-safe autoload which is reverted at r33093.
+Tue Mar 10 20:03:41 2015  Tanaka Akira  <akr@fsij.org>
 
-Wed Aug 31 16:28:04 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* lib/webrick/server.rb: Invoke setup_shutdown_pipe in start method
+	  instead of listen method.
+	  [ruby-core:68476] [Bug #10956] Reported by Shintaro Kojima.
 
-	* test/ruby/test_io_m17n.rb (TestIO_M17N#test_{default_mode_on_dosish,
-	  default_mode_on_unix,text_mode,binary_mode}): tests for [Bug #5164].
+Tue Mar 10 17:27:27 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Aug 31 15:54:11 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* thread.c (thread_join): Fixnum (except TAG_FATAL) and
+	  NODE should not be reached here.
 
-	* ext/json: Merge json gem v1.5.4 (3dab4c5a6a97fac03dac).
+Mon Mar  9 21:42:10 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Aug 31 13:09:41 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* vm_insnhelper.c (ep_cref): rename to lep_cref() because it should be
+	  local ep.
 
-	* numeric.c (flo_round): Avoid overflow by optimizing for trivial
-	  cases [Bug #5227]
+Mon Mar  9 16:34:36 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Aug 31 00:50:01 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* ext/stringio/stringio.c (strio_close): don't raise on double
+	  close for consistent to IO#close.
 
-	* win32/win32.c (rb_w32_select_with_thread): and my typo. we all must
-	  be more careful.
+Mon Mar 09 06:44:48 2015  Koichi Sasada  <ko1@atdot.net>
 
-Wed Aug 31 00:48:38 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* vm_insnhelper.h: define struct SVAR for SVAR.
+	  This data type is also same layout of NODE (NODE_IF).
 
-	* thread.c (rb_thread_select): critical typo in r33117.
+	* vm_insnhelper.c: catch up this change.
 
-Wed Aug 31 00:30:49 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+Mon Mar  9 06:43:21 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* test/-ext-/old_thread_select/test_old_thread_select.rb
-	  (TestOldThreadSelect#test_old_select_read_timeout): if the machine
-	  is fast enough, the time used by code around IO.select may be smaller
-	  than Time implement threshold.
+	* vm_insnhelper.c (lep_svar_set): add WBs.
 
-Wed Aug 31 00:04:38 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+Mon Mar  9 06:19:06 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/-test-/old_thread_select/old_thread_select.c (old_thread_select):
-	  typo.
+	* internal.h: define rb_cref_t and change to use it.
 
-	* test/-ext-/old_thread_select/test_old_thread_select.rb
-	  (TestOldThreadSelect#test_old_select_signal_safe): use SIGINT instead
-	  of SIGUSR1 because the former is general and the latter is platform
-	  dependent.
+	  rb_cref_t is data type of CREF. Now, the body is still NODE.
+	  It is easy to understand what is CREF and what is pure NODE.
 
-Tue Aug 30 23:59:36 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+Mon Mar  9 06:00:37 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* win32/win32.c, include/ruby/intern.h (rb_w32_fd_copy): implement
-	  for rb_thread_select() in thread.c.  the use of rb_fd_copy() is
-	  introduced in r33117.
-	  [Bug #5251] [ruby-core:39195]
+	* vm_insnhelper.h (COPY_CREF_OMOD): fix translation miss.
 
-	* thread.c (rb_thread_select): must call rb_fd_init() before using
-	  rb_fdset_t.  see the implementations of rb_fd_init()s if you want to
-	  know the reason.
+Mon Mar  9 04:47:58 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Aug 30 22:34:45 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* internal.h: define CREF accessor macros.
+	  * CREF_CLASS(cref)
+	  * CREF_NEXT(cref)
+	  * CREF_VISI(cref)
+	  * CREF_VISI_SET(cref, v)
+	  * CREF_REFINEMENTS(cref)
+	  * CREF_PUSHED_BY_EVAL(cref)
+	  * CREF_PUSHED_BY_EVAL_SET(cref)
+	  * CREF_OMOD_SHARED(cref)
+	  * CREF_OMOD_SHARED_SET(cref)
+	  * CREF_OMOD_SHARED_UNSET(cref)
 
-	* test/dl/test_callback.rb (test_callback_with_string): prevents
-	  temporary string from GC.
+	  This is process to change CREF data type from NODE.
 
-Tue Aug 30 22:25:38 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+Sun Mar  8 22:50:57 2015  Tanaka Akira  <akr@fsij.org>
 
-	* vm_insnhelper.c (vm_call_cfunc): revert r33112.  RB_GC_GUARD macro
-	  protect a VALUE from GC.  It's not for general anti-optimizing
-	  purpose.
+	* ext/zlib/zlib.c (rb_gzfile_close): Don't raise on double
+	  close for consistent to IO#close.
 
-Tue Aug 30 11:06:19 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Sun Mar  8 16:57:35 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/json: Merge json gem 1.5.4+ (2149f4185c598fb97db1).
-	  [Bug #5173] [ruby-core:38866]
+	* dir.c (glob_helper): match patterns against legacy short names
+	  too, not only ordinary names.  [ruby-core:67954] [Bug #10819]
 
-Tue Aug 30 09:57:50 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* win32/dir.h (struct direct): add short name members.
 
-	* lib/thread.rb (Queue#pop): fix a race against Thread.wakeup.
-	  Patch by Masaki Matsushita <glass.saga at gmail dot com>
-	  [Bug #5195] [ruby-dev:44400]
+	* win32/win32.c (opendir_internal, readdir_internal): ditto.
 
-Tue Aug 30 09:48:07 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Sat Mar  7 09:36:05 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* cont.c (fiber_entry): fix stack allocation failure on Debian
-	  GNU/kFreeBSD.
-	  Patch by Lucas Nussbaum <lucas at lucas-nussbaum dot net>.
-	  [Bug #5241] [ruby-core:39147]
+	* array.c: document that first element is kept when using
+	  Array#uniq and #uniq! [fix GH-845][ci skip]
+	  Patch by @riffraff
 
-Tue Aug 30 09:28:01 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Sat Mar  7 09:28:02 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* thread.c (rb_thread_select): rewrite by using
-	  rb_thread_fd_select(). old one is EINTR unsafe.
-	  Patch by Eric Wong. [Bug #5229] [ruby-core:39102]
+	* thread.c: Mutex#owned? is no longer experimental since 2.1.0
+	  [fix GH-839][ci skip] Patch by @takiy33
 
-	* test/-ext-/old_thread_select/test_old_thread_select.rb:
-	  a testcase for rb_thread_select().
-	* ext/-test-/old_thread_select/old_thread_select.c: ditto.
-	* ext/-test-/old_thread_select/depend: ditto.
-	* ext/-test-/old_thread_select/extconf.rb: ditto.
+Sat Mar  7 09:18:42 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Tue Aug 30 09:08:22 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* tool/merger.rb: Added documentation to version method.
+	  [fix GH-847][ci skip] Patch by @magikid
 
-	* configure.in: fix a build failure on GNU Hurd.
-	  Patch by Samuel Thibault <sthibault at debian dot org>. Thank you!
-	  [Bug #5250] [ruby-core:39185]
+Fri Mar  6 22:50:36 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Aug 29 23:22:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+	* class.c (rb_prepend_module): need a WB for klass -> origin.
 
-	* test/ruby/test_numeric.rb (test_num2long): modify a test against the
-	  change by r33108.
+Fri Mar  6 20:18:38 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sun Aug 29 09:58:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+	* fix namespace issue on singleton class expressions. [Bug #10943]
 
-	* numeric.c (bit_coerce): A Fixnum and a Bignum are only permitted for
-	 bitwise arithmetic with a Fixnum.  #1792
+	* vm_core.h, method.h: remove rb_iseq_t::cref_stack. CREF is stored
+	  to rb_method_definition_t::body.iseq_body.cref.
 
-	* test/ruby/test_fixnum.rb: add tests for the above change.
+	* vm_insnhelper.c: modify SVAR usage.
+	  When calling ISEQ type method, push CREF information onto method
+	  frame, SVAR located place. Before this fix, SVAR is simply nil.
+	  After this patch, CREF (or NULL == Qfalse for not iseq methods)
+	  is stored at the method invocation.
 
-	* bignum.c (bit_coerce): A Fixnum and a Bignum are only permitted for
-	 bitwise arithmetic with a Bignum.  #1792
+	  When SVAR is required, then put NODE_IF onto SVAR location,
+	  and NDOE_IF::nd_reserved points CREF itself.
 
-	* test/ruby/test_bignum.rb: add tests for the above change.
+	* vm.c (vm_cref_new, vm_cref_dump, vm_cref_new_toplevel): added.
 
-Sun Aug 28 15:38:17 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* vm_insnhelper.c (vm_push_frame): accept CREF.
 
-	* ext/date/date_parse.c (date_zone_to_diff): keep a temporary string
-	  stored in variable while the contents buffer is being used.
+	* method.h, vm_method.c (rb_add_method_iseq): added. This function
+	  accepts iseq and CREF.
 
-	* ext/date/date_parse.c (date_zone_to_diff): get rid of out of bounds
-	  memory read. [ruby-dev:44409] [Bug #5213]
+	* class.c (clone_method): use rb_add_method_iseq().
 
-Sun Aug 28 05:29:50 2011  Ryan Davis  <ryand-ruby@zenspider.com>
+	* gc.c (mark_method_entry): mark method_entry::body.iseq_body.cref.
 
-	* lib/minitest/*: Imported minitest 2.5.1 (r6596)
-	* test/minitest/*: ditto
+	* iseq.c: remove CREF related codes.
 
-Sat Aug 27 20:46:05 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* insns.def (getinlinecache/setinlinecache): CREF should be cache key
+	  because a different CREF has a different namespace.
 
-	* vm.c (rb_vm_rewrite_dfp_in_errinfo): change return type
-	  to suppress a warning.
+	* node.c (rb_gc_mark_node): mark NODE_IF::nd_reserved for SVAR.
 
-	* vm_core.h: ditto.
+	* proc.c: catch up changes.
 
-Sat Aug 27 19:04:06 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* struct.c: ditto.
 
-	* internal.h (rb_strftime_timespec): moved from time.c and define only
-	  if ruby/encoding.h is included.
+	* insns.def: ditto.
 
-	* internal.h (rb_strftime): ditto.
+	* vm_args.c (raise_argument_error): ditto.
 
-Sat Aug 27 18:53:51 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+	* vm_eval.c: ditto.
 
-	* proc.c (proc_new): force to rewrite errinfo when calling Proc.new in ensure.
-	  [Bug #5234] [ruby-core:39125]
-	  This code will be removed after changing throw mechanism (see r33064).
+	* test/ruby/test_class.rb: add a test.
 
-	* vm.c (rb_vm_rewrite_dfp_in_errinfo): new function.
+Fri Mar  6 18:19:13 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* vm.c (vm_make_env_each): changed accordingly.
+	* test/webrick/test_filehandler.rb: on vboxsf (on VirtualBox
+	  on Windows 7), file name and permissions are strange (can access
+	  by short file name and so on).
 
-	* vm_core.h: ditto.
+	  Simply skip on such tests on such FS. To detect strange FS, this
+	  patch use a part of code `File.executable?(__FILE__)`.
+	  Please correct them if there are better ways.
 
-	* bootstraptest/test_flow.rb: add tests for above.
+Fri Mar  6 17:31:29 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Aug 27 18:44:06 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* test/ruby/test_beginendblock.rb: do not change directory.
 
-	* internal.h (rb_strftime_timespec): move to time.c because it depends
-	  encoding.h.
+	  Run system command in the directory mounted by vboxsf on Windows 7
+	  and get warning like that "warning: Insecure world writable dir...".
 
-Sat Aug 27 18:17:58 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Fri Mar  6 10:31:00 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* strftime.c (rb_strftime_with_timespec): get enc argument to specify
-	  the encoding of the format. On Windows (at least Japanese Windows),
-	  Time#strftime("%Z") includes non ASCII in locale encoding (CP932).
-	  So convert locale to default internal. [ruby-core:39092] [Bug #5226]
+	* vm_eval.c (vm_call_super): search next super class from the
+	  original class, to get rid of infinite recursion with
+	  prepending.  a patch by Seiei Higa <hanachin AT gmail.com> at
+	  [ruby-core:68434].  [ruby-core:68093] [Bug #10847]
 
-	* strftime.c (rb_strftime): ditto.
+Fri Mar  6 08:45:26 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
-	* strftime.c (rb_strftime_timespec): ditto.
+	* lib/matrix.rb: Add Vector#round. Patch by Jordan Stephens.
+	  [Fixes GH-802]
 
-	* internal.h (rb_strftime_timespec): follow above.
+Fri Mar  6 07:33:03 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* time.c (rb_strftime_alloc): ditto.
+	* gc.c (obj_info): show node name too.
 
-	* time.c (strftimev): ditto.
+Fri Mar  6 07:00:44 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* time.c (time_strftime): ditto.
+	* internal.h: remove struct method_table_wrapper.
+	  struct method_table_wrapper was introduced to avoid duplicate marking
+	  for method tables.
 
-	* time.c (time_to_s): the resulted string of Time#to_s is always
-	  ascii only, so this should be US-ASCII.
+	  For example, `module M1; def foo; end; end` make one method table
+	  (mtbl) contains a method `foo`. M1 (T_MODULE) points mtbl.
+	  Classes C1 and C2 includes M1, then two T_ICLASS objects are created
+	  and they points mtbl too. In this case, three objects (one T_MODULE
+	  and two T_ICLASS objects) points same mtbl. On marking phase, these
+	  three objects mark same mtbl. To avoid such duplication, struct
+	  method_table_wrapper was introduced.
 
-	* time.c (time_asctime): ditto.
+	  However, created two T_ICLASS objects have same or shorter lifetime
+	  than M1 (T_MODULE) object. So that we only need to mark mtbl from M1,
+	  not from T_ICLASS objects. This patch tries marking only from M1.
+	  In other words, original module (M1) has responsibility to mark mtbl.
+	  Because of no duplicate marking, we don't need method_table_wrapper
+	  any more.
 
-Sat Aug 27 11:18:12 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+	  Note that one `Module#prepend` call creates two T_ICLASS objects.
+	  One for referring to a prepending Module object, same as
+	  `Module#include`. We don't need to care this T_ICLASS.
+	  One for moving original mtbl from a prepending class. We need to
+	  mark such mtbl from this T_ICLASS object. To mark the mtbl,
+	  we need to use `RCLASS_ORIGIN(klass)` on marking from a prepended
+	  class `klass`.
 
-	* Revert r33078. It caused a Rails application NoMethodError.
+	* class.c: ditto.
 
-	 /home/nahi/git/emptyApp/ruby/1.9.1/gems/rack-mount-0.6.14/lib/rack/mount/utils.rb:157: warning: toplevel constant ScanError referenced by Regin::Parser::ScanError
-	 /home/nahi/git/emptyApp/ruby/1.9.1/gems/rack-mount-0.6.14/lib/rack/mount/vendor/regin/regin/parser.rb:17:in `parse_regexp': undefined method `scan_str' for #<Regin::Parser:0x00000002344548> (NoMethodError)
+	* eval.c (rb_using_refinement): ditto.
 
-Sat Aug 27 08:44:58 2011  Eric Hodel  <drbrain@segment7.net>
+	* gc.c: ditto.
 
-	* lib/rdoc:  Import RDoc 3.9.4.  Typo and grammar fixes by Luke Gruber.
-	  [Ruby 1.9 - Bug #5203]
+	* include/ruby/ruby.h: define m_tbl directly. The definition of
+	  struct RClass should be moved to (srcdir)/internal.h.
 
-Sat Aug 27 07:53:34 2011  Eric Hodel  <drbrain@segment7.net>
+	* method.h: remove decl of rb_free_m_tbl_wrapper().
 
-	* lib/open-uri.rb:  Fix indentation of OpenURI::OpenRead#open.  Use ++
-	  instead of `' for method arguments in open-uri.rb
+	* object.c: use RCLASS_M_TBL() directly.
 
-Sat Aug 27 07:22:07 2011  Eric Hodel  <drbrain@segment7.net>
+Fri Mar  6 02:50:12 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/pathname/lib/pathname.rb:  Fix typos and grammar mistakes.  Patch
-	  by Luke Gruber.  [#5203]
-	* ext/pty/lib/expect.rb:  ditto
-	* lib/mathn.rb:  ditto
-	* lib/net/http.rb:  ditto
-	* lib/open-uri.rb:  ditto
-	* lib/ostruct.rb:  ditto
-	* lib/tempfile.rb:  ditto
-	* lib/thread.rb:  ditto
-	* lib/weakref.rb:  ditto
-	* sample/webrick/httpproxy.rb:  ditto
+	* dir.c (replace_real_basename): need to check the return value of
+	  GLOB_REALLOC().
 
-Sat Aug 27 04:03:18 2011  Koichi Sasada  <ko1@atdot.net>
+Fri Mar  6 02:26:03 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* iseq.c (iseq_data_to_ary): fix type of variable
-	  (long -> unsigned long) to suppress a warning.
+	* dir.c (replace_real_basename): shouldn't create Ruby object before
+	  the object system is loaded.
+	  [ruby-core:68430] [Bug #10941]
 
-Sat Aug 27 04:02:11 2011  Koichi Sasada  <ko1@atdot.net>
+Wed Mar  5 16:58:43 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
 
-	* vm_core.h: add a decl. of rb_autoloading_value().
+	* hash.c: [DOC] #delete method actually returns nil, if the key
+	  is not found. [fix GH-844][ci skip] Patch by @ivdma
 
-Fri Aug 26 19:12:08 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+Wed Mar  5 12:22:23 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
 
-	* variable.c: Make autoload thread-safe. See #921.
+	* math.c: refactoring: remove unnecessary variable d0 to unify code
+	  appearance.
 
-	  What's the problem?
-	    autoload is thread unsafe. When we define a constant to be
-	    autoloaded, we expect the constant construction is invariant. But
-	    current autoload implementation allows other threads to access the
-	    constant while the first thread is loading a file.
+Thu Mar  5 11:50:54 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	  What's happening inside?
-	    The current implementation uses Qundef as a marker of autoload in
-	    Constant table. Once the first thread find Qundef as a value at
-	    constant lookup, it starts loading a defined feature. Generally a
-	    loaded file overrides the Qundef in Constant table by module/class
-	    declaration at very beginning lines of the file, so other threads
-	    can see the new Module/Class object before feature loading is
-	    finished. It breaks invariant construction.
+	* vm_eval.c (eval_string_with_cref): A binding should keep
+	  refinements activation information and the refinements should be
+	  activated in subsequent eval calls with the binding.
+	  [ruby-core:67945] [Bug #10818]
 
-	  How to solve?
-	    To ensure invariant constant construction, we need to override
-	    Qundef with defined Object after the feature loading. For keeping
-	    Qundef in Constant table, I expanded autoload_data struct in
-	    Module to have a slot for keeping the defined object while feature
-	    loading. And changed Module's constant lookup/update logic a
-	    little so that the slot is only visible from the thread which
-	    invokes feature loading. (== the first thread which accessed the
-	    autoload constant)
+Thu Mar  5 11:16:55 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	  Evaluation?
-	    All test passes (bootstrap test, test-all and RubySpec) and added
-	    8 tests for threading behavior. Extra logics are executed only
-	    when Qundef is found, so no perf drop should happen except
-	    autoloading.
+	* test/ruby/test_refinement.rb: There is no need anymore to suppress
+	  warnings.
 
-	* variable.c (rb_autoload): Prepare new autoload_data struct.
+Thu Mar  5 08:31:02 2015  Rei Odaira  <Rei.Odaira@gmail.com>
 
-	* variable.c (rb_autoload_load): Load feature and update Constant
-	  table after feature loading is finished.
+	* random.c (random_raw_seed): Avoid calling fill_random_bytes()
+	  if the requested size is 0. AIX returns -1 for 0-byte read from
+	  /dev/urandom, while other UNIX returns 0. With this change,
+	  Random.raw_seed(0) consistently returns "" in any UNIX.
 
-	* variable.c (rb_const_get_0): When the fetched constant is under
-	  autoloading, it returns the object only for the thread which starts
-	  autoloading.
+Wed Mar  4 12:43:32 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
 
-	* variable.c (rb_const_defined_0): Ditto.
+	* test/ruby/test_math.rb (assert_float_and_int): Refactor test cases
+	  by introducing assert_float_and_int. [misc #10810]
 
-	* variable.c (rb_const_set): When the specified constant is under
-	  autoloading, it sets the object only for the thread which starts
-	  autoloading. Otherwise, simply overrides Qundef with constant
-	  override warning.
+Wed Mar  4 11:52:30 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_insnhelper.c (vm_get_ev_const): Apply same change as
-	  rb_const_get_0 in variable.c.
+	* symbol.c (Init_sym): make dsym_fstrs a hash compared by identity
+	  as the keys are unique fstrings, to get rid of running hash and
+	  compare methods and causing new object allocation during garbage
+	  collection phase.  [ruby-dev:48891] [Bug #10933]
 
-	* test/ruby/test_autoload.rb: Added tests for threading behavior.
+Wed Mar  4 10:16:57 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Fri Aug 26 10:10:37 2011  Eric Hodel  <drbrain@segment7.net>
+	* enum.c: Fix typo in slice_after's exception message.
+	  [fix GH-842][ci skip] Patch by @jsyeo
 
-	* lib/rubygems:  Update to RubyGems 1.8.10.  Fixes security issue in
-	  creating ruby-format gemspecs.  Fixes Gem.dir not being at the front
-	  of Gem.path to fix uninstall and cleanup commands.  Fixes gem
-	  uninstall stopping on the first missing gem.
+Wed Mar  4 10:15:37 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Fri Aug 26 08:21:10 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+	* doc/syntax/methods.rdoc: add some missing spaces and
+	  fix a grammatical error in method docs.
+	  [fix GH-843][ci skip] Patch by @nikolas
 
-	* time.c (strftimev): Make Time#to_s default to US-ASCII encoding but
-	  respect Encoding.default_internal. [ruby-core:39092]
-	* test/ruby/test_time.rb (class TestTime): Corresponding test.
+Wed Mar  4 02:13:06 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Thu Aug 25 09:43:16 2011  Eric Hodel  <drbrain@segment7.net>
+	* tool/redmine-backporter.rb (backport_command_string): pick up only
+	  when the revision exists in trunk.
 
-	* ext/openssl/lib/openssl/bn.rb:  Hide copyright info from RDoc.
-	* ext/openssl/lib/openssl/digest.rb:  ditto
-	* ext/openssl/lib/openssl/x509.rb:  ditto
-	* ext/openssl/lib/openssl/cipher.rb:  ditto
+Wed Mar  4 00:44:56 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Aug 25 09:25:48 2011  Eric Hodel  <drbrain@segment7.net>
+	* thread.c (rb_thread_io_blocking_region): assigned variables
+	  inside EXEC_TAG() should be volatile.
 
-	* ext/openssl/ossl_digest.c:  Document OpenSSL::Digest::digest and add
-	  an example to OpenSSL::Digest.  Patch by Sylvain Daubert.
-	  [Ruby 1.9 - Bug #5166]
-	* ext/openssl/lib/openssl/digest.rb (module OpenSSL):  ditto
+	* thread.c (rb_thread_s_handle_interrupt): ditto.
 
-Thu Aug 25 08:19:43 2011  Koichi Sasada  <ko1@atdot.net>
+	* thread.c (exec_recursive): ditto.
 
-	* vm.c (vm_make_env_each): work around to solve Bug #2729.
-	  fixes: Bug #2729
-	  a patch from Kazuki Tsujimoto <kazuki@callcc.net>
-	  This problem is caused by changing dfp (dynamic env pointer)
-	  from saved dfp.  Saved dfp is pointed env in VM stack.  However,
-	  the dfp can be moved because VM copies env from VM stack to
-	  the heap.  At this copying, dfp was also changed.  To solve this
-	  problem, I'll try to change throw mechanism (not save target dfp,
-	  but save target cfp).
+Wed Mar  4 00:29:18 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* bootstraptest/test_flow.rb: add a test for above.
+	* tool/redmine-backporter.rb: now can specify shorten form of commands.
 
-Thu Aug 25 07:57:33 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+Tue Mar  3 23:41:42 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* numeric.c (int_round): Fix Integer#round [ruby-core:39096]
+	* tool/redmine-backporter.rb (Readline.readline): drop untreated control
+	  characters.
 
-Thu Aug 25 07:00:00 2011  Koichi Sasada  <ko1@atdot.net>
+Tue Mar  3 22:25:24 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* vm_insnhelper.h, vm_insnhelper.c, vm.c, vm_method.c, insns.def:
-	  Manage a redefinition of special methods for each classes.
-	  A patch from Joel Gouly <joel.gouly@gmail.com>.  Thanks!
+	* test/lib/envutil.rb (EnvUtil.invoke_ruby): need to rescue because
+	  Signal.signame may raise exception.
 
-Thu Aug 25 06:51:08 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+Tue Mar  3 16:57:39 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/psych/lib/psych.rb: Fixing psych version number.
-	* ext/psych/psych.gemspec: updating the gemspec.
+	* tool/redmine-backporter.rb: use 'b' instead of 's' for showing
+	  Backport options for merger.rb.
 
-Thu Aug 25 06:11:35 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+Tue Mar  3 16:55:23 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/psych/lib/psych/nodes/node.rb: default `to_yaml` encoding to be
-	  UTF-8.
-	* test/psych/test_encoding.rb: test yaml dump encoding.
+	* tool/redmine-backporter.rb: show selected ticket number at prompt.
 
-Thu Aug 25 01:24:33 2011  Naohisa Goto  <ngotogenome@gmail.com>
+Tue Mar  3 14:47:30 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
 
-	* test/fileutils/test_fileutils.rb (test_chmod_symbol_mode): Solaris
-	  seems to behave the same as FreeBSD.
+	* math.c (num2dbl_with_to_f): direct casting from Rational to double.
+	  [Feature #10909]
 
-Thu Aug 25 01:11:36 2011  Naohisa Goto  <ngotogenome@gmail.com>
+	* test/ruby/test_math.rb: add tests for the above change.
 
-	* test/ruby/test_rubyoptions.rb (test_script_from_stdin): slave pty
-	  should be manipulated because master pty may not be a tty on some
-	  environment (e.g. Solaris). [Bug:#5222] [ruby-dev:44420]
+Tue Mar  3 07:52:20 2015  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Wed Aug 24 15:13:56 2011  Koichi Sasada  <ko1@atdot.net>
+	* test/ruby/test_symbol.rb: avoid a false positive in AIX.
 
-	* iseq.h, iseq.c, compile.c: Change the line number data structure
-	  to solve an issue reported at [ruby-dev:44413] [Ruby 1.9 - Bug #5217].
-	  Before this fix, each instruction has an information including
-	  line number (iseq::iseq_insn_info_table).  Instead of this data
-	  structure, recording only line number changing places
-	  (iseq::iseq_line_info_table).
-	  The order of entries in iseq_line_info_table is ascending order of
-	  iseq_line_info_table_entry::position.  You can get a line number
-	  by an iseq and a program counter with this data structure.
-	  This fix reduces memory consumption of iseq (bytecode).
-	  On my measurement, a rails application consumes 21.8MB for
-	  iseq with this fix on the 32bit CPU.  Without this fix, it
-	  consumes 24.7MB for iseq [ruby-dev:44415].
+Tue Mar  3 00:59:39 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* proc.c: ditto.
+	* configure.in: set PRELOADENV in Solaris to avoid "wrong ELF class"
+	  error. [Bug #10926] [ruby-dev:48888]
+	* configure.in: set LIBPATHENV for 32-bit compile in Solaris
+	  in addition to 64-bit.
 
-	* vm_insnhelper.c: ditto.
+Mon Mar  2 15:36:10 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_method.c: ditto.
+	* configure.in: do not check _setjmp unless _longjmp is available,
+	  so that configure results will not be changed by cache.
 
-	* vm.c (rb_vm_get_sourceline): change to use rb_iseq_line_no().
+Mon Mar  2 14:44:56 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Aug 24 09:49:10 2011  Koichi Sasada  <ko1@atdot.net>
+	* configure.in (RUBY_REPLACE_TYPE): restore unsigned type from
+	  cached variable only if the target type is not available.
 
-	* insns.def (defined): fix to checking class variable.
-	  A patch by Magnus Holm <judofyr@gmail.com>.  Thanks!
+Mon Mar  2 13:04:27 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_variable.rb: add a test for above.
+	* signal.c (sig_signame): return nil if the argument is a valid
+	  signal number.
 
-Wed Aug 24 08:53:06 2011  Eric Hodel  <drbrain@segment7.net>
+Mon Mar  2 12:05:04 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* lib/rdoc:  Update to RDoc 3.9.3.  Fixes RDoc with `ruby -Ku`.  Allows
-	  HTTPS image paths to be turned into <img> tags.  Prevents special
-	  markup inside <tt> from being processed.
+	* test/net/ftp/test_ftp.rb (create_ftp_server): set SO_OOBINLINE
+	  for receiving OOB data which is sent with MSG_OOB flag in
+	  portable way. [Bug #10915] [ruby-dev:48885]
+	* test/net/ftp/test_ftp.rb (test_abort, test_status): use gets
+	  for receiving OOB data in portable way.
 
-Wed Aug 24 07:57:43 2011  Eric Hodel  <drbrain@segment7.net>
+Mon Mar  2 11:43:07 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rubygems:  Update to RubyGems 1.8.9.  Fixes uninstalling multiple
-	  gems and gem cleanup.
+	* configure.in (RUBY_REPLACE_TYPE): restore unsigned type from
+	  cached variable.
 
-Wed Aug 24 06:45:20 2011  Ryan Davis  <ryand-ruby@zenspider.com>
+Mon Mar  2 06:01:41 2015  Eric Wong  <e@80x24.org>
 
-	* lib/minitest/*: Imported minitest 2.5.0 (r6557)
-	* test/minitest/*: ditto
+	* ext/io/wait/wait.c (io_nread): wrap return value with INT2FIX
+	  Thanks to Yura Sokolov <funny.falcon@gmail.com>
+	  [ruby-core:68369] [Bug#10923]
+	* test/io/wait/test_io_wait.rb (test_nread_buffered):
+	  fix broken test
 
-Wed Aug 24 00:38:22 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+Sun Mar  1 20:21:16 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* thread.c (update_coverage): skip coverage count up if the current
-	  line is out of the way.  rb_sourceline() is unreliable when source
-	  code is big.  [ruby-dev:44413]
+	* configure.in (RUBY_REPLACE_TYPE): restore convertible type from
+	  cached variable, so that configured results will be stable.
 
-	* test/coverage/test_coverage.rb: add a test for above.
+Sun Mar  1 18:10:34 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Aug 23 15:23:56 2011  Eric Hodel  <drbrain@segment7.net>
+	* configure.in (rb_cv_broken_memmem): check before adding the
+	  result HAVE_MEMMEM macro to confdefs.h, so that configured
+	  results will be stable.
 
-	* load.c (rb_f_require):  Improve documentation of Kernel#require.
-	  [Ruby 1.9 - Bug #5210]
+Sun Mar  1 11:17:56 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Aug 23 11:27:26 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+	* gc.c (id2ref): prohibit from accessing internal objects.
+	  [ruby-core:68348] [Bug #10918]
 
-	* ext/zlib/zlib.c (gzfile_read_header): Ensure that each section of
-	  gzip header is readable to avoid SEGV.
+Sun Mar  1 09:06:11 2015  Tanaka Akira  <akr@fsij.org>
 
-	* test/zlib/test_zlib.rb (test_corrupted_header): Test it.
+	* lib/time.rb (strptime): Support %s.%N.
+	  [ruby-core:68301] [Bug #10904] Patch by Sadayuki Furuhashi.
 
-Mon Aug 22 23:43:33 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+Sat Feb 28 17:18:39 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* sprintf.c (rb_str_format): add RB_GC_GUARD to prevent temporary
-	  strings from GC.
+	* enum.c (enum_each_slice, enum_each_cons): limit elements size by
+	  the enumerator size.  suggested by Hans Mackowiak <hanmac AT
+	  gmx.de> at [ruby-core:68335]
 
-Sun Aug 21 17:49:53 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+Sat Feb 28 15:44:20 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* iseq.c (iseq_s_disasm): remove variable which is no longer used
-	  since r33013.
+	* vm_dump.c (rb_vm_bugreport): get rid of making new strings
+	  inside signal context.
 
-Sun Aug 21 14:20:58 2011  Naohisa Goto  <ngotogenome@gmail.com>
+	* variable.c (rb_tmp_class_path): defer making temporary class
+	  path string.
 
-	* configure.in: use LD_LIBRARY_PATH_64 on 64-bit Solaris.
+	* variable.c (rb_search_class_path): search class path or return
+	  Qnil or Qfalse if unnamed, not creating a temporary path.
 
-Sat Aug 20 13:19:52 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+Sat Feb 28 15:02:02 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* iseq.c (iseq_s_disasm): fix a bug that may cause SEGV.
+	* variable.c (rb_tmp_class_path): preserve name encoding of an
+	  anonymous instance of module/class subclass.
 
-	* test/ruby/test_method.rb (test_body): add a test for the above change.
+Sat Feb 28 08:24:30 2015  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Sat Aug 20 10:43:24 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/pty/pty.c: AIX supports autopush.
+	  Patch by Perry Smith [ruby-core:58539] [Bug #9144]
 
-	* ext/stringio/stringio.c (strio_read): return new string if nil
-	  is explicitly given as a buffer ([Bug #5207]), otherwise set the
-	  encoding.  also removed dead code.
+Fri Feb 27 22:00:05 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Fri Aug 19 14:25:51 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/rubygems: Update to RubyGems 2.4.6 and HEAD(800f2e6).
+	  Fixed #1159, #1171, #1173 on rubygems/rubygems
+	* test/rubygems: ditto.
 
-	* process.c (proc_spawn_v, proc_spawn): should not wait the
-	  spawned process.
+Fri Feb 27 20:55:42 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* process.c (proc_spawn_v): fix missing argument, and try with
-	  /bin/sh only if failed with ENOEXEC.
+	* lib/rake: Update to rake (9237e74), typo fix and remove needless
+	  private syntax.
+	* test/rake: ditto.
 
-Fri Aug 19 14:12:57 2011  Shugo Maeda  <shugo@ruby-lang.org>
+Fri Feb 27 17:06:44 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/net/imap.rb (idle): raises a Net::IMAP::Error when the
-	  connection is closed.  based on the patch by Hugo Barauna.
-	  [Bug #5190] [ruby-core:38930]
+	* vm_core.h: define vm_svar_index.
 
-Fri Aug 19 13:18:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+	* vm_insnhelper.c, vm.c, compile.c: use vm_svar_index names.
 
-	* configure.in: defines _DARWIN_UNLIMITED_SELECT if the target_os
-	  is darwin.
+	* iseq.h: remove DEFAULT_SPECIAL_VAR_COUNT.
+	  use VM_SVAR_FLIPFLOP_START instead.
 
-Fri Aug 19 13:14:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+Fri Feb 27 13:57:48 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* thread.c: add a description for the behavior of select(2) on
-	  Mac OS X 10.7 (Lion).
+	* io.c (setup_narg): wipe away expanded part of buffer to get rid
+	  of revealing uncleaned data.  reported by Dongkwan Kim <dkay AT
+	  kaist.ac.kr>.
 
-Fri Aug 19 11:28:58 2011  Shugo Maeda  <shugo@ruby-lang.org>
+Wed Feb 25 22:25:07 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* lib/net/imap.rb (msg_att): accepts extra space before ')'.
-	  based on the patch by art lussos.  [Bug #5163] [ruby-core:38820]
+	* spec/default.mspec: use default configuration file name.
+	  https://github.com/ruby/rubyspec/commit/cc69f337b06362e5607ffa3e3ad40ef7494960cf
 
-Wed Aug 17 23:01:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+Wed Feb 25 22:21:56 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* ext/bigdecimal/bigdecimal.c (cannot_be_coerced_into_BigDecimal):
-	  remove duplication.
+	* spec/default.mspec: remove specific version number.
+	  https://github.com/ruby/rubyspec/commit/7a909e925c1baa9c700bd44af9241aef6e596714
 
-Wed Aug 17 15:27:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+Wed Feb 25 22:04:04 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/bigdecimal/bigdecimal.c (cannot_be_coerced_into_BigDecimal):
-	  add a new function for raising error when an object cannot coerce
-	  into BigDecimal.  [Bug #5172]
+	* ext/win32/Win32API.rb (initialize): accept both a string and an array
+	  for the arguments of the imported function.
+	  reported by Aaron Stone [ruby-core:68208] [Bug #10876] [Fixes GH-835]
 
-	* ext/bigdecimal/bigdecimal.c (BigDecimalValueWithPrec): use
-	  cannot_be_coerced_into_BigDecimal function.
+Wed Feb 25 18:12:11 2015  Eric Wong  <e@80x24.org>
 
-	* ext/bigdecimal/bigdecimal.c (BigMath_s_exp): ditto.
+	* signal.c (sighandler): preserve errno
+	  Patch by Steven Stewart-Gallus <sstewartgallus00@mylangara.bc.ca>
+	  [ruby-core:68172] [Bug #10866]
 
-	* ext/bigdecimal/bigdecimal.c (BigMath_s_log): ditto.
+Wed Feb 25 15:59:35 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/bigdecimal/test_bigdecimal.rb: test for the above changes.
+	* dir.c (push_pattern, push_glob): make globbed file names same
+	  encoding to the given pattern.
 
-	* test/bigdecimal/testbase.rb (under_gc_stress): add a new utility
-	  method to run tests under the condition of GC.stress = true.
+Wed Feb 25 15:27:16 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Wed Aug 17 10:16:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+	* tool/merger.rb: support 2.1+ versioning scheme.
 
-	* rational.c (nurat_coerce): Rational#coerce should converts itself
-	  into Complex if the argument is a Complex with non-zero imaginary
-	  part.  [Bug #5020] [ruby-dev:44088]
+Tue Feb 25 08:49:12 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
 
-	* test/ruby/test_rational.rb (test_coerce): test for the above change.
+	* lib/cmath.rb (log): raise ArgumentError when more than 2 arguments
+	  are passed. [ruby-core:66143] [Bug #10487]
 
-Wed Aug 17 06:33:19 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+Tue Feb 25 02:15:17 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
 
-	* ext/openssl/ossl_x509cert.c: Add class documentation for
-	  OpenSSL::X509::Certificate.
+	* test/ruby/test_math.rb: Use assert_infinity instead of assert_equal(1.0/0, ...).
 
-Wed Aug 17 04:54:25 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* test/ruby/test_math.rb: Add tests for overriding Integer#to_f.
+	  [ruby-core:67919] [Misc #10809]
 
-	* ext/openssl/ossl_pkey.c: corrected docs, OpenSSL::PKey::DH does
-	  *not* support #sign/verify.
+Tue Feb 24 22:58:48 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Aug 16 18:56:54 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* complex.c (nucomp_mul): calculate as rotation in complex plane
+	  if matrix calculation resulted in NaN.
 
-	* vm.c (ruby_threadptr_data_type): rename to hide.
-	  [ruby-core:38972]
+Tue Feb 24 21:45:39 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
 
-Tue Aug 16 18:52:08 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/test_math.rb(test_cbrt): Add an assertion for Math.cbrt(1.0/0)
+	  and move #test_cbrt to more proper place.
 
-	* win32/mkexports.rb (Exports::Mswin#each_export): exclude Init_
-	  and _threadptr_ functions, as well as mingw.
+Tue Feb 24 19:09:25 2015  Koichi Sasada  <ko1@atdot.net>
 
-Tue Aug 16 09:31:44 2011  Eric Hodel  <drbrain@segment7.net>
+	* vm_insnhelper.c (lep_svar_place, lep_svar_get): do not create
+	  additional T_NODE object (svars holder) when only getting
+	  svars.
 
-	* ext/dl:  Add documentation.  Patch by Vincent Batts.
-	  [Ruby 1.9 - Bug #5192]
+Tue Feb 24 11:49:48 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Aug 16 08:48:26 2011  Eric Hodel  <drbrain@segment7.net>
+	* time.c (time_zone_name): should be US-ASCII only if all 7-bits,
+	  otherwise locale encoding.  [ruby-core:68230] [Bug #10887]
 
-	* ext/.document (fiddle):  Remove duplicate entry
-	* ext/fiddle:  Complete documentation of Fiddle.  Patch by Vincent
-	  Batts.  [#5192]
+Tue Feb 24 09:47:07 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Aug 16 08:00:15 2011  Eric Hodel  <drbrain@segment7.net>
+	* string.c (chompped_length): enable smart chomp for all non-dummy
+	  encoding strings, not only default_rs.
+	  [ruby-core:68258] [Bug #10893]
 
-	* ext/socket:  Make Socket documentation appear.  Add documentation for
-	  Socket, TCPServer, SOCKSSocket.  Patch by Sylvain Daubert.
-	  [Ruby 1.9 - Feature #5182]
+Mon Feb 23 23:19:42 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Aug 15 09:58:55 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* tool/vcs.rb (IO.popen): support :chdir option.
 
-	* ext/openssl/ossl_ssl.c: Support disabling OpenSSL compression.
+	* tool/vcs.rb (VCS::GIT.get_revisions): use :chdir option instead
+	  of -C option which is not supported by older git.
+	  [ruby-dev:48880] [Bug #10890]
 
-	* test/openssl/test_ssl.rb: Add a test for it.
-	  Thanks to Eric Wong for the patch.
-	  [Ruby 1.9 - Feature #5183] [ruby-core:38911]
+Mon Feb 23 15:26:39 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Aug 14 05:57:01 2011  Tanaka Akira  <akr@fsij.org>
+	* string.c (rb_str_split_m): raise ArgumentError at broken string
+	  not RegexpError, as Regexp is not involved in.
+	  [ruby-core:68229] [Bug #10886]
 
-	* test/socket/test_socket.rb (test_connect_timeout): added a test
-	  based on a patch by Eric Wong.  [ruby-core:38910]
+Mon Feb 23 07:25:29 2015  Benoit Daloze  <eregontp@gmail.com>
 
-Sat Aug 13 22:17:27 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* time.c: Zone encoding should be US-ASCII if all 7-bits. Fix r46907.
 
-	* tool/mkconfig.rb: do not make the entries related to sitedir and
-	  verdordir if disabled by --without options.  [ruby-core:38922]
-	  [Bug #5187]
+	* test/ruby/test_time.rb, test/ruby/test_time_tz.rb: Update tests.
 
-Sat Aug 13 17:03:22 2011  Tadayoshi Funaba  <tadf@dotrb.org>
+Sun Feb 22 18:33:42 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* ext/date/date_core.c: [ruby-core:38861]
+	* common.mk: use ruby organization for rubyspec.
 
-Sat Aug 13 09:39:07 2011  Tadayoshi Funaba  <tadf@dotrb.org>
+Sun Feb 22 15:56:06 2015  Kazuki Tsujimoto  <kazuki@callcc.net>
 
-	* test/date/test_*.rb: added tests.
+	* vm_insnhelper.c (rb_vm_rewrite_cref_stack): copy nd_refinements
+	  of original crefs. It fixes segmentation fault when calling
+	  refined method in duplicate module. [ruby-dev:48878] [Bug #10885]
 
-Sat Aug 13 09:36:19 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* vm_core.h, class.c: change accordingly.
 
-	* ext/date/date_parse.c (parse_ddd_cb): fix r32896. RB_GC_GUARD
-	  insertion position was mistaken. [ruby-dev:44337] [Bug #5152]
+	* test/ruby/test_refinement.rb: add a test for above.
 
-Sat Aug 13 09:26:24 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+Sun Feb 22 10:43:37 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/psych/lib/psych/core_ext.rb: Make Kernel#y private.
-	  [ruby-core:38913]
+	* gc.c (rb_objspace_call_finalizer): control GC execution during
+	  force firnalizations at the end of interpreter process.
+	  [Bug #10768]
 
-	* test/psych/test_yaml.rb: corresponding test.
+	  1) Prohibit incremental GC while running Ruby-level finalizers
+	     to avoid any danger.
+	  2) Prohibit GC while invoking T_DATA/T_FILE data structure
+	     because these operations break object relations consistency.
 
-Sat Aug 13 09:05:16 2011  Tadayoshi Funaba  <tadf@dotrb.org>
+	  This patch can introduce another memory consuming issue because
+	  Ruby-level finalizers can run after (2), GC is disabled.
+	  However, basically object consistency was broken at (2) as I
+	  described above. So that running Ruby-level finalizers contains
+	  danger originally. Because of this point, I need to suggest to
+	  remove these 3 lines (invoking remaining finalizers). And add a
+	  rule to add that finalizers should not add new finalizers, or
+	  say there is no guarantee to invoke finalizers that added by
+	  another finalizer.
 
-	* ext/date/date_core.c (date_strftime_alloc): followed the change
-	  of r32885.
+Sun Feb 22 04:07:05 2015  Zachary Scott  <e@zzak.io>
 
-	* doc/NEWS-1.9.3: followed the above change.
+	* ext/openssl/ossl_asn1.c: [DOC] RDoc formatting fixes for
+	  ASN1::ObjectId with patch from @vbatts [Fixes GH-834]
 
-Sat Aug 13 08:55:38 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+	* ext/openssl/ossl_bn.c: ditto.
 
-	* ext/psych/lib/psych/scalar_scanner.rb: Only consider strings
-	  with fewer than 2 dots to be numbers. [ruby-core:38915]
+Sat Feb 21 19:51:49 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Aug 13 08:47:20 2011  Tadayoshi Funaba  <tadf@dotrb.org>
+	* re.c (match_aref): RMatch::regexp is Qnil after matching by a
+	  string since r45451.  [ruby-core:68209] [Bug #10877]
 
-	* ext/date/date_core.c: [ruby-core:38855].
+Sat Feb 21 16:18:42 2015  Stefan Schuler  <mail@stefanschuessler.de>
 
-Sat Aug 13 03:41:37 2011  Eric Hodel  <drbrain@segment7.net>
+	* compar.c (Init_Comparable): [DOC] Replace camelcase variable name.
+	  [Fix GH-833]
 
-	* lib/uri/common.rb:  Fix documentation of URI::Parser.new.  Patch by
-	  Steve Klabnik.  [Ruby 1.9 - Bug #5177]
+Fri Feb 20 17:27:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Aug 13 02:19:57 2011  Eric Hodel  <drbrain@segment7.net>
+	* file.c (rb_file_identical_p): fix handle leak, ensure to close
+	  the handle of the first argument.
 
-	* ext/digest/digest.c:  Add documentation for the Digest module.  Patch
-	  by Sylvain Daubert.  [Ruby 1.9 - Bug #5167]
+Fri Feb 20 17:19:23 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Aug 13 01:56:11 2011  Eric Hodel  <drbrain@segment7.net>
+	* win32/win32.c (different_device_p): compare by volume serial
+	  numbers, not by path names.  [ruby-core:68162] [Bug #10865]
 
-	* lib/rake:  Update to Rake 0.9.2.2.  Prevent pollution of toplevel
-	  namespace by Commands.  Remove unused variable and debugging
-	  statement in tests.
+Thu Feb 19 01:58:10 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Aug 12 11:39:35 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* win32/file.c (rb_file_expand_path_internal): neither the drive
+	  of base directory nor the current drive are involved in the
+	  result if different than the drive of path.
+	  [ruby-core:68130] [Bug #10858]
 
-	* configure.in: Describe "no" configure option for site_ruby
-	  and vendor_ruby. Patch by Vit Ondruch. [Bug #5187][ruby-core:38921]
+Wed Feb 18 10:48:56 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Aug 12 09:00:24 2011  Eric Hodel  <drbrain@segment7.net>
+	* win32/win32.c (wrename): return EXDEV if moving a directory to
+	  another drive, since MoveFileExW does not set proper error code.
+	  [ruby-core:68162] [Bug #10865]
 
-	* lib/rubygems:  Import RubyGems 1.8.8.  Fixes encoding of YAML gemspec
-	  from gems.  Github Issue #149
+Wed Feb 18 03:13:52 2015  Aaron Patterson <aaron@tenderlovemaking.com>
 
-Fri Aug 12 08:17:46 2011  Tanaka Akira  <akr@fsij.org>
+	* ext/psych/lib/psych.rb: bump psych version.
+	* ext/psych/psych.gemspec: ditto
+	* ext/psych/yaml/scanner.c: add latest libyaml change.
+	* test/psych/helper.rb: support newer minitest
+	* test/psych/test_to_yaml_properties.rb: ditto
 
-	* ext/socket/ipsocket.c (init_inetsock_internal): use SOMAXCONN for
-	  listen backlog.
+Tue Feb 17 11:47:17 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/unixsocket.c (rsock_init_unixsock): ditto.
+	* lib/resolv.rb (Resolv::DNS::Resource#==, #hash): elements
+	  returned by Kernel#instance_variables are Symbols now.
+	  [ruby-core:68128] [Bug #10857]
 
-	* ext/socket/lib/socket.rb (Addrinfo#listen): ditto.
-	  (Socket.tcp_server_sockets_port0): ditto.
+Tue Feb 17 10:59:10 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* ext/socket/mkconstants.rb: define SOMAXCONN as 5 if not available.
+	* doc/syntax/calling_methods.rdoc: Fix documentation for "calling_methods"
+	  Patch by @sos4nt [fix GH-830][ci skip]
 
-	[ruby-core:38493]
+Tue Feb 17 10:53:29 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Aug 12 03:24:35 2011  Eric Hodel  <drbrain@segment7.net>
+	* win32/file.c (rb_file_expand_path_internal): do not make invalid
+	  (or ADS) path if the path has a drive letter, the result also
+	  should have be under it.  [ruby-core:68130] [Bug #10858]
 
-	* lib/rdoc:  Import RDoc 3.9.2.  Fixes TIDYLINK for HTML output.
+Tue Feb 17 10:47:20 2015  Iain Beeston  <iain.beeston@gmail.com>
 
-Thu Aug 11 15:37:42 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+	* hash.c: Added docs to explain that #include? and #member? do not
+	  check member equality
+	* lib/set.rb: ditto
 
-	* variable.c (autoload_delete): An autoload entry is still in a
-	  RCLASS_IV_TBL, not in a RCLASS_CONST_TBL, so take back the table
-	  changed in r29600. And an autoload entry keeps not a
-	  rb_const_entry_t but a NODE so remove rb_const_entry_t thing added
-	  in r29602.
+Mon Feb 16 20:58:49 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Aug 11 15:07:36 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* compile.c (compile_massign): optimization for special case,
+	  assignments by aset or attrset.
+	  http://kokizzu.blogspot.jp/2015/02/c-java-hhvm-ruby-nodejsrhinojscspidermo.html
+	  http://www.atdot.net/~ko1/diary/201502.html#d16
 
-	* lib/mkmf.rb (link_command): use LIBRUBYARG in rbconfig for
-	  unbundled extensions.  [ruby-core:38802] [Bug #5147]
+Sun Feb 15 10:41:23 2015  Sho Hashimoto  <sho-h@ruby-lang.org>
 
-	* lib/mkmf.rb (init_mkmf): revert r32902.  [ruby-core:38903]
+	* doc/standard_library.rdoc: [DOC] delete removed libraries.
+	  [misc #10843] [ci skip]
 
-Wed Aug 10 23:03:55 2011  Tanaka Akira  <akr@fsij.org>
+Sat Feb 14 12:20:01 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/lib/socket.rb: fix argument check in the previous commit.
+	* random.c (rand_random_number): add a method to return a random
+	  number like SecureRandom to Random::Formatter.
 
-Wed Aug 10 22:12:28 2011  Tanaka Akira  <akr@fsij.org>
+	* lib/securerandom.rb (random_bytes): move to Random::Formatter,
+	  the base method of the module.
 
-	* ext/socket/lib/socket.rb (Socket.tcp): add :connect_timeout option.
-	  (Addrinfo#connect_from): add :timeout option.
-	  (Addrinfo#connect): ditto.
-	  (Addrinfo#connect_to): ditto.
-	  [ruby-core:38538]
+Sat Feb 14 12:01:32 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Aug 10 21:27:19 2011  Tanaka Akira  <akr@fsij.org>
+	* random.c (random_raw_seed): extract platform dependent random
+	  seed initialization function as a new method Random.raw_seed.
 
-	* lib/net/pop.rb: fix typo in document.
+	* lib/securerandom.rb (SecureRandom): use Random.raw_seed.
 
-	* lib/net/http.rb: ditto.
+Sat Feb 14 00:49:37 2015  Aaron Patterson <aaron@tenderlovemaking.com>
 
-	* lib/net/imap.rb: ditto.
+	* ext/coverage/coverage.c: Add Coverage.peek_result.  Allows you to
+	  capture coverage information without stopping the coverage tool.
+	  [ruby-core:67940] [Feature #10816]
 
-Wed Aug 10 19:30:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+	* test/coverage/test_coverage.rb: test for change.
 
-	* complex.c (nucomp_rationalize): calls rationalize of real part if
-	  imaginary part is exactly zero.  The patch is made by Marc-Andre
-	  Lafortune.  fixes [Bug #5178] [ruby-core:38885]
+Fri Feb 13 21:52:05 2015  Yusuke Endoh  <mame@tsg.ne.jp>
 
-	* test/ruby/test_complex.rb (test_rationalize): add a test for the
-	  above change.
+	* string.c (str_discard): does not free for STR_NOFREE string.
+	  [Bug #10853][ruby-core:68110]
 
-	* complex.c (nucomp_to_r): fix RDoc comment.  The patch is made by
-	  Marc-Andre Lafortune.
+	* bootstraptest/test_string.rb: test for above.
 
-Wed Aug 10 14:11:07 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Feb 13 21:16:00 2015  Yusuke Endoh  <mame@tsg.ne.jp>
 
-	* lib/mkmf.rb (init_mkmf): set $LIBRUBYARG regardless of shared
-	  option.  [ruby-core:38802] [Bug #5147]
+	* lib/base64.rb: make urlsafe mode user-friendly.
 
-Wed Aug 10 02:53:27 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* lib/base64.rb (Base64.urlsafe_encode64): a new option "padding" to
+	  suppress the padding character ("=").
 
-	* lib/net/http.rb: come back autoload. OpenSSL constant is used
-	  some places, so it leads mistakes like HTTP.start.
+	* lib/base64.rb (Base64.urlsafe_decode64): now it accepts not only
+	  correctly-padded input but also unpadded input.
+	  [Feature #10740][ruby-core:67570]
 
-Tue Aug  9 22:57:45 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* test/base64/test_base64.rb: Test for above
 
-	* ext/date/date_parse.c (date_zone_to_diff): add RB_GC_GUARD.
-	  [ruby-dev:44337] [Bug #5152]
+Fri Feb 13 14:19:06 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* ext/date/data_parse.c (parse_ddd_cb): ditto.
+	* ext/json: merge upstream from flori/json
+	  change usage of TypedData. [Feature #10739][ruby-core:67564]
 
-Tue Aug  9 14:25:47 2011  Naohisa Goto  <ngotogenome@gmail.com>
+Thu Feb 12 18:34:01 2015  multisnow  <infinity.blick.winkel@gmail.com>
 
-	* ext/fiddle/conversions.c (generic_to_value): ffi_arg and ffi_sarg
-	  should be used to handle shorter return value. fix [Bug #3861]
-	  [ruby-core:32504]
+	* ext/openssl/extconf.rb: check RAND_edg to support libressl.
 
-	* ext/fiddle/closure.c (callback): ditto
+	* ext/openssl/ossl_rand.c (ossl_rand_egd): define only if RAND_edg
+	  is available.  [Fix GH-829]
 
-	* ext/fiddle/conversions.h (fiddle_generic): ditto
+Thu Feb 12 10:46:14 2015  Eric Hodel  <drbrain@segment7.net>
 
-	* ext/fiddle/conversions.c (value_to_generic): char, short and int
-	  are strictly distinguished on big-endian CPU, e.g. sparc64.
+	* proc.c (proc_call):  Improve Proc#call documentation.  Patch by
+	  Hsing-Hui Hsu.  [fix GH-761]
 
-Tue Aug  9 11:21:08 2011  Narihiro Nakamura  <authornari@gmail.com>
+Thu Feb 12 04:33:02 2015  Benoit Daloze  <eregontp@gmail.com>
 
-	* gc.c (gc_lazy_sweep): if sweep target slots are not found, we
-	  try heap_increment() because it might be able to expand the
-	  heap. [Bug #5127] [ruby-dev:44285]
+	* compar.c (cmp_equal): no more error hiding for Comparable#==.
+	  It now behaves as other Comparable methods. See #7688.
 
-	* gc.c (gc_clear_mark_on_sweep_slots): if a sweeping was
-	  interrupted, we expand the heap if at all possible.
+	* test/ruby/test_comparable.rb: update related test.
 
-Tue Aug  9 12:20:33 2011  Naohisa Goto  <ngotogenome@gmail.com>
+Thu Feb 12 03:28:05 2015  Eric Wong  <e@80x24.org>
 
-	* test/fiddle/helper.rb (libc_so, libm_so): Solaris support added.
-	  [ruby-core:38853] [Bug #5168]
+	* lib/set.rb (initialize): internal hash defaults to false
 
-	* test/dl/test_base.rb (libc_so, libm_so): on Solaris, remove libc
-	  and libm version numbers for detecting default libc and libm.
+	* lib/set.rb (include?): use Hash#[] for optimized dispatch.
+	  Patch by Ismael Abreu <ismaelga@gmail.com>
+	  [ruby-core:67664] [Misc #10754]
 
-Tue Aug  9 09:18:04 2011  Eric Hodel  <drbrain@segment7.net>
+Wed Feb 11 11:09:52 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/zlib/zlib.c (gzfile_wrap):  Document encoding options.
+	* ext/digest/digest_conf.rb (digest_conf): check for CommonDigest.
 
-	* ext/zlib/zlib.c (rb_gzwriter_s_open): ditto
+	* ext/digest/*/*cc.h: for Apple CommonCrypto/CommonDigest.h.
 
-	* ext/zlib/zlib.c (rb_gzreader_s_open): ditto
+	* ext/digest/digest.h (DEFINE_FINISH_FUNC_FROM_FINAL): macro for
+	  finish functions, by inverting arguments order.
 
-Sun Aug  7 23:31:32 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* ext/digest/digest_conf.rb (digest_conf): extract common
+	  configurations.
 
-	* time.c (rb_strftime_alloc): raise ERANGE if width is too large.
-	  Patch by Nobuyoshi Nakada. [Bug #4457] [ruby-dev:43285]
+Wed Feb 11 11:01:33 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_time.rb (class TestTime): add a test for the
-	  above change.
+	* ext/json/generator/generator.c (generate_json): get rid of
+	  unnecessary recursive calls which can cause infinite recursion.
+	  T_STRING may not have rb_cString.
 
-Sun Aug  7 22:51:45 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Wed Feb 11 07:53:35 2015  Masaki Suketa <masaki.suketa@nifty.ne.jp>
 
-	* ext/openssl/ossl_asn1.c (decode_eoc): remove unused variables.
-	  Patch by Eric Wong. [Feature #5157] [ruby-core:38798]
+	* test/win32ole/test_word.rb: use skip method to skip test.
 
-	* ext/openssl/ossl_asn1.c (ossl_asn1_decode): ditto.
+Tue Feb 10 11:38:28 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* ext/openssl/ossl_pkey.c (ossl_pkey_new_from_data): ditto.
+	* vm_insnhelper.c (vm_call_method): stop method search when a method
+	  is not found in a refinement, to support undef in refinements.
+	  [ruby-core:66741] [Bug #10578]
 
-Sun Aug  7 22:37:08 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Tue Feb 10 11:19:11 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* configure.in: add -Wunused-variable to default CFLAGS.
-	  Patch by Eric Wong. [Feature #5157] [ruby-core:38798]
+	* lib/net/ftp.rb (chdir, delete, gettextfile, mdtm, mkdir, nlst,
+	  putbinaryfile, puttextfile, rename, rmdir, size): support
+	  Pathname. Patch by Joe Rafaniello. [fix GH-828]
 
-Sun Aug  7 15:37:35 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Mon Feb  9 16:36:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/digest/sha2/sha2ossl.c: use original SHA384_Final on DragonFly.
+	* tool/make-snapshot (package): get rid of loading unbundled and
+	  unexpected libraries.  [ruby-core:67977] [Bug #10822]
 
-Sun Aug  7 14:08:16 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+Sun Feb  8 20:09:37 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* ext/objspace/objspace.c: fix typos in a document.
+	* lib/net/http/header.rb: pass header names as symbols.
+	  Patch by @DamirSvrtan [fix GH-805]
+	* test/net/http/test_httpheader.rb: added test.
 
-Sun Aug  7 07:14:57 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Sun Feb  8 13:04:25 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* cont.c (HAVE_GETCONTEXT): see getcontext(3) because DragonFly BSD
-	  x64 port doesn't have it.
+	* ext/socket/getaddrinfo.c (get_addr): reject too long hostname to
+	  get rid of GHOST vulnerability on very old platforms.
 
-Sun Aug  7 00:42:55 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* ext/socket/raddrinfo.c (make_hostent_internal): ditto, paranoic
+	  check for the canonical name.
 
-	* ext/tk/lib/tk/wm.rb (Tk::Wm.command): Add the missing receiver
-	  before calling epath. patched by flori
-	 https://github.com/flori/ruby/commit/aa9474d32e5f2c57f8b0e2e0c528a03f06a4d433
+Sun Feb  8 12:48:38 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Aug  6 07:06:34 2011  Eric Hodel  <drbrain@segment7.net>
+	* ext/win32/lib/win32/registry.rb (Win32::Registry::API): use wide
+	  versions of RegDeleteValue and RegDeleteKey.
+	  [ruby-core:67958] [Bug #10820]
 
-	* marshal.c (w_object):  Fix exception message when _dump_data is not
-	  defined on a T_DATA object.
+Sat Feb  7 22:13:08 2015  Masaki Suketa <masaki.suketa@nifty.ne.jp>
 
-Fri Aug  5 22:16:20 2011  Naohisa Goto  <ngotogenome@gmail.com>
+	* test/win32ole/test_win32ole_record.rb: remove test using .NET
+	  Framework 3.5 because it is not included in Windows 8/8.1.
 
-	* numeric.c (rb_infinity, rb_nan): use WORDS_BIGENDIAN to get endian.
-	  fix [Bug #5160] [ruby-dev:44356]
+Sat Feb  7 19:25:25 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Aug  5 17:14:11 2011  Akinori MUSHA  <knu@iDaemons.org>
+	* dir.c (has_magic): always get long path name on Windows even if
+	  no tilde is there.  [ruby-core:68011] [Bug #10819]
 
-	* test/test_syslog.rb (TestSyslog#test_log): Do not be too
-	  specific about the log line format.  Fixes #5081.
+	* dir.c (replace_real_basename): FindFirstFile ignore redirection
+	  character, check if exists before call it.  cf. [Bug #8597]
 
-Fri Aug  5 15:57:10 2011  Naohisa Goto  <ngotogenome@gmail.com>
+Sat Feb  7 13:30:11 2015  Masaki Suketa <masaki.suketa@nifty.ne.jp>
 
-	* complex.c (f_signbit): fix compile error in gcc4 on Solaris with
-	  CFLAGS="-std=gnu99".  [ruby-dev:44355] fix [Bug #5159]
+	* test/win32ole/test_win32ole_record.rb
+	  (test_ole_instance_variable_get): correct VT_RECORD type and
+	  instance variables.
 
-	* math.c: ditto.
+Fri Feb  6 17:47:05 2015  Aaron Patterson <aaron@tenderlovemaking.com>
 
-Fri Aug  5 15:55:33 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: register nodes when
+	  dumping objects with custom coders. [ruby-core:66215] [Bug #10496]
 
-	* test/ruby/test_object.rb: tests that respond_to? returns false.
+	* test/psych/test_coder.rb: test for fix
 
-Fri Aug  5 13:32:43 2011  Shugo Maeda  <shugo@ruby-lang.org>
+Fri Feb  6 16:58:31 2015  Aaron Patterson <aaron@tenderlovemaking.com>
 
-	* lib/xmlrpc/client.rb, lib/xmlrpc/server.rb: should use
-	  String#bytesize instead of String#size.
+	* ext/psych/lib/psych/visitors/to_ruby.rb: fix support for regular
+	  expressions with newlines. tenderlove/psych#222
 
-Fri Aug  5 12:18:20 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/psych/test_yaml.rb: test for change.
 
-	* vm_eval.c (check_funcall): try respond_to? first if redefined.
-	  [Bug #5158]
+Fri Feb  6 10:31:50 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Aug  5 09:48:22 2011  Eric Hodel  <drbrain@segment7.net>
+	* vm_core.h (rb_call_info_kw_arg_struct): make keywords a symbols
+	  list to get rid of inadvertent creation by variable keyword
+	  arguments.  [ruby-core:68031] [Bug #10831]
 
-	* lib/rubygems:  Import RubyGems 1.8.7:
-	  Added missing require for `gem uninstall --format-executable`.
+Thu Feb  5 22:42:34 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	  The correct name of the executable being uninstalled is now displayed
-	  with --format-executable.
+	* lib/rubygems:  Update to RubyGems HEAD(5c3b6f3).
+	  Fixed #1156, #1142, #1115, #1142, #1139 on rubygems/rubygems
+	* test/rubygems:  ditto.
 
-	  Fixed `gem unpack uninstalled_gem` default version picker.
+Thu Feb  5 13:41:01 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	  RubyGems no longer claims a nonexistent gem can be uninstalled.
+	* vm_eval.c (send_internal), vm_insnhelper.c (vm_call_opt_send):
+	  convert String method name into a Symbol, as method_missing
+	  method expects its first argument to be a Symbol.  [Bug #10828]
 
-	  `gem which` no longer claims directories are requirable files.
+	* vm_insnhelper.c (ci_missing_reason): return the reason of method
+	  missing in call info.
 
-	  `gem cleanup` continues cleaning up gems if one can't be uninstalled
-	  due to permissions.  Issue #82.
+	* vm_insnhelper.c (vm_call_opt_send): re-apply r49500 with the
+	  proper missing reason.  [Bug #10828]
 
-	  Gem repository directories are no longer created world-writable.
-	  Patch by Sakuro OZAWA.  [Ruby 1.9 - Bug #4930]
+Thu Feb  5 10:31:46 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Fri Aug  5 07:00:31 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* class.c (rb_obj_singleton_methods): should use RTEST() to convert
+	  VALUE to int.
 
-	* test/io/console/test_io_console.rb (test_noctty): daemon() on
-	  Fedora Rawhide seems not to detach the controlling terminal,
-	  when the argument noclose is non-zero.  ref: [Bug #5135]
+Thu Feb  5 03:59:33 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
-Thu Aug  4 23:48:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+	* vm_insnhelper.c: Fix symbol leak with +send+ [Bug #10828]
 
-	* thread_pthread.c (native_cond_signal): retry to call pthread_cond_signal
-	  and pthread_cond_broadcast if they return EAGAIN in
-	  native_cond_signal and native_cond_broadcast, respectively.
-	  It is for the pthread implementation of Mac OS X 10.7 (Lion).
-	  fixes #5155.  [ruby-dev:44342].
+Wed Feb  4 20:26:54 2015  Masaki Suketa <masaki.suketa@nifty.ne.jp>
 
-	* thread_pthread.c (native_cond_broadcast): ditto.
+	* ext/win32ole/win32ole.c (Init_win32ole): should not use atexit to
+	  free allocated hash table to avoid error on Cygwin.
 
-	* thread_pthread.c (struct cached_thread_entry): stop using
-	  pthread_cond_t and its functions directly.
+Wed Feb  4 15:34:25 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* thread_pthread.c (register_cached_thread_and_wait): ditto.
+	* class.c (method_entry_i, class_instance_method_list,
+	  rb_obj_singleton_methods): should not include methods of
+	  superclasses if recur is false. [ruby-dev:48854] [Bug #10826]
 
-	* thread_pthread.c (use_cached_thread): ditto.
+Wed Feb  4 16:32:40 2015  Matt Hoyle  <matt@deployable.co>
 
-Thu Aug  4 20:29:41 2011  Naohisa Goto  <ngotogenome@gmail.com>
+	* ext/bigdecimal/bigdecimal.c (VpSetPTR): fix a typo, 'expoennt'
+	  to 'exponent'.  [ruby-core:67980] [Bug #10823] [Fix GH-825]
 
-	* configure.in: when Solaris cc, use $(CC) to link shared libs.
+Wed Feb  4 15:55:38 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Aug  4 20:19:11 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* ext/sdbm/_sdbm.c: include ruby/ruby.h for PRIdPTRDIFF when a
+	  macro `DEBUG` is defined.  based on the patch by Owen Rodley in
+	  [ruby-core:67987]. [Bug #10825]
 
-	* error.c (report_bug): use a small message buffer instead of BUFSIZ.
-	  It is needed for avoiding nested SIGSEGV on Linux.
-	  Note: BUFSIZ is not proper buffer size. It's unrelated with maximum
-	  filename length. :-/
-	  [Bug #5139] [ruby-dev:44315]
+Wed Feb  4 11:12:43 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Aug  4 16:08:45 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* Makefile.in (probes.stamp): rebuild dtrace dependent objects
+	  only when `dtrace -G` modifies its input files.
 
-	* tool/rbinstall.rb (gem): install all gemspecs under lib and ext.
+Tue Feb  3 19:27:16 2015  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* tool/rbinstall.rb (Gem::Specification): may not be defined when
-	  cross-compiling and BASERUBY is 1.8.
+	* common.mk (ruby-glommed.o): dependency on $(OBJ) should be written
+	  in common.mk (in which OBJ is defined) because of Makefile include
+	  and parse order. This partly reverts r49419.
+	  [ruby-dev:48849] [Bug #10808]
 
-Thu Aug  4 11:30:36 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* Makefile.in (ruby-glommed.o): ditto.
 
-	* include/ruby/missing.h: define __syscall on OpenBSD as r32702.
+	* Makefile.in (ruby-glommed.o): remove excess $(DTRACE_OBJ) because
+	  it is included in $(OBJS) since r49451.
 
-Thu Aug  4 03:02:54 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+	* Makefile.in (probes.o): should depend on $(DTRACE_DEPENDENT_OBJS)
 
-	* tool/rbinstall.rb: use rubygems to load gemspecs, copy actual
-	  gemspecs on install rather than generate fake ones for all gems.
+Tue Feb  3 17:15:45 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Aug  4 02:45:10 2011  Kenta Murata  <mrkn@mrkn.jp>
+	* lib/mkmf.rb (try_cppflags, try_cflags, try_ldflags): get rid of
+	  interference by modifying global variables in have_devel? method.
+	  [ruby-core:67962] [Bug #10821]
 
-	* configure.in: set CXX variable to the C++ compiler that matches the
-	  C compiler specified by CC variable (e.g. use g++-4.2 for gcc-4.2).
+Tue Feb  3 15:23:58 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
-Thu Aug  4 02:21:10 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_method.c (remove_method): When remove refined
+	  method, raise a NameError if the method is not
+	  defined in refined class.
 
-	* lib/mkmf.rb (link_command): use static library only for bundled
-	  extensions.  [Bug #5147]
+	  But if the method is defined in refined class,
+	  it should keep refined method and remove original
+	  method.
 
-Thu Aug  4 02:02:10 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+	  Patch by Seiei Higa. [ruby-core:67722] [Bug #10765]
 
-	* ext/psych/psych.gemspec: installing psych as a gem.
+Tue Feb  3 14:04:47 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Aug  3 16:01:35 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* dir.c (glob_helper): obtain real name with FindFirstFile API
+	  instead of matching all entries, on Windows.
+	  [ruby-core:67954] [Bug #10819]
 
-	* util.c, include/ruby/util.h (ruby_add_suffix): remove the function.
-	  [Bug #5153] [ruby-core:38736]
+Tue Feb  3 12:26:35 2015  Katsuhiko Nishimra  <ktns.87@gmail.com>
 
-	* io.c (argf_next_argv): remove the call of above function.
+	* lib/mkmf.rb (configuration): set the default cxxflags, which is
+	  referred from the default CXXFLAGS, for extension libraries.
+	  [Fix GH-823]
 
-	* ext/-test-/add_suffix, test/-ext-/test_add_suffix.rb: remove the test
-	  extension module because this is only for testing ruby_add_suffix().
+Tue Feb  3 05:52:00 2015  Aman Gupta <ruby@tmm1.net>
 
-	* LEGAL: remove the mention about a part of util.c, because now we
-	  removed the part.
+	* gc.c (rb_objspace_free): cause rb_bug if lazy sweep is in progress
+	  during rb_objspace_free. Adds extra protection for r46340.
+	  Patch by Vicent Marti. [Bug #10768] [ruby-core:67734]
+	* gc.c (rb_objspace_call_finalizer): Ensure GC is completed after
+	  finalizers have run. We already call gc_rest() before invoking
+	  finalizers, but finalizer can allocate new objects and start new GC
+	  cycle, so we call gc_rest() again after finalizers are complete.
 
-	* io.c (argf_next_argv): now the new filename is not guaranteed to
-	  use, so should check the return value of rename(2).
+Mon Feb  2 10:51:34 2015  Ari Pollak  <ajp@aripollak.com>
 
-	* test/ruby/test_argf.rb (TestArgf#test_inplace_rename_impossible):
-	  now we expect same result with other platforms on no_safe_rename
-	  platforms (=Windows).
+	* doc/security.rdoc (Symbols): update about Symbol GC.  Symbols
+	  explicitly converted from Strings now can be collected, but
+	  reflection/metaprogramming still can cause memory flooding.
+	  [Fix GH-725]
 
-Wed Aug  3 09:18:08 2011  URABE Shyouhei  <shyouhei@ruby-lang.org>
+Sun Feb  1 13:46:52 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/xmlrpc/webrick_testing.rb (WEBrick_Testing#start_server):
-	  Like r32795, bind address should be specified.
+	* tool/rbinstall.rb (bin-comm): drop batch file installation.
+	  Windows 95 support has not been supported already.
+	  [Feature #10806]
 
-Wed Aug  3 07:46:30 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Jan 31 12:06:23 2015  Scott Francis  <scott.francis@shopify.com>
 
-	* encoding.c (enc_find): mistakenly remained !.  [Bug #5150]
+	* thread_pthread.c (reserve_stack): fix intermittent SIGBUS on
+	  Linux, by reserving the stack virtual address space at process
+	  start up so that it will not clash with the heap space.
+	  [Fix GH-822]
 
-Wed Aug  3 00:11:08 2011  Tanaka Akira  <akr@fsij.org>
+Fri Jan 30 17:28:29 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
 
-	* lib/prettyprint.rb: update document.  [ruby-core:36776]
+	* math.c (num2dbl_with_to_f): make faster when Bignum passed by
+	  direct conversion using rb_big2dbl().  [Feature #10800]
 
-Tue Aug  2 22:04:46 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Jan 29 23:30:00 2015  Kenta Murata  <mrkn@mrkn.jp>
 
-	* gc.c (init_heap): allocate sigaltstack after heaps are allocated.
-	  [ruby-dev:44315] [Bug #5139]
+	* ext/bigdecimal/bigdecimal.c (rb_rational_num): add fallback function
+	  for rubies lower than 2.2.0.
 
-	* vm.c (thread_free): use free because objspace is not ready.
+	* ext/bigdecimal/bigdecimal.c (rb_rational_den): ditto.
 
-	* vm.c (th_init): use malloc because objspace is not ready.
+	* ext/bigdecimal/extconf.rb: check the existences of struct RRational,
+	  rb_rational_num, and rb_rational_den.
 
-Tue Aug  2 20:10:16 2011  Shota Fukumori  <sorah@tubusu.net>
+	* ext/bigdecimal/bigdecimal.bundle: bump version.
 
-	* test/testunit/test_parallel.rb: pass "--ruby" option to
-	  test/testunit/tests_for_parallel/runner.rb. [Bug #5132] [ruby-dev:44303]
+Thu Jan 29 20:28:25 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Tue Aug  2 15:53:37 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* tool/make-snapshot: removed md5 digest with package information
 
-	* encoding.c (str_to_encoding): rename from to_encoding and
-	  use str_to_encindex.
+Thu Jan 29 10:41:52 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
 
-	* encoding.c (str_to_encindex): split from to_encoding.
+	* math.c (Get_Double): direct casting from Fixnum to double.
+	  [Feature #10785]
 
-	* encoding.c (rb_to_encoding): use str_to_encoding.
+Thu Jan 29 02:34:27 2015  Aaron Patterson <aaron@tenderlovemaking.com>
 
-	* encoding.c (rb_obj_encoding): don't bypass rb_encoding*.
-	  If it uses rb_encoding*, it bypass encindex. If it uses encindex,
-	  it doesn't bypass.
+	* ext/psych/lib/psych/visitors/to_ruby.rb: fix parsing hashes with
+	  instance variables when it is referenced multiple times.
+	* ext/psych/lib/psych.rb: bump version
+	* ext/psych/psych.gemspec: bump version
+	* test/psych/test_hash.rb: test for fix
 
-	* encoding.c (enc_find): add shortcut for encoding object, use
-	  str_to_encindex, and avoid bypass rb_encoding*.
+Thu Jan 29 02:06:09 2015  Eric Wong  <e@80x24.org>
 
-Tue Aug  2 12:03:16 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* thread.c (struct join_arg): restructure and make smaller
+	  (thread_join_sleep): avoid timeofday() call if forever
+	  (thread_join): pass join_arg.delay directly
+	  (rb_thread_inspect_msg): remove, inline into rb_thread_inspect
+	  (rb_thread_inspect): reduce branching and string creation
+	* thread_pthread.c (native_set_thread_name): create string directly
+	  to avoid reparsing. [Misc #10723]
 
-	* hash.c (recursive_hash): hash value of emptied hash should be
-	  equal to an empty hash.  [ruby-core:38650]
+Wed Jan 28 21:32:24 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Tue Aug  2 11:42:15 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* thread.c: Improve documentation for Thread#value
+	  [Bug #10694][ruby-core:67324][ci skip]
 
-	* parse.y (rb_enc_symname2_p): :! is valid symbol.  [Bug #5136]
+Tue Jan 27 16:04:19 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Tue Aug  2 07:33:29 2011  URABE Shyouhei  <shyouhei@ruby-lang.org>
+	* tool/redmine-backporter.rb: added `!` command.
 
-	* test/net/http/test_http.rb (TestNetHTTP_version_1_1_methods#test_timeout_during_HTTP_session):
-	  If you connect to localhost, you should listen localhost.
+Tue Jan 27 15:58:23 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* test/net/http/test_https.rb (TestNetHTTPS#test_timeout_during_SSL_handshake):
-	  ditto.
+	* tool/redmine-backporter.rb: added history feature for platforms which
+	  lack readline.
 
-Tue Aug  2 06:18:15 2011  Luis Lavena  <luislavena@gmail.com>
+Mon Jan 26 22:09:35 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* lib/rubygems/installer.rb (class Gem): Correct path check on Windows
-	  Possible fix for [Ruby 1.9 - Bug #5111]
-	* test/rubygems/test_gem_installer.rb (load Gem): ditto
+	* .gitignore: ignored temporary file with git.
 
-Mon Aug  1 20:12:03 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+Mon Jan 26 18:06:03 2015  Akinori MUSHA  <knu@iDaemons.org>
 
-	* test/ruby/test_process.rb (TestProcess#windows?): new method.
+	* misc/ruby-electric.el: Import version 2.2.2 from
+	  https://github.com/knu/ruby-electric.el.
 
-	* test/ruby/test_process.rb (TestProcess#*): use above method.
+Mon Jan 26 11:37:49 2015  Dave Stevens  <dave@crowdlab.com>
 
-	* test/ruby/test_process.rb (TestProcess#test_execopts_redirect):
-	  windows doesn't support FD_CLOEXEC.
+	* string.c (str_make_independent_expand): terminate String when
+	  moved from heap to embedded.  [Fix GH-821].
 
-Mon Aug  1 15:45:23 2011  Eric Hodel  <drbrain@segment7.net>
+Sun Jan 25 12:04:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/rake/test_rake_functional.rb:  Don't assume the binary name of
-	  ruby is "ruby".  [Ruby 1.9 - Bug #5114]
-	* test/rake/helper.rb:  ditto
+	* array.c (flatten): no need to call to_ary method on elements
+	  beyond the given level.  [ruby-core:67637] [Bug #10748]
 
-Mon Aug  1 15:31:14 2011  URABE Shyouhei  <shyouhei@ruby-lang.org>
+Sun Jan 25 00:42:24 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/io/console/test_io_console.rb (TestIO_Console#test_sync):
-	  Skip when PTY allocation failed (that's not our fault).
+	* ext/fiddle/win32/libffi.mk.tmpl: assemble without directory prefix.
+	  workaround of a bug of VC12 ml, by unak at [ruby-core:67792].
+	  [ruby-core:67789] [Bug #10780]
 
-Mon Aug  1 15:04:12 2011  URABE Shyouhei  <shyouhei@ruby-lang.org>
+Sat Jan 24 19:56:25 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/xmlrpc/test_webrick_server.rb (Test_Webrick#setup_http_server):
-	  XMLRPC::Client.new3(), when called without host: argument, tries
-	  to  connect to  a host  where "localhost"  resolves to.   On the
-	  other  hand  a  WEBrick::HTTPServer.new(), when  called  without
-	  BindAddress:  argument, tries  to listen  all the  address where
-	  getaddrinfo(AF_UNSPEC) resolves to.   This is a mismatch because
-	  "localhost" might not resolve to one of those listening sockets.
-	  We  would  better explicitly  specify  "localhost"  here and  if
-	  failed, just skip the whole test.
+	* dln_find.c (dln_find_1): search regular files only.  based on
+	  the patch by Alex Coomans in [ruby-core:67766].  [Bug #10776]
 
-Mon Aug  1 14:24:56 2011  Eric Hodel  <drbrain@segment7.net>
+Fri Jan 23 23:57:05 2015  Misumi Rize  <r@ayase-e.li>
 
-	* lib/rdoc.rb:  Import RDoc 3.9.1.  Fixes bugs in the RDoc::Markup
-	  parser.
+	* vm_insnhelper.c (vm_throw_start): search the target to break
+	  from a block with nested rescue, from the nested blocks.
+	  [ruby-core:67765] [Bug #10775] [Fix GH-820]
 
-Mon Aug  1 12:00:35 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Fri Jan 23 20:00:59 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* insns.def (concatstrings): don't use initial ASCII-8BIT string.
-	  [ruby-core:38635] [Bug #5126]
+	* marshal.c (w_object, marshal_dump): use identity tables for
+	  arbitrary VALUE keys, because of performance of FLONUM.
+	  [Bug #10761]
 
-Sun Jul 31 22:57:16 2011  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+	* marshal.c (obj_alloc_by_klass, marshal_load): ditto.
 
-	* enc/Makefile.in (ECHO1): Same as the recent fix in common.mk.
-	  ":" in a make variable replacement cause a syntax error with
-	  /usr/ccs/bin/make on Solaris.  Uses $(NULLCMD) instead.
+Fri Jan 23 17:12:33 2015  Eric Wong  <e@80x24.org>
 
-Sun Jul 31 21:16:02 2011  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+	* benchmark/bm_marshal_dump_flo.rb: new benchmark for [Bug #10761]
 
-	* complex.c (f_signbit): gcc4 on Solaris DOES have signbit but does
-	  not have it on header.
+Thu Jan 22 18:03:19 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* math.c: ditto.
+	* tool/redmine-backporter.rb (find_svn_log): use double quotes instead
+	  of single quotes because cmd.exe doesn't handle them.
 
-Sun Jul 31 21:09:04 2011  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+	* tool/redmine-backporter.rb (done): the 2nd element of matched data
+	  is the offset of the end of matched string, not length.
 
-	* common.mk (node_name.inc): Use $(Q) for consistency.
+Thu Jan 22 16:45:24 2015  Eric Wong  <e@80x24.org>
 
-	* Makefile.in (INSNS): ditto.
+	* st.c (st_numhash): mix float value for flonum
+	* hash.c (rb_any_hash): ditto
+	* benchmark/bm_hash_aref_flo.rb: new benchmark
+	* benchmark/bm_hash_ident_flo.rb: ditto
+	  [Bug #10761]
 
-Sun Jul 31 21:19:51 2011  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+Wed Jan 21 22:33:51 2015  Akinori MUSHA  <knu@iDaemons.org>
 
-	* lib/mkmf.rb (configuration:ECHO1): Same as the recent fix in
-	  common.mk.
-	  ":" in a make variable replacement cause a syntax error with
-	  /usr/ccs/bin/make on Solaris.  Uses $(NULLCMD) instead.
+	* misc/ruby-electric.el: Import version 2.2.1 from
+	  https://github.com/knu/ruby-electric.el.  Improve compatibility
+	  with and optimize for Emacs 24.4.
 
-Sun Jul 31 20:39:12 2011  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+Wed Jan 21 09:40:52 2015  Zachary Scott  <e@zzak.io>
 
-	* common.mk (ECHO1): nmake does not allow parenthesis in make variable
-	  replacement.
+	* file.c: Document other cases of missing birthtime on OS with patch
+	  provided by @sho-h similar to GH-817. [ci skip] [DOC]
 
-Sun Jul 31 23:06:57 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+Wed Jan 21 09:09:19 2015  Tanaka Akira  <akr@fsij.org>
 
-	* vm.c (check_env): print debug messages to stderr.
-	[Feature #4871] [ruby-dev:43743]
+	* NEWS: References to tickets added.
+	  [ruby-core:67701] [Bug #10760] Suggested by Zachary Scott.
 
-Sun Jul 31 22:50:23 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+Tue Jan 20 22:59:54 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* vm.c (vm_make_env_each): don't save prev env value.
-	It is no longer used. [Feature #4871] [ruby-dev:43743]
+	* tool/vcs.rb: fix the exception given remote-url of svn.
 
-	* vm.c (check_env): changed accordingly.
+Tue Jan 20 12:58:33 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Sun Jul 31 20:21:36 2011  "Yuki Sonoda (Yugui)"  <yugui@yugui.jp>
+	* tool/redmine-backporter.rb: now can change the page of `ls`.
 
-	* common.mk (ECHO1): ":" in a make variable replacement cause a syntax
-	  error with /usr/ccs/bin/make on Solaris.  Uses $(NULLCMD) instead.
+Tue Jan 20 12:28:37 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* configure.in (NULLCMD): new check.
+	* tool/redmine-backporter.rb (readline): fallback to normal gets on
+	  Windows because IO.console.getch is not always do as expected.
 
-	* Makefile.in (NULLCMD): Reflects checking in configure.
+Tue Jan 20 11:31:07 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* win32/Makefile.sub (NULLCMD): new assignment.
+	* tool/redmine-backporter.rb: update usage.
 
-Sun Jul 31 18:58:59 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jan 20 11:23:47 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* io.c (rb_pipe): pipe on cygwin can succeed half but fail
-	  half.
+	* tool/redmine-backporter.rb (mygets): to support Backspace
+	  implement gets by itself.
 
-Sun Jul 31 11:31:07 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+Tue Jan 20 02:54:11 2015  Zachary Scott  <e@zzak.io>
 
-	* vm.c: check if cfp is valid. [Bug #5083] [ruby-dev:44208]
+	* file.c: NotImplementedError is raised if birthtime is unavailable.
+	  Patch by @y-yagi san and [Fixes GH-817] [ci skip] [DOC]
 
-Sun Jul 31 09:18:28 2011  Eric Hodel  <drbrain@segment7.net>
+	* ext/pathname/pathname.c: ditto.
 
-	* lib/rdoc:  Update to RDoc 3.9.  Fixed `ri []`, stopdoc creating an
-	  object reference, nodoc for class aliases, verbatim === lines.
+Mon Jan 19 22:08:26 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Jul 31 01:29:08 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* class.c (include_modules_at): allow to prepend each module up to
+	  once for each classe.  [EXPERIMENTAL]
 
-	* io.c (rb_io_each_byte): remove unused variable e.
+Sun Jan 18 18:32:20 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Sat Jul 31 01:23:45 2011  Kenta Murata  <mrkn@mrkn.jp>
+	* math.c (math_atan2): revive documentation before r49220.
+	  http://d.hatena.ne.jp/nagachika/20150112/ruby_trunk_changes_49213_49226
 
-	* test/bigdecimal/test_bigdecimal.rb (test_version): removed.
+Sun Jan 18 15:57:32 2015  Seiei Higa  <hanachin@gmail.com>
 
-Sat Jul 30 23:19:09 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_method.c (check_definition): Module#public_method_defined?,
+	  Module#private_method_defined?, Module#protected_method_defined?
+	  should not use refinements. [ruby-core:67656] [Bug #10753]
 
-	* defs/default_gems: separate from tool/rbinstall.rb.
+Sun Jan 18 15:50:39 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Jul 30 23:14:44 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_dump.c (rb_vm_bugreport): check by configured result instead
+	  of system name for old FreeBSD.  based on a patch by Steve Wills
+	  at [ruby-core:67655].  [Bug #10752]
 
-	* io.c (rb_io_each_byte): rbuf can be refreshed during yield.
-	  [Bug #5119]
+Sun Jan 18 12:56:49 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Jul 30 22:35:50 2011  Naohisa Goto  <ngotogenome@gmail.com>
+	* Makefile.in (VPATH, NEWLINE_C), common.mk (common-srcs): make
+	  and use newline.c under enc/trans directory, not toplevel.  no
+	  longer search enc directory implicitly.
 
-	* strftime.c (NEEDS): avoid SEGV due to integer overflow in
-	  sparc-solaris2.10 and i686-linux.  fix [Bug #4456] [ruby-dev:43284]
+	* configure.in, enc/Makefile.in (BUILTIN_ENCS, BUILTIN_TRANSES):
+	  prefix respective directory names to builtin encodings and
+	  transcoder source names.
 
-Sat Jul 30 17:26:26 2011  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+Sun Jan 18 11:49:46 2015  Masaki Suketa <masaki.suketa@nifty.ne.jp>
 
-	* test/win32ole/test_win32ole_variant.rb: use skip method to skip the test.
+	* ext/win32ole/win32ole.c (ole_invoke): avoid SEGV when VT_RECORD
+	  variable is passed by reference. [ruby-dev:48803] [Bug #10697]
 
-	* test/win32ole/test_win32ole_variant_outarg.rb: ditto.
+Sat Jan 17 23:59:15 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Jul 30 14:27:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+	* ext/psych/lib/psych/visitors/yaml_tree.rb (visit_String):
+	  anchors like `\Z` are not valid inside character class.  use
+	  negative-lookahead instead.
+	  Fixes: https://github.com/tenderlove/psych/issues/221
 
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_version): version 1.1.0.
+Sat Jan 17 23:42:27 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/bigdecimal/bigdecimal.gemspec: turn into a default gem.
+	* configure.in: get rid of pattern substitution, which is not
+	  supported by ash, and ash on NetBSD parses whole source first
+	  and fails to start.  [ruby-dev:48823] [Bug #10750]
 
-	* tool/rbinstall.rb: ditto.
+Fri Jan 16 18:42:58 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Sat Jul 30 11:21:55 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* tool/redmine-backporter.rb: support adding related revisions
+	  to issues.
 
-	* vm_core.h (ALT_STACK_SIZE): use MINSIGSTKSZ*2 instead of SIGSTKSZ*2.
-	  [ruby-core:38607]
+Fri Jan 16 17:20:33 2015  Koichi Sasada  <ko1@atdot.net>
 
-Sat Jul 30 10:39:14 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	vm.c, vm_core.h: constify VM_CF_LEP, VM_CF_PREV_EP, VM_CF_BLOCK_PTR
+	and rb_vm_control_frame_block_ptr.
 
-	* vm.c (th_init): preallocate alternative stack.
-	  NoMemoryError is better than rb_bug, of course.
-	  Patch by Eric Wong. [ruby-core:38572][ruby-core:38594].
+Fri Jan 16 15:41:21 2015  Aaron Patterson <aaron@tenderlovemaking.com>
 
-	* signal.c (rb_register_sigaltstack): ditto.
+	* ext/psych/lib/psych.rb: bump version
 
-	* vm_core.h: moved ALT_STACK_SIZE definition from signal.c.
-	* vm.c (thread_free): use xfree() instead of free().
+	* ext/psych/psych.gemspec: ditto
 
-Sat Jul 30 07:20:49 2011  Tanaka Akira  <akr@fsij.org>
+Fri Jan 16 15:37:49 2015  Aaron Patterson <aaron@tenderlovemaking.com>
 
-	* ext/socket/lib/socket.rb (udp_server_sockets): unused variable
-	  removed.
-	  patch by Jeremy Evans.  [ruby-core:38600]
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: only dump hash
+	  subclasses. Thanks Joe Eli McIlvain <joe.eli.mac@gmail.com>
 
-Fri Jul 29 23:56:32 2011  Tanaka Akira  <akr@fsij.org>
+	* test/psych/test_hash.rb: test for change
 
-	* lib/securerandom.rb: call OpenSSL::Random.seed at the
-	  SecureRandom.random_bytes call.
-	  based on the patch by Masahiro Tomita.  [ruby-dev:44270]
+Fri Jan 16 15:35:21 2015  Aaron Patterson <aaron@tenderlovemaking.com>
 
-Fri Jul 29 23:53:48 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/psych/lib/psych.rb: bump version
 
-	* array.c (rb_ary_set_len): new function to set array length.
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: fix line width wrapping
+	  for long strings.  Thanks Jakub Jirutka <jakub@jirutka.cz>
 
-	* vm_eval.c (method_missing): set the length of argv array, to mark
-	  arguments.
+	* test/psych/test_string.rb: test for change
 
-	* vm_eval.c (rb_apply): get rid of too large alloca.
+Fri Jan 16 11:44:44 2015  Kazuki Tsujimoto  <kazuki@callcc.net>
 
-Fri Jul 29 20:48:39 2011  Tanaka Akira  <akr@fsij.org>
+	* eval_intern.h, vm.c, vm_eval.c, vm_insnhelper.c:
+	  change throw mechanism (not save target ep, but save target cfp).
+	  It fixes `unexpected break' bug that occurs when
+	  TracePoint#binding is called.
+	  [ruby-dev:48797] [Bug #10689]
 
-	* ext/socket/mkconstants.rb: fix typos.
+	* test/ruby/test_settracefunc.rb: add a test.
 
-Fri Jul 29 20:28:56 2011  Tanaka Akira  <akr@fsij.org>
+Thu Jan 15 23:55:15 2015  Tanaka Akira  <akr@fsij.org>
 
-	* ext/socket/mkconstants.rb: use whitespaces as a separator.
+	* io.c (rb_io_close_m): Don't raise when the IO object is closed.
+	  [ruby-core:67444] [Feature #10718]
 
-Fri Jul 29 18:59:07 2011  Tanaka Akira  <akr@fsij.org>
+Thu Jan 15 21:34:57 2015  Seiei Higa  <hanachin@gmail.com>
 
-	* ext/socket/mkconstants.rb: add documents for constants.
-	  patch by Eric Hodel.  [ruby-core:37853] [Bug #4989]
+	* proc.c (rb_obj_singleton_method): Kernel#singleton_method should
+	  not use refinements, as well as Kernel#method.
+	  [ruby-core:67603] [Bug #10744]
 
-Fri Jul 29 16:00:43 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Jan 15 10:45:04 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* configure.in (enable_pthread): use -pthread on OpenBSD without
-	  explicit option. patched by Jeremy Evans. [ruby-core:38572]
+	* array.c (rb_ary_select_bang, ary_reject_bang): linear
+	  performance.  [ruby-core:67418] [Feature #10714]
 
-Thu Jul 28 23:36:28 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+Wed Jan 14 18:06:06 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/fiddle/closure.c (callback): use rb_ary_tmp_new() instead of
-	  xmalloc() to allocate an array for arguments of callback procedure,
-	  to prevent arguments from being swept by GC. [ruby-core:38546]
-	  [Bug #4929]
+	* lib/uri/mailto.rb: raising URI::InvalidComponentError instead
+	  of failing with undefined method `split' for nil:NilClass for
+	  mailto: URIs without opaque part. [Bug #10738]
+	* test/uri/testuri.rb: Test for above
 
-Thu Jul 28 22:36:06 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+Wed Jan 14 16:45:24 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/openssl/ossl_cipher.c (ossl_cipher_initialize): Avoid possible
-	  SEGV from AES encryption/decryption. Processing data by
-	  Cipher#update without initializing key (meaningless usage of Cipher
-	  object since we don't offer a way to export a key) could cause SEGV.
+	* tool/downloader.rb (RubyGems.download): verify downloaded gem
+	  packages.  LowSecurity to allow untrusted certificates now.
 
-	  In OpenSSL, the EVP which has EVP_CIPH_RAND_KEY flag (such as DES3)
-	  allows uninitialized key, but other EVPs (such as AES) does not
-	  allow it. Calling EVP_CipherUpdate() without initializing key causes
-	  SEGV so we set the data filled with "\0" as the key by default. See
-	  #2768.
+Wed Jan 14 15:43:48 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/openssl/test_cipher.rb: test it.
+	* ext/readline/readline.c (readline_s_refresh_line): initialize
+	  before rl_refresh_line(), as some function make the internal
+	  state non-clean but rl_refresh_line() does not re-initialize it.
+	  [ruby-core:43957] [Bug #6232]
 
-Thu Jul 28 14:25:08 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+Tue Jan 13 21:59:24 2015  Michal Papis  <mpapis@gmail.com>
 
-	* lib/rubygems/user_interaction.rb (Gem::StreamUI#tty?): typo.
+	* tool/rbinstall.rb (gem): fix changing permissions of installed
+	  bundled gems.  [Fix GH-812]
 
-Thu Jul 28 12:32:53 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jan 13 21:57:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/dl/callback/mkcallback.rb (gencallback): use PTR2NUM.
+	* common.mk (distclean-local): remove autom4te.cache generated by
+	  autoconf.
 
-	* ext/dl/cptr.c (rb_dlptr_aref, rb_dlptr_aset): check NULL pointer
-	  dereference.
+	* common.mk (realclean-local): remove id sources and dummy header
+	  for dtrace.  [ruby-core:67562] [Bug #10737]
 
-	* ext/dl/cptr.c (rb_dlptr_s_to_ptr): use rb_check_funcall.
+Tue Jan 13 21:08:22 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* ext/dl/cptr.c (rb_dlptr_s_to_ptr): fix wrapping condition.
+	* ext/json, test/json: merge JSON HEAD(259dee6)
+	  separate implementation of Typed_Data macro.
+	  https://github.com/flori/json/compare/v1.8.1...v1.8.2
 
-Thu Jul 28 04:53:31 2011  Eric Hodel  <drbrain@segment7.net>
+Tue Jan 13 14:16:35 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/delegate.rb:  Move file-level documentation to the appropriate
-	  classes.
+	* test/net/http/test_http.rb: get rid of accessing DNS actually
+	  for some servers returning wrong results.
+	  [ruby-core:67454] [Bug #10721]
 
-Thu Jul 28 02:15:04 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Jan 12 23:21:57 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/dl/cfunc.c (dlcfunc_mark), ext/dl/cptr.c (dlptr_mark):
-	  workaround to mark wrapped object.  this is not a true fix,
-	  because [Bug #4929] is caused by the interface design of DL.
+	* gems/bundled_gems: update test-unit to 3.0.9.
 
-Thu Jul 28 00:28:15 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Mon Jan 12 18:35:44 2015  Eric Wong  <e@80x24.org>
 
-	* test/fileutils/test_fileutils.rb: add OpenBSD case.
-	  patched by Jeremy Evans [ruby-core:38530] see #5097
+	* numeric.c (bit_coerce): use original value for error message
+	  [ruby-core:67405] [Bug #10711]
+	* test/ruby/test_numeric.rb (test_coerce): check error message
 
-	* test/ruby/test_process.rb: ditto.
+Mon Jan 12 18:01:24 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Jul 27 22:46:59 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+	* lib/rdoc/text.rb (expand_tabs): get rid of infinite loop with
+	  CR.  should check if substitution occurred too.
+	  [ruby-dev:48813] [Bug #10732]
 
-	* test/rinda/test_rinda.rb (test_remote_array_and_hash):
-	  add local variables to protect objects from GC. [ruby-dev:44253]
-	  [Bug #5104]
+Mon Jan 12 16:45:46 2015  Seiei Higa  <hanachin@gmail.com>
 
-Wed Jul 27 17:55:54 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* vm_method.c (rb_alias): raise a NameError when creating alias to
+	  a refined method if the original method of the refined method is
+	  not defined.  [ruby-core:67523] [Bug #10731]
 
-	* include/ruby/missing.h: define __syscall if the platform has
-	  __syscall in the library but doesn't define it in headers
-	  for example Mac OS X.
+Mon Jan 12 13:53:17 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Wed Jul 27 15:39:14 2011  Eric Hodel  <drbrain@segment7.net>
+	* math.c (math_atan2): improve documentation.
+	  [Feature #10323][ruby-core:65400][ci skip]
 
-	* object.c:  Add usage documentation for BasicObject.  Based on patch
-	  by Thomas Sawyer.  [Ruby 1.9 - Bug #5067]
+Mon Jan 12 13:50:49 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Wed Jul 27 12:24:17 2011  Eric Hodel  <drbrain@segment7.net>
+	* ext/bigdecimal/bigdecimal.c: fixes documentation like labeled lists,
+	  code examples etc. [ruby-core:66730][Bug #10576][ci skip]
 
-	* lib/rubygems/uninstaller.rb:  Add missing require and update
-	  messaging to avoid confusion with uninstall --format-executable.
-	  [Ruby 1.9 - Bug #4062]
+Mon Jan 12 13:36:44 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Wed Jul 27 09:34:24 2011  Eric Hodel  <drbrain@segment7.net>
+	* lib/optparse.rb: improvements for OptionParser documentation.
+	  [misc #10608][ruby-core:66901][ci skip]
 
-	* lib/rubygems:  Update to RubyGems 1.8.6.1.
+Mon Jan 12 13:33:52 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Wed Jul 27 09:27:59 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* array.c (rb_ary_each): documented return value.
+	  [misc #10469][ruby-core:66063]
 
-	* test/openssl/test_pkcs12.rb: Add test and intermediate certificates.
-	  [ Ruby 1.9 - Feature #3793 ] [ruby-core:32088]
+Sun Jan 11 15:11:38 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Jul 27 01:05:32 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/webrick/test_utils.rb (test_create_listeners): use
+	  dynamically chosen port number, not hardcoded port number.
+	  [ruby-core:67508]
 
-	* eval_error.c (rb_print_undef_str): new function to raise
-	  NameError for undefined method.
+Sat Jan 10 12:57:12 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* load.c (rb_mod_autoload_p), object.c (rb_mod_const_get),
-	  variable.c (rb_f_untrace_var, set_const_visibility), vm_method.c
-	  (rb_mod_{remove,undef,alias}_method, set_method_visibility):
-	  remove inadvertent symbol creation.  based on the first patch by
-	  Jeremy Evans at [ruby-core:38447].  [Feature #5089]
+	* ext/zlib/zlib.c: fix document of method signatures.
+	  [Bug #10668][ruby-core:67186][ci skip]
 
-	* vm_method.c (obj_respond_to): fix the respond_to_missing? override
-	  case.  based on the patch by Jeremy Evans at [ruby-core:38417].
-	  [Feature #5072]
+Sat Jan 10 12:32:44 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* parse.y (rb_check_id): make the given name a symbol or a string.
-	  based on the second patch by Jeremy Evans at [ruby-core:38447]
+	* eval_error.c (error_print): pos and len parameters of rb_str_substr()
+	  are counted by characters, not bytes.  use rb_str_subseq() instead.
+	  [Bug #10727] [ruby-core:67473]
 
-Wed Jul 27 00:50:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+Sat Jan 10 10:58:55 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* ext/bigdecimal/lib/bigdecimal/util.rb (Rational#to_d):
-	  zero or negative precision is error.  fixes #5098.
-	  [ruby-dev:44210]
+	* complex.c: removed commented-out code.
 
-	* test/bigdecimal/test_bigdecimal_util.rb: add test for the above
-	  change.
+Sat Jan 10 10:57:19 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Wed Jul 27 00:48:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+	* rational.c: removed commented-out code.
+	  [Feature #10376][ruby-core:65643]
 
-	* ext/bigdecimal/lib/bigdecimal/util.rb (Float#to_d): modified for
-	  specifying precision.  fixes #5098.  [ruby-dev:44210]
+Sat Jan 10 10:12:15 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/bigdecimal/test_bigdecimal_util.rb: add test for the above
-	  change.
+	* array.c (rb_ary_select_bang): keep the array consistent by
+	  removing unselected values soon.  [ruby-dev:48805] [Bug #10722]
 
-Wed Jul 27 00:45:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+Fri Jan  9 23:20:04 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* ext/bigdecimal/lib/bigdecimal/util.rb (Integer#to_d): added
-	  for symmetry to BigDecimal() function with an Integer.
-	  fixes #5098.  [ruby-dev:44210]
+	* lib/rubygems:  Update to RubyGems HEAD(e53c54a).
+	* test/rubygems:  ditto.
 
-	* test/bigdecimal/test_bigdecimal_util.rb: add test for the above
-	  change.
+Fri Jan  9 11:13:01 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Jul 27 00:30:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+	* parse.y (assocs, assoc): eliminate splatting empty literal
+	  hashes.  [ruby-core:67446] [Bug #10719]
 
-	* ext/bigdecimal/lib/bigdecimal/util.rb (BigDecimal#to_d): added
-	  for adapting other Numeric subclasses.  [ruby-dev:44245]
+	* compile.c (compile_array_): support splatted hash in hash type.
 
-	* test/bigdecimal/test_bigdecimal_util.rb: test for the above change.
+Fri Jan  9 10:57:09 2015  Vit Ondruch  <vondruch@redhat.com>
 
-Wed Jul 27 00:27:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+	* configure.in (RUBY_SETJMP_TYPE): Remove superfluous semicolon
+	  which causes a syntax error with autoconf 2.63.
+	  [ruby-core:67429] [Bug #10716]
 
-	* bigdecimal/bigdecimal.c (VpDup) a new function for duplicating
-	  a BigDecimal.
+Fri Jan  9 07:23:32 2015  Aaron Patterson <aaron@tenderlovemaking.com>
 
-	* bigdecimal/bigdecimal.c (BigDecimal_new): support generating a new
-	  BigDecimal from another BigDecimal using BigDecimal global function
-	  or constructor.  [ruby-dev:44245]
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: correctly quote non-ascii
+	  letters. Thanks @jirutka for the patch.
 
-Tue Jul 26 23:33:24 2011  Igor Zubkov  <igor.zubkov@gmail.com>
+	* test/psych/test_string.rb: test for change
 
-	* array.c: Fix typo. https://github.com/ruby/ruby/pull/36
+Fri Jan  9 07:13:55 2015  Aaron Patterson <aaron@tenderlovemaking.com>
 
-Mon Jul 25 23:51:01 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+	* ext/psych/lib/psych/visitors/to_ruby.rb: call `allocate` on hash
+	  subclasses.  Fixes github.com/tenderlove/psych/issues/196
 
-	* proc.c: pre-allocate the unlinked_method_entry_list_entry struct to
-	  avoid memory allocation during GC.  based on a patch from Eric Wong.
-	  [ruby-core:38498]
+	* test/psych/test_hash.rb: test for change
 
-Mon Jul 25 23:39:33 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+Fri Jan  9 06:58:43 2015  Aaron Patterson <aaron@tenderlovemaking.com>
 
-	* test/rake/test_rake_directory_task.rb (TestRakeDirectoryTask#
-	  test_directory_win32): fixed wrong test.
+	* ext/psych/lib/psych/visitors/to_ruby.rb: revive hashes with ivars
 
-Mon Jul 25 22:36:11 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: dump hashes with ivars.
+	  Fixes github.com/psych/issues/43
 
-	* proc.c (struct METHOD), gc.c (gc_marks), vm_method.c
-	  (rb_gc_mark_unlinked_live_method_entries): fix SEGV bug.
-	  rb_method_entry_t was free'd even when the method is still on the
-	  stack if it is BMETHOD (i.e., Method#call).  This is because
-	  rb_method_entry_t is embedded in struct METHOD.  This commit
-	  separates them and marks the live method entries.
-	  See [ruby-core:38449] in detail.  fix [Bug #5047] [ruby-core:38171]
+	* test/psych/test_hash.rb: test for change
 
-Mon Jul 25 22:14:37 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+Thu Jan  8 17:05:00 2015  Seiei Higa  <hanachin@gmail.com>
 
-	* lib/xmlrpc/client.rb: Fix possible HTTP header formatting failure by
-	  'Basic' header. Long username caused the base64 String truncation in
-	  HTTP header which is not allowed. See #5046.
+	* vm_method.c (rb_method_entry): if no super class, no original
+	  method entry.  [ruby-core:67389] [Bug #10707]
 
-	* test/xmlrpc/test_webrick_server.rb: test it.
+Thu Jan  8 16:31:43 2015  Seiei Higa  <hanachin@gmail.com>
 
-Mon Jul 25 15:04:33 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+	* vm_method.c (rb_export_method): bail out if the original method
+	  is undefined when the method is refined.
+	  [ruby-core:67387] [Bug #10706]
 
-	* ext/openssl/lib/openssl.rb: End of transition period introduced by
-	  [ruby-dev:38018]. From the next version of 1.9.3, you should use
-	    require "openssl"
-	  instead of
-	    require "openssl/ssl"
-	  and
-	    require "openssl/x509"
+Thu Jan  8 12:53:44 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Jul 25 13:46:38 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+	* dir.c (glob_helper): match in case-folding only if the directory
+	  resides on a case-insensitive file system, on OSX.
+	  [ruby-core:67364] [Bug #10700]
 
-	* ext/openssl/lib/openssl/x509.rb: Cosmetic change: move definition
-	  introduced in r30152 to x509-internal.rb.
+Thu Jan  8 11:39:18 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Mon Jul 25 13:09:42 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+	* .travis.yml: Remove redundant configuration option.
+	  [fix GH-809] Patch by @gxworld
 
-	* ext/openssl/ossl_ssl.c (ossl_ssl_shutdown): Avoid randomly generated
-	  SSLError from SSLSocket just after invoking SSLSocket#close.
-	  OpenSSL's SSL_shutdown could try to send alert packet and it might
-	  set SSLerr(global error stack) as the result. It causes the next
-	  SSL read/write operation to fail by unrelated reason.
+Thu Jan  8 07:17:14 2015  Eric Wong  <e@80x24.org>
 
-	  By design, we're ignoring any error at SSL_shutdown() so we clear
-	  global error stack after SSL_shutdown is called. See #5039.
+	* lib/resolv.rb: consider ENETUNREACH as ResolvTimeout
+	  [ruby-core:67411] [Bug #10712]
 
-Sun Jul 24 20:29:53 2011  Tanaka Akira  <akr@fsij.org>
+Thu Jan  8 00:13:52 2015  Tanaka Akira  <akr@fsij.org>
 
-	* ext/socket/extconf.rb: refine the recvmsg test.
+	* lib/open3.rb: Open3 properly passes non-keyword hash args to spawn.
+	  Fixed by Josh Cheek.  [Fix GH-808]
+	  Related to [ruby-core:67347] [Bug #10699]
 
-Sun Jul 24 20:02:31 2011  Tanaka Akira  <akr@fsij.org>
+Wed Jan  7 19:19:26 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/extconf.rb: fix the recvmsg test.
+	* dir.c (dir_initialize): workaround of opendir failure at symlink
+	  directories on Windows via CIFS.
 
-Sun Jul 24 08:42:51 2011  Tanaka Akira  <akr@fsij.org>
+Wed Jan  7 18:52:50 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/extconf.rb: test recvmsg allocates file descriptors for
-	  fd passing even with MSG_PEEK.
+	* dir.c (need_normalization): not only HFS+, CIFS (SMB) is also
+	  decomposed.  [Bug #10704]
 
-	* ext/socket/ancdata.c: use the above test result.
+	* dir.c (NORMALIZE_UTF8PATH): Unicode decomposition seems to
+	  perform in an upper layer than file systems on OSX, as all path
+	  names are always decomposed regardless of file system types.
 
-Sun Jul 24 01:04:50 2011  Eric Hodel  <drbrain@segment7.net>
+Tue Jan  6 21:41:04 2015  Tanaka Akira  <akr@fsij.org>
 
-	* lib/rubygems/specification.rb:  Restore behavior of
-	  Gem::Specification#loaded.  [Ruby 1.9 - Bug #5032]
+	* time.c (timelocalw): Set tm_isdst field -1 if vtm->isdst is
+	  VTM_ISDST_INITVAL.  This bug is introduced at packing struct
+	  vtm (r45155).
+	  [ruby-core:67345] [Bug #10698] Reported by Boris Ruf.
 
-Sun Jul 24 00:05:00 2011  Jeremy Evans  <merch-redmine@jeremyevans.net>
+Tue Jan  6 03:10:54 2015  Koichi Sasada  <ko1@atdot.net>
 
-	* error.c (rb_name_error_str): new function to raise NameError
-	  with the name string but not ID.
+	* test/fiddle/test_handle.rb: fix syntax.
 
-	* object.c, proc.c, variable.c: more removal of inadvertent symbol
-	  creation.  [Feature #5079]
+Tue Jan  6 00:16:10 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Jul 23 21:14:00 2011  Tadayoshi Funaba  <tadf@dotrb.org>
+	* test/fiddle/test_handle.rb (test_NEXT): use -test-/dln/empty
+	  which is always a shared object and is not used by others.
+	  [ruby-dev:48629] [Bug #10384]
 
-	* lib/cmath.rb (cbrt): should return a real number if possible.
+Mon Jan  5 14:58:01 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Sat Jul 23 20:12:52 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+	* test/ruby/test_io.rb: added timeout for AIX environment.
+	  [ruby-core:62983][Bug #9917]
 
-	* test/rake/test_rake_functional.rb (setup): Use __FILE__ for the base
-	  directory. Current directory is not the top source directory when
-	  the building process runs on other than there.
+Sun Jan  4 22:33:33 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/rake/test_rake_rake_test_loader.rb: ditto.
+	* test/lib/test/unit.rb (ExcludesOption): add "excludes" support
+	  to test suite, for alternative implementations and platforms.
+	  [Feature #10682]
 
-	* test/rake/test_rake_task_argument_parsing.rb
-	  (test_terminal_width_using_hardcoded_80): hardcoded 80 is used
-	  when app.unix? is false.
+Sun Jan  4 22:32:42 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Jul 23 20:11:50 2011  Tadayoshi Funaba  <tadf@dotrb.org>
+	* test/lib/test/unit.rb (Test::Unit): reorder modules and merge
+	  each modules.
 
-	* ext/date/date_core.c: an issue that is same as  [ruby-dev:44071].
-	* ext/date/date_strftime.c: identical to [ruby-dev:44112].
+	* test/lib/test/unit.rb (Test::Unit): split the large class into
+	  each modules.
 
-Sat Jul 23 19:12:53 2011  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+Sun Jan  4 21:32:52 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/win32ole/test_err_in_callback.rb (test_err_in_callback):
-	  skip test if ADODB.connection is not available.
+	* parse.y (f_label): return tLABEL value as it is.
+	  [ruby-core:67315] [Bug #10693]
 
-Sat Jul 23 15:37:04 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Sun Jan  4 14:02:37 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* parse.y (rb_enc_symname_type): :$a!, @a! and so on are not
-	  valid symbols, so they should be inspected with quotes.
+	* test/lib/test/unit/parallel.rb (run): expand the file name to be
+	  loaded, so that relative paths work in parallel mode.
 
-Sat Jul 23 17:06:25 2011  Tanaka Akira  <akr@fsij.org>
+Sun Jan  4 13:36:56 2015  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
 
-	* io.c (rb_update_max_fd): validate fd.
+	* test/test_tempfile.rb: use assert_file for more descriptive message.
+	  following r49131.
 
-	* ext/socket/rubysocket.h (rsock_discard_cmsg_resource): add
-	  msg_peek_p argument for the declaration.
+Sun Jan  4 13:05:09 2015  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
 
-	* ext/socket/ancdata.c (discard_cmsg): add msg_peek_p argument.
-	  assume FreeBSD, NetBSD and MacOS X doesn't generate passed fd
-	  when MSG_PEEK.
-	  (rsock_discard_cmsg_resource): add msg_peek_p argument.
-	  (bsock_recvmsg_internal): call rsock_discard_cmsg_resource with
-	  msg_peek_p argument.
+	* string.c: improve docs for String#<=>. [ruby-core:65399][Feature #10322]
+	  Patch by gogo tanaka.
 
-	* ext/socket/unixsocket.c (unix_recv_io): call
-	  rsock_discard_cmsg_resource with msg_peek_p argument.
+Sun Jan  4 12:42:24 2015  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
 
-Sat Jul 23 14:38:28 2011  Eric Hodel  <drbrain@segment7.net>
+	* array.c: improve docs for Array#reject. [ruby-core:65324][misc #10307]
+	  Patched by Nebu Pookins.
 
-	* test/rake*: Remove dependencies on flexmock and session gems.
-	  [Ruby 1.9 - Bug #4987]
+Sun Jan  4 12:24:11 2015  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
 
-Sat Jul 23 12:19:04 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* string.c: improve docs for String#strip and variations.
+	  [ruby-core:66081][Bug #10476]
 
-	* parse.y (rb_check_id): take care of attrset ID created
-	  implicitly by local ID.  [Bug #5084]
+Sun Jan  4 09:21:04 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* parse.y (rb_check_id): conversion condition was inverse.
-	  [Bug #5084]
+	* lib/drb/drb.rb: removed unused argument. Patch by @vipulnsward
+	  [fix GH-515]
 
-Fri Jul 22 21:46:54 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Sun Jan  4 09:18:31 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* vm_insnhelper.c (vm_call_cfunc): added volatile for a workaround
-	  of cfp consistency error problem on OS X 10.7 (Lion). It's
-	  suspected llvm optimization bug.
-	  [Bug #5074] [ruby-dev:44185]
+	* lib/tempfile.rb: provide default basename parameter.
+	  [fix GH-523] Patch by @dissolved
+	* test/test_tempfile.rb: ditto.
 
-Fri Jul 22 21:18:20 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Sun Jan  4 00:43:41 2015  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
 
-	* lib/uri/generic.rb (WFKV_): unroll the loop of regexp.
+	* README.ja.md: add guidance of mailing list and bugs.r-l.o.
 
-	* lib/uri/generic.rb (URI.decode_www_form_component): ditto.
+Sat Jan  3 23:56:28 2015  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
 
-Fri Jul 22 21:06:39 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* hash.c: fix docs for Hash#invert. [ruby-core:66917] [Bug #10612]
 
-	* object.c (rb_mod_{const,cvar}_defined, rb_obj_ivar_defined):
-	  avoid inadvertent symbol creation in reflection methods.  based
-	  on a patch by Jeremy Evans at [ruby-core:38367].  [Feature #5072]
+Sat Jan  3 19:52:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* vm_method.c (rb_mod_method_defined)
-	  (rb_mod_{public,private,protected}_method_defined)
-	  (obj_respond_to): ditto.
+	* include/ruby/intern.h (rb_str_new_literal): define on all
+	  platforms, not only gcc.
 
-	* parse.y (rb_check_id): new function returns already interned ID
-	  or 0.
+Sat Jan  3 18:53:28 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Jul 22 20:44:49 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/fiddle/lib/fiddle/cparser.rb (parse_ctype): limit split word
+	  number as the rest are not used.
 
-	* parse.y (rb_is_global_id, rb_is_attrset_id): add missing
-	  predicates.
+Sat Jan  3 18:19:50 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Fri Jul 22 20:24:38 2011  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	* ext/fiddle/lib/fiddle/cparser.rb: r49110 broke Fiddle::Import with
+	  type_alias.
+	* test/fiddle/test_cparser.rb: added type_alias test for parse_ctype
+	  and parse_struct_signature.
 
-	* test/ruby/test_object.rb (TestObject#test_respond_to_missing):
-	  2nd argument of respond_to_missing? is not optional.
+Sat Jan  3 11:50:16 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Fri Jul 22 19:05:47 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/ossl.h: avoid to build failure of Windows environment.
+	* ext/openssl/ossl_ssl_session.c: ditto.
 
-	* parse.y (rb_enc_symname2_p): get rid of potential out-of-bound
-	  access.
+Sat Jan  3 11:27:46 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Fri Jul 22 13:55:59 2011  Eric Hodel  <drbrain@segment7.net>
+	* array.c: Improve performance of Array#shift. use shared instead of
+	  MEMMOVE if with arguments. Patch by @ksss [fix GH-537]
+	* test/ruby/test_array.rb: ditto.
+	* benchmark/bm_array_shift.rb: Added benchmark of GH-537 issue.
 
-	* lib/net/http.rb:  Net::HTTP#finish is used to manually close
-	  connections.  [Ruby 1.9 - Bug #5045]
+Sat Jan  3 10:38:52 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Fri Jul 22 13:51:29 2011  Eric Hodel  <drbrain@segment7.net>
+	* lib/net/http.rb: More descriptive error message when net/http fails
+	  to connect to a server. Patch by @xaviershay [fix GH-700]
+	* test/net/http/test_http.rb: ditto.
 
-	* ext/readline/readline.c:  Add examples for Readline.completion_proc=.
-	  [Ruby 1.9 - Bug #5057]
+Sat Jan  3 10:14:51 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Fri Jul 22 13:03:12 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* ext/openssl/ossl.h: Make `SSL_SESSION_cmp` use `CRYPTO_memcmp`
+	  [fix GH-591] Patch by @PiPeep
+	* ext/openssl/ossl_ssl_session.c: ditto.
 
-	* ext/openssl/ossl_hmac.c: Revert checking return type of
-	  HMAC_Init_ex as it is not compatible with OpenSSL < 1.0.0.
+Sat Jan  3 09:54:32 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Fri Jul 22 12:10:21 2011  Eric Hodel  <drbrain@segment7.net>
+	* ext/fiddle/lib/fiddle/cparser.rb: Support for Fiddle::CParser
+	  to handle rich signatures including parameter names and function
+	  pointer types. Patch by @theryan [fix GH-590]
+	* test/fiddle/test_cparser.rb: ditto.
 
-	* tool/rbinstall.rb (default gems):  Install executables into the fake
-	  gem dir for Gem.bin_path.  [#4485]
+Sat Jan  3 09:01:43 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Fri Jul 22 11:20:20 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* NEWS: added compatibility entry of r49101.
 
-	* ext/openssl/ossl_digest.c: Check return value of EVP_DigestInit_ex.
-	* ext/openssl/ossl_hmac.c: Check return value of HMAC_Init_ex.
-	  Thanks, Jared Jennings, for the patch.
-	  [ Ruby 1.9 - Bug #4944 ] [ruby-core:37670]
+Fri Jan  2 21:06:59 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Fri Jul 22 09:09:43 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+	* lib/net/http.rb (Net::HTTP#send_request): there is no response body
+	  with HEAD request. Patch by @rodrigosaito [fix GH-520]
 
-	* ext/openssl/ossl_engine.c: Avoid double free of ENGINE reference.
-	* test/openssl/test_engine.rb: Add a test for it.
-	  Thanks to Ippei Obayashi for providing the patch.
-	  [ Ruby 1.9 - Bug #5062 ] [ruby-dev:44173]
+Fri Jan  2 21:04:36 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Fri Jul 22 06:37:13 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+	* test/net/http/test_http.rb (_test_send_request__HEAD): Added
+	  failing test for send_request with HEAD method.
 
-	* lib/csv.rb: Do not modify CSV.generate's argument [ruby-core:38356]
+Fri Jan  2 18:41:20 2015  Tanaka Akira  <akr@fsij.org>
 
-Thu Jul 21 20:59:59 2011  Tanaka Akira  <akr@fsij.org>
+	* eval.c (ruby_init): Print ruby_setup() error only in debug mode.
+	  Unsuppressable error message is not a good idea.
+	  Note that the message is printed sometimes with following
+	  code (highly timing dependent, though):
+	  pid = spawn("ruby -e ''"); Process.kill(:TERM, pid)
 
-	* ext/socket/ancdata.c (discard_cmsg): workaround for MacOS X Lion.
+Fri Jan  2 16:18:44 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Thu Jul 21 20:02:11 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+	* test/ruby/test_module.rb: Refactor invalid testcase.
+	  [fix GH-472][ruby-core:59035][Bug #9240]
 
-	* thread.c (set_trace_func, thread_set_trace_func_m): reset tracing
-	  state when set_trace_func hook is removed.  This is workaround patch
-	  to force to reset tracing state that is broken by continuation call.
-	  a patch from James M. Lawrence.  [Feature #4347] [ruby-core:34998]
+Fri Jan  2 15:53:00 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* test/ruby/test_continuation.rb (class TestContinuation): add a test
-	  for above.  a patch from James M. Lawrence.
+	* lib/webrick/utils.rb: removed unused argument variable.
+	  [fix GH-356] Patch by @vipulnsward
+	* lib/webrick/server.rb: ditto.
+	* lib/webrick/ssl.rb: ditto.
+	* test/webrick/test_utils.rb: added test for WEBrick::Utils#create_listeners.
 
-Thu Jul 21 19:27:19 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+Fri Jan  2 15:35:53 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* node.c (dump_node): add today's knowledge.  "init arguments (m)" and
-	  "init arguments (p)" of compile.c indicates a Ruby code that
-	  evaluates multiple assignments that is in method or block
-	  parameters:  def foo((m1,m2), (m3,m4), *r, (p1,p2), (p3,p4)); end
-	  The former (init arguments (m)) evaluates the multiple assignments
-	  before rest argument, that are (m1,m2) and (m3,m4).  The letter
-	  (init arguments (p)) does ones after rest argument, that are
-	  (p1,p2) and (p3, p4).
+	* lib/securerandom.rb: improve syntax and grammar of documentation.
+	  [fix GH-796][ci skip] Patch by @Erol
 
-Thu Jul 21 18:11:07 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Fri Jan  2 15:10:01 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* enum.c (enum_inject): remove empty line to notify rdoc
-	  Enumerable#reduce is alias. patched by milki@github.
-	  https://github.com/ruby/ruby/pull/26
+	* test/openssl/test_ssl_session.rb (OpenSSL#test_ctx_client_session_cb):
+	  fix test failure with OpenSSL disabled SSLv3 protocol.
+	  [ruby-core:63772] [Bug #10046]
 
-Thu Jul 21 17:30:21 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Fri Jan  2 09:08:31 2015  Tanaka Akira  <akr@fsij.org>
 
-	* array.c (rb_ary_delete_at_m): use simple array literal in rdoc.
-	  patched by samuel tonini. [ruby-core:38310] [Bug #5066]
+	* lib/resolv.rb (Resolv::DNS::Label::Str#==): Check class equality.
+	  (Resolv::DNS::Name#initialize): Normalize labels as
+	  Resolv::DNS::Label::Str objects.
 
-Thu Jul 21 17:14:21 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Thu Jan  1 21:41:49 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* lib/webrick/httprequest.rb (WEBrick::HTTPRequest#each):
-	  Allow HTTP/0.9 request which doesn't has any header or body.
-	  patched by Felix Jodoin. [ruby-core:38040] [Bug #5022]
+	* doc/regexp.rdoc: fix regexp docs for whitespace character.
+	  [ruby-dev:48765] [Bug #10624]
 
-Wed Jul 20 23:02:18 2011  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+Thu Jan  1 17:50:52 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* io.c (rb_update_max_fd): remove parentheses. they are not in
-	  macro.
+	* test/ruby/test_rubyoptions.rb: try locale encoding name.
+	  [ruby-core:67109] [Bug #10643]
 
-Wed Jul 20 22:22:23 2011  Tanaka Akira  <akr@fsij.org>
+Thu Jan  1 11:07:12 2015  Eric Wong  <e@80x24.org>
 
-	* include/ruby/intern.h (rb_update_max_fd): declaration moved from
-	  internal.h.
+	* symbol.c (rb_gc_free_dsymbol): delete from global fstr hash
+	* test/ruby/test_symbol.rb (test_symbol_fstr_leak): test for bug
+	  [ruby-core:67268] [Bug #10686]
 
-	* file.c: ditto.
+Thu Jan  1 09:14:21 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* io.c: call rb_update_max_fd for each new fds.
+	* vm_args.c (keyword_hash_p): fix non-symbol keys hash.
+	  rb_extract_keywords() returns 0 not Qnil when no symbol keys is
+	  included.  [ruby-core:67264] [Bug #10685]
 
-	* process.c: ditto.
+Wed Dec 31 17:48:43 2014  Tanaka Akira  <akr@fsij.org>
 
-	* random.c: ditto.
+	* lib/resolv.rb (Resolv::DNS::Label::Str#initialize): Set encoding
+	  ASCII-8BIT before downcase.  case insensitivity of DNS labels doesn't
+	  apply non-ASCII characters.  [RFC 4343]
 
-	* ruby.c: ditto.
+Wed Dec 31 16:48:44 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/io/console/console.c: ditto.
+	* parse.y (gettable_gen): disable warnings of possible reference
+	  to a local variable defined in a past scope.
+	  [ruby-core:67162] [Bug #10661]
 
-	* ext/openssl/ossl_bio.c: ditto.
+Wed Dec 31 13:43:48 2014  Tanaka Akira  <akr@fsij.org>
 
-	* ext/pty/pty.c: ditto.
+	* lib/resolv.rb (Resolv::DNS::Name#==): Compare an array of Label:Str
+	  objects.  Label#Str#== is case-insensitive.
 
-	* ext/socket/init.c: ditto.
+Tue Dec 30 16:16:12 2014  Ben Miller  <bmiller@rackspace.com>
 
-	* ext/socket/socket.c: ditto.
+	* lib/resolv.rb (Resolv::DNS::Name#==): DNS is case-insensitive, so the
+	  comparison should be case-insensitive as well.
+	  [ruby-core:66498] [Bug #10550]
 
-	* ext/socket/ancdata.c: ditto.
+Tue Dec 30 16:03:45 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/unixsocket.c: ditto.
+	* lib/resolv.rb (Resolv::DNS::Name): names with different dots
+	  should be different.
 
-Wed Jul 20 15:16:22 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+Tue Dec 30 13:16:56 2014  Martin Duerst  <bernhard+git@lsmod.de>
 
-	* ext/dl/handle.c (dlhandle_sym): clear previous error with dlerror()
-	  before calling dlsym(). [ruby-dev:44091] [Bug #5021]
+	* lib/uri/common.rb: Initialize HTML5ASCIIINCOMPAT to empty Array
+	  to avoid error during bootstrap when encodings are not yet defined.
+	  [Bug #10678]
 
-Wed Jul 20 07:16:26 2011  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+Tue Dec 30 09:29:26 2014  Bernhard M. Wiedemann  <bernhard+git@lsmod.de>
 
-	* NEWS: mention Kernel#warn.  [ruby-core:38119] [Feature #5029]
+	* ext/dbm/dbm.c (Init_dbm): [DOC] as UNIX permissions are octal
+	  numbers, needs to be prefixed by 0.  [Fix GH-800]
 
-Tue Jul 19 16:40:45 2011  TAKANO Mitsuhiro (takano32)  <tak@no32.tk>
+Tue Dec 30 08:57:39 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* cont.c (cont_save_thread): fix missing semicolon.
+	* lib/unicode_normalize.rb: typo fix. [ci skip]
+	  [ruby-dev:48794][misc #10675]
 
-Tue Jul 19 16:25:15 2011  Tanaka Akira  <akr@fsij.org>
+Mon Dec 29 19:38:01 2014  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
-	* io.c (UPDATE_MAXFD): removed.
+	* version.h (RUBY_VERSION): 2.3.0 development has started.
 
-Tue Jul 19 16:07:45 2011  Tanaka Akira  <akr@fsij.org>
+Mon Dec 29 18:58:46 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* io.c (rb_update_max_fd): new function.
+	* re.c (unescape_nonascii): append escape sequence as-is not
+	  unescaped character, to get rid of unexpected meta-character.
+	  [ruby-core:67193] [Bug #10670]
 
-	* internal.h (rb_update_max_fd): declare rb_update_max_fd.
+Mon Dec 29 14:27:33 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* thread_pthread.c (rb_thread_create_timer_thread): update max fd when
-	  timer thread pipe is created.
+	* doc/syntax/literals.rdoc (Symbols): now Symbols created by
+	  interpolation can be garbage collected.  patch by Yihang Ho in
+	  [ruby-core:67194].  [Bug #10671]
 
-Mon Jul 18 13:36:47 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+Mon Dec 29 11:18:17 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/psych/lib/psych.rb: define a new BadAlias error class.
+	* thread.c (rb_thread_variable_get): fix dynamic symbol keys.
+	  rb_check_id() returns non-zero only for static symbols, whereas
+	  thread local variable keys can be dynamic symbols.
+	  [ruby-core:67185] [Bug #10667]
 
-	* ext/psych/lib/psych/visitors/to_ruby.rb: raise an exception when
-	  deserializing an alias that does not exist.
+Mon Dec 29 10:37:27 2014  Thiago Lewin  <thiago_lewin@yahoo.com.br>
 
-	* test/psych/test_merge_keys.rb: corresponding test.
+	* io.c (rb_f_select): [DOC] workaround for YARD doc.  [Fix GH-799]
 
-Mon Jul 18 00:00:46 2011  Shugo Maeda  <shugo@ruby-lang.org>
+	* process.c (proc_detach): [DOC] fix missing closing parenthesis.
+	  [Fix GH-799]
 
-	* ext/curses/curses.c: added the new class Curses::Pad, which
-	  supports scrolling.  patch by Eric Hodel.  [Feature #4896]
-	  [ruby-core:37206]
+Mon Dec 29 07:27:23 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Sun Jul 17 16:26:40 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/json, test/json: merge JSON HEAD(17fe8e7)
+	  https://github.com/flori/json/compare/v1.8.1...17fe8e7
 
-	* error.c (rb_check_trusted): new function to check an object is
-	  trusted.
+Sun Dec 28 23:49:37 2014  Michal Papis  <mpapis@gmail.com>
 
-	* struct.c (rb_struct_modify), time.c (time_modify): check by the
-	  above function to show proper class names.  [Bug #5036]
+	* rbinstall.rb: fix target location for installing bundled gems.
+	  install to the prepared directory instead of default Gem.dir,
+	  not to be affected GEM_HOME environment variable.  [Fix GH-798]
 
-Sun Jul 17 15:30:04 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Dec 28 18:19:28 2014  Eric Wong  <e@80x24.org>
 
-	* error.c (rb_warn_m): accept multiple args in like puts.  rdoc
-	  patch by Erik Price at [ruby-core:38119].  [Feature #5029]
+	* test/-ext-/iseq_load/test_iseq_load.rb
+	  (test_next_in_block_in_block): test using ISeq#eval
+	  (test_break_ensure): ditto
+	  [ruby-core:66988]
 
-Sun Jul 17 07:56:31 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+Sun Dec 28 16:25:12 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/openssl/test_ssl_session.rb: add PEM SSL session without TLS
-	  extensions. Use this as the default for the tests to ensure
-	  compatibility with OpenSSL 0.9.7.
-	  [ Ruby 1.9 - Bug #4961 ] [ruby-core:37726]
+	* cygwin/GNUmakefile.in (EXTOBJS): override to add resource files
+	  always.  [ruby-core:67153] [Bug #10657]
 
-Sat Jul 16 17:29:20 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Dec 28 13:54:26 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* configure.in (RUBY_UNIVERSAL_ARCH): restore arch flag.
-	  Bug #4977
+	* parse.y (f_kwrest, new_args_tail_gen): unnamed rest keyword and
+	  keywords bits arguments should be unique.  since internal IDs
+	  depend on the local variable index in the current scope, new ID
+	  should be made before popping those vtables.
+	  [ruby-core:67157] [Bug #10659]
 
-Sat Jul 16 06:27:51 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+Sat Dec 27 20:12:55 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/uri/common.rb (module): Remove optional parser argument to
-	  Kernel#URI
-	  [ruby-core:38061]
+	* ext/json/generator/generator.c (JSON_Generator_State_type): add
+	  #ifdef for backward compatibility.
 
-	* lib/uri/generic.rb (module): ditto
+	* ext/json/parser/parser.rl (JSON_Parser_type): ditto.
 
-Sat Jul 16 03:19:45 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* ext/json/generator/generator.h (ZALLOC): add fallback definition.
 
-	* win32/win32.c (is_socket, is_console): add prototypes to fix compile
-	  problem with gcc introduced at r32549.
-	  reported by Jon Forums. [Bug #5030] [ruby-core:38079]
+	* ext/json/parser/parser.h (ZALLOC): ditto.
 
-Sat Jul 16 00:55:38 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Sat Dec 27 16:54:05 2014  Tanaka Akira  <akr@fsij.org>
 
-	* time.c (time_dup): used rb_obj_class() instead of CLASS_OF().
-	  The patch is made by Kazuki Tsujimoto. [Bug #5012] [ruby-dev:44071]
+	* process.c: Unused code removed.
+	  It seems waitpid() is universally available on POSIX platforms.
 
-	* test/ruby/test_time.rb (TestTime#test_getlocal_dont_share_eigenclass):
-	  added a new test for eigenclass of time object.
+Sat Dec 27 15:08:27 2014  Eric Wong  <e@80x24.org>
 
-Fri Jul 15 19:11:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+	* vm_core.h (rb_vm_living_threads_insert): preserve order
+	  [Bug #10660] [ruby-core:67154] [ruby-core:67159]
 
-	* bignum.c (bigsub_int): add RB_GC_GUARD.  This patch is made by
-	  Makoto Kishimoto.  fixes #4223 [ruby-dev:42907]
+Sat Dec 27 13:08:20 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* bignum.c (bigadd_int): ditto.
+	* ext/socket/socket.c: improved document for YARD doc.
+	  [fix GH-795][ci skip] Patch by @tlewin
 
-Fri Jul 15 14:27:53 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+Sat Dec 27 10:11:21 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* win32/win32.c, include/ruby/win32.h (rb_w32_io_cancelable_p): renamed
-	  from rb_w32_has_cancel_io().  now it takes a parameter as fd to check
-	  the fd is console or not, because we cannot cancel console input even
-	  if we have cancel_io function.
+	* ext/tk/lib/tkextlib/tcllib/plotchart.rb: fix to invoke correct function
+	  of tcllib. Patch by @zalt50 [fix GH-787]
 
-	* io.c (WAIT_FD_IN_WIN32): call above function instead of the old one,
-	  so now we can kill the thread which calls STDIN.gets.
-	  the problem was reported by ko1 via IRC.
+Sat Dec 27 10:03:41 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-Fri Jul 15 09:10:41 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+	* tool/make-snapshot: show sha1 digest when making packages.
+	  it's request from https://github.com/ruby/www.ruby-lang.org/issues/921
+	  [fix GH-794]
 
-	* ext/digest/sha2/sha2.c (SHA256_Update, SHA512_Update): avoid Bus
-	  Error caused by unalignment access on Sparc-Solaris (and possibly on
-	  other similar environment.) This patch just do memcpy always instead
-	  of checking architecture. I see no perf drop on my 64bit env. For
-	  more details, see #4320.
+Fri Dec 26 15:32:16 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/digest/test_digest.rb: add test for unalignment access.
+	* ext/tk/tcltklib.c (ip_invoke_core): remove probably duplicate
+	  dead code.
 
-Fri Jul 15 01:51:25 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Dec 26 15:28:27 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* regint.h (PLATFORM_UNALIGNED_WORD_ACCESS): Power PC does not
-	  allow unaligned word access.
+	* ext/tk/tcltklib.c (ip_ruby_cmd_receiver_const_get): simply use
+	  rb_path2class() to get a class/module from its name.
 
-	* st.c (UNALIGNED_WORD_ACCESS): x86_64 allows unaligned word
-	  access as well as i386.
+Fri Dec 26 15:20:54 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Jul 14 12:19:34 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+	* marshal.c (w_long): append at once by w_nbyte() instead of
+	  appending byte by byte.
 
-	* ext/openssl/ossl.c (ossl_verify_cb): trap the exception from
-	  verify callback of SSLContext and X509Store and make the
-	  verification fail normally. Raising exception directly from callback
-	  causes orphan resources in OpenSSL stack. Patched by Ippei Obayashi.
-	  See #4445.
+Fri Dec 26 15:13:13 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/openssl/test_ssl.rb
-	  (test_exception_in_verify_callback_is_ignored): test it.
+	* ext/json/parser/parser.rl (unescape_unicode): check if valid
+	  before bit-or assignments.
+	  reported by Denis Denisov <denji0k AT gmail.com>.
 
-Tue Jul 12 23:41:49 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* ext/nkf/nkf-utf8/nkf.c (nkf_iconv_t): fix a missing semicolon.
+	  reported by Denis Denisov <denji0k AT gmail.com>.
 
-	* NEWS: add a description of Signal.trap change.
+	* process.c (rb_spawn_process): get rid of usage of uninitialized
+	  variable.
+	  reported by Denis Denisov <denji0k AT gmail.com>.
 
-Tue Jul 12 20:02:35 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* regexec.c (match_at): ditto.
 
-	* signal.c (reserved_signal_p): reverted a part of r32523.
-	  chikanaga noticed trap(:CHLD) has some realworld usecase.
-	* test/ruby/test_signal.rb (TestSignal#test_reserved_signal):
+	* ext/win32ole/win32ole.c (ole_wc2mb_alloc, ole_vstr2wc, ole_mb2wc):
 	  ditto.
 
-Tue Jul 12 17:12:45 2011  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* vm_method.c (rb_add_method): should not call method_added hook
-	  for undef operation. [Bug #5015]
-
-Tue Jul 12 16:58:44 2011  Shota Fukumori  <sorah@tubusu.net>
-
-	* lib/test/unit.rb(Test::Unit::Options#process_args): Fix bug.
-	  Fix process_args didn't return `@option` after r30939.
-
-Tue Jul 12 14:07:46 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* signal.c (install_sighandler): fixed a race.
-
-Tue Jul 12 13:49:32 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* signal.c (sig_trap): don't permit to change a signal handler which
-	  the interpreter reserved.
-	* signal.c (reserved_signal_p): ditto.
-	  [Bug #2616] [ruby-core:27625]
-
-	* test/ruby/test_signal.rb (TestSignal#test_reserved_signal):
-	  added a test for reserved signal.
-
-Tue Jul 12 11:58:28 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* dir.c (ruby_glob0): no need to check never-NULL pointer.
+	  reported by Denis Denisov <denji0k AT gmail.com>.
 
-	* win32/setup.mak: support x86-amd64 cross compile environment.
+	* win32/file.c (rb_file_expand_path_internal): ditto.
 
-Mon Jul 11 23:22:28 2011  Yutaka Kanemoto  <kanemoto@ruby-lang.org>
+	* win32/file.c (code_page_i): handle realloc failure.
+	  reported by Denis Denisov <denji0k AT gmail.com>.
 
-	* time.c: can't compile time.c on AIX due to missing declaration for
-	  ffs(). It is declared in strings.h on AIX.
+	* win32/stub.c (stub_sysinit): ditto.
 
-Mon Jul 11 15:54:24 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+	* fix printf format conversion specifiers.
+	  reported by Denis Denisov <denji0k AT gmail.com>.
 
-	* process.c: removed signal() macro. It's no longer used.
+Fri Dec 26 01:41:40 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Mon Jul 11 15:02:24 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* tool/rbinstall.rb: skip installing bundle gems if zlib is unavailable.
+	  [Bug #10647] [ruby-dev:48787]
 
-	* numeric.c (rb_num2ull): use FIX2LONG instead of FIX2ULONG. see
-	  rb_num2ulong(). fixed the problem of ObjectSpace._id2ref of IL32LLP64
-	  platforms, introduced at r32433.
+Fri Dec 26 01:24:42 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Mon Jul 11 05:38:05 2011  Yutaka Kanemoto  <kanemoto@ruby-lang.org>
+	* tool/downloader.rb: support old versions of ruby.
 
-	* thread_pthread.c (get_stack): need to adjust stack addr for
-	  [Bug #1813] on AIX.
+	* tool/downloader.rb: now can download gems by http if openssl is not
+	  available (this may be danger!)
 
-Mon Jul 11 01:16:27 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+Fri Dec 26 00:13:48 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* thread_pthread.c (rb_thread_create_timer_thread): removed
-	  rb_disable_interrupt()/rb_enable_interrupt().
-	* vm_core.h: ditto.
-	* process.c (static void before_exec): ditto.
-	* process.c (static void after_exec): ditto.
-	  [Bug #4765] [ruby-dev:43571]
+	* test/ruby/test_extlibs.rb: check existence of extension libraries
+	  which not depend on outer libraries. (experimental)
 
-	* eval_intern.h: removed rb_trap_restore_mask().
-	* vm_eval.c (rb_throw_obj): ditto.
-	* eval.c (setup_exception): ditto.
+Thu Dec 25 21:58:15 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* signal.c: removed trap_last_mask.
-	* signal.c (trap_restore_mask): removed.
-	* signal.c (init_sigchld): comment clarification why signal block
-	  is needed. and removed trap_last_mask operation.
-	* signal.c (trap_ensure): removed trap_last_mask operation.
+	* ext/fiddle/extconf.rb: make PIC objects if it will be linked as
+	  a shared object eventually.  [ruby-core:67128]
 
-	* signal.c (rb_disable_interrupt, rb_enable_interrupt): made
-	  static and removed sigdelset(SIGVTALRM) and sigdelset(SIGSEGV).
+Thu Dec 25 19:01:13 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* process.c (rb_syswait): removed implicit signal handler change.
+	* ext/fiddle/win32/libffi-3.2.1-mswin.patch: support mswin32.
 
-Sun Jul 10 23:49:12 2011  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+Thu Dec 25 17:30:40 2014  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* docs/NEWS-1.9.3: moved from NEWS.
+	* gc.c (wmap_final_func): fix memory size shortage when realloc wmap.
+	  Fix SEGV during finalize of WeakRef on Solaris (though the SEGV
+	  could occur on all OS/platforms). [ruby-dev:48779] [Bug #10646]
 
-	* docs/ChangeLog-1.9.3: merged ChangeLog for 1.9.3.
+Thu Dec 25 17:27:06 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* NEWS: NEWS for 1.9.4 that describes changes since 1.9.3
+	* configure.in (NET_LUID): include winsock2.h instead of windows.h.
+	  patch by Jon Forums in [ruby-core:67125].  [Bug #10640]
 
-	* ChangeLog: new ChangeLog for 1.9.4.
+Thu Dec 25 16:14:10 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Jul 10 23:30:52 2011  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+	* ext/io/console/console.c (console_dev): send the given arguments
+	  to the opened console.  as a special case, do nothing if :close
+	  is given.
 
-	* version.h (RUBY_VERSION): ruby_1_9_3 branch was forked.
+	* test/lib/leakchecker.rb (LeakChecker#check_fd_leak): close if
+	  console.
 
+For the changes before 2.2.0, see doc/ChangeLog-2.2.0
+For the changes before 2.1.0, see doc/ChangeLog-2.1.0
+For the changes before 2.0.0, see doc/ChangeLog-2.0.0
 For the changes before 1.9.3, see doc/ChangeLog-1.9.3
 For the changes before 1.8.0, see doc/ChangeLog-1.8.0
 
diff --git a/KNOWNBUGS.rb b/KNOWNBUGS.rb
index b97a08d928..35a8e75876 100644
--- a/KNOWNBUGS.rb
+++ b/KNOWNBUGS.rb
@@ -1,5 +1,7 @@
 #
-# This test file concludes tests which point out known bugs.
+# IMPORTANT: Always keep the first 7 lines (comments),
+# even if this file is otherwise empty.
+#
+# This test file includes tests which point out known bugs.
 # So all tests will cause failure.
 #
-
diff --git a/LEGAL b/LEGAL
index 65706459cd..2607f0082a 100644
--- a/LEGAL
+++ b/LEGAL
@@ -5,6 +5,37 @@ All the files in this distribution are covered under either the Ruby's
 license (see the file COPYING) or public-domain except some files
 mentioned below.
 
+ccan/build_assert/build_assert.h
+ccan/check_type/check_type.h
+ccan/container_of/container_of.h
+ccan/str/str.h
+
+  These files are licensed under the CC0.
+
+    http://creativecommons.org/choose/zero/
+
+ccan/list/list.h
+
+  This file is licensed under the MIT License.
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+
 include/ruby/oniguruma.h:
 regcomp.c:
 regenc.[ch]:
@@ -56,7 +87,7 @@ http://www.geocities.jp/kosako3/oniguruma/
 http://www.ruby-lang.org/cgi-bin/cvsweb.cgi/oniguruma/
 http://www.freebsd.org/cgi/cvsweb.cgi/ports/devel/oniguruma/
 
-   When this software is partly used or it is distributed with Ruby, 
+   When this software is partly used or it is distributed with Ruby,
    this of Ruby follows the license of Ruby.
 
 configure:
@@ -98,7 +129,7 @@ tool/config.sub:
 
 parse.c:
 
-  This file is licensed under the GPL, but is incorporated into Ruby and 
+  This file is licensed under the GPL, but is incorporated into Ruby and
   redistributed under the terms of the Ruby license, as permitted by the
   exception to the GPL below.
 
@@ -193,11 +224,11 @@ random.c
     This is a faster version by taking Shawn Cokus's optimization,
     Matthe Bellew's simplification, Isaku Wada's real version.
 
-    Before using, initialize the state by using init_genrand(seed) 
+    Before using, initialize the state by using init_genrand(seed)
     or init_by_array(init_key, key_length).
 
     Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura,
-    All rights reserved.                          
+    All rights reserved.
 
     Redistribution and use in source and binary forms, with or without
     modification, are permitted provided that the following conditions
@@ -210,8 +241,8 @@ random.c
 	 notice, this list of conditions and the following disclaimer in the
 	 documentation and/or other materials provided with the distribution.
 
-      3. The names of its contributors may not be used to endorse or promote 
-	 products derived from this software without specific prior written 
+      3. The names of its contributors may not be used to endorse or promote
+	 products derived from this software without specific prior written
 	 permission.
 
     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
@@ -231,6 +262,36 @@ random.c
     http://www.math.keio.ac.jp/matumoto/emt.html
     email: matumoto@math.keio.ac.jp
 
+vm_dump.c:procstat_vm
+
+  This file is under the new-style BSD license.
+
+    Copyright (c) 2007 Robert N. M. Watson
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+    OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+    SUCH DAMAGE.
+
+    $FreeBSD: head/usr.bin/procstat/procstat_vm.c 261780 2014-02-11 21:57:37Z jhb $
+
 vsnprintf.c:
 
   This file is under the old-style BSD license.  Note that the
@@ -364,30 +425,30 @@ missing/strlcpy.c
 
   These files are under the new-style BSD license.
 
-   Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
-   All rights reserved.
+    Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+    All rights reserved.
 
-   Redistribution and use in source and binary forms, with or without
-   modification, are permitted provided that the following conditions
-   are met:
-   1. Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
-   2. Redistributions in binary form must reproduce the above copyright
-      notice, this list of conditions and the following disclaimer in the
-      documentation and/or other materials provided with the distribution.
-   3. The name of the author may not be used to endorse or promote products
-      derived from this software without specific prior written permission.
-
-   THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
-   INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
-   AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
-   THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
-   OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-   OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-   ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+    3. The name of the author may not be used to endorse or promote products
+       derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+    INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+    AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+    THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+    EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+    OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+    WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+    OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+    ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 missing/langinfo.c
 
@@ -476,7 +537,7 @@ ext/nkf/nkf-utf8/utf8tbl.c:
   copyrighted semi-public-domain software.
 
     Copyright (C) 1987, Fujitsu LTD. (Itaru ICHIKAWA)
-       Everyone is permitted to do anything on this program 
+       Everyone is permitted to do anything on this program
        including copying, modifying, improving,
        as long as you don't try to pretend that you wrote it.
        i.e., the above copyright notice has to appear in all copies.
@@ -527,7 +588,7 @@ ext/win32ole/win32ole.c:
 
     Other modifications Copyright (c) 1997, 1998 by Gurusamy Sarathy
     <gsar@umich.edu> and Jan Dubois <jan.dubois@ibm.net>
- 
+
     You may distribute under the terms of either the GNU General Public
     License or the Artistic License, as specified in the README file
     of the Perl distribution.
diff --git a/Makefile.in b/Makefile.in
index a93a1e61df..ff475091ab 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -1,7 +1,7 @@
 SHELL = /bin/sh
 NULLCMD = @NULLCMD@
 n=$(NULLCMD)
-ECHO1 = $(V:1=@$n)
+ECHO1 = $(V:1=$n)
 RUNCMD = $(SHELL)
 CDPATH = .
 CHDIR = @CHDIR@
@@ -22,9 +22,11 @@ LD = @LD@
 YACC = bison
 PURIFY =
 AUTOCONF = autoconf
+CONFIGURE = @CONFIGURE@
 @SET_MAKE@
 MKFILES = @MAKEFILES@
 BASERUBY = @BASERUBY@
+HAVE_BASERUBY = @HAVE_BASERUBY@
 TEST_RUNNABLE = @TEST_RUNNABLE@
 CROSS_COMPILING = @CROSS_COMPILING@
 DOXYGEN = @DOXYGEN@
@@ -40,6 +42,7 @@ datadir = @datadir@
 arch = @arch@
 sitearch = @sitearch@
 sitedir = @sitedir@
+archlibdir = @archlibdir@
 ruby_version = @ruby_version@
 
 TESTUI = console
@@ -49,17 +52,20 @@ DOCTARGETS = @RDOCTARGET@ @CAPITARGET@
 
 EXTOUT = @EXTOUT@
 arch_hdrdir = $(EXTOUT)/include/$(arch)
-VPATH = $(arch_hdrdir)/ruby:$(hdrdir)/ruby:$(srcdir):$(srcdir)/enc:$(srcdir)/missing
+VPATH = $(arch_hdrdir)/ruby:$(hdrdir)/ruby:$(srcdir):$(srcdir)/missing
 
 empty =
+CC_VERSION = @CC_VERSION@
 OUTFLAG = @OUTFLAG@$(empty)
 COUTFLAG = @COUTFLAG@$(empty)
 ARCH_FLAG = @ARCH_FLAG@
-CFLAGS = @CFLAGS@ $(ARCH_FLAG)
+CFLAGS_NO_ARCH = @CFLAGS@
+CFLAGS = $(CFLAGS_NO_ARCH) $(ARCH_FLAG)
 cflags = @cflags@
 optflags = @optflags@
 debugflags = @debugflags@
 warnflags = @warnflags@ @strict_warnflags@
+cppflags = @cppflags@
 INCFLAGS = -I. -I$(arch_hdrdir) -I$(hdrdir) -I$(srcdir)
 XCFLAGS = @XCFLAGS@
 CPPFLAGS = @CPPFLAGS@ $(INCFLAGS)
@@ -86,15 +92,17 @@ RUBY_BASE_NAME=@RUBY_BASE_NAME@
 RUBY_PROGRAM_VERSION=@RUBY_PROGRAM_VERSION@
 RUBY_INSTALL_NAME=@RUBY_INSTALL_NAME@
 RUBY_SO_NAME=@RUBY_SO_NAME@
-RUBY_RELEASE_DATE=@RUBY_RELEASE_DATE@
 EXEEXT = @EXEEXT@
 LIBEXT = @LIBEXT@
 PROGRAM=$(RUBY_INSTALL_NAME)$(EXEEXT)
 RUBY = $(RUBY_INSTALL_NAME)
 MINIRUBY = @MINIRUBY@\
 	$(MINIRUBYOPT)
-RUNRUBY_COMMAND = @RUNRUBY@ $(RUNRUBYOPT)
-RUNRUBY = $(RUNRUBY_COMMAND) -- $(RUN_OPTS)
+# RUNRUBY_COMMAND:: runruby.rb or baseruby. do not append options directly
+RUNRUBY_COMMAND = @RUNRUBY_COMMAND@
+# RUNRUBY:: run ruby with RUN_OPTS which is passed to ruby
+RUNRUBY = @RUNRUBY@ $(RUN_OPTS)
+# RUNRUBY_DEBUGGER:: debugging option for runruby.rb
 RUNRUBY_DEBUGGER = --debugger='gdb -x run.gdb --quiet --args'
 XRUBY = @XRUBY@
 BTESTRUBY = @BTESTRUBY@\
@@ -106,8 +114,7 @@ INSTALL_PROGRAM = @INSTALL_PROGRAM@
 XRUBY_LIBDIR = @XRUBY_LIBDIR@
 XRUBY_RUBYLIBDIR = @XRUBY_RUBYLIBDIR@
 XRUBY_RUBYHDRDIR = @XRUBY_RUBYHDRDIR@
-
-DEFAULT_PRELUDES = $(@USE_RUBYGEMS@_GEM_PRELUDE)
+BOOTSTRAPRUBY = @BOOTSTRAPRUBY@
 
 #### End of system configuration section. ####
 
@@ -125,12 +132,26 @@ LIBRUBYARG_SHARED = @LIBRUBYARG_SHARED@
 LIBRUBY_RELATIVE = @LIBRUBY_RELATIVE@
 LIBRUBY_A_OBJS = @LIBRUBY_A_OBJS@
 
+DTRACE_REBUILD_OBJS = $(DTRACE_REBUILD:yes=$(DTRACE_DEPENDENT_OBJS))
+
+DTRACE_DEPENDENT_OBJS = array.$(OBJEXT) \
+			eval.$(OBJEXT) \
+			gc.$(OBJEXT) \
+			hash.$(OBJEXT) \
+			load.$(OBJEXT) \
+			object.$(OBJEXT) \
+			parse.$(OBJEXT) \
+			string.$(OBJEXT) \
+			symbol.$(OBJEXT) \
+			vm.$(OBJEXT)
+
 THREAD_MODEL  = @THREAD_MODEL@
 
 PREP          = @PREP@
 ARCHFILE      = @ARCHFILE@
 SETUP         =
 EXTSTATIC     = @EXTSTATIC@
+ENCSTATIC     = @ENCSTATIC@
 SET_LC_MESSAGES = env LC_MESSAGES=C
 
 MAKEDIRS      = @MKDIR_P@
@@ -154,8 +175,9 @@ VCS           = @VCS@
 VCSUP         = @VCSUP@
 DTRACE        = @DTRACE@
 DTRACE_EXT    = @DTRACE_EXT@
-DTRACE_OBJ   = @DTRACE_OBJ@
-DTRACE_GLOMMED_OBJ = @DTRACE_GLOMMED_OBJ@
+DTRACE_OBJ    = @DTRACE_OBJ@
+DTRACE_REBUILD= @DTRACE_REBUILD@
+DTRACE_GLOMMED_OBJ = $(DTRACE_REBUILD:yes=ruby-glommed.$(OBJEXT))
 
 OBJEXT        = @OBJEXT@
 ASMEXT        = S
@@ -165,10 +187,9 @@ SYMBOL_PREFIX = @SYMBOL_PREFIX@
 
 INSTALLED_LIST= .installed.list
 
-MKMAIN_CMD    = mkmain.sh
-
-NEWLINE_C     = newline.c
+NEWLINE_C     = enc/trans/newline.c
 MINIPRELUDE_C = miniprelude.c
+PRELUDE_C     = prelude.c
 RBCONFIG      = .rbconfig.time
 
 SRC_FILE      = $<
@@ -178,6 +199,10 @@ OS_DEST_FILE  = $@
 
 MESSAGE_BEGIN = @for line in
 MESSAGE_END = ; do echo "$$line"; done
+ECHO_BEGIN = @sep=''; for word in
+ECHO_END = ; do echo @ECHO_N@ "$$sep'$$word'@ECHO_C@"; sep=' '; done; echo
+
+DESTDIR       = @DESTDIR@
 
 configure_args = @configure_args@
 #### End of variables
@@ -186,15 +211,13 @@ configure_args = @configure_args@
 
 all:
 
-.DEFAULT: all
-
 # Prevent GNU make v3 from overflowing arg limit on SysV.
 .NOEXPORT:
 
 miniruby$(EXEEXT):
 		@-if test -f $@; then $(MV) -f $@ $@.old; $(RM) $@.old; fi
 		$(ECHO) linking $@
-		$(Q) $(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) $(NORMALMAINOBJ) $(MINIOBJS) $(COMMONOBJS) $(DMYEXT) $(DTRACE_OBJ) $(MAINLIBS) $(LIBS) $(OUTFLAG)$@
+		$(Q) $(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) $(NORMALMAINOBJ) $(MINIOBJS) $(COMMONOBJS) $(MAINLIBS) $(LIBS) $(OUTFLAG)$@
 
 $(PROGRAM):
 		@$(RM) $@
@@ -208,29 +231,37 @@ $(PROGRAM):
 $(LIBRUBY_A):
 		@$(RM) $@
 		$(ECHO) linking static-library $@
-		$(Q) $(AR) $(ARFLAGS) $@ $(LIBRUBY_A_OBJS) $(DMYEXT)
+		$(Q) $(AR) $(ARFLAGS) $@ $(LIBRUBY_A_OBJS) $(INITOBJS)
 		@-$(RANLIB) $@ 2> /dev/null || true
 		$(ECHO) verifying static-library $@
-		@$(PURIFY) $(CC) $(XLDFLAGS) $(MAINOBJ) $(LIBRUBY_A) $(MAINLIBS) $(EXTLIBS) $(LIBS) $(OUTFLAG)conftest$(EXEEXT) $(LDFLAGS)
+		@$(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) $(MAINOBJ) $(LIBRUBY_A) $(MAINLIBS) $(EXTLIBS) $(LIBS) $(OUTFLAG)conftest$(EXEEXT)
 		@$(RM) conftest$(EXEEXT) conftest.c
 
 $(LIBRUBY_SO):
 		@-$(PRE_LIBRUBY_UPDATE)
 		$(ECHO) linking shared-library $@
-		$(Q) $(LDSHARED) $(DLDFLAGS) $(OBJS) $(DLDOBJS) $(DTRACE_OBJ) $(SOLIBS) $(EXTSOLIBS) $(OUTFLAG)$@
-		-$(Q) $(OBJCOPY) -w -L '$(SYMBOL_PREFIX)Init_*' -L '$(SYMBOL_PREFIX)*_threadptr_*' $@
+		$(Q) $(LDSHARED) $(DLDFLAGS) $(OBJS) $(DLDOBJS) $(SOLIBS) $(EXTSOLIBS) $(OUTFLAG)$@
+		-$(Q) $(OBJCOPY) -w -L '$(SYMBOL_PREFIX)Init_*' -L '$(SYMBOL_PREFIX)ruby_static_id_*' \
+			-L '$(SYMBOL_PREFIX)*_threadptr_*' $@
 		$(Q) $(POSTLINK)
-		@-$(MINIRUBY) -e 'ARGV.each{|link| File.delete link if File.exist? link; \
+		@-$(MINIRUBY) -e 'ARGV.each{|link| File.delete link rescue nil; \
 						  File.symlink "$(LIBRUBY_SO)", link}' \
 				$(LIBRUBY_ALIASES) || true
-$(arch)-fake.rb: config.status $(srcdir)/template/fake.rb.in
-		@./config.status --file=$@:$(srcdir)/template/fake.rb.in
-		@chmod +x $@
 
 ruby_pc = @ruby_pc@
 $(ruby_pc):
 		@./config.status --file=$@:$(srcdir)/template/ruby.pc.in
 
+ruby-runner.c: template/ruby-runner.c.in
+		@./config.status --file=$@:$(srcdir)/template/$(@F).in
+
+ruby-runner$(EXEEXT): ruby-runner.c
+	$(Q) $(PURIFY) $(CC) $(CFLAGS) $(CPPFLAGS) -DRUBY_INSTALL_NAME=$(RUBY_INSTALL_NAME) $(LDFLAGS) $(LIBS) $(OUTFLAG)$@ ruby-runner.c
+
+$(RBCONFIG): $(PREP)
+
+rbconfig.rb: $(RBCONFIG)
+
 install-cross: $(arch)-fake.rb $(RBCONFIG) rbconfig.rb $(arch_hdrdir)/ruby/config.h \
 	$(LIBRUBY_A) $(LIBRUBY_SO) $(ARCHFILE)
 	$(ECHO) installing cross-compiling stuff
@@ -250,34 +281,34 @@ install-cross: $(arch)-fake.rb $(RBCONFIG) rbconfig.rb $(arch_hdrdir)/ruby/confi
 
 Makefile:	$(srcdir)/Makefile.in $(srcdir)/enc/Makefile.in
 
-$(MKFILES): config.status
-		@[ -f Makefile ] && mv Makefile Makefile.old
-		MAKE=$(MAKE) $(SHELL) ./config.status
-		@cmp Makefile Makefile.old > /dev/null 2>&1 && echo Makefile unchanged && exit 0; \
+$(MKFILES): config.status $(srcdir)/version.h
+		@[ -f $@ ] && mv $@ $@.old
+		MAKE=$(MAKE) $(SHELL) ./config.status $@
+		@cmp $@ $@.old > /dev/null 2>&1 && echo $@ unchanged && exit 0; \
 		{ \
 		    echo "all:; -@rm -f conftest.mk"; \
 		    echo "conftest.mk: .force; @echo AUTO_REMAKE"; \
 		    echo ".force:"; \
 		} > conftest.mk || exit 1; \
 		$(MAKE) -f conftest.mk | grep '^AUTO_REMAKE$$' >/dev/null 2>&1 || \
-		{ echo "Makefile updated, restart."; exit 1; }
+		{ echo "$@ updated, restart."; exit 1; }
 
 uncommon.mk: $(srcdir)/common.mk
 		sed 's/{\$$([^(){}]*)[^{}]*}//g' $< > $@
 
 .PHONY: reconfig
-reconfig-args = $(srcdir)/configure $(configure_args)
+reconfig-args = $(srcdir)/$(CONFIGURE) $(configure_args)
 config.status-args = ./config.status --recheck
-reconfig-exec-0 = exec 3>&1; exit `exec 4>&1; { "$$@" 3>&- 4>&-; echo $$? 1>&4; } | fgrep -v '(cached)' 1>&3`
+reconfig-exec-0 = test -t 1 && { CONFIGURE_TTY=yes; export CONFIGURE_TTY; }; exec 3>&1; exit `exec 4>&1; { "$$@" 3>&- 4>&-; echo $$? 1>&4; } | fgrep -v '(cached)' 1>&3 3>&- 4>&-`
 reconfig-exec-1 = set -x; "$$@"
 
-reconfig config.status:	$(srcdir)/configure $(srcdir)/enc/Makefile.in \
+reconfig config.status:	$(srcdir)/$(CONFIGURE) $(srcdir)/enc/Makefile.in \
 			$(srcdir)/include/ruby/version.h
 	@PWD= MINIRUBY="$(MINIRUBY)"; export MINIRUBY; \
 	set $(SHELL) $($@-args); $(reconfig-exec-$(V))
 
-$(srcdir)/configure: $(srcdir)/configure.in
-	$(CHDIR) $(srcdir) && exec $(AUTOCONF)
+$(srcdir)/$(CONFIGURE): $(srcdir)/configure.in $(srcdir)/aclocal.m4
+	$(CHDIR) $(srcdir) && exec $(AUTOCONF) -o $(@F)
 
 incs: id.h
 all-incs: probes.h
@@ -296,7 +327,9 @@ lex.c: defs/keywords
 	  $(CP) $(srcdir)/lex.c.blt $@; \
 	else \
 	  [ $(Q) ] && echo generating $@ || set -x; \
-	  gperf -C -p -j1 -i 1 -g -o -t -N rb_reserved_word -k1,3,$$ $? > $@.tmp && \
+	  gperf -C -P -p -j1 -i 1 -g -o -t -N rb_reserved_word -k1,3,$$ $? \
+	  | sed 's/(long)&((\(struct stringpool_t\) *\*)0)->\(stringpool_[a-z0-9]*\)/offsetof(\1, \2)/g' \
+	  > $@.tmp && \
 	  $(MV) $@.tmp $@ && \
 	  $(CP) $? $(srcdir)/defs/lex.c.src && \
 	  $(CP) $@ $(srcdir)/lex.c.blt; \
@@ -321,6 +354,22 @@ enc/unicode/name2ctype.h: enc/unicode/name2ctype.kwd
 	  $(CP) $@ $(?:.kwd=.h.blt); \
 	fi
 
+JIS_PROPS_OPTIONS = -k1,3 -7 -c -j1 -i1 -t -C -P -t --ignore-case -H onig_jis_property_hash -Q onig_jis_property_pool -N onig_jis_property
+
+enc/jis/props.h: enc/jis/props.kwd
+	$(MAKEDIRS) $(@D)
+	@set +e; \
+	if cmp -s $(?:.kwd=.src) $?; then \
+	  set -x; \
+	  $(CP) $(?:.kwd=.h.blt) $@; \
+	else \
+	  set -x; \
+	  gperf $(JIS_PROPS_OPTIONS) $? | \
+	  sed 's/(int)(long)&((\([a-zA-Z_0-9 ]*[a-zA-Z_0-9]\) *\*)0)->\([a-zA-Z0-9_]*\),/(char)offsetof(\1, \2),/g' > $@ && \
+	  $(CP) $? $(?:.kwd=.src) && \
+	  $(CP) $@ $(?:.kwd=.h.blt); \
+	fi
+
 .c.@OBJEXT@:
 	@$(ECHO) compiling $<
 	$(Q) $(CC) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) $(COUTFLAG)$@ -c $<
@@ -340,32 +389,31 @@ enc/unicode/name2ctype.h: enc/unicode/name2ctype.kwd
 .d.h:
 	@$(ECHO) translating probes $<
 	$(Q) $(DTRACE) -o $@.tmp -h -C $(INCFLAGS) -s $<
-	$(Q) sed -e 's/RUBY_/RUBY_DTRACE_/g' -e 's/PROBES_H_TMP/PROBES_H/g' -e 's/(char \*/(const char */g' -e 's/, char \*/, const char */g' $@.tmp > $@
+	$(Q) sed -e 's/RUBY_/RUBY_DTRACE_/g' -e 's/PROBES_H_TMP/RUBY_PROBES_H/' -e 's/(char \*/(const char */g' -e 's/, char \*/, const char */g' $@.tmp > $@
 	$(Q) $(RM) $@.tmp
 
 .dmyh.h:
 	@$(ECHO) copying dummy $(DEST_FILE)
 	$(Q) $(CP) $(OS_SRC_FILE) $(OS_DEST_FILE)
 
-probes.@OBJEXT@: $(srcdir)/probes.d
+probes.stamp: $(DTRACE_REBUILD_OBJS)
+	$(Q) if test -f $@ -o -f probes.$(OBJEXT); then \
+	  $(RM) $(DTRACE_REBUILD_OBJS) $@; \
+	  $(ECHO0) "rebuilding objects which were modified by \"dtrace -G\""; \
+	  $(MAKE) $(DTRACE_REBUILD_OBJS); \
+	fi
+	$(Q) touch $@
+
+probes.@OBJEXT@: $(srcdir)/probes.d $(DTRACE_REBUILD:yes=probes.stamp)
 	@$(ECHO) processing probes in object files
-	$(Q) stamp="$*.stamp"; \
-	  if test -f "$$stamp" -o -f "$@"; then \
-	  $(RM) $(DTRACE_DEPENDENT_OBJS) "$$stamp"; \
-	  for o in $(DTRACE_DEPENDENT_OBJS); do \
-	    echo "rebuilding $$o which was modified by \"dtrace -G\""; \
-	    $(MAKE) "$$o"; \
-	  done; \
-	fi; \
-	touch "$$stamp"
-	$(RM) $@
-	$(Q) $(DTRACE) -G -C $(INCFLAGS) -s $(srcdir)/probes.d -o $@ $(DTRACE_DEPENDENT_OBJS)
+	$(Q) $(RM) $@
+	$(Q) $(DTRACE) -G -C $(INCFLAGS) -s $(srcdir)/probes.d -o $@ $(DTRACE_REBUILD_OBJS)
 
 # DTrace static library hacks described here:
 # http://mail.opensolaris.org/pipermail/dtrace-discuss/2005-August/000207.html
 ruby-glommed.$(OBJEXT):
 	@$(ECHO) generating a glommed object with DTrace probes for static library
-	$(Q) $(LD) -r -o $@ $(OBJS) $(DTRACE_OBJ)
+	$(Q) $(LD) -r -o $@ $(OBJS)
 
 clean-local::
 	$(Q)$(RM) ext/extinit.c ext/extinit.$(OBJEXT) ext/ripper/y.output \
@@ -382,7 +430,7 @@ clean-ext distclean-ext realclean-ext::
 	@cd ext 2>/dev/null || exit 0; set dummy `echo "${EXTS}" | tr , ' '`; shift; \
 	test "$$#" = 0 && set .; \
 	set dummy `\
-	    find "$$@" -name Makefile -print | sed 's:^\./::;s:/Makefile$$:~:' | sort | sed 's:~$$::'; \
+	    find "$$@" -name Makefile -print | sed 's:^\./::;s:/Makefile$$::' | sort; \
 	`; shift; \
 	cd ..; \
 	for dir do \
@@ -400,24 +448,12 @@ distclean-ext realclean-ext::
 	-$(Q)$(RMDIR) ext 2> /dev/null || true
 
 clean-extout:
-	-$(Q)$(RMDIRS) $(EXTOUT) 2> /dev/null || true
 
 clean-enc distclean-enc realclean-enc:
 	@test -f "$(ENC_MK)" || exit 0; \
 	echo $(@:-enc=ing) encodings; \
 	exec $(MAKE) -f $(ENC_MK) $(MFLAGS) $(@:-enc=)
 
-clean-rdoc distclean-rdoc realclean-rdoc:
-	@echo $(@:-rdoc=ing) rdoc
-	$(Q)$(RMALL) $(RDOCOUT)
-clean-capi distclean-capi realclean-capi:
-	@echo $(@:-capi=ing) capi
-	$(Q)$(RMALL) $(CAPIOUT)
-
-clean-platform:
-	@$(RM) $(PLATFORM_D)
-	-$(Q) $(RMDIR) $(PLATFORM_DIR) 2> /dev/null || true
-
 ext/extinit.$(OBJEXT): ext/extinit.c $(SETUP)
 	$(ECHO) compiling $@
 	$(Q) $(CC) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) $(COUTFLAG)$@ -c ext/extinit.c
@@ -427,31 +463,80 @@ enc/encinit.$(OBJEXT): enc/encinit.c $(SETUP)
 up::
 	@$(CHDIR) "$(srcdir)" && LC_TIME=C exec $(VCSUP)
 
+after-update:: update-config_files common-srcs
+
 update-mspec:
 	@$(CHDIR) $(srcdir); \
 	if [ -d spec/mspec ]; then \
-	  cd spec/mspec; \
 	  echo updating mspec ...; \
+	  $(Q1:0=:) set -x; \
+	  cd spec/mspec && \
 	  exec git pull; \
 	else \
 	  echo retrieving mspec ...; \
+	  $(Q1:0=:) set -x; \
 	  exec git clone $(MSPEC_GIT_URL) spec/mspec; \
 	fi
 
 update-rubyspec: update-mspec
 	@$(CHDIR) $(srcdir); \
 	if [ -d spec/rubyspec ]; then \
-	  cd spec/rubyspec; \
 	  echo updating rubyspec ...; \
+	  $(Q1:0=:) set -x; \
+	  cd spec/rubyspec && \
 	  exec git pull; \
 	else \
 	  echo retrieving rubyspec ...; \
+	  $(Q1:0=:) set -x; \
 	  exec git clone $(RUBYSPEC_GIT_URL) spec/rubyspec; \
 	fi
 
 test-rubyspec-precheck:
 	@if [ ! -d $(srcdir)/spec/rubyspec ]; then echo No rubyspec here.  make update-rubyspec first.; exit 1; fi
 
+update-doclie:
+	@$(CHDIR) $(srcdir); \
+	if [ -d coverage/doclie ]; then \
+	  echo updating doclie ...; \
+	  $(Q1:0=:) set -x; \
+	  cd coverage/doclie && \
+	  git fetch && \
+	  exec git checkout $(DOCLIE_GIT_REF); \
+	else \
+	  echo retrieving doclie ...; \
+	  $(Q1:0=:) set -x; \
+	  exec git clone --branch $(DOCLIE_GIT_REF) $(DOCLIE_GIT_URL) coverage/doclie; \
+	fi
+
+update-simplecov-html:
+	@$(CHDIR) $(srcdir); \
+	if [ -d coverage/simplecov-html ]; then \
+	  echo updating simplecov-html ...; \
+	  $(Q1:0=:) set -x; \
+	  cd coverage/simplecov-html && \
+	  git fetch && \
+	  exec git checkout $(SIMPLECOV_HTML_GIT_REF); \
+	else \
+	  echo retrieving simplecov-html ...; \
+	  exec git clone --branch $(SIMPLECOV_HTML_GIT_REF) $(SIMPLECOV_HTML_GIT_URL) coverage/simplecov-html; \
+	fi
+
+update-simplecov:
+	@$(CHDIR) $(srcdir); \
+	if [ -d coverage/simplecov ]; then \
+	  echo updating simplecov ...; \
+	  $(Q1:0=:) set -x; \
+	  cd coverage/simplecov && \
+	  git fetch && \
+	  exec git checkout $(SIMPLECOV_GIT_REF); \
+	else \
+	  echo retrieving simplecov ...; \
+	  $(Q1:0=:) set -x; \
+	  exec git clone --branch $(SIMPLECOV_GIT_REF) $(SIMPLECOV_GIT_URL) coverage/simplecov; \
+	fi
+
+update-coverage: update-simplecov update-simplecov-html update-doclie
+
 INSNS	= opt_sc.inc optinsn.inc optunifs.inc insns.inc insns_info.inc \
 	  vmtc.inc vm.inc
 
@@ -460,3 +545,10 @@ $(INSNS): $(srcdir)/insns.def vm_opts.h \
 	  $(srcdir)/tool/instruction.rb $(srcdir)/tool/insns2vm.rb
 	$(ECHO) generating $@
 	$(Q) $(BASERUBY) -Ku $(srcdir)/tool/insns2vm.rb $(INSNS2VMOPT) $@
+
+verconf.h: $(RBCONFIG)
+
+loadpath: verconf.h
+	@$(CPP) $(XCFLAGS) $(CPPFLAGS) $(srcdir)/loadpath.c | \
+	sed -e '1,/^const char ruby_initial_load_paths/d;/;/,$$d' \
+	    -e '/^ /!d;s/ *"\\0"$$//;s/" *"//g'
diff --git a/NEWS b/NEWS
index 5e0c0585a2..be722bc9de 100644
--- a/NEWS
+++ b/NEWS
@@ -1,535 +1,404 @@
 # -*- rdoc -*-
 
-= NEWS for Ruby 2.0.0
+= NEWS for Ruby 2.3.0
 
 This document is a list of user visible feature changes made between
 releases except for bug fixes.
 
 Note that each entry is kept so brief that no reason behind or
 reference information is supplied with.  For a full list of changes
-with all sufficient information, see the ChangeLog file.
+with all sufficient information, see the ChangeLog file or Redmine
+(e.g. <tt>https://bugs.ruby-lang.org/issues/$FEATURE_OR_BUG_NUMBER</tt>)
 
-== Changes since the 1.9.3 release
+== Changes since the 2.2.0 release
 
 === Language changes
 
-* Added keyword arguments.
+* frozen-string-literal pragma:
 
-* Added %i and %I for symbol list creation (similar to %w and %W).
+  * new pragma, frozen-string-literal has been experimentally introduced.
+    [Feature #8976]
+  * besides, --enable/--disable=frozen-string-literal options also have
+    been introduced. [Feature #8976]
+  * command line options --debug or --debug=frozen-string-literal enable
+    additional debugging mode which shows created location with at frozen
+    object error (RuntimeError).
+    [Feature #11725]
 
-* Default source encoding is changed to UTF-8. (was US-ASCII)
+* safe navigation operator:
 
-* No warning for unused variables starting with '_'
+  * new method call syntax, `object&.foo', method #foo is called on
+    `object' if it is not nil.
+    this is similar to `try!' in Active Support, except:
+    * method name is syntactically required
+          obj.try! {} # valid
+          obj&. {}    # syntax error
+    * arguments are evaluated only if a call is made:
+          obj.try!(:foo, bar())  # bar() is always evaluated
+          obj&.foo(bar())        # bar() is conditionally evaluated
+    * attribute assignment is valid
+          obj&.attr += 1
+    [Feature #11537]
+
+* the did_you_mean gem:
+
+  * When a NameError or NoMethodError occurs because of a typo in the name,
+    the did_you_mean gem automatically suggests other names similar to the
+    method name.
+
+      "Yuki".starts_with?("Y")
+      # => NoMethodError: undefined method `starts_with?' for "Yuki":String
+      #    Did you mean?  start_with?
+
+* indented here document:
+
+  * new string literal, here document starts with `<<~`.
+    refer doc/syntax/literals.rdoc for more details.
+    [Feature #9098]
 
 === Core classes updates (outstanding ones only)
 
 * ARGF
-  * added method:
-    * added ARGF#codepoints and ARGF#each_codepoint, like the corresponding
-      methods for IO.
+
+  * ARGF.read_nonblock supports `exception: false' like IO#read_nonblock.
+    [Feature #11358]
 
 * Array
-  * added method:
-    * added Array#bsearch for binary search.
-  * incompatible changes:
-    * random parameter of Array#shuffle! and Array#sample now
-      will be called with one argument, maximum value.
-    * when given Range arguments, Array#values_at now returns nil for each
-      value that is out-of-range.
+
+  * Array#bsearch_index [Feature #10730]
+  * Array#dig [Feature #11643]
+
+* Comparable
+
+  * Comparable#== no longer rescues exceptions [Feature #7688]
+
+* Encoding
+
+  * new Encoding::IBM037 (alias ebcdic-cp-us; dummy)
 
 * Enumerable
-  * added method:
-    * added Enumerable#lazy method for lazy enumeration.
 
-* Enumerator
-  * added method:
-    * added Enumerator#size for lazy size evaluation.
-  * extended method:
-    * Enumerator.new accept an argument for lazy size evaluation.
-  * new class Enumerator::Lazy for lazy enumeration
+  * Enumerable#grep_v is added as inverse version of Enumerable#grep.
+    [Feature #11049]
+  * Enumerable#chunk_while [Feature #10769]
 
-* ENV
-  * aliased method:
-    * ENV.to_h is a new alias for ENV.to_hash
+* Enumerator::Lazy
 
-* Fiber
-  * incompatible changes:
-    * Fiber#resume cannot resume a fiber which invokes "Fiber#transfer".
+  * Enumerator::Lazy#grep_v [Feature #11773]
 
 * File
-  * extended method:
-    * File.fnmatch? now expands braces in the pattern if
-      File::FNM_EXTGLOB option is given.
-
-* GC
-  * improvements:
-    * introduced the bitmap marking which suppresses to copy a memory page
-      with Copy-on-Write.
-    * introduced the non-recursive marking which avoids unexpected stack overflow.
 
-* GC::Profiler
-  * added method:
-    * added GC::Profiler.raw_data which returns raw profile data for GC.
+  * File.mkfifo [Feature #11536]
+  * Add File::TMPFILE corresponding to O_TMPFILE
 
 * Hash
-  * added method:
-    * added Hash#to_h as explicit conversion method, like Array#to_a.
-  * extended method:
-    * Hash#default_proc= can be passed nil to clear the default proc.
+
+  * Hash#fetch_values [Feature #10017]
+  * Hash#dig [Feature #11643]
+  * Hash#<=, Hash#<, Hash#>=, Hash#> [Feature #10984]
+  * Hash#to_proc [Feature #11653]
 
 * IO
-  * deprecated methods:
-    * IO#lines, #bytes, #chars and #codepoints are deprecated.
+
+  * new mode flag File::SHARE_DELETE is available.
+    this flag means to permit deleting opened file on Windows, but currently
+    this affect only files opened as binary.  [Feature #11218]
+
+  * new option parameter `flags' is added.
+    this parameter is bitwise-ORed to oflags generated by normal mode argument.
+    [Feature #11253]
+
+  * IO#advise no longer raises Errno::ENOSYS in cases where it was
+    detected at build time but not available at runtime.  [Feature #11806]
 
 * Kernel
-  * added method:
-    * added Kernel#Hash conversion method like Array() or Float().
-    * added Kernel#__dir__ which returns the absolute path of the
-      directory of the file from which this method is called.
-    * added Kernel#caller_locations which returns an array of
-      frame information objects.
-  * extended method:
-    * Kernel#warn accepts multiple args in like puts.
-    * Kernel#caller accepts second optional argument `n' which specify
-      required caller size.
-    * Kernel#to_enum and enum_for accept a block for lazy size evaluation.
-  * incompatible changes:
-    * system() and exec() closes non-standard file descriptors
-      (The default of :close_others option is changed to true by default.)
-    * respond_to? against a protected method now returns false unless
-      the second argument is true.
-    * __callee__ has returned to the original behavior, and now
-      returns the called name but not the original name in an
-      aliased method.
-    * Kernel#inspect does not call #to_s anymore
-      (it used to call redefined #to_s).
-
-* LoadError
-  * added method:
-    * added LoadError#path method to return the file name that could not be
-      loaded.
+
+  * Kernel#loop, when stopped by a StopIteration exception, returns
+    what the enumerator has returned instead of nil. [Feature #11498]
 
 * Module
-  * added method:
-    * added Module#prepend which is similar to Module#include,
-      however a method in the prepended module overrides the
-      corresponding method in the prepending module.
-    * added Module.prepended and Module.prepend_features, similar
-      to included and append_features.
-    * added Module#refine, which extends a class or module locally.
-      [experimental]
-  * extended method:
-    * Module#define_method accepts a UnboundMethod from a Module.
-    * Module#const_get accepts a qualified constant string, e.g.
-      Object.const_get("Foo::Bar::Baz")
-
-* Mutex
-  * added method:
-    * added Mutex#owned? which returns the mutex is held by current
-      thread or not. [experimental]
-  * incompatible changes:
-    * Mutex#lock, Mutex#unlock, Mutex#try_lock, Mutex#synchronize
-      and Mutex#sleep are no longer allowed to be used from trap handler
-      and raise a ThreadError in such case.
-    * Mutex#sleep may spurious wakeup. Check after wakeup.
-
-* NilClass
-  * added method:
-    * added nil.to_h which returns {}
-
-* ObjectSpace::WeakMap
-  * new low level class to hold weak references to objects.
+  * Module#deprecate_constant [Feature #11398]
+
+* NameError
+  * NameError#receiver is added to take the receiver object. [Feature #10881]
+
+* Numeric
+
+  * Numeric#positive? and Numeric#negative? are added, which return
+    true when the receiver is positive and negative respectively.
+    [Feature #11151]
 
 * Proc
-  * incompatible change:
-    * removed Proc#== and #eql? so two procs are == only when they are
-      the same object.
-
-* Process
-  * added method:
-    * added getsid for getting session id (unix only).
-
-* Range
-  * added method:
-    * added Range#size for lazy size evaluation.
-    * added Range#bsearch for binary search.
-
-* RubyVM (MRI specific)
-  * added RubyVM::InstructionSequence.of to get the instruction sequence
-    from a method or a block.
-  * added RubyVM::InstructionSequence#path, #absolute_path, #label,
-    #base_label and #first_lineno to retrieve information from where
-    the instruction sequence was defined.
-  * added Environment variables to specify stack usage:
-    * RUBY_THREAD_VM_STACK_SIZE: vm stack size used at thread creation.
-      default: 128KB (32bit CPU) or 256KB (64bit CPU).
-    * RUBY_THREAD_MACHINE_STACK_SIZE: machine stack size used at thread
-      creation. default: 512KB or 1024KB.
-    * RUBY_FIBER_VM_STACK_SIZE: vm stack size used at fiber creation.
-      default: 64KB or 128KB.
-    * RUBY_FIBER_MACHINE_STACK_SIZE: machine stack size used at fiber
-      creation. default: 256KB or 256KB.
-    These variables are checked only at launched time.
-  * added constant DEFAULT_PARAMS to get above default parameters.
-
-* Signal
-  * added method:
-    * added Signal.signame which returns signal name
-
-  * incompatible changes:
-    * Signal.trap raises ArgumentError when :SEGV, :BUS, :ILL, :FPE, :VTALRM
-      are specified.
+
+  * Proc#call (and also #[], #===, #yield) are optimized.
+    Backtrace doesn't show each method (show block lines directly).
+    TracePoint also ignores these calls. [Feature #11569]
+
+* Queue (Thread::Queue)
+
+  * Queue#close is added to notice a termination. [Feature #10600]
+
+* Regexp/String: Updated Unicode version from 7.0.0 to 8.0.0
+
+* RubyVM::InstructionSequence
+  * add the following methods as a primitive tool of iseq loader.
+    See sample/iseq_loader.rb for usage.
+    Note that loader does not have verifier so it is easy to cause
+    critical problem by loading modified/broken binary data.
+    See [Feature #11788] for more details. (experimental feature)
+    * RubyVM::InstructionSequence#to_binary(extra_data = nil)
+    * RubyVM::InstructionSequence.load_from_binary(binary)
+    * RubyVM::InstructionSequence.load_from_binary_extra_data(binary)
 
 * String
-  * added method:
-    * added String#b returning a copied string whose encoding is ASCII-8BIT.
-  * change return value:
-    * String#lines now returns an array instead of an enumerator.
-    * String#chars now returns an array instead of an enumerator.
-    * String#codepoints now returns an array instead of an enumerator.
-    * String#bytes now returns an array instead of an enumerator.
+
+  * String#+@ and String#-@ are added to get mutable/frozen strings.
+    [Feature #11782]
+
+  * String.new now accepts new option parameter `encoding'.
+    [Feature #11785]
 
 * Struct
-  * added method:
-    * added Struct#to_h returning values with keys corresponding to the
-      instance variable names.
+  * Struct#dig [Feature #11688]
 
 * Thread
-  * added method:
-    * added Thread#thread_variable_get for getting thread local variables
-      (these are different than Fiber local variables).
-    * added Thread#thread_variable_set for setting thread local variables.
-    * added Thread#thread_variables for getting a list of the thread local
-      variable keys.
-    * added Thread#thread_variable? for testing to see if a particular thread
-      variable has been set.
-    * added Thread.handle_interrupt as well as instance and singleton methods
-      pending_interrupt? for asynchronous handling of exceptions
-    * added Thread#backtrace_locations which returns similar information of
-      Kernel#caller_locations.
-  * new class Thread::Backtrace::Location to hold backtrace location
-    information. These are returned by Thread#backtrace_locations and
-    Kernel#caller_locations.
-  * incompatible changes:
-    * Thread#join and Thread#value now raises a ThreadError if target thread
-      is the current or main thread.
-
-* Time
-  * change return value:
-    * Time#to_s now returns US-ASCII encoding instead of BINARY.
-
-* TracePoint
-  * new class. This class is replacement of set_trace_func.
-    Easy to use and efficient implementation.
-
-* toplevel
-  * added method:
-    * added main.define_method which defines a global function.
-    * added main.using, which imports refinements into the current file or
-      eval string. [experimental]
+  * Thread#name, Thread#name= are added to handle thread names [Feature #11251]
 
 === Core classes compatibility issues (excluding feature bug fixes)
 
-* Array#values_at
-
-  See above.
+* Array
+  * Array#select!, Array#keep_if, Array#reject!, and Array#delete_if
+    no longer changes the receiver array instantly every time the
+    block is called.  [Feature #10714]
 
-* String#lines
-* String#chars
-* String#codepoints
-* String#bytes
+  * Array#flatten and Array#flatten! no longer try to call #to_ary
+    method on elements beyond the given level.  [Bug #10748]
 
-  These methods no longer return an Enumerator, although passing a
-  block is still supported for backwards compatibility.
+  * Array#inspect doesn't raise error even if its content returns
+    a string which is not compatible with Encoding.default_external
+    as inspected result. [Feature #11801]
 
-  Code like str.lines.with_index(1) { |line, lineno| ... } no longer
-  works because str.lines returns an array.  Replace lines with
-  each_line in such cases.
+* Enumerable
+  * Enumerable#chunk and Enumerable#slice_before no longer takes the
+    initial_state argument.  [Feature #10958]
+    Use a local variable instead to maintain a state.
 
-* IO#lines
-* IO#chars
-* IO#codepoints
-* IO#bytes
-* ARGF#lines
-* ARGF#chars
-* ARGF#bytes
-* StringIO#lines
-* StringIO#chars
-* StringIO#codepoints
-* StringIO#bytes
-* Zlib::GzipReader#lines
-* Zlib::GzipReader#bytes
+* File::Stat
+  * On Windows File::Stat#ino always returned 0, but now returns
+    BY_HANDLE_FILE_INFORMATION.nFileIndexHigh/Low.  [Feature #11216]
 
-  These methods are deprecated in favor of each_line, each_byte,
-  each_char and each_codepoint.
+* Hash
+  * Hash#inspect doesn't raise error even if its content returns
+    a string which is not compatible with Encoding.default_external
+    as inspected result. [Feature #11801]
 
-* Proc#==
-* Proc#eql?
+* IO
+  * IO#close doesn't raise when the IO object is closed.  [Feature #10718]
+  * IO#each_codepoint raises an exception at incomplete character
+    before EOF when conversion takes place.  [Bug #11444]
 
-  These methods were removed. Two procs are == only when they are
-  the same object.
+* Module
+  * Module#define_method and Object.define_singleton_method now
+    require method body, Proc, Method, or a block, and raise
+    ArgumentError if no block is given directly.  [Bug #11283]
 
-* Fixnum
-* Bignum
-* Float
+* pack/unpack (Array/String)
+  * j and J directives for pointer width integer type.  [Feature #11215]
 
-  Fixnums, Bignums and Floats are frozen.
 
-* Signal.trap
+=== Stdlib updates (outstanding ones only)
 
-  See above.
+* Logger
 
-* Merge Onigmo.
-  https://github.com/k-takata/Onigmo
+  * Logger#level= now supports symbol and string levels such as :debug, :info,
+    :warn, :error, :fatal (case insensitive) [Feature #11695]
+  * Logger#reopen is added to reopen a log device. [Feature #11696]
 
-* The :close_others option is true by default for system() and exec().
-  Also, the close-on-exec flag is set by default for all new file descriptors.
-  This means file descriptors doesn't inherit to spawned process unless
-  explicitly requested such as system(..., fd=>fd).
+* io/wait
+  * IO#wait_readable no longer checks FIONREAD, it may be used for
+    non-bytestream IO such as listen sockets.
+
+* Net::FTP
+  * Net::FTP#mlst is added.
+  * Net::FTP#mlsd is added.
+
+* nkf
+  * Merge nkf 2.1.4.
+
+* ObjectSpace (objspace)
+  * ObjectSpace.count_symbols is added.
+  * ObjectSpace.count_imemo_objects is added.
+  * ObjectSpace.internal_class_of is added.
+  * ObjectSpace.internal_super_of is added.
+
+* OpenSSL
+  * OpenSSL::SSL::SSLSocket#accept_nonblock and
+    OpenSSL::SSL::SSLSocket#connect_nonblock supports `exception: false`.
+    [Feature #10532]
+
+* Pathname
+  * Pathname#descend and Pathname#ascend supported blockless form.
+    [Feature #11052]
+
+* Socket
+  * Socket#connect_nonblock, Socket#accept_nonblock,
+    TCPServer#accept_nonblock, UNIXServer#accept_nonblock,
+    BasicSocket#recv_nonblock, BasicSocket#recvmsg_nonblock,
+    BasicSocket#sendmsg_nonblock all support `exception: false` to return
+    :wait_readable or :wait_writable symbols instead of raising
+    IO::WaitReadable or IO::WaitWritable exceptions
+    [Feature #10532] [Feature #11229]
+  * BasicSocket#recv and BasicSocket#recv_nonblock allow an output
+    String buffer argument like IO#read and IO#read_nonblock to reduce
+    GC overhead [Feature #11242]
+
+* StringIO
+  * In read-only mode, StringIO#set_encoding no longer sets the encoding
+    of its buffer string.  Setting the encoding of the string directly
+    without StringIO#set_encoding may cause unpredictable behavior now.
+    [Bug #11827]
+
+* timeout
+  * Object#timeout is now warned as deprecated when called.
 
-* Kernel#respond_to? against a protected method now returns false
-  unless the second argument is true.
+=== Stdlib compatibility issues (excluding feature bug fixes)
 
-* Kernel#respond_to_missing?
-* Kernel#initialize_clone
-* Kernel#initialize_dup
+* ext/coverage/coverage.c
+  * Coverage.peek_result: new method to allow coverage to be captured without
+    stopping the coverage tool.  [Feature #10816]
 
-  These methods are now private.
+* Fiddle
+  * Fiddle::Function#call releases the GVL.  [Feature #11607]
 
-* Thread#join, Thread#value
+* io-console
+  * Update to io-console 0.4.5, and change the license to BSD 2-clause
+    "Simplified" License.
 
-  See above.
+* lib/base64.rb
+  * Base64.urlsafe_encode64: added a "padding" option to suppress
+    the padding character ("=").  [Feature #10740]
+  * Base64.urlsafe_decode64: now it accepts not only correctly-padded
+    input but also unpadded input.  [Feature #10740]
 
-* Mutex#lock, Mutex#unlock, Mutex#try_lock, Mutex#synchronize and Mutex#sleep
+* lib/drb/drb.rb
+  * removed unused argument. https://github.com/ruby/ruby/pull/515
 
-  See above.
+* lib/matrix.rb
+  * Add Vector#round. https://github.com/ruby/ruby/pull/802
 
-=== Stdlib updates (outstanding ones only)
+* lib/webrick/utils.rb
+  * removed unused argument. https://github.com/ruby/ruby/pull/356
 
-* cgi
-  * Add HTML5 tag maker.
-  * CGI#header has been renamed to CGI#http_header and
-    aliased to CGI#header.
-  * When HTML5 tagmaker called, overwrite CGI#header,
-    CGI#header function is to create a <header> element.
+* Net::FTP
+  * Connections are in passive mode per default now.  The default mode can
+    be changed by Net::FTP.default_passive=.  [Feature #11612]
 
-* CSV
-  * Removed CSV::dump and CSV::load to protect users from dangerous
-    serialization vulnerability
+* Net::HTTP
+  * default value of Net::HTTP#open_timeout is now 60 (was nil).
 
-* iconv
-  * Iconv has been removed. Use String#encode instead.
+* Net::Telnet
+  * Net::Telnet is extracted to net-telnet gem. It's unmaintain code.
+    [Feature #11083]
 
-* io/console
-  * new methods:
-    * added IO#cooked which sets the terminal to cooked mode within the given block.
-    * added IO#cooked! which sets the terminal to cooked.
-  * extended method:
-    * IO#raw, IO#raw!, and IO#getch accept keyword arguments, :min and :time.
+* Psych
+  * Updated to Psych 2.0.17
 
-* io/wait
-  * new features:
-    * added IO#wait_writable method.
-    * added IO#wait_readable method as alias of IO#wait.
-
-* json
-  * updated to 1.7.7.
-
-* net/http
-  * new features:
-    * Proxies are now automatically detected from the http_proxy environment
-      variable.  See Net::HTTP::new for details.
-    * gzip and deflate compression are now requested for all requests by
-      default.  See Net::HTTP for details.
-    * SSL sessions are now reused across connections for a single instance.
-      This speeds up connection by using a previously negotiated session.
-    * Requests may be created from a URI which sets the request_uri and host
-      header of the request (but does not change the host connected to).
-    * Responses contain the URI requested which allows easier implementation of
-      redirect following.
-  * new methods:
-    * Net::HTTP#local_host
-    * Net::HTTP#local_host=
-    * Net::HTTP#local_port
-    * Net::HTTP#local_port=
-  * extended method:
-    * Net::HTTP#connect uses local_host and local_port if specified.
-
-* net/imap
-  * new methods:
-    * Net::IMAP.default_port
-    * Net::IMAP.default_imap_port
-    * Net::IMAP.default_tls_port
-    * Net::IMAP.default_ssl_port
-    * Net::IMAP.default_imaps_port
-
-* objspace
-  * new method:
-    * ObjectSpace.reachable_objects_from(obj)
-
-* openssl
-  * Consistently raise an error when trying to encode nil values. All instances
-    of OpenSSL::ASN1::Primitive now raise TypeError when calling to_der on an
-    instance whose value is nil. All instances of OpenSSL::ASN1::Constructive
-    raise NoMethodError in the same case. Constructing such values is still
-    permitted.
-  * TLS 1.1 & 1.2 support by setting OpenSSL::SSL::SSLContext#ssl_version to
-    :TLSv1_2, :TLSv1_2_server, :TLSv1_2_client or :TLSv1_1, :TLSv1_1_server
-    :TLSv1_1_client. The version being effectively used can be queried
-    with OpenSSL::SSL#ssl_version. Furthermore, it is also possible to
-    blacklist the new TLS versions with OpenSSL::SSL:OP_NO_TLSv1_1 and
-    OpenSSL::SSL::OP_NO_TLSv1_2.
-  * Added OpenSSL::SSL::SSLContext#renegotiation_cb. A user-defined callback
-    may be set which gets called whenever a new handshake is negotiated. This
-    also allows to programmatically decline (client) renegotiation attempts.
-  * Support for "0/n" splitting of records as BEAST mitigation via
-    OpenSSL::SSL::OP_DONT_INSERT_EMPTY_FRAGMENTS.
-  * The default options for OpenSSL::SSL::SSLContext have changed to
-    OpenSSL::SSL::OP_ALL & ~OpenSSL::SSL::OP_DONT_INSERT_EMPTY_FRAGMENTS
-    instead of OpenSSL::SSL::OP_ALL only. This enables the countermeasure for
-    the BEAST attack by default.
-  * OpenSSL requires passwords for decrypting PEM-encoded files to be at least
-    four characters long. This led to awkward situations where an export with
-    a password with fewer than four characters was possible, but accessing the
-    file afterwards failed. OpenSSL::PKey::RSA, OpenSSL::PKey::DSA and
-    OpenSSL::PKey::EC therefore now enforce the same check when exporting a
-    private key to PEM with a password - it has to be at least four characters
-    long.
-  * SSL/TLS support for the Next Protocol Negotiation extension. Supported
-    with OpenSSL 1.0.1 and higher.
-  * OpenSSL::OPENSSL_FIPS allows client applications to detect whether OpenSSL
-    is FIPS-enabled. OpenSSL.fips_mode= allows turning on and off FIPS mode
-    manually in order to adapt to situations where FIPS mode would be an
-    explicit requirement.
-  * Authenticated Encryption with Associated Data (AEAD) is supported via
-    Cipher#auth_data= and Cipher#auth_tag/Cipher#auth_tag=.
-    Currently (OpenSSL 1.0.1c), only GCM mode is supported.
-
-* ostruct
-  * new methods:
-    * OpenStruct#[], []=
-    * OpenStruct#each_pair
-    * OpenStruct#eql?
-    * OpenStruct#hash
-    * OpenStruct#to_h converts the struct to a hash.
-  * extended method:
-    * OpenStruct.new also accepts an OpenStruct / Struct.
-
-* pathname
-  * extended method:
-    * Pathname#find returns an enumerator if no block is given.
-
-* rake
-  * rake has been updated to version 0.9.5.
-
-    This version is backwards-compatible with previous rake versions and
-    contains many bug fixes.
-
-    See
-    http://rake.rubyforge.org/doc/release_notes/rake-0_9_5_rdoc.html for a list
-    of changes in rake 0.9.3, 0.9.4 and 0.9.5.
+* Rake
+  * Rake is removed from stdlib.  [Feature #11025]
 
 * RDoc
-  * RDoc has been updated to version 4.0
+  * Updated to RDoc 4.2.1.  For full release notes see:
 
-    This version is largely backwards-compatible with previous rdoc versions.
-    The most notable change is an update to the ri data format (ri data must
-    be regenerated for gems shared across rdoc versions).  Further API changes
-    are internal and won't affect most users.
+    https://github.com/rdoc/rdoc/blob/master/History.rdoc#421--2015-12-22
 
-    Notable changes include:
+* RubyGems
+  * Updated to RubyGems 2.5.1.  For full release notes see:
 
-    * Page support for ri.  Try `ri ruby:` for a list of pages in ruby or
-      `ri ruby:syntax/literals` for the syntax documentation for literals.
+    http://docs.seattlerb.org/rubygems/History_txt.html#label-2.5.0+-2F+2015-11-03
+    and
+    http://docs.seattlerb.org/rubygems/History_txt.html#label-2.5.1+-2F+2015-12-10
 
-      This also works for gems such as `ri rspec:README` for the rspec gem's
-      README file.
-    * Markdown support.  See ri RDoc::Markdown for details.
+=== Built-in global variables compatibility issues
 
-    See https://github.com/rdoc/rdoc/blob/master/History.rdoc for a full list
-    of changes in rdoc 4.0.
+* $SAFE
+  * $SAFE=2 and $SAFE=3 are obsolete.  If $SAFE is set to 2 or larger,
+    an ArgumentError is raised.  [Feature #5455]
 
-* resolv
-  * new methods:
-    * Resolv::DNS#timeouts=
-    * Resolv::DNS::Config#timeouts=
+=== C API updates
 
-* rexml
-  * REXML::Document#write supports Hash arguments.
-  * REXML::Document#write supports new :encoding option. It changes
-    XML document encoding. Without :encoding option, encoding in
-    XML declaration is used for XML document encoding.
+* rb_define_class_id_under() now raises a TypeError exception when the
+  class is already defined but its superclass does not match the given
+  superclass, as well as definitions in ruby level.
 
-* RubyGems
-  * Updated to 2.0.3.  See
-    http://rubygems.rubyforge.org/rubygems-update/History_txt.html#label-2.0.3+%2F+2012-03-1
-    for release notes.
-
-  * Updated to 2.0.0
-
-    RubyGems 2.0.0 features the following improvements:
-
-    * Improved support for default gems shipping with ruby 2.0.0+
-    * A gem can have arbitrary metadata through Gem::Specification#metadata
-    * `gem search` now defaults to --remote and is anchored like gem list.
-    * Added --document to replace --rdoc and --ri.  Use --no-document to
-      disable documentation, --document=rdoc to only generate rdoc.
-    * Only ri-format documentation is generated by default.
-    * `gem server` uses RDoc::Servlet from RDoc 4.0 to generate HTML
-      documentation.
-
-    For an expanded list of updates and bug fixes see:
-    https://github.com/rubygems/rubygems/blob/master/History.txt
-
-* shellwords
-  * Shellwords#shellescape now stringifies the given object using to_s.
-  * Shellwords#shelljoin accepts non-string objects in the given
-    array, each of which is stringified using to_s.
-
-* stringio
-  * deprecated methods:
-    * StringIO#lines, #bytes, #chars and #codepoints are deprecated.
-
-* syslog
-  * Added Syslog::Logger which provides a Logger API atop Syslog.
-  * Syslog::Priority, Syslog::Level, Syslog::Option and Syslog::Macros
-    are introduced for easy detection of available constants on a
-    running system.
-
-* tmpdir
-  * incompatible changes:
-    * Dir.mktmpdir uses FileUtils.remove_entry instead of
-      FileUtils.remove_entry_secure.  This means that applications should not
-      change the permission of the created temporary directory to make
-      accessible from other users.
-
-* yaml
-  * Syck has been removed.  YAML now completely depends on libyaml being
-    installed.
-  * libyaml is now bundled with ruby, for cases where the library is not
-    installed locally.
-
-* zlib
-  * Added streaming support for Zlib::Inflate and Zlib::Deflate.  This allows
-    processing of a stream without the use of large amounts of memory.
-  * Added support for the new deflate strategies Zlib::RLE and Zlib::FIXED.
-  * Zlib streams are now processed without the GVL.  This allows gzip, zlib and
-    deflate streams to be processed in parallel.
-  * deprecated methods:
-    * Zlib::GzipReader#lines and #bytes are deprecated.
+* rb_timespec_now() is added to fetch current datetime as struct timespec.
+  [Feature #11558]
 
-=== Stdlib compatibility issues (excluding feature bug fixes)
+* rb_time_timespec_new() is added to create a time object with epoch,
+  nanosecond, and UTC/localtime/time offset arguments.  [Feature #11558]
 
-* OpenStruct new methods can conflict with custom attributes named
-  "each_pair", "eql?", "hash" or "to_h".
+* rb_autoload() deprecated, use rb_funcall() instead.  [Feature #11664]
 
-* Dir.mktmpdir in lib/tmpdir.rb
+* rb_compile_error_with_enc(), rb_compile_error(), and rb_compile_bug()
+  deprecated.  these functions are exposed but only for internal use.
+  external libraries should not use them.
 
-  See above.
+=== Supported platform changes
 
-=== C API updates
+* OS/2 is no longer supported
+
+* BeOS is no longer supported
+
+* Borland-C is no longer supported
+
+* Haiku now stable and best effort
+
+=== Implementation improvements
+
+* Optimize Proc#call to eliminate method frame construction.
+  [Feature #11569]
+
+* Reconsidering method entry data structure.
+  [Bug #11278]
+
+* Introducing new table data structure for ID keys tables used by
+  method table and so on. New table structure is simple and fast
+  than st_table. [Feature #11420]
+
+* Machine code level tuning for object allocation and method calling
+  code. r52099, r52254
+
+* RubyVM::InstructionSequence is extended for future improvement.
+  [Feature #11788]
+
+* Case dispatch is now optimized for all special constant literals
+  including nil, true, and false.  Previously, only literal strings,
+  symbols, integers and floats compiled to optimized case dispatch.
+  [Feature #11769]
+
+* Instance variables on non-pure Ruby classes (T_DATA, T_FILE,
+  etc..) is less expensive to store than before. [Feature #11170]
+
+* All accesses to members of big Struct objects are performed in
+  constant-time.  Previously, Struct elements beyond the first 10
+  10 elements used a linear scan. [Feature #10585]
+
+* The Set class got several speed up.
+  [Misc #10754], [r52591]
+
+* Socket and I/O-related improvements
+
+  * Calling overhead of most of new keyword-using I/O methods in
+    [Feature #11229] is reduced by avoiding the inefficient C API
+    to parse keywords.  [Feature #11339]
 
-* NUM2SHORT() and NUM2USHORT() added. They are similar to NUM2INT, but short.
+  * The standard library is updated to use the improved
+    exception-free non-blocking I/O from [Feature #11229].
+    This has the additional benefit of quieter $DEBUG output in
+    addition to reducing expensive exceptions. [Feature #11044]
 
-* rb_newobj_of() and NEWOBJ_OF() added. They create a new object of a given class.
+  * (Linux-only) waiting on a single FD anywhere in the stdlib no longer
+    uses select(2), making it immune to slowdowns with high-numbered FDs.
+    [Feature #11081] [Feature #11377]
 
+* CGI.escapeHTML is optimized with C extention.
+  https://github.com/ruby/ruby/pull/1164
diff --git a/README b/README
deleted file mode 100644
index cda6a93cd6..0000000000
--- a/README
+++ /dev/null
@@ -1,166 +0,0 @@
-= What's Ruby
-
-Ruby is the interpreted scripting language for quick and
-easy object-oriented programming.  It has many features to
-process text files and to do system management tasks (as in
-Perl).  It is simple, straight-forward, and extensible.
-
-
-== Features of Ruby
-
-*   Simple Syntax
-*   *Normal* Object-Oriented features(ex. class, method calls)
-*   *Advanced* Object-Oriented features(ex. Mix-in, Singleton-method)
-*   Operator Overloading
-*   Exception Handling
-*   Iterators and Closures
-*   Garbage Collection
-*   Dynamic Loading of Object files(on some architecture)
-*   Highly Portable (works on many Unix-like/POSIX compatible platforms
-    as well as Windows, Mac OS X, BeOS etc.)
-    cf. http://bugs.ruby-lang.org/projects/ruby-trunk/wiki/SupportedPlatforms
-
-
-== How to get Ruby
-
-For a complete list of ways to install Ruby, including using third party
-tools like rvm, see:
-
-http://www.ruby-lang.org/en/downloads/
-
-The Ruby distribution files can be found in the following FTP site:
-
-ftp://ftp.ruby-lang.org/pub/ruby/
-
-The trunk of the Ruby source tree can be checked out with the
-following command:
-
-  $ svn co http://svn.ruby-lang.org/repos/ruby/trunk/ ruby
-
-Or if you are using git then use following command:
-
-  $ git clone git://github.com/ruby/ruby.git
-
-There are some other branches under development.  Try the following
-command and see the list of branches:
-
-  $ svn ls http://svn.ruby-lang.org/repos/ruby/branches/
-
-Or if you are using git then use following command:
-
-  $ git ls-remote git://github.com/ruby/ruby.git
-
-== Ruby home-page
-
-The URL of the Ruby home-page is:
-
-http://www.ruby-lang.org/
-
-
-== Mailing list
-
-There is a mailing list to talk about Ruby.
-To subscribe this list, please send the following phrase
-
-        subscribe YourFirstName YourFamilyName
-e.g.
-        subscribe Joseph Smith
-
-in the mail body (not subject) to the address <mailto:ruby-talk-ctl@ruby-lang.org>.
-
-
-== How to compile and install
-
-This is what you need to do to compile and install Ruby:
-
-0.   If you want to use Microsoft Visual C++ to compile ruby,
-     read win32/README.win32 instead of this document.
-
-1.   If +./configure+ does not exist or is older than configure.in,
-     run autoconf to (re)generate configure.
-
-2.   Run +./configure+, which will generate config.h and Makefile.
-
-     Some C compiler flags may be added by default depending on your
-     environment.  Specify <tt>optflags=..</tt> and <tt>warnflags=..</tt> as
-     necessary to override them.
-
-3.   Edit +defines.h+ if you need. Usually this step will not be needed.
-
-4.   Remove comment mark(<tt>#</tt>) before the module names from +ext/Setup+
-     (or add module names if not present), if you want to link modules
-     statically.
-
-     If you don't want to compile non static extension modules
-     (probably on architectures which does not allow dynamic loading),
-     remove comment mark from the line "<tt>#option nodynamic</tt>" in
-     +ext/Setup+.
-
-     Usually this step will not be needed.
-
-5.   Run +make+.
-
-6.   Optionally, run '<tt>make check</tt>' to check whether the compiled Ruby
-     interpreter works well. If you see the message "<tt>check succeeded</tt>",
-     your ruby works as it should (hopefully).
-
-7.   Run '<tt>make install</tt>'
-
-     This command will create following directories and install files
-     onto them.
-
-     * <tt>${DESTDIR}${prefix}/bin</tt>
-     * <tt>${DESTDIR}${prefix}/include/ruby-${MAJOR}.${MINOR}.${TEENY}</tt>
-     * <tt>${DESTDIR}${prefix}/include/ruby-${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}</tt>
-     * <tt>${DESTDIR}${prefix}/lib</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby/${MAJOR}.${MINOR}.${TEENY}</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby/site_ruby</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby/site_ruby/${MAJOR}.${MINOR}.${TEENY}</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby/site_ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby/vendor_ruby</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby/vendor_ruby/${MAJOR}.${MINOR}.${TEENY}</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby/vendor_ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby/gems/${MAJOR}.${MINOR}.${TEENY}</tt>
-     * <tt>${DESTDIR}${prefix}/share/man/man1</tt>
-     * <tt>${DESTDIR}${prefix}/share/ri/${MAJOR}.${MINOR}.${TEENY}/system</tt>
-
-     If Ruby's API version is '_x.y.z_', the <tt>${MAJOR}</tt> is '_x_', the
-     <tt>${MINOR}</tt> is '_y_', and the <tt>${TEENY}</tt> is '_z_'.
-
-     *NOTE*: teeny of the API version may be different from one of
-     Ruby's program version
-
-     You may have to be a super user to install ruby.
-
-If you fail to compile ruby, please send the detailed error report with
-the error log and machine/OS type, to help others.
-
-Some extension libraries may not get compiled because of lack of
-necessary external libraries and/or headers, then you will need to run
-'<tt>make distclean-ext</tt>' to remove old configuration after
-installing them in such case.
-
-== Copying
-
-See the file +COPYING+.
-
-== Feedback
-
-Questions about the Ruby language can be asked on the Ruby-Talk mailing list
-(http://www.ruby-lang.org/en/community/mailing-lists) or on websites like
-(http://stackoverflow.com).
-
-Bug reports should be filed at http://bugs.ruby-lang.org
-
-== The Author
-
-Ruby was originally designed and developed by Yukihiro Matsumoto (Matz) in 1995.
-
-<mailto:matz@ruby-lang.org>
-
---
-Local variables:
-mode: rdoc
-end:
diff --git a/README.EXT b/README.EXT
index 6a622d2b11..48b8d964c4 100644
--- a/README.EXT
+++ b/README.EXT
@@ -1,1472 +1 @@
-# README.EXT -  -*- RDoc -*- created at: Mon Aug  7 16:45:54 JST 1995
-
-This document explains how to make extension libraries for Ruby.
-
-= Basic Knowledge
-
-In C, variables have types and data do not have types.  In contrast,
-Ruby variables do not have a static type, and data themselves have
-types, so data will need to be converted between the languages.
-
-Data in Ruby are represented by the C type `VALUE'.  Each VALUE data
-has its data-type.
-
-To retrieve C data from a VALUE, you need to:
-
-1. Identify the VALUE's data type
-2. Convert the VALUE into C data
-
-Converting to the wrong data type may cause serious problems.
-
-== Data-Types
-
-The Ruby interpreter has the following data types:
-
-T_NIL       :: nil
-T_OBJECT    :: ordinary object
-T_CLASS     :: class
-T_MODULE    :: module
-T_FLOAT     :: floating point number
-T_STRING    :: string
-T_REGEXP    :: regular expression
-T_ARRAY     :: array
-T_HASH      :: associative array
-T_STRUCT    :: (Ruby) structure
-T_BIGNUM    :: multi precision integer
-T_FIXNUM    :: Fixnum(31bit or 63bit integer)
-T_COMPLEX   :: complex number
-T_RATIONAL  :: rational number
-T_FILE      :: IO
-T_TRUE      :: true
-T_FALSE     :: false
-T_DATA      :: data
-T_SYMBOL    :: symbol
-
-In addition, there are several other types used internally:
-
-T_ICLASS    :: included module
-T_MATCH     :: MatchData object
-T_UNDEF     :: undefined
-T_NODE      :: syntax tree node
-T_ZOMBIE    :: object awaiting finalization
-
-Most of the types are represented by C structures.
-
-== Check Data Type of the VALUE
-
-The macro TYPE() defined in ruby.h shows the data type of the VALUE.
-TYPE() returns the constant number T_XXXX described above.  To handle
-data types, your code will look something like this:
-
-  switch (TYPE(obj)) {
-    case T_FIXNUM:
-      /* process Fixnum */
-      break;
-    case T_STRING:
-      /* process String */
-      break;
-    case T_ARRAY:
-      /* process Array */
-      break;
-    default:
-      /* raise exception */
-      rb_raise(rb_eTypeError, "not valid value");
-      break;
-  }
-
-There is the data-type check function
-
-  void Check_Type(VALUE value, int type)
-
-which raises an exception if the VALUE does not have the type
-specified.
-
-There are also faster check macros for fixnums and nil.
-
-  FIXNUM_P(obj)
-  NIL_P(obj)
-
-== Convert VALUE into C Data
-
-The data for type T_NIL, T_FALSE, T_TRUE are nil, false, true
-respectively.  They are singletons for the data type.
-The equivalent C constants are: Qnil, Qfalse, Qtrue.
-Note that Qfalse is false in C also (i.e. 0), but not Qnil.
-
-The T_FIXNUM data is a 31bit or 63bit length fixed integer.
-This size is depend on the size of long: if long is 32bit then
-T_FIXNUM is 31bit, if long is 64bit then T_FIXNUM is 63bit.
-T_FIXNUM can be converted to a C integer by using the
-FIX2INT() macro or FIX2LONG().  Though you have to check that the
-data is really FIXNUM before using them, they are faster.  FIX2LONG()
-never raises exceptions, but FIX2INT() raises RangeError if the
-result is bigger or smaller than the size of int.
-There are also NUM2INT() and NUM2LONG() which converts any Ruby
-numbers into C integers.  These macros includes a type check,
-so an exception will be raised if the conversion failed.  NUM2DBL()
-can be used to retrieve the double float value in the same way.
-
-You can use the macros
-StringValue() and StringValuePtr() to get a char* from a VALUE.
-StringValue(var) replaces var's value with the result of "var.to_str()".
-StringValuePtr(var) does same replacement and returns char*
-representation of var.  These macros will skip the replacement if var
-is a String.  Notice that the macros take only the lvalue as their
-argument, to change the value of var in place.
-
-You can also use the macro named StringValueCStr(). This is just
-like StringValuePtr(), but always add nul character at the end of
-the result. If the result contains nul character, this macro causes
-the ArgumentError exception.
-StringValuePtr() doesn't guarantee the existence of a nul at the end
-of the result, and the result may contain nul.
-
-Other data types have corresponding C structures, e.g. struct RArray
-for T_ARRAY etc. The VALUE of the type which has the corresponding
-structure can be cast to retrieve the pointer to the struct.  The
-casting macro will be of the form RXXXX for each data type; for
-instance, RARRAY(obj).  See "ruby.h".
-
-There are some accessing macros for structure members, for example
-`RSTRING_LEN(str)' to get the size of the Ruby String object.  The
-allocated region can be accessed by `RSTRING_PTR(str)'.  For arrays,
-use `RARRAY_LEN(ary)' and `RARRAY_PTR(ary)' respectively.
-
-Notice: Do not change the value of the structure directly, unless you
-are responsible for the result.  This ends up being the cause of
-interesting bugs.
-
-== Convert C Data into VALUE
-
-To convert C data to Ruby values:
-
-FIXNUM ::
-
-  left shift 1 bit, and turn on LSB.
-
-Other pointer values::
-
-  cast to VALUE.
-
-You can determine whether a VALUE is pointer or not by checking its LSB.
-
-Notice Ruby does not allow arbitrary pointer values to be a VALUE.  They
-should be pointers to the structures which Ruby knows about.  The known
-structures are defined in <ruby.h>.
-
-To convert C numbers to Ruby values, use these macros.
-
-INT2FIX() :: for integers within 31bits.
-INT2NUM() :: for arbitrary sized integer.
-
-INT2NUM() converts an integer into a Bignum if it is out of the FIXNUM
-range, but is a bit slower.
-
-== Manipulating Ruby Data
-
-As I already mentioned, it is not recommended to modify an object's
-internal structure.  To manipulate objects, use the functions supplied
-by the Ruby interpreter. Some (not all) of the useful functions are
-listed below:
-
-=== String Functions
-
-rb_str_new(const char *ptr, long len) ::
-
-  Creates a new Ruby string.
-
-rb_str_new2(const char *ptr) ::
-rb_str_new_cstr(const char *ptr) ::
-
-  Creates a new Ruby string from a C string.  This is equivalent to
-  rb_str_new(ptr, strlen(ptr)).
-
-rb_tainted_str_new(const char *ptr, long len) ::
-
-  Creates a new tainted Ruby string.  Strings from external data
-  sources should be tainted.
-
-rb_tainted_str_new2(const char *ptr) ::
-rb_tainted_str_new_cstr(const char *ptr) ::
-
-  Creates a new tainted Ruby string from a C string.
-
-rb_sprintf(const char *format, ...) ::
-rb_vsprintf(const char *format, va_list ap) ::
-
-  Creates a new Ruby string with printf(3) format.
-
-  Note: In the format string, %i is used for Object#to_s (or Object#inspect if
-  '+' flag is set) output (and related argument must be a VALUE).  For integers
-  in format strings, use %d.
-
-rb_str_cat(VALUE str, const char *ptr, long len) ::
-
-  Appends len bytes of data from ptr to the Ruby string.
-
-rb_str_cat2(VALUE str, const char* ptr) ::
-
-  Appends C string ptr to Ruby string str.  This function is
-  equivalent to rb_str_cat(str, ptr, strlen(ptr)).
-
-rb_str_catf(VALUE str, const char* format, ...) ::
-rb_str_vcatf(VALUE str, const char* format, va_list ap) ::
-
-  Appends C string format and successive arguments to Ruby string
-  str according to a printf-like format.  These functions are
-  equivalent to rb_str_cat2(str, rb_sprintf(format, ...)) and
-  rb_str_cat2(str, rb_vsprintf(format, ap)), respectively.
-
-rb_enc_str_new(const char *ptr, long len, rb_encoding *enc) ::
-
-  Creates a new Ruby string with the specified encoding.
-
-rb_usascii_str_new(const char *ptr, long len) ::
-rb_usascii_str_new_cstr(const char *ptr) ::
-
-  Creates a new Ruby string with encoding US-ASCII.
-
-rb_str_resize(VALUE str, long len) ::
-
-  Resizes Ruby string to len bytes.  If str is not modifiable, this
-  function raises an exception.  The length of str must be set in
-  advance.  If len is less than the old length the content beyond
-  len bytes is discarded, else if len is greater than the old length
-  the content beyond the old length bytes will not be preserved but
-  will be garbage.  Note that RSTRING_PTR(str) may change by calling
-  this function.
-
-rb_str_set_len(VALUE str, long len) ::
-
-  Sets the length of Ruby string.  If str is not modifiable, this
-  function raises an exception.  This function preserves the content
-  upto len bytes, regardless RSTRING_LEN(str).  len must not exceed
-  the capacity of str.
-
-=== Array Functions
-
-rb_ary_new() ::
-
-  Creates an array with no elements.
-
-rb_ary_new2(long len) ::
-
-  Creates an array with no elements, allocating internal buffer
-  for len elements.
-
-rb_ary_new3(long n, ...) ::
-
-  Creates an n-element array from the arguments.
-
-rb_ary_new4(long n, VALUE *elts) ::
-
-  Creates an n-element array from a C array.
-
-rb_ary_to_ary(VALUE obj) ::
-
-  Converts the object into an array.
-  Equivalent to Object#to_ary.
-
-There are many functions to operate an array.  They may dump core if other
-types are given.
-
-rb_ary_aref(argc, VALUE *argv, VALUE ary) ::
-
-  Equivaelent to Array#[].
-
-rb_ary_entry(VALUE ary, long offset) ::
-
-  ary[offset]
-
-rb_ary_subseq(VALUE ary, long beg, long len) ::
-
-  ary[beg, len]
-
-rb_ary_push(VALUE ary, VALUE val) ::
-rb_ary_pop(VALUE ary) ::
-rb_ary_shift(VALUE ary) ::
-rb_ary_unshift(VALUE ary, VALUE val) ::
-
-rb_ary_cat(VALUE ary, const VALUE *ptr, long len) ::
-
-  Appends len elements of objects from ptr to the array.
-
-= Extending Ruby with C
-
-== Adding New Features to Ruby
-
-You can add new features (classes, methods, etc.) to the Ruby
-interpreter.  Ruby provides APIs for defining the following things:
-
-* Classes, Modules
-* Methods, Singleton Methods
-* Constants
-
-=== Class and Module Definition
-
-To define a class or module, use the functions below:
-
-  VALUE rb_define_class(const char *name, VALUE super)
-  VALUE rb_define_module(const char *name)
-
-These functions return the newly created class or module.  You may
-want to save this reference into a variable to use later.
-
-To define nested classes or modules, use the functions below:
-
-  VALUE rb_define_class_under(VALUE outer, const char *name, VALUE super)
-  VALUE rb_define_module_under(VALUE outer, const char *name)
-
-=== Method and Singleton Method Definition
-
-To define methods or singleton methods, use these functions:
-
-  void rb_define_method(VALUE klass, const char *name,
-		        VALUE (*func)(), int argc)
-
-  void rb_define_singleton_method(VALUE object, const char *name,
-			          VALUE (*func)(), int argc)
-
-The `argc' represents the number of the arguments to the C function,
-which must be less than 17.  But I doubt you'll need that many.
-
-If `argc' is negative, it specifies the calling sequence, not number of
-the arguments.
-
-If argc is -1, the function will be called as:
-
-  VALUE func(int argc, VALUE *argv, VALUE obj)
-
-where argc is the actual number of arguments, argv is the C array of
-the arguments, and obj is the receiver.
-
-If argc is -2, the arguments are passed in a Ruby array. The function
-will be called like:
-
-  VALUE func(VALUE obj, VALUE args)
-
-where obj is the receiver, and args is the Ruby array containing
-actual arguments.
-
-There are some more functions to define methods. One takes an ID
-as the name of method to be defined. See also ID or Symbol below.
-
-  void rb_define_method_id(VALUE klass, ID name,
-                           VALUE (*func)(ANYARGS), int argc)
-
-There are two functions to define private/protected methods:
-
-  void rb_define_private_method(VALUE klass, const char *name,
-			        VALUE (*func)(), int argc)
-  void rb_define_protected_method(VALUE klass, const char *name,
-			          VALUE (*func)(), int argc)
-
-At last, rb_define_module_function defines a module functions,
-which are private AND singleton methods of the module.
-For example, sqrt is the module function defined in Math module.
-It can be called in the following way:
-
-  Math.sqrt(4)
-
-or
-
-  include Math
-  sqrt(4)
-
-To define module functions, use:
-
-  void rb_define_module_function(VALUE module, const char *name,
-				 VALUE (*func)(), int argc)
-
-In addition, function-like methods, which are private methods defined
-in the Kernel module, can be defined using:
-
-  void rb_define_global_function(const char *name, VALUE (*func)(), int argc)
-
-To define an alias for the method,
-
-  void rb_define_alias(VALUE module, const char* new, const char* old);
-
-To define a reader/writer for an attribute,
-
-  void rb_define_attr(VALUE klass, const char *name, int read, int write)
-
-To define and undefine the `allocate' class method,
-
-  void rb_define_alloc_func(VALUE klass, VALUE (*func)(VALUE klass));
-  void rb_undef_alloc_func(VALUE klass);
-
-func has to take the klass as the argument and return a newly
-allocated instance.  This instance should be as empty as possible,
-without any expensive (including external) resources.
-
-=== Constant Definition
-
-We have 2 functions to define constants:
-
-  void rb_define_const(VALUE klass, const char *name, VALUE val)
-  void rb_define_global_const(const char *name, VALUE val)
-
-The former is to define a constant under specified class/module.  The
-latter is to define a global constant.
-
-== Use Ruby Features from C
-
-There are several ways to invoke Ruby's features from C code.
-
-=== Evaluate Ruby Programs in a String
-
-The easiest way to use Ruby's functionality from a C program is to
-evaluate the string as Ruby program.  This function will do the job:
-
-  VALUE rb_eval_string(const char *str)
-
-Evaluation is done under the current context, thus current local variables
-of the innermost method (which is defined by Ruby) can be accessed.
-
-Note that the evaluation can raise an exception. There is a safer
-function:
-
-  VALUE rb_eval_string_protect(const char *str, int *state)
-
-It returns nil when an error occur. Moreover, *state is zero if str was
-successfully evaluated, or nonzero otherwise.
-
-=== ID or Symbol
-
-You can invoke methods directly, without parsing the string.  First I
-need to explain about ID.  ID is the integer number to represent
-Ruby's identifiers such as variable names.  The Ruby data type
-corresponding to ID is Symbol.  It can be accessed from Ruby in the
-form:
-
-  :Identifier
-
-or
-
-  :"any kind of string"
-
-You can get the ID value from a string within C code by using
-
-  rb_intern(const char *name)
-  rb_intern_str(VALUE name)
-
-You can retrieve ID from Ruby object (Symbol or String) given as an
-argument by using
-
-  rb_to_id(VALUE symbol)
-  rb_check_id(volatile VALUE *name)
-  rb_check_id_cstr(const char *name, long len, rb_encoding *enc)
-
-These functions try to convert the argument to a String if it was not
-a Symbol nor a String.  The second function stores the converted
-result into *name, and returns 0 if the string is not a known symbol.
-After this function returned a non-zero value, *name is always a
-Symbol or a String, otherwise it is a String if the result is 0.
-The third function takes NUL-terminated C string, not Ruby VALUE.
-
-You can convert C ID to Ruby Symbol by using
-
-  VALUE ID2SYM(ID id)
-
-and to convert Ruby Symbol object to ID, use
-
-  ID SYM2ID(VALUE symbol)
-
-=== Invoke Ruby Method from C
-
-To invoke methods directly, you can use the function below
-
-  VALUE rb_funcall(VALUE recv, ID mid, int argc, ...)
-
-This function invokes a method on the recv, with the method name
-specified by the symbol mid.
-
-=== Accessing the Variables and Constants
-
-You can access class variables and instance variables using access
-functions.  Also, global variables can be shared between both
-environments.  There's no way to access Ruby's local variables.
-
-The functions to access/modify instance variables are below:
-
-  VALUE rb_ivar_get(VALUE obj, ID id)
-  VALUE rb_ivar_set(VALUE obj, ID id, VALUE val)
-
-id must be the symbol, which can be retrieved by rb_intern().
-
-To access the constants of the class/module:
-
-  VALUE rb_const_get(VALUE obj, ID id)
-
-See also Constant Definition above.
-
-= Information Sharing Between Ruby and C
-
-=== Ruby Constants That C Can Be Accessed From C
-
-As stated in section 1.3,
-the following Ruby constants can be referred from C.
-
-  Qtrue
-  Qfalse
-
-Boolean values.  Qfalse is false in C also (i.e. 0).
-
-  Qnil
-
-Ruby nil in C scope.
-
-== Global Variables Shared Between C and Ruby
-
-Information can be shared between the two environments using shared global
-variables.  To define them, you can use functions listed below:
-
-  void rb_define_variable(const char *name, VALUE *var)
-
-This function defines the variable which is shared by both environments.
-The value of the global variable pointed to by `var' can be accessed
-through Ruby's global variable named `name'.
-
-You can define read-only (from Ruby, of course) variables using the
-function below.
-
-  void rb_define_readonly_variable(const char *name, VALUE *var)
-
-You can defined hooked variables.  The accessor functions (getter and
-setter) are called on access to the hooked variables.
-
-  void rb_define_hooked_variable(const char *name, VALUE *var,
-				 VALUE (*getter)(), void (*setter)())
-
-If you need to supply either setter or getter, just supply 0 for the
-hook you don't need.  If both hooks are 0, rb_define_hooked_variable()
-works just like rb_define_variable().
-
-The prototypes of the getter and setter functions are as follows:
-
-  VALUE (*getter)(ID id, VALUE *var);
-  void (*setter)(VALUE val, ID id, VALUE *var);
-
-
-Also you can define a Ruby global variable without a corresponding C
-variable.  The value of the variable will be set/get only by hooks.
-
-  void rb_define_virtual_variable(const char *name,
-				  VALUE (*getter)(), void (*setter)())
-
-The prototypes of the getter and setter functions are as follows:
-
-  VALUE (*getter)(ID id);
-  void (*setter)(VALUE val, ID id);
-
-
-== Encapsulate C Data into a Ruby Object
-
-To wrap and objectify a C pointer as a Ruby object (so called
-DATA), use Data_Wrap_Struct().
-
-  Data_Wrap_Struct(klass, mark, free, sval)
-
-Data_Wrap_Struct() returns a created DATA object.  The klass argument
-is the class for the DATA object.  The mark argument is the function
-to mark Ruby objects pointed by this data.  The free argument is the
-function to free the pointer allocation.  If this is -1, the pointer
-will be just freed.  The functions mark and free will be called from
-garbage collector.
-
-These mark / free functions are invoked during GC execution.  No
-object allocations are allowed during it, so do not allocate ruby
-objects inside them.
-
-You can allocate and wrap the structure in one step.
-
-  Data_Make_Struct(klass, type, mark, free, sval)
-
-This macro returns an allocated Data object, wrapping the pointer to
-the structure, which is also allocated.  This macro works like:
-
-  (sval = ALLOC(type), Data_Wrap_Struct(klass, mark, free, sval))
-
-Arguments klass, mark, and free work like their counterparts in
-Data_Wrap_Struct().  A pointer to the allocated structure will be
-assigned to sval, which should be a pointer of the type specified.
-
-To retrieve the C pointer from the Data object, use the macro
-Data_Get_Struct().
-
-  Data_Get_Struct(obj, type, sval)
-
-A pointer to the structure will be assigned to the variable sval.
-
-See the example below for details.
-
-= Example - Creating dbm Extension
-
-OK, here's the example of making an extension library.  This is the
-extension to access DBMs.  The full source is included in the ext/
-directory in the Ruby's source tree.
-
-== Make the Directory
-
-  % mkdir ext/dbm
-
-Make a directory for the extension library under ext directory.
-
-== Design the Library
-
-You need to design the library features, before making it.
-
-== Write the C Code
-
-You need to write C code for your extension library.  If your library
-has only one source file, choosing ``LIBRARY.c'' as a file name is
-preferred.  On the other hand, in case your library has multiple source
-files, avoid choosing ``LIBRARY.c'' for a file name.  It may conflict
-with an intermediate file ``LIBRARY.o'' on some platforms.
-Note that some functions in mkmf library described below generate
-a file ``conftest.c'' for checking with compilation.  You shouldn't
-choose ``conftest.c'' as a name of a source file.
-
-Ruby will execute the initializing function named ``Init_LIBRARY'' in
-the library.  For example, ``Init_dbm()'' will be executed when loading
-the library.
-
-Here's the example of an initializing function.
-
-  void
-  Init_dbm(void)
-  {
-      /* define DBM class */
-      cDBM = rb_define_class("DBM", rb_cObject);
-      /* DBM includes Enumerate module */
-      rb_include_module(cDBM, rb_mEnumerable);
-
-      /* DBM has class method open(): arguments are received as C array */
-      rb_define_singleton_method(cDBM, "open", fdbm_s_open, -1);
-
-      /* DBM instance method close(): no args */
-      rb_define_method(cDBM, "close", fdbm_close, 0);
-      /* DBM instance method []: 1 argument */
-      rb_define_method(cDBM, "[]", fdbm_fetch, 1);
-
-      /* ... */
-
-      /* ID for a instance variable to store DBM data */
-      id_dbm = rb_intern("dbm");
-  }
-
-The dbm extension wraps the dbm struct in the C environment using
-Data_Make_Struct.
-
-  struct dbmdata {
-      int  di_size;
-      DBM *di_dbm;
-  };
-
-  obj = Data_Make_Struct(klass, struct dbmdata, 0, free_dbm, dbmp);
-
-This code wraps the dbmdata structure into a Ruby object.  We avoid
-wrapping DBM* directly, because we want to cache size information.
-
-To retrieve the dbmdata structure from a Ruby object, we define the
-following macro:
-
-  #define GetDBM(obj, dbmp) {\
-      Data_Get_Struct(obj, struct dbmdata, dbmp);\
-      if (dbmp->di_dbm == 0) closed_dbm();\
-  }
-
-This sort of complicated macro does the retrieving and close checking for
-the DBM.
-
-There are three kinds of way to receive method arguments.  First,
-methods with a fixed number of arguments receive arguments like this:
-
-  static VALUE
-  fdbm_delete(VALUE obj, VALUE keystr)
-  {
-        /* ... */
-  }
-
-The first argument of the C function is the self, the rest are the
-arguments to the method.
-
-Second, methods with an arbitrary number of arguments receive
-arguments like this:
-
-  static VALUE
-  fdbm_s_open(int argc, VALUE *argv, VALUE klass)
-  {
-      /* ... */
-      if (rb_scan_args(argc, argv, "11", &file, &vmode) == 1) {
-          mode = 0666;		/* default value */
-      }
-      /* ... */
-  }
-
-The first argument is the number of method arguments, the second
-argument is the C array of the method arguments, and the third
-argument is the receiver of the method.
-
-You can use the function rb_scan_args() to check and retrieve the
-arguments.  The third argument is a string that specifies how to
-capture method arguments and assign them to the following VALUE
-references.
-
-
-The following is an example of a method that takes arguments by Ruby's
-array:
-
-  static VALUE
-  thread_initialize(VALUE thread, VALUE args)
-  {
-      /* ... */
-  }
-
-The first argument is the receiver, the second one is the Ruby array
-which contains the arguments to the method.
-
-*Notice*: GC should know about global variables which refer to Ruby's objects,
-but are not exported to the Ruby world.  You need to protect them by
-
-  void rb_global_variable(VALUE *var)
-
-== Prepare extconf.rb
-
-If the file named extconf.rb exists, it will be executed to generate
-Makefile.
-
-extconf.rb is the file for checking compilation conditions etc.  You
-need to put
-
-  require 'mkmf'
-
-at the top of the file.  You can use the functions below to check
-various conditions.
-
-  have_macro(macro[, headers[, opt]]): check whether macro is defined
-  have_library(lib[, func[, headers[, opt]]]): check whether library containing function exists
-  find_library(lib[, func, *paths]): find library from paths
-  have_func(func[, headers[, opt]): check whether function exists
-  have_var(var[, headers[, opt]]): check whether variable exists
-  have_header(header[, preheaders[, opt]]): check whether header file exists
-  find_header(header, *paths): find header from paths
-  have_framework(fw): check whether framework exists (for MacOS X)
-  have_struct_member(type, member[, headers[, opt]]): check whether struct has member
-  have_type(type[, headers[, opt]]): check whether type exists
-  find_type(type, opt, *headers): check whether type exists in headers
-  have_const(const[, headers[, opt]]): check whether constant is defined
-  check_sizeof(type[, headers[, opts]]): check size of type
-  check_signedness(type[, headers[, opts]]): check signedness of type
-  convertible_int(type[, headers[, opts]]): find convertible integer type
-  find_executable(bin[, path]): find excutable file path
-  create_header(header): generate configured header
-  create_makefile(target[, target_prefix]): generate Makefile
-
-See MakeMakefile for full documentation of these functions.
-
-The value of the variables below will affect the Makefile.
-
-  $CFLAGS: included in CFLAGS make variable (such as -O)
-  $CPPFLAGS: included in CPPFLAGS make variable (such as -I, -D)
-  $LDFLAGS: included in LDFLAGS make variable (such as -L)
-  $objs: list of object file names
-
-Normally, the object files list is automatically generated by searching
-source files, but you must define them explicitly if any sources will
-be generated while building.
-
-If a compilation condition is not fulfilled, you should not call
-``create_makefile''.  The Makefile will not be generated, compilation will
-not be done.
-
-== Prepare Depend (Optional)
-
-If the file named depend exists, Makefile will include that file to
-check dependencies.  You can make this file by invoking
-
-  % gcc -MM *.c > depend
-
-It's harmless.  Prepare it.
-
-== Generate Makefile
-
-Try generating the Makefile by:
-
-  ruby extconf.rb
-
-If the library should be installed under vendor_ruby directory
-instead of site_ruby directory, use --vendor option as follows.
-
-  ruby extconf.rb --vendor
-
-You don't need this step if you put the extension library under the ext
-directory of the ruby source tree.  In that case, compilation of the
-interpreter will do this step for you.
-
-== Run make
-
-Type
-
-  make
-
-to compile your extension.  You don't need this step either if you have
-put the extension library under the ext directory of the ruby source tree.
-
-== Debug
-
-You may need to rb_debug the extension.  Extensions can be linked
-statically by adding the directory name in the ext/Setup file so that
-you can inspect the extension with the debugger.
-
-== Done! Now You Have the Extension Library
-
-You can do anything you want with your library.  The author of Ruby
-will not claim any restrictions on your code depending on the Ruby API.
-Feel free to use, modify, distribute or sell your program.
-
-= Appendix A. Ruby Source Files Overview
-
-== Ruby Language Core
-
-class.c    :: classes and modules
-error.c    :: exception classes and exception mechanism
-gc.c       :: memory management
-load.c     :: library loading
-object.c   :: objects
-variable.c :: variables and constants
-
-== Ruby Syntax Parser
-
-parse.y  :: grammar definition
-parse.c  :: automatically generated from parse.y
-keywords :: reserved keywords
-lex.c    :: automatically generated from keywords
-
-== Ruby Evaluator (a.k.a. YARV)
-
-  compile.c
-  eval.c
-  eval_error.c
-  eval_jump.c
-  eval_safe.c
-  insns.def           : definition of VM instructions
-  iseq.c              : implementation of VM::ISeq
-  thread.c            : thread management and context swiching
-  thread_win32.c      : thread implementation
-  thread_pthread.c    : ditto
-  vm.c
-  vm_dump.c
-  vm_eval.c
-  vm_exec.c
-  vm_insnhelper.c
-  vm_method.c
-
-  opt_insns_unif.def  : instruction unification
-  opt_operand.def     : definitions for optimization
-
-    -> insn*.inc      : automatically generated
-    -> opt*.inc       : automatically generated
-    -> vm.inc         : automatically generated
-
-== Regular Expression Engine (Oniguruma)
-
-  regex.c
-  regcomp.c
-  regenc.c
-  regerror.c
-  regexec.c
-  regparse.c
-  regsyntax.c
-
-== Utility Functions
-
-debug.c    :: debug symbols for C debuggger
-dln.c      :: dynamic loading
-st.c       :: general purpose hash table
-strftime.c :: formatting times
-util.c     :: misc utilities
-
-== Ruby Interpreter Implementation
-
-  dmyext.c
-  dmydln.c
-  dmyencoding.c
-  id.c
-  inits.c
-  main.c
-  ruby.c
-  version.c
-
-  gem_prelude.rb
-  prelude.rb
-
-== Class Library
-
-array.c      :: Array
-bignum.c     :: Bignum
-compar.c     :: Comparable
-complex.c    :: Complex
-cont.c       :: Fiber, Continuation
-dir.c        :: Dir
-enum.c       :: Enumerable
-enumerator.c :: Enumerator
-file.c       :: File
-hash.c       :: Hash
-io.c         :: IO
-marshal.c    :: Marshal
-math.c       :: Math
-numeric.c    :: Numeric, Integer, Fixnum, Float
-pack.c       :: Array#pack, String#unpack
-proc.c       :: Binding, Proc
-process.c    :: Process
-random.c     :: random number
-range.c      :: Range
-rational.c   :: Rational
-re.c         :: Regexp, MatchData
-signal.c     :: Signal
-sprintf.c    :: String#sprintf
-string.c     :: String
-struct.c     :: Struct
-time.c       :: Time
-
-defs/known_errors.def :: Errno::* exception classes
--> known_errors.inc   :: automatically generated
-
-== Multilingualization
-
-encoding.c  :: Encoding
-transcode.c :: Encoding::Converter
-enc/*.c     :: encoding classes
-enc/trans/* :: codepoint mapping tables
-
-== goruby Interpreter Implementation
-
-  goruby.c
-  golf_prelude.rb     : goruby specific libraries.
-    -> golf_prelude.c : automatically generated
-
-
-= Appendix B. Ruby Extension API Reference
-
-== Types
-
-VALUE ::
-
-  The type for the Ruby object.  Actual structures are defined in ruby.h,
-  such as struct RString, etc.  To refer the values in structures, use
-  casting macros like RSTRING(obj).
-
-== Variables and Constants
-
-Qnil::
-  nil object
-
-Qtrue::
-  true object (default true value)
-
-Qfalse::
-  false object
-
-== C Pointer Wrapping
-
-Data_Wrap_Struct(VALUE klass, void (*mark)(), void (*free)(), void *sval) ::
-
-  Wrap a C pointer into a Ruby object.  If object has references to other
-  Ruby objects, they should be marked by using the mark function during
-  the GC process.  Otherwise, mark should be 0.  When this object is no
-  longer referred by anywhere, the pointer will be discarded by free
-  function.
-
-Data_Make_Struct(klass, type, mark, free, sval) ::
-
-  This macro allocates memory using malloc(), assigns it to the variable
-  sval, and returns the DATA encapsulating the pointer to memory region.
-
-Data_Get_Struct(data, type, sval) ::
-
-  This macro retrieves the pointer value from DATA, and assigns it to
-  the variable sval.
-
-== Checking Data Types
-
-TYPE(value) ::
-
-  Internal type (T_NIL, T_FIXNUM, etc.)
-
-FIXNUM_P(value) ::
-
-  Is +value+ a Fixnum?
-
-NIL_P(value) ::
-
-  Is +value+ nil?
-
-void Check_Type(VALUE value, int type) ::
-
-  Ensures +value+ is of the given internal +type+ or raises a TypeError
-
-SaveStringValue(value) ::
-
-  Checks that +value+ is a String and is not tainted
-
-== Data Type Conversion
-
-FIX2INT(value), INT2FIX(i) ::
-
-  Fixnum <-> integer
-
-FIX2LONG(value), LONG2FIX(l) ::
-
-  Fixnum <-> long
-
-NUM2INT(value), INT2NUM(i) ::
-
-  Numeric <-> integer
-
-NUM2UINT(value), UINT2NUM(ui) ::
-
-  Numeric <-> unsigned integer
-
-NUM2LONG(value), LONG2NUM(l) ::
-
-  Numeric <-> long
-
-NUM2ULONG(value), ULONG2NUM(ul) ::
-
-  Numeric <-> unsigned long
-
-NUM2LL(value), LL2NUM(ll) ::
-
-  Numeric <-> long long
-
-NUM2ULL(value), ULL2NUM(ull) ::
-
-  Numeric <-> unsigned long long
-
-NUM2OFFT(value), OFFT2NUM(off) ::
-
-  Numeric <-> off_t
-
-NUM2SIZET(value), SIZET2NUM(size) ::
-
-  Numeric <-> size_t
-
-NUM2SSIZET(value), SSIZET2NUM(ssize) ::
-
-  Numeric <-> ssize_t
-
-NUM2DBL(value) ::
-
-  Numeric -> double
-
-rb_float_new(f) ::
-
-  double -> Float
-
-StringValue(value) ::
-
-  Object with #to_str -> String
-
-StringValuePtr(value) ::
-
-  Object with #to_str -> pointer to String data
-
-StringValueCStr(value) ::
-
-  Object with #to_str -> pointer to String data without NULL bytes
-
-rb_str_new2(s) ::
-
-  char * -> String
-
-== Defining Class and Module
-
-VALUE rb_define_class(const char *name, VALUE super) ::
-
-  Defines a new Ruby class as a subclass of super.
-
-VALUE rb_define_class_under(VALUE module, const char *name, VALUE super) ::
-
-  Creates a new Ruby class as a subclass of super, under the module's
-  namespace.
-
-VALUE rb_define_module(const char *name) ::
-
-  Defines a new Ruby module.
-
-VALUE rb_define_module_under(VALUE module, const char *name) ::
-
-  Defines a new Ruby module under the module's namespace.
-
-void rb_include_module(VALUE klass, VALUE module) ::
-
-  Includes module into class.  If class already includes it, just ignored.
-
-void rb_extend_object(VALUE object, VALUE module) ::
-
-  Extend the object with the module's attributes.
-
-== Defining Global Variables
-
-void rb_define_variable(const char *name, VALUE *var) ::
-
-  Defines a global variable which is shared between C and Ruby.  If name
-  contains a character which is not allowed to be part of the symbol,
-  it can't be seen from Ruby programs.
-
-void rb_define_readonly_variable(const char *name, VALUE *var) ::
-
-  Defines a read-only global variable.  Works just like
-  rb_define_variable(), except the defined variable is read-only.
-
-void rb_define_virtual_variable(const char *name, VALUE (*getter)(), VALUE (*setter)()) ::
-
-  Defines a virtual variable, whose behavior is defined by a pair of C
-  functions.  The getter function is called when the variable is
-  referenced.  The setter function is called when the variable is set to a
-  value.  The prototype for getter/setter functions are:
-
-    VALUE getter(ID id)
-    void setter(VALUE val, ID id)
-
-  The getter function must return the value for the access.
-
-void rb_define_hooked_variable(const char *name, VALUE *var, VALUE (*getter)(), VALUE (*setter)()) ::
-
-  Defines hooked variable.  It's a virtual variable with a C variable.
-  The getter is called as
-
-    VALUE getter(ID id, VALUE *var)
-
-  returning a new value.  The setter is called as
-
-    void setter(VALUE val, ID id, VALUE *var)
-
-  GC requires C global variables which hold Ruby values to be marked.
-
-void rb_global_variable(VALUE *var)
-
-  Tells GC to protect these variables.
-
-== Constant Definition
-
-void rb_define_const(VALUE klass, const char *name, VALUE val) ::
-
-  Defines a new constant under the class/module.
-
-void rb_define_global_const(const char *name, VALUE val) ::
-
-  Defines a global constant.  This is just the same as
-
-    rb_define_const(cKernal, name, val)
-
-== Method Definition
-
-rb_define_method(VALUE klass, const char *name, VALUE (*func)(), int argc) ::
-
-  Defines a method for the class.  func is the function pointer.  argc
-  is the number of arguments.  if argc is -1, the function will receive
-  3 arguments: argc, argv, and self.  if argc is -2, the function will
-  receive 2 arguments, self and args, where args is a Ruby array of
-  the method arguments.
-
-rb_define_private_method(VALUE klass, const char *name, VALUE (*func)(), int argc) ::
-
-  Defines a private method for the class.  Arguments are same as
-  rb_define_method().
-
-rb_define_singleton_method(VALUE klass, const char *name, VALUE (*func)(), int argc) ::
-
-  Defines a singleton method.  Arguments are same as rb_define_method().
-
-rb_scan_args(int argc, VALUE *argv, const char *fmt, ...) ::
-
-  Retrieve argument from argc and argv to given VALUE references
-  according to the format string.  The format can be described in ABNF
-  as follows:
-
-    scan-arg-spec  := param-arg-spec [option-hash-arg-spec] [block-arg-spec]
-
-    param-arg-spec := pre-arg-spec [post-arg-spec] / post-arg-spec /
-                      pre-opt-post-arg-spec
-    pre-arg-spec   := num-of-leading-mandatory-args [num-of-optional-args]
-    post-arg-spec  := sym-for-variable-length-args
-                      [num-of-trailing-mandatory-args]
-    pre-opt-post-arg-spec := num-of-leading-mandatory-args num-of-optional-args
-                             num-of-trailing-mandatory-args
-    option-hash-arg-spec := sym-for-option-hash-arg
-    block-arg-spec := sym-for-block-arg
-
-    num-of-leading-mandatory-args  := DIGIT ; The number of leading
-                                            ; mandatory arguments
-    num-of-optional-args           := DIGIT ; The number of optional
-                                            ; arguments
-    sym-for-variable-length-args   := "*"   ; Indicates that variable
-                                            ; length arguments are
-                                            ; captured as a ruby array
-    num-of-trailing-mandatory-args := DIGIT ; The number of trailing
-                                            ; mandatory arguments
-    sym-for-option-hash-arg        := ":"   ; Indicates that an option
-                                            ; hash is captured if the last
-                                            ; argument is a hash or can be
-                                            ; converted to a hash with
-                                            ; #to_hash.  When the last
-                                            ; argument is nil, it is
-                                            ; captured if it is not
-                                            ; ambiguous to take it as
-                                            ; empty option hash; i.e. '*'
-                                            ; is not specified and
-                                            ; arguments are given more
-                                            ; than sufficient.
-    sym-for-block-arg              := "&"   ; Indicates that an iterator
-                                            ; block should be captured if
-                                            ; given
-
-  For example, "12" means that the method requires at least one
-  argument, and at most receives three (1+2) arguments.  So, the format
-  string must be followed by three variable references, which are to be
-  assigned to captured arguments.  For omitted arguments, variables are
-  set to Qnil.  NULL can be put in place of a variable reference, which
-  means the corresponding captured argument(s) should be just dropped.
-
-  The number of given arguments, excluding an option hash or iterator
-  block, is returned.
-
-== Invoking Ruby method
-
-VALUE rb_funcall(VALUE recv, ID mid, int narg, ...) ::
-
-  Invokes a method.  To retrieve mid from a method name, use rb_intern().
-
-VALUE rb_funcall2(VALUE recv, ID mid, int argc, VALUE *argv) ::
-
-  Invokes a method, passing arguments by an array of values.
-
-VALUE rb_eval_string(const char *str) ::
-
-  Compiles and executes the string as a Ruby program.
-
-ID rb_intern(const char *name) ::
-
-  Returns ID corresponding to the name.
-
-char *rb_id2name(ID id) ::
-
-  Returns the name corresponding ID.
-
-char *rb_class2name(VALUE klass) ::
-
-  Returns the name of the class.
-
-int rb_respond_to(VALUE object, ID id) ::
-
-  Returns true if the object responds to the message specified by id.
-
-== Instance Variables
-
-VALUE rb_iv_get(VALUE obj, const char *name) ::
-
-  Retrieve the value of the instance variable.  If the name is not
-  prefixed by `@', that variable shall be inaccessible from Ruby.
-
-VALUE rb_iv_set(VALUE obj, const char *name, VALUE val) ::
-
-  Sets the value of the instance variable.
-
-== Control Structure
-
-VALUE rb_block_call(VALUE recv, ID mid, int argc, VALUE * argv, VALUE (*func) (ANYARGS), VALUE data2) ::
-
-  Calls a method on the recv, with the method name specified by the
-  symbol mid, with argc arguments in argv, supplying func as the
-  block. When func is called as the block, it will receive the value
-  from yield as the first argument, and data2 as the second argument.
-  When yielded with multiple values (in C, rb_yield_values(),
-  rb_yield_values2() and rb_yield_splat()), data2 is packed as an Array,
-  whereas yielded values can be gotten via argc/argv of the third/fourth
-  arguments.
-
-[OBSOLETE] VALUE rb_iterate(VALUE (*func1)(), void *arg1, VALUE (*func2)(), void *arg2) ::
-
-  Calls the function func1, supplying func2 as the block.  func1 will be
-  called with the argument arg1.  func2 receives the value from yield as
-  the first argument, arg2 as the second argument.
-
-  When rb_iterate is used in 1.9, func1 has to call some Ruby-level method.
-  This function is obsolete since 1.9; use rb_block_call instead.
-
-VALUE rb_yield(VALUE val) ::
-
-  Evaluates the block with value val.
-
-VALUE rb_rescue(VALUE (*func1)(), VALUE arg1, VALUE (*func2)(), VALUE arg2) ::
-
-  Calls the function func1, with arg1 as the argument.  If an exception
-  occurs during func1, it calls func2 with arg2 as the argument.  The
-  return value of rb_rescue() is the return value from func1 if no
-  exception occurs, from func2 otherwise.
-
-VALUE rb_ensure(VALUE (*func1)(), VALUE arg1, VALUE (*func2)(), VALUE arg2) ::
-
-  Calls the function func1 with arg1 as the argument, then calls func2
-  with arg2 if execution terminated.  The return value from
-  rb_ensure() is that of func1 when no exception occured.
-
-VALUE rb_protect(VALUE (*func) (VALUE), VALUE arg, int *state) ::
-
-  Calls the function func with arg as the argument.  If no exception
-  occured during func, it returns the result of func and *state is zero.
-  Otherwise, it returns Qnil and sets *state to nonzero.  If state is
-  NULL, it is not set in both cases.
-  You have to clear the error info with rb_set_errinfo(Qnil) when
-  ignoring the caught exception.
-
-void rb_jump_tag(int state) ::
-
-  Continues the exception caught by rb_protect() and rb_eval_string_protect().
-  state must be the returned value from those functions.  This function
-  never return to the caller.
-
-void rb_iter_break() ::
-
-  Exits from the current innermost block.  This function never return to
-  the caller.
-
-void rb_iter_break_value(VALUE value) ::
-
-  Exits from the current innermost block with the value.  The block will
-  return the given argument value.  This function never return to the
-  caller.
-
-== Exceptions and Errors
-
-void rb_warn(const char *fmt, ...) ::
-
-  Prints a warning message according to a printf-like format.
-
-void rb_warning(const char *fmt, ...) ::
-
-  Prints a warning message according to a printf-like format, if
-  $VERBOSE is true.
-
-void rb_raise(rb_eRuntimeError, const char *fmt, ...) ::
-
-  Raises RuntimeError.  The fmt is a format string just like printf().
-
-void rb_raise(VALUE exception, const char *fmt, ...) ::
-
-  Raises a class exception.  The fmt is a format string just like printf().
-
-void rb_fatal(const char *fmt, ...) ::
-
-  Raises a fatal error, terminates the interpreter.  No exception handling
-  will be done for fatal errors, but ensure blocks will be executed.
-
-void rb_bug(const char *fmt, ...) ::
-
-  Terminates the interpreter immediately.  This function should be
-  called under the situation caused by the bug in the interpreter.  No
-  exception handling nor ensure execution will be done.
-
-Note: In the format string, %i is used for Object#to_s (or Object#inspect if
-'+' flag is set) output (and related argument must be a VALUE).  For integers
-in format strings, use %d.
-
-== Initialize and Start the Interpreter
-
-The embedding API functions are below (not needed for extension libraries):
-
-void ruby_init() ::
-
-  Initializes the interpreter.
-
-void ruby_options(int argc, char **argv) ::
-
-  Process command line arguments for the interpreter.
-
-void ruby_run() ::
-
-  Starts execution of the interpreter.
-
-void ruby_script(char *name) ::
-
-  Specifies the name of the script ($0).
-
-== Hooks for the Interpreter Events
-
-  void rb_add_event_hook(rb_event_hook_func_t func, rb_event_flag_t events,
-                         VALUE data)
-
-Adds a hook function for the specified interpreter events.
-events should be OR'ed value of:
-
-  RUBY_EVENT_LINE
-  RUBY_EVENT_CLASS
-  RUBY_EVENT_END
-  RUBY_EVENT_CALL
-  RUBY_EVENT_RETURN
-  RUBY_EVENT_C_CALL
-  RUBY_EVENT_C_RETURN
-  RUBY_EVENT_RAISE
-  RUBY_EVENT_ALL
-
-The definition of rb_event_hook_func_t is below:
-
-  typedef void (*rb_event_hook_func_t)(rb_event_t event, VALUE data,
-                                       VALUE self, ID id, VALUE klass)
-
-The third argument `data' to rb_add_event_hook() is passed to the hook
-function as the second argument, which was the pointer to the current
-NODE in 1.8.  See RB_EVENT_HOOKS_HAVE_CALLBACK_DATA below.
-
-  int rb_remove_event_hook(rb_event_hook_func_t func)
-
-Removes the specified hook function.
-
-== Macros for Compatibility
-
-Some macros to check API compatibilities are available by default.
-
-NORETURN_STYLE_NEW ::
-
-  Means that NORETURN macro is functional style instead of prefix.
-
-HAVE_RB_DEFINE_ALLOC_FUNC ::
-
-  Means that function rb_define_alloc_func() is provided, that means the
-  allocation framework is used.  This is same as the result of
-  have_func("rb_define_alloc_func", "ruby.h").
-
-HAVE_RB_REG_NEW_STR ::
-
-  Means that function rb_reg_new_str() is provided, that creates Regexp
-  object from String object.  This is same as the result of
-  have_func("rb_reg_new_str", "ruby.h").
-
-HAVE_RB_IO_T ::
-
-  Means that type rb_io_t is provided.
-
-USE_SYMBOL_AS_METHOD_NAME ::
-
-  Means that Symbols will be returned as method names, e.g.,
-  Module#methods, #singleton_methods and so on.
-
-HAVE_RUBY_*_H ::
-
-  Defined in ruby.h and means corresponding header is available.  For
-  instance, when HAVE_RUBY_ST_H is defined you should use ruby/st.h not
-  mere st.h.
-
-RB_EVENT_HOOKS_HAVE_CALLBACK_DATA ::
-
-  Means that rb_add_event_hook() takes the third argument `data', to be
-  passed to the given event hook function.
-
-/*
- * Local variables:
- * fill-column: 70
- * end:
- */
+Moved to doc/extension.rdoc
diff --git a/README.EXT.ja b/README.EXT.ja
index 932a1c72d0..f884ecbb0e 100644
--- a/README.EXT.ja
+++ b/README.EXT.ja
@@ -1,1595 +1 @@
-# README.EXT.ja -  -*- RDoc -*- created at: Mon Aug  7 16:45:54 JST 1995
-
-Rubyの拡張ライブラリの作り方を説明します．
-
-= 基礎知識
-
-Cの変数には型があり，データには型がありません．ですから，た
-とえばポインタをintの変数に代入すると，その値は整数として取
-り扱われます．逆にRubyの変数には型がなく，データに型がありま
-す．この違いのため，CとRubyは相互に変換しなければ，お互いの
-データをアクセスできません．
-
-RubyのデータはVALUEというCの型で表現されます．VALUE型のデー
-タはそのデータタイプを自分で知っています．このデータタイプと
-いうのはデータ(オブジェクト)の実際の構造を意味していて，Ruby
-のクラスとはまた違ったものです．
-
-VALUEからCにとって意味のあるデータを取り出すためには
-
-1. VALUEのデータタイプを知る
-2. VALUEをCのデータに変換する
-
-の両方が必要です．(1)を忘れると間違ったデータの変換が行われ
-て，最悪プログラムがcore dumpします．
-
-== データタイプ
-
-Rubyにはユーザが使う可能性のある以下のタイプがあります．
-
-T_NIL      :: nil
-T_OBJECT   :: 通常のオブジェクト
-T_CLASS    :: クラス
-T_MODULE   :: モジュール
-T_FLOAT    :: 浮動小数点数
-T_STRING   :: 文字列
-T_REGEXP   :: 正規表現
-T_ARRAY    :: 配列
-T_HASH     :: 連想配列
-T_STRUCT   :: (Rubyの)構造体
-T_BIGNUM   :: 多倍長整数
-T_FIXNUM   :: Fixnum(31bitまたは63bit長整数)
-T_COMPLEX  :: 複素数
-T_RATIONAL :: 有理数
-T_FILE     :: 入出力
-T_TRUE     :: 真
-T_FALSE    :: 偽
-T_DATA     :: データ
-T_SYMBOL   :: シンボル
-
-その他に内部で利用されている以下のタイプがあります．
-
-  T_ICLASS
-  T_MATCH
-  T_UNDEF
-  T_NODE
-  T_ZOMBIE
-
-ほとんどのタイプはCの構造体で実装されています．
-
-== VALUEのデータタイプをチェックする
-
-ruby.hではTYPE()というマクロが定義されていて，VALUEのデータ
-タイプを知ることが出来ます．TYPE()マクロは上で紹介したT_XXXX
-の形式の定数を返します．VALUEのデータタイプに応じて処理する
-場合には，TYPE()の値で分岐することになります．
-
-  switch (TYPE(obj)) {
-    case T_FIXNUM:
-      /* FIXNUMの処理 */
-      break;
-    case T_STRING:
-      /* 文字列の処理 */
-      break;
-    case T_ARRAY:
-      /* 配列の処理 */
-      break;
-    default:
-      /* 例外を発生させる */
-      rb_raise(rb_eTypeError, "not valid value");
-      break;
-  }
-
-それとデータタイプをチェックして，正しくなければ例外を発生す
-る関数が用意されています．
-
-  void Check_Type(VALUE value, int type)
-
-この関数はvalueがtypeで無ければ，例外を発生させます．引数と
-して与えられたVALUEのデータタイプが正しいかどうかチェックす
-るためには，この関数を使います．
-
-FIXNUMとNILに関してはより高速な判別マクロが用意されています．
-
-  FIXNUM_P(obj)
-  NIL_P(obj)
-
-== VALUEをCのデータに変換する
-
-データタイプがT_NIL，T_FALSE，T_TRUEである時，データはそれぞ
-れnil，false，trueです．このデータタイプのオブジェクトはひと
-つずつしか存在しません．
-
-データタイプがT_FIXNUMの時，これは31bitまたは63bitのサイズを
-持つ整数です．longのサイズが32bitのプラットフォームであれば
-31bitに，longのサイズが64bitのプラットフォームであれば63bit
-になります. FIXNUM を C の整数に変換するためにはマクロ
-「FIX2INT()」または「FIX2LONG()」を使います．これらのマクロ
-を使用する際には事前にデータタイプがFIXNUMであることを確認す
-る必要がありますが，比較的高速に変換を行うことができます．ま
-た，「FIX2LONG()」は例外を発生しませんが，「FIX2INT()」は変
-換結果がintのサイズに収まらない場合には例外を発生します．
-それから，FIXNUMに限らずRubyのデータを整数に変換する
-「NUM2INT()」および「NUM2LONG()」というマクロがあります．こ
-れらのマクロはマクロはデータタイプのチェック無しで使えます
-(整数に変換できない場合には例外が発生する)．同様にチェック無
-で使える変換マクロはdoubleを取り出す「NUM2DBL()」があります．
-
-char* を取り出す場合， StringValue() と StringValuePtr()
-を使います．
-StringValue(var) は var が String
-であれば何もせず，そうでなければ var を var.to_str() の結果
-に置き換えるマクロ，StringValuePtr(var) は同様に var を
-String に置き換えてから var のバイト列表現に対する char* を
-返すマクロです．var の内容を直接置き換える処理が入るので，
-var は lvalue である必要があります．
-また，StringValuePtr() に類似した StringValueCStr() というマ
-クロもあります．StringValueCStr(var) は var を String に置き
-換えてから var の文字列表現に対する char* を返します．返され
-る文字列の末尾には nul 文字が付加されます．なお，途中に nul
-文字が含まれる場合は ArgumentError が発生します．
-一方，StringValuePtr() では，末尾に nul 文字がある保証はなく，
-途中に nul 文字が含まれている可能性もあります．
-
-それ以外のデータタイプは対応するCの構造体があります．対応す
-る構造体のあるVALUEはそのままキャスト(型変換)すれば構造体の
-ポインタに変換できます．
-
-構造体は「struct RXxxxx」という名前でruby.hで定義されていま
-す．例えば文字列は「struct RString」です．実際に使う可能性が
-あるのは文字列と配列くらいだと思います．
-
-ruby.hでは構造体へキャストするマクロも「RXXXXX()」(全部大文
-字にしたもの)という名前で提供されています(例: RSTRING())．
-
-構造体からデータを取り出すマクロが提供されています．文字列
-strの長さを得るためには「RSTRING_LEN(str)」とし，文字列strを
-char*として得るためには「RSTRING_PTR(str)」とします．配列の
-場合には，それぞれ「RARRAY_LEN(ary)」，「RARRAY_PTR(ary)」と
-なります．
-
-Rubyの構造体を直接アクセスする時に気をつけなければならないこ
-とは，配列や文字列の構造体の中身は参照するだけで，直接変更し
-ないことです．直接変更した場合，オブジェクトの内容の整合性が
-とれなくなって，思わぬバグの原因になります．
-
-== CのデータをVALUEに変換する
-
-VALUEの実際の構造は
-
-FIXNUMの場合 ::
-
-  1bit左シフトして，LSBを立てる．
-
-その他のポインタの場合 ::
-
-  そのままVALUEにキャストする．
-
-となっています．よって，LSBをチェックすればVALUEがFIXNUMかど
-うかわかるわけです(ポインタのLSBが立っていないことを仮定して
-いる)．
-
-ですから，FIXNUM以外のRubyのオブジェクトの構造体は単にVALUE
-にキャストするだけでVALUEに変換出来ます．ただし，任意の構造
-体がVALUEにキャスト出来るわけではありません．キャストするの
-はRubyの知っている構造体(ruby.hで定義されているstruct RXxxx
-のもの)だけです．
-
-FIXNUMに関しては変換マクロを経由する必要があります．Cの整数
-からVALUEに変換するマクロは以下のものがあります．必要に応じ
-て使い分けてください．
-
-INT2FIX() :: もとの整数が31bitまたは63bit以内に収まる自信
-      	     がある時
-INT2NUM() :: 任意の整数からVALUEへ
-
-INT2NUM()は整数がFIXNUMの範囲に収まらない場合，Bignumに変換
-してくれます(が，少し遅い)．
-
-== Rubyのデータを操作する
-
-先程も述べた通り，Rubyの構造体をアクセスする時に内容の更新を
-行うことは勧められません．で，Rubyのデータを操作する時には
-Rubyが用意している関数を用いてください．
-
-ここではもっとも使われるであろう文字列と配列の生成/操作を行
-い関数をあげます(全部ではないです)．
-
-=== 文字列に対する関数
-
-rb_str_new(const char *ptr, long len) ::
-
-  新しいRubyの文字列を生成する．
-
-rb_str_new2(const char *ptr)
-rb_str_new_cstr(const char *ptr)
-
-  Cの文字列からRubyの文字列を生成する．この関数の機能は
-  rb_str_new(ptr, strlen(ptr))と同等である．
-
-rb_tainted_str_new(const char *ptr, long len)
-
-  汚染マークが付加された新しいRubyの文字列を生成する．外部
-  からのデータに基づく文字列には汚染マークが付加されるべき
-  である．
-
-rb_tainted_str_new2(const char *ptr)
-rb_tainted_str_new_cstr(const char *ptr)
-
-  Cの文字列から汚染マークが付加されたRubyの文字列を生成する．
-
-rb_sprintf(const char *format, ...)
-rb_vsprintf(const char *format, va_list ap)
-
-  Cの文字列formatと続く引数をprintf(3)のフォーマットにしたがって
-  整形し，Rubyの文字列を生成する．
-
-  注意: %iはObject#to_s('+'フラグが指定されているときはObject#inspect)を
-  使ったVALUEの出力に使用されているため，整数には%dを使用すること．
-
-rb_str_cat(VALUE str, const char *ptr, long len)
-
-  Rubyの文字列strにlenバイトの文字列ptrを追加する．
-
-rb_str_cat2(VALUE str, const char* ptr)
-
-  Rubyの文字列strにCの文字列ptrを追加する．この関数の機能は
-  rb_str_cat(str, ptr, strlen(ptr))と同等である．
-
-rb_str_catf(VALUE str, const char* format, ...)
-rb_str_vcatf(VALUE str, const char* format, va_list ap)
-
-  Cの文字列formatと続く引数をprintf(3)のフォーマットにしたがって
-  整形し，Rubyの文字列strに追加する．この関数の機能は，それぞれ
-  rb_str_cat2(str, rb_sprintf(format, ...)) や
-  rb_str_cat2(str, rb_vsprintf(format, ap)) と同等である．
-
-rb_enc_str_new(const char *ptr, long len, rb_encoding *enc)
-
-  指定されたエンコーディングでRubyの文字列を生成する.
-
-rb_usascii_str_new(const char *ptr, long len)
-rb_usascii_str_new_cstr(const char *ptr)
-
-  エンコーディングがUS-ASCIIのRubyの文字列を生成する.
-
-rb_str_resize(VALUE str, long len)
-
-  Rubyの文字列のサイズをlenバイトに変更する．strの長さは前
-  以てセットされていなければならない．lenが元の長さよりも短
-  い時は，lenバイトを越えた部分の内容は捨てられる．lenが元
-  の長さよりも長い時は，元の長さを越えた部分の内容は保存さ
-  れないでゴミになるだろう．この関数の呼び出しによって
-  RSTRING_PTR(str)が変更されるかもしれないことに注意．
-
-rb_str_set_len(VALUE str, long len)
-
-  Rubyの文字列のサイズをlenバイトにセットする．strが変更可
-  能でなければ例外が発生する．RSTRING_LEN(str)とは無関係に，
-  lenバイトまでの内容は保存される．lenはstrの容量を越えてい
-  てはならない．
-
-
-== 配列に対する関数
-
-rb_ary_new()
-
-  要素が0の配列を生成する．
-
-rb_ary_new2(long len)
-
-  要素が0の配列を生成する．len要素分の領域をあらかじめ割り
-  当てておく．
-
-rb_ary_new3(long n, ...)
-
-  引数で指定したn要素を含む配列を生成する．
-
-rb_ary_new4(long n, VALUE *elts)
-
-  配列で与えたn要素の配列を生成する．
-
-rb_ary_to_ary(VALUE obj)
-
-  オブジェクトを配列に変換する.
-  Object#to_aryと同等である.
-
-他にも配列を操作する関数が多数ある. これらは
-引数aryに配列を渡さなければならない. さもないと
-コアを吐く.
-
-rb_ary_aref(argc, VALUE *argv, VALUE ary)
-
-  Array#[]と同等.
-
-rb_ary_entry(VALUE ary, long offset)
-
-  ary[offset]
-
-rb_ary_subseq(VALUE ary, long beg, long len)
-
-  ary[beg, len]
-
-rb_ary_push(VALUE ary, VALUE val)
-rb_ary_pop(VALUE ary)
-rb_ary_shift(VALUE ary)
-rb_ary_unshift(VALUE ary, VALUE val)
-
-rb_ary_cat(VALUE ary, const VALUE *ptr, long len)
-
-  配列aryにptrからlen個のオブジェクトを追加する．
-
-= Rubyの機能を使う
-
-原理的にRubyで書けることはCでも書けます．RubyそのものがCで記
-述されているんですから，当然といえば当然なんですけど．ここで
-はRubyの拡張に使うことが多いだろうと予測される機能を中心に紹
-介します．
-
-== Rubyに機能を追加する
-
-Rubyで提供されている関数を使えばRubyインタプリタに新しい機能
-を追加することができます．Rubyでは以下の機能を追加する関数が
-提供されています．
-
-* クラス，モジュール
-* メソッド，特異メソッドなど
-* 定数
-
-では順に紹介します．
-
-=== クラス/モジュール定義
-
-クラスやモジュールを定義するためには，以下の関数を使います．
-
-  VALUE rb_define_class(const char *name, VALUE super)
-  VALUE rb_define_module(const char *name)
-
-これらの関数は新しく定義されたクラスやモジュールを返します．
-メソッドや定数の定義にこれらの値が必要なので，ほとんどの場合
-は戻り値を変数に格納しておく必要があるでしょう．
-
-クラスやモジュールを他のクラスの内部にネストして定義する時に
-は以下の関数を使います．
-
-  VALUE rb_define_class_under(VALUE outer, const char *name, VALUE super)
-  VALUE rb_define_module_under(VALUE outer, const char *name)
-
-=== メソッド/特異メソッド定義
-
-メソッドや特異メソッドを定義するには以下の関数を使います．
-
-  void rb_define_method(VALUE klass, const char *name,
-                        VALUE (*func)(), int argc)
-
-  void rb_define_singleton_method(VALUE object, const char *name,
-                                  VALUE (*func)(), int argc)
-
-
-念のため説明すると「特異メソッド」とは，その特定のオブジェク
-トに対してだけ有効なメソッドです．RubyではよくSmalltalkにお
-けるクラスメソッドとして，クラスに対する特異メソッドが使われ
-ます．
-
-これらの関数の argcという引数はCの関数へ渡される引数の数(と
-形式)を決めます．argcが0以上の時は関数に引き渡す引数の数を意
-味します．16個以上の引数は使えません(が，要りませんよね，そ
-んなに)．実際の関数には先頭の引数としてselfが与えられますの
-で，指定した数より1多い引数を持つことになります．
-
-argcが負の時は引数の数ではなく，形式を指定したことになります．
-argcが-1の時は引数を配列に入れて渡されます．argcが-2の時は引
-数はRubyの配列として渡されます．
-
-メソッドを定義する関数はまだいくつかあります. ひとつはメソッド
-名としてIDを取ります. IDについては2.2.2を参照.
-
-  void rb_define_method_id(VALUE klass, ID name,
-                           VALUE (*func)(ANYARGS), int argc)
-
-private/protectedなメソッドを定義するふたつの関数があります.
-
-  void rb_define_private_method(VALUE klass, const char *name,
-				VALUE (*func)(), int argc)
-  void rb_define_protected_method(VALUE klass, const char *name,
-			          VALUE (*func)(), int argc)
-
-privateメソッドとは関数形式でしか呼び出すことの出来ないメソッ
-ドです．
-
-最後に， rb_define_module関数はモジュール関数を定義します．
-モジュール関数とはモジュールの特異メソッドであり，同時に
-privateメソッドでもあるものです．例をあげるとMathモジュール
-のsqrt()などがあげられます．このメソッドは
-
-  Math.sqrt(4)
-
-という形式でも
-
-  include Math
-  sqrt(4)
-
-という形式でも使えます．モジュール関数を定義する関数は以下の
-通りです．
-
-  void rb_define_module_function(VALUE module, const char *name,
-		                 VALUE (*func)(), int argc)
-
-関数的メソッド(Kernelモジュールのprivate method)を定義するた
-めの関数は以下の通りです．
-
-  void rb_define_global_function(const char *name, VALUE (*func)(), int argc)
-
-
-メソッドの別名を定義するための関数は以下の通りです．
-
-  void rb_define_alias(VALUE module, const char* new, const char* old);
-
-属性の取得・設定メソッドを定義するには
-
-  void rb_define_attr(VALUE klass, const char *name, int read, int write)
-
-クラスメソッドallocateを定義したり削除したりするための関数は
-以下の通りです．
-
-  void rb_define_alloc_func(VALUE klass, VALUE (*func)(VALUE klass));
-  void rb_undef_alloc_func(VALUE klass);
-
-funcはクラスを引数として受け取って，新しく割り当てられたイン
-スタンスを返さなくてはなりません．このインスタンスは，外部リ
-ソースなどを含まない，できるだけ「空」のままにしておいたほう
-がよいでしょう．
-
-=== 定数定義
-
-拡張ライブラリが必要な定数はあらかじめ定義しておいた方が良い
-でしょう．定数を定義する関数は二つあります．
-
-  void rb_define_const(VALUE klass, const char *name, VALUE val)
-  void rb_define_global_const(const char *name, VALUE val)
-
-前者は特定のクラス/モジュールに属する定数を定義するもの，後
-者はグローバルな定数を定義するものです．
-
-== Rubyの機能をCから呼び出す
-
-既に『1.5 Rubyのデータを操作する』で一部紹介したような関数を
-使えば，Rubyの機能を実現している関数を直接呼び出すことが出来
-ます．
-
-# このような関数の一覧表はいまのところありません．ソースを見
-# るしかないですね．
-
-それ以外にもRubyの機能を呼び出す方法はいくつかあります．
-
-=== Rubyのプログラムをevalする
-
-CからRubyの機能を呼び出すもっとも簡単な方法として，文字列で
-与えられたRubyのプログラムを評価する以下の関数があります．
-
-  VALUE rb_eval_string(const char *str)
-
-この評価は現在の環境で行われます．つまり，現在のローカル変数
-などを受け継ぎます．
-
-評価は例外を発生するかもしれないことに注意しましょう. より安全
-な関数もあります.
-
-  VALUE rb_eval_string_protect(const char *str, int *state)
-
-この関数はエラーが発生するとnilを返します．そして，成功時には
-*stateはゼロに，さもなくば非ゼロになります．
-
-=== IDまたはシンボル
-
-Cから文字列を経由せずにRubyのメソッドを呼び出すこともできま
-す．その前に，Rubyインタプリタ内でメソッドや変数名を指定する
-時に使われているIDについて説明しておきましょう．
-
-IDとは変数名，メソッド名を表す整数です．Rubyの中では
-
- :識別子
-
-または
-
- :"任意の文字列"
-
-でアクセスできます．Cからこの整数を得るためには関数
-
-  rb_intern(const char *name)
-  rb_intern_str(VALUE name)
-
-を使います．Rubyから引数として与えられたシンボル(または文字
-列)をIDに変換するには以下の関数を使います．
-
-  rb_to_id(VALUE symbol)
-  rb_check_id(volatile VALUE *name)
-  rb_check_id_cstr(const char *name, long len, rb_encoding *enc)
-
-もし引数がシンボルでも文字列でもなければ、to_strメソッドで文
-字列に変換しようとします．第二の関数はその変換結果を*nameに保
-存し,その名前が既知のシンボルでない場合は0を返します．この関
-数が0以外を返した場合は*nameは常にシンボルか文字列であり、0を
-返した場合は常に文字列です．第三の関数はRubyの文字列ではなく
-NUL終端されたCの文字列を使います．
-
-=== CからRubyのメソッドを呼び出す
-
-Cから文字列を経由せずにRubyのメソッドを呼び出すためには以下
-の関数を使います．
-
-  VALUE rb_funcall(VALUE recv, ID mid, int argc, ...)
-
-この関数はオブジェクトrecvのmidで指定されるメソッドを呼び出
-します．その他に引数の指定の仕方が違う以下の関数もあります．
-
-  VALUE rb_funcall2(VALUE recv, ID mid, int argc, VALUE *argv)
-  VALUE rb_apply(VALUE recv, ID mid, VALUE args)
-
-applyには引数としてRubyの配列を与えます．
-
-=== 変数/定数を参照/更新する
-
-Cから関数を使って参照・更新できるのは，定数，インスタンス変
-数です．大域変数は一部のものはCの大域変数としてアクセスでき
-ます．ローカル変数を参照する方法は公開していません．
-
-オブジェクトのインスタンス変数を参照・更新する関数は以下の通
-りです．
-
-  VALUE rb_ivar_get(VALUE obj, ID id)
-  VALUE rb_ivar_set(VALUE obj, ID id, VALUE val)
-
-idはrb_intern()で得られるものを使ってください．
-
-定数を参照するには以下の関数を使ってください．
-
-  VALUE rb_const_get(VALUE obj, ID id)
-
-定数を新しく定義するためには『2.1.3 定数定義』で紹介さ
-れている関数を使ってください．
-
-= RubyとCとの情報共有
-
-C言語とRubyの間で情報を共有する方法について解説します．
-
-== Cから参照できるRubyの定数
-
-以下のRubyの定数はCのレベルから参照できます．
-
-  Qtrue
-  Qfalse
-
-真偽値．QfalseはC言語でも偽とみなされます(つまり0)．
-
-  Qnil
-
-C言語から見た「nil」．
-
-== CとRubyで共有される大域変数
-
-CとRubyで大域変数を使って情報を共有できます．共有できる大域
-変数にはいくつかの種類があります．そのなかでもっとも良く使わ
-れると思われるのはrb_define_variable()です．
-
-  void rb_define_variable(const char *name, VALUE *var)
-
-この関数はRubyとCとで共有する大域変数を定義します．変数名が
-`$'で始まらない時には自動的に追加されます．この変数の値を変
-更すると自動的にRubyの対応する変数の値も変わります．
-
-またRuby側からは更新できない変数もあります．このread onlyの
-変数は以下の関数で定義します．
-
-  void rb_define_readonly_variable(const char *name, VALUE *var)
-
-これら変数の他にhookをつけた大域変数を定義できます．hook付き
-の大域変数は以下の関数を用いて定義します．hook付き大域変数の
-値の参照や設定はhookで行う必要があります．
-
-  void rb_define_hooked_variable(const char *name, VALUE *var,
-				 VALUE (*getter)(), void (*setter)())
-
-この関数はCの関数によってhookのつけられた大域変数を定義しま
-す．変数が参照された時には関数getterが，変数に値がセットされ
-た時には関数setterが呼ばれる．hookを指定しない場合はgetterや
-setterに0を指定します．
-# getterもsetterも0ならばrb_define_variable()と同じになる．
-
-getterとsetterの仕様は次の通りです．
-
-  VALUE (*getter)(ID id, VALUE *var);
-  void (*setter)(VALUE val, ID id, VALUE *var);
-
-
-それから，対応するCの変数を持たないRubyの大域変数を定義する
-こともできます. その変数の値はフック関数のみによって取得・設定
-されます.
-
-  void rb_define_virtual_variable(const char *name,
-				  VALUE (*getter)(), void (*setter)())
-
-この関数によって定義されたRubyの大域変数が参照された時には
-getterが，変数に値がセットされた時にはsetterが呼ばれます．
-
-getterとsetterの仕様は以下の通りです．
-
-  (*getter)(ID id);
-  (*setter)(VALUE val, ID id);
-
-== CのデータをRubyオブジェクトにする
-
-Cの世界で定義されたデータ(構造体)をRubyのオブジェクトとして
-取り扱いたい場合がありえます．このような場合には，Dataという
-RubyオブジェクトにCの構造体(へのポインタ)をくるむことでRuby
-オブジェクトとして取り扱えるようになります．
-
-Dataオブジェクトを生成して構造体をRubyオブジェクトにカプセル
-化するためには，以下のマクロを使います．
-
-  Data_Wrap_Struct(klass, mark, free, sval)
-
-このマクロの戻り値は生成されたDataオブジェクトです．
-
-klassはこのDataオブジェクトのクラスです．markはこの構造体が
-Rubyのオブジェクトへの参照がある時に使う関数です．そのような
-参照を含まない時には0を指定します．
-
-# そのような参照は勧められません．
-
-freeはこの構造体がもう不要になった時に呼ばれる関数です．この
-関数がガーベージコレクタから呼ばれます．これが-1の場合は，単
-純に開放されます．
-
-markおよびfree関数はGC実行中に呼び出されます.
-なお, GC実行中はRubyオブジェクトのアロケーションは禁止されま
-す. よって, markおよびfree関数でRubyオブジェクトのアロケーシ
-ョンは行わないでください.
-
-Cの構造体の割当とDataオブジェクトの生成を同時に行うマクロと
-して以下のものが提供されています．
-
-  Data_Make_Struct(klass, type, mark, free, sval)
-
-このマクロの戻り値は生成されたDataオブジェクトです．このマク
-ロは以下の式のように働きます:
-
-  (sval = ALLOC(type), Data_Wrap_Struct(klass, mark, free, sval))
-
-klass, mark, freeはData_Wrap_Structと同じ働きをします．type
-は割り当てるC構造体の型です．割り当てられた構造体は変数sval
-に代入されます．この変数の型は (type*) である必要があります．
-
-Dataオブジェクトからポインタを取り出すのは以下のマクロを用い
-ます．
-
-  Data_Get_Struct(obj, type, sval)
-
-Cの構造体へのポインタは変数svalに代入されます．
-
-これらのDataの使い方はちょっと分かりにくいので，後で説明する
-例題を参照してください．
-
-= 例題 - dbmパッケージを作る
-
-ここまでの説明でとりあえず拡張ライブラリは作れるはずです．
-Rubyのextディレクトリにすでに含まれているdbmライブラリを例に
-して段階的に説明します．
-
-== ディレクトリを作る
-
-  % mkdir ext/dbm
-
-Ruby 1.1からは任意のディレクトリでダイナミックライブラリを作
-ることができるようになりました．Rubyに静的にリンクする場合に
-はRubyを展開したディレクトリの下，extディレクトリの中に拡張
-ライブラリ用のディレクトリを作る必要があります．名前は適当に
-選んで構いません．
-
-== 設計する
-
-まあ，当然なんですけど，どういう機能を実現するかどうかまず設
-計する必要があります．どんなクラスをつくるか，そのクラスには
-どんなメソッドがあるか，クラスが提供する定数などについて設計
-します．
-
-== Cコードを書く
-
-拡張ライブラリ本体となるC言語のソースを書きます．C言語のソー
-スがひとつの時には「ライブラリ名.c」を選ぶと良いでしょう．C
-言語のソースが複数の場合には逆に「ライブラリ名.c」というファ
-イル名は避ける必要があります．オブジェクトファイルとモジュー
-ル生成時に中間的に生成される「ライブラリ名.o」というファイル
-とが衝突するからです．また，後述する mkmf ライブラリのいくつ
-かの関数がコンパイルを要するテストのために「conftest.c」とい
-うファイル名を使用することに注意してください．ソースファイル
-名として「conftest.c」を使用してはなりません．
-
-Rubyは拡張ライブラリをロードする時に「Init_ライブラリ名」と
-いう関数を自動的に実行します．dbmライブラリの場合「Init_dbm」
-です．この関数の中でクラス，モジュール，メソッド，定数などの
-定義を行います．dbm.cから一部引用します．
-
-  void
-  Init_dbm(void)
-  {
-      /* DBMクラスを定義する */
-      cDBM = rb_define_class("DBM", rb_cObject);
-      /* DBMはEnumerateモジュールをインクルードする */
-      rb_include_module(cDBM, rb_mEnumerable);
-  
-      /* DBMクラスのクラスメソッドopen(): 引数はCの配列で受ける */
-      rb_define_singleton_method(cDBM, "open", fdbm_s_open, -1);
-  
-      /* DBMクラスのメソッドclose(): 引数はなし */
-      rb_define_method(cDBM, "close", fdbm_close, 0);
-      /* DBMクラスのメソッド[]: 引数は1個 */
-      rb_define_method(cDBM, "[]", fdbm_fetch, 1);
-
-      /* ... */
-  
-      /* DBMデータを格納するインスタンス変数名のためのID */
-      id_dbm = rb_intern("dbm");
-  }
-
-DBMライブラリはdbmのデータと対応するオブジェクトになるはずで
-すから，Cの世界のdbmをRubyの世界に取り込む必要があります．
-
-dbm.cではData_Make_Structを以下のように使っています．
-
-  struct dbmdata {
-      int  di_size;
-      DBM *di_dbm;
-  };
-  
-  
-  obj = Data_Make_Struct(klass, struct dbmdata, 0, free_dbm, dbmp);
-
-ここではdbmstruct構造体へのポインタをDataにカプセル化してい
-ます．DBM*を直接カプセル化しないのはclose()した時の処理を考
-えてのことです．
-
-Dataオブジェクトからdbmstruct構造体のポインタを取り出すため
-に以下のマクロを使っています．
-
-  #define GetDBM(obj, dbmp) {\
-      Data_Get_Struct(obj, struct dbmdata, dbmp);\
-      if (dbmp->di_dbm == 0) closed_dbm();\
-  }
-
-ちょっと複雑なマクロですが，要するにdbmdata構造体のポインタ
-の取り出しと，closeされているかどうかのチェックをまとめてい
-るだけです．
-
-DBMクラスにはたくさんメソッドがありますが，分類すると3種類の
-引数の受け方があります．ひとつは引数の数が固定のもので，例と
-してはdeleteメソッドがあります．deleteメソッドを実装している
-fdbm_delete()はこのようになっています．
-
-  static VALUE
-  fdbm_delete(VALUE obj, VALUE keystr)
-  {
-      /* ... */
-  }
-
-引数の数が固定のタイプは第1引数がself，第2引数以降がメソッド
-の引数となります．
-
-引数の数が不定のものはCの配列で受けるものとRubyの配列で受け
-るものとがあります．dbmライブラリの中で，Cの配列で受けるもの
-はDBMのクラスメソッドであるopen()です．これを実装している関
-数fdbm_s_open()はこうなっています．
-
-  static VALUE
-  fdbm_s_open(int argc, VALUE *argv, VALUE klass)
-  {
-      /* ... */
-
-      if (rb_scan_args(argc, argv, "11", &file, &vmode) == 1) {
-  	mode = 0666;		/* default value */
-      }
-
-      /* ... */
-  }
-
-このタイプの関数は第1引数が与えられた引数の数，第2引数が与え
-られた引数の入っている配列になります．selfは第3引数として与
-えられます．
-
-この配列で与えられた引数を解析するための関数がopen()でも使わ
-れているrb_scan_args()です．第3引数に指定したフォーマットに従
-い，第4変数以降に指定したVALUEへの参照に値を代入してくれま
-す．
-
-
-引数をRubyの配列として受け取るメソッドの例には
-Thread#initializeがあります．実装はこうです．
-
-  static VALUE
-  thread_initialize(VALUE thread, VALUE args)
-  {
-      /* ... */
-  }
-
-第1引数はself，第2引数はRubyの配列です．
-
-*注意事項*
-
-Rubyと共有はしないがRubyのオブジェクトを格納する可能性のある
-Cの大域変数は以下の関数を使ってRubyインタプリタに変数の存在
-を教えてあげてください．でないとGCでトラブルを起こします．
-
-  void rb_global_variable(VALUE *var)
-
-== extconf.rbを用意する
-
-Makefileを作る場合の雛型になるextconf.rbというファイルを作り
-ます．extconf.rbはライブラリのコンパイルに必要な条件のチェッ
-クなどを行うことが目的です．まず，
-
-  require 'mkmf'
-
-をextconf.rbの先頭に置きます．extconf.rbの中では以下のRuby関
-数を使うことが出来ます．
-
-  have_library(lib, func): ライブラリの存在チェック
-  have_func(func, header): 関数の存在チェック
-  have_header(header): ヘッダファイルの存在チェック
-  create_makefile(target[, target_prefix]): Makefileの生成
-
-以下の変数を使うことができます．
-
-  $CFLAGS: コンパイル時に追加的に指定するフラグ(-Oなど)
-  $CPPFLAGS: プリプロセッサに追加的に指定するフラグ(-Iや-Dなど)
-  $LDFLAGS: リンク時に追加的に指定するフラグ(-Lなど)
-  $objs: リンクされるオブジェクトファイル名のリスト
-
-オブジェクトファイルのリストは，通常はソースファイルを検索し
-て自動的に生成されますが，makeの途中でソースを生成するような
-場合は明示的に指定する必要があります．
-
-ライブラリをコンパイルする条件が揃わず，そのライブラリをコン
-パイルしない時にはcreate_makefileを呼ばなければMakefileは生
-成されず，コンパイルも行われません．
-
-== dependを用意する
-
-もし，ディレクトリにdependというファイルが存在すれば，
-Makefileが依存関係をチェックしてくれます．
-
-  % gcc -MM *.c > depend
-
-などで作ることが出来ます．あって損は無いでしょう．
-
-== Makefileを生成する
-
-Makefileを実際に生成するためには
-
-  ruby extconf.rb
-
-とします．extconf.rbに require 'mkmf' の行がない場合にはエラー
-になりますので，引数を追加して
-
-  ruby -r mkmf extconf.rb
-
-としてください．
-
-site_ruby ディレクトリでなく，
-vendor_ruby ディレクトリにインストールする場合には
-以下のように --vendor オプションを加えてください．
-
-  ruby extconf.rb --vendor
-
-ディレクトリをext以下に用意した場合にはRuby全体のmakeの時に
-自動的にMakefileが生成されますので，このステップは不要です．
-
-== makeする
-
-動的リンクライブラリを生成する場合にはその場でmakeしてくださ
-い．必要であれば make install でインストールされます．
-
-ext以下にディレクトリを用意した場合は，Rubyのディレクトリで
-makeを実行するとMakefileを生成からmake，必要によってはそのモ
-ジュールのRubyへのリンクまで自動的に実行してくれます．
-extconf.rbを書き換えるなどしてMakefileの再生成が必要な時はま
-たRubyディレクトリでmakeしてください．
-
-拡張ライブラリはmake installでRubyライブラリのディレクトリの
-下にコピーされます．もし拡張ライブラリと協調して使うRubyで記
-述されたプログラムがあり，Rubyライブラリに置きたい場合には，
-拡張ライブラリ用のディレクトリの下に lib というディレクトリ
-を作り，そこに 拡張子 .rb のファイルを置いておけば同時にイン
-ストールされます．
-
-== デバッグ
-
-まあ，デバッグしないと動かないでしょうね．ext/Setupにディレ
-クトリ名を書くと静的にリンクするのでデバッガが使えるようにな
-ります．その分コンパイルが遅くなりますけど．
-
-== できあがり
-
-後はこっそり使うなり，広く公開するなり，売るなり，ご自由にお
-使いください．Rubyの作者は拡張ライブラリに関して一切の権利を
-主張しません．
-
-= Appendix A. Rubyのソースコードの分類
-
-Rubyのソースはいくつかに分類することが出来ます．このうちクラ
-スライブラリの部分は基本的に拡張ライブラリと同じ作り方になっ
-ています．これらのソースは今までの説明でほとんど理解できると
-思います．
-
-== Ruby言語のコア
-
-class.c    :: クラスとモジュール
-error.c    :: 例外クラスと例外機構
-gc.c       :: 記憶領域管理
-load.c     :: ライブラリのロード
-object.c   :: オブジェクト
-variable.c :: 変数と定数
-
-== Rubyの構文解析器
-
-  parse.y      : 字句解析器と構文定義
-    -> parse.c : 自動生成
-  keywords     : 予約語
-    -> lex.c   : 自動生成
-
-== Rubyの評価器 (通称YARV)
-  compile.c
-  eval.c
-  eval_error.c
-  eval_jump.c
-  eval_safe.c
-  insns.def           : 仮想機械語の定義
-  iseq.c              : VM::ISeqの実装
-  thread.c            : スレッド管理とコンテキスト切り替え
-  thread_win32.c      : スレッド実装
-  thread_pthread.c    : 同上
-  vm.c
-  vm_dump.c
-  vm_eval.c
-  vm_exec.c
-  vm_insnhelper.c
-  vm_method.c
-
-  opt_insns_unif.def  : 命令融合
-  opt_operand.def     : 最適化のための定義
-
-    -> insn*.inc      : 自動生成
-    -> opt*.inc       : 自動生成
-    -> vm.inc         : 自動生成
-
-== 正規表現エンジン (鬼車)
-
-  regex.c
-  regcomp.c
-  regenc.c
-  regerror.c
-  regexec.c
-  regparse.c
-  regsyntax.c
-
-== ユーティリティ関数
-
-debug.c    :: Cデバッガ用のデバッグシンボル
-dln.c      :: 動的ローディング
-st.c       :: 汎用ハッシュ表
-strftime.c :: 時刻整形
-util.c     :: その他のユーティリティ
-
-== Rubyコマンドの実装
-
-  dmyext.c
-  dmydln.c
-  dmyencoding.c
-  id.c
-  inits.c
-  main.c
-  ruby.c
-  version.c
-
-  gem_prelude.rb
-  prelude.rb
-
-== クラスライブラリ
-
-array.c      :: Array
-bignum.c     :: Bignum
-compar.c     :: Comparable
-complex.c    :: Complex
-cont.c       :: Fiber, Continuation
-dir.c        :: Dir
-enum.c       :: Enumerable
-enumerator.c :: Enumerator
-file.c       :: File
-hash.c       :: Hash
-io.c         :: IO
-marshal.c    :: Marshal
-math.c       :: Math
-numeric.c    :: Numeric, Integer, Fixnum, Float
-pack.c       :: Array#pack, String#unpack
-proc.c       :: Binding, Proc
-process.c    :: Process
-random.c     :: 乱数
-range.c      :: Range
-rational.c   :: Rational
-re.c         :: Regexp, MatchData
-signal.c     :: Signal
-sprintf.c    :: String#sprintf
-string.c     :: String
-struct.c     :: Struct
-time.c       :: Time
-defs/known_errors.def :: 例外クラス Errno::*
--> known_errors.inc   :: 自動生成
-
-== 多言語化
-
-encoding.c  :: Encoding
-transcode.c :: Encoding::Converter
-enc/*.c     :: エンコーディングクラス群
-enc/trans/* :: コードポイント対応表
-
-== gorubyコマンドの実装
-
-  goruby.c
-  golf_prelude.rb      : goruby固有のライブラリ
-    -> golf_prelude.c  : 自動生成
-
-= Appendix B. 拡張用関数リファレンス
-
-C言語からRubyの機能を利用するAPIは以下の通りである．
-
-== 型
-
-VALUE ::
-
-  Rubyオブジェクトを表現する型．必要に応じてキャストして用いる．
-  組み込み型を表現するCの型はruby.hに記述してあるRで始まる構造
-  体である．VALUE型をこれらにキャストするためにRで始まる構造体
-  名を全て大文字にした名前のマクロが用意されている．
-
-== 変数・定数
-
-Qnil ::
-
-  定数: nilオブジェクト
-
-Qtrue ::
-
-  定数: trueオブジェクト(真のデフォルト値)
-
-Qfalse ::
-
-  定数: falseオブジェクト
-
-== Cデータのカプセル化
-
-Data_Wrap_Struct(VALUE klass, void (*mark)(), void (*free)(), void *sval) ::
-
-  Cの任意のポインタをカプセル化したRubyオブジェクトを返す．こ
-  のポインタがRubyからアクセスされなくなった時，freeで指定した
-  関数が呼ばれる．また，このポインタの指すデータが他のRubyオブ
-  ジェクトを指している場合，markに指定する関数でマークする必要
-  がある．
-
-Data_Make_Struct(klass, type, mark, free, sval) ::
-
-  type型のメモリをmallocし，変数svalに代入した後，それをカプセ
-  ル化したデータを返すマクロ．
-
-Data_Get_Struct(data, type, sval) ::
-
-  dataからtype型のポインタを取り出し変数svalに代入するマクロ．
-
-== 型チェック
-
-  TYPE(value)
-  FIXNUM_P(value)
-  NIL_P(value)
-  void Check_Type(VALUE value, int type)
-  SafeStringValue(value)
-
-== 型変換
-
-  FIX2INT(value), INT2FIX(i)
-  FIX2LONG(value), LONG2FIX(l)
-  NUM2INT(value), INT2NUM(i)
-  NUM2UINT(value), UINT2NUM(ui)
-  NUM2LONG(value), LONG2NUM(l)
-  NUM2ULONG(value), ULONG2NUM(ul)
-  NUM2LL(value), LL2NUM(ll)
-  NUM2ULL(value), ULL2NUM(ull)
-  NUM2OFFT(value), OFFT2NUM(off)
-  NUM2SIZET(value), SIZET2NUM(size)
-  NUM2SSIZET(value), SSIZET2NUM(ssize)
-  NUM2DBL(value)
-  rb_float_new(f)
-  StringValue(value)
-  StringValuePtr(value)
-  StringValueCStr(value)
-  rb_str_new2(s)
-
-== クラス/モジュール定義
-
-VALUE rb_define_class(const char *name, VALUE super) ::
-
-  superのサブクラスとして新しいRubyクラスを定義する．
-
-VALUE rb_define_class_under(VALUE module, const char *name, VALUE super) ::
-
-  superのサブクラスとして新しいRubyクラスを定義し，moduleの
-  定数として定義する．
-
-VALUE rb_define_module(const char *name) ::
-
-  新しいRubyモジュールを定義する．
-
-VALUE rb_define_module_under(VALUE module, const char *name) ::
-
-  新しいRubyモジュールを定義し，moduleの定数として定義する．
-
-void rb_include_module(VALUE klass, VALUE module) ::
-
-  モジュールをインクルードする．classがすでにmoduleをインク
-  ルードしている時には何もしない(多重インクルードの禁止)．
-
-void rb_extend_object(VALUE object, VALUE module) ::
-
-  オブジェクトをモジュール(で定義されているメソッド)で拡張する．
-
-== 大域変数定義
-
-void rb_define_variable(const char *name, VALUE *var) ::
-
-  RubyとCとで共有するグローバル変数を定義する．変数名が`$'で
-  始まらない時には自動的に追加される．nameとしてRubyの識別子
-  として許されない文字(例えば` ')を含む場合にはRubyプログラ
-  ムからは見えなくなる．
-
-void rb_define_readonly_variable(const char *name, VALUE *var) ::
-
-  RubyとCとで共有するread onlyのグローバル変数を定義する．
-  read onlyであること以外はrb_define_variable()と同じ．
-
-void rb_define_virtual_variable(const char *name, VALUE (*getter)(), void (*setter)()) ::
-
-  関数によって実現されるRuby変数を定義する．変数が参照された
-  時にはgetterが，変数に値がセットされた時にはsetterが呼ばれ
-  る．
-
-void rb_define_hooked_variable(const char *name, VALUE *var, VALUE (*getter)(), void (*setter)()) ::
-
-  関数によってhookのつけられたグローバル変数を定義する．変数
-  が参照された時にはgetterが，関数に値がセットされた時には
-  setterが呼ばれる．getterやsetterに0を指定した時にはhookを
-  指定しないのと同じ事になる．
-
-void rb_global_variable(VALUE *var)
-
-  GCのため，Rubyプログラムからはアクセスされないが, Rubyオブ
-  ジェクトを含む大域変数をマークする．
-
-== 定数
-
-void rb_define_const(VALUE klass, const char *name, VALUE val) ::
-
-  定数を定義する．
-
-void rb_define_global_const(const char *name, VALUE val) ::
-
-  大域定数を定義する．
-
-    rb_define_const(rb_cObject, name, val)
-
-  と同じ意味．
-
-== メソッド定義
-
-rb_define_method(VALUE klass, const char *name, VALUE (*func)(), int argc) ::
-
-  メソッドを定義する．argcはselfを除く引数の数．argcが-1の時,
-  関数には引数の数(selfを含まない)を第1引数, 引数の配列を第2
-  引数とする形式で与えられる(第3引数はself)．argcが-2の時,
-  第1引数がself, 第2引数がargs(argsは引数を含むRubyの配列)と
-  いう形式で与えられる．
-
-rb_define_private_method(VALUE klass, const char *name, VALUE (*func)(), int argc) ::
-
-  privateメソッドを定義する．引数はrb_define_method()と同じ．
-
-rb_define_singleton_method(VALUE klass, const char *name, VALUE (*func)(), int argc) ::
-
-  特異メソッドを定義する．引数はrb_define_method()と同じ．
-
-rb_scan_args(int argc, VALUE *argv, const char *fmt, ...) ::
-
-  argc, argv形式で与えられた指定されたフォーマットに従って引
-  数を分解し，続くVALUEへの参照にセットします．このフォーマッ
-  トは，ABNFで記述すると以下の通りです．
-
-    scan-arg-spec  := param-arg-spec [option-hash-arg-spec] [block-arg-spec]
-
-    param-arg-spec := pre-arg-spec [post-arg-spec] / post-arg-spec /
-                      pre-opt-post-arg-spec
-    pre-arg-spec   := num-of-leading-mandatory-args [num-of-optional-args]
-    post-arg-spec  := sym-for-variable-length-args
-                      [num-of-trailing-mandatory-args]
-    pre-opt-post-arg-spec := num-of-leading-mandatory-args num-of-optional-args
-                             num-of-trailing-mandatory-args
-    option-hash-arg-spec := sym-for-option-hash-arg
-    block-arg-spec := sym-for-block-arg
-
-    num-of-leading-mandatory-args  := DIGIT ; 先頭に置かれる省略不能な引数の数
-    num-of-optional-args           := DIGIT ; 続いて置かれる省略可能な引数の数
-    sym-for-variable-length-args   := "*"   ; 続いて置かれる可変長引数を
-                                            ; Rubyの配列で取得するための指定
-    num-of-trailing-mandatory-args := DIGIT ; 終端に置かれる省略不能な引数の数
-    sym-for-option-hash-arg        := ":"   ; オプションハッシュを取得する
-                                            ; ための指定; 省略不能な引数の
-                                            ; 数よりも多くの引数が指定され，
-                                            ; 最後の引数がハッシュ（または
-                                            ; #to_hashで変換可能）の場合に
-                                            ; 取得される．最後の引数がnilの
-                                            ; 場合，可変長引数指定がなく，
-                                            ; 省略不能引数の数よりも多くの
-                                            ; 引数が指定された場合に取得される
-    sym-for-block-arg              := "&"   ; イテレータブロックを取得するための
-                                            ; 指定
-
-  フォーマットが"12"の場合，引数は最低1つで，3つ(1+2)まで許さ
-  れるという意味になります．従って，フォーマット文字列に続い
-  て3つのVALUEへの参照を置く必要があります．それらには取得した
-  変数がセットされます．変数への参照の代わりにNULLを指定する
-  こともでき，その場合は取得した引数の値は捨てられます．なお，
-  省略可能引数が省略された時の変数の値はnil(C言語のレベルでは
-  Qnil)になります．
-
-  返り値は与えられた引数の数です．オプションハッシュおよびイ
-  テレータブロックは数えません．
-
-== Rubyメソッド呼び出し
-
-VALUE rb_funcall(VALUE recv, ID mid, int narg, ...) ::
-
-  メソッド呼び出し．文字列からmidを得るためにはrb_intern()を
-  使う．
-
-VALUE rb_funcall2(VALUE recv, ID mid, int argc, VALUE *argv) ::
-
-  メソッド呼び出し．引数をargc, argv形式で渡す．
-
-VALUE rb_eval_string(const char *str)
-
-  文字列をRubyスクリプトとしてコンパイル・実行する．
-
-ID rb_intern(const char *name) ::
-
-  文字列に対応するIDを返す．
-
-char *rb_id2name(ID id) ::
-
-  IDに対応する文字列を返す(デバッグ用)．
-
-char *rb_class2name(VALUE klass) ::
-
-  クラスの名前を返す(デバッグ用)．クラスが名前を持たない時に
-  は, 祖先を遡って名前を持つクラスの名前を返す．
-
-int rb_respond_to(VALUE obj, ID id) ::
-
-  objがidで示されるメソッドを持つかどうかを返す．
-
-== インスタンス変数
-
-VALUE rb_iv_get(VALUE obj, const char *name) ::
-
-  objのインスタンス変数の値を得る．`@'で始まらないインスタン
-  ス変数は Rubyプログラムからアクセスできない「隠れた」イン
-  スタンス変数になる．定数は大文字の名前を持つクラス(または
-  モジュール)のインスタンス変数として実装されている．
-
-VALUE rb_iv_set(VALUE obj, const char *name, VALUE val) ::
-
-  objのインスタンス変数をvalにセットする．
-
-== 制御構造
-
-VALUE rb_block_call(VALUE obj, ID mid, int argc, VALUE * argv, VALUE (*func) (ANYARGS), VALUE data2) ::
-
-  funcをブロックとして設定し，objをレシーバ，argcとargvを引数
-  としてmidメソッドを呼び出す．funcは第一引数にyieldされた値，
-  第二引数にdata2を受け取る．複数の値がyieldされた場合(Cでは
-  rb_yield_values()とrb_yield_values2(), rb_yield_splat())，
-  data2はArrayとしてパックされている．第三, 第四引数のargcと
-  argvによってyieldされた値を取り出すことができる．
-
-[OBSOLETE] VALUE rb_iterate(VALUE (*func1)(), VALUE arg1, VALUE (*func2)(), VALUE arg2) ::
-
-  func2をブロックとして設定し, func1をイテレータとして呼ぶ．
-  func1には arg1が引数として渡され, func2には第1引数にイテレー
-  タから与えられた値, 第2引数にarg2が渡される．
-  
-  1.9でrb_iterateを使う場合は, func1の中でRubyレベルのメソッド
-  を呼び出さなければならない.
-  1.9でobsoleteとなった. 代わりにrb_block_callが用意された.
-
-VALUE rb_yield(VALUE val) ::
-
-  valを値としてイテレータブロックを呼び出す．
-
-VALUE rb_rescue(VALUE (*func1)(), VALUE arg1, VALUE (*func2)(), VALUE arg2) ::
-
-  関数func1をarg1を引数に呼び出す．func1の実行中に例外が発生
-  した時には func2をarg2を引数として呼ぶ．戻り値は例外が発生
-  しなかった時はfunc1の戻り値, 例外が発生した時にはfunc2の戻
-  り値である．
-
-VALUE rb_ensure(VALUE (*func1)(), VALUE arg1, VALUE (*func2)(), VALUE arg2) ::
-
-  関数func1をarg1を引数として実行し, 実行終了後(たとえ例外が
-  発生しても) func2をarg2を引数として実行する．戻り値はfunc1
-  の戻り値である(例外が発生した時は戻らない)．
-
-VALUE rb_protect(VALUE (*func) (VALUE), VALUE arg, int *state) ::
-
-  関数funcをargを引数として実行し, 例外が発生しなければその戻
-  り値を返す．例外が発生した場合は, *stateに非0をセットして
-  Qnilを返す．
-  rb_jump_tag()を呼ばずに捕捉した例外を無視する場合には，
-  rb_set_errinfo(Qnil)でエラー情報をクリアしなければならない．
-
-void rb_jump_tag(int state) ::
-
-  rb_protect()やrb_eval_string_protect()で捕捉された例外を再
-  送する．stateはそれらの関数から返された値でなければならない．
-  この関数は直接の呼び出し元に戻らない．
-
-void rb_iter_break() ::
-
-  現在の最も内側のブロックを終了する．この関数は直接の呼び出
-  し元に戻らない．
-
-void rb_iter_break_value(VALUE value) ::
-
-  現在の最も内側のブロックをvalueで終了する．ブロックは引数で
-  与えられたvalueを返す．この関数は直接の呼び出し元に戻らない．
-
-== 例外・エラー
-
-void rb_warning(const char *fmt, ...) ::
-
-  rb_verbose時に標準エラー出力に警告情報を表示する．引数は
-  printf()と同じ．
-
-void rb_raise(rb_eRuntimeError, const char *fmt, ...) ::
-
-  RuntimeError例外を発生させる．引数はprintf()と同じ．
-
-void rb_raise(VALUE exception, const char *fmt, ...) ::
-
-  exceptionで指定した例外を発生させる．fmt以下の引数は
-  printf()と同じ．
-
-void rb_fatal(const char *fmt, ...) ::
-
-  致命的例外を発生させる．通常の例外処理は行なわれず, インター
-  プリタが終了する(ただしensureで指定されたコードは終了前に
-  実行される)．
-
-void rb_bug(const char *fmt, ...) ::
-
-  インタープリタなどプログラムのバグでしか発生するはずのない
-  状況の時呼ぶ．インタープリタはコアダンプし直ちに終了する．
-  例外処理は一切行なわれない．
-
-注意: %iはObject#to_s('+'フラグが指定されているときはObject#inspect)を
-使ったVALUEの出力に使用されているため，整数には%dを使用すること．
-
-== Rubyの初期化・実行
-
-Rubyをアプリケーションに埋め込む場合には以下のインタフェース
-を使う．通常の拡張ライブラリには必要ない．
-
-void ruby_init() ::
-
-  Rubyインタプリタの初期化を行なう．
-
-void ruby_options(int argc, char **argv) ::
-
-  Rubyインタプリタのコマンドライン引数の処理を行なう．
-
-void ruby_run() ::
-
-  Rubyインタプリタを実行する．
-
-void ruby_script(char *name) ::
-
-  Rubyのスクリプト名($0)を設定する．
-
-== インタプリタのイベントのフック
-
-  void rb_add_event_hook(rb_event_hook_func_t func, rb_event_flag_t events,
-                         VALUE data)
-
-指定されたインタプリタのイベントに対するフック関数を追加します．
-eventsは以下の値のorでなければなりません:
-
-  RUBY_EVENT_LINE
-  RUBY_EVENT_CLASS
-  RUBY_EVENT_END
-  RUBY_EVENT_CALL
-  RUBY_EVENT_RETURN
-  RUBY_EVENT_C_CALL
-  RUBY_EVENT_C_RETURN
-  RUBY_EVENT_RAISE
-  RUBY_EVENT_ALL
-
-rb_event_hook_func_tの定義は以下の通りです:
-
-  typedef void (*rb_event_hook_func_t)(rb_event_t event, VALUE data,
-                                       VALUE self, ID id, VALUE klass)
-
-rb_add_event_hook() の第3引数 data は，フック関数の第2引数と
-して渡されます．これは1.8では現在のNODEへのポインタでした．以
-下の RB_EVENT_HOOKS_HAVE_CALLBACK_DATA も参照してください．
-
-  int rb_remove_event_hook(rb_event_hook_func_t func)
-
-指定されたフック関数を削除します．
-
-== 互換性のためのマクロ
-
-APIの互換性をチェックするために以下のマクロがデフォルトで定義されています．
-
-NORETURN_STYLE_NEW ::
-
-  NORETURN マクロが関数型マクロとして定義されていることを意味する．
-
-HAVE_RB_DEFINE_ALLOC_FUNC ::
-
-  rb_define_alloc_func() 関数が提供されていること，つまり
-  allocation framework が使われることを意味する．
-  have_func("rb_define_alloc_func", "ruby.h")
-  の結果と同じ．
-
-HAVE_RB_REG_NEW_STR ::
-
-  StringオブジェクトからRegexpオブジェクトを作る
-  rb_reg_new_str() 関数が提供されていることを意味する．
-  have_func("rb_reg_new_str", "ruby.h").
-  の結果と同じ．
-
-HAVE_RB_IO_T ::
-
-  rb_io_t 型が提供されていることを意味する．
-
-USE_SYMBOL_AS_METHOD_NAME ::
-
-  メソッド名を返すメソッド，Module#methods, #singleton_methods
-  などがSymbolを返すことを意味する．
-
-HAVE_RUBY_*_H ::
-
-  ruby.h で定義されている．対応するヘッダが提供されていること
-  を意味する．たとえば，HAVE_RUBY_ST_H が定義されている場合は
-  単なる st.h ではなく ruby/st.h を使用する．
-
-RB_EVENT_HOOKS_HAVE_CALLBACK_DATA ::
-
-  rb_add_event_hook() がフック関数に渡す data を第3引数として
-  受け取ることを意味する．
-
-= Appendix C. extconf.rbで使える関数たち
-
-extconf.rbの中では利用可能なコンパイル条件チェックの関数は以
-下の通りである．
-
-have_macro(macro, headers) ::
-
-  ヘッダファイルheaderをインクルードしてマクロmacroが定義さ
-  れているかどうかチェックする．マクロが定義されている時true
-  を返す．
-
-have_library(lib, func) ::
-
-  関数funcを定義しているライブラリlibの存在をチェックする．
-  ライブラリが存在する時，trueを返す．
-
-find_library(lib, func, path...) ::
-
-  関数funcを定義しているライブラリlibの存在を -Lpath を追加
-  しながらチェックする．ライブラリが見付かった時，trueを返す．
-
-have_func(func, header) ::
-
-  ヘッダファイルheaderをインクルードして関数funcの存在をチェ
-  ックする．funcが標準ではリンクされないライブラリ内のもので
-  ある時には先にhave_libraryでそのライブラリをチェックしてお
-  く事．関数が存在する時trueを返す．
-
-have_var(var, header) ::
-
-  ヘッダファイルheaderをインクルードして変数varの存在をチェッ
-  クする．varが標準ではリンクされないライブラリ内のものであ
-  る時には先にhave_libraryでそのライブラリをチェックしておく
-  事．変数が存在する時trueを返す．
-
-have_header(header) ::
-
-  ヘッダファイルの存在をチェックする．ヘッダファイルが存在す
-  る時trueを返す．
-
-find_header(header, path...) ::
-
-  ヘッダファイルheaderの存在を -Ipath を追加しながらチェック
-  する．ヘッダファイルが見付かった時，trueを返す．
-
-have_struct_member(type, member[, header[, opt]]) ::
-
-  ヘッダファイルheaderをインクルードして型typeにメンバmember
-  が存在するかをチェックする．typeが定義されていて，memberを
-  持つする時trueを返す．
-
-have_type(type, header, opt) ::
-
-  ヘッダファイルheaderをインクルードして型typeが存在するかを
-  チェックする．typeが定義されている時trueを返す．
-
-check_sizeof(type, header) ::
-
-  ヘッダファイルheaderをインクルードして型typeのchar単位サイ
-  ズを調べる．typeが定義されている時そのサイズを返す．定義さ
-  れていないときはnilを返す．
-
-create_makefile(target[, target_prefix]) ::
-
-  拡張ライブラリ用のMakefileを生成する．この関数を呼ばなけれ
-  ばそのライブラリはコンパイルされない．targetはモジュール名
-  を表す．
-
-find_executable(command, path) ::
-
-  コマンドcommandをFile::PATH_SEPARATORで区切られたパス名の
-  リストpathから探す．pathがnilまたは省略された場合は，環境
-  変数PATHの値を使用する．実行可能なコマンドが見つかった場合
-  はパスを含むファイル名，見つからなかった場合はnilを返す．
-
-with_config(withval[, default=nil]) ::
-
-  コマンドライン上の--with-<withval>で指定されたオプション値
-  を得る．
-
-enable_config(config, *defaults) ::
-disable_config(config, *defaults) ::
-
-  コマンドライン上の--enable-<config>または
-  --disable-<config>で指定された真偽値を得る．
-  --enable-<config>が指定されていた場合はtrue，
-  --disable-<config>が指定されていた場合はfalseを返す．
-  どちらも指定されていない場合は，ブロックつきで呼び出されて
-  いる場合は*defaultsをyieldした結果，ブロックなしなら
-  *defaultsを返す．
-
-dir_config(target[, default_dir]) ::
-dir_config(target[, default_include, default_lib]) ::
-
-  コマンドライン上の--with-<target>-dir, --with-<target>-include,
-  --with-<target>-libのいずれかで指定されるディレクトリを
-  $CFLAGS や $LDFLAGS に追加する．--with-<target>-dir=/pathは
-  --with-<target>-include=/path/include --with-<target>-lib=/path/lib
-  と等価である．追加された include ディレクトリと lib ディレ
-  クトリの配列を返す． ([include_dir, lib_dir])
-
-pkg_config(pkg) ::
-
-  pkg-configコマンドからパッケージpkgの情報を得る．
-  pkg-configの実際のコマンド名は，--with-pkg-configコマンド
-  ラインオプションで指定可能．
-
-/*
- * Local variables:
- * fill-column: 60
- * end:
- */
+doc/extension.ja.rdocに移動しました
diff --git a/README.ja b/README.ja
deleted file mode 100644
index 03c007af7c..0000000000
--- a/README.ja
+++ /dev/null
@@ -1,192 +0,0 @@
-= Rubyとは
-
-Rubyはシンプルかつ強力なオブジェクト指向スクリプト言語です．
-Rubyは最初から純粋なオブジェクト指向言語として設計されていま
-すから，オブジェクト指向プログラミングを手軽に行う事が出来ま
-す．もちろん通常の手続き型のプログラミングも可能です．
-
-Rubyはテキスト処理関係の能力などに優れ，Perlと同じくらい強力
-です．さらにシンプルな文法と，例外処理やイテレータなどの機構
-によって，より分かりやすいプログラミングが出来ます．
-
-
-== Rubyの特長
-
-*   シンプルな文法
-*   普通のオブジェクト指向機能(クラス，メソッドコールなど)
-*   特殊なオブジェクト指向機能(Mixin, 特異メソッドなど)
-*   演算子オーバーロード
-*   例外処理機能
-*   イテレータとクロージャ
-*   ガーベージコレクタ
-*   ダイナミックローディング (アーキテクチャによる)
-*   移植性が高い．多くのUnix-like/POSIX互換プラットフォーム上で
-    動くだけでなく，Windows， Mac OS X，BeOSなどの上でも動く
-    cf. http://bugs.ruby-lang.org/projects/ruby-trunk/wiki/SupportedPlatformsJa
-
-== 入手法
-
-=== FTPで
-
-以下の場所においてあります．
-
-ftp://ftp.ruby-lang.org/pub/ruby/
-
-=== Subversionで
-
-開発先端のソースコードは次のコマンドで取得できます．
-
-  $ svn co http://svn.ruby-lang.org/repos/ruby/trunk/ ruby
-
-他に開発中のブランチの一覧は次のコマンドで見られます．
-
-  $ svn ls http://svn.ruby-lang.org/repos/ruby/branches/
-
-=== Gitで
-
-SubversionのミラーをGitHubに公開しています．
-以下のコマンドでリポジトリを取得できます．
-
-  $ git clone git://github.com/ruby/ruby.git
-
-== ホームページ
-
-RubyのホームページのURLは
-
-http://www.ruby-lang.org/
-
-です．
-
-
-== メーリングリスト
-
-Rubyのメーリングリストがあります。参加希望の方は
-
-mailto:ruby-list-ctl@ruby-lang.org
-
-まで本文に
-
-   subscribe YourFirstName YourFamilyName
-
-と書いて送って下さい。
-
-Ruby開発者向けメーリングリストもあります。こちらではrubyのバ
-グ、将来の仕様拡張など実装上の問題について議論されています。
-参加希望の方は
-
-mailto:ruby-dev-ctl@ruby-lang.org
-
-までruby-listと同様の方法でメールしてください。
-
-Ruby拡張モジュールについて話し合うruby-extメーリングリストと
-数学関係の話題について話し合うruby-mathメーリングリストと
-英語で話し合うruby-talkメーリングリストもあります。参加方法
-はどれも同じです。
-
-
-== コンパイル・インストール
-
-以下の手順で行ってください．
-
-1.   もし +configure+ ファイルが見つからない、もしくは
-     +configure.in+ より古いようなら、 +autoconf+ を実行して
-     新しく +configure+ を生成する
-
-2.   +configure+ を実行して +Makefile+ などを生成する
-
-     環境によってはデフォルトのCコンパイラ用オプションが付き
-     ます． +configure+ オプションで <tt>optflags=..</tt> <tt>warnflags=..</tt> 等
-     で上書きできます．
-
-3.   (必要ならば)+defines.h+ を編集する
-
-     多分，必要無いと思います．
-
-4.   (必要ならば)+ext/Setup+ に静的にリンクする拡張モジュールを
-     指定する
-
-     +ext/Setup+ に記述したモジュールは静的にリンクされます．
-
-     ダイナミックローディングをサポートしていないアーキテク
-     チャでは +Setup+ の1行目の「<tt>option nodynamic</tt>」という行のコ
-     メントを外す必要があります．また，このアーキテクチャで
-     拡張モジュールを利用するためには，あらかじめ静的にリン
-     クしておく必要があります．
-
-5.   +make+ を実行してコンパイルする
-
-6.   <tt>make check</tt>でテストを行う．
-
-     「<tt>check succeeded</tt>」と表示されれば成功です．ただしテスト
-     に成功しても完璧だと保証されている訳ではありません．
-
-7.   <tt>make install</tt>
-
-     以下のディレクトリを作って，そこにファイルをインストー
-     ルします．
-
-     * <tt>${DESTDIR}${prefix}/bin</tt>
-     * <tt>${DESTDIR}${prefix}/include/ruby-${MAJOR}.${MINOR}.${TEENY}</tt>
-     * <tt>${DESTDIR}${prefix}/include/ruby-${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}</tt>
-     * <tt>${DESTDIR}${prefix}/lib</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby/${MAJOR}.${MINOR}.${TEENY}</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby/site_ruby</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby/site_ruby/${MAJOR}.${MINOR}.${TEENY}</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby/site_ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby/vendor_ruby</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby/vendor_ruby/${MAJOR}.${MINOR}.${TEENY}</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby/vendor_ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}</tt>
-     * <tt>${DESTDIR}${prefix}/lib/ruby/gems/${MAJOR}.${MINOR}.${TEENY}</tt>
-     * <tt>${DESTDIR}${prefix}/share/man/man1</tt>
-     * <tt>${DESTDIR}${prefix}/share/ri/${MAJOR}.${MINOR}.${TEENY}/system</tt>
-
-     RubyのAPIバージョンが'_x.y.z_'であれば，<tt>${MAJOR}</tt>は
-     '_x_'で，<tt>${MINOR}</tt>は'_y_'，<tt>${TEENY}</tt>は'_z_'です．
-
-     <b>注意</b>: APIバージョンの +teeny+ は，Rubyプログラムのバージョ
-     ンとは異なることがあります．
-
-     +root+ で作業する必要があるかもしれません．
-
-もし，コンパイル時にエラーが発生した場合にはエラーのログとマ
-シン，OSの種類を含むできるだけ詳しいレポートを作者に送ってく
-ださると他の方のためにもなります．
-
-
-== 移植
-
-UNIXであれば +configure+ がほとんどの差異を吸収してくれるはずで
-すが，思わぬ見落としがあった場合(あるに違いない)，作者にその
-ことをレポートすれば，解決できるかも知れません．
-
-アーキテクチャにもっとも依存するのはGC部です．RubyのGCは対象
-のアーキテクチャが<tt>setjmp()</tt>または<tt>getcontext()</tt>によって全てのレ
-ジスタを +jmp_buf+ や +ucontext_t+ に格納することと， +jmp_buf+ や
-+ucontext_t+ とスタックが32bitアラインメントされていることを仮定
-しています．特に前者が成立しない場合の対応は非常に困難でしょう．
-後者の解決は比較的簡単で， +gc.c+ でスタックをマークしている
-部分にアラインメントのバイト数だけずらしてマークするコードを
-追加するだけで済みます．<tt>defined(\_\_mc68000\_\_)</tt>で括られてい
-る部分を参考にしてください．
-
-レジスタウィンドウを持つCPUでは，レジスタウィンドウをスタッ
-クにフラッシュするアセンブラコードを追加する必要があるかも知
-れません．
-
-
-== 配布条件
-
-+COPYING.ja+ ファイルを参照してください。
-
-
-== 著者
-
-コメント，バグレポートその他は mailto:matz@ruby-lang.jp まで．
--------------------------------------------------------
-created at: Thu Aug  3 11:57:36 JST 1995
---
-Local variables:
-mode: rdoc
-end:
diff --git a/README.ja.md b/README.ja.md
new file mode 100644
index 0000000000..eee54a9171
--- /dev/null
+++ b/README.ja.md
@@ -0,0 +1,171 @@
+# Rubyとは
+
+Rubyはシンプルかつ強力なオブジェクト指向スクリプト言語です． Rubyは純粋なオブジェクト指向言語として設計されているので，
+オブジェクト指向プログラミングを手軽に行う事が出来ます．もちろん普通の手続き型のプログラミングも可能です．
+
+Rubyはテキスト処理関係の能力などに優れ，Perlと同じくらい強力です．さらにシンプルな文法と，
+例外処理やイテレータなどの機構によって，より分かりやすいプログラミングが出来ます．
+
+## Rubyの特長
+
+*   シンプルな文法
+*   普通のオブジェクト指向機能(クラス，メソッドコールなど)
+*   特殊なオブジェクト指向機能(Mixin, 特異メソッドなど)
+*   演算子オーバーロード
+*   例外処理機能
+*   イテレータとクロージャ
+*   ガーベージコレクタ
+*   ダイナミックローディング (アーキテクチャによる)
+*   移植性が高い．多くのUnix-like/POSIX互換プラットフォーム上で動くだけでなく，Windows， Mac OS
+    X，BeOSなどの上でも動く cf.
+    http://bugs.ruby-lang.org/projects/ruby-trunk/wiki/SupportedPlatformsJa
+
+
+## 入手法
+
+### FTPで
+
+以下の場所においてあります．
+
+ftp://ftp.ruby-lang.org/pub/ruby/
+
+### Subversionで
+
+開発先端のソースコードは次のコマンドで取得できます．
+
+    $ svn co http://svn.ruby-lang.org/repos/ruby/trunk/ ruby
+
+他に開発中のブランチの一覧は次のコマンドで見られます．
+
+    $ svn ls http://svn.ruby-lang.org/repos/ruby/branches/
+
+### Gitで
+
+SubversionのミラーをGitHubに公開しています． 以下のコマンドでリポジトリを取得できます．
+
+    $ git clone git://github.com/ruby/ruby.git
+
+## ホームページ
+
+RubyのホームページのURLは
+
+http://www.ruby-lang.org/
+
+です．
+
+## メーリングリスト
+
+Rubyのメーリングリストがあります．参加希望の方は
+
+mailto:ruby-list-request@ruby-lang.org
+
+まで本文に
+
+    subscribe
+
+と書いて送って下さい．
+
+Ruby開発者向けメーリングリストもあります．こちらではrubyのバグ，将来の仕様拡張など実装上の問題について議論されています． 参加希望の方は
+
+mailto:ruby-dev-request@ruby-lang.org
+
+までruby-listと同様の方法でメールしてください．
+
+Ruby拡張モジュールについて話し合うruby-extメーリングリストと数学関係の話題について話し合うruby-mathメーリングリストと
+英語でrubyについて話し合うruby-talkメーリングリストもあります．参加方法はどれも同じです．
+
+## コンパイル・インストール
+
+以下の手順で行ってください．
+
+1.  もし `configure` ファイルが見つからない，もしくは `configure.in` より古いようなら， `autoconf` を実行して
+    新しく `configure` を生成する
+
+2.  `configure` を実行して `Makefile` などを生成する
+
+    環境によってはデフォルトのCコンパイラ用オプションが付きます． `configure` オプションで `optflags=..`
+    `warnflags=..` 等で上書きできます．
+
+3.  (必要ならば)`defines.h` を編集する
+
+    多分，必要無いと思います．
+
+4.  (必要ならば)`ext/Setup` に静的にリンクする拡張モジュールを指定する
+
+    `ext/Setup` に記述したモジュールは静的にリンクされます．
+
+    ダイナミックローディングをサポートしていないアーキテクチャでは `Setup` の1行目の「`option nodynamic`」という行のコ
+    メントを外す必要があります．また，このアーキテクチャで拡張モジュールを利用するためには，あらかじめ静的にリンクをしておく必要があります．
+
+5.  `make` を実行してコンパイルする
+
+6.  `make check`でテストを行う．
+
+    「`check succeeded`」と表示されれば成功です．ただしテストに成功しても完璧だと保証されている訳ではありません．
+
+7.  `make install`
+
+    以下のディレクトリを作って，そこにファイルをインストー ルします．
+
+    *   `${DESTDIR}${prefix}/bin`
+    *   `${DESTDIR}${prefix}/include/ruby-${MAJOR}.${MINOR}.${TEENY}`
+    *   `${DESTDIR}${prefix}/include/ruby-${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}`
+    *   `${DESTDIR}${prefix}/lib`
+    *   `${DESTDIR}${prefix}/lib/ruby`
+    *   `${DESTDIR}${prefix}/lib/ruby/${MAJOR}.${MINOR}.${TEENY}`
+    *   `${DESTDIR}${prefix}/lib/ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}`
+    *   `${DESTDIR}${prefix}/lib/ruby/site_ruby`
+    *   `${DESTDIR}${prefix}/lib/ruby/site_ruby/${MAJOR}.${MINOR}.${TEENY}`
+    *   `${DESTDIR}${prefix}/lib/ruby/site_ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}`
+    *   `${DESTDIR}${prefix}/lib/ruby/vendor_ruby`
+    *   `${DESTDIR}${prefix}/lib/ruby/vendor_ruby/${MAJOR}.${MINOR}.${TEENY}`
+    *   `${DESTDIR}${prefix}/lib/ruby/vendor_ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}`
+    *   `${DESTDIR}${prefix}/lib/ruby/gems/${MAJOR}.${MINOR}.${TEENY}`
+    *   `${DESTDIR}${prefix}/share/man/man1`
+    *   `${DESTDIR}${prefix}/share/ri/${MAJOR}.${MINOR}.${TEENY}/system`
+
+
+    RubyのAPIバージョンが'*x.y.z*'であれば，`${MAJOR}`は
+    '*x*'で，`${MINOR}`は'*y*'，`${TEENY}`は'*z*'です．
+
+    **注意**: APIバージョンの `teeny` は，Rubyプログラムのバージョンとは異なることがあります．
+
+    `root` で作業する必要があるかもしれません．
+
+
+もし，コンパイル時にエラーが発生した場合にはエラーのログとマシン，OSの種類を含むできるだけ詳しいレポートを作者に送って下さると他の方のためにもなります．
+
+## 移植
+
+UNIXであれば `configure` がほとんどの差異を吸収してくれるはずですが，思わぬ見落としがあった場合(ある事が多い)，作者にその
+ことを報告すれば，解決できる可能性があります．
+
+アーキテクチャにもっとも依存するのはGC部です．RubyのGCは対象
+のアーキテクチャが`setjmp()`または`getcontext()`によって全てのレジスタを `jmp_buf` や `ucontext_t`
+に格納することと， `jmp_buf` や `ucontext_t` とスタックが32bitアラインメントされていることを仮定
+しています．特に前者が成立しない場合の対応は非常に困難でしょう． 後者の解決は比較的簡単で， `gc.c` でスタックをマークしている
+部分にアラインメントのバイト数だけずらしてマークするコードを追加するだけで済みます．`defined(__mc68000__)`で括られてい
+る部分を参考にしてください．
+
+レジスタウィンドウを持つCPUでは，レジスタウィンドウをスタックにフラッシュするアセンブラコードを追加する必要があるかもしれません．
+
+## 配布条件
+
+`COPYING.ja` ファイルを参照してください．
+
+## フィードバック
+
+Rubyに関する質問は Ruby-Talk（英語）や Ruby-List（日本語） (https://www.ruby-lang.org/ja/community/mailing-lists) や，
+stackoverflow (http://ja.stackoverflow.com/) などのWebサイトに投稿してください．
+
+バグ報告は http://bugs.ruby-lang.org で受け付けています．
+
+
+## 著者
+
+Rubyのオリジナル版は，1995年にまつもとゆきひろ氏によって設計・開発されました．
+
+<mailto:matz@ruby-lang.org>
+
+---
+created at: Thu Aug  3 11:57:36 JST 1995
diff --git a/README.md b/README.md
new file mode 100644
index 0000000000..14fb7aa213
--- /dev/null
+++ b/README.md
@@ -0,0 +1,164 @@
+# What's Ruby
+
+Ruby is the interpreted scripting language for quick and easy object-oriented
+programming.  It has many features to process text files and to do system
+management tasks (as in Perl).  It is simple, straight-forward, and
+extensible.
+
+## Features of Ruby
+
+*   Simple Syntax
+*   **Normal** Object-oriented Features (e.g. class, method calls)
+*   **Advanced** Object-oriented Features (e.g. Mix-in, Singleton-method)
+*   Operator Overloading
+*   Exception Handling
+*   Iterators and Closures
+*   Garbage Collection
+*   Dynamic Loading of Object Files (on some architectures)
+*   Highly Portable (works on many Unix-like/POSIX compatible platforms as
+    well as Windows, Mac OS X, BeOS, etc.) cf.
+    http://bugs.ruby-lang.org/projects/ruby-trunk/wiki/SupportedPlatforms
+
+
+## How to get Ruby
+
+For a complete list of ways to install Ruby, including using third-party tools
+like rvm, see:
+
+http://www.ruby-lang.org/en/downloads/
+
+The Ruby distribution files can be found on the following FTP site:
+
+ftp://ftp.ruby-lang.org/pub/ruby/
+
+The trunk of the Ruby source tree can be checked out with the following
+command:
+
+    $ svn co http://svn.ruby-lang.org/repos/ruby/trunk/ ruby
+
+Or if you are using git then use the following command:
+
+    $ git clone git://github.com/ruby/ruby.git
+
+There are some other branches under development.  Try the following command
+to see the list of branches:
+
+    $ svn ls http://svn.ruby-lang.org/repos/ruby/branches/
+
+Or if you are using git then use the following command:
+
+    $ git ls-remote git://github.com/ruby/ruby.git
+
+## Ruby home page
+
+The URL of the Ruby home page is:
+
+http://www.ruby-lang.org/
+
+## Mailing list
+
+There is a mailing list to talk about Ruby. To subscribe this list, please
+send the following phrase:
+
+    subscribe
+
+in the mail body (not subject) to the address
+<mailto:ruby-talk-request@ruby-lang.org>.
+
+## How to compile and install
+
+This is what you need to do to compile and install Ruby:
+
+1.  If you want to use Microsoft Visual C++ to compile ruby, read
+    win32/README.win32 instead of this document.
+
+2.  If `./configure` does not exist or is older than configure.in, run
+    `autoconf` to (re)generate configure.
+
+3.  Run `./configure`, which will generate `config.h` and `Makefile`.
+
+    Some C compiler flags may be added by default depending on your
+    environment.  Specify `optflags=..` and `warnflags=..` as necessary to
+    override them.
+
+4.  Edit `defines.h` if you need. Usually this step will not be needed.
+
+5.  Remove comment mark(`#`) before the module names from `ext/Setup` (or add
+    module names if not present), if you want to link modules statically.
+
+    If you don't want to compile non static extension modules (probably on
+    architectures which do not allow dynamic loading), remove comment mark
+    from the line "`#option nodynamic`" in `ext/Setup`.
+
+    Usually this step will not be needed.
+
+6.  Run `make`.
+
+7.  Optionally, run '`make check`' to check whether the compiled Ruby
+    interpreter works well. If you see the message "`check succeeded`", your
+    ruby works as it should (hopefully).
+
+8.  Run '`make install`'
+
+    This command will create following directories and install files onto
+    them.
+
+    *   `${DESTDIR}${prefix}/bin`
+    *   `${DESTDIR}${prefix}/include/ruby-${MAJOR}.${MINOR}.${TEENY}`
+    *   `${DESTDIR}${prefix}/include/ruby-${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}`
+    *   `${DESTDIR}${prefix}/lib`
+    *   `${DESTDIR}${prefix}/lib/ruby`
+    *   `${DESTDIR}${prefix}/lib/ruby/${MAJOR}.${MINOR}.${TEENY}`
+    *   `${DESTDIR}${prefix}/lib/ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}`
+    *   `${DESTDIR}${prefix}/lib/ruby/site_ruby`
+    *   `${DESTDIR}${prefix}/lib/ruby/site_ruby/${MAJOR}.${MINOR}.${TEENY}`
+    *   `${DESTDIR}${prefix}/lib/ruby/site_ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}`
+    *   `${DESTDIR}${prefix}/lib/ruby/vendor_ruby`
+    *   `${DESTDIR}${prefix}/lib/ruby/vendor_ruby/${MAJOR}.${MINOR}.${TEENY}`
+    *   `${DESTDIR}${prefix}/lib/ruby/vendor_ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}`
+    *   `${DESTDIR}${prefix}/lib/ruby/gems/${MAJOR}.${MINOR}.${TEENY}`
+    *   `${DESTDIR}${prefix}/share/man/man1`
+    *   `${DESTDIR}${prefix}/share/ri/${MAJOR}.${MINOR}.${TEENY}/system`
+
+
+    If Ruby's API version is '*x.y.z*', the `${MAJOR}` is '*x*', the
+    `${MINOR}` is '*y*', and the `${TEENY}` is '*z*'.
+
+    **NOTE**: teeny of the API version may be different from one of Ruby's
+    program version
+
+    You may have to be a super user to install ruby.
+
+
+If you fail to compile ruby, please send the detailed error report with the
+error log and machine/OS type, to help others.
+
+Some extension libraries may not get compiled because of lack of necessary
+external libraries and/or headers, then you will need to run '`make distclean-ext`'
+to remove old configuration after installing them in such case.
+
+## Copying
+
+See the file `COPYING`.
+
+## Feedback
+
+Questions about the Ruby language can be asked on the Ruby-Talk mailing list
+(http://www.ruby-lang.org/en/community/mailing-lists) or on websites like
+(http://stackoverflow.com).
+
+Bug reports should be filed at http://bugs.ruby-lang.org. Read [HowToReport] for more information.
+
+[HowToReport]: https://bugs.ruby-lang.org/projects/ruby/wiki/HowToReport
+
+##Contributing
+
+See the file `CONTRIBUTING.md`
+
+
+## The Author
+
+Ruby was originally designed and developed by Yukihiro Matsumoto (Matz) in
+1995.
+
+<mailto:matz@ruby-lang.org>
diff --git a/aclocal.m4 b/aclocal.m4
new file mode 100644
index 0000000000..30fccd52fe
--- /dev/null
+++ b/aclocal.m4
@@ -0,0 +1,46 @@
+# -*- autoconf -*-
+
+AC_DEFUN([_COLORIZE_RESULT_PREPARE], [
+    msg_checking= msg_result_yes= msg_result_no= msg_result_other= msg_reset=
+    AS_IF([test "x${CONFIGURE_TTY}" = xyes -o -t 1], [
+	msg_begin="`tput smso 2>/dev/null`"
+    	AS_CASE(["$msg_begin"], ['@<:@'*m],
+	    [msg_begin="`echo "$msg_begin" | sed ['s/[0-9]*m$//']`"
+	    msg_checking="${msg_begin}33m"
+	    AS_IF([test ${TEST_COLORS:+set}], [
+		msg_result_yes=[`expr ":$TEST_COLORS:" : ".*:pass=\([^:]*\):"`]
+		msg_result_no=[`expr ":$TEST_COLORS:" : ".*:fail=\([^:]*\):"`]
+		msg_result_other=[`expr ":$TEST_COLORS:" : ".*:skip=\([^:]*\):"`]
+	    ])
+	    msg_result_yes="${msg_begin}${msg_result_yes:-32;1}m"
+	    msg_result_no="${msg_begin}${msg_result_no:-31;1}m"
+	    msg_result_other="${msg_begin}${msg_result_other:-33;1}m"
+	    msg_reset="${msg_begin}m"
+	    ])
+	AS_UNSET(msg_begin)
+	])
+    AS_REQUIRE_SHELL_FN([colorize_result],
+	[AS_FUNCTION_DESCRIBE([colorize_result], [MSG], [Colorize result])],
+        [AS_CASE(["$[]1"],
+            [yes], [AS_ECHO(["${msg_result_yes}$[]1${msg_reset}]")],
+            [no], [AS_ECHO(["${msg_result_no}$[]1${msg_reset}]")],
+            [AS_ECHO(["${msg_result_other}$[]1${msg_reset}]")])])
+])
+
+AC_DEFUN([COLORIZE_RESULT], [AC_REQUIRE([_COLORIZE_RESULT_PREPARE])dnl
+    AS_LITERAL_IF([$1],
+	[m4_case([$1],
+		[yes], [AS_ECHO(["${msg_result_yes}$1${msg_reset}"])],
+		[no], [AS_ECHO(["${msg_result_no}$1${msg_reset}"])],
+		[AS_ECHO(["${msg_result_other}$1${msg_reset}"])])],
+	[colorize_result "$1"]) dnl
+])
+
+AC_DEFUN([AC_CHECKING],[dnl
+AC_REQUIRE([_COLORIZE_RESULT_PREPARE])dnl
+AS_MESSAGE([checking ${msg_checking}$1${msg_reset}...])])
+
+AC_DEFUN([AC_MSG_RESULT], [dnl
+{ _AS_ECHO_LOG([result: $1])
+COLORIZE_RESULT([$1]); dnl
+}])
diff --git a/addr2line.c b/addr2line.c
index 72e2c15617..c8faf48d62 100644
--- a/addr2line.c
+++ b/addr2line.c
@@ -9,6 +9,7 @@
 **********************************************************************/
 
 #include "ruby/config.h"
+#include "ruby/missing.h"
 #include "addr2line.h"
 
 #include <stdio.h>
@@ -16,11 +17,6 @@
 
 #ifdef USE_ELF
 
-#ifdef __OpenBSD__
-#include <elf_abi.h>
-#else
-#include <elf.h>
-#endif
 #include <fcntl.h>
 #include <limits.h>
 #include <stdio.h>
@@ -32,6 +28,12 @@
 #include <sys/stat.h>
 #include <unistd.h>
 
+#ifdef __OpenBSD__
+#include <elf_abi.h>
+#else
+#include <elf.h>
+#endif
+
 /* Make alloca work the best possible way.  */
 #ifdef __GNUC__
 # ifndef atarist
@@ -53,11 +55,8 @@ void *alloca();
 # endif	/* HAVE_ALLOCA_H */
 #endif /* __GNUC__ */
 
-#ifdef HAVE_DL_ITERATE_PHDR
-# ifndef _GNU_SOURCE
-#  define _GNU_SOURCE
-# endif
-# include <link.h>
+#ifdef HAVE_DLADDR
+# include <dlfcn.h>
 #endif
 
 #define DW_LNS_copy                     0x01
@@ -86,6 +85,13 @@ void *alloca();
 #  define ElfW(x) Elf32##_##x
 # endif
 #endif
+#ifndef ELF_ST_TYPE
+# if SIZEOF_VOIDP == 8
+#  define ELF_ST_TYPE ELF64_ST_TYPE
+# else
+#  define ELF_ST_TYPE ELF32_ST_TYPE
+# endif
+#endif
 #ifndef PATH_MAX
 #define PATH_MAX 4096
 #endif
@@ -95,13 +101,22 @@ int kprintf(const char *fmt, ...);
 typedef struct {
     const char *dirname;
     const char *filename;
+    const char *path; /* object path */
     int line;
 
+    uintptr_t base_addr;
+    uintptr_t saddr;
+    const char *sname; /* function name */
+} line_info_t;
+typedef struct obj_info obj_info_t;
+struct obj_info {
+    const char *path; /* object path */
     int fd;
     void *mapped;
     size_t mapped_size;
-    unsigned long base_addr;
-} line_info_t;
+    uintptr_t base_addr;
+    obj_info_t *next;
+};
 
 /* Avoid consuming stack as this module may be used from signal handler */
 static char binary_filename[PATH_MAX];
@@ -194,34 +209,15 @@ fill_filename(int file, char *include_directories, char *filenames,
     }
 }
 
-static int
-get_path_from_symbol(const char *symbol, const char **p, size_t *len)
-{
-    if (symbol[0] == '0') {
-	/* libexecinfo */
-	*p   = strchr(symbol, '/');
-	if (*p == NULL) return 0;
-	*len = strlen(*p);
-    }
-    else {
-	/* glibc */
-	const char *q;
-	*p   = symbol;
-	q   = strchr(symbol, '(');
-	if (q == NULL) return 0;
-	*len = q - symbol;
-    }
-    return 1;
-}
-
 static void
-fill_line(int num_traces, void **traces,
-	  unsigned long addr, int file, int line,
-	  char *include_directories, char *filenames, line_info_t *lines)
+fill_line(int num_traces, void **traces, uintptr_t addr, int file, int line,
+	  char *include_directories, char *filenames,
+	  obj_info_t *obj, line_info_t *lines, int offset)
 {
     int i;
-    for (i = 0; i < num_traces; i++) {
-	unsigned long a = (unsigned long)traces[i] - lines[i].base_addr;
+    addr += obj->base_addr;
+    for (i = offset; i < num_traces; i++) {
+	uintptr_t a = (uintptr_t)traces[i];
 	/* We assume one line code doesn't result >100 bytes of native code.
        We may want more reliable way eventually... */
 	if (addr < a && a < addr + 100) {
@@ -232,8 +228,8 @@ fill_line(int num_traces, void **traces,
 }
 
 static void
-parse_debug_line_cu(int num_traces, void **traces,
-		    char **debug_line, line_info_t *lines)
+parse_debug_line_cu(int num_traces, void **traces, char **debug_line,
+		obj_info_t *obj, line_info_t *lines, int offset)
 {
     char *p, *cu_end, *cu_start, *include_directories, *filenames;
     unsigned long unit_length;
@@ -279,7 +275,7 @@ parse_debug_line_cu(int num_traces, void **traces,
     is_stmt = default_is_stmt = *(unsigned char *)p;
     p++;
 
-    line_base = *(char *)p;
+    line_base = *(signed char *)p;
     p++;
 
     line_range = *(unsigned char *)p;
@@ -307,7 +303,8 @@ parse_debug_line_cu(int num_traces, void **traces,
 #define FILL_LINE()						    \
     do {							    \
 	fill_line(num_traces, traces, addr, file, line,		    \
-		  include_directories, filenames, lines);	    \
+		  include_directories, filenames,		    \
+		  obj, lines, offset);				    \
 	/*basic_block = prologue_end = epilogue_begin = 0;*/	    \
     } while (0)
 
@@ -406,11 +403,12 @@ parse_debug_line_cu(int num_traces, void **traces,
 
 static void
 parse_debug_line(int num_traces, void **traces,
-		 char *debug_line, unsigned long size, line_info_t *lines)
+		 char *debug_line, unsigned long size,
+		 obj_info_t *obj, line_info_t *lines, int offset)
 {
     char *debug_line_end = debug_line + size;
     while (debug_line < debug_line_end) {
-	parse_debug_line_cu(num_traces, traces, &debug_line, lines);
+	parse_debug_line_cu(num_traces, traces, &debug_line, obj, lines, offset);
     }
     if (debug_line != debug_line_end) {
 	kprintf("Unexpected size of .debug_line in %s\n",
@@ -419,19 +417,27 @@ parse_debug_line(int num_traces, void **traces,
 }
 
 /* read file and fill lines */
+static uintptr_t
+fill_lines(int num_traces, void **traces, int check_debuglink,
+	   obj_info_t **objp, line_info_t *lines, int offset);
+
 static void
-fill_lines(int num_traces, void **traces, char **syms, int check_debuglink,
-	   line_info_t *current_line, line_info_t *lines);
+append_obj(obj_info_t **objp) {
+    obj_info_t *newobj = calloc(1, sizeof(obj_info_t));
+    if (*objp) (*objp)->next = newobj;
+    *objp = newobj;
+}
 
 static void
-follow_debuglink(char *debuglink, int num_traces, void **traces, char **syms,
-		 line_info_t *current_line, line_info_t *lines)
+follow_debuglink(char *debuglink, int num_traces, void **traces,
+		 obj_info_t **objp, line_info_t *lines, int offset)
 {
     /* Ideally we should check 4 paths to follow gnu_debuglink,
        but we handle only one case for now as this format is used
        by some linux distributions. See GDB's info for detail. */
     static const char global_debug_dir[] = "/usr/lib/debug";
     char *p, *subdir;
+    obj_info_t *o1 = *objp, *o2;
 
     p = strrchr(binary_filename, '/');
     if (!p) {
@@ -442,22 +448,22 @@ follow_debuglink(char *debuglink, int num_traces, void **traces, char **syms,
     subdir = (char *)alloca(strlen(binary_filename) + 1);
     strcpy(subdir, binary_filename);
     strcpy(binary_filename, global_debug_dir);
-    strncat(binary_filename, subdir,
-	    PATH_MAX - strlen(binary_filename) - 1);
-    strncat(binary_filename, debuglink,
-	    PATH_MAX - strlen(binary_filename) - 1);
-
-    munmap(current_line->mapped, current_line->mapped_size);
-    close(current_line->fd);
-    fill_lines(num_traces, traces, syms, 0, current_line, lines);
+    strlcat(binary_filename, subdir, PATH_MAX);
+    strlcat(binary_filename, debuglink, PATH_MAX);
+
+    append_obj(objp);
+    o2 = *objp;
+    o2->base_addr = o1->base_addr;
+    o2->path = o1->path;
+    fill_lines(num_traces, traces, 0, objp, lines, offset);
 }
 
 /* read file and fill lines */
-static void
-fill_lines(int num_traces, void **traces, char **syms, int check_debuglink,
-	   line_info_t *current_line, line_info_t *lines)
+static uintptr_t
+fill_lines(int num_traces, void **traces, int check_debuglink,
+	   obj_info_t **objp, line_info_t *lines, int offset)
 {
-    int i;
+    int i, j;
     char *shstr;
     char *section_name;
     ElfW(Ehdr) *ehdr;
@@ -466,23 +472,27 @@ fill_lines(int num_traces, void **traces, char **syms, int check_debuglink,
     int fd;
     off_t filesize;
     char *file;
+    ElfW(Shdr) *symtab_shdr = NULL, *strtab_shdr = NULL;
+    ElfW(Shdr) *dynsym_shdr = NULL, *dynstr_shdr = NULL;
+    obj_info_t *obj = *objp;
+    uintptr_t dladdr_fbase = 0;
 
     fd = open(binary_filename, O_RDONLY);
     if (fd < 0) {
-	return;
+	goto fail;
     }
     filesize = lseek(fd, 0, SEEK_END);
     if (filesize < 0) {
 	int e = errno;
 	close(fd);
 	kprintf("lseek: %s\n", strerror(e));
-	return;
+	goto fail;
     }
 #if SIZEOF_OFF_T > SIZEOF_SIZE_T
     if (filesize > (off_t)SIZE_MAX) {
 	close(fd);
 	kprintf("Too large file %s\n", binary_filename);
-	return;
+	goto fail;
     }
 #endif
     lseek(fd, 0, SEEK_SET);
@@ -492,7 +502,7 @@ fill_lines(int num_traces, void **traces, char **syms, int check_debuglink,
 	int e = errno;
 	close(fd);
 	kprintf("mmap: %s\n", strerror(e));
-	return;
+	goto fail;
     }
 
     ehdr = (ElfW(Ehdr) *)file;
@@ -502,21 +512,12 @@ fill_lines(int num_traces, void **traces, char **syms, int check_debuglink,
 	 * it match non-elf file.
 	 */
 	close(fd);
-	return;
+	goto fail;
     }
 
-    current_line->fd = fd;
-    current_line->mapped = file;
-    current_line->mapped_size = (size_t)filesize;
-
-    for (i = 0; i < num_traces; i++) {
-	const char *path;
-	size_t len;
-	if (get_path_from_symbol(syms[i], &path, &len) &&
-		!strncmp(path, binary_filename, len)) {
-	    lines[i].line = -1;
-	}
-    }
+    obj->fd = fd;
+    obj->mapped = file;
+    obj->mapped_size = (size_t)filesize;
 
     shdr = (ElfW(Shdr) *)(file + ehdr->e_shoff);
 
@@ -525,11 +526,88 @@ fill_lines(int num_traces, void **traces, char **syms, int check_debuglink,
 
     for (i = 0; i < ehdr->e_shnum; i++) {
 	section_name = shstr + shdr[i].sh_name;
-	if (!strcmp(section_name, ".debug_line")) {
-	    debug_line_shdr = shdr + i;
+	switch (shdr[i].sh_type) {
+	  case SHT_STRTAB:
+	    if (!strcmp(section_name, ".strtab")) {
+		strtab_shdr = shdr + i;
+	    }
+	    else if (!strcmp(section_name, ".dynstr")) {
+		dynstr_shdr = shdr + i;
+	    }
+	    break;
+	  case SHT_SYMTAB:
+	    /* if (!strcmp(section_name, ".symtab")) */
+	    symtab_shdr = shdr + i;
+	    break;
+	  case SHT_DYNSYM:
+	    /* if (!strcmp(section_name, ".dynsym")) */
+	    dynsym_shdr = shdr + i;
 	    break;
-	} else if (!strcmp(section_name, ".gnu_debuglink")) {
-	    gnu_debuglink_shdr = shdr + i;
+	  case SHT_PROGBITS:
+	    if (!strcmp(section_name, ".debug_line")) {
+		debug_line_shdr = shdr + i;
+	    }
+	    else if (!strcmp(section_name, ".gnu_debuglink")) {
+		gnu_debuglink_shdr = shdr + i;
+	    }
+	    break;
+	}
+    }
+
+    if (offset == -1) {
+	/* main executable */
+	offset = 0;
+	if (dynsym_shdr && dynstr_shdr) {
+	    char *strtab = file + dynstr_shdr->sh_offset;
+	    ElfW(Sym) *symtab = (ElfW(Sym) *)(file + dynsym_shdr->sh_offset);
+	    int symtab_count = (int)(dynsym_shdr->sh_size / sizeof(ElfW(Sym)));
+	    for (j = 0; j < symtab_count; j++) {
+		ElfW(Sym) *sym = &symtab[j];
+		Dl_info info;
+		void *h, *s;
+		if (ELF_ST_TYPE(sym->st_info) != STT_FUNC || sym->st_size <= 0) continue;
+		h = dlopen(NULL, RTLD_NOW|RTLD_LOCAL);
+		if (!h) continue;
+		s = dlsym(h, strtab + sym->st_name);
+		if (!s) continue;
+		if (dladdr(s, &info)) {
+		    dladdr_fbase = (uintptr_t)info.dli_fbase;
+		    break;
+		}
+	    }
+	    if (ehdr->e_type == ET_EXEC) {
+		obj->base_addr = 0;
+	    }
+	    else {
+		/* PIE (position-independent executable) */
+		obj->base_addr = dladdr_fbase;
+	    }
+	}
+    }
+
+    if (!symtab_shdr) {
+	symtab_shdr = dynsym_shdr;
+	strtab_shdr = dynstr_shdr;
+    }
+
+    if (symtab_shdr && strtab_shdr) {
+	char *strtab = file + strtab_shdr->sh_offset;
+	ElfW(Sym) *symtab = (ElfW(Sym) *)(file + symtab_shdr->sh_offset);
+	int symtab_count = (int)(symtab_shdr->sh_size / sizeof(ElfW(Sym)));
+	for (j = 0; j < symtab_count; j++) {
+	    ElfW(Sym) *sym = &symtab[j];
+	    uintptr_t saddr = (uintptr_t)sym->st_value + obj->base_addr;
+	    if (ELF_ST_TYPE(sym->st_info) != STT_FUNC || sym->st_size <= 0) continue;
+	    for (i = offset; i < num_traces; i++) {
+		uintptr_t d = (uintptr_t)traces[i] - saddr;
+		if (lines[i].line > 0 || d <= 0 || d > (uintptr_t)sym->st_size)
+		    continue;
+		/* fill symbol name and addr from .symtab */
+		lines[i].sname = strtab + sym->st_name;
+		lines[i].saddr = saddr;
+		lines[i].path  = obj->path;
+		lines[i].base_addr = obj->base_addr;
+	    }
 	}
     }
 
@@ -538,111 +616,161 @@ fill_lines(int num_traces, void **traces, char **syms, int check_debuglink,
 	   let's check .gnu_debuglink section instead. */
 	if (gnu_debuglink_shdr && check_debuglink) {
 	    follow_debuglink(file + gnu_debuglink_shdr->sh_offset,
-			     num_traces, traces, syms,
-			     current_line, lines);
+			     num_traces, traces,
+			     objp, lines, offset);
 	}
-	return;
+	goto finish;
     }
 
     parse_debug_line(num_traces, traces,
 		     file + debug_line_shdr->sh_offset,
 		     debug_line_shdr->sh_size,
-		     lines);
+		     obj, lines, offset);
+finish:
+    return dladdr_fbase;
+fail:
+    return (uintptr_t)-1;
 }
 
-#ifdef HAVE_DL_ITERATE_PHDR
-
-typedef struct {
-    int num_traces;
-    char **syms;
-    line_info_t *lines;
-} fill_base_addr_state_t;
-
-static int
-fill_base_addr(struct dl_phdr_info *info, size_t size, void *data)
+#define HAVE_MAIN_EXE_PATH
+#if defined(__FreeBSD__)
+# include <sys/sysctl.h>
+#endif
+/* ssize_t main_exe_path(void)
+ *
+ * store the path of the main executable to `binary_filename`,
+ * and returns strlen(binary_filename).
+ * it is NUL terminated.
+ */
+#if defined(__linux__)
+ssize_t
+main_exe_path(void)
 {
-    int i;
-    fill_base_addr_state_t *st = (fill_base_addr_state_t *)data;
-    for (i = 0; i < st->num_traces; i++) {
-	const char *path;
-	size_t len;
-	size_t name_len = strlen(info->dlpi_name);
-
-	if (get_path_from_symbol(st->syms[i], &path, &len) &&
-		(len == name_len || (len > name_len && path[len-name_len-1] == '/')) &&
-		!strncmp(path+len-name_len, info->dlpi_name, name_len)) {
-	    st->lines[i].base_addr = info->dlpi_addr;
-	}
+# define PROC_SELF_EXE "/proc/self/exe"
+    ssize_t len = readlink(PROC_SELF_EXE, binary_filename, PATH_MAX);
+    binary_filename[len] = 0;
+    return len;
+}
+#elif defined(__FreeBSD__)
+ssize_t
+main_exe_path(void)
+{
+    int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
+    size_t len = PATH_MAX;
+    int err = sysctl(mib, 4, binary_filename, &len, NULL, 0);
+    if (err) {
+	kprintf("Can't get the path of ruby");
+	return -1;
     }
-    return 0;
+    len--; /* sysctl sets strlen+1 */
+    return len;
 }
-
-#endif /* HAVE_DL_ITERATE_PHDR */
+#else
+#undef HAVE_MAIN_EXE_PATH
+#endif
 
 void
-rb_dump_backtrace_with_lines(int num_traces, void **trace, char **syms)
+rb_dump_backtrace_with_lines(int num_traces, void **traces)
 {
     int i;
     /* async-signal unsafe */
-    line_info_t *lines = (line_info_t *)calloc(num_traces,
-					       sizeof(line_info_t));
-
-    /* Note that line info of shared objects might not be shown
-       if we don't have dl_iterate_phdr */
-#ifdef HAVE_DL_ITERATE_PHDR
-    fill_base_addr_state_t fill_base_addr_state;
-
-    fill_base_addr_state.num_traces = num_traces;
-    fill_base_addr_state.syms = syms;
-    fill_base_addr_state.lines = lines;
-    /* maybe async-signal unsafe */
-    dl_iterate_phdr(fill_base_addr, &fill_base_addr_state);
-#endif /* HAVE_DL_ITERATE_PHDR */
-
-    for (i = 0; i < num_traces; i++) {
-	const char *path;
-	size_t len;
-	if (lines[i].line) {
-	    continue;
-	}
-
-	if (!get_path_from_symbol(syms[i], &path, &len)) {
-	    continue;
+    line_info_t *lines = (line_info_t *)calloc(num_traces, sizeof(line_info_t));
+    obj_info_t *obj = NULL;
+    /* 2 is NULL + main executable */
+    void **dladdr_fbases = (void **)calloc(num_traces+2, sizeof(void *));
+#ifdef HAVE_MAIN_EXE_PATH
+    char *main_path = NULL; /* used on printing backtrace */
+    ssize_t len;
+    if ((len = main_exe_path()) > 0) {
+	main_path = (char *)alloca(len + 1);
+	if (main_path) {
+	    uintptr_t addr;
+	    memcpy(main_path, binary_filename, len+1);
+	    append_obj(&obj);
+	    obj->path = main_path;
+	    addr = fill_lines(num_traces, traces, 1, &obj, lines, -1);
+	    if (addr != (uintptr_t)-1) {
+		dladdr_fbases[0] = (void *)addr;
+	    }
 	}
-
-	strncpy(binary_filename, path, len);
-	binary_filename[len] = '\0';
-
-	fill_lines(num_traces, trace, syms, 1, &lines[i], lines);
     }
+#endif
 
+    /* fill source lines by reading dwarf */
     for (i = 0; i < num_traces; i++) {
-	line_info_t *line = &lines[i];
-
-	if (line->line > 0) {
-	    if (line->filename) {
-		if (line->dirname && line->dirname[0]) {
-		    kprintf("%s %s/%s:%d\n", syms[i], line->dirname, line->filename, line->line);
-		}
-		else {
-		    kprintf("%s %s:%d\n", syms[i], line->filename, line->line);
+	Dl_info info;
+	if (lines[i].line) continue;
+	if (dladdr(traces[i], &info)) {
+	    const char *path;
+	    void **p;
+
+	    /* skip symbols which is in already checked objects */
+	    /* if the binary is strip-ed, this may effect */
+	    for (p=dladdr_fbases; *p; p++) {
+		if (*p == info.dli_fbase) {
+		    lines[i].path = info.dli_fname;
+		    lines[i].sname = info.dli_sname;
+		    goto next_line;
 		}
-	    } else {
-		kprintf("%s ???:%d\n", syms[i], line->line);
 	    }
-	} else {
-	    kprintf("%s\n", syms[i]);
+	    *p = info.dli_fbase;
+
+	    append_obj(&obj);
+	    obj->base_addr = (uintptr_t)info.dli_fbase;
+	    path = info.dli_fname;
+	    obj->path = path;
+	    lines[i].path = path;
+	    strcpy(binary_filename, path);
+	    fill_lines(num_traces, traces, 1, &obj, lines, i);
 	}
+next_line:
+	continue;
     }
 
+    /* output */
     for (i = 0; i < num_traces; i++) {
 	line_info_t *line = &lines[i];
-	if (line->fd) {
-	    munmap(line->mapped, line->mapped_size);
-	    close(line->fd);
+	uintptr_t addr = (uintptr_t)traces[i];
+	uintptr_t d = addr - line->saddr;
+	if (!line->path) {
+	    kprintf("[0x%lx]\n", addr);
+	}
+	else if (!line->saddr || !line->sname) {
+	    kprintf("%s [0x%lx]\n", line->path, addr);
+	}
+	else if (line->line <= 0) {
+	    kprintf("%s(%s+0x%lx) [0x%lx]\n", line->path, line->sname,
+		    d, addr);
+	}
+	else if (!line->filename) {
+	    kprintf("%s(%s+0x%lx) [0x%lx] ???:%d\n", line->path, line->sname,
+		    d, addr, line->line);
+	}
+	else if (line->dirname && line->dirname[0]) {
+	    kprintf("%s(%s+0x%lx) [0x%lx] %s/%s:%d\n", line->path, line->sname,
+		    d, addr, line->dirname, line->filename, line->line);
+	}
+	else {
+	    kprintf("%s(%s+0x%lx) [0x%lx] %s:%d\n", line->path, line->sname,
+		    d, addr, line->filename, line->line);
+	}
+	/* FreeBSD's backtrace may show _start and so on */
+	if (line->sname && strcmp("main", line->sname) == 0)
+	    break;
+    }
+
+    /* free */
+    while (obj) {
+	obj_info_t *o = obj;
+	obj = o->next;
+	if (o->fd) {
+	    munmap(o->mapped, o->mapped_size);
+	    close(o->fd);
 	}
+	free(o);
     }
     free(lines);
+    free(dladdr_fbases);
 }
 
 /* From FreeBSD's lib/libstand/printf.c */
@@ -731,7 +859,7 @@ ksprintn(char *nbuf, uintmax_t num, int base, int *lenp, int upper)
 		*++p = upper ? toupper(c) : c;
 	} while (num /= base);
 	if (lenp)
-		*lenp = p - nbuf;
+		*lenp = (int)(p - nbuf);
 	return (p);
 }
 
@@ -946,7 +1074,7 @@ reswitch:	switch (ch = (unsigned char)*fmt++) {
 			if (p == NULL)
 				p = "(null)";
 			if (!dot)
-				n = strlen (p);
+				n = (int)strlen (p);
 			else
 				for (n = 0; n < dwidth && p[n]; n++)
 					continue;
diff --git a/addr2line.h b/addr2line.h
index 3782d89e07..d99f010934 100644
--- a/addr2line.h
+++ b/addr2line.h
@@ -14,7 +14,7 @@
 #ifdef USE_ELF
 
 void
-rb_dump_backtrace_with_lines(int num_traces, void **traces, char **syms);
+rb_dump_backtrace_with_lines(int num_traces, void **traces);
 
 #endif /* USE_ELF */
 
diff --git a/array.c b/array.c
index 6d4256a947..de81ee7fab 100644
--- a/array.c
+++ b/array.c
@@ -11,11 +11,9 @@
 
 **********************************************************************/
 
-#include "ruby/ruby.h"
+#include "internal.h"
 #include "ruby/util.h"
 #include "ruby/st.h"
-#include "ruby/encoding.h"
-#include "internal.h"
 #include "probes.h"
 #include "id.h"
 
@@ -24,8 +22,6 @@
 #endif
 #include <assert.h>
 
-#define numberof(array) (int)(sizeof(array) / sizeof((array)[0]))
-
 VALUE rb_cArray;
 
 static ID id_cmp, id_div, id_power;
@@ -33,22 +29,6 @@ static ID id_cmp, id_div, id_power;
 #define ARY_DEFAULT_SIZE 16
 #define ARY_MAX_SIZE (LONG_MAX / (int)sizeof(VALUE))
 
-void
-rb_mem_clear(register VALUE *mem, register long size)
-{
-    while (size--) {
-	*mem++ = Qnil;
-    }
-}
-
-static inline void
-memfill(register VALUE *mem, register long size, register VALUE val)
-{
-    while (size--) {
-	*mem++ = val;
-    }
-}
-
 # define ARY_SHARED_P(ary) \
     (assert(!FL_TEST((ary), ELTS_SHARED) || !FL_TEST((ary), RARRAY_EMBED_FLAG)), \
      FL_TEST((ary),ELTS_SHARED)!=0)
@@ -63,6 +43,7 @@ memfill(register VALUE *mem, register long size, register VALUE val)
     (assert(ARY_EMBED_P(a)), \
      (long)((RBASIC(a)->flags >> RARRAY_EMBED_LEN_SHIFT) & \
 	 (RARRAY_EMBED_LEN_MASK >> RARRAY_EMBED_LEN_SHIFT)))
+#define ARY_HEAP_SIZE(a) (assert(!ARY_EMBED_P(a)), assert(ARY_OWNS_HEAP_P(a)), RARRAY(a)->as.heap.aux.capa * sizeof(VALUE))
 
 #define ARY_OWNS_HEAP_P(a) (!FL_TEST((a), ELTS_SHARED|RARRAY_EMBED_FLAG))
 #define FL_SET_EMBED(a) do { \
@@ -127,15 +108,18 @@ memfill(register VALUE *mem, register long size, register VALUE val)
 
 #define ARY_SHARED(ary) (assert(ARY_SHARED_P(ary)), RARRAY(ary)->as.heap.aux.shared)
 #define ARY_SET_SHARED(ary, value) do { \
-    assert(!ARY_EMBED_P(ary)); \
-    assert(ARY_SHARED_P(ary)); \
-    assert(ARY_SHARED_ROOT_P(value)); \
-    RARRAY(ary)->as.heap.aux.shared = (value); \
+    const VALUE _ary_ = (ary); \
+    const VALUE _value_ = (value); \
+    assert(!ARY_EMBED_P(_ary_)); \
+    assert(ARY_SHARED_P(_ary_)); \
+    assert(ARY_SHARED_ROOT_P(_value_)); \
+    RB_OBJ_WRITE(_ary_, &RARRAY(_ary_)->as.heap.aux.shared, _value_); \
 } while (0)
 #define RARRAY_SHARED_ROOT_FLAG FL_USER5
 #define ARY_SHARED_ROOT_P(ary) (FL_TEST((ary), RARRAY_SHARED_ROOT_FLAG))
 #define ARY_SHARED_NUM(ary) \
     (assert(ARY_SHARED_ROOT_P(ary)), RARRAY(ary)->as.heap.aux.capa)
+#define ARY_SHARED_OCCUPIED(ary) (ARY_SHARED_NUM(ary) == 1)
 #define ARY_SET_SHARED_NUM(ary, value) do { \
     assert(ARY_SHARED_ROOT_P(ary)); \
     RARRAY(ary)->as.heap.aux.capa = (value); \
@@ -145,6 +129,74 @@ memfill(register VALUE *mem, register long size, register VALUE val)
     FL_SET((ary), RARRAY_SHARED_ROOT_FLAG); \
 } while (0)
 
+#define ARY_SET(a, i, v) RARRAY_ASET((assert(!ARY_SHARED_P(a)), (a)), (i), (v))
+
+void
+rb_mem_clear(register VALUE *mem, register long size)
+{
+    while (size--) {
+	*mem++ = Qnil;
+    }
+}
+
+static void
+ary_mem_clear(VALUE ary, long beg, long size)
+{
+    RARRAY_PTR_USE(ary, ptr, {
+	rb_mem_clear(ptr + beg, size);
+    });
+}
+
+static inline void
+memfill(register VALUE *mem, register long size, register VALUE val)
+{
+    while (size--) {
+	*mem++ = val;
+    }
+}
+
+static void
+ary_memfill(VALUE ary, long beg, long size, VALUE val)
+{
+    RARRAY_PTR_USE(ary, ptr, {
+	memfill(ptr + beg, size, val);
+	RB_OBJ_WRITTEN(ary, Qundef, val);
+    });
+}
+
+static void
+ary_memcpy0(VALUE ary, long beg, long argc, const VALUE *argv, VALUE buff_owner_ary)
+{
+#if 1
+    assert(!ARY_SHARED_P(buff_owner_ary));
+
+    if (argc > (int)(128/sizeof(VALUE)) /* is magic number (cache line size) */) {
+	rb_gc_writebarrier_remember(buff_owner_ary);
+	RARRAY_PTR_USE(ary, ptr, {
+	    MEMCPY(ptr+beg, argv, VALUE, argc);
+	});
+    }
+    else {
+	int i;
+	RARRAY_PTR_USE(ary, ptr, {
+	    for (i=0; i<argc; i++) {
+		RB_OBJ_WRITE(buff_owner_ary, &ptr[i+beg], argv[i]);
+	    }
+	});
+    }
+#else
+    /* giveup write barrier (traditional way) */
+    RARRAY_PTR(buff_owner_ary);
+    MEMCPY(RARRAY_PTR(ary)+beg, argv, VALUE, argc);
+#endif
+}
+
+static void
+ary_memcpy(VALUE ary, long beg, long argc, const VALUE *argv)
+{
+    ary_memcpy0(ary, beg, argc, argv, ary);
+}
+
 static void
 ary_resize_capa(VALUE ary, long capacity)
 {
@@ -161,23 +213,35 @@ ary_resize_capa(VALUE ary, long capacity)
             ARY_SET_HEAP_LEN(ary, len);
         }
         else {
-            REALLOC_N(RARRAY(ary)->as.heap.ptr, VALUE, (capacity));
+	    SIZED_REALLOC_N(RARRAY(ary)->as.heap.ptr, VALUE, capacity, RARRAY(ary)->as.heap.aux.capa);
         }
         ARY_SET_CAPA(ary, (capacity));
     }
     else {
         if (!ARY_EMBED_P(ary)) {
             long len = RARRAY_LEN(ary);
-            VALUE *ptr = RARRAY_PTR(ary);
-            if (len > capacity) len = capacity;
-            MEMCPY(RARRAY(ary)->as.ary, ptr, VALUE, len);
+	    const VALUE *ptr = RARRAY_CONST_PTR(ary);
+
+	    if (len > capacity) len = capacity;
+            MEMCPY((VALUE *)RARRAY(ary)->as.ary, ptr, VALUE, len);
             FL_SET_EMBED(ary);
             ARY_SET_LEN(ary, len);
-            xfree(ptr);
+	    ruby_xfree((VALUE *)ptr);
         }
     }
 }
 
+static inline void
+ary_shrink_capa(VALUE ary)
+{
+    long capacity = ARY_HEAP_LEN(ary);
+    long old_capa = RARRAY(ary)->as.heap.aux.capa;
+    assert(!ARY_SHARED_P(ary));
+    assert(old_capa >= capacity);
+    if (old_capa > capacity)
+	REALLOC_N(RARRAY(ary)->as.heap.ptr, VALUE, capacity);
+}
+
 static void
 ary_double_capa(VALUE ary, long min)
 {
@@ -246,8 +310,6 @@ static inline void
 rb_ary_modify_check(VALUE ary)
 {
     rb_check_frozen(ary);
-    if (!OBJ_UNTRUSTED(ary) && rb_safe_level() >= 4)
-	rb_raise(rb_eSecurityError, "Insecure: can't modify array");
 }
 
 void
@@ -255,57 +317,66 @@ rb_ary_modify(VALUE ary)
 {
     rb_ary_modify_check(ary);
     if (ARY_SHARED_P(ary)) {
-        long len = RARRAY_LEN(ary);
+	long shared_len, len = RARRAY_LEN(ary);
 	VALUE shared = ARY_SHARED(ary);
         if (len <= RARRAY_EMBED_LEN_MAX) {
-            VALUE *ptr = ARY_HEAP_PTR(ary);
+	    const VALUE *ptr = ARY_HEAP_PTR(ary);
             FL_UNSET_SHARED(ary);
             FL_SET_EMBED(ary);
-            MEMCPY(ARY_EMBED_PTR(ary), ptr, VALUE, len);
+	    MEMCPY((VALUE *)ARY_EMBED_PTR(ary), ptr, VALUE, len);
             rb_ary_decrement_share(shared);
             ARY_SET_EMBED_LEN(ary, len);
         }
-	else if (ARY_SHARED_NUM(shared) == 1 && len > (RARRAY_LEN(shared)>>1)) {
-	    long shift = RARRAY_PTR(ary) - RARRAY_PTR(shared);
+	else if (ARY_SHARED_OCCUPIED(shared) && len > ((shared_len = RARRAY_LEN(shared))>>1)) {
+	    long shift = RARRAY_CONST_PTR(ary) - RARRAY_CONST_PTR(shared);
 	    FL_UNSET_SHARED(ary);
-	    ARY_SET_PTR(ary, RARRAY_PTR(shared));
-	    ARY_SET_CAPA(ary, RARRAY_LEN(shared));
-	    MEMMOVE(RARRAY_PTR(ary), RARRAY_PTR(ary)+shift, VALUE, len);
+	    ARY_SET_PTR(ary, RARRAY_CONST_PTR(shared));
+	    ARY_SET_CAPA(ary, shared_len);
+	    RARRAY_PTR_USE(ary, ptr, {
+		MEMMOVE(ptr, ptr+shift, VALUE, len);
+	    });
 	    FL_SET_EMBED(shared);
 	    rb_ary_decrement_share(shared);
 	}
         else {
             VALUE *ptr = ALLOC_N(VALUE, len);
-            MEMCPY(ptr, RARRAY_PTR(ary), VALUE, len);
+            MEMCPY(ptr, RARRAY_CONST_PTR(ary), VALUE, len);
             rb_ary_unshare(ary);
             ARY_SET_CAPA(ary, len);
             ARY_SET_PTR(ary, ptr);
         }
+
+	rb_gc_writebarrier_remember(ary);
     }
 }
 
-static void
+static VALUE
 ary_ensure_room_for_push(VALUE ary, long add_len)
 {
-    long new_len = RARRAY_LEN(ary) + add_len;
+    long old_len = RARRAY_LEN(ary);
+    long new_len = old_len + add_len;
     long capa;
 
+    if (old_len > ARY_MAX_SIZE - add_len) {
+	rb_raise(rb_eIndexError, "index %ld too big", new_len);
+    }
     if (ARY_SHARED_P(ary)) {
 	if (new_len > RARRAY_EMBED_LEN_MAX) {
 	    VALUE shared = ARY_SHARED(ary);
-	    if (ARY_SHARED_NUM(shared) == 1) {
-		if (RARRAY_PTR(ary) - RARRAY_PTR(shared) + new_len <= RARRAY_LEN(shared)) {
+	    if (ARY_SHARED_OCCUPIED(shared)) {
+		if (RARRAY_CONST_PTR(ary) - RARRAY_CONST_PTR(shared) + new_len <= RARRAY_LEN(shared)) {
 		    rb_ary_modify_check(ary);
+		    return shared;
 		}
 		else {
-		    /* if array is shared, than it is likely it participate in push/shift pattern */
+		    /* if array is shared, then it is likely it participate in push/shift pattern */
 		    rb_ary_modify(ary);
 		    capa = ARY_CAPA(ary);
 		    if (new_len > capa - (capa >> 6)) {
 			ary_double_capa(ary, new_len);
 		    }
+		    return ary;
 		}
-		return;
 	    }
 	}
     }
@@ -314,6 +385,8 @@ ary_ensure_room_for_push(VALUE ary, long add_len)
     if (new_len > capa) {
 	ary_double_capa(ary, new_len);
     }
+
+    return ary;
 }
 
 /*
@@ -369,27 +442,25 @@ rb_ary_shared_with_p(VALUE ary1, VALUE ary2)
 static VALUE
 ary_alloc(VALUE klass)
 {
-    NEWOBJ_OF(ary, struct RArray, klass, T_ARRAY);
-    FL_SET_EMBED((VALUE)ary);
-    ARY_SET_EMBED_LEN((VALUE)ary, 0);
-
+    NEWOBJ_OF(ary, struct RArray, klass, T_ARRAY | RARRAY_EMBED_FLAG | (RGENGC_WB_PROTECTED_ARRAY ? FL_WB_PROTECTED : 0));
+    /* Created array is:
+     *   FL_SET_EMBED((VALUE)ary);
+     *   ARY_SET_EMBED_LEN((VALUE)ary, 0);
+     */
     return (VALUE)ary;
 }
 
 static VALUE
 empty_ary_alloc(VALUE klass)
 {
-    if (RUBY_DTRACE_ARRAY_CREATE_ENABLED()) {
-	RUBY_DTRACE_ARRAY_CREATE(0, rb_sourcefile(), rb_sourceline());
-    }
-
+    RUBY_DTRACE_CREATE_HOOK(ARRAY, 0);
     return ary_alloc(klass);
 }
 
 static VALUE
 ary_new(VALUE klass, long capa)
 {
-    VALUE ary;
+    VALUE ary,*ptr;
 
     if (capa < 0) {
 	rb_raise(rb_eArgError, "negative array size (or size too big)");
@@ -398,14 +469,13 @@ ary_new(VALUE klass, long capa)
 	rb_raise(rb_eArgError, "array size too big");
     }
 
-    if (RUBY_DTRACE_ARRAY_CREATE_ENABLED()) {
-	RUBY_DTRACE_ARRAY_CREATE(capa, rb_sourcefile(), rb_sourceline());
-    }
+    RUBY_DTRACE_CREATE_HOOK(ARRAY, capa);
 
     ary = ary_alloc(klass);
     if (capa > RARRAY_EMBED_LEN_MAX) {
+	ptr = ALLOC_N(VALUE, capa);
         FL_UNSET_EMBED(ary);
-        ARY_SET_PTR(ary, ALLOC_N(VALUE, capa));
+        ARY_SET_PTR(ary, ptr);
         ARY_SET_CAPA(ary, capa);
         ARY_SET_HEAP_LEN(ary, 0);
     }
@@ -414,22 +484,19 @@ ary_new(VALUE klass, long capa)
 }
 
 VALUE
-rb_ary_new2(long capa)
+rb_ary_new_capa(long capa)
 {
     return ary_new(rb_cArray, capa);
 }
 
-
 VALUE
 rb_ary_new(void)
 {
     return rb_ary_new2(RARRAY_EMBED_LEN_MAX);
 }
 
-#include <stdarg.h>
-
 VALUE
-rb_ary_new3(long n, ...)
+(rb_ary_new_from_args)(long n, ...)
 {
     va_list ar;
     VALUE ary;
@@ -439,7 +506,7 @@ rb_ary_new3(long n, ...)
 
     va_start(ar, n);
     for (i=0; i<n; i++) {
-	RARRAY_PTR(ary)[i] = va_arg(ar, VALUE);
+	ARY_SET(ary, i, va_arg(ar, VALUE));
     }
     va_end(ar);
 
@@ -448,13 +515,13 @@ rb_ary_new3(long n, ...)
 }
 
 VALUE
-rb_ary_new4(long n, const VALUE *elts)
+rb_ary_new_from_values(long n, const VALUE *elts)
 {
     VALUE ary;
 
     ary = rb_ary_new2(n);
     if (n > 0 && elts) {
-	MEMCPY(RARRAY_PTR(ary), elts, VALUE, n);
+	ary_memcpy(ary, 0, n, elts);
 	ARY_SET_LEN(ary, n);
     }
 
@@ -467,11 +534,20 @@ rb_ary_tmp_new(long capa)
     return ary_new(0, capa);
 }
 
+VALUE
+rb_ary_tmp_new_fill(long capa)
+{
+    VALUE ary = ary_new(0, capa);
+    ary_memfill(ary, 0, capa, Qnil);
+    ARY_SET_LEN(ary, capa);
+    return ary;
+}
+
 void
 rb_ary_free(VALUE ary)
 {
     if (ARY_OWNS_HEAP_P(ary)) {
-	xfree(ARY_HEAP_PTR(ary));
+	ruby_sized_xfree((void *)ARY_HEAP_PTR(ary), ARY_HEAP_SIZE(ary));
     }
 }
 
@@ -505,18 +581,19 @@ ary_make_shared(VALUE ary)
 	return ary;
     }
     else if (OBJ_FROZEN(ary)) {
-	ary_resize_capa(ary, ARY_HEAP_LEN(ary));
+	ary_shrink_capa(ary);
 	FL_SET_SHARED_ROOT(ary);
 	ARY_SET_SHARED_NUM(ary, 1);
 	return ary;
     }
     else {
-	NEWOBJ_OF(shared, struct RArray, 0, T_ARRAY);
+	long capa = ARY_CAPA(ary), len = RARRAY_LEN(ary);
+	NEWOBJ_OF(shared, struct RArray, 0, T_ARRAY | (RGENGC_WB_PROTECTED_ARRAY ? FL_WB_PROTECTED : 0));
         FL_UNSET_EMBED(shared);
 
-        ARY_SET_LEN((VALUE)shared, ARY_CAPA(ary));
-        ARY_SET_PTR((VALUE)shared, RARRAY_PTR(ary));
-	rb_mem_clear(RARRAY_PTR(shared) + RARRAY_LEN(ary), ARY_CAPA(ary) - RARRAY_LEN(ary));
+	ARY_SET_LEN((VALUE)shared, capa);
+	ARY_SET_PTR((VALUE)shared, RARRAY_CONST_PTR(ary));
+	ary_mem_clear((VALUE)shared, len, capa - len);
 	FL_SET_SHARED_ROOT(shared);
 	ARY_SET_SHARED_NUM((VALUE)shared, 1);
 	FL_SET_SHARED(ary);
@@ -526,14 +603,15 @@ ary_make_shared(VALUE ary)
     }
 }
 
-
 static VALUE
 ary_make_substitution(VALUE ary)
 {
-    if (RARRAY_LEN(ary) <= RARRAY_EMBED_LEN_MAX) {
-        VALUE subst = rb_ary_new2(RARRAY_LEN(ary));
-        MEMCPY(ARY_EMBED_PTR(subst), RARRAY_PTR(ary), VALUE, RARRAY_LEN(ary));
-        ARY_SET_EMBED_LEN(subst, RARRAY_LEN(ary));
+    long len = RARRAY_LEN(ary);
+
+    if (len <= RARRAY_EMBED_LEN_MAX) {
+	VALUE subst = rb_ary_new2(len);
+	ary_memcpy(subst, 0, len, RARRAY_CONST_PTR(ary));
+        ARY_SET_EMBED_LEN(subst, len);
         return subst;
     }
     else {
@@ -586,16 +664,16 @@ rb_ary_s_try_convert(VALUE dummy, VALUE ary)
 
 /*
  *  call-seq:
- *     Array.new(size=0, obj=nil)
+ *     Array.new(size=0, default=nil)
  *     Array.new(array)
  *     Array.new(size) {|index| block }
  *
  *  Returns a new array.
  *
  *  In the first form, if no arguments are sent, the new array will be empty.
- *  When a +size+ and an optional +obj+ are sent, an array is created with
- *  +size+ copies of +obj+.  Take notice that all elements will reference the
- *  same object +obj+.
+ *  When a +size+ and an optional +default+ are sent, an array is created with
+ *  +size+ copies of +default+.  Take notice that all elements will reference the
+ *  same object +default+.
  *
  *  The second form creates a copy of the array passed as a parameter (the
  *  array is generated by calling to_ary on the parameter).
@@ -648,8 +726,8 @@ rb_ary_initialize(int argc, VALUE *argv, VALUE ary)
 
     rb_ary_modify(ary);
     if (argc == 0) {
-	if (ARY_OWNS_HEAP_P(ary) && RARRAY_PTR(ary)) {
-	    xfree(RARRAY_PTR(ary));
+	if (ARY_OWNS_HEAP_P(ary) && RARRAY_CONST_PTR(ary) != 0) {
+	    ruby_sized_xfree((void *)RARRAY_CONST_PTR(ary), ARY_HEAP_SIZE(ary));
 	}
         rb_ary_unshare_safe(ary);
         FL_SET_EMBED(ary);
@@ -669,12 +747,14 @@ rb_ary_initialize(int argc, VALUE *argv, VALUE ary)
     }
 
     len = NUM2LONG(size);
+    /* NUM2LONG() may call size.to_int, ary can be frozen, modified, etc */
     if (len < 0) {
 	rb_raise(rb_eArgError, "negative array size");
     }
     if (len > ARY_MAX_SIZE) {
 	rb_raise(rb_eArgError, "array size too big");
     }
+    /* recheck after argument conversion */
     rb_ary_modify(ary);
     ary_resize_capa(ary, len);
     if (rb_block_given_p()) {
@@ -689,7 +769,7 @@ rb_ary_initialize(int argc, VALUE *argv, VALUE ary)
 	}
     }
     else {
-	memfill(RARRAY_PTR(ary), len, val);
+	ary_memfill(ary, 0, len, val);
 	ARY_SET_LEN(ary, len);
     }
     return ary;
@@ -708,7 +788,7 @@ rb_ary_s_create(int argc, VALUE *argv, VALUE klass)
 {
     VALUE ary = ary_new(klass, argc);
     if (argc > 0 && argv) {
-        MEMCPY(RARRAY_PTR(ary), argv, VALUE, argc);
+        ary_memcpy(ary, 0, argc, argv);
         ARY_SET_LEN(ary, argc);
     }
 
@@ -718,11 +798,13 @@ rb_ary_s_create(int argc, VALUE *argv, VALUE klass)
 void
 rb_ary_store(VALUE ary, long idx, VALUE val)
 {
+    long len = RARRAY_LEN(ary);
+
     if (idx < 0) {
-	idx += RARRAY_LEN(ary);
+	idx += len;
 	if (idx < 0) {
 	    rb_raise(rb_eIndexError, "index %ld too small for array; minimum: %ld",
-		     idx - RARRAY_LEN(ary), -RARRAY_LEN(ary));
+		     idx - len, -len);
 	}
     }
     else if (idx >= ARY_MAX_SIZE) {
@@ -733,15 +815,14 @@ rb_ary_store(VALUE ary, long idx, VALUE val)
     if (idx >= ARY_CAPA(ary)) {
 	ary_double_capa(ary, idx);
     }
-    if (idx > RARRAY_LEN(ary)) {
-	rb_mem_clear(RARRAY_PTR(ary) + RARRAY_LEN(ary),
-		     idx-RARRAY_LEN(ary) + 1);
+    if (idx > len) {
+	ary_mem_clear(ary, len, idx - len + 1);
     }
 
-    if (idx >= RARRAY_LEN(ary)) {
+    if (idx >= len) {
 	ARY_SET_LEN(ary, idx + 1);
     }
-    RARRAY_PTR(ary)[idx] = val;
+    ARY_SET(ary, idx, val);
 }
 
 static VALUE
@@ -753,7 +834,7 @@ ary_make_partial(VALUE ary, VALUE klass, long offset, long len)
 
     if (len <= RARRAY_EMBED_LEN_MAX) {
         VALUE result = ary_alloc(klass);
-        MEMCPY(ARY_EMBED_PTR(result), RARRAY_PTR(ary) + offset, VALUE, len);
+	ary_memcpy(result, 0, len, RARRAY_CONST_PTR(ary) + offset);
         ARY_SET_EMBED_LEN(result, len);
         return result;
     }
@@ -762,7 +843,7 @@ ary_make_partial(VALUE ary, VALUE klass, long offset, long len)
         FL_UNSET_EMBED(result);
 
         shared = ary_make_shared(ary);
-        ARY_SET_PTR(result, RARRAY_PTR(ary));
+        ARY_SET_PTR(result, RARRAY_CONST_PTR(ary));
         ARY_SET_LEN(result, RARRAY_LEN(ary));
         rb_ary_set_shared(result, shared);
 
@@ -785,22 +866,24 @@ enum ary_take_pos_flags
 };
 
 static VALUE
-ary_take_first_or_last(int argc, VALUE *argv, VALUE ary, enum ary_take_pos_flags last)
+ary_take_first_or_last(int argc, const VALUE *argv, VALUE ary, enum ary_take_pos_flags last)
 {
     VALUE nv;
     long n;
+    long len;
     long offset = 0;
 
     rb_scan_args(argc, argv, "1", &nv);
     n = NUM2LONG(nv);
-    if (n > RARRAY_LEN(ary)) {
-	n = RARRAY_LEN(ary);
+    len = RARRAY_LEN(ary);
+    if (n > len) {
+	n = len;
     }
     else if (n < 0) {
 	rb_raise(rb_eArgError, "negative array size");
     }
     if (last) {
-	offset = RARRAY_LEN(ary) - n;
+	offset = len - n;
     }
     return ary_make_partial(ary, rb_cArray, offset, n);
 }
@@ -822,33 +905,20 @@ VALUE
 rb_ary_push(VALUE ary, VALUE item)
 {
     long idx = RARRAY_LEN(ary);
-
-    ary_ensure_room_for_push(ary, 1);
-    RARRAY_PTR(ary)[idx] = item;
-    ARY_SET_LEN(ary, idx + 1);
-    return ary;
-}
-
-static VALUE
-rb_ary_push_1(VALUE ary, VALUE item)
-{
-    long idx = RARRAY_LEN(ary);
-
-    if (idx >= ARY_CAPA(ary)) {
-	ary_double_capa(ary, idx);
-    }
-    RARRAY_PTR(ary)[idx] = item;
+    VALUE target_ary = ary_ensure_room_for_push(ary, 1);
+    RARRAY_PTR_USE(ary, ptr, {
+	RB_OBJ_WRITE(target_ary, &ptr[idx], item);
+    });
     ARY_SET_LEN(ary, idx + 1);
     return ary;
 }
 
 VALUE
-rb_ary_cat(VALUE ary, const VALUE *ptr, long len)
+rb_ary_cat(VALUE ary, const VALUE *argv, long len)
 {
     long oldlen = RARRAY_LEN(ary);
-
-    ary_ensure_room_for_push(ary, len);
-    MEMCPY(RARRAY_PTR(ary) + oldlen, ptr, VALUE, len);
+    VALUE target_ary = ary_ensure_room_for_push(ary, len);
+    ary_memcpy0(ary, oldlen, len, argv, target_ary);
     ARY_SET_LEN(ary, oldlen + len);
     return ary;
 }
@@ -880,16 +950,17 @@ rb_ary_pop(VALUE ary)
 {
     long n;
     rb_ary_modify_check(ary);
-    if (RARRAY_LEN(ary) == 0) return Qnil;
+    n = RARRAY_LEN(ary);
+    if (n == 0) return Qnil;
     if (ARY_OWNS_HEAP_P(ary) &&
-	RARRAY_LEN(ary) * 3 < ARY_CAPA(ary) &&
+	n * 3 < ARY_CAPA(ary) &&
 	ARY_CAPA(ary) > ARY_DEFAULT_SIZE)
     {
-	ary_resize_capa(ary, RARRAY_LEN(ary) * 2);
+	ary_resize_capa(ary, n * 2);
     }
-    n = RARRAY_LEN(ary)-1;
+    --n;
     ARY_SET_LEN(ary, n);
-    return RARRAY_PTR(ary)[n];
+    return RARRAY_AREF(ary, n);
 }
 
 /*
@@ -929,23 +1000,26 @@ VALUE
 rb_ary_shift(VALUE ary)
 {
     VALUE top;
+    long len = RARRAY_LEN(ary);
 
     rb_ary_modify_check(ary);
-    if (RARRAY_LEN(ary) == 0) return Qnil;
-    top = RARRAY_PTR(ary)[0];
+    if (len == 0) return Qnil;
+    top = RARRAY_AREF(ary, 0);
     if (!ARY_SHARED_P(ary)) {
-	if (RARRAY_LEN(ary) < ARY_DEFAULT_SIZE) {
-	    MEMMOVE(RARRAY_PTR(ary), RARRAY_PTR(ary)+1, VALUE, RARRAY_LEN(ary)-1);
+	if (len < ARY_DEFAULT_SIZE) {
+	    RARRAY_PTR_USE(ary, ptr, {
+		MEMMOVE(ptr, ptr+1, VALUE, len-1);
+	    }); /* WB: no new reference */
             ARY_INCREASE_LEN(ary, -1);
 	    return top;
 	}
         assert(!ARY_EMBED_P(ary)); /* ARY_EMBED_LEN_MAX < ARY_DEFAULT_SIZE */
 
-	RARRAY_PTR(ary)[0] = Qnil;
+	ARY_SET(ary, 0, Qnil);
 	ary_make_shared(ary);
     }
-    else if (ARY_SHARED_NUM(ARY_SHARED(ary)) == 1) {
-	RARRAY_PTR(ary)[0] = Qnil;
+    else if (ARY_SHARED_OCCUPIED(ARY_SHARED(ary))) {
+	RARRAY_PTR_USE(ary, ptr, ptr[0] = Qnil);
     }
     ARY_INCREASE_PTR(ary, 1);		/* shift ptr */
     ARY_INCREASE_LEN(ary, -1);
@@ -990,33 +1064,46 @@ rb_ary_shift_m(int argc, VALUE *argv, VALUE ary)
     result = ary_take_first_or_last(argc, argv, ary, ARY_TAKE_FIRST);
     n = RARRAY_LEN(result);
     if (ARY_SHARED_P(ary)) {
-	if (ARY_SHARED_NUM(ARY_SHARED(ary)) == 1) {
-	    rb_mem_clear(RARRAY_PTR(ary), n);
+	if (ARY_SHARED_OCCUPIED(ARY_SHARED(ary))) {
+	  setup_occupied_shared:
+	    ary_mem_clear(ary, 0, n);
 	}
         ARY_INCREASE_PTR(ary, n);
     }
     else {
-	MEMMOVE(RARRAY_PTR(ary), RARRAY_PTR(ary)+n, VALUE, RARRAY_LEN(ary)-n);
+	if (RARRAY_LEN(ary) < ARY_DEFAULT_SIZE) {
+	    RARRAY_PTR_USE(ary, ptr, {
+		MEMMOVE(ptr, ptr+n, VALUE, RARRAY_LEN(ary)-n);
+	    }); /* WB: no new reference */
+	}
+	else {
+	    ary_make_shared(ary);
+	    goto setup_occupied_shared;
+	}
     }
     ARY_INCREASE_LEN(ary, -n);
 
     return result;
 }
 
-static void
+static VALUE
 ary_ensure_room_for_unshift(VALUE ary, int argc)
 {
     long len = RARRAY_LEN(ary);
     long new_len = len + argc;
     long capa;
-    VALUE *head, *sharedp;
+    const VALUE *head, *sharedp;
+
+    if (len > ARY_MAX_SIZE - argc) {
+	rb_raise(rb_eIndexError, "index %ld too big", new_len);
+    }
 
     if (ARY_SHARED_P(ary)) {
 	VALUE shared = ARY_SHARED(ary);
 	capa = RARRAY_LEN(shared);
-	if (ARY_SHARED_NUM(shared) == 1 && capa > new_len) {
-	    head = RARRAY_PTR(ary);
-	    sharedp = RARRAY_PTR(shared);
+	if (ARY_SHARED_OCCUPIED(shared) && capa > new_len) {
+	    head = RARRAY_CONST_PTR(ary);
+	    sharedp = RARRAY_CONST_PTR(shared);
 	    goto makeroom_if_need;
 	}
     }
@@ -1033,7 +1120,7 @@ ary_ensure_room_for_unshift(VALUE ary, int argc)
 	capa = ARY_CAPA(ary);
 	ary_make_shared(ary);
 
-	head = sharedp = RARRAY_PTR(ary);
+	head = sharedp = RARRAY_CONST_PTR(ary);
 	goto makeroom;
       makeroom_if_need:
 	if (head - sharedp < argc) {
@@ -1041,14 +1128,20 @@ ary_ensure_room_for_unshift(VALUE ary, int argc)
 	  makeroom:
 	    room = capa - new_len;
 	    room -= room >> 4;
-	    MEMMOVE(sharedp + argc + room, head, VALUE, len);
+	    MEMMOVE((VALUE *)sharedp + argc + room, head, VALUE, len);
 	    head = sharedp + argc + room;
 	}
 	ARY_SET_PTR(ary, head - argc);
+	assert(ARY_SHARED_OCCUPIED(ARY_SHARED(ary)));
+	return ARY_SHARED(ary);
     }
     else {
 	/* sliding items */
-	MEMMOVE(RARRAY_PTR(ary) + argc, RARRAY_PTR(ary), VALUE, len);
+	RARRAY_PTR_USE(ary, ptr, {
+	    MEMMOVE(ptr + argc, ptr, VALUE, len);
+	});
+
+	return ary;
     }
 }
 
@@ -1068,14 +1161,15 @@ static VALUE
 rb_ary_unshift_m(int argc, VALUE *argv, VALUE ary)
 {
     long len = RARRAY_LEN(ary);
+    VALUE target_ary;
 
     if (argc == 0) {
 	rb_ary_modify_check(ary);
 	return ary;
     }
 
-    ary_ensure_room_for_unshift(ary, argc);
-    MEMCPY(RARRAY_PTR(ary), argv, VALUE, argc);
+    target_ary = ary_ensure_room_for_unshift(ary, argc);
+    ary_memcpy0(ary, 0, argc, argv, target_ary);
     ARY_SET_LEN(ary, len + argc);
     return ary;
 }
@@ -1090,11 +1184,12 @@ rb_ary_unshift(VALUE ary, VALUE item)
 static inline VALUE
 rb_ary_elt(VALUE ary, long offset)
 {
-    if (RARRAY_LEN(ary) == 0) return Qnil;
-    if (offset < 0 || RARRAY_LEN(ary) <= offset) {
+    long len = RARRAY_LEN(ary);
+    if (len == 0) return Qnil;
+    if (offset < 0 || len <= offset) {
 	return Qnil;
     }
-    return RARRAY_PTR(ary)[offset];
+    return RARRAY_AREF(ary, offset);
 }
 
 VALUE
@@ -1110,12 +1205,13 @@ VALUE
 rb_ary_subseq(VALUE ary, long beg, long len)
 {
     VALUE klass;
+    long alen = RARRAY_LEN(ary);
 
-    if (beg > RARRAY_LEN(ary)) return Qnil;
+    if (beg > alen) return Qnil;
     if (beg < 0 || len < 0) return Qnil;
 
-    if (RARRAY_LEN(ary) < len || RARRAY_LEN(ary) < beg + len) {
-	len = RARRAY_LEN(ary) - beg;
+    if (alen < len || alen < beg + len) {
+	len = alen - beg;
     }
     klass = rb_obj_class(ary);
     if (len == 0) return ary_new(klass, 0);
@@ -1160,7 +1256,7 @@ rb_ary_subseq(VALUE ary, long beg, long len)
  */
 
 VALUE
-rb_ary_aref(int argc, VALUE *argv, VALUE ary)
+rb_ary_aref(int argc, const VALUE *argv, VALUE ary)
 {
     VALUE arg;
     long beg, len;
@@ -1206,7 +1302,7 @@ rb_ary_aref(int argc, VALUE *argv, VALUE ary)
  *     a.at(-1)    #=> "e"
  */
 
-static VALUE
+VALUE
 rb_ary_at(VALUE ary, VALUE pos)
 {
     return rb_ary_entry(ary, NUM2LONG(pos));
@@ -1232,7 +1328,7 @@ rb_ary_first(int argc, VALUE *argv, VALUE ary)
 {
     if (argc == 0) {
 	if (RARRAY_LEN(ary) == 0) return Qnil;
-	return RARRAY_PTR(ary)[0];
+	return RARRAY_AREF(ary, 0);
     }
     else {
 	return ary_take_first_or_last(argc, argv, ary, ARY_TAKE_FIRST);
@@ -1255,11 +1351,12 @@ rb_ary_first(int argc, VALUE *argv, VALUE ary)
  */
 
 VALUE
-rb_ary_last(int argc, VALUE *argv, VALUE ary)
+rb_ary_last(int argc, const VALUE *argv, VALUE ary)
 {
     if (argc == 0) {
-	if (RARRAY_LEN(ary) == 0) return Qnil;
-	return RARRAY_PTR(ary)[RARRAY_LEN(ary)-1];
+	long len = RARRAY_LEN(ary);
+	if (len == 0) return Qnil;
+	return RARRAY_AREF(ary, len-1);
     }
     else {
 	return ary_take_first_or_last(argc, argv, ary, ARY_TAKE_LAST);
@@ -1314,11 +1411,14 @@ rb_ary_fetch(int argc, VALUE *argv, VALUE ary)
 	}
 	return ifnone;
     }
-    return RARRAY_PTR(ary)[idx];
+    return RARRAY_AREF(ary, idx);
 }
 
 /*
  *  call-seq:
+ *     ary.find_index(obj)             ->  int or nil
+ *     ary.find_index { |item| block } ->  int or nil
+ *     ary.find_index                  ->  Enumerator
  *     ary.index(obj)             ->  int or nil
  *     ary.index { |item| block } ->  int or nil
  *     ary.index                  ->  Enumerator
@@ -1338,31 +1438,42 @@ rb_ary_fetch(int argc, VALUE *argv, VALUE ary)
  *     a.index("b")              #=> 1
  *     a.index("z")              #=> nil
  *     a.index { |x| x == "b" }  #=> 1
- *
- *  This is an alias of Array#find_index.
  */
 
 static VALUE
 rb_ary_index(int argc, VALUE *argv, VALUE ary)
 {
+    const VALUE *ptr;
     VALUE val;
-    long i;
+    long i, len;
 
     if (argc == 0) {
 	RETURN_ENUMERATOR(ary, 0, 0);
 	for (i=0; i<RARRAY_LEN(ary); i++) {
-	    if (RTEST(rb_yield(RARRAY_PTR(ary)[i]))) {
+	    if (RTEST(rb_yield(RARRAY_AREF(ary, i)))) {
 		return LONG2NUM(i);
 	    }
 	}
 	return Qnil;
     }
-    rb_scan_args(argc, argv, "1", &val);
+    rb_check_arity(argc, 0, 1);
+    val = argv[0];
     if (rb_block_given_p())
 	rb_warn("given block not used");
-    for (i=0; i<RARRAY_LEN(ary); i++) {
-	if (rb_equal(RARRAY_PTR(ary)[i], val))
+    len = RARRAY_LEN(ary);
+    ptr = RARRAY_CONST_PTR(ary);
+    for (i=0; i<len; i++) {
+	VALUE e = ptr[i];
+	switch (rb_equal_opt(e, val)) {
+	  case Qundef:
+	    if (!rb_equal(e, val)) break;
+	  case Qtrue:
 	    return LONG2NUM(i);
+	  case Qfalse:
+	    continue;
+	}
+	len = RARRAY_LEN(ary);
+	ptr = RARRAY_CONST_PTR(ary);
     }
     return Qnil;
 }
@@ -1394,29 +1505,40 @@ rb_ary_index(int argc, VALUE *argv, VALUE ary)
 static VALUE
 rb_ary_rindex(int argc, VALUE *argv, VALUE ary)
 {
+    const VALUE *ptr;
     VALUE val;
-    long i = RARRAY_LEN(ary);
+    long i = RARRAY_LEN(ary), len;
 
     if (argc == 0) {
 	RETURN_ENUMERATOR(ary, 0, 0);
 	while (i--) {
-	    if (RTEST(rb_yield(RARRAY_PTR(ary)[i])))
+	    if (RTEST(rb_yield(RARRAY_AREF(ary, i))))
 		return LONG2NUM(i);
-	    if (i > RARRAY_LEN(ary)) {
-		i = RARRAY_LEN(ary);
+	    if (i > (len = RARRAY_LEN(ary))) {
+		i = len;
 	    }
 	}
 	return Qnil;
     }
-    rb_scan_args(argc, argv, "1", &val);
+    rb_check_arity(argc, 0, 1);
+    val = argv[0];
     if (rb_block_given_p())
 	rb_warn("given block not used");
+    ptr = RARRAY_CONST_PTR(ary);
     while (i--) {
-	if (rb_equal(RARRAY_PTR(ary)[i], val))
+	VALUE e = ptr[i];
+	switch (rb_equal_opt(e, val)) {
+	  case Qundef:
+	    if (!rb_equal(e, val)) break;
+	  case Qtrue:
 	    return LONG2NUM(i);
-	if (i > RARRAY_LEN(ary)) {
-	    i = RARRAY_LEN(ary);
+	  case Qfalse:
+	    continue;
 	}
+	if (i > (len = RARRAY_LEN(ary))) {
+	    i = len;
+	}
+	ptr = RARRAY_CONST_PTR(ary);
     }
     return Qnil;
 }
@@ -1434,17 +1556,19 @@ static void
 rb_ary_splice(VALUE ary, long beg, long len, VALUE rpl)
 {
     long rlen;
+    long olen;
 
     if (len < 0) rb_raise(rb_eIndexError, "negative length (%ld)", len);
+    olen = RARRAY_LEN(ary);
     if (beg < 0) {
-	beg += RARRAY_LEN(ary);
+	beg += olen;
 	if (beg < 0) {
 	    rb_raise(rb_eIndexError, "index %ld too small for array; minimum: %ld",
-		     beg - RARRAY_LEN(ary), -RARRAY_LEN(ary));
+		     beg - olen, -olen);
 	}
     }
-    if (RARRAY_LEN(ary) < len || RARRAY_LEN(ary) < beg + len) {
-	len = RARRAY_LEN(ary) - beg;
+    if (olen < len || olen < beg + len) {
+	len = olen - beg;
     }
 
     if (rpl == Qundef) {
@@ -1453,37 +1577,44 @@ rb_ary_splice(VALUE ary, long beg, long len, VALUE rpl)
     else {
 	rpl = rb_ary_to_ary(rpl);
 	rlen = RARRAY_LEN(rpl);
+	olen = RARRAY_LEN(ary);	/* ary may be resized in rpl.to_ary too */
     }
-    if (beg >= RARRAY_LEN(ary)) {
+    if (beg >= olen) {
+	VALUE target_ary;
 	if (beg > ARY_MAX_SIZE - rlen) {
 	    rb_raise(rb_eIndexError, "index %ld too big", beg);
 	}
-	ary_ensure_room_for_push(ary, rlen-len); /* len is 0 or negative */
+	target_ary = ary_ensure_room_for_push(ary, rlen-len); /* len is 0 or negative */
 	len = beg + rlen;
-	rb_mem_clear(RARRAY_PTR(ary) + RARRAY_LEN(ary), beg - RARRAY_LEN(ary));
+	ary_mem_clear(ary, olen, beg - olen);
 	if (rlen > 0) {
-	    MEMCPY(RARRAY_PTR(ary) + beg, RARRAY_PTR(rpl), VALUE, rlen);
+	    ary_memcpy0(ary, beg, rlen, RARRAY_CONST_PTR(rpl), target_ary);
 	}
 	ARY_SET_LEN(ary, len);
     }
     else {
 	long alen;
 
+	if (olen - len > ARY_MAX_SIZE - rlen) {
+	    rb_raise(rb_eIndexError, "index %ld too big", olen + rlen - len);
+	}
 	rb_ary_modify(ary);
-	alen = RARRAY_LEN(ary) + rlen - len;
+	alen = olen + rlen - len;
 	if (alen >= ARY_CAPA(ary)) {
 	    ary_double_capa(ary, alen);
 	}
 
 	if (len != rlen) {
-	    MEMMOVE(RARRAY_PTR(ary) + beg + rlen, RARRAY_PTR(ary) + beg + len,
-		    VALUE, RARRAY_LEN(ary) - (beg + len));
+	    RARRAY_PTR_USE(ary, ptr,
+			   MEMMOVE(ptr + beg + rlen, ptr + beg + len,
+				   VALUE, olen - (beg + len)));
 	    ARY_SET_LEN(ary, alen);
 	}
 	if (rlen > 0) {
-	    MEMMOVE(RARRAY_PTR(ary) + beg, RARRAY_PTR(rpl), VALUE, rlen);
+	    MEMMOVE(RARRAY_PTR(ary) + beg, RARRAY_CONST_PTR(rpl), VALUE, rlen);
 	}
     }
+    RB_GC_GUARD(rpl);
 }
 
 void
@@ -1524,8 +1655,8 @@ rb_ary_resize(VALUE ary, long len)
 	if (len >= ARY_CAPA(ary)) {
 	    ary_double_capa(ary, len);
 	}
-	rb_mem_clear(RARRAY_PTR(ary) + olen, len - olen);
-        ARY_SET_LEN(ary, len);
+	ary_mem_clear(ary, olen, len - olen);
+	ARY_SET_LEN(ary, len);
     }
     else if (ARY_EMBED_P(ary)) {
         ARY_SET_EMBED_LEN(ary, len);
@@ -1534,12 +1665,12 @@ rb_ary_resize(VALUE ary, long len)
 	VALUE tmp[RARRAY_EMBED_LEN_MAX];
 	MEMCPY(tmp, ARY_HEAP_PTR(ary), VALUE, len);
 	ary_discard(ary);
-	MEMCPY(ARY_EMBED_PTR(ary), tmp, VALUE, len);
+	MEMCPY((VALUE *)ARY_EMBED_PTR(ary), tmp, VALUE, len); /* WB: no new reference */
         ARY_SET_EMBED_LEN(ary, len);
     }
     else {
 	if (olen > len + ARY_DEFAULT_SIZE) {
-	    REALLOC_N(RARRAY(ary)->as.heap.ptr, VALUE, len);
+	    SIZED_REALLOC_N(RARRAY(ary)->as.heap.ptr, VALUE, len, RARRAY(ary)->as.heap.aux.capa);
 	    ARY_SET_CAPA(ary, len);
 	}
 	ARY_SET_HEAP_LEN(ary, len);
@@ -1619,7 +1750,9 @@ fixnum:
  *  Inserts the given values before the element with the given +index+.
  *
  *  Negative indices count backwards from the end of the array, where +-1+ is
- *  the last element.
+ *  the last element. If a negative index is used, the given values will be
+ *  inserted after that element, so using an index of +-1+ will insert the
+ *  values at the end of the array.
  *
  *     a = %w{ a b c d }
  *     a.insert(2, 99)         #=> ["a", "b", 99, "c", "d"]
@@ -1633,8 +1766,8 @@ rb_ary_insert(int argc, VALUE *argv, VALUE ary)
 
     rb_check_arity(argc, 1, UNLIMITED_ARGUMENTS);
     rb_ary_modify_check(ary);
-    if (argc == 1) return ary;
     pos = NUM2LONG(argv[0]);
+    if (argc == 1) return ary;
     if (pos == -1) {
 	pos = RARRAY_LEN(ary);
     }
@@ -1648,15 +1781,21 @@ rb_ary_insert(int argc, VALUE *argv, VALUE ary)
 static VALUE
 rb_ary_length(VALUE ary);
 
+static VALUE
+ary_enum_length(VALUE ary, VALUE args, VALUE eobj)
+{
+    return rb_ary_length(ary);
+}
+
 /*
  *  call-seq:
  *     ary.each { |item| block }  -> ary
  *     ary.each                   -> Enumerator
  *
  *  Calls the given block once for each element in +self+, passing that element
- *  as a parameter.
+ *  as a parameter.  Returns the array itself.
  *
- *  An Enumerator is returned if no block is given.
+ *  If no block is given, an Enumerator is returned.
  *
  *     a = [ "a", "b", "c" ]
  *     a.each {|x| print x, " -- " }
@@ -1667,14 +1806,13 @@ rb_ary_length(VALUE ary);
  */
 
 VALUE
-rb_ary_each(VALUE array)
+rb_ary_each(VALUE ary)
 {
     long i;
-    volatile VALUE ary = array;
 
-    RETURN_SIZED_ENUMERATOR(ary, 0, 0, rb_ary_length);
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
     for (i=0; i<RARRAY_LEN(ary); i++) {
-	rb_yield(RARRAY_PTR(ary)[i]);
+	rb_yield(RARRAY_AREF(ary, i));
     }
     return ary;
 }
@@ -1701,7 +1839,7 @@ static VALUE
 rb_ary_each_index(VALUE ary)
 {
     long i;
-    RETURN_SIZED_ENUMERATOR(ary, 0, 0, rb_ary_length);
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
 
     for (i=0; i<RARRAY_LEN(ary); i++) {
 	rb_yield(LONG2NUM(i));
@@ -1729,12 +1867,14 @@ rb_ary_reverse_each(VALUE ary)
 {
     long len;
 
-    RETURN_SIZED_ENUMERATOR(ary, 0, 0, rb_ary_length);
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
     len = RARRAY_LEN(ary);
     while (len--) {
-	rb_yield(RARRAY_PTR(ary)[len]);
-	if (RARRAY_LEN(ary) < len) {
-	    len = RARRAY_LEN(ary);
+	long nlen;
+	rb_yield(RARRAY_AREF(ary, len));
+	nlen = RARRAY_LEN(ary);
+	if (nlen < len) {
+	    len = nlen;
 	}
     }
     return ary;
@@ -1777,16 +1917,17 @@ rb_ary_empty_p(VALUE ary)
 VALUE
 rb_ary_dup(VALUE ary)
 {
-    VALUE dup = rb_ary_new2(RARRAY_LEN(ary));
-    MEMCPY(RARRAY_PTR(dup), RARRAY_PTR(ary), VALUE, RARRAY_LEN(ary));
-    ARY_SET_LEN(dup, RARRAY_LEN(ary));
+    long len = RARRAY_LEN(ary);
+    VALUE dup = rb_ary_new2(len);
+    ary_memcpy(dup, 0, len, RARRAY_CONST_PTR(ary));
+    ARY_SET_LEN(dup, len);
     return dup;
 }
 
 VALUE
 rb_ary_resurrect(VALUE ary)
 {
-    return rb_ary_new4(RARRAY_LEN(ary), RARRAY_PTR(ary));
+    return rb_ary_new4(RARRAY_LEN(ary), RARRAY_CONST_PTR(ary));
 }
 
 extern VALUE rb_output_fs;
@@ -1817,14 +1958,13 @@ ary_join_0(VALUE ary, VALUE sep, long max, VALUE result)
     long i;
     VALUE val;
 
-    if (max > 0) rb_enc_copy(result, RARRAY_PTR(ary)[0]);
+    if (max > 0) rb_enc_copy(result, RARRAY_AREF(ary, 0));
     for (i=0; i<max; i++) {
-	val = RARRAY_PTR(ary)[i];
+	val = RARRAY_AREF(ary, i);
 	if (i > 0 && !NIL_P(sep))
 	    rb_str_buf_append(result, sep);
 	rb_str_buf_append(result, val);
 	if (OBJ_TAINTED(val)) OBJ_TAINT(result);
-	if (OBJ_UNTRUSTED(val)) OBJ_TAINT(result);
     }
 }
 
@@ -1837,14 +1977,13 @@ ary_join_1(VALUE obj, VALUE ary, VALUE sep, long i, VALUE result, int *first)
 	if (i > 0 && !NIL_P(sep))
 	    rb_str_buf_append(result, sep);
 
-	val = RARRAY_PTR(ary)[i];
-	switch (TYPE(val)) {
-	  case T_STRING:
+	val = RARRAY_AREF(ary, i);
+	if (RB_TYPE_P(val, T_STRING)) {
 	  str_join:
 	    rb_str_buf_append(result, val);
 	    *first = FALSE;
-	    break;
-	  case T_ARRAY:
+	}
+	else if (RB_TYPE_P(val, T_ARRAY)) {
 	    obj = val;
 	  ary_join:
 	    if (val == ary) {
@@ -1859,8 +1998,8 @@ ary_join_1(VALUE obj, VALUE ary, VALUE sep, long i, VALUE result, int *first)
 		args[3] = (VALUE)first;
 		rb_exec_recursive(recursive_join, obj, (VALUE)args);
 	    }
-	    break;
-	  default:
+	}
+	else {
 	    tmp = rb_check_string_type(val);
 	    if (!NIL_P(tmp)) {
 		val = tmp;
@@ -1887,19 +2026,17 @@ rb_ary_join(VALUE ary, VALUE sep)
 {
     long len = 1, i;
     int taint = FALSE;
-    int untrust = FALSE;
     VALUE val, tmp, result;
 
     if (RARRAY_LEN(ary) == 0) return rb_usascii_str_new(0, 0);
     if (OBJ_TAINTED(ary)) taint = TRUE;
-    if (OBJ_UNTRUSTED(ary)) untrust = TRUE;
 
     if (!NIL_P(sep)) {
 	StringValue(sep);
 	len += RSTRING_LEN(sep) * (RARRAY_LEN(ary) - 1);
     }
     for (i=0; i<RARRAY_LEN(ary); i++) {
-	val = RARRAY_PTR(ary)[i];
+	val = RARRAY_AREF(ary, i);
 	tmp = rb_check_string_type(val);
 
 	if (NIL_P(tmp) || tmp != val) {
@@ -1907,7 +2044,6 @@ rb_ary_join(VALUE ary, VALUE sep)
 	    result = rb_str_buf_new(len + (RARRAY_LEN(ary)-i)*10);
 	    rb_enc_associate(result, rb_usascii_encoding());
 	    if (taint) OBJ_TAINT(result);
-	    if (untrust) OBJ_UNTRUST(result);
 	    ary_join_0(ary, sep, i, result);
 	    first = i == 0;
 	    ary_join_1(ary, ary, sep, i, result, &first);
@@ -1919,7 +2055,6 @@ rb_ary_join(VALUE ary, VALUE sep)
 
     result = rb_str_buf_new(len);
     if (taint) OBJ_TAINT(result);
-    if (untrust) OBJ_UNTRUST(result);
     ary_join_0(ary, sep, RARRAY_LEN(ary), result);
 
     return result;
@@ -1953,23 +2088,20 @@ static VALUE
 inspect_ary(VALUE ary, VALUE dummy, int recur)
 {
     int tainted = OBJ_TAINTED(ary);
-    int untrust = OBJ_UNTRUSTED(ary);
     long i;
     VALUE s, str;
 
     if (recur) return rb_usascii_str_new_cstr("[...]");
     str = rb_str_buf_new2("[");
     for (i=0; i<RARRAY_LEN(ary); i++) {
-	s = rb_inspect(RARRAY_PTR(ary)[i]);
+	s = rb_inspect(RARRAY_AREF(ary, i));
 	if (OBJ_TAINTED(s)) tainted = TRUE;
-	if (OBJ_UNTRUSTED(s)) untrust = TRUE;
 	if (i > 0) rb_str_buf_cat2(str, ", ");
 	else rb_enc_copy(str, s);
 	rb_str_buf_append(str, s);
     }
     rb_str_buf_cat2(str, "]");
     if (tainted) OBJ_TAINT(str);
-    if (untrust) OBJ_UNTRUST(str);
     return str;
 }
 
@@ -2018,6 +2150,38 @@ rb_ary_to_a(VALUE ary)
 
 /*
  *  call-seq:
+ *     ary.to_h     -> hash
+ *
+ *  Returns the result of interpreting <i>ary</i> as an array of
+ *  <tt>[key, value]</tt> pairs.
+ *
+ *     [[:foo, :bar], [1, 2]].to_h
+ *       # => {:foo => :bar, 1 => 2}
+ */
+
+static VALUE
+rb_ary_to_h(VALUE ary)
+{
+    long i;
+    VALUE hash = rb_hash_new();
+    for (i=0; i<RARRAY_LEN(ary); i++) {
+	const VALUE elt = rb_ary_elt(ary, i);
+	const VALUE key_value_pair = rb_check_array_type(elt);
+	if (NIL_P(key_value_pair)) {
+	    rb_raise(rb_eTypeError, "wrong element type %"PRIsVALUE" at %ld (expected array)",
+		     rb_obj_class(elt), i);
+	}
+	if (RARRAY_LEN(key_value_pair) != 2) {
+	    rb_raise(rb_eArgError, "wrong array length at %ld (expected 2, was %ld)",
+		i, RARRAY_LEN(key_value_pair));
+	}
+	rb_hash_aset(hash, RARRAY_AREF(key_value_pair, 0), RARRAY_AREF(key_value_pair, 1));
+    }
+    return hash;
+}
+
+/*
+ *  call-seq:
  *     ary.to_ary -> ary
  *
  *  Returns +self+.
@@ -2042,13 +2206,15 @@ ary_reverse(VALUE *p1, VALUE *p2)
 VALUE
 rb_ary_reverse(VALUE ary)
 {
-    VALUE *p1, *p2;
+    VALUE *p2;
+    long len = RARRAY_LEN(ary);
 
     rb_ary_modify(ary);
-    if (RARRAY_LEN(ary) > 1) {
-	p1 = RARRAY_PTR(ary);
-	p2 = p1 + RARRAY_LEN(ary) - 1;	/* points last item */
-	ary_reverse(p1, p2);
+    if (len > 1) {
+	RARRAY_PTR_USE(ary, p1, {
+	    p2 = p1 + len - 1;	/* points last item */
+	    ary_reverse(p1, p2);
+	}); /* WB: no new reference */
     }
     return ary;
 }
@@ -2087,8 +2253,8 @@ rb_ary_reverse_m(VALUE ary)
     VALUE dup = rb_ary_new2(len);
 
     if (len > 0) {
-	VALUE *p1 = RARRAY_PTR(ary);
-	VALUE *p2 = RARRAY_PTR(dup) + len - 1;
+	const VALUE *p1 = RARRAY_CONST_PTR(ary);
+	VALUE *p2 = (VALUE *)RARRAY_CONST_PTR(dup) + len - 1;
 	do *p2-- = *p1++; while (--len > 0);
     }
     ARY_SET_LEN(dup, RARRAY_LEN(ary));
@@ -2173,7 +2339,8 @@ rb_ary_rotate_bang(int argc, VALUE *argv, VALUE ary)
 static VALUE
 rb_ary_rotate_m(int argc, VALUE *argv, VALUE ary)
 {
-    VALUE rotated, *ptr, *ptr2;
+    VALUE rotated;
+    const VALUE *ptr;
     long len, cnt = 1;
 
     switch (argc) {
@@ -2186,11 +2353,10 @@ rb_ary_rotate_m(int argc, VALUE *argv, VALUE ary)
     rotated = rb_ary_new2(len);
     if (len > 0) {
 	cnt = rotate_count(cnt, len);
-	ptr = RARRAY_PTR(ary);
-	ptr2 = RARRAY_PTR(rotated);
+	ptr = RARRAY_CONST_PTR(ary);
 	len -= cnt;
-	MEMCPY(ptr2, ptr + cnt, VALUE, len);
-	MEMCPY(ptr2 + len, ptr, VALUE, cnt);
+	ary_memcpy(rotated, 0, len, ptr + cnt);
+	ary_memcpy(rotated, len, cnt, ptr);
     }
     ARY_SET_LEN(rotated, RARRAY_LEN(ary));
     return rotated;
@@ -2258,7 +2424,7 @@ sort_2(const void *ap, const void *bp, void *dummy)
 	return rb_str_cmp(a, b);
     }
 
-    retval = rb_funcall(a, id_cmp, 1, b);
+    retval = rb_funcallv(a, id_cmp, 1, &b);
     n = rb_cmpint(retval, a, b);
     sort_reentered(data->ary);
 
@@ -2275,9 +2441,9 @@ sort_2(const void *ap, const void *bp, void *dummy)
  *  Comparisons for the sort will be done using the <code><=></code> operator
  *  or using an optional code block.
  *
- *  The block must implement a comparison between +a+ and +b+, and return
- *  +-1+, when +a+ follows +b+, +0+ when +a+ and +b+ are equivalent, or ++1+
- *  if +b+ follows +a+.
+ *  The block must implement a comparison between +a+ and +b+ and return
+ *  an integer less than 0 when +b+ follows +a+, +0+ when +a+ and +b+
+ *  are equivalent, or an integer greater than 0 when +a+ follows +b+.
  *
  *  See also Enumerable#sort_by.
  *
@@ -2296,26 +2462,25 @@ rb_ary_sort_bang(VALUE ary)
 	struct ary_sort_data data;
 	long len = RARRAY_LEN(ary);
 
-	RBASIC(tmp)->klass = 0;
+	RBASIC_CLEAR_CLASS(tmp);
 	data.ary = tmp;
 	data.opt_methods = 0;
 	data.opt_inited = 0;
-	ruby_qsort(RARRAY_PTR(tmp), len, sizeof(VALUE),
-		   rb_block_given_p()?sort_1:sort_2, &data);
-
+	RARRAY_PTR_USE(tmp, ptr, {
+	    ruby_qsort(ptr, len, sizeof(VALUE),
+		       rb_block_given_p()?sort_1:sort_2, &data);
+	}); /* WB: no new reference */
+	rb_ary_modify(ary);
         if (ARY_EMBED_P(tmp)) {
-            assert(ARY_EMBED_P(tmp));
             if (ARY_SHARED_P(ary)) { /* ary might be destructively operated in the given block */
                 rb_ary_unshare(ary);
+		FL_SET_EMBED(ary);
             }
-            FL_SET_EMBED(ary);
-            MEMCPY(RARRAY_PTR(ary), ARY_EMBED_PTR(tmp), VALUE, ARY_EMBED_LEN(tmp));
+	    ary_memcpy(ary, 0, ARY_EMBED_LEN(tmp), ARY_EMBED_PTR(tmp));
             ARY_SET_LEN(ary, ARY_EMBED_LEN(tmp));
         }
         else {
-            assert(!ARY_EMBED_P(tmp));
-            if (ARY_HEAP_PTR(ary) == ARY_HEAP_PTR(tmp)) {
-                assert(!ARY_EMBED_P(ary));
+            if (!ARY_EMBED_P(ary) && ARY_HEAP_PTR(ary) == ARY_HEAP_PTR(tmp)) {
                 FL_UNSET_SHARED(ary);
                 ARY_SET_CAPA(ary, RARRAY_LEN(tmp));
             }
@@ -2329,9 +2494,9 @@ rb_ary_sort_bang(VALUE ary)
                     rb_ary_unshare(ary);
                 }
                 else {
-                    xfree(ARY_HEAP_PTR(ary));
+		    ruby_sized_xfree((void *)ARY_HEAP_PTR(ary), ARY_HEAP_SIZE(ary));
                 }
-                ARY_SET_PTR(ary, RARRAY_PTR(tmp));
+                ARY_SET_PTR(ary, RARRAY_CONST_PTR(tmp));
                 ARY_SET_HEAP_LEN(ary, len);
                 ARY_SET_CAPA(ary, RARRAY_LEN(tmp));
             }
@@ -2342,7 +2507,7 @@ rb_ary_sort_bang(VALUE ary)
             FL_SET(tmp, FL_FREEZE);
 	}
         /* tmp will be GC'ed. */
-        RBASIC(tmp)->klass = rb_cArray;
+        RBASIC_SET_CLASS_RAW(tmp, rb_cArray); /* rb_cArray must be marked */
     }
     return ary;
 }
@@ -2357,9 +2522,9 @@ rb_ary_sort_bang(VALUE ary)
  *  Comparisons for the sort will be done using the <code><=></code> operator
  *  or using an optional code block.
  *
- *  The block must implement a comparison between +a+ and +b+, and return
- *  +-1+, when +a+ follows +b+, +0+ when +a+ and +b+ are equivalent, or ++1+
- *  if +b+ follows +a+.
+ *  The block must implement a comparison between +a+ and +b+ and return
+ *  an integer less than 0 when +b+ follows +a+, +0+ when +a+ and +b+
+ *  are equivalent, or an integer greater than 0 when +a+ follows +b+.
  *
  *
  *  See also Enumerable#sort_by.
@@ -2377,6 +2542,8 @@ rb_ary_sort(VALUE ary)
     return ary;
 }
 
+static VALUE rb_ary_bsearch_index(VALUE ary);
+
 /*
  *  call-seq:
  *     ary.bsearch {|x| block }  -> elem
@@ -2433,6 +2600,30 @@ rb_ary_sort(VALUE ary)
 static VALUE
 rb_ary_bsearch(VALUE ary)
 {
+    VALUE index_result = rb_ary_bsearch_index(ary);
+
+    if (FIXNUM_P(index_result)) {
+	return rb_ary_entry(ary, FIX2LONG(index_result));
+    }
+    return index_result;
+}
+
+/*
+ *  call-seq:
+ *     ary.bsearch_index {|x| block }  -> int or nil
+ *
+ *  By using binary search, finds an index of a value from this array which
+ *  meets the given condition in O(log n) where n is the size of the array.
+ *
+ *  It supports two modes, depending on the nature of the block and they are
+ *  exactly the same as in the case of #bsearch method with the only difference
+ *  being that this method returns the index of the element instead of the
+ *  element itself. For more details consult the documentation for #bsearch.
+ */
+
+static VALUE
+rb_ary_bsearch_index(VALUE ary)
+{
     long low = 0, high = RARRAY_LEN(ary), mid;
     int smaller = 0, satisfied = 0;
     VALUE v, val;
@@ -2443,8 +2634,8 @@ rb_ary_bsearch(VALUE ary)
 	val = rb_ary_entry(ary, mid);
 	v = rb_yield(val);
 	if (FIXNUM_P(v)) {
-	    if (FIX2INT(v) == 0) return val;
-	    smaller = FIX2INT(v) < 0;
+	    if (v == INT2FIX(0)) return INT2FIX(mid);
+	    smaller = (SIGNED_VALUE)v < 0; /* Fixnum preserves its sign-bit */
 	}
 	else if (v == Qtrue) {
 	    satisfied = 1;
@@ -2454,16 +2645,17 @@ rb_ary_bsearch(VALUE ary)
 	    smaller = 0;
 	}
 	else if (rb_obj_is_kind_of(v, rb_cNumeric)) {
-	    switch (rb_cmpint(rb_funcall(v, id_cmp, 1, INT2FIX(0)), v, INT2FIX(0))) {
-		case 0: return val;
-		case 1: smaller = 1; break;
-		case -1: smaller = 0;
+	    const VALUE zero = INT2FIX(0);
+	    switch (rb_cmpint(rb_funcallv(v, id_cmp, 1, &zero), v, zero)) {
+	      case 0: return INT2FIX(mid);
+	      case 1: smaller = 1; break;
+	      case -1: smaller = 0;
 	    }
 	}
 	else {
-	    rb_raise(rb_eTypeError, "wrong argument type %s"
-		" (must be numeric, true, false or nil)",
-		rb_obj_classname(v));
+	    rb_raise(rb_eTypeError, "wrong argument type %"PRIsVALUE
+		     " (must be numeric, true, false or nil)",
+		     rb_obj_class(v));
 	}
 	if (smaller) {
 	    high = mid;
@@ -2472,14 +2664,13 @@ rb_ary_bsearch(VALUE ary)
 	    low = mid + 1;
 	}
     }
-    if (low == RARRAY_LEN(ary)) return Qnil;
     if (!satisfied) return Qnil;
-    return rb_ary_entry(ary, low);
+    return INT2FIX(low);
 }
 
 
 static VALUE
-sort_by_i(VALUE i)
+sort_by_i(RB_BLOCK_CALL_FUNC_ARGLIST(i, dummy))
 {
     return rb_yield(i);
 }
@@ -2501,7 +2692,7 @@ rb_ary_sort_by_bang(VALUE ary)
 {
     VALUE sorted;
 
-    RETURN_SIZED_ENUMERATOR(ary, 0, 0, rb_ary_length);
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
     rb_ary_modify(ary);
     sorted = rb_block_call(ary, rb_intern("sort_by"), 0, 0, sort_by_i, 0);
     rb_ary_replace(ary, sorted);
@@ -2525,8 +2716,9 @@ rb_ary_sort_by_bang(VALUE ary)
  *  If no block is given, an Enumerator is returned instead.
  *
  *     a = [ "a", "b", "c", "d" ]
- *     a.map { |x| x + "!" }   #=> ["a!", "b!", "c!", "d!"]
- *     a                       #=> ["a", "b", "c", "d"]
+ *     a.collect { |x| x + "!" }         #=> ["a!", "b!", "c!", "d!"]
+ *     a.map.with_index { |x, i| x * i } #=> ["", "b", "cc", "ddd"]
+ *     a                                 #=> ["a", "b", "c", "d"]
  */
 
 static VALUE
@@ -2535,10 +2727,10 @@ rb_ary_collect(VALUE ary)
     long i;
     VALUE collect;
 
-    RETURN_SIZED_ENUMERATOR(ary, 0, 0, rb_ary_length);
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
     collect = rb_ary_new2(RARRAY_LEN(ary));
     for (i = 0; i < RARRAY_LEN(ary); i++) {
-	rb_ary_push(collect, rb_yield(RARRAY_PTR(ary)[i]));
+	rb_ary_push(collect, rb_yield(RARRAY_AREF(ary, i)));
     }
     return collect;
 }
@@ -2561,6 +2753,8 @@ rb_ary_collect(VALUE ary)
  *     a = [ "a", "b", "c", "d" ]
  *     a.map! {|x| x + "!" }
  *     a #=>  [ "a!", "b!", "c!", "d!" ]
+ *     a.collect!.with_index {|x, i| x[0...i] }
+ *     a #=>  ["", "b", "c!", "d!"]
  */
 
 static VALUE
@@ -2568,16 +2762,16 @@ rb_ary_collect_bang(VALUE ary)
 {
     long i;
 
-    RETURN_SIZED_ENUMERATOR(ary, 0, 0, rb_ary_length);
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
     rb_ary_modify(ary);
     for (i = 0; i < RARRAY_LEN(ary); i++) {
-	rb_ary_store(ary, i, rb_yield(RARRAY_PTR(ary)[i]));
+	rb_ary_store(ary, i, rb_yield(RARRAY_AREF(ary, i)));
     }
     return ary;
 }
 
 VALUE
-rb_get_values_at(VALUE obj, long olen, int argc, VALUE *argv, VALUE (*func) (VALUE, long))
+rb_get_values_at(VALUE obj, long olen, int argc, const VALUE *argv, VALUE (*func) (VALUE, long))
 {
     VALUE result = rb_ary_new2(argc);
     long beg, len, i, j;
@@ -2651,16 +2845,60 @@ rb_ary_select(VALUE ary)
     VALUE result;
     long i;
 
-    RETURN_SIZED_ENUMERATOR(ary, 0, 0, rb_ary_length);
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
     result = rb_ary_new2(RARRAY_LEN(ary));
     for (i = 0; i < RARRAY_LEN(ary); i++) {
-	if (RTEST(rb_yield(RARRAY_PTR(ary)[i]))) {
+	if (RTEST(rb_yield(RARRAY_AREF(ary, i)))) {
 	    rb_ary_push(result, rb_ary_elt(ary, i));
 	}
     }
     return result;
 }
 
+struct select_bang_arg {
+    VALUE ary;
+    long len[2];
+};
+
+static VALUE
+select_bang_i(VALUE a)
+{
+    volatile struct select_bang_arg *arg = (void *)a;
+    VALUE ary = arg->ary;
+    long i1, i2;
+
+    for (i1 = i2 = 0; i1 < RARRAY_LEN(ary); arg->len[0] = ++i1) {
+	VALUE v = RARRAY_AREF(ary, i1);
+	if (!RTEST(rb_yield(v))) continue;
+	if (i1 != i2) {
+	    rb_ary_store(ary, i2, v);
+	}
+	arg->len[1] = ++i2;
+    }
+    return (i1 == i2) ? Qnil : ary;
+}
+
+static VALUE
+select_bang_ensure(VALUE a)
+{
+    volatile struct select_bang_arg *arg = (void *)a;
+    VALUE ary = arg->ary;
+    long len = RARRAY_LEN(ary);
+    long i1 = arg->len[0], i2 = arg->len[1];
+
+    if (i2 < len && i2 < i1) {
+	long tail = 0;
+	if (i1 < len) {
+	    tail = len - i1;
+	    RARRAY_PTR_USE(ary, ptr, {
+		    MEMMOVE(ptr + i2, ptr + i1, VALUE, tail);
+		});
+	}
+	ARY_SET_LEN(ary, i2 + tail);
+    }
+    return ary;
+}
+
 /*
  *  call-seq:
  *     ary.select!  {|item| block } -> ary or nil
@@ -2669,6 +2907,8 @@ rb_ary_select(VALUE ary)
  *  Invokes the given block passing in successive elements from +self+,
  *  deleting elements for which the block returns a +false+ value.
  *
+ *  The array may not be changed instantly every time the block is called.
+ *
  *  If changes were made, it will return +self+, otherwise it returns +nil+.
  *
  *  See also Array#keep_if
@@ -2680,23 +2920,14 @@ rb_ary_select(VALUE ary)
 static VALUE
 rb_ary_select_bang(VALUE ary)
 {
-    long i1, i2;
+    struct select_bang_arg args;
 
-    RETURN_SIZED_ENUMERATOR(ary, 0, 0, rb_ary_length);
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
     rb_ary_modify(ary);
-    for (i1 = i2 = 0; i1 < RARRAY_LEN(ary); i1++) {
-	VALUE v = RARRAY_PTR(ary)[i1];
-	if (!RTEST(rb_yield(v))) continue;
-	if (i1 != i2) {
-	    rb_ary_store(ary, i2, v);
-	}
-	i2++;
-    }
 
-    if (RARRAY_LEN(ary) == i2) return Qnil;
-    if (i2 < RARRAY_LEN(ary))
-	ARY_SET_LEN(ary, i2);
-    return ary;
+    args.ary = ary;
+    args.len[0] = args.len[1] = 0;
+    return rb_ensure(select_bang_i, (VALUE)&args, select_bang_ensure, (VALUE)&args);
 }
 
 /*
@@ -2718,7 +2949,7 @@ rb_ary_select_bang(VALUE ary)
 static VALUE
 rb_ary_keep_if(VALUE ary)
 {
-    RETURN_SIZED_ENUMERATOR(ary, 0, 0, rb_ary_length);
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
     rb_ary_select_bang(ary);
     return ary;
 }
@@ -2763,7 +2994,7 @@ rb_ary_delete(VALUE ary, VALUE item)
     long i1, i2;
 
     for (i1 = i2 = 0; i1 < RARRAY_LEN(ary); i1++) {
-	VALUE e = RARRAY_PTR(ary)[i1];
+	VALUE e = RARRAY_AREF(ary, i1);
 
 	if (rb_equal(e, item)) {
 	    v = e;
@@ -2792,7 +3023,7 @@ rb_ary_delete_same(VALUE ary, VALUE item)
     long i1, i2;
 
     for (i1 = i2 = 0; i1 < RARRAY_LEN(ary); i1++) {
-	VALUE e = RARRAY_PTR(ary)[i1];
+	VALUE e = RARRAY_AREF(ary, i1);
 
 	if (e == item) {
 	    continue;
@@ -2822,9 +3053,10 @@ rb_ary_delete_at(VALUE ary, long pos)
     }
 
     rb_ary_modify(ary);
-    del = RARRAY_PTR(ary)[pos];
-    MEMMOVE(RARRAY_PTR(ary)+pos, RARRAY_PTR(ary)+pos+1, VALUE,
-	    RARRAY_LEN(ary)-pos-1);
+    del = RARRAY_AREF(ary, pos);
+    RARRAY_PTR_USE(ary, ptr, {
+	MEMMOVE(ptr+pos, ptr+pos+1, VALUE, len-pos-1);
+    });
     ARY_INCREASE_LEN(ary, -1);
 
     return del;
@@ -2894,8 +3126,8 @@ rb_ary_slice_bang(int argc, VALUE *argv, VALUE ary)
 	    len = orig_len - pos;
 	}
 	if (len == 0) return rb_ary_new2(0);
-	arg2 = rb_ary_new4(len, RARRAY_PTR(ary)+pos);
-	RBASIC(arg2)->klass = rb_obj_class(ary);
+	arg2 = rb_ary_new4(len, RARRAY_CONST_PTR(ary)+pos);
+	RBASIC_SET_CLASS(arg2, rb_obj_class(ary));
 	rb_ary_splice(ary, pos, len, Qundef);
 	return arg2;
     }
@@ -2929,32 +3161,41 @@ ary_reject(VALUE orig, VALUE result)
     long i;
 
     for (i = 0; i < RARRAY_LEN(orig); i++) {
-	VALUE v = RARRAY_PTR(orig)[i];
+	VALUE v = RARRAY_AREF(orig, i);
 	if (!RTEST(rb_yield(v))) {
-	    rb_ary_push_1(result, v);
+	    rb_ary_push(result, v);
 	}
     }
     return result;
 }
 
 static VALUE
-ary_reject_bang(VALUE ary)
+reject_bang_i(VALUE a)
 {
-    long i;
-    VALUE result = Qnil;
+    volatile struct select_bang_arg *arg = (void *)a;
+    VALUE ary = arg->ary;
+    long i1, i2;
 
-    rb_ary_modify_check(ary);
-    for (i = 0; i < RARRAY_LEN(ary); ) {
-	VALUE v = RARRAY_PTR(ary)[i];
-	if (RTEST(rb_yield(v))) {
-	    rb_ary_delete_at(ary, i);
-	    result = ary;
-	}
-	else {
-	    i++;
+    for (i1 = i2 = 0; i1 < RARRAY_LEN(ary); arg->len[0] = ++i1) {
+	VALUE v = RARRAY_AREF(ary, i1);
+	if (RTEST(rb_yield(v))) continue;
+	if (i1 != i2) {
+	    rb_ary_store(ary, i2, v);
 	}
+	arg->len[1] = ++i2;
     }
-    return result;
+    return (i1 == i2) ? Qnil : ary;
+}
+
+static VALUE
+ary_reject_bang(VALUE ary)
+{
+    struct select_bang_arg args;
+
+    rb_ary_modify_check(ary);
+    args.ary = ary;
+    args.len[0] = args.len[1] = 0;
+    return rb_ensure(reject_bang_i, (VALUE)&args, select_bang_ensure, (VALUE)&args);
 }
 
 /*
@@ -2962,11 +3203,10 @@ ary_reject_bang(VALUE ary)
  *     ary.reject! { |item| block }  -> ary or nil
  *     ary.reject!                   -> Enumerator
  *
- *  Equivalent to Array#delete_if, deleting elements from +self+ for which the
- *  block evaluates to +true+, but returns +nil+ if no changes were made.
+ *  Deletes every element of +self+ for which the block evaluates to +true+,
+ *  if no changes were made returns +nil+.
  *
- *  The array is changed instantly every time the block is called, not after
- *  the iteration is over.
+ *  The array may not be changed instantly every time the block is called.
  *
  *  See also Enumerable#reject and Array#delete_if.
  *
@@ -2976,7 +3216,7 @@ ary_reject_bang(VALUE ary)
 static VALUE
 rb_ary_reject_bang(VALUE ary)
 {
-    RETURN_SIZED_ENUMERATOR(ary, 0, 0, rb_ary_length);
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
     return ary_reject_bang(ary);
 }
 
@@ -2986,7 +3226,7 @@ rb_ary_reject_bang(VALUE ary)
  *     ary.reject                   -> Enumerator
  *
  *  Returns a new array containing the items in +self+ for which the given
- *  block is not +true+.
+ *  block is not +true+. The ordering of non-rejected elements is maintained.
  *
  *  See also Array#delete_if
  *
@@ -2998,7 +3238,7 @@ rb_ary_reject(VALUE ary)
 {
     VALUE rejected_ary;
 
-    RETURN_SIZED_ENUMERATOR(ary, 0, 0, rb_ary_length);
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
     rejected_ary = rb_ary_new();
     ary_reject(ary, rejected_ary);
     return rejected_ary;
@@ -3018,21 +3258,22 @@ rb_ary_reject(VALUE ary)
  *
  *  If no block is given, an Enumerator is returned instead.
  *
- *     a = [ "a", "b", "c" ]
- *     a.delete_if {|x| x >= "b" }   #=> ["a"]
+ *     scores = [ 97, 42, 75 ]
+ *     scores.delete_if {|score| score < 80 }   #=> [97]
  */
 
 static VALUE
 rb_ary_delete_if(VALUE ary)
 {
-    RETURN_SIZED_ENUMERATOR(ary, 0, 0, rb_ary_length);
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
     ary_reject_bang(ary);
     return ary;
 }
 
 static VALUE
-take_i(VALUE val, VALUE *args, int argc, VALUE *argv)
+take_i(RB_BLOCK_CALL_FUNC_ARGLIST(val, cbarg))
 {
+    VALUE *args = (VALUE *)cbarg;
     if (args[1]-- == 0) rb_iter_break();
     if (argc > 1) val = rb_ary_new4(argc, argv);
     rb_ary_push(args[0], val);
@@ -3049,8 +3290,8 @@ take_items(VALUE obj, long n)
     result = rb_ary_new2(n);
     args[0] = result; args[1] = (VALUE)n;
     if (rb_check_block_call(obj, idEach, 0, 0, take_i, (VALUE)args) == Qundef)
-        rb_raise(rb_eTypeError, "wrong argument type %s (must respond to :each)",
-            rb_obj_classname(obj));
+	rb_raise(rb_eTypeError, "wrong argument type %"PRIsVALUE" (must respond to :each)",
+		 rb_obj_class(obj));
     return result;
 }
 
@@ -3083,31 +3324,57 @@ static VALUE
 rb_ary_zip(int argc, VALUE *argv, VALUE ary)
 {
     int i, j;
-    long len;
+    long len = RARRAY_LEN(ary);
     VALUE result = Qnil;
 
-    len = RARRAY_LEN(ary);
     for (i=0; i<argc; i++) {
 	argv[i] = take_items(argv[i], len);
     }
-    if (!rb_block_given_p()) {
-	result = rb_ary_new2(len);
-    }
 
-    for (i=0; i<RARRAY_LEN(ary); i++) {
-	VALUE tmp = rb_ary_new2(argc+1);
+    if (rb_block_given_p()) {
+	int arity = rb_block_arity();
 
-	rb_ary_push(tmp, rb_ary_elt(ary, i));
-	for (j=0; j<argc; j++) {
-	    rb_ary_push(tmp, rb_ary_elt(argv[j], i));
-	}
-	if (NIL_P(result)) {
-	    rb_yield(tmp);
+	if (arity > 1) {
+	    VALUE work, *tmp;
+
+	    tmp = ALLOCV_N(VALUE, work, argc+1);
+
+	    for (i=0; i<RARRAY_LEN(ary); i++) {
+		tmp[0] = RARRAY_AREF(ary, i);
+		for (j=0; j<argc; j++) {
+		    tmp[j+1] = rb_ary_elt(argv[j], i);
+		}
+		rb_yield_values2(argc+1, tmp);
+	    }
+
+	    if (work) ALLOCV_END(work);
 	}
 	else {
+	    for (i=0; i<RARRAY_LEN(ary); i++) {
+		VALUE tmp = rb_ary_new2(argc+1);
+
+		rb_ary_push(tmp, RARRAY_AREF(ary, i));
+		for (j=0; j<argc; j++) {
+		    rb_ary_push(tmp, rb_ary_elt(argv[j], i));
+		}
+		rb_yield(tmp);
+	    }
+	}
+    }
+    else {
+	result = rb_ary_new_capa(len);
+
+	for (i=0; i<len; i++) {
+	    VALUE tmp = rb_ary_new_capa(argc+1);
+
+	    rb_ary_push(tmp, RARRAY_AREF(ary, i));
+	    for (j=0; j<argc; j++) {
+		rb_ary_push(tmp, rb_ary_elt(argv[j], i));
+	    }
 	    rb_ary_push(result, tmp);
 	}
     }
+
     return result;
 }
 
@@ -3155,6 +3422,7 @@ rb_ary_transpose(VALUE ary)
 /*
  *  call-seq:
  *     ary.replace(other_ary)  -> ary
+ *     ary.initialize_copy(other_ary)	-> ary
  *
  *  Replaces the contents of +self+ with the contents of +other_ary+,
  *  truncating or expanding if necessary.
@@ -3172,19 +3440,17 @@ rb_ary_replace(VALUE copy, VALUE orig)
     if (copy == orig) return copy;
 
     if (RARRAY_LEN(orig) <= RARRAY_EMBED_LEN_MAX) {
-        VALUE *ptr;
         VALUE shared = 0;
 
         if (ARY_OWNS_HEAP_P(copy)) {
-            xfree(RARRAY_PTR(copy));
-        }
+	    RARRAY_PTR_USE(copy, ptr, ruby_sized_xfree(ptr, ARY_HEAP_SIZE(copy)));
+	}
         else if (ARY_SHARED_P(copy)) {
             shared = ARY_SHARED(copy);
             FL_UNSET_SHARED(copy);
         }
         FL_SET_EMBED(copy);
-        ptr = RARRAY_PTR(orig);
-        MEMCPY(RARRAY_PTR(copy), ptr, VALUE, RARRAY_LEN(orig));
+	ary_memcpy(copy, 0, RARRAY_LEN(orig), RARRAY_CONST_PTR(orig));
         if (shared) {
             rb_ary_decrement_share(shared);
         }
@@ -3193,13 +3459,13 @@ rb_ary_replace(VALUE copy, VALUE orig)
     else {
         VALUE shared = ary_make_shared(orig);
         if (ARY_OWNS_HEAP_P(copy)) {
-            xfree(RARRAY_PTR(copy));
+	    RARRAY_PTR_USE(copy, ptr, ruby_sized_xfree(ptr, ARY_HEAP_SIZE(copy)));
         }
         else {
             rb_ary_unshare_safe(copy);
         }
         FL_UNSET_EMBED(copy);
-        ARY_SET_PTR(copy, RARRAY_PTR(orig));
+        ARY_SET_PTR(copy, RARRAY_CONST_PTR(orig));
         ARY_SET_LEN(copy, RARRAY_LEN(orig));
         rb_ary_set_shared(copy, shared);
     }
@@ -3268,7 +3534,6 @@ rb_ary_fill(int argc, VALUE *argv, VALUE ary)
 {
     VALUE item, arg1, arg2;
     long beg = 0, end = 0, len = 0;
-    VALUE *p, *pend;
     int block_p = FALSE;
 
     if (rb_block_given_p()) {
@@ -3310,7 +3575,7 @@ rb_ary_fill(int argc, VALUE *argv, VALUE ary)
 	if (end >= ARY_CAPA(ary)) {
 	    ary_resize_capa(ary, end);
 	}
-	rb_mem_clear(RARRAY_PTR(ary) + RARRAY_LEN(ary), end - RARRAY_LEN(ary));
+	ary_mem_clear(ary, RARRAY_LEN(ary), end - RARRAY_LEN(ary));
 	ARY_SET_LEN(ary, end);
     }
 
@@ -3321,15 +3586,11 @@ rb_ary_fill(int argc, VALUE *argv, VALUE ary)
 	for (i=beg; i<end; i++) {
 	    v = rb_yield(LONG2NUM(i));
 	    if (i>=RARRAY_LEN(ary)) break;
-	    RARRAY_PTR(ary)[i] = v;
+	    ARY_SET(ary, i, v);
 	}
     }
     else {
-	p = RARRAY_PTR(ary) + beg;
-	pend = p + len;
-	while (p < pend) {
-	    *p++ = item;
-	}
+	ary_memfill(ary, beg, len, item);
     }
     return ary;
 }
@@ -3343,8 +3604,16 @@ rb_ary_fill(int argc, VALUE *argv, VALUE ary)
  *
  *     [ 1, 2, 3 ] + [ 4, 5 ]    #=> [ 1, 2, 3, 4, 5 ]
  *     a = [ "a", "b", "c" ]
- *     a + [ "d", "e", "f" ]
- *     a                         #=> [ "a", "b", "c", "d", "e", "f" ]
+ *     c = a + [ "d", "e", "f" ]
+ *     c                         #=> [ "a", "b", "c", "d", "e", "f" ]
+ *     a                         #=> [ "a", "b", "c" ]
+ *
+ *  Note that
+ *     x += y
+ *  is the same as
+ *     x = x + y
+ *  This means that it produces a new array. As a consequence,
+ *  repeated use of <code>+=</code> on arrays can be quite inefficient.
  *
  *  See also Array#concat.
  */
@@ -3353,13 +3622,16 @@ VALUE
 rb_ary_plus(VALUE x, VALUE y)
 {
     VALUE z;
-    long len;
+    long len, xlen, ylen;
 
     y = to_ary(y);
-    len = RARRAY_LEN(x) + RARRAY_LEN(y);
+    xlen = RARRAY_LEN(x);
+    ylen = RARRAY_LEN(y);
+    len = xlen + ylen;
     z = rb_ary_new2(len);
-    MEMCPY(RARRAY_PTR(z), RARRAY_PTR(x), VALUE, RARRAY_LEN(x));
-    MEMCPY(RARRAY_PTR(z) + RARRAY_LEN(x), RARRAY_PTR(y), VALUE, RARRAY_LEN(y));
+
+    ary_memcpy(z, 0, xlen, RARRAY_CONST_PTR(x));
+    ary_memcpy(z, xlen, ylen, RARRAY_CONST_PTR(y));
     ARY_SET_LEN(z, len);
     return z;
 }
@@ -3410,7 +3682,8 @@ rb_ary_concat(VALUE x, VALUE y)
 static VALUE
 rb_ary_times(VALUE ary, VALUE times)
 {
-    VALUE ary2, tmp, *ptr, *ptr2;
+    VALUE ary2, tmp;
+    const VALUE *ptr;
     long t, len;
 
     tmp = rb_check_string_type(times);
@@ -3434,17 +3707,16 @@ rb_ary_times(VALUE ary, VALUE times)
     ary2 = ary_new(rb_obj_class(ary), len);
     ARY_SET_LEN(ary2, len);
 
-    ptr = RARRAY_PTR(ary);
-    ptr2 = RARRAY_PTR(ary2);
+    ptr = RARRAY_CONST_PTR(ary);
     t = RARRAY_LEN(ary);
     if (0 < t) {
-        MEMCPY(ptr2, ptr, VALUE, t);
-        while (t <= len/2) {
-            MEMCPY(ptr2+t, ptr2, VALUE, t);
+	ary_memcpy(ary2, 0, t, ptr);
+	while (t <= len/2) {
+	    ary_memcpy(ary2, t, t, RARRAY_CONST_PTR(ary2));
             t *= 2;
         }
         if (t < len) {
-            MEMCPY(ptr2+t, ptr2, VALUE, len-t);
+	    ary_memcpy(ary2, t, len-t, RARRAY_CONST_PTR(ary2));
         }
     }
   out:
@@ -3455,7 +3727,7 @@ rb_ary_times(VALUE ary, VALUE times)
 
 /*
  *  call-seq:
- *     ary.assoc(obj)   -> new_ary  or  nil
+ *     ary.assoc(obj)   -> element_ary  or  nil
  *
  *  Searches through an array whose elements are also arrays comparing +obj+
  *  with the first element of each contained array using <code>obj.==</code>.
@@ -3480,9 +3752,9 @@ rb_ary_assoc(VALUE ary, VALUE key)
     VALUE v;
 
     for (i = 0; i < RARRAY_LEN(ary); ++i) {
-	v = rb_check_array_type(RARRAY_PTR(ary)[i]);
+	v = rb_check_array_type(RARRAY_AREF(ary, i));
 	if (!NIL_P(v) && RARRAY_LEN(v) > 0 &&
-	    rb_equal(RARRAY_PTR(v)[0], key))
+	    rb_equal(RARRAY_AREF(v, 0), key))
 	    return v;
     }
     return Qnil;
@@ -3490,7 +3762,7 @@ rb_ary_assoc(VALUE ary, VALUE key)
 
 /*
  *  call-seq:
- *     ary.rassoc(obj) -> new_ary or nil
+ *     ary.rassoc(obj) -> element_ary or nil
  *
  *  Searches through the array whose elements are also arrays.
  *
@@ -3513,10 +3785,10 @@ rb_ary_rassoc(VALUE ary, VALUE value)
     VALUE v;
 
     for (i = 0; i < RARRAY_LEN(ary); ++i) {
-	v = RARRAY_PTR(ary)[i];
+	v = RARRAY_AREF(ary, i);
 	if (RB_TYPE_P(v, T_ARRAY) &&
 	    RARRAY_LEN(v) > 1 &&
-	    rb_equal(RARRAY_PTR(v)[1], value))
+	    rb_equal(RARRAY_AREF(v, 1), value))
 	    return v;
     }
     return Qnil;
@@ -3526,12 +3798,12 @@ static VALUE
 recursive_equal(VALUE ary1, VALUE ary2, int recur)
 {
     long i, len1;
-    VALUE *p1, *p2;
+    const VALUE *p1, *p2;
 
     if (recur) return Qtrue; /* Subtle! */
 
-    p1 = RARRAY_PTR(ary1);
-    p2 = RARRAY_PTR(ary2);
+    p1 = RARRAY_CONST_PTR(ary1);
+    p2 = RARRAY_CONST_PTR(ary2);
     len1 = RARRAY_LEN(ary1);
 
     for (i = 0; i < len1; i++) {
@@ -3542,8 +3814,8 @@ recursive_equal(VALUE ary1, VALUE ary2, int recur)
 		    return Qfalse;
 		if (len1 < i)
 		    return Qtrue;
-		p1 = RARRAY_PTR(ary1) + i;
-		p2 = RARRAY_PTR(ary2) + i;
+		p1 = RARRAY_CONST_PTR(ary1) + i;
+		p2 = RARRAY_CONST_PTR(ary2) + i;
 	    }
 	    else {
 		return Qfalse;
@@ -3574,12 +3846,13 @@ rb_ary_equal(VALUE ary1, VALUE ary2)
 {
     if (ary1 == ary2) return Qtrue;
     if (!RB_TYPE_P(ary2, T_ARRAY)) {
-	if (!rb_respond_to(ary2, rb_intern("to_ary"))) {
+	if (!rb_respond_to(ary2, idTo_ary)) {
 	    return Qfalse;
 	}
 	return rb_equal(ary2, ary1);
     }
     if (RARRAY_LEN(ary1) != RARRAY_LEN(ary2)) return Qfalse;
+    if (RARRAY_CONST_PTR(ary1) == RARRAY_CONST_PTR(ary2)) return Qtrue;
     return rb_exec_recursive_paired(recursive_equal, ary1, ary2, ary2);
 }
 
@@ -3610,30 +3883,10 @@ rb_ary_eql(VALUE ary1, VALUE ary2)
     if (ary1 == ary2) return Qtrue;
     if (!RB_TYPE_P(ary2, T_ARRAY)) return Qfalse;
     if (RARRAY_LEN(ary1) != RARRAY_LEN(ary2)) return Qfalse;
+    if (RARRAY_CONST_PTR(ary1) == RARRAY_CONST_PTR(ary2)) return Qtrue;
     return rb_exec_recursive_paired(recursive_eql, ary1, ary2, ary2);
 }
 
-static VALUE
-recursive_hash(VALUE ary, VALUE dummy, int recur)
-{
-    long i;
-    st_index_t h;
-    VALUE n;
-
-    h = rb_hash_start(RARRAY_LEN(ary));
-    if (recur) {
-	h = rb_hash_uint(h, NUM2LONG(rb_hash(rb_cArray)));
-    }
-    else {
-	for (i=0; i<RARRAY_LEN(ary); i++) {
-	    n = rb_hash(RARRAY_PTR(ary)[i]);
-	    h = rb_hash_uint(h, NUM2LONG(n));
-	}
-    }
-    h = rb_hash_end(h);
-    return LONG2FIX(h);
-}
-
 /*
  *  call-seq:
  *     ary.hash   -> fixnum
@@ -3642,12 +3895,25 @@ recursive_hash(VALUE ary, VALUE dummy, int recur)
  *
  *  Two arrays with the same content will have the same hash code (and will
  *  compare using #eql?).
+ *
+ *  See also Object#hash.
  */
 
 static VALUE
 rb_ary_hash(VALUE ary)
 {
-    return rb_exec_recursive_outer(recursive_hash, ary, 0);
+    long i;
+    st_index_t h;
+    VALUE n;
+
+    h = rb_hash_start(RARRAY_LEN(ary));
+    h = rb_hash_uint(h, (st_index_t)rb_ary_hash);
+    for (i=0; i<RARRAY_LEN(ary); i++) {
+	n = rb_hash(RARRAY_AREF(ary, i));
+	h = rb_hash_uint(h, NUM2LONG(n));
+    }
+    h = rb_hash_end(h);
+    return LONG2FIX(h);
 }
 
 /*
@@ -3666,9 +3932,15 @@ VALUE
 rb_ary_includes(VALUE ary, VALUE item)
 {
     long i;
+    VALUE e;
 
     for (i=0; i<RARRAY_LEN(ary); i++) {
-	if (rb_equal(RARRAY_PTR(ary)[i], item)) {
+	e = RARRAY_AREF(ary, i);
+	switch (rb_equal_opt(e, item)) {
+	  case Qundef:
+	    if (rb_equal(e, item)) return Qtrue;
+	    break;
+	  case Qtrue:
 	    return Qtrue;
 	}
     }
@@ -3687,7 +3959,8 @@ recursive_cmp(VALUE ary1, VALUE ary2, int recur)
 	len = RARRAY_LEN(ary2);
     }
     for (i=0; i<len; i++) {
-	VALUE v = rb_funcall(rb_ary_elt(ary1, i), id_cmp, 1, rb_ary_elt(ary2, i));
+	VALUE e1 = rb_ary_elt(ary1, i), e2 = rb_ary_elt(ary2, i);
+	VALUE v = rb_funcallv(e1, id_cmp, 1, &e2);
 	if (v != INT2FIX(0)) {
 	    return v;
 	}
@@ -3702,21 +3975,26 @@ recursive_cmp(VALUE ary1, VALUE ary2, int recur)
  *  Comparison --- Returns an integer (+-1+, +0+, or <code>+1</code>) if this
  *  array is less than, equal to, or greater than +other_ary+.
  *
- *  +nil+ is returned if the two values are incomparable.
- *
  *  Each object in each array is compared (using the <=> operator).
  *
- *  Arrays are compared in an "element-wise" manner; the first two elements
- *  that are not equal will determine the return value for the whole
- *  comparison.
+ *  Arrays are compared in an "element-wise" manner; the first element of +ary+
+ *  is compared with the first one of +other_ary+ using the <=> operator, then
+ *  each of the second elements, etc...
+ *  As soon as the result of any such comparison is non zero (i.e. the two
+ *  corresponding elements are not equal), that result is returned for the
+ *  whole array comparison.
  *
- *  If all the values are equal, then the return is based on a comparison of
+ *  If all the elements are equal, then the result is based on a comparison of
  *  the array lengths. Thus, two arrays are "equal" according to Array#<=> if,
  *  and only if, they have the same length and the value of each element is
  *  equal to the value of the corresponding element in the other array.
  *
+ *  +nil+ is returned if the +other_ary+ is not an array or if the comparison
+ *  of two elements returned +nil+.
+ *
  *     [ "a", "a", "c" ]    <=> [ "a", "b", "c" ]   #=> -1
  *     [ 1, 2, 3, 4, 5, 6 ] <=> [ 1, 2 ]            #=> +1
+ *     [ 1, 2 ]             <=> [ 1, :two ]         #=> nil
  *
  */
 
@@ -3743,7 +4021,10 @@ ary_add_hash(VALUE hash, VALUE ary)
     long i;
 
     for (i=0; i<RARRAY_LEN(ary); i++) {
-	rb_hash_aset(hash, RARRAY_PTR(ary)[i], Qtrue);
+	VALUE elt = RARRAY_AREF(ary, i);
+	if (rb_hash_lookup2(hash, elt, Qundef) == Qundef) {
+	    rb_hash_aset(hash, elt, elt);
+	}
     }
     return hash;
 }
@@ -3753,7 +4034,7 @@ ary_tmp_hash_new(void)
 {
     VALUE hash = rb_hash_new();
 
-    RBASIC(hash)->klass = 0;
+    RBASIC_CLEAR_CLASS(hash);
     return hash;
 }
 
@@ -3793,6 +4074,7 @@ ary_recycle_hash(VALUE hash)
 	RHASH(hash)->ntbl = 0;
 	st_free_table(tbl);
     }
+    RB_GC_GUARD(hash);
 }
 
 /*
@@ -3816,14 +4098,14 @@ static VALUE
 rb_ary_diff(VALUE ary1, VALUE ary2)
 {
     VALUE ary3;
-    volatile VALUE hash;
+    VALUE hash;
     long i;
 
     hash = ary_make_hash(to_ary(ary2));
     ary3 = rb_ary_new();
 
     for (i=0; i<RARRAY_LEN(ary1); i++) {
-	if (st_lookup(RHASH_TBL(hash), RARRAY_PTR(ary1)[i], 0)) continue;
+	if (st_lookup(rb_hash_tbl_raw(hash), RARRAY_AREF(ary1, i), 0)) continue;
 	rb_ary_push(ary3, rb_ary_elt(ary1, i));
     }
     ary_recycle_hash(hash);
@@ -3851,20 +4133,20 @@ static VALUE
 rb_ary_and(VALUE ary1, VALUE ary2)
 {
     VALUE hash, ary3, v;
+    st_table *table;
     st_data_t vv;
     long i;
 
     ary2 = to_ary(ary2);
-    ary3 = rb_ary_new2(RARRAY_LEN(ary1) < RARRAY_LEN(ary2) ?
-	    RARRAY_LEN(ary1) : RARRAY_LEN(ary2));
+    ary3 = rb_ary_new();
+    if (RARRAY_LEN(ary2) == 0) return ary3;
     hash = ary_make_hash(ary2);
-
-    if (RHASH_EMPTY_P(hash))
-        return ary3;
+    table = rb_hash_tbl_raw(hash);
 
     for (i=0; i<RARRAY_LEN(ary1); i++) {
-	vv = (st_data_t)(v = rb_ary_elt(ary1, i));
-	if (st_delete(RHASH_TBL(hash), &vv, 0)) {
+	v = RARRAY_AREF(ary1, i);
+	vv = (st_data_t)v;
+	if (st_delete(table, &vv, 0)) {
 	    rb_ary_push(ary3, v);
 	}
     }
@@ -3873,6 +4155,14 @@ rb_ary_and(VALUE ary1, VALUE ary2)
     return ary3;
 }
 
+static int
+ary_hash_orset(st_data_t *key, st_data_t *value, st_data_t arg, int existing)
+{
+    if (existing) return ST_STOP;
+    *key = *value = (VALUE)arg;
+    return ST_CONTINUE;
+}
+
 /*
  *  call-seq:
  *     ary | other_ary     -> new_ary
@@ -3890,26 +4180,19 @@ rb_ary_and(VALUE ary1, VALUE ary2)
 static VALUE
 rb_ary_or(VALUE ary1, VALUE ary2)
 {
-    VALUE hash, ary3, v;
-    st_data_t vv;
+    VALUE hash, ary3;
     long i;
 
     ary2 = to_ary(ary2);
-    ary3 = rb_ary_new2(RARRAY_LEN(ary1)+RARRAY_LEN(ary2));
-    hash = ary_add_hash(ary_make_hash(ary1), ary2);
+    hash = ary_make_hash(ary1);
 
-    for (i=0; i<RARRAY_LEN(ary1); i++) {
-	vv = (st_data_t)(v = rb_ary_elt(ary1, i));
-	if (st_delete(RHASH_TBL(hash), &vv, 0)) {
-	    rb_ary_push(ary3, v);
-	}
-    }
     for (i=0; i<RARRAY_LEN(ary2); i++) {
-	vv = (st_data_t)(v = rb_ary_elt(ary2, i));
-	if (st_delete(RHASH_TBL(hash), &vv, 0)) {
-	    rb_ary_push(ary3, v);
+	VALUE elt = RARRAY_AREF(ary2, i);
+	if (!st_update(RHASH_TBL_RAW(hash), (st_data_t)elt, ary_hash_orset, (st_data_t)elt)) {
+	    RB_OBJ_WRITTEN(hash, Qundef, elt);
 	}
     }
+    ary3 = rb_hash_values(hash);
     ary_recycle_hash(hash);
     return ary3;
 }
@@ -3933,6 +4216,8 @@ push_value(st_data_t key, st_data_t val, st_data_t ary)
  *
  *  It compares values using their #hash and #eql? methods for efficiency.
  *
+ *  +self+ is traversed in order, and the first occurrence is kept.
+ *
  *  Returns +nil+ if no changes are made (that is, no duplicates are found).
  *
  *     a = [ "a", "a", "b", "b", "c" ]
@@ -3949,38 +4234,29 @@ push_value(st_data_t key, st_data_t val, st_data_t ary)
 static VALUE
 rb_ary_uniq_bang(VALUE ary)
 {
-    VALUE hash, v;
-    long i, j;
+    VALUE hash;
+    long hash_size;
 
     rb_ary_modify_check(ary);
     if (RARRAY_LEN(ary) <= 1)
         return Qnil;
-    if (rb_block_given_p()) {
+    if (rb_block_given_p())
 	hash = ary_make_hash_by(ary);
-	if (RARRAY_LEN(ary) == (i = RHASH_SIZE(hash))) {
-	    return Qnil;
-	}
-	ARY_SET_LEN(ary, 0);
-	if (ARY_SHARED_P(ary) && !ARY_EMBED_P(ary)) {
-	    rb_ary_unshare(ary);
-	    FL_SET_EMBED(ary);
-	}
-	ary_resize_capa(ary, i);
-	st_foreach(RHASH_TBL(hash), push_value, ary);
-    }
-    else {
+    else
 	hash = ary_make_hash(ary);
-	if (RARRAY_LEN(ary) == (long)RHASH_SIZE(hash)) {
-	    return Qnil;
-	}
-	for (i=j=0; i<RARRAY_LEN(ary); i++) {
-	    st_data_t vv = (st_data_t)(v = rb_ary_elt(ary, i));
-	    if (st_delete(RHASH_TBL(hash), &vv, 0)) {
-		rb_ary_store(ary, j++, v);
-	    }
-	}
-	ARY_SET_LEN(ary, j);
+
+    hash_size = RHASH_SIZE(hash);
+    if (RARRAY_LEN(ary) == hash_size) {
+	return Qnil;
+    }
+    rb_ary_modify_check(ary);
+    ARY_SET_LEN(ary, 0);
+    if (ARY_SHARED_P(ary) && !ARY_EMBED_P(ary)) {
+	rb_ary_unshare(ary);
+	FL_SET_EMBED(ary);
     }
+    ary_resize_capa(ary, hash_size);
+    st_foreach(rb_hash_tbl_raw(hash), push_value, ary);
     ary_recycle_hash(hash);
 
     return ary;
@@ -3997,6 +4273,8 @@ rb_ary_uniq_bang(VALUE ary)
  *
  *  It compares values using their #hash and #eql? methods for efficiency.
  *
+ *  +self+ is traversed in order, and the first occurrence is kept.
+ *
  *     a = [ "a", "a", "b", "b", "c" ]
  *     a.uniq   # => ["a", "b", "c"]
  *
@@ -4008,26 +4286,19 @@ rb_ary_uniq_bang(VALUE ary)
 static VALUE
 rb_ary_uniq(VALUE ary)
 {
-    VALUE hash, uniq, v;
-    long i;
+    VALUE hash, uniq;
 
     if (RARRAY_LEN(ary) <= 1)
         return rb_ary_dup(ary);
     if (rb_block_given_p()) {
 	hash = ary_make_hash_by(ary);
-	uniq = ary_new(rb_obj_class(ary), RHASH_SIZE(hash));
-	st_foreach(RHASH_TBL(hash), push_value, uniq);
+	uniq = rb_hash_values(hash);
     }
     else {
 	hash = ary_make_hash(ary);
-	uniq = ary_new(rb_obj_class(ary), RHASH_SIZE(hash));
-	for (i=0; i<RARRAY_LEN(ary); i++) {
-	    st_data_t vv = (st_data_t)(v = rb_ary_elt(ary, i));
-	    if (st_delete(RHASH_TBL(hash), &vv, 0)) {
-		rb_ary_push(uniq, v);
-	    }
-	}
+	uniq = rb_hash_values(hash);
     }
+    RBASIC_SET_CLASS(uniq, rb_obj_class(ary));
     ary_recycle_hash(hash);
 
     return uniq;
@@ -4052,21 +4323,18 @@ rb_ary_compact_bang(VALUE ary)
     long n;
 
     rb_ary_modify(ary);
-    p = t = RARRAY_PTR(ary);
+    p = t = (VALUE *)RARRAY_CONST_PTR(ary); /* WB: no new reference */
     end = p + RARRAY_LEN(ary);
 
     while (t < end) {
 	if (NIL_P(*t)) t++;
 	else *p++ = *t++;
     }
-    n = p - RARRAY_PTR(ary);
+    n = p - RARRAY_CONST_PTR(ary);
     if (RARRAY_LEN(ary) == n) {
 	return Qnil;
     }
-    ARY_SET_LEN(ary, n);
-    if (n * 2 < ARY_CAPA(ary) && ARY_DEFAULT_SIZE * 2 < ARY_CAPA(ary)) {
-	ary_resize_capa(ary, n * 2);
-    }
+    ary_resize_smaller(ary, n);
 
     return ary;
 }
@@ -4098,7 +4366,7 @@ rb_ary_compact(VALUE ary)
  *  Returns the number of elements.
  *
  *  If an argument is given, counts the number of elements which equal +obj+
- *  using <code>===</code>.
+ *  using <code>==</code>.
  *
  *  If a block is given, counts the number of elements for which the block
  *  returns a true value.
@@ -4113,27 +4381,28 @@ rb_ary_compact(VALUE ary)
 static VALUE
 rb_ary_count(int argc, VALUE *argv, VALUE ary)
 {
-    long n = 0;
+    long i, n = 0;
 
     if (argc == 0) {
-	VALUE *p, *pend;
+	VALUE v;
 
 	if (!rb_block_given_p())
 	    return LONG2NUM(RARRAY_LEN(ary));
 
-	for (p = RARRAY_PTR(ary), pend = p + RARRAY_LEN(ary); p < pend; p++) {
-	    if (RTEST(rb_yield(*p))) n++;
+	for (i = 0; i < RARRAY_LEN(ary); i++) {
+	    v = RARRAY_AREF(ary, i);
+	    if (RTEST(rb_yield(v))) n++;
 	}
     }
     else {
-	VALUE obj, *p, *pend;
+	VALUE obj;
 
 	rb_scan_args(argc, argv, "1", &obj);
 	if (rb_block_given_p()) {
 	    rb_warn("given block not used");
 	}
-	for (p = RARRAY_PTR(ary), pend = p + RARRAY_LEN(ary); p < pend; p++) {
-	    if (rb_equal(*p, obj)) n++;
+	for (i = 0; i < RARRAY_LEN(ary); i++) {
+	    if (rb_equal(RARRAY_AREF(ary, i), obj)) n++;
 	}
     }
 
@@ -4156,12 +4425,16 @@ flatten(VALUE ary, int level, int *modified)
 
     while (1) {
 	while (i < RARRAY_LEN(ary)) {
-	    elt = RARRAY_PTR(ary)[i++];
+	    elt = RARRAY_AREF(ary, i++);
+	    if (level >= 0 && RARRAY_LEN(stack) / 2 >= level) {
+		rb_ary_push(result, elt);
+		continue;
+	    }
 	    tmp = rb_check_array_type(elt);
 	    if (RBASIC(result)->klass) {
 		rb_raise(rb_eRuntimeError, "flatten reentered");
 	    }
-	    if (NIL_P(tmp) || (level >= 0 && RARRAY_LEN(stack) / 2 >= level)) {
+	    if (NIL_P(tmp)) {
 		rb_ary_push(result, elt);
 	    }
 	    else {
@@ -4190,7 +4463,7 @@ flatten(VALUE ary, int level, int *modified)
 
     st_free_table(memo);
 
-    RBASIC(result)->klass = rb_class_of(ary);
+    RBASIC_SET_CLASS(result, rb_obj_class(ary));
     return result;
 }
 
@@ -4277,7 +4550,7 @@ rb_ary_flatten(int argc, VALUE *argv, VALUE ary)
 
 #define OPTHASH_GIVEN_P(opts) \
     (argc > 0 && !NIL_P((opts) = rb_check_hash_type(argv[argc-1])) && (--argc, 1))
-static VALUE sym_random;
+static ID id_random;
 
 #define RAND_UPTO(max) (long)rb_random_ulong_limited((randgen), (max)-1)
 
@@ -4288,34 +4561,46 @@ static VALUE sym_random;
  *
  *  Shuffles elements in +self+ in place.
  *
+ *     a = [ 1, 2, 3 ]           #=> [1, 2, 3]
+ *     a.shuffle!                #=> [2, 3, 1]
+ *     a                         #=> [2, 3, 1]
+ *
  *  The optional +rng+ argument will be used as the random number generator.
+ *
+ *     a.shuffle!(random: Random.new(1))  #=> [1, 3, 2]
  */
 
 static VALUE
 rb_ary_shuffle_bang(int argc, VALUE *argv, VALUE ary)
 {
-    VALUE *ptr, opts, *snap_ptr, randgen = rb_cRandom;
-    long i, snap_len;
+    VALUE opts, randgen = rb_cRandom;
+    long i, len;
 
     if (OPTHASH_GIVEN_P(opts)) {
-	randgen = rb_hash_lookup2(opts, sym_random, randgen);
+	VALUE rnd;
+	ID keyword_ids[1];
+
+	keyword_ids[0] = id_random;
+	rb_get_kwargs(opts, keyword_ids, 0, 1, &rnd);
+	if (rnd != Qundef) {
+	    randgen = rnd;
+	}
     }
     rb_check_arity(argc, 0, 0);
     rb_ary_modify(ary);
-    i = RARRAY_LEN(ary);
-    ptr = RARRAY_PTR(ary);
-    snap_len = i;
-    snap_ptr = ptr;
-    while (i) {
-	long j = RAND_UPTO(i);
-	VALUE tmp;
-	if (snap_len != RARRAY_LEN(ary) || snap_ptr != RARRAY_PTR(ary)) {
-	    rb_raise(rb_eRuntimeError, "modified during shuffle");
+    i = len = RARRAY_LEN(ary);
+    RARRAY_PTR_USE(ary, ptr, {
+	while (i) {
+	    long j = RAND_UPTO(i);
+	    VALUE tmp;
+	    if (len != RARRAY_LEN(ary) || ptr != RARRAY_CONST_PTR(ary)) {
+		rb_raise(rb_eRuntimeError, "modified during shuffle");
+	    }
+	    tmp = ptr[--i];
+	    ptr[i] = ptr[j];
+	    ptr[j] = tmp;
 	}
-	tmp = ptr[--i];
-	ptr[i] = ptr[j];
-	ptr[j] = tmp;
-    }
+    }); /* WB: no new reference */
     return ary;
 }
 
@@ -4329,6 +4614,7 @@ rb_ary_shuffle_bang(int argc, VALUE *argv, VALUE ary)
  *
  *     a = [ 1, 2, 3 ]           #=> [1, 2, 3]
  *     a.shuffle                 #=> [2, 3, 1]
+ *     a                         #=> [1, 2, 3]
  *
  *  The optional +rng+ argument will be used as the random number generator.
  *
@@ -4371,27 +4657,29 @@ rb_ary_shuffle(int argc, VALUE *argv, VALUE ary)
 static VALUE
 rb_ary_sample(int argc, VALUE *argv, VALUE ary)
 {
-    VALUE nv, result, *ptr;
+    VALUE nv, result;
     VALUE opts, randgen = rb_cRandom;
     long n, len, i, j, k, idx[10];
     long rnds[numberof(idx)];
 
     if (OPTHASH_GIVEN_P(opts)) {
-	randgen = rb_hash_lookup2(opts, sym_random, randgen);
+	VALUE rnd;
+	ID keyword_ids[1];
+
+	keyword_ids[0] = id_random;
+	rb_get_kwargs(opts, keyword_ids, 0, 1, &rnd);
+	if (rnd != Qundef) {
+	    randgen = rnd;
+	}
     }
-    ptr = RARRAY_PTR(ary);
     len = RARRAY_LEN(ary);
     if (argc == 0) {
-	if (len == 0) return Qnil;
-	if (len == 1) {
+	if (len < 2)
 	    i = 0;
-	}
-	else {
+	else
 	    i = RAND_UPTO(len);
-	    if ((len = RARRAY_LEN(ary)) <= i) return Qnil;
-	    ptr = RARRAY_PTR(ary);
-	}
-	return ptr[i];
+
+	return rb_ary_elt(ary, i);
     }
     rb_scan_args(argc, argv, "1", &nv);
     n = NUM2LONG(nv);
@@ -4404,28 +4692,23 @@ rb_ary_sample(int argc, VALUE *argv, VALUE ary)
     }
     k = len;
     len = RARRAY_LEN(ary);
-    ptr = RARRAY_PTR(ary);
-    if (len < k) {
-	if (n <= numberof(idx)) {
-	    for (i = 0; i < n; ++i) {
-		if (rnds[i] >= len) {
-		    return rb_ary_new2(0);
-		}
-	    }
+    if (len < k && n <= numberof(idx)) {
+	for (i = 0; i < n; ++i) {
+	    if (rnds[i] >= len) return rb_ary_new_capa(0);
 	}
     }
     if (n > len) n = len;
     switch (n) {
       case 0:
-	return rb_ary_new2(0);
+	return rb_ary_new_capa(0);
       case 1:
 	i = rnds[0];
-	return rb_ary_new4(1, &ptr[i]);
+	return rb_ary_new_from_values(1, &RARRAY_AREF(ary, i));
       case 2:
 	i = rnds[0];
 	j = rnds[1];
 	if (j >= i) j++;
-	return rb_ary_new3(2, ptr[i], ptr[j]);
+	return rb_ary_new_from_args(2, RARRAY_AREF(ary, i), RARRAY_AREF(ary, j));
       case 3:
 	i = rnds[0];
 	j = rnds[1];
@@ -4435,10 +4718,9 @@ rb_ary_sample(int argc, VALUE *argv, VALUE ary)
 	    if (j >= i) l = i, g = ++j;
 	    if (k >= l && (++k >= g)) ++k;
 	}
-	return rb_ary_new3(3, ptr[i], ptr[j], ptr[k]);
+	return rb_ary_new_from_args(3, RARRAY_AREF(ary, i), RARRAY_AREF(ary, j), RARRAY_AREF(ary, k));
     }
     if (n <= numberof(idx)) {
-	VALUE *ptr_result;
 	long sorted[numberof(idx)];
 	sorted[0] = idx[0] = rnds[0];
 	for (i=1; i<n; i++) {
@@ -4450,25 +4732,26 @@ rb_ary_sample(int argc, VALUE *argv, VALUE ary)
 	    memmove(&sorted[j+1], &sorted[j], sizeof(sorted[0])*(i-j));
 	    sorted[j] = idx[i] = k;
 	}
-	result = rb_ary_new2(n);
-	ptr_result = RARRAY_PTR(result);
-	for (i=0; i<n; i++) {
-	    ptr_result[i] = ptr[idx[i]];
-	}
+	result = rb_ary_new_capa(n);
+	RARRAY_PTR_USE(result, ptr_result, {
+	    for (i=0; i<n; i++) {
+		ptr_result[i] = RARRAY_AREF(ary, idx[i]);
+	    }
+	});
     }
     else {
-	VALUE *ptr_result;
-	result = rb_ary_new4(len, ptr);
-	RBASIC(result)->klass = 0;
-	ptr_result = RARRAY_PTR(result);
+	result = rb_ary_dup(ary);
+	RBASIC_CLEAR_CLASS(result);
 	RB_GC_GUARD(ary);
-	for (i=0; i<n; i++) {
-	    j = RAND_UPTO(len-i) + i;
-	    nv = ptr_result[j];
-	    ptr_result[j] = ptr_result[i];
-	    ptr_result[i] = nv;
-	}
-	RBASIC(result)->klass = rb_cArray;
+	RARRAY_PTR_USE(result, ptr_result, {
+	    for (i=0; i<n; i++) {
+		j = RAND_UPTO(len-i) + i;
+		nv = ptr_result[j];
+		ptr_result[j] = ptr_result[i];
+		ptr_result[i] = nv;
+	    }
+	});
+	RBASIC_SET_CLASS_RAW(result, rb_cArray);
     }
     ARY_SET_LEN(result, n);
 
@@ -4476,18 +4759,19 @@ rb_ary_sample(int argc, VALUE *argv, VALUE ary)
 }
 
 static VALUE
-rb_ary_cycle_size(VALUE self, VALUE args)
+rb_ary_cycle_size(VALUE self, VALUE args, VALUE eobj)
 {
     long mul;
     VALUE n = Qnil;
     if (args && (RARRAY_LEN(args) > 0)) {
-	n = RARRAY_PTR(args)[0];
+	n = RARRAY_AREF(args, 0);
     }
     if (RARRAY_LEN(self) == 0) return INT2FIX(0);
     if (n == Qnil) return DBL2NUM(INFINITY);
     mul = NUM2LONG(n);
     if (mul <= 0) return INT2FIX(0);
-    return rb_funcall(rb_ary_length(self), '*', 1, LONG2FIX(mul));
+    n = LONG2FIX(mul);
+    return rb_funcallv(rb_ary_length(self), '*', 1, &n);
 }
 
 /*
@@ -4529,20 +4813,38 @@ rb_ary_cycle(int argc, VALUE *argv, VALUE ary)
 
     while (RARRAY_LEN(ary) > 0 && (n < 0 || 0 < n--)) {
         for (i=0; i<RARRAY_LEN(ary); i++) {
-            rb_yield(RARRAY_PTR(ary)[i]);
+            rb_yield(RARRAY_AREF(ary, i));
         }
     }
     return Qnil;
 }
 
 #define tmpbuf(n, size) rb_str_tmp_new((n)*(size))
-#define tmpbuf_discard(s) (rb_str_resize((s), 0L), RBASIC(s)->klass = rb_cString)
+#define tmpbuf_discard(s) (rb_str_resize((s), 0L), RBASIC_SET_CLASS_RAW(s, rb_cString))
 #define tmpary(n) rb_ary_tmp_new(n)
-#define tmpary_discard(a) (ary_discard(a), RBASIC(a)->klass = rb_cArray)
+#define tmpary_discard(a) (ary_discard(a), RBASIC_SET_CLASS_RAW(a, rb_cArray))
 
 /*
- * Recursively compute permutations of +r+ elements of the set
- * <code>[0..n-1]</code>.
+ * Build a ruby array of the corresponding values and yield it to the
+ * associated block.
+ * Return the class of +values+ for reentry check.
+ */
+static int
+yield_indexed_values(const VALUE values, const long r, const long *const p)
+{
+    const VALUE result = rb_ary_new2(r);
+    VALUE *const result_array = RARRAY_PTR(result);
+    const VALUE *const values_array = RARRAY_CONST_PTR(values);
+    long i;
+
+    for (i = 0; i < r; i++) result_array[i] = values_array[p[i]];
+    ARY_SET_LEN(result, r);
+    rb_yield(result);
+    return !RBASIC(values)->klass;
+}
+
+/*
+ * Compute permutations of +r+ elements of the set <code>[0..n-1]</code>.
  *
  * When we have a complete permutation of array indexes, copy the values
  * at those indexes into a new array and yield that array.
@@ -4550,38 +4852,40 @@ rb_ary_cycle(int argc, VALUE *argv, VALUE ary)
  * n: the size of the set
  * r: the number of elements in each permutation
  * p: the array (of size r) that we're filling in
- * index: what index we're filling in now
  * used: an array of booleans: whether a given index is already used
  * values: the Ruby array that holds the actual values to permute
  */
 static void
-permute0(long n, long r, long *p, long index, char *used, VALUE values)
+permute0(const long n, const long r, long *const p, char *const used, const VALUE values)
 {
-    long i,j;
-    for (i = 0; i < n; i++) {
-	if (used[i] == 0) {
+    long i = 0, index = 0;
+
+    for (;;) {
+	const char *const unused = memchr(&used[i], 0, n-i);
+	if (!unused) {
+	    if (!index) break;
+	    i = p[--index];                /* pop index */
+	    used[i++] = 0;                 /* index unused */
+	}
+	else {
+	    i = unused - used;
 	    p[index] = i;
+	    used[i] = 1;                   /* mark index used */
+	    ++index;
 	    if (index < r-1) {             /* if not done yet */
-		used[i] = 1;               /* mark index used */
-		permute0(n, r, p, index+1, /* recurse */
-			 used, values);
-		used[i] = 0;               /* index unused */
+		p[index] = i = 0;
+		continue;
 	    }
-	    else {
-		/* We have a complete permutation of array indexes */
-		/* Build a ruby array of the corresponding values */
-		/* And yield it to the associated block */
-		VALUE result = rb_ary_new2(r);
-		VALUE *result_array = RARRAY_PTR(result);
-		const VALUE *values_array = RARRAY_PTR(values);
-
-		for (j = 0; j < r; j++) result_array[j] = values_array[p[j]];
-		ARY_SET_LEN(result, r);
-		rb_yield(result);
-		if (RBASIC(values)->klass) {
+	    for (i = 0; i < n; ++i) {
+		if (used[i]) continue;
+		p[index] = i;
+		if (!yield_indexed_values(values, r, p)) {
 		    rb_raise(rb_eRuntimeError, "permute reentered");
 		}
 	    }
+	    i = p[--index];                /* pop index */
+	    used[i] = 0;                   /* index unused */
+	    p[index] = ++i;
 	}
     }
 }
@@ -4595,7 +4899,8 @@ descending_factorial(long from, long how_many)
 {
     VALUE cnt = LONG2FIX(how_many >= 0);
     while (how_many-- > 0) {
-        cnt = rb_funcall(cnt, '*', 1, LONG2FIX(from--));
+	VALUE v = LONG2FIX(from--);
+	cnt = rb_funcallv(cnt, '*', 1, &v);
     }
     return cnt;
 }
@@ -4603,20 +4908,23 @@ descending_factorial(long from, long how_many)
 static VALUE
 binomial_coefficient(long comb, long size)
 {
+    VALUE r, v;
     if (comb > size-comb) {
 	comb = size-comb;
     }
     if (comb < 0) {
 	return LONG2FIX(0);
     }
-    return rb_funcall(descending_factorial(size, comb), id_div, 1, descending_factorial(comb, comb));
+    r = descending_factorial(size, comb);
+    v = descending_factorial(comb, comb);
+    return rb_funcallv(r, id_div, 1, &v);
 }
 
 static VALUE
-rb_ary_permutation_size(VALUE ary, VALUE args)
+rb_ary_permutation_size(VALUE ary, VALUE args, VALUE eobj)
 {
     long n = RARRAY_LEN(ary);
-    long k = (args && (RARRAY_LEN(args) > 0)) ? NUM2LONG(RARRAY_PTR(args)[0]) : n;
+    long k = (args && (RARRAY_LEN(args) > 0)) ? NUM2LONG(RARRAY_AREF(args, 0)) : n;
 
     return descending_factorial(n, k);
 }
@@ -4668,32 +4976,51 @@ rb_ary_permutation(int argc, VALUE *argv, VALUE ary)
     }
     else if (r == 1) { /* this is a special, easy case */
 	for (i = 0; i < RARRAY_LEN(ary); i++) {
-	    rb_yield(rb_ary_new3(1, RARRAY_PTR(ary)[i]));
+	    rb_yield(rb_ary_new3(1, RARRAY_AREF(ary, i)));
 	}
     }
     else {             /* this is the general case */
-	volatile VALUE t0 = tmpbuf(n,sizeof(long));
-	long *p = (long*)RSTRING_PTR(t0);
-	volatile VALUE t1 = tmpbuf(n,sizeof(char));
-	char *used = (char*)RSTRING_PTR(t1);
+	volatile VALUE t0;
+	long *p = ALLOCV_N(long, t0, r+roomof(n, sizeof(long)));
+	char *used = (char*)(p + r);
 	VALUE ary0 = ary_make_shared_copy(ary); /* private defensive copy of ary */
-	RBASIC(ary0)->klass = 0;
+	RBASIC_CLEAR_CLASS(ary0);
 
 	MEMZERO(used, char, n); /* initialize array */
 
-	permute0(n, r, p, 0, used, ary0); /* compute and yield permutations */
-	tmpbuf_discard(t0);
-	tmpbuf_discard(t1);
-	RBASIC(ary0)->klass = rb_cArray;
+	permute0(n, r, p, used, ary0); /* compute and yield permutations */
+	ALLOCV_END(t0);
+	RBASIC_SET_CLASS_RAW(ary0, rb_cArray);
     }
     return ary;
 }
 
+static void
+combinate0(const long len, const long n, long *const stack, const VALUE values)
+{
+    long lev = 0;
+
+    MEMZERO(stack+1, long, n);
+    stack[0] = -1;
+    for (;;) {
+	for (lev++; lev < n; lev++) {
+	    stack[lev+1] = stack[lev]+1;
+	}
+	if (!yield_indexed_values(values, n, stack+1)) {
+	    rb_raise(rb_eRuntimeError, "combination reentered");
+	}
+	do {
+	    if (lev == 0) return;
+	    stack[lev--]++;
+	} while (stack[lev+1]+n == len+lev+1);
+    }
+}
+
 static VALUE
-rb_ary_combination_size(VALUE ary, VALUE args)
+rb_ary_combination_size(VALUE ary, VALUE args, VALUE eobj)
 {
     long n = RARRAY_LEN(ary);
-    long k = NUM2LONG(RARRAY_PTR(args)[0]);
+    long k = NUM2LONG(RARRAY_AREF(args, 0));
 
     return binomial_coefficient(k, n);
 }
@@ -4726,7 +5053,7 @@ rb_ary_combination_size(VALUE ary, VALUE args)
 static VALUE
 rb_ary_combination(VALUE ary, VALUE num)
 {
-    long n, i, len;
+    long i, n, len;
 
     n = NUM2LONG(num);
     RETURN_SIZED_ENUMERATOR(ary, 1, &num, rb_ary_combination_size);
@@ -4738,42 +5065,25 @@ rb_ary_combination(VALUE ary, VALUE num)
 	rb_yield(rb_ary_new2(0));
     }
     else if (n == 1) {
-	for (i = 0; i < len; i++) {
-	    rb_yield(rb_ary_new3(1, RARRAY_PTR(ary)[i]));
+	for (i = 0; i < RARRAY_LEN(ary); i++) {
+	    rb_yield(rb_ary_new3(1, RARRAY_AREF(ary, i)));
 	}
     }
     else {
-	volatile VALUE t0 = tmpbuf(n+1, sizeof(long));
-	long *stack = (long*)RSTRING_PTR(t0);
-	volatile VALUE cc = tmpary(n);
-	VALUE *chosen = RARRAY_PTR(cc);
-	long lev = 0;
-
-	MEMZERO(stack, long, n);
-	stack[0] = -1;
-	for (;;) {
-	    chosen[lev] = RARRAY_PTR(ary)[stack[lev+1]];
-	    for (lev++; lev < n; lev++) {
-		chosen[lev] = RARRAY_PTR(ary)[stack[lev+1] = stack[lev]+1];
-	    }
-	    rb_yield(rb_ary_new4(n, chosen));
-	    if (RBASIC(t0)->klass) {
-		rb_raise(rb_eRuntimeError, "combination reentered");
-	    }
-	    do {
-		if (lev == 0) goto done;
-		stack[lev--]++;
-	    } while (stack[lev+1]+n == len+lev+1);
-	}
-    done:
-	tmpbuf_discard(t0);
-	tmpary_discard(cc);
+	VALUE ary0 = ary_make_shared_copy(ary); /* private defensive copy of ary */
+	volatile VALUE t0;
+	long *stack = ALLOCV_N(long, t0, n+1);
+
+	RBASIC_CLEAR_CLASS(ary0);
+	combinate0(len, n, stack, ary0);
+	ALLOCV_END(t0);
+	RBASIC_SET_CLASS_RAW(ary0, rb_cArray);
     }
     return ary;
 }
 
 /*
- * Recursively compute repeated permutations of +r+ elements of the set
+ * Compute repeated permutations of +r+ elements of the set
  * <code>[0..n-1]</code>.
  *
  * When we have a complete repeated permutation of array indexes, copy the
@@ -4782,47 +5092,44 @@ rb_ary_combination(VALUE ary, VALUE num)
  * n: the size of the set
  * r: the number of elements in each permutation
  * p: the array (of size r) that we're filling in
- * index: what index we're filling in now
  * values: the Ruby array that holds the actual values to permute
  */
 static void
-rpermute0(long n, long r, long *p, long index, VALUE values)
+rpermute0(const long n, const long r, long *const p, const VALUE values)
 {
-    long i, j;
-    for (i = 0; i < n; i++) {
-	p[index] = i;
-	if (index < r-1) {              /* if not done yet */
-	    rpermute0(n, r, p, index+1, values); /* recurse */
+    long i = 0, index = 0;
+
+    p[index] = i;
+    for (;;) {
+	if (++index < r-1) {
+	    p[index] = i = 0;
+	    continue;
 	}
-	else {
-	    /* We have a complete permutation of array indexes */
-	    /* Build a ruby array of the corresponding values */
-	    /* And yield it to the associated block */
-	    VALUE result = rb_ary_new2(r);
-	    VALUE *result_array = RARRAY_PTR(result);
-	    const VALUE *values_array = RARRAY_PTR(values);
-
-	    for (j = 0; j < r; j++) result_array[j] = values_array[p[j]];
-	    ARY_SET_LEN(result, r);
-	    rb_yield(result);
-	    if (RBASIC(values)->klass) {
+	for (i = 0; i < n; ++i) {
+	    p[index] = i;
+	    if (!yield_indexed_values(values, r, p)) {
 		rb_raise(rb_eRuntimeError, "repeated permute reentered");
 	    }
 	}
+	do {
+	    if (index <= 0) return;
+	} while ((i = ++p[--index]) >= n);
     }
 }
 
 static VALUE
-rb_ary_repeated_permutation_size(VALUE ary, VALUE args)
+rb_ary_repeated_permutation_size(VALUE ary, VALUE args, VALUE eobj)
 {
     long n = RARRAY_LEN(ary);
-    long k = NUM2LONG(RARRAY_PTR(args)[0]);
+    long k = NUM2LONG(RARRAY_AREF(args, 0));
+    VALUE v;
 
     if (k < 0) {
 	return LONG2FIX(0);
     }
 
-    return rb_funcall(LONG2NUM(n), id_power, 1, LONG2NUM(k));
+    v = LONG2NUM(k);
+    return rb_funcallv(LONG2NUM(n), id_power, 1, &v);
 }
 
 /*
@@ -4865,51 +5172,50 @@ rb_ary_repeated_permutation(VALUE ary, VALUE num)
     }
     else if (r == 1) { /* this is a special, easy case */
 	for (i = 0; i < RARRAY_LEN(ary); i++) {
-	    rb_yield(rb_ary_new3(1, RARRAY_PTR(ary)[i]));
+	    rb_yield(rb_ary_new3(1, RARRAY_AREF(ary, i)));
 	}
     }
     else {             /* this is the general case */
-	volatile VALUE t0 = tmpbuf(r, sizeof(long));
-	long *p = (long*)RSTRING_PTR(t0);
+	volatile VALUE t0;
+	long *p = ALLOCV_N(long, t0, r);
 	VALUE ary0 = ary_make_shared_copy(ary); /* private defensive copy of ary */
-	RBASIC(ary0)->klass = 0;
+	RBASIC_CLEAR_CLASS(ary0);
 
-	rpermute0(n, r, p, 0, ary0); /* compute and yield repeated permutations */
-	tmpbuf_discard(t0);
-	RBASIC(ary0)->klass = rb_cArray;
+	rpermute0(n, r, p, ary0); /* compute and yield repeated permutations */
+	ALLOCV_END(t0);
+	RBASIC_SET_CLASS_RAW(ary0, rb_cArray);
     }
     return ary;
 }
 
 static void
-rcombinate0(long n, long r, long *p, long index, long rest, VALUE values)
+rcombinate0(const long n, const long r, long *const p, const long rest, const VALUE values)
 {
-    long j;
-    if (rest > 0) {
-	for (; index < n; ++index) {
-	    p[r-rest] = index;
-	    rcombinate0(n, r, p, index, rest-1, values);
+    long i = 0, index = 0;
+
+    p[index] = i;
+    for (;;) {
+	if (++index < r-1) {
+	    p[index] = i;
+	    continue;
 	}
-    }
-    else {
-	VALUE result = rb_ary_new2(r);
-	VALUE *result_array = RARRAY_PTR(result);
-	const VALUE *values_array = RARRAY_PTR(values);
-
-	for (j = 0; j < r; ++j) result_array[j] = values_array[p[j]];
-	ARY_SET_LEN(result, r);
-	rb_yield(result);
-	if (RBASIC(values)->klass) {
-	    rb_raise(rb_eRuntimeError, "repeated combination reentered");
+	for (; i < n; ++i) {
+	    p[index] = i;
+	    if (!yield_indexed_values(values, r, p)) {
+		rb_raise(rb_eRuntimeError, "repeated combination reentered");
+	    }
 	}
+	do {
+	    if (index <= 0) return;
+	} while ((i = ++p[--index]) >= n);
     }
 }
 
 static VALUE
-rb_ary_repeated_combination_size(VALUE ary, VALUE args)
+rb_ary_repeated_combination_size(VALUE ary, VALUE args, VALUE eobj)
 {
     long n = RARRAY_LEN(ary);
-    long k = NUM2LONG(RARRAY_PTR(args)[0]);
+    long k = NUM2LONG(RARRAY_AREF(args, 0));
     if (k == 0) {
 	return LONG2FIX(1);
     }
@@ -4958,22 +5264,22 @@ rb_ary_repeated_combination(VALUE ary, VALUE num)
 	rb_yield(rb_ary_new2(0));
     }
     else if (n == 1) {
-	for (i = 0; i < len; i++) {
-	    rb_yield(rb_ary_new3(1, RARRAY_PTR(ary)[i]));
+	for (i = 0; i < RARRAY_LEN(ary); i++) {
+	    rb_yield(rb_ary_new3(1, RARRAY_AREF(ary, i)));
 	}
     }
     else if (len == 0) {
 	/* yield nothing */
     }
     else {
-	volatile VALUE t0 = tmpbuf(n, sizeof(long));
-	long *p = (long*)RSTRING_PTR(t0);
+	volatile VALUE t0;
+	long *p = ALLOCV_N(long, t0, n);
 	VALUE ary0 = ary_make_shared_copy(ary); /* private defensive copy of ary */
-	RBASIC(ary0)->klass = 0;
+	RBASIC_CLEAR_CLASS(ary0);
 
-	rcombinate0(len, n, p, 0, n, ary0); /* compute and yield repeated combinations */
-	tmpbuf_discard(t0);
-	RBASIC(ary0)->klass = rb_cArray;
+	rcombinate0(len, n, p, n, ary0); /* compute and yield repeated combinations */
+	ALLOCV_END(t0);
+	RBASIC_SET_CLASS_RAW(ary0, rb_cArray);
     }
     return ary;
 }
@@ -5011,8 +5317,8 @@ rb_ary_product(int argc, VALUE *argv, VALUE ary)
     long i,j;
     long resultlen = 1;
 
-    RBASIC(t0)->klass = 0;
-    RBASIC(t1)->klass = 0;
+    RBASIC_CLEAR_CLASS(t0);
+    RBASIC_CLEAR_CLASS(t1);
 
     /* initialize the arrays of arrays */
     ARY_SET_LEN(t0, n);
@@ -5115,7 +5421,7 @@ rb_ary_take(VALUE obj, VALUE n)
 
 /*
  *  call-seq:
- *     ary.take_while { |arr| block }  -> new_ary
+ *     ary.take_while { |obj| block }  -> new_ary
  *     ary.take_while                  -> Enumerator
  *
  *  Passes elements to the block until the block returns +nil+ or +false+, then
@@ -5137,7 +5443,7 @@ rb_ary_take_while(VALUE ary)
 
     RETURN_ENUMERATOR(ary, 0, 0);
     for (i = 0; i < RARRAY_LEN(ary); i++) {
-	if (!RTEST(rb_yield(RARRAY_PTR(ary)[i]))) break;
+	if (!RTEST(rb_yield(RARRAY_AREF(ary, i)))) break;
     }
     return rb_ary_take(ary, LONG2FIX(i));
 }
@@ -5174,7 +5480,7 @@ rb_ary_drop(VALUE ary, VALUE n)
 
 /*
  *  call-seq:
- *     ary.drop_while { |arr| block }   -> new_ary
+ *     ary.drop_while { |obj| block }   -> new_ary
  *     ary.drop_while                  -> Enumerator
  *
  *  Drops elements up to, but not including, the first element for which the
@@ -5197,12 +5503,63 @@ rb_ary_drop_while(VALUE ary)
 
     RETURN_ENUMERATOR(ary, 0, 0);
     for (i = 0; i < RARRAY_LEN(ary); i++) {
-	if (!RTEST(rb_yield(RARRAY_PTR(ary)[i]))) break;
+	if (!RTEST(rb_yield(RARRAY_AREF(ary, i)))) break;
     }
     return rb_ary_drop(ary, LONG2FIX(i));
 }
 
 /*
+ *  call-seq:
+ *     ary.any? [{ |obj| block }]   -> true or false
+ *
+ *  See also Enumerable#any?
+ */
+
+static VALUE
+rb_ary_any_p(VALUE ary)
+{
+    long i, len = RARRAY_LEN(ary);
+    const VALUE *ptr = RARRAY_CONST_PTR(ary);
+
+    if (!len) return Qfalse;
+    if (!rb_block_given_p()) {
+	for (i = 0; i < len; ++i) if (RTEST(ptr[i])) return Qtrue;
+    }
+    else {
+	for (i = 0; i < RARRAY_LEN(ary); ++i) {
+	    if (RTEST(rb_yield(RARRAY_AREF(ary, i)))) return Qtrue;
+	}
+    }
+    return Qfalse;
+}
+
+/*
+ * call-seq:
+ *   ary.dig(idx, ...)                 -> object
+ *
+ * Extracts the nested value specified by the sequence of <i>idx</i>
+ * objects by calling +dig+ at each step, returning +nil+ if any
+ * intermediate step is +nil+.
+ *
+ *   a = [[1, [2, 3]]]
+ *
+ *   a.dig(0, 1, 1)                    #=> 3
+ *   a.dig(1, 2, 3)                    #=> nil
+ *   a.dig(0, 0, 0)                    #=> NoMethodError, undefined method `dig' for 1:Fixnum
+ *   [42, {foo: :bar}].dig(1, :foo)    #=> :bar
+ */
+
+VALUE
+rb_ary_dig(int argc, VALUE *argv, VALUE self)
+{
+    rb_check_arity(argc, 1, UNLIMITED_ARGUMENTS);
+    self = rb_ary_at(self, *argv);
+    if (!--argc) return self;
+    ++argv;
+    return rb_obj_dig(argc, argv, self, Qnil);
+}
+
+/*
  *  Arrays are ordered, integer-indexed collections of any object.
  *
  *  Array indexing starts at 0, as in C or Java.  A negative index is assumed
@@ -5235,7 +5592,8 @@ rb_ary_drop_while(VALUE ary)
  *  This method is safe to use with mutable objects such as hashes, strings or
  *  other arrays:
  *
- *     Array.new(4) { Hash.new } #=> [{}, {}, {}, {}]
+ *     Array.new(4) { Hash.new }  #=> [{}, {}, {}, {}]
+ *     Array.new(4) {|i| i.to_s } #=> ["0", "1", "2", "3"]
  *
  *  This is also a quick way to build up multi-dimensional arrays:
  *
@@ -5259,7 +5617,8 @@ rb_ary_drop_while(VALUE ary)
  *
  *  Elements in an array can be retrieved using the Array#[] method.  It can
  *  take a single integer argument (a numeric index), a pair of arguments
- *  (start and length) or a range.
+ *  (start and length) or a range. Negative indices start counting from the end,
+ *  with -1 being the last element.
  *
  *     arr = [1, 2, 3, 4, 5, 6]
  *     arr[2]    #=> 3
@@ -5267,6 +5626,7 @@ rb_ary_drop_while(VALUE ary)
  *     arr[-3]   #=> 4
  *     arr[2, 3] #=> [3, 4, 5]
  *     arr[1..4] #=> [2, 3, 4, 5]
+ *     arr[1..-3] #=> [2, 3, 4]
  *
  *  Another way to access a particular array element is by using the #at method
  *
@@ -5355,7 +5715,8 @@ rb_ary_drop_while(VALUE ary)
  *  To delete a particular element anywhere in an array, use #delete:
  *
  *     arr = [1, 2, 2, 3]
- *     arr.delete(2) #=> [1, 3]
+ *     arr.delete(2) #=> 2
+ *     arr #=> [1,3]
  *
  *  A useful method if you need to remove +nil+ values from an array is
  *  #compact:
@@ -5390,10 +5751,10 @@ rb_ary_drop_while(VALUE ary)
  *  Another sometimes useful iterator is #reverse_each which will iterate over
  *  the elements in the array in reverse order.
  *
- *     words = %w[rats live on no evil star]
+ *     words = %w[first second third fourth fifth sixth]
  *     str = ""
- *     words.reverse_each { |word| str += "#{word.reverse} " }
- *     str #=> "rats live on no evil star "
+ *     words.reverse_each { |word| str += "#{word} " }
+ *     p str #=> "sixth fifth fourth third second first "
  *
  *  The #map method can be used to create a new array based on the original
  *  array, but with the values modified by the supplied block:
@@ -5454,6 +5815,7 @@ Init_Array(void)
     rb_define_method(rb_cArray, "inspect", rb_ary_inspect, 0);
     rb_define_alias(rb_cArray,  "to_s", "inspect");
     rb_define_method(rb_cArray, "to_a", rb_ary_to_a, 0);
+    rb_define_method(rb_cArray, "to_h", rb_ary_to_h, 0);
     rb_define_method(rb_cArray, "to_ary", rb_ary_to_ary_m, 0);
     rb_define_method(rb_cArray, "frozen?",  rb_ary_frozen_p, 0);
 
@@ -5547,9 +5909,12 @@ Init_Array(void)
     rb_define_method(rb_cArray, "drop", rb_ary_drop, 1);
     rb_define_method(rb_cArray, "drop_while", rb_ary_drop_while, 0);
     rb_define_method(rb_cArray, "bsearch", rb_ary_bsearch, 0);
+    rb_define_method(rb_cArray, "bsearch_index", rb_ary_bsearch_index, 0);
+    rb_define_method(rb_cArray, "any?", rb_ary_any_p, 0);
+    rb_define_method(rb_cArray, "dig", rb_ary_dig, -1);
 
     id_cmp = rb_intern("<=>");
-    sym_random = ID2SYM(rb_intern("random"));
+    id_random = rb_intern("random");
     id_div = rb_intern("div");
     id_power = rb_intern("**");
 }
diff --git a/bcc32/Makefile.sub b/bcc32/Makefile.sub
deleted file mode 100644
index 1cd26a8643..0000000000
--- a/bcc32/Makefile.sub
+++ /dev/null
@@ -1,617 +0,0 @@
-# -*- makefile -*-
-
-SHELL = $(COMSPEC)
-MKFILES = Makefile
-
-!ifndef MFLAGS
-MFLAGS=-
-!endif
-
-#### Start of system configuration section. ####
-!ifndef OS
-OS = bccwin32
-!endif
-!if !defined(RT)
-!error RT not defined.  Retry from configure pass.
-!endif
-
-arch = $(ARCH)-$(OS)
-
-## variables may be overridden by $(compile_dir)/Makefile
-!ifndef srcdir
-srcdir = ..
-!endif
-!ifndef RUBY_INSTALL_NAME
-RUBY_INSTALL_NAME = ruby
-!endif
-!ifndef RUBYW_INSTALL_NAME
-RUBYW_INSTALL_NAME = $(RUBY_INSTALL_NAME:ruby=rubyw)
-!elif "$(RUBYW_INSTALL_NAME)" == "$(RUBY_INSTALL_NAME)"
-RUBYW_INSTALL_NAME = $(RUBY_INSTALL_NAME:ruby=rubyw)
-!endif
-!if "$(RUBYW_INSTALL_NAME)" == "$(RUBY_INSTALL_NAME)"
-RUBYW_INSTALL_NAME = $(RUBY_INSTALL_NAME)w
-!endif
-!ifndef RUBY_SO_NAME
-RUBY_SO_NAME = $(RT)-$(RUBY_INSTALL_NAME)$(MAJOR)$(MINOR)$(TEENY)
-!endif
-!ifndef icondirs
-!ifdef ICONDIRS
-icondirs=$(ICONDIRS)
-!endif
-!endif
-!ifdef icondirs
-icondirs=$(icondirs:\=/)
-iconinc=-I$(icondirs: = -I)
-!endif
-###############
-
-.SUFFIXES: .y
-
-!ifndef CC
-CC = bcc32
-!endif
-!ifndef CPP
-CPP = cpp32
-!endif
-!ifndef RC
-RC = brcc32
-!endif
-!ifndef YACC
-YACC = bison
-!endif
-!ifndef AR
-AR = tlib
-!endif
-!ifndef BASERUBY
-BASERUBY = ruby
-!endif
-
-PURIFY =
-AUTOCONF = autoconf
-IFCHANGE = $(srcdir:/=\)\win32\ifchange.bat
-RM = $(srcdir:/=\)\win32\rm.bat
-CP = copy > nul
-MV = move > nul
-
-!if !defined(PROCESSOR_ARCHITECTURE)
-PROCESSOR_ARCHITECTURE = x86
-!endif
-MACHINE = $(PROCESSOR_ARCHITECTURE)
-!if "$(PROCESSOR_ARCHITECTURE)" == "x86"
-!ifndef PROCESSOR_LEVEL
-PROCESSOR_LEVEL = 5
-!endif
-!if 6 < $(PROCESSOR_LEVEL)
-PROCESSOR_LEVEL = 6
-!endif
-PROCESSOR_FLAG = -$(PROCESSOR_LEVEL)
-CPU = i$(PROCESSOR_LEVEL)86
-ARCH = i386
-!else
-CPU = $(PROCESSOR_ARCHITECTURE)
-ARCH = $(PROCESSOR_ARCHITECTURE)
-!endif
-!ifndef DEBUGFLAGS
-DEBUGFLAGS = 
-!endif
-!ifndef OPTFLAGS
-OPTFLAGS = -O
-!endif
-
-!ifndef prefix
-prefix = /usr
-!endif
-!ifndef exec_prefix
-exec_prefix = $(prefix)
-!endif
-!ifndef libdir
-libdir = $(exec_prefix)/lib
-!endif
-!if !defined(datadir)
-datadir = $(prefix)/share
-!endif
-!ifndef EXTOUT
-EXTOUT = .ext
-!endif
-!ifndef TESTUI
-TESTUI = console
-!endif
-!ifndef TESTS
-TESTS =
-!endif
-!ifndef RDOCTARGET
-RDOCTARGET = install-doc
-!endif
-
-OUTFLAG       = -o
-COUTFLAG      = -o
-!ifndef CFLAGS
-CFLAGS = -q -tWR -tWC $(DEBUGFLAGS) $(OPTFLAGS) $(PROCESSOR_FLAG) -w- -wsus -wcpt -wdup -wext -wrng -wrpt -wzdi
-!endif
-!ifndef DEFS
-DEFS =
-!endif
-!ifndef CPPFLAGS
-CPPFLAGS =
-!endif
-CPPFLAGS = $(DEFS) $(CPPFLAGS)
-!ifndef CXXFLAGS
-CXXFLAGS = $(CFLAGS)
-!endif
-!ifndef LDFLAGS
-LDFLAGS = -S:$(STACK)
-!endif
-!ifndef RFLAGS
-RFLAGS = $(iconinc)
-!endif
-!ifndef EXTLIBS
-EXTLIBS =
-!endif
-!ifndef MEMLIB
-MEMLIB =
-!endif
-LIBS = $(MEMLIB) cw32i.lib import32.lib ws2_32.lib $(EXTLIBS)
-MISSING = acosh.obj cbrt.obj crypt.obj erf.obj lgamma_r.obj strlcat.obj strlcpy.obj tgamma.obj win32.obj
-
-!ifndef STACK
-STACK = 0x2000000
-!endif
-
-XCFLAGS = -DRUBY_EXPORT -I. -I$(arch_hdrdir) -I$(hdrdir) -I$(srcdir) -I$(srcdir)/missing
-
-ARFLAGS = /a /p32
-LD = ilink32 -q -Gn
-LDSHARED  = $(LD)
-XLDFLAGS  = -Tpe c0x32.obj
-WLDFLAGS  = -aa -Tpe c0w32.obj
-DLDFLAGS  = -Tpd c0d32.obj
-LIBRUBY_LDSHARED = $(LDSHARED)
-LIBRUBY_DLDFLAGS = -Gi $(DLDFLAGS) $(EXTLDFLAGS)
-LDOBJECTS = $(MAINOBJ)
-
-SOLIBS = 
-
-EXEEXT = .exe
-PROGRAM=$(RUBY_INSTALL_NAME)$(EXEEXT)
-WPROGRAM=$(RUBYW_INSTALL_NAME)$(EXEEXT)
-RUBYDEF = $(RUBY_SO_NAME).def
-MINIRUBY = .\miniruby$(EXEEXT) -I$(srcdir)/lib $(MINIRUBYOPT)
-RUNRUBY = .\$(PROGRAM) -i"$(EXTOUT)/$(arch)" "$(srcdir)/runruby.rb" --extout="$(EXTOUT)" --
-
-ORGLIBPATH = $(LIB)
-
-#### End of system configuration section. ####
-
-LIBRUBY_A     = $(RUBY_SO_NAME)-static.lib
-LIBRUBY_SO    = $(RUBY_SO_NAME).dll
-LIBRUBY       = $(RUBY_SO_NAME).lib
-LIBRUBYARG    = $(LIBRUBY)
-THREAD_MODEL  = win32
-
-PREP          = miniruby$(EXEEXT)
-
-OBJEXT        = obj
-ASMEXT        = asm
-
-INSTALLED_LIST= .installed.list
-
-MKMAIN_CMD    = mkmain.bat
-
-SRC_FILE      = $(<:\=/)
-
-WINMAINOBJ    = winmain.$(OBJEXT)
-ARCHMINIOBJS  = dmydln.$(OBJEXT)
-
-arch_hdrdir = $(EXTOUT)/include/$(arch)
-hdrdir = $(srcdir)/include
-VPATH = $(arch_hdrdir)/ruby;$(hdrdir)/ruby;$(srcdir);$(srcdir)/enc;$(srcdir)/missing;$(srcdir)/win32
-
-.path.c = .;$(srcdir);$(srcdir)/enc;$(srcdir)/win32;$(srcdir)/missing
-.path.ci = $(srcdir)
-.path.inc = .;$(srcdir)
-.path.def = .;$(srcdir)
-.path.h = .;$(arch_hdrdir)/ruby;$(hdrdir)/ruby;$(srcdir);$(srcdir)/win32;$(srcdir)/missing
-.path.y = $(srcdir)
-.path. = $(srcdir)
-
-.c.obj:
-	$(CC) $(CFLAGS) $(XCFLAGS) -I. $(CPPFLAGS) $(COUTFLAG)$@ -c $(<:/=\)
-
-.c.asm:
-	$(CC) $(CFLAGS) $(XCFLAGS) -I. $(CPPFLAGS) $(COUTFLAG)$@ -S $(<:\=/)
-
-.rc.res:
-	$(RC) $(RFLAGS) -I. -I$(<D). $(iconinc) -I$(srcdir)/win32 $(RFLAGS) -fo$@ $(<:/=\)
-
-all: $(srcdir)/bcc32/Makefile.sub $(srcdir)/common.mk
-
-ruby: $(PROGRAM)
-rubyw: $(WPROGRAM)
-
-!include $(srcdir)/common.mk
-
-$(MKFILES): $(srcdir)/bcc32/Makefile.sub $(srcdir)/bcc32/configure.bat $(srcdir)/bcc32/setup.mak
-	$(COMSPEC) /C $(srcdir:/=\)\bcc32\configure.bat $(configure_args)
-	@echo $(MKFILES) should be updated, re-run $(MAKE).
-	@$(MAKE) > nul -q -f &&|
-PHONY: nul
-	@exit
-|
-
-PHONY: nul
-
-RUBY_CONFIG_H = $(arch_hdrdir)/ruby/config.h
-CONFIG_H = ./.config.h.time
-
-config: config.status
-
-config.status: $(CONFIG_H)
-
-guard = INCLUDE_RUBY_CONFIG_H
-
-$(CONFIG_H): $(MKFILES) $(srcdir)/bcc32/Makefile.sub
-	@if not exist $(arch_hdrdir:/=\) md $(arch_hdrdir:/=\)
-	@if not exist $(arch_hdrdir:/=\)\ruby md $(arch_hdrdir:/=\)\ruby
-	@$(IFCHANGE) $(RUBY_CONFIG_H:/=\) &&|
-\#ifndef $(guard)
-\#define $(guard) 1
-\#define NO_BIG_INLINE 1
-\#define HAVE_SYS_TYPES_H 1
-\#define HAVE_SYS_STAT_H 1
-\#define HAVE_STDLIB_H 1
-\#define HAVE_STRING_H 1
-\#define HAVE_MEMORY_H 1
-\#define HAVE_LONG_LONG 1
-\#define HAVE_OFF_T 1
-\#define SIZEOF_INT 4
-\#define SIZEOF_SHORT 2
-\#define SIZEOF_LONG 4
-\#define SIZEOF_LONG_LONG 0
-\#define SIZEOF___INT64 8
-\#define SIZEOF_OFF_T 8
-\#define SIZEOF_VOIDP 4
-\#define SIZEOF_FLOAT 4
-\#define SIZEOF_DOUBLE 8
-\#define SIZEOF_TIME_T 4
-\#define SIZEOF_RLIM_T 0
-\#define SIZEOF_SIZE_T 4
-\#define SIZEOF_PTRDIFF_T 4
-\#define HAVE_PROTOTYPES 1
-\#define TOKEN_PASTE(x,y) x\#\#y
-\#define HAVE_STDARG_PROTOTYPES 1
-\#define NORETURN(x) x
-\#define RUBY_EXTERN extern __declspec(dllimport)
-\#define HAVE_DECL_SYS_NERR 1
-\#define HAVE_LIMITS_H 1
-\#define HAVE_FCNTL_H 1
-\#define HAVE_UTIME_H 1
-\#define HAVE_FLOAT_H 1
-\#define rb_uid_t uid_t
-\#define rb_gid_t gid_t
-\#define rb_pid_t int
-\#define HAVE_STRUCT_STAT_ST_RDEV 1
-\#define HAVE_ST_RDEV 1
-!if $(BORLANDC) < 0x0580
-\#define int8_t signed char
-\#define uint8_t unsigned char
-\#define int16_t short
-\#define uint16_t unsigned short
-\#define int32_t int
-\#define uint32_t unsigned int
-\#define int64_t __int64
-\#define uint64_t unsigned __int64
-\#define ssize_t int
-!endif
-\#define HAVE_INT8_T 1
-\#define HAVE_UINT8_T 1
-\#define SIZEOF_INT8_T 1
-\#define HAVE_INT16_T 1
-\#define HAVE_UINT16_T 1
-\#define SIZEOF_INT32_T 2
-\#define HAVE_INT32_T 1
-\#define HAVE_UINT32_T 1
-\#define SIZEOF_INT32_T 4
-\#define HAVE_INT64_T 1
-\#define HAVE_UINT64_T 1
-\#define SIZEOF_INT64_T 8
-\#define HAVE_INTPTR_T 1
-\#define HAVE_UINTPTR_T 1
-\#define HAVE_SSIZE_T 1
-\#define GETGROUPS_T int
-\#define RETSIGTYPE void
-\#define HAVE_ALLOCA 1
-\#define HAVE_DUP2 1
-\#define HAVE_MEMMOVE 1
-\#define HAVE_MKDIR 1
-\#define HAVE_STRCASECMP 1
-\#define HAVE_STRNCASECMP 1
-\#define HAVE_STRERROR 1
-\#define HAVE_STRFTIME 1
-\#define HAVE_STRCHR 1
-\#define HAVE_STRSTR 1
-\#define HAVE_STRTOD 1
-\#define HAVE_STRTOL 1
-\#define HAVE_STRTOUL 1
-\#define HAVE_SNPRINTF 1
-\#define HAVE_VSNPRINTF 1
-\#define HAVE_ISNAN 1
-\#define HAVE_FINITE 1
-\#define HAVE_HYPOT 1
-\#define HAVE_FMOD 1
-\#define HAVE_WAITPID 1
-\#define HAVE_FSYNC 1
-\#define HAVE_GETCWD 1
-\#define HAVE_TRUNCATE 1
-\#define HAVE_FTRUNCATE 1
-\#define HAVE_FSEEKO 1
-\#define HAVE_FTELLO 1
-\#define HAVE_TIMES 1
-\#define HAVE_FCNTL 1
-\#define HAVE_LINK 1
-\#define HAVE_TELLDIR 1
-\#define HAVE_SEEKDIR 1
-\#define HAVE_COSH 1
-\#define HAVE_SINH 1
-\#define HAVE_TANH 1
-\#define RSHIFT(x,y) ((x)>>(int)y)
-\#define FILE_COUNT level
-\#define FILE_READPTR curp
-\#define RUBY_SETJMP(env) setjmp(env)
-\#define RUBY_LONGJMP(env,val) longjmp(env,val)
-\#define RUBY_JMP_BUF jmp_buf
-\#define inline __inline
-\#define NEED_IO_SEEK_BETWEEN_RW 1
-\#define STACK_GROW_DIRECTION -1
-\#define DEFAULT_KCODE KCODE_NONE
-\#define LOAD_RELATIVE 1
-\#define DLEXT ".so"
-\#define RUBY_LIB_PREFIX "/lib/ruby"
-\#define RUBY_PLATFORM "$(ARCH)-$(OS)"
-\#endif /* $(guard) */
-|
-	@exit > $(@:/=\)
-
-config.status: $(MKFILES) $(srcdir)/bcc32/Makefile.sub $(srcdir)/common.mk
-	@echo Creating $@
-	@type > $@ &&|
-# Generated automatically by Makefile.sub.
-s,@SHELL@,$$(COMSPEC),;t t
-s,@BUILD_FILE_SEPARATOR@,\,;t t
-s,@PATH_SEPARATOR@,;,;t t
-s,@CFLAGS@,$(CFLAGS),;t t
-s,@DEFS@,$(DEFS),;t t
-s,@CPPFLAGS@,$(CPPFLAGS),;t t
-s,@CXXFLAGS@,$(CXXFLAGS),;t t
-s,@FFLAGS@,$(FFLAGS),;t t
-s,@LDFLAGS@,,;t t
-s,@LIBS@,$(LIBS),;t t
-s,@exec_prefix@,$${prefix},;t t
-s,@prefix@,$(prefix),;t t
-s,@program_transform_name@,s,,,,;t t
-s,@bindir@,$${exec_prefix}/bin,;t t
-s,@sbindir@,$${exec_prefix}/sbin,;t t
-s,@libexecdir@,$${exec_prefix}/libexec,;t t
-s,@datadir@,$${prefix}/share,;t t
-s,@sysconfdir@,$${prefix}/etc,;t t
-s,@sharedstatedir@,/etc,;t t
-s,@localstatedir@,/var,;t t
-s,@libdir@,$${exec_prefix}/lib,;t t
-s,@includedir@,$${prefix}/include,;t t
-s,@oldincludedir@,/usr/include,;t t
-s,@infodir@,$${prefix}/info,;t t
-s,@mandir@,$${prefix}/man,;t t
-s,@ridir@,$${prefix}/share/ri,;t t
-s,@build@,$(CPU)-pc-$(OS),;t t
-s,@build_alias@,$(CPU)-$(OS),;t t
-s,@build_cpu@,$(CPU),;t t
-s,@build_vendor@,pc,;t t
-s,@build_os@,$(OS),;t t
-s,@host@,$(CPU)-pc-$(OS),;t t
-s,@host_alias@,$(CPU)-$(OS),;t t
-s,@host_cpu@,$(CPU),;t t
-s,@host_vendor@,pc,;t t
-s,@host_os@,$(OS),;t t
-s,@target@,$(ARCH)-pc-$(OS),;t t
-s,@target_alias@,$(ARCH)-$(OS),;t t
-s,@target_cpu@,$(ARCH),;t t
-s,@target_vendor@,pc,;t t
-s,@target_os@,$(OS),;t t
-s,@CC@,$(CC),;t t
-s,@CPP@,cpp32,;t t
-s,@CXX@,$$(CC),;t t
-s,@LD@,$(LD),;t t
-s,@YACC@,$(YACC),;t t
-s,@RANLIB@,,;t t
-s,@AR@,$(AR),;t t
-s,@ARFLAGS@,$(ARFLAGS) ,;t t
-s,@LN_S@,$(LN_S),;t t
-s,@SET_MAKE@,MFLAGS = -$$(MAKEFLAGS),;t t
-s,@RM@,$$(top_srcdir:/=\)\win32\rm.bat,;t t
-s,@CP@,copy > nul,;t t
-s,@LIBOBJS@, $(MISSING),;t t
-s,@ALLOCA@,$(ALLOCA),;t t
-s,@DEFAULT_KCODE@,$(DEFAULT_KCODE),;t t
-s,@EXEEXT@,.exe,;t t
-s,@OBJEXT@,obj,;t t
-s,@XCFLAGS@,$(XCFLAGS),;t t
-s,@XLDFLAGS@,$(XLDFLAGS),;t t
-s,@DLDFLAGS@,$(DLDFLAGS),;t t
-s,@ARCH_FLAG@,$(ARCH_FLAG),;t t
-s,@STATIC@,$(STATIC),;t t
-s,@CCDLFLAGS@,,;t t
-s,@LDSHARED@,$(LDSHARED),;t t
-s,@DLEXT@,so,;t t
-s,@LIBEXT@,lib,;t t
-s,@STRIP@,$(STRIP),;t t
-s,@EXTSTATIC@,$(EXTSTATIC),;t t
-s,@setup@,Setup,;t t
-s,@MINIRUBY@,$(MINIRUBY),;t t
-s,@PREP@,miniruby$(EXEEXT),;t t
-s,@RUNRUBY@,$(RUNRUBY),;t t
-s,@EXTOUT@,$(EXTOUT),;t t
-s,@ARCHFILE@,,;t t
-s,@RDOCTARGET@,,;t t
-s,@LIBRUBY_LDSHARED@,$$(LDSHARED),;t t
-s,@LIBRUBY_DLDFLAGS@,-Gi $$(DLDFLAGS),;t t
-s,@RUBY_INSTALL_NAME@,$(RUBY_INSTALL_NAME),;t t
-s,@rubyw_install_name@,$(RUBYW_INSTALL_NAME),;t t
-s,@RUBYW_INSTALL_NAME@,$(RUBYW_INSTALL_NAME),;t t
-s,@RUBY_SO_NAME@,$(RUBY_SO_NAME),;t t
-s,@LIBRUBY_A@,$$(RUBY_SO_NAME)-static.lib,;t t
-s,@LIBRUBY_SO@,$$(RUBY_SO_NAME).dll,;t t
-s,@LIBRUBY_ALIASES@,$(LIBRUBY_ALIASES),;t t
-s,@LIBRUBY@,$$(RUBY_SO_NAME).lib,;t t
-s,@LIBRUBYARG@,$$(LIBRUBYARG_SHARED),;t t
-s,@LIBRUBYARG_STATIC@,$$(LIBRUBY_A),;t t
-s,@LIBRUBYARG_SHARED@,$$(LIBRUBY),;t t
-s,@SOLIBS@,$(SOLIBS),;t t
-s,@DLDLIBS@,$(DLDLIBS),;t t
-s,@ENABLE_SHARED@,yes,;t t
-s,@OUTFLAG@,$(OUTFLAG),;t t
-s,@COUTFLAG@,$(COUTFLAG),;t t
-s,@CPPOUTFILE@,,;t t
-s,@LIBPATHFLAG@, -L"%s",;t t
-s,@RPATHFLAG@,,;t t
-s,@LIBARG@,%s.lib,;t t
-s,@LINK_SO@,$$(LDSHARED) $$(DLDFLAGS) $$(LIBPATH) $$(OBJS:/=\), $$(@:/=\), nul, $$(LIBS) $$(LOCAL_LIBS), $$(DEFFILE:/=\), $$(RESFILE:/=\),;t t
-s,@COMPILE_C@,$$(CC) $$(INCFLAGS) $$(CFLAGS) $$(CPPFLAGS) $(COUTFLAG)$$(@) -c $$(<:/=\),;t t
-s,@COMPILE_CXX@,$$(CXX) $$(INCFLAGS) $$(CXXFLAGS) $$(CPPFLAGS) -P $(COUTFLAG)$$(@) -c $$(<:/=\),;t t
-s,@COMPILE_RULES@,{$$(srcdir)}.%s{}.%s: {$$(topdir)}.%s{}.%s: {$$(hdrdir)}.%s{}.%s: .%s.%s:,;t t
-s,@RULE_SUBST@,{.;$$(VPATH)}%s,;t t
-s,@COMMON_LIBS@,m advapi32 avicap32 avifil32 cap comctl32 comdlg32 dlcapi gdi32 glu32 imagehlp imm32 inetmib1 kernel32 loadperf lsapi32 lz32 mapi32 mgmtapi mpr msacm32 msvfw32 nddeapi netapi32 ole32 oleaut32 oledlg olepro32 opengl32 pdh pkpd32 rasapi32 rasdlg rassapi rpcrt4 setupapi shell32 shfolder snmpapi sporder tapi32 url user32 vdmdbg version win32spl winmm wintrust wsock32,;t t
-s,@COMMON_MACROS@,WIN32_LEAN_AND_MEAN WIN32,;t t
-s,@COMMON_HEADERS@,winsock2.h windows.h,;t t
-s,@cleanlibs@,$$*.tds,;t t
-s,@cleanobjs@,$$*-$$(arch).def $$*.il? $$*.lib,;t t
-s,@TRY_LINK@,$$(CC) -oconftest $$(INCFLAGS) -I$$(hdrdir) $$(CPPFLAGS) $$(CFLAGS) $$(LIBPATH) $$(LDFLAGS) $$(src) $$(LOCAL_LIBS) $$(LIBS),;t t
-s,@EXPORT_PREFIX@,_,;t t
-s,@arch@,$(ARCH)-$(OS),;t t
-s,@sitearch@,$(ARCH)-$(OS),;t t
-s,@sitedir@,$${prefix}/lib/ruby/site_ruby,;t t
-s,@vendordir@,$${prefix}/lib/ruby/vendor_ruby,;t t
-s,@rubyhdrdir@,$$(includedir)/ruby-$$(MAJOR).$$(MINOR).$$(TEENY),;t t
-s,@sitehdrdir@,$$(rubyhdrdir)/site_ruby,;t t
-s,@vendorhdrdir@,$$(rubyhdrdir)/vendor_ruby,;t t
-s,@configure_args@,--enable-shared $(configure_args),;t t
-s,@configure_input@,$$configure_input,;t t
-s,@srcdir@,$(srcdir),;t t
-s,@top_srcdir@,$(srcdir),;t t
-|
-
-miniruby$(EXEEXT):
-		@echo $(LIBS)
-		$(LD) $(LDFLAGS) $(XLDFLAGS) $(MAINOBJ) $(MINIOBJS) $(COMMONOBJS:/=\) $(DMYEXT),$@,nul,$(LIBS)
-
-$(PROGRAM):	$(MAINOBJ) $(LIBRUBY_SO) $(RUBY_INSTALL_NAME).res
-		$(LD) $(LDFLAGS) $(XLDFLAGS) $(MAINOBJ),$@,nul,$(LIBRUBYARG) $(LIBS),,$(RUBY_INSTALL_NAME).res
-
-$(WPROGRAM):	$(MAINOBJ) $(WINMAINOBJ) $(LIBRUBY_SO) $(RUBYW_INSTALL_NAME).res
-		$(LD) $(LDFLAGS) $(WLDFLAGS) $(MAINOBJ) $(WINMAINOBJ),$@,nul,$(LIBRUBYARG) $(LIBS),,$(RUBYW_INSTALL_NAME).res
-
-$(LIBRUBY_A):	$(OBJS) $(DMYEXT)
-		@-if exist $@ del $@
-		$(AR) $(ARFLAGS) "$@" $(OBJS) $(DMYEXT)
-
-# $(LIBRUBY):	$(LIBRUBY_SO)
-#		implib $@ $(LIBRUBY_SO)
-
-$(LIBRUBY_SO): $(LIBRUBY_A) $(DLDOBJS) $(RUBYDEF) $(RUBY_SO_NAME).res
-		@echo $(DLDOBJS)
-		@$(PRE_LIBRUBY_UPDATE)
-		$(LIBRUBY_LDSHARED) $(LIBRUBY_DLDFLAGS) $(DLDOBJS:/=\),$(LIBRUBY_SO),nul,$(LIBRUBY_A) $(LIBS),$(RUBYDEF),$(RUBY_SO_NAME).res
-
-$(LIBRUBY): $(LIBRUBY_SO)
-
-$(RUBYDEF):	$(LIBRUBY_A) $(PREP)
-		$(MINIRUBY) $(srcdir)/bcc32/mkexports.rb -output=$@ -base=$(RUBY_SO_NAME) $(LIBRUBY_A)
-
-$(RUBY_INSTALL_NAME).rc $(RUBYW_INSTALL_NAME).rc $(RUBY_SO_NAME).rc: rbconfig.rb $(srcdir)/revision.h $(srcdir)/win32/resource.rb
-		@$(MINIRUBY) $(srcdir)/win32/resource.rb \
-			-ruby_name=$(RUBY_INSTALL_NAME) \
-			-rubyw_name=$(RUBYW_INSTALL_NAME) \
-			-so_name=$(RUBY_SO_NAME) \
-			. $(icondirs) $(srcdir)/win32
-
-lex.c: {$(srcdir)}lex.c.blt
-	copy "$(?:/=\)" $@
-
-post-install-bin::
-	@$(NULLCMD)
-post-install-lib::
-	@$(NULLCMD)
-post-install-ext-comm::
-	@$(NULLCMD)
-post-install-ext-arch::
-	@$(NULLCMD)
-post-install-man::
-	@$(NULLCMD)
-post-install-doc::
-	@$(NULLCMD)
-
-clean-local::
-		@$(RM) $(WINMAINOBJ) ext\extinit.c ext\extinit.$(OBJEXT) *.tds *.il? $(RUBY_SO_NAME).lib
-		@$(RM) $(RUBY_INSTALL_NAME).res $(RUBYW_INSTALL_NAME).res $(RUBY_SO_NAME).res
-		@$(RM) *.map *.pdb *.ilk *.exp $(RUBYDEF) ext\ripper\y.output
-
-distclean-local::
-		@$(RM) ext\config.cache $(RBCONFIG:/=\)
-		@$(RM) $(RUBY_INSTALL_NAME).rc $(RUBYW_INSTALL_NAME).rc $(RUBY_SO_NAME).rc
-
-clean-ext distclean-ext realclean-ext::
-		@for /R ext %I in (.) do @if exist %I\Makefile ( \
-		    echo $(@:-ext=)ing %~nI & \
-		    cd %I & \
-		    $(MAKE) $(MFLAGS) $(@:-ext=) & \
-		    cd %CD% \
-		)
-
-ext/extinit.obj: ext/extinit.c $(SETUP)
-	$(CC) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) $(COUTFLAG)$@ -c ext/extinit.c
-
-main.$(OBJEXT): win32.h
-ascii.$(OBJEXT): win32.h
-array.$(OBJEXT): win32.h
-bignum.$(OBJEXT): win32.h
-class.$(OBJEXT): win32.h
-compar.$(OBJEXT): win32.h
-dir.$(OBJEXT): dir.h win32.h
-dln.$(OBJEXT): win32.h
-enum.$(OBJEXT): win32.h
-error.$(OBJEXT): win32.h
-euc_jp.$(OBJEXT): win32.h
-eval.$(OBJEXT): win32.h
-file.$(OBJEXT): win32.h
-gc.$(OBJEXT): win32.h
-hash.$(OBJEXT): win32.h
-inits.$(OBJEXT): win32.h
-io.$(OBJEXT): win32.h
-marshal.$(OBJEXT): win32.h
-math.$(OBJEXT): win32.h
-numeric.$(OBJEXT): win32.h
-object.$(OBJEXT): win32.h
-pack.$(OBJEXT): win32.h
-parse.$(OBJEXT): win32.h
-process.$(OBJEXT): win32.h
-prec.$(OBJEXT): win32.h
-random.$(OBJEXT): win32.h
-range.$(OBJEXT): win32.h
-re.$(OBJEXT): win32.h
-regcomp.$(OBJEXT): win32.h
-regenc.$(OBJEXT): win32.h
-regerror.$(OBJEXT): win32.h
-regexec.$(OBJEXT): win32.h
-reggnu.$(OBJEXT): win32.h
-regparse.$(OBJEXT): win32.h
-ruby.$(OBJEXT): win32.h
-signal.$(OBJEXT): win32.h
-sjis.$(OBJEXT): win32.h
-sprintf.$(OBJEXT): win32.h
-st.$(OBJEXT): win32.h
-string.$(OBJEXT): win32.h
-struct.$(OBJEXT): win32.h
-time.$(OBJEXT): win32.h
-utf_8.$(OBJEXT): win32.h
-util.$(OBJEXT): win32.h
-variable.$(OBJEXT): win32.h
-version.$(OBJEXT): win32.h
diff --git a/bcc32/README.bcc32 b/bcc32/README.bcc32
deleted file mode 100644
index cd33eec0a1..0000000000
--- a/bcc32/README.bcc32
+++ /dev/null
@@ -1,130 +0,0 @@
-=begin
-
-= How to build ruby using Borland C++
-
-== Requirement
-
-(1) Borland C++ 5.0 or later.
-
-(2) Please set environment variable (({PATH}))
-    to run required commands properly from the command line.
-
-    Note: building ruby requires following commands.
-     * make
-     * bcc32
-     * tlib
-     * ilink32
-
-(3) If you want to build from CVS source, following commands are required.
-     * bison ((<URL:http://gnuwin32.sourceforge.net/packages/bison.htm>))
-     * sed   ((<URL:http://gnuwin32.sourceforge.net/packages/sed.htm>))
-
-(4) We strongly recommend to build ruby on C++Builder, to link following files.
-     * usebormm.lib
-     * memmgr.lib
-
-    RTL's internal memory manager cannot handle large memory block properly,
-    so we should use borlndmm.dll instead.
-     10000.times { "" << "." * 529671; GC.start } # crash
-
-== How to compile and install
-
-(1) Execute bcc32\configure.bat on your build directory.
-     ex. c:\src\ruby> bcc32\configure.bat
-    You can specify the target platform as an argument.
-    For example, run `((%configure i686-bccwin32%))'
-    You can also specify the install directory.
-    For example, run `((%configure --prefix=<install_directory>%))'
-    Default of the install directory is /usr .
-    The default ((|<PLATFORM>|)) is `(({i386-bccwin32}))'.
-     
-(2) Change ((|RUBY_INSTALL_NAME|)) and ((|RUBY_SO_NAME|)) in (({Makefile}))
-    if you want to change the name of the executable files. 
-    And add ((|RUBYW_INSTALL_NAME|)) to change the name of the
-    executable without console window if also you want.
-
-(3) Run `((%make%))'
-
-(4) Run `((%make test%))'
-
-(5) Run `((%make install%))'
-
-(6) Requires dynamic RTL (cc3250.dll on C++Builder5) and borlndmm.dll (If built with
-    usebormm.lib) to use installed binary. These files are ordinary in bcc32's bin
-    directory.
-
-== Icons
-
-Any icon files(*.ico) in the build directory, directories specified with
-((|icondirs|)) make variable and (({win32})) directory under the ruby
-source directory will be included in DLL or executable files, according
-to their base names.
-    $(RUBY_INSTALL_NAME).ico or ruby.ico   --> $(RUBY_INSTALL_NAME).exe
-    $(RUBYW_INSTALL_NAME).ico or rubyw.ico --> $(RUBYW_INSTALL_NAME).exe
-    the others                             --> $(RUBY_SO_NAME).dll
-
-Although no icons are distributed with the ruby source or in the official 
-site, you can use anything you like. For example, followings are written 
-in Japanese, but you can download at least.
-
-* ((<URL:http://member.nifty.ne.jp/ueivu/rubyico.html>)) or
-  ((<zipped icons|URL:http://member.nifty.ne.jp/ueivu/Ruby_ico.zip>))
-* ((<URL:http://homepage1.nifty.com/a_nakata/ruby/>)) or
-  ((<icon itself|URL:http://homepage1.nifty.com/a_nakata/ruby/RubyIcon.ico>))
-
-== Build examples
-
-* Build on the ruby source directory.
-
-  ex.)
-    ruby source directory:  C:\ruby
-    build directory:        C:\ruby
-    install directory:      C:\usr\local
-
-    C:
-    cd \ruby
-    bcc32\configure --prefix=/usr/local
-    make
-    make test
-    make install
-
-* Build on the relative directory from the ruby source directory and CPU type 
-  i386.
-
-  ex.)
-    ruby source directory:  C:\ruby
-    build directory:        C:\ruby\bccwin32
-    install directory:      C:\usr\local
-    CPU                     i386
-    
-    C:
-    cd \ruby
-    mkdir bccwin32
-    cd bccwin32
-    ..\bcc32\configure --prefix=/usr/local
-    make
-    make test
-    make install
-
-* Build on the different drive.
-
-  ex.)
-    ruby source directory:  C:\src\ruby
-    build directory:        D:\build\ruby
-    install directory:      C:\usr\local
-
-    D:
-    cd D:\build\ruby
-    C:\src\ruby\bcc32\configure --prefix=C:/usr/local
-    make
-    make test
-    make install
-
-== Bugs
-
-You can ((*NOT*)) use a path name contains any white space characters as
-the ruby source directory, this restriction comes from the behavior of
-(({!INCLUDE})) directives of (({MAKE})).
-((- you may call it a bug. -))
-
-=end
diff --git a/bcc32/configure.bat b/bcc32/configure.bat
deleted file mode 100755
index 8cdfc64b03..0000000000
--- a/bcc32/configure.bat
+++ /dev/null
@@ -1,163 +0,0 @@
-@echo off

-::: Don't set environment variable in batch file other than autoexec.bat

-::: to avoid "Out of environment space" problem on Windows 95/98.

-::: set TMPMAKE=~tmp~.mak

-

-echo> ~tmp~.mak ####

-echo>> ~tmp~.mak conf = %0

-echo>> ~tmp~.mak $(conf:\=/): nul

-echo>> ~tmp~.mak 	@del ~setup~.mak

-echo>> ~tmp~.mak 	@-$(MAKE) -l$(MAKEFLAGS) -f $(@D)setup.mak \

-if exist pathlist.tmp del pathlist.tmp

-if exist confargs.mk del confargs.mk

-:loop

-if "%1" == "" goto :end

-if "%1" == "--prefix" goto :prefix

-if "%1" == "prefix" goto :prefix

-if "%1" == "--srcdir" goto :srcdir

-if "%1" == "srcdir" goto :srcdir

-if "%1" == "--target" goto :target

-if "%1" == "target" goto :target

-if "%1" == "--with-static-linked-ext" goto :extstatic

-if "%1" == "--program-suffix" goto :suffix

-if "%1" == "RUBY_SUFFIX" goto :suffix

-if "%1" == "--program-name" goto :installname

-if "%1" == "--install-name" goto :installname

-if "%1" == "RUBY_INSTALL_NAME" goto :installname

-if "%1" == "--so-name" goto :soname

-if "%1" == "RUBY_SO_NAME" goto :soname

-if "%1" == "--enable-install-doc" goto :enable-rdoc

-if "%1" == "--disable-install-doc" goto :disable-rdoc

-if "%1" == "--extout" goto :extout

-if "%1" == "EXTOUT" goto :extout

-if "%1" == "--with-baseruby" goto :baseruby

-if "%1" == "BASERUBY" goto :baseruby

-if "%1" == "--path" goto :path

-if "%1" == "-h" goto :help

-if "%1" == "--help" goto :help

-  echo>>confargs.tmp 	%1 \

-  shift

-goto :loop

-:srcdir

-  echo>> ~tmp~.mak 	-Dsrcdir=%2 \

-  echo>>confargs.tmp 	--srcdir=%2 \

-  shift

-  shift

-goto :loop

-:prefix

-  echo>> ~tmp~.mak 	-Dprefix=%2 \

-  echo>>confargs.tmp 	%1=%2 \

-  shift

-  shift

-goto :loop

-:suffix

-  echo>>confargs.mk !ifndef RUBY_SUFFIX

-  echo>>confargs.mk RUBY_SUFFIX = %2

-  echo>>confargs.mk !endif

-  echo>>confargs.tmp 	%1=%2 \

-  shift

-  shift

-goto :loop

-:installname

-  echo>>confargs.mk !ifndef RUBY_INSTALL_NAME

-  echo>>confargs.mk RUBY_INSTALL_NAME = %2

-  echo>>confargs.mk !endif

-  echo>>confargs.tmp 	%1=%2 \

-  shift

-  shift

-goto :loop

-:soname

-  echo>>confargs.mk !ifndef RUBY_SO_NAME

-  echo>>confargs.mk RUBY_SO_NAME = %2

-  echo>>confargs.mk !endif

-  echo>>confargs.tmp 	%1=%2 \

-  shift

-  shift

-goto :loop

-:target

-  echo>> ~tmp~.mak 	%2 \

-  echo>>confargs.tmp 	--target=%2 \

-  shift

-  shift

-goto :loop

-:extstatic

-  echo>>confargs.mk !ifndef EXTSTATIC

-  echo>>confargs.mk EXTSTATIC = static

-  echo>>confargs.mk !endif

-  echo>>confargs.tmp 	%1 \

-  shift

-goto :loop

-:enable-rdoc

-  echo>>confargs.mk !ifndef RDOCTARGET

-  echo>>confargs.mk RDOCTARGET = install-doc

-  echo>>confargs.mk !endif

-  echo>>confargs.tmp 	%1 \

-  shift

-goto :loop

-:disable-rdoc

-  echo>>confargs.mk !ifndef RDOCTARGET

-  echo>>confargs.mk RDOCTARGET = install-nodoc

-  echo>>confargs.mk !endif

-  echo>>confargs.tmp 	%1 \

-  shift

-goto :loop

-:extout

-  echo>>confargs.mk !ifndef EXTOUT

-  echo>>confargs.mk EXTOUT = %2

-  echo>>confargs.mk !endif

-  echo>>confargs.tmp 	%1=%2 \

-  shift

-  shift

-goto :loop

-:baseruby

-  echo>>confargs.mk !ifndef BASERUBY

-  echo>>confargs.mk BASERUBY = %2

-  echo>>confargs.mk !endif

-  echo>>confargs.tmp 	%1=%2 \

-  shift

-  shift

-goto :loop

-:path

-  echo>>pathlist.tmp %2;\

-  echo>>confargs.tmp 	%1=%2 \

-  shift

-  shift

-goto :loop

-:help

-  echo Configuration:

-  echo   --help                  display this help

-  echo   --srcdir=DIR            find the sources in DIR [configure dir or `..']

-  echo Installation directories:

-  echo   --prefix=PREFIX         install files in PREFIX (ignored currently)

-  echo System types:

-  echo   --target=TARGET         configure for TARGET [i386-bccwin32]

-  echo Optional Package:

-  echo   --with-baseruby=RUBY    use RUBY as baseruby [ruby]

-  echo   --with-static-linked-ext link external modules statically

-  echo   --enable-install-doc    install rdoc indexes during install

-  del *.tmp

-  del ~tmp~.mak

-goto :exit

-:end

-echo>> ~tmp~.mak 	-Dbcc32dir=$(@D)

-if not exist confargs.tmp goto :noconfargs

-    echo>>confargs.mk configure_args = \

-    type>>confargs.mk confargs.tmp

-    echo.>>confargs.mk

-    echo>>confargs.mk ####

-:noconfargs

-if not exist pathlist.tmp goto :nopathlist

-    echo>>confargs.mk pathlist = \

-    type>>confargs.mk pathlist.tmp

-    echo.>>confargs.mk

-    echo>>confargs.mk ####

-    echo>>confargs.mk PATH = $(pathlist:;=/bin;)$(PATH)

-    echo>>confargs.mk INCLUDE = $(pathlist:;=/include;)

-    echo>>confargs.mk LIB = $(pathlist:;=/lib;)

-:nopathlist

-if exist confargs.mk copy confargs.mk ~setup~.mak > nul

-type>>~setup~.mak ~tmp~.mak

-del *.tmp > nul

-del ~tmp~.mak > nul

-make -s -f ~setup~.mak

-:exit

diff --git a/bcc32/mkexports.rb b/bcc32/mkexports.rb
deleted file mode 100755
index 888ab2e2a6..0000000000
--- a/bcc32/mkexports.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-#!./miniruby -s
-
-$:.unshift(File.expand_path("../..", __FILE__))
-require 'win32/mkexports'
-
-class Exports::Bcc < Exports
-  def forwarding(internal, export)
-    internal[/\A_?/]+export
-  end
-
-  def each_line(objs, &block)
-    objs.each do |obj|
-      opt = /\.(?:so|dll)\z/i =~ obj ? "-ee" : "-oiPUBDEF -oiPUBD32"
-      IO.foreach("|tdump -q #{opt} #{obj.tr('/', '\\')} < nul", &block)
-    end
-  end
-
-  def each_export(objs)
-    objdump(objs) do |l|
-      next unless /(?:PUBDEF|PUBD32|EXPORT)/ =~ l
-      yield $1 if /'(.*?)'/ =~ l
-    end
-    yield "_strcasecmp", "_stricmp"
-    yield "_strncasecmp", "_strnicmp"
-  end
-end
diff --git a/bcc32/setup.mak b/bcc32/setup.mak
deleted file mode 100644
index df2fd3c128..0000000000
--- a/bcc32/setup.mak
+++ /dev/null
@@ -1,179 +0,0 @@
-# -*- makefile -*-
-
-!if "$(srcdir)" != ""
-bcc32dir = $(srcdir)/bcc32
-!elseif "$(bcc32dir)" == "bcc32/"
-srcdir = .
-!elseif "$(bcc32dir:/bcc32/=)/bcc32/" == "$(bcc32dir)"
-srcdir = $(bcc32dir:/bcc32/=)
-!else
-srcdir = $(bcc32dir)/..
-!endif
-!ifndef prefix
-prefix = /usr
-!endif
-OS = bccwin32
-RT = $(OS)
-BANG = !
-APPEND = echo.>>$(MAKEFILE)
-!ifdef MAKEFILE
-MAKE = $(MAKE) -f $(MAKEFILE)
-!else
-MAKEFILE = Makefile
-!endif
-
-all: Makefile
-Makefile: -prologue- -generic- -epilogue-
-i386-$(OS): -prologue- -i386- -epilogue-
-i486-$(OS): -prologue- -i486- -epilogue-
-i586-$(OS): -prologue- -i586- -epilogue-
-i686-$(OS): -prologue- -i686- -epilogue-
-alpha-$(OS): -prologue- -alpha- -epilogue-
-
--prologue-: -basic-vars- -version- -system-vars-
-
--basic-vars-: nul
-	@echo Creating $(MAKEFILE)
-	@type > $(MAKEFILE) &&|
-\#\#\# Makefile for ruby $(OS) \#\#\#
-$(BANG)ifndef srcdir
-srcdir = $(srcdir:\=/)
-$(BANG)endif
-$(BANG)ifndef prefix
-prefix = $(prefix:\=/)
-$(BANG)endif
-$(BANG)if !defined(BASERUBY)
-!if defined(BASERUBY)
-BASERUBY = $(BASERUBY)
-!endif
-|
-!if !defined(BASERUBY)
-	@for %I in (ruby.exe) do @echo BASERUBY = "%~$$PATH:I" >> $(MAKEFILE)
-!endif
-	@type >> $(MAKEFILE) &&|
-$(BANG)endif
-|
-!if exist(confargs.mk)
-	@type confargs.mk >> $(MAKEFILE)
-	@del confargs.mk
-!endif
-
--system-vars-: -runtime- -bormm-
-
--bormm-: nul
-	@-ilink32 -q -Gn -x usebormm.lib > nul
-	@-if exist usebormm.tds $(APPEND) MEMLIB = usebormm.lib
-	@if exist usebormm.* del usebormm.*
-
--osname-: nul
-	@echo OS =  >>$(MAKEFILE)
-
--runtime-: nul
-	type > conftest.c &&|
-\#include <stdio.h>
-int main(){printf("");return 0;}
-|
-	bcc32 conftest.c cw32i.lib > nul
-	tdump conftest.exe < nul > conftest.i
-	grep "^Imports from CC" conftest.i > conftest.c
-	cpp32 -P- -DFile=\# -DImports=RTNAME -Dfrom== conftest.c > nul
-	$(MAKE) > nul -DBANG=$(BANG) -f &&|
--runtime-: nul
-$(BANG)include conftest.i
-RT = $$(RTNAME:.DLL=)
-OS = $$(RT:CC32=)
--runtime-:
-	del conftest.*
-$(BANG)if "$$(OS)" == "50"
-	echo OS = bccwin32 >> $(MAKEFILE)
-$(BANG)else
-	echo OS = bccwin32_$$(OS) >> $(MAKEFILE)
-$(BANG)endif
-|
-	@echo RT = $$(OS) >> $(MAKEFILE)
-
--version-: nul
-	@cpp32 -I$(srcdir) -P- -o$(MAKEFILE) > nul &&|
-\#define RUBY_REVISION 0
-\#include "version.h"
-MAJOR = RUBY_API_VERSION_MAJOR
-MINOR = RUBY_API_VERSION_MINOR
-TEENY = RUBY_API_VERSION_TEENY
-
-BORLANDC = __BORLANDC__
-|
-	@$(MAKE) > nul -DBANG=$(BANG) -f &&,
--version-: nul
-$(BANG)include $(MAKEFILE)
-$(BANG)include $(MAKEFILE).i
--version-:
-	@del $(MAKEFILE).i
-	@type >> $(MAKEFILE) &&|
-MAJOR = $$(MAJOR)
-MINOR = $$(MINOR)
-TEENY = $$(TEENY)
-BORLANDC = $$(BORLANDC)
-|
-,
-
--generic-: nul
-!if defined(PROCESSOR_ARCHITECTURE) ||  defined(PROCESSOR_LEVEL)
-	@type >> $(MAKEFILE) &&|
-!if defined(PROCESSOR_ARCHITECTURE)
-$(BANG)ifndef PROCESSOR_ARCHITECTURE
-PROCESSOR_ARCHITECTURE = $(PROCESSOR_ARCHITECTURE)
-$(BANG)endif
-!endif
-!if defined(PROCESSOR_LEVEL)
-$(BANG)ifndef PROCESSOR_LEVEL
-PROCESSOR_LEVEL = $(PROCESSOR_LEVEL)
-$(BANG)endif
-!endif
-|
-!endif
-
--alpha-: nul
-	@$(APPEND) !ifndef PROCESSOR_ARCHITECTURE
-	@$(APPEND) PROCESSOR_ARCHITECTURE = alpha
-	@$(APPEND) !endif
--ix86-: nul
-	@$(APPEND) !ifndef PROCESSOR_ARCHITECTURE
-	@$(APPEND) PROCESSOR_ARCHITECTURE = x86
-	@$(APPEND) !endif
-
--i386-: -ix86-
-	@$(APPEND) !ifndef PROCESSOR_LEVEL
-	@$(APPEND) PROCESSOR_LEVEL = 3
-	@$(APPEND) !endif
--i486-: -ix86-
-	@$(APPEND) !ifndef PROCESSOR_LEVEL
-	@$(APPEND) PROCESSOR_LEVEL = 4
-	@$(APPEND) !endif
--i586-: -ix86-
-	@$(APPEND) !ifndef PROCESSOR_LEVEL
-	@$(APPEND) PROCESSOR_LEVEL = 5
-	@$(APPEND) !endif
--i686-: -ix86-
-	@$(APPEND) !ifndef PROCESSOR_LEVEL
-	@$(APPEND) PROCESSOR_LEVEL = 6
-	@$(APPEND) !endif
-
--epilogue-: -encs-
-
--encs-: nul
-	@$(MAKE) -f $(srcdir)/win32/enc-setup.mak srcdir="$(srcdir)" MAKEFILE=$(MAKEFILE)
-
--epilogue-: nul
-	@type >> $(MAKEFILE) &&|
-
-\# RUBY_INSTALL_NAME = ruby
-\# RUBY_SO_NAME = $$(RT)-$$(RUBY_INSTALL_NAME)$$(MAJOR)$$(MINOR)
-\# CFLAGS = -q $$(DEBUGFLAGS) $$(OPTFLAGS) $$(PROCESSOR_FLAG) -w- -wsus -wcpt -wdup -wext -wrng -wrpt -wzdi
-\# CPPFLAGS = -I. -I$$(srcdir) -I$$(srcdir)/missing -DLIBRUBY_SO=\"$$(LIBRUBY_SO)\"
-\# STACK = 0x2000000
-\# LDFLAGS = -S:$$(STACK)
-\# RFLAGS = $$(iconinc)
-\# EXTLIBS = cw32.lib import32.lib user32.lib kernel32.lib
-$(BANG)include $$(srcdir)/bcc32/Makefile.sub
-|
-	@echo type "`$(MAKE)'" to make ruby for $(OS).
diff --git a/benchmark/bm_app_aobench.rb b/benchmark/bm_app_aobench.rb
new file mode 100644
index 0000000000..2bd6acfaf8
--- /dev/null
+++ b/benchmark/bm_app_aobench.rb
@@ -0,0 +1,291 @@
+# AO render benchmark
+# Original program (C) Syoyo Fujita in Javascript (and other languages)
+#      https://code.google.com/p/aobench/
+# Ruby(yarv2llvm) version by Hideki Miura
+#
+
+IMAGE_WIDTH = 256
+IMAGE_HEIGHT = 256
+NSUBSAMPLES = 2
+NAO_SAMPLES = 8
+
+class Vec
+  def initialize(x, y, z)
+    @x = x
+    @y = y
+    @z = z
+  end
+
+  attr_accessor :x, :y, :z
+
+  def vadd(b)
+    Vec.new(@x + b.x, @y + b.y, @z + b.z)
+  end
+
+  def vsub(b)
+    Vec.new(@x - b.x, @y - b.y, @z - b.z)
+  end
+
+  def vcross(b)
+    Vec.new(@y * b.z - @z * b.y,
+            @z * b.x - @x * b.z,
+            @x * b.y - @y * b.x)
+  end
+
+  def vdot(b)
+    @x * b.x + @y * b.y + @z * b.z
+  end
+
+  def vlength
+    Math.sqrt(@x * @x + @y * @y + @z * @z)
+  end
+
+  def vnormalize
+    len = vlength
+    v = Vec.new(@x, @y, @z)
+    if len > 1.0e-17 then
+      v.x = v.x / len
+      v.y = v.y / len
+      v.z = v.z / len
+    end
+    v
+  end
+end
+
+
+class Sphere
+  def initialize(center, radius)
+    @center = center
+    @radius = radius
+  end
+
+  attr_reader :center, :radius
+
+  def intersect(ray, isect)
+    rs = ray.org.vsub(@center)
+    b = rs.vdot(ray.dir)
+    c = rs.vdot(rs) - (@radius * @radius)
+    d = b * b - c
+    if d > 0.0 then
+      t = - b - Math.sqrt(d)
+
+      if t > 0.0 and t < isect.t then
+        isect.t = t
+        isect.hit = true
+        isect.pl = Vec.new(ray.org.x + ray.dir.x * t,
+                          ray.org.y + ray.dir.y * t,
+                          ray.org.z + ray.dir.z * t)
+        n = isect.pl.vsub(@center)
+        isect.n = n.vnormalize
+      else
+        0.0
+      end
+    end
+    nil
+  end
+end
+
+class Plane
+  def initialize(p, n)
+    @p = p
+    @n = n
+  end
+
+  def intersect(ray, isect)
+    d = -@p.vdot(@n)
+    v = ray.dir.vdot(@n)
+    v0 = v
+    if v < 0.0 then
+      v0 = -v
+    end
+    if v0 < 1.0e-17 then
+      return
+    end
+
+    t = -(ray.org.vdot(@n) + d) / v
+
+    if t > 0.0 and t < isect.t then
+      isect.hit = true
+      isect.t = t
+      isect.n = @n
+      isect.pl = Vec.new(ray.org.x + t * ray.dir.x,
+                        ray.org.y + t * ray.dir.y,
+                        ray.org.z + t * ray.dir.z)
+    end
+    nil
+  end
+end
+
+class Ray
+  def initialize(org, dir)
+    @org = org
+    @dir = dir
+  end
+
+  attr_accessor :org, :dir
+end
+
+class Isect
+  def initialize
+    @t = 10000000.0
+    @hit = false
+    @pl = Vec.new(0.0, 0.0, 0.0)
+    @n = Vec.new(0.0, 0.0, 0.0)
+  end
+
+  attr_accessor :t, :hit, :pl, :n
+end
+
+def clamp(f)
+  i = f * 255.5
+  if i > 255.0 then
+    i = 255.0
+  end
+  if i < 0.0 then
+    i = 0.0
+  end
+  i.to_i
+end
+
+def otherBasis(basis, n)
+  basis[2] = Vec.new(n.x, n.y, n.z)
+  basis[1] = Vec.new(0.0, 0.0, 0.0)
+
+  if n.x < 0.6 and n.x > -0.6 then
+    basis[1].x = 1.0
+  elsif n.y < 0.6 and n.y > -0.6 then
+    basis[1].y = 1.0
+  elsif n.z < 0.6 and n.z > -0.6 then
+    basis[1].z = 1.0
+  else
+    basis[1].x = 1.0
+  end
+
+  basis[0] = basis[1].vcross(basis[2])
+  basis[0] = basis[0].vnormalize
+
+  basis[1] = basis[2].vcross(basis[0])
+  basis[1] = basis[1].vnormalize
+end
+
+class Scene
+  def initialize
+    @spheres = Array.new
+    @spheres[0] = Sphere.new(Vec.new(-2.0, 0.0, -3.5), 0.5)
+    @spheres[1] = Sphere.new(Vec.new(-0.5, 0.0, -3.0), 0.5)
+    @spheres[2] = Sphere.new(Vec.new(1.0, 0.0, -2.2), 0.5)
+    @plane = Plane.new(Vec.new(0.0, -0.5, 0.0), Vec.new(0.0, 1.0, 0.0))
+  end
+
+  def ambient_occlusion(isect)
+    basis = Array.new
+    otherBasis(basis, isect.n)
+
+    ntheta    = NAO_SAMPLES
+    nphi      = NAO_SAMPLES
+    eps       = 0.0001
+    occlusion = 0.0
+
+    p0 = Vec.new(isect.pl.x + eps * isect.n.x,
+                isect.pl.y + eps * isect.n.y,
+                isect.pl.z + eps * isect.n.z)
+    nphi.times do |j|
+      ntheta.times do |i|
+        r = rand
+        phi = 2.0 * 3.14159265 * rand
+        x = Math.cos(phi) * Math.sqrt(1.0 - r)
+        y = Math.sin(phi) * Math.sqrt(1.0 - r)
+        z = Math.sqrt(r)
+
+        rx = x * basis[0].x + y * basis[1].x + z * basis[2].x
+        ry = x * basis[0].y + y * basis[1].y + z * basis[2].y
+        rz = x * basis[0].z + y * basis[1].z + z * basis[2].z
+
+        raydir = Vec.new(rx, ry, rz)
+        ray = Ray.new(p0, raydir)
+
+        occisect = Isect.new
+        @spheres[0].intersect(ray, occisect)
+        @spheres[1].intersect(ray, occisect)
+        @spheres[2].intersect(ray, occisect)
+        @plane.intersect(ray, occisect)
+        if occisect.hit then
+          occlusion = occlusion + 1.0
+        else
+          0.0
+        end
+      end
+    end
+
+    occlusion = (ntheta.to_f * nphi.to_f - occlusion) / (ntheta.to_f * nphi.to_f)
+
+    Vec.new(occlusion, occlusion, occlusion)
+  end
+
+  def render(w, h, nsubsamples)
+    cnt = 0
+    nsf = nsubsamples.to_f
+    h.times do |y|
+      w.times do |x|
+        rad = Vec.new(0.0, 0.0, 0.0)
+
+        # Subsampling
+        nsubsamples.times do |v|
+          nsubsamples.times do |u|
+
+            cnt = cnt + 1
+            wf = w.to_f
+            hf = h.to_f
+            xf = x.to_f
+            yf = y.to_f
+            uf = u.to_f
+            vf = v.to_f
+
+            px = (xf + (uf / nsf) - (wf / 2.0)) / (wf / 2.0)
+            py = -(yf + (vf / nsf) - (hf / 2.0)) / (hf / 2.0)
+
+            eye = Vec.new(px, py, -1.0).vnormalize
+
+            ray = Ray.new(Vec.new(0.0, 0.0, 0.0), eye)
+
+            isect = Isect.new
+            @spheres[0].intersect(ray, isect)
+            @spheres[1].intersect(ray, isect)
+            @spheres[2].intersect(ray, isect)
+            @plane.intersect(ray, isect)
+            if isect.hit then
+              col = ambient_occlusion(isect)
+              rad.x = rad.x + col.x
+              rad.y = rad.y + col.y
+              rad.z = rad.z + col.z
+            end
+          end
+        end
+
+        r = rad.x / (nsf * nsf)
+        g = rad.y / (nsf * nsf)
+        b = rad.z / (nsf * nsf)
+        printf("%c", clamp(r))
+        printf("%c", clamp(g))
+        printf("%c", clamp(b))
+      end
+      nil
+    end
+
+    nil
+  end
+end
+
+alias printf_orig printf
+def printf *args
+end
+
+# File.open("ao.ppm", "w") do |fp|
+  printf("P6\n")
+  printf("%d %d\n", IMAGE_WIDTH, IMAGE_HEIGHT)
+  printf("255\n", IMAGE_WIDTH, IMAGE_HEIGHT)
+  Scene.new.render(IMAGE_WIDTH, IMAGE_HEIGHT, NSUBSAMPLES)
+# end
+
+undef printf
+alias printf printf_orig
diff --git a/benchmark/bm_app_lc_fizzbuzz.rb b/benchmark/bm_app_lc_fizzbuzz.rb
new file mode 100644
index 0000000000..f09574bbeb
--- /dev/null
+++ b/benchmark/bm_app_lc_fizzbuzz.rb
@@ -0,0 +1,52 @@
+#
+# FizzBuzz program using only lambda calculus
+#
+# This program is quoted from
+#   "Understanding Computation" by Tom Stuart
+#   http://computationbook.com/
+#
+# You can understand why this program works fine by reading this book.
+#
+
+solution = -> k { -> f { -> f { -> x { f[-> y { x[x][y] }] }[-> x { f[-> y { x[x][y] }] }] }[-> f { -> l { -> x { -> g { -> b { b }[-> p { p[-> x { -> y { x } }] }[l]][x][-> y { g[f[-> l { -> p { p[-> x { -> y { y } }] }[-> p { p[-> x { -> y { y } }] }[l]] }[l]][x][g]][-> l { -> p { p[-> x { -> y { x } }] }[-> p { p[-> x { -> y { y } }] }[l]] }[l]][y] }] } } } }][k][-> x { -> y { -> f { f[x][y] } } }[-> x { -> y { x } }][-> x { -> y { x } }]][-> l { -> x { -> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[l][f[x]] } }] } }[-> f { -> x { f[-> y { x[x][y] }] }[-> x { f[-> y { x[x][y] }] }] }[-> f { -> m { -> n { -> b { b }[-> m { -> n { -> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]] } }[m][n]][-> x { -> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[f[-> n { -> p { -> x { p[n[p][x]] } } }[m]][n]][m][x] }][-> x { -> y { -> f { f[x][y] } } }[-> x { -> y { x } }][-> x { -> y { x } }]] } } }][-> p { -> x { p[x] } }][-> p { -> x { p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[x]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]] } }]][-> n { -> b { b }[-> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> f { -> x { f[-> y { x[x][y] }] }[-> x { f[-> y { x[x][y] }] }] }[-> f { -> m { -> n { -> b { b }[-> m { -> n { -> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]] } }[n][m]][-> x { f[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]][n][x] }][m] } } }][n][-> p { -> x { p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[x]]]]]]]]]]]]]]] } }]]][-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> x { -> y { -> f { f[x][y] } } }[-> x { -> y { x } }][-> x { -> y { x } }]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]][-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]][-> b { b }[-> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> f { -> x { f[-> y { x[x][y] }] }[-> x { f[-> y { x[x][y] }] }] }[-> f { -> m { -> n { -> b { b }[-> m { -> n { -> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]] } }[n][m]][-> x { f[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]][n][x] }][m] } } }][n][-> p { -> x { p[p[p[x]]] } }]]][-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> x { -> y { -> f { f[x][y] } } }[-> x { -> y { x } }][-> x { -> y { x } }]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]][-> b { b }[-> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> f { -> x { f[-> y { x[x][y] }] }[-> x { f[-> y { x[x][y] }] }] }[-> f { -> m { -> n { -> b { b }[-> m { -> n { -> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]] } }[n][m]][-> x { f[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]][n][x] }][m] } } }][n][-> p { -> x { p[p[p[p[p[x]]]]] } }]]][-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> x { -> y { -> f { f[x][y] } } }[-> x { -> y { x } }][-> x { -> y { x } }]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]][-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]][-> f { -> x { f[-> y { x[x][y] }] }[-> x { f[-> y { x[x][y] }] }] }[-> f { -> n { -> l { -> x { -> f { -> x { f[-> y { x[x][y] }] }[-> x { f[-> y { x[x][y] }] }] }[-> f { -> l { -> x { -> g { -> b { b }[-> p { p[-> x { -> y { x } }] }[l]][x][-> y { g[f[-> l { -> p { p[-> x { -> y { y } }] }[-> p { p[-> x { -> y { y } }] }[l]] }[l]][x][g]][-> l { -> p { p[-> x { -> y { x } }] }[-> p { p[-> x { -> y { y } }] }[l]] }[l]][y] }] } } } }][l][-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> x { -> y { -> f { f[x][y] } } }[-> x { -> y { x } }][-> x { -> y { x } }]][x]][-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }] } }[-> b { b }[-> m { -> n { -> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]] } }[n][-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]][-> x { -> y { -> f { f[x][y] } } }[-> x { -> y { x } }][-> x { -> y { x } }]][-> x { f[-> f { -> x { f[-> y { x[x][y] }] }[-> x { f[-> y { x[x][y] }] }] }[-> f { -> m { -> n { -> b { b }[-> m { -> n { -> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]] } }[n][m]][-> x { -> n { -> p { -> x { p[n[p][x]] } } }[f[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]][n]][x] }][-> p { -> x { x } }] } } }][n][-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]][x] }]][-> f { -> x { f[-> y { x[x][y] }] }[-> x { f[-> y { x[x][y] }] }] }[-> f { -> m { -> n { -> b { b }[-> m { -> n { -> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]] } }[n][m]][-> x { f[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]][n][x] }][m] } } }][n][-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]] } }][n]]]] }]
+
+FIRST     = -> l { LEFT[RIGHT[l]] }
+IF        = -> b { b }
+LEFT      = -> p { p[-> x { -> y { x } } ] }
+RIGHT     = -> p { p[-> x { -> y { y } } ] }
+IS_EMPTY  = LEFT
+REST      = -> l { RIGHT[RIGHT[l]] }
+
+def to_integer(proc)
+  proc[-> n { n + 1 }][0]
+end
+
+def to_boolean(proc)
+  IF[proc][true][false]
+end
+
+def to_array(proc)
+  array = []
+
+  until to_boolean(IS_EMPTY[proc])
+    array.push(FIRST[proc])
+    proc = REST[proc]
+  end
+
+  array
+end
+
+def to_char(c)
+  '0123456789BFiuz'.slice(to_integer(c))
+end
+
+def to_string(s)
+  to_array(s).map { |c| to_char(c) }.join
+end
+
+answer = to_array(solution).map do |p|
+  to_string(p)
+end
+
+answer_ary = answer.to_a
+# puts answer_ary
diff --git a/benchmark/bm_array_shift.rb b/benchmark/bm_array_shift.rb
new file mode 100644
index 0000000000..798bb9e3f4
--- /dev/null
+++ b/benchmark/bm_array_shift.rb
@@ -0,0 +1,14 @@
+require 'benchmark'
+
+Benchmark.bm do |x|
+  [10_000,1_000_000,100_000_000].each do |n|
+    ary = Array.new(n,0)
+    GC.start
+    x.report("#{n}:shift"){ ary.shift }
+    (0..4).each do |i|
+      ary = Array.new(n,0)
+      GC.start
+      x.report("#{n}:shift(#{i})"){ ary.shift(i) }
+    end
+  end
+end
diff --git a/benchmark/bm_hash_aref_dsym.rb b/benchmark/bm_hash_aref_dsym.rb
new file mode 100644
index 0000000000..af4f8c36d4
--- /dev/null
+++ b/benchmark/bm_hash_aref_dsym.rb
@@ -0,0 +1,4 @@
+h = {}
+syms = ('a'..'z').map { |s| s.to_sym }
+syms.each { |s| h[s] = 1 }
+200_000.times { syms.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_aref_dsym_long.rb b/benchmark/bm_hash_aref_dsym_long.rb
new file mode 100644
index 0000000000..9d7759379e
--- /dev/null
+++ b/benchmark/bm_hash_aref_dsym_long.rb
@@ -0,0 +1,21 @@
+# [ruby-core:70129] [Bug #11396]
+collection_size = 200000
+sample_size = 10000
+
+values = (1..collection_size).to_a.map do |x|
+  "THIS IS A LONGER STRING THAT IS ALSO UNIQUE #{x}"
+end
+
+symbol_hash = {}
+
+values.each do |x|
+  symbol_hash[x.to_sym] = 1
+end
+
+# use the same samples each time to minimize deviations
+rng = Random.new(0)
+symbol_sample_array = values.sample(sample_size, random: rng).map(&:to_sym)
+
+3000.times do
+  symbol_sample_array.each { |x| symbol_hash[x] }
+end
diff --git a/benchmark/bm_hash_aref_fix.rb b/benchmark/bm_hash_aref_fix.rb
new file mode 100644
index 0000000000..1346890582
--- /dev/null
+++ b/benchmark/bm_hash_aref_fix.rb
@@ -0,0 +1,4 @@
+h = {}
+nums = (1..26).to_a
+nums.each { |i| h[i] = i }
+200_000.times { nums.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_aref_flo.rb b/benchmark/bm_hash_aref_flo.rb
new file mode 100644
index 0000000000..2217274c82
--- /dev/null
+++ b/benchmark/bm_hash_aref_flo.rb
@@ -0,0 +1,4 @@
+h = {}
+strs = [*1..10000].map! {|i| i.fdiv(10)}
+strs.each { |s| h[s] = s }
+50.times { strs.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_aref_miss.rb b/benchmark/bm_hash_aref_miss.rb
new file mode 100644
index 0000000000..b0913dd4bb
--- /dev/null
+++ b/benchmark/bm_hash_aref_miss.rb
@@ -0,0 +1,5 @@
+h = {}
+strs = ('a'..'z').to_a.map!(&:freeze)
+strs.each { |s| h[s] = s }
+strs = ('A'..'Z').to_a
+200_000.times { strs.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_aref_str.rb b/benchmark/bm_hash_aref_str.rb
new file mode 100644
index 0000000000..19439b061b
--- /dev/null
+++ b/benchmark/bm_hash_aref_str.rb
@@ -0,0 +1,4 @@
+h = {}
+strs = ('a'..'z').to_a.map!(&:freeze)
+strs.each { |s| h[s] = s }
+200_000.times { strs.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_aref_sym.rb b/benchmark/bm_hash_aref_sym.rb
new file mode 100644
index 0000000000..f75d163fe6
--- /dev/null
+++ b/benchmark/bm_hash_aref_sym.rb
@@ -0,0 +1,9 @@
+h = {}
+syms = ('a'..'z').to_a
+begin
+  syms = eval("%i[#{syms.join(' ')}]")
+rescue SyntaxError # <= 1.9.3
+  syms.map!(&:to_sym)
+end
+syms.each { |s| h[s] = s }
+200_000.times { syms.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_aref_sym_long.rb b/benchmark/bm_hash_aref_sym_long.rb
new file mode 100644
index 0000000000..9dab8df7be
--- /dev/null
+++ b/benchmark/bm_hash_aref_sym_long.rb
@@ -0,0 +1,13 @@
+h = {}
+syms = %w[puts warn syswrite write stat bacon lettuce tomato
+some symbols in this array may already be interned  others should not be
+hash browns make good breakfast but not cooked using prime numbers
+shift for division entries delete_if keys exist?
+]
+begin
+  syms = eval("%i[#{syms.join(' ')}]")
+rescue SyntaxError # <= 1.9.3
+  syms.map!(&:to_sym)
+end
+syms.each { |s| h[s] = s }
+200_000.times { syms.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_flatten.rb b/benchmark/bm_hash_flatten.rb
new file mode 100644
index 0000000000..e944aae9f2
--- /dev/null
+++ b/benchmark/bm_hash_flatten.rb
@@ -0,0 +1,9 @@
+h = {}
+
+10000.times do |i|
+  h[i] = nil
+end
+
+1000.times do
+  h.flatten
+end
diff --git a/benchmark/bm_hash_ident_flo.rb b/benchmark/bm_hash_ident_flo.rb
new file mode 100644
index 0000000000..0c7edfed3e
--- /dev/null
+++ b/benchmark/bm_hash_ident_flo.rb
@@ -0,0 +1,4 @@
+h = {}.compare_by_identity
+strs = (1..10000).to_a.map!(&:to_f)
+strs.each { |s| h[s] = s }
+50.times { strs.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_ident_num.rb b/benchmark/bm_hash_ident_num.rb
new file mode 100644
index 0000000000..b226736c6f
--- /dev/null
+++ b/benchmark/bm_hash_ident_num.rb
@@ -0,0 +1,4 @@
+h = {}.compare_by_identity
+nums = (1..26).to_a
+nums.each { |n| h[n] = n }
+200_000.times { nums.each { |n| h[n] } }
diff --git a/benchmark/bm_hash_ident_obj.rb b/benchmark/bm_hash_ident_obj.rb
new file mode 100644
index 0000000000..4b3b58edec
--- /dev/null
+++ b/benchmark/bm_hash_ident_obj.rb
@@ -0,0 +1,4 @@
+h = {}.compare_by_identity
+objs = 26.times.map { Object.new }
+objs.each { |o| h[o] = o }
+200_000.times { objs.each { |o| h[o] } }
diff --git a/benchmark/bm_hash_ident_str.rb b/benchmark/bm_hash_ident_str.rb
new file mode 100644
index 0000000000..8582b38e31
--- /dev/null
+++ b/benchmark/bm_hash_ident_str.rb
@@ -0,0 +1,4 @@
+h = {}.compare_by_identity
+strs = ('a'..'z').to_a
+strs.each { |s| h[s] = s }
+200_000.times { strs.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_ident_sym.rb b/benchmark/bm_hash_ident_sym.rb
new file mode 100644
index 0000000000..4c81e3d28e
--- /dev/null
+++ b/benchmark/bm_hash_ident_sym.rb
@@ -0,0 +1,4 @@
+h = {}.compare_by_identity
+syms = ('a'..'z').to_a.map(&:to_sym)
+syms.each { |s| h[s] = s }
+200_000.times { syms.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_keys.rb b/benchmark/bm_hash_keys.rb
new file mode 100644
index 0000000000..6863cd01f9
--- /dev/null
+++ b/benchmark/bm_hash_keys.rb
@@ -0,0 +1,9 @@
+h = {}
+
+10000.times do |i|
+  h[i] = nil
+end
+
+5000.times do
+  h.keys
+end
diff --git a/benchmark/bm_hash_shift.rb b/benchmark/bm_hash_shift.rb
new file mode 100644
index 0000000000..a645671a5b
--- /dev/null
+++ b/benchmark/bm_hash_shift.rb
@@ -0,0 +1,10 @@
+h = {}
+
+10000.times do |i|
+  h[i] = nil
+end
+
+50000.times do
+  k, v = h.shift
+  h[k] = v
+end
diff --git a/benchmark/bm_hash_shift_u16.rb b/benchmark/bm_hash_shift_u16.rb
new file mode 100644
index 0000000000..ec800d0342
--- /dev/null
+++ b/benchmark/bm_hash_shift_u16.rb
@@ -0,0 +1,10 @@
+h = {}
+
+(16384..65536).each do |i|
+  h[i] = nil
+end
+
+300000.times do
+  k, v = h.shift
+  h[k] = v
+end
diff --git a/benchmark/bm_hash_shift_u24.rb b/benchmark/bm_hash_shift_u24.rb
new file mode 100644
index 0000000000..de4e0fa696
--- /dev/null
+++ b/benchmark/bm_hash_shift_u24.rb
@@ -0,0 +1,10 @@
+h = {}
+
+(0xff4000..0xffffff).each do |i|
+  h[i] = nil
+end
+
+300000.times do
+  k, v = h.shift
+  h[k] = v
+end
diff --git a/benchmark/bm_hash_shift_u32.rb b/benchmark/bm_hash_shift_u32.rb
new file mode 100644
index 0000000000..656aa55583
--- /dev/null
+++ b/benchmark/bm_hash_shift_u32.rb
@@ -0,0 +1,10 @@
+h = {}
+
+(0xffff4000..0xffffffff).each do |i|
+  h[i] = nil
+end
+
+300000.times do
+  k, v = h.shift
+  h[k] = v
+end
diff --git a/benchmark/bm_hash_to_proc.rb b/benchmark/bm_hash_to_proc.rb
new file mode 100644
index 0000000000..2b675bf509
--- /dev/null
+++ b/benchmark/bm_hash_to_proc.rb
@@ -0,0 +1,9 @@
+h = {}
+
+10000.times do |i|
+  h[i] = nil
+end
+
+5000.times do |i|
+  [i].map(&h)
+end
diff --git a/benchmark/bm_hash_values.rb b/benchmark/bm_hash_values.rb
new file mode 100644
index 0000000000..069441302f
--- /dev/null
+++ b/benchmark/bm_hash_values.rb
@@ -0,0 +1,9 @@
+h = {}
+
+10000.times do |i|
+  h[i] = nil
+end
+
+5000.times do
+  h.values
+end
diff --git a/benchmark/bm_io_nonblock_noex.rb b/benchmark/bm_io_nonblock_noex.rb
new file mode 100644
index 0000000000..da9357fdc6
--- /dev/null
+++ b/benchmark/bm_io_nonblock_noex.rb
@@ -0,0 +1,22 @@
+nr = 1_000_000
+i = 0
+msg = '.'
+buf = '.'
+noex = { exception: false }
+begin
+  r, w = IO.pipe
+  while i < nr
+    i += 1
+    w.write_nonblock(msg, noex)
+    r.read_nonblock(1, buf, noex)
+  end
+rescue ArgumentError # old Rubies
+  while i < nr
+    i += 1
+    w.write_nonblock(msg)
+    r.read_nonblock(1, buf)
+  end
+ensure
+  r.close
+  w.close
+end
diff --git a/benchmark/bm_io_nonblock_noex2.rb b/benchmark/bm_io_nonblock_noex2.rb
new file mode 100644
index 0000000000..56819d049b
--- /dev/null
+++ b/benchmark/bm_io_nonblock_noex2.rb
@@ -0,0 +1,21 @@
+nr = 1_000_000
+i = 0
+msg = '.'
+buf = '.'
+begin
+  r, w = IO.pipe
+  while i < nr
+    i += 1
+    w.write_nonblock(msg, exception: false)
+    r.read_nonblock(1, buf, exception: false)
+  end
+rescue ArgumentError # old Rubies
+  while i < nr
+    i += 1
+    w.write_nonblock(msg)
+    r.read_nonblock(1, buf)
+  end
+ensure
+  r.close
+  w.close
+end
diff --git a/benchmark/bm_marshal_dump_flo.rb b/benchmark/bm_marshal_dump_flo.rb
new file mode 100644
index 0000000000..9b8d0c6afb
--- /dev/null
+++ b/benchmark/bm_marshal_dump_flo.rb
@@ -0,0 +1,2 @@
+bug10761 = 10000.times.map { |x| x.to_f }
+100.times { Marshal.dump(bug10761) }
diff --git a/benchmark/bm_marshal_dump_load_geniv.rb b/benchmark/bm_marshal_dump_load_geniv.rb
new file mode 100644
index 0000000000..8252ad90fa
--- /dev/null
+++ b/benchmark/bm_marshal_dump_load_geniv.rb
@@ -0,0 +1,10 @@
+a = ''
+a.instance_eval do
+  @a = :a
+  @b = :b
+  @c = :c
+end
+100000.times do
+  a = Marshal.load(Marshal.dump(a))
+end
+#p(a.instance_eval { @a == :a && @b == :b && @c == :c })
diff --git a/benchmark/bm_marshal_dump_load_time.rb b/benchmark/bm_marshal_dump_load_time.rb
new file mode 100644
index 0000000000..e29743b791
--- /dev/null
+++ b/benchmark/bm_marshal_dump_load_time.rb
@@ -0,0 +1 @@
+100000.times { Marshal.load(Marshal.dump(Time.now)) }
diff --git a/benchmark/bm_require.rb b/benchmark/bm_require.rb
new file mode 100644
index 0000000000..b8abc88f41
--- /dev/null
+++ b/benchmark/bm_require.rb
@@ -0,0 +1,7 @@
+$:.push File.join(File.dirname(__FILE__), "bm_require.data")
+
+1.upto(10000) do |i|
+  require "c#{i}"
+end
+
+$:.pop
diff --git a/benchmark/bm_require_thread.rb b/benchmark/bm_require_thread.rb
new file mode 100644
index 0000000000..e54db6c6e5
--- /dev/null
+++ b/benchmark/bm_require_thread.rb
@@ -0,0 +1,15 @@
+$:.push File.join(File.dirname(__FILE__), "bm_require.data")
+
+i=0
+t = Thread.new do
+  while true
+    i = i+1 # dummy loop
+  end
+end
+
+1.upto(100) do |i|
+  require "c#{i}"
+end
+
+$:.pop
+t.kill
diff --git a/benchmark/bm_securerandom.rb b/benchmark/bm_securerandom.rb
new file mode 100644
index 0000000000..a082ea6d5b
--- /dev/null
+++ b/benchmark/bm_securerandom.rb
@@ -0,0 +1,5 @@
+require "securerandom"
+
+20_0000.times do
+  SecureRandom.random_number(100)
+end
diff --git a/benchmark/bm_so_binary_trees.rb b/benchmark/bm_so_binary_trees.rb
index 6a26465578..b1693e4109 100644
--- a/benchmark/bm_so_binary_trees.rb
+++ b/benchmark/bm_so_binary_trees.rb
@@ -4,7 +4,9 @@
 # contributed by Jesse Millikan
 
 # disable output
-def STDOUT.write_ *args
+alias puts_orig puts
+def puts str
+  # disable puts
 end
 
 def item_check(tree)
@@ -25,7 +27,7 @@ def bottom_up_tree(item, depth)
  end
 end
 
-max_depth = 12 # 16 # ARGV[0].to_i
+max_depth = 16 # ARGV[0].to_i
 min_depth = 4
 
 max_depth = min_depth + 2 if min_depth + 2 > max_depth
@@ -55,3 +57,6 @@ min_depth.step(max_depth + 1, 2) do |depth|
 end
 
 puts "long lived tree of depth #{max_depth}\t check: #{item_check(long_lived_tree)}"
+
+undef puts
+alias puts puts_orig
diff --git a/benchmark/bm_so_meteor_contest.rb b/benchmark/bm_so_meteor_contest.rb
index 99cf6a91cc..17e9c046a8 100644
--- a/benchmark/bm_so_meteor_contest.rb
+++ b/benchmark/bm_so_meteor_contest.rb
@@ -32,7 +32,7 @@ class Rotation
     @start_masks = Array.new(60)
 
     # create the rotational masks by placing the base mask at the location and seeing if
-    # 1) it overlaps the boundries and 2) it produces a prunable board.  if either of these
+    # 1) it overlaps the boundaries and 2) it produces a prunable board.  if either of these
     # is true the piece cannot be placed
     0.upto(59) do | offset |
       mask = is_even(offset) ? (@even_mask << offset) : (@odd_mask << offset)
@@ -326,9 +326,9 @@ end
 #  The exact procedure is described in-code
 def prunable( board, location, slotting = false)
   collectors = []
-  # loop accross the rows
+  # loop across the rows
   (location / 6).to_i.upto(9) do | row_on |
-    # obtain a set of regions representing the bits of the curent row.
+    # obtain a set of regions representing the bits of the current row.
     regions = $regions[(board >> (row_on * 6)) & 0b11111]
     converter = $converter[row_on]
 
@@ -370,7 +370,7 @@ def prunable( board, location, slotting = false)
     end
 
     # check the existing collectors, if any collector overlapped no bits in the region its [2] value will
-    # be zero.  The size of any such reaason is tested if it is not a muliple of five true is returned since
+    # be zero.  The size of any such reaason is tested if it is not a multiple of five true is returned since
     # the board is prunable.  if it is a multiple of five it is removed.
     # Collector that are still active have a new adjacent value [0] set based n the matched bits
     # and have [2] cleared out for the next cycle.
@@ -382,7 +382,7 @@ def prunable( board, location, slotting = false)
           collectors[collector_num] = nil
         else
           # if a collector matches all bits in the row then we can return unprunable early for the
-          # follwing reasons:
+          # following reasons:
           #    1) there can be no more unavailable bits bince we fill from the top left downward
           #    2) all previous regions have been closed or joined so only this region can fail
           #    3) this region must be good since there can never be only 1 region that is nuot
@@ -467,7 +467,7 @@ def find_top( rotation_skip)
 end
 
 # the normail find routine, iterates through the available pieces, checks all rotations at the current location
-# and adds any boards found.  depth is acheived via recursion.  the overall approach is described
+# and adds any boards found.  depth is achieved via recursion.  the overall approach is described
 # here: http://www-128.ibm.com/developerworks/java/library/j-javaopt/
 # parameters:
 #  start_location -- where to start looking for place for the next piece at
@@ -526,7 +526,7 @@ def save( board_string)
     @boards_found += 1
 
     # the exit motif is a time saver.  Ideally the function should return, but those tests
-    # take noticable time (performance).
+    # take noticeable time (performance).
     if (@boards_found == @stop_count) then
       print_results
       exit(0)
diff --git a/benchmark/bm_vm1_gc_short_lived.rb b/benchmark/bm_vm1_gc_short_lived.rb
new file mode 100644
index 0000000000..e78bca5668
--- /dev/null
+++ b/benchmark/bm_vm1_gc_short_lived.rb
@@ -0,0 +1,10 @@
+i = 0
+while i<30_000_000 # while loop 1
+  a = '' # short-lived String
+  b = ''
+  c = ''
+  d = ''
+  e = ''
+  f = ''
+  i+=1
+end
diff --git a/benchmark/bm_vm1_gc_short_with_complex_long.rb b/benchmark/bm_vm1_gc_short_with_complex_long.rb
new file mode 100644
index 0000000000..b66052dee0
--- /dev/null
+++ b/benchmark/bm_vm1_gc_short_with_complex_long.rb
@@ -0,0 +1,27 @@
+def nested_hash h, n
+  if n == 0
+    ''
+  else
+    10.times{
+      h[Object.new] = nested_hash(h, n-1)
+    }
+  end
+end
+
+long_lived = Hash.new
+nested_hash long_lived, 6
+
+GC.start
+GC.start
+
+i = 0
+while i<30_000_000 # while loop 1
+  a = '' # short-lived String
+  b = ''
+  c = ''
+  d = ''
+  e = ''
+  f = ''
+  i+=1
+end
+
diff --git a/benchmark/bm_vm1_gc_short_with_long.rb b/benchmark/bm_vm1_gc_short_with_long.rb
new file mode 100644
index 0000000000..298dbc845b
--- /dev/null
+++ b/benchmark/bm_vm1_gc_short_with_long.rb
@@ -0,0 +1,13 @@
+long_lived = Array.new(1_000_000){|i| "#{i}"}
+GC.start
+GC.start
+i = 0
+while i<30_000_000 # while loop 1
+  a = '' # short-lived String
+  b = ''
+  c = ''
+  d = ''
+  e = ''
+  f = ''
+  i+=1
+end
diff --git a/benchmark/bm_vm1_gc_short_with_symbol.rb b/benchmark/bm_vm1_gc_short_with_symbol.rb
new file mode 100644
index 0000000000..6b15c1b7bf
--- /dev/null
+++ b/benchmark/bm_vm1_gc_short_with_symbol.rb
@@ -0,0 +1,15 @@
+# make many symbols
+50_000.times{|i| sym = "sym#{i}".to_sym}
+GC.start
+GC.start
+
+i = 0
+while i<30_000_000 # while loop 1
+  a = '' # short-lived String
+  b = ''
+  c = ''
+  d = ''
+  e = ''
+  f = ''
+  i+=1
+end
diff --git a/benchmark/bm_vm1_gc_wb_ary.rb b/benchmark/bm_vm1_gc_wb_ary.rb
new file mode 100644
index 0000000000..881528845b
--- /dev/null
+++ b/benchmark/bm_vm1_gc_wb_ary.rb
@@ -0,0 +1,12 @@
+short_lived_ary = []
+
+if RUBY_VERSION >= "2.2.0"
+  GC.start(full_mark: false, immediate_mark: true, lazy_sweep: false)
+end
+
+i = 0
+short_lived = ''
+while i<30_000_000 # while loop 1
+  short_lived_ary[0] = short_lived # write barrier
+  i+=1
+end
diff --git a/benchmark/bm_vm1_gc_wb_ary_promoted.rb b/benchmark/bm_vm1_gc_wb_ary_promoted.rb
new file mode 100644
index 0000000000..3c8279c956
--- /dev/null
+++ b/benchmark/bm_vm1_gc_wb_ary_promoted.rb
@@ -0,0 +1,14 @@
+long_lived = []
+
+if RUBY_VERSION > "2.2.0"
+  3.times{ GC.start(full_mark: false, immediate_mark: true, lazy_sweep: false) }
+elsif
+  GC.start
+end
+
+i = 0
+short_lived = ''
+while i<30_000_000 # while loop 1
+  long_lived[0] = short_lived # write barrier
+  i+=1
+end
diff --git a/benchmark/bm_vm1_gc_wb_obj.rb b/benchmark/bm_vm1_gc_wb_obj.rb
new file mode 100644
index 0000000000..a4067af36b
--- /dev/null
+++ b/benchmark/bm_vm1_gc_wb_obj.rb
@@ -0,0 +1,15 @@
+class C
+  attr_accessor :foo
+end
+short_lived_obj = C.new
+
+if RUBY_VERSION >= "2.2.0"
+  GC.start(full_mark: false, immediate_mark: true, lazy_sweep: false)
+end
+
+i = 0
+short_lived = ''
+while i<30_000_000 # while loop 1
+  short_lived_obj.foo = short_lived # write barrier
+  i+=1
+end
diff --git a/benchmark/bm_vm1_gc_wb_obj_promoted.rb b/benchmark/bm_vm1_gc_wb_obj_promoted.rb
new file mode 100644
index 0000000000..eee07a0248
--- /dev/null
+++ b/benchmark/bm_vm1_gc_wb_obj_promoted.rb
@@ -0,0 +1,17 @@
+class C
+  attr_accessor :foo
+end
+long_lived = C.new
+
+if RUBY_VERSION >= "2.2.0"
+  3.times{ GC.start(full_mark: false, immediate_mark: true, lazy_sweep: false) }
+elsif
+  GC.start
+end
+
+i = 0
+short_lived = ''
+while i<30_000_000 # while loop 1
+  long_lived.foo = short_lived # write barrier
+  i+=1
+end
diff --git a/benchmark/bm_vm2_case_lit.rb b/benchmark/bm_vm2_case_lit.rb
new file mode 100644
index 0000000000..c62b294e0e
--- /dev/null
+++ b/benchmark/bm_vm2_case_lit.rb
@@ -0,0 +1,19 @@
+i = 0
+@ret = [ "foo", true, false, :sym, 6, nil, 0.1, 0xffffffffffffffff ]
+def foo(i)
+  @ret[i % @ret.size]
+end
+
+while i<6_000_000 # while loop 2
+  case foo(i)
+  when "foo" then :foo
+  when true then true
+  when false then false
+  when :sym then :sym
+  when 6 then :fix
+  when nil then nil
+  when 0.1 then :float
+  when 0xffffffffffffffff then :big
+  end
+  i += 1
+end
diff --git a/benchmark/bm_vm2_newlambda.rb b/benchmark/bm_vm2_newlambda.rb
new file mode 100644
index 0000000000..6422c9b0d0
--- /dev/null
+++ b/benchmark/bm_vm2_newlambda.rb
@@ -0,0 +1,5 @@
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  lambda {}
+end
diff --git a/benchmark/bm_vm2_string_literal.rb b/benchmark/bm_vm2_string_literal.rb
new file mode 100644
index 0000000000..1d73036849
--- /dev/null
+++ b/benchmark/bm_vm2_string_literal.rb
@@ -0,0 +1,5 @@
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+end
diff --git a/benchmark/bm_vm2_struct_big_aref_hi.rb b/benchmark/bm_vm2_struct_big_aref_hi.rb
new file mode 100644
index 0000000000..22cb26b0a5
--- /dev/null
+++ b/benchmark/bm_vm2_struct_big_aref_hi.rb
@@ -0,0 +1,7 @@
+s = Struct.new(*('a'..'z').map { |x| x.to_sym })
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x.z # x[25]
+end
diff --git a/benchmark/bm_vm2_struct_big_aref_lo.rb b/benchmark/bm_vm2_struct_big_aref_lo.rb
new file mode 100644
index 0000000000..5e61a7087e
--- /dev/null
+++ b/benchmark/bm_vm2_struct_big_aref_lo.rb
@@ -0,0 +1,7 @@
+s = Struct.new(*('a'..'z').map { |x| x.to_sym })
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x.k # x[10]
+end
diff --git a/benchmark/bm_vm2_struct_big_aset.rb b/benchmark/bm_vm2_struct_big_aset.rb
new file mode 100644
index 0000000000..5a1c3d16f3
--- /dev/null
+++ b/benchmark/bm_vm2_struct_big_aset.rb
@@ -0,0 +1,7 @@
+s = Struct.new(*('a'..'z').map { |x| x.to_sym })
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x.k = i # x[10] = i
+end
diff --git a/benchmark/bm_vm2_struct_big_href_hi.rb b/benchmark/bm_vm2_struct_big_href_hi.rb
new file mode 100644
index 0000000000..fff940a80a
--- /dev/null
+++ b/benchmark/bm_vm2_struct_big_href_hi.rb
@@ -0,0 +1,7 @@
+s = Struct.new(*('a'..'z').map { |x| x.to_sym })
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x[:z]
+end
diff --git a/benchmark/bm_vm2_struct_big_href_lo.rb b/benchmark/bm_vm2_struct_big_href_lo.rb
new file mode 100644
index 0000000000..5e4085d59d
--- /dev/null
+++ b/benchmark/bm_vm2_struct_big_href_lo.rb
@@ -0,0 +1,7 @@
+s = Struct.new(*('a'..'z').map { |x| x.to_sym })
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x[:k]
+end
diff --git a/benchmark/bm_vm2_struct_big_hset.rb b/benchmark/bm_vm2_struct_big_hset.rb
new file mode 100644
index 0000000000..9c0cee4141
--- /dev/null
+++ b/benchmark/bm_vm2_struct_big_hset.rb
@@ -0,0 +1,7 @@
+s = Struct.new(*('a'..'z').map { |x| x.to_sym })
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x[:k] = i
+end
diff --git a/benchmark/bm_vm2_struct_small_aref.rb b/benchmark/bm_vm2_struct_small_aref.rb
new file mode 100644
index 0000000000..8eaa555b41
--- /dev/null
+++ b/benchmark/bm_vm2_struct_small_aref.rb
@@ -0,0 +1,7 @@
+s = Struct.new(:a, :b, :c)
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x.a
+end
diff --git a/benchmark/bm_vm2_struct_small_aset.rb b/benchmark/bm_vm2_struct_small_aset.rb
new file mode 100644
index 0000000000..ecd0f95669
--- /dev/null
+++ b/benchmark/bm_vm2_struct_small_aset.rb
@@ -0,0 +1,7 @@
+s = Struct.new(:a, :b, :c)
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x.a = i
+end
diff --git a/benchmark/bm_vm2_struct_small_href.rb b/benchmark/bm_vm2_struct_small_href.rb
new file mode 100644
index 0000000000..2c88fee6bf
--- /dev/null
+++ b/benchmark/bm_vm2_struct_small_href.rb
@@ -0,0 +1,7 @@
+s = Struct.new(:a, :b, :c)
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x[:a]
+end
diff --git a/benchmark/bm_vm2_struct_small_hset.rb b/benchmark/bm_vm2_struct_small_hset.rb
new file mode 100644
index 0000000000..33c36d20f1
--- /dev/null
+++ b/benchmark/bm_vm2_struct_small_hset.rb
@@ -0,0 +1,7 @@
+s = Struct.new(:a, :b, :c)
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x[:a] = 1
+end
diff --git a/benchmark/bm_vm3_gc.rb b/benchmark/bm_vm3_gc.rb
index 7db9829d44..e668026915 100755..100644
--- a/benchmark/bm_vm3_gc.rb
+++ b/benchmark/bm_vm3_gc.rb
@@ -1,4 +1,3 @@
-#! /usr/bin/ruby
 5000.times do
   100.times do
     {"xxxx"=>"yyyy"}
diff --git a/benchmark/bm_vm_symbol_block_pass.rb b/benchmark/bm_vm_symbol_block_pass.rb
new file mode 100644
index 0000000000..1d433353e1
--- /dev/null
+++ b/benchmark/bm_vm_symbol_block_pass.rb
@@ -0,0 +1,13 @@
+class C
+  1000.times {|i|
+    eval("def i#{i};end")
+  }
+end
+
+c = C.new
+m = C.instance_methods(false)
+5_000.times do
+  m.each do |n|
+    c.tap(&n)
+  end
+end
diff --git a/benchmark/bm_vm_thread_close.rb b/benchmark/bm_vm_thread_close.rb
new file mode 100644
index 0000000000..3e9a265ce8
--- /dev/null
+++ b/benchmark/bm_vm_thread_close.rb
@@ -0,0 +1,6 @@
+1000.times { Thread.new { sleep } }
+i = 0
+while i<100_000 # benchmark loop 3
+  i += 1
+  IO.pipe.each(&:close)
+end
diff --git a/benchmark/bm_vm_thread_pipe.rb b/benchmark/bm_vm_thread_pipe.rb
index 272d231eba..112a621905 100644
--- a/benchmark/bm_vm_thread_pipe.rb
+++ b/benchmark/bm_vm_thread_pipe.rb
@@ -1,4 +1,4 @@
-# Mesure small and plenty pipe read/write.
+# Measure small and plenty pipe read/write.
 # A performance may depend on GVL implementation.
 
 lmax = 100_000
diff --git a/benchmark/bm_vm_thread_queue.rb b/benchmark/bm_vm_thread_queue.rb
new file mode 100644
index 0000000000..37381ae62b
--- /dev/null
+++ b/benchmark/bm_vm_thread_queue.rb
@@ -0,0 +1,18 @@
+require 'thread'
+
+n = 1_000_000
+q = Queue.new
+consumer = Thread.new{
+  while q.pop
+    # consuming
+  end
+}
+
+producer = Thread.new{
+  n.times{
+    q.push true
+  }
+  q.push nil
+}
+
+consumer.join
diff --git a/benchmark/driver.rb b/benchmark/driver.rb
index 695dc41aff..defe3c30be 100644
--- a/benchmark/driver.rb
+++ b/benchmark/driver.rb
@@ -29,6 +29,25 @@ class BenchmarkDriver
     end
   end
 
+  def self.load(input, type, opt)
+    attrs = [:executables, :results]
+    case type
+    when 'yaml'
+      require 'yaml'
+      h = YAML.load(input)
+    when 'json'
+      require 'json'
+      h = JSON.load(input)
+    else
+      h = eval(input.read)
+    end
+    obj = allocate
+    obj.instance_variable_set("@execs", h[:executables] || h["executables"])
+    obj.instance_variable_set("@results", h[:results] || h["results"])
+    obj.instance_variable_set("@opt", opt)
+    obj
+  end
+
   def output *args
     puts(*args)
     @output and @output.puts(*args)
@@ -117,6 +136,25 @@ class BenchmarkDriver
   end
 
   def show_results
+    case @opt[:format]
+    when :tsv
+      strformat = "\t%1$s"
+      numformat = "\t%1$*2$.3f"
+      minwidth = 0
+      name_width = 0
+    when :markdown
+      markdown = true
+      strformat = "|%1$-*2$s"
+      numformat = "|%1$*2$.3f"
+    when :plain
+      strformat = " %1$-*2$s"
+      numformat = " %1$*2$.3f"
+    end
+
+    name_width ||= @results.map {|v,*| v.size}.max
+    minwidth ||= 7
+    width = @execs.map{|(_, v)| [v.size, minwidth].max}
+
     output
 
     if @verbose
@@ -128,6 +166,29 @@ class BenchmarkDriver
       message "Elapsed time: #{Time.now - @start_time} (sec)"
     end
 
+    if rawdata_output = @opt[:rawdata_output]
+      h = {}
+      h[:cpuinfo] = File.read('/proc/cpuinfo') if File.exist?('/proc/cpuinfo')
+      h[:executables] = @execs
+      h[:results] = @results
+      if (type = File.extname(rawdata_output)).empty?
+        type = rawdata_output
+        rawdata_output = @output.path.sub(/\.[^.\/]+\z/, '') << '.' << rawdata_output
+      end
+      case type
+      when 'yaml'
+        require 'yaml'
+        h = YAML.dump(h)
+      when 'json'
+        require 'json'
+        h = JSON.pretty_generate(h)
+      else
+        require 'pp'
+        h = h.pretty_inspect
+      end
+      open(rawdata_output, 'w') {|f| f.puts h}
+    end
+
     output '-----------------------------------------------------------'
     output 'benchmark results:'
 
@@ -136,19 +197,24 @@ class BenchmarkDriver
     end
 
     output "Execution time (sec)"
-    output "name\t#{@execs.map{|(_, v)| v}.join("\t")}"
+    output if markdown
+    output ["name".ljust(name_width), @execs.map.with_index{|(_, v), i| sprintf(strformat, v, width[i])}].join("").rstrip
+    output ["-"*name_width, width.map{|n|":".rjust(n, "-")}].join("|") if markdown
     @results.each{|v, result|
       rets = []
       s = adjusted_results(v, result){|r|
-        rets << sprintf("%.3f", r)
+        rets << sprintf(numformat, r, width[rets.size])
       }
-      output "#{v}#{s}\t#{rets.join("\t")}"
+      v += s if s
+      output [v.ljust(name_width), rets].join("")
     }
 
     if @execs.size > 1
       output
       output "Speedup ratio: compare with the result of `#{@execs[0][1]}' (greater is better)"
-      output "name\t#{@execs[1..-1].map{|(_, v)| v}.join("\t")}"
+      output if markdown
+      output ["name".ljust(name_width), @execs[1..-1].map.with_index{|(_, v), i| sprintf(strformat, v, width[i])}].join("").rstrip
+      output ["-"*name_width, width[1..-1].map{|n|":".rjust(n, "-")}].join("|") if markdown
       @results.each{|v, result|
         rets = []
         first_value = nil
@@ -157,13 +223,14 @@ class BenchmarkDriver
             if r == 0
               rets << "Error"
             else
-              rets << sprintf("%.3f", first_value/r)
+              rets << sprintf(numformat, first_value/r, width[rets.size+1])
             end
           else
             first_value = r
           end
         }
-        output "#{v}#{s}\t#{rets.join("\t")}"
+        v += s if s
+        output [v.ljust(name_width), rets].join("")
       }
     end
 
@@ -238,11 +305,17 @@ class BenchmarkDriver
     result
   end
 
+  unless defined?(File::NULL)
+    if File.exist?('/dev/null')
+      File::NULL = '/dev/null'
+    end
+  end
+
   def measure executable, file
     cmd = "#{executable} #{@ruby_arg} #{file}"
 
     m = Benchmark.measure{
-      `#{cmd}`
+      system(cmd, out: File::NULL)
     }
 
     if $? != 0
@@ -259,7 +332,14 @@ if __FILE__ == $0
     :execs => [],
     :dir => File.dirname(__FILE__),
     :repeat => 1,
-    :output => "bmlog-#{Time.now.strftime('%Y%m%d-%H%M%S')}.#{$$}",
+    :output => nil,
+    :raw_output => nil,
+    :format => :tsv,
+  }
+  formats = {
+    :tsv => ".tsv",
+    :markdown => ".md",
+    :plain => ".txt",
   }
 
   parser = OptionParser.new{|o|
@@ -287,15 +367,34 @@ if __FILE__ == $0
     o.on('--ruby-arg [ARG]', "Optional argument for ruby"){|a|
       opt[:ruby_arg] = a
     }
-    o.on('-q', '--quiet', "Run without notify information except result table."){|q|
-      opt[:quiet] = q
+    o.on('--rawdata-output [FILE]', 'output rawdata'){|r|
+      opt[:rawdata_output] = r
+    }
+    o.on('--load-rawdata=FILE', 'input rawdata'){|r|
+      opt[:rawdata_input] = r
+    }
+    o.on('-f', "--format=FORMAT", "output format (#{formats.keys.join(",")})", formats.keys){|r|
+      opt[:format] = r
     }
     o.on('-v', '--verbose'){|v|
       opt[:verbose] = v
     }
+    o.on('-q', '--quiet', "Run without notify information except result table."){|q|
+      opt[:quiet] = q
+      opt[:verbose] = false
+    }
   }
 
   parser.parse!(ARGV)
-  BenchmarkDriver.benchmark(opt)
+  opt[:output] ||= "bmlog-#{Time.now.strftime('%Y%m%d-%H%M%S')}.#{$$}#{formats[opt[:format]]}"
+
+  if input = opt[:rawdata_input]
+    b = open(input) {|f|
+      BenchmarkDriver.load(f, File.extname(input)[1..-1], opt)
+    }
+    b.show_results
+  else
+    BenchmarkDriver.benchmark(opt)
+  end
 end
 
diff --git a/benchmark/gc/aobench.rb b/benchmark/gc/aobench.rb
new file mode 100644
index 0000000000..2eed7abc83
--- /dev/null
+++ b/benchmark/gc/aobench.rb
@@ -0,0 +1 @@
+require_relative '../bm_app_aobench.rb'
diff --git a/benchmark/gc/binary_trees.rb b/benchmark/gc/binary_trees.rb
new file mode 100644
index 0000000000..af8ea722aa
--- /dev/null
+++ b/benchmark/gc/binary_trees.rb
@@ -0,0 +1 @@
+require_relative '../bm_so_binary_trees.rb'
diff --git a/benchmark/gc/gcbench.rb b/benchmark/gc/gcbench.rb
new file mode 100644
index 0000000000..09a404466a
--- /dev/null
+++ b/benchmark/gc/gcbench.rb
@@ -0,0 +1,56 @@
+require 'benchmark'
+require 'pp'
+require 'optparse'
+
+$list = true
+$gcprof = true
+
+opt = OptionParser.new
+opt.on('-q'){$list = false}
+opt.on('-d'){$gcprof = false}
+opt.parse!(ARGV)
+
+script = File.join(File.dirname(__FILE__), ARGV.shift)
+script += '.rb' unless FileTest.exist?(script)
+raise "#{script} not found" unless FileTest.exist?(script)
+
+puts "Script: #{script}"
+
+if $gcprof
+  GC::Profiler.enable
+end
+
+tms = Benchmark.measure{|x|
+  load script
+}
+
+gc_time = 0
+
+if $gcprof
+  gc_time = GC::Profiler.total_time
+  GC::Profiler.report if $list and RUBY_VERSION >= '2.0.0' # before 1.9.3, report() may run infinite loop
+  GC::Profiler.disable
+end
+
+pp GC.stat
+
+puts "#{RUBY_DESCRIPTION} #{GC::OPTS.inspect}" if defined?(GC::OPTS)
+
+desc = "#{RUBY_VERSION}#{RUBY_PATCHLEVEL >= 0 ? "p#{RUBY_PATCHLEVEL}" : "dev"}"
+name = File.basename(script, '.rb')
+
+puts
+puts script
+puts Benchmark::CAPTION
+puts tms
+puts "GC total time (sec): #{gc_time}"
+
+# show High-Water Mark on Linux
+if File.exist?('/proc/self/status') && /VmHWM:\s*(\d+.+)/ =~ File.read('/proc/self/status')
+  puts
+  puts "VmHWM: #{$1.chomp}"
+end
+
+puts
+puts "Summary of #{name} on #{desc}\t#{tms.real}\t#{gc_time}\t#{GC.count}"
+puts "         (real time in sec, GC time in sec, GC count)"
diff --git a/benchmark/gc/hash1.rb b/benchmark/gc/hash1.rb
new file mode 100644
index 0000000000..cb030d458d
--- /dev/null
+++ b/benchmark/gc/hash1.rb
@@ -0,0 +1,11 @@
+value = 0.01
+h = {}
+n = 50_000
+
+1.upto(n){|i|
+  h["%020d" % i] = "v-#{i}"
+}
+
+(n * 1_000).times{
+  ''
+}
diff --git a/benchmark/gc/hash2.rb b/benchmark/gc/hash2.rb
new file mode 100644
index 0000000000..e8c943fb21
--- /dev/null
+++ b/benchmark/gc/hash2.rb
@@ -0,0 +1,7 @@
+value = 0.01
+h = {}
+n = 4*(10**6)
+
+1.upto(n){|i|
+  h["%020d" % i] = value * i
+}
diff --git a/benchmark/gc/null.rb b/benchmark/gc/null.rb
new file mode 100644
index 0000000000..c05a79f561
--- /dev/null
+++ b/benchmark/gc/null.rb
@@ -0,0 +1 @@
+# null
diff --git a/benchmark/gc/pentomino.rb b/benchmark/gc/pentomino.rb
new file mode 100644
index 0000000000..94ba74be89
--- /dev/null
+++ b/benchmark/gc/pentomino.rb
@@ -0,0 +1 @@
+require_relative '../bm_app_pentomino.rb'
diff --git a/benchmark/gc/rdoc.rb b/benchmark/gc/rdoc.rb
new file mode 100644
index 0000000000..14c89f5611
--- /dev/null
+++ b/benchmark/gc/rdoc.rb
@@ -0,0 +1,13 @@
+require 'rdoc/rdoc'
+require 'tmpdir'
+
+srcdir = File.expand_path('../..', __dir__)
+
+Dir.mktmpdir('rdocbench-'){|d|
+  dir = File.join(d, 'rdocbench')
+  args = %W(--root #{srcdir} --page-dir #{srcdir}/doc --encoding=UTF-8 --no-force-update --all --ri --debug --quiet #{srcdir})
+  args << '--op' << dir
+
+  r = RDoc::RDoc.new
+  r.document args
+}
diff --git a/benchmark/gc/redblack.rb b/benchmark/gc/redblack.rb
new file mode 100644
index 0000000000..c66290140a
--- /dev/null
+++ b/benchmark/gc/redblack.rb
@@ -0,0 +1,366 @@
+# This benchmark is imported from https://github.com/jruby/rubybench/blob/master/time/bench_red_black.rb
+# License is License is Apache-2
+
+require 'benchmark'
+
+# Algorithm based on "Introduction to Algorithms" by Cormen and others
+class RedBlackTree
+  class Node
+    attr_accessor :color
+    attr_accessor :key
+    attr_accessor :left
+    attr_accessor :right
+    attr_accessor :parent
+
+    RED = :red
+    BLACK = :black
+    COLORS = [RED, BLACK].freeze
+
+    def initialize(key, color = RED)
+      raise ArgumentError, "Bad value for color parameter" unless COLORS.include?(color)
+      @color = color
+      @key = key
+      @left = @right = @parent = NilNode.instance
+    end
+
+    def black?
+      return color == BLACK
+    end
+
+    def red?
+      return color == RED
+    end
+  end
+
+  class NilNode < Node
+    class << self
+      private :new
+
+      # it's not thread safe
+      def instance
+        @instance ||= begin
+          def instance
+            return @instance
+          end
+
+          new
+        end
+      end
+    end
+
+    def initialize
+      self.color = BLACK
+      self.key = 0
+      self.left = nil
+      self.right = nil
+      self.parent = nil
+    end
+
+    def nil?
+      return true
+    end
+  end
+
+  include Enumerable
+
+  attr_accessor :root
+  attr_accessor :size
+
+  def initialize
+    self.root = NilNode.instance
+    self.size = 0
+  end
+
+  def add(key)
+    insert(Node.new(key))
+  end
+
+  def insert(x)
+    insert_helper(x)
+
+    x.color = Node::RED
+    while x != root && x.parent.color == Node::RED
+      if x.parent == x.parent.parent.left
+        y = x.parent.parent.right
+        if !y.nil? && y.color == Node::RED
+          x.parent.color = Node::BLACK
+          y.color = Node::BLACK
+          x.parent.parent.color = Node::RED
+          x = x.parent.parent
+        else
+          if x == x.parent.right
+            x = x.parent
+            left_rotate(x)
+          end
+          x.parent.color = Node::BLACK
+          x.parent.parent.color = Node::RED
+          right_rotate(x.parent.parent)
+        end
+      else
+        y = x.parent.parent.left
+        if !y.nil? && y.color == Node::RED
+          x.parent.color = Node::BLACK
+          y.color = Node::BLACK
+          x.parent.parent.color = Node::RED
+          x = x.parent.parent
+        else
+          if x == x.parent.left
+            x = x.parent
+            right_rotate(x)
+          end
+          x.parent.color = Node::BLACK
+          x.parent.parent.color = Node::RED
+          left_rotate(x.parent.parent)
+        end
+      end
+    end
+    root.color = Node::BLACK
+  end
+
+  alias << insert
+
+  def delete(z)
+    y = (z.left.nil? || z.right.nil?) ? z : successor(z)
+    x = y.left.nil? ? y.right : y.left
+    x.parent = y.parent
+
+    if y.parent.nil?
+      self.root = x
+    else
+      if y == y.parent.left
+        y.parent.left = x
+      else
+        y.parent.right = x
+      end
+    end
+
+    z.key = y.key if y != z
+
+    if y.color == Node::BLACK
+      delete_fixup(x)
+    end
+
+    self.size -= 1
+    return y
+  end
+
+  def minimum(x = root)
+    while !x.left.nil?
+      x = x.left
+    end
+    return x
+  end
+
+  def maximum(x = root)
+    while !x.right.nil?
+      x = x.right
+    end
+    return x
+  end
+
+  def successor(x)
+    if !x.right.nil?
+      return minimum(x.right)
+    end
+    y = x.parent
+    while !y.nil? && x == y.right
+      x = y
+      y = y.parent
+    end
+    return y
+  end
+
+  def predecessor(x)
+    if !x.left.nil?
+      return maximum(x.left)
+    end
+    y = x.parent
+    while !y.nil? && x == y.left
+      x = y
+      y = y.parent
+    end
+    return y
+  end
+
+  def inorder_walk(x = root)
+    x = self.minimum
+    while !x.nil?
+      yield x.key
+      x = successor(x)
+    end
+  end
+
+  alias each inorder_walk
+
+  def reverse_inorder_walk(x = root)
+    x = self.maximum
+    while !x.nil?
+      yield x.key
+      x = predecessor(x)
+    end
+  end
+
+  alias reverse_each reverse_inorder_walk
+
+  def search(key, x = root)
+    while !x.nil? && x.key != key
+      key < x.key ? x = x.left : x = x.right
+    end
+    return x
+  end
+
+  def empty?
+    return self.root.nil?
+  end
+
+  def black_height(x = root)
+    height = 0
+    while !x.nil?
+      x = x.left
+      height +=1 if x.nil? || x.black?
+    end
+    return height
+  end
+
+private
+
+  def left_rotate(x)
+    raise "x.right is nil!" if x.right.nil?
+    y = x.right
+    x.right = y.left
+    y.left.parent = x if !y.left.nil?
+    y.parent = x.parent
+    if x.parent.nil?
+      self.root = y
+    else
+      if x == x.parent.left
+        x.parent.left = y
+      else
+        x.parent.right = y
+      end
+    end
+    y.left = x
+    x.parent = y
+  end
+
+  def right_rotate(x)
+    raise "x.left is nil!" if x.left.nil?
+    y = x.left
+    x.left = y.right
+    y.right.parent = x if !y.right.nil?
+    y.parent = x.parent
+    if x.parent.nil?
+      self.root = y
+    else
+      if x == x.parent.left
+        x.parent.left = y
+      else
+        x.parent.right = y
+      end
+    end
+    y.right = x
+    x.parent = y
+  end
+
+  def insert_helper(z)
+    y = NilNode.instance
+    x = root
+    while !x.nil?
+      y = x
+      z.key < x.key ? x = x.left : x = x.right
+    end
+    z.parent = y
+    if y.nil?
+      self.root = z
+    else
+      z.key < y.key ? y.left = z : y.right = z
+    end
+    self.size += 1
+  end
+
+  def delete_fixup(x)
+    while x != root && x.color == Node::BLACK
+      if x == x.parent.left
+        w = x.parent.right
+        if w.color == Node::RED
+          w.color = Node::BLACK
+          x.parent.color = Node::RED
+          left_rotate(x.parent)
+          w = x.parent.right
+        end
+        if w.left.color == Node::BLACK && w.right.color == Node::BLACK
+          w.color = Node::RED
+          x = x.parent
+        else
+          if w.right.color == Node::BLACK
+            w.left.color = Node::BLACK
+            w.color = Node::RED
+            right_rotate(w)
+            w = x.parent.right
+          end
+          w.color = x.parent.color
+          x.parent.color = Node::BLACK
+          w.right.color = Node::BLACK
+          left_rotate(x.parent)
+          x = root
+        end
+      else
+        w = x.parent.left
+        if w.color == Node::RED
+          w.color = Node::BLACK
+          x.parent.color = Node::RED
+          right_rotate(x.parent)
+          w = x.parent.left
+        end
+        if w.right.color == Node::BLACK && w.left.color == Node::BLACK
+          w.color = Node::RED
+          x = x.parent
+        else
+          if w.left.color == Node::BLACK
+            w.right.color = Node::BLACK
+            w.color = Node::RED
+            left_rotate(w)
+            w = x.parent.left
+          end
+          w.color = x.parent.color
+          x.parent.color = Node::BLACK
+          w.left.color = Node::BLACK
+          right_rotate(x.parent)
+          x = root
+        end
+      end
+    end
+    x.color = Node::BLACK
+  end
+end
+
+def rbt_bm
+  n = 100_000
+  a1 = []; n.times { a1 << rand(999_999) }
+  a2 = []; n.times { a2 << rand(999_999) }
+
+  start = Time.now
+
+  tree = RedBlackTree.new
+
+  n.times {|i| tree.add(i) }
+  n.times { tree.delete(tree.root) }
+
+  tree = RedBlackTree.new
+  a1.each {|e| tree.add(e) }
+  a2.each {|e| tree.search(e) }
+  tree.inorder_walk {|key| key + 1 }
+  tree.reverse_inorder_walk {|key| key + 1 }
+  n.times { tree.minimum }
+  n.times { tree.maximum }
+
+  return Time.now - start
+end
+
+N = (ARGV[0] || 10).to_i
+
+N.times do
+  # puts rbt_bm.to_f
+  rbt_bm.to_f
+  # puts "GC.count = #{GC.count}" if GC.respond_to?(:count)
+end
diff --git a/benchmark/gc/ring.rb b/benchmark/gc/ring.rb
new file mode 100644
index 0000000000..be2c7b7250
--- /dev/null
+++ b/benchmark/gc/ring.rb
@@ -0,0 +1,29 @@
+# create many old objects
+
+max = 30_000_000
+
+class Ring
+  attr_reader :next_ring
+  def initialize n = nil
+    @next_ring = n
+  end
+
+
+  def size
+    s = 1
+    ring = self
+    while ring.next_ring
+      s += 1
+      ring = ring.next_ring
+    end
+    s
+  end
+end
+
+ring = Ring.new
+
+max.times{
+  ring = Ring.new(ring)
+}
+
+# p ring.size
diff --git a/benchmark/prepare_require.rb b/benchmark/prepare_require.rb
new file mode 100644
index 0000000000..c4786f04ad
--- /dev/null
+++ b/benchmark/prepare_require.rb
@@ -0,0 +1,25 @@
+require "fileutils"
+
+def prepare
+  num_files = 10000
+
+  basename = File.dirname($0)
+  data_dir = File.join(basename, "bm_require.data")
+
+  # skip if all of files exists
+  if File.exist?(File.join(data_dir, "c#{num_files}.rb"))
+    return
+  end
+
+  FileUtils.mkdir_p(data_dir)
+
+  1.upto(num_files) do |i|
+    f = File.open("#{data_dir}/c#{i}.rb", "w")
+    f.puts <<-END
+      class C#{i}
+      end
+    END
+  end
+end
+
+prepare
diff --git a/benchmark/prepare_require_thread.rb b/benchmark/prepare_require_thread.rb
new file mode 100644
index 0000000000..339ecb8b39
--- /dev/null
+++ b/benchmark/prepare_require_thread.rb
@@ -0,0 +1,2 @@
+load File.join(File.dirname(__FILE__), "prepare_require.rb")
+
diff --git a/benchmark/prepare_so_k_nucleotide.rb b/benchmark/prepare_so_k_nucleotide.rb
index f28f4460a1..d83aeb7a7e 100644
--- a/benchmark/prepare_so_k_nucleotide.rb
+++ b/benchmark/prepare_so_k_nucleotide.rb
@@ -1,2 +1,2 @@
-require File.join(File.dirname(__FILE__), 'make_fasta_output')
+require_relative 'make_fasta_output'
 prepare_fasta_output(100_000)
diff --git a/benchmark/prepare_so_reverse_complement.rb b/benchmark/prepare_so_reverse_complement.rb
index 7f089109de..da3ec2df14 100644
--- a/benchmark/prepare_so_reverse_complement.rb
+++ b/benchmark/prepare_so_reverse_complement.rb
@@ -1,2 +1,2 @@
-require File.join(File.dirname(__FILE__), 'make_fasta_output')
+require_relative 'make_fasta_output'
 prepare_fasta_output(2_500_000)
diff --git a/bignum.c b/bignum.c
index 97557165b7..38380f6c4e 100644
--- a/bignum.c
+++ b/bignum.c
@@ -9,10 +9,9 @@
 
 **********************************************************************/
 
-#include "ruby/ruby.h"
+#include "internal.h"
 #include "ruby/thread.h"
 #include "ruby/util.h"
-#include "internal.h"
 
 #ifdef HAVE_STRINGS_H
 #include <strings.h>
@@ -25,30 +24,2847 @@
 #endif
 #include <assert.h>
 
+#if defined(HAVE_LIBGMP) && defined(HAVE_GMP_H)
+#define USE_GMP
+#include <gmp.h>
+#endif
+
+#define RB_BIGNUM_TYPE_P(x) RB_TYPE_P((x), T_BIGNUM)
+
 VALUE rb_cBignum;
+const char ruby_digitmap[] = "0123456789abcdefghijklmnopqrstuvwxyz";
 
-static VALUE big_three = Qnil;
+#ifndef SIZEOF_BDIGIT_DBL
+# if SIZEOF_INT*2 <= SIZEOF_LONG_LONG
+#  define SIZEOF_BDIGIT_DBL SIZEOF_LONG_LONG
+# else
+#  define SIZEOF_BDIGIT_DBL SIZEOF_LONG
+# endif
+#endif
 
-#if defined __MINGW32__
-#define USHORT _USHORT
+STATIC_ASSERT(sizeof_bdigit_dbl, sizeof(BDIGIT_DBL) == SIZEOF_BDIGIT_DBL);
+STATIC_ASSERT(sizeof_bdigit_dbl_signed, sizeof(BDIGIT_DBL_SIGNED) == SIZEOF_BDIGIT_DBL);
+STATIC_ASSERT(sizeof_bdigit, SIZEOF_BDIGIT <= sizeof(BDIGIT));
+STATIC_ASSERT(sizeof_bdigit_and_dbl, SIZEOF_BDIGIT*2 <= SIZEOF_BDIGIT_DBL);
+STATIC_ASSERT(bdigit_signedness, 0 < (BDIGIT)-1);
+STATIC_ASSERT(bdigit_dbl_signedness, 0 < (BDIGIT_DBL)-1);
+STATIC_ASSERT(bdigit_dbl_signed_signedness, 0 > (BDIGIT_DBL_SIGNED)-1);
+STATIC_ASSERT(rbignum_embed_len_max, BIGNUM_EMBED_LEN_MAX <= (BIGNUM_EMBED_LEN_MASK >> BIGNUM_EMBED_LEN_SHIFT));
+
+#if SIZEOF_BDIGIT < SIZEOF_LONG
+STATIC_ASSERT(sizeof_long_and_sizeof_bdigit, SIZEOF_LONG % SIZEOF_BDIGIT == 0);
+#else
+STATIC_ASSERT(sizeof_long_and_sizeof_bdigit, SIZEOF_BDIGIT % SIZEOF_LONG == 0);
 #endif
 
-#define BDIGITS(x) (RBIGNUM_DIGITS(x))
-#define BITSPERDIG (SIZEOF_BDIGITS*CHAR_BIT)
+#ifdef WORDS_BIGENDIAN
+#   define HOST_BIGENDIAN_P 1
+#else
+#   define HOST_BIGENDIAN_P 0
+#endif
+#define ALIGNOF(type) ((int)offsetof(struct { char f1; type f2; }, f2))
+/* (!LSHIFTABLE(d, n) ? 0 : (n)) is same as n but suppress a warning, C4293, by Visual Studio.  */
+#define LSHIFTABLE(d, n) ((n) < sizeof(d) * CHAR_BIT)
+#define LSHIFTX(d, n) (!LSHIFTABLE(d, n) ? 0 : ((d) << (!LSHIFTABLE(d, n) ? 0 : (n))))
+#define CLEAR_LOWBITS(d, numbits) ((d) & LSHIFTX(~((d)*0), (numbits)))
+#define FILL_LOWBITS(d, numbits) ((d) | (LSHIFTX(((d)*0+1), (numbits))-1))
+#define POW2_P(x) (((x)&((x)-1))==0)
+
+#define BDIGITS(x) (BIGNUM_DIGITS(x))
+#define BITSPERDIG (SIZEOF_BDIGIT*CHAR_BIT)
 #define BIGRAD ((BDIGIT_DBL)1 << BITSPERDIG)
 #define BIGRAD_HALF ((BDIGIT)(BIGRAD >> 1))
-#define DIGSPERLONG (SIZEOF_LONG/SIZEOF_BDIGITS)
-#if HAVE_LONG_LONG
-# define DIGSPERLL (SIZEOF_LONG_LONG/SIZEOF_BDIGITS)
-#endif
-#define BIGUP(x) ((BDIGIT_DBL)(x) << BITSPERDIG)
+#define BDIGIT_MSB(d) (((d) & BIGRAD_HALF) != 0)
+#define BIGUP(x) LSHIFTX(((x) + (BDIGIT_DBL)0), BITSPERDIG)
 #define BIGDN(x) RSHIFT((x),BITSPERDIG)
-#define BIGLO(x) ((BDIGIT)((x) & (BIGRAD-1)))
-#define BDIGMAX ((BDIGIT)-1)
+#define BIGLO(x) ((BDIGIT)((x) & BDIGMAX))
+#define BDIGMAX ((BDIGIT)(BIGRAD-1))
+#define BDIGIT_DBL_MAX (~(BDIGIT_DBL)0)
+
+#if SIZEOF_BDIGIT == 2
+#   define swap_bdigit(x) swap16(x)
+#elif SIZEOF_BDIGIT == 4
+#   define swap_bdigit(x) swap32(x)
+#elif SIZEOF_BDIGIT == 8
+#   define swap_bdigit(x) swap64(x)
+#endif
 
-#define BIGZEROP(x) (RBIGNUM_LEN(x) == 0 || \
+#define BIGZEROP(x) (BIGNUM_LEN(x) == 0 || \
 		     (BDIGITS(x)[0] == 0 && \
-		      (RBIGNUM_LEN(x) == 1 || bigzero_p(x))))
+		      (BIGNUM_LEN(x) == 1 || bigzero_p(x))))
+#define BIGSIZE(x) (BIGNUM_LEN(x) == 0 ? (size_t)0 : \
+    BDIGITS(x)[BIGNUM_LEN(x)-1] ? \
+        (size_t)(BIGNUM_LEN(x)*SIZEOF_BDIGIT - nlz(BDIGITS(x)[BIGNUM_LEN(x)-1])/CHAR_BIT) : \
+    rb_absint_size(x, NULL))
+
+#define BIGDIVREM_EXTRA_WORDS 1
+#define bdigit_roomof(n) roomof(n, SIZEOF_BDIGIT)
+#define BARY_ARGS(ary) ary, numberof(ary)
+
+#define BARY_ADD(z, x, y) bary_add(BARY_ARGS(z), BARY_ARGS(x), BARY_ARGS(y))
+#define BARY_SUB(z, x, y) bary_sub(BARY_ARGS(z), BARY_ARGS(x), BARY_ARGS(y))
+#define BARY_SHORT_MUL(z, x, y) bary_short_mul(BARY_ARGS(z), BARY_ARGS(x), BARY_ARGS(y))
+#define BARY_DIVMOD(q, r, x, y) bary_divmod(BARY_ARGS(q), BARY_ARGS(r), BARY_ARGS(x), BARY_ARGS(y))
+#define BARY_ZERO_P(x) bary_zero_p(BARY_ARGS(x))
+
+#define BIGNUM_SET_NEGATIVE_SIGN(b) BIGNUM_SET_SIGN(b, 0)
+#define BIGNUM_SET_POSITIVE_SIGN(b) BIGNUM_SET_SIGN(b, 1)
+
+#define bignew(len,sign) bignew_1(rb_cBignum,(len),(sign))
+
+#define BDIGITS_ZERO(ptr, n) do { \
+  BDIGIT *bdigitz_zero_ptr = (ptr); \
+  size_t bdigitz_zero_n = (n); \
+  while (bdigitz_zero_n) { \
+    *bdigitz_zero_ptr++ = 0; \
+    bdigitz_zero_n--; \
+  } \
+} while (0)
+
+#define BARY_TRUNC(ds, n) do { \
+        while (0 < (n) && (ds)[(n)-1] == 0) \
+            (n)--; \
+    } while (0)
+
+#define KARATSUBA_BALANCED(xn, yn) ((yn)/2 < (xn))
+#define TOOM3_BALANCED(xn, yn) (((yn)+2)/3 * 2 < (xn))
+
+#define GMP_MUL_DIGITS 20
+#define KARATSUBA_MUL_DIGITS 70
+#define TOOM3_MUL_DIGITS 150
+
+#define GMP_DIV_DIGITS 20
+#define GMP_BIG2STR_DIGITS 20
+#define GMP_STR2BIG_DIGITS 20
+
+typedef void (mulfunc_t)(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, BDIGIT *wds, size_t wn);
+
+static mulfunc_t bary_mul_toom3_start;
+static mulfunc_t bary_mul_karatsuba_start;
+static BDIGIT bigdivrem_single(BDIGIT *qds, const BDIGIT *xds, size_t xn, BDIGIT y);
+static void bary_divmod(BDIGIT *qds, size_t qn, BDIGIT *rds, size_t rn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn);
+
+static VALUE bigmul0(VALUE x, VALUE y);
+static void bary_mul_toom3(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, BDIGIT *wds, size_t wn);
+static VALUE bignew_1(VALUE klass, size_t len, int sign);
+static inline VALUE bigtrunc(VALUE x);
+
+static VALUE bigsq(VALUE x);
+static void bigdivmod(VALUE x, VALUE y, volatile VALUE *divp, volatile VALUE *modp);
+static inline VALUE power_cache_get_power(int base, int power_level, size_t *numdigits_ret);
+
+#if SIZEOF_BDIGIT <= SIZEOF_INT
+static int nlz(BDIGIT x) { return nlz_int((unsigned int)x) - (SIZEOF_INT-SIZEOF_BDIGIT) * CHAR_BIT; }
+#elif SIZEOF_BDIGIT <= SIZEOF_LONG
+static int nlz(BDIGIT x) { return nlz_long((unsigned long)x) - (SIZEOF_LONG-SIZEOF_BDIGIT) * CHAR_BIT; }
+#elif SIZEOF_BDIGIT <= SIZEOF_LONG_LONG
+static int nlz(BDIGIT x) { return nlz_long_long((unsigned LONG_LONG)x) - (SIZEOF_LONG_LONG-SIZEOF_BDIGIT) * CHAR_BIT; }
+#elif SIZEOF_BDIGIT <= SIZEOF_INT128_T
+static int nlz(BDIGIT x) { return nlz_int128((uint128_t)x) - (SIZEOF_INT128_T-SIZEOF_BDIGIT) * CHAR_BIT; }
+#endif
+
+#define U16(a) ((uint16_t)(a))
+#define U32(a) ((uint32_t)(a))
+#ifdef HAVE_UINT64_T
+#define U64(a,b) (((uint64_t)(a) << 32) | (b))
+#endif
+#ifdef HAVE_UINT128_T
+#define U128(a,b,c,d) (((uint128_t)U64(a,b) << 64) | U64(c,d))
+#endif
+
+/* The following script, maxpow.rb, generates the tables follows.
+
+def big(n, bits)
+  ns = []
+  ((bits+31)/32).times {
+    ns << sprintf("0x%08x", n & 0xffff_ffff)
+    n >>= 32
+  }
+  "U#{bits}(" + ns.reverse.join(",") + ")"
+end
+def values(ary, width, indent)
+  lines = [""]
+  ary.each {|e|
+    lines << "" if !ary.last.empty? && width < (lines.last + e + ", ").length
+    lines.last << e + ", "
+  }
+  lines.map {|line| " " * indent + line.chomp(" ") + "\n" }.join
+end
+[16,32,64,128].each {|bits|
+  max = 2**bits-1
+  exps = []
+  nums = []
+  2.upto(36) {|base|
+    exp = 0
+    n = 1
+    while n * base <= max
+      exp += 1
+      n *= base
+    end
+    exps << exp.to_s
+    nums << big(n, bits)
+  }
+  puts "#ifdef HAVE_UINT#{bits}_T"
+  puts "static const int maxpow#{bits}_exp[35] = {"
+  print values(exps, 70, 4)
+  puts "};"
+  puts "static const uint#{bits}_t maxpow#{bits}_num[35] = {"
+  print values(nums, 70, 4)
+  puts "};"
+  puts "#endif"
+}
+
+ */
+
+#if SIZEOF_BDIGIT_DBL == 2
+static const int maxpow16_exp[35] = {
+    15, 10, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3,
+    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+};
+static const uint16_t maxpow16_num[35] = {
+    U16(0x00008000), U16(0x0000e6a9), U16(0x00004000), U16(0x00003d09),
+    U16(0x0000b640), U16(0x000041a7), U16(0x00008000), U16(0x0000e6a9),
+    U16(0x00002710), U16(0x00003931), U16(0x00005100), U16(0x00006f91),
+    U16(0x00009610), U16(0x0000c5c1), U16(0x00001000), U16(0x00001331),
+    U16(0x000016c8), U16(0x00001acb), U16(0x00001f40), U16(0x0000242d),
+    U16(0x00002998), U16(0x00002f87), U16(0x00003600), U16(0x00003d09),
+    U16(0x000044a8), U16(0x00004ce3), U16(0x000055c0), U16(0x00005f45),
+    U16(0x00006978), U16(0x0000745f), U16(0x00008000), U16(0x00008c61),
+    U16(0x00009988), U16(0x0000a77b), U16(0x0000b640),
+};
+#elif SIZEOF_BDIGIT_DBL == 4
+static const int maxpow32_exp[35] = {
+    31, 20, 15, 13, 12, 11, 10, 10, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7,
+    7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+};
+static const uint32_t maxpow32_num[35] = {
+    U32(0x80000000), U32(0xcfd41b91), U32(0x40000000), U32(0x48c27395),
+    U32(0x81bf1000), U32(0x75db9c97), U32(0x40000000), U32(0xcfd41b91),
+    U32(0x3b9aca00), U32(0x8c8b6d2b), U32(0x19a10000), U32(0x309f1021),
+    U32(0x57f6c100), U32(0x98c29b81), U32(0x10000000), U32(0x18754571),
+    U32(0x247dbc80), U32(0x3547667b), U32(0x4c4b4000), U32(0x6b5a6e1d),
+    U32(0x94ace180), U32(0xcaf18367), U32(0x0b640000), U32(0x0e8d4a51),
+    U32(0x1269ae40), U32(0x17179149), U32(0x1cb91000), U32(0x23744899),
+    U32(0x2b73a840), U32(0x34e63b41), U32(0x40000000), U32(0x4cfa3cc1),
+    U32(0x5c13d840), U32(0x6d91b519), U32(0x81bf1000),
+};
+#elif SIZEOF_BDIGIT_DBL == 8 && defined HAVE_UINT64_T
+static const int maxpow64_exp[35] = {
+    63, 40, 31, 27, 24, 22, 21, 20, 19, 18, 17, 17, 16, 16, 15, 15, 15,
+    15, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12,
+    12,
+};
+static const uint64_t maxpow64_num[35] = {
+    U64(0x80000000,0x00000000), U64(0xa8b8b452,0x291fe821),
+    U64(0x40000000,0x00000000), U64(0x6765c793,0xfa10079d),
+    U64(0x41c21cb8,0xe1000000), U64(0x36427987,0x50226111),
+    U64(0x80000000,0x00000000), U64(0xa8b8b452,0x291fe821),
+    U64(0x8ac72304,0x89e80000), U64(0x4d28cb56,0xc33fa539),
+    U64(0x1eca170c,0x00000000), U64(0x780c7372,0x621bd74d),
+    U64(0x1e39a505,0x7d810000), U64(0x5b27ac99,0x3df97701),
+    U64(0x10000000,0x00000000), U64(0x27b95e99,0x7e21d9f1),
+    U64(0x5da0e1e5,0x3c5c8000), U64(0xd2ae3299,0xc1c4aedb),
+    U64(0x16bcc41e,0x90000000), U64(0x2d04b7fd,0xd9c0ef49),
+    U64(0x5658597b,0xcaa24000), U64(0xa0e20737,0x37609371),
+    U64(0x0c29e980,0x00000000), U64(0x14adf4b7,0x320334b9),
+    U64(0x226ed364,0x78bfa000), U64(0x383d9170,0xb85ff80b),
+    U64(0x5a3c23e3,0x9c000000), U64(0x8e651373,0x88122bcd),
+    U64(0xdd41bb36,0xd259e000), U64(0x0aee5720,0xee830681),
+    U64(0x10000000,0x00000000), U64(0x172588ad,0x4f5f0981),
+    U64(0x211e44f7,0xd02c1000), U64(0x2ee56725,0xf06e5c71),
+    U64(0x41c21cb8,0xe1000000),
+};
+#elif SIZEOF_BDIGIT_DBL == 16 && defined HAVE_UINT128_T
+static const int maxpow128_exp[35] = {
+    127, 80, 63, 55, 49, 45, 42, 40, 38, 37, 35, 34, 33, 32, 31, 31, 30,
+    30, 29, 29, 28, 28, 27, 27, 27, 26, 26, 26, 26, 25, 25, 25, 25, 24,
+    24,
+};
+static const uint128_t maxpow128_num[35] = {
+    U128(0x80000000,0x00000000,0x00000000,0x00000000),
+    U128(0x6f32f1ef,0x8b18a2bc,0x3cea5978,0x9c79d441),
+    U128(0x40000000,0x00000000,0x00000000,0x00000000),
+    U128(0xd0cf4b50,0xcfe20765,0xfff4b4e3,0xf741cf6d),
+    U128(0x6558e2a0,0x921fe069,0x42860000,0x00000000),
+    U128(0x5080c7b7,0xd0e31ba7,0x5911a67d,0xdd3d35e7),
+    U128(0x40000000,0x00000000,0x00000000,0x00000000),
+    U128(0x6f32f1ef,0x8b18a2bc,0x3cea5978,0x9c79d441),
+    U128(0x4b3b4ca8,0x5a86c47a,0x098a2240,0x00000000),
+    U128(0xffd1390a,0x0adc2fb8,0xdabbb817,0x4d95c99b),
+    U128(0x2c6fdb36,0x4c25e6c0,0x00000000,0x00000000),
+    U128(0x384bacd6,0x42c343b4,0xe90c4272,0x13506d29),
+    U128(0x31f5db32,0xa34aced6,0x0bf13a0e,0x00000000),
+    U128(0x20753ada,0xfd1e839f,0x53686d01,0x3143ee01),
+    U128(0x10000000,0x00000000,0x00000000,0x00000000),
+    U128(0x68ca11d6,0xb4f6d1d1,0xfaa82667,0x8073c2f1),
+    U128(0x223e493b,0xb3bb69ff,0xa4b87d6c,0x40000000),
+    U128(0xad62418d,0x14ea8247,0x01c4b488,0x6cc66f59),
+    U128(0x2863c1f5,0xcdae42f9,0x54000000,0x00000000),
+    U128(0xa63fd833,0xb9386b07,0x36039e82,0xbe651b25),
+    U128(0x1d1f7a9c,0xd087a14d,0x28cdf3d5,0x10000000),
+    U128(0x651b5095,0xc2ea8fc1,0xb30e2c57,0x77aaf7e1),
+    U128(0x0ddef20e,0xff760000,0x00000000,0x00000000),
+    U128(0x29c30f10,0x29939b14,0x6664242d,0x97d9f649),
+    U128(0x786a435a,0xe9558b0e,0x6aaf6d63,0xa8000000),
+    U128(0x0c5afe6f,0xf302bcbf,0x94fd9829,0xd87f5079),
+    U128(0x1fce575c,0xe1692706,0x07100000,0x00000000),
+    U128(0x4f34497c,0x8597e144,0x36e91802,0x00528229),
+    U128(0xbf3a8e1d,0x41ef2170,0x7802130d,0x84000000),
+    U128(0x0e7819e1,0x7f1eb0fb,0x6ee4fb89,0x01d9531f),
+    U128(0x20000000,0x00000000,0x00000000,0x00000000),
+    U128(0x4510460d,0xd9e879c0,0x14a82375,0x2f22b321),
+    U128(0x91abce3c,0x4b4117ad,0xe76d35db,0x22000000),
+    U128(0x08973ea3,0x55d75bc2,0x2e42c391,0x727d69e1),
+    U128(0x10e425c5,0x6daffabc,0x35c10000,0x00000000),
+};
+#endif
+
+static BDIGIT_DBL
+maxpow_in_bdigit_dbl(int base, int *exp_ret)
+{
+    BDIGIT_DBL maxpow;
+    int exponent;
+
+    assert(2 <= base && base <= 36);
+
+    {
+#if SIZEOF_BDIGIT_DBL == 2
+        maxpow = maxpow16_num[base-2];
+        exponent = maxpow16_exp[base-2];
+#elif SIZEOF_BDIGIT_DBL == 4
+        maxpow = maxpow32_num[base-2];
+        exponent = maxpow32_exp[base-2];
+#elif SIZEOF_BDIGIT_DBL == 8 && defined HAVE_UINT64_T
+        maxpow = maxpow64_num[base-2];
+        exponent = maxpow64_exp[base-2];
+#elif SIZEOF_BDIGIT_DBL == 16 && defined HAVE_UINT128_T
+        maxpow = maxpow128_num[base-2];
+        exponent = maxpow128_exp[base-2];
+#else
+        maxpow = base;
+        exponent = 1;
+        while (maxpow <= BDIGIT_DBL_MAX / base) {
+            maxpow *= base;
+            exponent++;
+        }
+#endif
+    }
+
+    *exp_ret = exponent;
+    return maxpow;
+}
+
+static inline BDIGIT_DBL
+bary2bdigitdbl(const BDIGIT *ds, size_t n)
+{
+    assert(n <= 2);
+
+    if (n == 2)
+        return ds[0] | BIGUP(ds[1]);
+    if (n == 1)
+        return ds[0];
+    return 0;
+}
+
+static inline void
+bdigitdbl2bary(BDIGIT *ds, size_t n, BDIGIT_DBL num)
+{
+    assert(n == 2);
+
+    ds[0] = BIGLO(num);
+    ds[1] = (BDIGIT)BIGDN(num);
+}
+
+static int
+bary_cmp(const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+    BARY_TRUNC(xds, xn);
+    BARY_TRUNC(yds, yn);
+
+    if (xn < yn)
+        return -1;
+    if (xn > yn)
+        return 1;
+
+    while (xn-- && xds[xn] == yds[xn])
+        ;
+    if (xn == (size_t)-1)
+        return 0;
+    return xds[xn] < yds[xn] ? -1 : 1;
+}
+
+static BDIGIT
+bary_small_lshift(BDIGIT *zds, const BDIGIT *xds, size_t n, int shift)
+{
+    size_t i;
+    BDIGIT_DBL num = 0;
+    assert(0 <= shift && shift < BITSPERDIG);
+
+    for (i=0; i<n; i++) {
+	num = num | (BDIGIT_DBL)*xds++ << shift;
+	*zds++ = BIGLO(num);
+	num = BIGDN(num);
+    }
+    return BIGLO(num);
+}
+
+static void
+bary_small_rshift(BDIGIT *zds, const BDIGIT *xds, size_t n, int shift, BDIGIT higher_bdigit)
+{
+    BDIGIT_DBL num = 0;
+    BDIGIT x;
+
+    assert(0 <= shift && shift < BITSPERDIG);
+
+    num = BIGUP(higher_bdigit);
+    while (n--) {
+	num = (num | xds[n]) >> shift;
+        x = xds[n];
+	zds[n] = BIGLO(num);
+	num = BIGUP(x);
+    }
+}
+
+static int
+bary_zero_p(BDIGIT *xds, size_t xn)
+{
+    if (xn == 0)
+        return 1;
+    do {
+	if (xds[--xn]) return 0;
+    } while (xn);
+    return 1;
+}
+
+static void
+bary_neg(BDIGIT *ds, size_t n)
+{
+    while (n--)
+        ds[n] = BIGLO(~ds[n]);
+}
+
+static int
+bary_2comp(BDIGIT *ds, size_t n)
+{
+    size_t i;
+    i = 0;
+    for (i = 0; i < n; i++) {
+        if (ds[i] != 0) {
+            goto non_zero;
+        }
+    }
+    return 1;
+
+  non_zero:
+    ds[i] = BIGLO(~ds[i] + 1);
+    i++;
+    for (; i < n; i++) {
+        ds[i] = BIGLO(~ds[i]);
+    }
+    return 0;
+}
+
+static void
+bary_swap(BDIGIT *ds, size_t num_bdigits)
+{
+    BDIGIT *p1 = ds;
+    BDIGIT *p2 = ds + num_bdigits - 1;
+    for (; p1 < p2; p1++, p2--) {
+        BDIGIT tmp = *p1;
+        *p1 = *p2;
+        *p2 = tmp;
+    }
+}
+
+#define INTEGER_PACK_WORDORDER_MASK \
+    (INTEGER_PACK_MSWORD_FIRST | \
+     INTEGER_PACK_LSWORD_FIRST)
+#define INTEGER_PACK_BYTEORDER_MASK \
+    (INTEGER_PACK_MSBYTE_FIRST | \
+     INTEGER_PACK_LSBYTE_FIRST | \
+     INTEGER_PACK_NATIVE_BYTE_ORDER)
+
+static void
+validate_integer_pack_format(size_t numwords, size_t wordsize, size_t nails, int flags, int supported_flags)
+{
+    int wordorder_bits = flags & INTEGER_PACK_WORDORDER_MASK;
+    int byteorder_bits = flags & INTEGER_PACK_BYTEORDER_MASK;
+
+    if (flags & ~supported_flags) {
+        rb_raise(rb_eArgError, "unsupported flags specified");
+    }
+    if (wordorder_bits == 0) {
+        if (1 < numwords)
+            rb_raise(rb_eArgError, "word order not specified");
+    }
+    else if (wordorder_bits != INTEGER_PACK_MSWORD_FIRST &&
+        wordorder_bits != INTEGER_PACK_LSWORD_FIRST)
+        rb_raise(rb_eArgError, "unexpected word order");
+    if (byteorder_bits == 0) {
+        rb_raise(rb_eArgError, "byte order not specified");
+    }
+    else if (byteorder_bits != INTEGER_PACK_MSBYTE_FIRST &&
+        byteorder_bits != INTEGER_PACK_LSBYTE_FIRST &&
+        byteorder_bits != INTEGER_PACK_NATIVE_BYTE_ORDER)
+        rb_raise(rb_eArgError, "unexpected byte order");
+    if (wordsize == 0)
+        rb_raise(rb_eArgError, "invalid wordsize: %"PRI_SIZE_PREFIX"u", wordsize);
+    if (SSIZE_MAX < wordsize)
+        rb_raise(rb_eArgError, "too big wordsize: %"PRI_SIZE_PREFIX"u", wordsize);
+    if (wordsize <= nails / CHAR_BIT)
+        rb_raise(rb_eArgError, "too big nails: %"PRI_SIZE_PREFIX"u", nails);
+    if (SIZE_MAX / wordsize < numwords)
+        rb_raise(rb_eArgError, "too big numwords * wordsize: %"PRI_SIZE_PREFIX"u * %"PRI_SIZE_PREFIX"u", numwords, wordsize);
+}
+
+static void
+integer_pack_loop_setup(
+    size_t numwords, size_t wordsize, size_t nails, int flags,
+    size_t *word_num_fullbytes_ret,
+    int *word_num_partialbits_ret,
+    size_t *word_start_ret,
+    ssize_t *word_step_ret,
+    size_t *word_last_ret,
+    size_t *byte_start_ret,
+    int *byte_step_ret)
+{
+    int wordorder_bits = flags & INTEGER_PACK_WORDORDER_MASK;
+    int byteorder_bits = flags & INTEGER_PACK_BYTEORDER_MASK;
+    size_t word_num_fullbytes;
+    int word_num_partialbits;
+    size_t word_start;
+    ssize_t word_step;
+    size_t word_last;
+    size_t byte_start;
+    int byte_step;
+
+    word_num_partialbits = CHAR_BIT - (int)(nails % CHAR_BIT);
+    if (word_num_partialbits == CHAR_BIT)
+        word_num_partialbits = 0;
+    word_num_fullbytes = wordsize - (nails / CHAR_BIT);
+    if (word_num_partialbits != 0) {
+        word_num_fullbytes--;
+    }
+
+    if (wordorder_bits == INTEGER_PACK_MSWORD_FIRST) {
+        word_start = wordsize*(numwords-1);
+        word_step = -(ssize_t)wordsize;
+        word_last = 0;
+    }
+    else {
+        word_start = 0;
+        word_step = wordsize;
+        word_last = wordsize*(numwords-1);
+    }
+
+    if (byteorder_bits == INTEGER_PACK_NATIVE_BYTE_ORDER) {
+#ifdef WORDS_BIGENDIAN
+        byteorder_bits = INTEGER_PACK_MSBYTE_FIRST;
+#else
+        byteorder_bits = INTEGER_PACK_LSBYTE_FIRST;
+#endif
+    }
+    if (byteorder_bits == INTEGER_PACK_MSBYTE_FIRST) {
+        byte_start = wordsize-1;
+        byte_step = -1;
+    }
+    else {
+        byte_start = 0;
+        byte_step = 1;
+    }
+
+    *word_num_partialbits_ret = word_num_partialbits;
+    *word_num_fullbytes_ret = word_num_fullbytes;
+    *word_start_ret = word_start;
+    *word_step_ret = word_step;
+    *word_last_ret = word_last;
+    *byte_start_ret = byte_start;
+    *byte_step_ret = byte_step;
+}
+
+static inline void
+integer_pack_fill_dd(BDIGIT **dpp, BDIGIT **dep, BDIGIT_DBL *ddp, int *numbits_in_dd_p)
+{
+    if (*dpp < *dep && BITSPERDIG <= (int)sizeof(*ddp) * CHAR_BIT - *numbits_in_dd_p) {
+        *ddp |= (BDIGIT_DBL)(*(*dpp)++) << *numbits_in_dd_p;
+        *numbits_in_dd_p += BITSPERDIG;
+    }
+    else if (*dpp == *dep) {
+        /* higher bits are infinity zeros */
+        *numbits_in_dd_p = (int)sizeof(*ddp) * CHAR_BIT;
+    }
+}
+
+static inline BDIGIT_DBL
+integer_pack_take_lowbits(int n, BDIGIT_DBL *ddp, int *numbits_in_dd_p)
+{
+    BDIGIT_DBL ret;
+    ret = (*ddp) & (((BDIGIT_DBL)1 << n) - 1);
+    *ddp >>= n;
+    *numbits_in_dd_p -= n;
+    return ret;
+}
+
+#if !defined(WORDS_BIGENDIAN)
+static int
+bytes_2comp(unsigned char *buf, size_t len)
+{
+    size_t i;
+    for (i = 0; i < len; i++)
+        buf[i] = ~buf[i];
+    for (i = 0; i < len; i++) {
+        buf[i]++;
+        if (buf[i] != 0)
+            return 0;
+    }
+    return 1;
+}
+#endif
+
+static int
+bary_pack(int sign, BDIGIT *ds, size_t num_bdigits, void *words, size_t numwords, size_t wordsize, size_t nails, int flags)
+{
+    BDIGIT *dp, *de;
+    unsigned char *buf, *bufend;
+
+    dp = ds;
+    de = ds + num_bdigits;
+
+    validate_integer_pack_format(numwords, wordsize, nails, flags,
+            INTEGER_PACK_MSWORD_FIRST|
+            INTEGER_PACK_LSWORD_FIRST|
+            INTEGER_PACK_MSBYTE_FIRST|
+            INTEGER_PACK_LSBYTE_FIRST|
+            INTEGER_PACK_NATIVE_BYTE_ORDER|
+            INTEGER_PACK_2COMP|
+            INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION);
+
+    while (dp < de && de[-1] == 0)
+        de--;
+    if (dp == de) {
+        sign = 0;
+    }
+
+    if (!(flags & INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION)) {
+        if (sign == 0) {
+            MEMZERO(words, unsigned char, numwords * wordsize);
+            return 0;
+        }
+        if (nails == 0 && numwords == 1) {
+            int need_swap = wordsize != 1 &&
+                (flags & INTEGER_PACK_BYTEORDER_MASK) != INTEGER_PACK_NATIVE_BYTE_ORDER &&
+                ((flags & INTEGER_PACK_MSBYTE_FIRST) ? !HOST_BIGENDIAN_P : HOST_BIGENDIAN_P);
+            if (0 < sign || !(flags & INTEGER_PACK_2COMP)) {
+                BDIGIT d;
+                if (wordsize == 1) {
+                    *((unsigned char *)words) = (unsigned char)(d = dp[0]);
+                    return ((1 < de - dp || CLEAR_LOWBITS(d, 8) != 0) ? 2 : 1) * sign;
+                }
+#if defined(HAVE_UINT16_T) && 2 <= SIZEOF_BDIGIT
+                if (wordsize == 2 && (uintptr_t)words % ALIGNOF(uint16_t) == 0) {
+                    uint16_t u = (uint16_t)(d = dp[0]);
+                    if (need_swap) u = swap16(u);
+                    *((uint16_t *)words) = u;
+                    return ((1 < de - dp || CLEAR_LOWBITS(d, 16) != 0) ? 2 : 1) * sign;
+                }
+#endif
+#if defined(HAVE_UINT32_T) && 4 <= SIZEOF_BDIGIT
+                if (wordsize == 4 && (uintptr_t)words % ALIGNOF(uint32_t) == 0) {
+                    uint32_t u = (uint32_t)(d = dp[0]);
+                    if (need_swap) u = swap32(u);
+                    *((uint32_t *)words) = u;
+                    return ((1 < de - dp || CLEAR_LOWBITS(d, 32) != 0) ? 2 : 1) * sign;
+                }
+#endif
+#if defined(HAVE_UINT64_T) && 8 <= SIZEOF_BDIGIT
+                if (wordsize == 8 && (uintptr_t)words % ALIGNOF(uint64_t) == 0) {
+                    uint64_t u = (uint64_t)(d = dp[0]);
+                    if (need_swap) u = swap64(u);
+                    *((uint64_t *)words) = u;
+                    return ((1 < de - dp || CLEAR_LOWBITS(d, 64) != 0) ? 2 : 1) * sign;
+                }
+#endif
+            }
+            else { /* sign < 0 && (flags & INTEGER_PACK_2COMP) */
+                BDIGIT_DBL_SIGNED d;
+                if (wordsize == 1) {
+                    *((unsigned char *)words) = (unsigned char)(d = -(BDIGIT_DBL_SIGNED)dp[0]);
+                    return (1 < de - dp || FILL_LOWBITS(d, 8) != -1) ? -2 : -1;
+                }
+#if defined(HAVE_UINT16_T) && 2 <= SIZEOF_BDIGIT
+                if (wordsize == 2 && (uintptr_t)words % ALIGNOF(uint16_t) == 0) {
+                    uint16_t u = (uint16_t)(d = -(BDIGIT_DBL_SIGNED)dp[0]);
+                    if (need_swap) u = swap16(u);
+                    *((uint16_t *)words) = u;
+                    return (wordsize == SIZEOF_BDIGIT && de - dp == 2 && dp[1] == 1 && dp[0] == 0) ? -1 :
+                        (1 < de - dp || FILL_LOWBITS(d, 16) != -1) ? -2 : -1;
+                }
+#endif
+#if defined(HAVE_UINT32_T) && 4 <= SIZEOF_BDIGIT
+                if (wordsize == 4 && (uintptr_t)words % ALIGNOF(uint32_t) == 0) {
+                    uint32_t u = (uint32_t)(d = -(BDIGIT_DBL_SIGNED)dp[0]);
+                    if (need_swap) u = swap32(u);
+                    *((uint32_t *)words) = u;
+                    return (wordsize == SIZEOF_BDIGIT && de - dp == 2 && dp[1] == 1 && dp[0] == 0) ? -1 :
+                        (1 < de - dp || FILL_LOWBITS(d, 32) != -1) ? -2 : -1;
+                }
+#endif
+#if defined(HAVE_UINT64_T) && 8 <= SIZEOF_BDIGIT
+                if (wordsize == 8 && (uintptr_t)words % ALIGNOF(uint64_t) == 0) {
+                    uint64_t u = (uint64_t)(d = -(BDIGIT_DBL_SIGNED)dp[0]);
+                    if (need_swap) u = swap64(u);
+                    *((uint64_t *)words) = u;
+                    return (wordsize == SIZEOF_BDIGIT && de - dp == 2 && dp[1] == 1 && dp[0] == 0) ? -1 :
+                        (1 < de - dp || FILL_LOWBITS(d, 64) != -1) ? -2 : -1;
+                }
+#endif
+            }
+        }
+#if !defined(WORDS_BIGENDIAN)
+        if (nails == 0 && SIZEOF_BDIGIT == sizeof(BDIGIT) &&
+            (flags & INTEGER_PACK_WORDORDER_MASK) == INTEGER_PACK_LSWORD_FIRST &&
+            (flags & INTEGER_PACK_BYTEORDER_MASK) != INTEGER_PACK_MSBYTE_FIRST) {
+            size_t src_size = (de - dp) * SIZEOF_BDIGIT;
+            size_t dst_size = numwords * wordsize;
+            int overflow = 0;
+            while (0 < src_size && ((unsigned char *)ds)[src_size-1] == 0)
+                src_size--;
+            if (src_size <= dst_size) {
+                MEMCPY(words, dp, char, src_size);
+                MEMZERO((char*)words + src_size, char, dst_size - src_size);
+            }
+            else {
+                MEMCPY(words, dp, char, dst_size);
+                overflow = 1;
+            }
+            if (sign < 0 && (flags & INTEGER_PACK_2COMP)) {
+                int zero_p = bytes_2comp(words, dst_size);
+                if (zero_p && overflow) {
+                    unsigned char *p = (unsigned char *)dp;
+                    if (dst_size == src_size-1 &&
+                        p[dst_size] == 1) {
+                        overflow = 0;
+                    }
+                }
+            }
+            if (overflow)
+                sign *= 2;
+            return sign;
+        }
+#endif
+        if (nails == 0 && SIZEOF_BDIGIT == sizeof(BDIGIT) &&
+            wordsize % SIZEOF_BDIGIT == 0 && (uintptr_t)words % ALIGNOF(BDIGIT) == 0) {
+            size_t bdigits_per_word = wordsize / SIZEOF_BDIGIT;
+            size_t src_num_bdigits = de - dp;
+            size_t dst_num_bdigits = numwords * bdigits_per_word;
+            int overflow = 0;
+            int mswordfirst_p = (flags & INTEGER_PACK_MSWORD_FIRST) != 0;
+            int msbytefirst_p = (flags & INTEGER_PACK_NATIVE_BYTE_ORDER) ? HOST_BIGENDIAN_P :
+                (flags & INTEGER_PACK_MSBYTE_FIRST) != 0;
+            if (src_num_bdigits <= dst_num_bdigits) {
+                MEMCPY(words, dp, BDIGIT, src_num_bdigits);
+                BDIGITS_ZERO((BDIGIT*)words + src_num_bdigits, dst_num_bdigits - src_num_bdigits);
+            }
+            else {
+                MEMCPY(words, dp, BDIGIT, dst_num_bdigits);
+                overflow = 1;
+            }
+            if (sign < 0 && (flags & INTEGER_PACK_2COMP)) {
+                int zero_p = bary_2comp(words, dst_num_bdigits);
+                if (zero_p && overflow &&
+                    dst_num_bdigits == src_num_bdigits-1 &&
+                    dp[dst_num_bdigits] == 1)
+                    overflow = 0;
+            }
+            if (msbytefirst_p != HOST_BIGENDIAN_P) {
+                size_t i;
+                for (i = 0; i < dst_num_bdigits; i++) {
+                    BDIGIT d = ((BDIGIT*)words)[i];
+                    ((BDIGIT*)words)[i] = swap_bdigit(d);
+                }
+            }
+            if (mswordfirst_p ? !msbytefirst_p : msbytefirst_p) {
+                size_t i;
+                BDIGIT *p = words;
+                for (i = 0; i < numwords; i++) {
+                    bary_swap(p, bdigits_per_word);
+                    p += bdigits_per_word;
+                }
+            }
+            if (mswordfirst_p) {
+                bary_swap(words, dst_num_bdigits);
+            }
+            if (overflow)
+                sign *= 2;
+            return sign;
+        }
+    }
+
+    buf = words;
+    bufend = buf + numwords * wordsize;
+
+    if (buf == bufend) {
+        /* overflow if non-zero*/
+        if (!(flags & INTEGER_PACK_2COMP) || 0 <= sign)
+            sign *= 2;
+        else {
+            if (de - dp == 1 && dp[0] == 1)
+                sign = -1; /* val == -1 == -2**(numwords*(wordsize*CHAR_BIT-nails)) */
+            else
+                sign = -2; /* val < -1 == -2**(numwords*(wordsize*CHAR_BIT-nails)) */
+        }
+    }
+    else if (dp == de) {
+        memset(buf, '\0', bufend - buf);
+    }
+    else if (dp < de && buf < bufend) {
+        int word_num_partialbits;
+        size_t word_num_fullbytes;
+
+        ssize_t word_step;
+        size_t byte_start;
+        int byte_step;
+
+        size_t word_start, word_last;
+        unsigned char *wordp, *last_wordp;
+        BDIGIT_DBL dd;
+        int numbits_in_dd;
+
+        integer_pack_loop_setup(numwords, wordsize, nails, flags,
+            &word_num_fullbytes, &word_num_partialbits,
+            &word_start, &word_step, &word_last, &byte_start, &byte_step);
+
+        wordp = buf + word_start;
+        last_wordp = buf + word_last;
+
+        dd = 0;
+        numbits_in_dd = 0;
+
+#define FILL_DD \
+    integer_pack_fill_dd(&dp, &de, &dd, &numbits_in_dd)
+#define TAKE_LOWBITS(n) \
+    integer_pack_take_lowbits(n, &dd, &numbits_in_dd)
+
+        while (1) {
+            size_t index_in_word = 0;
+            unsigned char *bytep = wordp + byte_start;
+            while (index_in_word < word_num_fullbytes) {
+                FILL_DD;
+                *bytep = TAKE_LOWBITS(CHAR_BIT);
+                bytep += byte_step;
+                index_in_word++;
+            }
+            if (word_num_partialbits) {
+                FILL_DD;
+                *bytep = TAKE_LOWBITS(word_num_partialbits);
+                bytep += byte_step;
+                index_in_word++;
+            }
+            while (index_in_word < wordsize) {
+                *bytep = 0;
+                bytep += byte_step;
+                index_in_word++;
+            }
+
+            if (wordp == last_wordp)
+                break;
+
+            wordp += word_step;
+        }
+        FILL_DD;
+        /* overflow tests */
+        if (dp != de || 1 < dd) {
+            /* 2**(numwords*(wordsize*CHAR_BIT-nails)+1) <= abs(val) */
+            sign *= 2;
+        }
+        else if (dd == 1) {
+            /* 2**(numwords*(wordsize*CHAR_BIT-nails)) <= abs(val) < 2**(numwords*(wordsize*CHAR_BIT-nails)+1) */
+            if (!(flags & INTEGER_PACK_2COMP) || 0 <= sign)
+                sign *= 2;
+            else { /* overflow_2comp && sign == -1 */
+                /* test lower bits are all zero. */
+                dp = ds;
+                while (dp < de && *dp == 0)
+                    dp++;
+                if (de - dp == 1 && /* only one non-zero word. */
+                    POW2_P(*dp)) /* *dp contains only one bit set. */
+                    sign = -1; /* val == -2**(numwords*(wordsize*CHAR_BIT-nails)) */
+                else
+                    sign = -2; /* val < -2**(numwords*(wordsize*CHAR_BIT-nails)) */
+            }
+        }
+    }
+
+    if ((flags & INTEGER_PACK_2COMP) && (sign < 0 && numwords != 0)) {
+        unsigned char *buf;
+
+        int word_num_partialbits;
+        size_t word_num_fullbytes;
+
+        ssize_t word_step;
+        size_t byte_start;
+        int byte_step;
+
+        size_t word_start, word_last;
+        unsigned char *wordp, *last_wordp;
+
+        unsigned int partialbits_mask;
+        int carry;
+
+        integer_pack_loop_setup(numwords, wordsize, nails, flags,
+            &word_num_fullbytes, &word_num_partialbits,
+            &word_start, &word_step, &word_last, &byte_start, &byte_step);
+
+        partialbits_mask = (1 << word_num_partialbits) - 1;
+
+        buf = words;
+        wordp = buf + word_start;
+        last_wordp = buf + word_last;
+
+        carry = 1;
+        while (1) {
+            size_t index_in_word = 0;
+            unsigned char *bytep = wordp + byte_start;
+            while (index_in_word < word_num_fullbytes) {
+                carry += (unsigned char)~*bytep;
+                *bytep = (unsigned char)carry;
+                carry >>= CHAR_BIT;
+                bytep += byte_step;
+                index_in_word++;
+            }
+            if (word_num_partialbits) {
+                carry += (*bytep & partialbits_mask) ^ partialbits_mask;
+                *bytep = carry & partialbits_mask;
+                carry >>= word_num_partialbits;
+                bytep += byte_step;
+                index_in_word++;
+            }
+
+            if (wordp == last_wordp)
+                break;
+
+            wordp += word_step;
+        }
+    }
+
+    return sign;
+#undef FILL_DD
+#undef TAKE_LOWBITS
+}
+
+static size_t
+integer_unpack_num_bdigits_small(size_t numwords, size_t wordsize, size_t nails, int *nlp_bits_ret)
+{
+    /* nlp_bits stands for number of leading padding bits */
+    size_t num_bits = (wordsize * CHAR_BIT - nails) * numwords;
+    size_t num_bdigits = (num_bits + BITSPERDIG - 1) / BITSPERDIG;
+    *nlp_bits_ret = (int)(num_bdigits * BITSPERDIG - num_bits);
+    return num_bdigits;
+}
+
+static size_t
+integer_unpack_num_bdigits_generic(size_t numwords, size_t wordsize, size_t nails, int *nlp_bits_ret)
+{
+    /* BITSPERDIG = SIZEOF_BDIGIT * CHAR_BIT */
+    /* num_bits = (wordsize * CHAR_BIT - nails) * numwords */
+    /* num_bdigits = (num_bits + BITSPERDIG - 1) / BITSPERDIG */
+
+    /* num_bits = CHAR_BIT * (wordsize * numwords) - nails * numwords = CHAR_BIT * num_bytes1 - nails * numwords */
+    size_t num_bytes1 = wordsize * numwords;
+
+    /* q1 * CHAR_BIT + r1 = numwords */
+    size_t q1 = numwords / CHAR_BIT;
+    size_t r1 = numwords % CHAR_BIT;
+
+    /* num_bits = CHAR_BIT * num_bytes1 - nails * (q1 * CHAR_BIT + r1) = CHAR_BIT * num_bytes2 - nails * r1 */
+    size_t num_bytes2 = num_bytes1 - nails * q1;
+
+    /* q2 * CHAR_BIT + r2 = nails */
+    size_t q2 = nails / CHAR_BIT;
+    size_t r2 = nails % CHAR_BIT;
+
+    /* num_bits = CHAR_BIT * num_bytes2 - (q2 * CHAR_BIT + r2) * r1 = CHAR_BIT * num_bytes3 - r1 * r2 */
+    size_t num_bytes3 = num_bytes2 - q2 * r1;
+
+    /* q3 * BITSPERDIG + r3 = num_bytes3 */
+    size_t q3 = num_bytes3 / BITSPERDIG;
+    size_t r3 = num_bytes3 % BITSPERDIG;
+
+    /* num_bits = CHAR_BIT * (q3 * BITSPERDIG + r3) - r1 * r2 = BITSPERDIG * num_digits1 + CHAR_BIT * r3 - r1 * r2 */
+    size_t num_digits1 = CHAR_BIT * q3;
+
+    /*
+     * if CHAR_BIT * r3 >= r1 * r2
+     *   CHAR_BIT * r3 - r1 * r2 = CHAR_BIT * BITSPERDIG - (CHAR_BIT * BITSPERDIG - (CHAR_BIT * r3 - r1 * r2))
+     *   q4 * BITSPERDIG + r4 = CHAR_BIT * BITSPERDIG - (CHAR_BIT * r3 - r1 * r2)
+     *   num_bits = BITSPERDIG * num_digits1 + CHAR_BIT * BITSPERDIG - (q4 * BITSPERDIG + r4) = BITSPERDIG * num_digits2 - r4
+     * else
+     *   q4 * BITSPERDIG + r4 = -(CHAR_BIT * r3 - r1 * r2)
+     *   num_bits = BITSPERDIG * num_digits1 - (q4 * BITSPERDIG + r4) = BITSPERDIG * num_digits2 - r4
+     * end
+     */
+
+    if (CHAR_BIT * r3 >= r1 * r2) {
+        size_t tmp1 = CHAR_BIT * BITSPERDIG - (CHAR_BIT * r3 - r1 * r2);
+        size_t q4 = tmp1 / BITSPERDIG;
+        int r4 = (int)(tmp1 % BITSPERDIG);
+        size_t num_digits2 = num_digits1 + CHAR_BIT - q4;
+        *nlp_bits_ret = r4;
+        return num_digits2;
+    }
+    else {
+        size_t tmp1 = r1 * r2 - CHAR_BIT * r3;
+        size_t q4 = tmp1 / BITSPERDIG;
+        int r4 = (int)(tmp1 % BITSPERDIG);
+        size_t num_digits2 = num_digits1 - q4;
+        *nlp_bits_ret = r4;
+        return num_digits2;
+    }
+}
+
+static size_t
+integer_unpack_num_bdigits(size_t numwords, size_t wordsize, size_t nails, int *nlp_bits_ret)
+{
+    size_t num_bdigits;
+
+    if (numwords <= (SIZE_MAX - (BITSPERDIG-1)) / CHAR_BIT / wordsize) {
+        num_bdigits = integer_unpack_num_bdigits_small(numwords, wordsize, nails, nlp_bits_ret);
+#ifdef DEBUG_INTEGER_PACK
+        {
+            int nlp_bits1;
+            size_t num_bdigits1 = integer_unpack_num_bdigits_generic(numwords, wordsize, nails, &nlp_bits1);
+            assert(num_bdigits == num_bdigits1);
+            assert(*nlp_bits_ret == nlp_bits1);
+        }
+#endif
+    }
+    else {
+        num_bdigits = integer_unpack_num_bdigits_generic(numwords, wordsize, nails, nlp_bits_ret);
+    }
+    return num_bdigits;
+}
+
+static inline void
+integer_unpack_push_bits(int data, int numbits, BDIGIT_DBL *ddp, int *numbits_in_dd_p, BDIGIT **dpp)
+{
+    (*ddp) |= ((BDIGIT_DBL)data) << (*numbits_in_dd_p);
+    *numbits_in_dd_p += numbits;
+    while (BITSPERDIG <= *numbits_in_dd_p) {
+        *(*dpp)++ = BIGLO(*ddp);
+        *ddp = BIGDN(*ddp);
+        *numbits_in_dd_p -= BITSPERDIG;
+    }
+}
+
+static int
+integer_unpack_single_bdigit(BDIGIT u, size_t size, int flags, BDIGIT *dp)
+{
+    int sign;
+    if (flags & INTEGER_PACK_2COMP) {
+        sign = (flags & INTEGER_PACK_NEGATIVE) ?
+            ((size == SIZEOF_BDIGIT && u == 0) ? -2 : -1) :
+            ((u >> (size * CHAR_BIT - 1)) ? -1 : 1);
+        if (sign < 0) {
+            u |= LSHIFTX(BDIGMAX, size * CHAR_BIT);
+            u = BIGLO(1 + ~u);
+        }
+    }
+    else
+        sign = (flags & INTEGER_PACK_NEGATIVE) ? -1 : 1;
+    *dp = u;
+    return sign;
+}
+
+static int
+bary_unpack_internal(BDIGIT *bdigits, size_t num_bdigits, const void *words, size_t numwords, size_t wordsize, size_t nails, int flags, int nlp_bits)
+{
+    int sign;
+    const unsigned char *buf = words;
+    BDIGIT *dp;
+    BDIGIT *de;
+
+    dp = bdigits;
+    de = dp + num_bdigits;
+
+    if (!(flags & INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION)) {
+        if (nails == 0 && numwords == 1) {
+            int need_swap = wordsize != 1 &&
+                (flags & INTEGER_PACK_BYTEORDER_MASK) != INTEGER_PACK_NATIVE_BYTE_ORDER &&
+                ((flags & INTEGER_PACK_MSBYTE_FIRST) ? !HOST_BIGENDIAN_P : HOST_BIGENDIAN_P);
+            if (wordsize == 1) {
+                return integer_unpack_single_bdigit(*(uint8_t *)buf, sizeof(uint8_t), flags, dp);
+            }
+#if defined(HAVE_UINT16_T) && 2 <= SIZEOF_BDIGIT
+            if (wordsize == 2 && (uintptr_t)words % ALIGNOF(uint16_t) == 0) {
+                uint16_t u = *(uint16_t *)buf;
+                return integer_unpack_single_bdigit(need_swap ? swap16(u) : u, sizeof(uint16_t), flags, dp);
+            }
+#endif
+#if defined(HAVE_UINT32_T) && 4 <= SIZEOF_BDIGIT
+            if (wordsize == 4 && (uintptr_t)words % ALIGNOF(uint32_t) == 0) {
+                uint32_t u = *(uint32_t *)buf;
+                return integer_unpack_single_bdigit(need_swap ? swap32(u) : u, sizeof(uint32_t), flags, dp);
+            }
+#endif
+#if defined(HAVE_UINT64_T) && 8 <= SIZEOF_BDIGIT
+            if (wordsize == 8 && (uintptr_t)words % ALIGNOF(uint64_t) == 0) {
+                uint64_t u = *(uint64_t *)buf;
+                return integer_unpack_single_bdigit(need_swap ? swap64(u) : u, sizeof(uint64_t), flags, dp);
+            }
+#endif
+        }
+#if !defined(WORDS_BIGENDIAN)
+        if (nails == 0 && SIZEOF_BDIGIT == sizeof(BDIGIT) &&
+            (flags & INTEGER_PACK_WORDORDER_MASK) == INTEGER_PACK_LSWORD_FIRST &&
+            (flags & INTEGER_PACK_BYTEORDER_MASK) != INTEGER_PACK_MSBYTE_FIRST) {
+            size_t src_size = numwords * wordsize;
+            size_t dst_size = num_bdigits * SIZEOF_BDIGIT;
+            MEMCPY(dp, words, char, src_size);
+            if (flags & INTEGER_PACK_2COMP) {
+                if (flags & INTEGER_PACK_NEGATIVE) {
+                    int zero_p;
+                    memset((char*)dp + src_size, 0xff, dst_size - src_size);
+                    zero_p = bary_2comp(dp, num_bdigits);
+                    sign = zero_p ? -2 : -1;
+                }
+                else if (buf[src_size-1] >> (CHAR_BIT-1)) {
+                    memset((char*)dp + src_size, 0xff, dst_size - src_size);
+                    bary_2comp(dp, num_bdigits);
+                    sign = -1;
+                }
+                else {
+                    MEMZERO((char*)dp + src_size, char, dst_size - src_size);
+                    sign = 1;
+                }
+            }
+            else {
+                MEMZERO((char*)dp + src_size, char, dst_size - src_size);
+                sign = (flags & INTEGER_PACK_NEGATIVE) ? -1 : 1;
+            }
+            return sign;
+        }
+#endif
+        if (nails == 0 && SIZEOF_BDIGIT == sizeof(BDIGIT) &&
+            wordsize % SIZEOF_BDIGIT == 0) {
+            size_t bdigits_per_word = wordsize / SIZEOF_BDIGIT;
+            int mswordfirst_p = (flags & INTEGER_PACK_MSWORD_FIRST) != 0;
+            int msbytefirst_p = (flags & INTEGER_PACK_NATIVE_BYTE_ORDER) ? HOST_BIGENDIAN_P :
+                (flags & INTEGER_PACK_MSBYTE_FIRST) != 0;
+            MEMCPY(dp, words, BDIGIT, numwords*bdigits_per_word);
+            if (mswordfirst_p) {
+                bary_swap(dp, num_bdigits);
+            }
+            if (mswordfirst_p ? !msbytefirst_p : msbytefirst_p) {
+                size_t i;
+                BDIGIT *p = dp;
+                for (i = 0; i < numwords; i++) {
+                    bary_swap(p, bdigits_per_word);
+                    p += bdigits_per_word;
+                }
+            }
+            if (msbytefirst_p != HOST_BIGENDIAN_P) {
+                BDIGIT *p;
+                for (p = dp; p < de; p++) {
+                    BDIGIT d = *p;
+                    *p = swap_bdigit(d);
+                }
+            }
+            if (flags & INTEGER_PACK_2COMP) {
+                if (flags & INTEGER_PACK_NEGATIVE) {
+                    int zero_p = bary_2comp(dp, num_bdigits);
+                    sign = zero_p ? -2 : -1;
+                }
+                else if (BDIGIT_MSB(de[-1])) {
+                    bary_2comp(dp, num_bdigits);
+                    sign = -1;
+                }
+                else {
+                    sign = 1;
+                }
+            }
+            else {
+                sign = (flags & INTEGER_PACK_NEGATIVE) ? -1 : 1;
+            }
+            return sign;
+        }
+    }
+
+    if (num_bdigits != 0) {
+        int word_num_partialbits;
+        size_t word_num_fullbytes;
+
+        ssize_t word_step;
+        size_t byte_start;
+        int byte_step;
+
+        size_t word_start, word_last;
+        const unsigned char *wordp, *last_wordp;
+        BDIGIT_DBL dd;
+        int numbits_in_dd;
+
+        integer_pack_loop_setup(numwords, wordsize, nails, flags,
+            &word_num_fullbytes, &word_num_partialbits,
+            &word_start, &word_step, &word_last, &byte_start, &byte_step);
+
+        wordp = buf + word_start;
+        last_wordp = buf + word_last;
+
+        dd = 0;
+        numbits_in_dd = 0;
+
+#define PUSH_BITS(data, numbits) \
+        integer_unpack_push_bits(data, numbits, &dd, &numbits_in_dd, &dp)
+
+        while (1) {
+            size_t index_in_word = 0;
+            const unsigned char *bytep = wordp + byte_start;
+            while (index_in_word < word_num_fullbytes) {
+                PUSH_BITS(*bytep, CHAR_BIT);
+                bytep += byte_step;
+                index_in_word++;
+            }
+            if (word_num_partialbits) {
+                PUSH_BITS(*bytep & ((1 << word_num_partialbits) - 1), word_num_partialbits);
+                bytep += byte_step;
+                index_in_word++;
+            }
+
+            if (wordp == last_wordp)
+                break;
+
+            wordp += word_step;
+        }
+        if (dd)
+            *dp++ = (BDIGIT)dd;
+        assert(dp <= de);
+        while (dp < de)
+            *dp++ = 0;
+#undef PUSH_BITS
+    }
+
+    if (!(flags & INTEGER_PACK_2COMP)) {
+        sign = (flags & INTEGER_PACK_NEGATIVE) ? -1 : 1;
+    }
+    else {
+        if (nlp_bits) {
+            if ((flags & INTEGER_PACK_NEGATIVE) ||
+                (bdigits[num_bdigits-1] >> (BITSPERDIG - nlp_bits - 1))) {
+                bdigits[num_bdigits-1] |= BIGLO(BDIGMAX << (BITSPERDIG - nlp_bits));
+                sign = -1;
+            }
+            else {
+                sign = 1;
+            }
+        }
+        else {
+            if (flags & INTEGER_PACK_NEGATIVE) {
+                sign = bary_zero_p(bdigits, num_bdigits) ? -2 : -1;
+            }
+            else {
+                if (num_bdigits != 0 && BDIGIT_MSB(bdigits[num_bdigits-1]))
+                    sign = -1;
+                else
+                    sign = 1;
+            }
+        }
+        if (sign == -1 && num_bdigits != 0) {
+            bary_2comp(bdigits, num_bdigits);
+        }
+    }
+
+    return sign;
+}
+
+static void
+bary_unpack(BDIGIT *bdigits, size_t num_bdigits, const void *words, size_t numwords, size_t wordsize, size_t nails, int flags)
+{
+    size_t num_bdigits0;
+    int nlp_bits;
+    int sign;
+
+    validate_integer_pack_format(numwords, wordsize, nails, flags,
+            INTEGER_PACK_MSWORD_FIRST|
+            INTEGER_PACK_LSWORD_FIRST|
+            INTEGER_PACK_MSBYTE_FIRST|
+            INTEGER_PACK_LSBYTE_FIRST|
+            INTEGER_PACK_NATIVE_BYTE_ORDER|
+            INTEGER_PACK_2COMP|
+            INTEGER_PACK_FORCE_BIGNUM|
+            INTEGER_PACK_NEGATIVE|
+            INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION);
+
+    num_bdigits0 = integer_unpack_num_bdigits(numwords, wordsize, nails, &nlp_bits);
+
+    assert(num_bdigits0 <= num_bdigits);
+
+    sign = bary_unpack_internal(bdigits, num_bdigits0, words, numwords, wordsize, nails, flags, nlp_bits);
+
+    if (num_bdigits0 < num_bdigits) {
+        BDIGITS_ZERO(bdigits + num_bdigits0, num_bdigits - num_bdigits0);
+        if (sign == -2) {
+            bdigits[num_bdigits0] = 1;
+        }
+    }
+}
+
+static int
+bary_subb(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, int borrow)
+{
+    BDIGIT_DBL_SIGNED num;
+    size_t i;
+    size_t sn;
+
+    assert(xn <= zn);
+    assert(yn <= zn);
+
+    sn = xn < yn ? xn : yn;
+
+    num = borrow ? -1 : 0;
+    for (i = 0; i < sn; i++) {
+	num += (BDIGIT_DBL_SIGNED)xds[i] - yds[i];
+	zds[i] = BIGLO(num);
+	num = BIGDN(num);
+    }
+    if (yn <= xn) {
+        for (; i < xn; i++) {
+            if (num == 0) goto num_is_zero;
+            num += xds[i];
+            zds[i] = BIGLO(num);
+            num = BIGDN(num);
+        }
+    }
+    else {
+        for (; i < yn; i++) {
+            num -= yds[i];
+            zds[i] = BIGLO(num);
+            num = BIGDN(num);
+        }
+    }
+    if (num == 0) goto num_is_zero;
+    for (; i < zn; i++) {
+	zds[i] = BDIGMAX;
+    }
+    return 1;
+
+  num_is_zero:
+    if (xds == zds && xn == zn)
+        return 0;
+    for (; i < xn; i++) {
+	zds[i] = xds[i];
+    }
+    for (; i < zn; i++) {
+	zds[i] = 0;
+    }
+    return 0;
+}
+
+static int
+bary_sub(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+    return bary_subb(zds, zn, xds, xn, yds, yn, 0);
+}
+
+static int
+bary_sub_one(BDIGIT *zds, size_t zn)
+{
+    return bary_subb(zds, zn, zds, zn, NULL, 0, 1);
+}
+
+static int
+bary_addc(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, int carry)
+{
+    BDIGIT_DBL num;
+    size_t i;
+
+    assert(xn <= zn);
+    assert(yn <= zn);
+
+    if (xn > yn) {
+	const BDIGIT *tds;
+	tds = xds; xds = yds; yds = tds;
+	i = xn; xn = yn; yn = i;
+    }
+
+    num = carry ? 1 : 0;
+    for (i = 0; i < xn; i++) {
+	num += (BDIGIT_DBL)xds[i] + yds[i];
+	zds[i] = BIGLO(num);
+	num = BIGDN(num);
+    }
+    for (; i < yn; i++) {
+        if (num == 0) goto num_is_zero;
+	num += yds[i];
+	zds[i] = BIGLO(num);
+	num = BIGDN(num);
+    }
+    for (; i < zn; i++) {
+        if (num == 0) goto num_is_zero;
+	zds[i] = BIGLO(num);
+	num = BIGDN(num);
+    }
+    return num != 0;
+
+  num_is_zero:
+    if (yds == zds && yn == zn)
+        return 0;
+    for (; i < yn; i++) {
+	zds[i] = yds[i];
+    }
+    for (; i < zn; i++) {
+	zds[i] = 0;
+    }
+    return 0;
+}
+
+static int
+bary_add(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+    return bary_addc(zds, zn, xds, xn, yds, yn, 0);
+}
+
+static int
+bary_add_one(BDIGIT *ds, size_t n)
+{
+    size_t i;
+    for (i = 0; i < n; i++) {
+	ds[i] = BIGLO(ds[i]+1);
+        if (ds[i] != 0)
+            return 0;
+    }
+    return 1;
+}
+
+static void
+bary_mul_single(BDIGIT *zds, size_t zn, BDIGIT x, BDIGIT y)
+{
+    BDIGIT_DBL n;
+
+    assert(2 <= zn);
+
+    n = (BDIGIT_DBL)x * y;
+    bdigitdbl2bary(zds, 2, n);
+    BDIGITS_ZERO(zds + 2, zn - 2);
+}
+
+static int
+bary_muladd_1xN(BDIGIT *zds, size_t zn, BDIGIT x, const BDIGIT *yds, size_t yn)
+{
+    BDIGIT_DBL n;
+    BDIGIT_DBL dd;
+    size_t j;
+
+    assert(zn > yn);
+
+    if (x == 0)
+        return 0;
+    dd = x;
+    n = 0;
+    for (j = 0; j < yn; j++) {
+        BDIGIT_DBL ee = n + dd * yds[j];
+        if (ee) {
+            n = zds[j] + ee;
+            zds[j] = BIGLO(n);
+            n = BIGDN(n);
+        }
+        else {
+            n = 0;
+        }
+
+    }
+    for (; j < zn; j++) {
+        if (n == 0)
+            break;
+        n += zds[j];
+        zds[j] = BIGLO(n);
+        n = BIGDN(n);
+    }
+    return n != 0;
+}
+
+static BDIGIT_DBL_SIGNED
+bigdivrem_mulsub(BDIGIT *zds, size_t zn, BDIGIT x, const BDIGIT *yds, size_t yn)
+{
+    size_t i;
+    BDIGIT_DBL t2;
+    BDIGIT_DBL_SIGNED num;
+
+    assert(zn == yn + 1);
+
+    num = 0;
+    t2 = 0;
+    i = 0;
+
+    do {
+        BDIGIT_DBL ee;
+        t2 += (BDIGIT_DBL)yds[i] * x;
+        ee = num - BIGLO(t2);
+        num = (BDIGIT_DBL)zds[i] + ee;
+        if (ee) zds[i] = BIGLO(num);
+        num = BIGDN(num);
+        t2 = BIGDN(t2);
+    } while (++i < yn);
+    num += zds[i] - t2; /* borrow from high digit; don't update */
+    return num;
+}
+
+static int
+bary_mulsub_1xN(BDIGIT *zds, size_t zn, BDIGIT x, const BDIGIT *yds, size_t yn)
+{
+    BDIGIT_DBL_SIGNED num;
+
+    assert(zn == yn + 1);
+
+    num = bigdivrem_mulsub(zds, zn, x, yds, yn);
+    zds[yn] = BIGLO(num);
+    if (BIGDN(num))
+        return 1;
+    return 0;
+}
+
+static void
+bary_mul_normal(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+    size_t i;
+
+    assert(xn + yn <= zn);
+
+    BDIGITS_ZERO(zds, zn);
+    for (i = 0; i < xn; i++) {
+        bary_muladd_1xN(zds+i, zn-i, xds[i], yds, yn);
+    }
+}
+
+VALUE
+rb_big_mul_normal(VALUE x, VALUE y)
+{
+    size_t xn = BIGNUM_LEN(x), yn = BIGNUM_LEN(y), zn = xn + yn;
+    VALUE z = bignew(zn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+    bary_mul_normal(BDIGITS(z), zn, BDIGITS(x), xn, BDIGITS(y), yn);
+    RB_GC_GUARD(x);
+    RB_GC_GUARD(y);
+    return z;
+}
+
+/* efficient squaring (2 times faster than normal multiplication)
+ * ref: Handbook of Applied Cryptography, Algorithm 14.16
+ *      http://www.cacr.math.uwaterloo.ca/hac/about/chap14.pdf
+ */
+static void
+bary_sq_fast(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn)
+{
+    size_t i, j;
+    BDIGIT_DBL c, v, w;
+    BDIGIT vl;
+    int vh;
+
+    assert(xn * 2 <= zn);
+
+    BDIGITS_ZERO(zds, zn);
+
+    if (xn == 0)
+        return;
+
+    for (i = 0; i < xn-1; i++) {
+	v = (BDIGIT_DBL)xds[i];
+	if (!v)
+            continue;
+	c = (BDIGIT_DBL)zds[i + i] + v * v;
+	zds[i + i] = BIGLO(c);
+	c = BIGDN(c);
+	v *= 2;
+        vl = BIGLO(v);
+        vh = (int)BIGDN(v);
+	for (j = i + 1; j < xn; j++) {
+	    w = (BDIGIT_DBL)xds[j];
+	    c += (BDIGIT_DBL)zds[i + j] + vl * w;
+	    zds[i + j] = BIGLO(c);
+	    c = BIGDN(c);
+	    if (vh)
+                c += w;
+	}
+	if (c) {
+	    c += (BDIGIT_DBL)zds[i + xn];
+	    zds[i + xn] = BIGLO(c);
+	    c = BIGDN(c);
+            if (c)
+                zds[i + xn + 1] += (BDIGIT)c;
+	}
+    }
+
+    /* i == xn-1 */
+    v = (BDIGIT_DBL)xds[i];
+    if (!v)
+        return;
+    c = (BDIGIT_DBL)zds[i + i] + v * v;
+    zds[i + i] = BIGLO(c);
+    c = BIGDN(c);
+    if (c) {
+        zds[i + xn] += BIGLO(c);
+    }
+}
+
+VALUE
+rb_big_sq_fast(VALUE x)
+{
+    size_t xn = BIGNUM_LEN(x), zn = 2 * xn;
+    VALUE z = bignew(zn, 1);
+    bary_sq_fast(BDIGITS(z), zn, BDIGITS(x), xn);
+    RB_GC_GUARD(x);
+    return z;
+}
+
+/* balancing multiplication by slicing larger argument */
+static void
+bary_mul_balance_with_mulfunc(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, BDIGIT *wds, size_t wn, mulfunc_t *mulfunc)
+{
+    VALUE work = 0;
+    size_t yn0 = yn;
+    size_t r, n;
+
+    assert(xn + yn <= zn);
+    assert(xn <= yn);
+    assert(!KARATSUBA_BALANCED(xn, yn) || !TOOM3_BALANCED(xn, yn));
+
+    BDIGITS_ZERO(zds, xn);
+
+    n = 0;
+    while (yn > 0) {
+        BDIGIT *tds;
+        size_t tn;
+	r = xn > yn ? yn : xn;
+        tn = xn + r;
+        if (2 * (xn + r) <= zn - n) {
+            tds = zds + n + xn + r;
+            mulfunc(tds, tn, xds, xn, yds + n, r, wds, wn);
+            BDIGITS_ZERO(zds + n + xn, r);
+            bary_add(zds + n, tn,
+                     zds + n, tn,
+                     tds, tn);
+        }
+        else {
+            if (wn < xn) {
+                wn = xn;
+                wds = ALLOCV_N(BDIGIT, work, wn);
+            }
+            tds = zds + n;
+            MEMCPY(wds, zds + n, BDIGIT, xn);
+            mulfunc(tds, tn, xds, xn, yds + n, r, wds+xn, wn-xn);
+            bary_add(zds + n, tn,
+                     zds + n, tn,
+                     wds, xn);
+        }
+	yn -= r;
+	n += r;
+    }
+    BDIGITS_ZERO(zds+xn+yn0, zn - (xn+yn0));
+
+    if (work)
+        ALLOCV_END(work);
+}
+
+VALUE
+rb_big_mul_balance(VALUE x, VALUE y)
+{
+    size_t xn = BIGNUM_LEN(x), yn = BIGNUM_LEN(y), zn = xn + yn;
+    VALUE z = bignew(zn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+    bary_mul_balance_with_mulfunc(BDIGITS(z), zn, BDIGITS(x), xn, BDIGITS(y), yn, NULL, 0, bary_mul_toom3_start);
+    RB_GC_GUARD(x);
+    RB_GC_GUARD(y);
+    return z;
+}
+
+/* multiplication by karatsuba method */
+static void
+bary_mul_karatsuba(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, BDIGIT *wds, size_t wn)
+{
+    VALUE work = 0;
+
+    size_t n;
+    int sub_p, borrow, carry1, carry2, carry3;
+
+    int odd_y = 0;
+    int odd_xy = 0;
+    int sq;
+
+    const BDIGIT *xds0, *xds1, *yds0, *yds1;
+    BDIGIT *zds0, *zds1, *zds2, *zds3;
+
+    assert(xn + yn <= zn);
+    assert(xn <= yn);
+    assert(yn < 2 * xn);
+
+    sq = xds == yds && xn == yn;
+
+    if (yn & 1) {
+        odd_y = 1;
+        yn--;
+        if (yn < xn) {
+            odd_xy = 1;
+            xn--;
+        }
+    }
+
+    n = yn / 2;
+
+    assert(n < xn);
+
+    if (wn < n) {
+        /* This function itself needs only n BDIGITs for work area.
+         * However this function calls bary_mul_karatsuba and
+         * bary_mul_balance recursively.
+         * 2n BDIGITs are enough to avoid allocations in
+         * the recursively called functions.
+         */
+        wn = 2*n;
+        wds = ALLOCV_N(BDIGIT, work, wn);
+    }
+
+    /* Karatsuba algorithm:
+     *
+     * x = x0 + r*x1
+     * y = y0 + r*y1
+     * z = x*y
+     *   = (x0 + r*x1) * (y0 + r*y1)
+     *   = x0*y0 + r*(x1*y0 + x0*y1) + r*r*x1*y1
+     *   = x0*y0 + r*(x0*y0 + x1*y1 - (x1-x0)*(y1-y0)) + r*r*x1*y1
+     *   = x0*y0 + r*(x0*y0 + x1*y1 - (x0-x1)*(y0-y1)) + r*r*x1*y1
+     */
+
+    xds0 = xds;
+    xds1 = xds + n;
+    yds0 = yds;
+    yds1 = yds + n;
+    zds0 = zds;
+    zds1 = zds + n;
+    zds2 = zds + 2*n;
+    zds3 = zds + 3*n;
+
+    sub_p = 1;
+
+    /* zds0:? zds1:? zds2:? zds3:? wds:? */
+
+    if (bary_sub(zds0, n, xds, n, xds+n, xn-n)) {
+        bary_2comp(zds0, n);
+        sub_p = !sub_p;
+    }
+
+    /* zds0:|x1-x0| zds1:? zds2:? zds3:? wds:? */
+
+    if (sq) {
+        sub_p = 1;
+        bary_mul_karatsuba_start(zds1, 2*n, zds0, n, zds0, n, wds, wn);
+    }
+    else {
+        if (bary_sub(wds, n, yds, n, yds+n, n)) {
+            bary_2comp(wds, n);
+            sub_p = !sub_p;
+        }
+
+        /* zds0:|x1-x0| zds1:? zds2:? zds3:? wds:|y1-y0| */
+
+        bary_mul_karatsuba_start(zds1, 2*n, zds0, n, wds, n, wds+n, wn-n);
+    }
+
+    /* zds0:|x1-x0| zds1,zds2:|x1-x0|*|y1-y0| zds3:? wds:|y1-y0| */
+
+    borrow = 0;
+    if (sub_p) {
+        borrow = !bary_2comp(zds1, 2*n);
+    }
+    /* zds0:|x1-x0| zds1,zds2:-?|x1-x0|*|y1-y0| zds3:? wds:|y1-y0| */
+
+    MEMCPY(wds, zds1, BDIGIT, n);
+
+    /* zds0:|x1-x0| zds1,zds2:-?|x1-x0|*|y1-y0| zds3:? wds:lo(-?|x1-x0|*|y1-y0|) */
+
+    bary_mul_karatsuba_start(zds0, 2*n, xds0, n, yds0, n, wds+n, wn-n);
+
+    /* zds0,zds1:x0*y0 zds2:hi(-?|x1-x0|*|y1-y0|) zds3:? wds:lo(-?|x1-x0|*|y1-y0|) */
+
+    carry1 = bary_add(wds, n, wds, n, zds0, n);
+    carry1 = bary_addc(zds2, n, zds2, n, zds1, n, carry1);
+
+    /* zds0,zds1:x0*y0 zds2:hi(x0*y0-?|x1-x0|*|y1-y0|) zds3:? wds:lo(x0*y0-?|x1-x0|*|y1-y0|) */
+
+    carry2 = bary_add(zds1, n, zds1, n, wds, n);
+
+    /* zds0:lo(x0*y0) zds1:hi(x0*y0)+lo(x0*y0-?|x1-x0|*|y1-y0|) zds2:hi(x0*y0-?|x1-x0|*|y1-y0|) zds3:? wds:lo(x0*y0-?|x1-x0|*|y1-y0|) */
+
+    MEMCPY(wds, zds2, BDIGIT, n);
+
+    /* zds0:lo(x0*y0) zds1:hi(x0*y0)+lo(x0*y0-?|x1-x0|*|y1-y0|) zds2:_ zds3:? wds:hi(x0*y0-?|x1-x0|*|y1-y0|) */
+
+    bary_mul_karatsuba_start(zds2, zn-2*n, xds1, xn-n, yds1, n, wds+n, wn-n);
+
+    /* zds0:lo(x0*y0) zds1:hi(x0*y0)+lo(x0*y0-?|x1-x0|*|y1-y0|) zds2,zds3:x1*y1 wds:hi(x0*y0-?|x1-x0|*|y1-y0|) */
+
+    carry3 = bary_add(zds1, n, zds1, n, zds2, n);
+
+    /* zds0:lo(x0*y0) zds1:hi(x0*y0)+lo(x0*y0-?|x1-x0|*|y1-y0|)+lo(x1*y1) zds2,zds3:x1*y1 wds:hi(x0*y0-?|x1-x0|*|y1-y0|) */
+
+    carry3 = bary_addc(zds2, n, zds2, n, zds3, (4*n < zn ? n : zn-3*n), carry3);
+
+    /* zds0:lo(x0*y0) zds1:hi(x0*y0)+lo(x0*y0-?|x1-x0|*|y1-y0|)+lo(x1*y1) zds2,zds3:x1*y1+hi(x1*y1) wds:hi(x0*y0-?|x1-x0|*|y1-y0|) */
+
+    bary_add(zds2, zn-2*n, zds2, zn-2*n, wds, n);
+
+    /* zds0:lo(x0*y0) zds1:hi(x0*y0)+lo(x0*y0-?|x1-x0|*|y1-y0|)+lo(x1*y1) zds2,zds3:x1*y1+hi(x1*y1)+hi(x0*y0-?|x1-x0|*|y1-y0|) wds:_ */
+
+    if (carry2)
+        bary_add_one(zds2, zn-2*n);
+
+    if (carry1 + carry3 - borrow < 0)
+        bary_sub_one(zds3, zn-3*n);
+    else if (carry1 + carry3 - borrow > 0) {
+        BDIGIT c = carry1 + carry3 - borrow;
+        bary_add(zds3, zn-3*n, zds3, zn-3*n, &c, 1);
+    }
+
+    /*
+    if (SIZEOF_BDIGIT * zn <= 16) {
+        uint128_t z, x, y;
+        ssize_t i;
+        for (x = 0, i = xn-1; 0 <= i; i--) { x <<= SIZEOF_BDIGIT*CHAR_BIT; x |= xds[i]; }
+        for (y = 0, i = yn-1; 0 <= i; i--) { y <<= SIZEOF_BDIGIT*CHAR_BIT; y |= yds[i]; }
+        for (z = 0, i = zn-1; 0 <= i; i--) { z <<= SIZEOF_BDIGIT*CHAR_BIT; z |= zds[i]; }
+        assert(z == x * y);
+    }
+    */
+
+    if (odd_xy) {
+        bary_muladd_1xN(zds+yn, zn-yn, yds[yn], xds, xn);
+        bary_muladd_1xN(zds+xn, zn-xn, xds[xn], yds, yn+1);
+    }
+    else if (odd_y) {
+        bary_muladd_1xN(zds+yn, zn-yn, yds[yn], xds, xn);
+    }
+
+    if (work)
+        ALLOCV_END(work);
+}
+
+VALUE
+rb_big_mul_karatsuba(VALUE x, VALUE y)
+{
+    size_t xn = BIGNUM_LEN(x), yn = BIGNUM_LEN(y), zn = xn + yn;
+    VALUE z = bignew(zn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+    if (!((xn <= yn && yn < 2) || KARATSUBA_BALANCED(xn, yn)))
+        rb_raise(rb_eArgError, "unexpected bignum length for karatsuba");
+    bary_mul_karatsuba(BDIGITS(z), zn, BDIGITS(x), xn, BDIGITS(y), yn, NULL, 0);
+    RB_GC_GUARD(x);
+    RB_GC_GUARD(y);
+    return z;
+}
+
+static void
+bary_mul_toom3(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, BDIGIT *wds, size_t wn)
+{
+    size_t n;
+    size_t wnc;
+    VALUE work = 0;
+
+    /* "p" stands for "positive".  Actually it means "non-negative", though. */
+    size_t x0n; const BDIGIT *x0ds;
+    size_t x1n; const BDIGIT *x1ds;
+    size_t x2n; const BDIGIT *x2ds;
+    size_t y0n; const BDIGIT *y0ds;
+    size_t y1n; const BDIGIT *y1ds;
+    size_t y2n; const BDIGIT *y2ds;
+
+    size_t u1n; BDIGIT *u1ds; int u1p;
+    size_t u2n; BDIGIT *u2ds; int u2p;
+    size_t u3n; BDIGIT *u3ds; int u3p;
+
+    size_t v1n; BDIGIT *v1ds; int v1p;
+    size_t v2n; BDIGIT *v2ds; int v2p;
+    size_t v3n; BDIGIT *v3ds; int v3p;
+
+    size_t t0n; BDIGIT *t0ds; int t0p;
+    size_t t1n; BDIGIT *t1ds; int t1p;
+    size_t t2n; BDIGIT *t2ds; int t2p;
+    size_t t3n; BDIGIT *t3ds; int t3p;
+    size_t t4n; BDIGIT *t4ds; int t4p;
+
+    size_t z0n; BDIGIT *z0ds;
+    size_t z1n; BDIGIT *z1ds; int z1p;
+    size_t z2n; BDIGIT *z2ds; int z2p;
+    size_t z3n; BDIGIT *z3ds; int z3p;
+    size_t z4n; BDIGIT *z4ds;
+
+    size_t zzn; BDIGIT *zzds;
+
+    int sq = xds == yds && xn == yn;
+
+    assert(xn <= yn);  /* assume y >= x */
+    assert(xn + yn <= zn);
+
+    n = (yn + 2) / 3;
+    assert(2*n < xn);
+
+    wnc = 0;
+
+    wnc += (u1n = n+1); /* BITSPERDIG*n+2 bits */
+    wnc += (u2n = n+1); /* BITSPERDIG*n+1 bits */
+    wnc += (u3n = n+1); /* BITSPERDIG*n+3 bits */
+    wnc += (v1n = n+1); /* BITSPERDIG*n+2 bits */
+    wnc += (v2n = n+1); /* BITSPERDIG*n+1 bits */
+    wnc += (v3n = n+1); /* BITSPERDIG*n+3 bits */
+
+    wnc += (t0n = 2*n); /* BITSPERDIG*2*n bits */
+    wnc += (t1n = 2*n+2); /* BITSPERDIG*2*n+4 bits but bary_mul needs u1n+v1n */
+    wnc += (t2n = 2*n+2); /* BITSPERDIG*2*n+2 bits but bary_mul needs u2n+v2n */
+    wnc += (t3n = 2*n+2); /* BITSPERDIG*2*n+6 bits but bary_mul needs u3n+v3n */
+    wnc += (t4n = 2*n); /* BITSPERDIG*2*n bits */
+
+    wnc += (z1n = 2*n+1); /* BITSPERDIG*2*n+5 bits */
+    wnc += (z2n = 2*n+1); /* BITSPERDIG*2*n+6 bits */
+    wnc += (z3n = 2*n+1); /* BITSPERDIG*2*n+8 bits */
+
+    if (wn < wnc) {
+        wn = wnc * 3 / 2; /* Allocate working memory for whole recursion at once. */
+        wds = ALLOCV_N(BDIGIT, work, wn);
+    }
+
+    u1ds = wds; wds += u1n;
+    u2ds = wds; wds += u2n;
+    u3ds = wds; wds += u3n;
+
+    v1ds = wds; wds += v1n;
+    v2ds = wds; wds += v2n;
+    v3ds = wds; wds += v3n;
+
+    t0ds = wds; wds += t0n;
+    t1ds = wds; wds += t1n;
+    t2ds = wds; wds += t2n;
+    t3ds = wds; wds += t3n;
+    t4ds = wds; wds += t4n;
+
+    z1ds = wds; wds += z1n;
+    z2ds = wds; wds += z2n;
+    z3ds = wds; wds += z3n;
+
+    wn -= wnc;
+
+    zzds = u1ds;
+    zzn = 6*n+1;
+
+    x0n = n;
+    x1n = n;
+    x2n = xn - 2*n;
+    x0ds = xds;
+    x1ds = xds + n;
+    x2ds = xds + 2*n;
+
+    if (sq) {
+        y0n = x0n;
+        y1n = x1n;
+        y2n = x2n;
+        y0ds = x0ds;
+        y1ds = x1ds;
+        y2ds = x2ds;
+    }
+    else {
+        y0n = n;
+        y1n = n;
+        y2n = yn - 2*n;
+        y0ds = yds;
+        y1ds = yds + n;
+        y2ds = yds + 2*n;
+    }
+
+    /*
+     * ref. http://en.wikipedia.org/wiki/Toom%E2%80%93Cook_multiplication
+     *
+     * x(b) = x0 * b^0 + x1 * b^1 + x2 * b^2
+     * y(b) = y0 * b^0 + y1 * b^1 + y2 * b^2
+     *
+     * z(b) = x(b) * y(b)
+     * z(b) = z0 * b^0 + z1 * b^1 + z2 * b^2 + z3 * b^3 + z4 * b^4
+     * where:
+     *   z0 = x0 * y0
+     *   z1 = x0 * y1 + x1 * y0
+     *   z2 = x0 * y2 + x1 * y1 + x2 * y0
+     *   z3 = x1 * y2 + x2 * y1
+     *   z4 = x2 * y2
+     *
+     * Toom3 method (a.k.a. Toom-Cook method):
+     * (Step1) calculating 5 points z(b0), z(b1), z(b2), z(b3), z(b4),
+     * where:
+     *   b0 = 0, b1 = 1, b2 = -1, b3 = -2, b4 = inf,
+     *   z(0)   = x(0)   * y(0)   = x0 * y0
+     *   z(1)   = x(1)   * y(1)   = (x0 + x1 + x2) * (y0 + y1 + y2)
+     *   z(-1)  = x(-1)  * y(-1)  = (x0 - x1 + x2) * (y0 - y1 + y2)
+     *   z(-2)  = x(-2)  * y(-2)  = (x0 - 2 * (x1 - 2 * x2)) * (y0 - 2 * (y1 - 2 * y2))
+     *   z(inf) = x(inf) * y(inf) = x2 * y2
+     *
+     * (Step2) interpolating z0, z1, z2, z3 and z4.
+     *
+     * (Step3) Substituting base value into b of the polynomial z(b),
+     */
+
+    /*
+     * [Step1] calculating 5 points z(b0), z(b1), z(b2), z(b3), z(b4)
+     */
+
+    /* u1 <- x0 + x2 */
+    bary_add(u1ds, u1n, x0ds, x0n, x2ds, x2n);
+    u1p = 1;
+
+    /* x(-1) : u2 <- u1 - x1 = x0 - x1 + x2 */
+    if (bary_sub(u2ds, u2n, u1ds, u1n, x1ds, x1n)) {
+        bary_2comp(u2ds, u2n);
+        u2p = 0;
+    }
+    else {
+        u2p = 1;
+    }
+
+    /* x(1) : u1 <- u1 + x1 = x0 + x1 + x2 */
+    bary_add(u1ds, u1n, u1ds, u1n, x1ds, x1n);
+
+    /* x(-2) : u3 <- 2 * (u2 + x2) - x0 = x0 - 2 * (x1 - 2 * x2) */
+    u3p = 1;
+    if (u2p) {
+        bary_add(u3ds, u3n, u2ds, u2n, x2ds, x2n);
+    }
+    else if (bary_sub(u3ds, u3n, x2ds, x2n, u2ds, u2n)) {
+        bary_2comp(u3ds, u3n);
+        u3p = 0;
+    }
+    bary_small_lshift(u3ds, u3ds, u3n, 1);
+    if (!u3p) {
+        bary_add(u3ds, u3n, u3ds, u3n, x0ds, x0n);
+    }
+    else if (bary_sub(u3ds, u3n, u3ds, u3n, x0ds, x0n)) {
+        bary_2comp(u3ds, u3n);
+        u3p = 0;
+    }
+
+    if (sq) {
+        v1n = u1n; v1ds = u1ds; v1p = u1p;
+        v2n = u2n; v2ds = u2ds; v2p = u2p;
+        v3n = u3n; v3ds = u3ds; v3p = u3p;
+    }
+    else {
+	/* v1 <- y0 + y2 */
+        bary_add(v1ds, v1n, y0ds, y0n, y2ds, y2n);
+        v1p = 1;
+
+	/* y(-1) : v2 <- v1 - y1 = y0 - y1 + y2 */
+        v2p = 1;
+        if (bary_sub(v2ds, v2n, v1ds, v1n, y1ds, y1n)) {
+            bary_2comp(v2ds, v2n);
+            v2p = 0;
+        }
+
+	/* y(1) : v1 <- v1 + y1 = y0 + y1 + y2 */
+        bary_add(v1ds, v1n, v1ds, v1n, y1ds, y1n);
+
+	/* y(-2) : v3 <- 2 * (v2 + y2) - y0 = y0 - 2 * (y1 - 2 * y2) */
+        v3p = 1;
+        if (v2p) {
+            bary_add(v3ds, v3n, v2ds, v2n, y2ds, y2n);
+        }
+        else if (bary_sub(v3ds, v3n, y2ds, y2n, v2ds, v2n)) {
+            bary_2comp(v3ds, v3n);
+            v3p = 0;
+        }
+        bary_small_lshift(v3ds, v3ds, v3n, 1);
+        if (!v3p) {
+            bary_add(v3ds, v3n, v3ds, v3n, y0ds, y0n);
+        }
+        else if (bary_sub(v3ds, v3n, v3ds, v3n, y0ds, y0n)) {
+            bary_2comp(v3ds, v3n);
+            v3p = 0;
+        }
+    }
+
+    /* z(0) : t0 <- x0 * y0 */
+    bary_mul_toom3_start(t0ds, t0n, x0ds, x0n, y0ds, y0n, wds, wn);
+    t0p = 1;
+
+    /* z(1) : t1 <- u1 * v1 */
+    bary_mul_toom3_start(t1ds, t1n, u1ds, u1n, v1ds, v1n, wds, wn);
+    t1p = u1p == v1p;
+    assert(t1ds[t1n-1] == 0);
+    t1n--;
+
+    /* z(-1) : t2 <- u2 * v2 */
+    bary_mul_toom3_start(t2ds, t2n, u2ds, u2n, v2ds, v2n, wds, wn);
+    t2p = u2p == v2p;
+    assert(t2ds[t2n-1] == 0);
+    t2n--;
+
+    /* z(-2) : t3 <- u3 * v3 */
+    bary_mul_toom3_start(t3ds, t3n, u3ds, u3n, v3ds, v3n, wds, wn);
+    t3p = u3p == v3p;
+    assert(t3ds[t3n-1] == 0);
+    t3n--;
+
+    /* z(inf) : t4 <- x2 * y2 */
+    bary_mul_toom3_start(t4ds, t4n, x2ds, x2n, y2ds, y2n, wds, wn);
+    t4p = 1;
+
+    /*
+     * [Step2] interpolating z0, z1, z2, z3 and z4.
+     */
+
+    /* z0 <- z(0) == t0 */
+    z0n = t0n; z0ds = t0ds;
+
+    /* z4 <- z(inf) == t4 */
+    z4n = t4n; z4ds = t4ds;
+
+    /* z3 <- (z(-2) - z(1)) / 3 == (t3 - t1) / 3 */
+    if (t3p == t1p) {
+        z3p = t3p;
+        if (bary_sub(z3ds, z3n, t3ds, t3n, t1ds, t1n)) {
+            bary_2comp(z3ds, z3n);
+            z3p = !z3p;
+        }
+    }
+    else {
+        z3p = t3p;
+        bary_add(z3ds, z3n, t3ds, t3n, t1ds, t1n);
+    }
+    bigdivrem_single(z3ds, z3ds, z3n, 3);
+
+    /* z1 <- (z(1) - z(-1)) / 2 == (t1 - t2) / 2 */
+    if (t1p == t2p) {
+        z1p = t1p;
+        if (bary_sub(z1ds, z1n, t1ds, t1n, t2ds, t2n)) {
+            bary_2comp(z1ds, z1n);
+            z1p = !z1p;
+        }
+    }
+    else {
+        z1p = t1p;
+        bary_add(z1ds, z1n, t1ds, t1n, t2ds, t2n);
+    }
+    bary_small_rshift(z1ds, z1ds, z1n, 1, 0);
+
+    /* z2 <- z(-1) - z(0) == t2 - t0 */
+    if (t2p == t0p) {
+        z2p = t2p;
+        if (bary_sub(z2ds, z2n, t2ds, t2n, t0ds, t0n)) {
+            bary_2comp(z2ds, z2n);
+            z2p = !z2p;
+        }
+    }
+    else {
+        z2p = t2p;
+        bary_add(z2ds, z2n, t2ds, t2n, t0ds, t0n);
+    }
+
+    /* z3 <- (z2 - z3) / 2 + 2 * z(inf) == (z2 - z3) / 2 + 2 * t4 */
+    if (z2p == z3p) {
+        z3p = z2p;
+        if (bary_sub(z3ds, z3n, z2ds, z2n, z3ds, z3n)) {
+            bary_2comp(z3ds, z3n);
+            z3p = !z3p;
+        }
+    }
+    else {
+        z3p = z2p;
+        bary_add(z3ds, z3n, z2ds, z2n, z3ds, z3n);
+    }
+    bary_small_rshift(z3ds, z3ds, z3n, 1, 0);
+    if (z3p == t4p) {
+        bary_muladd_1xN(z3ds, z3n, 2, t4ds, t4n);
+    }
+    else {
+        if (bary_mulsub_1xN(z3ds, z3n, 2, t4ds, t4n)) {
+            bary_2comp(z3ds, z3n);
+            z3p = !z3p;
+        }
+    }
+
+    /* z2 <- z2 + z1 - z(inf) == z2 + z1 - t4 */
+    if (z2p == z1p) {
+        bary_add(z2ds, z2n, z2ds, z2n, z1ds, z1n);
+    }
+    else {
+        if (bary_sub(z2ds, z2n, z2ds, z2n, z1ds, z1n)) {
+            bary_2comp(z2ds, z2n);
+            z2p = !z2p;
+        }
+    }
+
+    if (z2p == t4p) {
+        if (bary_sub(z2ds, z2n, z2ds, z2n, t4ds, t4n)) {
+            bary_2comp(z2ds, z2n);
+            z2p = !z2p;
+        }
+    }
+    else {
+        bary_add(z2ds, z2n, z2ds, z2n, t4ds, t4n);
+    }
+
+    /* z1 <- z1 - z3 */
+    if (z1p == z3p) {
+        if (bary_sub(z1ds, z1n, z1ds, z1n, z3ds, z3n)) {
+            bary_2comp(z1ds, z1n);
+            z1p = !z1p;
+        }
+    }
+    else {
+        bary_add(z1ds, z1n, z1ds, z1n, z3ds, z3n);
+    }
+
+    /*
+     * [Step3] Substituting base value into b of the polynomial z(b),
+     */
+
+    MEMCPY(zzds, z0ds, BDIGIT, z0n);
+    BDIGITS_ZERO(zzds + z0n, 4*n - z0n);
+    MEMCPY(zzds + 4*n, z4ds, BDIGIT, z4n);
+    BDIGITS_ZERO(zzds + 4*n + z4n, zzn - (4*n + z4n));
+    if (z1p)
+        bary_add(zzds +   n, zzn -   n, zzds +   n, zzn -   n, z1ds, z1n);
+    else
+        bary_sub(zzds +   n, zzn -   n, zzds +   n, zzn -   n, z1ds, z1n);
+    if (z2p)
+        bary_add(zzds + 2*n, zzn - 2*n, zzds + 2*n, zzn - 2*n, z2ds, z2n);
+    else
+        bary_sub(zzds + 2*n, zzn - 2*n, zzds + 2*n, zzn - 2*n, z2ds, z2n);
+    if (z3p)
+        bary_add(zzds + 3*n, zzn - 3*n, zzds + 3*n, zzn - 3*n, z3ds, z3n);
+    else
+        bary_sub(zzds + 3*n, zzn - 3*n, zzds + 3*n, zzn - 3*n, z3ds, z3n);
+
+    BARY_TRUNC(zzds, zzn);
+    MEMCPY(zds, zzds, BDIGIT, zzn);
+    BDIGITS_ZERO(zds + zzn, zn - zzn);
+
+    if (work)
+        ALLOCV_END(work);
+}
+
+VALUE
+rb_big_mul_toom3(VALUE x, VALUE y)
+{
+    size_t xn = BIGNUM_LEN(x), yn = BIGNUM_LEN(y), zn = xn + yn;
+    VALUE z = bignew(zn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+    if (xn > yn || yn < 3 || !TOOM3_BALANCED(xn,yn))
+        rb_raise(rb_eArgError, "unexpected bignum length for toom3");
+    bary_mul_toom3(BDIGITS(z), zn, BDIGITS(x), xn, BDIGITS(y), yn, NULL, 0);
+    RB_GC_GUARD(x);
+    RB_GC_GUARD(y);
+    return z;
+}
+
+#ifdef USE_GMP
+static void
+bary_mul_gmp(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+    const size_t nails = (sizeof(BDIGIT)-SIZEOF_BDIGIT)*CHAR_BIT;
+    mpz_t x, y, z;
+    size_t count;
+
+    assert(xn + yn <= zn);
+
+    mpz_init(x);
+    mpz_init(y);
+    mpz_init(z);
+    mpz_import(x, xn, -1, sizeof(BDIGIT), 0, nails, xds);
+    if (xds == yds && xn == yn) {
+        mpz_mul(z, x, x);
+    }
+    else {
+        mpz_import(y, yn, -1, sizeof(BDIGIT), 0, nails, yds);
+        mpz_mul(z, x, y);
+    }
+    mpz_export(zds, &count, -1, sizeof(BDIGIT), 0, nails, z);
+    BDIGITS_ZERO(zds+count, zn-count);
+    mpz_clear(x);
+    mpz_clear(y);
+    mpz_clear(z);
+}
+
+VALUE
+rb_big_mul_gmp(VALUE x, VALUE y)
+{
+    size_t xn = BIGNUM_LEN(x), yn = BIGNUM_LEN(y), zn = xn + yn;
+    VALUE z = bignew(zn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+    bary_mul_gmp(BDIGITS(z), zn, BDIGITS(x), xn, BDIGITS(y), yn);
+    RB_GC_GUARD(x);
+    RB_GC_GUARD(y);
+    return z;
+}
+#endif
+
+static void
+bary_short_mul(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+    assert(xn + yn <= zn);
+
+    if (xn == 1 && yn == 1) {
+        bary_mul_single(zds, zn, xds[0], yds[0]);
+    }
+    else {
+        bary_mul_normal(zds, zn, xds, xn, yds, yn);
+        rb_thread_check_ints();
+    }
+}
+
+/* determine whether a bignum is sparse or not by random sampling */
+static inline int
+bary_sparse_p(const BDIGIT *ds, size_t n)
+{
+    long c = 0;
+
+    if (          ds[rb_genrand_ulong_limited(n / 2) + n / 4]) c++;
+    if (c <= 1 && ds[rb_genrand_ulong_limited(n / 2) + n / 4]) c++;
+    if (c <= 1 && ds[rb_genrand_ulong_limited(n / 2) + n / 4]) c++;
+
+    return (c <= 1) ? 1 : 0;
+}
+
+static int
+bary_mul_precheck(BDIGIT **zdsp, size_t *znp, const BDIGIT **xdsp, size_t *xnp, const BDIGIT **ydsp, size_t *ynp)
+{
+    size_t nlsz; /* number of least significant zero BDIGITs */
+
+    BDIGIT *zds = *zdsp;
+    size_t zn = *znp;
+    const BDIGIT *xds = *xdsp;
+    size_t xn = *xnp;
+    const BDIGIT *yds = *ydsp;
+    size_t yn = *ynp;
+
+    assert(xn + yn <= zn);
+
+    nlsz = 0;
+
+    while (0 < xn) {
+        if (xds[xn-1] == 0) {
+            xn--;
+        }
+        else {
+            do {
+                if (xds[0] != 0)
+                    break;
+                xds++;
+                xn--;
+                nlsz++;
+            } while (0 < xn);
+            break;
+        }
+    }
+
+    while (0 < yn) {
+        if (yds[yn-1] == 0) {
+            yn--;
+        }
+        else {
+            do {
+                if (yds[0] != 0)
+                    break;
+                yds++;
+                yn--;
+                nlsz++;
+            } while (0 < yn);
+            break;
+        }
+    }
+
+    if (nlsz) {
+        BDIGITS_ZERO(zds, nlsz);
+        zds += nlsz;
+        zn -= nlsz;
+    }
+
+    /* make sure that y is longer than x */
+    if (xn > yn) {
+        const BDIGIT *tds;
+        size_t tn;
+	tds = xds; xds = yds; yds = tds;
+	tn = xn; xn = yn; yn = tn;
+    }
+    assert(xn <= yn);
+
+    if (xn <= 1) {
+        if (xn == 0) {
+            BDIGITS_ZERO(zds, zn);
+            return 1;
+        }
+
+        if (xds[0] == 1) {
+            MEMCPY(zds, yds, BDIGIT, yn);
+            BDIGITS_ZERO(zds+yn, zn-yn);
+            return 1;
+        }
+        if (POW2_P(xds[0])) {
+            zds[yn] = bary_small_lshift(zds, yds, yn, bit_length(xds[0])-1);
+            BDIGITS_ZERO(zds+yn+1, zn-yn-1);
+            return 1;
+        }
+        if (yn == 1 && yds[0] == 1) {
+            zds[0] = xds[0];
+            BDIGITS_ZERO(zds+1, zn-1);
+            return 1;
+        }
+        bary_mul_normal(zds, zn, xds, xn, yds, yn);
+        return 1;
+    }
+
+    *zdsp = zds;
+    *znp = zn;
+    *xdsp = xds;
+    *xnp = xn;
+    *ydsp = yds;
+    *ynp = yn;
+
+    return 0;
+}
+
+static void
+bary_mul_karatsuba_branch(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, BDIGIT *wds, size_t wn)
+{
+    /* normal multiplication when x is small */
+    if (xn < KARATSUBA_MUL_DIGITS) {
+      normal:
+        if (xds == yds && xn == yn)
+            bary_sq_fast(zds, zn, xds, xn);
+        else
+            bary_short_mul(zds, zn, xds, xn, yds, yn);
+        return;
+    }
+
+    /* normal multiplication when x or y is a sparse bignum */
+    if (bary_sparse_p(xds, xn)) goto normal;
+    if (bary_sparse_p(yds, yn)) {
+        bary_short_mul(zds, zn, yds, yn, xds, xn);
+        return;
+    }
+
+    /* balance multiplication by slicing y when x is much smaller than y */
+    if (!KARATSUBA_BALANCED(xn, yn)) {
+        bary_mul_balance_with_mulfunc(zds, zn, xds, xn, yds, yn, wds, wn, bary_mul_karatsuba_start);
+        return;
+    }
+
+    /* multiplication by karatsuba method */
+    bary_mul_karatsuba(zds, zn, xds, xn, yds, yn, wds, wn);
+}
+
+static void
+bary_mul_karatsuba_start(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, BDIGIT *wds, size_t wn)
+{
+    if (bary_mul_precheck(&zds, &zn, &xds, &xn, &yds, &yn))
+        return;
+
+    bary_mul_karatsuba_branch(zds, zn, xds, xn, yds, yn, wds, wn);
+}
+
+static void
+bary_mul_toom3_branch(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, BDIGIT *wds, size_t wn)
+{
+    if (xn < TOOM3_MUL_DIGITS) {
+        bary_mul_karatsuba_branch(zds, zn, xds, xn, yds, yn, wds, wn);
+        return;
+    }
+
+    if (!TOOM3_BALANCED(xn, yn)) {
+        bary_mul_balance_with_mulfunc(zds, zn, xds, xn, yds, yn, wds, wn, bary_mul_toom3_start);
+        return;
+    }
+
+    bary_mul_toom3(zds, zn, xds, xn, yds, yn, wds, wn);
+}
+
+static void
+bary_mul_toom3_start(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, BDIGIT *wds, size_t wn)
+{
+    if (bary_mul_precheck(&zds, &zn, &xds, &xn, &yds, &yn))
+        return;
+
+    bary_mul_toom3_branch(zds, zn, xds, xn, yds, yn, wds, wn);
+}
+
+static void
+bary_mul(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+#ifdef USE_GMP
+    const size_t naive_threshold = GMP_MUL_DIGITS;
+#else
+    const size_t naive_threshold = KARATSUBA_MUL_DIGITS;
+#endif
+    if (xn <= yn) {
+        if (xn < naive_threshold) {
+            if (xds == yds && xn == yn)
+                bary_sq_fast(zds, zn, xds, xn);
+            else
+                bary_short_mul(zds, zn, xds, xn, yds, yn);
+            return;
+        }
+    }
+    else {
+        if (yn < naive_threshold) {
+            bary_short_mul(zds, zn, yds, yn, xds, xn);
+            return;
+        }
+    }
+
+#ifdef USE_GMP
+    bary_mul_gmp(zds, zn, xds, xn, yds, yn);
+#else
+    bary_mul_toom3_start(zds, zn, xds, xn, yds, yn, NULL, 0);
+#endif
+}
+
+struct big_div_struct {
+    size_t yn, zn;
+    BDIGIT *yds, *zds;
+    volatile VALUE stop;
+};
+
+static void *
+bigdivrem1(void *ptr)
+{
+    struct big_div_struct *bds = (struct big_div_struct*)ptr;
+    size_t yn = bds->yn;
+    size_t zn = bds->zn;
+    BDIGIT *yds = bds->yds, *zds = bds->zds;
+    BDIGIT_DBL_SIGNED num;
+    BDIGIT q;
+
+    do {
+	if (bds->stop) {
+	    bds->zn = zn;
+	    return 0;
+        }
+	if (zds[zn-1] == yds[yn-1]) q = BDIGMAX;
+	else q = (BDIGIT)((BIGUP(zds[zn-1]) + zds[zn-2])/yds[yn-1]);
+	if (q) {
+            num = bigdivrem_mulsub(zds+zn-(yn+1), yn+1,
+                                   q,
+                                   yds, yn);
+	    while (num) { /* "add back" required */
+		q--;
+                num = bary_add(zds+zn-(yn+1), yn,
+                               zds+zn-(yn+1), yn,
+                               yds, yn);
+                num--;
+	    }
+	}
+        zn--;
+	zds[zn] = q;
+    } while (zn > yn);
+    return 0;
+}
+
+static void
+rb_big_stop(void *ptr)
+{
+    struct big_div_struct *bds = ptr;
+    bds->stop = Qtrue;
+}
+
+static BDIGIT
+bigdivrem_single1(BDIGIT *qds, const BDIGIT *xds, size_t xn, BDIGIT x_higher_bdigit, BDIGIT y)
+{
+    assert(0 < xn);
+    assert(x_higher_bdigit < y);
+    if (POW2_P(y)) {
+        BDIGIT r;
+        r = xds[0] & (y-1);
+        bary_small_rshift(qds, xds, xn, bit_length(y)-1, x_higher_bdigit);
+        return r;
+    }
+    else {
+        size_t i;
+        BDIGIT_DBL t2;
+        t2 = x_higher_bdigit;
+        i = xn;
+        while (i--) {
+            t2 = BIGUP(t2) + xds[i];
+            qds[i] = (BDIGIT)(t2 / y);
+            t2 %= y;
+        }
+        return (BDIGIT)t2;
+    }
+}
+
+static BDIGIT
+bigdivrem_single(BDIGIT *qds, const BDIGIT *xds, size_t xn, BDIGIT y)
+{
+    return bigdivrem_single1(qds, xds, xn, 0, y);
+}
+
+static void
+bigdivrem_restoring(BDIGIT *zds, size_t zn, BDIGIT *yds, size_t yn)
+{
+    struct big_div_struct bds;
+    size_t ynzero;
+
+    assert(yn < zn);
+    assert(BDIGIT_MSB(yds[yn-1]));
+    assert(zds[zn-1] < yds[yn-1]);
+
+    for (ynzero = 0; !yds[ynzero]; ynzero++);
+
+    if (ynzero+1 == yn) {
+        BDIGIT r;
+        r = bigdivrem_single1(zds+yn, zds+ynzero, zn-yn, zds[zn-1], yds[ynzero]);
+        zds[ynzero] = r;
+        return;
+    }
+
+    bds.yn = yn - ynzero;
+    bds.zds = zds + ynzero;
+    bds.yds = yds + ynzero;
+    bds.stop = Qfalse;
+    bds.zn = zn - ynzero;
+    if (bds.zn > 10000 || bds.yn > 10000) {
+      retry:
+	bds.stop = Qfalse;
+	rb_thread_call_without_gvl(bigdivrem1, &bds, rb_big_stop, &bds);
+
+	if (bds.stop == Qtrue) {
+	    /* execute trap handler, but exception was not raised. */
+	    goto retry;
+	}
+    }
+    else {
+	bigdivrem1(&bds);
+    }
+}
+
+static void
+bary_divmod_normal(BDIGIT *qds, size_t qn, BDIGIT *rds, size_t rn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+    int shift;
+    BDIGIT *zds, *yyds;
+    size_t zn;
+    VALUE tmpyz = 0;
+
+    assert(yn < xn || (xn == yn && yds[yn - 1] <= xds[xn - 1]));
+    assert(qds ? (xn - yn + 1) <= qn : 1);
+    assert(rds ? yn <= rn : 1);
+
+    zn = xn + BIGDIVREM_EXTRA_WORDS;
+
+    shift = nlz(yds[yn-1]);
+    if (shift) {
+        int alloc_y = !rds;
+        int alloc_z = !qds || qn < zn;
+        if (alloc_y && alloc_z) {
+            yyds = ALLOCV_N(BDIGIT, tmpyz, yn+zn);
+            zds = yyds + yn;
+        }
+        else {
+            yyds = alloc_y ? ALLOCV_N(BDIGIT, tmpyz, yn) : rds;
+            zds = alloc_z ? ALLOCV_N(BDIGIT, tmpyz, zn) : qds;
+        }
+        zds[xn] = bary_small_lshift(zds, xds, xn, shift);
+        bary_small_lshift(yyds, yds, yn, shift);
+    }
+    else {
+        if (qds && zn <= qn)
+            zds = qds;
+        else
+            zds = ALLOCV_N(BDIGIT, tmpyz, zn);
+        MEMCPY(zds, xds, BDIGIT, xn);
+        zds[xn] = 0;
+        /* bigdivrem_restoring will not modify y.
+         * So use yds directly.  */
+        yyds = (BDIGIT *)yds;
+    }
+
+    bigdivrem_restoring(zds, zn, yyds, yn);
+
+    if (rds) {
+        if (shift)
+            bary_small_rshift(rds, zds, yn, shift, 0);
+        else
+            MEMCPY(rds, zds, BDIGIT, yn);
+        BDIGITS_ZERO(rds+yn, rn-yn);
+    }
+
+    if (qds) {
+        size_t j = zn - yn;
+        MEMMOVE(qds, zds+yn, BDIGIT, j);
+        BDIGITS_ZERO(qds+j, qn-j);
+    }
+
+    if (tmpyz)
+        ALLOCV_END(tmpyz);
+}
+
+VALUE
+rb_big_divrem_normal(VALUE x, VALUE y)
+{
+    size_t xn = BIGNUM_LEN(x), yn = BIGNUM_LEN(y), qn, rn;
+    BDIGIT *xds = BDIGITS(x), *yds = BDIGITS(y), *qds, *rds;
+    VALUE q, r;
+
+    BARY_TRUNC(yds, yn);
+    if (yn == 0)
+        rb_num_zerodiv();
+    BARY_TRUNC(xds, xn);
+
+    if (xn < yn || (xn == yn && xds[xn - 1] < yds[yn - 1]))
+        return rb_assoc_new(LONG2FIX(0), x);
+
+    qn = xn + BIGDIVREM_EXTRA_WORDS;
+    q = bignew(qn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+    qds = BDIGITS(q);
+
+    rn = yn;
+    r = bignew(rn, BIGNUM_SIGN(x));
+    rds = BDIGITS(r);
+
+    bary_divmod_normal(qds, qn, rds, rn, xds, xn, yds, yn);
+
+    bigtrunc(q);
+    bigtrunc(r);
+
+    RB_GC_GUARD(x);
+    RB_GC_GUARD(y);
+
+    return rb_assoc_new(q, r);
+}
+
+#ifdef USE_GMP
+static void
+bary_divmod_gmp(BDIGIT *qds, size_t qn, BDIGIT *rds, size_t rn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+    const size_t nails = (sizeof(BDIGIT)-SIZEOF_BDIGIT)*CHAR_BIT;
+    mpz_t x, y, q, r;
+    size_t count;
+
+    assert(yn < xn || (xn == yn && yds[yn - 1] <= xds[xn - 1]));
+    assert(qds ? (xn - yn + 1) <= qn : 1);
+    assert(rds ? yn <= rn : 1);
+    assert(qds || rds);
+
+    mpz_init(x);
+    mpz_init(y);
+    if (qds) mpz_init(q);
+    if (rds) mpz_init(r);
+
+    mpz_import(x, xn, -1, sizeof(BDIGIT), 0, nails, xds);
+    mpz_import(y, yn, -1, sizeof(BDIGIT), 0, nails, yds);
+
+    if (!rds) {
+        mpz_fdiv_q(q, x, y);
+    }
+    else if (!qds) {
+        mpz_fdiv_r(r, x, y);
+    }
+    else {
+        mpz_fdiv_qr(q, r, x, y);
+    }
+
+    mpz_clear(x);
+    mpz_clear(y);
+
+    if (qds) {
+        mpz_export(qds, &count, -1, sizeof(BDIGIT), 0, nails, q);
+        BDIGITS_ZERO(qds+count, qn-count);
+        mpz_clear(q);
+    }
+
+    if (rds) {
+        mpz_export(rds, &count, -1, sizeof(BDIGIT), 0, nails, r);
+        BDIGITS_ZERO(rds+count, rn-count);
+        mpz_clear(r);
+    }
+}
+
+VALUE
+rb_big_divrem_gmp(VALUE x, VALUE y)
+{
+    size_t xn = BIGNUM_LEN(x), yn = BIGNUM_LEN(y), qn, rn;
+    BDIGIT *xds = BDIGITS(x), *yds = BDIGITS(y), *qds, *rds;
+    VALUE q, r;
+
+    BARY_TRUNC(yds, yn);
+    if (yn == 0)
+        rb_num_zerodiv();
+    BARY_TRUNC(xds, xn);
+
+    if (xn < yn || (xn == yn && xds[xn - 1] < yds[yn - 1]))
+        return rb_assoc_new(LONG2FIX(0), x);
+
+    qn = xn - yn + 1;
+    q = bignew(qn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+    qds = BDIGITS(q);
+
+    rn = yn;
+    r = bignew(rn, BIGNUM_SIGN(x));
+    rds = BDIGITS(r);
+
+    bary_divmod_gmp(qds, qn, rds, rn, xds, xn, yds, yn);
+
+    bigtrunc(q);
+    bigtrunc(r);
+
+    RB_GC_GUARD(x);
+    RB_GC_GUARD(y);
+
+    return rb_assoc_new(q, r);
+}
+#endif
+
+static void
+bary_divmod_branch(BDIGIT *qds, size_t qn, BDIGIT *rds, size_t rn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+#ifdef USE_GMP
+    if (GMP_DIV_DIGITS < xn) {
+        bary_divmod_gmp(qds, qn, rds, rn, xds, xn, yds, yn);
+        return;
+    }
+#endif
+    bary_divmod_normal(qds, qn, rds, rn, xds, xn, yds, yn);
+}
+
+static void
+bary_divmod(BDIGIT *qds, size_t qn, BDIGIT *rds, size_t rn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+    assert(xn <= qn);
+    assert(yn <= rn);
+
+    BARY_TRUNC(yds, yn);
+    if (yn == 0)
+        rb_num_zerodiv();
+
+    BARY_TRUNC(xds, xn);
+    if (xn == 0) {
+        BDIGITS_ZERO(qds, qn);
+        BDIGITS_ZERO(rds, rn);
+        return;
+    }
+
+    if (xn < yn || (xn == yn && xds[xn - 1] < yds[yn - 1])) {
+        MEMCPY(rds, xds, BDIGIT, xn);
+        BDIGITS_ZERO(rds+xn, rn-xn);
+        BDIGITS_ZERO(qds, qn);
+    }
+    else if (yn == 1) {
+        MEMCPY(qds, xds, BDIGIT, xn);
+        BDIGITS_ZERO(qds+xn, qn-xn);
+        rds[0] = bigdivrem_single(qds, xds, xn, yds[0]);
+        BDIGITS_ZERO(rds+1, rn-1);
+    }
+    else if (xn == 2 && yn == 2) {
+        BDIGIT_DBL x = bary2bdigitdbl(xds, 2);
+        BDIGIT_DBL y = bary2bdigitdbl(yds, 2);
+        BDIGIT_DBL q = x / y;
+        BDIGIT_DBL r = x % y;
+        qds[0] = BIGLO(q);
+        qds[1] = BIGLO(BIGDN(q));
+        BDIGITS_ZERO(qds+2, qn-2);
+        rds[0] = BIGLO(r);
+        rds[1] = BIGLO(BIGDN(r));
+        BDIGITS_ZERO(rds+2, rn-2);
+    }
+    else {
+        bary_divmod_branch(qds, qn, rds, rn, xds, xn, yds, yn);
+    }
+}
+
 
 #define BIGNUM_DEBUG 0
 #if BIGNUM_DEBUG
@@ -57,11 +2873,11 @@ static void
 dump_bignum(VALUE x)
 {
     long i;
-    printf("%c0x0", RBIGNUM_SIGN(x) ? '+' : '-');
-    for (i = RBIGNUM_LEN(x); i--; ) {
-	printf("_%08"PRIxBDIGIT, BDIGITS(x)[i]);
+    printf("%c0x0", BIGNUM_SIGN(x) ? '+' : '-');
+    for (i = BIGNUM_LEN(x); i--; ) {
+        printf("_%0*"PRIxBDIGIT, SIZEOF_BDIGIT*2, BDIGITS(x)[i]);
     }
-    printf(", len=%lu", RBIGNUM_LEN(x));
+    printf(", len=%"PRIuSIZE, BIGNUM_LEN(x));
     puts("");
 }
 
@@ -78,13 +2894,7 @@ rb_big_dump(VALUE x)
 static int
 bigzero_p(VALUE x)
 {
-    long i;
-    BDIGIT *ds = BDIGITS(x);
-
-    for (i = RBIGNUM_LEN(x) - 1; 0 <= i; i--) {
-	if (ds[i]) return 0;
-    }
-    return 1;
+    return bary_zero_p(BDIGITS(x), BIGNUM_LEN(x));
 }
 
 int
@@ -105,9 +2915,9 @@ rb_cmpint(VALUE val, VALUE a, VALUE b)
         if (l < 0) return -1;
         return 0;
     }
-    if (RB_TYPE_P(val, T_BIGNUM)) {
+    if (RB_BIGNUM_TYPE_P(val)) {
 	if (BIGZEROP(val)) return 0;
-	if (RBIGNUM_SIGN(val)) return 1;
+	if (BIGNUM_SIGN(val)) return 1;
 	return -1;
     }
     if (RTEST(rb_funcall(val, '>', 1, INT2FIX(0)))) return 1;
@@ -115,38 +2925,39 @@ rb_cmpint(VALUE val, VALUE a, VALUE b)
     return 0;
 }
 
-#define RBIGNUM_SET_LEN(b,l) \
-    ((RBASIC(b)->flags & RBIGNUM_EMBED_FLAG) ? \
+#define BIGNUM_SET_LEN(b,l) \
+    ((RBASIC(b)->flags & BIGNUM_EMBED_FLAG) ? \
      (void)(RBASIC(b)->flags = \
-	    (RBASIC(b)->flags & ~RBIGNUM_EMBED_LEN_MASK) | \
-	    ((l) << RBIGNUM_EMBED_LEN_SHIFT)) : \
+	    (RBASIC(b)->flags & ~BIGNUM_EMBED_LEN_MASK) | \
+	    ((l) << BIGNUM_EMBED_LEN_SHIFT)) : \
      (void)(RBIGNUM(b)->as.heap.len = (l)))
 
 static void
-rb_big_realloc(VALUE big, long len)
+rb_big_realloc(VALUE big, size_t len)
 {
     BDIGIT *ds;
-    if (RBASIC(big)->flags & RBIGNUM_EMBED_FLAG) {
-	if (RBIGNUM_EMBED_LEN_MAX < len) {
+    if (RBASIC(big)->flags & BIGNUM_EMBED_FLAG) {
+	if (BIGNUM_EMBED_LEN_MAX < len) {
 	    ds = ALLOC_N(BDIGIT, len);
-	    MEMCPY(ds, RBIGNUM(big)->as.ary, BDIGIT, RBIGNUM_EMBED_LEN_MAX);
-	    RBIGNUM(big)->as.heap.len = RBIGNUM_LEN(big);
+	    MEMCPY(ds, RBIGNUM(big)->as.ary, BDIGIT, BIGNUM_EMBED_LEN_MAX);
+	    RBIGNUM(big)->as.heap.len = BIGNUM_LEN(big);
 	    RBIGNUM(big)->as.heap.digits = ds;
-	    RBASIC(big)->flags &= ~RBIGNUM_EMBED_FLAG;
+	    RBASIC(big)->flags &= ~BIGNUM_EMBED_FLAG;
 	}
     }
     else {
-	if (len <= RBIGNUM_EMBED_LEN_MAX) {
+	if (len <= BIGNUM_EMBED_LEN_MAX) {
 	    ds = RBIGNUM(big)->as.heap.digits;
-	    RBASIC(big)->flags |= RBIGNUM_EMBED_FLAG;
-	    RBIGNUM_SET_LEN(big, len);
+	    RBASIC(big)->flags |= BIGNUM_EMBED_FLAG;
+	    BIGNUM_SET_LEN(big, len);
+            (void)VALGRIND_MAKE_MEM_UNDEFINED((void*)RBIGNUM(big)->as.ary, sizeof(RBIGNUM(big)->as.ary));
 	    if (ds) {
 		MEMCPY(RBIGNUM(big)->as.ary, ds, BDIGIT, len);
 		xfree(ds);
 	    }
 	}
 	else {
-	    if (RBIGNUM_LEN(big) == 0) {
+	    if (BIGNUM_LEN(big) == 0) {
 		RBIGNUM(big)->as.heap.digits = ALLOC_N(BDIGIT, len);
 	    }
 	    else {
@@ -157,20 +2968,21 @@ rb_big_realloc(VALUE big, long len)
 }
 
 void
-rb_big_resize(VALUE big, long len)
+rb_big_resize(VALUE big, size_t len)
 {
     rb_big_realloc(big, len);
-    RBIGNUM_SET_LEN(big, len);
+    BIGNUM_SET_LEN(big, len);
 }
 
 static VALUE
-bignew_1(VALUE klass, long len, int sign)
+bignew_1(VALUE klass, size_t len, int sign)
 {
-    NEWOBJ_OF(big, struct RBignum, klass, T_BIGNUM);
-    RBIGNUM_SET_SIGN(big, sign?1:0);
-    if (len <= RBIGNUM_EMBED_LEN_MAX) {
-	RBASIC(big)->flags |= RBIGNUM_EMBED_FLAG;
-	RBIGNUM_SET_LEN(big, len);
+    NEWOBJ_OF(big, struct RBignum, klass, T_BIGNUM | (RGENGC_WB_PROTECTED_BIGNUM ? FL_WB_PROTECTED : 0));
+    BIGNUM_SET_SIGN(big, sign?1:0);
+    if (len <= BIGNUM_EMBED_LEN_MAX) {
+	RBASIC(big)->flags |= BIGNUM_EMBED_FLAG;
+	BIGNUM_SET_LEN(big, len);
+        (void)VALGRIND_MAKE_MEM_UNDEFINED((void*)RBIGNUM(big)->as.ary, sizeof(RBIGNUM(big)->as.ary));
     }
     else {
 	RBIGNUM(big)->as.heap.digits = ALLOC_N(BDIGIT, len);
@@ -180,10 +2992,8 @@ bignew_1(VALUE klass, long len, int sign)
     return (VALUE)big;
 }
 
-#define bignew(len,sign) bignew_1(rb_cBignum,(len),(sign))
-
 VALUE
-rb_big_new(long len, int sign)
+rb_big_new(size_t len, int sign)
 {
     return bignew(len, sign != 0);
 }
@@ -191,33 +3001,29 @@ rb_big_new(long len, int sign)
 VALUE
 rb_big_clone(VALUE x)
 {
-    long len = RBIGNUM_LEN(x);
-    VALUE z = bignew_1(CLASS_OF(x), len, RBIGNUM_SIGN(x));
+    size_t len = BIGNUM_LEN(x);
+    VALUE z = bignew_1(CLASS_OF(x), len, BIGNUM_SIGN(x));
 
     MEMCPY(BDIGITS(z), BDIGITS(x), BDIGIT, len);
     return z;
 }
 
+static void
+big_extend_carry(VALUE x)
+{
+    rb_big_resize(x, BIGNUM_LEN(x)+1);
+    BDIGITS(x)[BIGNUM_LEN(x)-1] = 1;
+}
+
 /* modify a bignum by 2's complement */
 static void
 get2comp(VALUE x)
 {
-    long i = RBIGNUM_LEN(x);
+    long i = BIGNUM_LEN(x);
     BDIGIT *ds = BDIGITS(x);
-    BDIGIT_DBL num;
 
-    if (!i) return;
-    while (i--) ds[i] = ~ds[i];
-    i = 0; num = 1;
-    do {
-	num += ds[i];
-	ds[i++] = BIGLO(num);
-	num = BIGDN(num);
-    } while (i < RBIGNUM_LEN(x));
-    if (num != 0) {
-	rb_big_resize(x, RBIGNUM_LEN(x)+1);
-	ds = BDIGITS(x);
-	ds[RBIGNUM_LEN(x)-1] = 1;
+    if (bary_2comp(ds, i)) {
+        big_extend_carry(x);
     }
 }
 
@@ -227,15 +3033,45 @@ rb_big_2comp(VALUE x)			/* get 2's complement */
     get2comp(x);
 }
 
+static BDIGIT
+abs2twocomp(VALUE *xp, long *n_ret)
+{
+    VALUE x = *xp;
+    long n = BIGNUM_LEN(x);
+    BDIGIT *ds = BDIGITS(x);
+    BDIGIT hibits = 0;
+
+    BARY_TRUNC(ds, n);
+
+    if (n != 0 && BIGNUM_NEGATIVE_P(x)) {
+        VALUE z = bignew_1(CLASS_OF(x), n, 0);
+        MEMCPY(BDIGITS(z), ds, BDIGIT, n);
+        bary_2comp(BDIGITS(z), n);
+        hibits = BDIGMAX;
+	*xp = z;
+    }
+    *n_ret = n;
+    return hibits;
+}
+
+static void
+twocomp2abs_bang(VALUE x, int hibits)
+{
+    BIGNUM_SET_SIGN(x, !hibits);
+    if (hibits) {
+        get2comp(x);
+    }
+}
+
 static inline VALUE
 bigtrunc(VALUE x)
 {
-    long len = RBIGNUM_LEN(x);
+    size_t len = BIGNUM_LEN(x);
     BDIGIT *ds = BDIGITS(x);
 
     if (len == 0) return x;
     while (--len && !ds[len]);
-    if (RBIGNUM_LEN(x) > len+1) {
+    if (BIGNUM_LEN(x) > len+1) {
 	rb_big_resize(x, len+1);
     }
     return x;
@@ -244,36 +3080,52 @@ bigtrunc(VALUE x)
 static inline VALUE
 bigfixize(VALUE x)
 {
-    long len = RBIGNUM_LEN(x);
+    size_t n = BIGNUM_LEN(x);
     BDIGIT *ds = BDIGITS(x);
-
-    if (len == 0) return INT2FIX(0);
-    if ((size_t)(len*SIZEOF_BDIGITS) <= sizeof(long)) {
-	long num = 0;
-#if 2*SIZEOF_BDIGITS > SIZEOF_LONG
-	num = (long)ds[0];
+#if SIZEOF_BDIGIT < SIZEOF_LONG
+    unsigned long u;
 #else
-	while (len--) {
-	    num = (long)(BIGUP(num) + ds[len]);
-	}
+    BDIGIT u;
 #endif
-	if (num >= 0) {
-	    if (RBIGNUM_SIGN(x)) {
-		if (POSFIXABLE(num)) return LONG2FIX(num);
-	    }
-	    else {
-		if (NEGFIXABLE(-num)) return LONG2FIX(-num);
-	    }
-	}
+
+    BARY_TRUNC(ds, n);
+
+    if (n == 0) return INT2FIX(0);
+
+#if SIZEOF_BDIGIT < SIZEOF_LONG
+    if (sizeof(long)/SIZEOF_BDIGIT < n)
+        goto return_big;
+    else {
+        int i = (int)n;
+        u = 0;
+        while (i--) {
+            u = (unsigned long)(BIGUP(u) + ds[i]);
+        }
+    }
+#else /* SIZEOF_BDIGIT >= SIZEOF_LONG */
+    if (1 < n)
+        goto return_big;
+    else
+        u = ds[0];
+#endif
+
+    if (BIGNUM_POSITIVE_P(x)) {
+        if (POSFIXABLE(u)) return LONG2FIX((long)u);
     }
+    else {
+        if (u <= -FIXNUM_MIN) return LONG2FIX(-(long)u);
+    }
+
+  return_big:
+    rb_big_resize(x, n);
     return x;
 }
 
 static VALUE
 bignorm(VALUE x)
 {
-    if (RB_TYPE_P(x, T_BIGNUM)) {
-	x = bigfixize(bigtrunc(x));
+    if (RB_BIGNUM_TYPE_P(x)) {
+	x = bigfixize(x);
     }
     return x;
 }
@@ -287,21 +3139,22 @@ rb_big_norm(VALUE x)
 VALUE
 rb_uint2big(VALUE n)
 {
-    BDIGIT_DBL num = n;
-    long i = 0;
-    BDIGIT *digits;
-    VALUE big;
+    long i;
+    VALUE big = bignew(bdigit_roomof(SIZEOF_VALUE), 1);
+    BDIGIT *digits = BDIGITS(big);
 
-    big = bignew(DIGSPERLONG, 1);
-    digits = BDIGITS(big);
-    while (i < DIGSPERLONG) {
-	digits[i++] = BIGLO(num);
-	num = BIGDN(num);
+#if SIZEOF_BDIGIT >= SIZEOF_VALUE
+    digits[0] = n;
+#else
+    for (i = 0; i < bdigit_roomof(SIZEOF_VALUE); i++) {
+	digits[i] = BIGLO(n);
+	n = BIGDN(n);
     }
+#endif
 
-    i = DIGSPERLONG;
+    i = bdigit_roomof(SIZEOF_VALUE);
     while (--i && !digits[i]) ;
-    RBIGNUM_SET_LEN(big, i+1);
+    BIGNUM_SET_LEN(big, i+1);
     return big;
 }
 
@@ -321,7 +3174,7 @@ rb_int2big(SIGNED_VALUE n)
     }
     big = rb_uint2big(u);
     if (neg) {
-	RBIGNUM_SET_SIGN(big, 0);
+	BIGNUM_SET_SIGN(big, 0);
     }
     return big;
 }
@@ -340,265 +3193,788 @@ rb_int2inum(SIGNED_VALUE n)
     return rb_int2big(n);
 }
 
-#if SIZEOF_LONG % SIZEOF_BDIGITS != 0
-# error unexpected SIZEOF_LONG : SIZEOF_BDIGITS ratio
-#endif
+void
+rb_big_pack(VALUE val, unsigned long *buf, long num_longs)
+{
+    rb_integer_pack(val, buf, num_longs, sizeof(long), 0,
+            INTEGER_PACK_LSWORD_FIRST|INTEGER_PACK_NATIVE_BYTE_ORDER|
+            INTEGER_PACK_2COMP);
+}
+
+VALUE
+rb_big_unpack(unsigned long *buf, long num_longs)
+{
+    return rb_integer_unpack(buf, num_longs, sizeof(long), 0,
+            INTEGER_PACK_LSWORD_FIRST|INTEGER_PACK_NATIVE_BYTE_ORDER|
+            INTEGER_PACK_2COMP);
+}
 
 /*
- * buf is an array of long integers.
- * buf is ordered from least significant word to most significant word.
- * buf[0] is the least significant word and
- * buf[num_longs-1] is the most significant word.
- * This means words in buf is little endian.
- * However each word in buf is native endian.
- * (buf[i]&1) is the least significant bit and
- * (buf[i]&(1<<(SIZEOF_LONG*CHAR_BIT-1))) is the most significant bit
- * for each 0 <= i < num_longs.
- * So buf is little endian at whole on a little endian machine.
- * But buf is mixed endian on a big endian machine.
- *
- * The buf represents negative integers as two's complement.
- * So, the most significant bit of the most significant word,
- * (buf[num_longs-1]>>(SIZEOF_LONG*CHAR_BIT-1)),
- * is the sign bit: 1 means negative and 0 means zero or positive.
- *
- * If given size of buf (num_longs) is not enough to represent val,
- * higier words (including a sign bit) are ignored.
+ * Calculate the number of bytes to be required to represent
+ * the absolute value of the integer given as _val_.
+ *
+ * [val] an integer.
+ * [nlz_bits_ret] number of leading zero bits in the most significant byte is returned if not NULL.
+ *
+ * This function returns ((val_numbits * CHAR_BIT + CHAR_BIT - 1) / CHAR_BIT)
+ * where val_numbits is the number of bits of abs(val).
+ * This function should not overflow.
+ *
+ * If nlz_bits_ret is not NULL,
+ * (return_value * CHAR_BIT - val_numbits) is stored in *nlz_bits_ret.
+ * In this case, 0 <= *nlz_bits_ret < CHAR_BIT.
+ *
  */
-void
-rb_big_pack(VALUE val, unsigned long *buf, long num_longs)
+size_t
+rb_absint_size(VALUE val, int *nlz_bits_ret)
 {
+    BDIGIT *dp;
+    BDIGIT *de;
+    BDIGIT fixbuf[bdigit_roomof(sizeof(long))];
+
+    int num_leading_zeros;
+
     val = rb_to_int(val);
-    if (num_longs == 0)
-        return;
+
     if (FIXNUM_P(val)) {
-        long i;
-        long tmp = FIX2LONG(val);
-        buf[0] = (unsigned long)tmp;
-        tmp = tmp < 0 ? ~0L : 0;
-        for (i = 1; i < num_longs; i++)
-            buf[i] = (unsigned long)tmp;
-        return;
-    }
-    else {
-        long len = RBIGNUM_LEN(val);
-        BDIGIT *ds = BDIGITS(val), *dend = ds + len;
-        long i, j;
-        for (i = 0; i < num_longs && ds < dend; i++) {
-            unsigned long l = 0;
-            for (j = 0; j < DIGSPERLONG && ds < dend; j++, ds++) {
-                l |= ((unsigned long)*ds << (j * BITSPERDIG));
-            }
-            buf[i] = l;
+        long v = FIX2LONG(val);
+        if (v < 0) {
+            v = -v;
         }
-        for (; i < num_longs; i++)
-            buf[i] = 0;
-        if (RBIGNUM_NEGATIVE_P(val)) {
-            for (i = 0; i < num_longs; i++) {
-                buf[i] = ~buf[i];
-            }
-            for (i = 0; i < num_longs; i++) {
-                buf[i]++;
-                if (buf[i] != 0)
-                    return;
+#if SIZEOF_BDIGIT >= SIZEOF_LONG
+        fixbuf[0] = v;
+#else
+        {
+            int i;
+            for (i = 0; i < numberof(fixbuf); i++) {
+                fixbuf[i] = BIGLO(v);
+                v = BIGDN(v);
             }
         }
+#endif
+        dp = fixbuf;
+        de = fixbuf + numberof(fixbuf);
+    }
+    else {
+        dp = BDIGITS(val);
+        de = dp + BIGNUM_LEN(val);
+    }
+    while (dp < de && de[-1] == 0)
+        de--;
+    if (dp == de) {
+        if (nlz_bits_ret)
+            *nlz_bits_ret = 0;
+        return 0;
     }
+    num_leading_zeros = nlz(de[-1]);
+    if (nlz_bits_ret)
+        *nlz_bits_ret = num_leading_zeros % CHAR_BIT;
+    return (de - dp) * SIZEOF_BDIGIT - num_leading_zeros / CHAR_BIT;
 }
 
-/* See rb_big_pack comment for endianness and sign of buf. */
-VALUE
-rb_big_unpack(unsigned long *buf, long num_longs)
+static size_t
+absint_numwords_small(size_t numbytes, int nlz_bits_in_msbyte, size_t word_numbits, size_t *nlz_bits_ret)
 {
-    while (2 <= num_longs) {
-        if (buf[num_longs-1] == 0 && (long)buf[num_longs-2] >= 0)
-            num_longs--;
-        else if (buf[num_longs-1] == ~0UL && (long)buf[num_longs-2] < 0)
-            num_longs--;
-        else
-            break;
+    size_t val_numbits = numbytes * CHAR_BIT - nlz_bits_in_msbyte;
+    size_t div = val_numbits / word_numbits;
+    size_t mod = val_numbits % word_numbits;
+    size_t numwords;
+    size_t nlz_bits;
+    numwords = mod == 0 ? div : div + 1;
+    nlz_bits = mod == 0 ? 0 : word_numbits - mod;
+    *nlz_bits_ret = nlz_bits;
+    return numwords;
+}
+
+static size_t
+absint_numwords_generic(size_t numbytes, int nlz_bits_in_msbyte, size_t word_numbits, size_t *nlz_bits_ret)
+{
+    static const BDIGIT char_bit[1] = { CHAR_BIT };
+    BDIGIT numbytes_bary[bdigit_roomof(sizeof(numbytes))];
+    BDIGIT val_numbits_bary[bdigit_roomof(sizeof(numbytes) + 1)];
+    BDIGIT nlz_bits_in_msbyte_bary[1];
+    BDIGIT word_numbits_bary[bdigit_roomof(sizeof(word_numbits))];
+    BDIGIT div_bary[numberof(val_numbits_bary) + BIGDIVREM_EXTRA_WORDS];
+    BDIGIT mod_bary[numberof(word_numbits_bary)];
+    BDIGIT one[1] = { 1 };
+    size_t nlz_bits;
+    size_t mod;
+    int sign;
+    size_t numwords;
+
+    nlz_bits_in_msbyte_bary[0] = nlz_bits_in_msbyte;
+
+    /*
+     * val_numbits = numbytes * CHAR_BIT - nlz_bits_in_msbyte
+     * div, mod = val_numbits.divmod(word_numbits)
+     * numwords = mod == 0 ? div : div + 1
+     * nlz_bits = mod == 0 ? 0 : word_numbits - mod
+     */
+
+    bary_unpack(BARY_ARGS(numbytes_bary), &numbytes, 1, sizeof(numbytes), 0,
+        INTEGER_PACK_NATIVE_BYTE_ORDER);
+    BARY_SHORT_MUL(val_numbits_bary, numbytes_bary, char_bit);
+    if (nlz_bits_in_msbyte)
+        BARY_SUB(val_numbits_bary, val_numbits_bary, nlz_bits_in_msbyte_bary);
+    bary_unpack(BARY_ARGS(word_numbits_bary), &word_numbits, 1, sizeof(word_numbits), 0,
+        INTEGER_PACK_NATIVE_BYTE_ORDER);
+    BARY_DIVMOD(div_bary, mod_bary, val_numbits_bary, word_numbits_bary);
+    if (BARY_ZERO_P(mod_bary)) {
+        nlz_bits = 0;
     }
-    if (num_longs == 0)
-        return INT2FIX(0);
-    else if (num_longs == 1)
-        return LONG2NUM((long)buf[0]);
-    else {
-        VALUE big;
-        BDIGIT *ds;
-        long len = num_longs * DIGSPERLONG;
-        long i;
-        big = bignew(len, 1);
-        ds = BDIGITS(big);
-        for (i = 0; i < num_longs; i++) {
-            unsigned long d = buf[i];
-#if SIZEOF_LONG == SIZEOF_BDIGITS
-            *ds++ = d;
-#else
-            int j;
-            for (j = 0; j < DIGSPERLONG; j++) {
-                *ds++ = BIGLO(d);
-                d = BIGDN(d);
-            }
+    else {
+        BARY_ADD(div_bary, div_bary, one);
+        bary_pack(+1, BARY_ARGS(mod_bary), &mod, 1, sizeof(mod), 0,
+            INTEGER_PACK_NATIVE_BYTE_ORDER);
+        nlz_bits = word_numbits - mod;
+    }
+    sign = bary_pack(+1, BARY_ARGS(div_bary), &numwords, 1, sizeof(numwords), 0,
+        INTEGER_PACK_NATIVE_BYTE_ORDER);
+
+    if (sign == 2) {
+#if defined __GNUC__ && (__GNUC__ == 4 && __GNUC_MINOR__ == 4)
+	*nlz_bits_ret = 0;
 #endif
-        }
-        if ((long)buf[num_longs-1] < 0) {
-            get2comp(big);
-            RBIGNUM_SET_SIGN(big, 0);
-        }
-        return bignorm(big);
+        return (size_t)-1;
     }
+    *nlz_bits_ret = nlz_bits;
+    return numwords;
 }
 
-#define QUAD_SIZE 8
+/*
+ * Calculate the number of words to be required to represent
+ * the absolute value of the integer given as _val_.
+ *
+ * [val] an integer.
+ * [word_numbits] number of bits in a word.
+ * [nlz_bits_ret] number of leading zero bits in the most significant word is returned if not NULL.
+ *
+ * This function returns ((val_numbits * CHAR_BIT + word_numbits - 1) / word_numbits)
+ * where val_numbits is the number of bits of abs(val).
+ *
+ * This function can overflow.
+ * When overflow occur, (size_t)-1 is returned.
+ *
+ * If nlz_bits_ret is not NULL and overflow is not occur,
+ * (return_value * word_numbits - val_numbits) is stored in *nlz_bits_ret.
+ * In this case, 0 <= *nlz_bits_ret < word_numbits.
+ *
+ */
+size_t
+rb_absint_numwords(VALUE val, size_t word_numbits, size_t *nlz_bits_ret)
+{
+    size_t numbytes;
+    int nlz_bits_in_msbyte;
+    size_t numwords;
+    size_t nlz_bits;
+
+    if (word_numbits == 0)
+        return (size_t)-1;
+
+    numbytes = rb_absint_size(val, &nlz_bits_in_msbyte);
+
+    if (numbytes <= SIZE_MAX / CHAR_BIT) {
+        numwords = absint_numwords_small(numbytes, nlz_bits_in_msbyte, word_numbits, &nlz_bits);
+#ifdef DEBUG_INTEGER_PACK
+        {
+            size_t numwords0, nlz_bits0;
+            numwords0 = absint_numwords_generic(numbytes, nlz_bits_in_msbyte, word_numbits, &nlz_bits0);
+            assert(numwords0 == numwords);
+            assert(nlz_bits0 == nlz_bits);
+        }
+#endif
+    }
+    else {
+        numwords = absint_numwords_generic(numbytes, nlz_bits_in_msbyte, word_numbits, &nlz_bits);
+    }
+    if (numwords == (size_t)-1)
+        return numwords;
+
+    if (nlz_bits_ret)
+        *nlz_bits_ret = nlz_bits;
 
-#if SIZEOF_LONG_LONG == QUAD_SIZE && SIZEOF_BDIGITS*2 == SIZEOF_LONG_LONG
+    return numwords;
+}
 
-void
-rb_quad_pack(char *buf, VALUE val)
+/* Test abs(val) consists only a bit or not.
+ *
+ * Returns 1 if abs(val) == 1 << n for some n >= 0.
+ * Returns 0 otherwise.
+ *
+ * rb_absint_singlebit_p can be used to determine required buffer size
+ * for rb_integer_pack used with INTEGER_PACK_2COMP (two's complement).
+ *
+ * Following example calculates number of bits required to
+ * represent val in two's complement number, without sign bit.
+ *
+ *   size_t size;
+ *   int neg = FIXNUM_P(val) ? FIX2LONG(val) < 0 : BIGNUM_NEGATIVE_P(val);
+ *   size = rb_absint_numwords(val, 1, NULL)
+ *   if (size == (size_t)-1) ...overflow...
+ *   if (neg && rb_absint_singlebit_p(val))
+ *     size--;
+ *
+ * Following example calculates number of bytes required to
+ * represent val in two's complement number, with sign bit.
+ *
+ *   size_t size;
+ *   int neg = FIXNUM_P(val) ? FIX2LONG(val) < 0 : BIGNUM_NEGATIVE_P(val);
+ *   int nlz_bits;
+ *   size = rb_absint_size(val, &nlz_bits);
+ *   if (nlz_bits == 0 && !(neg && rb_absint_singlebit_p(val)))
+ *     size++;
+ */
+int
+rb_absint_singlebit_p(VALUE val)
 {
-    LONG_LONG q;
+    BDIGIT *dp;
+    BDIGIT *de;
+    BDIGIT fixbuf[bdigit_roomof(sizeof(long))];
+    BDIGIT d;
 
     val = rb_to_int(val);
+
     if (FIXNUM_P(val)) {
-	q = FIX2LONG(val);
+        long v = FIX2LONG(val);
+        if (v < 0) {
+            v = -v;
+        }
+#if SIZEOF_BDIGIT >= SIZEOF_LONG
+        fixbuf[0] = v;
+#else
+        {
+            int i;
+            for (i = 0; i < numberof(fixbuf); i++) {
+                fixbuf[i] = BIGLO(v);
+                v = BIGDN(v);
+            }
+        }
+#endif
+        dp = fixbuf;
+        de = fixbuf + numberof(fixbuf);
     }
     else {
-	long len = RBIGNUM_LEN(val);
-	BDIGIT *ds;
+        dp = BDIGITS(val);
+        de = dp + BIGNUM_LEN(val);
+    }
+    while (dp < de && de[-1] == 0)
+        de--;
+    while (dp < de && dp[0] == 0)
+        dp++;
+    if (dp == de) /* no bit set. */
+        return 0;
+    if (dp != de-1) /* two non-zero words. two bits set, at least. */
+        return 0;
+    d = *dp;
+    return POW2_P(d);
+}
 
-	if (len > SIZEOF_LONG_LONG/SIZEOF_BDIGITS) {
-	    len = SIZEOF_LONG_LONG/SIZEOF_BDIGITS;
-	}
-	ds = BDIGITS(val);
-	q = 0;
-	while (len--) {
-	    q = BIGUP(q);
-	    q += ds[len];
-	}
-	if (!RBIGNUM_SIGN(val)) q = -q;
+
+/*
+ * Export an integer into a buffer.
+ *
+ * This function fills the buffer specified by _words_ and _numwords_ as
+ * val in the format specified by _wordsize_, _nails_ and _flags_.
+ *
+ * [val] Fixnum, Bignum or another integer like object which has to_int method.
+ * [words] buffer to export abs(val).
+ * [numwords] the size of given buffer as number of words.
+ * [wordsize] the size of word as number of bytes.
+ * [nails] number of padding bits in a word.
+ *   Most significant nails bits of each word are filled by zero.
+ * [flags] bitwise or of constants which name starts "INTEGER_PACK_".
+ *
+ * flags:
+ * [INTEGER_PACK_MSWORD_FIRST] Store the most significant word as the first word.
+ * [INTEGER_PACK_LSWORD_FIRST] Store the least significant word as the first word.
+ * [INTEGER_PACK_MSBYTE_FIRST] Store the most significant byte in a word as the first byte in the word.
+ * [INTEGER_PACK_LSBYTE_FIRST] Store the least significant byte in a word as the first byte in the word.
+ * [INTEGER_PACK_NATIVE_BYTE_ORDER] INTEGER_PACK_MSBYTE_FIRST or INTEGER_PACK_LSBYTE_FIRST corresponding to the host's endian.
+ * [INTEGER_PACK_2COMP] Use 2's complement representation.
+ * [INTEGER_PACK_LITTLE_ENDIAN] Same as INTEGER_PACK_LSWORD_FIRST|INTEGER_PACK_LSBYTE_FIRST
+ * [INTEGER_PACK_BIG_ENDIAN] Same as INTEGER_PACK_MSWORD_FIRST|INTEGER_PACK_MSBYTE_FIRST
+ * [INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION] Use generic implementation (for test and debug).
+ *
+ * This function fills the buffer specified by _words_
+ * as abs(val) if INTEGER_PACK_2COMP is not specified in _flags_.
+ * If INTEGER_PACK_2COMP is specified, 2's complement representation of val is
+ * filled in the buffer.
+ *
+ * This function returns the signedness and overflow condition.
+ * The overflow condition depends on INTEGER_PACK_2COMP.
+ *
+ * INTEGER_PACK_2COMP is not specified:
+ *   -2 : negative overflow.  val <= -2**(numwords*(wordsize*CHAR_BIT-nails))
+ *   -1 : negative without overflow.  -2**(numwords*(wordsize*CHAR_BIT-nails)) < val < 0
+ *   0 : zero.  val == 0
+ *   1 : positive without overflow.  0 < val < 2**(numwords*(wordsize*CHAR_BIT-nails))
+ *   2 : positive overflow.  2**(numwords*(wordsize*CHAR_BIT-nails)) <= val
+ *
+ * INTEGER_PACK_2COMP is specified:
+ *   -2 : negative overflow.  val < -2**(numwords*(wordsize*CHAR_BIT-nails))
+ *   -1 : negative without overflow.  -2**(numwords*(wordsize*CHAR_BIT-nails)) <= val < 0
+ *   0 : zero.  val == 0
+ *   1 : positive without overflow.  0 < val < 2**(numwords*(wordsize*CHAR_BIT-nails))
+ *   2 : positive overflow.  2**(numwords*(wordsize*CHAR_BIT-nails)) <= val
+ *
+ * The value, -2**(numwords*(wordsize*CHAR_BIT-nails)), is representable
+ * in 2's complement representation but not representable in absolute value.
+ * So -1 is returned for the value if INTEGER_PACK_2COMP is specified
+ * but returns -2 if INTEGER_PACK_2COMP is not specified.
+ *
+ * The least significant words are filled in the buffer when overflow occur.
+ */
+
+int
+rb_integer_pack(VALUE val, void *words, size_t numwords, size_t wordsize, size_t nails, int flags)
+{
+    int sign;
+    BDIGIT *ds;
+    size_t num_bdigits;
+    BDIGIT fixbuf[bdigit_roomof(sizeof(long))];
+
+    RB_GC_GUARD(val) = rb_to_int(val);
+
+    if (FIXNUM_P(val)) {
+        long v = FIX2LONG(val);
+        if (v < 0) {
+            sign = -1;
+            v = -v;
+        }
+        else {
+            sign = 1;
+        }
+#if SIZEOF_BDIGIT >= SIZEOF_LONG
+        fixbuf[0] = v;
+#else
+        {
+            int i;
+            for (i = 0; i < numberof(fixbuf); i++) {
+                fixbuf[i] = BIGLO(v);
+                v = BIGDN(v);
+            }
+        }
+#endif
+        ds = fixbuf;
+        num_bdigits = numberof(fixbuf);
+    }
+    else {
+        sign = BIGNUM_POSITIVE_P(val) ? 1 : -1;
+        ds = BDIGITS(val);
+        num_bdigits = BIGNUM_LEN(val);
     }
-    memcpy(buf, (char*)&q, SIZEOF_LONG_LONG);
+
+    return bary_pack(sign, ds, num_bdigits, words, numwords, wordsize, nails, flags);
 }
 
+/*
+ * Import an integer into a buffer.
+ *
+ * [words] buffer to import.
+ * [numwords] the size of given buffer as number of words.
+ * [wordsize] the size of word as number of bytes.
+ * [nails] number of padding bits in a word.
+ *   Most significant nails bits of each word are ignored.
+ * [flags] bitwise or of constants which name starts "INTEGER_PACK_".
+ *
+ * flags:
+ * [INTEGER_PACK_MSWORD_FIRST] Interpret the first word as the most significant word.
+ * [INTEGER_PACK_LSWORD_FIRST] Interpret the first word as the least significant word.
+ * [INTEGER_PACK_MSBYTE_FIRST] Interpret the first byte in a word as the most significant byte in the word.
+ * [INTEGER_PACK_LSBYTE_FIRST] Interpret the first byte in a word as the least significant byte in the word.
+ * [INTEGER_PACK_NATIVE_BYTE_ORDER] INTEGER_PACK_MSBYTE_FIRST or INTEGER_PACK_LSBYTE_FIRST corresponding to the host's endian.
+ * [INTEGER_PACK_2COMP] Use 2's complement representation.
+ * [INTEGER_PACK_LITTLE_ENDIAN] Same as INTEGER_PACK_LSWORD_FIRST|INTEGER_PACK_LSBYTE_FIRST
+ * [INTEGER_PACK_BIG_ENDIAN] Same as INTEGER_PACK_MSWORD_FIRST|INTEGER_PACK_MSBYTE_FIRST
+ * [INTEGER_PACK_FORCE_BIGNUM] the result will be a Bignum
+ *   even if it is representable as a Fixnum.
+ * [INTEGER_PACK_NEGATIVE] Returns non-positive value.
+ *   (Returns non-negative value if not specified.)
+ * [INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION] Use generic implementation (for test and debug).
+ *
+ * This function returns the imported integer as Fixnum or Bignum.
+ *
+ * The range of the result value depends on INTEGER_PACK_2COMP and INTEGER_PACK_NEGATIVE.
+ *
+ * INTEGER_PACK_2COMP is not set:
+ *   0 <= val < 2**(numwords*(wordsize*CHAR_BIT-nails)) if !INTEGER_PACK_NEGATIVE
+ *   -2**(numwords*(wordsize*CHAR_BIT-nails)) < val <= 0 if INTEGER_PACK_NEGATIVE
+ *
+ * INTEGER_PACK_2COMP is set:
+ *   -2**(numwords*(wordsize*CHAR_BIT-nails)-1) <= val <= 2**(numwords*(wordsize*CHAR_BIT-nails)-1)-1 if !INTEGER_PACK_NEGATIVE
+ *   -2**(numwords*(wordsize*CHAR_BIT-nails)) <= val <= -1 if INTEGER_PACK_NEGATIVE
+ *
+ * INTEGER_PACK_2COMP without INTEGER_PACK_NEGATIVE means sign extension.
+ * INTEGER_PACK_2COMP with INTEGER_PACK_NEGATIVE mean assuming the higher bits are 1.
+ *
+ * Note that this function returns 0 when numwords is zero and
+ * INTEGER_PACK_2COMP is set but INTEGER_PACK_NEGATIVE is not set.
+ */
+
 VALUE
-rb_quad_unpack(const char *buf, int sign)
+rb_integer_unpack(const void *words, size_t numwords, size_t wordsize, size_t nails, int flags)
 {
-    unsigned LONG_LONG q;
-    long neg = 0;
-    long i;
-    BDIGIT *digits;
-    VALUE big;
-
-    memcpy(&q, buf, SIZEOF_LONG_LONG);
-    if (sign) {
-	if (FIXABLE((LONG_LONG)q)) return LONG2FIX((LONG_LONG)q);
-	if ((LONG_LONG)q < 0) {
-	    q = -(LONG_LONG)q;
-	    neg = 1;
-	}
+    VALUE val;
+    size_t num_bdigits;
+    int sign;
+    int nlp_bits;
+    BDIGIT *ds;
+    BDIGIT fixbuf[2] = { 0, 0 };
+
+    validate_integer_pack_format(numwords, wordsize, nails, flags,
+            INTEGER_PACK_MSWORD_FIRST|
+            INTEGER_PACK_LSWORD_FIRST|
+            INTEGER_PACK_MSBYTE_FIRST|
+            INTEGER_PACK_LSBYTE_FIRST|
+            INTEGER_PACK_NATIVE_BYTE_ORDER|
+            INTEGER_PACK_2COMP|
+            INTEGER_PACK_FORCE_BIGNUM|
+            INTEGER_PACK_NEGATIVE|
+            INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION);
+
+    num_bdigits = integer_unpack_num_bdigits(numwords, wordsize, nails, &nlp_bits);
+
+    if (LONG_MAX-1 < num_bdigits)
+        rb_raise(rb_eArgError, "too big to unpack as an integer");
+    if (num_bdigits <= numberof(fixbuf) && !(flags & INTEGER_PACK_FORCE_BIGNUM)) {
+        val = Qfalse;
+        ds = fixbuf;
     }
     else {
-	if (POSFIXABLE(q)) return LONG2FIX(q);
+        val = bignew((long)num_bdigits, 0);
+        ds = BDIGITS(val);
     }
+    sign = bary_unpack_internal(ds, num_bdigits, words, numwords, wordsize, nails, flags, nlp_bits);
 
-    i = 0;
-    big = bignew(DIGSPERLL, 1);
-    digits = BDIGITS(big);
-    while (i < DIGSPERLL) {
-	digits[i++] = BIGLO(q);
-	q = BIGDN(q);
+    if (sign == -2) {
+        if (val) {
+            big_extend_carry(val);
+        }
+        else if (num_bdigits == numberof(fixbuf)) {
+            val = bignew((long)num_bdigits+1, 0);
+	    MEMCPY(BDIGITS(val), fixbuf, BDIGIT, num_bdigits);
+            BDIGITS(val)[num_bdigits++] = 1;
+        }
+        else {
+            ds[num_bdigits++] = 1;
+        }
     }
 
-    i = DIGSPERLL;
-    while (i-- && !digits[i]) ;
-    RBIGNUM_SET_LEN(big, i+1);
-
-    if (neg) {
-	RBIGNUM_SET_SIGN(big, 0);
+    if (!val) {
+        BDIGIT_DBL u = fixbuf[0] + BIGUP(fixbuf[1]);
+        if (u == 0)
+            return LONG2FIX(0);
+	if (0 < sign && POSFIXABLE(u))
+            return LONG2FIX(u);
+	if (sign < 0 && BDIGIT_MSB(fixbuf[1]) == 0 &&
+                NEGFIXABLE(-(BDIGIT_DBL_SIGNED)u))
+            return LONG2FIX(-(BDIGIT_DBL_SIGNED)u);
+        val = bignew((long)num_bdigits, 0 <= sign);
+        MEMCPY(BDIGITS(val), fixbuf, BDIGIT, num_bdigits);
     }
-    return bignorm(big);
+
+    if ((flags & INTEGER_PACK_FORCE_BIGNUM) && sign != 0 &&
+        bary_zero_p(BDIGITS(val), BIGNUM_LEN(val)))
+        sign = 0;
+    BIGNUM_SET_SIGN(val, 0 <= sign);
+
+    if (flags & INTEGER_PACK_FORCE_BIGNUM)
+        return bigtrunc(val);
+    return bignorm(val);
 }
 
-#else
+#define conv_digit(c) (ruby_digit36_to_number_table[(unsigned char)(c)])
 
-static int
-quad_buf_complement(char *buf, size_t len)
+static void
+str2big_scan_digits(const char *s, const char *str, int base, int badcheck, size_t *num_digits_p, size_t *len_p)
 {
-    size_t i;
-    for (i = 0; i < len; i++)
-        buf[i] = ~buf[i];
-    for (i = 0; i < len; i++) {
-        buf[i]++;
-        if (buf[i] != 0)
-            return 0;
+    char nondigit = 0;
+    size_t num_digits = 0;
+    const char *digits_start = str;
+    const char *digits_end = str;
+
+    int c;
+
+    if (badcheck && *str == '_') goto bad;
+
+    while ((c = *str++) != 0) {
+	if (c == '_') {
+	    if (nondigit) {
+		if (badcheck) goto bad;
+		break;
+	    }
+	    nondigit = (char) c;
+	    continue;
+	}
+	else if ((c = conv_digit(c)) < 0) {
+	    break;
+	}
+	if (c >= base) break;
+	nondigit = 0;
+        num_digits++;
+        digits_end = str;
     }
-    return 1;
+    if (badcheck) {
+	str--;
+	if (s+1 < str && str[-1] == '_') goto bad;
+	while (*str && ISSPACE(*str)) str++;
+	if (*str) {
+	  bad:
+	    rb_invalid_str(s, "Integer()");
+	}
+    }
+    *num_digits_p = num_digits;
+    *len_p = digits_end - digits_start;
 }
 
-void
-rb_quad_pack(char *buf, VALUE val)
-{
-    long len;
+static VALUE
+str2big_poweroftwo(
+    int sign,
+    const char *digits_start,
+    const char *digits_end,
+    size_t num_digits,
+    int bits_per_digit)
+{
+    BDIGIT *dp;
+    BDIGIT_DBL dd;
+    int numbits;
+
+    size_t num_bdigits;
+    const char *p;
+    int c;
+    VALUE z;
 
-    memset(buf, 0, QUAD_SIZE);
-    val = rb_to_int(val);
-    if (FIXNUM_P(val)) {
-	val = rb_int2big(FIX2LONG(val));
+    num_bdigits = (num_digits / BITSPERDIG) * bits_per_digit + roomof((num_digits % BITSPERDIG) * bits_per_digit, BITSPERDIG);
+    z = bignew(num_bdigits, sign);
+    dp = BDIGITS(z);
+    dd = 0;
+    numbits = 0;
+    for (p = digits_end; digits_start < p; p--) {
+        if ((c = conv_digit(p[-1])) < 0)
+            continue;
+        dd |= (BDIGIT_DBL)c << numbits;
+        numbits += bits_per_digit;
+        if (BITSPERDIG <= numbits) {
+            *dp++ = BIGLO(dd);
+            dd = BIGDN(dd);
+            numbits -= BITSPERDIG;
+        }
     }
-    len = RBIGNUM_LEN(val) * SIZEOF_BDIGITS;
-    if (len > QUAD_SIZE) {
-        len = QUAD_SIZE;
+    if (numbits) {
+        *dp++ = BIGLO(dd);
     }
-    memcpy(buf, (char*)BDIGITS(val), len);
-    if (RBIGNUM_NEGATIVE_P(val)) {
-        quad_buf_complement(buf, QUAD_SIZE);
+    assert((size_t)(dp - BDIGITS(z)) == num_bdigits);
+
+    return z;
+}
+
+static VALUE
+str2big_normal(
+    int sign,
+    const char *digits_start,
+    const char *digits_end,
+    size_t num_bdigits,
+    int base)
+{
+    size_t blen = 1;
+    BDIGIT *zds;
+    BDIGIT_DBL num;
+
+    size_t i;
+    const char *p;
+    int c;
+    VALUE z;
+
+    z = bignew(num_bdigits, sign);
+    zds = BDIGITS(z);
+    BDIGITS_ZERO(zds, num_bdigits);
+
+    for (p = digits_start; p < digits_end; p++) {
+        if ((c = conv_digit(*p)) < 0)
+            continue;
+        num = c;
+        i = 0;
+        for (;;) {
+            while (i<blen) {
+                num += (BDIGIT_DBL)zds[i]*base;
+                zds[i++] = BIGLO(num);
+                num = BIGDN(num);
+            }
+            if (num) {
+                blen++;
+                continue;
+            }
+            break;
+        }
+        assert(blen <= num_bdigits);
     }
+
+    return z;
 }
 
-#define BNEG(b) (RSHIFT(((BDIGIT*)(b))[QUAD_SIZE/SIZEOF_BDIGITS-1],BITSPERDIG-1) != 0)
+static VALUE
+str2big_karatsuba(
+    int sign,
+    const char *digits_start,
+    const char *digits_end,
+    size_t num_digits,
+    size_t num_bdigits,
+    int digits_per_bdigits_dbl,
+    int base)
+{
+    VALUE powerv;
+    size_t unit;
+    VALUE tmpuv = 0;
+    BDIGIT *uds, *vds, *tds;
+    BDIGIT_DBL dd;
+    BDIGIT_DBL current_base;
+    int m;
+    int power_level = 0;
 
-VALUE
-rb_quad_unpack(const char *buf, int sign)
-{
-    VALUE big = bignew(QUAD_SIZE/SIZEOF_BDIGITS, 1);
+    size_t i;
+    const char *p;
+    int c;
+    VALUE z;
+
+    uds = ALLOCV_N(BDIGIT, tmpuv, 2*num_bdigits);
+    vds = uds + num_bdigits;
 
-    memcpy((char*)BDIGITS(big), buf, QUAD_SIZE);
-    if (sign && BNEG(buf)) {
-	char *tmp = (char*)BDIGITS(big);
+    powerv = power_cache_get_power(base, power_level, NULL);
 
-	RBIGNUM_SET_SIGN(big, 0);
-        quad_buf_complement(tmp, QUAD_SIZE);
+    i = 0;
+    dd = 0;
+    current_base = 1;
+    m = digits_per_bdigits_dbl;
+    if (num_digits < (size_t)m)
+        m = (int)num_digits;
+    for (p = digits_end; digits_start < p; p--) {
+        if ((c = conv_digit(p[-1])) < 0)
+            continue;
+        dd = dd + c * current_base;
+        current_base *= base;
+        num_digits--;
+        m--;
+        if (m == 0) {
+            uds[i++] = BIGLO(dd);
+            uds[i++] = (BDIGIT)BIGDN(dd);
+            dd = 0;
+            m = digits_per_bdigits_dbl;
+            if (num_digits < (size_t)m)
+                m = (int)num_digits;
+            current_base = 1;
+        }
+    }
+    assert(i == num_bdigits);
+    for (unit = 2; unit < num_bdigits; unit *= 2) {
+        for (i = 0; i < num_bdigits; i += unit*2) {
+            if (2*unit <= num_bdigits - i) {
+                bary_mul(vds+i, unit*2, BDIGITS(powerv), BIGNUM_LEN(powerv), uds+i+unit, unit);
+                bary_add(vds+i, unit*2, vds+i, unit*2, uds+i, unit);
+            }
+            else if (unit <= num_bdigits - i) {
+                bary_mul(vds+i, num_bdigits-i, BDIGITS(powerv), BIGNUM_LEN(powerv), uds+i+unit, num_bdigits-(i+unit));
+                bary_add(vds+i, num_bdigits-i, vds+i, num_bdigits-i, uds+i, unit);
+            }
+            else {
+                MEMCPY(vds+i, uds+i, BDIGIT, num_bdigits-i);
+            }
+        }
+        power_level++;
+        powerv = power_cache_get_power(base, power_level, NULL);
+        tds = vds;
+        vds = uds;
+        uds = tds;
     }
+    BARY_TRUNC(uds, num_bdigits);
+    z = bignew(num_bdigits, sign);
+    MEMCPY(BDIGITS(z), uds, BDIGIT, num_bdigits);
+
+    if (tmpuv)
+        ALLOCV_END(tmpuv);
 
-    return bignorm(big);
+    return z;
 }
 
+#ifdef USE_GMP
+static VALUE
+str2big_gmp(
+    int sign,
+    const char *digits_start,
+    const char *digits_end,
+    size_t num_digits,
+    size_t num_bdigits,
+    int base)
+{
+    const size_t nails = (sizeof(BDIGIT)-SIZEOF_BDIGIT)*CHAR_BIT;
+    char *buf, *p;
+    const char *q;
+    VALUE tmps;
+    mpz_t mz;
+    VALUE z;
+    BDIGIT *zds;
+    size_t zn, count;
+
+    buf = ALLOCV_N(char, tmps, num_digits+1);
+    p = buf;
+    for (q = digits_start; q < digits_end; q++) {
+        if (conv_digit(*q) < 0)
+            continue;
+        *p++ = *q;
+    }
+    *p = '\0';
+
+    mpz_init(mz);
+    mpz_set_str(mz, buf, base);
+    zn = num_bdigits;
+    z = bignew(zn, sign);
+    zds = BDIGITS(z);
+    mpz_export(BDIGITS(z), &count, -1, sizeof(BDIGIT), 0, nails, mz);
+    BDIGITS_ZERO(zds+count, zn-count);
+    mpz_clear(mz);
+
+    if (tmps)
+        ALLOCV_END(tmps);
+
+    return z;
+}
 #endif
 
+/*
+ * Parse +str+ as Ruby Integer, i.e., underscores, 0d and 0b prefixes.
+ *
+ * str:      pointer to the string to be parsed.
+ *	     should be NUL-terminated.
+ * base:     base of conversion, must be 2..36, or -36..0.
+ *           if +base+ > 0, the conversion is done according to the +base+
+ *           and unmatched prefix is parsed as a part of the result if
+ *           present.
+ *           if +base+ <= 0, the conversion is done according to the
+ *           prefix if present, in base <code>-base</code> if +base+ < -1,
+ *           or in base 10.
+ * badcheck: if non-zero, +ArgumentError+ is raised when +str+ is not
+ *           valid as an Integer.  if zero, Fixnum 0 is returned in
+ *           that case.
+ */
 VALUE
 rb_cstr_to_inum(const char *str, int base, int badcheck)
 {
     const char *s = str;
-    char *end;
-    char sign = 1, nondigit = 0;
+    char sign = 1;
     int c;
-    BDIGIT_DBL num;
-    long len, blen = 1;
-    long i;
     VALUE z;
-    BDIGIT *zds;
 
-#undef ISDIGIT
-#define ISDIGIT(c) ('0' <= (c) && (c) <= '9')
-#define conv_digit(c) \
-    (!ISASCII(c) ? -1 : \
-     ISDIGIT(c) ? ((c) - '0') : \
-     ISLOWER(c) ? ((c) - 'a' + 10) : \
-     ISUPPER(c) ? ((c) - 'A' + 10) : \
-     -1)
+    int bits_per_digit;
+
+    const char *digits_start, *digits_end;
+    size_t num_digits;
+    size_t num_bdigits;
+    size_t len;
 
     if (!str) {
-	if (badcheck) goto bad;
+	if (badcheck) {
+          bad:
+            rb_invalid_str(s, "Integer()");
+        }
 	return INT2FIX(0);
     }
     while (ISSPACE(*str)) str++;
@@ -619,15 +3995,19 @@ rb_cstr_to_inum(const char *str, int base, int badcheck)
 	    switch (str[1]) {
 	      case 'x': case 'X':
 		base = 16;
+                str += 2;
 		break;
 	      case 'b': case 'B':
 		base = 2;
+                str += 2;
 		break;
 	      case 'o': case 'O':
 		base = 8;
+                str += 2;
 		break;
 	      case 'd': case 'D':
 		base = 10;
+                str += 2;
 		break;
 	      default:
 		base = 8;
@@ -640,47 +4020,28 @@ rb_cstr_to_inum(const char *str, int base, int badcheck)
 	    base = 10;
 	}
     }
-    switch (base) {
-      case 2:
-	len = 1;
+    else if (base == 2) {
 	if (str[0] == '0' && (str[1] == 'b'||str[1] == 'B')) {
 	    str += 2;
 	}
-	break;
-      case 3:
-	len = 2;
-	break;
-      case 8:
+    }
+    else if (base == 8) {
 	if (str[0] == '0' && (str[1] == 'o'||str[1] == 'O')) {
 	    str += 2;
 	}
-      case 4: case 5: case 6: case 7:
-	len = 3;
-	break;
-      case 10:
+    }
+    else if (base == 10) {
 	if (str[0] == '0' && (str[1] == 'd'||str[1] == 'D')) {
 	    str += 2;
 	}
-      case 9: case 11: case 12: case 13: case 14: case 15:
-	len = 4;
-	break;
-      case 16:
-	len = 4;
+    }
+    else if (base == 16) {
 	if (str[0] == '0' && (str[1] == 'x'||str[1] == 'X')) {
 	    str += 2;
 	}
-	break;
-      default:
-	if (base < 2 || 36 < base) {
-	    rb_raise(rb_eArgError, "invalid radix %d", base);
-	}
-	if (base <= 32) {
-	    len = 5;
-	}
-	else {
-	    len = 6;
-	}
-	break;
+    }
+    if (base < 2 || 36 < base) {
+        rb_raise(rb_eArgError, "invalid radix %d", base);
     }
     if (*str == '0') {		/* squeeze preceding 0s */
 	int us = 0;
@@ -688,8 +4049,10 @@ rb_cstr_to_inum(const char *str, int base, int badcheck)
 	    if (c == '_') {
 		if (++us >= 2)
 		    break;
-	    } else
+	    }
+	    else {
 		us = 0;
+	    }
 	}
 	if (!(c = *str) || ISSPACE(c)) --str;
     }
@@ -699,9 +4062,10 @@ rb_cstr_to_inum(const char *str, int base, int badcheck)
 	if (badcheck) goto bad;
 	return INT2FIX(0);
     }
-    len *= strlen(str)*sizeof(char);
 
-    if ((size_t)len <= (sizeof(long)*CHAR_BIT)) {
+    bits_per_digit = bit_length(base-1);
+    if (bits_per_digit * strlen(str) <= sizeof(long) * CHAR_BIT) {
+        char *end;
 	unsigned long val = STRTOUL(str, &end, base);
 
 	if (str < end && *end == '_') goto bigparse;
@@ -720,54 +4084,40 @@ rb_cstr_to_inum(const char *str, int base, int badcheck)
 	}
 	else {
 	    VALUE big = rb_uint2big(val);
-	    RBIGNUM_SET_SIGN(big, sign);
+	    BIGNUM_SET_SIGN(big, sign);
 	    return bignorm(big);
 	}
     }
+
   bigparse:
-    len = (len/BITSPERDIG)+1;
-    if (badcheck && *str == '_') goto bad;
+    digits_start = str;
+    str2big_scan_digits(s, str, base, badcheck, &num_digits, &len);
+    digits_end = digits_start + len;
 
-    z = bignew(len, sign);
-    zds = BDIGITS(z);
-    for (i=len;i--;) zds[i]=0;
-    while ((c = *str++) != 0) {
-	if (c == '_') {
-	    if (nondigit) {
-		if (badcheck) goto bad;
-		break;
-	    }
-	    nondigit = (char) c;
-	    continue;
-	}
-	else if ((c = conv_digit(c)) < 0) {
-	    break;
-	}
-	if (c >= base) break;
-	nondigit = 0;
-	i = 0;
-	num = c;
-	for (;;) {
-	    while (i<blen) {
-		num += (BDIGIT_DBL)zds[i]*base;
-		zds[i++] = BIGLO(num);
-		num = BIGDN(num);
-	    }
-	    if (num) {
-		blen++;
-		continue;
-	    }
-	    break;
-	}
+    if (POW2_P(base)) {
+        z = str2big_poweroftwo(sign, digits_start, digits_end, num_digits,
+                bits_per_digit);
     }
-    if (badcheck) {
-	str--;
-	if (s+1 < str && str[-1] == '_') goto bad;
-	while (*str && ISSPACE(*str)) str++;
-	if (*str) {
-	  bad:
-	    rb_invalid_str(s, "Integer()");
-	}
+    else {
+        int digits_per_bdigits_dbl;
+        maxpow_in_bdigit_dbl(base, &digits_per_bdigits_dbl);
+        num_bdigits = roomof(num_digits, digits_per_bdigits_dbl)*2;
+
+#ifdef USE_GMP
+        if (GMP_STR2BIG_DIGITS < num_bdigits) {
+            z = str2big_gmp(sign, digits_start, digits_end, num_digits,
+                    num_bdigits, base);
+        }
+        else
+#endif
+        if (num_bdigits < KARATSUBA_MUL_DIGITS) {
+            z = str2big_normal(sign, digits_start, digits_end,
+                    num_bdigits, base);
+        }
+        else {
+            z = str2big_karatsuba(sign, digits_start, digits_end, num_digits,
+                    num_bdigits, digits_per_bdigits_dbl, base);
+        }
     }
 
     return bignorm(z);
@@ -805,26 +4155,178 @@ rb_str_to_inum(VALUE str, int base, int badcheck)
     return ret;
 }
 
+VALUE
+rb_str2big_poweroftwo(VALUE arg, int base, int badcheck)
+{
+    int positive_p = 1;
+    const char *s, *str;
+    const char *digits_start, *digits_end;
+    size_t num_digits;
+    size_t len;
+    VALUE z;
+
+    if (base < 2 || 36 < base || !POW2_P(base)) {
+        rb_raise(rb_eArgError, "invalid radix %d", base);
+    }
+
+    rb_must_asciicompat(arg);
+    s = str = StringValueCStr(arg);
+    if (*str == '-') {
+        str++;
+        positive_p = 0;
+    }
+
+    digits_start = str;
+    str2big_scan_digits(s, str, base, badcheck, &num_digits, &len);
+    digits_end = digits_start + len;
+
+    z = str2big_poweroftwo(positive_p, digits_start, digits_end, num_digits,
+            bit_length(base-1));
+
+    RB_GC_GUARD(arg);
+
+    return bignorm(z);
+}
+
+VALUE
+rb_str2big_normal(VALUE arg, int base, int badcheck)
+{
+    int positive_p = 1;
+    const char *s, *str;
+    const char *digits_start, *digits_end;
+    size_t num_digits;
+    size_t len;
+    VALUE z;
+
+    int digits_per_bdigits_dbl;
+    size_t num_bdigits;
+
+    if (base < 2 || 36 < base) {
+        rb_raise(rb_eArgError, "invalid radix %d", base);
+    }
+
+    rb_must_asciicompat(arg);
+    s = str = StringValueCStr(arg);
+    if (*str == '-') {
+        str++;
+        positive_p = 0;
+    }
+
+    digits_start = str;
+    str2big_scan_digits(s, str, base, badcheck, &num_digits, &len);
+    digits_end = digits_start + len;
+
+    maxpow_in_bdigit_dbl(base, &digits_per_bdigits_dbl);
+    num_bdigits = roomof(num_digits, digits_per_bdigits_dbl)*2;
+
+    z = str2big_normal(positive_p, digits_start, digits_end,
+            num_bdigits, base);
+
+    RB_GC_GUARD(arg);
+
+    return bignorm(z);
+}
+
+VALUE
+rb_str2big_karatsuba(VALUE arg, int base, int badcheck)
+{
+    int positive_p = 1;
+    const char *s, *str;
+    const char *digits_start, *digits_end;
+    size_t num_digits;
+    size_t len;
+    VALUE z;
+
+    int digits_per_bdigits_dbl;
+    size_t num_bdigits;
+
+    if (base < 2 || 36 < base) {
+        rb_raise(rb_eArgError, "invalid radix %d", base);
+    }
+
+    rb_must_asciicompat(arg);
+    s = str = StringValueCStr(arg);
+    if (*str == '-') {
+        str++;
+        positive_p = 0;
+    }
+
+    digits_start = str;
+    str2big_scan_digits(s, str, base, badcheck, &num_digits, &len);
+    digits_end = digits_start + len;
+
+    maxpow_in_bdigit_dbl(base, &digits_per_bdigits_dbl);
+    num_bdigits = roomof(num_digits, digits_per_bdigits_dbl)*2;
+
+    z = str2big_karatsuba(positive_p, digits_start, digits_end, num_digits,
+            num_bdigits, digits_per_bdigits_dbl, base);
+
+    RB_GC_GUARD(arg);
+
+    return bignorm(z);
+}
+
+#ifdef USE_GMP
+VALUE
+rb_str2big_gmp(VALUE arg, int base, int badcheck)
+{
+    int positive_p = 1;
+    const char *s, *str;
+    const char *digits_start, *digits_end;
+    size_t num_digits;
+    size_t len;
+    VALUE z;
+
+    int digits_per_bdigits_dbl;
+    size_t num_bdigits;
+
+    if (base < 2 || 36 < base) {
+        rb_raise(rb_eArgError, "invalid radix %d", base);
+    }
+
+    rb_must_asciicompat(arg);
+    s = str = StringValueCStr(arg);
+    if (*str == '-') {
+        str++;
+        positive_p = 0;
+    }
+
+    digits_start = str;
+    str2big_scan_digits(s, str, base, badcheck, &num_digits, &len);
+    digits_end = digits_start + len;
+
+    maxpow_in_bdigit_dbl(base, &digits_per_bdigits_dbl);
+    num_bdigits = roomof(num_digits, digits_per_bdigits_dbl)*2;
+
+    z = str2big_gmp(positive_p, digits_start, digits_end, num_digits, num_bdigits, base);
+
+    RB_GC_GUARD(arg);
+
+    return bignorm(z);
+}
+#endif
+
 #if HAVE_LONG_LONG
 
 static VALUE
 rb_ull2big(unsigned LONG_LONG n)
 {
-    BDIGIT_DBL num = n;
-    long i = 0;
-    BDIGIT *digits;
-    VALUE big;
+    long i;
+    VALUE big = bignew(bdigit_roomof(SIZEOF_LONG_LONG), 1);
+    BDIGIT *digits = BDIGITS(big);
 
-    big = bignew(DIGSPERLL, 1);
-    digits = BDIGITS(big);
-    while (i < DIGSPERLL) {
-	digits[i++] = BIGLO(num);
-	num = BIGDN(num);
+#if SIZEOF_BDIGIT >= SIZEOF_LONG_LONG
+    digits[0] = n;
+#else
+    for (i = 0; i < bdigit_roomof(SIZEOF_LONG_LONG); i++) {
+	digits[i] = BIGLO(n);
+	n = BIGDN(n);
     }
+#endif
 
-    i = DIGSPERLL;
+    i = bdigit_roomof(SIZEOF_LONG_LONG);
     while (i-- && !digits[i]) ;
-    RBIGNUM_SET_LEN(big, i+1);
+    BIGNUM_SET_LEN(big, i+1);
     return big;
 }
 
@@ -832,15 +4334,19 @@ static VALUE
 rb_ll2big(LONG_LONG n)
 {
     long neg = 0;
+    unsigned LONG_LONG u;
     VALUE big;
 
     if (n < 0) {
-	n = -n;
+        u = 1 + (unsigned LONG_LONG)(-(n + 1)); /* u = -n avoiding overflow */
 	neg = 1;
     }
-    big = rb_ull2big(n);
+    else {
+        u = n;
+    }
+    big = rb_ull2big(u);
     if (neg) {
-	RBIGNUM_SET_SIGN(big, 0);
+	BIGNUM_SET_SIGN(big, 0);
     }
     return big;
 }
@@ -873,292 +4379,549 @@ rb_str2inum(VALUE str, int base)
     return rb_str_to_inum(str, base, base==0);
 }
 
-const char ruby_digitmap[] = "0123456789abcdefghijklmnopqrstuvwxyz";
-
-static VALUE bigsqr(VALUE x);
-static void bigdivmod(VALUE x, VALUE y, volatile VALUE *divp, volatile VALUE *modp);
-
-#define POW2_P(x) (((x)&((x)-1))==0)
-
-static inline int
-ones(register unsigned long x)
+static VALUE
+big_shift3(VALUE x, int lshift_p, size_t shift_numdigits, int shift_numbits)
 {
-#if SIZEOF_LONG == 8
-# define MASK_55 0x5555555555555555UL
-# define MASK_33 0x3333333333333333UL
-# define MASK_0f 0x0f0f0f0f0f0f0f0fUL
-#else
-# define MASK_55 0x55555555UL
-# define MASK_33 0x33333333UL
-# define MASK_0f 0x0f0f0f0fUL
-#endif
-    x -= (x >> 1) & MASK_55;
-    x = ((x >> 2) & MASK_33) + (x & MASK_33);
-    x = ((x >> 4) + x) & MASK_0f;
-    x += (x >> 8);
-    x += (x >> 16);
-#if SIZEOF_LONG == 8
-    x += (x >> 32);
-#endif
-    return (int)(x & 0x7f);
-#undef MASK_0f
-#undef MASK_33
-#undef MASK_55
+    BDIGIT *xds, *zds;
+    long s1;
+    int s2;
+    VALUE z;
+    long xn;
+
+    if (lshift_p) {
+        if (LONG_MAX < shift_numdigits) {
+            rb_raise(rb_eArgError, "too big number");
+        }
+        s1 = shift_numdigits;
+        s2 = shift_numbits;
+        xn = BIGNUM_LEN(x);
+        z = bignew(xn+s1+1, BIGNUM_SIGN(x));
+        zds = BDIGITS(z);
+        BDIGITS_ZERO(zds, s1);
+        xds = BDIGITS(x);
+        zds[xn+s1] = bary_small_lshift(zds+s1, xds, xn, s2);
+    }
+    else {
+        long zn;
+        BDIGIT hibitsx;
+        if (LONG_MAX < shift_numdigits || (size_t)BIGNUM_LEN(x) <= shift_numdigits) {
+            if (BIGNUM_POSITIVE_P(x) ||
+                bary_zero_p(BDIGITS(x), BIGNUM_LEN(x)))
+                return INT2FIX(0);
+            else
+                return INT2FIX(-1);
+        }
+        s1 = shift_numdigits;
+        s2 = shift_numbits;
+        hibitsx = abs2twocomp(&x, &xn);
+        xds = BDIGITS(x);
+        if (xn <= s1) {
+            return hibitsx ? INT2FIX(-1) : INT2FIX(0);
+        }
+        zn = xn - s1;
+        z = bignew(zn, 0);
+        zds = BDIGITS(z);
+        bary_small_rshift(zds, xds+s1, zn, s2, hibitsx != 0 ? BDIGMAX : 0);
+        twocomp2abs_bang(z, hibitsx != 0);
+    }
+    RB_GC_GUARD(x);
+    return z;
 }
 
-static inline unsigned long
-next_pow2(register unsigned long x)
+static VALUE
+big_shift2(VALUE x, int lshift_p, VALUE y)
 {
-    x |= x >> 1;
-    x |= x >> 2;
-    x |= x >> 4;
-    x |= x >> 8;
-    x |= x >> 16;
-#if SIZEOF_LONG == 8
-    x |= x >> 32;
-#endif
-    return x + 1;
+    int sign;
+    size_t lens[2];
+    size_t shift_numdigits;
+    int shift_numbits;
+
+    assert(POW2_P(CHAR_BIT));
+    assert(POW2_P(BITSPERDIG));
+
+    if (BIGZEROP(x))
+        return INT2FIX(0);
+    sign = rb_integer_pack(y, lens, numberof(lens), sizeof(size_t), 0,
+        INTEGER_PACK_LSWORD_FIRST|INTEGER_PACK_NATIVE_BYTE_ORDER);
+    if (sign < 0) {
+        lshift_p = !lshift_p;
+        sign = -sign;
+    }
+    if (lshift_p) {
+        if (1 < sign || CHAR_BIT <= lens[1])
+            rb_raise(rb_eRangeError, "shift width too big");
+    }
+    else {
+        if (1 < sign || CHAR_BIT <= lens[1])
+            return BIGNUM_POSITIVE_P(x) ? INT2FIX(0) : INT2FIX(-1);
+    }
+    shift_numbits = (int)(lens[0] & (BITSPERDIG-1));
+    shift_numdigits = (lens[0] >> bit_length(BITSPERDIG-1)) |
+      (lens[1] << (CHAR_BIT*SIZEOF_SIZE_T - bit_length(BITSPERDIG-1)));
+    return big_shift3(x, lshift_p, shift_numdigits, shift_numbits);
 }
 
-static inline int
-floor_log2(register unsigned long x)
+static VALUE
+big_lshift(VALUE x, unsigned long shift)
 {
-    x |= x >> 1;
-    x |= x >> 2;
-    x |= x >> 4;
-    x |= x >> 8;
-    x |= x >> 16;
-#if SIZEOF_LONG == 8
-    x |= x >> 32;
-#endif
-    return (int)ones(x) - 1;
+    long s1 = shift/BITSPERDIG;
+    int s2 = (int)(shift%BITSPERDIG);
+    return big_shift3(x, 1, s1, s2);
 }
 
-static inline int
-ceil_log2(register unsigned long x)
+static VALUE
+big_rshift(VALUE x, unsigned long shift)
 {
-    return floor_log2(x) + !POW2_P(x);
+    long s1 = shift/BITSPERDIG;
+    int s2 = (int)(shift%BITSPERDIG);
+    return big_shift3(x, 0, s1, s2);
 }
 
-#define LOG2_KARATSUBA_DIGITS 7
-#define KARATSUBA_DIGITS (1L<<LOG2_KARATSUBA_DIGITS)
-#define MAX_BIG2STR_TABLE_ENTRIES 64
+#define MAX_BASE36_POWER_TABLE_ENTRIES (SIZEOF_SIZE_T * CHAR_BIT + 1)
 
-static VALUE big2str_power_cache[35][MAX_BIG2STR_TABLE_ENTRIES];
+static VALUE base36_power_cache[35][MAX_BASE36_POWER_TABLE_ENTRIES];
+static size_t base36_numdigits_cache[35][MAX_BASE36_POWER_TABLE_ENTRIES];
 
 static void
 power_cache_init(void)
 {
     int i, j;
     for (i = 0; i < 35; ++i) {
-	for (j = 0; j < MAX_BIG2STR_TABLE_ENTRIES; ++j) {
-	    big2str_power_cache[i][j] = Qnil;
+	for (j = 0; j < MAX_BASE36_POWER_TABLE_ENTRIES; ++j) {
+	    base36_power_cache[i][j] = Qnil;
 	}
     }
 }
 
 static inline VALUE
-power_cache_get_power0(int base, int i)
+power_cache_get_power(int base, int power_level, size_t *numdigits_ret)
 {
-    if (NIL_P(big2str_power_cache[base - 2][i])) {
-	big2str_power_cache[base - 2][i] =
-	    i == 0 ? rb_big_pow(rb_int2big(base), INT2FIX(KARATSUBA_DIGITS))
-		   : bigsqr(power_cache_get_power0(base, i - 1));
-	rb_gc_register_mark_object(big2str_power_cache[base - 2][i]);
+    /*
+     * MAX_BASE36_POWER_TABLE_ENTRIES is big enough to that
+     * base36_power_cache[base][MAX_BASE36_POWER_TABLE_ENTRIES-1] fills whole memory.
+     * So MAX_BASE36_POWER_TABLE_ENTRIES <= power_level is not possible to calculate.
+     *
+     * number-of-bytes =
+     * log256(base36_power_cache[base][MAX_BASE36_POWER_TABLE_ENTRIES-1]) =
+     * log256(maxpow_in_bdigit_dbl(base)**(2**(MAX_BASE36_POWER_TABLE_ENTRIES-1))) =
+     * log256(maxpow_in_bdigit_dbl(base)**(2**(SIZEOF_SIZE_T*CHAR_BIT))) =
+     * (2**(SIZEOF_SIZE_T*CHAR_BIT))*log256(maxpow_in_bdigit_dbl(base)) =
+     * (256**SIZEOF_SIZE_T)*log256(maxpow_in_bdigit_dbl(base)) >
+     * (256**SIZEOF_SIZE_T)*(sizeof(BDIGIT_DBL)-1) >
+     * 256**SIZEOF_SIZE_T
+     */
+    if (MAX_BASE36_POWER_TABLE_ENTRIES <= power_level)
+        rb_bug("too big power number requested: maxpow_in_bdigit_dbl(%d)**(2**%d)", base, power_level);
+
+    if (NIL_P(base36_power_cache[base - 2][power_level])) {
+        VALUE power;
+        size_t numdigits;
+        if (power_level == 0) {
+            int numdigits0;
+            BDIGIT_DBL dd = maxpow_in_bdigit_dbl(base, &numdigits0);
+            power = bignew(2, 1);
+            bdigitdbl2bary(BDIGITS(power), 2, dd);
+            numdigits = numdigits0;
+        }
+        else {
+            power = bigtrunc(bigsq(power_cache_get_power(base, power_level - 1, &numdigits)));
+            numdigits *= 2;
+        }
+        rb_obj_hide(power);
+        base36_power_cache[base - 2][power_level] = power;
+        base36_numdigits_cache[base - 2][power_level] = numdigits;
+	rb_gc_register_mark_object(power);
     }
-    return big2str_power_cache[base - 2][i];
+    if (numdigits_ret)
+        *numdigits_ret = base36_numdigits_cache[base - 2][power_level];
+    return base36_power_cache[base - 2][power_level];
 }
 
-static VALUE
-power_cache_get_power(int base, long n1, long* m1)
+struct big2str_struct {
+    int negative;
+    int base;
+    BDIGIT_DBL hbase2;
+    int hbase2_numdigits;
+    VALUE result;
+    char *ptr;
+};
+
+static void
+big2str_alloc(struct big2str_struct *b2s, size_t len)
 {
-    int i, m;
-    long j;
-    VALUE t;
+    if (LONG_MAX-1 < len)
+        rb_raise(rb_eArgError, "too big number");
+    b2s->result = rb_usascii_str_new(0, (long)(len + 1)); /* plus one for sign */
+    b2s->ptr = RSTRING_PTR(b2s->result);
+    if (b2s->negative)
+        *b2s->ptr++ = '-';
+}
 
-    if (n1 <= KARATSUBA_DIGITS)
-	rb_bug("n1 > KARATSUBA_DIGITS");
+static void
+big2str_2bdigits(struct big2str_struct *b2s, BDIGIT *xds, size_t xn, size_t taillen)
+{
+    size_t j;
+    BDIGIT_DBL num;
+    char buf[SIZEOF_BDIGIT_DBL*CHAR_BIT], *p;
+    int beginning = !b2s->ptr;
+    size_t len = 0;
+
+    assert(xn <= 2);
+    num = bary2bdigitdbl(xds, xn);
+
+    if (beginning) {
+        if (num == 0)
+            return;
+        p = buf;
+        j = sizeof(buf);
+        do {
+            p[--j] = ruby_digitmap[num % b2s->base];
+            num /= b2s->base;
+        } while (num);
+        len = sizeof(buf) - j;
+        big2str_alloc(b2s, len + taillen);
+	MEMCPY(b2s->ptr, buf + j, char, len);
+    }
+    else {
+        p = b2s->ptr;
+        j = b2s->hbase2_numdigits;
+        do {
+            p[--j] = ruby_digitmap[num % b2s->base];
+            num /= b2s->base;
+        } while (j);
+        len = b2s->hbase2_numdigits;
+    }
+    b2s->ptr += len;
+}
+
+static void
+big2str_karatsuba(struct big2str_struct *b2s, BDIGIT *xds, size_t xn, size_t wn,
+		  int power_level, size_t taillen)
+{
+    VALUE b;
+    size_t half_numdigits, lower_numdigits;
+    int lower_power_level;
+    size_t bn;
+    const BDIGIT *bds;
+    size_t len;
 
-    m = ceil_log2(n1);
-    if (m1) *m1 = 1 << m;
-    i = m - LOG2_KARATSUBA_DIGITS;
-    if (i >= MAX_BIG2STR_TABLE_ENTRIES)
-	i = MAX_BIG2STR_TABLE_ENTRIES - 1;
-    t = power_cache_get_power0(base, i);
+    /*
+     * Precondition:
+     * abs(x) < maxpow**(2**power_level)
+     * where
+     *   maxpow = maxpow_in_bdigit_dbl(base, &numdigits)
+     *
+     * This function generates sequence of zeros, and then stringized abs(x) into b2s->ptr.
+     *
+     * b2s->ptr can be NULL.
+     * It is allocated when the first character is generated via big2str_alloc.
+     *
+     * The prefix zeros should be generated if and only if b2s->ptr is not NULL.
+     * When the zeros are generated, the zeros and abs(x) consists
+     * numdigits*(2**power_level) characters at total.
+     *
+     * Note:
+     * power_cache_get_power(base, power_level, &len) may not be cached yet. It should not be called.
+     * power_cache_get_power(base, power_level-1, &len) should be cached already if 0 <= power_level-1.
+     */
 
-    j = KARATSUBA_DIGITS*(1 << i);
-    while (n1 > j) {
-	t = bigsqr(t);
-	j *= 2;
+    if (xn == 0 || bary_zero_p(xds, xn)) {
+	if (b2s->ptr) {
+            /* When x is zero, power_cache_get_power(base, power_level) should be cached already. */
+            power_cache_get_power(b2s->base, power_level, &len);
+	    memset(b2s->ptr, '0', len);
+            b2s->ptr += len;
+	}
+        return;
     }
-    return t;
-}
 
-/* big2str_muraken_find_n1
- *
- * Let a natural number x is given by:
- * x = 2^0 * x_0 + 2^1 * x_1 + ... + 2^(B*n_0 - 1) * x_{B*n_0 - 1},
- * where B is BITSPERDIG (i.e. BDIGITS*CHAR_BIT) and n_0 is
- * RBIGNUM_LEN(x).
- *
- * Now, we assume n_1 = min_n \{ n | 2^(B*n_0/2) <= b_1^(n_1) \}, so
- * it is realized that 2^(B*n_0) <= {b_1}^{2*n_1}, where b_1 is a
- * given radix number. And then, we have n_1 <= (B*n_0) /
- * (2*log_2(b_1)), therefore n_1 is given by ceil((B*n_0) /
- * (2*log_2(b_1))).
- */
-static long
-big2str_find_n1(VALUE x, int base)
-{
-    static const double log_2[] = {
-	1.0,              1.58496250072116, 2.0,
-	2.32192809488736, 2.58496250072116, 2.8073549220576,
-	3.0,              3.16992500144231, 3.32192809488736,
-	3.4594316186373,  3.58496250072116, 3.70043971814109,
-	3.8073549220576,  3.90689059560852, 4.0,
-	4.08746284125034, 4.16992500144231, 4.24792751344359,
-	4.32192809488736, 4.39231742277876, 4.4594316186373,
-	4.52356195605701, 4.58496250072116, 4.64385618977472,
-	4.70043971814109, 4.75488750216347, 4.8073549220576,
-	4.85798099512757, 4.90689059560852, 4.95419631038688,
-	5.0,              5.04439411935845, 5.08746284125034,
-	5.12928301694497, 5.16992500144231
-    };
-    long bits;
+    if (power_level == 0) {
+	big2str_2bdigits(b2s, xds, xn, taillen);
+        return;
+    }
 
-    if (base < 2 || 36 < base)
-	rb_bug("invalid radix %d", base);
+    lower_power_level = power_level-1;
+    b = power_cache_get_power(b2s->base, lower_power_level, &lower_numdigits);
+    bn = BIGNUM_LEN(b);
+    bds = BDIGITS(b);
 
-    if (FIXNUM_P(x)) {
-	bits = (SIZEOF_LONG*CHAR_BIT - 1)/2 + 1;
+    half_numdigits = lower_numdigits;
+
+    while (0 < lower_power_level &&
+            (xn < bn ||
+             (xn == bn && bary_cmp(xds, xn, bds, bn) < 0))) {
+        lower_power_level--;
+        b = power_cache_get_power(b2s->base, lower_power_level, &lower_numdigits);
+        bn = BIGNUM_LEN(b);
+        bds = BDIGITS(b);
+    }
+
+    if (lower_power_level == 0 &&
+            (xn < bn ||
+             (xn == bn && bary_cmp(xds, xn, bds, bn) < 0))) {
+        if (b2s->ptr) {
+            len = half_numdigits * 2 - lower_numdigits;
+            memset(b2s->ptr, '0', len);
+            b2s->ptr += len;
+        }
+	big2str_2bdigits(b2s, xds, xn, taillen);
     }
-    else if (BIGZEROP(x)) {
-	return 0;
+    else {
+        BDIGIT *qds, *rds;
+        size_t qn, rn;
+        BDIGIT *tds;
+        int shift;
+
+        if (lower_power_level != power_level-1 && b2s->ptr) {
+            len = (half_numdigits - lower_numdigits) * 2;
+            memset(b2s->ptr, '0', len);
+            b2s->ptr += len;
+        }
+
+        shift = nlz(bds[bn-1]);
+
+        qn = xn + BIGDIVREM_EXTRA_WORDS;
+
+        if (shift == 0) {
+            /* bigdivrem_restoring will not modify y.
+             * So use bds directly.  */
+            tds = (BDIGIT *)bds;
+            xds[xn] = 0;
+        }
+        else {
+            /* bigdivrem_restoring will modify y.
+             * So use temporary buffer.  */
+            tds = xds + qn;
+            assert(qn + bn <= xn + wn);
+            bary_small_lshift(tds, bds, bn, shift);
+            xds[xn] = bary_small_lshift(xds, xds, xn, shift);
+        }
+
+        bigdivrem_restoring(xds, qn, tds, bn);
+
+        rds = xds;
+        rn = bn;
+
+        qds = xds + bn;
+        qn = qn - bn;
+
+        if (shift) {
+            bary_small_rshift(rds, rds, rn, shift, 0);
+        }
+
+        BARY_TRUNC(qds, qn);
+        assert(qn <= bn);
+        big2str_karatsuba(b2s, qds, qn, xn+wn - (rn+qn), lower_power_level, lower_numdigits+taillen);
+        BARY_TRUNC(rds, rn);
+        big2str_karatsuba(b2s, rds, rn, xn+wn - rn, lower_power_level, taillen);
     }
-    else if (RBIGNUM_LEN(x) >= LONG_MAX/BITSPERDIG) {
-	rb_raise(rb_eRangeError, "bignum too big to convert into `string'");
+}
+
+static VALUE
+big2str_base_poweroftwo(VALUE x, int base)
+{
+    int word_numbits = ffs(base) - 1;
+    size_t numwords;
+    VALUE result;
+    char *ptr;
+    numwords = rb_absint_numwords(x, word_numbits, NULL);
+    if (BIGNUM_NEGATIVE_P(x)) {
+        if (LONG_MAX-1 < numwords)
+            rb_raise(rb_eArgError, "too big number");
+        result = rb_usascii_str_new(0, 1+numwords);
+        ptr = RSTRING_PTR(result);
+        *ptr++ = BIGNUM_POSITIVE_P(x) ? '+' : '-';
     }
     else {
-	bits = BITSPERDIG*RBIGNUM_LEN(x);
+        if (LONG_MAX < numwords)
+            rb_raise(rb_eArgError, "too big number");
+        result = rb_usascii_str_new(0, numwords);
+        ptr = RSTRING_PTR(result);
     }
+    rb_integer_pack(x, ptr, numwords, 1, CHAR_BIT-word_numbits,
+                    INTEGER_PACK_BIG_ENDIAN);
+    while (0 < numwords) {
+        *ptr = ruby_digitmap[*(unsigned char *)ptr];
+        ptr++;
+        numwords--;
+    }
+    return result;
+}
 
-    /* @shyouhei note: vvvvvvvvvvvvv this cast is suspicious.  But I believe it is OK, because if that cast loses data, this x value is too big, and should have raised RangeError. */
-    return (long)ceil(((double)bits)/log_2[base - 2]);
+VALUE
+rb_big2str_poweroftwo(VALUE x, int base)
+{
+    return big2str_base_poweroftwo(x, base);
 }
 
-static long
-big2str_orig(VALUE x, int base, char* ptr, long len, long hbase, int trim)
+static VALUE
+big2str_generic(VALUE x, int base)
 {
-    long i = RBIGNUM_LEN(x), j = len;
-    BDIGIT* ds = BDIGITS(x);
+    BDIGIT *xds;
+    size_t xn;
+    struct big2str_struct b2s_data;
+    int power_level;
+    VALUE power;
 
-    while (i && j > 0) {
-	long k = i;
-	BDIGIT_DBL num = 0;
+    xds = BDIGITS(x);
+    xn = BIGNUM_LEN(x);
+    BARY_TRUNC(xds, xn);
 
-	while (k--) {               /* x / hbase */
-	    num = BIGUP(num) + ds[k];
-	    ds[k] = (BDIGIT)(num / hbase);
-	    num %= hbase;
-	}
-	if (trim && ds[i-1] == 0) i--;
-	k = SIZEOF_BDIGITS;
-	while (k--) {
-	    ptr[--j] = ruby_digitmap[num % base];
-	    num /= base;
-	    if (j <= 0) break;
-	    if (trim && i == 0 && num == 0) break;
-	}
+    if (xn == 0) {
+	return rb_usascii_str_new2("0");
+    }
+
+    if (base < 2 || 36 < base)
+	rb_raise(rb_eArgError, "invalid radix %d", base);
+
+    if (xn >= LONG_MAX/BITSPERDIG) {
+        rb_raise(rb_eRangeError, "bignum too big to convert into `string'");
+    }
+
+    power_level = 0;
+    power = power_cache_get_power(base, power_level, NULL);
+    while (power_level < MAX_BASE36_POWER_TABLE_ENTRIES &&
+           (size_t)BIGNUM_LEN(power) <= (xn+1)/2) {
+        power_level++;
+        power = power_cache_get_power(base, power_level, NULL);
+    }
+    assert(power_level != MAX_BASE36_POWER_TABLE_ENTRIES);
+
+    if ((size_t)BIGNUM_LEN(power) <= xn) {
+        /*
+         * This increment guarantees x < power_cache_get_power(base, power_level)
+         * without invoking it actually.
+         * (power_cache_get_power(base, power_level) can be slow and not used
+         * in big2str_karatsuba.)
+         *
+         * Although it is possible that x < power_cache_get_power(base, power_level-1),
+         * it is no problem because big2str_karatsuba checks it and
+         * doesn't affect the result when b2s_data.ptr is NULL.
+         */
+        power_level++;
     }
-    if (trim) {
-	while (j < len && ptr[j] == '0') j++;
-	MEMMOVE(ptr, ptr + j, char, len - j);
-	len -= j;
+
+    b2s_data.negative = BIGNUM_NEGATIVE_P(x);
+    b2s_data.base = base;
+    b2s_data.hbase2 = maxpow_in_bdigit_dbl(base, &b2s_data.hbase2_numdigits);
+
+    b2s_data.result = Qnil;
+    b2s_data.ptr = NULL;
+
+    if (power_level == 0) {
+	big2str_2bdigits(&b2s_data, xds, xn, 0);
     }
-    return len;
+    else {
+        VALUE tmpw = 0;
+        BDIGIT *wds;
+        size_t wn;
+        wn = power_level * BIGDIVREM_EXTRA_WORDS + BIGNUM_LEN(power);
+        wds = ALLOCV_N(BDIGIT, tmpw, xn + wn);
+        MEMCPY(wds, xds, BDIGIT, xn);
+	big2str_karatsuba(&b2s_data, wds, xn, wn, power_level, 0);
+        if (tmpw)
+            ALLOCV_END(tmpw);
+    }
+    RB_GC_GUARD(x);
+
+    *b2s_data.ptr = '\0';
+    rb_str_resize(b2s_data.result, (long)(b2s_data.ptr - RSTRING_PTR(b2s_data.result)));
+
+    RB_GC_GUARD(x);
+    return b2s_data.result;
 }
 
-static long
-big2str_karatsuba(VALUE x, int base, char* ptr,
-		  long n1, long len, long hbase, int trim)
+VALUE
+rb_big2str_generic(VALUE x, int base)
 {
-    long lh, ll, m1;
-    VALUE b, q, r;
+    return big2str_generic(x, base);
+}
 
-    if (BIGZEROP(x)) {
-	if (trim) return 0;
-	else {
-	    memset(ptr, '0', len);
-	    return len;
-	}
-    }
+#ifdef USE_GMP
+static VALUE
+big2str_gmp(VALUE x, int base)
+{
+    const size_t nails = (sizeof(BDIGIT)-SIZEOF_BDIGIT)*CHAR_BIT;
+    mpz_t mx;
+    size_t size;
+    VALUE str;
+    BDIGIT *xds = BDIGITS(x);
+    size_t xn = BIGNUM_LEN(x);
 
-    if (n1 <= KARATSUBA_DIGITS) {
-	return big2str_orig(x, base, ptr, len, hbase, trim);
+    mpz_init(mx);
+    mpz_import(mx, xn, -1, sizeof(BDIGIT), 0, nails, xds);
+
+    size = mpz_sizeinbase(mx, base);
+
+    if (BIGNUM_NEGATIVE_P(x)) {
+        mpz_neg(mx, mx);
+        str = rb_usascii_str_new(0, size+1);
     }
+    else {
+        str = rb_usascii_str_new(0, size);
+    }
+    mpz_get_str(RSTRING_PTR(str), base, mx);
+    mpz_clear(mx);
 
-    b = power_cache_get_power(base, n1, &m1);
-    bigdivmod(x, b, &q, &r);
-    lh = big2str_karatsuba(q, base, ptr, (len - m1)/2,
-			   len - m1, hbase, trim);
-    rb_big_resize(q, 0);
-    ll = big2str_karatsuba(r, base, ptr + lh, m1/2,
-			   m1, hbase, !lh && trim);
-    rb_big_resize(r, 0);
+    if (RSTRING_PTR(str)[RSTRING_LEN(str)-1] == '\0') {
+        rb_str_set_len(str, RSTRING_LEN(str)-1);
+    }
 
-    return lh + ll;
+    RB_GC_GUARD(x);
+    return str;
 }
 
 VALUE
-rb_big2str0(VALUE x, int base, int trim)
+rb_big2str_gmp(VALUE x, int base)
+{
+    return big2str_gmp(x, base);
+}
+#endif
+
+static VALUE
+rb_big2str1(VALUE x, int base)
 {
-    int off;
-    VALUE ss, xx;
-    long n1, n2, len, hbase;
-    char* ptr;
+    BDIGIT *xds;
+    size_t xn;
 
     if (FIXNUM_P(x)) {
 	return rb_fix2str(x, base);
     }
-    if (BIGZEROP(x)) {
+
+    bigtrunc(x);
+    xds = BDIGITS(x);
+    xn = BIGNUM_LEN(x);
+    BARY_TRUNC(xds, xn);
+
+    if (xn == 0) {
 	return rb_usascii_str_new2("0");
     }
 
     if (base < 2 || 36 < base)
 	rb_raise(rb_eArgError, "invalid radix %d", base);
 
-    n2 = big2str_find_n1(x, base);
-    n1 = (n2 + 1) / 2;
-    ss = rb_usascii_str_new(0, n2 + 1); /* plus one for sign */
-    ptr = RSTRING_PTR(ss);
-    ptr[0] = RBIGNUM_SIGN(x) ? '+' : '-';
-
-    hbase = base*base;
-#if SIZEOF_BDIGITS > 2
-    hbase *= hbase;
-#endif
-    off = !(trim && RBIGNUM_SIGN(x)); /* erase plus sign if trim */
-    xx = rb_big_clone(x);
-    RBIGNUM_SET_SIGN(xx, 1);
-    if (n1 <= KARATSUBA_DIGITS) {
-	len = off + big2str_orig(xx, base, ptr + off, n2, hbase, trim);
+    if (xn >= LONG_MAX/BITSPERDIG) {
+        rb_raise(rb_eRangeError, "bignum too big to convert into `string'");
     }
-    else {
-	len = off + big2str_karatsuba(xx, base, ptr + off, n1,
-				      n2, hbase, trim);
+
+    if (POW2_P(base)) {
+        /* base == 2 || base == 4 || base == 8 || base == 16 || base == 32 */
+        return big2str_base_poweroftwo(x, base);
     }
-    rb_big_resize(xx, 0);
 
-    ptr[len] = '\0';
-    rb_str_resize(ss, len);
+#ifdef USE_GMP
+    if (GMP_BIG2STR_DIGITS < xn) {
+        return big2str_gmp(x, base);
+    }
+#endif
 
-    return ss;
+    return big2str_generic(x, base);
 }
 
 VALUE
 rb_big2str(VALUE x, int base)
 {
-    return rb_big2str0(x, base, 1);
+    return rb_big2str1(x, base);
 }
 
 /*
@@ -1190,43 +4953,37 @@ rb_big_to_s(int argc, VALUE *argv, VALUE x)
     return rb_big2str(x, base);
 }
 
-static VALUE
-big2ulong(VALUE x, const char *type, int check)
+static unsigned long
+big2ulong(VALUE x, const char *type)
 {
-    long len = RBIGNUM_LEN(x);
-    BDIGIT_DBL num;
+    size_t len = BIGNUM_LEN(x);
+    unsigned long num;
     BDIGIT *ds;
 
-    if (len > DIGSPERLONG) {
-	if (check)
-	    rb_raise(rb_eRangeError, "bignum too big to convert into `%s'", type);
-	len = DIGSPERLONG;
+    if (len == 0)
+        return 0;
+    if (BIGSIZE(x) > sizeof(long)) {
+        rb_raise(rb_eRangeError, "bignum too big to convert into `%s'", type);
     }
     ds = BDIGITS(x);
+#if SIZEOF_LONG <= SIZEOF_BDIGIT
+    num = (unsigned long)ds[0];
+#else
     num = 0;
     while (len--) {
-	num = BIGUP(num);
-	num += ds[len];
-    }
-    return (VALUE)num;
-}
-
-VALUE
-rb_big2ulong_pack(VALUE x)
-{
-    VALUE num = big2ulong(x, "unsigned long", FALSE);
-    if (!RBIGNUM_SIGN(x)) {
-	return (VALUE)(-(SIGNED_VALUE)num);
+	num <<= BITSPERDIG;
+	num += (unsigned long)ds[len]; /* overflow is already checked */
     }
+#endif
     return num;
 }
 
-VALUE
+unsigned long
 rb_big2ulong(VALUE x)
 {
-    VALUE num = big2ulong(x, "unsigned long", TRUE);
+    unsigned long num = big2ulong(x, "unsigned long");
 
-    if (RBIGNUM_POSITIVE_P(x)) {
+    if (BIGNUM_POSITIVE_P(x)) {
         return num;
     }
     else {
@@ -1234,28 +4991,26 @@ rb_big2ulong(VALUE x)
             return -(long)num;
         if (num == 1+(unsigned long)(-(LONG_MIN+1)))
             return LONG_MIN;
-        rb_raise(rb_eRangeError, "bignum out of range of unsigned long");
     }
-    return num;
+    rb_raise(rb_eRangeError, "bignum out of range of unsigned long");
 }
 
-SIGNED_VALUE
+long
 rb_big2long(VALUE x)
 {
-    VALUE num = big2ulong(x, "long", TRUE);
+    unsigned long num = big2ulong(x, "long");
 
-    if (RBIGNUM_POSITIVE_P(x)) {
-        if (LONG_MAX < num)
-            rb_raise(rb_eRangeError, "bignum too big to convert into `long'");
-        return num;
+    if (BIGNUM_POSITIVE_P(x)) {
+        if (num <= LONG_MAX)
+            return num;
     }
     else {
         if (num <= LONG_MAX)
             return -(long)num;
         if (num == 1+(unsigned long)(-(LONG_MIN+1)))
             return LONG_MIN;
-        rb_raise(rb_eRangeError, "bignum too big to convert into `long'");
     }
+    rb_raise(rb_eRangeError, "bignum too big to convert into `long'");
 }
 
 #if HAVE_LONG_LONG
@@ -1263,18 +5018,23 @@ rb_big2long(VALUE x)
 static unsigned LONG_LONG
 big2ull(VALUE x, const char *type)
 {
-    long len = RBIGNUM_LEN(x);
-    BDIGIT_DBL num;
-    BDIGIT *ds;
+    size_t len = BIGNUM_LEN(x);
+    unsigned LONG_LONG num;
+    BDIGIT *ds = BDIGITS(x);
 
-    if (len > SIZEOF_LONG_LONG/SIZEOF_BDIGITS)
+    if (len == 0)
+        return 0;
+    if (BIGSIZE(x) > SIZEOF_LONG_LONG)
 	rb_raise(rb_eRangeError, "bignum too big to convert into `%s'", type);
-    ds = BDIGITS(x);
+#if SIZEOF_LONG_LONG <= SIZEOF_BDIGIT
+    num = (unsigned LONG_LONG)ds[0];
+#else
     num = 0;
     while (len--) {
 	num = BIGUP(num);
 	num += ds[len];
     }
+#endif
     return num;
 }
 
@@ -1283,7 +5043,7 @@ rb_big2ull(VALUE x)
 {
     unsigned LONG_LONG num = big2ull(x, "unsigned long long");
 
-    if (RBIGNUM_POSITIVE_P(x)) {
+    if (BIGNUM_POSITIVE_P(x)) {
         return num;
     }
     else {
@@ -1291,9 +5051,8 @@ rb_big2ull(VALUE x)
             return -(LONG_LONG)num;
         if (num == 1+(unsigned LONG_LONG)(-(LLONG_MIN+1)))
             return LLONG_MIN;
-        rb_raise(rb_eRangeError, "bignum out of range of unsigned long long");
     }
-    return num;
+    rb_raise(rb_eRangeError, "bignum out of range of unsigned long long");
 }
 
 LONG_LONG
@@ -1301,18 +5060,17 @@ rb_big2ll(VALUE x)
 {
     unsigned LONG_LONG num = big2ull(x, "long long");
 
-    if (RBIGNUM_POSITIVE_P(x)) {
-        if (LLONG_MAX < num)
-            rb_raise(rb_eRangeError, "bignum too big to convert into `long long'");
-        return num;
+    if (BIGNUM_POSITIVE_P(x)) {
+        if (num <= LLONG_MAX)
+            return num;
     }
     else {
         if (num <= LLONG_MAX)
             return -(LONG_LONG)num;
         if (num == 1+(unsigned LONG_LONG)(-(LLONG_MIN+1)))
             return LLONG_MIN;
-        rb_raise(rb_eRangeError, "bignum too big to convert into `long long'");
     }
+    rb_raise(rb_eRangeError, "bignum too big to convert into `long long'");
 }
 
 #endif  /* HAVE_LONG_LONG */
@@ -1333,7 +5091,7 @@ dbl2big(double d)
 	rb_raise(rb_eFloatDomainError, "NaN");
     }
 
-    while (!POSFIXABLE(u) || 0 != (long)u) {
+    while (1.0 <= u) {
 	u /= (double)(BIGRAD);
 	i++;
     }
@@ -1355,32 +5113,11 @@ rb_dbl2big(double d)
     return bignorm(dbl2big(d));
 }
 
-static int
-nlz(BDIGIT x)
-{
-    BDIGIT y;
-    int n = BITSPERDIG;
-#if BITSPERDIG > 64
-    y = x >> 64; if (y) {n -= 64; x = y;}
-#endif
-#if BITSPERDIG > 32
-    y = x >> 32; if (y) {n -= 32; x = y;}
-#endif
-#if BITSPERDIG > 16
-    y = x >> 16; if (y) {n -= 16; x = y;}
-#endif
-    y = x >>  8; if (y) {n -=  8; x = y;}
-    y = x >>  4; if (y) {n -=  4; x = y;}
-    y = x >>  2; if (y) {n -=  2; x = y;}
-    y = x >>  1; if (y) {return n - 2;}
-    return n - x;
-}
-
 static double
 big2dbl(VALUE x)
 {
     double d = 0.0;
-    long i = (bigtrunc(x), RBIGNUM_LEN(x)), lo = 0, bits;
+    long i = (bigtrunc(x), BIGNUM_LEN(x)), lo = 0, bits;
     BDIGIT *ds = BDIGITS(x), dl;
 
     if (i) {
@@ -1397,16 +5134,17 @@ big2dbl(VALUE x)
 		d = ds[i] + BIGRAD*d;
 	    }
 	    dl = ds[i];
-	    if (bits && (dl & (1UL << (bits %= BITSPERDIG)))) {
-		int carry = dl & ~(~(BDIGIT)0 << bits);
+	    if (bits && (dl & ((BDIGIT)1 << (bits %= BITSPERDIG)))) {
+		int carry = (dl & ~(BDIGMAX << bits)) != 0;
 		if (!carry) {
 		    while (i-- > 0) {
-			if ((carry = ds[i]) != 0) break;
+			carry = ds[i] != 0;
+			if (carry) break;
 		    }
 		}
 		if (carry) {
-		    dl &= (BDIGIT)~0 << bits;
-		    dl += (BDIGIT)1 << bits;
+		    dl &= BDIGMAX << bits;
+		    dl = BIGLO(dl + ((BDIGIT)1 << bits));
 		    if (!dl) d += 1;
 		}
 	    }
@@ -1421,7 +5159,7 @@ big2dbl(VALUE x)
 	    }
 	}
     }
-    if (!RBIGNUM_SIGN(x)) d = -d;
+    if (!BIGNUM_SIGN(x)) d = -d;
     return d;
 }
 
@@ -1478,16 +5216,16 @@ rb_integer_float_cmp(VALUE x, VALUE y)
             return INT2FIX(1);
         return INT2FIX(0);
 #else
-        long xl, yl;
+        long xn, yn;
         if (yi < FIXNUM_MIN)
             return INT2FIX(1);
         if (FIXNUM_MAX+1 <= yi)
             return INT2FIX(-1);
-        xl = FIX2LONG(x);
-        yl = (long)yi;
-        if (xl < yl)
+        xn = FIX2LONG(x);
+        yn = (long)yi;
+        if (xn < yn)
             return INT2FIX(-1);
-        if (xl > yl)
+        if (xn > yn)
             return INT2FIX(1);
         if (yf < 0.0)
             return INT2FIX(1);
@@ -1523,12 +5261,12 @@ rb_integer_float_eq(VALUE x, VALUE y)
             return Qfalse;
         return Qtrue;
 #else
-        long xl, yl;
+        long xn, yn;
         if (yi < LONG_MIN || LONG_MAX < yi)
             return Qfalse;
-        xl = FIX2LONG(x);
-        yl = (long)yi;
-        if (xl != yl)
+        xn = FIX2LONG(x);
+        yn = (long)yi;
+        if (xn != yn)
             return Qfalse;
         return Qtrue;
 #endif
@@ -1552,39 +5290,37 @@ rb_integer_float_eq(VALUE x, VALUE y)
 VALUE
 rb_big_cmp(VALUE x, VALUE y)
 {
-    long xlen = RBIGNUM_LEN(x);
-    BDIGIT *xds, *yds;
+    int cmp;
 
-    switch (TYPE(y)) {
-      case T_FIXNUM:
-	y = rb_int2big(FIX2LONG(y));
-	break;
-
-      case T_BIGNUM:
-	break;
-
-      case T_FLOAT:
+    if (FIXNUM_P(y)) {
+        x = bignorm(x);
+        if (FIXNUM_P(x)) {
+            if (FIX2LONG(x) > FIX2LONG(y)) return INT2FIX(1);
+            if (FIX2LONG(x) < FIX2LONG(y)) return INT2FIX(-1);
+            return INT2FIX(0);
+        }
+        else {
+            if (BIGNUM_NEGATIVE_P(x)) return INT2FIX(-1);
+            return INT2FIX(1);
+        }
+    }
+    else if (RB_BIGNUM_TYPE_P(y)) {
+    }
+    else if (RB_FLOAT_TYPE_P(y)) {
         return rb_integer_float_cmp(x, y);
-
-      default:
+    }
+    else {
 	return rb_num_coerce_cmp(x, y, rb_intern("<=>"));
     }
 
-    if (RBIGNUM_SIGN(x) > RBIGNUM_SIGN(y)) return INT2FIX(1);
-    if (RBIGNUM_SIGN(x) < RBIGNUM_SIGN(y)) return INT2FIX(-1);
-    if (xlen < RBIGNUM_LEN(y))
-	return (RBIGNUM_SIGN(x)) ? INT2FIX(-1) : INT2FIX(1);
-    if (xlen > RBIGNUM_LEN(y))
-	return (RBIGNUM_SIGN(x)) ? INT2FIX(1) : INT2FIX(-1);
+    if (BIGNUM_SIGN(x) > BIGNUM_SIGN(y)) return INT2FIX(1);
+    if (BIGNUM_SIGN(x) < BIGNUM_SIGN(y)) return INT2FIX(-1);
 
-    xds = BDIGITS(x);
-    yds = BDIGITS(y);
-
-    while (xlen-- && (xds[xlen]==yds[xlen]));
-    if (-1 == xlen) return INT2FIX(0);
-    return (xds[xlen] > yds[xlen]) ?
-	(RBIGNUM_SIGN(x) ? INT2FIX(1) : INT2FIX(-1)) :
-	    (RBIGNUM_SIGN(x) ? INT2FIX(-1) : INT2FIX(1));
+    cmp = bary_cmp(BDIGITS(x), BIGNUM_LEN(x), BDIGITS(y), BIGNUM_LEN(y));
+    if (BIGNUM_SIGN(x))
+        return INT2FIX(cmp);
+    else
+        return INT2FIX(-cmp);
 }
 
 enum big_op_t {
@@ -1600,27 +5336,21 @@ big_op(VALUE x, VALUE y, enum big_op_t op)
     VALUE rel;
     int n;
 
-    switch (TYPE(y)) {
-      case T_FIXNUM:
-      case T_BIGNUM:
+    if (FIXNUM_P(y) || RB_BIGNUM_TYPE_P(y)) {
 	rel = rb_big_cmp(x, y);
-	break;
-
-      case T_FLOAT:
+    }
+    else if (RB_FLOAT_TYPE_P(y)) {
         rel = rb_integer_float_cmp(x, y);
-        break;
-
-      default:
-	{
-	    ID id = 0;
-	    switch (op) {
-		case big_op_gt: id = '>'; break;
-		case big_op_ge: id = rb_intern(">="); break;
-		case big_op_lt: id = '<'; break;
-		case big_op_le: id = rb_intern("<="); break;
-	    }
-	    return rb_num_coerce_relop(x, y, id);
+    }
+    else {
+	ID id = 0;
+	switch (op) {
+	  case big_op_gt: id = '>'; break;
+	  case big_op_ge: id = rb_intern(">="); break;
+	  case big_op_lt: id = '<'; break;
+	  case big_op_le: id = rb_intern("<="); break;
 	}
+	return rb_num_coerce_relop(x, y, id);
     }
 
     if (NIL_P(rel)) return Qfalse;
@@ -1705,20 +5435,21 @@ big_le(VALUE x, VALUE y)
 VALUE
 rb_big_eq(VALUE x, VALUE y)
 {
-    switch (TYPE(y)) {
-      case T_FIXNUM:
+    if (FIXNUM_P(y)) {
+	if (bignorm(x) == y) return Qtrue;
 	y = rb_int2big(FIX2LONG(y));
-	break;
-      case T_BIGNUM:
-	break;
-      case T_FLOAT:
+    }
+    else if (RB_BIGNUM_TYPE_P(y)) {
+    }
+    else if (RB_FLOAT_TYPE_P(y)) {
         return rb_integer_float_eq(x, y);
-      default:
+    }
+    else {
 	return rb_equal(y, x);
     }
-    if (RBIGNUM_SIGN(x) != RBIGNUM_SIGN(y)) return Qfalse;
-    if (RBIGNUM_LEN(x) != RBIGNUM_LEN(y)) return Qfalse;
-    if (MEMCMP(BDIGITS(x),BDIGITS(y),BDIGIT,RBIGNUM_LEN(y)) != 0) return Qfalse;
+    if (BIGNUM_SIGN(x) != BIGNUM_SIGN(y)) return Qfalse;
+    if (BIGNUM_LEN(x) != BIGNUM_LEN(y)) return Qfalse;
+    if (MEMCMP(BDIGITS(x),BDIGITS(y),BDIGIT,BIGNUM_LEN(y)) != 0) return Qfalse;
     return Qtrue;
 }
 
@@ -1736,10 +5467,10 @@ rb_big_eq(VALUE x, VALUE y)
 VALUE
 rb_big_eql(VALUE x, VALUE y)
 {
-    if (!RB_TYPE_P(y, T_BIGNUM)) return Qfalse;
-    if (RBIGNUM_SIGN(x) != RBIGNUM_SIGN(y)) return Qfalse;
-    if (RBIGNUM_LEN(x) != RBIGNUM_LEN(y)) return Qfalse;
-    if (MEMCMP(BDIGITS(x),BDIGITS(y),BDIGIT,RBIGNUM_LEN(y)) != 0) return Qfalse;
+    if (!RB_BIGNUM_TYPE_P(y)) return Qfalse;
+    if (BIGNUM_SIGN(x) != BIGNUM_SIGN(y)) return Qfalse;
+    if (BIGNUM_LEN(x) != BIGNUM_LEN(y)) return Qfalse;
+    if (MEMCMP(BDIGITS(x),BDIGITS(y),BDIGIT,BIGNUM_LEN(y)) != 0) return Qfalse;
     return Qtrue;
 }
 
@@ -1755,7 +5486,7 @@ rb_big_uminus(VALUE x)
 {
     VALUE z = rb_big_clone(x);
 
-    RBIGNUM_SET_SIGN(z, !RBIGNUM_SIGN(x));
+    BIGNUM_SET_SIGN(z, !BIGNUM_SIGN(x));
 
     return bignorm(z);
 }
@@ -1776,78 +5507,49 @@ static VALUE
 rb_big_neg(VALUE x)
 {
     VALUE z = rb_big_clone(x);
-    BDIGIT *ds;
-    long i;
+    BDIGIT *ds = BDIGITS(z);
+    long n = BIGNUM_LEN(z);
 
-    if (!RBIGNUM_SIGN(x)) get2comp(z);
-    ds = BDIGITS(z);
-    i = RBIGNUM_LEN(x);
-    if (!i) return INT2FIX(~(SIGNED_VALUE)0);
-    while (i--) {
-	ds[i] = ~ds[i];
-    }
-    RBIGNUM_SET_SIGN(z, !RBIGNUM_SIGN(z));
-    if (RBIGNUM_SIGN(x)) get2comp(z);
-
-    return bignorm(z);
-}
-
-static void
-bigsub_core(BDIGIT *xds, long xn, BDIGIT *yds, long yn, BDIGIT *zds, long zn)
-{
-    BDIGIT_DBL_SIGNED num;
-    long i;
+    if (!n) return INT2FIX(-1);
 
-    for (i = 0, num = 0; i < yn; i++) {
-	num += (BDIGIT_DBL_SIGNED)xds[i] - yds[i];
-	zds[i] = BIGLO(num);
-	num = BIGDN(num);
-    }
-    while (num && i < xn) {
-	num += xds[i];
-	zds[i++] = BIGLO(num);
-	num = BIGDN(num);
-    }
-    while (i < xn) {
-	zds[i] = xds[i];
-	i++;
+    if (BIGNUM_POSITIVE_P(z)) {
+        if (bary_add_one(ds, n)) {
+            big_extend_carry(z);
+        }
+        BIGNUM_SET_NEGATIVE_SIGN(z);
     }
-    assert(i <= zn);
-    while (i < zn) {
-	zds[i++] = 0;
+    else {
+        bary_neg(ds, n);
+        if (bary_add_one(ds, n))
+            return INT2FIX(-1);
+        bary_neg(ds, n);
+        BIGNUM_SET_POSITIVE_SIGN(z);
     }
+
+    return bignorm(z);
 }
 
 static VALUE
 bigsub(VALUE x, VALUE y)
 {
-    VALUE z = 0;
-    long i = RBIGNUM_LEN(x);
-    BDIGIT *xds, *yds;
+    VALUE z;
+    BDIGIT *xds, *yds, *zds;
+    long xn, yn, zn;
 
-    /* if x is smaller than y, swap */
-    if (RBIGNUM_LEN(x) < RBIGNUM_LEN(y)) {
-	z = x; x = y; y = z;	/* swap x y */
-    }
-    else if (RBIGNUM_LEN(x) == RBIGNUM_LEN(y)) {
-	xds = BDIGITS(x);
-	yds = BDIGITS(y);
-	while (i > 0) {
-	    i--;
-	    if (xds[i] > yds[i]) {
-		break;
-	    }
-	    if (xds[i] < yds[i]) {
-		z = x; x = y; y = z;	/* swap x y */
-		break;
-	    }
-	}
-    }
+    xn = BIGNUM_LEN(x);
+    yn = BIGNUM_LEN(y);
+    zn = xn < yn ? yn : xn;
 
-    z = bignew(RBIGNUM_LEN(x), z==0);
-    bigsub_core(BDIGITS(x), RBIGNUM_LEN(x),
-		BDIGITS(y), RBIGNUM_LEN(y),
-		BDIGITS(z), RBIGNUM_LEN(z));
+    z = bignew(zn, 1);
+
+    xds = BDIGITS(x);
+    yds = BDIGITS(y);
+    zds = BDIGITS(z);
+
+    if (bary_sub(zds, zn, xds, xn, yds, yn)) {
+        bary_2comp(zds, zn);
+        BIGNUM_SET_NEGATIVE_SIGN(z);
+    }
 
     return z;
 }
@@ -1859,21 +5561,30 @@ bigsub_int(VALUE x, long y0)
 {
     VALUE z;
     BDIGIT *xds, *zds;
-    long xn;
+    long xn, zn;
     BDIGIT_DBL_SIGNED num;
     long i, y;
 
     y = y0;
     xds = BDIGITS(x);
-    xn = RBIGNUM_LEN(x);
+    xn = BIGNUM_LEN(x);
 
-    z = bignew(xn, RBIGNUM_SIGN(x));
+    if (xn == 0)
+        return LONG2NUM(-y0);
+
+    zn = xn;
+#if SIZEOF_BDIGIT < SIZEOF_LONG
+    if (zn < bdigit_roomof(SIZEOF_LONG))
+        zn = bdigit_roomof(SIZEOF_LONG);
+#endif
+    z = bignew(zn, BIGNUM_SIGN(x));
     zds = BDIGITS(z);
 
-#if SIZEOF_BDIGITS == SIZEOF_LONG
+#if SIZEOF_BDIGIT >= SIZEOF_LONG
+    assert(xn == zn);
     num = (BDIGIT_DBL_SIGNED)xds[0] - y;
     if (xn == 1 && num < 0) {
-	RBIGNUM_SET_SIGN(z, !RBIGNUM_SIGN(x));
+	BIGNUM_SET_SIGN(z, !BIGNUM_SIGN(x));
 	zds[0] = (BDIGIT)-num;
 	RB_GC_GUARD(x);
 	return bignorm(z);
@@ -1881,26 +5592,62 @@ bigsub_int(VALUE x, long y0)
     zds[0] = BIGLO(num);
     num = BIGDN(num);
     i = 1;
+    if (i < xn)
+        goto y_is_zero_x;
+    goto finish;
 #else
     num = 0;
-    for (i=0; i<(int)(sizeof(y)/sizeof(BDIGIT)); i++) {
+    for (i=0; i < xn; i++) {
+        if (y == 0) goto y_is_zero_x;
 	num += (BDIGIT_DBL_SIGNED)xds[i] - BIGLO(y);
 	zds[i] = BIGLO(num);
 	num = BIGDN(num);
 	y = BIGDN(y);
     }
+    for (; i < zn; i++) {
+        if (y == 0) goto y_is_zero_z;
+        num -= BIGLO(y);
+        zds[i] = BIGLO(num);
+        num = BIGDN(num);
+        y = BIGDN(y);
+    }
+    goto finish;
 #endif
-    while (num && i < xn) {
+
+    for (; i < xn; i++) {
+      y_is_zero_x:
+        if (num == 0) goto num_is_zero_x;
 	num += xds[i];
-	zds[i++] = BIGLO(num);
+	zds[i] = BIGLO(num);
 	num = BIGDN(num);
     }
-    while (i < xn) {
+#if SIZEOF_BDIGIT < SIZEOF_LONG
+    for (; i < zn; i++) {
+      y_is_zero_z:
+        if (num == 0) goto num_is_zero_z;
+        zds[i] = BIGLO(num);
+        num = BIGDN(num);
+    }
+#endif
+    goto finish;
+
+    for (; i < xn; i++) {
+      num_is_zero_x:
 	zds[i] = xds[i];
-	i++;
     }
+#if SIZEOF_BDIGIT < SIZEOF_LONG
+    for (; i < zn; i++) {
+      num_is_zero_z:
+        zds[i] = 0;
+    }
+#endif
+    goto finish;
+
+  finish:
+    assert(num == 0 || num == -1);
     if (num < 0) {
-	z = bigsub(x, rb_int2big(y0));
+        get2comp(z);
+	BIGNUM_SET_SIGN(z, !BIGNUM_SIGN(x));
     }
     RB_GC_GUARD(x);
     return bignorm(z);
@@ -1916,106 +5663,102 @@ bigadd_int(VALUE x, long y)
     long i;
 
     xds = BDIGITS(x);
-    xn = RBIGNUM_LEN(x);
+    xn = BIGNUM_LEN(x);
 
-    if (xn < 2) {
-	zn = 3;
-    }
-    else {
-	zn = xn + 1;
-    }
-    z = bignew(zn, RBIGNUM_SIGN(x));
+    if (xn == 0)
+        return LONG2NUM(y);
+
+    zn = xn;
+#if SIZEOF_BDIGIT < SIZEOF_LONG
+    if (zn < bdigit_roomof(SIZEOF_LONG))
+        zn = bdigit_roomof(SIZEOF_LONG);
+#endif
+    zn++;
+
+    z = bignew(zn, BIGNUM_SIGN(x));
     zds = BDIGITS(z);
 
-#if SIZEOF_BDIGITS == SIZEOF_LONG
+#if SIZEOF_BDIGIT >= SIZEOF_LONG
     num = (BDIGIT_DBL)xds[0] + y;
     zds[0] = BIGLO(num);
     num = BIGDN(num);
     i = 1;
+    if (i < xn)
+        goto y_is_zero_x;
+    goto y_is_zero_z;
 #else
     num = 0;
-    for (i=0; i<(int)(sizeof(y)/sizeof(BDIGIT)); i++) {
+    for (i=0; i < xn; i++) {
+        if (y == 0) goto y_is_zero_x;
 	num += (BDIGIT_DBL)xds[i] + BIGLO(y);
 	zds[i] = BIGLO(num);
 	num = BIGDN(num);
 	y = BIGDN(y);
     }
-#endif
-    while (num && i < xn) {
-	num += xds[i];
-	zds[i++] = BIGLO(num);
+    for (; i < zn; i++) {
+        if (y == 0) goto y_is_zero_z;
+	num += BIGLO(y);
+	zds[i] = BIGLO(num);
 	num = BIGDN(num);
+	y = BIGDN(y);
     }
-    if (num) zds[i++] = (BDIGIT)num;
-    else while (i < xn) {
-	zds[i] = xds[i];
-	i++;
-    }
-    assert(i <= zn);
-    while (i < zn) {
-	zds[i++] = 0;
-    }
-    RB_GC_GUARD(x);
-    return bignorm(z);
-}
-
-static void
-bigadd_core(BDIGIT *xds, long xn, BDIGIT *yds, long yn, BDIGIT *zds, long zn)
-{
-    BDIGIT_DBL num = 0;
-    long i;
+    goto finish;
 
-    if (xn > yn) {
-	BDIGIT *tds;
-	tds = xds; xds = yds; yds = tds;
-	i = xn; xn = yn; yn = i;
-    }
+#endif
 
-    i = 0;
-    while (i < xn) {
-	num += (BDIGIT_DBL)xds[i] + yds[i];
-	zds[i++] = BIGLO(num);
+    for (;i < xn; i++) {
+      y_is_zero_x:
+        if (num == 0) goto num_is_zero_x;
+	num += (BDIGIT_DBL)xds[i];
+	zds[i] = BIGLO(num);
 	num = BIGDN(num);
     }
-    while (num && i < yn) {
-	num += yds[i];
-	zds[i++] = BIGLO(num);
+    for (; i < zn; i++) {
+      y_is_zero_z:
+        if (num == 0) goto num_is_zero_z;
+	zds[i] = BIGLO(num);
 	num = BIGDN(num);
     }
-    while (i < yn) {
-	zds[i] = yds[i];
-	i++;
+    goto finish;
+
+    for (;i < xn; i++) {
+      num_is_zero_x:
+	zds[i] = xds[i];
     }
-    if (num) zds[i++] = (BDIGIT)num;
-    assert(i <= zn);
-    while (i < zn) {
-	zds[i++] = 0;
+    for (; i < zn; i++) {
+      num_is_zero_z:
+	zds[i] = 0;
     }
+    goto finish;
+
+  finish:
+    RB_GC_GUARD(x);
+    return bignorm(z);
 }
 
 static VALUE
 bigadd(VALUE x, VALUE y, int sign)
 {
     VALUE z;
-    long len;
+    size_t len;
 
-    sign = (sign == RBIGNUM_SIGN(y));
-    if (RBIGNUM_SIGN(x) != sign) {
+    sign = (sign == BIGNUM_SIGN(y));
+    if (BIGNUM_SIGN(x) != sign) {
 	if (sign) return bigsub(y, x);
 	return bigsub(x, y);
     }
 
-    if (RBIGNUM_LEN(x) > RBIGNUM_LEN(y)) {
-	len = RBIGNUM_LEN(x) + 1;
+    if (BIGNUM_LEN(x) > BIGNUM_LEN(y)) {
+	len = BIGNUM_LEN(x) + 1;
     }
     else {
-	len = RBIGNUM_LEN(y) + 1;
+	len = BIGNUM_LEN(y) + 1;
     }
     z = bignew(len, sign);
 
-    bigadd_core(BDIGITS(x), RBIGNUM_LEN(x),
-		BDIGITS(y), RBIGNUM_LEN(y),
-		BDIGITS(z), RBIGNUM_LEN(z));
+    bary_add(BDIGITS(z), BIGNUM_LEN(z),
+             BDIGITS(x), BIGNUM_LEN(x),
+             BDIGITS(y), BIGNUM_LEN(y));
 
     return z;
 }
@@ -2032,10 +5775,9 @@ rb_big_plus(VALUE x, VALUE y)
 {
     long n;
 
-    switch (TYPE(y)) {
-      case T_FIXNUM:
+    if (FIXNUM_P(y)) {
 	n = FIX2LONG(y);
-	if ((n > 0) != RBIGNUM_SIGN(x)) {
+	if ((n > 0) != BIGNUM_SIGN(x)) {
 	    if (n < 0) {
 		n = -n;
 	    }
@@ -2045,14 +5787,14 @@ rb_big_plus(VALUE x, VALUE y)
 	    n = -n;
 	}
 	return bigadd_int(x, n);
-
-      case T_BIGNUM:
+    }
+    else if (RB_BIGNUM_TYPE_P(y)) {
 	return bignorm(bigadd(x, y, 1));
-
-      case T_FLOAT:
+    }
+    else if (RB_FLOAT_TYPE_P(y)) {
 	return DBL2NUM(rb_big2dbl(x) + RFLOAT_VALUE(y));
-
-      default:
+    }
+    else {
 	return rb_num_coerce_bin(x, y, '+');
     }
 }
@@ -2069,10 +5811,9 @@ rb_big_minus(VALUE x, VALUE y)
 {
     long n;
 
-    switch (TYPE(y)) {
-      case T_FIXNUM:
+    if (FIXNUM_P(y)) {
 	n = FIX2LONG(y);
-	if ((n > 0) != RBIGNUM_SIGN(x)) {
+	if ((n > 0) != BIGNUM_SIGN(x)) {
 	    if (n < 0) {
 		n = -n;
 	    }
@@ -2082,573 +5823,76 @@ rb_big_minus(VALUE x, VALUE y)
 	    n = -n;
 	}
 	return bigsub_int(x, n);
-
-      case T_BIGNUM:
-	return bignorm(bigadd(x, y, 0));
-
-      case T_FLOAT:
-	return DBL2NUM(rb_big2dbl(x) - RFLOAT_VALUE(y));
-
-      default:
-	return rb_num_coerce_bin(x, y, '-');
     }
-}
-
-static long
-big_real_len(VALUE x)
-{
-    long i = RBIGNUM_LEN(x);
-    BDIGIT *xds = BDIGITS(x);
-    while (--i && !xds[i]);
-    return i + 1;
-}
-
-static VALUE
-bigmul1_single(VALUE x, VALUE y)
-{
-    BDIGIT_DBL n;
-    VALUE z = bignew(2, RBIGNUM_SIGN(x)==RBIGNUM_SIGN(y));
-    BDIGIT *xds, *yds, *zds;
-
-    xds = BDIGITS(x);
-    yds = BDIGITS(y);
-    zds = BDIGITS(z);
-
-    n = (BDIGIT_DBL)xds[0] * yds[0];
-    zds[0] = BIGLO(n);
-    zds[1] = (BDIGIT)BIGDN(n);
-
-    return z;
-}
-
-static VALUE
-bigmul1_normal(VALUE x, VALUE y)
-{
-    long xl = RBIGNUM_LEN(x), yl = RBIGNUM_LEN(y), i, j = xl + yl + 1;
-    BDIGIT_DBL n = 0;
-    VALUE z = bignew(j, RBIGNUM_SIGN(x)==RBIGNUM_SIGN(y));
-    BDIGIT *xds, *yds, *zds;
-
-    xds = BDIGITS(x);
-    yds = BDIGITS(y);
-    zds = BDIGITS(z);
-    while (j--) zds[j] = 0;
-    for (i = 0; i < xl; i++) {
-	BDIGIT_DBL dd;
-	dd = xds[i];
-	if (dd == 0) continue;
-	n = 0;
-	for (j = 0; j < yl; j++) {
-	    BDIGIT_DBL ee = n + (BDIGIT_DBL)dd * yds[j];
-	    n = zds[i + j] + ee;
-	    if (ee) zds[i + j] = BIGLO(n);
-	    n = BIGDN(n);
-	}
-	if (n) {
-	    zds[i + j] = (BDIGIT)n;
-	}
-    }
-    rb_thread_check_ints();
-    return z;
-}
-
-static VALUE bigmul0(VALUE x, VALUE y);
-
-/* balancing multiplication by slicing larger argument */
-static VALUE
-bigmul1_balance(VALUE x, VALUE y)
-{
-    VALUE z, t1, t2;
-    long i, xn, yn, r, n;
-    BDIGIT *yds, *zds, *t1ds;
-
-    xn = RBIGNUM_LEN(x);
-    yn = RBIGNUM_LEN(y);
-    assert(2 * xn <= yn || 3 * xn <= 2*(yn+2));
-
-    z = bignew(xn + yn, RBIGNUM_SIGN(x)==RBIGNUM_SIGN(y));
-    t1 = bignew(xn, 1);
-
-    yds = BDIGITS(y);
-    zds = BDIGITS(z);
-    t1ds = BDIGITS(t1);
-
-    for (i = 0; i < xn + yn; i++) zds[i] = 0;
-
-    n = 0;
-    while (yn > 0) {
-	r = xn > yn ? yn : xn;
-	MEMCPY(t1ds, yds + n, BDIGIT, r);
-	RBIGNUM_SET_LEN(t1, r);
-	t2 = bigmul0(x, t1);
-	bigadd_core(zds + n, RBIGNUM_LEN(z) - n,
-		    BDIGITS(t2), big_real_len(t2),
-		    zds + n, RBIGNUM_LEN(z) - n);
-	yn -= r;
-	n += r;
-    }
-
-    return z;
-}
-
-/* split a bignum into high and low bignums */
-static void
-big_split(VALUE v, long n, volatile VALUE *ph, volatile VALUE *pl)
-{
-    long hn = 0, ln = RBIGNUM_LEN(v);
-    VALUE h, l;
-    BDIGIT *vds = BDIGITS(v);
-
-    if (ln > n) {
-	hn = ln - n;
-	ln = n;
+    else if (RB_BIGNUM_TYPE_P(y)) {
+	return bignorm(bigadd(x, y, 0));
     }
-
-    if (!hn) {
-	h = rb_uint2big(0);
+    else if (RB_FLOAT_TYPE_P(y)) {
+	return DBL2NUM(rb_big2dbl(x) - RFLOAT_VALUE(y));
     }
     else {
-	while (--hn && !vds[hn + ln]);
-	h = bignew(hn += 2, 1);
-	MEMCPY(BDIGITS(h), vds + ln, BDIGIT, hn - 1);
-	BDIGITS(h)[hn - 1] = 0; /* margin for carry */
+	return rb_num_coerce_bin(x, y, '-');
     }
-
-    while (--ln && !vds[ln]);
-    l = bignew(ln += 2, 1);
-    MEMCPY(BDIGITS(l), vds, BDIGIT, ln - 1);
-    BDIGITS(l)[ln - 1] = 0; /* margin for carry */
-
-    *pl = l;
-    *ph = h;
 }
 
-/* multiplication by karatsuba method */
 static VALUE
-bigmul1_karatsuba(VALUE x, VALUE y)
+bigsq(VALUE x)
 {
-    long i, n, xn, yn, t1n, t2n;
-    VALUE xh, xl, yh, yl, z, t1, t2, t3;
-    BDIGIT *zds;
+    long xn, zn;
+    VALUE z;
+    BDIGIT *xds, *zds;
 
-    xn = RBIGNUM_LEN(x);
-    yn = RBIGNUM_LEN(y);
-    n = yn / 2;
-    big_split(x, n, &xh, &xl);
-    if (x == y) {
-	yh = xh; yl = xl;
-    }
-    else big_split(y, n, &yh, &yl);
+    xn = BIGNUM_LEN(x);
+    zn = 2 * xn;
 
-    /* x = xh * b + xl
-     * y = yh * b + yl
-     *
-     * Karatsuba method:
-     *   x * y = z2 * b^2 + z1 * b + z0
-     *   where
-     *     z2 = xh * yh
-     *     z0 = xl * yl
-     *     z1 = (xh + xl) * (yh + yl) - z2 - z0
-     *
-     *  ref: http://en.wikipedia.org/wiki/Karatsuba_algorithm
-     */
+    z = bignew(zn, 1);
 
-    /* allocate a result bignum */
-    z = bignew(xn + yn, RBIGNUM_SIGN(x)==RBIGNUM_SIGN(y));
+    xds = BDIGITS(x);
     zds = BDIGITS(z);
 
-    /* t1 <- xh * yh */
-    t1 = bigmul0(xh, yh);
-    t1n = big_real_len(t1);
-
-    /* copy t1 into high bytes of the result (z2) */
-    MEMCPY(zds + 2 * n, BDIGITS(t1), BDIGIT, t1n);
-    for (i = 2 * n + t1n; i < xn + yn; i++) zds[i] = 0;
-
-    if (!BIGZEROP(xl) && !BIGZEROP(yl)) {
-	/* t2 <- xl * yl */
-	t2 = bigmul0(xl, yl);
-	t2n = big_real_len(t2);
-
-	/* copy t2 into low bytes of the result (z0) */
-	MEMCPY(zds, BDIGITS(t2), BDIGIT, t2n);
-	for (i = t2n; i < 2 * n; i++) zds[i] = 0;
-    }
-    else {
-	t2 = Qundef;
-	t2n = 0;
-
-	/* copy 0 into low bytes of the result (z0) */
-	for (i = 0; i < 2 * n; i++) zds[i] = 0;
-    }
-
-    /* xh <- xh + xl */
-    if (RBIGNUM_LEN(xl) > RBIGNUM_LEN(xh)) {
-	t3 = xl; xl = xh; xh = t3;
-    }
-    /* xh has a margin for carry */
-    bigadd_core(BDIGITS(xh), RBIGNUM_LEN(xh),
-		BDIGITS(xl), RBIGNUM_LEN(xl),
-		BDIGITS(xh), RBIGNUM_LEN(xh));
-
-    /* yh <- yh + yl */
-    if (x != y) {
-	if (RBIGNUM_LEN(yl) > RBIGNUM_LEN(yh)) {
-	    t3 = yl; yl = yh; yh = t3;
-	}
-	/* yh has a margin for carry */
-	bigadd_core(BDIGITS(yh), RBIGNUM_LEN(yh),
-		    BDIGITS(yl), RBIGNUM_LEN(yl),
-		    BDIGITS(yh), RBIGNUM_LEN(yh));
-    }
-    else yh = xh;
-
-    /* t3 <- xh * yh */
-    t3 = bigmul0(xh, yh);
-
-    i = xn + yn - n;
-    /* subtract t1 from t3 */
-    bigsub_core(BDIGITS(t3), big_real_len(t3), BDIGITS(t1), t1n, BDIGITS(t3), big_real_len(t3));
-
-    /* subtract t2 from t3; t3 is now the middle term of the product */
-    if (t2 != Qundef) bigsub_core(BDIGITS(t3), big_real_len(t3), BDIGITS(t2), t2n, BDIGITS(t3), big_real_len(t3));
-
-    /* add t3 to middle bytes of the result (z1) */
-    bigadd_core(zds + n, i, BDIGITS(t3), big_real_len(t3), zds + n, i);
+#ifdef USE_GMP
+    if (xn < GMP_MUL_DIGITS)
+        bary_sq_fast(zds, zn, xds, xn);
+    else
+        bary_mul(zds, zn, xds, xn, xds, xn);
+#else
+    if (xn < KARATSUBA_MUL_DIGITS)
+        bary_sq_fast(zds, zn, xds, xn);
+    else
+        bary_mul(zds, zn, xds, xn, xds, xn);
+#endif
 
+    RB_GC_GUARD(x);
     return z;
 }
 
-static void
-biglsh_bang(BDIGIT *xds, long xn, unsigned long shift)
-{
-    long const s1 = shift/BITSPERDIG;
-    int const s2 = (int)(shift%BITSPERDIG);
-    int const s3 = BITSPERDIG-s2;
-    BDIGIT* zds;
-    BDIGIT num;
-    long i;
-    if (s1 >= xn) {
-	MEMZERO(xds, BDIGIT, xn);
-	return;
-    }
-    zds = xds + xn - 1;
-    xn -= s1 + 1;
-    num = xds[xn]<<s2;
-    do {
-	*zds-- = num | xds[--xn]>>s3;
-	num = xds[xn]<<s2;
-    }
-    while (xn > 0);
-    *zds = num;
-    for (i = s1; i > 0; --i)
-	*zds-- = 0;
-}
-
-static void
-bigrsh_bang(BDIGIT* xds, long xn, unsigned long shift)
-{
-    long s1 = shift/BITSPERDIG;
-    int s2 = (int)(shift%BITSPERDIG);
-    int s3 = BITSPERDIG - s2;
-    int i;
-    BDIGIT num;
-    BDIGIT* zds;
-    if (s1 >= xn) {
-	MEMZERO(xds, BDIGIT, xn);
-	return;
-    }
-
-    i = 0;
-    zds = xds + s1;
-    num = *zds++>>s2;
-    do {
-	xds[i++] = (BDIGIT)(*zds<<s3) | num;
-	num = *zds++>>s2;
-    }
-    while (i < xn - s1 - 1);
-    xds[i] = num;
-    MEMZERO(xds + xn - s1, BDIGIT, s1);
-}
-
-static void
-big_split3(VALUE v, long n, volatile VALUE* p0, volatile VALUE* p1, volatile VALUE* p2)
-{
-    VALUE v0, v12, v1, v2;
-
-    big_split(v, n, &v12, &v0);
-    big_split(v12, n, &v2, &v1);
-
-    *p0 = bigtrunc(v0);
-    *p1 = bigtrunc(v1);
-    *p2 = bigtrunc(v2);
-}
-
-static VALUE big_lshift(VALUE, unsigned long);
-static VALUE big_rshift(VALUE, unsigned long);
-static VALUE bigdivrem(VALUE, VALUE, volatile VALUE*, volatile VALUE*);
-
 static VALUE
-bigmul1_toom3(VALUE x, VALUE y)
+bigmul0(VALUE x, VALUE y)
 {
-    long n, xn, yn, zn;
-    VALUE x0, x1, x2, y0, y1, y2;
-    VALUE u0, u1, u2, u3, u4, v1, v2, v3;
-    VALUE z0, z1, z2, z3, z4, z, t;
-    BDIGIT* zds;
-
-    xn = RBIGNUM_LEN(x);
-    yn = RBIGNUM_LEN(y);
-    assert(xn <= yn);  /* assume y >= x */
-
-    n = (yn + 2) / 3;
-    big_split3(x, n, &x0, &x1, &x2);
-    if (x == y) {
-	y0 = x0; y1 = x1; y2 = x2;
-    }
-    else big_split3(y, n, &y0, &y1, &y2);
-
-    /*
-     * ref. http://en.wikipedia.org/wiki/Toom%E2%80%93Cook_multiplication
-     *
-     * x(b) = x0 * b^0 + x1 * b^1 + x2 * b^2
-     * y(b) = y0 * b^0 + y1 * b^1 + y2 * b^2
-     *
-     * z(b) = x(b) * y(b)
-     * z(b) = z0 * b^0 + z1 * b^1 + z2 * b^2 + z3 * b^3 + z4 * b^4
-     * where:
-     *   z0 = x0 * y0
-     *   z1 = x0 * y1 + x1 * y0
-     *   z2 = x0 * y2 + x1 * y1 + x2 * y0
-     *   z3 = x1 * y2 + x2 * y1
-     *   z4 = x2 * y2
-     *
-     * Toom3 method (a.k.a. Toom-Cook method):
-     * (Step1) calculating 5 points z(b0), z(b1), z(b2), z(b3), z(b4),
-     * where:
-     *   b0 = 0, b1 = 1, b2 = -1, b3 = -2, b4 = inf,
-     *   z(0)   = x(0)   * y(0)   = x0 * y0
-     *   z(1)   = x(1)   * y(1)   = (x0 + x1 + x2) * (y0 + y1 + y2)
-     *   z(-1)  = x(-1)  * y(-1)  = (x0 - x1 + x2) * (y0 - y1 + y2)
-     *   z(-2)  = x(-2)  * y(-2)  = (x0 - 2 * (x1 - 2 * x2)) * (y0 - 2 * (y1 - 2 * y2))
-     *   z(inf) = x(inf) * y(inf) = x2 * y2
-     *
-     * (Step2) interpolating z0, z1, z2, z3, z4, and z5.
-     *
-     * (Step3) Substituting base value into b of the polynomial z(b),
-     */
-
-    /*
-     * [Step1] calculating 5 points z(b0), z(b1), z(b2), z(b3), z(b4)
-     */
-
-    /* u1 <- x0 + x2 */
-    u1 = bigtrunc(bigadd(x0, x2, 1));
-
-    /* x(-1) : u2 <- u1 - x1 = x0 - x1 + x2 */
-    u2 = bigtrunc(bigsub(u1, x1));
-
-    /* x(1) : u1 <- u1 + x1 = x0 + x1 + x2 */
-    u1 = bigtrunc(bigadd(u1, x1, 1));
-
-    /* x(-2) : u3 <- 2 * (u2 + x2) - x0 = x0 - 2 * (x1 - 2 * x2) */
-    u3 = bigadd(u2, x2, 1);
-    if (BDIGITS(u3)[RBIGNUM_LEN(u3)-1] & BIGRAD_HALF) {
-	rb_big_resize(u3, RBIGNUM_LEN(u3) + 1);
-	BDIGITS(u3)[RBIGNUM_LEN(u3)-1] = 0;
-    }
-    biglsh_bang(BDIGITS(u3), RBIGNUM_LEN(u3), 1);
-    u3 = bigtrunc(bigadd(bigtrunc(u3), x0, 0));
-
-    if (x == y) {
-	v1 = u1; v2 = u2; v3 = u3;
-    }
-    else {
-	/* v1 <- y0 + y2 */
-	v1 = bigtrunc(bigadd(y0, y2, 1));
-
-	/* y(-1) : v2 <- v1 - y1 = y0 - y1 + y2 */
-	v2 = bigtrunc(bigsub(v1, y1));
-
-	/* y(1) : v1 <- v1 + y1 = y0 + y1 + y2 */
-	v1 = bigtrunc(bigadd(v1, y1, 1));
-
-	/* y(-2) : v3 <- 2 * (v2 + y2) - y0 = y0 - 2 * (y1 - 2 * y2) */
-	v3 = bigadd(v2, y2, 1);
-	if (BDIGITS(v3)[RBIGNUM_LEN(v3)-1] & BIGRAD_HALF) {
-	    rb_big_resize(v3, RBIGNUM_LEN(v3) + 1);
-	    BDIGITS(v3)[RBIGNUM_LEN(v3)-1] = 0;
-	}
-	biglsh_bang(BDIGITS(v3), RBIGNUM_LEN(v3), 1);
-	v3 = bigtrunc(bigadd(bigtrunc(v3), y0, 0));
-    }
-
-    /* z(0) : u0 <- x0 * y0 */
-    u0 = bigtrunc(bigmul0(x0, y0));
-
-    /* z(1) : u1 <- u1 * v1 */
-    u1 = bigtrunc(bigmul0(u1, v1));
-
-    /* z(-1) : u2 <- u2 * v2 */
-    u2 = bigtrunc(bigmul0(u2, v2));
-
-    /* z(-2) : u3 <- u3 * v3 */
-    u3 = bigtrunc(bigmul0(u3, v3));
-
-    /* z(inf) : u4 <- x2 * y2 */
-    u4 = bigtrunc(bigmul0(x2, y2));
-
-    /* for GC */
-    v1 = v2 = v3 = Qnil;
-
-    /*
-     * [Step2] interpolating z0, z1, z2, z3, z4, and z5.
-     */
-
-    /* z0 <- z(0) == u0 */
-    z0 = u0;
-
-    /* z4 <- z(inf) == u4 */
-    z4 = u4;
-
-    /* z3 <- (z(-2) - z(1)) / 3 == (u3 - u1) / 3 */
-    z3 = bigadd(u3, u1, 0);
-    bigdivrem(z3, big_three, &z3, NULL); /* TODO: optimize */
-    bigtrunc(z3);
-
-    /* z1 <- (z(1) - z(-1)) / 2 == (u1 - u2) / 2 */
-    z1 = bigtrunc(bigadd(u1, u2, 0));
-    bigrsh_bang(BDIGITS(z1), RBIGNUM_LEN(z1), 1);
-
-    /* z2 <- z(-1) - z(0) == u2 - u0 */
-    z2 = bigtrunc(bigadd(u2, u0, 0));
-
-    /* z3 <- (z2 - z3) / 2 + 2 * z(inf) == (z2 - z3) / 2 + 2 * u4 */
-    z3 = bigtrunc(bigadd(z2, z3, 0));
-    bigrsh_bang(BDIGITS(z3), RBIGNUM_LEN(z3), 1);
-    t = big_lshift(u4, 1); /* TODO: combining with next addition */
-    z3 = bigtrunc(bigadd(z3, t, 1));
+    long xn, yn, zn;
+    VALUE z;
+    BDIGIT *xds, *yds, *zds;
 
-    /* z2 <- z2 + z1 - z(inf) == z2 + z1 - u4 */
-    z2 = bigtrunc(bigadd(z2, z1, 1));
-    z2 = bigtrunc(bigadd(z2, u4, 0));
+    if (x == y)
+        return bigsq(x);
 
-    /* z1 <- z1 - z3 */
-    z1 = bigtrunc(bigadd(z1, z3, 0));
+    xn = BIGNUM_LEN(x);
+    yn = BIGNUM_LEN(y);
+    zn = xn + yn;
 
-    /*
-     * [Step3] Substituting base value into b of the polynomial z(b),
-     */
+    z = bignew(zn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
 
-    zn = 6*n + 1;
-    z = bignew(zn, RBIGNUM_SIGN(x)==RBIGNUM_SIGN(y));
+    xds = BDIGITS(x);
+    yds = BDIGITS(y);
     zds = BDIGITS(z);
-    MEMCPY(zds, BDIGITS(z0), BDIGIT, RBIGNUM_LEN(z0));
-    MEMZERO(zds + RBIGNUM_LEN(z0), BDIGIT, zn - RBIGNUM_LEN(z0));
-    bigadd_core(zds +   n, zn -   n, BDIGITS(z1), big_real_len(z1), zds +   n, zn -   n);
-    bigadd_core(zds + 2*n, zn - 2*n, BDIGITS(z2), big_real_len(z2), zds + 2*n, zn - 2*n);
-    bigadd_core(zds + 3*n, zn - 3*n, BDIGITS(z3), big_real_len(z3), zds + 3*n, zn - 3*n);
-    bigadd_core(zds + 4*n, zn - 4*n, BDIGITS(z4), big_real_len(z4), zds + 4*n, zn - 4*n);
-    z = bignorm(z);
 
-    return bignorm(z);
-}
-
-/* efficient squaring (2 times faster than normal multiplication)
- * ref: Handbook of Applied Cryptography, Algorithm 14.16
- *      http://www.cacr.math.uwaterloo.ca/hac/about/chap14.pdf
- */
-static VALUE
-bigsqr_fast(VALUE x)
-{
-    long len = RBIGNUM_LEN(x), i, j;
-    VALUE z = bignew(2 * len + 1, 1);
-    BDIGIT *xds = BDIGITS(x), *zds = BDIGITS(z);
-    BDIGIT_DBL c, v, w;
+    bary_mul(zds, zn, xds, xn, yds, yn);
 
-    for (i = 2 * len + 1; i--; ) zds[i] = 0;
-    for (i = 0; i < len; i++) {
-	v = (BDIGIT_DBL)xds[i];
-	if (!v) continue;
-	c = (BDIGIT_DBL)zds[i + i] + v * v;
-	zds[i + i] = BIGLO(c);
-	c = BIGDN(c);
-	v *= 2;
-	for (j = i + 1; j < len; j++) {
-	    w = (BDIGIT_DBL)xds[j];
-	    c += (BDIGIT_DBL)zds[i + j] + BIGLO(v) * w;
-	    zds[i + j] = BIGLO(c);
-	    c = BIGDN(c);
-	    if (BIGDN(v)) c += w;
-	}
-	if (c) {
-	    c += (BDIGIT_DBL)zds[i + len];
-	    zds[i + len] = BIGLO(c);
-	    c = BIGDN(c);
-	}
-	if (c) zds[i + len + 1] += (BDIGIT)c;
-    }
+    RB_GC_GUARD(x);
+    RB_GC_GUARD(y);
     return z;
 }
 
-#define KARATSUBA_MUL_DIGITS 70
-#define TOOM3_MUL_DIGITS 150
-
-
-/* determine whether a bignum is sparse or not by random sampling */
-static inline VALUE
-big_sparse_p(VALUE x)
-{
-    long c = 0, n = RBIGNUM_LEN(x);
-
-    if (          BDIGITS(x)[rb_genrand_ulong_limited(n / 2) + n / 4]) c++;
-    if (c <= 1 && BDIGITS(x)[rb_genrand_ulong_limited(n / 2) + n / 4]) c++;
-    if (c <= 1 && BDIGITS(x)[rb_genrand_ulong_limited(n / 2) + n / 4]) c++;
-
-    return (c <= 1) ? Qtrue : Qfalse;
-}
-
-static VALUE
-bigmul0(VALUE x, VALUE y)
-{
-    long xn, yn;
-
-    xn = RBIGNUM_LEN(x);
-    yn = RBIGNUM_LEN(y);
-
-    /* make sure that y is longer than x */
-    if (xn > yn) {
-	VALUE t;
-	long tn;
-	t = x; x = y; y = t;
-	tn = xn; xn = yn; yn = tn;
-    }
-    assert(xn <= yn);
-
-    /* normal multiplication when x is small */
-    if (xn < KARATSUBA_MUL_DIGITS) {
-      normal:
-	if (x == y) return bigsqr_fast(x);
-	if (xn == 1 && yn == 1) return bigmul1_single(x, y);
-	return bigmul1_normal(x, y);
-    }
-
-    /* normal multiplication when x or y is a sparse bignum */
-    if (big_sparse_p(x)) goto normal;
-    if (big_sparse_p(y)) return bigmul1_normal(y, x);
-
-    /* balance multiplication by slicing y when x is much smaller than y */
-    if (2 * xn <= yn) return bigmul1_balance(x, y);
-
-    if (xn < TOOM3_MUL_DIGITS) {
-	/* multiplication by karatsuba method */
-	return bigmul1_karatsuba(x, y);
-    }
-    else if (3*xn <= 2*(yn + 2))
-	return bigmul1_balance(x, y);
-    return bigmul1_toom3(x, y);
-}
-
 /*
  *  call-seq:
  *     big * other  -> Numeric
@@ -2659,207 +5903,112 @@ bigmul0(VALUE x, VALUE y)
 VALUE
 rb_big_mul(VALUE x, VALUE y)
 {
-    switch (TYPE(y)) {
-      case T_FIXNUM:
+    if (FIXNUM_P(y)) {
 	y = rb_int2big(FIX2LONG(y));
-	break;
-
-      case T_BIGNUM:
-	break;
-
-      case T_FLOAT:
+    }
+    else if (RB_BIGNUM_TYPE_P(y)) {
+    }
+    else if (RB_FLOAT_TYPE_P(y)) {
 	return DBL2NUM(rb_big2dbl(x) * RFLOAT_VALUE(y));
-
-      default:
+    }
+    else {
 	return rb_num_coerce_bin(x, y, '*');
     }
 
     return bignorm(bigmul0(x, y));
 }
 
-struct big_div_struct {
-    long nx, ny, j, nyzero;
-    BDIGIT *yds, *zds;
-    volatile VALUE stop;
-};
-
-static void *
-bigdivrem1(void *ptr)
-{
-    struct big_div_struct *bds = (struct big_div_struct*)ptr;
-    long ny = bds->ny;
-    long i, j;
-    BDIGIT *yds = bds->yds, *zds = bds->zds;
-    BDIGIT_DBL t2;
-    BDIGIT_DBL_SIGNED num;
-    BDIGIT q;
-
-    j = bds->j;
-    do {
-	if (bds->stop) {
-	    bds->j = j;
-	    return 0;
-        }
-	if (zds[j] ==  yds[ny-1]) q = (BDIGIT)BIGRAD-1;
-	else q = (BDIGIT)((BIGUP(zds[j]) + zds[j-1])/yds[ny-1]);
-	if (q) {
-           i = bds->nyzero; num = 0; t2 = 0;
-	    do {			/* multiply and subtract */
-		BDIGIT_DBL ee;
-		t2 += (BDIGIT_DBL)yds[i] * q;
-		ee = num - BIGLO(t2);
-		num = (BDIGIT_DBL)zds[j - ny + i] + ee;
-		if (ee) zds[j - ny + i] = BIGLO(num);
-		num = BIGDN(num);
-		t2 = BIGDN(t2);
-	    } while (++i < ny);
-	    num += zds[j - ny + i] - t2;/* borrow from high digit; don't update */
-	    while (num) {		/* "add back" required */
-		i = 0; num = 0; q--;
-		do {
-		    BDIGIT_DBL ee = num + yds[i];
-		    num = (BDIGIT_DBL)zds[j - ny + i] + ee;
-		    if (ee) zds[j - ny + i] = BIGLO(num);
-		    num = BIGDN(num);
-		} while (++i < ny);
-		num--;
-	    }
-	}
-	zds[j] = q;
-    } while (--j >= ny);
-    return 0;
-}
-
-static void
-rb_big_stop(void *ptr)
-{
-    struct big_div_struct *bds = ptr;
-    bds->stop = Qtrue;
-}
-
 static VALUE
 bigdivrem(VALUE x, VALUE y, volatile VALUE *divp, volatile VALUE *modp)
 {
-    struct big_div_struct bds;
-    long nx = RBIGNUM_LEN(x), ny = RBIGNUM_LEN(y);
-    long i, j;
-    VALUE z, yy, zz;
-    BDIGIT *xds, *yds, *zds, *tds;
-    BDIGIT_DBL t2;
-    BDIGIT dd, q;
+    long xn = BIGNUM_LEN(x), yn = BIGNUM_LEN(y);
+    VALUE z;
+    BDIGIT *xds, *yds, *zds;
+    BDIGIT dd;
+
+    VALUE q = Qnil, r = Qnil;
+    BDIGIT *qds, *rds;
+    long qn, rn;
 
-    if (BIGZEROP(y)) rb_num_zerodiv();
-    xds = BDIGITS(x);
     yds = BDIGITS(y);
-    if (nx < ny || (nx == ny && xds[nx - 1] < yds[ny - 1])) {
+    BARY_TRUNC(yds, yn);
+    if (yn == 0)
+        rb_num_zerodiv();
+
+    xds = BDIGITS(x);
+    BARY_TRUNC(xds, xn);
+
+    if (xn < yn || (xn == yn && xds[xn - 1] < yds[yn - 1])) {
 	if (divp) *divp = rb_int2big(0);
 	if (modp) *modp = x;
 	return Qnil;
     }
-    if (ny == 1) {
+    if (yn == 1) {
 	dd = yds[0];
-	z = rb_big_clone(x);
+	z = bignew(xn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
 	zds = BDIGITS(z);
-	t2 = 0; i = nx;
-	while (i--) {
-	    t2 = BIGUP(t2) + zds[i];
-	    zds[i] = (BDIGIT)(t2 / dd);
-	    t2 %= dd;
-	}
-	RBIGNUM_SET_SIGN(z, RBIGNUM_SIGN(x)==RBIGNUM_SIGN(y));
+        dd = bigdivrem_single(zds, xds, xn, dd);
 	if (modp) {
-	    *modp = rb_uint2big((VALUE)t2);
-	    RBIGNUM_SET_SIGN(*modp, RBIGNUM_SIGN(x));
+	    *modp = rb_uint2big((VALUE)dd);
+	    BIGNUM_SET_SIGN(*modp, BIGNUM_SIGN(x));
 	}
 	if (divp) *divp = z;
 	return Qnil;
     }
+    if (xn == 2 && yn == 2) {
+        BDIGIT_DBL x0 = bary2bdigitdbl(xds, 2);
+        BDIGIT_DBL y0 = bary2bdigitdbl(yds, 2);
+        BDIGIT_DBL q0 = x0 / y0;
+        BDIGIT_DBL r0 = x0 % y0;
+        if (divp) {
+            z = bignew(bdigit_roomof(sizeof(BDIGIT_DBL)), BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+            zds = BDIGITS(z);
+            zds[0] = BIGLO(q0);
+            zds[1] = BIGLO(BIGDN(q0));
+            *divp = z;
+        }
+        if (modp) {
+            z = bignew(bdigit_roomof(sizeof(BDIGIT_DBL)), BIGNUM_SIGN(x));
+            zds = BDIGITS(z);
+            zds[0] = BIGLO(r0);
+            zds[1] = BIGLO(BIGDN(r0));
+            *modp = z;
+        }
+        return Qnil;
+    }
 
-    z = bignew(nx==ny?nx+2:nx+1, RBIGNUM_SIGN(x)==RBIGNUM_SIGN(y));
-    zds = BDIGITS(z);
-    if (nx==ny) zds[nx+1] = 0;
-    while (!yds[ny-1]) ny--;
-
-    dd = 0;
-    q = yds[ny-1];
-    while ((q & (BDIGIT)(1UL<<(BITSPERDIG-1))) == 0) {
-	q <<= 1UL;
-	dd++;
-    }
-    if (dd) {
-	yy = rb_big_clone(y);
-	tds = BDIGITS(yy);
-	j = 0;
-	t2 = 0;
-	while (j<ny) {
-	    t2 += (BDIGIT_DBL)yds[j]<<dd;
-	    tds[j++] = BIGLO(t2);
-	    t2 = BIGDN(t2);
-	}
-	yds = tds;
-	RB_GC_GUARD(y) = yy;
-	j = 0;
-	t2 = 0;
-	while (j<nx) {
-	    t2 += (BDIGIT_DBL)xds[j]<<dd;
-	    zds[j++] = BIGLO(t2);
-	    t2 = BIGDN(t2);
-	}
-	zds[j] = (BDIGIT)t2;
+    if (divp) {
+        qn = xn + BIGDIVREM_EXTRA_WORDS;
+        q = bignew(qn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+        qds = BDIGITS(q);
     }
     else {
-	zds[nx] = 0;
-	j = nx;
-	while (j--) zds[j] = xds[j];
+        qn = 0;
+        qds = NULL;
     }
 
-    bds.nx = nx;
-    bds.ny = ny;
-    bds.zds = zds;
-    bds.yds = yds;
-    bds.stop = Qfalse;
-    bds.j = nx==ny?nx+1:nx;
-    for (bds.nyzero = 0; !yds[bds.nyzero]; bds.nyzero++);
-    if (nx > 10000 || ny > 10000) {
-      retry:
-	bds.stop = Qfalse;
-	rb_thread_call_without_gvl(bigdivrem1, &bds, rb_big_stop, &bds);
-
-	if (bds.stop == Qtrue) {
-	    /* execute trap handler, but exception was not raised. */
-	    goto retry;
-	}
+    if (modp) {
+        rn = yn;
+        r = bignew(rn, BIGNUM_SIGN(x));
+        rds = BDIGITS(r);
     }
     else {
-	bigdivrem1(&bds);
+        rn = 0;
+        rds = NULL;
     }
 
-    if (divp) {			/* move quotient down in z */
-	*divp = zz = rb_big_clone(z);
-	zds = BDIGITS(zz);
-	j = (nx==ny ? nx+2 : nx+1) - ny;
-	for (i = 0;i < j;i++) zds[i] = zds[i+ny];
-	if (!zds[i-1]) i--;
-	RBIGNUM_SET_LEN(zz, i);
-    }
-    if (modp) {			/* normalize remainder */
-	*modp = zz = rb_big_clone(z);
-	zds = BDIGITS(zz);
-	while (ny > 1 && !zds[ny-1]) --ny;
-	if (dd) {
-	    t2 = 0; i = ny;
-	    while (i--) {
-		t2 = (t2 | zds[i]) >> dd;
-		q = zds[i];
-		zds[i] = BIGLO(t2);
-		t2 = BIGUP(q);
-	    }
-	}
-	if (!zds[ny-1]) ny--;
-	RBIGNUM_SET_LEN(zz, ny);
-	RBIGNUM_SET_SIGN(zz, RBIGNUM_SIGN(x));
+    bary_divmod_branch(qds, qn, rds, rn, xds, xn, yds, yn);
+
+    if (divp) {
+        bigtrunc(q);
+        *divp = q;
     }
-    return z;
+    if (modp) {
+        bigtrunc(r);
+        *modp = r;
+    }
+
+    return Qnil;
 }
 
 static void
@@ -2868,7 +6017,7 @@ bigdivmod(VALUE x, VALUE y, volatile VALUE *divp, volatile VALUE *modp)
     VALUE mod;
 
     bigdivrem(x, y, divp, &mod);
-    if (RBIGNUM_SIGN(x) != RBIGNUM_SIGN(y) && !BIGZEROP(mod)) {
+    if (BIGNUM_SIGN(x) != BIGNUM_SIGN(y) && !BIGZEROP(mod)) {
 	if (divp) *divp = bigadd(*divp, rb_int2big(1), 0);
 	if (modp) *modp = bigadd(mod, y, 1);
     }
@@ -2883,27 +6032,22 @@ rb_big_divide(VALUE x, VALUE y, ID op)
 {
     VALUE z;
 
-    switch (TYPE(y)) {
-      case T_FIXNUM:
+    if (FIXNUM_P(y)) {
 	y = rb_int2big(FIX2LONG(y));
-	break;
-
-      case T_BIGNUM:
-	break;
-
-      case T_FLOAT:
-	{
-	    if (op == '/') {
-		return DBL2NUM(rb_big2dbl(x) / RFLOAT_VALUE(y));
-	    }
-	    else {
-		double dy = RFLOAT_VALUE(y);
-		if (dy == 0.0) rb_num_zerodiv();
-		return rb_dbl2big(rb_big2dbl(x) / dy);
-	    }
+    }
+    else if (RB_BIGNUM_TYPE_P(y)) {
+    }
+    else if (RB_FLOAT_TYPE_P(y)) {
+	if (op == '/') {
+	    return DBL2NUM(rb_big2dbl(x) / RFLOAT_VALUE(y));
 	}
-
-      default:
+	else {
+	    double dy = RFLOAT_VALUE(y);
+	    if (dy == 0.0) rb_num_zerodiv();
+	    return rb_dbl2big(rb_big2dbl(x) / dy);
+	}
+    }
+    else {
 	return rb_num_coerce_bin(x, y, op);
     }
     bigdivmod(x, y, &z, 0);
@@ -2953,15 +6097,10 @@ rb_big_modulo(VALUE x, VALUE y)
 {
     VALUE z;
 
-    switch (TYPE(y)) {
-      case T_FIXNUM:
+    if (FIXNUM_P(y)) {
 	y = rb_int2big(FIX2LONG(y));
-	break;
-
-      case T_BIGNUM:
-	break;
-
-      default:
+    }
+    else if (!RB_BIGNUM_TYPE_P(y)) {
 	return rb_num_coerce_bin(x, y, '%');
     }
     bigdivmod(x, y, 0, &z);
@@ -2983,15 +6122,10 @@ rb_big_remainder(VALUE x, VALUE y)
 {
     VALUE z;
 
-    switch (TYPE(y)) {
-      case T_FIXNUM:
+    if (FIXNUM_P(y)) {
 	y = rb_int2big(FIX2LONG(y));
-	break;
-
-      case T_BIGNUM:
-	break;
-
-      default:
+    }
+    else if (!RB_BIGNUM_TYPE_P(y)) {
 	return rb_num_coerce_bin(x, y, rb_intern("remainder"));
     }
     bigdivrem(x, y, 0, &z);
@@ -3011,15 +6145,10 @@ rb_big_divmod(VALUE x, VALUE y)
 {
     VALUE div, mod;
 
-    switch (TYPE(y)) {
-      case T_FIXNUM:
+    if (FIXNUM_P(y)) {
 	y = rb_int2big(FIX2LONG(y));
-	break;
-
-      case T_BIGNUM:
-	break;
-
-      default:
+    }
+    else if (!RB_BIGNUM_TYPE_P(y)) {
 	return rb_num_coerce_bin(x, y, rb_intern("divmod"));
     }
     bigdivmod(x, y, &div, &mod);
@@ -3027,73 +6156,29 @@ rb_big_divmod(VALUE x, VALUE y)
     return rb_assoc_new(bignorm(div), bignorm(mod));
 }
 
-static int
-bdigbitsize(BDIGIT x)
-{
-    int size = 1;
-    int nb = BITSPERDIG / 2;
-    BDIGIT bits = (~0 << nb);
-
-    if (!x) return 0;
-    while (x > 1) {
-	if (x & bits) {
-	    size += nb;
-	    x >>= nb;
-	}
-	x &= ~bits;
-	nb /= 2;
-	bits >>= nb;
-    }
-
-    return size;
-}
-
-static VALUE big_lshift(VALUE, unsigned long);
-static VALUE big_rshift(VALUE, unsigned long);
-
 static VALUE
 big_shift(VALUE x, long n)
 {
     if (n < 0)
-	return big_lshift(x, (unsigned long)-n);
+	return big_lshift(x, 1+(unsigned long)(-(n+1)));
     else if (n > 0)
 	return big_rshift(x, (unsigned long)n);
     return x;
 }
 
 static VALUE
-big_fdiv(VALUE x, VALUE y)
+big_fdiv(VALUE x, VALUE y, long ey)
 {
 #define DBL_BIGDIG ((DBL_MANT_DIG + BITSPERDIG) / BITSPERDIG)
     VALUE z;
-    long l, ex, ey;
-    int i;
+    long l, ex;
 
     bigtrunc(x);
-    l = RBIGNUM_LEN(x) - 1;
-    ex = l * BITSPERDIG;
-    ex += bdigbitsize(BDIGITS(x)[l]);
+    l = BIGNUM_LEN(x);
+    ex = l * BITSPERDIG - nlz(BDIGITS(x)[l-1]);
     ex -= 2 * DBL_BIGDIG * BITSPERDIG;
     if (ex) x = big_shift(x, ex);
 
-    switch (TYPE(y)) {
-      case T_FIXNUM:
-	y = rb_int2big(FIX2LONG(y));
-      case T_BIGNUM:
-	bigtrunc(y);
-	l = RBIGNUM_LEN(y) - 1;
-	ey = l * BITSPERDIG;
-	ey += bdigbitsize(BDIGITS(y)[l]);
-	ey -= DBL_BIGDIG * BITSPERDIG;
-	if (ey) y = big_shift(y, ey);
-	break;
-      case T_FLOAT:
-	y = dbl2big(ldexp(frexp(RFLOAT_VALUE(y), &i), DBL_MANT_DIG));
-	ey = i - DBL_MANT_DIG;
-	break;
-      default:
-	rb_bug("big_fdiv");
-    }
     bigdivrem(x, y, &z, 0);
     l = ex - ey;
 #if SIZEOF_LONG > SIZEOF_INT
@@ -3106,6 +6191,26 @@ big_fdiv(VALUE x, VALUE y)
     return DBL2NUM(ldexp(big2dbl(z), (int)l));
 }
 
+static VALUE
+big_fdiv_int(VALUE x, VALUE y)
+{
+    long l, ey;
+    bigtrunc(y);
+    l = BIGNUM_LEN(y);
+    ey = l * BITSPERDIG - nlz(BDIGITS(y)[l-1]);
+    ey -= DBL_BIGDIG * BITSPERDIG;
+    if (ey) y = big_shift(y, ey);
+    return big_fdiv(x, y, ey);
+}
+
+static VALUE
+big_fdiv_float(VALUE x, VALUE y)
+{
+    int i;
+    y = dbl2big(ldexp(frexp(RFLOAT_VALUE(y), &i), DBL_MANT_DIG));
+    return big_fdiv(x, y, i - DBL_MANT_DIG);
+}
+
 /*
  *  call-seq:
   *     big.fdiv(numeric) -> float
@@ -3125,39 +6230,29 @@ rb_big_fdiv(VALUE x, VALUE y)
     double dx, dy;
 
     dx = big2dbl(x);
-    switch (TYPE(y)) {
-      case T_FIXNUM:
+    if (FIXNUM_P(y)) {
 	dy = (double)FIX2LONG(y);
 	if (isinf(dx))
-	    return big_fdiv(x, y);
-	break;
-
-      case T_BIGNUM:
+	    return big_fdiv_int(x, rb_int2big(FIX2LONG(y)));
+    }
+    else if (RB_BIGNUM_TYPE_P(y)) {
 	dy = rb_big2dbl(y);
 	if (isinf(dx) || isinf(dy))
-	    return big_fdiv(x, y);
-	break;
-
-      case T_FLOAT:
+	    return big_fdiv_int(x, y);
+    }
+    else if (RB_FLOAT_TYPE_P(y)) {
 	dy = RFLOAT_VALUE(y);
 	if (isnan(dy))
 	    return y;
 	if (isinf(dx))
-	    return big_fdiv(x, y);
-	break;
-
-      default:
+	    return big_fdiv_float(x, y);
+    }
+    else {
 	return rb_num_coerce_bin(x, y, rb_intern("fdiv"));
     }
     return DBL2NUM(dx / dy);
 }
 
-static VALUE
-bigsqr(VALUE x)
-{
-    return bigtrunc(bigmul0(x, x));
-}
-
 /*
  *  call-seq:
  *     big ** exponent   -> numeric
@@ -3168,7 +6263,7 @@ bigsqr(VALUE x)
  *
  *    123456789 ** 2      #=> 15241578750190521
  *    123456789 ** 1.2    #=> 5126464716.09932
- *    123456789 ** -2     #=> 6.5610001194102e-17
+ *    123456789 ** -2     #=> (1/15241578750190521)
  */
 
 VALUE
@@ -3177,20 +6272,21 @@ rb_big_pow(VALUE x, VALUE y)
     double d;
     SIGNED_VALUE yy;
 
+  again:
     if (y == INT2FIX(0)) return INT2FIX(1);
-    switch (TYPE(y)) {
-      case T_FLOAT:
+    if (RB_FLOAT_TYPE_P(y)) {
 	d = RFLOAT_VALUE(y);
-	if ((!RBIGNUM_SIGN(x) && !BIGZEROP(x)) && d != round(d))
+	if ((!BIGNUM_SIGN(x) && !BIGZEROP(x)) && d != round(d))
 	    return rb_funcall(rb_complex_raw1(x), rb_intern("**"), 1, y);
-	break;
-
-      case T_BIGNUM:
+    }
+    else if (RB_BIGNUM_TYPE_P(y)) {
+	y = bignorm(y);
+	if (FIXNUM_P(y))
+	    goto again;
 	rb_warn("in a**b, b may be too big");
 	d = rb_big2dbl(y);
-	break;
-
-      case T_FIXNUM:
+    }
+    else if (FIXNUM_P(y)) {
 	yy = FIX2LONG(y);
 
 	if (yy < 0)
@@ -3198,73 +6294,84 @@ rb_big_pow(VALUE x, VALUE y)
 	else {
 	    VALUE z = 0;
 	    SIGNED_VALUE mask;
-	    const long xlen = RBIGNUM_LEN(x) - 1;
-	    const long xbits = ffs(RBIGNUM_DIGITS(x)[xlen]) + SIZEOF_BDIGITS*BITSPERDIG*xlen;
-	    const long BIGLEN_LIMIT = BITSPERDIG*1024*1024;
+            const size_t xbits = rb_absint_numwords(x, 1, NULL);
+	    const size_t BIGLEN_LIMIT = 32*1024*1024;
 
-	    if ((xbits > BIGLEN_LIMIT) || (xbits * yy > BIGLEN_LIMIT)) {
+	    if (xbits == (size_t)-1 ||
+                (xbits > BIGLEN_LIMIT) ||
+                (xbits * yy > BIGLEN_LIMIT)) {
 		rb_warn("in a**b, b may be too big");
 		d = (double)yy;
-		break;
 	    }
-	    for (mask = FIXNUM_MAX + 1; mask; mask >>= 1) {
-		if (z) z = bigsqr(z);
-		if (yy & mask) {
-		    z = z ? bigtrunc(bigmul0(z, x)) : x;
+	    else {
+		for (mask = FIXNUM_MAX + 1; mask; mask >>= 1) {
+		    if (z) z = bigsq(z);
+		    if (yy & mask) {
+			z = z ? bigtrunc(bigmul0(z, x)) : x;
+		    }
 		}
+		return bignorm(z);
 	    }
-	    return bignorm(z);
 	}
-	/* NOTREACHED */
-	break;
-
-      default:
+    }
+    else {
 	return rb_num_coerce_bin(x, y, rb_intern("**"));
     }
     return DBL2NUM(pow(rb_big2dbl(x), d));
 }
 
 static VALUE
-bigand_int(VALUE x, long y)
+bigand_int(VALUE x, long xn, BDIGIT hibitsx, long y)
 {
     VALUE z;
     BDIGIT *xds, *zds;
-    long xn, zn;
+    long zn;
     long i;
-    char sign;
+    BDIGIT hibitsy;
 
     if (y == 0) return INT2FIX(0);
-    sign = (y > 0);
+    if (xn == 0) return hibitsx ? LONG2NUM(y) : 0;
+    hibitsy = 0 <= y ? 0 : BDIGMAX;
     xds = BDIGITS(x);
-    zn = xn = RBIGNUM_LEN(x);
-#if SIZEOF_BDIGITS == SIZEOF_LONG
-    if (sign) {
+#if SIZEOF_BDIGIT >= SIZEOF_LONG
+    if (!hibitsy) {
 	y &= xds[0];
 	return LONG2NUM(y);
     }
 #endif
 
-    z = bignew(zn, RBIGNUM_SIGN(x) || sign);
+    zn = xn;
+#if SIZEOF_BDIGIT < SIZEOF_LONG
+    if (hibitsx && zn < bdigit_roomof(SIZEOF_LONG))
+        zn = bdigit_roomof(SIZEOF_LONG);
+#endif
+
+    z = bignew(zn, 0);
     zds = BDIGITS(z);
 
-#if SIZEOF_BDIGITS == SIZEOF_LONG
+#if SIZEOF_BDIGIT >= SIZEOF_LONG
     i = 1;
-    zds[0] = xds[0] & y;
+    zds[0] = xds[0] & BIGLO(y);
 #else
-    {
-	BDIGIT_DBL num = y;
-
-	for (i=0; i<(int)(sizeof(y)/sizeof(BDIGIT)); i++) {
-	    zds[i] = xds[i] & BIGLO(num);
-	    num = BIGDN(num);
-	}
+    for (i=0; i < xn; i++) {
+        if (y == 0 || y == -1) break;
+        zds[i] = xds[i] & BIGLO(y);
+        y = BIGDN(y);
+    }
+    for (; i < zn; i++) {
+        if (y == 0 || y == -1) break;
+        zds[i] = hibitsx & BIGLO(y);
+        y = BIGDN(y);
     }
 #endif
-    while (i < xn) {
-	zds[i] = sign?0:xds[i];
-	i++;
+    for (;i < xn; i++) {
+	zds[i] = xds[i] & hibitsy;
     }
-    if (!RBIGNUM_SIGN(z)) get2comp(z);
+    for (;i < zn; i++) {
+	zds[i] = hibitsx & hibitsy;
+    }
+    twocomp2abs_bang(z, hibitsx && hibitsy);
+    RB_GC_GUARD(x);
     return bignorm(z);
 }
 
@@ -3276,91 +6383,121 @@ bigand_int(VALUE x, long y)
  */
 
 VALUE
-rb_big_and(VALUE xx, VALUE yy)
+rb_big_and(VALUE x, VALUE y)
 {
-    volatile VALUE x, y, z;
+    VALUE z;
     BDIGIT *ds1, *ds2, *zds;
-    long i, l1, l2;
-    char sign;
+    long i, xn, yn, n1, n2;
+    BDIGIT hibitsx, hibitsy;
+    BDIGIT hibits1, hibits2;
+    VALUE tmpv;
+    BDIGIT tmph;
+    long tmpn;
 
-    if (!FIXNUM_P(yy) && !RB_TYPE_P(yy, T_BIGNUM)) {
-	return rb_num_coerce_bit(xx, yy, '&');
+    if (!FIXNUM_P(y) && !RB_BIGNUM_TYPE_P(y)) {
+	return rb_num_coerce_bit(x, y, '&');
     }
 
-    x = xx;
-    y = yy;
-
-    if (!RBIGNUM_SIGN(x)) {
-	x = rb_big_clone(x);
-	get2comp(x);
-    }
+    hibitsx = abs2twocomp(&x, &xn);
     if (FIXNUM_P(y)) {
-	return bigand_int(x, FIX2LONG(y));
-    }
-    if (!RBIGNUM_SIGN(y)) {
-	y = rb_big_clone(y);
-	get2comp(y);
+	return bigand_int(x, xn, hibitsx, FIX2LONG(y));
     }
-    if (RBIGNUM_LEN(x) > RBIGNUM_LEN(y)) {
-	l1 = RBIGNUM_LEN(y);
-	l2 = RBIGNUM_LEN(x);
-	ds1 = BDIGITS(y);
-	ds2 = BDIGITS(x);
-	sign = RBIGNUM_SIGN(y);
-    }
-    else {
-	l1 = RBIGNUM_LEN(x);
-	l2 = RBIGNUM_LEN(y);
-	ds1 = BDIGITS(x);
-	ds2 = BDIGITS(y);
-	sign = RBIGNUM_SIGN(x);
+    hibitsy = abs2twocomp(&y, &yn);
+    if (xn > yn) {
+        tmpv = x; x = y; y = tmpv;
+        tmpn = xn; xn = yn; yn = tmpn;
+        tmph = hibitsx; hibitsx = hibitsy; hibitsy = tmph;
     }
-    z = bignew(l2, RBIGNUM_SIGN(x) || RBIGNUM_SIGN(y));
+    n1 = xn;
+    n2 = yn;
+    ds1 = BDIGITS(x);
+    ds2 = BDIGITS(y);
+    hibits1 = hibitsx;
+    hibits2 = hibitsy;
+
+    if (!hibits1)
+        n2 = n1;
+
+    z = bignew(n2, 0);
     zds = BDIGITS(z);
 
-    for (i=0; i<l1; i++) {
+    for (i=0; i<n1; i++) {
 	zds[i] = ds1[i] & ds2[i];
     }
-    for (; i<l2; i++) {
-	zds[i] = sign?0:ds2[i];
+    for (; i<n2; i++) {
+	zds[i] = hibits1 & ds2[i];
     }
-    if (!RBIGNUM_SIGN(z)) get2comp(z);
+    twocomp2abs_bang(z, hibits1 && hibits2);
+    RB_GC_GUARD(x);
+    RB_GC_GUARD(y);
     return bignorm(z);
 }
 
 static VALUE
-bigor_int(VALUE x, long y)
+bigor_int(VALUE x, long xn, BDIGIT hibitsx, long y)
 {
     VALUE z;
     BDIGIT *xds, *zds;
-    long xn, zn;
+    long zn;
     long i;
-    char sign;
+    BDIGIT hibitsy;
 
-    sign = (y >= 0);
+    if (y == -1) return INT2FIX(-1);
+    if (xn == 0) return hibitsx ? INT2FIX(-1) : LONG2FIX(y);
+    hibitsy = 0 <= y ? 0 : BDIGMAX;
     xds = BDIGITS(x);
-    zn = xn = RBIGNUM_LEN(x);
-    z = bignew(zn, RBIGNUM_SIGN(x) && sign);
+
+    zn = BIGNUM_LEN(x);
+#if SIZEOF_BDIGIT < SIZEOF_LONG
+    if (zn < bdigit_roomof(SIZEOF_LONG))
+        zn = bdigit_roomof(SIZEOF_LONG);
+#endif
+    z = bignew(zn, 0);
     zds = BDIGITS(z);
 
-#if SIZEOF_BDIGITS == SIZEOF_LONG
+#if SIZEOF_BDIGIT >= SIZEOF_LONG
     i = 1;
-    zds[0] = xds[0] | y;
+    zds[0] = xds[0] | BIGLO(y);
+    if (i < zn)
+        goto y_is_fixed_point;
+    goto finish;
 #else
-    {
-	BDIGIT_DBL num = y;
+    for (i=0; i < xn; i++) {
+        if (y == 0 || y == -1) goto y_is_fixed_point;
+        zds[i] = xds[i] | BIGLO(y);
+        y = BIGDN(y);
+    }
+    if (hibitsx)
+        goto fill_hibits;
+    for (; i < zn; i++) {
+        if (y == 0 || y == -1) goto y_is_fixed_point;
+        zds[i] = BIGLO(y);
+        y = BIGDN(y);
+    }
+  goto finish;
+#endif
 
-	for (i=0; i<(int)(sizeof(y)/sizeof(BDIGIT)); i++) {
-	    zds[i] = xds[i] | BIGLO(num);
-	    num = BIGDN(num);
-	}
+  y_is_fixed_point:
+    if (hibitsy)
+        goto fill_hibits;
+    for (; i < xn; i++) {
+        zds[i] = xds[i];
     }
-#endif
-    while (i < xn) {
-	zds[i] = sign?xds[i]:(BDIGIT)(BIGRAD-1);
-	i++;
+    if (hibitsx)
+        goto fill_hibits;
+    for (; i < zn; i++) {
+        zds[i] = 0;
+    }
+  goto finish;
+
+  fill_hibits:
+    for (; i < zn; i++) {
+        zds[i] = BDIGMAX;
     }
-    if (!RBIGNUM_SIGN(z)) get2comp(z);
+
+  finish:
+    twocomp2abs_bang(z, hibitsx || hibitsy);
+    RB_GC_GUARD(x);
     return bignorm(z);
 }
 
@@ -3372,91 +6509,96 @@ bigor_int(VALUE x, long y)
  */
 
 VALUE
-rb_big_or(VALUE xx, VALUE yy)
+rb_big_or(VALUE x, VALUE y)
 {
-    volatile VALUE x, y, z;
+    VALUE z;
     BDIGIT *ds1, *ds2, *zds;
-    long i, l1, l2;
-    char sign;
+    long i, xn, yn, n1, n2;
+    BDIGIT hibitsx, hibitsy;
+    BDIGIT hibits1, hibits2;
+    VALUE tmpv;
+    BDIGIT tmph;
+    long tmpn;
 
-    if (!FIXNUM_P(yy) && !RB_TYPE_P(yy, T_BIGNUM)) {
-	return rb_num_coerce_bit(xx, yy, '|');
+    if (!FIXNUM_P(y) && !RB_BIGNUM_TYPE_P(y)) {
+	return rb_num_coerce_bit(x, y, '|');
     }
 
-    x = xx;
-    y = yy;
-
-    if (!RBIGNUM_SIGN(x)) {
-	x = rb_big_clone(x);
-	get2comp(x);
-    }
+    hibitsx = abs2twocomp(&x, &xn);
     if (FIXNUM_P(y)) {
-	return bigor_int(x, FIX2LONG(y));
-    }
-    if (!RBIGNUM_SIGN(y)) {
-	y = rb_big_clone(y);
-	get2comp(y);
+	return bigor_int(x, xn, hibitsx, FIX2LONG(y));
     }
-    if (RBIGNUM_LEN(x) > RBIGNUM_LEN(y)) {
-	l1 = RBIGNUM_LEN(y);
-	l2 = RBIGNUM_LEN(x);
-	ds1 = BDIGITS(y);
-	ds2 = BDIGITS(x);
-	sign = RBIGNUM_SIGN(y);
-    }
-    else {
-	l1 = RBIGNUM_LEN(x);
-	l2 = RBIGNUM_LEN(y);
-	ds1 = BDIGITS(x);
-	ds2 = BDIGITS(y);
-	sign = RBIGNUM_SIGN(x);
+    hibitsy = abs2twocomp(&y, &yn);
+    if (xn > yn) {
+        tmpv = x; x = y; y = tmpv;
+        tmpn = xn; xn = yn; yn = tmpn;
+        tmph = hibitsx; hibitsx = hibitsy; hibitsy = tmph;
     }
-    z = bignew(l2, RBIGNUM_SIGN(x) && RBIGNUM_SIGN(y));
+    n1 = xn;
+    n2 = yn;
+    ds1 = BDIGITS(x);
+    ds2 = BDIGITS(y);
+    hibits1 = hibitsx;
+    hibits2 = hibitsy;
+
+    if (hibits1)
+        n2 = n1;
+
+    z = bignew(n2, 0);
     zds = BDIGITS(z);
 
-    for (i=0; i<l1; i++) {
+    for (i=0; i<n1; i++) {
 	zds[i] = ds1[i] | ds2[i];
     }
-    for (; i<l2; i++) {
-	zds[i] = sign?ds2[i]:(BDIGIT)(BIGRAD-1);
+    for (; i<n2; i++) {
+	zds[i] = hibits1 | ds2[i];
     }
-    if (!RBIGNUM_SIGN(z)) get2comp(z);
+    twocomp2abs_bang(z, hibits1 || hibits2);
+    RB_GC_GUARD(x);
+    RB_GC_GUARD(y);
     return bignorm(z);
 }
 
 static VALUE
-bigxor_int(VALUE x, long y)
+bigxor_int(VALUE x, long xn, BDIGIT hibitsx, long y)
 {
     VALUE z;
     BDIGIT *xds, *zds;
-    long xn, zn;
+    long zn;
     long i;
-    char sign;
+    BDIGIT hibitsy;
 
-    sign = (y >= 0) ? 1 : 0;
+    hibitsy = 0 <= y ? 0 : BDIGMAX;
     xds = BDIGITS(x);
-    zn = xn = RBIGNUM_LEN(x);
-    z = bignew(zn, !(RBIGNUM_SIGN(x) ^ sign));
+    zn = BIGNUM_LEN(x);
+#if SIZEOF_BDIGIT < SIZEOF_LONG
+    if (zn < bdigit_roomof(SIZEOF_LONG))
+        zn = bdigit_roomof(SIZEOF_LONG);
+#endif
+    z = bignew(zn, 0);
     zds = BDIGITS(z);
 
-#if SIZEOF_BDIGITS == SIZEOF_LONG
+#if SIZEOF_BDIGIT >= SIZEOF_LONG
     i = 1;
-    zds[0] = xds[0] ^ y;
+    zds[0] = xds[0] ^ BIGLO(y);
 #else
-    {
-	BDIGIT_DBL num = y;
-
-	for (i=0; i<(int)(sizeof(y)/sizeof(BDIGIT)); i++) {
-	    zds[i] = xds[i] ^ BIGLO(num);
-	    num = BIGDN(num);
-	}
+    for (i = 0; i < xn; i++) {
+        zds[i] = xds[i] ^ BIGLO(y);
+        y = BIGDN(y);
+    }
+    for (; i < zn; i++) {
+        zds[i] = hibitsx ^ BIGLO(y);
+        y = BIGDN(y);
     }
 #endif
-    while (i < xn) {
-	zds[i] = sign?xds[i]:~xds[i];
-	i++;
+    for (; i < xn; i++) {
+        zds[i] = xds[i] ^ hibitsy;
+    }
+    for (; i < zn; i++) {
+        zds[i] = hibitsx ^ hibitsy;
     }
-    if (!RBIGNUM_SIGN(z)) get2comp(z);
+    twocomp2abs_bang(z, (hibitsx ^ hibitsy) != 0);
+    RB_GC_GUARD(x);
     return bignorm(z);
 }
 /*
@@ -3467,72 +6609,53 @@ bigxor_int(VALUE x, long y)
  */
 
 VALUE
-rb_big_xor(VALUE xx, VALUE yy)
+rb_big_xor(VALUE x, VALUE y)
 {
-    volatile VALUE x, y;
     VALUE z;
     BDIGIT *ds1, *ds2, *zds;
-    long i, l1, l2;
-    char sign;
+    long i, xn, yn, n1, n2;
+    BDIGIT hibitsx, hibitsy;
+    BDIGIT hibits1, hibits2;
+    VALUE tmpv;
+    BDIGIT tmph;
+    long tmpn;
 
-    if (!FIXNUM_P(yy) && !RB_TYPE_P(yy, T_BIGNUM)) {
-	return rb_num_coerce_bit(xx, yy, '^');
+    if (!FIXNUM_P(y) && !RB_BIGNUM_TYPE_P(y)) {
+	return rb_num_coerce_bit(x, y, '^');
     }
 
-    x = xx;
-    y = yy;
-
-    if (!RBIGNUM_SIGN(x)) {
-	x = rb_big_clone(x);
-	get2comp(x);
-    }
+    hibitsx = abs2twocomp(&x, &xn);
     if (FIXNUM_P(y)) {
-	return bigxor_int(x, FIX2LONG(y));
+	return bigxor_int(x, xn, hibitsx, FIX2LONG(y));
     }
-    if (!RBIGNUM_SIGN(y)) {
-	y = rb_big_clone(y);
-	get2comp(y);
-    }
-    if (RBIGNUM_LEN(x) > RBIGNUM_LEN(y)) {
-	l1 = RBIGNUM_LEN(y);
-	l2 = RBIGNUM_LEN(x);
-	ds1 = BDIGITS(y);
-	ds2 = BDIGITS(x);
-	sign = RBIGNUM_SIGN(y);
-    }
-    else {
-	l1 = RBIGNUM_LEN(x);
-	l2 = RBIGNUM_LEN(y);
-	ds1 = BDIGITS(x);
-	ds2 = BDIGITS(y);
-	sign = RBIGNUM_SIGN(x);
-    }
-    RBIGNUM_SET_SIGN(x, RBIGNUM_SIGN(x)?1:0);
-    RBIGNUM_SET_SIGN(y, RBIGNUM_SIGN(y)?1:0);
-    z = bignew(l2, !(RBIGNUM_SIGN(x) ^ RBIGNUM_SIGN(y)));
+    hibitsy = abs2twocomp(&y, &yn);
+    if (xn > yn) {
+        tmpv = x; x = y; y = tmpv;
+        tmpn = xn; xn = yn; yn = tmpn;
+        tmph = hibitsx; hibitsx = hibitsy; hibitsy = tmph;
+    }
+    n1 = xn;
+    n2 = yn;
+    ds1 = BDIGITS(x);
+    ds2 = BDIGITS(y);
+    hibits1 = hibitsx;
+    hibits2 = hibitsy;
+
+    z = bignew(n2, 0);
     zds = BDIGITS(z);
 
-    for (i=0; i<l1; i++) {
+    for (i=0; i<n1; i++) {
 	zds[i] = ds1[i] ^ ds2[i];
     }
-    for (; i<l2; i++) {
-	zds[i] = sign?ds2[i]:~ds2[i];
+    for (; i<n2; i++) {
+	zds[i] = hibitsx ^ ds2[i];
     }
-    if (!RBIGNUM_SIGN(z)) get2comp(z);
-
+    twocomp2abs_bang(z, (hibits1 ^ hibits2) != 0);
+    RB_GC_GUARD(x);
+    RB_GC_GUARD(y);
     return bignorm(z);
 }
 
-static VALUE
-check_shiftdown(VALUE y, VALUE x)
-{
-    if (!RBIGNUM_LEN(x)) return INT2FIX(0);
-    if (RBIGNUM_LEN(y) > SIZEOF_LONG / SIZEOF_BDIGITS) {
-	return RBIGNUM_SIGN(x) ? INT2FIX(0) : INT2FIX(-1);
-    }
-    return Qnil;
-}
-
 /*
  * call-seq:
  *     big << numeric   ->  integer
@@ -3543,59 +6666,33 @@ check_shiftdown(VALUE y, VALUE x)
 VALUE
 rb_big_lshift(VALUE x, VALUE y)
 {
-    long shift;
-    int neg = 0;
+    int lshift_p;
+    size_t shift_numdigits;
+    int shift_numbits;
 
     for (;;) {
 	if (FIXNUM_P(y)) {
-	    shift = FIX2LONG(y);
-	    if (shift < 0) {
-		neg = 1;
-		shift = -shift;
+	    long l = FIX2LONG(y);
+            unsigned long shift;
+	    if (0 <= l) {
+		lshift_p = 1;
+                shift = l;
+            }
+            else {
+		lshift_p = 0;
+		shift = 1+(unsigned long)(-(l+1));
 	    }
-	    break;
+            shift_numbits = (int)(shift & (BITSPERDIG-1));
+            shift_numdigits = shift >> bit_length(BITSPERDIG-1);
+            return bignorm(big_shift3(x, lshift_p, shift_numdigits, shift_numbits));
 	}
-	else if (RB_TYPE_P(y, T_BIGNUM)) {
-	    if (!RBIGNUM_SIGN(y)) {
-		VALUE t = check_shiftdown(y, x);
-		if (!NIL_P(t)) return t;
-		neg = 1;
-	    }
-	    shift = big2ulong(y, "long", TRUE);
-	    break;
+	else if (RB_BIGNUM_TYPE_P(y)) {
+            return bignorm(big_shift2(x, 1, y));
 	}
 	y = rb_to_int(y);
     }
-
-    x = neg ? big_rshift(x, shift) : big_lshift(x, shift);
-    return bignorm(x);
 }
 
-static VALUE
-big_lshift(VALUE x, unsigned long shift)
-{
-    BDIGIT *xds, *zds;
-    long s1 = shift/BITSPERDIG;
-    int s2 = (int)(shift%BITSPERDIG);
-    VALUE z;
-    BDIGIT_DBL num = 0;
-    long len, i;
-
-    len = RBIGNUM_LEN(x);
-    z = bignew(len+s1+1, RBIGNUM_SIGN(x));
-    zds = BDIGITS(z);
-    for (i=0; i<s1; i++) {
-	*zds++ = 0;
-    }
-    xds = BDIGITS(x);
-    for (i=0; i<len; i++) {
-	num = num | (BDIGIT_DBL)*xds++<<s2;
-	*zds++ = BIGLO(num);
-	num = BIGDN(num);
-    }
-    *zds = BIGLO(num);
-    return z;
-}
 
 /*
  * call-seq:
@@ -3607,79 +6704,31 @@ big_lshift(VALUE x, unsigned long shift)
 VALUE
 rb_big_rshift(VALUE x, VALUE y)
 {
-    long shift;
-    int neg = 0;
+    int lshift_p;
+    size_t shift_numdigits;
+    int shift_numbits;
 
     for (;;) {
 	if (FIXNUM_P(y)) {
-	    shift = FIX2LONG(y);
-	    if (shift < 0) {
-		neg = 1;
-		shift = -shift;
+	    long l = FIX2LONG(y);
+            unsigned long shift;
+            if (0 <= l) {
+                lshift_p = 0;
+                shift = l;
+            }
+            else {
+                lshift_p = 1;
+		shift = 1+(unsigned long)(-(l+1));
 	    }
-	    break;
+            shift_numbits = (int)(shift & (BITSPERDIG-1));
+            shift_numdigits = shift >> bit_length(BITSPERDIG-1);
+            return bignorm(big_shift3(x, lshift_p, shift_numdigits, shift_numbits));
 	}
-	else if (RB_TYPE_P(y, T_BIGNUM)) {
-	    if (RBIGNUM_SIGN(y)) {
-		VALUE t = check_shiftdown(y, x);
-		if (!NIL_P(t)) return t;
-	    }
-	    else {
-		neg = 1;
-	    }
-	    shift = big2ulong(y, "long", TRUE);
-	    break;
+	else if (RB_BIGNUM_TYPE_P(y)) {
+            return bignorm(big_shift2(x, 0, y));
 	}
 	y = rb_to_int(y);
     }
-
-    x = neg ? big_lshift(x, shift) : big_rshift(x, shift);
-    return bignorm(x);
-}
-
-static VALUE
-big_rshift(VALUE x, unsigned long shift)
-{
-    BDIGIT *xds, *zds;
-    long s1 = shift/BITSPERDIG;
-    int s2 = (int)(shift%BITSPERDIG);
-    VALUE z;
-    BDIGIT_DBL num = 0;
-    long i, j;
-    volatile VALUE save_x;
-
-    if (s1 > RBIGNUM_LEN(x)) {
-	if (RBIGNUM_SIGN(x))
-	    return INT2FIX(0);
-	else
-	    return INT2FIX(-1);
-    }
-    if (!RBIGNUM_SIGN(x)) {
-	x = rb_big_clone(x);
-	get2comp(x);
-    }
-    save_x = x;
-    xds = BDIGITS(x);
-    i = RBIGNUM_LEN(x); j = i - s1;
-    if (j == 0) {
-	if (RBIGNUM_SIGN(x)) return INT2FIX(0);
-	else return INT2FIX(-1);
-    }
-    z = bignew(j, RBIGNUM_SIGN(x));
-    if (!RBIGNUM_SIGN(x)) {
-	num = ((BDIGIT_DBL)~0) << BITSPERDIG;
-    }
-    zds = BDIGITS(z);
-    while (i--, j--) {
-	num = (num | xds[i]) >> s2;
-	zds[j] = BIGLO(num);
-	num = BIGUP(xds[i]);
-    }
-    if (!RBIGNUM_SIGN(x)) {
-	get2comp(z);
-    }
-    RB_GC_GUARD(save_x);
-    return z;
 }
 
 /*
@@ -3705,42 +6754,45 @@ static VALUE
 rb_big_aref(VALUE x, VALUE y)
 {
     BDIGIT *xds;
-    BDIGIT_DBL num;
-    VALUE shift;
-    long i, s1, s2;
+    size_t shift;
+    size_t i, s1, s2;
+    long l;
+    BDIGIT bit;
 
-    if (RB_TYPE_P(y, T_BIGNUM)) {
-	if (!RBIGNUM_SIGN(y))
+    if (RB_BIGNUM_TYPE_P(y)) {
+	if (!BIGNUM_SIGN(y))
 	    return INT2FIX(0);
 	bigtrunc(y);
-	if (RBIGNUM_LEN(y) > DIGSPERLONG) {
+	if (BIGSIZE(y) > sizeof(size_t)) {
 	  out_of_range:
-	    return RBIGNUM_SIGN(x) ? INT2FIX(0) : INT2FIX(1);
+	    return BIGNUM_SIGN(x) ? INT2FIX(0) : INT2FIX(1);
 	}
-	shift = big2ulong(y, "long", FALSE);
+#if SIZEOF_SIZE_T <= SIZEOF_LONG
+	shift = big2ulong(y, "long");
+#else
+	shift = big2ull(y, "long long");
+#endif
     }
     else {
-	i = NUM2LONG(y);
-	if (i < 0) return INT2FIX(0);
-	shift = (VALUE)i;
+	l = NUM2LONG(y);
+	if (l < 0) return INT2FIX(0);
+	shift = (size_t)l;
     }
     s1 = shift/BITSPERDIG;
     s2 = shift%BITSPERDIG;
+    bit = (BDIGIT)1 << s2;
 
-    if (s1 >= RBIGNUM_LEN(x)) goto out_of_range;
-    if (!RBIGNUM_SIGN(x)) {
-	xds = BDIGITS(x);
-	i = 0; num = 1;
-	while (num += ~xds[i], ++i <= s1) {
-	    num = BIGDN(num);
-	}
-    }
-    else {
-	num = BDIGITS(x)[s1];
-    }
-    if (num & ((BDIGIT_DBL)1<<s2))
-	return INT2FIX(1);
-    return INT2FIX(0);
+    if (s1 >= BIGNUM_LEN(x)) goto out_of_range;
+
+    xds = BDIGITS(x);
+    if (BIGNUM_POSITIVE_P(x))
+        return (xds[s1] & bit) ? INT2FIX(1) : INT2FIX(0);
+    if (xds[s1] & (bit-1))
+        return (xds[s1] & bit) ? INT2FIX(0) : INT2FIX(1);
+    for (i = 0; i < s1; i++)
+        if (xds[i])
+            return (xds[s1] & bit) ? INT2FIX(0) : INT2FIX(1);
+    return (xds[s1] & bit) ? INT2FIX(1) : INT2FIX(0);
 }
 
 /*
@@ -3748,19 +6800,31 @@ rb_big_aref(VALUE x, VALUE y)
  *   big.hash   -> fixnum
  *
  * Compute a hash based on the value of _big_.
+ *
+ * See also Object#hash.
  */
 
-static VALUE
+VALUE
 rb_big_hash(VALUE x)
 {
     st_index_t hash;
 
-    hash = rb_memhash(BDIGITS(x), sizeof(BDIGIT)*RBIGNUM_LEN(x)) ^ RBIGNUM_SIGN(x);
+    hash = rb_memhash(BDIGITS(x), sizeof(BDIGIT)*BIGNUM_LEN(x)) ^ BIGNUM_SIGN(x);
     return INT2FIX(hash);
 }
 
 /*
- * MISSING: documentation
+ * call-seq:
+ *   big.coerce(numeric)  ->  array
+ *
+ * Returns an array with both a +numeric+ and a +big+ represented as Bignum
+ * objects.
+ *
+ * This is achieved by converting +numeric+ to a Bignum.
+ *
+ * A TypeError is raised if the +numeric+ is not a Fixnum or Bignum type.
+ *
+ *     (0x3FFFFFFFFFFFFFFF+1).coerce(42)   #=> [42, 4611686018427387904]
  */
 
 static VALUE
@@ -3769,9 +6833,9 @@ rb_big_coerce(VALUE x, VALUE y)
     if (FIXNUM_P(y)) {
 	y = rb_int2big(FIX2LONG(y));
     }
-    else if (!RB_TYPE_P(y, T_BIGNUM)) {
-	rb_raise(rb_eTypeError, "can't coerce %s to Bignum",
-		 rb_obj_classname(y));
+    else if (!RB_BIGNUM_TYPE_P(y)) {
+	rb_raise(rb_eTypeError, "can't coerce %"PRIsVALUE" to Bignum",
+		 rb_obj_class(y));
     }
     return rb_assoc_new(y, x);
 }
@@ -3779,6 +6843,7 @@ rb_big_coerce(VALUE x, VALUE y)
 /*
  *  call-seq:
  *     big.abs -> aBignum
+ *     big.magnitude -> aBignum
  *
  *  Returns the absolute value of <i>big</i>.
  *
@@ -3788,9 +6853,9 @@ rb_big_coerce(VALUE x, VALUE y)
 static VALUE
 rb_big_abs(VALUE x)
 {
-    if (!RBIGNUM_SIGN(x)) {
+    if (!BIGNUM_SIGN(x)) {
 	x = rb_big_clone(x);
-	RBIGNUM_SET_SIGN(x, 1);
+	BIGNUM_SET_SIGN(x, 1);
     }
     return x;
 }
@@ -3810,7 +6875,86 @@ rb_big_abs(VALUE x)
 static VALUE
 rb_big_size(VALUE big)
 {
-    return LONG2FIX(RBIGNUM_LEN(big)*SIZEOF_BDIGITS);
+    return SIZET2NUM(BIGSIZE(big));
+}
+
+/*
+ *  call-seq:
+ *     int.bit_length -> integer
+ *
+ *  Returns the number of bits of the value of <i>int</i>.
+ *
+ *  "the number of bits" means that
+ *  the bit position of the highest bit which is different to the sign bit.
+ *  (The bit position of the bit 2**n is n+1.)
+ *  If there is no such bit (zero or minus one), zero is returned.
+ *
+ *  I.e. This method returns ceil(log2(int < 0 ? -int : int+1)).
+ *
+ *     (-2**10000-1).bit_length  #=> 10001
+ *     (-2**10000).bit_length    #=> 10000
+ *     (-2**10000+1).bit_length  #=> 10000
+ *
+ *     (-2**1000-1).bit_length   #=> 1001
+ *     (-2**1000).bit_length     #=> 1000
+ *     (-2**1000+1).bit_length   #=> 1000
+ *
+ *     (2**1000-1).bit_length    #=> 1000
+ *     (2**1000).bit_length      #=> 1001
+ *     (2**1000+1).bit_length    #=> 1001
+ *
+ *     (2**10000-1).bit_length   #=> 10000
+ *     (2**10000).bit_length     #=> 10001
+ *     (2**10000+1).bit_length   #=> 10001
+ *
+ *  This method can be used to detect overflow in Array#pack as follows.
+ *
+ *     if n.bit_length < 32
+ *       [n].pack("l") # no overflow
+ *     else
+ *       raise "overflow"
+ *     end
+ */
+
+static VALUE
+rb_big_bit_length(VALUE big)
+{
+    int nlz_bits;
+    size_t numbytes;
+
+    static const BDIGIT char_bit[1] = { CHAR_BIT };
+    BDIGIT numbytes_bary[bdigit_roomof(sizeof(size_t))];
+    BDIGIT nlz_bary[1];
+    BDIGIT result_bary[bdigit_roomof(sizeof(size_t)+1)];
+
+    numbytes = rb_absint_size(big, &nlz_bits);
+
+    if (numbytes == 0)
+        return LONG2FIX(0);
+
+    if (BIGNUM_NEGATIVE_P(big) && rb_absint_singlebit_p(big)) {
+        if (nlz_bits != CHAR_BIT-1) {
+            nlz_bits++;
+        }
+        else {
+            nlz_bits = 0;
+            numbytes--;
+        }
+    }
+
+    if (numbytes <= SIZE_MAX / CHAR_BIT) {
+        return SIZET2NUM(numbytes * CHAR_BIT - nlz_bits);
+    }
+
+    nlz_bary[0] = nlz_bits;
+
+    bary_unpack(BARY_ARGS(numbytes_bary), &numbytes, 1, sizeof(numbytes), 0,
+            INTEGER_PACK_NATIVE_BYTE_ORDER);
+    BARY_SHORT_MUL(result_bary, numbytes_bary, char_bit);
+    BARY_SUB(result_bary, result_bary, nlz_bary);
+
+    return rb_integer_unpack(result_bary, numberof(result_bary), sizeof(BDIGIT), 0,
+            INTEGER_PACK_LSWORD_FIRST|INTEGER_PACK_NATIVE_BYTE_ORDER);
 }
 
 /*
@@ -3823,7 +6967,7 @@ rb_big_size(VALUE big)
 static VALUE
 rb_big_odd_p(VALUE num)
 {
-    if (BDIGITS(num)[0] & 1) {
+    if (BIGNUM_LEN(num) != 0 && BDIGITS(num)[0] & 1) {
 	return Qtrue;
     }
     return Qfalse;
@@ -3839,7 +6983,7 @@ rb_big_odd_p(VALUE num)
 static VALUE
 rb_big_even_p(VALUE num)
 {
-    if (BDIGITS(num)[0] & 1) {
+    if (BIGNUM_LEN(num) != 0 && BDIGITS(num)[0] & 1) {
 	return Qfalse;
     }
     return Qtrue;
@@ -3904,11 +7048,14 @@ Init_Bignum(void)
     rb_define_method(rb_cBignum, "abs", rb_big_abs, 0);
     rb_define_method(rb_cBignum, "magnitude", rb_big_abs, 0);
     rb_define_method(rb_cBignum, "size", rb_big_size, 0);
+    rb_define_method(rb_cBignum, "bit_length", rb_big_bit_length, 0);
     rb_define_method(rb_cBignum, "odd?", rb_big_odd_p, 0);
     rb_define_method(rb_cBignum, "even?", rb_big_even_p, 0);
 
-    power_cache_init();
+#ifdef USE_GMP
+    /* The version of loaded GMP. */
+    rb_define_const(rb_cBignum, "GMP_VERSION", rb_sprintf("GMP %s", gmp_version));
+#endif
 
-    big_three = rb_uint2big(3);
-    rb_gc_register_mark_object(big_three);
+    power_cache_init();
 }
diff --git a/bin/erb b/bin/erb
index 6b92ac2284..6a88c3b26a 100755
--- a/bin/erb
+++ b/bin/erb
@@ -11,7 +11,8 @@ class ERB
       return nil if self.empty?
       arg = self.shift
       return nil if arg == '--'
-      if arg =~ /^-(.)(.*)/
+      case arg
+      when /\A-(.)(.*)/
         if $1 == '-'
           arg, @maybe_arg = arg.split(/=/, 2)
           return arg
@@ -24,6 +25,8 @@ class ERB
           @maybe_arg = nil
         end
         "-#{$1}"
+      when /\A(\w+)=/
+        arg
       else
         self.unshift arg
         nil
@@ -54,6 +57,7 @@ class ERB
     def run(factory=ERB)
       trim_mode = 0
       disable_percent = false
+      variables = {}
       begin
         while switch = ARGV.switch
           case switch
@@ -72,7 +76,7 @@ class ERB
             require ARGV.req_arg
           when '-S'                        # security level
             arg = ARGV.req_arg
-            raise "invalid safe_level #{arg.dump}" unless arg =~ /^[0-4]$/
+            raise "invalid safe_level #{arg.dump}" unless arg =~ /\A[0-1]\z/
             safe_level = arg.to_i
           when '-T'                        # trim mode
             arg = ARGV.req_arg
@@ -80,7 +84,7 @@ class ERB
               trim_mode = arg
               next
             end
-            raise "invalid trim mode #{arg.dump}" unless arg =~ /^[0-2]$/
+            raise "invalid trim mode #{arg.dump}" unless arg =~ /\A[0-2]\z/
             trim_mode = arg.to_i
           when '-E', '--encoding'
             arg = ARGV.req_arg
@@ -91,25 +95,29 @@ class ERB
             disable_percent = true
           when '--help'
             raise "print this help"
-          else
+          when /\A-/
             raise "unknown switch #{switch.dump}"
+          else
+            var, val = *switch.split('=', 2)
+            (variables ||= {})[var] = val
           end
         end
       rescue                               # usage
         STDERR.puts $!.to_s
         STDERR.puts File.basename($0) +
-          " [switches] [inputfile]"
+          " [switches] [var=value...] [inputfile]"
         STDERR.puts <<EOU
   -x               print ruby script
   -n               print ruby script with line number
   -v               enable verbose mode
   -d               set $DEBUG to true
   -r library       load a library
-  -S safe_level    set $SAFE (0..4)
+  -S safe_level    set $SAFE (0..1)
   -E ex[:in]       set default external/internal encodings
   -U               set default encoding to UTF-8.
   -T trim_mode     specify trim_mode (0..2, -)
   -P               ignore lines which start with "%"
+  var=value        set variable
 EOU
         exit 1
       end
@@ -130,15 +138,23 @@ EOU
           puts erb.src
         end
       else
-        erb.run(TOPLEVEL_BINDING.taint)
+        bind = TOPLEVEL_BINDING.taint
+        if variables
+          enc = erb.encoding
+          for var, val in variables do
+            val = val.encode(enc) if val
+            bind.local_variable_set(var, val)
+          end
+        end
+        erb.run(bind)
       end
     end
     module_function :run
 
     def set_encoding(extern, intern = nil)
       verbose, $VERBOSE = $VERBOSE, nil
-      Encoding.default_external = extern unless extern.nil? || extern.empty?
-      Encoding.default_internal = intern unless intern.nil? || intern.empty?
+      Encoding.default_external = extern unless extern.nil? || extern == ""
+      Encoding.default_internal = intern unless intern.nil? || intern == ""
       [$stdin, $stdout, $stderr].each do |io|
         io.set_encoding(extern, intern)
       end
diff --git a/bin/irb b/bin/irb
index 6c8465c802..c64ee85fbd 100755
--- a/bin/irb
+++ b/bin/irb
@@ -8,13 +8,4 @@
 
 require "irb"
 
-if __FILE__ == $0
-  IRB.start(__FILE__)
-else
-  # check -e option
-  if /^-e$/ =~ $0
-    IRB.start(__FILE__)
-  else
-    IRB.setup(__FILE__)
-  end
-end
+IRB.start(__FILE__)
diff --git a/bin/rake b/bin/rake
deleted file mode 100755
index 6aad2f0df3..0000000000
--- a/bin/rake
+++ /dev/null
@@ -1,37 +0,0 @@
-#!/usr/bin/env ruby
-
-#--
-# Copyright (c) 2003, 2004, 2005, 2006, 2007  Jim Weirich
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#++
-
-begin
-  require 'rubygems'
-  gem 'rake'
-rescue LoadError
-end
-
-module Rake
-  REDUCE_COMPAT = true if ARGV.include?("--reduce-compat")
-end
-
-require 'rake'
-
-Rake.application.run
diff --git a/bin/testrb b/bin/testrb
deleted file mode 100755
index 23a00b439f..0000000000
--- a/bin/testrb
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/usr/bin/env ruby
-require 'test/unit'
-exit Test::Unit::AutoRunner.run(true)
diff --git a/bootstraptest/runner.rb b/bootstraptest/runner.rb
index 75e255428a..5eb468a338 100755
--- a/bootstraptest/runner.rb
+++ b/bootstraptest/runner.rb
@@ -136,13 +136,18 @@ End
   @tty &&= !@verbose
   if @color
     # dircolors-like style
-    colors = (colors = ENV['TEST_COLORS']) ? Hash[colors.scan(/(\w+)=([^:]*)/)] : {}
-    @passed = "\e[#{colors["pass"] || "32"}m"
-    @failed = "\e[#{colors["fail"] || "31"}m"
+    colors = (colors = ENV['TEST_COLORS']) ? Hash[colors.scan(/(\w+)=([^:\n]*)/)] : {}
+    begin
+      File.read(File.join(__dir__, "../test/colors")).scan(/(\w+)=([^:\n]*)/) do |n, c|
+        colors[n] ||= c
+      end
+    rescue
+    end
+    @passed = "\e[;#{colors["pass"] || "32"}m"
+    @failed = "\e[;#{colors["fail"] || "31"}m"
     @reset = "\e[m"
-    @erase = "\r\e[2K\r"
   else
-    @passed = @failed = @reset = @erase = ""
+    @passed = @failed = @reset = ""
   end
   unless quiet
     puts Time.now
@@ -163,28 +168,44 @@ End
   }
 end
 
+def erase(e = true)
+  if e and @columns > 0 and !@verbose
+    "\r#{" "*@columns}\r"
+  else
+    ""
+  end
+end
+
 def exec_test(pathes)
   @count = 0
   @error = 0
   @errbuf = []
   @location = nil
+  @columns = 0
+  @width = pathes.map {|path| File.basename(path).size}.max + 2
   pathes.each do |path|
     @basename = File.basename(path)
-    $stderr.print @basename, " "
+    $stderr.printf("%s%-*s ", erase(@quiet), @width, @basename)
+    $stderr.flush
+    @columns = @width + 1
     $stderr.puts if @verbose
     count = @count
     error = @error
     load File.expand_path(path)
     if @tty
       if @error == error
-        $stderr.print "#{@progress_bs}#{@passed}PASS #{@count-count}#{@reset}"
-        $stderr.print @erase if @quiet
+        msg = "PASS #{@count-count}"
+        @columns += msg.size - 1
+        $stderr.print "#{@progress_bs}#{@passed}#{msg}#{@reset}"
       else
-        $stderr.print "#{@progress_bs}#{@failed}FAIL #{@error-error}/#{@count-count}#{@reset}"
+        msg = "FAIL #{@error-error}/#{@count-count}"
+        $stderr.print "#{@progress_bs}#{@failed}#{msg}#{@reset}"
+        @columns = 0
       end
     end
-    $stderr.puts unless @quiet and @tty
+    $stderr.puts unless @quiet and @tty and @error == error
   end
+  $stderr.print(erase) if @quiet
   if @error == 0
     if @count == 0
       $stderr.puts "No tests, no problem"
@@ -207,23 +228,28 @@ def show_progress(message = '')
   elsif @tty
     $stderr.print "#{@progress_bs}#{@progress[@count % @progress.size]}"
   end
+  t = Time.now if @verbose
   faildesc, errout = with_stderr {yield}
+  t = Time.now - t if @verbose
   if !faildesc
     if @tty
       $stderr.print "#{@progress_bs}#{@progress[@count % @progress.size]}"
+    elsif @verbose
+      $stderr.printf(". %.3f\n", t)
     else
       $stderr.print '.'
     end
-    $stderr.puts if @verbose
   else
-    $stderr.print "#{@failed}F#{@reset}"
+    $stderr.print "#{@failed}F"
+    $stderr.printf(" %.3f", t) if @verbose
+    $stderr.print "#{@reset}"
     $stderr.puts if @verbose
     error faildesc, message
     unless errout.empty?
       $stderr.print "#{@failed}stderr output is not empty#{@reset}\n", adjust_indent(errout)
     end
     if @tty and !@verbose
-      $stderr.print @basename, " ", @progress[@count % @progress.size]
+      $stderr.printf("%-*s%s", @width, @basename, @progress[@count % @progress.size])
     end
   end
 rescue Interrupt
@@ -321,7 +347,7 @@ def assert_normal_exit(testsrc, *rest)
       $stderr.reopen(old_stderr)
       old_stderr.close
     end
-    if status.signaled?
+    if status&.signaled?
       signo = status.termsig
       signame = Signal.list.invert[signo]
       unless ignore_signals and ignore_signals.include?(signame)
@@ -385,7 +411,7 @@ end
 INDENT = 27
 
 def adjust_indent(src)
-  untabify(src).gsub(/^ {#{INDENT}}/o, '').gsub(/^/, '   ')
+  untabify(src).gsub(/^ {#{INDENT}}/o, '').gsub(/^/, '   ').sub(/\s*\z/, "\n")
 end
 
 def untabify(str)
@@ -407,7 +433,7 @@ def get_result_string(src, opt = '')
     begin
       `#{@ruby} -W0 #{opt} #{filename}`
     ensure
-      raise Interrupt if $?.signaled? && $?.termsig == Signal.list["INT"]
+      raise Interrupt if $? and $?.signaled? && $?.termsig == Signal.list["INT"]
       raise CoreDumpError, "core dumped" if $? and $?.coredump?
     end
   else
@@ -445,7 +471,7 @@ end
 def error(msg, additional_message)
   msg = "#{@failed}\##{@count} #{@location}#{@reset}: #{msg}  #{additional_message}"
   if @tty
-    $stderr.puts "#{@erase}#{msg}"
+    $stderr.puts "#{erase}#{msg}"
   else
     @errbuf.push msg
   end
diff --git a/bootstraptest/test_autoload.rb b/bootstraptest/test_autoload.rb
index e8df6684b6..a9f8e6dacd 100644
--- a/bootstraptest/test_autoload.rb
+++ b/bootstraptest/test_autoload.rb
@@ -43,46 +43,6 @@ assert_equal 'ok', %q{
   ZZZ.ok
 }
 
-assert_equal 'ok', %q{
-  open("zzz.rb", "w") {|f| f.puts "class ZZZ; def self.ok;:ok;end;end"}
-  autoload :ZZZ, "./zzz.rb"
-  proc{$SAFE=4; ZZZ.ok}.call
-}
-
-assert_equal 'ok', %q{
-  open("zzz.rb", "w") {|f| f.puts "class ZZZ; def self.ok;:ok;end;end"}
-  autoload :ZZZ, "./zzz.rb"
-  require "./zzz.rb"
-  proc{$SAFE=4; ZZZ.ok}.call
-}
-
-assert_equal 'ok', %q{
-  open("zzz.rb", "w") {|f| f.puts "class ZZZ; def hoge;:ok;end;end"}
-  autoload :ZZZ, File.join(Dir.pwd, 'zzz.rb')
-  module M; end
-  Thread.new{M.instance_eval('$SAFE=4; ZZZ.new.hoge')}.value
-}
-
-assert_equal 'ok', %q{
-  open("zzz.rb", "w") {|f| f.puts "class ZZZ; def hoge;:ok;end;end"}
-  autoload :ZZZ, File.join(Dir.pwd, 'zzz.rb')
-  module M; end
-  Thread.new{$SAFE=4; M.instance_eval('ZZZ.new.hoge')}.value
-}
-
-assert_equal 'ok', %q{
-  open("zzz.rb", "w") {|f| f.puts "class ZZZ; def hoge;:ok;end;end"}
-  autoload :ZZZ, File.join(Dir.pwd, 'zzz.rb')
-  Thread.new{$SAFE=4; eval('ZZZ.new.hoge')}.value
-}
-
-assert_equal 'ok', %q{
-  open("zzz.rb", "w") {|f| f.puts "class ZZZ; def hoge;:ok;end;end"}
-  autoload :ZZZ, File.join(Dir.pwd, 'zzz.rb')
-  module M; end
-  Thread.new{eval('$SAFE=4; ZZZ.new.hoge')}.value
-}
-
 assert_equal 'okok', %q{
   open("zzz.rb", "w") {|f| f.puts "class ZZZ; def self.ok;:ok;end;end"}
   autoload :ZZZ, "./zzz.rb"
diff --git a/bootstraptest/test_block.rb b/bootstraptest/test_block.rb
index 6a2ccfc6da..cdc5960a59 100644
--- a/bootstraptest/test_block.rb
+++ b/bootstraptest/test_block.rb
@@ -597,3 +597,17 @@ assert_equal 'true', %q{
   C1.new.foo{}
 }
 
+assert_equal 'ok', %q{
+  1.times do
+    begin
+      raise
+    rescue
+      begin
+        raise
+      rescue
+        break
+      end
+    end
+  end
+  'ok'
+}
diff --git a/bootstraptest/test_class.rb b/bootstraptest/test_class.rb
index 664dd2f166..b7fe0a1acd 100644
--- a/bootstraptest/test_class.rb
+++ b/bootstraptest/test_class.rb
@@ -11,6 +11,16 @@ assert_equal 'C',       %q( class C; end
                             C.new.class.name )
 assert_equal 'Class',   %q( class C; end
                             C.new.class.class )
+assert_equal 'true',    %q( Object.__send__(:remove_const, :TrueClass)
+                            GC.start
+                            true.inspect)
+assert_equal 'false',   %q( Object.__send__(:remove_const, :FalseClass)
+                            GC.start
+                            false.inspect)
+assert_equal 'nil',     %q( Object.__send__(:remove_const, :NilClass)
+                            GC.start
+                            nil.inspect)
+
 
 # inherited class
 assert_equal 'true',    %q( class A; end
diff --git a/bootstraptest/test_fork.rb b/bootstraptest/test_fork.rb
index 384294727f..1cd9f7ac6c 100644
--- a/bootstraptest/test_fork.rb
+++ b/bootstraptest/test_fork.rb
@@ -22,26 +22,32 @@ assert_finish 10, %q{
 }, '[ruby-core:22158]'
 
 assert_normal_exit(<<'End', '[ruby-dev:37934]')
-  Thread.new { sleep 1; Thread.kill Thread.main }
-  Process.setrlimit(:NPROC, 1)
+  main = Thread.current
+  Thread.new { sleep 0.01 until main.stop?; Thread.kill main }
+  Process.setrlimit(:NPROC, 1) if defined?(Process::RLIMIT_NPROC)
   fork {}
 End
 
 assert_equal 'ok', %q{
   begin
+    r, w = IO.pipe
     if pid1 = fork
-      sleep 1
+      w.close
+      r.read(1)
       Process.kill("USR1", pid1)
       _, s = Process.wait2(pid1)
       s.success? ? :ok : :ng
     else
+      r.close
       if pid2 = fork
-        trap("USR1") { Time.now.to_s }
+        trap("USR1") { Time.now.to_s; Process.kill("USR2", pid2) }
+        w.close
         Process.wait2(pid2)
       else
-        sleep 2
+        w.close
+        sleep 0.2
       end
-      exit 0
+      exit true
     end
   rescue NotImplementedError
     :ok
@@ -50,17 +56,17 @@ assert_equal 'ok', %q{
 
 assert_equal '[1, 2]', %q{
   a = []
-  trap(:INT) { a.push(1) }
-  trap(:TERM) { a.push(2) }
+  main = Thread.current
+  trap(:INT) { a.push(1).size == 2 and main.wakeup }
+  trap(:TERM) { a.push(2).size == 2 and main.wakeup }
   pid = $$
   begin
-    fork do
-      sleep 0.5
+    pid = fork do
       Process.kill(:INT, pid)
       Process.kill(:TERM, pid)
     end
-
-    sleep 1
+    Process.wait(pid)
+    100.times {break if a.size > 1; sleep 0.001}
     a.sort
   rescue NotImplementedError
     [1, 2]
diff --git a/bootstraptest/test_io.rb b/bootstraptest/test_io.rb
index f7360f34b3..1d2b19368a 100644
--- a/bootstraptest/test_io.rb
+++ b/bootstraptest/test_io.rb
@@ -2,9 +2,8 @@ assert_finish 5, %q{
   r, w = IO.pipe
   t1 = Thread.new { r.sysread(1) }
   t2 = Thread.new { r.sysread(1) }
-  sleep 0.1
+  sleep 0.01 until t1.stop? and t2.stop?
   w.write "a"
-  sleep 0.1
   w.write "a"
 }, '[ruby-dev:31866]'
 
@@ -27,16 +26,16 @@ assert_finish 10, %q{
       t1.join
       t2.join
     end
-  rescue LoadError, TimeoutError, NotImplementedError
+  rescue LoadError, Timeout::Error, NotImplementedError
   end
 }, '[ruby-dev:32566]'
 
 assert_finish 1, %q{
   r, w = IO.pipe
   Thread.new {
-  w << "ab"
-  sleep 0.1
-  w << "ab"
+    w << "ab"
+    sleep 0.01
+    w << "ab"
   }
   r.gets("abab")
 }
@@ -91,7 +90,8 @@ assert_normal_exit %q{
     megacontent = "abc" * 12345678
     #File.open("megasrc", "w") {|f| f << megacontent }
 
-    Thread.new { sleep rand*0.2; Process.kill(:INT, $$) }
+    t0 = Thread.main
+    Thread.new { sleep 0.001 until t0.stop?; Process.kill(:INT, $$) }
 
     r1, w1 = IO.pipe
     r2, w2 = IO.pipe
diff --git a/bootstraptest/test_literal.rb b/bootstraptest/test_literal.rb
index b95a2f2d0a..aa65bddae1 100644
--- a/bootstraptest/test_literal.rb
+++ b/bootstraptest/test_literal.rb
@@ -84,7 +84,7 @@ assert_equal '0',               're = /test/; re =~ "test"'
 assert_equal '0',               'str = "test"; /test/ =~ str'
 assert_equal '0',               're = /test/; str = "test"; re =~ str'
 
-# dynacmi regexp
+# dynamic regexp
 assert_equal 'regexp',          %q(/re#{'ge'}xp/.source)
 assert_equal 'Regexp',          %q(/re#{'ge'}xp/.class)
 
diff --git a/bootstraptest/test_literal_suffix.rb b/bootstraptest/test_literal_suffix.rb
new file mode 100644
index 0000000000..4316c9e040
--- /dev/null
+++ b/bootstraptest/test_literal_suffix.rb
@@ -0,0 +1,54 @@
+# numbers with suffix
+assert_equal '0/1',             '0r'
+assert_equal 'Rational',        '0r.class'
+assert_equal '1/1',             '1r'
+assert_equal 'Rational',        '1r.class'
+assert_equal '-1/1',            '-1r'
+assert_equal 'Rational',        '(-1r).class'
+assert_equal '1/1',             '0x1r'
+assert_equal 'Rational',        '0x1r.class'
+assert_equal '1/1',             '0b1r'
+assert_equal 'Rational',        '0b1r.class'
+assert_equal '1/1',             '0d1r'
+assert_equal 'Rational',        '0d1r.class'
+assert_equal '1/1',             '0o1r'
+assert_equal 'Rational',        '0o1r.class'
+assert_equal '1/1',             '01r'
+assert_equal 'Rational',        '01r.class'
+assert_equal '6/5',             '1.2r'
+assert_equal 'Rational',        '1.2r.class'
+assert_equal '-6/5',            '-1.2r'
+assert_equal 'Rational',        '(-1.2r).class'
+assert_equal '0+0i',            '0i'
+assert_equal 'Complex',         '0i.class'
+assert_equal '0+1i',            '1i'
+assert_equal 'Complex',         '1i.class'
+assert_equal '0+1i',            '0x1i'
+assert_equal 'Complex',         '0x1i.class'
+assert_equal '0+1i',            '0b1i'
+assert_equal 'Complex',         '0b1i.class'
+assert_equal '0+1i',            '0d1i'
+assert_equal 'Complex',         '0d1i.class'
+assert_equal '0+1i',            '0o1i'
+assert_equal 'Complex',         '0o1i.class'
+assert_equal '0+1i',            '01i'
+assert_equal 'Complex',         '01i.class'
+assert_equal '0+1.2i',          '1.2i'
+assert_equal 'Complex',         '1.2i.class'
+assert_equal '0+1/1i',          '1ri'
+assert_equal 'Complex',         '1ri.class'
+assert_equal '0+6/5i',          '1.2ri'
+assert_equal 'Complex',         '1.2ri.class'
+assert_equal '0+10.0i',         '1e1i'
+assert_equal 'Complex',         '1e1i.class'
+assert_equal '1',               '1if true'
+assert_equal '1',               '1rescue nil'
+assert_equal '10000000000000000001/10000000000000000000',
+             '1.0000000000000000001r'
+
+assert_equal 'syntax error, unexpected tIDENTIFIER, expecting end-of-input',
+             %q{begin eval('1ir', nil, '', 0); rescue SyntaxError => e; e.message[/\A:(?:\d+:)? (.*)/, 1] end}
+assert_equal 'syntax error, unexpected tIDENTIFIER, expecting end-of-input',
+             %q{begin eval('1.2ir', nil, '', 0); rescue SyntaxError => e; e.message[/\A:(?:\d+:)? (.*)/, 1] end}
+assert_equal 'syntax error, unexpected tIDENTIFIER, expecting end-of-input',
+             %q{begin eval('1e1r', nil, '', 0); rescue SyntaxError => e; e.message[/\A:(?:\d+:)? (.*)/, 1] end}
diff --git a/bootstraptest/test_method.rb b/bootstraptest/test_method.rb
index ed22608aea..3462aa9434 100644
--- a/bootstraptest/test_method.rb
+++ b/bootstraptest/test_method.rb
@@ -3,7 +3,7 @@ assert_equal '1',       'def m() 1 end; m()'
 assert_equal '1',       'def m(a) a end; m(1)'
 assert_equal '[1, 2]',  'def m(a,b) [a, b] end; m(1,2)'
 assert_equal '[1, 2, 3]', 'def m(a,b,c) [a, b, c] end; m(1,2,3)'
-assert_equal 'wrong number of arguments (1 for 0)', %q{
+assert_match /\Awrong number of arguments \(.*\b1\b.* 0\)\z/, %q{
   def m; end
   begin
     m(1)
@@ -12,7 +12,7 @@ assert_equal 'wrong number of arguments (1 for 0)', %q{
   end
 }
 
-assert_equal 'wrong number of arguments (0 for 1)', %q{
+assert_match /\Awrong number of arguments \(.*\b0\b.* 1\)\z/, %q{
   def m a; end
   begin
     m
@@ -886,50 +886,6 @@ class C0; def m *args; [:C0_m, args]; end; end
 class C1 < C0; def m a, o=:o; super; end; end
 ; C1.new.m 1, 2}
 
-assert_equal %q{[:ok, :ok, :ok, :ok, :ok, :ok, :ng, :ng]}, %q{
-  $ans = []
-  class Foo
-    def m
-    end
-  end
-
-  c1 = c2 = nil
-
-  lambda{
-    $SAFE = 4
-    c1 = Class.new{
-      def m
-      end
-    }
-    c2 = Class.new(Foo){
-      alias mm m
-    }
-  }.call
-
-  def test
-    begin
-      yield
-    rescue SecurityError
-      $ans << :ok
-    else
-      $ans << :ng
-    end
-  end
-
-  o1 = c1.new
-  o2 = c2.new
-
-  test{o1.m}
-  test{o2.mm}
-  test{o1.send :m}
-  test{o2.send :mm}
-  test{o1.public_send :m}
-  test{o2.public_send :mm}
-  test{o1.method(:m).call}
-  test{o2.method(:mm).call}
-  $ans
-}
-
 assert_equal 'ok', %q{
   class C
     def x=(n)
@@ -954,34 +910,6 @@ assert_equal 'ok', %q{
 }, '[ruby-core:11998]'
 
 assert_equal 'ok', %q{
-  proc{
-    $SAFE = 2
-    class C
-      def m
-        :ok
-      end
-    end
-  }.call
-  C.new.m
-}, '[ruby-core:11998]'
-
-assert_equal 'ok', %q{
-  proc{
-    $SAFE = 3
-    class C
-      def m
-        :ng
-      end
-    end
-  }.call
-  begin
-    C.new.m
-  rescue SecurityError
-    :ok
-  end
-}, '[ruby-core:11998]'
-
-assert_equal 'ok', %q{
   class B
     def m() :fail end
   end
@@ -1001,8 +929,8 @@ assert_equal 'ok', %q{
 
 assert_normal_exit %q{
   begin
-    Process.setrlimit(Process::RLIMIT_STACK, 4_202_496)
-    # FreeBSD fails this less than 4M + 8K bytes.
+    Process.setrlimit(Process::RLIMIT_STACK, 4_206_592)
+    # FreeBSD SEGVs this less than 4M + 12K bytes.
   rescue Exception
     exit
   end
diff --git a/bootstraptest/test_string.rb b/bootstraptest/test_string.rb
new file mode 100644
index 0000000000..849dcd45b0
--- /dev/null
+++ b/bootstraptest/test_string.rb
@@ -0,0 +1,3 @@
+assert_normal_exit %q{
+  inspect.clear
+}, '[ruby-core:68110]'
diff --git a/bootstraptest/test_syntax.rb b/bootstraptest/test_syntax.rb
index 80eaa6416d..a111990a1f 100644
--- a/bootstraptest/test_syntax.rb
+++ b/bootstraptest/test_syntax.rb
@@ -376,6 +376,8 @@ assert_equal %q{1}, %q{1 or 2 or 3 or 4}
 assert_equal %q{1}, %q{1 or false or 3 or 4}
 assert_equal %q{2}, %q{nil or 2 or 3 or 4}
 assert_equal %q{2}, %q{false or 2 or 3 or 4}
+assert_equal %q{1}, %q{if true && ""; then 1; end}
+assert_equal %q{1}, %q{if nil || true; then 1; end}
 assert_equal %q{false}, %q{nil or false or nil or false}
 assert_equal %q{elseng}, %q{
   case
diff --git a/bootstraptest/test_thread.rb b/bootstraptest/test_thread.rb
index 121def8b42..d64f44be49 100644
--- a/bootstraptest/test_thread.rb
+++ b/bootstraptest/test_thread.rb
@@ -10,7 +10,8 @@ assert_equal %q{ok}, %q{
     :ok
   }.value
 }
-assert_equal %q{20100}, %q{
+assert_equal %q{ok}, %q{
+begin
   v = 0
   (1..200).map{|i|
     Thread.new{
@@ -19,7 +20,10 @@ assert_equal %q{20100}, %q{
   }.each{|t|
     v += t.value
   }
-  v
+  v == 20100 ? :ok : v
+rescue ThreadError => e
+  :ok if /can't create Thread/ =~ e.message
+end
 }
 assert_equal %q{5000}, %q{
   5000.times{|e|
@@ -41,13 +45,17 @@ assert_equal %q{5000}, %q{
     }
   }
 }
-assert_equal %q{5000}, %q{
-  5000.times{
+assert_equal %q{ok}, %q{
+begin
+  :ok if 5000 == 5000.times{
     t = Thread.new{}
     while t.alive?
       Thread.pass
     end
   }
+rescue NoMemoryError
+  :ok
+end
 }
 assert_equal %q{100}, %q{
   100.times{
@@ -77,7 +85,7 @@ assert_equal %q{ok}, %q{
       ans = :ok
     end
   }
-  Thread.pass
+  Thread.pass until t.stop?
   t.kill
   t.join
   ans
@@ -233,16 +241,16 @@ assert_equal 'ok', %{
 }
 
 assert_finish 3, %{
-  th = Thread.new {sleep 2}
-  th.join(1)
+  th = Thread.new {sleep 0.2}
+  th.join(0.1)
   th.join
 }
 
 assert_finish 3, %{
   require 'timeout'
-  th = Thread.new {sleep 2}
+  th = Thread.new {sleep 0.2}
   begin
-    Timeout.timeout(1) {th.join}
+    Timeout.timeout(0.1) {th.join}
   rescue Timeout::Error
   end
   th.join
@@ -268,7 +276,7 @@ assert_normal_exit %q{
 assert_equal 'ok', %q{
   def m
     t = Thread.new { while true; // =~ "" end }
-    sleep 0.1
+    sleep 0.01
     10.times {
       if /((ab)*(ab)*)*(b)/ =~ "ab"*7
         return :ng if !$4
@@ -332,8 +340,9 @@ assert_equal 'ok', %q{
 assert_equal 'ok', %q{
   begin
     m1, m2 = Mutex.new, Mutex.new
-    Thread.new { m1.lock; sleep 1; m2.lock }
-    m2.lock; sleep 1; m1.lock
+    f1 = f2 = false
+    Thread.new { m1.lock; f2 = true; sleep 0.001 until f1; m2.lock }
+    m2.lock; f1 = true; sleep 0.001 until f2; m1.lock
     :ng
   rescue Exception
     :ok
@@ -342,7 +351,7 @@ assert_equal 'ok', %q{
 
 assert_equal 'ok', %q{
   m = Mutex.new
-  Thread.new { m.lock }; sleep 1; m.lock
+  Thread.new { m.lock }; sleep 0.1; m.lock
   :ok
 }
 
@@ -360,15 +369,15 @@ assert_equal 'ok', %q{
 
 assert_equal 'ok', %q{
   m = Mutex.new
-  Thread.new { m.lock; sleep 2 }
-  sleep 1; m.lock
+  Thread.new { m.lock; sleep 0.2 }
+  sleep 0.1; m.lock
   :ok
 }
 
 assert_equal 'ok', %q{
   m = Mutex.new
-  Thread.new { m.lock; sleep 2; m.unlock }
-  sleep 1; m.lock
+  Thread.new { m.lock; sleep 0.2; m.unlock }
+  sleep 0.1; m.lock
   :ok
 }
 
@@ -390,19 +399,20 @@ assert_equal 'ok', %q{
 
 assert_equal 'ok', %{
   open("zzz.rb", "w") do |f|
-    f.puts <<-END
+    f.puts <<-'end;' # do
       begin
         m = Mutex.new
-        Thread.new { m.lock; sleep 1 }
-        sleep 0.3
         parent = Thread.current
+        th1 = Thread.new { m.lock; sleep }
+        sleep 0.01 until th1.stop?
         Thread.new do
-          sleep 0.3
+          sleep 0.01 until parent.stop?
           begin
             fork { GC.start }
           rescue Exception
             parent.raise $!
           end
+          th1.run
         end
         m.lock
         pid, status = Process.wait2
@@ -410,7 +420,7 @@ assert_equal 'ok', %{
       rescue NotImplementedError
         $result = :ok
       end
-    END
+    end;
   end
   require "./zzz.rb"
   $result
@@ -440,17 +450,27 @@ assert_finish 3, %q{
 
 assert_equal 'ok', %q{
   begin
-    Process.waitpid2(fork {sleep 1})[1].success? ? 'ok' : 'ng'
+    Process.waitpid2(fork {})[1].success? ? 'ok' : 'ng'
   rescue NotImplementedError
     'ok'
   end
 }
 
 assert_equal 'foo', %q{
-  f = proc {|s| /#{ sleep 1; s }/o }
-  [ Thread.new {            f.call("foo"); nil },
-    Thread.new { sleep 0.5; f.call("bar"); nil },
-  ].each {|t| t.join }
+  i = 0
+  Thread.start {sleep 1; exit!}
+  f = proc {|s, c| /#{c.call; s}/o }
+  th2 = Thread.new {
+    sleep 0.01 until i == 1
+    i = 2
+    f.call("bar", proc {sleep 2});
+    nil
+  }
+  th1 = Thread.new {
+    f.call("foo", proc {i = 1; sleep 0.01 until i == 2; sleep 0.01})
+    nil
+  }
+  [th1, th2].each {|t| t.join }
   GC.start
   f.call.source
 }
diff --git a/ccan/build_assert/build_assert.h b/ccan/build_assert/build_assert.h
new file mode 100644
index 0000000000..a04d1d4709
--- /dev/null
+++ b/ccan/build_assert/build_assert.h
@@ -0,0 +1,40 @@
+/* CC0 (Public domain) - see ccan/licenses/CC0 file for details */
+#ifndef CCAN_BUILD_ASSERT_H
+#define CCAN_BUILD_ASSERT_H
+
+/**
+ * BUILD_ASSERT - assert a build-time dependency.
+ * @cond: the compile-time condition which must be true.
+ *
+ * Your compile will fail if the condition isn't true, or can't be evaluated
+ * by the compiler.  This can only be used within a function.
+ *
+ * Example:
+ *	#include <stddef.h>
+ *	...
+ *	static char *foo_to_char(struct foo *foo)
+ *	{
+ *		// This code needs string to be at start of foo.
+ *		BUILD_ASSERT(offsetof(struct foo, string) == 0);
+ *		return (char *)foo;
+ *	}
+ */
+#define BUILD_ASSERT(cond) \
+	do { (void) sizeof(char [1 - 2*!(cond)]); } while(0)
+
+/**
+ * BUILD_ASSERT_OR_ZERO - assert a build-time dependency, as an expression.
+ * @cond: the compile-time condition which must be true.
+ *
+ * Your compile will fail if the condition isn't true, or can't be evaluated
+ * by the compiler.  This can be used in an expression: its value is "0".
+ *
+ * Example:
+ *	#define foo_to_char(foo)					\
+ *		 ((char *)(foo)						\
+ *		  + BUILD_ASSERT_OR_ZERO(offsetof(struct foo, string) == 0))
+ */
+#define BUILD_ASSERT_OR_ZERO(cond) \
+	(sizeof(char [1 - 2*!(cond)]) - 1)
+
+#endif /* CCAN_BUILD_ASSERT_H */
diff --git a/ccan/check_type/check_type.h b/ccan/check_type/check_type.h
new file mode 100644
index 0000000000..1f77a535e4
--- /dev/null
+++ b/ccan/check_type/check_type.h
@@ -0,0 +1,63 @@
+/* CC0 (Public domain) - see ccan/licenses/CC0 file for details */
+#ifndef CCAN_CHECK_TYPE_H
+#define CCAN_CHECK_TYPE_H
+
+/**
+ * check_type - issue a warning or build failure if type is not correct.
+ * @expr: the expression whose type we should check (not evaluated).
+ * @type: the exact type we expect the expression to be.
+ *
+ * This macro is usually used within other macros to try to ensure that a macro
+ * argument is of the expected type.  No type promotion of the expression is
+ * done: an unsigned int is not the same as an int!
+ *
+ * check_type() always evaluates to 0.
+ *
+ * If your compiler does not support typeof, then the best we can do is fail
+ * to compile if the sizes of the types are unequal (a less complete check).
+ *
+ * Example:
+ *	// They should always pass a 64-bit value to _set_some_value!
+ *	#define set_some_value(expr)			\
+ *		_set_some_value((check_type((expr), uint64_t), (expr)))
+ */
+
+/**
+ * check_types_match - issue a warning or build failure if types are not same.
+ * @expr1: the first expression (not evaluated).
+ * @expr2: the second expression (not evaluated).
+ *
+ * This macro is usually used within other macros to try to ensure that
+ * arguments are of identical types.  No type promotion of the expressions is
+ * done: an unsigned int is not the same as an int!
+ *
+ * check_types_match() always evaluates to 0.
+ *
+ * If your compiler does not support typeof, then the best we can do is fail
+ * to compile if the sizes of the types are unequal (a less complete check).
+ *
+ * Example:
+ *	// Do subtraction to get to enclosing type, but make sure that
+ *	// pointer is of correct type for that member.
+ *	#define container_of(mbr_ptr, encl_type, mbr)			\
+ *		(check_types_match((mbr_ptr), &((encl_type *)0)->mbr),	\
+ *		 ((encl_type *)						\
+ *		  ((char *)(mbr_ptr) - offsetof(enclosing_type, mbr))))
+ */
+#if HAVE_TYPEOF
+#define check_type(expr, type)			\
+	((typeof(expr) *)0 != (type *)0)
+
+#define check_types_match(expr1, expr2)		\
+	((typeof(expr1) *)0 != (typeof(expr2) *)0)
+#else
+#include "ccan/build_assert/build_assert.h"
+/* Without typeof, we can only test the sizes. */
+#define check_type(expr, type)					\
+	BUILD_ASSERT_OR_ZERO(sizeof(expr) == sizeof(type))
+
+#define check_types_match(expr1, expr2)				\
+	BUILD_ASSERT_OR_ZERO(sizeof(expr1) == sizeof(expr2))
+#endif /* HAVE_TYPEOF */
+
+#endif /* CCAN_CHECK_TYPE_H */
diff --git a/ccan/container_of/container_of.h b/ccan/container_of/container_of.h
new file mode 100644
index 0000000000..ae3e1fc81f
--- /dev/null
+++ b/ccan/container_of/container_of.h
@@ -0,0 +1,142 @@
+/* CC0 (Public domain) - see ccan/licenses/CC0 file for details */
+#ifndef CCAN_CONTAINER_OF_H
+#define CCAN_CONTAINER_OF_H
+#include "ccan/check_type/check_type.h"
+
+/**
+ * container_of - get pointer to enclosing structure
+ * @member_ptr: pointer to the structure member
+ * @containing_type: the type this member is within
+ * @member: the name of this member within the structure.
+ *
+ * Given a pointer to a member of a structure, this macro does pointer
+ * subtraction to return the pointer to the enclosing type.
+ *
+ * Example:
+ *	struct foo {
+ *		int fielda, fieldb;
+ *		// ...
+ *	};
+ *	struct info {
+ *		int some_other_field;
+ *		struct foo my_foo;
+ *	};
+ *
+ *	static struct info *foo_to_info(struct foo *foo)
+ *	{
+ *		return container_of(foo, struct info, my_foo);
+ *	}
+ */
+#define container_of(member_ptr, containing_type, member)		\
+	 ((containing_type *)						\
+	  ((char *)(member_ptr)						\
+	   - container_off(containing_type, member))			\
+	  + check_types_match(*(member_ptr), ((containing_type *)0)->member))
+
+
+/**
+ * container_of_or_null - get pointer to enclosing structure, or NULL
+ * @member_ptr: pointer to the structure member
+ * @containing_type: the type this member is within
+ * @member: the name of this member within the structure.
+ *
+ * Given a pointer to a member of a structure, this macro does pointer
+ * subtraction to return the pointer to the enclosing type, unless it
+ * is given NULL, in which case it also returns NULL.
+ *
+ * Example:
+ *	struct foo {
+ *		int fielda, fieldb;
+ *		// ...
+ *	};
+ *	struct info {
+ *		int some_other_field;
+ *		struct foo my_foo;
+ *	};
+ *
+ *	static struct info *foo_to_info_allowing_null(struct foo *foo)
+ *	{
+ *		return container_of_or_null(foo, struct info, my_foo);
+ *	}
+ */
+static inline char *container_of_or_null_(void *member_ptr, size_t offset)
+{
+	return member_ptr ? (char *)member_ptr - offset : NULL;
+}
+#define container_of_or_null(member_ptr, containing_type, member)	\
+	((containing_type *)						\
+	 container_of_or_null_(member_ptr,				\
+			       container_off(containing_type, member))	\
+	 + check_types_match(*(member_ptr), ((containing_type *)0)->member))
+
+/**
+ * container_off - get offset to enclosing structure
+ * @containing_type: the type this member is within
+ * @member: the name of this member within the structure.
+ *
+ * Given a pointer to a member of a structure, this macro does
+ * typechecking and figures out the offset to the enclosing type.
+ *
+ * Example:
+ *	struct foo {
+ *		int fielda, fieldb;
+ *		// ...
+ *	};
+ *	struct info {
+ *		int some_other_field;
+ *		struct foo my_foo;
+ *	};
+ *
+ *	static struct info *foo_to_info(struct foo *foo)
+ *	{
+ *		size_t off = container_off(struct info, my_foo);
+ *		return (void *)((char *)foo - off);
+ *	}
+ */
+#define container_off(containing_type, member)	\
+	offsetof(containing_type, member)
+
+/**
+ * container_of_var - get pointer to enclosing structure using a variable
+ * @member_ptr: pointer to the structure member
+ * @container_var: a pointer of same type as this member's container
+ * @member: the name of this member within the structure.
+ *
+ * Given a pointer to a member of a structure, this macro does pointer
+ * subtraction to return the pointer to the enclosing type.
+ *
+ * Example:
+ *	static struct info *foo_to_i(struct foo *foo)
+ *	{
+ *		struct info *i = container_of_var(foo, i, my_foo);
+ *		return i;
+ *	}
+ */
+#if HAVE_TYPEOF
+#define container_of_var(member_ptr, container_var, member) \
+	container_of(member_ptr, typeof(*container_var), member)
+#else
+#define container_of_var(member_ptr, container_var, member)	\
+	((void *)((char *)(member_ptr)	-			\
+		  container_off_var(container_var, member)))
+#endif
+
+/**
+ * container_off_var - get offset of a field in enclosing structure
+ * @container_var: a pointer to a container structure
+ * @member: the name of a member within the structure.
+ *
+ * Given (any) pointer to a structure and a its member name, this
+ * macro does pointer subtraction to return offset of member in a
+ * structure memory layout.
+ *
+ */
+#if HAVE_TYPEOF
+#define container_off_var(var, member)		\
+	container_off(typeof(*var), member)
+#else
+#define container_off_var(var, member)			\
+	((const char *)&(var)->member - (const char *)(var))
+#endif
+
+#endif /* CCAN_CONTAINER_OF_H */
diff --git a/ccan/licenses/BSD-MIT b/ccan/licenses/BSD-MIT
new file mode 100644
index 0000000000..89de354795
--- /dev/null
+++ b/ccan/licenses/BSD-MIT
@@ -0,0 +1,17 @@
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/ccan/licenses/CC0 b/ccan/licenses/CC0
new file mode 100644
index 0000000000..feb9b118e6
--- /dev/null
+++ b/ccan/licenses/CC0
@@ -0,0 +1,28 @@
+Statement of Purpose
+
+The laws of most jurisdictions throughout the world automatically confer exclusive Copyright and Related Rights (defined below) upon the creator and subsequent owner(s) (each and all, an "owner") of an original work of authorship and/or a database (each, a "Work").
+
+Certain owners wish to permanently relinquish those rights to a Work for the purpose of contributing to a commons of creative, cultural and scientific works ("Commons") that the public can reliably and without fear of later claims of infringement build upon, modify, incorporate in other works, reuse and redistribute as freely as possible in any form whatsoever and for any purposes, including without limitation commercial purposes. These owners may contribute to the Commons to promote the ideal of a free culture and the further production of creative, cultural and scientific works, or to gain reputation or greater distribution for their Work in part through the use and efforts of others.
+
+For these and/or other purposes and motivations, and without any expectation of additional consideration or compensation, the person associating CC0 with a Work (the "Affirmer"), to the extent that he or she is an owner of Copyright and Related Rights in the Work, voluntarily elects to apply CC0 to the Work and publicly distribute the Work under its terms, with knowledge of his or her Copyright and Related Rights in the Work and the meaning and intended legal effect of CC0 on those rights.
+
+1. Copyright and Related Rights. A Work made available under CC0 may be protected by copyright and related or neighboring rights ("Copyright and Related Rights"). Copyright and Related Rights include, but are not limited to, the following:
+
+    the right to reproduce, adapt, distribute, perform, display, communicate, and translate a Work;
+    moral rights retained by the original author(s) and/or performer(s);
+    publicity and privacy rights pertaining to a person's image or likeness depicted in a Work;
+    rights protecting against unfair competition in regards to a Work, subject to the limitations in paragraph 4(a), below;
+    rights protecting the extraction, dissemination, use and reuse of data in a Work;
+    database rights (such as those arising under Directive 96/9/EC of the European Parliament and of the Council of 11 March 1996 on the legal protection of databases, and under any national implementation thereof, including any amended or successor version of such directive); and
+    other similar, equivalent or corresponding rights throughout the world based on applicable law or treaty, and any national implementations thereof.
+
+2. Waiver. To the greatest extent permitted by, but not in contravention of, applicable law, Affirmer hereby overtly, fully, permanently, irrevocably and unconditionally waives, abandons, and surrenders all of Affirmer's Copyright and Related Rights and associated claims and causes of action, whether now known or unknown (including existing as well as future claims and causes of action), in the Work (i) in all territories worldwide, (ii) for the maximum duration provided by applicable law or treaty (including future time extensions), (iii) in any current or future medium and for any number of copies, and (iv) for any purpose whatsoever, including without limitation commercial, advertising or promotional purposes (the "Waiver"). Affirmer makes the Waiver for the benefit of each member of the public at large and to the detriment of Affirmer's heirs and successors, fully intending that such Waiver shall not be subject to revocation, rescission, cancellation, termination, or any other legal or equitable action to disrupt the quiet enjoyment of the Work by the public as contemplated by Affirmer's express Statement of Purpose.
+
+3. Public License Fallback. Should any part of the Waiver for any reason be judged legally invalid or ineffective under applicable law, then the Waiver shall be preserved to the maximum extent permitted taking into account Affirmer's express Statement of Purpose. In addition, to the extent the Waiver is so judged Affirmer hereby grants to each affected person a royalty-free, non transferable, non sublicensable, non exclusive, irrevocable and unconditional license to exercise Affirmer's Copyright and Related Rights in the Work (i) in all territories worldwide, (ii) for the maximum duration provided by applicable law or treaty (including future time extensions), (iii) in any current or future medium and for any number of copies, and (iv) for any purpose whatsoever, including without limitation commercial, advertising or promotional purposes (the "License"). The License shall be deemed effective as of the date CC0 was applied by Affirmer to the Work. Should any part of the License for any reason be judged legally invalid or ineffective under applicable law, such partial invalidity or ineffectiveness shall not invalidate the remainder of the License, and in such case Affirmer hereby affirms that he or she will not (i) exercise any of his or her remaining Copyright and Related Rights in the Work or (ii) assert any associated claims and causes of action with respect to the Work, in either case contrary to Affirmer's express Statement of Purpose.
+
+4. Limitations and Disclaimers.
+
+    No trademark or patent rights held by Affirmer are waived, abandoned, surrendered, licensed or otherwise affected by this document.
+    Affirmer offers the Work as-is and makes no representations or warranties of any kind concerning the Work, express, implied, statutory or otherwise, including without limitation warranties of title, merchantability, fitness for a particular purpose, non infringement, or the absence of latent or other defects, accuracy, or the present or absence of errors, whether or not discoverable, all to the greatest extent permissible under applicable law.
+    Affirmer disclaims responsibility for clearing rights of other persons that may apply to the Work or any use thereof, including without limitation any person's Copyright and Related Rights in the Work. Further, Affirmer disclaims responsibility for obtaining any necessary consents, permissions or other rights required for any use of the Work.
+    Affirmer understands and acknowledges that Creative Commons is not a party to this document and has no duty or obligation with respect to this CC0 or use of the Work.
diff --git a/ccan/list/list.h b/ccan/list/list.h
new file mode 100644
index 0000000000..ca9f9f1f7f
--- /dev/null
+++ b/ccan/list/list.h
@@ -0,0 +1,773 @@
+/* Licensed under BSD-MIT - see ccan/licenses/BSD-MIT file for details */
+#ifndef CCAN_LIST_H
+#define CCAN_LIST_H
+#include <assert.h>
+#include "ccan/str/str.h"
+#include "ccan/container_of/container_of.h"
+#include "ccan/check_type/check_type.h"
+
+/**
+ * struct list_node - an entry in a doubly-linked list
+ * @next: next entry (self if empty)
+ * @prev: previous entry (self if empty)
+ *
+ * This is used as an entry in a linked list.
+ * Example:
+ *	struct child {
+ *		const char *name;
+ *		// Linked list of all us children.
+ *		struct list_node list;
+ *	};
+ */
+struct list_node
+{
+	struct list_node *next, *prev;
+};
+
+/**
+ * struct list_head - the head of a doubly-linked list
+ * @h: the list_head (containing next and prev pointers)
+ *
+ * This is used as the head of a linked list.
+ * Example:
+ *	struct parent {
+ *		const char *name;
+ *		struct list_head children;
+ *		unsigned int num_children;
+ *	};
+ */
+struct list_head
+{
+	struct list_node n;
+};
+
+#define LIST_LOC __FILE__  ":" stringify(__LINE__)
+#define list_debug(h, loc) ((void)loc, h)
+#define list_debug_node(n, loc) ((void)loc, n)
+
+/**
+ * LIST_HEAD_INIT - initializer for an empty list_head
+ * @name: the name of the list.
+ *
+ * Explicit initializer for an empty list.
+ *
+ * See also:
+ *	LIST_HEAD, list_head_init()
+ *
+ * Example:
+ *	static struct list_head my_list = LIST_HEAD_INIT(my_list);
+ */
+#define LIST_HEAD_INIT(name) { { &name.n, &name.n } }
+
+/**
+ * LIST_HEAD - define and initialize an empty list_head
+ * @name: the name of the list.
+ *
+ * The LIST_HEAD macro defines a list_head and initializes it to an empty
+ * list.  It can be prepended by "static" to define a static list_head.
+ *
+ * See also:
+ *	LIST_HEAD_INIT, list_head_init()
+ *
+ * Example:
+ *	static LIST_HEAD(my_global_list);
+ */
+#define LIST_HEAD(name) \
+	struct list_head name = LIST_HEAD_INIT(name)
+
+/**
+ * list_head_init - initialize a list_head
+ * @h: the list_head to set to the empty list
+ *
+ * Example:
+ *	...
+ *	struct parent *parent = malloc(sizeof(*parent));
+ *
+ *	list_head_init(&parent->children);
+ *	parent->num_children = 0;
+ */
+static inline void list_head_init(struct list_head *h)
+{
+	h->n.next = h->n.prev = &h->n;
+}
+
+/**
+ * list_node_init - initialize a list_node
+ * @n: the list_node to link to itself.
+ *
+ * You don't need to use this normally!  But it lets you list_del(@n)
+ * safely.
+ */
+static inline void list_node_init(struct list_node *n)
+{
+	n->next = n->prev = n;
+}
+
+/**
+ * list_add_after - add an entry after an existing node in a linked list
+ * @h: the list_head to add the node to (for debugging)
+ * @p: the existing list_node to add the node after
+ * @n: the new list_node to add to the list.
+ *
+ * The existing list_node must already be a member of the list.
+ * The new list_node does not need to be initialized; it will be overwritten.
+ *
+ * Example:
+ *	struct child c1, c2, c3;
+ *	LIST_HEAD(h);
+ *
+ *	list_add_tail(&h, &c1.list);
+ *	list_add_tail(&h, &c3.list);
+ *	list_add_after(&h, &c1.list, &c2.list);
+ */
+#define list_add_after(h, p, n) list_add_after_(h, p, n, LIST_LOC)
+static inline void list_add_after_(struct list_head *h,
+				   struct list_node *p,
+				   struct list_node *n,
+				   const char *abortstr)
+{
+	n->next = p->next;
+	n->prev = p;
+	p->next->prev = n;
+	p->next = n;
+	(void)list_debug(h, abortstr);
+}
+
+/**
+ * list_add - add an entry at the start of a linked list.
+ * @h: the list_head to add the node to
+ * @n: the list_node to add to the list.
+ *
+ * The list_node does not need to be initialized; it will be overwritten.
+ * Example:
+ *	struct child *child = malloc(sizeof(*child));
+ *
+ *	child->name = "marvin";
+ *	list_add(&parent->children, &child->list);
+ *	parent->num_children++;
+ */
+#define list_add(h, n) list_add_(h, n, LIST_LOC)
+static inline void list_add_(struct list_head *h,
+			     struct list_node *n,
+			     const char *abortstr)
+{
+	list_add_after_(h, &h->n, n, abortstr);
+}
+
+/**
+ * list_add_before - add an entry before an existing node in a linked list
+ * @h: the list_head to add the node to (for debugging)
+ * @p: the existing list_node to add the node before
+ * @n: the new list_node to add to the list.
+ *
+ * The existing list_node must already be a member of the list.
+ * The new list_node does not need to be initialized; it will be overwritten.
+ *
+ * Example:
+ *	list_head_init(&h);
+ *	list_add_tail(&h, &c1.list);
+ *	list_add_tail(&h, &c3.list);
+ *	list_add_before(&h, &c3.list, &c2.list);
+ */
+#define list_add_before(h, p, n) list_add_before_(h, p, n, LIST_LOC)
+static inline void list_add_before_(struct list_head *h,
+				    struct list_node *p,
+				    struct list_node *n,
+				    const char *abortstr)
+{
+	n->next = p;
+	n->prev = p->prev;
+	p->prev->next = n;
+	p->prev = n;
+	(void)list_debug(h, abortstr);
+}
+
+/**
+ * list_add_tail - add an entry at the end of a linked list.
+ * @h: the list_head to add the node to
+ * @n: the list_node to add to the list.
+ *
+ * The list_node does not need to be initialized; it will be overwritten.
+ * Example:
+ *	list_add_tail(&parent->children, &child->list);
+ *	parent->num_children++;
+ */
+#define list_add_tail(h, n) list_add_tail_(h, n, LIST_LOC)
+static inline void list_add_tail_(struct list_head *h,
+				  struct list_node *n,
+				  const char *abortstr)
+{
+	list_add_before_(h, &h->n, n, abortstr);
+}
+
+/**
+ * list_empty - is a list empty?
+ * @h: the list_head
+ *
+ * If the list is empty, returns true.
+ *
+ * Example:
+ *	assert(list_empty(&parent->children) == (parent->num_children == 0));
+ */
+#define list_empty(h) list_empty_(h, LIST_LOC)
+static inline int list_empty_(const struct list_head *h, const char* abortstr)
+{
+	(void)list_debug(h, abortstr);
+	return h->n.next == &h->n;
+}
+
+/**
+ * list_empty_nodebug - is a list empty (and don't perform debug checks)?
+ * @h: the list_head
+ *
+ * If the list is empty, returns true.
+ * This differs from list_empty() in that if CCAN_LIST_DEBUG is set it
+ * will NOT perform debug checks. Only use this function if you REALLY
+ * know what you're doing.
+ *
+ * Example:
+ *	assert(list_empty_nodebug(&parent->children) == (parent->num_children == 0));
+ */
+#ifndef CCAN_LIST_DEBUG
+#define list_empty_nodebug(h) list_empty(h)
+#else
+static inline int list_empty_nodebug(const struct list_head *h)
+{
+	return h->n.next == &h->n;
+}
+#endif
+
+/**
+ * list_del - delete an entry from an (unknown) linked list.
+ * @n: the list_node to delete from the list.
+ *
+ * Note that this leaves @n in an undefined state; it can be added to
+ * another list, but not deleted again.
+ *
+ * See also:
+ *	list_del_from(), list_del_init()
+ *
+ * Example:
+ *	list_del(&child->list);
+ *	parent->num_children--;
+ */
+#define list_del(n) list_del_(n, LIST_LOC)
+static inline void list_del_(struct list_node *n, const char* abortstr)
+{
+	(void)list_debug_node(n, abortstr);
+	n->next->prev = n->prev;
+	n->prev->next = n->next;
+#ifdef CCAN_LIST_DEBUG
+	/* Catch use-after-del. */
+	n->next = n->prev = NULL;
+#endif
+}
+
+/**
+ * list_del_init - delete a node, and reset it so it can be deleted again.
+ * @n: the list_node to be deleted.
+ *
+ * list_del(@n) or list_del_init() again after this will be safe,
+ * which can be useful in some cases.
+ *
+ * See also:
+ *	list_del_from(), list_del()
+ *
+ * Example:
+ *	list_del_init(&child->list);
+ *	parent->num_children--;
+ */
+#define list_del_init(n) list_del_init_(n, LIST_LOC)
+static inline void list_del_init_(struct list_node *n, const char *abortstr)
+{
+	list_del_(n, abortstr);
+	list_node_init(n);
+}
+
+/**
+ * list_del_from - delete an entry from a known linked list.
+ * @h: the list_head the node is in.
+ * @n: the list_node to delete from the list.
+ *
+ * This explicitly indicates which list a node is expected to be in,
+ * which is better documentation and can catch more bugs.
+ *
+ * See also: list_del()
+ *
+ * Example:
+ *	list_del_from(&parent->children, &child->list);
+ *	parent->num_children--;
+ */
+static inline void list_del_from(struct list_head *h, struct list_node *n)
+{
+#ifdef CCAN_LIST_DEBUG
+	{
+		/* Thorough check: make sure it was in list! */
+		struct list_node *i;
+		for (i = h->n.next; i != n; i = i->next)
+			assert(i != &h->n);
+	}
+#endif /* CCAN_LIST_DEBUG */
+
+	/* Quick test that catches a surprising number of bugs. */
+	assert(!list_empty(h));
+	list_del(n);
+}
+
+/**
+ * list_swap - swap out an entry from an (unknown) linked list for a new one.
+ * @o: the list_node to replace from the list.
+ * @n: the list_node to insert in place of the old one.
+ *
+ * Note that this leaves @o in an undefined state; it can be added to
+ * another list, but not deleted/swapped again.
+ *
+ * See also:
+ *	list_del()
+ *
+ * Example:
+ *	struct child x1, x2;
+ *	LIST_HEAD(xh);
+ *
+ *	list_add(&xh, &x1.list);
+ *	list_swap(&x1.list, &x2.list);
+ */
+#define list_swap(o, n) list_swap_(o, n, LIST_LOC)
+static inline void list_swap_(struct list_node *o,
+			      struct list_node *n,
+			      const char* abortstr)
+{
+	(void)list_debug_node(o, abortstr);
+	*n = *o;
+	n->next->prev = n;
+	n->prev->next = n;
+#ifdef CCAN_LIST_DEBUG
+	/* Catch use-after-del. */
+	o->next = o->prev = NULL;
+#endif
+}
+
+/**
+ * list_entry - convert a list_node back into the structure containing it.
+ * @n: the list_node
+ * @type: the type of the entry
+ * @member: the list_node member of the type
+ *
+ * Example:
+ *	// First list entry is children.next; convert back to child.
+ *	child = list_entry(parent->children.n.next, struct child, list);
+ *
+ * See Also:
+ *	list_top(), list_for_each()
+ */
+#define list_entry(n, type, member) container_of(n, type, member)
+
+/**
+ * list_top - get the first entry in a list
+ * @h: the list_head
+ * @type: the type of the entry
+ * @member: the list_node member of the type
+ *
+ * If the list is empty, returns NULL.
+ *
+ * Example:
+ *	struct child *first;
+ *	first = list_top(&parent->children, struct child, list);
+ *	if (!first)
+ *		printf("Empty list!\n");
+ */
+#define list_top(h, type, member)					\
+	((type *)list_top_((h), list_off_(type, member)))
+
+static inline const void *list_top_(const struct list_head *h, size_t off)
+{
+	if (list_empty(h))
+		return NULL;
+	return (const char *)h->n.next - off;
+}
+
+/**
+ * list_pop - remove the first entry in a list
+ * @h: the list_head
+ * @type: the type of the entry
+ * @member: the list_node member of the type
+ *
+ * If the list is empty, returns NULL.
+ *
+ * Example:
+ *	struct child *one;
+ *	one = list_pop(&parent->children, struct child, list);
+ *	if (!one)
+ *		printf("Empty list!\n");
+ */
+#define list_pop(h, type, member)					\
+	((type *)list_pop_((h), list_off_(type, member)))
+
+static inline const void *list_pop_(const struct list_head *h, size_t off)
+{
+	struct list_node *n;
+
+	if (list_empty(h))
+		return NULL;
+	n = h->n.next;
+	list_del(n);
+	return (const char *)n - off;
+}
+
+/**
+ * list_tail - get the last entry in a list
+ * @h: the list_head
+ * @type: the type of the entry
+ * @member: the list_node member of the type
+ *
+ * If the list is empty, returns NULL.
+ *
+ * Example:
+ *	struct child *last;
+ *	last = list_tail(&parent->children, struct child, list);
+ *	if (!last)
+ *		printf("Empty list!\n");
+ */
+#define list_tail(h, type, member) \
+	((type *)list_tail_((h), list_off_(type, member)))
+
+static inline const void *list_tail_(const struct list_head *h, size_t off)
+{
+	if (list_empty(h))
+		return NULL;
+	return (const char *)h->n.prev - off;
+}
+
+/**
+ * list_for_each - iterate through a list.
+ * @h: the list_head (warning: evaluated multiple times!)
+ * @i: the structure containing the list_node
+ * @member: the list_node member of the structure
+ *
+ * This is a convenient wrapper to iterate @i over the entire list.  It's
+ * a for loop, so you can break and continue as normal.
+ *
+ * Example:
+ *	list_for_each(&parent->children, child, list)
+ *		printf("Name: %s\n", child->name);
+ */
+#define list_for_each(h, i, member)					\
+	list_for_each_off(h, i, list_off_var_(i, member))
+
+/**
+ * list_for_each_rev - iterate through a list backwards.
+ * @h: the list_head
+ * @i: the structure containing the list_node
+ * @member: the list_node member of the structure
+ *
+ * This is a convenient wrapper to iterate @i over the entire list.  It's
+ * a for loop, so you can break and continue as normal.
+ *
+ * Example:
+ *	list_for_each_rev(&parent->children, child, list)
+ *		printf("Name: %s\n", child->name);
+ */
+#define list_for_each_rev(h, i, member)					\
+	list_for_each_rev_off(h, i, list_off_var_(i, member))
+
+/**
+ * list_for_each_rev_safe - iterate through a list backwards,
+ * maybe during deletion
+ * @h: the list_head
+ * @i: the structure containing the list_node
+ * @nxt: the structure containing the list_node
+ * @member: the list_node member of the structure
+ *
+ * This is a convenient wrapper to iterate @i over the entire list backwards.
+ * It's a for loop, so you can break and continue as normal.  The extra
+ * variable * @nxt is used to hold the next element, so you can delete @i
+ * from the list.
+ *
+ * Example:
+ *	struct child *next;
+ *	list_for_each_rev_safe(&parent->children, child, next, list) {
+ *		printf("Name: %s\n", child->name);
+ *	}
+ */
+#define list_for_each_rev_safe(h, i, nxt, member)			\
+	list_for_each_rev_safe_off(h, i, nxt, list_off_var_(i, member))
+
+/**
+ * list_for_each_safe - iterate through a list, maybe during deletion
+ * @h: the list_head
+ * @i: the structure containing the list_node
+ * @nxt: the structure containing the list_node
+ * @member: the list_node member of the structure
+ *
+ * This is a convenient wrapper to iterate @i over the entire list.  It's
+ * a for loop, so you can break and continue as normal.  The extra variable
+ * @nxt is used to hold the next element, so you can delete @i from the list.
+ *
+ * Example:
+ *	list_for_each_safe(&parent->children, child, next, list) {
+ *		list_del(&child->list);
+ *		parent->num_children--;
+ *	}
+ */
+#define list_for_each_safe(h, i, nxt, member)				\
+	list_for_each_safe_off(h, i, nxt, list_off_var_(i, member))
+
+/**
+ * list_next - get the next entry in a list
+ * @h: the list_head
+ * @i: a pointer to an entry in the list.
+ * @member: the list_node member of the structure
+ *
+ * If @i was the last entry in the list, returns NULL.
+ *
+ * Example:
+ *	struct child *second;
+ *	second = list_next(&parent->children, first, list);
+ *	if (!second)
+ *		printf("No second child!\n");
+ */
+#define list_next(h, i, member)						\
+	((list_typeof(i))list_entry_or_null(list_debug(h,		\
+					    __FILE__ ":" stringify(__LINE__)), \
+					    (i)->member.next,		\
+					    list_off_var_((i), member)))
+
+/**
+ * list_prev - get the previous entry in a list
+ * @h: the list_head
+ * @i: a pointer to an entry in the list.
+ * @member: the list_node member of the structure
+ *
+ * If @i was the first entry in the list, returns NULL.
+ *
+ * Example:
+ *	first = list_prev(&parent->children, second, list);
+ *	if (!first)
+ *		printf("Can't go back to first child?!\n");
+ */
+#define list_prev(h, i, member)						\
+	((list_typeof(i))list_entry_or_null(list_debug(h,		\
+					    __FILE__ ":" stringify(__LINE__)), \
+					    (i)->member.prev,		\
+					    list_off_var_((i), member)))
+
+/**
+ * list_append_list - empty one list onto the end of another.
+ * @to: the list to append into
+ * @from: the list to empty.
+ *
+ * This takes the entire contents of @from and moves it to the end of
+ * @to.  After this @from will be empty.
+ *
+ * Example:
+ *	struct list_head adopter;
+ *
+ *	list_append_list(&adopter, &parent->children);
+ *	assert(list_empty(&parent->children));
+ *	parent->num_children = 0;
+ */
+#define list_append_list(t, f) list_append_list_(t, f,			\
+				   __FILE__ ":" stringify(__LINE__))
+static inline void list_append_list_(struct list_head *to,
+				     struct list_head *from,
+				     const char *abortstr)
+{
+	struct list_node *from_tail = list_debug(from, abortstr)->n.prev;
+	struct list_node *to_tail = list_debug(to, abortstr)->n.prev;
+
+	/* Sew in head and entire list. */
+	to->n.prev = from_tail;
+	from_tail->next = &to->n;
+	to_tail->next = &from->n;
+	from->n.prev = to_tail;
+
+	/* Now remove head. */
+	list_del(&from->n);
+	list_head_init(from);
+}
+
+/**
+ * list_prepend_list - empty one list into the start of another.
+ * @to: the list to prepend into
+ * @from: the list to empty.
+ *
+ * This takes the entire contents of @from and moves it to the start
+ * of @to.  After this @from will be empty.
+ *
+ * Example:
+ *	list_prepend_list(&adopter, &parent->children);
+ *	assert(list_empty(&parent->children));
+ *	parent->num_children = 0;
+ */
+#define list_prepend_list(t, f) list_prepend_list_(t, f, LIST_LOC)
+static inline void list_prepend_list_(struct list_head *to,
+				      struct list_head *from,
+				      const char *abortstr)
+{
+	struct list_node *from_tail = list_debug(from, abortstr)->n.prev;
+	struct list_node *to_head = list_debug(to, abortstr)->n.next;
+
+	/* Sew in head and entire list. */
+	to->n.next = &from->n;
+	from->n.prev = &to->n;
+	to_head->prev = from_tail;
+	from_tail->next = to_head;
+
+	/* Now remove head. */
+	list_del(&from->n);
+	list_head_init(from);
+}
+
+/* internal macros, do not use directly */
+#define list_for_each_off_dir_(h, i, off, dir)				\
+	for (i = list_node_to_off_(list_debug(h, LIST_LOC)->n.dir,	\
+				   (off));				\
+	list_node_from_off_((void *)i, (off)) != &(h)->n;		\
+	i = list_node_to_off_(list_node_from_off_((void *)i, (off))->dir, \
+			      (off)))
+
+#define list_for_each_safe_off_dir_(h, i, nxt, off, dir)		\
+	for (i = list_node_to_off_(list_debug(h, LIST_LOC)->n.dir,	\
+				   (off)),				\
+	nxt = list_node_to_off_(list_node_from_off_(i, (off))->dir,	\
+				(off));					\
+	list_node_from_off_(i, (off)) != &(h)->n;			\
+	i = nxt,							\
+	nxt = list_node_to_off_(list_node_from_off_(i, (off))->dir,	\
+				(off)))
+
+/**
+ * list_for_each_off - iterate through a list of memory regions.
+ * @h: the list_head
+ * @i: the pointer to a memory region wich contains list node data.
+ * @off: offset(relative to @i) at which list node data resides.
+ *
+ * This is a low-level wrapper to iterate @i over the entire list, used to
+ * implement all oher, more high-level, for-each constructs. It's a for loop,
+ * so you can break and continue as normal.
+ *
+ * WARNING! Being the low-level macro that it is, this wrapper doesn't know
+ * nor care about the type of @i. The only assumtion made is that @i points
+ * to a chunk of memory that at some @offset, relative to @i, contains a
+ * properly filled `struct node_list' which in turn contains pointers to
+ * memory chunks and it's turtles all the way down. Whith all that in mind
+ * remember that given the wrong pointer/offset couple this macro will
+ * happilly churn all you memory untill SEGFAULT stops it, in other words
+ * caveat emptor.
+ *
+ * It is worth mentioning that one of legitimate use-cases for that wrapper
+ * is operation on opaque types with known offset for `struct list_node'
+ * member(preferably 0), because it allows you not to disclose the type of
+ * @i.
+ *
+ * Example:
+ *	list_for_each_off(&parent->children, child,
+ *				offsetof(struct child, list))
+ *		printf("Name: %s\n", child->name);
+ */
+#define list_for_each_off(h, i, off)                                    \
+	list_for_each_off_dir_((h),(i),(off),next)
+
+/**
+ * list_for_each_rev_off - iterate through a list of memory regions backwards
+ * @h: the list_head
+ * @i: the pointer to a memory region wich contains list node data.
+ * @off: offset(relative to @i) at which list node data resides.
+ *
+ * See list_for_each_off for details
+ */
+#define list_for_each_rev_off(h, i, off)                                    \
+	list_for_each_off_dir_((h),(i),(off),prev)
+
+/**
+ * list_for_each_safe_off - iterate through a list of memory regions, maybe
+ * during deletion
+ * @h: the list_head
+ * @i: the pointer to a memory region wich contains list node data.
+ * @nxt: the structure containing the list_node
+ * @off: offset(relative to @i) at which list node data resides.
+ *
+ * For details see `list_for_each_off' and `list_for_each_safe'
+ * descriptions.
+ *
+ * Example:
+ *	list_for_each_safe_off(&parent->children, child,
+ *		next, offsetof(struct child, list))
+ *		printf("Name: %s\n", child->name);
+ */
+#define list_for_each_safe_off(h, i, nxt, off)                          \
+	list_for_each_safe_off_dir_((h),(i),(nxt),(off),next)
+
+/**
+ * list_for_each_rev_safe_off - iterate backwards through a list of
+ * memory regions, maybe during deletion
+ * @h: the list_head
+ * @i: the pointer to a memory region wich contains list node data.
+ * @nxt: the structure containing the list_node
+ * @off: offset(relative to @i) at which list node data resides.
+ *
+ * For details see `list_for_each_rev_off' and `list_for_each_rev_safe'
+ * descriptions.
+ *
+ * Example:
+ *	list_for_each_rev_safe_off(&parent->children, child,
+ *		next, offsetof(struct child, list))
+ *		printf("Name: %s\n", child->name);
+ */
+#define list_for_each_rev_safe_off(h, i, nxt, off)                      \
+	list_for_each_safe_off_dir_((h),(i),(nxt),(off),prev)
+
+/* Other -off variants. */
+#define list_entry_off(n, type, off)		\
+	((type *)list_node_from_off_((n), (off)))
+
+#define list_head_off(h, type, off)		\
+	((type *)list_head_off((h), (off)))
+
+#define list_tail_off(h, type, off)		\
+	((type *)list_tail_((h), (off)))
+
+#define list_add_off(h, n, off)                 \
+	list_add((h), list_node_from_off_((n), (off)))
+
+#define list_del_off(n, off)                    \
+	list_del(list_node_from_off_((n), (off)))
+
+#define list_del_from_off(h, n, off)			\
+	list_del_from(h, list_node_from_off_((n), (off)))
+
+/* Offset helper functions so we only single-evaluate. */
+static inline void *list_node_to_off_(struct list_node *node, size_t off)
+{
+	return (void *)((char *)node - off);
+}
+static inline struct list_node *list_node_from_off_(void *ptr, size_t off)
+{
+	return (struct list_node *)((char *)ptr + off);
+}
+
+/* Get the offset of the member, but make sure it's a list_node. */
+#define list_off_(type, member)					\
+	(container_off(type, member) +				\
+	 check_type(((type *)0)->member, struct list_node))
+
+#define list_off_var_(var, member)			\
+	(container_off_var(var, member) +		\
+	 check_type(var->member, struct list_node))
+
+#if HAVE_TYPEOF
+#define list_typeof(var) typeof(var)
+#else
+#define list_typeof(var) void *
+#endif
+
+/* Returns member, or NULL if at end of list. */
+static inline void *list_entry_or_null(const struct list_head *h,
+				       const struct list_node *n,
+				       size_t off)
+{
+	if (n == &h->n)
+		return NULL;
+	return (char *)n - off;
+}
+#endif /* CCAN_LIST_H */
diff --git a/ccan/str/str.h b/ccan/str/str.h
new file mode 100644
index 0000000000..9a9da9cd3f
--- /dev/null
+++ b/ccan/str/str.h
@@ -0,0 +1,16 @@
+/* CC0 (Public domain) - see ccan/licenses/CC0 file for details */
+#ifndef CCAN_STR_H
+#define CCAN_STR_H
+/**
+ * stringify - Turn expression into a string literal
+ * @expr: any C expression
+ *
+ * Example:
+ *	#define PRINT_COND_IF_FALSE(cond) \
+ *		((cond) || printf("%s is false!", stringify(cond)))
+ */
+#define stringify(expr)		stringify_1(expr)
+/* Double-indirection required to stringify expansions */
+#define stringify_1(expr)	#expr
+
+#endif /* CCAN_STR_H */
diff --git a/class.c b/class.c
index 25e732ac2e..cb69ffe2b3 100644
--- a/class.c
+++ b/class.c
@@ -23,16 +23,129 @@
  * \{
  */
 
-#include "ruby/ruby.h"
+#include "internal.h"
 #include "ruby/st.h"
-#include "method.h"
 #include "constant.h"
 #include "vm_core.h"
-#include "internal.h"
+#include "id_table.h"
 #include <ctype.h>
 
-extern st_table *rb_class_tbl;
-static ID id_attached;
+#define id_attached id__attached__
+
+void
+rb_class_subclass_add(VALUE super, VALUE klass)
+{
+    rb_subclass_entry_t *entry, *head;
+
+    if (super && super != Qundef) {
+	entry = ALLOC(rb_subclass_entry_t);
+	entry->klass = klass;
+	entry->next = NULL;
+
+	head = RCLASS_EXT(super)->subclasses;
+	if (head) {
+	    entry->next = head;
+	    RCLASS_EXT(head->klass)->parent_subclasses = &entry->next;
+	}
+
+	RCLASS_EXT(super)->subclasses = entry;
+	RCLASS_EXT(klass)->parent_subclasses = &RCLASS_EXT(super)->subclasses;
+    }
+}
+
+static void
+rb_module_add_to_subclasses_list(VALUE module, VALUE iclass)
+{
+    rb_subclass_entry_t *entry, *head;
+
+    entry = ALLOC(rb_subclass_entry_t);
+    entry->klass = iclass;
+    entry->next = NULL;
+
+    head = RCLASS_EXT(module)->subclasses;
+    if (head) {
+	entry->next = head;
+	RCLASS_EXT(head->klass)->module_subclasses = &entry->next;
+    }
+
+    RCLASS_EXT(module)->subclasses = entry;
+    RCLASS_EXT(iclass)->module_subclasses = &RCLASS_EXT(module)->subclasses;
+}
+
+void
+rb_class_remove_from_super_subclasses(VALUE klass)
+{
+    rb_subclass_entry_t *entry;
+
+    if (RCLASS_EXT(klass)->parent_subclasses) {
+	entry = *RCLASS_EXT(klass)->parent_subclasses;
+
+	*RCLASS_EXT(klass)->parent_subclasses = entry->next;
+	if (entry->next) {
+	    RCLASS_EXT(entry->next->klass)->parent_subclasses = RCLASS_EXT(klass)->parent_subclasses;
+	}
+	xfree(entry);
+    }
+
+    RCLASS_EXT(klass)->parent_subclasses = NULL;
+}
+
+void
+rb_class_remove_from_module_subclasses(VALUE klass)
+{
+    rb_subclass_entry_t *entry;
+
+    if (RCLASS_EXT(klass)->module_subclasses) {
+	entry = *RCLASS_EXT(klass)->module_subclasses;
+	*RCLASS_EXT(klass)->module_subclasses = entry->next;
+
+	if (entry->next) {
+	    RCLASS_EXT(entry->next->klass)->module_subclasses = RCLASS_EXT(klass)->module_subclasses;
+	}
+
+	xfree(entry);
+    }
+
+    RCLASS_EXT(klass)->module_subclasses = NULL;
+}
+
+void
+rb_class_foreach_subclass(VALUE klass, void (*f)(VALUE, VALUE), VALUE arg)
+{
+    rb_subclass_entry_t *cur = RCLASS_EXT(klass)->subclasses;
+
+    /* do not be tempted to simplify this loop into a for loop, the order of
+       operations is important here if `f` modifies the linked list */
+    while (cur) {
+	VALUE curklass = cur->klass;
+	cur = cur->next;
+	f(curklass, arg);
+    }
+}
+
+static void
+class_detach_subclasses(VALUE klass, VALUE arg)
+{
+    rb_class_remove_from_super_subclasses(klass);
+}
+
+void
+rb_class_detach_subclasses(VALUE klass)
+{
+    rb_class_foreach_subclass(klass, class_detach_subclasses, Qnil);
+}
+
+static void
+class_detach_module_subclasses(VALUE klass, VALUE arg)
+{
+    rb_class_remove_from_module_subclasses(klass);
+}
+
+void
+rb_class_detach_module_subclasses(VALUE klass)
+{
+    rb_class_foreach_subclass(klass, class_detach_module_subclasses, Qnil);
+}
 
 /**
  * Allocates a struct RClass for a new class.
@@ -49,19 +162,31 @@ static ID id_attached;
 static VALUE
 class_alloc(VALUE flags, VALUE klass)
 {
-    NEWOBJ_OF(obj, struct RClass, klass, flags);
-    obj->ptr = ALLOC(rb_classext_t);
-    RCLASS_IV_TBL(obj) = 0;
-    RCLASS_CONST_TBL(obj) = 0;
-    RCLASS_M_TBL(obj) = 0;
-    RCLASS_SUPER(obj) = 0;
-    RCLASS_ORIGIN(obj) = (VALUE)obj;
-    RCLASS_IV_INDEX_TBL(obj) = 0;
+    NEWOBJ_OF(obj, struct RClass, klass, (flags & T_MASK) | FL_PROMOTED1 /* start from age == 2 */ | (RGENGC_WB_PROTECTED_CLASS ? FL_WB_PROTECTED : 0));
+    obj->ptr = ZALLOC(rb_classext_t);
+    /* ZALLOC
+      RCLASS_IV_TBL(obj) = 0;
+      RCLASS_CONST_TBL(obj) = 0;
+      RCLASS_M_TBL(obj) = 0;
+      RCLASS_IV_INDEX_TBL(obj) = 0;
+      RCLASS_SET_SUPER((VALUE)obj, 0);
+      RCLASS_EXT(obj)->subclasses = NULL;
+      RCLASS_EXT(obj)->parent_subclasses = NULL;
+      RCLASS_EXT(obj)->module_subclasses = NULL;
+     */
+    RCLASS_SET_ORIGIN((VALUE)obj, (VALUE)obj);
+    RCLASS_SERIAL(obj) = rb_next_class_serial();
     RCLASS_REFINED_CLASS(obj) = Qnil;
     RCLASS_EXT(obj)->allocator = 0;
+
     return (VALUE)obj;
 }
 
+static void
+RCLASS_M_TBL_INIT(VALUE c)
+{
+    RCLASS_M_TBL(c) = rb_id_table_create(0);
+}
 
 /*!
  * A utility function that wraps class_alloc.
@@ -77,8 +202,8 @@ rb_class_boot(VALUE super)
 {
     VALUE klass = class_alloc(T_CLASS, rb_cClass);
 
-    RCLASS_SUPER(klass) = super;
-    RCLASS_M_TBL(klass) = st_init_numtable();
+    RCLASS_SET_SUPER(klass, super);
+    RCLASS_M_TBL_INIT(klass);
 
     OBJ_INFECT(klass, super);
     return (VALUE)klass;
@@ -95,8 +220,8 @@ void
 rb_check_inheritable(VALUE super)
 {
     if (!RB_TYPE_P(super, T_CLASS)) {
-	rb_raise(rb_eTypeError, "superclass must be a Class (%s given)",
-		 rb_obj_classname(super));
+	rb_raise(rb_eTypeError, "superclass must be a Class (%"PRIsVALUE" given)",
+		 rb_obj_class(super));
     }
     if (RBASIC(super)->flags & FL_SINGLETON) {
 	rb_raise(rb_eTypeError, "can't make subclass of singleton class");
@@ -121,60 +246,53 @@ rb_class_new(VALUE super)
     return rb_class_boot(super);
 }
 
-static NODE*
-rewrite_cref_stack(NODE *node, VALUE old_klass, VALUE new_klass)
-{
-    NODE *new_node;
-    if (!node) {
-	return NULL;
-    }
-    if (node->nd_clss == old_klass) {
-	new_node = NEW_CREF(new_klass);
-	new_node->nd_next = node->nd_next;
-    } else {
-	new_node = NEW_CREF(node->nd_clss);
-	new_node->nd_next = rewrite_cref_stack(node->nd_next, old_klass, new_klass);
-    }
-    return new_node;
-}
-
 static void
-clone_method(VALUE klass, ID mid, const rb_method_entry_t *me)
+clone_method(VALUE old_klass, VALUE new_klass, ID mid, const rb_method_entry_t *me)
 {
-    VALUE newiseqval;
-    if (me->def && me->def->type == VM_METHOD_TYPE_ISEQ) {
-	rb_iseq_t *iseq;
-	newiseqval = rb_iseq_clone(me->def->body.iseq->self, klass);
-	GetISeqPtr(newiseqval, iseq);
-	iseq->cref_stack = rewrite_cref_stack(me->def->body.iseq->cref_stack, me->klass, klass);
-	rb_add_method(klass, mid, VM_METHOD_TYPE_ISEQ, iseq, me->flag);
-	RB_GC_GUARD(newiseqval);
+    if (me->def->type == VM_METHOD_TYPE_ISEQ) {
+	rb_cref_t *new_cref;
+	rb_vm_rewrite_cref(me->def->body.iseq.cref, old_klass, new_klass, &new_cref);
+	rb_add_method_iseq(new_klass, mid, me->def->body.iseq.iseqptr, new_cref, METHOD_ENTRY_VISI(me));
     }
     else {
-	rb_method_entry_set(klass, mid, me, me->flag);
+	rb_method_entry_set(new_klass, mid, me, METHOD_ENTRY_VISI(me));
     }
 }
 
-static int
-clone_method_i(st_data_t key, st_data_t value, st_data_t data)
+struct clone_method_arg {
+    VALUE new_klass;
+    VALUE old_klass;
+};
+
+static enum rb_id_table_iterator_result
+clone_method_i(ID key, VALUE value, void *data)
 {
-    clone_method((VALUE)data, (ID)key, (const rb_method_entry_t *)value);
-    return ST_CONTINUE;
+    const struct clone_method_arg *arg = (struct clone_method_arg *)data;
+    clone_method(arg->old_klass, arg->new_klass, key, (const rb_method_entry_t *)value);
+    return ID_TABLE_CONTINUE;
 }
 
+struct clone_const_arg {
+    VALUE klass;
+    st_table *tbl;
+};
+
 static int
-clone_const(ID key, const rb_const_entry_t *ce, st_table *tbl)
+clone_const(ID key, const rb_const_entry_t *ce, struct clone_const_arg *arg)
 {
     rb_const_entry_t *nce = ALLOC(rb_const_entry_t);
-    *nce = *ce;
-    st_insert(tbl, key, (st_data_t)nce);
+    MEMCPY(nce, ce, rb_const_entry_t, 1);
+    RB_OBJ_WRITTEN(arg->klass, Qundef, ce->value);
+    RB_OBJ_WRITTEN(arg->klass, Qundef, ce->file);
+
+    st_insert(arg->tbl, key, (st_data_t)nce);
     return ST_CONTINUE;
 }
 
 static int
 clone_const_i(st_data_t key, st_data_t value, st_data_t data)
 {
-    return clone_const((ID)key, (const rb_const_entry_t *)value, (st_table *)data);
+    return clone_const((ID)key, (const rb_const_entry_t *)value, (struct clone_const_arg *)data);
 }
 
 static void
@@ -198,20 +316,26 @@ rb_mod_init_copy(VALUE clone, VALUE orig)
     if (RB_TYPE_P(clone, T_CLASS)) {
 	class_init_copy_check(clone, orig);
     }
-    rb_obj_init_copy(clone, orig);
+    if (!OBJ_INIT_COPY(clone, orig)) return clone;
     if (!FL_TEST(CLASS_OF(clone), FL_SINGLETON)) {
-	RBASIC(clone)->klass = rb_singleton_class_clone(orig);
+	RBASIC_SET_CLASS(clone, rb_singleton_class_clone(orig));
 	rb_singleton_class_attached(RBASIC(clone)->klass, (VALUE)clone);
     }
-    RCLASS_SUPER(clone) = RCLASS_SUPER(orig);
+    RCLASS_SET_SUPER(clone, RCLASS_SUPER(orig));
     RCLASS_EXT(clone)->allocator = RCLASS_EXT(orig)->allocator;
+    if (RCLASS_IV_TBL(clone)) {
+	st_free_table(RCLASS_IV_TBL(clone));
+	RCLASS_IV_TBL(clone) = 0;
+    }
+    if (RCLASS_CONST_TBL(clone)) {
+	rb_free_const_table(RCLASS_CONST_TBL(clone));
+	RCLASS_CONST_TBL(clone) = 0;
+    }
+    RCLASS_M_TBL(clone) = 0;
     if (RCLASS_IV_TBL(orig)) {
 	st_data_t id;
 
-	if (RCLASS_IV_TBL(clone)) {
-	    st_free_table(RCLASS_IV_TBL(clone));
-	}
-	RCLASS_IV_TBL(clone) = st_copy(RCLASS_IV_TBL(orig));
+	RCLASS_IV_TBL(clone) = rb_st_copy(clone, RCLASS_IV_TBL(orig));
 	CONST_ID(id, "__tmp_classpath__");
 	st_delete(RCLASS_IV_TBL(clone), &id, 0);
 	CONST_ID(id, "__classpath__");
@@ -220,18 +344,19 @@ rb_mod_init_copy(VALUE clone, VALUE orig)
 	st_delete(RCLASS_IV_TBL(clone), &id, 0);
     }
     if (RCLASS_CONST_TBL(orig)) {
-	if (RCLASS_CONST_TBL(clone)) {
-	    rb_free_const_table(RCLASS_CONST_TBL(clone));
-	}
+	struct clone_const_arg arg;
+
 	RCLASS_CONST_TBL(clone) = st_init_numtable();
-	st_foreach(RCLASS_CONST_TBL(orig), clone_const_i, (st_data_t)RCLASS_CONST_TBL(clone));
+	arg.klass = clone;
+	arg.tbl = RCLASS_CONST_TBL(clone);
+	st_foreach(RCLASS_CONST_TBL(orig), clone_const_i, (st_data_t)&arg);
     }
     if (RCLASS_M_TBL(orig)) {
-	if (RCLASS_M_TBL(clone)) {
-	    rb_free_m_table(RCLASS_M_TBL(clone));
-	}
-	RCLASS_M_TBL(clone) = st_init_numtable();
-	st_foreach(RCLASS_M_TBL(orig), clone_method_i, (st_data_t)clone);
+	struct clone_method_arg arg;
+	arg.old_klass = orig;
+	arg.new_klass = clone;
+	RCLASS_M_TBL_INIT(clone);
+	rb_id_table_foreach(RCLASS_M_TBL(orig), clone_method_i, &arg);
     }
 
     return clone;
@@ -246,7 +371,7 @@ rb_singleton_class_clone(VALUE obj)
 VALUE
 rb_singleton_class_clone_and_attach(VALUE obj, VALUE attach)
 {
-    VALUE klass = RBASIC(obj)->klass;
+    const VALUE klass = RBASIC(obj)->klass;
 
     if (!FL_TEST(klass, FL_SINGLETON))
 	return klass;
@@ -255,28 +380,37 @@ rb_singleton_class_clone_and_attach(VALUE obj, VALUE attach)
 	VALUE clone = class_alloc(RBASIC(klass)->flags, 0);
 
 	if (BUILTIN_TYPE(obj) == T_CLASS) {
-	    RBASIC(clone)->klass = clone;
+	    RBASIC_SET_CLASS(clone, clone);
 	}
 	else {
-	    RBASIC(clone)->klass = rb_singleton_class_clone(klass);
+	    RBASIC_SET_CLASS(clone, rb_singleton_class_clone(klass));
 	}
 
-	RCLASS_SUPER(clone) = RCLASS_SUPER(klass);
+	RCLASS_SET_SUPER(clone, RCLASS_SUPER(klass));
 	RCLASS_EXT(clone)->allocator = RCLASS_EXT(klass)->allocator;
 	if (RCLASS_IV_TBL(klass)) {
-	    RCLASS_IV_TBL(clone) = st_copy(RCLASS_IV_TBL(klass));
+	    RCLASS_IV_TBL(clone) = rb_st_copy(clone, RCLASS_IV_TBL(klass));
 	}
 	if (RCLASS_CONST_TBL(klass)) {
+	    struct clone_const_arg arg;
 	    RCLASS_CONST_TBL(clone) = st_init_numtable();
-	    st_foreach(RCLASS_CONST_TBL(klass), clone_const_i, (st_data_t)RCLASS_CONST_TBL(clone));
+	    arg.klass = clone;
+	    arg.tbl = RCLASS_CONST_TBL(clone);
+	    st_foreach(RCLASS_CONST_TBL(klass), clone_const_i, (st_data_t)&arg);
 	}
 	if (attach != Qundef) {
 	    rb_singleton_class_attached(clone, attach);
 	}
-	RCLASS_M_TBL(clone) = st_init_numtable();
-	st_foreach(RCLASS_M_TBL(klass), clone_method_i, (st_data_t)clone);
+	RCLASS_M_TBL_INIT(clone);
+	{
+	    struct clone_method_arg arg;
+	    arg.old_klass = klass;
+	    arg.new_klass = clone;
+	    rb_id_table_foreach(RCLASS_M_TBL(klass), clone_method_i, &arg);
+	}
 	rb_singleton_class_attached(RBASIC(clone)->klass, clone);
 	FL_SET(clone, FL_SINGLETON);
+
 	return clone;
     }
 }
@@ -292,13 +426,14 @@ rb_singleton_class_attached(VALUE klass, VALUE obj)
 	if (!RCLASS_IV_TBL(klass)) {
 	    RCLASS_IV_TBL(klass) = st_init_numtable();
 	}
-	st_insert(RCLASS_IV_TBL(klass), id_attached, obj);
+	rb_class_ivar_set(klass, id_attached, obj);
     }
 }
 
 
 
 #define METACLASS_OF(k) RBASIC(k)->klass
+#define SET_METACLASS_OF(k, cls) RBASIC_SET_CLASS(k, cls)
 
 /*!
  * whether k is a meta^(n)-class of Class class
@@ -307,6 +442,19 @@ rb_singleton_class_attached(VALUE klass, VALUE obj)
  */
 #define META_CLASS_OF_CLASS_CLASS_P(k)  (METACLASS_OF(k) == (k))
 
+static int
+rb_singleton_class_has_metaclass_p(VALUE sklass)
+{
+    return rb_attr_get(METACLASS_OF(sklass), id_attached) == sklass;
+}
+
+int
+rb_singleton_class_internal_p(VALUE sklass)
+{
+    return (RB_TYPE_P(rb_attr_get(sklass, id_attached), T_CLASS) &&
+	    !rb_singleton_class_has_metaclass_p(sklass));
+}
+
 /*!
  * whether k has a metaclass
  * @retval 1 if \a k has a metaclass
@@ -314,7 +462,7 @@ rb_singleton_class_attached(VALUE klass, VALUE obj)
  */
 #define HAVE_METACLASS_P(k) \
     (FL_TEST(METACLASS_OF(k), FL_SINGLETON) && \
-     rb_ivar_get(METACLASS_OF(k), id_attached) == (k))
+     rb_singleton_class_has_metaclass_p(k))
 
 /*!
  * ensures \a klass belongs to its own eigenclass.
@@ -346,17 +494,18 @@ make_metaclass(VALUE klass)
     rb_singleton_class_attached(metaclass, klass);
 
     if (META_CLASS_OF_CLASS_CLASS_P(klass)) {
-	METACLASS_OF(klass) = METACLASS_OF(metaclass) = metaclass;
+	SET_METACLASS_OF(klass, metaclass);
+	SET_METACLASS_OF(metaclass, metaclass);
     }
     else {
 	VALUE tmp = METACLASS_OF(klass); /* for a meta^(n)-class klass, tmp is meta^(n)-class of Class class */
-	METACLASS_OF(klass) = metaclass;
-	METACLASS_OF(metaclass) = ENSURE_EIGENCLASS(tmp);
+	SET_METACLASS_OF(klass, metaclass);
+	SET_METACLASS_OF(metaclass, ENSURE_EIGENCLASS(tmp));
     }
 
     super = RCLASS_SUPER(klass);
     while (RB_TYPE_P(super, T_ICLASS)) super = RCLASS_SUPER(super);
-    RCLASS_SUPER(metaclass) = super ? ENSURE_EIGENCLASS(super) : rb_cClass;
+    RCLASS_SET_SUPER(metaclass, super ? ENSURE_EIGENCLASS(super) : rb_cClass);
 
     OBJ_INFECT(metaclass, RCLASS_SUPER(metaclass));
 
@@ -376,10 +525,10 @@ make_singleton_class(VALUE obj)
     VALUE klass = rb_class_boot(orig_class);
 
     FL_SET(klass, FL_SINGLETON);
-    RBASIC(obj)->klass = klass;
+    RBASIC_SET_CLASS(obj, klass);
     rb_singleton_class_attached(klass, obj);
 
-    METACLASS_OF(klass) = METACLASS_OF(rb_class_real(orig_class));
+    SET_METACLASS_OF(klass, METACLASS_OF(rb_class_real(orig_class)));
     return klass;
 }
 
@@ -387,12 +536,10 @@ make_singleton_class(VALUE obj)
 static VALUE
 boot_defclass(const char *name, VALUE super)
 {
-    extern st_table *rb_class_tbl;
     VALUE obj = rb_class_boot(super);
     ID id = rb_intern(name);
 
     rb_name_class(obj, id);
-    st_add_direct(rb_class_tbl, id, obj);
     rb_const_set((rb_cObject ? rb_cObject : obj), id, obj);
     return obj;
 }
@@ -400,19 +547,17 @@ boot_defclass(const char *name, VALUE super)
 void
 Init_class_hierarchy(void)
 {
-    id_attached = rb_intern("__attached__");
-
     rb_cBasicObject = boot_defclass("BasicObject", 0);
     rb_cObject = boot_defclass("Object", rb_cBasicObject);
+    rb_gc_register_mark_object(rb_cObject);
     rb_cModule = boot_defclass("Module", rb_cObject);
     rb_cClass =  boot_defclass("Class",  rb_cModule);
 
-    rb_const_set(rb_cObject, rb_intern("BasicObject"), rb_cBasicObject);
-    RBASIC(rb_cClass)->klass
-	= RBASIC(rb_cModule)->klass
-	= RBASIC(rb_cObject)->klass
-	= RBASIC(rb_cBasicObject)->klass
-	= rb_cClass;
+    rb_const_set(rb_cObject, rb_intern_const("BasicObject"), rb_cBasicObject);
+    RBASIC_SET_CLASS(rb_cClass, rb_cClass);
+    RBASIC_SET_CLASS(rb_cModule, rb_cClass);
+    RBASIC_SET_CLASS(rb_cObject, rb_cClass);
+    RBASIC_SET_CLASS(rb_cBasicObject, rb_cClass);
 }
 
 
@@ -505,7 +650,8 @@ rb_define_class(const char *name, VALUE super)
     if (rb_const_defined(rb_cObject, id)) {
 	klass = rb_const_get(rb_cObject, id);
 	if (!RB_TYPE_P(klass, T_CLASS)) {
-	    rb_raise(rb_eTypeError, "%s is not a class", name);
+	    rb_raise(rb_eTypeError, "%s is not a class (%"PRIsVALUE")",
+		     name, rb_obj_class(klass));
 	}
 	if (rb_class_real(RCLASS_SUPER(klass)) != super) {
 	    rb_raise(rb_eTypeError, "superclass mismatch for class %s", name);
@@ -516,7 +662,7 @@ rb_define_class(const char *name, VALUE super)
 	rb_warn("no super class for `%s', Object assumed", name);
     }
     klass = rb_define_class_id(id, super);
-    st_add_direct(rb_class_tbl, id, klass);
+    rb_vm_add_root_module(id, klass);
     rb_name_class(klass, id);
     rb_const_set(rb_cObject, id, klass);
     rb_class_inherited(super, klass);
@@ -534,7 +680,7 @@ rb_define_class(const char *name, VALUE super)
  * \return the created class
  * \throw TypeError if the constant name \a name is already taken but
  *                  the constant is not a \c Class.
- * \throw NameError if the class is already defined but the class can not
+ * \throw TypeError if the class is already defined but the class can not
  *                  be reopened because its superclass is not \a super.
  * \post top-level constant named \a name refers the returned class.
  *
@@ -557,7 +703,7 @@ rb_define_class_under(VALUE outer, const char *name, VALUE super)
  * \return the created class
  * \throw TypeError if the constant name \a name is already taken but
  *                  the constant is not a \c Class.
- * \throw NameError if the class is already defined but the class can not
+ * \throw TypeError if the class is already defined but the class can not
  *                  be reopened because its superclass is not \a super.
  * \post top-level constant named \a name refers the returned class.
  *
@@ -572,16 +718,21 @@ rb_define_class_id_under(VALUE outer, ID id, VALUE super)
     if (rb_const_defined_at(outer, id)) {
 	klass = rb_const_get_at(outer, id);
 	if (!RB_TYPE_P(klass, T_CLASS)) {
-	    rb_raise(rb_eTypeError, "%s is not a class", rb_id2name(id));
+	    rb_raise(rb_eTypeError, "%"PRIsVALUE"::%"PRIsVALUE" is not a class"
+		     " (%"PRIsVALUE")",
+		     outer, rb_id2str(id), rb_obj_class(klass));
 	}
 	if (rb_class_real(RCLASS_SUPER(klass)) != super) {
-	    rb_name_error(id, "%s is already defined", rb_id2name(id));
+	    rb_raise(rb_eTypeError, "superclass mismatch for class "
+		     "%"PRIsVALUE"::%"PRIsVALUE""
+		     " (%"PRIsVALUE" is given but was %"PRIsVALUE")",
+		     outer, rb_id2str(id), RCLASS_SUPER(klass), super);
 	}
 	return klass;
     }
     if (!super) {
-	rb_warn("no super class for `%s::%s', Object assumed",
-		rb_class2name(outer), rb_id2name(id));
+	rb_warn("no super class for `%"PRIsVALUE"::%"PRIsVALUE"', Object assumed",
+		rb_class_path(outer), rb_id2str(id));
     }
     klass = rb_define_class_id(id, super);
     rb_set_class_path_string(klass, outer, rb_id2str(id));
@@ -596,9 +747,7 @@ VALUE
 rb_module_new(void)
 {
     VALUE mdl = class_alloc(T_MODULE, rb_cModule);
-
-    RCLASS_M_TBL(mdl) = st_init_numtable();
-
+    RCLASS_M_TBL_INIT(mdl);
     return (VALUE)mdl;
 }
 
@@ -622,12 +771,14 @@ rb_define_module(const char *name)
     id = rb_intern(name);
     if (rb_const_defined(rb_cObject, id)) {
 	module = rb_const_get(rb_cObject, id);
-	if (RB_TYPE_P(module, T_MODULE))
-	    return module;
-	rb_raise(rb_eTypeError, "%s is not a module", rb_obj_classname(module));
+	if (!RB_TYPE_P(module, T_MODULE)) {
+	    rb_raise(rb_eTypeError, "%s is not a module (%"PRIsVALUE")",
+		     name, rb_obj_class(module));
+	}
+	return module;
     }
     module = rb_define_module_id(id);
-    st_add_direct(rb_class_tbl, id, module);
+    rb_vm_add_root_module(id, module);
     rb_const_set(rb_cObject, id, module);
 
     return module;
@@ -646,10 +797,12 @@ rb_define_module_id_under(VALUE outer, ID id)
 
     if (rb_const_defined_at(outer, id)) {
 	module = rb_const_get_at(outer, id);
-	if (RB_TYPE_P(module, T_MODULE))
-	    return module;
-	rb_raise(rb_eTypeError, "%s::%s is not a module",
-		 rb_class2name(outer), rb_obj_classname(module));
+	if (!RB_TYPE_P(module, T_MODULE)) {
+	    rb_raise(rb_eTypeError, "%"PRIsVALUE"::%"PRIsVALUE" is not a module"
+		     " (%"PRIsVALUE")",
+		     outer, rb_id2str(id), rb_obj_class(module));
+	}
+	return module;
     }
     module = rb_define_module_id(id);
     rb_const_set(outer, id, module);
@@ -675,13 +828,16 @@ rb_include_class_new(VALUE module, VALUE super)
     }
     RCLASS_IV_TBL(klass) = RCLASS_IV_TBL(module);
     RCLASS_CONST_TBL(klass) = RCLASS_CONST_TBL(module);
-    RCLASS_M_TBL(klass) = RCLASS_M_TBL(RCLASS_ORIGIN(module));
-    RCLASS_SUPER(klass) = super;
+
+    RCLASS_M_TBL(OBJ_WB_UNPROTECT(klass)) =
+      RCLASS_M_TBL(OBJ_WB_UNPROTECT(RCLASS_ORIGIN(module))); /* TODO: unprotected? */
+
+    RCLASS_SET_SUPER(klass, super);
     if (RB_TYPE_P(module, T_ICLASS)) {
-	RBASIC(klass)->klass = RBASIC(module)->klass;
+	RBASIC_SET_CLASS(klass, RBASIC(module)->klass);
     }
     else {
-	RBASIC(klass)->klass = module;
+	RBASIC_SET_CLASS(klass, module);
     }
     OBJ_INFECT(klass, module);
     OBJ_INFECT(klass, super);
@@ -689,43 +845,44 @@ rb_include_class_new(VALUE module, VALUE super)
     return (VALUE)klass;
 }
 
-static int include_modules_at(const VALUE klass, VALUE c, VALUE module);
+static int include_modules_at(const VALUE klass, VALUE c, VALUE module, int search_super);
 
-void
-rb_include_module(VALUE klass, VALUE module)
+static void
+ensure_includable(VALUE klass, VALUE module)
 {
-    int changed = 0;
-
     rb_frozen_class_p(klass);
-    if (!OBJ_UNTRUSTED(klass)) {
-	rb_secure(4);
+    Check_Type(module, T_MODULE);
+    if (!NIL_P(rb_refinement_module_get_refined_class(module))) {
+	rb_raise(rb_eArgError, "refinement module is not allowed");
     }
+    OBJ_INFECT(klass, module);
+}
 
-    if (!RB_TYPE_P(module, T_MODULE)) {
-	Check_Type(module, T_MODULE);
-    }
+void
+rb_include_module(VALUE klass, VALUE module)
+{
+    int changed = 0;
 
-    OBJ_INFECT(klass, module);
+    ensure_includable(klass, module);
 
-    changed = include_modules_at(klass, RCLASS_ORIGIN(klass), module);
+    changed = include_modules_at(klass, RCLASS_ORIGIN(klass), module, TRUE);
     if (changed < 0)
 	rb_raise(rb_eArgError, "cyclic include detected");
-    if (changed) rb_clear_cache();
 }
 
-static int
-add_refined_method_entry_i(st_data_t key, st_data_t value, st_data_t data)
+static enum rb_id_table_iterator_result
+add_refined_method_entry_i(ID key, VALUE value, void *data)
 {
-    rb_add_refined_method_entry((VALUE) data, (ID) key);
-    return ST_CONTINUE;
+    rb_add_refined_method_entry((VALUE)data, key);
+    return ID_TABLE_CONTINUE;
 }
 
 static int
-include_modules_at(const VALUE klass, VALUE c, VALUE module)
+include_modules_at(const VALUE klass, VALUE c, VALUE module, int search_super)
 {
-    VALUE p;
-    int changed = 0;
-    const st_table *const klass_m_tbl = RCLASS_M_TBL(RCLASS_ORIGIN(klass));
+    VALUE p, iclass;
+    int method_changed = 0, constant_changed = 0;
+    struct rb_id_table *const klass_m_tbl = RCLASS_M_TBL(RCLASS_ORIGIN(klass));
 
     while (module) {
 	int superclass_seen = FALSE;
@@ -736,99 +893,98 @@ include_modules_at(const VALUE klass, VALUE c, VALUE module)
 	    return -1;
 	/* ignore if the module included already in superclasses */
 	for (p = RCLASS_SUPER(klass); p; p = RCLASS_SUPER(p)) {
-	    switch (BUILTIN_TYPE(p)) {
-	      case T_ICLASS:
+	    int type = BUILTIN_TYPE(p);
+	    if (type == T_ICLASS) {
 		if (RCLASS_M_TBL(p) == RCLASS_M_TBL(module)) {
 		    if (!superclass_seen) {
 			c = p;  /* move insertion point */
 		    }
 		    goto skip;
 		}
-		break;
-	      case T_CLASS:
+	    }
+	    else if (type == T_CLASS) {
+		if (!search_super) break;
 		superclass_seen = TRUE;
-		break;
 	    }
 	}
-	c = RCLASS_SUPER(c) = rb_include_class_new(module, RCLASS_SUPER(c));
+	iclass = rb_include_class_new(module, RCLASS_SUPER(c));
+	c = RCLASS_SET_SUPER(c, iclass);
+
+	{
+	    VALUE m = module;
+	    if (BUILTIN_TYPE(m) == T_ICLASS) m = RBASIC(m)->klass;
+	    rb_module_add_to_subclasses_list(m, iclass);
+	}
+
 	if (FL_TEST(klass, RMODULE_IS_REFINEMENT)) {
 	    VALUE refined_class =
 		rb_refinement_module_get_refined_class(klass);
 
-	    st_foreach(RMODULE_M_TBL(module), add_refined_method_entry_i,
-		       (st_data_t) refined_class);
+	    rb_id_table_foreach(RMODULE_M_TBL(module), add_refined_method_entry_i, (void *)refined_class);
 	    FL_SET(c, RMODULE_INCLUDED_INTO_REFINEMENT);
 	}
-	if (RMODULE_M_TBL(module) && RMODULE_M_TBL(module)->num_entries)
-	    changed = 1;
-	if (RMODULE_CONST_TBL(module) && RMODULE_CONST_TBL(module)->num_entries)
-	    changed = 1;
+	if (RMODULE_M_TBL(module) && rb_id_table_size(RMODULE_M_TBL(module))) method_changed = 1;
+	if (RMODULE_CONST_TBL(module) && RMODULE_CONST_TBL(module)->num_entries) constant_changed = 1;
       skip:
 	module = RCLASS_SUPER(module);
     }
 
-    return changed;
+    if (method_changed) rb_clear_method_cache_by_class(klass);
+    if (constant_changed) rb_clear_constant_cache();
+
+    return method_changed;
 }
 
-static int
-move_refined_method(st_data_t key, st_data_t value, st_data_t data)
+static enum rb_id_table_iterator_result
+move_refined_method(ID key, VALUE value, void *data)
 {
     rb_method_entry_t *me = (rb_method_entry_t *) value;
-    st_table *tbl = (st_table *) data;
+    VALUE klass = (VALUE)data;
+    struct rb_id_table *tbl = RCLASS_M_TBL(klass);
 
     if (me->def->type == VM_METHOD_TYPE_REFINED) {
-	if (me->def->body.orig_me) {
-	    rb_method_entry_t *orig_me = me->def->body.orig_me, *new_me;
-	    me->def->body.orig_me = NULL;
-	    new_me = ALLOC(rb_method_entry_t);
-	    *new_me = *me;
-	    st_add_direct(tbl, key, (st_data_t) new_me);
-	    *me = *orig_me;
-	    xfree(orig_me);
-	    return ST_CONTINUE;
+	if (me->def->body.refined.orig_me) {
+	    const rb_method_entry_t *orig_me = me->def->body.refined.orig_me, *new_me;
+	    RB_OBJ_WRITE(me, &me->def->body.refined.orig_me, NULL);
+	    new_me = rb_method_entry_clone(me);
+	    rb_id_table_insert(tbl, key, (VALUE)new_me);
+	    RB_OBJ_WRITTEN(klass, Qundef, new_me);
+	    rb_method_entry_copy(me, orig_me);
+	    return ID_TABLE_CONTINUE;
 	}
 	else {
-	    st_add_direct(tbl, key, (st_data_t) me);
-	    return ST_DELETE;
+	    rb_id_table_insert(tbl, key, (VALUE)me);
+	    return ID_TABLE_DELETE;
 	}
     }
     else {
-	return ST_CONTINUE;
+	return ID_TABLE_CONTINUE;
     }
 }
 
 void
 rb_prepend_module(VALUE klass, VALUE module)
 {
-    void rb_vm_check_redefinition_by_prepend(VALUE klass);
     VALUE origin;
     int changed = 0;
 
-    rb_frozen_class_p(klass);
-    if (!OBJ_UNTRUSTED(klass)) {
-	rb_secure(4);
-    }
-
-    Check_Type(module, T_MODULE);
-
-    OBJ_INFECT(klass, module);
+    ensure_includable(klass, module);
 
     origin = RCLASS_ORIGIN(klass);
     if (origin == klass) {
 	origin = class_alloc(T_ICLASS, klass);
-	RCLASS_SUPER(origin) = RCLASS_SUPER(klass);
-	RCLASS_SUPER(klass) = origin;
-	RCLASS_ORIGIN(klass) = origin;
+	OBJ_WB_UNPROTECT(origin); /* TODO: conservative shading. Need more survey. */
+	RCLASS_SET_SUPER(origin, RCLASS_SUPER(klass));
+	RCLASS_SET_SUPER(klass, origin);
+	RCLASS_SET_ORIGIN(klass, origin);
 	RCLASS_M_TBL(origin) = RCLASS_M_TBL(klass);
-	RCLASS_M_TBL(klass) = st_init_numtable();
-	st_foreach(RCLASS_M_TBL(origin), move_refined_method,
-		   (st_data_t) RCLASS_M_TBL(klass));
+	RCLASS_M_TBL_INIT(klass);
+	rb_id_table_foreach(RCLASS_M_TBL(origin), move_refined_method, (void *)klass);
     }
-    changed = include_modules_at(klass, klass, module);
+    changed = include_modules_at(klass, klass, module, FALSE);
     if (changed < 0)
 	rb_raise(rb_eArgError, "cyclic prepend detected");
     if (changed) {
-	rb_clear_cache();
 	rb_vm_check_redefinition_by_prepend(klass);
     }
 }
@@ -904,16 +1060,18 @@ rb_mod_include_p(VALUE mod, VALUE mod2)
  *  call-seq:
  *     mod.ancestors -> array
  *
- *  Returns a list of modules included in <i>mod</i> (including
- *  <i>mod</i> itself).
+ *  Returns a list of modules included/prepended in <i>mod</i>
+ *  (including <i>mod</i> itself).
  *
  *     module Mod
  *       include Math
  *       include Comparable
+ *       prepend Enumerable
  *     end
  *
- *     Mod.ancestors    #=> [Mod, Comparable, Math]
- *     Math.ancestors   #=> [Math]
+ *     Mod.ancestors        #=> [Enumerable, Mod, Comparable, Math]
+ *     Math.ancestors       #=> [Math]
+ *     Enumerable.ancestors #=> [Enumerable]
  */
 
 VALUE
@@ -922,8 +1080,6 @@ rb_mod_ancestors(VALUE mod)
     VALUE p, ary = rb_ary_new();
 
     for (p = mod; p; p = RCLASS_SUPER(p)) {
-	if (FL_TEST(p, FL_SINGLETON))
-	    continue;
 	if (BUILTIN_TYPE(p) == T_ICLASS) {
 	    rb_ary_push(ary, RBASIC(p)->klass);
 	}
@@ -934,79 +1090,84 @@ rb_mod_ancestors(VALUE mod)
     return ary;
 }
 
-#define VISI(x) ((x)&NOEX_MASK)
-#define VISI_CHECK(x,f) (VISI(x) == (f))
-
 static int
-ins_methods_push(ID name, long type, VALUE ary, long visi)
+ins_methods_push(ID name, rb_method_visibility_t visi, VALUE ary, rb_method_visibility_t expected_visi)
 {
-    if (type == -1) return ST_CONTINUE;
+    if (visi == METHOD_VISI_UNDEF) return ST_CONTINUE;
 
-    switch (visi) {
-      case NOEX_PRIVATE:
-      case NOEX_PROTECTED:
-      case NOEX_PUBLIC:
-	visi = (type == visi);
+    switch (expected_visi) {
+      case METHOD_VISI_UNDEF:
+	if (visi != METHOD_VISI_PRIVATE) rb_ary_push(ary, ID2SYM(name));
 	break;
-      default:
-	visi = (type != NOEX_PRIVATE);
+      case METHOD_VISI_PRIVATE:
+      case METHOD_VISI_PROTECTED:
+      case METHOD_VISI_PUBLIC:
+	if (visi == expected_visi) rb_ary_push(ary, ID2SYM(name));
 	break;
     }
-    if (visi) {
-	rb_ary_push(ary, ID2SYM(name));
-    }
     return ST_CONTINUE;
 }
 
 static int
 ins_methods_i(st_data_t name, st_data_t type, st_data_t ary)
 {
-    return ins_methods_push((ID)name, (long)type, (VALUE)ary, -1); /* everything but private */
+    return ins_methods_push((ID)name, (rb_method_visibility_t)type, (VALUE)ary, METHOD_VISI_UNDEF); /* everything but private */
 }
 
 static int
 ins_methods_prot_i(st_data_t name, st_data_t type, st_data_t ary)
 {
-    return ins_methods_push((ID)name, (long)type, (VALUE)ary, NOEX_PROTECTED);
+    return ins_methods_push((ID)name, (rb_method_visibility_t)type, (VALUE)ary, METHOD_VISI_PROTECTED);
 }
 
 static int
 ins_methods_priv_i(st_data_t name, st_data_t type, st_data_t ary)
 {
-    return ins_methods_push((ID)name, (long)type, (VALUE)ary, NOEX_PRIVATE);
+    return ins_methods_push((ID)name, (rb_method_visibility_t)type, (VALUE)ary, METHOD_VISI_PRIVATE);
 }
 
 static int
 ins_methods_pub_i(st_data_t name, st_data_t type, st_data_t ary)
 {
-    return ins_methods_push((ID)name, (long)type, (VALUE)ary, NOEX_PUBLIC);
+    return ins_methods_push((ID)name, (rb_method_visibility_t)type, (VALUE)ary, METHOD_VISI_PUBLIC);
 }
 
-static int
-method_entry_i(st_data_t key, st_data_t value, st_data_t data)
+struct method_entry_arg {
+    st_table *list;
+    int recur;
+};
+
+static enum rb_id_table_iterator_result
+method_entry_i(ID key, VALUE value, void *data)
 {
     const rb_method_entry_t *me = (const rb_method_entry_t *)value;
-    st_table *list = (st_table *)data;
-    long type;
+    struct method_entry_arg *arg = (struct method_entry_arg *)data;
+    rb_method_visibility_t type;
 
-    if (!st_lookup(list, key, 0)) {
+    if (me->def->type == VM_METHOD_TYPE_REFINED) {
+	VALUE owner = me->owner;
+	me = rb_resolve_refined_method(Qnil, me);
+	if (!me) return ID_TABLE_CONTINUE;
+	if (!arg->recur && me->owner != owner) return ID_TABLE_CONTINUE;
+    }
+    if (!st_lookup(arg->list, key, 0)) {
 	if (UNDEFINED_METHOD_ENTRY_P(me)) {
-	    type = -1; /* none */
+	    type = METHOD_VISI_UNDEF; /* none */
 	}
 	else {
-	    type = VISI(me->flag);
+	    type = METHOD_ENTRY_VISI(me);
 	}
-	st_add_direct(list, key, type);
+	st_add_direct(arg->list, key, (st_data_t)type);
     }
-    return ST_CONTINUE;
+    return ID_TABLE_CONTINUE;
 }
 
 static VALUE
-class_instance_method_list(int argc, VALUE *argv, VALUE mod, int obj, int (*func) (st_data_t, st_data_t, st_data_t))
+class_instance_method_list(int argc, const VALUE *argv, VALUE mod, int obj, int (*func) (st_data_t, st_data_t, st_data_t))
 {
     VALUE ary;
     int recur, prepended = 0;
-    st_table *list;
+    struct method_entry_arg me_arg;
 
     if (argc == 0) {
 	recur = TRUE;
@@ -1022,16 +1183,17 @@ class_instance_method_list(int argc, VALUE *argv, VALUE mod, int obj, int (*func
 	prepended = 1;
     }
 
-    list = st_init_numtable();
+    me_arg.list = st_init_numtable();
+    me_arg.recur = recur;
     for (; mod; mod = RCLASS_SUPER(mod)) {
-	if (RCLASS_M_TBL(mod)) st_foreach(RCLASS_M_TBL(mod), method_entry_i, (st_data_t)list);
+	if (RCLASS_M_TBL(mod)) rb_id_table_foreach(RCLASS_M_TBL(mod), method_entry_i, &me_arg);
 	if (BUILTIN_TYPE(mod) == T_ICLASS && !prepended) continue;
 	if (obj && FL_TEST(mod, FL_SINGLETON)) continue;
 	if (!recur) break;
     }
     ary = rb_ary_new();
-    st_foreach(list, func, ary);
-    st_free_table(list);
+    st_foreach(me_arg.list, func, ary);
+    st_free_table(me_arg.list);
 
     return ary;
 }
@@ -1042,29 +1204,29 @@ class_instance_method_list(int argc, VALUE *argv, VALUE mod, int obj, int (*func
  *
  *  Returns an array containing the names of the public and protected instance
  *  methods in the receiver. For a module, these are the public and protected methods;
- *  for a class, they are the instance (not singleton) methods. With no
- *  argument, or with an argument that is <code>false</code>, the
- *  instance methods in <i>mod</i> are returned, otherwise the methods
- *  in <i>mod</i> and <i>mod</i>'s superclasses are returned.
+ *  for a class, they are the instance (not singleton) methods. If the optional
+ *  parameter is <code>false</code>, the methods of any ancestors are not included.
  *
  *     module A
  *       def method1()  end
  *     end
  *     class B
+ *       include A
  *       def method2()  end
  *     end
  *     class C < B
  *       def method3()  end
  *     end
  *
- *     A.instance_methods                #=> [:method1]
- *     B.instance_methods(false)         #=> [:method2]
- *     C.instance_methods(false)         #=> [:method3]
- *     C.instance_methods(true).length   #=> 43
+ *     A.instance_methods(false)                   #=> [:method1]
+ *     B.instance_methods(false)                   #=> [:method2]
+ *     B.instance_methods(true).include?(:method1) #=> true
+ *     C.instance_methods(false)                   #=> [:method3]
+ *     C.instance_methods.include?(:method2)       #=> true
  */
 
 VALUE
-rb_class_instance_methods(int argc, VALUE *argv, VALUE mod)
+rb_class_instance_methods(int argc, const VALUE *argv, VALUE mod)
 {
     return class_instance_method_list(argc, argv, mod, 0, ins_methods_i);
 }
@@ -1074,12 +1236,12 @@ rb_class_instance_methods(int argc, VALUE *argv, VALUE mod)
  *     mod.protected_instance_methods(include_super=true)   -> array
  *
  *  Returns a list of the protected instance methods defined in
- *  <i>mod</i>. If the optional parameter is not <code>false</code>, the
- *  methods of any ancestors are included.
+ *  <i>mod</i>. If the optional parameter is <code>false</code>, the
+ *  methods of any ancestors are not included.
  */
 
 VALUE
-rb_class_protected_instance_methods(int argc, VALUE *argv, VALUE mod)
+rb_class_protected_instance_methods(int argc, const VALUE *argv, VALUE mod)
 {
     return class_instance_method_list(argc, argv, mod, 0, ins_methods_prot_i);
 }
@@ -1089,8 +1251,8 @@ rb_class_protected_instance_methods(int argc, VALUE *argv, VALUE mod)
  *     mod.private_instance_methods(include_super=true)    -> array
  *
  *  Returns a list of the private instance methods defined in
- *  <i>mod</i>. If the optional parameter is not <code>false</code>, the
- *  methods of any ancestors are included.
+ *  <i>mod</i>. If the optional parameter is <code>false</code>, the
+ *  methods of any ancestors are not included.
  *
  *     module Mod
  *       def method1()  end
@@ -1102,7 +1264,7 @@ rb_class_protected_instance_methods(int argc, VALUE *argv, VALUE mod)
  */
 
 VALUE
-rb_class_private_instance_methods(int argc, VALUE *argv, VALUE mod)
+rb_class_private_instance_methods(int argc, const VALUE *argv, VALUE mod)
 {
     return class_instance_method_list(argc, argv, mod, 0, ins_methods_priv_i);
 }
@@ -1112,25 +1274,26 @@ rb_class_private_instance_methods(int argc, VALUE *argv, VALUE mod)
  *     mod.public_instance_methods(include_super=true)   -> array
  *
  *  Returns a list of the public instance methods defined in <i>mod</i>.
- *  If the optional parameter is not <code>false</code>, the methods of
- *  any ancestors are included.
+ *  If the optional parameter is <code>false</code>, the methods of
+ *  any ancestors are not included.
  */
 
 VALUE
-rb_class_public_instance_methods(int argc, VALUE *argv, VALUE mod)
+rb_class_public_instance_methods(int argc, const VALUE *argv, VALUE mod)
 {
     return class_instance_method_list(argc, argv, mod, 0, ins_methods_pub_i);
 }
 
 /*
  *  call-seq:
- *     obj.methods(all=true)    -> array
+ *     obj.methods(regular=true)    -> array
  *
  *  Returns a list of the names of public and protected methods of
  *  <i>obj</i>. This will include all the methods accessible in
  *  <i>obj</i>'s ancestors.
- *  If the <i>all</i> parameter is set to <code>false</code>, only those methods
- *  in the receiver will be listed.
+ *  If the optional parameter is <code>false</code>, it
+ *  returns an array of <i>obj<i>'s public and protected singleton methods,
+ *  the array will not include methods in modules included in <i>obj</i>.
  *
  *     class Klass
  *       def klass_method()
@@ -1140,26 +1303,25 @@ rb_class_public_instance_methods(int argc, VALUE *argv, VALUE mod)
  *     k.methods[0..9]    #=> [:klass_method, :nil?, :===,
  *                        #    :==~, :!, :eql?
  *                        #    :hash, :<=>, :class, :singleton_class]
- *     k.methods.length   #=> 57
+ *     k.methods.length   #=> 56
+ *
+ *     k.methods(false)   #=> []
+ *     def k.singleton_method; end
+ *     k.methods(false)   #=> [:singleton_method]
+ *
+ *     module M123; def m123; end end
+ *     k.extend M123
+ *     k.methods(false)   #=> [:singleton_method]
  */
 
 VALUE
-rb_obj_methods(int argc, VALUE *argv, VALUE obj)
+rb_obj_methods(int argc, const VALUE *argv, VALUE obj)
 {
-  retry:
-    if (argc == 0) {
-	return class_instance_method_list(argc, argv, CLASS_OF(obj), 1, ins_methods_i);
-    }
-    else {
-	VALUE recur;
-
-	rb_scan_args(argc, argv, "1", &recur);
-	if (RTEST(recur)) {
-	    argc = 0;
-	    goto retry;
-	}
+    rb_check_arity(argc, 0, 1);
+    if (argc > 0 && !RTEST(argv[0])) {
 	return rb_obj_singleton_methods(argc, argv, obj);
     }
+    return class_instance_method_list(argc, argv, CLASS_OF(obj), 1, ins_methods_i);
 }
 
 /*
@@ -1172,7 +1334,7 @@ rb_obj_methods(int argc, VALUE *argv, VALUE obj)
  */
 
 VALUE
-rb_obj_protected_methods(int argc, VALUE *argv, VALUE obj)
+rb_obj_protected_methods(int argc, const VALUE *argv, VALUE obj)
 {
     return class_instance_method_list(argc, argv, CLASS_OF(obj), 1, ins_methods_prot_i);
 }
@@ -1187,7 +1349,7 @@ rb_obj_protected_methods(int argc, VALUE *argv, VALUE obj)
  */
 
 VALUE
-rb_obj_private_methods(int argc, VALUE *argv, VALUE obj)
+rb_obj_private_methods(int argc, const VALUE *argv, VALUE obj)
 {
     return class_instance_method_list(argc, argv, CLASS_OF(obj), 1, ins_methods_priv_i);
 }
@@ -1202,7 +1364,7 @@ rb_obj_private_methods(int argc, VALUE *argv, VALUE obj)
  */
 
 VALUE
-rb_obj_public_methods(int argc, VALUE *argv, VALUE obj)
+rb_obj_public_methods(int argc, const VALUE *argv, VALUE obj)
 {
     return class_instance_method_list(argc, argv, CLASS_OF(obj), 1, ins_methods_pub_i);
 }
@@ -1241,10 +1403,11 @@ rb_obj_public_methods(int argc, VALUE *argv, VALUE obj)
  */
 
 VALUE
-rb_obj_singleton_methods(int argc, VALUE *argv, VALUE obj)
+rb_obj_singleton_methods(int argc, const VALUE *argv, VALUE obj)
 {
-    VALUE recur, ary, klass;
-    st_table *list;
+    VALUE recur, ary, klass, origin;
+    struct method_entry_arg me_arg;
+    struct rb_id_table *mtbl;
 
     if (argc == 0) {
 	recur = Qtrue;
@@ -1253,22 +1416,22 @@ rb_obj_singleton_methods(int argc, VALUE *argv, VALUE obj)
 	rb_scan_args(argc, argv, "01", &recur);
     }
     klass = CLASS_OF(obj);
-    list = st_init_numtable();
+    origin = RCLASS_ORIGIN(klass);
+    me_arg.list = st_init_numtable();
+    me_arg.recur = RTEST(recur);
     if (klass && FL_TEST(klass, FL_SINGLETON)) {
-	if (RCLASS_M_TBL(klass))
-	    st_foreach(RCLASS_M_TBL(klass), method_entry_i, (st_data_t)list);
+	if ((mtbl = RCLASS_M_TBL(origin)) != 0) rb_id_table_foreach(mtbl, method_entry_i, &me_arg);
 	klass = RCLASS_SUPER(klass);
     }
     if (RTEST(recur)) {
 	while (klass && (FL_TEST(klass, FL_SINGLETON) || RB_TYPE_P(klass, T_ICLASS))) {
-	    if (RCLASS_M_TBL(klass))
-		st_foreach(RCLASS_M_TBL(klass), method_entry_i, (st_data_t)list);
+	    if (klass != origin && (mtbl = RCLASS_M_TBL(klass)) != 0) rb_id_table_foreach(mtbl, method_entry_i, &me_arg);
 	    klass = RCLASS_SUPER(klass);
 	}
     }
     ary = rb_ary_new();
-    st_foreach(list, ins_methods_i, ary);
-    st_free_table(list);
+    st_foreach(me_arg.list, ins_methods_i, ary);
+    st_free_table(me_arg.list);
 
     return ary;
 }
@@ -1333,31 +1496,31 @@ rb_obj_singleton_methods(int argc, VALUE *argv, VALUE obj)
 void
 rb_define_method_id(VALUE klass, ID mid, VALUE (*func)(ANYARGS), int argc)
 {
-    rb_add_method_cfunc(klass, mid, func, argc, NOEX_PUBLIC);
+    rb_add_method_cfunc(klass, mid, func, argc, METHOD_VISI_PUBLIC);
 }
 
 void
 rb_define_method(VALUE klass, const char *name, VALUE (*func)(ANYARGS), int argc)
 {
-    rb_add_method_cfunc(klass, rb_intern(name), func, argc, NOEX_PUBLIC);
+    rb_add_method_cfunc(klass, rb_intern(name), func, argc, METHOD_VISI_PUBLIC);
 }
 
 void
 rb_define_protected_method(VALUE klass, const char *name, VALUE (*func)(ANYARGS), int argc)
 {
-    rb_add_method_cfunc(klass, rb_intern(name), func, argc, NOEX_PROTECTED);
+    rb_add_method_cfunc(klass, rb_intern(name), func, argc, METHOD_VISI_PROTECTED);
 }
 
 void
 rb_define_private_method(VALUE klass, const char *name, VALUE (*func)(ANYARGS), int argc)
 {
-    rb_add_method_cfunc(klass, rb_intern(name), func, argc, NOEX_PRIVATE);
+    rb_add_method_cfunc(klass, rb_intern(name), func, argc, METHOD_VISI_PRIVATE);
 }
 
 void
 rb_undef_method(VALUE klass, const char *name)
 {
-    rb_add_method(klass, rb_intern(name), VM_METHOD_TYPE_UNDEF, 0, NOEX_UNDEF);
+    rb_add_method(klass, rb_intern(name), VM_METHOD_TYPE_UNDEF, 0, METHOD_VISI_UNDEF);
 }
 
 /*!
@@ -1403,7 +1566,8 @@ singleton_class_of(VALUE obj)
 {
     VALUE klass;
 
-    if (FIXNUM_P(obj) || FLONUM_P(obj) || SYMBOL_P(obj)) {
+    if (FIXNUM_P(obj) || FLONUM_P(obj) || STATIC_SYM_P(obj)) {
+      no_singleton:
 	rb_raise(rb_eTypeError, "can't define singleton");
     }
     if (SPECIAL_CONST_P(obj)) {
@@ -1413,18 +1577,19 @@ singleton_class_of(VALUE obj)
 	return klass;
     }
     else {
-	enum ruby_value_type type = BUILTIN_TYPE(obj);
-	if (type == T_FLOAT || type == T_BIGNUM) {
-           rb_raise(rb_eTypeError, "can't define singleton");
+	switch (BUILTIN_TYPE(obj)) {
+	  case T_FLOAT: case T_BIGNUM: case T_SYMBOL:
+	    goto no_singleton;
+	  case T_STRING:
+	    if (FL_TEST_RAW(obj, RSTRING_FSTR)) goto no_singleton;
+	    break;
 	}
     }
 
-    if (FL_TEST(RBASIC(obj)->klass, FL_SINGLETON) &&
-	rb_ivar_get(RBASIC(obj)->klass, id_attached) == obj) {
-	klass = RBASIC(obj)->klass;
-    }
-    else {
-	klass = rb_make_metaclass(obj, RBASIC(obj)->klass);
+    klass = RBASIC(obj)->klass;
+    if (!(FL_TEST(klass, FL_SINGLETON) &&
+	  rb_ivar_get(klass, id_attached) == obj)) {
+	klass = rb_make_metaclass(obj, klass);
     }
 
     if (OBJ_TAINTED(obj)) {
@@ -1433,17 +1598,44 @@ singleton_class_of(VALUE obj)
     else {
 	FL_UNSET(klass, FL_TAINT);
     }
-    if (OBJ_UNTRUSTED(obj)) {
-	OBJ_UNTRUST(klass);
-    }
-    else {
-	FL_UNSET(klass, FL_UNTRUSTED);
-    }
-    if (OBJ_FROZEN(obj)) OBJ_FREEZE(klass);
+    if (OBJ_FROZEN(obj)) OBJ_FREEZE_RAW(klass);
 
     return klass;
 }
 
+void
+rb_freeze_singleton_class(VALUE x)
+{
+    /* should not propagate to meta-meta-class, and so on */
+    if (!(RBASIC(x)->flags & FL_SINGLETON)) {
+	VALUE klass = RBASIC_CLASS(x);
+	if (klass && (klass = RCLASS_ORIGIN(klass)) != 0 &&
+	    FL_TEST(klass, (FL_SINGLETON|FL_FREEZE)) == FL_SINGLETON) {
+	    OBJ_FREEZE_RAW(klass);
+	}
+    }
+}
+
+/*!
+ * Returns the singleton class of \a obj, or nil if obj is not a
+ * singleton object.
+ *
+ * \param obj an arbitrary object.
+ * \return the singleton class or nil.
+ */
+VALUE
+rb_singleton_class_get(VALUE obj)
+{
+    VALUE klass;
+
+    if (SPECIAL_CONST_P(obj)) {
+	return rb_special_singleton_class(obj);
+    }
+    klass = RBASIC(obj)->klass;
+    if (!FL_TEST(klass, FL_SINGLETON)) return Qnil;
+    if (rb_ivar_get(klass, id_attached) != obj) return Qnil;
+    return klass;
+}
 
 /*!
  * Returns the singleton class of \a obj. Creates it if necessary.
@@ -1553,7 +1745,7 @@ rb_define_attr(VALUE klass, const char *name, int read, int write)
 int
 rb_obj_basic_to_s_p(VALUE obj)
 {
-    const rb_method_entry_t *me = rb_method_entry(CLASS_OF(obj), rb_intern("to_s"), 0);
+    const rb_method_entry_t *me = rb_method_entry(CLASS_OF(obj), rb_intern("to_s"));
     if (me && me->def && me->def->type == VM_METHOD_TYPE_CFUNC &&
 	me->def->body.cfunc.func == rb_any_to_s)
 	return 1;
@@ -1627,8 +1819,11 @@ rb_scan_args(int argc, const VALUE *argv, const char *fmt, ...)
 	}
 	else {
 	    hash = rb_check_hash_type(last);
-	    if (!NIL_P(hash))
-		argc--;
+	    if (!NIL_P(hash)) {
+		VALUE opts = rb_extract_keywords(&hash);
+		if (!hash) argc--;
+		hash = opts ? opts : Qnil;
+	    }
 	}
     }
     /* capture leading mandatory arguments */
@@ -1692,6 +1887,143 @@ rb_scan_args(int argc, const VALUE *argv, const char *fmt, ...)
     return argc;
 }
 
+VALUE
+rb_keyword_error_new(const char *error, VALUE keys)
+{
+    const char *msg = "";
+    VALUE error_message;
+
+    if (RARRAY_LEN(keys) == 1) {
+	keys = RARRAY_AREF(keys, 0);
+    }
+    else {
+	keys = rb_ary_join(keys, rb_usascii_str_new2(", "));
+	msg = "s";
+    }
+
+    error_message = rb_sprintf("%s keyword%s: %"PRIsVALUE, error, msg, keys);
+
+    return rb_exc_new_str(rb_eArgError, error_message);
+}
+
+NORETURN(static void rb_keyword_error(const char *error, VALUE keys));
+static void
+rb_keyword_error(const char *error, VALUE keys)
+{
+    rb_exc_raise(rb_keyword_error_new(error, keys));
+}
+
+NORETURN(static void unknown_keyword_error(VALUE hash, const ID *table, int keywords));
+static void
+unknown_keyword_error(VALUE hash, const ID *table, int keywords)
+{
+    st_table *tbl = rb_hash_tbl_raw(hash);
+    VALUE keys;
+    int i;
+    for (i = 0; i < keywords; i++) {
+	st_data_t key = ID2SYM(table[i]);
+	st_delete(tbl, &key, NULL);
+    }
+    keys = rb_funcallv(hash, rb_intern("keys"), 0, 0);
+    if (!RB_TYPE_P(keys, T_ARRAY)) rb_raise(rb_eArgError, "unknown keyword");
+    rb_keyword_error("unknown", keys);
+}
+
+static int
+separate_symbol(st_data_t key, st_data_t value, st_data_t arg)
+{
+    VALUE *kwdhash = (VALUE *)arg;
+
+    if (!SYMBOL_P(key)) kwdhash++;
+    if (!*kwdhash) *kwdhash = rb_hash_new();
+    rb_hash_aset(*kwdhash, (VALUE)key, (VALUE)value);
+    return ST_CONTINUE;
+}
+
+VALUE
+rb_extract_keywords(VALUE *orighash)
+{
+    VALUE parthash[2] = {0, 0};
+    VALUE hash = *orighash;
+
+    if (RHASH_EMPTY_P(hash)) {
+	*orighash = 0;
+	return hash;
+    }
+    st_foreach(rb_hash_tbl_raw(hash), separate_symbol, (st_data_t)&parthash);
+    *orighash = parthash[1];
+    if (parthash[1] && RBASIC_CLASS(hash) != rb_cHash) {
+	RBASIC_SET_CLASS(parthash[1], RBASIC_CLASS(hash));
+    }
+    return parthash[0];
+}
+
+int
+rb_get_kwargs(VALUE keyword_hash, const ID *table, int required, int optional, VALUE *values)
+{
+    int i = 0, j;
+    int rest = 0;
+    VALUE missing = Qnil;
+    st_data_t key;
+
+#define extract_kwarg(keyword, val) \
+    (key = (st_data_t)(keyword), values ? \
+     st_delete(rb_hash_tbl_raw(keyword_hash), &key, (val)) : \
+     st_lookup(rb_hash_tbl_raw(keyword_hash), key, (val)))
+
+    if (NIL_P(keyword_hash)) keyword_hash = 0;
+
+    if (optional < 0) {
+	rest = 1;
+	optional = -1-optional;
+    }
+    if (values) {
+	for (j = 0; j < required + optional; j++) {
+	    values[j] = Qundef;
+	}
+    }
+    if (required) {
+	for (; i < required; i++) {
+	    VALUE keyword = ID2SYM(table[i]);
+	    if (keyword_hash) {
+		st_data_t val;
+		if (extract_kwarg(keyword, &val)) {
+		    if (values) values[i] = (VALUE)val;
+		    continue;
+		}
+	    }
+	    if (NIL_P(missing)) missing = rb_ary_tmp_new(1);
+	    rb_ary_push(missing, keyword);
+	}
+	if (!NIL_P(missing)) {
+	    rb_keyword_error("missing", missing);
+	}
+    }
+    j = i;
+    if (optional && keyword_hash) {
+	for (i = 0; i < optional; i++) {
+	    st_data_t val;
+	    if (extract_kwarg(ID2SYM(table[required+i]), &val)) {
+		if (values) values[required+i] = (VALUE)val;
+		j++;
+	    }
+	}
+    }
+    if (!rest && keyword_hash) {
+	if (RHASH_SIZE(keyword_hash) > (unsigned int)(values ? 0 : j)) {
+	    unknown_keyword_error(keyword_hash, table, required+optional);
+	}
+    }
+    return j;
+#undef extract_kwarg
+}
+
+int
+rb_class_has_methods(VALUE c)
+{
+    return rb_id_table_size(RCLASS_M_TBL(c)) == 0 ? FALSE : TRUE;
+}
+
 /*!
  * \}
  */
diff --git a/common.mk b/common.mk
index e5069e5200..da4608bc61 100644
--- a/common.mk
+++ b/common.mk
@@ -8,32 +8,47 @@ dll: $(LIBRUBY_SO)
 V = 0
 Q1 = $(V:1=)
 Q = $(Q1:0=@)
-ECHO = $(ECHO1:0=@echo)
+ECHO0 = $(ECHO1:0=echo)
+ECHO = @$(ECHO0)
+
+UNICODE_VERSION = 8.0.0
 
 RUBYLIB       = $(PATH_SEPARATOR)
 RUBYOPT       = -
 RUN_OPTS      = --disable-gems
 
-SPEC_GIT_BASE = git://github.com/rubyspec
+GEM_HOME =
+GEM_PATH =
+GEM_VENDOR =
+
+SPEC_GIT_BASE = git://github.com/ruby
 MSPEC_GIT_URL = $(SPEC_GIT_BASE)/mspec.git
 RUBYSPEC_GIT_URL = $(SPEC_GIT_BASE)/rubyspec.git
 
+SIMPLECOV_GIT_URL = git://github.com/colszowka/simplecov.git
+SIMPLECOV_GIT_REF = v0.10.0
+SIMPLECOV_HTML_GIT_URL = git://github.com/colszowka/simplecov-html.git
+SIMPLECOV_HTML_GIT_REF = v0.10.0
+DOCLIE_GIT_URL = git://github.com/ms-ati/docile.git
+DOCLIE_GIT_REF = v1.1.5
+
 STATIC_RUBY   = static-ruby
 
 EXTCONF       = extconf.rb
 LIBRUBY_EXTS  = ./.libruby-with-ext.time
 REVISION_H    = ./.revision.time
 PLATFORM_D    = ./$(PLATFORM_DIR)/.time
+ENC_TRANS_D   = ./enc/trans/.time
 RDOCOUT       = $(EXTOUT)/rdoc
+HTMLOUT       = $(EXTOUT)/html
 CAPIOUT       = doc/capi
 
-DMYEXT	      = dmyext.$(OBJEXT)
+INITOBJS      = dmyext.$(OBJEXT) dmyenc.$(OBJEXT)
 NORMALMAINOBJ = main.$(OBJEXT)
 MAINOBJ       = $(NORMALMAINOBJ)
-EXTOBJS	      =
-DLDOBJS	      = $(DMYEXT)
+DLDOBJS	      = $(INITOBJS)
 EXTSOLIBS     =
-MINIOBJS      = $(ARCHMINIOBJS) dmyencoding.$(OBJEXT) dmyversion.$(OBJEXT) miniprelude.$(OBJEXT)
+MINIOBJS      = $(ARCHMINIOBJS) miniinit.$(OBJEXT) dmyext.$(OBJEXT) miniprelude.$(OBJEXT)
 ENC_MK        = enc.mk
 
 COMMONOBJS    = array.$(OBJEXT) \
@@ -43,6 +58,7 @@ COMMONOBJS    = array.$(OBJEXT) \
 		complex.$(OBJEXT) \
 		dir.$(OBJEXT) \
 		dln_find.$(OBJEXT) \
+		encoding.$(OBJEXT) \
 		enum.$(OBJEXT) \
 		enumerator.$(OBJEXT) \
 		error.$(OBJEXT) \
@@ -80,10 +96,12 @@ COMMONOBJS    = array.$(OBJEXT) \
 		strftime.$(OBJEXT) \
 		string.$(OBJEXT) \
 		struct.$(OBJEXT) \
+		symbol.$(OBJEXT) \
 		time.$(OBJEXT) \
 		transcode.$(OBJEXT) \
 		util.$(OBJEXT) \
 		variable.$(OBJEXT) \
+		version.$(OBJEXT) \
 		compile.$(OBJEXT) \
 		debug.$(OBJEXT) \
 		iseq.$(OBJEXT) \
@@ -93,34 +111,36 @@ COMMONOBJS    = array.$(OBJEXT) \
 		vm_trace.$(OBJEXT) \
 		thread.$(OBJEXT) \
 		cont.$(OBJEXT) \
+		$(DTRACE_OBJ) \
 		$(BUILTIN_ENCOBJS) \
 		$(BUILTIN_TRANSOBJS) \
 		$(MISSING)
 
 EXPORTOBJS    = $(DLNOBJ) \
-		encoding.$(OBJEXT) \
-		version.$(OBJEXT) \
+		localeinit.$(OBJEXT) \
+		loadpath.$(OBJEXT) \
 		$(COMMONOBJS)
 
 OBJS          = $(EXPORTOBJS) prelude.$(OBJEXT)
-ALLOBJS       = $(NORMALMAINOBJ) $(MINIOBJS) $(COMMONOBJS) $(DMYEXT)
+ALLOBJS       = $(NORMALMAINOBJ) $(MINIOBJS) $(COMMONOBJS) $(INITOBJS)
 
 GOLFOBJS      = goruby.$(OBJEXT) golf_prelude.$(OBJEXT)
 
+DEFAULT_PRELUDES = $(GEM_PRELUDE)
 PRELUDE_SCRIPTS = $(srcdir)/prelude.rb $(srcdir)/enc/prelude.rb $(DEFAULT_PRELUDES)
-GEM_PRELUDE = $(srcdir)/gem_prelude.rb
-YES_GEM_PRELUDE = $(GEM_PRELUDE)
-NO_GEM_PRELUDE =
-PRELUDES      = prelude.c miniprelude.c
-GOLFPRELUDES = golf_prelude.c
+GEM_PRELUDE   = $(srcdir)/gem_prelude.rb
+PRELUDES      = {$(srcdir)}prelude.c {$(srcdir)}miniprelude.c
+GOLFPRELUDES  = {$(srcdir)}golf_prelude.c
 
 SCRIPT_ARGS   =	--dest-dir="$(DESTDIR)" \
 		--extout="$(EXTOUT)" \
 		--mflags="$(MFLAGS)" \
 		--make-flags="$(MAKEFLAGS)"
 EXTMK_ARGS    =	$(SCRIPT_ARGS) --extension $(EXTS) --extstatic $(EXTSTATIC) \
-		--make-flags="V=$(V) MINIRUBY='$(MINIRUBY)'" --
-INSTRUBY      =	$(SUDO) $(MINIRUBY) $(srcdir)/tool/rbinstall.rb
+		--make-flags="V=$(V) MINIRUBY='$(MINIRUBY)'" \
+		--gnumake=$(gnumake) --extflags="$(EXTLDFLAGS)" \
+		--
+INSTRUBY      =	$(SUDO) $(RUNRUBY) -r./$(arch)-fake $(srcdir)/tool/rbinstall.rb
 INSTRUBY_ARGS =	$(SCRIPT_ARGS) \
 		--data-mode=$(INSTALL_DATA_MODE) \
 		--prog-mode=$(INSTALL_PROG_MODE) \
@@ -133,21 +153,24 @@ PRE_LIBRUBY_UPDATE = $(MINIRUBY) -e 'ARGV[1] or File.unlink(ARGV[0]) rescue nil'
 			$(LIBRUBY_EXTS) $(LIBRUBY_SO_UPDATE)
 
 TESTSDIR      = $(srcdir)/test
+TEST_EXCLUDES = --excludes-dir=$(TESTSDIR)/excludes --name=!/memory_leak/
+EXCLUDE_TESTFRAMEWORK = --exclude=/testunit/ --exclude=/minitest/
 TESTWORKDIR   = testwork
+TESTOPTS      = $(RUBY_TESTOPTS)
 
 TESTRUN_SCRIPT = $(srcdir)/test.rb
 
-BOOTSTRAPRUBY = $(BASERUBY)
+COMPILE_PRELUDE = $(srcdir)/tool/generic_erb.rb $(srcdir)/template/prelude.c.tmpl
 
-COMPILE_PRELUDE = $(MINIRUBY) -I$(srcdir) $(srcdir)/tool/compile_prelude.rb
+SHOWFLAGS = showflags
 
-all: showflags main docs
+all: $(SHOWFLAGS) main docs
 
-main: showflags $(EXTSTATIC:static=lib)encs exts
+main: $(SHOWFLAGS) exts $(ENCSTATIC:static=lib)encs
 	@$(NULLCMD)
 
 .PHONY: showflags
-exts enc trans: showflags
+exts enc trans: $(SHOWFLAGS)
 showflags:
 	$(MESSAGE_BEGIN) \
 	"	CC = $(CC)" \
@@ -159,12 +182,13 @@ showflags:
 	"	DLDFLAGS = $(DLDFLAGS)" \
 	"	SOLIBS = $(SOLIBS)" \
 	$(MESSAGE_END)
+	-@$(CC_VERSION)
 
 .PHONY: showconfig
 showconfig:
-	@$(MESSAGE_BEGIN) \
-	"$(configure_args)" \
-	$(MESSAGE_END)
+	@$(ECHO_BEGIN) \
+	$(configure_args) \
+	$(ECHO_END)
 
 exts: build-ext
 
@@ -176,19 +200,14 @@ $(EXTS_MK): $(MKFILES) all-incs $(PREP) $(RBCONFIG) $(LIBRUBY)
 configure-ext: $(EXTS_MK)
 
 build-ext: $(EXTS_MK)
-	$(Q)$(MAKE) -f $(EXTS_MK) $(MFLAGS) $(EXTSTATIC) LIBRUBY_EXTS=$(LIBRUBY_EXTS) ENCOBJS="$(ENCOBJS)"
-
-$(MKMAIN_CMD): $(MKFILES) all-incs $(PREP) $(RBCONFIG) $(LIBRUBY)
-	$(Q)$(MINIRUBY) $(srcdir)/ext/extmk.rb --make="$(MAKE)" --command-output=$@ $(EXTMK_ARGS)
+	$(Q)$(MAKE) -f $(EXTS_MK) $(MFLAGS) libdir="$(libdir)" LIBRUBY_EXTS=$(LIBRUBY_EXTS) \
+	    EXTENCS="$(ENCOBJS)" UPDATE_LIBRARIES=no $(EXTSTATIC)
 
 prog: program wprogram
 
-loadpath: $(PREP) PHONY
-	$(MINIRUBY) -e 'p $$:'
-
 $(PREP): $(MKFILES)
 
-miniruby$(EXEEXT): config.status $(ALLOBJS) $(ARCHFILE) $(DTRACE_OBJ)
+miniruby$(EXEEXT): config.status $(ALLOBJS) $(ARCHFILE)
 
 objs: $(ALLOBJS)
 
@@ -200,7 +219,7 @@ capi: $(CAPIOUT)/.timestamp PHONY
 $(CAPIOUT)/.timestamp: Doxyfile $(PREP)
 	$(Q) $(MAKEDIRS) "$(@D)"
 	$(ECHO) generating capi
-	$(Q) $(DOXYGEN) -b
+	-$(Q) $(DOXYGEN) -b
 	$(Q) $(MINIRUBY) -e 'File.open(ARGV[0], "w"){|f| f.puts(Time.now)}' "$@"
 
 Doxyfile: $(srcdir)/template/Doxyfile.tmpl $(PREP) $(srcdir)/tool/generic_erb.rb $(RBCONFIG)
@@ -208,12 +227,13 @@ Doxyfile: $(srcdir)/template/Doxyfile.tmpl $(PREP) $(srcdir)/tool/generic_erb.rb
 	$(Q) $(MINIRUBY) $(srcdir)/tool/generic_erb.rb -o $@ $(srcdir)/template/Doxyfile.tmpl \
 	--srcdir="$(srcdir)" --miniruby="$(MINIRUBY)"
 
-program: showflags $(PROGRAM)
-wprogram: showflags $(WPROGRAM)
+program: $(SHOWFLAGS) $(PROGRAM)
+wprogram: $(SHOWFLAGS) $(WPROGRAM)
+mini: PHONY miniruby$(EXEEXT)
 
 $(PROGRAM) $(WPROGRAM): $(LIBRUBY) $(MAINOBJ) $(OBJS) $(EXTOBJS) $(SETUP) $(PREP)
 
-$(LIBRUBY_A):	$(OBJS) $(MAINOBJ) $(DTRACE_OBJ) $(DTRACE_GLOMMED_OBJ) $(DMYEXT) $(ARCHFILE)
+$(LIBRUBY_A):	$(LIBRUBY_A_OBJS) $(MAINOBJ) $(INITOBJS) $(ARCHFILE)
 
 $(LIBRUBY_SO):	$(OBJS) $(DLDOBJS) $(LIBRUBY_A) $(PREP) $(LIBRUBY_SO_UPDATE) $(BUILTIN_ENCOBJS)
 
@@ -224,9 +244,9 @@ $(STATIC_RUBY)$(EXEEXT): $(MAINOBJ) $(DLDOBJS) $(EXTOBJS) $(LIBRUBY_A)
 	$(Q)$(RM) $@
 	$(PURIFY) $(CC) $(MAINOBJ) $(DLDOBJS) $(EXTOBJS) $(LIBRUBY_A) $(MAINLIBS) $(EXTLIBS) $(LIBS) $(OUTFLAG)$@ $(LDFLAGS) $(XLDFLAGS)
 
-ruby.imp: $(EXPORTOBJS)
-	$(Q)$(NM) -Pgp $(EXPORTOBJS) | \
-	awk 'BEGIN{print "#!"}; $$2~/^[BDT]$$/&&$$1!~/^(Init_|.*_threadptr_|\.)/{print $$1}' | \
+ruby.imp: $(COMMONOBJS)
+	$(Q)$(NM) -Pgp $(COMMONOBJS) | \
+	awk 'BEGIN{print "#!"}; $$2~/^[BDT]$$/&&$$1!~/^(Init_|ruby_static_id_|.*_threadptr_|\.)/{print $$1}' | \
 	sort -u -o $@
 
 install: install-$(INSTALLDOC)
@@ -235,80 +255,80 @@ pkgconfig-data: $(ruby_pc)
 $(ruby_pc): $(srcdir)/template/ruby.pc.in config.status
 
 install-all: docs pre-install-all do-install-all post-install-all
-pre-install-all:: pre-install-local pre-install-ext pre-install-doc
-do-install-all: all
+pre-install-all:: all pre-install-local pre-install-ext pre-install-doc
+do-install-all: pre-install-all
 	$(INSTRUBY) --make="$(MAKE)" $(INSTRUBY_ARGS) --install=all --rdoc-output="$(RDOCOUT)"
 post-install-all:: post-install-local post-install-ext post-install-doc
 	@$(NULLCMD)
 
 install-nodoc: pre-install-nodoc do-install-nodoc post-install-nodoc
 pre-install-nodoc:: pre-install-local pre-install-ext
-do-install-nodoc: main
+do-install-nodoc: main pre-install-nodoc
 	$(INSTRUBY) --make="$(MAKE)" $(INSTRUBY_ARGS)
 post-install-nodoc:: post-install-local post-install-ext
 
 install-local: pre-install-local do-install-local post-install-local
 pre-install-local:: pre-install-bin pre-install-lib pre-install-man
-do-install-local: $(PROGRAM)
+do-install-local: $(PROGRAM) pre-install-local
 	$(INSTRUBY) --make="$(MAKE)" $(INSTRUBY_ARGS) --install=local
 post-install-local:: post-install-bin post-install-lib post-install-man
 
 install-ext: pre-install-ext do-install-ext post-install-ext
 pre-install-ext:: pre-install-ext-arch pre-install-ext-comm
-do-install-ext: exts
+do-install-ext: exts pre-install-ext
 	$(INSTRUBY) --make="$(MAKE)" $(INSTRUBY_ARGS) --install=ext
 post-install-ext:: post-install-ext-arch post-install-ext-comm
 
 install-arch: pre-install-arch do-install-arch post-install-arch
 pre-install-arch:: pre-install-bin pre-install-ext-arch
-do-install-arch: main
-	$(INSTRUBY) --make="$(MAKE)" $(INSTRUBY_ARGS) --install=bin --install=ext-arch
+do-install-arch: main do-install-arch
+	$(INSTRUBY) --make="$(MAKE)" $(INSTRUBY_ARGS) --install=arch
 post-install-arch:: post-install-bin post-install-ext-arch
 
 install-comm: pre-install-comm do-install-comm post-install-comm
 pre-install-comm:: pre-install-lib pre-install-ext-comm pre-install-man
-do-install-comm: $(PREP)
+do-install-comm: $(PREP) pre-install-comm
 	$(INSTRUBY) --make="$(MAKE)" $(INSTRUBY_ARGS) --install=lib --install=ext-comm --install=man
 post-install-comm:: post-install-lib post-install-ext-comm post-install-man
 
 install-bin: pre-install-bin do-install-bin post-install-bin
 pre-install-bin:: install-prereq
-do-install-bin: $(PROGRAM)
+do-install-bin: $(PROGRAM) pre-install-bin
 	$(INSTRUBY) --make="$(MAKE)" $(INSTRUBY_ARGS) --install=bin
 post-install-bin::
 	@$(NULLCMD)
 
 install-lib: pre-install-lib do-install-lib post-install-lib
 pre-install-lib:: install-prereq
-do-install-lib: $(PREP)
+do-install-lib: $(PREP) pre-install-lib
 	$(INSTRUBY) --make="$(MAKE)" $(INSTRUBY_ARGS) --install=lib
 post-install-lib::
 	@$(NULLCMD)
 
 install-ext-comm: pre-install-ext-comm do-install-ext-comm post-install-ext-comm
 pre-install-ext-comm:: install-prereq
-do-install-ext-comm: exts
+do-install-ext-comm: exts pre-install-ext-comm
 	$(INSTRUBY) --make="$(MAKE)" $(INSTRUBY_ARGS) --install=ext-comm
 post-install-ext-comm::
 	@$(NULLCMD)
 
 install-ext-arch: pre-install-ext-arch do-install-ext-arch post-install-ext-arch
 pre-install-ext-arch:: install-prereq
-do-install-ext-arch: exts
+do-install-ext-arch: exts pre-install-ext-arch
 	$(INSTRUBY) --make="$(MAKE)" $(INSTRUBY_ARGS) --install=ext-arch
 post-install-ext-arch::
 	@$(NULLCMD)
 
 install-man: pre-install-man do-install-man post-install-man
 pre-install-man:: install-prereq
-do-install-man: $(PREP)
+do-install-man: $(PREP) pre-install-man
 	$(INSTRUBY) --make="$(MAKE)" $(INSTRUBY_ARGS) --install=man
 post-install-man::
 	@$(NULLCMD)
 
 install-capi: capi pre-install-capi do-install-capi post-install-capi
 pre-install-capi:: install-prereq
-do-install-capi: $(PREP)
+do-install-capi: $(PREP) pre-install-capi
 	$(INSTRUBY) --make="$(MAKE)" $(INSTRUBY_ARGS) --install=capi
 post-install-capi::
 	@$(NULLCMD)
@@ -323,6 +343,11 @@ dont-install-all: $(PROGRAM)
 post-no-install-all:: post-no-install-local post-no-install-ext post-no-install-doc
 	@$(NULLCMD)
 
+uninstall: $(INSTALLED_LIST) sudo-precheck
+	$(Q)$(SUDO) $(MINIRUBY) $(srcdir)/tool/rbuninstall.rb --destdir=$(DESTDIR) $(INSTALLED_LIST)
+
+reinstall: all uninstall install
+
 what-where-nodoc: no-install-nodoc
 no-install-nodoc: pre-no-install-nodoc dont-install-nodoc post-no-install-nodoc
 pre-no-install-nodoc:: pre-no-install-local pre-no-install-ext
@@ -400,14 +425,14 @@ post-no-install-man::
 
 install-doc: rdoc pre-install-doc do-install-doc post-install-doc
 pre-install-doc:: install-prereq
-do-install-doc: $(PROGRAM)
+do-install-doc: $(PROGRAM) pre-install-doc
 	$(INSTRUBY) --make="$(MAKE)" $(INSTRUBY_ARGS) --install=rdoc --rdoc-output="$(RDOCOUT)"
 post-install-doc::
 	@$(NULLCMD)
 
 install-gem: pre-install-gem do-install-gem post-install-gem
 pre-install-gem:: pre-install-bin pre-install-lib pre-install-man
-do-install-gem: $(PROGRAM)
+do-install-gem: $(PROGRAM) pre-install-gem
 	$(INSTRUBY) --make="$(MAKE)" $(INSTRUBY_ARGS) --install=gem
 post-install-gem::
 	@$(NULLCMD)
@@ -416,10 +441,24 @@ rdoc: PHONY main
 	@echo Generating RDoc documentation
 	$(Q) $(XRUBY) "$(srcdir)/bin/rdoc" --root "$(srcdir)" --page-dir "$(srcdir)/doc" --encoding=UTF-8 --no-force-update --all --ri --op "$(RDOCOUT)" --debug $(RDOCFLAGS) "$(srcdir)"
 
+html: PHONY main
+	@echo Generating RDoc HTML files
+	$(Q) $(XRUBY) "$(srcdir)/bin/rdoc" --root "$(srcdir)" --page-dir "$(srcdir)/doc" --encoding=UTF-8 --no-force-update --all --op "$(HTMLOUT)" --debug $(RDOCFLAGS) "$(srcdir)"
+
 rdoc-coverage: PHONY main
 	@echo Generating RDoc coverage report
 	$(Q) $(XRUBY) "$(srcdir)/bin/rdoc" --root "$(srcdir)" --encoding=UTF-8 --all --quiet -C $(RDOCFLAGS) "$(srcdir)"
 
+RDOCBENCHOUT=/tmp/rdocbench
+
+GCBENCH_ITEM=null
+
+gcbench: PHONY
+	$(Q) $(XRUBY) "$(srcdir)/benchmark/gc/gcbench.rb" $(GCBENCH_ITEM)
+
+gcbench-rdoc: PHONY
+	$(Q) $(XRUBY) "$(srcdir)/benchmark/gc/gcbench.rb" rdoc
+
 nodoc: PHONY
 
 what-where-doc: no-install-doc
@@ -432,107 +471,166 @@ post-no-install-doc::
 
 CLEAR_INSTALLED_LIST = clear-installed-list
 
-install-prereq: $(CLEAR_INSTALLED_LIST) PHONY
+install-prereq: $(CLEAR_INSTALLED_LIST) yes-fake sudo-precheck PHONY
 
 clear-installed-list: PHONY
 	@> $(INSTALLED_LIST) set MAKE="$(MAKE)"
 
-clean: clean-ext clean-local clean-enc clean-golf clean-rdoc clean-capi clean-extout clean-platform
-clean-local:: PHONY
+clean: clean-ext clean-enc clean-golf clean-rdoc clean-capi clean-extout clean-local clean-platform
+clean-local:: clean-runnable
 	$(Q)$(RM) $(OBJS) $(MINIOBJS) $(MAINOBJ) $(LIBRUBY_A) $(LIBRUBY_SO) $(LIBRUBY) $(LIBRUBY_ALIASES)
-	$(Q)$(RM) $(PROGRAM) $(WPROGRAM) miniruby$(EXEEXT) dmyext.$(OBJEXT) $(ARCHFILE) .*.time
-	$(Q)$(RM) y.tab.c y.output encdb.h transdb.h prelude.c config.log rbconfig.rb $(ruby_pc) probes.h probes.$(OBJEXT) probes.stamp ruby-glommed.$(OBJEXT)
+	$(Q)$(RM) $(PROGRAM) $(WPROGRAM) miniruby$(EXEEXT) dmyext.$(OBJEXT) dmyenc.$(OBJEXT) $(ARCHFILE) .*.time
+	$(Q)$(RM) y.tab.c y.output encdb.h transdb.h config.log rbconfig.rb $(ruby_pc) probes.h probes.$(OBJEXT) probes.stamp ruby-glommed.$(OBJEXT)
+	$(Q)$(RM) GNUmakefile.old Makefile.old $(arch)-fake.rb bisect.sh $(ENC_TRANS_D)
+	-$(Q) $(RMDIR) enc/jis enc/trans enc 2> $(NULL) || exit 0
+clean-runnable:: PHONY
+	$(Q)$(CHDIR) bin 2>$(NULL) && $(RM) $(PROGRAM) $(WPROGRAM) $(GORUBY)$(EXEEXT) bin/*.$(DLEXT) 2>$(NULL) || exit 0
+	$(Q)$(CHDIR) lib 2>$(NULL) && $(RM) $(LIBRUBY_A) $(LIBRUBY) $(LIBRUBY_ALIASES) $(RUBY_BASE_NAME)/$(RUBY_PROGRAM_VERSION) $(RUBY_BASE_NAME)/vendor_ruby 2>$(NULL) || exit 0
+	$(Q)$(RMDIR) lib/$(RUBY_BASE_NAME) lib bin 2>$(NULL) || exit 0
 clean-ext:: PHONY
 clean-golf: PHONY
 	$(Q)$(RM) $(GORUBY)$(EXEEXT) $(GOLFOBJS)
 clean-rdoc: PHONY
+clean-html: PHONY
 clean-capi: PHONY
 clean-platform: PHONY
 clean-extout: PHONY
-clean-docs: clean-rdoc clean-capi
+	-$(Q)$(RMDIR) $(EXTOUT)/$(arch) $(EXTOUT) 2> $(NULL) || exit 0
+clean-docs: clean-rdoc clean-html clean-capi
 
-distclean: distclean-ext distclean-local distclean-enc distclean-golf distclean-extout distclean-platform
+distclean: distclean-ext distclean-enc distclean-golf distclean-extout distclean-local distclean-platform
 distclean-local:: clean-local
-	$(Q)$(RM) $(MKFILES) yasmdata.rb *.inc
+	$(Q)$(RM) $(MKFILES) yasmdata.rb *.inc $(PRELUDES)
 	$(Q)$(RM) config.cache config.status config.status.lineno
 	$(Q)$(RM) *~ *.bak *.stackdump core *.core gmon.out $(PREP)
+	-$(Q)$(RMALL) $(srcdir)/autom4te.cache
 distclean-ext:: PHONY
 distclean-golf: clean-golf
-	$(Q)$(RM) $(GOLFPRELUDES)
 distclean-rdoc: PHONY
+distclean-html: PHONY
 distclean-capi: PHONY
 distclean-extout: clean-extout
 distclean-platform: clean-platform
 
 realclean:: realclean-ext realclean-local realclean-enc realclean-golf realclean-extout
 realclean-local:: distclean-local
-	$(Q)$(RM) parse.c parse.h lex.c newline.c miniprelude.c revision.h
-realclean-ext::
+	$(Q)$(RM) parse.c parse.h lex.c enc/trans/newline.c revision.h
+	$(Q)$(RM) id.c id.h probes.dmyh
+	$(Q)$(CHDIR) $(srcdir) && $(exec) $(RM) parse.c parse.h lex.c enc/trans/newline.c $(PRELUDES) revision.h
+	$(Q)$(CHDIR) $(srcdir) && $(exec) $(RM) id.c id.h probes.dmyh
+	$(Q)$(CHDIR) $(srcdir) && $(exec) $(RM) configure tool/config.guess tool/config.sub gems/*.gem
+realclean-ext:: PHONY
 realclean-golf: distclean-golf
+	$(Q)$(RM) $(GOLFPRELUDES)
 realclean-capi: PHONY
 realclean-extout: distclean-extout
 
 clean-ext distclean-ext realclean-ext::
 	$(Q)$(RM) $(EXTS_MK)
+	$(Q)$(RM) $(EXTOUT)/.timestamp/.*.time
+	$(Q)$(RMDIR) $(EXTOUT)/.timestamp 2> $(NULL) || exit 0
 
 clean-enc distclean-enc realclean-enc: PHONY
 
-check: main test test-all
+clean-enc: clean-enc.d
+
+clean-enc.d: PHONY
+	$(Q)$(RM) $(ENC_TRANS_D)
+	-$(Q) $(RMDIR) enc/jis enc/trans enc 2> $(NULL) || exit 0
+
+clean-rdoc distclean-rdoc realclean-rdoc:
+	@echo $(@:-rdoc=ing) rdoc
+	$(Q)$(RMALL) $(RDOCOUT)
+
+clean-html distclean-html realclean-html:
+	@echo $(@:-html=ing) HTML
+	$(Q)$(RMALL) $(HTMLOUT)
+
+clean-capi distclean-capi realclean-capi:
+	@echo $(@:-capi=ing) capi
+	$(Q)$(RMALL) $(CAPIOUT)
+
+clean-platform:
+	$(Q) $(RM) $(PLATFORM_D)
+	-$(Q) $(RMDIR) $(PLATFORM_DIR) 2> $(NULL) || exit 0
+
+check: main test test-testframework test-almost
 	$(ECHO) check succeeded
 check-ruby: test test-ruby
 
 fake: $(CROSS_COMPILING)-fake
 yes-fake: $(arch)-fake.rb $(RBCONFIG) PHONY
-no-fake: PHONY
+no-fake -fake: PHONY
+
+# really doesn't depend on .o, just ensure newer than headers which
+# version.o depends on.
+$(arch)-fake.rb: $(srcdir)/template/fake.rb.in $(srcdir)/tool/generic_erb.rb version.$(OBJEXT) miniruby$(EXEEXT)
+	$(ECHO) generating $@
+	$(Q) $(CPP) $(warnflags) $(XCFLAGS) $(CPPFLAGS) "$(srcdir)/version.c" | \
+	$(BOOTSTRAPRUBY) "$(srcdir)/tool/generic_erb.rb" -o $@ "$(srcdir)/template/fake.rb.in" \
+		i=- srcdir="$(srcdir)" BASERUBY="$(BASERUBY)"
 
 btest: $(TEST_RUNNABLE)-btest
 no-btest: PHONY
 yes-btest: fake miniruby$(EXEEXT) PHONY
-	$(BOOTSTRAPRUBY) "$(srcdir)/bootstraptest/runner.rb" --ruby="$(BTESTRUBY)" $(OPTS) $(TESTOPTS)
+	$(Q)$(exec) $(BOOTSTRAPRUBY) "$(srcdir)/bootstraptest/runner.rb" --ruby="$(BTESTRUBY) $(RUN_OPTS)" $(OPTS) $(TESTOPTS)
 
 btest-ruby: $(TEST_RUNNABLE)-btest-ruby
 no-btest-ruby: PHONY
 yes-btest-ruby: prog PHONY
-	$(Q)$(RUNRUBY) "$(srcdir)/bootstraptest/runner.rb" --ruby="$(PROGRAM) -I$(srcdir)/lib" -q $(OPTS) $(TESTOPTS)
+	$(Q)$(exec) $(RUNRUBY) "$(srcdir)/bootstraptest/runner.rb" --ruby="$(PROGRAM) -I$(srcdir)/lib $(RUN_OPTS)" -q $(OPTS) $(TESTOPTS)
 
 test-sample: $(TEST_RUNNABLE)-test-sample
 no-test-sample: PHONY
 yes-test-sample: prog PHONY
-	$(Q)$(RUNRUBY) $(srcdir)/tool/rubytest.rb $(OPTS) $(TESTOPTS)
+	$(Q)$(exec) $(RUNRUBY) "$(srcdir)/tool/rubytest.rb" --run-opt=$(RUN_OPTS) $(OPTS) $(TESTOPTS)
 
 test-knownbugs: test-knownbug
 test-knownbug: $(TEST_RUNNABLE)-test-knownbug
 no-test-knownbug: PHONY
 yes-test-knownbug: prog PHONY
-	-$(RUNRUBY) "$(srcdir)/bootstraptest/runner.rb" --ruby="$(PROGRAM)" $(OPTS) $(TESTOPTS) $(srcdir)/KNOWNBUGS.rb
+	-$(exec) $(RUNRUBY) "$(srcdir)/bootstraptest/runner.rb" --ruby="$(PROGRAM) $(RUN_OPTS)" $(OPTS) $(TESTOPTS) $(srcdir)/KNOWNBUGS.rb
+
+test-testframework: $(TEST_RUNNABLE)-test-testframework
+yes-test-testframework: prog PHONY
+	$(Q)$(exec) $(RUNRUBY) "$(srcdir)/test/runner.rb" --ruby="$(RUNRUBY)" $(TESTOPTS) testunit minitest
+no-test-testframework: PHONY
 
 test: test-sample btest-ruby test-knownbug
 
+# $ make test-all TESTOPTS="--help" displays more detail
+# for example, make test-all TESTOPTS="-j2 -v -n test-name -- test-file-name"
 test-all: $(TEST_RUNNABLE)-test-all
 yes-test-all: prog PHONY
-	$(RUNRUBY) "$(srcdir)/test/runner.rb" --ruby="$(RUNRUBY)" $(TESTOPTS) $(TESTS)
+	$(Q)$(exec) $(RUNRUBY) "$(srcdir)/test/runner.rb" --ruby="$(RUNRUBY)" $(TEST_EXCLUDES) $(TESTOPTS) $(TESTS)
 TESTS_BUILD = mkmf
 no-test-all: PHONY
 	$(MINIRUBY) -I"$(srcdir)/lib" "$(srcdir)/test/runner.rb" $(TESTOPTS) $(TESTS_BUILD)
 
+test-almost: $(TEST_RUNNABLE)-test-almost
+yes-test-almost: prog PHONY
+	$(Q)$(exec) $(RUNRUBY) "$(srcdir)/test/runner.rb" --ruby="$(RUNRUBY)" $(TEST_EXCLUDES) $(TESTOPTS) $(EXCLUDE_TESTFRAMEWORK) $(TESTS)
+no-test-almost: PHONY
+
 test-ruby: $(TEST_RUNNABLE)-test-ruby
 no-test-ruby: PHONY
 yes-test-ruby: prog encs PHONY
-	$(RUNRUBY) "$(srcdir)/test/runner.rb" -q $(TESTOPTS) -- ruby -ext-
+	$(RUNRUBY) "$(srcdir)/test/runner.rb" $(TEST_EXCLUDES) $(TESTOPTS) -- ruby -ext-
 
 extconf: $(PREP)
 	$(Q) $(MAKEDIRS) "$(EXTCONFDIR)"
 	$(RUNRUBY) -C "$(EXTCONFDIR)" $(EXTCONF) $(EXTCONFARGS)
 
-$(RBCONFIG): $(srcdir)/tool/mkconfig.rb config.status $(srcdir)/version.h $(PREP)
-	$(Q)$(MINIRUBY) $(srcdir)/tool/mkconfig.rb -timestamp=$@ \
+$(RBCONFIG): $(srcdir)/tool/mkconfig.rb config.status $(srcdir)/version.h
+	$(Q)$(BOOTSTRAPRUBY) $(srcdir)/tool/mkconfig.rb -timestamp=$@ \
+		-arch=$(arch) -version=$(RUBY_PROGRAM_VERSION) \
 		-install_name=$(RUBY_INSTALL_NAME) \
 		-so_name=$(RUBY_SO_NAME) rbconfig.rb
 
 test-rubyspec-precheck:
 
-test-rubyspec: test-rubyspec-precheck
-	$(RUNRUBY) $(srcdir)/spec/mspec/bin/mspec run -B $(srcdir)/spec/default.mspec $(MSPECOPT)
+test-rubyspec: test-rubyspec-precheck $(arch)-fake.rb
+	$(RUNRUBY) -r./$(arch)-fake $(srcdir)/spec/mspec/bin/mspec run -B $(srcdir)/spec/default.mspec $(MSPECOPT)
 
 RUNNABLE = $(LIBRUBY_RELATIVE:no=un)-runnable
 runnable: $(RUNNABLE) prog $(srcdir)/tool/mkrunnable.rb PHONY
@@ -541,7 +639,7 @@ yes-runnable: PHONY
 
 encs: enc trans
 libencs: libenc libtrans
-encs enc trans libencs libenc libtrans: showflags $(ENC_MK) $(LIBRUBY) $(PREP)
+encs enc trans libencs libenc libtrans: $(SHOWFLAGS) $(ENC_MK) $(LIBRUBY) $(PREP) PHONY
 	$(ECHO) making $@
 	$(Q) $(MAKE) -f $(ENC_MK) V="$(V)" \
 		RUBY="$(MINIRUBY)" MINIRUBY="$(MINIRUBY)" \
@@ -552,16 +650,16 @@ libenc enc: {$(VPATH)}encdb.h
 libtrans trans: {$(VPATH)}transdb.h
 
 $(ENC_MK): $(srcdir)/enc/make_encmake.rb $(srcdir)/enc/Makefile.in $(srcdir)/enc/depend \
-	$(srcdir)/enc/encinit.c.erb $(srcdir)/lib/mkmf.rb $(RBCONFIG)
+	$(srcdir)/enc/encinit.c.erb $(srcdir)/lib/mkmf.rb $(RBCONFIG) fake
 	$(ECHO) generating $@
-	$(Q) $(MINIRUBY) $(srcdir)/enc/make_encmake.rb --builtin-encs="$(BUILTIN_ENCOBJS)" --builtin-transes="$(BUILTIN_TRANSOBJS)" --module$(EXTSTATIC) $@ $(ENCS)
+	$(Q) $(MINIRUBY) $(srcdir)/enc/make_encmake.rb --builtin-encs="$(BUILTIN_ENCOBJS)" --builtin-transes="$(BUILTIN_TRANSOBJS)" --module$(ENCSTATIC) $(ENCS) $@
 
 .PRECIOUS: $(MKFILES)
 
 .PHONY: PHONY all fake prereq incs srcs preludes help
 .PHONY: test install install-nodoc install-doc dist
 .PHONY: loadpath golf capi rdoc install-prereq clear-installed-list
-.PHONY: clean clean-ext clean-local clean-enc clean-golf clean-rdoc clean-extout
+.PHONY: clean clean-ext clean-local clean-enc clean-golf clean-rdoc clean-html clean-extout
 .PHONY: distclean distclean-ext distclean-local distclean-enc distclean-golf distclean-extout
 .PHONY: realclean realclean-ext realclean-local realclean-enc realclean-golf realclean-extout
 .PHONY: check test test-all btest btest-ruby test-sample test-knownbug
@@ -583,17 +681,37 @@ PHONY:
 	$(Q)sed -e "/^#line.*y\.tab\.h/d;/^#line.*parse.*\.y/d" y.tab.h > $(@:.c=.h)
 	$(Q)$(RM) y.tab.c y.tab.h
 
+$(PLATFORM_D):
+	$(Q) $(MAKEDIRS) $(PLATFORM_DIR)
+	@exit > $@
+
+$(BUILTIN_ENCOBJS) $(BUILTIN_TRANSOBJS): $(ENC_TRANS_D)
+
+$(ENC_TRANS_D):
+	$(Q) $(MAKEDIRS) enc/trans
+	@exit > $@
+
+###
+CCAN_DIR = {$(VPATH)}ccan
+
+RUBY_H_INCLUDES    = {$(VPATH)}ruby.h {$(VPATH)}config.h {$(VPATH)}defines.h \
+		     {$(VPATH)}intern.h {$(VPATH)}missing.h {$(VPATH)}st.h \
+		     {$(VPATH)}subst.h
+
+###
+
 acosh.$(OBJEXT): {$(VPATH)}acosh.c
 alloca.$(OBJEXT): {$(VPATH)}alloca.c {$(VPATH)}config.h
 crypt.$(OBJEXT): {$(VPATH)}crypt.c
 dup2.$(OBJEXT): {$(VPATH)}dup2.c
 erf.$(OBJEXT): {$(VPATH)}erf.c
+explicit_bzero.$(OBJEXT): {$(VPATH)}explicit_bzero.c
 finite.$(OBJEXT): {$(VPATH)}finite.c
 flock.$(OBJEXT): {$(VPATH)}flock.c
 memcmp.$(OBJEXT): {$(VPATH)}memcmp.c
 memmove.$(OBJEXT): {$(VPATH)}memmove.c
 mkdir.$(OBJEXT): {$(VPATH)}mkdir.c
-setproctitle.$(OBJEXT): {$(VPATH)}setproctitle.c {$(VPATH)}util.h $(RUBY_H_INCLUDES)
+setproctitle.$(OBJEXT): {$(VPATH)}setproctitle.c
 strchr.$(OBJEXT): {$(VPATH)}strchr.c
 strdup.$(OBJEXT): {$(VPATH)}strdup.c
 strerror.$(OBJEXT): {$(VPATH)}strerror.c
@@ -603,233 +721,35 @@ strstr.$(OBJEXT): {$(VPATH)}strstr.c
 strtod.$(OBJEXT): {$(VPATH)}strtod.c
 strtol.$(OBJEXT): {$(VPATH)}strtol.c
 nt.$(OBJEXT): {$(VPATH)}nt.c
-os2.$(OBJEXT): {$(VPATH)}os2.c
-dl_os2.$(OBJEXT): {$(VPATH)}dl_os2.c
 ia64.$(OBJEXT): {$(VPATH)}ia64.s
 	$(CC) $(CFLAGS) -c $<
 
-$(PLATFORM_D):
-	$(Q) $(MAKEDIRS) $(PLATFORM_DIR)
-	@exit > $@
-
 ###
 
-RUBY_H_INCLUDES    = {$(VPATH)}ruby.h {$(VPATH)}config.h {$(VPATH)}defines.h \
-		     {$(VPATH)}intern.h {$(VPATH)}missing.h {$(VPATH)}st.h \
-		     {$(VPATH)}subst.h
-ENCODING_H_INCLUDES= {$(VPATH)}encoding.h {$(VPATH)}oniguruma.h
-PROBES_H_INCLUDES  = {$(VPATH)}probes.h
-VM_CORE_H_INCLUDES = {$(VPATH)}vm_core.h {$(VPATH)}thread_$(THREAD_MODEL).h \
-		     {$(VPATH)}node.h {$(VPATH)}method.h {$(VPATH)}ruby_atomic.h \
-	             {$(VPATH)}vm_debug.h {$(VPATH)}id.h
-
-addr2line.$(OBJEXT): {$(VPATH)}addr2line.c {$(VPATH)}addr2line.h {$(VPATH)}config.h
-array.$(OBJEXT): {$(VPATH)}array.c $(RUBY_H_INCLUDES) {$(VPATH)}util.h \
-  $(ENCODING_H_INCLUDES) {$(VPATH)}internal.h $(PROBES_H_INCLUDES) {$(VPATH)}id.h
-bignum.$(OBJEXT): {$(VPATH)}bignum.c $(RUBY_H_INCLUDES) {$(VPATH)}util.h \
-  {$(VPATH)}thread.h {$(VPATH)}internal.h
-class.$(OBJEXT): {$(VPATH)}class.c $(RUBY_H_INCLUDES) \
-  $(VM_CORE_H_INCLUDES) {$(VPATH)}internal.h {$(VPATH)}constant.h
-compar.$(OBJEXT): {$(VPATH)}compar.c $(RUBY_H_INCLUDES)
-complex.$(OBJEXT): {$(VPATH)}complex.c $(RUBY_H_INCLUDES) \
-  {$(VPATH)}internal.h
-dir.$(OBJEXT): {$(VPATH)}dir.c $(RUBY_H_INCLUDES) {$(VPATH)}util.h \
-  $(ENCODING_H_INCLUDES) \
-  {$(VPATH)}internal.h
-dln.$(OBJEXT): {$(VPATH)}dln.c {$(VPATH)}dln.h $(RUBY_H_INCLUDES)
-dln_find.$(OBJEXT): {$(VPATH)}dln_find.c {$(VPATH)}dln.h $(RUBY_H_INCLUDES)
-dmydln.$(OBJEXT): {$(VPATH)}dmydln.c $(RUBY_H_INCLUDES)
-dmyext.$(OBJEXT): {$(VPATH)}dmyext.c
-dmyencoding.$(OBJEXT): {$(VPATH)}dmyencoding.c $(RUBY_H_INCLUDES) \
-  {$(VPATH)}regenc.h {$(VPATH)}util.h $(ENCODING_H_INCLUDES) \
-  {$(VPATH)}encoding.c {$(VPATH)}internal.h
-encoding.$(OBJEXT): {$(VPATH)}encoding.c $(RUBY_H_INCLUDES) \
-  $(ENCODING_H_INCLUDES) {$(VPATH)}regenc.h {$(VPATH)}util.h \
-  {$(VPATH)}internal.h
-enum.$(OBJEXT): {$(VPATH)}enum.c $(RUBY_H_INCLUDES) {$(VPATH)}node.h \
-  {$(VPATH)}util.h {$(VPATH)}id.h
-enumerator.$(OBJEXT): {$(VPATH)}enumerator.c $(RUBY_H_INCLUDES) \
-  {$(VPATH)}internal.h
-error.$(OBJEXT): {$(VPATH)}error.c {$(VPATH)}known_errors.inc \
-  $(RUBY_H_INCLUDES) $(VM_CORE_H_INCLUDES) $(ENCODING_H_INCLUDES) \
-  {$(VPATH)}internal.h
-eval.$(OBJEXT): {$(VPATH)}eval.c {$(VPATH)}eval_intern.h {$(VPATH)}vm.h \
-  $(RUBY_H_INCLUDES) $(VM_CORE_H_INCLUDES) {$(VPATH)}eval_error.c \
-  {$(VPATH)}eval_jump.c {$(VPATH)}gc.h {$(VPATH)}iseq.h \
-  $(ENCODING_H_INCLUDES) {$(VPATH)}internal.h $(PROBES_H_INCLUDES)
-load.$(OBJEXT): {$(VPATH)}load.c {$(VPATH)}eval_intern.h \
-  {$(VPATH)}util.h $(RUBY_H_INCLUDES) $(VM_CORE_H_INCLUDES) \
-  {$(VPATH)}dln.h {$(VPATH)}internal.h $(PROBES_H_INCLUDES)
-file.$(OBJEXT): {$(VPATH)}file.c $(RUBY_H_INCLUDES) {$(VPATH)}io.h \
-  $(ENCODING_H_INCLUDES) {$(VPATH)}util.h {$(VPATH)}dln.h \
-  {$(VPATH)}internal.h
-gc.$(OBJEXT): {$(VPATH)}gc.c $(RUBY_H_INCLUDES) {$(VPATH)}re.h \
-  {$(VPATH)}regex.h $(ENCODING_H_INCLUDES) $(VM_CORE_H_INCLUDES) \
-  {$(VPATH)}gc.h {$(VPATH)}io.h {$(VPATH)}eval_intern.h {$(VPATH)}util.h \
-  {$(VPATH)}internal.h {$(VPATH)}constant.h \
-  {$(VPATH)}thread.h $(PROBES_H_INCLUDES)
-hash.$(OBJEXT): {$(VPATH)}hash.c $(RUBY_H_INCLUDES) {$(VPATH)}util.h \
-  $(ENCODING_H_INCLUDES) {$(VPATH)}internal.h $(PROBES_H_INCLUDES)
-inits.$(OBJEXT): {$(VPATH)}inits.c $(RUBY_H_INCLUDES) \
-  {$(VPATH)}internal.h
-io.$(OBJEXT): {$(VPATH)}io.c $(RUBY_H_INCLUDES) {$(VPATH)}io.h \
-  {$(VPATH)}util.h $(ENCODING_H_INCLUDES) {$(VPATH)}dln.h \
-  {$(VPATH)}internal.h {$(VPATH)}thread.h {$(VPATH)}id.h
-main.$(OBJEXT): {$(VPATH)}main.c $(RUBY_H_INCLUDES) {$(VPATH)}node.h {$(VPATH)}vm_debug.h
-marshal.$(OBJEXT): {$(VPATH)}marshal.c $(RUBY_H_INCLUDES) {$(VPATH)}io.h \
-  $(ENCODING_H_INCLUDES) {$(VPATH)}util.h {$(VPATH)}internal.h
-math.$(OBJEXT): {$(VPATH)}math.c $(RUBY_H_INCLUDES) \
-  {$(VPATH)}internal.h
-node.$(OBJEXT): {$(VPATH)}node.c $(RUBY_H_INCLUDES) \
-  $(VM_CORE_H_INCLUDES)
-numeric.$(OBJEXT): {$(VPATH)}numeric.c $(RUBY_H_INCLUDES) \
-  {$(VPATH)}util.h $(ENCODING_H_INCLUDES) {$(VPATH)}internal.h {$(VPATH)}id.h
-object.$(OBJEXT): {$(VPATH)}object.c $(RUBY_H_INCLUDES) {$(VPATH)}util.h \
-  {$(VPATH)}internal.h {$(VPATH)}constant.h $(ENCODING_H_INCLUDES) $(PROBES_H_INCLUDES)
-pack.$(OBJEXT): {$(VPATH)}pack.c $(RUBY_H_INCLUDES) {$(VPATH)}encoding.h \
-  {$(VPATH)}oniguruma.h
-parse.$(OBJEXT): {$(VPATH)}parse.c $(RUBY_H_INCLUDES) {$(VPATH)}node.h \
-  $(ENCODING_H_INCLUDES) {$(VPATH)}id.h {$(VPATH)}regenc.h \
-  {$(VPATH)}regex.h {$(VPATH)}util.h {$(VPATH)}lex.c \
-  {$(VPATH)}defs/keywords {$(VPATH)}id.c {$(VPATH)}parse.y \
-  {$(VPATH)}parse.h {$(VPATH)}internal.h $(PROBES_H_INCLUDES)
-proc.$(OBJEXT): {$(VPATH)}proc.c {$(VPATH)}eval_intern.h \
-  $(RUBY_H_INCLUDES) {$(VPATH)}gc.h $(VM_CORE_H_INCLUDES) \
-  {$(VPATH)}internal.h {$(VPATH)}iseq.h
-process.$(OBJEXT): {$(VPATH)}process.c $(RUBY_H_INCLUDES) \
-  {$(VPATH)}util.h {$(VPATH)}io.h $(ENCODING_H_INCLUDES) {$(VPATH)}dln.h \
-  $(VM_CORE_H_INCLUDES) {$(VPATH)}internal.h \
-  {$(VPATH)}thread.h
-random.$(OBJEXT): {$(VPATH)}random.c $(RUBY_H_INCLUDES) \
-  {$(VPATH)}siphash.c {$(VPATH)}siphash.h
-range.$(OBJEXT): {$(VPATH)}range.c $(RUBY_H_INCLUDES) \
-  $(ENCODING_H_INCLUDES) {$(VPATH)}internal.h {$(VPATH)}id.h
-rational.$(OBJEXT): {$(VPATH)}rational.c $(RUBY_H_INCLUDES) {$(VPATH)}internal.h
-re.$(OBJEXT): {$(VPATH)}re.c $(RUBY_H_INCLUDES) {$(VPATH)}re.h \
-  {$(VPATH)}regex.h $(ENCODING_H_INCLUDES) {$(VPATH)}util.h \
-  {$(VPATH)}regint.h {$(VPATH)}regenc.h {$(VPATH)}internal.h
-regcomp.$(OBJEXT): {$(VPATH)}regcomp.c {$(VPATH)}regparse.h \
-  {$(VPATH)}regint.h {$(VPATH)}regenc.h {$(VPATH)}oniguruma.h \
-  $(RUBY_H_INCLUDES)
-regenc.$(OBJEXT): {$(VPATH)}regenc.c {$(VPATH)}regint.h \
-  {$(VPATH)}regenc.h {$(VPATH)}oniguruma.h $(RUBY_H_INCLUDES)
-regerror.$(OBJEXT): {$(VPATH)}regerror.c {$(VPATH)}regint.h \
-  {$(VPATH)}regenc.h {$(VPATH)}oniguruma.h $(RUBY_H_INCLUDES)
-regexec.$(OBJEXT): {$(VPATH)}regexec.c {$(VPATH)}regint.h \
-  {$(VPATH)}regenc.h {$(VPATH)}oniguruma.h $(RUBY_H_INCLUDES)
-regparse.$(OBJEXT): {$(VPATH)}regparse.c {$(VPATH)}regparse.h \
-  {$(VPATH)}regint.h {$(VPATH)}regenc.h {$(VPATH)}oniguruma.h \
-  $(RUBY_H_INCLUDES)
-regsyntax.$(OBJEXT): {$(VPATH)}regsyntax.c {$(VPATH)}regint.h \
-  {$(VPATH)}regenc.h {$(VPATH)}oniguruma.h $(RUBY_H_INCLUDES)
-ruby.$(OBJEXT): {$(VPATH)}ruby.c $(RUBY_H_INCLUDES) {$(VPATH)}util.h \
-  $(ENCODING_H_INCLUDES) {$(VPATH)}eval_intern.h $(VM_CORE_H_INCLUDES) \
-  {$(VPATH)}dln.h {$(VPATH)}internal.h
-safe.$(OBJEXT): {$(VPATH)}safe.c $(RUBY_H_INCLUDES) $(VM_CORE_H_INCLUDES)
-signal.$(OBJEXT): {$(VPATH)}signal.c $(RUBY_H_INCLUDES) \
-  $(VM_CORE_H_INCLUDES)
-sprintf.$(OBJEXT): {$(VPATH)}sprintf.c $(RUBY_H_INCLUDES) {$(VPATH)}re.h \
-  {$(VPATH)}regex.h {$(VPATH)}vsnprintf.c $(ENCODING_H_INCLUDES)
-st.$(OBJEXT): {$(VPATH)}st.c $(RUBY_H_INCLUDES)
-strftime.$(OBJEXT): {$(VPATH)}strftime.c $(RUBY_H_INCLUDES) \
-  {$(VPATH)}timev.h $(ENCODING_H_INCLUDES)
-string.$(OBJEXT): {$(VPATH)}string.c $(RUBY_H_INCLUDES) {$(VPATH)}re.h \
-  {$(VPATH)}regex.h $(ENCODING_H_INCLUDES) {$(VPATH)}internal.h $(PROBES_H_INCLUDES)
-struct.$(OBJEXT): {$(VPATH)}struct.c $(RUBY_H_INCLUDES) {$(VPATH)}internal.h
-thread.$(OBJEXT): {$(VPATH)}thread.c {$(VPATH)}eval_intern.h \
-  $(RUBY_H_INCLUDES) {$(VPATH)}gc.h $(VM_CORE_H_INCLUDES) \
-  {$(VPATH)}thread_$(THREAD_MODEL).c $(ENCODING_H_INCLUDES) \
-  {$(VPATH)}internal.h {$(VPATH)}io.h {$(VPATH)}thread.h
-transcode.$(OBJEXT): {$(VPATH)}transcode.c $(RUBY_H_INCLUDES) \
-  $(ENCODING_H_INCLUDES) {$(VPATH)}transcode_data.h {$(VPATH)}internal.h
-cont.$(OBJEXT): {$(VPATH)}cont.c $(RUBY_H_INCLUDES) \
-  $(VM_CORE_H_INCLUDES) {$(VPATH)}gc.h {$(VPATH)}eval_intern.h \
-  {$(VPATH)}internal.h
-time.$(OBJEXT): {$(VPATH)}time.c $(RUBY_H_INCLUDES) \
-  $(ENCODING_H_INCLUDES) {$(VPATH)}timev.h {$(VPATH)}internal.h
-util.$(OBJEXT): {$(VPATH)}util.c $(RUBY_H_INCLUDES) {$(VPATH)}util.h \
-  {$(VPATH)}internal.h
-variable.$(OBJEXT): {$(VPATH)}variable.c $(RUBY_H_INCLUDES) \
-  {$(VPATH)}node.h {$(VPATH)}util.h {$(VPATH)}encoding.h \
-  {$(VPATH)}oniguruma.h {$(VPATH)}internal.h {$(VPATH)}constant.h
-version.$(OBJEXT): {$(VPATH)}version.c $(RUBY_H_INCLUDES) \
-  {$(VPATH)}version.h $(srcdir)/version.h $(srcdir)/revision.h {$(VPATH)}config.h \
-  verconf.h
-dmyversion.$(OBJEXT): {$(VPATH)}dmyversion.c version.$(OBJEXT)
-
-compile.$(OBJEXT): {$(VPATH)}compile.c {$(VPATH)}iseq.h \
-  $(RUBY_H_INCLUDES) $(VM_CORE_H_INCLUDES) {$(VPATH)}insns.inc \
-  {$(VPATH)}insns_info.inc {$(VPATH)}optinsn.inc \
-  {$(VPATH)}optunifs.inc {$(VPATH)}opt_sc.inc {$(VPATH)}insns.inc \
-  {$(VPATH)}internal.h
-iseq.$(OBJEXT): {$(VPATH)}iseq.c {$(VPATH)}gc.h {$(VPATH)}iseq.h \
-  $(RUBY_H_INCLUDES) $(VM_CORE_H_INCLUDES) {$(VPATH)}insns.inc \
-  {$(VPATH)}insns_info.inc {$(VPATH)}node_name.inc {$(VPATH)}internal.h
-vm.$(OBJEXT): {$(VPATH)}vm.c {$(VPATH)}gc.h {$(VPATH)}iseq.h \
-  {$(VPATH)}eval_intern.h $(RUBY_H_INCLUDES) $(ENCODING_H_INCLUDES) \
-  $(VM_CORE_H_INCLUDES) {$(VPATH)}vm_method.c {$(VPATH)}vm_eval.c \
-  {$(VPATH)}vm_insnhelper.c {$(VPATH)}vm_insnhelper.h {$(VPATH)}vm_exec.c \
-  {$(VPATH)}vm_exec.h {$(VPATH)}insns.def {$(VPATH)}vmtc.inc \
-  {$(VPATH)}vm.inc {$(VPATH)}insns.inc \
-  {$(VPATH)}internal.h {$(VPATH)}vm.h {$(VPATH)}constant.h \
-  $(PROBES_H_INCLUDES) {$(VPATH)}probes_helper.h
-vm_dump.$(OBJEXT): {$(VPATH)}vm_dump.c $(RUBY_H_INCLUDES) \
-  $(VM_CORE_H_INCLUDES) {$(VPATH)}addr2line.h \
-  {$(VPATH)}internal.h
-debug.$(OBJEXT): {$(VPATH)}debug.c $(RUBY_H_INCLUDES) \
-  $(ENCODING_H_INCLUDES) $(VM_CORE_H_INCLUDES) {$(VPATH)}eval_intern.h \
-  {$(VPATH)}util.h
-id.$(OBJEXT): {$(VPATH)}id.c $(RUBY_H_INCLUDES) {$(VPATH)}id.h {$(VPATH)}vm_opts.h
-vm_backtrace.$(OBJEXT): {$(VPATH)}vm_backtrace.c \
-  $(VM_CORE_H_INCLUDES) $(RUBY_H_INCLUDES) $(ENCODING_H_INCLUDES) \
-  {$(VPATH)}internal.h {$(VPATH)}iseq.h {$(VPATH)}debug.h
-vm_trace.$(OBJEXT): {$(VPATH)}vm_trace.c $(ENCODING_H_INCLUDES) \
-  $(VM_CORE_H_INCLUDES) $(RUBY_H_INCLUDES) {$(VPATH)}debug.h \
-  {$(VPATH)}internal.h
-miniprelude.$(OBJEXT): {$(VPATH)}miniprelude.c $(RUBY_H_INCLUDES) \
-  $(VM_CORE_H_INCLUDES) {$(VPATH)}internal.h
-prelude.$(OBJEXT): {$(VPATH)}prelude.c $(RUBY_H_INCLUDES) \
-  $(VM_CORE_H_INCLUDES) {$(VPATH)}internal.h
-golf_prelude.$(OBJEXT): {$(VPATH)}golf_prelude.c $(RUBY_H_INCLUDES) \
-  $(VM_CORE_H_INCLUDES) {$(VPATH)}internal.h
-goruby.$(OBJEXT): {$(VPATH)}goruby.c {$(VPATH)}main.c $(RUBY_H_INCLUDES) \
-  {$(VPATH)}vm_debug.h {$(VPATH)}node.h
-
-ascii.$(OBJEXT): {$(VPATH)}ascii.c {$(VPATH)}regenc.h {$(VPATH)}config.h \
-  {$(VPATH)}oniguruma.h {$(VPATH)}missing.h $(RUBY_H_INCLUDES)
-us_ascii.$(OBJEXT): {$(VPATH)}us_ascii.c {$(VPATH)}regenc.h \
-  {$(VPATH)}config.h {$(VPATH)}oniguruma.h {$(VPATH)}missing.h $(RUBY_H_INCLUDES)
-unicode.$(OBJEXT): {$(VPATH)}unicode.c {$(VPATH)}regint.h \
-  {$(VPATH)}config.h {$(VPATH)}defines.h {$(VPATH)}regenc.h \
-  {$(VPATH)}oniguruma.h {$(VPATH)}st.h {$(VPATH)}ruby.h \
-  {$(VPATH)}missing.h {$(VPATH)}intern.h \
-  {$(VPATH)}enc/unicode/name2ctype.h {$(VPATH)}enc/unicode/casefold.h  \
-  {$(VPATH)}subst.h $(RUBY_H_INCLUDES)
-
-utf_8.$(OBJEXT): {$(VPATH)}utf_8.c {$(VPATH)}regenc.h {$(VPATH)}config.h \
-  {$(VPATH)}oniguruma.h {$(VPATH)}missing.h $(RUBY_H_INCLUDES)
-
-win32/win32.$(OBJEXT): {$(VPATH)}win32/win32.c $(RUBY_H_INCLUDES) $(PLATFORM_D)
-win32/file.$(OBJEXT): {$(VPATH)}win32/file.c $(RUBY_H_INCLUDES) $(PLATFORM_D)
+# dependencies for generated C sources.
+parse.$(OBJEXT): {$(VPATH)}parse.c
+miniprelude.$(OBJEXT): {$(VPATH)}miniprelude.c
+prelude.$(OBJEXT): {$(VPATH)}prelude.c
+
+# dependencies for optional sources.
+compile.$(OBJEXT): {$(VPATH)}opt_sc.inc {$(VPATH)}optunifs.inc
+
+win32/win32.$(OBJEXT): {$(VPATH)}win32/win32.c {$(VPATH)}win32/file.h \
+  {$(VPATH)}dln.h {$(VPATH)}dln_find.c {$(VPATH)}encindex.h \
+  {$(VPATH)}internal.h {$(VPATH)}util.h $(RUBY_H_INCLUDES) $(PLATFORM_D)
+win32/file.$(OBJEXT): {$(VPATH)}win32/file.c {$(VPATH)}win32/file.h \
+  $(RUBY_H_INCLUDES) $(PLATFORM_D)
 
 $(NEWLINE_C): $(srcdir)/enc/trans/newline.trans $(srcdir)/tool/transcode-tblgen.rb
+	$(Q) $(MAKEDIRS) $(@D)
 	$(Q) $(BASERUBY) "$(srcdir)/tool/transcode-tblgen.rb" -vo $@ $(srcdir)/enc/trans/newline.trans
-newline.$(OBJEXT): $(NEWLINE_C) {$(VPATH)}defines.h \
-  {$(VPATH)}intern.h {$(VPATH)}missing.h {$(VPATH)}st.h \
-  {$(VPATH)}transcode_data.h {$(VPATH)}ruby.h {$(VPATH)}config.h {$(VPATH)}subst.h
+enc/trans/newline.$(OBJEXT): $(NEWLINE_C)
 
-DTRACE_DEPENDENT_OBJS = array.$(OBJEXT) \
-		eval.$(OBJEXT) \
-		gc.$(OBJEXT) \
-		hash.$(OBJEXT) \
-		load.$(OBJEXT) \
-		object.$(OBJEXT) \
-		parse.$(OBJEXT) \
-		string.$(OBJEXT) \
-		vm.$(OBJEXT)
+verconf.h: $(srcdir)/template/verconf.h.tmpl $(srcdir)/tool/generic_erb.rb
+	$(ECHO) creating $@
+	$(Q) $(BOOTSTRAPRUBY) "$(srcdir)/tool/generic_erb.rb" -o $@ $(srcdir)/template/verconf.h.tmpl
 
-probes.$(OBJEXT): $(DTRACE_DEPENDENT_OBJS)
-ruby-glommed.$(OBJEXT): $(OBJS) $(DTRACE_OBJ)
+ruby-glommed.$(OBJEXT): $(OBJS)
 
 $(OBJS):  {$(VPATH)}config.h {$(VPATH)}missing.h
 
@@ -851,32 +771,43 @@ INSNS2VMOPT = --srcdir="$(srcdir)"
 
 {$(VPATH)}vm.inc: $(srcdir)/template/vm.inc.tmpl
 
-srcs: {$(VPATH)}parse.c {$(VPATH)}lex.c {$(VPATH)}newline.c {$(VPATH)}id.c srcs-ext srcs-enc
+common-srcs: {$(VPATH)}parse.c {$(VPATH)}lex.c {$(VPATH)}enc/trans/newline.c {$(VPATH)}id.c \
+	     srcs-lib srcs-ext
+
+srcs: common-srcs srcs-enc
 
-EXT_SRCS = $(srcdir)/ext/ripper/ripper.c $(srcdir)/ext/json/parser/parser.c \
-	   $(srcdir)/ext/dl/callback/callback.c
+EXT_SRCS = $(srcdir)/ext/ripper/ripper.c \
+	   $(srcdir)/ext/rbconfig/sizeof/sizes.c
 
 srcs-ext: $(EXT_SRCS)
 
+srcs-extra: $(srcdir)/ext/json/parser/parser.c
+
+LIB_SRCS = $(srcdir)/lib/unicode_normalize/tables.rb
+
+srcs-lib: $(LIB_SRCS)
+
 srcs-enc: $(ENC_MK)
 	$(ECHO) making srcs under enc
 	$(Q) $(MAKE) -f $(ENC_MK) RUBY="$(MINIRUBY)" MINIRUBY="$(MINIRUBY)" $(MFLAGS) srcs
 
-all-incs: incs
-incs: $(INSNS) {$(VPATH)}node_name.inc {$(VPATH)}encdb.h {$(VPATH)}transdb.h {$(VPATH)}known_errors.inc \
-      $(srcdir)/revision.h $(REVISION_H) enc/unicode/name2ctype.h {$(VPATH)}id.h {$(VPATH)}probes.dmyh
+all-incs: incs {$(VPATH)}encdb.h {$(VPATH)}transdb.h
+incs: $(INSNS) {$(VPATH)}node_name.inc {$(VPATH)}known_errors.inc \
+      {$(VPATH)}vm_call_iseq_optimized.inc $(srcdir)/revision.h \
+      $(REVISION_H) enc/unicode/name2ctype.h enc/jis/props.h \
+      {$(VPATH)}id.h {$(VPATH)}probes.dmyh
 
 insns: $(INSNS)
 
 id.h: $(srcdir)/tool/generic_erb.rb $(srcdir)/template/id.h.tmpl $(srcdir)/defs/id.def
 	$(ECHO) generating $@
 	$(Q) $(BASERUBY) $(srcdir)/tool/generic_erb.rb --output=$@ \
-		$(srcdir)/template/$@.tmpl
+		$(srcdir)/template/id.h.tmpl
 
 id.c: $(srcdir)/tool/generic_erb.rb $(srcdir)/template/id.c.tmpl $(srcdir)/defs/id.def
 	$(ECHO) generating $@
 	$(Q) $(BASERUBY) $(srcdir)/tool/generic_erb.rb --output=$@ \
-		$(srcdir)/template/$@.tmpl
+		$(srcdir)/template/id.c.tmpl
 
 node_name.inc: {$(VPATH)}node.h
 	$(ECHO) generating $@
@@ -896,20 +827,27 @@ known_errors.inc: $(srcdir)/template/known_errors.inc.tmpl $(srcdir)/defs/known_
 	$(ECHO) generating $@
 	$(Q) $(BASERUBY) $(srcdir)/tool/generic_erb.rb -c -o $@ $(srcdir)/template/known_errors.inc.tmpl $(srcdir)/defs/known_errors.def
 
-$(MINIPRELUDE_C): $(srcdir)/tool/compile_prelude.rb $(srcdir)/prelude.rb
+vm_call_iseq_optimized.inc: $(srcdir)/tool/mk_call_iseq_optimized.rb
 	$(ECHO) generating $@
-	$(Q) $(BASERUBY) -I$(srcdir) $(srcdir)/tool/compile_prelude.rb $(srcdir)/prelude.rb $@
+	$(Q) $(BASERUBY) $(srcdir)/tool/mk_call_iseq_optimized.rb > $@
 
-prelude.c: $(srcdir)/tool/compile_prelude.rb $(RBCONFIG) \
-	   $(srcdir)/lib/rubygems/defaults.rb \
-	   $(srcdir)/lib/rubygems/core_ext/kernel_gem.rb \
-	   $(PRELUDE_SCRIPTS) $(PREP)
+$(MINIPRELUDE_C): $(COMPILE_PRELUDE)
 	$(ECHO) generating $@
-	$(Q) $(COMPILE_PRELUDE) $(PRELUDE_SCRIPTS) $@
+	$(Q) $(BASERUBY) $(srcdir)/tool/generic_erb.rb -I$(srcdir) -o $@ \
+		$(srcdir)/template/prelude.c.tmpl
 
-golf_prelude.c: $(srcdir)/tool/compile_prelude.rb $(RBCONFIG) $(srcdir)/prelude.rb $(srcdir)/golf_prelude.rb $(PREP)
+$(PRELUDE_C): $(COMPILE_PRELUDE) \
+	   {$(srcdir)}lib/rubygems/defaults.rb \
+	   {$(srcdir)}lib/rubygems/core_ext/kernel_gem.rb \
+	   $(PRELUDE_SCRIPTS) $(LIB_SRCS)
 	$(ECHO) generating $@
-	$(Q) $(COMPILE_PRELUDE) $(srcdir)/golf_prelude.rb $@
+	$(Q) $(BASERUBY) $(srcdir)/tool/generic_erb.rb -I$(srcdir) -c -o $@ \
+		$(srcdir)/template/prelude.c.tmpl $(PRELUDE_SCRIPTS)
+
+{$(VPATH)}golf_prelude.c: $(COMPILE_PRELUDE) {$(srcdir)}golf_prelude.rb
+	$(ECHO) generating $@
+	$(Q) $(BASERUBY) $(srcdir)/tool/generic_erb.rb -I$(srcdir) -c -o $@ \
+		$(srcdir)/template/prelude.c.tmpl golf_prelude.rb
 
 probes.dmyh: {$(srcdir)}probes.d $(srcdir)/tool/gen_dummy_probes.rb
 	$(BASERUBY) $(srcdir)/tool/gen_dummy_probes.rb $(srcdir)/probes.d > $@
@@ -918,6 +856,7 @@ probes.h: {$(VPATH)}probes.$(DTRACE_EXT)
 
 prereq: incs srcs preludes PHONY
 
+preludes: {$(VPATH)}prelude.c
 preludes: {$(VPATH)}miniprelude.c
 preludes: {$(srcdir)}golf_prelude.c
 
@@ -928,20 +867,26 @@ $(REVISION_H): $(srcdir)/version.h $(srcdir)/ChangeLog $(srcdir)/tool/file2lastr
 	-$(Q) $(BASERUBY) $(srcdir)/tool/file2lastrev.rb --revision.h "$(srcdir)" > revision.tmp
 	$(Q)$(IFCHANGE) "--timestamp=$@" "$(srcdir)/revision.h" revision.tmp
 
-$(srcdir)/ext/ripper/ripper.c: parse.y
+$(srcdir)/ext/ripper/ripper.c: parse.y id.h
 	$(ECHO) generating $@
-	$(Q) $(CHDIR) $(@D) && $(exec) $(MAKE) -f depend $(MFLAGS) \
-		Q=$(Q) ECHO=$(ECHO) top_srcdir=../.. srcdir=. VPATH=../.. RUBY="$(BASERUBY)"
+	$(Q) $(CHDIR) $(@D) && \
+	sed /AUTOGENERATED/q depend | \
+	$(exec) $(MAKE) -f - $(MFLAGS) \
+		Q=$(Q) ECHO=$(ECHO) RM="$(RM)" top_srcdir=../.. srcdir=. VPATH="$(PWD)" \
+		RUBY="$(BASERUBY)" PATH_SEPARATOR="$(PATH_SEPARATOR)"
 
 $(srcdir)/ext/json/parser/parser.c: $(srcdir)/ext/json/parser/parser.rl
 	$(ECHO) generating $@
 	$(Q) $(CHDIR) $(@D) && $(exec) $(MAKE) -f prereq.mk $(MFLAGS) \
 		Q=$(Q) ECHO=$(ECHO) top_srcdir=../../.. srcdir=. VPATH=../../.. BASERUBY="$(BASERUBY)"
 
-$(srcdir)/ext/dl/callback/callback.c: $(srcdir)/ext/dl/callback/mkcallback.rb $(srcdir)/ext/dl/dl.h
+$(srcdir)/ext/rbconfig/sizeof/sizes.c: $(srcdir)/ext/rbconfig/sizeof/depend \
+		$(srcdir)/tool/generic_erb.rb $(srcdir)/template/sizes.c.tmpl $(srcdir)/configure.in
 	$(ECHO) generating $@
-	$(Q) $(CHDIR) $(@D) && $(exec) $(MAKE) -f depend $(MFLAGS) \
-		Q=$(Q) ECHO=$(ECHO) top_srcdir=../.. srcdir=. VPATH=../.. RUBY="$(BASERUBY)"
+	$(Q) $(CHDIR) $(@D) && \
+	sed /AUTOGENERATED/q depend | \
+	$(exec) $(MAKE) -f - $(MFLAGS) \
+		Q=$(Q) ECHO=$(ECHO) top_srcdir=../../.. srcdir=. VPATH=../../.. RUBY="$(BASERUBY)"
 
 ##
 
@@ -954,10 +899,21 @@ runruby: $(PROGRAM) PHONY
 parse: fake miniruby$(EXEEXT) PHONY
 	$(BTESTRUBY) $(srcdir)/tool/parse.rb $(TESTRUN_SCRIPT)
 
+bisect: PHONY
+	$(srcdir)/tool/bisect.sh miniruby $(srcdir)
+
+bisect-ruby: PHONY
+	$(srcdir)/tool/bisect.sh ruby $(srcdir)
+
 COMPARE_RUBY = $(BASERUBY)
 ITEM =
 OPTS =
 
+# You can pass several options through OPTS environment variable.
+# $ make benchmark OPTS="--help" displays more detail.
+# for example,
+#  $ make benchmark COMPARE_RUBY="ruby-trunk" OPTS="-e ruby-2.2.2"
+# This command compares trunk and built-ruby and 2.2.2
 benchmark: $(PROGRAM) PHONY
 	$(BASERUBY) $(srcdir)/benchmark/driver.rb -v \
 	            --executables="$(COMPARE_RUBY); built-ruby::$(RUNRUBY)" \
@@ -974,7 +930,8 @@ tbench: $(PROGRAM) PHONY
 	            --pattern='bmx_' --directory=$(srcdir)/benchmark $(OPTS)
 
 run.gdb:
-	echo b ruby_debug_breakpoint           > run.gdb
+	echo set breakpoint pending on         > run.gdb
+	echo b ruby_debug_breakpoint          >> run.gdb
 	echo '# handle SIGINT nostop'         >> run.gdb
 	echo '# handle SIGPIPE nostop'        >> run.gdb
 	echo '# b rb_longjmp'                 >> run.gdb
@@ -994,30 +951,123 @@ gdb-ruby: $(PROGRAM) run.gdb PHONY
 	$(Q) $(RUNRUBY_COMMAND) $(RUNRUBY_DEBUGGER) -- $(TESTRUN_SCRIPT)
 
 dist:
-	$(BASERUBY) $(srcdir)/tool/make-snapshot tmp $(RELNAME)
+	$(BASERUBY) $(srcdir)/tool/make-snapshot -srcdir=$(srcdir) tmp $(RELNAME)
+
+up::
+	-$(Q)$(MAKE) $(MFLAGS) Q=$(Q) REVISION_FORCE=PHONY "$(REVISION_H)"
 
 up::
-	-$(Q)$(MAKE) $(MFLAGS) REVISION_FORCE=PHONY "$(REVISION_H)"
+	-$(Q)$(MAKE) $(MFLAGS) Q=$(Q) after-update
+
+after-update:: update-unicode update-gems extract-extlibs
+
+update-config_files: PHONY
+	$(Q) $(BASERUBY) -C "$(srcdir)/tool" \
+	    ../tool/downloader.rb -e gnu \
+	    config.guess config.sub
+
+update-gems: PHONY
+	$(ECHO) Downloading bundled gem files...
+	$(Q) $(BASERUBY) -C "$(srcdir)/gems" \
+	    -I../tool -rdownloader -answ \
+	    -e 'gem, ver = *$$F' \
+	    -e 'old = Dir.glob("#{gem}-*.gem")' \
+	    -e 'gem = "#{gem}-#{ver}.gem"' \
+	    -e 'Downloader::RubyGems.download(gem, nil, nil) and' \
+	    -e 'File.unlink(*(old-[gem]))' \
+	    bundled_gems
+
+extract-gems: PHONY
+	$(ECHO) Extracting bundled gem files...
+	$(Q) $(RUNRUBY) -C "$(srcdir)/gems" \
+	    -I../tool -rgem-unpack -answ \
+	    -e 'gem, ver = *$$F' \
+	    -e 'Gem.unpack("#{gem}-#{ver}.gem")' \
+	    bundled_gems
+
+UPDATE_LIBRARIES = no
+
+### set the following environment variable or uncomment the line if
+### the Unicode data files are updated every minute.
+# ALWAYS_UPDATE_UNICODE = yes
+
+UNICODE_FILES = $(srcdir)/enc/unicode/data/$(UNICODE_VERSION)/UnicodeData.txt \
+		$(srcdir)/enc/unicode/data/$(UNICODE_VERSION)/CompositionExclusions.txt \
+		$(srcdir)/enc/unicode/data/$(UNICODE_VERSION)/NormalizationTest.txt
+
+update-unicode: $(UNICODE_FILES) PHONY
+
+UNICODE_FILES_DEPS0 = $(UPDATE_LIBRARIES:yes=download-unicode-data)
+UNICODE_FILES_DEPS = $(UNICODE_FILES_DEPS0:no=)
+$(UNICODE_FILES): $(UNICODE_FILES_DEPS)
+
+download-unicode-data: ./.unicode-$(UNICODE_VERSION).time
+./.unicode-$(UNICODE_VERSION).time: PHONY
+	$(ECHO) Downloading Unicode $(UNICODE_VERSION) data files...
+	$(Q) $(MAKEDIRS) "$(srcdir)/enc/unicode/data/$(UNICODE_VERSION)"
+	$(Q) $(BASERUBY) -C "$(srcdir)" tool/downloader.rb \
+	    -d enc/unicode/data/$(UNICODE_VERSION) \
+	    -e $(ALWAYS_UPDATE_UNICODE:yes=-a) unicode \
+	    $(UNICODE_VERSION)/ucd/UnicodeData.txt \
+	    $(UNICODE_VERSION)/ucd/CompositionExclusions.txt \
+	    $(UNICODE_VERSION)/ucd/NormalizationTest.txt
+	@exit > $@
+
+$(srcdir)/$(HAVE_BASERUBY:yes=lib/unicode_normalize/tables.rb): \
+	$(UNICODE_FILES_DEPS:download-unicode-data=./.unicode-tables.time)
+
+./.unicode-tables.time: $(srcdir)/tool/generic_erb.rb \
+		$(UNICODE_FILES) $(UNICODE_FILES_DEPS) \
+		$(srcdir)/template/unicode_norm_gen.tmpl
+	$(Q) $(BASERUBY) $(srcdir)/tool/generic_erb.rb \
+		-c -t$@ -o $(srcdir)/lib/unicode_normalize/tables.rb \
+		-I $(srcdir) \
+		$(srcdir)/template/unicode_norm_gen.tmpl \
+		enc/unicode/data/$(UNICODE_VERSION) lib/unicode_normalize
+
+download-extlibs:
+	$(Q) $(BASERUBY) -C $(srcdir) -w tool/extlibs.rb --download ext
+
+extract-extlibs:
+	$(Q) $(BASERUBY) -C $(srcdir) -w tool/extlibs.rb --all ext
+
+clean-extlibs:
+	$(Q) $(RMALL) $(srcdir)/.downloaded-cache
+
+clean-gems:
+	$(Q) $(RM) gems/*.gem
+
+CLEAN_CACHE = clean-extlibs
 
 info: info-program info-libruby_a info-libruby_so info-arch
-info-program:
+info-program: PHONY
 	@echo PROGRAM=$(PROGRAM)
-info-libruby_a:
+info-libruby_a: PHONY
 	@echo LIBRUBY_A=$(LIBRUBY_A)
-info-libruby_so:
+info-libruby_so: PHONY
 	@echo LIBRUBY_SO=$(LIBRUBY_SO)
-info-arch:
+info-arch: PHONY
 	@echo arch=$(arch)
 
 change: PHONY
 	$(BASERUBY) -C "$(srcdir)" ./tool/change_maker.rb $(CHANGES) > change.log
 
-love: sudo-precheck up all test install test-all
+exam: check test-rubyspec
+
+love: sudo-precheck up all test install check
 	@echo love is all you need
 
-sudo-precheck:
+yes-test-all: sudo-precheck
+
+sudo-precheck: PHONY
 	@$(SUDO) echo > $(NULL)
 
+update-man-date: PHONY
+	-$(Q) $(BASERUBY) -I"$(srcdir)/tool" -rvcs -i -p \
+	-e 'BEGIN{@vcs=VCS.detect(ARGV.shift)}' \
+	-e '$$_.sub!(/^(\.Dd ).*/){$$1+@vcs.modified(ARGF.path).strftime("%B %d, %Y")}' \
+	"$(srcdir)" "$(srcdir)"/man/*.1
+
 help: PHONY
 	$(MESSAGE_BEGIN) \
 	"                Makefile of Ruby" \
@@ -1034,11 +1084,14 @@ help: PHONY
 	"  gdb:             runs test.rb by miniruby under gdb" \
 	"  gdb-ruby:        runs test.rb by ruby under gdb" \
 	"  check:           equals make test test-all" \
+	"  exam:            equals make check test-rubyspec" \
 	"  test:            ruby core tests" \
-	"  test-all:        all ruby tests" \
+	"  test-all:        all ruby tests [TESTOPTS=-j4 TESTS=\"<test files>\"]" \
 	"  test-rubyspec:   run RubySpec test suite" \
 	"  update-rubyspec: update local copy of RubySpec" \
-	"  benchmark:       benchmark this ruby and COMPARE_RUBY" \
+	"  benchmark:       benchmark this ruby and COMPARE_RUBY." \
+	"  gcbench:         gc benchmark [GCBENCH_ITEM=<item_name>]" \
+	"  gcbench-rdoc:    gc benchmark with GCBENCH_ITEM=rdoc" \
 	"  install:         install all ruby distributions" \
 	"  install-nodoc:   install without rdoc" \
 	"  install-cross:   install cross compiling staff" \
@@ -1048,5 +1101,1411 @@ help: PHONY
 	"  golf:            for golfers" \
 	"" \
 	"see DeveloperHowto for more detail: " \
-	"  http://bugs.ruby-lang.org/wiki/ruby/DeveloperHowto" \
+	"  https://bugs.ruby-lang.org/projects/ruby/wiki/DeveloperHowto" \
 	$(MESSAGE_END)
+
+# AUTOGENERATED DEPENDENCIES START
+addr2line.$(OBJEXT): {$(VPATH)}addr2line.c
+addr2line.$(OBJEXT): {$(VPATH)}addr2line.h
+addr2line.$(OBJEXT): {$(VPATH)}config.h
+addr2line.$(OBJEXT): {$(VPATH)}missing.h
+array.$(OBJEXT): $(hdrdir)/ruby/ruby.h
+array.$(OBJEXT): $(top_srcdir)/include/ruby.h
+array.$(OBJEXT): {$(VPATH)}array.c
+array.$(OBJEXT): {$(VPATH)}config.h
+array.$(OBJEXT): {$(VPATH)}defines.h
+array.$(OBJEXT): {$(VPATH)}encoding.h
+array.$(OBJEXT): {$(VPATH)}id.h
+array.$(OBJEXT): {$(VPATH)}intern.h
+array.$(OBJEXT): {$(VPATH)}internal.h
+array.$(OBJEXT): {$(VPATH)}io.h
+array.$(OBJEXT): {$(VPATH)}missing.h
+array.$(OBJEXT): {$(VPATH)}oniguruma.h
+array.$(OBJEXT): {$(VPATH)}probes.h
+array.$(OBJEXT): {$(VPATH)}st.h
+array.$(OBJEXT): {$(VPATH)}subst.h
+array.$(OBJEXT): {$(VPATH)}util.h
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+vm.$(OBJEXT): {$(VPATH)}vmtc.inc
+vm_backtrace.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
+vm_backtrace.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
+vm_backtrace.$(OBJEXT): $(CCAN_DIR)/list/list.h
+vm_backtrace.$(OBJEXT): $(CCAN_DIR)/str/str.h
+vm_backtrace.$(OBJEXT): $(hdrdir)/ruby/ruby.h
+vm_backtrace.$(OBJEXT): $(top_srcdir)/include/ruby.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}config.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}debug.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}defines.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}encoding.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}eval_intern.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}id.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}intern.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}internal.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}io.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}iseq.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}method.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}missing.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}node.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}oniguruma.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}ruby_atomic.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}st.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}subst.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
+vm_backtrace.$(OBJEXT): {$(VPATH)}thread_native.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}vm_backtrace.c
+vm_backtrace.$(OBJEXT): {$(VPATH)}vm_core.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}vm_debug.h
+vm_backtrace.$(OBJEXT): {$(VPATH)}vm_opts.h
+vm_call.$(OBJEXT): $(top_srcdir)/include/ruby.h
+vm_call.$(OBJEXT): {$(VPATH)}vm_core.h
+vm_call.$(OBJEXT): {$(VPATH)}vm_call_iseq_optimized.inc
+vm_dump.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
+vm_dump.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
+vm_dump.$(OBJEXT): $(CCAN_DIR)/list/list.h
+vm_dump.$(OBJEXT): $(CCAN_DIR)/str/str.h
+vm_dump.$(OBJEXT): $(hdrdir)/ruby/ruby.h
+vm_dump.$(OBJEXT): $(top_srcdir)/include/ruby.h
+vm_dump.$(OBJEXT): {$(VPATH)}addr2line.h
+vm_dump.$(OBJEXT): {$(VPATH)}config.h
+vm_dump.$(OBJEXT): {$(VPATH)}defines.h
+vm_dump.$(OBJEXT): {$(VPATH)}encoding.h
+vm_dump.$(OBJEXT): {$(VPATH)}id.h
+vm_dump.$(OBJEXT): {$(VPATH)}intern.h
+vm_dump.$(OBJEXT): {$(VPATH)}internal.h
+vm_dump.$(OBJEXT): {$(VPATH)}io.h
+vm_dump.$(OBJEXT): {$(VPATH)}iseq.h
+vm_dump.$(OBJEXT): {$(VPATH)}method.h
+vm_dump.$(OBJEXT): {$(VPATH)}missing.h
+vm_dump.$(OBJEXT): {$(VPATH)}node.h
+vm_dump.$(OBJEXT): {$(VPATH)}oniguruma.h
+vm_dump.$(OBJEXT): {$(VPATH)}ruby_atomic.h
+vm_dump.$(OBJEXT): {$(VPATH)}st.h
+vm_dump.$(OBJEXT): {$(VPATH)}subst.h
+vm_dump.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
+vm_dump.$(OBJEXT): {$(VPATH)}thread_native.h
+vm_dump.$(OBJEXT): {$(VPATH)}vm_core.h
+vm_dump.$(OBJEXT): {$(VPATH)}vm_debug.h
+vm_dump.$(OBJEXT): {$(VPATH)}vm_dump.c
+vm_dump.$(OBJEXT): {$(VPATH)}vm_opts.h
+vm_trace.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
+vm_trace.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
+vm_trace.$(OBJEXT): $(CCAN_DIR)/list/list.h
+vm_trace.$(OBJEXT): $(CCAN_DIR)/str/str.h
+vm_trace.$(OBJEXT): $(hdrdir)/ruby/ruby.h
+vm_trace.$(OBJEXT): $(top_srcdir)/include/ruby.h
+vm_trace.$(OBJEXT): {$(VPATH)}config.h
+vm_trace.$(OBJEXT): {$(VPATH)}debug.h
+vm_trace.$(OBJEXT): {$(VPATH)}defines.h
+vm_trace.$(OBJEXT): {$(VPATH)}encoding.h
+vm_trace.$(OBJEXT): {$(VPATH)}eval_intern.h
+vm_trace.$(OBJEXT): {$(VPATH)}id.h
+vm_trace.$(OBJEXT): {$(VPATH)}intern.h
+vm_trace.$(OBJEXT): {$(VPATH)}internal.h
+vm_trace.$(OBJEXT): {$(VPATH)}io.h
+vm_trace.$(OBJEXT): {$(VPATH)}method.h
+vm_trace.$(OBJEXT): {$(VPATH)}missing.h
+vm_trace.$(OBJEXT): {$(VPATH)}node.h
+vm_trace.$(OBJEXT): {$(VPATH)}oniguruma.h
+vm_trace.$(OBJEXT): {$(VPATH)}ruby_atomic.h
+vm_trace.$(OBJEXT): {$(VPATH)}st.h
+vm_trace.$(OBJEXT): {$(VPATH)}subst.h
+vm_trace.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
+vm_trace.$(OBJEXT): {$(VPATH)}thread_native.h
+vm_trace.$(OBJEXT): {$(VPATH)}vm_core.h
+vm_trace.$(OBJEXT): {$(VPATH)}vm_debug.h
+vm_trace.$(OBJEXT): {$(VPATH)}vm_opts.h
+vm_trace.$(OBJEXT): {$(VPATH)}vm_trace.c
+# AUTOGENERATED DEPENDENCIES END
diff --git a/compar.c b/compar.c
index c89c752daf..b040641651 100644
--- a/compar.c
+++ b/compar.c
@@ -18,17 +18,16 @@ static ID cmp;
 void
 rb_cmperr(VALUE x, VALUE y)
 {
-    const char *classname;
+    VALUE classname;
 
-    if (SPECIAL_CONST_P(y)) {
-	y = rb_inspect(y);
-	classname = StringValuePtr(y);
+    if (SPECIAL_CONST_P(y) || BUILTIN_TYPE(y) == T_FLOAT) {
+	classname = rb_inspect(y);
     }
     else {
-	classname = rb_obj_classname(y);
+	classname = rb_obj_class(y);
     }
-    rb_raise(rb_eArgError, "comparison of %s with %s failed",
-	     rb_obj_classname(x), classname);
+    rb_raise(rb_eArgError, "comparison of %"PRIsVALUE" with %"PRIsVALUE" failed",
+	     rb_obj_class(x), classname);
 }
 
 static VALUE
@@ -52,19 +51,10 @@ rb_invcmp(VALUE x, VALUE y)
 }
 
 static VALUE
-cmp_eq(VALUE *a)
+cmp_eq_recursive(VALUE arg1, VALUE arg2, int recursive)
 {
-    VALUE c = rb_funcall(a[0], cmp, 1, a[1]);
-
-    if (NIL_P(c)) return Qfalse;
-    if (rb_cmpint(c, a[0], a[1]) == 0) return Qtrue;
-    return Qfalse;
-}
-
-static VALUE
-cmp_failed(void)
-{
-    return Qfalse;
+    if (recursive) return Qnil;
+    return rb_funcallv(arg1, cmp, 1, &arg2);
 }
 
 /*
@@ -74,20 +64,19 @@ cmp_failed(void)
  *  Compares two objects based on the receiver's <code><=></code>
  *  method, returning true if it returns 0. Also returns true if
  *  _obj_ and _other_ are the same object.
- *
- *  Even if _obj_ <=> _other_ raised an exception, the exception
- *  is ignoread and returns false.
  */
 
 static VALUE
 cmp_equal(VALUE x, VALUE y)
 {
-    VALUE a[2];
-
+    VALUE c;
     if (x == y) return Qtrue;
 
-    a[0] = x; a[1] = y;
-    return rb_rescue(cmp_eq, (VALUE)a, cmp_failed, 0);
+    c = rb_exec_recursive_paired_outer(cmp_eq_recursive, x, y, y);
+
+    if (NIL_P(c)) return Qfalse;
+    if (rb_cmpint(c, x, y) == 0) return Qtrue;
+    return Qfalse;
 }
 
 /*
@@ -196,8 +185,8 @@ cmp_between(VALUE x, VALUE min, VALUE max)
  *     class SizeMatters
  *       include Comparable
  *       attr :str
- *       def <=>(anOther)
- *         str.size <=> anOther.str.size
+ *       def <=>(other)
+ *         str.size <=> other.str.size
  *       end
  *       def initialize(str)
  *         @str = str
diff --git a/compile.c b/compile.c
index 50b3d4c29a..0aea3acd92 100644
--- a/compile.c
+++ b/compile.c
@@ -9,8 +9,9 @@
 
 **********************************************************************/
 
-#include "ruby/ruby.h"
 #include "internal.h"
+#include "ruby/re.h"
+#include "encindex.h"
 #include <math.h>
 
 #define USE_INSN_STACK_INCREASE 1
@@ -18,8 +19,17 @@
 #include "iseq.h"
 #include "insns.inc"
 #include "insns_info.inc"
+#include "gc.h"
+
+#ifdef HAVE_DLADDR
+# include <dlfcn.h>
+#endif
+
+#undef RUBY_UNTYPED_DATA_WARNING
+#define RUBY_UNTYPED_DATA_WARNING 0
+
+#define ISEQ_TYPE_ONCE_GUARD ISEQ_TYPE_DEFINED_GUARD
 
-#define numberof(array) (int)(sizeof(array) / sizeof((array)[0]))
 #define FIXNUM_INC(n, i) ((n)+(INT2FIX(i)&~FIXNUM_FLAG))
 #define FIXNUM_OR(n, i) ((n)|INT2FIX(i))
 
@@ -39,6 +49,13 @@ typedef struct iseq_link_anchor {
     LINK_ELEMENT *last;
 } LINK_ANCHOR;
 
+typedef enum {
+    LABEL_RESCUE_NONE,
+    LABEL_RESCUE_BEG,
+    LABEL_RESCUE_END,
+    LABEL_RESCUE_TYPE_MAX
+} LABEL_RESCUE_TYPE;
+
 typedef struct iseq_label_data {
     LINK_ELEMENT link;
     int label_no;
@@ -46,6 +63,8 @@ typedef struct iseq_label_data {
     int sc_state;
     int set;
     int sp;
+    int refcnt;
+    unsigned int rescued: 2;
 } LABEL;
 
 typedef struct iseq_insn_data {
@@ -95,7 +114,7 @@ struct iseq_compile_data_ensure_node_stack {
 #if CPDEBUG >= 0
 #define compile_debug CPDEBUG
 #else
-#define compile_debug iseq->compile_data->option->debug_level
+#define compile_debug ISEQ_COMPILE_DATA(iseq)->option->debug_level
 #endif
 
 #if CPDEBUG
@@ -154,6 +173,7 @@ r_value(VALUE value)
 #endif
 
 #if CPDEBUG > 1 || CPDEBUG < 0
+#define printf ruby_debug_printf
 #define debugs if (compile_debug_print_indent(1)) ruby_debug_printf
 #define debug_compile(msg, v) ((void)(compile_debug_print_indent(1) && fputs((msg), stderr)), (v))
 #else
@@ -165,17 +185,14 @@ r_value(VALUE value)
 /* create new label */
 #define NEW_LABEL(l) new_label_body(iseq, (l))
 
-#define iseq_path(iseq) \
-  (((rb_iseq_t*)DATA_PTR(iseq))->location.path)
+#define iseq_path(iseq) ((iseq)->body->location.path)
+#define iseq_absolute_path(iseq) ((iseq)->body->location.absolute_path)
 
-#define iseq_absolute_path(iseq) \
-  (((rb_iseq_t*)DATA_PTR(iseq))->location.absolute_path)
+#define NEW_ISEQ(node, name, type, line_no) \
+  new_child_iseq(iseq, (node), rb_fstring(name), 0, (type), (line_no))
 
-#define NEW_ISEQVAL(node, name, type, line_no)       \
-  new_child_iseq(iseq, (node), (name), 0, (type), (line_no))
-
-#define NEW_CHILD_ISEQVAL(node, name, type, line_no)       \
-  new_child_iseq(iseq, (node), (name), iseq->self, (type), (line_no))
+#define NEW_CHILD_ISEQ(node, name, type, line_no) \
+  new_child_iseq(iseq, (node), rb_fstring(name), iseq, (type), (line_no))
 
 /* add instructions */
 #define ADD_SEQ(seq1, seq2) \
@@ -185,13 +202,24 @@ r_value(VALUE value)
 #define ADD_INSN(seq, line, insn) \
   ADD_ELEM((seq), (LINK_ELEMENT *) new_insn_body(iseq, (line), BIN(insn), 0))
 
+/* insert an instruction before prev */
+#define INSERT_BEFORE_INSN(prev, line, insn) \
+  INSERT_ELEM_PREV(&(prev)->link, (LINK_ELEMENT *) new_insn_body(iseq, (line), BIN(insn), 0))
+
 /* add an instruction with some operands (1, 2, 3, 5) */
 #define ADD_INSN1(seq, line, insn, op1) \
   ADD_ELEM((seq), (LINK_ELEMENT *) \
            new_insn_body(iseq, (line), BIN(insn), 1, (VALUE)(op1)))
 
+/* insert an instruction with some operands (1, 2, 3, 5) before prev */
+#define INSERT_BEFORE_INSN1(prev, line, insn, op1) \
+  INSERT_ELEM_PREV(&(prev)->link, (LINK_ELEMENT *) \
+           new_insn_body(iseq, (line), BIN(insn), 1, (VALUE)(op1)))
+
+#define LABEL_REF(label) ((label)->refcnt++)
+
 /* add an instruction with label operand (alias of ADD_INSN1) */
-#define ADD_INSNL(seq, line, insn, label) ADD_INSN1(seq, line, insn, label)
+#define ADD_INSNL(seq, line, insn, label) (ADD_INSN1(seq, line, insn, label), LABEL_REF(label))
 
 #define ADD_INSN2(seq, line, insn, op1, op2) \
   ADD_ELEM((seq), (LINK_ELEMENT *) \
@@ -203,31 +231,36 @@ r_value(VALUE value)
 
 /* Specific Insn factory */
 #define ADD_SEND(seq, line, id, argc) \
-  ADD_SEND_R((seq), (line), (id), (argc), (VALUE)Qfalse, (VALUE)INT2FIX(0))
+  ADD_SEND_R((seq), (line), (id), (argc), NULL, (VALUE)INT2FIX(0), NULL)
+
+#define ADD_SEND_WITH_FLAG(seq, line, id, argc, flag) \
+  ADD_SEND_R((seq), (line), (id), (argc), NULL, (VALUE)(flag), NULL)
+
+#define ADD_SEND_WITH_BLOCK(seq, line, id, argc, block) \
+  ADD_SEND_R((seq), (line), (id), (argc), (block), (VALUE)INT2FIX(0), NULL)
 
 #define ADD_CALL_RECEIVER(seq, line) \
   ADD_INSN((seq), (line), putself)
 
 #define ADD_CALL(seq, line, id, argc) \
-  ADD_SEND_R((seq), (line), (id), (argc), (VALUE)Qfalse, (VALUE)INT2FIX(VM_CALL_FCALL))
+  ADD_SEND_R((seq), (line), (id), (argc), NULL, (VALUE)INT2FIX(VM_CALL_FCALL), NULL)
 
 #define ADD_CALL_WITH_BLOCK(seq, line, id, argc, block) \
-  ADD_SEND_R((seq), (line), (id), (argc), (block), (VALUE)INT2FIX(VM_CALL_FCALL))
+  ADD_SEND_R((seq), (line), (id), (argc), (block), (VALUE)INT2FIX(VM_CALL_FCALL), NULL)
 
-#define ADD_SEND_R(seq, line, id, argc, block, flag) \
-  ADD_ELEM((seq), (LINK_ELEMENT *) \
-           new_insn_send(iseq, (line), \
-                         (VALUE)(id), (VALUE)(argc), (VALUE)(block), (VALUE)(flag)))
+#define ADD_SEND_R(seq, line, id, argc, block, flag, keywords) \
+  ADD_ELEM((seq), (LINK_ELEMENT *) new_insn_send(iseq, (line), (id), (VALUE)(argc), (block), (VALUE)(flag), (keywords)))
 
 #define ADD_TRACE(seq, line, event) \
   do { \
-      if ((event) == RUBY_EVENT_LINE && iseq->coverage && \
-	  (line) != iseq->compile_data->last_coverable_line) { \
-	  RARRAY_PTR(iseq->coverage)[(line) - 1] = INT2FIX(0); \
-	  iseq->compile_data->last_coverable_line = (line); \
+      if ((event) == RUBY_EVENT_LINE && ISEQ_COVERAGE(iseq) && \
+	  (line) > 0 && \
+	  (line) != ISEQ_COMPILE_DATA(iseq)->last_coverable_line) { \
+	  RARRAY_ASET(ISEQ_COVERAGE(iseq), (line) - 1, INT2FIX(0)); \
+	  ISEQ_COMPILE_DATA(iseq)->last_coverable_line = (line); \
 	  ADD_INSN1((seq), (line), trace, INT2FIX(RUBY_EVENT_COVERAGE)); \
       } \
-      if (iseq->compile_data->option->trace_instruction) { \
+      if (ISEQ_COMPILE_DATA(iseq)->option->trace_instruction) { \
 	  ADD_INSN1((seq), (line), trace, INT2FIX(event)); \
       } \
   } while (0)
@@ -245,11 +278,15 @@ r_value(VALUE value)
 #define ADD_ADJUST_RESTORE(seq, label) \
   ADD_ELEM((seq), (LINK_ELEMENT *) new_adjust_body(iseq, (label), -1))
 
-#define ADD_CATCH_ENTRY(type, ls, le, iseqv, lc)		\
-    (rb_ary_push(iseq->compile_data->catch_table_ary,		\
-		 rb_ary_new3(5, (type),				\
-			     (VALUE)(ls) | 1, (VALUE)(le) | 1,	\
-			     (VALUE)(iseqv), (VALUE)(lc) | 1)))
+#define ADD_CATCH_ENTRY(type, ls, le, iseqv, lc) do {				\
+    VALUE _e = rb_ary_new3(5, (type),						\
+			   (VALUE)(ls) | 1, (VALUE)(le) | 1,			\
+			   (VALUE)(iseqv), (VALUE)(lc) | 1);			\
+    if (ls) LABEL_REF(ls);							\
+    if (le) LABEL_REF(le);							\
+    if (lc) LABEL_REF(lc);							\
+    rb_ary_push(ISEQ_COMPILE_DATA(iseq)->catch_table_ary, freeze_hide_obj(_e));	\
+} while (0)
 
 /* compile node */
 #define COMPILE(anchor, desc, node) \
@@ -266,6 +303,11 @@ r_value(VALUE value)
   (debug_compile("== " desc "\n", \
                  iseq_compile_each(iseq, (anchor), (node), (poped))))
 
+#define COMPILE_RECV(anchor, desc, node) \
+    (private_recv_p(node) ? \
+     (ADD_INSN(anchor, nd_line(node), putself), VM_CALL_FCALL) : \
+     (COMPILE(anchor, desc, node->nd_recv), 0))
+
 #define OPERAND_AT(insn, idx) \
   (((INSN*)(insn))->operands[(idx)])
 
@@ -273,20 +315,69 @@ r_value(VALUE value)
   (((INSN*)(insn))->insn_id)
 
 /* error */
-#define COMPILE_ERROR(strs)                        \
-{                                                  \
-  VALUE tmp = GET_THREAD()->errinfo;               \
-  if (compile_debug) rb_compile_bug strs;          \
-  GET_THREAD()->errinfo = iseq->compile_data->err_info;  \
-  rb_compile_error strs;                           \
-  iseq->compile_data->err_info = GET_THREAD()->errinfo; \
-  GET_THREAD()->errinfo = tmp;                     \
-  ret = 0;                                         \
-  break;                                           \
+typedef void (*compile_error_func)(VALUE, int, const char *, ...);
+
+static void
+append_compile_error(VALUE file, int line, const char *fmt, ...)
+{
+    VALUE err_info = rb_errinfo();
+    VALUE str = rb_attr_get(err_info, idMesg);
+    va_list args;
+
+    if (RSTRING_LEN(str)) rb_str_cat2(str, "\n");
+    if (file) {
+	rb_str_concat(str, file);
+	if (line) rb_str_catf(str, ":%d", line);
+	rb_str_cat2(str, ": ");
+    }
+    va_start(args, fmt);
+    rb_str_vcatf(str, fmt, args);
+    va_end(args);
 }
 
-#define ERROR_ARGS ruby_sourcefile, nd_line(node),
+NOINLINE(static compile_error_func prepare_compile_error(rb_iseq_t *iseq));
 
+static compile_error_func
+prepare_compile_error(rb_iseq_t *iseq)
+{
+    VALUE err_info = ISEQ_COMPILE_DATA(iseq)->err_info;
+    if (compile_debug) return rb_compile_bug_str;
+    if (NIL_P(err_info)) {
+	err_info = rb_exc_new_cstr(rb_eSyntaxError, "");
+	RB_OBJ_WRITE(iseq, &ISEQ_COMPILE_DATA(iseq)->err_info, err_info);
+    }
+    rb_set_errinfo(err_info);
+    return append_compile_error;
+}
+
+#define COMPILE_ERROR prepare_compile_error(iseq)
+
+#define ERROR_ARGS_AT(n) ruby_sourcefile_string, nd_line(n),
+#define ERROR_ARGS ERROR_ARGS_AT(node)
+
+#define EXPECT_NODE(prefix, node, ndtype) \
+do { \
+    NODE *error_node = (node); \
+    enum node_type error_type = nd_type(error_node); \
+    if (error_type != (ndtype)) { \
+	rb_compile_bug_str(ERROR_ARGS_AT(error_node) \
+			   prefix ": " #ndtype " is expected, but %s", \
+			   ruby_node_name(error_type)); \
+    } \
+} while (0)
+
+#define EXPECT_NODE_NONULL(prefix, parent, ndtype) \
+do { \
+    rb_compile_bug_str(ERROR_ARGS_AT(parent) \
+		       prefix ": must be " #ndtype ", but 0"); \
+} while (0)
+
+#define UNKNOWN_NODE(prefix, node) \
+do { \
+    NODE *error_node = (node); \
+    rb_compile_bug_str(ERROR_ARGS_AT(error_node) prefix ": unknown node (%s)", \
+		       ruby_node_name(nd_type(error_node))); \
+} while (0)
 
 #define COMPILE_OK 1
 #define COMPILE_NG 0
@@ -299,7 +390,13 @@ r_value(VALUE value)
 #define INIT_ANCHOR(name) \
   (name##_body__.last = &name##_body__.anchor, name = &name##_body__)
 
-#define hide_obj(obj) do {OBJ_FREEZE(obj); RBASIC(obj)->klass = 0;} while (0)
+static inline VALUE
+freeze_hide_obj(VALUE obj)
+{
+    OBJ_FREEZE(obj);
+    RBASIC_CLEAR_CLASS(obj);
+    return obj;
+}
 
 #include "optinsn.inc"
 #if OPT_INSTRUCTIONS_UNIFICATION
@@ -316,19 +413,15 @@ r_value(VALUE value)
 #endif
 
 #if CPDEBUG
-#define gl_node_level iseq->compile_data->node_level
-#if 0
-static void debug_list(ISEQ_ARG_DECLARE LINK_ANCHOR *anchor);
-#endif
+#define gl_node_level ISEQ_COMPILE_DATA(iseq)->node_level
 #endif
 
 static void dump_disasm_list(LINK_ELEMENT *elem);
 
 static int insn_data_length(INSN *iobj);
-static int insn_data_line_no(INSN *iobj);
 static int calc_sp_depth(int depth, INSN *iobj);
 
-static INSN *new_insn_body(rb_iseq_t *iseq, int line_no, int insn_id, int argc, ...);
+static INSN *new_insn_body(rb_iseq_t *iseq, int line_no, enum ruby_vminsn_type insn_id, int argc, ...);
 static LABEL *new_label_body(rb_iseq_t *iseq, long line);
 static ADJUST *new_adjust_body(rb_iseq_t *iseq, LABEL *label, int line);
 
@@ -337,7 +430,7 @@ static int iseq_setup(rb_iseq_t *iseq, LINK_ANCHOR *anchor);
 static int iseq_optimize(rb_iseq_t *iseq, LINK_ANCHOR *anchor);
 static int iseq_insns_unification(rb_iseq_t *iseq, LINK_ANCHOR *anchor);
 
-static int iseq_set_local_table(rb_iseq_t *iseq, ID *tbl);
+static int iseq_set_local_table(rb_iseq_t *iseq, const ID *tbl);
 static int iseq_set_exception_local_table(rb_iseq_t *iseq);
 static int iseq_set_arguments(rb_iseq_t *iseq, LINK_ANCHOR *anchor, NODE * node);
 
@@ -409,25 +502,26 @@ APPEND_ELEM(ISEQ_ARG_DECLARE LINK_ANCHOR *anchor, LINK_ELEMENT *before, LINK_ELE
 }
 #if CPDEBUG < 0
 #define ADD_ELEM(anchor, elem) ADD_ELEM(iseq, (anchor), (elem))
-#define APPEND_ELEM(anchor, before, elem) ADD_ELEM(iseq, (anchor), (before), (elem))
+#define APPEND_ELEM(anchor, before, elem) APPEND_ELEM(iseq, (anchor), (before), (elem))
 #endif
 
 static int
-iseq_add_mark_object(rb_iseq_t *iseq, VALUE v)
+iseq_add_mark_object(const rb_iseq_t *iseq, VALUE v)
 {
     if (!SPECIAL_CONST_P(v)) {
-	rb_ary_push(iseq->mark_ary, v);
+	rb_iseq_add_mark_object(iseq, v);
     }
     return COMPILE_OK;
 }
 
-#define ruby_sourcefile		RSTRING_PTR(iseq->location.path)
+#define ruby_sourcefile_string (iseq->body->location.path)
+#define ruby_sourcefile		RSTRING_PTR(iseq->body->location.path)
 
 static int
-iseq_add_mark_object_compile_time(rb_iseq_t *iseq, VALUE v)
+iseq_add_mark_object_compile_time(const rb_iseq_t *iseq, VALUE v)
 {
     if (!SPECIAL_CONST_P(v)) {
-	rb_ary_push(iseq->compile_data->mark_ary, v);
+	rb_ary_push(ISEQ_COMPILE_DATA(iseq)->mark_ary, v);
     }
     return COMPILE_OK;
 }
@@ -439,10 +533,9 @@ validate_label(st_data_t name, st_data_t label, st_data_t arg)
     LABEL *lobj = (LABEL *)label;
     if (!lobj->link.next) {
 	do {
-	    int ret;
-	    COMPILE_ERROR((ruby_sourcefile, lobj->position,
-			   "%s: undefined label", rb_id2name((ID)name)));
-	    if (ret) break;
+	    COMPILE_ERROR(ruby_sourcefile_string, lobj->position,
+			  "%"PRIsVALUE": undefined label",
+			  rb_id2str((ID)name));
 	} while (0);
     }
     return ST_CONTINUE;
@@ -452,18 +545,14 @@ static void
 validate_labels(rb_iseq_t *iseq, st_table *labels_table)
 {
     st_foreach(labels_table, validate_label, (st_data_t)iseq);
-    if (!NIL_P(iseq->compile_data->err_info)) {
-	rb_exc_raise(iseq->compile_data->err_info);
-    }
+    st_free_table(labels_table);
 }
 
 VALUE
-rb_iseq_compile_node(VALUE self, NODE *node)
+rb_iseq_compile_node(rb_iseq_t *iseq, NODE *node)
 {
     DECL_ANCHOR(ret);
-    rb_iseq_t *iseq;
     INIT_ANCHOR(ret);
-    GetISeqPtr(self, iseq);
 
     if (node == 0) {
 	COMPILE(ret, "nil", node);
@@ -474,14 +563,17 @@ rb_iseq_compile_node(VALUE self, NODE *node)
 	iseq_set_local_table(iseq, node->nd_tbl);
 	iseq_set_arguments(iseq, ret, node->nd_args);
 
-	switch (iseq->type) {
+	switch (iseq->body->type) {
 	  case ISEQ_TYPE_BLOCK:
 	    {
-		LABEL *start = iseq->compile_data->start_label = NEW_LABEL(0);
-		LABEL *end = iseq->compile_data->end_label = NEW_LABEL(0);
+		LABEL *start = ISEQ_COMPILE_DATA(iseq)->start_label = NEW_LABEL(0);
+		LABEL *end = ISEQ_COMPILE_DATA(iseq)->end_label = NEW_LABEL(0);
 
+		start->rescued = LABEL_RESCUE_BEG;
+		end->rescued = LABEL_RESCUE_END;
+
+		ADD_TRACE(ret, FIX2INT(iseq->body->location.first_lineno), RUBY_EVENT_B_CALL);
 		ADD_LABEL(ret, start);
-		ADD_TRACE(ret, FIX2INT(iseq->location.first_lineno), RUBY_EVENT_B_CALL);
 		COMPILE(ret, "block body", node->nd_body);
 		ADD_LABEL(ret, end);
 		ADD_TRACE(ret, nd_line(node), RUBY_EVENT_B_RETURN);
@@ -493,14 +585,14 @@ rb_iseq_compile_node(VALUE self, NODE *node)
 	    }
 	  case ISEQ_TYPE_CLASS:
 	    {
-		ADD_TRACE(ret, FIX2INT(iseq->location.first_lineno), RUBY_EVENT_CLASS);
+		ADD_TRACE(ret, FIX2INT(iseq->body->location.first_lineno), RUBY_EVENT_CLASS);
 		COMPILE(ret, "scoped node", node->nd_body);
 		ADD_TRACE(ret, nd_line(node), RUBY_EVENT_END);
 		break;
 	    }
 	  case ISEQ_TYPE_METHOD:
 	    {
-		ADD_TRACE(ret, FIX2INT(iseq->location.first_lineno), RUBY_EVENT_CALL);
+		ADD_TRACE(ret, FIX2INT(iseq->body->location.first_lineno), RUBY_EVENT_CALL);
 		COMPILE(ret, "scoped node", node->nd_body);
 		ADD_TRACE(ret, nd_line(node), RUBY_EVENT_RETURN);
 		break;
@@ -511,17 +603,22 @@ rb_iseq_compile_node(VALUE self, NODE *node)
 	  }
 	}
     }
+    else if (RB_TYPE_P((VALUE)node, T_IMEMO)) {
+	const struct vm_ifunc *ifunc = (struct vm_ifunc *)node;
+	/* user callback */
+	(*ifunc->func)(iseq, ret, ifunc->data);
+    }
     else {
-	switch (iseq->type) {
+	switch (iseq->body->type) {
 	  case ISEQ_TYPE_METHOD:
 	  case ISEQ_TYPE_CLASS:
 	  case ISEQ_TYPE_BLOCK:
 	  case ISEQ_TYPE_EVAL:
 	  case ISEQ_TYPE_MAIN:
 	  case ISEQ_TYPE_TOP:
-	    rb_compile_error(ERROR_ARGS "compile/should not be reached: %s:%d",
-			     __FILE__, __LINE__);
-	    break;
+	    COMPILE_ERROR(ERROR_ARGS "compile/should not be reached: %s:%d",
+			  __FILE__, __LINE__);
+	    return COMPILE_NG;
 	  case ISEQ_TYPE_RESCUE:
 	    iseq_set_exception_local_table(iseq);
 	    COMPILE(ret, "rescue", node);
@@ -531,25 +628,27 @@ rb_iseq_compile_node(VALUE self, NODE *node)
 	    COMPILE_POPED(ret, "ensure", node);
 	    break;
 	  case ISEQ_TYPE_DEFINED_GUARD:
-	    iseq_set_local_table(iseq, 0);
+	    iseq_set_exception_local_table(iseq);
 	    COMPILE(ret, "defined guard", node);
 	    break;
 	  default:
-	    rb_bug("unknown scope");
+	    rb_compile_bug_str(ERROR_ARGS "unknown scope");
 	}
     }
 
-    if (iseq->type == ISEQ_TYPE_RESCUE || iseq->type == ISEQ_TYPE_ENSURE) {
+    if (iseq->body->type == ISEQ_TYPE_RESCUE || iseq->body->type == ISEQ_TYPE_ENSURE) {
 	ADD_INSN2(ret, 0, getlocal, INT2FIX(2), INT2FIX(0));
 	ADD_INSN1(ret, 0, throw, INT2FIX(0) /* continue throw */ );
     }
     else {
-	ADD_INSN(ret, iseq->compile_data->last_line, leave);
+	ADD_INSN(ret, ISEQ_COMPILE_DATA(iseq)->last_line, leave);
     }
 
 #if SUPPORT_JOKE
-    if (iseq->compile_data->labels_table) {
-	validate_labels(iseq, iseq->compile_data->labels_table);
+    if (ISEQ_COMPILE_DATA(iseq)->labels_table) {
+	st_table *labels_table = ISEQ_COMPILE_DATA(iseq)->labels_table;
+	ISEQ_COMPILE_DATA(iseq)->labels_table = 0;
+	validate_labels(iseq, labels_table);
     }
 #endif
     return iseq_setup(iseq, ret);
@@ -560,54 +659,150 @@ rb_iseq_translate_threaded_code(rb_iseq_t *iseq)
 {
 #if OPT_DIRECT_THREADED_CODE || OPT_CALL_THREADED_CODE
     const void * const *table = rb_vm_get_insns_address_table();
-    unsigned long i;
-
-    iseq->iseq_encoded = ALLOC_N(VALUE, iseq->iseq_size);
-    MEMCPY(iseq->iseq_encoded, iseq->iseq, VALUE, iseq->iseq_size);
+    unsigned int i;
+    VALUE *encoded = (VALUE *)iseq->body->iseq_encoded;
 
-    for (i = 0; i < iseq->iseq_size; /* */ ) {
-	int insn = (int)iseq->iseq_encoded[i];
+    for (i = 0; i < iseq->body->iseq_size; /* */ ) {
+	int insn = (int)iseq->body->iseq_encoded[i];
 	int len = insn_len(insn);
-	iseq->iseq_encoded[i] = (VALUE)table[insn];
+	encoded[i] = (VALUE)table[insn];
 	i += len;
     }
-#else
-    iseq->iseq_encoded = iseq->iseq;
 #endif
     return COMPILE_OK;
 }
 
+#if OPT_DIRECT_THREADED_CODE || OPT_CALL_THREADED_CODE
+static int
+rb_vm_insn_addr2insn(const void *addr) /* cold path */
+{
+    int insn;
+    const void * const *table = rb_vm_get_insns_address_table();
+
+    for (insn = 0; insn < VM_INSTRUCTION_SIZE; insn++) {
+	if (table[insn] == addr) {
+	    return insn;
+	}
+    }
+    rb_bug("rb_vm_insn_addr2insn: invalid insn address: %p", addr);
+}
+#endif
+
+VALUE *
+rb_iseq_original_iseq(const rb_iseq_t *iseq) /* cold path */
+{
+    VALUE *original_code;
+
+    if (ISEQ_ORIGINAL_ISEQ(iseq)) return ISEQ_ORIGINAL_ISEQ(iseq);
+    original_code = ISEQ_ORIGINAL_ISEQ_ALLOC(iseq, iseq->body->iseq_size);
+    MEMCPY(original_code, iseq->body->iseq_encoded, VALUE, iseq->body->iseq_size);
+
+#if OPT_DIRECT_THREADED_CODE || OPT_CALL_THREADED_CODE
+    {
+	unsigned int i;
+
+	for (i = 0; i < iseq->body->iseq_size; /* */ ) {
+	    const void *addr = (const void *)original_code[i];
+	    const int insn = rb_vm_insn_addr2insn(addr);
+
+	    original_code[i] = insn;
+	    i += insn_len(insn);
+	}
+    }
+#endif
+    return original_code;
+}
+
 /*********************************************/
 /* definition of data structure for compiler */
 /*********************************************/
 
+/*
+ * On 32-bit SPARC, GCC by default generates SPARC V7 code that may require
+ * 8-byte word alignment. On the other hand, Oracle Solaris Studio seems to
+ * generate SPARCV8PLUS code with unaligned memory access instructions.
+ * That is why the STRICT_ALIGNMENT is defined only with GCC.
+ */
+#if defined(__sparc) && SIZEOF_VOIDP == 4 && defined(__GNUC__)
+  #define STRICT_ALIGNMENT
+#endif
+
+#ifdef STRICT_ALIGNMENT
+  #if defined(HAVE_TRUE_LONG_LONG) && SIZEOF_LONG_LONG > SIZEOF_VALUE
+    #define ALIGNMENT_SIZE SIZEOF_LONG_LONG
+  #else
+    #define ALIGNMENT_SIZE SIZEOF_VALUE
+  #endif
+  #define PADDING_SIZE_MAX    ((size_t)((ALIGNMENT_SIZE) - 1))
+  #define ALIGNMENT_SIZE_MASK PADDING_SIZE_MAX
+  /* Note: ALIGNMENT_SIZE == (2 ** N) is expected. */
+#else
+  #define PADDING_SIZE_MAX 0
+#endif /* STRICT_ALIGNMENT */
+
+#ifdef STRICT_ALIGNMENT
+/* calculate padding size for aligned memory access */
+static size_t
+calc_padding(void *ptr, size_t size)
+{
+    size_t mis;
+    size_t padding = 0;
+
+    mis = (size_t)ptr & ALIGNMENT_SIZE_MASK;
+    if (mis > 0) {
+        padding = ALIGNMENT_SIZE - mis;
+    }
+/*
+ * On 32-bit sparc or equivalents, when a single VALUE is requested
+ * and padding == sizeof(VALUE), it is clear that no padding is needed.
+ */
+#if ALIGNMENT_SIZE > SIZEOF_VALUE
+    if (size == sizeof(VALUE) && padding == sizeof(VALUE)) {
+        padding = 0;
+    }
+#endif
+
+    return padding;
+}
+#endif /* STRICT_ALIGNMENT */
+
 static void *
 compile_data_alloc(rb_iseq_t *iseq, size_t size)
 {
     void *ptr = 0;
     struct iseq_compile_data_storage *storage =
-	iseq->compile_data->storage_current;
+	ISEQ_COMPILE_DATA(iseq)->storage_current;
+#ifdef STRICT_ALIGNMENT
+    size_t padding = calc_padding((void *)&storage->buff[storage->pos], size);
+#else
+    const size_t padding = 0; /* expected to be optimized by compiler */
+#endif /* STRICT_ALIGNMENT */
 
-    if (storage->pos + size > storage->size) {
-	unsigned long alloc_size = storage->size * 2;
+    if (size >= INT_MAX - padding) rb_memerror();
+    if (storage->pos + size + padding > storage->size) {
+	unsigned int alloc_size = storage->size;
 
-      retry:
-	if (alloc_size < size) {
+	while (alloc_size < size + PADDING_SIZE_MAX) {
+	    if (alloc_size >= INT_MAX / 2) rb_memerror();
 	    alloc_size *= 2;
-	    goto retry;
 	}
 	storage->next = (void *)ALLOC_N(char, alloc_size +
-					sizeof(struct
-					       iseq_compile_data_storage));
-	storage = iseq->compile_data->storage_current = storage->next;
+					SIZEOF_ISEQ_COMPILE_DATA_STORAGE);
+	storage = ISEQ_COMPILE_DATA(iseq)->storage_current = storage->next;
 	storage->next = 0;
 	storage->pos = 0;
 	storage->size = alloc_size;
-	storage->buff = (char *)(&storage->buff + 1);
+#ifdef STRICT_ALIGNMENT
+        padding = calc_padding((void *)&storage->buff[storage->pos], size);
+#endif /* STRICT_ALIGNMENT */
     }
 
+#ifdef STRICT_ALIGNMENT
+    storage->pos += (int)padding;
+#endif /* STRICT_ALIGNMENT */
+
     ptr = (void *)&storage->buff[storage->pos];
-    storage->pos += size;
+    storage->pos += (int)size;
     return ptr;
 }
 
@@ -643,9 +838,8 @@ INSERT_ELEM_NEXT(LINK_ELEMENT *elem1, LINK_ELEMENT *elem2)
     }
 }
 
-#if 0 /* unused */
 /*
- * elemX, elem1 => elemX, elem2, elem1
+ * elem1, elemX => elemX, elem2, elem1
  */
 static void
 INSERT_ELEM_PREV(LINK_ELEMENT *elem1, LINK_ELEMENT *elem2)
@@ -657,8 +851,8 @@ INSERT_ELEM_PREV(LINK_ELEMENT *elem1, LINK_ELEMENT *elem2)
 	elem2->prev->next = elem2;
     }
 }
-#endif
 
+#if 0
 /*
  * elemX, elem1, elemY => elemX, elem2, elemY
  */
@@ -674,6 +868,7 @@ REPLACE_ELEM(LINK_ELEMENT *elem1, LINK_ELEMENT *elem2)
 	elem1->next->prev = elem2;
     }
 }
+#endif
 
 static void
 REMOVE_ELEM(LINK_ELEMENT *elem)
@@ -690,13 +885,11 @@ FIRST_ELEMENT(LINK_ANCHOR *anchor)
     return anchor->anchor.next;
 }
 
-#if 0 /* unused */
 static LINK_ELEMENT *
 LAST_ELEMENT(LINK_ANCHOR *anchor)
 {
-  return anchor->last;
+    return anchor->last;
 }
-#endif
 
 static LINK_ELEMENT *
 POP_ELEMENT(ISEQ_ARG_DECLARE LINK_ANCHOR *anchor)
@@ -711,32 +904,6 @@ POP_ELEMENT(ISEQ_ARG_DECLARE LINK_ANCHOR *anchor)
 #define POP_ELEMENT(anchor) POP_ELEMENT(iseq, (anchor))
 #endif
 
-#if 0 /* unused */
-static LINK_ELEMENT *
-SHIFT_ELEMENT(LINK_ANCHOR *anchor)
-{
-    LINK_ELEMENT *elem = anchor->anchor.next;
-    if (elem) {
-	anchor->anchor.next = elem->next;
-    }
-    return elem;
-}
-#endif
-
-#if 0 /* unused */
-static int
-LIST_SIZE(LINK_ANCHOR *anchor)
-{
-    LINK_ELEMENT *elem = anchor->anchor.next;
-    int size = 0;
-    while (elem) {
-	size += 1;
-	elem = elem->next;
-    }
-    return size;
-}
-#endif
-
 static int
 LIST_SIZE_ZERO(LINK_ANCHOR *anchor)
 {
@@ -798,65 +965,6 @@ INSERT_LIST(ISEQ_ARG_DECLARE LINK_ANCHOR *anc1, LINK_ANCHOR *anc2)
 #define INSERT_LIST(anc1, anc2) INSERT_LIST(iseq, (anc1), (anc2))
 #endif
 
-#if 0 /* unused */
-/*
- * anc1: e1, e2, e3
- * anc2: e4, e5
- *#=>
- * anc1: e4, e5
- * anc2: e1, e2, e3
- */
-static void
-SWAP_LIST(ISEQ_ARG_DECLARE LINK_ANCHOR *anc1, LINK_ANCHOR *anc2)
-{
-    LINK_ANCHOR tmp = *anc2;
-
-    /* it has bug */
-    *anc2 = *anc1;
-    *anc1 = tmp;
-
-    verify_list("swap1", anc1);
-    verify_list("swap2", anc2);
-}
-#if CPDEBUG < 0
-#define SWAP_LIST(anc1, anc2) SWAP_LIST(iseq, (anc1), (anc2))
-#endif
-
-static LINK_ANCHOR *
-REVERSE_LIST(ISEQ_ARG_DECLARE LINK_ANCHOR *anc)
-{
-    LINK_ELEMENT *first, *last, *elem, *e;
-    first = &anc->anchor;
-    elem = first->next;
-    last = anc->last;
-
-    if (elem != 0) {
-	anc->anchor.next = last;
-	anc->last = elem;
-    }
-    else {
-	/* null list */
-	return anc;
-    }
-    while (elem) {
-	e = elem->next;
-	elem->next = elem->prev;
-	elem->prev = e;
-	elem = e;
-    }
-
-    first->next = last;
-    last->prev = first;
-    anc->last->next = 0;
-
-    verify_list("reverse", anc);
-    return anc;
-}
-#if CPDEBUG < 0
-#define REVERSE_LIST(anc) REVERSE_LIST(iseq, (anc))
-#endif
-#endif
-
 #if CPDEBUG && 0
 static void
 debug_list(ISEQ_ARG_DECLARE LINK_ANCHOR *anchor)
@@ -888,9 +996,12 @@ new_label_body(rb_iseq_t *iseq, long line)
     labelobj->link.type = ISEQ_ELEMENT_LABEL;
     labelobj->link.next = 0;
 
-    labelobj->label_no = iseq->compile_data->label_no++;
+    labelobj->label_no = ISEQ_COMPILE_DATA(iseq)->label_no++;
     labelobj->sc_state = 0;
     labelobj->sp = -1;
+    labelobj->refcnt = 0;
+    labelobj->set = 0;
+    labelobj->rescued = LABEL_RESCUE_NONE;
     return labelobj;
 }
 
@@ -923,7 +1034,7 @@ new_insn_core(rb_iseq_t *iseq, int line_no,
 }
 
 static INSN *
-new_insn_body(rb_iseq_t *iseq, int line_no, int insn_id, int argc, ...)
+new_insn_body(rb_iseq_t *iseq, int line_no, enum ruby_vminsn_type insn_id, int argc, ...)
 {
     VALUE *operands = 0;
     va_list argv;
@@ -940,60 +1051,65 @@ new_insn_body(rb_iseq_t *iseq, int line_no, int insn_id, int argc, ...)
     return new_insn_core(iseq, line_no, insn_id, argc, operands);
 }
 
-static rb_call_info_t *
-new_callinfo(rb_iseq_t *iseq, ID mid, int argc, VALUE block, unsigned long flag)
+static struct rb_call_info *
+new_callinfo(rb_iseq_t *iseq, ID mid, int argc, unsigned int flag, struct rb_call_info_kw_arg *kw_arg, int has_blockiseq)
 {
-    rb_call_info_t *ci = (rb_call_info_t *)compile_data_alloc(iseq, sizeof(rb_call_info_t));
+    size_t size = kw_arg != NULL ? sizeof(struct rb_call_info_with_kwarg) : sizeof(struct rb_call_info);
+    struct rb_call_info *ci = (struct rb_call_info *)compile_data_alloc(iseq, size);
+    struct rb_call_info_with_kwarg *ci_kw = (struct rb_call_info_with_kwarg *)ci;
+
     ci->mid = mid;
     ci->flag = flag;
     ci->orig_argc = argc;
-    ci->argc = argc;
 
-    if (block) {
-	GetISeqPtr(block, ci->blockiseq);
+    if (kw_arg) {
+	ci->flag |= VM_CALL_KWARG;
+	ci_kw->kw_arg = kw_arg;
+	ci->orig_argc += kw_arg->keyword_len;
+	iseq->body->ci_kw_size++;
     }
     else {
-	ci->blockiseq = 0;
-	if (!(ci->flag & (VM_CALL_ARGS_SPLAT | VM_CALL_ARGS_BLOCKARG))) {
-	    ci->flag |= VM_CALL_ARGS_SKIP_SETUP;
-	}
+	iseq->body->ci_size++;
     }
-    ci->vmstat = 0;
-    ci->blockptr = 0;
-    ci->recv = Qundef;
-    ci->call = 0; /* TODO: should set default function? */
-
-    ci->aux.index = iseq->callinfo_size++;
 
+    if (!(ci->flag & (VM_CALL_ARGS_SPLAT | VM_CALL_ARGS_BLOCKARG)) &&
+	kw_arg == NULL && !has_blockiseq) {
+	ci->flag |= VM_CALL_ARGS_SIMPLE;
+    }
     return ci;
 }
 
 static INSN *
-new_insn_send(rb_iseq_t *iseq, int line_no, VALUE id, VALUE argc, VALUE block, VALUE flag)
+new_insn_send(rb_iseq_t *iseq, int line_no, ID id, VALUE argc, const rb_iseq_t *blockiseq, VALUE flag, struct rb_call_info_kw_arg *keywords)
 {
-    VALUE *operands = (VALUE *)compile_data_alloc(iseq, sizeof(VALUE) * 1);
-    operands[0] = (VALUE)new_callinfo(iseq, SYM2ID(id), FIX2INT(argc), block, FIX2INT(flag));
-    return new_insn_core(iseq, line_no, BIN(send), 1, operands);
+    VALUE *operands = (VALUE *)compile_data_alloc(iseq, sizeof(VALUE) * 3);
+    operands[0] = (VALUE)new_callinfo(iseq, id, FIX2INT(argc), FIX2INT(flag), keywords, blockiseq != NULL);
+    operands[1] = Qfalse; /* cache */
+    operands[2] = (VALUE)blockiseq;
+    return new_insn_core(iseq, line_no, BIN(send), 3, operands);
 }
 
-static VALUE
+static rb_iseq_t *
 new_child_iseq(rb_iseq_t *iseq, NODE *node,
-	       VALUE name, VALUE parent, enum iseq_type type, int line_no)
+	       VALUE name, const rb_iseq_t *parent, enum iseq_type type, int line_no)
 {
-    VALUE ret;
+    rb_iseq_t *ret_iseq;
 
     debugs("[new_child_iseq]> ---------------------------------------\n");
-    ret = rb_iseq_new_with_opt(node, name,
-			       iseq_path(iseq->self), iseq_absolute_path(iseq->self),
-			       INT2FIX(line_no), parent, type, iseq->compile_data->option);
+    ret_iseq = rb_iseq_new_with_opt(node, name,
+				    iseq_path(iseq), iseq_absolute_path(iseq),
+				    INT2FIX(line_no), parent, type, ISEQ_COMPILE_DATA(iseq)->option);
     debugs("[new_child_iseq]< ---------------------------------------\n");
-    iseq_add_mark_object(iseq, ret);
-    return ret;
+    iseq_add_mark_object(iseq, (VALUE)ret_iseq);
+    return ret_iseq;
 }
 
 static int
 iseq_setup(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
 {
+    if (RTEST(ISEQ_COMPILE_DATA(iseq)->err_info))
+	return COMPILE_NG;
+
     /* debugs("[compile step 2] (iseq_array_to_linkedlist)\n"); */
 
     if (compile_debug > 5)
@@ -1005,14 +1121,14 @@ iseq_setup(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
     if (compile_debug > 5)
 	dump_disasm_list(FIRST_ELEMENT(anchor));
 
-    if (iseq->compile_data->option->instructions_unification) {
+    if (ISEQ_COMPILE_DATA(iseq)->option->instructions_unification) {
 	debugs("[compile step 3.2 (iseq_insns_unification)]\n");
 	iseq_insns_unification(iseq, anchor);
 	if (compile_debug > 5)
 	    dump_disasm_list(FIRST_ELEMENT(anchor));
     }
 
-    if (iseq->compile_data->option->stack_caching) {
+    if (ISEQ_COMPILE_DATA(iseq)->option->stack_caching) {
 	debugs("[compile step 3.3 (iseq_set_sequence_stackcaching)]\n");
 	iseq_set_sequence_stackcaching(iseq, anchor);
 	if (compile_debug > 5)
@@ -1020,70 +1136,73 @@ iseq_setup(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
     }
 
     debugs("[compile step 4.1 (iseq_set_sequence)]\n");
-    iseq_set_sequence(iseq, anchor);
+    if (!iseq_set_sequence(iseq, anchor)) return COMPILE_NG;
     if (compile_debug > 5)
 	dump_disasm_list(FIRST_ELEMENT(anchor));
 
     debugs("[compile step 4.2 (iseq_set_exception_table)]\n");
-    iseq_set_exception_table(iseq);
+    if (!iseq_set_exception_table(iseq)) return COMPILE_NG;
 
     debugs("[compile step 4.3 (set_optargs_table)] \n");
-    iseq_set_optargs_table(iseq);
+    if (!iseq_set_optargs_table(iseq)) return COMPILE_NG;
 
     debugs("[compile step 5 (iseq_translate_threaded_code)] \n");
-    rb_iseq_translate_threaded_code(iseq);
+    if (!rb_iseq_translate_threaded_code(iseq)) return COMPILE_NG;
 
     if (compile_debug > 1) {
-	VALUE str = rb_iseq_disasm(iseq->self);
+	VALUE str = rb_iseq_disasm(iseq);
 	printf("%s\n", StringValueCStr(str));
-	fflush(stdout);
     }
     debugs("[compile step: finish]\n");
 
-    return 0;
+    return COMPILE_OK;
 }
 
 static int
 iseq_set_exception_local_table(rb_iseq_t *iseq)
 {
+    /* TODO: every id table is same -> share it.
+     * Current problem is iseq_free().
+     */
     ID id_dollar_bang;
+    ID *ids = (ID *)ALLOC_N(ID, 1);
 
     CONST_ID(id_dollar_bang, "#$!");
-    iseq->local_table = (ID *)ALLOC_N(ID, 1);
-    iseq->local_table_size = 1;
-    iseq->local_size = iseq->local_table_size + 1;
-    iseq->local_table[0] = id_dollar_bang;
+    iseq->body->local_table_size = 1;
+    iseq->body->local_size = iseq->body->local_table_size + 1;
+    ids[0] = id_dollar_bang;
+    iseq->body->local_table = ids;
     return COMPILE_OK;
 }
 
 static int
-get_lvar_level(rb_iseq_t *iseq)
+get_lvar_level(const rb_iseq_t *iseq)
 {
     int lev = 0;
-    while (iseq != iseq->local_iseq) {
+    while (iseq != iseq->body->local_iseq) {
 	lev++;
-	iseq = iseq->parent_iseq;
+	iseq = iseq->body->parent_iseq;
     }
     return lev;
 }
 
 static int
-get_dyna_var_idx_at_raw(rb_iseq_t *iseq, ID id)
+get_dyna_var_idx_at_raw(const rb_iseq_t *iseq, ID id)
 {
-    int i;
+    unsigned int i;
 
-    for (i = 0; i < iseq->local_table_size; i++) {
-	if (iseq->local_table[i] == id) {
-	    return i;
+    for (i = 0; i < iseq->body->local_table_size; i++) {
+	if (iseq->body->local_table[i] == id) {
+	    return (int)i;
 	}
     }
     return -1;
 }
 
 static int
-get_local_var_idx(rb_iseq_t *iseq, ID id)
+get_local_var_idx(const rb_iseq_t *iseq, ID id)
 {
-    int idx = get_dyna_var_idx_at_raw(iseq->local_iseq, id);
+    int idx = get_dyna_var_idx_at_raw(iseq->body->local_iseq, id);
 
     if (idx < 0) {
 	rb_bug("get_local_var_idx: %d", idx);
@@ -1093,7 +1212,7 @@ get_local_var_idx(rb_iseq_t *iseq, ID id)
 }
 
 static int
-get_dyna_var_idx(rb_iseq_t *iseq, ID id, int *level, int *ls)
+get_dyna_var_idx(const rb_iseq_t *iseq, ID id, int *level, int *ls)
 {
     int lv = 0, idx = -1;
 
@@ -1102,7 +1221,7 @@ get_dyna_var_idx(rb_iseq_t *iseq, ID id, int *level, int *ls)
 	if (idx >= 0) {
 	    break;
 	}
-	iseq = iseq->parent_iseq;
+	iseq = iseq->body->parent_iseq;
 	lv++;
     }
 
@@ -1111,10 +1230,117 @@ get_dyna_var_idx(rb_iseq_t *iseq, ID id, int *level, int *ls)
     }
 
     *level = lv;
-    *ls = iseq->local_size;
+    *ls = iseq->body->local_size;
     return idx;
 }
 
+static void
+iseq_calc_param_size(rb_iseq_t *iseq)
+{
+    if (iseq->body->param.flags.has_opt ||
+	iseq->body->param.flags.has_post ||
+	iseq->body->param.flags.has_rest ||
+	iseq->body->param.flags.has_block ||
+	iseq->body->param.flags.has_kw ||
+	iseq->body->param.flags.has_kwrest) {
+
+	if (iseq->body->param.flags.has_block) {
+	    iseq->body->param.size = iseq->body->param.block_start + 1;
+	}
+	else if (iseq->body->param.flags.has_kwrest) {
+	    iseq->body->param.size = iseq->body->param.keyword->rest_start + 1;
+	}
+	else if (iseq->body->param.flags.has_kw) {
+	    iseq->body->param.size = iseq->body->param.keyword->bits_start + 1;
+	}
+	else if (iseq->body->param.flags.has_post) {
+	    iseq->body->param.size = iseq->body->param.post_start + iseq->body->param.post_num;
+	}
+	else if (iseq->body->param.flags.has_rest) {
+	    iseq->body->param.size = iseq->body->param.rest_start + 1;
+	}
+	else if (iseq->body->param.flags.has_opt) {
+	    iseq->body->param.size = iseq->body->param.lead_num + iseq->body->param.opt_num;
+	}
+	else {
+	    rb_bug("unreachable");
+	}
+    }
+    else {
+	iseq->body->param.size = iseq->body->param.lead_num;
+    }
+}
+
+static void
+iseq_set_arguments_keywords(rb_iseq_t *iseq, LINK_ANCHOR *optargs, const struct rb_args_info *args)
+{
+    NODE *node = args->kw_args;
+    struct rb_iseq_param_keyword *keyword;
+    const VALUE default_values = rb_ary_tmp_new(1);
+    const VALUE complex_mark = rb_str_tmp_new(0);
+    int kw = 0, rkw = 0, di = 0, i;
+
+    iseq->body->param.flags.has_kw = TRUE;
+    iseq->body->param.keyword = keyword = ZALLOC_N(struct rb_iseq_param_keyword, 1);
+    keyword->bits_start = get_dyna_var_idx_at_raw(iseq, args->kw_rest_arg->nd_vid);
+
+    while (node) {
+	NODE *val_node = node->nd_body->nd_value;
+	VALUE dv;
+
+	if (val_node == (NODE *)-1) {
+	    ++rkw;
+	}
+	else {
+	    switch (nd_type(val_node)) {
+	      case NODE_LIT:
+		dv = val_node->nd_lit;
+		iseq_add_mark_object(iseq, dv);
+		break;
+	      case NODE_NIL:
+		dv = Qnil;
+		break;
+	      case NODE_TRUE:
+		dv = Qtrue;
+		break;
+	      case NODE_FALSE:
+		dv = Qfalse;
+		break;
+	      default:
+		COMPILE_POPED(optargs, "kwarg", node); /* nd_type(node) == NODE_KW_ARG */
+		dv = complex_mark;
+	    }
+
+	    keyword->num = ++di;
+	    rb_ary_push(default_values, dv);
+	}
+
+	kw++;
+	node = node->nd_next;
+    }
+
+    keyword->num = kw;
+
+    if (args->kw_rest_arg->nd_cflag != 0) {
+	keyword->rest_start =  get_dyna_var_idx_at_raw(iseq, args->kw_rest_arg->nd_cflag);
+	iseq->body->param.flags.has_kwrest = TRUE;
+    }
+    keyword->required_num = rkw;
+    keyword->table = &iseq->body->local_table[keyword->bits_start - keyword->num];
+
+    {
+	VALUE *dvs = ALLOC_N(VALUE, RARRAY_LEN(default_values));
+
+	for (i = 0; i < RARRAY_LEN(default_values); i++) {
+	    VALUE dv = RARRAY_AREF(default_values, i);
+	    if (dv == complex_mark) dv = Qundef;
+	    dvs[i] = dv;
+	}
+
+	keyword->default_values = dvs;
+    }
+}
+
 static int
 iseq_set_arguments(rb_iseq_t *iseq, LINK_ANCHOR *optargs, NODE *node_args)
 {
@@ -1126,14 +1352,11 @@ iseq_set_arguments(rb_iseq_t *iseq, LINK_ANCHOR *optargs, NODE *node_args)
 	int last_comma = 0;
 	ID block_id = 0;
 
-	if (nd_type(node_args) != NODE_ARGS) {
-	    rb_bug("iseq_set_arguments: NODE_ARGS is expected, but %s",
-		   ruby_node_name(nd_type(node_args)));
-	}
-
+	EXPECT_NODE("iseq_set_arguments", node_args, NODE_ARGS);
 
-	iseq->argc = (int)args->pre_args_num;
-	debugs("  - argc: %d\n", iseq->argc);
+	iseq->body->param.lead_num = (int)args->pre_args_num;
+	if (iseq->body->param.lead_num > 0) iseq->body->param.flags.has_lead = TRUE;
+	debugs("  - argc: %d\n", iseq->body->param.lead_num);
 
 	rest_id = args->rest_arg;
 	if (rest_id == 1) {
@@ -1143,14 +1366,16 @@ iseq_set_arguments(rb_iseq_t *iseq, LINK_ANCHOR *optargs, NODE *node_args)
 	block_id = args->block_arg;
 
 	if (args->first_post_arg) {
-	    iseq->arg_post_start = get_dyna_var_idx_at_raw(iseq, args->first_post_arg);
-	    iseq->arg_post_len = args->post_args_num;
+	    iseq->body->param.post_start = get_dyna_var_idx_at_raw(iseq, args->first_post_arg);
+	    iseq->body->param.post_num = args->post_args_num;
+	    iseq->body->param.flags.has_post = TRUE;
 	}
 
 	if (args->opt_args) {
 	    NODE *node = args->opt_args;
 	    LABEL *label;
 	    VALUE labels = rb_ary_tmp_new(1);
+	    VALUE *opt_table;
 	    int i = 0, j;
 
 	    while (node) {
@@ -1166,48 +1391,28 @@ iseq_set_arguments(rb_iseq_t *iseq, LINK_ANCHOR *optargs, NODE *node_args)
 	    label = NEW_LABEL(nd_line(node_args));
 	    rb_ary_push(labels, (VALUE)label | 1);
 	    ADD_LABEL(optargs, label);
-	    i += 1;
 
-	    iseq->arg_opts = i;
-	    iseq->arg_opt_table = ALLOC_N(VALUE, i);
-	    MEMCPY(iseq->arg_opt_table, RARRAY_PTR(labels), VALUE, i);
-	    for (j = 0; j < i; j++) {
-		iseq->arg_opt_table[j] &= ~1;
+	    opt_table = ALLOC_N(VALUE, i+1);
+
+	    MEMCPY(opt_table, RARRAY_CONST_PTR(labels), VALUE, i+1);
+	    for (j = 0; j < i+1; j++) {
+		opt_table[j] &= ~1;
 	    }
 	    rb_ary_clear(labels);
-	}
-	else {
-	    iseq->arg_opts = 0;
+
+	    iseq->body->param.flags.has_opt = TRUE;
+	    iseq->body->param.opt_num = i;
+	    iseq->body->param.opt_table = opt_table;
 	}
 
 	if (args->kw_args) {
-	    NODE *node = args->kw_args;
-	    VALUE keywords = rb_ary_tmp_new(1);
-	    int i = 0, j;
-
-	    iseq->arg_keyword = get_dyna_var_idx_at_raw(iseq, args->kw_rest_arg->nd_vid);
-	    COMPILE(optargs, "kwarg", args->kw_rest_arg);
-	    while (node) {
-		rb_ary_push(keywords, INT2FIX(node->nd_body->nd_vid));
-		COMPILE_POPED(optargs, "kwarg", node); /* nd_type(node) == NODE_KW_ARG */
-		node = node->nd_next;
-		i += 1;
-	    }
-	    iseq->arg_keyword_check = (args->kw_rest_arg->nd_vid & ID_SCOPE_MASK) == ID_JUNK;
-	    iseq->arg_keywords = i;
-	    iseq->arg_keyword_table = ALLOC_N(ID, i);
-	    for (j = 0; j < i; j++) {
-		iseq->arg_keyword_table[j] = FIX2INT(RARRAY_PTR(keywords)[j]);
-	    }
-	    ADD_INSN(optargs, nd_line(args->kw_args), pop);
+	    iseq_set_arguments_keywords(iseq, optargs, args);
 	}
 	else if (args->kw_rest_arg) {
-	    iseq->arg_keyword = get_dyna_var_idx_at_raw(iseq, args->kw_rest_arg->nd_vid);
-	    COMPILE(optargs, "kwarg", args->kw_rest_arg);
-	    ADD_INSN(optargs, nd_line(args->kw_rest_arg), pop);
-	}
-	else {
-	    iseq->arg_keyword = -1;
+	    struct rb_iseq_param_keyword *keyword = ZALLOC_N(struct rb_iseq_param_keyword, 1);
+	    keyword->rest_start = get_dyna_var_idx_at_raw(iseq, args->kw_rest_arg->nd_vid);
+	    iseq->body->param.keyword = keyword;
+	    iseq->body->param.flags.has_kwrest = TRUE;
 	}
 
 	if (args->pre_init) { /* m_init */
@@ -1218,70 +1423,42 @@ iseq_set_arguments(rb_iseq_t *iseq, LINK_ANCHOR *optargs, NODE *node_args)
 	}
 
 	if (rest_id) {
-	    iseq->arg_rest = get_dyna_var_idx_at_raw(iseq, rest_id);
-
-	    if (iseq->arg_rest == -1) {
-		rb_bug("arg_rest: -1");
-	    }
+	    iseq->body->param.rest_start = get_dyna_var_idx_at_raw(iseq, rest_id);
+	    iseq->body->param.flags.has_rest = TRUE;
+	    assert(iseq->body->param.rest_start != -1);
 
-	    if (iseq->arg_post_start == 0) {
-		iseq->arg_post_start = iseq->arg_rest + 1;
+	    if (iseq->body->param.post_start == 0) { /* TODO: why that? */
+		iseq->body->param.post_start = iseq->body->param.rest_start + 1;
 	    }
 	}
 
 	if (block_id) {
-	    iseq->arg_block = get_dyna_var_idx_at_raw(iseq, block_id);
+	    iseq->body->param.block_start = get_dyna_var_idx_at_raw(iseq, block_id);
+	    iseq->body->param.flags.has_block = TRUE;
 	}
 
-	if (iseq->arg_opts != 0 || iseq->arg_post_len != 0 ||
-	    iseq->arg_rest != -1 || iseq->arg_block != -1 ||
-	    iseq->arg_keyword != -1) {
-	    iseq->arg_simple = 0;
+	iseq_calc_param_size(iseq);
 
-	    /* set arg_size: size of arguments */
-	    if (iseq->arg_keyword != -1) {
-		iseq->arg_size = iseq->arg_keyword + 1;
-	    }
-	    else if (iseq->arg_block != -1) {
-		iseq->arg_size = iseq->arg_block + 1;
-	    }
-	    else if (iseq->arg_post_len) {
-		iseq->arg_size = iseq->arg_post_start + iseq->arg_post_len;
-	    }
-	    else if (iseq->arg_rest != -1) {
-		iseq->arg_size = iseq->arg_rest + 1;
-	    }
-	    else if (iseq->arg_opts) {
-		iseq->arg_size = iseq->argc + iseq->arg_opts - 1;
-	    }
-	    else {
-		iseq->arg_size = iseq->argc;
-	    }
-	}
-	else {
-	    iseq->arg_simple = 1;
-	    iseq->arg_size = iseq->argc;
-	}
+	if (iseq->body->type == ISEQ_TYPE_BLOCK) {
+	    if (iseq->body->param.flags.has_opt    == FALSE &&
+		iseq->body->param.flags.has_post   == FALSE &&
+		iseq->body->param.flags.has_rest   == FALSE &&
+		iseq->body->param.flags.has_kw     == FALSE &&
+		iseq->body->param.flags.has_kwrest == FALSE) {
 
-	if (iseq->type == ISEQ_TYPE_BLOCK) {
-	    if (iseq->arg_opts == 0 && iseq->arg_post_len == 0 &&
-		iseq->arg_rest == -1 && iseq->arg_keyword == -1) {
-		if (iseq->argc == 1 && last_comma == 0) {
+		if (iseq->body->param.lead_num == 1 && last_comma == 0) {
 		    /* {|a|} */
-		    iseq->arg_simple |= 0x02;
+		    iseq->body->param.flags.ambiguous_param0 = TRUE;
 		}
 	    }
 	}
     }
-    else {
-	iseq->arg_simple = 1;
-    }
 
     return COMPILE_OK;
 }
 
 static int
-iseq_set_local_table(rb_iseq_t *iseq, ID *tbl)
+iseq_set_local_table(rb_iseq_t *iseq, const ID *tbl)
 {
     int size;
 
@@ -1294,12 +1471,13 @@ iseq_set_local_table(rb_iseq_t *iseq, ID *tbl)
     }
 
     if (size > 0) {
-	iseq->local_table = (ID *)ALLOC_N(ID, size);
-	MEMCPY(iseq->local_table, tbl, ID, size);
+	ID *ids = (ID *)ALLOC_N(ID, size);
+	MEMCPY(ids, tbl, ID, size);
+	iseq->body->local_table = ids;
     }
 
-    iseq->local_size = iseq->local_table_size = size;
-    iseq->local_size += 1;
+    iseq->body->local_size = iseq->body->local_table_size = size;
+    iseq->body->local_size += 1;
     /*
       if (lfp == dfp ) { // top, class, method
 	  dfp[-1]: svar
@@ -1308,7 +1486,7 @@ iseq_set_local_table(rb_iseq_t *iseq, ID *tbl)
       }
      */
 
-    debugs("iseq_set_local_table: %d, %d\n", iseq->local_size, iseq->local_table_size);
+    debugs("iseq_set_local_table: %d, %d\n", iseq->body->local_size, iseq->body->local_table_size);
     return COMPILE_OK;
 }
 
@@ -1365,32 +1543,30 @@ cdhash_set_label_i(VALUE key, VALUE val, void *ptr)
 static int
 iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
 {
-    LABEL *lobj;
-    INSN *iobj;
     struct iseq_line_info_entry *line_info_table;
     unsigned int last_line = 0;
     LINK_ELEMENT *list;
     VALUE *generated_iseq;
 
-    int k, pos, sp, stack_max = 0, line = 0;
+    int insn_num, code_index, line_info_index, sp, stack_max = 0, line = 0;
 
-    /* set label position */
+    /* fix label position */
     list = FIRST_ELEMENT(anchor);
-    k = pos = 0;
+    insn_num = code_index = 0;
     while (list) {
 	switch (list->type) {
 	  case ISEQ_ELEMENT_INSN:
 	    {
-		iobj = (INSN *)list;
+		INSN *iobj = (INSN *)list;
 		line = iobj->line_no;
-		pos += insn_data_length(iobj);
-		k++;
+		code_index += insn_data_length(iobj);
+		insn_num++;
 		break;
 	    }
 	  case ISEQ_ELEMENT_LABEL:
 	    {
-		lobj = (LABEL *)list;
-		lobj->position = pos;
+		LABEL *lobj = (LABEL *)list;
+		lobj->position = code_index;
 		lobj->set = TRUE;
 		break;
 	    }
@@ -1403,31 +1579,32 @@ iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
 	    {
 		ADJUST *adjust = (ADJUST *)list;
 		if (adjust->line_no != -1) {
-		    pos += 2 /* insn + 1 operand */;
-		    k++;
+		    code_index += 2 /* insn + 1 operand */;
+		    insn_num++;
 		}
 		break;
 	    }
 	  default:
 	    dump_disasm_list(FIRST_ELEMENT(anchor));
 	    dump_disasm_list(list);
-	    rb_compile_error(RSTRING_PTR(iseq->location.path), line,
-			     "error: set_sequence");
-	    break;
+	    COMPILE_ERROR(ruby_sourcefile_string, line, "error: set_sequence");
+	    return COMPILE_NG;
 	}
 	list = list->next;
     }
 
     /* make instruction sequence */
-    generated_iseq = ALLOC_N(VALUE, pos);
-    line_info_table = ALLOC_N(struct iseq_line_info_entry, k);
-    iseq->ic_entries = ALLOC_N(struct iseq_inline_cache_entry, iseq->ic_size);
-    MEMZERO(iseq->ic_entries, struct iseq_inline_cache_entry, iseq->ic_size);
-    iseq->callinfo_entries = ALLOC_N(rb_call_info_t, iseq->callinfo_size);
-    /* MEMZERO(iseq->callinfo_entries, rb_call_info_t, iseq->callinfo_size); */
+    generated_iseq = ALLOC_N(VALUE, code_index);
+    line_info_table = ALLOC_N(struct iseq_line_info_entry, insn_num);
+    iseq->body->is_entries = ZALLOC_N(union iseq_inline_storage_entry, iseq->body->is_size);
+    iseq->body->ci_entries = (struct rb_call_info *)ruby_xmalloc(sizeof(struct rb_call_info) * iseq->body->ci_size +
+								 sizeof(struct rb_call_info_with_kwarg) * iseq->body->ci_kw_size);
+    iseq->body->cc_entries = ZALLOC_N(struct rb_call_cache, iseq->body->ci_size + iseq->body->ci_kw_size);
+
+    ISEQ_COMPILE_DATA(iseq)->ci_index = ISEQ_COMPILE_DATA(iseq)->ci_kw_index = 0;
 
     list = FIRST_ELEMENT(anchor);
-    k = pos = sp = 0;
+    line_info_index = code_index = sp = 0;
 
     while (list) {
 	switch (list->type) {
@@ -1436,8 +1613,7 @@ iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
 		int j, len, insn;
 		const char *types;
 		VALUE *operands;
-
-		iobj = (INSN *)list;
+		INSN *iobj = (INSN *)list;
 
 		/* update sp */
 		sp = calc_sp_depth(sp, iobj);
@@ -1448,7 +1624,7 @@ iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
 		/* fprintf(stderr, "insn: %-16s, sp: %d\n", insn_name(iobj->insn_id), sp); */
 		operands = iobj->operands;
 		insn = iobj->insn_id;
-		generated_iseq[pos] = insn;
+		generated_iseq[code_index] = insn;
 		types = insn_op_types(insn);
 		len = insn_len(insn);
 
@@ -1456,12 +1632,12 @@ iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
 		if (iobj->operand_size != len - 1) {
 		    /* printf("operand size miss! (%d, %d)\n", iobj->operand_size, len); */
 		    dump_disasm_list(list);
-		    rb_compile_error(RSTRING_PTR(iseq->location.path), iobj->line_no,
-				     "operand size miss! (%d for %d)",
-				     iobj->operand_size, len - 1);
 		    xfree(generated_iseq);
 		    xfree(line_info_table);
-		    return 0;
+		    COMPILE_ERROR(ruby_sourcefile_string, iobj->line_no,
+				  "operand size miss! (%d for %d)",
+				  iobj->operand_size, len - 1);
+		    return COMPILE_NG;
 		}
 
 		for (j = 0; types[j]; j++) {
@@ -1471,15 +1647,16 @@ iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
 		      case TS_OFFSET:
 			{
 			    /* label(destination position) */
-			    lobj = (LABEL *)operands[j];
+			    LABEL *lobj = (LABEL *)operands[j];
 			    if (!lobj->set) {
-				rb_compile_error(RSTRING_PTR(iseq->location.path), iobj->line_no,
-						 "unknown label");
+				COMPILE_ERROR(ruby_sourcefile_string, iobj->line_no,
+					      "unknown label");
+				return COMPILE_NG;
 			    }
 			    if (lobj->sp == -1) {
 				lobj->sp = sp;
 			    }
-			    generated_iseq[pos + 1 + j] = lobj->position - (pos + len);
+			    generated_iseq[code_index + 1 + j] = lobj->position - (code_index + len);
 			    break;
 			}
 		      case TS_CDHASH:
@@ -1487,87 +1664,102 @@ iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
 			    VALUE map = operands[j];
 			    struct cdhash_set_label_struct data;
                             data.hash = map;
-                            data.pos = pos;
+                            data.pos = code_index;
                             data.len = len;
 			    rb_hash_foreach(map, cdhash_set_label_i, (VALUE)&data);
 
-			    hide_obj(map);
-			    generated_iseq[pos + 1 + j] = map;
+			    rb_hash_rehash(map);
+			    freeze_hide_obj(map);
+			    generated_iseq[code_index + 1 + j] = map;
 			    break;
 			}
 		      case TS_LINDEX:
 		      case TS_NUM:	/* ulong */
-			generated_iseq[pos + 1 + j] = FIX2INT(operands[j]);
+			generated_iseq[code_index + 1 + j] = FIX2INT(operands[j]);
 			break;
 		      case TS_ISEQ:	/* iseq */
 			{
 			    VALUE v = operands[j];
-			    rb_iseq_t *block = 0;
-			    if (v) {
-				GetISeqPtr(v, block);
-			    }
-			    generated_iseq[pos + 1 + j] = (VALUE)block;
+			    generated_iseq[code_index + 1 + j] = v;
 			    break;
 			}
 		      case TS_VALUE:	/* VALUE */
 			{
 			    VALUE v = operands[j];
-			    generated_iseq[pos + 1 + j] = v;
+			    generated_iseq[code_index + 1 + j] = v;
 			    /* to mark ruby object */
 			    iseq_add_mark_object(iseq, v);
 			    break;
 			}
 		      case TS_IC: /* inline cache */
 			{
-			    int ic_index = FIX2INT(operands[j]);
-			    IC ic = &iseq->ic_entries[ic_index];
-			    if (UNLIKELY(ic_index >= iseq->ic_size)) {
-				rb_bug("iseq_set_sequence: ic_index overflow: index: %d, size: %d", ic_index, iseq->ic_size);
+			    unsigned int ic_index = FIX2UINT(operands[j]);
+			    IC ic = (IC)&iseq->body->is_entries[ic_index];
+			    if (UNLIKELY(ic_index >= iseq->body->is_size)) {
+				rb_bug("iseq_set_sequence: ic_index overflow: index: %d, size: %d", ic_index, iseq->body->is_size);
 			    }
-			    generated_iseq[pos + 1 + j] = (VALUE)ic;
+			    generated_iseq[code_index + 1 + j] = (VALUE)ic;
 			    break;
 			}
 		      case TS_CALLINFO: /* call info */
 			{
-			    rb_call_info_t *base_ci = (rb_call_info_t *)operands[j];
-			    rb_call_info_t *ci = &iseq->callinfo_entries[base_ci->aux.index];
-			    *ci = *base_ci;
-
-			    if (UNLIKELY(base_ci->aux.index >= iseq->callinfo_size)) {
-				rb_bug("iseq_set_sequence: ci_index overflow: index: %d, size: %d", base_ci->argc, iseq->callinfo_size);
+			    struct rb_call_info *base_ci = (struct rb_call_info *)operands[j];
+			    struct rb_call_info *ci;
+
+			    if (base_ci->flag & VM_CALL_KWARG) {
+				struct rb_call_info_with_kwarg *ci_kw_entries = (struct rb_call_info_with_kwarg *)&iseq->body->ci_entries[iseq->body->ci_size];
+				struct rb_call_info_with_kwarg *ci_kw = &ci_kw_entries[ISEQ_COMPILE_DATA(iseq)->ci_kw_index++];
+				*ci_kw = *((struct rb_call_info_with_kwarg *)base_ci);
+				ci = (struct rb_call_info *)ci_kw;
+				assert(ISEQ_COMPILE_DATA(iseq)->ci_kw_index <= iseq->body->ci_kw_size);
 			    }
-			    generated_iseq[pos + 1 + j] = (VALUE)ci;
+			    else {
+				ci = &iseq->body->ci_entries[ISEQ_COMPILE_DATA(iseq)->ci_index++];
+				*ci = *base_ci;
+				assert(ISEQ_COMPILE_DATA(iseq)->ci_index <= iseq->body->ci_size);
+			    }
+
+			    generated_iseq[code_index + 1 + j] = (VALUE)ci;
+			    break;
+			}
+		      case TS_CALLCACHE:
+			{
+			    struct rb_call_cache *cc = &iseq->body->cc_entries[ISEQ_COMPILE_DATA(iseq)->ci_index + ISEQ_COMPILE_DATA(iseq)->ci_kw_index - 1];
+			    generated_iseq[code_index + 1 + j] = (VALUE)cc;
 			    break;
 			}
 		      case TS_ID: /* ID */
-			generated_iseq[pos + 1 + j] = SYM2ID(operands[j]);
+			generated_iseq[code_index + 1 + j] = SYM2ID(operands[j]);
 			break;
 		      case TS_GENTRY:
 			{
 			    struct rb_global_entry *entry =
 				(struct rb_global_entry *)(operands[j] & (~1));
-			    generated_iseq[pos + 1 + j] = (VALUE)entry;
+			    generated_iseq[code_index + 1 + j] = (VALUE)entry;
 			}
 			break;
+		      case TS_FUNCPTR:
+			generated_iseq[code_index + 1 + j] = operands[j];
+			break;
 		      default:
-			rb_compile_error(RSTRING_PTR(iseq->location.path), iobj->line_no,
-					 "unknown operand type: %c", type);
 			xfree(generated_iseq);
 			xfree(line_info_table);
-			return 0;
+			COMPILE_ERROR(ruby_sourcefile_string, iobj->line_no,
+				      "unknown operand type: %c", type);
+			return COMPILE_NG;
 		    }
 		}
 		if (last_line != iobj->line_no) {
-		    line_info_table[k].line_no = last_line = iobj->line_no;
-		    line_info_table[k].position = pos;
-		    k++;
+		    line_info_table[line_info_index].line_no = last_line = iobj->line_no;
+		    line_info_table[line_info_index].position = code_index;
+		    line_info_index++;
 		}
-		pos += len;
+		code_index += len;
 		break;
 	    }
 	  case ISEQ_ELEMENT_LABEL:
 	    {
-		lobj = (LABEL *)list;
+		LABEL *lobj = (LABEL *)list;
 		if (lobj->sp == -1) {
 		    lobj->sp = sp;
 		}
@@ -1591,25 +1783,26 @@ iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
 		if (adjust->line_no != -1) {
 		    if (orig_sp - sp > 0) {
 			if (last_line != (unsigned int)adjust->line_no) {
-			    line_info_table[k].line_no = last_line = adjust->line_no;
-			    line_info_table[k].position = pos;
-			    k++;
+			    line_info_table[line_info_index].line_no = last_line = adjust->line_no;
+			    line_info_table[line_info_index].position = code_index;
+			    line_info_index++;
 			}
-			generated_iseq[pos++] = BIN(adjuststack);
-			generated_iseq[pos++] = orig_sp - sp;
+			generated_iseq[code_index++] = BIN(adjuststack);
+			generated_iseq[code_index++] = orig_sp - sp;
 		    }
 		    else if (orig_sp - sp == 0) {
 			/* jump to next insn */
 			if (last_line != (unsigned int)adjust->line_no) {
-			    line_info_table[k].line_no = last_line = adjust->line_no;
-			    line_info_table[k].position = pos;
-			    k++;
+			    line_info_table[line_info_index].line_no = last_line = adjust->line_no;
+			    line_info_table[line_info_index].position = code_index;
+			    line_info_index++;
 			}
-			generated_iseq[pos++] = BIN(jump);
-			generated_iseq[pos++] = 0;
+			generated_iseq[code_index++] = BIN(nop);
+			generated_iseq[code_index++] = BIN(nop);
 		    }
 		    else {
-			rb_bug("iseq_set_sequence: adjust bug");
+			rb_compile_bug_str(ruby_sourcefile_string, adjust->line_no,
+					   "iseq_set_sequence: adjust bug %d < %d", orig_sp, sp);
 		    }
 		}
 		break;
@@ -1621,20 +1814,13 @@ iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
 	list = list->next;
     }
 
-#if 0 /* XXX */
-    /* this check need dead code elimination */
-    if (sp != 1) {
-	rb_bug("SP is not 0 on %s (%d)\n", RSTRING_PTR(iseq->name), sp);
-    }
-#endif
-
-    iseq->iseq = (void *)generated_iseq;
-    iseq->iseq_size = pos;
-    iseq->stack_max = stack_max;
+    iseq->body->iseq_encoded = (void *)generated_iseq;
+    iseq->body->iseq_size = code_index;
+    iseq->body->stack_max = stack_max;
 
-    line_info_table = ruby_xrealloc(line_info_table, k * sizeof(struct iseq_line_info_entry));
-    iseq->line_info_table = line_info_table;
-    iseq->line_info_size = k;
+    REALLOC_N(line_info_table, struct iseq_line_info_entry, line_info_index);
+    iseq->body->line_info_table = line_info_table;
+    iseq->body->line_info_size = line_info_index;
 
     return COMPILE_OK;
 }
@@ -1654,48 +1840,54 @@ label_get_sp(LABEL *lobj)
 static int
 iseq_set_exception_table(rb_iseq_t *iseq)
 {
-    VALUE *tptr, *ptr;
-    int tlen, i;
+    const VALUE *tptr, *ptr;
+    unsigned int tlen, i;
     struct iseq_catch_table_entry *entry;
 
-    tlen = (int)RARRAY_LEN(iseq->compile_data->catch_table_ary);
-    tptr = RARRAY_PTR(iseq->compile_data->catch_table_ary);
+    tlen = (int)RARRAY_LEN(ISEQ_COMPILE_DATA(iseq)->catch_table_ary);
+    tptr = RARRAY_CONST_PTR(ISEQ_COMPILE_DATA(iseq)->catch_table_ary);
 
-    iseq->catch_table = tlen ? ALLOC_N(struct iseq_catch_table_entry, tlen) : 0;
-    iseq->catch_table_size = tlen;
+    if (tlen > 0) {
+	struct iseq_catch_table *table = xmalloc(iseq_catch_table_bytes(tlen));
+	table->size = tlen;
 
-    for (i = 0; i < tlen; i++) {
-	ptr = RARRAY_PTR(tptr[i]);
-	entry = &iseq->catch_table[i];
-	entry->type = (enum catch_type)(ptr[0] & 0xffff);
-	entry->start = label_get_position((LABEL *)(ptr[1] & ~1));
-	entry->end = label_get_position((LABEL *)(ptr[2] & ~1));
-	entry->iseq = ptr[3];
+	for (i = 0; i < table->size; i++) {
+	    ptr = RARRAY_CONST_PTR(tptr[i]);
+	    entry = &table->entries[i];
+	    entry->type = (enum catch_type)(ptr[0] & 0xffff);
+	    entry->start = label_get_position((LABEL *)(ptr[1] & ~1));
+	    entry->end = label_get_position((LABEL *)(ptr[2] & ~1));
+	    entry->iseq = (rb_iseq_t *)ptr[3];
 
-	/* register iseq as mark object */
-	if (entry->iseq != 0) {
-	    iseq_add_mark_object(iseq, entry->iseq);
-	}
-
-	/* stack depth */
-	if (ptr[4]) {
-	    LABEL *lobj = (LABEL *)(ptr[4] & ~1);
-	    entry->cont = label_get_position(lobj);
-	    entry->sp = label_get_sp(lobj);
+	    /* register iseq as mark object */
+	    if (entry->iseq != 0) {
+		iseq_add_mark_object(iseq, (VALUE)entry->iseq);
+	    }
 
-	    /* TODO: Dirty Hack!  Fix me */
-	    if (entry->type == CATCH_TYPE_RESCUE ||
-		entry->type == CATCH_TYPE_BREAK ||
-		entry->type == CATCH_TYPE_NEXT) {
-		entry->sp--;
+	    /* stack depth */
+	    if (ptr[4]) {
+		LABEL *lobj = (LABEL *)(ptr[4] & ~1);
+		entry->cont = label_get_position(lobj);
+		entry->sp = label_get_sp(lobj);
+
+		/* TODO: Dirty Hack!  Fix me */
+		if (entry->type == CATCH_TYPE_RESCUE ||
+		    entry->type == CATCH_TYPE_BREAK ||
+		    entry->type == CATCH_TYPE_NEXT) {
+		    entry->sp--;
+		}
+	    }
+	    else {
+		entry->cont = 0;
 	    }
 	}
-	else {
-	    entry->cont = 0;
-	}
+	iseq->body->catch_table = table;
+	RB_OBJ_WRITE(iseq, &ISEQ_COMPILE_DATA(iseq)->catch_table_ary, 0); /* free */
+    }
+    else {
+	iseq->body->catch_table = NULL;
     }
 
-    iseq->compile_data->catch_table_ary = 0;	/* free */
     return COMPILE_OK;
 }
 
@@ -1712,11 +1904,11 @@ static int
 iseq_set_optargs_table(rb_iseq_t *iseq)
 {
     int i;
+    VALUE *opt_table = (VALUE *)iseq->body->param.opt_table;
 
-    if (iseq->arg_opts != 0) {
-	for (i = 0; i < iseq->arg_opts; i++) {
-	    iseq->arg_opt_table[i] =
-		label_get_position((LABEL *)iseq->arg_opt_table[i]);
+    if (iseq->body->param.flags.has_opt) {
+	for (i = 0; i < iseq->body->param.opt_num + 1; i++) {
+	    opt_table[i] = label_get_position((LABEL *)opt_table[i]);
 	}
     }
     return COMPILE_OK;
@@ -1766,6 +1958,50 @@ get_prev_insn(INSN *iobj)
     return 0;
 }
 
+static void
+unref_destination(INSN *iobj)
+{
+    LABEL *lobj = (LABEL *)OPERAND_AT(iobj, 0);
+    --lobj->refcnt;
+    if (!lobj->refcnt) REMOVE_ELEM(&lobj->link);
+}
+
+static void
+replace_destination(INSN *dobj, INSN *nobj)
+{
+    VALUE n = OPERAND_AT(nobj, 0);
+    LABEL *dl = (LABEL *)OPERAND_AT(dobj, 0);
+    LABEL *nl = (LABEL *)n;
+    --dl->refcnt;
+    ++nl->refcnt;
+    OPERAND_AT(dobj, 0) = n;
+    if (!dl->refcnt) REMOVE_ELEM(&dl->link);
+}
+
+static int
+remove_unreachable_chunk(LINK_ELEMENT *i)
+{
+    int removed = 0;
+    while (i) {
+	if (i->type == ISEQ_ELEMENT_INSN) {
+	    switch (INSN_OF(i)) {
+	      case BIN(jump):
+	      case BIN(branchif):
+	      case BIN(branchunless):
+	      case BIN(branchnil):
+		unref_destination((INSN *)i);
+	      default:
+		break;
+	    }
+	}
+	else break;
+	REMOVE_ELEM(i);
+	removed = 1;
+	i = i->next;
+    }
+    return removed;
+}
+
 static int
 iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcallopt)
 {
@@ -1793,13 +2029,14 @@ iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcal
 	     * =>
 	     *   LABEL:
 	     */
+	    unref_destination(iobj);
 	    REMOVE_ELEM(&iobj->link);
 	}
-	else if (iobj != diobj && diobj->insn_id == BIN(jump)) {
-	    if (OPERAND_AT(iobj, 0) != OPERAND_AT(diobj, 0)) {
-		OPERAND_AT(iobj, 0) = OPERAND_AT(diobj, 0);
-		goto again;
-	    }
+	else if (iobj != diobj && diobj->insn_id == BIN(jump) &&
+		 OPERAND_AT(iobj, 0) != OPERAND_AT(diobj, 0)) {
+	    replace_destination(iobj, diobj);
+	    remove_unreachable_chunk(iobj->link.next);
+	    goto again;
 	}
 	else if (diobj->insn_id == BIN(leave)) {
 	    /*
@@ -1813,14 +2050,14 @@ iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcal
 	     * LABEL:
 	     *  leave
 	     */
-	    INSN *eiobj = new_insn_core(iseq, iobj->line_no, BIN(leave),
-					diobj->operand_size, diobj->operands);
 	    INSN *popiobj = new_insn_core(iseq, iobj->line_no,
 					  BIN(pop), 0, 0);
 	    /* replace */
-	    REPLACE_ELEM((LINK_ELEMENT *)iobj, (LINK_ELEMENT *)eiobj);
-	    INSERT_ELEM_NEXT((LINK_ELEMENT *)eiobj, (LINK_ELEMENT *)popiobj);
-	    iobj = popiobj;
+	    unref_destination(iobj);
+	    iobj->insn_id = BIN(leave);
+	    iobj->operand_size = 0;
+	    INSERT_ELEM_NEXT(&iobj->link, &popiobj->link);
+	    goto again;
 	}
 	/*
 	 * useless jump elimination (if/unless destination):
@@ -1842,13 +2079,21 @@ iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcal
 	    if (niobj == (INSN *)get_destination_insn(piobj)) {
 		piobj->insn_id = (piobj->insn_id == BIN(branchif))
 		  ? BIN(branchunless) : BIN(branchif);
-		OPERAND_AT(piobj, 0) = OPERAND_AT(iobj, 0);
+		replace_destination(piobj, iobj);
 		REMOVE_ELEM(&iobj->link);
 	    }
 	}
+	else if (remove_unreachable_chunk(iobj->link.next)) {
+	    goto again;
+	}
+    }
+
+    if (iobj->insn_id == BIN(leave)) {
+	remove_unreachable_chunk(iobj->link.next);
     }
 
     if (iobj->insn_id == BIN(branchif) ||
+	iobj->insn_id == BIN(branchnil) ||
 	iobj->insn_id == BIN(branchunless)) {
 	/*
 	 *   if L1
@@ -1859,12 +2104,124 @@ iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcal
 	 *   if L2
 	 */
 	INSN *nobj = (INSN *)get_destination_insn(iobj);
-	if (nobj->insn_id == BIN(jump)) {
-	    OPERAND_AT(iobj, 0) = OPERAND_AT(nobj, 0);
+	INSN *pobj = (INSN *)iobj->link.prev;
+	int prev_dup = 0;
+	if (pobj) {
+	    if (pobj->link.type != ISEQ_ELEMENT_INSN)
+		pobj = 0;
+	    else if (pobj->insn_id == BIN(dup))
+		prev_dup = 1;
+	}
+
+	for (;;) {
+	    if (nobj->insn_id == BIN(jump)) {
+		replace_destination(iobj, nobj);
+	    }
+	    else if (prev_dup && nobj->insn_id == BIN(dup) &&
+		     !!(nobj = (INSN *)nobj->link.next) &&
+		     /* basic blocks, with no labels in the middle */
+		     nobj->insn_id == iobj->insn_id) {
+		/*
+		 *   dup
+		 *   if L1
+		 *   ...
+		 * L1:
+		 *   dup
+		 *   if L2
+		 * =>
+		 *   dup
+		 *   if L2
+		 *   ...
+		 * L1:
+		 *   dup
+		 *   if L2
+		 */
+		replace_destination(iobj, nobj);
+	    }
+	    else if (pobj) {
+		/*
+		 *   putnil
+		 *   if L1
+		 * =>
+		 *   # nothing
+		 *
+		 *   putobject true
+		 *   if L1
+		 * =>
+		 *   jump L1
+		 *
+		 *   putstring ".."
+		 *   if L1
+		 * =>
+		 *   jump L1
+		 *
+		 *   putstring ".."
+		 *   dup
+		 *   if L1
+		 * =>
+		 *   putstring ".."
+		 *   jump L1
+		 *
+		 */
+		int cond;
+		if (prev_dup && pobj->link.prev->type == ISEQ_ELEMENT_INSN) {
+		    pobj = (INSN *)pobj->link.prev;
+		}
+		if (pobj->insn_id == BIN(putobject)) {
+		    cond = (iobj->insn_id == BIN(branchif) ?
+			    OPERAND_AT(pobj, 0) != Qfalse :
+			    iobj->insn_id == BIN(branchunless) ?
+			    OPERAND_AT(pobj, 0) == Qfalse :
+			    FALSE);
+		}
+		else if (pobj->insn_id == BIN(putstring)) {
+		    cond = iobj->insn_id == BIN(branchif);
+		}
+		else if (pobj->insn_id == BIN(putnil)) {
+		    cond = iobj->insn_id != BIN(branchif);
+		}
+		else break;
+		REMOVE_ELEM(iobj->link.prev);
+		if (cond) {
+		    iobj->insn_id = BIN(jump);
+		    goto again;
+		}
+		else {
+		    unref_destination(iobj);
+		    REMOVE_ELEM(&iobj->link);
+		}
+		break;
+	    }
+	    else break;
+	    nobj = (INSN *)get_destination_insn(nobj);
+	}
+    }
+
+    if (iobj->insn_id == BIN(pop)) {
+	/*
+	 *  putself / putnil / putobject obj / putstring "..."
+	 *  pop
+	 * =>
+	 *  # do nothing
+	 */
+	LINK_ELEMENT *prev = iobj->link.prev;
+	if (prev->type == ISEQ_ELEMENT_INSN) {
+	    enum ruby_vminsn_type previ = ((INSN *)prev)->insn_id;
+	    if (previ == BIN(putobject) || previ == BIN(putnil) ||
+		previ == BIN(putself) || previ == BIN(putstring)) {
+		/* just push operand or static value and pop soon, no
+		 * side effects */
+		REMOVE_ELEM(prev);
+		REMOVE_ELEM(&iobj->link);
+	    }
 	}
     }
 
-    if (do_tailcallopt && iobj->insn_id == BIN(leave)) {
+    if (do_tailcallopt &&
+	(iobj->insn_id == BIN(send) ||
+	 iobj->insn_id == BIN(opt_aref_with) ||
+	 iobj->insn_id == BIN(opt_aset_with) ||
+	 iobj->insn_id == BIN(invokesuper))) {
 	/*
 	 *  send ...
 	 *  leave
@@ -1872,11 +2229,43 @@ iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcal
 	 *  send ..., ... | VM_CALL_TAILCALL, ...
 	 *  leave # unreachable
 	 */
-	INSN *piobj = (INSN *)get_prev_insn((INSN *)list);
+	INSN *piobj = NULL;
+	if (iobj->link.next) {
+	    LINK_ELEMENT *next = iobj->link.next;
+	    do {
+		if (next->type != ISEQ_ELEMENT_INSN) {
+		    next = next->next;
+		    continue;
+		}
+		switch (INSN_OF(next)) {
+		  case BIN(nop):
+		  /*case BIN(trace):*/
+		    next = next->next;
+		    break;
+		  case BIN(jump):
+		    /* if cond
+		     *   return tailcall
+		     * end
+		     */
+		    next = get_destination_insn((INSN *)next);
+		    break;
+		  case BIN(leave):
+		    piobj = iobj;
+		  default:
+		    next = NULL;
+		    break;
+		}
+	    } while (next);
+	}
 
-	if (piobj->insn_id == BIN(send) || piobj->insn_id == BIN(opt_send_simple)) {
-	    rb_call_info_t *ci = (rb_call_info_t *)piobj->operands[0];
-	    if (ci->blockiseq == 0) {
+	if (piobj) {
+	    struct rb_call_info *ci = (struct rb_call_info *)piobj->operands[0];
+	    if (piobj->insn_id == BIN(send) || piobj->insn_id == BIN(invokesuper)) {
+		if (piobj->operands[2] == 0) { /* no blockiseq */
+		    ci->flag |= VM_CALL_TAILCALL;
+		}
+	    }
+	    else {
 		ci->flag |= VM_CALL_TAILCALL;
 	    }
 	}
@@ -1887,18 +2276,17 @@ iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcal
 static int
 insn_set_specialized_instruction(rb_iseq_t *iseq, INSN *iobj, int insn_id)
 {
-    int old_opsize = iobj->operand_size;
     iobj->insn_id = insn_id;
     iobj->operand_size = insn_len(insn_id) - 1;
 
-    if (iobj->operand_size > old_opsize) {
+    if (insn_id == BIN(opt_neq)) {
 	VALUE *old_operands = iobj->operands;
-	if (insn_id != BIN(opt_neq)) {
-	    rb_bug("insn_set_specialized_instruction: unknown insn: %d", insn_id);
-	}
+	iobj->operand_size = 4;
 	iobj->operands = (VALUE *)compile_data_alloc(iseq, iobj->operand_size * sizeof(VALUE));
 	iobj->operands[0] = old_operands[0];
-	iobj->operands[1] = (VALUE)new_callinfo(iseq, idEq, 1, 0, 0);
+	iobj->operands[1] = Qfalse; /* CALL_CACHE */
+	iobj->operands[2] = (VALUE)new_callinfo(iseq, idEq, 1, 0, NULL, FALSE);
+	iobj->operands[3] = Qfalse; /* CALL_CACHE */
     }
 
     return COMPILE_OK;
@@ -1908,10 +2296,11 @@ static int
 iseq_specialized_instruction(rb_iseq_t *iseq, INSN *iobj)
 {
     if (iobj->insn_id == BIN(send)) {
-	rb_call_info_t *ci = (rb_call_info_t *)OPERAND_AT(iobj, 0);
+	struct rb_call_info *ci = (struct rb_call_info *)OPERAND_AT(iobj, 0);
+	const rb_iseq_t *blockiseq = (rb_iseq_t *)OPERAND_AT(iobj, 2);
 
 #define SP_INSN(opt) insn_set_specialized_instruction(iseq, iobj, BIN(opt_##opt))
-	if (ci->blockiseq == 0 && (ci->flag & ~VM_CALL_ARGS_SKIP_SETUP) == 0) {
+	if (ci->flag & VM_CALL_ARGS_SIMPLE) {
 	    switch (ci->orig_argc) {
 	      case 0:
 		switch (ci->mid) {
@@ -1939,10 +2328,17 @@ iseq_specialized_instruction(rb_iseq_t *iseq, INSN *iobj)
 		  case idAREF:	 SP_INSN(aref);	  return COMPILE_OK;
 		}
 		break;
+	      case 2:
+		switch (ci->mid) {
+		  case idASET:	 SP_INSN(aset);	  return COMPILE_OK;
+		}
+		break;
 	    }
 	}
-	if (ci->flag & VM_CALL_ARGS_SKIP_SETUP) {
-	    iobj->insn_id = BIN(opt_send_simple);
+
+	if ((ci->flag & VM_CALL_ARGS_BLOCKARG) == 0 && blockiseq == NULL) {
+	    iobj->insn_id = BIN(opt_send_without_block);
+	    iobj->operand_size = insn_len(iobj->insn_id) - 1;
 	}
     }
 #undef SP_INSN
@@ -1950,20 +2346,37 @@ iseq_specialized_instruction(rb_iseq_t *iseq, INSN *iobj)
     return COMPILE_OK;
 }
 
+static inline int
+tailcallable_p(rb_iseq_t *iseq)
+{
+    switch (iseq->body->type) {
+      case ISEQ_TYPE_RESCUE:
+      case ISEQ_TYPE_ENSURE:
+	/* rescue block can't tail call because of errinfo */
+	return FALSE;
+      default:
+	return TRUE;
+    }
+}
+
 static int
 iseq_optimize(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
 {
     LINK_ELEMENT *list;
-    const int do_peepholeopt = iseq->compile_data->option->peephole_optimization;
-    const int do_tailcallopt = iseq->compile_data->option->tailcall_optimization;
-    const int do_si = iseq->compile_data->option->specialized_instruction;
-    const int do_ou = iseq->compile_data->option->operands_unification;
+    const int do_peepholeopt = ISEQ_COMPILE_DATA(iseq)->option->peephole_optimization;
+    const int do_tailcallopt = tailcallable_p(iseq) &&
+	ISEQ_COMPILE_DATA(iseq)->option->tailcall_optimization;
+    const int do_si = ISEQ_COMPILE_DATA(iseq)->option->specialized_instruction;
+    const int do_ou = ISEQ_COMPILE_DATA(iseq)->option->operands_unification;
+    int rescue_level = 0;
+    int tailcallopt = do_tailcallopt;
+
     list = FIRST_ELEMENT(anchor);
 
     while (list) {
 	if (list->type == ISEQ_ELEMENT_INSN) {
 	    if (do_peepholeopt) {
-		iseq_peephole_optimize(iseq, list, do_tailcallopt);
+		iseq_peephole_optimize(iseq, list, tailcallopt);
 	    }
 	    if (do_si) {
 		iseq_specialized_instruction(iseq, (INSN *)list);
@@ -1972,6 +2385,17 @@ iseq_optimize(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
 		insn_operands_unification((INSN *)list);
 	    }
 	}
+	if (list->type == ISEQ_ELEMENT_LABEL) {
+	    switch (((LABEL *)list)->rescued) {
+	      case LABEL_RESCUE_BEG:
+		rescue_level++;
+		tailcallopt = FALSE;
+		break;
+	      case LABEL_RESCUE_END:
+		if (!--rescue_level) tailcallopt = do_tailcallopt;
+		break;
+	    }
+	}
 	list = list->next;
     }
     return COMPILE_OK;
@@ -2095,9 +2519,9 @@ insn_set_sc_state(rb_iseq_t *iseq, INSN *iobj, int state)
 		dump_disasm_list((LINK_ELEMENT *)iobj);
 		dump_disasm_list((LINK_ELEMENT *)lobj);
 		printf("\n-- %d, %d\n", lobj->sc_state, nstate);
-		rb_compile_error(RSTRING_PTR(iseq->location.path), iobj->line_no,
-				 "insn_set_sc_state error\n");
-		return 0;
+		COMPILE_ERROR(ruby_sourcefile_string, iobj->line_no,
+			      "insn_set_sc_state error\n");
+		return COMPILE_NG;
 	    }
 	}
 	else {
@@ -2197,8 +2621,9 @@ iseq_set_sequence_stackcaching(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
 			  case SCS_XX:
 			    goto normal_insn;
 			  default:
-			    rb_compile_error(RSTRING_PTR(iseq->location.path), iobj->line_no,
-					     "unreachable");
+			    COMPILE_ERROR(ruby_sourcefile_string, iobj->line_no,
+					  "unreachable");
+			    return COMPILE_NG;
 			}
 			/* remove useless pop */
 			REMOVE_ELEM(list);
@@ -2233,20 +2658,27 @@ compile_dstr_fragments(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE *node, int *cntp)
 {
     NODE *list = node->nd_next;
     VALUE lit = node->nd_lit;
+    LINK_ELEMENT *first_lit = 0;
     int cnt = 0;
 
     debugp_param("nd_lit", lit);
     if (!NIL_P(lit)) {
-	hide_obj(lit);
 	cnt++;
+	if (!RB_TYPE_P(lit, T_STRING)) {
+	    rb_compile_bug_str(ERROR_ARGS "dstr: must be string: %s",
+			       rb_builtin_type_name(TYPE(lit)));
+	}
+	lit = node->nd_lit = rb_fstring(lit);
 	ADD_INSN1(ret, nd_line(node), putobject, lit);
+	if (RSTRING_LEN(lit) == 0) first_lit = LAST_ELEMENT(ret);
     }
 
     while (list) {
 	node = list->nd_head;
 	if (nd_type(node) == NODE_STR) {
-	    hide_obj(node->nd_lit);
+	    node->nd_lit = rb_fstring(node->nd_lit);
 	    ADD_INSN1(ret, nd_line(node), putobject, node->nd_lit);
+	    lit = Qnil;
 	}
 	else {
 	    COMPILE(ret, "each string", node);
@@ -2254,6 +2686,10 @@ compile_dstr_fragments(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE *node, int *cntp)
 	cnt++;
 	list = list->nd_next;
     }
+    if (NIL_P(lit) && first_lit) {
+	REMOVE_ELEM(first_lit);
+	--cnt;
+    }
     *cntp = cnt;
 
     return COMPILE_OK;
@@ -2322,6 +2758,52 @@ compile_branch_condition(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * cond,
     return COMPILE_OK;
 }
 
+static int
+compile_array_keyword_arg(rb_iseq_t *iseq, LINK_ANCHOR *ret, const NODE * const root_node, struct rb_call_info_kw_arg ** const kw_arg_ptr)
+{
+    if (kw_arg_ptr == NULL) return FALSE;
+
+    if (nd_type(root_node) == NODE_HASH && root_node->nd_head && nd_type(root_node->nd_head) == NODE_ARRAY) {
+	NODE *node = root_node->nd_head;
+
+	while (node) {
+	    NODE *key_node = node->nd_head;
+
+	    assert(nd_type(node) == NODE_ARRAY);
+	    if (key_node && nd_type(key_node) == NODE_LIT && RB_TYPE_P(key_node->nd_lit, T_SYMBOL)) {
+		/* can be keywords */
+	    }
+	    else {
+		return FALSE;
+	    }
+	    node = node->nd_next; /* skip value node */
+	    node = node->nd_next;
+	}
+
+	/* may be keywords */
+	node = root_node->nd_head;
+	{
+	    int len = (int)node->nd_alen / 2;
+	    struct rb_call_info_kw_arg *kw_arg  = (struct rb_call_info_kw_arg *)ruby_xmalloc(sizeof(struct rb_call_info_kw_arg) + sizeof(VALUE) * (len - 1));
+	    VALUE *keywords = kw_arg->keywords;
+	    int i = 0;
+	    kw_arg->keyword_len = len;
+
+	    *kw_arg_ptr = kw_arg;
+
+	    for (i=0; node != NULL; i++, node = node->nd_next->nd_next) {
+		NODE *key_node = node->nd_head;
+		NODE *val_node = node->nd_next->nd_head;
+		keywords[i] = key_node->nd_lit;
+		COMPILE(ret, "keyword values", val_node);
+	    }
+	    assert(i == len);
+	    return TRUE;
+	}
+    }
+    return FALSE;
+}
+
 enum compile_array_type_t {
     COMPILE_ARRAY_TYPE_ARRAY,
     COMPILE_ARRAY_TYPE_HASH,
@@ -2330,7 +2812,7 @@ enum compile_array_type_t {
 
 static int
 compile_array_(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE* node_root,
-	       enum compile_array_type_t type, int poped)
+	       enum compile_array_type_t type, struct rb_call_info_kw_arg **keywords_ptr, int poped)
 {
     NODE *node = node_root;
     int line = (int)nd_line(node);
@@ -2357,22 +2839,30 @@ compile_array_(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE* node_root,
 	    INIT_ANCHOR(anchor);
 
 	    for (i=0; i<max && node; i++, len++, node = node->nd_next) {
-		if (CPDEBUG > 0 && nd_type(node) != NODE_ARRAY) {
-		    rb_bug("compile_array: This node is not NODE_ARRAY, but %s", ruby_node_name(nd_type(node)));
+		if (CPDEBUG > 0) {
+		    EXPECT_NODE("compile_array", node, NODE_ARRAY);
 		}
 
-		if (type == COMPILE_ARRAY_TYPE_HASH && !node->nd_head) {
-		    opt_p = 0;
+		if (type != COMPILE_ARRAY_TYPE_ARRAY && !node->nd_head) {
 		    kw = node->nd_next;
-		    node = kw->nd_next;
-		    kw = kw->nd_head;
+		    node = 0;
+		    if (kw) {
+			opt_p = 0;
+			node = kw->nd_next;
+			kw = kw->nd_head;
+		    }
 		    break;
 		}
 		if (opt_p && nd_type(node->nd_head) != NODE_LIT) {
 		    opt_p = 0;
 		}
 
-		COMPILE_(anchor, "array element", node->nd_head, poped);
+		if (type == COMPILE_ARRAY_TYPE_ARGS && node->nd_next == NULL /* last node */ && compile_array_keyword_arg(iseq, anchor, node->nd_head, keywords_ptr)) {
+		    len--;
+		}
+		else {
+		    COMPILE_(anchor, "array element", node->nd_head, poped);
+		}
 	    }
 
 	    if (opt_p && type != COMPILE_ARRAY_TYPE_ARGS) {
@@ -2407,7 +2897,7 @@ compile_array_(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE* node_root,
 			else { /* COMPILE_ARRAY_TYPE_HASH */
 			    ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
 			    ADD_INSN1(ret, line, putobject, ary);
-			    ADD_SEND(ret, line, ID2SYM(id_core_hash_from_ary), INT2FIX(1));
+			    ADD_SEND(ret, line, id_core_hash_from_ary, INT2FIX(1));
 			}
 		    }
 		    else {
@@ -2418,7 +2908,7 @@ compile_array_(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE* node_root,
 			else {
 			    ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
 			    ADD_INSN1(ret, line, putobject, ary);
-			    ADD_SEND(ret, line, ID2SYM(id_core_hash_merge_ary), INT2FIX(1));
+			    ADD_SEND(ret, line, id_core_hash_merge_ary, INT2FIX(1));
 			}
 		    }
 		}
@@ -2439,23 +2929,27 @@ compile_array_(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE* node_root,
 			APPEND_LIST(ret, anchor);
 			break;
 		      case COMPILE_ARRAY_TYPE_HASH:
-			if (first) {
-			    first = 0;
-			    ADD_INSN1(anchor, line, newhash, INT2FIX(i));
-			    APPEND_LIST(ret, anchor);
-			}
-			else if (i > 0) {
-			    ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
-			    ADD_INSN(ret, line, swap);
-			    APPEND_LIST(ret, anchor);
-			    ADD_SEND(ret, line, ID2SYM(id_core_hash_merge_ptr), INT2FIX(i + 1));
+			if (i > 0) {
+			    if (first) {
+				ADD_INSN1(anchor, line, newhash, INT2FIX(i));
+				APPEND_LIST(ret, anchor);
+			    }
+			    else {
+				ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
+				ADD_INSN(ret, line, swap);
+				APPEND_LIST(ret, anchor);
+				ADD_SEND(ret, line, id_core_hash_merge_ptr, INT2FIX(i + 1));
+			    }
 			}
 			if (kw) {
+			    VALUE nhash = (i > 0 || !first) ? INT2FIX(2) : INT2FIX(1);
 			    ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
-			    ADD_INSN(ret, line, swap);
+			    if (i > 0 || !first) ADD_INSN(ret, line, swap);
 			    COMPILE(ret, "keyword splat", kw);
-			    ADD_SEND(ret, line, ID2SYM(id_core_hash_merge_kwd), INT2FIX(2));
+			    ADD_SEND(ret, line, id_core_hash_merge_kwd, nhash);
+			    if (nhash == INT2FIX(1)) ADD_SEND(ret, line, rb_intern("dup"), INT2FIX(0));
 			}
+			first = 0;
 			break;
 		      case COMPILE_ARRAY_TYPE_ARGS:
 			APPEND_LIST(ret, anchor);
@@ -2475,7 +2969,7 @@ compile_array_(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE* node_root,
 static VALUE
 compile_array(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE* node_root, enum compile_array_type_t type)
 {
-    return compile_array_(iseq, ret, node_root, type, 0);
+    return compile_array_(iseq, ret, node_root, type, NULL, 0);
 }
 
 static VALUE
@@ -2494,8 +2988,14 @@ case_when_optimizable_literal(NODE * node)
 	}
 	break;
       }
+      case NODE_NIL:
+	return Qnil;
+      case NODE_TRUE:
+	return Qtrue;
+      case NODE_FALSE:
+	return Qfalse;
       case NODE_STR:
-	return node->nd_lit;
+	return node->nd_lit = rb_fstring(node->nd_lit);
     }
     return Qundef;
 }
@@ -2512,7 +3012,8 @@ when_vals(rb_iseq_t *iseq, LINK_ANCHOR *cond_seq, NODE *vals, LABEL *l1, int onl
 	}
 	else {
 	    if (rb_hash_lookup(literals, lit) != Qnil) {
-		rb_compile_warning(RSTRING_PTR(iseq->location.path), nd_line(val), "duplicated when clause is ignored");
+		rb_compile_warning(ruby_sourcefile, nd_line(val),
+				   "duplicated when clause is ignored");
 	    }
 	    else {
 		rb_hash_aset(literals, lit, (VALUE)(l1) | 1);
@@ -2522,8 +3023,8 @@ when_vals(rb_iseq_t *iseq, LINK_ANCHOR *cond_seq, NODE *vals, LABEL *l1, int onl
 	ADD_INSN(cond_seq, nd_line(val), dup); /* dup target */
 
 	if (nd_type(val) == NODE_STR) {
+	    val->nd_lit = rb_fstring(val->nd_lit);
 	    debugp_param("nd_lit", val->nd_lit);
-	    OBJ_FREEZE(val->nd_lit);
 	    ADD_INSN1(cond_seq, nd_line(val), putobject, val->nd_lit);
 	}
 	else {
@@ -2543,21 +3044,24 @@ compile_massign_lhs(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE *node)
     switch (nd_type(node)) {
       case NODE_ATTRASGN: {
 	INSN *iobj;
-	rb_call_info_t *ci;
+	struct rb_call_info *ci;
 	VALUE dupidx;
+	int line = nd_line(node);
 
 	COMPILE_POPED(ret, "masgn lhs (NODE_ATTRASGN)", node);
 
-	POP_ELEMENT(ret);        /* pop pop insn */
-	iobj = (INSN *)POP_ELEMENT(ret); /* pop send insn */
-	ci = (rb_call_info_t *)iobj->operands[0];
-	ci->orig_argc += 1; ci->argc = ci->orig_argc;
+	iobj = (INSN *)get_prev_insn((INSN *)LAST_ELEMENT(ret)); /* send insn */
+	ci = (struct rb_call_info *)iobj->operands[0];
+	ci->orig_argc += 1;
 	dupidx = INT2FIX(ci->orig_argc);
 
-	ADD_INSN1(ret, nd_line(node), topn, dupidx);
-	ADD_ELEM(ret, (LINK_ELEMENT *)iobj);
-	ADD_INSN(ret, nd_line(node), pop);	/* result */
-	ADD_INSN(ret, nd_line(node), pop);	/* rhs    */
+	INSERT_BEFORE_INSN1(iobj, line, topn, dupidx);
+	if (ci->flag & VM_CALL_ARGS_SPLAT) {
+	    --ci->orig_argc;
+	    INSERT_BEFORE_INSN1(iobj, line, newarray, INT2FIX(1));
+	    INSERT_BEFORE_INSN(iobj, line, concatarray);
+	}
+	ADD_INSN(ret, line, pop);	/* result */
 	break;
       }
       case NODE_MASGN: {
@@ -2654,6 +3158,17 @@ compile_massign_opt(rb_iseq_t *iseq, LINK_ANCHOR *ret,
     return 1;
 }
 
+static void
+adjust_stack(rb_iseq_t *iseq, LINK_ANCHOR *ret, int line, int rlen, int llen)
+{
+    if (rlen < llen) {
+	do {ADD_INSN(ret, line, putnil);} while (++rlen < llen);
+    }
+    else if (rlen > llen) {
+	do {ADD_INSN(ret, line, pop);} while (--rlen > llen);
+    }
+}
+
 static int
 compile_massign(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE *node, int poped)
 {
@@ -2664,6 +3179,7 @@ compile_massign(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE *node, int poped)
 
     if (!poped || splatn || !compile_massign_opt(iseq, ret, rhsn, lhsn)) {
 	int llen = 0;
+	int expand = 1;
 	DECL_ANCHOR(lhsseq);
 
 	INIT_ANCHOR(lhsseq);
@@ -2679,9 +3195,35 @@ compile_massign(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE *node, int poped)
 	if (!poped) {
 	    ADD_INSN(ret, nd_line(node), dup);
 	}
-
-	ADD_INSN2(ret, nd_line(node), expandarray,
-		  INT2FIX(llen), INT2FIX(lhs_splat));
+	else if (!lhs_splat) {
+	    INSN *last = (INSN*)ret->last;
+	    if (last->link.type == ISEQ_ELEMENT_INSN &&
+		last->insn_id == BIN(newarray) &&
+		last->operand_size == 1) {
+		int rlen = FIX2INT(OPERAND_AT(last, 0));
+		/* special case: assign to aset or attrset */
+		if (llen == 2) {
+		    POP_ELEMENT(ret);
+		    adjust_stack(iseq, ret, nd_line(node), rlen, llen);
+		    ADD_INSN(ret, nd_line(node), swap);
+		    expand = 0;
+		}
+		else if (llen > 2 && llen != rlen) {
+		    POP_ELEMENT(ret);
+		    adjust_stack(iseq, ret, nd_line(node), rlen, llen);
+		    ADD_INSN1(ret, nd_line(node), reverse, INT2FIX(llen));
+		    expand = 0;
+		}
+		else if (llen > 2) {
+		    last->insn_id = BIN(reverse);
+		    expand = 0;
+		}
+	    }
+	}
+	if (expand) {
+	    ADD_INSN2(ret, nd_line(node), expandarray,
+		      INT2FIX(llen), INT2FIX(lhs_splat));
+	}
 	ADD_SEQ(ret, lhsseq);
 
 	if (lhs_splat) {
@@ -2760,6 +3302,8 @@ compile_cpath(LINK_ANCHOR *ret, rb_iseq_t *iseq, NODE *cpath)
     }
 }
 
+#define private_recv_p(node) (nd_type((node)->nd_recv) == NODE_SELF)
+
 #define defined_expr defined_expr0
 static int
 defined_expr(rb_iseq_t *iseq, LINK_ANCHOR *ret,
@@ -2863,17 +3407,10 @@ defined_expr(rb_iseq_t *iseq, LINK_ANCHOR *ret,
       case NODE_VCALL:
       case NODE_FCALL:
       case NODE_ATTRASGN:{
-	int self = TRUE;
+	const int explicit_receiver =
+	    (type == NODE_CALL ||
+	     (type == NODE_ATTRASGN && !private_recv_p(node)));
 
-	switch (type) {
-	  case NODE_ATTRASGN:
-	    if (node->nd_recv == (NODE *)1) break;
-	  case NODE_CALL:
-	    self = FALSE;
-	    break;
-	  default:
-	    /* through */;
-	}
 	if (!lfinish[1]) {
 	    lfinish[1] = NEW_LABEL(nd_line(node));
 	}
@@ -2881,7 +3418,7 @@ defined_expr(rb_iseq_t *iseq, LINK_ANCHOR *ret,
 	    defined_expr(iseq, ret, node->nd_args, lfinish, Qfalse);
 	    ADD_INSNL(ret, nd_line(node), branchunless, lfinish[1]);
 	}
-	if (!self) {
+	if (explicit_receiver) {
 	    defined_expr(iseq, ret, node->nd_recv, lfinish, Qfalse);
 	    ADD_INSNL(ret, nd_line(node), branchunless, lfinish[1]);
 	    COMPILE(ret, "defined/recv", node->nd_recv);
@@ -2958,11 +3495,13 @@ defined_expr(rb_iseq_t *iseq, LINK_ANCHOR *ret,
 	int line = nd_line(node);
 	LABEL *lstart = NEW_LABEL(line);
 	LABEL *lend = NEW_LABEL(line);
-	VALUE rescue = NEW_CHILD_ISEQVAL(NEW_NIL(),
-					 rb_str_concat(rb_str_new2
-						       ("defined guard in "),
-						       iseq->location.label),
-					 ISEQ_TYPE_DEFINED_GUARD, 0);
+	const rb_iseq_t *rescue = NEW_CHILD_ISEQ(NEW_NIL(),
+						 rb_str_concat(rb_str_new2
+							       ("defined guard in "),
+							       iseq->body->location.label),
+						 ISEQ_TYPE_DEFINED_GUARD, 0);
+	lstart->rescued = LABEL_RESCUE_BEG;
+	lend->rescued = LABEL_RESCUE_END;
 	APPEND_LABEL(ret, lcur, lstart);
 	ADD_LABEL(ret, lend);
 	ADD_CATCH_ENTRY(CATCH_TYPE_RESCUE, lstart, lend, rescue, lfinish[1]);
@@ -2970,28 +3509,26 @@ defined_expr(rb_iseq_t *iseq, LINK_ANCHOR *ret,
     return done;
 }
 
-#define BUFSIZE 0x100
-
 static VALUE
-make_name_for_block(rb_iseq_t *iseq)
+make_name_for_block(const rb_iseq_t *orig_iseq)
 {
     int level = 1;
-    rb_iseq_t *ip = iseq;
+    const rb_iseq_t *iseq = orig_iseq;
 
-    if (iseq->parent_iseq != 0) {
-	while (ip->local_iseq != ip) {
-	    if (ip->type == ISEQ_TYPE_BLOCK) {
+    if (orig_iseq->body->parent_iseq != 0) {
+	while (orig_iseq->body->local_iseq != iseq) {
+	    if (iseq->body->type == ISEQ_TYPE_BLOCK) {
 		level++;
 	    }
-	    ip = ip->parent_iseq;
+	    iseq = iseq->body->parent_iseq;
 	}
     }
 
     if (level == 1) {
-	return rb_sprintf("block in %s", RSTRING_PTR(ip->location.label));
+	return rb_sprintf("block in %"PRIsVALUE, iseq->body->location.label);
     }
     else {
-	return rb_sprintf("block (%d levels) in %s", level, RSTRING_PTR(ip->location.label));
+	return rb_sprintf("block (%d levels) in %"PRIsVALUE, level, iseq->body->location.label);
     }
 }
 
@@ -3001,9 +3538,9 @@ push_ensure_entry(rb_iseq_t *iseq,
 		  struct ensure_range *er, NODE *node)
 {
     enl->ensure_node = node;
-    enl->prev = iseq->compile_data->ensure_node_stack;	/* prev */
+    enl->prev = ISEQ_COMPILE_DATA(iseq)->ensure_node_stack;	/* prev */
     enl->erange = er;
-    iseq->compile_data->ensure_node_stack = enl;
+    ISEQ_COMPILE_DATA(iseq)->ensure_node_stack = enl;
 }
 
 static void
@@ -3028,7 +3565,7 @@ static void
 add_ensure_iseq(LINK_ANCHOR *ret, rb_iseq_t *iseq, int is_return)
 {
     struct iseq_compile_data_ensure_node_stack *enlp =
-	iseq->compile_data->ensure_node_stack;
+	ISEQ_COMPILE_DATA(iseq)->ensure_node_stack;
     struct iseq_compile_data_ensure_node_stack *prev_enlp = enlp;
     DECL_ANCHOR(ensure);
 
@@ -3042,7 +3579,7 @@ add_ensure_iseq(LINK_ANCHOR *ret, rb_iseq_t *iseq, int is_return)
 
 	    add_ensure_range(iseq, enlp->erange, lstart, lend);
 
-	    iseq->compile_data->ensure_node_stack = enlp->prev;
+	    ISEQ_COMPILE_DATA(iseq)->ensure_node_stack = enlp->prev;
 	    ADD_LABEL(ensure_part, lstart);
 	    COMPILE_POPED(ensure_part, "ensure part", enlp->ensure_node);
 	    ADD_LABEL(ensure_part, lend);
@@ -3055,12 +3592,12 @@ add_ensure_iseq(LINK_ANCHOR *ret, rb_iseq_t *iseq, int is_return)
 	}
 	enlp = enlp->prev;
     }
-    iseq->compile_data->ensure_node_stack = prev_enlp;
+    ISEQ_COMPILE_DATA(iseq)->ensure_node_stack = prev_enlp;
     ADD_SEQ(ret, ensure);
 }
 
 static VALUE
-setup_args(rb_iseq_t *iseq, LINK_ANCHOR *args, NODE *argn, VALUE *flag)
+setup_args(rb_iseq_t *iseq, LINK_ANCHOR *args, NODE *argn, unsigned int *flag, struct rb_call_info_kw_arg **keywords)
 {
     VALUE argc = INT2FIX(0);
     int nsplat = 0;
@@ -3080,6 +3617,7 @@ setup_args(rb_iseq_t *iseq, LINK_ANCHOR *args, NODE *argn, VALUE *flag)
 	switch (nd_type(argn)) {
 	  case NODE_SPLAT: {
 	    COMPILE(args, "args (splat)", argn->nd_head);
+	    ADD_INSN1(args, nd_line(argn), splatarray, nsplat ? Qtrue : Qfalse);
 	    argc = INT2FIX(1);
 	    nsplat++;
 	    *flag |= VM_CALL_ARGS_SPLAT;
@@ -3092,16 +3630,11 @@ setup_args(rb_iseq_t *iseq, LINK_ANCHOR *args, NODE *argn, VALUE *flag)
 
 	    INIT_ANCHOR(tmp);
 	    COMPILE(tmp, "args (cat: splat)", argn->nd_body);
-	    if (next_is_array && nsplat == 0) {
-		/* none */
+	    if (nd_type(argn) == NODE_ARGSCAT) {
+		ADD_INSN1(tmp, nd_line(argn), splatarray, nsplat ? Qtrue : Qfalse);
 	    }
 	    else {
-		if (nd_type(argn) == NODE_ARGSCAT) {
-		    ADD_INSN1(tmp, nd_line(argn), splatarray, Qfalse);
-		}
-		else {
-		    ADD_INSN1(tmp, nd_line(argn), newarray, INT2FIX(1));
-		}
+		ADD_INSN1(tmp, nd_line(argn), newarray, INT2FIX(1));
 	    }
 	    INSERT_LIST(args_splat, tmp);
 	    nsplat++;
@@ -3116,12 +3649,13 @@ setup_args(rb_iseq_t *iseq, LINK_ANCHOR *args, NODE *argn, VALUE *flag)
 	    }
 	    break;
 	  }
-	  case NODE_ARRAY: {
-	    argc = INT2FIX(compile_array(iseq, args, argn, COMPILE_ARRAY_TYPE_ARGS));
-	    break;
-	  }
+	  case NODE_ARRAY:
+	    {
+		argc = INT2FIX(compile_array_(iseq, args, argn, COMPILE_ARRAY_TYPE_ARGS, keywords, FALSE));
+		break;
+	    }
 	  default: {
-	    rb_bug("setup_arg: unknown node: %s\n", ruby_node_name(nd_type(argn)));
+	    UNKNOWN_NODE("setup_arg", argn);
 	  }
 	}
     }
@@ -3143,6 +3677,18 @@ setup_args(rb_iseq_t *iseq, LINK_ANCHOR *args, NODE *argn, VALUE *flag)
     return argc;
 }
 
+static VALUE
+build_postexe_iseq(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE *body)
+{
+    int line = nd_line(body);
+    VALUE argc = INT2FIX(0);
+    const rb_iseq_t *block = NEW_CHILD_ISEQ(body, make_name_for_block(iseq->body->parent_iseq), ISEQ_TYPE_BLOCK, line);
+
+    ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
+    ADD_CALL_WITH_BLOCK(ret, line, id_core_set_postexe, argc, block);
+    iseq_set_local_table(iseq, 0);
+    return Qnil;
+}
 
 /**
   compile each node
@@ -3155,25 +3701,34 @@ static int
 iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 {
     enum node_type type;
+    LINK_ELEMENT *saved_last_element = 0;
     int line;
 
     if (node == 0) {
 	if (!poped) {
 	    debugs("node: NODE_NIL(implicit)\n");
-	    ADD_INSN(ret, iseq->compile_data->last_line, putnil);
+	    ADD_INSN(ret, ISEQ_COMPILE_DATA(iseq)->last_line, putnil);
 	}
 	return COMPILE_OK;
     }
 
-    iseq->compile_data->last_line = line = (int)nd_line(node);
+    line = (int)nd_line(node);
+
+    if (ISEQ_COMPILE_DATA(iseq)->last_line == line) {
+	/* ignore */
+    }
+    else {
+	if (node->flags & NODE_FL_NEWLINE) {
+	    ISEQ_COMPILE_DATA(iseq)->last_line = line;
+	    ADD_TRACE(ret, line, RUBY_EVENT_LINE);
+	    saved_last_element = ret->last;
+	}
+    }
+
     debug_node_start(node);
 
     type = nd_type(node);
 
-    if (node->flags & NODE_FL_NEWLINE) {
-	ADD_TRACE(ret, line, RUBY_EVENT_LINE);
-    }
-
     switch (type) {
       case NODE_BLOCK:{
 	while (node && nd_type(node) == NODE_BLOCK) {
@@ -3231,7 +3786,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	INIT_ANCHOR(body_seq);
 	INIT_ANCHOR(cond_seq);
 
-	RHASH_TBL(literals)->type = &cdhash_type;
+	rb_hash_tbl_raw(literals)->type = &cdhash_type;
 
 	if (node->nd_head == 0) {
 	    COMPILE_(ret, "when", node->nd_body, poped);
@@ -3244,7 +3799,9 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	line = nd_line(node);
 
 	if (type != NODE_WHEN) {
-	    COMPILE_ERROR((ERROR_ARGS "NODE_CASE: unexpected node. must be NODE_WHEN, but %s", ruby_node_name(type)));
+	    COMPILE_ERROR(ERROR_ARGS "NODE_CASE: unexpected node. must be NODE_WHEN, but %s", ruby_node_name(type));
+	    debug_node_end();
+	    return COMPILE_NG;
 	}
 
 	endlabel = NEW_LABEL(line);
@@ -3277,12 +3834,11 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 		    ADD_INSNL(cond_seq, nd_line(vals), branchif, l1);
 		    break;
 		  default:
-		    rb_bug("NODE_CASE: unknown node (%s)",
-			   ruby_node_name(nd_type(vals)));
+		    UNKNOWN_NODE("NODE_CASE", vals);
 		}
 	    }
 	    else {
-		rb_bug("NODE_CASE: must be NODE_ARRAY, but 0");
+		EXPECT_NODE_NONULL("NODE_CASE", node, NODE_ARRAY);
 	    }
 
 	    node = node->nd_next;
@@ -3314,6 +3870,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 
 	    ADD_INSN(ret, nd_line(tempnode), dup);
 	    ADD_INSN2(ret, nd_line(tempnode), opt_case_dispatch, literals, elselabel);
+	    LABEL_REF(elselabel);
 	}
 
 	ADD_SEQ(ret, cond_seq);
@@ -3339,7 +3896,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 
 	    vals = node->nd_head;
 	    if (!vals) {
-		rb_bug("NODE_WHEN: must be NODE_ARRAY, but 0");
+		rb_compile_bug_str(ERROR_ARGS "NODE_WHEN: must be NODE_ARRAY, but 0");
 	    }
 	    switch (nd_type(vals)) {
 	      case NODE_ARRAY:
@@ -3359,8 +3916,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 		ADD_INSNL(ret, nd_line(vals), branchif, l1);
 		break;
 	      default:
-		rb_bug("NODE_WHEN: unknown node (%s)",
-		       ruby_node_name(nd_type(vals)));
+		UNKNOWN_NODE("NODE_WHEN", vals);
 	    }
 	    node = node->nd_next;
 	}
@@ -3376,22 +3932,23 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
       case NODE_OPT_N:
       case NODE_WHILE:
       case NODE_UNTIL:{
-	LABEL *prev_start_label = iseq->compile_data->start_label;
-	LABEL *prev_end_label = iseq->compile_data->end_label;
-	LABEL *prev_redo_label = iseq->compile_data->redo_label;
-	int prev_loopval_popped = iseq->compile_data->loopval_popped;
+	LABEL *prev_start_label = ISEQ_COMPILE_DATA(iseq)->start_label;
+	LABEL *prev_end_label = ISEQ_COMPILE_DATA(iseq)->end_label;
+	LABEL *prev_redo_label = ISEQ_COMPILE_DATA(iseq)->redo_label;
+	int prev_loopval_popped = ISEQ_COMPILE_DATA(iseq)->loopval_popped;
 
 	struct iseq_compile_data_ensure_node_stack enl;
 
-	LABEL *next_label = iseq->compile_data->start_label = NEW_LABEL(line);	/* next  */
-	LABEL *redo_label = iseq->compile_data->redo_label = NEW_LABEL(line);	/* redo  */
-	LABEL *break_label = iseq->compile_data->end_label = NEW_LABEL(line);	/* break */
+	LABEL *next_label = ISEQ_COMPILE_DATA(iseq)->start_label = NEW_LABEL(line);	/* next  */
+	LABEL *redo_label = ISEQ_COMPILE_DATA(iseq)->redo_label = NEW_LABEL(line);	/* redo  */
+	LABEL *break_label = ISEQ_COMPILE_DATA(iseq)->end_label = NEW_LABEL(line);	/* break */
 	LABEL *end_label = NEW_LABEL(line);
+	LABEL *adjust_label = NEW_LABEL(line);
 
 	LABEL *next_catch_label = NEW_LABEL(line);
 	LABEL *tmp_label = NULL;
 
-	iseq->compile_data->loopval_popped = 0;
+	ISEQ_COMPILE_DATA(iseq)->loopval_popped = 0;
 	push_ensure_entry(iseq, &enl, 0, 0);
 
 	if (type == NODE_OPT_N || node->nd_state == 1) {
@@ -3401,6 +3958,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    tmp_label = NEW_LABEL(line);
 	    ADD_INSNL(ret, line, jump, tmp_label);
 	}
+	ADD_LABEL(ret, adjust_label);
 	ADD_INSN(ret, line, putnil);
 	ADD_LABEL(ret, next_catch_label);
 	ADD_INSN(ret, line, pop);
@@ -3416,22 +3974,23 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 				     redo_label, end_label);
 	}
 	else if (type == NODE_UNTIL) {
-	    /* untile */
+	    /* until */
 	    compile_branch_condition(iseq, ret, node->nd_cond,
 				     end_label, redo_label);
 	}
 	else {
 	    ADD_CALL_RECEIVER(ret, line);
-	    ADD_CALL(ret, line, ID2SYM(idGets), INT2FIX(0));
+	    ADD_CALL(ret, line, idGets, INT2FIX(0));
 	    ADD_INSNL(ret, line, branchif, redo_label);
 	    /* opt_n */
 	}
 
 	ADD_LABEL(ret, end_label);
+	ADD_ADJUST_RESTORE(ret, adjust_label);
 
 	if (node->nd_state == Qundef) {
 	    /* ADD_INSN(ret, line, putundef); */
-	    rb_bug("unsupported: putundef");
+	    rb_compile_bug_str(ERROR_ARGS "unsupported: putundef");
 	}
 	else {
 	    ADD_INSN(ret, line, putnil);
@@ -3448,18 +4007,44 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	ADD_CATCH_ENTRY(CATCH_TYPE_NEXT, redo_label, break_label, 0,
 			next_catch_label);
 	ADD_CATCH_ENTRY(CATCH_TYPE_REDO, redo_label, break_label, 0,
-			iseq->compile_data->redo_label);
+			ISEQ_COMPILE_DATA(iseq)->redo_label);
 
-	iseq->compile_data->start_label = prev_start_label;
-	iseq->compile_data->end_label = prev_end_label;
-	iseq->compile_data->redo_label = prev_redo_label;
-	iseq->compile_data->loopval_popped = prev_loopval_popped;
-	iseq->compile_data->ensure_node_stack = iseq->compile_data->ensure_node_stack->prev;
+	ISEQ_COMPILE_DATA(iseq)->start_label = prev_start_label;
+	ISEQ_COMPILE_DATA(iseq)->end_label = prev_end_label;
+	ISEQ_COMPILE_DATA(iseq)->redo_label = prev_redo_label;
+	ISEQ_COMPILE_DATA(iseq)->loopval_popped = prev_loopval_popped;
+	ISEQ_COMPILE_DATA(iseq)->ensure_node_stack = ISEQ_COMPILE_DATA(iseq)->ensure_node_stack->prev;
 	break;
       }
-      case NODE_ITER:
-      case NODE_FOR:{
-	VALUE prevblock = iseq->compile_data->current_block;
+      case NODE_FOR:
+	if (node->nd_var) {
+	    /* massign to var in "for"
+	     * args.length == 1 && Array === (tmp = args[0]) ? tmp : args
+	     */
+	    NODE *var = node->nd_var;
+	    LABEL *not_single = NEW_LABEL(nd_line(var));
+	    LABEL *not_ary = NEW_LABEL(nd_line(var));
+	    COMPILE(ret, "for var", var);
+	    ADD_INSN(ret, line, dup);
+	    ADD_CALL(ret, line, idLength, INT2FIX(0));
+	    ADD_INSN1(ret, line, putobject, INT2FIX(1));
+	    ADD_CALL(ret, line, idEq, INT2FIX(1));
+	    ADD_INSNL(ret, line, branchunless, not_single);
+	    ADD_INSN(ret, line, dup);
+	    ADD_INSN1(ret, line, putobject, INT2FIX(0));
+	    ADD_CALL(ret, line, idAREF, INT2FIX(1));
+	    ADD_INSN1(ret, line, putobject, rb_cArray);
+	    ADD_INSN1(ret, line, topn, INT2FIX(1));
+	    ADD_CALL(ret, line, idEqq, INT2FIX(1));
+	    ADD_INSNL(ret, line, branchunless, not_ary);
+	    ADD_INSN(ret, line, swap);
+	    ADD_LABEL(ret, not_ary);
+	    ADD_INSN(ret, line, pop);
+	    ADD_LABEL(ret, not_single);
+	    break;
+	}
+      case NODE_ITER:{
+	const rb_iseq_t *prevblock = ISEQ_COMPILE_DATA(iseq)->current_block;
 	LABEL *retry_label = NEW_LABEL(line);
 	LABEL *retry_end_l = NEW_LABEL(line);
 
@@ -3467,17 +4052,13 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	if (nd_type(node) == NODE_FOR) {
 	    COMPILE(ret, "iter caller (for)", node->nd_iter);
 
-	    iseq->compile_data->current_block =
-		NEW_CHILD_ISEQVAL(node->nd_body, make_name_for_block(iseq),
-				  ISEQ_TYPE_BLOCK, line);
-
-	    ADD_SEND_R(ret, line, ID2SYM(idEach), INT2FIX(0),
-		       iseq->compile_data->current_block, INT2FIX(0));
+	    ISEQ_COMPILE_DATA(iseq)->current_block = NEW_CHILD_ISEQ(node->nd_body, make_name_for_block(iseq),
+							       ISEQ_TYPE_BLOCK, line);
+	    ADD_SEND_WITH_BLOCK(ret, line, idEach, INT2FIX(0), ISEQ_COMPILE_DATA(iseq)->current_block);
 	}
 	else {
-	    iseq->compile_data->current_block =
-		NEW_CHILD_ISEQVAL(node->nd_body, make_name_for_block(iseq),
-				  ISEQ_TYPE_BLOCK, line);
+	    ISEQ_COMPILE_DATA(iseq)->current_block = NEW_CHILD_ISEQ(node->nd_body, make_name_for_block(iseq),
+							       ISEQ_TYPE_BLOCK, line);
 	    COMPILE(ret, "iter caller", node->nd_iter);
 	}
 	ADD_LABEL(ret, retry_end_l);
@@ -3486,7 +4067,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    ADD_INSN(ret, line, pop);
 	}
 
-	iseq->compile_data->current_block = prevblock;
+	ISEQ_COMPILE_DATA(iseq)->current_block = prevblock;
 
 	ADD_CATCH_ENTRY(CATCH_TYPE_BREAK, retry_label, retry_end_l, 0, retry_end_l);
 
@@ -3495,160 +4076,161 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
       case NODE_BREAK:{
 	unsigned long level = 0;
 
-	if (iseq->compile_data->redo_label != 0) {
+	if (ISEQ_COMPILE_DATA(iseq)->redo_label != 0) {
 	    /* while/until */
 	    LABEL *splabel = NEW_LABEL(0);
 	    ADD_LABEL(ret, splabel);
-	    ADD_ADJUST(ret, line, iseq->compile_data->redo_label);
-	    COMPILE_(ret, "break val (while/until)", node->nd_stts, iseq->compile_data->loopval_popped);
+	    ADD_ADJUST(ret, line, ISEQ_COMPILE_DATA(iseq)->redo_label);
+	    COMPILE_(ret, "break val (while/until)", node->nd_stts, ISEQ_COMPILE_DATA(iseq)->loopval_popped);
 	    add_ensure_iseq(ret, iseq, 0);
-	    ADD_INSNL(ret, line, jump, iseq->compile_data->end_label);
+	    ADD_INSNL(ret, line, jump, ISEQ_COMPILE_DATA(iseq)->end_label);
 	    ADD_ADJUST_RESTORE(ret, splabel);
 
 	    if (!poped) {
 		ADD_INSN(ret, line, putnil);
 	    }
 	}
-	else if (iseq->type == ISEQ_TYPE_BLOCK) {
+	else if (iseq->body->type == ISEQ_TYPE_BLOCK) {
 	  break_by_insn:
 	    /* escape from block */
 	    COMPILE(ret, "break val (block)", node->nd_stts);
-	    ADD_INSN1(ret, line, throw, INT2FIX(level | 0x02) /* TAG_BREAK */ );
+	    ADD_INSN1(ret, line, throw, INT2FIX(level | TAG_BREAK));
 	    if (poped) {
 		ADD_INSN(ret, line, pop);
 	    }
 	}
-	else if (iseq->type == ISEQ_TYPE_EVAL) {
+	else if (iseq->body->type == ISEQ_TYPE_EVAL) {
 	  break_in_eval:
-	    COMPILE_ERROR((ERROR_ARGS "Can't escape from eval with break"));
+	    COMPILE_ERROR(ERROR_ARGS "Can't escape from eval with break");
+	    debug_node_end();
+	    return COMPILE_NG;
 	}
 	else {
-	    rb_iseq_t *ip = iseq->parent_iseq;
+	    const rb_iseq_t *ip = iseq->body->parent_iseq;
+
 	    while (ip) {
-		if (!ip->compile_data) {
+		if (!ISEQ_COMPILE_DATA(ip)) {
 		    ip = 0;
 		    break;
 		}
 
 		level++;
-		if (ip->compile_data->redo_label != 0) {
-		    level = 0x8000;
-		    if (ip->compile_data->loopval_popped == 0) {
-			/* need value */
-			level |= 0x4000;
-		    }
+		if (ISEQ_COMPILE_DATA(ip)->redo_label != 0) {
+		    level = VM_THROW_NO_ESCAPE_FLAG;
 		    goto break_by_insn;
 		}
-		else if (ip->type == ISEQ_TYPE_BLOCK) {
-		    level <<= 16;
+		else if (ip->body->type == ISEQ_TYPE_BLOCK) {
+		    level <<= VM_THROW_LEVEL_SHIFT;
 		    goto break_by_insn;
 		}
-		else if (ip->type == ISEQ_TYPE_EVAL) {
+		else if (ip->body->type == ISEQ_TYPE_EVAL) {
 		    goto break_in_eval;
 		}
 
-		ip = ip->parent_iseq;
+		ip = ip->body->parent_iseq;
 	    }
-	    COMPILE_ERROR((ERROR_ARGS "Invalid break"));
+	    COMPILE_ERROR(ERROR_ARGS "Invalid break");
+	    debug_node_end();
+	    return COMPILE_NG;
 	}
 	break;
       }
       case NODE_NEXT:{
 	unsigned long level = 0;
 
-	if (iseq->compile_data->redo_label != 0) {
+	if (ISEQ_COMPILE_DATA(iseq)->redo_label != 0) {
 	    LABEL *splabel = NEW_LABEL(0);
 	    debugs("next in while loop\n");
 	    ADD_LABEL(ret, splabel);
 	    COMPILE(ret, "next val/valid syntax?", node->nd_stts);
 	    add_ensure_iseq(ret, iseq, 0);
-	    ADD_ADJUST(ret, line, iseq->compile_data->redo_label);
-	    ADD_INSNL(ret, line, jump, iseq->compile_data->start_label);
+	    ADD_ADJUST(ret, line, ISEQ_COMPILE_DATA(iseq)->redo_label);
+	    ADD_INSNL(ret, line, jump, ISEQ_COMPILE_DATA(iseq)->start_label);
 	    ADD_ADJUST_RESTORE(ret, splabel);
 	    if (!poped) {
 		ADD_INSN(ret, line, putnil);
 	    }
 	}
-	else if (iseq->compile_data->end_label) {
+	else if (ISEQ_COMPILE_DATA(iseq)->end_label) {
 	    LABEL *splabel = NEW_LABEL(0);
 	    debugs("next in block\n");
 	    ADD_LABEL(ret, splabel);
-	    ADD_ADJUST(ret, line, iseq->compile_data->start_label);
+	    ADD_ADJUST(ret, line, ISEQ_COMPILE_DATA(iseq)->start_label);
 	    COMPILE(ret, "next val", node->nd_stts);
 	    add_ensure_iseq(ret, iseq, 0);
-	    ADD_INSNL(ret, line, jump, iseq->compile_data->end_label);
+	    ADD_INSNL(ret, line, jump, ISEQ_COMPILE_DATA(iseq)->end_label);
 	    ADD_ADJUST_RESTORE(ret, splabel);
 
 	    if (!poped) {
 		ADD_INSN(ret, line, putnil);
 	    }
 	}
-	else if (iseq->type == ISEQ_TYPE_EVAL) {
+	else if (iseq->body->type == ISEQ_TYPE_EVAL) {
 	  next_in_eval:
-	    COMPILE_ERROR((ERROR_ARGS "Can't escape from eval with next"));
+	    COMPILE_ERROR(ERROR_ARGS "Can't escape from eval with next");
 	}
 	else {
-	    rb_iseq_t *ip;
-	    ip = iseq;
+	    const rb_iseq_t *ip = iseq;
+
 	    while (ip) {
-		if (!ip->compile_data) {
+		if (!ISEQ_COMPILE_DATA(ip)) {
 		    ip = 0;
 		    break;
 		}
 
-		level = 0x8000 | 0x4000;
-		if (ip->compile_data->redo_label != 0) {
+		level = VM_THROW_NO_ESCAPE_FLAG;
+		if (ISEQ_COMPILE_DATA(ip)->redo_label != 0) {
 		    /* while loop */
 		    break;
 		}
-		else if (ip->type == ISEQ_TYPE_BLOCK) {
+		else if (ip->body->type == ISEQ_TYPE_BLOCK) {
 		    break;
 		}
-		else if (ip->type == ISEQ_TYPE_EVAL) {
+		else if (ip->body->type == ISEQ_TYPE_EVAL) {
 		    goto next_in_eval;
 		}
 
-		ip = ip->parent_iseq;
+		ip = ip->body->parent_iseq;
 	    }
 	    if (ip != 0) {
 		COMPILE(ret, "next val", node->nd_stts);
-		ADD_INSN1(ret, line, throw, INT2FIX(level | 0x03) /* TAG_NEXT */ );
+		ADD_INSN1(ret, line, throw, INT2FIX(level | TAG_NEXT));
 
 		if (poped) {
 		    ADD_INSN(ret, line, pop);
 		}
 	    }
 	    else {
-		COMPILE_ERROR((ERROR_ARGS "Invalid next"));
+		COMPILE_ERROR(ERROR_ARGS "Invalid next");
 	    }
 	}
 	break;
       }
       case NODE_REDO:{
-	if (iseq->compile_data->redo_label) {
+	if (ISEQ_COMPILE_DATA(iseq)->redo_label) {
 	    LABEL *splabel = NEW_LABEL(0);
 	    debugs("redo in while");
 	    ADD_LABEL(ret, splabel);
-	    ADD_ADJUST(ret, line, iseq->compile_data->redo_label);
+	    ADD_ADJUST(ret, line, ISEQ_COMPILE_DATA(iseq)->redo_label);
 	    add_ensure_iseq(ret, iseq, 0);
-	    ADD_INSNL(ret, line, jump, iseq->compile_data->redo_label);
+	    ADD_INSNL(ret, line, jump, ISEQ_COMPILE_DATA(iseq)->redo_label);
 	    ADD_ADJUST_RESTORE(ret, splabel);
 	    if (!poped) {
 		ADD_INSN(ret, line, putnil);
 	    }
 	}
-	else if (iseq->type == ISEQ_TYPE_EVAL) {
+	else if (iseq->body->type == ISEQ_TYPE_EVAL) {
 	  redo_in_eval:
-	    COMPILE_ERROR((ERROR_ARGS "Can't escape from eval with redo"));
+	    COMPILE_ERROR(ERROR_ARGS "Can't escape from eval with redo");
 	}
-	else if (iseq->compile_data->start_label) {
+	else if (ISEQ_COMPILE_DATA(iseq)->start_label) {
 	    LABEL *splabel = NEW_LABEL(0);
 
 	    debugs("redo in block");
 	    ADD_LABEL(ret, splabel);
 	    add_ensure_iseq(ret, iseq, 0);
-	    ADD_ADJUST(ret, line, iseq->compile_data->start_label);
-	    ADD_INSNL(ret, line, jump, iseq->compile_data->start_label);
+	    ADD_ADJUST(ret, line, ISEQ_COMPILE_DATA(iseq)->start_label);
+	    ADD_INSNL(ret, line, jump, ISEQ_COMPILE_DATA(iseq)->start_label);
 	    ADD_ADJUST_RESTORE(ret, splabel);
 
 	    if (!poped) {
@@ -3656,53 +4238,52 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    }
 	}
 	else {
-	    rb_iseq_t *ip;
-	    unsigned long level;
-	    level = 0x8000 | 0x4000;
-	    ip = iseq;
+	    const rb_iseq_t *ip = iseq;
+	    const unsigned long level = VM_THROW_NO_ESCAPE_FLAG;
+
 	    while (ip) {
-		if (!ip->compile_data) {
+		if (!ISEQ_COMPILE_DATA(ip)) {
 		    ip = 0;
 		    break;
 		}
 
-		if (ip->compile_data->redo_label != 0) {
+		if (ISEQ_COMPILE_DATA(ip)->redo_label != 0) {
 		    break;
 		}
-		else if (ip->type == ISEQ_TYPE_BLOCK) {
+		else if (ip->body->type == ISEQ_TYPE_BLOCK) {
 		    break;
 		}
-		else if (ip->type == ISEQ_TYPE_EVAL) {
+		else if (ip->body->type == ISEQ_TYPE_EVAL) {
 		    goto redo_in_eval;
 		}
 
-		ip = ip->parent_iseq;
+		ip = ip->body->parent_iseq;
 	    }
 	    if (ip != 0) {
 		ADD_INSN(ret, line, putnil);
-		ADD_INSN1(ret, line, throw, INT2FIX(level | 0x05) /* TAG_REDO */ );
+		ADD_INSN1(ret, line, throw, INT2FIX(level | TAG_REDO));
 
 		if (poped) {
 		    ADD_INSN(ret, line, pop);
 		}
 	    }
 	    else {
-		COMPILE_ERROR((ERROR_ARGS "Invalid redo"));
+		COMPILE_ERROR(ERROR_ARGS "Invalid redo");
 	    }
 	}
 	break;
       }
       case NODE_RETRY:{
-	if (iseq->type == ISEQ_TYPE_RESCUE) {
+	if (iseq->body->type == ISEQ_TYPE_RESCUE) {
 	    ADD_INSN(ret, line, putnil);
-	    ADD_INSN1(ret, line, throw, INT2FIX(0x04) /* TAG_RETRY */ );
+	    ADD_INSN1(ret, line, throw, INT2FIX(TAG_RETRY));
 
 	    if (poped) {
 		ADD_INSN(ret, line, pop);
 	    }
 	}
 	else {
-	    COMPILE_ERROR((ERROR_ARGS "Invalid retry"));
+	    COMPILE_ERROR(ERROR_ARGS "Invalid retry");
 	}
 	break;
       }
@@ -3714,11 +4295,12 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	LABEL *lstart = NEW_LABEL(line);
 	LABEL *lend = NEW_LABEL(line);
 	LABEL *lcont = NEW_LABEL(line);
-	VALUE rescue = NEW_CHILD_ISEQVAL(
-	    node->nd_resq,
-	    rb_str_concat(rb_str_new2("rescue in "), iseq->location.label),
-	    ISEQ_TYPE_RESCUE, line);
+	const rb_iseq_t *rescue = NEW_CHILD_ISEQ(node->nd_resq,
+						 rb_str_concat(rb_str_new2("rescue in "), iseq->body->location.label),
+						 ISEQ_TYPE_RESCUE, line);
 
+	lstart->rescued = LABEL_RESCUE_BEG;
+	lend->rescued = LABEL_RESCUE_END;
 	ADD_LABEL(ret, lstart);
 	COMPILE(ret, "rescue head", node->nd_head);
 	ADD_LABEL(ret, lend);
@@ -3768,8 +4350,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 		    ADD_INSNL(ret, line, branchif, label_hit);
 		    break;
 		  default:
-		    rb_bug("NODE_RESBODY: unknown node (%s)",
-			   ruby_node_name(nd_type(narg)));
+		    UNKNOWN_NODE("NODE_RESBODY", narg);
 		}
 	    }
 	    else {
@@ -3781,7 +4362,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    ADD_INSNL(ret, line, jump, label_miss);
 	    ADD_LABEL(ret, label_hit);
 	    COMPILE(ret, "resbody body", resq->nd_body);
-	    if (iseq->compile_data->option->tailcall_optimization) {
+	    if (ISEQ_COMPILE_DATA(iseq)->option->tailcall_optimization) {
 		ADD_INSN(ret, line, nop);
 	    }
 	    ADD_INSN(ret, line, leave);
@@ -3792,11 +4373,9 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
       }
       case NODE_ENSURE:{
 	DECL_ANCHOR(ensr);
-	VALUE ensure = NEW_CHILD_ISEQVAL(node->nd_ensr,
-					 rb_str_concat(rb_str_new2
-						       ("ensure in "),
-						       iseq->location.label),
-					 ISEQ_TYPE_ENSURE, line);
+	const rb_iseq_t *ensure = NEW_CHILD_ISEQ(node->nd_ensr,
+						 rb_str_concat(rb_str_new2 ("ensure in "), iseq->body->location.label),
+						 ISEQ_TYPE_ENSURE, line);
 	LABEL *lstart = NEW_LABEL(line);
 	LABEL *lend = NEW_LABEL(line);
 	LABEL *lcont = NEW_LABEL(line);
@@ -3823,14 +4402,14 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	}
 	ADD_LABEL(ret, lcont);
 
-	erange = iseq->compile_data->ensure_node_stack->erange;
+	erange = ISEQ_COMPILE_DATA(iseq)->ensure_node_stack->erange;
 	while (erange) {
 	    ADD_CATCH_ENTRY(CATCH_TYPE_ENSURE, erange->begin, erange->end,
 			    ensure, lcont);
 	    erange = erange->next;
 	}
 
-	iseq->compile_data->ensure_node_stack = enl.prev;
+	ISEQ_COMPILE_DATA(iseq)->ensure_node_stack = enl.prev;
 	break;
       }
 
@@ -3862,9 +4441,9 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 
       case NODE_LASGN:{
 	ID id = node->nd_vid;
-	int idx = iseq->local_iseq->local_size - get_local_var_idx(iseq, id);
+	int idx = iseq->body->local_iseq->body->local_size - get_local_var_idx(iseq, id);
 
-	debugs("lvar: %s idx: %d\n", rb_id2name(id), idx);
+	debugs("lvar: %"PRIsVALUE" idx: %d\n", rb_id2str(id), idx);
 	COMPILE(ret, "rvalue", node->nd_value);
 
 	if (!poped) {
@@ -3878,7 +4457,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
       case NODE_DASGN_CURR:{
 	int idx, lv, ls;
 	COMPILE(ret, "dvalue", node->nd_value);
-	debugp_param("dassn id", rb_str_new2(rb_id2name(node->nd_vid) ? rb_id2name(node->nd_vid) : "*"));
+	debugi("dassn id", rb_id2str(node->nd_vid) ? node->nd_vid : '*');
 
 	if (!poped) {
 	    ADD_INSN(ret, line, dup);
@@ -3887,7 +4466,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	idx = get_dyna_var_idx(iseq, node->nd_vid, &lv, &ls);
 
 	if (idx < 0) {
-	    rb_bug("NODE_DASGN(_CURR): unknown id (%s)", rb_id2name(node->nd_vid));
+	    rb_compile_bug_str(ERROR_ARGS "NODE_DASGN(_CURR): unknown id (%"PRIsVALUE")", rb_id2str(node->nd_vid));
 	}
 
 	ADD_INSN2(ret, line, setlocal, INT2FIX(ls - idx), INT2FIX(lv));
@@ -3910,7 +4489,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    ADD_INSN(ret, line, dup);
 	}
 	ADD_INSN2(ret, line, setinstancevariable,
-		  ID2SYM(node->nd_vid), INT2FIX(iseq->ic_size++));
+		  ID2SYM(node->nd_vid), INT2FIX(iseq->body->is_size++));
 	break;
       }
       case NODE_CDECL:{
@@ -3943,7 +4522,8 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
       case NODE_OP_ASGN1: {
 	DECL_ANCHOR(args);
 	VALUE argc;
-	VALUE flag = 0;
+	unsigned int flag = 0;
+	unsigned int asgnflag = 0;
 	ID id = node->nd_mid;
 	int boff = 0;
 
@@ -3973,7 +4553,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	if (!poped) {
 	    ADD_INSN(ret, line, putnil);
 	}
-	COMPILE(ret, "NODE_OP_ASGN1 recv", node->nd_recv);
+	asgnflag = COMPILE_RECV(ret, "NODE_OP_ASGN1 recv", node);
 	switch (nd_type(node->nd_args->nd_head)) {
 	  case NODE_ZARRAY:
 	    argc = INT2FIX(0);
@@ -3982,11 +4562,12 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    boff = 1;
 	  default:
 	    INIT_ANCHOR(args);
-	    argc = setup_args(iseq, args, node->nd_args->nd_head, &flag);
+	    argc = setup_args(iseq, args, node->nd_args->nd_head, &flag, NULL);
 	    ADD_SEQ(ret, args);
 	}
 	ADD_INSN1(ret, line, dupn, FIXNUM_INC(argc, 1 + boff));
-	ADD_SEND_R(ret, line, ID2SYM(idAREF), argc, Qfalse, LONG2FIX(flag));
+	ADD_SEND_WITH_FLAG(ret, line, idAREF, argc, INT2FIX(flag));
+	flag |= asgnflag;
 
 	if (id == 0 || id == 1) {
 	    /* 0: or, 1: and
@@ -4029,14 +4610,12 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 		    ADD_INSN(ret, line, pop);
 		    ADD_INSN(ret, line, pop);
 		}
-		ADD_SEND_R(ret, line, ID2SYM(idASET),
-			   argc, Qfalse, LONG2FIX(flag));
+		ADD_SEND_WITH_FLAG(ret, line, idASET, argc, INT2FIX(flag));
 	    }
 	    else {
 		if (boff > 0)
 		    ADD_INSN(ret, line, swap);
-		ADD_SEND_R(ret, line, ID2SYM(idASET),
-			   FIXNUM_INC(argc, 1), Qfalse, LONG2FIX(flag));
+		ADD_SEND_WITH_FLAG(ret, line, idASET, FIXNUM_INC(argc, 1), INT2FIX(flag));
 	    }
 	    ADD_INSN(ret, line, pop);
 	    ADD_INSNL(ret, line, jump, lfin);
@@ -4049,7 +4628,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	}
 	else {
 	    COMPILE(ret, "NODE_OP_ASGN1 args->body: ", node->nd_args->nd_body);
-	    ADD_SEND(ret, line, ID2SYM(id), INT2FIX(1));
+	    ADD_SEND(ret, line, id, INT2FIX(1));
 	    if (!poped) {
 		ADD_INSN1(ret, line, setn, FIXNUM_INC(argc, 2+boff));
 	    }
@@ -4066,14 +4645,12 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 		    ADD_INSN(ret, line, pop);
 		    ADD_INSN(ret, line, pop);
 		}
-		ADD_SEND_R(ret, line, ID2SYM(idASET),
-			   argc, Qfalse, LONG2FIX(flag));
+		ADD_SEND_WITH_FLAG(ret, line, idASET, argc, INT2FIX(flag));
 	    }
 	    else {
 		if (boff > 0)
 		    ADD_INSN(ret, line, swap);
-		ADD_SEND_R(ret, line, ID2SYM(idASET),
-			   FIXNUM_INC(argc, 1), Qfalse, LONG2FIX(flag));
+		ADD_SEND_WITH_FLAG(ret, line, idASET, FIXNUM_INC(argc, 1), INT2FIX(flag));
 	    }
 	    ADD_INSN(ret, line, pop);
 	}
@@ -4082,8 +4659,11 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
       }
       case NODE_OP_ASGN2:{
 	ID atype = node->nd_next->nd_mid;
+	ID vid = node->nd_next->nd_vid, aid = rb_id_attrset(vid);
+	VALUE asgnflag;
 	LABEL *lfin = NEW_LABEL(line);
 	LABEL *lcfin = NEW_LABEL(line);
+	LABEL *lskip = 0;
 	/*
 	  class C; attr_accessor :c; end
 	  r = C.new
@@ -4126,10 +4706,14 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 
 	*/
 
-	COMPILE(ret, "NODE_OP_ASGN2#recv", node->nd_recv);
+	asgnflag = COMPILE_RECV(ret, "NODE_OP_ASGN2#recv", node);
+	if (node->nd_next->nd_aid) {
+	    lskip = NEW_LABEL(line);
+	    ADD_INSN(ret, line, dup);
+	    ADD_INSNL(ret, line, branchnil, lskip);
+	}
 	ADD_INSN(ret, line, dup);
-	ADD_SEND(ret, line, ID2SYM(node->nd_next->nd_vid),
-		 INT2FIX(0));
+	ADD_SEND(ret, line, vid, INT2FIX(0));
 
 	if (atype == 0 || atype == 1) {	/* 0: OR or 1: AND */
 	    ADD_INSN(ret, line, dup);
@@ -4143,8 +4727,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    COMPILE(ret, "NODE_OP_ASGN2 val", node->nd_value);
 	    ADD_INSN(ret, line, swap);
 	    ADD_INSN1(ret, line, topn, INT2FIX(1));
-	    ADD_SEND(ret, line, ID2SYM(node->nd_next->nd_aid),
-		     INT2FIX(1));
+	    ADD_SEND_WITH_FLAG(ret, line, aid, INT2FIX(1), INT2FIX(asgnflag));
 	    ADD_INSNL(ret, line, jump, lfin);
 
 	    ADD_LABEL(ret, lcfin);
@@ -4152,6 +4735,9 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 
 	    ADD_LABEL(ret, lfin);
 	    ADD_INSN(ret, line, pop);
+	    if (lskip) {
+		ADD_LABEL(ret, lskip);
+	    }
 	    if (poped) {
 		/* we can apply more optimize */
 		ADD_INSN(ret, line, pop);
@@ -4159,15 +4745,16 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	}
 	else {
 	    COMPILE(ret, "NODE_OP_ASGN2 val", node->nd_value);
-	    ADD_SEND(ret, line, ID2SYM(node->nd_next->nd_mid),
-		     INT2FIX(1));
+	    ADD_SEND(ret, line, atype, INT2FIX(1));
 	    if (!poped) {
 		ADD_INSN(ret, line, swap);
 		ADD_INSN1(ret, line, topn, INT2FIX(1));
 	    }
-	    ADD_SEND(ret, line, ID2SYM(node->nd_next->nd_aid),
-		     INT2FIX(1));
+	    ADD_SEND_WITH_FLAG(ret, line, aid, INT2FIX(1), INT2FIX(asgnflag));
 	    ADD_INSN(ret, line, pop);
+	    if (lskip) {
+		ADD_LABEL(ret, lskip);
+	    }
 	}
 	break;
       }
@@ -4184,10 +4771,9 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    COMPILE(ret, "NODE_OP_CDECL/colon2#nd_head", node->nd_head->nd_head);
 	    break;
 	  default:
-	    do {
-		COMPILE_ERROR((ERROR_ARGS "%s: invalid node in NODE_OP_CDECL",
-			       ruby_node_name(nd_type(node->nd_head))));
-	    } while (0);
+	    COMPILE_ERROR(ERROR_ARGS "%s: invalid node in NODE_OP_CDECL",
+			  ruby_node_name(nd_type(node->nd_head)));
+	    debug_node_end();
 	    return COMPILE_NG;
 	}
 	mid = node->nd_head->nd_mid;
@@ -4228,7 +4814,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	else {
 	    COMPILE(ret, "NODE_OP_CDECL#nd_value", node->nd_value);
 	    /* cref obj value */
-	    ADD_CALL(ret, line, ID2SYM(node->nd_aid), INT2FIX(1));
+	    ADD_CALL(ret, line, node->nd_aid, INT2FIX(1));
 	    /* cref value */
 	    ADD_INSN(ret, line, swap); /* value cref */
 	    if (!poped) {
@@ -4281,6 +4867,41 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	break;
       }
       case NODE_CALL:
+	/* optimization shortcut
+	 *   "literal".freeze -> opt_str_freeze("literal")
+	 */
+	if (node->nd_recv && nd_type(node->nd_recv) == NODE_STR &&
+	    node->nd_mid == idFreeze && node->nd_args == NULL &&
+	    ISEQ_COMPILE_DATA(iseq)->current_block == NULL &&
+	    ISEQ_COMPILE_DATA(iseq)->option->specialized_instruction) {
+	    VALUE str = rb_fstring(node->nd_recv->nd_lit);
+	    iseq_add_mark_object(iseq, str);
+	    ADD_INSN1(ret, line, opt_str_freeze, str);
+	    if (poped) {
+		ADD_INSN(ret, line, pop);
+	    }
+	    break;
+	}
+	/* optimization shortcut
+	 *   obj["literal"] -> opt_aref_with(obj, "literal")
+	 */
+	if (node->nd_mid == idAREF && !private_recv_p(node) && node->nd_args &&
+	    nd_type(node->nd_args) == NODE_ARRAY && node->nd_args->nd_alen == 1 &&
+	    nd_type(node->nd_args->nd_head) == NODE_STR &&
+	    ISEQ_COMPILE_DATA(iseq)->current_block == NULL &&
+	    ISEQ_COMPILE_DATA(iseq)->option->specialized_instruction) {
+	    VALUE str = rb_fstring(node->nd_args->nd_head->nd_lit);
+	    node->nd_args->nd_head->nd_lit = str;
+	    COMPILE(ret, "recv", node->nd_recv);
+	    ADD_INSN3(ret, line, opt_aref_with,
+		      new_callinfo(iseq, idAREF, 1, 0, NULL, FALSE),
+		      NULL/* CALL_CACHE */, str);
+	    if (poped) {
+		ADD_INSN(ret, line, pop);
+	    }
+	    break;
+	}
+      case NODE_QCALL:
       case NODE_FCALL:
       case NODE_VCALL:{		/* VCALL: variable or call */
 	/*
@@ -4290,11 +4911,13 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	*/
 	DECL_ANCHOR(recv);
 	DECL_ANCHOR(args);
+	LABEL *lskip = 0;
 	ID mid = node->nd_mid;
 	VALUE argc;
-	VALUE flag = 0;
-	VALUE parent_block = iseq->compile_data->current_block;
-	iseq->compile_data->current_block = Qfalse;
+	unsigned int flag = 0;
+	struct rb_call_info_kw_arg *keywords = NULL;
+	const rb_iseq_t *parent_block = ISEQ_COMPILE_DATA(iseq)->current_block;
+	ISEQ_COMPILE_DATA(iseq)->current_block = NULL;
 
 	INIT_ANCHOR(recv);
 	INIT_ANCHOR(args);
@@ -4327,12 +4950,12 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 		(mid == goto_id || mid == label_id)) {
 		LABEL *label;
 		st_data_t data;
-		st_table *labels_table = iseq->compile_data->labels_table;
+		st_table *labels_table = ISEQ_COMPILE_DATA(iseq)->labels_table;
 		ID label_name;
 
 		if (!labels_table) {
 		    labels_table = st_init_numtable();
-		    iseq->compile_data->labels_table = labels_table;
+		    ISEQ_COMPILE_DATA(iseq)->labels_table = labels_table;
 		}
 		if (nd_type(node->nd_args->nd_head) == NODE_LIT &&
 		    SYMBOL_P(node->nd_args->nd_head->nd_lit)) {
@@ -4348,7 +4971,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 		    }
 		}
 		else {
-		    COMPILE_ERROR((ERROR_ARGS "invalid goto/label format"));
+		    COMPILE_ERROR(ERROR_ARGS "invalid goto/label format");
 		}
 
 
@@ -4363,8 +4986,13 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	}
 #endif
 	/* receiver */
-	if (type == NODE_CALL) {
+	if (type == NODE_CALL || type == NODE_QCALL) {
 	    COMPILE(recv, "recv", node->nd_recv);
+	    if (type == NODE_QCALL) {
+		lskip = NEW_LABEL(line);
+		ADD_INSN(recv, line, dup);
+		ADD_INSNL(recv, line, branchnil, lskip);
+	    }
 	}
 	else if (type == NODE_FCALL || type == NODE_VCALL) {
 	    ADD_CALL_RECEIVER(recv, line);
@@ -4372,7 +5000,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 
 	/* args */
 	if (nd_type(node) != NODE_VCALL) {
-	    argc = setup_args(iseq, args, node->nd_args, &flag);
+	    argc = setup_args(iseq, args, node->nd_args, &flag, &keywords);
 	}
 	else {
 	    argc = INT2FIX(0);
@@ -4392,9 +5020,11 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    flag |= VM_CALL_FCALL;
 	}
 
-	ADD_SEND_R(ret, line, ID2SYM(mid),
-		   argc, parent_block, LONG2FIX(flag));
+	ADD_SEND_R(ret, line, mid, argc, parent_block, INT2FIX(flag), keywords);
 
+	if (lskip) {
+	    ADD_LABEL(ret, lskip);
+	}
 	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
@@ -4404,93 +5034,107 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
       case NODE_ZSUPER:{
 	DECL_ANCHOR(args);
 	int argc;
-	VALUE flag = 0;
-	VALUE parent_block = iseq->compile_data->current_block;
+	unsigned int flag = 0;
+	struct rb_call_info_kw_arg *keywords = NULL;
+	const rb_iseq_t *parent_block = ISEQ_COMPILE_DATA(iseq)->current_block;
 
 	INIT_ANCHOR(args);
-	iseq->compile_data->current_block = Qfalse;
+	ISEQ_COMPILE_DATA(iseq)->current_block = NULL;
 	if (nd_type(node) == NODE_SUPER) {
-	    VALUE vargc = setup_args(iseq, args, node->nd_args, &flag);
+	    VALUE vargc = setup_args(iseq, args, node->nd_args, &flag, &keywords);
 	    argc = FIX2INT(vargc);
 	}
 	else {
 	    /* NODE_ZSUPER */
 	    int i;
-	    rb_iseq_t *liseq = iseq->local_iseq;
+	    const rb_iseq_t *liseq = iseq->body->local_iseq;
 	    int lvar_level = get_lvar_level(iseq);
 
-	    argc = liseq->argc;
+	    argc = liseq->body->param.lead_num;
 
 	    /* normal arguments */
-	    for (i = 0; i < liseq->argc; i++) {
-		int idx = liseq->local_size - i;
+	    for (i = 0; i < liseq->body->param.lead_num; i++) {
+		int idx = liseq->body->local_size - i;
 		ADD_INSN2(args, line, getlocal, INT2FIX(idx), INT2FIX(lvar_level));
 	    }
 
-	    if (!liseq->arg_simple) {
-		if (liseq->arg_opts) {
-		    /* optional arguments */
+	    if (liseq->body->param.flags.has_opt) {
+		/* optional arguments */
+		int j;
+		for (j = 0; j < liseq->body->param.opt_num; j++) {
+		    int idx = liseq->body->local_size - (i + j);
+		    ADD_INSN2(args, line, getlocal, INT2FIX(idx), INT2FIX(lvar_level));
+		}
+		i += j;
+		argc = i;
+	    }
+	    if (liseq->body->param.flags.has_rest) {
+		/* rest argument */
+		int idx = liseq->body->local_size - liseq->body->param.rest_start;
+		ADD_INSN2(args, line, getlocal, INT2FIX(idx), INT2FIX(lvar_level));
+		argc = liseq->body->param.rest_start + 1;
+		flag |= VM_CALL_ARGS_SPLAT;
+	    }
+	    if (liseq->body->param.flags.has_post) {
+		/* post arguments */
+		int post_len = liseq->body->param.post_num;
+		int post_start = liseq->body->param.post_start;
+
+		if (liseq->body->param.flags.has_rest) {
 		    int j;
-		    for (j = 0; j < liseq->arg_opts - 1; j++) {
-			int idx = liseq->local_size - (i + j);
+		    for (j=0; j<post_len; j++) {
+			int idx = liseq->body->local_size - (post_start + j);
 			ADD_INSN2(args, line, getlocal, INT2FIX(idx), INT2FIX(lvar_level));
 		    }
-		    i += j;
-		    argc = i;
+		    ADD_INSN1(args, line, newarray, INT2FIX(j));
+		    ADD_INSN (args, line, concatarray);
+		    /* argc is settled at above */
 		}
-
-		if (liseq->arg_rest != -1) {
-		    /* rest argument */
-		    int idx = liseq->local_size - liseq->arg_rest;
-		    ADD_INSN2(args, line, getlocal, INT2FIX(idx), INT2FIX(lvar_level));
-		    argc = liseq->arg_rest + 1;
-		    flag |= VM_CALL_ARGS_SPLAT;
+		else {
+		    int j;
+		    for (j=0; j<post_len; j++) {
+			int idx = liseq->body->local_size - (post_start + j);
+			ADD_INSN2(args, line, getlocal, INT2FIX(idx), INT2FIX(lvar_level));
+		    }
+		    argc = post_len + post_start;
 		}
+	    }
 
-		if (liseq->arg_post_len) {
-		    /* post arguments */
-		    int post_len = liseq->arg_post_len;
-		    int post_start = liseq->arg_post_start;
+	    if (liseq->body->param.flags.has_kw) { /* TODO: support keywords */
+		int local_size = liseq->body->local_size;
+		argc++;
 
-		    if (liseq->arg_rest != -1) {
-			int j;
-			for (j=0; j<post_len; j++) {
-			    int idx = liseq->local_size - (post_start + j);
-			    ADD_INSN2(args, line, getlocal, INT2FIX(idx), INT2FIX(lvar_level));
-			}
-			ADD_INSN1(args, line, newarray, INT2FIX(j));
-			ADD_INSN (args, line, concatarray);
-			/* argc is setteled at above */
-		    }
-		    else {
-			int j;
-			for (j=0; j<post_len; j++) {
-			    int idx = liseq->local_size - (post_start + j);
-			    ADD_INSN2(args, line, getlocal, INT2FIX(idx), INT2FIX(lvar_level));
-			}
-			argc = post_len + post_start;
-		    }
-		}
+		ADD_INSN1(args, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
 
-		if (liseq->arg_keyword >= 0) {
-		    int local_size = liseq->local_size;
-		    int idx = local_size - liseq->arg_keyword;
-		    argc++;
-		    ADD_INSN1(args, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
+		if (liseq->body->param.flags.has_kwrest) {
+		    ADD_INSN2(args, line, getlocal, INT2FIX(liseq->body->local_size - liseq->body->param.keyword->rest_start), INT2FIX(lvar_level));
+		    ADD_SEND (args, line, rb_intern("dup"), INT2FIX(0));
+		}
+		else {
+		    ADD_INSN1(args, line, newhash, INT2FIX(0));
+		}
+		for (i = 0; i < liseq->body->param.keyword->num; ++i) {
+		    ID id = liseq->body->param.keyword->table[i];
+		    int idx = local_size - get_local_var_idx(liseq, id);
+		    ADD_INSN1(args, line, putobject, ID2SYM(id));
 		    ADD_INSN2(args, line, getlocal, INT2FIX(idx), INT2FIX(lvar_level));
-		    ADD_SEND (args, line, ID2SYM(rb_intern("dup")), INT2FIX(0));
-		    for (i = 0; i < liseq->arg_keywords; ++i) {
-			ID id = liseq->arg_keyword_table[i];
-			idx = local_size - get_local_var_idx(liseq, id);
-			ADD_INSN1(args, line, putobject, ID2SYM(id));
-			ADD_INSN2(args, line, getlocal, INT2FIX(idx), INT2FIX(lvar_level));
-		    }
-		    ADD_SEND(args, line, ID2SYM(id_core_hash_merge_ptr), INT2FIX(i * 2 + 1));
-		    if (liseq->arg_rest != -1) {
-			ADD_INSN1(args, line, newarray, INT2FIX(1));
-			ADD_INSN (args, line, concatarray);
-			--argc;
-		    }
+		}
+		ADD_SEND(args, line, id_core_hash_merge_ptr, INT2FIX(i * 2 + 1));
+		if (liseq->body->param.flags.has_rest) {
+		    ADD_INSN1(args, line, newarray, INT2FIX(1));
+		    ADD_INSN (args, line, concatarray);
+		    --argc;
+		}
+	    }
+	    else if (liseq->body->param.flags.has_kwrest) {
+		ADD_INSN2(args, line, getlocal, INT2FIX(liseq->body->local_size - liseq->body->param.keyword->rest_start), INT2FIX(lvar_level));
+		ADD_SEND (args, line, rb_intern("dup"), INT2FIX(0));
+		if (liseq->body->param.flags.has_rest) {
+		    ADD_INSN1(args, line, newarray, INT2FIX(1));
+		    ADD_INSN (args, line, concatarray);
+		}
+		else {
+		    argc++;
 		}
 	    }
 	}
@@ -4498,8 +5142,10 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	/* dummy receiver */
 	ADD_INSN1(ret, line, putobject, nd_type(node) == NODE_ZSUPER ? Qfalse : Qtrue);
 	ADD_SEQ(ret, args);
-	ADD_INSN1(ret, line, invokesuper, new_callinfo(iseq, 0, argc, parent_block,
-								flag | VM_CALL_SUPER | VM_CALL_FCALL));
+	ADD_INSN3(ret, line, invokesuper,
+		  new_callinfo(iseq, 0, argc, flag | VM_CALL_SUPER | VM_CALL_FCALL, keywords, parent_block != NULL),
+		  Qnil, /* CALL_CACHE */
+		  parent_block);
 
 	if (poped) {
 	    ADD_INSN(ret, line, pop);
@@ -4507,7 +5153,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	break;
       }
       case NODE_ARRAY:{
-	compile_array_(iseq, ret, node, COMPILE_ARRAY_TYPE_ARRAY, poped);
+	compile_array_(iseq, ret, node, COMPILE_ARRAY_TYPE_ARRAY, NULL, poped);
 	break;
       }
       case NODE_ZARRAY:{
@@ -4544,7 +5190,8 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    break;
 
 	  default:
-	    rb_bug("can't make hash with this node: %s", ruby_node_name(type));
+	    rb_compile_bug_str(ERROR_ARGS_AT(node->nd_head) "can't make hash with this node: %s",
+			       ruby_node_name(type));
 	}
 
 	if (poped) {
@@ -4556,13 +5203,13 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	rb_iseq_t *is = iseq;
 
 	if (is) {
-	    if (is->type == ISEQ_TYPE_TOP) {
-		COMPILE_ERROR((ERROR_ARGS "Invalid return"));
+	    if (is->body->type == ISEQ_TYPE_TOP) {
+		COMPILE_ERROR(ERROR_ARGS "Invalid return");
 	    }
 	    else {
 		LABEL *splabel = 0;
 
-		if (is->type == ISEQ_TYPE_METHOD) {
+		if (is->body->type == ISEQ_TYPE_METHOD) {
 		    splabel = NEW_LABEL(0);
 		    ADD_LABEL(ret, splabel);
 		    ADD_ADJUST(ret, line, 0);
@@ -4570,7 +5217,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 
 		COMPILE(ret, "return nd_stts (return val)", node->nd_stts);
 
-		if (is->type == ISEQ_TYPE_METHOD) {
+		if (is->body->type == ISEQ_TYPE_METHOD) {
 		    add_ensure_iseq(ret, iseq, 1);
 		    ADD_TRACE(ret, line, RUBY_EVENT_RETURN);
 		    ADD_INSN(ret, line, leave);
@@ -4581,7 +5228,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 		    }
 		}
 		else {
-		    ADD_INSN1(ret, line, throw, INT2FIX(0x01) /* TAG_RETURN */ );
+		    ADD_INSN1(ret, line, throw, INT2FIX(TAG_RETURN));
 		    if (poped) {
 			ADD_INSN(ret, line, pop);
 		    }
@@ -4593,22 +5240,25 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
       case NODE_YIELD:{
 	DECL_ANCHOR(args);
 	VALUE argc;
-	VALUE flag = 0;
+	unsigned int flag = 0;
+	struct rb_call_info_kw_arg *keywords = NULL;
 
 	INIT_ANCHOR(args);
-	if (iseq->type == ISEQ_TYPE_TOP) {
-	    COMPILE_ERROR((ERROR_ARGS "Invalid yield"));
+	if (iseq->body->type == ISEQ_TYPE_TOP) {
+	    COMPILE_ERROR(ERROR_ARGS "Invalid yield");
+	    debug_node_end();
+	    return COMPILE_NG;
 	}
 
 	if (node->nd_head) {
-	    argc = setup_args(iseq, args, node->nd_head, &flag);
+	    argc = setup_args(iseq, args, node->nd_head, &flag, &keywords);
 	}
 	else {
 	    argc = INT2FIX(0);
 	}
 
 	ADD_SEQ(ret, args);
-	ADD_INSN1(ret, line, invokeblock, new_callinfo(iseq, 0, FIX2INT(argc), 0, flag));
+	ADD_INSN1(ret, line, invokeblock, new_callinfo(iseq, 0, FIX2INT(argc), flag, keywords, FALSE));
 
 	if (poped) {
 	    ADD_INSN(ret, line, pop);
@@ -4618,9 +5268,9 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
       case NODE_LVAR:{
 	if (!poped) {
 	    ID id = node->nd_vid;
-	    int idx = iseq->local_iseq->local_size - get_local_var_idx(iseq, id);
+	    int idx = iseq->body->local_iseq->body->local_size - get_local_var_idx(iseq, id);
 
-	    debugs("id: %s idx: %d\n", rb_id2name(id), idx);
+	    debugs("id: %"PRIsVALUE" idx: %d\n", rb_id2str(id), idx);
 	    ADD_INSN2(ret, line, getlocal, INT2FIX(idx), INT2FIX(get_lvar_level(iseq)));
 	}
 	break;
@@ -4631,7 +5281,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	if (!poped) {
 	    idx = get_dyna_var_idx(iseq, node->nd_vid, &lv, &ls);
 	    if (idx < 0) {
-		rb_bug("unknown dvar (%s)", rb_id2name(node->nd_vid));
+		rb_compile_bug_str(ERROR_ARGS "unknown dvar (%"PRIsVALUE")", rb_id2str(node->nd_vid));
 	    }
 	    ADD_INSN2(ret, line, getlocal, INT2FIX(ls - idx), INT2FIX(lv));
 	}
@@ -4649,16 +5299,16 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	debugi("nd_vid", node->nd_vid);
 	if (!poped) {
 	    ADD_INSN2(ret, line, getinstancevariable,
-		      ID2SYM(node->nd_vid), INT2FIX(iseq->ic_size++));
+		      ID2SYM(node->nd_vid), INT2FIX(iseq->body->is_size++));
 	}
 	break;
       }
       case NODE_CONST:{
 	debugi("nd_vid", node->nd_vid);
 
-	if (iseq->compile_data->option->inline_const_cache) {
+	if (ISEQ_COMPILE_DATA(iseq)->option->inline_const_cache) {
 	    LABEL *lend = NEW_LABEL(line);
-	    int ic_index = iseq->ic_size++;
+	    int ic_index = iseq->body->is_size++;
 
 	    ADD_INSN2(ret, line, getinlinecache, lend, INT2FIX(ic_index));
 	    ADD_INSN1(ret, line, getconstant, ID2SYM(node->nd_vid));
@@ -4684,6 +5334,10 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
       }
       case NODE_NTH_REF:{
         if (!poped) {
+	    if (!node->nd_nth) {
+		ADD_INSN(ret, line, putnil);
+		break;
+	    }
 	    ADD_INSN2(ret, line, getspecial, INT2FIX(1) /* '~'  */,
 		      INT2FIX(node->nd_nth << 1));
 	}
@@ -4720,7 +5374,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    break;
 	}
 
-	if (iseq->compile_data->option->specialized_instruction) {
+	if (ISEQ_COMPILE_DATA(iseq)->option->specialized_instruction) {
 	    /* TODO: detect by node */
 	    if (recv->last == recv->anchor.next &&
 		INSN_OF(recv->last) == BIN(putobject) &&
@@ -4732,13 +5386,13 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    else {
 		ADD_SEQ(ret, recv);
 		ADD_SEQ(ret, val);
-		ADD_INSN(ret, line, opt_regexpmatch2);
+		ADD_INSN2(ret, line, opt_regexpmatch2, new_callinfo(iseq, idEqTilde, 1, 0, NULL, FALSE), Qnil);
 	    }
 	}
 	else {
 	    ADD_SEQ(ret, recv);
 	    ADD_SEQ(ret, val);
-	    ADD_SEND(ret, line, ID2SYM(idEqTilde), INT2FIX(1));
+	    ADD_SEND(ret, line, idEqTilde, INT2FIX(1));
 	}
 
 	if (poped) {
@@ -4756,8 +5410,22 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
       case NODE_STR:{
 	debugp_param("nd_lit", node->nd_lit);
 	if (!poped) {
-	    OBJ_FREEZE(node->nd_lit);
-	    ADD_INSN1(ret, line, putstring, node->nd_lit);
+	    node->nd_lit = rb_fstring(node->nd_lit);
+	    if (!ISEQ_COMPILE_DATA(iseq)->option->frozen_string_literal) {
+		ADD_INSN1(ret, line, putstring, node->nd_lit);
+	    }
+	    else {
+		if (ISEQ_COMPILE_DATA(iseq)->option->debug_frozen_string_literal || RTEST(ruby_debug)) {
+		    VALUE debug_info = rb_ary_new_from_args(2, iseq->body->location.path, INT2FIX(line));
+		    VALUE str = rb_str_dup(node->nd_lit);
+		    rb_ivar_set(str, id_debug_created_info, rb_obj_freeze(debug_info));
+		    ADD_INSN1(ret, line, putobject, rb_obj_freeze(str));
+		    iseq_add_mark_object_compile_time(iseq, str);
+		}
+		else {
+		    ADD_INSN1(ret, line, putobject, node->nd_lit);
+		}
+	    }
 	}
 	break;
       }
@@ -4767,13 +5435,23 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
+	else {
+	    if (ISEQ_COMPILE_DATA(iseq)->option->frozen_string_literal) {
+		VALUE debug_info = Qnil;
+		if (ISEQ_COMPILE_DATA(iseq)->option->debug_frozen_string_literal || RTEST(ruby_debug)) {
+		    debug_info = rb_ary_new_from_args(2, iseq->body->location.path, INT2FIX(line));
+		    iseq_add_mark_object_compile_time(iseq, rb_obj_freeze(debug_info));
+		}
+		ADD_INSN1(ret, line, freezestring, debug_info);
+	    }
+	}
 	break;
       }
       case NODE_XSTR:{
-	OBJ_FREEZE(node->nd_lit);
+	node->nd_lit = rb_fstring(node->nd_lit);
 	ADD_CALL_RECEIVER(ret, line);
 	ADD_INSN1(ret, line, putobject, node->nd_lit);
-	ADD_CALL(ret, line, ID2SYM(idBackquote), INT2FIX(1));
+	ADD_CALL(ret, line, idBackquote, INT2FIX(1));
 
 	if (poped) {
 	    ADD_INSN(ret, line, pop);
@@ -4783,7 +5461,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
       case NODE_DXSTR:{
 	ADD_CALL_RECEIVER(ret, line);
 	compile_dstr(iseq, ret, node);
-	ADD_CALL(ret, line, ID2SYM(idBackquote), INT2FIX(1));
+	ADD_CALL(ret, line, idBackquote, INT2FIX(1));
 
 	if (poped) {
 	    ADD_INSN(ret, line, pop);
@@ -4810,17 +5488,13 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	break;
       }
       case NODE_DREGX_ONCE:{
-	/* TODO: once? */
-	LABEL *lend = NEW_LABEL(line);
-	int ic_index = iseq->ic_size++;
-
-	ADD_INSN2(ret, line, onceinlinecache, lend, INT2FIX(ic_index));
-	ADD_INSN(ret, line, pop);
-
-	compile_dregx(iseq, ret, node);
+	int ic_index = iseq->body->is_size++;
+	NODE *dregx_node = NEW_NODE(NODE_DREGX, node->u1.value, node->u2.value, node->u3.value);
+	NODE *block_node = NEW_NODE(NODE_SCOPE, 0, dregx_node, 0);
+	const rb_iseq_t *block_iseq = NEW_CHILD_ISEQ(block_node, make_name_for_block(iseq),
+						     ISEQ_TYPE_ONCE_GUARD, line);
 
-	ADD_INSN1(ret, line, setinlinecache, INT2FIX(ic_index));
-	ADD_LABEL(ret, lend);
+	ADD_INSN2(ret, line, once, block_iseq, INT2FIX(ic_index));
 
 	if (poped) {
 	    ADD_INSN(ret, line, pop);
@@ -4868,37 +5542,35 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	break;
       }
       case NODE_DEFN:{
-	VALUE iseqval = NEW_ISEQVAL(node->nd_defn,
-				    rb_str_dup(rb_id2str(node->nd_mid)),
-				    ISEQ_TYPE_METHOD, line);
+	const rb_iseq_t *method_iseq = NEW_ISEQ(node->nd_defn,
+						rb_id2str(node->nd_mid),
+						ISEQ_TYPE_METHOD, line);
 
-	debugp_param("defn/iseq", iseqval);
+	debugp_param("defn/iseq", rb_iseqw_new(method_iseq));
 
 	ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
-	ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_CBASE));
 	ADD_INSN1(ret, line, putobject, ID2SYM(node->nd_mid));
-	ADD_INSN1(ret, line, putiseq, iseqval);
-	ADD_SEND (ret, line, ID2SYM(id_core_define_method), INT2FIX(3));
+	ADD_INSN1(ret, line, putiseq, method_iseq);
+	ADD_SEND (ret, line, id_core_define_method, INT2FIX(2));
 
 	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 
-	debugp_param("defn", iseqval);
 	break;
       }
       case NODE_DEFS:{
-	VALUE iseqval = NEW_ISEQVAL(node->nd_defn,
-				    rb_str_dup(rb_id2str(node->nd_mid)),
-				    ISEQ_TYPE_METHOD, line);
+	const rb_iseq_t * singleton_method = NEW_ISEQ(node->nd_defn,
+						      rb_id2str(node->nd_mid),
+						      ISEQ_TYPE_METHOD, line);
 
-	debugp_param("defs/iseq", iseqval);
+	debugp_param("defs/iseq", rb_iseqw_new(singleton_method));
 
 	ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
 	COMPILE(ret, "defs: recv", node->nd_recv);
 	ADD_INSN1(ret, line, putobject, ID2SYM(node->nd_mid));
-	ADD_INSN1(ret, line, putiseq, iseqval);
-	ADD_SEND (ret, line, ID2SYM(id_core_define_singleton_method), INT2FIX(3));
+	ADD_INSN1(ret, line, putiseq, singleton_method);
+	ADD_SEND (ret, line, id_core_define_singleton_method, INT2FIX(3));
 
 	if (poped) {
 	    ADD_INSN(ret, line, pop);
@@ -4910,7 +5582,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_CBASE));
 	COMPILE(ret, "alias arg1", node->u1.node);
 	COMPILE(ret, "alias arg2", node->u2.node);
-	ADD_SEND(ret, line, ID2SYM(id_core_set_method_alias), INT2FIX(3));
+	ADD_SEND(ret, line, id_core_set_method_alias, INT2FIX(3));
 
 	if (poped) {
 	    ADD_INSN(ret, line, pop);
@@ -4921,7 +5593,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
 	ADD_INSN1(ret, line, putobject, ID2SYM(node->u1.id));
 	ADD_INSN1(ret, line, putobject, ID2SYM(node->u2.id));
-	ADD_SEND(ret, line, ID2SYM(id_core_set_variable_alias), INT2FIX(2));
+	ADD_SEND(ret, line, id_core_set_variable_alias, INT2FIX(2));
 
 	if (poped) {
 	    ADD_INSN(ret, line, pop);
@@ -4932,7 +5604,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
 	ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_CBASE));
 	COMPILE(ret, "undef arg", node->u2.node);
-	ADD_SEND(ret, line, ID2SYM(id_core_undef_method), INT2FIX(2));
+	ADD_SEND(ret, line, id_core_undef_method, INT2FIX(2));
 
 	if (poped) {
 	    ADD_INSN(ret, line, pop);
@@ -4940,18 +5612,16 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	break;
       }
       case NODE_CLASS:{
-	VALUE iseqval =
-	    NEW_CHILD_ISEQVAL(
-		node->nd_body,
-		rb_sprintf("<class:%s>", rb_id2name(node->nd_cpath->nd_mid)),
-		ISEQ_TYPE_CLASS, line);
+	const rb_iseq_t *class_iseq = NEW_CHILD_ISEQ(node->nd_body,
+						     rb_sprintf("<class:%"PRIsVALUE">", rb_id2str(node->nd_cpath->nd_mid)),
+						     ISEQ_TYPE_CLASS, line);
 	VALUE noscope = compile_cpath(ret, iseq, node->nd_cpath);
 	int flags = VM_DEFINECLASS_TYPE_CLASS;
+
 	if (!noscope) flags |= VM_DEFINECLASS_FLAG_SCOPED;
 	if (node->nd_super) flags |= VM_DEFINECLASS_FLAG_HAS_SUPERCLASS;
 	COMPILE(ret, "super", node->nd_super);
-	ADD_INSN3(ret, line, defineclass,
-		  ID2SYM(node->nd_cpath->nd_mid), iseqval, INT2FIX(flags));
+	ADD_INSN3(ret, line, defineclass, ID2SYM(node->nd_cpath->nd_mid), class_iseq, INT2FIX(flags));
 
 	if (poped) {
 	    ADD_INSN(ret, line, pop);
@@ -4959,17 +5629,16 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	break;
       }
       case NODE_MODULE:{
-	VALUE iseqval = NEW_CHILD_ISEQVAL(
-	    node->nd_body,
-	    rb_sprintf("<module:%s>", rb_id2name(node->nd_cpath->nd_mid)),
-	    ISEQ_TYPE_CLASS, line);
-
+        const rb_iseq_t *module_iseq = NEW_CHILD_ISEQ(node->nd_body,
+						      rb_sprintf("<module:%"PRIsVALUE">", rb_id2str(node->nd_cpath->nd_mid)),
+						      ISEQ_TYPE_CLASS, line);
 	VALUE noscope = compile_cpath(ret, iseq, node->nd_cpath);
 	int flags = VM_DEFINECLASS_TYPE_MODULE;
+
 	if (!noscope) flags |= VM_DEFINECLASS_FLAG_SCOPED;
 	ADD_INSN (ret, line, putnil); /* dummy */
-	ADD_INSN3(ret, line, defineclass,
-		  ID2SYM(node->nd_cpath->nd_mid), iseqval, INT2FIX(flags));
+	ADD_INSN3(ret, line, defineclass, ID2SYM(node->nd_cpath->nd_mid), module_iseq, INT2FIX(flags));
+
 	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
@@ -4977,15 +5646,14 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
       }
       case NODE_SCLASS:{
 	ID singletonclass;
-	VALUE iseqval =
-	    NEW_ISEQVAL(node->nd_body, rb_str_new2("singleton class"),
-			ISEQ_TYPE_CLASS, line);
+	const rb_iseq_t *singleton_class = NEW_ISEQ(node->nd_body, rb_str_new2("singleton class"),
+						    ISEQ_TYPE_CLASS, line);
 
 	COMPILE(ret, "sclass#recv", node->nd_recv);
 	ADD_INSN (ret, line, putnil);
 	CONST_ID(singletonclass, "singletonclass");
 	ADD_INSN3(ret, line, defineclass,
-		  ID2SYM(singletonclass), iseqval,
+		  ID2SYM(singletonclass), singleton_class,
 		  INT2FIX(VM_DEFINECLASS_TYPE_SINGLETON_CLASS));
 
 	if (poped) {
@@ -4997,7 +5665,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	if (rb_is_const_id(node->nd_mid)) {
 	    /* constant */
 	    LABEL *lend = NEW_LABEL(line);
-	    int ic_index = iseq->ic_size++;
+	    int ic_index = iseq->body->is_size++;
 
 	    DECL_ANCHOR(pref);
 	    DECL_ANCHOR(body);
@@ -5006,7 +5674,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    INIT_ANCHOR(body);
 	    compile_colon2(iseq, node, pref, body);
 	    if (LIST_SIZE_ZERO(pref)) {
-		if (iseq->compile_data->option->inline_const_cache) {
+		if (ISEQ_COMPILE_DATA(iseq)->option->inline_const_cache) {
 		    ADD_INSN2(ret, line, getinlinecache, lend, INT2FIX(ic_index));
 		}
 		else {
@@ -5015,7 +5683,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 
 		ADD_SEQ(ret, body);
 
-		if (iseq->compile_data->option->inline_const_cache) {
+		if (ISEQ_COMPILE_DATA(iseq)->option->inline_const_cache) {
 		    ADD_INSN1(ret, line, setinlinecache, INT2FIX(ic_index));
 		    ADD_LABEL(ret, lend);
 		}
@@ -5029,8 +5697,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    /* function call */
 	    ADD_CALL_RECEIVER(ret, line);
 	    COMPILE(ret, "colon2#nd_head", node->nd_head);
-	    ADD_CALL(ret, line, ID2SYM(node->nd_mid),
-		     INT2FIX(1));
+	    ADD_CALL(ret, line, node->nd_mid, INT2FIX(1));
 	}
 	if (poped) {
 	    ADD_INSN(ret, line, pop);
@@ -5039,12 +5706,12 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
       }
       case NODE_COLON3:{
 	LABEL *lend = NEW_LABEL(line);
-	int ic_index = iseq->ic_size++;
+	int ic_index = iseq->body->is_size++;
 
 	debugi("colon3#nd_mid", node->nd_mid);
 
 	/* add cache insn */
-	if (iseq->compile_data->option->inline_const_cache) {
+	if (ISEQ_COMPILE_DATA(iseq)->option->inline_const_cache) {
 	    ADD_INSN2(ret, line, getinlinecache, lend, INT2FIX(ic_index));
 	    ADD_INSN(ret, line, pop);
 	}
@@ -5052,7 +5719,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	ADD_INSN1(ret, line, putobject, rb_cObject);
 	ADD_INSN1(ret, line, getconstant, ID2SYM(node->nd_mid));
 
-	if (iseq->compile_data->option->inline_const_cache) {
+	if (ISEQ_COMPILE_DATA(iseq)->option->inline_const_cache) {
 	    ADD_INSN1(ret, line, setinlinecache, INT2FIX(ic_index));
 	    ADD_LABEL(ret, lend);
 	}
@@ -5081,11 +5748,11 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	LABEL *lend = NEW_LABEL(line);
 	LABEL *lfin = NEW_LABEL(line);
 	LABEL *ltrue = NEW_LABEL(line);
-	rb_iseq_t *local_iseq = iseq->local_iseq;
+	rb_iseq_t *local_iseq = iseq->body->local_iseq;
 	rb_num_t cnt;
 	VALUE key;
 
-	cnt = local_iseq->flip_cnt++ + DEFAULT_SPECIAL_VAR_COUNT;
+	cnt = ISEQ_FLIP_CNT_INCREMENT(local_iseq) + VM_SVAR_FLIPFLOP_START;
 	key = INT2FIX(cnt);
 
 	ADD_INSN2(ret, line, getspecial, key, INT2FIX(0));
@@ -5143,17 +5810,17 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
       }
       case NODE_ERRINFO:{
 	if (!poped) {
-	    if (iseq->type == ISEQ_TYPE_RESCUE) {
+	    if (iseq->body->type == ISEQ_TYPE_RESCUE) {
 		ADD_INSN2(ret, line, getlocal, INT2FIX(2), INT2FIX(0));
 	    }
 	    else {
-		rb_iseq_t *ip = iseq;
+		const rb_iseq_t *ip = iseq;
 		int level = 0;
 		while (ip) {
-		    if (ip->type == ISEQ_TYPE_RESCUE) {
+		    if (ip->body->type == ISEQ_TYPE_RESCUE) {
 			break;
 		    }
-		    ip = ip->parent_iseq;
+		    ip = ip->body->parent_iseq;
 		    level++;
 		}
 		if (ip) {
@@ -5188,61 +5855,55 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	break;
       }
       case NODE_POSTEXE:{
-	LABEL *lend = NEW_LABEL(line);
-	VALUE block = NEW_CHILD_ISEQVAL(node->nd_body, make_name_for_block(iseq), ISEQ_TYPE_BLOCK, line);
-	int ic_index = iseq->ic_size++;
-
-	ADD_INSN2(ret, line, onceinlinecache, lend, INT2FIX(ic_index));
-	ADD_INSN(ret, line, pop);
-
-	ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
-	ADD_INSN1(ret, line, putiseq, block);
-	ADD_SEND (ret, line, ID2SYM(id_core_set_postexe), INT2FIX(1));
+	/* compiled to:
+	 *   ONCE{ rb_mRubyVMFrozenCore::core#set_postexe{ ... } }
+	 */
+	int is_index = iseq->body->is_size++;
+	const rb_iseq_t *once_iseq = NEW_CHILD_ISEQ((NODE *)IFUNC_NEW(build_postexe_iseq, node->nd_body, 0),
+						    make_name_for_block(iseq), ISEQ_TYPE_BLOCK, line);
 
-	ADD_INSN1(ret, line, setinlinecache, INT2FIX(ic_index));
-	ADD_LABEL(ret, lend);
+	ADD_INSN2(ret, line, once, once_iseq, INT2FIX(is_index));
 
 	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
-      case NODE_KW_ARG:{
-	LABEL *default_label = NEW_LABEL(line);
-	LABEL *end_label = NEW_LABEL(line);
-	int idx, lv, ls;
-	ID id = node->nd_body->nd_vid;
+      case NODE_KW_ARG:
+	{
+	    LABEL *end_label = NEW_LABEL(nd_line(node));
+	    NODE *default_value = node->nd_body->nd_value;
+
+	    if (default_value == (NODE *)-1) {
+		/* required argument. do nothing */
+		rb_compile_bug_str(ERROR_ARGS "unreachable");
+	    }
+	    else if (nd_type(default_value) == NODE_LIT ||
+		     nd_type(default_value) == NODE_NIL ||
+		     nd_type(default_value) == NODE_TRUE ||
+		     nd_type(default_value) == NODE_FALSE) {
+		rb_compile_bug_str(ERROR_ARGS "unreachable");
+	    }
+	    else {
+		/* if keywordcheck(_kw_bits, nth_keyword)
+		 *   kw = default_value
+		 * end
+		 */
+		int kw_bits_idx = iseq->body->local_size - iseq->body->param.keyword->bits_start;
+		int keyword_idx = iseq->body->param.keyword->num;
+
+		ADD_INSN2(ret, line, checkkeyword, INT2FIX(kw_bits_idx), INT2FIX(keyword_idx));
+		ADD_INSNL(ret, line, branchif, end_label);
+		COMPILE_POPED(ret, "keyword default argument", node->nd_body);
+		ADD_LABEL(ret, end_label);
+	    }
 
-	ADD_INSN(ret, line, dup);
-	ADD_INSN1(ret, line, putobject, ID2SYM(id));
-	ADD_SEND(ret, line, ID2SYM(rb_intern("key?")), INT2FIX(1));
-	ADD_INSNL(ret, line, branchunless, default_label);
-	ADD_INSN(ret, line, dup);
-	ADD_INSN1(ret, line, putobject, ID2SYM(id));
-	ADD_SEND(ret, line, ID2SYM(rb_intern("delete")), INT2FIX(1));
-	switch (nd_type(node->nd_body)) {
-	  case NODE_LASGN:
-	    idx = iseq->local_iseq->local_size - get_local_var_idx(iseq, id);
-	    ADD_INSN2(ret, line, setlocal, INT2FIX(idx), INT2FIX(get_lvar_level(iseq)));
-	    break;
-	  case NODE_DASGN:
-	  case NODE_DASGN_CURR:
-	    idx = get_dyna_var_idx(iseq, id, &lv, &ls);
-	    ADD_INSN2(ret, line, setlocal, INT2FIX(ls - idx), INT2FIX(lv));
 	    break;
-	  default:
-	    rb_bug("iseq_compile_each (NODE_KW_ARG): unknown node: %s", ruby_node_name(nd_type(node->nd_body)));
 	}
-	ADD_INSNL(ret, line, jump, end_label);
-	ADD_LABEL(ret, default_label);
-	COMPILE_POPED(ret, "keyword default argument", node->nd_body);
-	ADD_LABEL(ret, end_label);
-	break;
-      }
       case NODE_DSYM:{
 	compile_dstr(iseq, ret, node);
 	if (!poped) {
-	    ADD_SEND(ret, line, ID2SYM(idIntern), INT2FIX(0));
+	    ADD_SEND(ret, line, idIntern, INT2FIX(0));
 	}
 	else {
 	    ADD_INSN(ret, line, pop);
@@ -5252,24 +5913,52 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
       case NODE_ATTRASGN:{
 	DECL_ANCHOR(recv);
 	DECL_ANCHOR(args);
-	VALUE flag = 0;
+	unsigned int flag = 0;
+	ID mid = node->nd_mid;
+	LABEL *lskip = 0;
 	VALUE argc;
 
+	/* optimization shortcut
+	 *   obj["literal"] = value -> opt_aset_with(obj, "literal", value)
+	 */
+	if (mid == idASET && !private_recv_p(node) && node->nd_args &&
+	    nd_type(node->nd_args) == NODE_ARRAY && node->nd_args->nd_alen == 2 &&
+	    nd_type(node->nd_args->nd_head) == NODE_STR &&
+	    ISEQ_COMPILE_DATA(iseq)->current_block == NULL &&
+	    ISEQ_COMPILE_DATA(iseq)->option->specialized_instruction)
+	{
+	    VALUE str = rb_fstring(node->nd_args->nd_head->nd_lit);
+	    node->nd_args->nd_head->nd_lit = str;
+	    iseq_add_mark_object(iseq, str);
+	    COMPILE(ret, "recv", node->nd_recv);
+	    COMPILE(ret, "value", node->nd_args->nd_next->nd_head);
+	    if (!poped) {
+		ADD_INSN(ret, line, swap);
+		ADD_INSN1(ret, line, topn, INT2FIX(1));
+	    }
+	    ADD_INSN3(ret, line, opt_aset_with,
+		      new_callinfo(iseq, idASET, 2, 0, NULL, FALSE),
+		      NULL/* CALL_CACHE */, str);
+	    ADD_INSN(ret, line, pop);
+	    break;
+	}
+
 	INIT_ANCHOR(recv);
 	INIT_ANCHOR(args);
-	argc = setup_args(iseq, args, node->nd_args, &flag);
+	argc = setup_args(iseq, args, node->nd_args, &flag, NULL);
 
-	if (node->nd_recv == (NODE *) 1) {
-	    flag |= VM_CALL_FCALL;
-	    ADD_INSN(recv, line, putself);
-	}
-	else {
-	    COMPILE(recv, "recv", node->nd_recv);
-	}
+	flag |= COMPILE_RECV(recv, "recv", node);
 
 	debugp_param("argc", argc);
-	debugp_param("nd_mid", ID2SYM(node->nd_mid));
+	debugp_param("nd_mid", ID2SYM(mid));
 
+	if (!rb_is_attrset_id(mid)) {
+	    /* safe nav attr */
+	    mid = rb_id_attrset(mid);
+	    ADD_INSN(recv, line, dup);
+	    lskip = NEW_LABEL(line);
+	    ADD_INSNL(recv, line, branchnil, lskip);
+	}
 	if (!poped) {
 	    ADD_INSN(ret, line, putnil);
 	    ADD_SEQ(ret, recv);
@@ -5279,7 +5968,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 		ADD_INSN1(ret, line, topn, INT2FIX(1));
 		if (flag & VM_CALL_ARGS_SPLAT) {
 		    ADD_INSN1(ret, line, putobject, INT2FIX(-1));
-		    ADD_SEND(ret, line, ID2SYM(idAREF), INT2FIX(1));
+		    ADD_SEND(ret, line, idAREF, INT2FIX(1));
 		}
 		ADD_INSN1(ret, line, setn, FIXNUM_INC(argc, 3));
 		ADD_INSN (ret, line, pop);
@@ -5287,7 +5976,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    else if (flag & VM_CALL_ARGS_SPLAT) {
 		ADD_INSN(ret, line, dup);
 		ADD_INSN1(ret, line, putobject, INT2FIX(-1));
-		ADD_SEND(ret, line, ID2SYM(idAREF), INT2FIX(1));
+		ADD_SEND(ret, line, idAREF, INT2FIX(1));
 		ADD_INSN1(ret, line, setn, FIXNUM_INC(argc, 2));
 		ADD_INSN (ret, line, pop);
 	    }
@@ -5299,22 +5988,31 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    ADD_SEQ(ret, recv);
 	    ADD_SEQ(ret, args);
 	}
-	ADD_SEND_R(ret, line, ID2SYM(node->nd_mid), argc, 0, LONG2FIX(flag));
+	ADD_SEND_WITH_FLAG(ret, line, mid, argc, INT2FIX(flag));
+	if (lskip) ADD_LABEL(ret, lskip);
 	ADD_INSN(ret, line, pop);
 
 	break;
       }
       case NODE_PRELUDE:{
+	const rb_compile_option_t *orig_opt = ISEQ_COMPILE_DATA(iseq)->option;
+	rb_compile_option_t new_opt = *orig_opt;
+	if (node->nd_orig) {
+	    rb_iseq_make_compile_option(&new_opt, node->nd_orig);
+	    ISEQ_COMPILE_DATA(iseq)->option = &new_opt;
+	}
 	COMPILE_POPED(ret, "prelude", node->nd_head);
 	COMPILE_(ret, "body", node->nd_body, poped);
+	ISEQ_COMPILE_DATA(iseq)->option = orig_opt;
 	break;
       }
       case NODE_LAMBDA:{
 	/* compile same as lambda{...} */
-	VALUE block = NEW_CHILD_ISEQVAL(node->nd_body, make_name_for_block(iseq), ISEQ_TYPE_BLOCK, line);
+	const rb_iseq_t *block = NEW_CHILD_ISEQ(node->nd_body, make_name_for_block(iseq), ISEQ_TYPE_BLOCK, line);
 	VALUE argc = INT2FIX(0);
+
 	ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
-	ADD_CALL_WITH_BLOCK(ret, line, ID2SYM(idLambda), argc, block);
+	ADD_CALL_WITH_BLOCK(ret, line, idLambda, argc, block);
 
 	if (poped) {
 	    ADD_INSN(ret, line, pop);
@@ -5322,10 +6020,17 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	break;
       }
       default:
-	rb_bug("iseq_compile_each: unknown node: %s", ruby_node_name(type));
+	UNKNOWN_NODE("iseq_compile_each", node);
 	return COMPILE_NG;
     }
 
+    /* check & remove redundant trace(line) */
+    if (saved_last_element && ret /* ret can be 0 when error */ &&
+	ret->last == saved_last_element &&
+	((INSN *)saved_last_element)->insn_id == BIN(trace)) {
+	POP_ELEMENT(ret);
+    }
+
     debug_node_end();
     return COMPILE_OK;
 }
@@ -5346,16 +6051,29 @@ calc_sp_depth(int depth, INSN *insn)
     return insn_stack_increase(depth, insn->insn_id, insn->operands);
 }
 
-static int
-insn_data_line_no(INSN *iobj)
+static VALUE
+opobj_inspect(VALUE obj)
 {
-    return insn_len(iobj->line_no);
+    struct RBasic *r = (struct RBasic *) obj;
+    if (!SPECIAL_CONST_P(r)  && r->klass == 0) {
+	switch (BUILTIN_TYPE(r)) {
+	  case T_STRING:
+	    obj = rb_str_new_cstr(RSTRING_PTR(obj));
+	    break;
+	  case T_ARRAY:
+	    obj = rb_ary_dup(obj);
+	    break;
+	}
+    }
+    return rb_inspect(obj);
 }
 
+
+
 static VALUE
 insn_data_to_s_detail(INSN *iobj)
 {
-    VALUE str = rb_sprintf("%-16s", insn_name(iobj->insn_id));
+    VALUE str = rb_sprintf("%-20s ", insn_name(iobj->insn_id));
 
     if (iobj->operands) {
 	const char *types = insn_op_types(iobj->insn_id);
@@ -5363,7 +6081,6 @@ insn_data_to_s_detail(INSN *iobj)
 
 	for (j = 0; types[j]; j++) {
 	    char type = types[j];
-	    printf("str: %"PRIxVALUE", type: %c\n", str, type);
 
 	    switch (type) {
 	      case TS_OFFSET:	/* label(destination position) */
@@ -5378,9 +6095,9 @@ insn_data_to_s_detail(INSN *iobj)
 		    rb_iseq_t *iseq = (rb_iseq_t *)OPERAND_AT(iobj, j);
 		    VALUE val = Qnil;
 		    if (0 && iseq) { /* TODO: invalidate now */
-			val = iseq->self;
+			val = (VALUE)iseq;
 		    }
-		    rb_str_concat(str, rb_inspect(val));
+		    rb_str_concat(str, opobj_inspect(val));
 		}
 		break;
 	      case TS_LINDEX:
@@ -5388,17 +6105,17 @@ insn_data_to_s_detail(INSN *iobj)
 	      case TS_VALUE:	/* VALUE */
 		{
 		    VALUE v = OPERAND_AT(iobj, j);
-		    rb_str_concat(str, rb_inspect(v));
+		    rb_str_concat(str, opobj_inspect(v));
 		    break;
 		}
 	      case TS_ID:	/* ID */
-		rb_str_concat(str, rb_inspect(OPERAND_AT(iobj, j)));
+		rb_str_concat(str, opobj_inspect(OPERAND_AT(iobj, j)));
 		break;
 	      case TS_GENTRY:
 		{
 		    struct rb_global_entry *entry = (struct rb_global_entry *)
 		      (OPERAND_AT(iobj, j) & (~1));
-		    rb_str_cat2(str, rb_id2name(entry->id));
+		    rb_str_append(str, rb_id2str(entry->id));
 		    break;
 		}
 	      case TS_IC:	/* inline cache */
@@ -5406,13 +6123,33 @@ insn_data_to_s_detail(INSN *iobj)
 		break;
 	      case TS_CALLINFO: /* call info */
 		{
-		    rb_call_info_t *ci = (rb_call_info_t *)OPERAND_AT(iobj, j);
-		    rb_str_catf(str, "<callinfo:%s, %d>", ci->mid ? rb_id2name(ci->mid) : "", ci->orig_argc);
+		    struct rb_call_info *ci = (struct rb_call_info *)OPERAND_AT(iobj, j);
+		    rb_str_cat2(str, "<callinfo:");
+		    if (ci->mid) rb_str_catf(str, "%"PRIsVALUE, rb_id2str(ci->mid));
+		    rb_str_catf(str, ", %d>", ci->orig_argc);
+		    break;
+		}
+	      case TS_CALLCACHE: /* call cache */
+		{
+		    rb_str_catf(str, "<call cache>");
 		    break;
 		}
 	      case TS_CDHASH:	/* case/when condition cache */
 		rb_str_cat2(str, "<ch>");
 		break;
+	      case TS_FUNCPTR:
+		{
+		    rb_insn_func_t func = (rb_insn_func_t)OPERAND_AT(iobj, j);
+#ifdef HAVE_DLADDR
+		    Dl_info info;
+		    if (dladdr(func, &info) && info.dli_sname) {
+			rb_str_cat2(str, info.dli_sname);
+			break;
+		    }
+#endif
+		    rb_str_catf(str, "<%p>", func);
+		}
+		break;
 	      default:{
 		rb_raise(rb_eSyntaxError, "unknown operand type: %c", type);
 	      }
@@ -5441,7 +6178,7 @@ dump_disasm_list(struct iseq_link_element *link)
 	    {
 		iobj = (INSN *)link;
 		str = insn_data_to_s_detail(iobj);
-		printf("%04d %-65s(%4d)\n", pos, StringValueCStr(str), insn_data_line_no(iobj));
+		printf("%04d %-65s(%4u)\n", pos, StringValueCStr(str), iobj->line_no);
 		pos += insn_data_length(iobj);
 		break;
 	    }
@@ -5459,7 +6196,7 @@ dump_disasm_list(struct iseq_link_element *link)
 	  case ISEQ_ELEMENT_ADJUST:
 	    {
 		ADJUST *adjust = (ADJUST *)link;
-		printf("adjust: [label: %d]\n", adjust->label->label_no);
+		printf("adjust: [label: %d]\n", adjust->label ? adjust->label->label_no : -1);
 		break;
 	    }
 	  default:
@@ -5469,6 +6206,7 @@ dump_disasm_list(struct iseq_link_element *link)
 	link = link->next;
     }
     printf("---------------------\n");
+    fflush(stdout);
 }
 
 const char *
@@ -5483,7 +6221,7 @@ rb_insns_name_array(void)
     VALUE ary = rb_ary_new();
     int i;
     for (i = 0; i < numberof(insn_name_info); i++) {
-	rb_ary_push(ary, rb_obj_freeze(rb_str_new2(insn_name_info[i])));
+	rb_ary_push(ary, rb_fstring(rb_str_new2(insn_name_info[i])));
     }
     return rb_obj_freeze(ary);
 }
@@ -5502,6 +6240,7 @@ register_label(rb_iseq_t *iseq, struct st_table *labels_table, VALUE obj)
     else {
 	label = (LABEL *)tmp;
     }
+    LABEL_REF(label);
     return label;
 }
 
@@ -5510,7 +6249,6 @@ get_exception_sym2type(VALUE sym)
 {
 #undef rb_intern
 #define rb_intern(str) rb_intern_const(str)
-    VALUE sym_inspect;
     static VALUE symRescue, symEnsure, symRetry;
     static VALUE symBreak, symRedo, symNext;
 
@@ -5529,9 +6267,7 @@ get_exception_sym2type(VALUE sym)
     if (sym == symBreak)  return CATCH_TYPE_BREAK;
     if (sym == symRedo)   return CATCH_TYPE_REDO;
     if (sym == symNext)   return CATCH_TYPE_NEXT;
-    sym_inspect = rb_inspect(sym);
-    rb_raise(rb_eSyntaxError, "invalid exception symbol: %s",
-	     StringValuePtr(sym_inspect));
+    rb_raise(rb_eSyntaxError, "invalid exception symbol: %+"PRIsVALUE, sym);
     return 0;
 }
 
@@ -5542,32 +6278,36 @@ iseq_build_from_ary_exception(rb_iseq_t *iseq, struct st_table *labels_table,
     int i;
 
     for (i=0; i<RARRAY_LEN(exception); i++) {
-	VALUE v, type, *ptr, eiseqval;
+	const rb_iseq_t *eiseq;
+	VALUE v, type;
+	const VALUE *ptr;
 	LABEL *lstart, *lend, *lcont;
-	int sp;
+	unsigned int sp;
 
-	RB_GC_GUARD(v) = rb_convert_type(RARRAY_PTR(exception)[i], T_ARRAY,
+	v = rb_convert_type(RARRAY_AREF(exception, i), T_ARRAY,
 					 "Array", "to_ary");
 	if (RARRAY_LEN(v) != 6) {
 	    rb_raise(rb_eSyntaxError, "wrong exception entry");
 	}
-	ptr  = RARRAY_PTR(v);
+	ptr  = RARRAY_CONST_PTR(v);
 	type = get_exception_sym2type(ptr[0]);
 	if (ptr[1] == Qnil) {
-	    eiseqval = 0;
+	    eiseq = NULL;
 	}
 	else {
-	    eiseqval = rb_iseq_load(ptr[1], iseq->self, Qnil);
+	    eiseq = rb_iseqw_to_iseq(rb_iseq_load(ptr[1], (VALUE)iseq, Qnil));
 	}
 
 	lstart = register_label(iseq, labels_table, ptr[2]);
 	lend   = register_label(iseq, labels_table, ptr[3]);
 	lcont  = register_label(iseq, labels_table, ptr[4]);
-	sp     = NUM2INT(ptr[5]);
+	sp     = NUM2UINT(ptr[5]);
 
 	(void)sp;
 
-	ADD_CATCH_ENTRY(type, lstart, lend, eiseqval, lcont);
+	ADD_CATCH_ENTRY(type, lstart, lend, eiseq, lcont);
+
+	RB_GC_GUARD(v);
     }
     return COMPILE_OK;
 }
@@ -5586,32 +6326,74 @@ insn_make_insn_table(void)
     return table;
 }
 
-static VALUE
-iseq_build_load_iseq(rb_iseq_t *iseq, VALUE op)
+static const rb_iseq_t *
+iseq_build_load_iseq(const rb_iseq_t *iseq, VALUE op)
 {
-    VALUE iseqval;
+    VALUE iseqw;
+    const rb_iseq_t *loaded_iseq;
+
     if (RB_TYPE_P(op, T_ARRAY)) {
-	iseqval = rb_iseq_load(op, iseq->self, Qnil);
+	iseqw = rb_iseq_load(op, (VALUE)iseq, Qnil);
     }
     else if (CLASS_OF(op) == rb_cISeq) {
-	iseqval = op;
+	iseqw = op;
     }
     else {
 	rb_raise(rb_eSyntaxError, "ISEQ is required");
     }
-    iseq_add_mark_object(iseq, iseqval);
-    return iseqval;
+
+    loaded_iseq = rb_iseqw_to_iseq(iseqw);
+    iseq_add_mark_object(iseq, (VALUE)loaded_iseq);
+    return loaded_iseq;
+}
+
+static VALUE
+iseq_build_callinfo_from_hash(rb_iseq_t *iseq, VALUE op)
+{
+    ID mid = 0;
+    int orig_argc = 0;
+    unsigned int flag = 0;
+    struct rb_call_info_kw_arg *kw_arg = 0;
+
+    if (!NIL_P(op)) {
+	VALUE vmid = rb_hash_aref(op, ID2SYM(rb_intern("mid")));
+	VALUE vflag = rb_hash_aref(op, ID2SYM(rb_intern("flag")));
+	VALUE vorig_argc = rb_hash_aref(op, ID2SYM(rb_intern("orig_argc")));
+	VALUE vkw_arg = rb_hash_aref(op, ID2SYM(rb_intern("kw_arg")));
+
+	if (!NIL_P(vmid)) mid = SYM2ID(vmid);
+	if (!NIL_P(vflag)) flag = NUM2UINT(vflag);
+	if (!NIL_P(vorig_argc)) orig_argc = FIX2INT(vorig_argc);
+
+	if (!NIL_P(vkw_arg)) {
+	    int i;
+	    int len = RARRAY_LENINT(vkw_arg);
+	    size_t n = rb_call_info_kw_arg_bytes(len);
+
+	    kw_arg = xmalloc(n);
+	    kw_arg->keyword_len = len;
+	    for (i = 0; i < len; i++) {
+		VALUE kw = RARRAY_AREF(vkw_arg, i);
+		SYM2ID(kw);	/* make immortal */
+		kw_arg->keywords[i] = kw;
+	    }
+	}
+    }
+
+    return (VALUE)new_callinfo(iseq, mid, orig_argc, flag, kw_arg, (flag & VM_CALL_ARGS_SIMPLE) == 0);
 }
 
 static int
 iseq_build_from_ary_body(rb_iseq_t *iseq, LINK_ANCHOR *anchor,
-		VALUE body, struct st_table *labels_table)
+			 VALUE body, VALUE labels_wrapper)
 {
     /* TODO: body should be frozen */
-    VALUE *ptr = RARRAY_PTR(body);
+    const VALUE *ptr = RARRAY_CONST_PTR(body);
     long i, len = RARRAY_LEN(body);
+    struct st_table *labels_table = DATA_PTR(labels_wrapper);
     int j;
     int line_no = 0;
+    int ret = COMPILE_OK;
 
     /*
      * index -> LABEL *label
@@ -5638,17 +6420,20 @@ iseq_build_from_ary_body(rb_iseq_t *iseq, LINK_ANCHOR *anchor,
 	    st_data_t insn_id;
 	    VALUE insn;
 
-	    insn = (argc < 0) ? Qnil : RARRAY_PTR(obj)[0];
+	    insn = (argc < 0) ? Qnil : RARRAY_AREF(obj, 0);
 	    if (st_lookup(insn_table, (st_data_t)insn, &insn_id) == 0) {
 		/* TODO: exception */
-		RB_GC_GUARD(insn) = rb_inspect(insn);
-		rb_compile_error(RSTRING_PTR(iseq->location.path), line_no,
-				 "unknown instruction: %s", RSTRING_PTR(insn));
+		COMPILE_ERROR(ruby_sourcefile_string, line_no,
+			      "unknown instruction: %+"PRIsVALUE, insn);
+		ret = COMPILE_NG;
+		break;
 	    }
 
 	    if (argc != insn_len((VALUE)insn_id)-1) {
-		rb_compile_error(RSTRING_PTR(iseq->location.path), line_no,
-				 "operand size mismatch");
+		COMPILE_ERROR(ruby_sourcefile_string, line_no,
+			      "operand size mismatch");
+		ret = COMPILE_NG;
+		break;
 	    }
 
 	    if (argc > 0) {
@@ -5673,7 +6458,7 @@ iseq_build_from_ary_body(rb_iseq_t *iseq, LINK_ANCHOR *anchor,
 		      case TS_ISEQ:
 			{
 			    if (op != Qnil) {
-				argv[j] = iseq_build_load_iseq(iseq, op);
+				argv[j] = (VALUE)iseq_build_load_iseq(iseq, op);
 			    }
 			    else {
 				argv[j] = 0;
@@ -5686,30 +6471,15 @@ iseq_build_from_ary_body(rb_iseq_t *iseq, LINK_ANCHOR *anchor,
 			break;
 		      case TS_IC:
 			argv[j] = op;
-			if (NUM2INT(op) >= iseq->ic_size) {
-			    iseq->ic_size = NUM2INT(op) + 1;
+			if (NUM2UINT(op) >= iseq->body->is_size) {
+			    iseq->body->is_size = NUM2INT(op) + 1;
 			}
 			break;
 		      case TS_CALLINFO:
-			{
-			    ID mid = 0;
-			    int orig_argc = 0;
-			    VALUE block = 0;
-			    unsigned long flag = 0;
-
-			    if (!NIL_P(op)) {
-				VALUE vmid = rb_hash_aref(op, ID2SYM(rb_intern("mid")));
-				VALUE vflag = rb_hash_aref(op, ID2SYM(rb_intern("flag")));
-				VALUE vorig_argc = rb_hash_aref(op, ID2SYM(rb_intern("orig_argc")));
-				VALUE vblock = rb_hash_aref(op, ID2SYM(rb_intern("block")));
-
-				if (!NIL_P(vmid)) mid = SYM2ID(vmid);
-				if (!NIL_P(vflag)) flag = NUM2ULONG(vflag);
-				if (!NIL_P(vorig_argc)) orig_argc = FIX2INT(vorig_argc);
-				if (!NIL_P(vblock)) block = iseq_build_load_iseq(iseq, vblock);
-			    }
-			    argv[j] = (VALUE)new_callinfo(iseq, mid, orig_argc, block, flag);
-			}
+			argv[j] = iseq_build_callinfo_from_hash(iseq, op);
+			break;
+		      case TS_CALLCACHE:
+			argv[j] = Qfalse;
 			break;
 		      case TS_ID:
 			argv[j] = rb_convert_type(op, T_SYMBOL,
@@ -5718,16 +6488,30 @@ iseq_build_from_ary_body(rb_iseq_t *iseq, LINK_ANCHOR *anchor,
 		      case TS_CDHASH:
 			{
 			    int i;
+			    VALUE map = rb_hash_new();
+
+			    rb_hash_tbl_raw(map)->type = &cdhash_type;
 			    op = rb_convert_type(op, T_ARRAY, "Array", "to_ary");
-			    op = rb_ary_dup(op);
 			    for (i=0; i<RARRAY_LEN(op); i+=2) {
-				VALUE sym = rb_ary_entry(op, i+1);
+				VALUE key = RARRAY_AREF(op, i);
+				VALUE sym = RARRAY_AREF(op, i+1);
 				LABEL *label =
 				  register_label(iseq, labels_table, sym);
-				rb_ary_store(op, i+1, (VALUE)label | 1);
+				rb_hash_aset(map, key, (VALUE)label | 1);
 			    }
-			    argv[j] = op;
-			    iseq_add_mark_object_compile_time(iseq, op);
+			    RB_GC_GUARD(op);
+			    argv[j] = map;
+			    rb_iseq_add_mark_object(iseq, map);
+			}
+			break;
+		      case TS_FUNCPTR:
+			{
+#if SIZEOF_VALUE <= SIZEOF_LONG
+			    long funcptr = NUM2LONG(op);
+#else
+			    LONG_LONG funcptr = NUM2LL(op);
+#endif
+			    argv[j] = (VALUE)funcptr;
 			}
 			break;
 		      default:
@@ -5743,87 +6527,197 @@ iseq_build_from_ary_body(rb_iseq_t *iseq, LINK_ANCHOR *anchor,
 	    rb_raise(rb_eTypeError, "unexpected object for instruction");
 	}
     }
+    DATA_PTR(labels_wrapper) = 0;
     validate_labels(iseq, labels_table);
-    st_free_table(labels_table);
-    iseq_setup(iseq, anchor);
-    return COMPILE_OK;
+    if (!ret) return ret;
+    return iseq_setup(iseq, anchor);
 }
 
 #define CHECK_ARRAY(v)   rb_convert_type((v), T_ARRAY, "Array", "to_ary")
-#define CHECK_STRING(v)  rb_convert_type((v), T_STRING, "String", "to_str")
 #define CHECK_SYMBOL(v)  rb_convert_type((v), T_SYMBOL, "Symbol", "to_sym")
-static inline VALUE CHECK_INTEGER(VALUE v) {(void)NUM2LONG(v); return v;}
 
-VALUE
-rb_iseq_build_from_ary(rb_iseq_t *iseq, VALUE locals, VALUE args,
+static int
+int_param(int *dst, VALUE param, VALUE sym)
+{
+    VALUE val = rb_hash_aref(param, sym);
+    switch (TYPE(val)) {
+      case T_NIL:
+	return FALSE;
+      case T_FIXNUM:
+	*dst = FIX2INT(val);
+	return TRUE;
+      default:
+	rb_raise(rb_eTypeError, "invalid %+"PRIsVALUE" Fixnum: %+"PRIsVALUE,
+		 sym, val);
+    }
+    return FALSE;
+}
+
+static const struct rb_iseq_param_keyword *
+iseq_build_kw(rb_iseq_t *iseq, VALUE params, VALUE keywords)
+{
+    int i, j;
+    int len = RARRAY_LENINT(keywords);
+    int default_len;
+    VALUE key, sym, default_val;
+    VALUE *dvs;
+    ID *ids;
+    struct rb_iseq_param_keyword *keyword = ZALLOC(struct rb_iseq_param_keyword);
+
+    iseq->body->param.flags.has_kw = TRUE;
+
+    keyword->num = len;
+#define SYM(s) ID2SYM(rb_intern(#s))
+    (void)int_param(&keyword->bits_start, params, SYM(kwbits));
+    i = keyword->bits_start - keyword->num;
+    ids = (VALUE *)&iseq->body->local_table[i];
+#undef SYM
+
+    /* required args */
+    for (i = 0; i < len; i++) {
+	VALUE val = RARRAY_AREF(keywords, i);
+
+	if (!SYMBOL_P(val)) {
+	    goto default_values;
+	}
+	ids[i] = SYM2ID(val);
+	keyword->required_num++;
+    }
+
+  default_values: /* note: we intentionally preserve `i' from previous loop */
+    default_len = len - i;
+    if (default_len == 0) {
+	return keyword;
+    }
+
+    dvs = ALLOC_N(VALUE, default_len);
+
+    for (j = 0; i < len; i++, j++) {
+	key = RARRAY_AREF(keywords, i);
+	CHECK_ARRAY(key);
+
+	switch (RARRAY_LEN(key)) {
+	  case 1:
+	    sym = RARRAY_AREF(key, 0);
+	    default_val = Qundef;
+	    break;
+	  case 2:
+	    sym = RARRAY_AREF(key, 0);
+	    default_val = RARRAY_AREF(key, 1);
+	    break;
+	  default:
+	    rb_raise(rb_eTypeError, "keyword default has unsupported len %+"PRIsVALUE, key);
+	}
+	ids[i] = SYM2ID(sym);
+	dvs[j] = default_val;
+    }
+
+    keyword->table = ids;
+    keyword->default_values = dvs;
+
+    return keyword;
+}
+
+void
+rb_iseq_build_from_ary(rb_iseq_t *iseq, VALUE misc, VALUE locals, VALUE params,
 			 VALUE exception, VALUE body)
 {
-    int i;
+#define SYM(s) ID2SYM(rb_intern(#s))
+    int i, len;
     ID *tbl;
     struct st_table *labels_table = st_init_numtable();
+    VALUE labels_wrapper = Data_Wrap_Struct(0, 0, st_free_table, labels_table);
+    VALUE arg_opt_labels = rb_hash_aref(params, SYM(opt));
+    VALUE keywords = rb_hash_aref(params, SYM(keyword));
+    VALUE sym_arg_rest = ID2SYM(rb_intern("#arg_rest"));
     DECL_ANCHOR(anchor);
     INIT_ANCHOR(anchor);
 
-    iseq->local_table_size = RARRAY_LENINT(locals);
-    iseq->local_table = tbl = (ID *)ALLOC_N(ID, iseq->local_table_size);
-    iseq->local_size = iseq->local_table_size + 1;
+    len = RARRAY_LENINT(locals);
+    iseq->body->local_table_size = len;
+    iseq->body->local_table = tbl = len > 0 ? (ID *)ALLOC_N(ID, iseq->body->local_table_size) : NULL;
+    iseq->body->local_size = iseq->body->local_table_size + 1;
 
-    for (i=0; i<RARRAY_LEN(locals); i++) {
-	VALUE lv = RARRAY_PTR(locals)[i];
-	tbl[i] = FIXNUM_P(lv) ? (ID)FIX2LONG(lv) : SYM2ID(CHECK_SYMBOL(lv));
-    }
+    for (i = 0; i < len; i++) {
+	VALUE lv = RARRAY_AREF(locals, i);
 
-    /* args */
-    if (FIXNUM_P(args)) {
-	iseq->arg_size = iseq->argc = FIX2INT(args);
-	iseq->arg_simple = 1;
-    }
-    else {
-	int i = 0;
-	VALUE argc = CHECK_INTEGER(rb_ary_entry(args, i++));
-	VALUE arg_opt_labels = CHECK_ARRAY(rb_ary_entry(args, i++));
-	VALUE arg_post_len = CHECK_INTEGER(rb_ary_entry(args, i++));
-	VALUE arg_post_start = CHECK_INTEGER(rb_ary_entry(args, i++));
-	VALUE arg_rest = CHECK_INTEGER(rb_ary_entry(args, i++));
-	VALUE arg_block = CHECK_INTEGER(rb_ary_entry(args, i++));
-	VALUE arg_simple = CHECK_INTEGER(rb_ary_entry(args, i++));
-
-	iseq->argc = FIX2INT(argc);
-	iseq->arg_rest = FIX2INT(arg_rest);
-	iseq->arg_post_len = FIX2INT(arg_post_len);
-	iseq->arg_post_start = FIX2INT(arg_post_start);
-	iseq->arg_block = FIX2INT(arg_block);
-	iseq->arg_opts = RARRAY_LENINT(arg_opt_labels);
-	iseq->arg_opt_table = (VALUE *)ALLOC_N(VALUE, iseq->arg_opts);
-
-	if (iseq->arg_block != -1) {
-	    iseq->arg_size = iseq->arg_block + 1;
-	}
-	else if (iseq->arg_post_len) {
-	    iseq->arg_size = iseq->arg_post_start + iseq->arg_post_len;
-	}
-	else if (iseq->arg_rest != -1) {
-	    iseq->arg_size = iseq->arg_rest + 1;
+	if (sym_arg_rest == lv) {
+	    tbl[i] = 0;
 	}
 	else {
-	    iseq->arg_size = iseq->argc + (iseq->arg_opts ? iseq->arg_opts - 1 : 0);
+	    tbl[i] = FIXNUM_P(lv) ? (ID)FIX2LONG(lv) : SYM2ID(CHECK_SYMBOL(lv));
 	}
+    }
 
-	for (i=0; i<RARRAY_LEN(arg_opt_labels); i++) {
-	    iseq->arg_opt_table[i] =
-	      (VALUE)register_label(iseq, labels_table,
-				    rb_ary_entry(arg_opt_labels, i));
+    /*
+     * we currently ignore misc params,
+     * local_size, stack_size and param.size are all calculated
+     */
+
+#define INT_PARAM(F) int_param(&iseq->body->param.F, params, SYM(F))
+    if (INT_PARAM(lead_num)) {
+	iseq->body->param.flags.has_lead = TRUE;
+    }
+    if (INT_PARAM(post_num)) iseq->body->param.flags.has_post = TRUE;
+    if (INT_PARAM(post_start)) iseq->body->param.flags.has_post = TRUE;
+    if (INT_PARAM(rest_start)) iseq->body->param.flags.has_rest = TRUE;
+    if (INT_PARAM(block_start)) iseq->body->param.flags.has_block = TRUE;
+#undef INT_PARAM
+
+    switch (TYPE(arg_opt_labels)) {
+      case T_ARRAY:
+	len = RARRAY_LENINT(arg_opt_labels);
+	iseq->body->param.flags.has_opt = !!(len - 1 >= 0);
+
+	if (iseq->body->param.flags.has_opt) {
+	    VALUE *opt_table = ALLOC_N(VALUE, len);
+
+	    for (i = 0; i < len; i++) {
+		VALUE ent = RARRAY_AREF(arg_opt_labels, i);
+		LABEL *label = register_label(iseq, labels_table, ent);
+		opt_table[i] = (VALUE)label;
+	    }
+
+	    iseq->body->param.opt_num = len - 1;
+	    iseq->body->param.opt_table = opt_table;
 	}
+      case T_NIL:
+	break;
+      default:
+	rb_raise(rb_eTypeError, ":opt param is not an array: %+"PRIsVALUE,
+		 arg_opt_labels);
+    }
 
-	iseq->arg_simple = NUM2INT(arg_simple);
+    switch (TYPE(keywords)) {
+      case T_ARRAY:
+	iseq->body->param.keyword = iseq_build_kw(iseq, params, keywords);
+      case T_NIL:
+	break;
+      default:
+	rb_raise(rb_eTypeError, ":keywords param is not an array: %+"PRIsVALUE,
+		 keywords);
     }
 
+    if (Qtrue == rb_hash_aref(params, SYM(ambiguous_param0))) {
+	iseq->body->param.flags.ambiguous_param0 = TRUE;
+    }
+
+    if (int_param(&i, params, SYM(kwrest))) {
+	struct rb_iseq_param_keyword *keyword = (struct rb_iseq_param_keyword *)iseq->body->param.keyword;
+	if (keyword == NULL) {
+	    iseq->body->param.keyword = keyword = ZALLOC(struct rb_iseq_param_keyword);
+	}
+	keyword->rest_start = i;
+	iseq->body->param.flags.has_kwrest = TRUE;
+    }
+#undef SYM
+    iseq_calc_param_size(iseq);
+
     /* exception */
     iseq_build_from_ary_exception(iseq, labels_table, exception);
 
     /* body */
-    iseq_build_from_ary_body(iseq, anchor, body, labels_table);
-    return iseq->self;
+    iseq_build_from_ary_body(iseq, anchor, body, labels_wrapper);
 }
 
 /* for parser */
@@ -5832,22 +6726,23 @@ int
 rb_dvar_defined(ID id)
 {
     rb_thread_t *th = GET_THREAD();
-    rb_iseq_t *iseq;
+    const rb_iseq_t *iseq;
+
     if (th->base_block && (iseq = th->base_block->iseq)) {
-	while (iseq->type == ISEQ_TYPE_BLOCK ||
-	       iseq->type == ISEQ_TYPE_RESCUE ||
-	       iseq->type == ISEQ_TYPE_ENSURE ||
-	       iseq->type == ISEQ_TYPE_EVAL ||
-	       iseq->type == ISEQ_TYPE_MAIN
+	while (iseq->body->type == ISEQ_TYPE_BLOCK ||
+	       iseq->body->type == ISEQ_TYPE_RESCUE ||
+	       iseq->body->type == ISEQ_TYPE_ENSURE ||
+	       iseq->body->type == ISEQ_TYPE_EVAL ||
+	       iseq->body->type == ISEQ_TYPE_MAIN
 	       ) {
-	    int i;
+	    unsigned int i;
 
-	    for (i = 0; i < iseq->local_table_size; i++) {
-		if (iseq->local_table[i] == id) {
+	    for (i = 0; i < iseq->body->local_table_size; i++) {
+		if (iseq->body->local_table[i] == id) {
 		    return 1;
 		}
 	    }
-	    iseq = iseq->parent_iseq;
+	    iseq = iseq->body->parent_iseq;
 	}
     }
     return 0;
@@ -5857,14 +6752,14 @@ int
 rb_local_defined(ID id)
 {
     rb_thread_t *th = GET_THREAD();
-    rb_iseq_t *iseq;
+    const rb_iseq_t *iseq;
 
     if (th->base_block && th->base_block->iseq) {
-	int i;
-	iseq = th->base_block->iseq->local_iseq;
+	unsigned int i;
+	iseq = th->base_block->iseq->body->local_iseq;
 
-	for (i=0; i<iseq->local_table_size; i++) {
-	    if (iseq->local_table[i] == id) {
+	for (i=0; i<iseq->body->local_table_size; i++) {
+	    if (iseq->body->local_table[i] == id) {
 		return 1;
 	    }
 	}
@@ -5883,3 +6778,1595 @@ rb_parse_in_main(void)
 {
     return GET_THREAD()->parse_in_eval < 0;
 }
+
+static int
+caller_location(VALUE *path, VALUE *absolute_path)
+{
+    const rb_thread_t *const th = GET_THREAD();
+    const rb_control_frame_t *const cfp =
+	rb_vm_get_ruby_level_next_cfp(th, th->cfp);
+
+    if (cfp) {
+	int line = rb_vm_get_sourceline(cfp);
+	*path = cfp->iseq->body->location.path;
+	*absolute_path = cfp->iseq->body->location.absolute_path;
+	return line;
+    }
+    else {
+	*path = rb_str_new2("<compiled>");
+	*absolute_path = *path;
+	return 1;
+    }
+}
+
+typedef struct {
+    VALUE arg;
+    rb_insn_func_t func;
+    int line;
+} accessor_args;
+
+static const rb_iseq_t *
+method_for_self(VALUE name, VALUE arg, rb_insn_func_t func,
+		VALUE (*build)(rb_iseq_t *, LINK_ANCHOR *, VALUE))
+{
+    VALUE path, absolute_path;
+    accessor_args acc;
+
+    acc.arg = arg;
+    acc.func = func;
+    acc.line = caller_location(&path, &absolute_path);
+    return rb_iseq_new_with_opt((NODE *)IFUNC_NEW(build, (VALUE)&acc, 0),
+				rb_sym2str(name), path, absolute_path,
+				INT2FIX(acc.line), 0, ISEQ_TYPE_METHOD, 0);
+}
+
+static VALUE
+for_self_aref(rb_iseq_t *iseq, LINK_ANCHOR *ret, VALUE a)
+{
+    const accessor_args *const args = (void *)a;
+    const int line = args->line;
+
+    iseq_set_local_table(iseq, 0);
+    iseq->body->param.lead_num = 0;
+    iseq->body->param.size = 0;
+
+    ADD_INSN1(ret, line, putobject, args->arg);
+    ADD_INSN1(ret, line, opt_call_c_function, (VALUE)args->func);
+    return Qnil;
+}
+
+static VALUE
+for_self_aset(rb_iseq_t *iseq, LINK_ANCHOR *ret, VALUE a)
+{
+    const accessor_args *const args = (void *)a;
+    const int line = args->line;
+    static const ID vars[] = {1, idUScore};
+
+    iseq_set_local_table(iseq, vars);
+    iseq->body->param.lead_num = 1;
+    iseq->body->param.size = 1;
+
+    ADD_INSN2(ret, line, getlocal, INT2FIX(numberof(vars)-0), INT2FIX(0));
+    ADD_INSN1(ret, line, putobject, args->arg);
+    ADD_INSN1(ret, line, opt_call_c_function, (VALUE)args->func);
+    ADD_INSN(ret, line, pop);
+    return Qnil;
+}
+
+/*
+ * func (index) -> (value)
+ */
+const rb_iseq_t *
+rb_method_for_self_aref(VALUE name, VALUE arg, rb_insn_func_t func)
+{
+    return method_for_self(name, arg, func, for_self_aref);
+}
+
+/*
+ * func (index, value) -> (index, value)
+ */
+const rb_iseq_t *
+rb_method_for_self_aset(VALUE name, VALUE arg, rb_insn_func_t func)
+{
+    return method_for_self(name, arg, func, for_self_aset);
+}
+
+/* ISeq binary format */
+
+typedef unsigned int ibf_offset_t;
+#define IBF_OFFSET(ptr) ((ibf_offset_t)(VALUE)(ptr))
+
+struct ibf_header {
+    char magic[4]; /* YARB */
+    unsigned int major_version;
+    unsigned int minor_version;
+    unsigned int size;
+    unsigned int extra_size;
+
+    unsigned int iseq_list_size;
+    unsigned int id_list_size;
+    unsigned int object_list_size;
+
+    ibf_offset_t iseq_list_offset;
+    ibf_offset_t id_list_offset;
+    ibf_offset_t object_list_offset;
+};
+
+struct ibf_id_entry {
+    enum {
+	ibf_id_enc_ascii,
+	ibf_id_enc_utf8,
+	ibf_id_enc_other
+    } enc : 2;
+    char body[1];
+};
+
+struct ibf_dump {
+    VALUE str;
+    VALUE iseq_list;      /* [iseq0 offset, ...] */
+    VALUE obj_list;       /* [objs] */
+    st_table *iseq_table; /* iseq -> iseq number */
+    st_table *id_table;   /* id -> id number */
+};
+
+rb_iseq_t * iseq_alloc(void);
+
+struct ibf_load {
+    const char *buff;
+    const struct ibf_header *header;
+    ID *id_list;     /* [id0, ...] */
+    VALUE iseq_list; /* [iseq0, ...] */
+    VALUE obj_list;  /* [obj0, ...] */
+    VALUE loader_obj;
+    VALUE str;
+    rb_iseq_t *iseq;
+};
+
+static ibf_offset_t
+ibf_dump_pos(struct ibf_dump *dump)
+{
+    return (unsigned int)rb_str_strlen(dump->str);
+}
+
+static ibf_offset_t
+ibf_dump_write(struct ibf_dump *dump, const void *buff, unsigned long size)
+{
+    ibf_offset_t pos = ibf_dump_pos(dump);
+    rb_str_cat(dump->str, (const char *)buff, size);
+    /* TODO: overflow check */
+    return pos;
+}
+
+static void
+ibf_dump_overwrite(struct ibf_dump *dump, void *buff, unsigned int size, long offset)
+{
+    VALUE str = dump->str;
+    char *ptr = RSTRING_PTR(str);
+    if ((unsigned long)(size + offset) > (unsigned long)RSTRING_LEN(str))
+	rb_bug("ibf_dump_overwrite: overflow");
+    memcpy(ptr + offset, buff, size);
+}
+
+static void *
+ibf_load_alloc(const struct ibf_load *load, ibf_offset_t offset, int size)
+{
+    void *buff = ruby_xmalloc(size);
+    memcpy(buff, load->buff + offset, size);
+    return buff;
+}
+
+#define IBF_W(b, type, n) (type *)(VALUE)ibf_dump_write(dump, (b), sizeof(type) * (n))
+#define IBF_WV(variable)   ibf_dump_write(dump, &(variable), sizeof(variable))
+#define IBF_WP(b, type, n) ibf_dump_write(dump, (b), sizeof(type) * (n))
+#define IBF_R(val, type, n) (type *)ibf_load_alloc(load, IBF_OFFSET(val), sizeof(type) * (n))
+
+static int
+ibf_table_lookup(struct st_table *table, st_data_t key)
+{
+    st_data_t val;
+
+    if (st_lookup(table, key, &val)) {
+	return (int)val;
+    }
+    else {
+	return -1;
+    }
+}
+
+static int
+ibf_table_index(struct st_table *table, st_data_t key)
+{
+    int index = ibf_table_lookup(table, key);
+
+    if (index < 0) { /* not found */
+	index = (int)table->num_entries;
+	st_insert(table, key, (st_data_t)index);
+    }
+
+    return index;
+}
+
+/* dump/load generic */
+
+static VALUE ibf_load_object(const struct ibf_load *load, VALUE object_index);
+static rb_iseq_t *ibf_load_iseq(const struct ibf_load *load, const rb_iseq_t *index_iseq);
+
+static VALUE
+ibf_dump_object(struct ibf_dump *dump, VALUE obj)
+{
+    long index = RARRAY_LEN(dump->obj_list);
+    long i;
+    for (i=0; i<index; i++) {
+	if (RARRAY_AREF(dump->obj_list, i) == obj) return (VALUE)i; /* dedup */
+    }
+    rb_ary_push(dump->obj_list, obj);
+    return (VALUE)index;
+}
+
+static VALUE
+ibf_dump_id(struct ibf_dump *dump, ID id)
+{
+    return (VALUE)ibf_table_index(dump->id_table, (st_data_t)id);
+}
+
+static ID
+ibf_load_id(const struct ibf_load *load, const ID id_index)
+{
+    ID id;
+
+    if (id_index == 0) {
+	id = 0;
+    }
+    else {
+	id = load->id_list[(long)id_index];
+
+	if (id == 0) {
+	    long *indices = (long *)(load->buff + load->header->id_list_offset);
+	    VALUE str = ibf_load_object(load, indices[id_index]);
+	    id = NIL_P(str) ? 0 : rb_intern_str(str); /* str == nil -> internal junk id */
+	    load->id_list[(long)id_index] = id;
+	}
+    }
+
+    return id;
+}
+
+/* dump/load: code */
+
+static VALUE
+ibf_dump_callinfo(struct ibf_dump *dump, const struct rb_call_info *ci)
+{
+    return (ci->flag & VM_CALL_KWARG) ? Qtrue : Qfalse;
+}
+
+static ibf_offset_t ibf_dump_iseq_each(struct ibf_dump *dump, const rb_iseq_t *iseq);
+
+static rb_iseq_t *
+ibf_dump_iseq(struct ibf_dump *dump, const rb_iseq_t *iseq)
+{
+    if (iseq == NULL) {
+	return (rb_iseq_t *)-1;
+    }
+    else {
+	int iseq_index = ibf_table_lookup(dump->iseq_table, (st_data_t)iseq);
+	if (iseq_index < 0) {
+	    iseq_index = ibf_table_index(dump->iseq_table, (st_data_t)iseq);
+	    rb_ary_store(dump->iseq_list, iseq_index, LONG2NUM(ibf_dump_iseq_each(dump, rb_iseq_check(iseq))));
+	}
+	return (rb_iseq_t *)(VALUE)iseq_index;
+    }
+}
+
+static VALUE
+ibf_dump_gentry(struct ibf_dump *dump, const struct rb_global_entry *entry)
+{
+    return (VALUE)ibf_dump_id(dump, entry->id);
+}
+
+static VALUE
+ibf_load_gentry(const struct ibf_load *load, const struct rb_global_entry *entry)
+{
+    ID gid = ibf_load_id(load, (ID)(VALUE)entry);
+    return (VALUE)rb_global_entry(gid);
+}
+
+static VALUE *
+ibf_dump_code(struct ibf_dump *dump, const rb_iseq_t *iseq)
+{
+    const int iseq_size = iseq->body->iseq_size;
+    int code_index;
+    VALUE *code;
+    const VALUE *orig_code = rb_iseq_original_iseq(iseq);
+
+    code = ALLOCA_N(VALUE, iseq_size);
+
+    for (code_index=0; code_index<iseq_size;) {
+	const VALUE insn = orig_code[code_index];
+	const char *types = insn_op_types(insn);
+	int op_index;
+
+	code[code_index++] = (VALUE)insn;
+
+	for (op_index=0; types[op_index]; op_index++, code_index++) {
+	    VALUE op = orig_code[code_index];
+	    switch (types[op_index]) {
+	      case TS_CDHASH:
+	      case TS_VALUE:
+		code[code_index] = ibf_dump_object(dump, op);
+		break;
+	      case TS_ISEQ:
+		code[code_index] = (VALUE)ibf_dump_iseq(dump, (const rb_iseq_t *)op);
+		break;
+	      case TS_IC:
+		{
+		    unsigned int i;
+		    for (i=0; i<iseq->body->is_size; i++) {
+			if (op == (VALUE)&iseq->body->is_entries[i]) {
+			    break;
+			}
+		    }
+		    code[code_index] = i;
+		}
+		break;
+	      case TS_CALLINFO:
+		code[code_index] = ibf_dump_callinfo(dump, (const struct rb_call_info *)op);
+		break;
+	      case TS_CALLCACHE:
+		code[code_index] = 0;
+		break;
+	      case TS_ID:
+		code[code_index] = ibf_dump_id(dump, (ID)op);
+		break;
+	      case TS_GENTRY:
+		code[code_index] = ibf_dump_gentry(dump, (const struct rb_global_entry *)op);
+		break;
+	      case TS_FUNCPTR:
+		rb_raise(rb_eRuntimeError, "TS_FUNCPTR is not supported");
+		break;
+	      default:
+		code[code_index] = op;
+		break;
+	    }
+	}
+	assert(insn_len(insn) == op_index+1);
+    }
+
+    return IBF_W(code, VALUE, iseq_size);
+}
+
+static VALUE *
+ibf_load_code(const struct ibf_load *load, const rb_iseq_t *iseq, const struct rb_iseq_constant_body *body)
+{
+    const int iseq_size = body->iseq_size;
+    int code_index;
+    VALUE *code = IBF_R(body->iseq_encoded, VALUE, iseq_size);
+
+    struct rb_call_info *ci_entries = iseq->body->ci_entries;
+    struct rb_call_info_with_kwarg *ci_kw_entries = (struct rb_call_info_with_kwarg *)&iseq->body->ci_entries[iseq->body->ci_size];
+    struct rb_call_cache *cc_entries = iseq->body->cc_entries;
+    union iseq_inline_storage_entry *is_entries = iseq->body->is_entries;
+
+    for (code_index=0; code_index<iseq_size;) {
+	const VALUE insn = code[code_index++];
+	const char *types = insn_op_types(insn);
+	int op_index;
+
+	for (op_index=0; types[op_index]; op_index++, code_index++) {
+	    VALUE op = code[code_index];
+
+	    switch (types[op_index]) {
+	      case TS_CDHASH:
+	      case TS_VALUE:
+		code[code_index] = ibf_load_object(load, op);
+		break;
+	      case TS_ISEQ:
+		code[code_index] = (VALUE)ibf_load_iseq(load, (const rb_iseq_t *)op);
+		break;
+	      case TS_IC:
+		code[code_index] = (VALUE)&is_entries[(int)op];
+		break;
+	      case TS_CALLINFO:
+		code[code_index] = op ? (VALUE)ci_kw_entries++ : (VALUE)ci_entries++; /* op is Qtrue (kw) or Qfalse (!kw) */
+		break;
+	      case TS_CALLCACHE:
+		code[code_index] = (VALUE)cc_entries++;
+		break;
+	      case TS_ID:
+		code[code_index] = ibf_load_id(load, (ID)op);
+		break;
+	      case TS_GENTRY:
+		code[code_index] = ibf_load_gentry(load, (const struct rb_global_entry *)op);
+		break;
+	      case TS_FUNCPTR:
+		rb_raise(rb_eRuntimeError, "TS_FUNCPTR is not supported");
+		break;
+	      default:
+		/* code[code_index] = op; */
+		break;
+	    }
+	}
+	assert(insn_len(insn) == op_index+1);
+    };
+
+
+    return code;
+}
+
+static VALUE *
+ibf_dump_param_opt_table(struct ibf_dump *dump, const rb_iseq_t *iseq)
+{
+    int opt_num = iseq->body->param.opt_num;
+
+    if (opt_num > 0) {
+	return IBF_W(iseq->body->param.opt_table, VALUE, opt_num + 1);
+    }
+    else {
+	return NULL;
+    }
+}
+
+static VALUE *
+ibf_load_param_opt_table(const struct ibf_load *load, const struct rb_iseq_constant_body *body)
+{
+    int opt_num = body->param.opt_num;
+
+    if (opt_num > 0) {
+	ibf_offset_t offset = IBF_OFFSET(body->param.opt_table);
+	VALUE *table = ALLOC_N(VALUE, opt_num+1);
+	MEMCPY(table, load->buff + offset, VALUE, opt_num+1);
+	return table;
+    }
+    else {
+	return NULL;
+    }
+}
+
+static struct rb_iseq_param_keyword *
+ibf_dump_param_keyword(struct ibf_dump *dump, const rb_iseq_t *iseq)
+{
+    const struct rb_iseq_param_keyword *kw = iseq->body->param.keyword;
+
+    if (kw) {
+	struct rb_iseq_param_keyword dump_kw = *kw;
+	int dv_num = kw->num - kw->required_num;
+	ID *ids = kw->num > 0 ? ALLOCA_N(ID, kw->num) : NULL;
+	VALUE *dvs = dv_num > 0 ? ALLOCA_N(VALUE, dv_num) : NULL;
+	int i;
+
+	for (i=0; i<kw->num; i++) ids[i] = (ID)ibf_dump_id(dump, kw->table[i]);
+	for (i=0; i<dv_num; i++) dvs[i] = (VALUE)ibf_dump_object(dump, kw->default_values[i]);
+
+	dump_kw.table = IBF_W(ids, ID, kw->num);
+	dump_kw.default_values = IBF_W(dvs, VALUE, dv_num);
+	return IBF_W(&dump_kw, struct rb_iseq_param_keyword, 1);
+    }
+    else {
+	return NULL;
+    }
+}
+
+static const struct rb_iseq_param_keyword *
+ibf_load_param_keyword(const struct ibf_load *load, const struct rb_iseq_constant_body *body)
+{
+    if (body->param.keyword) {
+	struct rb_iseq_param_keyword *kw = IBF_R(body->param.keyword, struct rb_iseq_param_keyword, 1);
+	ID *ids = IBF_R(kw->table, ID, kw->num);
+	int dv_num = kw->num - kw->required_num;
+	VALUE *dvs = IBF_R(kw->default_values, VALUE, dv_num);
+	int i;
+
+	for (i=0; i<kw->num; i++) {
+	    ids[i] = ibf_load_id(load, ids[i]);
+	}
+	for (i=0; i<dv_num; i++) {
+	    dvs[i] = ibf_load_object(load, dvs[i]);
+	}
+
+	kw->table = ids;
+	kw->default_values = dvs;
+	return kw;
+    }
+    else {
+	return NULL;
+    }
+}
+
+static struct iseq_line_info_entry *
+ibf_dump_line_info_table(struct ibf_dump *dump, const rb_iseq_t *iseq)
+{
+    return IBF_W(iseq->body->line_info_table, struct iseq_line_info_entry, iseq->body->line_info_size);
+}
+
+static struct iseq_line_info_entry *
+ibf_load_line_info_table(const struct ibf_load *load, const struct rb_iseq_constant_body *body)
+{
+    return IBF_R(body->line_info_table, struct iseq_line_info_entry, body->line_info_size);
+}
+
+static ID *
+ibf_dump_local_table(struct ibf_dump *dump, const rb_iseq_t *iseq)
+{
+    const int size = iseq->body->local_size - 1;
+    ID *table = ALLOCA_N(ID, size);
+    int i;
+
+    for (i=0; i<size; i++) {
+	table[i] = ibf_dump_id(dump, iseq->body->local_table[i]);
+    }
+
+    return IBF_W(table, ID, size);
+}
+
+static ID *
+ibf_load_local_table(const struct ibf_load *load, const struct rb_iseq_constant_body *body)
+{
+    const int size = body->local_size - 1;
+
+    if (size > 0) {
+	ID *table = IBF_R(body->local_table, ID, size);
+	int i;
+
+	for (i=0; i<size; i++) {
+	    table[i] = ibf_load_id(load, table[i]);
+	}
+	return table;
+    }
+    else {
+	return NULL;
+    }
+}
+
+static struct iseq_catch_table *
+ibf_dump_catch_table(struct ibf_dump *dump, const rb_iseq_t *iseq)
+{
+    const struct iseq_catch_table *table = iseq->body->catch_table;
+
+    if (table) {
+	int byte_size = iseq_catch_table_bytes(iseq->body->catch_table->size);
+	struct iseq_catch_table *dump_table = (struct iseq_catch_table *)ALLOCA_N(char, byte_size);
+	unsigned int i;
+	dump_table->size = table->size;
+	for (i=0; i<table->size; i++) {
+	    dump_table->entries[i] = table->entries[i];
+	    dump_table->entries[i].iseq = ibf_dump_iseq(dump, table->entries[i].iseq);
+	}
+	return (struct iseq_catch_table *)(VALUE)ibf_dump_write(dump, dump_table, byte_size);
+    }
+    else {
+	return NULL;
+    }
+}
+
+static struct iseq_catch_table *
+ibf_load_catch_table(const struct ibf_load *load, const struct rb_iseq_constant_body *body)
+{
+    if (body->catch_table) {
+	struct iseq_catch_table *table;
+	unsigned int i;
+	unsigned int size;
+	size = *(unsigned int *)(load->buff + IBF_OFFSET(body->catch_table));
+	table = ibf_load_alloc(load, IBF_OFFSET(body->catch_table), iseq_catch_table_bytes(size));
+	for (i=0; i<size; i++) {
+	    table->entries[i].iseq = ibf_load_iseq(load, table->entries[i].iseq);
+	}
+	return table;
+    }
+    else {
+	return NULL;
+    }
+}
+
+static struct rb_call_info *
+ibf_dump_ci_entries(struct ibf_dump *dump, const rb_iseq_t *iseq)
+{
+    const unsigned int ci_size = iseq->body->ci_size;
+    const unsigned int ci_kw_size = iseq->body->ci_kw_size;
+    const struct rb_call_info *ci_entries = iseq->body->ci_entries;
+    struct rb_call_info *dump_ci_entries;
+    struct rb_call_info_with_kwarg *dump_ci_kw_entries;
+    int byte_size = ci_size * sizeof(struct rb_call_info) +
+                    ci_kw_size * sizeof(struct rb_call_info_with_kwarg);
+    unsigned int i;
+
+    dump_ci_entries = (struct rb_call_info *)ALLOCA_N(char, byte_size);
+    dump_ci_kw_entries = (struct rb_call_info_with_kwarg *)&dump_ci_entries[ci_size];
+    memcpy(dump_ci_entries, ci_entries, byte_size);
+
+    for (i=0; i<ci_size; i++) { /* conver ID for each ci */
+	dump_ci_entries[i].mid = ibf_dump_id(dump, dump_ci_entries[i].mid);
+    }
+    for (i=0; i<ci_kw_size; i++) {
+	const struct rb_call_info_kw_arg *kw_arg = dump_ci_kw_entries[i].kw_arg;
+	int j;
+	VALUE *keywords = ALLOCA_N(VALUE, kw_arg->keyword_len);
+	for (j=0; j<kw_arg->keyword_len; j++) {
+	    keywords[j] = (VALUE)ibf_dump_object(dump, kw_arg->keywords[j]); /* kw_arg->keywords[n] is Symbol */
+	}
+	dump_ci_kw_entries[i].kw_arg = (struct rb_call_info_kw_arg *)(VALUE)ibf_dump_write(dump, &kw_arg->keyword_len, sizeof(int));
+	ibf_dump_write(dump, keywords, sizeof(VALUE) * kw_arg->keyword_len);
+
+	dump_ci_kw_entries[i].ci.mid = ibf_dump_id(dump, dump_ci_kw_entries[i].ci.mid);
+    }
+    return (struct rb_call_info *)(VALUE)ibf_dump_write(dump, dump_ci_entries, byte_size);
+}
+
+static struct rb_call_info *
+ibf_load_ci_entries(const struct ibf_load *load, const struct rb_iseq_constant_body *body)
+{
+    unsigned int i;
+    const unsigned int ci_size = body->ci_size;
+    const unsigned int ci_kw_size = body->ci_kw_size;
+    struct rb_call_info *ci_entries = ibf_load_alloc(load, IBF_OFFSET(body->ci_entries),
+						     sizeof(struct rb_call_info) * body->ci_size +
+						     sizeof(struct rb_call_info_with_kwarg) * body->ci_kw_size);
+    struct rb_call_info_with_kwarg *ci_kw_entries = (struct rb_call_info_with_kwarg *)&ci_entries[ci_size];
+
+    for (i=0; i<ci_size; i++) {
+	ci_entries[i].mid = ibf_load_id(load, ci_entries[i].mid);
+    }
+    for (i=0; i<ci_kw_size; i++) {
+	int j;
+	ibf_offset_t kw_arg_offset = IBF_OFFSET(ci_kw_entries[i].kw_arg);
+	const int keyword_len = *(int *)(load->buff + kw_arg_offset);
+	const VALUE *keywords = (VALUE *)(load->buff + kw_arg_offset + sizeof(int));
+	struct rb_call_info_kw_arg *kw_arg = ruby_xmalloc(sizeof(struct rb_call_info_kw_arg) + sizeof(VALUE) * (keyword_len - 1));
+	kw_arg->keyword_len = keyword_len;
+	for (j=0; j<kw_arg->keyword_len; j++) {
+	    kw_arg->keywords[j] = (VALUE)ibf_load_object(load, keywords[j]);
+	}
+	ci_kw_entries[i].kw_arg = kw_arg;
+	ci_kw_entries[i].ci.mid = ibf_load_id(load, ci_kw_entries[i].ci.mid);
+    }
+
+    return ci_entries;
+}
+
+static ibf_offset_t
+ibf_dump_iseq_each(struct ibf_dump *dump, const rb_iseq_t *iseq)
+{
+    struct rb_iseq_constant_body dump_body;
+    dump_body = *iseq->body;
+
+    dump_body.location.path = ibf_dump_object(dump, dump_body.location.path);
+    dump_body.location.absolute_path = ibf_dump_object(dump, dump_body.location.absolute_path);
+    dump_body.location.base_label = ibf_dump_object(dump, dump_body.location.base_label);
+    dump_body.location.label = ibf_dump_object(dump, dump_body.location.label);
+
+    dump_body.iseq_encoded =    ibf_dump_code(dump, iseq);
+    dump_body.param.opt_table = ibf_dump_param_opt_table(dump, iseq);
+    dump_body.param.keyword =   ibf_dump_param_keyword(dump, iseq);
+    dump_body.line_info_table = ibf_dump_line_info_table(dump, iseq);
+    dump_body.local_table =     ibf_dump_local_table(dump, iseq);
+    dump_body.catch_table =     ibf_dump_catch_table(dump, iseq);
+    dump_body.parent_iseq =     ibf_dump_iseq(dump, iseq->body->parent_iseq);
+    dump_body.local_iseq =      ibf_dump_iseq(dump, iseq->body->local_iseq);
+    dump_body.is_entries =      NULL;
+    dump_body.ci_entries =      ibf_dump_ci_entries(dump, iseq);
+    dump_body.cc_entries =      NULL;
+    dump_body.mark_ary =        ISEQ_FLIP_CNT(iseq);
+
+    return ibf_dump_write(dump, &dump_body, sizeof(dump_body));
+}
+
+static VALUE
+ibf_load_location_str(const struct ibf_load *load, VALUE str_index)
+{
+    VALUE str = ibf_load_object(load, str_index);
+    if (str != Qnil) {
+	str = rb_fstring(str);
+    }
+    return str;
+}
+
+static void
+ibf_load_iseq_each(const struct ibf_load *load, rb_iseq_t *iseq, ibf_offset_t offset)
+{
+    struct rb_iseq_constant_body *load_body = iseq->body = ZALLOC(struct rb_iseq_constant_body);
+    const struct rb_iseq_constant_body *body = (struct rb_iseq_constant_body *)(load->buff + offset);
+
+    /* memcpy(load_body, load->buff + offset, sizeof(*load_body)); */
+    load_body->type = body->type;
+    load_body->stack_max = body->stack_max;
+    load_body->local_size = body->local_size;
+    load_body->iseq_size = body->iseq_size;
+    load_body->param = body->param;
+    load_body->local_table_size = body->local_table_size;
+    load_body->is_size = body->is_size;
+    load_body->ci_size = body->ci_size;
+    load_body->ci_kw_size = body->ci_kw_size;
+    load_body->line_info_size = body->line_info_size;
+
+    RB_OBJ_WRITE(iseq, &load_body->mark_ary, iseq_mark_ary_create((int)body->mark_ary));
+
+    RB_OBJ_WRITE(iseq, &load_body->location.path,          ibf_load_location_str(load, body->location.path));
+    RB_OBJ_WRITE(iseq, &load_body->location.absolute_path, ibf_load_location_str(load, body->location.absolute_path));
+    RB_OBJ_WRITE(iseq, &load_body->location.base_label,    ibf_load_location_str(load, body->location.base_label));
+    RB_OBJ_WRITE(iseq, &load_body->location.label,         ibf_load_location_str(load, body->location.label));
+    load_body->location.first_lineno = body->location.first_lineno;
+
+    load_body->is_entries      = ZALLOC_N(union iseq_inline_storage_entry, body->is_size);
+    load_body->ci_entries      = ibf_load_ci_entries(load, body);
+    load_body->cc_entries      = ZALLOC_N(struct rb_call_cache, body->ci_size + body->ci_kw_size);
+    load_body->param.opt_table = ibf_load_param_opt_table(load, body);
+    load_body->param.keyword   = ibf_load_param_keyword(load, body);
+    load_body->line_info_table = ibf_load_line_info_table(load, body);
+    load_body->local_table     = ibf_load_local_table(load, body);
+    load_body->catch_table     = ibf_load_catch_table(load, body);
+    load_body->parent_iseq     = ibf_load_iseq(load, body->parent_iseq);
+    load_body->local_iseq      = ibf_load_iseq(load, body->local_iseq);
+
+    load_body->iseq_encoded    = ibf_load_code(load, iseq, body);
+
+    rb_iseq_translate_threaded_code(iseq);
+}
+
+
+static void
+ibf_dump_iseq_list(struct ibf_dump *dump, struct ibf_header *header)
+{
+    const long size = RARRAY_LEN(dump->iseq_list);
+    ibf_offset_t *list = ALLOCA_N(ibf_offset_t, size);
+    long i;
+
+    for (i=0; i<size; i++) {
+	list[i] = (ibf_offset_t)NUM2LONG(rb_ary_entry(dump->iseq_list, i));
+    }
+
+    header->iseq_list_offset = ibf_dump_write(dump, list, sizeof(ibf_offset_t) * size);
+    header->iseq_list_size = (unsigned int)size;
+}
+
+struct ibf_dump_id_list_i_arg {
+    struct ibf_dump *dump;
+    long *list;
+    int current_i;
+};
+
+static int
+ibf_dump_id_list_i(st_data_t key, st_data_t val, st_data_t ptr)
+{
+    struct ibf_dump_id_list_i_arg *arg = (struct ibf_dump_id_list_i_arg *)ptr;
+    int i = (int)val;
+    ID id = (ID)key;
+    assert(arg->current_i == i);
+    arg->current_i++;
+
+    if (rb_id2name(id)) {
+	arg->list[i] = (long)ibf_dump_object(arg->dump, rb_id2str(id));
+    }
+    else {
+	arg->list[i] = 0;
+    }
+
+    return ST_CONTINUE;
+}
+
+static void
+ibf_dump_id_list(struct ibf_dump *dump, struct ibf_header *header)
+{
+    const long size = dump->id_table->num_entries;
+    struct ibf_dump_id_list_i_arg arg;
+    arg.list = ALLOCA_N(long, size);
+    arg.dump = dump;
+    arg.current_i = 0;
+
+    st_foreach(dump->id_table, ibf_dump_id_list_i, (st_data_t)&arg);
+
+    header->id_list_offset = ibf_dump_write(dump, arg.list, sizeof(long) * size);
+    header->id_list_size = (unsigned int)size;
+}
+
+#define IBF_OBJECT_INTERNAL FL_PROMOTED0
+
+/*
+ * Binary format
+ * - ibf_object_header
+ * - ibf_object_xxx (xxx is type)
+ */
+
+struct ibf_object_header {
+    unsigned int type: 5;
+    unsigned int special_const: 1;
+    unsigned int frozen: 1;
+    unsigned int internal: 1;
+};
+
+enum ibf_object_class_index {
+    IBF_OBJECT_CLASS_OBJECT,
+    IBF_OBJECT_CLASS_ARRAY,
+    IBF_OBJECT_CLASS_STANDARD_ERROR
+};
+
+struct ibf_object_string {
+    long encindex;
+    long len;
+    char ptr[1];
+};
+
+struct ibf_object_regexp {
+    long srcstr;
+    char option;
+};
+
+struct ibf_object_array {
+    long len;
+    long ary[1];
+};
+
+struct ibf_object_hash {
+    long len;
+    long keyval[1];
+};
+
+struct ibf_object_struct_range {
+    long class_index;
+    long len;
+    long beg;
+    long end;
+    int excl;
+};
+
+struct ibf_object_bignum {
+    ssize_t slen;
+    BDIGIT digits[1];
+};
+
+enum ibf_object_data_type {
+    IBF_OBJECT_DATA_ENCODING
+};
+
+struct ibf_object_complex_rational {
+    long a, b;
+};
+
+struct ibf_object_symbol {
+    long str;
+};
+
+#define IBF_OBJHEADER(offset)     (struct ibf_object_header *)(load->buff + (offset))
+#define IBF_OBJBODY(type, offset) (type *)(load->buff + sizeof(struct ibf_object_header) + (offset))
+
+static void
+ibf_dump_object_unsupported(struct ibf_dump *dump, VALUE obj)
+{
+    rb_obj_info_dump(obj);
+    rb_bug("ibf_dump_object_unsupported: unsupported");
+}
+
+static VALUE
+ibf_load_object_unsupported(const struct ibf_load *load, const struct ibf_object_header *header, ibf_offset_t offset)
+{
+    rb_bug("unsupported");
+    return Qnil;
+}
+
+static void
+ibf_dump_object_class(struct ibf_dump *dump, VALUE obj)
+{
+    enum ibf_object_class_index cindex;
+    if (obj == rb_cObject) {
+	cindex = IBF_OBJECT_CLASS_OBJECT;
+    }
+    else if (obj == rb_cArray) {
+	cindex = IBF_OBJECT_CLASS_ARRAY;
+    }
+    else if (obj == rb_eStandardError) {
+	cindex = IBF_OBJECT_CLASS_STANDARD_ERROR;
+    }
+    else {
+	rb_obj_info_dump(obj);
+	rb_p(obj);
+	rb_bug("unsupported class");
+    }
+    ibf_dump_write(dump, &cindex, sizeof(cindex));
+}
+
+static VALUE
+ibf_load_object_class(const struct ibf_load *load, const struct ibf_object_header *header, ibf_offset_t offset)
+{
+    enum ibf_object_class_index *cindexp = IBF_OBJBODY(enum ibf_object_class_index, offset);
+    enum ibf_object_class_index cindex = *cindexp;
+
+    switch (cindex) {
+      case IBF_OBJECT_CLASS_OBJECT:
+	return rb_cObject;
+      case IBF_OBJECT_CLASS_ARRAY:
+	return rb_cArray;
+      case IBF_OBJECT_CLASS_STANDARD_ERROR:
+	return rb_eStandardError;
+    }
+
+    rb_bug("ibf_load_object_class: unknown class (%d)", (int)cindex);
+}
+
+
+static void
+ibf_dump_object_float(struct ibf_dump *dump, VALUE obj)
+{
+    double dbl = RFLOAT_VALUE(obj);
+    ibf_dump_write(dump, &dbl, sizeof(dbl));
+}
+
+static VALUE
+ibf_load_object_float(const struct ibf_load *load, const struct ibf_object_header *header, ibf_offset_t offset)
+{
+    double *dblp = IBF_OBJBODY(double, offset);
+    return DBL2NUM(*dblp);
+}
+
+static void
+ibf_dump_object_string(struct ibf_dump *dump, VALUE obj)
+{
+    long encindex = (long)rb_enc_get_index(obj);
+    long len = RSTRING_LEN(obj);
+    const char *ptr = RSTRING_PTR(obj);
+
+    if (encindex > RUBY_ENCINDEX_BUILTIN_MAX) {
+	rb_encoding *enc = rb_enc_from_index((int)encindex);
+	const char *enc_name = rb_enc_name(enc);
+	encindex = RUBY_ENCINDEX_BUILTIN_MAX + ibf_dump_object(dump, rb_str_new2(enc_name));
+    }
+
+    IBF_WV(encindex);
+    IBF_WV(len);
+    IBF_WP(ptr, char, len);
+}
+
+static VALUE
+ibf_load_object_string(const struct ibf_load *load, const struct ibf_object_header *header, ibf_offset_t offset)
+{
+    const struct ibf_object_string *string = IBF_OBJBODY(struct ibf_object_string, offset);
+    VALUE str = rb_str_new(string->ptr, string->len);
+    int encindex = (int)string->encindex;
+
+    if (encindex > RUBY_ENCINDEX_BUILTIN_MAX) {
+	VALUE enc_name_str = ibf_load_object(load, encindex - RUBY_ENCINDEX_BUILTIN_MAX);
+	encindex = rb_enc_find_index(RSTRING_PTR(enc_name_str));
+    }
+    rb_enc_associate_index(str, encindex);
+
+    if (header->internal) rb_obj_hide(str);
+    if (header->frozen)   str = rb_fstring(str);
+
+    return str;
+}
+
+static void
+ibf_dump_object_regexp(struct ibf_dump *dump, VALUE obj)
+{
+    struct ibf_object_regexp regexp;
+    regexp.srcstr = RREGEXP_SRC(obj);
+    regexp.option = (char)rb_reg_options(obj);
+    regexp.srcstr = (long)ibf_dump_object(dump, regexp.srcstr);
+    IBF_WV(regexp);
+}
+
+static VALUE
+ibf_load_object_regexp(const struct ibf_load *load, const struct ibf_object_header *header, ibf_offset_t offset)
+{
+    const struct ibf_object_regexp *regexp = IBF_OBJBODY(struct ibf_object_regexp, offset);
+    VALUE srcstr = ibf_load_object(load, regexp->srcstr);
+    VALUE reg = rb_reg_compile(srcstr, (int)regexp->option, NULL, 0);
+
+    if (header->internal) rb_obj_hide(reg);
+    if (header->frozen)   rb_obj_freeze(reg);
+
+    return reg;
+}
+
+static void
+ibf_dump_object_array(struct ibf_dump *dump, VALUE obj)
+{
+    long i, len = (int)RARRAY_LEN(obj);
+    IBF_WV(len);
+    for (i=0; i<len; i++) {
+	long index = (long)ibf_dump_object(dump, RARRAY_AREF(obj, i));
+	IBF_WV(index);
+    }
+}
+
+static VALUE
+ibf_load_object_array(const struct ibf_load *load, const struct ibf_object_header *header, ibf_offset_t offset)
+{
+    const struct ibf_object_array *array = IBF_OBJBODY(struct ibf_object_array, offset);
+    VALUE ary = rb_ary_new_capa(array->len);
+    int i;
+
+    for (i=0; i<array->len; i++) {
+	rb_ary_push(ary, ibf_load_object(load, array->ary[i]));
+    }
+
+    if (header->internal) rb_obj_hide(ary);
+    if (header->frozen)   rb_obj_freeze(ary);
+
+    return ary;
+}
+
+static int
+ibf_dump_object_hash_i(st_data_t key, st_data_t val, st_data_t ptr)
+{
+    struct ibf_dump *dump = (struct ibf_dump *)ptr;
+    long key_index = (long)ibf_dump_object(dump, (VALUE)key);
+    long val_index = (long)ibf_dump_object(dump, (VALUE)val);
+    IBF_WV(key_index);
+    IBF_WV(val_index);
+    return ST_CONTINUE;
+}
+
+static void
+ibf_dump_object_hash(struct ibf_dump *dump, VALUE obj)
+{
+    long len = RHASH_SIZE(obj);
+    IBF_WV(len);
+    if (len > 0) st_foreach(RHASH(obj)->ntbl, ibf_dump_object_hash_i, (st_data_t)dump);
+}
+
+static VALUE
+ibf_load_object_hash(const struct ibf_load *load, const struct ibf_object_header *header, ibf_offset_t offset)
+{
+    const struct ibf_object_hash *hash = IBF_OBJBODY(struct ibf_object_hash, offset);
+    VALUE obj = rb_hash_new();
+    int i;
+
+    for (i=0; i<hash->len; i++) {
+	VALUE key = ibf_load_object(load, hash->keyval[i*2  ]);
+	VALUE val = ibf_load_object(load, hash->keyval[i*2+1]);
+	rb_hash_aset(obj, key, val);
+    }
+    rb_hash_rehash(obj);
+
+    if (header->internal) rb_obj_hide(obj);
+    if (header->frozen)   rb_obj_freeze(obj);
+
+    return obj;
+}
+
+static void
+ibf_dump_object_struct(struct ibf_dump *dump, VALUE obj)
+{
+    if (rb_obj_is_kind_of(obj, rb_cRange)) {
+	struct ibf_object_struct_range range;
+	VALUE beg, end;
+	range.len = 3;
+	range.class_index = 0;
+
+	rb_range_values(obj, &beg, &end, &range.excl);
+	range.beg = (long)ibf_dump_object(dump, beg);
+	range.end = (long)ibf_dump_object(dump, end);
+
+	IBF_WV(range);
+    }
+    else {
+	rb_bug("ibf_dump_object_struct: unsupported class");
+    }
+}
+
+static VALUE
+ibf_load_object_struct(const struct ibf_load *load, const struct ibf_object_header *header, ibf_offset_t offset)
+{
+    const struct ibf_object_struct_range *range = IBF_OBJBODY(struct ibf_object_struct_range, offset);
+    VALUE beg = ibf_load_object(load, range->beg);
+    VALUE end = ibf_load_object(load, range->end);
+    VALUE obj = rb_range_new(beg, end, range->excl);
+    if (header->internal) rb_obj_hide(obj);
+    if (header->frozen)   rb_obj_freeze(obj);
+    return obj;
+}
+
+static void
+ibf_dump_object_bignum(struct ibf_dump *dump, VALUE obj)
+{
+    ssize_t len = BIGNUM_LEN(obj);
+    ssize_t slen = BIGNUM_SIGN(obj) > 0 ? len : len * -1;
+    BDIGIT *d = BIGNUM_DIGITS(obj);
+
+    IBF_WV(slen);
+    IBF_WP(d, BDIGIT, len);
+}
+
+static VALUE
+ibf_load_object_bignum(const struct ibf_load *load, const struct ibf_object_header *header, ibf_offset_t offset)
+{
+    const struct ibf_object_bignum *bignum = IBF_OBJBODY(struct ibf_object_bignum, offset);
+    int sign = bignum->slen > 0;
+    ssize_t len = sign > 0 ? bignum->slen : -1 * bignum->slen;
+    VALUE obj = rb_integer_unpack(bignum->digits, len * 2, 2, 0,
+				  INTEGER_PACK_LITTLE_ENDIAN | (sign == 0 ? INTEGER_PACK_NEGATIVE : 0));
+    if (header->internal) rb_obj_hide(obj);
+    if (header->frozen)   rb_obj_freeze(obj);
+    return obj;
+}
+
+static void
+ibf_dump_object_data(struct ibf_dump *dump, VALUE obj)
+{
+    if (rb_data_is_encoding(obj)) {
+	rb_encoding *enc = rb_to_encoding(obj);
+	const char *name = rb_enc_name(enc);
+	enum ibf_object_data_type type = IBF_OBJECT_DATA_ENCODING;
+	long len = strlen(name) + 1;
+	IBF_WV(type);
+	IBF_WV(len);
+	IBF_WP(name, char, strlen(name) + 1);
+    }
+    else {
+	ibf_dump_object_unsupported(dump, obj);
+    }
+}
+
+static VALUE
+ibf_load_object_data(const struct ibf_load *load, const struct ibf_object_header *header, ibf_offset_t offset)
+{
+    const enum ibf_object_data_type *typep = IBF_OBJBODY(enum ibf_object_data_type, offset);
+    /* const long *lenp = IBF_OBJBODY(long, offset + sizeof(enum ibf_object_data_type)); */
+    const char *data = IBF_OBJBODY(char, offset + sizeof(enum ibf_object_data_type) + sizeof(long));
+
+    switch (*typep) {
+      case IBF_OBJECT_DATA_ENCODING:
+	{
+	    VALUE encobj = rb_enc_from_encoding(rb_enc_find(data));
+	    return encobj;
+	}
+    }
+
+    return ibf_load_object_unsupported(load, header, offset);
+}
+
+static void
+ibf_dump_object_complex_rational(struct ibf_dump *dump, VALUE obj)
+{
+    long real = (long)ibf_dump_object(dump, RCOMPLEX(obj)->real);
+    long imag = (long)ibf_dump_object(dump, RCOMPLEX(obj)->imag);
+
+    IBF_WV(real);
+    IBF_WV(imag);
+}
+
+static VALUE
+ibf_load_object_complex_rational(const struct ibf_load *load, const struct ibf_object_header *header, ibf_offset_t offset)
+{
+    const struct ibf_object_complex_rational *nums = IBF_OBJBODY(struct ibf_object_complex_rational, offset);
+    VALUE a = ibf_load_object(load, nums->a);
+    VALUE b = ibf_load_object(load, nums->b);
+    VALUE obj = header->type == T_COMPLEX ?
+      rb_complex_new(a, b) : rb_rational_new(a, b);
+
+    if (header->internal) rb_obj_hide(obj);
+    if (header->frozen)   rb_obj_freeze(obj);
+    return obj;
+}
+
+static void
+ibf_dump_object_symbol(struct ibf_dump *dump, VALUE obj)
+{
+    VALUE str = rb_sym2str(obj);
+    long str_index = (long)ibf_dump_object(dump, str);
+    IBF_WV(str_index);
+}
+
+static VALUE
+ibf_load_object_symbol(const struct ibf_load *load, const struct ibf_object_header *header, ibf_offset_t offset)
+{
+    /* const struct ibf_object_header *header = IBF_OBJHEADER(offset); */
+    const struct ibf_object_symbol *symbol = IBF_OBJBODY(struct ibf_object_symbol, offset);
+    VALUE str = ibf_load_object(load, symbol->str);
+    ID id = rb_intern_str(str);
+    return ID2SYM(id);
+}
+
+typedef void (*ibf_dump_object_function)(struct ibf_dump *dump, VALUE obj);
+static ibf_dump_object_function dump_object_functions[RUBY_T_MASK+1] = {
+    ibf_dump_object_unsupported, /* T_NONE */
+    ibf_dump_object_unsupported, /* T_OBJECT */
+    ibf_dump_object_class,       /* T_CLASS */
+    ibf_dump_object_unsupported, /* T_MODULE */
+    ibf_dump_object_float,       /* T_FLOAT */
+    ibf_dump_object_string,      /* T_STRING */
+    ibf_dump_object_regexp,      /* T_REGEXP */
+    ibf_dump_object_array,       /* T_ARRAY */
+    ibf_dump_object_hash,        /* T_HASH */
+    ibf_dump_object_struct,      /* T_STRUCT */
+    ibf_dump_object_bignum,      /* T_BIGNUM */
+    ibf_dump_object_unsupported, /* T_FILE */
+    ibf_dump_object_data,        /* T_DATA */
+    ibf_dump_object_unsupported, /* T_MATCH */
+    ibf_dump_object_complex_rational, /* T_COMPLEX */
+    ibf_dump_object_complex_rational, /* T_RATIONAL */
+    ibf_dump_object_unsupported, /* 0x10 */
+    ibf_dump_object_unsupported, /* 0x11 T_NIL */
+    ibf_dump_object_unsupported, /* 0x12 T_TRUE */
+    ibf_dump_object_unsupported, /* 0x13 T_FALSE */
+    ibf_dump_object_symbol,      /* 0x14 T_SYMBOL */
+    ibf_dump_object_unsupported, /* T_FIXNUM */
+    ibf_dump_object_unsupported, /* T_UNDEF */
+    ibf_dump_object_unsupported, /* 0x17 */
+    ibf_dump_object_unsupported, /* 0x18 */
+    ibf_dump_object_unsupported, /* 0x19 */
+    ibf_dump_object_unsupported, /* T_IMEMO 0x1a */
+    ibf_dump_object_unsupported, /* T_NODE 0x1b */
+    ibf_dump_object_unsupported, /* T_ICLASS 0x1c */
+    ibf_dump_object_unsupported, /* T_ZOMBIE 0x1d */
+    ibf_dump_object_unsupported, /* 0x1e */
+    ibf_dump_object_unsupported  /* 0x1f */
+};
+
+static ibf_offset_t
+lbf_dump_object_object(struct ibf_dump *dump, VALUE obj)
+{
+    struct ibf_object_header obj_header;
+    ibf_offset_t current_offset = ibf_dump_pos(dump);
+    obj_header.type = TYPE(obj);
+
+    if (SPECIAL_CONST_P(obj)) {
+	if (RB_TYPE_P(obj, T_SYMBOL) ||
+	    RB_TYPE_P(obj, T_FLOAT)) {
+	    obj_header.internal = FALSE;
+	    goto dump_object;
+	}
+	obj_header.special_const = TRUE;
+	obj_header.frozen = TRUE;
+	obj_header.internal = TRUE;
+	IBF_WV(obj_header);
+	IBF_WV(obj);
+    }
+    else {
+	obj_header.internal = (RBASIC_CLASS(obj) == 0) ? TRUE : FALSE;
+      dump_object:
+	obj_header.special_const = FALSE;
+	obj_header.frozen = FL_TEST(obj, FL_FREEZE) ? TRUE : FALSE;
+	IBF_WV(obj_header);
+	(*dump_object_functions[obj_header.type])(dump, obj);
+    }
+
+    return current_offset;
+}
+
+typedef VALUE (*ibf_load_object_function)(const struct ibf_load *load, const struct ibf_object_header *header, ibf_offset_t);
+static ibf_load_object_function load_object_functions[RUBY_T_MASK+1] = {
+    ibf_load_object_unsupported, /* T_NONE */
+    ibf_load_object_unsupported, /* T_OBJECT */
+    ibf_load_object_class,       /* T_CLASS */
+    ibf_load_object_unsupported, /* T_MODULE */
+    ibf_load_object_float,       /* T_FLOAT */
+    ibf_load_object_string,      /* T_STRING */
+    ibf_load_object_regexp,      /* T_REGEXP */
+    ibf_load_object_array,       /* T_ARRAY */
+    ibf_load_object_hash,        /* T_HASH */
+    ibf_load_object_struct,      /* T_STRUCT */
+    ibf_load_object_bignum,      /* T_BIGNUM */
+    ibf_load_object_unsupported, /* T_FILE */
+    ibf_load_object_data,        /* T_DATA */
+    ibf_load_object_unsupported, /* T_MATCH */
+    ibf_load_object_complex_rational, /* T_COMPLEX */
+    ibf_load_object_complex_rational, /* T_RATIONAL */
+    ibf_load_object_unsupported, /* 0x10 */
+    ibf_load_object_unsupported, /* T_NIL */
+    ibf_load_object_unsupported, /* T_TRUE */
+    ibf_load_object_unsupported, /* T_FALSE */
+    ibf_load_object_symbol,
+    ibf_load_object_unsupported, /* T_FIXNUM */
+    ibf_load_object_unsupported, /* T_UNDEF */
+    ibf_load_object_unsupported, /* 0x17 */
+    ibf_load_object_unsupported, /* 0x18 */
+    ibf_load_object_unsupported, /* 0x19 */
+    ibf_load_object_unsupported, /* T_IMEMO 0x1a */
+    ibf_load_object_unsupported, /* T_NODE 0x1b */
+    ibf_load_object_unsupported, /* T_ICLASS 0x1c */
+    ibf_load_object_unsupported, /* T_ZOMBIE 0x1d */
+    ibf_load_object_unsupported, /* 0x1e */
+    ibf_load_object_unsupported  /* 0x1f */
+};
+
+static VALUE
+ibf_load_object(const struct ibf_load *load, VALUE object_index)
+{
+    if (object_index == 0) {
+	return Qnil;
+    }
+    else if (object_index >= load->header->object_list_size) {
+	rb_raise(rb_eIndexError, "object index out of range: %"PRIdVALUE, object_index);
+    }
+    else {
+	VALUE obj = rb_ary_entry(load->obj_list, (long)object_index);
+	if (obj == Qnil) { /* TODO: avoid multiple Qnil load */
+	    ibf_offset_t *offsets = (ibf_offset_t *)(load->header->object_list_offset + load->buff);
+	    ibf_offset_t offset = offsets[object_index];
+	    const struct ibf_object_header *header = IBF_OBJHEADER(offset);
+
+	    if (header->special_const) {
+		VALUE *vp = IBF_OBJBODY(VALUE, offset);
+		obj = *vp;
+	    }
+	    else {
+		obj = (*load_object_functions[header->type])(load, header, offset);
+	    }
+
+	    rb_ary_store(load->obj_list, (long)object_index, obj);
+	}
+	iseq_add_mark_object(load->iseq, obj);
+	return obj;
+    }
+}
+
+static void
+ibf_dump_object_list(struct ibf_dump *dump, struct ibf_header *header)
+{
+    VALUE list = rb_ary_tmp_new(RARRAY_LEN(dump->obj_list));
+    int i, size;
+
+    for (i=0; i<RARRAY_LEN(dump->obj_list); i++) {
+	VALUE obj = RARRAY_AREF(dump->obj_list, i);
+	ibf_offset_t offset = lbf_dump_object_object(dump, obj);
+	rb_ary_push(list, UINT2NUM(offset));
+    }
+    size = i;
+    header->object_list_offset = ibf_dump_pos(dump);
+
+    for (i=0; i<size; i++) {
+	ibf_offset_t offset = NUM2UINT(RARRAY_AREF(list, i));
+	IBF_WV(offset);
+    }
+
+    header->object_list_size = size;
+}
+
+static void
+ibf_dump_mark(void *ptr)
+{
+    struct ibf_dump *dump = (struct ibf_dump *)ptr;
+    rb_gc_mark(dump->str);
+    rb_gc_mark(dump->iseq_list);
+    rb_gc_mark(dump->obj_list);
+}
+
+static void
+ibf_dump_free(void *ptr)
+{
+    struct ibf_dump *dump = (struct ibf_dump *)ptr;
+    if (dump->iseq_table) {
+	st_free_table(dump->iseq_table);
+	dump->iseq_table = 0;
+    }
+    if (dump->id_table) {
+	st_free_table(dump->id_table);
+	dump->id_table = 0;
+    }
+    ruby_xfree(dump);
+}
+
+static size_t
+ibf_dump_memsize(const void *ptr)
+{
+    struct ibf_dump *dump = (struct ibf_dump *)ptr;
+    size_t size = sizeof(*dump);
+    if (dump->iseq_table) size += st_memsize(dump->iseq_table);
+    if (dump->id_table) size += st_memsize(dump->id_table);
+    return size;
+}
+
+static const rb_data_type_t ibf_dump_type = {
+    "ibf_dump",
+    {ibf_dump_mark, ibf_dump_free, ibf_dump_memsize,},
+    0, 0, RUBY_TYPED_WB_PROTECTED | RUBY_TYPED_FREE_IMMEDIATELY
+};
+
+static void
+ibf_dump_setup(struct ibf_dump *dump, VALUE dumper_obj)
+{
+    RB_OBJ_WRITE(dumper_obj, &dump->str, rb_str_new(0, 0));
+    RB_OBJ_WRITE(dumper_obj, &dump->iseq_list, rb_ary_tmp_new(0));
+    RB_OBJ_WRITE(dumper_obj, &dump->obj_list, rb_ary_tmp_new(1));
+    rb_ary_push(dump->obj_list, Qnil); /* 0th is nil */
+    dump->iseq_table = st_init_numtable(); /* need free */
+    dump->id_table = st_init_numtable();   /* need free */
+
+    ibf_table_index(dump->id_table, 0); /* id_index:0 is 0 */
+}
+
+VALUE
+iseq_ibf_dump(const rb_iseq_t *iseq, VALUE opt)
+{
+    struct ibf_dump *dump;
+    struct ibf_header header = {{0}};
+    VALUE dump_obj;
+    VALUE str;
+
+    if (iseq->body->parent_iseq != NULL ||
+	iseq->body->local_iseq != iseq) {
+	rb_raise(rb_eRuntimeError, "should be top of iseq");
+    }
+    if (RTEST(ISEQ_COVERAGE(iseq))) {
+	rb_raise(rb_eRuntimeError, "should not compile with coverage");
+    }
+
+    dump_obj = TypedData_Make_Struct(0, struct ibf_dump, &ibf_dump_type, dump);
+    ibf_dump_setup(dump, dump_obj);
+
+    ibf_dump_write(dump, &header, sizeof(header));
+    ibf_dump_write(dump, RUBY_PLATFORM, strlen(RUBY_PLATFORM) + 1);
+    ibf_dump_iseq(dump, iseq);
+
+    header.magic[0] = 'Y'; /* YARB */
+    header.magic[1] = 'A';
+    header.magic[2] = 'R';
+    header.magic[3] = 'B';
+    header.major_version = ISEQ_MAJOR_VERSION;
+    header.minor_version = ISEQ_MINOR_VERSION;
+    ibf_dump_iseq_list(dump, &header);
+    ibf_dump_id_list(dump, &header);
+    ibf_dump_object_list(dump, &header);
+    header.size = ibf_dump_pos(dump);
+
+    if (RTEST(opt)) {
+	VALUE opt_str = opt;
+	const char *ptr = StringValuePtr(opt_str);
+	header.extra_size = RSTRING_LENINT(opt_str);
+	ibf_dump_write(dump, ptr, header.extra_size);
+    }
+    else {
+	header.extra_size = 0;
+    }
+
+    ibf_dump_overwrite(dump, &header, sizeof(header), 0);
+
+    str = dump->str;
+    ibf_dump_free(dump);
+    DATA_PTR(dump_obj) = NULL;
+    RB_GC_GUARD(dump_obj);
+    return str;
+}
+
+static const ibf_offset_t *
+ibf_iseq_list(const struct ibf_load *load)
+{
+    return (ibf_offset_t *)(load->buff + load->header->iseq_list_offset);
+}
+
+void
+ibf_load_iseq_complete(rb_iseq_t *iseq)
+{
+    struct ibf_load *load = RTYPEDDATA_DATA(iseq->aux.loader.obj);
+    rb_iseq_t *prev_src_iseq = load->iseq;
+    load->iseq = iseq;
+    ibf_load_iseq_each(load, iseq, ibf_iseq_list(load)[iseq->aux.loader.index]);
+    ISEQ_COMPILE_DATA(iseq) = NULL;
+    FL_UNSET(iseq, ISEQ_NOT_LOADED_YET);
+    load->iseq = prev_src_iseq;
+}
+
+#if USE_LAZY_LOAD
+const rb_iseq_t *
+rb_iseq_complete(const rb_iseq_t *iseq)
+{
+    ibf_load_iseq_complete((rb_iseq_t *)iseq);
+    return iseq;
+}
+#endif
+
+static rb_iseq_t *
+ibf_load_iseq(const struct ibf_load *load, const rb_iseq_t *index_iseq)
+{
+    int iseq_index = (int)(VALUE)index_iseq;
+
+    if (iseq_index == -1) {
+	return NULL;
+    }
+    else {
+	VALUE iseqv = rb_ary_entry(load->iseq_list, iseq_index);
+
+	if (iseqv != Qnil) {
+	    return (rb_iseq_t *)iseqv;
+	}
+	else {
+	    rb_iseq_t *iseq = iseq_imemo_alloc();
+	    FL_SET(iseq, ISEQ_NOT_LOADED_YET);
+	    iseq->aux.loader.obj = load->loader_obj;
+	    iseq->aux.loader.index = iseq_index;
+	    rb_ary_store(load->iseq_list, iseq_index, (VALUE)iseq);
+
+#if !USE_LAZY_LOAD
+	    ibf_load_iseq_complete(iseq);
+#endif /* !USE_LAZY_LOAD */
+
+	    if (load->iseq) {
+		iseq_add_mark_object(load->iseq, (VALUE)iseq);
+	    }
+	    return iseq;
+	}
+    }
+}
+
+static void
+ibf_load_setup(struct ibf_load *load, VALUE loader_obj, VALUE str)
+{
+    rb_check_safe_obj(str);
+
+    if (RSTRING_LENINT(str) < (int)sizeof(struct ibf_header)) {
+	rb_raise(rb_eRuntimeError, "broken binary format");
+    }
+    RB_OBJ_WRITE(loader_obj, &load->str, str);
+    load->loader_obj = loader_obj;
+    load->buff = StringValuePtr(str);
+    load->header = (struct ibf_header *)load->buff;
+    RB_OBJ_WRITE(loader_obj, &load->iseq_list, rb_ary_tmp_new(0));
+    RB_OBJ_WRITE(loader_obj, &load->obj_list, rb_ary_tmp_new(0));
+    load->id_list = ZALLOC_N(ID, load->header->id_list_size);
+    load->iseq = NULL;
+
+    if (RSTRING_LENINT(str) < (int)load->header->size) {
+	rb_raise(rb_eRuntimeError, "broken binary format");
+    }
+    if (strncmp(load->header->magic, "YARB", 4) != 0) {
+	rb_raise(rb_eRuntimeError, "unknown binary format");
+    }
+    if (load->header->major_version != ISEQ_MAJOR_VERSION ||
+	load->header->minor_version != ISEQ_MINOR_VERSION) {
+	rb_raise(rb_eRuntimeError, "unmatched version file (%u.%u for %u.%u)",
+		 load->header->major_version, load->header->minor_version, ISEQ_MAJOR_VERSION, ISEQ_MINOR_VERSION);
+    }
+    if (strcmp(load->buff + sizeof(struct ibf_header), RUBY_PLATFORM) != 0) {
+	rb_raise(rb_eRuntimeError, "unmatched platform");
+    }
+}
+
+static void
+ibf_loader_mark(void *ptr)
+{
+    if (ptr) {
+	struct ibf_load *load = (struct ibf_load *)ptr;
+	rb_gc_mark(load->str);
+	rb_gc_mark(load->iseq_list);
+	rb_gc_mark(load->obj_list);
+    }
+}
+
+static void
+ibf_loader_free(void *ptr)
+{
+    if (ptr) {
+	struct ibf_load *load = (struct ibf_load *)ptr;
+	ruby_xfree(load->id_list);
+	ruby_xfree(load);
+    }
+}
+
+static size_t
+ibf_loader_memsize(const void *ptr)
+{
+    struct ibf_load *load = (struct ibf_load *)ptr;
+    return sizeof(struct ibf_load) + load->header->id_list_size * sizeof(ID);
+}
+
+static const rb_data_type_t ibf_load_type = {
+    "ibf_loader",
+    {ibf_loader_mark, ibf_loader_free, ibf_loader_memsize,},
+    0, 0, RUBY_TYPED_WB_PROTECTED | RUBY_TYPED_FREE_IMMEDIATELY
+};
+
+const rb_iseq_t *
+iseq_ibf_load(VALUE str)
+{
+    struct ibf_load *load;
+    const rb_iseq_t *iseq;
+    VALUE loader_obj = TypedData_Make_Struct(0, struct ibf_load, &ibf_load_type, load);
+
+    ibf_load_setup(load, loader_obj, str);
+    iseq = ibf_load_iseq(load, 0);
+
+    RB_GC_GUARD(loader_obj);
+    return iseq;
+}
+
+VALUE
+iseq_ibf_load_extra_data(VALUE str)
+{
+    struct ibf_load *load;
+    VALUE loader_obj = TypedData_Make_Struct(0, struct ibf_load, &ibf_load_type, load);
+    VALUE extra_str;
+
+    ibf_load_setup(load, loader_obj, str);
+    extra_str = rb_str_new(load->buff + load->header->size, load->header->extra_size);
+    RB_GC_GUARD(loader_obj);
+    return extra_str;
+}
+
diff --git a/complex.c b/complex.c
index f6f63f6ebd..5199dcc7c2 100644
--- a/complex.c
+++ b/complex.c
@@ -5,9 +5,13 @@
   which is written in ruby.
 */
 
-#include "ruby.h"
-#include "internal.h"
+#include "ruby/config.h"
+#if defined _MSC_VER
+/* Microsoft Visual C does not define M_PI and others by default */
+# define _USE_MATH_DEFINES 1
+#endif
 #include <math.h>
+#include "internal.h"
 
 #define NDEBUG
 #include <assert.h>
@@ -15,13 +19,21 @@
 #define ZERO INT2FIX(0)
 #define ONE INT2FIX(1)
 #define TWO INT2FIX(2)
+#define RFLOAT_0 DBL2NUM(0)
+#if defined(HAVE_SIGNBIT) && defined(__GNUC__) && defined(__sun) && \
+    !defined(signbit)
+extern int signbit(double);
+#endif
 
 VALUE rb_cComplex;
 
-static ID id_abs, id_abs2, id_arg, id_cmp, id_conj, id_convert,
-    id_denominator, id_divmod, id_eqeq_p, id_expt, id_fdiv,  id_floor,
-    id_idiv, id_imag, id_inspect, id_negate, id_numerator, id_quo,
-    id_real, id_real_p, id_to_f, id_to_i, id_to_r, id_to_s,
+static VALUE nucomp_abs(VALUE self);
+static VALUE nucomp_arg(VALUE self);
+
+static ID id_abs, id_arg, id_convert,
+    id_denominator, id_eqeq_p, id_expt, id_fdiv,
+    id_negate, id_numerator, id_quo,
+    id_real_p, id_to_f, id_to_i, id_to_r,
     id_i_real, id_i_imag;
 
 #define f_boolcast(x) ((x) ? Qtrue : Qfalse)
@@ -76,20 +88,6 @@ f_add(VALUE x, VALUE y)
 }
 
 inline static VALUE
-f_cmp(VALUE x, VALUE y)
-{
-    if (FIXNUM_P(x) && FIXNUM_P(y)) {
-	long c = FIX2LONG(x) - FIX2LONG(y);
-	if (c > 0)
-	    c = 1;
-	else if (c < 0)
-	    c = -1;
-	return INT2FIX(c);
-    }
-    return rb_funcall(x, id_cmp, 1, y);
-}
-
-inline static VALUE
 f_div(VALUE x, VALUE y)
 {
     if (FIXNUM_P(y) && FIX2LONG(y) == 1)
@@ -106,16 +104,6 @@ f_gt_p(VALUE x, VALUE y)
 }
 
 inline static VALUE
-f_lt_p(VALUE x, VALUE y)
-{
-    if (FIXNUM_P(x) && FIXNUM_P(y))
-	return f_boolcast(FIX2LONG(x) < FIX2LONG(y));
-    return rb_funcall(x, '<', 1, y);
-}
-
-binop(mod, '%')
-
-inline static VALUE
 f_mul(VALUE x, VALUE y)
 {
 #ifndef PRESERVE_SIGNEDZERO
@@ -152,16 +140,10 @@ f_sub(VALUE x, VALUE y)
 }
 
 fun1(abs)
-fun1(abs2)
 fun1(arg)
-fun1(conj)
 fun1(denominator)
-fun1(floor)
-fun1(imag)
-fun1(inspect)
 fun1(negate)
 fun1(numerator)
-fun1(real)
 fun1(real_p)
 
 inline static VALUE
@@ -180,9 +162,6 @@ f_to_f(VALUE x)
 }
 
 fun1(to_r)
-fun1(to_s)
-
-fun2(divmod)
 
 inline static VALUE
 f_eqeq_p(VALUE x, VALUE y)
@@ -194,7 +173,6 @@ f_eqeq_p(VALUE x, VALUE y)
 
 fun2(expt)
 fun2(fdiv)
-fun2(idiv)
 fun2(quo)
 
 inline static VALUE
@@ -210,17 +188,16 @@ f_negative_p(VALUE x)
 inline static VALUE
 f_zero_p(VALUE x)
 {
-    switch (TYPE(x)) {
-      case T_FIXNUM:
+    if (RB_TYPE_P(x, T_FIXNUM)) {
 	return f_boolcast(FIX2LONG(x) == 0);
-      case T_BIGNUM:
+    }
+    else if (RB_TYPE_P(x, T_BIGNUM)) {
 	return Qfalse;
-      case T_RATIONAL:
-      {
-	  VALUE num = RRATIONAL(x)->num;
+    }
+    else if (RB_TYPE_P(x, T_RATIONAL)) {
+	VALUE num = RRATIONAL(x)->num;
 
-	  return f_boolcast(FIXNUM_P(num) && FIX2LONG(num) == 0);
-      }
+	return f_boolcast(FIXNUM_P(num) && FIX2LONG(num) == 0);
     }
     return rb_funcall(x, id_eqeq_p, 1, ZERO);
 }
@@ -230,19 +207,18 @@ f_zero_p(VALUE x)
 inline static VALUE
 f_one_p(VALUE x)
 {
-    switch (TYPE(x)) {
-      case T_FIXNUM:
+    if (RB_TYPE_P(x, T_FIXNUM)) {
 	return f_boolcast(FIX2LONG(x) == 1);
-      case T_BIGNUM:
+    }
+    else if (RB_TYPE_P(x, T_BIGNUM)) {
 	return Qfalse;
-      case T_RATIONAL:
-      {
-	  VALUE num = RRATIONAL(x)->num;
-	  VALUE den = RRATIONAL(x)->den;
+    }
+    else if (RB_TYPE_P(x, T_RATIONAL)) {
+	VALUE num = RRATIONAL(x)->num;
+	VALUE den = RRATIONAL(x)->den;
 
-	  return f_boolcast(FIXNUM_P(num) && FIX2LONG(num) == 1 &&
-			    FIXNUM_P(den) && FIX2LONG(den) == 1);
-      }
+	return f_boolcast(FIXNUM_P(num) && FIX2LONG(num) == 1 &&
+			  FIXNUM_P(den) && FIX2LONG(den) == 1);
     }
     return rb_funcall(x, id_eqeq_p, 1, ONE);
 }
@@ -260,12 +236,6 @@ k_numeric_p(VALUE x)
 }
 
 inline static VALUE
-k_integer_p(VALUE x)
-{
-    return f_kind_of_p(x, rb_cInteger);
-}
-
-inline static VALUE
 k_fixnum_p(VALUE x)
 {
     return f_kind_of_p(x, rb_cFixnum);
@@ -296,10 +266,8 @@ k_complex_p(VALUE x)
 }
 
 #define k_exact_p(x) (!k_float_p(x))
-#define k_inexact_p(x) k_float_p(x)
 
 #define k_exact_zero_p(x) (k_exact_p(x) && f_zero_p(x))
-#define k_exact_one_p(x) (k_exact_p(x) && f_one_p(x))
 
 #define get_dat1(x) \
     struct RComplex *dat;\
@@ -313,10 +281,10 @@ k_complex_p(VALUE x)
 inline static VALUE
 nucomp_s_new_internal(VALUE klass, VALUE real, VALUE imag)
 {
-    NEWOBJ_OF(obj, struct RComplex, klass, T_COMPLEX);
+    NEWOBJ_OF(obj, struct RComplex, klass, T_COMPLEX | (RGENGC_WB_PROTECTED_COMPLEX ? FL_WB_PROTECTED : 0));
 
-    obj->real = real;
-    obj->imag = imag;
+    RCOMPLEX_SET_REAL(obj, real);
+    RCOMPLEX_SET_IMAG(obj, imag);
 
     return (VALUE)obj;
 }
@@ -378,18 +346,17 @@ nucomp_canonicalization(int f)
 {
     canonicalization = f;
 }
+#else
+#define canonicalization 0
 #endif
 
 inline static void
 nucomp_real_check(VALUE num)
 {
-    switch (TYPE(num)) {
-      case T_FIXNUM:
-      case T_BIGNUM:
-      case T_FLOAT:
-      case T_RATIONAL:
-	break;
-      default:
+    if (!RB_TYPE_P(num, T_FIXNUM) &&
+	!RB_TYPE_P(num, T_BIGNUM) &&
+	!RB_TYPE_P(num, T_FLOAT) &&
+	!RB_TYPE_P(num, T_RATIONAL)) {
 	if (!k_numeric_p(num) || !f_real_p(num))
 	    rb_raise(rb_eTypeError, "not a real");
     }
@@ -462,13 +429,6 @@ nucomp_s_new(int argc, VALUE *argv, VALUE klass)
 }
 
 inline static VALUE
-f_complex_new1(VALUE klass, VALUE x)
-{
-    assert(!k_complex_p(x));
-    return nucomp_s_canonicalize_internal(klass, x, ZERO);
-}
-
-inline static VALUE
 f_complex_new2(VALUE klass, VALUE x, VALUE y)
 {
     assert(!k_complex_p(x));
@@ -483,6 +443,8 @@ f_complex_new2(VALUE klass, VALUE x, VALUE y)
  *
  *    Complex(1, 2)    #=> (1+2i)
  *    Complex('1+2i')  #=> (1+2i)
+ *    Complex(nil)     #=> TypeError
+ *    Complex(1, nil)  #=> TypeError
  *
  * Syntax of string form:
  *
@@ -542,7 +504,6 @@ m_log_bang(VALUE x)
 
 imp1(sin)
 imp1(sinh)
-imp1(sqrt)
 
 static VALUE
 m_cos(VALUE x)
@@ -575,6 +536,8 @@ m_sin(VALUE x)
 }
 
 #if 0
+imp1(sqrt)
+
 static VALUE
 m_sqrt(VALUE x)
 {
@@ -598,11 +561,44 @@ m_sqrt(VALUE x)
 }
 #endif
 
-inline static VALUE
+static VALUE
 f_complex_polar(VALUE klass, VALUE x, VALUE y)
 {
     assert(!k_complex_p(x));
     assert(!k_complex_p(y));
+    if (f_zero_p(x) || f_zero_p(y)) {
+	if (canonicalization) return x;
+	return nucomp_s_new_internal(klass, x, RFLOAT_0);
+    }
+    if (RB_FLOAT_TYPE_P(y)) {
+	const double arg = RFLOAT_VALUE(y);
+	if (arg == M_PI) {
+	    x = f_negate(x);
+	    if (canonicalization) return x;
+	    y = RFLOAT_0;
+	}
+	else if (arg == M_PI_2) {
+	    y = x;
+	    x = RFLOAT_0;
+	}
+	else if (arg == M_PI_2+M_PI) {
+	    y = f_negate(x);
+	    x = RFLOAT_0;
+	}
+	else if (RB_FLOAT_TYPE_P(x)) {
+	    const double abs = RFLOAT_VALUE(x);
+	    const double real = abs * cos(arg), imag = abs * sin(arg);
+	    x = DBL2NUM(real);
+	    if (canonicalization && imag == 0.0) return x;
+	    y = DBL2NUM(imag);
+	}
+	else {
+	    y = f_mul(x, DBL2NUM(sin(arg)));
+	    x = f_mul(x, DBL2NUM(cos(arg)));
+	    if (canonicalization && f_zero_p(y)) return x;
+	}
+	return nucomp_s_new_internal(klass, x, y);
+    }
     return nucomp_s_canonicalize_internal(klass,
 					  f_mul(x, m_cos(y)),
 					  f_mul(x, m_sin(y)));
@@ -627,8 +623,8 @@ nucomp_s_polar(int argc, VALUE *argv, VALUE klass)
     switch (rb_scan_args(argc, argv, "11", &abs, &arg)) {
       case 1:
 	nucomp_real_check(abs);
-	arg = ZERO;
-	break;
+	if (canonicalization) return abs;
+	return nucomp_s_new_internal(klass, abs, ZERO);
       default:
 	nucomp_real_check(abs);
 	nucomp_real_check(arg);
@@ -721,11 +717,12 @@ f_addsub(VALUE self, VALUE other,
  *    Complex(9, 8)  + 4               #=> (13+8i)
  *    Complex(20, 9) + 9.8             #=> (29.8+9i)
  */
-static VALUE
-nucomp_add(VALUE self, VALUE other)
+VALUE
+rb_nucomp_add(VALUE self, VALUE other)
 {
     return f_addsub(self, other, f_add, '+');
 }
+#define nucomp_add rb_nucomp_add
 
 /*
  * call-seq:
@@ -745,6 +742,19 @@ nucomp_sub(VALUE self, VALUE other)
     return f_addsub(self, other, f_sub, '-');
 }
 
+static VALUE
+safe_mul(VALUE a, VALUE b, int az, int bz)
+{
+    double v;
+    if (!az && bz && RB_FLOAT_TYPE_P(a) && (v = RFLOAT_VALUE(a), !isnan(v))) {
+	a = signbit(v) ? DBL2NUM(-1.0) : DBL2NUM(1.0);
+    }
+    if (!bz && az && RB_FLOAT_TYPE_P(b) && (v = RFLOAT_VALUE(b), !isnan(v))) {
+	b = signbit(v) ? DBL2NUM(-1.0) : DBL2NUM(1.0);
+    }
+    return f_mul(a, b);
+}
+
 /*
  * call-seq:
  *    cmp * numeric  ->  complex
@@ -757,18 +767,24 @@ nucomp_sub(VALUE self, VALUE other)
  *    Complex(9, 8)  * 4               #=> (36+32i)
  *    Complex(20, 9) * 9.8             #=> (196.0+88.2i)
  */
-static VALUE
-nucomp_mul(VALUE self, VALUE other)
+VALUE
+rb_nucomp_mul(VALUE self, VALUE other)
 {
     if (k_complex_p(other)) {
 	VALUE real, imag;
+	VALUE areal, aimag, breal, bimag;
+	int arzero, aizero, brzero, bizero;
 
 	get_dat2(self, other);
 
-	real = f_sub(f_mul(adat->real, bdat->real),
-		     f_mul(adat->imag, bdat->imag));
-	imag = f_add(f_mul(adat->real, bdat->imag),
-		     f_mul(adat->imag, bdat->real));
+	arzero = !!f_zero_p(areal = adat->real);
+	aizero = !!f_zero_p(aimag = adat->imag);
+	brzero = !!f_zero_p(breal = bdat->real);
+	bizero = !!f_zero_p(bimag = bdat->imag);
+	real = f_sub(safe_mul(areal, breal, arzero, brzero),
+		     safe_mul(aimag, bimag, aizero, bizero));
+	imag = f_add(safe_mul(areal, bimag, arzero, bizero),
+		     safe_mul(aimag, breal, aizero, brzero));
 
 	return f_complex_new2(CLASS_OF(self), real, imag);
     }
@@ -781,6 +797,7 @@ nucomp_mul(VALUE self, VALUE other)
     }
     return rb_num_coerce_bin(self, other, '*');
 }
+#define nucomp_mul rb_nucomp_mul
 
 inline static VALUE
 f_divide(VALUE self, VALUE other,
@@ -1003,8 +1020,8 @@ nucomp_coerce(VALUE self, VALUE other)
     if (RB_TYPE_P(other, T_COMPLEX))
 	return rb_assoc_new(other, self);
 
-    rb_raise(rb_eTypeError, "%s can't be coerced into %s",
-	     rb_obj_classname(other), rb_obj_classname(self));
+    rb_raise(rb_eTypeError, "%"PRIsVALUE" can't be coerced into %"PRIsVALUE,
+	     rb_obj_class(other), rb_obj_class(self));
     return Qnil;
 }
 
@@ -1238,15 +1255,9 @@ nucomp_eql_p(VALUE self, VALUE other)
 inline static VALUE
 f_signbit(VALUE x)
 {
-#if defined(HAVE_SIGNBIT) && defined(__GNUC__) && defined(__sun) && \
-    !defined(signbit)
-    extern int signbit(double);
-#endif
-    switch (TYPE(x)) {
-      case T_FLOAT: {
+    if (RB_TYPE_P(x, T_FLOAT)) {
 	double f = RFLOAT_VALUE(x);
 	return f_boolcast(!isnan(f) && signbit(f));
-      }
     }
     return f_negative_p(x);
 }
@@ -1292,7 +1303,7 @@ f_format(VALUE self, VALUE (*func)(VALUE))
 static VALUE
 nucomp_to_s(VALUE self)
 {
-    return f_format(self, f_to_s);
+    return f_format(self, rb_String);
 }
 
 /*
@@ -1313,7 +1324,7 @@ nucomp_inspect(VALUE self)
     VALUE s;
 
     s = rb_usascii_str_new2("(");
-    rb_str_concat(s, f_format(self, f_inspect));
+    rb_str_concat(s, f_format(self, rb_inspect));
     rb_str_cat2(s, ")");
 
     return s;
@@ -1332,8 +1343,8 @@ nucomp_loader(VALUE self, VALUE a)
 {
     get_dat1(self);
 
-    dat->real = rb_ivar_get(a, id_i_real);
-    dat->imag = rb_ivar_get(a, id_i_imag);
+    RCOMPLEX_SET_REAL(dat, rb_ivar_get(a, id_i_real));
+    RCOMPLEX_SET_IMAG(dat, rb_ivar_get(a, id_i_imag));
 
     return self;
 }
@@ -1357,8 +1368,8 @@ nucomp_marshal_load(VALUE self, VALUE a)
     Check_Type(a, T_ARRAY);
     if (RARRAY_LEN(a) != 2)
 	rb_raise(rb_eArgError, "marshaled complex must have an array whose length is 2 but %ld", RARRAY_LEN(a));
-    rb_ivar_set(self, id_i_real, RARRAY_PTR(a)[0]);
-    rb_ivar_set(self, id_i_imag, RARRAY_PTR(a)[1]);
+    rb_ivar_set(self, id_i_real, RARRAY_AREF(a, 0));
+    rb_ivar_set(self, id_i_imag, RARRAY_AREF(a, 1));
     return self;
 }
 
@@ -1393,6 +1404,20 @@ rb_Complex(VALUE x, VALUE y)
     return nucomp_s_convert(2, a, rb_cComplex);
 }
 
+VALUE
+rb_complex_set_real(VALUE cmp, VALUE r)
+{
+    RCOMPLEX_SET_REAL(cmp, r);
+    return cmp;
+}
+
+VALUE
+rb_complex_set_imag(VALUE cmp, VALUE i)
+{
+    RCOMPLEX_SET_IMAG(cmp, i);
+    return cmp;
+}
+
 /*
  * call-seq:
  *    cmp.to_i  ->  integer
@@ -1409,10 +1434,9 @@ nucomp_to_i(VALUE self)
 {
     get_dat1(self);
 
-    if (k_inexact_p(dat->imag) || f_nonzero_p(dat->imag)) {
-	VALUE s = f_to_s(self);
-	rb_raise(rb_eRangeError, "can't convert %s into Integer",
-		 StringValuePtr(s));
+    if (!k_exact_zero_p(dat->imag)) {
+	rb_raise(rb_eRangeError, "can't convert %"PRIsVALUE" into Integer",
+		 self);
     }
     return f_to_i(dat->real);
 }
@@ -1433,10 +1457,9 @@ nucomp_to_f(VALUE self)
 {
     get_dat1(self);
 
-    if (k_inexact_p(dat->imag) || f_nonzero_p(dat->imag)) {
-	VALUE s = f_to_s(self);
-	rb_raise(rb_eRangeError, "can't convert %s into Float",
-		 StringValuePtr(s));
+    if (!k_exact_zero_p(dat->imag)) {
+	rb_raise(rb_eRangeError, "can't convert %"PRIsVALUE" into Float",
+		 self);
     }
     return f_to_f(dat->real);
 }
@@ -1459,10 +1482,9 @@ nucomp_to_r(VALUE self)
 {
     get_dat1(self);
 
-    if (k_inexact_p(dat->imag) || f_nonzero_p(dat->imag)) {
-	VALUE s = f_to_s(self);
-	rb_raise(rb_eRangeError, "can't convert %s into Rational",
-		 StringValuePtr(s));
+    if (!k_exact_zero_p(dat->imag)) {
+	rb_raise(rb_eRangeError, "can't convert %"PRIsVALUE" into Rational",
+		 self);
     }
     return f_to_r(dat->real);
 }
@@ -1487,10 +1509,9 @@ nucomp_rationalize(int argc, VALUE *argv, VALUE self)
 
     rb_scan_args(argc, argv, "01", NULL);
 
-    if (k_inexact_p(dat->imag) || f_nonzero_p(dat->imag)) {
-       VALUE s = f_to_s(self);
-       rb_raise(rb_eRangeError, "can't convert %s into Rational",
-                StringValuePtr(s));
+    if (!k_exact_zero_p(dat->imag)) {
+       rb_raise(rb_eRangeError, "can't convert %"PRIsVALUE" into Rational",
+                self);
     }
     return rb_funcall2(dat->real, rb_intern("rationalize"), argc, argv);
 }
@@ -1675,8 +1696,6 @@ isimagunit(int c)
 	    c == 'j' || c == 'J');
 }
 
-VALUE rb_cstr_to_rat(const char *, int);
-
 static VALUE
 str2num(char *s)
 {
@@ -1781,19 +1800,26 @@ parse_comp(const char *s, int strict,
 	   VALUE *num)
 {
     char *buf, *b;
+    VALUE tmp;
+    int ret = 1;
 
-    buf = ALLOCA_N(char, strlen(s) + 1);
+    buf = ALLOCV_N(char, tmp, strlen(s) + 1);
     b = buf;
 
     skip_ws(&s);
-    if (!read_comp(&s, strict, num, &b))
-	return 0;
-    skip_ws(&s);
+    if (!read_comp(&s, strict, num, &b)) {
+	ret = 0;
+    }
+    else {
+	skip_ws(&s);
 
-    if (strict)
-	if (*s != '\0')
-	    return 0;
-    return 1;
+	if (strict)
+	    if (*s != '\0')
+		ret = 0;
+    }
+    ALLOCV_END(tmp);
+
+    return ret;
 }
 
 static VALUE
@@ -1819,9 +1845,8 @@ string_to_c_strict(VALUE self)
 	s = (char *)"";
 
     if (!parse_comp(s, 1, &num)) {
-	VALUE ins = f_inspect(self);
-	rb_raise(rb_eArgError, "invalid value for convert(): %s",
-		 StringValuePtr(ins));
+	rb_raise(rb_eArgError, "invalid value for convert(): %+"PRIsVALUE,
+		 self);
     }
 
     return num;
@@ -1887,30 +1912,17 @@ nucomp_s_convert(int argc, VALUE *argv, VALUE klass)
     backref = rb_backref_get();
     rb_match_busy(backref);
 
-    switch (TYPE(a1)) {
-      case T_FIXNUM:
-      case T_BIGNUM:
-      case T_FLOAT:
-	break;
-      case T_STRING:
+    if (RB_TYPE_P(a1, T_STRING)) {
 	a1 = string_to_c_strict(a1);
-	break;
     }
 
-    switch (TYPE(a2)) {
-      case T_FIXNUM:
-      case T_BIGNUM:
-      case T_FLOAT:
-	break;
-      case T_STRING:
+    if (RB_TYPE_P(a2, T_STRING)) {
 	a2 = string_to_c_strict(a2);
-	break;
     }
 
     rb_backref_set(backref);
 
-    switch (TYPE(a1)) {
-      case T_COMPLEX:
+    if (RB_TYPE_P(a1, T_COMPLEX)) {
 	{
 	    get_dat1(a1);
 
@@ -1919,8 +1931,7 @@ nucomp_s_convert(int argc, VALUE *argv, VALUE klass)
 	}
     }
 
-    switch (TYPE(a2)) {
-      case T_COMPLEX:
+    if (RB_TYPE_P(a2, T_COMPLEX)) {
 	{
 	    get_dat1(a2);
 
@@ -1929,8 +1940,7 @@ nucomp_s_convert(int argc, VALUE *argv, VALUE klass)
 	}
     }
 
-    switch (TYPE(a1)) {
-      case T_COMPLEX:
+    if (RB_TYPE_P(a1, T_COMPLEX)) {
 	if (argc == 1 || (k_exact_zero_p(a2)))
 	    return a1;
     }
@@ -2018,6 +2028,7 @@ numeric_arg(VALUE self)
 /*
  * call-seq:
  *    num.rect  ->  array
+ *    num.rectangular  ->  array
  *
  * Returns an array; [num, 0].
  */
@@ -2076,9 +2087,10 @@ float_arg(VALUE self)
  * and i is imaginary unit.  Real a equals complex a+0i
  * mathematically.
  *
- * In ruby, you can create complex object with Complex, Complex::rect,
- * Complex::polar or to_c method.
+ * Complex object can be created as literal, and also by using
+ * Kernel#Complex, Complex::rect, Complex::polar or to_c method.
  *
+ *    2+1i                 #=> (2+1i)
  *    Complex(1)           #=> (1+0i)
  *    Complex(2, 3)        #=> (2+3i)
  *    Complex.polar(2, 3)  #=> (-1.9799849932008908+0.2822400161197344i)
@@ -2112,29 +2124,19 @@ Init_Complex(void)
     assert(fprintf(stderr, "assert() is now active\n"));
 
     id_abs = rb_intern("abs");
-    id_abs2 = rb_intern("abs2");
     id_arg = rb_intern("arg");
-    id_cmp = rb_intern("<=>");
-    id_conj = rb_intern("conj");
     id_convert = rb_intern("convert");
     id_denominator = rb_intern("denominator");
-    id_divmod = rb_intern("divmod");
     id_eqeq_p = rb_intern("==");
     id_expt = rb_intern("**");
     id_fdiv = rb_intern("fdiv");
-    id_floor = rb_intern("floor");
-    id_idiv = rb_intern("div");
-    id_imag = rb_intern("imag");
-    id_inspect = rb_intern("inspect");
     id_negate = rb_intern("-@");
     id_numerator = rb_intern("numerator");
     id_quo = rb_intern("quo");
-    id_real = rb_intern("real");
     id_real_p = rb_intern("real?");
     id_to_f = rb_intern("to_f");
     id_to_i = rb_intern("to_i");
     id_to_r = rb_intern("to_r");
-    id_to_s = rb_intern("to_s");
     id_i_real = rb_intern("@real");
     id_i_imag = rb_intern("@image"); /* @image, not @imag */
 
@@ -2174,10 +2176,6 @@ Init_Complex(void)
     rb_undef_method(rb_cComplex, "truncate");
     rb_undef_method(rb_cComplex, "i");
 
-#if 0 /* NUBY */
-    rb_undef_method(rb_cComplex, "//");
-#endif
-
     rb_define_method(rb_cComplex, "real", nucomp_real, 0);
     rb_define_method(rb_cComplex, "imaginary", nucomp_imag, 0);
     rb_define_method(rb_cComplex, "imag", nucomp_imag, 0);
@@ -2225,8 +2223,11 @@ Init_Complex(void)
     rb_define_method(rb_cComplex, "to_s", nucomp_to_s, 0);
     rb_define_method(rb_cComplex, "inspect", nucomp_inspect, 0);
 
+    rb_undef_method(rb_cComplex, "positive?");
+    rb_undef_method(rb_cComplex, "negative?");
+
     rb_define_private_method(rb_cComplex, "marshal_dump", nucomp_marshal_dump, 0);
-    compat = rb_define_class_under(rb_cComplex, "compatible", rb_cObject);
+    compat = rb_define_class_under(rb_cComplex, "compatible", rb_cObject); /* :nodoc: */
     rb_define_private_method(compat, "marshal_load", nucomp_marshal_load, 1);
     rb_marshal_define_compat(rb_cComplex, compat, nucomp_dumper, nucomp_loader);
 
@@ -2268,6 +2269,8 @@ Init_Complex(void)
      */
     rb_define_const(rb_cComplex, "I",
 		    f_complex_new_bang2(rb_cComplex, ZERO, ONE));
+
+    rb_provide("complex.so");	/* for backward compatibility */
 }
 
 /*
diff --git a/configure.in b/configure.in
index 7977aaf359..2cd0f27b64 100644
--- a/configure.in
+++ b/configure.in
@@ -3,16 +3,24 @@ AC_INIT()
 {
 AC_CONFIG_AUX_DIR(tool)
 
-AC_PREREQ(2.60)
+AC_PREREQ(2.67)
 
 AC_DEFUN([RUBY_PREREQ_AC],
 	[m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]), [$1]), [-1],
 		AC_MSG_ERROR([Autoconf version ]$1[ or higher is required]$2))])
 
+AC_DISABLE_OPTION_CHECKING
+
+AC_ARG_VAR([cflags], [additional CFLAGS])
+AC_ARG_VAR([cppflags], [additional CPPFLAGS])
+AC_ARG_VAR([cxxflags], [additional CXXFLAGS])
+
 AC_DEFUN([RUBY_RM_RECURSIVE], [
 m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]), [2.70]), [-1], [
 # suppress error messages, rm: cannot remove 'conftest.dSYM', from
 # AC_EGREP_CPP with CFLAGS=-g on Darwin.
+#
+# TODO: remove this hack when AC_PREREQ() becomes 2.70 or later.
 AS_CASE([$build_os], [darwin*], [
 rm() {
     rm_recursive=''
@@ -35,16 +43,20 @@ AC_ARG_WITH(baseruby,
 		AS_CASE(["$withval"],[*ruby*],[BASERUBY=$withval],[AC_MSG_ERROR(need ruby)])
 	],
 	[
-		BASERUBY="ruby"
+		AC_PATH_PROG([BASERUBY], [ruby], [false])
 	])
-if test "`RUBYOPT=- $BASERUBY -e 'p 42' 2>/dev/null`" = 42; then
-    if test "`RUBYOPT=- $BASERUBY --disable=gems -e 'p 42' 2>/dev/null`" = 42; then
+if test "`RUBYOPT=- $BASERUBY -e 'print 42' 2>/dev/null`" = 42; then
+    if test "`RUBYOPT=- $BASERUBY --disable=gems -e 'print 42' 2>/dev/null`" = 42; then
 	BASERUBY="$BASERUBY --disable=gems"
     fi
+    $BASERUBY -C "$srcdir/tool" downloader.rb -e gnu config.guess config.sub
+    HAVE_BASERUBY=yes
 else
     BASERUBY="echo executable host ruby is required.  use --with-baseruby option.; false"
+    HAVE_BASERUBY=no
 fi
 AC_SUBST(BASERUBY)
+AC_SUBST(HAVE_BASERUBY)
 
 AC_DEFUN([RUBY_MINGW32],
 [AS_CASE(["$host_os"],
@@ -90,8 +102,15 @@ AC_DEFUN([RUBY_NACL],
                        [no], [nacl_cv_build_variant=glibc],
                        [yes], [nacl_cv_build_variant=newlib])])
 
-  AS_CASE(["$build_cpu"],
-          [x86_64|i?86], [nacl_cv_cpu_nick=x86], [nacl_cv_cpu_nick=$build_cpu])
+  AS_CASE(["$target_cpu"],
+          [x86_64], [nacl_cv_cpu_nick=x86
+                     nacl_cv_cpu_nick2=x86_64],
+          [i?86], [nacl_cv_cpu_nick=x86
+                   nacl_cv_cpu_nick2=x86_32],
+          [le32], [nacl_cv_cpu_nick=pnacl
+                   nacl_cv_cpu_nick2=pnacl
+                   ac_cv_exeext=.pexe],
+          [nacl_cv_cpu_nick=$target_cpu])
   AS_CASE(["$build_os"],
           [linux*], [nacl_cv_os_nick=linux],
           [darwin*], [nacl_cv_os_nick=mac],
@@ -102,9 +121,15 @@ AC_DEFUN([RUBY_NACL],
   ac_tool_prefix="$host_cpu-nacl-"
 
   AC_MSG_CHECKING([NativeClient toolchain])
-  if test -d \
+  if test x"$nacl_cv_cpu_nick" = xpnacl; then
+    NACL_TOOLCHAIN="${nacl_cv_os_nick}_pnacl"
+    ac_tool_prefix=pnacl-
+  elif test -d \
     "${NACL_SDK_ROOT}/toolchain/${nacl_cv_os_nick}_${nacl_cv_cpu_nick}_${nacl_cv_build_variant}"; then
     NACL_TOOLCHAIN="${nacl_cv_os_nick}_${nacl_cv_cpu_nick}_${nacl_cv_build_variant}"
+  elif test -d \
+    "${NACL_SDK_ROOT}/toolchain/${nacl_cv_os_nick}_x86_${nacl_cv_cpu_nick}/${nacl_cv_build_variant}"; then
+    NACL_TOOLCHAIN="${nacl_cv_os_nick}_x86_${nacl_cv_cpu_nick}/${nacl_cv_build_variant}"
   else
     AS_CASE(
       ["${nacl_cv_build_variant}"],
@@ -132,10 +157,32 @@ AC_DEFUN([RUBY_NACL],
   if ! echo -- "${PATH}" | grep -F "${NACL_SDK_ROOT}/toolchain/${NACL_TOOLCHAIN}/bin" > /dev/null; then
     PATH="${PATH}:${NACL_SDK_ROOT}/toolchain/${NACL_TOOLCHAIN}/bin"
   fi
+  AC_MSG_RESULT(${NACL_SDK_ROOT}/toolchain/${NACL_TOOLCHAIN}/bin)
+
+  RUBY_APPEND_OPTIONS(XCFLAGS, '-I$(NACL_SDK_ROOT)/include')
+  if test x"${nacl_cv_cpu_nick}" = xpnacl; then
+    RUBY_APPEND_OPTIONS(XCFLAGS, '-isystem $(NACL_SDK_ROOT)/include/pnacl')
+  elif test x"${nacl_cv_build_variant}" = xnewlib; then
+    RUBY_APPEND_OPTIONS(XCFLAGS, '-isystem $(NACL_SDK_ROOT)/include/newlib')
+  fi
+
+  AC_MSG_CHECKING([nacl library path])
+  if test -d "${NACL_SDK_ROOT}/lib/${nacl_cv_build_variant}_${nacl_cv_cpu_nick2}/Release"; then
+    nacl_cv_libpath="${nacl_cv_build_variant}_${nacl_cv_cpu_nick2}"
+  elif test -d "${NACL_SDK_ROOT}/lib/${nacl_cv_cpu_nick2}/Release"; then
+    nacl_cv_libpath="${nacl_cv_cpu_nick2}"
+  else
+    AC_MSG_ERROR([not found])
+  fi
+  AC_MSG_RESULT([${nacl_cv_libpath}])
+  RUBY_APPEND_OPTIONS(XLDFLAGS, '-L$(NACL_SDK_ROOT)/'"lib/${nacl_cv_libpath}/Release")
 
   AC_SUBST(NACL_TOOLCHAIN)
   AC_SUBST(NACL_SDK_ROOT)
-  AC_SUBST(NACL_SDK_VARIANT, nacl_cv_build_variant)
+  AC_SUBST(NACL_SDK_VARIANT, "${nacl_cv_build_variant}")
+  AC_SUBST(NACL_LIB_PATH, "${nacl_cv_libpath}")
+  AC_CHECK_TOOLS(CC, [clang gcc])
+  AC_CHECK_TOOLS(CXX, [clang++ g++])
 ])])
 
 AC_DEFUN([RUBY_NACL_CHECK_PEPPER_TYPES],
@@ -188,8 +235,6 @@ AC_SUBST(MINOR)
 AC_SUBST(TEENY)
 RUBY_PROGRAM_VERSION=`sed -n 's/^#define RUBY_VERSION "\(.*\)"/\1/p' $srcdir/version.h`
 AC_SUBST(RUBY_PROGRAM_VERSION)
-RUBY_RELEASE_DATE=`sed -n 's/^#define RUBY_RELEASE_DATE "\(.*\)"/\1/p' $srcdir/version.h`
-AC_SUBST(RUBY_RELEASE_DATE)
 RUBY_PATCHLEVEL=`sed -n 's/^#define RUBY_PATCHLEVEL //p' $srcdir/version.h`
 AC_DEFINE(CANONICALIZATION_FOR_MATHN)
 dnl checks for alternative programs
@@ -214,6 +259,7 @@ AS_CASE(["$build_os"],
       [xgcc-4.2|x/usr/bin/gcc-4.2], [: ${CXX=g++-4.2}],
       [xgcc|x/usr/bin/gcc],         [: ${CXX=g++}],
       [xcc|x/usr/bin/cc],           [: ${CXX=c++}],
+      [xicc],                       [: ${CXX=icpc}],
       [xclang|x/usr/bin/clang],     [: ${CXX=clang++}])
   ])
 test -z "$CC" || ac_cv_prog_CC="$CC"
@@ -222,37 +268,71 @@ test -z "$CXX" || ac_cv_prog_CXX="$CXX"
 if test "$program_prefix" = NONE; then
   program_prefix=
 fi
+if test "$prefix" -ef .; then
+  AC_MSG_ERROR(--prefix cannot be the current working directory.)
+fi
 RUBY_BASE_NAME=`echo ruby | sed "$program_transform_name"`
 RUBYW_BASE_NAME=`echo rubyw | sed "$program_transform_name"`
 AC_SUBST(RUBY_BASE_NAME)
 AC_SUBST(RUBYW_BASE_NAME)
 AC_SUBST(RUBY_VERSION_NAME, '${RUBY_BASE_NAME}-${ruby_version}')
-AC_DEFINE_UNQUOTED(RUBY_BASE_NAME, "${RUBY_BASE_NAME}" !<verconf>!)
-AC_DEFINE_UNQUOTED(RUBY_VERSION_NAME, RUBY_BASE_NAME"-"RUBY_LIB_VERSION !<verconf>!)
 
 AC_CANONICAL_TARGET
+test x"$target_alias" = x &&
 target_os=`echo $target_os | sed 's/linux-gnu$/linux/;s/linux-gnu/linux-/'`
 ac_install_sh='' # unusable for extension libraries.
 
+AC_ARG_WITH(os-version-style,
+	AS_HELP_STRING([--with-os-version-style=TYPE],
+		       [OS version number for target and target_os [[full]]]
+		       [(full|teeny|minor+0|minor|major+0|major|none)]),
+	[os_version_style=$withval],
+	[os_version_style=full
+	    AS_CASE($target_os, [[*[0-9].*]],
+		[AS_CASE([`/usr/bin/ruby -e 'puts RUBY_PLATFORM' 2>/dev/null`],
+		    [[*-*[0-9].*.0]], [os_version_style=minor+0],
+		    [[*-*[0-9].*.*]], [os_version_style=full],
+		    [[*-*[0-9].0]  ], [os_version_style=major+0],
+		    [[*-*[0-9].*]  ], [os_version_style=minor],
+		    [[*-*[0-9]]    ], [os_version_style=major],
+		)])
+	])
+os_version_style_transform=
+AS_CASE("${os_version_style}",
+	[full|teeny], [],
+	[minor+0], [os_version_style_transform=['s/\([0-9]\.[0-9][0-9]*\)\.[0-9][.0-9]*$/\1.0/']],
+	[minor],   [os_version_style_transform=['s/\([0-9]\.[0-9][0-9]*\)\.[0-9][.0-9]*$/\1/']],
+	[major+0], [os_version_style_transform=['s/\([0-9]\)\.[0-9][.0-9]*$/\1.0/']],
+	[major],   [os_version_style_transform=['s/\([0-9]\)\.[0-9][.0-9]*$/\1/']],
+	[none],    [os_version_style_transform=['s/[0-9]\.[0-9][.0-9]*$//']],
+	[AC_MSG_ERROR(unknown --with-os-version-style: $withval)])
+AS_IF([test -z "$target_alias" -a -n "$os_version_style_transform"],
+	[
+	target=`echo ${target} | sed "$os_version_style_transform"`
+	target_os=`echo ${target_os} | sed "$os_version_style_transform"`
+	])
+
 AC_DEFUN([RUBY_APPEND_OPTION],
-	[# RUBY_APPEND_OPTION($1, $2)
+	[# RUBY_APPEND_OPTION($1)
 	AS_CASE([" [$]{$1-} "],
 	[*' $2 '*], [], ['  '], [ $1="$2"], [ $1="[$]$1 $2"])])
 AC_DEFUN([RUBY_APPEND_OPTIONS],
-	[{ for rb_opt in $2; do # RUBY_APPEND_OPTIONS($1, $2)
+	[# RUBY_APPEND_OPTIONS($1)
+	for rb_opt in $2; do
 	AS_CASE([" [$]{$1-} "],
 	[*" [$]{rb_opt} "*], [], ['  '], [ $1="[$]{rb_opt}"], [ $1="[$]$1 [$]{rb_opt}"])
-	done; }])
+	done])
 AC_DEFUN([RUBY_PREPEND_OPTION],
-	[# RUBY_PREPEND_OPTION($1, $2)
+	[# RUBY_PREPEND_OPTION($1)
 	AS_CASE([" [$]{$1-} "],
 	[*' $2 '*], [], ['  '], [ $1="$2"], [ $1="$2 [$]$1"])])
 AC_DEFUN([RUBY_PREPEND_OPTIONS],
-	[{ unset rb_opts; for rb_opt in $2; do # RUBY_PREPEND_OPTIONS($1, $2)
+	[# RUBY_PREPEND_OPTIONS($1)
+	unset rb_opts; for rb_opt in $2; do
 	AS_CASE([" [$]{rb_opts} [$]{$1-} "],
 	[*" [$]{rb_opt} "*], [], ['  '], [ $1="[$]{rb_opt}"], [ rb_opts="[$]{rb_opts}[$]{rb_opt} "])
 	done
-	$1="[$]{rb_opts}[$]$1"; }])
+	$1="[$]{rb_opts}[$]$1"])
 
 AC_ARG_WITH(arch,
 	AS_HELP_STRING([--with-arch=ARCHS],
@@ -275,9 +355,11 @@ AC_MSG_RESULT([$ARCH_FLAG])
 
 AC_DEFUN([RUBY_UNIVERSAL_ARCH], [
 # RUBY_UNIVERSAL_ARCH begin
+ARCH_FLAG=`expr " $CXXFLAGS " : ['.* \(-m[0-9][0-9]*\) ']`
+test ${CXXFLAGS+set} && CXXFLAGS=`echo "$CXXFLAGS" | sed [-e 's/ *-arch  *[^ ]*//g' -e 's/ *-m32//g' -e 's/ *-m64//g']`
 ARCH_FLAG=`expr " $CFLAGS " : ['.* \(-m[0-9][0-9]*\) ']`
-test ${CFLAGS+set} && CFLAGS=`echo "$CFLAGS" | sed -e 's/ *-arch  *[^ ]*//g' -e 's/ *-m32//g' -e 's/ *-m64//g'`
-test ${LDFLAGS+set} && LDFLAGS=`echo "$LDFLAGS" | sed -e 's/ *-arch  *[^ ]*//g' -e 's/ *-m32//g' -e 's/ *-m64//g'`
+test ${CFLAGS+set} && CFLAGS=`echo "$CFLAGS" | sed [-e 's/ *-arch  *[^ ]*//g' -e 's/ *-m32//g' -e 's/ *-m64//g']`
+test ${LDFLAGS+set} && LDFLAGS=`echo "$LDFLAGS" | sed [-e 's/ *-arch  *[^ ]*//g' -e 's/ *-m32//g' -e 's/ *-m64//g']`
 unset universal_binary universal_archnames
 if test ${target_archs+set}; then
     AC_MSG_CHECKING([target architectures])
@@ -306,7 +388,6 @@ if test ${target_archs+set}; then
     target=`echo $target | sed "s/^$target_cpu-/-/"`
     target_alias=`echo $target_alias | sed "s/^$target_cpu-/-/"`
     if test "${universal_binary-no}" = yes; then
-	RUBY_PREREQ_AC(2.63, [ to compile universal binary])
 	AC_SUBST(try_header,try_compile)
 	target_cpu=universal
 	real_cross_compiling=$cross_compiling
@@ -356,8 +437,8 @@ else
     rb_cv_target_archs=${target_archs}
 fi
 if test "x${ARCH_FLAG}" != x; then
-    CFLAGS="$CFLAGS ${ARCH_FLAG}"
-    LDFLAGS="${LDFLAGS+$LDFLAGS }${ARCH_FLAG}"
+    CFLAGS="${CFLAGS:+$CFLAGS }${ARCH_FLAG}"
+    LDFLAGS="${LDFLAGS:+$LDFLAGS }${ARCH_FLAG}"
 fi
 # RUBY_UNIVERSAL_ARCH end
 ])
@@ -391,7 +472,18 @@ fi
 RUBY_NACL
 AS_CASE(["$host_os:$build_os"],
 [darwin*:darwin*], [
-    AC_CHECK_TOOLS(CC, [gcc-4.2 clang gcc cc])
+    AC_CHECK_TOOLS(CC, [clang gcc cc])
+    # Following Apple deployed clang are broken
+    # clang version 1.0 (http://llvm.org/svn/llvm-project/cfe/tags/Apple/clang-23 exported)
+    # Apple clang version 2.0 (tags/Apple/clang-137) (based on LLVM 2.9svn)
+    # Apple clang version 2.1 (tags/Apple/clang-163.7.1) (based on LLVM 3.0svn)
+    if ! $CC -E -xc - <<SRC >/dev/null; then
+	@%:@if defined __APPLE_CC__ && defined __clang_major__ && __clang_major__ < 3
+	@%:@error premature clang
+	@%:@endif
+SRC
+	AC_MSG_ERROR([clang version 3.0 or later is required])
+    fi
 ])
 if test x"${build}" != x"${host}"; then
   AC_CHECK_TOOL(CC, gcc)
@@ -409,7 +501,11 @@ AC_SUBST(LD)
 if test "$GCC" = yes; then
     linker_flag=-Wl,
     : ${optflags=-O3}
-    RUBY_APPEND_OPTIONS(XCFLAGS, ["-include ruby/config.h" "-include ruby/missing.h"])
+    gcc_major=`echo =__GNUC__ | $CC -E -xc - | sed '/^=/!d;s///'`
+    gcc_minor=`echo =__GNUC_MINOR__ | $CC -E -xc - | sed '/^=/!d;s///'`
+    test -n "$gcc_major" || gcc_major=0
+    test -n "$gcc_minor" || gcc_minor=0
+    # RUBY_APPEND_OPTIONS(XCFLAGS, ["-include ruby/config.h" "-include ruby/missing.h"])
 else
     linker_flag=
 fi
@@ -422,6 +518,16 @@ RUBY_CPPOUTFILE
 AC_SUBST(OUTFLAG)
 AC_SUBST(COUTFLAG)
 
+cc_version=
+for option in --version -v -V -qversion; do
+    cc_version_message=`$CC $option 2>&1`
+    cc_version_status=$?
+    AS_CASE($cc_version_status, [0], [:], [continue])
+    AS_CASE($cc_version_message, [*Warning*], [continue])
+    cc_version='$(CC) '$option
+done
+AC_SUBST(CC_VERSION, $cc_version)
+
 RUBY_UNIVERSAL_ARCH
 if test "$target_cpu" != "$host_cpu" -a "$GCC" = yes -a "$cross_compiling" = no -a "$universal_binary" = no; then
     RUBY_DEFAULT_ARCH("$target_cpu")
@@ -516,8 +622,10 @@ AC_DEFUN([RUBY_DTRACE_AVAILABLE],
 [
     echo "provider conftest{ probe fire(); };" > conftest_provider.d
     if $DTRACE -h -o conftest_provider.h -s conftest_provider.d >/dev/null 2>/dev/null; then
-      # DTrace is available on the system
-      rb_cv_dtrace_available=yes
+      AC_TRY_COMPILE([@%:@include "conftest_provider.h"], [CONFTEST_FIRE();], [
+	# DTrace is available on the system
+	rb_cv_dtrace_available=yes
+      ], [rb_cv_dtrace_available=no])
     else
       # DTrace is not available while dtrace command exists
       # for example FreeBSD 8 or FreeBSD 9 without DTrace build option
@@ -530,15 +638,30 @@ AC_DEFUN([RUBY_DTRACE_AVAILABLE],
 AC_DEFUN([RUBY_DTRACE_POSTPROCESS],
 [AC_CACHE_CHECK(whether $DTRACE needs post processing, rb_cv_prog_dtrace_g,
 [
- echo "int main(void){ return 0; }" > conftest.c
- echo "provider conftest{};" > conftest_provider.d
- $CC $CFLAGS -c -o conftest.o conftest.c
- if $DTRACE -G -s conftest_provider.d conftest.o 2>/dev/null; then
-   rb_cv_prog_dtrace_g=yes
- else
-   rb_cv_prog_dtrace_g=no
- fi
- rm -f conftest.o conftest.c conftest_provider.d conftest_provider.o
+  rb_cv_prog_dtrace_g=no
+  if {
+    cat >conftest_provider.d <<_PROBES &&
+    provider conftest {
+      probe fire();
+    };
+_PROBES
+    $DTRACE -h -o conftest_provider.h -s conftest_provider.d >/dev/null 2>/dev/null &&
+    :
+  }; then
+    AC_TRY_COMPILE([@%:@include "conftest_provider.h"], [CONFTEST_FIRE();], [
+	if {
+	    cp -p conftest.${ac_objext} conftest.${ac_objext}.save &&
+	    $DTRACE -G -s conftest_provider.d conftest.${ac_objext} 2>/dev/null &&
+	    :
+	}; then
+	    if cmp -s conftest.o conftest.${ac_objext}.save; then
+		rb_cv_prog_dtrace_g=yes
+	    else
+		rb_cv_prog_dtrace_g=rebuild
+	    fi
+	fi])
+  fi
+  rm -f conftest.[co] conftest_provider.[dho]
 ])
 ])
 
@@ -609,7 +732,35 @@ else
   unset ac_c_werror_flag
 fi])
 
-AC_DEFUN(RUBY_TRY_CFLAGS, [
+RUBY_WERROR_FLAG([
+    AC_MSG_CHECKING([whether CFLAGS is valid])
+    AC_TRY_COMPILE([], [],
+	[AC_MSG_RESULT(yes)],
+	[
+	AC_MSG_RESULT(no)
+	AC_MSG_ERROR([something wrong with CFLAGS="$CFLAGS"])
+	]
+    )
+    AC_MSG_CHECKING([whether LDFLAGS is valid])
+    {
+	mkdir tmp.$$.try_link &&
+	cd tmp.$$.try_link &&
+	cp ../confdefs.h . &&
+	echo '<?xml?><plist><dict><key>CFBundleIdentifier</key><string></string></dict></plist>' > Info.plist &&
+	:
+    } || AC_MSG_ERROR([failed to make temporary directory])
+    AC_TRY_LINK([], [],
+	[AC_MSG_RESULT(yes)],
+	[
+	cd .. && rm -fr tmp.$$.try_link
+	AC_MSG_RESULT(no)
+	AC_MSG_ERROR([something wrong with LDFLAGS="$LDFLAGS"])
+	]
+    )
+    cd .. && rm -fr tmp.$$.try_link
+])
+
+AC_DEFUN([RUBY_TRY_CFLAGS], [
     AC_MSG_CHECKING([whether ]$1[ is accepted as CFLAGS])
     RUBY_WERROR_FLAG([
     CFLAGS="[$]CFLAGS $1"
@@ -621,7 +772,7 @@ AC_DEFUN(RUBY_TRY_CFLAGS, [
     ])
 ])
 
-AC_DEFUN(RUBY_TRY_LDFLAGS, [
+AC_DEFUN([RUBY_TRY_LDFLAGS], [
     save_LDFLAGS="$LDFLAGS"
     LDFLAGS="[$]LDFLAGS $1"
     AC_MSG_CHECKING([whether $1 is accepted as LDFLAGS])
@@ -636,18 +787,45 @@ AC_DEFUN(RUBY_TRY_LDFLAGS, [
     save_LDFLAGS=
 ])
 
+: ${RPATHFLAG=''}
+rpathflag=''
+AS_IF([test x"${RPATHFLAG}" = x], [
+    AS_CASE(["$target_os"],
+	[hpux*], [AS_IF([test "$rb_cv_prog_gnu_ld" = no], [rpathflag='+b '])],
+	[aix*], [rpathflag='-blibpath:'],
+	[for rpathflag in -R "-rpath "; do
+	    AS_CASE("$rpathflag",
+		    [*" "], [AS_CASE(["${linker_flag}"],
+				     [*,], [rpathflag=`echo "$rpathflag" | tr ' ' ,`])])
+	    rpathflag="${linker_flag}${rpathflag}"
+	    RUBY_TRY_LDFLAGS([${rpathflag}.], [], [rpathflag=])
+	    AS_IF([test "x${rpathflag}" != x], [])
+        done])
+], [
+    rpathflag=`echo "$RPATHFLAG" | sed 's/%.*//'`
+])
+
 AS_CASE([$RUBY_PATCHLEVEL], [-*],
 	[particular_werror_flags=yes], [particular_werror_flags=no])
 AC_ARG_ENABLE(werror,
 	AS_HELP_STRING([--disable-werror],
 		       [don't make warnings into errors
 		       even if a compiler support -Werror feature
-		       @<:@disabled by default unless development version@:>@]),
+		       [[disabled by default unless development version]]]),
 	[particular_werror_flags=$enableval])
 
 rb_cv_warnflags="$warnflags"
 if test "$GCC:${warnflags+set}:no" = yes::no; then
+    if test $gcc_major -ge 4; then
+	extra_warning=-Werror=extra-tokens
+    else
+	extra_warning=
+    fi
+    if test $gcc_major -eq 5; then
+	extra_warning="$extra_warning -Wno-maybe-uninitialized"
+    fi
     for wflag in -Wno-unused-parameter -Wno-parentheses -Wno-long-long \
+                 -diag-disable=2259 \
 		 -Wno-missing-field-initializers \
 		 -Wunused-variable \
 		 -Werror=pointer-arith \
@@ -655,6 +833,10 @@ if test "$GCC:${warnflags+set}:no" = yes::no; then
 		 -Werror=declaration-after-statement \
 		 -Werror=shorten-64-to-32 \
 		 -Werror=implicit-function-declaration \
+		 -Werror=division-by-zero \
+		 -Werror=deprecated-declarations \
+		 -Wno-packed-bitfield-compat \
+		 $extra_warning \
 		 ; do
 	if test "$particular_werror_flags" != yes; then
 	    wflag=`echo x$wflag | sed 's/^x-Werror=/-W/;s/^x//'`
@@ -679,25 +861,45 @@ if test "$GCC:${warnflags+set}:no" = yes::no; then
     rb_cv_warnflags="$warnflags"
     warnflags=
 fi
-if test "$GCC" = yes; then
-    test "${debugflags+set}" || {RUBY_TRY_CFLAGS(-ggdb3, [debugflags=-ggdb3])}
-    test "${debugflags+set}" || {RUBY_TRY_CFLAGS(-ggdb, [debugflags=-ggdb])}
-    test "${debugflags+set}" || {RUBY_TRY_CFLAGS(-g3, [debugflags=-g3])}
+RUBY_TRY_CFLAGS(-Qunused-arguments, [RUBY_APPEND_OPTIONS(rb_cv_wsuppress_flags, -Qunused-arguments)])
+
+for n in infinity nan; do
+    m=AS_TR_CPP($n)
+    AC_CACHE_CHECK([whether $m is available without C99 option], rb_cv_$n,
+	[AC_COMPILE_IFELSE(
+	    [AC_LANG_BOOL_COMPILE_TRY(AC_INCLUDES_DEFAULT([@%:@include <math.h>
+@%:@ifndef $m
+@%:@error no $m
+@%:@endif
+]), [1])], [eval rb_cv_$n=yes], [eval rb_cv_$n=no])])
+    if eval test '"$rb_cv_'$n'"' = yes; then
+	AC_DEFINE_UNQUOTED([HAVE_]$m)
+    fi
+done
 
-    # -D_FORTIFY_SOURCE
-    RUBY_TRY_CFLAGS(-D_FORTIFY_SOURCE=2, [RUBY_APPEND_OPTION(XCFLAGS, -D_FORTIFY_SOURCE=2)])
+if test "$GCC" = yes; then
+    # NaCl's glibc build generates undefined references to __memset_chk.
+    # TODO(sbc): Remove this once NaCl's glibc is fixed.
+    AS_CASE(["$target_os"], [nacl], [], [
+      # -D_FORTIFY_SOURCE
+      # When defined _FORTIFY_SOURCE, glibc enables some additional sanity
+      # argument check. The performance drop is very little and Ubuntu enables
+      # _FORTIFY_SOURCE=2 by default. So, let's support it for protecting us from
+      # a mistake of silly C extensions.
+      RUBY_TRY_CFLAGS(-D_FORTIFY_SOURCE=2, [RUBY_APPEND_OPTION(XCFLAGS, -D_FORTIFY_SOURCE=2)])
+   ])
 
     # -fstack-protector
     AS_CASE(["$target_os"],
-    [mingw*|nacl|haiku], [
+    [mingw*|nacl], [
 	stack_protector=no
-    ],
-    [
+    ])
+    if test -z "${stack_protector+set}"; then
 	RUBY_TRY_CFLAGS(-fstack-protector, [stack_protector=yes], [stack_protector=no])
 	if test "x$stack_protector" = xyes; then
 	    RUBY_TRY_LDFLAGS(-fstack-protector, [], [stack_protector=broken])
 	fi
-    ])
+    fi
     if test "x$stack_protector" = xyes; then
 	RUBY_APPEND_OPTION(XCFLAGS, -fstack-protector)
 	RUBY_APPEND_OPTION(XLDFLAGS, -fstack-protector)
@@ -710,25 +912,54 @@ if test "$GCC" = yes; then
       # various  headers.  Most frequent  situation is  the use  of //
       # comments.   We  bypass  ANSI   C  mode  for  them.   Otherwise
       # extension libs cannot include those headers.
+
+      # Since math.h in some mingw64 wrongly delcares frexp and modf
+      # to be pure, the variables pointed by the second arguments are
+      # considered uninitialized unexpectedly.
+      AC_CACHE_CHECK([whether frexp and modf are broken],
+	rb_cv_mingw64_broken_frexp_modf,
+	[
+	  save_CFLAGS="$CFLAGS"
+	  if test "$particular_werror_flags" = "yes"; then
+	    CFLAGS="$CFLAGS -Werror=uninitialized"
+	  else
+	    CFLAGS="$CFLAGS -Werror -Wuninitialized"
+	  fi
+	  AC_TRY_COMPILE([@%:@include <math.h>
+	    int foo(double x)
+	    {
+	      int exp;
+	      frexp(x, &exp);
+	      return exp;
+	    }], [if (foo(0.0)) return 1;],
+	    [rb_cv_mingw64_broken_frexp_modf=no],
+	    [rb_cv_mingw64_broken_frexp_modf=yes])
+	  CFLAGS="$save_CFLAGS"
+	])
+      if test "$rb_cv_mingw64_broken_frexp_modf" = yes; then
+	AC_DEFINE(RUBY_MINGW64_BROKEN_FREXP_MODF)
+      fi
     ],
-    [cygwin*|darwin*|netbsd*], [
+    [cygwin*|darwin*|netbsd*|nacl], [
       # need lgamma_r(), finite()
     ],
-    [haiku], [
-      # Haiku R1/alpha3 uses gcc-4.4.4 which can not handle anonymous union
-      # with ANSI standard flags. Anonumous union is required to compile
-      # socket extension where <net/if.h> uses anonymous union.
-    ],
     [
       # ANSI (no XCFLAGS because this is C only)
-      RUBY_TRY_CFLAGS(-ansi -std=iso9899:199409, [
-        RUBY_APPEND_OPTION(warnflags, -ansi -std=iso9899:199409)
-        RUBY_APPEND_OPTION(strict_warnflags, -ansi -std=iso9899:199409)
-      ])
+	for ansi_options in -std=iso9899:1999 "-ansi -std=iso9899:199409"; do
+	    RUBY_TRY_CFLAGS(${ansi_options}, [
+		RUBY_APPEND_OPTIONS(warnflags, ${ansi_options})
+		RUBY_APPEND_OPTIONS(strict_warnflags, ${ansi_options})
+	    ], [ansi_options=])
+	    test "x${ansi_options}" = x || break
+	done
     ])
 
     # suppress annoying -Wstrict-overflow warnings
     RUBY_TRY_CFLAGS(-fno-strict-overflow, [RUBY_APPEND_OPTION(XCFLAGS, -fno-strict-overflow)])
+
+    test "${debugflags+set}" || {RUBY_TRY_CFLAGS(-ggdb3, [debugflags=-ggdb3])}
+    test "${debugflags+set}" || {RUBY_TRY_CFLAGS(-ggdb, [debugflags=-ggdb])}
+    test "${debugflags+set}" || {RUBY_TRY_CFLAGS(-g3, [debugflags=-g3])}
 fi
 test $ac_cv_prog_cc_g = yes && : ${debugflags=-g}
 
@@ -736,18 +967,14 @@ if test "$GCC" = ""; then
     AS_CASE(["$target_os"],[aix*],[warnflags="$warnflags -qinfo=por" rb_cv_warnflags="$rb_cv_warnflags -qinfo=por"])
 fi
 if test "$GCC" = yes; then
-    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
-	@%:@if !(defined __GNUC__ && __GNUC__ >= 4)
-	@%:@error not GCC 4 or later
-	>>>not GCC 4 or later<<<
-	@%:@endif])],
-	[visibility_option=yes], [visibility_option=no])
-    if test "$visibility_option" = yes; then
+    if test "$gcc_major" -ge 4; then
 	RUBY_TRY_CFLAGS(-fvisibility=hidden, [visibility_option=yes], [visibility_option=no])
     fi
     AC_SUBST(WERRORFLAG, "-Werror")
     if test "$visibility_option" = yes; then
 	RUBY_APPEND_OPTION(XCFLAGS, -fvisibility=hidden)
+	AC_DEFINE(RUBY_SYMBOL_EXPORT_BEGIN, [_Pragma("GCC visibility push(default)")])
+	AC_DEFINE(RUBY_SYMBOL_EXPORT_END,   [_Pragma("GCC visibility pop")])
     else
 	RUBY_TRY_LDFLAGS([-Wl,-unexported_symbol,_Init_*], [visibility_option=ld], [visibility_option=no])
     fi
@@ -759,14 +986,30 @@ if test "$GCC" = yes; then
 
     AS_CASE(["$target_os"], [mingw*], [
 	RUBY_TRY_CFLAGS(-fno-omit-frame-pointer, [optflags="${optflags+$optflags }-fno-omit-frame-pointer"])
+	RUBY_TRY_CFLAGS(-static-libgcc, [static_libgcc=yes], [static_libgcc=no])
+	if test "$static_libgcc" = yes; then
+	    RUBY_APPEND_OPTION(EXTLDFLAGS, -static-libgcc)
+	fi
     ])
 
     # disable fast-math
-    for oflag in -fno-fast-math; do
+    for oflag in -fno-fast-math -fp-model\ precise; do
 	RUBY_TRY_CFLAGS($oflag, [RUBY_APPEND_OPTION(optflags, $oflag)])
     done
 fi
 
+AC_ARG_WITH(opt-dir,
+	AS_HELP_STRING([--with-opt-dir=DIR-LIST],
+		       [add optional headers and libraries directories separated by $PATH_SEPARATOR]),
+	[
+		val=`echo "$PATH_SEPARATOR$withval" | sed "s|$PATH_SEPARATOR\([[^$PATH_SEPARATOR]*]\)| -I\1/include|g;s/^ //"`
+		CPPFLAGS="$CPPFLAGS $val"
+		val=`echo "$PATH_SEPARATOR$withval" | sed "s|$PATH_SEPARATOR\([[^$PATH_SEPARATOR]*]\)| -L\1/lib${rpathflag:+ $rpathflag\\\\1/lib}|g;s/^ //"`
+		LDFLAGS="$LDFLAGS $val"
+		LDFLAGS_OPTDIR="$val"
+		OPT_DIR="$withval"
+	], [OPT_DIR=])
+
 test -z "${ac_env_CFLAGS_set}" -a -n "${cflags+set}" && eval CFLAGS="\"$cflags $ARCH_FLAG\""
 test -z "${ac_env_CXXFLAGS_set}" -a -n "${cxxflags+set}" && eval CXXFLAGS="\"$cxxflags $ARCH_FLAG\""
 
@@ -779,6 +1022,7 @@ AC_ARG_WITH(winnt-ver,
 AS_CASE(["$target_os"],
 [mingw*], [
   RUBY_APPEND_OPTION(CPPFLAGS, -D_WIN32_WINNT=$with_winnt_ver)
+  RUBY_APPEND_OPTION(CPPFLAGS, -D__MINGW_USE_VC2005_COMPAT)
 ])
 
 AS_CASE(["$target_os"],
@@ -825,15 +1069,33 @@ AS_CASE(["$target_os"],
 		    ],
 		    [macosx_10_5=yes], [macosx_10_5=no])
 		AC_MSG_RESULT($macosx_10_5)
+		AS_IF([test "${target_os@%:@darwin}" -ge 16], [
+		    ac_cv_func___syscall=no
+		    ac_cv_func_syscall=no
+		    ac_cv_header_sys_syscall_h=no
+		    ac_cv_header_syscall_h=no
+		])
 		if test $macosx_10_5 = yes; then
-		    ac_cv_header_ucontext_h=no
+		    ac_cv_func_getcontext=no
+		    ac_cv_func_setcontext=no
 		else
 		    AC_DEFINE(BROKEN_SETREUID, 1)
 		    AC_DEFINE(BROKEN_SETREGID, 1)
 		fi
+		incs=`$CC -v -E -xc - < /dev/null 2>&1 | sed ['1,/^@%:@include </d;s/^ *//;s|[^./][^/]*/\.\./||g;/\/include$/!d;s||/lib|;/\/usr\/lib/d']`
+		for d in `$CC -print-search-dirs | sed -e '/^libraries: */!d;s///' | tr : '\012' | fgrep -v /../ | sed -n 's|^\(/.*/lib\)/$|\1|p'`; do
+		    incs=`echo "$incs" | fgrep -v "$d"`
+		done
+		for d in $incs; do
+		    test -d "$d" && RUBY_APPEND_OPTIONS(LDFLAGS, "-L$d")
+		done
 		ac_cv_type_getgroups=gid_t # getgroups() on Rosetta fills garbage
 		ac_cv_lib_crypt_crypt=no
 		ac_cv_func_fdatasync=no # Mac OS X wrongly reports it has fdatasync()
+		ac_cv_func_vfork=no
+		if test $gcc_major -lt 4 -o \( $gcc_major -eq 4 -a $gcc_minor -lt 3 \); then
+		    ac_cv_func___builtin_setjmp=no
+		fi
                 AC_CACHE_CHECK(for broken crypt with 8bit chars, rb_cv_broken_crypt,
                     [AC_TRY_RUN([
 #include <stdio.h>
@@ -870,7 +1132,7 @@ main()
 		if test -n "$codesign"; then
 		    POSTLINK="test -z '\$(RUBY_CODESIGN)' || $codesign -s '\$(RUBY_CODESIGN)' -f \$@"
 		    LINK_SO="$LINK_SO
-$POSTLINK"
+\$(POSTLINK)"
 		fi
 		AC_CHECK_HEADERS(crt_externs.h, [], [], [
 		    #include <crt_externs.h>
@@ -878,20 +1140,66 @@ $POSTLINK"
 		],
 [hpux*], [	LIBS="-lm $LIBS"
 		ac_cv_c_inline=no],
-[beos*|haiku*], [
-		ac_cv_func_link=no
-		ac_cv_func_sched_yield=no
-		ac_cv_func_pthread_attr_setinheritsched=no
-		AS_CASE(["$target_os"],
-		[beos*], [ ac_cv_header_net_socket_h=yes],
-		[haiku*], [ ac_cv_func_shutdown=no])
-		LIBS="$LIBS" # m lib is include in root under BeOS/Haiku
+[solaris*], [	LIBS="-lm $LIBS"
+		ac_cv_func_vfork=no
+		AC_MSG_CHECKING(whether _XOPEN_SOURCE is already given)
+		AC_TRY_COMPILE([#include <unistd.h>
+		    #ifndef _XOPEN_SOURCE
+		    #error _XOPEN_SOURCE is not defined
+		    #endif
+		    ], [],
+		    [given_xopen_source=yes], [given_xopen_source=no])
+		AC_MSG_RESULT($given_xopen_source)
+		if test $given_xopen_source = no; then
+		  # On Solaris, with gcc, -std=iso9899:1999 in $ansi_options
+		  # is often also needed in CPPFLAGS, because some feature
+		  # definitions vary depending on such standards options.
+		  AS_CASE(["${ansi_options}"],
+		  [*-std=iso9899:1999*], [
+		    RUBY_APPEND_OPTIONS(CPPFLAGS, ${ansi_options})
+		  ])
+		  AC_MSG_CHECKING(appropriate _XOPEN_SOURCE value to define)
+		  define_xopen_source=""
+		  for tmp_xpg in 7 6 5; do
+		    if test x"$define_xopen_source" != x; then
+		        break
+		    fi
+		    # Both AC_TRY_CPP and AC_TRY_COMPILE should pass
+		    # because some options may not be set to CPPFLAGS.
+		    AC_TRY_CPP([
+			#define _XOPEN_SOURCE ${tmp_xpg}00
+			#include <unistd.h>
+			#ifndef _XPG${tmp_xpg}
+			#error _XPG${tmp_xpg} should be defined by _XOPEN_SOURCE=${tmp_xpg}00
+			#endif
+			], [
+			AC_TRY_COMPILE([
+			#define _XOPEN_SOURCE ${tmp_xpg}00
+			#include <unistd.h>
+			#ifndef _XPG${tmp_xpg}
+			#error _XPG${tmp_xpg} should be defined by _XOPEN_SOURCE=${tmp_xpg}00
+			#endif
+			], [],
+			[define_xopen_source=${tmp_xpg}00], [])
+			], [])
+		  done
+		  if test x"$define_xopen_source" = x; then
+		    define_xopen_source=no
+		  fi
+		  AC_MSG_RESULT($define_xopen_source)
+		  if test x"$define_xopen_source" != xno; then
+		    RUBY_APPEND_OPTIONS(CPPFLAGS, -D_XOPEN_SOURCE=$define_xopen_source)
+		  fi
+		fi
+		],
+[haiku*], [
+		LIBS="$LIBS" # m lib is include in root
 		],
 [cygwin*], [	ac_cv_header_langinfo_h=yes
 		AC_CHECK_FUNCS(cygwin_conv_path)
 		AC_LIBOBJ([langinfo])
 		],
-[mingw*], [	LIBS="-lshell32 -lws2_32 -limagehlp -lshlwapi $LIBS"
+[mingw*], [	LIBS="-lshell32 -lws2_32 -liphlpapi -limagehlp -lshlwapi $LIBS"
 		ac_cv_header_a_out_h=no
 		ac_cv_header_pwd_h=no
 		ac_cv_header_utime_h=no
@@ -902,6 +1210,7 @@ $POSTLINK"
 		ac_cv_header_sys_time_h=no
 		ac_cv_header_sys_times_h=no
 		ac_cv_header_sys_socket_h=no
+		ac_cv_func_lstat=yes
 		ac_cv_func_times=yes
 		ac_cv_func_waitpid=yes
 		ac_cv_func_fsync=yes
@@ -910,8 +1219,10 @@ $POSTLINK"
 		ac_cv_func_isinf=yes
 		ac_cv_func_isnan=yes
 		ac_cv_func_finite=yes
+		ac_cv_func_lchown=yes
 		ac_cv_func_link=yes
-		ac_cv_func_fseeko=yes
+		ac_cv_func_readlink=yes
+		ac_cv_func_symlink=yes
 		ac_cv_lib_crypt_crypt=no
 		ac_cv_func_getpgrp_void=no
 		ac_cv_func_memcmp_working=yes
@@ -923,10 +1234,20 @@ $POSTLINK"
 		ac_cv_func_gmtime_r=yes
 		rb_cv_large_fd_select=yes
 		ac_cv_type_struct_timeval=yes
+                ac_cv_func_clock_gettime=yes
+                ac_cv_func_clock_getres=yes
+		ac_cv_func_malloc_usable_size=no
+		{ test "$target_cpu" = x64 && ac_cv_func___builtin_setjmp=no; }
+		AC_CHECK_TYPE([NET_LUID], [], [],
+			      [@%:@include <winsock2.h>
+			      @%:@include <iphlpapi.h>])
+		if test x"$ac_cv_type_NET_LUID" = xyes; then
+		    AC_DEFINE(HAVE_TYPE_NET_LUID, 1)
+		fi
+		AC_CHECK_FUNCS(_gmtime64_s)
+		AC_CHECK_FUNCS(_wfreopen_s)
 		AC_LIBOBJ([langinfo])
 		],
-[os2-emx*], [	LIBS="-lm $LIBS"
-		ac_cv_lib_dir_opendir=no],
 [bsdi*], [	LIBS="-lm $LIBS"
 		AC_DEFINE(BROKEN_SETREUID, 1)
 		AC_DEFINE(BROKEN_SETREGID, 1)
@@ -937,55 +1258,166 @@ $POSTLINK"
 		ac_cv_func_shutdown=no
 		ac_cv_func_close=no
 		],
+[netbsd*], [	LIBS="-lm $LIBS"
+		],
 [dragonfly*], [	LIBS="-lm $LIBS"
 		# isinf() and isnan() are macros on DragonFly.
 		ac_cv_func_isinf=yes
 		ac_cv_func_isnan=yes
 		],
-[bow], [	ac_cv_func_setitimer=no
-		],
-[superux*], [	ac_cv_func_setitimer=no
+[aix*],[	LIBS="-lm $LIBS"
+		ac_cv_func_round=no
 		],
 [nacl], [
   LIBS="-lm $LIBS"
   if test "${nacl_cv_build_variant}" = "newlib"; then
     RUBY_APPEND_OPTION(CPPFLAGS, -DNACL_NEWLIB)
-    RUBY_APPEND_OPTION(LIBS, '-lnosys')
   else
     RUBY_APPEND_OPTION(XCFLAGS, -fPIC)
   fi
-  ac_cv_func_shutdown=no
-  ac_cv_func_fcntl=no
   ],
 [	LIBS="-lm $LIBS"])
 
+AC_CHECK_LIB(crypt, crypt)      # glibc (GNU/Linux, GNU/Hurd, GNU/kFreeBSD)
+AC_CHECK_LIB(dl, dlopen)	# Dynamic linking for SunOS/Solaris and SYSV
+AC_CHECK_LIB(dld, shl_load)	# Dynamic linking for HP-UX
+AC_CHECK_LIB(socket, shutdown)  # SunOS/Solaris
+
 dnl Checks for header files.
 AC_HEADER_DIRENT
 dnl AC_HEADER_STDC has been checked in AC_USE_SYSTEM_EXTENSIONS
 AC_HEADER_STDBOOL
 AC_HEADER_SYS_WAIT
-AC_CHECK_HEADERS(limits.h sys/file.h sys/ioctl.h sys/syscall.h\
-		 fcntl.h sys/fcntl.h sys/select.h sys/time.h sys/times.h sys/param.h\
-		 syscall.h pwd.h grp.h a.out.h utime.h direct.h sys/resource.h \
-		 sys/mkdev.h sys/utime.h xti.h netinet/in_systm.h float.h ieeefp.h \
-		 ucontext.h intrinsics.h langinfo.h locale.h sys/sendfile.h time.h \
-		 net/socket.h sys/socket.h process.h sys/prctl.h atomic.h)
+
+AC_CHECK_HEADERS(a.out.h)
+AC_CHECK_HEADERS(atomic.h)
+AC_CHECK_HEADERS(direct.h)
+AC_CHECK_HEADERS(grp.h)
+AC_CHECK_HEADERS(fcntl.h)
+AC_CHECK_HEADERS(float.h)
+AC_CHECK_HEADERS(ieeefp.h)
+AC_CHECK_HEADERS(intrinsics.h)
+AC_CHECK_HEADERS(langinfo.h)
+AC_CHECK_HEADERS(limits.h)
+AC_CHECK_HEADERS(locale.h)
+AC_CHECK_HEADERS(malloc.h)
+AC_CHECK_HEADERS(malloc/malloc.h)
+AC_CHECK_HEADERS(malloc_np.h)
+AC_CHECK_HEADERS(net/socket.h)
+AC_CHECK_HEADERS(process.h)
+AC_CHECK_HEADERS(pwd.h)
+AC_CHECK_HEADERS(setjmpex.h)
+AC_CHECK_HEADERS(sys/attr.h)
+AC_CHECK_HEADERS(sys/fcntl.h)
+AC_CHECK_HEADERS(sys/file.h)
+AC_CHECK_HEADERS(sys/id.h)
+AC_CHECK_HEADERS(sys/ioctl.h)
+AC_CHECK_HEADERS(sys/mkdev.h)
+AC_CHECK_HEADERS(sys/param.h)
+AC_CHECK_HEADERS(sys/prctl.h)
+AC_CHECK_HEADERS(sys/resource.h)
+AC_CHECK_HEADERS(sys/select.h)
+AC_CHECK_HEADERS(sys/sendfile.h)
+AC_CHECK_HEADERS(sys/socket.h)
+AC_CHECK_HEADERS(sys/syscall.h)
+AC_CHECK_HEADERS(sys/time.h)
+AC_CHECK_HEADERS(sys/times.h)
+AC_CHECK_HEADERS(sys/uio.h)
+AC_CHECK_HEADERS(sys/utime.h)
+AC_CHECK_HEADERS(syscall.h)
+AC_CHECK_HEADERS(time.h)
+AC_CHECK_HEADERS(ucontext.h)
+AC_CHECK_HEADERS(utime.h)
+
+AC_ARG_WITH([gmp],
+  [AS_HELP_STRING([--without-gmp],
+    [disable GNU GMP to accelerate Bignum operations])],
+  [],
+  [with_gmp=yes])
+AS_IF([test "x$with_gmp" != xno],
+  [AC_CHECK_HEADERS(gmp.h)
+   AS_IF([test "x$ac_cv_header_gmp_h" != xno],
+     AC_SEARCH_LIBS([__gmpz_init], [gmp],
+       [AC_DEFINE(HAVE_LIBGMP, 1)]))])
+
+AC_ARG_WITH([jemalloc],
+  [AS_HELP_STRING([--with-jemalloc],[use jemalloc allocator])],
+  [with_jemalloc=$withval], [with_jemalloc=no])
+AS_IF([test "x$with_jemalloc" = xyes],[
+  AC_SEARCH_LIBS([malloc_conf], [jemalloc],
+    [AC_DEFINE(HAVE_LIBJEMALLOC, 1)], [with_jemalloc=no])
+  AC_CHECK_HEADER(jemalloc/jemalloc.h, [
+    AC_DEFINE(RUBY_ALTERNATIVE_MALLOC_HEADER, [<jemalloc/jemalloc.h>])
+  ])
+  AS_IF([test "x$with_jemalloc" = xno], [
+    AC_CACHE_CHECK([for jemalloc with JEMALLOC_MANGLE], rb_cv_jemalloc_demangle,
+      [AC_LINK_IFELSE([AC_LANG_PROGRAM([@%:@define JEMALLOC_MANGLE 1
+      @%:@ifdef RUBY_ALTERNATIVE_MALLOC_HEADER
+      @%:@include RUBY_ALTERNATIVE_MALLOC_HEADER
+      @%:@else
+      @%:@include <jemalloc.h>
+      @%:@endif], [return !&malloc_conf])],
+      [rb_cv_jemalloc_demangle=yes],
+      [rb_cv_jemalloc_demangle=no])
+    ])
+  ])
+  AS_IF([test "x$rb_cv_jemalloc_demangle" = xyes], [
+    AC_DEFINE(JEMALLOC_MANGLE)
+    with_jemalloc=yes
+  ])
+  AS_IF([test "x$with_jemalloc" = xyes],
+    [
+      ac_cv_func_malloc_usable_size=yes
+    ],
+    [AC_MSG_ERROR([jemalloc requested but not found])
+  ])
+])
 
 dnl check for large file stuff
 mv confdefs.h confdefs1.h
 : > confdefs.h
 AC_SYS_LARGEFILE
+# On 32-bit Solaris, it is safe to define _LARGEFILE_SOURCE
+# which is not added by AC_SYS_LARGEFILE.
+if test x"$enable_largefile" != xno; then
+  AS_CASE(["$target_os"], [solaris*], [
+    AC_MSG_CHECKING([wheather _LARGEFILE_SOURCE should be defined])
+    AS_CASE(["${ac_cv_sys_file_offset_bits}:${ac_cv_sys_large_files}"],
+      ["64:"|"64:no"|"64:unknown"], [
+	# insert _LARGEFILE_SOURCE before _FILE_OFFSET_BITS line
+	# that is the same order as "getconf LFS_CFLAGS" output
+	mv confdefs.h largefile0.h
+	: > confdefs.h
+	AC_DEFINE(_LARGEFILE_SOURCE)
+	cat largefile0.h >> confdefs.h
+	rm largefile0.h
+	AC_MSG_RESULT([yes])
+      ], [AC_MSG_RESULT([no])])
+  ])
+fi
 mv confdefs.h largefile.h
 mv confdefs1.h confdefs.h
 cat largefile.h >> confdefs.h
 
-AS_CASE(["$target_os"],[mingw*], [ac_cv_type_off_t=yes;ac_cv_sizeof_off_t=8])
+AS_CASE(["$target_os"],
+    [mingw*], [ac_cv_type_off_t=yes;ac_cv_sizeof_off_t=8],
+    [aix*], [
+    AS_CASE(["$target_cpu:$ac_cv_sys_large_files"],
+	[ppc64:*|powerpc64:*], [],
+	[*:no|*:unknown], [],
+	[
+	    # AIX currently does not support a 32-bit call to posix_fadvise()
+	    # if _LARGE_FILES is defined.
+	    ac_cv_func_posix_fadvise=no
+	])
+    ])
 
 AC_C_BIGENDIAN
 AC_C_CONST
 AC_C_CHAR_UNSIGNED
 AC_C_INLINE
 AC_C_VOLATILE
+AC_C_TYPEOF
 
 AS_CASE(":$ac_cv_c_const:$ac_cv_c_volatile:",
     [*:no:*], [AC_MSG_ERROR(ANSI C-conforming const and volatile are mandatory)])
@@ -1089,11 +1521,31 @@ RUBY_CHECK_SIZEOF(void*, [int long "long long"], [ILP LP LLP])
 RUBY_CHECK_SIZEOF(float)
 RUBY_CHECK_SIZEOF(double)
 RUBY_CHECK_SIZEOF(time_t, [long "long long"], [], [@%:@include <time.h>])
+RUBY_CHECK_SIZEOF(clock_t, [], [], [@%:@include <time.h>])
+
+AC_CACHE_CHECK(packed struct attribute, rb_cv_packed_struct,
+    [rb_cv_packed_struct=no
+    for mac in \
+	"__pragma(pack(push, 1)) x __pragma(pack(pop))" \
+	"x __attribute__((packed))" \
+	; do
+	AC_TRY_COMPILE([@%:@define PACKED_STRUCT(x) $mac
+			PACKED_STRUCT(struct { int a; });], [],
+		[rb_cv_packed_struct=$mac; break])
+    done])
+packed_struct_unaligned=x
+if test "$rb_cv_packed_struct" != no; then
+    AC_DEFINE_UNQUOTED([PACKED_STRUCT(x)], [$rb_cv_packed_struct])
+else
+    AC_DEFINE_UNQUOTED([PACKED_STRUCT(x)], x)
+fi
+AC_DEFINE_UNQUOTED(PACKED_STRUCT_UNALIGNED(x), $packed_struct_unaligned)
 
 AC_DEFUN([RUBY_CHECK_PRINTF_PREFIX], [
 AC_CACHE_CHECK([for printf prefix for $1], [rb_cv_pri_prefix_]AS_TR_SH($1),[
     [rb_cv_pri_prefix_]AS_TR_SH($1)=[NONE]
-    RUBY_WERROR_FLAG(for pri in $2; do
+    RUBY_WERROR_FLAG(RUBY_APPEND_OPTIONS(CFLAGS, $rb_cv_wsuppress_flags)
+    for pri in $2; do
         AC_TRY_COMPILE(
             [@%:@include <stdio.h>
 	    @%:@include <stddef.h>
@@ -1120,6 +1572,11 @@ elif test "x$ac_cv_type___int64" = xyes; then
     RUBY_CHECK_PRINTF_PREFIX(__int64, ll I64, LL)
 fi
 
+dnl RUBY_CHECK_SIZEOF [typename] [if-signed] [if-unsigned] [included]
+AC_DEFUN([RUBY_CHECK_SIGNEDNESS], [dnl
+    AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([AC_INCLUDES_DEFAULT([$4])], [($1)-1 > 0])],
+		      [$3], [$2])])
+
 dnl RUBY_REPLACE_TYPE [typename] [default type] [macro type] [included]
 AC_DEFUN([RUBY_REPLACE_TYPE], [dnl
     AC_CHECK_TYPE([$1],
@@ -1132,10 +1589,7 @@ AC_DEFUN([RUBY_REPLACE_TYPE], [dnl
 	  [*" signed "*], [ ],
 	  [*" unsigned "*], [
 	    u=U],
-	  [
-	    AC_COMPILE_IFELSE(
-		[AC_LANG_BOOL_COMPILE_TRY([AC_INCLUDES_DEFAULT([$4])], [($n)-1 > 0])],
-		[u=U])])
+	  [RUBY_CHECK_SIGNEDNESS($n, [], [u=U], [$4])])
 	if test x"$t" = x; then
 	    for t in "long long" long int short; do
 		test -n "$u" && t="unsigned $t"
@@ -1159,8 +1613,19 @@ AC_DEFUN([RUBY_REPLACE_TYPE], [dnl
 	  [
 	    t=INT])
 	rb_cv_[$1]_convertible=${u}${t}])
-    test "${AS_TR_SH(ac_cv_type_[$1])}" = "yes" && n="$1"
+    if test "${AS_TR_SH(ac_cv_type_[$1])}" = "yes"; then
+	n="$1"
+    else
+	AS_CASE(["${rb_cv_[$1]_convertible}"],
+		[*LL], [n="long long"],
+		[*LONG], [n="long"],
+		[n="int"])
+	AS_CASE(["${rb_cv_[$1]_convertible}"],
+		[U*], [n="unsigned $n"])
+    fi
+    AS_CASE("${rb_cv_[$1]_convertible}", [U*], [u=+1], [u=-1])
     AC_DEFINE_UNQUOTED(rb_[$1], $n)
+    AC_DEFINE_UNQUOTED([SIGNEDNESS_OF_]AS_TR_CPP($1), $u)
     AC_DEFINE_UNQUOTED([$3]2NUM[(v)], [${rb_cv_[$1]_convertible}2NUM(v)])
     AC_DEFINE_UNQUOTED(NUM2[$3][(v)], [NUM2${rb_cv_[$1]_convertible}(v)])
     AC_DEFINE_UNQUOTED(PRI_[$3]_PREFIX,
@@ -1181,6 +1646,8 @@ RUBY_REPLACE_TYPE(rlim_t, [int long "long long"], RLIM, [
 @%:@endif
 @%:@include <sys/resource.h>
 ])
+RUBY_REPLACE_TYPE(off_t, [], OFFT)
+RUBY_REPLACE_TYPE(clockid_t, [], CLOCKID)
 
 AC_CACHE_CHECK(for prototypes, rb_cv_have_prototypes,
   [AC_TRY_COMPILE([int foo(int x) { return 0; }], [return foo(10);],
@@ -1277,48 +1744,81 @@ EOH
 ])dnl
 ])dnl
 
-dnl RUBY_FUNC_ATTRIBUTE(attrib, macroname, cachevar, condition)
-AC_DEFUN([RUBY_FUNC_ATTRIBUTE], [dnl
+dnl RUBY_DECL_ATTRIBUTE(attrib, macroname, cachevar, condition, type, code)
+AC_DEFUN([RUBY_DECL_ATTRIBUTE], [dnl
 m4_ifval([$2], dnl
-  [AS_VAR_PUSHDEF([attrib],[$2])], dnl
-  [AS_VAR_PUSHDEF([attrib],[FUNC_]AS_TR_CPP($1))] dnl
+  [AS_VAR_PUSHDEF([attrib], m4_bpatsubst([$2], [(.*)], []))], dnl
+  [AS_VAR_PUSHDEF([attrib], m4_toupper(m4_format(%.4s, [$5]))[_]AS_TR_CPP($1))] dnl
 )dnl
 m4_ifval([$3], dnl
   [AS_VAR_PUSHDEF([rbcv],[$3])], dnl
-  [AS_VAR_PUSHDEF([rbcv],[rb_cv_func_][$1])]dnl
+  [AS_VAR_PUSHDEF([rbcv],[rb_cv_]m4_format(%.4s, [$5])[_][$1])]dnl
 )dnl
+m4_pushdef([attrib_code],[m4_bpatsubst([$1],["],[\\"])])dnl
+m4_pushdef([attrib_params],[m4_bpatsubst([$2(x)],[^[^()]*(\([^()]*\)).*],[\1])])dnl
 m4_ifval([$4], [rbcv_cond=["$4"]; test "$rbcv_cond" || unset rbcv_cond])
-AC_CACHE_CHECK(for [$1] function attribute, rbcv,
+AC_CACHE_CHECK(for m4_ifval([$2],[m4_bpatsubst([$2], [(.*)], [])],[$1]) [$5] attribute, rbcv, dnl
 [rbcv=x
 RUBY_WERROR_FLAG([
-for mac in "__attribute__ (($1)) x" "x __attribute__ (($1))" "__declspec($1) x" x; do
+for mac in \
+    "__attribute__ ((attrib_code)) x" \
+    "x __attribute__ ((attrib_code))" \
+    "__declspec(attrib_code) x" \
+    x; do
   m4_ifval([$4],mac="$mac"${rbcv_cond+" /* only if $rbcv_cond */"})
   AC_TRY_COMPILE(
     m4_ifval([$4],${rbcv_cond+[@%:@if ]$rbcv_cond})
-[@%:@define ]attrib[(x) $mac]
+[@%:@define ]attrib[](attrib_params)[ $mac]
 m4_ifval([$4],${rbcv_cond+[@%:@else]}
-${rbcv_cond+[@%:@define ]attrib[(x) x]}
+${rbcv_cond+[@%:@define ]attrib[](attrib_params)[ x]}
 ${rbcv_cond+[@%:@endif]})
-    attrib[(void conftest_attribute_check(void));], [],
+$6
+    attrib[](attrib_params)[;], [],
     [rbcv="$mac"; break])
 done
 ])])
 if test "$rbcv" != x; then
-    RUBY_DEFINE_IF(m4_ifval([$4],[${rbcv_cond}]), attrib[(x)], $rbcv)
+    RUBY_DEFINE_IF(m4_ifval([$4],[${rbcv_cond}]), attrib[](attrib_params)[], $rbcv)
 fi
-m4_ifval([$4], [unset rbcv_cond])dnl
+m4_ifval([$4], [unset rbcv_cond]) dnl
+m4_popdef([attrib_params])dnl
+m4_popdef([attrib_code])dnl
 AS_VAR_POPDEF([attrib])dnl
 AS_VAR_POPDEF([rbcv])dnl
 ])
 
+dnl RUBY_FUNC_ATTRIBUTE(attrib, macroname, cachevar, condition)
+AC_DEFUN([RUBY_FUNC_ATTRIBUTE], [dnl
+    RUBY_DECL_ATTRIBUTE([$1], [$2], [$3], [$4],
+	[function], [@%:@define x void conftest_attribute_check(void)]
+    )
+])
+
+dnl RUBY_TYPE_ATTRIBUTE(attrib, macroname, cachevar, condition)
+AC_DEFUN([RUBY_TYPE_ATTRIBUTE], [dnl
+    RUBY_DECL_ATTRIBUTE([$1], [$2], [$3], [$4],
+	[type], [
+@%:@define x struct conftest_attribute_check {int i;}
+@%:@define mesg ("")
+])
+])
+
 RUBY_FUNC_ATTRIBUTE(noreturn, NORETURN)
 RUBY_FUNC_ATTRIBUTE(deprecated, DEPRECATED)
+RUBY_FUNC_ATTRIBUTE(deprecated("by "@%:@n), DEPRECATED_BY(n,x), rb_cv_func_deprecated_by)
+RUBY_TYPE_ATTRIBUTE(deprecated mesg, DEPRECATED_TYPE(mesg,x), rb_cv_type_deprecated)
 RUBY_FUNC_ATTRIBUTE(noinline, NOINLINE)
+RUBY_FUNC_ATTRIBUTE(weak, WEAK, rb_cv_func_weak)
+if test "$rb_cv_func_weak" != x; then
+   AC_DEFINE(HAVE_FUNC_WEAK)
+fi
 
 if_i386=${universal_binary+[defined __i386__]}
 RUBY_FUNC_ATTRIBUTE(stdcall,  [], [], ${if_i386})
 RUBY_FUNC_ATTRIBUTE(cdecl,    [], [], ${if_i386})
 RUBY_FUNC_ATTRIBUTE(fastcall, [], [], ${if_i386})
+RUBY_FUNC_ATTRIBUTE(optimize("O0"), FUNC_UNOPTIMIZED, rb_cv_func_unoptimized)
+RUBY_FUNC_ATTRIBUTE(optimize("-Os","-fomit-frame-pointer"), FUNC_MINIMIZED, rb_cv_func_minimized)
 
 if test "$GCC" = yes; then
     AC_CACHE_CHECK([for function alias], [rb_cv_gcc_function_alias],
@@ -1329,18 +1829,21 @@ if test "$GCC" = yes; then
 		[rb_cv_gcc_function_alias=$a; break])
 	done])
     if test "$rb_cv_gcc_function_alias" != no; then
+	AC_DEFINE(HAVE_ATTRIBUTE_FUNCTION_ALIAS)
 	AC_DEFINE_UNQUOTED([RUBY_ALIAS_FUNCTION_TYPE(type, prot, name, args)],
 			   [type prot __attribute__(($rb_cv_gcc_function_alias(@%:@name)));])
 	AC_DEFINE_UNQUOTED([RUBY_ALIAS_FUNCTION_VOID(prot, name, args)],
 			   [RUBY_ALIAS_FUNCTION_TYPE(void, prot, name, args)])
     fi
-    AC_CACHE_CHECK([for atomic builtins], [rb_cv_gcc_atomic_builtins], [
+
+    AC_CACHE_CHECK([for __atomic builtins], [rb_cv_gcc_atomic_builtins], [
 	AC_TRY_LINK([unsigned char atomic_var;],
 		    [
-			__sync_lock_test_and_set(&atomic_var, 0);
-			__sync_lock_test_and_set(&atomic_var, 1);
-			__sync_fetch_and_add(&atomic_var, 1);
-			__sync_fetch_and_sub(&atomic_var, 1);
+			__atomic_exchange_n(&atomic_var, 0, __ATOMIC_SEQ_CST);
+			__atomic_exchange_n(&atomic_var, 1, __ATOMIC_SEQ_CST);
+			__atomic_fetch_add(&atomic_var, 1, __ATOMIC_SEQ_CST);
+			__atomic_fetch_sub(&atomic_var, 1, __ATOMIC_SEQ_CST);
+			__atomic_or_fetch(&atomic_var, 1, __ATOMIC_SEQ_CST);
 		    ],
 		    [rb_cv_gcc_atomic_builtins=yes],
 		    [rb_cv_gcc_atomic_builtins=no])])
@@ -1348,10 +1851,26 @@ if test "$GCC" = yes; then
 	AC_DEFINE(HAVE_GCC_ATOMIC_BUILTINS)
     fi
 
+    AC_CACHE_CHECK([for __sync builtins], [rb_cv_gcc_sync_builtins], [
+	AC_TRY_LINK([unsigned char atomic_var;],
+		    [
+			__sync_lock_test_and_set(&atomic_var, 0);
+			__sync_lock_test_and_set(&atomic_var, 1);
+			__sync_fetch_and_add(&atomic_var, 1);
+			__sync_fetch_and_sub(&atomic_var, 1);
+			__sync_or_and_fetch(&atomic_var, 1);
+			__sync_val_compare_and_swap(&atomic_var, 0, 1);
+		    ],
+		    [rb_cv_gcc_sync_builtins=yes],
+		    [rb_cv_gcc_sync_builtins=no])])
+    if test "$rb_cv_gcc_sync_builtins" = yes; then
+	AC_DEFINE(HAVE_GCC_SYNC_BUILTINS)
+    fi
+
     AC_CACHE_CHECK(for __builtin_unreachable, rb_cv_func___builtin_unreachable,
     [RUBY_WERROR_FLAG(
-    [AC_TRY_LINK([@%:@include <stdlib.h>],
-	[exit(0); __builtin_unreachable();],
+    [AC_TRY_LINK([volatile int zero;],
+	[if (zero) __builtin_unreachable();],
 	[rb_cv_func___builtin_unreachable=yes],
 	[rb_cv_func___builtin_unreachable=no])
     ])
@@ -1376,15 +1895,53 @@ fi
 
 RUBY_APPEND_OPTION(XCFLAGS, -DRUBY_EXPORT)
 
+AC_CACHE_CHECK(for function name string predefined identifier,
+    rb_cv_function_name_string,
+    [rb_cv_function_name_string=no
+    RUBY_WERROR_FLAG([
+	for func in __func__ __FUNCTION__; do
+	    AC_TRY_LINK([@%:@include <stdio.h>],
+			[puts($func);],
+			[rb_cv_function_name_string=$func
+			break])
+	done
+    ])]
+)
+if test "$rb_cv_function_name_string" != no; then
+    AC_DEFINE_UNQUOTED(RUBY_FUNCTION_NAME_STRING, [$rb_cv_function_name_string])
+fi
+
+AC_CACHE_CHECK(if enum over int is allowed, rb_cv_enum_over_int, [
+    rb_cv_enum_over_int=no
+    if test "x$ac_cv_type_long_long" = xyes; then
+	type="unsigned long long" max="ULLONG_MAX"
+    else
+	type="unsigned long" max="ULONG_MAX"
+    fi
+    RUBY_WERROR_FLAG([
+        AC_COMPILE_IFELSE([
+            AC_LANG_BOOL_COMPILE_TRY([
+                    @%:@include <limits.h>
+                    enum {conftest_max = $max};
+                ], [
+                    (conftest_max == $max) &&
+                    (sizeof(conftest_max) == sizeof($type))
+                ]
+	    )],
+	    [rb_cv_enum_over_int=yes],
+	    [rb_cv_enum_over_int=no]
+	)
+    ])
+])
+if test $rb_cv_enum_over_int = yes; then
+    AC_DEFINE(ENUM_OVER_INT, 1)
+fi
+
 dnl Check whether we need to define sys_nerr locally
 AC_CHECK_DECLS([sys_nerr], [], [], [$ac_includes_default
 @%:@include <errno.h>])
 
-AC_CHECK_LIB(crypt, crypt)
-AC_CHECK_LIB(dl, dlopen)	# Dynamic linking for SunOS/Solaris and SYSV
-AC_CHECK_LIB(dld, shl_load)	# Dynamic linking for HP-UX
-AC_CHECK_LIB(socket, socketpair)	# SunOS/Solaris
-AC_CHECK_LIB(rt, clock_gettime)	# GNU/Linux
+AC_CHECK_DECLS([getenv])
 
 AS_CASE(["$target_cpu"],
 [alpha*|sh4|sh4el|sh4eb], [AS_CASE(["$target_os"::"$GCC"],
@@ -1404,6 +1961,8 @@ fi
 
 
 AC_TYPE_SIZE_T
+RUBY_CHECK_SIGNEDNESS(size_t, [AC_MSG_ERROR(size_t is signed)], [],
+		      [@%:@include <sys/types.h>])
 RUBY_CHECK_SIZEOF(size_t, [int long void*], [], [@%:@include <sys/types.h>])
 RUBY_CHECK_SIZEOF(ptrdiff_t, size_t, [], [@%:@include <stddef.h>])
 RUBY_CHECK_PRINTF_PREFIX(size_t, z)
@@ -1411,10 +1970,11 @@ RUBY_CHECK_PRINTF_PREFIX(ptrdiff_t, t)
 AC_STRUCT_ST_BLKSIZE
 AC_STRUCT_ST_BLOCKS
 AC_STRUCT_ST_RDEV
-RUBY_CHECK_SIZEOF([struct stat.st_size], [int long "long long"], [], [@%:@include <sys/stat.h>])
+RUBY_CHECK_SIZEOF([struct stat.st_size], [off_t int long "long long"], [], [@%:@include <sys/stat.h>])
 if test "$ac_cv_member_struct_stat_st_blocks" = yes; then
-    RUBY_CHECK_SIZEOF([struct stat.st_blocks], [int long "long long"], [], [@%:@include <sys/stat.h>])
+    RUBY_CHECK_SIZEOF([struct stat.st_blocks], [off_t int long "long long"], [], [@%:@include <sys/stat.h>])
 fi
+RUBY_CHECK_SIZEOF([struct stat.st_ino], [long "long long"], [], [@%:@include <sys/stat.h>])
 AC_CHECK_MEMBERS([struct stat.st_atim])
 AC_CHECK_MEMBERS([struct stat.st_atimespec])
 AC_CHECK_MEMBERS([struct stat.st_atimensec])
@@ -1424,6 +1984,7 @@ AC_CHECK_MEMBERS([struct stat.st_mtimensec])
 AC_CHECK_MEMBERS([struct stat.st_ctim])
 AC_CHECK_MEMBERS([struct stat.st_ctimespec])
 AC_CHECK_MEMBERS([struct stat.st_ctimensec])
+AC_CHECK_MEMBERS([struct stat.st_birthtimespec])
 
 AC_CHECK_TYPES([struct timeval], [], [], [@%:@ifdef HAVE_TIME_H
 @%:@include <time.h>
@@ -1432,6 +1993,24 @@ AC_CHECK_TYPES([struct timeval], [], [], [@%:@ifdef HAVE_TIME_H
 @%:@include <sys/time.h>
 @%:@endif])
 
+if test "${ac_cv_type_struct_timeval}" = yes; then
+    RUBY_CHECK_SIZEOF([struct timeval.tv_sec], [time_t long "long long"], [],
+		      [@%:@ifdef HAVE_TIME_H
+@%:@include <time.h>
+@%:@endif
+@%:@ifdef HAVE_SYS_TIME_H
+@%:@include <sys/time.h>
+@%:@endif])
+    AS_CASE(${ac_cv_sizeof_struct_timeval_tv_sec},
+	    [SIZEOF_INT], [t=int],
+	    [SIZEOF_LONG], [t=long],
+	    [SIZEOF_LONG_LONG], [t=LONG_LONG],
+	    [t=])
+    if test "${t}" != ""; then
+	AC_DEFINE_UNQUOTED(TYPEOF_TIMEVAL_TV_SEC, [$t])
+    fi
+fi
+
 AC_CHECK_TYPES([struct timespec], [], [], [@%:@ifdef HAVE_TIME_H
 @%:@include <time.h>
 @%:@endif
@@ -1493,8 +2072,6 @@ RUBY_DEFINT(int32_t, 4)
 RUBY_DEFINT(uint32_t, 4, unsigned)
 RUBY_DEFINT(int64_t, 8)
 RUBY_DEFINT(uint64_t, 8, unsigned)
-RUBY_DEFINT(int128_t, 16)
-RUBY_DEFINT(uint128_t, 16, unsigned)
 RUBY_DEFINT(intptr_t, void*)
 RUBY_DEFINT(uintptr_t, void*, unsigned)
 RUBY_DEFINT(ssize_t, size_t, [], [@%:@include <sys/types.h>])	dnl may differ from int, so not use AC_TYPE_SSIZE_T.
@@ -1512,8 +2089,12 @@ if test $rb_cv_stack_end_address != no; then
   AC_DEFINE_UNQUOTED(STACK_END_ADDRESS, $rb_cv_stack_end_address)
 fi
 
+# posix_memalign(memptr, alignment, size) implemented for OpenBSD 4.8 doesn't work if alignment > MALLOC_PAGESIZE.
+# [ruby-core:42158] https://bugs.ruby-lang.org/issues/5901
+# OpenBSD 5.2 fixed the problem. (src/lib/libc/stdlib/malloc.c:1.142)
+# MirOS #10semel has the problem but fixed in the repository.  (src/lib/libc/stdlib/malloc.c:1.9)
 AS_CASE(["$target_os"],
-[openbsd*], [
+[openbsd*|mirbsd*], [
   AC_CACHE_CHECK(for heap align log on openbsd, rb_cv_page_size_log,
     [rb_cv_page_size_log=no
      for page_log in 12 13; do
@@ -1600,16 +2181,36 @@ AS_CASE(["$target_os"],[freebsd*],[
 	 AC_DEFINE(BROKEN_CLOSE)
 	 AC_REPLACE_FUNCS(close)
 	 ])
-AC_REPLACE_FUNCS(dup2 memmove strerror\
-		 strchr strstr crypt flock\
-		 isnan finite isinf hypot acosh erf tgamma lgamma_r cbrt \
-                 strlcpy strlcat ffs setproctitle)
+
+AC_REPLACE_FUNCS(acosh)
+AC_REPLACE_FUNCS(cbrt)
+AC_REPLACE_FUNCS(crypt)
+AC_REPLACE_FUNCS(dup2)
+AC_REPLACE_FUNCS(erf)
+AC_REPLACE_FUNCS(explicit_bzero)
+AC_REPLACE_FUNCS(ffs)
+AC_REPLACE_FUNCS(finite)
+AC_REPLACE_FUNCS(flock)
+AC_REPLACE_FUNCS(hypot)
+AC_REPLACE_FUNCS(isinf)
+AC_REPLACE_FUNCS(isnan)
+AC_REPLACE_FUNCS(lgamma_r)
+AC_REPLACE_FUNCS(memmove)
+AC_REPLACE_FUNCS(nextafter)
+AC_REPLACE_FUNCS(setproctitle)
+AC_REPLACE_FUNCS(strchr)
+AC_REPLACE_FUNCS(strerror)
+AC_REPLACE_FUNCS(strlcat)
+AC_REPLACE_FUNCS(strlcpy)
+AC_REPLACE_FUNCS(strstr)
+AC_REPLACE_FUNCS(tgamma)
 
 # for missing/setproctitle.c
 AS_CASE(["$target_os"],
 [aix* | k*bsd*-gnu | kopensolaris*-gnu | linux* | darwin*], [AC_DEFINE(SPT_TYPE,SPT_REUSEARGV)],
 [hpux*], [AC_DEFINE(SPT_TYPE,SPT_PSTAT) ],
 [])
+AC_CHECK_HEADERS(sys/pstat.h)
 
 
 AC_CACHE_CHECK(for signbit, rb_cv_have_signbit,
@@ -1623,20 +2224,319 @@ if test "$rb_cv_have_signbit" = yes; then
 else
   AC_LIBOBJ([signbit])
 fi
-AC_CHECK_FUNCS(fmod killpg wait4 waitpid fork spawnv syscall __syscall chroot getcwd eaccess\
-	      truncate ftruncate ftello chsize times utimes utimensat fcntl lockf lstat\
-	      truncate64 ftruncate64 ftello64 fseeko fseeko64 \
-	      link symlink readlink readdir_r fsync fdatasync fchown posix_fadvise\
-	      setitimer setruid seteuid setreuid setresuid socketpair\
-	      setrgid setegid setregid setresgid issetugid pause lchown lchmod\
-	      getpgrp setpgrp getpgid setpgid initgroups getgroups setgroups\
-	      getpriority getrlimit setrlimit sysconf close getpwnam_r getgrnam_r\
-	      dlopen sigprocmask sigaction sigsetjmp _setjmp _longjmp\
-	      getsid setsid telldir seekdir fchmod cosh sinh tanh log2 round llabs\
-	      setuid setgid daemon select_large_fdset setenv unsetenv\
-              mktime timegm gmtime_r clock_gettime gettimeofday poll ppoll\
-              pread sendfile shutdown sigaltstack dl_iterate_phdr\
-              dup dup3 pipe2 posix_memalign memalign ioctl)
+
+AC_CACHE_CHECK(for broken memmem, rb_cv_broken_memmem, [
+    AC_TRY_RUN([
+@%:@include <string.h>
+
+int
+main(int argc, char **argv)
+{
+    const char *str = "hogefugafoobar";
+    const char *rs = "foo";
+    const char *empty = "";
+    char *p;
+
+    p = memmem(str, strlen(str), rs, strlen(rs));
+    if (p == str+8) {
+	p = memmem(str, strlen(str), empty, strlen(empty));
+	if (p == str)
+	    return 0;
+    }
+    return 1;
+}
+    ],
+    rb_cv_broken_memmem=no,
+    rb_cv_broken_memmem=yes,
+    rb_cv_broken_memmem=yes)
+])
+test x"$rb_cv_broken_memmem" = xyes && ac_cv_func_memmem=no
+
+AC_FUNC_FORK
+
+AC_CHECK_FUNCS(__syscall)
+AC_CHECK_FUNCS(_longjmp)		# used for AC_ARG_WITH(setjmp-type)
+# we don't use _setjmp if _longjmp doesn't exist.
+test x$ac_cv_func__longjmp = xno && ac_cv_func__setjmp=no
+AC_CHECK_FUNCS(_setjmp)			# used for AC_ARG_WITH(setjmp-type)
+AC_CHECK_FUNCS(_setjmpex)		# used for AC_ARG_WITH(setjmp-type)
+AC_CHECK_FUNCS(atan2l atan2f)
+AC_CHECK_FUNCS(chroot)
+AC_CHECK_FUNCS(chsize)
+AC_CHECK_FUNCS(clock_gettime)
+AC_CHECK_FUNCS(cosh)
+AC_CHECK_FUNCS(daemon)
+AC_CHECK_FUNCS(dirfd)
+AC_CHECK_FUNCS(dl_iterate_phdr)
+AC_CHECK_FUNCS(dlopen)
+AC_CHECK_FUNCS(dladdr)
+AC_CHECK_FUNCS(dup)
+AC_CHECK_FUNCS(dup3)
+AC_CHECK_FUNCS(eaccess)
+AC_CHECK_FUNCS(endgrent)
+AC_CHECK_FUNCS(fchmod)
+AC_CHECK_FUNCS(fchown)
+AC_CHECK_FUNCS(fcntl)
+AC_CHECK_FUNCS(fdatasync)
+AC_CHECK_FUNCS(fgetattrlist)
+AC_CHECK_FUNCS(fmod)
+AC_CHECK_FUNCS(fsync)
+AC_CHECK_FUNCS(ftruncate)
+AC_CHECK_FUNCS(ftruncate64)		# used for Win32 platform
+AC_CHECK_FUNCS(getattrlist)
+AC_CHECK_FUNCS(getcwd)
+AC_CHECK_FUNCS(getgidx)
+AC_CHECK_FUNCS(getgrnam)
+AC_CHECK_FUNCS(getgrnam_r)
+AC_CHECK_FUNCS(getgroups)
+AC_CHECK_FUNCS(getpgid)
+AC_CHECK_FUNCS(getpgrp)
+AC_CHECK_FUNCS(getpriority)
+AC_CHECK_FUNCS(getpwnam_r)
+AC_CHECK_FUNCS(getresgid)
+AC_CHECK_FUNCS(getresuid)
+AC_CHECK_FUNCS(getrlimit)
+AC_CHECK_FUNCS(getsid)
+AC_CHECK_FUNCS(gettimeofday)		# for making ac_cv_func_gettimeofday
+AC_CHECK_FUNCS(getuidx)
+AC_CHECK_FUNCS(gmtime_r)
+AC_CHECK_FUNCS(initgroups)
+AC_CHECK_FUNCS(ioctl)
+AC_CHECK_FUNCS(isfinite)
+AC_CHECK_FUNCS(issetugid)
+AC_CHECK_FUNCS(killpg)
+AC_CHECK_FUNCS(lchmod)
+AC_CHECK_FUNCS(lchown)
+AC_CHECK_FUNCS(link)
+AC_CHECK_FUNCS(llabs)
+AC_CHECK_FUNCS(lockf)
+AC_CHECK_FUNCS(log2)
+AC_CHECK_FUNCS(lstat)
+AC_CHECK_FUNCS(malloc_usable_size)
+AC_CHECK_FUNCS(malloc_size)
+AC_CHECK_FUNCS(mblen)
+AC_CHECK_FUNCS(memalign)
+AC_CHECK_FUNCS(memset_s)
+AC_CHECK_FUNCS(writev)
+AC_CHECK_FUNCS(memrchr)
+AC_CHECK_FUNCS(memmem)
+AC_CHECK_FUNCS(mkfifo)
+AC_CHECK_FUNCS(mknod)
+AC_CHECK_FUNCS(mktime)
+AC_CHECK_FUNCS(pipe2)
+AC_CHECK_FUNCS(poll)
+AC_CHECK_FUNCS(posix_fadvise)
+AC_CHECK_FUNCS(posix_memalign)
+AC_CHECK_FUNCS(ppoll)
+AC_CHECK_FUNCS(pread)
+AC_CHECK_FUNCS(qsort_r)
+AC_CHECK_FUNCS(readlink)
+AC_CHECK_FUNCS(round)
+AC_CHECK_FUNCS(sched_getaffinity)
+AC_CHECK_FUNCS(seekdir)
+AC_CHECK_FUNCS(select_large_fdset)
+AC_CHECK_FUNCS(sendfile)
+AC_CHECK_FUNCS(setegid)
+AC_CHECK_FUNCS(setenv)
+AC_CHECK_FUNCS(seteuid)
+AC_CHECK_FUNCS(setgid)
+AC_CHECK_FUNCS(setgroups)
+AC_CHECK_FUNCS(setpgid)
+AC_CHECK_FUNCS(setpgrp)
+AC_CHECK_FUNCS(setregid)
+AC_CHECK_FUNCS(setresgid)
+AC_CHECK_FUNCS(setresuid)
+AC_CHECK_FUNCS(setreuid)
+AC_CHECK_FUNCS(setrgid)
+AC_CHECK_FUNCS(setrlimit)
+AC_CHECK_FUNCS(setruid)
+AC_CHECK_FUNCS(setsid)
+AC_CHECK_FUNCS(setuid)
+AC_CHECK_FUNCS(shutdown)
+AC_CHECK_FUNCS(sigaction)
+AC_CHECK_FUNCS(sigaltstack)
+AC_CHECK_FUNCS(sigprocmask)
+AC_CHECK_FUNCS(sinh)
+AC_CHECK_FUNCS(spawnv)
+AC_CHECK_FUNCS(symlink)
+AC_CHECK_FUNCS(syscall)
+AC_CHECK_FUNCS(sysconf)
+AC_CHECK_FUNCS(tanh)
+AC_CHECK_FUNCS(telldir)
+AC_CHECK_FUNCS(timegm)
+AC_CHECK_FUNCS(times)
+AC_CHECK_FUNCS(truncate)
+AC_CHECK_FUNCS(truncate64)		# used for Win32
+AC_CHECK_FUNCS(unsetenv)
+AC_CHECK_FUNCS(utimensat)
+AC_CHECK_FUNCS(utimes)
+AC_CHECK_FUNCS(wait4)
+AC_CHECK_FUNCS(waitpid)
+
+AS_IF([test "$ac_cv_func_memset_s" = yes],
+    [RUBY_DEFINE_IF([!defined __STDC_WANT_LIB_EXT1__], [__STDC_WANT_LIB_EXT1__], 1)])
+
+AS_IF([test "$ac_cv_func_getcwd" = yes], [
+    AC_CACHE_CHECK(if getcwd allocates buffer if NULL is given, [rb_cv_getcwd_malloc],
+	[AC_TRY_RUN([
+@%:@include <stddef.h>
+@%:@include <stdio.h>
+@%:@ifdef HAVE_UNISTD_H
+@%:@include <unistd.h>
+@%:@endif
+@%:@ifndef EXIT_SUCCESS
+@%:@define EXIT_SUCCESS 0
+@%:@endif
+@%:@ifndef EXIT_FAILURE
+@%:@define EXIT_FAILURE 1
+@%:@endif
+
+int
+main(int argc, char **argv)
+{
+    if (!getcwd(NULL, 0)) return EXIT_FAILURE;
+    return EXIT_SUCCESS;
+}
+],
+	    rb_cv_getcwd_malloc=yes,
+	    rb_cv_getcwd_malloc=no,
+	    AS_CASE($target_os,
+		[linux*|darwin*|*bsd|cygwin*|mingw*|mswin*],
+		[rb_cv_getcwd_malloc=yes],
+		[rb_cv_getcwd_malloc=no]))])
+    AS_IF([test "$rb_cv_getcwd_malloc" = no], [AC_DEFINE(NO_GETCWD_MALLOC, 1)])
+])
+
+AC_DEFUN([RUBY_CHECK_BUILTIN_FUNC], [dnl
+AC_CACHE_CHECK([for $1], AS_TR_SH(rb_cv_builtin_$1),
+  [AC_LINK_IFELSE(
+    [AC_LANG_PROGRAM([int foo;], [$2;])],
+    [AS_TR_SH(rb_cv_builtin_$1)=yes],
+    [AS_TR_SH(rb_cv_builtin_$1)=no])])
+if test "${AS_TR_SH(rb_cv_builtin_$1)}" != no; then
+  AC_DEFINE(AS_TR_CPP(HAVE_BUILTIN_$1))
+fi])
+RUBY_CHECK_BUILTIN_FUNC(__builtin_bswap16, [__builtin_bswap16(0)])
+RUBY_CHECK_BUILTIN_FUNC(__builtin_bswap32, [__builtin_bswap32(0)])
+RUBY_CHECK_BUILTIN_FUNC(__builtin_bswap64, [__builtin_bswap64(0)])
+RUBY_CHECK_BUILTIN_FUNC(__builtin_clz, [__builtin_clz(0)])
+RUBY_CHECK_BUILTIN_FUNC(__builtin_clzl, [__builtin_clzl(0)])
+RUBY_CHECK_BUILTIN_FUNC(__builtin_clzll, [__builtin_clzll(0)])
+RUBY_CHECK_BUILTIN_FUNC(__builtin_choose_expr, [
+    [int x[__extension__(__builtin_choose_expr(1, 1, -1))]];
+    [int y[__extension__(__builtin_choose_expr(0, -1, 1))]];
+    ])
+if test x$rb_cv_builtin___builtin_choose_expr = xyes; then
+    RUBY_CHECK_BUILTIN_FUNC(__builtin_choose_expr_constant_p, [
+    [int x[__extension__(__builtin_choose_expr(__builtin_constant_p(1), 1, -1))]];
+    [int y[__extension__(__builtin_choose_expr(__builtin_constant_p(foo), -1, 1))]];
+    ])
+fi
+RUBY_CHECK_BUILTIN_FUNC(__builtin_types_compatible_p, [__builtin_types_compatible_p(int, int)])
+
+if test "$ac_cv_func_qsort_r" != no; then
+  AC_CACHE_CHECK(whether qsort_r is GNU version, rb_cv_gnu_qsort_r,
+    [AC_TRY_COMPILE([
+@%:@include <stdlib.h>
+void qsort_r(void *base, size_t nmemb, size_t size,
+	    int (*compar)(const void *, const void *, void *),
+	    void *arg);
+],[ ],
+      [rb_cv_gnu_qsort_r=yes],
+      [rb_cv_gnu_qsort_r=no])
+  ])
+  AC_CACHE_CHECK(whether qsort_r is BSD version, rb_cv_bsd_qsort_r,
+    [AC_TRY_COMPILE([
+@%:@include <stdlib.h>
+void qsort_r(void *base, size_t nmemb, size_t size,
+	     void *arg, int (*compar)(void *, const void *, const void *));
+],[ ],
+      [rb_cv_bsd_qsort_r=yes],
+      [rb_cv_bsd_qsort_r=no])
+  ])
+  AS_CASE("$rb_cv_gnu_qsort_r:$rb_cv_bsd_qsort_r",
+  [yes:no], [
+    AC_DEFINE(HAVE_GNU_QSORT_R, 1)
+  ],
+  [no:yes], [
+    AC_DEFINE(HAVE_BSD_QSORT_R, 1)
+  ])
+fi
+
+AC_CACHE_CHECK(whether atan2 handles Inf as C99, rb_cv_atan2_inf_c99, [
+    AS_IF([test $ac_cv_func_atan2f:$ac_cv_func_atan2l = yes:yes], [
+	AC_TRY_RUN([
+@%:@include <math.h>
+@%:@ifdef HAVE_UNISTD_H
+@%:@include <unistd.h>
+@%:@endif
+@%:@ifndef EXIT_SUCCESS
+@%:@define EXIT_SUCCESS 0
+@%:@endif
+@%:@ifndef EXIT_FAILURE
+@%:@define EXIT_FAILURE 1
+@%:@endif
+
+int
+main(int argc, char **argv)
+{
+    if (fabs(atan2(INFINITY, INFINITY) - M_PI_4) <= 0.01) return EXIT_SUCCESS;
+    return EXIT_FAILURE;
+}
+],
+	[rb_cv_atan2_inf_c99=yes],
+	[rb_cv_atan2_inf_c99=no],
+	[AS_CASE($target_os, [mingw*|mswin*], [rb_cv_atan2_inf_c99=no], [rb_cv_atan2_inf_c99=yes])]
+	)
+    ], [rb_cv_atan2_inf_c99=no])
+])
+AS_IF([test "x$rb_cv_atan2_inf_c99" = xyes], [AC_DEFINE(ATAN2_INF_C99)])
+
+AS_IF([test "x$ac_cv_func_lgamma_r" = xyes], [
+    AC_CACHE_CHECK(whether lgamma_r handles -0.0, rb_cv_lgamma_r_m0, [
+	AC_TRY_RUN([
+@%:@include <math.h>
+@%:@ifdef HAVE_UNISTD_H
+@%:@include <unistd.h>
+@%:@endif
+@%:@ifndef EXIT_SUCCESS
+@%:@define EXIT_SUCCESS 0
+@%:@endif
+@%:@ifndef EXIT_FAILURE
+@%:@define EXIT_FAILURE 1
+@%:@endif
+
+int
+main(int argc, char **argv)
+{
+    int sign;
+    double x = lgamma_r(-0.0, &sign);
+
+    /* should be [+inf, -1] */
+    if (x <= 0) return EXIT_FAILURE;
+    if (!isinf(x)) return EXIT_FAILURE;
+    if (sign != -1) return EXIT_FAILURE;
+    return EXIT_SUCCESS;
+}
+],
+	[rb_cv_lgamma_r_m0=yes],
+	[rb_cv_lgamma_r_m0=no],
+	[rb_cv_lgamma_r_m0=yes]
+	)
+    ])
+    AS_IF([test "x$rb_cv_lgamma_r_m0" = xno], [AC_DEFINE(LGAMMA_R_M0_FIX)])
+])
+
+# Some platform need -lrt for clock_gettime, but the other don't.
+if test x"$ac_cv_func_clock_gettime" != xyes; then
+    # glibc 2.17 moves clock_* functions from librt to the main C library.
+    # http://sourceware.org/ml/libc-announce/2012/msg00001.html
+    AC_CHECK_LIB(rt, clock_gettime)
+    if test x"$ac_cv_lib_rt_clock_gettime" = xyes; then
+	AC_DEFINE(HAVE_CLOCK_GETTIME, 1)
+    fi
+fi
+AC_CHECK_FUNCS(clock_getres) # clock_getres should be tested after clock_gettime test including librt test.
 
 AC_CACHE_CHECK(for unsetenv returns a value, rb_cv_unsetenv_return_value,
   [AC_TRY_COMPILE([
@@ -1648,49 +2548,86 @@ if test "$rb_cv_unsetenv_return_value" = no; then
   AC_DEFINE(VOID_UNSETENV)
 fi
 
+# used for AC_ARG_WITH(setjmp-type)
+AC_CACHE_CHECK(for sigsetjmp as a macro or function, ac_cv_func_sigsetjmp,
+  [AC_TRY_COMPILE([
+#include <setjmp.h>
+], [sigjmp_buf env; sigsetjmp(env,1);],
+	ac_cv_func_sigsetjmp=yes,
+	ac_cv_func_sigsetjmp=no)])
+
+AC_DEFUN([RUBY_CHECK_BUILTIN_SETJMP], [
+if test x"${ac_cv_func___builtin_setjmp}" = xyes; then
+   unset ac_cv_func___builtin_setjmp
+fi
 AC_CACHE_CHECK(for __builtin_setjmp, ac_cv_func___builtin_setjmp,
-[AC_TRY_LINK([@%:@include <setjmp.h>
-    jmp_buf jb; void t(v) int v; {__builtin_longjmp(jb, v);}],
-    [__builtin_setjmp(jb);],
-    [ac_cv_func___builtin_setjmp=yes],
-    [ac_cv_func___builtin_setjmp=no])
+    [
+    ac_cv_func___builtin_setjmp=no
+    for cast in "" "(void **)"; do
+	RUBY_WERROR_FLAG(
+	[AC_TRY_LINK([@%:@include <setjmp.h>
+	    @%:@include <stdio.h>
+	    jmp_buf jb;
+	    void t(void) {__builtin_longjmp($cast jb, 1);}
+	    int jump(void) {(void)(__builtin_setjmp($cast jb) ? 1 : 0); return 0;}],
+	    [
+	    void (*volatile f)(void) = t;
+	    if (!jump()) printf("%d\n", f != 0);
+	    ],
+	    [ac_cv_func___builtin_setjmp="yes with cast ($cast)"])
+	])
+	test "$ac_cv_func___builtin_setjmp" = no || break
+    done])
 ])
 
-test x$ac_cv_func__longjmp = xno && ac_cv_func__setjmp=no
-
+AC_DEFUN([RUBY_SETJMP_TYPE], [
+RUBY_CHECK_BUILTIN_SETJMP
 AC_MSG_CHECKING(for setjmp type)
+setjmp_suffix=
 AC_ARG_WITH(setjmp-type,
 	AS_HELP_STRING([--with-setjmp-type], [select setjmp type]),
 	[
 	AS_CASE([$withval],
-	[__builtin_setjmp], [ setjmp_prefix=__builtin_],
+	[__builtin_setjmp], [setjmp=__builtin_setjmp],
 	[_setjmp], [ setjmp_prefix=_],
 	[sigsetjmp], [ setjmp_prefix=sig],
 	[setjmp], [ setjmp_prefix=],
+	[setjmpex], [ setjmp_prefix= setjmp_suffix=ex],
 	[''], [ unset setjmp_prefix],
 	[   AC_MSG_ERROR(invalid setjmp type: $withval)])], [unset setjmp_prefix])
+setjmp_cast=
 if test ${setjmp_prefix+set}; then
-    if test "${setjmp_prefix}" && eval test '$ac_cv_func_'${setjmp_prefix}setjmp = no; then
-	AC_MSG_ERROR(${setjmp_prefix}setjmp is not available)
+    if test "${setjmp_prefix}" && eval test '$ac_cv_func_'${setjmp_prefix}setjmp${setjmp_suffix} = no; then
+	AC_MSG_ERROR(${setjmp_prefix}setjmp${setjmp_suffix} is not available)
     fi
-elif test "$ac_cv_func___builtin_setjmp" = yes; then
+elif { AS_CASE("$ac_cv_func___builtin_setjmp", [yes*], [true], [false]) }; then
+    setjmp_cast=`expr "$ac_cv_func___builtin_setjmp" : "yes with cast (\(.*\))"`
     setjmp_prefix=__builtin_
+    setjmp_suffix=
+elif test "$ac_cv_header_setjmpex_h:$ac_cv_func__setjmpex" = yes:yes; then
+    setjmp_prefix=
+    setjmp_suffix=ex
 elif test "$ac_cv_func__setjmp" = yes; then
     setjmp_prefix=_
+    setjmp_suffix=
 elif test "$ac_cv_func_sigsetjmp" = yes; then
     AS_CASE([$target_os],[solaris*|cygwin*],[setjmp_prefix=],[setjmp_prefix=sig])
+    setjmp_suffix=
 else
     setjmp_prefix=
+    setjmp_suffix=
 fi
 if test x$setjmp_prefix = xsig; then
     setjmp_sigmask=yes
 else
     unset setjmp_sigmask
 fi
-AC_MSG_RESULT(${setjmp_prefix}setjmp)
-AC_DEFINE_UNQUOTED([RUBY_SETJMP(env)], [${setjmp_prefix}setjmp(env${setjmp_sigmask+,0})])
-AC_DEFINE_UNQUOTED([RUBY_LONGJMP(env,val)], [${setjmp_prefix}longjmp(env,val)])
+AC_MSG_RESULT(${setjmp_prefix}setjmp${setjmp_suffix}${setjmp_cast:+\($setjmp_cast\)})
+AC_DEFINE_UNQUOTED([RUBY_SETJMP(env)], [${setjmp_prefix}setjmp${setjmp_suffix}($setjmp_cast(env)${setjmp_sigmask+,0})])
+AC_DEFINE_UNQUOTED([RUBY_LONGJMP(env,val)], [${setjmp_prefix}longjmp($setjmp_cast(env),val)])
 AC_DEFINE_UNQUOTED(RUBY_JMP_BUF, ${setjmp_sigmask+${setjmp_prefix}}jmp_buf)
+])
+# End of setjmp check.
 
 AC_ARG_ENABLE(setreuid,
        AS_HELP_STRING([--enable-setreuid], [use setreuid()/setregid() according to need even if obsolete]),
@@ -1836,7 +2773,7 @@ main()
 ],
 	rb_cv_localtime_overflow=yes,
 	rb_cv_localtime_overflow=no,
-	rb_cv_localtime_overflow=yes)])
+	rb_cv_localtime_overflow=no)])
 if test "$rb_cv_localtime_overflow" = no; then
   AC_DEFINE(LOCALTIME_OVERFLOW_PROBLEM)
 fi
@@ -1874,12 +2811,27 @@ main()
 fi
 
 if test "$ac_cv_func_getpgid" = no; then
+  # AC_FUNC_GETPGRP fails when cross-compiling with old autoconf.
+  # autoconf is changed between 2.52d and 2.52f?
+  # http://lists.gnu.org/archive/html/bug-gnu-utils/2001-09/msg00181.html
+  # "autoconf cleanup for AC_FUNC_GETPGRP and GETPGRP_VOID"
 AC_FUNC_GETPGRP
 fi
 if test "$ac_cv_func_setpgid:$ac_cv_func_setpgrp" = no:yes; then
+  # AC_FUNC_SETPGRP fails when cross-compiling.  (until autoconf 2.69?)
+  # https://lists.gnu.org/archive/html/bug-autoconf/2013-02/msg00002.html
+  # "AC_FUNC_SETPGRP fails to work properly when cross-compiling"
 AC_FUNC_SETPGRP
 fi
 
+if test x"$ac_cv_func_dirfd" = xno; then
+  AS_CASE(["$target_os"],[solaris*],
+          [AC_CHECK_MEMBERS([DIR.d_fd, DIR.dd_fd],,,[
+#include <sys/types.h>
+#include <dirent.h>
+])])
+fi
+
 if test x"$target_cpu" = xia64; then
     AC_LIBOBJ([ia64])
     AC_CACHE_CHECK(for __libc_ia64_register_backing_store_base,
@@ -1905,96 +2857,8 @@ else
   AC_DEFINE(RSHIFT(x,y), (((x)<0) ? ~((~(x))>>(int)(y)) : (x)>>(int)(y)))
 fi
 
-# win32.c still use this. Don't remove it.
-test "$rb_cv_fcnt" = "not found" && rb_cv_fcnt="not found (OK if using GNU libc)"
-AC_CACHE_CHECK([read count field in FILE structures], rb_cv_fcnt,
-[rb_cv_fcnt="not found (OK if using GNU libc)"
-for fcnt in	dnl
-     _cnt	dnl
-     __cnt	dnl
-     _r		dnl
-     readCount	dnl
-     _rcount	dnl for emx0.9c
-; do
-    AC_TRY_COMPILE([#include <stdio.h>
-],
-	[FILE *f = stdin; f->$fcnt = 0;],
-	[rb_cv_fcnt="$fcnt"; break])
-done])
-AS_CASE("$rb_cv_fcnt",
-	["not found"*], [rb_cv_fcnt="not found"],
-	[AC_DEFINE_UNQUOTED(FILE_COUNT, $rb_cv_fcnt)])
-
-# win32.c still use this. Don't remove it.
-AC_CACHE_CHECK([read buffer ptr field in FILE structures], rb_cv_frptr,
-[for frptr in	dnl
-     _IO_read_ptr dnl
-     _ptr	dnl
-     __ptr	dnl
-     bufpos	dnl
-     _p	dnl
-     __bufpos	dnl
-; do
-    AC_TRY_COMPILE([#include <stdio.h>
-],
-	[FILE *f = stdin; char buf[256]; f->$frptr = buf;],
-	rb_cv_frptr="$frptr"; break,
-	rb_cv_frptr="not found")
-done])
-if test "$rb_cv_frptr" != "not found"; then
-  AC_DEFINE_UNQUOTED(FILE_READPTR, $rb_cv_frptr)
-
-  if test "$rb_cv_fcnt" = "not found"; then
-    AC_CACHE_CHECK([read buffer end field in FILE structures], rb_cv_frend,
-    [for frend in	dnl
-         _IO_read_end	dnl
-         bufread 	dnl
-         __bufread 	dnl
-    ; do
-        AC_TRY_COMPILE([#include <stdio.h>
-    ],
-	[FILE *f = stdin; char buf[256]; f->$frend = buf;],
-	rb_cv_frend="$frend"; break,
-	rb_cv_frend="not found")
-    done])
-    if test "$rb_cv_frend" != "not found"; then
-      AC_DEFINE_UNQUOTED(FILE_READEND, $rb_cv_frend)
-    fi
-  fi
-fi
-
-RUBY_CHECK_SIZEOF([struct stat.st_ino], [long "long long"], [], [@%:@include <sys/stat.h>])
-
-AC_CACHE_CHECK([whether struct dirent.d_name is too small], rb_cv_sizeof_struct_dirent_too_small,
-  [AC_COMPILE_IFELSE(
-    [AC_LANG_BOOL_COMPILE_TRY([AC_INCLUDES_DEFAULT([
-@%:@if defined _WIN32
-@%:@ error <<<struct direct in win32/dir.h has variable length d_name>>>
-@%:@elif defined HAVE_DIRENT_H
-@%:@ include <dirent.h>
-@%:@elif defined HAVE_DIRECT_H
-@%:@ include <direct.h>
-@%:@else
-@%:@ define dirent direct
-@%:@ if HAVE_SYS_NDIR_H
-@%:@  include <sys/ndir.h>
-@%:@ endif
-@%:@ if HAVE_SYS_DIR_H
-@%:@  include <sys/dir.h>
-@%:@ endif
-@%:@ if HAVE_NDIR_H
-@%:@  include <ndir.h>
-@%:@ endif
-@%:@endif
-@%:@include <stddef.h>
-@%:@define numberof(array) [(int)(sizeof(array) / sizeof((array)[0]))]
-struct dirent d;
-])],
-      [offsetof(struct dirent, [d_name[numberof(d.d_name)]]) - offsetof(struct dirent, d_name) < 256])],
-    [rb_cv_sizeof_struct_dirent_too_small=yes],
-    [rb_cv_sizeof_struct_dirent_too_small=no])])
-if test "$rb_cv_sizeof_struct_dirent_too_small" = yes; then
-  AC_DEFINE(SIZEOF_STRUCT_DIRENT_TOO_SMALL, 1)
+if test x"$ac_cv_func_gettimeofday" != xyes; then
+    AC_MSG_ERROR(gettimeofday() must exist)
 fi
 
 if test "$ac_cv_func_sysconf" = yes; then
@@ -2013,7 +2877,7 @@ if test "$ac_cv_func_sysconf" = yes; then
   RUBY_CHECK_SYSCONF(CLK_TCK)
 fi
 
-AC_DEFUN(RUBY_STACK_GROW_DIRECTION, [
+AC_DEFUN([RUBY_STACK_GROW_DIRECTION], [
     AS_VAR_PUSHDEF([stack_grow_dir], [rb_cv_stack_grow_dir_$1])
     AC_CACHE_CHECK(stack growing direction on $1, stack_grow_dir, [
 AS_CASE(["$1"],
@@ -2089,30 +2953,109 @@ if test x"$enable_pthread" = xyes; then
 	[root], [],
 	[c_r],  [MAINLIBS="-pthread $MAINLIBS"],
 	        [AS_CASE(["$target_os"],
-		    [openbsd*], [LIBS="-pthread $LIBS"],
+		    [openbsd*|mirbsd*], [LIBS="-pthread $LIBS"],
 		    [LIBS="-l$pthread_lib $LIBS"])])
     else
 	AC_MSG_WARN("Don't know how to find pthread library on your system -- thread support disabled")
     fi
+    AC_CACHE_CHECK([whether pthread_t is scalar type], [rb_cv_scalar_pthread_t], [
+	AC_TRY_COMPILE([
+	    @%:@include <pthread.h>
+	    ], [
+	    pthread_t thread_id;
+	    thread_id = 0;
+	    if (!thread_id) return 0;
+	    ], [rb_cv_scalar_pthread_t=yes], [rb_cv_scalar_pthread_t=no])
+    ])
+    if test x"$rb_cv_scalar_pthread_t" = xyes; then
+	: # RUBY_CHECK_SIZEOF(pthread_t, [void* int long], [], [@%:@include <pthread.h>])
+    else
+	AC_DEFINE(NON_SCALAR_THREAD_ID)
+    fi
     AC_CHECK_FUNCS(sched_yield pthread_attr_setinheritsched \
-	pthread_getattr_np pthread_attr_get_np pthread_attr_getstack\
+	pthread_attr_get_np pthread_attr_getstack\
 	pthread_get_stackaddr_np pthread_get_stacksize_np \
 	thr_stksegment pthread_stackseg_np pthread_getthrds_np \
 	pthread_cond_init pthread_condattr_setclock pthread_condattr_init \
-        pthread_sigmask)
+	pthread_sigmask pthread_setname_np pthread_set_name_np)
+    AS_CASE(["$target_os"],[aix*],[ac_cv_func_pthread_getattr_np=no],[AC_CHECK_FUNCS(pthread_getattr_np)])
     if test "${host_os}" = "nacl"; then
       ac_cv_func_pthread_attr_init=no
     else
       AC_CHECK_FUNCS(pthread_attr_init)
     fi
+    set_current_thread_name=
+    if test "$ac_cv_func_pthread_setname_np" = yes; then
+	AC_CACHE_CHECK([arguments of pthread_setname_np], [rb_cv_func_pthread_setname_np_arguments],
+	    [rb_cv_func_pthread_setname_np_arguments=
+	    # Linux,AIX,  (pthread_self(), name)
+	    # NetBSD (pthread_self(), name, \"%s\")
+	    # Darwin (name)
+	    for mac in \
+		"(pthread_self(), name)" \
+		"(pthread_self(), name, \"%s\")" \
+		"(name)" \
+		; do
+		AC_TRY_COMPILE([
+		    @%:@include <pthread.h>
+		    @%:@ifdef HAVE_PTHREAD_NP_H
+		    @%:@include <pthread_np.h>
+		    @%:@endif
+		    @%:@define SET_THREAD_NAME(name) pthread_setname_np${mac}
+		    ],
+		    [if (SET_THREAD_NAME("conftest")) return 1;],
+		    [rb_cv_func_pthread_setname_np_arguments="${mac}"
+		    break])
+	    done
+	    ]
+	)
+	if test -n "${rb_cv_func_pthread_setname_np_arguments}"; then
+	    set_current_thread_name="pthread_setname_np${rb_cv_func_pthread_setname_np_arguments}"
+	fi
+    elif test "$ac_cv_func_pthread_set_name_np" = yes; then
+	set_current_thread_name="pthread_set_name_np(pthread_self(), name)"
+    fi
+    AS_IF([test -n "$set_current_thread_name"], [
+	AC_DEFINE_UNQUOTED(SET_CURRENT_THREAD_NAME(name), $set_current_thread_name)
+	AS_CASE([$set_current_thread_name],
+	    [*'pthread_self()'*], [
+		set_another_thread_name=`echo "$set_current_thread_name" | sed 's/pthread_self()/thid/'`
+		AC_DEFINE_UNQUOTED(SET_ANOTHER_THREAD_NAME(thid,name), $set_another_thread_name)
+	    ])
+    ])
 fi
-if test x"$ac_cv_header_ucontext_h" = xyes; then
+
+if test x"$ac_cv_header_ucontext_h" = xno; then
+    AC_CACHE_CHECK([if signal.h defines ucontext_t], [rb_cv_ucontext_in_signal_h],
+	[AC_TRY_COMPILE([@%:@include <signal.h>],
+	[size_t size = sizeof(ucontext_t);],
+	[rb_cv_ucontext_in_signal_h=yes], [rb_cv_ucontext_in_signal_h=no])])
+    if test x"$rb_cv_ucontext_in_signal_h" = xyes; then
+	    AC_DEFINE_UNQUOTED(UCONTEXT_IN_SIGNAL_H, 1)
+    fi
+fi
+if test x"$ac_cv_header_ucontext_h" = xyes -o x"$rb_cv_ucontext_in_signal_h" = xyes; then
+    AC_CACHE_CHECK([if mcontext_t is a pointer], [rb_cv_mcontext_t_ptr],
+	[AC_TRY_COMPILE([
+	    @%:@include <signal.h>
+	    @%:@ifdef HAVE_UCONTEXT_H
+	    @%:@include <ucontext.h>
+	    @%:@endif
+        mcontext_t test(mcontext_t mc) {return mc+1;}
+	],
+	[test(0);],
+	[rb_cv_mcontext_t_ptr=yes], [rb_cv_mcontext_t_ptr=no])])
+    if test x"$rb_cv_mcontext_t_ptr" = xyes; then
+	AC_DEFINE_UNQUOTED(DEFINE_MCONTEXT_PTR(mc, uc), mcontext_t mc = (uc)->uc_mcontext)
+    else
+	AC_DEFINE_UNQUOTED(DEFINE_MCONTEXT_PTR(mc, uc), mcontext_t *mc = &(uc)->uc_mcontext)
+    fi
     if test x"$rb_with_pthread" = xyes; then
 	AC_CHECK_FUNCS(getcontext setcontext)
     fi
 fi
 
-if test "$ac_cv_func_fork" = "yes" -a "$rb_with_pthread" = "yes"; then
+if test "$ac_cv_func_fork_works" = "yes" -a "$rb_with_pthread" = "yes"; then
     AC_CACHE_CHECK([if fork works with pthread], rb_cv_fork_with_pthread,
 	[AC_TRY_RUN([
 #include <stdlib.h>
@@ -2196,8 +3139,8 @@ AC_ARG_WITH(dln-a-out,
 
 AC_CACHE_CHECK(whether ELF binaries are produced, rb_cv_binary_elf,
 [AC_TRY_LINK([],[], [
-AS_CASE(["`head -1 conftest$EXEEXT | cat -e`"],
-['^?ELF'*], [rb_cv_binary_elf=yes], [rb_cv_binary_elf=no])],
+AS_CASE(["`head -1 conftest$EXEEXT | tr -dc '\177ELF' | tr '\177' .`"],
+[.ELF*], [rb_cv_binary_elf=yes], [rb_cv_binary_elf=no])],
 rb_cv_binary_elf=no)])
 
 if test "$rb_cv_binary_elf" = yes; then
@@ -2230,9 +3173,9 @@ AC_SUBST(LDSHAREDXX)dnl
 AC_SUBST(DLEXT)dnl
 AC_SUBST(DLEXT2)dnl
 AC_SUBST(LIBEXT)dnl
+AC_SUBST(ASMEXT, S)dnl
 
 STATIC=
-: ${PATHFLAG=''}
 
 if test "$with_dln_a_out" != yes; then
   rb_cv_dlopen=unknown
@@ -2248,7 +3191,7 @@ if test "$with_dln_a_out" != yes; then
       # mkmf.rb's have_header() to fail if the desired resource happens to be
       # installed in the /usr/local tree.
       RUBY_APPEND_OPTION(CCDLFLAGS, -fno-common)],
-    [bsdi*|beos*|haiku*|cygwin*|mingw*|aix*|interix*], [ ],
+    [bsdi*|cygwin*|mingw*|aix*|interix*], [ ],
     [
       RUBY_APPEND_OPTION(CCDLFLAGS, -fPIC)])
   else
@@ -2265,20 +3208,14 @@ if test "$with_dln_a_out" != yes; then
        AS_HELP_STRING([--enable-rpath], [embed run path into extension libraries.
        enabled by default on ELF platforms]),
        [enable_rpath=$enableval], [enable_rpath="$rb_cv_binary_elf"])
-  if test "$enable_rpath" = yes; then
-    RPATHFLAG=" ${linker_flag}-R%1\$-s"
-  fi
 
   AS_CASE(["$target_os"],
 	[hpux*], [	DLDFLAGS="$DLDFLAGS -E"
 			: ${LDSHARED='$(LD) -b'}
 			XLDFLAGS="$XLDFLAGS -Wl,-E"
 			: ${LIBPATHENV=SHLIB_PATH}
-			if test "$rb_cv_prog_gnu_ld" = no; then
-			    RPATHFLAG=' +b %1$-s'
-			fi
 			rb_cv_dlopen=yes],
-	[solaris*], [ 	if test "$GCC" = yes; then
+	[solaris*], [	if test "$GCC" = yes; then
 			    : ${LDSHARED='$(CC) -shared'}
 			    if test "$rb_cv_prog_gnu_ld" = yes; then
 				LDFLAGS="$LDFLAGS -Wl,-E"
@@ -2288,6 +3225,10 @@ if test "$with_dln_a_out" != yes; then
 			fi
 			if test "$ac_cv_sizeof_voidp" = 8; then
 			    : ${LIBPATHENV=LD_LIBRARY_PATH_64}
+			    : ${PRELOADENV=LD_PRELOAD_64}
+			else
+			    : ${LIBPATHENV=LD_LIBRARY_PATH_32}
+			    : ${PRELOADENV=LD_PRELOAD_32}
 			fi
 			rb_cv_dlopen=yes],
 	[sunos*], [	: ${LDSHARED='$(LD) -assert nodefinitions'}
@@ -2305,7 +3246,7 @@ if test "$with_dln_a_out" != yes; then
 	[bsdi3*], [	AS_CASE(["$CC"],
 			[*shlicc*], [	: ${LDSHARED='$(CC) -r'}
 					rb_cv_dlopen=yes])],
-	[linux* | gnu* | k*bsd*-gnu | netbsd* | bsdi* | kopensolaris*-gnu], [
+	[linux* | gnu* | k*bsd*-gnu | netbsd* | bsdi* | kopensolaris*-gnu | haiku*], [
 			: ${LDSHARED='$(CC) -shared'}
 			if test "$rb_cv_binary_elf" = yes; then
 			    LDFLAGS="$LDFLAGS -Wl,-export-dynamic"
@@ -2319,7 +3260,7 @@ if test "$with_dln_a_out" != yes; then
 			: ${LDSHARED='$(CC) -shared'}
 			if test "$rb_cv_binary_elf" = yes; then
 			    LDFLAGS="$LDFLAGS -rdynamic"
-			    DLDFLAGS="$DLDFLAGS "'-Wl,-soname,$(.TARGET)'
+			    DLDFLAGS="$DLDFLAGS "'-Wl,-soname,$@'
 			else
 			  test "$GCC" = yes && test "$rb_cv_prog_gnu_ld" = yes || LDSHARED='$(LD) -Bshareable'
 			fi
@@ -2330,17 +3271,9 @@ if test "$with_dln_a_out" != yes; then
 			fi
 			rb_cv_dlopen=yes],
 	[darwin*], [	: ${LDSHARED='$(CC) -dynamic -bundle'}
-			: ${DLDFLAGS="${linker_flag}-undefined${linker_flag:+,}dynamic_lookup ${linker_flag}-multiply_defined${linker_flag:+,}suppress"}
 			: ${LDFLAGS=""}
 			: ${LIBPATHENV=DYLD_LIBRARY_PATH}
-			# /usr/local/include is always searched for
-			# some reason, but /usr/local/lib is not.
-			hdr=`find /usr/local/include -name \*.h -type f | sed 's:^/usr/local/include/::;q'`
-			if test -n "$hdr" && $CC -E -include "$hdr" -xc - </dev/null 2>/dev/null | fgrep -q "$hdr"; then
-			    $CC -print-search-dirs | grep -q '^libraries:.*:/usr/local/lib/*' ||
-			    echo " $LDFLAGS " | grep -q ' -L */usr/local/lib/* ' ||
-			    LDFLAGS="${LDFLAGS:+$LDFLAGS }-L/usr/local/lib"
-			fi
+			: ${PRELOADENV=DYLD_INSERT_LIBRARIES}
 			rb_cv_dlopen=yes],
         [aix*], [	: ${LDSHARED='$(CC)'}
 			LDSHARED="$LDSHARED ${linker_flag}-G"
@@ -2351,34 +3284,7 @@ if test "$with_dln_a_out" != yes; then
                         TRY_LINK='$(CC) $(LDFLAGS) -oconftest $(INCFLAGS) -I$(hdrdir) $(CPPFLAGS)'
                         TRY_LINK="$TRY_LINK"' $(CFLAGS) $(src) $(LIBPATH) $(LOCAL_LIBS) $(LIBS)'
 			: ${LIBPATHENV=LIBPATH}
-			RPATHFLAG=" ${linker_flag}-blibpath:%1\$-s:${prefix}/lib:${LIBPATH:-/usr/lib:/lib}"
 			rb_cv_dlopen=yes],
-	[beos*], [	AS_CASE(["$target_cpu"],
-			  [powerpc*], [
-			    : ${LDSHARED='$(LD) -xms'}
-			    EXTDLDFLAGS='-export $(TARGET_ENTRY)'
-			    DLDFLAGS="$DLDFLAGS -lbe -lroot glue-noinit.a init_term_dyn.o start_dyn.o"
-			    LDFLAGS="$LDFLAGS -L/boot/home/config/lib -lbe -lroot"
-			    ],
-			  [i586*], [
-			    : ${LDSHARED='$(LD) -shared'}
-			    DLDFLAGS="$DLDFLAGS -L/boot/develop/lib/x86 -L/boot/home/config/lib \$(topdir)/_APP_ -lroot"
-			    LDFLAGS="$LDFLAGS -L/boot/develop/lib/x86 -L/boot/home/config/lib -lroot"
-			    ])
-			: ${LIBPATHENV=LIBRARY_PATH}
-			rb_cv_dlopen=yes],
-	[haiku*], [	AS_CASE(["$target_cpu"],
-			  [powerpc*], [
-			    : ${LDSHARED='$(LD) -xms'}
-			    EXTDLDFLAGS='-export $(TARGET_ENTRY)'
-			    DLDFLAGS="$DLDFLAGS -lroot glue-noinit.a init_term_dyn.o start_dyn.o"
-                            ],
-			  [i586*], [
-			    : ${LDSHARED='$(LD) -shared'}
-			    DLDFLAGS="$DLDFLAGS -L/boot/develop/lib/x86 -lroot"
-			    ])
-			: ${LIBPATHENV=LIBRARY_PATH}
-			rb_cv_dlopen=yes ],
 	[nto-qnx*], [	DLDFLAGS="$DLDFLAGS -L/lib -L/usr/lib -L/usr/local/lib"
 			: ${LDSHARED='$(LD) -Bshareable -x'}
 			LDFLAGS="$LDFLAGS -L/lib -L/usr/lib -L/usr/local/lib"
@@ -2388,15 +3294,36 @@ if test "$with_dln_a_out" != yes; then
 			XLDFLAGS="$XLDFLAGS -Wl,--stack,0x00200000,--enable-auto-import"
 			DLDFLAGS="${DLDFLAGS} -Wl,--enable-auto-image-base,--enable-auto-import"
 			: ${LIBPATHENV=""}
+			: ${PRELOADENV=""}
 			rb_cv_dlopen=yes],
 	[hiuxmpp], [	: ${LDSHARED='$(LD) -r'}],
 	[atheos*], [	: ${LDSHARED='$(CC) -shared'}
 			rb_cv_dlopen=yes],
-	[os2-emx*], [	LDFLAGS="$LDFLAGS -Zomf"
-			],
         [nacl], [ LDSHARED='$(CC) -shared' ],
-	[ 	: ${LDSHARED='$(LD)'}])
+	[	: ${LDSHARED='$(LD)'}])
   AC_MSG_RESULT($rb_cv_dlopen)
+
+  if test "$rb_cv_dlopen" = yes; then
+    AS_CASE(["$target_os"],
+      [darwin*], [
+	for flag in \
+	  "-undefined dynamic_lookup" \
+	  "-multiply_defined suppress" \
+	  ; do
+	  test "x${linker_flag}" = x || flag="${linker_flag}`echo ${flag} | tr ' ' ,`"
+	  RUBY_TRY_LDFLAGS([$flag], [], [flag=])
+	  if test "x$flag" != x; then
+	    RUBY_APPEND_OPTIONS(DLDFLAGS, [$flag])
+	  fi
+	done
+      ])
+  fi
+
+  AS_IF([test "$enable_rpath:${RPATHFLAG}" = yes:], [
+      AS_IF([test "x$rpathflag" != x], [
+	  RPATHFLAG=" ${rpathflag}%1\$-s"
+      ])
+  ])
 fi
 if test "${LDSHAREDXX}" = ""; then
     AS_CASE(["${LDSHARED}"],
@@ -2418,45 +3345,106 @@ AC_SUBST(LINK_SO)
 AC_SUBST(LIBPATHFLAG)
 AC_SUBST(RPATHFLAG)
 AC_SUBST(LIBPATHENV, "${LIBPATHENV-LD_LIBRARY_PATH}")
+AC_SUBST(PRELOADENV, "${PRELOADENV-LD_PRELOAD}")
 AC_SUBST(TRY_LINK)
 
-AC_ARG_WITH(opt-dir,
-	AS_HELP_STRING([--with-opt-dir=DIR-LIST],
-		       [add optional headers and libraries directories separated by $PATH_SEPARATOR]),
-	[
-		val=`echo "$PATH_SEPARATOR$withval" | sed "s|$PATH_SEPARATOR\([[^$PATH_SEPARATOR]*]\)| -I\1/include|g;s/^ //"`
-		CPPFLAGS="$CPPFLAGS $val"
-		val=`IFS="$PATH_SEPARATOR"
-		    for dir in $withval; do
-			echo x ${LIBPATHFLAG} ${RPATHFLAG} |
-			sed "s/^x *//;s${IFS}"'%1\\$-s'"${IFS}${dir}/lib${IFS}g;s${IFS}%s${IFS}${dir}/lib${IFS}g"
-		    done | tr '\012' ' '`
-		LDFLAGS_OPTDIR="$val"
-		LDFLAGS="$LDFLAGS${LDFLAGS:+ }$val"
-		DLDFLAGS="$DLDFLAGS${DLDFLAGS:+ }$val"
-	])
+if test "x$OPT_DIR" != x; then
+    pat=`echo "${LDFLAGS_OPTDIR}" | sed ['s/[][\\.*|]/\\\\&/']`
+    LDFLAGS=`echo "${LDFLAGS}" | sed "s| ${pat}||"`
+    val=`IFS="$PATH_SEPARATOR"
+        for dir in $OPT_DIR; do
+            echo x ${LIBPATHFLAG} ${RPATHFLAG} |
+            sed "s/^x *//;s${IFS}"'%1\\$-s'"${IFS}${dir}/lib${IFS}g;s${IFS}%s${IFS}${dir}/lib${IFS}g"
+        done | tr '\012' ' ' | sed 's/ *$//'`
+    if test x"$val" != x; then
+	test x"${LDFLAGS}" = x || LDFLAGS="$LDFLAGS "
+	LDFLAGS="$LDFLAGS$val"
+	test x"${DLDFLAGS}" = x || DLDFLAGS="$DLDFLAGS "
+	DLDFLAGS="$DLDFLAGS$val"
+    fi
+    LDFLAGS_OPTDIR="$val"
+fi
 
+AS_CASE(["$target_os"],
+[freebsd*], [
+    AC_CHECK_LIB([procstat], [procstat_open_sysctl])
+    if test "x$ac_cv_lib_procstat_procstat_open_sysctl" = xyes; then
+	AC_CHECK_FUNCS(procstat_getvmmap)
+    fi
+    ])
 AS_CASE(["$target_cpu-$target_os"],
+[*-darwin*], [
+    AC_CHECK_HEADERS([execinfo.h])
+    if test "x$ac_cv_header_execinfo_h" = xyes; then
+	AC_CHECK_LIB([execinfo], [backtrace])
+	AC_CHECK_HEADERS([libunwind.h])
+    fi],
 [*-freebsd*|x86_64-netbsd*], [
     AC_CHECK_HEADERS([execinfo.h])
     if test "x$ac_cv_header_execinfo_h" = xyes; then
 	AC_CHECK_LIB([execinfo], [backtrace])
-	execinfo_frame_pointer=no
-	RUBY_TRY_CFLAGS(-fno-omit-frame-pointer, [execinfo_frame_pointer=yes])
-	if test "x$execinfo_frame_pointer" = xyes; then
-	    # optflags must be manipulated very carefully.  For the
-	    # later cflagspat/cxxflagspat substitution to work, CFLAGS
-	    # and CXXFLAGS must start exactly with the value of
-	    # optflags.
-	    CFLAGS="${CFLAGS# }"; CFLAGS="${CFLAGS#"$optflags "}"
-	    CXXFLAGS="${CXXFLAGS# }"; CXXFLAGS="${CXXFLAGS#"$optflags "}"
-	    RUBY_APPEND_OPTION(optflags, -fno-omit-frame-pointer)
-	    CFLAGS=" $optflags $CFLAGS"
-	    CXXFLAGS=" $optflags $CXXFLAGS"
-	fi
+	AC_CHECK_LIB([unwind], [unw_backtrace])
     fi])
 AC_CHECK_FUNCS(backtrace)
 
+if test "x$ac_cv_func_backtrace" = xyes; then
+  AC_CACHE_CHECK(for broken backtrace, rb_cv_broken_backtrace,
+    [AC_TRY_RUN([
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <signal.h>
+#include <execinfo.h>
+
+#define TRACE_SIZE 256
+
+void sigsegv(int signum, siginfo_t *info, void *ctx){
+    void *trace[TRACE_SIZE];
+    int n = backtrace(trace, TRACE_SIZE);
+    if (n > 0) {
+	/*fprintf(stdout, "backtrace:%d\n",n);*/
+    } else {
+	_exit(EXIT_FAILURE);
+    }
+    _exit(EXIT_SUCCESS);
+}
+int
+main(void)
+{
+    volatile int *a = NULL;
+    stack_t ss;
+    ss.ss_sp = malloc(SIGSTKSZ);
+    if (ss.ss_sp == NULL) {
+	fprintf(stderr, "cannot allocate memory for sigaltstack\n");
+	return EXIT_FAILURE;
+    }
+    ss.ss_size = SIGSTKSZ;
+    ss.ss_flags = 0;
+    if (sigaltstack(&ss, NULL) == -1) {
+	fprintf(stderr, "sigaltstack failed\n");
+	return EXIT_FAILURE;
+    }
+    struct sigaction sa;
+    memset(&sa, 0, sizeof(struct sigaction));
+    sigemptyset(&sa.sa_mask);
+    sa.sa_sigaction = sigsegv;
+    sa.sa_flags |= SA_SIGINFO;
+    sa.sa_flags |= SA_ONSTACK;
+    sigaction(SIGSEGV, &sa, NULL);
+    a[0] = 1;
+    return EXIT_SUCCESS;
+}
+],
+	rb_cv_broken_backtrace=no,
+	rb_cv_broken_backtrace=yes,
+	rb_cv_broken_backtrace=no)])
+  if test "$rb_cv_broken_backtrace" = yes; then
+    AC_DEFINE(BROKEN_BACKTRACE, 1)
+  fi
+fi
+
 AC_ARG_WITH(valgrind,
         AS_HELP_STRING([--without-valgrind],[disable valgrind memcheck support]),
         [], with_valgrind=yes)
@@ -2497,9 +3485,6 @@ else
     [darwin*], [
 	RUBY_APPEND_OPTION(XLDFLAGS, [-Wl,-u,_objc_msgSend])
 	DLEXT=bundle],
-    [os2-emx*], [
-	LOAD_RELATIVE=1
-	DLEXT=dll],
     [cygwin*|mingw*|*djgpp*], [
 	LOAD_RELATIVE=1
 	DLEXT=so],
@@ -2507,7 +3492,6 @@ else
 	DLEXT=so])
 fi
 if test "$rb_cv_dlopen:$load_relative" = yes:yes; then
-    AC_CHECK_FUNCS(dladdr)
     if test "$ac_cv_func_dladdr" = yes; then
 	LOAD_RELATIVE=1
     fi
@@ -2548,38 +3532,64 @@ EXTSTATIC=
 AC_SUBST(EXTSTATIC)dnl
 AC_ARG_WITH(static-linked-ext,
 	    AS_HELP_STRING([--with-static-linked-ext], [link external modules statically]),
-            [AS_CASE([$withval],[yes],[STATIC=;EXTSTATIC=static])])
-if test x"$EXTSTATIC" = xstatic; then
+            [AS_CASE([$withval],[yes],[STATIC=;EXTSTATIC=static],[no],[],[EXTSTATIC="$withval"])])
+AS_CASE([",$EXTSTATIC,"], [,static,|*,enc,*], [
   ENCOBJS='enc/encinit.$(OBJEXT) enc/libenc.$(LIBEXT) enc/libtrans.$(LIBEXT)'
   EXTOBJS='ext/extinit.$(OBJEXT)'
   AC_DEFINE_UNQUOTED(EXTSTATIC, 1)
-fi
+  AC_SUBST(ENCSTATIC, static)
+], [
+  ENCOBJS='dmyenc.$(OBJEXT)'
+  EXTOBJS='dmyext.$(OBJEXT)'
+])
 AC_SUBST(ENCOBJS)
 AC_SUBST(EXTOBJS)
 
-AS_CASE(["$target_os"],
-  dnl OS/2 environment w/ Autoconf 2.1x for EMX
-  [os2-emx], [
-    setup=Setup.emx
-    ],
-  [*djgpp*], [
-    setup=Setup.dj
-    ],
-  [nacl], [
-    setup=Setup.nacl
-    ],
-  [
-    setup=Setup
-    ])
-
+AC_ARG_WITH(setup,
+	    AS_HELP_STRING([--with-setup=SETUP], [use extension libraries setup]),
+	    [setup=$withval])
+if test -n "$setup"; then
+    if ! test -f "ext/$setup" -o -f "$srcdir/ext/$setup"; then
+	AC_MSG_ERROR(Setup file $setup not found under ext or $srcdir/ext)
+    fi
+elif test -f "$srcdir/ext/Setup.$target_os"; then
+    setup="Setup.$target_os"
+else
+    setup=
+    for file in "$srcdir"/ext/Setup.*; do
+	AS_CASE(["$file"], [*~|*.bak|*.orig|*.rej|*.tmp], [continue])
+	setup=`basename "$file"`
+	AS_CASE(["$target_os"], [`expr "$setup" : 'Setup.\(.*\)'`*], [break])
+	platform=`sed '/^option  *platform  */!d;s///;s/|/*|/g;q' "$file"`
+	if test "x$platform" != x; then
+	    eval "AS_CASE([\"\$target_os\"], [$platform*], [break])"
+	fi
+	setup=
+    done
+    : ${setup:=Setup}
+fi
 AC_SUBST(setup)
 
-test x"$prefix" = xNONE && prefix=$ac_default_prefix
-test x"${exec_prefix}" = xNONE && exec_prefix="$prefix"
-pat=`echo "${exec_prefix}" | tr -c '\012' .`'\(.*\)'
-for var in bindir libdir; do
+rubylibprefix='${libdir}/${RUBY_BASE_NAME}'
+AC_ARG_WITH(rubylibprefix,
+	    AS_HELP_STRING([--with-rubylibprefix=DIR], [prefix for ruby libraries [[LIBDIR/RUBY_BASE_NAME]]]),
+	    [if test "x$withval" = xno; then
+		AC_MSG_ERROR([No ruby, No libprefix])
+	    fi
+	    rubylibprefix="$withval"])
+AC_SUBST(rubylibprefix)
+
+if test x"${exec_prefix}" != xNONE; then
+    RUBY_EXEC_PREFIX="$exec_prefix"
+elif test x"$prefix" != xNONE; then
+    RUBY_EXEC_PREFIX="$prefix"
+else
+    RUBY_EXEC_PREFIX=$ac_default_prefix
+fi
+pat=`echo "${RUBY_EXEC_PREFIX}" | tr -c '\012' .`'\(.*\)'
+for var in bindir libdir rubylibprefix; do
     eval val='"$'$var'"'
-    AS_CASE(["$val"], ["${exec_prefix}"*], [val='${exec_prefix}'"`expr \"$val\" : \"$pat\"`"])
+    AS_CASE(["$val"], ["${RUBY_EXEC_PREFIX}"*], [val='${exec_prefix}'"`expr \"$val\" : \"$pat\"`"])
     eval $var='"$val"'
 done
 
@@ -2593,8 +3603,10 @@ if test x"$cross_compiling" = xyes; then
   AC_SUBST(XRUBY_RUBYLIBDIR)
   AC_SUBST(XRUBY_RUBYHDRDIR)
   PREP='$(arch)-fake.rb'
-  RUNRUBY='$(MINIRUBY) -I`cd $(srcdir)/lib; pwd`'
+  RUNRUBY_COMMAND='$(MINIRUBY) -I`cd $(srcdir)/lib; pwd`'
+  RUNRUBY='$(RUNRUBY_COMMAND)'
   XRUBY='$(MINIRUBY)'
+  BOOTSTRAPRUBY='$(BASERUBY)'
   TEST_RUNNABLE=no
   CROSS_COMPILING=yes
 
@@ -2615,8 +3627,10 @@ else
   MINIRUBY='./miniruby$(EXEEXT) -I$(srcdir)/lib -I.'
   MINIRUBY="$MINIRUBY"' -I$(EXTOUT)/common'
   PREP='miniruby$(EXEEXT)'
-  RUNRUBY='$(MINIRUBY) $(srcdir)/tool/runruby.rb --extout=$(EXTOUT)'
+  RUNRUBY_COMMAND='$(MINIRUBY) $(srcdir)/tool/runruby.rb --extout=$(EXTOUT) $(RUNRUBYOPT)'
+  RUNRUBY='$(RUNRUBY_COMMAND) --'
   XRUBY='$(RUNRUBY)'
+  BOOTSTRAPRUBY='$(MINIRUBY)'
   TEST_RUNNABLE=yes
   CROSS_COMPILING=no
 fi
@@ -2625,8 +3639,10 @@ AC_SUBST(CROSS_COMPILING)
 AC_SUBST(MINIRUBY)
 AC_SUBST(BTESTRUBY)
 AC_SUBST(PREP)
+AC_SUBST(RUNRUBY_COMMAND)
 AC_SUBST(RUNRUBY)
 AC_SUBST(XRUBY)
+AC_SUBST(BOOTSTRAPRUBY)
 AC_SUBST(EXTOUT, [${EXTOUT=.ext}])
 
 FIRSTMAKEFILE=""
@@ -2637,13 +3653,25 @@ LIBRUBYARG='$(LIBRUBYARG_STATIC)'
 SOLIBS=
 
 AS_CASE(["$target_os"],
-  [cygwin*|mingw*|beos*|haiku*|darwin*|os2-emx*], [
+  [cygwin*|mingw*|haiku*|darwin*], [
     : ${DLDLIBS=""}
     ],
   [
     DLDLIBS="$DLDLIBS -lc"
     ])
 
+AC_ARG_ENABLE(multiarch,
+	      AS_HELP_STRING([--enable-multiarch], [enable multiarch compatible directories]),
+	      [multiarch=], [unset multiarch])
+if test ${multiarch+set}; then
+   AC_DEFINE(ENABLE_MULTIARCH)
+fi
+
+archlibdir='${libdir}/${arch}'
+sitearchlibdir='${libdir}/${sitearch}'
+archincludedir='${includedir}/${arch}'
+sitearchincludedir='${includedir}/${sitearch}'
+
 AC_ARG_WITH(soname,
 	AS_HELP_STRING([--with-soname=SONAME], [base name of shared library]),
 	[RUBY_SO_NAME=$withval], [RUBY_SO_NAME='$(RUBY_BASE_NAME)'])
@@ -2657,7 +3685,7 @@ ENABLE_SHARED=no
 AC_ARG_ENABLE(shared,
        AS_HELP_STRING([--enable-shared], [build a shared library for Ruby]),
        [enable_shared=$enableval])
-libprefix='$(libdir)'
+libprefix=${multiarch+'$(archlibdir)'}${multiarch-'$(libdir)'}
 LIBRUBY_RELATIVE=${load_relative-no}
 AS_CASE("$enable_shared", [yes], [
   LIBRUBY='$(LIBRUBY_SO)'
@@ -2676,6 +3704,7 @@ AS_CASE("$enable_shared", [yes], [
     AS_CASE(["$libdir"], ['${exec_prefix}/'*], [libdir_basename=`basename "$libdir"`])
   fi
   AC_DEFINE_UNQUOTED(LIBDIR_BASENAME, ["${libdir_basename}"])
+  libdir_basename="${libdir_basename}"${multiarch+'/${arch}'}
 
   AS_CASE(["$target_os"],
     [freebsd*|dragonfly*], [],
@@ -2692,11 +3721,12 @@ AS_CASE("$enable_shared", [yes], [
     [sunos4*], [
 	LIBRUBY_ALIASES='lib$(RUBY_SO_NAME).so.$(MAJOR).$(MINOR) lib$(RUBY_SO_NAME).so'
 	],
-    [linux* | gnu* | k*bsd*-gnu | atheos* | kopensolaris*-gnu], [
+    [linux* | gnu* | k*bsd*-gnu | atheos* | kopensolaris*-gnu | haiku*], [
 	LIBRUBY_DLDFLAGS='-Wl,-soname,lib$(RUBY_SO_NAME).so.$(MAJOR).$(MINOR)'" $LDFLAGS_OPTDIR"
 	LIBRUBY_ALIASES='lib$(RUBY_SO_NAME).so.$(MAJOR).$(MINOR) lib$(RUBY_SO_NAME).so'
 	if test "$load_relative" = yes; then
-	    LIBRUBY_RPATHFLAGS="'-Wl,-rpath,\$\${ORIGIN}/../${libdir_basename}'"
+	    libprefix="'\$\${ORIGIN}/../${libdir_basename}'"
+	    LIBRUBY_RPATHFLAGS="-Wl,-rpath,${libprefix}"
 	    LIBRUBY_RELATIVE=yes
 	fi
 	],
@@ -2718,7 +3748,7 @@ AS_CASE("$enable_shared", [yes], [
 	   LIBRUBY_ALIASES=""
 	fi
 	],
-    [openbsd*], [
+    [openbsd*|mirbsd*], [
 	SOLIBS='$(LIBS)'
 	LIBRUBY_SO='lib$(RUBY_SO_NAME).so.$(MAJOR).'`expr ${MINOR} \* 10 + ${TEENY}`
 	],
@@ -2743,12 +3773,6 @@ AS_CASE("$enable_shared", [yes], [
 	LIBRUBYARG_SHARED='-L${libdir} -l${RUBY_SO_NAME}'
 	SOLIBS='-lm -lc'
 	],
-    [beos*], [
-	AS_CASE(["$target_cpu"],
-	[powerpc*], [
-	    LIBRUBY_DLDFLAGS="-f ruby.exp -lnet -lbe -lroot glue-noinit.a init_term_dyn.o start_dyn.o $LDFLAGS_OPTDIR"
-	    ])
-	],
     [darwin*], [
 	RUBY_SO_NAME="$RUBY_SO_NAME"'.$(MAJOR).$(MINOR).$(TEENY)'
 	LIBRUBY_LDSHARED='$(CC) -dynamiclib'
@@ -2757,15 +3781,17 @@ AS_CASE("$enable_shared", [yes], [
 	    LIBRUBY_RELATIVE=yes
 	fi
 	LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-install_name '${libprefix}'/$(LIBRUBY_SO)'
-	LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-current_version $(MAJOR).$(MINOR).$(TEENY)'
-	LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-compatibility_version $(ruby_version)'
+	LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-compatibility_version $(MAJOR).$(MINOR)'
+	LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-current_version $(RUBY_PROGRAM_VERSION)'
 	if test "$visibility_option" = ld; then
 	    LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-Wl,-unexported_symbol,_Init_*'
+	    LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-Wl,-unexported_symbol,_ruby_static_id_*'
 	    LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-Wl,-unexported_symbol,*_threadptr_*'
 	fi
 	LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "' $(XLDFLAGS)'
 	LIBRUBY_SO='lib$(RUBY_SO_NAME).dylib'
 	LIBRUBY_ALIASES='lib$(RUBY_BASE_NAME).$(MAJOR).$(MINOR).dylib lib$(RUBY_INSTALL_NAME).dylib'
+	SOLIBS='$(LIBS)'
 	],
     [interix*], [
 	LIBRUBYARG_SHARED='-L. -L${libdir} -l$(RUBY_SO_NAME)'
@@ -2777,12 +3803,10 @@ AS_CASE("$enable_shared", [yes], [
   LIBRUBYARG_SHARED=
 
   # enable PIE if possible
-  pie=
+  AC_ARG_ENABLE(pie,
+          AS_HELP_STRING([--disable-pie], [disable PIE feature]),
+          [pie=$enableval], [pie=])
   AS_CASE(["$target_os"],
-  [haiku], [
-    # gcc supports PIE, but doesn't work correctly in Haiku
-    pie=no
-  ],
   [nacl], [
     # -pie implies -shared for NaCl.
     pie=no
@@ -2810,7 +3834,13 @@ AS_CASE("$enable_shared", [yes], [
 ])
 if test "$enable_rpath" = yes; then
     test -z "$LIBRUBY_RPATHFLAGS" || LIBRUBY_RPATHFLAGS="$LIBRUBY_RPATHFLAGS "
-    LIBRUBY_RPATHFLAGS="$LIBRUBY_RPATHFLAGS${linker_flag}-R ${linker_flag}${libprefix} -L\$(libdir)"
+    rpathflag="${RPATHFLAG}"
+    AS_CASE(["${cross_compiling}${load_relative}"], [*yes*], [], [rpathflag="$RPATHFLAG$LIBPATHFLAG"])
+    rpathflag=`IFS="$PATH_SEPARATOR"
+        echo x "$rpathflag" |
+        sed "s/^x *//;s${IFS}"'%1\\$-s'"${IFS}${libprefix}${IFS}g;s${IFS}%s${IFS}${libprefix}${IFS}g"
+    `
+    LIBRUBY_RPATHFLAGS="$LIBRUBY_RPATHFLAGS${rpathflag}"
     LIBRUBYARG_SHARED="$LIBRUBY_RPATHFLAGS $LIBRUBYARG_SHARED"
     LIBRUBYARG_STATIC="$LIBRUBY_RPATHFLAGS $LIBRUBYARG_STATIC"
 fi
@@ -2826,6 +3856,15 @@ if test "$EXEEXT" = .exe; then
     AC_SUBST(EXECUTABLE_EXTS)
 fi
 
+AS_CASE("$cross_compiling:${LIBPATHENV}", [yes:* | no:], [], [
+    AC_MSG_CHECKING(whether wrapper for $LIBPATHENV is needed)
+    AS_IF([env ${LIBPATHENV}=/lib /bin/sh -c ': ${'${LIBPATHENV}'?}' 2>/dev/null],
+	[AC_MSG_RESULT(no)],
+	[PREP="$PREP"' ruby-runner$(EXEEXT)'
+	AC_MSG_RESULT(yes)]
+    )
+])
+
 AC_ARG_ENABLE(dtrace,
         AS_HELP_STRING([--enable-dtrace],
         [enable DTrace for tracing inside ruby. enabled by default on systems having dtrace]),
@@ -2841,6 +3880,7 @@ if test "${enable_dtrace}" = "auto"; then
 fi
 
 LIBRUBY_A_OBJS='$(OBJS)'
+DTRACE_REBUILD=
 if test "${enable_dtrace}" = "yes"; then
     if test -z "$DTRACE"; then
         AC_MSG_ERROR([dtrace(1) is missing])
@@ -2853,9 +3893,11 @@ if test "${enable_dtrace}" = "yes"; then
             AC_MSG_ERROR([--enable-dtrace, however, USDT is not available])
         fi
         RUBY_DTRACE_POSTPROCESS()
-        if test "$rb_cv_prog_dtrace_g" = 'yes'; then
+        if test "$rb_cv_prog_dtrace_g" != 'no'; then
             DTRACE_OBJ='probes.$(OBJEXT)'
-            DTRACE_GLOMMED_OBJ='ruby-glommed.$(OBJEXT)'
+        fi
+        if test "$rb_cv_prog_dtrace_g" = 'rebuild'; then
+            DTRACE_REBUILD=yes
             LIBRUBY_A_OBJS='$(DTRACE_GLOMMED_OBJ)'
         fi
         AS_CASE("${target_os}", [freebsd*], [
@@ -2869,9 +3911,10 @@ else
 fi
 AC_SUBST(DTRACE_EXT)
 AC_SUBST(DTRACE_OBJ)
-AC_SUBST(DTRACE_GLOMMED_OBJ)
+AC_SUBST(DTRACE_REBUILD)
 AC_SUBST(LIBRUBY_A_OBJS)
 
+RUBY_SETJMP_TYPE
 }
 { # build section
 
@@ -2879,14 +3922,14 @@ dnl build rdoc index if requested
 RDOCTARGET=""
 CAPITARGET=""
 AC_ARG_ENABLE(install-doc,
-       AS_HELP_STRING([--disable-install-doc], [do not install neither rdoc indexes nor C API documents during install]),
+       AS_HELP_STRING([--disable-install-doc], [do not install either rdoc indexes or C API documents during install]),
        [install_doc=$enableval], [install_doc=yes])
 AC_ARG_ENABLE(install-rdoc,
       AS_HELP_STRING([--disable-install-rdoc], [do not install rdoc indexes during install]),
       [install_rdoc=$enableval], [install_rdoc=yes])
 AC_ARG_ENABLE(install-capi,
       AS_HELP_STRING([--disable-install-capi], [do not install C API documents during install]),
-      [install_capi=$enableval], [install_capi=yes])
+      [install_capi=$enableval], [install_capi=no])
 
 if test "$install_doc" != no; then
     if test "$install_rdoc" != no; then
@@ -2938,13 +3981,8 @@ AS_CASE(["$target_os"],
 	],
     [darwin*], [
 	RUBY_APPEND_OPTION(CFLAGS, -pipe)
-	],
-    [os2-emx], [
-	AC_LIBOBJ([os2])
-	CFLAGS="$CFLAGS -DOS2"
-	LIBRUBY_A=`echo $LIBRUBY_A | sed 's/^lib//'`
-	LIBRUBY_SO=`echo $LIBRUBY_SO | sed 's/^lib//'`
-	LIBRUBY_ALIASES=`for i in $LIBRUBY_ALIASES; do echo "$i"; done | sed 's/^lib//'`
+	RUBY_APPEND_OPTION(XLDFLAGS, [-framework CoreFoundation])
+	RUBY_APPEND_OPTION(LIBRUBYARG_STATIC, [-framework CoreFoundation])
 	],
     [osf*], [
 	if test "$GCC" != "yes" ; then
@@ -2961,10 +3999,6 @@ AS_CASE(["$target_os"],
 	  CFLAGS="$CFLAGS -std"
 	fi
 	],
-    [beos*], [
-	AS_CASE(["$target_cpu"],[powerpc*], [CFLAGS="$CFLAGS -relax_pointers"])
-	CPPFLAGS="$CPPFLAGS -I/boot/home/config/include"
-	],
     [cygwin*|mingw*], [
 	RUBY_SO_NAME="${RUBY_SO_NAME}"'$(MAJOR)$(MINOR)$(TEENY)'
 	LIBRUBY_DLDFLAGS="${DLDFLAGS}"' -Wl,--out-implib=$(LIBRUBY)'
@@ -3013,6 +4047,7 @@ AS_CASE(["$target_os"],
     [nacl], [
 	FIRSTMAKEFILE=GNUmakefile:nacl/GNUmakefile.in
 	])
+
 MINIOBJS="$MINIDLNOBJ"
 
 AS_CASE(["$THREAD_MODEL"],
@@ -3034,10 +4069,7 @@ AS_CASE(["$FIRSTMAKEFILE"], [*GNUmakefile:*], [gnumake=yes], [
     rm -fr conftest.dir
     AS_CASE(["$gnumake"],
     [*yes*], [
-	echo '@%:@ -*- makefile -*-' > GNUmakefile
-	echo 'override MFLAGS := $(filter-out -j%,$(MFLAGS))' >> GNUmakefile
-	echo "include Makefile" >> GNUmakefile
-	echo "-include uncommon.mk" >> GNUmakefile
+	FIRSTMAKEFILE=GNUmakefile:template/GNUmakefile.in
 	gnumake=yes],
     [
 	gnumake=no])
@@ -3094,44 +4126,12 @@ if test "${universal_binary-no}" = yes ; then
     mv -f confdefs1.h confdefs.h
     AC_MSG_ERROR([failed])
     ])])
+    AC_CACHE_CHECK(whether __ARCHITECTURE__ is available, rb_cv_architecture_available,
+	AC_TRY_COMPILE([@%:@include <stdio.h>
+		const char arch[[]] = __ARCHITECTURE__;], [puts(arch);],
+		[rb_cv_architecture_available=yes], [rb_cv_architecture_available=no]))
 fi
 
-AC_CHECK_FUNC(memmem, [
-  AC_CACHE_CHECK(for broken memmem, rb_cv_broken_memmem, [
-    AC_TRY_RUN([
-#include <string.h>
-
-int
-main()
-{
-  char *str = "hogefugafoobar";
-  char *rs = "foo";
-  char *empty = "";
-  char *p;
-
-  p = memmem(str, strlen(str), rs, strlen(rs));
-  if (p == str+8) {
-    p = memmem(str, strlen(str), empty, strlen(empty));
-    if (p == str)
-      return 0;
-    else
-      return 1;
-  }
-  else {
-    return 1;
-  }
-}
-    ],
-    rb_cv_broken_memmem=no,
-    rb_cv_broken_memmem=yes,
-    rb_cv_broken_memmem=yes)
-  ])
-  if test "$rb_cv_broken_memmem" = no; then
-    AC_DEFINE(HAVE_MEMMEM, 1)
-  fi
-])
-
-
 CPPFLAGS="$CPPFLAGS "'$(DEFS)'
 test -z "$CPPFLAGS" || CPPFLAGS="$CPPFLAGS "; CPPFLAGS="$CPPFLAGS"'${cppflags}'
 if test -n "${cflags+set}"; then
@@ -3149,7 +4149,7 @@ if test "${ARCH_FLAG}"; then
     LDFLAGS=`echo "$LDFLAGS" | sed "s| *$archflagpat"'||'`
 fi
 warnflags="$rb_cv_warnflags"
-AC_SUBST(cppflags, [])dnl
+AC_SUBST(cppflags)dnl
 AC_SUBST(cflags, ["$orig_cflags "'${optflags} ${debugflags} ${warnflags}'])dnl
 AC_SUBST(cxxflags, ["$orig_cxxflags "'${optflags} ${debugflags} ${warnflags}'])dnl
 AC_SUBST(optflags)dnl
@@ -3186,7 +4186,9 @@ AC_SUBST(MINIOBJS)
 AC_SUBST(THREAD_MODEL)
 AC_SUBST(PLATFORM_DIR)
 
-MAKEFILES="Makefile `echo $FIRSTMAKEFILE | sed 's/:.*//'`"
+firstmf=`echo $FIRSTMAKEFILE | sed 's/:.*//'`
+firsttmpl=`echo $FIRSTMAKEFILE | sed 's/.*://'`
+MAKEFILES="Makefile $firstmf"
 MAKEFILES="`echo $MAKEFILES`"
 AC_SUBST(MAKEFILES)
 
@@ -3205,76 +4207,6 @@ AS_CASE(["$target_os"],
     rubyw_install_name='$(RUBYW_INSTALL_NAME)'
     ])
 
-AC_ARG_ENABLE(multiarch,
-	      AS_HELP_STRING([--enable-multiarch], [enable multiarch compatible directories]),
-	      [multiarch=], [unset multiarch])
-
-archlibdir='${libdir}/${arch}'
-sitearchlibdir='${libdir}/${sitearch}'
-archincludedir='${includedir}/${arch}'
-sitearchincludedir='${includedir}/${sitearch}'
-
-shvar_to_cpp() {
-    var="$1" val="$2"
-    exec_prefix_pat="`echo \"${exec_prefix}\" | sed 's/\\./\\\\./g'`"
-    arch_pat="`echo \"${arch}\" | sed 's/\\./\\\\./g'`"
-    sitearch_pat="`echo \"${sitearch}\" | sed 's/\\./\\\\./g'`"
-    val="`echo '\"'\"${val}\"'\"' |
-	sed \
-	    -e 's/\${\([[A-Z][A-Z_]]*\)}/\"\1\"/g' \
-	    -e 's|\${sitearchlibdir}|'\"${sitearchlibdir}|g\" \
-	    -e 's|\${sitearchincludedir}|'\"${sitearchincludedir}|g\" \
-	    -e 's|\${archlibdir}|'\"${archlibdir}|g\" \
-	    -e 's|\${archincludedir}|'\"${archincludedir}|g\" \
-	    -e 's|\${libdir}|'\"${libdir}|g\" \
-	    -e 's/\${ruby_version}/\"RUBY_LIB_VERSION\"/g' \
-	    -e 's/\${arch}/\"arch\"/g' \
-	    -e 's/\${sitearch}/\"arch\"/g' \
-	    -e 's/\${vendorarchdir}/\"RUBY_VENDOR_ARCH_LIB\"/g' \
-	    -e 's/\${sitearchdir}/\"RUBY_SITE_ARCH_LIB\"/g' \
-	    -e 's/\${vendorlibdir}/\"RUBY_VENDOR_LIB2\"/g' \
-	    -e 's/\${sitelibdir}/\"RUBY_SITE_LIB2\"/g' \
-	    -e 's/\${vendordir}/\"RUBY_VENDOR_LIB\"/g' \
-	    -e 's/\${sitedir}/\"RUBY_SITE_LIB\"/g' \
-	    -e 's/\${rubylibdir}/\"RUBY_LIB\"/g' \
-	    -e 's/\${rubylibprefix}/\"RUBY_LIB_PREFIX\"/g' \
-	    -e 's/\${rubyarchprefix}/\"RUBY_ARCH_PREFIX_FOR(arch)\"/g' \
-	    -e 's/\${rubysitearchprefix}/\"RUBY_SITEARCH_PREFIX_FOR(arch)\"/g' \
-	    -e 's/\${exec_prefix}/\"RUBY_EXEC_PREFIX\"/g' \
-	    -e \"s|${exec_prefix_pat}/|\"'\"RUBY_EXEC_PREFIX\"/|g' \
-	    -e \"s|${arch_pat}|\"'\"arch\"|g' \
-	    -e \"s|${sitearch_pat}|\"'\"sitearch\"|g' \
-	    -e 's|^\\\"NONE/|RUBY_EXEC_PREFIX\\\"/|' \
-	    -e 's|^\\\"NONE\\\"|\\\"'\"${prefix}\"'\\\"|' \
-	    -e 's/^\\\"\\\"\(.\)/\1/;s/\(.\)\\\"\\\"$/\1/'
-	`"
-    eval $var='"$val"'
-}
-
-unexpand_shvar() {
-    var=$1 n="" v="" expr=""
-    shift
-    test "$#" -eq 0 && return
-    for n do
-        eval v='"$'$n'"'
-	v="`echo \"$v\" | sed -e ['s/${[^${}\"]*}/\"&\"/g'] -e ['s/[][$|.\\?*]/\\\\&/g']`"
-	if test -n "$v"; then
-	    expr=["${expr};s|"'\("[^$"]*\)'"$v|\\1\${$n}\"|g"]
-	    AS_CASE(["$v"], [*'${'*'}'*], [expr=["$expr;s|$v|\"\${$n}\"|g"]])
-	fi
-    done
-    expr=['s/${[^${}"]*}/"&"/g;'"${expr};"'s/"\(\${[^${}"]*}\)"/\1/g']
-    eval $var='"`echo \"\\\"${'$var'}\\\"\" | sed \"$expr;s/\\\"//g\"`"'
-}
-
-rubylibprefix='${libdir}/${RUBY_BASE_NAME}'
-AC_ARG_WITH(rubylibprefix,
-	    AS_HELP_STRING([--with-rubylibprefix=DIR], [prefix for ruby libraries [[LIBDIR/RUBY_BASE_NAME]]]),
-	    [if test "x$withval" = xno; then
-		AC_MSG_ERROR([No ruby, No libprefix])
-	    fi
-	    rubylibprefix="$withval"])
-AC_SUBST(rubylibprefix)
 rubylibdir='${rubylibprefix}/${ruby_version}'
 rubyarchdir=${multiarch+'${rubyarchprefix}/${ruby_version}'}${multiarch-'${rubylibdir}/${arch}'}
 
@@ -3321,9 +4253,13 @@ if test ${RUBY_LIB_VERSION_STYLE+set}; then
     test -f verconf.h || > verconf.h
     ruby_version="`$CPP -I. -I"${srcdir}" -I"${srcdir}/include" conftest.c | sed '/^ruby_version=/!d;s/ //g'`"
     eval $ruby_version
+elif test -z "${ruby_version}"; then
+    AC_MSG_ERROR([No ruby version, No place for bundled libraries])
 else
-    RUBY_LIB_VERSION="\"${ruby_version}\""
+    RUBY_LIB_VERSION="${ruby_version}"
 fi
+AC_SUBST(RUBY_LIB_VERSION_STYLE)
+AC_SUBST(RUBY_LIB_VERSION)
 
 AC_ARG_WITH(sitedir,
 	    AS_HELP_STRING([--with-sitedir=DIR], [site libraries in DIR [[RUBY_LIB_PREFIX/site_ruby]], "no" to disable site directory]),
@@ -3332,7 +4268,7 @@ AC_ARG_WITH(sitedir,
 sitelibdir='${sitedir}/${ruby_version}'
 
 AC_ARG_WITH(sitearchdir,
-	    AS_HELP_STRING([--with-arch-sitedir=DIR],
+	    AS_HELP_STRING([--with-sitearchdir=DIR],
 			   [architecture dependent site libraries in DIR [[SITEDIR/SITEARCH]], "no" to disable site directory]),
             [sitearchdir=$withval],
             [sitearchdir=${multiarch+'${rubysitearchprefix}/site_ruby/${ruby_version}'}${multiarch-'${sitelibdir}/${sitearch}'}])
@@ -3344,59 +4280,19 @@ AC_ARG_WITH(vendordir,
 vendorlibdir='${vendordir}/${ruby_version}'
 
 AC_ARG_WITH(vendorarchdir,
-	    AS_HELP_STRING([--with-arch-vendordir=DIR],
+	    AS_HELP_STRING([--with-vendorarchdir=DIR],
 			   [architecture dependent vendor libraries in DIR [[VENDORDIR/SITEARCH]], "no" to disable vendor directory]),
             [vendorarchdir=$withval],
             [vendorarchdir=${multiarch+'${rubysitearchprefix}/vendor_ruby/${ruby_version}'}${multiarch-'${vendorlibdir}/${sitearch}'}])
 
-unexpand_shvar rubylibprefix       exec_prefix libdir RUBY_BASE_NAME
-unexpand_shvar rubyarchprefix      exec_prefix libdir arch RUBY_BASE_NAME archlibdir rubylibprefix
-unexpand_shvar rubysitearchprefix  exec_prefix libdir sitearch arch RUBY_BASE_NAME archlibdir sitearchlibdir rubylibprefix
 if test "${LOAD_RELATIVE+set}"; then
     AC_DEFINE_UNQUOTED(LOAD_RELATIVE, $LOAD_RELATIVE)
-    RUBY_EXEC_PREFIX='""'
-else
-    shvar_to_cpp RUBY_EXEC_PREFIX "${exec_prefix}"
+    RUBY_EXEC_PREFIX=''
 fi
-shvar_to_cpp RUBY_LIB_PREFIX "${rubylibprefix}"
-shvar_to_cpp RUBY_ARCH_PREFIX_FOR "${rubyarchprefix}"
-shvar_to_cpp RUBY_SITEARCH_PREFIX_FOR "${rubysitearchprefix}"
-shvar_to_cpp RIDIR "${ridir}"
-unexpand_shvar exec_prefix         prefix
 
-if test ${RUBY_LIB_VERSION_STYLE+set}; then
-    AC_DEFINE_UNQUOTED(RUBY_LIB_VERSION_STYLE, $RUBY_LIB_VERSION_STYLE !<verconf>!)
-else
-    AC_DEFINE_UNQUOTED(RUBY_LIB_VERSION, [$RUBY_LIB_VERSION] !<verconf>!)
-fi
-AC_DEFINE_UNQUOTED(RUBY_EXEC_PREFIX, ${RUBY_EXEC_PREFIX})
-AC_DEFINE_UNQUOTED(RUBY_LIB_PREFIX, ${RUBY_LIB_PREFIX} !<verconf>!)
-AC_DEFINE_UNQUOTED(RUBY_ARCH_PREFIX_FOR(arch), ${RUBY_ARCH_PREFIX_FOR} !<verconf>!)
-AC_DEFINE_UNQUOTED(RUBY_SITEARCH_PREFIX_FOR(arch), ${RUBY_SITEARCH_PREFIX_FOR} !<verconf>!)
-
-shvar_to_cpp RUBY_LIB "${rubylibdir}"
-if test "x${RUBY_LIB}" != 'xRUBY_LIB_PREFIX"/"RUBY_LIB_VERSION'; then
-    AC_DEFINE_UNQUOTED(RUBY_LIB, ${RUBY_LIB} !<verconf>!)
-fi
-shvar_to_cpp RUBY_ARCH_LIB_FOR "${rubyarchdir}"
-AC_DEFINE_UNQUOTED(RUBY_ARCH_LIB_FOR(arch), ${RUBY_ARCH_LIB_FOR} !<verconf>!)
-if test "x$sitedir" = xno; then
-    AC_DEFINE(NO_RUBY_SITE_LIB, [] !<verconf>!)
-else
-    shvar_to_cpp RUBY_SITE_LIB "${sitedir}"
-    AC_DEFINE_UNQUOTED(RUBY_SITE_LIB, ${RUBY_SITE_LIB} !<verconf>!)
-    shvar_to_cpp RUBY_SITE_ARCH_LIB_FOR "${sitearchdir}"
-    AC_DEFINE_UNQUOTED(RUBY_SITE_ARCH_LIB_FOR(arch), ${RUBY_SITE_ARCH_LIB_FOR} !<verconf>!)
-fi
-if test "x$vendordir" = xno; then
-    AC_DEFINE(NO_RUBY_VENDOR_LIB, [] !<verconf>!)
-else
-    shvar_to_cpp RUBY_VENDOR_LIB "${vendordir}"
-    AC_DEFINE_UNQUOTED(RUBY_VENDOR_LIB, ${RUBY_VENDOR_LIB} !<verconf>!)
-    shvar_to_cpp RUBY_VENDOR_ARCH_LIB_FOR "${vendorarchdir}"
-    AC_DEFINE_UNQUOTED(RUBY_VENDOR_ARCH_LIB_FOR(arch), ${RUBY_VENDOR_ARCH_LIB_FOR} !<verconf>!)
-fi
+AC_SUBST(RUBY_EXEC_PREFIX)
 
+AC_SUBST(libdirname, ${multiarch+arch}libdir)
 AC_SUBST(archlibdir)dnl
 AC_SUBST(sitearchlibdir)dnl
 AC_SUBST(archincludedir)dnl
@@ -3413,16 +4309,13 @@ AC_SUBST(vendordir)dnl
 AC_SUBST(vendorlibdir)dnl
 AC_SUBST(vendorarchdir)dnl
 
-configure_args=$ac_configure_args
-AC_SUBST(configure_args)dnl
+AC_SUBST(CONFIGURE, "`echo $0 | sed 's|.*/||'`")dnl
+AC_SUBST(configure_args, "`echo "${ac_configure_args}" | sed 's/\\$/$$/g'`")dnl
 
 if test "${universal_binary-no}" = yes ; then
     arch="universal-${target_os}"
-    AC_CACHE_CHECK(whether __ARCHITECTURE__ is available, rb_cv_architecture_available,
-	AC_TRY_COMPILE([const char arch[] = __ARCHITECTURE__;], [puts(arch);],
-	     [rb_cv_architecture_available=yes], [rb_cv_architecture_available=no]))
     if test "${rb_cv_architecture_available}" = yes; then
-	AC_DEFINE_UNQUOTED(RUBY_PLATFORM_CPU, __ARCHITECTURE__ !<verconf>!)
+	AC_DEFINE_UNQUOTED(RUBY_PLATFORM_CPU, __ARCHITECTURE__)
     else
 	for archs in ${universal_archnames}; do
 	    cpu=`echo $archs | sed 's/.*=//'`
@@ -3434,24 +4327,24 @@ if test "${universal_binary-no}" = yes ; then
     test "$ac_cv_type_long_long" = yes && ints="'long long' $ints"
     AC_SUBST(UNIVERSAL_ARCHNAMES, "${universal_archnames}")
     AC_SUBST(UNIVERSAL_INTS, "${ints}")
-    AC_DEFINE_UNQUOTED(RUBY_PLATFORM_OS, "${target_os}" !<verconf>!)
-    AC_DEFINE_UNQUOTED(RUBY_ARCH, "universal-"RUBY_PLATFORM_OS !<verconf>!)
-    AC_DEFINE_UNQUOTED(RUBY_PLATFORM, "universal."RUBY_PLATFORM_CPU"-"RUBY_PLATFORM_OS !<verconf>!)
+    AC_DEFINE_UNQUOTED(RUBY_PLATFORM_OS, "${target_os}")
+    AC_DEFINE_UNQUOTED(RUBY_ARCH, "universal-"RUBY_PLATFORM_OS)
+    AC_DEFINE_UNQUOTED(RUBY_PLATFORM, "universal."RUBY_PLATFORM_CPU"-"RUBY_PLATFORM_OS)
 else
     arch="${target_cpu}-${target_os}"
-    AC_DEFINE_UNQUOTED(RUBY_PLATFORM, "${arch}" !<verconf>!)
+    AS_CASE(["$arch"], [le32-nacl], [arch="pnacl"])
+    AC_DEFINE_UNQUOTED(RUBY_PLATFORM, "$arch")
 fi
 
 unset sitearch
 AS_CASE(["$target_os"],[mingw*],[sitearch="$target_cpu-$rb_cv_msvcrt"])
-test ${sitearch+set} && AC_DEFINE_UNQUOTED(RUBY_SITEARCH, "${sitearch}" !<verconf>!)
 : ${sitearch='${arch}'}
 
 AC_ARG_WITH(search-path,
 		AS_HELP_STRING([--with-search-path=DIR], [specify the additional search path]),
 		[search_path=$withval])
 if test "$search_path" != ""; then
-    AC_DEFINE_UNQUOTED(RUBY_SEARCH_PATH,"$search_path" !<verconf>!)
+    AC_SUBST(RUBY_SEARCH_PATH, $search_path)
 fi
 
 AC_ARG_WITH(rubyhdrdir,
@@ -3460,7 +4353,7 @@ AC_ARG_WITH(rubyhdrdir,
 	    [rubyhdrdir='${includedir}/${RUBY_VERSION_NAME}'])
 
 AC_ARG_WITH(rubyarchhdrdir,
-	    AS_HELP_STRING([--with-arch-rubyhdrdir=DIR],
+	    AS_HELP_STRING([--with-rubyarchhdrdir=DIR],
 			   [architecture dependent core headers in DIR [[$(rubyhdrdir)/$(arch)]]]),
 	    [rubyarchhdrdir=$withval],
 	    [rubyarchhdrdir=${multiarch+'${archincludedir}/${RUBY_VERSION_NAME}'}${multiarch-'${rubyhdrdir}/${arch}'}])
@@ -3471,7 +4364,7 @@ AC_ARG_WITH(sitehdrdir,
 	    [sitehdrdir='${rubyhdrdir}/site_ruby'])
 
 AC_ARG_WITH(sitearchhdrdir,
-	    AS_HELP_STRING([--with-arch-sitehdrdir=DIR],
+	    AS_HELP_STRING([--with-sitearchhdrdir=DIR],
 			   [architecture dependent core site headers in DIR [[RUBYHDRDIR/site_ruby]]]),
 	    [sitearchhdrdir=$withval],
 	    [sitearchhdrdir=${multiarch+'${sitearchincludedir}/${RUBY_VERSION_NAME}/site_ruby'}${multiarch-'${sitehdrdir}/${sitearch}'}])
@@ -3482,7 +4375,7 @@ AC_ARG_WITH(vendorhdrdir,
 	    [vendorhdrdir='${rubyhdrdir}/vendor_ruby'])
 
 AC_ARG_WITH(vendorarchhdrdir,
-	    AS_HELP_STRING([--with-arch-vendorhdrdir=DIR],
+	    AS_HELP_STRING([--with-vendorarchhdrdir=DIR],
 			   [architecture dependent core vendor headers in DIR [[RUBYHDRDIR/vendor_ruby]]]),
 	    [vendorarchhdrdir=$withval],
 	    [vendorarchhdrdir=${multiarch+'${sitearchincludedir}/${RUBY_VERSION_NAME}/vendor_ruby'}${multiarch-'${vendorhdrdir}/${sitearch}'}])
@@ -3498,7 +4391,7 @@ AC_ARG_WITH(mantype,
 	AS_HELP_STRING([--with-mantype=TYPE], [specify man page type; TYPE is one of man and doc]),
 		[
 			AS_CASE(["$withval"],
-			[man|doc], [MANTYPE=$withval],
+			[man|man.gz|man.bz2|doc|doc.gz|doc.bz2], [MANTYPE=$withval],
 			[AC_MSG_ERROR(invalid man type: $withval)])
 		])
 if test -z "$MANTYPE"; then
@@ -3529,11 +4422,13 @@ guard=INCLUDE_RUBY_CONFIG_H
 {
   echo "#ifndef $guard"
   echo "#define $guard 1"
-  grep -v "^#define PACKAGE_" confdefs.h | grep -v ' !<verconf>!$'
+  grep -v "^#define PACKAGE_" confdefs.h
   echo "#endif /* $guard */"
 } | tr -d '\015' |
-${srcdir}/tool/ifchange "${config_h}" -
-sed -n 's/ !<verconf>!$//p' confdefs.h | ${srcdir}/tool/ifchange verconf.h -
+(
+  if test "x$CONFIGURE_TTY" = xyes; then color=--color; else color=; fi
+  exec ${srcdir}/tool/ifchange $color "${config_h}" -
+) || AC_MSG_ERROR([failed to create ${config_h}])
 tr -d '\015' < largefile.h > confdefs.h
 rm largefile.h
 
@@ -3541,7 +4436,7 @@ BUILTIN_ENCS=["`sed -n -e '/^BUILTIN_ENCS[ 	]*=/{' \
 	-e s/// -e :l -e '/\\\\$/N' -e 's/\\\\\\n/ /' -e 't l' -e p \
 	-e '}' "${srcdir}/enc/Makefile.in"`"]
 BUILTIN_ENCOBJS=
-for e in $BUILTIN_ENCS; do BUILTIN_ENCOBJS="$BUILTIN_ENCOBJS `basename $e .c`"'.$(OBJEXT)'; done
+for e in $BUILTIN_ENCS; do BUILTIN_ENCOBJS="$BUILTIN_ENCOBJS "`echo $e | sed 's/\.c$/.$(OBJEXT)/'`; done
 AC_SUBST(BUILTIN_ENCOBJS)
 
 BUILTIN_TRANSES=["`sed -n -e '/^BUILTIN_TRANSES[ 	]*=/{' \
@@ -3550,19 +4445,21 @@ BUILTIN_TRANSES=["`sed -n -e '/^BUILTIN_TRANSES[ 	]*=/{' \
 BUILTIN_TRANSSRCS=
 BUILTIN_TRANSOBJS=
 for e in $BUILTIN_TRANSES; do
-  BUILTIN_TRANSSRCS="$BUILTIN_TRANSSRCS `basename $e .trans`"'.c';
-  BUILTIN_TRANSOBJS="$BUILTIN_TRANSOBJS `basename $e .trans`"'.$(OBJEXT)';
+  BUILTIN_TRANSSRCS="$BUILTIN_TRANSSRCS "`echo $e | sed 's/\.trans$/.c/'`
+  BUILTIN_TRANSOBJS="$BUILTIN_TRANSOBJS "`echo $e | sed 's/\.trans$/.$(OBJEXT)/'`
 done
 AC_SUBST(BUILTIN_TRANSSRCS)
 AC_SUBST(BUILTIN_TRANSOBJS)
 
 PACKAGE=$RUBY_BASE_NAME
 AC_SUBST(PACKAGE)
-AC_MSG_RESULT($PACKAGE library version = $ruby_version)
+AS_MESSAGE([$PACKAGE library version = $ruby_version])
 
 AS_CASE([" $CPP "], [*" $CC "*], [CPP=`echo " $CPP " | sed "s| $CC |"' $(CC) |;s/^ *//;s/  *$//'`])
 
-AC_CONFIG_FILES($FIRSTMAKEFILE)
+if test x"$firstmf" != x; then
+    AC_CONFIG_FILES($firstmf:$firsttmpl, [], [firstmf="$firstmf" firsttmpl="$firsttmpl"])
+fi
 AC_CONFIG_FILES(Makefile, [
     tmpmk=confmk$$.tmp
     {
@@ -3582,6 +4479,7 @@ AC_CONFIG_FILES(Makefile, [
 		["git svn"], [VCSUP='$(VCS) rebase $(GITSVNREBASEOPTIONS)'],
 		[git],       [VCSUP='$(VCS) pull $(GITPULLOPTIONS)'],
 		[VCSUP='$(VCS)'])
+	sed -n 's/^@%:@define \(RUBY_RELEASE_DATE\) "\(.*\)"/\1 = \2/p' "$srcdir/version.h"
 	sed '/^MISSING/s/\$U\././g;/^VCS *=/s#@VCS@#'"$VCS"'#;/^VCSUP *=/s#@VCSUP@#'"$VCSUP"'#' Makefile
 	echo; test x"$EXEEXT" = x || echo 'miniruby: miniruby$(EXEEXT)'
 	if test "$gnumake" != yes; then
@@ -3607,12 +4505,17 @@ AC_CONFIG_FILES(Makefile, [
 [EXEEXT='$EXEEXT' gnumake='$gnumake'])
 
 AC_ARG_WITH([ruby-pc],
-	    AC_HELP_STRING([pc file basename]),
+	    AC_HELP_STRING([--with-ruby-pc=FILENAME], [pc file basename]),
 	    [ruby_pc="$withval"],
 	    [ruby_pc="${RUBY_BASE_NAME}-${MAJOR}.${MINOR}.pc"])
 AC_SUBST(ruby_pc)
 AC_SUBST(exec, [exec])
 
+AC_ARG_WITH(destdir,
+	    AS_HELP_STRING([--with-destdir=DESTDIR], [specify default directory to install]),
+	    [DESTDIR="$withval"])
+AC_SUBST(DESTDIR)
+
 AC_CONFIG_FILES($ruby_pc:template/ruby.pc.in,
     [
     if sed ['s/\$(\([A-Za-z_][A-Za-z0-9_]*\))/${\1}/g;s/@[A-Za-z_][A-Za-z0-9_]*@//'] $ruby_pc > ruby.tmp.pc &&
diff --git a/constant.h b/constant.h
index 9354241961..23d17ac24c 100644
--- a/constant.h
+++ b/constant.h
@@ -12,19 +12,32 @@
 #define CONSTANT_H
 
 typedef enum {
+    CONST_DEPRECATED = 0x100,
+
+    CONST_VISIBILITY_MASK = 0xff,
     CONST_PUBLIC    = 0x00,
-    CONST_PRIVATE   = 0x01
+    CONST_PRIVATE,
+    CONST_VISIBILITY_MAX
 } rb_const_flag_t;
 
+#define RB_CONST_PRIVATE_P(ce) \
+    (((ce)->flag & CONST_VISIBILITY_MASK) == CONST_PRIVATE)
+#define RB_CONST_PUBLIC_P(ce) \
+    (((ce)->flag & CONST_VISIBILITY_MASK) == CONST_PUBLIC)
+
+#define RB_CONST_DEPRECATED_P(ce) \
+    ((ce)->flag & CONST_DEPRECATED)
+
 typedef struct rb_const_entry_struct {
     rb_const_flag_t flag;
-    VALUE value;            /* should be mark */
-    VALUE file;
     int line;
+    const VALUE value;            /* should be mark */
+    const VALUE file;             /* should be mark */
 } rb_const_entry_t;
 
-VALUE rb_mod_private_constant(int argc, VALUE *argv, VALUE obj);
-VALUE rb_mod_public_constant(int argc, VALUE *argv, VALUE obj);
+VALUE rb_mod_private_constant(int argc, const VALUE *argv, VALUE obj);
+VALUE rb_mod_public_constant(int argc, const VALUE *argv, VALUE obj);
+VALUE rb_mod_deprecate_constant(int argc, const VALUE *argv, VALUE obj);
 void rb_free_const_table(st_table *tbl);
 VALUE rb_public_const_get(VALUE klass, ID id);
 VALUE rb_public_const_get_at(VALUE klass, ID id);
@@ -32,5 +45,6 @@ VALUE rb_public_const_get_from(VALUE klass, ID id);
 int rb_public_const_defined(VALUE klass, ID id);
 int rb_public_const_defined_at(VALUE klass, ID id);
 int rb_public_const_defined_from(VALUE klass, ID id);
+rb_const_entry_t *rb_const_lookup(VALUE klass, ID id);
 
 #endif /* CONSTANT_H */
diff --git a/cont.c b/cont.c
index 2656cbeb2c..b2e48c6202 100644
--- a/cont.c
+++ b/cont.c
@@ -9,15 +9,11 @@
 
 **********************************************************************/
 
-#include "ruby/ruby.h"
 #include "internal.h"
 #include "vm_core.h"
 #include "gc.h"
 #include "eval_intern.h"
 
-#if ((defined(_WIN32) && _WIN32_WINNT >= 0x0400) || (defined(HAVE_GETCONTEXT) && defined(HAVE_SETCONTEXT))) && !defined(__NetBSD__) && !defined(__sun) && !defined(__ia64) && !defined(FIBER_USE_NATIVE)
-#define FIBER_USE_NATIVE 1
-
 /* FIBER_USE_NATIVE enables Fiber performance improvement using system
  * dependent method such as make/setcontext on POSIX system or
  * CreateFiber() API on Windows.
@@ -29,12 +25,45 @@
  * in Proc. of 51th Programming Symposium, pp.21--28 (2010) (in Japanese).
  */
 
+#if !defined(FIBER_USE_NATIVE)
+# if defined(HAVE_GETCONTEXT) && defined(HAVE_SETCONTEXT)
+#   if 0
+#   elif defined(__NetBSD__)
 /* On our experience, NetBSD doesn't support using setcontext() and pthread
  * simultaneously.  This is because pthread_self(), TLS and other information
  * are represented by stack pointer (higher bits of stack pointer).
  * TODO: check such constraint on configure.
  */
-#elif !defined(FIBER_USE_NATIVE)
+#     define FIBER_USE_NATIVE 0
+#   elif defined(__sun)
+/* On Solaris because resuming any Fiber caused SEGV, for some reason.
+ */
+#     define FIBER_USE_NATIVE 0
+#   elif defined(__ia64)
+/* At least, Linux/ia64's getcontext(3) doesn't save register window.
+ */
+#     define FIBER_USE_NATIVE 0
+#   elif defined(__GNU__)
+/* GNU/Hurd doesn't fully support getcontext, setcontext, makecontext
+ * and swapcontext functions. Disabling their usage till support is
+ * implemented. More info at
+ * http://darnassus.sceen.net/~hurd-web/open_issues/glibc/#getcontext
+ */
+#     define FIBER_USE_NATIVE 0
+#   else
+#     define FIBER_USE_NATIVE 1
+#   endif
+# elif defined(_WIN32)
+#   if _WIN32_WINNT >= 0x0400
+/* only when _WIN32_WINNT >= 0x0400 on Windows because Fiber APIs are
+ * supported only such building (and running) environments.
+ * [ruby-dev:41192]
+ */
+#     define FIBER_USE_NATIVE 1
+#   endif
+# endif
+#endif
+#if !defined(FIBER_USE_NATIVE)
 #define FIBER_USE_NATIVE 0
 #endif
 
@@ -59,24 +88,28 @@ enum context_type {
 
 typedef struct rb_context_struct {
     enum context_type type;
-    VALUE self;
     int argc;
+    VALUE self;
     VALUE value;
     VALUE *vm_stack;
 #ifdef CAPTURE_JUST_VALID_VM_STACK
     size_t vm_stack_slen;  /* length of stack (head of th->stack) */
     size_t vm_stack_clen;  /* length of control frames (tail of th->stack) */
 #endif
-    VALUE *machine_stack;
-    VALUE *machine_stack_src;
+    struct {
+	VALUE *stack;
+	VALUE *stack_src;
+	size_t stack_size;
 #ifdef __ia64
-    VALUE *machine_register_stack;
-    VALUE *machine_register_stack_src;
-    int machine_register_stack_size;
+	VALUE *register_stack;
+	VALUE *register_stack_src;
+	int register_stack_size;
 #endif
-    rb_thread_t saved_thread;
+    } machine;
+    rb_thread_t saved_thread; /* selected properties of GET_THREAD() (see cont_save_thread) */
     rb_jmpbuf_t jmpbuf;
-    size_t machine_stack_size;
+    rb_ensure_entry_t *ensure_array;
+    rb_ensure_list_t *ensure_list;
 } rb_context_t;
 
 enum fiber_status {
@@ -86,36 +119,40 @@ enum fiber_status {
 };
 
 #if FIBER_USE_NATIVE && !defined(_WIN32)
-#define MAX_MAHINE_STACK_CACHE  10
+#define MAX_MACHINE_STACK_CACHE  10
 static int machine_stack_cache_index = 0;
 typedef struct machine_stack_cache_struct {
     void *ptr;
     size_t size;
 } machine_stack_cache_t;
-static machine_stack_cache_t machine_stack_cache[MAX_MAHINE_STACK_CACHE];
+static machine_stack_cache_t machine_stack_cache[MAX_MACHINE_STACK_CACHE];
 static machine_stack_cache_t terminated_machine_stack;
 #endif
 
-typedef struct rb_fiber_struct {
+struct rb_fiber_struct {
     rb_context_t cont;
-    VALUE prev;
+    struct rb_fiber_struct *prev;
     enum fiber_status status;
-    struct rb_fiber_struct *prev_fiber;
-    struct rb_fiber_struct *next_fiber;
     /* If a fiber invokes "transfer",
      * then this fiber can't "resume" any more after that.
      * You shouldn't mix "transfer" and "resume".
      */
-    int transfered;
+    int transferred;
 
 #if FIBER_USE_NATIVE
 #ifdef _WIN32
     void *fib_handle;
 #else
     ucontext_t context;
+    /* Because context.uc_stack.ss_sp and context.uc_stack.ss_size
+     * are not necessarily valid after makecontext() or swapcontext(),
+     * they are saved in these variables for later use.
+     */
+    void *ss_sp;
+    size_t ss_size;
 #endif
 #endif
-} rb_fiber_t;
+};
 
 static const rb_data_type_t cont_data_type, fiber_data_type;
 static VALUE rb_cContinuation;
@@ -130,7 +167,7 @@ static VALUE rb_eFiberError;
     if (!(ptr)) rb_raise(rb_eFiberError, "uninitialized fiber"); \
 } while (0)
 
-NOINLINE(static VALUE cont_capture(volatile int *stat));
+NOINLINE(static VALUE cont_capture(volatile int *volatile stat));
 
 #define THREAD_MUST_BE_RUNNING(th) do { \
 	if (!(th)->tag) rb_raise(rb_eThreadError, "not running thread");	\
@@ -151,32 +188,32 @@ cont_mark(void *ptr)
 	    rb_gc_mark_locations(cont->vm_stack,
 				 cont->vm_stack + cont->vm_stack_slen + cont->vm_stack_clen);
 #else
-	    rb_gc_mark_localtion(cont->vm_stack,
+	    rb_gc_mark_locations(cont->vm_stack,
 				 cont->vm_stack, cont->saved_thread.stack_size);
 #endif
 	}
 
-	if (cont->machine_stack) {
+	if (cont->machine.stack) {
 	    if (cont->type == CONTINUATION_CONTEXT) {
 		/* cont */
-		rb_gc_mark_locations(cont->machine_stack,
-				     cont->machine_stack + cont->machine_stack_size);
+		rb_gc_mark_locations(cont->machine.stack,
+				     cont->machine.stack + cont->machine.stack_size);
             }
             else {
 		/* fiber */
 		rb_thread_t *th;
                 rb_fiber_t *fib = (rb_fiber_t*)cont;
 		GetThreadPtr(cont->saved_thread.self, th);
-		if ((th->fiber != cont->self) && fib->status == RUNNING) {
-		    rb_gc_mark_locations(cont->machine_stack,
-					 cont->machine_stack + cont->machine_stack_size);
+		if ((th->fiber != fib) && fib->status == RUNNING) {
+		    rb_gc_mark_locations(cont->machine.stack,
+					 cont->machine.stack + cont->machine.stack_size);
 		}
 	    }
 	}
 #ifdef __ia64
-	if (cont->machine_register_stack) {
-	    rb_gc_mark_locations(cont->machine_register_stack,
-				 cont->machine_register_stack + cont->machine_register_stack_size);
+	if (cont->machine.register_stack) {
+	    rb_gc_mark_locations(cont->machine.register_stack,
+				 cont->machine.register_stack + cont->machine.register_stack_size);
 	}
 #endif
     }
@@ -189,30 +226,31 @@ cont_free(void *ptr)
     RUBY_FREE_ENTER("cont");
     if (ptr) {
 	rb_context_t *cont = ptr;
-	RUBY_FREE_UNLESS_NULL(cont->saved_thread.stack); fflush(stdout);
+	RUBY_FREE_UNLESS_NULL(cont->saved_thread.stack);
 #if FIBER_USE_NATIVE
 	if (cont->type == CONTINUATION_CONTEXT) {
 	    /* cont */
-	    RUBY_FREE_UNLESS_NULL(cont->machine_stack);
+	    ruby_xfree(cont->ensure_array);
+	    RUBY_FREE_UNLESS_NULL(cont->machine.stack);
 	}
 	else {
 	    /* fiber */
+	    rb_fiber_t *fib = (rb_fiber_t*)cont;
+	    const rb_thread_t *const th = GET_THREAD();
 #ifdef _WIN32
-	    if (GET_THREAD()->fiber != cont->self && cont->type != ROOT_FIBER_CONTEXT) {
+	    if (th && th->fiber != fib && cont->type != ROOT_FIBER_CONTEXT) {
 		/* don't delete root fiber handle */
-		rb_fiber_t *fib = (rb_fiber_t*)cont;
 		if (fib->fib_handle) {
 		    DeleteFiber(fib->fib_handle);
 		}
 	    }
 #else /* not WIN32 */
-	    if (GET_THREAD()->fiber != cont->self) {
-                rb_fiber_t *fib = (rb_fiber_t*)cont;
-                if (fib->context.uc_stack.ss_sp) {
+	    if (th && th->fiber != fib) {
+                if (fib->ss_sp) {
                     if (cont->type == ROOT_FIBER_CONTEXT) {
 			rb_bug("Illegal root fiber parameter");
                     }
-		    munmap((void*)fib->context.uc_stack.ss_sp, fib->context.uc_stack.ss_size);
+		    munmap((void*)fib->ss_sp, fib->ss_size);
 		}
 	    }
             else {
@@ -223,10 +261,11 @@ cont_free(void *ptr)
 #endif
 	}
 #else /* not FIBER_USE_NATIVE */
-	RUBY_FREE_UNLESS_NULL(cont->machine_stack);
+	ruby_xfree(cont->ensure_array);
+	RUBY_FREE_UNLESS_NULL(cont->machine.stack);
 #endif
 #ifdef __ia64
-	RUBY_FREE_UNLESS_NULL(cont->machine_register_stack);
+	RUBY_FREE_UNLESS_NULL(cont->machine.register_stack);
 #endif
 	RUBY_FREE_UNLESS_NULL(cont->vm_stack);
 
@@ -241,63 +280,48 @@ cont_memsize(const void *ptr)
 {
     const rb_context_t *cont = ptr;
     size_t size = 0;
-    if (cont) {
-	size = sizeof(*cont);
-	if (cont->vm_stack) {
+
+    size = sizeof(*cont);
+    if (cont->vm_stack) {
 #ifdef CAPTURE_JUST_VALID_VM_STACK
-	    size_t n = (cont->vm_stack_slen + cont->vm_stack_clen);
+	size_t n = (cont->vm_stack_slen + cont->vm_stack_clen);
 #else
-	    size_t n = cont->saved_thread.stack_size;
+	size_t n = cont->saved_thread.stack_size;
 #endif
-	    size += n * sizeof(*cont->vm_stack);
-	}
+	size += n * sizeof(*cont->vm_stack);
+    }
 
-	if (cont->machine_stack) {
-	    size += cont->machine_stack_size * sizeof(*cont->machine_stack);
-	}
+    if (cont->machine.stack) {
+	size += cont->machine.stack_size * sizeof(*cont->machine.stack);
+    }
 #ifdef __ia64
-	if (cont->machine_register_stack) {
-	    size += cont->machine_register_stack_size * sizeof(*cont->machine_register_stack);
-	}
-#endif
+    if (cont->machine.register_stack) {
+	size += cont->machine.register_stack_size * sizeof(*cont->machine.register_stack);
     }
+#endif
     return size;
 }
 
+void
+rb_fiber_mark_self(rb_fiber_t *fib)
+{
+    if (fib)
+	rb_gc_mark(fib->cont.self);
+}
+
 static void
 fiber_mark(void *ptr)
 {
     RUBY_MARK_ENTER("cont");
     if (ptr) {
 	rb_fiber_t *fib = ptr;
-	rb_gc_mark(fib->prev);
+	rb_fiber_mark_self(fib->prev);
 	cont_mark(&fib->cont);
     }
     RUBY_MARK_LEAVE("cont");
 }
 
 static void
-fiber_link_join(rb_fiber_t *fib)
-{
-    VALUE current_fibval = rb_fiber_current();
-    rb_fiber_t *current_fib;
-    GetFiberPtr(current_fibval, current_fib);
-
-    /* join fiber link */
-    fib->next_fiber = current_fib->next_fiber;
-    fib->prev_fiber = current_fib;
-    current_fib->next_fiber->prev_fiber = fib;
-    current_fib->next_fiber = fib;
-}
-
-static void
-fiber_link_remove(rb_fiber_t *fib)
-{
-    fib->prev_fiber->next_fiber = fib->next_fiber;
-    fib->next_fiber->prev_fiber = fib->prev_fiber;
-}
-
-static void
 fiber_free(void *ptr)
 {
     RUBY_FREE_ENTER("fiber");
@@ -307,7 +331,6 @@ fiber_free(void *ptr)
 	    fib->cont.saved_thread.local_storage) {
 	    st_free_table(fib->cont.saved_thread.local_storage);
 	}
-	fiber_link_remove(fib);
 
 	cont_free(&fib->cont);
     }
@@ -319,13 +342,13 @@ fiber_memsize(const void *ptr)
 {
     const rb_fiber_t *fib = ptr;
     size_t size = 0;
-    if (ptr) {
-	size = sizeof(*fib);
-	if (fib->cont.type != ROOT_FIBER_CONTEXT) {
-	    size += st_memsize(fib->cont.saved_thread.local_storage);
-	}
-	size += cont_memsize(&fib->cont);
+
+    size = sizeof(*fib);
+    if (fib->cont.type != ROOT_FIBER_CONTEXT &&
+	fib->cont.saved_thread.local_storage != NULL) {
+	size += st_memsize(fib->cont.saved_thread.local_storage);
     }
+    size += cont_memsize(&fib->cont);
     return size;
 }
 
@@ -345,62 +368,82 @@ cont_save_machine_stack(rb_thread_t *th, rb_context_t *cont)
 {
     size_t size;
 
-    SET_MACHINE_STACK_END(&th->machine_stack_end);
+    SET_MACHINE_STACK_END(&th->machine.stack_end);
 #ifdef __ia64
-    th->machine_register_stack_end = rb_ia64_bsp();
+    th->machine.register_stack_end = rb_ia64_bsp();
 #endif
 
-    if (th->machine_stack_start > th->machine_stack_end) {
-	size = cont->machine_stack_size = th->machine_stack_start - th->machine_stack_end;
-	cont->machine_stack_src = th->machine_stack_end;
+    if (th->machine.stack_start > th->machine.stack_end) {
+	size = cont->machine.stack_size = th->machine.stack_start - th->machine.stack_end;
+	cont->machine.stack_src = th->machine.stack_end;
     }
     else {
-	size = cont->machine_stack_size = th->machine_stack_end - th->machine_stack_start;
-	cont->machine_stack_src = th->machine_stack_start;
+	size = cont->machine.stack_size = th->machine.stack_end - th->machine.stack_start;
+	cont->machine.stack_src = th->machine.stack_start;
     }
 
-    if (cont->machine_stack) {
-	REALLOC_N(cont->machine_stack, VALUE, size);
+    if (cont->machine.stack) {
+	REALLOC_N(cont->machine.stack, VALUE, size);
     }
     else {
-	cont->machine_stack = ALLOC_N(VALUE, size);
+	cont->machine.stack = ALLOC_N(VALUE, size);
     }
 
     FLUSH_REGISTER_WINDOWS;
-    MEMCPY(cont->machine_stack, cont->machine_stack_src, VALUE, size);
+    MEMCPY(cont->machine.stack, cont->machine.stack_src, VALUE, size);
 
 #ifdef __ia64
     rb_ia64_flushrs();
-    size = cont->machine_register_stack_size = th->machine_register_stack_end - th->machine_register_stack_start;
-    cont->machine_register_stack_src = th->machine_register_stack_start;
-    if (cont->machine_register_stack) {
-	REALLOC_N(cont->machine_register_stack, VALUE, size);
+    size = cont->machine.register_stack_size = th->machine.register_stack_end - th->machine.register_stack_start;
+    cont->machine.register_stack_src = th->machine.register_stack_start;
+    if (cont->machine.register_stack) {
+	REALLOC_N(cont->machine.register_stack, VALUE, size);
     }
     else {
-	cont->machine_register_stack = ALLOC_N(VALUE, size);
+	cont->machine.register_stack = ALLOC_N(VALUE, size);
     }
 
-    MEMCPY(cont->machine_register_stack, cont->machine_register_stack_src, VALUE, size);
+    MEMCPY(cont->machine.register_stack, cont->machine.register_stack_src, VALUE, size);
 #endif
 }
 
 static const rb_data_type_t cont_data_type = {
     "continuation",
     {cont_mark, cont_free, cont_memsize,},
+    0, 0, RUBY_TYPED_FREE_IMMEDIATELY
 };
 
-static void
+static inline void
 cont_save_thread(rb_context_t *cont, rb_thread_t *th)
 {
+    rb_thread_t *sth = &cont->saved_thread;
+
     /* save thread context */
-    cont->saved_thread = *th;
-    /* saved_thread->machine_stack_(start|end) should be NULL */
+    sth->stack = th->stack;
+    sth->stack_size = th->stack_size;
+    sth->local_storage = th->local_storage;
+    sth->cfp = th->cfp;
+    sth->safe_level = th->safe_level;
+    sth->raised_flag = th->raised_flag;
+    sth->state = th->state;
+    sth->status = th->status;
+    sth->tag = th->tag;
+    sth->protect_tag = th->protect_tag;
+    sth->errinfo = th->errinfo;
+    sth->first_proc = th->first_proc;
+    sth->root_lep = th->root_lep;
+    sth->root_svar = th->root_svar;
+    sth->ensure_list = th->ensure_list;
+
+    sth->trace_arg = th->trace_arg;
+
+    /* saved_thread->machine.stack_(start|end) should be NULL */
     /* because it may happen GC afterward */
-    cont->saved_thread.machine_stack_start = 0;
-    cont->saved_thread.machine_stack_end = 0;
+    sth->machine.stack_start = 0;
+    sth->machine.stack_end = 0;
 #ifdef __ia64
-    cont->saved_thread.machine_register_stack_start = 0;
-    cont->saved_thread.machine_register_stack_end = 0;
+    sth->machine.register_stack_start = 0;
+    sth->machine.register_stack_end = 0;
 #endif
 }
 
@@ -409,7 +452,12 @@ cont_init(rb_context_t *cont, rb_thread_t *th)
 {
     /* save thread context */
     cont_save_thread(cont, th);
+    cont->saved_thread.self = th->self;
+    cont->saved_thread.machine.stack_maxsize = th->machine.stack_maxsize;
+    cont->saved_thread.fiber = th->fiber;
     cont->saved_thread.local_storage = 0;
+    cont->saved_thread.local_storage_recursive_hash = Qnil;
+    cont->saved_thread.local_storage_recursive_hash_for_trace = Qnil;
 }
 
 static rb_context_t *
@@ -427,20 +475,19 @@ cont_new(VALUE klass)
 }
 
 static VALUE
-cont_capture(volatile int *stat)
+cont_capture(volatile int *volatile stat)
 {
-    rb_context_t *cont;
-    rb_thread_t *th = GET_THREAD(), *sth;
+    rb_context_t *volatile cont;
+    rb_thread_t *th = GET_THREAD();
     volatile VALUE contval;
 
     THREAD_MUST_BE_RUNNING(th);
     rb_vm_stack_to_heap(th);
     cont = cont_new(rb_cContinuation);
     contval = cont->self;
-    sth = &cont->saved_thread;
 
 #ifdef CAPTURE_JUST_VALID_VM_STACK
-    cont->vm_stack_slen = th->cfp->sp + th->mark_stack_len - th->stack;
+    cont->vm_stack_slen = th->cfp->sp - th->stack;
     cont->vm_stack_clen = th->stack + th->stack_size - (VALUE*)th->cfp;
     cont->vm_stack = ALLOC_N(VALUE, cont->vm_stack_slen + cont->vm_stack_clen);
     MEMCPY(cont->vm_stack, th->stack, VALUE, cont->vm_stack_slen);
@@ -449,13 +496,30 @@ cont_capture(volatile int *stat)
     cont->vm_stack = ALLOC_N(VALUE, th->stack_size);
     MEMCPY(cont->vm_stack, th->stack, VALUE, th->stack_size);
 #endif
-    sth->stack = 0;
+    cont->saved_thread.stack = 0;
 
     cont_save_machine_stack(th, cont);
 
+    /* backup ensure_list to array for search in another context */
+    {
+	rb_ensure_list_t *p;
+	int size = 0;
+	rb_ensure_entry_t *entry;
+	for (p=th->ensure_list; p; p=p->next)
+	    size++;
+	entry = cont->ensure_array = ALLOC_N(rb_ensure_entry_t,size+1);
+	for (p=th->ensure_list; p; p=p->next) {
+	    if (!p->entry.marker)
+		p->entry.marker = rb_ary_tmp_new(0); /* dummy object */
+	    *entry++ = p->entry;
+	}
+	entry->marker = 0;
+    }
+
     if (ruby_setjmp(cont->jmpbuf)) {
-	volatile VALUE value;
+	VALUE value;
 
+	VAR_INITIALIZED(cont);
 	value = cont->value;
 	if (cont->argc == -1) rb_exc_raise(value);
 	cont->value = Qnil;
@@ -468,7 +532,7 @@ cont_capture(volatile int *stat)
     }
 }
 
-static void
+static inline void
 cont_restore_thread(rb_context_t *cont)
 {
     rb_thread_t *th = GET_THREAD(), *sth = &cont->saved_thread;
@@ -476,16 +540,14 @@ cont_restore_thread(rb_context_t *cont)
     /* restore thread context */
     if (cont->type == CONTINUATION_CONTEXT) {
 	/* continuation */
-	VALUE fib;
+	rb_fiber_t *fib;
 
 	th->fiber = sth->fiber;
 	fib = th->fiber ? th->fiber : th->root_fiber;
 
 	if (fib) {
-	    rb_fiber_t *fcont;
-	    GetFiberPtr(fib, fcont);
-	    th->stack_size = fcont->cont.saved_thread.stack_size;
-	    th->stack = fcont->cont.saved_thread.stack;
+	    th->stack_size = fib->cont.saved_thread.stack_size;
+	    th->stack = fib->cont.saved_thread.stack;
 	}
 #ifdef CAPTURE_JUST_VALID_VM_STACK
 	MEMCPY(th->stack, cont->vm_stack, VALUE, cont->vm_stack_slen);
@@ -500,7 +562,9 @@ cont_restore_thread(rb_context_t *cont)
 	th->stack = sth->stack;
 	th->stack_size = sth->stack_size;
 	th->local_storage = sth->local_storage;
-	th->fiber = cont->self;
+	th->local_storage_recursive_hash = sth->local_storage_recursive_hash;
+	th->local_storage_recursive_hash_for_trace = sth->local_storage_recursive_hash_for_trace;
+	th->fiber = (rb_fiber_t*)cont;
     }
 
     th->cfp = sth->cfp;
@@ -514,6 +578,8 @@ cont_restore_thread(rb_context_t *cont)
     th->first_proc = sth->first_proc;
     th->root_lep = sth->root_lep;
     th->root_svar = sth->root_svar;
+    th->ensure_list = sth->ensure_list;
+
 }
 
 #if FIBER_USE_NATIVE
@@ -525,7 +591,7 @@ fiber_set_stack_location(void)
     VALUE *ptr;
 
     SET_MACHINE_STACK_END(&ptr);
-    th->machine_stack_start = (void*)(((VALUE)ptr & RB_PAGE_MASK) + STACK_UPPER((void *)&ptr, 0, RB_PAGE_SIZE));
+    th->machine.stack_start = (void*)(((VALUE)ptr & RB_PAGE_MASK) + STACK_UPPER((void *)&ptr, 0, RB_PAGE_SIZE));
 }
 
 static VOID CALLBACK
@@ -568,9 +634,10 @@ fiber_machine_stack_alloc(size_t size)
 	void *page;
 	STACK_GROW_DIR_DETECTION;
 
+	errno = 0;
 	ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, FIBER_STACK_FLAGS, -1, 0);
 	if (ptr == MAP_FAILED) {
-	    rb_raise(rb_eFiberError, "can't alloc machine stack to fiber");
+	    rb_raise(rb_eFiberError, "can't alloc machine stack to fiber: %s", strerror(errno));
 	}
 
 	/* guard page setup */
@@ -590,6 +657,10 @@ fiber_initialize_machine_stack_context(rb_fiber_t *fib, size_t size)
     rb_thread_t *sth = &fib->cont.saved_thread;
 
 #ifdef _WIN32
+# if defined(_MSC_VER) && _MSC_VER <= 1200
+#   define CreateFiberEx(cs, stacksize, flags, entry, param) \
+    CreateFiber((stacksize), (entry), (param))
+# endif
     fib->fib_handle = CreateFiberEx(size - 1, size, 0, fiber_entry, NULL);
     if (!fib->fib_handle) {
 	/* try to release unnecessary fibers & retry to create */
@@ -599,7 +670,7 @@ fiber_initialize_machine_stack_context(rb_fiber_t *fib, size_t size)
 	    rb_raise(rb_eFiberError, "can't create fiber");
 	}
     }
-    sth->machine_stack_maxsize = size;
+    sth->machine.stack_maxsize = size;
 #else /* not WIN32 */
     ucontext_t *context = &fib->context;
     char *ptr;
@@ -610,12 +681,14 @@ fiber_initialize_machine_stack_context(rb_fiber_t *fib, size_t size)
     context->uc_link = NULL;
     context->uc_stack.ss_sp = ptr;
     context->uc_stack.ss_size = size;
+    fib->ss_sp = ptr;
+    fib->ss_size = size;
     makecontext(context, rb_fiber_start, 0);
-    sth->machine_stack_start = (VALUE*)(ptr + STACK_DIR_UPPER(0, size));
-    sth->machine_stack_maxsize = size - RB_PAGE_SIZE;
+    sth->machine.stack_start = (VALUE*)(ptr + STACK_DIR_UPPER(0, size));
+    sth->machine.stack_maxsize = size - RB_PAGE_SIZE;
 #endif
 #ifdef __ia64
-    sth->machine_register_stack_maxsize = sth->machine_stack_maxsize;
+    sth->machine.register_stack_maxsize = sth->machine.stack_maxsize;
 #endif
 }
 
@@ -632,31 +705,31 @@ fiber_setcontext(rb_fiber_t *newfib, rb_fiber_t *oldfib)
 
     /* restore thread context */
     cont_restore_thread(&newfib->cont);
-    th->machine_stack_maxsize = sth->machine_stack_maxsize;
-    if (sth->machine_stack_end && (newfib != oldfib)) {
-	rb_bug("fiber_setcontext: sth->machine_stack_end has non zero value");
+    th->machine.stack_maxsize = sth->machine.stack_maxsize;
+    if (sth->machine.stack_end && (newfib != oldfib)) {
+	rb_bug("fiber_setcontext: sth->machine.stack_end has non zero value");
     }
 
     /* save  oldfib's machine stack */
     if (oldfib->status != TERMINATED) {
 	STACK_GROW_DIR_DETECTION;
-	SET_MACHINE_STACK_END(&th->machine_stack_end);
+	SET_MACHINE_STACK_END(&th->machine.stack_end);
 	if (STACK_DIR_UPPER(0, 1)) {
-	    oldfib->cont.machine_stack_size = th->machine_stack_start - th->machine_stack_end;
-	    oldfib->cont.machine_stack = th->machine_stack_end;
+	    oldfib->cont.machine.stack_size = th->machine.stack_start - th->machine.stack_end;
+	    oldfib->cont.machine.stack = th->machine.stack_end;
 	}
 	else {
-	    oldfib->cont.machine_stack_size = th->machine_stack_end - th->machine_stack_start;
-	    oldfib->cont.machine_stack = th->machine_stack_start;
+	    oldfib->cont.machine.stack_size = th->machine.stack_end - th->machine.stack_start;
+	    oldfib->cont.machine.stack = th->machine.stack_start;
 	}
     }
     /* exchange machine_stack_start between oldfib and newfib */
-    oldfib->cont.saved_thread.machine_stack_start = th->machine_stack_start;
-    th->machine_stack_start = sth->machine_stack_start;
-    /* oldfib->machine_stack_end should be NULL */
-    oldfib->cont.saved_thread.machine_stack_end = 0;
+    oldfib->cont.saved_thread.machine.stack_start = th->machine.stack_start;
+    th->machine.stack_start = sth->machine.stack_start;
+    /* oldfib->machine.stack_end should be NULL */
+    oldfib->cont.saved_thread.machine.stack_end = 0;
 #ifndef _WIN32
-    if (!newfib->context.uc_stack.ss_sp && th->root_fiber != newfib->cont.self) {
+    if (!newfib->context.uc_stack.ss_sp && th->root_fiber != newfib) {
 	rb_bug("non_root_fiber->context.uc_stac.ss_sp should not be NULL");
     }
 #endif
@@ -687,16 +760,16 @@ cont_restore_1(rb_context_t *cont)
 	    ((_JUMP_BUFFER*)(&buf))->Frame;
     }
 #endif
-    if (cont->machine_stack_src) {
+    if (cont->machine.stack_src) {
 	FLUSH_REGISTER_WINDOWS;
-	MEMCPY(cont->machine_stack_src, cont->machine_stack,
-		VALUE, cont->machine_stack_size);
+	MEMCPY(cont->machine.stack_src, cont->machine.stack,
+		VALUE, cont->machine.stack_size);
     }
 
 #ifdef __ia64
-    if (cont->machine_register_stack_src) {
-	MEMCPY(cont->machine_register_stack_src, cont->machine_register_stack,
-	       VALUE, cont->machine_register_stack_size);
+    if (cont->machine.register_stack_src) {
+	MEMCPY(cont->machine.register_stack_src, cont->machine.register_stack,
+	       VALUE, cont->machine.register_stack_size);
     }
 #endif
 
@@ -731,7 +804,7 @@ register_stack_extend(rb_context_t *cont, VALUE *vp, VALUE *curr_bsp)
         E(k) = E(l) = E(m) = E(n) = E(o) =
         E(p) = E(q) = E(r) = E(s) = E(t) = 0;
     }
-    if (curr_bsp < cont->machine_register_stack_src+cont->machine_register_stack_size) {
+    if (curr_bsp < cont->machine.register_stack_src+cont->machine.register_stack_size) {
         register_stack_extend(cont, vp, (VALUE*)rb_ia64_bsp());
     }
     cont_restore_0(cont, vp);
@@ -743,7 +816,7 @@ register_stack_extend(rb_context_t *cont, VALUE *vp, VALUE *curr_bsp)
 static void
 cont_restore_0(rb_context_t *cont, VALUE *addr_in_prev_frame)
 {
-    if (cont->machine_stack_src) {
+    if (cont->machine.stack_src) {
 #ifdef HAVE_ALLOCA
 #define STACK_PAD_SIZE 1
 #else
@@ -756,7 +829,7 @@ cont_restore_0(rb_context_t *cont, VALUE *addr_in_prev_frame)
 	    /* Stack grows downward */
 #endif
 #if STACK_GROW_DIRECTION <= 0
-	    volatile VALUE *const end = cont->machine_stack_src;
+	    volatile VALUE *const end = cont->machine.stack_src;
 	    if (&space[0] > end) {
 # ifdef HAVE_ALLOCA
 		volatile VALUE *sp = ALLOCA_N(VALUE, &space[0] - end);
@@ -772,7 +845,7 @@ cont_restore_0(rb_context_t *cont, VALUE *addr_in_prev_frame)
 	    /* Stack grows upward */
 #endif
 #if STACK_GROW_DIRECTION >= 0
-	    volatile VALUE *const end = cont->machine_stack_src + cont->machine_stack_size;
+	    volatile VALUE *const end = cont->machine.stack_src + cont->machine.stack_size;
 	    if (&space[STACK_PAD_SIZE] < end) {
 # ifdef HAVE_ALLOCA
 		volatile VALUE *sp = ALLOCA_N(VALUE, end - &space[STACK_PAD_SIZE]);
@@ -818,6 +891,24 @@ cont_restore_0(rb_context_t *cont, VALUE *addr_in_prev_frame)
  *     Ron
  *     Max
  *
+ *  Also you can call callcc in other methods:
+ *
+ *     require "continuation"
+ *
+ *     def g
+ *       arr = [ "Freddie", "Herbie", "Ron", "Max", "Ringo" ]
+ *       cc = callcc { |cc| cc }
+ *       puts arr.shift
+ *       return cc, arr.size
+ *     end
+ *
+ *     def f
+ *       c, size = g
+ *       c.call(c) if size > 1
+ *     end
+ *
+ *     f
+ *
  *  This (somewhat contrived) example allows the inner loop to abandon
  *  processing early:
  *
@@ -872,7 +963,7 @@ rb_callcc(VALUE self)
 }
 
 static VALUE
-make_passing_arg(int argc, VALUE *argv)
+make_passing_arg(int argc, const VALUE *argv)
 {
     switch (argc) {
       case 0:
@@ -884,6 +975,80 @@ make_passing_arg(int argc, VALUE *argv)
     }
 }
 
+/* CAUTION!! : Currently, error in rollback_func is not supported  */
+/* same as rb_protect if set rollback_func to NULL */
+void
+ruby_register_rollback_func_for_ensure(VALUE (*ensure_func)(ANYARGS), VALUE (*rollback_func)(ANYARGS))
+{
+    st_table **table_p = &GET_VM()->ensure_rollback_table;
+    if (UNLIKELY(*table_p == NULL)) {
+	*table_p = st_init_numtable();
+    }
+    st_insert(*table_p, (st_data_t)ensure_func, (st_data_t)rollback_func);
+}
+
+static inline VALUE
+lookup_rollback_func(VALUE (*ensure_func)(ANYARGS))
+{
+    st_table *table = GET_VM()->ensure_rollback_table;
+    st_data_t val;
+    if (table && st_lookup(table, (st_data_t)ensure_func, &val))
+	return (VALUE) val;
+    return Qundef;
+}
+
+
+static inline void
+rollback_ensure_stack(VALUE self,rb_ensure_list_t *current,rb_ensure_entry_t *target)
+{
+    rb_ensure_list_t *p;
+    rb_ensure_entry_t *entry;
+    size_t i;
+    size_t cur_size;
+    size_t target_size;
+    size_t base_point;
+    VALUE (*func)(ANYARGS);
+
+    cur_size = 0;
+    for (p=current; p; p=p->next)
+	cur_size++;
+    target_size = 0;
+    for (entry=target; entry->marker; entry++)
+	target_size++;
+
+    /* search common stack point */
+    p = current;
+    base_point = cur_size;
+    while (base_point) {
+	if (target_size >= base_point &&
+	    p->entry.marker == target[target_size - base_point].marker)
+	    break;
+	base_point --;
+	p = p->next;
+    }
+
+    /* rollback function check */
+    for (i=0; i < target_size - base_point; i++) {
+	if (!lookup_rollback_func(target[i].e_proc)) {
+	    rb_raise(rb_eRuntimeError, "continuation called from out of critical rb_ensure scope");
+	}
+    }
+    /* pop ensure stack */
+    while (cur_size > base_point) {
+	/* escape from ensure block */
+	(*current->entry.e_proc)(current->entry.data2);
+	current = current->next;
+	cur_size--;
+    }
+    /* push ensure stack */
+    while (i--) {
+	func = (VALUE (*)(ANYARGS)) lookup_rollback_func(target[i].e_proc);
+	if ((VALUE)func != Qundef) {
+	    (*func)(target[i].data2);
+	}
+    }
+}
+
 /*
  *  call-seq:
  *     cont.call(args, ...)
@@ -914,13 +1079,11 @@ rb_cont_call(int argc, VALUE *argv, VALUE contval)
 	rb_raise(rb_eRuntimeError, "continuation called across stack rewinding barrier");
     }
     if (cont->saved_thread.fiber) {
-	rb_fiber_t *fcont;
-	GetFiberPtr(cont->saved_thread.fiber, fcont);
-
 	if (th->fiber != cont->saved_thread.fiber) {
 	    rb_raise(rb_eRuntimeError, "continuation called across fiber");
 	}
     }
+    rollback_ensure_stack(contval, th->ensure_list, cont->ensure_array);
 
     cont->argc = argc;
     cont->value = make_passing_arg(argc, argv);
@@ -949,7 +1112,7 @@ rb_cont_call(int argc, VALUE *argv, VALUE contval)
  *  comes with a small 4KB stack. This enables the fiber to be paused from deeply
  *  nested function calls within the fiber block.
  *
- *  When a fiber is created it will not run automatically. Rather it must be
+ *  When a fiber is created it will not run automatically. Rather it must
  *  be explicitly asked to run using the <code>Fiber#resume</code> method.
  *  The code running inside the fiber can give up control by calling
  *  <code>Fiber.yield</code> in which case it yields control back to caller
@@ -1001,6 +1164,7 @@ rb_cont_call(int argc, VALUE *argv, VALUE contval)
 static const rb_data_type_t fiber_data_type = {
     "fiber",
     {fiber_mark, fiber_free, fiber_memsize,},
+    0, 0, RUBY_TYPED_FREE_IMMEDIATELY
 };
 
 static VALUE
@@ -1020,12 +1184,11 @@ fiber_t_alloc(VALUE fibval)
     }
 
     THREAD_MUST_BE_RUNNING(th);
-    fib = ALLOC(rb_fiber_t);
-    memset(fib, 0, sizeof(rb_fiber_t));
+    fib = ZALLOC(rb_fiber_t);
     fib->cont.self = fibval;
     fib->cont.type = FIBER_CONTEXT;
     cont_init(&fib->cont, th);
-    fib->prev = Qnil;
+    fib->prev = NULL;
     fib->status = CREATED;
 
     DATA_PTR(fibval) = fib;
@@ -1039,6 +1202,7 @@ fiber_init(VALUE fibval, VALUE proc)
     rb_fiber_t *fib = fiber_t_alloc(fibval);
     rb_context_t *cont = &fib->cont;
     rb_thread_t *th = &cont->saved_thread;
+    rb_thread_t *cth = GET_THREAD();
 
     /* initialize cont */
     cont->vm_stack = 0;
@@ -1046,34 +1210,33 @@ fiber_init(VALUE fibval, VALUE proc)
     th->stack = 0;
     th->stack_size = 0;
 
-    fiber_link_join(fib);
-
-    th->stack_size = th->vm->default_params.fiber_vm_stack_size / sizeof(VALUE);
+    th->stack_size = cth->vm->default_params.fiber_vm_stack_size / sizeof(VALUE);
     th->stack = ALLOC_N(VALUE, th->stack_size);
 
     th->cfp = (void *)(th->stack + th->stack_size);
     th->cfp--;
     th->cfp->pc = 0;
-    th->cfp->sp = th->stack + 1;
+    th->cfp->sp = th->stack + 2;
 #if VM_DEBUG_BP_CHECK
     th->cfp->bp_check = 0;
 #endif
-    th->cfp->ep = th->stack;
-    *th->cfp->ep = VM_ENVVAL_BLOCK_PTR(0);
+    th->cfp->ep = th->stack + 1;
+    th->cfp->ep[ 0] = VM_ENVVAL_BLOCK_PTR(0);
+    th->cfp->ep[-1] = 0;
     th->cfp->self = Qnil;
-    th->cfp->klass = Qnil;
-    th->cfp->flag = 0;
+    th->cfp->flag = VM_FRAME_MAGIC_DUMMY | VM_FRAME_FLAG_FINISH;
     th->cfp->iseq = 0;
     th->cfp->proc = 0;
     th->cfp->block_iseq = 0;
-    th->cfp->me = 0;
     th->tag = 0;
     th->local_storage = st_init_numtable();
+    th->local_storage_recursive_hash = Qnil;
+    th->local_storage_recursive_hash_for_trace = Qnil;
 
     th->first_proc = proc;
 
 #if !FIBER_USE_NATIVE
-    MEMCPY(&cont->jmpbuf, &th->root_jmpbuf, rb_jmpbuf_t, 1);
+    MEMCPY(&cont->jmpbuf, &cth->root_jmpbuf, rb_jmpbuf_t, 1);
 #endif
 
     return fibval;
@@ -1092,72 +1255,30 @@ rb_fiber_new(VALUE (*func)(ANYARGS), VALUE obj)
     return fiber_init(fiber_alloc(rb_cFiber), rb_proc_new(func, obj));
 }
 
-static VALUE
-return_fiber(void)
-{
-    rb_fiber_t *fib;
-    VALUE curr = rb_fiber_current();
-    VALUE prev;
-    GetFiberPtr(curr, fib);
-
-    prev = fib->prev;
-    if (NIL_P(prev)) {
-	const VALUE root_fiber = GET_THREAD()->root_fiber;
-
-	if (root_fiber == curr) {
-	    rb_raise(rb_eFiberError, "can't yield from root fiber");
-	}
-	return root_fiber;
-    }
-    else {
-	fib->prev = Qnil;
-	return prev;
-    }
-}
-
-VALUE rb_fiber_transfer(VALUE fib, int argc, VALUE *argv);
-
-static void
-rb_fiber_terminate(rb_fiber_t *fib)
-{
-    VALUE value = fib->cont.value;
-    fib->status = TERMINATED;
-#if FIBER_USE_NATIVE && !defined(_WIN32)
-    /* Ruby must not switch to other thread until storing terminated_machine_stack */
-    terminated_machine_stack.ptr = fib->context.uc_stack.ss_sp;
-    terminated_machine_stack.size = fib->context.uc_stack.ss_size / sizeof(VALUE);
-    fib->context.uc_stack.ss_sp = NULL;
-    fib->cont.machine_stack = NULL;
-    fib->cont.machine_stack_size = 0;
-#endif
-    rb_fiber_transfer(return_fiber(), 1, &value);
-}
+static void rb_fiber_terminate(rb_fiber_t *fib);
 
 void
 rb_fiber_start(void)
 {
     rb_thread_t *th = GET_THREAD();
-    rb_fiber_t *fib;
-    rb_context_t *cont;
+    rb_fiber_t *fib = th->fiber;
     rb_proc_t *proc;
     int state;
 
-    GetFiberPtr(th->fiber, fib);
-    cont = &fib->cont;
-
     TH_PUSH_TAG(th);
     if ((state = EXEC_TAG()) == 0) {
+	rb_context_t *cont = &VAR_FROM_MEMORY(fib)->cont;
 	int argc;
-	VALUE *argv, args;
+	const VALUE *argv, args = cont->value;
 	GetProcPtr(cont->saved_thread.first_proc, proc);
-	args = cont->value;
-	argv = (argc = cont->argc) > 1 ? RARRAY_PTR(args) : &args;
+	argv = (argc = cont->argc) > 1 ? RARRAY_CONST_PTR(args) : &args;
 	cont->value = Qnil;
 	th->errinfo = Qnil;
 	th->root_lep = rb_vm_ep_local_ep(proc->block.ep);
-	th->root_svar = Qnil;
-
+	th->root_svar = Qfalse;
 	fib->status = RUNNING;
+
+	EXEC_EVENT_HOOK(th, RUBY_EVENT_FIBER_SWITCH, th->self, 0, 0, Qnil);
 	cont->value = rb_vm_invoke_proc(th, proc, argc, argv, 0);
     }
     TH_POP_TAG();
@@ -1191,90 +1312,117 @@ root_fiber_alloc(rb_thread_t *th)
 #endif
 #endif
     fib->status = RUNNING;
-    fib->prev_fiber = fib->next_fiber = fib;
 
     return fib;
 }
 
-VALUE
-rb_fiber_current(void)
+static inline rb_fiber_t*
+fiber_current(void)
 {
     rb_thread_t *th = GET_THREAD();
     if (th->fiber == 0) {
 	/* save root */
 	rb_fiber_t *fib = root_fiber_alloc(th);
-	th->root_fiber = th->fiber = fib->cont.self;
+	th->root_fiber = th->fiber = fib;
     }
     return th->fiber;
 }
 
-static VALUE
-fiber_store(rb_fiber_t *next_fib)
+static inline rb_fiber_t*
+return_fiber(void)
+{
+    rb_fiber_t *fib = fiber_current();
+    rb_fiber_t *prev = fib->prev;
+
+    if (!prev) {
+	rb_fiber_t *root_fiber = GET_THREAD()->root_fiber;
+
+	if (root_fiber == fib) {
+	    rb_raise(rb_eFiberError, "can't yield from root fiber");
+	}
+	return root_fiber;
+    }
+    else {
+	fib->prev = NULL;
+	return prev;
+    }
+}
+
+VALUE
+rb_fiber_current(void)
+{
+    return fiber_current()->cont.self;
+}
+
+static inline VALUE
+fiber_store(rb_fiber_t *next_fib, rb_thread_t *th)
 {
-    rb_thread_t *th = GET_THREAD();
     rb_fiber_t *fib;
 
     if (th->fiber) {
-	GetFiberPtr(th->fiber, fib);
+	fib = th->fiber;
 	cont_save_thread(&fib->cont, th);
     }
     else {
 	/* create current fiber */
 	fib = root_fiber_alloc(th);
-	th->root_fiber = th->fiber = fib->cont.self;
+	th->root_fiber = th->fiber = fib;
     }
 
-#if !FIBER_USE_NATIVE
-    cont_save_machine_stack(th, &fib->cont);
-#endif
-
-    if (FIBER_USE_NATIVE || ruby_setjmp(fib->cont.jmpbuf)) {
 #if FIBER_USE_NATIVE
-	fiber_setcontext(next_fib, fib);
+    fiber_setcontext(next_fib, fib);
+    /* restored */
 #ifndef _WIN32
-	if (terminated_machine_stack.ptr) {
-	    if (machine_stack_cache_index < MAX_MAHINE_STACK_CACHE) {
-		machine_stack_cache[machine_stack_cache_index].ptr = terminated_machine_stack.ptr;
-		machine_stack_cache[machine_stack_cache_index].size = terminated_machine_stack.size;
-		machine_stack_cache_index++;
+    if (terminated_machine_stack.ptr) {
+	if (machine_stack_cache_index < MAX_MACHINE_STACK_CACHE) {
+	    machine_stack_cache[machine_stack_cache_index].ptr = terminated_machine_stack.ptr;
+	    machine_stack_cache[machine_stack_cache_index].size = terminated_machine_stack.size;
+	    machine_stack_cache_index++;
+	}
+	else {
+	    if (terminated_machine_stack.ptr != fib->cont.machine.stack) {
+		munmap((void*)terminated_machine_stack.ptr, terminated_machine_stack.size * sizeof(VALUE));
 	    }
 	    else {
-		if (terminated_machine_stack.ptr != fib->cont.machine_stack) {
-		    munmap((void*)terminated_machine_stack.ptr, terminated_machine_stack.size * sizeof(VALUE));
-		}
-		else {
-		    rb_bug("terminated fiber resumed");
-		}
+		rb_bug("terminated fiber resumed");
 	    }
-	    terminated_machine_stack.ptr = NULL;
-	    terminated_machine_stack.size = 0;
 	}
-#endif
-#endif
+	terminated_machine_stack.ptr = NULL;
+	terminated_machine_stack.size = 0;
+    }
+#endif /* not _WIN32 */
+    fib = th->fiber;
+    if (fib->cont.argc == -1) rb_exc_raise(fib->cont.value);
+    return fib->cont.value;
+
+#else /* FIBER_USE_NATIVE */
+    cont_save_machine_stack(th, &fib->cont);
+    if (ruby_setjmp(fib->cont.jmpbuf)) {
 	/* restored */
-	GetFiberPtr(th->fiber, fib);
+	fib = th->fiber;
 	if (fib->cont.argc == -1) rb_exc_raise(fib->cont.value);
+	if (next_fib->cont.value == Qundef) {
+	    cont_restore_0(&next_fib->cont, &next_fib->cont.value);
+	    rb_bug("rb_fiber_resume: unreachable");
+	}
 	return fib->cont.value;
     }
-#if !FIBER_USE_NATIVE
     else {
-	return Qundef;
+	VALUE undef = Qundef;
+	cont_restore_0(&next_fib->cont, &undef);
+	rb_bug("rb_fiber_resume: unreachable");
     }
-#endif
+#endif /* FIBER_USE_NATIVE */
 }
 
 static inline VALUE
-fiber_switch(VALUE fibval, int argc, VALUE *argv, int is_resume)
+fiber_switch(rb_fiber_t *fib, int argc, const VALUE *argv, int is_resume)
 {
     VALUE value;
-    rb_fiber_t *fib;
-    rb_context_t *cont;
+    rb_context_t *cont = &fib->cont;
     rb_thread_t *th = GET_THREAD();
 
-    GetFiberPtr(fibval, fib);
-    cont = &fib->cont;
-
-    if (th->fiber == fibval) {
+    if (th->fiber == fib) {
 	/* ignore fiber context switch
          * because destination fiber is same as current fiber
 	 */
@@ -1289,34 +1437,25 @@ fiber_switch(VALUE fibval, int argc, VALUE *argv, int is_resume)
     }
     else if (fib->status == TERMINATED) {
 	value = rb_exc_new2(rb_eFiberError, "dead fiber called");
-	if (th->fiber != fibval) {
-	    GetFiberPtr(th->fiber, fib);
-	    if (fib->status != TERMINATED) rb_exc_raise(value);
-	    fibval = th->root_fiber;
-	}
-	else {
-	    fibval = fib->prev;
-	    if (NIL_P(fibval)) fibval = th->root_fiber;
-	}
-	GetFiberPtr(fibval, fib);
-	cont = &fib->cont;
+
+	if (th->fiber->status != TERMINATED) rb_exc_raise(value);
+
+	/* th->fiber is also dead => switch to root fiber */
+	/* (this means we're being called from rb_fiber_terminate, */
+	/* and the terminated fiber's return_fiber() is already dead) */
+	cont = &th->root_fiber->cont;
 	cont->argc = -1;
 	cont->value = value;
 #if FIBER_USE_NATIVE
-	{
-	    VALUE oldfibval;
-	    rb_fiber_t *oldfib;
-	    oldfibval = rb_fiber_current();
-	    GetFiberPtr(oldfibval, oldfib);
-	    fiber_setcontext(fib, oldfib);
-	}
+	fiber_setcontext(th->root_fiber, th->fiber);
 #else
 	cont_restore_0(cont, &value);
 #endif
+	/* unreachable */
     }
 
     if (is_resume) {
-	fib->prev = rb_fiber_current();
+	fib->prev = fiber_current();
     }
     else {
 	/* restore `tracing' context. see [Feature #4347] */
@@ -1326,56 +1465,69 @@ fiber_switch(VALUE fibval, int argc, VALUE *argv, int is_resume)
     cont->argc = argc;
     cont->value = make_passing_arg(argc, argv);
 
-    value = fiber_store(fib);
-#if !FIBER_USE_NATIVE
-    if (value == Qundef) {
-	cont_restore_0(cont, &value);
-	rb_bug("rb_fiber_resume: unreachable");
-    }
-#endif
+    value = fiber_store(fib, th);
     RUBY_VM_CHECK_INTS(th);
 
+    EXEC_EVENT_HOOK(th, RUBY_EVENT_FIBER_SWITCH, th->self, 0, 0, Qnil);
+
     return value;
 }
 
 VALUE
-rb_fiber_transfer(VALUE fib, int argc, VALUE *argv)
+rb_fiber_transfer(VALUE fibval, int argc, const VALUE *argv)
 {
+    rb_fiber_t *fib;
+    GetFiberPtr(fibval, fib);
     return fiber_switch(fib, argc, argv, 0);
 }
 
+static void
+rb_fiber_terminate(rb_fiber_t *fib)
+{
+    VALUE value = fib->cont.value;
+    fib->status = TERMINATED;
+#if FIBER_USE_NATIVE && !defined(_WIN32)
+    /* Ruby must not switch to other thread until storing terminated_machine_stack */
+    terminated_machine_stack.ptr = fib->ss_sp;
+    terminated_machine_stack.size = fib->ss_size / sizeof(VALUE);
+    fib->ss_sp = NULL;
+    fib->context.uc_stack.ss_sp = NULL;
+    fib->cont.machine.stack = NULL;
+    fib->cont.machine.stack_size = 0;
+#endif
+    fiber_switch(return_fiber(), 1, &value, 0);
+}
+
 VALUE
-rb_fiber_resume(VALUE fibval, int argc, VALUE *argv)
+rb_fiber_resume(VALUE fibval, int argc, const VALUE *argv)
 {
     rb_fiber_t *fib;
     GetFiberPtr(fibval, fib);
 
-    if (fib->prev != Qnil || fib->cont.type == ROOT_FIBER_CONTEXT) {
+    if (fib->prev != 0 || fib->cont.type == ROOT_FIBER_CONTEXT) {
 	rb_raise(rb_eFiberError, "double resume");
     }
-    if (fib->transfered != 0) {
+    if (fib->transferred != 0) {
 	rb_raise(rb_eFiberError, "cannot resume transferred Fiber");
     }
 
-    return fiber_switch(fibval, argc, argv, 1);
+    return fiber_switch(fib, argc, argv, 1);
 }
 
 VALUE
-rb_fiber_yield(int argc, VALUE *argv)
+rb_fiber_yield(int argc, const VALUE *argv)
 {
-    return rb_fiber_transfer(return_fiber(), argc, argv);
+    return fiber_switch(return_fiber(), argc, argv, 0);
 }
 
 void
 rb_fiber_reset_root_local_storage(VALUE thval)
 {
     rb_thread_t *th;
-    rb_fiber_t	*fib;
 
     GetThreadPtr(thval, th);
     if (th->root_fiber && th->root_fiber != th->fiber) {
-	GetFiberPtr(th->root_fiber, fib);
-	th->local_storage = fib->cont.saved_thread.local_storage;
+	th->local_storage = th->root_fiber->cont.saved_thread.local_storage;
     }
 }
 
@@ -1455,7 +1607,7 @@ rb_fiber_m_resume(int argc, VALUE *argv, VALUE fib)
  *    fiber2.resume
  *    fiber3.resume
  *
- *    <em>produces</em>
+ *  <em>produces</em>
  *
  *    In fiber 2
  *    In fiber 1
@@ -1467,8 +1619,8 @@ rb_fiber_m_transfer(int argc, VALUE *argv, VALUE fibval)
 {
     rb_fiber_t *fib;
     GetFiberPtr(fibval, fib);
-    fib->transfered = 1;
-    return rb_fiber_transfer(fibval, argc, argv);
+    fib->transferred = 1;
+    return fiber_switch(fib, argc, argv, 0);
 }
 
 /*
@@ -1529,7 +1681,7 @@ Init_Cont(void)
 #else /* not WIN32 */
     pagesize = sysconf(_SC_PAGESIZE);
 #endif
-    SET_MACHINE_STACK_END(&th->machine_stack_end);
+    SET_MACHINE_STACK_END(&th->machine.stack_end);
 #endif
 
     rb_cFiber = rb_define_class("Fiber", rb_cObject);
@@ -1540,9 +1692,7 @@ Init_Cont(void)
     rb_define_method(rb_cFiber, "resume", rb_fiber_m_resume, -1);
 }
 
-#if defined __GNUC__ && __GNUC__ >= 4
-#pragma GCC visibility push(default)
-#endif
+RUBY_SYMBOL_EXPORT_BEGIN
 
 void
 ruby_Init_Continuation_body(void)
@@ -1563,6 +1713,4 @@ ruby_Init_Fiber_as_Coroutine(void)
     rb_define_singleton_method(rb_cFiber, "current", rb_fiber_s_current, 0);
 }
 
-#if defined __GNUC__ && __GNUC__ >= 4
-#pragma GCC visibility pop
-#endif
+RUBY_SYMBOL_EXPORT_END
diff --git a/coverage/README b/coverage/README
new file mode 100644
index 0000000000..7e4ff59e2a
--- /dev/null
+++ b/coverage/README
@@ -0,0 +1,17 @@
+Usage
+
+The make task `update-coverage' retrieves simplecov for coverage report.
+
+COVERAGE=1 make test-all TESTS=test/cgi
+
+it generate test coverage to coverage directory.
+
+Limitation
+
+ * test_coverage.rb and test_process.rb broke test suit with SimpleCov
+ * some tests failed randomly.
+
+TODO
+
+ * more reduce bundled simplecov(additional configuration, formatter, etc)
+ * measure rubyspec coverage
diff --git a/cygwin/GNUmakefile.in b/cygwin/GNUmakefile.in
index 5bd414d786..edf02242ee 100644
--- a/cygwin/GNUmakefile.in
+++ b/cygwin/GNUmakefile.in
@@ -33,7 +33,7 @@ WPROGRAM = $(RUBYW_INSTALL_NAME)$(EXEEXT)
 -include uncommon.mk
 
 SOLIBS := $(DLL_BASE_NAME).res.@OBJEXT@ $(SOLIBS)
-EXTOBJS += $(if $(filter-out $(RUBYW_INSTALL_NAME),$(@:$(EXEEXT)=)),$(RUBY_INSTALL_NAME),$(@:$(EXEEXT)=)).res.$(OBJEXT)
+override EXTOBJS += $(if $(filter-out $(RUBYW_INSTALL_NAME),$(@:$(EXEEXT)=)),$(RUBY_INSTALL_NAME),$(@:$(EXEEXT)=)).res.$(OBJEXT)
 RCFILES = $(RUBY_INSTALL_NAME).rc $(RUBYW_INSTALL_NAME).rc $(DLL_BASE_NAME).rc
 RUBYDEF = $(DLL_BASE_NAME).def
 
@@ -67,11 +67,11 @@ $(WPROGRAM): $(RUBYW_INSTALL_NAME).res.@OBJEXT@
 	$(ECHO) linking $@
 	$(Q) $(PURIFY) $(CC) -mwindows -e $(SYMBOL_PREFIX)mainCRTStartup $(LDFLAGS) $(XLDFLAGS) \
 	  $(MAINOBJ) $(EXTOBJS) $(LIBRUBYARG) $(LIBS) -o $@
-$(STUBPROGRAM): $(RUBY_INSTALL_NAME).res.@OBJEXT@ stub.@OBJEXT@
+$(STUBPROGRAM): $(RUBY_INSTALL_NAME).res.@OBJEXT@ win32/stub.@OBJEXT@
 	@rm -f $@
 	$(ECHO) linking $@
 	$(Q) $(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) \
-	  stub.@OBJEXT@ $(EXTOBJS) $(LIBRUBYARG) $(LIBS) -o $@
+	  win32/stub.@OBJEXT@ $(EXTOBJS) $(LIBRUBYARG) $(LIBS) -o $@
 
 $(RUBY_EXP): $(LIBRUBY_A)
 	$(ECHO) creating $@
@@ -86,7 +86,15 @@ GNUmakefile:	$(srcdir)/cygwin/GNUmakefile.in
 ifeq (@target_os@,mingw32)
 $(OBJS) $(MAINOBJ): win32.h
 
-dir.$(OBJEXT) win32.$(OBJEXT): win32/dir.h
+dir.$(OBJEXT) win32/win32.$(OBJEXT): win32/dir.h
+file.$(OBJEXT) win32/win32.$(OBJEXT): win32/file.h
+
+MSYS2_ARG_CONV_EXCL_PARAM = --exclude=;--name=
+
+yes-test-ruby:	 export MSYS2_ARG_CONV_EXCL=$(MSYS2_ARG_CONV_EXCL_PARAM)
+yes-test-all:	 export MSYS2_ARG_CONV_EXCL=$(MSYS2_ARG_CONV_EXCL_PARAM)
+yes-test-almost: export MSYS2_ARG_CONV_EXCL=$(MSYS2_ARG_CONV_EXCL_PARAM)
+
 endif
 
 $(LIBRUBY_SO): $(RUBYDEF)
diff --git a/debug.c b/debug.c
index 4909a45d17..a600259818 100644
--- a/debug.c
+++ b/debug.c
@@ -24,42 +24,12 @@ const union {
     enum ruby_tag_type          tag_type;
     enum node_type              node_type;
     enum ruby_method_ids        method_ids;
+    enum ruby_id_types          id_types;
+    enum ruby_fl_type           fl_types;
+    enum ruby_encoding_consts   encoding_consts;
+    enum ruby_coderange_type    enc_coderange_types;
+    enum ruby_econv_flag_type   econv_flag_types;
     enum {
-        RUBY_ENCODING_INLINE_MAX = ENCODING_INLINE_MAX,
-        RUBY_ENCODING_SHIFT = ENCODING_SHIFT,
-        RUBY_ENC_CODERANGE_MASK    = ENC_CODERANGE_MASK,
-        RUBY_ENC_CODERANGE_UNKNOWN = ENC_CODERANGE_UNKNOWN,
-        RUBY_ENC_CODERANGE_7BIT    = ENC_CODERANGE_7BIT,
-        RUBY_ENC_CODERANGE_VALID   = ENC_CODERANGE_VALID,
-        RUBY_ENC_CODERANGE_BROKEN  = ENC_CODERANGE_BROKEN,
-        RUBY_FL_RESERVED1   = FL_RESERVED1,
-        RUBY_FL_RESERVED2   = FL_RESERVED2,
-        RUBY_FL_FINALIZE    = FL_FINALIZE,
-        RUBY_FL_TAINT       = FL_TAINT,
-        RUBY_FL_UNTRUSTED   = FL_UNTRUSTED,
-        RUBY_FL_EXIVAR      = FL_EXIVAR,
-        RUBY_FL_FREEZE      = FL_FREEZE,
-        RUBY_FL_SINGLETON   = FL_SINGLETON,
-        RUBY_FL_USER0       = FL_USER0,
-        RUBY_FL_USER1       = FL_USER1,
-        RUBY_FL_USER2       = FL_USER2,
-        RUBY_FL_USER3       = FL_USER3,
-        RUBY_FL_USER4       = FL_USER4,
-        RUBY_FL_USER5       = FL_USER5,
-        RUBY_FL_USER6       = FL_USER6,
-        RUBY_FL_USER7       = FL_USER7,
-        RUBY_FL_USER8       = FL_USER8,
-        RUBY_FL_USER9       = FL_USER9,
-        RUBY_FL_USER10      = FL_USER10,
-        RUBY_FL_USER11      = FL_USER11,
-        RUBY_FL_USER12      = FL_USER12,
-        RUBY_FL_USER13      = FL_USER13,
-        RUBY_FL_USER14      = FL_USER14,
-        RUBY_FL_USER15      = FL_USER15,
-        RUBY_FL_USER16      = FL_USER16,
-        RUBY_FL_USER17      = FL_USER17,
-        RUBY_FL_USER18      = FL_USER18,
-        RUBY_FL_USHIFT      = FL_USHIFT,
         RUBY_NODE_TYPESHIFT = NODE_TYPESHIFT,
         RUBY_NODE_TYPEMASK  = NODE_TYPEMASK,
         RUBY_NODE_LSHIFT    = NODE_LSHIFT,
@@ -67,9 +37,7 @@ const union {
     } various;
 } ruby_dummy_gdb_enums;
 
-const VALUE RUBY_FL_USER19    = FL_USER19;
 const SIGNED_VALUE RUBY_NODE_LMASK = NODE_LMASK;
-const VALUE RUBY_ENCODING_MASK  = ENCODING_MASK;
 
 int
 ruby_debug_print_indent(int level, int debug_level, int indent_level)
@@ -139,18 +107,20 @@ ruby_debug_breakpoint(void)
 static void
 set_debug_option(const char *str, int len, void *arg)
 {
-#define SET_WHEN(name, var) do {	    \
+#if defined _WIN32 && RUBY_MSVCRT_VERSION >= 80
+    extern int ruby_w32_rtc_error;
+#endif
+#define SET_WHEN(name, var, val) do {	    \
 	if (len == sizeof(name) - 1 &&	    \
 	    strncmp(str, (name), len) == 0) { \
-	    extern int var;	    \
-	    var = 1;		    \
+	    (var) = (val);		    \
 	    return;			    \
 	}				    \
     } while (0)
-    SET_WHEN("gc_stress", *ruby_initial_gc_stress_ptr);
-    SET_WHEN("core", ruby_enable_coredump);
-#if defined _WIN32 && defined _MSC_VER && _MSC_VER >= 1400
-    SET_WHEN("rtc_error", ruby_w32_rtc_error);
+    SET_WHEN("gc_stress", *ruby_initial_gc_stress_ptr, Qtrue);
+    SET_WHEN("core", ruby_enable_coredump, 1);
+#if defined _WIN32 && RUBY_MSVCRT_VERSION >= 80
+    SET_WHEN("rtc_error", ruby_w32_rtc_error, 1);
 #endif
     fprintf(stderr, "unexpected debug option: %.*s\n", len, str);
 }
diff --git a/defs/default_gems b/defs/default_gems
deleted file mode 100644
index e73e383b26..0000000000
--- a/defs/default_gems
+++ /dev/null
@@ -1,5 +0,0 @@
-# gem		base directory		versioning file			[executable files under bin]
-rake		lib/rake		lib/rake/version.rb		[rake]
-rdoc		lib/rdoc		lib/rdoc.rb			[rdoc ri]
-minitest	lib/minitest		lib/minitest/unit.rb
-json		ext/json		ext/json/lib/json/version.rb
diff --git a/defs/gmake.mk b/defs/gmake.mk
new file mode 100644
index 0000000000..439ca9b6f0
--- /dev/null
+++ b/defs/gmake.mk
@@ -0,0 +1,78 @@
+# -*- makefile-gmake -*-
+gnumake = yes
+
+CHECK_TARGETS := exam love check%
+TEST_TARGETS := $(filter check test check% test% btest%,$(MAKECMDGOALS))
+TEST_TARGETS += $(subst check,test-all,$(patsubst check-%,test-%,$(TEST_TARGETS)))
+TEST_TARGETS := $(patsubst test-%,yes-test-%,$(patsubst btest-%,yes-btest-%,$(TEST_TARGETS)))
+TEST_DEPENDS := $(if $(TEST_TARGETS),$(filter all main exts,$(MAKECMDGOALS)))
+TEST_DEPENDS += $(if $(filter $(CHECK_TARGETS),$(MAKECMDGOALS)),main)
+TEST_DEPENDS += $(if $(filter main,$(TEST_DEPENDS)),$(if $(filter all,$(INSTALLDOC)),docs))
+
+ifneq ($(filter -O0 -Od,$(optflags)),)
+override XCFLAGS := $(filter-out -D_FORTIFY_SOURCE=%,$(XCFLAGS))
+endif
+
+ifeq ($(if $(filter all main exts enc trans libencs libenc libtrans \
+		    prog program ruby ruby$(EXEEXT) \
+		    wprogram rubyw rubyw$(EXEEXT) \
+		    miniruby$(EXEEXT) mini,\
+	     $(MAKECMDGOALS)),,$(MAKECMDGOALS)),)
+-include $(SHOWFLAGS)
+endif
+
+ifneq ($(filter universal-%,$(arch)),)
+define archcmd
+%.$(1).S: %.c
+	@$$(ECHO) translating $$< with $(2)
+	$$(Q) $$(CC) $$(CFLAGS_NO_ARCH) $(2) $$(XCFLAGS) $$(CPPFLAGS) $$(COUTFLAG)$$@ -S $$<
+
+%.S: %.$(1).S
+
+%.$(1).i: %.c
+	@$$(ECHO) preprocessing $$< with $(2)
+	$$(Q) $$(CPP) $$(warnflags) $(2) $$(XCFLAGS) $$(CPPFLAGS) $$(COUTFLAG)$$@ -E $$< > $$@
+
+%.i: %.$(1).i
+endef
+
+$(foreach arch,$(filter -arch=%,$(subst -arch ,-arch=,$(ARCH_FLAG))),\
+	$(eval $(call archcmd,$(patsubst -arch=%,%,$(value arch)),$(patsubst -arch=%,-arch %,$(value arch)))))
+endif
+
+ifneq ($(filter $(CHECK_TARGETS) test,$(MAKECMDGOALS)),)
+yes-test-knownbug: $(TEST_DEPENDS) yes-btest-ruby
+yes-btest-ruby: $(TEST_DEPENDS) yes-test-sample
+yes-test-sample: $(TEST_DEPENDS)
+endif
+ifneq ($(filter $(CHECK_TARGETS),$(MAKECMDGOALS)) $(filter test-all,$(TEST_TARGETS)),)
+yes-test-testframework yes-test-almost yes-test-ruby: $(filter-out %test-all %test-ruby check%,$(TEST_TARGETS))
+endif
+ifneq ($(filter $(CHECK_TARGETS),$(MAKECMDGOALS))$(if $(filter test-all,$(MAKECMDGOALS)),$(filter test-knownbug,$(MAKECMDGOALS))),)
+yes-test-testframework yes-test-almost yes-test-ruby: yes-test-knownbug
+yes-test-almost: yes-test-testframework
+endif
+
+$(TEST_TARGETS): $(TEST_DEPENDS)
+
+ifneq ($(if $(filter install,$(MAKECMDGOALS)),$(filter uninstall,$(MAKECMDGOALS))),)
+install-targets := $(filter install uninstall,$(MAKECMDGOALS))
+$(word 1,$(install-targets)): $(word 0,$(install-targets))
+endif
+
+ifneq ($(filter reinstall,$(MAKECMDGOALS)),)
+install-prereq: uninstall
+uninstall sudo-precheck: all $(if $(filter all,$(INSTALLDOC)),docs)
+endif
+
+ifneq ($(filter exam,$(MAKECMDGOALS)),)
+test-rubyspec: check
+yes-test-all no-test-all: test
+endif
+
+ifneq ($(filter love,$(MAKECMDGOALS)),)
+showflags: up
+sudo-precheck: test
+install-prereq: sudo-precheck
+yes-test-all no-test-all: install
+endif
diff --git a/defs/id.def b/defs/id.def
index 91c4110d24..1ff0d9aa3d 100644
--- a/defs/id.def
+++ b/defs/id.def
@@ -1,7 +1,17 @@
 # -*- mode: ruby; coding: us-ascii -*-
 firstline, predefined = __LINE__+1, %[\
+  freeze
+  inspect
   intern
+  object_id
+  const_missing
   method_missing                                        MethodMissing
+  method_added
+  singleton_method_added
+  method_removed
+  singleton_method_removed
+  method_undefined
+  singleton_method_undefined
   length
   size
   gets
@@ -11,13 +21,31 @@ firstline, predefined = __LINE__+1, %[\
   lambda
   send
   __send__
+  __attached__
   initialize
   initialize_copy
   initialize_clone
   initialize_dup
+  to_int
+  to_ary
+  to_str
+  to_sym
+  to_hash
+  to_proc
+  to_io
+  to_a
+  to_s
+  to_i
+  bt
+  bt_locations
+  call
+  mesg
+  exception
+
   _                                                     UScore
   "/*NULL*/"                                            NULL
   empty?
+  eql?
   respond_to?                                           Respond_to
   respond_to_missing?                                   Respond_to_missing
   <IFUNC>
@@ -32,6 +60,44 @@ firstline, predefined = __LINE__+1, %[\
   core#hash_merge_ary
   core#hash_merge_ptr
   core#hash_merge_kwd
+
+  -                                                     debug#created_info
+]
+
+# VM ID         OP      Parser Token
+token_ops = %[\
+  Dot2          ..      DOT2
+  Dot3          ...     DOT3
+  UPlus         +@      UPLUS
+  UMinus        -@      UMINUS
+  Pow           **      POW
+  DSTAR         **
+  Cmp           <=>     CMP
+  PLUS          +
+  MINUS         -
+  MULT          *
+  DIV           /
+  MOD           %
+  LTLT          <<      LSHFT
+  GTGT          >>      RSHFT
+  LT            <
+  LE            <=      LEQ
+  GT            >
+  GE            >=      GEQ
+  Eq            ==      EQ
+  Eqq           ===     EQQ
+  Neq           !=      NEQ
+  Not           !
+  Backquote     `
+  EqTilde       =~      MATCH
+  NeqTilde      !~      NMATCH
+  AREF          []
+  ASET          []=
+  COLON2        ::
+  COLON3        ::
+  ANDOP         &&
+  OROP          ||
+  ANDDOT        &.
 ]
 
 class KeywordError < RuntimeError
@@ -47,6 +113,8 @@ instance_ids = []
 global_ids = []
 const_ids = []
 class_ids = []
+attrset_ids = []
+token_op_ids = []
 names = {}
 predefined.split(/^/).each_with_index do |line, num|
   next if /^#/ =~ line
@@ -63,6 +131,10 @@ predefined.split(/^/).each_with_index do |line, num|
     token.sub!(/\A@/, "_I_")
     token.gsub!(/\W+/, "")
   end
+  if name == '-'
+    preserved_ids << token
+    next
+  end
   if prev = names[name]
     KeywordError.raise("#{name} is already registered at line #{prev+firstline}", firstline+num)
   end
@@ -76,18 +148,27 @@ predefined.split(/^/).each_with_index do |line, num|
   when /\A\$(?:\d+|(?!\d)\w+)\z/; global_ids
   when /\A@@(?!\d)\w+\z/; class_ids
   when /\A@(?!\d)\w+\z/; instance_ids
-  when /\A((?!\d)\w+)=\z/
-    KeywordError.raise("use ID2ATTRSET(#{$1}) instead of ATTRSET #{name}", firstline+num)
+  when /\A((?!\d)\w+)=\z/; attrset_ids
   else preserved_ids
   end << token
   predefined_ids[token] = name
 end
+token_ops.split(/^/).each do |line|
+  next if /^#/ =~ line
+  line.sub!(/\s+#.*/, '')
+  id, op, token = line.split
+  next unless id and op
+  token ||= (id unless /\A\W\z/ =~ op)
+  token_op_ids << [id, op, token]
+end
 {
   "LOCAL" => local_ids,
   "INSTANCE" => instance_ids,
   "GLOBAL" => global_ids,
   "CONST" => const_ids,
   "CLASS" => class_ids,
+  "ATTRSET" => attrset_ids,
   :preserved => preserved_ids,
   :predefined => predefined_ids,
+  :token_op => token_op_ids,
 }
diff --git a/defs/keywords b/defs/keywords
index 1b5719aa85..e0d931cd1f 100644
--- a/defs/keywords
+++ b/defs/keywords
@@ -1,5 +1,5 @@
 %{
-struct kwtable {const char *name; int id[2]; enum lex_state_e state;};
+struct kwtable {int name, id[2], state;};
 const struct kwtable *rb_reserved_word(const char *, unsigned int);
 #ifndef RIPPER
 static const struct kwtable *reserved_word(const char *, unsigned int);
@@ -13,7 +13,7 @@ __LINE__, {keyword__LINE__, keyword__LINE__}, EXPR_END
 __FILE__, {keyword__FILE__, keyword__FILE__}, EXPR_END
 BEGIN, {keyword_BEGIN, keyword_BEGIN}, EXPR_END
 END, {keyword_END, keyword_END}, EXPR_END
-alias, {keyword_alias, keyword_alias}, EXPR_FNAME
+alias, {keyword_alias, keyword_alias}, EXPR_FNAME|EXPR_FITEM
 and, {keyword_and, keyword_and}, EXPR_VALUE
 begin, {keyword_begin, keyword_begin}, EXPR_BEG
 break, {keyword_break, keyword_break}, EXPR_MID
@@ -43,7 +43,7 @@ self, {keyword_self, keyword_self}, EXPR_END
 super, {keyword_super, keyword_super}, EXPR_ARG
 then, {keyword_then, keyword_then}, EXPR_BEG
 true, {keyword_true, keyword_true}, EXPR_END
-undef, {keyword_undef, keyword_undef}, EXPR_FNAME
+undef, {keyword_undef, keyword_undef}, EXPR_FNAME|EXPR_FITEM
 unless, {keyword_unless, modifier_unless}, EXPR_VALUE
 until, {keyword_until, modifier_until}, EXPR_VALUE
 when, {keyword_when, keyword_when}, EXPR_VALUE
diff --git a/defs/known_errors.def b/defs/known_errors.def
index 3cebe90a8e..b9c490d3a2 100644
--- a/defs/known_errors.def
+++ b/defs/known_errors.def
@@ -143,3 +143,6 @@ EPROGMISMATCH
 EPROGUNAVAIL
 ERPCMISMATCH
 EIPSEC
+EHWPOISON
+ECAPMODE
+ENOTCAPABLE
diff --git a/defs/lex.c.src b/defs/lex.c.src
index 1b5719aa85..e0d931cd1f 100644
--- a/defs/lex.c.src
+++ b/defs/lex.c.src
@@ -1,5 +1,5 @@
 %{
-struct kwtable {const char *name; int id[2]; enum lex_state_e state;};
+struct kwtable {int name, id[2], state;};
 const struct kwtable *rb_reserved_word(const char *, unsigned int);
 #ifndef RIPPER
 static const struct kwtable *reserved_word(const char *, unsigned int);
@@ -13,7 +13,7 @@ __LINE__, {keyword__LINE__, keyword__LINE__}, EXPR_END
 __FILE__, {keyword__FILE__, keyword__FILE__}, EXPR_END
 BEGIN, {keyword_BEGIN, keyword_BEGIN}, EXPR_END
 END, {keyword_END, keyword_END}, EXPR_END
-alias, {keyword_alias, keyword_alias}, EXPR_FNAME
+alias, {keyword_alias, keyword_alias}, EXPR_FNAME|EXPR_FITEM
 and, {keyword_and, keyword_and}, EXPR_VALUE
 begin, {keyword_begin, keyword_begin}, EXPR_BEG
 break, {keyword_break, keyword_break}, EXPR_MID
@@ -43,7 +43,7 @@ self, {keyword_self, keyword_self}, EXPR_END
 super, {keyword_super, keyword_super}, EXPR_ARG
 then, {keyword_then, keyword_then}, EXPR_BEG
 true, {keyword_true, keyword_true}, EXPR_END
-undef, {keyword_undef, keyword_undef}, EXPR_FNAME
+undef, {keyword_undef, keyword_undef}, EXPR_FNAME|EXPR_FITEM
 unless, {keyword_unless, modifier_unless}, EXPR_VALUE
 until, {keyword_until, modifier_until}, EXPR_VALUE
 when, {keyword_when, keyword_when}, EXPR_VALUE
diff --git a/defs/opt_operand.def b/defs/opt_operand.def
index ab7103a421..887e3da49a 100644
--- a/defs/opt_operand.def
+++ b/defs/opt_operand.def
@@ -1,5 +1,5 @@
 #
-# configration file for operand union optimization
+# configuration file for operand union optimization
 #
 # format:
 #   [insn name] op1, op2 ...
diff --git a/dir.c b/dir.c
index 17192141e7..7376d5df1c 100644
--- a/dir.c
+++ b/dir.c
@@ -11,9 +11,8 @@
 
 **********************************************************************/
 
-#include "ruby/ruby.h"
-#include "ruby/encoding.h"
 #include "internal.h"
+#include "encindex.h"
 
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -63,10 +62,6 @@ char *strchr(char*,char);
 
 #include "ruby/util.h"
 
-#if !defined HAVE_LSTAT && !defined lstat
-#define lstat stat
-#endif
-
 /* define system APIs */
 #ifdef _WIN32
 #undef chdir
@@ -77,9 +72,101 @@ char *strchr(char*,char);
 #define rmdir(p) rb_w32_urmdir(p)
 #undef opendir
 #define opendir(p) rb_w32_uopendir(p)
+#define IS_WIN32 1
+#else
+#define IS_WIN32 0
 #endif
 
-#define rb_sys_fail_path(path) rb_sys_fail_str(path)
+#ifdef HAVE_SYS_ATTR_H
+#include <sys/attr.h>
+#endif
+
+#ifdef HAVE_GETATTRLIST
+# define USE_NAME_ON_FS 1
+# define RUP32(size) ((size)+3/4)
+# define SIZEUP32(type) RUP32(sizeof(type))
+#elif defined _WIN32
+# define USE_NAME_ON_FS 1
+#elif defined DOSISH
+# define USE_NAME_ON_FS 2	/* by fnmatch */
+#else
+# define USE_NAME_ON_FS 0
+#endif
+
+#ifdef __APPLE__
+# define NORMALIZE_UTF8PATH 1
+#else
+# define NORMALIZE_UTF8PATH 0
+#endif
+
+#if NORMALIZE_UTF8PATH
+#include <sys/param.h>
+#include <sys/mount.h>
+#include <sys/vnode.h>
+
+# if defined HAVE_FGETATTRLIST || !defined HAVE_GETATTRLIST
+#   define need_normalization(dirp, path) need_normalization(dirp)
+# else
+#   define need_normalization(dirp, path) need_normalization(path)
+# endif
+static inline int
+need_normalization(DIR *dirp, const char *path)
+{
+# if defined HAVE_FGETATTRLIST || defined HAVE_GETATTRLIST
+    u_int32_t attrbuf[SIZEUP32(fsobj_tag_t)];
+    struct attrlist al = {ATTR_BIT_MAP_COUNT, 0, ATTR_CMN_OBJTAG,};
+#   if defined HAVE_FGETATTRLIST
+    int ret = fgetattrlist(dirfd(dirp), &al, attrbuf, sizeof(attrbuf), 0);
+#   else
+    int ret = getattrlist(path, &al, attrbuf, sizeof(attrbuf), 0);
+#   endif
+    if (!ret) {
+	const fsobj_tag_t *tag = (void *)(attrbuf+1);
+	switch (*tag) {
+	  case VT_HFS:
+	  case VT_CIFS:
+	    return TRUE;
+	}
+    }
+# endif
+    return FALSE;
+}
+
+static inline int
+has_nonascii(const char *ptr, size_t len)
+{
+    while (len > 0) {
+	if (!ISASCII(*ptr)) return 1;
+	ptr++;
+	--len;
+    }
+    return 0;
+}
+
+# define IF_NORMALIZE_UTF8PATH(something) something
+#else
+# define IF_NORMALIZE_UTF8PATH(something) /* nothing */
+#endif
+
+#ifndef IFTODT
+# define IFTODT(m)	(((m) & S_IFMT) / ((~S_IFMT & S_IFMT-1) + 1))
+#endif
+
+typedef enum {
+#ifdef DT_UNKNOWN
+    path_exist     = DT_UNKNOWN,
+    path_directory = DT_DIR,
+    path_regular   = DT_REG,
+    path_symlink   = DT_LNK,
+#else
+    path_exist,
+    path_directory = IFTODT(S_IFDIR),
+    path_regular   = IFTODT(S_IFREG),
+    path_symlink   = IFTODT(S_IFLNK),
+#endif
+    path_noent = -1,
+    path_unknown = -2
+} rb_pathtype_t;
 
 #define FNM_NOESCAPE	0x01
 #define FNM_PATHNAME	0x02
@@ -91,6 +178,11 @@ char *strchr(char*,char);
 #else
 #define FNM_SYSCASE	0
 #endif
+#if _WIN32
+#define FNM_SHORTNAME	0x20
+#else
+#define FNM_SHORTNAME	0
+#endif
 
 #define FNM_NOMATCH	1
 #define FNM_ERROR	2
@@ -167,7 +259,7 @@ bracket(
     return ok == not ? NULL : (char *)p + 1;
 }
 
-/* If FNM_PATHNAME is set, only path element will be matched. (upto '/' or '\0')
+/* If FNM_PATHNAME is set, only path element will be matched. (up to '/' or '\0')
    Otherwise, entire string will be matched.
    End marker itself won't be compared.
    And if function succeeds, *pcur reaches end marker.
@@ -346,12 +438,13 @@ dir_free(void *ptr)
 static size_t
 dir_memsize(const void *ptr)
 {
-    return ptr ? sizeof(struct dir_data) : 0;
+    return sizeof(struct dir_data);
 }
 
 static const rb_data_type_t dir_data_type = {
     "dir",
     {dir_mark, dir_free, dir_memsize,},
+    0, 0, RUBY_TYPED_FREE_IMMEDIATELY
 };
 
 static VALUE dir_close(VALUE);
@@ -381,8 +474,12 @@ dir_s_alloc(VALUE klass)
 /*
  *  call-seq:
  *     Dir.new( string ) -> aDir
+ *     Dir.new( string, encoding: enc ) -> aDir
  *
  *  Returns a new directory object for the named directory.
+ *
+ *  The optional <i>enc</i> argument specifies the encoding of the directory.
+ *  If not specified, the filesystem encoding is used.
  */
 static VALUE
 dir_initialize(int argc, VALUE *argv, VALUE dir)
@@ -390,18 +487,21 @@ dir_initialize(int argc, VALUE *argv, VALUE dir)
     struct dir_data *dp;
     rb_encoding  *fsenc;
     VALUE dirname, opt, orig;
-    static VALUE sym_enc;
+    static ID keyword_ids[1];
+    const char *path;
 
-    if (!sym_enc) {
-	sym_enc = ID2SYM(rb_intern("encoding"));
+    if (!keyword_ids[0]) {
+	keyword_ids[0] = rb_id_encoding();
     }
+
     fsenc = rb_filesystem_encoding();
 
     rb_scan_args(argc, argv, "1:", &dirname, &opt);
 
     if (!NIL_P(opt)) {
-	VALUE enc = rb_hash_aref(opt, sym_enc);
-	if (!NIL_P(enc)) {
+	VALUE enc;
+	rb_get_kwargs(opt, keyword_ids, 0, 1, &enc);
+	if (enc != Qundef && !NIL_P(enc)) {
 	    fsenc = rb_to_encoding(enc);
 	}
     }
@@ -416,13 +516,23 @@ dir_initialize(int argc, VALUE *argv, VALUE dir)
     dp->dir = NULL;
     dp->path = Qnil;
     dp->enc = fsenc;
-    dp->dir = opendir(RSTRING_PTR(dirname));
+    path = RSTRING_PTR(dirname);
+    dp->dir = opendir(path);
     if (dp->dir == NULL) {
-	if (errno == EMFILE || errno == ENFILE) {
-	    rb_gc();
-	    dp->dir = opendir(RSTRING_PTR(dirname));
+	if (rb_gc_for_fd(errno)) {
+	    dp->dir = opendir(path);
+	}
+#ifdef HAVE_GETATTRLIST
+	else if (errno == EIO) {
+	    u_int32_t attrbuf[1];
+	    struct attrlist al = {ATTR_BIT_MAP_COUNT, 0};
+	    if (getattrlist(path, &al, attrbuf, sizeof(attrbuf), FSOPT_NOFOLLOW) == 0) {
+		dp->dir = opendir(path);
+	    }
 	}
+#endif
 	if (dp->dir == NULL) {
+	    RB_GC_GUARD(dirname);
 	    rb_sys_fail_path(orig);
 	}
     }
@@ -434,7 +544,12 @@ dir_initialize(int argc, VALUE *argv, VALUE dir)
 /*
  *  call-seq:
  *     Dir.open( string ) -> aDir
+ *     Dir.open( string, encoding: enc ) -> aDir
  *     Dir.open( string ) {| aDir | block } -> anObject
+ *     Dir.open( string, encoding: enc ) {| aDir | block } -> anObject
+ *
+ *  The optional <i>enc</i> argument specifies the encoding of the directory.
+ *  If not specified, the filesystem encoding is used.
  *
  *  With no block, <code>open</code> is a synonym for
  *  <code>Dir::new</code>. If a block is present, it is passed
@@ -463,13 +578,16 @@ dir_closed(void)
 }
 
 static struct dir_data *
-dir_check(VALUE dir)
+dir_get(VALUE dir)
 {
-    struct dir_data *dirp;
-    if (!OBJ_UNTRUSTED(dir) && rb_safe_level() >= 4)
-	rb_raise(rb_eSecurityError, "Insecure: operation on trusted Dir");
     rb_check_frozen(dir);
-    dirp = rb_check_typeddata(dir, &dir_data_type);
+    return rb_check_typeddata(dir, &dir_data_type);
+}
+
+static struct dir_data *
+dir_check(VALUE dir)
+{
+    struct dir_data *dirp = dir_get(dir);
     if (!dirp->dir) dir_closed();
     return dirp;
 }
@@ -497,12 +615,57 @@ dir_inspect(VALUE dir)
 	rb_str_cat2(str, ">");
 	return str;
     }
-    return rb_funcall(dir, rb_intern("to_s"), 0, 0);
+    return rb_funcallv(dir, rb_intern("to_s"), 0, 0);
+}
+
+/* Workaround for Solaris 10 that does not have dirfd.
+   Note: Solaris 11 (POSIX.1-2008 compliant) has dirfd(3C).
+ */
+#if defined(__sun) && !defined(HAVE_DIRFD)
+# if defined(HAVE_DIR_D_FD)
+#  define dirfd(x) ((x)->d_fd)
+#  define HAVE_DIRFD 1
+# elif defined(HAVE_DIR_DD_FD)
+#  define dirfd(x) ((x)->dd_fd)
+#  define HAVE_DIRFD 1
+# endif
+#endif
+
+#ifdef HAVE_DIRFD
+/*
+ *  call-seq:
+ *     dir.fileno -> integer
+ *
+ *  Returns the file descriptor used in <em>dir</em>.
+ *
+ *     d = Dir.new("..")
+ *     d.fileno   #=> 8
+ *
+ *  This method uses dirfd() function defined by POSIX 2008.
+ *  NotImplementedError is raised on other platforms, such as Windows,
+ *  which doesn't provide the function.
+ *
+ */
+static VALUE
+dir_fileno(VALUE dir)
+{
+    struct dir_data *dirp;
+    int fd;
+
+    GetDIR(dir, dirp);
+    fd = dirfd(dirp->dir);
+    if (fd == -1)
+	rb_sys_fail("dirfd");
+    return INT2NUM(fd);
 }
+#else
+#define dir_fileno rb_f_notimplement
+#endif
 
 /*
  *  call-seq:
  *     dir.path -> string or nil
+ *     dir.to_path -> string or nil
  *
  *  Returns the path parameter passed to <em>dir</em>'s constructor.
  *
@@ -519,50 +682,22 @@ dir_path(VALUE dir)
     return rb_str_dup(dirp->path);
 }
 
-#if defined HAVE_READDIR_R
-# define READDIR(dir, enc, entry, dp) (readdir_r((dir), (entry), &(dp)) == 0 && (dp) != 0)
-#elif defined _WIN32
-# define READDIR(dir, enc, entry, dp) (((dp) = rb_w32_readdir((dir), (enc))) != 0)
-#else
-# define READDIR(dir, enc, entry, dp) (((dp) = readdir(dir)) != 0)
-#endif
-#if defined HAVE_READDIR_R
-# define IF_HAVE_READDIR_R(something) something
-#else
-# define IF_HAVE_READDIR_R(something) /* nothing */
-#endif
-
-#if defined SIZEOF_STRUCT_DIRENT_TOO_SMALL
-# include <limits.h>
-# define NAME_MAX_FOR_STRUCT_DIRENT 255
-# if defined NAME_MAX
-#  if NAME_MAX_FOR_STRUCT_DIRENT < NAME_MAX
-#   undef  NAME_MAX_FOR_STRUCT_DIRENT
-#   define NAME_MAX_FOR_STRUCT_DIRENT NAME_MAX
-#  endif
-# endif
-# if defined _POSIX_NAME_MAX
-#  if NAME_MAX_FOR_STRUCT_DIRENT < _POSIX_NAME_MAX
-#   undef  NAME_MAX_FOR_STRUCT_DIRENT
-#   define NAME_MAX_FOR_STRUCT_DIRENT _POSIX_NAME_MAX
-#  endif
-# endif
-# if defined _XOPEN_NAME_MAX
-#  if NAME_MAX_FOR_STRUCT_DIRENT < _XOPEN_NAME_MAX
-#   undef  NAME_MAX_FOR_STRUCT_DIRENT
-#   define NAME_MAX_FOR_STRUCT_DIRENT _XOPEN_NAME_MAX
-#  endif
-# endif
-# define DEFINE_STRUCT_DIRENT \
-  union { \
-    struct dirent dirent; \
-    char dummy[offsetof(struct dirent, d_name) + \
-	       NAME_MAX_FOR_STRUCT_DIRENT + 1]; \
-  }
-# define STRUCT_DIRENT(entry) ((entry).dirent)
+#if defined _WIN32
+static int
+fundamental_encoding_p(rb_encoding *enc)
+{
+    switch (rb_enc_to_index(enc)) {
+      case ENCINDEX_ASCII:
+      case ENCINDEX_US_ASCII:
+      case ENCINDEX_UTF_8:
+	return TRUE;
+      default:
+	return FALSE;
+    }
+}
+# define READDIR(dir, enc) rb_w32_readdir((dir), (enc))
 #else
-# define DEFINE_STRUCT_DIRENT struct dirent
-# define STRUCT_DIRENT(entry) (entry)
+# define READDIR(dir, enc) readdir((dir))
 #endif
 
 /*
@@ -582,11 +717,10 @@ dir_read(VALUE dir)
 {
     struct dir_data *dirp;
     struct dirent *dp;
-    IF_HAVE_READDIR_R(DEFINE_STRUCT_DIRENT entry);
 
     GetDIR(dir, dirp);
     errno = 0;
-    if (READDIR(dirp->dir, dirp->enc, &STRUCT_DIRENT(entry), dp)) {
+    if ((dp = READDIR(dirp->dir, dirp->enc)) != NULL) {
 	return rb_external_str_new_with_enc(dp->d_name, NAMLEN(dp), dirp->enc);
     }
     else {
@@ -620,13 +754,25 @@ dir_each(VALUE dir)
 {
     struct dir_data *dirp;
     struct dirent *dp;
-    IF_HAVE_READDIR_R(DEFINE_STRUCT_DIRENT entry);
+    IF_NORMALIZE_UTF8PATH(int norm_p);
 
     RETURN_ENUMERATOR(dir, 0, 0);
     GetDIR(dir, dirp);
     rewinddir(dirp->dir);
-    while (READDIR(dirp->dir, dirp->enc, &STRUCT_DIRENT(entry), dp)) {
-	rb_yield(rb_external_str_new_with_enc(dp->d_name, NAMLEN(dp), dirp->enc));
+    IF_NORMALIZE_UTF8PATH(norm_p = need_normalization(dirp->dir, RSTRING_PTR(dirp->path)));
+    while ((dp = READDIR(dirp->dir, dirp->enc)) != NULL) {
+	const char *name = dp->d_name;
+	size_t namlen = NAMLEN(dp);
+	VALUE path;
+#if NORMALIZE_UTF8PATH
+	if (norm_p && has_nonascii(name, namlen) &&
+	    !NIL_P(path = rb_str_normalize_ospath(name, namlen))) {
+	    path = rb_external_str_with_enc(path, dirp->enc);
+	}
+	else
+#endif
+	path = rb_external_str_new_with_enc(name, namlen, dirp->enc);
+	rb_yield(path);
 	if (dirp->dir == NULL) dir_closed();
     }
     return dir;
@@ -692,7 +838,7 @@ dir_seek(VALUE dir, VALUE pos)
 #ifdef HAVE_SEEKDIR
 /*
  *  call-seq:
- *     dir.pos( integer ) -> integer
+ *     dir.pos = integer  -> integer
  *
  *  Synonym for <code>Dir#seek</code>, but returns the position
  *  parameter.
@@ -730,9 +876,6 @@ dir_rewind(VALUE dir)
 {
     struct dir_data *dirp;
 
-    if (rb_safe_level() >= 4 && !OBJ_UNTRUSTED(dir)) {
-	rb_raise(rb_eSecurityError, "Insecure: can't close");
-    }
     GetDIR(dir, dirp);
     rewinddir(dirp->dir);
     return dir;
@@ -742,8 +885,8 @@ dir_rewind(VALUE dir)
  *  call-seq:
  *     dir.close -> nil
  *
- *  Closes the directory stream. Any further attempts to access
- *  <em>dir</em> will raise an <code>IOError</code>.
+ *  Closes the directory stream.
+ *  Calling this method on closed Dir object is ignored since Ruby 2.3.
  *
  *     d = Dir.new("testdir")
  *     d.close   #=> nil
@@ -753,7 +896,8 @@ dir_close(VALUE dir)
 {
     struct dir_data *dirp;
 
-    GetDIR(dir, dirp);
+    dirp = dir_get(dir);
+    if (!dirp->dir) return Qnil;
     closedir(dirp->dir);
     dirp->dir = NULL;
 
@@ -842,7 +986,6 @@ dir_s_chdir(int argc, VALUE *argv, VALUE obj)
 {
     VALUE path = Qnil;
 
-    rb_secure(2);
     if (rb_scan_args(argc, argv, "01", &path) == 1) {
 	FilePathValue(path);
 	path = rb_str_encode_ospath(path);
@@ -879,11 +1022,17 @@ rb_dir_getwd(void)
 {
     char *path;
     VALUE cwd;
+    int fsenc = rb_enc_to_index(rb_filesystem_encoding());
 
-    rb_secure(4);
+    if (fsenc == ENCINDEX_US_ASCII) fsenc = ENCINDEX_ASCII;
     path = my_getcwd();
+#ifdef __APPLE__
+    cwd = rb_str_normalize_ospath(path, strlen(path));
+    OBJ_TAINT(cwd);
+#else
     cwd = rb_tainted_str_new2(path);
-    rb_enc_associate(cwd, rb_filesystem_encoding());
+#endif
+    rb_enc_associate_index(cwd, fsenc);
 
     xfree(path);
     return cwd;
@@ -899,6 +1048,7 @@ rb_dir_getwd(void)
  *
  *     Dir.chdir("/tmp")   #=> 0
  *     Dir.getwd           #=> "/tmp"
+ *     Dir.pwd             #=> "/tmp"
  */
 static VALUE
 dir_s_getwd(VALUE dir)
@@ -906,15 +1056,14 @@ dir_s_getwd(VALUE dir)
     return rb_dir_getwd();
 }
 
-static void
-check_dirname(volatile VALUE *dir)
+static VALUE
+check_dirname(VALUE dir)
 {
-    VALUE d = *dir;
+    VALUE d = dir;
     char *path, *pend;
     long len;
     rb_encoding *enc;
 
-    rb_secure(2);
     FilePathValue(d);
     enc = rb_enc_get(d);
     RSTRING_GETMEM(d, path, len);
@@ -922,8 +1071,9 @@ check_dirname(volatile VALUE *dir)
     pend = rb_enc_path_end(rb_enc_path_skip_prefix(path, pend, enc), pend, enc);
     if (pend - path < len) {
 	d = rb_str_subseq(d, 0, pend - path);
+	StringValueCStr(d);
     }
-    *dir = rb_str_encode_ospath(d);
+    return rb_str_encode_ospath(d);
 }
 
 #if defined(HAVE_CHROOT)
@@ -939,7 +1089,7 @@ check_dirname(volatile VALUE *dir)
 static VALUE
 dir_s_chroot(VALUE dir, VALUE path)
 {
-    check_dirname(&path);
+    path = check_dirname(path);
     if (chroot(RSTRING_PTR(path)) == -1)
 	rb_sys_fail_path(path);
 
@@ -977,7 +1127,7 @@ dir_s_mkdir(int argc, VALUE *argv, VALUE obj)
 	mode = 0777;
     }
 
-    check_dirname(&path);
+    path = check_dirname(path);
     if (mkdir(RSTRING_PTR(path), mode) == -1)
 	rb_sys_fail_path(path);
 
@@ -996,26 +1146,56 @@ dir_s_mkdir(int argc, VALUE *argv, VALUE obj)
 static VALUE
 dir_s_rmdir(VALUE obj, VALUE dir)
 {
-    check_dirname(&dir);
+    dir = check_dirname(dir);
     if (rmdir(RSTRING_PTR(dir)) < 0)
 	rb_sys_fail_path(dir);
 
     return INT2FIX(0);
 }
 
+struct warning_args {
+#ifdef RUBY_FUNCTION_NAME_STRING
+    const char *func;
+#endif
+    const char *mesg;
+    rb_encoding *enc;
+};
+
+#ifndef RUBY_FUNCTION_NAME_STRING
+#define sys_enc_warning_in(func, mesg, enc) sys_enc_warning(mesg, enc)
+#endif
+
 static VALUE
 sys_warning_1(VALUE mesg)
 {
-    rb_sys_warning("%s:%s", strerror(errno), (const char *)mesg);
+    const struct warning_args *arg = (struct warning_args *)mesg;
+#ifdef RUBY_FUNCTION_NAME_STRING
+    rb_sys_enc_warning(arg->enc, "%s: %s", arg->func, arg->mesg);
+#else
+    rb_sys_enc_warning(arg->enc, "%s", arg->mesg);
+#endif
     return Qnil;
 }
 
+static void
+sys_enc_warning_in(const char *func, const char *mesg, rb_encoding *enc)
+{
+    struct warning_args arg;
+#ifdef RUBY_FUNCTION_NAME_STRING
+    arg.func = func;
+#endif
+    arg.mesg = mesg;
+    arg.enc = enc;
+    rb_protect(sys_warning_1, (VALUE)&arg, 0);
+}
+
 #define GLOB_VERBOSE	(1U << (sizeof(int) * CHAR_BIT - 1))
-#define sys_warning(val) \
-    (void)((flags & GLOB_VERBOSE) && rb_protect(sys_warning_1, (VALUE)(val), 0))
+#define sys_warning(val, enc) \
+    ((flags & GLOB_VERBOSE) ? sys_enc_warning_in(RUBY_FUNCTION_NAME_STRING, (val), (enc)) :(void)0)
 
 #define GLOB_ALLOC(type) ((type *)malloc(sizeof(type)))
 #define GLOB_ALLOC_N(type, n) ((type *)malloc(sizeof(type) * (n)))
+#define GLOB_REALLOC(ptr, size) realloc((ptr), (size))
 #define GLOB_FREE(ptr) free(ptr)
 #define GLOB_JUMP_TAG(status) (((status) == -1) ? rb_memerror() : rb_jump_tag(status))
 
@@ -1025,37 +1205,46 @@ sys_warning_1(VALUE mesg)
  */
 #define to_be_ignored(e) ((e) == ENOENT || (e) == ENOTDIR)
 
+#ifdef _WIN32
+#define STAT(p, s)	rb_w32_ustati64((p), (s))
+#undef lstat
+#define lstat(p, s)	rb_w32_ulstati64((p), (s))
+#else
+#define STAT(p, s)	stat((p), (s))
+#endif
+
 /* System call with warning */
 static int
-do_stat(const char *path, struct stat *pst, int flags)
-
+do_stat(const char *path, struct stat *pst, int flags, rb_encoding *enc)
 {
-    int ret = stat(path, pst);
+    int ret = STAT(path, pst);
     if (ret < 0 && !to_be_ignored(errno))
-	sys_warning(path);
+	sys_warning(path, enc);
 
     return ret;
 }
 
+#if defined HAVE_LSTAT || defined lstat
 static int
-do_lstat(const char *path, struct stat *pst, int flags)
+do_lstat(const char *path, struct stat *pst, int flags, rb_encoding *enc)
 {
     int ret = lstat(path, pst);
     if (ret < 0 && !to_be_ignored(errno))
-	sys_warning(path);
+	sys_warning(path, enc);
 
     return ret;
 }
+#else
+#define do_lstat do_stat
+#endif
 
 static DIR *
 do_opendir(const char *path, int flags, rb_encoding *enc)
 {
     DIR *dirp;
 #ifdef _WIN32
-    volatile VALUE tmp;
-    if (enc != rb_usascii_encoding() &&
-	enc != rb_ascii8bit_encoding() &&
-	enc != rb_utf8_encoding()) {
+    VALUE tmp = 0;
+    if (!fundamental_encoding_p(enc)) {
 	tmp = rb_enc_str_new(path, strlen(path), enc);
 	tmp = rb_str_encode_ospath(tmp);
 	path = RSTRING_PTR(tmp);
@@ -1063,17 +1252,23 @@ do_opendir(const char *path, int flags, rb_encoding *enc)
 #endif
     dirp = opendir(path);
     if (dirp == NULL && !to_be_ignored(errno))
-	sys_warning(path);
+	sys_warning(path, enc);
+#ifdef _WIN32
+    if (tmp) rb_str_resize(tmp, 0); /* GC guard */
+#endif
 
     return dirp;
 }
 
+/* Globing pattern */
+enum glob_pattern_type { PLAIN, ALPHA, MAGICAL, RECURSIVE, MATCH_ALL, MATCH_DIR };
+
 /* Return nonzero if S has any special globbing chars in it.  */
-static int
+static enum glob_pattern_type
 has_magic(const char *p, const char *pend, int flags, rb_encoding *enc)
 {
     const int escape = !(flags & FNM_NOESCAPE);
-    const int nocase = flags & FNM_CASEFOLD;
+    int hasalpha = 0;
 
     register char c;
 
@@ -1082,22 +1277,32 @@ has_magic(const char *p, const char *pend, int flags, rb_encoding *enc)
 	  case '*':
 	  case '?':
 	  case '[':
-	    return 1;
+	    return MAGICAL;
 
 	  case '\\':
-	    if (escape && !(c = *p++))
-		return 0;
-	    continue;
+	    if (escape && p++ >= pend)
+		continue;
+	    break;
+
+#ifdef _WIN32
+	  case '.':
+	    break;
 
+	  case '~':
+	    hasalpha = 1;
+	    break;
+#endif
 	  default:
-	    if (!FNM_SYSCASE && ISALPHA(c) && nocase)
-		return 1;
+	    if (IS_WIN32 || ISALPHA(c)) {
+		hasalpha = 1;
+	    }
+	    break;
 	}
 
 	p = Next(p-1, pend, enc);
     }
 
-    return 0;
+    return hasalpha ? ALPHA : PLAIN;
 }
 
 /* Find separator in globbing pattern. */
@@ -1161,9 +1366,6 @@ remove_backslashes(char *p, register const char *pend, rb_encoding *enc)
     return p;
 }
 
-/* Globing pattern */
-enum glob_pattern_type { PLAIN, MAGICAL, RECURSIVE, MATCH_ALL, MATCH_DIR };
-
 struct glob_pattern {
     char *str;
     enum glob_pattern_type type;
@@ -1182,7 +1384,7 @@ glob_make_pattern(const char *p, const char *e, int flags, rb_encoding *enc)
     while (p < e && *p) {
 	tmp = GLOB_ALLOC(struct glob_pattern);
 	if (!tmp) goto error;
-	if (p[0] == '*' && p[1] == '*' && p[2] == '/') {
+	if (p + 2 < e && p[0] == '*' && p[1] == '*' && p[2] == '/') {
 	    /* fold continuous RECURSIVEs (needed in glob_helper) */
 	    do { p += 3; while (*p == '/') p++; } while (p[0] == '*' && p[1] == '*' && p[2] == '/');
 	    tmp->type = RECURSIVE;
@@ -1192,12 +1394,13 @@ glob_make_pattern(const char *p, const char *e, int flags, rb_encoding *enc)
 	}
 	else {
 	    const char *m = find_dirsep(p, e, flags, enc);
-	    int magic = has_magic(p, m, flags, enc);
+	    const enum glob_pattern_type magic = has_magic(p, m, flags, enc);
+	    const enum glob_pattern_type non_magic = (USE_NAME_ON_FS || FNM_SYSCASE) ? PLAIN : ALPHA;
 	    char *buf;
 
-	    if (!magic && !recursive && *m) {
+	    if (!(FNM_SYSCASE || magic > non_magic) && !recursive && *m) {
 		const char *m2;
-		while (!has_magic(m+1, m2 = find_dirsep(m+1, e, flags, enc), flags, enc) &&
+		while (has_magic(m+1, m2 = find_dirsep(m+1, e, flags, enc), flags, enc) <= non_magic &&
 		       *m2) {
 		    m = m2;
 		}
@@ -1209,7 +1412,7 @@ glob_make_pattern(const char *p, const char *e, int flags, rb_encoding *enc)
 	    }
 	    memcpy(buf, p, m-p);
 	    buf[m-p] = '\0';
-	    tmp->type = magic ? MAGICAL : PLAIN;
+	    tmp->type = magic > MAGICAL ? MAGICAL : magic > non_magic ? magic : PLAIN;
 	    tmp->str = buf;
 	    if (*m) {
 		dirsep = 1;
@@ -1252,9 +1455,8 @@ glob_free_pattern(struct glob_pattern *list)
 }
 
 static char *
-join_path(const char *path, int dirsep, const char *name, size_t namlen)
+join_path(const char *path, long len, int dirsep, const char *name, size_t namlen)
 {
-    long len = strlen(path);
     char *buf = GLOB_ALLOC_N(char, len+namlen+(dirsep?1:0)+1);
 
     if (!buf) return 0;
@@ -1267,7 +1469,165 @@ join_path(const char *path, int dirsep, const char *name, size_t namlen)
     return buf;
 }
 
-enum answer {UNKNOWN = -1, NO, YES};
+#ifdef HAVE_GETATTRLIST
+# if defined HAVE_FGETATTRLIST
+#   define is_case_sensitive(dirp, path) is_case_sensitive(dirp)
+# else
+#   define is_case_sensitive(dirp, path) is_case_sensitive(path)
+# endif
+static int
+is_case_sensitive(DIR *dirp, const char *path)
+{
+    struct {
+	u_int32_t length;
+	vol_capabilities_attr_t cap[1];
+    } __attribute__((aligned(4), packed)) attrbuf[1];
+    struct attrlist al = {ATTR_BIT_MAP_COUNT, 0, 0, ATTR_VOL_INFO|ATTR_VOL_CAPABILITIES};
+    const vol_capabilities_attr_t *const cap = attrbuf[0].cap;
+    const int idx = VOL_CAPABILITIES_FORMAT;
+    const uint32_t mask = VOL_CAP_FMT_CASE_SENSITIVE;
+
+#   if defined HAVE_FGETATTRLIST
+    if (fgetattrlist(dirfd(dirp), &al, attrbuf, sizeof(attrbuf), FSOPT_NOFOLLOW))
+	return -1;
+#   else
+    if (getattrlist(path, &al, attrbuf, sizeof(attrbuf), FSOPT_NOFOLLOW))
+	return -1;
+#   endif
+    if (!(cap->valid[idx] & mask))
+	return -1;
+    return (cap->capabilities[idx] & mask) != 0;
+}
+
+static char *
+replace_real_basename(char *path, long base, rb_encoding *enc, int norm_p, int flags, rb_pathtype_t *type)
+{
+    struct {
+	u_int32_t length;
+	attrreference_t ref[1];
+	fsobj_type_t objtype;
+	char path[MAXPATHLEN * 3];
+    } __attribute__((aligned(4), packed)) attrbuf[1];
+    struct attrlist al = {ATTR_BIT_MAP_COUNT, 0, ATTR_CMN_NAME|ATTR_CMN_OBJTYPE};
+    const attrreference_t *const ar = attrbuf[0].ref;
+    const char *name;
+    long len;
+    char *tmp;
+    IF_NORMALIZE_UTF8PATH(VALUE utf8str = Qnil);
+
+    *type = path_noent;
+    if (getattrlist(path, &al, attrbuf, sizeof(attrbuf), FSOPT_NOFOLLOW)) {
+	if (!to_be_ignored(errno))
+	    sys_warning(path, enc);
+	return path;
+    }
+
+    switch (attrbuf[0].objtype) {
+      case VREG: *type = path_regular; break;
+      case VDIR: *type = path_directory; break;
+      case VLNK: *type = path_symlink; break;
+      default: *type = path_exist; break;
+    }
+    name = (char *)ar + ar->attr_dataoffset;
+    len = (long)ar->attr_length - 1;
+    if (name + len > (char *)attrbuf + sizeof(attrbuf))
+	return path;
+
+# if NORMALIZE_UTF8PATH
+    if (norm_p && has_nonascii(name, len)) {
+	if (!NIL_P(utf8str = rb_str_normalize_ospath(name, len))) {
+	    RSTRING_GETMEM(utf8str, name, len);
+	}
+    }
+# endif
+
+    tmp = GLOB_REALLOC(path, base + len + 1);
+    if (tmp) {
+	path = tmp;
+	memcpy(path + base, name, len);
+	path[base + len] = '\0';
+    }
+    IF_NORMALIZE_UTF8PATH(if (!NIL_P(utf8str)) rb_str_resize(utf8str, 0));
+    return path;
+}
+#elif defined _WIN32
+VALUE rb_w32_conv_from_wchar(const WCHAR *wstr, rb_encoding *enc);
+int rb_w32_reparse_symlink_p(const WCHAR *path);
+
+static char *
+replace_real_basename(char *path, long base, rb_encoding *enc, int norm_p, int flags, rb_pathtype_t *type)
+{
+    char *plainname = path;
+    volatile VALUE tmp = 0;
+    WIN32_FIND_DATAW fd;
+    WIN32_FILE_ATTRIBUTE_DATA fa;
+    WCHAR *wplain;
+    HANDLE h = INVALID_HANDLE_VALUE;
+    long wlen;
+    int e = 0;
+    if (!fundamental_encoding_p(enc)) {
+	tmp = rb_enc_str_new_cstr(plainname, enc);
+	tmp = rb_str_encode_ospath(tmp);
+	plainname = RSTRING_PTR(tmp);
+    }
+    wplain = rb_w32_mbstr_to_wstr(CP_UTF8, plainname, -1, &wlen);
+    if (tmp) rb_str_resize(tmp, 0);
+    if (!wplain) return path;
+    if (GetFileAttributesExW(wplain, GetFileExInfoStandard, &fa)) {
+	h = FindFirstFileW(wplain, &fd);
+	e = rb_w32_map_errno(GetLastError());
+    }
+    if (fa.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) {
+	if (!rb_w32_reparse_symlink_p(wplain))
+	    fa.dwFileAttributes &= ~FILE_ATTRIBUTE_REPARSE_POINT;
+    }
+    free(wplain);
+    if (h == INVALID_HANDLE_VALUE) {
+	*type = path_noent;
+	if (e && !to_be_ignored(e)) {
+	    errno = e;
+	    sys_warning(path, enc);
+	}
+	return path;
+    }
+    FindClose(h);
+    *type =
+	(fa.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) ? path_symlink :
+	(fa.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? path_directory :
+	path_regular;
+    if (tmp) {
+	char *buf;
+	tmp = rb_w32_conv_from_wchar(fd.cFileName, enc);
+	wlen = RSTRING_LEN(tmp);
+	buf = GLOB_REALLOC(path, base + wlen + 1);
+	if (buf) {
+	    path = buf;
+	    memcpy(path + base, RSTRING_PTR(tmp), wlen);
+	    path[base + wlen] = 0;
+	}
+	rb_str_resize(tmp, 0);
+    }
+    else {
+	char *utf8filename;
+	wlen = WideCharToMultiByte(CP_UTF8, 0, fd.cFileName, -1, NULL, 0, NULL, NULL);
+	utf8filename = GLOB_REALLOC(0, wlen);
+	if (utf8filename) {
+	    char *buf;
+	    WideCharToMultiByte(CP_UTF8, 0, fd.cFileName, -1, utf8filename, wlen, NULL, NULL);
+	    buf = GLOB_REALLOC(path, base + wlen + 1);
+	    if (buf) {
+		path = buf;
+		memcpy(path + base, utf8filename, wlen);
+		path[base + wlen] = 0;
+	    }
+	    GLOB_FREE(utf8filename);
+	}
+    }
+    return path;
+}
+#elif USE_NAME_ON_FS == 1
+# error not implemented
+#endif
 
 #ifndef S_ISDIR
 #   define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
@@ -1288,23 +1648,35 @@ struct glob_args {
     rb_encoding *enc;
 };
 
+#define glob_call_func(func, path, arg, enc) (*(func))((path), (arg), (void *)(enc))
+
 static VALUE
 glob_func_caller(VALUE val)
 {
     struct glob_args *args = (struct glob_args *)val;
 
-    (*args->func)(args->path, args->value, args->enc);
+    glob_call_func(args->func, args->path, args->value, args->enc);
     return Qnil;
 }
 
-#define glob_call_func(func, path, arg, enc) (*(func))((path), (arg), (enc))
+static inline int
+dirent_match(const char *pat, rb_encoding *enc, const char *name, const struct dirent *dp, int flags)
+{
+    if (fnmatch(pat, enc, name, flags) == 0) return 1;
+#ifdef _WIN32
+    if (dp->d_altname && (flags & FNM_SHORTNAME)) {
+	if (fnmatch(pat, enc, dp->d_altname, flags) == 0) return 1;
+    }
+#endif
+    return 0;
+}
 
 static int
 glob_helper(
     const char *path,
+    long pathlen,
     int dirsep, /* '/' should be placed before appending child entry's name to 'path'. */
-    enum answer exist, /* Does 'path' indicate an existing entry? */
-    enum answer isdir, /* Does 'path' indicate a directory or a symlink to a directory? */
+    rb_pathtype_t pathtype, /* type of 'path' */
     struct glob_pattern **beg,
     struct glob_pattern **end,
     int flags,
@@ -1328,8 +1700,15 @@ glob_helper(
 	  case PLAIN:
 	    plain = 1;
 	    break;
-	  case MAGICAL:
+	  case ALPHA:
+#if USE_NAME_ON_FS == 1
+	    plain = 1;
+#else
 	    magical = 1;
+#endif
+	    break;
+	  case MAGICAL:
+	    magical = 2;
 	    break;
 	  case MATCH_ALL:
 	    match_all = 1;
@@ -1343,32 +1722,28 @@ glob_helper(
     }
 
     if (*path) {
-	if (match_all && exist == UNKNOWN) {
-	    if (do_lstat(path, &st, flags) == 0) {
-		exist = YES;
-		isdir = S_ISDIR(st.st_mode) ? YES : S_ISLNK(st.st_mode) ? UNKNOWN : NO;
+	if (match_all && pathtype == path_unknown) {
+	    if (do_lstat(path, &st, flags, enc) == 0) {
+		pathtype = IFTODT(st.st_mode);
 	    }
 	    else {
-		exist = NO;
-		isdir = NO;
+		pathtype = path_noent;
 	    }
 	}
-	if (match_dir && isdir == UNKNOWN) {
-	    if (do_stat(path, &st, flags) == 0) {
-		exist = YES;
-		isdir = S_ISDIR(st.st_mode) ? YES : NO;
+	if (match_dir && pathtype == path_unknown) {
+	    if (do_stat(path, &st, flags, enc) == 0) {
+		pathtype = IFTODT(st.st_mode);
 	    }
 	    else {
-		exist = NO;
-		isdir = NO;
+		pathtype = path_noent;
 	    }
 	}
-	if (match_all && exist == YES) {
+	if (match_all && pathtype > path_noent) {
 	    status = glob_call_func(func, path, arg, enc);
 	    if (status) return status;
 	}
-	if (match_dir && isdir == YES) {
-	    char *tmp = join_path(path, dirsep, "", 0);
+	if (match_dir && pathtype == path_directory) {
+	    char *tmp = join_path(path, pathlen, dirsep, "", 0);
 	    if (!tmp) return -1;
 	    status = glob_call_func(func, tmp, arg, enc);
 	    GLOB_FREE(tmp);
@@ -1376,40 +1751,96 @@ glob_helper(
 	}
     }
 
-    if (exist == NO || isdir == NO) return 0;
+    if (pathtype == path_noent) return 0;
 
     if (magical || recursive) {
 	struct dirent *dp;
 	DIR *dirp;
-	IF_HAVE_READDIR_R(DEFINE_STRUCT_DIRENT entry);
+# if USE_NAME_ON_FS == 2
+	char *plainname = 0;
+# endif
+	IF_NORMALIZE_UTF8PATH(int norm_p);
+# if USE_NAME_ON_FS == 2
+	if (cur + 1 == end && (*cur)->type <= ALPHA) {
+	    plainname = join_path(path, pathlen, dirsep, (*cur)->str, strlen((*cur)->str));
+	    if (!plainname) return -1;
+	    dirp = do_opendir(plainname, flags, enc);
+	    GLOB_FREE(plainname);
+	}
+	else
+# endif
 	dirp = do_opendir(*path ? path : ".", flags, enc);
-	if (dirp == NULL) return 0;
+	if (dirp == NULL) {
+# if FNM_SYSCASE || NORMALIZE_UTF8PATH
+	    if ((magical < 2) && !recursive && (errno == EACCES)) {
+		/* no read permission, fallback */
+		goto literally;
+	    }
+# endif
+	    return 0;
+	}
+	IF_NORMALIZE_UTF8PATH(norm_p = need_normalization(dirp, *path ? path : "."));
 
-	while (READDIR(dirp, enc, &STRUCT_DIRENT(entry), dp)) {
+# if NORMALIZE_UTF8PATH
+	if (!(norm_p || magical || recursive)) {
+	    closedir(dirp);
+	    goto literally;
+	}
+# endif
+# ifdef HAVE_GETATTRLIST
+	if (is_case_sensitive(dirp, path) == 0)
+	    flags |= FNM_CASEFOLD;
+# endif
+	while ((dp = READDIR(dirp, enc)) != NULL) {
 	    char *buf;
-	    enum answer new_isdir = UNKNOWN;
+	    rb_pathtype_t new_pathtype = path_unknown;
+	    const char *name;
+	    size_t namlen;
+	    int dotfile = 0;
+	    IF_NORMALIZE_UTF8PATH(VALUE utf8str = Qnil);
 
 	    if (recursive && dp->d_name[0] == '.') {
-		/* always skip current and parent directories not to recurse infinitely */
-		if (!dp->d_name[1]) continue;
-		if (dp->d_name[1] == '.' && !dp->d_name[2]) continue;
+		++dotfile;
+		if (!dp->d_name[1]) {
+		    /* unless DOTMATCH, skip current directories not to recurse infinitely */
+		    if (!(flags & FNM_DOTMATCH)) continue;
+		    ++dotfile;
+		}
+		else if (dp->d_name[1] == '.' && !dp->d_name[2]) {
+		    /* always skip parent directories not to recurse infinitely */
+		    continue;
+		}
 	    }
 
-	    buf = join_path(path, dirsep, dp->d_name, NAMLEN(dp));
+	    name = dp->d_name;
+	    namlen = NAMLEN(dp);
+# if NORMALIZE_UTF8PATH
+	    if (norm_p && has_nonascii(name, namlen)) {
+		if (!NIL_P(utf8str = rb_str_normalize_ospath(name, namlen))) {
+		    RSTRING_GETMEM(utf8str, name, namlen);
+		}
+	    }
+# endif
+	    buf = join_path(path, pathlen, dirsep, name, namlen);
+	    IF_NORMALIZE_UTF8PATH(if (!NIL_P(utf8str)) rb_str_resize(utf8str, 0));
 	    if (!buf) {
 		status = -1;
 		break;
 	    }
-	    if (recursive && ((flags & FNM_DOTMATCH) || dp->d_name[0] != '.')) {
-		/* RECURSIVE never match dot files unless FNM_DOTMATCH is set */
-#ifndef _WIN32
-		if (do_lstat(buf, &st, flags) == 0)
-		    new_isdir = S_ISDIR(st.st_mode) ? YES : S_ISLNK(st.st_mode) ? UNKNOWN : NO;
+	    name = buf + pathlen + (dirsep != 0);
+	    if (recursive && dotfile < ((flags & FNM_DOTMATCH) ? 2 : 1)) {
+#ifdef DT_UNKNOWN
+		if ((new_pathtype = dp->d_type) != (rb_pathtype_t)DT_UNKNOWN)
+		    /* Got it. We need nothing more. */
+		    ;
 		else
-		    new_isdir = NO;
-#else
-		new_isdir = dp->d_isdir ? (!dp->d_isrep ? YES : UNKNOWN) : NO;
+		    /* fall back to call lstat(2) */
 #endif
+		/* RECURSIVE never match dot files unless FNM_DOTMATCH is set */
+		if (do_lstat(buf, &st, flags, enc) == 0)
+		    new_pathtype = IFTODT(st.st_mode);
+		else
+		    new_pathtype = path_noent;
 	    }
 
 	    new_beg = new_end = GLOB_ALLOC_N(struct glob_pattern *, (end - beg) * 2);
@@ -1422,17 +1853,30 @@ glob_helper(
 	    for (cur = beg; cur < end; ++cur) {
 		struct glob_pattern *p = *cur;
 		if (p->type == RECURSIVE) {
-		    if (new_isdir == YES) /* not symlink but real directory */
+		    if (new_pathtype == path_directory || /* not symlink but real directory */
+			new_pathtype == path_exist)
 			*new_end++ = p; /* append recursive pattern */
 		    p = p->next; /* 0 times recursion */
 		}
-		if (p->type == PLAIN || p->type == MAGICAL) {
-		    if (fnmatch(p->str, enc, dp->d_name, flags) == 0)
+		switch (p->type) {
+		  case ALPHA:
+# if USE_NAME_ON_FS == 2
+		    if (plainname) {
 			*new_end++ = p->next;
+			break;
+		    }
+# endif
+		  case PLAIN:
+		  case MAGICAL:
+		    if (dirent_match(p->str, enc, name, dp, flags))
+			*new_end++ = p->next;
+		  default:
+		    break;
 		}
 	    }
 
-	    status = glob_helper(buf, 1, YES, new_isdir, new_beg, new_end,
+	    status = glob_helper(buf, name - buf + namlen, 1,
+				 new_pathtype, new_beg, new_end,
 				 flags, func, arg, enc);
 	    GLOB_FREE(buf);
 	    GLOB_FREE(new_beg);
@@ -1444,13 +1888,17 @@ glob_helper(
     else if (plain) {
 	struct glob_pattern **copy_beg, **copy_end, **cur2;
 
+# if FNM_SYSCASE || NORMALIZE_UTF8PATH
+      literally:
+# endif
 	copy_beg = copy_end = GLOB_ALLOC_N(struct glob_pattern *, end - beg);
 	if (!copy_beg) return -1;
 	for (cur = beg; cur < end; ++cur)
-	    *copy_end++ = (*cur)->type == PLAIN ? *cur : 0;
+	    *copy_end++ = (*cur)->type <= ALPHA ? *cur : 0;
 
 	for (cur = copy_beg; cur < copy_end; ++cur) {
 	    if (*cur) {
+		rb_pathtype_t new_pathtype = path_unknown;
 		char *buf;
 		char *name;
 		size_t len = strlen((*cur)->str) + 1;
@@ -1477,15 +1925,23 @@ glob_helper(
 		    }
 		}
 
-		buf = join_path(path, dirsep, name, len);
+		buf = join_path(path, pathlen, dirsep, name, len);
 		GLOB_FREE(name);
 		if (!buf) {
 		    GLOB_FREE(new_beg);
 		    status = -1;
 		    break;
 		}
-		status = glob_helper(buf, 1, UNKNOWN, UNKNOWN, new_beg,
-				     new_end, flags, func, arg, enc);
+#if USE_NAME_ON_FS == 1
+		if ((*cur)->type == ALPHA) {
+		    long base = pathlen + (dirsep != 0);
+		    buf = replace_real_basename(buf, base, enc, IF_NORMALIZE_UTF8PATH(1)+0,
+						flags, &new_pathtype);
+		}
+#endif
+		status = glob_helper(buf, pathlen + strlen(buf + pathlen), 1,
+				     new_pathtype, new_beg, new_end,
+				     flags, func, arg, enc);
 		GLOB_FREE(buf);
 		GLOB_FREE(new_beg);
 		if (status) break;
@@ -1513,7 +1969,7 @@ ruby_glob0(const char *path, int flags, ruby_glob_func *func, VALUE arg, rb_enco
     root = rb_enc_path_skip_prefix(root, root + strlen(root), enc);
 #endif
 
-    if (root && *root == '/') root++;
+    if (*root == '/') root++;
 
     n = root - start;
     buf = GLOB_ALLOC_N(char, n + 1);
@@ -1526,7 +1982,8 @@ ruby_glob0(const char *path, int flags, ruby_glob_func *func, VALUE arg, rb_enco
 	GLOB_FREE(buf);
 	return -1;
     }
-    status = glob_helper(buf, 0, UNKNOWN, UNKNOWN, &list, &list + 1, flags, func, arg, enc);
+    status = glob_helper(buf, n, 0, path_unknown, &list, &list + 1,
+			 flags, func, arg, enc);
     glob_free_pattern(list);
     GLOB_FREE(buf);
 
@@ -1580,7 +2037,15 @@ rb_glob(const char *path, void (*func)(const char *, VALUE, void *), VALUE arg)
 static void
 push_pattern(const char *path, VALUE ary, void *enc)
 {
-    rb_ary_push(ary, rb_external_str_new_with_enc(path, strlen(path), enc));
+#if defined _WIN32 || defined __APPLE__
+    VALUE name = rb_utf8_str_new_cstr(path);
+    rb_encoding *eenc = rb_default_internal_encoding();
+    OBJ_TAINT(name);
+    name = rb_str_conv_enc(name, NULL, eenc ? eenc : enc);
+#else
+    VALUE name = rb_external_str_new_with_enc(path, strlen(path), enc);
+#endif
+    rb_ary_push(ary, name);
 }
 
 static int
@@ -1598,7 +2063,7 @@ ruby_brace_expand(const char *str, int flags, ruby_glob_func *func, VALUE arg,
 	if (*p == '{' && nest++ == 0) {
 	    lbrace = p;
 	}
-	if (*p == '}' && --nest <= 0) {
+	if (*p == '}' && lbrace && --nest == 0) {
 	    rbrace = p;
 	    break;
 	}
@@ -1636,7 +2101,7 @@ ruby_brace_expand(const char *str, int flags, ruby_glob_func *func, VALUE arg,
 	GLOB_FREE(buf);
     }
     else if (!lbrace && !rbrace) {
-	status = (*func)(s, arg, enc);
+	status = glob_call_func(func, s, arg, enc);
     }
 
     return status;
@@ -1656,12 +2121,12 @@ glob_brace(const char *path, VALUE val, void *enc)
     return ruby_glob0(path, arg->flags, arg->func, arg->value, enc);
 }
 
-static int
-ruby_brace_glob0(const char *str, int flags, ruby_glob_func *func, VALUE arg,
-		 rb_encoding* enc)
+int
+ruby_brace_glob_with_enc(const char *str, int flags, ruby_glob_func *func, VALUE arg, rb_encoding *enc)
 {
     struct brace_args args;
 
+    flags &= ~GLOB_VERBOSE;
     args.func = func;
     args.value = arg;
     args.flags = flags;
@@ -1671,30 +2136,47 @@ ruby_brace_glob0(const char *str, int flags, ruby_glob_func *func, VALUE arg,
 int
 ruby_brace_glob(const char *str, int flags, ruby_glob_func *func, VALUE arg)
 {
-    return ruby_brace_glob0(str, flags & ~GLOB_VERBOSE, func, arg,
-			    rb_ascii8bit_encoding());
+    return ruby_brace_glob_with_enc(str, flags, func, arg, rb_ascii8bit_encoding());
 }
 
-int
-ruby_brace_glob_with_enc(const char *str, int flags, ruby_glob_func *func, VALUE arg, rb_encoding *enc)
+struct push_glob_args {
+    struct glob_args glob;
+    int flags;
+};
+
+static int
+push_caller(const char *path, VALUE val, void *enc)
 {
-    return ruby_brace_glob0(str, flags & ~GLOB_VERBOSE, func, arg, enc);
+    struct push_glob_args *arg = (struct push_glob_args *)val;
+
+    return ruby_glob0(path, arg->flags, rb_glob_caller, (VALUE)&arg->glob, enc);
 }
 
 static int
 push_glob(VALUE ary, VALUE str, int flags)
 {
-    struct glob_args args;
+    struct push_glob_args args;
     rb_encoding *enc = rb_enc_get(str);
 
-    if (enc == rb_usascii_encoding()) enc = rb_filesystem_encoding();
-    args.func = push_pattern;
-    args.value = ary;
-    args.enc = enc;
+#if defined _WIN32 || defined __APPLE__
+    str = rb_str_encode_ospath(str);
+#endif
+    if (rb_enc_to_index(enc) == ENCINDEX_US_ASCII)
+	enc = rb_filesystem_encoding();
+    if (rb_enc_to_index(enc) == ENCINDEX_US_ASCII)
+	enc = rb_ascii8bit_encoding();
+    flags |= GLOB_VERBOSE;
+    args.glob.func = push_pattern;
+    args.glob.value = ary;
+    args.glob.enc = enc;
+    args.flags = flags;
+#if defined _WIN32 || defined __APPLE__
+    enc = rb_utf8_encoding();
+#endif
 
     RB_GC_GUARD(str);
-    return ruby_brace_glob0(RSTRING_PTR(str), flags | GLOB_VERBOSE,
-			    rb_glob_caller, (VALUE)&args, enc);
+    return ruby_brace_expand(RSTRING_PTR(str), flags,
+			     push_caller, (VALUE)&args, enc);
 }
 
 static VALUE
@@ -1725,7 +2207,7 @@ rb_push_glob(VALUE str, int flags) /* '\0' is delimiter */
 }
 
 static VALUE
-dir_globs(long argc, VALUE *argv, int flags)
+dir_globs(long argc, const VALUE *argv, int flags)
 {
     VALUE ary = rb_ary_new();
     long i;
@@ -1743,11 +2225,9 @@ dir_globs(long argc, VALUE *argv, int flags)
 
 /*
  *  call-seq:
- *     Dir[ array ]                 -> array
  *     Dir[ string [, string ...] ] -> array
  *
  *  Equivalent to calling
- *  <code>Dir.glob(</code><i>array,</i><code>0)</code> and
  *  <code>Dir.glob([</code><i>string,...</i><code>],0)</code>.
  *
  */
@@ -1762,49 +2242,56 @@ dir_s_aref(int argc, VALUE *argv, VALUE obj)
 
 /*
  *  call-seq:
- *     Dir.glob( pattern, [flags] ) -> array
- *     Dir.glob( pattern, [flags] ) {| filename | block }  -> nil
- *
- *  Returns the filenames found by expanding <i>pattern</i> which is
- *  an +Array+ of the patterns or the pattern +String+, either as an
- *  <i>array</i> or as parameters to the block. Note that this pattern
- *  is not a regexp (it's closer to a shell glob). See
- *  <code>File::fnmatch</code> for the meaning of the <i>flags</i>
- *  parameter. Note that case sensitivity depends on your system (so
- *  <code>File::FNM_CASEFOLD</code> is ignored), as does the order
- *  in which the results are returned.
- *
- *  <code>*</code>::        Matches any file. Can be restricted by
- *                          other values in the glob. <code>*</code>
- *                          will match all files; <code>c*</code> will
- *                          match all files beginning with
- *                          <code>c</code>; <code>*c</code> will match
- *                          all files ending with <code>c</code>; and
- *                          <code>\*c\*</code> will match all files that
- *                          have <code>c</code> in them (including at
- *                          the beginning or end). Equivalent to
- *                          <code>/ .* /x</code> in regexp. Note, this
- *                          will not match Unix-like hidden files (dotfiles).
- *                          In order to include those in the match results,
- *                          you must use something like <code>"{*,.*}"</code>.
- *  <code>**</code>::       Matches directories recursively.
- *  <code>?</code>::        Matches any one character. Equivalent to
- *                          <code>/.{1}/</code> in regexp.
- *  <code>[set]</code>::    Matches any one character in +set+.
- *                          Behaves exactly like character sets in
- *                          Regexp, including set negation
- *                          (<code>[^a-z]</code>).
- *  <code>{p,q}</code>::    Matches either literal <code>p</code> or
- *                          literal <code>q</code>. Matching literals
- *                          may be more than one character in length.
- *                          More than two literals may be specified.
- *                          Equivalent to pattern alternation in
- *                          regexp.
- *  <code> \\ </code>::     Escapes the next metacharacter.
- *                          Note that this means you cannot use backslash
- *                          in windows as part of a glob,
- *                          i.e. <code>Dir["c:\\foo*"]</code> will not work,
- *                          use <code>Dir["c:/foo*"]</code> instead.
+ *     Dir.glob( pattern, [flags] ) -> matches
+ *     Dir.glob( pattern, [flags] ) { |filename| block }  -> nil
+ *
+ *  Expands +pattern+, which is an Array of patterns or a pattern String, and
+ *  returns the results as +matches+ or as arguments given to the block.
+ *
+ *  Note that this pattern is not a regexp, it's closer to a shell glob.  See
+ *  File::fnmatch for the meaning of the +flags+ parameter.  Note that case
+ *  sensitivity depends on your system (so File::FNM_CASEFOLD is ignored), as
+ *  does the order in which the results are returned.
+ *
+ *  <code>*</code>::
+ *    Matches any file. Can be restricted by other values in the glob.
+ *    Equivalent to <code>/ .* /x</code> in regexp.
+ *
+ *    <code>*</code>::     Matches all files
+ *    <code>c*</code>::    Matches all files beginning with <code>c</code>
+ *    <code>*c</code>::    Matches all files ending with <code>c</code>
+ *    <code>\*c\*</code>:: Match all files that have <code>c</code> in them
+ *                         (including at the beginning or end).
+ *
+ *    Note, this will not match Unix-like hidden files (dotfiles).  In order
+ *    to include those in the match results, you must use the
+ *    File::FNM_DOTMATCH flag or something like <code>"{*,.*}"</code>.
+ *
+ *  <code>**</code>::
+ *    Matches directories recursively.
+ *
+ *  <code>?</code>::
+ *    Matches any one character. Equivalent to <code>/.{1}/</code> in regexp.
+ *
+ *  <code>[set]</code>::
+ *    Matches any one character in +set+.  Behaves exactly like character sets
+ *    in Regexp, including set negation (<code>[^a-z]</code>).
+ *
+ *  <code>{p,q}</code>::
+ *    Matches either literal <code>p</code> or literal <code>q</code>.
+ *    Equivalent to pattern alternation in regexp.
+ *
+ *    Matching literals may be more than one character in length.  More than
+ *    two literals may be specified.
+ *
+ *  <code> \\ </code>::
+ *    Escapes the next metacharacter.
+ *
+ *    Note that this means you cannot use backslash on windows as part of a
+ *    glob, i.e.  <code>Dir["c:\\foo*"]</code> will not work, use
+ *    <code>Dir["c:/foo*"]</code> instead.
+ *
+ *  Examples:
  *
  *     Dir["config.?"]                     #=> ["config.h"]
  *     Dir.glob("config.?")                #=> ["config.h"]
@@ -1844,8 +2331,9 @@ dir_s_glob(int argc, VALUE *argv, VALUE obj)
 	ary = rb_push_glob(str, flags);
     }
     else {
-	volatile VALUE v = ary;
-	ary = dir_globs(RARRAY_LEN(v), RARRAY_PTR(v), flags);
+	VALUE v = ary;
+	ary = dir_globs(RARRAY_LEN(v), RARRAY_CONST_PTR(v), flags);
+	RB_GC_GUARD(v);
     }
 
     if (rb_block_given_p()) {
@@ -1867,8 +2355,10 @@ dir_open_dir(int argc, VALUE *argv)
 
 /*
  *  call-seq:
- *     Dir.foreach( dirname ) {| filename | block }  -> nil
- *     Dir.foreach( dirname )                        -> an_enumerator
+ *     Dir.foreach( dirname ) {| filename | block }                 -> nil
+ *     Dir.foreach( dirname, encoding: enc ) {| filename | block }  -> nil
+ *     Dir.foreach( dirname )                                       -> an_enumerator
+ *     Dir.foreach( dirname, encoding: enc )                        -> an_enumerator
  *
  *  Calls the block once for each entry in the named directory, passing
  *  the filename of each entry as a parameter to the block.
@@ -1898,12 +2388,16 @@ dir_foreach(int argc, VALUE *argv, VALUE io)
 
 /*
  *  call-seq:
- *     Dir.entries( dirname ) -> array
+ *     Dir.entries( dirname )                -> array
+ *     Dir.entries( dirname, encoding: enc ) -> array
  *
  *  Returns an array containing all of the filenames in the given
  *  directory. Will raise a <code>SystemCallError</code> if the named
  *  directory doesn't exist.
  *
+ *  The optional <i>enc</i> argument specifies the encoding of the directory.
+ *  If not specified, the filesystem encoding is used.
+ *
  *     Dir.entries("testdir")   #=> [".", "..", "config.h", "main.rb"]
  *
  */
@@ -1947,38 +2441,50 @@ fnmatch_brace(const char *pattern, VALUE val, void *enc)
  *     File.fnmatch( pattern, path, [flags] ) -> (true or false)
  *     File.fnmatch?( pattern, path, [flags] ) -> (true or false)
  *
- *  Returns true if <i>path</i> matches against <i>pattern</i> The
- *  pattern is not a regular expression; instead it follows rules
- *  similar to shell filename globbing. It may contain the following
- *  metacharacters:
- *
- *  <code>*</code>::        Matches any file. Can be restricted by
- *                          other values in the glob. <code>*</code>
- *                          will match all files; <code>c*</code> will
- *                          match all files beginning with
- *                          <code>c</code>; <code>*c</code> will match
- *                          all files ending with <code>c</code>; and
- *                          <code>\*c*</code> will match all files that
- *                          have <code>c</code> in them (including at
- *                          the beginning or end). Equivalent to
- *                          <code>/ .* /x</code> in regexp.
- *  <code>**</code>::       Matches directories recursively or files
- *                          expansively.
- *  <code>?</code>::        Matches any one character. Equivalent to
- *                          <code>/.{1}/</code> in regexp.
- *  <code>[set]</code>::    Matches any one character in +set+.
- *                          Behaves exactly like character sets in
- *                          Regexp, including set negation
- *                          (<code>[^a-z]</code>).
- *  <code> \ </code>::      Escapes the next metacharacter.
- *
- *  <i>flags</i> is a bitwise OR of the <code>FNM_xxx</code>
- *  parameters. The same glob pattern and flags are used by
- *  <code>Dir::glob</code>.
+ *  Returns true if +path+ matches against +pattern+.  The pattern is not a
+ *  regular expression; instead it follows rules similar to shell filename
+ *  globbing.  It may contain the following metacharacters:
+ *
+ *  <code>*</code>::
+ *    Matches any file. Can be restricted by other values in the glob.
+ *    Equivalent to <code>/ .* /x</code> in regexp.
+ *
+ *    <code>*</code>::    Matches all files regular files
+ *    <code>c*</code>::   Matches all files beginning with <code>c</code>
+ *    <code>*c</code>::   Matches all files ending with <code>c</code>
+ *    <code>\*c*</code>:: Matches all files that have <code>c</code> in them
+ *                        (including at the beginning or end).
+ *
+ *    To match hidden files (that start with a <code>.</code> set the
+ *    File::FNM_DOTMATCH flag.
+ *
+ *  <code>**</code>::
+ *    Matches directories recursively or files expansively.
+ *
+ *  <code>?</code>::
+ *    Matches any one character. Equivalent to <code>/.{1}/</code> in regexp.
+ *
+ *  <code>[set]</code>::
+ *    Matches any one character in +set+.  Behaves exactly like character sets
+ *    in Regexp, including set negation (<code>[^a-z]</code>).
+ *
+ *  <code> \ </code>::
+ *    Escapes the next metacharacter.
+ *
+ *  <code>{a,b}</code>::
+ *    Matches pattern a and pattern b if File::FNM_EXTGLOB flag is enabled.
+ *    Behaves like a Regexp union (<code>(?:a|b)</code>).
+ *
+ *  +flags+ is a bitwise OR of the <code>FNM_XXX</code> constants. The same
+ *  glob pattern and flags are used by Dir::glob.
+ *
+ *  Examples:
  *
  *     File.fnmatch('cat',       'cat')        #=> true  # match entire string
  *     File.fnmatch('cat',       'category')   #=> false # only match partial string
- *     File.fnmatch('c{at,ub}s', 'cats')       #=> false # { } isn't supported
+ *
+ *     File.fnmatch('c{at,ub}s', 'cats')                    #=> false # { } isn't supported by default
+ *     File.fnmatch('c{at,ub}s', 'cats', File::FNM_EXTGLOB) #=> true  # { } is supported on FNM_EXTGLOB
  *
  *     File.fnmatch('c?t',     'cat')          #=> true  # '?' match only 1 character
  *     File.fnmatch('c??t',    'cat')          #=> false # ditto
@@ -2072,31 +2578,49 @@ dir_s_home(int argc, VALUE *argv, VALUE obj)
     VALUE user;
     const char *u = 0;
 
-    rb_scan_args(argc, argv, "01", &user);
+    rb_check_arity(argc, 0, 1);
+    user = (argc > 0) ? argv[0] : Qnil;
     if (!NIL_P(user)) {
 	SafeStringValue(user);
+	rb_must_asciicompat(user);
 	u = StringValueCStr(user);
+	if (*u) {
+	    return rb_home_dir_of(user, rb_str_new(0, 0));
+	}
     }
-    return rb_home_dir(u, rb_str_new(0, 0));
+    return rb_default_home_dir(rb_str_new(0, 0));
+
 }
 
 #if 0
 /*
  * call-seq:
  *   Dir.exist?(file_name)   ->  true or false
- *   Dir.exists?(file_name)   ->  true or false
  *
  * Returns <code>true</code> if the named file is a directory,
  * <code>false</code> otherwise.
  *
  */
 VALUE
-rb_file_directory_p()
+rb_file_directory_p(void)
 {
 }
 #endif
 
 /*
+ * call-seq:
+ *   Dir.exists?(file_name)  ->  true or false
+ *
+ * Deprecated method. Don't use.
+ */
+static VALUE
+rb_dir_exists_p(VALUE obj, VALUE fname)
+{
+    rb_warning("Dir.exists? is a deprecated name, use Dir.exist? instead");
+    return rb_file_directory_p(obj, fname);
+}
+
+/*
  *  Objects of class <code>Dir</code> are directory streams representing
  *  directories in the underlying file system. They provide a variety of
  *  ways to list directories and their contents. See also
@@ -2120,6 +2644,7 @@ Init_Dir(void)
     rb_define_singleton_method(rb_cDir, "entries", dir_entries, -1);
 
     rb_define_method(rb_cDir,"initialize", dir_initialize, -1);
+    rb_define_method(rb_cDir,"fileno", dir_fileno, 0);
     rb_define_method(rb_cDir,"path", dir_path, 0);
     rb_define_method(rb_cDir,"to_path", dir_path, 0);
     rb_define_method(rb_cDir,"inspect", dir_inspect, 0);
@@ -2145,15 +2670,55 @@ Init_Dir(void)
     rb_define_singleton_method(rb_cDir,"glob", dir_s_glob, -1);
     rb_define_singleton_method(rb_cDir,"[]", dir_s_aref, -1);
     rb_define_singleton_method(rb_cDir,"exist?", rb_file_directory_p, 1);
-    rb_define_singleton_method(rb_cDir,"exists?", rb_file_directory_p, 1);
+    rb_define_singleton_method(rb_cDir,"exists?", rb_dir_exists_p, 1);
 
     rb_define_singleton_method(rb_cFile,"fnmatch", file_s_fnmatch, -1);
     rb_define_singleton_method(rb_cFile,"fnmatch?", file_s_fnmatch, -1);
 
+    /*  Document-const: File::Constants::FNM_NOESCAPE
+     *
+     *  Disables escapes in File.fnmatch and Dir.glob patterns
+     */
     rb_file_const("FNM_NOESCAPE", INT2FIX(FNM_NOESCAPE));
+
+    /*  Document-const: File::Constants::FNM_PATHNAME
+     *
+     *  Wildcards in File.fnmatch and Dir.glob patterns do not match directory
+     *  separators
+     */
     rb_file_const("FNM_PATHNAME", INT2FIX(FNM_PATHNAME));
+
+    /*  Document-const: File::Constants::FNM_DOTMATCH
+     *
+     *  The '*' wildcard matches filenames starting with "." in File.fnmatch
+     *  and Dir.glob patterns
+     */
     rb_file_const("FNM_DOTMATCH", INT2FIX(FNM_DOTMATCH));
+
+    /*  Document-const: File::Constants::FNM_CASEFOLD
+     *
+     *  Makes File.fnmatch patterns case insensitive (but not Dir.glob
+     *  patterns).
+     */
     rb_file_const("FNM_CASEFOLD", INT2FIX(FNM_CASEFOLD));
+
+    /*  Document-const: File::Constants::FNM_EXTGLOB
+     *
+     *  Allows file globbing through "{a,b}" in File.fnmatch patterns.
+     */
     rb_file_const("FNM_EXTGLOB", INT2FIX(FNM_EXTGLOB));
+
+    /*  Document-const: File::Constants::FNM_SYSCASE
+     *
+     *  System default case insensitiveness, equals to FNM_CASEFOLD or
+     *  0.
+     */
     rb_file_const("FNM_SYSCASE", INT2FIX(FNM_SYSCASE));
+
+    /*  Document-const: File::Constants::FNM_SHORTNAME
+     *
+     *  Makes patterns to match short names if existing.  Valid only
+     *  on Microsoft Windows.
+     */
+    rb_file_const("FNM_SHORTNAME", INT2FIX(FNM_SHORTNAME));
 }
diff --git a/dln.c b/dln.c
index e6b20d54e3..0f918af090 100644
--- a/dln.c
+++ b/dln.c
@@ -47,6 +47,7 @@ void *xcalloc();
 void *xrealloc();
 #endif
 
+#undef free
 #define free(x) xfree(x)
 
 #include <stdio.h>
@@ -84,10 +85,6 @@ char *getenv();
 # endif
 #endif
 
-#if defined(__BEOS__) || defined(__HAIKU__)
-# include <image.h>
-#endif
-
 #ifndef dln_loaderror
 static void
 dln_loaderror(const char *format, ...)
@@ -105,13 +102,12 @@ dln_loaderror(const char *format, ...)
 # define USE_DLN_DLOPEN
 #endif
 
-#ifndef FUNCNAME_PATTERN
-# if defined(__hp9000s300) || ((defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)) && !defined(__ELF__)) || defined(__BORLANDC__) || defined(NeXT) || defined(__WATCOMC__) || defined(MACOSX_DYLD)
-#  define FUNCNAME_PREFIX "_Init_"
-# else
-#  define FUNCNAME_PREFIX "Init_"
-# endif
+#if defined(__hp9000s300) || ((defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)) && !defined(__ELF__)) || defined(NeXT) || defined(MACOSX_DYLD)
+# define EXTERNAL_PREFIX "_"
+#else
+# define EXTERNAL_PREFIX ""
 #endif
+#define FUNCNAME_PREFIX EXTERNAL_PREFIX"Init_"
 
 #if defined __CYGWIN__ || defined DOSISH
 #define isdirsep(x) ((x) == '/' || (x) == '\\')
@@ -1117,12 +1113,12 @@ dln_sym(const char *name)
 #endif
 #endif
 
-#if defined _WIN32 && !defined __CYGWIN__
+#ifdef _WIN32
 #include <windows.h>
 #include <imagehlp.h>
 #endif
 
-#if defined _WIN32 && !defined __CYGWIN__
+#ifdef _WIN32
 static const char *
 dln_strerror(char *message, size_t size)
 {
@@ -1178,25 +1174,26 @@ dln_strerror(void)
 static void
 aix_loaderror(const char *pathname)
 {
-  char *message[1024], errbuf[1024];
-  int i;
-#define ERRBUF_APPEND(s) strncat(errbuf, (s), sizeof(errbuf)-strlen(errbuf)-1)
-  snprintf(errbuf, sizeof(errbuf), "load failed - %s. ", pathname);
-
-  if (loadquery(L_GETMESSAGES, &message[0], sizeof(message)) != -1) {
-    ERRBUF_APPEND("Please issue below command for detailed reasons:\n\t");
-    ERRBUF_APPEND("/usr/sbin/execerror ruby ");
-    for (i=0; message[i]; i++) {
-      ERRBUF_APPEND("\"");
-      ERRBUF_APPEND(message[i]);
-      ERRBUF_APPEND("\" ");
+    char *message[1024], errbuf[1024];
+    int i;
+#define ERRBUF_APPEND(s) strlcat(errbuf, (s), sizeof(errbuf))
+    snprintf(errbuf, sizeof(errbuf), "load failed - %s. ", pathname);
+
+    if (loadquery(L_GETMESSAGES, &message[0], sizeof(message)) != -1) {
+	ERRBUF_APPEND("Please issue below command for detailed reasons:\n\t");
+	ERRBUF_APPEND("/usr/sbin/execerror ruby ");
+	for (i=0; message[i]; i++) {
+	    ERRBUF_APPEND("\"");
+	    ERRBUF_APPEND(message[i]);
+	    ERRBUF_APPEND("\" ");
+	}
+	ERRBUF_APPEND("\n");
     }
-    ERRBUF_APPEND("\n");
-  } else {
-    ERRBUF_APPEND(strerror(errno));
-    ERRBUF_APPEND("[loadquery failed]");
-  }
-  dln_loaderror("%s", errbuf);
+    else {
+	ERRBUF_APPEND(strerror(errno));
+	ERRBUF_APPEND("[loadquery failed]");
+    }
+    dln_loaderror("%s", errbuf);
 }
 #endif
 
@@ -1253,22 +1250,27 @@ dln_load(const char *file)
 #define DLN_ERROR() (error = dln_strerror(), strcpy(ALLOCA_N(char, strlen(error) + 1), error))
 #endif
 
-#if defined _WIN32 && !defined __CYGWIN__
+#if defined _WIN32
     HINSTANCE handle;
-    char winfile[MAXPATHLEN];
+    WCHAR *winfile;
     char message[1024];
     void (*init_fct)();
     char *buf;
 
-    if (strlen(file) >= MAXPATHLEN) dln_loaderror("filename too long");
-
     /* Load the file as an object one */
     init_funcname(&buf, file);
 
-    strlcpy(winfile, file, sizeof(winfile));
+    /* Convert the file path to wide char */
+    winfile = rb_w32_mbstr_to_wstr(CP_UTF8, file, -1, NULL);
+    if (!winfile) {
+	dln_memerror();
+    }
 
     /* Load file */
-    if ((handle = LoadLibrary(winfile)) == NULL) {
+    handle = LoadLibraryW(winfile);
+    free(winfile);
+
+    if (!handle) {
 	error = dln_strerror();
 	goto failed;
     }
@@ -1318,33 +1320,32 @@ dln_load(const char *file)
 # define RTLD_GLOBAL 0
 #endif
 
-#ifdef __native_client__
-	char* p, *orig;
-        if (file[0] == '.' && file[1] == '/') file+=2;
-	orig = strdup(file);
-	for (p = file; *p; ++p) {
-	    if (*p == '/') *p = '_';
-	}
-#endif
 	/* Load file */
 	if ((handle = (void*)dlopen(file, RTLD_LAZY|RTLD_GLOBAL)) == NULL) {
-#ifdef __native_client__
-            free(orig);
-#endif
 	    error = dln_strerror();
 	    goto failed;
 	}
+# if defined RUBY_EXPORT
+	{
+	    static const char incompatible[] = "incompatible library version";
+	    void *ex = dlsym(handle, EXTERNAL_PREFIX"ruby_xmalloc");
+	    if (ex && ex != ruby_xmalloc) {
+
+#   if defined __APPLE__ && \
+    defined(MAC_OS_X_VERSION_MIN_REQUIRED) && \
+    (MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_11)
+		/* dlclose() segfaults */
+		rb_fatal("%s - %s", incompatible, file);
+#   else
+		dlclose(handle);
+		error = incompatible;
+		goto failed;
+#   endif
+	    }
+	}
+# endif
 
 	init_fct = (void(*)())(VALUE)dlsym(handle, buf);
-#ifdef __native_client__
-	strcpy(file, orig);
-	free(orig);
-#endif
-#if defined __SYMBIAN32__
-	if (init_fct == NULL) {
-	    init_fct = (void(*)())dlsym(handle, "1"); /* Some Symbian versions do not support symbol table in DLL, ordinal numbers only */
-	}
-#endif
 	if (init_fct == NULL) {
 	    error = DLN_ERROR();
 	    dlclose(handle);
@@ -1439,54 +1440,6 @@ dln_load(const char *file)
     }
 #endif
 
-#if defined(__BEOS__) || defined(__HAIKU__)
-# define DLN_DEFINED
-    {
-      status_t err_stat;  /* BeOS error status code */
-      image_id img_id;    /* extension module unique id */
-      void (*init_fct)(); /* initialize function for extension module */
-
-      /* load extension module */
-      img_id = load_add_on(file);
-      if (img_id <= 0) {
-	dln_loaderror("Failed to load add_on %.200s error_code=%x",
-	  file, img_id);
-      }
-
-      /* find symbol for module initialize function. */
-      /* The Be Book KernelKit Images section described to use
-	 B_SYMBOL_TYPE_TEXT for symbol of function, not
-	 B_SYMBOL_TYPE_CODE. Why ? */
-      /* strcat(init_fct_symname, "__Fv"); */  /* parameter nothing. */
-      /* "__Fv" dont need! The Be Book Bug ? */
-      err_stat = get_image_symbol(img_id, buf,
-				  B_SYMBOL_TYPE_TEXT, (void **)&init_fct);
-
-      if (err_stat != B_NO_ERROR) {
-	char real_name[MAXPATHLEN];
-
-	strlcpy(real_name, buf, MAXPATHLEN);
-	strlcat(real_name, "__Fv", MAXPATHLEN);
-        err_stat = get_image_symbol(img_id, real_name,
-				    B_SYMBOL_TYPE_TEXT, (void **)&init_fct);
-      }
-
-      if ((B_BAD_IMAGE_ID == err_stat) || (B_BAD_INDEX == err_stat)) {
-	unload_add_on(img_id);
-	dln_loaderror("Failed to lookup Init function %.200s", file);
-      }
-      else if (B_NO_ERROR != err_stat) {
-	char errmsg[] = "Internal of BeOS version. %.200s (symbol_name = %s)";
-	unload_add_on(img_id);
-	dln_loaderror(errmsg, strerror(err_stat), buf);
-      }
-
-      /* call module initialize function. */
-      (*init_fct)();
-      return (void*)img_id;
-    }
-#endif /* __BEOS__ || __HAIKU__ */
-
 #ifndef DLN_DEFINED
     dln_notimplement();
 #endif
diff --git a/dln.h b/dln.h
index abbd6d85a3..d98b2607e2 100644
--- a/dln.h
+++ b/dln.h
@@ -28,14 +28,17 @@
 # define _(args) ()
 #endif
 
-#if defined __GNUC__ && __GNUC__ >= 4
-#pragma GCC visibility push(default)
+RUBY_SYMBOL_EXPORT_BEGIN
+
+#ifndef DLN_FIND_EXTRA_ARG
+#define DLN_FIND_EXTRA_ARG
+#endif
+#ifndef DLN_FIND_EXTRA_ARG_DECL
+#define DLN_FIND_EXTRA_ARG_DECL
 #endif
 
-DEPRECATED(char *dln_find_exe(const char*,const char*));
-DEPRECATED(char *dln_find_file(const char*,const char*));
-char *dln_find_exe_r(const char*,const char*,char*,size_t);
-char *dln_find_file_r(const char*,const char*,char*,size_t);
+char *dln_find_exe_r(const char*,const char*,char*,size_t DLN_FIND_EXTRA_ARG_DECL);
+char *dln_find_file_r(const char*,const char*,char*,size_t DLN_FIND_EXTRA_ARG_DECL);
 
 #ifdef USE_DLN_A_OUT
 extern char *dln_argv0;
@@ -43,8 +46,6 @@ extern char *dln_argv0;
 
 void *dln_load(const char*);
 
-#if defined __GNUC__ && __GNUC__ >= 4
-#pragma GCC visibility pop
-#endif
+RUBY_SYMBOL_EXPORT_END
 
 #endif
diff --git a/dln_find.c b/dln_find.c
index d9166fac39..b17b0d23e1 100644
--- a/dln_find.c
+++ b/dln_find.c
@@ -11,19 +11,11 @@
 
 #ifdef RUBY_EXPORT
 #include "ruby/ruby.h"
-#define dln_notimplement rb_notimplement
-#define dln_memerror rb_memerror
-#define dln_exit rb_exit
-#define dln_loaderror rb_loaderror
 #define dln_warning rb_warning
 #define dln_warning_arg
 #else
-#define dln_notimplement --->>> dln not implemented <<<---
-#define dln_memerror abort
-#define dln_exit exit
 #define dln_warning fprintf
 #define dln_warning_arg stderr,
-static void dln_loaderror(const char *format, ...);
 #endif
 #include "dln.h"
 
@@ -67,14 +59,16 @@ char *dln_argv0;
 # include <unistd.h>
 #endif
 
-#ifndef _WIN32
+#if !defined(_WIN32) && !HAVE_DECL_GETENV
 char *getenv();
 #endif
 
-static char *dln_find_1(const char *fname, const char *path, char *buf, size_t size, int exe_flag);
+static char *dln_find_1(const char *fname, const char *path, char *buf, size_t size, int exe_flag
+			DLN_FIND_EXTRA_ARG_DECL);
 
 char *
-dln_find_exe_r(const char *fname, const char *path, char *buf, size_t size)
+dln_find_exe_r(const char *fname, const char *path, char *buf, size_t size
+	       DLN_FIND_EXTRA_ARG_DECL)
 {
     char *envpath = 0;
 
@@ -84,41 +78,30 @@ dln_find_exe_r(const char *fname, const char *path, char *buf, size_t size)
     }
 
     if (!path) {
-#if defined(_WIN32)
-	path = "/usr/local/bin;/usr/ucb;/usr/bin;/bin;.";
-#else
-	path = "/usr/local/bin:/usr/ucb:/usr/bin:/bin:.";
-#endif
+	path =
+	    "/usr/local/bin" PATH_SEP
+	    "/usr/ucb" PATH_SEP
+	    "/usr/bin" PATH_SEP
+	    "/bin" PATH_SEP
+	    ".";
     }
-    buf = dln_find_1(fname, path, buf, size, 1);
+    buf = dln_find_1(fname, path, buf, size, 1 DLN_FIND_EXTRA_ARG);
     if (envpath) free(envpath);
     return buf;
 }
 
 char *
-dln_find_file_r(const char *fname, const char *path, char *buf, size_t size)
+dln_find_file_r(const char *fname, const char *path, char *buf, size_t size
+		DLN_FIND_EXTRA_ARG_DECL)
 {
     if (!path) path = ".";
-    return dln_find_1(fname, path, buf, size, 0);
-}
-
-static char fbuf[MAXPATHLEN];
-
-char *
-dln_find_exe(const char *fname, const char *path)
-{
-    return dln_find_exe_r(fname, path, fbuf, sizeof(fbuf));
-}
-
-char *
-dln_find_file(const char *fname, const char *path)
-{
-    return dln_find_file_r(fname, path, fbuf, sizeof(fbuf));
+    return dln_find_1(fname, path, buf, size, 0 DLN_FIND_EXTRA_ARG);
 }
 
 static char *
 dln_find_1(const char *fname, const char *path, char *fbuf, size_t size,
-	   int exe_flag /* non 0 if looking for executable. */)
+	   int exe_flag /* non 0 if looking for executable. */
+	   DLN_FIND_EXTRA_ARG_DECL)
 {
     register const char *dp;
     register const char *ep;
@@ -293,13 +276,15 @@ dln_find_1(const char *fname, const char *path, char *fbuf, size_t size,
 	    }
 	    goto next;
 	}
-#endif /* _WIN32 or __EMX__ */
+#endif
 
-	if (stat(fbuf, &st) == 0) {
+#ifndef S_ISREG
+# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
+#endif
+	if (stat(fbuf, &st) == 0 && S_ISREG(st.st_mode)) {
 	    if (exe_flag == 0) return fbuf;
 	    /* looking for executable */
-	    if (!S_ISDIR(st.st_mode) && eaccess(fbuf, X_OK) == 0)
-		return fbuf;
+	    if (eaccess(fbuf, X_OK) == 0) return fbuf;
 	}
       next:
 	/* if not, and no other alternatives, life is bleak */
diff --git a/dmyenc.c b/dmyenc.c
new file mode 100644
index 0000000000..7e006e826c
--- /dev/null
+++ b/dmyenc.c
@@ -0,0 +1,10 @@
+#define require(name) ruby_require_internal(name, (unsigned int)sizeof(name)-1)
+int ruby_require_internal(const char *, int);
+
+void
+Init_enc(void)
+{
+    if (require("enc/encdb.so") == 1) {
+	require("enc/trans/transdb.so");
+    }
+}
diff --git a/dmyencoding.c b/dmyencoding.c
deleted file mode 100644
index 1bd1106e69..0000000000
--- a/dmyencoding.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define NO_LOCALE_CHARMAP 1
-#include "encoding.c"
diff --git a/dmyext.c b/dmyext.c
index 34ea7a02f4..4d273f7faf 100644
--- a/dmyext.c
+++ b/dmyext.c
@@ -2,8 +2,3 @@ void
 Init_ext(void)
 {
 }
-
-void
-Init_enc(void)
-{
-}
diff --git a/dmyversion.c b/dmyversion.c
deleted file mode 100644
index 279c6ea95a..0000000000
--- a/dmyversion.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define NO_INITIAL_LOAD_PATH 1
-#include "version.c"
diff --git a/doc/ChangeLog-0.06_to_0.52 b/doc/ChangeLog-0.06_to_0.52
new file mode 100644
index 0000000000..63826081b3
--- /dev/null
+++ b/doc/ChangeLog-0.06_to_0.52
@@ -0,0 +1,1147 @@
+Fri Oct 14 13:22:18 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* version 0.52: ……なんてこったい.
+
+	* eval.c(rb_call): returnの処理が間違っていたので, マシンによって
+	  はreturnで関数を終了するだけでなくtoplevelまでつき抜けていた.
+
+	* object.c: Builtinクラスを新設. 組み込み関数をKernelから移した.
+	  nilが組み込み関数を理解するとトラブルの元である.
+
+	* dbm.c: Dictと同様にeachが[key,value]を返すように.
+
+	* version 0.51
+
+Thu Oct 13 12:13:48 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c(SETUP_ARGS): 付加演算子が配列でない時には配列に変換する.
+
+	* parse.y: 括弧なしのメソッド呼び出しでも`*'による付加引数が使える
+	  ようにした. ただし, 通常引数が一つもない場合は乗算演算子と区別が
+	  つかないので, 必ず括弧が必要.
+
+Wed Oct 12 10:09:07 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c(rb_call): キャッシュの計算をinline化. キャッシュミスがあ
+	  れば関数呼び出しでメソッドを検索する. methods.cはなくなった.
+
+	* eval.c(rb_eval): ローカル変数用の領域をalloca()するように変更.
+	  サイズの変更が必要になれば改めてmalloc()するように.
+
+	* parse.y: error recoveryの際にlex_stateを更新しておくように.
+
+Tue Oct 11 17:10:46 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* socket.c(for_fd): ファイル記述子(Fixnum)からソケットインスタンス
+	  を得るメソッド. たとえばinetdから起動されたサーバで標準入出力に
+	  ソケット操作を行なうために使う. つまりSocket.for_fd($stdin)で標
+	  準入力に対応するソケットオブジェクトが得られる.
+
+	* io.c(to_i): IOクラスのインスタンスを整数に変換するとそのファイル
+	  記述子を返すように.
+
+	* numeric.c(num2int): to_iメソッドを使ってできる限り整数に変換する.
+	  以前はnum2fixだけが全てのオブジェクトに対してto_iメソッドを適用
+	  していた.
+
+	* sprintf.c(Fsprintf): 整数表示の際, オブジェクトをできる限り整数
+	  に変換するように(to_iメソッドを使う).
+
+Fri Oct  7 14:06:32 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c(Fcaller): 必要性がよく分からないのでドキュメントから削除.
+	  将来デバッガを作る時に復活させよう.
+
+	* eval.c(rb_call): Cで記述されたメソッド呼び出しでは環境をスタック
+	  にセーブしないことによって高速化.
+
+Wed Oct  5 15:00:58 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* ruby.h: 一時env.hに移動してたQselfの定義を復活. ただし今回は関数
+	  として実現(env.hでは変数として再定義してある).
+
+	* ruby.h: TRUEでsyntax errorにならないよう#undefを追加.
+
+	* eval.c(rb_eval): thread化に挑戦したが, 失敗(速くならなかった).
+	  が, Scopingなどの無駄なコードの削除とメソッド呼び出しの引数セッ
+	  トのinline化で若干の高速化を実現した. 副作用として, argc, argv形
+	  式の関数呼び出しの仕様が変化した(argvにselfを含まなくなった).
+
+	* eval.c(rb_call): メソッド呼び出しの高速化.
+
+Tue Oct  4 11:40:53 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* ruby-mode.el: 修飾子に対応した.
+
+	* parse.y: 多重代入にrestをつけた. この機能を使えばoptional引数の
+	  解析が簡単にできる(はず).
+
+	* pack.c(unpack): uuencode形式のdecodeの際に文字列の長さが間違って
+	  いた.
+
+Mon Oct  3 15:58:41 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* file.c(type): ファイルタイプを文字列で返すメソッド.
+
+Fri Sep 30 11:36:07 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* object.c: デフォルトの真の値である%TRUEの値を1(Fixnum)からtに変
+	  更した. to_sで文字列に変換した時にも`t'と表示される. 更に踏み込
+	  んで`t'を予約語にしてlispのようにしようかとも思ったが, そこまで
+	  は決心できなかった. 一文字のローカル変数はかなり使いそうな気がす
+	  るので….
+
+	* array.c,dict.c: equalを再定義しているクラスで, hashを正しく定義
+	  した.
+
+Wed Sep 28 23:30:28 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* eval.c(Ffail): 今までfailはカーネルクラスのメソッドであったが,
+	  構文に組み込んだ. この変更によって, 1)`fail'は予約語となり, ロー
+	  カル変数に用いることができなくなった. 2)`fail'単体で例外を発生す
+	  るようになった. 3)failはメソッドではなくなったので再定義される可
+	  能性がなくなった.
+
+	* dic.c, dbm.c(indexes): Arrayのindexesと同様の機能を持つメソッド
+	  を追加.
+
+	* array.c(indexes): 引数をインデックスとする要素の配列を返す. 整数
+	  の配列を引数とする時には引数の要素をインデックスとする要素の配列
+	  を返す.
+
+Mon Sep 19 13:42:31 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* array.c(aset): 部分配列に対する代入で配列以外のオブジェクトが指
+	  定された場合に多重代入と同じルールで配列化するようにした.
+
+	* io.c(print): 引数として与えられた各オブジェクトにprint_onメッセー
+	  ジを与えるように. 実行速度は落ちるが柔軟性は増す.
+
+Fri Sep 16 14:59:18 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* glob.c: ワイルドカードの導入. bashに使われているGNUのglobルーチ
+	  ンを流用した.
+
+Mon Sep 12 18:36:58 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y(value_expr): 式がnilの時に対応.
+
+	* class.c: ICLASSのclassが必ずClass/Moduleを指すように.
+
+Tue Sep  6 16:23:28 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* re.c:	正規表現内で「\数字」形式が指定できるように.
+
+	* parse.y:「do expr using var ... end」形式はなくなった. 寂しい気
+	  もする. *BACKWARD INCOMPATIBILITY*
+
+Mon Sep  5 10:59:01 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* numeric.c(next): Numericクラスにもnextを提供.
+
+	* string.c(upto): uptoを提供.
+
+	* range.c(each): nextを使ったインタフェースからuptoを使うように変
+	  更した. この方が一つのメソッドで処理をまとめで行なうことができる.
+
+Fri Sep  2 15:25:39 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* dict.c(each): 戻り値を[key, value]のペアに変更. 今までのeachは
+	  each_valueとして残る. *BACKWARD INCOMPATIBILITY*
+
+Thu Sep  1 10:49:04 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* 成功した(特別な戻り値を持たない)システムコールは`0'を返すように.
+
+Wed Aug 31 00:26:51 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* string.c: チェックサムを得るメソッド`sum'を作った.
+
+	* class.c(include_class_new): ICLASSのclassをもとのクラスにした.
+	  gcの際に元クラスをマークする必要があるのが, フィールドを増やす余
+	  地が無いので, classフィールドを流用した. 私の見積りが間違ってい
+	  て, ICLASSのインスタンスにメッセージを送る事があれば, おかしな動
+	  作をするだろう.
+
+	* eval.c(masign): 式(a,b = nil)の値を[nil]からnilに変更した.
+
+Mon Aug 29 11:56:09 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* class.c: rb_define_mfuncを無くして, メタクラスにモジュールをイン
+	  クルードするようにした.
+
+	* error.c(yyerror): 同じ行で複数のsyntax errorをリポートしないよう
+	  にした.
+
+	* file.c: FileTestモジュールにファイルテストメソッドを分離した.
+
+	* parse.y: 演算子を指定する時のlex_stateを正しく設定した.
+
+Sat Aug 27 01:23:34 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* parse.y: if/whileなどの複合式をprimaryに移動した. これによって例
+	  えば「if cond then a else b end.message()」のような式が書けるよ
+	  うになった.
+
+Fri Aug 26 10:46:30 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* spec: 整理された文法にしたがって書き直した.
+
+	* parse.y: ここ数日で混乱していた文法を整理した. 括弧を省略したメ
+	  ソッド呼び出しができるようになったこと, modifierが付けられるよう
+	  になったこと, returnにリストが渡せるようになったことが主な変更点
+	  である.
+
+	* process周りが怪しいがとにかくSolaris 2.3で動くように.
+
+	* parse.y: 曖昧性がない場合にはメソッド呼び出しの引数の括弧を省略
+	  できるように. 省略できるメソッド呼び出しの条件は, 1)かならず1個
+	  以上の引数を必要とすること, 2)第1引数が`+', `-', `(', `[', `{',
+	  `/'など, 式の始まりに置かれた時と途中に現れた時とで解釈が違う記
+	  号で始まらないこと, である.
+
+Thu Aug 25 13:54:58 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y(cond): 条件式の展開部にbugがあった.
+
+Wed Aug 24 00:01:15 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* parse.y: returnはコンマで区切ったリストも受け取るように. つまり,
+	  return a, b, cはreturn [a, b, c]と同じ意味になる.
+
+	* parse.y: yield以外の大域脱出制御式をexprからexpr0に移した. よっ
+	  てメソッドの引数に制御式を使えなくなる(これで困る人はいないはず).
+
+	* parse.y: `+'の定数展開の際に演算子の優先順位を忘れていた.
+
+	* eval.c: untilの戻り値はnilになった.
+
+	* parse.y: modifierとしてのif/unless/while/untilを追加.
+
+	* parse.y: 文法からendの後ろにつけるキーワードを削除. ほとんど使わ
+	  なかった上に, emacsではruby-modeがあれば対応のチェックが機械的に
+	  出来るため.
+
+Tue Aug 23 18:08:33 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c: スクリプト実行開始前に例外が発生した時にcore dumpした.
+	  組み込み用にコードを変更した時にenbugしてしまった.
+
+Tue Aug 23 00:07:17 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* eval.c: doの戻り値がいつもnilになっていた.
+
+	* parse.y: loop制御変数の多重代入化にbugがあった.
+
+	* parse.y(expand_op): 文字列も畳み込みの対象に.
+
+Mon Aug 22 10:50:01 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y(expand_op): `+'に関しては結合則を使って, より多く定数畳
+	  み込みを行なうように.
+
+	* ruby.c(proc_options): argcが0の時にも対応.
+
+	* parse.y: forなどの制御変数に多重代入も使えるように.
+
+Sat Aug 20 00:59:40 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* parse.y(call_op): 演算子`~'の取り扱いをルール部へ移動.
+
+Fri Aug 19 11:44:13 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* main.c: rubyをほかのプログラムに組み込めるようにmain()を分割した.
+	  それにともない, プログラムの呼び出し構造を修正した.
+
+	* parse.y: 条件式の定義を変更. ifなどの条件式の中でだけ`&&'や`||'
+	  および`!'の引数が条件式になるように. この変更により条件式以外の
+	  場所での `&&', `||', `!'演算子の動作が直観に一致する.
+
+	* parse.y: 実引数の`*'の後に続く引数はexprに制限した. 今までは全て
+	  の文が有効であったが, ここで定義文があってもしょうがない.
+
+Thu Aug 18 10:21:45 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* re.c: 正規表現ルーチンの初期化部分を削除してしまっていた. これで
+	  はemacsの正規表現になってしまう.
+
+	* version.c: copyright表示を追加.
+
+	* version.c: バージョン表示をstderrに.
+
+	* configure.in: gccがない場合testに失敗していた.
+
+Fri Aug 12 14:12:23 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* array.c(astore): 配列の拡大する時にある程度の大きさをまとめて拡
+	  大するように.
+
+	* io.c(Fprint): 配列に対しては一度文字列に変換することなく, 直接内
+	  容を出力するように.
+
+	* string.c(str_new): memmoveからmemcpyへ置き換えた. これでもかなり
+	  速度が違う.
+
+	* ruby.h: データメンバの取り出しで名前を文字列からIDで指定するよう
+	  にした. かなりの高速化になる.
+
+	* io.c: $ARGFという変数で引数列からなる仮想ファイルをオブジェクト
+	  として扱えるようにした. 今まではトップレベルのgets()などを使って
+	  アクセスしていたが, どうもオブジェクト指向的ではなかった.
+
+Thu Aug 11 11:43:15 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* gc.c: mark_location()の間違った呼び出し方の行が残っていた.
+
+	* method.c: プロトタイプ宣言が足りなかった.
+
+Wed Aug 10 15:54:46 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* variable.c: -vオプションが指定されている時は初期化されていない,
+	  大域変数, インスタンス変数, ローカル変数を参照した時点でwarning
+	  を出すようにした.
+
+Tue Aug  9 11:50:48 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* bignum.c: 冪乗に関しても多倍長演算を行なうように. 特に浮動小数点
+	  数の範囲を越えた時の処理を的確に行なうように.
+
+	* eval.c: メソッド定義後は構文木から, メソッド定義部分を外す. 無駄
+	  な再定義が起こらないようにするためと2重にfree()されないため.
+
+	* array.c(Fary_aref): 引数が1つでFixnumの時, Range checkを行なわな
+	  いように修正.
+
+	* eval.c: メソッドの引数の数をコンパイル時に計算して若干の高速化.
+
+Mon Aug  8 13:06:24 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* object.c: nilによる比較連鎖をなくした.
+
+	* parse.y: bit演算子の優先順位を比較演算子よりも強くした.  Cとは異
+	  なることになるが, 直観には合致する.
+
+	* gc.c: クラスを解放する時, 個々のメソッド毎にキャッシュをクリアす
+	  るのではなく, クラス単位でクリアするように.
+
+Thu Aug  4 18:45:09 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* methods.c(method_free): 解放されたメソッドに関してキャッシュをク
+	  リアしておく必要があった.
+
+	* gc.c: Dataクラスのデータ部分をfree()し忘れていた.
+
+Wed Aug  3 09:58:14 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y: def func .. end形式による関数メソッドの定義はなくなった.
+
+	* methods.c: func形式のメソッドをなくした. あっても, あまり意味が
+	  ないので.
+
+	* eval.c: $0への代入でps(1)の出力が変化するように.
+
+	* io.c(Fsyscall): syscall()を実現.
+
+Mon Aug  1 13:41:11 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y: ダブルクォートで囲まれた文字列や正規表現中で"#{変数名}"
+	  または"#変数名"という形式で変数の内容を埋め込むことができるよう
+	  になった.
+
+	* io.c: 関数メソッドsystem2()はなくなった. 今はバッククォートがあ
+	  るからね.
+
+	* parse.y: `cmd`によってコマンドを文字列に展開することができるよう
+	  になった.
+
+	* parse.y: __FILE__, __LINE__を追加. それぞれファイル名(文字列),
+	  行番号(整数)を値とする疑似変数.
+
+Fri Jul 29 13:16:07 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* methods.h: メソッドをオブジェクトとして扱うのをやめる. メソッド
+	  のメモリ管理にはリファレンスカウントを使うことにした. これでオブ
+	  ジェクトの数が減ってほんの少しだけGCが速くなる(かな).
+
+	* purifyによってメモリ関係のバグを検査した(見つかる,見つかる…).
+
+	* gc.c: GCをプログラマが変数をマークする形式から, スタックとレジス
+	  タからマークする方法に変更. 移植性が下がるような気もするが, siod
+	  やscmでも採用されているから多分大丈夫だろう. Linux on i486でも動
+	  作を確認した.
+
+Wed Jul 27 16:13:13 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c(Eval): トップレベルでは構造木をfreeしないように. どうせ解
+	  放されるから時間の無駄である.
+
+	* array.c, dict.c: "=="を構造一致に変更.
+
+Fri Jul 22 10:14:09 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* error.c: 組み込みタイプの名前を登録し忘れていた.
+
+Thu Jul 21 14:06:48 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y(freenode),eval.c(Eval): 解析木を解放し忘れていた.
+
+Mon Jul 18 10:19:15 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y: 多重代入を処理するルールにバグがあって, 3要素以上の多重
+	  代入に失敗していた.
+
+	* eval.c(rb_eval): 多重代入で, 右辺が配列でない時には`to_a'メソッ
+	  ドで配列に変換して代入するようにした. 今までの仕様だと右辺値が第
+	  1要素にそのまま代入されていたが, structなど配列に変換できるもの
+	  は変換した方が嬉しい気がする.
+
+	* dbm.c,dict.c(delete_if): メソッド追加.
+
+	* process.c(wait,waitpid): システムコールwaitpidまたはwait4がある
+	  時はそちらを使うように. configureもそれらをチェックするように変更.
+
+	* dbm.c, dict.c(clear): メソッド追加.
+
+Fri Jul 15 10:54:45 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* array.c(Fary_fill,Fary_clear): メソッドを追加.
+
+	* string.c(Fstr_split): $;の値が長さ1の文字列である時, これを正規
+	  表現化しないで, 単なる文字として分割する.
+
+	* string.c(Fstr_aset/Fstr_aref): インデックスが文字列の範囲外だっ
+	  た時の動作をArrayを参考に修正した.
+
+	* array.c(astore,Fary_aset): 領域をreallocした後, ゼロでクリアする
+	  ように. 今まで配列にゴミが入っていた.
+
+	* array.c: []/[]=でのインデックス関係を整理. 基本的に負のインデッ
+	  クスに代入しない限り例外は起きないように変更した. 必要に応じて適
+	  当に解釈して, 必要ならば領域を拡張するように.
+
+Thu Jul 14 11:18:07 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* autoexec.c: 削除. autoload関係の機能は今後検討しよう.
+
+	* dict.c: 辞書クラスの正式名称をDictに変更した. 別名としてHashを用
+	  意した. 今までDictionaryなどと長い名前にしていたが誰も使っていな
+	  かったしね. *BACKWARD INCOMPATIBILITY*
+
+	* parse.y: Dictを生成する構文を追加. こちらを{..}にした.
+
+	* parse.y: 配列を生成する構文を[..]に変更した. 過去のRubyスクリプ
+	  トとの互換性が保てないが, Dictを生成する構文を導入するに当たり,
+	  perl5に合わせて(意識して), 変更する時期は今しかないと考えた.
+	  *BACKWARD INCOMPATIBILITY*
+
+	* eval.c(Feval): eval()でメソッドを定義する時, 定義されるクラスを
+	  メソッドの所属するクラスにした. 今まではObjectクラスに定義されて
+	  いた.
+
+	* parse.y: ローカル引数がない時のeval()で落ちていた.
+
+Tue Jul 12 09:41:28 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* pack.c: uuencode形式のサポート.
+
+	* `-0'を`-R'に. 出力レコードセパレータをコマンドラインから指定する
+	  方法はなくなった. どうも, 仕様がゆれるなあ.
+
+Mon Jul 11 09:51:24 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* ruby.c: `-r'オプションは`-0'オプションになった. 当面は`-r'も有効
+	  だが変更される可能性がある. `-R'は当面はそのまま.
+
+	* version.c: version表示に日付を含めた.
+
+	* parse.y: private methodの復活. RubyのprivateメソッドはC++におけ
+	  るprotected methodに該当するもので, `@'で始まる名前を持つ.
+
+	* env.h: struct ENVIRONの定義を分離.
+
+	* parse.y: `\$var', `\@var', `%var'も許すように.
+
+	* variable.c(Fdefined): idも引数として受け付けるように.
+
+	* parse.y: if文/unless文にキーワードthenを追加. thenなしというのは,
+	  意外と間違いが多いので. もちろん省略できる.
+
+Sat Jul  9 02:16:04 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* eval.c(rb_eval): class/moduleの評価で新しいスコープを割り当てて
+	  いなかった. スコープ割り当て部分をrb_call()からrb_eval()に移した.
+
+	* eval.c(rb_call): realloc()に渡される事のある, ローカル変数用の領
+	  域をalloca()していた. たまに落ちるわけだ.
+
+	* string.c(Fstr_times): 割り当てた領域を越えた部分を変更していた.
+
+Wed Jul  6 15:52:42 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* socket.c: Socket -> BasicSocket, RawSocket -> Socket に改名.
+
+	* string.c(ucfirst,lcfirst): 最初の1文字だけの大文字/小文字変換.
+
+	* numeric.c(chr): 整数の文字列化メソッド.
+
+	* inits.c, dbm.c: DBMが使えない時はクラスそのものを定義しないよう
+	  にした.  利用できないクラスはnilとすることを今後のポリシーとしよ
+	  う(いままではアクセスした時点でエラーが発生していた). autoexec()
+	  のあり方も検討が必要になりそうだ.
+
+	* bignum.c(bigadd): バグ修正.
+
+Thu Jul  7 11:12:18 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c(Fload,Feval): eval_treeをクリアし忘れていた.
+
+	* _inspect: オブジェクトを可読形式の文字列に変換する(主にデバッグ
+	  出力用).
+
+Wed Jul  6 00:57:18 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* numeric.c, bignum.c: 整数に対する`[]'演算子. nビット目がセットさ
+	  れているかどうかを返す.
+
+Tue Jul  5 12:48:39 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* io.c(Feof): 追加. コマンドラインからなる仮想ファイルについても
+	  EOFが検出できるように.
+
+	* ruby.c: -l/-r/-R/-Xオプションの追加.
+
+	* ruby.c: -n/-pオプションのloopの付加などをメインルーチンに移動し
+	  た. これで, オプションの解析途中で(`-c'オプションのせいで)終了な
+	  どといったことはない.
+
+	* io.c(Fgets): 高速化. 凝ったことをしない方が速かった. 虚しい.
+
+Mon Jul  4 15:55:48 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* Socket:getsockname/getpeername - ようやく仕様が安定した.
+
+	* io.c(Fgets): eachでgetsを記述するのではなく, getsでeachを記述す
+	  るようにした.
+
+Fri Jul  1 10:35:49 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* $ENV[env] = nil/$ENV.delete(env)で環境変数を削除できるようになっ
+	  た. $ENV.deleteは環境変数の以前の値を返す.
+
+	* !~の定義が間違っていた.
+
+	* Dict,DBM:[]= - nilの代入によって要素を削除できるようになった. こ
+	  れにともないnilはDictの要素になれなくなった.
+
+	* ソースの整理. 盲腸のような使われていないコードをなくしたり, 変数
+	  名を付け変えたりした.
+
+Fri Jul  1 00:21:29 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* Array:join() - 要素数0の配列に対して空文字列を返す.
+
+	* RawSocket:open(),socketpair() - 文字列で指定できるドメインとタイ
+	  プをいくつか追加した.
+
+Thu Jun 30 13:51:29 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* -fオプションをなくした. 昔(loadのなかった頃)の名残なので, 今となっ
+	  ては必要ないだろう.
+
+	* -sオプションを追加. perlの-sオプションと同じ動きをする.
+
+	* RawSocketクラスを提供する. Socketに対するシステムコールレベルの
+	  アクセスが可能になった.
+
+Thu Jun 30 00:27:19 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* Socket - bug fixes.
+
+	* linuxではsyscall(SYS_select)が正常に動作しない.
+
+	* Socket:addr,peeraddr - 配列としてsockaddrの情報を返す.
+
+Wed Jun 29 00:14:20 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* Socket:setopt,getopt - setsockopt(2), getsockopt(2)へのアクセス
+	  を実現.
+
+	* sprintf() - rubyにはunsignedは無いので, %uを取り除いた.
+
+	* sprintf() - %b, %x, %oでは2の補数表現, %B, %X, %Oでは符号付き表
+	  現で出力するように. ここ数日でsprintf()の仕様がゆらいでいたが,
+	  これで落ち着きそうだ.
+
+Tue Jun 28 14:42:03 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* Bignum:<<,>> - 2の補数をとる処理を除いた. シフト演算には関係ない
+	  処理だった.
+
+	* Bignum:^ - bug fix. 符合が反対だった.
+
+	* sprintf() - 2進出力子"%b"を追加.
+
+	* sprintf() - %x, %oでFixnumを出力する時, 2の補数表示を行なわない.
+
+	* sprintf() - %x, %oはやはり負の数の時は`-'を出力するように.
+
+Mon Jun 27 14:56:13 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* sprintf() - Bignumについても%d, %oは(2の補数表現に変換して)正の
+	  整数を表示するようにした.
+
+	* Bignumに対する論理演算の定義を修正した. 負の数は2の補数表現であ
+	  るとみなし, かつ仮想的に左側に無限に1が連続しているような演算結
+	  果を得る.
+
+	* Fixnum:<<,>> - 符合付シフトに変更.
+
+	* Bignum:>> - 負の整数のシフトに対応した.
+
+	* __END__, ^D, ^Zでスクリプトを終了できる.
+
+	* -xオプションを追加. #! ..rubyなる行まで読み飛ばす.
+
+	* -cオプションを追加. コンパイルのみを行う.
+
+Sat Jun 25 01:37:21 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* Fixnum:<< - 必要に応じてBignumに拡張して左シフトするように. よっ
+	  て, シフト幅が32を越えるとCやPerlとは違った値を返す.
+
+Fri Jun 24 10:01:28 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* ioctl()/fcntl() - システムコールを呼び出す前にバッファの大きさを
+	  調節するようにした.
+
+	* String:toupper/tolower - 文字列を置き換えたコピーを作るのではな
+	  く, 元の文字列の内容を変更するようにした.
+
+	* inplace editを実現した. perlと同じように`-i'オプションで指定する.
+	  もっとも, こちらはMS-DOSのこととか考えてないけど.
+
+	* デフォルトの出力先を追加した. 今までは$stdoutに代入するしか方法
+	  はなかった.
+
+Fri Jun 17 10:55:08 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* 環境変数にアクセスする方法としてgetenv()/setenv()以外に$ENVを用
+	  意した. $ENVは文字列-文字列の辞書であるかのように動作するEnvDict
+	  オブジェクトが代入されている(eachはassocを与える).
+
+	* nilに代入するとcore dumpした. コンパイル時のチェックを強化.
+
+	* Struct: struct_new()の引数をGCプロテクトする必要がある. せめてス
+	  タック領域だけでもスキャンできるようにしなければいけないんだろう
+	  か? でも, 移植性がなあ.
+
+Fri Jun 17 01:01:46 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* Time::asctime() - 日付のフォーマットで日が落ちていた.
+
+	* Stat: StatはEtcなどと同様にStructで実現したので, Statクラスは無
+	  くなった.
+
+Thu Jun 16 10:32:23 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* bignum.c: いくつかのバグを修正した. Fixnumを渡すべきところで普通
+	  のintを渡していた. 失敗.
+
+	* big2str() - 1桁ずつbaseで割る代わりに, 4桁ずつ割算を行なうように
+	  した. これで多倍長割算の回数が1/4になる. さらに整数->数(文字)へ
+	  の変換をテーブルを用いるようにした.
+
+	* rb_ivar_get_1() - すでに何らかのインスタンス変数を持つオブジェク
+	  トでは, 未定義のインスタンス変数の値が不定値になっていた.
+
+	* yylex() - インスタンス変数の認識に失敗していた. attr()は正しく動
+	  作していたので, 混用すると動作しなかった. 全部違っていたから動い
+	  ていたのね.
+
+	* Object:attr() - すでにアクセスメソッドが定義されている時にはデフォ
+	  ルトのアクセスメソッドを定義しないようにした. もっともアクセスメ
+	  ソッドと同名のメソッドの区別はRubyには存在しないけど, それは仕方
+	  がないよね.
+
+	* pack.c: エンディアンをautoconfで判定するようにしたので, v/Vが使
+	  えるようになった. またntoh?()/hton?()も自前で用意した.
+
+	* Stat: st_rdevをアクセスするメソッドを追加. さらにシステムがstat
+	  構造体にst_blksize, st_blockを持っているかをautoconfでチェックす
+	  るようにした.
+
+	* ドキュメントを少し整備した.
+
+	* INT2FIX()のうち, 31bit幅が保証できないものは, int2inum()に置き換
+	  えた.
+
+Wed Jun 15 10:18:27 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* sprintf() - bignumの出力の時, 出力幅を正しく計算するようにした.
+
+	* str2inum() - baseが0の時, baseを自動判定するように(0xで始まる時
+	  16 進, 0で始まる時8進).
+
+Tue Jun 14 16:08:42 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* gc.c: Bignum型を追加するのを忘れていた. 組み込み型を追加した時に
+	  は必ずmark()とsweep()にその型に関する処理を追加する必要がある.
+
+	* bignum: 割算も動いたような気がする. アルゴリズムを理解していない
+	  ので, 自信がない.
+
+Mon Jun 13 14:36:55 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* まだサポートしていないメソッドなどがあるが, 曲がりなりにもBignum
+	  が使えるようになる. これでioctlも使える.
+
+Fri Jun 10 17:26:42 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* Comparable: 基礎となるメソッドを`=='と`>'から`<=>'に変更した. 今
+	  後Comparableのサブクラスは`<=>'だけを再定義する必要がある.
+
+Wed Jun  8 13:12:18 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* Need_Fixnum()をほとんどなくして, NUM2INT()で直接intに変換するこ
+	  とにした. これで31bitに丸めて桁落ちをおこす問題がなくなる.
+
+Tue Jun  7 09:45:31 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* ruby.h: マクロFIXABLE(n)を追加. ついでにFIXNUM周りの定義を変更し
+	  て, 移植性を高めた(つもり).
+
+	* C++の予約語であるnewを削除した. しかし, もうひとつの予約語である
+	  classに関しては, 置き換える単語が思いつかないこともあってそのま
+	  まになっている.
+
+	* 31bitを越えそうなINT2FIX()を関数呼び出しに変えた. 将来bignumが導
+	  入された時には自動的にbignumを返すようにする.
+
+	* readline() - 引数の`-'は標準入力を意味するようになった.
+
+	* ruby.h: 右シフトが論理シフトか算術シフトかは処理系依存のようなの
+	  で, ruby.hでcppを使ってチェックするようにした. これでうまくいく
+	  と思うのだが, 手元に符合付intを論理シフトする処理系がないので確
+	  認できない. NEWS-OSのCCは確か右シフトはいつも論理シフトだったよ
+	  うな気がするんだけど….
+
+Mon Jun  6 10:10:22 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* FIX2INT()の定義を変更した. どうして昔はうまく動かなかったんだろ
+	  うか? もしかして, 右シフトの符号拡張は処理系依存?
+
+	* FIX2INT()とFIX2UINT()を使い分けるようにした. もっともfixnumは31
+	  ビットしかないので, 本質的な解決にはならないのだが(ioctlが組み込
+	  みたかった).
+
+	* printを関数的メソッドから通常メソッドに変更. 引数が与えられない
+	  時にはレシーバをプリントするようにした. これでprintをメッセージ
+	  形式でも実行できるようになった. 例:
+
+		ruby -e 'readlines().sort.print'
+
+	  上のスクリプトは, 引数として与えられた(あるいは標準入力から読み
+	  込まれた)文字列を各行毎にソートして表示する.
+
+	* eval.c: argc,argvパターンで引数を受けるメソッドに引数が一つも与
+	  えられない時, argvがnilになっていた(argv[0]にアクセスすると落ち
+	  てしまう).
+
+	* _exit()を追加. こちらは例外処理など行なわない.
+
+	* dbmクラス: クラス名称をDBM(大文字)に統一した.
+
+Sat Jun  4 00:51:04 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* ループ変数にも属性や配列要素を指定できるようにした.
+
+Fri Jun  3 09:49:48 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* 多重代入において, 属性代入, 配列要素への代入も行なえるようにした.
+
+	* Need_Fixnum(): nilを0に変換するように.
+
+	* Enumerable:min, max, index, includes - 追加. min, maxは要素が
+	  `<=>'メソッドを持つことを仮定している.
+
+	* Dict/Dbm:length - 要素数を返すメソッド.
+
+	* Dbmクラスにto_aメソッドを追加.
+
+	* Sunにおけるsortの誤動作の件, 昨日の修正でfixされた. しかし, それ
+	  でなぜ動かなかったのかは明らかではないが…. 比較関数がどんな値を
+	  返しても指定した領域外をアクセスするのはバグではないか.
+
+	* ファイルの全内容を読んで, 各行を配列として返すメソッドはpythonを
+	  参考にして`readlines'という名前にした. それにともないgetsに対し
+	  てreadlineという別名を用意した.
+
+Fri Jun  3 00:08:38 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* Array:sort - 判別関数の戻り値はFixnumではなく, Intであるべきだっ
+	  た. 間違い. Sunで動作がおかしかったのはこのせいかも知れない.
+
+Thu Jun  2 11:48:37 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* IO:read_all() - ストリームの最後まで入力して, 各行を要素とする配
+	  列を返すメソッドを追加. また関数メソッド read_all()も追加した.
+  	  これは引数のファイルから読み込んで各行を要素とする配列を返す. 意
+	  味的には
+
+		def read_all()
+	  	  ary = {}
+	  	  while gets()
+		    ary.push($_)
+		  end
+		end
+
+	  とほぼ等価である.
+
+	* String:atoiメソッドを削除. to_aメソッドからaが配列であるとの連想
+	  を呼んで, 混乱を招かないため. 代わりにto_iメソッドを使うこと.
+
+	* 配列への変換メソッドto_aを導入した. 通常のオブジェクトは自分自身
+	  を唯一の要素とする長さ1の配列を返す. 配列は自分自身を, 辞書はキー
+	  と値のペアの配列を返す. Enumeratedをincludeしたクラスは, eachが
+	  返す各要素を含む配列を返す.
+
+	* file.c: 不定個の引数を受けとるメソッド(chmod,chown,utimes)を書き
+	  換えて, 整理した. それに伴い, 最初に全ての引数の型チェックを行な
+	  うようにした. 型チェックに失敗すると処理を行なわずに例外を発生さ
+	  せる.
+
+	* configure.in: 不必要なテストを行なわないように修正した.
+
+Tue May 31 10:41:08 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* String:pack(): 2進数の文字列変換(B,b)で0と1が逆だった.
+
+	* Math.c: 実数系のメソッドに引数として整数が渡された時に自動的に変
+	  換するようにした.
+
+	* toupper(), tolower(): 文字列の判定ミスで変換されていなかった.
+
+	* getopt_long()の仕様によって, スクリプトへの引数がインタプリタの
+	  引数だと解釈されていた. 引数パターン文字列の先頭に`+'を追加.
+
+	* config.hを削除した. DEFINEはMakefileで与えられる.
+
+	* sprintf(): "%d"に文字列が与えられた時にはアドレスではなく内容を
+	  整数に変換するようにした. ついでに浮動小数点数も変換するように変
+	  更した.
+
+	* regexp.c: rubyの拡張正規表現(\d, \D, \s, \S)の処理で割り当てた領
+	  域を越えてバッファに書き込んでいた. 処理前にバッファをきちんと拡
+	  張するようにした. これで昨日問題にしていたメモリの問題は解決でき
+	  たと思う.
+
+	* yylex(): ダブルクォート文字列中でダブルクォートを表現するため
+	  のバックスラッシュ表現ができなかった.
+
+Mon May 30 10:07:42 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* 演算子`!'の右辺も条件式であるとした. これによって, この演算子を
+	  再定義する人は混乱するかも知れないが, 大多数のこの演算子を使う人
+	  は混乱を避けることができると思う.
+
+	* autoconfを使って, 自動的にMakefile, config.hを生成するようにした.
+	  これで, 多くのマシンでは`configure'を実行した後, `make'一発でコ
+	  ンパイルできると思う.
+
+	* clone: サブクラスに対して用いられた場合, 元のオブジェクトと同じ
+	  クラスのインスタンスを返すように(以前はビルトインクラスの場合を
+	  考えてなかった).
+
+	* ビルトインクラスのサブクラスも作れるように, リテラルのあるクラス
+	  にもnewメソッドを追加した.
+
+	* malloc()で落ちる. purifyが必要かも知れない.
+
+	* re.c: rb_global_variable()の呼びだし形式の間違い. 変数へのポイン
+	  タを渡さなければいけない.
+
+	* parse.y: ローカル変数の扱いに引数の評価順に依存する移植性のない
+	  部分があった.
+
+	* attr(): 属性設定のバグを直した. いつ内部仕様が変わったんだろう…?
+
+Sat May 28 23:08:18 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* 正規表現キャッシュの文字列一致判定をポインタ一致から内容一致に変
+	  更した. そういえば文字列リテラルは一回毎に新しくオブジェクトが生
+	  成されるのだった.
+
+Fri May 27 11:42:00 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* trから文字削除(delete), 文字圧縮(squeeze)を分離した. それにとも
+	  ないtrのオプション引数はなくなった.
+
+Thu May 26 10:32:55 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* スクリプト読み込みルーチンを書き直して, 通常ファイル以外のファイ
+	  ル名や空文字列がスクリプトとして与えられた場合に対応した. また,
+	  標準入力からスクリプトを読み込む時に, 一時ファイルが/tmpに残らな
+	  いようにした.
+
+	* Fixnum:id2name - IDから文字列に戻す関数. String:internの逆.
+
+	* Array: 配列の範囲外の要素をアクセスした時に例外を発生させずに,
+	  nilを返すようにした. 配列は自動的に拡張される.
+
+	* string:stripを追加.
+
+	* -nオプションが-eオプションを複数指定した時も動作するように.
+
+	* parse.yで<sys/types.h>もインクルードするようにした.
+
+	* fname周りの細かいbugを修正.
+
+Wed May 26 11:45:10 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* 定数をキャッシュするようにした. 繰り返しが多い場合には有効のはず
+	  だが, 一度しかアクセスしない場合は遅くなるなあ.
+
+Wed May 25 00:42:24 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* 多重代入文(foo, bar = 1, 2)の採用.
+
+	* 条件式部に文字列あるいは正規表現リテラルをおくと`=~'演算子によっ
+	  て`$_'と比較される. 更に`...'の両辺では整数リテラルが`$.'と比較
+	  される.
+
+Mon May 23 23:27:03 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* &式 形式はなくなった. 代わりにkernel:apply(id, args..)を導入.
+
+	* def op () ..形式の導入. opは再定義可能な演算子.
+
+	* constantの代入時チェック. 既に初期化されている定数に代入した場合
+	  は例外が発生する.
+
+	* 多重代入文.
+
+Thu May 19 22:57:07 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* 複合文でもvoid valueのチェックを行うようにした.
+
+	* untilの動作の修正(do..until型だった).
+
+Wed May 18 01:06:25 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* 移植に関する若干の問題を修正.
+
+	* 別名の構文を「def a b」にした.
+
+	* until/unless: 演算子から制御文へ. 例外を捕捉する機能はそのまま.
+
+	* 選択可能な機能をconfig.hからdefines.hに移動.
+
+Fri May 13 23:20:21 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* -yオプションを新設. -dオプションからコンパイラのデバッグ部分を分
+	  離した.
+
+Tue Apr 25 20:17:33 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* マルチバイト文字列を識別子に使えるように. 個人的には使いたくは無
+	  いけどなあ.
+
+	* `-v'フラグの状態を$verboseでアクセスできるように.
+
+	* CVSの導入に伴い, バージョン管理の方法を変更.
+
+	* 真面目にChangeLogをつける事にした.
+
+Tue Mar  8 10:09:25 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* %変数名 によるクラス定数を導入.
+
+	* undef メソッド によるメソッド定義の取り消しを導入.
+
+	* rb_get_method_bodyではthe_envを変更せず, rb_call()で明示的に変更
+	  するように. これでresponds_toなどで環境が破壊されない.
+
+Mon Mar  7 17:46:15 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* 「&文字列」形式. 「式.文字列」型のメッセージセンドはなくなった.
+
+	* 自己代入形式(+=. -=, ...)
+
+	* obj.attr = expr形式の採用.
+
+Thu Feb 24 16:23:28 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* toint, tofloat, print_stringをそれぞれto_i, to_f, to_sに変更.
+
+	* String:clone - Copy on Writeの実現.
+
+Tue Feb 22 11:11:44 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* re.c: マッチした文字列の保存に失敗していた.
+
+	* trap: 可能ならば処理に時間のかかるシステムコール(read, wait,
+	  sigpause, select)をフックして割り込み処理の即答性を高める(DOSな
+	  どでは無理だなあ).
+
+	* trap: 割り込みをその場で処理するか(迅速だが危険), 安全なタイミン
+	  グで処理するかを選択できるように.
+
+Tue Feb 17 11:11:12 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* trap: 割り込みハンドラ.
+
+Wed Feb 16 12:29:12 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* String:crypt: 暗号化ルーチン
+
+	* "::"演算子の追加. a::b は {a, b}と同義. a::b::c は {a, {b, c}}と
+	  同義(右結合). 同義とはいうものの, "::"演算子を使った方が少しだけ
+	  メモリ効率が良い.
+
+	* Dir.rmdir(), File.unlink(), File.utime() -- 各システムコールへの
+	  インタフェース.
+
+	* kill -- kill(2) I/F
+
+	* select(): readのチェックではstdioにバッファリングされているかど
+	  うかをチェックするように.
+
+Tue Feb 15 15:08:31 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* file.c: statをキャッシュするように.
+
+	* File:utime()を追加.
+
+	* unliteralize(): フラグを破壊していた.
+
+	* Bug(): coreを吐くように.
+
+	* String:tr -- tr(1)互換. 引数パターンがちょっと違うけど….
+
+Mon Feb 14 18:24:13 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* unless, untilが例外も偽と見なすように.
+
+	* select() -- select(2) I/F
+
+	* Array:pack, String:unpack: perlのpack/unpackの同等品
+
+Tue Feb  8 17:11:10 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* setenv()のないシステムのためにputenv()を使ったコードも用意した.
+
+Mon Feb  7 09:52:44 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* 引数の一番最後に`*'を置けるようにした. これでrest引数のリストを
+	  操作する必要が少なくなる.
+
+Fri Feb  4 18:23:26 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* ruby-mode.elを書き直す. ずいぶんましになったと思う.
+
+	* 文字列リテラルのCopy on Writeを実現. これで文字列がリテラルであ
+	  るからといっていちいちcloneしなくても済む.
+
+Tue Feb  1 09:21:09 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* sub(), gsub()で, マッチした文字列を$&, $1..$9でアクセスできるよ
+	  うにした. 同時にマッチした部分文字列をコピーしておくように(元の
+	  文字列が変更されても状態を保存するため).
+
+Mon Jan 31 15:16:58 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* プライベートメソッドの仕様を変更. 今までは同じクラスのメソッドか
+	  らしかアクセスできなかったが, サブクラスのメソッドからもアクセス
+	  できるようにした(C++におけるprotected メンバ関数).
+
+	* メソッドサーチのアルゴリズムを改善し, 10%程度の高速化を行なった.
+
+	* 高速化. Cで記述されたメソッドを呼び出す時にはsetjmpを呼ばないよ
+	  うにした. これでCメソッドを多用する場合には3倍程度高速になった.
+
+Fri Jan 28 15:44:04 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* sh-modeを元にruby-mode.elを作る. 演算子で終る, 2行に渡る文には対
+	  応していないけど….
+
+Thu Jan 27 11:35:19 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* freenode(): NODE_NILの解放忘れ.
+
+	* 字句解析部のバグ修正(コメントの後の状態を戻し忘れ).
+
+	* protect .. endのバグ修正. GC_LINKのネストが不正だった.
+
+	* joinのバグ修正(使っているオブジェクトをfreeしていた).
+
+	* splitのバグ修正(アルゴリズムがおかしかった).
+
+	* fork()を追加.
+
+Wed Jan 26 17:09:56 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* ファイルテストメソッドの追加.
+
+	* rb_autoexec(): クラスを初めてアクセスした時の挙動を制御できるよ
+	  うにした. これでautoloadも実現できる. これにともないメソッド
+	  unknownはなくなった.
+
+Tue Jan 25 15:51:36 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* Dbmクラス, Mathモジュールを作成.
+
+	* -Iオプションでサーチパスに追加できるように.
+
+	* サーチパスを変数$load_pathに設定できるように.
+
+	* load(): ダイナミックロードを使えるようにした.
+
+Tue Jan 18 14:14:01 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* Comparable:"<=>"
+
+	* Float,Fixnum:"**"
+
+	* Array:sort
+
+Fri Jan 14 16:53:37 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* version 0.07
+
+	* メソッドに関するドキュメントを充実させた.
+
+	* String:index(): 引数positionを増やした.
+
+Thu Jan 13 15:13:52 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* 未初期化の変数アクセスをなくした.
+
+	* 無駄なhash tableのアロケーションを削除.
+
+	* Purify'd(on Sun)
+
+	* ~RE と ~STRのコンパイル時展開の抑制.
+
+	* Sunへ移植. signal()の戻り値. RDataのbug修正.
+
+	* parse.y: nlsルールを削除.
+
+	* yylex(): 改行と符合の解析部分を変更.
+
+	* missing/strftime.c: 移植用.
+
+	* Time:strftime: その他のメソッドもstrftimeを利用するように.
+
+	* メソッド再定義時にメソッドキャッシュをクリアする.
+
+Fri Jan  7 15:23:20 1994  Yukihiro Matsumoto  (matz at nws119)
+
+	* Float:coerce(): FixnumとFloat以外の引数を与えられるた時には例外
+	  を発生するように.
+
+	* Stat: stat構造体の全てのメンバに対するアクセスメソッドを用意.
+
+	* 未定義のクラス/モジュールへの参照がunknownメソッドを呼び出すよう
+	  にした.
+
+	* baseline - version 0.06.
diff --git a/doc/ChangeLog-0.50_to_0.60 b/doc/ChangeLog-0.50_to_0.60
new file mode 100644
index 0000000000..5f5b03ff40
--- /dev/null
+++ b/doc/ChangeLog-0.50_to_0.60
@@ -0,0 +1,462 @@
+Thu Dec  8 00:32:21 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* io.c($<.file,$<.filename): きちんと初期化．
+
+	* parse.y(rb_class2name): includeしているクラス名を正常に表示でき
+	  なかった．
+
+Wed Dec  7 15:40:36 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* dln.c: config.hをincludeしていなかった．
+
+	* missing/strdup.c: 忘れていた．
+
+Fri Dec  2 15:21:44 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* 関数の命名ルールを変えた(クラスメソッド: Sxxx_xxx，ユーティリティ
+	  メソッドxxx_xxxなど)．
+
+	* re.c(casefold): 個々の正規表現オブジェクトが大文字小文字を無視す
+	  るかどうかを設定できるようにした．
+
+Thu Dec  1 01:44:51 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* missing.c: システムで提供されないファイルの扱いを変更した．
+
+	* io.c($<): 変数`$<'が指しているものを現在読み込み中のファイル名か
+	  ら仮想ファイル($ARGF)に変更した．また，現在読み込み中のファイル
+	  名とファイルオブジェクトにアクセスするメソッドも用意した．
+
+	* ruby.h(data_new): Dataオブジェクトの割り当て方法を改善した．
+
+Wed Nov 30 15:36:13 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* Makefile: ルールを整理した．
+
+Tue Nov 29 00:09:26 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* array.c(`|'): 引数が配列でなく，かつそのオブジェクトが要素として
+	  含まれていない時，そのオブジェクトを追加する．あればなにもしない．
+
+	* process.c(gid,egid): GIDをアクセスするメソッド．
+
+	* io.c(print): 文字列と配列に対する処理を組み込んで若干の高速化を
+	  図った．出力が多い場合に効いてくるようだ．
+
+	* parse.y(parse_string): ""で囲まれた文字列内では対応するエスケー
+	  プがない`\'を残さないように．つまり，今後は"\k" -> "k"である(以
+	  前は"\k"だった)．
+
+Mon Nov 28 18:02:31 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* re.c(re_regsub): 置換文字列の置換えが不完全だった．
+
+	* 一時オブジェクトの解放をすべてGCに任せた．今のままではまずいタイ
+	  ミングでオブジェクトを解放する可能性があった．昔のGCの時にはこれ
+	  でも良かったのだが．
+
+Tue Nov 22 00:15:24 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* eval.c($"): 既にロードしたファイル名の配列．
+
+Mon Nov 21 01:09:50 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* array.c(&,|): 集合としての積演算と和演算．
+
+	* io.c($<): 文字列を代入した時には自動的にopenするように．IOのサブ
+	  クラスかどうかのチェックも行う．
+
+Sun Nov 19 23:02:27 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* eval.c($:): $LOAD_PATHの別名．
+
+	* io.c($>): デフォルト出力先．IO.defaultは無くなった．
+
+	* io.c($<): $FILENAMEの別名
+
+	* glob.c(each): ワイルドカードにマッチするものがない場合，パターン
+	  そのものを与えるように．
+
+	* file.c(chmod,chown,unlink,utime): `\'でワイルドカードをエスケー
+	  プできるように．
+
+Fri Nov 18 00:20:42 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* version 0.55 released
+
+	* file.c(chmod,chown,unlink,utime): 引数として与えられた文字列にワ
+	  イルドカードが含まれている場合にはGlobオブジェクトに変換する.
+
+Wed Nov 16 17:33:48 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* file.c(chmod,chown,unlink,utime): 引数としてワイルドカードも受け
+	  付けるように. その場合はマッチするファイル全体に適用される.
+
+Fri Nov 11 00:07:28 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* string.c(strip): 文字列そのものを変更するように.
+
+	* eval.c(rb_cal): 環境をスタックに積むタイミングが間違っていたので，
+	  不適切なエラーメッセージが出る時があった．
+
+	* eval.c(rb_undefined): メソッドが無い時とメソッドにアクセスできな
+	  い時とでメッセージを替えた．
+
+	* string.c: toupper/tolowerはupcase/downcaseを使って実現．
+
+	* string.c: lcfirst/ucfirstは削除．
+
+Thu Nov 10 16:15:16 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* string.c: sub/gsubは置換後の文字列を返すようにした.
+
+	* string.c: toupper/tolower/lcfirstなどを文字列を変更するものとし
+	  ないものの2 種類を提供するようにした.
+
+Tue Nov  1 17:52:09 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c: 変数展開にバグがあって元の文字列を破壊していた.
+
+Thu Oct 27 09:56:48 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c: rest引数の処理が間違っていた.
+
+	* env.c(rb_yield): ローカル変数の設定が間違っていた.
+
+Wed Oct 26 19:01:43 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c: 引数セットの高速化.
+
+	* process.c: sleepのバグ.
+
+	* parse.y, gnuglob.c: Sunのccでもコンパイルできるように.
+
+Tue Oct 25 00:36:16 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c: 若干の高速化. スタックの処理によってrb_call()が少し遅く
+	  なった分の穴埋めくらいか.
+
+	* eval.c: blockをenvから外すなどしてスタックを軽くした.
+
+Mon Oct 24 11:47:54 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* re.c: 正規表現アクセス用の変数($`, $', $+)を追加.
+
+	* re.c($KANJI): 処理する漢字コードをrubyプログラム内から設定できる
+	  ようにした.
+
+Sat Oct 22 00:42:41 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* eval.c: イテレータ内のredoとretryの処理にバグがあった．
+
+Fri Oct 21 00:53:21 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* string.c(swapcase): 文字列の大文字小文字を置き換える.
+
+	* string.c(ljust,rjust,center): 文字列のレイアウト用メソッド.
+	  sprintf()でも同じようなことはできるが.
+
+	* socket.c(recv,recvfrom): flags引数を省略可能にした. 省略時の値は
+	  0である.
+
+	* socket.c(recvfrom): recvと同様だが, データと相手アドレスのペアを
+	  返す.
+
+	* socket.c(accept): 戻り値をつながったソケットから, ソケットとアド
+	  レスのペアに変更した.
+
+	* eval.c(eval): the_classをセットする時に, last_moduleがincludeさ
+	  れているモジュール(T_ICLASS)であれば, 定義元のモジュールの方をセッ
+	  トするように. この修正がないとICLASSに対してメソッドが呼ばれる可
+	  能性があり, 不審な動作をする(はず).
+
+	* class.c: オブジェクトのcloneの際に特異クラス(特異メソッド用のク
+	  ラス)をきちんとコピーするようにした. 今までは個々のメソッドのコ
+	  ピーを忘れていた.
+
+	* numeric.c: Numericのnewとcloneをundefした.
+
+Thu Oct 20 11:30:00 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* version 0.53 released.
+
+	* parse.y: TopLevelのdef文は関数メソッドを定義するようにした.
+
+	* parse.y: def文のprivate指定はなくなった. export/noexportメソッド
+	  を使ってもらうことにした.
+
+	* parse.y: case文にthenを含むことができるようになった.
+
+Wed Oct 19 13:09:58 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* object.c(export,unexport): 関数メソッドの設定用メソッド.
+
+	* eval.c, class.c: 関数的メソッドを復活させ(またか…), `@'による
+	  privateメソッドをなくした. やはり, 関数的なものは関数的に呼びた
+	  い気がしてきた. こう仕様が変動しててはいけないような気もするなあ.
+	   *BACKWARD INCOMPATIBILITY*
+
+	* eval.c: メソッドの構成を変更し, 別名管理と関数メソッドの管理を分
+	  離した.
+
+	* eval.c: the_env->last_funcをCメソッドの時にも更新する. これがな
+	  いとStructのアクセスが動作しない.
+
+Fri Oct 14 13:22:18 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* version 0.52 released: ……なんてこったい.
+
+	* eval.c(rb_call): returnの処理が間違っていたので, マシンによって
+	  はreturnで関数を終了するだけでなくtoplevelまでつき抜けていた.
+
+	* dbm.c: Dictと同様にeachが[key,value]を返すように.
+
+	* version 0.51 released
+
+Thu Oct 13 12:13:48 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c(SETUP_ARGS): 付加引数が配列でない時には配列に変換する.
+
+	* parse.y: 括弧なしのメソッド呼び出しでも`*'による付加引数が使える
+	  ようにした. ただし, 通常引数が一つもない場合は乗算演算子と区別が
+	  つかないので, 必ず括弧が必要.
+
+Wed Oct 12 10:09:07 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c(rb_call): キャッシュの計算をinline化. キャッシュミスがあ
+	  れば関数呼び出しでメソッドを検索する. methods.cはなくなった.
+
+	* eval.c(rb_eval): ローカル変数用の領域をalloca()するように変更.
+	  サイズの変更が必要になれば改めてmalloc()するように.
+
+	* parse.y: error recoveryの際にlex_stateを更新しておくように.
+
+Tue Oct 11 17:10:46 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* socket.c(for_fd): ファイル記述子(Fixnum)からソケットインスタンス
+	  を得るメソッド. たとえばinetdから起動されたサーバで標準入出力に
+	  ソケット操作を行なうために使う. つまりSocket.for_fd($stdin)で標
+	  準入力に対応するソケットオブジェクトが得られる.
+
+	* io.c(to_i): IOクラスのインスタンスを整数に変換するとそのファイル
+	  記述子を返すように.
+
+	* numeric.c(num2int): to_iメソッドを使ってできる限り整数に変換する.
+	  以前はnum2fixだけが全てのオブジェクトに対してto_iメソッドを適用
+	  していた.
+
+	* sprintf.c(Fsprintf): 整数表示の際, オブジェクトをできる限り整数
+	  に変換するように(to_iメソッドを使う).
+
+Fri Oct  7 14:06:32 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c(Fcaller): 必要性がよく分からないのでドキュメントから削除.
+	  将来デバッガを作る時に復活させよう.
+
+	* eval.c(rb_call): Cで記述されたメソッド呼び出しでは環境をスタック
+	  にセーブしないことによって高速化.
+
+Wed Oct  5 15:00:58 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* ruby.h: 一時env.hに移動してたQselfの定義を復活. ただし今回は関数
+	  として実現(env.hでは変数として再定義してある).
+
+	* ruby.h: TRUEでsyntax errorにならないよう#undefを追加.
+
+	* eval.c(rb_eval): thread化に挑戦したが, 失敗(速くならなかった).
+	  が, Scopingなどの無駄なコードの削除とメソッド呼び出しの引数セッ
+	  トのinline化で若干の高速化を実現した. 副作用として, argc, argv形
+	  式の関数呼び出しの仕様が変化した(argvにselfを含まなくなった).
+
+	* eval.c(rb_call): メソッド呼び出しの高速化.
+
+Tue Oct  4 11:40:53 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* ruby-mode.el: 修飾子に対応した.
+
+	* parse.y: 多重代入にrestをつけた. この機能を使えばoptional引数の
+	  解析が簡単にできる(はず).
+
+	* pack.c(unpack): uuencode形式のdecodeの際に文字列の長さが間違って
+	  いた.
+
+Mon Oct  3 15:58:41 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* file.c(type): ファイルタイプを文字列で返すメソッド.
+
+Fri Sep 30 11:36:07 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* object.c: デフォルトの真の値である%TRUEの値を1(Fixnum)からtに変
+	  更した. to_sで文字列に変換した時にも`t'と表示される. 更に踏み込
+	  んで`t'を予約語にしてlispのようにしようかとも思ったが, そこまで
+	  は決心できなかった. 一文字のローカル変数はかなり使いそうな気がす
+	  るので….
+
+	* array.c,dict.c: equalを再定義しているクラスで, hashを正しく定義
+	  した.
+
+Wed Sep 28 23:30:28 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* eval.c(Ffail): 今までfailはカーネルクラスのメソッドであったが,
+	  構文に組み込んだ. この変更によって, 1)`fail'は予約語となり, ロー
+	  カル変数に用いることができなくなった. 2)`fail'単体で例外を発生す
+	  るようになった. 3)failはメソッドではなくなったので再定義される可
+	  能性がなくなった.
+
+	* dic.c, dbm.c(indexes): Arrayのindexesと同様の機能を持つメソッド
+	  を追加.
+
+	* array.c(indexes): 引数をインデックスとする要素の配列を返す. 整数
+	  の配列を引数とする時には引数の要素をインデックスとする要素の配列
+	  を返す.
+
+Mon Sep 19 13:42:31 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* array.c(aset): 部分配列に対する代入で配列以外のオブジェクトが指
+	  定された場合に多重代入と同じルールで配列化するようにした.
+
+	* io.c(print): 引数として与えられた各オブジェクトにprint_onメッセー
+	  ジを与えるように. 実行速度は落ちるが柔軟性は増す.
+
+Fri Sep 16 14:59:18 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* glob.c: ワイルドカードの導入. bashに使われているGNUのglobルーチ
+	  ンを流用した.
+
+Mon Sep 12 18:36:58 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y(value_expr): 式がnilの時に対応.
+
+	* class.c: ICLASSのclassが必ずClass/Moduleを指すように.
+
+Tue Sep  6 16:23:28 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* re.c:	正規表現内で「\数字」形式が指定できるように.
+
+	* parse.y:「do expr using var ... end」形式はなくなった. 寂しい気
+	  もする. *BACKWARD INCOMPATIBILITY*
+
+Mon Sep  5 10:59:01 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* numeric.c(next): Numericクラスにもnextを提供.
+
+	* string.c(upto): uptoを提供.
+
+	* range.c(each): nextを使ったインタフェースからuptoを使うように変
+	  更した. この方が一つのメソッドで処理をまとめで行なうことができる.
+
+Fri Sep  2 15:25:39 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* dict.c(each): 戻り値を[key, value]のペアに変更. 今までのeachは
+	  each_valueとして残る. *BACKWARD INCOMPATIBILITY*
+
+Thu Sep  1 10:49:04 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* 成功した(特別な戻り値を持たない)システムコールは`0'を返すように.
+
+Wed Aug 31 00:26:51 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* string.c: チェックサムを得るメソッド`sum'を作った.
+
+	* class.c(include_class_new): ICLASSのclassをもとのクラスにした.
+	  gcの際に元クラスをマークする必要があるのが, フィールドを増やす余
+	  地が無いので, classフィールドを流用した. 私の見積りが間違ってい
+	  て, ICLASSのインスタンスにメッセージを送る事があれば, おかしな動
+	  作をするだろう.
+
+	* eval.c(masign): 式(a,b = nil)の値を[nil]からnilに変更した.
+
+Mon Aug 29 11:56:09 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* class.c: rb_define_mfuncを無くして, メタクラスにモジュールをイン
+	  クルードするようにした.
+
+	* error.c(yyerror): 同じ行で複数のsyntax errorをリポートしないよう
+	  にした.
+
+	* file.c: FileTestモジュールにファイルテストメソッドを分離した.
+
+	* parse.y: 演算子を指定する時のlex_stateを正しく設定した.
+
+Sat Aug 27 01:23:34 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* parse.y: if/whileなどの複合式をprimaryに移動した. これによって例
+	  えば「if cond then a else b end.message()」のような式が書けるよ
+	  うになった.
+
+Fri Aug 26 10:46:30 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* spec: 整理された文法にしたがって書き直した.
+
+	* parse.y: ここ数日で混乱していた文法を整理した. 括弧を省略したメ
+	  ソッド呼び出しができるようになったこと, modifierが付けられるよう
+	  になったこと, returnにリストが渡せるようになったことが主な変更点
+	  である.
+
+	* process周りが怪しいがとにかくSolaris 2.3で動くように.
+
+	* parse.y: 曖昧性がない場合にはメソッド呼び出しの引数の括弧を省略
+	  できるように. 省略できるメソッド呼び出しの条件は, 1)かならず1個
+	  以上の引数を必要とすること, 2)第1引数が`+', `-', `(', `[', `{',
+	  `/'など, 式の始まりに置かれた時と途中に現れた時とで解釈が違う記
+	  号で始まらないこと, である.
+
+Thu Aug 25 13:54:58 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y(cond): 条件式の展開部にbugがあった.
+
+Wed Aug 24 00:01:15 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* parse.y: returnはコンマで区切ったリストも受け取るように. つまり,
+	  return a, b, cはreturn [a, b, c]と同じ意味になる.
+
+	* parse.y: yield以外の大域脱出制御式をexprからexpr0に移した. よっ
+	  てメソッドの引数に制御式を使えなくなる(これで困る人はいないはず).
+
+	* parse.y: `+'の定数展開の際に演算子の優先順位を忘れていた.
+
+	* eval.c: untilの戻り値はnilになった.
+
+	* parse.y: modifierとしてのif/unless/while/untilを追加.
+
+	* parse.y: 文法からendの後ろにつけるキーワードを削除. ほとんど使わ
+	  なかった上に, emacsではruby-modeがあれば対応のチェックが機械的に
+	  出来るため.
+
+Tue Aug 23 18:08:33 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c: スクリプト実行開始前に例外が発生した時にcore dumpした.
+	  組み込み用にコードを変更した時にenbugしてしまった.
+
+Tue Aug 23 00:07:17 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* eval.c: doの戻り値がいつもnilになっていた.
+
+	* parse.y: loop制御変数の多重代入化にbugがあった.
+
+	* parse.y(expand_op): 文字列も畳み込みの対象に.
+
+Mon Aug 22 10:50:01 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y(expand_op): `+'に関しては結合則を使って, より多く定数畳
+	  み込みを行なうように.
+
+	* ruby.c(proc_options): argcが0の時にも対応.
+
+	* parse.y: forなどの制御変数に多重代入も使えるように.
+
+Sat Aug 20 00:59:40 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* parse.y(call_op): 演算子`~'の取り扱いをルール部へ移動.
+
+Fri Aug 19 11:44:13 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* main.c: rubyをほかのプログラムに組み込めるようにmain()を分割した.
+	  それにともない, プログラムの呼び出し構造を修正した.
+
+	* parse.y: 条件式の定義を変更. ifなどの条件式の中でだけ`&&'や`||'
+	  および`!'の引数が条件式になるように. この変更により条件式以外の
+	  場所での `&&', `||', `!'演算子の動作が直観に一致する.
+
+	* parse.y: 実引数の`*'の後に続く引数はexprに制限した. 今までは全て
+	  の文が有効
diff --git a/doc/ChangeLog-0.60_to_1.1 b/doc/ChangeLog-0.60_to_1.1
new file mode 100644
index 0000000000..33b0326892
--- /dev/null
+++ b/doc/ChangeLog-0.60_to_1.1
@@ -0,0 +1,3955 @@
+Tue Aug 12 16:02:18 1997  Yukihiro Matsumoto  <matz@netlab.co.jp>
+
+	* variable.c: option variables: $-0, $-p(readonly), $-v,
+	  $-I(load_path), $-a(readonly), $-K, $-d, $-F, $-i, $-l.
+
+	* parse.y (yylex): ignore rd (ruby document) in the code.
+
+Mon Aug 11 12:37:58 1997  Yukihiro Matsumoto  <matz@netlab.co.jp>
+
+	* re.c (Init_Regexp): $-K as alias to the $KCODE.
+
+	* io.c (Init_IO): new virtual variable $-i for the value of -i
+ 	  option.
+
+	* enum.c (Init_Enumerable): include? as alias of member?
+
+Fri Aug  8 11:16:50 1997  Yukihiro Matsumoto  <matz@netlab.co.jp>
+
+	* io.c (io_foreach): now the record separator can be specified.
+
+	* io.c (io_s_readlines): new method to read in whole file (or
+ 	  command output) from path.
+
+	* ext/socket/socket.c (Init_socket): recvfrom did not work.
+
+	* ext/socket/socket.c (sock_send): forgot to check nil for false
+	  value.
+
+Thu Aug  7 11:40:01 1997  Yukihiro Matsumoto  <matz@netlab.co.jp>
+
+	* variable.c (mod_constants): lists constants defiend in the
+	  modules/classes.
+
+	* variable.c (rb_const_set): no longer warns about constant
+	  overriding by subclasses.
+
+	* eval.c (mod_eval): does eval() on module's context. local
+	  variables are shared with outer scope.
+
+	* object.c (Init_Object): remove private_attr/public_attr.
+
+Wed Aug  6 14:21:36 1997  Yukihiro Matsumoto  <matz@netlab.co.jp>
+
+	* object.c (mod_attr): forgot to check nil for false value.
+
+Mon Aug  4 11:50:28 1997  Yukihiro Matsumoto  <matz@netlab.co.jp>
+
+	* object.c (class_s_new): need not to specify names to create
+	  classes (or modules) dynamically.
+
+	* variable.c (rb_class_path): scan class constants for anonymous
+	  classes/modules to make up pathes.
+
+Wed Jul 30 08:45:12 1997  Yukihiro Matsumoto  <matz@netlab.co.jp>
+
+	* eval.c (rb_eval): stop to cache const value in nodes.
+
+Sat Jul 26 03:17:22 1997  WATANABE Hirofumi  <watanabe@ase.ptg.sony.co.jp>
+
+	* numeric.c (flo_to_s): wrong .0 at end.
+
+Sat Jul 26 00:36:36 1997  Yukihiro Matsumoto  <matz@netlab.co.jp>
+
+	* eval.c (error_print): always print exception type in the
+ 	  toplevel exception handler.
+
+	* string.c (str_hash): wrong hash value.
+
+Thu Jul 24 11:05:51 1997  Yukihiro Matsumoto  <matz@netlab.co.jp>
+
+	* string.c (uscore_get): proper error message for unset $_.
+
+Wed Jul 23 09:56:55 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* object.c (obj_methods): returns list of method names of the
+	  specified object.
+
+	* class.c (mod_instance_methods): returns list of method names of
+	  the class instnace.
+
+Fri Jul 11 22:38:55 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* object.c (class_superclass): returns class's superclass
+ 	  itself. (1.1)
+
+	* object.c (obj_type): returns object's class itself. (1.1)
+
+	* class.c (mod_included_modules): list included modules.
+
+	* object.c (class_superclass): raises error for Object.
+
+Thu Jul  3 09:54:02 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (SETUP_ARGS): save source position, remove nd_line().
+
+	* eval.c (rb_call): replace modulo by bit-masking.
+
+	* eval.c (POP_SCOPE): force recycle scope object to reduce gc rate.
+
+	* gc.c (obj_free): aboid calling run_final() when no finalizer is set.
+
+	* eval.c (PUSH_VARS): do not allocate the dynamic scope's end-mark
+	  object.
+
+Wed Jul  2 14:25:07 1997  KIMURA Koichi  <kkimura@pure.cpdc.canon.co.jp>
+
+	* Native mswin32 support.
+
+Tue Jul  1 09:59:00 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970701
+
+	* parse.y (mrhs): allow rest-star(*) in right hand side.
+
+Tue Jun 24 19:04:31 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970624
+
+Sat Jun 20 22:22:51 1997  Michio "Karl" Jinbo  <karl@marcer.nagaokaut.ac.jp>
+
+	* eval.c: freebsd 3.0 <sys/select.h> support.
+
+Fri Jun 20 01:24:45 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970620
+
+	* gc.c: eliminate uninitilalized field of Hash, Array etc., to
+	  avoid dumping core.
+
+Thu Jun 19 01:29:44 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970619
+
+	* string.c (str_split_method): wrong limit.
+
+Sat Jun 14 01:54:16 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* class.c (rb_singleton_class): no singleton for special
+	  constants (now raises exception).
+
+	* eval.c (ruby_init): cbase in TOPLEVEL_BINDING need to be
+	  initialized.
+
+Sat Jun 14 01:01:16 1997  maeda shugo  <shugo@po.aianet.ne.jp>
+
+	* array.c (sort_2): wrong comparison.
+
+Sat Jun 14 00:53:44 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* hash.c (hash_foreach): safe iteration.
+
+Fri Jun 13 14:04:56 1997  Michio "Karl" Jinbo  <karl@marcer.nagaokaut.ac.jp>
+
+	* configure.in: -Bshareable option for netbsd.
+
+Fri Jun 13 01:16:22 1997  WATANABE Hirofumi  <watanabe@ase.ptg.sony.co.jp>
+
+	* io.c (pipe_open): call io_unbuffered() only for writable pipes.
+
+Thu Jun 12 01:14:15 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970612
+
+	* ext/socket/socket.c (sock_new): use io_unbuffered().
+
+	* ext/marshal/marshal.c (w_long): compact long format, which
+	  supports 64 bit architectures (unless longs are >32 bit size).
+
+	* ext/marshal/marshal.c: allows recursive data for marshaling.
+
+	* parse.y (rb_intern): raise exception for non-internable string.
+
+	* ext/marshal/marshal.c (marshal_load): allows direct loading from
+ 	  strings.
+
+	* ext/marshal/marshal.c (marshal_dump): allows direct dump to strings.
+
+	* ext/marshal/marshal.c (marshal_dump): interface changed.
+
+Wed Jun 11 18:26:00 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* gc.c (rb_newobj): remove needless memset().
+
+Mon Jun  9 13:03:43 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (rb_eval): reduce condition checks from while/until loop.
+
+	* eval.c (rb_eval): wrong jump point for `next'.
+
+Fri Jun  6 11:47:39 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ruby.c (ruby_set_argv): initialize dln_argv0 for dln_a_out.
+
+	* ext/socket/socket.c (open_unix): display path name for exceptions.
+
+	* ruby.c (proc_options): option -S did not work well.
+
+Fri May 30 02:14:44 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970530
+
+	* eval.c (eval): set $! properly if exception raised in eval().
+
+	* io.c (io_write): now handles non T_FILE object.
+
+	* io.c (io_defset): $< can be anything which has `write' method.
+
+Thu May 29 15:40:22 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (eval): $@ is always an array (not string).
+
+	* pack.c (pack_unpack): avoid corrupting memory for unexpected
+	  input strings.
+
+Wed May 28 12:46:13 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970528
+
+	* process.c (rb_waitpid): do not block other threads.
+
+Tue May 27 12:02:31 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (ruby_init): split initialize and processing command line
+	  options.
+
+	* ruby.c (ruby_options): ruby_init(0, 0, envp) dumps core.
+
+Tue May 20 18:59:45 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* variable.c (rb_ivar_set): invalid instance variable access for
+	  built-in object raises TypeError.
+
+Fri May 16 17:32:21 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970516
+
+	* dir.c (push_globs): was freeing non heap pointer.
+
+	* gc.c: remove some duplicated prototypes.
+
+	* ext/kconv/kconv.c: fix prototypes.
+
+Fri May  9 11:38:59 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970509
+
+	* gc.c (obj_free): avoid free(NULL).
+
+	* eval.c (rb_check_safe_str): argument missing for TypeError().
+
+Thu May  8 01:14:28 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* file.c (file_s_dirname): need to return "." for path without
+	  slashes.
+
+Wed May  7 19:18:48 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* process.c (f_fork): child processe does not inherit parent's
+ 	  itimer setting on linux.  call setitimer() again in the child
+	  process.
+
+Sat May  3 02:49:43 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ext/curses/curses.c: modified for portability and add to the
+ 	  standard distribution.
+
+Wed Apr 30 00:34:00 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* file.c (file_s_size): returns 0 for empty files (not FALSE).
+
+Fri Apr 25 02:17:50 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970425
+
+	* eval.c (f_load): free unused name-table.
+
+	* eval.c (f_load): copy local variable name-table.
+
+	* gc.c (obj_free): avoid free(NULL).
+
+	* eval.c (rb_eval): forgot to make link from the scope object to
+	  NODE_SCOPE.  It may crash the interpreter.
+
+Thu Apr 24 00:35:09 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* random.c (f_srand): save old seed anyway.  srand() returns no
+ 	  value on some systems.
+
+	* gc.c (obj_free): avoid double free of the local variable name
+	  table.
+
+	* parse.y (top_local_setup): modify realloc to handle offset.
+
+Tue Apr 22 12:58:26 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970422
+
+Thu Apr 17 00:40:51 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* configure.in (rb_cv_bsdpgrp): proper check for BSD
+	  setpgrp/setpgrp.
+
+Wed Apr 16 16:14:02 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (proc_call): proc called in other thread must be orphan.
+
+Tue Apr 15 10:46:31 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970415
+
+	* gc.c (obj_free): NODE_SCOPE marked from SCOPE object.
+
+	* gc.c (gc_mark): some nodes marked wrong.
+
+	* process.c (proc_getpgrp): wrong argument
+
+Fri Apr 14 18:32:42 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970414
+
+Fri Apr 12 01:20:12 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ruby.h: String pointer changed to unsigned char.
+
+Fri Apr 11 10:27:29 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970411
+
+	* Makefile.in: create libruby.a before linking ruby.
+
+	* string.c (str_strip_bang): >0x80 characters for isspace().
+
+	* eval.c (proc_call): set safe-level temporally
+
+	* eval.c (proc_s_new): save safe-level in the proc context.
+
+	* eval.c (rb_eval): no class/module extension in safe mode.
+
+Thu Apr 10 02:10:41 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* gc.c (gc_mark): remove some pointer checks for speeding up.
+
+	* ruby.c (ruby_options): set $0 temporally for -r option.
+
+	* eval.c: built-in security feature.
+
+	* gc.c (gc_sweep): do not free nodes during compile.
+
+	* parse.y (yycompile): set flag when compiling.
+
+Wed Apr  9 10:19:02 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ruby.c: forgot to include <ctype.h> for isspace().
+
+	* file.c: provide S_ISREG for some platforms.
+
+	* io.c (Init_IO): added some $< operations.
+
+	* lib/ping.rb: check host upness using TCP echo.
+
+Tue Apr  8 00:10:15 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* io.c (arg_read): bug with 0 length input.
+
+Mon Apr  7 11:36:16 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ext/fcntl/fcntl.c: module for fcntl constants.
+
+	* eval.c (rb_alias): bug when original was an alias.
+
+	* parse.y (primary): syntax to access singleton class.
+
+	* eval.c (mod_public_method): method's to specify visibitily of
+	  the class methods.  make_method_{public,private} removed.
+
+Fri Apr  4 21:43:57 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970404
+
+	* gc.c (obj_free): finalizer added for experiment.
+
+Thu Apr  3 02:12:31 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (thread_schedule): make Fatal rise on main_thread on
+	  deadlocks.
+
+	* eval.c (thread_join): raise ThreadError instead of Fatal, in
+	  case of deadlock.
+
+	* regex.c (re_compile_fastmap): uninitialized local variable.
+
+	* parse.y (parse_regx): new option //[nes] to specify character
+	  code for regexp literals.  Last specified code option is valid.
+
+	* re.c (reg_s_new): additional 3rd argument to specify compiled
+ 	  regexp's character code.
+
+	* re.c (reg_new_1): regexp character code can be specified for
+	  each regexp object.
+
+Wed Apr  2 14:51:06 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (thread_create): handle uncaught throw.
+
+	* eval.c (thread_create): halt on some deadlock conditions.
+
+	* regex.c (is_in_list): wrong result for non-mbc higher-byte
+	  characters.
+
+	* regex.c (re_match): wrong skip for multi-byte characters.
+
+	* regex.c (re_compile_fastmap): wrong fastmap in non-mbc mode.
+
+	* hash.c (Init_Hash): hash compatible features added to ENV.
+
+Tue Apr  1 15:24:06 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (obj_extend): remove Object#extend as an iterator which
+ 	  is in experimental state, since it unveils internal singleton
+ 	  classes.
+
+Mon Mar 31 14:29:39 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970331
+
+Sun Mar 30 19:40:57 1997  WATANABE Hirofumi  <watanabe@ase.ptg.sony.co.jp>
+
+	* parse.y (terms): avoided win32 gcc's optimization bug.
+
+Sat Mar 29 11:21:58 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* struct.c (make_struct): St[val,..] creates new structure.
+
+Fri Mar 28 11:24:51 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (obj_make_private): new method make_method_{public,private}
+	  to change visibility of singleton methods.
+
+	* regex.c (re_compile_pattern): enables numeric literal >= 0x80 in
+	  the character class.
+
+	* regex.c (re_compile_pattern): enabled numeric literal >= 0x80,
+	  in multibyte mode.
+
+	* regex.c (re_compile_fastmap): modified exantn and charset(_not)
+	  to set fastmap for higher bytes properly.
+
+	* regex.c (is_in_list): now matches numeric literals.
+
+Thu Mar 27 13:34:20 1997  WATANABE Hirofumi  <watanabe@ase.ptg.sony.co.jp>
+
+	* pack.c (pack_unpack): extra null byte after unpacked string.
+
+Wed Mar 26 15:20:34 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* regex.c (re_compile_pattern): register numbers must be fit in a
+ 	  byte (0 <= regnum <= 0xff).
+
+	* regex.c (re_compile_fastmap): forgot to set mbchar map for
+ 	  charset_not if RE_MBCTYPE is on.
+
+	* regex.c (re_compile_pattern): set list bits for multi-byte
+	  characters for \W, \S, \D in range expression.
+
+	* object.c (obj_is_kind_of): defined that nil itself is kind of
+ 	  nil.  TRUE is kind of TRUE, FALSE is kind of FALSE likewise.
+  	  This change makes `obj.kind_of?(eval(obj.type))' always true.
+
+Tue Mar 25 14:08:43 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* lib/English.rb: provides nicer English alias for the variables.
+
+	* parse.y (expr): alias $var1 $var2 makes alias of the global
+	  variable.
+
+Mon Mar 24 18:23:20 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970324
+
+Thu Mar 20 22:04:59 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (mod_modfunc): forget to clear method cache.
+
+Wed Mar 19 17:06:55 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (program): set methods' default private/public status
+	  correctly under eval().
+
+	* eval.c (eval): set the_class correctly while evaluating string.
+
+Tue Mar 18 12:23:53 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (eval): yield can be called from eval().
+
+	* version 1.0-970318
+
+	* parse.y (program): regexp in condition expression should do
+	  matching operation with $_.
+
+	* re.c (reg_regsub): wrong substitution.
+
+Fri Mar 14 14:36:28 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* hash.c (hash_invert): returns value to key mapping of the
+	  associative array.
+
+	* ext/socket/extconf.rb: set environment variable SOCKS_SERVER to
+	  compile with libsocks.a.
+
+	* ext/socket/socket.c (socks_s_open): SOCKSsocket class to access
+	  internet via SOCKS library.
+
+	* sprintf.c (f_sprintf): unsigned formats display leading double
+ 	  dots for imaginary sequence of signed bit to the left.
+
+	* sprintf.c (f_sprintf): correct width and precision formatting
+	  for big integers.
+
+	* parse.y (yylex): enables negative hex/octal numbers and `_' in
+	  non-decimal numbers.
+
+	* sprintf.c (f_sprintf): %u added for unsigned decimal format.
+
+Thu Mar 13 10:24:27 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* sprintf.c (f_sprintf): wrong output for bignums.
+
+	* array.c (ary_reverse_each): iterates in reverse order.
+
+	* pack.c (pack_unpack): L unpacked signed long.
+
+	* io.c (f_backquote): now returns an empty string for no output.
+
+Wed Mar 12 10:20:30 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ext/socks/socks.c: socket module with socks library.
+
+Mon Mar 10 20:44:22 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* re.c (reg_regsub): \& for substitution.  \`, \', and \+ are
+	  avaiable also.
+
+Thu Mar  6 01:47:03 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970306
+
+	* sample/rubydb.el (gud): ruby debugger emacs interface
+
+	* lib/debug.rb: ruby debugger
+
+	* parse.y (exprs): more accurate line number display.
+
+Wed Mar  5 21:31:46 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970305
+
+Tue Mar  4 12:28:32 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ruby.c (proc_options): search through RUBYPATH and PATH for
+	  option -S.
+
+Mon Mar  3 22:44:55 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (thread_status): returns nil for exception terminated
+	  threads.
+
+	* eval.c (thread_value): re-raise exceptions.
+
+Sat Mar  1 00:59:47 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (rb_eval): restore $! value after rescue clause, to
+	  re-raise exceptions correctly.
+
+Fri Feb 28 16:43:38 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970228
+
+Thu Feb 27 11:23:41 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (rb_yield_0): redo raises exception
+
+	* eval.c (thread_schedule): bug in interrupt handling by rescue.
+
+Wed Feb 26 00:55:36 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (eval): forgot to restore dynamic local variable
+	  bindings.
+
+Tue Feb 25 11:22:08 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ext/aix_ld.rb: AIX dynamic load support (not tested).
+
+	* eval.c (rb_eval): wrong return value for defined? super.
+
+	* error.c (exception): more error check.
+
+	* re.c (reg_regsub): wrong substitution when sub expanded to null
+ 	  string.
+
+Fri Feb 21 13:01:47 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970221
+
+	* eval.c (f_require): volatile added.  register variable was
+ 	  recycled, so that GC did not mark that variable.
+
+	* object.c (Init_Object): forget to mark main object (was mostly
+	  ok, but made trouble with early GC.)
+
+Thu Feb 20 11:50:50 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970220
+
+Thu Feb 20 11:25:50 1997  Yasuo OHBA  <jammy@shljapan.co.jp>
+
+	* lib/date.rb: update
+
+Thu Feb 20 08:25:57 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (yylex): forgot tokfix() before rb_intern().
+
+	* lib/tk.rb (TkVariable): give up using trace_var.
+
+Wed Feb 19 00:24:35 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970219
+
+	* pack.c (pack_pack): packed by null for A specifier. must be
+	  space filled.
+
+	* pack.c (pack_unpack): bug in skipping spaces
+
+	* gc.c (xmalloc): garbage collect for every 4 Meg. allocation.
+
+	* string.c (str_split_method): limit worked wrong way.
+
+	* io.c (io_gets_method): misunderstand 0xff in binary files when
+	  $/ == nil.
+
+	* re.c (reg_regsub): re-implement.
+
+	* ext/socket/socket.c (thread_connect): remove O_NONBLOCK, which
+	  is not defined on some platform like NeXT.
+
+Mon Feb 17 13:08:30 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970217
+
+	* object.c (mod_eqq): === extended for subclass check (to use case
+	  as typecase).
+
+Sat Feb 15 02:07:22 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* regex.c (re_compile_pattern): wrong match backref at end of pattern.
+
+	* io.c (arg_read): now works beyond end of file.
+
+Thu Feb 13 16:21:24 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (expr): return/yield now accept normal argument format.
+
+	* parse.y (yylex): a star in `yield *x' must not be multiplication
+	  operator.
+
+Wed Feb 12 15:06:44 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* time.c (time_plus): bug in simple addition.
+
+	* eval.c (thread_raise): raise exceptions from outside.
+
+	* eval.c (Init_Thread): Thread#alive? -- alias for Thread#status.
+
+Mon Feb 10 00:38:55 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ruby.h (Data_Make_Struct): rename macros.
+
+Sun Feb  8 11:48:13 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* io.c (f_syscall): argument offset was wrong.
+
+Fri Feb  7 18:01:17 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970207
+
+	* eval.c: add volatiles to avoid variable crobbering by longjmp().
+
+	* eval.c (f_raise): 1st argument can be the GlobalExit object now.
+
+	* array.c (ary_unshift): no longer accept more than 2 args.
+
+	* eval.c (f_raise): bug if 2nd argument is the exception.
+
+Tue Feb  4 00:37:29 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970204
+
+	* eval.c (eval): check compile errors by nerrs.
+
+	* eval.c (rb_eval): check syntax error by nerrs, not by the return
+ 	  value, which may be NULL.
+
+	* eval.c (compile): Do not clear errinfo.
+
+Mon Feb  3 10:13:06 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (obj_extend): move real inclusion to Module#extend_object
+	  to allow redfinition.
+
+	* object.c (Init_Object): Kernel class is now Module. Object class
+	  became the true root class.
+
+	* object.c (obj_inspect): remove useless buffer.
+
+	* hash.c (any_cmp): disable interrupts and context switching.
+
+	* st.c: remove ALLOW_INTS to disable interrupt during operations.
+
+Fri Jan 31 22:10:08 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* hash.c (hash_rehash): re-register all key-value.
+
+Thu Jan 30 02:14:49 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* io.c (io_reopen): re-implement according to clone() way.
+
+	* io.c (io_clone): copy IO object.
+
+	* struct.c (struct_eql): compare elements by eql?.
+
+	* io.c (io_mode_flags): detect "rb", "wb" etc.
+
+	* io.h (FMODE_BINMODE): added.
+
+	* ext/socket/socket.c (Init_socket): undef BasicSocket.new
+
+	* file.c (Init_File): File.new(path[,mode])
+
+	* io.c (Init_IO): IO.new(fd[,mode])
+
+	* eval.c (rb_method_boundp): forgot to enable priv argument.
+
+	* object.c (Init_Object): remove `=~' from Kernel class.
+
+	* ext/socket/socket.c (open_inet): initialize sockaddr before
+	  calling bind(2).
+
+	* sample/ruby-mode.el (ruby-calculate-indent): skip comment lines
+
+Wed Jan 29 18:43:22 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (Init_Thread): DEFER_INTS during initializing threads.
+
+	* hash.c (Init_Hash): Hash#eql? checks for object identity.
+
+	* eval.c (thread_set_critical): wrong value assigned.
+
+Mon Jan 27 16:10:51 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* io.c (io_print): remove print_on().
+
+	* eval.c (f_missing): proper error message for undefined method
+	  without argument
+
+Sat Jan 25 23:32:32 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* string.c (str_sub_s): false alert - sub() does not modify string.
+
+	* array.c (ary_times): negative multiplication detected
+
+	* string.c (str_times): negative multiplication detected
+
+Fri Jan 24 10:51:39 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* time.c (time_arg): month -> 0 == "jan" == "1" == "01", little bit
+	  confusing but wanted to conform japanese style.
+
+	* version 1.0-970124
+
+Fri Jan 24 09:52:49 1997  WATANABE Hirofumi  <watanabe@ase.ptg.sony.co.jp>
+
+	* util.c (_fixpath): supports SJIS filenames on DJGPP.
+
+Thu Jan 23 16:52:06 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* README.EXT: update. partially translated into English.
+
+	* ext/extmk.rb.in: inherit $LDFLAGS to the final link.
+
+	* ext/socket/socket.c (Init_socket): add various constants.
+
+Mon Jan 23 11:40:59 1997  WATANABE Hirofumi  <watanabe@ase.ptg.sony.co.jp>
+
+	* eval.c (Init_Thread): allocate main_thread first to avoid crash.
+
+Thu Jan 23 02:09:26 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* gc.c (ObjectSpace): API modified. each_object method will do all
+ 	  the iteration.
+
+	* eval.c (proc_call): wrong return from nested lambda.
+
+	* ext/GD/GD.c: debugged.
+
+Wed Jan 22 16:12:25 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970122
+
+	* gc.c (gc_mark): forgot to mark match->str.
+
+	* ext/GD/GD.c: GD interface module.
+
+	* eval.c (PUSH_BLOCK): wrong value pushed as the block level.
+
+Mon Jan 20 14:01:31 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (thread_run): no context switch in the critical section.
+
+Mon Jan 20 09:40:59 1997  WATANABE Hirofumi  <watanabe@ase.ptg.sony.co.jp>
+
+	* utils.c: supports 8+3 filenames
+
+Sat Jan 18 01:23:03 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970118
+
+	* regex.c (PATFETCH): need cast to unsigned char.
+
+	* io.c (io_ctl): bug in case when arg is not a string.
+
+	* lib/tk.rb: forgot that Kernel#type returns the class name now.
+
+	* regex.c (re_search): "abc\n" =~ "^$" should not match.
+
+Fri Jan 17 12:31:37 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970117
+
+	* ruby.c (ruby_options): constant PLATFORM, which is in the {cpu}-{os}
+	  form, defined.
+
+	* configure.in: platform information embedded in the interpreter.
+
+	* regex.c (re_search): /^$/ did not match to "" by wrong exit condition.
+
+	* lib/thread.rb: re-write Mutex/Queue based on Thread.critical.
+
+	* eval.c (thread_set_critical): remove Thread.exclusive, add
+	  Thread.critical = TRUE/FALSE instead.
+
+	* re.c (reg_search): re-compile pattern if needed
+
+	* regex.c (PATFETCH): do translate at compile time
+
+Thu Jan 16 00:49:10 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* gc.c (gc_mark_frame): forgot to mark frame->cbase.
+
+	* regex.c (re_compile_pattern): /a$|b)/ causes error.
+
+	* regex.c (re_compile_pattern): /(^|b)/ causes error.
+
+	* version 1.0-970116
+
+	* re.c (Init_Regexp): set RE_CONTEXTUAL_INVALID_OPS flag.
+
+Tue Jan 14 02:09:06 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (proc_call): Proc#callをイテレータとして呼んだ時に対応
+
+	* configure.in: nextstep対応？
+
+	* eval.c (rb_eval): a[b]=cで無駄な配列を割り当てない
+
+	* eval.c (f_send): イテレータとして呼ばれたらイテレータとしてメソッ
+	  ドを呼ぶ．
+
+	* string.c (str_new4): match共有用の生成関数
+
+	* re.c (reg_search): matchの実体(文字列)をマッチを行った文字列と
+	  copy-on-writeで共有
+
+	* string.c (str_hash): toupperをかける条件が違っていた
+
+	* array.c (sort_2): FixnumとStringを特別扱いして高速化
+
+Mon Jan 13 11:03:53 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (thread_create): threadが生成されるまで割込みを設定しない
+
+	* eval.c (Init_Thread): 割込みタイミングを100msecに
+
+Sat Jan 11 00:17:05 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* regex.c (re_search): マッチに失敗する場合があった(本当に直ったか？)
+
+	* io.c (io_ioctl,io_fcntl): 第2引数を省略可能に
+
+	* io.c (io_ioctl,io_fcntl): 戻り値がIOだった．整数(システムコール
+	  の戻り値)を返すようにした．
+
+	* io.c (io_ctl): 引数が整数の時に対応
+
+	* io.c (io_fcntl): file.cから移動
+
+Fri Jan 10 17:01:47 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-970110
+
+	* ext/socket/socket.c (thread_connect): open(connect(2))で他の
+	  threadをブロックしないように
+
+	* eval.c (thread_create): exitでないときにexitだと思い込む
+
+Mon Jan  6 17:42:22 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* string.c (str_sub_s): 文字列長より長いoffsetの検出
+
+	* regex.c (re_search): 空にマッチするパターン後の$で失敗
+
+Thu Jan  2 16:36:23 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* file.c (file_reopen): Fileのreopen(pathまたはIOで指定)．
+
+	* io.c (io_reopen): IOのreopen(IOで指定) -- change classつき
+
+Wed Jan  1 11:09:01 1997  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* io.c (f_select): timeoutでnilを返す
+
+Fri Dec 27 13:06:44 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* file.c (file_s_open): サブクラスではそのクラスのインスタンスを返
+	  すように．
+
+Fri Dec 27 08:58:27 1996  <ono@isl.nara.sharp.co.jp>
+
+	* numeric.c (flo_to_s): index()を使わない．strstr()に．
+
+Thu Dec 26 01:34:17 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* lib/tk.rb: placeが使えるように
+
+	* pack.c (endian): マクロDYNAMIC_ENDIANを指定すると実行時にendian
+	  を判定するように．
+
+	* eval.c (thread_alloc): 初期化忘れのメンバがあった．
+
+Wed Dec 25 00:33:19 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 1.0-961225
+
+	* io.c (Init_IO): newを無効化
+
+	* lib/tkthcore.rb: tk_call "global $foo; set foo 5"などもできるように
+
+	* eval.c (thread_restore_context): $~, $_でスタックを壊していた
+
+	* process.c (rb_waitpid): threadに一応対応
+
+Tue Dec 24 15:20:58 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.4-961224
+
+	* configure.in: charがunsignedかどうかもチェック
+
+	* regex.c (SIGN_EXTEND_CHAR): __CHAR_UNSIGNED__にも対応
+
+	* pack.c (pack_unpack): 明示的にsigned charを指定．
+
+Mon Dec 23 14:41:23 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ruby.c (load_file): 標準入力からのスクリプトで一時ファイルを使わ
+	  ないように
+
+	* object.c (f_integer): `0x', `0'などでbaseを解釈するように．
+
+Fri Dec 20 01:44:39 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* Makefile.in (flock.o): flockに対応
+
+Thu Dec 19 20:13:32 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.4-961219
+
+Wed Dec 18 00:06:48 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* glob.c (glob_filename): strrchrがマクロの場合に対応
+
+	* configure.in: <sys/select.h>をチェック
+
+	* ext/kconv/kconv.c: 1.62ベースに
+
+	* ext/kconv/kconv.c: Kconvモジュール
+
+	* string.c (str_substr): lenが元の文字列より長い時に対応
+
+	* parse.y (iterator): 「$bar do .. end」などは許さないように
+
+	* parse.y (iterator): FID(foo!,foo?)をdo形式のイテレータにできる．
+
+	* missing/flock.c (flock): lockf()を使って代替
+
+	* file.c (file_flock): flockを実装
+
+Tue Dec 17 12:13:38 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.4-961217
+
+Fri Dec 13 02:05:03 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* configure.in: RUBYLIBのカレントを後回し(@mix/awk offline)
+
+	* dln.c: AIXに対応した？(@mix/awk offline)
+
+	* eval.c (thread_schedule): critical sectionでも明示的なコンテキス
+	  トスイッチは起きないとまずい
+
+	* re.c (reg_search): matchに失敗した時に$~をnilに．
+
+	* re.c (reg_search): 毎回matchを生成するように
+
+Thu Dec 12 17:03:30 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* numeric.c (flo_to_s): 2.0.to_s -> 2.0に
+
+	* eval.c (thread_save_context): $_, $~をthread毎に保存
+
+	* eval.c (thread_kill): main threadではexit(0)
+
+	* string.c (str_split_method): 間違った結果を返していた
+
+Thu Dec 12 15:32:48 1996  WATANABE Hirofumi  <watanabe@ase.ptg.sony.co.jp>
+
+	* dir.c: CYGWIN32対応
+
+	* ext/socket/socket.c: CYGWIN32対応
+
+	* io.c: CYGWIN32対応
+
+Thu Dec 12 14:43:51 1996  Jun Kuroda  <j_kuro@pluto.ai.kutech.ac.jp>
+
+	* lib/tk.rb: wish4.2も探索候補に含める
+
+	* config.guess: JCC対応
+
+Thu Dec 12 00:41:17 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.4-961212
+
+	* parse.y (parse_string): """..."""はやはり無くすことにした
+
+	* parse.y (parse_regx): %r|...|でterminatorを \ でエスケープできる
+	  ように
+
+	* signal.c (posix_signal): sigactionを使うsignal
+
+	* configure.in: posix signal/bsd signalの検出
+
+Wed Dec 11 17:47:35 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (thread_schedule): critical sectionではコンテキストスイッ
+	  チが起きないように
+
+	* lib/thread.rb: SharedMutexクラス
+
+	* lib/jcode.rb: String#scanを使うように
+
+Tue Dec 10 12:21:28 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.3-961210
+
+	* string.c (str_split_method): 正規表現に()を含む時にバグ
+
+	* lib/jcode.rb: ちょっとましになった
+
+	* string.c (tr_setup_table): 置換文字が短すぎる(2文字)のときのバグ
+
+Mon Dec  9 11:38:04 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* string.c (str_scan): 文字列のマッチを行う．イテレータとしても動
+	  作する
+
+	* regex.c (re_copy_registers): allocatedが初期化されていなかった
+
+	* re.c (match_to_s): $~の文字列化
+
+	* re.c (match_to_a): $~を配列化できるように
+
+	* re.c (match_getter): レジスタが初期化されていなかった
+
+Thu Dec  5 11:06:10 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* string.c (str_split_method): マッチしなかった括弧は空文字列を
+	  pushするべきではない
+
+	* string.c (str_succ): アルファベットを含まない文字に対応
+
+Wed Dec  4 10:48:09 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.3-961204
+
+	* io.c (io_binmode): DJGPPでのbinmode対応
+
+	* sprintf.c (f_sprintf): intの範囲の数値は直接sprintfで変換する
+
+	* sprintf.c (f_sprintf): "%02s"に頼らない
+
+	* re.c (reg_search): indexでSEGV
+
+Tue Dec  3 10:09:36 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.3-961203
+
+	* ext/extmk.rb.in (install): INSTALL_DATAからINSTALLに変更
+
+	* dln.c: hpux対応
+
+	* string.c (str_aset_method): 負の値を含む範囲でも例外を起こさない
+
+	* array.c (ary_replace): 負の値を含む範囲でも例外を起こさない
+
+	* array.c (beg_len): beg==endの時，長さ0に
+
+Mon Dec  2 14:07:12 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* configure.in: HP shl対応
+
+	* string.c (str_upto): beg > endの時無限ループに落ちるのを止めた
+
+	* range.c (range_each): String#uptoが再定義された場合に対応
+
+	* string.c (str_split_method): "ABC".split(/(B)/)が誤動作
+
+Sat Nov 30 01:43:52 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (rb_eval): undefでSEGV
+
+Fri Nov 29 12:17:59 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* sample/ruby-mode.el (ruby-parse-region): %Q#..#などに対応．しか
+	  し，区切り文字が演算子で行末にある場合には対応できなかった．
+
+	* re.c (reg_raise): 例外でもスラッシュをエスケープ
+
+	* re.c (reg_inspect): スラッシュをエスケープ
+
+	* parse.y (parse_string): `%[QqXxRr](.)..\1'なる文字列形式(テスト
+	  採用)
+
+	* parse.y (parse_qstring): '''...'''の形式
+
+	* ext/dbm/dbm.c (Init_dbm): 述語key?,value?の追加
+
+	* ext/dbm/dbm.c (Init_dbm): includes->include?
+
+	* hash.c (Init_Hash): 述語key?,value?,include?の追加
+
+	* eval.c (rb_eval): unlessでelse節が実行されない(うーん)
+
+	* string.c (str_sub_iter_s): イテレータブロック内でマッチが行われ
+	  ると位置がずれる(時に無限ループに落ちる)
+
+	* string.c (str_resize): lenが0の時sizeの調整が行われなかった
+
+Thu Nov 28 00:59:54 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.3-961128
+
+	* parse.y (parse_string): 3-quote styleの文字列(例:"""abc"d"e""")
+
+	* configure.in (EXTSTATIC): extを静的にリンクする時にはrubyはdllを
+	  使うように
+
+	* io.c (Init_IO): getsの引数が間違っていた
+
+	* string.c (str_each_line): RSを明示的に指定できるように
+
+Wed Nov 27 12:37:46 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.3-961127
+
+	* eval.c (rb_eval): iver defined? でselfを指定するのを忘れた
+
+	* io.c: gets等でRSを明示的に指定できるように
+
+	* ext/extmk.rb.in (install): static linkに失敗
+
+Tue Nov 26 10:33:04 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.3-961126
+
+	* string.c (str_sub_s): 置換後の文字列長さが間違っていた
+
+Mon Nov 25 09:11:22 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* numeric.c (fix_rshift): 32以上の右シフトで0を返すように(Cの
+	  rshiftは(x>>(y%32))を返していた)．
+
+	* string.c (str_gsub): 置換が行われない場合があった
+
+	* string.c (str_resize): 本当に必要な時だけrealloc
+
+Thu Nov 21 04:13:21 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* configure.in (EXTSTATIC): --with-static-linked-extで全てのモジュー
+	  ルを静的リンクするように
+
+	* pack.c (pack_unpack): 行末の改行がない時にもチェックサムをスキッ
+	  プするように
+
+Wed Nov 20 21:42:51 1996  Yasuo OHBA  <jammy@shljapan.co.jp>
+
+	* configure.in: freebsd対応
+
+Wed Nov 20 10:24:24 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ext/extmk.rb.in (install): 通常リンク用のLDFLAGSとダイナミックリ
+	  ンク用のDLDFALGSを分離
+
+	* ext/extmk.rb.in (install): コンパイルの成功したものを静的リンク
+	  のリストに追加する
+
+	* eval.c (f_missing): オブジェクトの文字列表現が長すぎる時バッファ
+	  を書き潰していた
+
+	* process.c (proc_exec_v): forkした後例外を発生させてはいけない
+
+Tue Nov 19 13:28:15 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.3-961119
+
+	* eval.c (mod_method_defined): Module#method_defined? の追加
+
+	* parse.y (call_args): 引数が唯一のコマンドコールである時のバグ(戻
+	  り値が展開されてしまう)
+
+Mon Nov 18 13:28:18 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* string.c (str_sub): 失敗した時にnilを返していた
+
+	* string.c (str_split_method): 検索開始位置が移動してなかった
+
+	* ext/socket/socket.c (sock_s_getservbyaname): まだ間違っていた
+
+	* version 0.99.3-961118
+
+	* string.c (str_sub_s): 元の文字列を置換するのを止めた
+
+	* pack.c (encodes): 領域外をアクセスしていた
+
+Fri Nov 15 17:10:35 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* bignum.c (big_divmod): Bignumが引数の場合の対応忘れ
+
+	* sample/ruby-mode.el (ruby-expr-beg): word?形式への対応が不完全
+
+Wed Nov 13 15:42:40 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* string.c (str_tr_s_bang): tr_sでtrが行われていなかった
+
+	* eval.c (rb_eval): autoloadクラスのチェック
+
+	* string.c (f_sub): subがsub!と同じ動作になっていた
+
+	* eval.c (thread_sleep): stopとsleepの分離
+
+Mon Nov 11 13:53:19 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.3-961111
+
+	* numeric.c (fix_step): to, stepが整数以外の場合に対応
+
+	* eval.c (rb_call): dynamic varがdynamic scopingになっていた(これ
+	  はまずい)
+
+	* string.c (str_chop_bang): 長さ0の文字列のchopで，領域外のアクセ
+	  スが発生していた．
+
+	* parse.y (yyerror): 割り当てた領域外をアクセスしていた
+
+Fri Nov  8 11:54:46 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (thread_yield): scopeをheapにコピー
+
+Thu Nov  7 09:56:53 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* numeric.c (num_coerce): とりあえず両辺をFloatに変換することに
+
+Wed Nov  6 10:45:13 1996  Yasuo OHBA  <jammy@shljapan.co.jp>
+
+	* lib/parsearg.rb: 第2引数を変更．
+
+Tue Nov  5 14:21:09 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.3-961105
+
+Sat Nov  2 01:11:40 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* bignum.c (big_pow): typo (dy -> dx)
+
+	* bignum.c (big_divmod): 知らない型はfloatに変換してみる
+
+	* numeric.c (fix_lshift): 境界条件のバグ(負になっていた)
+
+	* bignum.c (big_pow): 無駄なfloatへの変換をなくした
+
+	* math.c (math_atan2): typo(x -> y)
+
+Fri Nov  1 15:30:59 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ext/socket/socket.c (sock_gethostname): gethostnameがない時には
+	  unameを使ってホスト名を得る
+
+	* ext/etc/etc.c (etc_getlogin): getloginがNULLを返しても環境変数を
+	  調べるように
+
+	* object.c (krn_clone): オブジェクトのフラグもコピー
+
+	* hash.c (rb_cmp): ハッシュの比較を`=='でなく`eql?'に変更
+
+	* math.c (Need_Float): Float()を使って変換する
+
+	* compar.c (cmp_gt): 以前の右辺を返す仕様の名残が残っていた
+
+Thu Oct 31 12:55:51 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.3-961031
+
+	* numeric.c (Init_Numeric): typo
+
+	* eval.c (error_print): 長すぎるtrace backを途中省略する
+
+	* regex.c (re_compile_pattern): 全角のrangeに対応
+
+Wed Oct 30 03:03:18 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.3-961030
+
+	* io.c (f_ungetc): 関数を追加
+
+	* eval.c (dyna_var_asgn): return値忘れ
+
+Tue Oct 29 10:05:28 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* string.c (f_split): 関数splitを追加
+
+	* eval.c (rb_call): ネストした外側のクラス/モジュールの定数を参照
+	  できるように
+
+Mon Oct 28 09:51:03 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* string.c (str_sub): offsetが文字の末尾にある時のチェック
+
+	* regex.c (re_match): 割り当てるレジスタの数が1多かった
+
+	* io.c (io_gets): $/ = ""の動作をperlに合わせる(awkとはちょっと違
+	  うらしい)
+
+	* io.c (io_gets): $/ = nilの時少し高速化
+
+	* string.c (str_split_method): 括弧がnullにマッチした時にも無視し
+	  ないように
+
+	* string.c (str_split_method): 括弧にマッチした分はlimitの数に含め
+	  ないように．
+
+	* numeric.c (num_coerce_bin): coerceの定義を変更，2要素の配列
+	  [x,y]を返すように
+
+	* sample/ruby-mode.el (ruby-calculate-indent): "do |aa|"の対応を改
+	  善した．
+
+Sat Oct 26 01:43:51 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ext/marshal/marshal.c (w_object): ビルトインクラスのサブクラスを
+	  正しく復旧できるように
+
+	* ext/marshal/marshal.c (w_object): ユーザ定義dumpの優先
+
+	* numeric.c (flo_coerce): Float()を使って定義
+
+	* numeric.c (Init_Numeric): Numericのnewのundefはまずい
+
+	* ext/marshal/marshal.c (w_symbol): シンボルの内容(文字列)は一度し
+	  かファイルに書き出さない．
+
+	* sample/ruby-mode.el (ruby-parse-region): if/while修飾子に対応し
+	  なくなっていた
+
+	* bignum.c (Init_Bignum): Bignum.newを除く
+
+	* eval.c (rb_eval): 引数評価後にファイル名と行番号を再設定
+
+	* numeric.c (flo_div): typo
+
+	* sample/ruby-mode.el (ruby-parse-region): def /, def `に対応
+
+Fri Oct 25 09:26:29 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* sample/ruby-mode.el (ruby-calculate-indent): "do |aa|"に対応
+
+	* array.c (ary_aset): indexがfixnumの場合ちょっと高速化
+
+	* eval.c (thread_fd_writable): 書き込み前のselectチェック
+
+	* array.c (ary_assoc): 無限ループに落ちた
+
+	* eval.c (thread_wait_for): selectがエラー終了した時，linux以外で
+	  の動作が正しくなかった．
+
+Thu Oct 24 08:26:48 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (backtrace): `$@'を文字列から配列に変更した．
+
+	* eval.c (eval): eval中の例外発生位置を保存する
+
+	* bignum.c (bigsub): オペランドの大小比較の失敗
+
+	* re.c (reg_search): 直接参照がない時にも`$~'がセットされるように
+
+Wed Oct 23 10:40:10 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.2-961023
+
+	* ext/marshal/marshal.c (r_bytes): mallocをやめ，allocaを使う
+
+	* sample/ruby-mode.el (ruby-calculate-indent): 括弧の対応を変更．
+	  ()内ではインデントをレベルを合わせるように
+
+Tue Oct 22 12:59:11 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* hash.c (hash_s_new): sizeを指定できるように
+
+	* ext/marshal/marshal.c (w_object): dumpする深さ制限を指定できるよ
+	  うに
+
+	* array.c (ary_s_new): sizeを指定した時の初期化忘れ
+
+	* object.c (f_float): big2dblの宣言忘れ．
+
+	* bignum.c (bigsub): 大きさの近いBignum同士の演算で結果が負になる
+	  場合に間違いがあった．
+
+	* array.c (ary_aset): 置換先と置換元が同じ長さの時内容を
+	  shift(memmove)しないように．
+
+	* ext/marshal/marshal.c (marshal_dump): ファイルフォーマットにバー
+	  ジョンを埋め込むように
+
+	* ext/marshal/marshal.c (tmpnam): linux-aout-dln用に定義
+
+Mon Oct 21 08:40:20 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ext/socket/socket.c (sock_s_gethostbyname): hostent構造体の情報
+	  を返す
+	  (sock_s_gethostbyaddr): IPアドレスからhostent構造体を得る
+	  (sock_s_getservbyaname): getservbyname(3)
+
+Fri Oct 18 10:37:36 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* sample/ruby-mode.el (ruby-indent-to): 移動先カラムが負になるバグ
+
+	* eval.c (compile): evalで元ソースの行番号でエラーを表示する
+
+Thu Oct 17 09:52:28 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (eval): evalで文法エラーがあった時にSEGV
+
+	* lib/safe.rb: Restricted.evalの中だけ制限を加える．
+
+	* eval.c (error_print): バックトレースの出力．callerで例外発生位置
+	  を調整した時に問題が出る(そんなことをしなければ良いのだが…)
+
+	* eval.c (make_backtrace): バックトレースの生成
+
+Wed Oct 16 12:56:22 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ruby-man-0.99.2-jp/index.html: 日本語版ドキュメントの完成(長かった…)
+
+	* re.c (reg_regcomp): $=がnilの時の処理
+
+	* string.c (f_chop): $_に対するchop
+
+Tue Oct 15 11:04:23 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.2-961015
+
+Mon Oct 14 18:22:38 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (thread_schedule): BOW対応．selectが-1を返した時にバグ(実
+	  はdo .. whileがcontinueで先頭にジャンプすると思い込んでいた．条
+	  件の直前だったのね ^^);;;;;
+
+	* sample/ruby-mode.el (ruby-mode-syntax-table): ?のsyntaxが"/"では
+	  まずいらしい
+
+	* hash.c (rb_hash): name conflict
+
+Fri Oct 11 00:23:05 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.2-961011
+
+	* ext/marshal/marshal.c (w_object): 結局動いていなかった循環オブジェ
+	  クト対応を外した．
+
+	* hash.c (rb_hash): Fixnumと文字列の高速化
+
+	* ext/marshal/marshal.c (w_object): 無駄なデータの削除(フォーマッ
+	  トの非互換性)
+
+	* io.c (io_readline): 戻り値の不備
+
+	* ext/marshal/marshal.c (marshal_dumps): MSDOS対応
+
+	* ruby.c (load_file): MSDOS対応
+
+Wed Oct  9 17:46:27 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ext/extmk.rb.in (install): 無駄なコピーを避ける
+
+	* string.c (str_sub_method): マッチがなかった時のString#subの値が
+	  違っていた．
+
+	* eval.c (obj_extend): extendした時にobject_extendedを呼ぶように
+
+Tue Oct  8 00:55:38 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (thread_alloc): 割当の平均化
+
+	* eval.c (thread_schedule): joinのバグを修正
+
+	* eval.c (thread_wait_for): selectへの割込みなどに対応
+
+	* eval.c (thread_select): linuxのselectの挙動に対応(timeoutが変化
+	  する)
+
+Mon Oct  7 09:47:19 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.2-961007
+
+	* eval.c (PUSH_BLOCK): the_classの保存を忘れていた．
+
+	* ext/dbm/dbm.c (fdbm_store): sizeの保存する場所が間違っていた
+
+	* ext/socket/socket.c (s_accept): thread対応していなかった
+
+Sat Oct  5 01:32:27 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* io.c (io_readchar): EOFで例外を発生させる
+
+Fri Oct  4 11:59:54 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ext/marshal/marshal.c (w_object): HashとObjectの復旧に必要なハッ
+	  シュテーブルが渡されていなかった．
+
+	* variable.c (rb_path2class): ユーザ定義クラスの復旧に失敗していた
+
+	* variable.c (rb_path2class): クラスが存在しない時のエラーをFatal
+	  からNameErrorへ．
+
+	* range.c (range_s_new): first,lastが両方Numericの時エラーになって
+	  いた．
+
+	* range.c: start->first, end->last
+
+Wed Oct  2 02:02:46 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* file.c: DJGPPでchmod,chownを使えるように(ってDOSにchownがあるのか?)
+
+	* class.c (rb_singleton_class): ビルトインクラスもextendしたり特異
+	  メソッドを追加したりできるように
+
+	* variable.c (rb_set_class_path): ユーザ定義のトップレベルクラスに
+	  pathを設定しない
+
+	* eval.c (eval): 例外がRuntimeErrorに化けていた
+
+	* eval.c (eval): eval中の例外の表現の改善
+
+	* eval.c (eval): eval_with_bindingとの一本化
+
+	* eval.c (rb_eval): クラス/モジュール定義の中から定義中のクラス/モ
+	  ジュールが参照できるように
+
+Tue Oct  1 01:40:09 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.2-961001
+
+	* parse.y: cur_crefが2度宣言されていた
+
+	* signal.c (trap): SIGSEGV，SIGBUSのない機種に対応
+
+	* io.c (Init_IO): 引数タイプの指定間違い
+
+Mon Sep 30 15:28:00 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.2-960930
+
+	* config.guess,config.sub: $host_osが正しく設定されない
+
+	* eval.c (rb_eval): yieldで正しくないselfが設定されていた
+
+	* eval.c (ruby_run): toplevelの例外処理のバグ
+
+Mon Sep 30 09:13:26 1996  WATANABE Hirofumi  <watanabe@ase.ptg.sony.co.jp>
+
+	* djgpp対応
+
+Sat Sep 28 02:45:10 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.2-960928
+
+	* sample/ruby-mode.el (ruby-beginning-of-block): ブロックの先頭に
+	  移動(正しくインデントしていないと動作しない)
+	  (ruby-end-of-block): 同上
+
+	* eval.c (class_s_new): Class#newがイテレータとして呼ばれた時は
+	  initializeもイテレータとして呼ばれるように
+
+	* signal.c (sigsegv): SEGVでbacktraceを表示するように
+
+Fri Sep 27 09:51:07 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.2-960927
+
+	* eval.c (error_print): 引数のないraiseでメッセージが正しく表示さ
+	  れるように．
+
+	* eval.c (rb_longjmp): mesgがnilの時RuntimeErrorを生成する．
+
+	* eval.c (f_raise): 引数がない時に対応
+
+	* eval.c (thread_mark): stack上にないデータのアドレス変換を行って
+	  いた．
+
+	* eval.c (Init_Thread): 割込みの間隔が1秒と長すぎた．
+
+Thu Sep 26 16:02:45 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (thread_schedule): 一度ペンディングになるとフラグがクリア
+	  されていなかった．
+
+	* process.c (rb_proc_exec): system/execの引数が空文字列であった場
+	  合，例外を発生すべきだった．
+
+	* config.sub/config.guess: 新しいものに置き換え
+
+Thu Sep 26 15:41:35 1996  WATANABE Hirofumi  <watanabe@ase.ptg.sony.co.jp>
+
+	* io.c (next_argv): -i.bakをBOWとDOSに対応．
+
+Thu Sep 26 01:31:43 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* io.c (io_sysread): EOFで例外
+
+	* io.c (f_readline): EOFで例外を発生するように．getsは互換性のため
+	  nilを返すままにする
+
+	* eval.c (proc_call): lambdaからのreturnでIN_BLOCKフラグが立ったま
+	  まだった
+
+	* eval.c (PUSH_BLOCK2): threadに対応するためBlockを一度stackにコピー
+
+Wed Sep 25 11:54:11 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (method_call): Const::method()形式を使えるようにしてみた．
+	  引数括弧は省略できない．
+
+	* sample/test.rb: Process.killの存在を確かめてからテストを行う
+
+	* eval.c (eval_with_binding): 第2引数としてbinding(またはlambda)を
+	  与えるとその環境でevalを実行するようにした
+
+	* eval.c (f_binding): 現在のbindingを返す関数
+
+	* eval.c: block構造体にthe_classを保存するメンバを追加
+
+	* process.c (Init_process): kill,wait,waitpidをProcessに移動
+
+Tue Sep 24 02:44:43 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* sample/ruby-mode.el: いろいろ問題が多いので以前の高速化は破棄．
+	  別のアプローチを使った．
+
+	* lib/tk.rb (Tk.pack): 複数のウィンドウを受け付けるpack
+
+Sat Sep 21 11:08:09 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (exprs): 空文も受け付けるように文法を変更．今までは改行
+	  の連続だけが許されていた．
+
+Fri Sep 20 11:39:18 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* Failの大半を名前つき例外に変更．
+
+	* re.c (Init_Regexp): 名前つき例外を導入．
+
+	* eval.c (f_missing): Objectはinspectしない．
+
+	* object.c (inspect_i): Object#inspectでloopに対応．
+
+	* regex.c (re_search): /^$/が""にマッチしなかった．
+
+Thu Sep 19 19:25:12 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* regex.c (re_search): /^$/が非空行にマッチしていた．
+
+Tue Sep 17 10:28:11 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.2-960917
+
+Mon Sep 16 10:47:56 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* sample/ruby-mode.el (ruby-calculate-indent): 演算子継続の場合の
+	  文字列の判定のバグ
+
+	* sample/ruby-mode.el (ruby-calculate-indent): elseなどの次の行の
+	  インデント計算を正しく．
+
+Sat Sep 14 08:37:19 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.2-960914
+
+Fri Sep 13 08:06:03 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ext/socket/socket.c (tcpaddr): port番号にntohsをつけ忘れ
+
+	* dln.c (link_undef): テーブルの種類が間違っていた．
+
+	* bignum.c (bigadd): 引き算が発生する時に計算違いが起きていた．
+
+	* parse.y (iter_do_block): do..endでもdynamic variableを．
+
+	* bignum.c (big_pow): より正確な計算を(整数同士ではfloatに変換しな
+	  い)．
+
+Thu Sep 12 13:11:55 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* variable.c (rb_set_class_path): Stringクラスが初期化される前に
+	  Stringを作っていた．組込みクラスにはpathはいらない
+
+	* parse.y (yylex): 0.1が0になっていた
+
+	* parse.y (yylex): 行番号の不整合
+
+	* gc.c (oblist_live_obj): 今「生きている」全部のオブジェクトを返す
+	  イテレータ．そのクラス(またはサブクラス)の全部のインスタンスを返
+	  すeach_object_ofも定義した．
+
+	* class.c (rb_define_class_id): 無駄なクラスを割り当てていた．結果
+	  として未初期化のクラスオブジェクトが存在していた．
+
+Wed Sep 11 00:56:23 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (yylex): octalの定数の検出をより正確に(090はエラーとか)．
+
+	* bignum.c (big_minus): yがxより大きい場合にエラー．
+
+	* parse.y (yylex): エラー行番号の表示をより正確に
+
+	* sample/ruby-mode.el (ruby-expr-beg): 変数名が1文字の時誤動作して
+	  いた．
+
+	* sample/ruby-mode.el (ruby-calculate-indent): ?/でループに落ちい
+	  たバグを修正．
+
+	* enum.c (enum_min,enum_max): sortのようにイテレータとしても動作す
+	  るように．
+
+	* enum.c (enum_find_all): typo
+
+Tue Sep 10 12:07:12 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* node.h (nd_line): NODEのlineをflagsに押し込めてオブジェクトサイ
+	  ズを小さくした．制限:32bit intのマシンの場合，ファイルの行数が
+	  32767を越えると正常に表示されない．
+
+	* st.c: hashとcompareの関数メンバを構造体にパック，クラス的な使い
+	  方を行う．1 tableあたり4 byteの節約．
+
+Mon Sep  9 16:35:54 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* file.c (file_truncate): 提供されない時には特別な例外を発生するよ
+	  うに．
+
+	* eval.c (Init_Proc): 不適切な位置のlocal-jumpを例外に．
+
+Sat Sep  7 17:06:15 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (proc_call): まだスコープがスタック上にある時には局所脱出
+	  を有効にする．これで，procを生成してcallすることは，スコープを脱
+	  出しない限り，yieldと同じ意味を持つことになる．
+
+Fri Sep  6 13:30:59 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* sample/ruby-mode.el (ruby-indent-to): インデントが変わらない時に
+	  はバッファを変更しない．
+	  (ruby-calculate-indent): まず文字列の内部か判断してから，前の行
+	  からパーズを行う．defunが大きくなった時の高速化．
+	  (ruby-in-string-p): 文字列の内部かどうかを判断する関数(以前の
+	  parseから分離)
+	  (ruby-parse-region): 文字列に対する処理をはずす．
+	  (ruby-beginning-of-block): ブロックの先頭に
+	  (ruby-end-of-block): ブロックの末尾に(遅い…)
+
+Thu Sep  5 14:23:07 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* file.c (file_s_split): [dirname,basename]にsplitする．
+
+	* eval.c (rb_eval): evalの中でも定数の値が正しくなるように．これで
+	  定数に関しては静的なスコープが保証されるようになった．
+
+	* st.c (rehash): ハッシュ拡大の系数を2から1.79に．割算がより良い値
+	  を返すように．
+
+Thu Sep  5 00:32:07 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (class_superclass) クラスのスーパークラスを返すメソッド．
+
+Wed Sep  4 16:54:56 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* random.c (f_rand): Bignumやlongの範囲を越えるFloatに対する乱数も
+	  発生できるように．
+
+	* struct.c (struct_alloc): Fatalではなく例外を発生させるように(通
+	  常の使用で発生しうる)．
+
+	* struct.c (struct_s_members): Structの特異メソッドではなく，生成
+	  されたStructクラスの特異メソッドにした．
+
+	* st.c (st_init_table): ruby専用にパラメタを固定にした(サイ
+	  ズが減った)
+
+Mon Sep  2 11:37:59 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* array.c (ary_shift): capaがあまりにも大きい時には領域をREALLOC
+	(ary_pop): 同上
+
+	* string.c (str_inspect): multibyte character 対応にミス．
+	(str_inspect): unsigned charにしないと符号展開されてしまう
+
+	* parse.y (primary): `::'をprimaryに移動 Foo::Bar.Bazがエラーにな
+	  らないように．
+
+	* parse.y (primary): オペレータ形式の特異メソッドが定義できない
+
+	* random.c (f_rand): maxが0の時に対応
+
+	* io.c (io_printf): 関数を定義していたがインタプリタに登録していな
+	  かった．
+
+	* file.c (file_s_basename): 第2引数が無い時にエラー．
+
+Thu Aug 29 10:49:40 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (expr): イテレータの新形式に「method do .. end」形式を採
+	  用した．もちろん昔の形式も有効．
+
+	* sample/ruby-mode.el (ruby-calculate-indent): endの数の方が多い場
+	  合にもエラーを起こさないように．
+
+Wed Aug 28 09:41:36 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* numeric.c (upto,downto,step,times): 対象がfixnumの範囲を越えても
+	  動作するように．
+
+Mon Aug 26 10:04:37 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* missing/setenv.c (envix): typo(missing `== 0' for memcmp)
+
+	* dir.c (dir_foreach): foreach(dir open -> read loop -> closeまで)
+
+	* io.c (io_foreach): foreach(file open -> read loop -> closeまで)
+
+	* Fatalのうち捕捉可能ないくつかを例外に．
+
+Sat Aug 24 23:56:37 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* bignum.c (bigdivmod): FIX2INT -> INT2FIX 大間違い
+
+Fri Aug 23 18:13:03 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* regex.c (re_free_registers): allocateしていない時には当然 free
+	  してはいけない．
+
+Thu Aug 22 01:20:35 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (thread_create): 外側から強制終了させられたthreadは
+	  cleanupする必要が無い．
+
+Wed Aug 21 09:57:28 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (thread_create): threadを終了させた大域脱出の情報を
+	  main_threadに渡すように．
+
+	* parse.y (call_args): 最終引数に括弧を省略したメソッド呼出しを置
+	  けるように(例: print foo bar, baz == print(foo(bar,baz)))
+
+Tue Aug 20 13:37:16 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (masign): 多重代入とrest引数の動作を合わせて空の配列を代
+	  入するように．
+
+	* parse.y (arg): defined?の強度をもうちょっと強く
+
+	* eval.c (error_print): -wで例外名も表示するように
+
+	* eval.c (rb_eval): 新構文に対応
+	(handle_rescue): 捕捉する例外を kind_of? で同定
+
+	* parse.y (primary): rescueの構文を変更(同定引数の追加，複数rescue)
+
+	* Fail()のかなりを適当な例外を使うように
+
+	* eval.c (thread_interrupt): Interrupt(今はnon-local jump)は
+	  main-threadに送られるように．
+
+	* eval.c (rb_longjmp): $! の内容を文字列から例外クラスに変更
+	(rb_raise): rb_fail から名称変更
+	(rb_interrupt): 例外化
+	(rb_exit): 例外化
+
+	* error.c (Init_Exception): 例外クラスの新設(文字列のサブクラス)
+
+Mon Aug 19 19:40:52 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* signal.c (trap): 古いハンドラを返すように．
+
+Wed Aug 14 00:07:18 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (rb_trap_eval): ハンドラのためにthreadをforkすることを止
+	  めた．
+
+	* eval.c (thread_mark): thread毎の $!, $@ をマークし忘れ
+
+	* ext/dbm/dbm.c (fdbm_delete): イテレータとして呼ばれた場合，要素
+	  が無ければブロックを評価する．
+
+	* hash.c (hash_delete): イテレータとして呼ばれた場合，要素が無けれ
+	  ばブロックを評価する．
+
+	* array.c (ary_delete): イテレータとして呼ばれた場合，要素が無けれ
+	  ばブロックを評価する．
+
+	* eval.c (rb_interrupt): SIGINTのデフォルトをexitから特別な大域脱
+	  出に．やはり割り込まれた位置の表示が無いのは寂しいので．
+
+Tue Aug 13 01:34:00 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (rb_exit): sub-thread内でのexitもstatusを保存するように
+	(thread_create): 自thread内のexitに対応
+
+	* signal.c (sighandle): SIGINTのデフォルトハンドラはexitするように
+	  (以前は例外を発生していた)．
+
+	* 例外の一部をFatalに．
+
+	* string.c (str_aset): 文字列の置換の対象が部分文字列でなかった時，
+	  例外を発生させないように
+
+	* eval.c (proc_call): Procの中からbreak/nextは通し，他のものは通さ
+	  ないように
+
+Mon Aug 12 14:15:09 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* object.c (krn_type): 文字列を返す
+
+	* eval.c (thread_create): sub-thread内でのexitに対応
+
+	* numeric.c (fix_type): 文字列を返す
+
+	* io.c (f_p): デバッグ用データ表示メソッド
+
+	* eval.c (f_missing): nil/TRUE/FALSEを特別扱い
+
+	* string.c (str_inspect): 長い文字列を短縮表示．inspectの働きを
+	  human readable stringの生成に統一(re-generatable string は正式に
+	  無くなった)．
+
+Sat Aug 10 16:54:21 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* object.c (Init_Object): kernel/nil/false/trueのクラス名を変更(小
+	  文字に)，rubyスクリプトからアクセスできないように．
+
+	* eval.c (rb_eval): CONSTANTのアクセス先を単純化．crefを使わない．
+
+	* eval.c (f_eval): 特異メソッド内でも定数の値が正しくなるように
+
+Fri Aug  9 12:23:17 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* array.c (ary_concat): append -> concat Stringに合わせた
+
+	* parse.y (yylex): `$;'が使えなかった．
+
+	* array.c (ary_push_method): 複数引数を受け付けるように．
+	(ary_unshift): 複数引数を受け付けるように．
+
+	* io.c (io_popen): IO.popenでcommand pipeが開けるように．
+
+	* object.c (Init_Object): KernelとNilをruby scriptからアクセスでき
+	  ないように．
+
+Thu Aug  8 01:21:47 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* object.c (f_integer): 整数への変換関数
+	(f_float): 実数への変換関数
+	(f_string): 文字列への変換関数
+	(f_array): 配列への変換関数
+
+	* bignum.c (big_to_i): FIXNUMの範囲でない時はBignumのまま返すよう
+	  に変更．
+
+Wed Aug  7 09:28:38 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99.1-960807
+
+	* parse.y (mlhs): 「*foo = 1,2,3」タイプの多重代入も可能に．
+
+	* object.c (Init_Object): クラスTrue/Falseをruby scriptからアクセ
+	  スできないように．
+
+	* object.c (nil_inspect): inspect表現は"nil"に
+
+	* io.c (io_print): nilのprintをnilに．
+
+	* object.c (nil_to_s): nilの文字列表現を""に．
+
+Tue Aug  6 01:12:32 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* dir.c (dir_s_open): file descripterが足りない時にはgcしてからも
+	  う一度openしてみる．
+
+	* io.c (rb_fopen): すべてのfopen()についてfile descripterが足りな
+	  い時にはgcしてからもう一度openしてみる．
+
+	* ext/socket/socket.c (Init_socket): 定数の追加．
+
+	* sample/ruby-mode.el (ruby-indent-to): インデント後のカーソル位置
+	  の調整を正しく．
+
+	* gc.c (gc): 割込みチェックを行わない(Cコードの中で安心して
+	  malloc()が使えなくなるので)．
+
+	* st.c (call_hash_func): signalとthreadによる割込みに対応．
+
+	* sig.h (DEFER_INTS): 割込み禁止区間の指定
+
+	* eval.c (f_require): threadによるrequireの競合に対応(最初の
+	  requireが終了するまで他のthreadは待つ)．
+
+	* bignum.c (str2inum): 0x80000000の値が負になっていた
+
+	* sprintf.c (f_sprintf): 文字列末尾，行末の単独の`%'に対応
+
+	* bignum.c (big_cmp): 比較の結果が逆になる時があった．
+
+Mon Aug  5 10:58:13 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* process.c (proc_exec_v): 例外のメッセージを分かりやすく．
+
+	* ext/dbm/dbm.c (fdbm_store): nilを格納すると要素の削除になる
+
+	* ext/dbm/dbm.c: サイズをキャッシュ．
+
+Sat Aug  3 01:52:52 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (rb_fail): `fail'が引数無しで呼ばれた時だけ以前の`$@'を保
+	  存するように．
+
+	* eval.c (f_fail): frameの調整
+
+Fri Aug  2 11:26:21 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ext/socket/socket.c (bsock_setopt): valとしてTRUE/FALSE/Fixnumも
+	  受け付けるように．
+
+	* ext/socket/socket.c (Init_socket): SO_REUSEADDR等の定数の追加
+
+	* ext/md5/md5init.c: md5モジュール(初の複数ファイルからなるモジュー
+	  ルでもある)
+
+	* ruby.h (Make_Data_Struct): Data: objectのinstance変数に格納 ->
+	  Data型のObjectに(Dir,Time,Proc,Thread,DBM)
+
+Thu Aug  1 11:38:44 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ext/dbm/dbm.c (fdbm_store): valueが文字で無い時に対応
+
+Wed Jul 31 10:53:42 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ext/socket/socket.c (open_inet): htonsが必要であった
+	(tcpaddr): ntohlで変換した
+
+	* process.c (rb_proc_exec): execvp -> execv
+
+Tue Jul 30 17:48:33 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c: `$?'をthread localに
+
+	* Makefile.in (install): install時にstripを行う
+
+	* configure.in: install時のstripの検出
+
+	* configure.in: NEXTSTEP対応
+
+	* version 0.99.1-960730
+
+Tue Jul 30 16:40:35 1996  SHIROYAMA Takayuki  <psi@fortune.nest.or.jp>
+
+	* dln.c (dln_load): NeXT dln(mach-o)対応．configureは未対応
+
+Tue Jul 30 09:46:51 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* process.c (f_system): 複数引数もとれるように
+
+	* process.c (f_exec): 複数引数もとれるように
+
+	* array.c (ary_append): 配列(またはEnum)の要素を破壊的に追加
+
+	* array.c (ary_plus): Enumはその要素を追加
+
+	* file.c (file_s_open): File.openを追加
+
+	* struct.c (struct_new): FIX2INTを忘れていた
+
+	* file.c (Init_File): exists? -> exist?
+
+	* object.c (obj_is_kind_of): is_kind_of? -> kind_of?, is_a?
+
+	* object.c (obj_is_instance_of): is_instance_of? -> instance_of?
+
+Mon Jul 29 16:40:02 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (parse_regx): 式展開を行った場合，casefoldの設定ができて
+	  いなかった．
+
+	* object.c (true_type): TRUE/FALSEにtypeを実装．
+
+	* parse.y (read_escape): 3文字以内のoctalに対応(\0とか)
+
+Fri Jul 26 00:31:45 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* array.c (ary_reverse_bang): in-placeで配列を反転させる
+	(ary_sort_bang): in-placeでsortする
+	(ary_sort): sortした配列を返すように
+	(ary_delete_at): 指定した位置の要素を削除する
+
+	* eval.c (rb_call): stack深さチェックを毎回は行わないように
+
+	* error.c (Warning): 実行中のwarningが表示されていなかった
+
+	* eval.c (compile): 例外発生を分離．
+
+	* eval.c (f_eval): 変数rb_in_evalを正しく管理するように
+
+	* ext/dbm/dbm.c (fdbm_store): 格納するkeyを文字列に変換
+
+	* eval.c (rb_call): 無限再帰のチェックを大域脱出を行うC methodにも
+	  対応させた．threadのstack深さチェックルーチンを流用．
+
+	* parse.y (yylex): 第1引数のunary -/+の判定が間違っていた．
+
+	* parse.y (yylex): unary +で数字を余計に読んでいた(ex. +5 -> 55)
+
+Thu Jul 25 12:15:04 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (yylex): 曖昧でない引数に対して警告を出していた．
+
+	* eval.c (iterator_p): 引数で呼んでも正しい結果を返すように．
+
+	* parse.y: break/next/redo/retryのメソッド化．
+
+	* sample/ruby-mode.el (ruby-calculate-indent): nestのチェックミス
+
+	* sample/ruby-mode.el (ruby-parse-region): 予約語のチェックを強化
+
+	* parse.y (primary): unless/untilの復活
+
+Tue Jul 23 18:50:10 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* array.c (Array#empty?), Hash.c (Hash#empty?), ext/dbm/dbm.c (DBM#empty?):
+	  空の判定述語
+
+	* eval.c (f_unless): ifの逆をするイテレータ
+
+	* eval.c (f_until): whileの逆をするイテレータ
+
+	* parse.y: notの優先順位をand/orより高く
+
+	* parse.y (expr): `!'を引数括弧を省略したcallでも有効に
+
+Mon Jul 22 10:15:38 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99-960722
+
+	* array.c (ary_print_on): OFSのNILチェックが不完全
+
+	* ruby.c  (load_file): 標準入力からのスクリプトが空の時に対応．
+
+	* ruby.c (proc_options): -wでは引数無しの時には標準入力からスクリ
+	  プトをとる(-vではたんに終了する)．
+
+	* array.c (ary_compact): nilの要素を取り除くメソッド
+
+	* array.c (ary_nitems): nilでない要素を数えるメソッド
+
+Sun Jul 20 00:51:53 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ruby.c (proc_options): -w optionを追加
+
+	* parse.y: {}が閉じていない時には展開しない文字列を
+
+Fri Jul 19 16:16:05 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99-960719
+
+	* lib/find.rb: 石塚版(pruneの拡張付き)
+
+	* file.c (test_l): lstatで調べないとね．
+
+	* eval.c (f_throw): 第2引数を省略可能に．
+
+	* parse.y (str_extend): {}のネストに対応
+
+Thu Jul 18 18:25:46 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99-960718
+
+	* parse.y (str_extend): 文字列中の式展開に \" ' ` / を含む事ができ
+	  るように．
+
+Tue Jul 16 15:55:31 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* sample/ruby-mode.el (ruby-parse-region): 正規表現内のエスケープ
+	  に対応
+
+	* version 0.99-960716
+
+Fri Jul 12 10:06:19 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* io.c (f_select): 引数のclose check.
+
+	* ruby.c (load_file): #!行の引数チェックを第1引数に限定(実をいうと
+	  DOS改行対策)
+
+Wed Jul 10 17:18:35 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99-960710
+
+	* time.c (time_s_timegm/time_s_timelocal): 時間を生成するメソッド
+
+Mon Jun 17 15:59:20 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99-960617
+
+	* parse.y (yyerror): エラー表示の簡略化．
+
+Wed Jun 12 14:11:01 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* signal.c (rb_trap_exit): trap 0はthreadを生成せずに処理する．
+
+Fri Jun  7 10:17:01 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* array.c/hash.c (indexes): 配列1引数のパターンを無くした．配列の
+	  場合は`*ary'を使ってもらおう．
+
+	* eval.c (thread_wait_threads): main_threadが終了する前に他の
+	  threadを待つ(強制的には終了させない)．
+	  (ruby_run): 他のthreadを待っている間にシグナルが来たら，全thread
+	  を強制終了させる．
+
+	* eval.c (rb_fail): メソッド名を`$!'に埋め込む．
+
+	* eval.c (thread_create): main_threadのコンテクストがセーブされな
+	  い場合があった．
+
+	* process.c (f_sleep): 時間を指定せず，threadがひとつしかない状況
+	  にも対応．
+
+	* eval.c (thread_create): create後，fnを呼び出す前にcontext switch
+	  が起きると違うcontextでfnが実行されてしまうバグ．
+
+Mon Jun  3 08:03:17 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* struct.c (struct_s_def): メンバの指定を文字列，シンボル(FIXNUM)
+	  双方で可能にした．
+
+	* ext/etc/etc.c (Init_etc): 構造体オブジェクトをGCから保護した．
+
+	* error.c (rb_sys_fail): nil/FALSEを引数として受け付けるように．
+
+Thu May 30 16:19:08 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (thread_select): EINTRに対応．
+
+Wed May 29 11:04:51 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (f_catch): catch/throwを実装した．
+
+Tue May 28 13:30:52 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99-960528
+
+	* eval.c (thread_cleanup): main threadが終了すると他のthreadも終了
+	  することの明確化．
+
+	* signal.c (trap): SIGINTのデフォルトの設定ミス(本当にSIG_DFLでは
+	  まずかった)．rubyではちゃんとハンドルしないと．
+
+	* eval.c (thread_interrupt): SIGINTはmain_threadに例外を発生させる
+	  ように．
+
+Mon May 27 15:13:31 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (thread_status): threadの状態を返すメソッド．threadの終了
+	  を待たない．
+
+	* eval.c (thread_value): 一種のpromiseを実装するためのメソッド．
+
+	* eval.c (thread_join): 待っているthreadが例外を起こした時には，
+	  joinがその例外を発生するように．
+
+	* eval.c (thread_create): threadでの例外をpropagateしないように．
+
+Fri May 24 10:47:53 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* enum.c (Init_Enumerable): `size' as alias to the `length'
+
+	* eval.c (thread_save_context): `$@', `$!'をスレッド毎にセーブ．
+
+	* eval.c (superclass): エラー表示をより親切に．
+
+Thu May 23 10:38:41 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.99-960523
+
+	* eval.c (superclass): エラー時にスーパークラス名を(分かれば)表示
+	  するように．
+
+Wed May 22 19:48:42 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (superclass): スーパークラスの指定子を`:'から`<'に変更．
+
+Tue May 21 09:27:59 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* lib/thread.rb: threadをサポートするクラス(Mutex, Queue)．
+
+Mon May 20 09:39:49 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* time.c (time_cmp): 浮動小数点数も扱えるように．
+	(time_minus): Time - Timeが浮動小数点数を返すように．
+
+Fri May 17 15:40:10 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* process.c (rb_proc_exec): Thread対応時にexecの直前に
+	  ITIMER_VIRTUALをリセットする．
+
+Tue May 14 02:12:44 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* signal.c (sighandle): SIGINTに対してデフォルトで例外を発生させる
+	  のをやめ，status 130でexitするようにした．
+
+	* eval.c (thread_schedule): Threadのバグはほとんどとれたようだ．
+
+Fri May 10 11:21:08 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (thread_schedule): ユーザレベルThread機能．効率はともかく
+	  移植性はある．今後，thread間の通信機能を実装する予定．
+
+Thu May  2 21:22:31 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* time.c (time_timeval): struct timevalを直接返すように(static変数
+	  を使わない)．
+
+Wed May  1 17:27:32 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* process.c (f_sleep): 整数以外のtimeを指定できるように．
+
+Thu Apr 25 08:19:15 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* file.c (file_s_dirname): ファイル名が"/"を含まない時，"."を返す
+	  ように(GNU dirnameの仕様)．
+
+	* file.c (file_s_basename): まだnilと0を混同しているソースが残って
+	  いた．
+
+	* parse.y (exprs): エラーリカバリを追加．
+
+Wed Apr 24 15:51:05 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* string.c (str_chop_bang): CRLFの場合2 bytesをchop!するように．
+
+	* ext/socket/socket.c (tcp_svr_s_open): まだnilと0を混同しているソー
+	  スが残っていた．
+
+Tue Apr 23 18:14:25 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* pack.c (pack_pack): "A/a"のバグ．余計なpaddingが入っていた．
+
+Thu Apr 18 13:02:11 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* configure.in: アーキテクチャ依存部を別ディレクトリにインストール
+	  するように．
+
+	* parse.y (yyerror): エラー発生時にエラー行とその位置を表示するよ
+	  うに．
+
+Wed Apr 17 14:22:42 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* defines.h: SAFE_SIGHANDLEを無くし，危険な選択はできないように．
+
+	* io.c (io_ungetc): 新機能．
+
+	* ruby.c (load_file): ファイルからの読み込み方式が変わったのに対応．
+
+	* parse.y (compile_file): ファイルからの入力を一度全部読み込むのを
+	  止めて，getsを使うことにした．
+
+Wed Apr 10 17:40:11 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.98
+
+Tue Apr  9 09:54:30 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (iter_block): イテレータブロックの指定をメソッド呼び出し
+	  に限定．文法の明確化．
+
+	* eval.c (rb_eval): 条件式の正規表現の比較をinline化．
+
+	* eval.c (rb_eval): defined? の 定義情報(種別)を文字列で返す．
+
+	* node.h: NODE_BEGIN -> NODE_RESCUE, NODE_ENSUREに分離．
+
+	* eval.c (rb_eval): option -n/-pのトップレベルループのinline展開．
+
+	* parse.y (cond0): 条件式中の文字列は比較の対象としない
+
+Wed Mar 27 12:33:54 1996  Tairo Nomura  <tairo@hucom.tp.titech.ac.jp>
+
+	* defines.h: NeXT対応
+
+Wed Mar 27 10:02:44 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y: 予約語の変更 continue -> next
+
+Mon Mar 25 07:34:37 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (parse_regx): o(once)オプションを追加．
+
+Fri Mar 22 14:25:35 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.97d
+
+	* eval.c (dyna_var_defined): 動的ローカル変数の定義チェック用ルー
+	  チン．
+
+	* parse.y (gettable): eval()の中での動的ローカル変数(既に値を持っ
+	  ているもの)の検出に失敗していた．
+
+Tue Mar 19 10:46:47 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.97c
+
+	* re.c (reg_s_new): compile時にsegmentation fault．
+
+	* parse.y (str_extend): いつもevalするように．
+
+Wed Mar 13 11:00:42 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (str_extend): 文字列中の式展開の不備を無くした．
+
+	* parse.y: 下手なエラーリカバリを外した．
+
+Tue Mar 12 12:30:20 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (rescue): 間違ってensureでも例外を捕捉していた．
+
+Wed Mar  6 12:11:03 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (var_extend): 変数展開"#{}"で，任意の式を書けるようにし
+	  た，これで「変数」展開では無くなっちゃったなあ．
+
+	* regex.c (init_syntax_once): `_'をwordに追加．
+
+	* regex.c (re_compile_pattern): `\w',`\W'の判定をsyntax tableを使
+	  うように．
+
+Tue Feb 27 10:15:32 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* object.c (obj_inspect): 表示するインスタンス変数が無い時には，
+	  to_sを使う．
+
+	* configure.in: dlnの検出を自動的に．
+
+Mon Feb 26 19:55:33 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ruby.c (readin): read(2)で一度にファイルが読み込めない場合に対応．
+
+Sat Feb 24 14:47:18 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.97b
+
+Fri Feb 23 11:26:02 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* class.c (rb_define_module): C言語で定義されたモジュールのPATHの
+	  設定忘れ．文字列化でcore dump．
+
+	* eval.c (mod_include): 戻り値をnilに．
+
+	* version 0.97a
+
+Thu Feb 22 21:03:42 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* array.c (ary_times): 「配列*文字列」がjoinと同じ働きをするように．
+
+Wed Feb 21 11:18:09 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* configure.in : fileCountをcache．
+
+	* configure.in : LinuxでELF環境を自動的に検出できるよう．
+
+Tue Feb 20 11:18:09 1996  Mitsuhide Satou  <mit-sato@aries.bekkoame.or.jp>
+
+	* FreeBSD dynamic link対応．
+
+Fri Feb 16 08:50:01 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* object.c (obj_inspect): インスタンス変数を持たないオブジェクトも
+	  正しく表示されるように．
+
+Wed Feb 14 16:56:44 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (rb_eval): 条件式の`2..2'など左辺成立直後に右辺が成立する
+	  パターンにバグ．
+
+Tue Feb 13 18:22:22 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.97
+
+Fri Feb  9 21:32:55 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* lib/tkscrollbox.rb: スクロールでtclの設定を行い，ruby<->wishの不
+	  要な通信を無くした．
+
+Wed Feb  7 10:26:52 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* string.c (str_aref): indexをunsigned intでとっていた．
+
+	* string.c (str_aref): 範囲外のindexに対してnilを返す．
+
+	* parse.y (special_local_set): `$_'が宣言無しに使われた場合に対応．
+	  関数をvariable.cから移動．
+
+	* string.c (str_sub): 置換開始位置が間違っていた．
+
+Tue Feb  6 16:17:31 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* sample/ruby-mode.el (ruby-parse-region): コメントの読み飛ばしの
+	  バグ．
+
+Fri Feb  2 18:35:28 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* variable.c (lastline_get): `$_'を`$~'と同じようにSCOPEローカルな
+	  変数にした．
+
+Thu Feb  1 14:14:07 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* file.c: statのcacheをやめた．
+
+Wed Jan 31 07:13:08 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (proc_s_new): procの中でyieldを呼ばれた時にcore dumpして
+	  いた．とりあえず例外を発生させる．
+
+	* variable.c (rb_class2path): singleton classに対応．
+
+	* ext/etc/etc.c (Init_etc): struct_defineのターミネータがnilだった
+	  (0でなければならない)．
+
+	* ext/marshal/marshal.c: TRUE/FALSEを吐き出せるように．
+
+	* eval.c (rb_get_method_body): キャッシュのalias対応，いままでは
+	  aliasはキャッシュに入っていなかった．
+
+Tue Jan 30 09:55:13 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (rb_eval): NODE_BLOCK - tail recursive(というほどでもない
+	  が)．
+
+	* io.c (io_pipe): pipe(2)を実装した．
+
+	* eval.c (rb_eval): Qselfをなくした．thread対応への第一歩．先は遠
+	  いが…．
+
+	* eval.c (proc_call): procの中でのreturnはprocの終了を意味するよう
+	  に．ただし，procからのyieldの中でのreturnは例外を発生する．
+
+Wed Jan 24 11:33:48 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.96a
+
+	* dir.c (dir_each): `$_'の値を変更するのをやめた．
+
+	* io.c (f_readlines): nilとFALSEの分離のあおりで無限ループに落ちて
+	  いた．
+
+	* ruby.c (ruby_options): $0の設定ミス．
+
+Tue Jan 23 15:28:21 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (rb_eval): ``は文字列を引数とするメソッド(`)呼び出しのシ
+	  ンタックスシュガーであるとした．
+
+	* ruby.c (addpath): `-I'オプションでディレクトリが「前に」追加され
+	  るように変更．
+
+Fri Jan 19 11:23:12 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* dln.c (load_1): N_INDR対応(出来たような気がする)．
+
+Thu Jan 18 18:14:20 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ruby.texi: FALSEとnilの分離を反映した．
+
+Tue Jan 16 17:39:23 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.96 - とりあえずnilとFALSEを区別する版
+
+Wed Jan 10 15:31:48 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* re.c (reg_match): マッチしなかった時の戻り値はFALSE．
+
+	* object.c (rb_equal): `0 == nil'がTRUEになるバグ．
+
+Tue Jan  9 00:44:58 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* nilとFALSEが分離可能に変更．
+
+	* nilとFALSEと0の区別を厳密に．
+
+	* struct.c (struct_new): 引数を0で終る必要が無くなった．
+
+	* object.c (inspect_i): オブジェクトのチェックのバグ(Fixnumでcore
+	  dumpしていた)．
+
+	* range.c (range_to_s): Rangeの表示を改善．
+
+	* object.c (true_inspect): TRUEの表示を`TRUE'に．
+
+Mon Jan  8 15:02:33 1996  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* numeric.c (fix_mul): divide by zero errorが発生した(オーバーフロー
+	  検出のバグ)
+
+	* texinfo.texをパッケージに含めた．
+
+Sun Dec 31 00:08:49 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (rb_eval): `::'では，そのクラスで定義された定数を参照する
+	  ように変更．
+
+	* string.c (Init_String): eachをeach_lineに戻した．
+
+Thu Dec 28 12:31:55 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (rb_eval): caseの演算子を`=~'から`==='に．
+
+	* variable.c (rb_const_set): クラス定数の再定義を許す(同じクラスで
+	  は不可)．警告は出す．
+
+Wed Dec 27 13:27:52 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.95c
+
+	* ext/tkutil/tkutil.c: wishがあってもなくても一応コンパイルだけは
+	  するように．
+
+	* lib/tk.rb: 環境変数PATHから{wish|wish4.0}を探すように．
+
+Tue Dec 26 01:03:42 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* sample/ruby-mode.el (ruby-parse-region): 正規表現の検出強化．
+
+	* numeric.c (fix_mul): 乗算のオーバーフロー検出アルゴリズムのバグ．
+
+	* ext/extmk.rb.in: ./install-shを使う場合のPATHを調整．
+
+	* Makefile.in (install): lib/*.rbを一つずつインストール．
+
+	* io.c (io_each_line): イテレータの戻り値をnilで統一．
+
+Fri Dec 22 10:34:32 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.95b
+
+	* variable.c (f_untrace_var): 第2引数を指定すると特定のtraceを削除
+	  できるように．
+
+	* variable.c (f_trace_var): 第2引数がnilの時，traceを削除する．
+
+	* lib/tk.rb (file_readable/file_writable): 第2引数をnilにすること
+	  によるevent handlerの削除．
+
+	* parse.y (variable): ドキュメントに`__FILE__'と`__LINE__'が残って
+	  いた．`caller(0)'で代用したはずだったのに．
+
+	* eval.c (f_eval): $!のリセット．
+
+	* error.c (err_sprintf): 勝手に"\n"を付加するのを止めた．
+
+	* parse.y (f_arglist): 引数リスト直後のif/whileの読み間違い．
+	  lex_stateの値が設定されていなかった．
+
+Thu Dec 21 00:56:57 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.95a - ^^;;;
+
+	* lib/tkscrollbox.rb: パッケージに入ってなかった．
+
+	* configure.in: FILE structureのチェックにバグ．
+
+	* Makefile.in (clean): ext以下をinstallしていた．
+
+	* ext/socket/extconf.rb: Solarisにおける-lnlsのチェック．
+
+	* array.c (beg_len): バグがあった…．悲しい．
+
+	* version 0.95 - fj.sourcesに
+
+	* eval.c (rb_eval): rescueのロジックをrb_rescue()に一元化．
+
+Wed Dec 20 19:30:58 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* Makefile.in: 不要なコンパイルの回避(より完全に)．
+
+	* class.c (singleton_class_new): `single'->`singleton'
+
+Tue Dec 19 07:14:33 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* io.c (closed?): IOがcloseされているかどうかを知る述語．
+
+	* parse.y (primary): 特異メソッドの引数のlex_stateが不適切．
+
+	* lib/tk.rb: tcl->rubyの変換関数の用意．
+
+	* ext/extmk.rb.in (install): installの2重コンパイルの回避．
+
+	* array.c (range_beg_len): range指定の不適切なエラーを訂正．
+
+	* string.c (str_aref): range指定のバグを削除．
+
+	* lib/tk.rb (tk_split_list): Tclのリストに対応．
+
+Mon Dec 18 09:58:12 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.94
+
+	* dln.c (dln_load): HP対応(未確認)
+
+	* eval.c (Init_Proc): BlockをProcに改名．
+
+Sat Dec 16 13:46:14 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (rb_eval): retryでイテレータの再実行ができるように．
+
+Fri Dec 15 17:14:30 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c: proc:lambdaの親しみやすい別名
+
+Thu Dec 14 17:21:55 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (dyna_var_asgn): イテレータブロック内で最初に初期化された
+	  ローカル変数の有効範囲をそのブロック内に限定．これでlambdaと呼べ
+	  ないことはない．
+
+Wed Dec 13 02:30:58 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* gc.c: autoloadのマークミス．
+
+	* lib/tk.rb: wishからの複数行の戻り値に対応
+
+	* lib/tkcomposite.rb: 複合widget
+
+	* variable.c (rb_class2path): ICLASSに対応してなかった．
+
+	* eval.c (ruby_run): exit(0)のバグ
+
+Sat Dec  9 01:21:24 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ext/marshal/marshal.c (dumps|load): 文字列に対する入出力を可能に
+	  した(ただし実はファイル経由なのだ)．
+
+Fri Dec  8 18:29:11 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ext/marshal/marshal.c: シンボルを一度だけ初期化する．
+
+Thu Dec  7 07:58:50 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (yylex): 第1引数の正規表現の認識にエラーがあった．同時に
+	  状態数を減らした．
+
+	* string.c (str_sub): 置換でスキップ幅が大きすぎた．
+
+Wed Dec  6 15:14:23 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* string.c (str_sub_method): sub/gsub(!なし)は置換が行なわれなかっ
+	  た時，置換前の文字列を返す．
+
+Tue Dec  5 00:55:15 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (yylex): 括弧を省略した時の引数展開の`*'に対応．
+
+	* eval.c (ruby_run): EXITハンドラ内での例外に対応．
+
+	* bignum.c (big_cmp): BignumとFixnumの比較で落ちる．
+
+Mon Dec  4 14:21:18 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (call_op): コンパイル時の定数式の展開をやめた．労多くし
+	  て益少ないと判断したので．
+
+Thu Nov 30 01:35:15 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* lib/tk.rb: {Radio,Check}Buttonのvariableの実装．
+
+	* eval.c (rb_yield_0): Block.callがネストした時のバグ．
+
+	* io.c (f_select): 常に配列3つをふくむ配列を返すように
+
+	* lib/tk.rb: fileeventをruby側で実装．
+
+Wed Nov 29 17:53:23 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* variable.c (rb_ivar_get): selfを常に指定するように．
+
+Tue Nov 14 00:07:29 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* lib/tk.rb: Tk4.0対応
+
+Mon Nov 13 16:23:32 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.93
+
+Thu Nov  9 23:26:01 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* gc.c (gc_mark): モジュールのMixinのマーク忘れ．
+
+	* parse.y (f_arglist): メソッド定義の引数を括弧で括らなくても良い
+	  ようにした．
+
+Wed Nov  8 00:17:51 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (rb_yield_0): 未初期化のローカル変数があった．
+
+	* eval.c (rb_eval): pendig signalのチェックをeval実行後に行うよう
+	  にした．でないとシグナルの発生と検出が遠く離れてしまう事がある．
+
+	* parse.y: class文のsuperclass部を定数から式に拡張した．
+
+	* lib/tk.rb: Tkのほぼ全ウィンドウクラスに対応．キャンバスとテキス
+	  ト上のオブジェクトが残っている．
+
+Tue Nov  7 08:18:37 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* signal.c (trap): ブロックを指定できるように．
+
+Mon Nov  6 16:44:00 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (f_caller): 呼出元の情報を得る．
+
+	* ext/tkutil/tkutil.c: wishのstderr出力を監視することで，エラー処
+	  理を行う．
+
+	* ext/tkutil/tkutil.c: wishとの通信部をCで記述．
+
+Sat Nov  4 01:12:59 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* sample/ruby-mode.el (ruby-calculate-indent): インデントの計算を
+	  もう少しスマートにした(正規表現のチェック，継続行のチェック)．
+
+	* eval.c (rb_call): 無限再帰を避けるため，関数のネストレベルの制限
+	  を行なう．
+
+	* lib/tk.rb: Tkインターフェース．まだ不完全だが．
+
+	* eval.c (rb_yield_0): 空のBlockのバグ．
+
+	* sample/ruby-mode.el (ruby-calculate-indent): 行末の演算子による
+	  行継続に対応．
+
+Fri Nov  3 12:56:21 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (rb_call): 本体が空の関数の実行にバグ．
+
+	* parse.y (var_extend): 文字列の末尾の変数展開のバグ．
+
+	* variable.c (rb_gvar_set): traceの評価時にに変数値を与えるように．
+
+	* eval.c (f_require): ruby scriptのrequireにbug．
+
+	* variable.c (rb_const_get): モジュールのinclude対策．
+
+Thu Oct 19 13:56:06 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* dln.c (dln_load): HP対応でのtypo.
+
+Wed Oct 18 17:39:39 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.92
+
+	* object.c (krn_type): オブジェクトの動的な型を返すメソッド．
+
+Tue Oct 17 00:48:18 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ruby.c (proc_options): -X オプション．chdirだけを行う．
+
+	* re.c (reg_search): 漢字コードを途中で変更できるように．コンパイ
+	  ル時のコードが変更された時にはマッチの直前に正規表現の再コンパイ
+	  ルを行う．定数KCODEから変数$KCODEへ．
+
+	* parse.y: ()のなかにcompexprを許す．
+
+	* re.c (reg_search): メモリリークを直した．
+
+Fri Oct 13 13:19:19 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* string.c (str_sub): 文字列置換にバグ．
+
+	* string.c (str_strip_bang): 文字列の後ろの長さの調整が行われてい
+	  なかった．
+
+	* re.c (reg_search): $&, $1...はローカルに束縛するようになった．呼
+	  び出したメソッドでのマッチは現スコープの$&などの値に影響しない．
+	  マッチの情報をスコープ外で得たいときには$~を使って束縛情報を持ち
+	  出す必要がある．
+
+Thu Oct 12 00:33:33 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* re.c (reg_search): String:split, String:indexでは$&, $1...が変化
+	  しないようにした．
+
+	* io.c (rb_str_setter): setterの仕様が変更になっていた．
+
+	* variable.c (f_trace_var): 第2引数を省略してイテレータとして呼べ
+	  るように．
+
+Wed Oct 11 11:50:59 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.91
+
+	* variable.c (var_setter): 引数が間違っていた．致命的バグ．
+
+	* io.c (pipe_open): $stderrの値が変更されている時にはそちらを
+	  子プロセスのstderrに設定する．
+
+Mon Oct  9 13:06:33 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* object.c (mod_to_s): モジュール内のモジュールは`::'を使った表現
+	  で表示されるように．
+
+	* variable.c (rb_gvar_set): 代入によるループが発生しないように，
+	  trace内での代入ではtraceを評価しない．
+
+	* struct.c (struct_equal): structのequal判定にクラスの一致を含めた．
+
+Sat Oct  7 00:18:32 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (rb_eval): defined?の機能を拡張(yieldのチェック，superの
+	  存在など)．
+
+Fri Oct  6 12:06:47 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.90
+
+	* st.c (st_foreach): 要素を削除した時に要素数が変化していなかった．
+
+	* hash.c (hash_values): バグ修正．keysを返していた…．
+
+	* parse.y (call_op): defined? の引数では定数の畳み込みを行わない
+	  (チェックする前にコンパイルエラーになっては困る)．
+
+	* スコープ生成の一部見直し．
+
+Thu Oct  5 00:29:43 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* 関数とクラスの命名規則を変更した．関数名，変数名の全面書き換え．
+
+	* gc.c (looks_pointerp): ヒープチェックの高速化．
+
+	* struct.c (Fstruct_aset): 構造体に対する`[]='．
+	(struct_set): 構造体メンバに対する代入．
+
+Wed Oct  4 09:54:07 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.89
+
+	* eval.c (Frequire): ダイナミックロードのエラーチェックを厳しく．
+
+	* struct.c: structの構造を完全に書き換えた．以前は順序付きの
+	  id->valueの連想配列であったが，今度は構造体毎に新しいクラスを生
+	  成するようにした．
+
+	* parse.y: `::'の意味をAssocの生成からクラス(モジュール)内の定数ア
+	  クセスへ変更．
+
+	* assoc.c: なくす．
+
+Tue Oct  3 13:31:08 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* variable.c (Ftrace_var): trace_var, 大域変数への書き込みhookを設
+	  定する．
+
+	* variable.c: global_entryの構成を書き換えた．これでtrace_varを実
+	  装できる．
+
+	* file.c (Ffile_stat): "&"で直前のfstatの結果も参照できるように．
+
+Fri Sep 29 14:15:13 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.88
+
+	* dln.c (dln_load): AIXとHPに対応したコードを入れた(動作は未確認)．
+
+	* ext/extmk.rb.in: 必要に応じて，定数EXTLIBを定義するように．
+
+	* dln.c (dln_load): dln独立に書き換える．将来の拡張用．
+	(load_1): dln_a_outにおいてソースコードでライブラリを明示的にロー
+	ドする必要がないように変更した．
+
+Thu Sep 28 13:31:37 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* sample/ruby-mode.el: もっとましなhilit19対応(正規表現)．
+
+Wed Sep 27 04:12:44 1995  Takahasi Mamoru  <taka@soum.co.jp>
+
+	* sample/test.rb: echoで-nを使わないように(SysV対策)．
+
+	* ext/extmk.rb.in: sub -> sub!
+
+Tue Sep 26 19:12:42 1995  Yasuo OHBA  <jammy@csg.mes.co.jp>
+
+	* dln.c (dln_find_1): `.', `..'から始まるパスに対応した.
+
+Mon Sep 25 12:33:03 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.87
+
+Sat Sep 23 10:00:18 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (Fmod_modfunc): メソッドをprivateにし，同時に特異メソッド
+	  も定義するメソッド．パッケージ的使い方のモジュール用．
+
+Fri Sep 22 11:02:44 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* lib/find.rb: findを提供するライブラリ
+
+	* variable.c (rb_define_variable): hookの設定を分離．
+	(add_hook): 1変数に対して複数のhookを設定できるように．
+
+Thu Sep 21 00:22:11 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* string.c (Fstr_frozen): 文字列が更新不可かどうかをチェックする述
+	  語メソッド．
+
+	* hash.c (Fhash_aset): keyが文字列の時，キーの内容が変化しないよう
+	  に，dupしてfreezeする．
+
+Wed Sep 20 16:12:44 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.86
+
+	* ext/extmk.rb.in (have_header): キャッシュにバグ．
+
+	* ext/extmk.rb.in (have_library): 引数の順序が変わった．
+
+Thu Sep 14 18:00:59 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* object.c (obj_is_instance_of): is_member_ofから名称変更．
+
+	Wed Sep 13 15:44:35 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* string.c (Fstr_tr_bang): 範囲外の文字に対する変換バグ．
+
+Tue Sep 12 14:27:58 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* file.c (Sfile_expand_path): expand_file_name -> expand_pathに名
+	  称変更．
+
+	* enum.c (Fenum_member): includes? -> member? に名称変更．
+
+	* string.c (Fstr_each_byte): StringはByteArrayであるという基本に戻っ
+	  て，eachの定義をeach_byteに変更した．今までのeachはeach_lineでア
+	  クセスできる．
+
+Mon Sep 11 18:31:17 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* file.c (cache_stat): ファイル名として"&"を指定すると直前の
+	  stat(2)の結果を再利用するように．
+
+Fri Sep  8 14:18:51 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ruby.texi: `!', `?'に対応してアップデート．
+
+	* parse.y: defined -> defined?
+
+	* file.c: FileOpの一文字メソッドをなくす．一文字テストはtestメソッ
+	  ドにまかせる．
+
+	* parse.y (yylex): 変数名の後ろに`?'も許す．述語メソッドの後ろに
+	  `?'を追加する．
+
+Thu Sep  7 20:01:33 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* string.c: 文字列の中身を更新するメソッドの名前の終りに`!'を付加．
+	  `!'の無いバージョンも用意した．
+
+	* parse.y: 変数名の後ろに`!'を許す．
+
+Wed Sep  6 14:12:19 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.85
+
+	* string.c (Fstr_dup): 文字列の複製を作る
+	(Fstr_freeze): 文字列の更新不可属性を設定できるように．
+	(Fsub/Fgsub): $_の内容をdupしてから置換を行うように．
+
+	* ruby.h (CLONESETUP): flagsの状態もコピー
+
+Tue Sep  5 01:27:50 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* sample/test.rb: 失敗の検出を厳しく．
+
+Fri Aug 25 14:31:02 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* process.c (Ffork): イテレータとしても動作するように．
+
+	* version 0.84
+
+	* signal.c (sig_beg): ハンドラが設定されている時には再設定しない．
+
+	* ext/extmk.rb.in (create_makefile): shared objectのリンクの際に
+	  `-l'オプションを指定するように．
+
+	* signal.c (trap): `EXIT'で終了処理を行う設定が出来る．
+
+Wed Aug 16 00:13:22 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* signal.c (sig_beg): デフォルトではbegin節の中でだけSIGINTを捕捉
+	  するように変更．
+
+	* io.c (io_ctl): fcntlを持たないシステムにも対応．
+
+	* 各ディレクトリに分散していたMANIFESTをまとめた．拡張モジュール毎
+	  には必要．
+
+	* string.c (Sstr_new,str_sub,Fstr_crypt): 引数を自動的に文字列に変
+	  換するように．
+
+Sat Aug 12 00:44:02 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* string.c (Fstr_crypt): PD cryptを用意した．
+
+Fri Aug 11 14:37:03 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* assoc.c (Fassoc_clone): assocもcloneできるように．
+
+	* io.c: マクロREAD_DATA_PENDINGの定義を変更(Linux対応)
+
+	* io.c (io_fptr_finalize): fptrの開放時の処理を指定できるように．
+
+Wed Aug  9 16:52:41 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* eval.c (rb_provided): 複数のfeatureをロードすると無限ループに落
+	  ちるという単純な(しかし凶悪な)ミス．
+
+	* ext/extmk.rb.in (install): dlopen対応を行った．今までdlnにしか十
+	  分に対応していなかった．
+
+Tue Aug  8 14:17:06 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.83
+
+Mon Aug  7 12:47:41 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y: resque -> rescue．恥ずかしいがtypoを残しておくわけには
+	  いかないよなあ．なんで今まで気がつかなかったのか…．
+
+Thu Aug  3 18:18:05 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* missing/nt.c: NT移植用の関数群をまとめた．
+
+	* variable.c (rb_const_get): また例外を発生するようにした．defined
+	  がある以上例外を発生させない理由がないので(例外が発生した方がタ
+	  イプミスの検出などの点で有利)．
+
+	* variable.c (Fautoload): autoloadを実装．今度は使えるか．
+
+Mon Jul 31 15:44:21 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (arg_ambiguous): 第1引数のあいまいさを警告(-vオプション
+	  で有効)．
+
+	* eval.c (rb_eval): `-v'オプションをつけて`def'が呼ばれると不必要
+	  なエラーメッセージが出た．
+
+	* parse.y (yylex): メソッドの第1引数の判定をもうちょっと賢くした．
+
+Fri Jul 28 19:04:43 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (yylex): `+/-/['の直前に空白が来るかどうかで動作を変更し
+	  た(混乱のもとか?)
+
+Wed Jul 26 09:21:23 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.82a
+
+	* sprintf.c (Fsprintf): `%s'で'\0'を含む文字列に対応．
+
+	* pack.c (Fpck_pack): packの要素確保のバグ．
+
+	* eval.c (Floop): 無限ループのイテレータ．
+
+	* io.c (next_argv): 存在しないファイル名が指定された時のエラー処理
+	  が行われていなかった．
+
+Mon Jul 24 17:37:34 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.82
+
+	* ext/extmk.rb.in (install): 拡張モジュールをstatic linkする場合は
+	  そのモジュールが既にrequireされたのと同じようにfeatureを設定する．
+	  これで拡張モジュールの機能が必要な時には(static linkされているか
+	  どうかにかかわらず)requireすればよくなる．
+
+	* eval.c (Frequire): `$"'に格納する文字列をフルパスでなくフィーチャ
+	  名とする．rubyスクリプトをロードした時には`.rb'，オブジェクトを
+	  ロードした時には`.o'をフィーチャ名に付加する．lispのrequireと
+	  provideの働きに(少し)近い．
+
+Thu Jul 20 12:50:05 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* Makefile.in (test): make testができるように．
+
+	* struct.c (struct_new): typo.
+
+	* eval.c (rb_eval): `defined'を追加．メソッド/変数/定数の定義状態
+	  を知る事が出来る．
+
+Wed Jul 19 18:04:01 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.81
+
+Mon Jul 17 14:53:51 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* variable.c (rb_const_get): 未初期化のCONSTANTの値をnilにした．し
+	  かし，今後また例外に戻す可能性はある．要はoptionalなクラス/モジュー
+	  ルが存在するかチェックしたいだけなんだな．
+
+	* st.c (int): grow_factorを固定にした(大嶋さんのマシンに対応)．
+
+Fri Jul 14 00:48:40 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* ext/extmk.rb.in: キャッシュのバグを修正．
+
+	* parse.y (var_extend): #{$数字}に対応した．
+
+	* dln.c (dln_load_1): `Init_FILENAME'だけを有効に．`init_*'は今後
+	  実行しない．
+
+	* ext/etc/etc.c : Etcモジュールを拡張モジュールとして分離．実はNT
+	  対応への布石だったりするかもしれない．
+
+Tue Jul 11 17:12:48 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* gcc -Wallで出たwarningを元にソースを変更．
+
+	* signal.c (trap): typo.
+
+Fri Jul  7 10:08:51 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.80
+
+	* ruby.texi: texinfo documentを提供．specとruby.1は無くなった．
+
+	* signal.c (Ftrap): 割込み禁止中の例外発生に対応．
+
+	* eval.c (Flambda): Blockオブジェクトを返す．Block.newと同義．
+
+Thu Jul  6 00:35:03 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* signal.c (Ftrap): SIG_DFLの処理を変更．SIGINTへのデフォルトハン
+	ドラを用意(例外を発生する)．
+
+	* file.c (Sfile_expand_fname): パス名を絶対パスに展開するメソッド．
+	(Sfile_basename): basenameを得るメソッド．拡張子も外せる．
+	(Sfile_dirname): basenameの反対．
+
+	* eval.c (rb_call): argument評価中の例外発生に対応．
+
+	* file.c (Ftest): `M', `A', `C'を追加.
+
+Tue Jul  4 12:36:33 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* file.c (Ftest): ファイルテスト用メソッド．
+
+	* ruby.c (proc_options): `-r'オプションを追加．
+
+	* parse.y (f_args): デフォルト引数を追加．
+
+	* eval.c (rb_call): 該当する引数が無い時，rest引数の値をnilに．
+
+	* numeric.c (num_equal): 数値以外との比較で例外が発生していた．
+	  FALSEを返すように．
+
+	* eval.c (masign): 多重代入のrest部の動作がおかしかった．
+
+Sat Jun 17 01:03:16 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* parse.y (gettable): 未初期化のローカル変数の参照(独立した識別子)
+	  は正式にメソッド呼び出しとした．
+
+	* parse.y (read_escape): tokenbufを使わないように修正．それにとも
+	  ない，`\C-x',`\M-x'などのエスケープ表現を復活．これでドキュメン
+	  トと実際の処理系が一致した．
+
+Thu Jun 15 15:42:00 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* re.c (re_regcomp): cacheのチェックを改善．
+
+Mon Jun 12 18:50:51 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* version 0.79
+
+Sat Jun 10 00:25:01 1995  Yukihiro Matsumoto  <matz@caelum.co.jp>
+
+	* re.c (re_regcomp): cache判定に`$='の値も反映させた．
+
+	* sample/test.rb: test suite作成．
+
+Fri Jun  9 15:58:34 1995  Yukihiro Matsumoto  <matz@ix-02>
+
+	* re.c (re_regcomp): cacheの判定が間違っていた．
+
+Fri Jun  9 00:01:35 1995  Yukihiro Matsumoto  (matz@dyna)
+
+	* eval.c (rb_yield): block構造体に初期化していないメンバ(iter)があっ
+	  たのでイテレータのネストが正しく動作しなかった．
+
+Thu Jun  8 00:59:03 1995  Yukihiro Matsumoto  (matz@dyna)
+
+	* re.c (=~): String以外との比較がFALSEを返すように(例外を発生して
+	  いた)．
+
+	* extmk.rb.in: 判定した値をファイルにキャッシュするようにした．
+
+	* assoc.c (to_a): to_aメソッドが再定義されていなかった．
+
+	* eval.c (rb_eval): 初期化されていないローカル変数へのアクセスを引
+	  数の無いメソッド呼び出しと解釈する．ただし，(現状では)メソッドが
+	  定義されていない場合，エラーにせず変数未初期化のwaringを出して
+	  nilを返している．「ruby -pe print」などが実行できるという意味で
+	  はありがたいこの仕様は，しかし今後の検討が必要である．-- メソッ
+	  ド呼び出しとするのを止めるか(以前の仕様)，いつもメソッド呼び出し
+	  とする(未定義ならばエラー)か，今の仕様で行くか．
+
+	* eval.c (rb_eval): 初期化されていないローカル変数へのアクセスで
+	  (evalなどで)初期化された事が分かった時には以後初期化されたローカ
+	  ル変数とみなす．
+
+Wed Jun  7 11:58:12 1995  Yukihiro Matsumoto  <matz@ix-02>
+
+	* eval.c (rb_fail): 例外処理後も`$!'をクリアしないように．
+	  (rb_fail): `$!'変数に最後に改行を追加しない．
+
+	* io.c (Fprint): privateメソッドに変更．引数を取らない時の動作を変
+	  更(`$_'を出力する)．
+	  (Fio_print): 出力先指定のprintメソッド．
+	  (Fio_printf): 出力先指定のprintfメソッド．
+
+	* parse.y: not演算子の追加．優先順位の低い`!'演算子．
+
+Mon Jun  5 19:00:55 1995  Yukihiro Matsumoto  <matz@ix-02>
+
+	* version 0.78
+
+Fri Jun  2 17:52:03 1995  Yukihiro Matsumoto  <matz@ix-02>
+
+	* ruby.c (proc_options): -Iオプションで`$:'への追加される順番を修
+	  正した．
+
+Fri Jun  2 00:36:34 1995  Yukihiro Matsumoto  (matz@dyna)
+
+	* parse.y: while修飾子の動作を通常のwhileと同じにした．ただし，
+	  begin式へのwhile修飾子だけはdo..while型のループとなる．
+
+Wed May 31 18:36:30 1995  Yukihiro Matsumoto  <matz@ix-02>
+
+	* version 0.77
+
+Mon May 29 18:39:37 1995  Yukihiro Matsumoto  <matz@ix-02>
+
+	* ext/extmk.rb.in (install): 拡張モジュールもインストールできるよ
+	  うに．
+
+Fri May 26 14:43:01 1995  Yukihiro Matsumoto  <matz@ix-02>
+
+	* process.c (Fsystem): 戻り値をサブプロセスの失敗/成功を表す真偽値
+	  にした．終了ステータスは`$?'で得る．
+
+Tue May 23 10:58:11 1995  Yukihiro Matsumoto  <matz@ix-02>
+
+	* string.c (Fstr_upto): 無限ループに陥らないように．
+
+	* parse.y (cond): `||'などの右辺に制御式が書けるように，条件式がか
+	  ならずしも値を持たなくても良いようにした．
+
+	* ext/marshal/marshal.c: オブジェクトの読み書きをメソッドの再定義
+	  でコントロールできるように．インスタンスが`_dump_to'というメソッ
+	  ドを定義している時はそちらを使うように．
+
+	* ext/extmk.rb.in: static linkも設定できるような仕様にした．
+	  ext/Setupというファイルにディレクトリ名を記述するとそのディレク
+	  トリに存在するモジュールはstatic linkされる(はず)．
+
+	* eval.c (rb_eval): `..'を文法に組み込み，`..'と`...'の動作をperl
+	  に合わせた．
+
+Sat May 20 01:22:48 1995  Yukihiro Matsumoto  (matz@dyna)
+
+	* io.c (select): timeout時と割込み時の動作の明確化．
+
+Fri May 19 15:33:23 1995  Yukihiro Matsumoto  <matz@ix-02>
+
+	* version 0.76
+
+Fri May 19 00:48:08 1995  Yukihiro Matsumoto  (matz@dyna)
+
+	* string.c (Fstr_each): イテレータブロック中で文字列の変更が行われ
+	  たかどうかをチェック．ポインタの値が変わっていれば例外を発生する．
+
+	* ruby-mode.el: ruby-electric-braceの新設．
+
+Thu May 18 12:27:23 1995  Yukihiro Matsumoto  <matz@ix-02>
+
+	* string.c (Fstr_tr): trの置換対象に`\0'を含む時に正しく置換を行わ
+	  ないバグがあった．更に置換文字列をASCII順に指定しないと動作しな
+	  い問題もあった．結果としてtrを書き換えたので，copyrightの問題は
+	  無くなった(と思う)．
+
+	* gc.c (gc): the_scopeをマークしていなかったので，ローカル変数の指
+	  しているオブジェクトが間違って開放される場合があった．
+
+	* gc.c (mark_locations_array): 若干の高速化．
+
+Mon May 15 11:43:49 1995  Yukihiro Matsumoto  <matz@ix-02>
+
+	* ext/extmk.rb.in: Dynamic Loadモジュールのコンパイル用チェックを
+	  行うruby script．autoconfに近い感覚で使える．新しいモジュールを
+	  提供したい人はextの下にディレクトリを作るだけで良い．必須のファ
+	  イルはファイル名の一覧を記録した`MANIFEST'というファイルのみ．必
+	  要に応じて`depend'(ファイルの依存関係を記述するファイル gcc -MM
+	  の出力)，`extconf.rb'(コンパイル用にライブラリと関数の存在チェッ
+	  クするファイル)を用意できる．
+
+	* eval.c (rb_call): rubyメソッドの引数チェック時に未初期化の
+	  jmp_bufを使用していた．
+
+	* parse.y: `or'と`and'の優先順位を同じにした．
+
+Wed May  3 18:21:36 1995  Yukihiro Matsumoto  (matz@dyna)
+
+	* dln.c: Linuxでは`__.SYMDEF/'であった．
+
+	* dln.c: system callのエラーチェックを忘れていた．
+
+Wed Apr 26 09:50:56 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y: イテレータブロックの変数宣言を`|'で括るようにした．これ
+	  でイテレータ変数がない時は宣言そのものを省略できる．文法の変更は
+	  久しぶりだ．
+
+Tue Apr 25 12:04:17 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c(require): loadからダイナミックロードの機能を移してきた．
+	  さらに拡張子の補完機能を追加してユーザがdln/dlopenの差を意識する
+	  必要のないようにした．
+
+	* string.c(sub,sub): イテレータとしても動作するように．
+
+	* object.c: init_object -> initialize.
+
+Mon Apr 24 14:22:39 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* NEWS-OS 3.4対応
+
+	* io.c: Solarisのstdioの動作が違うようだ．signalでEOFを返してしま
+	  う…．perlでも同様の問題がある．
+
+Fri Apr 21 20:04:39 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* version 0.75
+
+	* signal.c: trapがなくなっていた．うーむ．
+
+	* configure: Solaris 2.3対応．
+
+	* io.c: #elifのないcppもある．
+
+	* dir.c: autoconf 2.xへの対応が不十分
+
+Thu Apr 20 12:31:24 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* version 0.74
+
+	* env.h, gc.c, regex.c: IRIXへの移植対応
+
+	* configure: dlopen用にpicを生成するoptionの検出のため，システムタ
+	  イプをチェックするように．
+
+Tue Apr 18 19:08:17 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* gc.c(xrealloc): ptr=nilの時，malloc()と同じ働きを
+
+	* array.c(astore): 空の配列の0番目の要素に代入するとsize=0で
+	  realloc()を呼んでいた．
+
+	* configure, glob.c: Solaris 2.xでコンパイルできるように
+
+Mon Apr 10 18:36:06 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* version 0.73
+
+Fri Apr  7 13:51:08 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* cons.c->assoc.c: consの余計な機能は外してpairとしての機能だけを
+	  残した．Enumerableをincludeするのもやめた．
+
+	* string.c(esub): 文字列置換イテレータ．perlのs///eの相当する．
+
+Wed Apr  5 11:35:21 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* version 0.72
+
+	* EWS4800対応
+
+	* file.c: utimesがない時はutimeを使うように．
+
+Mon Apr  3 15:19:41 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* version 0.71
+
+	* regexp.c(re_match): バグがあった．match_2を削除した時にenbugして
+	  いたのだった．
+
+Mon Mar 27 15:41:43 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* dict.c: Dict->Hashに全面的に移行．
+
+Thu Mar 23 20:30:00 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* dbm.c,socket.c: extディレクトリに分離．
+
+	* configure: dln周りのチェックの強化
+
+	* dln.c: initの呼び出しをdlopen()版に合わせた．
+
+Mon Mar 20 17:45:08 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* configure: autoconf 2.2に対応(一部)．
+
+Fri Mar 17 15:56:44 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* dln.c: dlopenのあるマシンではそちらを使うように．ただし，ちゃん
+	  と動いているかどうかは自信がない．
+
+	* regex.c: virtual concatinationをやめた．
+
+Thu Mar 16 11:32:57 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* version 0.70
+
+	* eval.c,regex.c: gccでのコンパイルエラー．
+
+	* io.c: inplace-editで拡張子が指定されない場合，もとのファイルを削
+	  除する．
+
+Wed Mar 15 14:59:18 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* version 0.69
+
+	* eval.c(method_missing): unknownから名称変更．
+
+	* eval.c(single_method_added): 特異メソッドが定義された時に呼ばれ
+	  るメソッド．hookとして使える．実際に定義される直前に呼ばれる．
+
+Tue Mar 14 14:46:44 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* ruby.c(proc_options): 引数の解析を自分でやることにより引数指定の
+	  方法がperlに近付いた．getopt_longはもう使わない．
+
+	* dir.c(glob): `{}'のネストを許すようにした．
+
+Mon Mar 13 17:56:25 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* glob.c: Glob(ワイルドカードオブジェクト)はなくなった．ワイルドカー
+	  ドの展開はDir.glob(文字列)を使う．ワイルドカードのマッチは正規表
+	  現で代用．
+
+Fri Mar 10 18:35:46 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c: Mathのようなモジュールは自分自身でextendする．
+
+	* eval.c: クラスやモジュールを定義する時，既に同名のものがあれば追
+	  加定義となるように．ただし．superクラスの違いなどはチェックする．
+
+	* regex.c: debug.
+
+	* math.c: 定数PIとEを定義．
+
+Thu Mar  9 21:35:12 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* regex.c: EUC,SJISモードでは0x80以上の8進，16進リテラルを禁止．
+
+	* regex.c: クラス内でも数値リテラル・文字クラスが使えるようした．
+
+Wed Mar  8 17:39:05 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* regex.c: \200など括弧の数以上の表現は8進リテラルと解釈する．ただ
+	  し，\1から\9までは例外．
+
+	* regex.c: \9以上のリファレンスも有効にした．
+
+Tue Mar  7 14:26:01 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c(public/private): スコープ制御メソッドの名称変更．静的なア
+	  クセスも出来るようにしてみたが，不採用．
+
+Mon Mar  6 19:34:32 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c(inlcude): メソッド化．動的にモジュールをインクルードでき
+	  るように．さらに任意のオブジェクトにもモジュールをインクルードで
+	  きるメソッド `extend'も用意した．
+
+	* parse.y: 文法からincludeを削除．メソッド化．
+
+Tue Feb 28 15:35:10 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y: 配列，連想配列の最後に`,'をおけるように．
+
+Fri Feb 24 13:15:43 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* version 0.68
+
+Thu Feb 23 11:19:19 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c: resque節のselfの値が間違っていた．
+
+	* eval.c(rb_clear_cache): キャッシュのクリアし忘れがあった．
+
+	* eval.c: 定数のスコープをクラス内の静的スコープに変更した．これに
+	  よって，特異メソッドから参照される定数は，レシーバのクラスではな
+	  く，定義されたスコープのクラスの定数となる．
+
+Wed Feb 22 00:51:38 1995  Yukihiro Matsumoto  (matz@dyna)
+
+	* regex.c: ignorecaseを正規表現のコンパイル前に指定しないと正しく
+	  動作しない．修正．
+
+	* string.c(toupper,tolower): bug fix.
+
+	* ENV,VERSION: readonly変数から定数へ．
+
+Tue Feb 21 18:56:56 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* io.c(STDIN, STDOUT, STDERR): 定数として定義．
+
+	* io.c(select): bug fix.
+
+	* version 0.67
+
+Mon Feb 20 16:10:14 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y(yylex): 定数を`%識別子'から，第1文字が大文字の識別子に変
+	  更．それにともないクラスは定数となった．
+
+	* eval.c: クラス定義内のselfがクラス定義外部のthe_classだった．
+
+	* variable.c(rb_name_class): クラス名をインスタンス変数に格納する．
+
+Thu Feb 16 15:36:17 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y: BLOCKをbraceで表現する文法に変更したものを作ってみる．
+	  MLに提示してみるが反応がない．
+
+	* object.c(do,forever): なくした．
+
+Wed Feb 15 13:20:49 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* re.c(new): 第2引数が与えられて，かつnilでないときだけ設定するよ
+	  うに(以前はnilの時にも設定を行なっていた)．
+
+	* parse.y(parse_regexp): 正規表現リテラルで大文字小文字を無視する
+	  かどうか指定できるように．
+
+Tue Feb 14 00:55:33 1995  Yukihiro Matsumoto  (matz@dyna)
+
+	* parse.y: (compexpr) -> (expr).
+
+Fri Feb 10 16:30:00 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* ruby.c(load_file): scriptを読み込む時だけ"#!"の解析を行うように．
+
+	* ruby.c(readin): ファイル読み込み時に先頭に"#!"があり，その行が
+	  "ruby"という文字列を含む時，rubyに引数が与えられていれば，その引
+	  数も有効になる．
+
+	* parse.y(yylex): コメント行の終りが`\'であった時，次の行に継続し
+	  ているとみなすようにした．
+
+Thu Feb  9 16:18:37 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* version 0.66
+
+	* parse.y: protectをbeginに変更．begin..endは例外処理だけでなく，
+	  文括弧としても働くことになった．
+
+Wed Feb  1 19:48:24 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* version 0.65
+
+	* string.c(str_replace): 置き換える文字列の長さが等しい時メモリコ
+	  ピーをしない．
+
+	* string.c(rindex): バグ修正．
+
+Mon Jan 30 11:23:05 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y(value_expr): ifのチェックを追加．
+
+	* gc.c(gc_mark): free cellの扱いにバグ．
+
+	* parse.y: 文法の変更(よりシンプルに)．例外を減らした．
+
+Thu Jan 26 00:52:55 1995  Yukihiro Matsumoto  (matz@dyna)
+
+	* parse.y: 引数として連想配列を置くことができるように．この場合，
+	  連想配列リテラルが最終引数となる．
+
+	* parse.y: 配列参照の`[]'内が空でもよいことにした．
+
+Tue Jan 24 14:45:15 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* class.c(rb_include_module): `-v'を指定した時にはincludeしたモジュー
+	  ルとクラス定数が衝突していないかチェックする．
+
+Mon Jan 23 10:42:09 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y(rb_class2name): メタクラスに関するbug fix.
+
+	* dict.c: Dict[..]で辞書の生成が出来るように．
+
+	* array.c: Array[..]で配列の生成が出来るように．
+
+	* parse.y: 辞書の表現として{a,b,..}という形式も許すように．
+
+Fri Jan 20 10:28:38 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* re.c(Regexp.quote): 正規表現をエスケープするメソッド．
+
+	* 無駄なrb_intern()を減らした．
+
+	* parse.y: `!', `!=', `!~'を特殊演算子にする．よってこれらは再定義
+	  できなくなった．
+
+Wed Jan 18 13:20:41 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y: 文法の整理(unless,untilをなくした)．
+
+Tue Jan 17 11:11:27 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c: defでメソッド再定義時にはスーパークラスのメソッドの可視
+	  性を継承する．最初の定義の時は今までと同じデフォルト(トップレベ
+	  ルで関数的，クラス定義内で通常メソッド)．
+
+	* object.c(Class#new): オブジェクトの生成時に関数的メソッド
+	  init_objectが必ず呼ばれるように変更．
+
+	* eval.c: 未定義のメソッドに対してunknownメソッドが呼ばれるように
+	  なった．エラー表示が今までと同じになるようにenvを調節している．
+
+Fri Jan 13 14:40:30 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* gc.c: gcを若干書き換えて整理した．が，あまり変化はなかったようだ．
+
+	* parse.y(yylex): symbolを\symから:symに変更した．
+
+Thu Jan 12 01:39:28 1995  Yukihiro Matsumoto  (matz@dyna)
+
+	* eval.c: 新規関数 rb_eval_string()．
+
+	* gc.c: gc_mark()を一部非再帰化．
+
+	* variable.c(rb_ivar_{get,set}): インスタンス変数のアクセス周りで
+	  チェックが足りなかった．
+
+	* variable.c: クラス定数とインスタンス変数でハッシュテーブルを共有
+	  するようにした．
+
+	* ruby.h: iv_tblをRBasicからRObjectとRClassへ移動した．これにより，
+	  ObjectとClass,Moduleしかインスタンス変数を持てなくなる．が，メモ
+	  リ効率は若干向上する．
+
+Tue Jan 10 00:58:20 1995  Yukihiro Matsumoto  (matz@dyna)
+
+	* 0.64 released
+
+	* eval.c: レシーバと引数は常にiterではない．
+
+	* cons.c(aref,aset): negative offset対応．
+
+Mon Jan  9 14:40:39 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y: foo{..}の形式において，fooをローカル変数やクラス名では
+	  なく，引数なしの関数型メソッド呼び出しとみなすようにした．
+
+	* list.c -> cons.c: 名称変更(クラス名も)．
+
+	* list.c: a::b::c::nilをリスト(a b c)とみなすlisp形式から，a::b::c
+	  をリスト(a b c)とみなすruby形式に変更．[], []=, eachもそれに会わ
+	  せた仕様とする．
+
+	* list.c: consペアとしての機能を強調．仕様変更．
+
+Sat Jan  7 01:26:26 1995  Yukihiro Matsumoto  (matz@dyna)
+
+	* eval.c: 自己代入の不具合修正．
+
+	* eval.c(masign): 多重代入が配列もリストもとれるようにした．
+
+	* list.c: assocを2要素の配列からList(CONSペア)に変更した．
+
+Fri Jan  6 13:42:12 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y: a[b]+=cやa.b+=cなどの自己代入形式で，aやbを2度評価しな
+	  くなった．
+
+	* eval.c: iterator設定のバグフィックス．
+
+	* list.c: Listクラスを新設．
+
+Thu Jan  5 13:55:00 1995  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y: SCOPEのメモリリークをなくした．
+
+	* eval.c: built-inメソッドへの引数の引き渡し方を変更して，配列の生
+	  成数を減らした．
+
+	* re.c: match-dataを毎回生成することをやめた．`$~'をアクセスした時
+	  にon-demandで生成する．
+
+	* string.c etc: 不必要なmemmoveをmemcpyに置換．
+
+	* parse.y: =~, !~は副作用があるのでコンパイル時に展開できない．
+
+Tue Jan  3 02:04:36 1995  Yukihiro Matsumoto  (matz@dyna)
+
+	* eval.c: rest引数のbug fix.
+
+	* eval.c,gc.c: scopeをオブジェクトにした．
+
+	* eval.c: envとscopeの扱いを変更した．
+
+Wed Dec 28 09:46:57 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y: evalでローカル変数が追加された場合に対応した．
+
+	* parse.y: 演算子を含むaliasのbug fix.
+
+Tue Dec 27 16:45:20 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y: def A Bをalias A Bに変更．
+
+	* eval.c: alias関係のbug修正．nodeをオブジェクト化した時にenbugし
+	  たようだ．
+
+	* signal.c: システムコールの再定義を止めた．
+
+	* io.c(select): write/exceptのフラグ設定にバグ．
+
+	* Makefile.in: static link用オプションをMake変数として独立させた．
+
+Tue Dec 20 00:46:19 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* 0.63 released
+
+	* eval.c(rb_call): superの呼び出しで落ちる．argc, argvの設定を忘れ
+	  ていた．
+
+	* parse.y(read_escape): 展開エラー．
+
+	* variable.c: 定義済みの変数のhookを変更しないように．
+
+Mon Dec 19 12:01:10 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y(cond): 条件式に代入式が置かれた場合，`-v'オプションで警
+	  告が出るように．
+
+	* parse.y(**): 冪乗演算子`**'の優先順位を単項演算子より高くした．
+
+	* parse.y(and,or): 優先順位の低い演算子`and', `or'.
+
+	* 0.62 released.
+
+	* eval.c: 不必要になったPUSH_ENV, POP_ENVを減らした．
+
+	* env.h: ENVIONからselfをはずした．PUSH_ENVはsuperの準備のためだけ
+	  に用いることにした．
+
+	* eval.c: 下記のオブジェクト化で遅くなった実行速度をもとに戻した．
+
+Mon Dec 17 23:01:10 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* eval.c: env.{argv,argc}とscope.local_varsのオブジェクト化．
+
+	* eval.c: 1スコープ内で複数Blockを生成したときのバグを修正．
+
+Fri Dec 16 15:52:06 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* parse.y: `&&'と`||'の両辺はいつでも条件式とした．
+
+Thu Dec 15 00:16:04 1994  Yukihiro Matsumoto  (matz@dyna)
+
+	* eval.c(Block): Blockオブジェクトを実現．
+
+	* node.h: NODE_QLISTはなくなった．
+
+	* eval.c(rb_call): 引数への代入を名前で一つずつ代入するのをやめて，
+	  一度にコピーするようにした．
+
+	* eval.c(rb_call): rubyで記述されたメソッドへの引数渡しをinline化．
+
+	* eval.c: イテレータ判定処理の全面書き換え．不適切なイテレータ呼び
+	  出しをなくした．例えば「[foo(),bar()]{i|baz(i)}」でfooもbarもイ
+	  テレータとして呼び出され*ない*．
+
+	* eval.c(rb_call): SCOPE処理をinline化．メソッド呼び出しの若干の高
+	  速化．
+
+Wed Dec 14 18:09:33 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* node.h: nodeもオブジェクトにする．よってGCで回収される．
+
+Thu Dec  8 14:17:29 1994  Yukihiro Matsumoto  (matz@ix-02)
+
+	* 0.60 released - alpha test baseline.
diff --git a/doc/ChangeLog-1.8.0 b/doc/ChangeLog-1.8.0
index e16c7f4f20..0d00266735 100644
--- a/doc/ChangeLog-1.8.0
+++ b/doc/ChangeLog-1.8.0
@@ -42,7 +42,7 @@ Sun Aug  3 23:56:50 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 Sun Aug  3 22:07:47 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
-	* ext/tk/lib/tkentry.rb: support 'validatecommand' option of 
+	* ext/tk/lib/tkentry.rb: support 'validatecommand' option of
 	  TkEntry/TkSpinbox widget
 
 	* ext/tk/sample/{demos-en,demos-jp}/spin.rb: add
@@ -60,7 +60,7 @@ Sun Aug  3 18:03:44 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
 
 Sun Aug  3 08:53:06 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
-	* ext/tk/sample/{demos-en,demos-jp}/image3.rb: add 
+	* ext/tk/sample/{demos-en,demos-jp}/image3.rb: add
 
 	* ext/tk/lib/tkcanvas.rb: bug fix on Tk object ID management
 
@@ -84,7 +84,7 @@ Sat Aug  2 23:51:52 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 Sat Aug  2 09:58:13 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
-	* ext/tk/lib/tk.rb: bug fix --- TkGrid failed to treat 
+	* ext/tk/lib/tk.rb: bug fix --- TkGrid failed to treat
 	  RELATIVE PLACEMENT
 
 	* ext/tk/sample/demos-en/, demos-jp/: add or modify some
@@ -122,7 +122,7 @@ Sat Aug  2 14:02:39 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 Sat Aug  2 09:58:13 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
-	* ext/tk/lib/tk.rb: bug fix --- forgot to entry a widget class 
+	* ext/tk/lib/tk.rb: bug fix --- forgot to entry a widget class
 	  name of 'labelframe' widget
 
 	* ext/tk/sample/{demos-en,demos-jp}/{labelframe.rb,paned1.rb,
@@ -238,7 +238,7 @@ Fri Aug  1 09:54:38 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 Fri Aug  1 04:58:55 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
-	* ext/tk/lib/tk.rb: bug fix --- forget to eval given block to 
+	* ext/tk/lib/tk.rb: bug fix --- forget to eval given block to
 	  TkRoot.new method
 
 	* ext/tk/sample/tkoptdb-safeTk.rb: new sample script
@@ -255,13 +255,13 @@ Thu Jul 31 23:44:00 2003  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
 
 Thu Jul 31 23:04:45 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
-	* ext/tk/sample/resource.en, ext/tk/sample/resource.jp: 
+	* ext/tk/sample/resource.en, ext/tk/sample/resource.jp:
 	  wrong resource file format
 
-	* ext/tk/lib/tk.rb: add Tk::Encoding.{encoding_convertfrom, 
+	* ext/tk/lib/tk.rb: add Tk::Encoding.{encoding_convertfrom,
 	  encoding_convertto}
 
-	* ext/tk/lib/tk.rb: add TkOptionDB.read_with_encoding to read 
+	* ext/tk/lib/tk.rb: add TkOptionDB.read_with_encoding to read
 	  non-utf8 resource file
 
 Thu Jul 31 23:02:47 2003  NAKAMURA Usaku <usa@ruby-lang.org>
@@ -274,15 +274,15 @@ Thu Jul 31 20:52:40 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 	* ext/tk/lib/tk.rb: (IMPORTANT BUG FIX) scan of event keywords
 	  doesn't work on recent versions of Tck/Tk
 
-	* ext/tk/lib/tk.rb: initialize error of instance variable on 
+	* ext/tk/lib/tk.rb: initialize error of instance variable on
 	  TkComposite
 
-	* ext/tk/lib/multi-tk.rb: initialize error on encoding-system on 
+	* ext/tk/lib/multi-tk.rb: initialize error on encoding-system on
 	  MultiTkIp
 
 	* ext/tk/lib/tk.rb: trouble on destroying widgets
 
-	* ext/tk/sample/demos-en/, demos-jp/: add JP and EN version of 
+	* ext/tk/sample/demos-en/, demos-jp/: add JP and EN version of
 	  Ruby/Tk widget demos
 
 Thu Jul 31 15:25:12 2003  NAKAMURA Usaku <usa@ruby-lang.org>
@@ -311,13 +311,13 @@ Thu Jul 31 08:18:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
 
 Thu Jul 31 07:59:18 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
-	* ext/tk/lib/tk.rb: wrap the command-proc of TkScale --- pass 
+	* ext/tk/lib/tk.rb: wrap the command-proc of TkScale --- pass
 	  the numeric object to the proc
 
-	* ext/tk/lib/tk.rb: better support for widgets created on 
+	* ext/tk/lib/tk.rb: better support for widgets created on
 	  Tk interpreter (without Ruby)
 
-	* ext/tk/lib/multi-tk.rb: a little more stable on Multiple Tk 
+	* ext/tk/lib/multi-tk.rb: a little more stable on Multiple Tk
 	  interpreters running
 
 Thu Jul 31 00:17:19 2003  Shugo Maeda  <shugo@ruby-lang.org>
@@ -411,17 +411,17 @@ Wed Jul 30 07:23:14 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
 	* ext/tk/lib/tkentry.rb: fix lack of methods for TkEntry
 
-	* ext/tk/lib/multi-tk.rb, ext/tk/lib/tk.rb, 
-	  ext/tk/lib/tkdialog.rb, ext/tk/lib/tkentry.rb, 
+	* ext/tk/lib/multi-tk.rb, ext/tk/lib/tk.rb,
+	  ext/tk/lib/tkdialog.rb, ext/tk/lib/tkentry.rb,
 	  ext/tk/sample/safe-tk.rb, ext/tk/sample/tktimer2.rb: bug fix
 
-	* ext/tk/lib/multi-tk.rb: MultiTkIp.new_* accept a block to 
+	* ext/tk/lib/multi-tk.rb: MultiTkIp.new_* accept a block to
 	  eval under the new interpreter
 
 Wed Jul 30 04:36:30 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
-	* ext/tcltklib/tcltklib.c, 
-	  ext/tk/lib/tk.rb, ext/tk/lib/tkafter.rb: additional check of 
+	* ext/tcltklib/tcltklib.c,
+	  ext/tk/lib/tk.rb, ext/tk/lib/tkafter.rb: additional check of
 	  Tk interpreters' status for a little more safety
 
 Wed Jul 30 02:37:12 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
@@ -514,14 +514,14 @@ Mon Jul 28 22:57:52 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 Tue Jul 29 16:20:36 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
-	* ext/tcltklib/tcltklib.c: bug fix and 
+	* ext/tcltklib/tcltklib.c: bug fix and
 	  change mainloop_abort_on_no_widget_cmd => mainloop_abort_on_exception
 	  ( to avoid thread timing trouble on accessing destroyed widgets )
 
-	* ext/tk/lib/multi-tk.rb: change default mode of 
+	* ext/tk/lib/multi-tk.rb: change default mode of
 	  mainloop_abort_on_exception on multi-tk.rb
 
-	* ext/tk/lib/multi-tk.rb: fix a bug of the procedure for 
+	* ext/tk/lib/multi-tk.rb: fix a bug of the procedure for
 	  'Delete' button on the safe-Tk frmae
 
 Tue Jul 29 12:22:28 2003  why the lucky stiff  <ruby-cvs@whytheluckystiff.net>
@@ -541,8 +541,8 @@ Tue Jul 29 12:15:37 2003  NAKAMURA Usaku <usa@ruby-lang.org>
 
 Tue Jul 29 08:05:30 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
-	* ext/tk/lib/tk.rb, ext/tk/lib/tkdialog.rb, ext/tk/lib/tktext.rb, 
-	  ext/tk/sample/tkbiff.rb, ext/tk/sample/tkdialog.rb, 
+	* ext/tk/lib/tk.rb, ext/tk/lib/tkdialog.rb, ext/tk/lib/tktext.rb,
+	  ext/tk/sample/tkbiff.rb, ext/tk/sample/tkdialog.rb,
 	  ext/tk/sample/tkform.rb: bug fix ( tested with Ruby/Tk widget demo )
 
 Tue Jul 29 04:22:08 2003  why the lucky stiff  <ruby-cvs@whytheluckystiff.net>
@@ -571,7 +571,7 @@ Tue Jul 29 01:24:32 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 	* ext/tk/lib/multi-tk.rb: bug fix and pack options are pssed
 	  to the safeTk container
 
-	* ext/tk/sample/safe-tk.rb: add example for pack options of 
+	* ext/tk/sample/safe-tk.rb: add example for pack options of
 	  safeTk container
 
 Mon Jul 28 23:23:08 2003  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
@@ -643,7 +643,7 @@ Sun Jul 27 19:35:06 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 	* ext/tcltklib/tcltklib.c: add some methods to support
 	  multiple interpreters (low level)
 
-	* ext/tk/lib/multi-tk.rb: new library to support multiple Tk 
+	* ext/tk/lib/multi-tk.rb: new library to support multiple Tk
 	  interpreters (high level)
 
 	* ext/tcltklib/demo/safeTk.rb: new sample of safeTk interpreter
@@ -732,12 +732,12 @@ Fri Jul 26 00:04:25 2003  NAKAMURA, Hiroshi  <nakahiro@sarion.co.jp>
 
 Fri Jul 25 16:43:03 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
-	* ext/tcltklib/tcltklib.c: add TclTkIp#create_slave, 
+	* ext/tcltklib/tcltklib.c: add TclTkIp#create_slave,
 	  TclTkIp#_make_safe and TclTkIp#safe?
 
 	* ext/tcltklib/MANUAL.euc: modify descriptions
 
-	* ext/tk/lib/tk.rb: bug fix [ruby-talk:76980] and modify to 
+	* ext/tk/lib/tk.rb: bug fix [ruby-talk:76980] and modify to
 	  support multi Tk IPs
 
 	* ext/tk/lib/tkafter.rb: modify to support multi Tk IPs
@@ -747,10 +747,10 @@ Fri Jul 25 15:47:39 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
 	* ext/openssl/extconf.rb: add check for BN_rand_range() and
 	  BN_pseudo_rand_range().
 
-	* ext/openssl/ossl_bn.c (ossl_bn_s_rand_range): should raise 
+	* ext/openssl/ossl_bn.c (ossl_bn_s_rand_range): should raise
 	  NotImplementedError if BN_rand_range() wan not defined.
 
-	* ext/openssl/ossl_bn.c (ossl_bn_s_pseudo_rand_range): should raise 
+	* ext/openssl/ossl_bn.c (ossl_bn_s_pseudo_rand_range): should raise
 	  NotImplementedError if BN_pseudo_rand_range() wan not defined.
 
 	* ext/openssl/ossl_pkcs7.c (ossl_pkcs7_s_encrypt): avoid compiler
@@ -1110,7 +1110,7 @@ Thu Jul 17 13:42:53 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
 
 Thu Jul 17 06:40:28 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
-	* ext/tk/lib/tk.rb: recover and fix typo : Tk.chooseDirectory 
+	* ext/tk/lib/tk.rb: recover and fix typo : Tk.chooseDirectory
 	  (Tk8.4 feature)
 
 Wed Jul 16 16:23:58 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
@@ -1139,7 +1139,7 @@ Tue Jul 15 14:38:21 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 Tue Jul 15 03:30:41 2003  why the lucky stiff  <ruby-cvs@whytheluckystiff.net>
 
-	* ext/syck/rubyext.c (syck_mark_emitter): forgot to rb_gc_mark the 
+	* ext/syck/rubyext.c (syck_mark_emitter): forgot to rb_gc_mark the
 	  outgoing IO object.
 
 Sun Jul 13 14:55:36 2003  Koji Arai  <jca02266@nifty.ne.jp>
@@ -1196,7 +1196,7 @@ Fri Jul 11 16:09:09 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 Fri Jul 11 07:17:47 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
-	* ext/tk/lib/tk.rb: not create a Tcl/Tk interpreter if already 
+	* ext/tk/lib/tk.rb: not create a Tcl/Tk interpreter if already
 	  defined TkCore::INTERP
 
 	* ext/tk/lib/tk.rb: bugfix on TkWindow#configure
@@ -1306,7 +1306,7 @@ Thu Jul  3 14:22:46 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 Thu Jul  3 12:13:05 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
 
-	* lib/mkmf.rb (VPATH): convert from Windows form to Unix form on 
+	* lib/mkmf.rb (VPATH): convert from Windows form to Unix form on
 	  MinGW.  This fixes the build with GNU make 3.80-1 for Cygwin.
 
 Wed Jul  2 23:27:34 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
@@ -1454,16 +1454,16 @@ Fri Jun 27 03:24:54 2003  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
 Thu Jun 26 21:34:49 2003  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
 
 	* class.c (class_instance_method_list): get rid of warning about
-	  arguement type mismatch, and inline method_list().
+	  argument type mismatch, and inline method_list().
 	  [ruby-core:01198]
 
 Wed Jun 25 14:40:33 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
-	* ext/tk/lib/tk.rb: add and modify methods --- 
-	  TkWidget.database_class, TkWidget.database_classname, 
-          TkWidget#database_class, TkWidget#database_classname 
+	* ext/tk/lib/tk.rb: add and modify methods ---
+	  TkWidget.database_class, TkWidget.database_classname,
+          TkWidget#database_class, TkWidget#database_classname
 
-	* ext/tk/lib/tk.rb: instances of a subclass of TkToplevel or 
+	* ext/tk/lib/tk.rb: instances of a subclass of TkToplevel or
 	  TkFrame are created with ":class=>subclass" option as default.
 
 	* ext/tk/sample/tkoptdb.rb: add a new part
@@ -1478,7 +1478,7 @@ Wed Jun 25 05:49:10 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
 	* ext/tk/lib/tk.rb: add widget destroy hook binding to TkBindTag::ALL
 
-	* ext/tk/lib/tkcanvas.rb: Although requiring manual control of GC, 
+	* ext/tk/lib/tkcanvas.rb: Although requiring manual control of GC,
 	  memory eating problem of TkCanvas Items is fixed.
 
 	* ext/tk/lib/tktext.rb: add some methods and bug fix
@@ -1493,10 +1493,10 @@ Tue Jun 24 16:46:07 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 	* ext/tk/lib/tk.rb: bug fix on TkToplevel, TkFrame,
 	  TkPanedwindow, TkOptionDB
 
-	* ext/tk/lib/tk.rb: TkOptionDB --- make it more secure to use procs 
+	* ext/tk/lib/tk.rb: TkOptionDB --- make it more secure to use procs
 	  defined on resourceDB
 
-	* ext/tk/sample/tkoptdb.rb, resource.ja, resource.en: 
+	* ext/tk/sample/tkoptdb.rb, resource.ja, resource.en:
 	  sample script how to use TkOptionDB.
 
 Tue Jun 24 14:22:41 2003  why the lucky stiff  <ruby-cvs@whytheluckystiff.net>
@@ -1610,14 +1610,14 @@ Sun Jun 22 23:42:20 2003  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
 
 Sun Jun 22 16:17:02 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
-	* ext/tk/lib/tk.rb: TkRoot.new and TkToplevel.new accept Wm 
+	* ext/tk/lib/tk.rb: TkRoot.new and TkToplevel.new accept Wm
 	  commands as elements
 
 	* ext/tk/lib/tk.rb: TkMenu --- add some methods
 
 	* ext/tk/lib/tk.rb: TkOptionMenubutton --- bug fix
 
-	* ext/tk/sample/tkmenubutton.rb: sample of TkMenubutton and 
+	* ext/tk/sample/tkmenubutton.rb: sample of TkMenubutton and
 	  TkOptionMenubutton
 
 Sat Jun 21 23:15:08 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
@@ -1625,7 +1625,7 @@ Sat Jun 21 23:15:08 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
 	* eval.c (proc_invoke): should not propagate distination tag if
 	  tag is already handled in this level. (ruby-bugs-ja PR#501)
 
-	* object.c (str_to_id): check for empty string before intern. 
+	* object.c (str_to_id): check for empty string before intern.
 	  [ruby-talk:74006]
 
 Sat Jun 21 13:56:09 2003  Takaaki Uematsu  <uema2x@jcom.home.ne.jp>
@@ -1636,10 +1636,10 @@ Sat Jun 21 13:56:09 2003  Takaaki Uematsu  <uema2x@jcom.home.ne.jp>
 
 Sat Jun 21 12:55:17 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
-	* ext/tk/lib/tk.rb: TkRoot.new and TkToplevel.new accept Wm commands 
-	  as elements of a hash argument. 
+	* ext/tk/lib/tk.rb: TkRoot.new and TkToplevel.new accept Wm commands
+	  as elements of a hash argument.
 
-	* ext/tk/sample/tktimer2.rb: add comments about the usage of a 
+	* ext/tk/sample/tktimer2.rb: add comments about the usage of a
 	  TkTimer object.
 
 Sat Jun 21 08:47:22 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
@@ -1647,10 +1647,10 @@ Sat Jun 21 08:47:22 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 	* ext/tk/lib/tk*.rb: remove direct-accesses to TkComm::INTERP and
 	  TkComm::INITIALIZE_TARGETS
 
-	* ext/tk/lib/tk*.rb: use TkINTERP_SETUP_SCRIPTS constant for setting 
+	* ext/tk/lib/tk*.rb: use TkINTERP_SETUP_SCRIPTS constant for setting
 	  up the interpreter
 
-	* ext/tcltklib/tcltklib.c: support to create a safe interpreter 
+	* ext/tcltklib/tcltklib.c: support to create a safe interpreter
 	  with safe-Tk
 
 Fri Jun 20 23:28:27 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
@@ -1660,7 +1660,7 @@ Fri Jun 20 23:28:27 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 Fri Jun 20 15:04:28 2003  NAKAMURA Usaku <usa@ruby-lang.org>
 
-	* defines.h (PATH_ENV): name of PATH environment. [new]. 
+	* defines.h (PATH_ENV): name of PATH environment. [new].
 
 	* defines.h (ENV_IGNORECASE): define for case insensitive platforms
 	  to access environment variables.
@@ -1678,7 +1678,7 @@ Fri Jun 20 14:52:46 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
 Fri Jun 20 03:09:21 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
-	* parse.y (new_yield): distinguish "yield 1,2" and "yield [1,2]". 
+	* parse.y (new_yield): distinguish "yield 1,2" and "yield [1,2]".
 	  [ruby-dev:20360]
 
 	* eval.c (rb_eval): support new_yield() change.
@@ -1688,7 +1688,7 @@ Fri Jun 20 03:09:21 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
 	  [ruby-list:36935]
 
 	* parse.y (no_blockarg): separate no block argument check and
-	  ret_args argument processing. 
+	  ret_args argument processing.
 
 Fri Jun 20 00:45:19 2003  NAKAMURA, Hiroshi <nahi@ruby-lang.org>
 
@@ -1696,9 +1696,9 @@ Fri Jun 20 00:45:19 2003  NAKAMURA, Hiroshi <nahi@ruby-lang.org>
 
 Thu Jun 19 22:51:41 2003  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
 
-	* lib/drb.rb, lib/drb/drb.rb, lib/drb/eq.rb, 
-	  lib/drb/extserv.rb, lib/drb/extservm.rb, lib/drb/gw.rb, 
-	  lib/drb/invokemethod.rb, lib/drb/observer.rb, 
+	* lib/drb.rb, lib/drb/drb.rb, lib/drb/eq.rb,
+	  lib/drb/extserv.rb, lib/drb/extservm.rb, lib/drb/gw.rb,
+	  lib/drb/invokemethod.rb, lib/drb/observer.rb,
 	  lib/drb/timeridconv.rb, lib/drb/unix.rb: import drb-2.0.4b3
 
 Thu Jun 19 16:14:43 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
@@ -1710,17 +1710,17 @@ Thu Jun 19 16:14:43 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
 	* ext/tcltklib/tcltklib.c: add TclTkLib::EventFlag::NONE ( == 0 )
 
-	* ext/tcltklib/tcltklib.c: add set_no_event_wait() and 
+	* ext/tcltklib/tcltklib.c: add set_no_event_wait() and
 	  get_no_event_wait()
 
 	* ext/tcltklib/MANUAL.euc: modify
 
 	* ext/tcltklib/README.euc: ditto
 
-	* ext/tk/lib/tk.rb: change default value of TkCore.do_one_event 
+	* ext/tk/lib/tk.rb: change default value of TkCore.do_one_event
 	  argument
 
-	* ext/tk/lib/tk.rb: add TkCore.set_no_event_wait(wait) and 
+	* ext/tk/lib/tk.rb: add TkCore.set_no_event_wait(wait) and
 	  TkCore.get_no_event_wait
 
 	* ext/tk/lib/tk.rb: add Tk.exit ( == destroy root widget )
@@ -1730,7 +1730,7 @@ Thu Jun 19 16:14:43 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
 	* ext/tk/lib/tkafter.rb: set_callback returns self
 
-	* ext/tk/lib/tkafter.rb: continue() raises an exception, if already 
+	* ext/tk/lib/tkafter.rb: continue() raises an exception, if already
 	  running or no procedure.
 
 	* ext/tk/lib/tkafter.rb: skip() raises an exception, if not running.
@@ -1768,15 +1768,15 @@ Wed Jun 18 19:46:21 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
 	* ext/tk/lib/tk.rb: rename 'no_create' option to 'without_creating'
 
-	* ext/tk/lib/tk.rb: add TkWindow#pack_in, TkWindow#grid_in, 
+	* ext/tk/lib/tk.rb: add TkWindow#pack_in, TkWindow#grid_in,
 	  TkWindow#place_in
 
 	* ext/tk/lib/tk.rb: add TkWindow#bind_class and TkWindow#database_class
 
-	* ext/tk/lib/tk.rb: add TkBindTag.new_by_name and TkDatabaseClass 
+	* ext/tk/lib/tk.rb: add TkBindTag.new_by_name and TkDatabaseClass
 	  for binding to database class
 
-	* ext/tk/lib/tk.rb: check varname whether already exsist or not. 
+	* ext/tk/lib/tk.rb: check varname whether already exsist or not.
 	  (TkVarAccess.new)
 
 	* ext/tk/lib/tk.rb: TkTextWin#bbox returns an array of four numbers
@@ -1788,21 +1788,21 @@ Wed Jun 18 19:46:21 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
 	* ext/tk/lib/tk.rb: TkBindTag.new accepts a block
 
-	* ext/tk/lib/tk.rb: If given taglist, TkWindow#bindtags(taglist) 
+	* ext/tk/lib/tk.rb: If given taglist, TkWindow#bindtags(taglist)
 	  returns taglist
 
 	* ext/tk/lib/tk.rb: add TkWindow#bindtags=(taglist)
 
-	* ext/tk/lib/tk.rb: Tk.focue and Tk.focus_lastfor return nil 
+	* ext/tk/lib/tk.rb: Tk.focue and Tk.focus_lastfor return nil
 	  if there is no target widget.
 
-	* ext/tk/lib/tk.rb: Tk::Wm.client returns the argument string 
+	* ext/tk/lib/tk.rb: Tk::Wm.client returns the argument string
 	  when setting name
 
-	* ext/tk/lib/tk.rb: TkGrid.columnconfiginfo and rowconfiginfo 
+	* ext/tk/lib/tk.rb: TkGrid.columnconfiginfo and rowconfiginfo
 	  given a slot return a number.
 
-	* ext/tk/lib/tk.rb: TkWindow.grid_columnconfiginfo and 
+	* ext/tk/lib/tk.rb: TkWindow.grid_columnconfiginfo and
 	  grid_rowconfiginfo --- ditto
 
 	* ext/tk/lib/tk.rb: rename and define alias :: TkOption ==> TkOptionDB
@@ -1813,10 +1813,10 @@ Wed Jun 18 19:46:21 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
 	* ext/tk/lib/tk.rb: some TkComm methods change to module functions
 
-	* ext/tk/lib/tk.rb: add support for -displayof option to some 
+	* ext/tk/lib/tk.rb: add support for -displayof option to some
 	  TkWinfo methods
 
-	* ext/tk/lib/tk.rb: bind, bind_append and bind_remove --- 
+	* ext/tk/lib/tk.rb: bind, bind_append and bind_remove ---
 	  returns the target of event-binding
 
 	* ext/tk/lib/tk.rb: add Tk8.4 features
@@ -1837,7 +1837,7 @@ Wed Jun 18 19:46:21 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
 	* ext/tk/lib/tkentry.rb: TkEntry#bbox returns an array of four numbers
 
-	* ext/tk/lib/tkentry.rb: scan validatecommand arguments and 
+	* ext/tk/lib/tkentry.rb: scan validatecommand arguments and
 	  convert to proper type
 
 	* ext/tk/lib/tkbgerror.rb: support to define a error handler by user
@@ -1932,7 +1932,7 @@ Fri Jun 13 09:24:39 2003  Shugo Maeda  <shugo@ruby-lang.org>
 Thu Jun 12 22:13:13 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
 	* ext/tk/lib/tk.rb : add 'no_create' option to widget
-	  initialize method. 
+	  initialize method.
 
 	* ext/tk/MANIFEST : forgot to commit when added tkmacpkg.rb
 	  and tkwinpkg.rb
@@ -1947,7 +1947,7 @@ Thu Jun 12 21:14:11 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 	* ext/tk/lib/tkmacpkg.rb : Mac resource (not new but not
 	  included until now)
 
-	* ext/tk/lib/tkwinpkg.rb : Win DDE and registry (not new but not 
+	* ext/tk/lib/tkwinpkg.rb : Win DDE and registry (not new but not
 	  included until now)
 
 Tue Jun 10 14:26:30 2003  why the lucky stiff  <ruby-cvs@whytheluckystiff.net>
@@ -3361,7 +3361,7 @@ Fri Apr 11 02:41:35 2003  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
 
 Thu Apr 10 21:12:19 2003  Minero Aoki  <aamine@loveruby.net>
 
-	* lib/net/pop.rb: Exception line was accidentaly removed.
+	* lib/net/pop.rb: Exception line was accidentally removed.
 	  [ruby-dev:19989]
 
 Thu Apr 10 18:42:13 2003  Tadayoshi Funaba  <tadf@dotrb.org>
@@ -5986,7 +5986,7 @@ Thu Nov  7 09:51:37 2002  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
 Wed Nov  6 16:57:06 2002  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* class.c (rb_define_method): do not set NOEX_CFUNC if klass is
-	  really a module, whose methods must be safe for reciever's type.
+	  really a module, whose methods must be safe for receiver's type.
 
 	* eval.c (rb_eval): nosuper should not be inherited unless the
 	  overwritten method is an undef placeholder.
@@ -8346,7 +8346,7 @@ Tue Jun  4 07:03:33 2002  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
 	* ext/tk/lib/tkfont.rb:  Fix bugs on TkFont.init_widget_font for Tk8.x.
 
-	* ext/tk/lib/tkafter.rb: Add self to 1st argument of interval- 
+	* ext/tk/lib/tkafter.rb: Add self to 1st argument of interval-
 	  and loop-proc
 	  TkAfter#current_interval returns an interval (sleep) time value
 	  TkAfter#current_args returns an array of arguments
@@ -8354,7 +8354,7 @@ Tue Jun  4 07:03:33 2002  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 
 	* ext/tk/lib/tk*.rb: Allow to use Symbols for parameters.
 
-	* ext/tk/lib/tkcanvas.rb: (TkcItem) Add 'coords' parameter to the 
+	* ext/tk/lib/tkcanvas.rb: (TkcItem) Add 'coords' parameter to the
 	  canvas item constructor (for new notation of constructor).
 
 	* ext/tcltklib/tcltklib.c: New 'mainloop' and 'mainloop_watchdog'.
@@ -8363,7 +8363,7 @@ Tue Jun  4 07:03:33 2002  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
 	  'use' parameter.
 
 	* ext/tk/lib/tk.rb: Add new parameter 'widgetname' to the widget
-	  constructor to support effective use of Resource Database. 
+	  constructor to support effective use of Resource Database.
 
 	* ext/tk/lib/tk.rb: TkOption::get always returns a tainted string.
 
@@ -13763,7 +13763,7 @@ Tue Apr 17 17:33:55 2001  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* eval.c (handle_rescue): use === to compare exception match.
 
-	* error.c (syserr_eqq): comparison between SytemCallErrors should
+	* error.c (syserr_eqq): comparison between SystemCallErrors should
 	  based on their error numbers.
 
 Tue Apr 17 16:54:39 2001  K.Kosako  <kosako@sofnec.co.jp>
diff --git a/doc/ChangeLog-1.9.3 b/doc/ChangeLog-1.9.3
index 692b996335..b3deb551b0 100644
--- a/doc/ChangeLog-1.9.3
+++ b/doc/ChangeLog-1.9.3
@@ -3541,7 +3541,7 @@ Sun May 15 23:45:11 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 Sun May 15 22:26:39 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
 
 	* signal.c (rb_f_kill): accept '-SIGXXX' style signal with Symbol or
-	  implicit convertion with #to_str. [ruby-dev:43169] fixes #4362
+	  implicit conversion with #to_str. [ruby-dev:43169] fixes #4362
 	* test/ruby/test_signal.rb (test_signal_process_group): add a test
 	  for send signal to process group.
 
@@ -8041,7 +8041,7 @@ Sat Dec 25 17:33:55 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 	  anonymous classes.
 
 	* lib/csv.rb (CSV#init_separators): use IO#gets with length
-	  parameter to get rid of wrong convertion.
+	  parameter to get rid of wrong conversion.
 
 	* lib/csv.rb (CSV::foreach, CSV#initialize): directly use encoding
 
@@ -8382,7 +8382,7 @@ Tue Dec 14 14:24:15 2010  NAKAMURA Usaku  <usa@ruby-lang.org>
 	  to 'test_io' because the old one is meaningless and inconvenient.
 
 	* test/ruby/test_io.rb (test_binmode_after_closed): the temporary file
-	  maked by make_temfile is already closed.
+	  made by make_temfile is already closed.
 
 Tue Dec 14 13:52:19 2010  NAKAMURA Usaku  <usa@ruby-lang.org>
 
@@ -14297,7 +14297,7 @@ Thu Jun 10 09:10:08 2010  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 Wed Jun  9 22:51:50 2010  Tanaka Akira  <akr@fsij.org>
 
-	* time.c (find_time_t): always outerpolate from past.
+	* time.c (find_time_t): always extrapolate from past.
 	  [ruby-core:30672] reported by Benoit Daloze.
 
 Wed Jun  9 22:13:08 2010  Tanaka Akira  <akr@fsij.org>
@@ -22363,7 +22363,7 @@ Tue Sep 29 22:19:36 2009  Tanaka Akira  <akr@fsij.org>
 
 Tue Sep 29 21:16:35 2009  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* io.c (rb_scan_open_args): add UTF8-MAC to no-convertion encoding.
+	* io.c (rb_scan_open_args): add UTF8-MAC to no-conversion encoding.
 
 Tue Sep 29 21:21:15 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
@@ -33712,7 +33712,7 @@ Thu Dec 25 14:51:43 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
 Thu Dec 25 14:32:23 2008  Koichi Sasada  <ko1@atdot.net>
 
 	* vm_insnhelper.c (vm_method_search): fix control flow bug.
-	  (commited at r20981)
+	  (committed at r20981)
 
 Thu Dec 25 13:28:20 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
 
@@ -71774,7 +71774,7 @@ Wed Mar  1 17:13:37 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 Thu Mar  2 17:54:45 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
 
-	* gc.c: commited magic for reducing RVALUE size on windows. (24->20byte)
+	* gc.c: committed magic for reducing RVALUE size on windows. (24->20byte)
 	  [ruby-core:7474]
 
 Thu Mar  2 14:12:26 2006  Tanaka Akira  <akr@m17n.org>
@@ -73761,7 +73761,7 @@ Fri Oct 21 15:42:28 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
 
 	* ext/socket/extconf.rb: BeOS is only one platform should call
 	  closesocket, so check __BEOS__ macro directly. (I was worried
-	  accidently HAVE_CLOSESOCKET is defined on windows again because
+	  accidentally HAVE_CLOSESOCKET is defined on windows again because
 	  it has it)
 
 	* ext/socket/{getaddrinfo.c,socket.c}: ditto.
@@ -73770,7 +73770,7 @@ Fri Oct 21 15:42:28 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
 
 Fri Oct 21 15:23:23 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
 
-	* bignum.c (bignew_1): convertion from `int' to `char' discards
+	* bignum.c (bignew_1): conversion from `int' to `char' discards
 	  upper bits, (ie. (char)0xff00 -> 0) so it's better to test if
 	  nonzero and set 0 or 1 instead of simply casting ... as a flag usage.
 	  (but I believe this won't cause actual bug in current implementation)
@@ -74937,7 +74937,7 @@ Mon Sep 12 20:32:00 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
 
 Mon Sep 12 19:58:53 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
 
-	* dln.c: avoid warning of const to non-const convertion.
+	* dln.c: avoid warning of const to non-const conversion.
 	  [ruby-dev:27041]
 
 	* eval.c, io.c, ruby.c: ditto.
@@ -76917,7 +76917,7 @@ Tue May 31 15:52:45 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
 	  break the loop if the socket reached to EOF. [ruby-talk:142285]
 
 	* lib/webrick/httpserver.rb (WEBrick::HTTPServer#run): send response
-	  without reading the whole request body if keep-alive is diabled.
+	  without reading the whole request body if keep-alive is disabled.
 	  [experimental]
 
 Mon May 30 23:48:29 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
@@ -76939,7 +76939,7 @@ Sat May 28 16:39:21 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
 Sat May 28 05:15:44 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
 
 	* ext/openssl/ossl_x509store.c (ossl_x509stctx_set_time): should
-	  not set internal flag directry.
+	  not set internal flag directory.
 
 Sat May 28 02:00:11 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
 
@@ -83155,7 +83155,7 @@ Thu Aug 19 16:29:45 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
 
 	* ext/tk/lib/tk.rb: Fail to treat a hash value of 'font' option.
 
-	* ext/tk/lib/tk.rb: bindinfo cannot return '%' substiturion infomation.
+	* ext/tk/lib/tk.rb: bindinfo cannot return '%' substiturion information.
 
 	* ext/tk/lib/menu.rb: typo bug.
 
@@ -83584,7 +83584,7 @@ Wed Jul 14 18:05:21 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
 Wed Jul 14 12:20:05 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
 
 	* util.c (ruby_strtod): should not convert string in the form of
-	  "-I.FE-X" which both "I" and "F" are ommitted. [ruby-dev:23883]
+	  "-I.FE-X" which both "I" and "F" are omitted. [ruby-dev:23883]
 
 	* test/ruby/test_float.rb (test_strtod): add test for bug fix.
 
@@ -84298,7 +84298,7 @@ Sat May 22 11:54:10 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 Sat May 22 05:37:11 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
 
-	* ext/tk/lib/remote-tk.rb: (NEW library) controll Tk interpreters
+	* ext/tk/lib/remote-tk.rb: (NEW library) control Tk interpreters
 	  on the other processes by Tcl/Tk's 'send' command
 
 Fri May 21 09:22:05 2004  Dave Thomas  <dave@pragprog.com>
@@ -85607,10 +85607,10 @@ Wed Mar 17 00:22:03 2004  Kazuo Saito  <ksaito@uranus.dti.ne.jp>
 Tue Mar 16 11:14:17 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
 
 	* dir.c (fnmatch_helper): File.fnmatch('\.', '.') should return true.
-	  (Rev1.112 lost compatiblity)
+	  (Rev1.112 lost compatibility)
 
 	* dir.c (fnmatch_helper): File.fnmatch('\/', '/', File::FNM_PATHNAME)
-	  should return true. (Rev1.112 lost compatiblity)
+	  should return true. (Rev1.112 lost compatibility)
 
 	* dir.c (fnmatch): File.fnmatch('**/.boo', '.foo/.boo',
 	  File::FNM_PATHNAME) should return false because of leading period.
@@ -86434,7 +86434,7 @@ Mon Feb 16 22:22:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
 
 Mon Feb 16 20:28:52 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
 
-	* bcc32/Makefile.sub: show more warnings. (refering to mingw)
+	* bcc32/Makefile.sub: show more warnings. (referring to mingw)
 
 	* bcc32/setup.mak: ditto.
 
@@ -86492,7 +86492,7 @@ Mon Feb 16 12:29:10 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 Mon Feb 16 10:29:52 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
 
 	* dir.c (CompareImpl): File.fnmatch and Dir.glob get better performance
-	  in Win32. This is achived by calling downcase() for single-byte
+	  in Win32. This is achieved by calling downcase() for single-byte
 	  characters. (CharLower() is slower than downcase())
 
 Mon Feb 16 02:14:29 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
@@ -86561,7 +86561,7 @@ Sat Feb 14 11:14:12 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
 
 Fri Feb 13 21:51:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
 
-	* lib/fileutils.rb: slighly improved documentation (sync with 1.8)
+	* lib/fileutils.rb: slightly improved documentation (sync with 1.8)
 
 Fri Feb 13 19:57:01 2004  Kouhei Sutou  <kou@cozmixng.org>
 
@@ -86877,7 +86877,7 @@ Sun Feb  1 18:21:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
 Sun Feb  1 05:30:06 2004  Tanaka Akira  <akr@m17n.org>
 
 	* lib/open-uri.rb (URI::Generic#find_proxy): warn HTTP_PROXY.
-	 raise an errror on non-http proxy URI.
+	 raise an error on non-http proxy URI.
 	 (OpenURI::Buffer#<<): make a tempfile binmode.  [ruby-talk:90793]
 
 Sun Feb  1 00:57:41 2004  Kouhei Sutou  <kou@cozmixng.org>
@@ -89179,7 +89179,7 @@ Thu Nov 27 22:05:48 2003  Akinori MUSHA  <knu@iDaemons.org>
 Thu Nov 27 17:36:42 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
 
 	* ext/tk/lib/tkafter.rb: bug fix on TkTimer#cancel_on_exception=(mode).
-	  TkTimer#wait recieves the exception of the callback.
+	  TkTimer#wait receives the exception of the callback.
 	  The exception is kept on @return_value.
 
 Thu Nov 27 16:58:48 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
diff --git a/doc/ChangeLog-2.0.0 b/doc/ChangeLog-2.0.0
new file mode 100644
index 0000000000..a1a79b8dca
--- /dev/null
+++ b/doc/ChangeLog-2.0.0
@@ -0,0 +1,24015 @@
+Fri Feb  8 19:56:54 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* array.c (rb_ary_dup): reverted r39004.  see [Bug #7768], and
+	  release manager finally decided to revert it.
+
+Fri Feb  8 16:09:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval.c (rb_ensure): preserve errinfo across ensure proc before
+	  JUMP_TAG().  [ruby-core:52022] [Bug #7802]
+
+Fri Feb  8 16:08:28 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/envutil.rb (assert_separately): check also terminating
+	  signal not only if core dumped.
+
+Fri Feb  8 13:12:04 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/generator/darkfish.rb:  Set encoding on output template to
+	  user-specified encoding.
+	* test/rdoc/test_rdoc_generator_darkfish.rb:  Test for above.
+
+	* lib/rdoc.rb:  Bump version
+
+Fri Feb  8 11:53:33 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/security/policy.rb:  Raise proper exceptions when
+	  verifying unsigned gems (instead of crashing).
+	* test/rubygems/test_gem_security_policy.rb:  Tests for the above.
+
+Fri Feb  8 10:44:44 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* test/rubygems/test_gem_dependency_installer.rb:  Improve coverage of
+	  --install-dir feature of gem install.
+
+Fri Feb  8 10:11:09 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/config_file.rb:  Add missing require for
+	  user_interaction.rb
+
+	* lib/rubygems/dependency_installer.rb:  Minor refactor for clarity.
+
+Fri Feb  8 09:35:17 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#configuration): set all ruby names.
+	  hdrdir now needs RUBY_VERSION_NAME.
+
+Fri Feb  8 08:58:26 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/package/old.rb:  Fix loading old format gems on ruby
+	  1.8.  This commit is only so trunk and rubygems master have the same
+	  code.
+
+Fri Feb  8 08:53:27 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: fixing string quotation
+	  when dumping Ruby strings. Thanks Ingy
+
+	* test/psych/test_psych.rb: appropriate tests.
+
+	* test/psych/test_yaml.rb: ditto
+
+Fri Feb  8 08:50:42 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: change output reference
+	  ids to be sequential numbers.
+
+Fri Feb  8 07:47:56 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/package/old.rb:  Disallow installation of old-format
+	  gems when a security policy is active.
+	* test/rubygems/test_gem_package_old.rb:  Test for above.
+
+Fri Feb  8 07:34:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/net/http.rb (HTTP.post_form): Fix module scope in documentation
+	  Patch by David Albert [Bug #7794] [ruby-core:51955]
+
+Fri Feb  8 07:33:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* compar.c (cmp_equal): Document ignored exception and return false
+	  By Makoto Kishimoto [Bug #7790] [ruby-dev:46925] [ruby-dev:46910]
+
+Fri Feb  8 07:17:00 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/dependency_installer.rb:  Only install local gems if
+	  they end in '.gem'.  Fixes github rubygems issue #407.
+	* test/rubygems/test_gem_dependency_installer.rb:  Test for the above.
+
+Fri Feb  8 00:02:48 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (obj2gid): use getgrnam_r() only if getgrnam_r() and
+	  _SC_GETGR_R_SIZE_MAX is available.
+	  MirOS BSD (MirBSD 10 GENERIC#1382 i386) have getgrnam_r() but
+	  no _SC_GETGR_R_SIZE_MAX.
+	  (obj2uid): use getpwnam_r() only if getpwnam_r() and
+	  _SC_GETPW_R_SIZE_MAX is available.
+	  This is consistency for obj2gid.
+	  MirOS BSD have neither getpwnam_r() nor _SC_GETPW_R_SIZE_MAX.
+
+Thu Feb  7 22:01:18 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: define linker for shared library on MirOS BSD.
+
+Thu Feb  7 21:09:23 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/rubygems/test_gem_config_file.rb
+	  (TestGemConfigFile#test_check_credentials_permissions): skip on
+	  Windows. see [Bug #7784] [ruby-core:51864] and r39070.
+
+Thu Feb  7 20:52:40 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/Makefile.sub (config.status): added variables which were
+	  missing at r39130.
+
+Thu Feb  7 15:33:17 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#merge_libs): insert following reversal
+	  ordered elements just after the duplicated element, not overwriting
+	  successive elements.  [ruby-core:50314] [Bug #7467]
+
+Thu Feb  7 14:56:15 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/package.rb:  Ensure digests are generated for signing.
+	* test/rubygems/test_gem_package.rb:  Test for the above.
+
+	* lib/rubygems/security/policy.rb:  Ensure digests are present when
+	  verifying a gem and match the number of signatures bidirectionally.
+	* test/rubygems/test_gem_security_policy.rb:  Test for the above.
+
+	* lib/rubygems.rb:  Documentation improvements (by zzak)
+
+Thu Feb  7 05:52:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* doc/pty/README: Remove static documentation file
+	* ext/pty/pty.c: Add License to PTY module overview
+
+Thu Feb  7 02:31:10 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* vm_insnhelper.c: attr_writer should return its argument [Bug #7773]
+
+	* test/ruby/test_basicinstructions.rb: Test for above
+
+Thu Feb  7 01:35:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* doc/security.rdoc: Link to japanese version of CVE page patch by
+	  nagachika
+
+Wed Feb  6 23:30:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* doc/pty/README.expect: Removed static documentation file
+	* ext/pty/lib/expect.rb: Documentation for IO#expect
+
+Wed Feb  6 22:25:00 2013  Charlie Somerville  <charlie@charliesomerville.com>
+
+	* hash.c (env_reject_bang): hide keys array from ObjectSpace
+	* hash.c (env_select_bang): ditto
+
+Wed Feb  6 17:33:01 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (multiarch): add option to move architecture dependent
+	  directories.  [Feature #6111]
+
+	* template/ruby.pc.in: add arch dependent paths.
+
+	* configure.in (rubyarchhdrdir, sitearchhdrdir, vendorarchhdrdir): add
+	  options to customize architecture dependent header directories.
+
+	* configure.in (rubyarchprefix, sitearchdir, vendorarchdir): add
+	  options to customize architecture dependent library directories.
+
+	* template/ruby.pc.in, tool/mkconfig.rb, tool/rbinstall.rb: use
+	  configured values.
+
+	* tool/mkconfig.rb: expand rubyarchdir to extract prefix.
+
+	* configure.in (RUBY_VERSION_NAME), template/ruby.pc.in: add
+	  substitution and define.
+
+	* configure.in, version.c: parametric architecture name for paths.
+
+	* configure.in (shvar_to_cpp): convert sh variable references
+	  by replacing with string literal forms in cpp.
+
+Wed Feb  6 17:05:26 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc:  Import RDoc 4.0.0.rc.2
+
+Mon Feb  4 02:22:49 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/ruby/test_process.rb (test_setsid): ensure to call
+	  Process.wait(). Reported by George Koehler. Thanks.
+
+Mon Feb  4 02:18:00 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/ruby/test_process.rb (test_setsid): skip when platform is
+	  OpenBSD. Contributed from George Koehler.
+	  [Bug #7789] [ruby-core:51889]
+
+Wed Feb  6 13:35:20 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (rb_method_entry_location, rb_{mod,obj}_method_location): new
+	  functions to obtain source location of method definition.
+
+	* vm_method.c (rb_obj_respond_to): show the location of old style
+	  respond_to? method.
+
+Wed Feb  6 13:03:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* doc/security.rdoc: Add link to CVEs on ruby-lang.org/en/security
+
+Wed Feb  6 12:49:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* NEWS: Add note about removal of CSV::load and CSV::dump from r39077
+
+Wed Feb  6 05:57:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/racc/parser.rb: Hide copyright notice from Racc doc
+
+Wed Feb  6 05:50:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* doc/rubygems/*: Removed outdated documentation files
+	* lib/rubygems/LICENSE.txt: Include license file
+	* lib/rubygems.rb: Move Gem module documentation so rdoc can parse it
+	  and link to LICENSE.txt
+	* lib/rubygems/*: Hide useless documentation from Gem module rdoc
+
+Wed Feb  6 03:45:19 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* doc/security.rdoc: Remove documentation for unsafe CSV.load which
+	  was deleted in r39077
+
+Wed Feb  6 03:27:19 2013  James Edward Gray II  <james@graysoftinc.com>
+
+	* lib/csv.rb: Remove the dangerous serialization feature.
+
+Wed Feb  6 00:56:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/irb.rb: Remove example from restrictions, it works [Github #246]
+	  Based on patch by Ryunosuke SATO
+
+Wed Feb  6 00:46:53 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm.c (rb_vm_stack_to_heap): call rb_vm_get_binding_creatable_next_cfp
+	  instead of rb_vm_get_ruby_level_next_cfp to prevent a segfault by
+	  calling Kernel#callcc. See r39067 for more details.
+	  [ruby-dev:46908] [ruby-trunk - Bug #7774]
+
+	* test/ruby/test_settracefunc.rb: add a test.
+
+Tue Feb  5 18:48:00 2013  Charlie Somerville  <charlie@charliesomerville.com>
+
+	* doc/security.rdoc: add regex, eval and drb sections
+
+Tue Feb  5 17:24:02 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/servlet.rb:  Fixed root search paths, filesystem paths
+	  instead of HTTP paths were returned.
+	* test/rdoc/test_rdoc_servlet.rb:  Test for above.
+
+Tue Feb  5 16:37:00 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/config_file.rb:  Ignore permissions check on windows.
+	  Windows writes 0600 file as 0644 permissions making the check
+	  useless.
+
+Tue Feb  5 16:25:25 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_method.c (rb_obj_respond_to): drop optional include_all flag if
+	  respond_to? method is defined in old style.  [Bug #7722]
+
+Tue Feb 05 15:04:34 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* proc.c (rb_binding_new_with_cfp): permit to create binding object
+	  of IFUNC frame.
+	  When `rb_binding_new_with_cfp()' is called, VM finds out the first
+	  normal (has iseq) frame and create a binding object of this frame
+	  and create Env objects. `ep's of related frames are updated
+	  (`ep's point Env object managed spaces).
+	  However, `ep' of skipped IFUNC frame was not updated and
+	  old invalid `ep' was remained. It causes serious problems.
+	  To solve this issue, permit IFUNC to create binding.
+	  (Maybe there is no problem on it)
+	  [ruby-dev:46908] [ruby-trunk - Bug #7774]
+
+	* test/ruby/test_settracefunc.rb: add a test.
+
+	* vm.c (rb_vm_get_binding_creatable_next_cfp), vm_core.h: added.
+
+	* vm_trace.c: fix to use `rb_vm_get_binding_creatable_next_cfp()'.
+
+Tue Feb  5 14:43:15 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb: Fix error message, patch by pypypy [Bug #7777]
+
+Tue Feb  5 14:36:04 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* numeric.c (fix_pow): Handle special cases when base is 0, -1 or +1
+	  [Bug #5713] [Bug #5715]
+
+	* rational.c (nurat_expt): ditto
+
+Tue Feb  5 13:27:53 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/io/console/console.c (rawmode_opt): use default values by `stty
+	  raw`.
+
+Tue Feb  5 12:50:47 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* range.c: Use div instead of / for bsearch
+
+	* test/ruby/test_range.rb: Test showing bug when requiring mathn
+
+Tue Feb  5 12:48:38 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* enumerator.c: Use to_enum for Enumerable methods returning
+	  Enumerators.
+	  This makes Lazy#cycle no longer needed, so it was removed.
+	  Make Enumerator#chunk and slice_before return lazy Enumerators.
+	  [Bug #7715]
+
+	* internal.h: Remove ref to rb_enum_cycle_size; no longer needed
+
+	* enum.c: Make enum_cycle_size static.
+
+	* test/ruby/test_lazy_enumerator.rb: Test for above
+
+Tue Feb  5 12:48:10 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* enumerator.c: Finalize and document Lazy.new. [Bug #7248]
+	  Add Lazy#to_enum and simplify Lazy#size.
+
+	* test/ruby/test_lazy_enumerator.rb: tests for above
+
+Tue Feb  5 11:35:35 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/commands/push_command.rb:  Fixed credential download for
+	  `gem push --host`
+	* lib/rubygems/gemcutter_utilities.rb:  ditto.
+	* test/rubygems/test_gem_commands_push_command.rb:  Test for the above.
+	* test/rubygems/test_gem_gemcutter_utilities.rb:  ditto.
+
+	* lib/rubygems/config_file.rb:  Abort if the `gem push` credentials
+	  file has insecure permissions.
+	* test/rubygems/test_gem_config_file.rb:  Test for the above.
+
+	* lib/rubygems/ext/builder.rb:  Do not look for Gemfile, Isolate, etc.
+	  while building gem extensions.
+
+	* lib/rubygems/package.rb:  Unset spec and files list if a gem's
+	  signatures cannot be verified.
+	* test/rubygems/test_gem_package.rb:  Test for the above.
+
+	* lib/rubygems/specification.rb:  Reduce use of eval.
+	* lib/rubygems/test_case.rb:  ditto.
+
+	* test/rubygems/test_gem_specification.rb:  Test setting
+	  specification_version for legacy gems.  Dup Gem.ruby before
+	  untainting in case it's frozen.
+
+	* lib/rubygems.rb:  Reduce use of eval.  Only read files when looking
+	  for Gemfile, Isolate, etc.
+	* test/rubygems/test_gem.rb:  Test for the above.
+
+Tue Feb  5 10:15:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* doc/security.rdoc: Wrap security guide at 80 columns
+
+Tue Feb  5 10:15:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* doc/security.rdoc: Grammatical error on security guide
+	  Patch by Josh Bassett [Github fixes #245]
+
+Tue Feb  5 10:00:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/racc/parser.rb: Update #do_parse and #yyparse from upstream
+	  See [Github tenderlove/racc@7d954b5]
+
+Tue Feb  5 09:55:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/racc: Merge Racc documentation downstream, add grammar ref file
+
+Tue Feb  5 08:03:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/irb.rb, lib/irb/ext/save-history.rb: Add documentation on how to
+	  enabled irb history [ruby-core:51347] [Bug #7679]
+
+Tue Feb  5 07:35:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/irb.rb, lib/irb/context.rb: Add documentation on how to enable
+	  auto-indentation and autocompletion using irbrc and irb_context
+	  [ruby-core:51209] [Bug #7642] and [ruby-core:51348] [Bug #7680]
+
+Tue Feb  5 05:20:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* doc/standard_library.rdoc: Document list of libraries and extensions
+	  and their purpose or short description
+	* lib/README: Remove lib/README in favor of doc/standard_library.rdoc
+
+Tue Feb  5 04:40:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/json/lib/json.rb: Move module overview definition for rdoc
+
+Tue Feb  5 03:00:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/tracer.rb: Move class overview definition and reformat
+
+Mon Feb  4 15:10:10 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/io/console/console.c (rawmode_opt): initialize options for the
+	  case all options are not given.
+
+Mon Feb  4 12:44:13 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_dump.c (control_frame_dump): capitalize prefix of `ep'
+	  if `ep' points an env object.
+
+Mon Feb  4 04:20:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/English.rb: Add English module for RDoc to parse, then
+	  remove_const to avoid confusion. Include full list of aliases and
+	  their associated global variable.
+
+Mon Feb  4 02:40:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/yaml.rb (YAML::EngineManager): Documentation for #yamler and
+	  #yamler= for using the removed Syck gem as the YAML::ENGINE
+
+Sun Feb  3 16:54:27 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/io/console/io-console.gemspec: bump.  [Bug #7762]
+
+	* test/io/console/test_io_console.rb (test_stringio_getch): use more
+	  descriptive assertions.
+
+	* ext/io/console/console.c (rawmode_opt): min is minimum characters,
+	  not tenths.
+
+Sun Feb  3 16:13:00 2013  Charlie Somerville  <charlie@charliesomerville.com>
+
+	* doc/security.rdoc: add first cut at a Ruby security document
+
+Sun Feb  3 10:25:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* random.c: Document range argument for Kernel#rand.
+	  [ruby-core:51794] [Bug #7770]
+
+Sun Feb  3 10:00:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* numeric.c: Document Float constants [ruby-core:51484] [Bug #7709]
+
+Sun Feb  3 09:38:44 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/profiler.rb (PROFILE_CALL_PROC, PROFILE_RETURN_PROC): add b_call
+	  and b_return to profile block calls.
+
+	* lib/profiler.rb (PROFILE_CALL_PROC, PROFILE_RETURN_PROC): split
+	  PROFILE_PROC for call and return events.
+
+Sat Feb  2 14:32:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/minitest/mock.rb, lib/minitest/hell.rb: nodoc top-level module
+
+Sat Feb  2 14:05:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/debug.rb: Documentation for DEBUGGER__ class methods based on
+	  patch by Vincent Batts [ruby-core:51253]
+
+Sat Feb  2 13:37:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/net/smtp.rb: Fix rdoc title for Net::SMTP
+
+Sat Feb  2 13:32:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/net/pop.rb: Fix rdoc title for Net::POP3
+
+Sat Feb  2 13:00:11 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* lib/gserver.rb (GServer#start): fix a timing issue.  patch from
+	  Charles Nutter.  [Bug #7081]
+
+Sat Feb  2 12:36:54 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* lib/fileutils.rb (copy_entry, wrap_traverse): preserve attributes of
+	  directories on FileUtils.cp_r.  The fix was proposed by Jan
+	  Wedekind.  [Bug #7246]
+
+	* test/fileutils/test_fileutils.rb: add a test for above.
+
+Sat Feb  2 12:30:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/uri/ftp.rb (URI::FTP.new2): nodoc method from r39013 [Bug #7301]
+
+Sat Feb  2 12:15:36 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* lib/uri/ftp.rb (URI::FTP.new2): remove the rdoc because it is not
+	  well tested yet.  [Bug #7301]
+
+Sat Feb  2 12:07:41 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* ChangeLog: Forgot to add a reference to the ChangeLog of the
+	  previous commit.
+
+Sat Feb  2 12:05:18 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* lib/fileutils.rb: chmod/chmod_R with a string mode (e.g., "+x")
+	  caused error in verbose mode.  [Bug #7373]
+
+	* test/fileutils/test_fileutils.rb: add a test for above.
+
+Sat Feb  2 11:44:42 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* lib/English.rb: Remove some confusing words from rdoc.  [Bug #7406]
+
+Sat Feb  2 10:17:12 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* NEWS: add keyword arguments.
+
+Sat Feb  2 07:45:44 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* proc.c (proc_curry): Fix arity check [Bug #5747]
+
+	* test/ruby/test_proc.rb: Test for above
+
+Sat Feb  2 07:44:15 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* proc.c: Add {*}_min_max_arity and refactor.
+	  [Bug #7765]
+
+	* test/ruby/test_proc.rb: Fix wrong test
+
+Fri Feb  2 00:46:00 2013  Charlie Somerville  <charlie@charliesomerville.com>
+
+	* marshal.c: add security considerations to marshal overview, refer to
+	  overview from Marshal.load documentation [#7759]
+
+Fri Feb  1 23:04:00 2013  Charlie Somerville  <charlie@charliesomerville.com>
+
+	* array.c (rb_ary_dup): make returned array the same class as the original
+	  array [Bug #7768] [ruby-core:51792]
+	* test/ruby/test_array.rb (class TestArray): add test
+
+Fri Feb  1 16:35:34 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* marshal.c (r_object0): prohibit setting instance variables of
+	  existing class/module.
+
+Fri Feb  1 14:34:29 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* ext/readline/extconf.rb, ext/readline/readline.c: check
+	  RL_PROMPT_START_IGNORE and RL_PROMPT_END_IGNORE directly in
+	  readline.c.  Patch by Zachary Scott.  [Bug #7397] [ruby-core:49561]
+
+Thu Jan 31 21:55:00 2013  Charlie Somerville  <charlie@charliesomerville.com>
+
+	* marshal.c (marshal_load): Add documentation warning against using
+	  Marshal.load on untrusted data [Bug #7759] [ruby-core:51765]
+
+Thu Jan 31 16:33:27 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (local_push_gen): no assigned but unused variable warnings
+	  in eval as well as -e.  [Feature #7730] [ruby-core:51580]
+
+Wed Jan 30 12:30:08 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/ruby/test_signal.rb (test_trap_puts): Fix typo. "sync"
+	  should be "STDOUT.sync".
+
+Thu Jan 31 15:39:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* string.c (rb_str_aset_m): Documentation for String#[]= fix
+	  Raises an IndexError if Regexp match is out of range.
+	  Github fixes #243 Patch by Dmtiriy Budnik
+
+Thu Jan 31 13:54:44 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* ext/socket/raddrinfo.c (rsock_unix_sockaddr_len): return
+	  sizeof(sa_family_t) if path is empty.  see "Autobind Feature" in
+	  unix(7) for details.
+
+	* ext/socket/lib/socket.rb (unix_socket_abstract_name?): treat an
+	  empty path as an abstract name.
+
+	* test/socket/test_unix.rb: related test.
+
+Wed Jan 30 20:58:50 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/basicsocket.c (bsock_getsockname): ignore truncated
+	  part of socket address.
+	  (bsock_getpeername): ditto.
+	  (bsock_local_address): ditto.
+	  (bsock_remote_address): ditto.
+
+	* ext/socket/unixsocket.c (unix_path): ditto.
+	  (unix_addr): ditto.
+	  (unix_peeraddr): ditto.
+
+	* ext/socket/init.c (cloexec_accept): ditto.
+
+Wed Jan 30 17:08:20 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/win32.h (fstat): revert r37337, which uses _fstati64()
+	  instead of fstati64() on mingw32.  [Bug #7276]
+
+Wed Jan 30 15:26:37 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* ext/socket/unixsocket.c (rsock_init_unixsock): use rb_inspect()
+	  because rb_sys_fail_str() fails if its argument contains NUL.
+
+	* test/socket/test_unix.rb: related test.
+
+Wed Jan 30 15:21:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_dump.c (rb_vm_bugreport): show the most important message, Crash
+	  Report log information, first.
+
+Wed Jan 30 15:00:05 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* array.c (rb_ary_bsearch): Raise TypeError on bad return from block
+
+	* range.c (range_bsearch): ditto
+
+	* test/ruby/test_array.rb (class): Test for above
+
+	* test/ruby/test_range.rb (class): ditto
+
+Wed Jan 30 14:46:28 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* range.c: Restrict bsearch to integers [#7728]
+
+	* test/ruby/test_range.rb: Test for above
+
+Wed Jan 30 14:10:52 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* array.c (rb_ary_bsearch): Return enumerator if no block [#7725]
+
+	* range.c (range_bsearch): ditto
+
+	* test/ruby/test_array.rb: Test for above
+
+	* test/ruby/test_range.rb: ditto
+
+Wed Jan 30 13:53:43 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb: Take conjugate for inner product
+	  [rubyspec:5a01ad5719f2] [ruby-dev:46101]
+
+Wed Jan 30 13:22:05 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (local_push_gen): warn assigned but unused variables also in
+	  toplevel, except for -e option.  [Feature #7730] [ruby-core:51580]
+
+Wed Jan 30 13:17:53 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* cont.c (cont_restore_thread): svar should be separate per fibers.
+	  [ruby-core:51331] [Bug #7678]
+
+Wed Jan 30 07:15:04 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* re.c (reg_operand): Simplify and reuse error handling [Bug #7539]
+
+	* test/ruby/test_regexp.rb: Test for above
+
+Wed Jan 30 07:00:16 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* object.c: Improve error for failed implicit conversions [Bug #7539]
+
+	* error.c: Adapt rdoc
+
+	* test/ruby/test_object.rb: Test for above
+
+Tue Jan 29 21:40:12 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/net/http/generic_request.rb (encode_multipart_form_data): remove
+	  tempfile explicitly.
+
+Tue Jan 29 19:27:18 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* array.c: Improve documentation about
+	  comparison by hash for concerned methods. [ruby-core:51266]
+
+Tue Jan 29 17:03:28 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_backtrace.c: fix issue of rb_debug_inspector_open().
+	  The order of making binding should be stack (frame) top to bottom.
+	  [Bug #7635]
+	  And also fix issue of collecting klass. Collecting klass is same
+	  as TracePoint#defined_class.
+	  (previous version, it returns T_ICLASS (internal objects).
+
+	* test/-ext-/debug/test_debug.rb: add a test.
+
+	* ext/-test-/debug/extconf.rb, init.c, inspector.c: ditto.
+
+	* vm_backtrace.c: remove magic number and add enum CALLER_BINDING_*.
+
+	* vm_backtrace.c, include/ruby/debug.h: add new C api (experimental)
+	  rb_debug_inspector_frame_self_get().
+
+	* vm.c, vm_core.h, vm_trace.c: move decl. of
+	  rb_vm_control_frame_id_and_class() and constify first parameter.
+
+Tue Jan 29 16:50:58 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_trace.c (rb_tracepoint_enable, rb_tracepoint_disable): check safe
+	  level as well as set_trace_func.
+
+	* vm_trace.c (set_trace_func, thread_{add,set}_trace_func_m): check
+	  safe level as well as 1.8.
+
+Tue Jan 29 16:49:19 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (rb_mod_method_arity): return original arity of the method if
+	  aliased because of visibility change, like as Method#arity.
+
+Tue Jan 29 12:05:18 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_marshal.rb: remove temporally files early.
+
+	* test/ruby/test_process.rb: ditto.
+
+	* test/psych/test_exception.rb: ditto.
+
+Tue Jan 29 09:26:20 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* ext/socket/socket.c (sock_s_pack_sockaddr_un): calculate the
+	  correct address length of an abstract socket.
+
+	* test/socket/test_unix.rb: related test.
+
+Mon Jan 28 18:02:16 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_backtrace.c (rb_debug_inspector_frame_{class,binding,iseq}_get):
+	  use long as index as well as RARRAY_LEN().
+
+Mon Jan 28 17:51:38 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/envutil.rb (assert_separately): imply no core dump.
+
+Mon Jan 28 12:32:31 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/fcntl/fcntl.c: update document.  use "file descriptor" instead
+	  of "file handle" because it is not used other Ruby documents and
+	  it is confusing with Windows file handle.
+	  correct F_DUPFD behavior.
+
+Sat Jan 26 22:39:12 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* marshal.c (w_object): dump instance variables of the result of
+	  marshal_dump not the original object.  [ruby-core:51163] [Bug #7627]
+
+	* complex.c (nucomp_marshal_dump): need to copy instance variables.
+
+	* rational.c (nurat_marshal_dump): ditto.
+
+Sat Jan 26 13:35:56 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/fcntl/fcntl.c:  Document Fcntl constants
+
+Sat Jan 26 12:54:40 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* hash.c (rb_env_size):  Restored documentation for ENV.size
+
+	* lib/drb/drb.rb:  Documented DRb::DRb#run.
+
+	* lib/erb.rb (class ERB):  Improved documentation of ERb.
+
+	* transcode.c:  Documented Encoding::Converter constants.
+
+Sat Jan 26 10:09:57 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/webrick/accesslog.rb:  Improved WEBrick documentation.
+	* lib/webrick/cgi.rb:  ditto.
+	* lib/webrick/config.rb:  ditto.
+	* lib/webrick/cookie.rb:  ditto.
+	* lib/webrick/httpauth/authenticator.rb:  ditto.
+	* lib/webrick/httpauth/basicauth.rb:  ditto.
+	* lib/webrick/httpauth/digestauth.rb:  ditto.
+	* lib/webrick/httpproxy.rb:  ditto.
+	* lib/webrick/httprequest.rb:  ditto.
+	* lib/webrick/httpresponse.rb:  ditto.
+	* lib/webrick/https.rb:  ditto.
+	* lib/webrick/httpserver.rb:  ditto.
+	* lib/webrick/httpservlet/cgihandler.rb:  ditto.
+	* lib/webrick/httpservlet/filehandler.rb:  ditto.
+	* lib/webrick/httpservlet/prochandler.rb:  ditto.
+	* lib/webrick/httputils.rb:  ditto.
+	* lib/webrick/httpversion.rb:  ditto.
+	* lib/webrick/log.rb:  ditto.
+	* lib/webrick/server.rb:  ditto.
+	* lib/webrick/ssl.rb:  ditto.
+	* lib/webrick/utils.rb:  ditto.
+	* lib/webrick/version.rb:  ditto.
+
+Sat Jan 26 08:29:33 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* ext/socket/raddrinfo (rsock_unix_sockaddr_len): renamed from
+	  rsock_unixpath_len, because it returns not the length of the path,
+	  but the length of a socket address for the path.
+
+Sat Jan 26 01:12:23 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/ruby/test_io.rb (test_ioctl_linux): skip if a platform is
+	  not x86 because linux ioctl request number depend on cpu arch.
+	  At least, alpha, mips, sparc and ppc have a different number.
+	  [Bug #7718] [ruby-core:51544]
+
+Fri Jan 25 19:14:24 2013  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: use TlsAlloc instead of __declspec(thread)
+	  to avoid SEGV if win32ole.so loaded with LoadLibrary in Windows
+	  XP or earlier.
+
+Fri Jan 25 16:47:31 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* ext/socket/raddrinfo.c (rsock_unixpath_len, init_unix_addrinfo),
+	  ext/socket/unixsocket.c (unixsock_connect_internal,
+	  rsock_init_unixsock): calculate the correct address length of
+	  an abstract socket.  Without this fix, sizeof(struct sockaddr_un)
+	  is specified as the length of an abstract socket for bind(2) or
+	  connect(2), so the address of the socket is filled with extra NUL
+	  characters.  See unix(7) for details.
+
+	* ext/socket/lib/socket.rb (unix_server_socket): don't access the
+	  file system if the platform is Linux and path starts with NUL,
+	  which means that the socket is an abstract socket.
+
+	* test/socket/test_unix.rb: related test.
+
+Fri Jan 25 13:02:27 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/drb/drb.rb:  Updated documentation based on patch from Vincent
+	  Batts.  [ruby-trunk - Bug #7714]
+	* lib/drb/ssl.rb:  ditto.
+
+Fri Jan 25 12:23:29 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/drb/drb.rb:  Improved documentation by adding or hiding methods.
+	* lib/drb/eq.rb:  ditto.
+	* lib/drb/extserv.rb:  ditto.
+	* lib/drb/gw.rb:  ditto.
+	* lib/drb/invokemethod.rb:  ditto.
+	* lib/drb/observer.rb:  ditto.
+	* lib/drb/ssl.rb:  ditto.
+	* lib/drb/timeridconv.rb:  ditto.
+	* lib/drb/unix.rb:  ditto.
+
+	* sample/drb/gw_cu.rb:  Fixed bug in DRb gateway sample.
+
+Fri Jan 25 12:01:56 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h: modify a comment about rb_iseq_t::local_size.
+	  A patch by davidbalbert (David Albert) [Bug #6750]
+
+Fri Jan 25 10:36:31 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/mkmf.rb:  Documented MakeMakefile constants.  Hide implementation
+	  details from RDoc
+
+Fri Jan 25 10:04:07 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/compatibility.rb:  Hide compatibility shims from RDoc
+
+	* lib/rubygems/config_file.rb:  Hide RbConfig use from RDoc
+
+	* lib/rubygems/test_case.rb:  Added note to use realpath when 1.8
+	  support is dropped.
+
+Fri Jan 25 09:14:43 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/generator/darkfish.rb:  Fixed debug message.  RDoc bug #174
+	  by Thomas Leitner.
+
+	* lib/rdoc/store.rb:  Fixed deletion of ri attribute data when a class
+	  was loaded then saved.  RDoc bug #171 by Thomas Leitner.
+	* test/rdoc/test_rdoc_store.rb:  Test for above.
+
+Thu Jan 24 19:55:25 2013  Shota Fukumori  <her@sorah.jp>
+
+	* NEWS (yaml): Write about bundled libyaml.
+
+Thu Jan 24 16:54:34 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/calling_methods.rdoc:  Added a Method Lookup section.
+	* doc/syntax/refinements.rdoc (Method Lookup):  Clarified that
+	  refinement methods are looked up in classes, not instances.
+
+Thu Jan 24 16:49:17 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* enum.c (enum_zip): Fix error message
+
+	* array.c (take_items): Same, for Array#zip
+
+Thu Jan 24 16:47:26 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* enumerator.c (lazy_zip): raise error for bad arguments
+	  [Bug #7706]
+
+Thu Jan 24 16:05:08 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* enumerator.c: Optimize Lazy#zip when passed only arrays
+	  [Bug #7706]
+
+Thu Jan 24 15:21:17 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* enumerator.c: Fix state handling for Lazy#zip,{drop_take}{_while}
+	  [bug #7696] [bug #7691]
+
+Thu Jan 24 11:43:47 2013  Narihiro Nakamura  <authornari@gmail.com>
+
+	* eval.c (f_current_dirname): Add documentation about "__dir__
+	  returns always an absolute path". [Bug #7729]
+
+Thu Jan 24 10:28:30 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* NEWS (RDoc):  Added mention of page support and markdown support.
+
+Thu Jan 24 09:40:13 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/refinements.rdoc:  Added refinements document based on
+	  the specification from the wiki.
+	* doc/syntax.rdoc:  Added link to refinements document.
+
+Wed Jan 23 16:29:09 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_spawn, rb_w32_aspawn_flags): fix missing
+	  initialization.  pointed out by phasis68 (Heesob Park) at
+	  [ruby-core:51579].  [Bug #7721]
+
+Wed Jan 23 16:18:04 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#try_constant): fix for large unsigned.
+
+	* lib/mkmf.rb (MakeMakefile#try_constant): fix for larger constants.
+
+	* test/mkmf/test_constant.rb: tests for try_constant.
+	  TODO: define check_constant and use it.
+
+Wed Jan 23 13:35:37 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* thread_pthread.c (ruby_init_stack): ignore `STACK_END_ADDRESS'
+	  if Ruby interpreter is running on co-routine.
+	  [Feature #2294]
+	  https://bugs.ruby-lang.org/issues/2294#note-18
+
+Wed Jan 23 12:28:22 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_spawn, rb_w32_aspawn_flags): check the results
+	  of acp_to_wstr() which can return NULL.  [ruby-core:51557] [Bug #7721]
+
+Wed Jan 23 10:40:49 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/assignment.rdoc (Implicit Array Assignment):  Clarify
+	  that "left-hand side" means "of the assignment".  Suggested by Jorge
+	  Dias.
+	* doc/syntax/assignment.rdoc (Multiple Assignment):  ditto.
+
+Wed Jan 23 10:34:47 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/assignment.rdoc (Local Variables and Methods):  Fixed
+	  example showing caching of a method's results into a local variable.
+	  Added not about using an explicit receiver to call a method that
+	  matches a local variable.  Suggested by markov_twain on twitter.
+
+Wed Jan 23 10:20:08 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/README:  Fixed typo.  Patch by Pradeep Sahoo.
+	  Fixes #240 on github
+
+Wed Jan 23 09:53:39 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/servlet.rb:  Fixed display of site and home documentation.
+	  Fixes rdoc issue #170 by Thomas Leitner.
+	* test/rdoc/test_rdoc_servlet.rb:  Test for above.
+
+	* lib/rdoc/code_object.rb:  Split #initialize_visibility from
+	  #initialize for reuse when loading a stored object.
+	  Fixes rdoc issue #171 by Thomas Leitner.
+
+	* lib/rdoc/any_method.rb:  Initialize visibility for #display?  For
+	  rdoc issue #171
+	* lib/rdoc/attr.rb:  ditto.
+	* lib/rdoc/class_module.rb:  ditto.
+	* lib/rdoc/top_level.rb:  ditto.
+	* test/rdoc/test_rdoc_any_method.rb:  Test for above.
+	* test/rdoc/test_rdoc_attr.rb:  ditto.
+	* test/rdoc/test_rdoc_class_module.rb:  ditto.
+	* test/rdoc/test_rdoc_constant.rb:  ditto.
+	* test/rdoc/test_rdoc_top_level.rb:  ditto.
+
+Wed Jan 23 06:43:26 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/test_case.rb:  Use Dir.tmpdir for rubygems tests instead
+	  of ./tmp/test.  Fixes [ruby-trunk - Bug #7717]
+
+Tue Jan 22 22:58:03 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-electric.el (ruby-electric-curlies): Fix the bug where
+	  an open curly inserted in a string is always replaced with a
+	  hash sign.
+
+Mon Jan 21 15:41:33 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/mkconfig.rb: BASERUBY is transient at core build.
+
+Mon Jan 21 13:51:21 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb ($extmk): traverse parent directories for the case
+	  srcdir is a symlink.
+
+Sun Jan 20 23:55:37 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* marshal.c (w_object, r_object0): separate respond_to checks and
+	  calling, and get back to the old behavior for 2.0.  [Bug #7564]
+
+Sun Jan 20 22:24:28 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/vpath.rb (VPath#def_options): hack for msys make, which
+	  converts a command line argument to non-msys command seems like a
+	  path list automagically.  [Bug #7710] [ruby-core:51489]
+
+Sat Jan 19 11:35:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* struct.c (Struct.new): Document Struct.new with block
+	  Patch by Hiroyuki Iwatsuki [Bug #7674]
+
+Sat Jan 19 09:52:46 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/miscellaneous.rdoc:  Added section on defined?
+
+Sat Jan 19 09:27:31 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/assignment.rdoc (Local Variables and Methods):  Made it
+	  more clear that local variables are created by the parser, not
+	  execution.  Thanks to John Hawthorn.
+
+Sat Jan 19 09:15:58 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/assignment.rdoc:  Improved links
+	* doc/syntax/methods.rdoc:  ditto.
+
+	* doc/syntax.rdoc:  Added link to assignment document
+
+Sat Jan 19 08:47:33 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/assignment.rdoc:  Added a syntax document on assignment.
+
+Fri Jan 18 14:11:01 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/methods.rdoc:  Added Array Decomposition.
+
+Fri Jan 18 12:54:21 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/rbinstall.rb (gem): Gem.ensure_gem_subdirectories makes
+	  subdirectories group-writable, so make them with $dir_mode.
+
+Fri Jan 18 11:24:33 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/win32ole/win32ole.c (ole_initialize): uninitialize OLE at thread
+	  ends.  [Bug #2618] [ruby-core:27634]
+
+	* ext/win32ole/win32ole.c (ole_initialize): initialize OLE for each
+	  threads.  [Bug #2618] [ruby-core:27634]
+
+Thu Jan 17 22:10:35 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rubygems/ext/builder.rb (Gem::Ext::Builder.make): Remove
+	  .time dependency from *.rb install target. It causes needless
+	  *.rb install. [Bug #7698] [ruby-core:51437]
+	  Reported by Tadashi Saito. Thanks!!!
+	* test/rubygems/test_gem_installer.rb
+	  (TestGemInstaller#test_install_extension_and_script): Add a test
+	  for the above change.
+
+Thu Jan 17 21:08:20 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* eval.c: Fix a typo in ruby_finalize() documentation.
+
+Thu Jan 17 20:28:18 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* object.c: Typo in Kernel#hash documentation.
+	  Patch by zed_0xff [Github Fixes #237]
+
+Thu Jan 17 10:48:56 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/scalar_scanner.rb: use constants rather than
+	  calculating Inf and NaN.
+
+Thu Jan 17 10:21:05 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/miscellaneous.rdoc:  Added Ending an Expression and
+	  indentation.
+
+Thu Jan 17 09:30:21 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/installer.rb:  Untaint string when checking output
+	  for $SAFE=1
+
+	* lib/rubygems/specification.rb:  Keep previously loaded specs as
+	  active.  This prevents double loading when refreshing the gem list.
+	* test/rubygems/test_gem.rb:  Test for above
+
+	* lib/rubygems.rb:  Bump version to 2.0.0.rc.2
+
+Thu Jan 17 09:08:37 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/control_expressions.rdoc:  Added ? : ternary if
+
+Thu Jan 17 08:36:04 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/miscellaneous.rdoc:  Added documentation for alias, undef,
+	  BEGIN, END.
+	* doc/syntax/modules_and_classes.rdoc (Constants):  Fixed unwrapped
+	  paragraph with trailing whitespace.
+	* doc/syntax/modules_and_classes.rdoc (Scope):  Added section pointing
+	  to alias and undef documentation.
+	* doc/syntax.rdoc:  Added link to miscellaneous section.
+
+Thu Jan 17 07:50:26 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/control_expressions.rdoc (Flip-Flop):  Added a section on
+	  the flip-flop.
+
+Thu Jan 17 06:59:51 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/control_expressions.rdoc (if Expressions):  Fixed markup
+	  error.  Fixes #235 on github by FlyingFoX.
+
+Thu Jan 17 06:53:58 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/literals.rdoc (Strings):  Fixed typo.  Fixes #236 on
+	  github by Doug Yun.
+
+Wed Jan 16 18:45:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/win32ole/lib/win32ole.rb: use TracePoint to hook all thread
+	  creation not only by Thread.new and to get rid of interference with
+	  svar scope.  [Bug #7681] [ruby-core:51365]
+
+Wed Jan 16 09:35:53 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* .document:  Removed extra space
+	* lib/irb/lc/.document:  Hide help-message
+	* lib/minitest/.document:  Hide README.txt
+	* lib/rake/lib/.document:  Hide project.rake
+	* lib/rdoc/generator/template/json_index/.document:  Hide JavaScript
+	  files
+	* lib/rubygems/ssl_certs/.document:  Hide PEM files.
+
+Wed Jan 16 03:54:28 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/control_expressions.rdoc:  Omit optional "then" for if and
+	  unless expressions.  Improved description of "a if a = 0.zero?"
+	  NameError.  Note that "do" for for loop is optional.
+
+Wed Jan 16 03:28:47 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/calling_methods.rdoc:  Link to defining methods.
+	* doc/syntax/methods.rdoc:  Link to calling methods, fixed typo.
+
+Wed Jan 16 03:15:00 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/methods.rdoc:  Fixed link
+	* doc/syntax/modules_and_classes.rdoc:  Fixed link
+	* doc/syntax.rdoc:  Updated with links to the recently added pages
+
+Wed Jan 16 03:05:50 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/control_expressions.rdoc (redo Statement):  Added note
+	  about retry.
+	* doc/syntax/exceptions.rdoc:  Added retry statement
+
+Tue Jan 15 23:12:34 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/vpath.rb (VPath#list): default separator to PATH_SEPARATOR from
+	  configure.in for make, not same name constant of File for use in ruby.
+
+Tue Jan 15 22:30:04 2013  Keiju Ishitsuka  <keiju@ishitsuka.com>
+
+	* lib/irb/ext/save-history.rb: identify rightly a status of a
+	  history file that already exists [Bug #7694]. Thanks Nobuhiro IMAI
+	  for this patch.
+
+Tue Jan 15 15:55:28 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/control_expressions.rdoc:  Added description of control
+	  expressions in ruby.
+
+Tue Jan 15 13:33:00 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/methods.rdoc (Method Names):  Added method names including
+	  operator methods.
+	* doc/syntax/methods.rdoc (Return Values):  Added note that assignment
+	  methods ignore return values.
+	* doc/syntax/precedence.rdoc:  Added document describing precedence.
+
+Tue Jan 15 11:49:31 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/methods.rdoc (Block Argument):  Added section on block
+	  argument.  Thanks to Andy Lindeman.
+
+Tue Jan 15 10:54:59 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/calling_methods.rdoc (Arguments):  Added improved
+	  introduction to arguments including passing style and lazy
+	  evaluation.  Thanks to Matt Aimonetti.
+	* doc/syntax/calling_methods.rdoc (Positional Arguments):  Added
+	  description for sending a message to a method with *arguments
+	* doc/syntax/calling_methods.rdoc (Default Positional Arguments):
+	  Added description.  Thanks to Andy Lindeman.
+	* doc/syntax/calling_methods.rdoc (Block Local Arguments):
+	  Added description of block locals.  Thanks to Justin Collins.
+	* doc/syntax/calling_methods.rdoc (Hash to Keyword Arguments):  Added
+	  section describing ** operator.  Thanks  to Justin Collins.
+
+Tue Jan 15 10:40:18 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* test_lazy_enumerator: Test that map & flat_map also require a block
+
+Tue Jan 15 09:22:47 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread_pthread.c (gvl_init): Reset gvl.wait_yield explicitly when
+	  fork()ing. Patch by Apollon Oikonomopoulos. Thanks!
+	  [Bug #7693][ruby-core:51424]
+
+Tue Jan 15 09:27:56 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/calling_methods.rdoc (Receiver):  Added :: as pointed out
+	  by Tony Arcieri
+	* doc/syntax/calling_methods.rdoc (Block Argument):  Fixed { } block
+	  examples as pointed out by David Copeland.
+
+Tue Jan 15 09:10:29 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/methods.rdoc (Array/Hash Argument):  Moved above Keyword
+	  Arguments
+	* doc/syntax/methods.rdoc (Keyword Arguments):  Described ** for
+	  gathering arbitrary keyword arguments.
+
+Tue Jan 15 08:56:37 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/calling_methods.rdoc:  Added document describing method
+	  calls.
+
+Tue Jan 15 07:39:21 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/top_level.rb:  Fixed extension trimming for page names in
+	  RDoc HTML output.  [ruby-trunk - Bug #7673]
+	* test/rdoc/test_rdoc_top_level.rb:  Test for above.
+
+Mon Jan 14 23:06:41 2013  Keiju Ishitsuka  <keiju@ishitsuka.com>
+
+	* lib/irb/ext/save-history.rb: outputs its history to
+	  owner-only-readable file and change the permission of a file that
+	  already exists [Bug #7694]. Thanks Nobuhiro IMAI for bug reports.
+
+Mon Jan 14 17:12:48 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c (lazy_flat_map_func): flat_map should call each only
+	  when the value of a block returns a forcable object.
+	  [ruby-core:51401] [Bug #7690]
+
+	* enumerator.c (lazy_flat_map): add documentation.
+
+	* test/ruby/test_lazy_enumerator.rb: related test.
+
+Mon Jan 14 16:42:28 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* enumerator.c: Require block for Lazy#{take|drop}_while [Bug #7692]
+
+Mon Jan 14 14:41:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_to_s): use CRuby style.
+
+Mon Jan 14 14:39:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c: use `RB_TYPE_P(x, t)` instead of
+	  `TYPE(x) == t`.
+
+Mon Jan 14 10:18:56 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* enumerator.c: Fix size for Enumerator::Lazy#flat_map
+
+Mon Jan 14 07:12:52 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix/lup_decomposition: Fix bugs with LUP Decomposition of
+	  rectangular matrices. [rubyspec:ba849801a85]
+
+Mon Jan 14 06:46:53 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* regparse.c (add_ctype_to_cc): don't check dup warn on adding
+	  negative ctype to cclass. [Bug #7471] [ruby-core:50344]
+
+Mon Jan 14 06:06:03 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix/eigenvalue_decomposition: Backport bugfix of Jama 1.0.3
+	  [rubyspec:df87040be371]
+
+Sun Jan 13 16:45:00 2013  Zachary Scott <zachary@zacharyscott.net>
+
+	* ext/psych/yaml/scanner.c: Fix typos, patch by James Dabbs
+	  [Github tenderlove/psych#118]
+
+Sun Jan 13 15:00:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_sub):
+	  need to specify precision for converting Rational and Float.
+	  [ruby-dev:46544] [Bug #7404]
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_mult): ditto.
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_divide): ditto.
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_DoDivmod): ditto.
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_divremain): ditto.
+
+	* test/bigdecimal/test_bigdecimal.rb: add tests for the above fixes.
+
+Sun Jan 13 14:48:55 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix/eigenvalue_decomposition: Fix eigensystem with complex
+	  eigenvectors. Patch by pypypy567.
+	  [Bug #7208] [ruby-dev:46251] [rubyspec:242f8e55bd]
+
+	* lib/matrix/lup_decomposition.rb: Fix error for rectangular matrices
+	  [bug#7620] [ruby-core:51118] [rubyspec:41f833ee2]
+
+Sun Jan 13 14:06:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/irb.rb, lib/prime.rb: Typos in overview
+	  Patch by Ershad K [Github Fixes #234]
+
+Sun Jan 13 13:40:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/open3.rb : Typo in Open3 overview. Patch by zed_0xff
+	  [Github Fixes #233]
+
+Sat Jan 12 17:42:00 2013  Kenta Murata  <mrkn@cookpad.com>
+
+	* numeric.c (do_coerce): fix for the exceptions which the coerce
+	  method raises.  The optimization done by r38756 is preserved.
+	  [Bug #7645] [ruby-core:51213]
+
+Sat Jan 12 16:12:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/setup.mak (-runtime-): see msvcrt from link header on mswin
+	  instead of running testing executable file, for cross compiling.
+
+Sat Jan 12 08:58:47 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: merge key values that
+	  contain something besides a hash should be left in tact.
+
+	* test/psych/test_merge_keys.rb: test for change
+
+Sat Jan 12 07:52:47 2013  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (ole_set_byref): support VT_UI8|VT_BYREF,
+	  VT_I8|VT_BYREF in cygwin and mingw.
+
+	* ext/win32ole/win32ole.c (ole_variant2val): ditto.
+
+	* test/win32ole/test_win32ole_variant.rb (test_s_new_with_i8_byref):
+	  ditto.
+
+	* test/win32ole/test_win32ole_variant.rb (test_s_new_with_ui8_byref):
+	  ditto.
+
+Sat Jan 12 02:45:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* man/ruby.1 (options): include --*-encoding from r38784
+
+Fri Jan 11 23:34:48 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* ruby.c (usage): sort --*-encoding in help. (same order of -E)
+
+Fri Jan 11 16:56:29 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/mkconfig.rb: use configured libdir value to fix
+	  --enable-load-relative on systems where libdir is not default value,
+	  overridden in config.site files.  [ruby-core:47267] [Bug #6903]
+
+Fri Jan 11 11:59:32 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (dispose_string): use rb_str_free for freeing string in
+	  parse.y. by Sokolov Yura <funny.falcon@gmail.com>
+	  https://github.com/ruby/ruby/pull/87 fix GH-87
+
+Fri Jan 11 09:56:22 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* insns.def (defineclass): private constants should not be accessed
+	  by scoped module definitions.  The bug was introduced in r38495.
+
+	* test/ruby/test_module.rb: related test.
+
+Fri Jan 11 02:11:59 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/rbconfig/obsolete.rb (respond_to_missing?): use send because
+	  RbConfig.respond_to_missing? is now private.
+
+Thu Jan 10 22:00:58 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h (VM_DEBUG_BP_CHECK): set 0 as default.
+	  This flag specifies checking BP consistency on each frame popping.
+	  Now, we don't have any trouble on it, so I remove it.
+	  If you feel any bugs about VM execution, then set it to 1.
+
+Thu Jan 10 21:03:05 2013 TAKANO `takano32' Mitsuhiro <tak@no32.tk>
+
+	* cont.c: define FIBER_USE_NATIVE as 0 in ia64.
+
+Thu Jan 10 19:39:05 2013  TAKANO `takano32' Mitsuhiro <tak@no32.tk>
+
+	* thread.c: fix RB_GC_SAVE_MACHINE_REGISTER_STACK define for ia64.
+
+Thu Jan 10 17:45:39 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* Makefile.in, win32/Makefile.sub ($(MKFILES)): continue if Makefile
+	  unchanged.
+
+Thu Jan 10 16:31:20 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_search_super_method): raise a TypeError
+	  instead of a NotImplementedError if self is not an instance of the
+	  current class.  [ruby-dev:39772] [Bug #2402]
+
+Thu Jan 10 16:47:18 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/tk/extconf.rb (find_tcltk_header): use have_header instead of
+	  try_cpp, which is incredibly slow with VC.
+
+Thu Jan 10 15:55:28 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* numeric.c (do_coerce): remove an unused variable.
+
+Thu Jan 10 15:35:55 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* tool/gen_dummy_probes.rb: remove comments in probes.d to fix the
+	  compilation error introduced by r38755.
+
+Thu Jan 10 11:15:04 2013  Kenta Murata  <mrkn@cookpad.com>
+
+	* numeric.c (do_coerce): speed optimization by using rb_check_funcall
+	  instead of rb_rescue + rb_funcall.
+	  This fix is based on the patch by Benoit Daloze.
+	  [Bug #7645] [ruby-core:51213]
+
+Thu Jan 10 11:15:04 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* probes.d: updating probes to be more symmetrical, adding
+	  documentation.
+
+	* load.c: ditto
+
+Thu Jan 10 04:23:07 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/scalar_scanner.rb: strip trailing dots from
+	  floats so that Float() will not raise an exception.
+
+	* test/psych/test_numeric.rb: test to ensure "1." can be loaded
+
+	* test/psych/test_string.rb: make sure "1." can round trip
+
+Thu Jan 10 03:38:40 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: ascii only binary strings
+	  will be dumped as unicode.  Thanks Paul Kunysch!
+
+	* test/psych/test_string.rb: appropriate test
+
+Thu Jan 10 03:29:55 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (compile_array_): modify wrong optimization.
+	  A script "[print(1)]; print(2)" should output "12".
+	  However, the compiler had eliminated "[print(1)]" expression
+	  because it is void expression (unused array).
+	  Of course, side-effect should be remained.
+	  This issue is reported by Masaya Tarui.
+
+	* bootstraptest/test_literal.rb: add a test.
+
+Wed Jan  9 22:07:42 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* load.c (load_lock): if thread shield is destroyed and there is no
+	  waiting thread, insert new thread shield into load_table.
+	  [Bug #7530] [ruby-core:50645]
+
+Wed Jan  9 21:43:32 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* load.c (load_lock): revert r38744. it should acquire new thread
+	  shield.
+
+Wed Jan  9 15:40:18 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm.c (th_init, ruby_thread_init): initialize root_svar with Qnil,
+	  since lep_svar_place() expects uninitialized svar to be nil, not 0.
+
+Wed Jan  9 13:20:23 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* test/ruby/test_require.rb: improve test for r38744.
+	  fix to use Tempfile instead of temporary file in current directory.
+	  the patch is from nobu (Nobuyoshi Nakada).
+
+Wed Jan  9 09:53:23 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* load.c (load_lock): fix not to delete thread shield twice.
+	  it may break the shield locked by another thread.
+	  [Bug #7530] [ruby-core:50645]
+
+	* test/ruby/test_require.rb: a test for above.
+
+Wed Jan  9 02:13:22 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (RBasic): to be aligned on a VALUE size
+	  boundary.  [Bug #7647]
+
+Tue Jan  8 14:41:41 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_core.h (rb_iseq_t): move flip_cnt from struct iseq_compile_data,
+	  because it has same life span as enclosing iseq.  [Bug #7671]
+	  [ruby-core:51296]
+
+Mon Jan  7 23:43:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (rmpd_power_by_big_decimal):
+	  add RB_GC_GUARD to prevent the intermediate object is GCed too early.
+	  This patch was made by Yusuke Endoh.  [Bug #7044] [ruby-core:47632]
+
+	* test/bigdecimal/test_bigdecimal.rb: add a reproduction test for
+	  the issue [Bug #7044]
+
+Mon Jan  7 21:40:36 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_method.c (Init_eval_method): main.public and main.private
+	  should be private.
+
+	* proc.c (Init_Proc): main.define_method should be private.
+
+	* test/ruby/test_module.rb: related test.
+
+Mon Jan  7 20:48:47 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (Init_eval): main.include should be private.
+	  [ruby-core:51293] [Bug #7670]
+
+	* test/ruby/test_module.rb (test_top_include_is_private): a new test
+	  for the above change.
+
+Mon Jan  7 20:29:50 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* NEWS: remove description about `require "refinement"'.
+
+Mon Jan  7 20:15:49 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (Init_eval): enable Refinements by default.
+	  [ruby-core:51286] [Bug #7667]
+
+	* eval.c (rb_mod_refine, top_using): show a warning when
+	  Module#refine or main.using is called at the first time.
+
+	* ext/refinement/*: removed the extension library "refinement".
+
+	* test/ruby/test_refinement.rb: fix for the above changes.
+
+Mon Jan  7 17:34:22 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h (RUBY_EVENT_SPECIFIED_LINE): make it special.
+	  This flag is not contained by RUBY_EVENT_TRACEPOINT_ALL.
+	  This event is experimental one. It is possible to remove/rename
+	  flag name after 2.0.1.
+
+	* vm_trace.c (get_event_id): return :line if SPECIFIED_LINE was
+	  occurred. `:specified_line' never been returned.
+
+Mon Jan  7 15:42:10 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (f_kwrest): allow bare kwrest_mark as valid syntax.  its
+	  semantics is still undefined.  [Bug #7662] [ruby-core:51269]
+
+Mon Jan  7 15:31:58 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (f_kwrest): reject duplicated kwrest argument name.
+
+Mon Jan  7 15:24:10 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c (rb_threadptr_exec_event_hooks_orig): pop tag before
+	  JUMP_TAG() if frame is `finish' frame.
+	  Without this patch, there is an inconsistency between control
+	  frame stack and tags stack.
+	  [Bug #7668]
+
+	* test/ruby/test_settracefunc.rb: add a test for above.
+
+Mon Jan  7 15:21:48 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* Makefile.in, common.mk (fake, yes-fake, no-make): these dependencies
+	  are not platform dependent.
+
+	* win32/Makefile.sub ($(arch)-fake.rb): workaround.
+
+Mon Jan  7 12:09:24 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_callee_setup_arg_complex, vm_yield_setup_block_args):
+	  set keyrest hash after making rest array, so that the last element
+	  will not be overwritten.  [ruby-core:51278] [Bug #7665]
+
+Mon Jan  7 09:37:24 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* NEWS: add a NEWS entry about RubyVM.
+
+Sun Jan  6 19:06:57 2013  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* win32/Makefile.sub: Fix build with VC.
+	  Patch by Charlie Savage. Fixes [ruby-core:51261]
+
+Sun Jan  6 18:43:48 2013  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* bootstraptest/test_io.rb: add a test for [ruby-dev:46834].
+
+	* io.c (rb_cloexec_fcntl_dupfd) Use an emulation with dup(2) when
+	  fcntl(2) and/or F_DUPFD is unavailable.
+	  Suggested by akr.
+
+	* configure.in (HAVE_FCNTL): NativeClient does not provide fcntl(2).
+
+Sun Jan  6 11:11:26 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/modules_and_classes.rdoc:  Fixed typo.
+
+Sun Jan  6 05:35:18 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/modules_and_classes.rdoc:  Added singleton classes
+	  documentation.
+
+Sun Jan  6 02:22:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/webrick/httpservlet/abstract.rb (WEBrick::HTTPServlet): Typo in
+	  example. Patch by shlensky [Fixes #232 on github]
+
+Sat Jan  5 21:15:10 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http/generic_request.rb:
+	  Amazon ECA API and GTE/1.3 disallow requests whose host has port
+	  number if its port number equals to default port number of the
+	  scheme. [Bug #7650]
+
+Sat Jan  5 13:58:59 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/modules_and_classes.rdoc:  Improved description of methods
+	  on a module or class as suggested by Tobias Buhlmann
+
+Sat Jan  5 13:38:07 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* string.c (rb_str_enumerate_lines): fix invalid byte sequence error
+	  when a separator is passed. The patch is from yoshidam (Yoshida
+	  Masato).
+	  [Bug #7646] [ruby-dev:46827]
+
+	* test/ruby/test_string.rb: a test for above.
+
+Sat Jan  5 12:25:42 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/envutil.rb (Test::Unit::Assertions#assert_in_out_err):
+	  check stdout and stderr both.
+
+Sat Jan  5 10:21:54 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/modules_and_classes.rdoc:  Added documentation of syntax
+	  for Modules and Classes.
+	* doc/syntax/methods.rdoc:  Moved some text to the Modules and
+	  Classes syntax document.
+
+Sat Jan  5 08:38:27 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/methods.rdoc:  Added return values and scope sections,
+	  slightly modified from the original patch.  Fixes #227 from github by
+	  Dave Brown.
+
+Sat Jan  5 08:21:41 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (rb_cloexec_fcntl_dupfd): improve #ifdef condition.
+	* io.c (rb_maygvl_fd_fix_cloexec): ditto.
+
+Sat Jan  5 07:54:59 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/commands/cleanup_command.rb:  Clean all possible gems
+	  using multiple passes.  Fixes RubyGems bug #422.  Refactored for
+	  maintainability.
+	* test/rubygems/test_gem_commands_cleanup_command.rb:  Test for above.
+
+Sat Jan  5 05:04:39 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* gc.c (vm_xrealloc): add a few comment why we avoid realloc(ptr,0).
+
+Fri Jan  4 20:17:06 2013  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* Makefile.in (RBCONFIG): Moved from common.mk in order to use the
+	  variable in Makefile.in.
+
+	* win32/Makefile.sub (RBCONFIG): Ditto.
+
+Fri Jan  4 19:45:50 2013  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* common.mk (run, parse): Use BTESTRUBY instead of MINIRUBY to handle
+	  cross-compiling cases, e.g. NativeClient.
+
+Fri Jan  4 17:58:16 2013  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* common.mk (yes-btest): btest depends on also $(arch)-fake.rb and
+	  rbconfig.rb on building for NativeClient.
+
+	* Makefile.in (fake): Avoid generating $(arch)-fake.rb unless cross
+	  compiling.
+
+	* configure.in (CROSS_COMPILING): New substitution.
+
+Fri Jan  4 16:26:45 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/doctor.rb:  Process directories in order in case the
+	  filesystem doesn't.  [ruby-trunk - Bug #7618]
+
+	  Process specifications before other directories in case of bugs.
+	* test/rubygems/test_gem_doctor.rb:  Test for above.
+
+	* lib/rubygems.rb:  Updated version.
+
+	* test/rubygems/test_require.rb:  Fixed double require of
+	  benchmark.rb.  RubyGems bug #420.
+
+	* test/rubygems/test_gem_commands_check_command.rb:  Fixed unused
+	  variable warnings.
+	* test/rubygems/test_gem_commands_query_command.rb:  ditto
+	* test/rubygems/test_gem_installer.rb:  ditto
+
+Fri Jan  4 15:05:25 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/cross_reference.rb:  Fixed matching of C#=== or #===.  RDoc
+	  bug #164
+	* test/rdoc/test_rdoc_cross_reference.rb:  Test for above.
+
+	* lib/rdoc/parser/changelog.rb:  Fixed parsing of dates.  RDoc bug #165
+	* test/rdoc/test_rdoc_parser_changelog.rb:  Test for above.
+
+	* lib/rdoc/parser.rb:  Fixed parsing multibyte files with incomplete
+	  characters at byte 1024.  [ruby-trunk - Bug #6393]
+	  Fixed handling of -E.  [ruby-trunk - Bug #6392]
+	* test/rdoc/test_rdoc_options.rb:  Test for above.
+	* test/rdoc/test_rdoc_parser.rb:  ditto.
+	* test/rdoc/test_rdoc_parser_c.rb:  ditto.
+	* test/rdoc/test_rdoc_parser_changelog.rb:  ditto.
+	* test/rdoc/test_rdoc_parser_markdown.rb:  ditto.
+	* test/rdoc/test_rdoc_parser_rd.rb:  ditto.
+	* test/rdoc/test_rdoc_rdoc.rb:  ditto.
+
+	* lib/rdoc/tom_doc.rb:  Fixed parsing of [] in TomDoc arguments list.
+	  RDoc bug #167
+	* test/rdoc/test_rdoc_tom_doc.rb:  Test for above.
+
+	* lib/rdoc.rb:  Update version.
+
+Fri Jan  4 11:51:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/forwardable.rb: Fix rdoc parameters for ::def_single_delegator.
+	  Patch by Vladimir Andrijevik [Github Fixes #230]
+
+Fri Jan  4 00:35:11 2013  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	Fix failures on btest for NativeClient.
+	* bootstraptest/runner.rb (nacl?): New method to distinguish NaCl
+	  cross build.
+
+	* bootstraptest/test_io.rb: Skip unsupported operations.
+
+	* bootstraptest/test_literal.rb: ditto.
+
+Fri Jan  4 00:29:40 2013  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* io.c (rb_cloexec_fcntl_dupfd): Fix failures in
+	  bootstrap_test/test_io.rb.  NativeClient does not support F_DUPFD
+	  but supports dup2(2).
+
+Thu Jan  3 17:46:50 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/element.rb (REXML::Elements#add): Remove too much
+	  "elements" in document. Sorry...
+
+Thu Jan  3 17:42:32 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/element.rb (REXML::Elements#each): Add missing
+	  "elements" in document. [ruby-talk:402713]
+	  Reported by Wesley Rishel. Thanks!!!
+
+Thu Jan  3 15:13:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/psych/lib/psych.rb (Psych.load): Return value of
+	  Psych::SyntaxError.message should be same as example.
+	  Patch by Ippei Obayashi [ruby-core:51193] [Bug #7636]
+
+Thu Jan  3 14:58:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/forwardable.rb (SingleForwardable): Fix example in overview
+	  Patch by Vladimir Andrijevik [Github Fixes #231]
+
+Thu Jan  3 14:32:47 2013  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* configure.in (OBJCOPY):  Fixes build error for NativeClient.
+	  Avoid disabling OBJCOPY for NativeClient.
+
+	* thread_pthread.c (rb_reserved_fd_p): USE_SLEEPY_TIMER_THREAD is
+	  always defined.  Fixes compilation error for NativeClient.
+
+Wed Jan 02 03:09:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/zlib/zlib.c (Zlib::GzipReader): Fix typo by zed_0xff
+	  [Fixes Github #229]
+
+Wed Jan 02 02:29:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* hash.c (rb_hash_update): Revert documentation from r38672
+	  See: https://github.com/ruby/ruby/pull/228#issuecomment-11791013
+
+Wed Jan 02 02:16:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* hash.c (rb_hash_update): Documentation for Hash#merge and shallow
+	  copies Patch by Yorick Peterse [Fixes Github #228]
+
+Mon Dec 31 15:10:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* vm_backtrace.c: Add documentation for Kernel#caller_locations,
+	  Kernel#caller, and Thread::Backtrace::Location
+
+Mon Dec 31 13:05:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* test/ruby/test_backtrace.rb: Add test for r37957 [Feature #7434]
+
+Sun Dec 30 23:33:36 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (simple_re_meta): escaped closing parenthesis has different
+	  meaning.  [Bug #7610] [ruby-core:51088]
+
+Sun Dec 30 12:09:47 2012  Charlie Somerville  <charlie@charliesomerville.com>
+
+	* configure.in: use 4 argument form of AC_CHECK_HEADERS to force
+	  autoconf to use compiler's result
+
+Sun Dec 30 10:58:04 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* test/ruby/test_keyword.rb: add a test for passing hash
+	  as a last argument. [ruby-dev:46712] [Bug #7529]
+
+Sun Dec 30 10:51:29 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm_insnhelper.c: set keyword hash on Proc/block calls.
+	  [ruby-core:51172] [Bug #7630]
+
+	* test/ruby/test_keyword.rb: add tests for above.
+
+Sat Dec 29 21:57:11 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+
+	* lib/irb/completion.rb: treat rightly completion for symbol on irb
+	  [Bug #7632].
+
+Sat Dec 29 21:51:30 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* ext/curses/curses.c (window_cury, window_curx, window_maxy,
+	  window_maxx, window_begy, window_begx): use RB_UNUSED_VAR()
+	  to suppress unused-but-set-variable warnings.
+
+Sat Dec 29 16:45:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* iseq.c (RubyVM::InstructionSequence): rdoc formatting
+
+Sat Dec 29 15:28:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* iseq.c (RubyVM::InstructionSequence):	Add rdoc for new iseq features
+	  added from r38085, this includes ::of, #path, #absolute_path,
+	  #label, #base_label, #first_lineno, and #inspect
+
+Sat Dec 29 14:06:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* iseq.c (rb_iseq_line_trace_all, rb_iseq_line_trace_specify): Add
+	  rdoc for experimental C level api of iseq, from r38076
+
+Sat Dec 29 11:37:36 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_obj_clone): attach clone to its singleton class during
+	  cloning singleton class so that singleton_method_added will be called
+	  on it.  based on the patch by shiba (satoshi shiba)[Bug #5283] in
+	  [ruby-dev:44477].  [Bug #5283]
+
+Sat Dec 29 10:10:39 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (crt_externs.h): use standard macro AC_CHECK_HEADERS.
+
+Fri Dec 28 23:12:44 2012  Charlie Somerville  <charlie@charliesomerville.com>
+
+	* configure.in: check for the whether crt_externs.h is present when compiling
+	  for darwin (this header is missing in the iOS SDK)
+	* eval_intern.h: check HAVE_CRT_EXTERNS_H before including crt_externs.h, if
+	  not defined, include missing/crt_externs.h instead
+	* hash.c: ditto
+	* missing/setproctitle.c: ditto
+	* missing/crt_externs.h: declare _NSGetEnviron() function and define environ
+	  for iOS
+
+Fri Dec 28 21:40:36 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+
+	* lib/irb/context.rb: IRB::Context#new: Check from JobManager
+	  inside IRB namespace [Bug #7628]. Thanks rafaelfranca for bug
+	  report and its patch.
+
+Fri Dec 28 17:06:17 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-electric.el (ruby-electric-curlies): Automatically
+	  indent closing curly brackets when
+	  ruby-electric-newline-before-closing-bracket is true.
+
+Fri Dec 28 11:50:42 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_yield_setup_block_args): pass single argument to
+	  single optional parameter unchanged without splatting.  [Bug #7621]
+	  [ruby-dev:46801]
+
+Fri Dec 28 11:17:47 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* proc.c (method_eq): fix the documentation to refer to owner.
+	  [ruby-core:51105] [Bug #7613]
+
+	* test/ruby/test_method.rb (test_alias_onwer): new test to confirm
+	  that `a == b' returns false if owners of a and b are different.
+
+Fri Dec 28 07:07:43 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* def/id.def: use split(/^/) instead of String#lines to support
+	  Ruby 1.8.5 as BASERUBY.
+
+Thu Dec 27 21:56:56 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* variable.c (rb_mod_remove_const): fix segv caused by r38558.
+
+Tue Dec 28 01:13:48 2012  James Edward Gray II  <james@graysoftinc.com>
+
+	* lib/csv.rb: Added more Hash methods to CSV::Row.
+
+Thu Dec 27 23:27:15 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+
+	* lib/irb/ruby-lex.rb: make lex_state to EXPR_END when next token
+	  is an operator after SYMBEG [Bug #6378].
+
+Thu Dec 27 21:30:21 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+
+	* lib/irb/ruby-lex.rb: allow to handle recursive heredocs on
+	  irb[Bug #5648].
+
+Thu Dec 27 20:45:29 2012  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* ext/stringio/stringio.c (strio_getline): fix not to raise TypeError
+	  when limit is nil.
+	  [Bug #7232] [ruby-core:48531]
+
+	* test/stringio/test_stringio.rb: a test for above.
+
+Thu Dec 27 21:08:23 2012  Charlie Somerville  <charlie@charliesomerville.com>
+
+	* vm_core.h (VM_DEFINECLASS_TYPE): explicit cast to enum type to avoid 64->32
+	  shorten warning
+
+Thu Dec 27 20:11:29 2012  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* ext/stringio/stringio.c (strio_ungetc): raise IOError instead of RuntimeError
+	  if the string is frozen.
+	  [Bug #7231] [ruby-core:48530]
+
+	* ext/stringio/stringio.c (strio_ungetbyte): ditto.
+
+	* test/stringio/test_stringio.rb: a test for above.
+
+Wed Dec 26 23:55:18 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+
+	* lib/irb/context.rb: fix IRB::Inspector#keys_with_inspector [Bug #7598]
+
+Wed Dec 26 23:26:15 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+
+	* lib/irb/context.rb: IRB::Context#use_readline= has been obsolete
+	  [Bug #6339].
+
+Wed Dec 26 21:32:46 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+
+	* lib/irb/context.rb: make a correct prompt from
+	  IRB.conf[:IRB_NAME] on irb [Bug #6338]. Patched by sho-h.
+
+Wed Dec 26 21:09:19 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+
+	* lib/irb/ext/math-mode.rb: make not able to change math-mode
+	  after irb starting [Bug #6302]. Patched by sho-h.
+
+Wed Dec 26 12:52:36 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+
+	* lib/irb/init.rb: change default debug level for
+	  irb[ruby-dev:46805], [Bug #6301].
+
+Wed Dec 26 11:54:11 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: enable -fPIE when checking -pie for fixing
+	  OpenBSD build error. Patch by George Koehler. Thank you!
+	  [Bug #7606] [ruby-core:51082]
+
+Wed Dec 26 07:31:24 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_enc_cr_str_copy_for_substr): empty string is always
+	  valid or 7bit.
+
+	* string.c (rb_str_enumerate_lines, rb_str_chop): reduce duplicated
+	  code.
+
+	* string.c (rb_str_enumerate_chars): prevent shared copy from GC.
+
+Wed Dec 26 01:31:16 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+
+	* lib/irb/init.rb, lib/irb/context.rb: fix conf.debug_level=
+	  [Bug #6301] and fix irb command option: -- irb_debug_level for irb.
+
+Wed Dec 26 00:59:18 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+
+	* lib/irb/ruby-lex.rb: improve RubyLex performance for large files
+	  [Bug #5202]. Patch by ryanmelt.
+
+Tue Dec 25 22:21:06 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+
+	* lib/irb/output-method.rb: raise right exception when
+	  IRB::OutputMethod#print don't defined [Bug #6657].
+
+Tue Dec 25 22:06:33 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c (rb_threadptr_exec_event_hooks_and_pop_frame):
+	  pop a frame before JUMP_TAG() if exception occurred.
+	  This change fix bug of Ruby 1.9.
+	  [ruby-core:51128] [ruby-trunk - Bug #7624]
+
+	* vm_core.h (EXEC_EVENT_HOOK_AND_POP_FRAME): add to use
+	  `rb_threadptr_exec_event_hooks_and_pop_frame()'.
+
+	* vm.c (vm_exec): use EXEC_EVENT_HOOK_AND_POP_FRAME() while
+	  exception handling. While exception handling, if an exception
+	  is raised in hooks, need to pop current frame and raise this
+	  raised exception by hook.
+
+	* test/ruby/test_settracefunc.rb: add a test.
+
+Tue Dec 25 21:08:53 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+
+	* lib/irb/init.rb, lib/irb/lc/ja/error.rb, lib/irb/lc/error.rb:
+	  raise exception when illegal RC_NAME_GENERATOR defined [Bug #6455].
+
+Tue Dec 25 19:22:17 2012  Keiju Ishitsuka  <keiju@ishitsuka.com>
+
+	* lib/irb/workspace.rb: define method to private on top-level irb
+	  [Bug #5776]. Patch by davidbalbert.
+
+Tue Dec 25 19:09:51 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* bignum.c, include/ruby/intern.h (rb_big_eql): exported.
+
+	* thread.c (recursive_check): object_id maybe a Bignum, not Fixnum on
+	  LLP64.  see also r38493 and r38548.
+	  reported by Heesob Park at [ruby-core:51083] [Bug #7607], and patched
+	  by shirosaki at [ruby-core:51095]
+
+Tue Dec 25 18:53:35 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h, eval_intern.h (CHECK_STACK_OVERFLOW): move
+	  CHECK_STACK_OVERFLOW() to vm_core.h and rename to
+	  CHECK_VM_STACK_OVERFLOW().
+	  This change is only move and rename.
+
+	* tool/instruction.rb: catch up above changes.
+
+	* vm.c, vm_insnhelper.c: ditto.
+
+	* vm_insnhelper.c (vm_stackoverflow): add a function to unify
+	  raising vm stackoverflow exception.
+
+Tue Dec 25 16:16:54 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h (RUBY_VM_THREAD_VM_STACK_SIZE): change default
+	  VM stack size (128 KB or  256 KB -> 512 KB or 1024 KB).
+	  This re-sizing corrects smaller value introduced at r38478.
+	  Newer value is same VM stack size of Ruby 1.9.
+	  [ruby-dev:46797] [ruby-trunk - Bug #7603]
+
+Tue Dec 25 13:38:12 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (compile_err_append, compile_warn_print, warn_print): use
+	  rb_write_error_str() instead of writing to rb_stderr directly.
+
+	* io.c (rb_write_error_str): a stopgap measure not to unblock GVL.
+	  warning from require seems to still have race condition errors.
+
+Tue Dec 25 00:59:29 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* node.h (NODE_OP_CDECL), compile.c (iseq_compile_each),
+	  parse.y (stmt, arg): allow scoped constant op-assignment.
+	  [ruby-core:40154] [Bug #5449]
+
+Mon Dec 24 04:56:48 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http/generic_request.rb (Net::HTTPGenericRequest):
+	  set content-length to zero on empty post requests
+	  by Gregory Ostermayr <gregory.ostermayr@gmail.com>
+	  https://github.com/ruby/ruby/pull/201 fix GH-201
+
+Sun Dec 23 19:09:16 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* thread.c: rename methods:
+	    from Thread.async_interrupt_timing to Thread.handle_interrupt,
+	    from Thread.async_interrupted? to Thread.pending_interrupt?.
+	  Also rename option from `defer' to `never'.
+	  [ruby-core:51074] [ruby-trunk - Feature #6762]
+
+	* vm_core.c, thread.c: rename functions and data structure
+	  `async_errinfo' to `pending_interrupt'.
+
+	* thread.c: add global variables sym_immediate, sym_on_blocking and
+	  sym_never.
+
+	* cont.c, process.c, vm.c, signal.c: ditto.
+
+	* lib/sync.rb, lib/thread.rb: catch up this renaming.
+
+	* test/ruby/test_thread.rb: ditto.
+
+Sun Dec 23 17:57:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/profiler.rb (Profiler__::PROFILE_PROC, print_profile): store
+	  profile data per threads for concurrent-execution.
+	  [ruby-core:22046] [Bug #1152]
+
+	* lib/profiler.rb (Profiler__::Wrapper): support calling singleton
+	  methods of an instance of BasicObject.
+
+	* lib/profiler.rb (Profiler__::PROFILE_PROC): use TracePoint.
+
+Sun Dec 23 16:13:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/erb.rb: typos for ERB::new link
+
+Sun Dec 23 16:06:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/erb.rb: Document ERB::new trim_mode '-' for lines ending in -%>
+	  [ruby-core:51084] [Bug #7608]
+
+Sun Dec 23 15:25:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/irb/ruby-lex.rb: Add handling for %i and %I quoting to irb
+	  Patch by flori [ruby-core:49550] [Bug #7392] [Github Issue #157]
+
+Sun Dec 23 15:05:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (rb_check_funcall_with_hook): rb_check_funcall with hook
+	  which is called before calling method_missing or target method.
+
+	* marshal.c (w_object, r_object0): use rb_check_funcall_with_hook
+	  instead of respond_to? and call.
+
+Sun Dec 23 14:52:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* re.c (rb_reg_eqq): doc: #=== is not a synonym for #=~, added example
+	  [ruby-dev:46746] [Bug #7571]
+
+Sun Dec 23 14:35:13 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread.c (BLOCKING_REGION): if fail_if_interrupted is false ignore
+	  the result of blocking_region_begin(), since it always is true in
+	  that case.  suppress "uninitialized" warnings.
+
+Sun Dec 23 09:34:07 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/commands/check_command.rb:  Added --doctor and --dry-run
+	  options to clean up after failed uninstallation.
+	* test/rubygems/test_gem_commands_check_command.rb:  Test for above.
+
+	* lib/rubygems/commands/push_command.rb:  Allow pushes from RubyGems
+	  2.0.0.preview3
+
+	* lib/rubygems/commands/update_command.rb:  Use Gem.ruby_version
+
+	* lib/rubygems/dependency.rb:  Update style.
+
+	* lib/rubygems/installer.rb:  Ensure installed gem specifications will
+	  be useable.  Refactor.
+	* test/rubygems/test_gem_installer.rb:  ditto.
+
+	* lib/rubygems/validator.rb:  Fixed bug with unreadable files.
+
+	* lib/rubygems.rb:  Fixed broken methods.
+	* test/rubygems/test_gem.rb:  Test for above.
+
+	* test/rubygems/test_gem_commands_push_command.rb:  Fixed overridden
+	  Gem.latest_rubygems_version
+
+Sun Dec 23 01:52:01 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* io.c (rb_io_lines, rb_io_bytes, rb_io_chars, rb_io_codepoints):
+	  Deprecate IO#{lines,bytes,chars,codepoints} and those of ARGF.
+	  [Feature #6670]
+
+	* ext/stringio/stringio.c (strio_lines, strio_bytes, strio_chars)
+	  (strio_codepoints): Deprecate
+	  StringIO#{lines,bytes,chars,codepoints}. [Feature #6670]
+
+	* ext/zlib/zlib.c (rb_gzreader_lines, rb_gzreader_bytes):
+	  Deprecate Zlib::GzipReader#{lines,bytes}. [Feature #6670]
+
+Sat Dec 23 01:35:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/optparse.rb: Documentation for OptionParser to remove 'shadowed
+	  outer local variable' from example and make obvious ARGV with
+	  non-option arguments.
+	  Patch by Marcus Stollsteimer [ruby-core:47460] [Bug #6997]
+
+Sat Dec 23 00:08:00 2012  Kenta Murata  <mrkn@mrkn.jp>
+
+	* include/ruby/intern.h: add the prototype declaration of
+	  rb_num_coerce_bit.
+
+	* numeric.c (rb_num_coerce_bit): the new coerce function for bitwise
+	  binary operation.
+
+	* bignum.c (rb_big_and): use coerce to convert the argument, which isn't
+	  a Fixnum nor a Bignum, to the corresponding Integer object so that
+	  bitwise operations can support Integer-mimic objects.
+	  [Bug #1792] [ruby-core:39491]
+
+	* bignum.c (rb_big_or): ditto.
+
+	* bignum.c (rb_big_xor): ditto.
+
+	* numeric.c (bit_coerce): ditto.
+
+	* numeric.c (fix_and): ditto.
+
+	* numeric.c (fix_or): ditto.
+
+	* numeric.c (fix_xor): ditto.
+
+	* test/ruby/test_integer.rb: add tests for the above changes.
+
+	* test/ruby/test_bignum.rb: ditto.
+
+Sun Dec 23 00:04:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* internal.h (QUOTE, QUOTE_ID): quote unprintable chars in strings and
+	  IDs. [Bug #7574] [ruby-dev:46749]
+
+	* string.c (rb_str_quote_unprintable): ditto.
+
+Sat Dec 22 23:59:18 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (rb_compile_error, rb_compile_warn, rb_compile_warning),
+	  (rb_warn, rb_warning): support PRIsVALUE.
+
+Sat Dec 22 22:04:58 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* cont.c (rb_fiber_start): unify conditions.
+
+Sat Dec 22 21:47:55 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (rb_io_wait_writable): use rb_thread_check_ints() instead
+	  of rb_thread_fd_writable().
+	* io.c (rb_io_wait_readable): ditto.
+
+Sat Dec 22 20:31:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_mod_const_get): symbol cannot be nested constant name.
+
+Sat Dec 22 19:26:35 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_mod_const_get): check more strictly.  [ruby-dev:46748]
+	  [Bug #7573]
+
+Wed Dec 19 02:34:48 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* cont.c (rb_fiber_start): in case of jump with TAG_FATAL,
+	  enqueue error into async_errinfo_queue, because you cannot call
+	  TH_TAG_JUMP() in this function. [ruby-dev:45218]  [Bug #5993]
+
+	* thread.c (rb_threadptr_execute_interrupts): now INT2FIX(TAG_FATAL)
+	  can be popped from async_errinfo_queue.
+
+	* vm.c (rb_vm_make_jump_tag_but_local_jump): revert r38441.
+	  rb_vm_make_jump_tag_but_local_jump() shouldn't return exception
+	  in case of state == TAG_FATAL.
+
+	* test/ruby/test_fiber.rb (test_exit_in_fiber): fix a test to illuminate
+	  Thread.exit should terminate current Thread.
+
+Sat Dec 22 13:15:08 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* gc.c (obj_id_to_ref): add a macro to treat Bignum object id.
+	  This follows the change r38493.
+
+	* gc.c (id2ref): fix for working fine with Bignum object id on x64
+	  Windows.
+	* gc.c (wmap_finalize): ditto.
+
+Sat Dec 22 11:30:21 2012  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* struct.c (make_struct): remove junk ID check to allow members who
+	  have junk name like "foo\000".
+	* test/ruby/test_struct.rb: Test for above.
+	  [Bug #7575] [ruby-dev:46750]
+
+Sat Dec 22 05:34:54 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/http.rb:  Requests may be created with a URI which sets the
+	  Host header.  Responses contain the requested URI for easier redirect
+	  following.  [ruby-trunk - Feature #6482]
+	* lib/net/http/generic_request.rb:  ditto.
+	* lib/net/http/response.rb:  ditto.
+	* NEWS (net/http):  Updated for above.
+	* test/net/http/test_http.rb:  Tests for above.
+	* test/net/http/test_http.rb:  ditto.
+	* test/net/http/test_httpresponse.rb:  ditto.
+
+Sat Dec 22 02:35:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/irb/slex.rb(#match): Typo, should be D_DETAIL
+	  [ruby-core:51071] [Bug#7600]
+
+Sat Dec 22 02:29:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/irb/input-method.rb, lib/irb.rb: Typo in
+	  InputMethod#readable_atfer_eof? to #readable_after_eof?
+	  [ruby-core:51069] [Bug #7599]
+
+Sat Dec 22 02:19:38 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* vm_dump.c (rb_vm_bugreport): revert r38533.
+	* addr2line.c (fill_lines): add ELF sanity check.
+	  [Bug #7597] [ruby-dev:46786]
+
+Sat Dec 22 02:05:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/irb/inspector.rb, lib/irb/context.rb: Move IRB::INSPECTORS and
+	  class methods to IRB::Inspector [ruby-core:51067][Bug #7598]
+
+Sat Dec 22 00:28:46 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* object.c (rb_obj_hash): shouldn't assume object_id can be long.
+	  based on a patch by Heesob Park at [ruby-core:51060].
+	  cf. [Backport #7454]
+
+Fri Dec 21 23:15:25 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* ext/fiddle/lib/fiddle/struct.rb (Fiddle::CStructEntity#set_ctypes):
+	  CPtr -> Pointer.
+	* test/fiddle/test_c_struct_entry.rb
+	  (Fiddle::TestCStructEntity#test_aref_pointer):
+	  Added the test for the above.
+
+Fri Dec 21 23:12:05 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* ext/fiddle/lib/fiddle/struct.rb (Fiddle::CStructEntity#set_ctypes):
+	  CPtr -> Pointer.
+	* test/fiddle/test_c_struct_entry.rb
+	  (Fiddle::TestCStructEntity#test_aref_pointer_array):
+	  Added the test for the above.
+
+Fri Dec 21 22:43:36 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* ext/fiddle/lib/fiddle/import.rb (Fiddle::Importer#sizeof):
+	  CPtr -> Pointer.
+	* test/fiddle/test_import.rb (Fiddle::TestImport#test_sizeof):
+	  Added the test for the above.
+
+Fri Dec 21 22:34:17 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_iseq.rb: disable a test which checks features
+	  removed at r38532.
+
+Fri Dec 21 22:02:00 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/{dir.h,win32.c} (rb_w32_readdir): removed old rb_w32_readdir()
+	  and renamed from rb_w32_readdir_with_enc().
+	  [ruby-core:24864] [Feature #1927]
+
+	* dir.c (READDIR): follow above change.
+
+Fri Dec 21 21:12:54 2012  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* vm_dump.c (rb_vm_bugreport): commentout addr2line call temporarily
+	  in order to avoid segv. anyone can fix addr2line?
+	  [Bug #7597] [ruby-dev:46786]
+
+Fri Dec 21 20:38:28 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* iseq.c (Init_ISeq): remove definition of the following methods:
+	  ISeq#line_trace_all and ISeq#line_trace_specify because they are
+	  half baked.
+	  C APIs are remained as experimental. These functions will be
+	  renamed, removed their parameters may be changed.
+	  You can use these methods by C exts. Please give us your comments.
+
+Fri Dec 21 20:21:04 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c (tracepoint_new): add code to support specified thread.
+	  But not tested and this feature is not supported officially.
+
+Fri Dec 21 19:37:15 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* ruby.c (process_options): need to acquire env from TOPLEVEL_BINDING
+	  each time.
+	  `bind->env' may update after `eval()'.
+	   [Bug #7536]
+
+Fri Dec 21 18:46:50 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/debug.h, vm_core.h: define rb_trace_arg_t at
+	  include/ruby/debug.h (move from vm_core.h).
+
+Fri Dec 21 17:48:15 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h, vm_trace.c: fix multi-threading bug for tracing.
+	  Move `trace_arg' from rb_tp_t::trace_arg to rb_thread_t::trace_arg.
+	  `trace_arg' may changed by multiple threads.
+	  rb_thread_t::trace_arg can represent rb_thread_t::trace_running
+	  (null or non-null) and rb_thread_t::trace_running is removed.
+	  After that, `rb_tp_t' is not needed to check tracing or not
+	  (A running thread knows tracing or not). This is why I remove
+	  tp_attr_check_active() and make new function get_trace_arg().
+
+	  And this modification disable to work the following code:
+	    TracePoint.trace{|tp|
+	      Thread.new{p tp.event} # access `tp' from other threads.
+	    }
+	  I believe nobody mix threads at trace procedure.
+	  This is current limitation.
+	  [Bug #7590]
+
+	* cont.c (fiber_switch, rb_cont_call): use rb_thread_t::trace_arg
+	  instead of rb_thread_t::trace_running.
+
+	* test/ruby/test_settracefunc.rb: add a multi-threading test.
+
+Fri Dec 21 16:38:08 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* template/id.h.tmpl (ID2ATTRSET): compile time constant macro for
+	  ID_ATTRSET.
+
+	* defs/id.def (KeywordError): check duplication.
+
+	* defs/id.def: support for other scope IDs,
+	  ID_{INSTANCE,GLOBAL,CONST,CLASS}.
+
+Fri Dec 21 14:45:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/irb.rb, lib/irb/*: Documentation for IRB
+
+Fri Dec 21 11:31:02 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rake/*:  Updated to rake 0.9.6
+	* doc/rake/*:  ditto
+	* test/rake/*:  ditto
+
+Fri Dec 21 08:56:34 2012  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* vm_trace.c (rb_suppress_tracing): remove unused variable 'vm_tracing'
+
+Fri Dec 21 01:01:45 2012  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* lib/irb/completion.rb (CompletionProc): support completion of
+	  instance variables. [ruby-dev:46710] [Bug #7520]
+
+Thu Dec 20 20:58:25 2012  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* vm_trace.c (rb_suppress_tracing): bugfix for vm->trace_running
+	  counter. And if tracing is already true, vm_trace_running ops is
+	  skipped to control overflow.
+
+Thu Dec 20 18:29:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (RTEST, NIL_P): make bare expressions without
+	  outermost parentheses.
+
+Thu Dec 20 17:29:00 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* NEWS: fix the description for Refinements.
+
+Thu Dec 20 16:53:59 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_core.h (rb_vm_defineclass_type_t),
+	  compile.c (iseq_compile_each), insns.def (defineclass): change the
+	  meaning of the third operand of defineclass as follows:
+	    lower 3bits: the type of the defineclass
+	                   0 = class, 1 = singleton class, 2 = module
+	    4th bit: a flag represents whether the defineclass is scoped
+	               0 = not scoped (e.g., class Foo)
+		       1 = scoped (e.g., class Bar::Baz)
+	    5th bit: a flag represents whether the superclass is specified
+	               0 = not specified (e.g., class Foo)
+	               1 = specified (e.g., class Bar < Foo)
+	  If the superclass is specified and is not a class, a TypeError
+	  should be raised.  [ruby-dev:46747] [Bug #7572]
+
+	* test/ruby/test_class.rb: related test.
+
+Thu Dec 20 16:52:37 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* NEWS: announce AEAD encryption support in the OpenSSL extension.
+
+Thu Dec 20 16:40:13 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* gc.c (nonspecial_obj_id): VALUE is not compatible with Fixnum on
+	  LLP64 platform, such as 64bit Windows.
+	  reported by Heesob Park at [ruby-core:50255] [Bug #7454], and the
+	  fix is suggested by akr.
+
+Thu Dec 20 16:39:04 2012  Martin Bosslet  <Martin.Bosslet@gmail.com>
+
+	* ext/openssl/ossl_cipher.c: fix errors for installations that do not
+	  feature Authenticated Encryption.
+	* ext/openssl/extconf.rb: detect presence of EVP_CTRL_GCM_GET_TAG to
+	  determine whether Authenticated Encryption can be used.
+	  [Feature #6980] [ruby-core:47426]
+
+Thu Dec 20 15:55:46 2012  Martin Bosslet  <Martin.Bosslet@gmail.com>
+
+	* ext/openssl/ossl.c: do not use FIPS_mode_set if not available.
+	* test/openssl/utils.rb: revise comment about setting FIPS mode to
+	  false.
+	* test/openssl/test_fips.rb: remove tests that cause errors on
+	  ruby-ci.
+	  [Feature #6946] [ruby-core:47345]
+
+Thu Dec 20 15:22:59 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/parser/ruby.rb:  Ignore methods defined on constants to
+	  prevent modules with the names of constants from appearing in the
+	  documentation.
+	* test/rdoc/test_rdoc_parser_ruby.rb:  Test for the above.
+
+Thu Dec 20 15:00:33 2012  Martin Bosslet  <Martin.Bosslet@gmail.com>
+
+	* ext/openssl/ossl_cipher.c: add support for Authenticated Encryption
+	  with Associated Data (AEAD) for OpenSSL versions that support the
+	  GCM encryption mode. It's the only mode supported for now by OpenSSL
+	  itself. Add Cipher#authenticated? to detect whether a chosen mode
+	  does support Authenticated Encryption.
+	* test/openssl/test_cipher.rb: add tests for Authenticated Encryption.
+	  [Feature #6980] [ruby-core:47426] Thank you, Stephen Touset for
+	  providing a patch!
+
+Thu Dec 20 12:56:53 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/markup/to_html.rb (class RDoc):  Added current heading and
+	  top links to headings.
+	* lib/rdoc/generator/template/darkfish/rdoc.css:  ditto
+	* test/rdoc/test_rdoc_generator_markup.rb:  Test for above
+	* test/rdoc/test_rdoc_markup_to_html.rb:  ditto
+
+	* test/rdoc/test_rdoc_comment.rb:  Removed trailing whitespace.
+
+Thu Dec 20 11:05:26 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/envutil.rb (assert_valid_syntax): move from
+	  test_syntax.rb.
+
+	* test/ruby/envutil.rb (assert_normal_exit): validate syntax before
+	  running because this assertion passes even if the code fails by
+	  SyntaxError.
+
+Thu Dec 20 10:29:58 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* test/openssl/test_pkey_dh.rb: revert special treatment of
+	  FIPS-capable installations since FIPS mode is now disabled for the
+	  tests.
+
+Thu Dec 20 10:23:12 2012  Martin Bosslet  <Martin.Bosslet@gmail.com>
+
+	* ext/openssl/ossl.c: add OpenSSL.fips_mode= to allow enabling FIPS
+	  mode manually.
+	* test/openssl/utils.rb: turn off FIPS mode for tests. This prevents
+	  OpenSSL installations with FIPS mode enabled by default from raising
+	  FIPS-related errors during the tests.
+	* test/openssl/test_fips.rb: add tests for FIPS-capable OpenSSL
+	  installations.
+	  [Feature #6946] [ruby-core:47345]
+
+Thu Dec 20 06:59:52 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c: support variable VM/Machine stack sizes.
+	  Specified by the following environment variables:
+	    - RUBY_THREAD_VM_STACK_SIZE: vm stack size used at thread creation.
+	      default: 128KB (32bit CPU) or 256KB (64bit CPU).
+	    - RUBY_THREAD_MACHINE_STACK_SIZE: machine stack size used at thread
+	      creation. default: 512KB or 1024KB.
+	    - RUBY_FIBER_VM_STACK_SIZE: vm stack size used at fiber creation.
+	      default: 64KB or 128KB.
+	    - RUBY_FIBER_MACHINE_STACK_SIZE: machine stack size used at fiber
+	      creation. default: 256KB or 256KB.
+	  This values are specified at launched timing. You can not change
+	  these values at running time.
+	  Environ variables are only *hints* because:
+	    - They are aligned to 4KB.
+	    - They have minimum values (depend on OSs).
+	    - Machine stack settings are ignored by some OSs.
+	  Default values especially fiber stack sizes are increased.
+	  This change affect Fiber's behavior:
+	    (1) You can run more complex program on a Fiber.
+	    (2) You can not make many (thousands) Fibers because of
+	        lack of address space (on 32bit CPU).
+	  If (2) bothers you,
+	    (a) Use 64bit CPU with big memory, or
+	    (b) Specify RUBY_FIBER_(VM|MACHINE)_STACK_SIZE correctly.
+	  You need to choose correct stack size carefully. These values
+	  are completely rely on systems (OS/compiler and so on).
+	  [Feature #4614], [Bug #7212]
+
+	* vm_core.h (rb_vm_t::default_params): add to record above settings.
+
+	* vm.c (RubyVM::DEFAULT_PARAMS): add new constant to see
+	  above setting.
+
+	* thread_pthread.c: support RUBY_THREAD_MACHINE_STACK_SIZE.
+
+	* cont.c: support RUBY_FIBER_(VM|MACHINE)_STACK_SIZE.
+
+	* test/ruby/test_fiber.rb: add tests for above.
+
+	* test/ruby/test_thread.rb: ditto.
+
+Thu Dec 20 06:25:44 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_fiber.rb: remove a strange single quote character.
+	  With this character, this script exits by SyntaxError.
+
+Thu Dec 20 01:03:00 2012  Zachary Scott  <zachary@zacharyscott>
+
+	* ext/.document: Add missing ext modules to .document
+	  Patch by Ryunosuke SATO [Fixes Github #224]
+
+Wed Dec 19 23:52:16 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ruby.c (load_file_internal): use original C string as the filename
+	  for parser.
+	  reported by whiteleaf at [ruby-list:49085] [ruby-dev:46738]
+	  [Bug #7562]
+
+Wed Dec 19 23:36:12 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* marshal.c (marshal_dump, marshal_load): fix SEGV during make rdoc
+	  and test failure in TestMarshal#test_gc and test_context_switch
+	  on SPARC Solaris 10 compiled with Oracle Solaris Studio 12.3.
+	  [Bug #7591] [ruby-dev:46772]
+
+Wed Dec 19 19:34:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_mod_const_get): nul byte is invalid as constant name.
+
+Wed Dec 19 17:54:18 2012  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* vm_trace.c (rb_threadptr_exec_event_hooks): get rid of race
+	  condition. [Bug #7589] [ruby-dev:46763]
+
+Wed Dec 19 16:30:28 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/literals.rdoc:  Added 0d decimal format.  Thanks Nobu!
+
+Wed Dec 19 16:19:36 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/methods.rdoc:  Fixed typo.  Thanks to Josh Susser.
+
+Wed Dec 19 16:18:22 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/commands/query_command.rb:  Refactored to improve
+	  maintainability.
+	* test/rubygems/test_gem_commands_query_command.rb:  Note default gems
+	  in gem list details.
+
+	* lib/rubygems/uninstaller.rb:  Detect all gems for uninstallation.
+	  This allows duplicate installs of default gems to be removed.
+	* lib/rubygems/specification.rb:  Allow use of ::each_spec.
+	* lib/rubygems/test_case.rb:  Added install_default_gems.
+	* test/rubygems/test_gem_commands_uninstall_command.rb:  Moved test
+	  down to the uninstaller tests.
+	* test/rubygems/test_gem_uninstaller.rb:  Test for uninstallation of
+	  default gems and duplicate default gems.
+
+Wed Dec 19 15:23:50 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/methods.rdoc:  Add () around keyword arguments example for
+	  consistency.  Thanks to Josh Susser.
+
+Wed Dec 19 01:51:24 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* vm.c (rb_vm_jump_tag_but_local_jump): remove unnecessary 2nd
+	  argument.
+
+	* load.c (rb_load_internal): ditto.
+
+	* eval_intern.h (rb_vm_jump_tag_but_local_jump): ditto.
+
+Tue Dec 18 18:57:58 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (rb_io_wait_writable): don't use rb_thread_wait_fd()
+	  because it is for waiting until io readable.
+
+	* io.c (rb_io_wait_writable): always use rb_thread_fd_writable()
+	  instead of bare rb_wait_for_single_fd(). we shouldn't ignore
+	  return value.
+	* io.c (rb_io_wait_readable): ditto. always use rb_thread_wait_fd().
+
+Tue Dec 18 18:55:33 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_thread_wait_fd_rw): fix infinite loop bug.
+	  rb_wait_for_single_fd() never return positive number.
+
+Tue Dec 18 17:24:40 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/encoding.rb:  Do not remove #! line from document when
+	  setting encoding.  This allows ruby executables to be parsed as ruby
+	  files.
+	* test/rdoc/test_rdoc_encoding.rb:  Test for above.
+
+	* lib/rdoc/parser.rb:  Set the parser file name of ruby executables
+	  correctly.
+	* test/rdoc/test_rdoc_parser.rb:  Test for above.
+
+Tue Dec 18 16:46:15 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/literals.rdoc:  Used simplified heredoc example that
+	  doesn't include method definition.  Added heredoc with backticks.
+
+Tue Dec 18 16:38:51 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/store.rb:  Work around RDoc stores from older versions of
+	  RDoc.
+	* test/rdoc/test_rdoc_store.rb:  Test for above.
+
+Tue Dec 18 16:31:20 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/ruby_lex.rb:  Return a TkHEREDOC instead of a TkSTRING when
+	  the heredoc identifier is followed by a line-end.  This allows proper
+	  display of some HEREDOCs in source view.
+	* lib/rdoc/ruby_token.rb:  Added TkHEREDOC
+	* test/rdoc/test_rdoc_ruby_lex.rb:  Test for above.
+
+Tue Dec 18 09:45:14 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* vm.c (rb_vm_make_jump_tag_but_local_jump): take care of the case
+	  TAG_JUMP() with TAG_FATAL (ex. rb_fatal()). [ruby-core:50917]
+	  [Bug #7570]
+
+	* test/ruby/test_fiber.rb (test_fatal_in_fiber): add a test for above.
+
+	* ext/-test-/fatal/extconf.rb, ext/-test-/fatal/rb_fatal.c: ditto.
+
+Tue Dec 18 13:17:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* vm_trace.c (tracepoint_attr_defined_class): Clean up rdoc for
+	  TracePoint#defined_class
+
+Tue Dec 18 12:15:59 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/specification.rb:  Fixed ruby output of requirements
+	  with multiple version specifiers.
+	* test/rubygems/test_gem_ext_cmake_builder.rb:  Only look for specific
+	  lines in cmake output.  Should fix [ruby-trunk - Bug #7579]
+
+Tue Dec 18 11:45:26 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/literals.rdoc:  Added 0o octal integers.
+
+Tue Dec 18 12:28:52 2012  Martin Bosslet  <Martin.Bosslet@gmail.com>
+
+	* test/openssl/test_ssl.rb: Use :TLSv1_2_client explicitly in
+	  test_tls_v1_2 to prevent upstream bug.
+	  [Bug #7197] [ruby-dev:46240]
+
+Tue Dec 18 11:52:34 2012  Martin Bosslet  <Martin.Bosslet@gmail.com>
+
+	* ext/openssl/lib/ssl.rb: Enable insertion of empty fragments as a
+	  countermeasure for the BEAST attack by default. The default options
+	  of OpenSSL::SSL:SSLContext are now:
+	  OpenSSL::SSL::OP_ALL & ~OpenSSL::SSL::OP_DONT_INSERT_EMPTY_FRAGMENTS
+	  [Bug #5353] [ruby-core:39673]
+
+	* test/openssl/test_ssl.rb: Adapt tests to new SSLContext default.
+
+	* NEWS: Announce the new default.
+
+Tue Dec 18 06:36:12 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* method.h: remove `VM_METHOD_TYPE_CFUNC_FRAMELESS' method type.
+	  This method type is for optimized CFUNC such as Fixnum#+ and so on.
+	  This feature is half-baked and no way to use them.
+	  [Background]
+	  Now, VM has opt_plus instructions to optimize `+' methods for
+	  some Classes (such as Fixnum, Float (flonum)). We call this
+	  type of instructions as `specialized instructions'.
+	  This simple technique improve simple program dramatically.
+	  However, we can make specialized instructions for only several
+	  types (classes) and selectors (method names) because a large
+	  instruction will be slow. In other words, this technique has no
+	  extensibility.
+	  To overcome this problem, VM_METHOD_TYPE_CFUNC_FRAMELESS was
+	  introduced (r37198). This type is a variant of CFUNC, but called
+	  their functions directly without building a method frame.
+	  Any CFUNC method can be defined as frameless methods if a method
+	  is not needed to make method frame. Frameless methods are faster
+	  as specialized instructions (a bit slower, but no need to care).
+	  No problem described at
+	  http://charlie.bz/blog/why-do-singleton-methods-make-ruby-slow
+	  because this technique doesn't see class, but see method body
+	  itself. Alias is also no problem.
+	  [Problem]
+	  However, we can't set frameless method type for polymorphic methods
+	  such as Array#[]. Necessity for method frame depends on which
+	  parameter type. For example, Fixnum#+ needs method frame if
+	  coerce is needed. Current VM_METHOD_TYPE_CFUNC_FRAMELESS is not
+	  flexible and need more tuning to introduce it.
+	  Expected behavior of frameless method type may be:
+	    result = optimized_cfunc(params); /* call optimized cfunc */
+	    if (result == Qundef) { result = normal_cfunc(); }
+	  This is why I say this feature is half-baked.
+	  We need to learn primitive method in Smalltalk more.
+	  (I heard this name at RubyConf Taiwan this month. Thanks!)
+	  [Conclusion]
+	  I remove this feature and consider again.
+	  This feature goes to next minor (2.1?).
+	  Nobody may use this feature and there is no compatibility issue.
+
+	* proc.c (rb_method_entry_arity): ditto.
+
+	* vm_eval.c, vm_insnhelper.c, vm_method.c: ditto.
+
+Tue Dec 18 04:58:22 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c (fill_id_and_klass): TracePoint#defined_class returns
+	  singleton class. `set_trace_func' passed attached class (which is
+	  attached/modified by singleton class) by 6th block parameter if it
+	  is singleton class. Previous behavior follows this spec.
+	  However, this method named `defined_class' should return singleton
+	  class directly because singleton methods are defined in singleton
+	  class. There are no compatible issue because TracePoint is introduced
+	  after 2.0.
+	  But compatibility with `set_trace_func' is broken. This means that
+	  you can not replace all `set_trace_func' code with TracePoint
+	  without consideration of this behavior.
+	  [Bug #7554]
+
+	* test/ruby/test_settracefunc.rb: change a test to catch up
+	  an above change.
+
+Tue Dec 18 03:03:10 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: speed up node mapping so
+	  common cases are evaluated first.  Thanks Kevin Menard!
+
+Tue Dec 18 02:35:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/optparse.rb: Remove 'developer documentation' section from rdoc
+	  Patch by Marcus Stollsteimer [ruby-core:50526][Bug #7504]
+
+Tue Dec 18 02:35:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/matrix.rb (#lup): typo in example [ruby-core:50946][Bug #7582]
+
+Mon Dec 17 18:03:34 2012  Charlie Somerville  <charlie@charliesomerville.com>
+
+	* class.c (rewrite_cref_stack, clone_method): rewrite a method's cref
+	  stack when cloning into a new class to allow lexical const lookup to
+	  work as expected [ruby-core:47834] [Bug #7107]
+	* test/ruby/test_class.rb (class TestClass): related test
+
+Mon Dec 17 13:56:55 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (io_flush_buffer_sync2): avoid to return 0. because
+	  rb_thread_call_without_gvl2 uses 0 internally.
+	* io.c (io_flush_buffer_async2): adapt the above.
+
+Mon Dec 17 12:05:32 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/methods.rdoc:  Added a description of singleton methods.
+
+Mon Dec 17 11:35:57 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/.document:  Added doc/syntax
+
+Mon Dec 17 11:25:32 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax.rdoc:  Added syntax guide table of contents
+	* doc/syntax/exceptions.rdoc:  Syntax guide for exceptions
+	* doc/syntax/literals.rdoc:  Syntax guide for literals
+	* doc/syntax/methods.rdoc:  Syntax guide for methods
+
+Mon Dec 17 07:59:40 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems.rb:  Updated VERSION
+
+	* test/rubygems/test_gem_installer.rb:  Fixed ambiguous first argument
+	  warning.
+
+	* test/rubygems/test_gem_rdoc.rb:  RDoc generation depends on installed
+	  version of RDoc.
+
+Sun Dec 16 02:04:41 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* signal.c (rb_sigaltstack_size): cast sysconf() return value
+	  explicitly. Fix compile error on Mac OS X.
+
+Sun Dec 16 00:39:43 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* cont.c (rb_fiber_start): don't enqueue Qnil to async_errinfo_queue.
+	  rb_vm_make_jump_tag_but_local_jump() could return Qnil (ex. when
+	  finished by Thread.exit). [ruby-dev:45218] [Bug #5993]
+
+	* test/ruby/test_fiber.rb (test_exit_in_fiber): add test for it.
+
+Sat Dec 15 23:56:51 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* ext/fiddle/pointer.c (rb_fiddle_ptr2cptr): fix error message
+	  forgotten to be changed from DL to Fiddle.
+
+Sat Dec 15 23:14:32 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* signal.c (default_handler): remove rb_register_sigaltstack()
+	  call. sigaltstack was already registered when creating threads.
+
+Sat Dec 15 23:08:56 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* signal.c (rb_sigaltstack_size): new. calculate stack size for
+	  sigsegv handler. enlarge value when x86 or x86_64 on Linux.
+	  Linux has very small MINSIGSTKSZ size (2048 bytes) and
+	  our sigsegv routine need 5KiB at least. [Bug #7141]
+	* internal.h: add declaration of rb_sigaltstack_size().
+	* vm_core.h: remove ALT_STACK_SIZE definition.
+
+	* signal.c (rb_register_sigaltstack): replace ALT_STACK_SIZE with
+	  rb_sigaltstack_size();
+	* gc.c (Init_heap): ditto.
+	* vm.c (th_init): ditto.
+
+Sat Dec 15 18:24:21 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* rational.c (f_round_common): should check overflow.
+
+Sat Dec 15 18:00:00 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* rational.c (float_rationalize): reduced.
+
+Sat Dec 15 14:18:44 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (finish_writeconv): uses rb_write_internal2 if
+	  fptr->write_lock have.
+
+Sat Dec 15 13:57:08 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_mutex_owned_p): remove static.
+	* io.c (io_flush_buffer): don't hold mutex if already have.
+	  Now recursive lock may occur when following scenario.
+	  fptr_finalize -> finish_writeconv_sync -> finish_writeconv
+	  -> io_fflush.
+
+Sat Dec 15 13:38:30 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (io_flush_buffer): uses io_flush_buffer_async2 instead of
+	  io_flush_buffer_async.
+	* io.c (io_flush_buffer_async2): new helper function for
+	  io_flush_buffer. It uses rb_thread_call_without_gvl2() instead
+	  of rb_thread_io_blocking_region.
+	* io.c (io_flush_buffer_sync2): new helper function for
+	  io_flush_buffer_async2.
+
+Sat Dec 15 13:04:26 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (internal_write_func2): new helper function for rb_write_internal2().
+	* io.c (rb_write_internal2): new function. it uses
+	  rb_thread_call_without_gvl2() instead of rb_thread_io_blocking_region().
+	* io.c (rb_binwrite_string): uses rb_write_internal2 instead of
+	  rb_write_internal. [Bug #7134]
+
+Sat Dec 15 12:55:29 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (rb_io_wait_writable): add to call rb_thread_wait_fd()
+	  likes rb_io_wait_readable.
+
+Sat Dec 15 11:54:50 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (rb_io_wait_writable): don't call rb_thread_fd_writable()
+	  when EINTR. EINTR mean signal interrupt was happen. We don't
+	  need any wait.
+
+Sat Dec 15 11:53:36 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_thread_wait_fd_rw): remove silly rb_thread_alone()
+	  check.
+
+Sat Dec 15 10:22:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread.c (rb_thread_polling): revert but deprecate.
+
+	* include/ruby/intern.h (rb_thread_polling): deprecate.
+
+Sat Dec 15 08:37:01 2012  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* test/rubygems/test_gem_ext_cmake_builder.rb (test_self_build):
+	  get rid of false positive.
+
+Sat Dec 15 08:05:56 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/ruby/test_thread.rb (test_uninitialized, test_backtrace,
+	test_thread_timer_and_interrupt, test_thread_join_in_trap,
+	test_thread_join_current, test_thread_join_main_thread,
+	test_main_thread_status_at_exit, test_thread_status_in_trap,
+	test_thread_status_raise_after_kill, test_mutex_owned,
+	test_mutex_owned2): move these tests from TestThreadGroup class
+	  to TestThread because they are not thread group tests.
+
+	* test/ruby/test_thread.rb (test_thread_status_raise_after_kill):
+	  add t.join.
+
+	* test/ruby/test_threadgroup.rb: new file. moved ThreadGroup test
+	  from test_thread.rb.
+
+Sat Dec 15 08:02:11 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/ruby/test_thread.rb (TestThread::Thread::new.): remove
+	  th.abort_on_exception change. Test template shouldn't change
+	  global flag. It prevent to test a normal case.
+
+Sat Dec 15 06:15:14 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* configure.in (HAVE_GCC_ATOMIC_BUILTINS):  Set -march=i486 to enable
+	  __sync_val_compare_and_swap.  Patch by KOSAKI Motohiro.
+	  [ruby-trunk - Bug #7485]
+
+Sat Dec 15 03:42:34 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* ext/.document: add fiddle/pointer.c, fiddle/handle.c, and
+	  fiddle/win32/lib as documentation.
+
+Sat Dec 15 03:06:40 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* file.c (rb_file_flock): use rb_thread_wait_for() instead of
+	  rb_thread_polling(). When getting EAGAIN, we need to wait a
+	  while even if no multi threading.
+	* thread.c (sleep_for_polling, rb_thread_polling) removed.
+
+Sat Dec 15 00:03:31 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* signal.c (rb_f_kill): remove rb_thread_polling() because this
+	  has no good effect and makes meaningless 100ms delay. 1)
+	  when sending signal to another process, waiting has just silly.
+	  2) when sending signal to current process, 100ms is often not
+	  enough time to wait. It depend on kernel behavior. And,
+	  rb_thread_polling() doesn't make sense anyway. When rb_thread_alone()
+	  is true, it doesn't wait at all and Process.kill() users don't
+	  expect threading changes Process.kill() behavior. [Bug #7560]
+
+Fri Dec 14 17:10:57 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_params): parser_tokline to track the line number at
+	  which token started.  [ruby-dev:46737] [Bug #7559]
+
+	* parse.y (fcall): operation with starting line number.
+
+	* parse.y (command, primary, method_call): point method name line.
+
+	* parse.y (gettable_gen): return token line for __LINE__.
+
+Fri Dec 14 16:56:59 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_call_super_method): remove volatile introduced
+	  in r38365.
+
+	* vm_insnhelper.c (vm_call_method): use __forceinline to prevent
+	  VC++ to make vm_call_general and vm_call_super_method as the same
+	  method.  Thanks, Heesob Park.  [Bug #7556] [ruby-core:50867]
+
+Fri Dec 14 14:59:14 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/envutil.rb (Test::Unit::Assertions#assert_separately):
+	  take file and line by using caller_locations if not given.
+
+	* test/ruby/envutil.rb (Test::Unit::Assertions#assert_separately):
+	  count assertions in separated tests.
+
+Fri Dec 14 14:16:42 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/rubygems_hook.rb:  Fixed generation of documentation.
+	  Disabled rdoc generation by default to match RubyGems defaults.
+	  Reduced diff with RubyGems::RDoc.
+	* test/rdoc/test_rdoc_rubygems_hook.rb:  Tests for the above.
+	* test/rubygems/test_gem_rdoc.rb:  ditto.
+
+	* lib/rdoc/store.rb:  Removed useless variable assignment
+
+Fri Dec 14 13:58:40 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/commands/rdoc_command.rb:  When overwriting
+	  documentation, remove existing documentation first.
+
+	* lib/rubygems/server.rb:  Fixed documentation links.
+	* test/rubygems/test_gem_server.rb:  Test for the above.
+
+	* lib/rubygems/rdoc.rb:  Reduced diff with RDoc::RubyGemsHook
+	* test/rubygems/test_gem_rdoc.rb:  ditto
+
+Fri Dec 14 04:08:05 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* test/ruby/envutil.rb (Test::Unit::Assertions#assert_separately):
+	  added to execute given test source on separate process,
+	  catch its resulted exception and raise it on main process.
+
+Fri Dec 14 07:43:44 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: quote strings that begin
+	  with non-word characters.  Thanks Alex Tambellini!
+	* test/psych/test_yaml.rb: appropriate test case
+
+Thu Dec 13 23:14:17 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_call_super_method): a workaround for the
+	  failure of TestRefinement#test_refine_recursion in Windows.
+	  See [ruby-core:50871] for details.
+
+Thu Dec 13 23:10:52  Charlie Somerville  <charlie@charliesomerville.com>
+
+	* object.c (Init_Object): use rb_mod_init_copy for Class#initialize_copy
+	* class.c (rb_class_init_copy): rename to class_init_copy_check, performs type
+	  checks on arguments to prevent reinitialization of initialized class
+	  [ruby-core:50869] [Bug #7557]
+	* class.c (rb_mod_init_copy): use class_init_copy_check if receiver is T_CLASS
+	* test/ruby/test_class.rb (class TestClass): related test
+
+Thu Dec 13 16:53:10 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/class_module.rb:  Fixed duplicate comments for classes and
+	  modules from C.
+	* test/rdoc/test_rdoc_class_module.rb:  Test for the above.
+
+	* lib/rdoc/parser/c.rb:  Reload C variable names to allow proper
+	  updates of an ri store for C files.
+	* lib/rdoc/rdoc.rb:  ditto.
+	* lib/rdoc/store.rb:  ditto.
+	* test/rdoc/test_rdoc_parser_c.rb:  Test for the above.
+	* test/rdoc/test_rdoc_store.rb:  ditto.
+
+Thu Dec 13 14:20:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/irb*: merge doc from doc/irb/ird.rd and improve overall
+	  documentation of IRB
+	* doc/irb/irb.rd: remove stale documentation
+
+Thu Dec 13 14:10:00 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* marshal.c (r_entry0): don't taint classes and modules because
+	  Marshal.load just returns the dumped classes and modules.
+	  [Bug #7325] [ruby-core:49198]
+
+	* test/ruby/test_marshal.rb: related test.
+
+Thu Dec 13 14:10:13 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_require.rb (TestRequire#test_loaded_features_encoding):
+	  need to check compatibility, not equality of encodings.
+
+Thu Dec 13 14:02:15 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* file.c (rb_file_join): check encoding compatibility before joining
+	  strings.
+
+Thu Dec 13 13:06:27 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (umethod_bind): allow another form of method transplanting
+	  from a module via UnboundMethod.  [ruby-core:34267][Feature #4254]
+
+Thu Dec 13 12:07:25 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* include/ruby/ruby.h (RB_UNUSED_VAR): new macro to suppress
+	  warnings for unused variables.
+
+	* ext/bigdecimal/bigdecimal.c (ENTER): use RB_UNUSED_VAR() to
+	  suppress annoying warnings by -Wunused-but-set-variable in gcc 4.6.
+
+Thu Dec 13 11:22:33 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* method.h: remove "VM_METHOD_TYPE__MAX" from rb_method_type_t.
+	  rb_method_type_t is not a number and "_MAX" causes misunderstanding.
+
+	* proc.c (rb_method_entry_arity): ditto.
+
+	* vm_eval.c (vm_call0_body): ditto.
+
+	* vm_insnhelper.c (vm_call_method): ditto.
+
+Wed Dec 12 21:40:45 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/tmpdir.rb (Dir::Tmpname#create): deal with a prefix name which
+	  starts with tilde as a plain name, not expanding as home directory.
+	  [ruby-core:50793] [Bug #7547]
+
+Wed Dec 12 19:48:59 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/json: merge JSON 1.7.5.
+	  fix tests and other fixes.
+
+Wed Dec 12 18:30:29 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* class.c (rb_prepend_module): move refined methods from the origin
+	  of a class to the class, because refinements should have priority
+	  over prepended modules.
+
+	* test/ruby/test_refinement.rb: related test.
+
+Wed Dec 12 18:27:09 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* time.c (zone_str): lookup or insert by using st_update() at once.
+
+Wed Dec 12 15:30:11 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: add -fno-omit-frame-pointer if libexecinfo is used.
+	  At least on FreeBSD ruby will crash on getting C backtrace
+	  when it is compiled with other than -O0.
+
+	* vm_dump.c: enable backtrace on FreeBSD even if with optimizations.
+
+Wed Dec 12 16:08:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/rdoc/test_rdoc_rdoc.rb (TestRDocRDoc#test_normalized_file_list_non_file_directory):
+	  use File::NULL for portability if possible.
+
+Wed Dec 12 16:07:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* method.h (rb_method_flag_t): name a magic number for NOEX_SAFE and
+	  NOEX_WITH as NOEX_SAFE_SHIFT_OFFSET.
+
+	* method.h (rb_method_type_t, method_optimized_type): C89 forbids a
+	  comma after the last element in enum.
+
+	* proc.c (rb_method_entry_arity), vm_eval.c (vm_call0_body),
+	  vm_insnhelper.c (vm_call_method): add VM_METHOD_TYPE__MAX case.
+
+Wed Dec 12 14:16:35 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/class_module.rb:  Added RDoc::ClassModule#documented? which
+	  checks comment_location.  Hide RDoc::ClassModule#comment=.
+	* test/rdoc/test_rdoc_class_module.rb:  Test for above.
+
+	* lib/rdoc/generator/template/darkfish/_sidebar_table_of_contents.rhtml:
+	  Fix display of the table of contents in the sidebar.
+
+	* lib/rdoc/generator/template/darkfish/table_of_contents.rhtml:
+	  Use #comment_location when displaying classes or modules.
+
+	* test/rdoc/test_rdoc_store.rb:  Use comment_location.
+
+Wed Dec 12 13:40:52 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_getivar): no uninitialized instance variables
+	  warnings for non-object if attr method.
+
+Wed Dec 12 06:43:37 2012  Benoit Daloze  <eregontp@gmail.com>
+
+	* iseq.c (rb_iseq_parameters): fix limit for optional arguments.
+
+	* test/ruby/test_keyword.rb: tests for above.
+
+	* vm_core.h (struct rb_iseq_struct): update documentation
+	  with keyword arguments. [Bug #7540] [ruby-core:50735]
+
+Wed Dec 12 03:45:41 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm.c (vm_exec): pass exceptions while handling an exception.
+
+	* vm_trace.c (rb_threadptr_exec_event_hooks): propagate exceptions.
+	  revert r38293 partially.
+
+Wed Dec 12 03:09:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* sample/test.rb (Progress#initialize): add --verbose option and show
+	  messages in one line unless --verbose is given.
+
+Wed Dec 12 01:47:02 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (rb_using_refinement): make the method table of an iclass
+	  for a refinement that of the refinement, not that of the origin of
+	  the refinement, which is set by rb_include_class_new().  This
+	  change is needed to make module prepend into a refinement work
+	  properly.
+
+	* test/ruby/test_refinement.rb: related test.
+
+Wed Dec 12 01:05:04 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/make-snapshot: add --disable-rubygem to both MINIRUBY and RUBY.
+	  On making miniprelude.c, it seems use MINIRUBY. this fixes #7541
+	  but rubygems also needs to be fixed for older rubies.
+
+Wed Dec 12 00:32:11 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* test/dl/test_func.rb (test_name_with_block, test_bind, test_qsort1):
+	  call unbind to release the callback closure because maximum number
+	  of callbacks is limited to DL::MAX_CALLBACK (== 5) with pure DL
+	  without Fiddle.
+
+Wed Dec 12 00:13:34 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* ext/dl/lib/dl/func.rb (DL::Function#unbind, #bound?): suppress
+	  NoMethodError when Fiddle is available. [ruby-core:50756] [Bug #7543]
+	* test/dl/test_func.rb (test_bound*, test_unbind*): tests for the above.
+
+Tue Dec 11 19:38:37 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* ext/fiddle/function.c (Fiddle::Function.new): new keyword argument
+	  :name to set the name attribute.
+	* ext/fiddle/lib/fiddle/import.rb (import_function, bind_function):
+	  set function name by using the :name keyword argument.
+	  Re-fixes r38243. [ruby-core:50566]
+	* test/fiddle/test_function.rb (test_name): test for the :name keyword
+	  argument and Fiddle::Function#name.
+
+Tue Dec 11 16:57:33 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* common.mk:  Added --pages-dir to rdoc creation.  Now doc/ items show
+	  up at top-level.
+	* .document:  Moved doc/* entries to doc/.document
+	* doc/.document:  ditto
+
+Tue Dec 11 16:44:37 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/options.rb:  Added --page-dir option for moving pages in
+	  doc/ to the top-level.
+	* lib/rdoc/rdoc.rb:  ditto.
+	* test/rdoc/test_rdoc_options.rb:  Test for the above.
+	* test/rdoc/test_rdoc_rdoc.rb:  ditto.
+
+Tue Dec 11 15:24:05 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/pathname/lib/pathname.rb:  Hide private methods from RDoc.
+
+Tue Dec 11 15:11:29 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/make-snapshot (BASERUBY): add --disable-gem to avoid load gems.
+	  [Bug #7541] [ruby-core:50736]
+
+Tue Dec 11 12:00:19 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/dl/win32/extconf.rb: Fix typo
+	  by Santiago Pastorino <santiago@wyeworks.com>
+	  https://github.com/ruby/ruby/pull/221 fix GH-221
+
+Tue Dec 11 01:53:37 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix: alias {row|column}_size to {row|column}_count and use
+	  the latter.
+	  [Bug #7369] [ruby-core:49409]
+
+Tue Dec 11 00:26:58 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* fix the behavior when a module is included into a refinement.
+	  This change is a little tricky, so it might be better to prohibit
+	  module inclusion to refinements.
+
+	* include/ruby/ruby.h (RMODULE_INCLUDED_INTO_REFINEMENT): new flag
+	  to represent that a module (iclass) is included into a refinement.
+
+	* class.c (include_modules_at): set RMODULE_INCLUDED_INTO_REFINEMENT
+	  if klass is a refinement.
+
+	* eval.c (rb_mod_refine): set the superclass of a refinement to the
+	  refined class for super.
+
+	* eval.c (rb_using_refinement): skip the above superclass (the
+	  refined class) when creating iclasses for refinements.  Otherwise,
+	  `using Refinement1; using Refinement2' creates iclasses:
+	  <Refinement2> -> <RefinedClass> -> <Refinement1> -> RefinedClass,
+	  where <Module> is an iclass for Module, so RefinedClass is
+	  searched before Refinement1.  The correct iclasses should be
+	  <Refinement2> -> <Refinement1> -> RefinedClass.
+
+	* vm_insnhelper.c (vm_search_normal_superclass): if klass is an
+	  iclass for a refinement, use the refinement's superclass instead
+	  of the iclass's superclass.  Otherwise, multiple refinements are
+	  searched by super.  For example, if a refinement Refinement2
+	  includes a module M (i.e., Refinement2 -> <M> -> RefinedClass,
+	  and if refinements iclasses are <Refinement2> -> <M>' ->
+	  <Refinement1> -> RefinedClass, then super in <Refinement2> should
+	  use Refinement2's superclass <M> instead of <Refinement2>'s
+	  superclass <M>'.
+
+	* vm_insnhelper.c (vm_search_super_method): do not raise a
+	  NotImplementError if current_defined_class is a module included
+	  into a refinement.  Because of the change of
+	  vm_search_normal_superclass(), the receiver might not be an
+	  instance of the module('s iclass).
+
+	* test/ruby/test_refinement.rb: related test.
+
+Mon Dec 10 18:35:25 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_method.c (rb_method_entry_without_refinements): use
+	  rb_resolve_refined_method() to search superclasses if
+	  me->def->orig_me is 0.  This change fixes make test-all
+	  TESTS="json ruby/test_refinement.rb".
+
+	* test/ruby/test_refinement.rb: related test.
+
+Mon Dec 10 17:59:07 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/fiddle/win32/*: library ports from DL to Fiddle.
+
+	* ext/dl/win32/extconf.rb: check fiddle.  often case dl compiled prior
+	  to fiddle, so this change is no meaning.  in most cases, simply
+	  fiddle/win32 overwrite dl/win32.
+
+Mon Dec 10 15:23:35 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_trace.c (rb_threadptr_exec_event_hooks): exceptions in event
+	  hooks should not propagate outside.
+
+Mon Dec 10 15:11:06 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_compile_each): count flip-flop state in local iseq
+	  not in each iseqs, so that the keys can be other than hidden
+	  strings.  [ruby-core:47253] [Bug #6899]
+
+	* vm_insnhelper.c (lep_svar_get, lep_svar_set, vm_getspecial): store
+	  flip-flop states in an array instead of a hash.
+
+	* iseq.c (set_relation): main iseq also can has local scope.
+
+Mon Dec 10 10:36:12 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* lib/irb/magic-file.rb: set a encoding, which is detected from
+	  the file to read, to the internal encoding.
+	  [Bug #4281][ruby-dev:43036]
+
+Mon Dec 10 09:40:19 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/ext/cmake_builder.rb:  Added a builder for cmake.
+	* lib/rubygems/ext.rb:  ditto.
+	* lib/rubygems/installer.rb:  ditto.
+	* test/rubygems/test_gem_ext_cmake_builder.rb:  Test for above.
+
+Mon Dec 10 09:13:08 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/package.rb:  Omit directories when packaging gems like
+	  RubyGems 1.8.x
+	* test/rubygems/test_gem_package.rb:  Test for above.
+
+Sun Dec  9 17:36:59 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_call_opt_send): Kernel#send should not use
+	  refinements.
+
+	* proc.c (mnew): Kernel#method, Kernel#public_method,
+	  Module#instance_method, and Module#public_instance_method should
+	  not use refinements.
+
+	* vm_method.c (rb_method_boundp): Kernel#respond_to? should not use
+	  refinements.
+
+	* test/ruby/test_refinement.rb: related test.
+
+Sun Dec  9 06:19:04 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/markdown/entities.rb:  Added documentation.
+
+	* lib/rdoc/parser/ruby.rb:  Updated style
+
+	* lib/rdoc/ruby_lex.rb:  Parse characters up to \u{FFFFF}
+	* test/rdoc/test_rdoc_ruby_lex.rb:  Test for above.
+
+Sat Dec  8 22:38:35 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (rb_mod_refine): don't override Module#include.  It's
+	  unnecessary now because refinements are activated only in refine
+	  blocks.
+
+Sat Dec  8 22:33:26 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c: remove Module#refinements.
+
+	* test/ruby/test_refinement.rb: remove tests for Module#refinements.
+
+Sat Dec  8 13:17:55 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (top_using): raise a RuntimeError if using is called in a
+	  module definition or a method definition.
+
+	* test/ruby/test_refinement.rb: related test.
+
+Sat Dec  8 15:01:35 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/commands/cleanup_command.rb:  Skip default gems when
+	  cleaning up.
+	* test/rubygems/test_gem_commands_cleanup_command.rb:  Test for above.
+
+	* lib/rubygems/commands/query_command.rb:  Fixed listing remote gems.
+
+	* lib/rubygems/dependency_installer.rb:  Ignore non-files when looking
+	  for local gems.
+	* test/rubygems/test_gem_dependency_installer.rb:  Test for above.
+
+	* lib/rubygems/uninstaller.rb:  The user must confirm uninstalling gems
+	  that have dependencies.
+	* test/rubygems/test_gem_uninstaller.rb:  Test for above.
+
+	* lib/rubygems.rb (module Gem):  Updated version.
+
+	* test/rubygems/*.pem:  Updated to run in FIPS mode.
+	* test/rubygems/test_gem_security.rb:  ditto.
+	* test/rubygems/test_gem_security_signer.rb:  ditto.
+
+Sat Dec  8 12:34:01 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_search_normal_superclass): super in a
+	  refinement always uses the refined class as its superclass.
+
+	* test/ruby/test_refinement.rb: related test.
+
+Sat Dec  8 11:59:59 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (rb_mod_refine): raise an ArgumentError if a given
+	  block is of a Proc object.
+
+	* vm_insnhelper.c (vm_call_method): store refined methods in inline
+	  cache to improve performance.  It's safe now because blocks cannot
+	  be yielded with different refinements in the new specification.
+
+	* test/ruby/test_refinement.rb: related test.
+
+Sat Dec  8 11:17:53 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (rb_mod_refine), vm_eval.c (rb_yield_refine_block):
+	  Module#refine activates all refinements defined in that module
+	  only in a given block.
+
+	* string.c (sym_to_proc, sym_call): don't use refinements.
+
+	* test/ruby/test_refinement.rb: related test.
+
+Sat Dec  8 09:24:42 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/openssl/ossl_x509name.c:  Completed documentation for
+	  OpenSSL::X509::Name.
+
+Sat Dec  8 07:57:12 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/objspace.c (iow_size): return size of internal object
+	  for ObjectSpace.memsize_of().
+
+	* test/objspace/test_objspace.rb: add a test.
+
+Tue Dec 08 02:39:23 2012  James Edward Gray II  <james@graysoftinc.com>
+
+	* lib/csv.rb: A fix for row comparison by Stephen Wattam.  [Bug #7528]
+
+Sat Dec  8 01:27:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit.rb (Test::Unit::Runner#_run_parallel): no need to
+	  check all reports.
+
+Sat Dec  8 00:10:34 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_eval.c (yield_under, eval_under): do not activate refinements
+	  of the receiver in module_eval and instance_eval.
+
+	* eval.c (ruby_Init_refinement): undef Class#refine.
+
+	* eval.c (ruby_Init_refinement): remove Module#using.
+
+	* eval.c (ruby_Init_refinement): main.using should be private.
+
+	* eval.c (rb_mod_refine): the argument of Module#refine should not
+	  be a module.
+
+	* insns.def (defineclass): do not activate refinements in a class or
+	  module.
+
+Fri Dec  7 23:42:11 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* ext/refinement/refinement.c: include ruby/ruby.h instead of the
+	  declaration of rb_warn().
+
+Fri Dec  7 16:07:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* doc/etc.rd: Removed stale documentation file
+	* ext/etc/etc.c:  Merged documentation from doc/etc.rd and updated
+	  rdoc, added documentation for Etc::Passwd and Etc::Group
+
+Fri Dec  7 16:00:57 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/test/unit.rb (Test::Unit::Runner#_run_parallel): no need to
+	  retry skipped test.  this fix makes 40% faster the whole test-all
+	  with -j5 on Windows.
+
+Fri Dec  7 14:22:29 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/markup/to_joined_paragraph.rb:  Completed documentation
+	* lib/rdoc/parser/c.rb:  ditto
+	* lib/rdoc/parser/changelog.rb:  ditto
+	* lib/rdoc/servlet.rb:  ditto
+	* lib/rdoc/store.rb:  ditto
+
+	* lib/rdoc/store.rb:  Improved HTML error page.  Completed
+	  documentation
+
+	* lib/rdoc/parser/ruby.rb:  Fixed bug attaching a comment to A::B = 42
+	* test/rdoc/test_rdoc_parser_ruby.rb:  Test for above
+
+	* test/rdoc/test_rdoc_comment.rb:  Removed garbage
+
+Fri Dec  7 14:03:59 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/timeout.rb (Timeout#timeout): since async_interrupt_timing
+	  re-raises a deferred exception, replace the timeout exception with
+	  Timeout::Error after it.  [Bug #7503]
+
+Fri Dec  7 13:07:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* doc/forwardable.rd: Remove stale documentation file
+	* lib/forwardable.rb: Merge documentation from doc/forwardable.rd
+
+Fri Dec  7 09:47:35 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* time.c (time_mdump): dump timezone string to private instance variable
+	  on marshaling.
+
+	* time.c (time_mload): load timezone string from private instance
+	  variable named 'zone'.
+
+Fri Dec  7 01:15:07 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* ext/fiddle/lib/fiddle/function.rb (Fiddle::Function#name): new
+	  attribute needed to switch Win32::Registry from DL to Fiddle.
+
+	* ext/fiddle/lib/fiddle/import.rb (import_function, bind_function):
+	  set function name to the returned Fiddle::Function object.
+
+Fri Dec  7 00:11:44 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* test/ruby/test_refinement.rb: fix some tests to use neither
+	  Module#using nor Module#module_eval.
+
+Thu Dec  6 23:27:50 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (ruby_Init_refinement): a new function to enable
+	  Refinements with a warning "Refinements are experimental...".
+
+	* ext/refinement/refinement.c, ext/refinement/extconf.rb: a new
+	  extension library to enable Refinements.
+
+Thu Dec  6 18:23:05 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* revised r37993 to avoid SEGV/ILL in tests.  In r37993, a method
+	  entry with VM_METHOD_TYPE_REFINED holds only the original method
+	  definition, so ci->me is set to a method entry allocated in the
+	  stack, and it causes SEGV/ILL.  In this commit, a method entry
+	  with VM_METHOD_TYPE_REFINED holds the whole original method entry.
+	  Furthermore, rb_thread_mark() is changed to mark cfp->klass to
+	  avoid GC for iclasses created by copy_refinement_iclass().
+
+	* vm_method.c (rb_method_entry_make): add a method entry with
+	  VM_METHOD_TYPE_REFINED to the class refined by the refinement if
+	  the target module is a refinement.  When a method entry with
+	  VM_METHOD_TYPE_UNDEF is invoked by vm_call_method(), a method with
+	  the same name is searched in refinements.  If such a method is
+	  found, the method is invoked.  Otherwise, the original method in
+	  the refined class (rb_method_definition_t::body.orig_me) is
+	  invoked.  This change is made to simplify the normal method lookup
+	  and to improve the performance of normal method calls.
+
+	* vm_method.c (EXPR1, search_method, rb_method_entry),
+	  vm_eval.c (rb_call0, rb_search_method_entry): do not use
+	  refinements for method lookup.
+
+	* vm_insnhelper.c (vm_call_method): search methods in refinements if
+	  ci->me is VM_METHOD_TYPE_REFINED.  If the method is called by
+	  super (i.e., ci->call == vm_call_super_method), skip the same
+	  method entry as the current method to avoid infinite call of the
+	  same method.
+
+	* class.c (include_modules_at): add a refined method entry for each
+	  method defined in a module included in a refinement.
+
+	* class.c (rb_prepend_module): set an empty table to
+	  RCLASS_M_TBL(klass) to add refined method entries, because
+	  refinements should have priority over prepended modules.
+
+	* proc.c (mnew): use rb_method_entry_with_refinements() to get
+	  a refined method.
+
+	* vm.c (rb_thread_mark): mark cfp->klass for iclasses created by
+	  copy_refinement_iclass().
+
+	* vm.c (Init_VM), cont.c (fiber_init): initialize th->cfp->klass.
+
+	* test/ruby/test_refinement.rb (test_inline_method_cache): do not skip
+	  the test because it should pass successfully.
+
+	* test/ruby/test_refinement.rb (test_redefine_refined_method): new
+	  test for the case a refined method is redefined.
+
+Thu Dec  6 17:29:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_here_document): flush string content between new
+	  line and :string_embexpr.  [ruby-core:48703] [Bug #7255]
+
+Thu Dec  6 16:35:21 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* test/rake/helper.rb:  Load envutil correctly.  Removed useless rescue
+	  for signal propagation tests
+	* lib/rake/file_utils.rb:  Prefer the built ruby.
+	* test/rake/test_rake_functional.rb:  ditto
+
+Thu Dec  6 15:20:34 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/context.rb:  Don't warn for duplicate methods while loading.
+	* test/rdoc/test_rdoc_context.rb:  Test for above.
+
+Thu Dec  6 14:26:22 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/command_manager.rb:  Removed string concatenation
+	  syntax.  [Bug #6265]
+	* lib/rubygems/commands/install_command.rb:  ditto
+	* lib/rubygems/commands/uninstall_command.rb:  ditto
+	* lib/rubygems/indexer.rb:  ditto
+	* lib/rubygems/security/policy.rb:  ditto
+	* lib/rubygems/security.rb:  ditto
+	* lib/rubygems/uninstaller.rb:  ditto
+	* test/rubygems/test_gem_commands_cert_command.rb:  ditto
+	* test/rubygems/test_gem_package.rb:  ditto
+	* test/rubygems/test_gem_security.rb:  ditto
+	* test/rubygems/test_gem_security_policy.rb:  ditto
+
+Thu Dec  6 14:10:08 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/package.rb:  Set rubygems_version before validation.
+	  Fixes issue with bundler.
+	* test/rubygems/test_gem_package.rb:  Test for above.
+
+	* lib/rubygems/remote_fetcher.rb:  Only update the cache when we have
+	  permission.  [ruby-trunk - Bug #7509]
+	* lib/rubygems/source.rb (class Gem):  ditto
+	* test/rubygems/test_gem_remote_fetcher.rb:  Test for above.
+	* lib/rubygems/test_utilities.rb:  ditto
+
+	* lib/rubygems/specification.rb:  Derive base_dir properly for default
+	  gems.  [ruby-trunk - Bug #7496]
+	* test/rubygems/test_gem_specification.rb:  Test for above.
+
+	* lib/rubygems.rb:  Untaint Dir.pwd when searching for gemdeps files
+	  for operation under $SAFE=1
+
+Thu Dec 06 12:07:11 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c: TracePoint#enable should not cause an error
+	  when it is already enabled. TracePoint#disable is too.
+	  [ruby-core:50561] [ruby-trunk - Bug #7513]
+
+	* test/ruby/test_settracefunc.rb: add tests.
+
+Thu Dec  6 07:19:58 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc*:  Improved display of ChangeLog files as HTML.
+	* test/rdoc*:  Test for above.
+
+Thu Dec  6 04:34:19 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_uninterruptible): helper function for providing
+	  temporary async_interrupt_timing(Object => :defer)
+
+	* io.c (rb_f_p): use rb_uninterruptible.
+	* io.c (rb_f_p_internal): helper function for rb_f_p().
+	* io.c (struct rb_f_p_arg): new struct for rb_f_p_internal.
+
+	* test/ruby/test_thread.rb (test_async_interrupt_and_p): test for
+	  the above.
+
+Thu Dec  6 04:27:10 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (io_binwrite): check interrupt before io issue.
+	* test/ruby/test_thread.rb (test_async_interrupt_and_io):
+	  test for the above.
+
+Thu Dec  6 01:10:36 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (rb_method_call_status): use Qundef as no self instead of
+	  the current self.
+
+	* vm_eval.c (send_internal): public_send does not consider how it is
+	  called, as mentioned in r14173.  patched by charliesome (Charlie
+	  Somerville).  [ruby-core:50489] [Bug #7499]
+
+Wed Dec  5 23:50:23 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (getrusage_time): uses clock_gettime() with
+	  CLOCK_PROCESS_CPUTIME_ID when available, which provides a 1ns
+	  precision on linux. [ruby-core:50495] [Bug #7500]
+	  patched by Aman Gupta.
+
+Wed Dec  5 22:46:02 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm.c (rb_vm_make_proc): save the proc made from the given block so
+	  that it will not get collected.  [ruby-core:50545] [Bug #7507]
+
+Wed Dec  5 22:13:57 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* ext/dl/lib/dl/func.rb (DL::Function#bind): When Fiddle is used,
+	  @ptr should be updated. This fixes SEGV raised in DL::Function#call
+	  after calling DL::Function#bind. [Bug #7516] [ruby-dev:46708]
+
+	* test/dl/test_func.rb (test_bind): test for the above
+
+Wed Dec  5 18:53:00 2012  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* thread.c (rb_thread_s_async_interrupt_timing): have to check ints
+	  before jumping out.
+	* test/ruby/test_thread.rb (test_async_interrupt_with_return): add test
+	  rescue has to catch a queued async exception at the time of return.
+	* test/ruby/test_thread.rb (test_async_interrupt_with_break): add test
+	  rescue has to catch a queued async exception at the time of break.
+
+Wed Dec  5 16:54:28 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/memory_status.rb: suppress warning.
+	  A patch from NAKAMURA Usaku.
+
+Wed Dec  5 16:06:54 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/parser/changelog.rb:  Parse more ChangeLog file variations.
+	* test/rdoc/test_rdoc_parser_changelog.rb:  Test for above.
+
+Wed Dec  5 12:17:11 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* ext/dl/lib/dl/func.rb (DL::Function#initialize, DL::Function#bind):
+	  ABI should be set by using CFunc#calltype even when Fiddle is used.
+	  When Fiddle is used and a block is given, name should not be ignored.
+	  [ruby-core:50562] [Bug #7514]
+
+	* ext/dl/lib/dl/import.rb (DL::Importer#bind_function): should respect
+	  abi and name when Fiddle is used.
+
+	* test/dl/test_func.rb (test_name_with_block): test for "name" method
+	  with giving a block.
+
+Wed Dec  5 11:55:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* doc/shell.rd, doc/shell.rd.ja: Removed stale doc files
+	* lib/shell.rb, lib/shell/*: Merge and updates docs from doc/shell.rd*
+
+Wed Dec  5 11:42:38 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_settracefunc.rb: disable trace.
+
+Wed Dec  5 11:37:37 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#macro_defined?): use clearly different
+	  strings from conflict markers.
+
+Wed Dec  5 04:25:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/README: Add rdoc modeline directive and formatting libs
+
+Wed Dec  5 04:04:02 2012  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* test/ruby/test_thread.rb (test_async_interrupt_blocking): bugfix
+	  about deferred check
+
+Wed Dec  5 03:35:37 2012  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* vm_core.h (RUBY_VM_CHECK_INTS_BLOCKING): check async queue everytime.
+	* thread.c (sleep_forever): check RUBY_VM_CHECK_INTS_BLOCKING first.
+	* thread.c (sleep_timeval): ditto.
+	* test/ruby/test_thread.rb (test_async_interrupt_blocking): add a test
+	  exceptions are correctly deferred and raised on :on_blocking context.
+
+Wed Dec  5 02:36:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk, defs/id.def, template/id.c.tmpl: generate id.c as well as id.h.
+
+Wed Dec  5 00:56:21 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_mutex_owned_p): new method that return current
+	  thread have the target mutex or not. [Feature #7505] [ruby-dev:46697]
+	* test/ruby/test_thread.rb (test_mutex_owned, test_mutex_owned2):
+	  test for the above.
+	* NEWS: new for the above.
+
+Wed Dec  5 00:05:47 2012  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+
+	* lib/erb.rb (make_compiler, add_put_cmd, add_insert_cmd): extract
+	  methods.
+
+Tue Dec  4 18:21:04 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* test/ruby/memory_status.rb (Memory): use fiddle/types if available.
+
+	* test/ruby/memory_status.rb (Memory::Win32): :stdcall is needed on
+	  x86 WIN32. This commit partly reverts r38054.
+
+Tue Dec  4 18:05:58 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* ext/fiddle/lib/fiddle/types.rb: copied from ext/dl/lib/dl/types.rb
+	  and modified for Fiddle, needed for migration from DL to Fiddle.
+
+Tue Dec  4 17:57:09 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* ext/fiddle/lib/fiddle/import.rb (import_function, bind_function):
+	  should respect call_type for migration from DL to Fiddle.
+	  [Bug #7484] [ruby-core:50405]
+
+Tue Dec  4 16:54:00 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* .document:  Added ChangeLog and doc/ChangeLog-* as documentation
+
+Tue Dec  4 16:47:46 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/parser/changelog.rb:  Added a ChangeLog parser to RDoc.
+	* lib/rdoc/parser.rb:  ditto
+	* test/rdoc/test_rdoc_parser_changelog.rb:  Test for above.
+
+Tue Dec  4 16:23:32 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* marshal.c (path2class, path2module): use PRIsVALUE.
+
+	* marshal.c (w_object, marshal_dump, marshal_load): use
+	  rb_check_funcall if possible.
+
+	* marshal.c (w_object, marshal_dump, r_object0, marshal_load): use
+	  RB_GC_GUARD() (directly or indirectly) instead of volatile.
+
+	* variable.c (rb_path_to_class): prevent the argument from GC.
+
+Tue Dec 04 13:55:07 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_opts.h: enable optimization - operand unification.
+	  Operand unification technique enable to combine
+	  an instruction and specific operands and make new
+	  instruction.
+
+	* defs/opt_operand.def: add several configuration
+	  of operand unification.
+
+	* insns.def: use `int' instead to suppress warning.
+
+Mon Dec  3 17:58:53 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* parse.y: replace parser->enc with current_enc.
+
+Tue Dec  4 08:33:46 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* README.EXT:  Converted to RDoc format
+	* README.EXT.ja:  ditto
+
+Tue Dec  4 08:32:10 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/ri/driver.rb:  Fixed ri page display for files with
+	  extensions.
+	* test/rdoc/test_rdoc_ri_driver.rb:  Test for above
+
+Tue Dec  4 04:11:50 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* .document:  Add NEWS for `ri ruby:NEWS`
+	* NEWS:  Set format as rdoc
+	* doc/NEWS-1.8.7:  ditto
+	* doc/NEWS-1.9.1:  ditto
+	* doc/NEWS-1.9.2:  ditto
+	* doc/NEWS-1.9.3:  ditto
+
+Mon Dec  3 20:37:22 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_exec.c: check VM_COLLECT_USAGE_DETAILS.
+
+Mon Dec  3 20:28:02 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (iseq_specialized_instruction):
+	  change condition of using `opt_send_simple'.
+	  More method invocations can be simple.
+
+Mon Dec  3 20:03:38 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_objectspace.rb: skip RuntimeError
+	  which says a message "can't modify frozen File".
+	  Is that correct behavior?
+
+Mon Dec 03 20:00:19 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_exec.c: vm_analysis_insn should be static.
+
+Mon Dec  3 19:10:12 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* random.c (Init_Random), rational.c (Init_Rational): make marshal
+	  methods private.  [Feature #6539]
+
+Mon Dec  3 18:29:27 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* iseq.h: iseq_catch_table_entry::catch_type should be
+	  Fixnum because they are pushed into Array in a compiler.
+	  [Bug #7502]
+
+	* test/ruby/test_objectspace.rb: add a test of this issue.
+
+Mon Dec  3 18:25:16 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* template/id.h.tmpl (preserved_ids): "empty?" is not an attribute name.
+
+Mon Dec  3 16:23:09 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_backtrace.c (vm_backtrace_to_ary): check negative size (2nd arg).
+
+Mon Dec  3 15:50:33 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-additional.el (ruby-mode-set-encoding): Unbreak by
+	  fixing a typo, s/set/setq/.
+
+Mon Dec  3 14:14:19 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (iseq_compile_each): joke shouldn't use id.h defined ids.
+
+	* id.c (Init_id): ditto.
+
+	* common.mk: fix dependency.
+
+Mon Dec  3 12:43:35 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* misc/ruby-mode.el (ruby-block-end-re, ruby-delimiter)
+	  (ruby-mode-syntax-table, ruby-parse-partial, ruby-beginning-of-indent):
+	  merge from Emacs.
+
+	* misc/ruby-mode.el (ruby-calculate-indent): fix indentation of
+	  argument lines in parentheses.  [Bug #5140]
+
+Mon Dec  3 07:52:41 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/parser.rb:  Improved modeline support.  Patch by nobu.
+	* test/rdoc/test_rdoc_parser.rb:  Test for above.
+
+Sun Dec  3 00:06:00 2012  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_new): stop checking string
+	  taintness.  [Bug #5508] [ruby-core:40510]
+
+Sun Dec  2 19:26:47 2012  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* thread.c (RB_GC_SAVE_MACHINE_CONTEXT, rb_gc_save_machine_context):
+	  extract rb_gc_save_machine_context to RB_GC_SAVE_MACHINE_CONTEXT.
+	  NOTE: machine_regs and machine_stack_end must be set in current scope.
+
+Sun Dec  2 18:46:24 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c, enum.c, insns.def, io.c, numeric.c, parse.y, process.c,
+	  range.c: use prepared IDs.
+	  A patch from charliesome (Charlie Somerville).
+	  [Bug #7495]
+
+	* common.mk: add dependency to id.h.
+
+	* common.mk: replace ID_H_INCLUDES with id.h.
+
+Sun Dec  2 16:48:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/weakref.rb (rdoc): Clean up usage, add example,
+	  note ArgumentError on WeakRef.new
+
+Sun Dec  2 16:45:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* gc.c (WeakMap): Add doc for internal reference, use lib/weakref.rb
+
+Sun Dec  2 07:24:23 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/parser.rb:  Parse files with a -*- rdoc -*- modeline
+	* test/rdoc/test_rdoc_parser.rb:  Test for above
+
+Sun Dec  2 06:02:00 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* gc.h (SET_MACHINE_STACK_END): add volatile for preventing
+	  harmful optimization.  [ruby-dev:46665] [Bug #7468]
+
+Sun Dec  2 05:01:58 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* iseq.c (rb_iseq_line_trace_each): iterate `line' event only.
+
+	* test/ruby/test_iseq.rb: add a test for this change.
+
+Sun Dec  2 02:46:04 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c: add TracePoint#inspect.
+
+	* test/ruby/test_settracefunc.rb: add a test for this change.
+
+Sat Dec  1 21:18:19 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_backtrace.rb: add a test for
+	  Thread::Backtrace::Location#inspect.
+	  BTW, tests for `caller_locations' are not enough.
+	  Any volunteers are welcome.
+
+Sat Dec  1 21:06:58 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_backtrace.c (location_inspect_m): add
+	  Thread::Backtrace::Location#inspect.
+	  It same as loc_obj.to_s.inspect.
+
+Sat Dec  1 19:24:09 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_io_puts): recurse for the argument itself, not converted
+	  array elements.  [ruby-core:42444] [Bug #5986]
+
+Sat Dec  1 19:01:36 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* marshal.c (w_object, r_object0): call private marshal methods.
+	  [Feature #6539]
+
+Sat Dec  1 18:52:22 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/commands/cleanup_command.rb:  Fix cleanup command for
+	  multiple gems.  [ruby-trunk - #7481] by Kouhei Sutou
+	* test/rubygems/test_gem_commands_cleanup_command.rb:  Test for above.
+	* lib/rubygems.rb:  Autoload Gem::Source to prevent test failures
+
+Sat Dec  1 18:17:00 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* complex.c (Init_Complex), time.c (Init_Time): make marshal methods
+	  private.  [Feature #6539]
+
+	* object.c (Init_Object): make remove_instance_variable public.
+	  [Feature #6539]
+
+	* id.c (Init_id), template/id.h.tmpl: add initialize_{copy,clone,dup}
+	  and respond_to_missing?.
+
+	* vm_method.c (rb_method_entry_make): make above methods private.
+	  [Feature #6539]
+
+Sat Dec  1 16:40:22 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/ruby/test_thread.rb: move ConditionVariable related test
+	  into test/thread/test_cv.rb.
+	* test/thread/test_cv.rb: new file.
+	* test/thread/test_cv.rb (test_condvar_empty_signal): new tests.
+	* test/thread/test_cv.rb (test_condvar_empty_broadcast): ditto.
+
+Sat Dec  1 15:14:25 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/ruby/test_thread.rb (test_cv_wait_deadlock): enable
+	  cv deadlock test.
+
+Sat Dec  1 14:23:33 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* lib/thread.rb (ConditionVariable): use hash instead of array for
+	  @waiters.
+	* test/thread/test_queue.rb (test_sized_queue_and_wakeup): remove
+	  a test because @waiters no longer have a chance to duplicated. Now it's
+	  a hash.
+
+Sat Dec  1 17:16:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* misc/ruby-electric.el (ruby-electric-curlies): use kill-region
+	  instead of interactive command delete-backward-char.
+
+Sat Dec  1 17:12:55 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* misc/inf-ruby.el (inferior-ruby-mode): fix the
+	  compilation-shell-minor-mode configuration.  a patch by
+	  j2petkov (Jean-Christophe Petkovich) in [ruby-core:46518].
+	  [Bug #6742]
+
+Sat Dec  1 15:05:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (glob_helper): use NAMLEN() to tell the length of d_name
+	  instead of strlen(), which can access beyond the boundary.
+
+Sat Dec  1 13:48:13 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/specification.rb:  Don't add default gems to $LOAD_PATH
+	  as they are already there.
+
+Sat Dec  1 12:22:17 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* re-added r38053 that is reverted by r38061. Problems by r38053
+	  are resolved by r38096. r38096 removed GEM_SKIP configuration.
+
+	  The below is ChangeLog of r38053:
+
+	* defs/default_gems: Add base directory column.
+
+	* tool/rbinstall.rb:
+	  - Install .gemspecs of default gem to
+	    #{GEM_HOME}/specifications/default/.
+	  - Update files parameter of .gemspecs by relative path from
+	    library directory.
+
+Sat Dec  1 11:09:12 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* variable.c (rb_class_path_no_cache): add a function to get the class
+	  path without caching the computed path. Some classes are frozen, and
+	  will raise an exception without this.
+
+	* probes.d (cmethod-entry, cmethod-return): separate cmethods from
+	  regular methods to match set trace func.
+
+	* probes_helper.h: refactor macros.  Fix probes to avoid calling
+	  #inspect when profiling.
+
+	* insns.def: update for use with new macros.
+
+	* vm_eval.c: ditto
+
+	* vm_insnhelper.c: ditto
+
+	* test/dtrace/test_singleton_function.rb: fix test for new output.
+
+	* test/dtrace/test_cmethod.rb: test the cmethod probes.
+
+Sat Dec  1 09:44:16 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* test/rdoc/test_rdoc_options.rb:  Windows drive letters are
+	  case-insensitive.
+
+Sat Dec  1 09:42:13 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems.rb:  Search for gem deps file up the directory tree.
+	* test/rubygems/test_gem.rb:  Test for above.
+
+Sat Dec  1 09:33:32 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* test/runner.rb:  Set GEM_HOME, GEM_PATH and GEM_SKIP to empty set.
+	  With default_gem support in RubyGems GEM_SKIP prevents loading of
+	  built-in gems.
+
+Sat Dec  1 07:16:17 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* compile.c (ADD_CATCH_ENTRY): add a cast to fix SEGV with x64 mingw
+	  on Windows 8. Without cast, 0 might be non zero value at higher bits
+	  in rb_ary_new3().
+	  [ruby-core:50258] [Bug #7456]
+
+Sat Dec  1 04:07:57 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* parse.y (parser.utf8): remove unused property.
+
+	* parse.y (UTF8_ENC): remove unused macro.
+
+	* parse.y (parser_tokadd_utf8): use rb_utf8_encoding() directly.
+
+Sat Dec  1 03:49:45 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* lib/sync.rb (Sync_m#sync_synchronize): add Thread.async_interrupt_timing
+	  for protecting from async interrupt.
+	* lib/sync.rb (Sync_m#sync_lock): ditto.
+
+Sat Dec  1 03:38:04 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* lib/thread.rb (ConditionVariable#broadcast): s/RuntimeError/StandardError/
+	* lib/thread.rb (ConditionVariable#signal): ditto.
+
+Sat Dec  1 03:29:52 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* lib/thread.rb (SizedQueue#pop): rewrite by using ConditionVariable.
+	* lib/thread.rb (SizedQueue#push): ditto.
+	* lib/thread.rb (SizedQueue#max): ditto.
+	* lib/thread.rb (Queue#pop): ditto.
+	* lib/thread.rb (Queue#push): ditto.
+
+	* lib/thread.rb (SizedQueue#num_waiting): adopt the above changes.
+	* lib/thread.rb (SizedQueue#initialize): ditto.
+	* lib/thread.rb (Queue#num_waiting): ditto.
+	* lib/thread.rb (Queue#initialize): ditto.
+	* test/thread/test_queue.rb (test_sized_queue_and_wakeup): ditto.
+
+Sat Dec  1 03:45:47 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* thread.c (Thread.async_interrupt_timing): fix RDoc.
+	  :never is not used any more.
+
+Sat Dec  1 02:56:19 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* iseq.c: add RubyVM::InstructionSequence (ISeq) inspection methods.
+	  * ISeq#path returns path of this ISeq written.
+	  * ISeq#absolute_path returns absolute path.
+	  * ISeq#label returns label (method name and so on).
+	  * ISeq#base_label returns base label (see Thread::Backtrace::Location).
+	  * ISeq#first_lineno returns first line number of this ISeq.
+	  * ISeq.of(obj) returns ISeq object which obj (Proc or Method)
+	    is contains.
+
+	* test/ruby/test_iseq.rb: add tests.
+
+Sat Dec  1 02:58:51 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* include/ruby/ruby.h (rb_event_flag_t):  Maintain integer precision
+	  for clang error (VALUE aka unsigned long vs unsigned int)
+
+Sat Dec  1 02:53:18 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* test/rubygems/test_gem_dependency_installer.rb:  Use Gem.read_binary
+	  instead of File.binread for ruby 1.8 compatibility in the rubygems
+	  source repository.  Updates r38075
+
+Sat Dec  1 02:33:20 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_threadptr_interrupt_mask, async_interrupt_timing_func):
+	  merge into them into rb_thread_s_async_interrupt_timing.
+	* thread.c (rb_thread_s_async_interrupt_timing): ditto.
+
+Sat Dec  1 02:11:47 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_threadptr_interrupt_mask): add argument check.
+	* thread.c (async_interrupt_timing_arg_check_i): helper function
+	  for the above.
+	* test/ruby/test_thread.rb (test_async_interrupt_timing_invalid_argument):
+	  test for the above.
+
+Sat Dec  1 01:19:34 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* lib/thread.rb (ConditionVariable#broadcast): protect from
+	  async interrupt by using Thread.async_interrupt_timing.
+	* lib/thread.rb (ConditionVariable#signal): ditto.
+	* lib/thread.rb (ConditionVariable#wait): ditto.
+
+Sat Dec  1 02:04:23 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* test/ruby/envutil.rb (Test::Unit::Assertions#assert_in_out_err):
+	  raise if assert_in_out_err misused.
+
+Sat Dec  1 02:08:16 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/rdoc/test_rdoc_rubygems_hook.rb
+	  (TestRDocRubygemsHook#test_setup_unwritable): 1. check the existence
+	  of the file(directory) before touch it.  2. remove test
+	  file(directory) after the test.  see [ruby-core:50388].
+
+Sat Dec  1 01:51:06 2012  Koichi Sasada  <ko1@atdot.net>
+
+	[EXPERIMENTAL]
+	* iseq.c: add following two methods.
+	  * ISeq#line_trace_all returns all line traces (line numbers)
+	  * ISeq#line_trace_specify(pos, set) set `pos'th line event to
+	    specified_line event (if set is true).
+	  These features are introduced for debuggers (mainly to make
+	  breakpoint).
+
+	* iseq.h: add decl. of C APIs.
+
+	* test/ruby/test_iseq.rb: add tests.
+
+	* vm_trace.c: add `specified_line' event.
+
+	* include/ruby/ruby.h: ditto.
+
+Sat Dec  1 01:49:52 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/rubygems/test_gem_dependency_installer.rb: gems are of course
+	  binary files, so use a binary reading method when reading it.
+	  see [ruby-core:50388].
+
+Sat Dec  1 01:21:07 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/rubygems/command.rb (Gem::Command#get_all_gem_names_and_versions):
+	  who assumes that the pathname of a gem never contains ':' ?
+	  yes, on Unixen pathnames can contain ':', and on Windows they almost
+	  certainly contain ':'.  see [ruby-core:50388].
+
+	* lib/rubygems/requirement.rb (Gem::Requirement::PATTERN_RAW): extract
+	  the regexp to match the version specifier from PATTERN to use in
+	  above method.
+
+Sat Dec  1 00:48:19 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* ext/fiddle/extconf.rb, ext/fiddle/function.c
+	  (Fiddle::Function::STDCALL): FFI_STDCALL is not a macro, but an
+	  enumeration. [ruby-core:50398] [Bug #7483]
+
+Sat Dec  1 00:08:55 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/rubygems/test_gem_installer.rb
+	  (TestGemInstaller#test_check_executable_overwrite_other_non_gem):
+	  on Windows, rubygems always generate a wrapper .bat file when
+	  installing a file into bin, so testing no-overwrite a wrapper file
+	  and a non-wrapper file is nonsense.  see [ruby-core:50388].
+
+Fri Nov 30 23:39:58 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/rubygems/test_gem_installer.rb
+	  (TestGemInstaller#test_check_executable_overwrite_default_bin_dir):
+	  if the executable to be overwritten was generated by rubygems, the
+	  error message differs from the only copied one's.
+	  see [ruby-core:50388].
+
+Fri Nov 30 23:27:26 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/rubygems/test_gem_ext_ext_conf_builder.rb
+	  (TestGemExtExtConfBuilder::test_class_make): reading with binary mode
+	  of course introduce \r on Windows.  see [ruby-core:50388].
+
+Fri Nov 30 23:11:37 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/rubygems/specification.rb
+	  (Gem::Specification.validate_permissions): don't check executability
+	  of the source on Windows.  they will be wrapped to .bat files when
+	  installing.  see [ruby-core:50388].
+
+Fri Nov 30 22:44:14 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* vm_core.h (rb_vm_struct): add thread_destruct_lock field.
+	* thread.c (Init_Thread): ditto.
+	* thread.c (rb_vm_gvl_destroy): ditto.
+
+	* thread.c (thread_start_func_2): make sure vm->running_thread
+	  don't point to dead thread.
+	* thread.c (timer_thread_function): close a race against thread
+	  destruction. [Bug #4911][ruby-dev:43859]
+
+	* vm_core.h (rb_thread_set_current): reset running time of
+	  current thread instead of previous thread. We no longer
+	  assume previous running thread still live.
+
+Fri Nov 30 21:57:43 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* revert r38053 because it causes too many test failures.
+	  if you've already installed r38053 or later, remove the installed
+	  lib/ruby/gems/2.0.0 directory and reinstall this revision or later.
+
+Fri Nov 30 21:07:56 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/test/unit/parallel.rb (Test::Unit::Worker.run): wrap LoadError
+	  because it's Gem::LoadError sometimes.  see [Bug #6882]
+
+Fri Nov 30 20:47:44 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* thread.c: TracePoint#self returns invoking/exiting thread object
+	  at thread_begin/end event.
+
+	* test/ruby/test_settracefunc.rb: fix test.
+
+Fri Nov 30 19:55:17 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/memory_status.rb (Memory::Win32): use fiddle instead of dl,
+	  but I doubt fiddle is not compatible with dl. (if you are interested,
+	  see the diff.)  [ruby-core:50194] [Bug #7443]
+
+Fri Nov 30 19:37:44 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* defs/default_gems: Add base directory column.
+
+	* tool/rbinstall.rb:
+	  - Install .gemspecs of default gem to
+	    #{GEM_HOME}/specifications/default/.
+	  - Update files parameter of .gemspecs by relative path from
+	    library directory.
+
+Fri Nov 30 19:30:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* vm_trace.c:
+	  tracepoint_attr_return_value (TracePoint#return_value):
+	    include `:b_return` for method doc
+	  tracepoint_enable_m, tracepoint_disable_m (#enable/#disable):
+	    don't have block argument, document block scope
+
+Fri Nov 30 18:52:56 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c (tracepoint_disable_m, tracepoint_enable_m):
+	  fix block parameter.
+	  No argument should be given to a block which is passed
+	  to TracePoint#enable (and disable).
+
+Fri Nov 30 18:23:26 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* thread.c: rename Thread.control_interrupt
+	  to Thread.async_interrupt_timing.
+	  The option name `:never' is also changed to  `:defer'.
+	  [ruby-core:50375] [ruby-trunk - Feature #6762]
+
+	* thread.c: remove Thread.check_interrupt.
+	  This method is difficult to understand by name.
+
+	* thread.c: add Thread.async_interrupted?.
+	  This method check any deferred async interrupts.
+
+	* test/ruby/test_thread.rb: change tests for above.
+
+Fri Nov 30 18:24:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* vm_trace.c: Documentation for TracePoint API
+	  [ruby-core:47243] [Feature #6895]
+
+Fri Nov 30 17:43:50 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_cmp_m): try to compare with to_str result if
+	  possible before calling <=> method.  [ruby-core:49279] [Bug #7342]
+
+	* string.c (rb_str_cmp_m): use rb_check_funcall instead of respond_to
+	  and call.
+
+	* string.c (rb_str_cmp_m): return fixed value, one of -1,0,+1 always.
+
+Fri Nov 30 16:19:14 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_dump.c (rb_vm_bugreport): get rid of calling methods in sigsegv
+	  handler.  based on a patch by charliesome (Charlie Somerville)
+	  [ruby-core:49573] [Bug #7402]
+
+Fri Nov 30 16:05:44 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* NEWS:  Added RubyGems 2.0.0
+
+Fri Nov 30 15:24:37 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_yylex): fix false usage of local variable, it cannot
+	  appear in fname state [ruby-core:49659] [Bug #7408]
+
+Fri Nov 30 15:20:12 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/package.rb:  Load YAML for building gems.
+	* test/rubygems/test_gem_commands_contents_command.rb:  Sort expected
+	  output of default gem contents.  Re-fixes r38004 and r38005.
+
+Fri Nov 30 15:15:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* vm_trace.c (set_trace_func): Formatting of params and events
+
+Fri Nov 30 14:45:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/net/http.rb: Net::HTTP::Patch to list of HTTP Request Classes
+	  Patch by Ryunosuke SATO [Fixes #217 on github]
+
+Fri Nov 30 14:05:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/cgi.rb: CGI example for HTML generation
+	  Patch by Marcus Stollsteimer [ruby-core:50303] [Bug #7465]
+
+Fri Nov 30 13:52:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* time.c: Documentation improvements, grammar and formatting
+	  Patch by Bernd Homuth [ruby-core:49203] [Bug #7326]
+
+Fri Nov 30 13:48:33 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc.rb:  Set version to 4.0.0.preview2
+	* lib/rubygems.rb:  Set version to 2.0.0.preview2
+
+Fri Nov 30 13:11:53 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/commands/setup_command.rb:  Remove old files on install
+	  of RubyGems.  (not by rbinstall.rb).
+	* test/rubygems/test_gem_commands_setup_command.rb:  Test for above.
+
+Fri Nov 30 12:47:59 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/abbrev.rb (Abbrev#abbrev): A fixed string prefix pattern
+	  should only match the beginning of each word, not the beginning
+	  of every line in it.
+
+	* lib/abbrev.rb (Abbrev#abbrev): Stop using a regexp that causes a
+	  false warning. [Bug #7471]
+
+Fri Nov 30 12:30:55 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* test/test_abbrev.rb: Add tests for lib/abbrev.rb.
+
+Fri Nov 30 12:27:51 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/spec_fetcher.rb:  Allow prerelease spec fetching to fail
+	  for bundler.
+	* test/rubygems/test_gem_spec_fetcher.rb:  Test for above.
+
+Fri Nov 30 12:20:53 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rake/backtrace.rb:  Removed duplication in
+	  Rake::Backtrace::SUPPRESSED_PATHS
+	* test/rake/test_rake_backtrace.rb:  Skip tests when tmpdir is in the
+	  suppressed pattern.
+
+Fri Nov 30 11:07:45 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* revert r37993 to avoid SEGV in tests.
+
+Fri Nov 30 10:38:54 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/ri/driver.rb:  Relaxed matching for pages to be more
+	  user-friendly.
+	* test/rdoc/test_rdoc_ri_driver.rb:   Test for above.
+
+Fri Nov 30 09:50:16 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/markdown.rb:  Fixed warnings with -w
+
+Fri Nov 30 09:38:22 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (RB_GC_GUARD_PTR): add note.
+
+	* vm_backtrace.c (backtrace_to_str_ary): use RB_GC_GUARD() instead of
+	  RB_GC_GUARD_PTR() which has no effect.
+	  (backtrace_to_location_ary): ditto.
+	  (vm_backtrace_to_ary): ditto.
+
+Fri Nov 30 09:22:52 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/commands/contents_command.rb:  Sort output from command.
+	  Replaces r38004, r38005
+	* test/rubygems/test_gem_commands_contents_command.rb:  ditto.
+
+	* lib/rubygems/defaults.rb:  Use Gem.path_separator for jruby support.
+	* lib/rubygems/path_support.rb:  ditto
+
+Fri Nov 30 08:34:03 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/generator/darkfish.rb:  Silenced warning
+	* test/rdoc/test_rdoc_rdoc.rb:  ditto
+
+	* lib/rdoc/markup/parser.rb:  Use byteslice when available for
+	  performance
+	* test/rdoc/test_rdoc_markup_parser.rb:  Test for above
+	* lib/rdoc/test_case.rb:  ditto
+
+	* lib/rdoc/parser/ruby.rb:  Fixed bug parsing yield({})
+	* test/rdoc/test_rdoc_parser_ruby.rb (end):
+
+	* lib/rdoc/rubygems_hook.rb:  Skip default gems.  Display generator
+	  name properly.
+	* test/rdoc/test_rdoc_rubygems_hook.rb:  Test for above
+
+	* lib/rdoc/servlet.rb:  Fixed typo.
+
+Fri Nov 30 08:09:56 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c : remove a unused function.
+
+Fri Nov 30 07:46:42 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (rb_objspace_call_finalizer): finalize_deferred may free up
+	  a object which is reachable from a part after this function,
+	  e.g. ruby_vm_destruct(). [ruby-dev:46647] [Bug #7452]
+
+	* test/ruby/test_gc.rb (test_finalizing_main_thread): add a test
+	  for above.
+
+Fri Nov 30 07:43:44 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* thread.c (rb_thread_interrupted): avoid warning of
+	  implicit conversion.
+
+	* thread.c (rb_threadptr_execute_interrupts): ditto.
+
+Fri Nov 30 07:34:28 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_backtrace.c: add GC guards.
+
+Fri Nov 30 07:21:33 2012  Koichi Sasada  <ko1@atdot.net>
+
+	[EXPERIMENTAL: NEED DISCUSS]
+	* vm_trace.c: add events
+	  * :thread_begin - hook at thread beginning.
+	  * :thread_end - hook at thread ending.
+	  * :b_call - hook at block enter.
+	  * :b_return - hook at block leave.
+	  This change slow down block invocation.
+	  Please try and give us feedback until 2.0 code freeze.
+
+	* include/ruby/ruby.h: ditto.
+
+	* compile.c (rb_iseq_compile_node): ditto.
+
+	* insns.def: ditto.
+
+	* thread.c: ditto.
+
+	* vm.c: ditto.
+
+	* include/ruby/debug.h: add a comment.
+
+	* test/ruby/test_settracefunc.rb: add a tests.
+
+Fri Nov 30 06:56:30 2012  Ryan Davis  <ryand-ruby@zenspider.com>
+
+	* test/minitest/*: Imported minitest 4.3.2 (r8027)
+
+Fri Nov 30 04:16:29 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rake/*:  Updated to rake 0.9.5
+	* test/rake/*:  ditto.
+	* NEWS:  ditto.
+
+Fri Nov 30 02:53:47 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* vm.c: add a return hook when a method raises an exception.
+
+	* probes_helper.h: look up klass and method if none are provided.
+
+	* eval.c: update macro usage.
+
+	* vm_eval.c: ditto.
+
+	* vm_insnhelper.c: ditto.
+
+	* test/dtrace/test_function_entry.rb: test for change.
+
+Fri Nov 30 02:27:12 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* compile.c (compile_array_): refix r37991 remove assertion:
+	  it is true only if type == COMPILE_ARRAY_TYPE_HASH.
+	  [ruby-dev:46658] [Bug #7466]
+
+	* vm.c (m_core_hash_from_ary): add assertion instead of above.
+
+	* vm.c (m_core_hash_merge_ary): ditto.
+
+Thu Nov 29 19:15:14 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (compile_array_): hash elements must be paired even for
+	  literal elements.  [ruby-dev:46658] [Bug #7466]
+
+Thu Nov 29 22:39:35 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* ext/openssl/ossl_ssl.c (ssl_npn_encode_protocol_i): fix byte order
+	  issue on big-endian architecture [ruby-core:50292] [Bug #7463]
+
+Thu Nov 29 22:23:31 2012  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* test/openssl/test_cipher.rb (test_ctr_if_exists): add CTR mode test
+	  if underlying OpenSSL supports it. See #4408
+
+Thu Nov 29 21:42:16 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_method.c (rb_method_entry_make): add a method entry with
+	  VM_METHOD_TYPE_REFINED to the class refined by the refinement if
+	  the target module is a refinement.  When a method entry with
+	  VM_METHOD_TYPE_UNDEF is invoked by vm_call_method(), a method with
+	  the same name is searched in refinements.  If such a method is
+	  found, the method is invoked.  Otherwise, the original method in
+	  the refined class (rb_method_definition_t::body.orig_def) is
+	  invoked.  This change is made to simplify the normal method lookup
+	  and to improve the performance of normal method calls.
+
+	* vm_method.c (EXPR1, search_method, rb_method_entry),
+	  vm_eval.c (rb_call0, rb_search_method_entry): do not use
+	  refinements for method lookup.
+
+	* vm_insnhelper.c (vm_call_method): search methods in refinements if
+	  ci->me is VM_METHOD_TYPE_REFINED.  If the method is called by
+	  super (i.e., ci->call == vm_call_super_method), skip the same
+	  method entry as the current method to avoid infinite call of the
+	  same method.
+
+	* class.c (include_modules_at): add a refined method entry for each
+	  method defined in a module included in a refinement.
+
+	* class.c (rb_prepend_module): set an empty table to
+	  RCLASS_M_TBL(klass) to add refined method entries, because
+	  refinements should have priority over prepended modules.
+
+	* proc.c (mnew): use rb_method_entry_with_refinements() to get
+	  a refined method.
+
+	* test/ruby/test_refinement.rb (test_inline_method_cache): do not skip
+	  the test because it should pass successfully.
+
+	* test/ruby/test_refinement.rb (test_redefine_refined_method): new
+	  test for the case a refined method is redefined.
+
+Thu Nov 29 17:45:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* variable.c (rb_const_set): show namespace in warning messages.
+	  [Feature #7190]
+
+Thu Nov 29 17:31:53 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/rubygems.rb (Gem.load_yaml): return if Kernel#gem is not defined
+	  yet. This causes crash if test-all requires libraries in a certain
+	  order. A simple reproducible code is
+	  ruby --disable-gem -e'require"yaml";require"minitest/autorun"'
+
+Thu Nov 29 17:19:26 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/tracer.rb:  Updated to match removal of custom_require from
+	  RubyGems.
+	* test/test_tracer.rb:  ditto.  Improved failure message if the test
+	  fails
+
+Thu Nov 29 17:15:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* gc.c: Documentation for GC, GC::Profiler, ObjectSpace, and
+	  ObjectSpace::WeakMap [ruby-core:50245] [Bug #7449]
+
+Thu Nov 29 17:12:26 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/generic_erb.rb, tool/id2token.rb: add --path-separator option
+	  for mingw where make and built ruby live in different world.
+
+	* tool/vpath.rb: extract from tool/instruction.rb.
+
+Thu Nov 29 17:11:06 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/io/wait/test_io_wait.rb (TestIOWait#fill_pipe):
+	  Errno::EWOULDBLOCK may not be the same as Errno::EAGAIN.  patch by
+	  phasis68 (Heesob Park) at [ruby-core:49894].  [Bug #7420]
+
+Thu Nov 29 17:03:38 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/test_case.rb:  Determine path to certificates to avoid
+	  build-dir problems.
+	* test/rubygems/test_gem_security_signer.rb:  Use predetermined paths
+	  to avoid build-dir problems.
+
+Thu Nov 29 16:18:14 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/test_case.rb:  Disable loading of keys and certificates
+	  outside rubygems or ruby tests as the files are not available (or
+	  necessary).
+
+Thu Nov 29 16:14:41 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_backtrace.c (rb_debug_inspector_open): use RARRAY_LENINT() for
+	  int variable.
+
+Thu Nov 29 15:59:55 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/debug.h: add rb_debug_inspector_* APIs.
+
+	* vm_backtrace.c: ditto.
+
+	* common.mk: add dependency from vm_backtrace.o to
+	  include/ruby/debug.h.
+
+	* proc.c (rb_binding_new_with_cfp): constify.
+
+	* vm.c (rb_vm_get_ruby_level_next_cfp): constify.
+
+	* vm_core.h, vm_trace.c: move decls.
+
+Thu Nov 29 15:56:14 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/rdoc/test_case.rb (RDoc::TestCase#verbose_capture_io):
+	  defined for asserts of warnings.
+
+	* test/rdoc: use verbose_capture_io on asserts of warnings.
+	  they failed when tests was run with RUBYOPT=-W0.
+
+Thu Nov 29 15:53:38 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/psych/extconf.rb: added --enable-bundled-libyaml option.  this
+	  enforces using bundled libyaml.
+
+Thu Nov 29 15:51:54 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems*:  Updated to RubyGems 2.0
+	* test/rubygems*:  ditto.
+
+	* common.mk (prelude):  Updated for RubyGems 2.0 source rearrangement.
+
+	* tool/change_maker.rb:  Allow invalid UTF-8 characters in source
+	  files.
+
+Thu Nov 29 15:38:14 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/debug.h: provide rb_tracearg_*() APIs,
+	  instead of rb_tracepoint_attr_*().
+	  These APIs are for debuggers/profilers.
+	  They will be explained in another docs sometime.
+
+	* vm_trace.c: ditto.
+
+Thu Nov 29 15:10:45 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* test/minitest/test_minitest_unit.rb: restore orig_verbose only
+	  if it is set. This broke rdoc's tests.
+	  http://u64.rubyci.org/~chkbuild/ruby-trunk/log/20121129T050102Z.diff.html.gz
+
+Thu Nov 29 14:56:30 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c (rb_tracepoint_attr_method_id):
+	  rename TracePoint#id to TracePoint#method_id.
+
+	* include/ruby/debug.h: ditto.
+
+	* test/ruby/test_settracefunc.rb: ditto,
+
+Thu Nov 29 14:49:10 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c (rb_tracepoint_attr_defined_class):
+	  rename TracePoint#klass to TracePoint#defined_class.
+	  [ruby-core:50187] Re: [ruby-trunk - Feature #6895]
+
+	* include/ruby/debug.h: ditto.
+
+	* test/ruby/test_settracefunc.rb: ditto.
+
+Thu Nov 29 14:27:57 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_stat): prepare Symbol objects at first time
+	  to make it fast.
+
+Thu Nov 29 14:02:15 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_stat): GC.stat supports new information
+	  * total_allocated_object: total allocated object number.
+	  * total_freed_object: total freed object number.
+	  Above two numbers are only accumulated and they will
+	  overflow (return to 0). Please use them as a hint.
+
+Thu Nov 29 12:13:54 2012  Ryan Davis  <ryand-ruby@zenspider.com>
+
+	* lib/minitest/*: Imported minitest 4.3.2 (r8026)
+	* test/minitest/*: ditto
+
+Thu Nov 29 11:06:06 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (thread_start_func_2): remove unused code. When
+	  th->safe_level == 4, th->errinfo never be thrown. So, to
+	  create new exception makes no sense.
+
+Thu Nov 29 10:29:53 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_backtrace.c: same as a last patch.
+
+Thu Nov 29 10:24:25 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_backtrace.c: use `long' for return values of `NUM2LONG()'.
+
+Thu Nov 29 09:52:08 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* thread.c (do_select): suppress warning (uninitialized value warning)
+	  with UNINITIALIZED_VAR().
+
+Thu Nov 29 09:36:09 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* eval.c (ruby_cleanup): delay THREAD_KILLED timing.
+	  It should be located just before rb_thread_terminate_all().
+
+Thu Nov 29 09:10:17 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_backtrace.c (vm_backtrace_to_ary): support range argument
+	  like Array#[].
+	  [ruby-core:50092] [ruby-trunk - Feature #7434]
+	  Test and document is not available. Please help us.
+
+Thu Nov 29 06:46:33 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (thread_start_func_2): small cleanups.
+
+Thu Nov 29 06:37:08 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (thread_start_func_2): remove unused code.
+	  this function never be used for main thread.
+
+Thu Nov 29 06:27:55 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (thread_start_func_2): remove unused code.
+	  errinfo = th->errinfo; and errinfo = rb_errinfo(); are
+	  the same.
+
+Thu Nov 29 05:26:32 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_backtrace.c (backtrace_to_str_ary2): rename to backtrace_to_str_ary.
+
+	* vm_backtrace.c (rb_backtrace_to_str_ary): use `backtrace_to_str_ary()'.
+
+	* vm_backtrace.c (backtrace_to_frame_ary): rename to
+	  backtrace_to_location_ary.
+
+Thu Nov 29 05:19:25 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* probes.d: Change function-entry probe to method-entry.
+	* insns.def: ditto
+	* probes_helper.h: ditto
+	* test/dtrace/test_function_entry.rb: ditto
+	* test/dtrace/test_singleton_function.rb: ditto
+	* vm.c: ditto
+	* vm_eval.c: ditto
+	* vm_insnhelper.c: ditto
+
+Thu Nov 29 04:45:17 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_backtrace.c: rename Class name from
+	  ::RubyVM::Backtrace and ::RubyVM::Backtrace::Location
+	  to ::Thread::Backtrace and ::Thread::Backtrace::Location.
+
+Wed Nov 28 23:52:02 2012  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* NEWS (Thread) remove incompatible changes about trap.
+
+Wed Nov 28 23:39:01 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* thread.c (rb_mutex_sleep): fix to allow spurious wakeup.
+	  [ruby-dev:46654] [ruby-trunk - Bug #7455]
+
+	* NEWS: write about spurious wakeup.
+
+Wed Nov 28 22:57:23 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* thread_win32.c: catch up latest change of BLOCKING_REGION.
+
+Wed Nov 28 22:54:21 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (vm_call_method): fix undefined behavior.
+	  Should not access scope local variable from outer scope.
+
+Wed Nov 28 22:20:55 2012  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* test/ruby/test_thread.rb (test_thread_status_in_trap): change test for
+	  thread status in trap. now can accept Thread#join and Thread#value in trap.
+
+Wed Nov 28 21:58:47 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/thread.h (rb_thread_call_without_gvl2): change
+	  meaning of function.
+	  This function is called with same parameters of
+	  `rb_thread_call_without_gvl()'.
+	  However, if interrupts are detected, then return immediately.
+
+	* thread.c: implement `rb_thread_call_without_gvl2()'.
+
+Wed Nov 28 21:31:21 2012  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* thread.c (thread_join_sleep): check spurious wakeup by itself for
+	corresponding status change in trap context.
+	* vm_core.h (struct rb_thread_struct): add rb_thread_list_t and use as join_list for
+	reentry by trap context.
+	* thread.c (thread_start_func_2): ditto.
+	* thread.c (remove_from_join_list): ditto.
+	* thread.c (rb_thread_atfork): ditto.
+	* thread.c (thread_join): ditto. & remove trap handler check.
+	* thread.c (sleep_forever): add argument : spurious_check.
+	* thread.c (sleep_timeval): ditto.
+	* thread.c (rb_thread_sleep_forever): set spurious_check.
+	* thread.c (rb_thread_sleep_deadly): ditto.
+	* thread.c (sleep_for_polling): ditto.
+	* thread.c (rb_thread_wait_for): ditto.
+	* thread.c (sleep_wait_for_interrupt): bypass spurious_check.
+
+Wed Nov 28 21:23:18 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/psych/yaml/emitter.c (yaml_emitter_write_indicator): constify.
+
+	* ext/psych/yaml/emitter.c (yaml_emitter_write_block_scalar_hints):
+	  ditto.
+
+	* ext/psych/extconf.rb: mingw32 also needs macros for win32, not
+	  only mswin32.
+
+	* ext/psych/extconf.rb: compile sources in the source directory
+	  without copying by using VPATH.
+
+Wed Nov 28 21:18:57 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#each_compile_rules): splat $(*VPATH*) for
+	  each VPATH elements.
+
+Wed Nov 28 16:40:14 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* vm_core.h (enum rb_thread_status): remove THREAD_TO_KILL
+	* vm_core.h (struct rb_thread_struct): add to_kill field
+	* thread.c (terminate_i): convert THREAD_TO_KILL to to_kill.
+	* thread.c (rb_threadptr_to_kill): ditto.
+	* thread.c (rb_thread_kill): ditto.
+	* thread.c (rb_thread_wakeup_alive): ditto.
+	* thread.c (thread_list_i): ditto.
+	* thread.c (static const char): ditto.
+	* thread.c (thread_status_name): ditto.
+	* thread.c (rb_thread_status): ditto.
+	* thread.c (rb_thread_inspect): ditto.
+	* vm_backtrace.c (thread_backtrace_to_ary): ditto.
+
+	* thread.c (rb_threadptr_execute_interrupts): fix thread status
+	  overwritten issue. [Bug #7450] [ruby-core:50249]
+
+	* test/ruby/test_thread.rb (test_hread_status_raise_after_kill):
+	  test for the above.
+	* test/ruby/test_thread.rb (test_thread_status_in_trap): test for
+	  thread status in trap.
+	* test/ruby/test_thread.rb (test_status_and_stop_p): remove
+	  Thread.control_interrupt unsafe test. Thread#kill no longer
+	  changes thread status. Instead of, Thread#kill receiver changes
+	  their own status when receiving kill signal.
+
+Wed Nov 28 16:21:46 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (struct rb_mutex_struct): add allow_trap field.
+	* internal.h (rb_mutex_allow_trap): added.
+	* thread.c (rb_mutex_lock, rb_mutex_unlock): check mutex->allow_trap.
+	* thread.c (mutex_sleep): remove trap check because it uses
+	  rb_mutex_lock and rb_mutex_unlock internally.
+	* thread.c (rb_mutex_allow_trap): new helper function for the above.
+
+	* io.c (io_binwrite): mark fptr->write_lock as writable in trap.
+
+	* test/ruby/test_signal.rb (test_trap_puts): test for the above.
+
+Wed Nov 28 16:59:12 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* proc.c: remove Proc#== and Proc#eql?.
+	  Proc objects compared with their object ids.
+	  [Bug #4559]
+
+	* test/ruby/test_proc.rb: remove related test.
+
+Wed Nov 28 16:41:04 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/servlet.rb:  Add support for serving documentation from a
+	  subdirectory.
+	* lib/rdoc/generator/darkfish.rb:  ditto
+	* test/rdoc/test_rdoc_servlet.rb:  Test for above
+	* test/rdoc/test_rdoc_servlet.rb:  ditto
+
+Wed Nov 28 15:37:17 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: fix r37924: run only on i[3-6]86-linux.
+
+Wed Nov 28 15:31:11 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (FMODE_SYNCWRITE): removed unused macro.
+
+Wed Nov 28 15:19:25 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* configure.in: revert r37911, r37906 and r37904 which break build
+	  with non-gcc and/or non-IA32 compilers, e.g. Solaris Studio,
+	  Fujitsu C Compiler. [ruby-dev:46646] [Bug #7451]
+
+Wed Nov 28 14:50:55 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/psych/extconf.rb: copy sources into build directory,
+	  not into srcdir.
+
+Wed Nov 28 14:34:06 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_mutex_lock): moved trap context check from
+	  rb_mutex_trylock because try_lock have no change to make
+	  a deadlock.
+	* thread.c (rb_mutex_trylock): ditto.
+	* NEWS: news for the above.
+
+Wed Nov 28 13:39:54 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (thread_s_new): uses main_thread->status instead of
+	  th->inhibit_thread_creation for preventing thread creation.
+	* vm_core.h (rb_vm_struct): remove inhibit_thread_creation field.
+	* thread.c (rb_thread_terminate_all): ditto.
+
+Wed Nov 28 13:27:29 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/extconf.rb: use embedded libyaml if no system libyaml is
+	  found. [ruby-core:49463]
+	* ext/psych/lib/psych.rb: updating to psych 2.0.0
+	* ext/psych/lib/psych/deprecated.rb: updated docs
+	* ext/psych/psych.gemspec: updated to psych 2.0.0
+	* ext/psych/psych.h: fixing header file include for rename
+	* ext/psych/psych_emitter.c: renamed to avoid libyaml conflict.
+	* ext/psych/psych_emitter.h: ditto
+	* ext/psych/psych_parser.c: ditto
+	* ext/psych/psych_parser.h: ditto
+	* ext/psych/psych_to_ruby.c: ditto
+	* ext/psych/psych_to_ruby.h: ditto
+	* ext/psych/psych_yaml_tree.c: ditto
+	* ext/psych/psych_yaml_tree.h: ditto
+	* ext/psych/yaml/LICENSE: embedding libyaml 0.1.4
+	* ext/psych/yaml/api.c: ditto
+	* ext/psych/yaml/config.h: ditto
+	* ext/psych/yaml/dumper.c: ditto
+	* ext/psych/yaml/emitter.c: ditto
+	* ext/psych/yaml/loader.c: ditto
+	* ext/psych/yaml/parser.c: ditto
+	* ext/psych/yaml/reader.c: ditto
+	* ext/psych/yaml/scanner.c: ditto
+	* ext/psych/yaml/writer.c: ditto
+	* ext/psych/yaml/yaml.h: ditto
+	* ext/psych/yaml/yaml_private.h: ditto
+
+Wed Nov 28 12:54:59 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (thread_join): A trap handler check was moved from
+	  thread_join_m because Thread#value should be raised an exception
+	  too.
+	* thread.c (thread_join_m): remove trap handler check.
+	* test/ruby/test_thread.rb (test_thread_join_in_trap): add test
+	  for thread#value.
+	* NEWS: documentation fix for the above.
+
+Wed Nov 28 11:07:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/fiddle/closure.c: Documentation for Fiddle
+	* ext/fiddle/lib/fiddle/import.rb: ditto
+	* ext/fiddle/lib/fiddle/value.rb: ditto
+	* ext/fiddle/lib/fiddle/pack.rb: ditto
+	* ext/fiddle/lib/fiddle/cparser.rb: ditto
+	* ext/fiddle/lib/fiddle/struct.rb: ditto
+	* ext/fiddle/lib/fiddle/function.rb: ditto
+
+Wed Nov 28 09:15:51 2012  Ryan Davis  <ryand-ruby@zenspider.com>
+
+	* ext/strscan/strscan.c: Added #charpos for multibyte string position.
+	* test/strscan/test_stringscanner.rb: ditto
+
+Wed Nov 28 09:00:34 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/fiddle/fiddle.c: adding alignment constants for compatibility
+	  with DL.
+	* ext/fiddle/fiddle.h: ditto
+	* ext/fiddle/lib/fiddle/cparser.rb: importing the C parser for DL
+	  backwards compatibility.
+	* ext/fiddle/lib/fiddle/import.rb: importing the import DSL for DL
+	  backwards compatibility.
+	* ext/fiddle/lib/fiddle/pack.rb: importing structure pack for DL
+	  backwards compatibility.
+	* ext/fiddle/lib/fiddle/value.rb: ditto
+	* ext/fiddle/lib/fiddle/struct.rb: importing struct DSL for DL backwards
+	  compatibility.
+	* test/dl/test_c_struct_entry.rb: importing tests
+	* test/dl/test_c_union_entity.rb: ditto
+	* test/dl/test_cparser.rb: ditto
+	* test/dl/test_import.rb: ditto
+	* test/fiddle/test_c_struct_entry.rb: ditto
+	* test/fiddle/test_c_union_entity.rb: ditto
+	* test/fiddle/test_cparser.rb: ditto
+	* test/fiddle/test_import.rb: ditto
+
+Wed Nov 28 08:56:00 2012  Zachary Scott <zachary@zacharyscott.net>
+
+	* doc/globals.rdoc: Add documentation file for magic globals
+	[ruby-core:29048] [Bug #3022]
+
+Wed Nov 28 08:55:00 2012  Zachary Scott <zachary@zacharyscott.net>
+
+	* .document: Add README's to be included with docs
+
+Wed Nov 28 08:26:00 2012  Zachary Scott <zachary@zacharyscott.net>
+
+	* ext/dl/lib/dl.rb: Deprecation notice for DL
+
+Wed Nov 28 08:25:00 2012  Zachary Scott <zachary@zacharyscott.net>
+
+	* ext/fiddle/closure.c: Documentation for Fiddle
+	* ext/fiddle/pointer.c: ditto
+	* ext/fiddle/function.c: ditto
+	* ext/fiddle/lib/fiddle.rb: ditto
+	* ext/fiddle/fiddle.c: ditto
+	* ext/fiddle/handle.c: ditto
+
+Wed Nov 28 04:53:40 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/fiddle/handle.c: Make Fiddle independent of DL, copy DL::Handle
+	  to Fiddle::Handle.
+	* ext/fiddle/pointer.c: Make Fiddle independent of DL, copy
+	  DL::Pointer to Fiddle::Pointer.
+	* test/fiddle/test_func.rb: relevant tests
+	* test/fiddle/test_handle.rb: ditto
+	* test/fiddle/test_pointer.rb: ditto
+	* ext/dl/lib/dl/struct.rb: use Fiddle::Pointer if available
+	* ext/fiddle/extconf.rb: check for dlfcn.h
+	* ext/fiddle/fiddle.c: add constants for sizeof() things
+	* ext/fiddle/fiddle.h: include dlfcn.h
+	* ext/fiddle/function.c: expose a C function for creating new
+	  Fiddle::Function objects.
+	* ext/fiddle/lib/fiddle.rb: include constants for dl backwards compat
+	* ext/fiddle/lib/fiddle/function.rb: read the pointer from the
+	  function for dl backwards compat.
+	* test/dl/test_callback.rb: check the addresses of the pointers rather
+	  than their types.
+	* test/fiddle/helper.rb: remove dependency on dl
+	* test/fiddle/test_closure.rb: ditto
+	* test/fiddle/test_fiddle.rb: ditto
+
+Wed Nov 28 03:03:28 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in (opt-dir): don't use non portable flag -E of sed.
+
+Wed Nov 28 02:55:35 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in (ARCH_FLAG): __sync_val_compare_and_swap_4 needs
+	  -march=$target_cpu on at least linux gcc 4.1.
+	  patched by KOSAKI Motohiro
+
+Tue Nov 27 22:03:09 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* string.c (rb_str_enumerate_chars, rb_str_enumerate_codepoints)
+	  (rb_str_enumerate_lines): Dummy initialization of ary has been
+	  replaced with UNINITIALIZED_VAR().
+
+Tue Nov 27 21:29:00 2012  Kenta Murata  <mrkn@mrkn.jp>
+
+	* bignum.c (bigdivrem): optimize the way to retry calculation of
+	  bigdivrem so that the calculation is started from the point where
+	  the last interruption was occurred.
+
+	* bignum.c (bigdivrem1): ditto.
+
+	* test/ruby/test_bignum.rb: add a test case for rb_bigdivrem in the
+	  case that an interruption is occurred during bigdivrem1 is running.
+
+Tue Nov 27 19:56:43 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (rb_vm_make_env_object): make Proc object if Env is possible
+	  to point block.
+	  [ruby-core:41038] [ruby-trunk - Bug #5634]
+
+	* vm.c (rb_vm_make_proc): No need to make Proc object here.
+
+	* bootstraptest/test_proc.rb: add tests.
+
+Tue Nov 27 18:51:06 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* ruby_atomic.h (ATOMIC_CAS): added for Solaris and other platforms.
+	* ruby_atomic.h, signal.c (NEED_RUBY_ATOMIC_OPS): renamed from
+	  NEED_RUBY_ATOMIC_EXCHANGE.
+	* signal.c (ruby_atomic_compare_and_swap): naive, non-atomic
+	  compare-and-swap implementation only used for platforms without
+	  valid support for atomic operations.
+
+Tue Nov 27 17:43:46 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/*:  Added --root option for building documentation outside
+	  the source directory.
+	* test/rdoc/*:  ditto
+	* common.mk (rdoc):  Added --root to rdoc rule
+
+Tue Nov 27 16:24:45 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* test/rdoc/test_rdoc_ri_paths.rb:  Fixed duplicate path bug which
+	  caused windows failures.
+
+Tue Nov 27 16:06:00 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* test/rdoc/test_rdoc_generator_darkfish.rb:  Updated tests for windows
+	* test/rdoc/test_rdoc_options.rb:  ditto
+	* test/rdoc/test_rdoc_parser.rb:  ditto
+	* test/rdoc/test_rdoc_rdoc.rb:  ditto
+	* test/rdoc/test_rdoc_ri_driver.rb:  ditto
+	* test/rdoc/test_rdoc_servlet.rb:  ditto
+
+Tue Nov 27 15:13:51 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* common.mk (rdoc):  Set --debug for rdoc generation in case of bugs
+
+Tue Nov 27 14:56:45 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/rubygems_hook.rb:  Updated for (upcoming) RubyGems 2
+	  import.
+	* test/rdoc/test_rdoc_rubygems_hook.rb:  ditto
+
+Tue Nov 27 13:59:29 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* NEWS: add improvements of the garbage collector.
+
+Tue Nov 27 13:27:46 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc*:  Updated to RDoc 4.0 (pre-release)
+	* bin/rdoc:  ditto
+	* test/rdoc*:  ditto
+	* NEWS:  Updated with RDoc 4.0 information
+
+Tue Nov 27 12:17:11 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* thread.c (rb_thread_terminate_all): retry broadcast only when
+	  an exception is raised.
+
+Tue Nov 27 12:02:25 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* thread.c (rb_thread_terminate_all): broadcast terminate event
+	  not only an interrupt exception but any exceptions.
+
+Tue Nov 27 10:55:09 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* eval.c (ruby_cleanup): set thread status to THREAD_KILLED
+	  for preventing thr.raise.
+	* test/ruby/test_thread.rb (test_main_thread_status_at_exit):
+	  test for the above.
+
+Tue Nov 27 10:31:29 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_thread_terminate_all): suppress a warning.
+
+Tue Nov 27 09:29:11 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (thread_join): raises ThreadError if target thread
+	  is a main thread.
+	* test/ruby/test_thread.rb (test_thread_join_main_thread):
+	  test for the above.
+	* NEWS: news for the above.
+
+Tue Nov 27 09:24:47 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (thread_join): raises ThreadError if target thread
+	  is a current thread.
+	* test/ruby/test_thread.rb (test_thread_join_current):
+	  test for the above.
+	* NEWS: news for the above.
+
+Tue Nov 27 09:59:16 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/extmk.rb (extmake): close mkmf.log for each libraries so that
+	  failure messages are not mixed.
+
+Tue Nov 27 09:58:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/digest/*/extconf.rb, ext/openssl/extconf.rb: get git rid of
+	  post-1.8 feature require_relative for cross compilation.
+	  [ruby-core:50160] [Bug #7439]
+
+Tue Nov 27 09:17:59 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* NEWS: add TracePoint.
+
+Tue Nov 27 08:16:03 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c: rename TracePoint#file and TracePoint#line
+	  to TracePoint#path and TracePoint#lineno respectively.
+	  They are consistent to RubyVM::Backtrace::Location.
+
+	* include/ruby/debug.h: ditto.
+
+	* vm_core.h: ditto.
+
+	* test/ruby/test_settracefunc.rb: ditto.
+
+Tue Nov 27 08:04:26 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_thread_terminate_all): broadcast eTerminateSignal
+	  again when Ctrl-C was pressed. [Feature #1952] [ruby-dev:39107]
+
+Tue Nov 27 07:58:03 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h: add members to rb_trace_arg_t:
+	  * `klass_solved' represents klass and id is checked.
+	  * `line' represents line calculated from cfp.
+	  * `file' represents line calculated from cfp.
+
+	* vm_trace.c: fix to use above data structures.
+	  No need to calculate klass and id, line and file
+	  pairs for each trace points.
+
+Tue Nov 27 07:47:09 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_thread_terminate_all): add RUBY_VM_CHECK_INTS_BLOCKING().
+	  Otherwise the loop in this function behave as busy loop because
+	  native_sleep() return immediately when RUBY_VM_INTERRUPTED() is true.
+
+Tue Nov 27 04:12:49 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/extmk.rb (extmake): git rid of post-1.8 features for cross
+	  compilation.  [ruby-core:50160] [Bug #7439]
+
+Tue Nov 27 00:13:41 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_mutex_trylock, rb_mutex_unlock, mutex_sleep):
+	  raises ThreadError if called from trap handler as Thread#join.
+	* NEWS: news for the above.
+
+Mon Nov 26 23:55:33 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* NEWS: update for Thread#join incompatible change.
+
+Mon Nov 26 22:44:24 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_thread_terminate_all): use native_sleep() instead
+	  of rb_thread_schedule(). Otherwise, it consume 100% cpu meaninglessly.
+	  [Bug #5368] [ruby-dev:44546]
+	* thread.c (thread_start_func_2): last sub-thread wakes up main thread.
+
+Mon Nov 26 21:16:04 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* vm_core.h (RUBY_VM_SET_TIMER_INTERRUPT, RUBY_VM_SET_INTERRUPT)
+	(RUBY_VM_SET_FINALIZER_INTERRUPT, RUBY_VM_SET_TRAP_INTERRUPT)
+	(RUBY_VM_INTERRUPTED): use enum symbol instead of immediate value.
+	* thread.c (thread_join_m, rb_threadptr_execute_interrupts): ditto.
+	* signal.c (signal_exec): ditto.
+
+Mon Nov 26 20:23:20 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (thread_join_m): use th->interrupt_mask instead of
+	  th->in_trap.
+
+	* vm_core.h (struct rb_thread_struct): remove in_trap member.
+	* signal.c (signal_exec): ditto.
+	* thread.c (thread_create_core): ditto.
+	* thread.c (Init_Thread): ditto.
+
+Mon Nov 26 20:23:49 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_argf.rb (TestArgf#test_chars): since marshal data is
+	  binary, shouldn't pass via text mode.  use base64 encoded data.
+
+Mon Nov 26 19:45:18 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* ruby_atomic.h (ATOMIC_CAS): new macro for compare-and-exchange.
+
+	* vm_core.h (struct rb_thread_struct): add interrupt_mask member.
+	* thread.c (thread_create_core, Init_Thread): initialize
+	  th->thread_mask.
+
+	* vm_core.h (RUBY_VM_INTERRUPTED_ANY): new macro for avoiding
+	  bare th->interrupt_flag.
+	* vm_core.h (RUBY_VM_INTERRUPTED, RUBY_VM_INTERRUPTED): check
+	  th->interrupt_mask.
+	* thread.c (set_unblock_function, rb_thread_schedule): replace
+	  th->interrupt_flag with RUBY_VM_INTERRUPTED_ANY()
+
+	* signal.c (signal_exec): set up thread->interrupt_mask for
+	  preventing recursive trap handler.
+	* vm_core.h (RUBY_VM_CHECK_INTS, RUBY_VM_CHECK_INTS_BLOCKING): ditto.
+
+	* thread.c (rb_threadptr_execute_interrupts):
+	  don't process interrupt if it is masked.
+	  [Bug #6009] [ruby-core:42524]
+
+Mon Nov 26 19:43:42 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* iseq.c (make_compile_option_value): add trace_instruction option.
+	  a patch by davidbalbert (David Albert).
+	  [Bug #6786]
+
+Mon Nov 26 19:10:53 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* bootstraptest/test_thread.rb: try to `join' each 100
+	  threads.
+	  This benchmark seems consuming long time on travis-ci
+	  several times (and make `failure').
+
+Mon Nov 26 18:22:56 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* common.mk: specify label `built-ruby'.
+
+	* benchmark/driver.rb: quote path.
+
+Mon Nov 26 18:26:28 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* signal.c (signal_exec): add volatile to make sure setjmp safe.
+
+Mon Nov 26 18:19:47 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* signal.c (signal_exec): suppress "warning: variable 'signum'
+	  might be clobbered by 'longjmp' or 'vfork'" warning.
+
+Mon Nov 26 18:15:47 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/driver.rb: accept multiple `-e'.
+	  You don't need to use `;' separation character.
+	  [ruby-core:50139] [ruby-trunk - Bug #7380]
+
+Mon Nov 26 17:10:04 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* string.c (rb_str_enumerate_chars, rb_str_enumerate_codepoints)
+	(rb_str_enumerate_lines): suppress "may be used uninitialized in
+	  this function" warning.
+
+Mon Nov 26 17:00:12 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* vm_core.h (rb_thread_struct): added 'in_trap' member for marking
+	  running trap handler.
+	* signal.c (signal_exec): turn on in_trap when running trap.
+	* thread.c (Init_Thread, thread_create_core): initialize in_trap
+	  when creating new threads.
+	* thread.c (thread_join_m): raise ThreadError when running trap
+	  handler.Bug [#6416][ruby-core:44956]
+	* test/ruby/test_thread.rb (test_thread_join_in_trap): new test
+	  for the above.
+
+Mon Nov 26 16:36:13 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* io.c (argf_each_codepoint): add missing ARGF#codepoints [Bug #7438]
+
+Mon Nov 26 15:50:29 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* bignum.c (bigdivrem): restart calculation when bigdivrem1 was
+	  interrupted by signal. Otherwise, ruby script may see a garbage
+	  value.
+
+Mon Nov 26 15:33:02 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* bignum.c (big_div_struct): added volatile to 'stop' member.
+	  Otherwise, "if (bds->stop)" check in bigdivrem1 don't read
+	  memory and ignore interrupt.
+	* bignum.c (bigdivrem, rb_big_stop): ditto.
+
+Mon Nov 26 12:11:09 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/Makefile.sub (DLNOBJ): missing in r37821.
+
+Mon Nov 26 10:50:19 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/ruby/test_process.rb (test_setsid): added a few wait for
+	  preventing that Process.getsid(io.pid) makes Errno::ESRCH.
+
+Sun Nov 25 22:34:00 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* array.c (ary_resize_smaller): new function to resize array.
+
+	* array.c (rb_ary_delete): refactoring to extract a function.
+
+	* array.c (rb_ary_delete_same): refactoring.
+	  It renames function, reduces duplicated code and removes unused
+	  code.
+
+	* gc.c (wmap_final_func): follow the above change.
+
+	* internal.h (rb_ary_delete_same): ditto.
+
+Sun Nov 25 22:27:33 2012  Benoit Daloze  <eregontp@gmail.com>
+
+	* array.c: fixes for the updated documentation in r35858:
+	  Typos and #take/#drop accept to take/drop 0 elements.
+
+Sun Nov 25 19:43:29 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* NEWS: add a news about iconv.
+
+Sun Nov 25 03:49:23 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/set.rb, test/test_set.rb: Move tests embedded in lib/set.rb
+	  to test/test_set.rb.
+
+Sun Nov 25 03:44:50 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* string.c (rb_str_each_line, rb_str_lines): String#lines now
+	  returns an array instead of an enumerator.  Passing a block is
+	  deprecated but still supported for backwards compatibility.
+	  Based on the patch by yhara. [Feature #6670]
+
+	* string.c (rb_str_each_char, rb_str_chars): Ditto for
+	  String#chars.
+
+	* string.c (rb_str_each_codepoint, rb_str_codepoints): Ditto for
+	  String#codepoints.
+
+	* string.c (rb_str_each_byte, rb_str_bytes): Ditto for
+	  String#bytes.
+
+	* NEWS: Add notes for the above changes.
+
+Sun Nov 25 02:07:37 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* test/ruby/envutil.rb (Test::Unit::Assertions#assert_warning)
+	  (Test::Unit::Assertions#assert_warn), test/ruby/envutil.rb,
+	  test/ruby/test_enumerator.rb, test/ruby/test_io_m17n.rb,
+	  test/ruby/test_regexp.rb, test/ruby/test_syntax.rb:
+	  assert_warn() and assert_warning() are reversed.
+
+Sat Nov 24 21:08:50 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* gc.c (wmap_final_func): rename variables to clarify the meaning.
+	  In wmap2obj the key is WeakRef and the value is referenced object.
+	  In obj2wmap the key is referenced object and the value is an array
+	  of WeakRef.
+
+	* gc.c (wmap_finalize): ditto.
+	  [ruby-core:49044] [Bug #7304]
+
+Sat Nov 24 21:01:55 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* array.c (rb_ary_delete_same_obj): new function for WeakRef.
+	  This deletes same objects as item argument in the array.
+
+	* internal.h (rb_ary_delete_same_obj): add a declaration.
+
+	* gc.c (wmap_final_func): remove WeakRef object reference from the
+	  array. rb_ary_delete() is not usable because it uses rb_equal() to
+	  compare object references.
+
+	* gc.c (wmap_finalize): remove recycled object references from weak
+	  map hash properly. How to get object reference from object id was
+	  wrong. st_delete() doesn't work properly if key and value arguments
+	  are same. The key of obj2wmap is referenced object and the value of
+	  obj2wmap is WeakRef array.
+
+	* gc.c (wmap_aset): obj2wmap should contain WeakRef array in the
+	  definition.
+
+	* test/test_weakref.rb
+	  (TestWeakRef#test_not_reference_different_object,
+	   TestWeakRef#test_weakref_finalize): add tests for above.
+	  [ruby-core:49044] [Bug #7304]
+
+Sat Nov 24 19:44:41 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/nkf/nkf-utf8/nkf.c (unicode_iconv_combine): returning flags are
+	  nkf_char.
+
+Sat Nov 24 19:29:18 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* test/ruby/test_rubyoptions.rb (test_usage, test_usage_long):
+	  reduced, renamed.
+
+Sat Nov 24 13:10:14 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c (rb_tracepoint_attr_raised_exception): should not check
+	  value before event checking.
+
+	* vm_trace.c (rb_tracepoint_attr_return_value): ditto.
+
+	* test/ruby/test_settracefunc.rb: add tests for TracePoint#return_value
+	  and TracePoint#raised_exception.
+
+Sat Nov 24 12:47:27 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/ruby/test_process.rb (TestProcess#test_setsid): "./ruby-trunk"
+	  doesn't work on all environments. EnvUtil.rubybin would be suitable.
+
+Sat Nov 24 12:28:04 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* array.c (rb_ary_aref): fix Segmentation fault at TestArray#test_aref
+	  on x64 mingw. Variable argument of rb_scan_args() should be a pointer
+	  (VALUE *), but 0 of variable argument seems not equal to null pointer
+	  on x64 mingw.
+
+Sat Nov 24 11:47:14 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* process.c (proc_getsid): adds new method for getting session id.
+	  Contributed from fumiyas (Fumiyasu SATOH). Thank you!
+	  [Feature #6757] [ruby-dev:45977]
+	* configure.in: adds getsid check.
+	* test/ruby/test_process.rb (TestProcess#test_setsid): new test
+	  for the above.
+	* NEWS: news for the above.
+
+Sat Nov 24 10:59:14 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (thread_create_core): don't use th->thread_id before
+	  initialized.
+
+Sat Nov 24 00:00:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ruby.c (proc_options, process_options, ruby_process_options): take
+	  care of the case argc is 0, and check if argv has NULL.
+	  [ruby-core:49889] [Bug #7423]
+
+Sat Nov 24 00:00:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (--disable-dln): option to disable dynamic linking
+	  feature.  [ruby-core:37676] [Feature #4946]
+
+Fri Nov 23 23:44:41 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#pkg_config): strip all white spaces for
+	  mingw64+MSYS pkg-config which erroneously emits extra newlines.
+	  [ruby-core:47998] [Bug #7163]
+
+Fri Nov 23 17:31:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ruby.c (usage): wrap description lines if options are too long.
+
+Fri Nov 23 11:13:46 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/test_rubyoptions.rb (TestRubyOptions#test_usage2): refine
+	  assertion.
+
+	* test/ruby/test_rubyoptions.rb (TestRubyOptions#test_usage2): now
+	  --help option is for modern terminals.
+
+Fri Nov 23 10:45:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/socket/ipsocket.c (IPSocket#peeraddr): Fix example
+	  [ruby-core:46429] [Bug #6732]
+
+Fri Nov 23 02:40:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/cgi/core.rb: Documentation for CGI#header alias
+	  Based on a patch by Marcus Stollsteimer
+	  [ruby-core:49585] [Bug #7405]
+
+Thu Nov 22 23:48:10 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (is_swept_object): extract from is_dead_object().
+
+	* gc.c (rb_gcdebug_print_obj_condition): add the function for debug.
+	  This function shows some conditions of given object (e.g.,
+	  marked, in heap, swept).
+
+	* gc.c (rb_gcdebug_sentinel): add the function for debug.
+	  This function allow check to inadvertently free up an object.
+
+Thu Nov 22 23:45:18 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* array.c (rb_ary_shared_with_p): fix cache validity check.
+	  If #pop or #shift has been called against $: or $", the array will
+	  be still shared with the snapshot. We check array length for cache
+	  validity.
+	  [ruby-core:49518] [Bug #7383]
+
+	* test/ruby/test_require.rb
+	  (TestRequire#test_require_with_array_pop,
+	   TestRequire#test_require_with_array_shift): add tests for above.
+
+Thu Nov 22 21:48:48 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* common.mk, win32/Makefile.sub (probes.dmyh): now be made in current
+	  (=build) directory if build from the repository.
+
+Thu Nov 22 21:34:51 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* test/ruby/test_rubyoptions.rb: added a test.
+
+Thu Nov 22 20:32:07 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* complex.c (string_to_c_strict, string_to_c): check NUL.
+	* rational.c (string_to_r_strict, string_to_r): ditto.
+
+Thu Nov 22 20:21:45 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* Makefile.in (.dmyh.h): removed $(VPATH). GNU make don't
+	  recognize suffix rule with VPATH.
+
+Thu Nov 22 18:11:27 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* common.mk, Makefile.in, win32/Makefile.sub (.dmyh.h): nmake merges
+	  explicit rules for same target, but not merges explicit rules and
+	  implicit rules -- always explicit rules win.  So, need to add an
+	  explicit rule for probes.h.  [Bug #7421] [ruby-core:49839]
+
+Thu Nov 22 18:01:28 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* Makefile.in (probes.o): add -C to ignore #include in probes.d.
+
+	* probes.d: include vm_opts.h instead of vm_core.h.
+
+	* vm_opts.h (VM_COLLECT_USAGE_DETAILS): move definition from vm_core.h.
+
+Thu Nov 22 17:45:17 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/nkf/nkf-utf8: Merge b0a6577a521d1bba5e19853f95d5c4b9be1072b5.
+	  Support JIS X 0213 and some bugfixes.
+
+Thu Nov 22 17:39:37 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* tool/gen_dummy_probes.rb: don't change #include, #if and #endif
+	  lines. [Bug #7370]
+
+Thu Nov 22 16:58:26 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* Makefile.in: run preprocessor when making probe.h
+	* probes.d: define probe insn and insn__operand only when
+	  VM_COLLECT_USAGE_DETAILS is 1. [Bug #7370]
+
+Thu Nov 22 16:20:49 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* vm.c: Don't define vm_collect_usage_operand() and
+	  static void vm_collect_usage_insn() when disabling
+	  VM_COLLECT_USAGE_DETAILS. (refix r37796)
+
+Thu Nov 22 15:26:02 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vm_insnhelper.h: partly revert r37631 (DTrace support).
+	  "vm usage information is always collected, so uncomment the
+	  functions." causes performance impact. [Bug #7370]
+	  Off course this revert disables related probes.
+
+Thu Nov 22 14:14:36 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* re.c (rb_memsearch_ss): Apply performance improvement to short
+	  byte array search for platforms without memmem(3).
+	  [Feature #6311] [ruby-dev:45530]
+
+Thu Nov 22 12:52:19 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* test/ruby/test_string.rb (TestString#test_index): Add some
+	  corner cases to tests for String#index, which might fail if ruby
+	  directly used a buggy memmem(3) implementation.
+
+Thu Nov 22 08:06:42 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* test/ruby/test_gc.rb (test_profiler_clear): fix wrong method
+	  calls [Bug #7419] [ruby-core:49828].
+
+Thu Nov 22 02:22:33 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* NEWS: edited (order etc).
+
+Wed Nov 21 22:52:59 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/io/wait/wait.c (io_wait_readable): add alias wait_readable.
+
+	* ext/io/wait/wait.c (io_wait_writable): this is easier to use than
+	  IO.select for a single IO object and is immune to the
+	  limitations/inefficiency of select() on platforms where poll/ppoll
+	  is available.  patched by Eric Wong.  [Feature #4646]
+
+Wed Nov 21 22:27:52 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (garbage_collect): remove a duplicative probe.
+
+Wed Nov 21 22:08:48 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (gc_profile_clear): realloc profile records if its size is
+	  higher than the threshold, GC_PROFILE_RECORD_DEFAULT_SIZE * 2.
+
+Wed Nov 21 21:53:29 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* complex.c (nucomp_to_c): added.
+
+Wed Nov 21 21:35:38 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* include/ruby/util.h: removed extra semicolon in definition of
+	  macro.
+	* compile.c: ditto.
+	* cont.c: ditto.
+	* math.c: ditto.
+	* node.c: ditto.
+	* parse.y: ditto.
+
+Wed Nov 21 18:46:37 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* rational.c (read_digits): due to a bit tighter rb_cstr_to_inum().
+
+Wed Nov 21 16:13:37 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/bm_so_nsieve_bits.rb: add an encoding pragma because
+	  this benchmark using strings (literals) as binary sequence.
+	  Now, they are UTF-8 strings. [ruby-dev:46578]
+
+Wed Nov 21 00:57:43 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* file.c (Init_File): null device definition uses rb_define_const
+	  instead of rb_file_const.
+
+Wed Nov 21 00:28:18 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* test/ruby/test_m17n_comb.rb (test_str_crypt): Use RbConfig to get
+	  libc's directory. Patched by Vit Ondruch [ruby-core:49763] [Bug #7312]
+
+Tue Nov 20 23:28:26 2012  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* marshal.c: add marshal readahead. marshalized Array, Hash and Struct
+	  have size at least number of its elements, marshal readahead will
+	  read the certain readable length and buffer when it needs more bytes.
+	  marshal readahead prevents many calls to IO#getbyte and IO#read,
+	  then it enables performance improvement.
+	  [ruby-dev:45637] [Feature #6440]
+
+Tue Nov 20 22:35:02 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* Makefile.in (.d.h): replace char * to const char * because somehow
+	  current dtrace removes const of function declaration in probes.d.
+
+Tue Nov 20 21:41:04 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/debug.h: introduced.
+	  Debugging/profiling features will be located.
+
+	* vm_trace.c: expose C-level TracePoint APIs.
+	  Note that they are experimental.
+
+	* vm_trace.c, include/ruby/debug.h: rename `rb_hook_flag_t'
+	  to `rb_event_hook_flag_t'.
+	  Macro names `RUBY_HOOK_FLAG_*' are also renamed to
+	  `RUBY_EVENT_HOOK_FLAG_*'.
+
+	* debug.h, vm_debug.h: rename debug.h to vm_debug.h.
+
+	* common.mk: ditto.
+
+	* debug.c, main.c, vm_core.h: ditto.
+
+Tue Nov 20 21:12:37 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in (RUBY_DTRACE_AVAILABLE): only check dtrace availability.
+
+	* configure.in (RUBY_DTRACE_POSTPROCESS): restore.
+
+Tue Nov 20 21:22:44 2012  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* test/win32ole/test_win32ole_type.rb (test_implemented_ole_types):
+	  IShellDispatch6 bundled in Windows 8. Thanks to phasis68 (Heesob
+	  Park).  [ruby-core:49580][Bug #7403]
+
+Tue Nov 20 21:06:41 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* complex.c: some improvements.
+	* rational.c: ditto.
+
+Tue Nov 20 21:01:16 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (incs): BSD make cannot deal with non-prefixed dependency
+	  and prefixed target.
+
+Tue Nov 20 20:10:23 2012  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* array.c (rb_ary_bsearch): fix rdoc bug (O(n log n) -> O(log n)).
+	  Patch by Charlie Somerville.  [ruby-core:49661] [Bug #7409]
+
+	* range.c (range_bsearch): ditto.
+
+Tue Nov 20 19:02:44 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c: rename and add TracePoint APIs.
+	  (1) TracePoint.new(...){...} creates a new trace point
+	      but does not make it enable.
+	  (2) TracePoint.trace(...){...} creates a new trace point
+	      and enable it (same as old behavior).
+	  (3) TracePoint#enable make it enable (renamed from TracePoint#retrace).
+	      If block given, when enable only in block.
+	  (4) TracePoint#disable make it disable (renamed from TracePoint#untrace).
+	      If block given, when disable only in block.
+	  (5) TracePoint#enabled? returns this trace is enable or not.
+	  [Feature #6895]
+
+	* test/ruby/test_settracefunc.rb: add tests.
+
+Tue Nov 20 18:35:05 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c: add two methods:
+	  (1) TracePoint#return_value which returns return
+	      value on the :return and :c_return event.
+	  (2) TracePoint#raised_exception which returns raised exception
+	      value on the :raise event.
+	  Each methods raise RuntimeError if it is called at unsupported
+	  event.
+	  Please review and give us feedback until next preview
+	  release (Dec/2012) of Ruby 2.0.0.
+	  [Feature #6895]
+
+	* insns.def, vm.c, vm_eval.c, vm_insnhelper.c, eval.c, thread.c:
+	  ditto.
+
+	* vm_trace.c, vm_core.h: move definition of rb_trace_arg_t from
+	  vm_trace.c to vm_core.h.
+	  Caller fills rb_trace_arg_t and pass the pointer of this variable.
+
+	* test/ruby/test_settracefunc.rb: fix tests to test this change.
+
+Tue Nov 20 17:31:12 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: fix dtrace didn't work on darwin.
+
+	* configure.in (RUBY_DTRACE_AVAILABLE): unify RUBY_DTRACE_POSTPROCESS
+	  and RUBY_DTRACE_BSD_BROKEN.
+
+Tue Nov 20 15:20:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* file.c (File.extname): Documentation for extname on dotfiles and
+	files ending with a dot. Also, added example for this.
+	[ruby-core:47852] [Bug #7112]
+
+Tue Nov 20 14:19:20 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/ruby/test_signal.rb (TestSignal#test_signame): fix windows
+	  test failure. Process.kill on windows can't send a signal to
+	  another process.
+
+Tue Nov 20 13:58:11 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (Init_IO): moved all rb_file_const() into file.c.
+	* file.c (Init_File): replace with rb_file_const() with
+	  rb_define_const() because RDoc don't care rb_file_const.
+	  [Bug #5530]
+
+Tue Nov 20 12:35:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ruby.c (usage_msg): Fix typo [ruby-core:49205] [Bug #7327]
+
+Tue Nov 20 12:35:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* file.c (File::NULL): Document File::NULL constant
+	  [ruby-core:49384] [Bug #7365]
+
+Tue Nov 20 12:05:15 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_read): Windows 8 fixed one of a bug of console
+	  API.
+	  based on the patch by Heesob Park at [ruby-core:49479] [Bug #7379]
+
+Tue Nov 20 11:14:33 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in (--enable-dtrace): always call RUBY_DTRACE_BSD_BROKEN
+	  for portability.
+	  As the note, FreeBSD 8 has DTrace as the optional
+	  feature (it is enabled by the build option), but doesn't have USDT.
+	  FreeBSD 9 has USDT but they are still optional. FreeBSD 10 will
+	  enable them by default.
+	  The variable $rb_cv_prog_dtrace_g is "yes" only on FreeBSD 9 with
+	  optional DTrace or FreeBSD 10. If it is "no", you cannot know
+	  whether it doesn't need -G or DTrace is disabled. (by checking
+	  error code, you can know)
+
+Mon Nov 19 22:55:48 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* configure.in (--enable-dtrace): change help message
+
+Tue Nov 20 11:05:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/tracer.rb (Tracer.trace_func): printf to stdout
+	  Patch by Michal Fojtik [ruby-core:45219] [Bug #6490]
+
+Mon Nov 19 21:24:18 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* vm_dump.c: not to include probes.h because the code does not depend
+	  on it.
+	* common.mk (vm_dump.$(OBJEXT)): remove dependency on probes.h
+
+Tue Nov 20 10:14:22 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_thread_s_check_interrupt): removed redundant
+	  GET_THREAD().
+
+Tue Nov 20 10:12:46 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_threadptr_async_errinfo_active_p): added a small
+	  comment.
+
+Tue Nov 20 10:05:56 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_thread_blocking_region_end): replaced GET_THREAD()
+	  with ruby_thread_from_native(). We don't have GVL here.
+
+Tue Nov 20 09:56:15 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_threadptr_execute_interrupts) removed.
+	* thread.c (rb_threadptr_execute_interrupts_common) renamed to
+	  rb_threadptr_execute_interrupts. I.e. unified
+	  rb_threadptr_execute_interrupts and rb_threadptr_execute_interrupts_common.
+	* thread.c (rb_thread_schedule, rb_thread_execute_interrupts) s/_common//.
+
+Tue Nov 20 09:48:34 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* signal.c (rb_get_next_signal): removed pointless signal
+	  disabling. pthread_sigmask() only changes current thread
+	  mask.
+
+Tue Nov 20 09:36:55 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* signal.c (install_sighandler): added comments why we need
+	  rb_disable_interrupt().
+
+Tue Nov 20 09:31:33 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* signal.c (rb_disable_interrupt, rb_enable_interrupt): removed
+	  USE_TRAP_MASK.
+	* signal.c (trap_arg, trap_ensure): removed.
+	* signal.c (trap, sig_trap): removed pointless signal disabling.
+	  We don't need it because we no longer run trap handler on signal
+	  handler context.
+
+Tue Nov 20 09:20:49 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* prelude.rb: Moved Mutex#synchronize to
+	* thread.c (rb_mutex_synchronize_m): here. [Bug #4266]
+
+Tue Nov 20 08:36:15 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* signal.c (sig_signame): implements Signal.signame method
+	[Feature #5613]
+	* test/ruby/test_signal.rb (test_signame): adds test for above
+	* NEWS: add an item about above
+
+Mon Nov 19 16:30:59 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* struct.c (rb_struct_each_pair): yield associated pairs so that
+	  an unsplat argument can get both, for consistency with Hash,
+	  OpenStruct, and etc.  [ruby-dev:46533] [Bug #7382]
+
+Mon Nov 19 16:17:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (LIBS): libelf is need on only FreeBSD.
+
+Mon Nov 19 16:08:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (RUBYLIB): purelib option in runruby.rb is deprecated
+	  since r28841, so set to an empty list to get rid of a bogus path in
+	  child processes, which caused an insecure operation exception in
+	  test/ruby/test_encoding.rb:test_unsafe.
+
+Mon Nov 19 15:40:50 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* .travis.yml (script): add OPTS=-v, requested by @_ko1.
+
+Mon Nov 19 15:09:07 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: fix didn't enable_dtrace=yes on auto.
+
+	* configure.in: see enable_dtrace for adding libelf on FreeBSD.
+
+	* common.mk: VPATH is not needed.
+
+Mon Nov 19 14:55:51 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* thread.c: add `Thread#backtrace_locations' method.
+	  This method is similar to `caller_locations' method for
+	  specific method.
+	  And fix to accept `level' and `n' parameters for `Thread#backtrace'
+	  and `Thread#backtrace_locations'.
+	  `caller' (and `caller_locations') do not return `caller' method
+	  frame.
+	  However, `Thread#backtrace' (and `Thread#backtrace_locations')
+	  return `Thread#backtrace' method frame itself
+	  if `Thread.current.backtrace' was called.
+
+	* vm_backtrace.c: ditto.
+
+	* internal.h: ditto.
+
+	* test/ruby/test_backtrace.rb: add tests.
+
+Mon Nov 19 14:54:32 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* Makefile.in, common.mk (probes.h): moved to common.mk and changed to
+	  see $(srcdir).
+
+	* common.mk (probes.dmyh): now created it on $(srcdir) always.
+
+	* win32/Makefile.sub (.SUFFIXES): removed common suffix.
+
+Mon Nov 19 10:00:10 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* Makefile.in (.SUFFIX): bsdmake needs .SUFFIX is defined before use.
+
+	* common.mk: fix path of probes.dmyh.
+
+	* common.mk (vm_dump.o): depend probes.h.
+
+	* configure.in: FreeBSD's USDT requires libelf.
+
+Mon Nov 19 01:11:59 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* vm_core.h, probes_helper.h (RUBY_DTRACE_FUNC_ENTRY_HOOK,
+	  RUBY_DTRACE_FUNC_RETURN_HOOK): move from vm_core.h to new file
+	  probes_helper.h for narrowing dependency to probes.h.
+	* common.mk (VM_CORE_H_INCLUDES): remove dependency to probes.h.
+	* common.mk (vm.$(OBJEXT)): add dependency to probes_helper.h.
+	* vm.c, vm_insnhelper.c: include probes_helper.h.
+
+Sun Nov 18 16:33:00 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* configure.in, Makefile.in, common.mk: support DTrace on Solaris 10,
+	  based on r26235 by Yugui. On Solaris 10, low optimization level
+	  may also be needed, e.g. optflags="-xO1" or "-xO0" with Oracle
+	  SolarisStudio 12.3 cc.
+
+	* configure.in (--enable-dtrace): new option to enable/disable
+	  DTrace support. By default, trying to enable if dtrace command
+	  is found on the system. It is disabled when cross compiling.
+
+	* configure.in (RUBY_DTRACE_POSTPROCESS): new macro. checks whether
+	  the dtrace on the system needs postprocessing with "dtrace -G".
+	  The postprocessing is needed on Solaris 10 and other platforms.
+
+	* configure.in (RUBY_DTRACE_BSD_BROKEN): new macro. checks whether
+	  the dtrace supports USDT.
+
+	* configure.in (DTRACE): move after RUBY_DTRACE_POSTPROCESS.
+
+	* configure.in (LD): On Solaris, /usr/ccs/bin/ld is preferred.
+
+	* configure.in, Makefile.in, common.mk (DTRACE_OBJ): new macro for
+	  DTrace probe object generated by postprocessing with "dtrace -G".
+
+	* Makefile.in, common.mk (probes.$(OBJEXT)): DTrace probe object
+	  generated by the postprocessing. New file probes.stamp is for
+	  rebuilding related objects that may be modified by "dtrace -G".
+
+	* configure.in, Makefile.in, common.mk (DTRACE_GLOMMED_OBJ): new
+	  macro for DTrace static library hacks.
+
+	* configure.in, Makefile.in (LIBRUBY_A_OBJS): ditto.
+
+	* Makefile.in, common.mk (ruby-glommed.$(OBJEXT)): new target with
+	  rule for DTrace static library hacks.
+
+	* common.mk (DTRACE_DEPENDENT_OBJS): objects depended on probes.h.
+
+Sun Nov 18 09:31:47 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* complex.c (read_comp): mathn compliant.
+	* rational.c (read_num): ditto.
+
+Sun Nov 18 02:50:12 2012  Luis Lavena <luislavena@gmail.com>
+
+	* win32/file.c (replace_to_long_name): correct logic around wildcard
+	  characters detection and ensure wide-chars are used as pattern.
+	  [ruby-core:49451] [Bug #7374]
+
+Sun Nov 18 02:02:46 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* complex.c (read_comp): modified handling of polar form.
+
+Sun Nov 18 00:50:44 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* complex.c (read_comp): fixed handling of polar form.
+
+Sun Nov 18 00:14:46 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* complex.c (string_to_c_strict, string_to_c): rewrote without regexp.
+	* rational.c (string_to_r_strict, string_to_r): ditto.
+
+Sat Nov 17 23:53:05 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* complex.c (make_patterns): should not accept extra sign.
+
+Sat Nov 17 21:45:12  Luis Lavena  <luislavena@gmail.com>
+
+	* win32/file.c (replace_to_long_name): skip expansion for all wildcard
+	  characters.
+	  [ruby-core:49451] [Bug #7374]
+
+	* test/ruby/test_file_exhaustive.rb: add more assertions to test.
+
+Sat Nov 17 12:14:50 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: use literal YAML style
+	  when emitting multi-line strings. Thanks @atambo
+
+	* test/psych/test_yaml.rb: test for change.
+
+Sat Nov 17 12:03:41 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/scalar_scanner.rb: avoid raising exceptions when
+	  parsing Floats and Integers. Thanks riffraff [ruby-core:44426]
+	* test/psych/test_numeric.rb: associated test
+
+Sat Nov 17 11:34:31 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* st.c (st_update): pass the key in st_table so that we can free
+	  memory of the key in st_table when deleting.
+	  [ruby-core:49220] [Bug #7330]
+
+	* test/-ext-/st/test_update.rb
+	  (Bug::StTable#test_pass_objects_in_st_table): add a test.
+
+Sat Nov 17 11:26:36 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/core_ext.rb: move Kernel#y so that it can
+	  manually be required as 'psych/y'.
+
+	* ext/psych/lib/psych/y.rb: ditto
+
+Sat Nov 17 08:13:48 2012  Benoit Daloze  <eregontp@gmail.com>
+
+	* lib/abbrev.rb: fix r37113. Correct examples, fix style
+	  and show explicit dependency (require 'abbrev').
+
+Sat Nov 17 07:35:15 2012  Luis Lavena  <luislavena@gmail.com>
+
+	* win32/file.c (replace_to_long_name): skip automatic path expansion
+	  when wildcard character is used.  [ruby-core:49451] [Bug #7374]
+
+	* test/ruby/test_file_exhaustive.rb: add a test for above.
+
+Sat Nov 17 00:50:23 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* marshal.c (w_object): add flonum to arg->data to keep reference index
+	  consistency. [ruby-core:49323] [Bug #7348]
+
+	* test/ruby/test_marshal.rb: add a test for above.
+
+Sat Nov 17 00:40:25 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (incs): dist files need probes.dmyh.
+
+	* common.mk (probes.dmyh): depends on generator script.
+
+	* Makefile.in, common.mk, configure.in, win32/Makefile.sub (probes.h):
+	  select generating with dtrace or copying dummy file by suffix rules.
+
+Fri Nov 16 19:24:10 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* thread.c (rb_thread_call_without_gvl2): change the parameter of
+	  `func' from `int *skip_interrupt' to `VALUE *flags'.
+	  If (flags & RUBY_CALL_WO_GVL_FLAG_SKIP_CHECK_INTS) is not zero,
+	  then skip checking interrupt.
+	  [ruby-core:46547]
+
+	* include/ruby/thread.h: ditto.
+
+Fri Nov 16 18:59:05 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* Makefile.in (no-dtrace-probes.h): dmyprobes.h is in srcdir.
+
+	* common.mk (dmyprobes.h): ditto.
+
+Fri Nov 16 17:57:15 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* Makefile.in (probes.h): split build commands for dtrace-available
+	  and unavailable platforms.
+
+	* Makefile.in (incs): probes.h is a platform dependent file, so it
+	  cannot be a part of prereq target.  move it to all-incs.
+
+	* configure.in (DTRACE): move after AC_PROG_CC since cross_compiling
+	  is set in it.
+
+	* configure.in (DTRACE): ignore non-prefixed version if
+	  cross-compiling.
+
+	* Makefile.in, win32/Makefile.sub (probes.h): fix copying dmyprobes.h
+	  path when outplace-build.
+
+Fri Nov 16 15:27:36 2012  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* lib/net/pop.rb (POP3.certs): fix typo in comment.
+	  patch from no6v (Nobuhiro IMAI) <nov@yo.rim.or.jp>.
+	  [ruby-dev:46519] [Bug #7355]
+
+Fri Nov 16 12:36:47 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* test/rake/helper.rb (Rake::TestCase#setup): revert r37669.
+	  @orig_PWD should be the original pwd.
+
+	* test/rake/test_*.rb: don't use @orig_PWD to load libraries.
+	  It should be specified with relative path from the file.
+
+Fri Nov 16 10:22:52 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* test/rake/helper.rb (Rake::TestCase#setup): @orig_PWD shouldn't be
+	  Dir.pwd when the build directory is different from source directory.
+
+Fri Nov 16 09:41:08 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/rake/version.rb:  workaround fix to build. see #7366
+	  [ruby-dev:46522]
+
+Fri Nov 16 07:23:18 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rake*:  Updated to rake 0.9.4
+	  http://rake.rubyforge.org/doc/release_notes/rake-0_9_4_rdoc.html for
+	  a list of changes in 0.9.4.
+
+	* test/rake*:  ditto
+
+	* NEWS:  ditto
+
+Fri Nov 16 06:58:52 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rake*:  Updated to rake 0.9.3.  See
+	  http://rake.rubyforge.org/doc/release_notes/rake-0_9_3_rdoc.html for
+	  a list of changes in 0.9.3.
+
+	* test/rake*:  ditto
+
+	* bin/rake:  ditto
+
+	* NEWS:  ditto
+
+Thu Nov 15 22:39:32 2012  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* range.c (range_bsearch): fix some bugs: a documentation bug, a wrong
+	  condition, missed break in switch/case, and workaround for GCC
+	  optimization. See [ruby-core:49364] in detail.  A great patch from
+	  Heesob Park. [Bug #7352] [Feature #4766]
+
+	* array.c (rb_ary_bsearch): fix similar bug (missed break).
+
+	* test/ruby/test_range.rb: add two test cases for above.
+
+Thu Nov 15 22:41:57 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_exec.h (GENTRY): GENTRY should be pointer size.
+	  A patch by yoshidam (Yoshida Masato) [Bug #7332].
+
+Thu Nov 15 13:20:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* man/erb.1: Fix grammar and copyright dates
+	* man/goruby.1: ditto
+	* man/irb.1: ditto
+	* man/rake.1: ditto
+	* man/ri.1: ditto
+	* man/ruby.1: ditto
+	  Patch by Arthur Gunn
+	  [Fixes Github #210]
+
+Thu Nov 15 11:35:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* man/ruby.1: Grammar edits for man page
+	  Based on a patch by Michael Endsley [Fixes Github #183]
+
+Thu Nov 15 00:47:20 2012  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* array.c (rb_ary_bsearch): add Array#bsearch for binary search.
+	  [ruby-core:36390] [Feature #4766]
+
+	* test/ruby/test_array.rb: add a test for above.
+
+	* range.c (range_bsearch): add Range#bsearch for binary search.
+	  [ruby-core:36390] [Feature #4766]
+
+	* test/ruby/test_range.rb: add a test for above
+
+	* NEWS: added the two new methods.
+
+Wed Nov 14 13:25:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/fileutils.rb (chmod): Add "X" to modes, convert format to table
+	  [ruby-core:48965] [Bug #7288]
+
+Wed Nov 14 11:51:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/csv.rb (init_comments): Document private method #init_comments.
+	  Based on a patch from Vincent Batts [ruby-core:49172] [Bug #7319]
+
+Wed Nov 14 00:54:00 2012  Kenta Murata  <mrkn@mrkn.jp>
+
+	* Makefile.in (probes.h): create from probes.d
+
+Tue Nov 13 18:44:01 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (vm_call_cfunc_with_frame): don't use ci after
+	  EXEC_EVENT_HOOK because ci can be overridden.
+
+	* vm_eval.c: ditto.
+
+	* method.h: change invoker's parameters types.
+
+	* vm_method.c (call_cfunc_invoker_func): ditto.
+
+Tue Nov 13 18:01:54 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (rb_mod_using): raise an ArgumentError if cyclic using is
+	  detected.  based on the patch by Charlie Somerville.
+	  [ruby-core:49092] Bug #7308
+
+	* test/ruby/test_refinement.rb: related test.
+
+Tue Nov 13 17:40:04 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* common.mk (vm_insnhelper.c): this target is useless and causes
+	  ruby always need rebuild.
+
+Tue Nov 13 17:35:49 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (insn_data_to_s_detail): remove debug lines.
+
+Tue Nov 13 17:28:47 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (vm_caller_setup_args): save and restore
+	  ci->argc and ci->blockptr before and after method invocations
+	  because these method dispatches can override call_info.
+
+	* bootstraptest/test_method.rb: add tests for this fix.
+
+Tue Nov 13 16:38:02 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* common.mk (dmyprobes.h): always create for make dist.
+
+	* Makefile.in (probes.h): create or copy dmyprobes.h
+
+	* win32/Makefile.sub: only do copy dmyprobes.h.
+
+Tue Nov 13 15:37:21 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* Makefile.in (.SUFFIX): .SUFFIX is needed here for .d.h on bsd make.
+
+Tue Nov 13 15:34:35 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* common.mk Makefile.in win32/Makefile.sub (.d.h): it's not common.
+
+Tue Nov 13 12:27:11 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: disable dtrace because it doesn't work on FreeBSD.
+
+	* common.mk (clean-local): rm probes.h.
+
+	* common.mk (parse.o): depend $(PROBES_H_INCLUDES).
+
+	* common.mk (.d.h): moved from Makefile.in and use BASERUBY.
+
+	* tool/gen_dummy_probes.rb: reimplemented with ruby because sed is not
+	  available on Windows Microsoft VC++ environment.
+
+Tue Nov 13 12:30:26 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/README.win32: added mention about build directory.  currently
+	  we can not build ruby in win32 directory.  this problem is reported
+	  by Masahiro Kitajima <katonbo@katontech.com>.
+
+Tue Nov 13 11:03:47 2012  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* re.c (rb_memsearch_ss): performance improvement by using memmem(3) if
+	  possible. [ruby-dev:45530] [Feature #6311]
+
+	* configure.in: check existence of memmem(3) and that it is not broken.
+
+Tue Nov 13 06:50:02 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* probes.d: add DTrace probe declarations. [ruby-core:27448]
+
+	* array.c (empty_ary_alloc, ary_new): added array create DTrace probe.
+
+	* compile.c (rb_insns_name): allowing DTrace probes to access
+	  instruction sequence name.
+
+	* Makefile.in: translate probes.d file to appropriate header file.
+
+	* common.mk: declare dependencies on the DTrace header.
+
+	* configure.in: add a test for existence of DTrace.
+
+	* eval.c (setup_exception): add a probe for when an exception is
+	  raised.
+
+	* gc.c: Add DTrace probes for mark begin and end, and sweep begin and
+	  end.
+
+	* hash.c (empty_hash_alloc): Add a probe for hash allocation.
+
+	* insns.def: Add probes for function entry and return.
+
+	* internal.h: function declaration for compile.c change.
+
+	* load.c (rb_f_load): add probes for `load` entry and exit, require
+	  entry and exit, and wrapping search_required for load path search.
+
+	* object.c (rb_obj_alloc): added a probe for general object creation.
+
+	* parse.y (yycompile0): added a probe around parse and compile phase.
+
+	* string.c (empty_str_alloc, str_new): DTrace probes for string
+	  allocation.
+
+	* test/dtrace/*: tests for DTrace probes.
+
+	* vm.c (vm_invoke_proc): add probes for function return on exception
+	  raise, hash create, and instruction sequence execution.
+
+	* vm_core.h: add probe declarations for function entry and exit.
+
+	* vm_dump.c: add probes header file.
+
+	* vm_eval.c (vm_call0_cfunc, vm_call0_cfunc_with_frame): add probe on
+	  function entry and return.
+
+	* vm_exec.c: expose instruction number to instruction name function.
+
+	* vm_insnhelper.c: add function entry and exit probes for cfunc
+	  methods.
+
+	* vm_insnhelper.h: vm usage information is always collected, so
+	  uncomment the functions.
+
+Mon Nov 12 19:14:50 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* configure.in (isinf, isnan): isinf() and isnan() are macros on
+	  DragonFly which cannot be found by AC_REPLACE_FUNCS().  This
+	  workaround enforces the fact that they exist on DragonFly.
+
+Mon Nov 12 15:59:38 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_core.h (rb_call_info_t::refinements), compile.c (new_callinfo),
+	  vm_insnhelper.c (vm_search_method): revert r37616 because it's too
+	  slow.  [ruby-dev:46477]
+
+	* test/ruby/test_refinement.rb (test_inline_method_cache): skip
+	  the test until the bug is fixed efficiently.
+
+Mon Nov 12 14:28:01 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/mkexports.rb (each_export): skip garbage generated by VS2012's
+	  nmake.
+	  reported and patched by Yoshida Masato at [Bug #7333] [ruby-dev:46484]
+
+Sun Nov 11 18:58:55 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* test/date/test_date_{parse,strptime}.rb: changed the format of
+	  some extra messages.
+
+Sun Nov 11 18:41:34 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_parse.c (date__parse): revised the tight parser
+	  (about handling of apostrophes).
+
+Sun Nov 11 15:39:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (rb_hash_s_create): just warn for wrong elements now.
+	  [ruby-dev:46440] [Bug #7300]
+
+	* hash.c (rb_hash_s_create): refine error messages.
+
+	* error.c (rb_builtin_class_name): share for above.
+
+Sun Nov 11 15:12:18 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (top_using): remove Kernel#using, and add main.using instead.
+
+	* test/ruby/test_refinement.rb: related test.
+
+Sun Nov 11 13:41:01 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (rb_using_refinement, rb_mod_using, f_using): clear method
+	  cache only when using is called explicitly.
+
+	* test/ruby/test_refinement.rb: related test.
+
+Sun Nov 11 12:56:34 2012  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* lib/pstore.rb (PStore): fix not to replace ThreadError raised in
+	  #transaction block with PStore::Error.
+	  [ruby-core:39238] [Bug #5269]
+
+Sun Nov 11 11:36:19 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_core.h (rb_call_info_t::refinements), compile.c (new_callinfo):
+	  add a new field for inline method cache.
+
+	* vm_insnhelper.c (vm_search_method): check rb_call_info_t::refinements
+	  not to confuse inline method cache when module_eval is used with
+	  refinements.
+
+	* test/ruby/test_refinement.rb: related test.
+
+Sun Nov 11 08:45:45 2012  Martin Duerst  <duerst@it.aoyama.ac.jp>
+
+	* ruby.c: removed a comma before "before"
+
+Sat Nov 10 23:02:31 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c: move immutable fields from struct heaps_slot and struct
+	  sorted_heaps_slot into struct heaps_header.
+	  Based on a patch from Sokolov Yura [Feature #6199][ruby-core:43592]
+
+Sat Nov 10 19:28:16 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* complex.c: modified doc.
+	* rational.c: ditto.
+
+Sat Nov 10 18:20:10 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_parse.c: edited about era.
+
+Sat Nov 10 12:13:41 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* tool/rbinstall.rb: Don't install *.gemspec under lib/.
+	  [ruby-core:48966] [Bug #7289]
+	  Reported by Vit Ondruch. Thanks!!!
+
+Sat Nov 10 00:49:26 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* ruby_atomic.h: renamed from atomic.h to avoid header file name
+	  conflict on Solaris 10. [ruby-dev:46414] [Bug #7287]
+
+	* gc.c, signal.c, vm_core.h, common.mk: reflect the rename from
+	  atomic.h to ruby_atomic.h.
+
+Sat Nov 10 00:46:57 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* atomic.h: Revert r37491 which is a temporary workaround.
+
+Sat Nov 10 00:33:31 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* siphash.h: check configure macros before include newer headers.
+
+Fri Nov  9 23:33:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/erb.rb (ERB#run, ERB#result): eval under isolated bindings for
+	  safe concurrent use.  [ruby-core:47638] [Bug #7046]
+
+Fri Nov  9 23:05:06 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* random.c (BYTE_ORDER): define using configured WORDS_BIGENDIAN.
+
+	* siphash.c (sip_init_state): use union to suppress warnings by gcc
+	  4.7.
+
+Fri Nov  9 19:40:03 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* array.c (rb_ary_splice): fix r37583 doesn't consider the case when
+	  beg > array length.
+
+Fri Nov  9 16:11:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* random.c (rb_memhash): use siphash.
+
+Fri Nov  9 16:08:46 2012  Sokolov Yura funny-falcon  <funny.falcon@gmail.com>
+
+	* array.c: speedup Array#unshift by using space in shared array.
+	  [Feature #6638]
+	  - when array owns its shared array (ARY_SHARED_NUM == 1), and there
+	    is enough space then try unshift values directly into shared
+	    array.
+	  - when resulting array is big (~>64 items) then make it shared with
+	    enough room for future #unshifts, and then insert into shared
+	    array.
+
+	* array.c (rb_ary_splice): use shared array in rb_ary_slice.
+	  [Feature #6638]
+	  - use ary_ensure_room_for_push when rb_ary_slice used to add at the
+	    end of array, cause rb_ary_concat use rb_ary_slice.
+
+	* array.c (ary_ensure_room_for_push): make array really suitable for
+	  queue.  [Feature #6638]
+	  when array is shared (which happens after Array#shift), and
+	  ARY_SHARED_NUM == 1 (which is very often when array used as queue),
+	  then make rb_ary_push push directly into shared array.
+
+	* array.c (rb_ary_modify): steal shared array's container when
+	  ARY_SHARED_NUM == 1.  [Feature #6638]
+	  - Do not allocate new memory in rb_ary_modify when ARY_SHARED_NUM == 1
+	    and length almost same.
+	  - Store ARY_CAPA instead of RARRAY_LEN in ary_make_shared, to make
+	    it useful.
+	  - Fix rb_ary_sort_bang accordantly.
+
+Fri Nov  9 16:00:00 2012  Zachary Scott  <zzak@zacharyscott.net>
+
+	* ext/bigdecimal/bigdecimal.c: Documentation for BigDecimal
+	  Based on a patch from Vincent Batts [ruby-core:49047] [Bug #7305]
+
+Fri Nov  9 15:25:42 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/shellwords.rb (Shellwords#shellescape): Add back my original
+	  real world example with some enhancement.
+
+	* lib/shellwords.rb (Shellwords#shelljoin): Undo part of the
+	  previous rdoc change.  This new example using a string-only
+	  array was not in line with the description.
+
+Fri Nov  9 12:58:13 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (rb_str_crypt): crypt(3) may return NULL.
+	  Latest glibc (2.16?) crypt(3) actually returns NULL. [Bug #7312]
+
+Fri Nov  9 12:07:06 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* include/ruby/ruby.h (alloca), eval_intern.h (alloca), gc.c
+	  (alloca): Make alloca() globally available by moving the
+	  ultimate ifdef's to ruby/ruby.h.  Gcc hides its builtin alloca()
+	  when compiling with -ansi, and linking thus fails on platforms
+	  that lack their own alloca() implementation in libc, which
+	  include OpenBSD and some ports of NetBSD.  We use alloca()
+	  everywhere including from within third party C extensions, so
+	  alloca() must be made globally available. [Bug #7307]
+
+	* addr2line.c (alloca): Replace the alloca() part with the
+	  ultimate ifdef's. [Bug #7307]
+
+Fri Nov  9 09:30:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* io.c (IO#new):
+	  Fix indentation from r37444
+	  [ruby-core:48052] [Bug #7179]
+
+Fri Nov  9 07:36:00 2012  Kenta Murata  <mrkn@mrkn.jp>
+
+	* bignum.c (bigmul0): enable big_mul_toom3.
+	  [ruby-core:48552] [Bug #7242]
+
+	* bignum.c (bigmul1_toom3): fix incorrect calculation.
+	  the patch is made by Heesob Park.
+	  [ruby-core:48552] [Bug #7242]
+
+Fri Nov  9 05:33:00 2012  Kenta Murata  <mrkn@mrkn.jp>
+
+	* bignum.c (bigmul0): disable big_mul_toom3 temporarily.
+	  [ruby-core:48552] [Bug #7242]
+
+	* test/ruby/test_bignum.rb (test_mul_large_numbers):
+	  add a test for bigmul1_toom3 suggested in [Bug #7242].
+
+Thu Nov  8 21:57:59 2012  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* re.c (rb_memsearch): performance improvement by using memchr().
+	  [ruby-dev:45397] [Feature #6173]
+
+Thu Nov  8 19:02:50 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/protocol.rb (Net::InternetMessageIO#each_crlf_line):
+	  treat \r as newline as mame pointed. [ruby-dev:46425] [Bug #7278]
+
+Thu Nov  8 11:32:11 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* configure.in (--with-opt-dir): Avoid nesting of double quotes
+	  inside backquotes, since some traditional shells like PD KSH
+	  (which OpenBSD's /bin/sh bases on) fail to parse them.
+
+Thu Nov  8 09:34:00 2012  Kenta Murata  <mrkn@cookpad.com>
+
+	* numeric.c: Add a caution that the results of the comparing
+	  operations of two NaNs are undefined.
+	  [#1720] [ruby-dev:38725] [ruby-core:36966]
+
+Thu Nov  8 04:45:21 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* include/ruby/intern.h: Restore rb_enumeratorize as it was before
+	  r37497 and introduce rb_enumeratorize_with_size instead. [#7302]
+
+	* enumerator.c: ditto.
+
+Wed Nov  7 15:22:37 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* numeric.c (ruby_float_step): fix r37514: it yielded with NaN
+	  if the unit is infinity.
+
+Wed Nov  7 15:46:12 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* lib/webrick.rb: fix typo. reported by Rohit Arondekar.
+	  https://github.com/ruby/ruby/pull/211
+
+Wed Nov  7 15:34:12 2012  Takeyuki FUJIOKA  <xibbar@ruby-lang.org>
+
+	* lib/cgi/core.rb: alias CGI#http_header to CGI#header.
+
+Wed Nov  7 12:49:39 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (rb_mod_refine): set RMODULE_IS_REFINEMENT to a created
+	  refinement module, and don't override method_added.
+
+	* vm_method.c (rb_method_entry_make): check redefinition of
+	  optimized methods when a method is added to a refinement module.
+	  [ruby-core:48970] [Bug #7290]
+
+	* test/ruby/test_refinement.rb: related test.
+
+Wed Nov  7 11:48:14 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* misc/ruby-additional.el (ruby-mode-set-encoding): now encoding needs
+	  to be set always explicitly actually.  [Feature #6679]
+
+Wed Nov  7 09:15:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_mod_const_get): avoid inadvertent symbol creation.
+
+Wed Nov  7 07:52:50 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enum.c (rb_enum_cycle_size): prefix with rb.
+
+Wed Nov  7 04:32:15 2012  Luis Lavena  <luislavena@gmail.com>
+
+	* test/ruby/test_file_exhaustive.rb: Remove FIXME skip on Windows
+	  specific test because the test in question was already fixed.
+
+Wed Nov  7 03:45:12 2012  Luis Lavena  <luislavena@gmail.com>
+
+	* ext/zlib/extconf.rb: Recognize zlibwapi as linking library.
+	  Patch by Daniel Berger.
+
+	  [ruby-core:44979] [Feature #6421]
+
+Wed Nov  7 02:06:40 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* enumerator.c: New method #size; constructor accepts size.
+	                Have #to_enum accept a block
+	                Warn when using deprecated form of constructor
+	                Support #size for enumerators created from enumerators
+	                Support for lazy.{map|flat_map|...}.size.
+
+	* include/ruby/intern.h: RETURN_SIZED_ENUMERATOR for support of
+	  sized enumerators.
+
+	* array.c: Support for various enumerator.size.
+
+	* enum.c: ditto.
+
+	* hash.c: ditto.
+
+	* numeric.c: ditto.
+
+	* range.c: ditto.
+
+	* string.c: ditto.
+
+	* struct.c: ditto.
+
+	* vm_eval.c: ditto.
+
+Tue Nov  6 20:40:28 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* object.c (rb_mod_const_get): Fix constant missing exception class
+	  and message to maintain backwards compatibility. Constant search
+	  should start at Object when constant starts with '::'
+
+	* test/ruby/test_module.rb: test for fixes
+
+Tue Nov  6 16:50:00 2012  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* lib/tempfile.rb (Tempfile#inspect): fix confusing #inspect.
+	  previous Tempfile#inspect says it is a File, but actually
+	  it is not a File.
+
+	    t = Tempfile.new("foo") #=> #<File:/tmp/foo20121106-31970-1ffbum0>
+	    t.is_a? File #=> false
+
+	  now Tempfile#inspect returns like:
+
+	    t = Tempfile.new("foo")
+	    #=> #<Tempfile:/tmp/foo20121106-31970-1ffbum0>
+
+	  [ruby-core:47544] [Bug #7027]
+
+Tue Nov  6 16:22:30 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* atomic.h: add #include <sys/atomic.h> for the workaround of
+	  header file name conflict of atomic.h with /usr/include/atomic.h
+	  on Solaris 10. [ruby-dev:46414] [Bug #7287]
+
+Tue Nov  6 14:38:00 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/win32ole/test_win32ole.rb: now source encoding is UTF-8, so
+	  binary strings in old scripts are dangerous.
+
+Tue Nov  6 14:25:09 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/protocol.rb (Net::InternetMessageIO#each_crlf_line):
+	  don't use /n in universal regexp. [ruby-dev:46394] [Bug #7278]
+
+Tue Nov  6 09:42:26 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (rb_str_b): Add String#b, returning a copied string
+	  whose encoding is ASCII-8BIT. [ruby-dev:45992] [Feature #6767]
+
+Tue Nov  6 09:37:57 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ruby.c (load_file_internal): set default source encoding as
+	  UTF-8 instead of US-ASCII. [ruby-core:46021] [Feature #6679]
+
+	* parse.y (parser_initialize): set default parser encoding as
+	  UTF-8 instead of US-ASCII.
+
+Tue Nov  6 05:48:06 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/ruby/test_require.rb
+	  (TestRequire#test_require_to_path_redefined_in_load_path,
+	   TestRequire#test_require_to_str_redefined_in_load_path):
+	  Suppress method redefined warning when test-all with RUBYOPT=-w.
+
+Thu Nov  8 00:24:14 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* ext/curses/view.rb: Do not fail if the file to view is shorter
+	  than the screen height.
+
+Mon Nov  5 11:40:00 2012  Mark Somerville  <mark@scottishclmibs.com>
+
+	* thread_pthread.c (rb_reserved_fd_p): fix typo in macro check
+	  that prevented the ifdef ever being true.
+	  [Bug #7281] [ruby-core:48940]
+
+Mon Nov  5 23:28:57 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* file.c (rb_get_path_check_to_string): extract from
+	  rb_get_path_check(). We change the spec not to call to_path of
+	  String object.
+
+	* file.c (rb_get_path_check_convert): extract from rb_get_path_check().
+
+	* file.c (rb_get_path_check): follow the above change.
+
+	* file.c (rb_file_expand_path_fast): remove check_expand_path_args().
+	  Instead we call it in load.c.
+
+	* file.c (rb_find_file_ext_safe): use rb_get_expanded_load_path() to
+	  reduce expand cost.
+
+	* file.c (rb_find_file_safe): ditto.
+
+	* internal.h (rb_get_expanded_load_path): add a declaration.
+
+	* internal.h (rb_get_path_check_to_string, rb_get_path_check_convert):
+	  add declarations.
+
+	* load.c (rb_construct_expanded_load_path): fix for compatibility.
+	  Same checks in rb_get_path_check() are added. We don't replace
+	  $LOAD_PATH and ensure that String object of $LOAD_PATH are frozen.
+	  We don't freeze non String object and expand it every time. We add
+	  arguments for expanding load path partially and checking if load path
+	  have relative paths or non String objects.
+
+	* load.c (load_path_getcwd): get current working directory for checking
+	  if it's changed when getting load path.
+
+	* load.c (rb_get_expanded_load_path): fix for rebuilding cache properly.
+	  We check if current working directory is changed and rebuild expanded
+	  load path cache. We expand paths which start with ~ (User HOME) and
+	  non String objects every time for compatibility. We make this
+	  accessible from other source files.
+
+	* load.c (rb_feature_provided): call rb_get_path() since we changed
+	  rb_file_expand_path_fast() not to call it.
+
+	* load.c (Init_load): initialize vm->load_path_check_cache.
+
+	* vm.c (rb_vm_mark): mark vm->load_path_check_cache for GC.
+
+	* vm_core.h (rb_vm_struct): add vm->load_path_check_cache to store data
+	  to check load path cache validity.
+
+	* test/ruby/test_require.rb (TestRequire): add tests for require
+	  compatibility related to cached expanded load path.
+	  [ruby-core:47970] [Bug #7158]
+
+Mon Nov  5 23:26:05 2012  Greg Price  <price@mit.edu>
+
+	* load.c (rb_get_expanded_load_path): cache the expanded load
+	  path.  This saves 4KB of allocation and some stats for every
+	  element of the load path (so nearly a MB in my Rails app)
+	  on every require.
+
+	* load.c (rb_construct_expanded_load_path): ensure that $LOAD_PATH
+	  entries are frozen strings.  The user must mutate $LOAD_PATH
+	  itself rather than its individual entries.
+
+	* vm_core.h (rb_vm_struct): add fields.
+
+	* vm.c (rb_vm_mark): mark new fields.
+
+	* ruby.c (process_options): modify $LOAD_PATH directly rather than
+	  its elements.
+	  Patch by Greg Price.
+	  [ruby-core:47970] [Bug #7158]
+
+Mon Nov  5 23:24:42 2012  Greg Price  <price@mit.edu>
+
+	* load.c (rb_feature_p, rb_provide_feature): index $LOADED_FEATURES
+	  so that require isn't so slow.
+
+	* load.c (rb_provide_feature, get_loaded_features_index): ensure
+	  that $LOADED_FEATURES entries are frozen strings.  The user
+	  must mutate $LOADED_FEATURES itself rather than its individual
+	  entries.
+
+	* load.c (reset_loaded_features_snapshot): add a new function to reset
+	  vm->loaded_features_snapshot.
+
+	* load.c (get_loaded_features_index_raw): add a new function to get
+	  the loaded-features index.
+
+	* load.c (features_index_add_single): add a new function to add to the
+	  loaded-features index a single feature.
+
+	* load.c (features_index_add): add a new function to add to the
+	  loaded-features index all the required entries for `feature`.
+
+	* vm_core.h (rb_vm_struct): add fields.
+
+	* vm.c (rb_vm_mark): mark new fields.
+
+	* include/ruby/intern.h (rb_hash_clear): declare function.
+
+	* hash.c (rb_hash_clear): make function non-static.
+	  Patch by Greg Price.
+	  [ruby-core:47970] [Bug #7158]
+
+Mon Nov  5 23:23:51 2012  Greg Price  <price@mit.edu>
+
+	* array.c (rb_ary_shared_with_p): new function.
+	  Expose whether two arrays are shared (read-only, C only).
+
+	* include/ruby/intern.h (rb_ary_shared_with_p): declare.
+	  Patch by Greg Price.
+	  [ruby-core:47970] [Bug #7158]
+
+Mon Nov  5 23:21:14 2012  Greg Price  <price@mit.edu>
+
+	* load.c (loaded_feature_path): clarify and briefly comment
+	  function.  These clarifications have no effect on the behavior
+	  of the function.
+
+	* load.c (rb_feature_p): explain the search loop.  Especially
+	  useful because the logic is complicated as described in the
+	  second paragraph.
+	  Patch by Greg Price.
+	  [ruby-core:47970] [Bug #7158]
+
+Mon Nov  5 22:45:03 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* ext/dl/win32/lib/Win32API.rb (Win32API#call): use 64bit pointer for x64
+	  Windows. This would fix
+	  TestSecureRandom#test_s_random_bytes_without_openssl error.
+	  [ruby-core:47451] [Bug #6990]
+
+Mon Nov  5 22:09:26 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* cygwin/GNUmakefile.in (uncommon.mk): link *.res.o.
+	  EXTOBJES is defined in uncommon.mk. *.res.o setting should be below
+	  uncommon.mk.
+	  [ruby-core:48858] [Bug #7277]
+
+Mon Nov  5 11:35:11 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread_pthread.c (native_thread_init, native_thread_destroy):
+	  removed HAVE_PTHREAD_CONDATTR_INIT check because this silly
+	  #ifdef makes use-uninitialized-var issue and (2) native_cond_initialize()
+	  already have a right platform and caller don't need any additional care.
+	  [Bug #6825]
+
+Mon Nov  5 10:57:59 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/cgi/core.rb: check if Tempfile is defined before use it.
+
+	* lib/cgi/core.rb: remove tempfiles only if tempfiles exist
+
+Mon Nov  5 12:17:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/uri/http.rb (URI::HTTP.build): Fix example
+	  Patch by Carina C. Zona
+	  [Fixes #209 Github]
+
+Mon Nov  5 09:55:05 2012  Takeyuki FUJIOKA  <xibbar@ruby-lang.org>
+
+	* lib/cgi/core.rb: remove tempfile more early.
+
+Sun Nov  4 20:29:46 2012  Takeyuki FUJIOKA  <xibbar@ruby-lang.org>
+
+	* lib/cgi.rb, lib/cgi/*/rb: rename CGI#header to CGI#http_header,
+	  add and update HTML5 tag generator.  [Bug #7110]
+	  Patch provided by Marcus Stollsteimer, thank you !
+
+Sun Nov  4 11:47:39 2012  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* lib/fileutils.rb (module FileUtils): repatch [ruby-core:39622]
+	  [Feature #5337]. improve performance of FileUtils.compare_stream.
+	  [ruby-core:47545] [Feature #7028]
+
+Sun Nov  4 11:27:54 2012  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (recursive_equal): fix to return true when self and other
+	  are resized to same size and the current index become out of
+	  range.
+
+	* test/ruby/test_array.rb: add a test for the above.
+
+Sun Nov  4 10:19:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (file_s_fnmatch): match with expanding braces if FNM_EXTGLOB
+	  is set.  [ruby-core:40037] [Feature #5422]
+
+Sat Nov  3 23:38:15 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* complex.c: modified doc.
+	* rational.c: ditto.
+
+Sat Nov  3 22:38:55 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: modified doc.
+
+Sat Nov  3 18:35:55 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm.c (rb_vm_rewrite_ep_in_errinfo, vm_rewrite_ep_in_errinfo):
+	  merge code and remove `rb_vm_rewrite_ep_in_errinfo'.
+
+Sat Nov  3 18:15:24 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm.c, proc.c: avoid unnecessary `rb_vm_rewrite_ep_in_errinfo'
+	  calls.
+
+Sat Nov  3 17:53:43 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* bin/testrb: Use only Test::Unit::AutoRunner in test-unit gem
+	  compatible API to be available by both test/unit bundled in Ruby
+	  and test-unit gem.
+	* lib/test/unit.rb (Test::Unit::AutoRunner): Move codes from testrb.
+
+Sat Nov  3 14:56:21 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_parse.c (parse_eu): should capture apostrophe too.
+
+Sat Nov  3 14:46:15 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_parse.c (date__parse): revised the tight parser.
+
+Sat Nov  3 14:43:42 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/xmldecl.rb (REXML::XMLDecl#content): Add missing \A
+	  and \z.
+
+Sat Nov  3 14:42:55 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/output.rb (REXML::Output#initialize): Use normalized
+	  encoding name.
+
+Sat Nov  3 14:41:17 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/output.rb (REXML::Output): Don't output BOM in middle
+	  of the output string.
+	* test/rexml/test_document.rb: Add a test for the above change.
+
+Sat Nov  3 14:09:55 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* NEWS: Add an item about REXML::Document#write.
+
+Sat Nov  3 13:46:49 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_document.rb: Fix tests that expect encoding name
+	  isn't normalized.
+
+Sat Nov  3 13:26:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* dir.c (Dir#glob):
+	  Documentation for pattern section, backslash subsection
+	  Patch by Eric Bouchut
+	  [ruby-core:48528] [Bug #7230]
+
+Sat Nov  3 13:26:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* io.c (IO#new):
+	  Documentation for IO#open modes and formatting
+	  [ruby-core:48052] [Bug #7179]
+
+Sat Nov  3 13:01:02 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_encoding.rb (EncodingTester#test_in_different_out):
+	  Fix a test that expects encoding in XML declaration is changed by
+	  Output's encoding. It is dropped feature.
+
+Sat Nov  3 12:49:45 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/document.rb (REXML::Document#write): Document encoding
+	  option. Now different encoding between XML file's encoding and
+	  XML declaration's encoding is support.
+	  [Feature #4872] (work in progress)
+	* lib/rexml/xmldecl.rb (REXML::XMLDecl#write): Always use XMLDecl's
+	  encoding.
+	* test/rexml/test_document.rb: Update tests for the above change.
+
+Sat Nov  3 12:18:35 2012  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (recursive_equal): fix not to make invalid pointers when
+	  self and other are resized to same size in #== of their elements.
+	  [ruby-dev:46373] [Feature #6177]
+
+Sat Nov  3 12:06:15 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_xml_declaration.rb (TestXmlDeclaration#test_*):
+	  Remove needless prefix from test names.
+
+Sat Nov  3 12:04:52 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_xml_declaration_parent_child.rb: Rename to ...
+	* test/rexml/test_xml_declaration.rb: ... this.
+
+Sat Nov  3 11:43:00 2012  Zachary Scott  <zachary@zacharyscott.net>
+
+	* hash.c (rb_hash_delete): Correct grammar
+	  Patch by Glenn Oppegard
+	  [Fixes #208 Github]
+
+Sat Nov  3 11:28:28 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* NEWS: add a news about GC::Profiler.raw_data.
+
+Sat Nov  3 11:01:32 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* NEWS: add a news about rb_newobj_of() and NEWOBJ_OF().
+
+Sat Nov  3 10:17:41 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* eval.c (f_current_dirname): add the new method for Kernel.
+	  This method almost same as File.dirname(__FILE__). One
+	  different behavior is it returns nil when __FILE__ returns nil.
+	  [Feature #3346]
+
+	* NEWS:  ditto
+
+	* test/ruby/test_method.rb: related test.
+
+Sat Nov  3 09:03:34 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* test/ruby/test_refinement.rb (test_new_method_by_send,
+	  test_new_method_by_method_object): add tests for Kernel#send and
+	  Kernel#method with refinements.
+
+	* test/ruby/test_refinement.rb (test_symbol_to_proc): add a test
+	  calling a proc created by Symbol#to_proc outside the scope where
+	  a refinement is closed over.
+
+Sat Nov  3 04:14:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm.c (rb_vm_rewrite_ep_in_errinfo): rewrite all catch points in
+	  errinfo, not only the topmost frame.  based on the patch by
+	  ktsj (Kazuki Tsujimoto) in [ruby-dev:45656]. [Bug #6460]
+
+Fri Nov  2 20:11:17 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#timestamp_file): remove @ which looks like
+	  configure variables.
+
+	* lib/mkmf.rb (MakeMakefile#timestamp_file): use .-. instead of !, a
+	  special character of NMAKE and BSD make.  [Bug #7265]
+
+Fri Nov  2 17:55:39 2012  Shota Fukumori  <sorah@tubusu.net>
+
+	* lib/test/unit.rb (_run_parallel): Delete status line before showing
+	  results. Patch by Hiroshi Shirosaki. [Bug #6897] [ruby-core:47250]
+
+	* lib/test/unit.rb (_run_parallel): Fix strange result when disabled retrying.
+	  Patch by Hiroshi Shirosaki. [Bug #6897] [ruby-core:47250]
+
+Fri Nov  2 17:52:12 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* object.c (rb_mod_to_s): Module#{to_s,inspect}, when invoked on
+	  a refinement, returns a string in the format #<refinement:C@M>,
+	  where C is a refined class and M is a module at which the refinement
+	  is defined.
+
+	* eval.c (rb_mod_refine): store information on a refinement for the
+	  above change.
+
+	* test/ruby/test_refinement.rb: related test.
+
+Fri Nov  2 16:57:52 2012  Shota Fukumori  <sorah@tubusu.net>
+
+	* vm_dump.c (rb_vm_bugreport): Because of many log directories,
+	  making directory lists readable.
+
+Fri Nov  2 16:44:00 2012  Kenta Murata  <mrkn@mrkn.jp>
+
+	* vm_dump.c (rb_vm_bugreport): add ~/Library/Logs/DiagnosticReports
+	  in the locations list of crash reports.
+
+Fri Nov  2 14:52:52 2012  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (recursive_equal): performance improvement by avoiding
+	  overhead to call rb_ary_elt().
+	  [ruby-dev:45412] [Feature #6177]
+
+Fri Nov  2 14:47:53 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* string.c (sym_to_proc, sym_call): A Proc created by Symbol#to_proc
+	  should close over the current refinements.
+	  [ruby-dev:46345] [Bug #7261]
+
+	* vm_eval.c (rb_call0, rb_search_method_entry,
+	  rb_funcall_passing_block_with_refinements): add a new argument
+	  `refinements' for the above changes.
+
+	* test/ruby/test_refinement.rb: related test.
+
+Fri Nov  2 08:24:28 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (top_define_method): new method, main.define_method.
+	  [ruby-core:45715] [Feature #6609]
+
+	* eval.c (top_include): fix a warning message, main is not a class or
+	  module.
+
+Fri Nov  2 04:41:33 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#timestamp_file): use ! instead of %, a GNU
+	  make special character.
+
+Fri Nov  2 04:40:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/test_process.rb (test_execopts_preserve_env_on_exec_failure):
+	  use never existing file in the current temporary directory.
+
+Fri Nov  2 04:23:20 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/merger.rb: add feature to tag preview/rc.
+
+Fri Nov  2 03:23:37 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/mkmf.rb: fix for if config["libdir"] is nil.
+
+Thu Nov  1 23:06:01 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/make-snapshot: fix wrong regexp for releasing preview.
+	  patched by mame.
+
+Thu Nov  1 22:27:11 2012  Koichi Sasada <ko1@atdot.net>
+
+	* NEWS: add a news about objspace,
+	  ObjectSpace.reachable_objects_from.
+
+Thu Nov  1 21:57:00 2012  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_new),
+	  test/bigdecimal/test_bigdecimal.rb:
+	  Fix exception message of BigDecimal constructor with a Float.
+
+Thu Nov  1 21:52:20 2012  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_add),
+	  test/bigdecimal/test_bigdecimal.rb:
+	  need to specify precision for converting Rational and Float.
+	  [ruby-core:48045] [Bug #7176]
+
+Thu Nov  1 21:42:20 2012  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* test/ruby/test_process.rb: Revert r37404.  My ubuntu box has
+	  actually the directory named "/nonexistent"...  Sorry.
+
+Thu Nov  1 21:28:28 2012  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* test/ruby/test_process.rb: Process.exec raised EACCES on Linux
+	  3.5.0-17-generic.  This is a temporal fix to rescue that exception.
+	  Needs kosaki's review.
+
+Thu Nov  1 21:19:56 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* iseq.c (set_relation): parent_iseq need to be set regardless iseq
+	  type.  fix r37397.
+
+Thu Nov  1 19:47:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread_pthread.c (RUBY_STACK_MIN): may not a compile time constant.
+	  fix r37079.  [ruby-dev:46322] [Bug #7247]
+
+Thu Nov  1 16:44:36 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* NEWS: add note for Module#refine, Module#refinements,
+	  Module#using, and Kernel#using.
+
+Thu Nov  1 14:41:47 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (rb_using_module): using should be used indirectly.
+	  [ruby-dev:46326] [Feature #7251]
+
+Wed Oct 31 18:17:38 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (gc_profile_record): don't define unused variables when
+	  GC_PROFILE_MORE_DETAIL is 0.
+
+Wed Oct 31 18:10:53 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (gc_prof_mark_timer_stop): count is not initialized.
+
+Wed Oct 31 09:28:24 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* thread.c (rb_thread_call_without_gvl2):  Note that ubf() may or may
+	  not be called with the GVL.  Hinted that rb_thread_call_with_gvl()
+	  can be used to access ruby functionality.
+
+Wed Oct 31 09:06:54 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* thread.c (rb_thread_call_without_gvl2):  Update documentation to
+	  natural English.
+	* thread.c (rb_thread_call_with_gvl):  ditto.
+
+Wed Oct 31 02:53:07 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/dl/lib/dl/struct.rb: fix strange require order. [ruby-dev:45702]
+
+	* ext/dl/lib/dl/value.rb: ditto
+
+	* test/dl/test_c_struct_entry.rb: remove strange require order from
+	  tests.
+
+	* test/dl/test_c_union_entity.rb: ditto
+
+Tue Oct 30 23:59:32 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (rb_mod_refine): fix the error message when no block is
+	  given.  [ruby-dev:46319] [Bug #7244]
+
+	* test/ruby/test_refinement.rb: related test.
+
+Tue Oct 30 19:27:48 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* process.c (redirect_dup2): set standard handles when new fd is stdio,
+	  because if there is no allocated console at the moment Windows does
+	  not automatically associate it for child process's standard handle.
+	  this is adhoc workaround.
+	  reported by Martin Thiede at [ruby-core:48542] [Bug #7239].
+
+	* io.c (rb_cloexec_dup2): ditto.
+
+Tue Oct 30 03:08:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/rbconfig/obsolete.rb (Config): re-introduce warnings for a
+	  lame-duck.  [ruby-core:46836] [Bug #6809]
+
+Tue Oct 30 02:20:10 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* thread.c: added Thread#thread_variable_(get|set),
+	  Thread#thread_variable?, and Thread#thread_variables for operating
+	  on variables that are local to threads. [ruby-core:47790]
+
+	* vm.c: ditto
+
+	* test/ruby/test_thread.rb: tests for thread variables.
+
+Mon Oct 29 18:22:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/stringio/stringio.c (strio_close): close separately per each
+	  instances, as well as IO.
+
+Mon Oct 29 10:22:00 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/handlers/recorder.rb: added a class for
+	  recording YAML parse and emit events.
+
+	* ext/psych/lib/psych/handler.rb: adding a list of events so that
+	  handler classes can more easily be meta-programmed.
+
+	* test/psych/handlers/test_recorder.rb: tests for the change.
+
+Mon Oct 29 05:48:52 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/ostruct.rb: Add [] and []=, base on a patch by Thomas Sawyer.
+	  Also accept {Open}Struct as argument to new.
+	  Add #eql?, #hash & #each_pair
+	  Protect new_ostruct_member
+
+Mon Oct 29 03:20:58 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb: Fix determinant_e [ruby-dev:46305] [Bug #7228]
+
+Sun Oct 28 23:52:25 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_document.rb: Add tests for parsing XML encoded
+	  by UTF-8 with BOM.
+
+Sun Oct 28 23:47:09 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/source.rb: Move encoding detection code to base class.
+	* lib/rexml/encoding.rb: Remove needless encoding detection code.
+
+Sun Oct 28 21:40:13 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/baseparser.rb: Fix a bug that UTF-8 is used
+	  for UTF-16XX encoded XML that doesn't have encoding="UTF-16" in
+	  XML declaration.
+	* test/rexml/test_document.rb: Add tests for the above change.
+
+Sun Oct 28 21:37:34 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_document.rb: Group tests that they parse
+	  UTF-16XX encoded XML that has encoding="UTF-16" in XML declaration.
+
+Sun Oct 28 21:25:11 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/source.rb (REXML::IOSource#initialize): Reduce
+	  @line_break initialize code. It should be done only in #encoding=.
+	* lib/rexml/parsers/baseparser.rb: Don't set UTF-16 encoding to
+	  source by encoding="UTF-16" in XML declaration because UTF-16XX
+	  source encoding should be set in Source#initialize or
+	  IOSource#initialize. They should handle BOM. Parser should not
+	  consider about it.
+
+Sun Oct 28 21:18:37 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_document.rb: Add tests for parsing XML encoded
+	  by UTF-16 with BOM.
+
+Sun Oct 28 19:12:11 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_parse.c (iso8601_{ext,bas}_time): should not match
+	  empty string.
+
+Sun Oct 28 18:51:33 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_parse.c (date__parse): revised the tight parser.
+
+Sun Oct 28 15:41:50 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/document.rb (REXML::Document#write): Add :encoding option
+	  to support custom XML encoding.
+	  [Feature #4872] (work in progress)
+	* test/rexml/test_document.rb: Add tests for the above change.
+
+Sun Oct 28 15:00:19 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/document.rb (REXML::Document#write): Remove needless
+	  indent in document.
+
+Sun Oct 28 14:59:14 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/document.rb (REXML::Document#write): Accept options
+	  Hash as argument.
+	* test/rexml/test_document.rb: Add tests for the above change.
+
+Sun Oct 28 14:09:44 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/document.rb (REXML::Document#write): Fix wrong usage
+	  in document.
+
+Sun Oct 28 14:03:48 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/document.rb (REXML::Document#write): Fix wrong method
+	  names in document.
+
+Sun Oct 28 10:12:15 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: `tree` should return the
+	  same thing on every call.
+
+	* test/psych/visitors/test_yaml_tree.rb: related test.
+
+Sun Oct 28 10:05:03 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: YAML Tree object should
+	  be able to take an emitter object as it's output.
+
+	* test/psych/visitors/test_yaml_tree.rb: related test.
+
+Sun Oct 28 08:23:16 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* bignum.c (bignew_1): Bignum instances are frozen.
+	  Feature #3222
+
+	* include/ruby/ruby.h: Fixnum instances are also frozen.
+
+	* class.c (singleton_class_of): check Bignum before
+	  singleton checking.
+
+	* test/ruby/test_bignum.rb: add a test.
+
+	* test/ruby/test_fixnum.rb: ditto.
+
+	* test/ruby/marshaltestlib.rb, test/ruby/test_eval.rb,
+	  test/ruby/test_object.rb: catch up above changes.
+
+Sun Oct 28 04:38:06 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (vm_define_method): remove type and frozen checking.
+	  Checking is done in `rb_singleton_class()'.
+
+Sun Oct 28 00:49:06 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (assign_in_cond): warn for static content object assignments
+	  in conditional statements.  [ruby-dev:43083] [Feature #4299]
+
+Sat Oct 27 23:33:41 2012  Benoit Daloze  <eregontp@gmail.com>
+
+	* gc.c (gc_profile_result, gc_profile_report): use internal structures
+	  to avoid allocations and progressively print the output for #report.
+	  [ruby-core:47163] [Bug #6865]
+
+Sat Oct 27 11:01:10 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* numeric.c (rb_float_new_in_heap), include/ruby/ruby.h:
+	  make all Float objects frozen.
+	  [ruby-dev:46081] [ruby-trunk - Feature #6936]
+	  Most part of patch by NARUSE, Yui  <naruse@ruby-lang.org>.
+
+	* class.c (singleton_class_of): raise TypeError when
+	  trying to define a singleton method on Float objects.
+
+	* vm.c (vm_define_method): ditto.
+
+	* test/ruby/marshaltestlib.rb: catch up above changes.
+
+	* test/ruby/test_class.rb: ditto.
+
+	* test/test_pp.rb: ditto.
+
+Sat Oct 27 10:50:53 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* object.c (rb_mod_const_get): make sure the constant name is
+	  converted to a string before searching. [ruby-core:48405]
+
+Sat Oct 27 10:12:13 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* iseq.c (rb_iseq_compile_with_option): Instead of testing
+	  respond_to, just check if the argument is actually a file,
+	  because by calling user-defined gets something weired can
+	  happen.  Patch by Glass_saga. [ruby-dev:40202] [Bug #2861]
+
+	* parse.y (ripper_initialize): ditto.
+
+Sat Oct 27 10:07:57 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (enum lex_state_e): [EXPERIMENTAL] lex_state as bit field /
+	  IS_lex_state() macro.  based on the patch by Dave B in
+	  [ruby-core:23503].  [Feature #1493]
+
+Sat Oct 27 10:05:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/win32.h (fstat): use _fstati64() instead of fstati64()
+	  on mingw32.
+
+Sat Oct 27 06:28:33 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* object.c (rb_mod_const_get): const_get accepts qualified constant
+	  strings.  e.g. Object.const_get("Foo::Bar::Baz") [ruby-core:41404]
+
+	* test/ruby/test_module.rb: tests for new behavior
+
+Fri Oct 26 13:24:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (literal_concat_gen): merge fixed strings across
+	  concatenated literals, after an interpolation.
+
+Thu Oct 25 17:48:54 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (has_redirection): should use shell (cmd.exe) when
+	  the commandline contains '&'.
+	  reported by Roger Pack at [ruby-core:47912] [Bug #7143], and
+	  patched by Heesob Park at [ruby-core:47931].
+
+Thu Oct 25 15:00:08 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h, class.c: remove (revert)
+	  `rb_add_method_cfunc_frameless()' API.
+	  This API is not mature to become an official API.
+	  For example, we can not use this API with
+	  `rb_define_private_method()'.
+
+	* method.h, vm_method.c (rb_add_method_cfunc_frameless): removed.
+
+Thu Oct 25 13:35:07 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* tool/mkconfig.rb: remove string literal concatenation.
+
+Wed Oct 24 18:49:16 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/objspace/objspace.c (type2sym, count_objects_size): use enum
+	  instead of size_t which may be larger than actual values.
+
+Wed Oct 24 17:41:24 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/driver.rb: add `-x' or `--exclude' option
+	  to specify exclude benchmark name pattern.
+	  You can specify "-x foo" if you want to exclude the benchmarks
+	  if the name of benchmark contains `foo'.
+
+Wed Oct 24 11:57:24 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (gc_prepare_free_objects): rename to match the behavior of
+	  this function.
+
+Wed Oct 24 11:55:19 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/objspace.c (reachable_object_from_i): change data
+	  structure of the result of reachable objects. Keys of table
+	  contains object_id of each reachable objects. Value of table
+	  is an object itself or an instance of InternalObjectWrapper.
+	  To avoid duplication, we use st_table and object_id keys.
+
+	* ext/objspace/objspace.c (type2sym): bug fix.
+	  Should use `i' instead of `type'.
+
+Wed Oct 24 10:33:09 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (garbage_collect, gc_marks): move the location of
+	  clear and restore rb_objspace_t::mark_func_data
+	  from garbage_collect() to gc_marks().
+
+Wed Oct 24 10:17:45 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/objspace.c (Init_objspace): add a new method
+	  `ObjectSpace::InternalObjectWrapper#internal_object_id' which returns
+	  an object id of a wrapped internal object.
+
+Wed Oct 24 08:55:04 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/objspace.c (ObjectSpace.reachable_objects_from):
+	  internal object support.
+	  If given object `obj' has references to internal objects
+	  (such as T_NODE objects), then this method returns instances of
+	  `ObjectSpace::InternalObjectWrapper' instead of that internal objects.
+	  This instance contains a reference to an internal object and you can
+	  check the type of internal object using
+	  `ObjectSpace::InternalObjectWrapper#type' method.
+	  Rdoc of `InternalObjectWrapper' is not prepared yet.
+
+	* gc.c (rb_objspace_reachable_objects_from), gc.h: change
+	  an interface of 'rb_objspace_reachable_objects_from()'
+
+	* gc.c, gc.h: add two APIs
+	  - rb_objspace_markable_object_p(obj): check markable or not.
+	  - rb_objspace_internal_object_p(obj): check internal or not.
+
+Wed Oct 24 05:52:36 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (vm_call_method): remove `default' and
+	  add a case for `VM_METHOD_TYPE_UNDEF'.
+
+Wed Oct 24 05:41:18 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* eval_error.c (error_print), vm_eval.c (eval_string_with_cref),
+	  vm_trace.c (rb_suppress_tracing): use TH_PUSH_TAG() instead of
+	  PUSH_TAG().
+
+Wed Oct 24 05:17:52 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_eval.c (vm_call0_body): remove RUBY_VM_CHECK_INTS()
+	  after method invocation using rb_call0().
+
+	* vm_eval.c (vm_call0_body): remove default section on top of
+	  switch statement and add cases for `VM_METHOD_TYPE_CFUNC_FRAMELESS'
+	  and `VM_METHOD_TYPE_UNDEF'.
+
+	* vm_eval.c (vm_call0_body): remove useless brackets.
+
+Tue Oct 23 22:34:49 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* thread.c (thread_raise_m):  check interrupts after Thread#raise
+	  if a target thread is the current thread because the behavior
+	  of Thread.current.raise is expected to perform same as
+	  Kernel.raise (by rubyspec).
+
+Tue Oct 23 17:08:39 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ruby.c (usage, process_options): show more info in --help.
+	  [EXPERIMENTAL] [ruby-core:48072] [Bug #7184]
+
+Tue Oct 23 14:20:43 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* misc/ruby-electric.el using variable `last-command-event' instead of
+	  obsolete `last-command-char', so that work with Emacs trunk.
+	  a patch by Victor Deryagin <vderyagin AT gmail.com>.
+
+Tue Oct 23 14:06:47 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (visibility_option): visibility attribute is not
+	  available before GCC 4, so do not use -fvisibility option in that
+	  case.  [ruby-core:48147] [Bug #7205]
+
+Tue Oct 23 12:57:29 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h, vm_insnhelper.c, vm_eval.c (OPT_CALL_CFUNC_WITHOUT_FRAME):
+	  add a new optimization and its macro `OPT_CALL_CFUNC_WITHOUT_FRAME'.
+	  This optimization makes all cfunc method calls `frameless', which
+	  is faster than ordinal cfunc method call.
+	  If `frame' is needed (for example, it calls another method with
+	  `rb_funcall()'), then build a frame. In other words, this
+	  optimization delays frame building.
+	  However, to delay the frame building, we need additional overheads:
+	    (1) Store the last call information.
+	    (2) Check the delayed frame building before the frame is needed.
+	    (3) Overhead to build a delayed frame.
+	  rb_thread_t::passed_ci is storage of delayed cfunc call information.
+	  (1) is lightweight because it is only 1 assignment to `passed_ci'.
+	  To achieve (2), we modify GET_THREAD() to check `passed_ci' every
+	  time. It causes 10% overhead on my environment.
+	  This optimization only works for cfunc methods which do not need
+	  their `frame'.
+	  After evaluation on my environment, this optimization does not
+	  effective every time. Because of this evaluation results, this
+	  optimization is disabled at default.
+
+	* vm_insnhelper.c, vm.c: add VM_PROFILE* macros to measure behaviour
+	  of VM internals. I will extend this feature.
+
+	* vm_method.c, method.h: change parameters of the `invoker' function.
+	  Receive `func' pointer as the first parameter.
+
+Tue Oct 23 06:21:05 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/parser.c: just get the constant defined in Ruby.
+
+	* ext/psych/lib/psych/syntax_error.rb: Psych::SyntaxError now inherits
+	  from StandardError rather than SyntaxError.  Thanks Eric Hodel!
+
+	* test/psych/test_exception.rb: tests for change.
+
+Tue Oct 23 06:17:36 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/scalar_scanner.rb: Cache symbols while
+	  tokenizing.  Thanks Kevin Menard!
+
+Tue Oct 23 06:15:40 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/scalar_scanner.rb: Updated the RegExp to catch
+	  Strings earlier in the tokenization process.  Thanks Kevin Menard!
+
+Tue Oct 23 06:12:39 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: Handle nil tags specially
+	  to avoid slow method_missing calls.  Thanks Kevin Menard!
+
+Tue Oct 23 06:07:57 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/scalar_scanner.rb: Ignore bad timestamps.  If
+	  something looks like a timestamp but has an invalid component, treat
+	  it as a string instead of throwing an ArgumentError.
+	  Thanks Rhett Sutphin!
+
+	* test/psych/test_scalar_scanner.rb: appropriate tests.
+
+Tue Oct 23 06:04:07 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/scalar_scanner.rb: Fix scalar_scanner to
+	  understand strings starting with an underscore and containing only
+	  digits.  Thanks Kelley Reynolds.
+
+	* test/psych/test_scalar_scanner.rb: test for fix
+
+Tue Oct 23 06:00:41 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb: Changed comment in psych.rb to update new
+	  home page for libyaml.  Thanks to Carolyn Ann.
+
+Sun Oct 21 19:12:59 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm_core.h (rb_vm_t::trace_running): add a new field
+	  `trace_running' to store vm global tracing status.
+
+	* vm_trace.c: fix SEGV bug. event_hook was free'd
+	  even when the hook is still used in another thread.
+	  [ruby-dev:46141] [Bug #7032]
+
+Sun Oct 21 19:12:42 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm_core.h (rb_vm_t::trace_flag): remove `trace_flag'
+	  which is no longer used.
+
+Sun Oct 21 18:34:27 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_parse.c (date__parse): uses more tight parser if
+	  defined TIGHT_PARSER.  now inactivated; because it introduces
+	  incompatibilities and it is a bit slow.
+
+Sat Oct 20 15:35:06 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* include/ruby/ruby.h: add C APIs.
+	  VALUE rb_newobj_of(VALUE klass, VALUE flags)
+	  #define NEWOBJ_OF(obj,type,klass,flags)
+	  These allow to change a allocation strategy depending on klass
+	  or flags.
+
+	* gc.c: ditto
+
+	* array.c: use new C API.
+	* bignum.c: ditto
+	* class.c: ditto
+	* complex.c: ditto
+	* ext/socket/ancdata.c: ditto
+	* ext/socket/option.c: ditto
+	* hash.c: ditto
+	* io.c: ditto
+	* marshal.c: ditto
+	* numeric.c: ditto
+	* object.c: ditto
+	* random.c: ditto
+	* range.c: ditto
+	* rational.c: ditto
+	* re.c: ditto
+	* string.c: ditto
+	* struct.c: ditto
+	  [Feature #7177][Feature #7047]
+
+Sat Oct 20 12:50:00 2012  Zachary Scott	<zachary@zacharyscott.net>
+
+	* ext/socket/socket.c: Documentation for Socket
+	  Based on a patch by David Albert
+	  [Bug #7105] [ruby-core:47828]
+
+Sat Oct 20 11:00:00 2012  Zachary Scott	<zachary@zacharyscott.net>
+
+	* lib/open-uri.rb: Documentation for OpenURI
+
+Sat Oct 20 06:18:34 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* hash.c (initialize_copy): unset the default proc if there isn't one
+	  for the target hash, call to_hash, check frozen status.
+
+Fri Oct 19 22:22:01 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm.c (rb_vm_jump_tag_but_local_jump): pass through thrown objects.
+	  [ruby-dev:46234] [Bug #7185]
+
+	* vm_eval.c (rb_eval_cmd): if state is non-zero, val should be nil and
+	  rb_vm_jump_tag_but_local_jump() just jump tag.
+
+Fri Oct 19 22:11:55 2012  Benoit Daloze  <eregontp@gmail.com>
+
+	* pack.c (pack_unpack): set encoding of the
+	  'H','h','B' and 'B' modifiers to US-ASCII.
+
+	* test/ruby/test_pack.rb: tests for the above.
+	  [ruby-core:47653][Bug #7050]
+
+	* test/test_securerandom.rb: tests for SecureRandom.hex
+	  from tenderlove. [ruby-core:46792][Bug #6799]
+
+Fri Oct 19 19:29:11 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* method.h (rb_method_cfunc_t::invoker): add new field (func ptr)
+	  `invoker'. `invoker' function invoke cfunc body
+	  (rb_method_cfunc_t::func).
+	  `invoker' is set at method definition timing.
+	  With this change, the big `switch' (branch) in `call_cfunc()'
+	  is no longer needed.
+	  However, the performance benefit is only a bit.
+
+	* vm_core.h (rb_call_info_t::aux::func): add a new field to store
+	  cfunc body function pointer.
+
+	* vm_method.c (call_cfunc_invoker_func): add a new function which
+	  returns a suitable invoke function.
+
+	* vm_method.c (setup_method_cfunc_struct): added.
+
+	* vm_method.c (rb_add_method): fix to set `invoker'.
+
+	* vm_eval.c (vm_call0_body): catch up above changes.
+
+	* vm_insnhelper.c (call_cfunc): removed.
+
+	* vm_insnhelper.c (vm_call_cfunc): fix to call cfunc body
+	  with `invoker' function.
+
+Fri Oct 19 16:55:58 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* eval.c, vm_eval.c: use TH_PUSH_TAG() instead of PUSH_TAG().
+
+Fri Oct 19 11:13:55 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/driver.rb: remove unexpected `output'.
+	  (commit miss)
+
+Fri Oct 19 10:24:03 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (vm_search_method): remove needless local variable.
+
+Fri Oct 19 10:22:26 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/bmx_temp.rb: removed.
+	  This file should not be in repository.
+
+Fri Oct 19 10:20:10 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/driver.rb: add new option `--ruby-arg [ARG]'
+	  which is passed as a launch parameter for each ruby's execution.
+	  ($ ruby [ARG] [File])
+
+Thu Oct 18 18:42:35 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* insns.def (opt_send_simple): move the location of
+	  `opt_send_simple' to the place near `send' definition.
+	  (to take care about icache locality).
+
+Thu Oct 18 18:29:25 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* insns.def (send): remove unused condition.
+	  This condition will be true after r37258.
+
+	* vm_insnhelper.c (vm_caller_setup_args): remove `UNLIKELY' on
+	  checking blockiseq (it seems `LIKELY').
+
+Thu Oct 18 17:31:58 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* insns.def (opt_send_simple): introduce new instruction used
+	  when no need to care about block and splat.
+
+	* compile.c: use the `opt_send_simple' instruction.
+
+Thu Oct 18 16:44:07 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_method.c (rb_add_method_cfunc, rb_add_method_cfunc_frameless):
+	  check arity earlier at definition time.
+
+Thu Oct 18 15:11:31 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c: add `inline' keyword to several functions.
+	  Compilers (gcc) are conservative than I expected.
+
+Thu Oct 18 15:01:15 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: add a decl. of
+	  `rb_define_frameless_method()'.
+
+Thu Oct 18 14:31:17 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (new_callinfo): set a temporary index of callinfo
+	  (used in `iseq_set_sequence()') to rb_call_info_t::aux::index.
+	  rb_call_info_t::argc is initialized by same value of
+	  rb_call_info_t::orig_argc.
+
+Thu Oct 18 14:11:08 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* class.c (rb_define_frameless_method): rename from
+	  rb_define_method_fast(). Defined method with this C API
+	  does not make a method frame. It is bit lightweight than
+	  ordinal C functions. Now only 0 or 1 argc are permitted.
+
+	* method.h (VM_METHOD_TYPE_CFUNC_FRAMELESS): rename macro name
+	  from VM_METHOD_TYPE_CFUNC_FAST.
+
+	* vm_insnhelper.c, vm_method.c: rename related functions.
+
+	* proc.c (rb_method_entry_arity): catch up above changes.
+
+Thu Oct 18 10:30:34 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (assignable_gen): fail if yyerror occurred.  fix a bug in
+	  r36973.
+
+Thu Oct 18 09:23:03 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* hash.c (initialize_copy): duping should rehash the hash.
+
+	* test/ruby/test_hash.rb: added a test to ensure rehash.
+
+Wed Oct 17 21:16:47 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* common.mk (WPROGRAM): need same dependencies as PROGRAM.
+
+	* cygwin/GNUmakefile.in (uncommon.mk): move include position
+	  below WPROGRAM definition to be defined in uncommon.mk.
+
+	* ext/extmk.rb (all, static): fix make rubyw.exe failure with make -jN.
+	  If make of ruby.exe and rubyw.exe run in parallel, link dll and link
+	  exe run in parallel, which causes link failure on mingw. To fix this,
+	  we make ruby.exe and rubyw.exe in one make process.
+	  [ruby-core:48007] [Bug #7165]
+
+Wed Oct 17 16:25:34 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/bm_vm2_method_missing.rb: add a benchmark to measure
+	  performance of invoking `method_missing'.
+
+Wed Oct 17 16:23:17 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (vm_getivar): fix to use `aux.index' instead of
+	  `aux.opt_pc'.
+
+Wed Oct 17 16:03:54 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (vm_call_method_missing): make a refactoring
+	  about method_missing process. Use `vm_call_method()' to invoke
+	  `method_missing' method instead of `rb_funcall2()'.
+	  In `vm_call_method()', set fastpath to `vm_call_method_missing()'
+	  if it can be cached.
+
+	* vm_core.h (rb_call_info_t): add new field
+	  `rb_call_info_t::aux::missing_reason' to pass the reason to
+	  `vm_call_method_missing()'.
+
+Wed Oct 17 15:33:12 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (opt-dir): allow multiple directories separated by
+	  $PATH_SEPARATOR as well as dir_config in mkmf.rb. [ruby-core:47868]
+	  [Bug #7120]
+
+Wed Oct 17 15:08:13 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/imap.rb: fix Net::IMAP::ResponseParser to accept
+	  message/delivery-status ([ruby-core:47920] [Bug #7146]),
+	  message/rfc822 attachments ([ruby-core:47921] [Bug #7147]), and
+	  (BODY ("MIXED")) ([ruby-core:47951] [Bug #7153]).
+	  patched by Tony Arkles.
+
+	* test/net/imap/test_imap_response_parser.rb: related test.
+
+Wed Oct 17 11:04:48 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_hash.rb (TestHash#test_dup_equality): added a new test
+	  to show the problem of r37232.
+
+Wed Oct 17 10:48:40 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_search_method): fix a build error that occurs
+	  when OPT_INLINE_METHOD_CACHE is 0.
+
+Wed Oct 17 08:46:47 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/bm_vm2_dstr.rb: add a benchmark to measure
+	  performance of dynamic generated string ("foo#{bar}baz").
+
+Wed Oct 17 08:32:46 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (compile_dstr_fragments): use `putobject' instead of
+	  `putstring' for all of strings used by NODE_DSTR because
+	  ruby users can not grab this string.
+	  For example, the string object of "baz" in "foo#{bar}baz"
+	  is located by `putobject' (users can not touch "baz" object
+	  directly). This change reduces GC pressure.
+	  This improvement is suggested by Aaron Patterson.
+
+Wed Oct 17 08:02:57 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* thread.c (rb_threadptr_interrupt_mask): fix to check interrupt
+	  after interrupt_mask changed.
+
+Wed Oct 17 06:42:47 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (vm_call_method): fix to return value immediately.
+	  Remove CHECK_INTS() after that method dispatch.
+
+Wed Oct 17 06:25:56 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* hash.c (initialize_copy): copy the underlying st_table on dup,
+	  rather than copying the hash key by key. [ruby-core:48009]
+
+	* test/ruby/test_hash.rb: relevant tests for initialize_copy
+
+Wed Oct 17 06:17:44 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (vm_call_iseq_setup_2): separate tailcall and normal
+	  method frame setup functions.
+	  Add checking interrupts at the tailcall setup function.
+
+Wed Oct 17 05:35:37 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/bm_vm1_yield.rb: add a benchmark to measure `yield'
+	  (invoke empty block) performance.
+
+	* benchmark/bm_vm2_method_with_block.rb: add a benchmark to measure
+	  method invocation with empty block.
+
+Wed Oct 17 05:05:07 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (vm_invoke_block): vm_caller_setup_args() can skip
+	  when splat flag is not set.
+
+Wed Oct 17 01:53:47 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (vm_getivar, vm_setivar): support index inline cache
+	  with rb_call_info_t to speedup `attr' getter and setter.
+	  Cached index is stored in rb_call_info_t::aux::index.
+	  `index' == 0 means not cached. `index' > 0 means cached and cached
+	  index is `index - 1'.
+
+	* insns.def ((get|set)instancevariable): use new wrapper functions
+	  vm_(get|set)instancevariable() defined in vm_insnhelper.c.
+
+	* vm_core.h (rb_call_info_t::aux): introduce new union data because
+	  opt_pc can share with index.
+
+Tue Oct 16 22:24:44 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/driver.rb (show_results): Show speedup ratio
+	  with first executables score at last of results
+	  if two or more executables are given.
+
+Tue Oct 16 21:59:01 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/driver.rb: some refactoring.
+	  (1) Remove `average differential'.
+	      In this benchmark driver, We should not care about `average'.
+	      We use fastest score because this score should not include
+	      any disturbances (affections of background process, etc).
+	      If you care about timing affect, I recommend `median'
+	      score with more than 5 examinations rather than simple
+	      `average' score (`average' score was affected by error scores).
+	  (2) Show log file name.
+	  (3) Change default directory from './' to driver's directory.
+
+Tue Oct 16 14:56:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (rb_file_join): need to check again after any conversion run.
+	  [ruby-core:48012] [Bug #7168]
+
+Tue Oct 16 12:52:14 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* test/ruby/envutil.rb (Test::Unit::Assertions#assert_file):
+	  rename from file_assertion.
+
+Tue Oct 16 11:30:18 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (rb_file_join): hide the result under construction until
+	  return.
+
+	* file.c (rb_file_join): check nul-byte only for strings, since
+	  FilePathStringValue() does it.  [ruby-core:48012] [Bug #7168]
+
+	* file.c (rb_file_join): path names must be ASCII-compatible.
+	  [ruby-core:48012] [Bug #7168]
+
+	* file.c (check_path_encoding): new function to ensure path name
+	  encoding to be ASCII-compatible.
+
+Tue Oct 16 09:40:04 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_regexp.rb
+	  (TextRegexp#test_raw_hyphen_and_tk_char_type_after_range): use
+	  Regexp.new instead of literal to ignore a parser warning.
+
+Tue Oct 16 09:30:30 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_regexp.rb
+	  (TextRegexp#test_raw_hyphen_and_tk_char_type_after_range): ignoring
+	  warnings are already set in setup method.
+
+Tue Oct 16 06:44:06 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (VM_CALLEE_SETUP_ARG): fix wrong condition.
+
+Tue Oct 16 06:29:18 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (vm_call_method): disable CI_SET_FASTPATH() if
+	  this method call needs splat argument because cached functions
+	  (vm_call_attrset, vm_call_ivar, vm_call_cfunc_fast_(unary|binary))
+	  do not check an arity.
+
+	* bootstraptest/test_method.rb: add a test to check an above issue.
+
+Tue Oct 16 06:15:44 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* method.h: introduce new method type VM_METHOD_TYPE_CFUNC_FAST.
+	  This method is similar to VM_METHOD_TYPE_CFUNC methods, but
+	  called cfunc without building new frame (does not push new control
+	  frame). If error is occurred in cfunc, the backtrace only shows
+	  caller frame and upper.
+	  This kind of methods can be added by rb_define_method_fast().
+	  This feature is similar to specialized instructions (opt_plus, etc),
+	  but more flexible (but a bit slower).
+
+	* class.c (rb_define_method_fast): added.
+	  Maybe it will be renamed soon.
+
+	* vm_insnhelper.c (vm_call_method): support method type
+	  VM_METHOD_TYPE_CFUNC_FAST.
+
+	* proc.c (rb_method_entry_arity): catch up new method type.
+
+	* vm_method.c (rb_add_method_cfunc_fast): added.
+
+Tue Oct 16 02:32:29 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.h (CI_SET_FASTPATH): add new parameter `enabled'.
+	  If `enable' is 0 then CI_SET_FASTPATH() doesn't work.
+	  And add new configuration option OPT_CALL_FASTPATH. If this macro
+	  was defined by 0, then CI_SET_FASTPATH() doesn't work any more.
+
+	* vm_insnhelper.c (vm_call_method): Pass `0' for `enabled' parameter
+	  of CI_SET_FASTPATH if this method is protected.
+
+Tue Oct 16 02:17:35 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h (VM_CALL_*): rename VM_CALL_*_BIT
+	  to VM_CALL_* (remove `_BIT' suffix).
+	  Add comments on each macros.
+	  Remove unused macro VM_CALL_TAILRECURSION_BIT.
+
+	* compile.c, iseq.c, insns.def, vm_insnhelper.c: ditto.
+
+Mon Oct 15 22:14:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/envutil.rb (Test::Unit::Assertions#file_assertion):
+	  rewrite file assertions.
+
+Mon Oct 15 09:41:17 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (VM_CALLEE_SETUP_ARG): skip CI_SET_FASTPATH() if
+	  it was called from vm_yield_setup_args().
+
+Mon Oct 15 05:20:13 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.h CI_SET_FASTPATH: introduce new macro
+	  `CI_SET_FASTPATH(ci, func)'. This macro set `ci->call' as `func'.
+	  `func' (ci->call) is called at the last of `send'
+	  (and `invokesuper') instruction.
+	  `CI_SET_FASTPATH' does not set `ci->call' when the method
+	  (stored in `ci->me') is `protected'.
+
+	* vm_insnhelper.c (vm_call_method): use `CI_SET_FASTPATH'.
+	  After several checking (visibility, argc checking), the result of
+	  checking can be reused until re-definition of this method
+	  with inline method cache.
+
+	  Note that this optimization is now experimental.
+	  If you find any problem about it, please tell us.
+
+Mon Oct 15 04:51:55 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c: refactoring.
+	  - move all `call' related functions to the last of file.
+	  - make functions for respective method types in vm_call_method().
+	    (all functions have same function parameters)
+
+	* vm_core.h: add `opt_pc' field in `rb_call_info_t'
+	  as temporal variable.
+
+	* vm_eval.c (vm_call0_body): catch up above changes.
+
+Mon Oct 15 03:51:46 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/bm_vm1_attr_ivar(_set).rb: added (for method dispatch speed).
+
+	* benchmark/bm_vm1_float_simple.rb: added (for flonum/float).
+
+Mon Oct 15 02:51:16 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_eval.c (vm_call0_body): add new function.
+	  `vm_call0()' makes call_info struct and calls `vm_call0_body()'
+	  with this struct. In near future, `vm_call0()' will be removed
+	  because all of `vm_call0()' users setup call_info struct by itself.
+
+Mon Oct 15 01:38:06 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* insns.def (send, invokesuper, invokeblock, opt_*), vm_core.h:
+	  use only a `ci' (rb_call_info_t) parameter instead of using
+	  parameters such as `op_id', 'op_argc', `blockiseq' and flag.
+	  These information are stored in rb_call_info_t at the compile
+	  time.
+	  This technique simplifies parameter passing at related
+	  function calls (~10% speedups for simple method invocation at
+	  my machine).
+	  `rb_call_info_t' also has new function pointer variable `call'.
+	  This `call' variable enables to customize method (block)
+	  invocation process for each place. However, it always call
+	  `vm_call_general()' at this changes.
+	  `rb_call_info_t' also has temporary variables for method
+	  (block) invocation.
+
+	* vm_core.h, compile.c, insns.def: introduce VM_CALL_ARGS_SKIP_SETUP
+	  VM_CALL macro.  This flag indicates that this call can skip
+	  caller_setup (block arg and splat arg).
+
+	* compile.c: catch up above changes.
+
+	* iseq.c: catch up above changes (especially for TS_CALLINFO).
+
+	* tool/instruction.rb: catch up above changes.
+
+	* vm_insnhelper.c, vm_insnhelper.h: ditto. Macros and functions
+	  parameters are changed.
+
+	* vm_eval.c (vm_call0): ditto (it will be rewritten soon).
+
+Sun Oct 14 12:30:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ruby.c (rb_f_sub, rb_f_gsub): pass the given block.
+	  [ruby-core:47967] [Bug #7157]
+
+Sat Oct 13 23:15:39 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* regparse.c (parse_char_class): should match with a hyphen after a
+	  range in a character class.
+
+	* test/ruby/test_regexp.rb (TestRegexp#test_char_class): fixed wrong
+	  test.
+
+	* test/ruby/test_regexp.rb (TestRegexp#check): now can accept the
+	  error message.
+
+	* test/ruby/test_regexp.rb
+	  (TextRegexp#test_raw_hyphen_and_tk_char_type_after_range): renamed
+	  because the previous name was wrong.
+
+	* test/ruby/test_regexp.rb
+	  (TextRegexp#test_raw_hyphen_and_tk_char_type_after_range): added
+	  more test pattern.
+
+Sat Oct 13 03:01:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (realpath_rec): prevent link from GC while link_names refers
+	  the content.
+
+Sat Oct 13 01:37:48 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_regexp.rb
+	  (TestRegexp#test_raw_hyphen_and_type_char_after_range): added new
+	  test. ref [ruby-core:47115] [Backport #6853]
+
+Fri Oct 12 21:55:08 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* include/ruby/win32.h (rb_w32_pow): set floating point precision
+	  for mingw-w64 x86 pow(). This improves the precision of pow() on
+	  Windows XP for TestFloat#test_round_with_precision failure.
+	  [ruby-core:47911] [Bug #7142]
+
+Fri Oct 12 21:37:25 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/webrick/test_cgi.rb (TestWEBrickCGI#test_cgi): skip a test
+	  depending on locale on Windows. ENV[] doesn't work properly if
+	  console code page is not equal to file system encoding.
+	  [ruby-core:47910] [Bug #7140]
+
+Fri Oct 12 20:40:29 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (posix_sh_cmds): the command name of colon is ":".
+
+Fri Oct 12 18:18:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (rb_get_path_check): path name must not contain NUL bytes.
+
+Fri Oct 12 16:06:20 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* tool/merger.rb: now can merge revision(s) without --ticket again.
+
+Fri Oct 12 14:10:41 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (dir_config, init_mkmf): use configured libdir value as
+	  default library path.  [ruby-core:43726] [Bug #6207]
+
+Fri Oct 12 05:25:00 2012  Zachary Scott	<zzak@ruby-lang.org>
+
+	* lib/timeout.rb (timeout):
+	  Remove paragraph on wrong implementation detail.
+	  [ruby-core:47739] [Bug #7088]
+
+Thu Oct 11 23:09:46 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_sub{seq,pos,str}, rb_str_each_{line,codepoint}):
+	  prevent String copies from GC.  [ruby-core:47881] [Bug #7135]
+
+Thu Oct 11 07:40:50 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* iseq.c (insn_operand_intern): cast op to rb_call_info_t* before
+	  compare with iseq->callinfo_entries whose type is rb_call_info_t*.
+
+Thu Oct 11 03:37:08 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* bootstraptest/test_block.rb: add tests for block with super.
+
+Thu Oct 11 02:54:07 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_dump.c: fix debug prints to catch up recent changes
+	  such as VM data structures.
+
+Thu Oct 11 02:50:34 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* iseq.c (insn_operand_intern): add support disasm TS_CALLINFO
+	  operands.
+
+Wed Oct 10 15:12:48 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_process.rb (TestProcess#test_execopts_gid): skip on
+	  windows because the platform does not have Process.group method.
+	  patched by Jon Forums in [ruby-core:47878] [Bug #7133].
+
+Tue Oct  9 23:18:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/envutil.rb (assert_file, assert_file_not): more
+	  descriptive assertions for File predicates.
+
+Tue Oct  9 18:01:37 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_sample): use rb_random_ulong_limited, since
+	  precision of long may be larger than double.
+
+	* random.c (rb_random_ulong_limited): new function to return a random
+	  value from 0 upto limit as unsigned long, similarly to
+	  rb_genrand_ulong_limited but with arbitrary RNG object.
+
+Tue Oct  9 17:13:27 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (rb_execarg_addopt, rb_execarg_run_options): add :uid and
+	  :gid options.  [ruby-core:47414] [Feature #6975]
+
+Tue Oct  9 14:36:11 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* iseq.c (iseq_free): fix memory leak.
+	  rb_iseq_t::callinfo_entries should be freed.
+
+Tue Oct  9 14:28:18 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h (rb_call_info_t): add new type `rb_call_info_t'.
+	  This data structure contains information including inline method
+	  cache. After that, `struct iseq_inline_cache_entry' does not
+	  need to contain inline cache for method invocation.
+	  Other information will be added to this data structure.
+
+	* vm_core.h (rb_iseq_t): add `callinfo_entries' and `callinfo_size'
+	  members to `rb_iseq_t'.
+
+	* insns.def, compile.c: Use CALL_INFO instead of IC.
+
+	* tool/instruction.rb: support CALL_INFO as operand type.
+
+	* vm_insnhelper.c, vm_insnhelper.h: ditto.
+
+Sun Oct  7 23:54:33 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* ext/zlib/zlib.c (zstream_run_func): don't call inflate() when
+	  z->stream.avail_in == 0. it return Z_BUF_ERROR.
+	  but deflate() could be called with z->stream->avail_in == 0 because
+	  it has hidden buffer in z->stream->state (opaque structure).
+	  fix for gem install error. [ruby-dev:46149] [Bug #7040]
+
+Mon Oct  8 23:55:41 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (rb_mod_refinements): new method Module#refinements.
+
+	* test/ruby/test_refinement.rb: add new tests for the above changes.
+
+Mon Oct  8 23:02:19 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c, gc.c, iseq.c, node.h, vm_insnhelper.c, vm_insnhelper.h,
+	  vm_method.c: rename omod and overlaid modules to refinements.
+
+	* eval.c (hidden_identity_hash_new): renamed from identity_hash_new.
+
+Sun Oct  7 04:50:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+
+	* lib/abbrev.rb: Documentation examples for Abbrev.
+	  [ruby-core:47442] [Bug #6985]
+
+Sun Oct  7 04:50:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+
+	* thread.c (rb_thread_aref):
+	  Grammar in Thread documentation.
+	  Patch by Steve Klabnik [ruby-core:47799] [Bug #7099]
+
+Sun Oct  7 04:37:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+
+	* string.c (rb_str_match):
+	  Clarify behavior for captured strings and local variable assignment
+	  Patch by Marcus Stollsteimer [ruby-core:47668] [Bug #7062]
+
+Sat Oct  6 18:31:36 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_opts.h (OPT_GLOBAL_METHOD_CACHE): new build option to
+	  enable/disable global method caching. [ruby-dev:46203] [Bug #7111]
+
+	* vm_method.c (rb_method_entry_get_with_omod): don't use global
+	  method cache if OPT_GLOBAL_METHOD_CACHE is 0.
+
+Sat Oct  6 16:32:04 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_method.c (search_method): check omod only once for performance.
+
+Sat Oct  6 09:42:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enc/encdb.c, enc/utf_16_32.h (ENC_DUMMY_UNICODE): endian-less wide
+	  UTF encodings are dummy but Unicode.
+
+	* encoding.c (rb_encdb_set_unicode): set Unicode flag.
+
+	* template/encdb.h.tmpl: allow ENC_DUMMY variants.
+
+	* encoding.c (rb_enc_unicode_p): oniguruma provides Unicode flag.
+
+Fri Oct  5 17:18:42 JST 2012  TAKANO Mitsuhiro  <tak@no32.tk>
+
+	* template/Doxyfile.tmpl: remove SHOW_DIRECTORIES and
+	  HTML_ALIGN_MEMBERS lines. They have been obsolete in
+	  Doxygen version 1.8.2.
+
+Fri Oct  5 15:26:18 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/objspace.c: add ObjectSpace#reachable_objects_from.
+	  This method returns an array of objects referenced by given object.
+	  If given object is special objects such as true/false/nil/Fixnum etc
+	  then it returns nil. See rdoc for details.
+	  [ruby-core:39772]
+
+	* test/objspace/test_objspace.rb: add a test for this method.
+
+	* gc.c: add rb_objspace_reachable_objects_from().
+	  To make this function, add several member `mark_func_data'
+	  to rb_objspace_t.  If mark_func_data is not null, then
+	  gc_mark() calls mark_func_data::mark_func.
+
+	* gc.h: export rb_objspace_reachable_objects_from().
+
+Thu Oct  4 23:40:04 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (init_heap): call init_mark_stack before to allocate
+	  altstack. This change avoid the stack overflow at the signal
+	  handler on 32bit, but I don't understand reason... [Feature #7095]
+
+Thu Oct  4 22:39:27 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* insns.def (getlocal, setlocal): remove old getlocal/setlocal
+	  instructions and rename getdaynmic/setdynamic instructions
+	  to getlocal/setlocal.
+
+	* compile.c: ditto.
+
+	* iseq.c: remove TS_DINDEX.
+
+	* vm_exec.h (dindex_t): remove type definition of `dindex_t'.
+
+	* tool/instruction.rb: ditto.
+
+Thu Oct  4 21:44:17 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (vm_analysis_insn|operand|register): use st_insert
+	  instead of using rb_hash_aset() because rb_hash_aset()
+	  check $SAFE.
+
+Thu Oct  4 21:15:26 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (VM_COLLECT_USAGE_DETAILS): make new VM usage analysis
+	  hooks (old macro name is COLLECT_USAGE_ANALYSIS).
+	  This feature is only for VM developers.  (I'm not sure I can use
+	  `VM developers' (the plural form) in this sentence).
+	  If VM_COLLECT_USAGE_DETAILS is not 0, VM enables the following
+	  usage collection features:
+	    (1) instruction: collect instruction usages.
+	    (2) operand: collect operand usages.
+	    (3) register: collect register usages.
+	  The results are stored in
+	    RubyVM::USAGE_ANALYSIS_INSN for (1, 2),
+	    RubyVM::USAGE_ANALYSIS_INSN_BIGRAM for (1) and
+	    RubyVM::USAGE_ANALYSIS_REGS for (3).
+	  You can stop collecting usages with
+	    RubyVM::USAGE_ANALYSIS_INSN_STOP(),
+	    RubyVM::USAGE_ANALYSIS_OPERAND_STOP(),
+	    RubyVM::USAGE_ANALYSIS_REGISTER_STOP()
+	  for (1), (2), (3) respectively.
+	  You can also change the hook functions by setting
+	  C level global variables
+	    `ruby_vm_collect_usage_func_(insn|operand|register)'
+	  for (1), (2), (3) respectively.
+	  See codes for more details.
+
+	* tool/instruction.rb: fix macro names.
+
+	* iseq.c (insn_operand_intern): make it export (used in vm.c).
+	  fix to skip several processes if not needed (pointer is 0).
+
+	* vm_dump.c: move codes for collection features to vm.c.
+
+	* vm_exec.h: rename macro and function names.
+
+	* vm_insnhelper.h: ditto.
+
+Thu Oct  4 18:59:14 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_settracefunc.rb (test_tracepoint):
+	  remove unused test case.
+	  (this test case is redefined by newer tests)
+
+Thu Oct  4 17:24:51 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (rb_objspace_call_finalizer): call gc_mark_stacked_objects
+	  at suitable point.
+
+Thu Oct  4 16:31:29 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (rb_objspace_call_finalizer): mark self-referencing finalizers
+	  before run finalizers, to fix SEGV from btest on 32bit.
+
+	* gc.c (gc_mark_stacked_objects): extract from gc_marks().
+
+Thu Oct  4 11:43:28 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread_pthread.c (ruby_init_stack): round stack limit to page size
+	  boundary to calculate stack size more precisely.  [ruby-dev:46174]
+	  [Bug #7084]
+
+Wed Oct  3 19:51:57 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c: Use the non-recursive marking instead of recursion. The
+	  recursion marking of CRuby needs checking stack overflow and the
+	  fail-safe system, but these systems not good at partial points,
+	  for example, marking deep tree structures. [ruby-dev:46184]
+	  [Feature #7095]
+
+	* configure.in (GC_MARK_STACKFRAME_WORD): removed. It's used by
+	  checking stack overflow of marking.
+
+	* win32/Makefile.sub (GC_MARK_STACKFRAME_WORD): ditto.
+
+Wed Oct  3 15:33:02 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread_pthread.c (ruby_init_stack): use getrlimit() for the main
+	  thread on Mac OS X, since pthread_get_stack{addr,size}_np()
+	  return the default value always, but not the ulimit value.
+	  [ruby-dev:46174] [Bug #7084]
+
+Wed Oct  3 11:43:15 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_io_reopen): improvement to accept optional arguments.
+	  a patch by Glass_saga (Masaki Matsushita) in [ruby-core:47806].
+	  [Feature #7103]
+
+Wed Oct  3 04:36:11 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/openssl/ossl_x509store.c (ossl_x509store_add_file):  Added
+	  documentation
+	* ext/openssl/ossl_x509store.c (ossl_x509store_set_default_paths):
+	  ditto
+	* ext/openssl/ossl_x509store.c (ossl_x509store_add_cert):  ditto
+
+Wed Oct  3 02:23:37 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* error.c (exc_to_s, name_err_to_s, name_err_mesg_to_str): do not
+	  taint messages.
+
+Tue Oct  2 16:47:06 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval.c (identity_hash_new): hide internal hashes for refinements.
+
+	* eval.c (rb_mod_refine): no default value.
+
+Mon Oct  1 22:54:02 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (identity_hash_new): new function to create a new identity
+	  hash.
+
+	* eval.c (rb_overlay_module, rb_mod_using, rb_mod_refine): use
+	  identity_hash_new().
+
+Mon Oct  1 02:34:53 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* configure.in (--with-opt-dir): Make this also work on DLDFLAGS
+	  so LIBRUBY_SO links fine with libexecinfo installed in a
+	  non-system directory.
+
+Sun Sep 30 23:32:00 2012  Kenta Murata  <mrkn@mrkn.jp>
+
+	* vm_dump.c (rb_vm_bugreport): add /Library/Logs/DiagnosticReports
+	  in the list of locations of crash reports.
+
+Sun Sep 30 21:18:03 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (rb_str_concat): use memcpy to copy a string which contains
+	  NUL characters. [ruby-core:47751] [Bug #7090]
+
+Sat Sep 29 19:41:53 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/ruby/envutil.rb (EnvUtil#invoke_ruby): kill child process
+	  before Timeout::Error is raised. rmdir of mktmpdir fails with
+	  EACCES if child process is alive on Windows.
+
+	* test/thread/test_queue.rb (TestQueue): increase timeout.
+	  This test takes long time on Windows XP.
+
+Sat Sep 29 19:41:33 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/net/http/test_http.rb (TestNetHTTP#test_proxy_address):
+	  clear environment variables. If http_proxy environment variable was
+	  set, the test failed.
+
+	* test/net/http/test_http.rb (TestNetHTTP#test_proxy_port): ditto.
+
+Sat Sep 29 19:41:11 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/drb/drbtest.rb (DRbCore#teardown):
+	  Use Process.kill :KILL on Windows because Process.kill :INT silently
+	  fails on Windows 7 and raises EINVAL on Windows XP for spawned
+	  process with new_pgroup: false.
+
+	* test/drb/drbtest.rb (DRbAry#teardown): ditto.
+
+Sat Sep 29 19:40:32 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/ruby/test_unicode_escape.rb (TestUnicodeEscape#test_basic):
+	  set script encoding to work with LANG=C. It would work on both
+	  Windows and Unix. Refix of r37051.
+
+Sat Sep 29 11:21:06 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_insnhelper.c (rb_vm_using_modules): use using_modules before
+	  klass to fix method lookup order, and use klass even if klass is
+	  not a module to make refinements in class_eval invoked on classes
+	  work.
+
+	* eval.c (rb_using_module): accept a class as the second argument.
+
+	* eval.c (rb_mod_using, f_using): raise a TypeError if the argument
+	  is not a module.
+
+	* test/ruby/test_refinement.rb: add new tests for the above changes.
+
+Sat Sep 29 02:18:57 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/ruby/test_unicode_escape.rb (TestUnicodeEscape#test_basic):
+	  Use ruby only on Windows since the test fails on Unix with LANG=C.
+	  [ruby-core:47709] [Bug #7076]
+
+Fri Sep 28 22:19:31 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/ruby/test_unicode_escape.rb (TestUnicodeEscape#test_basic):
+	  echo command doesn't work properly against non-ascii character on
+	  Windows with chcp 437. Instead we use ruby.
+	  [ruby-core:47709] [Bug #7076]
+
+Fri Sep 28 17:54:31 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (vm_setup_method): refactoring.
+	  Remove src_argc and use iseq->arg_size directly.
+
+Fri Sep 28 17:26:27 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/rubygems/installer.rb (check_that_user_bin_dir_is_in_path):
+	  test_generate_bin_bindir_with_user_install_warning(TestGemInstaller)
+	  fails on Windows with msys bash. It makes comparing paths
+	  case-insensitive.
+	  pick from upstream to fix a failure of test-all [ruby-core:47711]
+	 https://github.com/rubygems/rubygems/commit/c474edb2f3704206f04da1c8c6cf9fb079d84abe
+
+Fri Sep 28 15:44:45 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_method.c (search_method): copy refinement iclasses to search
+	  superclasses correctly.
+
+	* test/ruby/test_refinement.rb: related test.
+
+Fri Sep 28 15:15:41 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* insns.def (opt_checkenv): remove unused instruction `opt_checkenv'.
+
+	* compile.c (iseq_compile_each): ditto.
+
+	* node.h: remove unused node `NODE_OPTBLOCK'.
+
+	* ext/objspace/objspace.c, gc.c (gc_mark_children): ditto.
+
+Fri Sep 28 13:14:34 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h: now VM_DEBUG_BP_CHECK should be 1.
+
+Fri Sep 28 12:51:54 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h: remove rb_control_frame_t::bp (bp: base pointer).
+	  `bp' can be calculate by `sp' (stack pointer) of previous frame.
+	  Now, `bp_check' field is remained for debug.  You can eliminate
+	  this field by setting  VM_DEBUG_BP_CHECK as 0.
+
+	* vm_insnhelper.c (vm_base_ptr): add `vm_base_ptr(cfp).
+	  This function calculates base pointer from cfp.
+
+	* vm_insnhelper.c (vm_setup_method): push `recv' value on top of
+	  value stack (before method parameters).
+	  This change is for keeping consistency with normal method dispatch.
+
+	* insns.def: fix to use vm_base_ptr().
+
+	* vm.c (vm_exec): ditto.
+
+	* vm_dump.c: remove `bp' related dumps.
+
+	* cont.c (fiber_init): fix to check VM_DEBUG_BP_CHECK.
+
+Fri Sep 28 10:40:51 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_io_reopen): accept File::Constants as well as mode string.
+	  based on the patch by Glass_saga (Masaki Matsushita) in
+	  [ruby-core:47694].  [Feature #7067]
+
+Thu Sep 27 18:36:51 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (rb_overlay_module, rb_mod_refine): accept a module as the
+	  argument of Module#refine.
+
+	* vm_method.c (search_method): if klass is an iclass, lookup the
+	  original module of the iclass in omod in order to allow
+	  refinements of modules.
+
+	* test/ruby/test_refinement.rb: add tests for the above changes.
+
+Thu Sep 27 18:12:20 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/syslog/lib/syslog/logger.rb: add a formatter to the
+	  Syslog::Logger object. [Bug #7065]
+	* test/syslog/test_syslog_logger.rb: ditto.
+
+Wed Sep 26 16:39:57 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* insns.def: add new instruction `opt_empty_p' for optimize `empty?'
+	  method.  Apply a patch proposed at [ruby-dev:46120]
+	  [ruby-trunk - Feature #6972] by Glass_saga (Masaki Matsushita).
+
+	* compile.c (iseq_specialized_instruction), vm.c, vm_insnhelper.h:
+	  ditto.
+
+	* id.c, template/id.h.tmpl: ditto.
+
+	* test/ruby/test_optimization.rb: test for this changes.
+
+Tue Sep 25 09:59:26 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* insns.def (invokesuper): klass in cfp is not valid in at_exit and
+	  END blocks.  [ruby-core:47680] [Bug #7064]
+
+Tue Sep 25 08:11:11 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* iseq.c (rb_iseq_defined_string): the index of defined_strings must
+	  be the value of type - 1.
+
+Mon Sep 24 17:36:51 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (defined_expr), insns.def (defined): share single frozen
+	  strings.  [EXPERIMENTAL] [ruby-core:47558][Feature #7035]
+
+	* iseq.c (rb_iseq_defined_string): make expression strings.
+
+Mon Sep 24 11:22:36 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/merger.rb: add --ticket option to add ticket number.
+
+Sun Sep 23 21:51:59 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (String#unspace): unescape with backslashes.  normal
+	  makes need to escape spaces with backslashes.  nmake is not the
+	  case.  [Bug #7036]
+
+	* lib/mkmf.rb (create_makefile): use timestamp file dependencies for
+	  directories.
+
+	* lib/mkmf.rb: unexpand macros.
+
+	* lib/mkmf.rb (LIBPATHFLAG): no needs to escape library path here.
+
+	* lib/mkmf.rb (MakeMakefile#configuration): make prefix paths
+	  internal to deal with in Makefile.
+
+	* lib/mkmf.rb (MakeMakefile#mkintpath): not a global function now.
+
+Sun Sep 23 02:33:37 2012  Benoit Daloze  <eregontp@gmail.com>
+
+	* complex.c: Fix examples of r36993.
+	  Keep the simple definition, mathematics define the result.
+	  Based on patch by Robin Dupret. Fixes #188 on github.
+
+Sat Sep 22 07:15:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+
+	* ext/ripper/lib/ripper.rb:
+	  Match sample output to Ripper.sexp from current trunk version.
+	  [Bug #6929]
+
+Thu Sep 20 23:05:11 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread_pthread.c (native_cond_initialize): destroy condattr
+	  after using it. Patch by Stanislav Sedov. Thank you.
+	  [Bug #7041] [ruby-core:47619]
+
+Thu Sep 20 22:53:02 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread_pthread.c (native_cond_initialize): clean up #ifdef condition.
+
+Thu Sep 20 16:42:44 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/drb/ssl.rb (DRb::DRbSSLSocket::SSLConfig::DEFAULT): add
+	  SSLTmpDhCallback for configuration option.
+
+	* lib/drb/ssl.rb (setup_ssl_context): copy the value of tmp_dh_callback.
+
+	* test/drb/ut_array_drbssl.rb: set tmp_dh_callback to suppress warning.
+
+	* test/drb/ut_drb_drbssl.rb: ditto.
+
+Thu Sep 20 10:56:08 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/drb/ut_drb.rb: revert a part of r36987, and get rid of a warning
+	  with another method.  if the substitution is removed, the ExtSrv
+	  object will be GC'ed and some tests will be blocked.
+
+Thu Sep 20 07:20:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+
+	* complex.c: Examples for Complex Documentation.
+	  Patch by Robin Dupret.
+	  Fixes #184 on github.
+
+Thu Sep 20 07:15:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+
+	* ext/ripper/lib/ripper.rb: Documentation for Ripper.
+	  +:void_stmt+ is meaningless
+	  [Bug #6929] [ruby-core:47507]
+
+Thu Sep 20 07:05:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+
+	* lib/csv.rb (Object#CSV, Array#to_csv, String#parse_csv):
+	  Examples and documentation for CSV.
+	  [Bug #6880] [ruby-core:47218]
+
+Thu Sep 20 00:42:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (take_items), enum.c (enum_zip): raise TypeError at
+	  non-enumerable objects, not NoMethodError.  [ruby-dev:46145]
+	  [Bug #7038]
+
+	* vm_eval.c (rb_check_block_call): check_funcall variant with block
+	  function.
+
+Tue Sep 18 17:51:29 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/openssl/ossl_ssl.c (ossl_sslctx_attrs): add npn_select_db to
+	  suppress warning: instance variable @npn_select_cb not initialized
+
+Sun Sep 16 17:47:00 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* tool/change_maker.rb:  Update svn detection for subversion 1.7's
+	  single .svn directory.
+
+Sun Sep 16 11:39:12 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (io_set_read_length): if the read length equals to the buffer
+	  string size then nothing to do.  or ensure the string modifiable
+	  before setting the length only when the former is shorter.  based on
+	  the patch in [ruby-core:47541] by Hiroshi Shirosaki.
+	  [ruby-core:46586] [Bug #6764]
+
+Sun Sep 16 08:57:52 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (strict_warnflags): separate strict flags from
+	  warnflags only for core.  [ruby-dev:46105]
+
+Sun Sep 16 08:16:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* .editorconfig: add.  [ruby-core:47548] [Feature #7030]
+
+Sat Sep 15 01:56:40 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/nkf/nkf-utf8/nkf.c: Merge upstream: 50a383c84.
+	  [ruby-dev:46128] [Bug #7005]
+
+Sat Sep 15 00:20:04 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/nkf/nkf.c (rb_nkf_convert): suppress warning.
+
+Fri Sep 14 04:05:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+
+	* array.c (rb_ary_diff, rb_ary_uniq):
+	  Enhance documentation for array uniqueness
+	  Based on a patch by Robin Dupret
+	  [Bug #6872] [ruby-core:47209]
+
+Fri Sep 14 03:30:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+
+	* array.c (rb_ary_select):
+	  Update documentation for Array#select
+	* enum.c (enum_find_all, enum_reject):
+	  Update documentation for Enumerable#find_all and Enumerable#reject
+	  Based on a patch by Jeff Saracco
+	  [Bug #6908] [ruby-core:47285] [Fixes #166 on github]
+
+Fri Sep 14 00:20:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+
+	* signal.c (rb_f_kill):
+	  Update documentation for Process.kill to reflect kill(2)
+	  Patch by Richo Healey
+
+Thu Sep 13 21:40:49 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* lib/securerandom.rb (SecureRandom.random_bytes):
+	  Use 64bit value as pointer for Windows x64 to fix SystemCallError.
+
+	* lib/securerandom.rb (SecureRandom.lastWin32ErrorMessage):
+	  Set proper encoding to avoid invalid byte sequence error.
+	  [ruby-core:47451] [Bug #6990]
+
+Thu Sep 13 11:20:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+
+	* lib/optparse.rb: Remove unreachable email address from documentation
+	  [Bug #6996] [ruby-core:47459]
+
+Thu Sep 13 11:20:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+
+	* lib/xmlrpc.rb: Documentation for XMLRPC
+	* lib/xmlrpc/datetime.rb: ditto.
+	* lib/xmlrpc/parser.rb: ditto.
+	* lib/xmlrpc/client.rb: ditto.
+	* lib/xmlrpc/utils.rb: ditto.
+	* lib/xmlrpc/README.rdoc: ditto.
+	* lib/xmlrpc/create.rb: ditto.
+	* lib/xmlrpc/base64.rb: ditto.
+	* lib/xmlrpc/config.rb: ditto.
+	* lib/xmlrpc/httpserver.rb: ditto.
+	* lib/xmlrpc/server.rb: ditto.
+	* lib/xmlrpc/marshal.rb: ditto.
+	* lib/xmlrpc/README.txt: ditto.
+	  [Bug #6909] [ruby-core:47286]
+
+Thu Sep 13 10:22:11 2012  Takashi Toyoshima  <toyoshim@gmail.com>
+
+	* configure.in: Don't use PIE on Haiku because loader support is not
+	  enough.
+
+Thu Sep 13 08:20:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+
+	* lib/shellwords.rb: Documentation for Shellwords.
+
+Thu Sep 13 08:00:00 2012  Zachary Scott  <zzak@ruby-lang.org>
+
+	* ext/ripper/lib/ripper.rb: Documentation for Ripper.
+	* ext/ripper/lib/ripper/lexer.rb: ditto.
+	* ext/ripper/lib/ripper/sexp.rb: ditto.
+	* ext/ripper/lib/ripper/filter.rb: ditto.
+	* ext/ripper/lib/ripper/core.rb: ditto.
+	  [Bug #6929] [ruby-core:47309]
+
+Wed Sep 12 22:59:07 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_method_missing, vm_call_method): reuse arguments
+	  on the VM stack and get rid of ALLOCA.
+
+Wed Sep 12 22:45::00 2012  Zachary Scott  <zzak@ruby-lang.org>
+
+	* ext/pathname/lib/pathname.rb: Documentation for Pathname.
+	* ext/pathname/pathname.c: ditto.
+	  [Bug #6947] [ruby-core:47354]
+
+Mon Sep 10 10:19:34 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* enc/depend: fixed wrong change in a part of r34802.
+
+Sun Sep  9 22:02:50 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* ext/socket/basicsocket.c (rsock_bsock_send):
+	  avoid unnecessary select() calls before doing I/O
+	  Patch by Eric Wong. [Feature #4538] [ruby-core:35586]
+	* ext/socket/init.c (rsock_s_recvfrom): ditto.
+	* ext/socket/init.c (rsock_s_accept): ditto.
+	* ext/socket/udpsocket.c (udp_send): ditto.
+	* io.c (io_fflush): ditto.
+	* io.c (io_binwrite): ditto.
+	* io.c (rb_io_syswrite): ditto.
+
+Mon Sep 10 01:38:51 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (nogvl_close, maygvl_close, nogvl_fclose, maygvl_fclose):
+	  suppress integer <-> pointer cast warnings.
+	  [Feature #4570] [ruby-core:35711]
+
+Mon Sep 10 01:36:00 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (rb_io_close): notify fd close before releasing gvl.
+	* io.c (fptr_finalize): modify fptr->mode before releasing gvl.
+	  remove unnecessary rb_thread_fd_close().
+	  [Feature #4570] [ruby-core:35711]
+
+Mon Sep 10 00:16:34 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* process.c: exec() requires to be single threaded also on Haiku.
+	  by Takashi Toyoshima <toyoshim@gmail.com>
+	  https://github.com/ruby/ruby/pull/178
+
+Sun Sep  9 21:21:15 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* lib/thread.rb (Queue#pop): Fixed double registration issue when
+	  mutex.sleep is interrupted. [Bug #5258] [ruby-dev:44448]
+	* lib/thread.rb (SizedQueue#push): ditto.
+
+	* test/thread/test_queue.rb (test_sized_queue_and_wakeup,
+	test_queue_pop_interrupt, test_sized_queue_pop_interrupt,
+	test_sized_queue_push_interrupt): new tests.
+
+Sun Sep  9 20:20:31 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* lib/sync.rb (Sync_m#sync_lock): Fixed wakeup/raise unsafe code.
+	  Patched by Masaki Matsushita. [Bug #5355] [ruby-dev:44521]
+
+	* test/thread/test_sync.rb (test_sync_lock_and_wakeup,
+	  test_sync_upgrade_and_wakeup, test_sync_lock_and_raise):
+	  new test.
+
+Sun Sep  9 18:39:46 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* include/ruby/intern.h (rb_thread_blocking_region): Added
+	  a comment of recommended alternative way.
+
+Sun Sep  9 18:37:05 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* lib/sync.rb (Sync_m): Removed RCS_ID.
+
+Sun Sep  9 18:21:03 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/ruby/test_io.rb (test_advise_pipe): new test to check
+	  io.advise() against anonymous io object don't make crash.
+	  made by Eric Wong. [Bug #6081] [ruby-core:42880]
+
+Sun Sep  9 16:47:12 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (nogvl_close, maygvl_close, nogvl_fclose, maygvl_fclose):
+	  new functions.
+	* io.c (fptr_finalize): release GVL if possible.
+	  Patched by Eric Wong. [Feature #4570] [ruby-core:35711]
+
+Sun Sep  9 16:08:48 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (io_bufread): removed unnecessary rb_thread_wait_fd().
+	  Patch by Eric Wong. [Bug #6629] [ruby-core:45789]
+	* io.c (rb_io_sysread): ditto.
+	* io.c (copy_stream_fallback_body): ditto.
+
+Sun Sep  9 15:21:52 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_mutex_lock): stop multiple threads use
+	  pthread_cond_timedwait() concurrently. [Bug #6278] [ruby-core:44275]
+
+Sat Sep  8 18:52:22 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* internal.h (struct rb_classext_struct): move allocator function into
+	  rb_classext_t from ordinary method table.  [ruby-dev:46121]
+	  [Feature #6993]
+
+	* object.c (rb_obj_alloc): call allocator function directly.
+
+	* vm_method.c (rb_define_alloc_func, rb_undef_alloc_func)
+	  (rb_get_alloc_func): use allocator function in rb_classext_t.
+
+Fri Sep  7 01:21:51 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/extmk.rb (extmake), lib/mkmf.rb (have_framework): fix splitting
+	  options with an argument, not using NUL as special character.
+	  [ruby-core:47447] [Bug #6987]
+
+Thu Sep  6 14:49:49 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* .gdbinit (rp): FLONUM support.
+
+	* include/ruby/ruby.h (ruby_special_consts): define FLONUM constants
+	  always, so that they are available from gdb.
+
+	* include/ruby/ruby.h (RB_FLOAT_TYPE_P): merge FLONUM and non-FLONUM
+	  versions.  inline TYPE() comparison and FLONUM_P() should be
+	  optimized away on non-FLONUM.
+
+Thu Sep  6 08:20:55 2012  Ryan Davis  <ryand-ruby@zenspider.com>
+
+	* lib/minitest/*: Imported minitest 3.4.0 (r7762)
+	* test/minitest/*: ditto
+
+Wed Sep  5 19:20:53 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* parse.y (rb_warn4S): renamed from rb_warn4(), because the case in
+	  r36911 takes a string.
+
+	* parse.y (rb_warn4S): use ripper_warnS() for ripper.
+
+	* parse.y (ripper_warnS): now it is used.
+
+Wed Sep  5 15:51:52 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* .travis.yml (notifications): [experimental] update notification
+	  template.
+
+Wed Sep  5 15:21:12 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* parse.y (rb_warn4): added as a rb_warn variant to warn with explicit
+	  source file name and line in parse.y.
+
+	* parse.y (warn_unused_var): use rb_warn4 to suppress warning on ripper.
+
+Wed Sep  5 13:30:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (glob_make_pattern): names under recursive need to be single
+	  basenames to match for each name.  [ruby-core:47418] [Bug #6977]
+
+Tue Sep  4 20:55:17 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/ruby/envutil.rb (EnvUtil#invoke_ruby): show Timeout::Error
+	  instead of IOError if the timeout has expired.
+
+	* test/test_pstore.rb
+	  (PStoreTest#test_pstore_files_are_accessed_as_binary_files):
+	  increase timeout because this test is slow on Windows.
+	  [ruby-core:47402] [Bug #6965]
+
+Tue Sep  4 11:28:57 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* vm_eval.c (ruby_eval_string_from_file_protect): initializer
+	  element is not computable at load time.
+
+Tue Sep  4 07:48:35 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* test/openssl/test_asn1_rb:
+	  test/openssl/test_ssl_session.rb:
+	  test/openssl/test_x509name.rb:
+	  test/openssl/test_buffering.rb:
+	  test/openssl/test_x509cert.rb:
+	  test/openssl/test_ssl.rb: Refactor code that leads to warnings on
+	  Ruby CI.
+
+Tue Sep  4 07:02:56 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* test/openssl/utils.rb: Use DSS1 as DSA signature digest for all
+	  OpenSSL versions < 1.0.0.
+	  [Feature #6946] [ruby-core:47405]
+
+Mon Sep  3 21:22:37 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (rb_float_value): suppress warnings.
+	  [ruby-core:47406][Bug #6971]
+
+Mon Sep  3 14:49:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/matrix.rb (Vector#magnitude): accumulate squares of absolute
+	  values to fix for complex vector.  [ruby-dev:46100] [Bug #6966]
+
+Mon Sep  3 10:09:36 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/extconf.rb: Detect OpenSSL_FIPS macro
+	  ext/openssl/ossl.c: Expose OpenSSL::OPENSSL_FIPS constant to
+	  indicate whether OpenSSL runs in FIPS mode.
+	  test/openssl/test_pkey_dh.rb: Generate 256 bit keys for
+	  non-FIPS installations to improve test performance (e.g. for
+	  rubyci).
+	  test/openssl/utils.rb: Replace DSS1 as certificate signature
+	  digest with SHA1 for FIPS installations when using DSA by
+	  introducing TestUtils::DSA_SIGNATURE_DIGEST.
+	  test/openssl/test_x509cert.rb:
+	  test/openssl/test_x509crl.rb:
+	  test/openssl/test_x509req.rb: Use DSA_SIGNATURE_DIGEST
+	  NEWS: Introduce OpenSSL::OPENSSL_FIPS
+
+	  These changes allow running the OpenSSL tests in FIPS mode
+	  while keeping a high performance for non-FIPS installations.
+	  Introduction of OpenSSL::OPENSSL_FIPS allows for applications
+	  to react to special requirements when using OpenSSL in FIPS mode.
+	  [Feature #6946] [ruby-core:47345]
+
+Sun Sep  2 21:46:28 2012  Martin Bosslet <Martin.Bosslet@googlemail.com>
+
+	* test/openssl/utils.rb: Use a cached DH key instead of generating a
+	  new one each time.
+
+Sun Sep  2 05:41:28 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/webrick/ssl.rb (WEBrick::Config::SSL): add new key
+	  SSLTmpDhCallback to set SSLContext#tmp_dh_callback.
+
+	* lib/webrick/ssl.rb (WEBrick::GenericServer#setup_ssl_context):
+	  follow above.
+
+Sat Sep  1 18:50:50 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/set.rb (#initialize_copy, #eql): Use instance_variable_get
+	  instead of instance_eval.
+
+Fri Aug 31 21:47:56 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/test/unit/test-unit.gemspec: Make test/unit default gem.
+	  [Feature #6875] [ruby-dev:46051]
+
+Fri Aug 31 18:35:02 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/extconf.rb: Check existence of OPENSSL_NPN_NEGOTIATED.
+	  ext/ossl_ssl.c: Support Next Protocol Negotiation. Protocols to be
+	  advertised by the server can be set in the SSLContext by using
+	  SSLContext#npn_protocols=, protocol selection on the client is
+	  supported by providing a selection callback with
+	  SSLContext#npn_select_cb. The protocol that was finally negotiated
+	  is available through SSL#npn_protocol.
+	  test/openssl/test_ssl.rb: Add tests for Next Protocol Negotiation.
+	  NEWS: add news about NPN support.
+	  [Feature #6503] [ruby-core:45272]
+
+Fri Aug 31 17:38:43 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/set.rb (Set#{each,reject!,select!}, SortedSet#each): Pass
+	  the original block through instead of creating one that only
+	  yields the passed argument.
+
+Fri Aug 31 16:23:20 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/ipaddr.rb: Introduce several new error classes where only
+	  ArgumentError and StandardError were used.  IPAddr::Error is
+	  their common ancestor class that inherits from ArgumentError for
+	  backward compatibility.  Submitted by Jon Daniel.  Fixes #173 on
+	  GitHub.
+
+Fri Aug 31 14:51:27 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/bigdecimal/test_bigdecimal.rb (TestBigDecimal#test_to_f): added
+	  for previous commit.
+
+Fri Aug 31 14:32:05 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_to_f): use self's sign to
+	  determine 0.0 and Inf's sign instead of internal double value's.
+	  Reported by phasis68 (Heesob Park) at [ruby-core:47381] [Bug #6955]
+
+Fri Aug 31 14:31:17 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* template/id.h.tmpl, tool/id2token.rb: make id.h independent from
+	  parse.h, and make parse.c dependent on it instead.
+
+Fri Aug 31 14:27:39 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (create_makefile): fix race conditions at install-ext.
+	  target files need to depend on destination directory timestamp
+	  files, not phony targets.
+
+Fri Aug 31 14:03:45 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_trace.c (clean_hooks): do not access freed memory.
+
+	* vm_trace.c (rb_threadptr_exec_event_hooks): fix uninitialized state
+	  when no events is executed.
+
+Thu Aug 30 18:21:51 2012  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_io_close): call rb_last_status_clear.
+
+Thu Aug 30 16:17:52 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_to_f): check underflow since
+	  strtod() sets errno to ERANGE at underflow too.  [ruby-core:47342]
+	  [Bug #6944]
+
+Thu Aug 30 12:44:43 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/set.rb (Set#{<,>,<=,>=}): Define comparison operators as
+	  shorthand for the {proper_}{subset?,superset?} methods (finally).
+	  Given a push by Alexander E. Fischer.
+
+Thu Aug 30 09:21:01 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/ftp.rb (URI::FTP#initialize): raise InvalidURIError if "//"
+	  is not present [ruby-core:47344] [Bug #6945]
+
+Thu Aug 30 07:45:12 2012  Luis Lavena  <luislavena@gmail.com>
+
+	* test/ruby/test_file_exhaustive.rb: fix test introduced in r36811 for
+	  posix environments where HOME is not defined.  [ruby-core:47322]
+
+Wed Aug 29 23:42:59 2012  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (rb_last_status_clear): declared.
+
+	* process.c (rb_last_status_clear): exported.
+	  (rb_f_system): call rb_last_status_clear.
+
+	* io.c (rb_f_backquote): call rb_last_status_clear.
+
+Wed Aug 29 22:01:15 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_f_system): check failures of waitpid.
+	  [ruby-talk:398687]
+
+Wed Aug 29 15:03:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (LIBDIR_BASENAME): use configured libdir value to fix
+	  --enable-load-relative on systems where libdir is not default value,
+	  overridden in config.site files.  [ruby-core:47267] [Bug #6903]
+
+	* ruby.c (ruby_init_loadpath_safe): ditto.
+
+Wed Aug 29 14:34:41 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c: SIZE_MAX is defined in stdint.h, so r36755 breaks
+	  32bit FreeBSD. [ruby-core:47360] [Bug #6948]
+
+Wed Aug 29 04:50:04 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* test/openssl/utils.rb
+	  test/openssl/test_pair.rb
+	  test/openssl/test_pkey_dh.rb: Use 1024 bit DH parameters to satisfy
+	  OpenSSL FIPS requirements. Patch by Vit Ondruch.
+	  [Bug #6938] [ruby-core:47326]
+
+Tue Aug 28 22:31:49 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* insns.def (checkmatch): suppress warnings. [ruby-core:47339]
+	  [Bug #6930]
+
+Tue Aug 28 20:03:54 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: Fixing Haiku R1/alpha3 build with gcc-4.4.4.
+	  - omit ANSI standard flags to compile socket extension where
+	    anonymous union is required.
+	  - remove redundant -be flags.
+	  by Takashi Toyoshima <toyoshim@gmail.com>
+	  https://github.com/ruby/ruby/pull/168
+
+Tue Aug 28 11:32:37 2012  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* nacl/GNUmakefile.in (.rbconfig.time): r36828 was incomplete.
+	  It did not run correctly on clean build.
+
+Tue Aug 28 09:25:20 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/Makefile.sub (Makefile): make to depend on common.mk, to
+	  stop and force to re-run make process when common.mk is changed.
+
+Mon Aug 27 20:19:49 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/etc/test_etc.rb (TestEtc#test_getgrgid): fix for non unique GID.
+	  No unixen systems guarantee that GID is unique. Etc.getgrgid would
+	  not return the first entry in the order of Etc.group for shared GID.
+	  [ruby-core:47312] [Bug #6935]
+
+Mon Aug 27 18:19:36 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h (rb_float_value): optimize it.
+	  This technique was pointed by shinichiro.hamaji
+	  <http://shinh.skr.jp/m/?date=20120825#p02>.
+
+Mon Aug 27 15:08:25 2012  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* common.mk (vm_trace.o): Added a missing dependency.
+
+Sun Aug 26 09:29:32 2012  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* nacl/GNUmakefile.in (package): make package should install
+	  example.html for nacl build
+
+	Patch by Takashi Toyoshima <toyoshim AT gmail.com>.
+
+Sun Aug 26 09:22:33 2012  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* nacl/GNUmakefile.in (CC, LD, NM, AR, AS, RANLIB, OBJDUMP, OBJCOPY)
+	  Rewrites these variables instead of PATH.
+	  NaCl port uses a toolchain which is specified by NACL_SDK_ROOT
+	  environment variable. Originally, NaCl build added the toolchain
+	  under the NACL_SDK_ROOT to the PATH. But updating PATH doesn't work
+	  on Mac.
+	  (RBCONFIG): Replaces configs with the variable updates above.
+
+	* configure.in: Thus it is no longer necessary to check $PATH.
+
+	Based on a patch by Takashi Toyoshima <toyoshim AT gmail.com>.
+
+Sun Aug 26 16:53:00 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* insns.def (checkmatch): suppress warnings.  [ruby-core:47310]
+	  [Bug #6930]
+
+	* vm_core.h (VM_FRAME_TYPE_FINISH_P): ditto.
+
+Fri Aug 24 15:42:28 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (create_makefile): use timestamp for destination
+	  directories to make them before making or copying files there.
+	  [ruby-dev:46067] [Bug #6904]
+
+Fri Aug 24 12:40:15 2012  Luis Lavena  <luislavena@gmail.com>
+
+	* configure.in (mingw): add shlwapi to the list of dependency
+	  libs for Windows.
+	* win32/Makefile.sub (EXTSOLIBS): ditto.
+
+	* internal.h: declare internal functions rb_w32_init_file,
+	  rb_file_expand_path_internal and rb_file_expand_path_fast.
+
+	* file.c (Init_File): invoke Windows initialization rb_w32_init_file
+
+	* win32/file.c (rb_file_load_path_internal): new function.
+	  Windows-specific implementation that replaces file_expand_path.
+	  [Bug #6836][ruby-core:46996]
+
+	* win32/file.c (rb_w32_init_file): new function. Initialize codepage
+	  cache for faster conversion encodings lookup.
+
+	* file.c (file_expand_path): rename to rb_file_expand_path_internal.
+	  Conditionally exclude from Windows.
+
+	* file.c (rb_file_expand_path_fast): new function. delegates to
+	  rb_file_expand_path_internal without performing a hit to the
+	  filesystem.
+
+	* file.c (file_expand_path_1): use rb_file_expand_path_internal without
+	  path expansion (used by require).
+	* file.c (rb_find_file_ext_safe): ditto.
+	* file.c (rb_find_file_safe): ditto.
+
+	* load.c (rb_get_expanded_load_path): use rb_file_expand_path_fast.
+	* load.c (rb_feature_provided): ditto.
+
+	* file.c (rb_file_expand_path): use rb_file_expand_path_internal with
+	  path expansion.
+	* file.c (rb_file_absolute_path): ditto.
+
+	* test/ruby/test_file_exhaustive.rb: new tests to exercise
+	  rb_file_expand_path_internal implementation and compliance with
+	  existing behaviors.
+
+Fri Aug 24 07:35:24 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/http/backward.rb (class Net):  Restored Net::HTTPSession to
+	  fix backwards-compatibility with ancient Net::HTTP.  [Bug #6889]
+
+Thu Aug 23 20:58:55 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* common.mk: support `make id.h` without `rm .id.h.time` after
+	  `rm id.h`.
+
+Thu Aug 23 20:48:45 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_fixnum.rb (TestFixnum#test_singleton_method): new test.
+
+	* test/ruby/test_bignum.rb (TestBignum#test_singleton_method): ditto.
+
+	* test/ruby/test_float.rb (TestFloat#test_singleton_method): ditto.
+
+	* test/ruby/test_symbol.rb (TestSymbol#test_singleton_method): ditto.
+
+Thu Aug 23 20:34:32 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* class.c (singleton_class_of): flonum can't have singleton class.
+
+	* vm.c (vm_define_method): flonum can't have singleton method.
+
+Thu Aug 23 19:18:33 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* common.mk (win32/*): macro RUBY_H_INCLUDES is not defined there,
+	  so need to move dependency rules under the definition of it.
+
+Thu Aug 23 19:16:20 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/Makefile.sub: refactoring.  remove unused rules, and update
+	  some rules which are not used usually to fit current macros.
+
+Thu Aug 23 16:46:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (rb_find_file_ext_safe, rb_find_file_safe): default to
+	  US-ASCII for encdb and transdb.
+
+	* load.c (search_required): keep encoding of feature name.  set
+	  loading path to filesystem encoding.  [Bug #6377][ruby-core:44750]
+
+	* ruby.c (add_modules, require_libraries): assume default external
+	  encoding as well as ARGV.
+
+Thu Aug 23 16:20:04 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: introduce flonum technique for
+	  64bit CPU environment (sizeof(double) == sizeof(VALUE)).
+	  flonum technique enables to avoid double object creation
+	  if the double value d is in range about between
+	  1.72723e-77 < |d| <= 1.15792e+77 or 0.0.
+	  flonum Float value is immediate and their lowest two bits
+	  are b10.
+	  If flonum is activated, then USE_FLONUM macro is 1.
+	  I'll write detailed in this technique on
+	  https://bugs.ruby-lang.org/projects/ruby-trunk/wiki/Flonum_tech
+
+	* benchmark/bmx_temp.rb: add an benchmark for simple
+	  Float calculation.
+
+	* gc.c (id2ref, rb_obj_id): add flonum Float support.
+
+	* include/ruby/intern.h: move decl of rb_float_new(double)
+	  to include/ruby/ruby.h.
+
+	* insns.def, vm.c, vm_insnhelper.c: add flonum optimization
+	  and simplify source code.
+
+	* vm_insnhelper.h (FLONUM_2_P): added.
+
+	* marshal.c: support flonum output.
+
+	* numeric.c (rb_float_new_in_heap): added.
+
+	* parse.y: support flonum.
+
+	* random.c: ditto.
+
+Thu Aug 23 16:12:40 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/mkmf.rb (create_makefile): add dependency to header files when
+	  depend files don't exist.  now we can remove simple (and often
+	  wrong) depend files in most cases.
+
+Thu Aug 23 16:02:20 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/date/depend: add dependency to $(ruby_headers).
+
+Thu Aug 23 12:51:39 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* insns.def (invokesuper): reverted r36640 partially to make super
+	  in a thread work correctly. [ruby-core:47284] [Bug #6907]
+
+	* test/ruby/test_super.rb: related test.
+
+Thu Aug 23 12:30:20 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/configure.bat: support --with(out)?-ext(ensions) options.
+
+Thu Aug 23 11:52:04 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: Fixing Haiku build.
+	  - -lbe is not required for linking
+	  - stack protector doesn't work for now because of the default gcc's
+	    bug
+	  by Takashi Toyoshima <toyoshim@gmail.com>
+	  https://github.com/ruby/ruby/pull/167
+
+	* signal.c (ruby_signal): haiku doesn't have SIGBUS.
+
+Thu Aug 23 11:32:44 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/open-uri/test_open-uri.rb (TestOpenURI#test_read_timeout): this
+	  test expects that the server thread will be killed in sleep, but 0.01
+	  sec is too short to reach there.
+
+Thu Aug 23 10:49:28 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: use the value of --with-opt-dir on building ruby
+	  itself. [ruby-dev:46064] [Bug #6900]
+
+Thu Aug 23 10:36:35 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* common.mk (ID_H_TARGET): revert a part of r36724 and r36751.  they
+	  break mswin build from clean source.
+
+Thu Aug 23 02:37:35 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/syck: removed. Fixes [ruby-core:43360]
+
+	* test/syck: removed.
+
+	* lib/yaml.rb: only require psych, show a warning if people try to set
+	  the engine to syck.
+
+Thu Aug 23 01:46:53 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* insns.def: search up the cf stack for an object that is an instance
+	  of the recipient class.  Fixes [ruby-core:47186]
+
+	* test/ruby/test_super.rb: related test.
+
+Wed Aug 22 19:46:24 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: [ruby-core:47266].
+
+Wed Aug 22 19:41:19 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: [ruby-core:47226].
+
+Wed Aug 22 16:57:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (configuration): extract least ruby headers list as
+	  ruby_headers, so depend files can use default dependency
+	  explicitly.
+
+Wed Aug 22 15:27:50 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (vm_setup_method): fix last commit of
+	  vm_insnhelper.c (r36771). [ruby-dev:46065] [Bug #6901]
+	  Should not disable tail call opt on FINISH_FRAME.
+	  This flag should be propagated correctly.
+
+Wed Aug 22 14:05:23 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c: support TracePoint. [ruby-trunk - Feature #6895]
+
+	* test/ruby/test_settracefunc.rb: add tests for above.
+
+	* proc.c (rb_binding_new_with_cfp): add an internal function.
+
+	* vm.c (rb_vm_control_frame_id_and_class): add an internal function.
+
+	* vm_trace.c: add rb_add_event_hook2() and rb_thread_add_event_hook2().
+	  Give us the good name for them!
+
+Wed Aug 22 11:38:16 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* .travis.yml (before_script): Turned out that make -j is broken.
+
+Wed Aug 22 11:23:35 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_setup_method): should not enable tail call
+	  optimization for frames with VM_FRAME_FLAG_FINISH.
+	  [ruby-dev:46065] [Bug #6901]
+
+Wed Aug 22 11:20:47 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/rubygems/test_case.rb: run test with psych if exist.
+
+Thu Aug 16 12:09:51 2012  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* nacl/pepper_main.c (init_loadpath): Pushes the correct load path on
+	  other architectures than x86_64. Fixes #6873.
+
+Wed Aug 15 19:37:33 2012  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* configure.in (ac_cv_func_shutdown): shutdown(2) has a dummy
+	  implementation but has no declaration and does not work in
+	  NativeClient SDK pepper_20.
+
+Wed Aug 15 19:29:29 2012  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* common.mk (vm_backtrace.o): Added missing dependencies.
+
+	* ext/nkf/depend (nkf.o): ditto.
+
+	* ext/ripper/depend (ripper.o) ditto.
+
+Wed Aug 22 07:27:00 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/cgi/util.rb (CGI.escapeHTML): use &#39;
+	  [ruby-core:47221] [Bug #6861]
+
+Tue Aug 21 21:59:22 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* lib/observer.rb: fix typo. https://github.com/ruby/ruby/pull/162 by
+	  unsymbol (Philip Cunningham).
+
+Tue Aug 21 20:30:06 2012  Benoit Daloze  <eregontp@gmail.com>
+
+	* test/fileutils/test_fileutils.rb (TestFileUtils#teardown):
+	  do not assume cwd is TMPROOT and never remove current directory.
+	  [ruby-core:47224][Bug #6884]
+
+Tue Aug 21 17:29:56 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* addr2line.c (fill_lines): need check and cast of the file size of
+	  target binary because there are some platforms which off_t > size_t.
+
+Tue Aug 21 17:07:58 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* .travis.yml (compiler): [experimental] clang support.
+
+Tue Aug 21 15:44:27 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/dl/lib/dl/func.rb (DL::Function#bind): fixes an error in
+	  test/dl/test_import.rb (DL::TestImport#test_carried_function)
+	  introduced by r36718.
+	  the instance of the anonymous class which wraps the block should have
+	  same methods and instance variables of self.
+
+Tue Aug 21 14:29:22 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/Makefile.sub (scriptbin.mk): no need to include twice.
+
+Tue Aug 21 10:52:08 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/unit/test.rb (Test::Unit::ProxyError): new exception class to
+	  wrap exceptions raised in workers in parallel test mode.
+
+	* test/unit/parallel.rb (Test::Unit::Worker#puke): use above wrapper
+	  exception.
+	  [Bug #6882] [ruby-dev:46054]
+
+Tue Aug 21 10:40:06 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* test_continuation.rb (tracing_with_thread_set_trace_func):
+	  fix to use Thread#set_trace_func(nil), not set_trace_func(nil).
+
+Tue Aug 21 09:32:41 2012  Ryan Davis  <ryand-ruby@zenspider.com>
+
+	* lib/minitest/*: Imported minitest 3.3.0 (r7676)
+	* test/minitest/*: ditto
+
+Tue Aug 21 09:05:32 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/testunit/tests_for_parallel/ptest_forth.rb: added a test case
+	  which causes an error.
+
+	* test/testunit/test_parallel.rb: follow above change.
+	  see [Bug #6882]
+
+Tue Aug 21 05:43:00 2012  James Edward Gray II  <james@graysoftinc.com>
+
+	* lib/csv.rb: Fixes #161 on github
+	* lib/csv.rb: You can now specify a pattern for :skip_lines.
+	  Matching lines will not be passed to the CSV parser.
+	* lib/csv.rb: Patch by Christian Schwartz.
+
+Tue Aug 21 05:25:41 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* re.c (rb_reg_initialize_m): Forgot to update output for or'd-options
+	  example.
+
+Tue Aug 21 05:18:03 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* re.c (rb_reg_initialize_m): Update example to show that regexp
+	  options use | an not || to avoid confusion.
+
+Mon Aug 20 23:02:27 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y: more descriptive token names in syntax error messages.
+
+Mon Aug 20 20:36:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_call_method): follow iclasses as klass in cfp
+	  but not included modules.  [ruby-core:47241] [Bug #6891]
+
+	* vm_insnhelper.c (vm_call_bmethod): pass defined_class to follow
+	  proper ancestors.  [ruby-core:47241] [Bug #6891]
+
+Mon Aug 20 11:40:27 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* common.mk: fix failed to make with -j2.
+	  https://gist.github.com/3397935
+
+Mon Aug 20 10:51:01 2012  Shota Fukumori  <sorah@tubusu.net>
+
+	* lib/test/unit.rb, lib/test/unit/parallel.rb:
+	  generate error message (String) in parallel.rb instead of
+	  marshalling Exception. Fixes [Bug #6882] [ruby-dev:46054]
+
+Sun Aug 19 01:24:32 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* enum.c: fix docs. https://github.com/ruby/ruby/pull/129 by
+	  richardkmichael (Richard Michael).
+
+Sun Aug 19 00:47:26 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* lib/fileutils.rb: fix typo.
+	  https://github.com/ruby/ruby/pull/155 by simonc (Simon COURTOIS).
+
+Sat Aug 18 09:57:46 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enc/depend: fix inplace-build condition.  enc.mk is generated with
+	  setting $srcdir to enc, but pwd is still top build directory.
+	  [ruby-core:47236] [Bug #6888]
+
+Fri Aug 17 23:28:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_any_to_s, rb_obj_inspect): preserve encodings of class
+	  name and instance variable names.
+
+Fri Aug 17 12:39:33 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/dl/lib/dl/func.rb (DL::Function#bind): allow to return/break from
+	  the callback method. (Fiddle already allows it.)
+	  [Bug #6389] [ruby-dev:45604]
+
+Thu Aug 16 19:54:24 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c, vm_core.h: simplify tracing mechanism.
+
+	  (1) add rb_hook_list_t data structure which includes
+	      hooks, events (flag) and `need_clean' flag.
+	      If the last flag is true, then clean the hooks list.
+	      In other words, deleted hooks are contained by `hooks'.
+	      Cleanup process should run before traversing the list.
+	  (2) Change check mechanism
+	      See EXEC_EVENT_HOOK() in vm_core.h.
+	  (3) Add `raw' hooks APIs
+	      Normal hooks are guarded from exception by rb_protect().
+	      However, this protection is overhead for too simple
+	      functions which never cause exceptions.  `raw' hooks
+	      are executed without protection and faster.
+	      Now, we only provide registration APIs.  All `raw'
+	      hooks are kicked under protection (same as normal hooks).
+
+	* include/ruby/ruby.h: remove internal data definition and
+	  macros.
+
+	* internal.h (ruby_suppress_tracing), vm_trace.c: rename
+	  ruby_suppress_tracing() to rb_suppress_tracing()
+	  and remove unused function parameter.
+
+	* parse.y: fix to use renamed rb_suppress_tracing().
+
+	* thread.c (thread_create_core): no need to set RUBY_VM_VM.
+
+	* vm.c (mark_event_hooks): move definition to vm_trace.c.
+
+	* vm.c (ruby_vm_event_flags): add a global variable.
+	  This global variable represents all of Threads and VM's
+	  event masks (T1#events | T2#events | ... | VM#events).
+	  You can check the possibility kick trace func or not
+	  with ruby_vm_event_flags.
+	  ruby_vm_event_flags is maintained by vm_trace.c.
+
+	* cont.c (fiber_switch, rb_cont_call): restore tracing status.
+	  [Feature #4347]
+
+	* test/ruby/test_continuation.rb: ditto.
+
+Thu Aug 16 19:15:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_class_initialize): forbid inheriting uninitialized
+	  class.  another class tree not based on BasicObject cannot exist.
+	  [ruby-core:47148][Bug #6863]
+
+Thu Aug 16 11:52:06 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/-ext-/test_printf.rb (Test_SPrintf#test_{taint,untrust}): use
+	  plain object so that the results of to_s and inspect are infected.
+	  [ruby-dev:46053] [Bug #6881]
+
+Thu Aug 16 09:46:07 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* strftime.c: remove unnecessary macros to check traditional C.
+	  https://github.com/ruby/ruby/pull/46 by lateau (Daehyub Kim).
+
+	* vsnprintf.c: remove K&R.
+
+Wed Aug 15 20:47:49 2012  Benoit Daloze  <eregontp@gmail.com>
+
+	* object.c (rb_obj_inspect): Kernel#inspect: do not call #to_s. A class
+	  can now benefit from the nice default #inspect even if it defines #to_s.
+	  Also, there is no more unexpected change in #inspect result.
+
+	* NEWS: Add note about the change.
+
+	* bignum.c, io.c, numeric.c, object.c, proc.c, vm.c (Init_*):
+	  Adapt internal structures (by aliasing #inspect to #to_s) so they
+	  don't rely on the removed behavior (#inspect calling overridden #to_s).
+
+	* test/ruby/test_object.rb (test_inspect): add tests for Kernel#inspect.
+
+	* lib/pp.rb (class PP): do not call #to_s anymore, as #inspect
+	  no more does (mame).
+
+	* test/test_pp.rb (class PPInspectTest): remove related assertion (mame).
+	  [ruby-core:43238][Feature #6130]
+
+	* test/drb/drbtest.rb (DRbCore#teardown, DRbAry#teardown):
+	  adapt DRb tests with the new change (shirosaki).
+	  [ruby-core:47182][Bug #6866]
+
+Wed Aug 15 18:05:37 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/test/unit.rb (Test::Unit::Runner#failed): need to delete the
+	  status line if the status is skipped and -q is specified.
+
+Wed Aug 15 16:26:52 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* sprintf.c (ruby__sfvextra): the result should be infected by the
+	  given strings.
+
+	* sprintf.c (ruby__sfvwrite): set buffer length and exclude
+	  uninitialized garbage to get correct coderange.
+
+Wed Aug 15 16:20:09 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (ID_H_TARGET): make timestamp file of id.h so that the
+	  header will not be remade repetitively.
+
+Wed Aug 15 11:39:53 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c: separate trace_func related functions from
+	  thread.c.
+
+	* thread.c: ditto.
+
+	* common.mk: add vm_trace.o.
+
+	* inits.c: call Init_vm_trace().
+
+Tue Aug 14 16:25:46 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* test/erb/test_erb.rb (test_html_escape): add assertions for the
+	  cases where the argument is not a String.
+
+Tue Aug 14 16:03:31 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (check_valid_dir): reject "..." as directory name.
+	  [Bug #6851]
+
+Tue Aug 14 16:02:51 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_file_exhaustive.rb
+	  (TestFileExhaustive#test_stat_dotted_prefix): added.
+
+Tue Aug 14 15:39:09 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_file_exhaustive.rb
+	  (TestFileExhaustive#test_stat_drive_root): added.
+
+Tue Aug 14 10:38:17 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/erb.rb (ERB::Util.html_escape): fix r36687: call to_s before
+	  passing it to CGI.escapeHTML.
+
+Mon Aug 13 13:13:19 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/erb.rb (ERB::Util.html_escape): use CGI.escapeHTML to escape
+	  single quotes. [ruby-core:47138] [Bug #6861]
+
+Sun Aug 12 11:57:20 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm.c (invoke_block_from_c): fix unintentional block passing.
+	  [ruby-dev:45071] [Bug #5832]
+
+Fri Aug 10 08:41:28 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* gc.c (gc_malloc_allocated_size):  RDoc does not process macros, so
+	  mention this method is only available when ruby is built with
+	  CALC_EXACT_MALLOC_SIZE
+	* gc.c (gc_malloc_allocations):  ditto
+
+Thu Aug  9 23:46:51 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/mkrunnable.rb: see build_os instead of target arch for
+	  cross-compiling.
+
+	* configure.in (MINIRUBY): use real path for include path.
+
+	* template/fake.rb.in (builddir): remove duplications
+
+Thu Aug  9 20:03:11 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/ruby/test_file_exhaustive.rb
+	  (TestFileExhaustive#test_stat_special_file): add a test.
+	  GetFileAttributesExW fails to get attributes of special files
+	  such as pagefile.sys.
+
+	* win32/win32.c (check_valid_dir): for performance, check the path
+	  by FindFirstFileW only if the path contains "..."
+
+	* win32/win32.c (winnt_stat): use GetFileAttributesExW instead of
+	  FindFirstFileW since GetFileAttributesExW is faster.
+	  Based on the patch by Dusan D. Majkic.
+	  [ruby-core:47083] [Feature #6845]
+
+Thu Aug  9 18:33:46 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ruby.c (proc_options): show version only once even if -v and
+	  --version are given together.
+	  http://twitter.com/d6rkaiz/status/233491797085671424
+
+Thu Aug  9 12:37:22 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/openssl/test_config.rb (OpenSSL#test_constants): skip this
+	  test if platform is Mac OS X or Windows. [Bug #6830]
+
+Wed Aug  8 22:51:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (eval_under): singletons other than special constants
+	  don't need cref-scope hack.
+
+Wed Aug  8 22:45:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (.y.h): split from .y.c rule to manage dependency on
+	  parse.h.  [ruby-core:46741] [Bug #6789]
+
+	* common.mk (id.h): keep old file unless changed.
+
+Wed Aug  8 17:11:20 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (ADD_INSNL): make ADD_INSNL as alias of ADD_INSN1.
+
+Wed Aug  8 17:08:14 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* bootstrap/test_exception.rb: fix a last committed test.
+
+Wed Aug  8 16:27:58 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c, insns.def (checkmatch):
+	  remove checkincludearray instruction and
+	  add new instruction checkmatch.
+	  This change is to solve
+	  [Bug #4438] "rescue args type check omitted".
+
+	* iseq.c: increment ISEQ_MAJOR_VERSION because removal of
+	  checkincludearray instruction.
+
+	* vm_core.h: add several definitions for
+	  the checkmatch instruction.
+
+	* vm_insnhelper.c (check_match): added.
+
+	* bootstraptest/test_exception.rb: add a test.
+
+	* test/ruby/test_exception.rb: ditto.
+
+Wed Aug  8 05:51:20 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* proc.c (method_clone):  Added documentation.  Patch by Robin Dupret.
+	  Fixes #152 on github.
+
+Tue Aug  7 20:19:29 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/readline/readline.c (Init_readline): rl_catch_signals=0 returns
+	  back. Without this, on FreeBSD9 and readline 6.2 irb can't catch ^C.
+	  [Bug #5423]
+
+Tue Aug  7 20:12:39 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_exec.c, insns.def (leave): solve problems on
+	  OPT_CALL_THREADED_CODE.
+	  Catch up finish frame structure on OPT_CALL_THREADED_CODE.
+
+	* vm_core.h: add rb_thread_t#retval for temporary space on
+	  OPT_CALL_THREADED_CODE.
+
+	* vm.c (th_init): clear rb_thread_t#retval as Qundef.
+
+	* vm_dump.c (rb_vmdebug_debug_print_pre): fix debug print format.
+
+Tue Aug  7 11:58:27 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_require.rb (TestRequire#test_require_twice): added.
+
+Tue Aug  7 11:35:37 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_method.c (rb_redefine_opt_method): use RCLASS_ORIGIN to avoid
+	  SEGV when a module-prepended class is refined.
+
+Tue Aug  7 10:46:37 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_file_exhaustive.rb
+	  (TestFileExhaustive#test_expand_path*): refactoring.  split the method
+	  into some chunks of the same kind of tests.
+
+Tue Aug  7 00:31:09 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (rb_special_singleton_class_of): utility function.
+
+	* vm_eval.c (eval_under): special deal for class variable scope with
+	  instance_eval.
+
+	* vm_eval.c (rb_obj_instance_eval, rb_obj_instance_exec): allow method
+	  definition in instance_eval of special constants.  [ruby-core:28324]
+	  [Bug #2788]
+
+Tue Aug  7 00:23:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* variable.c (CVAR_LOOKUP): split into helper functions.
+
+Mon Aug  6 19:15:11 2012  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* test/win32ole/test_win32ole_variant.rb: setting WIN32OLE.locale
+	  to pass some assertion.  Thanks to Hiroshi Shirosaki.
+	  [ruby-core:46873][Bug #6814]
+
+Mon Aug  6 15:54:50 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* internal.h, class.c, eval.c, insns.def: find the appropriate
+	  receiver for super called in instance_eval.  If such a receiver is
+	  not found, raise NoMethodError. [ruby-dev:39772] [Bug #2402]
+
+Mon Aug  6 14:54:38 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* include/ruby/ruby.h, eval.c, vm_insnhelper.c: fix typo.
+
+Mon Aug  6 13:13:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (vm_call_super): since cfp->klass is always class or
+	  iclass, no search from method entry.
+
+	* insns.def (defined): now should use klass in the current control
+	  frame to search superclass, not me->klass.  reported by naruse.
+
+Mon Aug  6 11:19:19 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/etc/test_etc.rb (TestEtc#test_getpwuid): `s' is never set to nil.
+
+Mon Aug  6 11:08:48 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/syslog/test_syslog_logger.rb: skip unless Syslog module is
+	  available.
+
+Mon Aug  6 00:40:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/bigdecimal/bigdecimal.c (BigMath_s_log): fix format specifier.
+
+Mon Aug  6 00:39:24 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (NUM2ULONG): optimize by inline as well as
+	  NUM2LONG, and cast to unsigned long explicitly for the platforms
+	  where SIZEOF_VALUE is larger than SIZEOF_LONG.
+
+	* include/ruby/ruby.h (NUM2SSIZET): fix type to cast.
+
+Sun Aug  5 21:10:36 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c : if ENABLE_VM_OBJSPACE is 1, rest_sweep is not defined.
+	  remove unused declarations. [ruby-core:47004] [Bug #6837]
+
+Sun Aug  5 19:31:57 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c: just move functions and so on. I don't touch any internal
+	  implementation.
+
+Sun Aug  5 13:22:29 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: use gcc-4.2 prior to clang, gcc, and cc if exist for
+	  the use of Snow Leopard's old clang. see also r36594, r36610, r36611.
+
+Sun Aug  5 06:55:10 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_{core,strftime}.c: [ruby-core:46990].
+
+Sat Aug  4 22:56:20 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c: use inline functions instead of macros, and close up
+	  related codes for the profiler.
+
+Sat Aug  4 20:37:56 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (gc_mark_children): use gc_mark_ptr instead of marking
+	  a object directly.
+
+Sat Aug  4 10:02:03 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* test/ruby/test_alias.rb (test_super_in_aliased_module_method):
+	  add a test case for [ruby-dev:46028], which fails in 1.8.
+
+Sat Aug  4 01:56:06 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_search_normal_superclass): no longer needs
+	  receiver, klass is always unique in the ancestors now.
+
+Sat Aug  4 01:27:40 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* insns.def (invokesuper): reverted r36612 so that super in an
+	  aliased method will not call the same method.
+
+Fri Aug  3 19:26:10 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* insns.def (invokesuper): don't skip the same class.  instead, use
+	  rb_method_entry_get_with_omod() to avoid infinite loop when
+	  super is used with refinements. [ruby-core:30450] [Bug #3351]
+
+Fri Aug  3 19:21:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: use clang prior to gcc only when self-compiling on
+	  darwin.  search default compilers on other platforms.  [Bug #6816]
+
+Fri Aug  3 17:25:49 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: move RUBY_MINGW32 after AC_PROG_CC.
+	  RUBY_MINGW32 uses AC_TRY_CPP and it sets CC and CPP. [Bug #6816]
+
+	* configure.in: don't use AC_PROG_CC in AS_CASE.
+
+Fri Aug  3 17:21:52 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/runner.rb: get rid of loading previously installed gems.
+	  [ruby-dev:46025]
+
+Fri Aug  3 16:40:01 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* .travis.yml (notifications): [experimental] IRC notifications.
+
+Thu Aug  2 20:32:29 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (rb_mod_using): new method Module#using. [experimental]
+
+	* eval.c (rb_mod_refine): new method Module#refine. [experimental]
+
+	* eval.c (f_using): new method Kernel#using. [experimental]
+
+Thu Aug  2 20:08:02 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* class.c, insns.def, method.h, proc.c, vm.c, vm_core.h, vm_eval.c,
+	  vm_insnhelper.c, vm_insnhelper.h, vm_method.c: add klass to
+	  rb_control_frame_t to implement super correctly.
+
+Thu Aug  2 13:23:08 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in (AC_PROG_CC): AC_PROG_CC tries clang at first on
+	  darwin. [Bug #6816]
+
+Thu Aug  2 11:39:25 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c: return true or false. Patch by Dirkjan Bussink. [Bug #6821]
+
+	* test/ruby/test_gc.rb: add test-case for this bug.
+
+Thu Aug  2 10:51:12 2012  Martin Bosslet  <Martin.Bosslet@gmail.com>
+
+	* ext/openssl/lib/openssl/digest.rb
+	  test/openssl/test_digest.rb: Add Digest module function to OpenSSL
+	  module and test it. Patch provided by Eric Hodel.
+	  [ruby-core:46908][Feature #6819]
+
+Wed Aug  1 22:29:12 2012  Benoit Daloze  <eregontp@gmail.com>
+
+	* ext/digest/digest.c (hexencode_str_new): return an ASCII string
+
+	* test/digest: tests for all kind of digests encodings
+	  [ruby-core:46792][Bug #6799]
+
+Wed Aug  1 05:50:53 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/ruby/test_rubyoptions.rb (TestRubyOptions#test_encoding):
+	  Fix test_encoding failure on Windows.
+	  With chcp 65001, 1252 and 437, test_encoding failed. Test result
+	  depends on locale because LANG environment variable doesn't affect
+	  locale on Windows.
+	  [ruby-core:46872] [Bug #6813]
+
+Wed Aug  1 00:33:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (include_class_new): fix duplication of prepended module.
+	  since m_tbl of prepended module is always zero, copy from its
+	  copy iclass of original.
+
+Tue Jul 31 18:22:34 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* variable.c (classname): tell if found name is permanent.  search
+	  tmp_classpath only if class id is set.  [ruby-core:42865][Bug #6078]
+
+	* variable.c (rb_class_path): duplicate found temporary path.
+
+	* variable.c (rb_set_class_path_string, rb_set_class_path): set class
+	  id to find classpath.
+
+Tue Jul 31 10:36:12 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb: updated to released version.
+
+	* ext/psych/psych.gemspec: ditto
+
+Tue Jul 31 06:18:06 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* time.c (time_sec):  Remove extra wording about leap seconds and refer
+	  directly to Wikipedia's leap second page for further information.
+	  [Bug #6749]
+
+Mon Jul 30 23:01:47 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/rubygems/platform.rb (Gem::Platform#initialize): Support pattern
+	  like x86_64-netbsd6.99.7.
+
+Mon Jul 30 21:00:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* variable.c (find_class_path): no retry when preferred is given.
+
+	* variable.c (classname): if classid is set try it to find full
+	  qualified class path, and then try arbitrary class path.  try
+	  tmp_classpath at last even if enclosing namespace is anonymous.
+	  fix r36574.  [ruby-core:42865][Bug #6078]
+
+	* variable.c (rb_set_class_path_string, rb_set_class_path): set
+	  tmp_classpath instead of classpath if the name is not permanent.
+
+Mon Jul 30 14:24:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* variable.c: store anonymous class path in tmp_classpath but not in
+	  classpath.  [ruby-core:42865][Bug #6078]
+
+Mon Jul 30 13:11:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (DLDFLAGS): on Darwin, deprecate -flat_namespace to get
+	  rid of huge imported symbols table.
+
+	* configure.in (LIBRUBY_RELATIVE): libruby_so is not made when
+	  disable-shared, so no absolute path is used for it and executable
+	  file is runnable anywhere.
+
+Mon Jul 30 01:30:10 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* common.mk: add a dependency. [ruby-core:46741] [Bug #6789]
+
+Sun Jul 29 15:44:47 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* thread.c (thread_create_core): hide th->async_errinfo_mask_stack from
+	  ObjectSpace.each_object. refix of r36539.
+
+Sun Jul 29 23:57:27 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/socket/option.c (inet_ntop): use rb_w32_inet_ntop, instead of
+	  inet_ntop directly, which is unavailable on older version Windows.
+
+	* win32/win32.c (rb_w32_inet_ntop): type should be const.
+
+Sun Jul 29 14:20:34 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* thread.c (Init_Thread): does not need to set klass
+	  explicitly.
+
+Sun Jul 29 06:21:04 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* win32/win32.c: suppress warning redeclared on mingw64.
+	  *_s functions are declared if MINGW_HAS_SECURE_API is defined.
+	  Follow up r36556.
+
+Sun Jul 29 00:28:46 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c: remove unused initialization.
+
+Sat Jul 28 16:26:09 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* win32/win32.c (gmtime_r): use _gmtime64_s() with x86_64-w64-mingw32.
+
+	* win32/win32.c (localtime_r): use _localtime64_s() with
+	  x86_64-w64-mingw32. Since FileTimeToSystemTime() seems not work with
+	  large value under x64. Mingw-w64 doesn't have these declaration.
+	  [ruby-core:46780] [Bug #6794]
+
+Fri Jul 27 18:25:51 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_io_check_io): make public.
+
+	* process.c (check_exec_redirect): try conversion to IO on redirect
+	  parameters.  [ruby-core:44181] [Bug #6269]
+
+Fri Jul 27 17:58:12 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (RUBY_CPPOUTFILE): get rid of variable conflict so
+	  CPPFLAGS is not duplicated.  [ruby-core:43097] [Bug #6119]
+
+Fri Jul 27 12:12:36 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/mkexports.rb: should not export DllMain().
+	  reported by luis at [ruby-core:46743] [Bug #6790], solved by
+	  Heesob Park, and confirmed by nobu.
+
+Thu Jul 26 14:51:29 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* test/net/http/test_https.rb (TestNetHTTPS#test_session_reuse):
+	  localhost is not (always) 127.0.0.1.  Don't expect that.
+
+Thu Jul 26 07:18:38 2012    <kanemoto@ruby-lang.org>
+
+	* ext/json/fbuffer/fbuffer.h: avoid compilation error on AIX by
+	   -ansi -std=iso9899:199409 (r36038). [ruby-core:46744] [Bug #6791].
+
+Thu Jul 26 00:42:23 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* thread.c (thread_create_core, Init_Thread): hide
+	  th->async_errinfo_queue and th->async_errinfo_mask_stack from
+	  ObjectSpace.each_object.
+
+Wed Jul 25 17:41:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* complex.c, rational.c: compatible marshal loader for compatibilities
+	  with 1.8.  [ruby-core:45775] [Bug #6625]
+
+Wed Jul 25 17:17:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* atomic.h: prefer GCC atomic builtins than Windows APIs, if possible,
+	  since they are generic.
+
+Wed Jul 25 11:16:57 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/.document:  Removed.  All files in net/ should be included in
+	  RDoc.
+
+Wed Jul 25 10:00:23 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/testunit/test_redefinition.rb: broken class/method names.
+
+Wed Jul 25 09:26:32 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/cgi/html.rb: Use << instead of +=.
+	  `a += b` is syntax sugar of `a = a + b`; it creates a new string
+	  object. `a << b` is concatenation and doesn't create new object.
+
+Wed Jul 25 09:16:26 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/cgi/html.rb (element_init): suppress redefine warning.
+	  Don't define methods if they are already defined.
+
+Wed Jul 25 09:05:38 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/http.rb:  Added SSL session reuse across connections for a
+	  single instance to speed up connection.  [Feature #5341]
+	* NEWS:  ditto
+	* test/net/http/test_https.rb:  Tests for #5341
+
+Wed Jul 25 06:54:24 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/re.rdoc:  Fix spelling
+
+Wed Jul 25 06:49:12 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* re.c (rb_reg_s_last_match):  Update $~ to reference Regexp
+	  documentation about "special global variables".  [Bug #6723]
+
+Wed Jul 25 06:28:56 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* iseq.c:  Added documentation.  Patch by David Albert.  [Bug #6785]
+
+Wed Jul 25 03:05:06 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* parse.y: added symbols and qsymbols productions for %i and %I
+	  support. %i{ .. } returns a list of symbols without interpolation,
+	  %I{ .. } returns a list of symbols with interpolation.  Thanks to
+	  Josh Susser for inspiration of this feature. [Feature #4985]
+
+	* ext/ripper/eventids2.c: added ripper events for %i and %I.
+
+	* test/ripper/test_parser_events.rb: ripper tests
+
+	* test/ripper/test_scanner_events.rb: ditto
+
+	* test/ruby/test_array.rb: test for %i and %I behavior
+
+Tue Jul 24 23:34:43 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* include/ruby/win32.h (rb_w32_pow): add new function.
+	  We use powl() instead of broken pow() for x64-mingw32. This workaround
+	  fixes test failures related to floating point numeric.
+	  [ruby-core:46686] [Bug #6784]
+
+Tue Jul 24 15:01:24 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_socket, rb_w32_socketpair): remember the family
+	  in the high word of socklist value.
+
+	* win32/win32.c (overlapped_socket_io, recvmsg, sendmsg, setfl): follow
+	  above changes.
+
+	* win32/win32.c (rb_w32_getsockname): set remembered family to the
+	  argument when OS's function fails.
+
+Tue Jul 24 12:35:13 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_dir_m17n.rb: remove a garbage.
+
+	* test/ruby/test_dir_m17n.rb: convert from ascii-8bit to other encoding
+	  with 8bit bytes always fails.
+
+Tue Jul 24 12:32:18 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_dir_m17n.rb: sorry, typo.
+
+Tue Jul 24 12:13:26 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_dir_m17n.rb: refactoring. RE should be in the left side
+	  of the =~ operator, and compare the result with nil is meaningless.
+
+Tue Jul 24 11:35:20 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_pack.rb (test_pack_unpack_M): was redefined
+	  accidentally.
+
+Tue Jul 24 09:31:18 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Updated to RubyGems 1.8.24, a bugfix release.
+
+Tue Jul 24 08:30:15 2012  Luis Lavena  <luislavena@gmail.com>
+
+	* test/ruby/test_dir_m17n.rb (create_and_check_raw_file_name): add new
+	  helper method to ease encoding testing. Patch by Oleg Sukhodolsky.
+	  [ruby-core:46589][Bug #6765]
+
+	* test/ruby/test_dir_m17n.rb (test_filename_extutf8): use filesystem
+	  encoding when reading entries and comparing.
+
+	* test/ruby/test_dir_m17n.rb (test_filename_utf8_raw_name): removed.
+
+	* test/ruby/test_dir_m17n.rb (test_filename_utf8_raw_jp_name): split test.
+
+Tue Jul 24 08:09:30 2012  Luis Lavena  <luislavena@gmail.com>
+
+	* test/win32ole/test_win32ole_method.rb (is_ruby64?): Correct platform
+	  used to identify mingw-w64 (x64-mingw32). Patch by Hiroshi Shirosaki.
+	  [ruby-core:46651][Bug #6782]
+
+Tue Jul 24 07:22:58 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* time.c (time_sec):  Updated description of leap seconds for accuracy.
+	  Based on patch by Marcus Stollsteimer.  [Bug #6749]
+
+Tue Jul 24 07:03:11 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* string.c (rb_str_sub):  Fixed wording of documentation to match the
+	  replacement operation.  Minor cleanup of markup.  [Bug #6719]
+	* string.c (rb_str_sub_bang):  Minor wording change for clarity, minor
+	  cleanup of markup.
+
+Mon Jul 23 23:58:40 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enc/Makefile.in (TARGET_NAME, TARGET_ENTRY): needed for EXTDLDFLAGS
+	  on some platforms.  [ruby-core:46600] [Bug #6768]
+
+	* enc/depend: no longer needs tweaking DLDFLAGS for TARGET names.
+
+Mon Jul 23 22:48:19 2012  Tanaka Akira  <akr@fsij.org>
+
+	* lib/open-uri.rb: use respond_to? to test Tempfile.
+	  [ruby-dev:45995] [Bug #6781] reported by hsbt (Hiroshi SHIBATA).
+
+Mon Jul 23 14:43:34 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (LIBPATHENV): LIBPATH is used on AIX, but not
+	  SHLIB_PATH which was carelessly copied from HP/UX.  suggested by
+	  Perry Smith at [ruby-core:46397].  [Bug #6728]
+
+Mon Jul 23 01:55:08 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* test/uri/test_generic.rb (URI#test_find_proxy): add tests with
+	  empty *_proxy env variables.
+
+Mon Jul 23 01:47:26 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* test/uri/test_generic.rb (URI#with_env): unset proxy related env
+	  variables.  [Bug #6774]
+
+	* test/uri/test_generic.rb (URI#test_find_proxy): fix failures
+	  when proxy related env variables already set.  [Bug #6774]
+
+Sun Jul 22 23:58:48 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* thread.c (rb_threadptr_execute_interrupts_common): increase
+	  running_time_us on THREAD_TO_KILL like on THREAD_RUNNABLE.
+	  This cause not to switch from a thread which is to be killed
+	  on FreeBSD and Mac OS X. see also the test.
+	  This issue maybe exist for long time but happens after r36430.
+
+Sat Jul 21 06:21:45 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http.rb: fixes for r36476. [Feature #6546]
+	 http://u64.rubyci.org/~chkbuild/ruby-trunk/log/20120720T030101Z.diff.html.gz
+
+	* lib/net/http.rb (Net::HTTP.newobj): return back for compatibility.
+
+	* lib/net/http.rb (Net::HTTP.new): set default_port if proxy port is
+	  not given.
+
+	* lib/net/http.rb (Net::HTTP#initialize): ditto.
+
+	* lib/net/http.rb (Net::HTTP#proxy?): return true or false.
+
+	* lib/net/http.rb (Net::HTTP#proxy_address): check proxy_uri is not nil.
+
+	* lib/net/http.rb (Net::HTTP#proxy_port): ditto.
+
+Sat Jul 21 23:12:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread_pthread.c (ruby_init_stack): STACK_GROW_DIR_DETECTION is
+	  necessary on platforms with unknown stack direction.  [Bug #6761]
+
+Sat Jul 21 15:13:42 2012  Shota Fukumori  <sorah@tubusu.net>
+
+	* lib/test/unit/testcase.rb (method_added): refactoring.
+
+Sat Jul 21 14:06:41 2012  Shota Fukumori  <sorah@tubusu.net>
+
+	* lib/test/unit/testcase.rb: warn when test_* method is redefined.
+	  Patch by mame (Yusuke Endoh). [Feature #2643] [ruby-core:27790]
+
+	* test/testunit/test_redefinition.rb: Test for above.
+
+	* test/testunit/test4test_redefinition.rb: Ditto.
+
+Sat Jul 21 08:41:14 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/logger.rb:  Updated example in Logger comment to match other
+	  examples and fixed a bug.  Patch by Marcus Stollsteimer.
+	  [Bug #6759]
+
+Fri Jul 20 17:20:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* random.c (rb_random_real): refine error message.
+
+Fri Jul 20 11:03:17 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* NEWS:  Updated net/http for automatic proxy detection (#6546) and
+	  automatic gzip and deflate compression (#6492, #6494).
+
+Fri Jul 20 10:55:38 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/http.rb:  Net::HTTP now automatically detects and uses
+	  proxies from the environment.  A proxy may also be specified as
+	  before.
+
+	  Net::HTTP::Proxy still creates anonymous classes, but these classes
+	  are only used to store configuration information.  When an HTTP
+	  instance is created the configuration is now copied.
+
+	  Additionally, Net::HTTP::ProxyDelta is no longer used by Net::HTTP
+
+	  [Feature #6546]
+	* lib/open-uri.rb:  Moved URI::Generic#find_proxy to uri/generic.
+	* lib/uri/generic.rb:  Imported find_proxy from open-uri.
+	* test/open-uri/test_open-uri.rb:  Moved proxy-discovery tests to URI.
+	* test/uri/test_generic.rb:  Imported proxy-discovery tests from
+	  open-uri.
+	* test/net/http/test_http.rb:  Added tests for proxy behavior.
+
+Fri Jul 20 09:34:11 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* test/socket/test_socket.rb:  Ignore IPv6 unique local addresses on OS
+	  X (iCloud Back to my Mac addresses) for test_udp_socket since they do
+	  not act as loopback addresses.  [Bug #6692]
+
+Fri Jul 20 09:32:14 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/socket/raddrinfo.c (addrinfo_ipv6_unique_local_p):  Added
+	  Addrinfo#ipv6_unique_local? to detect RFC 4193 unique local
+	  addresses.  Part of #6692
+	* ext/socket/rubysocket.h:  Add IN6_IS_ADDR_UNIQUE_LOCAL macro if
+	  missing.
+	* test/socket/test_addrinfo.rb:  Test for ipv6_unique_local?
+
+Fri Jul 20 07:40:32 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/http/response.rb:  Automatically inflate gzip and
+	  deflate-encoded response bodies.  [Feature #6942]
+	* lib/net/http/generic_request.rb:  Automatically accept gzip and
+	  deflate content-encoding for requests.  [Feature #6494]
+	* lib/net/http/request.rb:  Updated documentation for #6494.
+	* lib/net/http.rb:  Updated documentation for #6492 and #6494, removed
+	  Content-Encoding handling now present in Net::HTTPResponse.
+	* test/net/http/test_httpresponse.rb:  Tests for #6492
+	* test/net/http/test_http_request.rb:  Tests for #6494
+	* test/open-uri/test_open-uri.rb (test_content_encoding):  Updated test
+	  for automatic content-encoding handling.
+
+Fri Jul 20 03:42:54 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* thread_pthread.c: use #ifdef, not #if.
+
+Thu Jul 19 15:08:40 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* thread.c (rb_thread_s_control_interrupt,
+	            rb_thread_s_check_interrupt): added for
+	  Thread.control_interrupt and Thread.check_interrupt.
+	  See details on rdoc.
+	  I'll make an ticket for this feature.
+
+	* test/ruby/test_thread.rb: add a test for Thread.control_interrupt.
+
+	* thread.c (rb_threadptr_raise): make a new exception object
+	  even if argc is 0.
+
+	* thread.c (rb_thread_kill): kill thread immediately if target thread
+	  is current thread.
+
+	* vm_core.h (RUBY_VM_CHECK_INTS_BLOCKING): added.
+	  CHECK_INTS while/after blocking operation.
+
+	* vm_core.h (RUBY_VM_CHECK_INTS): require rb_thread_t ptr.
+
+	* cont.c (fiber_switch): use replaced RUBY_VM_CHECK_INTS().
+
+	* eval.c (ruby_cleanup): ditto.
+
+	* insns.def: ditto.
+
+	* process.c (rb_waitpid): ditto.
+
+	* vm_eval.c (vm_call0): ditto.
+
+	* vm_insnhelper.c (vm_call_method): ditto.
+
+Thu Jul 19 22:46:48 2012  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_io.rb: remove temporally files early.
+
+Thu Jul 19 15:38:35 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* variable.c (rb_mod_class_variables): return inherited variables
+	  except when the optional argument is set to false.
+	  [ruby-dev:44034] [Bug #4971]
+
+	* variable.c (rb_mod_constants): fix typo in documentation.
+
+Thu Jul 19 14:30:43 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* internal.h: move mark function declarations that should be private.
+
+Thu Jul 19 14:18:22 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/socket/init.c (rsock_init_sock): need to update max fd on all
+	  platforms.
+
+Thu Jul 19 14:15:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread.c (rb_gc_mark_threads): remove deprecated function.
+
+Thu Jul 19 13:28:03 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/net/http/test_http.rb (TestNetHTTPLocalBind#test_bind_to_local*):
+	  re-enable the tests because now it's OK on windows.
+
+Thu Jul 19 13:26:25 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/socket/extconf.rb: now enable IPv6 by default on mswin.
+
+Thu Jul 19 09:33:46 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/emitter.c (initialize): allow a configuration object to be
+	  passed to the constructor so that mutation isn't required after
+	  instantiation.
+
+	* ext/psych/lib/psych/handler.rb: add configuration object
+
+	* ext/psych/lib/psych/visitors/emitter.rb: use configuration object if
+	  extra configuration is present.
+
+Thu Jul 19 08:20:25 2012  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_file.rb: remove temporally files early.
+
+Thu Jul 19 07:37:41 2012  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+
+	* test/drb/drbtest.rb: fixed: can't delete unix domain sockets problem.
+
+Thu Jul 19 03:41:20 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* bignum.c: Added #include <strings.h> for ffs(). Patch by Perry
+	  Smith. Thank you. [Bug #6748]
+
+Thu Jul 19 01:56:02 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* include/ruby/intern.h (rb_num_zerodiv): Added NORETURN.
+	  Patched by Xi Wang. [Bug #6736]
+
+Wed Jul 18 23:57:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* pack.c (pack_pack): round down too long uuencode width.  folding
+	  width in uuencode format cannot be longer than 63 bytes.
+
+Wed Jul 18 23:04:18 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/dbm/dbm.c (fdbm_empty_p): fix wrong condition introduced in r36438.
+
+	* ext/sdbm/init.c (fsdbm_empty_p): ditto.
+
+Wed Jul 18 23:08:57 2012  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_beginendblock.rb: remove temporally files early.
+
+Wed Jul 18 22:43:02 2012  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_autoload.rb: remove temporally files early.
+
+Wed Jul 18 21:59:46 2012  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_argf.rb: use temporally directory.
+
+Wed Jul 18 19:41:19 2012  Tanaka Akira  <akr@fsij.org>
+
+	* test/openssl/test_config.rb: remove temporally files early.
+
+Wed Jul 18 17:45:26 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (rb_builtin_type_name): map by index.
+
+Wed Jul 18 16:17:40 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (have_framework): get rid of separating -framework
+	  option and its argument and dealing with the argument as a library
+	  or an object name.  if $LDFLAGS were an array...
+
+Wed Jul 18 16:09:10 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* ext/curses/extconf.rb: support PDCurses.  patched by Luis Lavena.
+	  [ruby-core:46485] [Feature #6735]
+
+Wed Jul 18 15:50:25 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* parse.y (primary): allow an empty grouped expression as the
+	  operand of the not operator (e.g., not ()).
+	  [ruby-core:45976] [Bug #6674]
+
+	* parse.y (parser_yylex): show no warning for a grouped expression
+	  as the operand of the not operator (e.g., not (a)) or as an
+	  argument of a method call without parentheses (e.g., foo (a)).
+	  [ruby-core:39050] [Bug #5214]
+
+Wed Jul 18 15:33:21 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* thread.c (rb_thread_call_without_gvl2): added.
+	  it can skip last CHECK_INTS.  See document for more details.
+	  Document about it was updated a bit.
+
+	* include/ruby/thread.h (decl. of rb_thread_call_without_gvl2): added.
+
+	* thread.c (rb_thread_call_with_gvl): remove "EXPERIMENTAL!"
+	  warning from a document.
+
+Wed Jul 18 14:53:21 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (EXTDLDFLAGS): split options for each extension
+	  libraries, and unused in ruby.pc.  [Bug #6734]
+
+	* lib/mkmf.rb (MakeMakefile#configuration): add EXTDLDFLAGS.
+
+Wed Jul 18 14:47:23 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* thread.c: fix last commit miss.
+
+Wed Jul 18 14:16:51 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* thread.c (rb_threadptr_async_errinfo_*): manage async errors queue.
+	  Async events such as an exception throwed by Thread#raise,
+	  Thread#kill and thread termination (after main thread termination)
+	  will be queued to th->async_errinfo_queue.
+	  - clear: clear the queue.
+	  - enque: enque err object into queue.
+	  - deque: deque err object from queue.
+	  - active_p: return 1 if the queue should be checked.
+	  rb_thread_t#thrown_errinfo was removed.
+
+	* vm_core.h: add declarations of rb_threadptr_async_errinfo_*.
+	  remove rb_thread_t#thrown_errinfo field and
+	  add rb_thread_t#async_errinfo_queue (queue body: Array),
+	      rb_thread_t#async_errinfo_queue_checked (flag),
+	      rb_thread_t#async_errinfo_mask_stack(Array, not used yet).
+
+	* vm.c (rb_thread_mark): fix a mark function.
+
+	* cont.c (rb_fiber_start): enque an error.
+
+	* process.c (after_fork): clear async errinfo queue.
+
+Wed Jul 18 14:25:55 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* pack.c: (ditto) bitwise operations are not char.  Apply explicit
+	  casts on them.
+
+Wed Jul 18 12:59:50 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* encoding.c (load_encoding): explicit cast  to suppress  warning.
+	  Though the  cast truncates some bits, from  heuristic analysis I
+	  believe it is OK to do so here.
+
+	* bignum.c (rb_cstr_to_inum): ditto.
+
+Wed Jul 18 12:55:54 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/benchmark.rb: Fix Benchmark.benchmark output with an empty
+	  caption.  patched by Benoit Daloze. [ruby-core:45719] [Bug #6610]
+
+Wed Jul 18 10:00:54 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/debug.rb:  Added toplevel documentation.  Based on patch by Oscar
+	  Del Ben.  [Bug #6743], fixes #146 on github.
+
+Wed Jul 18 09:33:59 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/win32ole/test_win32ole_event.rb (TestWIN32OLE_EVENT): use
+	  standard skip method to skip tests.
+
+Wed Jul 18 09:26:45 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/logger.rb:  Updated typos and output to match modern Logger
+	  output.  Patch by Marcus Stollsteimer.  [Bug #6738]
+
+Wed Jul 18 07:59:29 2012  Takeyuki FUJIOKA  <xibbar@ruby-lang.org>
+
+	* lib/cgi/util.rb (CGI.escapeHTML,unescapeHTML): Add &apos; for HTML5
+	  escaping.
+	  [Feature #6620]
+
+Tue Jul 17 22:17:13 2012  Tanaka Akira  <akr@fsij.org>
+
+	* lib/open-uri.rb: call io.close! for Tempfile.
+
+Tue Jul 17 16:41:32 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* proc.c (rb_proc_arity): return normal value (not -n-1) if it is not
+	  a labmda, or it is a labmda and no arg_opts. [Bug #5694]
+
+Tue Jul 17 03:56:34 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: strings with YAML anchors
+	  are properly referenced. Patched by Joe Rafaniello via Github:
+	    https://github.com/tenderlove/psych/pull/69
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: ditto
+	* test/psych/test_alias_and_anchor.rb: test for change
+
+Mon Jul 16 23:20:24 2012  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_integer_float_cmp): use FIXNUM_MIN and FIXNUM_MAX,
+	  instead of LONG_MIN and LONG_MAX.
+
+Mon Jul 16 22:50:41 2012  Tanaka Akira  <akr@fsij.org>
+
+	* numeric.c (flo_to_s): use the exponential form if the integer part
+	  is longer than or equal DBL_DIG.
+	  [ruby-dev:45960] [ruby-trunk - Bug #6741]
+
+Mon Jul 16 22:01:00 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* ext/readline/readline.c: fixed docs. [Bug #6740][ruby-core:46501]
+	  patched by Nobuhiro IMAI.
+
+Mon Jul 16 19:24:01 2012  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_integer_float_eq): new function.
+	  (rb_big_eq): use rb_integer_float_eq.
+
+	* internal.h (rb_integer_float_eq): declared.
+
+	* numeric.c (flo_eq): use rb_integer_float_eq.
+	  (fix_equal): ditto.
+
+Mon Jul 16 19:02:31 2012  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_integer_float_cmp): rename a local variable.
+
+Mon Jul 16 18:40:26 2012  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_integer_float_cmp): renamed from rb_big_float_cmp.
+
+	* internal.h: follow the above change.
+
+	* numeric.c: ditto.
+
+Mon Jul 16 17:57:54 2012  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big_float_cmp): compare an integer and float precisely.
+	  [ruby-core:31376] [Bug #3589] reported by Tomasz Wegrzanowski.
+
+Mon Jul 16 17:29:45 2012  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big_float_cmp): support fixnum for argument x.
+
+	* numeric.c (fix_equal): use rb_big_float_cmp.
+	  (fix_cmp): ditto.
+	  (fix_gt): ditto.
+	  (fix_ge): ditto.
+	  (fix_lt): ditto.
+	  (fix_le): ditto.
+	  (flo_eq): ditto.
+	  (flo_cmp): use rb_big_float_cmp for fixnum argument.
+	  (flo_gt): ditto.
+	  (flo_ge): ditto.
+	  (flo_lt): ditto.
+	  (flo_le): ditto.
+
+Mon Jul 16 17:05:53 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* test/fileutils/test_fileutils.rb: add test for FileUtils#uptodate?
+
+Mon Jul 16 16:56:12 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* lib/fileutils.rb (FileUtils.uptodate?): remove useless parameter.
+	  patched by Oscar Del Ben.[Bug #6708][ruby-core:46256]
+
+Mon Jul 16 15:37:56 2012  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big_eq): use rb_big_float_cmp.
+
+Mon Jul 16 15:00:45 2012  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (rb_big_float_cmp): declared.
+
+	* bignum.c (rb_big_float_cmp): extracted from rb_big_cmp and big_op.
+	  (rb_big_cmp): use rb_big_float_cmp.
+	  (big_op): ditto.
+
+	* numeric.c (flo_cmp): use rb_big_float_cmp.
+	  (flo_gt): ditto.
+	  (flo_ge): ditto.
+	  (flo_lt): ditto.
+	  (flo_le): ditto.
+
+Mon Jul 16 14:14:21 2012  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (enum big_op_t): new type.
+	  (big_op): use enum big_op_t.
+	  (big_gt): ditto.
+	  (big_ge): ditto.
+	  (big_lt): ditto.
+	  (big_le): ditto.
+
+Sat Jul 14 18:18:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_get_values_at): fill with nil out of range.
+	  [ruby-core:43678] [Bug #6203]
+
+Sat Jul 14 17:17:55 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* cont.c (cont_restore_0): improve docs. [Bug #6706][ruby-core:46243]
+	  patched by Oscar Del Ben via https://github.com/ruby/ruby/pull/140
+
+Sat Jul 14 17:08:13 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (rb_hash_s_create): raise an exception, when input elements
+	  are not one or two elements arrays.  [ruby-core:39945] [Bug #5406]
+
+Sat Jul 14 16:16:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit.rb (Test::Unit::Runner#_run_parallel): use
+	  Array#uniq!.
+
+	* lib/test/unit.rb (Test::Unit::Runner#deal): deal tasks to workers.
+
+	* lib/test/unit.rb (Test::Unit::Runner#quit_workers): close and kill
+	  all workers.
+
+	* lib/test/unit.rb (Test::Unit::Runner#delete_worker): delete dead
+	  worker from working set.
+
+	* lib/test/unit.rb (Test::Unit::Runner#launch_worker): add new worker
+	  to working set.
+
+	* lib/test/unit.rb (Test::Unit::Runner#launch_worker): extract.
+
+	* lib/test/unit.rb (Test::Unit::Runner#start_watchdog): extract.
+
+	* lib/test/unit.rb (Test::Unit::Runner#_run_parallel): move
+	  initializations with nothing to release outside begin/ensure.
+
+Sat Jul 14 16:04:24 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_join): should not infected by separator if it is not
+	  used.  [ruby-core:42161][Bug #5902]
+
+Sat Jul 14 02:31:55 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/intern.h (rb_thread_blocking_region): fix declarations
+	  prototypes without arguments in C++ have different meanings than C.
+
+Thu Jul 12 12:32:26 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/runner.rb: skip default gems to get rid of loading old versions
+	  before installation.
+
+Thu Jul 12 11:44:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_new_frozen): since the result object should have
+	  same tainted/untrusted bits with the original object, return new
+	  object if the shared object unmatch.  [ruby-core:39745][Bug #5374]
+
+Thu Jul 12 10:46:39 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/net/http/test_http.rb (TestNetHTTPLocalBind#test_bind_to_local*):
+	  cannot cross between network interfaces on Windows, so skip this test
+	  until we find better test.
+
+Thu Jul 12 08:48:33 2012  Ryan Davis  <ryand-ruby@zenspider.com>
+
+	* lib/minitest/*: Imported minitest 3.2.0 (r7598)
+	* test/minitest/*: ditto
+
+Thu Jul 12 05:11:41 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* insns.def (defined): use method entry and id in cfp for proper
+	  superclass, since klass in iseq is shared by dynamically defined
+	  methods from the same block.  [ruby-core:45831][Bug #6644]
+
+Thu Jul 12 01:49:07 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http.rb (Net::HTTP#connect): use local_host and local_port
+	  if specified. patched by Ricardo Amorim [Feature #6617]
+
+Wed Jul 11 17:36:39 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/extmk.rb: append ENCOBJS to DLDOBJS but not EXTSOLIBS which is
+	  not a target, to compile enc/encinit.c.
+
+Wed Jul 11 12:38:20 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/openssl/ossl_pkey_ec.c (ossl_ec_point_mul): nonstatic initializer
+	  of an aggregate type is a C99ism.
+
+	* ext/openssl/ossl_pkey_ec.c (ossl_ec_point_mul): get rid of VC++
+	  warnings.
+
+Mon Jul  9 16:11:30 2012  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* vm_eval.c (rb_eval_string_from_file,
+	  rb_eval_string_from_file_protect): new functions to replace
+	  rb_compile_main_from_string() and ruby_eval_main().
+
+	* nacl/pepper_ruby.c: Follows the change in vm_eval.c
+
+Mon Jul  9 14:05:42 2012  Yuki Yugui Sonoda  <yugui@google.com>
+
+	Reverts a half of r36079. As we discussed on ruby-dev@ and IRC,
+	we do not need to disclose intermediate representation of program.
+	The program embedding CRuby should use rb_eval_string family.
+	* include/ruby/ruby.h (ruby_opaque_t): removed.
+	  (ruby_compile_main_from_file, ruby_compile_main_from_string,
+	   ruby_eval_main): removed.
+
+	* eval.c (ruby_eval_main_internal): became ruby_exec_internal() again.
+	  (ruby_eval_main): removed.
+
+	* ruby.c (PREPARE_PARSE_MAIN) reverted.
+	  (parse_and_compile_main, ruby_compile_main_from_file,
+	   ruby_compile_main_from_string): removed
+
+Wed Jul 11 10:16:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby.h (HAVE_RUBY_THREAD_H): to show ruby/thread.h to be
+	  available.  fixup of r36355.
+
+Wed Jul 11 03:26:47 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/zlib/zlib.c:  Added streaming support to inflate processing.
+	  This allows zlib streams to be processed without huge memory growth.
+	  [Feature #6612]
+	* NEWS:  ditto
+	* ext/zlib/zlib.c (zstream_expand_buffer):  Uses rb_yield when a block
+	  is given for streaming support.  Refactored to use
+	  zstream_expand_buffer_into to remove duplicate code.
+	* ext/zlib/zlib.c (zstream_expand_buffer_protect):  Added wrapper
+	  function to pass jump state back through GVL-free section to allow
+	  zstream clean-up before terminating the ruby call.
+	* ext/zlib/zlib.c (zstream_expand_buffer_without_gvl):  Acquire GVL to
+	  yield processed chunk of output stream.
+	* ext/zlib/zlib.c (zstream_detach_buffer):  When a block is given,
+	  returns Qnil mid-stream and yields the output buffer at the end of
+	  the stream.
+	* test/zlib/test_zlib.rb:  Updated tests
+
+Tue Jul 10 22:57:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/thread.h: new header file for thread stuff.
+
+	* thread.c (rb_thread_call_without_gvl): export.  [Feature#4328]
+	  returns void* instead of VALUE.  [Feature #5543]
+
+	* thread.c (rb_thread_blocking_region): deprecate.  [ruby-core:46295]
+
+Tue Jul 10 10:48:59 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* include/ruby/win32.h (NT, NtInitialize): removed unused old macros.
+
+Tue Jul 10 10:43:37 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* configure.in: removed --enable/disable-win95 options. (see r36342)
+
+Tue Jul 10 00:44:41 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* include/ruby/ruby.h: Removed RUBY_GLOBAL_SETUP completely. It is
+	  no meaning definition since r24894.
+	* main.c: ditto.
+	* nacl/pepper_main.c: ditto.
+
+Mon Jul  9 23:59:36 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* dln.c: Simplify and make consistent an ifdef for Mac OS X.
+	* ext/socket/rubysocket.h: ditto.
+	* ext/tk/stubs.c: ditto.
+	* io.c: ditto.
+	* process.c: ditto.
+	* signal.c: ditto.
+	* vm_dump.c: ditto.
+
+Mon Jul  9 17:37:35 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (win95_stat): removed unnecessary macro.
+
+Mon Jul  9 17:22:16 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/configure.bat, win32/setup.mak, win32/Makefile.sub: omitted
+	  Win9x support.  removed --enable/disable-win95 options.
+
+	* include/ruby/win32.h, file.c, win32/win32.c: ditto.
+
+	* win32/README.win32: ditto.
+
+Mon Jul  9 13:28:34 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (DLDFLAGS): use TARGET_ENTRY to specify an entry point
+	  instead of TARGET which may contain non-identifier characters.
+
+	* lib/mkmf.rb (create_makefile): add TARGET_NAME which is the first
+	  part consists of only word characters.  [ruby-core:46248][Bug #6709]
+
+Sun Jul  8 07:36:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (shadowing_lvar_gen, warn_unused_var): no warnings for
+	  variables starting with _.  [ruby-core:46160][Feature #6693]
+
+Sat Jul  7 23:07:30 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* test/csv/test_features.rb: add require for Tempfile.
+	* test/csv/test_serialization.rb: ditto.
+
+Fri Jul  6 06:49:50 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* array.c (rb_ary_aref):  Added a description of the behavior of
+	  index positioning.  [Bug #6680]
+	* array.c (rb_ary_aset):  ditto.  Reordered sentences for clarity.
+	* string.c (rb_str_aref_m):  Added a description of the behavior of
+	  index positioning
+
+Fri Jul  6 05:38:44 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* string.c (rb_str_bytesize):  Improve documentation.  Patch by Oscar
+	  Del Ben from github issue #138.
+	* string.c (rb_str_empty):  ditto.
+	* string.c (rb_str_times):  ditto.
+	* string.c (rb_str_dump):  ditto.
+	* string.c (rb_str_center):  ditto.
+
+Fri Jul  6 04:05:59 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/zlib/zlib.c (zstream_expand_buffer_without_gvl):  Use
+	  ruby_xrealloc() to avoid crash with CALC_EXACT_MALLOC_SIZE.
+
+Thu Jul  5 17:32:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* internal.h: move ThreadShield declarations from intern.h.
+
+Thu Jul  5 16:00:24 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread.c (ThreadShield): rename from Barrier.
+
+Thu Jul  5 15:14:50 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* bootstraptest/runner.rb (show_progress): refine error output. do not
+	  count non-empty error message, but just warn.
+
+	* bootstraptest/runner.rb (error): show errors immediately if tty.
+
+Thu Jul  5 12:28:11 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* test/net/http/test_httpresponses.rb: Add a test file for
+	  Net::HTTPResponses and put a test case for the previous bug.
+
+Thu Jul  5 06:33:52 2012  Mark Dodwell <mark@mkdynamic.co.uk>
+
+	* lib/net/http/responses.rb: Fix 4xx classes to inherit correctly
+	  from Net::HTTPClientError. [Bug #6700]
+
+Wed Jul  4 21:55:35 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ruby.c (proc_options): warn only if -K and -w option is specified.
+	  see also r36274 [Feature #5206]
+
+Wed Jul  4 21:41:44 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* gc.c, atomic.h (ATOMIC_SIZE_*): moved from gc.c to atomic.h
+	  [ruby-dev:45909]
+
+Wed Jul  4 19:13:15 2012  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* test/win32ole/test_win32ole.rb (test_s_codepage_changed):
+	  FileSystemObject only supports ANSI or UTF-16LE encoding.
+	  Patch by h.shirosaki (Hiroshi Shirosaki) [ruby-trunk - Bug #6650]
+
+Wed Jul  4 11:52:12 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* gc.c (ATOMIC_SIZE_*): 64bit Windows support.
+
+Wed Jul  4 11:11:28 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval.c (rb_frame_callee, rb_f_callee_name): fix to return the
+	  called id.  this longstanding bug has been caused and blocked by
+	  the structure of old rb_control_frame_t and rb_iseq_t.
+
+	* vm_insnhelper.c (vm_push_frame): set proper method entry.
+
+Wed Jul  4 08:29:31 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* array.c (rb_ary_aref):  Updated documentation to indicate the
+	  starting index is an index into the array or string.  Updated
+	  examples to show behavior of indexes at the end of an array or
+	  string.  Based on patch by Marcus Stollsteimer.  [Bug #6680]
+	* array.c (rb_ary_aset):  ditto.
+	* string.c (rb_str_aref):  ditto.  Also added descriptive argument
+	  names to call-seq section.
+
+Wed Jul  4 07:05:59 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* test/zlib/test_zlib.rb (test_inflate_partial_input):  Added test for
+	  inflating incomplete zlib streams.
+
+Tue Jul  3 23:14:16 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* gc.c (ATOMIC_SIZE_EXCHANGE): fix function name on Solaris [Bug #6689]
+	  [ruby-dev:45904]
+
+Tue Jul  3 16:07:49 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (vm_malloc_fixup, vm_xrealloc, vm_xfree, after_gc_sweep): use
+	  atomic operations to update malloc_params.
+
+Tue Jul  3 14:50:16 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/zlib/zlib.c (zstream_run_func):  Don't exit run loop for buffer
+	  error.  [Feature #6615]
+	* ext/zlib/zlib.c:  Fix style to match existing functions.
+
+Tue Jul  3 12:05:51 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/dl/cfunc.c (rb_dlcfunc_call): also needed the workaround for VC8
+	  for x64.  [ruby-dev:45875] [Bug #6676]
+	  reported by aves_ramphastos (Seigo Ishigane)
+
+Tue Jul  3 11:56:46 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/zlib/zlib.c (zstream_detach_buffer):  Refactored tainting of
+	  output string, moving it from the callee to zstream_detach_buffer.
+	* ext/zlib/zlib.c (rb_zstream_finish):  ditto
+	* ext/zlib/zlib.c (rb_zstream_flush_next_out):  ditto
+	* ext/zlib/zlib.c (rb_deflate_deflate):  ditto
+	* ext/zlib/zlib.c (rb_deflate_flush):  ditto
+	* ext/zlib/zlib.c (rb_inflate_inflate):  ditto
+
+Tue Jul  3 11:16:06 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (runnable): make symbolic links to run in build directory.
+
+Tue Jul  3 10:46:06 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ruby.c (proc_options): warn if -K option is specified. [Feature #5206]
+
+Tue Jul  3 06:12:13 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* object.c (Init_Object):  Added RDoc location pointers for
+	  Kernel#methods, Kernel#protected_methods, Kernel#private_methods and
+	  Kernel#public_methods.  [Bug #6666]
+
+Tue Jul  3 06:02:54 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/zlib/zlib.c (zstream_run):  Process zlib streams without GVL.
+	  [Feature #6615]
+	* NEWS:  ditto.
+
+Mon Jul  2 22:13:04 2012  Tanaka Akira  <akr@fsij.org>
+
+	* thread.c (rb_thread_aref): add explanation for why Thread#[] and
+	  Thread#[]= are fiber-local and not thread-local.
+	  reported by Julien A.  [ruby-core:41606] [ruby-trunk - Bug #5750]
+
+Mon Jul  2 21:25:55 2012  Tanaka Akira  <akr@fsij.org>
+
+	* time.c (timew_out_of_timet_range): specialization for
+	  SIZEOF_TIME_T == SIZEOF_INT64_T.
+
+Mon Jul  2 17:06:32 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (rb_include_module): include modules after the origin.
+
+	* class.c (include_modules_at): skip prepended modules.
+
+	* class.c (rb_prepend_module): now basic.klass in ICLASS refers the
+	  old original class/module.  [ruby-dev:45868][Bug #6662]
+
+	* class.c (rb_mod_ancestors): ditto.
+
+	* vm_method.c (search_method): search method entry from the origin
+	  iclass.
+
+Mon Jul  2 05:54:58 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: [ruby-core:46058].
+
+Mon Jul  2 05:35:43 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c (d_lite_marshal_load): accepts old dump.
+
+Mon Jul  2 03:21:53 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* README.EXT.ja: fixed args of have_struct_member() ,
+	  create_makefile() same as r35977. however, mkmf.rb include
+	  no Japanese-docs, so Appendix C was not removed. [Bug #6597]
+
+Fri Jun 29 05:08:41 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/test/unit/parallel.rb: workaround fix for rubygems.
+	  RubyGems can't find rake if the source directory is not equal to
+	  the directory which is running the test. [Bug #6604]
+
+Thu Jun 28 20:33:15 2012  Luis Lavena  <luislavena@gmail.com>
+
+	* test/win32ole/test_win32ole.rb (test_s_codepage_changed):
+	  FileSystemObject only supports ANSI or UTF-16LE encoding.
+	  Patch by bosko (Bosko Ivanisevic) [ruby-trunk - Bug #6650]
+
+Thu Jun 28 09:27:09 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* class.c (class_instance_method_list): consider prepended Class/Module
+	  when recur != 0. [ruby-dev:45863] [Bug #6660]
+
+	* test/ruby/test_module.rb (test_prepend_instance_methods_false): add
+	  a test for it.
+
+
+Thu Jun 28 06:12:42 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (rb_mod_ancestors): fix ancestors order.
+	  [ruby-core:45919][Bug #6658] [ruby-dev:45861][Bug #6659]
+
+Wed Jun 27 21:28:59 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* lib/racc/parser.rb: NotImplementError is not exist.
+
+	* lib/irb/output-method.rb (IRB::OutputMethod#print): ditto.
+
+Wed Jun 27 21:31:13 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (rb_prepend_module): ancestors of prepending module also
+	  should be included.  [ruby-core:45914][Bug #6654]
+
+Wed Jun 27 21:01:32 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (class_instance_method_list): m_tbl in prepended
+	  class/module is NULL.  [ruby-core:45915][Bug #6655]
+
+Wed Jun 27 16:48:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (rb_prepend_module): prepend module into another module.
+
+	* eval.c (rb_mod_prepend): new method Module#prepend.  [Feature #1102]
+
+Wed Jun 27 09:15:46 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (is_popen_fork): check if fork and raise NotImplementedError if
+	  unavailable.
+
+	* io.c (rb_io_s_popen): allow environment variables hash and exec
+	  options as flat parameters, not in an array arguments.
+	  [Feature#6651] [EXPERIMENTAL]
+
+	* process.c (rb_execarg_extract_options): extract exec options, but no
+	  exceptions on non-exec options and returns them as a Hash.
+
+	* process.c (rb_execarg_setenv): set environment variables.
+
+Tue Jun 26 16:57:14 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* thread_pthread.c (register_cached_thread_and_wait):
+	  return immediately if malloc() failed.
+	  [ruby-core:43960] [ruby-trunk - Bug #6235]
+
+	* thread_pthread.c (USE_THREAD_CACHE): check already defined or not.
+
+Tue Jun 26 10:01:56 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_io_s_popen): revert r36213 "popen: shell commands with
+	  envvar" because it disabled to let single command bypass shell.
+
+Mon Jun 25 17:49:28 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (rb_mix_module): revert Module#mix.
+
+Mon Jun 25 16:57:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (rb_mod_define_method): allow method transplanting from a
+	  module to either class or module.  [ruby-core:34267][Feature #4254]
+
+Mon Jun 25 11:34:45 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* internal.h: use rb_pid_t instead of pid_t because of there is no
+	  definition of pid_t here on Windows.
+
+Mon Jun 25 00:25:01 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in (for stack end address): remove human68k specific
+	  check. It is no longer supported.
+
+Sun Jun 24 23:02:17 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (pipe_open): merge win32 code using spawnv().
+
+Sun Jun 24 22:53:42 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (check_exec_fds): separate check_exec_fds_1() since
+	  nonstatic initializer of an aggregate type is not allowed by C89.
+
+Sun Jun 24 07:47:17 2012  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (rb_execarg): options field removed.
+
+	* process.c: follow the rb_execarg change.
+
+Sat Jun 23 23:48:21 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (proc_spawn_cmd): unused variable removed to suppress a
+	  warning.
+	  (save_env): ditto.
+
+	  [ruby-core:45797] reported by Luis Lavena.
+
+Sat Jun 23 23:19:31 2012  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (rb_execarg): add new_pgroup_given and new_pgroup_flag
+	  fields.
+
+	* process.c (EXEC_OPTION_NEW_PGROUP): removed.
+	  (proc_spawn_cmd): take a struct rb_execarg argument.
+	  use the new fields.
+	  (rb_execarg_addopt): use the new fields.
+	  (rb_spawn_process): follow the proc_spawn_cmd change.
+
+	  [ruby-core:45794] [ruby-trunk - Bug #6633] reported by Luis Lavena.
+
+Sat Jun 23 20:26:36 2012  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (rb_execarg): add fd_dup2, fd_close, fd_open,
+	  fd_dup2_child fields.
+
+	* process.c (EXEC_OPTION_DUP2): removed.
+	  (EXEC_OPTION_CLOSE): removed.
+	  (EXEC_OPTION_OPEN): removed.
+	  (EXEC_OPTION_DUP2_CHILD): removed.
+	  (mark_exec_arg): mark the new fields.
+	  (check_exec_redirect1): change condition for default option.
+	  (check_exec_redirect): take a struct rb_execarg argument.
+	  use the new fields.
+	  (rb_execarg_addopt): follow the check_exec_redirect change.
+	  (check_exec_fds): use the new fields.
+	  (save_redirect_fd): ditto.
+
+Sat Jun 23 19:01:18 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_execarg_fixup): fix envopts condition.
+
+Sat Jun 23 18:44:13 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (check_exec_redirect1): extracted from
+	  check_exec_redirect.
+
+Sat Jun 23 17:22:02 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (save_env): don't use EXEC_OPTION_UNSETENV_OTHERS.
+	  (rb_execarg_run_options): ditto.
+
+Sat Jun 23 17:04:08 2012  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (rb_execarg): add env_modification field.
+
+	* process.c (EXEC_OPTION_ENV): removed.
+	  (mark_exec_arg): mark env_modification field.
+	  (rb_exec_fillarg): update the new field, instead of options array.
+	  (rb_execarg_fixup): use the new field.
+	  (save_env): ditto.
+	  (rb_execarg_run_options): ditto.
+
+Sat Jun 23 16:27:01 2012  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (rb_execarg): add rlimit_limits field.
+
+	* process.c (EXEC_OPTION_RLIMIT): removed.
+	  (mark_exec_arg): mark rlimit_limits field.
+	  (rb_execarg_addopt): update the new fields, instead of options array.
+	  (run_exec_rlimit): use the new field.
+	  (rb_execarg_run_options): clear sarg using MEMZERO.  use the new
+	  field.
+
+Sat Jun 23 14:29:25 2012  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (rb_execarg): add chdir_given and chdir_dir fields.
+
+	* process.c (EXEC_OPTION_CHDIR): removed.
+	  (mark_exec_arg): mark chdir_dir field.
+	  (rb_execarg_addopt): update the new fields, instead of options array.
+	  (rb_execarg_run_options): use the new fields.
+
+Sat Jun 23 13:20:47 2012  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (rb_execarg): add close_others_given, close_others_do and
+	  close_others_maxhint fields.
+
+	* process.c (EXEC_OPTION_CLOSE_OTHERS): removed.
+	  (rb_execarg_addopt): update the new fields, instead of options array.
+	  (check_exec_fds): take eargp as an argument.  update the
+	  close_others_maxhint field.
+	  (rb_execarg_fixup): follow the argument change of check_exec_fds.
+	  (rb_execarg_run_options): use the new fields.
+
+Sat Jun 23 10:41:59 2012  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (rb_execarg): add unsetenv_others_given and
+	  unsetenv_others_do fields.
+
+	* process.c (EXEC_OPTION_UNSETENV_OTHERS): removed.
+	  (rb_execarg_addopt): update the new fields, instead of options array.
+	  (rb_execarg_fixup): use the new fields.
+
+Sat Jun 23 09:35:47 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c: use the variable name "soptions" for sargp->options.
+
+Sat Jun 23 09:17:49 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c: use the name "sargp" for struct rb_execarg variables
+	  consistently for saving process attributes.
+
+	* io.c: ditto.
+
+Sat Jun 23 07:59:57 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c: use the name "eargp" for struct rb_execarg variables
+	  consistently except for saving process attributes.
+
+	* io.c: ditto.
+
+	* ext/pty/pty.c: ditto.
+
+Wed Jun 20 18:27:03 2012  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* common.mk: Add missing dependencies.
+
+Fri Jun 22 20:27:39 2012  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (rb_execarg): add pgroup_given and pgroup_pgid fields.
+
+	* process.c (EXEC_OPTION_PGROUP): removed.
+	  (rb_execarg_addopt): update the new fields, instead of options array.
+	  (run_exec_pgroup): take a struct rb_execarg argument.  refer the new
+	  fields.
+	  (rb_execarg_run_options): follow run_exec_pgroup change.
+
+Fri Jun 22 18:48:51 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* README.EXT, README.EXT.ja: use "sval" for the third argument
+	  name of Data_Wrap_Struct().
+	  Suggested by @satoh_fumiyasu. Thanks!!!
+
+Fri Jun 22 18:04:26 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* iseq.c, vm_eval.c: set th->base_block properly.
+	  th->base_block is information for (a) parsing, (b) compiling
+	  and (c) setting up the frame to execute the program passed by
+	  `eval' method.  For example, (1) parser need to know up-level
+	  variables to detect it is variable or method without paren.
+	  Befor (a), (b) and (c), VM set th->base_block by passed bindng
+	  (or previous frame information).  After execute (a), (b) and (c),
+	  VM should clear th->base_block.  However, if (a), (b) or (c)
+	  raises an exception, then th->base_block is not cleared.
+	  Problem is that the uncleared value th->balo_block is used for
+	  irrelevant iseq compilation.  It causes SEGV or critical error.
+	  I tried to solve this problem: to clear them before exception,
+	  but finally I found out that it is difficult to do it (Ruby
+	  program can be run in many places).
+	  Because of this background, I set th->base_block before
+	  compiling iseq and restore it after compiling.
+	  Basically, th->base_block is dirty hack (similar to global
+	  variable) and this patch is also dirty.
+
+	* bootstraptest/test_eval.rb: add a test for above.
+
+	* internal.h: remove unused decl.
+
+	* iseq.c (rb_iseq_compile_with_option): add base_block parameter.
+	  set th->base_block before compilation and restore it after
+	  compilation.
+
+	* ruby.c (require_libraries): pass 0 as base_block instead of
+	  setting th->base_block
+
+	* tool/compile_prelude.rb (prelude_eval): apply above changes.
+
+	* vm.c, vm_eval.c: ditto.
+
+	* vm_core.h: add comments.
+
+Fri Jun 22 18:19:38 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c: pass struct rb_execarg value instead of its options
+	  field for saving process attribute changing functions.
+	  (save_redirect_fd): take a struct rb_execarg argument.
+	  (run_exec_dup2): ditto.
+	  (run_exec_close): ditto.
+	  (run_exec_open): ditto.
+	  (run_exec_dup2_child): ditto.
+	  (run_exec_pgroup): ditto.
+	  (run_exec_rlimit): ditto.
+	  (save_env): ditto.
+	  (rb_execarg_run_options): follow the above functions change.
+
+Fri Jun 22 17:55:48 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_backtrace.rb: decrease recursion depth
+	  to reduce consuming stack size.
+
+Fri Jun 22 13:36:50 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* random.c (random_init, random_load): cannot initialize frozen object
+	  again, nor with tainted/untrusted object.  [Bug #6540]
+
+Fri Jun 22 13:32:33 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (rb_check_copyable): new function, to ensure the target is
+	  not frozen and the source is not tainted nor untrusted.
+
+Fri Jun 22 05:55:20 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* eval.c (ruby_cleanup):  Fixed typo.  Patch by Trever Dawe.
+	  Fixes #131 (github).  [ruby-trunk - Bug #6619]
+
+Thu Jun 21 21:16:58 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_execarg_addopt): take a VALUE argument instead of
+	  struct rb_execarg.
+	  (rb_exec_arg_addopt): follow the rb_execarg_addopt change.
+	  (check_exec_options_i): ditto.
+
+	* io.c (pipe_open): follow the rb_execarg_addopt change.
+
+	* internal.h (rb_execarg_addopt): follow the definition change.
+
+Thu Jun 21 20:34:19 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_exec_fillarg): take a VALUE argument instead of
+	  struct rb_execarg.
+	  (rb_check_exec_options): ditto.
+	  (check_exec_options_i): ditto.
+
+Thu Jun 21 19:48:05 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_exec_async_signal_safe): use rb_execarg_run_options
+	  instead of rb_run_exec_options_err.
+	  (rb_spawn_process): ditto.
+
+Thu Jun 21 19:02:43 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_exec_fillarg): take a VALUE argument instead of
+	  struct rb_execarg.
+	  (rb_execarg_init): follow the rb_exec_fillarg change.
+
+Thu Jun 21 18:36:43 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_execarg_init): take a VALUE argument instead of
+	  struct rb_execarg.
+	  (rb_execarg_new): follow the rb_execarg_init change.
+	  (rb_exec_arg_init): ditto.
+
+	* internal.h (rb_execarg_init): follow the definition change.
+
+Thu Jun 21 17:20:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (new_args_tail_gen): fix GC problem of keyword rest
+	  argument.  the wrapped struct should be bound to the wrapping node
+	  before assignment of child nodes, to get rid of the case the
+	  children are referred by only the struct pointer which is not a
+	  subject of GC.  [ruby-core:45744]
+
+Thu Jun 21 07:06:52 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* error.c (err_append): rename err_append() to compile_err_append()
+	  and move definition body.  err_append() is used only by compiling.
+
+Thu Jun 21 06:21:54 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_execarg_fixup): take a VALUE argument instead of
+	  struct rb_execarg.
+
+	* internal.h (rb_execarg_fixup): follow the definition change.
+
+	* io.c (pipe_open): follow rb_execarg_fixup change.
+
+	* ext/pty/pty.c (establishShell): ditto.
+
+Wed Jun 20 21:25:37 2012  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (struct rb_execarg): add umask_given and umask_mask
+	  fields.
+
+	* process.c (STATIC_ASSERT): removed.
+	  (rb_execarg_addopt): follow the rb_execarg change.
+	  (rb_execarg_run_options): ditto.
+
+Wed Jun 20 20:38:23 2012  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (struct rb_execarg) moved and renamed from
+	  struct rb_exec_arg in intern.h.
+
+	* include/ruby/intern.h (struct rb_exec_arg): refer Data object which
+	  contains struct rb_execarg.
+
+	* process.c: use struct rb_execarg instead of struct rb_exec_arg
+	  except functions declared in intern.h.
+	  (rb_exec_arg_addopt): extract a pointer to struct rb_execarg from
+	  struct rb_exec_arg.
+	  (rb_exec_arg_init): ditto.
+	  (rb_exec_arg_fixup): ditto.
+	  (rb_run_exec_options_err): ditto.
+	  (rb_run_exec_options): ditto.
+	  (rb_exec_err): ditto.
+	  (rb_exec): ditto.
+
+	* io.c: use struct rb_execarg instead of struct rb_exec_arg.
+
+	* ext/pty/pty.c: ditto.
+
+Wed Jun 20 19:13:25 2012  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (rb_execarg_new): declared.
+	  (rb_execarg_get): ditto.
+
+	* process.c (mark_exec_arg): new function.
+	  (free_exec_arg): ditto.
+	  (memsize_exec_arg): ditto.
+	  (exec_arg_data_type): defined.
+	  (rb_execarg_new): new function.
+	  (rb_execarg_get): ditto.
+	  (rb_f_exec): use rb_execarg_new.
+	  (rb_spawn_internal): ditto.
+	  (rb_f_spawn): ditto.
+
+	* io.c (pipe_open_v): use rb_execarg_new.
+	  (pipe_open_s): ditto.
+
+	* ext/pty/pty.c (establishShell): use rb_execarg_new.
+
+Wed Jun 20 16:36:14 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* missing/setproctitle.c (environ): use (*_NSGetEnviron()) instead of
+	  environ on Darwin for namespace cleanness, same as [ruby-core:00537].
+	  [ruby-core:45615] [Bug #6576]
+
+Wed Jun 20 11:33:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (rb_execarg_addopt): always make Fixnum, and ignore higher
+	  bits in too large umask value.
+
+Wed Jun 20 11:24:35 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit.rb (Test::Unit::Runner#_run_parallel): deal with
+	  sudden-death of workers.
+
+Mon Jun 18 20:34:20 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* time.c (init_leap_second_info): fix non-ANSI function declaration.
+
+Mon Jun 18 20:29:04 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* ruby.c (rb_f_sub): use ansi style declaration.
+	* ruby.c (rb_f_gsub): ditto.
+	* ruby.c (rb_f_chomp): ditto.
+
+Mon Jun 18 20:26:23 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* random.c (rb_random_int32): get rid of "warning: constant 0x100000000
+	  is so big it is long" warning.
+
+Mon Jun 18 20:07:23 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* dir.c (dir_initialize): get rid of "unused return: argc = rb_scan_args()"
+	  warning.
+
+Mon Jun 18 19:31:20 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* include/ruby/missing.h: include math.h before checking INFINITY
+	  and NAN. Otherwise, strange macro redefinition will occur.
+
+Mon Jun 18 19:12:37 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* array.c (ary_reverse): use ansi style declaration.
+
+Tue Jun 19 18:43:50 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/backward/rubysig.h: fix visibility.  [Bug #6607]
+
+Tue Jun 19 17:51:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (rb_execarg_run_options): do not call any methods in the
+	  async-signal-safe function.  mask has been checked with NUM2MODET()
+	  already and converted with LONG2NUM().
+
+Tue Jun 19 11:59:56 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/readline/readline.c (Init_readline): don't set 0 to
+	  rl_catch_signals and rl_catch_sigwinch. [Bug #5423]
+
+Tue Jun 19 11:52:59 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/readline/readline.c (readline_s_get_special_prefixes): suppress
+	  warning: uninitialized instance variable.
+
+Tue Jun 19 11:43:16 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/readline/readline.c (readline_getc): fix editline compatibility
+	  broken by r36123. [Bug #6601]
+
+Mon Jun 18 17:10:08 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_subpos): split from rb_str_substr.  returns
+	  adjusted position for substring.
+
+Mon Jun 18 10:42:57 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/readline/readline.c (readline_getc): deal with ESC just followed
+	  by ASCII as meta prefix in incremental search mode.  based on the
+	  patch from rctay (Tay Ray Chuan) at [ruby-core:45682].  [Bug #6601]
+
+Sun Jun 17 22:23:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (rb_file_directory_p): move documentation for Dir.exist? from
+	  file.c so that the proper description will be shown instead of the
+	  documentation of File.directory?.  [ruby-core:45685]
+
+Sun Jun 17 16:21:01 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread_win32.h (rb_thread_lock_t): make a union for USE_WIN32_MUTEX.
+	  this internal is used only in thread_win32.c, but has to be complete
+	  to define rb_thread_t.
+
+	* thread_win32.c (native_mutex_lock, native_mutex_destroy): fix for
+	  USE_WIN32_MUTEX.
+
+	* thread_win32.c (native_cond_timedwait_ms): rename reserved pattern
+	  name.  user defined symbols should not start with __.
+
+Sat Jun 16 19:24:01 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: define date_sg_t.
+
+Sat Jun 16 18:46:57 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_tmx.h: offset in struct tmx_funcs is now int.
+	* ext/date/date_strftime.c: ditto.
+	* ext/date/date_core.c: ditto.
+
+Sat Jun 16 18:31:46 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval.c (ruby_setup): set running state in the normal case before
+	  popping a tag.
+
+Sat Jun 16 07:46:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit.rb (Test::Unit::Runner#_run_parallel): format workers
+	  results in the parent.
+
+Sat Jun 16 07:12:56 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/runruby.rb (File.realpath): return real path of expanded path.
+	  [Bug #6598]
+
+Sat Jun 16 07:12:28 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* bootstraptest/runner.rb (main): ignore -j option for compatibility
+	  with test/unit.
+
+Sat Jun 16 07:11:52 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit.rb (Test::Unit::Runner#puke): modify only result and
+	  drop useless reports, not override entirely.
+
+	* lib/test/unit/parallel.rb (Test::Unit::Worker#_run_suite): report
+	  unformatted results.  formatting messages is not a workers task.
+
+	* lib/test/unit/parallel.rb (Test::Unit::Worker#puke): store raw
+	  results.
+
+Sat Jun 16 01:27:14 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb: bumping psych to 1.3.3
+	* ext/psych/psych.gemspec: ditto
+
+Fri Jun 15 20:54:28 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* vm_backtrace.c (backtrace_collect): rename from backtreace_collect.
+
+Fri Jun 15 19:22:13 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h: remove VM_FRAME_MAGIC_FINISH (finish frame type).
+	  Before this commit:
+	    `finish frame' was place holder which indicates that VM loop
+	    needs to return function.
+	    If a C method calls a Ruby methods (a method written by Ruby),
+	    then VM loop will be (re-)invoked.  When the Ruby method returns,
+	    then also VM loop should be escaped.  `finish frame' has only
+	    one instruction `finish', which returns VM loop function.
+	    VM loop function executes `finish' instruction, then VM loop
+	    function returns itself.
+	    With such mechanism, `leave' instruction (which returns one
+	    frame from current scope) doesn't need to check that this `leave'
+	    should also return from VM loop function.
+	    Strictly, one branch can be removed from `leave' instruction.
+	  Consideration:
+	    However, pushing the `finish frame' needs costs because
+	    it needs several memory accesses.  The number of pushing
+	    `finish frame' is greater than I had assumed.  Of course,
+	    pushing `finish frame' consumes additional control frame.
+	    Moreover, recent processors has good branch prediction,
+	    with which we can ignore such trivial checking.
+	  After this commit:
+	    Finally, I decide to remove `finish frame' and `finish'
+	    instruction.  Some parts of VM depend on `finish frame',
+	    so the new frame flag VM_FRAME_FLAG_FINISH is introduced.
+	    If this frame should escape from VM function loop, then
+	    the result of VM_FRAME_TYPE_FINISH_P(cfp) is true.
+	    `leave' instruction checks this flag every time.
+	    I measured performance on it.  However on my environments,
+	    it improves some benchmarks and slows some benchmarks down.
+	    Maybe it is because of C compiler optimization parameters.
+	    I'll re-visit here if this cause problems.
+
+	* insns.def (leave, finish): remove finish instruction.
+
+	* vm.c, vm_eval.c, vm_exec.c, vm_backtrace.c, vm_dump.c:
+	  apply above changes.
+
+Fri Jun 15 19:11:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit.rb (Test::Unit::Runner#puke): always add skipped
+	  results to the report for parallel test.  [Bug #6595]
+
+Fri Jun 15 09:01:35 2012  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* nacl/pepper_main.c: Removed an unnecessary and erroneous inclusion.
+
+Thu Jun 14 22:59:56 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (RUBY_CPPOUTFILE): check if output is really sent to
+	  specified file to tell if -o option works.  [ruby-dev:45742]
+	  [Bug#6591]
+
+	* configure.in (RUBY_CPPOUTFILE): check if output file is actually
+	  created.  [ruby-dev:45742] [Bug#6591]
+
+Thu Jun 14 22:10:50 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (proc_exec_sh): don't strip leading spaces of the script.
+
+Thu Jun 14 15:54:02 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* file.c (rb_file_s_basename, rb_file_s_dirname): documentation fix.
+	  File.basename and File.dirname support File::ALT_SEPARATOR.
+
+Thu Jun 14 11:10:10 2012  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* nacl/pepper_main.c: Applies the new embedding API to pepper_ruby.
+
+Thu Jun 14 10:44:41 2012  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* include/ruby/ruby.h: Grouped APIs for embedding CRuby interpreter.
+	  (ruby_setup, ruby_compile_main_from_file,
+	  ruby_compile_main_from_string, ruby_eval_main,
+	  ruby_set_script_name): new APIs to embed CRuby.
+	  (ruby_opaque_t) Opaque pointer to an internal data, to NODE or iseq
+	  in particular.
+
+	* eval.c (ruby_setup): Similar to ruby_init but returns an error code
+	  instead of exit(3) on error.
+	  (ruby_eval_main): Similar to ruby_exec_node but returns the
+	  evaluation result.
+	  (ruby_eval_main_internal): renamed from ruby_exec_internal.
+
+	* ruby.c (toplevel_context): new helper function.
+	  (PREPARE_EVAL_MAIN): moved.
+	  (process_options): refactored with new functions.
+	  (parse_and_compile_main) new helper function.
+	  (ruby_compile_main_from_file, ruby_compile_main_from_string) new API
+	  (ruby_set_script_name): new API.
+
+
+Thu Jun 14 10:39:48 2012  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* eval.c: Add doxygen comments.
+
+	* ruby.c: ditto.
+
+	* thread_pthread.c: ditto
+
+	* version.c: ditto.
+
+	* vm_core.h: ditto.
+
+Thu Jun 14 10:16:07 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: revert r36071 and add NetBSD to blacklist of -ansi.
+
+Thu Jun 14 07:59:12 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* thread_pthread.c (get_stack): Linux is the only OS which includes
+	  the size of guard page into the stack size.
+
+Thu Jun 14 06:21:00 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/drb/drb.rb:  Replace broken links to the English DRb book.
+	  Patch by Zachary Scott.  [ruby-trunk - Bug #6544]
+
+Thu Jun 14 06:17:47 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/observer.rb:  Update broken link to the Programming Ruby book.
+	  Patch by Zachary Scott.  [ruby-trunk - Bug #6536]
+	* lib/drb/drb.rb:  ditto.
+
+Thu Jun 14 05:23:05 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* regparse.c (PFETCH_READY): suppress Wunused-but-set-variable.
+
+	* regparse.c (is_onechar_cclass): restructured to clarify that c is
+	  used iff found == 1.
+
+Thu Jun 14 02:54:17 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: use -fbuiltin with -ansi -std=iso9899:199409.
+	  This prevents errors introduced by disabling builtin functions,
+	  which is the sub-effect of -ansi/-std.
+	  Now NetBSD can use -ansi -std=iso9899:199409.
+	  Maybe mingw, cygwin and darwin can also.
+
+Thu Jun 14 02:53:30 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* Makefile.in: don't remove macros. now name2ctype uses macros.
+
+	* tool/enc-unicode.rb: add comment why it uses Hash#index.
+
+	* enc/unicode/{name2ctype.kwd,name2ctype.src,name2ctype.h.blt}:
+	  update to follow the current name2ctype.h.
+	  FYI current Unicode version is 6.1.
+
+Thu Jun 14 00:16:59 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/net/http/responses.rb, lib/webrick/httpstatus.rb: Add HTTP
+	  response codes added in RFCs 2817 and 4918.  [ruby-core:45547]
+	  [Feature #6569]
+
+	* lib/net/http/responses.rb: Rename Net::HTTPMultipleChoice to
+	  Net::HTTPMultipleChoices, leaving the former as alias to the
+	  latter for backward compatibility.  [ruby-core:45547]
+	  [Feature #6569]
+
+	* lib/net/http/responses.rb: Add comments about unused,
+	  still-in-draft and private extension response codes.
+	  [ruby-core:45547] [Feature #6569]
+
+Wed Jun 13 22:44:32 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* test/dl/test_func.rb (test_qsort1, test_qsort2): use TYPE_SIZE_T
+	  for size_t variables. [ruby-dev:45733] [Bug #6584]
+
+Wed Jun 13 22:18:01 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: remove -ansi and -std options for lgamma_r() and
+	  finite().
+
+Wed Jun 13 21:46:34 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: cygwin does not provide some declarations in strict
+	  ANSI mode.
+
+Wed Jun 13 20:19:59 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_fork_internal): move a variable declaration.
+
+Wed Jun 13 17:54:38 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* regparse.c (PFETCH_READY):  this  line was to  suppress warning,
+	  but  did emit  warnings if  -Wuninitialized was  set.  Assigning
+	  NULL instead if pfetch_prev should suffice the situation.
+
+Wed Jun 13 17:51:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: cygwin needs C99 for some stuff, e.g.,
+	  pthread_attr_setstacksize, sched_yield.
+
+Wed Jun 13 17:50:43 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* Makefile.in (.c.i): add warnflags to make the result consistent with
+	  compilation.
+
+Wed Jun 13 15:12:07 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* configure.in: On Windows  platforms, system provided headers are
+	  VC++ optimized.  That is, C++ habits are often contaminated into
+	  various  headers.  Most  frequent  situation is  the  use of  //
+	  comments.  We bypass ANSI  C mode for them.  Otherwise extension
+	  libs cannot include those headers.
+
+Wed Jun 13 13:39:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/win32.h: get rid of C99 style one line comments.
+
+Wed Jun 13 13:39:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* encoding.c (enc_alias_internal): use strdup defined as macro.
+
+Wed Jun 13 10:20:27 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (rb_exec_fillarg): get rid of SIZE_T_MAX which may need
+	  more headers.
+
+	* process.c (rb_exec_fillarg): fix array element size.  "continue" and
+	  "readonly" exceeded the size.
+
+	* process.c (rb_exec_fillarg): use shell if the first word is reserved
+	  or special built-in name.
+	 http://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html
+
+	* process.c (rb_exec_fillarg): treat '=' only in the first word.  if
+	  the first word does not contain '=', it is the command name and
+	  environment assignments cannot be anymore.
+
+Tue Jun 12 23:45:36 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/mkmf.rb: add dummy clean-static target to prevent errors for the
+	  case real clean-static target doesn't exist.
+
+Tue Jun 12 22:49:42 2012  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* process.c (rb_exec_arg_fixup): fix compile error
+
+Tue Jun 12 21:40:13 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_exec_fillarg): treat '=' character as a meta
+	  character to detect assignments preceding command name.
+
+Tue Jun 12 20:29:19 2012  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/intern.h (rb_exec_arg_init): deprecated.
+	  (rb_exec_arg_addopt): ditto.
+	  (rb_exec_arg_fixup): ditto.
+	  (rb_run_exec_options): ditto.
+	  (rb_run_exec_options_err): ditto.
+
+	* internal.h (rb_execarg_init): declared.
+	  (rb_execarg_addopt): ditto.
+	  (rb_execarg_fixup): ditto.
+	  (rb_execarg_run_options): ditto.
+
+	* process.c: call rb_execarg_addopt, rb_execarg_fixup,
+	  rb_execarg_run_options, rb_execarg_init.
+	  (rb_execarg_addopt): renamed from rb_exec_arg_addopt.
+	  (rb_exec_arg_addopt): stub to call rb_execarg_addopt.
+	  (rb_execarg_init): renamed from rb_exec_arg_init.
+	  (rb_exec_arg_init): stub to call rb_execarg_init.
+	  (rb_execarg_fixup): renamed from rb_exec_arg_fixup.
+	  (rb_exec_arg_fixup): stub to call rb_execarg_fixup.
+	  (rb_execarg_run_options): renamed from rb_run_exec_options_err.
+	  (rb_run_exec_options_err): stub to call rb_execarg_run_options.
+	  (rb_run_exec_options): call rb_execarg_run_options.
+
+	* io.c: call rb_execarg_addopt, rb_execarg_fixup,
+	  rb_execarg_run_options, rb_execarg_init.
+
+	* ext/pty/pty.c (establishShell): call rb_execarg_init and
+	  rb_execarg_fixup.
+
+Tue Jun 12 18:39:59 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* configure.in: enable strict ANSI mode by default in case of GCC,
+	  requested by _ko1.
+
+Tue Jun 12 06:40:23 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_exec_fillarg): detect '#' as a meta character.
+
+Mon Jun 11 22:15:44 2012  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/intern.h (rb_proc_exec_n): deprecated.
+	  (rb_exec): ditto.
+	  (rb_exec_err): ditto.
+	  (rb_fork): ditto.
+	  (rb_fork_err): ditto.
+
+Mon Jun 11 18:49:52 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: on checking libexecinfo, don't specify /use/local.
+	  On FreeBSD people must specify --with-opt-dir or --with-execinfo-dir.
+
+Mon Jun 11 12:14:37 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h: remove lfp (local frame pointer) and rename
+	  dfp (dynamic frame pointer) to ep (environment pointer).
+	  This change make VM `normal' (similar to other interpreters).
+	  Before this commit:
+	    Each frame has two env pointers lfp and dfp.  lfp points
+	    local environment which is method/class/toplevel frame.
+	    lfp[0] is block pointer.
+	    dfp is block local frame. dfp[0] points previous (parent)
+	    environment pointer.
+	    lfp == dfp when frame is method/class/toplevel.
+	    You can get lfp from dfp by traversing previous environment
+	    pointers.
+	  After this commit:
+	    Each frame has only `ep' to point respective environment.
+	    If there is parent environment, then ep[0] points parent
+	    environment (as dfp).  If there are no more environment,
+	    then ep[0] points block pointer (as lfp).  We call such ep
+	    as `LEP' (local EP).  We add some macros to get LEP and to
+	    detect LEP or not.
+	    In short, we replace dfp and lfp with ep and LEP.
+	  rb_block_t and rb_binding_t member `lfp' and `dfp' are removed
+	  and member `ep' is added.
+	  rename rb_thread_t's member `local_lfp' and `local_svar' to
+	  `root_lep' and `root_svar'.
+	  (VM_EP_PREV_EP(ep)): get previous environment pointer.  This macro
+	    assume that ep is not LEP.
+	  (VM_EP_BLOCK_PTR(ep)): get block pointer.  This macro assume
+	    that ep is LEP.
+	  (VM_EP_LEP_P(ep)): detect ep is LEP or not.
+	  (VM_ENVVAL_BLOCK_PTR(ptr)): make block pointer.
+	  (VM_ENVVAL_BLOCK_PTR_P(v)): detect v is block pointer.
+	  (VM_ENVVAL_PREV_EP_PTR(ptr)): make prev environment pointer.
+	  (VM_ENVVAL_PREV_EP_PTR_P(v)): detect v is prev env pointer.
+
+	* vm.c: apply above changes.
+	  (VM_EP_LEP(ep)): get LEP.
+	  (VM_CF_LEP(cfp)): get LEP of cfp->ep.
+	  (VM_CF_PREV_EP(cfp)): utility function VM_EP_PREV_EP(cfp->ep).
+	  (VM_CF_BLOCK_PTR(cfp)): utility function VM_EP_BLOCK_PTR(cfp->ep).
+
+	* vm.c, vm_eval.c, vm_insnhelper.c, vm_insnhelper.h, insns.def:
+	  apply above changes.
+
+	* cont.c: ditto.
+
+	* eval.c, eval_intern.h: ditto.
+
+	* proc.c: ditto.
+
+	* thread.c: ditto.
+
+	* vm_dump.c: ditto.
+
+	* vm_exec.h: fix function name (on vm debug mode).
+
+Mon Jun 11 11:52:18 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* compile.c (iseq_set_sequence): nonstatic initializer of an
+	  aggregate type is a C99ism.
+
+	* compile.c (enum compile_array_type_t): comma at the end of enum
+	  list is a C99ism.
+
+	* vm_backtrace.c (enum LOCATION_TYPE): ditto.
+
+Mon Jun 11 06:31:33 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_proc_exec_n): revert the function removed at r35889.
+
+Mon Jun 11 06:20:50 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* thread_pthread.c (rb_thread_create_timer_thread): assign return
+	  value to the variable err.
+
+Mon Jun 11 06:17:06 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* thread_pthread.c (native_cond_initialize): fix typo in r36022.
+	  this cause a failure on FreeBSD 8.2 amd64.
+	 http://fbsd.rubyci.org/~chkbuild/ruby-trunk/log/20120610T130201Z.diff.html.gz
+
+Mon Jun 11 05:21:57 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* .gdbinit (SDR): add SDR function.  It's only for VM debugging.
+
+Sun Jun 10 21:50:45 2012  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* nacl/nacl_config.rb: Fixed for 32bit hosts.
+
+Sun Jun 10 20:23:14 2012  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	Fixes threading on NativeClient.
+
+	* thread_pthread.c (timer_thread_sleep): Extracted out a function from
+	  thread_timer(). Added an alternative implementation for platforms
+	  that lacks select(2) or pipe(2).
+	  (rb_thread_create_timer_thread, native_cond_initialize,
+	  native_cond_destroy): Replaced wrong HAVE_XXX checks.
+
+	* configure.in (pthread_attr_init): New check.
+
+Sun Jun 10 21:30:11 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_exec_without_timer_thread): renamed from rb_exec_err.
+	  (rb_exec_err): new stub function to call
+	  rb_exec_without_timer_thread.
+	  (rb_f_exec): call rb_exec_without_timer_thread.
+	  (rb_exec): call rb_exec_without_timer_thread.
+
+Sun Jun 10 21:13:10 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_fork): call rb_fork_internal instead of rb_fork_err.
+
+Sun Jun 10 20:55:59 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_fork_ruby): call rb_fork_internal directly.
+
+Sun Jun 10 20:19:40 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_fork_ruby): new function.
+	  (rb_f_fork): use rb_fork_ruby instead of rb_fork.
+	  (rb_daemon): ditto.
+
+	* io.c (pipe_open): use rb_fork_ruby instead of rb_fork.
+
+	* internal.h (rb_fork_ruby): declared.
+
+Sun Jun 10 18:58:16 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/net/http/response.rb: Remove a duplicated rdoc and leave a
+	  pointer.
+
+	* lib/net/http/responses.rb: Add RFC numbers to base on.
+
+Sun Jun 10 18:31:42 2012  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* configure.in (RUBY_NACL): Warns if $PATH does not contain the path
+	  to NativeClient SDK. PATH variable redefinition in GNUmakefile does
+	  not work for GNU make 3.81.
+
+Sun Jun 10 17:54:36 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.h (IS_STACK_DIR_UPPER): utility macro.
+
+	* thread_pthread.c (get_stack): seems stack size does not include
+	  guard size on Mac OS X.
+
+	* thread_pthread.c (ruby_init_stack): adjust stack size for offset of
+	  addr from the bottom.
+
+Sun Jun 10 15:49:47 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (retry_fork): call after_fork except in a child process.
+	  (rb_fork_internal): restrict after_fork call condition.
+
+Sun Jun 10 14:19:33 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: NetBSD 6 adds libexecinfo but it only works on amd64.
+	 http://www.mail-archive.com/source-changes-full@netbsd.org/msg38729.html
+
+Sun Jun 10 12:43:23 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_f_exec): call rb_exec_async_signal_safe except on
+	  Mac OS X.  cf. the comment in before_exec_non_async_signal_safe.
+
+Sun Jun 10 12:15:18 2012  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (popen_exec): don't call rb_thread_atfork_before_exec.  use
+	  rb_exec_async_signal_safe instead of rb_exec_err.
+	  (pipe_open): use rb_fork_async_signal_safe instead of rb_fork_err.
+
+Sun Jun 10 11:44:57 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_fork_internal): call after_fork only unless
+	  chfunc_is_async_signal_safe.
+
+Sun Jun 10 11:33:01 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_pkey_ec.c
+	  test/openssl/test_pkey_ec.rb: Add support for EC_POINT_mul.
+	  Patch provided by Sambasiva Suda. Thanks!
+	  [ruby-core:44408][ruby-trunk - Feature #6310]
+
+Sun Jun 10 10:48:15 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* lib/openssl/ssl.rb: Use a simple random number to generate the
+	  session id. MD5, as was used before, causes problems when
+	  using a FIPS version of OpenSSL. Issue was found by Jared
+	  Jennings, thank you!
+	  [ruby-trunk - Bug #6137]
+
+Sun Jun 10 10:27:34 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* NEWS: Add note about the new private key export behavior.
+
+Sun Jun 10 10:24:51 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_exec_async_signal_safe): exported.
+
+	* ext/pty/extconf.rb: modify $INCFLAGS to include internal.h
+
+	* ext/pty/pty.c: include internal.h.
+	  (chfunc): don't call rb_thread_atfork_before_exec.  use
+	  rb_exec_async_signal_safe instead of rb_f_exec.
+	  (establishShell): set up earg.  use rb_fork_async_signal_safe
+	  instead of rb_fork_err.
+
+	* internal.h (rb_exec_async_signal_safe): declared.
+	  (rb_fork_async_signal_safe): declared.
+
+Sun Jun 10 10:21:37 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl.c
+	  ext/openssl/ossl_pkey_rsa.c
+	  ext/openssl/ossl_pkey_dsa.c
+	  ext/openssl/ossl_pkey_ec.c: Forbid export passwords that are less
+	  than four characters long, as OpenSSL itself does not allow this.
+	  Issue found by Eric Hodel.
+	* ext/openssl/ossl_pkey_ec.c: Add export as an alias of to_pem,
+	  following the PKey interface contract.
+	* test/openssl/test_pkey_dsa.rb
+	  test/openssl/test_pkey_rsa.rb
+	  test/openssl/test_pkey_ec.rb: Add tests that assert correct
+	  behaviour when dealing with passwords that are less than four
+	  characters long.
+	  [ruby-core: 42281][ruby-trunk - Bug #5951]
+
+Sun Jun 10 10:14:26 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_f_exec): use rb_exec_arg_prepare.
+
+Sun Jun 10 06:43:51 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c: split after_exec into async-signal-safe part and rest.
+	  (after_exec_async_signal_safe): extracted from after_exec.
+	  (after_exec_non_async_signal_safe): ditto.
+	  (after_exec): call them.
+	  (rb_exec_async_signal_safe): call after_exec_async_signal_safe.
+	  (rb_exec_err): call after_exec_non_async_signal_safe instead of
+	  after_exec.
+
+Sun Jun 10 06:21:10 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* NEWS: document new features of Ruby OpenSSL.
+
+Sun Jun 10 03:09:41 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl.c: Fix error in example. Patch by David Albert.
+
+	  Add/extend existing documentation. Examples now also cover RSA
+	  signatures and PBKDF2.
+	  [ruby-core: 45154][ruby-trunk - Bug #6475]
+
+
+Sun Jun 10 01:41:45 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_ssl.c: Introduce SSLContext#renegotiation_cb and
+	  remove SSLContext#disable_client_renegotiation and related
+	  functionality introduced in r35797. The new callback approach
+	  gives clients maximum flexibility to decide on their own what to
+	  do on renegotiation attempts.
+	  Add documentation for SSL module and SSLError.
+	* test/openssl/test_ssl.rb: Add a test for
+	  SSLContext#renegotiation_cb.
+
+Sun Jun 10 01:37:18 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_fork_internal): initialize exc.
+
+Sun Jun 10 00:19:25 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c: don't use non async-signal-safe functions in a child
+	  process before exec, for invoking a command.
+	  (rb_exec_atfork): call rb_exec_async_signal_safe only.
+	  (retry_fork): take chfunc_is_async_signal_safe argument.  call
+	  before_fork and after_fork only unless chfunc_is_async_signal_safe.
+	  (send_child_error): take chfunc_is_async_signal_safe argument.
+	  send an exception only unless chfunc_is_async_signal_safe.
+	  (recv_child_error): take chfunc_is_async_signal_safe argument.
+	  receive an exception only unless chfunc_is_async_signal_safe.
+	  (rb_fork_internal): renamed from rb_fork_err and take
+	  chfunc_is_async_signal_safe argument.
+	  use rb_protect only unless chfunc_is_async_signal_safe.
+	  (rb_fork_err): call rb_fork_internal with false as
+	  chfunc_is_async_signal_safe.
+	  (rb_fork_async_signal_safe): call rb_fork_internal with true as
+	  chfunc_is_async_signal_safe.
+	  (rb_spawn_process): call rb_fork_async_signal_safe instead of
+	  rb_fork_err.
+
+Sat Jun  9 23:57:03 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_fork_err): rewrite a complex "if" statement.
+
+Sat Jun  9 23:44:29 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (before_exec_async_signal_safe): extracted from
+	  before_exec.
+	  (before_exec_non_async_signal_safe): ditto.
+	  (before_exec): call before_exec_async_signal_safe and
+	  before_exec_non_async_signal_safe.
+	  (rb_exec_async_signal_safe): call before_exec_async_signal_safe.
+	  (rb_exec_err): call before_exec_non_async_signal_safe instead of
+	  before_exec.
+
+Sat Jun  9 23:36:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* iseq.c (iseq_load, insn_operand_intern, rb_iseq_disasm)
+	  (rb_iseq_parameters): use rb_id2str() instead of rb_id2name() to
+	  keep encoding.
+
+	* string.c (rb_str_symname_p): new function that checks if the string
+	  is valid as a symbol name.  split from sym_inspect().
+
+Sat Jun  9 22:27:05 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (retry_fork): rewrite a complex "for" statement by
+	  simple statements.
+
+Sat Jun  9 21:50:04 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (retry_fork): extracted from rb_fork_err.
+	  (send_child_error): ditto.
+	  (recv_child_error): ditto.
+
+Sat Jun  9 17:21:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* iseq.c (iseq_load): type is a symbol, and invalid as ID in common.
+
+Sat Jun  9 10:57:14 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_exec_async_signal_safe): extracted from rb_exec_err.
+
+Sat Jun  9 09:31:07 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c: simplified because close_others option is always
+	  enabled by default.
+	  (rb_f_exec): don't need to set the option.
+	  (rb_exec_arg_prepare): don't need to set the option.  don't need
+	  default_close_others argument.
+	  (rb_spawn_internal): don't need to give default_close_others
+	  argument for rb_exec_arg_prepare.  don't need default_close_others
+	  argument.
+	  (rb_spawn_err): don't need to give default_close_others
+	  argument for rb_spawn_internal.
+	  (rb_spawn): don't need to give default_close_others
+	  argument for rb_spawn_internal.
+	  (rb_f_system): don't need to give default_close_others argument for
+	  rb_spawn_internal.
+	  (rb_f_spawn): don't need to give default_close_others argument for
+	  rb_exec_arg_prepare.
+
+Sat Jun  9 09:00:58 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_proc_exec): call before_exec() here addition to
+	  rb_exec_err.
+
+Sat Jun  9 08:30:52 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread_pthread.c (ruby_init_stack): use stack info if possible.
+
+Sat Jun  9 08:21:32 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* README.EXT (prepare extconf.rb):  Added note to see MakeMakefile for
+	  documentation of extconf.rb functions.  Patch by Zachary Scott.
+	  [ruby-trunk - Feature #6522]
+	* README.EXT (Appendix C):  Removed in favor of MakeMakefile.
+	  Patch by Zachary Scott.
+	* lib/mkmf.rb:  Merged documentation from README.EXT Appendix C.  Patch
+	  by Zachary Scott.
+
+Sat Jun  9 08:16:47 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/re.rdoc:  Completed wording in the description of the =~ operator.
+	  [ruby-trunk - Bug #6529]
+
+Sat Jun  9 08:09:38 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* string.c (rb_str_start_with):  Removed "p" from start_with? examples
+	  to match other String method examples.  [ruby-trunk - Bug #6553]
+	* string.c (rb_str_end_with):  Updated end_with? to use code markup
+	  instead of italic.
+
+Sat Jun  9 07:56:03 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/benchmark.rb:  Updated formatting of Benchmark documentation for
+	  consistency.  [ruby-trunk - Bug #6533]
+
+Sat Jun  9 07:46:26 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/delegate.rb:  Added documentation for Delegator#!.  Patch by
+	  Zachary Scott.  [ruby-trunk - Feature #6534]
+
+Sat Jun  9 07:39:50 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/http/responses.rb:  Add RFC 6585 response codes.  Patch by
+	  Sangil Jung.  [ruby-trunk - Feature #6480]
+	* lib/net/http/response.rb:  ditto
+	* lib/net/http.rb:  ditto
+	* lib/webrick/httpstatus.rb:  ditto
+
+Sat Jun  9 01:24:28 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_exec_err): before_exec() call moved from proc_exec_cmd
+	  and proc_exec_sh.
+	  (rb_proc_exec): ditto.
+
+Sat Jun  9 01:11:07 2012  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/intern.h (rb_exec_arg_init): declaration changed to
+	  return a value.
+
+	* process.c (rb_exec_arg_init): return a value.
+
+Fri Jun  8 23:44:14 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c: don't check the availability of FD_CLOEXEC.  It should
+	  be available if fork() is available.
+
+	* io.c: ditto.
+
+Fri Jun  8 22:39:32 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_fork_err): revert r35955.  The condition needs !chfunc
+	  to close ep[0] and ep[1].  The catched exception is re-raised
+	  immediately after that if status is not NULL.
+
+Fri Jun  8 19:43:33 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_exec_err): after_exec() call moved from proc_exec_cmd
+	  and proc_exec_sh.
+	  (rb_proc_exec): ditto.
+
+Fri Jun  8 19:00:59 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (ARGV_COUNT): unused macro removed.
+	  (ARGV_SIZE): ditto.
+	  (ALLOC_ARGV): ditto.
+	  (ALLOC_ARGV_WITH_STR): ditto.
+
+Fri Jun  8 16:19:33 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/runner.rb (src_testdir): expand real path so that
+	  TestGem#test_self_find_files does not fail by aliased load path when
+	  srcdir contains a symbolic link.
+
+	* tool/runruby.rb (srcdir): ditto.
+
+Fri Jun  8 12:04:39 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (rb_fork_err): error state in the child process is prior
+	  to exceptions in proc_syswait().
+
+	* process.c (rb_fork_err): determine status on errors.
+
+	* ext/pty/pty.c (establishShell): reraise exception if something
+	  raised during sleep.
+
+	* ext/pty/pty.c (establishShell): now needs status to protect from
+	  exceptions in rb_fork_err().
+
+Thu Jun  7 22:13:05 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_fork_err): Fix the condition to use rb_protect.
+
+Thu Jun  7 20:29:12 2012  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/intern.h: rb_exec_arg and related stuff moved back from
+	  internal.h
+
+Thu Jun  7 15:53:03 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* .gdbinit: add function `trace_machine_instructions' to trace
+	  in native machine assemble.
+	  See https://bugs.ruby-lang.org/projects/ruby-trunk/wiki/MachineInstructionsTraceWithGDB
+	  for more details.
+
+Wed Jun  6 21:31:21 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (proc_exec_cmd) renamed from proc_exec_v.
+	  (proc_exec_sh): renamed from rb_proc_exec_e.
+	  (proc_spawn_cmd_internal): renamed from proc_spawn_v.
+	  (proc_spawn_cmd): renamed from proc_spawn_n.
+	  (proc_spawn_sh): renamed from proc_spawn.
+
+Wed Jun  6 21:18:47 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* process.c (try_with_sh): please take care of the macro defined by
+	  you.
+
+Wed Jun  6 20:45:08 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (proc_exec_v): don't call dln_find_exe_r here because it
+	  is not async-signal-safe and proc_exec_v is called in a child
+	  process.
+	  command_abspath field of rb_exec_arg.
+	  (rb_exec_fillarg): call dln_find_exe_r and set command_abspath.
+	  (rb_exec_err): Give the absolute path of the invoking command for
+	  proc_exec_v, instead of the command name.
+
+	* internal.h: add command_abspath field for rb_exec_arg.
+
+Wed Jun  6 20:08:01 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (try_with_sh): take envp argument.
+	  (exec_with_sh): ditto.  use it for execve.
+	  (proc_exec_v): provide envp for try_with_sh.
+
+Wed Jun  6 13:25:04 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c, include/ruby/win32.h (rb_w32_wrap_io_handle): new API.
+	  this API wraps an I/O handle (HANDLE or SOCKET) and returns fd.
+	  the second parameter should be combination of O_*, for example,
+	  O_RDWR | O_BINARY | O_NOINHERIT.
+
+	* win32/win32.c, include/ruby/win32.h (rb_w32_unwrap_io_handle): new
+	  API.  this API unwraps an I/O handle and close the fd (not closes
+	  the handle itself).
+
+	[Feature #4906] [ruby-core:37227]
+
+Wed Jun  6 13:18:26 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_close): of course, console handle is not socket.
+
+Wed Jun  6 12:37:43 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* process.c (rb_run_exec_options_err): allocate a temporary buffer for
+	  run_exec_dup2() for restoring fds on non-fork environments.
+
+Wed Jun  6 09:45:21 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/dl/test_c_{struct_entry,union_entity}.rb: sorry, typos.
+
+Wed Jun  6 05:27:54 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_exec_fillarg): check use_shell field before accessing
+	  a union field.
+
+Wed Jun  6 04:58:44 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_spawn_process): prog variable is not used for Unix.
+
+Wed Jun  6 00:20:37 2012  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (rb_exec_arg_init): change return type to void.
+
+	* process.c (rb_exec_arg_init): don't return a value.
+	  (rb_exec_arg_prepare): ditto.
+	  (rb_spawn_process): don't take the prog argument.  extract the
+	  information from earg.
+	  (rb_spawn_internal): follow rb_spawn_process change.
+	  (rb_f_spawn): ditto.
+
+	* io.c (pipe_open): don't take the prog argument.  extract the
+	  information from eargp.
+	  (pipe_open_v): follow pipe_open change.
+	  (pipe_open_s): ditto.
+
+Tue Jun  5 23:51:33 2012  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (rb_exec_arg): use union to represent command invocation
+	  with/without shell.
+
+	* process.c: follow the rb_exec_arg change.
+
+	* io.c (pipe_open): ditto.
+
+Tue Jun  5 22:28:46 2012  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h: rb_exec_arg and related stuff moved from intern.h
+
+	* include/ruby/intern.h (rb_proc_exec_n): removed.
+
+Tue Jun  5 21:57:22 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_exec_arg_fixup): allocate a temporary buffer for
+	  run_exec_dup2 here because it should be async-signal-safe.
+	  (run_exec_dup2): use the temporary buffer.
+	  (run_exec_dup2_tmpbuf_size): new function.
+
+	* include/ruby/intern.h (rb_exec_arg): add dup2_tmpbuf field.
+
+Tue Jun  5 20:13:15 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_obj_init_copy): should check if trusted too.
+
+Tue Jun  5 19:59:13 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (strtok): declaration removed because it is not used.
+
+Tue Jun  5 19:33:51 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (proc_spawn): don't detect simple command line here
+	  because rb_exec_fillarg already did.
+
+Tue Jun  5 19:21:10 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_exec_fillarg): bail out a loop eagerly.
+
+Tue Jun  5 19:15:14 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c: add comments about async-signal-safe.
+
+	* io.c: ditto.
+
+Tue Jun  5 09:25:10 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* io.c:  Edited documentation for IO and File open and new and
+	  Kernel#open for consistency and clarity.
+
+Mon Jun  4 21:53:56 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_sysinit): let the system not display the
+	  critical-error-handler message box and the Windows Error Reporting
+	  dialog.  [ruby-core:45389] [Bug #6535]
+
+Mon Jun  4 19:36:25 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_exec_fillarg): allocate one more element before
+	  beginning in argv_str for try_with_sh.
+
+	* internal.h (ARGVSTR2ARGC): adjust for the above change.
+	  (ARGVSTR2ARGV): ditto.
+
+Mon Jun  4 19:17:06 2012  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (ARGVSTR2ARGC): defined.
+	  (ARGVSTR2ARGV): defined.
+
+	* process.c (proc_exec_v): use ARGVSTR2ARGV.
+	  (rb_spawn_process): use ARGVSTR2ARGC and ARGVSTR2ARGV.
+
+	* io.c (pipe_open): use ARGVSTR2ARGV.
+
+Mon Jun  4 16:13:00 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.h: remove magical code "lfp[0] & 0x02".
+	  Current VM doesn't use this bit.
+
+	* vm_core.h (RUBY_VM_GET_BLOCK_PTR): added.
+
+	* eval.c (rb_block_given_p): use RUBY_VM_GET_BLOCK_PTR().
+
+	* vm_eval.c (rb_f_block_given_p): ditto.
+
+Mon Jun  4 15:39:33 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (constat_apply): apply VT100 functions.
+	  [ruby-core:44958] [Feature #6418]
+
+	* win32/win32.c (constat_parse): parse some VT100 escape sequence.
+
+Mon Jun  4 14:06:12 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* process.c (rb_exec_err): should preserve errno.
+
+Mon Jun  4 13:10:11 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/dl/test_c_{struct_entry,union_entity}.rb: broken require.
+
+Mon Jun  4 12:01:21 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_backtrace.rb: fix test.
+	  Windows path includes `:' character.
+
+Mon Jun  4 11:42:39 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h (rb_location_t): fix type and field name.
+	  (1) rename rb_location_t to rb_iseq_location_t.
+	  (2) rename field names of rb_iseq_location_t to adjust
+	      RubyVM::Backtrace::Location methods.
+	      (2-1) filename -> path
+	      (2-2) filepath -> absolute_path
+	      (2-3) basename -> base_label
+	      (2-4) name -> label
+	  (3) rename filed name rb_iseq_location_t#line_no to
+	      rb_iseq_location_t#first_lineno to clear purpose of this field.
+	  (4) The field names rb_binding_t#(filename|line_no) are also renamed
+	      to rb_binding_t#(path|first_lineno).
+
+	* compile.c: apply above changes.
+
+	* iseq.c: ditto.
+
+	* proc.c: ditto.
+
+	* vm*.c: ditto.
+
+Mon Jun  4 11:40:28 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* marshal.c (r_object0): also load TYPE_USRMARSHAL, TYPE_DATA using
+	  compatible loader.
+
+Mon Jun  4 11:33:42 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* process.c (rb_run_exec_options_err): restore save_env() call for
+	  non-fork environments.
+
+	* process.c (rb_exec_err): restore environments after the failure of
+	  exec to fix [ruby-core:44093] [Bug #6249] on non-fork environments
+
+Mon Jun  4 10:42:04 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* io.c (pipe_open): follow up changes in r35889.
+
+	* process.c (proc_spawn_n): now uses char ** instead of VALUE *.
+
+	* process.c (rb_spawn_process): prog is now VALUE of String, not char *.
+
+Mon Jun  4 06:12:43 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* marshal.c (r_object0): remove old warning for _alloc.
+
+Mon Jun  4 04:24:06 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* marshal.c: experimental test aborted.
+	* complex.c: ditto.
+	* rational.c: ditto.
+	* include/ruby/intern.h: ditto.
+
+Mon Jun  4 00:45:18 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_spawn_process): fix for Windows.  not tested.
+
+Mon Jun  4 00:11:51 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_proc_exec_e): don't use ISSPACE().  \f, \r and \v
+	  are not word separator in Bourne shell.
+
+Sun Jun  3 23:47:30 2012  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/intern.h (rb_exec_arg): remove argc and argv fields.
+	  add use_shell, argv_str and argv_buf fields.
+
+	* process.c (rb_proc_exec_e): don't split shell command line arguments
+	  here to avoid memory allocation in a child process.
+	  (rb_exec_fillarg): split shell command line arguments here.
+	  (proc_exec_v): takes argv_str argument instead of argv.
+	  (rb_proc_exec_ne): removed.
+	  (rb_proc_exec_n): removed.
+	  (rb_run_exec_options_err): don't initialize the removed fields.
+	  (rb_exec_err): don't initialize the removed fields.
+	  call proc_exec_v directly instead of rb_proc_exec_ne.
+	  (rb_spawn_process): use use_shell field.
+
+Sun Jun  3 21:53:00 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* GPL: update text of GPLv2. [ruby-core:44488] [Bug #6328]
+	  http://www.gnu.org/licenses/gpl-2.0.txt
+
+Sun Jun  3 21:22:52 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_exec_getargs): remove rb_exec_arg argument.
+
+Sun Jun  3 21:14:26 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* marshal.c: calls directly rb_{Complex,Rational}_marshal_load().
+	  But now disabled. [experimental]
+	* complex.c: followed the above.
+	* rational.c: ditto.
+	* include/ruby/intern.h: ditto.
+
+Sun Jun  3 21:18:17 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_check_argv): use rb_str_new_frozen instead of
+	  rb_str_new4.
+
+Sun Jun  3 20:10:52 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_proc_exec_e): extended version of rb_proc_exec() to
+	  call execle().
+	  (rb_proc_exec): use rb_proc_exec_e().
+	  (rb_exec_err): use rb_proc_exec_e().
+
+Sun Jun  3 19:47:18 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* thread.c (vm_living_thread_num): suppress a warning.
+
+Sun Jun  3 17:23:52 2012  Tanaka Akira  <akr@fsij.org>
+
+	* use execve() to preserve environment variables when exec method is
+	  failed.  [ruby-core:44093] [ruby-trunk - Bug #6249]
+
+	* include/ruby/intern.h (rb_exec_arg): add envp_str and envp_buf field
+	  to store envp of execve().
+
+	* process.c (proc_exec_v): takes envp_str as an argument and use it
+	  for execve().
+	  (rb_proc_exec_ne): extended version of rb_proc_exec_n().
+	  (rb_proc_exec_n): use rb_proc_exec_ne().
+	  (rb_proc_exec): follow proc_exec_v() change.
+	  (fill_envp_buf_i): new function.
+	  (rb_exec_arg_fixup): set up envp_str and envp_buf.
+	  (save_env_i): removed.
+	  (save_env): removed.
+	  (rb_run_exec_options_err): don't modify environment variables.
+	  (rb_exec_err): use rb_proc_exec_ne().
+
+Sun Jun  3 16:33:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* marshal.c: revert r35879 "now marshal_{load|dump} are external."
+
+	* complex.c (nucomp_marshal__{dump,load}): should use rb_marshal_{dump,load}.
+
+	* rational.c (nurat_marshal__{dump,load}): ditto.
+
+Sun Jun  3 14:13:58 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: checks whether the object is frozen or not.
+
+Sun Jun  3 14:00:51 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* complex.c: wrote Complex#_dump and Complex::load.  But now
+	  disabled (due to compatibility) [experimental].
+
+	* rational.c: wrote Rational#_dump and Rational::load. ditto.
+
+Sun Jun  3 10:23:32 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* complex.c (nucomp_marshal_load): [ruby-core:45394]
+	* rational.c (nurat_marshal_load): ditto.
+
+Sun Jun  3 03:15:46 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* regparse.c (onig_number_of_names): suppress a warning.
+
+Sun Jun  3 01:36:52 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_backtrace.c: change names.
+	  (1) Class name: RubyVM::FrameInfo -> RubyVM::Backtrace::Location.
+	  (2) Method name: RubyVM::FrameInfo.caller ->
+	      Kernel.caller_locations.
+	  (3) Instance methods of
+	      RubyVM::FrameInfo (RubyVM::Backtrace::Location)
+	      (3-1) name -> label
+	      (3-2) basename -> base_label (basename is confusing with
+		    File.basename)
+	      (3-3) line_no -> lineno (We have already similar name
+		    File#lineno, commented by kou [ruby-dev:45686]).
+	      (3-4) filename -> path.
+	      (3-5) filepath -> absolute_path.
+	      (3-5) iseq -> removed (we will make other APIs to access iseq
+		    and other information of frame for debugging).
+
+	* test/ruby/test_backtrace.rb: apply above changes.
+	  And apply comment from kou [ruby-dev:45686].
+
+Sun Jun  3 00:49:11 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* common.mk: fix to build vm_backtrace.c only itself (vm_backtrace.c
+	  is no longer included from vm.c).  I hope this separation reduce
+	  compile time of vm.c.
+
+	* internal.h: ditto.
+
+	* vm.c, vm_core.h, vm_dump.c, vm_eval.c: ditto.
+
+	* vm_eval.c: some functions (callee, etc) moved to vm_backtrace.c.
+
+Sun Jun  3 00:20:53 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_backtrace.c: added.  Separate backtrace related functions to
+	  this file.
+
+	* vm.c, common.mk: ditto.
+
+Sat Jun  2 18:09:02 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/ipaddr.rb: Inhibit zero-filled octets in an IPv4 address in
+	  all platforms. [ruby-dev:45671]
+
+	* lib/ipaddr.rb: Allow the x:x:x:x:x:x:d.d.d.d form not limited to
+	  IPv4 mapped/compatible addresses.  This change also makes it
+	  possible for the parser to understand IPv4 mapped and compatible
+	  IPv6 addresses in non-compressed form.
+
+	* lib/ipaddr.rb: Stop exposing IPSocket.valid*? methods which were
+	  only usable on non-IPv6-ready platforms.
+
+Sat Jun  2 16:59:00 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (rb_enc_cr_str_buf_cat): don't reset coderange as unknown.
+	  the condition 'ptr_a8 && str_cr != ENC_CODERANGE_7BIT' means not
+	  unknown, str is also ASCII-8BIT because str_encindex == ptr_encindex,
+	  and nont (str_cr == ENC_CODERANGE_UNKNOWN) and
+	  str_cr != ENC_CODERANGE_7BIT means str_cr is valid because ASCII-8BIT
+	  can't be broken. [ruby-dev:45688] [Bug #6509]
+
+Sat Jun  2 07:04:48 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/re.rdoc (Performance):  Replaced incorrect example of reducing
+	  backtracking through anchoring with reduced backtracking through a
+	  range.  [ruby-trunk - Bug #6525]
+
+Sat Jun  2 06:34:15 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/re.rdoc (Performance):  Removed useless sample output from final
+	  performance example and switched from #match to #=~ for consistency.
+	  [ruby-trunk - Bug #6524]
+
+Fri Jun  1 09:30:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (class_or_module_required): extract check for class or
+	  module.
+
+Fri Jun  1 08:50:47 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* array.c:  Updated Array documentation formatting.  Patch by Zachary
+	  Scott.  [ruby-trunk - Feature #6517]
+
+Fri Jun  1 06:57:10 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/dl/lib/dl/struct.rb (DL::CStructEntity#set_ctypes):  Refactored
+	  #set_ctypes using newer ruby features to simplify its implementation.
+	* test/dl/test_c_struct_entry.rb (class DL):  Test to verify
+	  refactoring.
+
+Fri Jun  1 06:40:25 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* object.c (Init_Object):  Restored Kernel documentation based on
+	  Pickaxe book documentation.  Patch by Zachary Scott.
+	  [ruby-trunk - Feature #6521]
+
+Fri Jun  1 06:29:42 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* object.c (rb_equal):  Let Object be a link in #=== documentation.
+	  Patch by Zachary Scott.  [ruby-trunk - Feature #6518]
+
+Thu May 31 09:27:06 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/dl/lib/dl/struct.rb (DL::CStructEntity::size):  Refactored ::size
+	  to remove unused variables and simplify using newer ruby features.
+	* test/dl/test_c_struct_entry.rb:  Test to validate refactoring
+
+Thu May 31 08:40:34 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/dl/lib/dl/struct.rb (DL::CUnionEntity#set_ctypes):  Refactored
+	  #set_types to reuse DL::CUnionEntity::size
+	* test/dl/test_c_union_entity.rb:  Added test
+
+Thu May 31 08:20:14 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/dl/lib/dl/struct.rb (DL::CUnionEntity::size):  Fixed ::size to
+	  return the size of the union.
+	* test/dl/test_c_union_entity.rb:  Test for DL::CUnionEntity::size
+
+Thu May 31 07:45:43 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/dl:  Added documentation.  Patch by Vincent Batts.
+	  [ruby-trunk - Bug #6496]
+
+Wed May 30 16:30:00 2012  Kenta Murata  <mrkn@cookpad.com>
+
+	* ext/bigdecimal/lib/bigdecimal/jacobian.rb,
+	  ext/bigdecimal/lib/bigdecimal/newton.rb:
+	  fix documentation comments.
+	  Patch by alperakgun from github.com/shyouhei/ruby/pull/8
+
+Wed May 30 16:20:00 2012  Kenta Murata  <mrkn@cookpad.com>
+
+	* ext/bigdecimal/lib/bigdecimal/jacobian.rb (Jacobian#dfdxi):
+	  fix jacobian to get stuck in an infinite loop when a solution is not
+	  found due to forget to increment nRetry counter.
+	  Patch by alperakgun from github.com/shyouhei/ruby/pull/8
+
+Wed May 30 10:58:31 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* time.c (utc_offset_arg): utc offset can be precision in seconds.
+	  e.g. old Europe/Lisbon (c.f. [ruby-dev:40066])
+
+Wed May 30 06:20:29 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* error.c (exc_set_backtrace):  Updated documentation to indicate
+	  set_backtrace allows a string as well as an array of strings.
+	  [ruby-trunk - Bug #6501]
+
+Tue May 29 17:28:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* strftime.c (rb_strftime_with_timespec): support GNU extension triple
+	  colons modifier.  [EXPERIMENTAL]
+
+	* strftime.c (rb_strftime_with_timespec): check conversion with locale
+	  modifier.
+
+	* strftime.c (rb_strftime_with_timespec): colons are valid only for
+	  'z' and must come just before it.
+
+Mon May 28 16:56:55 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit.rb (Test::Unit::Runner#_prepare_run): StatusLineOutput
+	  needs job_status to be :replace.
+
+Mon May 28 13:35:33 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (do-install-*): fix dependencies.  based on the patch by
+	  nagachika at [ruby-dev:45683].  [Bug #6506]
+
+Mon May 28 12:03:04 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (obj_free): doesn't free a method table if it doesn't
+	  exist. [ruby-dev:44436]
+	* test/ruby/test_gc.rb (class TestGc): added the test case for
+	  this issue.
+
+Sun May 27 23:37:48 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/bm_vm1_lvar_init.rb: added.
+	  This benchmark measures a initialize time of non-used variable.
+
+	* benchmark/bm_vm1_lvar_set.rb: added.
+	  This benchmark measures a local variables initialization time.
+
+	* benchmark/bm_vm2_bigarray.rb: added.
+	  This benchmark mesures a big array literal creation time.
+
+	* benchmark/bm_vm2_bighash.rb: added.
+	  This benchmark mesures a big hash literal creation time.
+
+	* benchmark/bm*: change notation "i=0" to "i = 0".
+
+Sun May 27 13:33:26 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/driver.rb: fix to continue benchmarks when
+	  an error is occurred.
+
+Sun May 27 11:27:50 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit.rb (Test::Unit::Runner#_prepare_run): fix operator
+	  precedence, so that platform and TERM should be counted.
+
+Sun May 27 10:02:33 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_strftime.c: allows %Ok and %Ol.
+
+Sun May 27 09:29:20 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: modified doc.
+
+Sat May 26 19:04:34 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: added description.
+
+Sat May 26 18:14:57 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_strftime.c: reduced the code.
+
+Sat May 26 18:08:59 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* time.c: modified doc.
+	* ext/date/date_core.c: ditto.
+
+Sat May 26 17:05:45 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (backtrace_*): change type of lev and n from size_t to int.
+	  Also set type of rb_backtrace_t#backtrace_size to int.
+	  A patch from nobu.
+
+	* vm_eval.c: ditto.
+
+Sat May 26 16:26:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (realpath_rec): UNC prefix does not end with path separator,
+	  so new separator is needed after it.
+
+Sat May 26 15:29:22 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_backtrace.rb (test_caller_lev):
+	  decrease recursion size.
+
+Sat May 26 13:50:48 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* NEWS: add Kernel#caller's second argument.
+
+Sat May 26 13:40:29 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (RubyVM::FrameInfo): add a class to access each frame
+	  information.  You don't need to parse strings from caller().
+	  FrameInfo has the following methods:
+	    FrameInfo#name: method name, class name, etc with decorations.
+	    FrameInfo#basename: name without decorations.
+	    FrameInfo#line_no: line number.
+	    FrameInfo#filename: file name.
+	    FrameInfo#filepath: full filepath.
+	    FrameInfo#iseq: iseq if it is iseq frame (defined by ruby script)
+	    FrameInfo#to_s: return caller() method style string.
+	  RubyVM::FrameInfo.caller(n, lev) returns array of FrameInfo objects.
+	  The name "RubyVM::FrameInfo.caller" is long and ambiguous (it is
+	  confusing with Kernel::caller() method), we need to change the name
+	  before Ruby 2.0 release. Good names or comments are welcome.
+
+	* test/ruby/test_backtrace.rb: add a test for above change.
+
+Sat May 26 12:18:09 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (frame_info_to_str): add `break'.
+
+	* vm.c (backtrace_object): remove lev and n parameter.
+	  backtrace_object always returns all of backtrace information.
+
+	* vm.c (rb_backtrace_to_str_ary): fix to use backtrace_object().
+	  This change improve performance of caller(lev, n).
+
+	* benchmark/bm_vm3_backtrace.rb: added to check above improvement.
+	  FYI: measurement on my laptop, 1.9.3p229 needs 5.125 sec,
+	  and current trunk only needs 0.299sec.
+
+Sat May 26 11:05:09 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (rb_frame_info_t): keep previous ISEQ frame info for CFUNC
+	  frame info.  And fix to cache a calculated line_no of ISEQ frame
+	  info.
+
+Sat May 26 09:54:53 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_ssl.c: Allow disabling client-side renegotiation.
+	* test/openssl/test_ssl.rb: Simple tests for this.
+
+	  Client-side renegotiation is still considered problematic, even
+	  when used in the context of secure renegotiation (RI, RFC 5746).
+	  The changes allow users to either completely disable client
+	  renegotiation on the server, or to specify a maximum number of
+	  handshakes allowed in total. The number of total handshakes is
+	  counted in a callback set as SSL_set_info_callback. If the
+	  maximum number of handshakes is exceeded an error will be raised
+	  We do not support renegotiation in the OpenSSL extension, therefore
+	  this feature can only be tested externally.
+	  The feature is opt-in, the default setting will be to allow
+	  unlimited client renegotiation, as was the case before.
+
+Fri May 25 23:38:58 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* test/openssl/test_ssl.rb: Clarify the intention of errors to be
+	  expected. Two errors are possible when connection is refused due
+	  to a protocol version that was explicitly disallowed,
+	  OpenSSL::SSL::SSLError or Errno::ECONNRESET, depending on the
+	  OpenSSL version in use.
+
+Fri May 25 22:19:40 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_ssl.c: Revert r35583
+	* test/openssl/test_ssl.rb: Handle ECONNRESET in code instead to avoid
+	  the test failing in Ruby CI [1]
+
+	[1] http://u64.rubyci.org/~chkbuild/ruby-trunk/log/20120507T190102Z.log.html.gz#test-all
+
+Fri May 25 19:51:36 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_eval.c (rb_f_caller): caller() method accepts second optional
+	  argument `n' which specify how many frames should return.
+	  For example, `caller(0, 1)' returns only one frame information
+	  which calls caller() method.  If there are less than n frame
+	  information, then all frame information are returned.  If n is 0,
+	  then always return [].
+	  This fix is part of [ruby-dev:42345] [Ruby 1.9-Feature#3917].
+	  However, performance and features are not enough.
+	  RDoc is also not available.
+
+	* test/ruby/test_backtrace.rb: add a test for above.
+
+Fri May 25 17:05:07 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (oldbt_init, vm_backtrace_str_ary): arg->data should
+	  be initialized before calling `backtrace_each()'.
+
+Fri May 25 16:11:27 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* trunk/ext/-test-/printf/printf.c: change function names because of
+	  conflict with msvcrt.  fixed build error of mswin.
+
+Fri May 25 10:52:52 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c: refactoring backtrace related functions.
+	  (1) unify similar functions (rb_backtrace_each() and
+	      backtrace_object()).  backtrace_each() is a unified function.
+	      variation:
+	      a) backtrace_object(): create backtrace object.
+	      b) vm_backtrace_str_ary(): create bt as an array of string.
+	      c) vm_backtrace_print(): print backtrace to specified file.
+	      d) rb_backtrace_print_as_bugreport(): print backtrace on
+	                                            bugreport style.
+	  (2) remove rb_backtrace_each().  Use backtrace_each() instead.
+	  (3) change the type of lev parameter to size_t.
+	      a) lev == 0 means current frame (exception, etc use it).
+	      b) lev == 1 means upper frame (caller(0) use it).
+
+	* vm_core.h, vm_dump.c, vm_eval.c: ditto.
+
+	* vm.c (backtrace_object(), vm_backtrace_str_ary()): fix to return a
+	  correct size of caller(lev) array.
+	  Let n be a "caller(0).size" then ln as caller(lev).size should be
+	  (n - lev).  However, the previous implementation returns a wrong
+	  size array (ln > n - lev).  [ruby-dev:45673]
+
+	* test/ruby/test_backtrace.rb: add tests for backtrace.
+
+Fri May 25 08:51:39 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* enum.c (enum_count):  Enumerable#count no longer uses #size when
+	  counting elements.  Patch by Nobuhiro IMAI.  [ruby-trunk - Bug #6473]
+
+Fri May 25 01:15:39 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* sprintf.c (ruby__sfvextra): [EXPERIMENTAL] use inspect instead of
+	  to_s if plus flag is given.
+
+	* vsnprintf.c (BSD_vfprintf): pass sign flag.
+
+Fri May 25 00:37:22 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/rubygems/test_gem_indexer.rb (setup, teardown): save @tempdir
+	  to remove it properly.  [Bug #5348]
+
+Thu May 24 23:36:51 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vsnprintf.c (BSD_vfprintf): [EXPERIMENTAL] object representation in
+	  rb_enc_vsprintf(). [Feature #5896]
+
+Thu May 24 15:33:01 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_method.c (rb_method_defined_by): removed.
+	  nobu pointed out that rb_method_basic_definition_p() is enough
+	  for last commit.
+
+	* error.c, eval_error.c: change for above.
+
+Thu May 24 14:30:13 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c: add RubyVM::Backtrace object (btobj).
+	  Backtrace information contains an array consists of location
+	  information for each frames by string.
+	  RubyVM::Backtrace object is lightweight backtrace information,
+	  which contains complete information to generate traditional style
+	  backtrace (an array of strings) with faster generation.
+	  If someone accesses to backtrace information via
+	  Exception#backtrace, then convert a RubyVM::Backtrace object to
+	  traditional style backtrace.
+	  This change causes incompatibility on marshal dumped binary
+	  of Exception.  If you have any trouble on it, please tell us
+	  before Ruby 2.0 release.
+	  Note that RubyVM::Backtrace object should not expose Ruby level.
+
+	* error.c, eval.c, vm_eval.c: ditto.
+
+	* internal.h: ditto.
+
+	* eval_error.c: fix to skip "set_backtrace" method invocation in
+	  creating an exception object if it call a normal set_backtrace
+	  method (defined by core).
+
+	* test/ruby/test_settracefunc.rb: fix for above change.
+
+	* vm_method.c (rb_method_defined_by): added.  This function
+	  checks that the given object responds with the given method
+	  by the given cfunc.
+
+	* benchmark/bm_vm2_raise1.rb, benchmark/bm_vm2_raise2.rb:
+	  add to measure exception creation speed. raise1 create
+	  exception objects from shallow stack frame.  raise2 create
+	  exception objects from deep stack frame.
+
+Thu May 24 12:07:46 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (io_strip_bom): check EOF.  [Bug #6487][ruby-core:45203]
+
+Wed May 23 22:06:14 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http/header.rb (Net::HTTPHeader#range): fix broken parser of
+	  HTTP Range request. Old one can't parse invalid specs and multiple
+	  specs correctly.
+
+Wed May 23 10:18:54 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (finish_overlapped_socket, overlapped_socket_io):
+	  replace ECONNABORTED to EPIPE in send, sendto and sendmsg to improve
+	  BSD socket compatibility.  this change removes a failure on the test
+	  of net/ftp.
+
+Wed May 23 05:35:58 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/http.rb:  Broke up Net::HTTP into individual files.
+	  [ruby-trunk - Feature #6435]
+	* lib/net/http/backward.rb:  ditto.
+	* lib/net/http/response.rb:  ditto.
+	* lib/net/http/exceptions.rb:  ditto.
+	* lib/net/http/responses.rb:  ditto.
+	* lib/net/http/generic_request.rb:  ditto.
+	* lib/net/http/header.rb:  ditto.
+	* lib/net/http/request.rb:  ditto.
+	* lib/net/http/proxy_delta.rb:  ditto.
+	* lib/net/http/requests.rb:  ditto.
+
+Wed May 23 05:15:11 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* class.c (rb_mod_init_copy):  Clear the cached inspect string of a
+	  dup'd anonymous module or class.  [ruby-trunk - Bug #6454]
+	* test/ruby/test_module.rb (class TestModule):  ditto
+
+Tue May 22 16:49:15 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h: add a data type rb_location_t to store iseq location
+	  information.
+	  rb_location_t#filename, filepath, name and line_no was moved from
+	  rb_iseq_t.  rb_location_t#basename is a new field which is
+	  similar to `name' field without any decoration.
+	  `name' field contains some decoration such as `block in foo'.
+	  `basename' only contains `foo'.
+	  rb_iseq_t contains memory object of rb_location_t.
+
+	* iseq.c: setup rb_location_t for each rb_iseq_t memory objects.
+
+	* compile.c, proc.c, vm.c, vm_dump.c, vm_eval.c, vm_insnhelper.c,
+	  vm_method.c: support about it.
+
+Tue May 22 00:45:05 2012  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* struct.c (rb_struct_members): Refactoring.  As Struct#members had
+	  returned an array of String, the old code was needed to convert
+	  Symbols to Strings.  But it is almost unnecessary because the
+	  method now returns an array of Symbols.  A patch by Masaki
+	  Matsushita <glass.saga at gmail dot com>  [Feature #6218]
+	  [ruby-dev:45451]
+
+Mon May 21 19:20:25 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/ftp.rb (Net::FTP#retrbinary): close only if conn is not nil
+	  because transfercmd may fail and return nil.
+
+	* lib/net/ftp.rb (Net::FTP#retrlines): ditto.
+
+Mon May 21 15:10:28 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* ext/syslog/syslog.c: Classify constants and macros into several
+	  sub-modules. (Syslog::Priority, Syslog::Level, Syslog::Option
+	  and Syslog::Macros)
+
+	* ext/syslog/syslog.c (mSyslog_inspect): Use rb_sprintf().
+
+	* ext/syslog/syslog.c (mSyslog_inspect): Make sure self is a
+	  module before calling rb_class2name().
+
+Mon May 21 12:44:11 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* .travis.yml (install): It seems tcl/tk is skipped in Travis
+	  CI. Trying to fix the situation.
+
+Mon May 21 12:11:25 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enc/depend (ENCOBJS): add dependencies.
+
+	* enc/make_encmake.rb (target_encodings): extract dependencies.
+
+Mon May 21 11:26:17 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/ftp.rb (Net::FTP#transfercmd): rescue shutdown.
+
+Sun May 20 23:00:11 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/extmk.rb (extmake): reopen $stdout to NULL, since setting
+	  $stdout cannot affect child processes.
+
+Sun May 20 21:36:39 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* enc/shift_jis.c (code_to_mbclen): return
+	  ONIGERR_INVALID_CODE_POINT_VALUE if the code is invalid.
+
+	* string.c (tr_next): increment character until the code
+	  is a valid character. [ruby-dev:45652] [Bug #6450]
+
+Sun May 20 12:25:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* Makefile.in (LIBRUBY_SO): link EXTSOLIBS too.
+
+	* ext/extmk.rb (mf.macro): use EXTSOLIBS instead of SOLIBS to get rid
+	  of discard libraries needed by default.  [Bug #6462]
+
+Sat May 19 19:04:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/extmk.rb (command_output): ENCOBJS is needed for all linked
+	  ruby, if --disable-shared and --with-static-linked-ext.
+
+	* ext/extmk.rb (command_output): dmyext is needed as DLDOBJS if no
+	  static linked extensions.
+
+	* Makefile.in, common.mk (PROGRAM): no extension libraries.
+
+	* common.mk (build-ext): pass macros for libruby.so.
+
+	* ext/extmk.rb (command_output): link extension libraries and encoding
+	  libraries into libruby.so, not ruby executable.
+
+	* ext/extmk.rb (command_output): fold long macro lines.
+
+	* Makefile.in (LIBEXT): add macro.
+
+	* configure.in (ENCOBJS, EXTOBJS): use LIBEXT, not hardcoded suffix.
+
+	* Makefile.in (LIBRUBY_A): fix typo.  re-applying r35242.
+
+Sat May 19 04:46:53 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* ext/openssl/extconf.rb: Use Logging::message instead of message.
+	* ext/zlib/extconf.rb: ditto.
+
+Fri May 18 18:13:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#configuration): keep space at end of
+	  OUTFLAG and COUTFLAG.  [ruby-dev:45650]
+
+Fri May 18 17:39:42 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread_pthread.c (rb_thread_create_timer_thread): Added error
+	  check when failing fcntl(). [Bug #6147] [ruby-dev:45364]
+
+Fri May 18 17:41:00 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/extmk.rb (extmake): link archives only, skip script only
+	  extension libraries.
+
+Fri May 18 17:25:33 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* cont.c: bump up fiber machine stack size when running on 64bit
+	  arch. [Bug #6344] [ruby-dev:45554]
+
+Fri May 18 15:20:56 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/generic.rb (URI::Generic.build): duplicate args before adding
+	  new items. (don't change arguments)
+
+	* lib/uri/generic.rb (URI::Generic.build): use URI::Generic::COMPONENT
+	  if this method is called from URI::Generic.
+
+	* lib/uri/generic.rb (URI::Generic.build2): escape only if the item is
+	  a String.
+
+	* lib/uri/generic.rb (URI::Generic.build2): use DEFAULT_PARSER because
+	  it doesn't have parser method. [Bug #6420]
+
+Fri May 18 15:54:07 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* ext/zlib/extconf.rb: Use an exception instead of bare puts.
+
+Fri May 18 15:53:05 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* ext/psych/extconf.rb: Use an exception instead of bare abort.
+
+Fri May 18 15:51:32 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* ext/fiddle/extconf.rb: Use an exception instead of bare abort.
+
+Fri May 18 15:49:35 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* ext/readline/extconf.rb: Use an exception instead of bare exit.
+
+Fri May 18 15:38:11 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* ext/ripper/extconf.rb: Use an exception instead of bare
+	  Logging.message.
+
+Fri May 18 15:23:06 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* ext/openssl/extconf.rb: Clarify a message when hit Apple
+	  OpenSSL issue.
+
+Fri May 18 15:14:32 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* ext/extmk.rb: Show a message when extconf.rb raised an exception.
+	* ext/openssl/extconf.rb: Use exception raising instead of message
+	  and/or abort. We want to display error message to console _and_
+	  logging into mkmf.log.
+
+Fri May 18 06:14:07 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/syslog/lib/syslog/logger.rb:  Added Syslog::Logger which was
+	  ported from the SyslogLogger gem.  [ruby-trunk - Feature #5096]
+	* NEWS:  ditto.
+	* test/syslog/test_syslog_logger.rb:  ditto.
+
+Fri May 18 01:28:21 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/parser.c (transcode_string): fix encoding index names.
+	  Thanks markizko for reporting.
+
+Thu May 17 23:03:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: fix function name to be checked, to initialize
+	  rb_thread_cond_t properly.
+
+	* thread_pthread.c (native_cond_initialize, native_cond_destroy):
+	  fix macro name.
+
+Thu May 17 12:53:07 2012  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* thread.c, thread_pthread.c: Moved pthread-specific preprocessor
+	  hacks to thread_pthread.c
+
+Thu May 17 12:18:47 2012  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* io.c: Fix a mistake on merging the patch in the previous commit.
+
+Thu May 17 11:33:07 2012  Yuki Yugui Sonoda  <yugui@google.com>
+
+	Imports Ruby's port to NativeClient (a.k.a NaCl).
+	Patch by Google Inc. [ruby-core:45073].
+
+	* configure.in (RUBY_NACL): New M4 func to configure variables for
+	  NaCl.
+	  (RUBY_NACL_CHECK_PEPPER_TYPES): New M4 func to check the old names
+	  of Pepper interface types.
+	  (BTESTRUBY): New variable to specify which ruby should be run on
+	  "make btest". NaCl can run the built binary by sel_ldr, but it need
+	  rbconfig.rb. So this variable is distinguished from $MINIRUBY.
+
+	* thread_pthread.c: Disabled some features on NaCl.
+
+	* io.c: ditto.
+
+	* process.c: ditto.
+
+	* signal.c: ditto.
+
+	* file.c: ditto.
+
+	* missing/flock.c: ditto.
+
+	* nacl/pepper_main.c: An example implementation of Pepper application
+	  that embeds Ruby.
+
+	* nacl/example.html: An example of web page that uses the Pepper
+	  application.
+
+	* nacl/nacl-config.rb: Detects variants of NaCl SDK.
+
+	* nacl/GNUmakefile.in: Makefile template for NaCl specific build
+	  process.
+
+	* nacl/package.rb: script for packaging a NaCl-Ruby embedding
+	  application.
+
+	* nacl/reate_nmf.rb: Wrapper script of create_nmf.py
+
+	* dln.c (dln_load): Added a hack to call on NaCl.
+
+	* util.c (ruby_getcwd): Path to the current directory is not available
+	  on NaCl.
+
+Thu May 17 10:54:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/tk/extconf.rb: add -l options to $libs not $LDFLAGS,
+	  to be passed to EXTLIBS in exts.mk.
+
+	* enc/encinit.c.erb: use %-lines to adjust indent in the generated file.
+
+	* lib/mkmf.rb (MakeMakefile#have_framework): combine -framework option
+	  and its argument with an equal sign not to be separated in merge_libs.
+
+	* ext/tk/extconf.rb: ditto.
+
+	* ext/extmk.rb: EXTLDFLAGS also needs to be passed.
+
+Wed May 16 15:44:22 2012  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* configure.in: Fix an unbalanced quote.
+
+Wed May 16 15:43:10 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/extmk.rb (exts.mk): use double quotes instead of single quotes
+	  for commandline because it's not recognized as quotes on Windows.
+
+Wed May 16 15:15:55 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (LD): enclose with single quotes but not double quotes
+	  not to expand command substitution.
+
+Wed May 16 14:19:51 2012  Yuki Yugui Sonoda  <yugui@google.com>
+
+	Supports static linking of extensions and encodings again.
+	Fixes --with-static-linked-ext.
+
+	Patch by Google Inc. [ruby-core:45073].
+
+	* Makefile.in (ENCOBJS, EXTOBJS): New variables to specify static
+	  linked libraries. Also reintroduces extinit.o, introduces encinit.o
+	  introduces encinit.o
+
+	* common.mk: Builds static libraries rather than shared objects if
+	  specified.
+
+	* configure.in (LD): new substitution.
+
+	* enc/depend: Supports static linked libraries
+	  (libencs, libenc, libtrans): New target.
+
+	* enc/encinit.c.erb: new template to generate the initialization of
+	  statically linked encodings.
+
+	* enc/make_encmake.rb (--module): new flag to specify whether static
+	  or dynamic.
+
+	* transcode_data.h (TRANS_INIT): New macro to get rid of the name
+	  collision of encoding initializers and transcoder initializers.
+
+	* ext/extmk.rb: Fixes the behavior on $extstatic is true.
+
+	* lib/mkmf.rb (clean-static): new target to clean up static linked
+	  libraries.
+
+	* ruby.c (process_options): New initializes statically linked
+	  encodings here.
+
+Wed May 16 14:30:43 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* io.c: fixed a merge mistake of r33878, reported by nobu via IRC.
+
+Wed May 16 06:59:41 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_strftime.c: should also be aware of flags on
+	  complex specifier.
+
+Wed May 16 05:11:29 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: fix a bug with string
+	  subclass dumping and loading.
+
+	* test/psych/test_array.rb: pertinent tests
+
+	* test/psych/test_string.rb: ditto
+
+Wed May 16 01:31:21 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: convert omap tagged maps to
+	  Psych::Omap objects rather than hashes. [Bug #6425]
+
+	* test/psych/test_omap.rb: pertinent test.
+
+Wed May 16 01:15:45 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: keep a reference to
+	  custom coders so that GC does not impact dumped yaml reference ids.
+
+Tue May 15 23:59:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit.rb (Test::Unit::Options#setup_options): add --color option.
+
+	* lib/test/unit.rb (Test::Unit::Runner#_prepare_run): defer color code
+	  initialization to regard --color option.
+
+Mon May 14 16:28:36 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (f_arglist): should reset lexical states after empty
+	  argument list with no parenthesis as well as parenthesized list,
+	  so that reserved name method definition work.  [ruby-dev:45626]
+	  [Bug #6403]
+
+Mon May 14 00:14:24 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* enumerator.c (lazy_take_func, lazy_take): multiple calls of
+	  force/to_a method to Enumerator::Lazy#take should return same
+	  results. [ruby-dev:45634] [Bug #6428]
+
+	* test/ruby/test_lazy_enumerator.rb (test_take_recycle): add test for
+	  above.
+
+Sun May 13 23:38:31 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* test/ruby/test_io.rb (test_flush_in_finalizer1): don't use IO.for_fd
+	  to close IO objects. it create IO object with already closed fd, and
+	  cause occasional Errno::EBADF in following tests. [ruby-core:45020]
+	  [Bug #6228]
+
+Sun May 13 23:32:16 2012  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* test/ruby/test_io.rb (TestIO): revert r35631. it broke the intent of
+	  test_flush_in_finalizer1.  [ruby-core:43951] [Bug #6228]
+
+Sun May 13 22:46:36 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/etc/etc.c (passwd_ensure): move endpwent() call from
+	  passwd_iterate to close /etc/passwd on exception.
+	  (group_ensure): move endgrent() call from group_iterate to close
+	  /etc/group on exception.
+
+Sun May 13 18:10:43 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_strftime.c: removed unused code and changed the style.
+
+Sun May 13 17:37:56 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_strftime.c: refactored.
+
+Sun May 13 06:40:12 2012  Luis Lavena  <luislavena@gmail.com>
+
+	* test/ruby/test_io.rb (class TestIO):  Disable GC during IO tests to
+	  avoid file descriptors being GC'ed. Suggestion by Tomoyuki Chikanaga
+	  [ruby-core:43951][Bug #6228]
+
+Sat May 12 07:00:16 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/sdbm/init.c:  Added documentation.  Patch by Justin Collins,
+	  cleanup by Zachary Scott.  [ruby-trunk - #6410]
+
+Sat May 12 06:02:03 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/fileutils.rb (cp_r):  Fixed cp_r example.  Patch by TJ Koblentz
+	  from pull request #114.  [ruby-trunk - Bug #6411]
+
+Sat May 12 05:23:06 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* thread.c (rb_threadptr_execute_interrupts_common):
+	  test_signal_requiring of test/ruby/test_signal.rb fail if the sub
+	  process is killed on waiting IO in lex_io_gets in rb_load_file in
+	  rb_load_internal in require.
+	  This is because
+	  (1) the process receive the killing signal in
+	      rb_thread_io_blocking_region in rb_read_internal in lex_io_gets.
+	  (2) set th->errinfo as INT2FIX(TAG_FATAL) at
+	      rb_threadptr_execute_interrupts_common.
+	  (3) escape rb_load_file in rb_load_internal and jump to EXEC_TAG()
+	      without set loaded as TRUE.
+	  (4) call first rb_exc_raise(GET_THREAD()->errinfo); because loaded
+	      is FALSE as above. this errinfo should be an exception object
+	      but this is INT2FIX(TAG_FATAL).
+	  Don't call first rb_exc_raise if GET_THREAD()->errinfo is Fixnum.
+
+Fri May 11 14:23:11 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (primary): begin/end block should be isolated from outside.
+	  [ruby-dev:45631][Bug #6419]
+
+Fri May 11 14:09:47 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/bigdecimal/bigdecimal.c (PUSH): to prevent VALUE from GC,
+	  must not cast it to unsigned long, which may be shorter than
+	  VALUE, and the result can be mere garbage.
+
+Fri May 11 09:51:07 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit.rb (Test::Unit::Runner#failed): no unnecessary
+	  newlines if no reports to be displayed.
+
+Thu May 10 10:55:35 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/minitest/test_minitest_mock.rb: Correct requiring path to
+	  metametameta.rb.
+
+	* test/minitest/test_minitest_unit.rb: Correct requiring path to
+	  metametameta.rb.
+
+Thu May 10 10:18:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (lex_state_name): returns name for lex_state_e, for debug
+	  use.
+
+Wed May  9 16:36:01 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#pkg_config): check if libs resulted from
+	  pkg-config works actually.
+
+Wed May  9 16:01:38 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/imap.rb (decode_utf7, encode_utf7): refactored by
+	  Nobuyoshi Nakada, to use String#encode.
+
+Wed May  9 13:26:25 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/rubygems/test_gem_remote_fetcher.rb: skip OpenSSL dependent
+	  tests if not available.
+
+Wed May  9 08:09:38 2012  Ryan Davis  <ryand-ruby@zenspider.com>
+
+	* lib/minitest/*: Imported minitest 3.0.0 (r7435)
+	* test/minitest/*: ditto
+	* test/rubygems/*: Imported fixes for buggy use of assert_match
+	  and deprecated assert_block
+	UNBUNCH YOUR PANTIES. THE TESTS DO NOT RUN CLEAN ON OSX.
+
+Wed May  9 06:28:59 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* re.c (rb_reg_equal):  Removed incorrect example for Regexp#== with
+	  "n" option.  [ruby-talk - Bug #6415]
+
+Wed May  9 06:23:33 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: reverted.
+
+Wed May  9 04:31:26 2012  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+
+	* lib/rinda/ring.rb (lookup_ring_any): fix Rinda::RingFinger.primary
+	  hungs forever. [ruby-talk:395364]
+
+Tue May  8 21:09:00 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* include/ruby/win32.h (FD_SET): change function to macro.
+	  To avoid buffer overflow when smaller FD_SETSIZE is used in ext
+	  libraries.
+
+	* win32/win32.c (rb_w32_fdset): this function is not used anymore.
+	  But we leave this for compatibility.
+
+	* win32/win32.c (rb_w32_select_with_thread): fix SEGV when smaller
+	  FD_SETSIZE is used in ext libraries. Dereference of fd_set pointer
+	  causes SEGV.
+
+	* test/-ext-/win32/test_fd_setsize.rb(TestFdSetSize): add tests for
+	  above.
+	* ext/-test-/win32/fd_setsize/depend: ditto.
+	* ext/-test-/win32/fd_setsize/extconf.rb: ditto.
+	* ext/-test-/win32/fd_setsize/fd_setsize.c: ditto.
+
+	  [ruby-core:44588] [Bug #6352]
+
+Tue May  8 20:44:46 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* io.c (io_unread): fix IO#pos with mode 'r' bug on Windows.
+	  If the end of reading buffer is CR, io_unread() needs to unread one
+	  more byte.
+	  [ruby-core:44874] [Bug #6401]
+
+	* test/ruby/test_io_m17n.rb (TestIO_M17N#test_pos_with_buffer_end_cr):
+	  add a test for above.
+
+Tue May  8 13:38:17 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* ext/date/date_core.c: improving introduction in Date/DateTime
+	  documentation. patched by Daniel Kaufman via Github.
+		https://github.com/ruby/ruby/pull/110
+
+Tue May  8 13:36:02 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (POSTLINK): default to : command to get rid of flag
+	  only command, since BSD make does not work with it.
+
+Tue May  8 13:35:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit.rb (MiniTest#run_test): remove exact trace and get rid
+	  of IndexError, which could caused by modified $@ sometimes.
+
+Tue May  8 11:21:27 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/minitest/metametameta.rb (MetaMetaMetaTestCase#assert_report):
+	  support drive letter on Windows.  yes, the original code is metameta.
+
+Tue May  8 08:54:48 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/abbrev.rb:  Fixed typo in abbrev pattern documentation.  Based on
+	  patch by Mark Rushakoff.  [ruby-trunk - #6346]
+
+Tue May  8 07:44:18 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/openssl/ossl_ssl.c (ossl_start_ssl): remove useless rb_sys_fail
+	  before ossl_raise. this cause a test failure on Linux.
+	 http://u64.rubyci.org/~chkbuild/ruby-trunk/log/20120507T190102Z.log.html.gz
+
+Tue May  8 05:35:18 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* object.c (Init_Object):  Added reference to variable.c where
+	  public_constant and private_constant documentation lives.  [#6381]
+
+Tue May  8 04:47:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit.rb (Test::Unit::Runner#output): prefer local output to
+	  get rid of unexpected side effect in test/minitest/metametameta.rb.
+
+	* lib/test/unit.rb (MiniTest#run_test): show the running test in $0.
+
+	* lib/test/unit.rb (Test::Unit::StatusLineOutput): new class to output
+	  in status line.
+
+	* test/testunit/test_hideskip.rb (TestHideSkip#test_hideskip):
+	  MiniTest#puke now reports Skipped messages only if verbose mode.
+
+	* test/testunit/test_sorting.rb (TestTestUnitSorting#test_sorting):
+	  ditto.
+
+	* lib/test/unit.rb (Test::Unit::Runner#puke): modify only result and
+	  drop useless reports, not override entirely.
+
+	* bootstraptest/runner.rb (exec_test, show_progress): show rotators
+	  and pass/fail counts.
+
+	* sample/test.rb (PROGRESS): refine output.
+
+Tue May  8 02:34:26 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/minitest/unit.rb (assert_match): refix of r35563.
+	  r35563 breaks the intention of the original change.
+	 https://github.com/seattlerb/minitest/commit/68858105b2eb11c85105ffac5f32b662c59397f3
+	* lib/minitest/unit.rb (refute_match): ditto.
+
+Mon May  7 21:19:17 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/json: Merge JSON 1.7.1.
+	 https://github.com/flori/json/commit/e5b9a9465c1159fae533bca320d950b772bcb4ac
+
+Mon May  7 22:54:22 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_ssl.c: add support for option flags
+	  OpenSSL::SSL::OP_NO_TLSv1_1
+	  OpenSSL::SSL::OP_NO_TLSv1_2
+	  to allow blocking specific TLS versions. Thanks to Justin Guyett for
+	  pointing this out to me.
+	* test/openssl/test_ssl.rb: add tests to assert correct behavior when
+	  blocking certain versions of TLS/SSL both on server and client side.
+	  Also refactored tests to reduce boilerplate code a little.
+	* test/openssl/utils.rb: rescue Errno::ECONNRESET for tests where
+	  client rejects the connection because a forbidden protocol version
+	  was used.
+
+Mon May  7 20:14:15 2012  Tanaka Akira  <akr@fsij.org>
+
+	* lib/securerandom.rb (random_bytes): call to_int method for the
+	  argument at first.
+
+Mon May  7 17:54:12 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/minitest/unit.rb (assert_match): replace matcher only if both
+	  matcher and obj are String. fix r35541. [Bug #6405]
+	  DON'T COMMIT IF YOU CAN'T RUN TEST.
+	  FIX AS SOON AS POSSIBLE YOU BREAK TESTS.
+	  patched by ayumin.
+	  https://github.com/seattlerb/minitest/pull/124
+
+	* lib/minitest/unit.rb (refute_match): ditto.
+
+Mon May  7 13:41:00 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* Makefile.in (PROGRAM), configure.in (POSTLINK): sign built program
+	  using RUBY_CODESIGN identity.
+
+Mon May  7 13:03:55 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/imap.rb (body_type_attachment): parse body type
+	  "ATTACHMENT". [ruby-core:44849] [Bug #6397]
+
+Mon May  7 10:49:36 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/bigdecimal/bigdecimal.c (Init_bigdecimal): define IDs before
+	  they are used. [ruby-core:44900] [Bug #6406]
+
+Mon May  7 10:27:56 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/digest/rmd160/rmd160.c (RMD160_Update): fix for huge data.
+
+Mon May  7 10:23:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/fileutils/fileasserts.rb: use assert_equal, assert_match, and so on.
+
+	* test/ruby/enc/test_utf16.rb, test/ruby/enc/test_utf32.rb,
+	  test/ruby/test_io_m17n.rb (assert_str_equal): ditto.
+
+	* test/rubygems/test_gem_remote_fetcher.rb
+	  (assert_data_from_{server,proxy}): ditto.
+
+	* test/test_pstore.rb (test_thread_safe): ditto.
+
+Mon May  7 10:16:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/rubygems/test_gem_installer.rb (TestGemInstaller#test_dir): fix
+	  argument order.  expected value must come first.
+
+Mon May  7 09:14:11 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_ssl.c: support TLSv1.1 & TLSv1.2. Add
+	  SSLContext#version to inspect the version that was negotiated for
+	  a given connection.
+	* ext/openssl/extconf.rb: detect TLS 1.1 & 1.2 support.
+	* test/openssl/test_ssl.rb: add tests for TLS 1.1 & 1.2 given they
+	  are supported by the native OpenSSL being used.
+
+Sun May  6 21:34:29 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* io.c (io_encoding_set): suppress warnings. [ruby-dev:45627]
+	  this tmp1 is not required after r35538.
+
+	* addr2line.c: suppress warnings.
+
+Sun May  6 18:39:39 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (iseq_compile_each): remove unused variable `size'.
+
+Sun May  6 14:50:03 2012  Tanaka Akira  <akr@fsij.org>
+
+	* lib/securerandom.rb: show actual read length in an error message.
+
+Sat May  5 06:43:10 2012  Ryan Davis  <ryand-ruby@zenspider.com>
+
+	* lib/minitest/*: Imported minitest 2.12.1 (r7323)
+	* test/minitest/*: ditto
+
+Sat May  5 01:47:33 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* test/zlib/test_zlib.rb (test_inflate): add a test for Zlib.inflate.
+	  patched by headius (Charles Nutter). [ruby-core:44859] [Bug #6398]
+
+	* test/zlib/test_zlib.rb (test_deflate): add a test for Zlib.deflate.
+
+Sat May  5 00:53:55 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* io.c (parse_mode_enc): remove warnings 'Ignoring internal encoding'.
+	  [ruby-core:44455] [Bug #6324]
+
+	* io.c (io_encoding_set): ditto.
+
+Fri May  4 07:19:02 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/rdoc/parser.rb (RDoc.binary?): fix wrong regexp.
+	  [ruby-core:44798] [Bug #6393]
+
+Fri May  4 01:33:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/rdoc/parser.rb (RDoc.alias_extension): a real file is irrelevant
+	  to aliasing.  [ruby-core:44796][Bug #6392]
+
+	* lib/rdoc/parser.rb (RDoc.zip?): non-existent file will not be a zip
+	  file.
+
+	* lib/rdoc/parser.rb (RDoc.can_parse_by_name): accept aliased
+	  extension file names.
+
+	* lib/rdoc/parser.rb (RDoc.binary?): binary read data may have
+	  incomplete multibyte sequence.  [ruby-core:44798][Bug #6393]
+
+Wed May  2 23:55:51 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit.rb (Test::Unit::RequireFiles#non_options): expand
+	  real path to get rid of loading same files via symlinks.
+
+Wed May  2 23:26:04 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* cont.c (rb_fiber_m_transfer): improve sample code in Fiber#transfer
+	  documentation. emphasize the difference between transfer and resume.
+
+Wed May  2 23:21:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_yylex): allow spaces between lambda arrow and
+	  parenthesis.  [ruby-dev:45605][Feature #6390]
+
+Wed May  2 19:06:30 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* cont.c (rb_fiber_m_transfer): Improved Fiber documentation.
+	  patched by Anuj Dutta. [ruby-core:44540][Bug #6343]
+
+Wed May  2 13:06:37 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* README, README.ja: reformatted using rdoc markup.  based on the
+	  patches by zzak (Zachary Scott) in [Feature #6388].
+
+	* README, README.ja: updated the author's mail address.
+
+Wed May  2 09:46:09 2012  Kouji Takao  <kouji@takao7.net>
+
+	* ext/readline/readline.c (Readline.special_prefixes=)
+	  (Readline.special_prefixes): new function. An original patch was
+	  created by nagachika. [Feature #5784]
+
+Tue May  1 22:18:45 2012  Kouji Takao  <kouji@takao7.net>
+
+	* ext/readline/readline.c (Readline.pre_input_hook)
+	  (Readline.insert_text, Readline.redisplay): new function. An
+	  original patch was created by nagachika. [Feature #5785]
+
+Tue May  1 15:46:48 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* common.mk: "$(Q)-..." doesn't work on nmake.
+
+Tue May  1 15:32:10 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* common.mk: replace '@' prefix to '$(Q)' to control build
+	  process outputs.
+
+Tue May  1 14:17:59 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/openssl/deprecation.rb (OpenSSL.check_func): check if header is
+	  available for macro compatibility.
+
+Tue May  1 10:53:54 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_settracefunc.rb: ignore traces from another threads
+	  because Kernel.set_trace_func affects other threads.
+
+Tue May  1 06:04:14 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/digest/sha2/sha2.c (REVERSE32): explicitly cast since unsigned
+	  long may be larger than sha2_word32.
+
+	* ext/digest/sha2/sha2.c (SHA{256,512,384}_{Final,End}): should clear
+	  whole content, not pointer size.
+
+	* ext/digest/*/extconf.rb: use pkg_config to use same library with
+	  openssl.  [ruby-core:44755][Bug #6379]
+
+	* ext/openssl/deprecation.rb: extract check for broken Apple OpenSSL.
+
+Tue May  1 05:02:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (optflags): disable unsafe optimizations.
+	  [ruby-core:44679][Bug #6370]
+
+Mon Apr 30 23:36:49 2012  Tanaka Akira  <akr@fsij.org>
+
+	* lib/fileutils.rb (copy_metadata): use File.lchown and File.lchmod to
+	  update meta data of symlinks.
+
+Mon Apr 30 23:05:53 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* test/ruby/test_continuation.rb (tracing_with_set_trace_func): don't
+	  call Continuation from other threads. [ruby-dev:45596] [Bug #6382]
+
+Mon Apr 30 20:10:04 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/zlib/extconf.rb: detect z_crc_t type which will be defined
+	  since zlib-1.2.7.
+
+	* ext/zlib/zlib.c (rb_zlib_crc_table): use z_crc_t if available.
+
+Mon Apr 30 09:02:15 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* ext/openssl/lib/openssl/ssl.rb: add hostname to "hostname does not
+	  match server cert." error. patched by Wes Morgan via Github.
+	  https://github.com/ruby/ruby/pull/122
+
+Mon Apr 30 04:43:53 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/json/yaml_events.rb: implicit styles should not
+	  be changeable for JSON events.
+
+Sun Apr 29 06:12:02 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (assoc, parser_yylex): add syntax to splat keyword hash.
+	  [ruby-core:44591][Feature #6353]
+
+	* compile.c (compile_array_): generate keyword splat insns.
+
+	* vm.c (m_core_hash_merge_kwd): merge keyword hash into intermediate
+	  hash.  leftward argument is prior currently.
+
+Fri Apr 27 12:34:23 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/dl/cfunc.c (rb_dlcfunc_call): should convert a Bignum value to
+	  unsigned long long on Win64.
+	  [ruby-core:44636][Bug #6364] reported by raylinn@gmail.com (ray linn)
+
+Fri Apr 27 10:58:17 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/readline/test_readline.rb (setup): avoid affected by user's
+	  inputrc file.  [ruby-dev:45584][Bug #6357]
+
+Fri Apr 27 01:45:05 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* thread.c (rb_threadptr_execute_interrupts_common):
+	  handle timer_interrupt only on the first loop for the case to avoid
+	  the infinite loop like following case:
+	  * there is 2 Ruby threads (3 pthreads)
+	  (1) main thread is waiting at gvl_yield:112 (native_cond_wait)
+	  (2) sub thread works
+	  (3) sub thread waits at gvl_yield:133 (native_mutex_unlock)
+	  (4) main thread works
+	  (5) main thread goes to gvl_acquire_common
+	  (6) main thread call rb_wakeup_timer_thread
+	  (7) timer thread set timer interrupt to the main thread
+	  (8) main thread works
+	  (9) main thread waits at gvl_acquire_common:64 (native_cond_wait)
+	  (10) sub tread works
+	  (11) set sub thread as the current thread
+	  (12) run Ruby thread
+	  (13) ...100ms
+	  (14) sub thread goes to rb_threadptr_execute_interrupts_common
+	  (15) sub thread call rb_thread_schedule_limits
+	  (16) sub thread call gvl_release_common
+	  (17) sub threads waits at gvl_yield:121 (native_cond_wait)
+	  (18) main threads works
+	  (19) main thread back to gvl_yield
+	  (20) set main thread as the current thread
+	  (21) main thread call gvl_yield
+	  (22) main thread waits at gvl_yield:112 (native_cond_wait)
+	  As described above, the main thread can't escape from
+	  rb_threadptr_execute_interrupts_common.
+	  See extended memo: http://bugs.ruby-lang.org/projects/ruby-trunk/wiki/R35480_ExtendedMemo
+
+Fri Apr 27 07:15:07 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/socket.c (sock_s_pack_sockaddr_un): support the longest
+	  path in sockaddr_un, really.
+	  reported by nagachika.
+	 http://d.hatena.ne.jp/nagachika/20120426/ruby_trunk_changes_35474_35476
+
+Thu Apr 26 12:28:06 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/raddrinfo.c (init_unix_addrinfo): support the longest
+	  path in sockaddr_un.
+	  (inspect_sockaddr): ditto.
+	  (addrinfo_mdump): ditto.
+	  (addrinfo_mload): ditto.
+	  (rsock_unixpath_str): new function.
+	  (rsock_unixpath): removed.
+	  (rsock_unixaddr): use rsock_unixpath_str.
+
+	* ext/socket/socket.c (sock_s_pack_sockaddr_un): support the longest
+	  path in sockaddr_un.
+	  (sock_s_unpack_sockaddr_un): ditto.
+	  (sock_s_gethostbyaddr): unused variable removed.
+
+	* ext/socket/unixsocket.c (rsock_init_unixsock): support the longest
+	  path in sockaddr_un.
+
+	* ext/socket/rubysocket.h (rsock_unixpath_str): declared.
+	  (rsock_unixpath): removed.
+
+	* test/socket/test_unix.rb: comment out test_nul because abstract unix
+	  sockets may contain NULs.
+
+Thu Apr 26 01:32:33 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* test/optparse/test_summary.rb (test_summary_containing_space): add
+	  test for r35467. OptionParser#to_a shouldn't split banner by spaces.
+
+Wed Apr 25 23:02:46 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/raddrinfo.c (init_unix_addrinfo): refine error message
+	  format.
+	  (addrinfo_mload): show more information on "too long AF_UNIX path"
+	  error.
+	  (addrinfo_unix_path): ditto for "too short AF_UNIX address" and
+	  "too long AF_UNIX address" error.
+
+Wed Apr 25 05:46:12 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/optparse.rb (OptionParser#to_a): split for each lines.
+	  [ruby-dev:45568][Bug #6348]
+
+Tue Apr 24 21:57:53 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/raddrinfo.c (init_unix_addrinfo): show actual path length
+	  when it is too long for Unix socket.
+
+	* ext/socket/unixsocket.c (rsock_init_unixsock): ditto.
+
+	* ext/socket/socket.c (sock_s_pack_sockaddr_un): ditto.
+
+Tue Apr 24 21:43:58 2012  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* lib/net/smtp.rb (check_continue): raise an error with an explanatory
+	  message.  [ruby-core:35854] [Feature #4598]
+
+Tue Apr 24 21:11:31 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/optparse.rb (OptionParser#to_a): should split by end-of-line,
+	  and MUST TEST IT, MUST RUN THE TEST, MUST VERIFY BEFORE BACKPORT.
+	  [ruby-dev:45568][Bug #6348]
+
+Tue Apr 24 19:59:31 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* enc/euc_jp.c: added EUC-JP-2004 and its alias EUC-JISX0213.
+	  [ruby-dev:45571] [Feature #6349]
+	  Requested by Kyouhei Yanagita <yanagi@shakenbu.org>.
+
+	* enc/trans/japanese_euc.trans: ditto.
+
+	* enc/trans/JIS/JISX0213-[12]%UCS@{BMP,SIP}.src: JIS X 0213:2004 ->
+	  Unicode mapping table from NetBSD.
+
+	* enc/trans/JIS/UCS@{BMP,SIP}%JISX0213-[12].src: Unicode -> JIS X
+	  0213:2004 mapping table from NetBSD.
+
+	* tool/transcode-tblgen.rb: added SIP support.
+
+	* test/ruby/test_transcode.rb: tests of above changes.
+
+Tue Apr 24 18:12:13 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c: fix to output warning when the same literals
+	  are available as a condition of same case clause.
+	  And remove information ('#n') because we can find duplicated
+	  condition with explicit line numbers.
+	  [ruby-core:38343] [Ruby 1.9 - Bug #5068]
+
+	* test/ruby/test_syntax.rb: add a test for above.
+
+Tue Apr 24 17:03:51 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (waitpid): need to check the return value of
+	  FindChildSlotByHandle() before passing poll_child_status().
+	  this fixed a SEGV in test-all.  reported by ko1 via IRC.
+
+Tue Apr 24 16:04:39 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_yylex): EXPR_BEG by keywords is a start point of
+	  commands.  [ruby-dev:45563][Bug #6347]
+
+	* parse.y (superclass): ditto for superclass.
+
+	* parse.y (parser_parse_string, parser_here_document): ditto for
+	  string interpolation.
+
+	* parse.y (parser_yylex): ditto for singleton class.
+
+Tue Apr 24 15:51:41 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/optparse.rb (OptionParser#to_a): should split by end-of-line
+	  [ruby-dev:45568][Bug #6348]
+
+	* lib/optparse.rb (OptionParser#to_a): String#to_a is no longer
+	  defined.  [ruby-dev:45568][Bug #6348]
+
+Tue Apr 24 12:46:50 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* hash.c, object.c, struct.c, lib/ostruct.rb: add to_h methods.
+	  [Feature #6276]
+
+Tue Apr 24 10:54:34 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/drb/drbtest.rb ({DRbCore,DRbAry}#teardown): cannot pass SIGTERM
+	  to another process on Windows, so use SIGINT instead.
+
+Tue Apr 24 00:25:39 2012  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* thread.c (rb_check_deadlock): refine an error message of deadlock
+	  detection.  [ruby-core:44336] [Bug #6288]
+
+Tue Apr 24 00:14:42 2012  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* parse.y (primary): remove wrong "fixpos" that caused incorrect
+	  source_location of blocks.  [ruby-core:42232] [Bug #5930]
+
+	* test/ruby/test_proc.rb: add a test for above.
+
+Mon Apr 23 22:56:08 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/iconv: deprecated.  [Feature #6322]
+
+Mon Apr 23 22:07:00 2012  Tanaka Akira  <akr@fsij.org>
+
+	* test/socket/test_unix.rb (bound_unix_socket): make temporary
+	  filename shorter for less possibility of Unix socket path over
+	  107 bytes when TMPDIR has long path.
+
+Mon Apr 23 20:35:49 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (szInternalCmds, internal_match, internal_cmd_match):
+	  get rid of a segmentation fault with GCC 4.7.0.
+	  reported by raylinn@gmail.com (ray linn) at [ruby-core:44505]
+	  [Bug #6333], and patched by mame.
+
+	* test/ruby/test_system.rb (TestSystem#test_system): test for it.
+
+Mon Apr 23 20:11:02 2012  Tanaka Akira  <akr@fsij.org>
+
+	* lib/drb/ssl.rb: generate 1024 bits RSA key instead of 512 bits.
+	  OpenSSL 1.0.1 rejects 512 bits RSA key for TLS1.2 with SHA512.
+	 http://rt.openssl.org/Ticket/Display.html?id=2769&user=guest&pass=guest
+	  reported by Bohuslav Kabrda.
+	  [ruby-core:43844] [ruby-trunk - Bug #6221]
+
+Mon Apr 23 19:54:33 2012  Tanaka Akira  <akr@fsij.org>
+
+	* test/drb/drbtest.rb: rescue Errno::ESRCH for Process.kill.
+	  reported by NARUSE, Yui.  [ruby-dev:45551]
+
+Mon Apr 23 14:16:45 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* .gdbinit (rb_ps_vm): follow st_table's packing change.
+
+Mon Apr 23 10:43:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: disable rubygems not to load rbconfig.rb before
+	  fake.rb.  [ruby-core:44492][Bug #6329]
+
+Sun Apr 22 20:26:06 2012  Tanaka Akira  <akr@fsij.org>
+
+	* lib/drb/extservm.rb (DRb::ExtServManager): don't use /bin/sh to
+	  invoke service subprocess.  mark detach threads for clean up.
+
+	* test/drb/drbtest.rb: clean up the service subprocess in teardown.
+
+	* test/drb/test_drb.rb: set @service_name for teardown.
+
+	* test/drb/test_drbunix.rb: ditto.
+
+	* test/drb/test_drbssl.rb: ditto.
+
+	[ruby-dev:45547]
+
+Sun Apr 22 07:51:29 2012  Tanaka Akira  <akr@fsij.org>
+
+	* lib/drb/ssl.rb: close accepted TCP socket if SSL accept is failed.
+	  [ruby-dev:45541]
+
+Sat Apr 21 14:36:49 2012  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+
+	* test/rinda/test_rinda.rb: fix sticks on some tests problem
+	  [Bug #6272]
+
+Fri Apr 20 12:24:04 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/ssl_certs/AddTrustExternalCARoot.pem:  Removed to avoid
+	  conflict with ca-bundle.pem
+	* lib/rubygems/ssl_certs/VerisignClass3PublicPrimaryCertificationAuthority-G2.pem:
+	  ditto.
+	* lib/rubygems/ssl_certs/Entrust_net-Secure-Server-Certification-Authority.pem:
+	  ditto.
+
+Fri Apr 20 08:07:06 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems 1.8.23 which contains security
+	  fixes:
+
+	  RubyGems now disallows redirection from HTTPS to HTTP.
+
+	  RubyGems now verifies SSL connections.
+
+	  See https://github.com/rubygems/rubygems/blob/1.8/History.txt for
+	  changes since 1.8.22.
+	* test/rubygems:  ditto.
+
+Thu Apr 19 16:33:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* strftime.c (rb_strftime_with_timespec): fix carry-up bug and
+	  overwrite '+' with '-' if negative offset less than a hour.
+	  [ruby-core:44447][Bug #6323]
+
+Thu Apr 19 09:39:57 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/-test-/win32/dln/extconf.rb: need import library for ordinal
+	  entry even on mingw.  [ruby-core:44441][Bug #6320]
+
+Thu Apr 19 09:35:15 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* random.c (random_init):  Clarify that the default seed is
+	  Random.new_seed, not zero.  Based on patch by Roger Pack.
+	  [ruby-trunk - Bug #6313]
+	* random.c (rb_f_srand):  ditto.
+
+Thu Apr 19 08:59:02 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/curses/curses.c (window_nodelay):  Fixed call-seq of nodelay to
+	  include the '='.
+
+	  Improved description window.nodelay=.
+
+Thu Apr 19 08:47:54 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* io.c (io_readpartial):  Document the output buffer parameter is
+	  overwritten with the read contents even when non-empty.
+	  Patch by yu nobuoka.  [ruby-trunk - Bug #6285]
+	* io.c (io_read_nonblock):  ditto.
+	* io.c (io_read):  ditto.
+	* io.c (rb_io_sysread):  ditto.
+	* io.c (argf_read):  ditto.
+	* io.c (argf_readpartial):  ditto.
+	* ext/stringio/stringio.c (strio_read):  ditto.
+	* test/ruby/test_argf.rb (class TestArgf):  Add test for existing
+	  behavior of read outbuf.
+	* test/ruby/test_io.rb (class TestIO):  ditto.
+	* test/stringio/test_stringio.rb (class TestStringIO):  ditto.
+
+Wed Apr 18 22:58:55 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (DOT, DOXYGEN): use AC_CHECK_PROGS instead of
+	  AC_CHECK_PROG which needs the third argument.  [ruby-core:44433]
+	  [Bug #6316]
+
+	* configure.in (PKG_CONFIG): fix condition to skip older version
+	  of pkg-config.  continue in backticks does not affect outside.
+
+Wed Apr 18 13:59:40 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/file.c (INVALID_FILE_ATTRIBUTES): define for old SDK.
+
+Wed Apr 18 10:22:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* strftime.c (rb_strftime_with_timespec): add an interim digit for
+	  the timezone offset which is less than an hour.
+
+Wed Apr 18 09:58:29 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/version.rb:  Fixed init_with warning by calling into
+	  yaml_initialize (for syck) from psych's init_with
+
+Wed Apr 18 09:03:43 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems 1.8.22 plus r33517 and r35337 which
+	  were ported to the rubygems git repository.
+
+	  See https://github.com/rubygems/rubygems/blob/1.8/History.txt for
+	  changes since 1.8.11.
+
+	* test/rubygems:  ditto.
+
+Tue Apr 17 22:18:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* strftime.c (rb_strftime_with_timespec): fix padding of time zone
+	  offset.  [ruby-dev:43287][Bug #4458]
+
+Tue Apr 17 13:11:14 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dln.c (rb_w32_check_imported): skip ordinal entries.  based on a
+	  patch by phasis68 (Heesob Park) at [ruby-core:44381].
+	  [ruby-core:44371][Bug #6303]
+
+Mon Apr 16 18:22:14 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* spec/default.mspec: expand relative path for ruby_exe which uses
+	  them with Dir.chdir; it breaks relative paths, for example
+	  core/kernel/exec_spec.rb.
+
+Mon Apr 16 16:22:40 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (gmtime_r, localtime_r): POSIX compliant reentrant
+	  versions.
+
+	* configure.in (RUBY_MSVCRT_VERSION): define on mingw too.
+
+	* win32/Makefile.sub (config.h): prefix RT_VER with RUBY and make
+	  more descriptive to get rid of potential conflict.
+
+Mon Apr 16 15:19:39 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (NO_RUBY_VENDOR_LIB): fix missing comma.
+
+Mon Apr 16 12:17:12 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb (hermitian?): Bug fix, patch by George Koehler
+	  [Bug #6290] [rubyspec:4b9573d7613]
+
+Mon Apr 16 09:42:50 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/rubygems/remote_fetcher.rb (Gem::RemoteFetcher#download): should
+	  use File.identical? to check the identity of the files.
+	  this fixed an error of a test on Windows.
+
+Sat Apr 14 12:55:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (UNREACHABLE): gcc 4.4 eliminates unreachable code
+	  if -O3 is given.
+
+	* win32/win32.c (child_result): dropped colon.
+
+Sat Apr 14 10:45:18 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/webrick/server.rb (WEBrick::GenericServer#start):
+	  partially revert r35315.
+
+	* test/webrick/test_server.rb (test_start_exception):
+	  received signal is delivered to the main thread, so it is needed to
+	  emulate it. patched by Eric Hodel. [ruby-core:44348] [Feature #6236]
+
+Sat Apr 14 09:35:45 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* variable.c (trace_ev):  Removed "not reached" comment as this line is
+	  reached.
+	* variable.c (rb_obj_remove_instance_variable):  Replaced "not reached"
+	  comment with the UNREACHABLE macro.
+	* variable.c (rb_mod_const_missing):  ditto.
+	* variable.c (rb_mod_remove_cvar):  ditto.
+	* enum.c (first_i):  ditto.
+	* string.c (rb_str_aref):  ditto.
+	* string.c (str_byte_aref):  ditto.
+	* string.c (rb_to_id):  ditto.
+	* io.c (rb_io_fmode_modestr):  ditto.
+	* io.c (rb_io_oflags_modestr):  ditto.
+	* pack.c (num2i32):  ditto.
+	* vm_eval.c (rb_method_missing):  ditto.
+	* vm_eval.c (rb_f_throw):  ditto.
+	* dir.c (dir_read):  ditto.
+	* win32/win32.c (child_result):  ditto.
+	* struct.c (rb_struct_getmember):  ditto.
+	* struct.c (rb_struct_set):  ditto.
+	* struct.c (rb_struct_aref_id):  ditto.
+	* eval.c (rb_f_raise):  ditto.
+	* process.c (rb_f_exit_bang):  ditto.
+	* process.c (rb_f_exit):  ditto.
+	* process.c (rb_f_abort):  ditto.
+	* ext/-test-/iter/break.c (iter_break_value):  ditto.
+	* ext/pty/pty.c (pty_check):  ditto.
+	* ext/openssl/ossl_pkey.c (ossl_pkey_new):  ditto.
+	* ext/readline/readline.c (rb_remove_history):  ditto.
+	* ext/stringio/stringio.c (strio_unimpl):  ditto.
+	* numeric.c (num_sadded):  ditto.
+	* numeric.c (num_init_copy):  ditto.
+	* numeric.c (rb_num2ll):  ditto.
+	* numeric.c (rb_num2ull):  ditto.
+	* vm_insnhelper.c (call_cfunc):  ditto.
+	* ruby.c (opt_W_getter):  ditto.
+	* bignum.c (rb_big_coerce):  ditto.
+	* file.c (rb_f_test):  ditto.
+
+Sat Apr 14 08:38:20 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* encoding.c (rb_enc_codepoint_len):  Use UNREACHABLE to avoid "control
+	  reaches end of non-void function" warnings.  [ruby-trunk - Bug #6066]
+	* re.c (name_to_backref_number):  ditto.
+	* object.c (rb_Float):  ditto.
+	* io.c (io_readpartial):  ditto.
+	* io.c (io_read_nonblock):  ditto.
+	* pack.c (rb_uv_to_utf8):  ditto.
+	* proc.c (rb_method_entry_arity):  ditto.
+	* vm_method.c (rb_f_notimplement):  ditto.
+	* struct.c (rb_struct_aset_id):  ditto.
+	* class.c (rb_scan_args):  ditto.
+	* process.c (rlimit_resource_type):  ditto.
+	* process.c (rlimit_resource_value):  ditto.
+	* process.c (p_uid_switch):  ditto.
+	* process.c (p_gid_switch):  ditto.
+	* ext/digest/digest.c (rb_digest_instance_update):  ditto.
+	* ext/digest/digest.c (rb_digest_instance_finish):  ditto.
+	* ext/digest/digest.c (rb_digest_instance_reset):  ditto.
+	* ext/digest/digest.c (rb_digest_instance_block_length):  ditto.
+	* ext/bigdecimal/bigdecimal.c (BigDecimalCmp):  ditto.
+	* ext/dl/handle.c (rb_dlhandle_close):  ditto.
+	* ext/tk/tcltklib.c (pending_exception_check0):  ditto.
+	* ext/tk/tcltklib.c (pending_exception_check1):  ditto.
+	* ext/tk/tcltklib.c (ip_cancel_eval_core):  ditto.
+	* ext/tk/tcltklib.c (lib_get_reltype_name):  ditto.
+	* ext/tk/tcltklib.c (create_dummy_encoding_for_tk_core):  ditto.
+	* ext/tk/tkutil/tkutil.c (tk_hash_kv):  ditto.
+	* ext/openssl/ossl_ssl.c (ossl_ssl_session_reused):  ditto.
+	* ext/openssl/ossl_pkey_ec.c (ossl_ec_key_dsa_verify_asn1):  ditto.
+	* ext/openssl/ossl_pkey_ec.c (ossl_ec_point_is_at_infinit):  ditto.
+	* ext/openssl/ossl_pkey_ec.c (ossl_ec_point_is_on_curve):  ditto.
+	* ext/fiddle/conversions.c (generic_to_value):  ditto.
+	* ext/socket/raddrinfo.c (rsock_io_socket_addrinfo):  ditto.
+	* ext/socket/socket.c (sock_s_getnameinfo):  ditto.
+	* ext/ripper/eventids2.c (ripper_token2eventid):  ditto.
+	* cont.c (return_fiber):  ditto.
+	* dmydln.c (dln_load):  ditto.
+	* vm_insnhelper.c (vm_search_normal_superclass):  ditto.
+	* bignum.c (big_fdiv):  ditto.
+	* marshal.c (r_symlink):  ditto.
+	* marshal.c (r_symbol):  ditto.
+
+Fri Apr 13 17:12:09 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* hash.c (inspect_i): keep string's coderange.
+
+Fri Apr 13 15:26:51 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (rb_hash_aset, rb_hash_update, rb_hash_update_by): use
+	  st_update() to reduce evaluation of hash values.
+
+Fri Apr 13 15:17:36 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/webrick/server.rb (WEBrick::GenericServer#stop): fix r35303;
+	  this method is to deny new connections, not shutdown yet.
+
+	* lib/webrick/server.rb (WEBrick::GenericServer#start):
+	  re-raise exception only when the exception is Interrupt (^C).
+
+Thu Apr 12 19:51:45 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: added some notes.
+
+Wed Apr 11 17:16:49 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (compile_array, compile_array_):
+	  Divide big array (or hash) literals into several blocks and
+	  concatenate them.  There was a problem that a big array (hash)
+	  literal causes SystemStackError exception (stack overflow)
+	  because VM push all contents of the literal onto VM stack to
+	  make an array (or hash).  To solve this issue, we make several
+	  arrays (hashes) and concatenate them to make a big array (hash)
+	  object.  [ruby-dev:37701] [Bug #982]
+
+	* compile.c (iseq_compile_each, setup_args): use modified
+	  compile_array.
+
+	* vm.c (m_core_hash_from_ary, m_core_hash_merge_ary,
+	  m_core_hash_merge_ptr): added for above change.
+
+	* id.c (Init_id), parse.y: add core method ids.
+
+	* bootstraptest/test_literal.rb: add simple tests.
+
+	* bootstraptest/test_eval.rb: remove rescue clause to catch
+	  SystemStackError exception.
+
+	* test/ruby/test_literal.rb: add tests to check no stack overflow.
+
+Thu Apr 12 07:10:37 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/uri/generic.rb (module URI):  URI now downcases the scheme to
+	  follow RFC 2396 section 3.1.  [ruby-trunk - Feature #4551]
+	* test/uri/test_generic.rb (class URI):  Test for above
+
+Thu Apr 12 06:15:44 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/protocol.rb (module Net):  Added ReadTimeout to match
+	  OpenTimeout.  ReadTimeout is now raised by rbuf_fill instead of
+	  Timeout::Error to help users distinguish what type of timeout
+	  occurred.  [ruby-trunk - Feature #6088]
+	* lib/net/pop.rb (module Net):  Updated documentation for ReadTimeout
+	  and OpenTimeout.
+	* lib/net/http.rb (module Net):  ditto
+	* lib/net/smtp.rb (module Net):  ditto
+	* lib/net/telnet.rb (module Net):  Net::ReadTimeout is now raised in
+	  waitfor to match Net::Protocol.
+	* test/net/http/test_http.rb:  Updated Timeout::Error expectation to
+	  Net::ReadTimeout.
+	* test/net/ftp/test_ftp.rb:  ditto
+
+Thu Apr 12 05:27:01 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/webrick/server.rb (module WEBrick::GenericServer):  A server
+	  will now continue only when a StandardError subclass is raised.  For
+	  other exception types the error will be logged at the fatal level and
+	  the server will safely stop.  Based on a patch by Alex Young.
+	  [ruby-trunk - Feature #6236]
+	* test/webrick/test_server.rb:  Test for new exception handling
+	  behavior.  Join the server thread instead of busy-waiting for it to
+	  shut down to remove race conditions.
+
+Thu Apr 12 03:50:44 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/test/unit.rb (Test::Unit:Runner::Worker#_run_suites):
+	  call GC.start before running the test suites.
+
+Wed Apr 11 22:31:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (rb_check_id_cstr): new function to check if ID is
+	  registered with NUL-terminated C string.
+
+	* sprintf.c (rb_str_format): avoid inadvertent symbol creation.
+
+Wed Apr 11 20:28:36 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* io.c (rb_io_eof): use eof() instead of io_fillbuf(). It's because
+	  io_unread() doesn't work properly when reading CRLF with read(length)
+	  and mode 'r'.
+	  [ruby-core:44189][Bug #6271]
+
+	* test/ruby/test_io_m17n.rb (TestIO_M17N#test_read_crlf_and_eof):
+	  test for above.
+
+Wed Apr 11 07:38:33 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/digest/sha2/lib/sha2.rb (Digest#block_length):  Fixed method name
+	  in documentation examples.  Patch by naleski via
+	  https://github.com/ruby/ruby/pull/115
+
+Wed Apr 11 07:33:13 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* pack.c (pack_pack):  Warn when an invalid character is found in the
+	  format string when $VERBOSE is true.  [ruby-trunk - Feature #5219]
+	* pack.c (pack_unpack):  ditto
+	* test/ruby/test_pack.rb (class TestPack):  Test for warnings on
+	  invalid format characters.
+
+Wed Apr 11 06:11:10 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* string.c (rb_str_tr):  Documented use of \ to escape characters.
+	  [ruby-trunk - Bug #6161]
+	* string.c (rb_str_count):  ditto
+
+Wed Apr 11 05:14:51 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/abbrev.rb:  Clarified that Abbrev.abbrev returns a Hash instead
+	  of an Array.  Patch by Andrei Bocan.  [ruby-trunk - Bug #6107]
+
+Wed Apr 11 03:02:24 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* ext/ripper/lib/ripper/sexp.rb: fix spelling. patched by
+	  Jonathan Hinkle via https://github.com/ruby/ruby/pull/116
+
+Tue Apr 10 19:07:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (rb_enc_raise): new function to raise an exception with
+	  the message in the given encoding.  patched by now (Nikolai
+	  Weibull) at [ruby-core:41160].  [Feature #5650]
+
+Tue Apr 10 18:19:32 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http.rb (Net::HTTP#send_request_with_body_stream):
+	  use IO.copy_stream for requests using body_stream.
+	  patched by Eric Wong. [ruby-core:40898] [Feature #5605]
+
+Tue Apr 10 16:53:21 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread_pthread.c: add prototype declarations for older Mac OS X.
+	  [ruby-core:43376][Bug #6170]
+
+Tue Apr 10 15:35:21 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (iseq_set_sequence): show a hint if there are duplicated
+	  "when" clauses.  [ruby-core:41502] [ruby-trunk - Feature #5716]
+
+Tue Apr 10 09:57:00 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* string.c (rb_str_split_m):  Documented behavior of split on the empty
+	  string.  [ruby-trunk - Feature #3575]
+
+Tue Apr 10 09:48:31 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/zlib/zlib.c (rb_deflate_s_deflate):  Fixed ruby example replacing
+	  NO_FLUSH with FINISH.  [ruby-trunk - Bug #6273]
+
+Mon Apr  9 23:10:26 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (isUNCRoot, winnt_stat): support long UNC.
+	  [ruby-core:30623][Feature #3399]
+
+Mon Apr  9 15:16:01 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (string_content, parser_yylex): count brace nesting to
+	  dispatch embexpr_end.  [ruby-core:43775][Bug #6211]
+
+Mon Apr  9 13:06:58 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* hash.c (rb_hash_set_default_proc): Accept nil, patch by Run Paint
+	  [Feature #4234]
+
+	* test/ruby/test_hash.rb: test for above.
+
+Mon Apr  9 08:01:15 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_strftime.c: gets the value with range() consistently.
+	* ext/date/date_strftime.c (range): now just replaces the given item.
+
+Mon Apr  9 06:58:01 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* complex.c (nucomp_expt): [ruby-core:44170].
+
+Mon Apr  9 02:52:03 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* complex.c (nucomp_expt): the result of f_complex_new2 may be a fixnum
+	  with mathn. [ruby-core:44170] [Bug #6267]
+
+Sun Apr  8 22:46:01 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/json/generator/generator.c (generate_json_bignum):
+	  add RB_GC_GUARD.
+	 http://fb.rubyci.org/~chkbuild/ruby-trunk/log/20120407T210301Z.diff.html.gz
+
+Sun Apr  8 07:26:40 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/webrick/utils.rb (WEBrick::Utils::TimeoutHandler): get keys
+	  and fetch values from it to prevent @timeout_info's error
+	  "can't add a new key into hash during iteration".
+
+Sun Apr  8 06:51:57 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* io.c (io_unread): cast as long the value for extra_max.
+	  [ruby-core:44137] [Bug #6257]
+
+Sun Apr  8 06:46:48 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/webrick/httpresponse.rb (WEBrick::HTTPResponse#send_body_io):
+	  use readpartial to get data even if the response is streaming data and
+	  each data is smaller than @buffer_size.
+	  patched by yu nobuoka. [ruby-dev:45471] [Bug #6230]
+
+Sat Apr  7 22:35:36 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* include/ruby/win32.h (rb_w32_aspawn_flags): add the declaration of
+	  new function.
+
+	* process.c (enum): add EXEC_OPTION_PGROUP and move the position
+	  above for the usage in proc_spawn_n().
+
+	* process.c (proc_spawn_n): add an argument to pass new option
+	  `new_pgroup`. The option specifies CREATE_NEW_PROCESS_GROUP flag to
+	  CreateProcessW(). This flag is necessary for the usage of
+	  Process.kill on the subprocess on Windows.
+
+	* process.c (rb_exec_arg_addopt): ditto.
+
+	* process.c (rb_spawn_process): ditto.
+
+	* process.c (documentation for rb_f_spawn): add documentation for new
+	  option `new_pgroup` of spawn.
+
+	* test/ruby/test_process.rb (TestProcess#test_execopts_new_pgroup):
+	  add tests for option `new_pgroup`.
+
+	* test/ruby/test_thread.rb
+	  (TestThreadGroup#test_thread_timer_and_interrupt):
+	  add option `new_pgroup: true` to spawn on Windows. It's needed for
+	  Process.kill on a subprocess.
+
+	* win32/win32.c (CreateChild): add an argument to pass
+	  dwCreationFlags of CreateProcessW().
+
+	* win32/win32.c (rb_w32_spawn): ditto.
+
+	* win32/win32.c (rb_w32_aspawn_flags): add new function to pass
+	  dwCreationFlags.
+
+	* win32/win32.c (rb_w32_aspawn): refactor to move the content to
+	  rb_w32_aspawn_flags().
+	  [ruby-core:43245][Bug #6131]
+
+Sat Apr  7 22:32:00 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/ruby/test_thread.rb
+	  (TestThreadGroup#test_thread_timer_and_interrupt): skip on Windows.
+	  Process.kill cannot kill a subprocess if CREATE_NEW_PROCESS_GROUP
+	  flag is not specified in a call to CreateProcessW().
+
+	* win32/win32.c (CreateChild): revert the usage of
+	  CREATE_NEW_PROCESS_GROUP flag for compatibility.
+	  [ruby-core:43245][Bug #6131]
+
+Sat Apr  7 10:28:40 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb: bumping up psych version to match release.
+	* ext/psych/psych.gemspec: ditto
+
+Sat Apr  7 02:07:00 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/parser.c: fall back to any encoding if the external
+	  encoding is wrong.  [ruby-core:44163]
+	* test/psych/test_encoding.rb: fix test
+
+Fri Apr  6 16:24:24 2012  Martin Duerst  <duerst@it.aoyama.ac.jp>
+
+	* struct.c (documentation for rb_struct_members_m):
+	  fix 'array of strings' to 'array of symbols'
+	  [ruby-core:44152][Bug #6264]
+
+Fri Apr  6 14:27:04 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* Makefile.in ($(LIBRUBY_A)): fix typo.
+
+Thu Apr  5 13:26:15 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* missing/alloca.c (xmalloc, xfree): use ruby version, not
+	  depending on RUBY_LIB_PREFIX.  [ruby-dev:45492][Bug #6255]
+
+Wed Apr  4 13:06:39 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/ftp/ftp.rb (Net::FTP#close): restore original read_timeout.
+
+Wed Apr  4 10:33:31 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/ftp/ftp.rb (Net::FTP#close): ignore exceptions from shutdown and
+	  read on closing.
+
+Wed Apr  4 01:48:35 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/ftp/ftp.rb (Net::FTP#close): close socket more gracefully.
+
+	* lib/ftp/ftp.rb (Net::BufferedSocket#shutdown): added.
+
+	* test/net/ftp/test_ftp.rb (FTPTest#create_ftp_server): wait socket
+	  with shutdown and read.
+
+Tue Apr  3 19:00:52 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/net/ftp/test_ftp.rb (FTPTest#create_ftp_server): should wait
+	  a little before closing socket because if the client call
+	  Net::FTP#getmultiline the socket is suddenly closed by the server in
+	  the getline loop.
+
+Tue Apr  3 18:33:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (setreuid, setregid): suppress warnings.
+	  [ruby-core:43374][Bug #6169]
+
+Tue Apr  3 10:18:27 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enumerator.c (inspect_enumerator): suppress uninitialized
+	  instance variable warnings.  [ruby-dev:45449][Bug #6214]
+	  patched by no6v (Nobuhiro IMAI).
+
+Mon Apr  2 13:25:08 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/optparse/ac.rb: autoconf-like options.
+
+Mon Apr  2 10:34:00 2012  eregon  <eregontp@gmail.com>
+
+	* string.c (rb_str_start_with, rb_str_end_with): raise an error if
+	  an argument is not convertible to a String.
+	  [ruby-core:40623][Bug #5536]
+
+Mon Apr  2 03:35:25 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/webrick/server.rb (WEBrick::GenericServer): close socket only if
+	  the socket is not closed yet.
+
+Sun Apr  1 23:03:18 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/ftp.rb (Net::BufferedSocket): should delegate send() to @io
+	  for Net::FTP#abort and Net::FTP#status.
+
+Sun Apr  1 00:41:56 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/ftp.rb: fixed the domain name in examples.
+
+Sat Mar 31 21:39:45 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/webrick/utils.rb (WEBrick::Utils::TimeoutHandler): dup to prevent
+	  @timeout_info's "can't add a new key into hash during iteration".
+
+Sat Mar 31 14:22:59 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (hash_default_value): extract from rb_hash_aref(), to be
+	  shared with rb_hash_shift(), so that overriding Hash#default
+	  will be respected.
+
+Sat Mar 31 14:16:02 2012  Sokolov Yura (funny-falcon)  <funny.falcon@gmail.com>
+
+	* hash.c: do not allocate st_table when it is not necessary.
+
+Sat Mar 31 13:42:39 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/ftp.rb (read_timeout=, open_timeout=): supported timeout.
+
+Sat Mar 31 13:20:40 2012  Sokolov Yura (funny-falcon)  <funny.falcon@gmail.com>
+
+	* hash.c: remove unnecessary checks for Qundef in hash iterations.
+	  since hash use st_foreach_check for iterations, such checks are
+	  needless.
+
+Sat Mar 31 12:05:01 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_x509cert.c: Fix doc typo.
+
+Sat Mar 31 10:13:24 2012  Sokolov Yura (funny-falcon)  <funny.falcon@gmail.com>
+
+	* st.c (st_foreach_check, st_foreach): remove ancient check.  This
+	  check are from initial ordered hash commit when first entry were
+	  created with entry->fore = entry->back = entry.
+
+	* st.c (st_delete): use real_entries in st_delete for packed tables
+
+Sat Mar 31 07:53:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* st.c (st_foreach_check): remove the entry by replacing with never
+	  when ST_DELETE.
+
+	* hash.c (st_foreach_safe): since table is not for VALUE, Qundef is
+	  not special value, so use 0 instead.  therefore this function can be
+	  applied to only st_table which 0 is invalid as keys, e.g., IDs.
+
+	* hash.c: Qundef cannot be passed from st_foreach_check().
+
+	* hash.c, marshal.c, object.c, variable.c: fix callback argument types
+	  of iterators.
+
+Thu Mar 29 23:50:15 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* st.c (st_update): pass pointer to key to the callback function.
+
+Thu Mar 29 16:36:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* st.c (st_update): add existing parameter to the callback function.
+
+Thu Mar 29 16:35:32 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit.rb (terminal_width, del_status_line, put_status):
+	  extract as methods.
+
+Thu Mar 29 10:20:18 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_pkcs7.c: fix crash when parsing garbage data.
+	* test/openssl/test_pkcs7.rb: assert correct behavior for it.
+	  Thanks to Matt Venables for reporting the issue.
+	  [ruby-core:43250][Bug #6134]
+
+Thu Mar 29 10:16:05 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* thread_win32.c (TIME_QUANTUM_USEC): 10ms(= old setting) [experimental]
+	  cf. [Bug #6098]
+
+Thu Mar 29 10:12:12 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* thread.c (rb_threadptr_execute_interrupts_common): use defined
+	  TIME_QUANTUM_USEC instead of a magic number.  there is no meanings
+	  to use different values for checking interval of interruption and
+	  thread switching limits.
+	  cf. [Bug #6098]
+
+Thu Mar 29 09:26:17 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* test/openssl/test_x509cert.rb: exclude test that fails when issuing
+	  a certificate with RSA signature and DSS1 digest for earlier
+	  OpenSSL versions when used in conjunction with OpenSSL 1.0.1.
+	  Thanks, Vit Ondruch, for reporting the issue.
+	  [ruby-core:42949][Bug #6089]
+
+Thu Mar 29 08:25:35 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* NEWS: add note about unified behavior of encoding nil values in
+	  instances of OpenSSL::ASN1::ASN1Data.
+
+Thu Mar 29 07:45:36 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_asn1.c: raise TypeError when trying to encode nil
+	  values for Primitive instances.
+	* test/openssl/test_asn1.rb: Assert consistent behavior when
+	  encoding nil values: Primitives raise TypeError, Constructives
+	  raise NoMethodError.
+	  Fixes [ruby-core:43009][Bug #6102]
+
+Wed Mar 28 16:39:59 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (obj2uid, obj2gid): allow strings as input user/group id.
+	  [ruby-core:40923][Feature #5610]
+
+Wed Mar 28 15:06:18 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* marshal.c (r_symreal): default to ASCII-8BIT for non-ascii symbols,
+	  otherwise it should be converted to US-ASCII in rb_intern_str() if
+	  possible.  [ruby-core:43762][Bug #6209]
+
+Wed Mar 28 08:44:24 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb: updating version to match gem
+	* ext/psych/psych.gemspec: ditto
+	* ext/psych/lib/psych/visitors/to_ruby.rb: fixing deprecation warning
+
+Tue Mar 27 23:44:11 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* io.c (io_unread): fixed memory leak.  report by nagachika via IRC.
+
+Tue Mar 27 22:44:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (verconf.h): separate load path specific stuff from
+	  config.h.
+
+Tue Mar 27 22:43:40 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/Makefile.sub: fix config.h path to include.
+
+Tue Mar 27 17:08:08 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* win32/win32.c (check_if_dir): fix memory leak.
+
+Tue Mar 27 13:13:51 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (str_new_empty): should copy also the encoding as an
+	  empty substring.  [ruby-dev:45441][Bug #6206]
+
+Mon Mar 26 23:43:04 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/ftp.rb (parse227, parse228, parse229): don't use $~.
+
+Mon Mar 26 23:34:40 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/ftp.rb (parse227, parse228, parse229): don't use local
+	  variables defined by named capture for other Ruby implementations
+	  such as Rubinius.
+
+Mon Mar 26 23:19:03 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/ftp.rb (parse_pasv_port): refactored.
+
+Mon Mar 26 19:49:49 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* test/net/ftp/test_ftp.rb: add the test, which was forgotten in the
+	  previous commit.
+
+Mon Mar 26 19:37:27 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/ftp.rb (parse227, parse228, parse229): refactored.
+
+Mon Mar 26 11:46:23 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c (inspect_enumerator): show method arguments of
+	  lazy enumerators correctly.
+
+Mon Mar 26 13:51:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (check_if_dir, check_if_wdir): fix for Visual C++
+	  not to use S_ISDIR().  [Feature #2408][ruby-core:26925]
+
+	* ruby.c (load_file_internal): ditto.
+
+Mon Mar 26 11:46:01 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ruby.c (load_file_internal): bail out if the script is a directory.
+	  [Feature #2408][ruby-core:26925]
+
+	* win32/win32.c (rb_w32_open, rb_w32_wopen): check if the file is a
+	  directory when access denied, to set errno to EISDIR.
+
+Sun Mar 25 18:13:14 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (tr_setup_table): fix multiple non latin argument for
+	  non latin (over 256 characters) tr-like methods.
+	  [ruby-core:43371] [Bug #6167]
+
+Sun Mar 25 00:46:06 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator (lazy_initialize): set the instance variable "receiver"
+	  to include the receiver to the return value of inspect on a lazy
+	  enumerator directly created by Enumerator::Lazy.new.
+
+	* enumerator (RETURN_LAZY): don't set the instance variable "receiver".
+
+Sat Mar 24 23:59:00 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator (enumerator_inspect): include the original receiver and
+	  method name of Enumerator::Lazy in the result of inspect.
+	  [ruby-core:43345] [Bug #6159]
+
+	* enumerator (InitVM_Enumerator): don't use rb_define_alias for
+	  some methods such as collect in order to make rb_frame_this_func()
+	  return the correct method names.
+
+Sat Mar 24 22:22:18 2012  Sambasiva Rao Suda  <sambasivarao@gmail.org>
+
+	* time.c (time_init_1): Time.new will accept seconds as string or
+	  int.  [ruby-core:43569][Bug #6193]
+
+Fri Mar 23 15:12:12 2012  Martin Duerst  <duerst@it.aoyama.ac.jp>
+
+	* transcode.c (documentation for str_encode): Explain
+	  that transcoding to the same encoding is a no-op
+	  (i.e. no exceptions, no replacements,...).
+	  [ruby-core:43557][Bug #6190]
+
+Fri Mar 23 13:19:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* bignum.c (rb_str_to_inum): must be ASCII compatible encoding as
+	  well as String#hex and String#oct.  [ruby-core:43566][Bug #6192]
+
+	* string.c (rb_must_asciicompat): check if ASCII compatible.
+
+Thu Mar 22 23:14:36 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* transcode.c (str_encode_bang, encoded_dup): if nothing was
+	  transcoded, just set encoding but leave coderange unchanged as
+	  force_encoding.  [ruby-core:43557][Bug #6190]
+
+Thu Mar 22 22:30:44 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* io.c (static int io_fflush): add the definition.
+	  Use it in set_binary_mode_with_seek_cur().
+
+	* io.c (set_binary_mode_with_seek_cur): refactoring to split the
+	  content into io_unread(). Fix the possibility of buffer overflow.
+
+	* io.c (io_unread): add new implementation for Windows. Previous one
+	  caused invalid cursor position using IO#pos with OS text mode. New
+	  one fixes the bug.
+
+	* test/ruby/test_io_m17n.rb
+	  (TestIO_M17N#test_pos_dont_move_cursor_position): add a test for
+	  above bug.
+	  [ruby-core:43497] [Bug #6179]
+
+Thu Mar 22 19:55:08 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_fstat, rb_w32_fstati64): convert FILETIME
+	  to time_t directly, not to be affected by TZ unnecessarily.
+
+	* win32/win32.c (unixtime_to_filetime): convert time_t to FILETIME
+	  simply.
+
+Thu Mar 22 13:43:31 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/openssl/ossl_pkey_rsa.c (rsa_generate): fix argument type.
+	  [Bug #6094]
+
+Thu Mar 22 11:14:10 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_io.rb (TestIO#test_pos_with_getc): updated.
+	  see [ruby-core:43550]
+
+Wed Mar 21 17:57:57 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* regcomp.c: Merge Onigmo 3d855b30d574536d3ae600260208c6624ae4791c.
+	  [Bug#6143] [Bug#6144] [Bug#6145]
+
+Wed Mar 21 17:01:55 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_io.rb (TestIO#test_pos_with_getc): added.
+	  see [Bug #6179][ruby-core:43518]
+
+Mon Mar 19 17:18:51 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c (lazy_flat_map_func): convert the block value to
+	  Array if it doesn't respond to each.  [ruby-core:43334]
+	  [Bug #6155]
+
+Mon Mar 19 16:34:14 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enum.c (zip_i): variadic argument needs explicit cast on the
+	  platforms where VALUE is longer than int.
+
+Mon Mar 19 15:36:41 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c (enumerable_lazy): add an example of take and first
+	  to the documentation.  [ruby-core:43344] [Bug #6158]
+	  add the description of the behavior when a block is given to zip
+	  or cycle.
+
+Mon Mar 19 15:20:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_specialized_instruction): DRY and replace chain
+	  of if-else with switch for special instructions.  based on a
+	  patch by Vasfed.  https://github.com/ruby/ruby/pull/105
+
+Mon Mar 19 15:05:54 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* test/test_pty.rb: same as r29280, skip tests when PTY allocation
+	  failed (that's not our fault).
+
+Sun Mar 18 23:21:17 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (aligned_free): fix condition for free.  memalign() and
+	  posix_memalign() are not defined together normally.
+
+Sun Mar 18 18:31:45 2012  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* gc.c (aligned_malloc, aligned_free): added fallback implementations
+	  for platforms like OSX Leopard.
+
+Sun Mar 18 17:17:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* bignum.c (rb_big_pow): estimate result bit size more precisely.
+	  [ruby-core:30735][Feature #3429]
+
+Sun Mar 18 17:17:36 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (free_method_entry_i): method entry may be in
+	  unlinked_method_entry_list.  [ruby-core:43383][Bug #6171]
+
+Sun Mar 18 15:27:31 2012  Tanaka Akira  <akr@fsij.org>
+
+	* compile.c: typo fix by Run Paint Run Run.
+	  [ruby-core:28368] [Bug #2824]
+
+Sun Mar 18 10:01:02 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* lib/profiler.rb: support calling singleton methods of
+	  an instance of BasicObject.
+
+Sat Mar 17 06:56:58 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* object.c:  Fix indentation of Class#inherited example.
+
+Sat Mar 17 01:46:05 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* string.c (trnext): fix bug with string ending with '\\'.
+	  [ruby-dev:45374][Bug #6160]
+
+	* test/ruby/test_string.rb (TestString#test_delete): test for
+	  above.
+
+Fri Mar 16 20:06:24 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (trnext): should advance char-wise.
+	  [ruby-core:43335][Bug #6156]
+
+Fri Mar 16 17:42:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (block_append_gen): fix unreachable warning line number.
+	  should warn at the code, not jump.
+
+Fri Mar 16 17:33:08 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enum.c (enum_take): allocate buffer array before iteration, as well
+	  as enum_first did.
+
+	* enum.c (enum_first): remove duplication.
+
+Fri Mar 16 14:43:18 2012  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* load.c (ruby_init_ext): don't free the given pointer itself.
+	  It is not guaranteed even that the pointer is on heap.
+
+Fri Mar 16 14:37:57 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_eval.c (rb_mod_module_eval): fix the documentation of
+	  class_eval to mention class variable lookup.  [ruby-core:40649]
+	  [Bug #5544]
+
+Fri Mar 16 14:27:11 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_eval.c (rb_mod_module_eval): fix the documentation of
+	  class_eval to mention constant lookup.  [ruby-core:41718]
+	  [Bug #5777]
+
+Fri Mar 16 14:10:45 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/imap.rb (initialize): raise Net::IMAP::Error when the
+	  connection is closed without a greeting response.
+	  [ruby-core:40938] [Bug #5616]
+
+Fri Mar 16 13:50:12 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/imap.rb (rfc822_text): ignore [] after RFC822.
+	  [ruby-core:40945] [Bug #5620]
+
+Fri Mar 16 12:00:42 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (argument_error): use line number at the beginning
+	  of lambda, not the first code of its body.
+	  [ruby-core:43314][Bug #6151]
+
+	* iseq.c (rb_iseq_first_lineno): constified.
+
+Fri Mar 16 11:20:07 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c (lazy_take): don't enumerate an extra value.
+	  [ruby-dev:45370] [Bug #6152]
+
+Fri Mar 16 06:30:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enumerator.c (lazy_zip_func): variadic argument needs explicit cast
+	  on the platforms where VALUE is longer than int.
+
+	* enumerator.c (lazy_init_iterator): no need to check overflow twice.
+
+Fri Mar 16 05:47:09 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* enumerator.c (lazy_init_iterator):  Fix type error (int vs long).
+
+Thu Mar 15 23:13:36 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enum.c (rb_enum_values_pack): rename from enum_values_pack, and
+	  remove static.
+
+	* enumerator.c (lazy_init_iterator, lazy_init_yielder,
+	  lazy_select_func, lazy_reject_func, lazy_grep_func): handle
+	  multiple values correctly.
+
+	* enumerator.c (lazy_grep): change the behavior when a block is
+	  given, to be consistent with Enumerable#grep.
+
+Thu Mar 15 19:12:31 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c (lazy_zip): rescue StopIteration returned by
+	  Enumerator#next.
+
+Thu Mar 15 18:19:53 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c (lazy_zip, lazy_cycle): Enumerator::Lazy#{zip,cycle}
+	  should be eager when a block is given, to be consistent with
+	  Enumerable#{zip,cycle}.
+
+Thu Mar 15 17:45:27 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c (InitVM_Enumerator): renamed Enumerable::Lazy to
+	  Enumerator::Lazy.
+
+Thu Mar 15 16:37:38 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c (enumerable_lazy): added cycle to the documentation.
+
+Thu Mar 15 15:37:42 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_yylex): fix warning line number.
+
+Thu Mar 15 15:19:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enumerator.c (lazy_cycle): check argument number overflow before
+	  creating temporary array.
+
+Thu Mar 15 15:04:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* util.c (ruby_strtod): no need to check same digit for hexdigit
+	  twice.  [ruby-dev:45363][Bug #6146]
+
+	* parse.y (sym_check_asciionly): check ascii compatibility before
+	  scanning for code range.
+
+	* parse.y (intern_str): set to us-ascii if ascii only.
+	  [ruby-dev:45363][Bug #6146]
+
+	* file.c (ruby_enc_find_basename): allow NULL as alllen.
+	  [ruby-dev:45363][Bug #6146]
+
+Thu Mar 15 14:49:31 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_conv_enc_opts): default to original encoding.
+
+Thu Mar 15 13:47:17 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* hash.c (env_str_new, rb_f_getenv, env_fetch): use rb_str_conv_enc()
+	  instead of rb_str_encode() to simplify the code.
+
+Thu Mar 15 12:44:50 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c, include/ruby/win32.h (rb_w32_ugetenv): new API to
+	  accept and to return UTF-8 strings.
+
+	* win32/win32.c (rb_w32_getenv): follow above change.
+
+	* win32/win32.c (rb_w32_get_environ): returns UTF-8 environment area.
+
+	* hash.c (env_str_new, rb_f_getenv, env_fetch): follow above changes.
+	  [Bug #5570] [ruby-core:40737]
+
+Thu Mar 15 10:57:27 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c (lazy_cycle): add Enumerable::Lazy#cycle.
+
+Thu Mar 15 10:31:40 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/test_arity.rb (TestArity#err_mess): use assert_raise.
+
+Thu Mar 15 07:03:52 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* vm_eval.c (check_funcall):  Raise ArgumentError if respond_to?
+	  requires more than three arguments. [Bug #6000]
+
+	* test/ruby/test_object.rb (class TestObject):  Test for respond_to?
+	  requiring more than three arguments.
+
+Thu Mar 15 06:08:06 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* include/ruby/intern.h: Add rb_check_arity, rb_error_arity [#6085]
+
+	* array.c: Use rb_check_arity / rb_error_arity
+
+	* class.c: ditto
+
+	* enumerator.c: ditto
+
+	* eval.c: ditto
+
+	* file.c: ditto
+
+	* hash.c: ditto
+
+	* numeric.c: ditto
+
+	* proc.c: ditto
+
+	* process.c: ditto
+
+	* random.c: ditto
+
+	* re.c: ditto
+
+	* signal.c: ditto
+
+	* string.c: ditto
+
+	* struct.c: ditto
+
+	* transcode.c: ditto
+
+	* vm_eval.c: ditto
+
+	* vm_insnhelper.c: ditto & implementation of rb_error_arity
+
+	* test/ruby/test_arity.rb: tests for above
+
+Thu Mar 15 06:08:05 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* vm_insnhelper.c: improve number of arguments error in case of
+	  optional parameters (issue #6085)
+
+	* include/ruby/intern.h: define UNLIMITED_ARGUMENTS
+
+	* test/ruby/test_arity.rb:  test for above
+
+Thu Mar 15 00:58:04 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c (enumerable_lazy): fix the documentation of
+	  Enumerable#lazy.
+
+Wed Mar 14 22:01:06 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c (lazy_init_iterator): break when Qundef is returned
+	  to make obj.drop(3).take(2) work properly.
+
+	* enumerator.c (lazy_take_while): add Enumerable::Lazy#take_while.
+
+	* enumerator.c (lazy_drop): add Enumerable::Lazy#drop.
+
+	* enumerator.c (lazy_drop_while): add Enumerable::Lazy#drop_while.
+
+	* enumerator.c (InitVM_Enumerator): add Enumerable::Lazy#force as an
+	  alias of to_a.
+
+Wed Mar 14 19:28:40 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c (lazy_take): add Enumerable::Lazy#take.
+
+Wed Mar 14 18:40:36 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c: use long for array indices.
+
+Wed Mar 14 18:25:18 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c: moved the comment of StopIteration.
+
+Wed Mar 14 17:55:29 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* numeric.c (flodivmod): must go through the same pass if HAVE_FMOD or
+	  not.  this is a bugfix of r35013.
+
+Wed Mar 14 16:41:55 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/test_tmpdir.rb (TestTmpdir#test_world_writable): skip on Windows.
+
+Wed Mar 14 15:09:23 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* numeric.c: fix flodivmod for cornercases [Bug #6044]
+	  add ruby_float_mod
+
+	* insns.def (opt_mod): use ruby_float_mod
+
+	* internal.h: declare ruby_float_mod
+
+	* test/ruby/test_float.rb: tests for above
+
+	* test/ruby/envutil.rb: create helper assert_is_minus_zero
+
+Wed Mar 14 10:44:35 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enumerator.c (lazy_grep_func): should use === instead of =~, as
+	  well as Enumerable#grep
+
+Wed Mar 14 08:15:54 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c (lazy_flat_map_func): use each for non-Array objects.
+
+Wed Mar 14 08:06:35 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c (lazy_zip): add Enumerable::Lazy#zip.
+
+	* enumerator.c (lazy_lazy): just returns self.
+
+Wed Mar 14 07:48:36 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c (datetime_s_now): [ruby-core:43256].
+
+Tue Mar 13 22:00:14 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_set_arguments): keyword rest arg without keyword args.
+
+	* node.c (dump_node): dump kw_rest_arg too.
+
+	* parse.y (block_param, f_arg): more kwrest patterns.
+	  [ruby-core:42455][Bug #5989]
+
+	* parse.y (new_args_gen): no extra kw_rest_arg if no keyword rest arg.
+
+Tue Mar 13 15:17:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (block_param, f_args): add rules for the case arguments
+	  begin with kwrest.  [ruby-core:42455][Bug #5989]
+
+Tue Mar 13 12:37:53 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* io.c (io_encoding_set): always warn if external encoding and internal
+	  encoding are identical. [ruby-core:40727] [Bug #5568]
+
+Tue Mar 13 12:37:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c: add ObjectSpace::WeakMap.  [ruby-dev:44565][Bug #5350]
+
+	* lib/weakref.rb: use WeakMap instead of _id2ref.
+
+Tue Mar 13 10:59:48 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/rbinstall.rb (prepare): skip if basedir is not defined.
+	  [ruby-core:39135][Bug #5238]
+
+	* tool/rbinstall.rb (CONFIG.[]): check for mandatory
+	  configurations.
+
+Tue Mar 13 00:09:18 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c (enumerable_lazy): added documentation.
+
+Mon Mar 12 20:19:25 2012  Tanaka Akira  <akr@fsij.org>
+
+	* lib/tmpdir.rb (Dir::tmpdir): test the current directory suitable for
+	  temporary directory.
+
+Mon Mar 12 20:08:16 2012  Tanaka Akira  <akr@fsij.org>
+
+	* lib/fileutils.rb (fu_have_symlink?): specify TypeError for rescue
+	  clause.
+
+Mon Mar 12 19:23:13 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* encoding.c (rb_find_encoding): new function find encoding from
+	  arbitrary object as a pointer to rb_encoding, and return NULL if
+	  not found.
+
+	* io.c (io_encoding_set): just warn unsupported encodings, but not
+	  exception.  [ruby-core:40726] [Bug #5567]
+
+Mon Mar 12 19:03:32 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_method.c (Init_eval_method): respond_to? and
+	  respond_to_missing? are public.
+
+Mon Mar 12 14:56:52 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* node.h (NEW_YIELD), parse.y (new_yield_gen): array-values flags
+	  has been already obsolete.  patch by Thomas Enebo.
+	  [ruby-core:41929][Bug #5847]
+
+Mon Mar 12 12:44:33 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_method.c (Init_eval_method): copy basic methods to Exception.
+	  [ruby-core:40287][Bug #5473]
+
+Mon Mar 12 10:13:36 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval_jump.c (rb_exec_end_proc): remember the latest exit status.
+	  [ruby-core:43173][Bug #5218]
+
+Mon Mar 12 07:33:12 2012  Tanaka Akira  <akr@fsij.org>
+
+	* lib/tmpdir.rb: update document for changing
+	  FileUtils.remove_entry_secure to FileUtils.remove_entry.
+
+	* NEWS: add incompatibility note for lib/tmpdir.rb.
+
+Mon Mar 12 07:19:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/tmpdir.rb (Dir.tmpdir): should not use world-writable but
+	  non-sticky directory.
+
+	* lib/tmpdir.rb (Dir.mktmpdir): check the parent directory.
+
+Mon Mar 12 07:04:11 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* random.c (Init_Random): removed rb_Random_DEFAULT and register as
+	  mark-object instead of global variable.
+
+Mon Mar 12 07:03:32 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* random.c (random_s_rand): ensure default PRNG is re-initialized
+	  after fork.  patched by Eric Wong.  [ruby-core:41209][Bug #5661]
+
+Sun Mar 11 23:57:29 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* pack.c (pack_unpack): when unpack('M') occurs an illegal byte
+	  sequence, output the "=" character and the following character in
+	  the decoded data without any transformation.
+	  [ruby-dev:44875] [Bug #5635]
+
+Sun Mar 11 22:32:43 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/json: Merge 164a75c8bd2007d32c4d7665d53140d8fc126dcd.
+	  [ruby-core:41917] [Bug #5846]
+
+Sun Mar 11 17:10:04 2012  Shota Fukumori  <sorah@tubusu.net>
+
+	* lib/test/unit.rb: Put error message into STDERR if failed to launch
+	  worker (job) process. [ruby-dev:44802] [Bug #5577]
+
+	* lib/test/unit/parallel.rb: If failed to increment_io, exit with code
+	  2. [ruby-dev:44802] [Bug #5577]
+
+Sun Mar 11 15:46:45 2012  Shota Fukumori  <sorah@tubusu.net>
+
+	* io.c: fix rdoc of `IO.binwrite` to show same as `IO.write` except
+	  it opens file with mode "wb:ASCII-8BIT". [Bug #5782] [ruby-core:42592]
+
+Sat Mar 10 23:52:28 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* st.c: pack tables also generic keys.  patched by Sokolov Yura at
+	  https://github.com/ruby/ruby/pull/84
+
+	* st.c: add st_foreach_check for fixing iteration over packed table
+	  and st_delete_safe.  patched by Sokolov Yura at
+	  https://github.com/ruby/ruby/pull/84
+
+	* st.c: fix packed num_entries on delete_safe.  patched by Sokolov
+	  Yura at https://github.com/ruby/ruby/pull/84
+
+Fri Mar  9 14:29:32 2012  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* enumerator.c (lazy_flat_map): add Enumerable::Lazy#flat_map.
+
+Fri Mar  9 06:29:22 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb (load, parse): stop parsing or loading after
+	  the first document has been parsed.
+
+	* test/psych/test_stream.rb: pertinent tests.
+
+Fri Mar  9 06:17:05 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb (parse_stream, load_stream): if a block is
+	  given, documents will be yielded to the block as they are parsed.
+	  [ruby-core:42404] [Bug #5978]
+
+	* ext/psych/lib/psych/handlers/document_stream.rb: add a handler that
+	  yields documents as they are parsed
+
+	* test/psych/test_stream.rb: corresponding tests.
+
+Fri Mar  9 00:35:03 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enumerator.c (lazy_initialize, enumerable_lazy): no additional
+	  arguments.
+
+Fri Mar  9 00:30:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enumerator.c: add Enumerable#lazy. based on the patch by
+	  Innokenty Mikhailov at <https://github.com/ruby/ruby/pull/101>
+	  [ruby-core:37164] [Feature #4890]
+
+Fri Mar  9 00:25:59 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enumerator.c (enumerator_each, generator_each): pass arguments to
+	  the block with yielder.
+
+Fri Mar  9 00:25:02 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_cat): new function to concat objects into array.
+
+Thu Mar  8 16:44:02 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* .gdbinit (rb_numtable_entry): update for recent refactoring of
+	  st_table.
+
+Wed Mar  7 22:41:50 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* lib/xmlrpc/client.rb (module XMLRPC): fix typo.
+
+	* test/xmlrpc/test_client.rb (test_async_call): add test for
+	  XMLRPC::Client#call_async to check above fix.
+
+Wed Mar  7 16:30:24 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (rb_load_fail): should honor encoding.
+
+	* load.c (load_failed): ditto.
+
+Wed Mar  7 12:26:25 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (rb_load_fail): use path as a string, not char*.
+
+	* internal.h: (rb_load_fail): moved from ruby/intern.h.
+
+	* ruby.c (load_file_internal): fname cannot be NULL.
+
+Wed Mar  7 08:32:43 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* error.c (rb_loaderror_with_path): Adding the missing file as an
+	  instance variable to the LoadError exception.
+	  [ruby-core:39079]
+
+	* load.c: call rb_loaderror_with_path so that the missing path is
+	  added to the exception.
+
+	* ruby.c: call rb_loaderror rather than raising our own LoadError
+	  exception.
+
+	* include/ruby/intern.h: add declaration for rb_loaderror_with_path.
+
+	* test/ruby/test_require.rb: add supporting test for LoadError#path
+	  method.
+
+Wed Mar  7 08:28:00 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* lib/xmlrpc/parser.rb: support i8 types. Thanks Stas Kelvich!
+	  [ruby-core:29246] [Feature #3090]
+
+	* test/xmlrpc/test_client.rb: supporting test
+
+Wed Mar  7 07:43:29 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* lib/xmlrpc/client.rb: assume servers that do not send a Content-Type
+	  header are sending 'text/xml'. Thanks Nathan Leavitt!
+	  [ruby-core:41204] [Bug #5660]
+
+	* test/xmlrpc/test_client.rb: supporting test
+
+Wed Mar  7 07:39:28 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* test/xmlrpc/test_client.rb: adding a test for performing an XMLRPC
+	  call.
+	* test/xmlrpc/data/blog.xml: supporting XML document for the response.
+
+Tue Mar  6 16:24:01 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_tokadd_string): escape simple regexp meta
+	  character terminators.
+
+Tue Mar  6 10:11:43 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/io/console/console.c (set_rawmode): clear ECHOE and ECHOK
+	  bits too.
+
+	* ext/io/console/console.c (echo_p): ignore ECHOE and ECHOK bits.
+	  [ruby-dev:45309] [Bug #6116]
+
+	* ext/io/console/console.c (console_raw): fix rdoc.
+
+	* ext/io/console/console.c (console_set_echo): mentioned about
+	  platform dependency.
+
+Tue Mar  6 07:18:10 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* lib/xmlrpc/client.rb: switch net/http post2 calls to modern
+	  `request_post` methods.
+
+Tue Mar  6 02:31:20 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/core_ext.rb: only extend Kernel if IRB is loaded
+	  in order to stop method pollution.
+
+Tue Mar  6 01:34:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (block_call): rules for block_call after block_call.
+	  based on a patch by pasberth https://github.com/ruby/ruby/pull/102
+	  [ruby-dev:45308][Bug #6115]
+
+Tue Mar  6 01:24:13 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (block_command, block_call): simplified rules.
+
+Mon Mar  5 18:28:35 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* test/ruby/test_regexp.rb (TestRegexp#test_source): fix typo.
+	* test/ruby/test_regexp.rb (TestRegexp#test_equal): ditto.
+
+Mon Mar  5 17:11:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/syck/lib/syck/rubytypes.rb (Exception.yaml_new): fix bug
+	  that causes YAML serialization problem for Exception.
+	  Exception#initialize doesn't use visible instance variable for
+	  the exception message, so call the method with the message.
+	  patched by Jingwen Owen Ou <jingweno AT gmail.com>.
+	  http://github.com/ruby/ruby/pull/41
+
+Mon Mar  5 16:50:22 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_sleep.rb (TestSleep#test_sleep_5sec): syntax error.
+
+	* test/ruby/test_sleep.rb (TestSleep#test_sleep_5sec): call uname
+	  only on linux because it's a workaround for linux only.
+
+Mon Mar  5 12:44:12 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* st.c (unpack_entries): chain entries directly.  based on a patch
+	  by Sokolov Yura <funny.falcon AT gmail.com>.
+
+	* st.c (unpack_entries): use union instead of casted pointer.
+	  patched by Sokolov Yura <funny.falcon AT gmail.com>.
+
+	* st.c: use PACKED_ENT and FIND_ENTRY.  patched by Sokolov
+	  Yura <funny.falcon AT gmail.com>.
+
+	* st.c (unpack_entries): reallocate bins if packed array size
+	  is not same as initial bins size.  based on a patch by
+	  Sokolov Yura <funny.falcon AT gmail.com>.
+
+Mon Mar  5 11:51:48 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/bigdecimal/lib/bigdecimal/math.rb: remove description about
+	  BigMath#log. patched by Sho Hashimoto [ruby-dev:45307] [Bug #6112]
+
+	* string.c (str_byteslice): fix typo.
+
+Sun Mar  4 23:21:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_tokadd_string): regexp engine doesn't need
+	  terminators to be escaped.  [ruby-core:40364][Bug #5484]
+
+Sat Mar  3 22:51:46 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_run_exec_options_err): chdir at last to interpret
+	  relative pathnames from the current directory of the parent process.
+
+Sat Mar  3 12:20:44 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_strftime.c: reassigned some variables.
+
+Sat Mar  3 12:12:16 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_{parse,strptime}.c: [ruby-dev:45303].
+
+Sat Mar  3 10:09:21 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* lib/xmlrpc/client.rb (initialize): net/http defaults to 1_2 in 1.8+,
+	  so we can safely remove the call to enable it.
+
+Sat Mar  3 08:42:25 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* lib/xmlrpc/client.rb (new2): use URI for uri parsing.
+	* test/xmlrpc/test_client.rb: test that query params are passed to the
+	  client constructor.
+
+Sat Mar  3 08:20:10 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* lib/xmlrpc/client.rb (new2): raises an ArgumentError on bad
+	  arguments.
+	* test/xmlrpc/test_client.rb: tests for bad uris
+
+Sat Mar  3 08:08:11 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* lib/xmlrpc/client.rb (new2): fix custom port specification when an
+	  SSL uri is used.
+	* test/xmlrpc/test_client.rb: tests for XMLRPC::Client.new2
+
+Sat Mar  3 08:03:29 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/syck/rubyext.c (mktime_do): use ISDIGIT().
+	  [ruby-core:43060] [Bug #6108]
+
+	* ext/syck/token.c (sycklex_yaml_utf8): cast as unsigned char.
+	  [ruby-core:43060] [Bug #6108]
+
+Sat Mar  3 06:57:14 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (ruby_pc): make configurable.  [Bug #6051]
+
+Fri Mar  2 17:49:03 2012  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* .travis.yml (branches): Enable TravisCI for ruby_1_9_3.
+
+Fri Mar  2 17:13:33 2012  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* test/ruby/test_array.rb (test_combination2): Make the test case for
+	  [ruby-core:29240] more descriptive.
+	  cf. http://bugs.jruby.org/6518
+
+Fri Mar  2 16:37:11 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (file_expand_path): use wcscasecmp().
+
+Fri Mar  2 16:36:31 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread_pthread.c (native_cond_timeout): cast explicitly to suppress
+	  a warning.
+
+Fri Mar  2 16:35:56 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (pipe_open): cmd is no longer used if fork is available.
+
+Thu Mar  1 16:13:18 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* internal.h (rb_file_const, rb_file_load_ok): moved functions for
+	  internal use only.
+
+Thu Mar  1 15:40:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/makedirs.bat: new command to make intermediate
+	  directories, and not to report any errors if the directory
+	  already exists.
+
+	* win32/Makefile.sub (MAKEDIRS): enable command extensions.
+
+Thu Mar  1 01:25:43 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* regparse.c (is_onechar_cclass): optimize character class
+	  Merge Onigmo 27278c12e6674043cc8affca6507e20e119a86ee.
+
+	* regparse.c (is_onechar_cclass): [bug] unexpected match occurs when a
+	  char class contains no char
+
+	* enc/unicode.c (init_case_fold_table): define the sizes of case
+	  folding tables in casefold.h
+
+Wed Feb 29 16:11:34 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/Makefile.sub (MAKEDIRS): use mkdir of cmd.exe instead of ruby.
+	  [Bug #6103] [ruby-core:43012]
+
+	* win32/README.win32: added a notice about command extension of cmd.exe.
+
+Wed Feb 29 15:39:39 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_io.rb (TestIO#test_readpartial_locktmp): skip on
+	  windows because of the platform restriction.
+
+Wed Feb 29 15:38:50 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/memory_status.rb (Memory): syntax error.
+
+Wed Feb 29 13:06:42 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/memory_status.rb: use /proc/self/status if it is in
+	  the expected format.
+
+Wed Feb 29 06:14:51 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: reverted r34825.
+
+Tue Feb 28 23:20:01 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* Makefile.in (PLATFORM_DIR): add a variable for `win32` directory.
+	* Makefile.in (clean-platform): add new target.
+	  It cleans `win32` directory.
+
+	* common.mk (clean): add a dependency for `win32` directory.
+	* common.mk (distclean): ditto.
+	* common.mk (distclean-platform): add new target.
+	  It cleans `win32` directory.
+	* common.mk ($(PLATFORM_D)): add new target to make `win32` directory.
+	* common.mk (win32/win32.$(OBJEXT)): move win32.o into `win32`
+	  directory.
+	* common.mk (win32/file.$(OBJEXT)): add new target for win32/file.c.
+
+	* configure.in: move win32.o into `win32` directory and add
+	  win32/file.o to MISSING.
+
+	* file.c (file_load_ok, rb_file_load_ok): replace static
+	  file_load_ok() with public rb_file_load_ok().
+	  It's to link Windows implementation in win32/file.c.
+	* file.c (rb_find_file_ext_safe): ditto.
+	* file.c (rb_find_file_safe): ditto.
+
+	* win32/file.c (rb_file_load_ok): new file. Add Windows specific
+	  optimized implementation of rb_file_load_ok(). We created a
+	  separated file to avoid too many #ifdef macro which is unreadable.
+
+	* win32/Makefile.sub (PLATFORM_DIR): add a variable for `win32`
+	  directory.
+	* win32/Makefile.sub (MISSING): move win32.obj into `win32`
+	  directory and add win32/file.obj to MISSING.
+	* win32/Makefile.sub (MAKEDIRS): replace MINIRUBY with BASERUBY.
+	  It's because miniruby doesn't exist when making `win32` directory.
+	* win32/Makefile.sub (clean-platform): add new target to clean `win32`
+	  directory.
+	* win32/Makefile.sub ({$(srcdir)}.c{}.obj): make it not match
+	  win32/file.c to build properly.
+	* win32/Makefile.sub (win32/win32.$(OBJEXT)): move win32.obj into
+	 `win32` directory.
+
+	  Patch created with Luis Lavena.
+	  [ruby-core:42480] [Feature #5999]
+
+Tue Feb 28 20:27:25 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: [ruby-core:42998]
+
+Tue Feb 28 18:47:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (io_binwrite, rb_io_syswrite): use shared frozen source
+	  strings.
+
+	* io.c (io_fread, io_getpartial, rb_io_sysread): set buffer size
+	  after check if readable, which can cause thread switch.
+	  [ruby-dev:45297][Bug #6099]
+
+Tue Feb 28 17:16:01 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/time.rb (Time#xmlschema): use strftime specifiers instead of
+	  fractional exponential calculation which yields undesirable
+	  result.  [ruby-core:42997][Bug #6100]
+
+Tue Feb 28 14:15:29 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/protocol.rb: Add OpenTimeout subclass of Timeout::Error
+	* lib/net/pop.rb:  Modernize Timeout usage.  Patch by Eric Wong.
+	  Use Net::OpenTimeout instead of Timeout::Error.  [Bug #5765]
+	* lib/net/http.rb:  ditto
+	* lib/net/smtp.rb:  ditto
+	* lib/net/telnet.rb:  ditto
+
+Tue Feb 28 13:51:12 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/http.rb:  Retry HTTP requests for additional network errors.
+	  Introduce OpenTimeout subclass of Timeout::Error.  [Bug #6001]
+	* test/net/http/test_http.rb:  Reduce timeout to 0.01s for faster test
+	* test/net/http/test_https.rb:  ditto
+
+Tue Feb 28 11:44:49 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (debugflags): check if -ggdb is accepted.
+	  [ruby-core:42875][Bug #6080]
+
+Tue Feb 28 10:28:51 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb: default open YAML files with utf8 external
+	  encoding. [ruby-core:42967]
+	* test/psych/test_tainted.rb: ditto
+
+Mon Feb 27 23:46:09 2012  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* parse.y (opt_bv_decl): allow newline at the end.  [ruby-dev:45292]
+
+Mon Feb 27 20:43:05 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* io.c (rb_io_set_pos): add rdoc about textmode.
+
+	* test/ruby/test_io.rb (TestIO#test_setpos): use binmode.
+
+Mon Feb 27 17:00:15 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* string.c (rb_str_crypt): Update rdoc and state that this
+	  function is system dependent.  Reviewed by nobu, thanks to
+	  @takai.
+
+Mon Feb 27 17:03:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/bigdecimal/bigdecimal.c (GetVpValueWithPrec): since methods
+	  can be overridden, so should not make an assumption on the type
+	  of results.  [ruby-core:42969][Bug #6093]
+
+Mon Feb 27 10:54:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (try_cppflags, try_cflags, try_ldflags): replace the
+	  target flags if the given flag is accepted.
+
+Mon Feb 27 10:53:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/rubygems/test_gem_specification.rb (test_self_from_yaml_syck_default_key_bug):
+	  ignore the test for too old versions.
+
+Mon Feb 27 10:53:12 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit.rb (Test::Unit::Runner#puke): skips with no
+	  messages should be trivial.
+
+Mon Feb 27 10:50:23 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c, process.c, time.c, ext: use rb_sys_fail_str instead of
+	  rb_sys_fail.
+
+Mon Feb 27 10:48:49 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/openssl/extconf.rb: suppress useless deprecation warnings
+	  from OpenSSL added by Apple.
+
+Sun Feb 26 23:29:49 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* regparse.c (add_code_range_to_buf0): wrong condition of duplicated
+	  warnings.
+
+Sun Feb 26 11:26:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_compile_each): call on special object instead of
+	  self.  since stabby lambda is a syntax, so it should not be
+	  affected by the context.  [ruby-core:42349][Bug #5966]
+
+	* insns.def (send): no special deal for FCALL.  self should be put
+	  on TOS instead.
+
+Sun Feb 26 05:35:43 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* error.c (report_bug): use buf and snprintf to avoid consuming stack.
+	  [ruby-dev:45272] [Bug #6058]
+
+Sat Feb 25 17:41:19 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb (headers): try ambiguous headers at last.
+
+Sat Feb 25 17:07:15 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/fileutils.rb: use chomp(?/) instead of sub to optimize and avoid
+	  to regexping invalid string.
+
+Sat Feb 25 16:18:24 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* complex.c (nucomp_marshal_load): raise error on invalid data.
+	  reported by John Firebaugh [ruby-core:42860] [Bug #6076]
+
+Sat Feb 25 14:46:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/dl/dl.c (Init_dl): support intrinsic types, size_t, ptrdiff_t
+	  and intptr_t.  [ruby-core:42460][Feature #5992]
+
+	* ext/fiddle/fiddle.c (Init_fiddle): ditto.
+
+	* ext/dl/lib/dl/cparser.rb (DL::CParser#parse_ctype): ditto.
+
+Sat Feb 25 11:08:28 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/curses/curses.c (Init_curses): use rb_define_const once for
+	  Curses::VERSION.
+
+	* ext/dbm/dbm.c (Init_dbm): ditto for DBM::VERSION.
+
+Sat Feb 25 10:34:22 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/curses/curses.c (Init_curses): make Curses::VERSION
+	  understandable without context.
+
+	* ext/dbm/dbm.c (Init_dbm): ditto for DBM::VERSION.
+
+Sat Feb 25 07:53:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_tokadd_string): insert a backslash only if
+	  quoted by single quotes.  [ruby-dev:45281] [Bug #6069]
+
+Sat Feb 25 07:53:49 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (dir_inspect), io.c (rb_io_inspect): keep encoding of path.
+	  [Bug #6072]
+
+Sat Feb 25 07:53:40 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (dir_initialize): keep path in original encoding.
+
+	* error.c (syserr_initialize): prefer the encoding of message over
+	  locale.  [ruby-dev:45279][Bug #6071]
+
+Sat Feb 25 06:55:29 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (utime_internal): fix a variable missed to replace.
+	  [ruby-core:42864] [Bug #6077]
+
+Fri Feb 24 18:21:55 2012  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* test/zlib/test_zlib.rb (TestZlibGzipReader#test_encoding): Add
+	  encoding testcases for GzipReader#read.  read() emits
+	  Encoding.default_external in contrast to read(size) emits BINARY.
+	  See also: http://bugs.jruby.org/6208
+
+Fri Feb 24 17:56:39 2012  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* test/ruby/test_literal.rb (TestRubyLiteral#test_special_const):
+	  test for https://bugs.php.net/bug.php?id=61095
+
+Fri Feb 24 16:48:29 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c, file.c, io.c (rb_sys_fail_path): use rb_sys_fail_str.
+
+	* error.c: new functions to deal exceptions with string instances.
+
+	* dir.c, file.c, io.c: use rb_sys_fail_path.
+
+Fri Feb 24 15:49:07 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (__builtin_unreachable): check for clang.
+	  [ruby-core:42849]
+
+	* include/ruby/ruby.h (UNREACHABLE): fallback definition.
+
+Fri Feb 24 13:54:33 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/parser.c: prevent a memory leak by protecting calls to
+	  handler callbacks.
+	* test/psych/test_parser.rb: test to demonstrate leak.
+
+Fri Feb 24 12:07:34 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* lib/net/http.rb: Fix documentation. Patched from Florian Mhun
+	  via http://github.com/ruby/ruby/pull/96
+
+Fri Feb 24 11:48:07 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* string.c (rb_str_prepend): Fix documentation for String#prepend.
+	  Patched from Franck Verrot via http://github.com/ruby/ruby/pull/98
+	  and Andrew Horsman via http://github.com/ruby/ruby/pull/55
+
+Fri Feb 24 10:08:33 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/http.rb (Net::HTTP#transport_request):  Fix infinite loop
+	  upon EOFError or Errno::ECONNRESET where count is reset to 0.
+	* test/net/http/test_http.rb (class TestNetHTTPKeepAlive):  Test for
+	  above.
+
+Fri Feb 24 09:05:40 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* complex.c (Init_Complex):  Document Complex::I.  Patch by Sylvain
+	  Daubert.  [Feature #5623]
+
+Fri Feb 24 08:52:09 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_tokadd_string, parser_yylex): insert a backslash
+	  if the next character is non-ascii.  [ruby-dev:45278] [Bug #6069]
+
+Fri Feb 24 08:13:20 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/profiler.rb:  Add Profiler documentation by Gonzalo Rodriguez.
+	  [Bug #5816]
+
+Fri Feb 24 08:08:38 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/parser.c: set parser encoding based on the YAML input
+	  rather than user configuration.
+	* test/psych/test_encoding.rb: corresponding tests.
+	* test/psych/test_parser.rb: ditto
+	* test/psych/test_tainted.rb: ditto
+
+Fri Feb 24 08:02:52 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* hash.c (Init_Hash):  Add section on how objects are used as Hash keys
+	  and how to use custom classes as Hash keys.
+
+Fri Feb 24 07:36:11 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* object.c (rb_obj_eql):  Improve equality documentation by adding an
+	  example of equal? vs == and recommending eql? be aliased to == when
+	  overridden.
+
+Fri Feb 24 07:21:15 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* object.c (rb_obj_hash):  Added note that the hash value is not
+	  deterministic on Marc-Andre's suggestion.  Expanded description of
+	  the purpose of the hash method.  [Bug #6068]
+
+Thu Feb 23 23:01:21 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: unused macro removed.
+
+Thu Feb 23 22:26:53 2012  Tanaka Akira  <akr@fsij.org>
+
+	* test/test_curses.rb: new file.
+
+Thu Feb 23 19:57:56 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/curses/rain.rb: trap SIGHUP, SIGINT, SIGQUIT and SIGTERM only.
+
+Thu Feb 23 19:56:48 2012  Tanaka Akira  <akr@fsij.org>
+
+	* signal.c (sig_trap): show signal name on error.
+
+Thu Feb 23 12:21:48 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: use DBM_SUFFIX only to detect header of
+	  Berkeley DB.
+
+Thu Feb 23 10:00:18 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* io.c (rb_io_f_sync):  Fix double-negative typo.  [ruby-trunk - #5837]
+
+Thu Feb 23 09:57:21 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* load.c (rb_f_require):  Add note to require for scope of items in the
+	  loaded file.  [ruby-trunk - #5910]
+
+Thu Feb 23 03:58:08 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/ostruct.rb (delete_field): Bug fix so previous value is
+	  returned. Patch by Nick Recobra [Bug #6063]
+
+Thu Feb 23 02:33:00 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_io_extract_modeenc): fail only if conflicting
+	  text/binary modes given explicitly.  [ruby-dev:45268][Bug #6055]
+
+Wed Feb 22 23:27:08 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/iconv/test_option.rb: enabled.  [ruby-core:42802][Bug #6061]
+
+Wed Feb 22 21:45:56 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/curses/curses.c: use defined() to suppress a warning.
+
+Wed Feb 22 21:44:29 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/curses/extconf.rb: refactored.
+
+Wed Feb 22 20:42:28 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/curses/extconf.rb: try to distinguish curses_version is a
+	  function or variable.
+
+	* ext/curses/curses.c (Init_curses): refine Curses::VERSION.
+
+Wed Feb 22 19:47:03 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/curses/extconf.rb: show the chosen header and library.
+
+Wed Feb 22 19:22:31 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* reverted 34739 for test/date.
+
+Wed Feb 22 19:08:55 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/curses/extconf.rb: refactored.
+
+Wed Feb 22 18:44:41 2012  Shota Fukumori  <sorah@tubusu.net>
+
+	* lib/test/unit.rb (setup_options): add option "--retry" as opposite
+	  for "--no-retry"
+
+Wed Feb 22 18:34:02 2012  Shota Fukumori  <sorah@tubusu.net>
+
+	* lib/test/unit.rb (setup_options): add option "--show-skip" to
+	  cancel "--hide-skip" (-q)
+
+Wed Feb 22 17:36:22 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_io_s_foreach): argument check before making Enumerator.
+	  [ruby-dev:31525]
+
+Wed Feb 22 17:07:35 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_io_s_foreach): return enumerator including keyword
+	  arguments.  [ruby-dev:45267][Bug #6054]
+
+Wed Feb 22 12:15:16 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: allow llvm-gcc because it work fine with r34278.
+
+Wed Feb 22 10:57:08 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* regparse.c (fetch_token): don't use // comment.
+
+Wed Feb 22 10:32:11 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/mkmf/test_framework.rb: try CoreFoundation framework, than
+	  Cocoa which is dependent on QuickTime SDK which has separated
+	  since Xcode 4.3.
+
+Wed Feb 22 10:18:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (test-all, test-ruby): more dependencies.
+
+Wed Feb 22 06:48:55 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* file.c (rb_f_test):  Fix formatting of Kernel#test rdoc.
+
+Wed Feb 22 06:12:15 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: check DBM_SUFFIX for Mac OS X.
+	  Its ndbm.h doesn't include db.h.
+
+Wed Feb 22 06:02:42 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/dbm.c (fdbm_initialize): disable Berkeley DB error messages.
+
+	* ext/dbm/extconf.rb: check DBC type for above.
+
+	[ruby-dev:45269]
+
+Tue Feb 21 20:23:47 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (rb_any_hash): treat Qundef like as other special constants.
+
+	* hash.c (hash_foreach_iter): fix signature.
+
+Tue Feb 21 19:39:34 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/curses/curses.c (Init_curses): use curses_version() for
+	  Curses::VERSION.
+
+Tue Feb 21 18:21:25 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c : remove gc_clear_mark_on_sweep_slots() and use
+	  rest_sweep() instead of it, because some dead objects might be
+	  marked in next the mark phase by false pointers.
+	  [ruby-core:42672]
+
+Tue Feb 21 16:08:17 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (rb_hash_proc): get wrapped pointer properly.  [Bug #6048]
+
+Tue Feb 21 14:41:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* template/ruby.pc.in: added rubylibprefix, {rubylib,vendor,site}dir
+	  and {ruby,vendor,site}archdir.  [ruby-core:42766][Feature #6052]
+
+Tue Feb 21 09:13:25 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* proc.c (method_hash, proc_hash): Fix {Unbound}Method#hash
+	  [Bug #6048]. Isolate hash computation for proc
+
+	* internal.h: Declaration for above
+
+	* vm_method.c (rb_method_definition_hash): Computation for
+	  hash part of a method definition
+
+	* method.h: Declaration for above
+
+	* test/ruby/test_method.rb: Test for above
+
+Tue Feb 21 02:56:15 2012  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* enumerator.c (enumerator_rewind): update the documentation.
+	  fixed: #6053
+
+Mon Feb 20 23:38:35 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* enc/depend: ignore mktable.c because it's not encoding library.
+	  [ruby-core:42760] [Bug #6049]
+
+Mon Feb 20 21:40:53 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/curses/extconf.rb: fold too long lines.
+
+Mon Feb 20 21:16:48 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* lib/fileutils.rb: revert a line modified accidentally at r34669.
+	  This fixes mingw test errors in TestDir_M17N.
+	  [ruby-core:42728] [Feature #4970]
+
+Mon Feb 20 21:09:27 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/curses/curses.c (Init_curses): define Curses::VERSION.
+
+Mon Feb 20 21:08:00 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/curses/extconf.rb: restore $libs and $defs for each
+	  header/library choice.
+
+Mon Feb 20 19:57:26 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: weaken header/library consistency check if db is
+	  "ndbm".  It seems several (possibly historical) distributions
+	  provide libndbm.  However the content of libndbm vary: Berkeley DB,
+	  GDBM or even 4.3BSD NDBM.  (Mandriva, Tru64 UNIX, OpenSuSE,
+	  SCO OpenServer, ...)
+	  "ndbm" is not searched automatically now (dblib doesn't contain it)
+	  but configure --with-dbm-type=ndbm choose libndbm and ndbm.h.
+
+Mon Feb 20 19:15:57 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: refine variable names.
+
+Mon Feb 20 15:50:33 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: check if -fstack-protector is really available.
+
+Sun Feb 19 23:43:38 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: show header and library found.
+
+Sun Feb 19 23:01:01 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/dbm.c (Init_dbm): refine DBM::VERSION definition.
+
+	* ext/dbm/extconf.rb: provide RUBYDBM_GDBM_HEADER macro.
+
+Sun Feb 19 17:07:27 2012  Tanaka Akira  <akr@fsij.org>
+
+	* test/dbm/test_dbm.rb (test_dbmfile_suffix): check pag and dir is
+	  empty for 4.3BSD ndbm.
+
+Sun Feb 19 03:00:30 2012  Tanaka Akira  <akr@fsij.org>
+
+	* test/dbm/test_dbm.rb (test_dbmfile_suffix): check magic numbers.
+
+Sun Feb 19 01:05:41 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: detect GDBM's ndbm.h by testing dbm_clearerr is
+	  an empty macro.
+
+Sun Feb 19 00:25:55 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: don't choose 'dbm' if _GDB_H_ is defined which
+	  is available since GDBM 1.9 because 'gdbm_compat' is appropriate
+	  choice since GDBM 1.8.1.
+
+Sat Feb 18 23:27:00 2012  Kenta Murata  <mrkn@mrkn.jp>
+
+	* random.c: remove a duplicated comment.
+
+Sat Feb 18 18:43:13 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb (dblib): prefer recent GDBM over older GDBM.
+	  (have_declared_libvar): new function to check a declared variable
+	  exists in a library.
+	  (have_undeclared_libvar): renamed from renamed from have_libvar.
+	  (headers.db_check2): check that GDBM version variable if GDBM header
+	  is chosen.
+
+	* ext/dbm/dbm.c (Init_dbm): use HAVE_DECLARED_LIBVAR_GDBM_VERSION and
+	  HAVE_UNDECLARED_LIBVAR_GDBM_VERSION macro.
+
+Sat Feb 18 13:53:01 2012  Tanaka Akira  <akr@fsij.org>
+
+	* test/dbm/test_dbm.rb (test_dbmfile_suffix): DBM::VERSION should
+	  be Berkeley DB if foo.db is created by DBM.open.
+
+Sat Feb 18 13:40:37 2012  Tanaka Akira  <akr@fsij.org>
+
+	* test/dbm/test_dbm.rb (test_dbmfile_suffix): test dbm file suffix.
+
+Sat Feb 18 12:50:59 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/dbm.c (DBM::VERSION): define it by detecting _GDBM_H_ or
+	  _DBM_IOERR.
+
+Sat Feb 18 07:52:45 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/enc-unicode.rb: don't use 1.9 feature on tools.
+
+Sat Feb 18 02:48:39 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* lib/fileutils.rb: refactored FileUtil methods to use the
+	  `define_command` API.  Patch from 7rans <transfire@gmail.com>
+	* test/fileutils/test_dryrun.rb: corresponding test refactoring
+	* test/fileutils/test_nowrite.rb: ditto
+	* test/fileutils/test_verbose.rb: ditto
+
+Fri Feb 17 21:39:36 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: remove dbm.
+
+Fri Feb 17 21:18:39 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: refine header/library mismatch detection.
+	  check only for ndbm.h except libc.  check _GDBM_H_ for gdbm.
+	  check _DBM_IOERR for the original ndbm.
+
+Fri Feb 17 20:30:44 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: don't check libdbm.  It is not a ndbm
+	  implementation.  (libdbm in Version 7 Unix is database library
+	  for single database per process.)
+
+Fri Feb 17 15:38:53 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* Merge Onigmo-5.13.1. [ruby-dev:45057] [Feature #5820]
+	  https://github.com/k-takata/Onigmo
+	  cp reg{comp,enc,error,exec,parse,syntax}.c reg{enc,int,parse}.h
+	  cp oniguruma.h
+	  cp tool/enc-unicode.rb
+	  cp -r enc/
+
+Fri Feb 17 15:20:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enum.c (enum_each_slice): arrays to be yielded can be newly
+	  created in the block.
+
+	* enum.c: move work variables to objects not to let called blocks
+	  access stack area out of scope.  [Bug #5801]
+
+Fri Feb 17 12:35:55 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/merger.rb: remove borders from the commit message which is used
+	  when the commit doesn't change ChangeLog.
+
+Fri Feb 17 11:50:11 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (btest, btest-ruby, test-sample test-knownbugs)
+	  (test-all, test-ruby): depend on prog.
+
+Fri Feb 17 09:56:22 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (create_header): log the content of header.
+
+Fri Feb 17 09:44:55 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/transcode-tblgen.rb (import_ucm): don't use \h because the
+	  script should work with ruby 1.8.
+
+	* tool/enc-unicode.rb: ditto.
+
+Fri Feb 17 07:33:29 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enum.c (id_lshift): use constant ID.
+
+Fri Feb 17 07:30:53 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: refactored to split too long conditions.
+
+Fri Feb 17 00:23:25 2012  Tanaka Akira  <akr@fsij.org>
+
+	* test/dbm/test_dbm.rb: fix skip condition for libgdbm 1.8.0 or prior.
+	  reported by Bohuslav Kabrda.
+	  [ruby-core:42685] [ruby-trunk - Bug #6036]
+
+Fri Feb 17 00:04:21 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: check _DB_H_ macro unavailable except
+	  Berkeley DB library.
+
+Thu Feb 16 05:41:35 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* insns.def (splatarray): make new array if flag is set.
+
+	* compile.c (iseq_compile_each): make new array with
+	  splat. [ruby-core:21901][Feature #1125]
+
+Thu Feb 16 00:14:04 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* lib/abbrev.rb (Array#abbrev): add missing '"' in documentation.
+
+Wed Feb 15 22:20:19 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* cont.c (rb_fiber_reset_root_local_storage): add a new function to
+	  restore rb_thread_t::local_storage.
+
+	* cont.c (rb_obj_is_fiber): add a new function to tell finalizer to
+	  prevent fibers from destroy.
+
+	* gc.c (rb_objspace_call_finalizer): don't sweep fibers at finalizing
+	  objspace.
+
+	* internal.h (rb_fiber_reset_root_local_storage, rb_obj_is_fiber):
+	  add prototypes.
+
+	* vm.c (ruby_vm_destruct): reset main thread's local_storage before
+	  free main thread. rb_thread_t::local_storage is replaced by fiber's
+	  local storage when forked from fiber, and it should be already freed
+	  when the fiber was destroyed. [ruby-core:41456] [Bug #5700]
+
+	* test/ruby/test_fiber.rb (test_fork_from_fiber): add test for fork
+	  from fiber.
+
+Wed Feb 15 19:57:02 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/fiddle/closure.c (callback): deal with unsigned integers.
+	  [ruby-core:42458][Bug #5991][Bug #6022]
+
+	* ext/fiddle/conversions.c (value_to_generic, generic_to_value):
+	  ditto.
+
+	* ext/fiddle/closure.c (callback): same as r34506.
+
+Wed Feb 15 17:41:31 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* io.c (io_strsetbuf): call rb_str_modify to make str independent
+	  before calling rb_str_set_len for r34580.
+
+Wed Feb 15 12:30:10 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/zlib/zlib.c (Init_zlib):  Added Zlib::TEXT and note that
+	  Zlib::ASCII is deprecated in zlib 1.2.3 and newer.
+
+Wed Feb 15 12:24:40 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/zlib/zlib.c:  Move constant descriptions to constants.  Remove
+	  extra comment block at the top of Init_zlib().
+
+Wed Feb 15 12:30:46 2012  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/ostruct.rb: Create getters and setters after dup.
+	  [Bug #6028] [rubyspecs:0380bcc]
+
+Wed Feb 15 10:59:52 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (HEAP_BITMAP_LIMIT): HEAP_BITMAP_LIMIT is computed on the
+	  basis of HEAP_SIZE because it must covers a whole heap block.
+	  [ruby-trunk - Bug #6006]
+
+Wed Feb 15 09:27:45 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/zlib/zlib.c (Init_zlib):  Added Zlib::FIXED and Zlib::RLE
+	  strategies.
+	* NEWS:  Add note about the new Zlib constants.
+
+Wed Feb 15 09:11:36 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/zlib/zlib.c:  Improve documentation.  [ruby-trunk - Bug #5948]
+
+Wed Feb 15 07:28:54 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* encoding.c (Init_Encoding):  Add IO example of internal and external
+	  encoding.  Fixed a typo in the force_encoding example.  [#5949]
+
+Wed Feb 15 06:58:21 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* encoding.c (Init_Encoding):  Add Encoding documentation.
+	  [ruby-trunk - Bug #5949]
+	* encoding.c (rb_set_default_external):  Fix typo in documentation.
+
+Tue Feb 14 20:22:11 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (CEILDIV): rename to a appropriate name.
+
+Tue Feb 14 18:07:20 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (assign_heap_slot): SEGV happens cause on 64-bit platform
+	  sometime there should be `objs-=2` instead of `objs--`.
+	  [Bug #6006]
+	  patched by Sokolov Yura. https://github.com/ruby/ruby/pull/92
+
+Tue Feb 14 16:00:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (io_setstrbuf): cut down the buffer if longer.
+
+Tue Feb 14 15:06:37 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit/assertions.rb (build_message): skip escaped
+	  question marks.
+
+Tue Feb 14 12:10:04 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* variable.c (autoload_const_set, autoload_require): fix
+	  signatures.
+
+Tue Feb 14 05:23:40 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* process.c (proc_wait):  Change typo "SystemError" to
+	  "SystemCallError".  [ruby-trunk - Bug #5962]
+	* process.c (proc_wait2):  ditto
+
+Tue Feb 14 05:18:24 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* enumerator.c:  Document use of Enumerator.new for creating a lazy
+	  enumeration for filtering/chaining.  [ruby-trunk - Feature #707]
+
+Mon Feb 13 23:01:50 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* vm_method.c (rb_method_boundp):
+	  obj.respond_to?(:a_protected_method) should return false because
+	  calling a protected method may cause NoMethodError if called
+	  from outside the class inheritance tree.  Kernel#respond_to? is
+	  mostly used to test if it is safe to call a method, so the false
+	  positive should be avoided. [ruby-dev:40461] [ruby-dev:41739]
+	  [ruby-dev:41837]
+
+Mon Feb 13 21:52:06 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (HEAP_OBJ_LIMIT, HEAP_BITMAP_LIMIT): HEAP_OBJ_LIMIT used
+	  `sizeof(struct heaps_slot)` while heap is currently allocated
+	  with `struct heaps_header`.
+	  HEAP_BITMAP_LIMIT were calculated from
+	  `HEAP_OBJ_LIMIT/sizeof(uintptr_t)` - one Byte for each object,
+	  not one Bit. [Bug #6006]
+	  patched by Sokolov Yura. https://github.com/ruby/ruby/pull/92
+
+Mon Feb 13 18:30:32 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (io_setstrbuf): defer resizing buffer string until data is
+	  read actually.
+
+Mon Feb 13 10:24:39 2012  Loren Segal  <lsegal@soen.ca>
+
+	* io.c (Init_IO): use directive hack to make ARGF documentable
+	  in other tools.  [ruby-core:42515][Bug #6007]
+
+Sun Feb 12 20:43:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (rb_event_hook_func_t): add argument names.
+
+Sun Feb 12 16:30:23 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* tool/merger.rb (#default_merge_branch): Add support for
+	  Subversion 1.7 which adopted a whole new working directory
+	  structure.
+
+Sun Feb 12 15:14:41 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* benchmark/driver.rb: suppress unused/shadowing variable warnings.
+
+Sun Feb 12 03:14:40 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* vm_eval.c (check_funcall):  Call respond_to? with matching arity for
+	  legacy single-argument implementations.  [ruby-trunk - Bug #6000]
+
+Sat Feb 11 12:04:05 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (defined_expr): guard the whole expression.
+	  [ruby-dev:45021][Bug#5786]
+
+Sat Feb 11 08:34:42 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/zlib/zlib.c (rb_inflate_add_dictionary):  Added
+	  Zlib::Inflate#add_dictionary to allow users to pre-specify
+	  for using during #inflate.  [ruby-trunk - Feature #5937]
+
+Sat Feb 11 08:23:02 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/zlib/zlib.c (do_inflate):  Inflate more data if buffered data
+	  exists.  Allows Zlib::Inflate#set_dictionary to work.
+	  [ruby-trunk - Bug #5929]
+
+Sat Feb 11 06:00:48 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* dir.c (fnmatch): The * needs to be escaped to avoid formatting in
+	  fnmatch comment.
+	  patched by @dalton. https://github.com/ruby/ruby/pull/91
+
+Fri Feb 10 03:41:31 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/parser.c: removed external encoding setter, allow parser
+	  to be reused.
+	* ext/psych/lib/psych/parser.rb: added external encoding setter.
+	* test/psych/test_parser.rb: test parser reuse
+
+Fri Feb 10 01:30:41 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/dl/dl.h (ALIGN_OF): use offsetof().
+
+	* ext/dl/dl.h (DLALIGN): round up at once and get rid of overflow.
+
+Fri Feb 10 00:47:07 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/envutil.rb (assert_no_memory_leak): new assertion to
+	  check memory leak by invoking child ruby process and watch its
+	  memory size.
+
+Thu Feb  9 23:41:44 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* test/pathname/test_pathname.rb (test_binread): add assertion to
+	  check encoding.
+
+Thu Feb  9 16:48:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/dl/dl.c (Init_dl): fix mangled document.
+
+Thu Feb  9 16:10:34 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/memory_status.rb (Memory::Win32): 64bit support.
+
+Thu Feb  9 16:08:55 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/dl/lib/value.rb (DL::ValueUtil.{unsigned_value,signed_value}):
+	  currently pack/unpack does not accept "q!" and "Q!".
+
+Thu Feb  9 16:01:29 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/fiddle/conversions.c (value_to_generic): src is not guaranteed as
+	  a Bignum if the type is LONG_LONG.  it may be a Fixnum if the value
+	  is small.
+
+Thu Feb  9 11:32:36 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/dl/lib/types.rb: Win64 support.
+
+Thu Feb  9 04:12:29 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* test/pathname/test_pathname.rb: not read but binread.
+	  patched by Benoit Daloze, [ruby-core:42440] [Bug #5984]
+
+Wed Feb  8 22:29:59 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_modify_expand): fix memory leak.
+
+Wed Feb  8 14:06:59 2012  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* ext/openssl/ossl_ssl.c: Add SSL constants and allow to unset SSL
+	  option to prevent BEAST attack. See [Bug #5353].
+
+	  In OpenSSL, OP_DONT_INSERT_EMPTY_FRAGMENTS is used to prevent
+	  TLS-CBC-IV vulnerability described at
+	  http://www.openssl.org/~bodo/tls-cbc.txt
+	  It's known issue of TLSv1/SSLv3 but it attracts lots of attention
+	  these days as BEAST attack. (CVE-2011-3389)
+
+	  Until now ossl sets OP_ALL at SSLContext allocation and call
+	  SSL_CTX_set_options at connection.  SSL_CTX_set_options updates the
+	  value by using |= so bits set by OP_ALL cannot be unset afterwards.
+
+	  This commit changes to call SSL_CTX_set_options only 1 time for each
+	  SSLContext. It sets the specified value if SSLContext#options= are
+	  called and sets OP_ALL if not.
+
+	  To help users to unset bits in OP_ALL, this commit also adds several
+	  constant to SSL such as
+	  OpenSSL::SSL::OP_DONT_INSERT_EMPTY_FRAGMENTS.  These constants were
+	  not exposed in Ruby because there's no way to unset bits in OP_ALL
+	  before.
+
+	  Following is an example to enable 0/n split for BEAST prevention.
+
+	    ctx.options = OP_ALL & ~OP_DONT_INSERT_EMPTY_FRAGMENTS
+
+	* test/openssl/test_ssl.rb: Test above option exists.
+
+Wed Feb 8 13:12:02 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_x509name.c: Use the numerical representation of
+	  unrecognized OIDs instead of the sn "UNDEF".
+
+	* test/openssl/test_x509name.rb: Add tests for the fixed behavior.
+
+	  Patch provided by Paul Kehrer, thank you!
+	  [ruby-core:41769] [Feature #5787]
+
+Wed Feb  8 09:49:58 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/merger.rb: don't abort, update first.
+
+Wed Feb 8 09:47:33 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_asn1.c: Call INT2NUM only once for GeneralString.
+	  Thanks to Mantas Mikulenas for noticing and providing a patch!
+	  [ruby-core:42358] [Bug #5972]
+
+Wed Feb 8 09:19:00 2012  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_cipher.c: Add warning about key as IV.
+
+Tue Feb  7 20:08:12 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* error.c (exc_inspect): Fix typo. patch from Trent Ogren
+	  via https://github.com/ruby/ruby/pull/90
+
+Tue Feb  7 19:37:35 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* st.c: refactor packed entries using structs.
+
+Tue Feb  7 14:52:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* st.c (st_update): table can be unpacked in the callback.
+
+	* st.c (st_foreach): should not yield same pair when checking
+	  after unpacking.
+
+Mon Feb  6 21:55:13 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/merger.rb: abort if the working directory is dirty.
+
+	* tool/merger.rb: update the working directory after commit.
+
+Mon Feb  6 00:16:27 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* encoding.c (rb_enc_compatible): return ASCII-8BIT even if 2nd string
+	  is ascii only string. [ruby-core:42354] [Bug #5968]
+
+Fri Feb  3 07:16:47 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/webrick.rb:  Moved proxy rewriting to WEBrick::HTTPProxy.
+	* lib/webrick/httpproxy.rb:  Add examples of creating a proxy server
+	  and response rewriting using HTTPProxy.
+
+Fri Feb  3 06:53:22 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/openssl/ossl_x509store.c:  Add class documentation for
+	  OpenSSL::X509::Store
+
+Thu Feb  2 22:28:13 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* test/net/http/test_https_proxy.rb
+	  (HTTPSProxyTest#test_https_proxy_authentication):
+	  add workaround to avoid to hang up without openssl.
+	  see [ruby-dev:45021][Bug #5786]
+
+	* test/resolv/test_dns.rb (TestResolvDNS#test_query_ipv4_address):
+	  ditto.
+
+Thu Feb  2 21:48:18 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/baseparser.rb: use meaningful names.
+
+Thu Feb  2 21:38:52 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/baseparser.rb, test/rexml/test_namespace.rb:
+	  fix the default xml namespace URI validation.
+	  [ruby-dev:45169] [Bug #5956]
+	  Reported by Miho Hiramatsu. Thanks!!!
+
+Thu Feb  2 17:51:02 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* io.c (argf_next_argv): reset ARGF.next_p on ARGV.replace.
+	  r34409 breaks replacing ARGV.
+	  [ruby-dev:45160] [Bug #5952]
+
+Thu Feb  2 16:21:01 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/net/http/test_http.rb (TestNetHTTPKeepAlive#*): remove debug
+	  output.
+
+Thu Feb  2 01:24:34 2012  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* parse.y (debug_lines, coverage): set file path encoding for coverage
+	  result.  [ruby-dev:44950]
+
+Wed Feb  1 14:38:31 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/tempfile.rb (Tempfile#unlink, Tempfile::Remover#call): Just
+	  call File.unlink and ignore ENOENT because existence check
+	  before unlinking does not help in terms of race condition.
+
+	* lib/tempfile.rb (Tempfile#unlink, Tempfile::Remover#call): My
+	  comment about thread safeness is obsolete.
+
+Wed Feb  1 09:50:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* doc/re.rdoc (Repetition): fix typo.  reported by Ori Avtalion
+	  and patched by Zachary Scott.  [Bug #5947]
+
+Wed Feb  1 06:38:54 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (argf_close): skip stdin, which should be readable again.
+	  [ruby-dev:45160] [Bug #5952]
+
+	* io.c (argf_readlines): reinitialize after all read to be
+	  readable again.
+
+Tue Jan 31 21:27:43 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* configure.in (HEAP_ALIGN_LOG): HEAP_ALIGN_LOG should be page
+	  size in OpenBSD. [ruby-core:42158][Bug #5901]
+
+	* gc.c : avoid to redefine.
+
+Tue Jan 31 14:27:22 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/envutil.rb (EnvUtil.invoke_ruby): yield also child pid
+	  in block form.
+
+Mon Jan 30 19:08:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (vm_call0): should pass block to enumerators.  patched
+	  by Kazuki Tsujimoto.  [ruby-dev:44961][Bug #5731]
+
+	* vm_eval.c (method_missing), vm_insnhelper.c (vm_call_method):
+	  ditto.  patched by satoshi shiba.
+
+Mon Jan 30 12:31:05 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* file.c (append_fspath): need to set the encoding to result always.
+
+Mon Jan 30 10:38:37 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/irb/test_completion.rb: skip if cannot load irb/completion
+	  (maybe readline does not exist).
+
+Sun Jan 29 22:47:19 2012  Yutaka Kanemoto  <kanemoto@ruby-lang.org>
+
+	* tool/config.{guess,sub}: updated to automake-1.11.2.
+
+Sun Jan 29 12:17:56 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/readline/readline.c (readline_attempted_completion_function):
+	  respect encodings.  [Bug #5941]
+
+Sat Jan 28 09:33:33 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* win32/win32.c (rb_w32_read): fix an issue that $stdin.read doesn't
+	  terminate by CTRL-C on Windows.
+	  [ruby-dev:45149] [Bug #5812]
+
+Sat Jan 28 08:18:11 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/ruby/test_thread.rb
+	  (TestThreadGroup#test_thread_timer_and_interrupt): skip exit status
+	  assertion because we cannot get signal status on Windows.
+
+	* win32/win32.c (CreateChild): create process group to receive the
+	  signal by GenerateConsoleCtrlEvent().
+
+	* win32/win32.c (kill): use CTRL_BREAK_EVENT instead of CTRL_C_EVENT
+	  if a process group is specified. CTRL_C_EVENT signal cannot be
+	  generated for process groups for the specification.
+	  [ruby-dev:45149] [Bug #5812]
+
+Sat Jan 28 07:46:03 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* thread_win32.c (rb_w32_wait_events_blocking): use
+	  ruby_thread_from_native() instead of GET_THREAD() because
+	  GET_THREAD() doesn't always return the current thread and
+	  WaitForMultipleObjects() at rb_w32_read() doesn't return by
+	  Thread#kill. This fixes TestQueue#test_thr_kill failure on
+	  Windows.
+
+	* thread_win32.c (rb_w32_wait_events): use ruby_thread_from_native()
+	  instead of GET_THREAD() for consistency with the above change.
+
+	* thread_win32.c (rb_w32_sleep): ditto.
+
+	* thread_win32.c (rb_w32_Sleep): ditto.
+	  [ruby-dev:45149] [Bug #5812]
+
+Sat Jan 28 07:28:48 2012  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/zlib/test_zlib.rb (TestZlibGzipReader#test_reader_wrap): set
+	  binmode explicitly for fixing test error on Windows. This is consistent
+	  with r34243.
+	  [ruby-dev:45149] [Bug #5812]
+
+Sat Jan 28 05:53:34 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/irb/completion.rb (IRB::InputCompletor::CompletionProc):
+	  ignore non-string name modules.  [ruby-core:42244][Bug #5938]
+
+Fri Jan 27 16:31:45 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (HEAP_ALIGN, HEAP_ALIGN_MASK): DRY, let compiler calculate
+	  from HEAP_ALIGN_LOG.
+
+Thu Jan 26 11:03:37 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/matrix.rb:  Clean up extra whitespace in output documentation.
+
+Thu Jan 26 03:24:02 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/io/console/console.c (io_getch): default delegating method
+	  for StringIO.  https://github.com/nobu/io-console/issues/4
+
+	* ext/stringio/stringio.c: moved some methods to hidden modules.
+
+Wed Jan 25 13:27:42 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (rb_file_s_basename): ignore non-ascii extension in
+	  different encoding, which cannot match.
+
+	* file.c (rmext): no extension to strip if empty string.
+
+	* file.c (rb_enc_path_next, rb_enc_path_skip_prefix)
+	  (rb_enc_path_last_separator, rb_enc_path_end)
+	  (ruby_enc_find_basename, ruby_enc_find_extname): encoding-aware
+	  path handling functions.
+
+	* file.c (rb_home_dir, file_expand_path, rb_realpath_internal)
+	  (rb_file_s_basename, rb_file_dirname, rb_file_s_extname)
+	  (rb_file_join): should respect the encodings of arguments than
+	  file system encoding.  [ruby-dev:45145] [Bug #5919]
+
+	* dir.c (check_dirname, ruby_glob0): ditto.
+
+	* ext/pathname/pathname.c (path_sub_ext): ditto.
+
+Tue Jan 24 14:20:42 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm.c (rb_iter_break_value): new function to break a block with
+	  the value.  [ruby-dev:45132] [Feature #5895]
+
+Tue Jan 24 12:58:41 2012  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* object.c (rb_Hash): add Kernel#Hash conversion method like
+	  Array() or Float().  a patch from Run Paint Run Run.  Fix #3131
+
+Tue Jan 24 11:38:05 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/common.rb (URI.encode_www_form_component): initialize on
+	  requiring to support JRuby, which runs parallel multithreads.
+	  [ruby-core:42222] [Bug #5925]
+
+	* lib/uri/common.rb (URI.decode_www_form_component): initialize on
+
+Mon Jan 23 20:33:11 2012  Jason Kay  <geniture@me.com>
+
+	* lib/net/http.rb (Net::HTTP#connect): Writing entire packet at
+	  once to avoid incomplete transmission.  Current code using
+	  writeline was causing sub-optimal conversing with a proxy due to
+	  the connect tunnel request headers being split over multiple
+	  packets. The modification I made allows the connect request to
+	  be written as one packet, avoiding problems and optimizing the
+	  conversation.
+
+	  https://github.com/ruby/ruby/pull/72
+	  [Feature #5460]
+
+Mon Jan 23 17:06:17 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/mailto.rb (URI::MailTo.build): follow Array#to_s change of
+	  Ruby 1.9; use Array#join. [Bug #5840]
+
+Mon Jan 23 16:42:28 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* io.c (extract_binmode): raise an exception if binmode/textmode
+	  is specified with both vmode and opthash.
+	  [ruby-core:42199] [Bug #5918]
+
+Mon Jan 23 16:35:27 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* io.c (rb_io_extract_modeenc): set ASCII-8BIT if binmode is specified
+	  with opthash. [ruby-core:42197] [Bug #5917]
+
+Mon Jan 23 10:08:00 2012  Kenta Murata  <mrkn@cookpad.com>
+
+	* test/cgi/test_cgi_util.rb (test_cgi_escape_preserve_encoding):
+	  add a test for CGI::escape to preserve encoding.
+
+	* test/cgi/test_cgi_util.rb (test_cgi_unescape_preserve_encoding):
+	  add a test for CGI::unescape to preserve encoding.
+
+Mon Jan 23 00:45:34 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/rdoc-mode.el (rdoc-imenu-create-index): Add imenu support
+	  to rdoc-mode.
+
+	* misc/rdoc-mode.el (rdoc-mode): Fix regexp patterns containing
+	  "\s " where CR/LF is not supposed to match.
+
+Sun Jan 22 15:41:26 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (rb_intern3): split to registration check and new
+	  registration.
+
+	* parse.y (rb_intern_str): make interned string shared with the
+	  given string.
+
+	* parse.y (rb_intern3, rb_intern_str): check the coderange first.
+
+Sat Jan 21 22:21:07 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (FIXNUM_P): simple flag should be int.
+
+Sat Jan 21 21:51:19 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* encoding.c (rb_enc_compatible): fix segv on symbols.
+	  [ruby-core:42204] [Bug #5921]
+
+Sat Jan 21 11:43:45 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (dir_chdir, check_dirname): get rid of optimization-out.
+
+Fri Jan 20 20:47:37 2012  Kenta Murata  <mrkn@cookpad.com>
+
+	* lib/cgi/util.rb (CGI.escape): support a string with invalid byte
+	  sequence.  [Bug #5913]
+
+	* test/cgi/test_cgi_util.rb
+	  (test_cgi_escape_with_invalid_byte_sequence): test for the above
+	  change.
+
+Fri Jan 20 17:37:37 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vm.c (vm_exec): remove workaround for LLVM because r34278 fixes it.
+
+	* vm_insnhelper.c (vm_call_cfunc): ditto.
+
+Fri Jan 20 14:31:43 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http.rb (Net::HTTP#transport_request): retry a idempotent
+	  request automatically. [ruby-dev:45030] [Bug #5790]
+	  [ruby-core:41821] [Bug #5813]
+
+	* lib/net/http.rb (Net::HTTP#keep_alive_timeout=): added to specify
+	  the second to reconnect the TCP connection on Keep-Alive.
+	  The default value is 2 second because current servers uses 2 sec.
+	  http://ftp-admin.blogspot.com/2009/09/keepalivetimeout2.html
+
+	* lib/net/http.rb (Net::HTTP#begin_transport): reconnect TCP
+	  connection on keep-alive timeout.
+
+Thu Jan 19 07:53:09 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_strptime.c: moved detector of leftover.
+
+Thu Jan 19 07:10:47 2012  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_parse.c: [ruby-core:42173].
+
+Wed Jan 18 18:11:02 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/rdoc-mode.el (rdoc-mode): Add provide so that requiring
+	  this library succeeds.
+
+Wed Jan 18 18:06:45 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/curses/curses.c (cWindow, cMouseEvent): made typed data.
+
+Wed Jan 18 12:49:15 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: Added support for loading
+	  subclasses of String with ivars
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: Added support for dumping
+	  subclasses of String with ivars
+	* test/psych/test_string.rb: corresponding tests
+
+Wed Jan 18 10:39:47 2012  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: Added ability to load array
+	  subclasses with ivars.
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: Added ability to dump
+	  array subclasses with ivars.
+	* test/psych/test_array.rb: corresponding tests
+
+Tue Jan 17 17:18:41 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (SPT_TYPE): enable as SPT_REUSEARGV on Darwin.
+
+	* missing/setproctitle.c (ruby_init_setproctitle): changed prefix.
+
+Tue Jan 17 12:32:46 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (aligned_malloc, aligned_free): covered missing defined
+	  operators and fixes for cygwin.
+
+Tue Jan 17 10:54:46 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* st.c (do_hash): it's the time to remove cast to unsigned int.
+
+Tue Jan 17 07:30:12 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* st.c (unpack_entries): Fix r34310: on unpacking, the position of
+	  a hash must be do_hash-ed value.
+
+	* st.c (add_packed_direct): ditto.
+
+Mon Jan 16 16:41:53 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/optparse.rb (Regexp): fix incorrect options when casting to
+	  a Regexp, and suppress encoding option warnings.
+	  https://github.com/ruby/ruby/pull/82
+
+Mon Jan 16 11:22:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (rb_chsize): no need to get the current file size.
+
+Mon Jan 16 00:41:33 2012  Sokolov Yura  <funny.falcon@gmail.com>
+
+	* st.c: st use function instead of macro.  In my current
+	  environment (Ubuntu 11.04 32bit gcc-4.5.2) it gives 4%
+	  performance improvement.
+
+	  https://github.com/ruby/ruby/pull/77
+
+Sun Jan 15 14:09:48 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* object.c (rb_inspect): raise the result is not compatible with
+	  the default external encoding. [ruby-core:42095] [Bug #5848]
+	  If the default external encoding is ASCII compatible, the encoding of
+	  inspected result must be compatible with it.
+	  If the default external encoding is ASCII incompatible,
+	  the result must be ASCII only.
+
+Sun Jan 15 13:21:50 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/json/parser/parser.rl (json_string_unescape): workaround fix
+	  for over optimization of GCC 4.7. [ruby-core:42085] [Bug #5888]
+	  http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51862
+
+Sat Jan 14 22:24:09 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/dl/callback/mkcallback.rb (gencallback): suppress unused
+	  variables.
+
+Sat Jan 14 21:56:43 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* iseq.c (iseq_data_to_ary): check line info table boundary.  line
+	  number 0 means no line number info is needed.  [ruby-dev:45130]
+	  [Bug #5894]
+
+Sat Jan 14 18:24:13 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* error.c (exc_equal): clear rb_thread_t::errinfo when ignore
+	  an exception under rb_protect(). [ruby-core:41979] [Bug #5865]
+
+Sat Jan 14 12:02:55 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* sprintf.c (rb_enc_vsprintf): relaxed the restriction.  since the
+	  implementation deeply depends on plain char, so wchar_t based
+	  encodings are not supported.
+
+Sat Jan 14 12:00:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (exc_equal): ignore exceptions during implicit
+	  conversion.  [ruby-core:41979] [Bug #5865]
+
+Sat Jan 14 05:58:54 2012  Eric Hodel  <drbrain@segment7.net>
+
+	* io.c (rb_io_s_read):  Fix formatting of open_args comment.  Reported
+	  by Adam Prescott.
+
+Fri Jan 13 18:41:19 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* sprintf.c (rb_enc_vsprintf): can be used for ASCII compatible
+	  encodings only.
+
+Fri Jan 13 18:29:06 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread.c (rb_mutex_unlock_th): simplified.
+
+	* thread.c (rb_barrier_waiting): fix potential overflows.
+
+Fri Jan 13 17:23:38 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* load.c (load_unlock): update loading table at once.
+
+Fri Jan 13 16:44:45 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (exc_equal): try implicit conversion for delegator.
+	  [ruby-core:41979] [Bug #5865]
+
+Fri Jan 13 03:46:53 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/shellwords.rb (Shellwords#shellescape): shellescape() now
+	  stringifies the given object using to_s.
+
+	* lib/shellwords.rb (Shellwords#shelljoin): shelljoin() accepts
+	  non-string objects in the given array, each of which is
+	  stringified using to_s.
+
+	* lib/shellwords.rb: Fix rdoc markups.
+
+Fri Jan 13 03:38:36 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/shellwords.rb (Shellwords#shellsplit): Fix a bug where
+	  consecutive backslashes in double quotes are all removed except
+	  the one at the tail.
+
+Fri Jan 13 03:28:00 2012  Luis Lavena  <luislavena@gmail.com>
+
+	* ext/socket/extconf.rb (if ipv6): only define _WIN32_WINNT if was not
+	  previously defined. This solve warnings with multiple defines in
+	  command line with GCC 4.6.1
+
+Thu Jan 12 18:44:31 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb: fix r33904 and revert r33905.  initialize global
+	  variables with init_mkmf before initializing constants.
+	  [ruby-dev:45124] [Bug #5879]
+
+Thu Jan 12 13:51:00 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* cont.c (cont_restore_0): prevent optimizing out `sp'. sp is used for
+	  reserving a memory space with ALLOCA_N for restoring machine stack
+	  stored in cont->machine_stack, but clang optimized out it (and
+	  maybe #5851 is also caused by this).
+	  This affected TestContinuation#test_check_localvars.
+
+	* cont.c (cont_restore_1): revert workaround introduced in r32201.
+
+Thu Jan 12 02:14:43 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* object.c: Added examples for Object#is_a? and
+	  Object#instance_of? patched from Manoj Kumar.
+	  [Bug #5880] [ruby-core:42057]
+
+Thu Jan 12 00:57:48 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* lib/mkmf.rb: verbose-mode can use by RM, RMDIRS, etc.
+	  (e.g. make V=1 realclean)
+
+Wed Jan 11 23:40:21 2012  Naohisa Goto  <ngoto@gen-info.osaka-u.ac.jp>
+
+	* string.c (rb_str_concat): set array element after definition
+	  to fix compile error with Fujitsu C Compiler 5.6 on Solaris 10
+	  on Sparc.  [Bug #5878] [ruby-dev:45123]
+
+Wed Jan 11 22:52:51 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* gc.c (ruby_mimmalloc): don't set allocated size to header.
+	  ruby_mimmalloc() doesn't increment allocated_size/allocations and
+	  decrement them in ruby_xfree() cause inconsistency.
+
+	* gc.c (ruby_xfree): don't decrement allocated_size/allocations if
+	  allocated size record is 0.
+
+Wed Jan 11 22:36:43 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* test/readline/test_readline.rb (test_completion_proc_empty_result):
+	  ensure clearance of Readline's line_buffer after the test.
+
+Tue Jan 10 21:57:38 2012  Hiroshi Shirosaki <h.shirosaki@gmail.com>
+
+	* ext/dbm/dbm.c (Init_dbm): fix a build error on mswin32.
+	  use `extern __declspec(dllimport)` for dll link with VC.
+	  [ruby-core:41996] [Bug #5869]
+
+Tue Jan 10 15:31:55 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vm.c (vm_exec): refix r34162; suppress warning and add description.
+
+Tue Jan 10 15:13:58 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/readline/readline.c (readline_attempted_completion_function):
+	  use rb_memerror().
+
+Tue Jan 10 12:49:42 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* gc.c: in fact, i686-linux doesn't need to define _XOPEN_SOURCE 600.
+
+Tue Jan 10 12:44:11 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* gc.c (ruby_mimmalloc): defined for objects need not rb_objspace,
+	  but should return pointer suitable for ruby_xfree;
+	  main vm and main thread.
+	  patched by Sokolov Yura. https://github.com/ruby/ruby/pull/79
+
+	* internal.h: ditto.
+
+	* vm.c (Init_BareVM): use ruby_mimmalloc.
+
+	* ext/dl/cfunc.c: #include <ruby/util.h>.
+
+	* ext/syslog/syslog.c: use xfree because it is allocated by
+	  ruby_strdup.
+
+Tue Jan 10 12:13:56 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* ext/readline/readline.c (readline_attempted_completion_function):
+	  fix compile error.
+
+Tue Jan 10 10:41:11 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/readline/readline.c (readline_attempted_completion_function):
+	  empty completion result does not mean memory error.
+
+Tue Jan 10 02:19:22 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* test/ruby/test_io.rb (test_autoclose_true_closed_by_finalizer,
+	  test_autoclose_true_closed_by_finalizer): skip if IO objects are
+	  not recycled yet. [ruby-dev:45098] [Bug #5850]
+
+Tue Jan 10 00:41:28 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* lib/tempfile.rb (Tempfile#_close): clear @tempfile and @data[1] even
+	  when exception is raised at @tempfile.close. [ruby-dev:45113]
+
+	* lib/tempfile.rb (Tempfile#unlink): fix a typo.
+
+Tue Jan 10 00:32:17 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* gc.c (run_finalizer): clear rb_thread_t::errinfo when ignore
+	  an exception under rb_protect(). [ruby-dev:45113]
+
+Mon Jan  9 23:37:43 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* ext/readline/readline.c (readline_attempted_completion_function):
+	  fix typos.
+
+Mon Jan  9 20:55:34 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c : don't embed struct heaps_slot to a heap block because it
+	  can causes copy-on-write of memory page on heap block when its
+	  free_next is rewritten.
+
+Mon Jan  9 20:26:33 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/pathname/pathname.c (path_entries): add document suggested by
+	  the thread [ruby-core:41959] [Bug #5859].
+
+Mon Jan  9 20:14:13 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/lib/socket.rb (family_addrinfo): don't require protocol
+	  equality.  For example, protocol 0 and IPPROTO_TCP is not problem
+	  for TCP.
+
+Mon Jan  9 20:08:52 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/lib/socket.rb (family_addrinfo): return the given
+	  addrinfo object.
+	  Patch by Ippei Obayashi.  [ruby-dev:45095] [Bug #5845]
+
+Mon Jan  9 19:40:20 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/zlib/test_zlib.rb (TestZlibGzipWriter#test_writer_wrap): set
+	  binmode explicitly.
+
+Mon Jan  9 14:42:41 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c: free_slots is changed Singly linked list. clear
+	  free_slots before sweep.
+
+Mon Jan  9 07:46:17 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* gc.c: i686-linux needs to define _XOPEN_SOURCE 600 for posix_memalign.
+
+Mon Jan  9 04:24:59 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* gc.c (rb_objspace_free): global_List is allocated with xmalloc.
+	  patched by Sokolov Yura.  https://github.com/ruby/ruby/pull/78
+
+	* dln_find.c: remove useless replacement of free.
+
+	* ext/readline/readline.c (readline_attempted_completion_function):
+	  strings for readline must allocated with malloc.
+
+	* process.c (run_exec_dup2): use free; see also r20950.
+
+	* re.c (onig_new_with_source): use malloc for oniguruma.
+
+	* vm.c (ruby_vm_destruct): use free for VMs.
+
+	* vm.c (thread_free): use free for threads.
+
+Mon Jan  9 04:24:59 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* dln_find.c: remove useless replacement of free.
+
+	* ext/readline/readline.c (filename_completion_proc_call):
+	  matches should use xfree.
+
+	* ext/readline/readline.c (username_completion_proc_call): ditto.
+
+Mon Jan  9 01:12:35 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* numeric.c (rb_enc_uint_char): raise RangeError when added codepoint
+	  is invalid. [Feature #5855] [Bug #5863] [Bug #5864]
+
+	* string.c (rb_str_concat): ditto.
+
+	* string.c (rb_str_concat): set encoding as ASCII-8BIT when the string
+	  is US-ASCII and the argument is an integer greater than 127.
+
+	* regenc.c (onigenc_mb2_code_to_mbclen): rearrange error code.
+
+	* enc/euc_jp.c (code_to_mbclen): ditto.
+
+	* enc/shift_jis.c (code_to_mbclen): ditto.
+
+Sun Jan  8 20:31:45 2012  Narihiro Nakamura  <narihiro@netlab.jp>
+
+	* gc.c : consider header bytes which are used by malloc.
+
+Sun Jan  8 11:54:43 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (aligned_free): support MinGW. Patch by Hiroshi Shirosaki.
+
+Sun Jan  8 11:43:05 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (slot_sweep): add a assertion instead of a debug print.
+
+Sun Jan  8 01:18:19 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* test/-ext-/old_thread_select/test_old_thread_select.rb:
+	  avoid platform bug. [Bug #5858] [ruby-dev:45108]
+
+Sun Jan  8 00:46:34 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* gc.c: get rid of implicit narrowing conversion.
+
+Sun Jan  8 00:10:10 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: check posix_memalign(3) and memalign(3).
+
+	* gc.c (aligned_malloc): use configure's result instead of
+	  _POSIX_C_SOURCE and _XOPEN_SOURCE because they can't be used
+	  to check availability at least on FreeBSD.
+
+Sat Jan  7 22:25:50 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c: use Bitmap Marking algorithm to avoid copy-on-write of
+	  memory pages. See [ruby-dev:45085] [Feature #5839]
+	  [ruby-core:41916].
+
+	* include/ruby/ruby.h : FL_MARK rename to FL_RESERVED1.
+
+	* node.h : ditto.
+
+	* debug.c : ditto.
+
+	* object.c (rb_obj_clone): FL_MARK move to a bitmap.
+
+	* class.c (rb_singleton_class_clone): ditto.
+
+Sat Jan  7 00:47:07 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* configure.in: always define CANONICALIZATION_FOR_MATHN.
+	  [ruby-dev:45100] [Bug #5852]
+
+Fri Jan  6 23:11:20 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* include/ruby/version.h: RUBY_API_VERSION 2.0.0
+
+Fri Jan  6 12:24:11 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* object.c (rb_inspect): raises Encoding::CompatibilityError if the
+	  result is incompatible with the default external encoding.
+	  [ruby-core:41931] [Bug #5848]
+
+Thu Jan  5 15:26:15 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (check_valid_dir): strict checking of root.
+	  GetDriveType() succeeds with non root directory as the argument,
+	  even if MSDN says that the API needs the root directory.
+	  this patch fixes a failure of test/ruby/test_file_exhaustive.rb.
+
+Thu Jan  5 12:15:55 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* file.c (rb_file_join): separator is appended by array length - 1
+	  times. patched by Benoit Daloze [ruby-core:41901] [Bug #5841]
+
+Thu Jan  5 11:47:54 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/common.rb (URI::Parser#initialize_regexp):
+	  use \A \z instead of ^ $. [Bug #5843]
+
+Wed Jan  4 17:55:53 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* array.c (rb_ary_sample): add example for Array#sample
+	  based on patch from https://github.com/ruby/ruby/pull/74
+
+Wed Jan  4 14:24:33 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (str_nth_len): count ascii-only run at the end.  this
+	  bug appears only when single-byte-optimization is disabled due
+	  to unknown coderange.  [ruby-core:41896] [Bug #5836]
+
+Wed Jan  4 11:32:07 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (check_valid_dir): special case for a root directory.
+	  Reported by Masateru OKAMOTO at [Bug #5819].
+
+Wed Jan  4 00:19:54 2012  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/baseparser.rb: use private instead of _xxx
+	  method name. This is Ruby code not Python code.
+	  refs #5696
+
+Tue Jan  3 23:57:37 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* lib/rexml/parsers/baseparser.rb: rexml BaseParser uses
+	  instance_eval unnecessarily on listener add.
+	  patch from Charles Nutter. [Bug #5696] [ruby-core:41437]
+
+Tue Jan  3 20:44:13 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* README: add comment for Git user. patch from Arun Agrawal.
+	* README.ja: ditto.
+
+Tue Jan  3 15:58:22 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* thread.c: changed documentation for "thread-local" variables.
+	  patch from Julien Ammous.
+
+Tue Jan  3 15:50:12 2012  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* process.c: Fix typo. patch from Aviv Ben-Yosef.
+
+Tue Jan  3 13:43:37 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* tool/merger.rb: allow r0123 style revision number.
+
+Tue Jan  3 11:17:55 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* tool/merger.rb (#version_up): version.h date should be Japanese
+	  locale date.
+
+Mon Jan  2 22:08:00 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* tool/file2lastrev.rb (VCS::detect): Add support for Subversion
+	  1.7 which adopted a whole new working directory structure.
+
+	* tool/file2lastrev.rb (VCS::detect): Simply use .each instead of
+	  .sort.reverse_each which looks too arbitrary.  If you want SVN
+	  to be tried first, then you just have to register it first as it
+	  is right now.
+
+Mon Jan  2 20:53:36 2012  Tanaka Akira  <akr@fsij.org>
+
+	* lib/securerandom.rb (random_bytes): use IO#read instead of
+	  IO#readpartial to make the intent more clear.
+
+Mon Jan  2 15:26:39 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* test/ruby/test_object.rb (test_send_with_block): add a normal case.
+
+Mon Jan  2 15:18:54 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* test/ruby/test_object.rb (test_send_with_block): moved from
+	  bootstraptest/test_flow.rb.
+
+Mon Jan  2 15:10:11 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* lib/test/unit/parallel.rb: use pack("m0") instead of
+	  pack("m").gsub("\n","").
+	* lib/test/unit.rb (Test::Unit::Runner::Worker#run): ditto.
+
+Mon Jan  2 15:05:09 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* lib/test/unit.rb (Test::Unit::Runner::Worker#run): use
+	  File.basename with suffix instead of gsub.
+
+Mon Jan  2 14:55:28 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* lib/test/unit.rb (Test::Unit::Runner#_run_parallel): find may
+	  return nil and nil can not dup.
+
+Sun Jan  1 12:23:10 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/shellwords.rb (Shellwords#shellescape): Drop the //n flag
+	  that only causes warnings with no real effect.  [Bug #5637]
+
+Sat Dec 31 06:28:37 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* thread.c (rb_barrier_waiting): save the number of waiting threads
+	  in RBASIC()->flags. [ruby-dev:45002] [Bug #5768]
+
+	* thread.c (rb_barrier_wait): increment and decrement around
+	  rb_mutex_lock, and use rb_barrier_waiting().
+
+	* thread.c (rb_barrier_release): use rb_barrier_waiting().
+
+	* thread.c (rb_barrier_destroy): ditto.
+
+Mon Dec 26 17:20:10 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vm.c (vm_exec): add guard to prevent optimization for LLVM clang.
+
+Fri Dec 30 17:01:12 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* vm_eval.c (rb_f_send): fix obj.send() documentation issue.
+	 [Bug #5125] [ruby-core:38633]
+
+Thu Dec 29 22:36:16 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* lib/test/unit.rb (Test::Unit::Runner::Worker#_run_parallels): fix
+	  premature exit when all workers' status are :ready or :prepare.
+	  [ruby-dev:45061] [Bug #5822]
+
+Thu Dec 29 01:51:13 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* include/ruby/ruby.h: fix #error pragma. LLP64 platform is supported.
+
+	* include/ruby/st.h: ditto.
+
+Wed Dec 28 11:22:45 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/fileutils.rb (FileUtils::Entry_#entries): use utility method
+	  instead of typoed regexp.  [ruby-core:41829] [Bug #5817]
+
+Wed Dec 28 02:08:04 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* vm_insnhelper.c (unknown_keyword_error): add GC guard to prevent
+	  intermediate object from GC.
+
+Tue Dec 27 22:34:54 2011  Shota Fukumori  <sorah@tubusu.net>
+
+	* lib/test/unit.rb (Worker#close): "closing IO if IO is closed"
+	  should be "closing IO if IO isn't closed"
+
+Tue Dec 27 22:04:27 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* st.c (st_update): new function to lookup the given key and
+	  update the value.  [ruby-dev:44998]
+
+Tue Dec 27 21:17:33 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* node.h (rb_args_info): change pre_args_num and post_args_num as
+	  int, to match with rb_iseq_t.
+
+	* parse.y (new_args_gen): check overflow.
+
+Mon Dec 26 22:38:35 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* vm_insnhelper.c (unknown_keyword_error): make it kind a error
+	  message when unknown keyword is given.  It require more work.
+	  See [ruby-core:40518] and [ruby-core:40541] in detail.
+
+Mon Dec 26 22:31:07 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* vm_core.h (struct rb_iseq_struct), compile.c (iseq_set_arguments),
+	  iseq.c (rb_iseq_parameters), vm_insnhelper.c
+	  (vm_callee_setup_arg_complex): support Method#parameters for keyword
+	  arguments.  The provisional spec is what Benoit Daloze proposed.
+	  [ruby-core:40541]
+
+	* test/ruby/test_keyword.rb: add a test for above.
+
+Mon Dec 26 22:15:27 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* vm_core.h (struct rb_iseq_struct), compile.c (iseq_set_arguments,
+	  iseq_compile_each), vm_insnhelper.c (vm_callee_setup_arg_complex):
+	  implement keyword arguments.  See [ruby-core:40290]
+	  The feature is promised to be included in 2.0, but the detail spec
+	  is still under discussion; this commit is a springboard for further
+	  discussion.  Please try it and give us feedback.
+	  This commit includes fixes for some problems reported by Benoit
+	  Daloze <eregontp AT gmail.com> [ruby-core:40518] and Marc-Andre
+	  Lafortune <ruby-core-mailing-list AT marc-andre.ca>
+	  [ruby-core:41772].
+
+	* iseq.c (iseq_free, prepare_iseq_build): bookkeeping.
+
+	* test/ruby/test_keyword.rb: add tests for keyword arguments.
+
+	* test/ripper/dummyparser.rb (class DummyParser): temporal fix for
+	  ripper test.
+
+Mon Dec 26 22:00:17 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* node.h, node.c, parse.y: implement a parser part for keyword
+	  arguments.
+	  This is a preparation for keyword argument (see [ruby-core:40290]).
+
+	* gc.c (gc_mark_children): bookkeeping.
+
+Mon Dec 26 21:03:18 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* node.h, parse.y (new_args_gen), compile.c (iseq_set_arguments): use
+	  struct rb_args_info instead of NODEs.
+	  This is a preparation for keyword argument (see [ruby-core:40290]).
+
+	* node.c (dump_node), gc.c (gc_mark_children, obj_free): bookkeeping.
+
+Mon Dec 26 20:59:51 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* node.h, parse.y (lambda, f_larglist): remove NEW_LAMBDA hack.
+	  This is a preparation for keyword argument (see [ruby-core:40290]).
+
+Mon Dec 26 22:01:19 2011  Hiroshi Shirosaki <h.shirosaki@gmail.com>
+
+	* io.c (rb_sys_fail_path): move the definition.
+	  Move above for using it in set_binary_mode_with_seek_cur().
+
+	* io.c (set_binary_mode_with_seek_cur): fix improper seek cursor.
+	  Seeking file cursor with setting binary mode has possibility to
+	  cause infinite loop. Fixed the bug and refined error handling.
+	  Introduced at r34043.
+
+	  And cleanups as below.
+	  Remove unnecessary parentheses of `fptr`.
+	  Use return value of setmode().
+
+	* test/ruby/test_io_m17n.rb
+	  (TestIO_M17N#test_seek_with_setting_binmode): add a test for above.
+	  [ruby-core:41671] [Bug #5714]
+
+Mon Dec 26 17:01:14 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (LIBRUBY_A): depends on main.o since r33774.
+	  [ruby-core:41786] [Bug #5796]
+
+Mon Dec 26 13:07:08 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_io.rb (TestIO#test_autoclose): Tempfile.new doesn't
+	  accept the block argument.
+
+Mon Dec 26 13:06:52 2011  Shota Fukumori  <sorah@tubusu.net>
+
+	* lib/test/unit.rb: Avoid zombie processes on "--separate" option
+	  added at r34121.
+
+Mon Dec 26 04:01:23 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_cipher.c: Update and complete documentation.
+
+Sun Dec 25 23:16:11 2011  Shota Fukumori  <sorah@tubusu.net>
+
+	* test/testunit/test_parallel.rb (test_separate): Test for "--separate"
+	  option (r34121)
+
+Sun Dec 25 22:39:49 2011  Shota Fukumori  <sorah@tubusu.net>
+
+	* lib/test/unit.rb (_run_parallel):
+	  New option "--separate" for test/unit; when running tests with this
+	  option, a job process will be restarted after one test file has done.
+	  This means all test files will run with separated process.
+
+	* lib/test/unit/parallel.rb: Fix for above. Now parallel.rb puts
+	  "ready!" for first ready, "ready" for afters.
+
+Sun Dec 25 00:02:15 2011  Luis Lavena  <luislavena@gmail.com>
+
+	* configure.in: change --with-ntver to --with-winnt-ver to be more
+	  descriptive in the context. [ruby-core:41794]
+
+Sat Dec 24 23:25:15 2011  Luis Lavena  <luislavena@gmail.com>
+
+	* configure.in: add --with-ntver option to match win32/configure.bat
+	  functionality. Set 0x0501 as default. [ruby-core:35010]
+	  [ruby-core:35035]
+
+Sat Dec 24 12:38:53 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (proc_call): get rid of optimization-out by clang.
+
+	* proc.c (rb_proc_call, rb_proc_call_with_block): ditto.
+
+Sat Dec 24 10:56:32 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/readline/readline.c (readline_readline): check if outstream
+	  is closed to get rid of a bug of readline 6.  [ruby-dev:45043]
+	  [Bug #5803]
+
+Sat Dec 24 06:59:49 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/readline/test_readline.rb (test_line_buffer__point): use
+	  lambda not to exit entire method by "return".  or "next" for
+	  proc.  [ruby-dev:45042] [Bug #5802]
+
+Sat Dec 24 01:20:39 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm_eval.c (send_internal): PASS_PASSED_BLOCK_TH must be placed
+	  just before calling rb_call0.
+
+	* bootstraptest/test_flow.rb: add a test for above.
+
+Sat Dec 24 00:55:16 2011  Tanaka Akira  <akr@fsij.org>
+
+	* lib/tempfile.rb (Tempfile#initialize): warn if a block is given.
+
+Fri Dec 23 16:14:30 2011  TAKAO Kouji  <kouji@takao7.net>
+
+	* ext/readline/readline.c (readline_attempted_completion_function):
+	  in Readline module with GNU Readline 6 case, Readline module
+	  resets completion_append_character to " ", after it executes
+	  completion. So, Readline module stores
+	  completion_append_character, and Readline module always sets it
+	  after Readline module executes completion. [ruby-dev:43456]
+	  [Feature #4635]
+
+Fri Dec 23 15:59:05 2011  TAKAO Kouji  <kouji@takao7.net>
+
+	* ext/readline/readline.c (Init_readline): libedit check
+	  rl_getc_function only when rl_initialize() is called, and
+	  using_history() call rl_initialize(). This assignment should be
+	  placed before using_history(). [ruby-core:40641] [Bug #5539]
+
+Fri Dec 23 10:14:47 2011  Tanaka Akira  <akr@fsij.org>
+
+	* test/thread/test_queue.rb (test_thr_kill): show the number of loop
+	  run when the test failed.
+
+Fri Dec 23 09:23:48 2011  Tanaka Akira  <akr@fsij.org>
+
+	* test/test_pty.rb (test_pty_check_default): call PTY.check until
+	  "cat" command is finished.
+
+Fri Dec 23 06:03:00 2011  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* common.mk: add "check succeeded" message.
+
+	* README, README.ja: follow above change.
+
+Fri Dec 23 06:00:39 2011  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* ext/bigdecimal/bigdecimal.h: add satisfy cc-mode comment.
+	* util.c: ditto.
+
+Fri Dec 23 00:08:25 2011  Tanaka Akira  <akr@fsij.org>
+
+	* test/test_pty.rb (test_pty_check_default): "cat" may not terminated
+	  in the 0.1 second.
+
+Thu Dec 22 23:37:25 2011  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_thread.rb (test_condvar_timed_wait): don't test the
+	  maximum sleep time.  Ruby is not a real-time system.
+
+Thu Dec 22 22:37:45 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* thread_pthread.c (ping_signal_thread_list): remove return value.
+	* thread_pthread.c (check_signal_thread_list): add a new function to
+	  check if signal thread list is empty.
+	* thread_pthread.c (thread_timer): check signal thread list after
+	  timer_thread_function(). main thread might be added into signal thread
+	  list during timer_thread_function().
+
+Thu Dec 22 00:40:24 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* ext/bigdecimal/bigdecimal.c (VpMult, VpCtoV, VpSqrt): remove assigned
+	  but unused variables.
+
+Wed Dec 21 18:28:22 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* common.mk (newline.c, miniprelude.c): revert r33949 because the change
+	  broke mswin build, and the changer said no reason about the change.
+	  [ruby-dev:45016] [Bug #5783]
+
+Wed Dec 21 12:35:24 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_s_allocate): follow
+	  Allocation Framework.  [Bug #5775]
+
+Wed Dec 21 02:25:36 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/emitter.c: fixing clang warnings. Thanks Joey!
+
+Wed Dec 21 01:06:00 2011  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* ext/bigdecimal/README: Update redmine.ruby-lang.org to bugs.ruby-lang.org
+	* ext/socket/ancdata.c: ditto
+	* test/-ext-/wait_for_single_fd/test_wait_for_single_fd.rb: ditto
+	* test/syck/test_yaml.rb: ditto
+	* doc/ChangeLog-1.9.3: ditto
+
+Tue Dec 20 23:50:12 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* PStore content update perf optimization. Patch by Masaki Matsushita.
+	  See #5248.
+
+	* lib/pstore.rb (save_data):
+
+	  * Delete inadequate Marshal check.
+
+	  * Deferred file truncation: when writing the new content, truncate
+	    the saved file to the data size after writing the data, instead of
+	    truncating whole bytes before writing data.
+
+	  * Deferred MD5 calculation: when comparing MD5 hash to check the
+	    content modification, calculate MD5 hash of new data iif the
+	    content length is differ from the old one.
+
+	  * Compare content size with String#bytesize instead of String#size.
+
+Tue Dec 20 21:00:30 2011  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: uses to_integer instead.
+	* test/date/test_switch_hitter.rb: added a test.
+
+Tue Dec 20 15:04:18 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* Make sure to clear $! when ignoring an exception
+
+	* ext/openssl/ossl.c (ossl_pem_passwd_cb0, ossl_verify_cb):
+	  pem_passwd_cb and verify_cb ignores the exception raised in a
+	  callback proc so it should clear $! for subsequent execution.
+
+	  That's said, both subsequent processes for pem_passwd_cb and
+	  verify_cb raises another exception before leaking $! to Ruby world.
+	  We cannot test this fix in Ruby land.
+
+	* test/openssl/test_pkey_rsa.rb
+	  (test_read_private_key_pem_pw_exception): Test for pem_passwd_cb +
+	  exception.
+
+Tue Dec 20 11:49:13 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/date/test_date_base.rb (test_jd): tests for
+	  [ruby-dev:45008].
+
+Tue Dec 20 10:20:48 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/date/date_core.c (wholenum): fix the type of the return value.
+
+Tue Dec 20 05:03:24 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* README.ja:  Update redmine.ruby-lang.org to bugs.ruby-lang.org
+	* README:  ditto
+	* common.mk:  ditto
+	* man/erb.1:  ditto
+	* man/irb.1:  ditto
+	* man/ri.1:  ditto
+	* man/ruby.1:  ditto
+	* sparc.c:  ditto
+	* tool/install-sh:  ditto
+
+Tue Dec 20 02:15:18 2011  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c:  [ruby-dev:45008].
+
+Sun Dec 18 18:52:37 2011  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* vm.c (vm_define_method): improve guard of iseq from GC.  Fix
+	  failure or segmentation fault in test_singleton_method(TestGc)
+	  on sparc Solaris10 compiled with Oracle Solaris Studio 12.2.
+	  [Bug #5762] [ruby-dev:45000] [Bug #4178]
+
+Sun Dec 18 14:34:31 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/bigdecimal/bigdecimal.c (Init_bigdecimal): does not follow
+	  allocation framework right now.  [ruby-core:41710] [Bug #5773]
+
+Sun Dec 18 12:42:48 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: BigDecimals can be restored
+	  from YAML.
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: BigDecimals can be dumped
+	  to YAML.
+	* test/psych/test_numeric.rb: tests for BigDecimal serialization
+
+Sun Dec 18 12:03:13 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/scalar_scanner.rb: Strings that look like dates
+	  should be treated as strings and not dates.
+
+	* test/psych/test_scalar_scanner.rb: corresponding tests.
+
+Sun Dec 18 09:43:21 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* test/thread/test_queue.rb (test_thr_kill): extend timeout.
+	  this test takes a long time at slow machine.
+
+Sun Dec 18 09:36:51 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* test/ruby/envutil.rb (invoke_ruby): remove :timeout option before
+	  pass it to Kernel#spawn.
+
+Fri Dec 16 17:18:38 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* README, README.ja: 'make check' is preferable to 'make test'.
+
+Thu Dec 15 23:16:13 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* error.c (builtin_type_name): don't return pointer to the buffer of
+	  temporary String object.
+
+Thu Dec 15 17:56:58 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (argf_type): make typed data.
+
+Thu Dec 15 17:40:28 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (rb_check_type): fix typo.
+
+Thu Dec 15 14:48:35 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/strscan/strscan.c: use typed data with
+	  onig_region_memsize().
+
+Thu Dec 15 14:33:33 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (rb_check_typeddata): refine error message with
+	  including expected struct name.
+
+Thu Dec 15 13:15:51 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* regcomp.c (onig_region_memsize): implemented for memsize_of().
+
+	* ext/objspace/objspace.c (memsize_of): use it.
+
+Thu Dec 15 10:44:54 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_reject_bang, rb_ary_delete_if): update rdoc.
+	  documentation from Thomas Leitner <t_leitner AT gmx.at> in
+	  [ruby-core:41616].  [Bug #5752]
+
+Thu Dec 15 10:10:43 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/test_require.rb (test_race_exception): get rid of
+	  not-guaranteed timing issue.  [ruby-core:41655] [Bug #5754]
+
+Wed Dec 14 21:58:42 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_io_m17n.rb
+	  (TestIO_M17N#test_{read_with_binmode_and_get[cs]}): only for Windows.
+
+Wed Dec 14 19:57:23 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* common.mk,Makefile.in,win32/Makefile.sub (ECHO1): move platform
+	  specific hack from common.mk to Makefile.in (and win32/Makefile.sub).
+	  [Bug #5711]
+
+	* lib/mkmf.rb: we can generate Makefile as we like.
+
+Wed Dec 14 19:22:33 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c, include/ruby/win32.h (rb_w32_fd_is_text): new function.
+
+	* win32/win32.c (init_stdhandle): set default mode of stdin as binmode.
+
+	* io.c (set_binary_mode_with_seek_cur): new function to replace
+	  SET_BINARY_MODE_WITH_SEEK_CUR macro.  now returns previous mode of the
+	  fd and take care of LF in rbuf.
+
+	* io.c (do_writeconv): set text mode when needed.
+
+	* io.c (io_read): need to change the mode of the IO to binmode
+	  temporally when the length for IO#read, because IO#read with length
+	  must behave so.
+
+	* test/ruby/test_io_m17n.rb (TestIO_M17N#test_{read_with_length,
+	  read_with_length_binmode,get[cs]_and_read_with_binmode,
+	  read_with_binmode_and_get[cs],read_write_with_binmode}): tests for
+	  above changes.
+
+	all patches are written by Hiroshi Shirosaki. [ruby-core:41496]
+	[Feature #5714]
+
+Wed Dec 14 15:28:31 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* transcode.c (str_encode): about the extension of :fallback
+	  option since 1.9.3.
+
+Wed Dec 14 12:19:59 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* load.c (load_unlock): release loading barrier and then remove it
+	  from loading_table if it is not in-use.  [Bug #5754]
+
+	* thread.c (rb_barrier_release, rb_barrier_destroy): return
+	  whether any other threads are waiting on it.
+
+Wed Dec 14 11:23:45 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* thread_pthread.c (ubf_select): call rb_thread_wakeup_timer_thread()
+	  only when it is not timer_thread. [Bug #5757] [ruby-dev:44985]
+	  patched by Tomoyuki Chikanaga.
+
+Wed Dec 14 10:20:08 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* load.c (load_lock): delete the loading barrier if it has been
+	  destroyed.
+
+	* thread.c (rb_barrier_wait): return nil for recursive lock
+	  instead of false, to distinguish it from destroyed barrier.
+
+Wed Dec 14 01:24:55 2011  okkez  <okkez000@gmail.com>
+
+	* thread_pthread.c (rb_thread_create_timer_thread): fix memory
+	  leak. [ruby-dev:44904] [Bug #5688]
+
+Wed Dec 14 00:01:15 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (primary): point method name line.  [ruby-core:40936]
+	  [Bug #5614]
+
+Tue Dec 13 23:43:48 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* error.c (name_err_mesg_to_str): clear rb_thread_t::errinfo when
+	  ignore exception under rb_protect(). [ruby-core:41612] [Bug #5755]
+
+	* test/ruby/test_exception.rb (test_exception_in_name_error_to_str):
+	  add a corresponding test.
+
+Tue Dec 13 16:13:29 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* load.c (load_unlock): all threads requiring one file should
+	  share same loading barrier, so it must be kept alive while those
+	  are waiting on it.  [ruby-core:41618] [Bug #5754]
+
+Tue Dec 13 07:30:14 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* lib/webrick/httpresponse.rb (setup_header): 1xx responses
+	  are allowed to have Keep-Alive connections.
+
+	* test/webrick/test_httpresponse.rb: corresponding test.
+
+Tue Dec 13 07:13:28 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* lib/webrick/httpresponse.rb (setup_header): 204 and 304 responses
+	  are allowed to have a Keep-Alive connection. [ruby-core:41581]
+
+	* test/webrick/test_httpresponse.rb: corresponding test.
+
+Tue Dec 13 06:29:39 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_magic_comment): should pass the proper value.
+	  [ruby-dev:44984][Bug #5753]
+
+Tue Dec 13 05:50:07 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_yield_setup_block_args): splat single
+	  argument if optional arguments are defined not only mandatory or
+	  post arguments.  [ruby-core:41557] [Bug #5730]
+
+Mon Dec 12 22:35:39 2011  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* parse.y (stmt_or_begin): changed the error message for BEGIN not
+	  at toplevel.  [ruby-dev:44963] [Bug #5738]
+
+Mon Dec 12 17:29:01 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* README: Fixed SupportedPlatforms URL in the README.
+	  patched by eMxyzptlk. https://github.com/ruby/ruby/pull/62
+
+Mon Dec 12 17:26:51 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* load.c (rb_feature_p): lazy assigned load_path searched in
+	  loading_table were not expanded, but all features, pushed to
+	  loading table, are expanded.  a patch by Yura Sokolov
+	  <funny.falcon AT gmail.com> in [ruby-core:41545]. [Bug #5727]
+
+Mon Dec 12 15:41:03 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/stringio/stringio.c (strio_truncate): fix typo.  patched by
+	  Nick Howard <ndh AT baroquebobcat.com>.
+	  https://github.com/ruby/ruby/pull/65
+
+Sun Dec 11 12:19:17 2011  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/imap.rb: includes the sequence number of UID in a error
+	  message.  suggested by art lussos.
+	  [ruby-core:41413] [Feature #5692]
+
+Sun Dec 11 11:42:10 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* ext/syslog/syslog.c: fix a typo. [ruby-core:41585] [Bug #5740]
+
+Sun Dec 11 10:48:16 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (exit_initialize): deal with true and false as well as
+	  Kernel#exit.  [ruby-dev:44951] [Bug #5728]
+
+Sun Dec 11 10:37:47 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_check_to_int): new function to convert a VALUE to
+	  an Integer if possible, but returns nil instead of raising an
+	  exception otherwise.
+
+Sun Dec 11 10:34:39 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (rb_exit_status_code): extract from rb_f_exit_bang and
+	  rb_f_exit.  assume 0 to be success in Kernel#exit! too.
+
+Fri Dec  9 19:24:31 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* enc/trans/iso-8859-16-tbl.rb: add ISO-8859-16 converter.
+
+	* enc/trans/single_byte.trans: ditto.
+
+Fri Dec  9 14:28:40 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* file.c (file_path_convert): don't convert it when the path string is
+	  ascii only. [ruby-core:41556] [Bug #5733]
+	  tests are contributed by nobu.
+
+Fri Dec  9 08:00:15 2011  Luis Lavena  <luislavena@gmail.com>
+
+	* include/ruby/win32.h: undef stat to silence mingw-w64 stat
+	  redefinition warnings (GCC 4.6.3).
+
+Thu Dec  8 23:38:24 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* variable.c (set_const_visibility): clear inline-cache when constant's
+	  visibility is modified. [ruby-dev:44929]
+
+	* test/ruby/test_module.rb (test_private_constants_clear_inlinecache):
+	  add test for it.
+
+Thu Dec  8 23:26:11 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/extmk.rb (extract_makefile): should sort after map, not before
+	  it.  in this case there is no difference, but we should write better
+	  code.  this bad smell was caught by nagachika.
+
+Thu Dec  8 22:31:13 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/extmk.rb (extract_makefile): need to sort the array of current
+	  srcs before comparing to the sorted old srcs.
+	  fixed the problem that the configuring stage of exts were always
+	  run, introduced at r33801.
+
+Thu Dec  8 13:26:24 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/rexml/test_order.rb (OrderTester#test_more_ordering): use
+	  Zlib::GzipReader.open instead of Zlib::GzipReader.new with File.new.
+	  fixed a test error on Windows introduced at r33946.
+
+Thu Dec  8 13:11:26 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_process.rb (TestProcess#test_sete[gu]id): silently
+	  skip if not implemented such functions (such as, on Windows).
+	  fixed test errors on Windows introduced at r33953.
+
+Thu Dec  8 12:57:50 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/socket/extconf.rb: forgotten to define HAVE_SOCKETPAIR for
+	  windows.
+	  fixed test errors on Windows introduced at r33947.
+
+Thu Dec  8 12:11:06 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (RUBY_WERROR_FLAG): append all warning flags which
+	  are enabled to compile, so that printf format modifiers properly
+	  fail.  [ruby-core:41351] [Bug #5679]
+
+Thu Dec  8 07:20:15 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/re.rdoc:  Document difference between match and =~, options with
+	  Regexp.new and global variables.  Patch by Sylvain Daubert.
+	  [Ruby 1.9 - Bug #5709]
+
+Thu Dec  8 06:53:10 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/re.rdoc:  Fix example code to match documentation.  Patch by
+	  Jarno Lamberg.  [Ruby 1.9 - Bug #5624]
+
+Wed Dec  7 19:04:22 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (rpath): fix typo in the help string.  a patch from
+	  Yuji Yamano <yyamano AT kt.rim.or.jp> in [ruby-list:48568].
+
+Wed Dec  7 18:55:56 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm.c (vm_set_top_stack, vm_set_eval_stack): check for stack
+	  overflow with stack_max before push new frame. [ruby-core:41520]
+	  [Bug #5720]
+
+	* vm.c (vm_set_main_stack): no stack overflow chances after
+	  vm_set_eval_stack().
+
+Wed Dec  7 09:58:15 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/bigdecimal/bigdecimal.c:  Document +@, -@, hash, INFINITY, Nan.
+	  Patch by Sylvain Daubert.  [Ruby 1.9 - Feature #5622]
+
+Wed Dec  7 09:48:00 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* io.c (Init_IO):  Mention io/console methods.  [Ruby 1.9 - Bug #5602]
+	* ext/io/console/console.c:  Mention that io/console must be required
+	  similar to lib/time.rb
+
+Wed Dec  7 08:04:31 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb (module Psych): parse and load methods take
+	  an optional file name that is used when raising Psych::SyntaxError
+	  exceptions
+	* ext/psych/lib/psych/syntax_error.rb (module Psych): allow nil file
+	  names and handle nil file names in the exception message
+	* test/psych/test_exception.rb (module Psych): Tests for changes.
+
+Tue Dec  6 18:26:33 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/dbm.c: use db_version() instead of DB_VERSION_STRING to
+	  detect runtime Berkeley DB version.
+	  use dpversion instead of _QDBM_VERSION to detect runtime QDBM
+	  version.
+	  [ruby-dev:44948]
+
+Tue Dec  6 12:30:41 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: detect gdbm_version in libgdbm.
+
+	* ext/dbm/dbm.c: make DBM::VERSION more informative for gdbm, qdbm and
+	  Berkeley DB 1.x.  [ruby-dev:44944]
+
+Tue Dec  6 07:26:37 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* range.c:  Improve documentation for Range.  Patch by Chris Zetter.
+	  [Ruby 1.9 - Bug #5656]
+
+Mon Dec  5 19:08:04 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* regparse.c (PFETCH_READY): separate gcc specific trick.
+
+Mon Dec  5 19:01:59 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (proc_seteuid_m): fix argument.
+
+	* test/ruby/test_process.rb (test_geteuid): fix typo.
+
+	* test/ruby/test_process.rb (test_getegid, test_set[eg]uid): add.
+
+Mon Dec  5 18:56:55 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* bignum.c (big_rshift), compile.c (validate_label,
+	  iseq_build_from_ary_exception), cont.c (cont_capture), dir.c
+	  (dir_open_dir), gc.c (objspace_each_objects), io.c (pipe_open)
+	  (rb_io_advise), parse.y (parser_compile_string)
+	  (rb_parser_compile_file), proc.c (binding_free), process.c
+	  (rb_proc_exec_n, rb_seteuid_core, proc_setegid, rb_setegid_core)
+	  (p_uid_exchange, p_gid_exchange), regparse.c (strdup_with_null),
+	  signal.c (sig_dfl), vm.c (rb_iseq_eval, rb_iseq_eval_main),
+	  vm_insnhelper.c (vm_expandarray): suppress
+	  unused-but-set-variable warnings.
+
+	* class.c (rb_obj_methods), compile.c (iseq_compile_each),
+	  iseq.c(iseq_load, rb_iseq_parameters), pack.c (pack_pack),
+	  regcomp.c (is_not_included, update_string_node_case_fold),
+	  transcode.c (rb_econv_open0, make_replacement),
+	  vm_eval.c (raise_method_missing): remove unused variable.
+
+	* signal.c (reserved_signal_p): static.
+
+Mon Dec  5 14:27:23 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* include/ruby/{subst.h,win32.h}, ext/socket/rubysocket.h: revert
+	  r33876.  [ruby-core:41475] [Bug #5706]
+
+	* ext/socket/extconf.rb: the alternative hack for [Bug #5675].
+
+Mon Dec  5 10:18:45 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/zlib/zlib.c (rb_gzreader_initialize): revert a part of r33937.
+	  1st, to change the mode of an IO is very sensitive problem, so
+	  the maintainer of this library should judge it.
+	  2nd, usually Zlib::GzipReader.new is not called directly.  #initialize
+	  is called via .open, and in the method the I/O is opened in binary
+	  mode, so there is no problem without changing the mode in #initialize.
+
+Sun Dec  4 22:53:12 2011  Tanaka Akira  <akr@fsij.org>
+
+	* lib/tempfile.rb: don't use lock directory.  [ruby-dev:39197]
+
+Sun Dec  4 22:34:43 2011  Tanaka Akira  <akr@fsij.org>
+
+	* lib/tempfile.rb (Tempfile::MAX_TRY): remove unused constant.
+
+Sun Dec  4 12:11:28 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* lib/pp.rb: fix rdoc.
+
+Sun Dec  4 12:03:16 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/delegate.rb (Delegator#methods): Kernel#methods receives
+	  zero or one argument. [ruby-core:37118] [Bug #4882]
+
+Sun Dec  4 10:15:00 2011  Luis Lavena  <luislavena@gmail.com>
+
+	* ext/zlib/zlib.c (rb_gzreader_initialize): use binary mode by default
+	  under Windows. Patch by Hiroshi Shirosaki. [ruby-core:40706]
+	  [Feature #5562]
+
+	* include/ruby/encoding.h (void rb_econv_binmode): define NEWLINE
+	  decorator.
+
+	* io.c (rb_cloexec_fcntl_dupfd): Introduce NEED_READCONV and
+	  NEED_WRITECONV to replace universal newline decorator by CRLF only
+	  when required to improve file reading and writing under Windows.
+	  Patch by Hiroshi Shirosaki. [ruby-core:40706] [Feature #5562]
+	* io.c (do_writeconv): adjust binary mode if required.
+	* io.c (read_all, appendline, swallow, rb_io_getline_1): ditto.
+	* io.c (io_getc, rb_io_each_codepoint, rb_io_ungetc): ditto.
+	* io.c (rb_io_binmode, rb_io_ascii8bit_binmode): ditto.
+	* io.c (rb_io_extract_modeenc, rb_sysopen): ditto.
+	* io.c (pipe_open, prep_stdio, io_encoding_set): ditto.
+	* io.c (rb_io_s_pipe, copy_stream_body): ditto.
+
+	* test/ruby/test_io_m17n.rb (EOT): add test for pipe and stdin in
+	  binary mode.
+
+	* win32/win32.c (init_stdhandle): remove O_BINARY from stdhandle
+	  initialization.
+	* win32/win32.c (rb_w32_write): use FTEXT mode accordingly.
+
+Sat Dec  3 20:49:16 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* variable.c (set_const_visibility): print a warning when no argument
+	  is passwd to Module#private_constant.  [ruby-list:48558]
+
+	* vm_method.c (set_method_visibility): ditto for
+	  Module#private_class_method.
+
+Sat Dec  3 20:43:14 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* variable.c (set_const_visibility): Module#private_constant has
+	  changed the visibility of only the first argument.  Now it changes
+	  all of them.  [ruby-list:48558]
+
+	* test/ruby/test_module.rb: add a test for above.
+
+Sat Dec  3 07:17:29 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* Makefile.in (CFLAGS): append ARCH_FLAG.
+
+	* configure.in (ARCH_FLAG): exclude from CFLAGS.
+
+	* configure.in (UNIVERSAL_INTS): include short int.  fix for
+	  test/mkmf.
+
+Fri Dec  2 15:48:08 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/bigdecimal/bigdecimal.c (VpAllocReal): reduce extra frac.
+
+Fri Dec  2 15:41:24 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: check whether -pie or -Wl,-pie is valid as
+	  LDFLAGS.  [ruby-core:41438] [Bug#5697]
+
+	* configure.in: use $linker_flag for LDFLAGS option which is not
+	  limited to particular platforms.
+
+Thu Dec  1 23:21:58 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* thread_pthread.c (thread_timer): call prctl(PR_SET_NAME) only if
+	  PR_SET_NAME is available.
+
+Thu Dec  1 22:31:16 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (linux_get_maxfd): change local variable name.
+
+Thu Dec  1 16:59:24 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/socket/extconf.rb: add arguments for macro calls.
+	  [ruby-core:41370] [Bug#5681]
+
+Thu Dec  1 16:20:16 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#try_func): fix broken patch at r33834.
+
+Thu Dec  1 14:43:17 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/bigdecimal/bigdecimal.h (Real): suppress false warning from
+	  clang.  [ruby-core:41418] [Bug#5693]
+
+Thu Dec  1 10:31:55 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (LDFLAGS): -fstack-protector is always needed to
+	  link static library created with it.  [ruby-core:41387]
+	  [Bug#5686]
+
+Thu Dec  1 07:03:51 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: add sys/prctl.h test.
+	* thread_pthread.c (thread_timer): call prctl(PR_SET_NAME) to change
+	  thread name. It may help to debug.
+
+Wed Nov 30 23:35:45 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* variable.c (rb_path2class): don't raise NameError when the middle
+	  constant of the path is not defined but defined on toplevel.
+	  [ruby-core:41410] [Bug #5691]
+
+Wed Nov 30 20:02:02 2011  Martin Duerst  <duerst@it.aoyama.ac.jp>
+
+	* transcode.c: Simplified rb_econv_binmode, avoided a warning on cygwin.
+
+Wed Nov 30 08:57:07 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/mkmf.rb:  Use MakeMakefile's rm_f to avoid conflict with Rake or
+	  FileUtils.
+	* test/ruby/test_module.rb:  Hide MakeMakefile's inclusion in Object
+
+Wed Nov 30 09:12:43 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/rdoc/encoding.rb (RDoc::Encoding.read_file): fixup newline chars
+	  on Windows.
+	  see https://github.com/rdoc/rdoc/issues/87
+
+	* test/rdoc/test_rdoc_markup_pre_process.rb
+	  (TestRDocMarkupPreProcess#test_include_file,
+	  TestRDocMarkupPreProcess#test_include_file_encoding_incompatible):
+	  follow above change.
+
+Wed Nov 30 09:09:37 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/parser.c (parse): parse method can take an option file
+	  name for use in exception messages.
+	* test/psych/test_parser.rb: corresponding tests.
+
+Tue Nov 29 09:07:59 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/mkmf.rb:  Fix indentations of constants at end of module.
+	  Document some constants.
+
+Tue Nov 29 09:58:23 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_write_error2): suppress unused variable warning.
+
+Tue Nov 29 07:45:26 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/mkmf.rb:  Wrap comments to 78 columns and clean up formatting.
+
+Tue Nov 29 05:54:18 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/mkmf.rb:  Wrap mkmf.rb in module MakeMakefile to clean up Object
+	  documentation.  [Ruby 1.9 - Feature #5658]
+	* ext/extmk.rb:  Use MakeMakefile::CONFIG instead of Object::CONFIG
+	* test/mkmf/base.rb:  ditto
+
+Tue Nov 29 00:08:57 2011  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* common.mk (INSTRUBY_ARGS): added --mantype to apply mdoc2man.rb
+	  to man pages.  Fixes #5598.
+	  (do-install-nodoc, do-install-local, do-install-man,
+	  dont-install-nodoc, dont-install-local, dont-install-man):
+	  No longer needs --mantype.
+
+	  Reported by Rainer Orth <ro AT cebitec.uni-bielefeld.de>,
+	  patch by George Koehler <xkernigh AT netscape.net>.
+
+Mon Nov 28 22:26:31 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/rake/test_rake_directory_task.rb
+	  (TestRakeDirectoryTask#test_directory_win32): shouldn't create any
+	  file/directory on root directory.  create on @tempdir (= Dir.pwd).
+	  see https://github.com/jimweirich/rake/issues/91
+
+Mon Nov 28 12:57:29 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_write_error2): fwrite() returns ssize_t.
+
+Mon Nov 28 12:47:19 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* parse.y (nodetype, nodeline): static.  these functions are for
+	  debugging, and not intend to be public.
+
+Mon Nov 28 12:37:54 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* gc.c (initial_params): static.  it seems to be forgotten at r33501.
+
+Mon Nov 28 12:32:24 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* include/ruby/win32.h, win32/win32.c (GetCurrentThreadHandle): remove
+	  unused old API.
+
+Mon Nov 28 12:29:20 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/mkexports.rb (Exports#initialize): remove old symbol name.
+
+Mon Nov 28 12:15:28 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/mkexports.rb (Exports#read_substitution): need to read
+	  from subst.h too.  [Bug #5675]
+
+Mon Nov 28 11:46:35 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* io.c (rb_io_flush): release GVL during fsync() on Windows.
+
+Mon Nov 28 11:00:25 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* include/ruby/subst.h: typo of r33876.
+
+Mon Nov 28 10:36:00 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/subst.h: moved Windows specific substitutions from
+	  win32.h.
+
+	* ext/socket/rubysocket.h: include ruby/subst.h.  [Bug #5675]
+
+Mon Nov 28 10:20:58 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/{Makeilfe.sub,win32.c} (FILE_COUNT, FILE_READPTR): move the
+	  definitions from config.h to win32.c.  I dared to have left such
+	  macros, for other future compiler support.
+	  [ruby-core:41313] [Bug #5674]
+
+Mon Nov 28 09:28:30 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_uchmod): typo.  [Bug#5671] [ruby-dev:44898]
+
+	* test/ruby/test_file.rb (TestFile#test_chmod_m17n): test of above bug.
+
+Sun Nov 27 21:25:33 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: added -fno-strict-overflow. it suppress annoying
+	  -Wstrict-overflow warning.
+
+Sun Nov 27 20:58:02 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (rb_write_error2): get rid of warning on linux. fwrite
+	  of glibc is tagged __attribute__ ((__warn_unused_result__))
+	  if _FORTIFY_SOURCE != 0.
+	* vm_dump.c (rb_vm_bugreport): ditto.
+
+Sun Nov 27 19:09:02 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (stack_protector): disable on mingw.  [Bug#5676]
+
+	* Makefile.in (DLDFLAGS): also needs -fstack-protector.
+	  [Bug#5676]
+
+Sun Nov 27 14:13:33 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: add -fstack-protector into XLDFLAGS as well as
+	  XCFLAGS if stack-protector is used.
+
+Sun Nov 27 13:09:25 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: workaround to avoid MacOS X build error.
+	  Maybe autoconf 2.61 is slightly buggy. [ruby-core:41316]
+
+Sun Nov 27 04:57:11 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in (--no-undefined): r33840 breaks FreeBSD and DragonFly
+	  with gcc 4.4 or later. Their environ is in /usr/libexec/ld-elf.so.1,
+	  so it will be false negative.
+
+Sun Nov 27 04:55:45 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http.rb (Net::HTTP::SSL_IVNAMES): rerefix 33701.
+	  SSL_ATTRIBUTES stores names for set_params, they are symbol.
+	  SSL_IVNAMES stores instance variable names.
+
+Sun Nov 27 00:16:07 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (copy_stream_body): use 0666 for permission argument for open.
+	  [ruby-core:40865]
+
+Sat Nov 26 23:01:38 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* test/openssl/test_engine.rb: remove side effect of generic engine
+	  load by explicitly loading software-based "openssl" engine for
+	  all tests.
+
+Sat Nov 26 20:41:48 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http.rb (Net::HTTP.get_response): enable use_ssl
+	  if given URI object is https.
+	  patched by Mark Ferlatte [ruby-core:40665] [Bug #5545]
+
+	* lib/net/http.rb (Net::HTTP.post_form): ditto.
+
+Sat Nov 26 20:01:18 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http.rb (Net::HTTP::SSL_ATTRIBUTES): refix 33701.
+	  store instance variable symbol names.
+
+Sat Nov 26 15:40:25 2011  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* .travis.yml (script): should be ./configure
+
+Sat Nov 26 15:39:18 2011  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* .travis.yml (before_script): wrong name, sorry.
+
+Sat Nov 26 15:31:34 2011  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* .travis.yml (before-script): autoconf required.
+
+Sat Nov 26 15:24:05 2011  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* .travis.yml: Travis enable.
+
+Sat Nov 26 10:47:50 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/extconf.rb: remove checks for available functions.
+	* ext/openssl/missing.h: ditto.
+	  Thanks, Tim Mooney for reporting this!
+	  [Bug #5432] [ruby-core:40088]
+
+Sat Nov 26 10:22:28 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_ssl.c: add comment on where to find implementation
+	  of OpenSSL::SSL::SSLSocket#session.
+
+Sat Nov 26 05:00:25 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (--no-undefined): RUBY_TRY_CFLAGS does nothing for
+	  linker flags.  use RUBY_TRY_LDFLAGS.
+
+Fri Nov 25 11:37:07 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (ioctl_narg_len, linux_iocparm_len): reinstantiate linux
+	  specific narg length calculation.
+	* test/ruby/test_io.rb (test_ioctl_linux2): add new test for old and
+	  unstructured ioctl.
+
+Fri Nov 25 10:39:14 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* Makefile.in (EXTLDFLAGS): export it.
+	* configure.in: add --no-undefined if --enable-shared is specified.
+	  Gentoo enabled this option long time. Also, export EXTLDFALGS.
+
+Fri Nov 25 08:48:35 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: turn on PIE if --enable-shared is not specified.
+
+Fri Nov 25 08:05:07 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: add -fstack-protector. It help to protect us from
+	  stack smashing attack.
+
+Fri Nov 25 08:03:28 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: add -D_FORTIFY_SOURCE=2. It provide some compile
+	  time and runtime check for security.
+
+Fri Nov 25 08:00:23 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* lib/mkmf.rb: get rid of warnings of mkmf.rb if -Wmissing-declarations
+	  and/or -Wold-style-definition warnings if specified.
+	  Patch by Nikolai Weibull. Thank you! [Bug #5459] [ruby-core:40200]
+
+Fri Nov 25 07:46:09 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: add -Wall always.
+
+Thu Nov 24 20:02:40 2011  Tanaka Akira  <akr@fsij.org>
+
+	* test/openssl/test_engine.rb: use IO#reopen to restore stderr.
+
+Thu Nov 24 19:59:56 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_io_reopen): re-initialize buffering mode for stdout and
+	  stderr.
+
+Thu Nov 24 11:12:48 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (rb_io_fsync,rb_io_fdatasync): release GVL during fsync().
+	  fsync() and fdatasync() may take a long time on slow disks and/or
+	  if there is much dirty data.
+	  Patch by Eric Wong. [Feature #5665] [ruby-core:41247]
+
+Thu Nov 24 10:05:02 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* test/openssl/test_engine.rb: Suppress output from 'openssl'
+	  engine's RC4 cipher.
+	  [Bug #5633] [ruby-core:41026]
+
+Thu Nov 24 08:05:02 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_pkey_dsa.c: remove redundant colon from error
+	  message.
+	* ext/openssl/ossl_ssl.c: ditto.
+	* ext/openssl/ossl_pkey_rsa: ditto.
+	  patched by Eric Hodel [Bug #5604] [ruby-core:40896]
+
+Wed Nov 23 20:03:43 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* io.c (ioctl_narg_len): don't use _IOC_SIZE macro on Linux.
+	  On Linux some constants for ioctl(2) doesn't include the size of
+	  its return value and 16bit value; for example FIONREAD 0x541B.
+	  Moreover the manual, ioctl_list(2),  says "Note  that  the  size
+	  bits  are  very unreliable: in lots of cases they are wrong,
+	  either because of buggy macros using sizeof(sizeof(struct)),
+	  or because of legacy values."
+	  So we shouldn't use it.
+
+Tue Nov 22 18:07:32 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (_pioinfo): need to declare _pioinfo() before using
+	  _osfhnd and other macros which uses _pioinfo() internally.
+
+Tue Nov 22 17:49:45 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (_pioinfo): make an inline function.
+
+Tue Nov 22 11:26:08 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+Tue Nov 22 11:33:58 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (dupfd): argument of _osfhnd and so on should not
+	  have side effect.
+
+Tue Nov 22 11:26:08 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* bignum.c (rb_big_divide): refix of r33536. Don't change behavior of Bignum#/.
+	  [ruby-core:40429] [Bug #5490]
+
+Tue Nov 22 10:46:57 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* numeric.c (ruby_float_step): improve floating point calculations.
+	  [ruby-core:35753] [Bug #4576]
+
+	* numeric.c (ruby_float_step): correct the error of floating point
+	  numbers on the excluding case.
+	  patched by Masahiro Tanaka [ruby-core:39608]
+
+	* numeric.c (ruby_float_step): use the end value when the current
+	  value is greater than or equal to the end value.
+	  patched by Akira Tanaka [ruby-core:39612]
+
+Tue Nov 22 06:59:21 2011  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_io.rb (test_fcntl_dupfd): there is no known platform
+	  which don't have F_DUPFD.  [ruby-dev:44874]
+
+Tue Nov 22 04:46:22 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb: remove autoload from psych
+	* ext/psych/lib/psych/json.rb: ditto
+
+Tue Nov 22 00:44:59 2011  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_io.rb (test_fcntl_dupfd): the argument of F_DUPFD is
+	  minimum file descriptor.
+
+Tue Nov 22 00:25:17 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (linux_get_maxfd): get rid of a warning.
+
+Mon Nov 21 23:39:14 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (linux_get_maxfd): new function to find maximum fd on Linux.
+	  (rb_close_before_exec): use linux_get_maxfd.
+
+Mon Nov 21 06:16:24 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* cont.c (fiber_switch): ignore fiber context switch
+	  because destination fiber is same as current fiber.
+	  With out this, it may segv on FreeBSD 9.
+	  patched by Koichi Sasada.
+
+Sun Nov 20 23:22:42 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/extmk.rb (extract_makefile, extmake): regenerate makefiles
+	  if globbed source file list is changed.
+
+	* lib/mkmf.rb (create_makefile): store ORIG_SRCS.
+
+Sun Nov 20 22:43:03 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* enc/unicode.c (PROPERTY_NAME_MAX_SIZE): +1.
+	  reported by Ken Takata. [ruby-dev:44894][Bug #5652]
+
+Sun Nov 20 11:01:28 2011  Tanaka Akira  <akr@fsij.org>
+
+	* lib/set.rb (SortedSet.setup): remove old_init after initialize
+	  method is redefined.  The remove before redefinition makes the
+	  warning prevention fragile.  [ruby-dev:44892]
+
+Sun Nov 20 04:01:45 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* Makefile.in (enc/unicode/name2ctype.h): remove duplicated
+	  ifdefs.
+
+Sat Nov 19 19:31:47 2011  Tanaka Akira  <akr@fsij.org>
+
+	* time.c (TIME_COPY_GMT): copy vtm.utc_offset and vtm.zone too.
+	  patch by Tomoyuki Chikanaga.
+	  [ruby-dev:44827] [Bug #5586]
+
+Sat Nov 19 16:36:57 2011  Tanaka Akira  <akr@fsij.org>
+
+	* test/net/http/test_http.rb: remove temporally files in ensure clause.
+
+Sat Nov 19 08:18:41 2011  Tanaka Akira  <akr@fsij.org>
+
+	* test/net/http/test_http.rb: remove temporally files.
+
+Fri Nov 18 17:18:16 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/io/console/console.c (console_raw, console_set_raw)
+	  (console_getch): optional parameters.  [EXPERIMENTAL]
+
+Fri Nov 18 16:12:11 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/io/console/console.c (console_cooked, console_set_cooked):
+	  new methods to reset cooked mode.  [EXPERIMENTAL]
+
+Fri Nov 18 13:20:26 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/unit/assertions.rb (MINI_DIR): quick dirty hack to get rid of
+	  warnings when using assert/assert_respond_to.
+
+Fri Nov 18 13:03:38 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* io.c (rb_cloexec_open): set O_NOINHERIT instead of O_CLOEXEC if it is
+	  available (for Windows).
+
+	* win32/win32.c (fcntl): on F_DUPFD, determine the inheritance of the
+	  new handle by O_NOINHERIT flag of original fd.
+
+Fri Nov 18 08:00:41 2011  Ryan Davis  <ryand-ruby@zenspider.com>
+
+	* lib/minitest/*: Imported minitest 2.8.1 (r6750)
+	* test/minitest/*: ditto
+	* configure.in: Improved gcc-llvm error message to help people migrate.
+
+Thu Nov 17 20:43:34 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: revert a part of the patch in [ruby-dev:41531].
+	  don't use db.h with other headers.  [ruby-dev:44884].
+
+Thu Nov 17 20:23:03 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* benchmark/bm_io_select[23].rb: use Process::RLIMIT_NOFILE only when
+	  it is defined.  if it is not defined, assume 64 as the max of fds.
+
+Thu Nov 17 10:36:46 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb (load_file): make sure opened yaml files are
+	  also closed. [ruby-core:41088]
+
+Wed Nov 16 18:13:52 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* Makefile.in (LIBRUBY_A): check if generated linked library is
+	  valid for extconf.
+
+Wed Nov 16 13:51:40 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* bignum.c (rb_big2ulong): need to calc in unsigned long, because
+	  the range of VALUE is larger than it on LLP64 platform, such as Win64.
+	  this change fixes the failures of test/-ext-/num2int.
+
+Wed Nov 16 12:02:47 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/webrick/test_cgi.rb (TestWEBrickCGI#start_cgi_server): there are
+	  no guarantee of existence of RbConfig::CONFIG['LIBPATHENV'].
+	  it only exists in Unix-like environments.
+
+	* test/webrick/test_filehandler.rb
+	  (WEBrick::TestFileHandler#test_script_disclosure): ditto.
+
+Wed Nov 16 11:34:20 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* io.c (argf_next_argv): wrong timing of setting ecflags.
+	  fixed the failure of TestArgf#test_textmode introduced at r33662.
+
+Wed Nov 16 10:45:00 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/-test-/num2int/num2int.c: remove an unnecessary and wrong decl
+	  of rb_stdout.  it's declared in ruby.h correctly.
+
+Wed Nov 16 10:26:41 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* bignum.c (rb_big2ull): add a cast to get rid of a VC++ warning.
+
+Wed Nov 16 09:39:27 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/minitest/unit.rb (assert_raises): experimental fix to run
+	  correctly on chkbuild over 64bit linux. call exception_details only
+	  when the detail is really needed to avoid create needless inspect
+	  under ulimit-ed environment.
+
+Wed Nov 16 06:34:30 2011  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_thread.rb (test_condvar_timed_wait): use
+	  assert_operator.
+
+Tue Nov 15 21:56:25 2011  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_sleep.rb (test_sleep_5sec): 0.1sec tolerance is too
+	  small for busy environment.
+
+Tue Nov 15 20:08:55 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c, thread.c, ext/pty/pty.c, ext/fiddle/closure.c: use
+	  __linux__ macro for consistency.
+
+Tue Nov 15 14:45:15 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* include/ruby/ruby.h(NUM2LONG, NUM2INT, NUM2SHORT, NUM2LL,
+	  INT2NUM, UINT2NUM, LONG2NUM, ULONG2NUM, NUM2CHR): wrap by
+	  macros.
+
+Tue Nov 15 13:38:14 2011  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* include/ruby/defines.h (FLUSH_REGISTER_WINDOWS): move sparc asm code
+	  to a separate file sparc.c for preventing inlining optimization.
+	  Patched by Jurij Smakov. [Bug #5244] [ruby-core:40685]
+	* sparc.c (rb_sparc_flush_register_windows): ditto.
+	* configure.in: ditto.
+
+Tue Nov 15 13:11:35 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* include/ruby/ruby.h: get rid of gcc specific rb_long2int(),
+	  NUM2LONG(), NUM2INT(), NUM2SHORT(), NUM2LL(), INT2NUM(),
+	  UINT2NUM(), LONG2NUM(), ULONG2NUM() and NUM2CHR()
+	  implementation. Because 1) They don't make any better code
+	  at all. 2) Inline function have a better debugger supoort.
+
+Tue Nov 15 09:58:25 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/ruby/test_io.rb (TestIO#test_fcntl_dupfd): fix OpenBSD test
+	  failure. [ruby-dev:44872]
+
+Tue Nov 15 09:50:21 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* regcomp.c (print_indent_tree): fix double printing of ENCLOSE_OPTION
+	  children bug. patched by Suraj Kurapati. [ruby-core:40964]
+
+Tue Nov 15 01:53:48 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* test/ruby/test_io.rb (test_fcntl_dupfd): fix test error on
+	  SnowLeopard. Pointed out by CHIKANAGA Tomoyuki. [ruby-dev:44866]
+
+Mon Nov 14 22:06:02 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/openssl/ossl_pkey.c (ossl_pkey_new_from_file): set close-on-exec
+	  flag.
+
+	* ext/openssl/ossl_x509cert.c (rb_fd_fix_cloexec): ditto.
+
+Mon Nov 14 14:54:17 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* bignum.c (rb_big2ull): fix 32bit platform breakage. we must
+	  not assume sizeof(VALUE) == sizeof(LONG_LONG).
+	* test/-ext-/num2int/test_num2int.rb (class TestNum2int):
+	  fix false assumption on 32bit platform.
+
+Mon Nov 14 14:52:54 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* numeric.c (rb_fix2ushort): fix typo. use num rb_num2ushort()
+	  instead of num2uint().
+
+Sun Nov 13 10:31:03 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* include/ruby/ruby.h: add #ifdef comment.
+
+Sun Nov 13 10:28:18 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* include/ruby/ruby.h: add NUM2SHORT(), NUM2USHORT() macros.
+	* numeric.c: ditto.
+
+	* test/-ext-/num2int/test_num2int.rb: add testcases for NUM2SHORT().
+	* ext/-test-/num2int/num2int.c: ditto.
+
+Sun Nov 13 10:23:48 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* bignum.c (rb_big2ull): fix off-by-twice bug of NUM2ULL.
+	* test/-ext-/num2int/test_num2int.rb (class TestNum2int):
+	  fix a testcase too.
+
+Sun Nov 13 10:22:44 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/-ext-/num2int/test_num2int.rb (class TestNum2int):
+	  add FIXNUM tests.
+
+Sun Nov 13 09:57:29 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* numeric.c (check_uint): fix off-by-one bug of NUM2UINT.
+	* bignum.c (rb_big2ulong): fix off-by-one bug of NUM2ULONG.
+
+	* test/-ext-/num2int/test_num2int.rb: add a testcase for NUM2INT()
+	  NUM2UINT(), NUM2LONG(), NUM2ULONG(), NUM2LL and NUM2ULL().
+	* ext/-test-/num2int/depend: ditto.
+	* ext/-test-/num2int/extconf.rb: ditto.
+	* ext/-test-/num2int/num2int.c: ditto.
+
+Sun Nov 13 23:47:29 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/dbm/extconf.rb: use convertible_int.
+
+Sun Nov 13 23:45:57 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (checking_for): should not modify the result.
+
+	* lib/mkmf.rb (have_struct_member): accept compiler options.
+
+	* lib/mkmf.rb (convertible_int): add restricted support of struct
+	  member, and TYPEOF_ macro.
+
+Sun Nov 13 23:21:24 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/gdbm/gdbm.c (fgdbm_reorganize): set close-on-exec flag after
+	  gdbm_reorganize().  gdbm_reorganize() opens a new database internally.
+
+Sun Nov 13 19:57:18 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: rollback for each headers for each libraries.
+
+Sun Nov 13 16:24:48 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: treat libc as a choice for a library which
+	  provide ndbm API.
+
+Sun Nov 13 15:40:43 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: duplicate $libs and $defs when save them.
+
+Sun Nov 13 12:43:48 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: rollback $libs and $defs when db detection is
+	  failed.  It fixes -lgdbm -lqdbm when the system has qdbm and gdbm
+	  without gdbm_compat.
+
+Sat Nov 12 21:14:51 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/webrick/test_cgi.rb (class TestWEBrickCGI): respect
+	  RbConfig::CONFIG["LIBPATHENV"]. [Bug #5135] [ruby-core:38653]
+	* test/webrick/test_filehandler.rb (class WEBrick): ditto.
+
+Sat Nov 12 20:57:29 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/ruby/test_io.rb (test_fcntl_dupfd): skip if Fcntl::DUPFD
+	  is not defined. Pointed out by CHIKANAGA Tomoyuki. Thanks.
+
+Sat Nov 12 17:26:10 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (do_ioctl, ioctl_narg_len, setup_narg, rb_ioctl): use
+	  ioctl_req_t.
+
+Sat Nov 12 17:01:49 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/dbm/extconf.rb (headers.db_check): reduce duplicated code.
+
+Sat Nov 12 15:59:42 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: dbm_clearerr should be available in all ndbm
+	  implementation.  If it is not available, it is caused by
+	  header/library mismatch such that Berkeley DB header & gdbm library.
+
+	* ext/dbm/dbm.c (fdbm_store): use dbm_clearerr() unconditionally.
+	  gdbm 1.9 provides it as a real function instead of a empty macro.
+
+Sat Nov 12 13:35:33 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* bootstraptest/runner.rb: don't suppress SIGINT.
+	  [Feature #5612] [ruby-dev:44856]
+
+Sat Nov 12 11:20:36 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (fcntl_narg_len): introduce narg calculation for fcntl instead
+	  of hard coded 256.
+	* io.c (setup_narg): ditto.
+
+Sat Nov 12 11:19:35 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/ruby/test_io.rb (test_fcntl_dupfd): add another fcntl test.
+
+Sat Nov 12 11:18:17 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/ruby/test_io.rb (test_fcntl_lock_freebsd): add a testcase
+	  of fcntl lock for freebsd.
+
+Sat Nov 12 11:16:32 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (ioctl_narg_len): Linux doesn't have IOCPARM_LEN macro, but
+	  has _IOC_SIZE. support it.
+
+Sat Nov 12 11:13:18 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (rb_ioctl): don't expose our sanity check value to ruby script.
+	  It may change string value meaning if the value is string.
+	  (e.g. MacOS X has F_GETPATH ioctl)
+	* io.c (rb_fcntl): ditto.
+
+Sat Nov 12 11:06:02 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (ioctl_req_t): Type of req argument of ioctl() depend on platform.
+	  Moreover almost all linux ioctl can't be represented by 32bit integer
+	  (i.e. MSB is 1). We need wrap ioctl argument type.
+	  [Bug #5429] [ruby-dev:44589]
+	* io.c (struct ioctl_arg): ditto.
+	* io.c (rb_ioctl): ditto.
+	* test/ruby/test_io.rb (test_ioctl_linux): add a testcase for ioctl
+
+Sat Nov 12 11:00:42 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (struct io_cntl_arg): remove io_p member.
+	* io.c (nogvl_fcntl, do_fcntl, rb_fcntl): separated from ioctl functions.
+	* io.c (nogvl_io_cntl): remove fcntl depended logic.
+	* io.c (io_cntl): ditto.
+	* io.c (rb_io_ctl): ditto.
+	* io.c (rb_io_ioctl): ditto.
+
+Sat Nov 12 10:59:49 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (setup_narg): fix off by one bug.
+
+Sat Nov 12 10:56:43 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (+setup_narg): factor out length calculation logic.
+	* io.c (rb_io_ctl): ditto.
+
+Sat Nov 12 10:52:17 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (+ioctl_narg_len) new helper function.
+	* io.c (rb_io_ctl): don't use ioctl specific length check
+	  if caller is fcntl.
+
+Fri Nov 11 23:00:46 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: db_prefix is not required now.
+
+Fri Nov 11 21:13:30 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/gdbm/gdbm.c (fgdbm_initialize): use GDBM_CLOEXEC if available.
+
+Fri Nov 11 21:00:05 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: fix dbm_pagfno and dbm_dirfno detection with
+	  Berkeley DB.  Macro definitions needs arguments to detect correctly.
+	  SIZEOF_DSIZE needs -DDB_DBM_HSEARCH because db.h defines datum type
+	  only if DB_DBM_HSEARCH is defined.
+
+Fri Nov 11 18:41:57 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (proc_seteuid): separate an internal wrapper function
+	  from the method implementation.
+
+Fri Nov 11 17:21:15 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (have_library, find_library, have_func): allow
+	  arguments of function to be checked.
+
+Fri Nov 11 17:09:45 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_dump.c (HAVE_BACKTRACE): fallback to 0.
+
+	* vm_dump.c (rb_vm_bugreport): show "Other runtime information"
+	  header only when available.
+
+	* vm_dump.c (rb_vm_bugreport): get rid of modifying the content of
+	  VM directly.
+
+	* vm_dump.c (rb_vm_bugreport): check if vm is non-null.
+	  Pointed out by Ikegami Daisuke <ikegami.da@gmail.com>.
+	  Thank you.
+
+Fri Nov 11 12:36:37 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (pipe_open): Remove fflush(stdin). it's no effect.
+	  Pointed out by Ikegami Daisuke <ikegami.da@gmail.com>.
+	  Thank you.
+
+Fri Nov 11 07:33:30 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/http.rb (Net::HTTP::SSL_ATTRIBUTES):  Use symbol keys instead
+	  of string keys to avoid duplicating parameters in
+	  OpenSSL::SSL:SSLContext#set_params.
+
+Thu Nov 10 15:02:37 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (have_library, have_func, have_var, have_header):
+	  add compiler option parameter.
+
+Thu Nov 10 07:45:16 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/openssl/lib/openssl/ssl.rb (class OpenSSL::SSL::SSLContext):
+	  Document #set_params.
+
+Wed Nov  9 11:36:53 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread_pthread.c (gvl_yield): don't prevent concurrent sched_yield().
+	  [Bug #5130] [ruby-core:38647]
+
+Wed Nov  9 23:20:22 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_update_max_fd): fstat(2) can fail with other than
+	  EBADF.  [ruby-dev:44837] [Bug #5593].  Cf.
+	  http://pubs.opengroup.org/onlinepubs/9699919799/functions/fstat.html
+
+	* io.c (rb_sysopen): max fd is updated in rb_sysopen_internal()
+	  already.
+
+Wed Nov  9 22:13:38 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_file.rb (TestFile#test_utime_with_minus_time_segv):
+	  fixed previous commit.
+
+Wed Nov  9 19:53:45 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_file.rb (TestFile#test_utime_with_minus_time_segv):
+	  add test for r33685.
+
+Wed Nov  9 19:00:44 2011  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_fiber.rb: add tests for r33684 (Fiber#resume).
+
+Wed Nov  9 16:40:49 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (unixtime_to_filetime): should check the return value
+	  of localtime().  reported by snowjail at gmail.com.
+	  [ruby-dev:44838] [Bug #5596]
+
+Thu Nov  9 13:17:25 2011  Koichi Sasada  <ko1@atdot.net>
+
+	* cont.c (rb_fiber_m_transfer, rb_fiber_resume): prohibit using
+	  "resume" after "transfer" method are used.  You should not mix
+	  "resume" fiber and "transfer" fiber.
+	  [Bug #5526]
+
+	* NEWS: add information about this change.
+
+Wed Nov  9 11:40:37 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* template/Doxyfile.tmpl (INCLUDE_PATH): add srcdir and include.
+	  [ruby-core:40843] [Bug #5597]
+
+Wed Nov  9 11:02:54 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* thread.c (do_select): fix cast, tv_sec is time_t.
+
+Wed Nov  9 10:32:20 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: should not use test -e for portability.
+	  [ruby-core:40841] [Bug #5594]
+
+Wed Nov  9 04:52:16 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/tree_builder.rb: dump complex numbers,
+	  rationals, etc with reference ids.
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: ditto
+	* ext/psych/lib/psych/visitors/to_ruby.rb: loading complex numbers,
+	  rationals, etc with reference ids.
+	* test/psych/test_object_references.rb: corresponding tests
+
+Tue Nov  8 23:34:37 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/dbm/dbm.c (fdbm_fetch, fdbm_key, fdbm_delete, fdbm_store)
+	  (fdbm_has_key, fdbm_has_value): get rid of overflow.
+
+	* ext/gdbm/gdbm.c (rb_gdbm_fetch2, rb_gdbm_nextkey)
+	  (rb_gdbm_delete, fgdbm_store, fgdbm_has_key): ditto.
+
+	* ext/dbm/dbm.c (fdbm_delete_if): hide intermediate objects.
+
+	* ext/gdbm/gdbm.c (fgdbm_delete_if): ditto.
+
+	* ext/dbm/extconf.rb: check size of datum.dsize to get rid of
+	  overflow.
+
+Tue Nov  8 23:30:21 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (PATH_MAX): define if not defined. [ruby-core:40840]
+
+Tue Nov  8 23:26:49 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/tk/tcltklib.c (rb_thread_critical): fix type.
+
+	* ext/tk/tcltklib.c (eventloop_sleep, lib_eventloop_core): int is
+	  enough for micro seconds.  may need to check overflow in the
+	  setter though.
+
+	* ext/tk/tcltklib.c (RSTRING_LENINT): check overflow if necessary.
+
+	* ext/tk/tcltklib.c (RbTk_ALLOC_N): wrapper for ckalloc() which
+	  takes an int.
+
+	* ext/tk/tcltklib.c (ip_ruby_cmd_receiver_get, tcltklib_compile_info):
+	  get rid overflow.
+
+	* ext/tk/tcltklib.c (tcltklib_compile_info): constified.
+
+Tue Nov  8 20:50:45 2011  Tanaka Akira  <akr@fsij.org>
+
+	* test/dbm/test_dbm.rb: split tests for read only database.
+
+	* test/gdbm/test_gdbm.rb: ditto.
+
+Tue Nov  8 18:59:07 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/pty/pty.c (MasterDevice): define only when used.
+	  (SlaveDevice): ditto.
+	  (deviceNo): ditto.
+
+Tue Nov  8 17:59:24 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (rb_long2int): define as a macro always, so
+	  that cpp conditionals can tell if it is provided.
+
+Tue Nov  8 17:30:50 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (cpp_command): remove multiple -arch flags since cpp
+	  cannot work.
+
+Tue Nov  8 14:50:55 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* io.c (io_fwrite): call rb_w32_write_console() only if FMODE_TTY is
+	  set.  this is the one of the reason of IO writing slowness of Windows
+	  in 1.9.3 or later.
+
+Tue Nov  8 11:01:04 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/pty/pty.c (get_device_once): FreeBSD 8 supported O_CLOEXEC flag
+	  for posix_openpt, but FreeBSD 9's posix_openpt doesn't support
+	  O_CLOEXEC and fails if specified.
+
+Tue Nov  8 02:36:45 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* include/ruby/encoding.h (ECONV_NEWLINE_DECORATOR_READ_MASK,
+	  ECONV_NEWLINE_DECORATOR_WRITE_MASK): new macro.
+
+	* io.c (rb_io_extract_modeenc, pipe_open, prep_stdio, argf_next_argv):
+	  set TEXTMODE_NEWLINE_DECORATOR_ON_WRITE for textmode on creating IO
+	  if the flag is available.
+
+	* io.c (make_writeconv): drop decorators for reading.
+
+	* io.c (make_readconv): drop decorators for writing.
+
+	* io.c (do_writeconv): existing writeconv is not the condition to raise
+	  ArgumentError.  should check textmode or not.
+
+	* test/ruby/test_io_m17n.rb
+	  (TestIO_M17N#test_{cr,lf,crlf}_decorator_on_stdout): test above
+	  changes.
+
+Mon Nov  7 22:03:47 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/gdbm/gdbm.c (fgdbm_initialize): set close-on-exec flag.
+
+Mon Nov  7 20:31:52 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/scalar_scanner.rb: make sure strings that look
+	  like base 60 numbers are serialized as quoted strings.
+	* test/psych/test_string.rb: test for change.
+
+Mon Nov  7 20:26:37 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* test/psych/test_yamlstore.rb: make test case inherit from MiniTest,
+	  load psych/helper so that psych is loaded.
+
+Mon Nov  7 20:18:29 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* test/psych/test_yamldbm.rb: Test case should inherit from MiniTest,
+	  load psych/helper so that psych and friends are loaded.
+
+Mon Nov  7 20:15:44 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/extconf.rb: check dbm_pagfno() and dbm_dirfno().
+
+	* ext/dbm/dbm.c: use above to set close-on-exec flag.
+
+Mon Nov  7 20:05:16 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* io.c (io_fflush): remove fsync().
+
+	* io.c (rb_io_flush, rb_io_rewind): fsync() here.
+
+	these changes reduces fsync() calls to improve performance.
+	first reported at [ruby-list:48515] by ak7 at mail.goo.ne.jp .
+	[Bug #5585]
+
+Mon Nov  7 19:43:10 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_close_before_exec): use F_MAXFD if available.
+	  F_MAXFD is available on NetBSD since NetBSD 2.0.
+
+Mon Nov  7 19:25:16 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_io_m17n.rb
+	  (TestIO_M17N#test_default_stdout_stderr_mode): new test for
+	  r33627-33629.  see [backport #5565]
+
+Mon Nov  7 01:14:22 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* lib/debug.rb: add help for 'pp' and 'r[estart]'. patch
+	  from Sho Hashimoto. [Bug #5093] [ruby-dev:44222]
+
+Sun Nov  6 14:49:58 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/rubysocket.h (rsock_recvmsg): declared.
+
+	* ext/socket/ancdata.c (rsock_recvmsg): extracted from
+	  nogvl_recvmsg_func.
+	  (nogvl_recvmsg_func): use rsock_recvmsg.
+
+	* ext/socket/unixsocket.c (recvmsg_blocking): use rsock_recvmsg.
+
+Sun Nov  6 03:22:36 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* test/openssl/test_engine.rb: add test for engine cipher. RC4 is used
+	  because AES is not supported by the "openssl" engine currently.
+
+Sun Nov  6 00:11:52 2011  Tanaka Akira  <akr@fsij.org>
+
+	* lib/test/unit.rb (Test::Unit::Options#non_options): options[:ruby]
+	  should be an array.  This fixes
+	  "./ruby test/runner.rb test/testunit/test_parallel.rb"
+	  [ruby-dev:44782]
+
+Sat Nov  5 20:30:30 2011  Martin Duerst  <duerst@it.aoyama.ac.jp>
+
+	* insns.def: Some fixes and tweaks to English explanations
+
+Sat Nov  5 19:11:50 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_cloexec_fcntl_dupfd): don't clear try_dupfd_cloexec if
+	  fcntl(F_DUPFD) failed as fcntl(F_DUPFD_CLOEXEC).
+
+Sat Nov  5 18:05:12 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/socket.c (rsock_socketpair0): refactored.
+
+Sat Nov  5 17:55:52 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/init.c (rsock_socket0): don't clear try_sock_cloexec if
+	  SOCK_CLOEXEC is not a reason for EINVAL.
+
+Sat Nov  5 16:27:52 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* ext/pathname/lib/pathname.rb, ext/tk/lib/multi-tk.rb,
+	  ext/tk/sample/demos-en/widget, lib/benchmark.rb, lib/irb/cmd/fork.rb,
+	  lib/mkmf.rb, lib/net/ftp.rb, lib/net/smtp.rb, lib/open3.rb,
+	  lib/pstore.rb, lib/rexml/element.rb, lib/rexml/light/node.rb,
+	  lib/rinda/tuplespace.rb, lib/rss/maker/base.rb,
+	  lib/rss/maker/entry.rb, lib/scanf.rb, lib/set.rb, lib/shell.rb,
+	  lib/shell/command-processor.rb, lib/shell/process-controller.rb,
+	  lib/shell/system-command.rb, lib/uri/common.rb: remove unused block
+	  arguments to avoid creating Proc objects.
+
+Sat Nov  5 15:45:04 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/init.c (rsock_socket0): extract single socket() call with
+	  CLOEXEC handling from rsock_socket.
+
+Sat Nov  5 13:49:40 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* lib/pathname.rb (Pathname#find): return an enumerator if
+	  no block is given.
+
+	* test/pathname/test_pathname.rb: add tests for above.
+
+	[ruby-dev:44797] [Feature #5572]
+
+Sat Nov  5 11:18:12 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/socket.c (rsock_socketpair0): don't clear
+	  try_sock_cloexec if SOCK_CLOEXEC is not a reason for EINVAL.
+
+Fri Nov  4 14:08:19 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* ext/openssl/ossl_pkey_rsa.c (rsa_generate): [SECURITY] Set RSA
+	  exponent value correctly.  Awful bug.  This bug caused exponent of
+	  generated key to be always '1'.  By default, and regardless of e
+	  given as a parameter.
+
+	  !!! Keys generated by this code (trunk after 2011-09-01) must be
+	  re-generated !!! (ruby_1_9_3 is safe)
+
+	* test/openssl/test_pkey_rsa.rb: Add tests for default exponent and
+	  specifying exponent by a parameter.
+
+Fri Nov  4 01:31:25 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* test/openssl/test_engine.rb: add first tests for builtin "openssl"
+	  engine.
+
+Fri Nov  4 08:41:26 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/extconf.rb:
+	* ext/openssl/ossl_engine.c: add some missing OpenSSL engines.
+	  Thanks, Yui Naruse, for providing the patch!
+	  [Bug #5548] [ruby-core:40670]
+
+Fri Nov  4 04:54:10 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/configure.bat: disable delayed expansion of enironment variable.
+	  [Bug #5517] [ruby-core:40531]
+
+Fri Nov  4 03:45:22 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* io.c (make_writeconv): fixed typo of previous commit.
+
+Fri Nov  4 01:56:30 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* io.c (make_writeconv): unversal_newline converter is for reading.
+	  so, if the io is text mode and has ECONV_UNIVERSAL_NEWLINE_DECORATOR
+	  flag, use crlf_newline converter for writing.
+	  this change fixes the problem about the luck of CR up Kernel.p and
+	  Kernel.puts to stdout/stderr on Windows.
+
+Fri Nov  4 01:04:48 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/readline/readline.c (Init_readline): like r18313, libedit's
+	  replace_history_entry may use offset instead of which.
+	  so introduce history_replace_offset_func and initialize it.
+
+	* ext/readline/readline.c (hist_set): use history_replace_offset_func.
+
+Fri Nov  4 00:53:35 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/readline/readline.c (Init_readline): fix wrong condition.
+
+Thu Nov  3 23:53:04 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* encoding.c (rb_locale_charmap): ignore calling nl_langinfo_codeset()
+	  on Windows except cygwin. [experimental]
+
+Thu Nov  3 22:45:09 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/socket.c (rsock_socketpair0): extracted from
+	  rsock_socketpair to set close-on-exec flag for each socketpair()
+	  call.
+
+Thu Nov  3 22:12:41 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* ext/socket/init.c (rsock_socket): set close-on-exec flag when
+	  SOCK_CLOEXEC is not available.
+
+Thu Nov  3 08:36:00 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* test/openssl/test_engine.rb: call Engine::cleanup on exit.
+	  Patch provided by Yui Naruse, thanks!
+	  [Bug #5547] [ruby-core:40669]
+
+Wed Nov  2 21:36:00 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* complex.c (nucomp_rationalize): fix function.  [ruby-core:40667]
+	  [Bug #5546]
+
+Wed Nov  2 08:16:45 2011  Tanaka Akira  <akr@fsij.org>
+
+	* lib/webrick/utils.rb: fix fcntl call.
+
+	* lib/drb/unix.rb: ditto.
+
+Wed Nov  2 00:43:59 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* test/psych/test_yamldbm.rb: avoid platform dependency.
+	  patch by Naohisa Goto. [ruby-dev:44763] [Bug #5535]
+	* test/syck/test_yamldbm.rb: ditto.
+
+Wed Nov  2 00:14:15 2011  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* test/ruby/test_marshal.rb: renamed methods duplicated with those
+	  of marshaltestlib.rb.
+
+Tue Nov  1 22:08:27 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: reject llvm-gcc.
+
+Tue Nov  1 21:39:00 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* io.c (rb_cloexec_pipe): remove workaround of r33587.
+	  The bug of NetBSD is fixed on Mon Oct 31 21:31:29 UTC 2011.
+	  http://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=45545
+
+Tue Nov  1 19:49:08 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_io_reopen): call rb_fd_fix_cloexec instead of
+	  rb_maygvl_fd_fix_cloexec.
+
+Tue Nov  1 19:00:30 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_io_reopen): call rb_maygvl_fd_fix_cloexec after freopen().
+
+Tue Nov  1 17:17:26 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* file.c (file_expand_path): reset coderange after expanding path.
+
+Tue Nov  1 14:55:29 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* io.c (nogvl_io_cntl): rb_cloexec_fcntl_dupfd's 2nd argument is int.
+
+	* process.c (move_fds_to_avoid_crash): ditto.
+
+Tue Nov  1 13:14:33 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vsnprintf.c (BSD_vfprintf): support 'll' prefix.
+
+	* vsnprintf.c (__sfeof): rename to avoid the collision with NetBSD's
+	  one.
+
+	* vsnprintf.c (__sferror): ditto.
+
+	* vsnprintf.c (__sclearerr): ditto.
+
+	* vsnprintf.c (__sfileno): ditto.
+
+Tue Nov  1 12:36:16 2011  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (rb_maygvl_fd_fix_cloexec): change the visibility for
+	  ext/socket.
+
+Tue Nov  1 12:00:53 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_maygvl_fd_fix_cloexec): renamed from fd_set_cloexec.
+
+	* internal.h (rb_maygvl_fd_fix_cloexec): declared.
+
+	* ext/socket/init.c (cloexec_accept): use rb_maygvl_fd_fix_cloexec.
+	  (rsock_s_accept_nonblock): use rb_update_max_fd.
+	  (rsock_s_accept): use rb_update_max_fd.
+
+Tue Nov  1 08:24:40 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/init.c (cloexec_accept): new function to use accept4 if
+	  available.
+	  (rsock_s_accept_nonblock): use cloexec_accept.
+	  (accept_blocking): ditto.
+
+	* ext/socket/extconf.rb: check accept4.
+
+Tue Nov  1 07:31:55 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/ancdata.c (nogvl_recvmsg_func): use MSG_CMSG_CLOEXEC if
+	  available.
+
+	* ext/socket/unixsocket.c (recvmsg_blocking): ditto.
+
+Tue Nov  1 05:59:41 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/socket.c (rsock_socketpair): use SOCK_CLOEXEC if
+	  available.
+
+Tue Nov  1 02:56:17 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ruby.c (load_file_internal): convert the encoding of load path if
+	  needed by platform.  calling open() was replaced by rb_cloexec_open()
+	  at r33549, but the function expected UTF-8 pathname on Windows.
+	  (open() expected "locale" pathname.)
+	  reported by taco via IRC.
+
+	* ruby.c (load_file): change the type of the 2nd parameter to pass its
+	  encoding to load_file_internal().
+
+	* ruby.c (process_options, rb_load_file): follow above change.
+	  NOTE: we should pass encoding information to rb_load_file().
+
+Mon Oct 31 23:49:38 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/socket.c (rsock_socketpair): extracted from
+	  rsock_sock_s_socketpair.
+
+Mon Oct 31 23:31:53 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/init.c (rsock_socket): use SOCK_CLOEXEC if available.
+
+Mon Oct 31 21:47:44 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* io.c (rb_cloexec_pipe): NetBSD 6.0 will support pipe2(2),
+	  but its return value is -1 or larger than 0.
+
+Mon Oct 31 22:04:54 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dbm/dbm.c (fdbm_initialize): use O_CLOEXEC if available.
+
+Mon Oct 31 21:47:48 2011  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/intern.h (rb_fd_fix_cloexec): renamed from
+	  rb_fd_set_cloexec.
+
+	* io.c: follow the above renaming.
+
+	* ext/pty/pty.c: ditto.
+
+	* ext/socket/init.c: ditto.
+
+	* ext/socket/socket.c: ditto.
+
+	* ext/socket/ancdata.c: ditto.
+
+	* ext/socket/unixsocket.c: ditto.
+
+Mon Oct 31 21:02:43 2011  Tanaka Akira  <akr@fsij.org>
+
+	* lib/resolv.rb (Resolv::DNS): retry IO.select for premature wakeup.
+
+Mon Oct 31 20:14:22 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (fd_set_cloexec): clear CLOEXEC flag for standard file
+	  descriptors.
+	  (rb_cloexec_dup): use rb_cloexec_fcntl_dupfd.
+	  (rb_cloexec_fcntl_dupfd): use F_DUPFD_CLOEXEC if available.
+
+Mon Oct 31 19:14:11 2011  Tanaka Akira  <akr@fsij.org>
+
+	* test/resolv/test_dns.rb: don't check maximum slept time.
+	  ruby doesn't guarantee the maximum time because it is not a
+	  realtime application.
+
+Mon Oct 31 13:10:06 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (setfl): extract from fcntl().
+
+	* win32/win32.c (dupfd): new function to support F_DUPFD. based on a
+	  patch written by akr.
+
+	* win32/win32.c (fcntl): use above functions.
+
+	* include/ruby/win32.h (F_DUPFD): define. [experimental]
+
+	* include/ruby/win32.h (F_SETFL): change the value to correspond with
+	  other platforms.
+
+Mon Oct 31 12:37:50 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/pty/pty.c (get_device_once): use O_CLOEXEC for posix_openpt if
+	  available.
+
+Mon Oct 31 12:05:24 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_cloexec_dup2): check oldfd == newfd at first.
+	  pointed by KOSAKI Motohiro.  [ruby-dev:44713]
+
+Mon Oct 31 10:50:26 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* io.c (rb_cloexec_fcntl_dupfd): this function needs F_DUPFD.
+
+	* io.c (nogvl_io_cntl): use rb_cloexec_fcntl_dupfd() only if the
+	  platform has F_DUPFD.
+
+Mon Oct 31 00:50:00 2011  Luis Lavena  <luislavena@gmail.com>
+
+	* configure.in: check -fno-omit-frame-pointer acceptance and usage
+	  under MinGW. [ruby-core:39957] [Bug #5407]
+
+Mon Oct 31 00:16:11 2011  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/intern.h (rb_cloexec_fcntl_dupfd): declared.
+
+	* io.c (rb_cloexec_fcntl_dupfd): new function.
+	  (nogvl_io_cntl): use rb_cloexec_fcntl_dupfd.
+
+	* process.c (move_fds_to_avoid_crash): use rb_cloexec_fcntl_dupfd.
+
+Sun Oct 30 22:46:46 2011  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: check pipe2.
+
+	* io.c (rb_cloexec_pipe): use pipe2 if available.
+
+Sun Oct 30 22:32:44 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ruby.c (fill_standard_fds): use fstat() instead of fcntl(F_GETFD)
+	  for MinGW.  reported by Luis Lavena.  [ruby-core:40526] [Bug #5516]
+
+Sun Oct 30 21:12:47 2011  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/intern.h (rb_cloexec_pipe): declared.
+
+	* io.c (rb_cloexec_pipe): new function.
+	  (rb_pipe): use rb_cloexec_pipe.
+
+	* thread_pthread.c (rb_thread_create_timer_thread): use
+	  rb_cloexec_pipe.
+
+Sun Oct 30 20:06:07 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_cloexec_dup): refine control flow.
+	  (rb_cloexec_dup2): ditto.
+
+Sun Oct 30 18:45:50 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ruby.c (fill_standard_fds): new function to open closed standard
+	  file descriptors.
+	  (ruby_sysinit): call fill_standard_fds.
+
+Sun Oct 30 10:50:36 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/rbinstall.rb (install_recursive, bin-comm): split mere
+	  string not path name.  [ruby-core:40462] [Bug #5492]
+
+Sun Oct 30 10:47:20 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_cloexec_dup, rb_cloexec_dup2): CLOEXEC has been set if
+	  dup3 succeeded.
+
+Sun Oct 30 09:58:48 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_cloexec_dup): don't allocate standard file descriptors.
+
+Sun Oct 30 08:29:51 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_cloexec_dup2): don't set CLOEXEC for standard file
+	  descriptors.
+
+Sun Oct 30 07:47:10 2011  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: check dup3.
+
+	* io.c (rb_cloexec_dup2): use dup3 if available.
+
+Sat Oct 29 22:06:37 2011  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/intern.h (rb_cloexec_dup2): declared.
+
+	* io.c (rb_cloexec_dup2): new function.
+	  (io_reopen): use rb_cloexec_dup2.
+
+Sat Oct 20 21:08:18 2011  Tajima Akio <artonx@yahoo.co.jp>
+
+	* win32/Makefile.sub (CONFIG_H): have stdint.h if VC2010.
+	  [Bug #5243]
+
+Sat Oct 29 20:59:08 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_cloexec_dup): use F_DUPFD_CLOEXEC if available.
+
+Sat Oct 29 20:00:26 2011  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/intern.h (rb_cloexec_dup): declared.
+
+	* io.c (rb_cloexec_dup): new function.
+	  (ruby_dup): use rb_cloexec_dup.
+
+	* ext/pty/pty.c (pty_getpty): use rb_cloexec_dup.
+
+	* ext/openssl/ossl_bio.c (ossl_obj2bio): ditto.
+
+Sat Oct 29 16:11:34 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/sdbm/_sdbm.c (sdbm_prep): use O_CLOEXEC if available.
+
+Sat Oct 29 14:26:56 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_cloexec_open): use O_CLOEXEC if available.
+
+Sat Oct 29 12:57:15 2011  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (ruby_setsid): use rb_cloexec_open.
+	  (rb_daemon): ditto.
+
+	* ruby.c (load_file_internal): ditto.
+
+	* file.c (rb_file_s_truncate): ditto.
+	  (file_load_ok): ditto.
+
+	* random.c (fill_random_seed): ditto.
+
+	* ext/pty/pty.c (chfunc): ditto.
+	  (get_device_once): ditto.
+
+	* ext/io/console/console.c (console_dev): ditto.
+
+Sat Oct 29 10:40:19 2011  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/intern.h (rb_cloexec_open): declared.
+
+	* io.c (fd_set_cloexec): extracted from rb_fd_set_cloexec.
+	  (rb_cloexec_open): new function.
+	  (sysopen_func): use rb_cloexec_open.
+	  (rb_sysopen_internal): use rb_update_max_fd instead of
+	  rb_fd_set_cloexec.
+
+Sat Oct 29 09:05:07 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread_pthread.h: no Structured Exception Handling like macros.
+	  [ruby-core:40432] [Bug #5491]
+
+Fri Oct 28 22:05:34 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/sdbm/_sdbm.c: RCS $Id$ removed.
+
+Thu Oct 27 18:58:00 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* parse.y (parser_nextc): set encoding for the buffer of ripper.
+
+Fri Oct 28 06:06:08 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/sdbm/_sdbm.c (sdbm_prep): set FD_CLOEXEC flags for file
+	  descriptors.
+	  (fd_set_cloexec): new function.
+
+Fri Oct 28 03:01:27 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* vm_insnhelper.c (vm_call_cfunc): adding back useless hack.  For some
+	  reason, this fixes CFP errors on OS X 10.7.
+
+Fri Oct 28 00:09:31 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/sdbm/_sdbm.c (sdbm_prep): refactored for less nesting.
+
+Thu Oct 27 18:28:18 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (RUBY_DEFINE_IF): revert r33534 partially to get
+	  rid of AS_ECHO which is not available in autoconf 2.61.
+	  [ruby-dev:44702]
+
+Thu Oct 27 16:10:46 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* bignum.c (rb_big_divide): raise ZeroDivisionError if divisor is
+	  zero, as well as Fixnum.  [ruby-core:40429] [Bug #5490]
+
+Thu Oct 27 14:56:22 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (RUBY_FUNC_ATTRIBUTE): unset temporary variable.
+
+	* configure.in (RUBY_STACK_GROW_DIRECTION): substitute CPU name as
+	  shell variable name.  based on the patch by The Written Word Inc. at
+	  [ruby-core:40421].  [Bug #5488]
+
+Thu Oct 27 09:57:56 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* include/ruby/ruby.h (SIZE_MAX): define SIZE_MAX if not defined.
+	  patched by The Written Word Inc. [ruby-core:40422] [Bug #5489]
+
+Thu Oct 27 08:47:38 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/psych/parser.c: remove unused variable.
+
+Thu Oct 27 08:38:41 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/extconf.rb: add -Wall flag by default when compiler is
+	  GCC.
+
+Wed Oct 26 15:24:25 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (rb_file_join): honor input encodings than ASCII-8BIT.
+	  [ruby-core:40338] [Bug #5483]
+
+Tue Oct 25 21:52:31 2011  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/defines.h: use "__sparc" instead of "sparc" and
+	  "__sparc__".
+
+	* dln.c: ditto.
+
+	  [ruby-dev:44694]
+
+Tue Oct 25 06:34:39 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* re.c (match_aref):  Use <code> around indexing examples to prevent
+	  hyperlinks.  [ruby-talk:389396]
+
+Mon Oct 24 23:55:31 2011  Tanaka Akira  <akr@fsij.org>
+
+	* complex.c: use "__sun" instead of "__sun__" to detect SunOS.
+
+	* math.c: ditto.
+
+	* hash.c: ditto.
+
+	* atomic.h: ditto.
+
+	* ext/io/wait/wait.c: ditto.
+
+	[ruby-dev:44693]
+
+Mon Oct 24 22:45:37 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c: use "__sun" instead of "sun" to detect SunOS.
+
+	* dln.c: ditto.
+
+	* cont.c: ditto.
+
+	* ext/sdbm/_sdbm.c: ditto.
+
+	[ruby-dev:44693]
+
+Mon Oct 24 22:38:08 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/pty/pty.c (get_device_once): delay rb_fd_set_cloexec() until
+	  grantpt() on Solaris.  grantpt() doesn't work with CLOEXEC on
+	  Solaris 10.
+	  reported by Naohisa GOTO.  [ruby-dev:44688] [Bug #5475]
+
+Mon Oct 24 08:18:14 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (copy_stream_fallback_body): check nil for EOF of read method.
+	  patch by Eric Wong.  [ruby-core:39134] [Bug #5237]
+
+Sun Oct 23 18:21:23 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* ext/tk/MANUAL_tcltklib.eng: fix typo.
+
+Sun Oct 23 18:03:31 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* numeric.c (rb_infinity, rb_nan): aggregated member initializers
+	  need braces.
+
+Sun Oct 23 16:43:43 2011  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* ext/io/wait/wait.c: ioctl(2) is declared in unistd.h on Solaris.
+
+Sun Oct 23 16:33:35 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* ext/tk/MANUAL_tcltklib.eng: fix typo. reported by Mimura-san.
+	  [ruby-dev:44683] [Bug #5471]
+
+Sun Oct 23 08:01:29 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_fd_set_cloexec): set close-on-exec flag only if F_GETFD is
+	  defined.  reported by Luis Lavena.  [ruby-core:40281] [Bug #5470]
+
+Sat Oct 22 19:48:50 2011  Tanaka Akira  <akr@fsij.org>
+
+	* test/openssl/test_ssl.rb (test_multibyte_read_write): start server
+	  for each length to avoid race condition.
+
+Sat Oct 22 18:49:24 2011  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/intern.h (rb_fd_set_cloexec): declared.
+
+	* io.c (rb_fd_set_cloexec): new function.
+	  (ruby_dup): call rb_fd_set_cloexec to set close-on-exec flag.
+	  (rb_sysopen_internal): ditto.
+	  (rb_pipe): ditto.
+	  (io_reopen): ditto.
+	  (io_cntl): ditto.
+
+	* process.c (rb_f_exec): change the default :close_others option to
+	  true.
+	  (rb_f_system): ditto.
+	  (move_fds_to_avoid_crash): call rb_fd_set_cloexec to set
+	  close-on-exec flag.
+	  (ruby_setsid): ditto.
+	  (rb_daemon): ditto.
+
+	* thread_pthread.c (rb_thread_create_timer_thread): call
+	  rb_fd_set_cloexec to set close-on-exec flag.
+
+	* ruby.c (load_file_internal): ditto.
+
+	* file.c (rb_file_s_truncate): ditto.
+	  (file_load_ok): ditto.
+
+	* random.c (fill_random_seed): ditto.
+
+	* ext/pty/pty.c (chfunc): ditto.
+	  (get_device_once): ditto.
+
+	* ext/openssl/ossl_bio.c (ossl_obj2bio): ditto.
+
+	* ext/socket/init.c (rsock_socket): ditto.
+	  (rsock_s_accept_nonblock): ditto.
+	  (rsock_s_accept): ditto.
+
+	* ext/socket/socket.c (rsock_sock_s_socketpair): ditto.
+
+	* ext/socket/ancdata.c (discard_cmsg): ditto.
+	  (make_io_for_unix_rights): ditto.
+
+	* ext/socket/unixsocket.c (unix_recv_io): ditto.
+
+	* ext/io/console/console.c (console_dev): ditto.
+
+	[ruby-core:38140] [Feature #5041]
+
+Sat Oct 22 17:46:27 2011  Tanaka Akira  <akr@fsij.org>
+
+	* lib/resolv.rb: fix a exception name in previous patch.
+
+Sat Oct 22 17:43:33 2011  Tanaka Akira  <akr@fsij.org>
+
+	* lib/resolv.rb: make timeout configurable for DNS query.
+	  patch by Eric Wong.  [ruby-core:38533] [Feature #5100]
+
+Sat Oct 22 02:07:48 2011  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* numeric.c (rb_infinity, rb_nan): use union to prevent bus error
+	  caused by misalignment.  [Bug #5469] [ruby-dev:44657]
+
+	* include/ruby/missing.h (INFINITY, NAN): ditto
+
+Fri Oct 21 22:02:17 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (initial_params): pack in a struct.
+
+	* gc.c (rb_gc_set_params): set parameters always.
+	  [ruby-dev:44648] [Bug #5467]
+
+Fri Oct 21 12:10:20 2011  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* atomic.h: change Solaris checking macro because atomic_ops can work
+	  not only with Sun Studio but also with Fujitsu C Compiler.
+
+Fri Oct 21 02:11:00 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_ns_spki.c: Complete documentation.
+	* test/openssl/test_ns_spki.rb: Integrate SPKI#to_text.
+
+Thu Oct 20 22:47:28 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (socklist_insert, socklist_lookup, socklist_delete):
+	  new functions to wrap of st_insert(), st_lookup() and st_delete() to
+	  socklist.
+	  allocating socklist is deferred until it is really needed.
+
+	* win32/win32.c (exit_handler): delete socklist only if it is
+	  initialized.
+
+	* win32/win32.c (rb_w32_sysinit, StartSockets): refactoring: move
+	  initialization of select_mutex to StartSockets().
+
+	* win32/win32.c (exit_handler): refactoring: delete select_mutex only
+	  if winsock is used.
+
+Thu Oct 20 22:38:53 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_pkcs5.c: add note on timing attacks and general
+	  documentation.
+
+Thu Oct 20 21:19:15 2011  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* vm_eval.c (check_funcall): set array elements one-by-one to fix
+	  compile error with Fujitsu C Compiler 5.6 on Solaris 10 on Sparc.
+	  [Bug #5464] [ruby-dev:44632]
+
+Thu Oct 20 13:09:35 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/defines.h (flush_register_windows): use software
+	  trap on Debian Sparc 32-bit userspace.  [Bug #5244]
+
+Thu Oct 20 12:28:22 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* test/openssl/test_pkcs5.rb: add RFC 6070 tests for PBKDF2 with
+	  HMAC-SHA1
+
+Thu Oct 20 11:42:23 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* util.c (mmprepare): fix for fragmental size.
+
+	* util.c (mmswap_, mmrot3_): portability improvement.
+
+Thu Oct 20 05:58:02 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/openssl/ossl_ns_spki.c (Init_ossl_ns_spki):  Stub documentation
+	  for Netscape SPKI.
+
+Thu Oct 20 05:13:39 2011  Ryan Davis  <ryand-ruby@zenspider.com>
+
+	* lib/minitest/*: Imported minitest 2.6.2 (r6712)
+	* test/minitest/*: ditto
+
+Thu Oct 20 06:55:32 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* lib/openssl/buffering.rb: Force multi-byte strings to be treated as
+	  binary data.
+	* test/openssl/test_ssl.rb: Add test for it.
+
+	Thanks to Niklas Baumstark for reporting the issue!
+
+	[Ruby 1.9 - Bug #5233] [ruby-core:39120]
+
+Wed Oct 19 17:06:54 2011  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* version.h (RUBY_VERSION): finally declare start of 2.0 work!
+
+Wed Oct 19 11:48:44 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* error.c (Init_Exception):  Document $! and $@.  Provide
+	  recommendations for creating exceptions for a library.
+
+Wed Oct 19 11:25:46 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* error.c (Init_Exception):  Add hierarchy of Exception subclasses.
+	  Based on patch by Sylvain Daubert.  [Ruby 1.9 - Bug #5438]
+
+Wed Oct 19 11:04:47 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* enum.c: Reformat block args to a single standard, { |args| ... }.
+	  Patch by b t.  [Ruby 1.9 - Bug #5393]
+
+Wed Oct 19 12:11:26 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_ssl.c: Remove set, but unused variables.
+	  ext/openssl/ossl_pkey.c: ditto
+
+	* ext/openssl/ossl_pkey_dh.c: Make functions passed to
+	  rb_thread_blocking_region return VALUE instead of void.
+	  ext/openssl/ossl_pkey_dsa.c: ditto
+	  ext/openssl/ossl_pkey_rsa.c: ditto
+
+Tue Oct 18 23:28:53 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (identhash): share with type_numhash.
+
+	* st.c (st_hashtype_num): rename from type_numhash.
+
+Tue Oct 18 23:07:30 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_core.h (ruby_current_thread): probeprofiler has been removed
+	  long ago.
+
+Tue Oct 18 23:05:49 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/ripper/eventids2.c (ripper_init_eventids2): separate
+	  initializations of IDs and objects.
+
+	* ext/ripper/tools/generate.rb (generate_eventids1): ditto.
+
+	* parse.y (Init_ripper, InitVM_ripper): fix inversed roles.
+
+Sun Oct 16 19:46:16 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/bigdecimal/bigdecimal.gemspec (files): fixed typo, and
+	  removed nonexistent file.
+
+	* ext/bigdecimal/bigdecimal.gemspec (homepage): added.
+
+	* ext/io/console/io-console.gemspec (homepage): ditto.
+
+Fri Oct 14 12:13:57 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/pty/pty.c (pty_check): should return nil until the child
+	  terminates or stops.  [ruby-dev:44600] [Bug #2642]
+
+Fri Oct 14 11:19:37 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/intern.h (rb_ary_rotate): export.
+
+Fri Oct 14 05:58:05 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* atomic.h (ATOMIC_INC, ATOMIC_DEC): return old values.
+	  [ruby-dev:44596] [Bug #5439]
+
+	* signal.c (ruby_atomic_exchange): no needs to define on the
+	  platforms where atomic.h is available.
+
+Thu Oct 13 19:29:40 2011  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* atomic.h (ATOMIC_*): use atomic_ops(3C) when SunStudio on Solaris.
+	  [ruby-dev:44596] [Bug #5439]
+
+Thu Oct 13 18:13:04 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* atomic.h(ATOMIC_SET): add cast to void to prevent misuse.
+	  [ruby-dev:44596] [Bug #5439]
+
+Thu Oct 13 18:04:27 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (rb_gc_finalize_deferred, rb_objspace_call_finalizer):
+	  should use ATOMIC_EXCHANGE() to check the previous value.
+	  [ruby-dev:44596] [Bug #5439]
+
+Wed Oct 12 23:39:58 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* test/openssl/test_ssl.rb: Move duplicated tests for SSL::Session to
+	  test_ssl_session.rb
+
+Tue Oct 11 08:49:40 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* array.c (rb_ary_initialize):  Improve explanation of Array.new
+	  parameters.  Patch by Alvaro Pereyra Rabanal.  [Ruby 1.9 - Bug #5425]
+	* array.c (rb_ary_s_try_convert):  Fix typo (try => tries)
+	* array.c (rb_ary_rindex):  Add spacing for block.
+	* array.c (rb_ary_uniq_bang):  Describe block
+	* array.c (rb_ary_uniq):  ditto
+
+Tue Oct 11 07:55:38 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* array.c:  Add a description to Array, minor cleanups.  Patch by
+	  Andrea Singh.  [Ruby 1.9 - Bug #5412]
+
+Tue Oct 11 06:09:52 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/pp.rb:  Move PP documentation to top of class PP.  Patch by
+	  Sylvain Daubert.  [Ruby 1.9 - Bug #5430]
+
+Tue Oct 11 06:06:29 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/coverage/coverage.c (Init_coverage):  Change list format and
+	  describe Coverage.result output.  Patch by Sylvain Daubert.
+	  [Ruby 1.9 - Bug #5428]
+
+Tue Oct 11 05:53:23 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* object.c (Init_Object):  Add reference to BasicObject, brief
+	  explanation of constant lookup.  Based on patch by Alvaro Pereyra
+	  Rabanal.
+	  [Ruby 1.9 - Bug #5426]
+
+Sun Oct  9 11:06:52 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* test/psych/test_yamldbm.rb: don't run test if the system
+	  don't support yaml/dbm.
+
+	* test/syck/test_yamldbm.rb: ditto.
+
+Sat Oct  8 08:54:56 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* enum.c (group_by):  Improve group_by description.  Patch by b t.
+	  [#5411]
+
+Sat Oct  8 03:17:51 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/shell.rb:  Document some methods of Shell.  Patch by Carol
+	  Nichols.  [Ruby 1.9 - Bug #5417]
+
+Fri Oct  7 17:54:28 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit/assertions.rb (assert_send, assert_not_send):
+	  parenthesize non-empty arguments.
+
+Fri Oct  7 06:35:50 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* array.c:  Use + for arguments described in documentation to allow
+	  rdoc -C2 to work better.  Remove <code> from method references to
+	  allow cross-references in HTML documentation.
+
+Thu Oct  6 18:46:23 2011  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* vm_eval.c (make_no_method_exception): fix typo.
+
+	* vm_insnhelper.c, vm_insnhelper.h: ditto.
+
+Thu Oct  6 16:29:30 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (make_no_method_execption): extract from
+	  raise_method_missing().
+
+	* vm_eval.c (send_internal): remove inadvertent symbol creation
+	  from public_send.  based on a patch by Jeremy Evans <code AT
+	  jeremyevans.net> in [ruby-core:38576]. [Feature #5112]
+
+	* vm_insnhelper.c (vm_call_method): remove inadvertent symbol
+	  creation from send and __send__, too.
+
+Thu Oct  6 14:59:11 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/time.rb:  Clean up Time documentation.  Patch by Jake Goulding.
+	  [Ruby 1.9 - Bug #5416]
+
+Thu Oct  6 10:00:54 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* enum.c (group_by):  Improve documentation based on patch by b t.
+
+Thu Oct  6 09:56:30 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* enum.c:  Clean up wording in Enumerable documentation.  Patch by b t.
+	  [Ruby 1.9 - Bug #5411]
+
+Thu Oct  6 09:17:18 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* time.c (Init_Time):  Remove editorial comments from Time
+	  documentation, fix link.
+
+Thu Oct  6 09:14:20 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* time.c (Init_Time):  Improve Time documentation.  Patch by Shane
+	  Emmons.  [Ruby 1.9 - Bug #5404]
+	* lib/time.rb:  Improve time.rb documentation including Time.strptime.
+	  Patch by Shane Emmons.  [Ruby 1.9 - Bug #5402]
+
+Thu Oct  6 08:54:05 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* random.c:  Improve documentation of Random.  Patch by Gregory
+	  Parkhurst.  [Ruby 1.9 - Bug #5410]
+
+Thu Oct  6 01:44:51 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* cont.c (cont_mark): mark original Thread object from saved_thread.
+	  [ruby-dev:44571] [Bug #5386]
+
+Wed Oct  5 16:33:04 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_call_cfunc): remove useless hack.
+
+Wed Oct  5 05:56:39 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* hash.c (Init_Hash):  Improve Hash documentation.  Patch by Alvaro
+	  Pereyra Rabanal.  [Ruby 1.9 - Bug #5405]
+
+Wed Oct  5 05:47:59 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* random.c (Init_Random):  Add a top-level comment for Random.  Patch
+	  by Brett Bim.  [Ruby 1.9 - Bug #5403]
+
+Wed Oct  5 02:50:27 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/syntax_error.rb: Add file, line, offset, and
+	  message attributes during parse failure.
+	* ext/psych/parser.c: Update parser to raise exception with correct
+	  values.
+	* test/psych/test_exception.rb: corresponding tests.
+
+Wed Oct  5 01:52:16 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/parser.c (parse): Use context_mark for indicating error
+	  line and column.
+
+Wed Oct  5 01:22:08 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/scalar_scanner.rb: use normal begin / rescue
+	  since postfix rescue cannot receive the exception class. Thanks
+	  nagachika!
+
+Tue Oct  4 21:10:08 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (class_alloc): allocate extra memory after containing
+	  object setup to get rid of rare-but-potential memory leak.
+
+	* gc.c (gc_mark_children): skip marking extended members if ptr is
+	  NULL.
+
+Tue Oct  4 16:17:50 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/time.rb (Time.strptime): use Time.at if d[:seconds] is set.
+	  Reported by Christopher Eberz. [ruby-core:39903] Bug #5399
+
+Tue Oct  4 11:44:10 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* gc.c (rb_gc_set_params): ruby_verbose can be Qnil, so use RTEST.
+
+Tue Oct  4 08:33:41 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/etc/etc.c:  Document Etc, Etc.sysconfdir, Etc.systmpdir.  Patch
+	  by mathew murphy.  [Ruby 1.9 - Bug #5396]
+
+Tue Oct  4 08:21:51 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/shellwords.rb:  Update toplevel comment with an example.  Patch
+	  by Samnang Chhun.  [Ruby 1.9 - Bug #5388]
+
+Tue Oct  4 08:15:50 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* proc.c (proc_call):  Update documentation to match argument handling
+	  of proc/Proc.new/lambda/->()
+
+Tue Oct  4 07:59:16 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* proc.c (proc_call):  Fix documentation of Proc#call vs Proc#===.
+	  [Ruby 1.9 - Bug #5349]
+
+Tue Oct  4 07:43:18 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* array.c (rb_ary_initialize):  Make Array.new description match
+	  call-seq.  Patch by Henry Maddocks.  [Ruby 1.9 - Bug #5344]
+
+Tue Oct  4 07:35:23 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* array.c (rb_ary_initialize):  Add output for examples.  Patch by
+	  Jonathan Mukai.  [Ruby 1.9 - Bug #5216]
+
+Tue Oct  4 07:30:50 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* array.c (rb_ary_s_create):  Add example results for Array::[].  Patch
+	  by Jonathan Mukai.  [Ruby 1.9 - Bug #5215]
+
+Tue Oct  4 07:15:17 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems 1.8.11.  Move Deprecate into the
+	  Gem namespace.
+
+Tue Oct  4 06:43:47 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb: update psych version.
+	* ext/psych/psych.gemspec: generate new gemspec for new version.
+
+Tue Oct  4 06:29:55 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb: calling `yaml` rather than `to_yaml`.
+	* ext/psych/lib/psych/nodes/node.rb: Rename `to_yaml` to just `yaml`
+	  in order to avoid YAML::ENGINE switching from replacing this method.
+	* test/psych/helper.rb: fix tests for method name change.
+	* test/psych/test_document.rb: ditto
+	* test/psych/visitors/test_emitter.rb: ditto
+
+Tue Oct  4 06:20:19 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/scalar_scanner.rb: Match values against the
+	  floating point spec defined in YAML to avoid erroneous parses.
+	* test/psych/test_numeric.rb: corresponding test.
+
+Tue Oct  4 05:59:24 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: ToRuby visitor can be
+	  constructed with a ScalarScanner.
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: ScalarScanner can be
+	  passed to the YAMLTree visitor.
+
+Tue Oct  4 05:47:23 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: Define Regexp::NOENCODING
+	  for 1.9.2 backwards compatibility.
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: Fix Date string
+	  generation for 1.9.2 backwards compatibility.
+
+Mon Oct  3 23:56:39 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* gc.c (rb_gc_set_params): output GC parameter change messages only
+	  if -w/-v options are specified. these messages are output to stderr,
+	  not to stdout. [ruby-core:39795] [Bug #5380]
+
+	* test/ruby/test_gc.rb (test_gc_parameter): add test for it.
+
+Sun Oct  2 20:05:32 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm.c (rb_thread_mark), cont.c (cont_mark): revert r33369 and r33371
+	  that may cause SEGV in certain environments.
+
+Sun Oct  2 12:14:06 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* test/psych/test_yamldbm.rb: add test case.
+	* test/syck/test_yamldbm.rb: ditto.
+
+Sun Oct  2 11:28:09 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* lib/yaml/store.rb: make initialize method signature match the
+	  superclass signature.
+
+Sun Oct  2 10:44:01 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* io.c: fix documentation of ARGF.lineno=.
+
+Sat Oct  1 20:03:19 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (have_framework): try as Objective-C.
+	  https://twitter.com/nagachika/status/120294447660539904
+
+Sun Oct  2 08:43:25 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm.c (rb_thread_mark), cont.c (cont_mark): self pointer should not
+	  be marked by itself. Patch by Koichi Sasada.
+	  [ruby-dev:44567] [Bug #5386]
+
+Sun Oct  2 00:42:14 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm.c (rb_thread_mark): rb_thread_t needs self to be marked.
+	  [ruby-dev:44566] [Bug #5386]
+
+Sat Oct  1 09:48:53 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* gc.c (add_heap_slots, init_heap): reset heaps_inc zero when
+	  heap slots are expanded by environment variable RUBY_HEAP_MIN_SLOTS.
+	  [ruby-core:39777] [Bug #5380]
+
+	* test/ruby/test_gc.rb (test_gc_parameter): add test for it.
+
+	* test/ruby/envutil.rb (assert_normal_exit): add :child_env option to
+	  enable pass environment variables to child process.
+
+Thu Sep 29 13:17:51 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (ary_join_1): should not copy the encoding of non-string
+	  element after string element.  [ruby-core:39776] [Bug #5379]
+
+Thu Sep 29 11:53:56 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (slot_sweep, rb_gc_finalize_deferred)
+	  (rb_objspace_call_finalizer, rb_gc): run finalizers
+	  sequentially.  [ruby-dev:44562]
+
+Thu Sep 29 20:37:38 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/gdbm/gdbm.c (rb_gdbm_fatal): adjust argument type.
+
+Thu Sep 29 20:10:42 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (is_id_value, is_live_object): extract from id2ref().
+
+	* gc.c (run_finalizer): use object instead of object id.
+
+Thu Sep 29 20:07:36 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* use RB_TYPE_P which is optimized for constant types, instead of
+	  comparison with TYPE.
+
+Wed Sep 28 09:20:37 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (pthread_np.h): needs pthread.h to be included
+	  previously on OpenBSD.  a patch by George Koehler <xkernigh AT
+	  netscape.net> at [ruby-core:39752].  [Bug #5376]
+
+Wed Sep 28 04:41:35 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* test/psych/test_yamlstore.rb: use tmpdir for tmpfile.
+	* test/syck/test_yamlstore.rb: ditto.
+
+Wed Sep 28 04:10:46 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* ext/bigdecimal/README: update report to.
+
+Tue Sep 28 04:05:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal_en.html: removed because this file isn't
+	  maintained now.
+
+	* ext/bigdecimal/bigdecimal_ja.html: ditto.
+
+Tue Sep 27 09:55:40 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread_pthread.c: make native_fd_select().
+	* thread.c (do_select): remove #ifdef _WIN32. Instead, use
+	  native_fd_select() always.
+
+Tue Sep 27 09:44:59 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (do_select): remove cygwin specific hack. It's layer
+	  violation and too large hack.
+	* thread.c (cmp_tv, subtract_tv): removed.
+
+Tue Sep 27 03:50:19 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* test/rexml/test_sax.rb: add require 'rexml/document'.
+
+Tue Sep 27 03:32:27 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* test/psych/test_yamldbm.rb: fix #setup and #teardown.
+	  [Bug #5370] [ruby-core:39730]
+	* test/syck/test_yamldbm.rb: ditto.
+
+Mon Sep 26 11:27:38 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/webrick/httputils.rb: Add MIME Type definition of .js and .svg.
+	  patched by Hal Brodigan. [ruby-core:39704] [Bug #5365]
+
+Mon Sep 26 09:20:44 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: remove DJGPP support. It's not longer supported
+	  since ruby 1.9.0.
+
+Mon Sep 26 09:07:46 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* include/ruby/defines.h: remove NextStep, OpenStep, Rhapsody
+	  support. Last activity of their OSes are 7 years ago.
+	* configure.in: ditto.
+	* dir.c: ditto.
+	* ext/tk/extconf.rb: ditto.
+
+Mon Sep 26 09:02:49 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: remove a code for human68k. it's no longer
+	  supported since r19677.
+
+Sun Sep 25 23:43:32 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_asn1.c: fix int_ossl_asn1_decode0_cons when being
+	  fed arbitrary string values.
+	  Clearly distinguish between the cases "universal, infinite and
+	  not a SEQUENCE or SET" and "universal SEQUENCE or SET, possibly
+	  infinite". Raise error for universal tags that are not infinite.
+	* test/openssl/test_asn1.rb: add a test for this.
+
+	  Thanks to Hiroshi Yoshida for reporting this bug.
+	  [Bug #5363] [ruby-dev:44542]
+
+Sun Sep 25 20:57:18 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* test/syck/test/yamldbm.rb: add test for Syck::DBM.
+	* test/psych/test_yamldbm.rb: add test for Psych::DBM.
+	* test/psych/test_yamlstore.rb: add test for Psych::PStore.
+
+Sun Sep 25 20:54:10 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* lib/yaml/dbm/dbm.rb: fix #update, add #key for using instead #index.
+	  [Bug #5305][ruby-dev:44485]
+
+Sun Sep 25 16:54:33 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* encoding.c (require_enc): reject only loading from untrusted
+	  load paths.  [ruby-dev:44541] [Bug #5279]
+
+	* transcode.c (load_transcoder_entry): ditto.
+
+Sun Sep 25 16:45:05 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: ignore all warnings from an arbitrary
+	  header in /usr/local/include.
+
+Sun Sep 25 03:43:03 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* enum.c (slice_before_i): use rb_attr_get to suppress wrong warning
+	  for internal instance variable slicebefore_initial_state.
+
+Fri Sep 23 14:20:14 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_asn1.c: remove unused variable.
+
+Fri Sep 23 13:46:59 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* test/openssl/test_ssl_session.rb: execute test_session_exts_read
+	  only for OpenSSL versions >= 0.9.8k. Thanks, Eric Wong, for
+	  reporting this.
+	  [Bug #4961] [ruby-core:37726]
+
+Fri Sep 23 11:59:08 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* test/openssl/test_ssl_session.rb: ensure server calls callbacks in
+	  test_ctx_server_session_cb. Thanks to Eric Wong for the patch.
+	  [Bug #5336] [ruby-core:39619]
+
+Thu Sep 22 02:53:19 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_call_cfunc): suppress a warning.  note that
+	  `volatile type *var' doesn't make var itself volatile.
+
+Thu Sep 22 01:52:48 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* thread_pthread.c (ubf_select): activate timer thread when interrupt
+	  blocking thread.
+	  A patch created by Koichi Sasada. [ruby-core:39634] [Bug #5343]
+	  to cover race condition, timer thread periodically send SIGVTARLM to
+	  threads in signal thread list. so you should activate timer thread
+	  when interrupt a thread.
+
+Wed Sep 21 16:55:26 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/io/wait/test_io_wait.rb (TestIOWait#setup): of course, the
+	  behavior of mingw is just same with mswin.
+
+Tue Sep 20 18:08:51 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_get_cvar_base): reduce duplicated checks and
+	  move a warning outside the loop.
+
+Mon Sep 19 18:55:51 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* lib/fileutils.rb (module FileUtils): improve performance of
+	  FileUtils.compare_stream. a patch by Masaki Matsushita.
+	  [Feature #5337] [ruby-core:39622]
+
+Mon Sep 19 18:42:58 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/-ext-/old_thread_select/test_old_thread_select.rb:
+	  select() with timeout may return early in old Linux kernels
+	  with 250 Hz tickrate and no dynticks, so skip everything older
+	  than 2.6.32 (which has long term support).
+	  And, Make the timing assertions consistently use assert_operator with
+	  timing difference in error message
+	  Patch by Eric Wong. [Bug #5335] [ruby-core:39618]
+
+Mon Sep 19 09:28:06 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* test/openssl/test_ssl.rb (class OpenSSL):  Test
+	  OpenSSL::SSL::SSLSocket#session and #session=.
+
+Mon Sep 19 07:54:17 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_obj_clone): singleton class should be attached
+	  singleton object to.  a patch by Satoshi Shiba <shiba AT rvm.jp>
+	  at [ruby-dev:44460].  [Bug #5274]
+
+Sat Sep 17 23:34:10 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_data_type): inherit the core type in ripper so
+	  that checks in core would work.  [ruby-core:39591] [Bug #5331]
+
+Sat Sep 17 12:44:04 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* lib/find.rb (Find.find): add documentation that Find.find
+	  without block returns an enumerator.
+
+Thu Sep 15 11:39:43 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (mark_entry, mark_key, mark_keyvalue): adjust callback
+	  argument types.
+
+Thu Sep 15 01:44:10 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* ext/tk/*: Change encoding from EUC-JP to UTF-8
+
+Wed Sep 14 11:43:37 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_fd_rcopy): added an argument guard.
+	  Patch by NAKAMURA Usaku. [Bug #5306] [ruby-core:39435]
+
+Tue Sep 13 20:21:49 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/pstore.rb, test/test_pstore.rb: suppress warnings with -v.
+
+	* lib/pstore.rb (PStore): always open in binary mode even if
+	  default encodings are set.  [Bug #5311] [ruby-core:39503]
+
+Tue Sep 13 05:37:15 2011  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* io.c (Init_IO): update BINARY comment.  it should not change the
+	  encoding of the result to ASCII-8BIT.  [ruby-talk:387719]
+
+Mon Sep 12 19:55:00 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_thread_select): fix to ignore an argument
+	  modification of rb_thread_fd_select().
+	  based on a patch by Eric Wong. [Bug #5306] [ruby-core:39435]
+	* thread.c (rb_fd_rcopy): New. for reverse fd copy.
+
+	* test/-ext-/old_thread_select/test_old_thread_select.rb
+	(test_old_select_false_positive): test for bug5306.
+
+	* ext/-test-/old_thread_select/old_thread_select.c (fdset2array):
+	  New. convert fdsets to array.
+	* ext/-test-/old_thread_select/old_thread_select.c (old_thread_select):
+	  return 'read', 'write', 'except' argument of rb_thread_select()
+	  to ruby script.
+
+Mon Sep 12 13:38:12 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* README.EXT, README.EXT.ja (2.2.2), parse.y (rb_check_id): add
+	  documents for rb_check_id().
+
+Mon Sep 12 12:53:39 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/rake/file_list.rb (Rake::FileList#egrep): there is no need to
+	  open files in binary mode.
+	  see more details in https://github.com/jimweirich/rake/issues/74
+
+Mon Sep 12 12:42:36 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/test_exception.rb (TestException#test_exit_success_p):
+	  assert also the cases when exiting with true and false.
+
+	* lib/test/unit/assertions.rb (assert_send): make arguments in
+	  the default message clearer.
+
+Sun Sep 11 05:23:14 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb: Deal with subclasses of Matrix [redmine #5307]
+
+Sat Sep 10 13:38:20 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* dir.c (dir_s_aref):
+	* dir.c (dir_entries): Two small documentation fixes.
+	  A patch from Aaron Lerch. [Bug #5302] [ruby-core:39404]
+
+Sat Sep 10 08:30:03 2011  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (GC_PROFILE_MORE_DETAIL, CALC_EXACT_MALLOC_SIZE):
+	  define macros only if they are not defined.
+	  fixes: [Ruby 1.9 - Feature #5291]
+
+Sat Sep 10 08:25:47 2011  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* parse.y (bv_decls): parse.y relies on $$ = $1 before action
+	  routines.  a patch from Michael Edgar.  [Bug #5303]
+	  [ruby-core:39429]
+
+Sat Sep 10 01:37:55 2011  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* sample/drb/dhasenc.rb: coding cookie of Emacs is coding,
+	  not encoding.
+
+	* sample/mine.rb: ditto.
+
+Fri Sep  9 21:56:40 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_sqrt): Fix comment.
+	  BigDecimal#sqrt requires argument. Reported by Makoto Kishimoto.
+	  Thanks for your contribution. [Bug #5267] [ruby-dev:44452]
+
+Fri Sep  9 11:00:55 2011  Shota Fukumori  <sorah@tubusu.net>
+
+	* test/rubygems/test_gem_commands_help_command.rb: Add one
+	  `require` because if run test-all with test/unit parallel
+	  running, sometimes this test fails by some constants not found.
+	  The error reason is some worker doesn't require the file needed by
+	  this test. This issue is related to [ruby-core:36168].
+
+Fri Sep  9 10:22:03 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread.c (rb_thread_select): fix a typo to initialize efds
+	  properly.  [Bug #5299] [ruby-core:39380]
+
+Fri Sep  9 02:02:09 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* template/yarvarch.ja:
+	  Change encoding from Shift_JIS to UTF-8
+
+Thu Sep  9 01:14:00 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* sample/drb/README.rd.ja:
+	* sample/drb/dhasenc.rb:
+	* sample/mine.rb:
+	  Change encoding from EUC-JP to UTF-8
+
+Thu Sep  8 21:03:22 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/nkf/nkf-utf8/nkf.c: import nkf 2.1.2 (be9c280)
+	  Bump version number/release date only.
+
+Thu Sep  8 12:43:18 2011  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (Init_GC): defined GC::Profiler.raw_data. based on the
+	  patch by Eric Hodel. [ruby-core:37857] [Bug #4991]
+
+Thu Sep  8 09:02:53 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (id2ref): objects which are unmarked but not in sweep_slots
+	  are not dead.
+
+Thu Sep  8 07:44:25 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* transcode.c (rb_declare_transcoder, load_transcoder_entry): no
+	  longer need to limit the length of transcoder library name.
+
+Thu Sep  8 07:36:36 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/syck/lib/syck/types.rb: use toplevel Syck.
+	  for the case someone define Syck::Syck (or YAML::Syck).
+
+Thu Sep  8 07:33:12 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (id2ref): unmarked object is already dead while lazy
+	  sweeping, and to it cannot come back since other objects
+	  referred from it might have been freed already.
+
+Wed Sep  8 03:48:00 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* ext/readline/README.ja:
+	  Change encoding from EUC-JP to UTF-8
+
+Wed Sep  8 02:59:00 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* test/rexml/test_encoding.rb:
+	  Add require 'require 'rexml/document'
+
+Wed Sep  8 02:53:00 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* ext/nkf/nkf-utf8/nkf.c:
+	  Change encoding from ISO-2022 to UTF-8
+
+Wed Sep  7 23:41:24 2011  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/baseparser.rb, test/rexml/test_comment.rb:
+	  allow a single hyphen in comment. [Bug #5278] [ruby-core:39289]
+	  Reported by Thomas Fritzsche. Thanks!!!
+
+Wed Sep  7 17:27:18 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/yaml.rb: explicitly specify ::Object to avoid the collision with
+	  Syck::Object.
+
+Tue Sep  6 21:06:49 2011  Shota Fukumori  <sorah@tubusu.net>
+
+	* lib/test/unit.rb (_run_suites): Now reports are written the
+	  following order: Skip, Failure, Error. [Feature #5282]
+
+	* test_sorting.rb: test for above.
+
+	* test4test_sorting.rb: Ditto.
+
+	* lib/test/unit.rb (run): Put RUBY_DESCRIPTION before quitting.
+	  [Feature #5282]
+
+Tue Sep  6 21:13:47 2011  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* win32/Makefile.sub (INSNS): change command line option -Ks to -Ku
+	  for generate *.inc. because insns.def encoding has been changed SJIS
+	  to UTF-8. if $BASERUBY is 1.9, -Ks cause an error. [Feature #5128]
+	  (same as r33194)
+
+Tue Sep  6 15:55:24 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* transcode.c (load_transcoder_entry): concatenate paths directly.
+
+	* encoding.c (load_encoding): predefined encoding names are safe.
+	  [ruby-dev:44469] [Bug #5279]
+
+	* transcode.c (load_transcoder_entry): ditto.
+
+Tue Sep  6 12:07:10 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* transcode.c: enabled econv newline option.
+
+Tue Sep  6 06:44:57 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* numeric.c (dbl2ival): Fix Float#divmod and #round for 32 bit
+	  platform. part 1 of [bug #5276]
+
+Tue Sep  6 06:44:25 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* numeric.c (flo_round): Fix criteria for 32 bits platform
+	  part 2 of [bug #5276]
+
+Tue Sep  6 05:37:11 2011  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+
+	* test/rinda/test_rinda.rb (test_core_03_notify): Fixed test failures
+	  [ruby-dev:44430] [Ruby 1.9 - Bug #372]
+
+Mon Sep  5 20:59:30 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* insns.def: change encoding pragma for emacs (shift_jis to utf-8).
+
+Mon Sep  5 19:32:15 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* Makefile.in (INSNS): change command line option -Ks to -Ku for
+	  generate *.inc. because insns.def encoding has been changed SJIS to
+	  UTF-8. if $BASERUBY is 1.9, -Ks cause an error. [Feature #5128]
+
+Mon Sep  5 18:10:56 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* transcode.c (rb_econv_binmode): newline decorators are
+	  exclusive.
+
+Mon Sep  5 15:03:37 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* test/rubygems/test_gem_security.rb
+	  (test_class_build_self_signed_cert): reset opt[:trust_dir] to apply
+	  temporary Gem.user_home.
+
+Mon Sep  5 10:04:35 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* README.ja, README.EXT.ja: resolve conflicts. [ruby-dev:44459]
+
+Mon Sep  5 05:13:22 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* numeric.c (flo_round): Make Float#round round big values [bug
+	  #5272]
+
+Mon Sep  5 04:28:25 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* numeric.c (int_round): Integer#round always returns an Integer [Bug
+	  #5271]
+
+Sun Sep  4 22:28:50 2011  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/imap.rb (default_port, default_imap_port,
+	  default_tls_port, default_ssl_port, default_imaps_port):
+	  added methods for consistency with Net::POP.
+	  based on the patch by art lussos.  [ruby-core:38997] [Bug #5198]
+
+Sun Sep  4 21:19:19 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* Change encoding from EUC-JP to UTF-8. [Feature #5128]
+
+Sun Sep  4 00:47:39 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* test/ruby/test_fiber.rb (TestFiber#test_no_valid_cfp):
+	  add a test. Unlike TestThread#test_no_valid_cfp,
+	  this test succeeds even if win32ole is required (see r33153).
+
+Sun Sep  4 00:11:49 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* variable.c (rb_const_set): show the previous definition
+	  location.  [EXPERIMENTAL]
+
+Sat Sep  3 23:56:24 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (sizeof_struct_dirent_too_small): check if struct
+	  dirent.d_name is too small.
+
+	* configure.in (RUBY_MINGW32): take tool prefix from CC.
+
+Sat Sep  3 23:52:08 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (argf_next_argv): open in default text mode.
+	  [ruby-core:39234] [Bug #5268]
+
+Sat Sep  3 18:40:57 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* lib/thread.rb (SizedQueue#max=): raise ArgumentError if max is not
+	  positive number. patch by Masaki Matsushita.
+	  [ruby-dev:44449] [Bug #5259]
+
+	* test/thread/test_queue.rb (test_sized_queue_initialize,
+	  test_sized_queue_assign_max): add tests for it.
+
+Fri Sep  2 21:11:16 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (validate_enc_binmode, prep_stdio): default to text mode on
+	  dosish platforms.  [ruby-core:38822] [Bug #5164]
+
+	* transcode.c (rb_econv_prepare_options): keep default ecflags
+	  unchanged if no options.
+
+Fri Sep  2 14:36:47 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_search_const_defined_class): search
+	  ancestors only when global scope.  [ruby-core:39227] [Bug #5264]
+
+Fri Sep  2 09:58:08 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_tokadd_string, parser_yylex): ignore a backslash
+	  which prefixes an non-ascii character, which has no escape
+	  syntax.  [ruby-core:39222] [Ruby 1.9 - Bug #5262]
+
+Fri Sep  2 04:05:25 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: emit strings tagged as
+	  ascii-8bit as binary in YAML.
+	* test/psych/test_string.rb: corresponding test.
+
+Fri Sep  2 01:07:14 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* numeric.c (flo_round): substitute machine dependent magic number.
+
+Thu Sep  1 17:31:22 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* insns.def (defineclass), vm_insnhelper.c (vm_get_cvar_base): see
+	  also inherited constants for classes without superclass and
+	  modules.  [ruby-core:37698] [Bug #3423]
+
+Thu Sep  1 16:18:44 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* Release GVL while OpenSSL's public key generation.
+
+	    t = Thread.new { print "."; sleep 0.1 }
+	    key = OpenSSL::PKey::RSA.new(2048)
+	    #=> Thread t works in parallel with public key generation if
+		OS/machine allows it.
+
+	  This works with OpenSSL >= 0.9.8. From this version, it has new
+	  public key generation function which allows us to interrupt the
+	  execution while pkey generation iterations.
+
+	* ext/openssl/extconf.rb: Check existence of OpenSSL's new public key
+	  generation function. (DH_generate_parameters_ex,
+	  DSA_generate_parameters_ex and RSA_generate_key_ex.
+
+	* ext/openssl/ossl_pkey.{h,c} (ossl_generate_cb_2,
+	  ossl_generate_cb_stop): Added new callback function for OpenSSL pkey
+	  generation which handles Thread interruption by Ruby.
+	  ossl_generate_cb_stop is the unblock function(ubf) for Ruby which
+	  sets a stop flag. New pkey generation callback ossl_generate_cb_2
+	  checks the stop flag at each iterations of OpenSSL and interrupts
+	  pkey generation when the flag is set.
+
+	* ext/openssl/ossl_pkey_dsa.c (dsa_generate): Call
+	  rb_thread_blocking_region with the above unblock function to release
+	  GVL while pkey generation.
+
+	* ext/openssl/ossl_pkey_rsa.c (rsa_generate): ditto.
+
+	* ext/openssl/ossl_pkey_dh.c (dh_generate): ditto.
+
+	* test/openssl/test_pkey_{dh,dsa,rsa}.rb: Test it.
+
+Thu Sep  1 14:06:54 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_thread.rb (TestThread#test_no_valid_cfp): skip when
+	  win32ole is required.  in such case, win32ole redefines
+	  Thread#initialize, and the block argument becomes to be not the top
+	  of the thread, then this testcase always fails.
+
+Thu Sep  1 10:20:50 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_io_m17n.rb (TestIO_M17N#test_{default_mode_on_dosish,
+	  default_mode_on_unix,text_mode,binary_mode}): sorry for wrong test
+	  committed in r33144.  I'd misunderstood the spec of ruby's universal
+	  newline.
+
+Thu Sep  1 09:27:57 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* variable.c (rb_autoloading_value): Fix the order of definitions.
+	  It is used by autoload_defined_p.
+
+Wed Aug 31 17:28:23 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* variable.c (rb_autoload): There was a chance to run GC (from
+	  rb_str_new2()) before finishing autoload_data_i construction. It
+	  caused SEGV at rb_gc_mark() at autoload_i_mark.
+
+	* variable.c (rb_autoload_load): Move RB_GC_GUARD() to proper
+	  position based on suggestion by CHIKANAGA Tomoyuki at
+	 http://d.hatena.ne.jp/nagachika/20110826/ruby_trunk_changes_33070_33078
+
+	* variable.c (autoload_defined_p): Fix incompatible autoload behavior
+	  that causes Rails crash. Class definition instruction defined in
+	  'defineclass' in insns.def always invokes rb_autoload_load for a
+	  constant. It's invoked for every class definition regardless of
+	  existence of autoload definition. rb_autoload_load checks if a
+	  constant is defined as autoloaded, but new thread-safe autoload
+	  returned different value if the constant is under autoloading.
+
+Wed Aug 31 17:20:56 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* Re-apply r33078, thread-safe autoload which is reverted at r33093.
+
+Wed Aug 31 16:28:04 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_io_m17n.rb (TestIO_M17N#test_{default_mode_on_dosish,
+	  default_mode_on_unix,text_mode,binary_mode}): tests for [Bug #5164].
+
+Wed Aug 31 15:54:11 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/json: Merge json gem v1.5.4 (3dab4c5a6a97fac03dac).
+
+Wed Aug 31 13:09:41 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* numeric.c (flo_round): Avoid overflow by optimizing for trivial
+	  cases [Bug #5227]
+
+Wed Aug 31 00:50:01 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_select_with_thread): and my typo. we all must
+	  be more careful.
+
+Wed Aug 31 00:48:38 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* thread.c (rb_thread_select): critical typo in r33117.
+
+Wed Aug 31 00:30:49 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/-ext-/old_thread_select/test_old_thread_select.rb
+	  (TestOldThreadSelect#test_old_select_read_timeout): if the machine
+	  is fast enough, the time used by code around IO.select may be smaller
+	  than Time implement threshold.
+
+Wed Aug 31 00:04:38 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/-test-/old_thread_select/old_thread_select.c (old_thread_select):
+	  typo.
+
+	* test/-ext-/old_thread_select/test_old_thread_select.rb
+	  (TestOldThreadSelect#test_old_select_signal_safe): use SIGINT instead
+	  of SIGUSR1 because the former is general and the latter is platform
+	  dependent.
+
+Tue Aug 30 23:59:36 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c, include/ruby/intern.h (rb_w32_fd_copy): implement
+	  for rb_thread_select() in thread.c.  the use of rb_fd_copy() is
+	  introduced in r33117.
+	  [Bug #5251] [ruby-core:39195]
+
+	* thread.c (rb_thread_select): must call rb_fd_init() before using
+	  rb_fdset_t.  see the implementations of rb_fd_init()s if you want to
+	  know the reason.
+
+Tue Aug 30 22:34:45 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* test/dl/test_callback.rb (test_callback_with_string): prevents
+	  temporary string from GC.
+
+Tue Aug 30 22:25:38 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_call_cfunc): revert r33112.  RB_GC_GUARD macro
+	  protect a VALUE from GC.  It's not for general anti-optimizing
+	  purpose.
+
+Tue Aug 30 11:06:19 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/json: Merge json gem 1.5.4+ (2149f4185c598fb97db1).
+	  [Bug #5173] [ruby-core:38866]
+
+Tue Aug 30 09:57:50 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* lib/thread.rb (Queue#pop): fix a race against Thread.wakeup.
+	  Patch by Masaki Matsushita <glass.saga at gmail dot com>
+	  [Bug #5195] [ruby-dev:44400]
+
+Tue Aug 30 09:48:07 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* cont.c (fiber_entry): fix stack allocation failure on Debian
+	  GNU/kFreeBSD.
+	  Patch by Lucas Nussbaum <lucas at lucas-nussbaum dot net>.
+	  [Bug #5241] [ruby-core:39147]
+
+Tue Aug 30 09:28:01 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_thread_select): rewrite by using
+	  rb_thread_fd_select(). old one is EINTR unsafe.
+	  Patch by Eric Wong. [Bug #5229] [ruby-core:39102]
+
+	* test/-ext-/old_thread_select/test_old_thread_select.rb:
+	  a testcase for rb_thread_select().
+	* ext/-test-/old_thread_select/old_thread_select.c: ditto.
+	* ext/-test-/old_thread_select/depend: ditto.
+	* ext/-test-/old_thread_select/extconf.rb: ditto.
+
+Tue Aug 30 09:08:22 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: fix a build failure on GNU Hurd.
+	  Patch by Samuel Thibault <sthibault at debian dot org>. Thank you!
+	  [Bug #5250] [ruby-core:39185]
+
+Sun Aug 29 23:22:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* test/ruby/test_numeric.rb (test_num2long): modify a test against the
+	  change by r33108.
+
+Sun Aug 29 09:58:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* numeric.c (bit_coerce): A Fixnum and a Bignum are only permitted for
+	 bitwise arithmetic with a Fixnum.  #1792
+
+	* test/ruby/test_fixnum.rb: add tests for the above change.
+
+	* bignum.c (bit_coerce): A Fixnum and a Bignum are only permitted for
+	 bitwise arithmetic with a Bignum.  #1792
+
+	* test/ruby/test_bignum.rb: add tests for the above change.
+
+Sun Aug 28 15:38:17 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* ext/date/date_parse.c (date_zone_to_diff): keep a temporary string
+	  stored in variable while the contents buffer is being used.
+
+	* ext/date/date_parse.c (date_zone_to_diff): get rid of out of bounds
+	  memory read. [ruby-dev:44409] [Bug #5213]
+
+Sun Aug 28 05:29:50 2011  Ryan Davis  <ryand-ruby@zenspider.com>
+
+	* lib/minitest/*: Imported minitest 2.5.1 (r6596)
+	* test/minitest/*: ditto
+
+Sat Aug 27 20:46:05 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm.c (rb_vm_rewrite_dfp_in_errinfo): change return type
+	  to suppress a warning.
+
+	* vm_core.h: ditto.
+
+Sat Aug 27 19:04:06 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* internal.h (rb_strftime_timespec): moved from time.c and define only
+	  if ruby/encoding.h is included.
+
+	* internal.h (rb_strftime): ditto.
+
+Sat Aug 27 18:53:51 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* proc.c (proc_new): force to rewrite errinfo when calling Proc.new in ensure.
+	  [Bug #5234] [ruby-core:39125]
+	  This code will be removed after changing throw mechanism (see r33064).
+
+	* vm.c (rb_vm_rewrite_dfp_in_errinfo): new function.
+
+	* vm.c (vm_make_env_each): changed accordingly.
+
+	* vm_core.h: ditto.
+
+	* bootstraptest/test_flow.rb: add tests for above.
+
+Sat Aug 27 18:44:06 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* internal.h (rb_strftime_timespec): move to time.c because it depends
+	  encoding.h.
+
+Sat Aug 27 18:17:58 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* strftime.c (rb_strftime_with_timespec): get enc argument to specify
+	  the encoding of the format. On Windows (at least Japanese Windows),
+	  Time#strftime("%Z") includes non ASCII in locale encoding (CP932).
+	  So convert locale to default internal. [ruby-core:39092] [Bug #5226]
+
+	* strftime.c (rb_strftime): ditto.
+
+	* strftime.c (rb_strftime_timespec): ditto.
+
+	* internal.h (rb_strftime_timespec): follow above.
+
+	* time.c (rb_strftime_alloc): ditto.
+
+	* time.c (strftimev): ditto.
+
+	* time.c (time_strftime): ditto.
+
+	* time.c (time_to_s): the resulted string of Time#to_s is always
+	  ascii only, so this should be US-ASCII.
+
+	* time.c (time_asctime): ditto.
+
+Sat Aug 27 11:18:12 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* Revert r33078. It caused a Rails application NoMethodError.
+
+	 /home/nahi/git/emptyApp/ruby/1.9.1/gems/rack-mount-0.6.14/lib/rack/mount/utils.rb:157: warning: toplevel constant ScanError referenced by Regin::Parser::ScanError
+	 /home/nahi/git/emptyApp/ruby/1.9.1/gems/rack-mount-0.6.14/lib/rack/mount/vendor/regin/regin/parser.rb:17:in `parse_regexp': undefined method `scan_str' for #<Regin::Parser:0x00000002344548> (NoMethodError)
+
+Sat Aug 27 08:44:58 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc:  Import RDoc 3.9.4.  Typo and grammar fixes by Luke Gruber.
+	  [Ruby 1.9 - Bug #5203]
+
+Sat Aug 27 07:53:34 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/open-uri.rb:  Fix indentation of OpenURI::OpenRead#open.  Use ++
+	  instead of `' for method arguments in open-uri.rb
+
+Sat Aug 27 07:22:07 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/pathname/lib/pathname.rb:  Fix typos and grammar mistakes.  Patch
+	  by Luke Gruber.  [#5203]
+	* ext/pty/lib/expect.rb:  ditto
+	* lib/mathn.rb:  ditto
+	* lib/net/http.rb:  ditto
+	* lib/open-uri.rb:  ditto
+	* lib/ostruct.rb:  ditto
+	* lib/tempfile.rb:  ditto
+	* lib/thread.rb:  ditto
+	* lib/weakref.rb:  ditto
+	* sample/webrick/httpproxy.rb:  ditto
+
+Sat Aug 27 04:03:18 2011  Koichi Sasada  <ko1@atdot.net>
+
+	* iseq.c (iseq_data_to_ary): fix type of variable
+	  (long -> unsigned long) to suppress a warning.
+
+Sat Aug 27 04:02:11 2011  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h: add a decl. of rb_autoloading_value().
+
+Fri Aug 26 19:12:08 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* variable.c: Make autoload thread-safe. See #921.
+
+	  What's the problem?
+	    autoload is thread unsafe. When we define a constant to be
+	    autoloaded, we expect the constant construction is invariant. But
+	    current autoload implementation allows other threads to access the
+	    constant while the first thread is loading a file.
+
+	  What's happening inside?
+	    The current implementation uses Qundef as a marker of autoload in
+	    Constant table. Once the first thread find Qundef as a value at
+	    constant lookup, it starts loading a defined feature. Generally a
+	    loaded file overrides the Qundef in Constant table by module/class
+	    declaration at very beginning lines of the file, so other threads
+	    can see the new Module/Class object before feature loading is
+	    finished. It breaks invariant construction.
+
+	  How to solve?
+	    To ensure invariant constant construction, we need to override
+	    Qundef with defined Object after the feature loading. For keeping
+	    Qundef in Constant table, I expanded autoload_data struct in
+	    Module to have a slot for keeping the defined object while feature
+	    loading. And changed Module's constant lookup/update logic a
+	    little so that the slot is only visible from the thread which
+	    invokes feature loading. (== the first thread which accessed the
+	    autoload constant)
+
+	  Evaluation?
+	    All test passes (bootstrap test, test-all and RubySpec) and added
+	    8 tests for threading behavior. Extra logics are executed only
+	    when Qundef is found, so no perf drop should happen except
+	    autoloading.
+
+	* variable.c (rb_autoload): Prepare new autoload_data struct.
+
+	* variable.c (rb_autoload_load): Load feature and update Constant
+	  table after feature loading is finished.
+
+	* variable.c (rb_const_get_0): When the fetched constant is under
+	  autoloading, it returns the object only for the thread which starts
+	  autoloading.
+
+	* variable.c (rb_const_defined_0): Ditto.
+
+	* variable.c (rb_const_set): When the specified constant is under
+	  autoloading, it sets the object only for the thread which starts
+	  autoloading. Otherwise, simply overrides Qundef with constant
+	  override warning.
+
+	* vm_insnhelper.c (vm_get_ev_const): Apply same change as
+	  rb_const_get_0 in variable.c.
+
+	* test/ruby/test_autoload.rb: Added tests for threading behavior.
+
+Fri Aug 26 10:10:37 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems 1.8.10.  Fixes security issue in
+	  creating ruby-format gemspecs.  Fixes Gem.dir not being at the front
+	  of Gem.path to fix uninstall and cleanup commands.  Fixes gem
+	  uninstall stopping on the first missing gem.
+
+Fri Aug 26 08:21:10 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* time.c (strftimev): Make Time#to_s default to US-ASCII encoding but
+	  respect Encoding.default_internal. [ruby-core:39092]
+	* test/ruby/test_time.rb (class TestTime): Corresponding test.
+
+Thu Aug 25 09:43:16 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/openssl/lib/openssl/bn.rb:  Hide copyright info from RDoc.
+	* ext/openssl/lib/openssl/digest.rb:  ditto
+	* ext/openssl/lib/openssl/x509.rb:  ditto
+	* ext/openssl/lib/openssl/cipher.rb:  ditto
+
+Thu Aug 25 09:25:48 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/openssl/ossl_digest.c:  Document OpenSSL::Digest::digest and add
+	  an example to OpenSSL::Digest.  Patch by Sylvain Daubert.
+	  [Ruby 1.9 - Bug #5166]
+	* ext/openssl/lib/openssl/digest.rb (module OpenSSL):  ditto
+
+Thu Aug 25 08:19:43 2011  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (vm_make_env_each): work around to solve Bug #2729.
+	  fixes: Bug #2729
+	  a patch from Kazuki Tsujimoto <kazuki@callcc.net>
+	  This problem is caused by changing dfp (dynamic env pointer)
+	  from saved dfp.  Saved dfp is pointed env in VM stack.  However,
+	  the dfp can be moved because VM copies env from VM stack to
+	  the heap.  At this copying, dfp was also changed.  To solve this
+	  problem, I'll try to change throw mechanism (not save target dfp,
+	  but save target cfp).
+
+	* bootstraptest/test_flow.rb: add a test for above.
+
+Thu Aug 25 07:57:33 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* numeric.c (int_round): Fix Integer#round [ruby-core:39096]
+
+Thu Aug 25 07:00:00 2011  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.h, vm_insnhelper.c, vm.c, vm_method.c, insns.def:
+	  Manage a redefinition of special methods for each classes.
+	  A patch from Joel Gouly <joel.gouly@gmail.com>.  Thanks!
+
+Thu Aug 25 06:51:08 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb: Fixing psych version number.
+	* ext/psych/psych.gemspec: updating the gemspec.
+
+Thu Aug 25 06:11:35 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/nodes/node.rb: default `to_yaml` encoding to be
+	  UTF-8.
+	* test/psych/test_encoding.rb: test yaml dump encoding.
+
+Thu Aug 25 01:24:33 2011  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* test/fileutils/test_fileutils.rb (test_chmod_symbol_mode): Solaris
+	  seems to behave the same as FreeBSD.
+
+Thu Aug 25 01:11:36 2011  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* test/ruby/test_rubyoptions.rb (test_script_from_stdin): slave pty
+	  should be manipulated because master pty may not be a tty on some
+	  environment (e.g. Solaris). [Bug:#5222] [ruby-dev:44420]
+
+Wed Aug 24 15:13:56 2011  Koichi Sasada  <ko1@atdot.net>
+
+	* iseq.h, iseq.c, compile.c: Change the line number data structure
+	  to solve an issue reported at [ruby-dev:44413] [Ruby 1.9 - Bug #5217].
+	  Before this fix, each instruction has an information including
+	  line number (iseq::iseq_insn_info_table).  Instead of this data
+	  structure, recording only line number changing places
+	  (iseq::iseq_line_info_table).
+	  The order of entries in iseq_line_info_table is ascending order of
+	  iseq_line_info_table_entry::position.  You can get a line number
+	  by an iseq and a program counter with this data structure.
+	  This fix reduces memory consumption of iseq (bytecode).
+	  On my measurement, a rails application consumes 21.8MB for
+	  iseq with this fix on the 32bit CPU.  Without this fix, it
+	  consumes 24.7MB for iseq [ruby-dev:44415].
+
+	* proc.c: ditto.
+
+	* vm_insnhelper.c: ditto.
+
+	* vm_method.c: ditto.
+
+	* vm.c (rb_vm_get_sourceline): change to use rb_iseq_line_no().
+
+Wed Aug 24 09:49:10 2011  Koichi Sasada  <ko1@atdot.net>
+
+	* insns.def (defined): fix to checking class variable.
+	  A patch by Magnus Holm <judofyr@gmail.com>.  Thanks!
+
+	* test/ruby/test_variable.rb: add a test for above.
+
+Wed Aug 24 08:53:06 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc:  Update to RDoc 3.9.3.  Fixes RDoc with `ruby -Ku`.  Allows
+	  HTTPS image paths to be turned into <img> tags.  Prevents special
+	  markup inside <tt> from being processed.
+
+Wed Aug 24 07:57:43 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems 1.8.9.  Fixes uninstalling multiple
+	  gems and gem cleanup.
+
+Wed Aug 24 06:45:20 2011  Ryan Davis  <ryand-ruby@zenspider.com>
+
+	* lib/minitest/*: Imported minitest 2.5.0 (r6557)
+	* test/minitest/*: ditto
+
+Wed Aug 24 00:38:22 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* thread.c (update_coverage): skip coverage count up if the current
+	  line is out of the way.  rb_sourceline() is unreliable when source
+	  code is big.  [ruby-dev:44413]
+
+	* test/coverage/test_coverage.rb: add a test for above.
+
+Tue Aug 23 15:23:56 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* load.c (rb_f_require):  Improve documentation of Kernel#require.
+	  [Ruby 1.9 - Bug #5210]
+
+Tue Aug 23 11:27:26 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* ext/zlib/zlib.c (gzfile_read_header): Ensure that each section of
+	  gzip header is readable to avoid SEGV.
+
+	* test/zlib/test_zlib.rb (test_corrupted_header): Test it.
+
+Mon Aug 22 23:43:33 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* sprintf.c (rb_str_format): add RB_GC_GUARD to prevent temporary
+	  strings from GC.
+
+Sun Aug 21 17:49:53 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* iseq.c (iseq_s_disasm): remove variable which is no longer used
+	  since r33013.
+
+Sun Aug 21 14:20:58 2011  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* configure.in: use LD_LIBRARY_PATH_64 on 64-bit Solaris.
+
+Sat Aug 20 13:19:52 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* iseq.c (iseq_s_disasm): fix a bug that may cause SEGV.
+
+	* test/ruby/test_method.rb (test_body): add a test for the above change.
+
+Sat Aug 20 10:43:24 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/stringio/stringio.c (strio_read): return new string if nil
+	  is explicitly given as a buffer ([Bug #5207]), otherwise set the
+	  encoding.  also removed dead code.
+
+Fri Aug 19 14:25:51 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (proc_spawn_v, proc_spawn): should not wait the
+	  spawned process.
+
+	* process.c (proc_spawn_v): fix missing argument, and try with
+	  /bin/sh only if failed with ENOEXEC.
+
+Fri Aug 19 14:12:57 2011  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/imap.rb (idle): raises a Net::IMAP::Error when the
+	  connection is closed.  based on the patch by Hugo Barauna.
+	  [Bug #5190] [ruby-core:38930]
+
+Fri Aug 19 13:18:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* configure.in: defines _DARWIN_UNLIMITED_SELECT if the target_os
+	  is darwin.
+
+Fri Aug 19 13:14:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* thread.c: add a description for the behavior of select(2) on
+	  Mac OS X 10.7 (Lion).
+
+Fri Aug 19 11:28:58 2011  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/imap.rb (msg_att): accepts extra space before ')'.
+	  based on the patch by art lussos.  [Bug #5163] [ruby-core:38820]
+
+Wed Aug 17 23:01:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (cannot_be_coerced_into_BigDecimal):
+	  remove duplication.
+
+Wed Aug 17 15:27:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (cannot_be_coerced_into_BigDecimal):
+	  add a new function for raising error when an object cannot coerce
+	  into BigDecimal.  [Bug #5172]
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimalValueWithPrec): use
+	  cannot_be_coerced_into_BigDecimal function.
+
+	* ext/bigdecimal/bigdecimal.c (BigMath_s_exp): ditto.
+
+	* ext/bigdecimal/bigdecimal.c (BigMath_s_log): ditto.
+
+	* test/bigdecimal/test_bigdecimal.rb: test for the above changes.
+
+	* test/bigdecimal/testbase.rb (under_gc_stress): add a new utility
+	  method to run tests under the condition of GC.stress = true.
+
+Wed Aug 17 10:16:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* rational.c (nurat_coerce): Rational#coerce should converts itself
+	  into Complex if the argument is a Complex with non-zero imaginary
+	  part.  [Bug #5020] [ruby-dev:44088]
+
+	* test/ruby/test_rational.rb (test_coerce): test for the above change.
+
+Wed Aug 17 06:33:19 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_x509cert.c: Add class documentation for
+	  OpenSSL::X509::Certificate.
+
+Wed Aug 17 04:54:25 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_pkey.c: corrected docs, OpenSSL::PKey::DH does
+	  *not* support #sign/verify.
+
+Tue Aug 16 18:56:54 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm.c (ruby_threadptr_data_type): rename to hide.
+	  [ruby-core:38972]
+
+Tue Aug 16 18:52:08 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/mkexports.rb (Exports::Mswin#each_export): exclude Init_
+	  and _threadptr_ functions, as well as mingw.
+
+Tue Aug 16 09:31:44 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/dl:  Add documentation.  Patch by Vincent Batts.
+	  [Ruby 1.9 - Bug #5192]
+
+Tue Aug 16 08:48:26 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/.document (fiddle):  Remove duplicate entry
+	* ext/fiddle:  Complete documentation of Fiddle.  Patch by Vincent
+	  Batts.  [#5192]
+
+Tue Aug 16 08:00:15 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/socket:  Make Socket documentation appear.  Add documentation for
+	  Socket, TCPServer, SOCKSSocket.  Patch by Sylvain Daubert.
+	  [Ruby 1.9 - Feature #5182]
+
+Mon Aug 15 09:58:55 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_ssl.c: Support disabling OpenSSL compression.
+
+	* test/openssl/test_ssl.rb: Add a test for it.
+	  Thanks to Eric Wong for the patch.
+	  [Ruby 1.9 - Feature #5183] [ruby-core:38911]
+
+Sun Aug 14 05:57:01 2011  Tanaka Akira  <akr@fsij.org>
+
+	* test/socket/test_socket.rb (test_connect_timeout): added a test
+	  based on a patch by Eric Wong.  [ruby-core:38910]
+
+Sat Aug 13 22:17:27 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/mkconfig.rb: do not make the entries related to sitedir and
+	  verdordir if disabled by --without options.  [ruby-core:38922]
+	  [Bug #5187]
+
+Sat Aug 13 17:03:22 2011  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: [ruby-core:38861]
+
+Sat Aug 13 09:39:07 2011  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* test/date/test_*.rb: added tests.
+
+Sat Aug 13 09:36:19 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* ext/date/date_parse.c (parse_ddd_cb): fix r32896. RB_GC_GUARD
+	  insertion position was mistaken. [ruby-dev:44337] [Bug #5152]
+
+Sat Aug 13 09:26:24 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/core_ext.rb: Make Kernel#y private.
+	  [ruby-core:38913]
+
+	* test/psych/test_yaml.rb: corresponding test.
+
+Sat Aug 13 09:05:16 2011  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c (date_strftime_alloc): followed the change
+	  of r32885.
+
+	* doc/NEWS-1.9.3: followed the above change.
+
+Sat Aug 13 08:55:38 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/scalar_scanner.rb: Only consider strings
+	  with fewer than 2 dots to be numbers. [ruby-core:38915]
+
+Sat Aug 13 08:47:20 2011  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: [ruby-core:38855].
+
+Sat Aug 13 03:41:37 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/uri/common.rb:  Fix documentation of URI::Parser.new.  Patch by
+	  Steve Klabnik.  [Ruby 1.9 - Bug #5177]
+
+Sat Aug 13 02:19:57 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/digest/digest.c:  Add documentation for the Digest module.  Patch
+	  by Sylvain Daubert.  [Ruby 1.9 - Bug #5167]
+
+Sat Aug 13 01:56:11 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rake:  Update to Rake 0.9.2.2.  Prevent pollution of toplevel
+	  namespace by Commands.  Remove unused variable and debugging
+	  statement in tests.
+
+Fri Aug 12 11:39:35 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: Describe "no" configure option for site_ruby
+	  and vendor_ruby. Patch by Vit Ondruch. [Bug #5187][ruby-core:38921]
+
+Fri Aug 12 09:00:24 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Import RubyGems 1.8.8.  Fixes encoding of YAML gemspec
+	  from gems.  Github Issue #149
+
+Fri Aug 12 08:17:46 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/ipsocket.c (init_inetsock_internal): use SOMAXCONN for
+	  listen backlog.
+
+	* ext/socket/unixsocket.c (rsock_init_unixsock): ditto.
+
+	* ext/socket/lib/socket.rb (Addrinfo#listen): ditto.
+	  (Socket.tcp_server_sockets_port0): ditto.
+
+	* ext/socket/mkconstants.rb: define SOMAXCONN as 5 if not available.
+
+	[ruby-core:38493]
+
+Fri Aug 12 03:24:35 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc:  Import RDoc 3.9.2.  Fixes TIDYLINK for HTML output.
+
+Thu Aug 11 15:37:42 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* variable.c (autoload_delete): An autoload entry is still in a
+	  RCLASS_IV_TBL, not in a RCLASS_CONST_TBL, so take back the table
+	  changed in r29600. And an autoload entry keeps not a
+	  rb_const_entry_t but a NODE so remove rb_const_entry_t thing added
+	  in r29602.
+
+Thu Aug 11 15:07:36 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (link_command): use LIBRUBYARG in rbconfig for
+	  unbundled extensions.  [ruby-core:38802] [Bug #5147]
+
+	* lib/mkmf.rb (init_mkmf): revert r32902.  [ruby-core:38903]
+
+Wed Aug 10 23:03:55 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/lib/socket.rb: fix argument check in the previous commit.
+
+Wed Aug 10 22:12:28 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/lib/socket.rb (Socket.tcp): add :connect_timeout option.
+	  (Addrinfo#connect_from): add :timeout option.
+	  (Addrinfo#connect): ditto.
+	  (Addrinfo#connect_to): ditto.
+	  [ruby-core:38538]
+
+Wed Aug 10 21:27:19 2011  Tanaka Akira  <akr@fsij.org>
+
+	* lib/net/pop.rb: fix typo in document.
+
+	* lib/net/http.rb: ditto.
+
+	* lib/net/imap.rb: ditto.
+
+Wed Aug 10 19:30:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* complex.c (nucomp_rationalize): calls rationalize of real part if
+	  imaginary part is exactly zero.  The patch is made by Marc-Andre
+	  Lafortune.  fixes [Bug #5178] [ruby-core:38885]
+
+	* test/ruby/test_complex.rb (test_rationalize): add a test for the
+	  above change.
+
+	* complex.c (nucomp_to_r): fix RDoc comment.  The patch is made by
+	  Marc-Andre Lafortune.
+
+Wed Aug 10 14:11:07 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (init_mkmf): set $LIBRUBYARG regardless of shared
+	  option.  [ruby-core:38802] [Bug #5147]
+
+Wed Aug 10 02:53:27 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http.rb: come back autoload. OpenSSL constant is used
+	  some places, so it leads mistakes like HTTP.start.
+
+Tue Aug  9 22:57:45 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* ext/date/date_parse.c (date_zone_to_diff): add RB_GC_GUARD.
+	  [ruby-dev:44337] [Bug #5152]
+
+	* ext/date/data_parse.c (parse_ddd_cb): ditto.
+
+Tue Aug  9 14:25:47 2011  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* ext/fiddle/conversions.c (generic_to_value): ffi_arg and ffi_sarg
+	  should be used to handle shorter return value. fix [Bug #3861]
+	  [ruby-core:32504]
+
+	* ext/fiddle/closure.c (callback): ditto
+
+	* ext/fiddle/conversions.h (fiddle_generic): ditto
+
+	* ext/fiddle/conversions.c (value_to_generic): char, short and int
+	  are strictly distinguished on big-endian CPU, e.g. sparc64.
+
+Tue Aug  9 11:21:08 2011  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (gc_lazy_sweep): if sweep target slots are not found, we
+	  try heap_increment() because it might be able to expand the
+	  heap. [Bug #5127] [ruby-dev:44285]
+
+	* gc.c (gc_clear_mark_on_sweep_slots): if a sweeping was
+	  interrupted, we expand the heap if at all possible.
+
+Tue Aug  9 12:20:33 2011  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* test/fiddle/helper.rb (libc_so, libm_so): Solaris support added.
+	  [ruby-core:38853] [Bug #5168]
+
+	* test/dl/test_base.rb (libc_so, libm_so): on Solaris, remove libc
+	  and libm version numbers for detecting default libc and libm.
+
+Tue Aug  9 09:18:04 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/zlib/zlib.c (gzfile_wrap):  Document encoding options.
+
+	* ext/zlib/zlib.c (rb_gzwriter_s_open): ditto
+
+	* ext/zlib/zlib.c (rb_gzreader_s_open): ditto
+
+Sun Aug  7 23:31:32 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* time.c (rb_strftime_alloc): raise ERANGE if width is too large.
+	  Patch by Nobuyoshi Nakada. [Bug #4457] [ruby-dev:43285]
+
+	* test/ruby/test_time.rb (class TestTime): add a test for the
+	  above change.
+
+Sun Aug  7 22:51:45 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* ext/openssl/ossl_asn1.c (decode_eoc): remove unused variables.
+	  Patch by Eric Wong. [Feature #5157] [ruby-core:38798]
+
+	* ext/openssl/ossl_asn1.c (ossl_asn1_decode): ditto.
+
+	* ext/openssl/ossl_pkey.c (ossl_pkey_new_from_data): ditto.
+
+Sun Aug  7 22:37:08 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: add -Wunused-variable to default CFLAGS.
+	  Patch by Eric Wong. [Feature #5157] [ruby-core:38798]
+
+Sun Aug  7 15:37:35 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/digest/sha2/sha2ossl.c: use original SHA384_Final on DragonFly.
+
+Sun Aug  7 14:08:16 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* ext/objspace/objspace.c: fix typos in a document.
+
+Sun Aug  7 07:14:57 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* cont.c (HAVE_GETCONTEXT): see getcontext(3) because DragonFly BSD
+	  x64 port doesn't have it.
+
+Sun Aug  7 00:42:55 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/tk/lib/tk/wm.rb (Tk::Wm.command): Add the missing receiver
+	  before calling epath. patched by flori
+	 https://github.com/flori/ruby/commit/aa9474d32e5f2c57f8b0e2e0c528a03f06a4d433
+
+Sat Aug  6 07:06:34 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* marshal.c (w_object):  Fix exception message when _dump_data is not
+	  defined on a T_DATA object.
+
+Fri Aug  5 22:16:20 2011  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* numeric.c (rb_infinity, rb_nan): use WORDS_BIGENDIAN to get endian.
+	  fix [Bug #5160] [ruby-dev:44356]
+
+Fri Aug  5 17:14:11 2011  Akinori MUSHA  <knu@iDaemons.org>
+
+	* test/test_syslog.rb (TestSyslog#test_log): Do not be too
+	  specific about the log line format.  Fixes #5081.
+
+Fri Aug  5 15:57:10 2011  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* complex.c (f_signbit): fix compile error in gcc4 on Solaris with
+	  CFLAGS="-std=gnu99".  [ruby-dev:44355] fix [Bug #5159]
+
+	* math.c: ditto.
+
+Fri Aug  5 15:55:33 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/test_object.rb: tests that respond_to? returns false.
+
+Fri Aug  5 13:32:43 2011  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/xmlrpc/client.rb, lib/xmlrpc/server.rb: should use
+	  String#bytesize instead of String#size.
+
+Fri Aug  5 12:18:20 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (check_funcall): try respond_to? first if redefined.
+	  [Bug #5158]
+
+Fri Aug  5 09:48:22 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Import RubyGems 1.8.7:
+	  Added missing require for `gem uninstall --format-executable`.
+
+	  The correct name of the executable being uninstalled is now displayed
+	  with --format-executable.
+
+	  Fixed `gem unpack uninstalled_gem` default version picker.
+
+	  RubyGems no longer claims a nonexistent gem can be uninstalled.
+
+	  `gem which` no longer claims directories are requirable files.
+
+	  `gem cleanup` continues cleaning up gems if one can't be uninstalled
+	  due to permissions.  Issue #82.
+
+	  Gem repository directories are no longer created world-writable.
+	  Patch by Sakuro OZAWA.  [Ruby 1.9 - Bug #4930]
+
+Fri Aug  5 07:00:31 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/io/console/test_io_console.rb (test_noctty): daemon() on
+	  Fedora Rawhide seems not to detach the controlling terminal,
+	  when the argument noclose is non-zero.  ref: [Bug #5135]
+
+Thu Aug  4 23:48:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* thread_pthread.c (native_cond_signal): retry to call pthread_cond_signal
+	  and pthread_cond_broadcast if they return EAGAIN in
+	  native_cond_signal and native_cond_broadcast, respectively.
+	  It is for the pthread implementation of Mac OS X 10.7 (Lion).
+	  fixes #5155.  [ruby-dev:44342].
+
+	* thread_pthread.c (native_cond_broadcast): ditto.
+
+	* thread_pthread.c (struct cached_thread_entry): stop using
+	  pthread_cond_t and its functions directly.
+
+	* thread_pthread.c (register_cached_thread_and_wait): ditto.
+
+	* thread_pthread.c (use_cached_thread): ditto.
+
+Thu Aug  4 20:29:41 2011  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* configure.in: when Solaris cc, use $(CC) to link shared libs.
+
+Thu Aug  4 20:19:11 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* error.c (report_bug): use a small message buffer instead of BUFSIZ.
+	  It is needed for avoiding nested SIGSEGV on Linux.
+	  Note: BUFSIZ is not proper buffer size. It's unrelated with maximum
+	  filename length. :-/
+	  [Bug #5139] [ruby-dev:44315]
+
+Thu Aug  4 16:08:45 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/rbinstall.rb (gem): install all gemspecs under lib and ext.
+
+	* tool/rbinstall.rb (Gem::Specification): may not be defined when
+	  cross-compiling and BASERUBY is 1.8.
+
+Thu Aug  4 11:30:36 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* include/ruby/missing.h: define __syscall on OpenBSD as r32702.
+
+Thu Aug  4 03:02:54 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* tool/rbinstall.rb: use rubygems to load gemspecs, copy actual
+	  gemspecs on install rather than generate fake ones for all gems.
+
+Thu Aug  4 02:45:10 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* configure.in: set CXX variable to the C++ compiler that matches the
+	  C compiler specified by CC variable (e.g. use g++-4.2 for gcc-4.2).
+
+Thu Aug  4 02:21:10 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (link_command): use static library only for bundled
+	  extensions.  [Bug #5147]
+
+Thu Aug  4 02:02:10 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/psych.gemspec: installing psych as a gem.
+
+Wed Aug  3 16:01:35 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* util.c, include/ruby/util.h (ruby_add_suffix): remove the function.
+	  [Bug #5153] [ruby-core:38736]
+
+	* io.c (argf_next_argv): remove the call of above function.
+
+	* ext/-test-/add_suffix, test/-ext-/test_add_suffix.rb: remove the test
+	  extension module because this is only for testing ruby_add_suffix().
+
+	* LEGAL: remove the mention about a part of util.c, because now we
+	  removed the part.
+
+	* io.c (argf_next_argv): now the new filename is not guaranteed to
+	  use, so should check the return value of rename(2).
+
+	* test/ruby/test_argf.rb (TestArgf#test_inplace_rename_impossible):
+	  now we expect same result with other platforms on no_safe_rename
+	  platforms (=Windows).
+
+Wed Aug  3 09:18:08 2011  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* test/xmlrpc/webrick_testing.rb (WEBrick_Testing#start_server):
+	  Like r32795, bind address should be specified.
+
+Wed Aug  3 07:46:30 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* encoding.c (enc_find): mistakenly remained !.  [Bug #5150]
+
+Wed Aug  3 00:11:08 2011  Tanaka Akira  <akr@fsij.org>
+
+	* lib/prettyprint.rb: update document.  [ruby-core:36776]
+
+Tue Aug  2 22:04:46 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* gc.c (init_heap): allocate sigaltstack after heaps are allocated.
+	  [ruby-dev:44315] [Bug #5139]
+
+	* vm.c (thread_free): use free because objspace is not ready.
+
+	* vm.c (th_init): use malloc because objspace is not ready.
+
+Tue Aug  2 20:10:16 2011  Shota Fukumori  <sorah@tubusu.net>
+
+	* test/testunit/test_parallel.rb: pass "--ruby" option to
+	  test/testunit/tests_for_parallel/runner.rb. [Bug #5132] [ruby-dev:44303]
+
+Tue Aug  2 15:53:37 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* encoding.c (str_to_encoding): rename from to_encoding and
+	  use str_to_encindex.
+
+	* encoding.c (str_to_encindex): split from to_encoding.
+
+	* encoding.c (rb_to_encoding): use str_to_encoding.
+
+	* encoding.c (rb_obj_encoding): don't bypass rb_encoding*.
+	  If it uses rb_encoding*, it bypass encindex. If it uses encindex,
+	  it doesn't bypass.
+
+	* encoding.c (enc_find): add shortcut for encoding object, use
+	  str_to_encindex, and avoid bypass rb_encoding*.
+
+Tue Aug  2 12:03:16 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (recursive_hash): hash value of emptied hash should be
+	  equal to an empty hash.  [ruby-core:38650]
+
+Tue Aug  2 11:42:15 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (rb_enc_symname2_p): :! is valid symbol.  [Bug #5136]
+
+Tue Aug  2 07:33:29 2011  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* test/net/http/test_http.rb (TestNetHTTP_version_1_1_methods#test_timeout_during_HTTP_session):
+	  If you connect to localhost, you should listen localhost.
+
+	* test/net/http/test_https.rb (TestNetHTTPS#test_timeout_during_SSL_handshake):
+	  ditto.
+
+Tue Aug  2 06:18:15 2011  Luis Lavena  <luislavena@gmail.com>
+
+	* lib/rubygems/installer.rb (class Gem): Correct path check on Windows
+	  Possible fix for [Ruby 1.9 - Bug #5111]
+	* test/rubygems/test_gem_installer.rb (load Gem): ditto
+
+Mon Aug  1 20:12:03 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_process.rb (TestProcess#windows?): new method.
+
+	* test/ruby/test_process.rb (TestProcess#*): use above method.
+
+	* test/ruby/test_process.rb (TestProcess#test_execopts_redirect):
+	  windows doesn't support FD_CLOEXEC.
+
+Mon Aug  1 15:45:23 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* test/rake/test_rake_functional.rb:  Don't assume the binary name of
+	  ruby is "ruby".  [Ruby 1.9 - Bug #5114]
+	* test/rake/helper.rb:  ditto
+
+Mon Aug  1 15:31:14 2011  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* test/io/console/test_io_console.rb (TestIO_Console#test_sync):
+	  Skip when PTY allocation failed (that's not our fault).
+
+Mon Aug  1 15:04:12 2011  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* test/xmlrpc/test_webrick_server.rb (Test_Webrick#setup_http_server):
+	  XMLRPC::Client.new3(), when called without host: argument, tries
+	  to  connect to  a host  where "localhost"  resolves to.   On the
+	  other  hand  a  WEBrick::HTTPServer.new(), when  called  without
+	  BindAddress:  argument, tries  to listen  all the  address where
+	  getaddrinfo(AF_UNSPEC) resolves to.   This is a mismatch because
+	  "localhost" might not resolve to one of those listening sockets.
+	  We  would  better explicitly  specify  "localhost"  here and  if
+	  failed, just skip the whole test.
+
+Mon Aug  1 14:24:56 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc.rb:  Import RDoc 3.9.1.  Fixes bugs in the RDoc::Markup
+	  parser.
+
+Mon Aug  1 12:00:35 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* insns.def (concatstrings): don't use initial ASCII-8BIT string.
+	  [ruby-core:38635] [Bug #5126]
+
+Sun Jul 31 22:57:16 2011  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* enc/Makefile.in (ECHO1): Same as the recent fix in common.mk.
+	  ":" in a make variable replacement cause a syntax error with
+	  /usr/ccs/bin/make on Solaris.  Uses $(NULLCMD) instead.
+
+Sun Jul 31 21:16:02 2011  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* complex.c (f_signbit): gcc4 on Solaris DOES have signbit but does
+	  not have it on header.
+
+	* math.c: ditto.
+
+Sun Jul 31 21:09:04 2011  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* common.mk (node_name.inc): Use $(Q) for consistency.
+
+	* Makefile.in (INSNS): ditto.
+
+Sun Jul 31 21:19:51 2011  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* lib/mkmf.rb (configuration:ECHO1): Same as the recent fix in
+	  common.mk.
+	  ":" in a make variable replacement cause a syntax error with
+	  /usr/ccs/bin/make on Solaris.  Uses $(NULLCMD) instead.
+
+Sun Jul 31 20:39:12 2011  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* common.mk (ECHO1): nmake does not allow parenthesis in make variable
+	  replacement.
+
+Sun Jul 31 23:06:57 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm.c (check_env): print debug messages to stderr.
+	[Feature #4871] [ruby-dev:43743]
+
+Sun Jul 31 22:50:23 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm.c (vm_make_env_each): don't save prev env value.
+	It is no longer used. [Feature #4871] [ruby-dev:43743]
+
+	* vm.c (check_env): changed accordingly.
+
+Sun Jul 31 20:21:36 2011  "Yuki Sonoda (Yugui)"  <yugui@yugui.jp>
+
+	* common.mk (ECHO1): ":" in a make variable replacement cause a syntax
+	  error with /usr/ccs/bin/make on Solaris.  Uses $(NULLCMD) instead.
+
+	* configure.in (NULLCMD): new check.
+
+	* Makefile.in (NULLCMD): Reflects checking in configure.
+
+	* win32/Makefile.sub (NULLCMD): new assignment.
+
+Sun Jul 31 18:58:59 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_pipe): pipe on cygwin can succeed half but fail
+	  half.
+
+Sun Jul 31 11:31:07 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm.c: check if cfp is valid. [Bug #5083] [ruby-dev:44208]
+
+Sun Jul 31 09:18:28 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc:  Update to RDoc 3.9.  Fixed `ri []`, stopdoc creating an
+	  object reference, nodoc for class aliases, verbatim === lines.
+
+Sun Jul 31 01:29:08 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* io.c (rb_io_each_byte): remove unused variable e.
+
+Sat Jul 31 01:23:45 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* test/bigdecimal/test_bigdecimal.rb (test_version): removed.
+
+Sat Jul 30 23:19:09 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* defs/default_gems: separate from tool/rbinstall.rb.
+
+Sat Jul 30 23:14:44 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_io_each_byte): rbuf can be refreshed during yield.
+	  [Bug #5119]
+
+Sat Jul 30 22:35:50 2011  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* strftime.c (NEEDS): avoid SEGV due to integer overflow in
+	  sparc-solaris2.10 and i686-linux.  fix [Bug #4456] [ruby-dev:43284]
+
+Sat Jul 30 17:26:26 2011  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* test/win32ole/test_win32ole_variant.rb: use skip method to skip the test.
+
+	* test/win32ole/test_win32ole_variant_outarg.rb: ditto.
+
+Sat Jul 30 14:27:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_version): version 1.1.0.
+
+	* ext/bigdecimal/bigdecimal.gemspec: turn into a default gem.
+
+	* tool/rbinstall.rb: ditto.
+
+Sat Jul 30 11:21:55 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* vm_core.h (ALT_STACK_SIZE): use MINSIGSTKSZ*2 instead of SIGSTKSZ*2.
+	  [ruby-core:38607]
+
+Sat Jul 30 10:39:14 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* vm.c (th_init): preallocate alternative stack.
+	  NoMemoryError is better than rb_bug, of course.
+	  Patch by Eric Wong. [ruby-core:38572][ruby-core:38594].
+
+	* signal.c (rb_register_sigaltstack): ditto.
+
+	* vm_core.h: moved ALT_STACK_SIZE definition from signal.c.
+	* vm.c (thread_free): use xfree() instead of free().
+
+Sat Jul 30 07:20:49 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/lib/socket.rb (udp_server_sockets): unused variable
+	  removed.
+	  patch by Jeremy Evans.  [ruby-core:38600]
+
+Fri Jul 29 23:56:32 2011  Tanaka Akira  <akr@fsij.org>
+
+	* lib/securerandom.rb: call OpenSSL::Random.seed at the
+	  SecureRandom.random_bytes call.
+	  based on the patch by Masahiro Tomita.  [ruby-dev:44270]
+
+Fri Jul 29 23:53:48 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_set_len): new function to set array length.
+
+	* vm_eval.c (method_missing): set the length of argv array, to mark
+	  arguments.
+
+	* vm_eval.c (rb_apply): get rid of too large alloca.
+
+Fri Jul 29 20:48:39 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/mkconstants.rb: fix typos.
+
+Fri Jul 29 20:28:56 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/mkconstants.rb: use whitespaces as a separator.
+
+Fri Jul 29 18:59:07 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/mkconstants.rb: add documents for constants.
+	  patch by Eric Hodel.  [ruby-core:37853] [Bug #4989]
+
+Fri Jul 29 16:00:43 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in (enable_pthread): use -pthread on OpenBSD without
+	  explicit option. patched by Jeremy Evans. [ruby-core:38572]
+
+Thu Jul 28 23:36:28 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* ext/fiddle/closure.c (callback): use rb_ary_tmp_new() instead of
+	  xmalloc() to allocate an array for arguments of callback procedure,
+	  to prevent arguments from being swept by GC. [ruby-core:38546]
+	  [Bug #4929]
+
+Thu Jul 28 22:36:06 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* ext/openssl/ossl_cipher.c (ossl_cipher_initialize): Avoid possible
+	  SEGV from AES encryption/decryption. Processing data by
+	  Cipher#update without initializing key (meaningless usage of Cipher
+	  object since we don't offer a way to export a key) could cause SEGV.
+
+	  In OpenSSL, the EVP which has EVP_CIPH_RAND_KEY flag (such as DES3)
+	  allows uninitialized key, but other EVPs (such as AES) does not
+	  allow it. Calling EVP_CipherUpdate() without initializing key causes
+	  SEGV so we set the data filled with "\0" as the key by default. See
+	  #2768.
+
+	* test/openssl/test_cipher.rb: test it.
+
+Thu Jul 28 14:25:08 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/rubygems/user_interaction.rb (Gem::StreamUI#tty?): typo.
+
+Thu Jul 28 12:32:53 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/dl/callback/mkcallback.rb (gencallback): use PTR2NUM.
+
+	* ext/dl/cptr.c (rb_dlptr_aref, rb_dlptr_aset): check NULL pointer
+	  dereference.
+
+	* ext/dl/cptr.c (rb_dlptr_s_to_ptr): use rb_check_funcall.
+
+	* ext/dl/cptr.c (rb_dlptr_s_to_ptr): fix wrapping condition.
+
+Thu Jul 28 04:53:31 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/delegate.rb:  Move file-level documentation to the appropriate
+	  classes.
+
+Thu Jul 28 02:15:04 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/dl/cfunc.c (dlcfunc_mark), ext/dl/cptr.c (dlptr_mark):
+	  workaround to mark wrapped object.  this is not a true fix,
+	  because [Bug #4929] is caused by the interface design of DL.
+
+Thu Jul 28 00:28:15 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* test/fileutils/test_fileutils.rb: add OpenBSD case.
+	  patched by Jeremy Evans [ruby-core:38530] see #5097
+
+	* test/ruby/test_process.rb: ditto.
+
+Wed Jul 27 22:46:59 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
+
+	* test/rinda/test_rinda.rb (test_remote_array_and_hash):
+	  add local variables to protect objects from GC. [ruby-dev:44253]
+	  [Bug #5104]
+
+Wed Jul 27 17:55:54 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* include/ruby/missing.h: define __syscall if the platform has
+	  __syscall in the library but doesn't define it in headers
+	  for example Mac OS X.
+
+Wed Jul 27 15:39:14 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* object.c:  Add usage documentation for BasicObject.  Based on patch
+	  by Thomas Sawyer.  [Ruby 1.9 - Bug #5067]
+
+Wed Jul 27 12:24:17 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/uninstaller.rb:  Add missing require and update
+	  messaging to avoid confusion with uninstall --format-executable.
+	  [Ruby 1.9 - Bug #4062]
+
+Wed Jul 27 09:34:24 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems 1.8.6.1.
+
+Wed Jul 27 09:27:59 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* test/openssl/test_pkcs12.rb: Add test and intermediate certificates.
+	  [ Ruby 1.9 - Feature #3793 ] [ruby-core:32088]
+
+Wed Jul 27 01:05:32 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval_error.c (rb_print_undef_str): new function to raise
+	  NameError for undefined method.
+
+	* load.c (rb_mod_autoload_p), object.c (rb_mod_const_get),
+	  variable.c (rb_f_untrace_var, set_const_visibility), vm_method.c
+	  (rb_mod_{remove,undef,alias}_method, set_method_visibility):
+	  remove inadvertent symbol creation.  based on the first patch by
+	  Jeremy Evans at [ruby-core:38447].  [Feature #5089]
+
+	* vm_method.c (obj_respond_to): fix the respond_to_missing? override
+	  case.  based on the patch by Jeremy Evans at [ruby-core:38417].
+	  [Feature #5072]
+
+	* parse.y (rb_check_id): make the given name a symbol or a string.
+	  based on the second patch by Jeremy Evans at [ruby-core:38447]
+
+Wed Jul 27 00:50:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/lib/bigdecimal/util.rb (Rational#to_d):
+	  zero or negative precision is error.  fixes #5098.
+	  [ruby-dev:44210]
+
+	* test/bigdecimal/test_bigdecimal_util.rb: add test for the above
+	  change.
+
+Wed Jul 27 00:48:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/lib/bigdecimal/util.rb (Float#to_d): modified for
+	  specifying precision.  fixes #5098.  [ruby-dev:44210]
+
+	* test/bigdecimal/test_bigdecimal_util.rb: add test for the above
+	  change.
+
+Wed Jul 27 00:45:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/lib/bigdecimal/util.rb (Integer#to_d): added
+	  for symmetry to BigDecimal() function with an Integer.
+	  fixes #5098.  [ruby-dev:44210]
+
+	* test/bigdecimal/test_bigdecimal_util.rb: add test for the above
+	  change.
+
+Wed Jul 27 00:30:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/lib/bigdecimal/util.rb (BigDecimal#to_d): added
+	  for adapting other Numeric subclasses.  [ruby-dev:44245]
+
+	* test/bigdecimal/test_bigdecimal_util.rb: test for the above change.
+
+Wed Jul 27 00:27:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* bigdecimal/bigdecimal.c (VpDup) a new function for duplicating
+	  a BigDecimal.
+
+	* bigdecimal/bigdecimal.c (BigDecimal_new): support generating a new
+	  BigDecimal from another BigDecimal using BigDecimal global function
+	  or constructor.  [ruby-dev:44245]
+
+Tue Jul 26 23:33:24 2011  Igor Zubkov  <igor.zubkov@gmail.com>
+
+	* array.c: Fix typo. https://github.com/ruby/ruby/pull/36
+
+Mon Jul 25 23:51:01 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* proc.c: pre-allocate the unlinked_method_entry_list_entry struct to
+	  avoid memory allocation during GC.  based on a patch from Eric Wong.
+	  [ruby-core:38498]
+
+Mon Jul 25 23:39:33 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/rake/test_rake_directory_task.rb (TestRakeDirectoryTask#
+	  test_directory_win32): fixed wrong test.
+
+Mon Jul 25 22:36:11 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* proc.c (struct METHOD), gc.c (gc_marks), vm_method.c
+	  (rb_gc_mark_unlinked_live_method_entries): fix SEGV bug.
+	  rb_method_entry_t was free'd even when the method is still on the
+	  stack if it is BMETHOD (i.e., Method#call).  This is because
+	  rb_method_entry_t is embedded in struct METHOD.  This commit
+	  separates them and marks the live method entries.
+	  See [ruby-core:38449] in detail.  fix [Bug #5047] [ruby-core:38171]
+
+Mon Jul 25 22:14:37 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* lib/xmlrpc/client.rb: Fix possible HTTP header formatting failure by
+	  'Basic' header. Long username caused the base64 String truncation in
+	  HTTP header which is not allowed. See #5046.
+
+	* test/xmlrpc/test_webrick_server.rb: test it.
+
+Mon Jul 25 15:04:33 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* ext/openssl/lib/openssl.rb: End of transition period introduced by
+	  [ruby-dev:38018]. From the next version of 1.9.3, you should use
+	    require "openssl"
+	  instead of
+	    require "openssl/ssl"
+	  and
+	    require "openssl/x509"
+
+Mon Jul 25 13:46:38 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* ext/openssl/lib/openssl/x509.rb: Cosmetic change: move definition
+	  introduced in r30152 to x509-internal.rb.
+
+Mon Jul 25 13:09:42 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* ext/openssl/ossl_ssl.c (ossl_ssl_shutdown): Avoid randomly generated
+	  SSLError from SSLSocket just after invoking SSLSocket#close.
+	  OpenSSL's SSL_shutdown could try to send alert packet and it might
+	  set SSLerr(global error stack) as the result. It causes the next
+	  SSL read/write operation to fail by unrelated reason.
+
+	  By design, we're ignoring any error at SSL_shutdown() so we clear
+	  global error stack after SSL_shutdown is called. See #5039.
+
+Sun Jul 24 20:29:53 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: refine the recvmsg test.
+
+Sun Jul 24 20:02:31 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: fix the recvmsg test.
+
+Sun Jul 24 08:42:51 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: test recvmsg allocates file descriptors for
+	  fd passing even with MSG_PEEK.
+
+	* ext/socket/ancdata.c: use the above test result.
+
+Sun Jul 24 01:04:50 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/specification.rb:  Restore behavior of
+	  Gem::Specification#loaded.  [Ruby 1.9 - Bug #5032]
+
+Sun Jul 24 00:05:00 2011  Jeremy Evans  <merch-redmine@jeremyevans.net>
+
+	* error.c (rb_name_error_str): new function to raise NameError
+	  with the name string but not ID.
+
+	* object.c, proc.c, variable.c: more removal of inadvertent symbol
+	  creation.  [Feature #5079]
+
+Sat Jul 23 21:14:00 2011  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* lib/cmath.rb (cbrt): should return a real number if possible.
+
+Sat Jul 23 20:12:52 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* test/rake/test_rake_functional.rb (setup): Use __FILE__ for the base
+	  directory. Current directory is not the top source directory when
+	  the building process runs on other than there.
+
+	* test/rake/test_rake_rake_test_loader.rb: ditto.
+
+	* test/rake/test_rake_task_argument_parsing.rb
+	  (test_terminal_width_using_hardcoded_80): hardcoded 80 is used
+	  when app.unix? is false.
+
+Sat Jul 23 20:11:50 2011  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: an issue that is same as  [ruby-dev:44071].
+	* ext/date/date_strftime.c: identical to [ruby-dev:44112].
+
+Sat Jul 23 19:12:53 2011  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* test/win32ole/test_err_in_callback.rb (test_err_in_callback):
+	  skip test if ADODB.connection is not available.
+
+Sat Jul 23 15:37:04 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* parse.y (rb_enc_symname_type): :$a!, @a! and so on are not
+	  valid symbols, so they should be inspected with quotes.
+
+Sat Jul 23 17:06:25 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_update_max_fd): validate fd.
+
+	* ext/socket/rubysocket.h (rsock_discard_cmsg_resource): add
+	  msg_peek_p argument for the declaration.
+
+	* ext/socket/ancdata.c (discard_cmsg): add msg_peek_p argument.
+	  assume FreeBSD, NetBSD and MacOS X doesn't generate passed fd
+	  when MSG_PEEK.
+	  (rsock_discard_cmsg_resource): add msg_peek_p argument.
+	  (bsock_recvmsg_internal): call rsock_discard_cmsg_resource with
+	  msg_peek_p argument.
+
+	* ext/socket/unixsocket.c (unix_recv_io): call
+	  rsock_discard_cmsg_resource with msg_peek_p argument.
+
+Sat Jul 23 14:38:28 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* test/rake*: Remove dependencies on flexmock and session gems.
+	  [Ruby 1.9 - Bug #4987]
+
+Sat Jul 23 12:19:04 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (rb_check_id): take care of attrset ID created
+	  implicitly by local ID.  [Bug #5084]
+
+	* parse.y (rb_check_id): conversion condition was inverse.
+	  [Bug #5084]
+
+Fri Jul 22 21:46:54 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* vm_insnhelper.c (vm_call_cfunc): added volatile for a workaround
+	  of cfp consistency error problem on OS X 10.7 (Lion). It's
+	  suspected llvm optimization bug.
+	  [Bug #5074] [ruby-dev:44185]
+
+Fri Jul 22 21:18:20 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/generic.rb (WFKV_): unroll the loop of regexp.
+
+	* lib/uri/generic.rb (URI.decode_www_form_component): ditto.
+
+Fri Jul 22 21:06:39 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_mod_{const,cvar}_defined, rb_obj_ivar_defined):
+	  avoid inadvertent symbol creation in reflection methods.  based
+	  on a patch by Jeremy Evans at [ruby-core:38367].  [Feature #5072]
+
+	* vm_method.c (rb_mod_method_defined)
+	  (rb_mod_{public,private,protected}_method_defined)
+	  (obj_respond_to): ditto.
+
+	* parse.y (rb_check_id): new function returns already interned ID
+	  or 0.
+
+Fri Jul 22 20:44:49 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (rb_is_global_id, rb_is_attrset_id): add missing
+	  predicates.
+
+Fri Jul 22 20:24:38 2011  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* test/ruby/test_object.rb (TestObject#test_respond_to_missing):
+	  2nd argument of respond_to_missing? is not optional.
+
+Fri Jul 22 19:05:47 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (rb_enc_symname2_p): get rid of potential out-of-bound
+	  access.
+
+Fri Jul 22 13:55:59 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/http.rb:  Net::HTTP#finish is used to manually close
+	  connections.  [Ruby 1.9 - Bug #5045]
+
+Fri Jul 22 13:51:29 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/readline/readline.c:  Add examples for Readline.completion_proc=.
+	  [Ruby 1.9 - Bug #5057]
+
+Fri Jul 22 13:03:12 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_hmac.c: Revert checking return type of
+	  HMAC_Init_ex as it is not compatible with OpenSSL < 1.0.0.
+
+Fri Jul 22 12:10:21 2011  Eric Hodel  <drbrain@segment7.net>
+
+	* tool/rbinstall.rb (default gems):  Install executables into the fake
+	  gem dir for Gem.bin_path.  [#4485]
+
+Fri Jul 22 11:20:20 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_digest.c: Check return value of EVP_DigestInit_ex.
+	* ext/openssl/ossl_hmac.c: Check return value of HMAC_Init_ex.
+	  Thanks, Jared Jennings, for the patch.
+	  [ Ruby 1.9 - Bug #4944 ] [ruby-core:37670]
+
+Fri Jul 22 09:09:43 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* ext/openssl/ossl_engine.c: Avoid double free of ENGINE reference.
+	* test/openssl/test_engine.rb: Add a test for it.
+	  Thanks to Ippei Obayashi for providing the patch.
+	  [ Ruby 1.9 - Bug #5062 ] [ruby-dev:44173]
+
+Fri Jul 22 06:37:13 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/csv.rb: Do not modify CSV.generate's argument [ruby-core:38356]
+
+Thu Jul 21 20:59:59 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/ancdata.c (discard_cmsg): workaround for MacOS X Lion.
+
+Thu Jul 21 20:02:11 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* thread.c (set_trace_func, thread_set_trace_func_m): reset tracing
+	  state when set_trace_func hook is removed.  This is workaround patch
+	  to force to reset tracing state that is broken by continuation call.
+	  a patch from James M. Lawrence.  [Feature #4347] [ruby-core:34998]
+
+	* test/ruby/test_continuation.rb (class TestContinuation): add a test
+	  for above.  a patch from James M. Lawrence.
+
+Thu Jul 21 19:27:19 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* node.c (dump_node): add today's knowledge.  "init arguments (m)" and
+	  "init arguments (p)" of compile.c indicates a Ruby code that
+	  evaluates multiple assignments that is in method or block
+	  parameters:  def foo((m1,m2), (m3,m4), *r, (p1,p2), (p3,p4)); end
+	  The former (init arguments (m)) evaluates the multiple assignments
+	  before rest argument, that are (m1,m2) and (m3,m4).  The letter
+	  (init arguments (p)) does ones after rest argument, that are
+	  (p1,p2) and (p3, p4).
+
+Thu Jul 21 18:11:07 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* enum.c (enum_inject): remove empty line to notify rdoc
+	  Enumerable#reduce is alias. patched by milki@github.
+	  https://github.com/ruby/ruby/pull/26
+
+Thu Jul 21 17:30:21 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* array.c (rb_ary_delete_at_m): use simple array literal in rdoc.
+	  patched by samuel tonini. [ruby-core:38310] [Bug #5066]
+
+Thu Jul 21 17:14:21 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/webrick/httprequest.rb (WEBrick::HTTPRequest#each):
+	  Allow HTTP/0.9 request which doesn't has any header or body.
+	  patched by Felix Jodoin. [ruby-core:38040] [Bug #5022]
+
+Wed Jul 20 23:02:18 2011  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* io.c (rb_update_max_fd): remove parentheses. they are not in
+	  macro.
+
+Wed Jul 20 22:22:23 2011  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/intern.h (rb_update_max_fd): declaration moved from
+	  internal.h.
+
+	* file.c: ditto.
+
+	* io.c: call rb_update_max_fd for each new fds.
+
+	* process.c: ditto.
+
+	* random.c: ditto.
+
+	* ruby.c: ditto.
+
+	* ext/io/console/console.c: ditto.
+
+	* ext/openssl/ossl_bio.c: ditto.
+
+	* ext/pty/pty.c: ditto.
+
+	* ext/socket/init.c: ditto.
+
+	* ext/socket/socket.c: ditto.
+
+	* ext/socket/ancdata.c: ditto.
+
+	* ext/socket/unixsocket.c: ditto.
+
+Wed Jul 20 15:16:22 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/dl/handle.c (dlhandle_sym): clear previous error with dlerror()
+	  before calling dlsym(). [ruby-dev:44091] [Bug #5021]
+
+Wed Jul 20 07:16:26 2011  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* NEWS: mention Kernel#warn.  [ruby-core:38119] [Feature #5029]
+
+Tue Jul 19 16:40:45 2011  TAKANO Mitsuhiro (takano32)  <tak@no32.tk>
+
+	* cont.c (cont_save_thread): fix missing semicolon.
+
+Tue Jul 19 16:25:15 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (UPDATE_MAXFD): removed.
+
+Tue Jul 19 16:07:45 2011  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_update_max_fd): new function.
+
+	* internal.h (rb_update_max_fd): declare rb_update_max_fd.
+
+	* thread_pthread.c (rb_thread_create_timer_thread): update max fd when
+	  timer thread pipe is created.
+
+Mon Jul 18 13:36:47 2011  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb: define a new BadAlias error class.
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: raise an exception when
+	  deserializing an alias that does not exist.
+
+	* test/psych/test_merge_keys.rb: corresponding test.
+
+Mon Jul 18 00:00:46 2011  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* ext/curses/curses.c: added the new class Curses::Pad, which
+	  supports scrolling.  patch by Eric Hodel.  [Feature #4896]
+	  [ruby-core:37206]
+
+Sun Jul 17 16:26:40 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (rb_check_trusted): new function to check an object is
+	  trusted.
+
+	* struct.c (rb_struct_modify), time.c (time_modify): check by the
+	  above function to show proper class names.  [Bug #5036]
+
+Sun Jul 17 15:30:04 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (rb_warn_m): accept multiple args in like puts.  rdoc
+	  patch by Erik Price at [ruby-core:38119].  [Feature #5029]
+
+Sun Jul 17 07:56:31 2011  Martin Bosslet  <Martin.Bosslet@googlemail.com>
+
+	* test/openssl/test_ssl_session.rb: add PEM SSL session without TLS
+	  extensions. Use this as the default for the tests to ensure
+	  compatibility with OpenSSL 0.9.7.
+	  [ Ruby 1.9 - Bug #4961 ] [ruby-core:37726]
+
+Sat Jul 16 17:29:20 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (RUBY_UNIVERSAL_ARCH): restore arch flag.
+	  Bug #4977
+
+Sat Jul 16 06:27:51 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/uri/common.rb (module): Remove optional parser argument to
+	  Kernel#URI
+	  [ruby-core:38061]
+
+	* lib/uri/generic.rb (module): ditto
+
+Sat Jul 16 03:19:45 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (is_socket, is_console): add prototypes to fix compile
+	  problem with gcc introduced at r32549.
+	  reported by Jon Forums. [Bug #5030] [ruby-core:38079]
+
+Sat Jul 16 00:55:38 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* time.c (time_dup): used rb_obj_class() instead of CLASS_OF().
+	  The patch is made by Kazuki Tsujimoto. [Bug #5012] [ruby-dev:44071]
+
+	* test/ruby/test_time.rb (TestTime#test_getlocal_dont_share_eigenclass):
+	  added a new test for eigenclass of time object.
+
+Fri Jul 15 19:11:00 2011  Kenta Murata  <mrkn@mrkn.jp>
+
+	* bignum.c (bigsub_int): add RB_GC_GUARD.  This patch is made by
+	  Makoto Kishimoto.  fixes #4223 [ruby-dev:42907]
+
+	* bignum.c (bigadd_int): ditto.
+
+Fri Jul 15 14:27:53 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c, include/ruby/win32.h (rb_w32_io_cancelable_p): renamed
+	  from rb_w32_has_cancel_io().  now it takes a parameter as fd to check
+	  the fd is console or not, because we cannot cancel console input even
+	  if we have cancel_io function.
+
+	* io.c (WAIT_FD_IN_WIN32): call above function instead of the old one,
+	  so now we can kill the thread which calls STDIN.gets.
+	  the problem was reported by ko1 via IRC.
+
+Fri Jul 15 09:10:41 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* ext/digest/sha2/sha2.c (SHA256_Update, SHA512_Update): avoid Bus
+	  Error caused by unalignment access on Sparc-Solaris (and possibly on
+	  other similar environment.) This patch just do memcpy always instead
+	  of checking architecture. I see no perf drop on my 64bit env. For
+	  more details, see #4320.
+
+	* test/digest/test_digest.rb: add test for unalignment access.
+
+Fri Jul 15 01:51:25 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* regint.h (PLATFORM_UNALIGNED_WORD_ACCESS): Power PC does not
+	  allow unaligned word access.
+
+	* st.c (UNALIGNED_WORD_ACCESS): x86_64 allows unaligned word
+	  access as well as i386.
+
+Thu Jul 14 12:19:34 2011  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* ext/openssl/ossl.c (ossl_verify_cb): trap the exception from
+	  verify callback of SSLContext and X509Store and make the
+	  verification fail normally. Raising exception directly from callback
+	  causes orphan resources in OpenSSL stack. Patched by Ippei Obayashi.
+	  See #4445.
+
+	* test/openssl/test_ssl.rb
+	  (test_exception_in_verify_callback_is_ignored): test it.
+
+Tue Jul 12 23:41:49 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* NEWS: add a description of Signal.trap change.
+
+Tue Jul 12 20:02:35 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* signal.c (reserved_signal_p): reverted a part of r32523.
+	  chikanaga noticed trap(:CHLD) has some realworld usecase.
+	* test/ruby/test_signal.rb (TestSignal#test_reserved_signal):
+	  ditto.
+
+Tue Jul 12 17:12:45 2011  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* vm_method.c (rb_add_method): should not call method_added hook
+	  for undef operation. [Bug #5015]
+
+Tue Jul 12 16:58:44 2011  Shota Fukumori  <sorah@tubusu.net>
+
+	* lib/test/unit.rb(Test::Unit::Options#process_args): Fix bug.
+	  Fix process_args didn't return `@option` after r30939.
+
+Tue Jul 12 14:07:46 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* signal.c (install_sighandler): fixed a race.
+
+Tue Jul 12 13:49:32 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* signal.c (sig_trap): don't permit to change a signal handler which
+	  the interpreter reserved.
+	* signal.c (reserved_signal_p): ditto.
+	  [Bug #2616] [ruby-core:27625]
+
+	* test/ruby/test_signal.rb (TestSignal#test_reserved_signal):
+	  added a test for reserved signal.
+
+Tue Jul 12 11:58:28 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/setup.mak: support x86-amd64 cross compile environment.
+
+Mon Jul 11 23:22:28 2011  Yutaka Kanemoto  <kanemoto@ruby-lang.org>
+
+	* time.c: can't compile time.c on AIX due to missing declaration for
+	  ffs(). It is declared in strings.h on AIX.
+
+Mon Jul 11 15:54:24 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* process.c: removed signal() macro. It's no longer used.
+
+Mon Jul 11 15:02:24 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* numeric.c (rb_num2ull): use FIX2LONG instead of FIX2ULONG. see
+	  rb_num2ulong(). fixed the problem of ObjectSpace._id2ref of IL32LLP64
+	  platforms, introduced at r32433.
+
+Mon Jul 11 05:38:05 2011  Yutaka Kanemoto  <kanemoto@ruby-lang.org>
+
+	* thread_pthread.c (get_stack): need to adjust stack addr for
+	  [Bug #1813] on AIX.
+
+Mon Jul 11 01:16:27 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread_pthread.c (rb_thread_create_timer_thread): removed
+	  rb_disable_interrupt()/rb_enable_interrupt().
+	* vm_core.h: ditto.
+	* process.c (static void before_exec): ditto.
+	* process.c (static void after_exec): ditto.
+	  [Bug #4765] [ruby-dev:43571]
+
+	* eval_intern.h: removed rb_trap_restore_mask().
+	* vm_eval.c (rb_throw_obj): ditto.
+	* eval.c (setup_exception): ditto.
+
+	* signal.c: removed trap_last_mask.
+	* signal.c (trap_restore_mask): removed.
+	* signal.c (init_sigchld): comment clarification why signal block
+	  is needed. and removed trap_last_mask operation.
+	* signal.c (trap_ensure): removed trap_last_mask operation.
+
+	* signal.c (rb_disable_interrupt, rb_enable_interrupt): made
+	  static and removed sigdelset(SIGVTALRM) and sigdelset(SIGSEGV).
+
+	* process.c (rb_syswait): removed implicit signal handler change.
+
+Sun Jul 10 23:49:12 2011  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* docs/NEWS-1.9.3: moved from NEWS.
+
+	* docs/ChangeLog-1.9.3: merged ChangeLog for 1.9.3.
+
+	* NEWS: NEWS for 1.9.4 that describes changes since 1.9.3
+
+	* ChangeLog: new ChangeLog for 1.9.4.
+
+Sun Jul 10 23:30:52 2011  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* version.h (RUBY_VERSION): ruby_1_9_3 branch was forked.
+
+For the changes before 1.9.3, see doc/ChangeLog-1.9.3
+For the changes before 1.8.0, see doc/ChangeLog-1.8.0
+
+Local variables:
+coding: us-ascii
+add-log-time-format: (lambda ()
+  (let* ((time (current-time))
+	 (system-time-locale "C")
+	 (diff (+ (cadr time) 32400))
+	 (lo (% diff 65536))
+	 (hi (+ (car time) (/ diff 65536))))
+  (format-time-string "%a %b %e %H:%M:%S %Y" (list hi lo) t)))
+indent-tabs-mode: t
+tab-width: 8
+change-log-indent-text: 2
+end:
+vim: tabstop=8 shiftwidth=2
diff --git a/doc/ChangeLog-2.1.0 b/doc/ChangeLog-2.1.0
new file mode 100644
index 0000000000..f80b2d6bd1
--- /dev/null
+++ b/doc/ChangeLog-2.1.0
@@ -0,0 +1,18060 @@
+Fri Dec 20 17:52:50 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_method.c: check definition of
+	  GLOBAL_METHOD_CACHE_SIZE and GLOBAL_METHOD_CACHE_MASK.
+
+Fri Dec 20 17:03:10 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: rename OBJ_WRITE and OBJ_WRITTEN into
+	  RB_OBJ_WRITE and RB_OBJ_WRITTEN.
+
+	* array.c, class.c, compile.c, hash.c, internal.h, iseq.c,
+	  proc.c, process.c, re.c, string.c, variable.c, vm.c,
+	  vm_eval.c, vm_insnhelper.c, vm_insnhelper.h,
+	  vm_method.c: catch up this change.
+
+Fri Dec 20 16:01:35 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: add a comment for WB interfaces.
+
+Fri Dec 20 16:00:52 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: DLDFLAGS is defined in --with-opt-dir handler, so
+	  ${DLDFLAGS=} does not work now.  use RUBY_APPEND_OPTIONS instead.
+	  [ruby-dev:47855] [Bug #9256]
+
+Fri Dec 20 14:19:12 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in (AC_ARG_WITH): use withval directly.
+	  fix failure on FreeBSD.
+	  http://fb32.rubyci.org/~chkbuild/ruby-trunk/log/20131217T070301Z.diff.html.gz
+
+Fri Dec 20 14:00:01 2013  Aman Gupta <ruby@tmm1.net>
+
+	* include/ruby/ruby.h (struct RClass): add super, remove iv_index_tbl.
+	  since RCLASS_SUPER() is commonly used inside while loops, we move it
+	  back inside struct RClass to improve cache hits. this provides a
+	  small improvement (1%) in hotspots like rb_obj_is_kind_of()
+	* internal.h (struct rb_classext_struct): remove super, add
+	  iv_index_table
+	* internal.h (RCLASS_SUPER): update for new location
+	* internal.h (RCLASS_SET_SUPER): ditto
+	* internal.h (RCLASS_IV_INDEX_TBL): ditto
+	* object.c (rb_class_get_superclass): ditto
+	* include/ruby/backward/classext.h (RCLASS_SUPER): ditto
+
+Fri Dec 20 07:07:35 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master 03d6ae7.  Changes include:
+
+	  * Fixed typos.
+
+	  * Relaxed Gem.ruby test for ruby packagers that do not use `ruby`.
+
+	* test/rubygems:  ditto.
+
+Thu Dec 19 14:03:04 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (heap_get_freeobj): improve hot path performance.
+
+	* gc.c (heap_get_freeobj_from_next_freepage): replace with
+	  heap_get_freepage(). It returns freeobj instead of freepage.
+	  This is not on hot path.
+
+Thu Dec 19 12:05:17 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master af60443.  Changes include:
+
+	  * Improved speed of `gem install --ignore-dependencies`.
+
+	  * Open read-write for exclusive flock.  [ruby-trunk - Bug #9257]
+
+	  * Remove specification before install to prevent infinite loop.
+
+Thu Dec 19 11:23:49 2013  Aman Gupta <ruby@tmm1.net>
+
+	* vm_insnhelper.c (vm_call_iseq_setup_normal): simple for loop
+	  condition optimization. this area shows up as a hotspot in VM
+	  profiles.
+
+Thu Dec 19 10:50:13 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (newobj_of): don't need to RBASIC_SET_CLASS() which includes WB
+	  here because created obj is always YOUNG/INFANT.
+
+Thu Dec 19 10:48:37 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/gc/gcbench.rb: check GC::OPTS availability
+	  for not MRI 2.1.0.
+
+Thu Dec 19 03:10:30 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c (heap_get_freeobj): remove redundant assignment. heap->freelist
+	  is set after the while() loop already.
+
+Thu Dec 19 01:54:30 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* test/runner.rb: fix commit miss on r44278.
+
+Thu Dec 19 00:26:11 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (garbage_collect_body): lazy_sweep setting should work
+	  without USE_RGENGC.
+
+Wed Dec 18 23:31:04 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_profile_dump_major_reason): fix this function because major_reason
+	  can be OR of multiple reasons.
+
+	* gc.c (gc_profile_dump_on): ditto.
+
+Wed Dec 18 17:03:00 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_profile_record_get): should return an empty array
+	  when profiling is active.
+
+Wed Dec 18 16:49:40 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_profile_clear, gc_profile_enable): remove rest_sweep().
+
+	* gc.c: check objspace->profile.current_record before inserting
+	  profiling record by new macro gc_prof_enabled().
+
+Wed Dec 18 14:32:06 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_exec.h (VM_DEBUG_STACKOVERFLOW): added.
+	  disable stack overflow check for every stack pushing as default.
+
+	* vm_exec.c (vm_stack_overflow_for_insn): ditto.
+
+Wed Dec 18 10:00:22 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master d8f12e2.  This increases the
+	  speed of `gem install --ignore-dependencies` which helps bundler
+	  tests.
+	* test/rubygems:  ditto.
+
+Wed Dec 18 09:00:17 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_gc.rb (test_expand_heap): allow +/-1 diff.
+
+Tue Dec 17 23:44:15 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* test/ruby/test_io.rb: fix duplicated test name.
+
+Tue Dec 17 20:15:00 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (rb_hash_reject): revert to deprecated behavior, with
+	  warnings, due to compatibility for HashWithDifferentAccess.
+	  [ruby-core:59154] [Bug #9223]
+
+Tue Dec 17 17:30:56 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-electric.el: Import version 2.1.1 from
+	  https://github.com/knu/ruby-electric.el.
+
+	  * ruby-electric-delete-backward-char: Enable support for number
+	    prefix.
+
+	  * ruby-electric-curlies: Fix electric operation after an open
+	    curly.
+
+Tue Dec 17 16:19:09 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_trace.c (rb_postponed_job_flush): isolate exceptions in
+	  postponed jobs and restore outer ones.  based on a patch by
+	  tarui.  [ruby-core:58652] [Bug #9168]
+
+Tue Dec 17 10:48:04 2013  Aman Gupta <ruby@tmm1.net>
+
+	* configure.in (RUBY_DTRACE_POSTPROCESS): Fix compatibility with
+	  systemtap on linux. stap requires `dtrace -G` post-processing, but
+	  the dtrace compatibility wrapper is very strict about probes.d
+	  syntax.
+
+Tue Dec 17 05:18:17 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master 1c5f4b3.  Allows rubygems
+	  repackagers to disable backward-compatible shared gem directory
+	  behavior.
+	* test/rubygems:  ditto.
+
+Tue Dec 17 05:14:35 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* NEWS (RDoc):  Update version number so I don't have to change it
+	  for the final release.
+
+Mon Dec 16 19:19:19 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_objspace_markable_object_p): should check special_const_p
+	  first (by is_markable_object()).
+
+Mon Dec 16 19:12:54 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/objspace.c (reachable_object_from_root_i): use
+	  compare_by_identity hash to avoid hash modify problem
+	  during iteration.
+	  [Bug #9252]
+
+	* ext/objspace/objspace.c (reachable_objects_from_root): ditto.
+
+Mon Dec 16 18:16:28 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_verify_internal_consistency): should not use
+	  rb_objspace_each_objects() because it call rest_sweep().
+
+Mon Dec 16 18:07:30 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_objspace_markable_object_p): fix last commit (build error).
+
+Mon Dec 16 18:04:28 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_objspace_markable_object_p): it should be live objects.
+
+Mon Dec 16 18:00:51 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_objspace_each_objects): should not clear dont_lazy_sweep
+	  flag in nested case.
+
+Mon Dec 16 16:40:35 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_method.c (rb_method_entry_make): fix WB miss.
+	  Note that rb_method_entry_t::klass is not constified.
+	  We may  constify this field.
+
+	* test/ruby/test_alias.rb: add a test.
+
+Mon Dec 16 14:14:22 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: use gc_verify_internal_consistency() instead of
+	  gc_check_before_marks_i() for check consistency
+	  on RGENGC_CHECK_MODE >= 2.
+
+Mon Dec 16 14:01:48 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* process.c (make_clock_result): add :second as a unit for
+	  Process.clock_gettime.
+
+Mon Dec 16 13:10:54 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: introduce GC.verify_internal_consistency method to verify GC
+	  internal data structure.
+
+	  Now this method only checks generation (old/young) consistency.
+
+Mon Dec 16 11:49:26 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c (gc_info_decode): Fix build errors when compiled with
+	  RGENGC_ESTIMATE_OLDMALLOC=0
+	* gc.c (objspace_malloc_increase): ditto
+
+Sun Dec 15 13:38:29 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/objspace.c (reachable_object_from_root_i):
+	  reachable objects should not include categories and
+	  category_objects because it is noisy information.
+
+	  In fact, objects created after calling
+	  ObjectSpace.reachable_objects_from_root should not be included
+	  as a returning hash objects. Currently, mswin64 platform has a
+	  problem because of this behavior. Should we trace new objects?
+
+Sun Dec 15 07:09:28 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc:  Update to RDoc master 263a9e5.  This improves the
+	  accessibility of the search box.
+
+Sat Dec 14 17:39:00 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_callee_setup_arg_complex): count post
+	  arguments as mandatory arguments.  [ruby-core:57706] [Bug #8993]
+
+	* vm_insnhelper.c (vm_yield_setup_block_args): ditto.
+
+Sat Dec 14 16:26:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (rubylibprefix): replace exec_prefix as well as
+	  bindir and libdir.  a patch by kimuraw (Wataru Kimura) at
+	  [ruby-dev:47852].  [Bug #9160]
+
+Sat Dec 14 14:42:53 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/logger.rb (lock_shift_log): no need to rotate the log file
+	  if it has been rotated by another process.  based on the patch
+	  by no6v (Nobuhiro IMAI) in [ruby-core:58620].  [Bug #9133]
+
+Sat Dec 14 13:01:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (mnew_from_me): method by respond_to_missing? should be
+	  owned by the original class.
+
+Sat Dec 14 11:55:31 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/scanf.rb (IO#scanf): fix mistaken use of rescue modifier.
+	  a patch by Mon_Ouie at [ruby-core:52813].  [Bug #7940]
+
+Sat Dec 14 11:44:52 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* util.c (ruby_qsort): fix potential stack overflow on a large
+	  machine.  based on the patch by Conrad Irwin <conrad.irwin AT
+	  gmail.com> at [ruby-core:51816].  [Bug #7772]
+
+Sat Dec 14 11:25:56 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_mod_const_defined): support nested class path as
+	  well as const_get.  [Feature #7414]
+
+Sat Dec 14 01:31:52 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval.c (rb_rescue2): reuse tags pushed for body proc to protect
+	  rescue proc too.
+
+Sat Dec 14 01:15:51 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (wmap_final_func): Bugfix. Should update *value to new pointer.
+
+Sat Dec 14 01:05:46 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/lib/socket.rb: Don't test $! in "ensure" clause because
+	  it may be set before the body.
+	  Reported by ko1 and mrkn.  [ruby-core:59088] [Bug #9247]
+
+	* lib/cgi/core.rb: Ditto.
+
+	* lib/drb/ssl.rb: Ditto.
+
+Sat Dec 14 00:34:31 2013  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* internal.h (ruby_sized_xrealloc2): fix typo introduced in r44117,
+	  which cause compile error on Solaris.
+
+Sat Dec 14 00:22:16 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread.c: (exec_recursive): use rb_catch_protect() instead of
+	  rb_catch_obj() and PUSH_TAG(), and reduce pushing tags and
+	  machine stack usage.
+
+Sat Dec 14 00:18:08 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (mnew_from_me): achieve the original defined_class from
+	  prepended iclass, to fix inherited owner.
+
+	* proc.c (method_owner): return the defined class, but not the
+	  class which the method object is created from.
+
+Fri Dec 13 22:29:21 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (method_owner): return the class where alias is defined, not
+	  the class original method is defined.
+
+	* vm_method.c (rb_method_entry_make, rb_alias): store the originally
+	  defined class in me.  [Bug #7993] [Bug #7842] [Bug #9236]
+
+	* vm_method.c (rb_method_entry_get_without_cache): cache included
+	  module but not iclass.
+
+Fri Dec 13 16:27:17 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c (gc_info_decode): Use :major_by=>:nofree as fallback reason
+	  when other trigger conditions are present.
+
+Fri Dec 13 13:25:30 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* error.c: add Exception#backtrace_locations.
+	  Now, there are no setter and independent from Exception#backtrace.
+	  [Feature #8960]
+
+	* eval.c (setup_exception): set backtrace locations for `bt_location'
+	  special attribute.
+
+	* vm_backtrace.c (rb_backtrace_to_location_ary): added.
+
+	* internal.h: ditto.
+
+	* test/ruby/test_backtrace.rb: add a test for
+	  Exception#backtrace_locations.
+
+Fri Dec 13 12:01:07 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (garbage_collect_body): use rb_bug() and explicit error message
+	  instead of using assert().
+	  [Bug #9222]
+
+Fri Dec 13 11:52:41 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c: fix comment to remove the word "shady".
+
+	* variable.c: ditto.
+
+Fri Dec 13 11:33:55 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: rename *shady* func/macros.
+	  * RVALUE_RAW_SHADY()   -> RVALUE_WB_PROTECTED_RAW()
+	  * RVALUE_SHADY()       -> RVALUE_RAW_SHADY()
+	  * rgengc_check_shady() -> rgengc_check_relation().
+	  And fix some messages using "shady" to "non-WB-protected".
+
+Fri Dec 13 10:04:23 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/request_set/lockfile.rb:  Import RubyGems master a8d0669
+	  with a 1.8.7 compatibility fix.
+	* test/rubygems/test_gem_request_set_lockfile.rb:  ditto.
+
+Fri Dec 13 09:50:49 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master ddac51f.  Changes:
+
+	  * Allow override for the shared gem installation directory for
+	    rubygems packagers.
+
+	  * Lock gem cache files for read and write to improve thread safety.
+
+	  * Use io/console when available.
+
+	  * Minor cleanup.
+
+	* test/rubygems:  ditto.
+
+Fri Dec 13 08:15:31 2013  Aman Gupta <ruby@tmm1.net>
+
+	* class.c (include_modules_at): use RCLASS_M_TBL_WRAPPER for
+	  equality checks. this avoids an unnecessary deference inside a tight
+	  loop, fixing a performance regression from r43973.
+	* object.c (rb_obj_is_kind_of): ditto.
+	* object.c (rb_class_inherited_p): ditto.
+
+Wed Dec 13 02:00:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (VpSetPTR): fix for limitation of the resulting
+	  precision.
+	  [ruby-core:50269] [Bug #7458]
+
+	* test/bigdecimal/test_bigdecimal.rb (test_limit): add tests for the above
+	  change.
+
+Wed Dec 13 01:56:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (VpAddAbs): put out a conditional branch from
+	  the inside of while-loop.
+
+	* ext/bigdecimal/bigdecimal.c (VpSubAbs): ditto.
+
+Wed Dec 13 01:53:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (VPrint): be a static function, support another
+	  dump formats, and add more information of the given bigdecimal.
+
+	* ext/bigdecimal/bigdecimal.h: ditto.
+
+Wed Dec 11 16:45:58 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* eval.c (rb_raise_jump): call c_return hook immediately after
+	  popping `raise' frame.
+	  Patches by deivid (David Rodriguez). [Bug #8886]
+
+	* test/ruby/test_settracefunc.rb: catch up this fix.
+
+Wed Dec 11 16:01:26 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (rb_hash_reject): return a plain hash, without copying
+	  the class, default value, instance variables, and taintedness.
+	  they had been copied just by accident.
+	  [ruby-core:59045] [Bug #9223]
+
+Wed Dec 11 15:36:15 2013  Aman Gupta <ruby@tmm1.net>
+
+	* compile.c (iseq_specialized_instruction): emit opt_aset instruction
+	  to optimize Hash#[]= and Array#[]= when called with Fixnum argument.
+	  [Bug #9227] [ruby-core:58956]
+
+Wed Dec 11 04:54:03 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master ec8ed22.  Notable changes
+	  include:
+
+	  * Renamed extension_install_dir to extension_dir (backwards
+	    compatible).
+
+	  * Fixed creation of gem.deps.rb.lock file from
+	    TestGemRequestSet#test_install_from_gemdeps_install_dir
+
+	  * Fixed a typo and some documentation.
+
+	* test/rubygems:  ditto.
+
+Wed Dec 11 03:18:08 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* insns.def: Fix optimization bug of Float#/ [Bug #9238]
+
+Tue Dec 10 23:58:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/date/date_strptime.c (date__strptime_internal): unset
+	  case-insensitive flag for [:alpha:], which already implies both
+	  cases, to get rid of backtrack explosion.  [ruby-core:58984]
+	  [Bug #9221]
+
+Tue Dec 10 23:44:42 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_hash): add salt to differentiate false and empty
+	  array.  [ruby-core:58993] [Bug #9231]
+
+	* hash.c (rb_any_hash, rb_hash_hash): ditto.
+
+Tue Dec 10 18:16:09 2013  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* man/ruby.1: [DOC] Use www.ruby-toolbox.com instead of RAA.
+
+Tue Dec 10 17:21:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (wmap_finalize, wmap_aset_update): use simple malloced array
+	  instead of T_ARRAY, to reduce GC pressure.
+
+Tue Dec 10 15:56:48 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c (reflist_add): revert changes from r44109. it is unnecessary
+	  after r44113
+	* gc.c (allrefs_i): fix whitespace
+	* gc.c (allrefs_roots_i): fix whitespace
+
+Tue Dec 10 15:46:03 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (allrefs_add): push obj only if allrefs table doesn't have
+	  obj.
+
+	* gc.c (allrefs_roots_i): ditto.
+
+Tue Dec 10 15:28:10 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (RGENGC_CHECK_MODE): separate checkers to different modes.
+	  * 2: enable generational bits check (for debugging)
+	  * 3: enable livness check
+	  * 4: show all references
+
+Tue Dec 10 15:15:37 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_marks_check): disable GC during checking and
+	  restore malloc_increase info.
+
+Tue Dec 10 14:41:53 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c (reflist_add): return 0 if reference already exists
+	* gc.c (allrefs_add): return 1 on newly added references
+	* gc.c (allrefs_i): follow references to construct complete object
+	  graph. before this patch, RGENGC_CHECK could fail to verify some WB
+	  miss issues. [Bug #9226] [ruby-core:58959]
+
+Tue Dec 10 11:20:56 2013  Aman Gupta <ruby@tmm1.net>
+
+	* ext/objspace/objspace_dump.c (dump_object): include fstring flag on
+	  strings. include gc flags (old, remembered, wb_protected) on all objects.
+	* ext/objspace/objspace_dump.c (Init_objspace_dump): initialize lazy
+	  IDs before first use.
+	* gc.c (rb_obj_gc_flags): new function to retrieve object flags
+	* internal.h (RB_OBJ_GC_FLAGS_MAX): maximum flags allowed for one obj
+	* test/objspace/test_objspace.rb (test_dump_flags): test for above
+	* test/objspace/test_objspace.rb (test_trace_object_allocations):
+	  resolve name before dump (for rb_class_path_cached)
+
+Tue Dec 10 07:48:29 2013  Aman Gupta <ruby@tmm1.net>
+
+	* vm_method.c (rb_clear_method_cache_by_class): fire
+	  ruby::method-cache-clear probe on global or klass-level method cache
+	  clear [Bug #9190]
+	* probes.d (provider ruby): new dtrace probe
+	* doc/dtrace_probes.rdoc: docs for new probe
+	* test/dtrace/test_method_cache.rb: test for new probe
+
+Tue Dec 10 06:14:11 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/.document:  Remove curses from documentable directories.
+
+Tue Dec 10 04:55:36 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/openssl/lib/openssl/digest.rb: Deprecate OpenSSL::Digest::Digest
+	  [Fixes GH-446] https://github.com/ruby/ruby/pull/446
+
+Tue Dec 10 00:41:42 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* ext/thread/thread.c: [DOC] add call-seq alias for Queue#enq, #<<, etc.
+
+	* ext/thread/thread.c (Init_thread): use rb_define_alias instead of
+	  rb_alias to document alias.
+
+Mon Dec  9 20:00:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* internal.h (RCLASS_SERIAL): Add RCLASS_SERIAL as a convenience
+	  accessor for RCLASS_EXT(klass)->class_serial.
+
+	* class.c, vm_insnhelper.c, vm_method.c: Use RCLASS_SERIAL
+
+Mon Dec  9 19:50:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* compile.c, insns.def, test/ruby/test_rubyvm.rb, vm.c, vm_core.h,
+	  vm_insnhelper.c, vm_insnhelper.h, vm_method.c: Rename method_serial
+	  to global_method_state and constant_serial to global_constant_state
+	  after discussion with ko1.
+
+Mon Dec  9 18:50:43 2013  Aman Gupta <ruby@tmm1.net>
+
+	* hash.c (rb_hash_replace): fix segv on `{}.replace({})` introduced
+	  in r44060 [Bug #9230] [ruby-core:58991]
+	* test/ruby/test_hash.rb: regression test for above
+
+Mon Dec  9 18:10:10 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (vm_stat): renamed from ruby_vm_stat.
+	  Should not use ruby_ prefix here.
+
+Mon Dec  9 16:13:31 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (wmap_size): add ObjectSpace::WeakMap#size and #length.
+
+Mon Dec  9 15:26:17 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* test/test_curses.rb: removed.
+
+Mon Dec  9 13:36:55 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* ext/curses, sample/curses: removed curses.
+
+	* NEWS: added an entry for the above change.
+
+Mon Dec  9 12:26:05 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/objspace/object_tracing.c (newobj_i): use cached class path
+	  only to get rid object allocation during NEWOBJ hook.
+	  [ruby-core:58853] [Bug #9212]
+
+	* variable.c (rb_class_path_cached): returns cached class path
+	  only, without searching and allocating new class path string.
+
+Mon Dec  9 11:14:26 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/date/date_parse.c (parse_time): unset case-insensitive flag
+	  for [:alpha:], which already implies both cases, to get rid of
+	  backtrack explosion.  [ruby-core:58876] [Bug #9221]
+
+Mon Dec  9 08:40:40 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master bf37240.  Fixes useless
+	  error message with `gem install -g` with no gem dependencies file.
+	* test/rubygems:  ditto.
+
+Mon Dec  9 04:52:25 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* NEWS:  Update RubyGems entry with notable features.
+
+Mon Dec  9 04:43:54 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/.document:  Add syslog/lib and thread/thread.c to documentable
+	  items.  [ruby-trunk - Bug #9228]
+
+Mon Dec  9 04:28:50 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master 096db36.  Changes include
+	  support for PATH in Gemfile.lock and a typo fix from Akira Matsuda.
+	* test/rubygems:  ditto.
+
+Mon Dec  9 02:10:32 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http/responses.rb:
+	  Add `HTTPIMUsed`, as it is also supported by rack/rails.
+	  RFC - http://tools.ietf.org/html/rfc3229
+	  by Vipul A M <vipulnsward@gmail.com>
+	  https://github.com/ruby/ruby/pull/447 fix GH-447
+
+Sun Dec  8 20:47:35 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (rb_get_kwargs): when values is non-null, remove
+	  extracted keywords from the rest keyword argument.
+
+Sun Dec  8 20:26:54 2013  Yutaka Kanemoto  <kanemoto@ruby-lang.org>
+
+	* common.mk (ruby.imp): avoid circular dependency on AIX
+
+Sun Dec  8 20:21:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* bigdecimal.c (BigDecimal_coerce): convert a Float to a BigDecimal instead
+	  of converting the receiver to a Float.  The reason is there are BigDecimal
+	  instances with precisions that is smaller than the Float's precision.
+	  [ruby-core:58756] [Bug #9192]
+
+	* test/bigdecimal/test_bigdecimal.rb: add tests for the above change.
+
+Sun Dec  8 18:28:20 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* NEWS: [DOC] update NEWS about GC.
+
+Sun Dec  8 17:52:24 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* object.c: [DOC] document Module#singleton_class?.
+
+Sun Dec  8 16:19:28 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (rb_get_kwargs): if optional is negative, unknown
+	  keywords are allowed.
+
+	* vm_insnhelper.c (vm_callee_setup_keyword_arg): check unknown
+	  keywords.
+
+Sun Dec  8 14:55:12 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* array.c (rb_ary_shuffle_bang, rb_ary_sample): rename local variables.
+
+Sun Dec  8 13:59:38 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* array.c (rb_ary_shuffle_bang, rb_ary_sample): check
+	  unknown keywords.
+
+	* test/ruby/test_array.rb (test_shuffle, test_sample): tests for
+	  the above.
+
+Sun Dec  8 13:01:11 2013  Aman Gupta <ruby@tmm1.net>
+
+	* vm.c (ruby_vm_stat): add RubyVM.stat() for access to internal cache
+	  counters. this methods behaves like GC.stat, accepting an optional
+	  hash or symbol argument. [Bug #9190] [ruby-core:58750]
+	* test/ruby/test_rubyvm.rb: test for new method
+
+Sun Dec  8 11:59:40 2013  Aman Gupta <ruby@tmm1.net>
+
+	* hash.c (rb_hash_replace): add a write barrier to fix GC mark miss on
+	  hashes using Hash#replace [Bug #9226] [ruby-core:58948]
+
+Sun Dec  8 11:21:00 2013  Aman Gupta <ruby@tmm1.net>
+
+	* include/ruby/ruby.h: add RGENGC_WB_PROTECTED_NODE_CREF setting
+	  In a large app, this reduces the size of
+	  remembered_shady_object_count by 80%. [Bug #9225] [ruby-core:58947]
+	* gc.c (rb_node_newnode): add FL_WB_PROTECTED flag to NODE_CREF
+	* class.c (rewrite_cref_stack): insert OBJ_WRITE for NODE_CREF
+	* iseq.c (set_relation): ditto
+	* iseq.c (rb_iseq_clone): ditto
+	* vm_eval.c (rb_yield_refine_block): ditto
+	* vm_insnhelper.c (vm_cref_push): ditto
+	* vm_insnhelper.h (COPY_CREF): ditto
+
+Sun Dec  8 10:45:05 2013  Aman Gupta <ruby@tmm1.net>
+
+	* hash.c (hash_aset_str): revert r43870 due to performance issue
+	  [Bug #9188] [ruby-core:58730]
+	* parse.y (assoc): convert literal string hash keys to fstrings
+	* test/ruby/test_hash.rb (class TestHash): expand test
+
+Sun Dec  8 10:22:38 2013  Aman Gupta <ruby@tmm1.net>
+
+	* parse.y (register_symid_str): use fstrings in symbol table
+	  [Bug #9171] [ruby-core:58656]
+	* parse.y (rb_id2str): ditto
+	* string.c (rb_fstring): create frozen_strings on first usage. this
+	  allows rb_fstring() calls from the parser (before cString is created)
+	* string.c (fstring_set_class_i): set klass on fstrings generated
+	  before cString was defined
+	* string.c (Init_String): convert frozen_strings table to String
+	  objects after boot
+	* ext/-test-/symbol/type.c (bug_sym_id2str): expose rb_id2str()
+	* test/-ext-/symbol/test_type.rb (module Test_Symbol): verify symbol
+	  table entries are fstrings
+
+Sun Dec  8 10:24:20 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems.rb:  Update version for upcoming ruby 2.1.0 RC.
+
+Sun Dec  8 10:21:36 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master 14749ce.  This fixes bugs
+	  handling of gem dependencies lockfiles (Gemfile.lock).
+
+	* test/rubygems:  ditto.
+
+Sun Dec  8 09:40:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* array.c (rb_ary_or): use RHASH_TBL_RAW instead of RHASH_TBL
+
+	* process.c (rb_execarg_fixup): use RHASH_TBL_RAW and insert write
+	  barriers where appropriate
+
+	* vm.c (kwmerge_i): use RHASH_TBL_RAW
+
+	* vm.c (HASH_ASET): use rb_hash_aset instead of calling directly into
+	  st_insert
+
+Sat Dec  7 11:15:52 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (rb_hash_reject): copy unrejected elements only to new hash,
+	  so that the change on the original receiver can affect.
+	  [ruby-core:58914] [Bug #9223]
+
+Sat Dec  7 08:25:00 2013  Richo Healey  <richo@psych0tik.net>
+
+	* test/ruby/test_struct.rb: Add regression test for question marks and
+	  bangs in struct members. [Closes GH-468]
+
+Fri Dec  6 19:33:39 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (rb_extract_keywords, rb_get_kwargs): move from
+	  vm_insnhelper.c.
+
+Fri Dec  6 19:18:02 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: change oldmalloc meaning.
+	  Increase oldmalloc_increase with malloc_increase
+	  instead of using obj_memsize_of().
+
+	  This change will avoid the danger of memory full without major GC.
+
+Fri Dec  6 19:08:48 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (atomic_sub_nounderflow): not 0 but val itself.
+
+Fri Dec  6 18:37:11 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_objspace_alloc, Init_heap): initialize
+	  oldmalloc_increase_limit at Init_heap.
+
+	  rb_objspace_alloc() is not called on some platforms.
+
+Fri Dec  6 18:33:39 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (garbage_collect_body): bug fix.
+	  initialize after recording.
+
+Fri Dec  6 17:49:46 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (atomic_sub_nounderflow): added to simplify atomic sub with
+	  care about underflow.
+
+	* gc.c (objspace_malloc_increase): use it.
+
+Fri Dec  6 17:10:44 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (rb_get_kwargs): get keyword argument values from an
+	  option hash, not only checking keys.
+
+	* dir.c (dir_initialize): use rb_get_kwargs.
+
+	* gc.c (gc_start_internal): ditto.
+
+Fri Dec  6 16:47:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* misc/ruby-mode.el (ruby-brace-to-do-end): split single line block.
+
+	* misc/ruby-mode.el (ruby-do-end-to-brace): shrink single line block
+	  to one line.
+
+Fri Dec  6 16:16:30 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_start_internal): do not use rb_gc_start() and rb_gc().
+
+Fri Dec  6 15:24:30 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_start_internal, rb_gc): do not need
+	  heap_pages_free_unused_pages() here.
+	  It was done in after_sweep().
+
+	* gc.c (rb_gc): The reason is now GPR_FLAG_CAPI.
+
+Fri Dec  6 14:05:19 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c (gc_start_internal): GC.start() now accepts two optional
+	  keyword arguments. These can be used to disable full_mark (minor
+	  mark only) or disable immediate_sweep (use lazy sweep). These new
+	  options are useful for benchmarking GC behavior, or performing minor
+	  GC out-of-band.
+	* test/ruby/test_gc.rb (class TestGc): tests for new options.
+
+Fri Dec  6 11:51:28 2013  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/erb.rb: [DOC] fix broken link, Use rubygems.org and www.ruby-toolbox.com instead of RAA.
+	  [Bug #9197]
+
+Fri Dec  6 10:50:54 2013  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/webrick/httprequest.rb: [DOC] Fix broken link of CGI specification by @udzura [fix GH-466]
+
+Thu Dec  6 01:27:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (GetVpValueWithPrec):
+	  treat 0.0 and -0.0 of floating-point numbers specially for an optimization
+	  and to correctly propagate its signbit to the result.
+	  [Bug #9214] [ruby-core:58858]
+
+	* test/bigdecimal/test_bigdecimal.rb: add tests case for the above change.
+
+	* test/bigdecimal/test_bigdecimal_util.rb: ditto.
+
+Thu Dec  5 22:18:01 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (configuration): strip destdir part from prefix to get
+	  rid of duplication.  a patch by arton at [ruby-core:58859].
+	  [ruby-core:58856] [Bug #9213]
+
+Thu Dec  5 21:53:29 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_or): lhs elements are preferred, so should not
+	  replace with rhs elements.
+
+	* test/ruby/test_array.rb (test_OR_in_order): import the test failed
+	  by r43969 from rubyspec/core/array/union_spec.rb.
+
+Thu Dec  5 21:05:42 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_info_decode): fix to avoid syntax error on VS2012.
+
+Thu Dec  5 19:35:35 2013  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* st.c: tweaked comment
+
+Thu Dec  5 19:21:10 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c (struct rb_objspace): rename internal last_collection_flags to
+	  latest_gc_info
+	* gc.c (gc_latest_collection_info): add GC.latest_gc_info() with similar
+	  behavior to GC.stat()
+	* gc.c (rb_gc_latest_gc_info): new c-api for above
+	* gc.c (gc_stat_internal): remove :last_collection_flags from GC.stat
+	* gc.c (gc_profile_decode_flags): remove GC::Profiler.decode_flags
+	* include/ruby/intern.h (rb_gc_latest_gc_info): export new c-api
+	* test/ruby/test_gc.rb (class TestGc): test for new behavior
+	* NEWS: note about new api
+
+	* gc.c (gc_stat_internal): raise TypeError on wrong type
+	* gc.c (gc_stat): fix error message
+
+Thu Dec  5 18:18:08 2013  Aman Gupta <ruby@tmm1.net>
+
+	* ext/objspace/gc_hook.c: remove this file
+	* ext/-test-/tracepoint/gc_hook.c: new filename for above
+	* ext/objspace/objspace.c: remove ObjectSpace.after_gc_start_hook=
+	* test/objspace/test_objspace.rb: remove test
+	* test/-ext-/tracepoint/test_tracepoint.rb: add above test for
+	  tracepoint re-entry
+
+Thu Dec  5 17:44:53 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: change function names vm_ prefix to objspace_ prefix.
+	  They are objspace_ functionality.
+
+Thu Dec  5 16:11:04 2013  Aman Gupta <ruby@tmm1.net>
+
+	* include/ruby/intern.h: add rb_gc_stat() for access to GC.stat
+	  variables from c-api
+	* gc.c (rb_gc_stat): new c-api method. accepts either VALUE hash like
+	  GC.stat, or VALUE symbol key and returns size_t directly. the second
+	  form is useful to avoid allocations, i.e. for usage inside
+	  INTERNAL_EVENT_GC tracepoints.
+	* gc.c (gc_stat): add GC.stat(:key) to return single value instead of hash
+	* gc.c (gc_stat_internal): helper method to retrieve single or all stat values
+	* test/ruby/test_gc.rb (class TestGc): test for new behavior
+	* NEWS: note about this new api
+
+Thu Dec  5 14:40:41 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (rb_hash): revert r43981 and bail out to the outermost frame
+	  when recursion is detected.
+
+Thu Dec  5 13:47:15 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (vm_malloc_size): added.
+	  return malloc_usable_size() if possible.
+
+	* gc.c (MALLOC_ALLOCATED_SIZE): add new setting macro to enable
+	  GC.allocated_size.
+	  If platform supports `malloc_usable_size()' (or similar one),
+	  GC.allocated_size can be implemented with this function.
+	  Default is 0.
+
+	* gc.c (vm_xmalloc, vm_xrealloc, vm_xfree): use vm_malloc_size()
+	  to detect collect allocated size.
+
+	* gc.c (vm_malloc_increase): refactoring.
+
+Thu Dec  5 13:19:03 2013  Aman Gupta <ruby@tmm1.net>
+
+	* include/ruby/ruby.h: remove INTERNAL_EVENT_GC_END and replace with
+	  two new events: GC_END_MARK and GC_END_SWEEP
+	* gc.c (gc_after_sweep): emit GC_END_SWEEP after lazy sweep is done
+	* gc.c (gc_marks_body): emit GC_END_MARK at end of minor/major mark
+	* ext/-test-/tracepoint/tracepoint.c (struct tracepoint_track): tests
+	  for new events.
+	* test/-ext-/tracepoint/test_tracepoint.rb (class TestTracepointObj):
+	  ditto.
+	* NEWS: remove ObjectSpace.after_gc_*_hook. These are only a sample,
+	  and will be removed before ruby 2.1.
+	* ext/objspace/gc_hook.c: remove ObjectSpace.after_gc_end_hook=
+
+Thu Dec  5 10:47:56 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ruby_atomic.h (ATOMIC_PTR_EXCHANGE): atomic exchange function for
+	  a generic pointer.
+
+Thu Dec  5 10:47:09 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (finalize_deferred): flush all deferred finalizers while other
+	  finalizers can get ready to run newly by lazy sweep.
+	  [ruby-core:58833] [Bug #9205]
+
+Thu Dec  5 09:07:59 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c (ruby_gc_set_params): Accept safe_level argument so GC tuning
+	  settings can be applied before rb_safe_level() is available.
+	* internal.h (rb_gc_set_params): ditto.
+	* ruby.c (process_options): Apply GC tuning early during boot process
+	  so boot-time allocations can benefit. This also benefits any code
+	  loaded in via `ruby -r`.
+
+Wed Dec  4 13:02:13 2013  Aman Gupta <ruby@tmm1.net>
+
+	* vm_trace.c (rb_suppress_tracing): Fix initialization of stack
+	  allocated rb_trace_arg_t structure. Without this patch, sometimes
+	  INTERNAL_EVENT_GC would be skipped accidentally inside
+	  rb_threadptr_exec_event_hooks_orig().
+
+Wed Dec  4 12:57:24 2013  Aman Gupta <ruby@tmm1.net>
+
+	* string.c (fstr_update_callback): Improve implementation in r43968
+	  based on feedback from @nagachika. In the existing case, we can
+	  return ST_STOP to prevent any hash modification. In the !existing
+	  case, set both key and value to the fstr.
+
+Wed Dec  4 12:47:54 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/delegate.rb (Delegator#method_missing): ignore the target if not
+	  set, and delegate to global methods.  [ruby-core:58572] [Bug #9155]
+
+	* lib/delegate.rb (Delegator#respond_to_missing): ditto.
+
+	* lib/delegate.rb (SimpleDelegator#__getobj__): yield and return if
+	  not delegated but a block is given, like as Hash#fetch.
+
+	* lib/delegate.rb (DelegateClass#__getobj__): ditto.
+
+Tue Dec  3 23:48:18 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: check malloc_size() availability.
+
+	* gc.c: use malloc_size() with malloc/malloc.h if available.
+
+Tue Dec  3 23:06:20 2013  Narihiro Nakamura  <authornari@gmail.com>
+
+	* object.c (rb_obj_clone): don't copy FL_WB_PROTECTED of a
+	  original object.
+
+Tue Dec  3 22:32:18 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (rb_hash_recursive): make similar (recursive) constructs
+	  return same hash value.  execute recursively, and rewind to the
+	  topmost frame with an object which .eql? to the recursive
+	  object, if recursion is detected.
+
+	* hash.c (rb_hash): detect recursion for all `hash' methods.  each
+	  `hash' methods no longer need to use rb_exec_recursive().
+
+Tue Dec  3 21:53:15 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (rb_catch_protect): new function similar to
+	  rb_catch_obj(), but protect from all global jumps like as
+	  rb_load_protect(), rb_protect(), etc.
+
+Tue Dec  3 20:18:46 2013  Narihiro Nakamura  <authornari@gmail.com>
+
+	* object.c (rb_obj_clone): Protect FL_PROMOTED and FL_WB_PROTECTED
+	  flags of a destination object.
+
+Tue Dec  3 20:16:38 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_hash_rehash): use hash_alloc() instead of rb_hash_new(),
+	  to hide temporary object from ObjectSpace.  [Bug #9187]
+
+Tue Dec  3 17:11:47 2013  Aman Gupta <ruby@tmm1.net>
+
+	* load.c (features_index_add_single): Move loaded_features_index array values off
+	  the ruby heap. [Bug #9201] [ruby-core:58805]
+	* load.c (loaded_features_index_clear_i): Clean up off-heap array structure.
+	* vm.c (rb_vm_mark): Remove unnecessary mark_tbl for loaded_features_index.
+	  This improves minor GC time by 15% in a large application.
+
+Tue Dec  3 17:01:45 2013  Aman Gupta <ruby@tmm1.net>
+
+	* include/ruby/ruby.h (struct RClass): Add wrapper struct around
+	  RClass->m_tbl with serial. This prevents double marking method
+	  tables, since many classes/modules can share the same method table.
+	  This improves minor mark time in a large application by 30%.
+	* internal.h (struct method_table_wrapper): Define new
+	  wrapper struct with additional serial.
+	* internal.h (RCLASS_M_TBL_INIT): New macro for initializing method
+	  table wrapper and st_table.
+	* method.h (void rb_sweep_method_entry): Rename rb_free_m_table to
+	  rb_free_m_tbl for consistency
+	* .gdbinit (define rb_method_entry): Update rb_method_entry gdb helper
+	  for new method table structure.
+	* class.c: Use RCLASS_M_TBL_WRAPPER and
+	  RCLASS_M_TBL_INIT macros.
+	* class.c (rb_include_class_new): Share WRAPPER between module and
+	  iclass, so serial can prevent double marking.
+	* eval.c (rb_prepend_module): ditto.
+	* eval.c (rb_using_refinement): ditto.
+	* gc.c: Mark and free new wrapper struct.
+	* gc.c (obj_memsize_of): Count size of additional wrapper struct.
+
+Tue Dec  3 14:05:49 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_uniq_bang): remove duplicate code.
+
+Tue Dec  3 13:40:42 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (ary_add_hash): set and return values because string keys
+	  will be frozen. [ruby-core:58809] [Bug #9202]
+
+	* array.c (rb_ary_uniq_bang): ditto.
+
+	* array.c (rb_ary_or): ditto.
+
+	* array.c (rb_ary_uniq): ditto.
+
+	* test/ruby/test_array.rb: tests for above.
+
+	The patch is from normalperson (Eric Wong).
+
+Tue Dec  3 12:20:21 2013  Aman Gupta <ruby@tmm1.net>
+
+	* string.c (rb_fstring): Use st_update instead of st_lookup +
+	  st_insert.
+	* string.c (fstr_update_callback): New callback for st_update.
+
+Tue Dec  3 12:17:59 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/rdoc/constant.rb (RDoc::Constant#documented?): workaround for
+	  NoMethodError when the original of alias is not found.
+
+Tue Dec  3 10:43:58 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/openssl/lib/openssl/buffering.rb:  Return ASCII-8BIT strings from
+	  SSLSocket methods.  [ruby-trunk - Bug #9028]
+	* test/openssl/test_ssl.rb:  Test for the above.
+
+Tue Dec  3 09:42:27 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc:  Update to RDoc master 900de99.  Changes include:
+
+	  Fixed documentation display of constants
+
+	  Fixed handling of unknown parsers
+
+	* test/rdoc:  ditto.
+
+Mon Dec  2 22:30:10 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* hash.c (getenv): fixed test failures introduced by r43950.
+	  [ruby-core:58774] [Bug #9195] reported by phasis68 (Heesob Park).
+
+Mon Dec  2 21:49:19 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (rb_hash_rehash): make temporary st_table under the control
+	  of GC. [Bug #9187]
+
+	* test/ruby/test_hash.rb: add a test for above.
+
+Mon Dec  2 17:23:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* variable.c (rb_mod_constants): when calling Module#constants with
+	  inherit=false, there is no need to use a hashtable to deduplicate
+	  constant names. [Feature #9196] [ruby-core:58786]
+
+Mon Dec  2 14:16:52 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/smtp.rb (Net::SMTP#critical):  Always return a
+	  Net::SMTP::Response.  Patch by Pawel Veselov.
+	  [ruby-trunk - Bug #9125]
+	* test/net/smtp/test_smtp.rb:  Test for the above.
+
+Mon Dec  2 05:52:33 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master baa965b.  Notable changes:
+
+	  Copy directories to lib/ when installing extensions.  This completes
+	  the fix for [ruby-trunk - Bug #9106]
+
+	* test/rubygems:  ditto.
+
+Mon Dec  2 02:03:47 2013  Shota Fukumori  <her@sorah.jp>
+
+	* test/ruby/test_case.rb (test_nomethoderror):
+	  Add test related to r43913, r43914
+
+Mon Dec  2 00:53:01 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* hash.c (getenv): use ANSI codepage version of getenv() for miniruby
+	  on Windows.
+	  [ruby-core:58732] [Bug #9189] reported by phasis68 (Heesob Park).
+
+Sun Dec  1 22:14:27 2013  Zachary Scott  <e@zzak.io>
+
+	* doc/contributors.rdoc: [DOC] Import contributors from redmine wiki
+	  Many wiki pages have become outdated and spam-ridden, we will import
+	  these to trunk and begin maintaining them in ruby-trunk. This will
+	  also allow new contributors to easily contribute patches to update
+	  these pages, where previously a redmine account with wiki access was
+	  required. Another bonus is having a contributors file to show thanks
+	  to all of the people who have submitted a patch to Ruby.
+
+Sun Dec  1 18:03:26 2013  Zachary Scott  <e@zzak.io>
+
+	* doc/maintainers.rdoc: [DOC] Current maintainers of Ruby
+
+Sun Dec  1 17:17:36 2013  Zachary Scott  <e@zzak.io>
+
+	* doc/contributing.rdoc: [DOC] Current branch maintainers
+
+Sun Dec  1 17:16:36 2013  Zachary Scott  <e@zzak.io>
+
+	* doc/contributing.rdoc: [DOC] Reporting other (ruby-lang.org) issues
+
+Sun Dec  1 17:15:51 2013  Zachary Scott  <e@zzak.io>
+
+	* doc/contributing.rdoc: [DOC] Current platform maintainers
+
+Sun Dec  1 17:14:55 2013  Zachary Scott  <e@zzak.io>
+
+	* doc/contributing.rdoc: [DOC] Reporting downstream distro issues
+
+Sun Dec  1 14:37:20 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (rb_hash_to_a): specify array capa.
+
+Sun Dec  1 14:15:36 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (rb_hash_rehash): fix to free new st_table when exception
+	  is raised in do_hash(). [Bug #9187]
+
+Sun Dec  1 11:57:59 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/openssl/lib/openssl/buffering.rb: Fix warning in copyright
+
+Sun Dec  1 08:27:28 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master 66e5c39.  Notable changes:
+
+	  Implement gem.deps.rb (Gemfile) .lock support
+
+	  Fixed `gem uninstall` for a relative directory in GEM_HOME.
+
+	* test/rubygems:  ditto.
+
+Sun Dec  1 06:00:49 2013  Aman Gupta <ruby@tmm1.net>
+
+	* test/ruby/test_gc.rb (test_gc_reason): Force minor GC by consuming
+	  free slots to fix test.
+
+Sat Nov 30 21:22:11 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (dir_initialize): check unknown keywords.  [ruby-dev:47152]
+	  [Bug #8060]
+
+Sat Nov 30 18:05:38 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/win32ole/win32ole.c (hash2named_arg): correct declaration to fix
+	  build failure.  a patch by phasis68 (Heesob Park) at
+	  [ruby-core:58710].  [Bug #9184]
+
+Sat Nov 30 17:46:35 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval.c (ruby_cleanup): determine exit status and signal to terminate
+	  before finalization, to get rid of access destroyed T_DATA exception
+	  object.  [ruby-core:58643] [Bug #9167]
+
+Sat Nov 30 16:25:14 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enumerator.c (enumerator_with_index): should not store local variable
+	  address to memoize the arguments.  it is invalidated after the return.
+	  [ruby-core:58692] [Bug #9178]
+
+Sat Nov 30 13:28:13 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* siphash.c (sip_hash24): fix for aligned word access little endian
+	  platforms.  [ruby-core:58658] [Bug #9172]
+
+Sat Nov 30 13:21:15 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (rb_yield_block): implement non-nil block argument.
+
+Fri Nov 29 20:59:39 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* vm_dump.c (rb_vmdebug_debug_print_pre): Bugfix. Get PC directly.
+	  PC is cached into local stack and cfp->pc is incorrect at next of
+	  branch or jump.
+	* vm_exec.h (DEBUG_ENTER_INSN): catch up this change.
+	* vm_core.h: update signature of rb_vmdebug_debug_print_pre.
+
+Fri Nov 29 20:43:57 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* compile.c: Bugsfix for dump_disasm_list.
+	  rb_inspect denies a hidden object. So, insert wrapper that creates
+	  the unhidden one.
+	  adjust->label is null sometimes.
+	  insn_data_line_no makes no sense at all.
+
+Fri Nov 29 18:06:45 2013  Shota Fukumori  <her@sorah.jp>
+
+	* test/ruby/test_case.rb (test_method_missing): Test for r43913.
+
+Fri Nov 29 17:53:22 2013  Shota Fukumori  <her@sorah.jp>
+
+	* vm_insnhelper.c (check_match): Fix SEGV with VM_CHECKMATCH_TYPE_CASE
+	  and class of `pattern` has `method_missing`
+	  [Bug #8872] [ruby-core:58606]
+
+Fri Nov 29 17:06:09 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (rb_yield_block): yield block with rb_block_call_func
+	  arguments.
+
+	* range.c (range_each): use rb_yield_block.
+
+	* include/ruby/ruby.h (RB_BLOCK_CALL_FUNC_ARGLIST): constify argv.
+
+	* enum.c (rb_enum_values_pack): ditto.
+
+	* vm_eval.c (rb_block_call, rb_check_block_call): ditto.
+
+	* include/ruby/ruby.h (RB_BLOCK_CALL_FUNC_ARGLIST): for declaration
+	  argument list of rb_block_call_func.
+
+Fri Nov 29 11:26:43 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (rb_block_call_func): add blockarg.  block
+	  function can take block argument, e.g., proc {|&blockarg| ...}.
+
+Thu Nov 28 21:43:48 2013  Zachary Scott  <e@zzak.io>
+
+	* doc/dtrace_probes.rdoc: [DOC] Import dtrace probes doc from wiki
+
+Thu Nov 28 21:17:32 2013  Zachary Scott  <e@zzak.io>
+
+	* doc/contributing.rdoc: [DOC] Add heading above ChangeLog tips to
+	  setup entry for commits, its not required. Actually easier if
+	  contributors don't include a ChangeLog entry.
+
+Thu Nov 28 21:16:18 2013  Zachary Scott  <e@zzak.io>
+
+	* doc/contributing.rdoc: [DOC] Add coding style heading for patch
+	  rules
+
+Thu Nov 28 21:15:45 2013  Zachary Scott  <e@zzak.io>
+
+	* doc/contributing.rdoc: [DOC] Add notes about deciding what to patch
+
+Thu Nov 28 19:43:45 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* benchmark/bm_hash_flatten.rb: added. r43896 is about 4 times faster
+	  than 2.0.0p353.
+
+	* benchmark/bm_hash_keys.rb: added. r43896 is about 5 times faster
+	  than 2.0.0p353.
+
+	* benchmark/bm_hash_values.rb: added. r43896 is about 5 times faster
+	  than 2.0.0p353.
+
+Thu Nov 28 19:29:04 2013  Zachary Scott  <e@zzak.io>
+
+	* doc/contributing.rdoc: [DOC] Add notes about slideshow proposals
+	  from wiki page: HowToRequestFeatures
+
+Thu Nov 28 17:34:42 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* st.c: add st_values() and st_values_check().
+
+	* include/ruby/st.h: add prototypes for above.
+
+	* hash.c (rb_hash_values): use st_values_check() for performance
+	  improvement if VALUE and st_data_t are compatible.
+
+Thu Nov 28 17:14:14 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* st.c (st_keys): fix not to use Qundef in st.c.
+
+	* include/ruby/st.h: define modified prototype.
+
+	* hash.c (rb_hash_keys): use modified st_keys().
+
+Thu Nov 28 16:34:43 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c: Expose details about last garbage collection via GC.stat.
+	* gc.c (gc_stat): Add :last_collection_flags for reason/trigger/type of
+	  last GC run.
+	* gc.c (gc_prof_sweep_timer_stop): Record HAVE_FINALIZE GPR even
+	  without GC_PROFILE_MORE_DETAIL.
+	* gc.c (gc_profile_flags): Add GC::Profiler.decode_flags to make sense
+	  of GC.stat[:last_collection_flags]
+	* test/ruby/test_gc.rb (class TestGc): Test for above.
+
+Thu Nov 28 16:15:47 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_dup2): extract from rb_cloexec_dup2() and
+	  redirect_dup2().
+
+Tue Nov 28 14:40:00 2013  Akira Matsuda  <ronnie@dio.jp>
+
+	* lib/drb/ssl.rb:  [Doc] Fix typo
+
+Thu Nov 28 13:56:05 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (Doxyfile): tool/file2lastrev.rb needs running with
+	  BASERUBY since r43617.  [ruby-dev:47823] [Bug #9169]
+
+Thu Nov 28 09:18:39 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* string.c (rb_fstring): fstrings should be ELTS_SHARED.
+	  If we resurrect dying objects (non-marked, but not swept yet),
+	  pointing shared string can be collected.
+	  To avoid such issue, fstrings (recorded to fstring_table)
+	  should not be ELTS_SHARED (should not have a shared string).
+
+Thu Nov 28 01:35:08 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* st.c (st_keys): fix to use st_index_t for size of hash.
+
+Thu Nov 28 00:36:52 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* st.c (st_keys): define st_keys(). it writes each key to buffer.
+
+	* hash.c (rb_hash_keys): use st_keys() for performance improvement
+	  if st_data_t and VALUE are compatible.
+
+	* include/ruby/st.h: define macro ST_DATA_COMPATIBLE_P() to predicate
+	  whether st_data_t and passed type are compatible.
+
+	* configure.in: check existence of builtin function to use in
+	  ST_DATA_COMPATIBLE_P().
+
+Thu Nov 28 00:07:28 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* ruby_atomic.h: remove duplicate definitions between ATOMIC_XXX
+	  and ATOMIC_SIZE_XXX.
+
+Wed Nov 27 23:55:50 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* ruby_atomic.h: define ATOMIC_SIZE_CAS() with
+	  __atomic_compare_exchange_n() and refactoring.
+
+Tue Nov 27 21:43:00 2013  Akira Matsuda  <ronnie@dio.jp>
+
+	* lib/irb/notifier.rb:  [Doc] Fix typo
+	* ext/json/lib/json/common.rb:  Ditto.
+
+Tue Nov 27 18:04:57 2013  Akira Matsuda  <ronnie@dio.jp>
+
+	* lib/irb/notifier.rb:  Fix typo
+
+Wed Nov 27 17:54:57 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_mark_stacked_objects): check only when check_mode > 0.
+
+Wed Nov 27 16:07:19 2013  Aman Gupta <ruby@tmm1.net>
+
+	* test/ruby/test_gc.rb (class TestGc): Fix warning in
+	  test_expand_heap.
+
+Wed Nov 27 15:55:52 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c (Init_GC): Add new GC::INTERNAL_CONSTANTS for information about
+	  GC heap/page/slot sizing.
+	* test/ruby/test_gc.rb (class TestGc): test for above.
+
+Wed Nov 27 15:21:17 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c (gc_page_sweep): Fix compile warning from last commit.
+	* hash.c (hash_aset_str): Re-use existing variable to avoid
+	  unnecessary pointer dereferencing.
+
+Wed Nov 27 15:12:55 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_page_sweep): disable debug print.
+
+Wed Nov 27 15:05:59 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_stat): add new information heap_eden_page_length and
+	  heap_tomb_page_length.
+
+	* test/ruby/test_gc.rb: fix to use GC.stat[:heap_eden_page_length]
+	  instead of GC.stat[:heap_length].
+	  This test expects `heap_eden_page_length' (used pages size).
+
+Wed Nov 27 15:02:53 2013  Aman Gupta <ruby@tmm1.net>
+
+	* test/ruby/test_eval.rb (class TestEval): Use assert_same instead of
+	  assert_equal.
+	* test/ruby/test_hash.rb (class TestHash): ditto.
+	* test/ruby/test_iseq.rb (class TestISeq): ditto.
+
+Wed Nov 27 14:50:02 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rinda/ring.rb:  Announce RingServer for the same process.
+	  [ruby-trunk - Bug #9163]
+	* test/rinda/test_rinda.rb:  Tests for the above.
+
+Wed Nov 27 14:37:33 2013  Aman Gupta <ruby@tmm1.net>
+
+	* test/ruby/test_eval.rb (class TestEval): Add test for shared eval
+	  filenames via rb_fstring().
+	* test/ruby/test_iseq.rb (class TestISeq): Add test for shared
+	  iseq labels via rb_fstring(). [Bug #9159]
+
+Wed Nov 27 14:24:55 2013  Aman Gupta <ruby@tmm1.net>
+
+	* hash.c (hash_aset_str): Use rb_fstring() to de-duplicate hash string
+	  keys. Patch by Eric Wong. [Bug #8998] [ruby-core:57727]
+	* test/ruby/test_hash.rb (class TestHash): test for above.
+
+Wed Nov 27 10:39:39 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c: Rename rb_heap_t members:
+	    used -> page_length
+	    limit -> total_slots
+
+Wed Nov 27 08:24:49 2013  Aman Gupta <ruby@tmm1.net>
+
+	* compile.c: Use rb_fstring() to de-duplicate string literals in code.
+	  [ruby-core:58599] [Bug #9159] [ruby-core:54405]
+	* iseq.c (prepare_iseq_build): De-duplicate iseq labels and source
+	  locations.
+	* re.c (rb_reg_initialize): Use rb_fstring() for regex string.
+	* string.c (rb_fstring): Handle non-string and already-fstr arguments.
+	* vm_eval.c (eval_string_with_cref): De-duplicate eval source
+	  filename.
+
+Wed Nov 27 07:13:54 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb: psych version 2.0.2
+	* ext/psych/psych.gemspec: ditto
+
+Wed Nov 27 06:40:18 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/scalar_scanner.rb: fix support for negative
+	  years.
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: ditto
+	* test/psych/test_date_time.rb: test for change.
+	  Fixes: https://github.com/tenderlove/psych/issues/168
+
+Wed Nov 27 04:46:55 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/scalar_scanner.rb: fix regexp for matching TIME
+	  strings.
+	* test/psych/test_date_time.rb: test for change.
+	  Fixes: https://github.com/tenderlove/psych/issues/171
+
+Wed Nov 27 02:26:58 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (str_new4): copy the original capacity so that memsize of
+	  frozen shared string returns correct size.
+
+Wed Nov 27 02:20:13 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_hash): should not ignore the rest of recursive
+	  constructs.
+
+	* hash.c (rb_hash_hash): ditto.
+
+	* range.c (range_hash): ditto.
+
+	* struct.c (rb_struct_hash): ditto.
+
+	* test/-ext-/test_recursion.rb (TestRecursion): separate from
+	  test/ruby/test_thread.rb.
+
+Tue Nov 26 22:43:36 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (rb_hash): cut off if recursion detected to get rid of stack
+	  overflow.  [ruby-core:58567] [Bug #9151]
+
+Tue Nov 26 20:02:39 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_settracefunc.rb: add tests for a_call/a_return
+	  by Brandur <brandur@mutelight.org> [Feature #9120]
+
+Tue Nov 26 19:29:52 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* common.mk: add useful config "set breakpoint pending on"
+	  for run.gdb.
+
+Tue Nov 26 19:17:47 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/object_tracing.c (newobj_i): skip class_path if class
+	  is frozen.
+
+	  rb_class_path() can modify frozen classes (and causes errors).
+	  This patch is temporary. We need no-modification/no-allocation
+	  class path function.
+
+Tue Nov 26 18:12:13 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c: skip "exception check" and "reentrant check (only normal
+	  events)  for internal events.
+
+	  Reentrant check for internal events are remaining.
+
+Tue Nov 26 17:38:16 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c: prohibit to specify normal events and internal events
+	  simultaneously.
+	  I will introduce special care for internal events later.
+
+	* ext/-test-/tracepoint/tracepoint.c: test this behavior.
+
+	* test/-ext-/tracepoint/test_tracepoint.rb: ditto.
+
+Tue Nov 26 16:30:31 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (rb_readlink): fix buffer overflow on a long symlink. since
+	  rb_str_modify_expand() expands from its length but not its capacity,
+	  need to set the length properly for each expansion.
+	  [ruby-core:58592] [Bug #9157]
+
+Tue Nov 26 14:23:17 2013  Aman Gupta <ruby@tmm1.net>
+
+	* ext/objspace/objspace_dump.c (dump_append_string_value): Escape
+	  control characters for strict json parsers.
+	* ext/objspace/objspace_dump.c (objspace_dump): Document File/IO
+	  output option.
+
+Tue Nov 26 11:43:19 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* ruby_atomic.h: use __atomic builtin functions supported by GCC.
+	  __sync family are legacy functions now and it is recommended
+	  that new code use the __atomic functions.
+	  http://gcc.gnu.org/onlinedocs/gcc/_005f_005fatomic-Builtins.html
+
+	* configure.in: check existence of __atomic functions.
+
+Tue Nov 26 10:57:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/bigdecimal/bigdecimal.gemspec: revert Gem::Specification#date
+	  for snapshot/release tarballs.
+
+Tue Nov 26 06:42:50 2013  Aman Gupta <ruby@tmm1.net>
+
+	* NEWS: Add ObjectSpace.after_gc_{start,end}_hook=
+	* ext/objspace/objspace_dump.c: [DOC] catch up dump/dump_all to r43679
+
+Tue Nov 26 04:12:10 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master 612f85a.  Notable changes:
+
+	  Fixed installation and activation of git: and path: gems via
+	  Gem.use_gemdeps
+
+	  Improved documentation coverage
+
+	* test/rubygems:  ditto.
+
+Mon Nov 25 22:23:03 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/xmlrpc.rb: [DOC] Fix link to xmlrpc4r site [Bug #9148]
+	  Patch by Giorgos Tsiftsis
+
+Mon Nov 25 19:48:10 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/uri/common.rb: [DOC] typo fixes by @vipulnsward [Fixes GH-456]
+	  https://github.com/ruby/ruby/pull/456
+	* lib/uri/generic.rb: [DOC] ditto.
+
+Mon Nov 25 14:34:42 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/bigdecimal/bigdecimal.gemspec: bump BigDecimal to 1.2.3 for
+	  proper release date in RubyGems
+
+Mon Nov 25 14:25:08 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/bigdecimal/bigdecimal.gemspec: Remove Gem::Specification#date
+	  We should rely on rubygems to create the date the gem was released
+	  for each version.
+
+Mon Nov 25 06:53:30 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* internal.h: do not use ruby_sized_xrealloc() and ruby_sized_xfree()
+	  if HAVE_MALLOC_USABLE_SIZE (or _WIN32) is defined.
+
+	  We don't need these function if malloc_usable_size() is available.
+
+	* gc.c: catch up this change.
+
+	* gc.c: define HAVE_MALLOC_USABLE_SIZE on _WIN32.
+
+	* array.c (ary_resize_capa): do not use ruby_sized_xfree() with
+	  local variable to avoid "unused local variable" warning.
+	  This change only has few impact.
+
+	* string.c (rb_str_resize): ditto.
+
+Mon Nov 25 05:05:04 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* test/-ext-/tracepoint/test_tracepoint.rb: catch up GC.stat changes
+	  at r43835.
+
+Mon Nov 25 04:45:59 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: continue to change OLDSPACE -> OLDMALLOC.
+	  RGENGC_ESTIMATE_OLDSPACE -> RGENGC_ESTIMATE_OLDMALLOC.
+
+	* gc.c: add a new major GC reason GPR_FLAG_MAJOR_BY_OLDMALLOC.
+
+Mon Nov 25 04:16:09 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: change terminology "..._num" to "..._slots" about slot operation.
+	  * final_num -> final_slots
+	  * objspace_live_num() -> objspace_live_slots()
+	  * objspace_limit_num() -> objspace_limit_slots()
+	  * objspace_free_num() -> objspace_free_slots()
+
+Mon Nov 25 04:03:12 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_stat): add internal information.
+	  * heap_swept_slot
+	  * malloc_increase
+	  * malloc_limit
+	  * remembered_shady_object
+	  * remembered_shady_object_limit
+	  * old_object
+	  * old_object_limit
+	  * oldmalloc_increase
+	  * oldmalloc_limit
+
+	* gc.c (gc_stat): rename names.
+	  * heap_live_num -> heap_live_slot
+	  * heap_free_num -> heap_free_slot
+	  * heap_final_slot -> heap_final_slot
+
+	  Quote from RDoc of GC.stat():
+	    "The contents of the hash are implementation specific and may
+	    be changed in the future."
+
+	* test/ruby/test_gc.rb: catch up this change.
+
+Mon Nov 25 03:59:45 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_gc.rb: catch up last commit.
+	  Now RUBY_GC_OLDSPACE_LIMIT(...) is RUBY_GC_OLDMALLOC_LIMIT(...).
+
+Mon Nov 25 03:10:46 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: change terminology OLDSPACE -> OLDMALLOC.
+	  (oldspace -> oldmalloc for variable names)
+
+	  OLDSPACE is confusing because it is not includes slots.
+	  To more clearly, rename such as (oldspace_limit -> oldmalloc_limit).
+	  It is clear that it measures (estimates) malloc()'ed size.
+
+Mon Nov 25 00:50:03 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* internal.h: use __builtin_bswap16() if possible.
+
+	* configure.in: check existence of __builtin_bswap16().
+
+Sun Nov 24 22:24:19 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigxor_int): Apply BIGLO for long in a BDIGIT expression.
+	  (bigor_int): Ditto.
+	  (bigand_int): Ditto.
+
+Sun Nov 24 18:13:23 2013  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/defines.h (SIZEOF_ACTUAL_BDIGIT): Defined.
+
+	* include/ruby/ruby.h (RBIGNUM_EMBED_LEN_MAX): Use
+	  SIZEOF_ACTUAL_BDIGIT instead of SIZEOF_BDIGITS.
+	  SIZEOF_BDIGITS can be different to sizeof(BDIGIT).
+
+Sun Nov 24 13:49:08 2013  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/defines.h: Don't use int128_t for Bignum.
+	  It's not always faster.
+
+	* bignum.c: Ditto.
+
+Sun Nov 24 10:18:15 2013  Aman Gupta <ruby@tmm1.net>
+
+	* NEWS: Add details about new debugging features and APIs.
+
+Sun Nov 24 09:37:20 2013  Andrew Vit  <andrew@avit.ca>
+
+	* lib/csv.rb: Optimize header hashes by freezing string keys.
+	  [ruby-core:58510]
+
+Sun Nov 24 09:18:06 2013  Aman Gupta <ruby@tmm1.net>
+
+	* ext/objspace/objspace_dump.c (dump_object): Use PRIuSIZE to print
+	  size_t for better win32 compatibility.
+	* test/objspace/test_objspace.rb (test_dump_all): Hold reference to
+	  test string to avoid failure due to GC. Reduce size of failure message
+	  using grep(/TEST STRING/).
+
+Sun Nov 24 08:38:00 2013  Kyle Stevens  <kstevens715@gmail.com>
+
+	* lib/csv.rb: If skip_lines is set to a String, convert it to a Regexp
+	  to prevent the alternative, which is that each line in the CSV gets
+	  converted to a Regexp when calling skip_lines#match.
+
+Sun Nov 24 01:03:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_power): Use FIX2LONG instead
+	  of FIX2INT to avoid conversion error.
+
+Sun Nov 24 00:44:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (RBIGNUM_EMBED_LEN_MAX): define by macros
+	  defined in defines.h, instead of complex and repeated expression.
+
+Sat Nov 23 22:22:26 2013  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/ruby.h (RBIGNUM_EMBED_LEN_MAX): Limit the value to
+	  less than 8.
+
+Sat Nov 23 19:52:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/lib/bigdecimal/math.rb (BigMath.E): Use BigMath.exp.
+	  [Feature #6857] [ruby-core:47130]
+
+Sat Nov 23 19:46:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigMath_s_exp): Optimize the
+	  calculation algorithm to reduce the number of divisions.
+	  This optimization was proposed by Rafal Michalski.
+	  [Feature #6857] [ruby-core:47130]
+
+Sat Nov 23 19:20:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_div2): The signature was
+	  changed to allow us to pass arguments directly.
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_div3): Added for the role of
+	  the old BigDecimal_div2.
+
+Sat Nov 23 12:31:00 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: fix global variable name.
+	  Now we have following environments (and related variable names).
+
+	  * RUBY_GC_HEAP_INIT_SLOTS
+	  * RUBY_GC_HEAP_FREE_SLOTS
+	  * RUBY_GC_HEAP_GROWTH_FACTOR (new from 2.1)
+	  * RUBY_GC_HEAP_GROWTH_MAX_SLOTS (new from 2.1)
+
+	  * obsolete
+	    * RUBY_FREE_MIN       -> RUBY_GC_HEAP_FREE_SLOTS (from 2.1)
+	    * RUBY_HEAP_MIN_SLOTS -> RUBY_GC_HEAP_INIT_SLOTS (from 2.1)
+
+	  * RUBY_GC_MALLOC_LIMIT
+	  * RUBY_GC_MALLOC_LIMIT_MAX (new from 2.1)
+	  * RUBY_GC_MALLOC_LIMIT_GROWTH_FACTOR (new from 2.1)
+
+	  * RUBY_GC_OLDSPACE_LIMIT (new from 2.1)
+	  * RUBY_GC_OLDSPACE_LIMIT_MAX (new from 2.1)
+	  * RUBY_GC_OLDSPACE_LIMIT_GROWTH_FACTOR (new from 2.1)
+
+	* test/ruby/test_gc.rb: catch up this change.
+
+Sat Nov 23 09:45:49 2013  Aman Gupta <ruby@tmm1.net>
+
+	* marshal.c (w_object): Use HASH_PROC_DEFAULT directly from internal.h
+
+Sat Nov 23 08:43:23 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c: Rename heap_pages_swept_num to heap_pages_swept_slots to
+	  clarify meaning (number of slots, not pages).
+
+Sat Nov 23 08:23:23 2013  Aman Gupta <ruby@tmm1.net>
+
+	* lib/set.rb (class SortedSet): Fix source_location for methods
+	  defined via eval.
+
+Sat Nov 23 03:44:03 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master dcce4ff.  Important changes
+	  in this commit:
+
+	  Remove automatic detection of gem dependencies files.  This prevents a
+	  security hole as described in [ruby-core:58490]
+
+	  Fixed bugs for installing git gems.
+
+	* test/rubygems:  ditto.
+
+Fri Nov 22 22:30:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_power):
+	  Round the result value only if the precision is given.
+
+Fri Nov 22 17:20:50 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* transcode.c (str_transcode0): don't scrub invalid chars if
+	  str.encode doesn't have explicit invalid: :replace.
+	  workaround fix for see #8995
+
+Fri Nov 22 17:11:26 2013  Narihiro Nakamura  <authornari@gmail.com>
+
+	* include/ruby/intern.h, internal.h: Expose rb_gc_count().
+
+Fri Nov 22 17:07:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.gemspec: version 1.2.2.
+
+Fri Nov 22 17:04:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_data_type):
+	  Use RUBY_TYPED_FREE_IMMEDIATELY only if it is available.
+
+Fri Nov 22 16:49:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_power): Round the result value.
+	  [Bug #8818] [ruby-core:56802]
+
+	* test/bigdecimal/test_bigdecimal.rb: Add a test for the above fix.
+
+Fri Nov 22 16:25:43 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (heap_set_increment): accept minimum additional page number.
+
+	* gc.c (gc_after_sweep): allocate pages to allocate at least
+	   RUBY_HEAP_MIN_SLOTS.
+	   [Bug #9137]
+
+Fri Nov 22 16:19:52 2013  Narihiro Nakamura  <authornari@gmail.com>
+
+	* include/ruby/intern.h (rb_gc_set_params): Deprecate
+	  rb_gc_set_params because it's only used in ruby internal.
+
+	* internal.h (ruby_gc_set_params): Declare rb_gc_set_params's
+	  alias function.
+
+	* gc.c: ditto.
+
+	* ruby.c: use ruby_gc_set_params.
+
+Fri Nov 22 14:55:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigMath_s_exp): Insert rb_thread_check_ints.
+
+Fri Nov 22 14:35:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigMath_s_exp): Fix the inserting points
+	  of RB_GC_GUARDs.
+
+Fri Nov 22 14:31:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c: Fix indentation.
+
+Fri Nov 22 14:03:00 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/nkf: merge nkf 2.1.3 2a2f2c5.
+
+Fri Nov 22 12:43:52 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* util.c (ruby_strtod): ignore too long fraction part, which does not
+	  affect the result.
+
+Fri Nov 22 12:17:14 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/openssl/lib/openssl/buffering.rb (OpenSSL::Buffering#initialize):
+	  initialize of a module should pass arguments to super.
+
+Fri Nov 22 12:02:58 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_settracefunc.rb: Ignore events from other threads.
+
+Fri Nov 22 10:35:57 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (ruby_vm_destruct): do not use ruby_xfree() after freeing
+	  objspace.
+
+	* gc.c (ruby_mimfree): added. It is similar to ruby_mimmalloc().
+
+	* internal.h: ditto.
+
+Fri Nov 22 09:42:35 2013  Zachary Scott  <e@zzak.io>
+
+	* test/digest/test_digest.rb: Reverse order of assert_equal
+	  Reported by @splattael
+
+Fri Nov 22 09:03:16 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* gc.c: fix build failure on FreeBSD introduced by r43763.
+	  malloc_usable_size() is defined by malloc_np.h on FreeBSD.
+
+	* configure.in: check malloc.h and malloc_np.h.
+
+Fri Nov 22 08:27:13 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master 50a8210.  Important changes
+	  in this commit:
+
+	  RubyGems now automatically checks for gem.deps.rb or Gemfile when
+	  running ruby executables.  This behavior is similar to `bundle exec
+	  rake`.  This change may be reverted before Ruby 2.1.0 if too many bugs
+	  are found.
+
+	* test/rubygems:  ditto.
+
+Thu Nov 21 22:33:59 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: RGENGC_CHECK_MODE should be 0.
+
+Thu Nov 21 21:40:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (VpAlloc): Fix the expr to adjust the size
+	  of the digit array.
+
+Thu Nov 21 21:36:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_sqrt): Fix the precision of
+	  the result BigDecimal of sqrt.
+	  [Bug #5266] [ruby-dev:44450]
+
+	* test/bigdecimal/test_bigdecimal.rb: add tests for the above changes.
+
+Thu Nov 21 18:49:02 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (vm_xrealloc, vm_xfree): use malloc_usable_size() to obtain old
+	  size if available.
+
+Thu Nov 21 18:47:29 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/delegate.rb (SimpleDelegator#__getobj__): target object must be set.
+
+	* lib/delegate.rb (DelegateClass#__getobj__): ditto.
+
+Thu Nov 21 18:28:42 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/tempfile.rb (Tempfile#initialize): use class method to get rid
+	  of warnings when $VERBOSE.
+
+Thu Nov 21 17:43:29 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: rename initial_xxx variables to gc_params.xxx.
+	  They are not only used initial values.
+
+	  Chikanaga-san: Congratulations on RubyPrize!
+
+Thu Nov 21 17:16:00 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: enable "RGENGC_ESTIMATE_OLDSPACE" option as default.
+	  Without this option, some application consumes huge memory.
+	  (and there are only a few performance down)
+
+	  Introduced new environment variables:
+	  * RUBY_GC_HEAP_OLDSPACE (default 16MB)
+	  * RUBY_GC_HEAP_OLDSPACE_MAX (default 128 MB)
+	  * RUBY_GC_HEAP_OLDSPACE_GROWTH_FACTOR (default 1.2)
+
+	* gc.c (initial_malloc_limit): rename to initial_malloc_limit_min.
+
+Thu Nov 21 16:51:34 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/digest/bubblebabble/bubblebabble.c: Teach RDoc digest/bubblebabble
+
+Thu Nov 21 16:50:16 2013  Zachary Scott  <e@zzak.io>
+
+	* test/digest/test_digest.rb: Add more tests for digest/bubblebabble
+
+Thu Nov 21 16:32:47 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/delegate.rb (Delegator#method_missing): try private methods defined in
+	  Kernel after the target.  [Fixes GH-449]
+
+Thu Nov 21 16:25:08 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* test/uri/test_generic.rb (URI#test_merge): Test uri + URI(path)
+	  in addition to uri + path.
+
+Thu Nov 21 15:36:08 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/openssl/lib/openssl/buffering.rb: [DOC] Fix HEREDOC comment for
+	  OpenSSL::Buffering which breaks overview because of RDoc bug
+
+Thu Nov 21 14:46:57 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* eval_intern.h (SAVE_ROOT_JMPBUF): workaround for the failure of
+	  test/ruby/test_exception.rb on Windows.
+	  wrap by __try and __exception statements on mswin to raise SIGSEGV
+	  when EXCEPTION_STACK_OVERFLOW is occurred, because MSVCRT doesn't
+	  handle the exception.
+	  however, (1) mingw-gcc doesn't support __try and __exception
+	  statements, and (2) we cannot retry SystemStackError after this
+	  change yet (maybe crashed) because SEH and longjmp() are too
+	  uncongenial.
+
+	* signal.c (check_stack_overflow, CHECK_STACK_OVERFLOW): now defined on
+	  Windows, too.
+
+	* thread_win32.c (ruby_stack_overflowed_p): ditto.
+
+Thu Nov 21 14:18:24 2013  Zachary Scott  <e@zzak.io>
+
+	* object.c: [DOC] Clarify Object#dup vs #clone [Bug #9128]
+	  Moving existing doc for this comparison to separate section of #dup
+	  Adding examples to document behavior of #dup with Module#extend.
+	  Based on a patch by stevegoobermanhill
+
+Thu Nov 21 14:06:02 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_marks_check): do not dump all refs.
+
+	* gc.c (allrefs_dump_i): fix output format.
+
+Thu Nov 21 13:43:07 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: change RGENGC_CHECK_MODE (>= 2) logic.
+	  Basically, make an object graph of all of living objects before and
+	  after marking and check status.
+
+	  [Before marking: check WB sanity]
+	  If there is a non-old object `obj' pointed from old object
+	  (`parent') then `parent' or `obj' should be remembered.
+
+	  [After marking: check marking miss]
+	  Traversible objects with the object graph should be marked.
+	  (However, this alert about objects pointed by machine context
+	   can be false positive. We only display alert.)
+
+	  [Implementation memo]
+	  objspace_allrefs() creates an object graph.
+	  The object graph is represented by st_table, key is object (VALUE)
+	  and value is referring objects. Referring objects are stored by
+	  "struct reflist".
+
+	* gc.c (init_mark_stack): do not use push_mark_stack_chunk() at init.
+	  This pre-allocation causes failure on is_mark_stack_empty()
+	  without any pushing.
+
+Thu Nov 21 13:40:20 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/observer.rb: [DOC] Clarify default observer method.
+	  By @edward [Fixes GH-450] https://github.com/ruby/ruby/pull/450
+
+Thu Nov 21 13:32:53 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/openssl/ossl_engine.c: [DOC] Documentation for OpenSSL::Engine
+	  This patch is based off work by @vbatts in GH-436 completing the
+	  documentation for this class and its methods.
+	  https://github.com/ruby/ruby/pull/436
+
+Thu Nov 21 10:45:22 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/openssl/lib/openssl/buffering.rb: Remove unused arguments from
+	  OpenSSL::Buffering.new [Fixes GH-445]
+
+Thu Nov 21 10:30:47 2013  Zachary Scott  <e@zzak.io>
+
+	* test/digest/test_digest.rb: Add test for Digest::SHA256.bubblebabble
+
+Wed Nov 20 20:54:01 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* tool/instruction.rb : fix typo.
+
+Wed Nov 20 19:45:22 2013  Tanaka Akira  <akr@fsij.org>
+
+	* random.c (rand_init): Make it possible to specify arbitrary array
+	  for init_genrand().
+
+Wed Nov 20 17:34:13 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* parse.y (rb_gc_mark_symbols): set global_symbols.minor_marked only
+	  when full_mark is 0.
+	  rb_gc_mark_symbols() (with full_mark == 1) can be called by other
+	  than GC (such as rb_objspace_reachable_objects_from_root()).
+
+Wed Nov 20 11:46:38 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/json: merge JSON 1.8.1.
+	  https://github.com/nurse/json/compare/002ac2771ce32776b32ccd2d06e5604de6c36dcd...e09ffc0d7da25d0393873936c118c188c78dbac3
+	* Remove Rubinius exception since transcoding should be working now.
+	* Fix https://github.com/flori/json/issues/162 reported by Marc-Andre
+	  Lafortune <github_rocks@marc-andre.ca>. Thanks!
+	* Applied patches by Yui NARUSE <naruse@airemix.jp> to suppress
+	  warning with -Wchar-subscripts and better validate UTF-8 strings.
+	* Applied patch by ginriki@github to remove unnecessary if.
+	* Add load/dump interface to JSON::GenericObject to make
+	  serialize :some_attribute, JSON::GenericObject
+	  work in Rails active models for convenient
+	  SomeModel#some_attribute.foo.bar access to serialised JSON data.
+
+Wed Nov 20 01:39:02 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/rdoc/constant.rb (RDoc::Constant#documented?): workaround for
+	  NoMethodError when the original of alias is not found.
+
+Tue Nov 19 23:38:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (--with-os-version-style): option to transform target
+	  OS version string.
+
+Tue Nov 19 21:27:33 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/net/http/utils.rb (spawn_server): Specify zero for port to
+	  avoid reusing an allocated port.
+
+	* test/net/http/test_http.rb: Don't specify port here.
+
+	* test/net/http/test_https.rb: Ditto.
+
+Tue Nov 19 18:52:10 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (heap_is_swept_object): use heap_page::before_sweep flag.
+
+Tue Nov 19 18:49:32 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_objspace_reachable_objects_from_root): do major marking.
+
+Tue Nov 19 18:45:40 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_gc_resurrect): added.
+	  rb_fstring() used rb_gc_mark() to avoid freeing used string.
+	  However, rb_gc_mark() set mark bit *and* pushes mark_stack.
+	  rb_gc_resurrect() does only set mark bit if it is before sweeping.
+
+	* string.c (rb_fstring): use rb_gc_resurrect.
+
+	* internal.h: add decl.
+
+Tue Nov 19 09:47:02 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc:  Update to RDoc master a1195ce.  Changes include:
+
+	  Improved accessibility of the main sidebar navigation.
+
+	  Fixed handling of regexp options in HTML source highlighting.
+
+	* test/rdoc:  ditto.
+
+Tue Nov 19 09:33:52 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master 6a3d9f9.  Changes include:
+
+	  Compatibly renamed Gem::DependencyResolver to Gem::Resolver.
+
+	  Added support for git gems in gem.deps.rb and Gemfile.
+
+	  Fixed resolver bugs.
+
+	* test/rubygems: ditto.
+
+	* lib/rubygems/LICENSE.txt:  Updated to license from RubyGems trunk.
+	  [ruby-trunk - Bug #9086]
+
+	* lib/rubygems/commands/which_command.rb:  RubyGems now indicates
+	  failure when any file is missing.  [ruby-trunk - Bug #9004]
+
+	* lib/rubygems/ext/builder:  Extensions are now installed into the
+	  extension install directory and the first directory in the require
+	  path from the gem.  This allows backwards compatibility with msgpack
+	  and other gems that calculate full require paths.
+	  [ruby-trunk - Bug #9106]
+
+
+Tue Nov 19 07:21:56 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in (LOCALTIME_OVERFLOW_PROBLEM): Define it for cross
+	  compiling.
+	  [ruby-core:58391] [Bug #9119] Reported by Luis Lavena.
+	  Analyzed by Heesob Park.
+
+Tue Nov 19 05:55:05 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/rubygems_hook.rb:  Remove debugging puts committed by
+	  accident.
+
+Mon Nov 18 22:47:54 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval_intern.h (TH_PUSH_TAG, TH_EXEC_TAG): refine stack overflow
+	  detection.  chain local tag after setjmp() successed on it, because
+	  calling setjmp() also can overflow the stack.
+	  [ruby-dev:47804] [Bug #9109]
+
+	* vm_eval.c (rb_catch_obj): now th->tag points previous tag until
+	  TH_EXEC_TAG().
+
+	* thread_pthread.c (ruby_init_stack): set stack_start properly by
+	  get_main_stack() if possible.
+
+Mon Nov 18 22:45:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval_jump.c (rb_exec_end_proc): unlink and free procs data before
+	  calling for each procs.  [Bug #9110]
+
+Sun Nov 17 06:33:32 2013  Shota Fukumori  <her@sorah.jp>
+
+	* configure.in: Use $LIBS for base of $SOLIBS, also in darwin.
+	  By this fix, environment that libgmp is located in $LIBS can build
+	  ruby.
+
+Sun Nov 17 01:56:32 2013  Tanaka Akira  <akr@fsij.org>
+
+	* thread_pthread.c (rb_thread_create_timer_thread): Show error
+	  message instead of error number.
+	  (thread_create_core): Ditto.
+
+	* cont.c (fiber_machine_stack_alloc): Ditto.
+
+Sat Nov 16 18:28:08 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/ultralightparser.rb
+	  (REXML::Parsers::UltraLightParser#parse): Fix wrong :start_doctype
+	  position.
+	  [Bug #9061] [ruby-dev:47778]
+	  Patch by Ippei Obayashi. Thanks!!!
+
+	* test/rexml/parser/test_ultra_light.rb: Add a test for this case.
+
+Sat Nov 16 02:13:56 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* cont.c : Introduce ensure rollback mechanism. Please see below.
+
+	* internal.h (ruby_register_rollback_func_for_ensure): catch up above change.
+	  Add rollback mechanism API.
+
+	* vm_core.h (typedef struct rb_vm_struct): catch up above change.
+	  Introduce ensure-rollback relation table.
+
+	* vm_core.h (typedef struct rb_thread_struct): catch up above change.
+	  Introduce ensure stack.
+
+	* eval.c (rb_ensure): catch up above change.
+	  Introduce ensure stack.
+
+	* hash.c : New function for rollback ensure, and register it to
+	  ensure-rollback relation table. [ruby-dev:47803] [Bug #9105]
+
+	Ensure Rollback Mechanism:
+	A rollback's function is a function to rollback a state before ensure's
+	function execution.
+	When the jump of callcc is across the scope of rb_ensure,
+	ensure's functions and rollback's functions are executed appropriately
+	for keeping consistency.
+
+	Current API is unstable, and only internal use.
+
+	ruby_register_rollback_func_for_ensure(ensure_func,rollback_func)
+	This API create relation ensure's function to rollback's function.
+	By registered rollback's function, it is executed When jumping into
+	corresponding rb_ensure scope.
+
+Sat Nov 16 00:18:36 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* eval_jump.c (rb_exec_end_proc): fix double free or corruption error
+	  when reentering by callcc. [ruby-core:58329] [Bug #9110]
+
+	* test/ruby/test_beginendblock.rb: test for above.
+
+Fri Nov 15 01:06:04 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/objspace/objspace_dump.c (dump_output): allow IO object as
+	  output, and use Tempfile.create and return open file instead of
+	  mkstemp() and path name for :file output.
+	  [ruby-core:58266] [Bug #9102]
+
+	* test/objspace/test_objspace.rb (TestObjSpace#dump_my_heap_please):
+	  remove temporary output file.
+
+Thu Nov 14 23:39:00 2013  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* ext/bigdecimal/lib/bigdecimal/util.rb: [DOC] remove example of
+	  Rational#to_d without argument. [Bug #8958]
+
+Thu Nov 14 20:24:15 2013  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* ruby_atomic.h (ATOMIC_SIZE_CAS): fix compile error on Solaris
+	  since r43460.
+
+Thu Nov 14 19:53:00 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/openssl/test_cipher.rb (test_aes_gcm_wrong_tag): Don't use
+	  String#succ because it can make modified (wrong) auth_tag longer
+	  than 16 bytes.  The longer auth_tag makes that
+	  EVP_CIPHER_CTX_ctrl (and internally aes_gcm_ctrl) fail.
+	  [ruby-core:55143] [Bug #8439] reported by Vit Ondruch.
+
+Thu Nov 14 11:33:47 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (foreach_safe_i, hash_foreach_iter): deal with error detected
+	  by ST_CHECK.
+
+	* st.c (st_foreach_check): call with non-error argument in normal case.
+
+Thu Nov 14 02:37:14 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/thread/thread.c: [DOC] This patch accomplishes the following:
+
+	  - Teach RDoc about ConditionVariable
+	  - Teach RDoc about Queue
+	  - Teach RDoc about SizedQueue
+	  - Use fully-qualified namespace for Document-method
+	    This is necessary to separate definitions between classes
+	  - Fix rdoc bug in call_seq vs. call-seq
+	  - Correct doc for SizedQueue#pop patch by @jackdanger [Bug #8988]
+
+Thu Nov 14 01:11:54 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/bigdecimal/lib/bigdecimal/util.rb: [DOC] +precision+ is required
+
+Wed Nov 13 19:21:36 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/bigdecimal/lib/bigdecimal/util.rb: [DOC] Document the required
+	  +precision+ argument for Rational#to_d [Bug #8958]
+
+Wed Nov 13 19:02:05 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/digest/*: [DOC] Fix several typos and broken http links.
+	  Improved examples for Digest overview and fixed a broken example in
+	  Digest::HMAC overview. This patch also adds a description of
+	  Digest::SHA256.bubblebabble to the Digest overview.
+
+	  Patched by @stomar [Bug #9027]
+
+Wed Nov 13 18:32:12 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/openssl/ossl_config.c: [DOC] Document the following:
+
+	  - OpenSSL::ConfigError
+	  - OpenSSL::Config::DEFAULT_CONFIG_FILE
+
+	  Patched by @vbatts via GH-436
+	  https://github.com/ruby/ruby/pull/436
+
+Wed Nov 13 18:03:00 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/openssl/ossl_asn1.c: [DOC] Document parts of
+	  OpenSSL::ASN1::ObjectId included a fix for the class overview, which
+	  previously showed the documentation for Constructive due to missing
+	  ObjectId overview. This patch also includes a note for Primitive.
+
+	  Based on a patch by @vbatts via GH-436
+	  https://github.com/ruby/ruby/pull/436
+
+Wed Nov 13 17:19:36 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/openssl/lib/openssl/config.rb: In #parse use +string+ for +str+
+
+Wed Nov 13 17:09:45 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/openssl/lib/openssl/*.rb: [DOC] Document the following:
+
+	  - Integer#to_bn
+	  - OpenSSL::Buffering module
+	  - Deprecated OpenSSL::Digest::Digest compatibility class
+	  - OpenSSL::Config
+
+	  These changes were based on a patch by @vbatts via GH-436
+	  https://github.com/ruby/ruby/pull/436
+
+Wed Nov 13 10:55:43 2013  Zachary Scott  <e@zzak.io>
+
+	* doc/regexp.rdoc: [DOC] Fix typo in Special global variables section.
+	  Reported by Alex Johnson on ruby-doc.org
+
+Wed Nov 13 10:43:19 2013  Zachary Scott  <e@zzak.io>
+
+	* hash.c: [DOC] Adds an example for Hash#store
+
+Wed Nov 13 09:03:40 2013  Zachary Scott  <e@zzak.io>
+
+	* doc/regexp.rdoc: [DOC] add note about Bug #4044 as suggested by
+	  duerst-san in [ruby-core:43612] [Fixes GH-443] Patched by @rosenfeld
+	  https://github.com/ruby/ruby/pull/443
+
+Tue Nov 12 10:15:14 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* test/rubygems/insure_session.rb:  Remove unused test file.
+
+Tue Nov 12 09:16:24 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master b9213d7.  Changes include:
+
+	  Fixed tests on Windows (I hope) by forcing platform for
+	  platform-dependent tests.
+
+	  Fixed File.exists? warnings.
+
+	  Improved testing infrastructure.
+
+	* test/rubygems:  ditto.
+
+	* test/rdoc/test_rdoc_rubygems_hook.rb:  Switch to util_spec like
+	  RubyGems.
+
+Mon Nov 11 18:31:12 2013  Aman Gupta <ruby@tmm1.net>
+
+	* internal.h: move common string/hash flags to include file.
+	* ext/objspace/objspace_dump.c: remove flags shared above.
+	* hash.c: ditto.
+	* string.c: ditto.
+
+Mon Nov 11 04:36:14 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/specification.rb:  Include 2.2.0.preview.2 when checking
+	  if extensions should be built.  Fixes a ruby-ci failure.
+	* test/rubygems/test_gem_specification.rb:  Test for the above.
+
+Mon Nov 11 03:15:56 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c (symbol2event_flag): add secret feature.
+	  add a_call/a_return events.
+	  a_call is call | b_call | c_call, and same as a_return.
+
+Mon Nov 11 02:51:17 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems: Update to RubyGems master 4bdc4f2.  Important changes
+	  in this commit:
+
+	  RubyGems now chooses the test server port reliably.  Patch by akr.
+
+	  Partial implementation of bundler's Gemfile format.
+
+	  Refactorings to improve the new resolver.
+
+	  Fixes bugs in the resolver.
+
+	* test/rubygems:  Tests for the above.
+
+Mon Nov 11 01:02:06 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/timeout.rb: [DOC] Add note about change from #8730 [Fixes GH-440]
+	* NEWS: [DOC] Improve grammar on change to Timeout
+	  Patched by @srawlins in https://github.com/ruby/ruby/pull/440
+
+Sun Nov 10 23:47:05 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* gc.c (rb_gcdebug_print_obj_condition): catch up recent changes
+	  to compile on GC_DEBUG.
+
+Sun Nov 10 22:16:19 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (exc_cause): captured previous exception.
+
+	* eval.c (make_exception): capture previous exception automagically.
+	  [Feature #8257]
+
+Sun Nov 10 08:37:20 2013  Zachary Scott  <e@zzak.io>
+
+	* thread.c: [DOC] Remove duplicate reference
+
+Sun Nov 10 08:09:29 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/drb/drb.rb: [DOC] promote better windows-safe filename regular
+	  expression in DRb Logger example. Reported by Chris Pheonix
+	  [Bug #9074]
+
+Sun Nov 10 08:03:05 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (rb_define_finalizer, rb_undefine_finalizer): rename and export
+	  finalizer functions.
+
+Sun Nov 10 07:41:22 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/weakref.rb: [DOC] fix typos by @xaviershay [Fixes GH-439]
+	  https://github.com/ruby/ruby/pull/439
+
+Sun Nov 10 06:14:39 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* compile.c (iseq_compile_each): emit opt_str_freeze if the #freeze
+	  method is called on a static string literal with no arguments.
+
+	* defs/id.def (firstline): add freeze so idFreeze is available
+
+	* insns.def (opt_str_freeze): add opt_str_freeze instruction which
+	  pushes a frozen string literal without allocating a new object if
+	  String#freeze is not overridden
+
+	* string.c (Init_String): define String#freeze
+
+	* vm.c (vm_init_redefined_flag): define BOP_FREEZE on String class as
+	  a basic operation
+
+	* vm_insnhelper.h: ditto
+
+	[Feature #8992] [ruby-core:57705]
+
+Sun Nov 10 01:34:14 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (vm_malloc_increase): sweep immediately on GC due to malloc().
+	  To reduce memory usage, sweep as soon as possible.
+	  This behavior is same as Ruby 2.0.0 and before.
+
+Sun Nov 10 00:39:26 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/gc/gcbench.rb: output version description and GC::OPTS.
+
+Sun Nov 10 00:36:42 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (should_be_callable): allow private call since rb_eval_cmd
+	  calls even private methods.
+
+Sun Nov 10 00:33:17 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/racc/rdoc/grammar.en.rdoc: [DOC] fix typo by Tsuyoshi Sawada
+	  [Bug #9077]
+
+Sat Nov  9 22:35:35 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/rbinstall.rb (Gem::Specification.load): obtain spec date from
+	  VCS for the case using git, RUBY_RELEASE_DATE is the last resort.
+	  probably fixes [Bug #9085].
+
+Sat Nov  9 20:56:12 2013  Narihiro Nakamura  <authornari@gmail.com>
+
+	* ext/objspace/object_tracing.c: use declarations in internal.h.
+
+	* ext/objspace/objspace.c: ditto
+
+Sat Nov  9 20:32:59 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/objspace/test_objspace.rb (test_dump_all): Make the test string
+	  shorter to be an embedded string on 32bit environment as well as
+	  64bit environment.
+
+Sat Nov  9 15:00:16 2013  Zachary Scott  <e@zzak.io>
+
+	* io.c: [DOC] ARGF.gets may return nil [Bug #9029] patch by znz
+
+Sat Nov  9 14:54:52 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/rss/*: [DOC] document various constants @steveklabnik [Bug #8812]
+
+Sat Nov  9 14:50:09 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/rss/rss.rb: [DOC] document Time#w3cdtf by @steveklabnik
+	  [Bug #8821]
+
+Sat Nov  9 14:29:04 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/dl/cfunc.c: [DOC] fix typo in example [Bug #8944]
+	  Patched by Heesob Park
+
+Sat Nov  9 13:59:58 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/test/unit/assertions.rb: [DOC] better example for assert_send()
+	  Patch by Andrew Grimm [Bug #8975]
+
+Sat Nov  9 12:45:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* insns.def: unify ic_constant_serial and ic_class_serial into one field
+	  ic_serial. This is possible because these fields are only ever used
+	  exclusively with each other.
+
+	* insns.def: ditto
+	* vm_core.h: ditto
+	* vm_insnhelper.c: ditto
+
+Sat Nov  9 12:31:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* class.c: unify names of vm state version counters to 'serial'.
+	  This includes renaming 'vm_state_version_t' to 'rb_serial_t',
+	  'method_state' to 'method_serial', 'seq' to 'class_serial',
+	  'vmstat' to 'constant_serial', etc.
+
+	* insns.def: ditto
+	* internal.h: ditto
+	* vm.c: ditto
+	* vm_core.h: ditto
+	* vm_insnhelper.c: ditto
+	* vm_insnhelper.h: ditto
+	* vm_method.c: ditto
+
+Sat Nov  9 09:22:29 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (gc_page_sweep, rgengc_rememberset_mark): Refactoring.
+	  Get bitmaps directly.
+
+Sat Nov  9 09:16:36 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (RVALUE_PROMOTE_INFANT): Refactoring. Remove duplicated nonsense
+	  code.
+
+Sat Nov  9 09:04:48 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (gc_marks_test): Bugfix. Fix a struct member name for build
+	  with RGENGC_CHECK_MODE.
+
+Sat Nov  9 08:58:23 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c : Add GC_PROFILE_DETAIL_MEMORY option.
+	  If GC_PROFILE_MORE_DETAIL && GC_PROFILE_DETAIL_MEMORY,
+	  maxrss, minflt and majflt are added to each profile record.
+
+Sat Nov  9 07:41:41 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* internal.h (rb_vm_backtrace_object, rb_gc_count): make prototype
+	  declarations, not old-K&R style.
+
+Sat Nov  9 06:11:14 2013  vo.x (Vit Ondruch)  <vondruch@redhat.com>
+
+	* tool/rbinstall.rb (Gem::Specification#collect): make stable
+	  Gem::Specification.files in default .gemspecs the different order of
+	  "files" in .gemspec files makes them different therefore possibly
+	  conflicting in multilib scenario.  patch by vo.x (Vit Ondruch) at
+	  [ruby-core:57544] [Bug #8623].
+
+Sat Nov  9 01:59:18 2013  Aman Gupta <ruby@tmm1.net>
+
+	* ext/objspace/objspace_dump.c: Add experimental methods to
+	  dump objectspace as json: ObjectSpace.dump_all and
+	  ObjectSpace.dump(obj). These methods are useful for debugging
+	  reference leaks and memory growth in large ruby applications.
+	  [Bug #9026] [ruby-core:57893] [Fixes GH-423]
+	* test/objspace/test_objspace.rb: tests for above.
+
+Sat Nov  9 00:26:50 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (GetLastError): already defined in windows.h on nowadays
+	  cygwin, and caused the confliction with the system provided
+	  definition on cygwin64.  by @kou1okada [Fixes GH-433].
+
+Fri Nov  8 18:35:31 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* lib/open3.rb: receive arguments as keyword arguments.
+
+Fri Nov  8 13:19:26 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* io.c (rb_io_open_with_args): use RARRAY_CONST_PTR().
+
+	* io.c (rb_scan_open_args): use const qualifier for above.
+
+	* io.c (rb_open_file): ditto.
+
+	* io.c (rb_io_open_with_args): ditto.
+
+Fri Nov  8 11:35:06 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* dir.c, pack.c, ruby.c, struct.c, vm_eval.c: use RARRAY_CONST_PTR().
+
+Fri Nov  8 10:58:02 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* compile.c (iseq_build_from_ary_exception): use RARRAY_CONST_PTR().
+
+	* compile.c (iseq_build_from_ary_body): ditto.
+
+Fri Nov  8 10:49:34 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* enumerator.c (append_method): use RARRAY_CONST_PTR().
+
+	* enumerator.c (lazy_init_iterator): ditto.
+
+Fri Nov  8 02:44:29 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (vm_malloc_increase): check GVL before gc_rest_sweep().
+	  vm_malloc_increase() can be called without GVL.
+	  However, gc_rest_sweep() assumes acquiring GVL.
+	  To avoid this problem, check GVL before gc_rest_sweep().
+	  [Bug #9090]
+
+	  This workaround introduces possibility to set malloc_limit as
+	  wrong value (*1). However, this may be rare case. So I commit it.
+
+	  *1: Without rest_sweep() here, gc_rest_sweep() can decrease
+	      malloc_increase due to ruby_sized_xfree().
+
+Fri Nov  8 02:50:25 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/securerandom.rb: [DOC] specify arguments passed to ::random_bytes
+	  By @chastell [Fixes GH-412] https://github.com/ruby/ruby/pull/412
+
+Fri Nov  8 02:43:01 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/objspace/object_tracing.c: [DOC] trace_object_allocations_stop
+	  By @srawlins [Fixes GH-421] https://github.com/ruby/ruby/pull/421
+
+Fri Nov  8 02:34:20 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/net/ftp.rb: [DOC] Document Net::FTP.mdtm and .set_socket and fix
+	  spelling typo, based on patch by @artfuldodger [Fixes GH-426]
+	  https://github.com/ruby/ruby/pull/426
+
+Fri Nov  8 02:14:37 2013  Zachary Scott  <e@zzak.io>
+
+	* array.c: [DOC] Add note about negative indices in Array overview
+	  By @ckaenzig [Fixes GH-427] https://github.com/ruby/ruby/pull/427
+
+Fri Nov  8 02:09:12 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/csv.rb: [DOC] Fix typo in CSV.parse_line by @funky-bibimbap
+	  [Fixes GH-430] https://github.com/ruby/ruby/pull/430
+
+Fri Nov  8 01:01:54 2013  Zachary Scott  <e@zzak.io>
+
+	* golf_prelude.rb: syntax formatting for whitespace [Fixes GH-425]
+	  Patch by @edward https://github.com/ruby/ruby/pull/425
+
+Thu Nov  7 19:36:09 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: modify malloc_limit strategy.
+
+	  * fix default values:
+	    GC_MALLOC_LIMIT_GROWTH_FACTOR
+	    GC_MALLOC_LIMIT: 8MB -> 16MB
+	    GC_MALLOC_LIMIT_MAX: 384MB -> 32MB
+
+	  * algorithm of malloc_limit increment.
+	    if (malloc_increase < malloc_limit) {
+	      next_malloc_limit = malloc_limit * factor
+	      if (malloc_limit > malloc_limit_max) {
+	        malloc_limit = malloc_increase
+	      }
+	    }
+	    This algorithm change malloc_limit from
+	    16MB -> 32MB slowly.
+	    If malloc_limit exceeds malloc_limit_max, then
+	    increase with malloc_increase.
+
+Thu Nov  7 11:06:05 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_shuffle_bang): use RARRAY_PTR_USE() without WB
+	  because there are not new relations.
+
+Thu Nov  7 10:34:12 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_sample): use rb_ary_dup().
+
+Thu Nov  7 09:39:41 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_trace.c (rb_threadptr_exec_event_hooks_orig): errinfo should not
+	  be propagated to trace blocks so that no argument raise does not
+	  throw internal objects.  [ruby-dev:47793] [Bug #9088]
+
+Wed Nov  6 21:30:55 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (gc_before_sweep): Change algorithm of malloc_limit to
+	  conservative for closing to memory consumption of ruby 2.0.
+
+	* gc.c (GC_MALLOC_LIMIT, GC_MALLOC_LIMIT_GROWTH_FACTOR):
+	  Adjust parameters for new algorithm.
+
+Wed Nov  6 21:16:51 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_shift_m): use RARRAY_PTR_USE() without WB because
+	  there are not new relations.
+
+Wed Nov  6 21:05:20 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_reverse): use RARRAY_PTR_USE().
+
+Wed Nov  6 19:30:44 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* common.mk (help): add texts about gcbench.
+
+Wed Nov  6 16:32:32 2013  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/open3.rb: tweaked grammar in comments
+
+Wed Nov  6 11:46:36 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_sample): use RARRAY_AREF() and RARRAY_PTR_USE()
+	  instead of RARRAY_PTR().
+
+Wed Nov  6 10:37:07 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_and): defer hash creation and some refactoring.
+
+Wed Nov  6 09:14:31 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/bm_vm1_gc_short_lived.rb: added.
+	  These GC benchmarks do not reflect practical applications.
+	  They are only for tuning.
+
+	* benchmark/bm_vm1_gc_short_with_complex_long.rb: added.
+
+	* benchmark/bm_vm1_gc_short_with_long.rb: added.
+
+	* benchmark/bm_vm1_gc_short_with_symbol.rb: added.
+
+	* benchmark/bm_vm1_gc_wb_ary.rb: added.
+
+	* benchmark/bm_vm1_gc_wb_obj.rb: added.
+
+	* benchmark/bm_vm_thread_queue.rb: added.
+	  This benchmark is added to know how fast C version of thread.so.
+
+Wed Nov  6 09:13:32 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: define RGENGC_ESTIMATE_OLDSPACE == 0 if USE_RGENGC is 0.
+
+Wed Nov  6 07:13:18 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (Init_GC): add GC::OPTS to show options.
+
+Wed Nov  6 07:12:17 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/gc/gcbench.rb: add some options to make quiet.
+
+Wed Nov  6 04:14:25 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: process merge keys before
+	  reviving objects. Fixes GH psych #168
+	* test/psych/test_merge_keys.rb: test for change
+	  https://github.com/tenderlove/psych/issues/168
+
+Tue Nov  5 21:21:47 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_thread.rb (test_thread_join_in_trap):
+	  Run the test in a different process.
+
+Tue Nov  5 20:14:32 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (is_live_object): A hidden object may be a live object.
+	  [ruby-dev:47788] [Bug #9072]
+
+Tue Nov  5 13:37:19 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: add support to estimate increase of oldspace memory usage.
+	  This is another approach to solve an issue discussed at r43530.
+	  This feature is disabled as default.
+
+	  This feature measures an increment of memory consumption by oldgen
+	  objects. It measures memory consumption for each objects when
+	  the object is promoted. However, measurement of memory consumption
+	  is not accurate now. So that this measurement is `estimation'.
+
+	  To implement this feature, move memsize_of() function from
+	  ext/objspace/objspace.c and expose rb_obj_memsize_of().
+
+	  Some memsize() functions for T_DATA (T_TYPEDDATA) have problem to
+	  measure memory size, so that we ignores T_DATA objects now.
+	  For example, some functions skip NULL check for pointer.
+
+	  The macro RGENGC_ESTIMATE_OLDSPACE enables/disables this feature,
+	  and turned off as default.
+
+	  We need to compare 3gen GC and this feature carefully.
+	  (it is possible to enable both feature)
+	  We need a help to compare them.
+
+	* internal.h: expose rb_obj_memsize_of().
+
+	* ext/objspace/objspace.c: use rb_obj_memsize_of() function.
+
+	* cont.c (fiber_memsize): fix to check NULL.
+
+	* variable.c (autoload_memsize): ditto.
+
+	* vm.c (vm_memsize): ditto.
+
+Tue Nov  5 04:03:07 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (GC_MALLOC_LIMIT_MAX): fix default value 512MB -> 384MB.
+	  512MB is huge.
+
+Tue Nov  5 03:31:23 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: add 3gen GC patch, but disabled as default.
+
+	  RGenGC is designed as 2 generational GC, young and old generation.
+	  Young objects will be promoted to old objects after one GC.
+	  Old objects are not collect until major (full) GC.
+
+	  The issue of this approach is some objects can promoted as old
+	  objects accidentally and not freed until major GC.
+	  Major GC is not frequently so short-lived but accidentally becoming
+	  old objects are not freed.
+
+	  For example, the program "loop{Array.new(1_000_000)}" consumes huge
+	  memories because short lived objects (an array which has 1M
+	  elements) are promoted while GC and they are not freed before major
+	  GC.
+
+	  To solve this problem, generational GC with more generations
+	  technique is known. This patch implements three generations gen GC.
+
+	  At first, newly created objects are "Infant" objects.
+	  After surviving one GC, "Infant" objects are promoted to "Young"
+	  objects.
+	  "Young" objects are promoted to "Old" objects after surviving
+	  next GC.
+	  "Infant" and "Young" objects are collected if it is not marked
+	  while minor GC. So that this technique solves this problem.
+
+	  Representation of generations:
+	  * Infant: !FL_PROMOTED and !oldgen_bitmap [00]
+	  * Young :  FL_PROMOTED and !oldgen_bitmap [10]
+	  * Old   :  FL_PROMOTED and  oldgen_bitmap [11]
+
+	  The macro "RGENGC_THREEGEN" enables/disables this feature, and
+	  turned off as default because there are several problems.
+	  (1) Failed sometimes (Heisenbugs).
+	  (2) Performance down.
+	      Especially on write barriers. We need to detect Young or Old
+	      object by oldgen_bitmap. It is slower than checking flags.
+
+	  To evaluate this feature on more applications, I commit this patch.
+	  Reports are very welcome.
+
+	  This patch includes some refactoring (renaming names, etc).
+
+	* include/ruby/ruby.h: catch up 3gen GC.
+
+	* .gdbinit: fix to show a prompt "[PROMOTED]" for promoted objects.
+
+Tue Nov  5 00:05:51 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* node.h: catch up comments for last commit.
+
+Tue Nov  5 00:02:00 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: rename FL_OLDGEN to FL_PROMOTED.
+	  This flag represents that "this object is promoted at least once."
+
+	* gc.c, debug.c, object.c: catch up this change.
+
+Mon Nov  4 22:20:16 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/xmlrpc: Don't use fixed ports: 8070 and 8071.
+
+Mon Nov  4 15:25:52 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/xmlrpc/webrick_testing.rb (start_server): Initialize the server
+	  at main thread to fail early.
+
+Mon Nov  4 10:08:17 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval_intern.h (TH_EXEC_TAG, TH_JUMP_TAG): get rid of undefined
+	  behavior of setjmp() in rhs of assignment expression.
+	  [ISO/IEC 9899:1999] 7.13.1.1
+
+Sun Nov  3 23:06:51 2013  Tanaka Akira  <akr@fsij.org>
+
+	* sample/test.rb: Make temporary file names unique.
+
+Sun Nov  3 20:41:17 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/xmlrpc: Wrap definitions by TestXMLRPC module.
+
+Sun Nov  3 20:23:38 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/xmlrpc/webrick_testing.rb (stop_server): Don't try to shutdown
+	  the server if the server is not started.
+
+Sun Nov  3 09:35:47 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* load.c (rb_feature_p): deal with default loadable suffixes.
+
+	* load.c (load_lock): initialize statically linked extensions.
+
+	* load.c (search_required, rb_require_safe): deal with statically
+	  linked extensions.
+
+	* load.c (ruby_init_ext): defer initialization of statically linked
+	  extensions until required actually.  [Bug #8883]
+
+Sat Nov  2 15:14:33 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/logger.rb (Logger::LogDevice::LogDeviceMutex#lock_shift_log):
+	  open file can't be removed or renamed on Windows.  [ruby-dev:47790]
+	  [Bug #9046]
+
+	* test/logger/test_logger.rb (TestLogDevice#run_children): don't use
+	  fork.
+
+Sat Nov  2 07:08:43 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/logger.rb: Inter-process locking for log rotation
+	  Current implementation fails log rotation on multi process env.
+	  by sonots <sonots@gmail.com>
+	  https://github.com/ruby/ruby/pull/428 fix GH-428 [Bug #9046]
+
+Fri Nov  1 23:24:31 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (wmap_mark_map): mark live objects only, but delete zombies.
+	  [ruby-dev:47787] [Bug #9069]
+
+Fri Nov  1 22:45:54 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (struct heap_page, gc_page_sweep, gc_sweep): Refactoring for
+	  performance. Add before_sweep condition to heap_page structure.
+
+	* gc.c (rb_gc_force_recycle): Use before_sweep member.
+
+	* gc.c (heap_is_before_sweep, is_before_sweep): Remove. They have not
+	  already been used.
+
+Fri Nov  1 22:20:28 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (make_deferred): Refactoring. Collect codes which should be
+	  atomic.
+
+	* gc.c (make_io_deferred, obj_free, rb_objspace_call_finalizer,
+	  gc_page_sweep): Correspond to the above.
+
+Fri Nov  1 21:40:35 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (typedef struct rb_objspace): Refactoring. Move some members
+	  into profile member.
+
+	* gc.c (newobj_of): Correspond to the above.
+
+	* gc.c (finalize_list): Ditto.
+
+	* gc.c (objspace_live_num): Ditto.
+
+	* gc.c (gc_page_sweep): Ditto.
+
+	* gc.c (rb_gc_force_recycle): Ditto.
+
+	* gc.c (garbage_collect_body): Ditto.
+
+	* gc.c (rb_gc_count): Ditto.
+
+	* gc.c (gc_stat): Ditto.
+
+	* gc.c (gc_prof_set_heap_info): Ditto.
+
+	* gc.c (gc_profile_dump_on): Ditto.
+
+Fri Nov  1 20:53:56 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_scrub): fix typo, should yield invalid byte
+	  sequence to be scrubbed.  reported by znz at IRC.
+
+Fri Nov  1 17:25:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (is_live_object): finalizer may not run because of lazy-sweep.
+	  [ruby-dev:47786] [Bug #9069]
+
+Fri Nov  1 16:55:52 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_scrub): export with fixed length arguments, and
+	  allow nil as replacement string instead of omitting.
+
+Fri Nov  1 06:20:44 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_mutex_struct): reduce rb_mutex_t size by 8 bytes
+	  on 64bit platform. Patch by Eric Wong. [Feature #9068][ruby-core:58114]
+
+Fri Nov  1 01:08:33 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/gc/gcbench.rb: print HWM (high water mark) if possible.
+
+Thu Oct 31 21:48:31 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/streamparser.rb: Add dependency file require.
+	  [Bug #9062] [ruby-dev:47779]
+	  Reported by Ippei Obayashi. Thanks!!!
+
+Thu Oct 31 14:09:32 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_method.c (rb_method_entry_make): fix to pass an ISeq value.
+	  OBJ_WRITTEN() accepts only VALUE.
+
+Wed Oct 30 19:07:57 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-additional.el (ruby-brace-to-do-end)
+	  (ruby-do-end-to-brace, ruby-toggle-block): Remove functions that
+	  are already in the latest released version of Emacs (24.3).
+	  [Bug #7565]
+
+Wed Oct 30 12:44:28 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/Makefile.sub (config.status): add missing variables,
+	  PLATFORM_DIR and THREAD_MODEL.
+
+Wed Oct 30 12:20:32 2013  Tanaka Akira  <akr@fsij.org>
+
+	* time.c (v2w): Normalize a rational value to an integer if possible.
+	  [ruby-core:58070] [Bug #9059] reported by Isaac Schwabacher.
+
+Wed Oct 30 12:08:41 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_uniq_bang): use rb_ary_modify_check() instead of
+	  rb_ary_modify() because the array will be unshared soon.
+
+Wed Oct 30 03:25:10 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: make less garbage when
+	  testing if a string is binary.
+
+Wed Oct 30 03:08:24 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: string subclasses should
+	  not be considered to be binary.  Fixes Psych / GH 166
+	  https://github.com/tenderlove/psych/issues/166
+
+	* test/psych/test_string.rb: test for fix
+
+Tue Oct 29 23:01:18 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_zip): some refactoring.
+
+Tue Oct 29 22:11:37 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_uniq_bang): use st_foreach() instead of for loop.
+
+Tue Oct 29 20:01:58 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* add RUBY_TYPED_FREE_IMMEDIATELY to data types which only use
+	  safe functions during garbage collection such as xfree().
+
+	  On default, T_DATA objects are freed at same points as finalizers.
+	  This approach protects issues such as reported by [ruby-dev:35578].
+	  However, freeing T_DATA objects immediately helps heap usage.
+
+	  Most of T_DATA (in other words, most of dfree functions) are safe.
+	  However, we turned off RUBY_TYPED_FREE_IMMEDIATELY by default
+	  for safety.
+
+	* cont.c: ditto.
+
+	* dir.c: ditto.
+
+	* encoding.c: ditto.
+
+	* enumerator.c: ditto.
+
+	* error.c: ditto.
+
+	* file.c: ditto.
+
+	* gc.c: ditto.
+
+	* io.c: ditto.
+
+	* iseq.c: ditto.
+
+	* marshal.c: ditto.
+
+	* parse.y: ditto.
+
+	* proc.c: ditto.
+
+	* process.c: ditto.
+
+	* random.c: ditto.
+
+	* thread.c: ditto.
+
+	* time.c: ditto.
+
+	* transcode.c: ditto.
+
+	* variable.c: ditto.
+
+	* vm.c: ditto.
+
+	* vm_backtrace.c: ditto.
+
+	* vm_trace.c: ditto.
+
+	* ext/bigdecimal/bigdecimal.c: ditto.
+
+	* ext/objspace/objspace.c: ditto.
+
+	* ext/stringio/stringio.c: ditto.
+
+	* ext/strscan/strscan.c: ditto.
+
+Tue Oct 29 19:48:33 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: fix typo (FL_WB_PROTECT -> FL_WB_PROTECTED).
+
+Tue Oct 29 18:45:08 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c (tp_free): removed because empty free function.
+	  Use RUBY_TYPED_NEVER_FREE instead.
+
+Tue Oct 29 18:37:33 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: introduce new flags for T_TYPEDDATA.
+	  * RUBY_TYPED_FREE_IMMEDIATELY: free the data given by DATA_PTR()
+	    with dfree function immediately.  Otherwise (default), the data
+	    freed at finalization point.
+	  * RUBY_TYPED_WB_PROTECTED: make this object with FL_WB_PROTECT
+	    (not shady).
+
+	* gc.c (obj_free): support RUBY_TYPED_FREE_IMMEDIATELY.
+
+Tue Oct 29 16:49:03 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (vm_malloc_increase): decrease it more carefully.
+
+Tue Oct 29 16:24:52 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (heap_page_resurrect): return a page in tomb heap even if
+	  freelist is NULL.
+
+Tue Oct 29 15:46:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ruby_atomic.h (ATOMIC_SIZE_CAS): new macro, compare and swap size_t.
+
+Tue Oct 29 12:08:05 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/readline/readline.c (readline_getc): Consider
+	  NULL as input.
+
+Tue Oct 29 11:10:08 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c (gc_profile_total_time): fix off-by-one error in
+	  GC::Profiler.total_time.
+	* test/ruby/test_gc.rb (class TestGc): test for above.
+
+Tue Oct 29 09:53:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* insns.def, vm.c, vm_insnhelper.c, vm_insnhelper.h, vm_method.c: split
+	  ruby_vm_global_state_version into two separate counters - one for the
+	  global method state and one for the global constant state. This means
+	  changes to constants do not affect method caches, and changes to
+	  methods do not affect constant caches. In particular, this means
+	  inclusions of modules containing constants no longer globally
+	  invalidate the method cache.
+
+	* class.c, eval.c, include/ruby/intern.h, insns.def, vm.c, vm_method.c:
+	  rename rb_clear_cache_by_class to rb_clear_method_cache_by_class
+
+	* class.c, include/ruby/intern.h, variable.c, vm_method.c: add
+	  rb_clear_constant_cache
+
+	* compile.c, vm_core.h, vm_insnhelper.c: rename vmstat field in
+	  rb_call_info_struct to method_state
+
+	* vm_method.c: rename vmstat field in struct cache_entry to method_state
+
+Mon Oct 28 23:26:04 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/readline/test_readline.rb (teardown): Clear Readline.input and
+	  Readline.output.
+
+Mon Oct 28 21:35:31 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/-test-/file/depend, ext/-test-/postponed_job/depend,
+	  ext/-test-/tracepoint/depend: New files for dependencies.
+
+Mon Oct 28 15:32:18 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/openssl/depend (ossl.o): work around of dependency of
+	  thread_native.h, which depends on headers by THREAD_MODEL.
+	  [ruby-dev:47777]
+
+	* ext/openssl/extconf.rb: need THREAD_MODEL.
+
+Mon Oct 28 14:57:01 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* load.c (ruby_init_ext): share feature names between frame name and
+	  provided features.
+
+Mon Oct 28 14:41:27 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-electric.el: Import ruby-electric.el 2.1 from
+	  https://github.com/knu/ruby-electric.el.
+
+	  * Hitting the newline-and-indent key within a comment fires
+	    comment-indent-new-line.
+
+	  * Introduce a new feature
+	    `ruby-electric-autoindent-on-closing-char`.
+
+	  * Fix fallback behavior of ruby-electric-space/return that
+	    caused error with auto-complete.
+
+Mon Oct 28 13:17:17 2013  Or Cohen  <orc@fewbytes.com>
+
+	* error.c (name_err_to_s): remove no longer needed overriding, since
+	  r30455 which made exc_to_s almost same.  Fixes [GH-413].
+
+Mon Oct 28 12:42:11 2013  Tanaka Akira  <akr@fsij.org>
+
+	* common.mk, ext/objspace/depend, ext/coverage/depend,
+	  ext/-test-/debug/depend, ext/date/depend: Update dependencies.
+
+Mon Oct 28 09:29:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* vm.c: vm_clear_all_cache is not necessary now we use a 64 bit counter
+	  for global state version.
+
+	* vm_insnhelper.h: ruby_vm_global_state_version overflow is unnecessary
+
+Mon Oct 28 07:47:32 2013  Aman Gupta <ruby@tmm1.net>
+
+	* vm_backtrace.c (rb_profile_frame_classpath): do not use rb_inspect
+	  directly, since it might have a custom implementation or show ivars.
+
+Mon Oct 28 04:10:41 2013  Aman Gupta <ruby@tmm1.net>
+
+	* vm_backtrace.c (rb_profile_frame_classpath): handle singleton
+	  methods defined directly on an object.
+	* test/-ext-/debug/test_profile_frames.rb: test for above.
+
+Mon Oct 28 00:52:36 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* struct.c (new_struct): fix warning message, class name and encoding.
+
+Sun Oct 27 20:53:08 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/readline/readline.c: Include ruby/thread.h for
+	  rb_thread_call_without_gvl2.
+	  (readline_rl_instream, readline_rl_outstream): Record FILE
+	  structures allocated by this extension.
+	  (getc_body): New function extracted from readline_getc.
+	  (getc_func): New function.
+	  (readline_getc): Use rb_thread_call_without_gvl2 to invoke getc_func.
+	  [ruby-dev:47033] [Bug #8749]
+	  (clear_rl_instream, clear_rl_outstream): Close FILE structure
+	  allocated by this extension reliably.  [ruby-core:57951] [Bug #9040]
+	  (readline_readline): Use clear_rl_instream and clear_rl_outstream.
+	  (readline_s_set_input): Set readline_rl_instream.
+	  (readline_s_set_output): Set readline_rl_outstream.
+	  (Init_readline): Don't call readline_s_set_input because
+	  readline_getc doesn't block other threads for any FILE structure now.
+
+	  [ruby-dev:47033] [Bug #8749] reported by Nobuhiro IMAI.
+	  [ruby-core:57951] [Bug #9040] reported by Eamonn Webster.
+
+Sat Oct 26 19:31:28 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* gc.c: catch up recent changes to compile on GC_DEBUG,
+	  RGENGC_CHECK_MODE.
+
+Sat Oct 26 19:08:00 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* range.c (range_initialize_copy): disallow to modify after
+	  initialized.
+
+Sat Oct 26 17:48:54 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/open-uri.rb (meta_add_field): : Re-implemented.
+	   [ruby-core:58017] [Bug #9051] patch by Eamonn Webster.
+
+Sat Oct 26 14:35:09 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_profile_dump_on): use "Page" terminology.
+
+Sat Oct 26 13:25:45 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_sweep, gc_heap_lazy_sweep): fix measurement code.
+	  We only need one sweep time measurement without lazy sweep.
+
+Sat Oct 26 11:59:13 2013  Tanaka Akira  <akr@fsij.org>
+
+	* addr2line.c: Include ELF header after system headers (especially
+	  sys/types.h) to avoid compilation failure,
+	  "usr/include/sh3/elf_machdep.h:4:2: error: #error Define _BYTE_ORDER!",
+	  on NetBSD/sh3 (dreamcast, hpcsh, landisk, mmeye).
+
+Sat Oct 26 11:35:22 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: tuning parameters.
+
+	* gc.c (GC_MALLOC_LIMIT): change default value to 16MB.
+
+	* gc.c (GC_MALLOC_LIMIT_GROWTH_FACTOR): change default value to 2.0.
+
+	* gc.c (gc_before_sweep): change decrease ratio of `malloc_limit'
+	  from 1/4 to 1/10.
+
+Sat Oct 26 11:30:07 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (vm_malloc_increase): do gc_rest_sweep() before GC.
+	  gc_rest_sweep() can reduce malloc_increase, so try it before GC.
+	  Otherwise, malloc_increase can be less than malloc_limit at
+	  gc_before_sweep(). This means that re-calculation of malloc_limit
+	  may be wrong value.
+
+Sat Oct 26 06:35:41 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (gc_before_heap_sweep): Restructure code to mean clearly.
+	  heap->freelist is connected to end of list.
+
+Sat Oct 26 04:01:35 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_before_heap_sweep): fix freelist management.
+	  After rb_gc_force_recycle() for a object belonging to heap->freelist,
+	  `heap->using_page->freelist' is not null.
+
+Thu Oct 24 21:57:24 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* parse.y: Remove +(binary) and -(binary) special cases
+	  [Feature #9048]
+
+Thu Oct 24 12:45:53 2013  Zachary Scott  <e@zzak.io>
+
+	* object.c: [DOC] Document first argument also takes string for:
+
+	  rb_mod_const_get, rb_mod_const_set, rb_mod_const_defined
+
+	  Also added note about NameError exception for invalid constant name
+
+Thu Oct 24 12:23:58 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_thread_terminate_all): add a comment why we need
+	  state check and call terminate_i again.
+
+Thu Oct 24 12:15:02 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_thread_terminate_all): add a comment why infinite
+	  sleep is safe.
+
+Thu Oct 24 07:41:42 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c: add new initial_growth_max tuning parameter.
+	  [ruby-core:57928] [Bug #9035]
+	* gc.c (heap_set_increment): when initial_growth_max is set,
+	  do not grow number of slots by more than growth_max at a time.
+	* gc.c (rb_gc_set_params): load optional new tuning value from
+	  RUBY_HEAP_SLOTS_GROWTH_MAX environment variable.
+	* test/ruby/test_gc.rb (class TestGc): test for above.
+
+Thu Oct 24 01:34:12 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/win32.h (rb_infinity_float): suppress overflow in
+	  constant arithmetic warnings.  [ruby-core:57981] [Bug #9044]
+
+Thu Oct 24 00:11:24 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/ostruct.rb: raise NoMethodError with a #name and #args.
+	  Raise RuntimeError when modifying frozen instances
+	  instead of TypeError.
+	  (OpenStruct#each_pair): Return an enumerator with size
+	  (OpenStruct#delete): Use the converted argument.
+	  Patches by Kenichi Kamiya. [Fixes GH-383]
+
+	* test/ostruct/test_ostruct.rb: Added tests for above.
+
+Thu Oct 24 00:10:22 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* array.c: Add Array#to_h [Feature #7292]
+
+	* enum.c: Add Enumerable#to_h
+
+Wed Oct 23 23:48:28 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c: Rename free_min to min_free_slots and free_min_page to
+	  max_free_slots. The algorithm for heap growth is:
+	    if (swept_slots < min_free_slots) pages++
+	    if (swept_slots > max_free_slots) pages--
+
+Wed Oct 23 22:51:03 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/Makefile.sub (config.h): VC 2013 supports C99 mathematics
+	  functions.  [ruby-core:57981] [Bug #9044]
+
+Wed Oct 23 19:13:18 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: move increment from heap to heap_pages.
+	  Share `increment' information with heaps.
+
+	* gc.c: change ratio of heap_pages_free_min_page
+	  to 0.80.
+	  This change means slow down page freeing speed.
+
+Wed Oct 23 17:52:03 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (heap_pages_free_unused_pages): cast to (int) for size_t
+	  variable `i'.
+
+Wed Oct 23 17:39:35 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: introduce tomb heap.
+	  Tomb heap is where zombie objects and ghost (freed slot) lived in.
+	  Separate from other heaps (now there is only eden heap) at sweeping
+	  helps freeing pages more efficiently.
+	  Before this patch, even if there is an empty page at former phase
+	  of sweeping, we can't free it.
+
+	  Algorithm:
+	    (1) Sweeping all pages in a heap and move empty pages from the
+	        heap to tomb_heap.
+	    (2) Check all existing pages and free a page
+	        if all slots of this page are empty and
+	           there is enough empty slots (checking by swept_num)
+
+	  To introduce this patch, there are several tuning of GC parameters.
+
+Wed Oct 23 14:20:56 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_prof_sweep_timer_stop): catch up recent changes
+	  to compile on GC_PROFILE_MORE_DETAIL=1.
+
+Wed Oct 23 11:43:27 2013  Zachary Scott  <e@zzak.io>
+
+	* file.c: [DOC] fix rdoc format of File#expand_path from r43386
+
+Tue Oct 22 21:58:28 2013  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* vm_core.h (enum): avoid syntax error.
+
+	* method.h: ditto.
+
+	* internal.h: ditto.
+
+Tue Oct 22 19:53:16 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (Init_heap): move logics from heap_pages_init() and remove
+	  heap_pages_init().
+
+Tue Oct 22 19:19:05 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: allow multiple heaps.
+	  Now, objects are managed by page. And a set of pages is called heap.
+	  This commit supports multiple heaps in the object space.
+
+	  * Functions heap_* and rb_heap_t manages heap data structure.
+	  * Functions heap_page_* and struct heap_page manage page data
+	    structure.
+	  * Functions heap_pages_* and struct rb_objspace_t::heap_pages
+	    maintains all pages.
+	    For example, pages are allocated from the heap_pages.
+
+	  See https://bugs.ruby-lang.org/projects/ruby-trunk/wiki/GC_design
+	  and https://bugs.ruby-lang.org/attachments/4015/data-heap_structure_with_multiple_heaps.png
+	  for more details.
+
+	  Now, there is only one heap called `eden', which is a space for all
+	  new generated objects.
+
+Tue Oct 22 18:26:12 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/pp.rb (object_address_group): Use Kernel#to_s to obtain the class
+	  name and object address.
+	  This fix a problem caused by %p in C generates variable length
+	  address.
+	  Reported by ko1 via IRC.
+
+Tue Oct 22 16:57:48 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* file.c (File#expand_path): [DOC] improve documentation of File#expand_path.
+	  Based on patch by Prathamesh Sonpatki. [ruby-core:57734] [Bug #9002]
+
+Tue Oct 22 15:59:51 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (glob_helper): don't skip current directories if FNM_DOTMATCH
+	  is given.  [ruby-core:53108] [Bug #8006]
+
+Tue Oct 22 14:53:11 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c: exterminate Zombies.
+	  There is a bug that T_ZOMBIE objects are not collected.
+	  Because there is a pass to miss finalizer postponed job
+	  with multi-threading. This patch solve this issue.
+
+	* vm_trace.c (rb_postponed_job_register_one): set
+	  RUBY_VM_SET_POSTPONED_JOB_INTERRUPT(th) if another same job
+	  is registered.
+	  There is a possibility to remain a postponed job without
+	  interrupt flag.
+
+	* vm_trace.c (rb_postponed_job_register_one): check interrupt
+	  carefully.
+
+	* vm_trace.c (rb_postponed_job_register_one): use additional space
+	  to avoid buffer full.
+
+	* gc.c (gc_finalize_deferred_register): check failure.
+
+	* thread.c (rb_threadptr_execute_interrupts): check
+	  `postponed_job_interrupt' immediately.  There is a possibility
+	  to miss this flag.
+
+Tue Oct 22 12:11:16 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: check if the given CFLAGS and LDFLAGS are working, and
+	  bail out early if not.
+
+Tue Oct 22 00:06:57 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (rb_file_exists_p): warn deprecated name.  [Bug #9041]
+
+Mon Oct 21 23:57:53 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* encoding.c (load_encoding): should preserve outer errinfo, so that
+	  expected exception may not be lost.  [ruby-core:57949] [Bug #9038]
+
+Sun Oct 20 15:41:22 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_io_reopen): create a new, temporary FD via rb_sysopen and
+	  call rb_cloexec_dup2 on it to atomically replace the file fptr->fd
+	  points to.  This leaves no possible window where fptr->fd is invalid
+	  to userspace (even for any threads running w/o GVL).  based on the
+	  patch by Eric Wong <normalperson@yhbt.net> at [ruby-core:57943].
+	  [Bug #9036]
+
+Sun Oct 20 15:29:05 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (rb_syserr_fail_path_in): new function split from
+	  rb_sys_fail_path_in to raise SystemCallError without errno.
+
+	* internal.h (rb_syserr_fail_path): like rb_sys_fail_path but without
+	  errno.
+
+Sun Oct 20 13:58:47 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (rb_obj_wb_unprotect, rb_obj_written),
+	  (rb_obj_write): suppress unused-parameter warnings.
+
+Sun Oct 20 10:32:48 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update RubyGems to master 0886307.  This commit
+	  improves documentation and should bring ruby above 75% documented on
+	  rubyci.
+
+Sun Oct 20 09:30:56 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master 3de7e0f.  Changes:
+
+	  Only attempt to build extensions for newly-installed gems.  This
+	  prevents compilation attempts at gem activation time for gems that
+	  already have extensions built.
+
+	  Fix crash in the dependency resolver for dependencies that cannot be
+	  resolved.
+
+	* test/rubygems:  ditto.
+
+Sun Oct 20 05:24:29 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* variable.c (rb_class2name): should return real class name, not
+	  singleton class or iclass.
+
+Sun Oct 20 04:18:48 2013  Aman Gupta <ruby@tmm1.net>
+
+	* variable.c (rb_class2name): call rb_tmp_class_path() directly to
+	  avoid extra rb_str_dup() from rb_class_name().
+
+Sat Oct 19 19:59:02 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/file.c (code_page): use simple array instead of st_table.
+
+	* encoding.c (rb_locale_encindex): defer initialization of win32 code
+	  page table until encoding db loaded.
+
+Sat Oct 19 08:25:05 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: fix rb_objspace_t.
+	  * make "struct heap" and move most of variables
+	    in rb_objspace_t::heap.
+	  * rename rb_objspace_t::heap::sorted to
+	    rb_objspace_t::heap_sorted_pages
+	    and make a macro heap_sorted_pages.
+	  * rename rb_objspace_t::heap::range to
+	    rb_objspace_t::heap_range and rename macros
+	    lomem/himem to heap_lomem/heap_himem.
+
+Sat Oct 19 07:14:40 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master 42543b6.  Changes:
+
+	  Fix `gem update` for gems with multiple platforms.
+
+	* test/rubygems:  ditto.
+
+Sat Oct 19 06:55:52 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master 0a3814b.  Changes:
+
+	  Fixed extension directory in Gem::Specification#require_paths.
+
+	  Allow installation of gems when $HOME is nonexistent or unwritable.
+
+	  Use proper API in InstallCommand.
+
+	  Improve support for path option in gem dependency files.
+
+	  Remove warnings.
+
+	* test/rubygems:  ditto.
+
+Fri Oct 18 15:23:34 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: change terminology of heap.
+	  Change "slot" to "page". "Slot" is a space of RVALUE.
+	  1. "Heap" consists of a set of "heap_page"s (pages).
+	  2. Each "heap_page" has "heap_page_body".
+	  3. "heap_page_body" has RVALUE (a.k.a. "slot") spaces.
+	  4. "sorted" is a sorted array of "heap_page"s, sorted
+	     by address of heap_page_body (for "is_pointer_to_heap").
+
+	  See https://bugs.ruby-lang.org/attachments/4008/data-heap_structure.png.
+
+Fri Oct 18 09:40:43 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master cee6788.  Changes:
+
+	  Fix test failure on vc10-x64 Server on rubyci.org due to attempting
+	  to File.chmod where it is not supported.
+
+	  Continuing work on improved gem dependencies file (Gemfile) support.
+
+	* test:  ditto.
+
+Fri Oct 18 06:02:49 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master f738c67.  Changes:
+
+	  Fixed test bug for ruby with ENABLE_SHARED = no
+
+	* test/rubygems:  ditto.
+
+Fri Oct 18 00:57:07 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/tsort.rb (TSort.tsort): Extracted from TSort#tsort.
+	  (TSort.tsort_each): Extracted from TSort#tsort_each.
+	  (TSort.strongly_connected_components): Extracted from
+	  TSort#strongly_connected_components.
+	  (TSort.each_strongly_connected_component): Extracted from
+	  TSort#each_strongly_connected_component.
+
+Thu Oct 17 18:50:08 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (CALC_EXACT_MALLOC_SIZE_CHECK_OLD_SIZE): introduced.
+	  This macro enable checker compare with allocated memory and
+	  declared old_size of sized_xfree and sized_xrealloc.
+
+Thu Oct 17 18:45:41 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* string.c (STR_HEAP_SIZE): includes TERM_LEN(str).
+
+	* string.c (rb_str_memsize): use STR_HEAP_SIZE().
+
+Thu Oct 17 17:43:00 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_call_method): set ci->me to 0 when the
+	  original method of a refined method is undef to avoid SEGV.
+
+	* vm_method.c (rb_method_entry_without_refinements): return 0 when
+	  the original method of a refined method is undef to avoid SEGV.
+
+	* test/ruby/test_refinement.rb: related test.
+
+Thu Oct 17 17:38:36 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c, internal.h: rename ruby_xsizefree/realloc to
+	  rb_sized_free/realloc.
+
+	* array.c: catch up these changes.
+
+	* string.c: ditto.
+
+Thu Oct 17 17:32:51 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c, string.c: use ruby_xsizedfree() and ruby_xsizedrealloc().
+
+	* internal.h (SIZED_REALLOC_N): define a macro as REALLOC_N().
+
+Thu Oct 17 17:11:17 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (console_emulator_p): check by comparison between
+	  module handle of WriteConsoleW and kernel32.dll.
+
+	* configure.in, win32/Makefile.sub, win32/setup.mak: no longer need
+	  psapi.lib.
+
+Thu Oct 17 16:53:30 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c, internal.h: add new internal memory management functions.
+	  * void *ruby_xsizedrealloc(void *ptr, size_t new_size, size_t old_size)
+	  * void ruby_xsizedfree(void *x, size_t size)
+	  These functions accept additional size parameter to calculate more
+	  accurate malloc_increase parameter which control GC timing.
+	  [Feature #8985]
+
+Thu Oct 17 14:21:34 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/file.c (rb_file_expand_path_internal): fix memory leaks at
+	  a non-absolute home exception.
+
+Thu Oct 17 14:06:39 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/object_tracing.c (newobj_i): fix memory leak.
+	  There is possibility to remain info due to missing FREEOBJ event.
+	  FREEOBJ events are skipped while suppress_tracing state, for example,
+	  during trace events are invoking.
+
+Thu Oct 17 12:30:16 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/tsort.rb (TSort.each_strongly_connected_component_from):
+	  Extracted from TSort#each_strongly_connected_component_from.
+
+Thu Oct 17 11:07:06 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master 941c21a.  Changes:
+
+	  Restored method bundler wants to remove for compatibility.
+
+	  Improvements to Gemfile compatibility.
+
+	* test/rubygems:  ditto.
+
+Thu Oct 17 08:08:11 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/object_tracing.c (newobj_i): add workaround.
+	  some bugs hits this check.
+
+	* ext/objspace/object_tracing.c (object_allocations_reporter_i): cast as pointer.
+
+Thu Oct 17 07:36:53 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master 2abce58.  Changes:
+
+	  Fixed documentation generation when sdoc and json are installed as
+	  gems.
+
+	  Added some missing documentation.
+
+Thu Oct 17 07:10:26 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/curses/curses.c: [DOC] Cleaned up formatting consistency of rdoc
+	  comments for Curses, including period spacing and column width.
+
+	  This patch also fixed some typos. Thanks to @postmodern for the patch!
+	  [Fixes GH-420] https://github.com/ruby/ruby/pull/420
+
+Thu Oct 17 06:58:42 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/date/date_core.c: [DOC] plural grammar fixed by @scott113341
+	  Contributed via documenting-ruby.org: documenting-ruby/ruby#16
+	  https://github.com/documenting-ruby/ruby/pull/16
+
+Thu Oct 17 05:52:31 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/io/nonblock/nonblock.c: [DOC] Document io/nonblock by reprah
+	  [Fixes GH-418] https://github.com/ruby/ruby/pull/418 based on the
+	  original discussion from documenting-ruby/ruby#18
+
+Thu Oct 17 05:40:33 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (objspace_each_objects): do not skip empty RVALUEs.
+
+Thu Oct 17 05:31:31 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* error.c (rb_bug_reporter_add): return simply 0 if failed.
+	  Please check return value.
+
+Thu Oct 17 05:17:33 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/object_tracing.c: add new method
+	  ObjectSpace.trace_object_allocations_debug_start for GC debugging.
+	  If you encounter the BUG "... is T_NONE" (and so on) on your
+	  application, please try this method at the beginning of your app.
+
+Wed Oct 16 22:35:27 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/io/nonblock/nonblock.c: use rb_cIO instead of VALUE
+
+Wed Oct 16 17:45:13 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* bootstraptest/runner.rb: check nil before calling `signal?'
+	  for a process status.
+
+Wed Oct 16 17:37:17 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* error.c, internal.h (rb_bug_reporter_add): add a new C-API.
+	  rb_bug_reporter_add() allows to register a function which
+	  is called at rb_bug() called.
+
+	* ext/-test-/bug_reporter/bug_reporter.c: add a test for this C-API.
+
+	* ext/-test-/bug_reporter/extconf.rb: ditto.
+
+	* test/-ext-/bug_reporter/test_bug_reporter.rb: ditto.
+
+Wed Oct 16 15:14:21 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* NEWS: add a line into NEWS for last commit.
+
+Wed Oct 16 15:09:14 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/objspace.c: add a new method `reachable_objects_from_root'.
+	  ObjectSpace.reachable_objects_from_root returns all objects referred
+	  from root (called "root objects").
+	  This feature is for deep object analysis.
+
+	* test/objspace/test_objspace.rb: add a test.
+
+Wed Oct 16 15:00:21 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master b955554.  Changes:
+
+	  Fixed NameError for Gem::Ext due to re-entering file lookup in
+	  RubyGems' overridden require.  Bug by Koichi Sasada.
+
+	  Fixed possible circular require warning in tests.
+
+	  Used existing constant for `gem install -g` dependency file list.
+
+	* test/rubygems:  ditto.
+
+Wed Oct 16 09:42:42 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master 278d00d.  Changes:
+
+	  Fixes building extensions without a "clean" make rule
+
+	  Adds gem dependency file autodetection to "gem install -g"
+
+	* test/rubygems:  Tests for the above.
+
+Wed Oct 16 09:12:23 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master commit 2a74263.  This fixes
+	  several bugs in RubyGems 2.2.0.preview.1.
+
+	* test/rubygems:  ditto.
+
+Wed Oct 16 07:25:02 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c (gc_mark_roots): rename roots to be categories
+	  instead of function names.
+
+Tue Oct 15 19:18:13 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.h (rb_objspace_reachable_objects_from_root): added.
+	  This API provides information which objects are root objects.
+	  `category' shows what kind of root objects.
+
+	* gc.c (gc_mark_roots): separate from gc_marks_body().
+
+Tue Oct 15 17:47:59 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c: Fix a typo.  MacOS X doesn't have ENOTSUPP.
+
+Mon Oct 14 12:32:52 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ruby.c (process_options): load statically linked extensions before
+	  rubygems, because of ext/thread.
+
+	* ruby.c (process_options): use gem_prelude instead of requiring
+	  rubygems directly when --enable=gems is given.
+
+	* Makefile.in (DEFAULT_PRELUDES): always use gem_prelude regardless of
+	  --disable-rubygems.
+
+Mon Oct 14 11:07:51 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (have_framework): should append framework options to
+	  $LIBS, not $LDFLAGS.  The former is propagated to exts.mk when
+	  enable-static-linked-ext.
+
+	* lib/mkmf.rb (create_makefile): ranlib on static library, not DLLIB.
+
+Sun Oct 13 23:53:40 2013  Andrew Grimm  <andrew.j.grimm@gmail.com>
+
+	* vsnprintf.c: Fix spelling from compliment to complement.
+	  Patch by @agrimm.
+
+	* include/ruby/ruby.h: ditto
+
+Sun Oct 13 20:59:27 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm.c (Init_BareVM): initialize defined_module_hash here,
+	  Init_top_self() is too late to register core classes/modules.
+
+	* compile.c (compile_array_): no hash to merge if it is empty.
+
+	* vm.c (m_core_hash_merge_kwd): just check keys if only one argument
+	  is given, without merging.
+
+Sat Oct 12 06:35:01 2013-10-11  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rake:  Update to rake 10.1.0
+	* bin/rake:  ditto.
+	* test/rake:  ditto.
+
+	* NEWS:  Update NEWS to include rake 10.1.0 and links to release notes.
+
+Sat Oct 12 03:26:04 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* class.c, variable.c, gc.c (rb_class_tbl): removed.
+
+	* vm.c, vm_core.h (rb_vm_add_root_module): added to register as a
+	  defined root module or class.
+	  This guard helps mark miss from defined classes/modules they are
+	  only referred from C's global variables in C-exts.
+	  Basically, it is extension's bug.
+	  Register to hash object VM has.
+	  Marking a hash objects allows generational GC supports.
+
+	* gc.c (RGENGC_PRINT_TICK): disable (revert).
+
+Sat Oct 12 03:24:49 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_method.c (rb_gc_mark_unlinked_live_method_entries):
+	  revert last commit to introduce debug prints.
+
+Fri Oct 11 21:05:19 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* internal.h, parse.y: use `full_mark' instead of `full_marking'.
+
+Fri Oct 11 20:58:16 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: use terminology `full_mark' instead of `minor_gc'
+	  in mark functions.
+
+Fri Oct 11 20:46:09 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: use __GNUC__ instead of __GCC__.
+
+Fri Oct 11 20:35:59 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c, parse.y: support generational Symbol related marking.
+	  Each symbols has String objects respectively to represent
+	  Symbols.
+	  These objects are marked only when:
+	  * full marking
+	  * new symbols are added
+	  This hack reduce symbols (related strings) marking time.
+	  For example, on my Linux environment, the following code
+	    "20_000_000.times{''}"
+	  with 40k symbols (similar symbol number on Rails 3.2.14 app,
+	  @jugyo tells me) boosts, from 7.3sec to 4.2sec.
+
+	* internal.h: change prototype of rb_gc_mark_symbols().
+
+Fri Oct 11 19:27:22 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-electric.el: Import ruby-electric.el 2.0.1 which fixes
+	  a bug and a flaw with auto-end introduced in the revamp.
+
+	  * ruby-forward-sexp is inappropriate here because it moves the
+	    cursor past the keyword.
+
+	  * Fix a reversed looking-back check in
+	    ruby-electric--block-beg-keyword-at-point-p.
+
+	  * Do not add end again if space or return is hit repeatedly
+	    after a block beginning keyword.
+
+Fri Oct 11 18:12:47 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/gc_hook.c: prohibit reentrant.
+
+Fri Oct 11 18:11:34 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c (rb_postponed_job_flush): fix bit operation.
+
+Fri Oct 11 17:33:24 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-electric.el: Import ruby-electric.el 2.0 from
+	  https://github.com/knu/ruby-electric.el which integrates changes
+	  from another fork by @qoobaa.
+
+	  * Allow ruby-electric-mode to be disabled by introducing a
+	    dedicated key map.  Electric key bindings are now defined in
+	    ruby-electric-mode-map instead of overwriting ruby-mode-map.
+
+	  * Add ruby-electric-mode-hook.
+
+	  * Use a remap in binding ruby-electric-delete-backward-char.
+
+	  * Totally revamp electric keywords and then introduce electric
+	    return.  Modifier keywords are now properly detected making
+	    use of ruby-mode's indentation level calculator, and
+
+	  * block-mid keywords (then, else, elsif, when, rescue and
+	    ensure) also become electric with automatic reindentation.
+
+	  * Add standardized comments for ELPA integration.
+
+	  * Fix interaction with smartparens-mode by disabling its end
+	    keyword completion, since ruby-electric has become more clever
+	    at it.
+
+	  * The custom variable `ruby-electric-keywords` is changed to
+	    `ruby-electric-keywords-alist`, allowing user to fine-grained
+	    configuration.
+
+Fri Oct 11 16:53:28 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c (rb_postponed_job_flush): simplify.
+
+Fri Oct 11 03:36:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread.c (rb_threadptr_execute_interrupts): flush postponed job only
+	  once at last.
+
+	* vm_trace.c (rb_postponed_job_flush): defer calling postponed jobs
+	  registered while flushing to get rid of infinite reentrance of
+	  ObjectSpace.after_gc_start_hook.  [ruby-dev:47400] [Bug #8492]
+
+Thu Oct 10 23:04:00 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_or): remove unused variables.
+
+Thu Oct 10 23:01:16 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_or): use rb_hash_keys().
+
+Thu Oct 10 21:36:16 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_compact_bang): use ary_resize_smaller().
+
+Thu Oct 10 17:25:28 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (vm_exec): support :b_return event for "lambda{return}.call".
+	  [Bug #8622]
+
+	* test/ruby/test_settracefunc.rb: add a test.
+
+Thu Oct 10 13:52:37 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c (postponed_job): use preallocated buffer.
+	  Pre-allocate MAX_POSTPONED_JOB (1024) sized buffer
+	  and use it.
+	  If rb_postponed_job_register() cause overflow, simply it
+	  fails and returns 0.
+	  And maybe rb_postponed_job_register() is signal safe.
+
+	* vm_core.h: change data structure.
+
+Thu Oct 10 11:11:33 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm.c (Init_VM): hide also the singleton class of frozen-core, not
+	  only frozen-core itself.
+
+Thu Oct 10 06:02:08 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_rand.rb: fix r43224. local variable `e' is
+	  no longer available.
+
+Thu Oct 10 00:02:35 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* numeric.c (fix_aref): avoid a possible undefined behavior.
+	  1L << 63 on 64-bit platform is undefined, at least, according to
+	  ISO/IEC 9899 (C99) 6.5.7.
+
+Wed Oct  9 23:57:02 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (id_for_attr): avoid inadvertent symbol creation.
+
+Wed Oct  9 18:03:01 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_method.c (rb_attr): preserve encoding of the attribute ID in
+	  error message.
+
+Wed Oct  9 17:40:16 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_fstring): because of lazy sweep, str may be unmarked
+	  already and swept at next time, so mark it for the time being.
+	  [ruby-core:57756]
+
+Wed Oct  9 13:53:14 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compar.c (cmp_eq): fail if recursion.  [ruby-core:57736] [Bug #9003]
+
+	* thread.c (rb_exec_recursive_paired_outer): new function which is
+	  combination of paired and outer variants.
+
+Wed Oct  9 09:18:14 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/debug.h,
+	  vm_backtrace.c (rb_profile_frame_full_label): add new C API
+	  rb_profile_frame_full_label() which returns label with
+	  qualified method name.
+	  Note that in future version of Ruby label() may return
+	  same return value of full_label().
+
+	* ext/-test-/debug/profile_frames.c,
+	  test/-ext-/debug/test_profile_frames.rb: fix a test for this change.
+
+
+Wed Oct  9 00:55:51 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* load.c (load_lock): display backtrace to $stderr at circular
+	  require.
+
+	* vm_backtrace.c (rb_backtrace_print_to): new function to print
+	  backtrace to the given output.
+
+Tue Oct  8 21:03:35 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_backtrace.c, include/ruby/debug.h: add new APIs
+	  * VALUE rb_profile_frame_method_name(VALUE frame)
+	  * VALUE rb_profile_frame_qualified_method_name(VALUE frame)
+
+	* iseq.c (rb_iseq_klass), internal.h: add new internal function
+	  rb_iseq_method_name().
+
+	* ext/-test-/debug/profile_frames.c (profile_frames),
+	  test/-ext-/debug/test_profile_frames.rb: add a test.
+
+Tue Oct  8 16:11:11 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_uniq): use rb_hash_values(), as well as the case no
+	  block is given.
+
+	* internal.h: define rb_hash_values() as internal API.
+
+Tue Oct  8 13:53:21 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_uniq): use rb_hash_keys().
+
+	* internal.h: define rb_hash_keys() as internal API.
+
+	* hash.c (rb_hash_keys): ditto.
+
+Tue Oct  8 10:56:39 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* cont.c: disable FIBER_USE_NATIVE on GNU/Hurd because it doesn't
+	  support a combination getcontext() and threads. Patch by
+	  Gabriele Giacone (1o5g4r8o@gmail.com). [Bug #8990][ruby-core:57685]
+
+Tue Oct  8 05:58:12 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/time.rb (Time.strptime): Time.strptime('0', '%s') returns local
+	  time Time object as Ruby 2.0 and before.
+
+Tue Oct  8 05:40:37 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* .travis.yml:  Rebuild Travis CI's "ruby-head" version on successful
+	  build.  Patch by Konstantin Haase.  [Fixes GH-417]
+	  https://github.com/ruby/ruby/pull/417
+
+Tue Oct  8 04:28:25 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-mode.el: Use preceding-char/following-char
+	  (returning 0 at BOF/EOF) instead of char-before/char-after
+	  (returning nil at BOF/EOF) to avoid error from char-syntax when
+	  at BOF/EOF.
+
+Tue Oct  8 04:12:45 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-additional.el (ruby-mode-set-encoding): Add a missing
+	  else clause to unbreak with `cp932`, etc.
+
+	* misc/ruby-mode.el (ruby-mode-set-encoding): Ditto.
+
+Tue Oct  8 03:57:34 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-additional.el (ruby-mode-set-encoding): Use
+	  `default-buffer-file-coding-system` if the :prefer-utf-8
+	  property is not available.
+
+	* misc/ruby-mode.el (ruby-mode-set-encoding): Ditto.
+
+	* misc/ruby-additional.el (ruby-encoding-map): Override the
+	  default value.
+
+Tue Oct  8 03:19:19 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-additional.el (ruby-mode-set-encoding): Add support
+	  for `prefer-utf-8` which was introduced in Emacs trunk.
+
+	* misc/ruby-additional.el (ruby-encoding-map): Add a mapping from
+	  `japanese-cp932` to `cp932` to fix the problem where saving a
+	  source file written in Shift_JIS twice would end up having
+	  `coding: japanese-cp932` which Ruby could not recognize.
+
+	* misc/ruby-additional.el (ruby-mode-set-encoding): Add support
+	  for encodings mapped to nil in `ruby-encoding-map`.
+
+	* misc/ruby-additional.el (ruby-encoding-map): Map `us-ascii` and
+	  `utf-8` to nil by default, meaning they need not be explicitly
+	  declared in magic comment.
+
+	* misc/ruby-additional.el (ruby-encoding-map): Add type
+	  declaration for better customize UI.
+
+	* misc/ruby-mode.el: Ditto for the above.
+
+Tue Oct  8 00:14:53 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-additional.el: Add a standard header and footer,
+	  including (provide 'ruby-additional).
+
+Mon Oct  7 22:52:45 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-electric.el (ruby-electric-space-can-be-expanded-p):
+	  Return nil to avoid "end" insertion when in smartparens-mode
+	  that is configured to insert "end" for the same keyword.
+
+	* misc/ruby-electric.el (ruby-electric-keywords): New custom
+	  variable to replace `ruby-electric-simple-keywords-re` with.
+
+Mon Oct  7 22:52:16 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-additional.el: Use preceding-char/following-char
+	  (returning 0 at BOF/EOF) instead of char-before/char-after
+	  (returning nil at BOF/EOF) to avoid error from char-syntax when
+	  at BOF/EOF.
+
+Mon Oct  7 22:45:20 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* cont.c (FIBER_USE_NATIVE): split long conditions.
+
+Mon Oct  7 20:29:31 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/time.rb: [DOC] typo in Time.rb overview by @srt32 [Fixes GH-416]
+	  https://github.com/ruby/ruby/pull/416
+
+Mon Oct  7 20:07:20 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/time.rb (Time.strptime): Use :offset.
+	  Patch by Felipe Contreras.  [ruby-core:57694]
+
+Mon Oct  7 16:47:27 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* test/-ext-/debug/test_profile_frames.rb: rename class C to
+	  something long name because one test depends on absence of
+	  class ::C.
+
+Mon Oct  7 16:33:10 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/-test-/debug/profile_frames.c:
+	  test/-ext-/debug/test_profile_frames.rb: add a test for new C-APIs.
+
+Mon Oct  7 16:12:36 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/debug.h: add backtrace collecting APIs for profiler.
+	  * int rb_profile_frames(int start, int limit, VALUE *buff, int *lines);
+	    Collect information of frame information.
+
+	  * VALUE rb_profile_frame_path(VALUE frame);
+	  * VALUE rb_profile_frame_absolute_path(VALUE frame);
+	  * VALUE rb_profile_frame_label(VALUE frame);
+	  * VALUE rb_profile_frame_base_label(VALUE frame);
+	  * VALUE rb_profile_frame_first_lineno(VALUE frame);
+	  * VALUE rb_profile_frame_classpath(VALUE frame);
+	  * VALUE rb_profile_frame_singleton_method_p(VALUE frame);
+	    Get information about each frame.
+
+	  These APIs are designed for profilers, for example, no object allocation,
+	  and enough information for profilers.
+	  In this version, this API collects only Ruby level frames.
+	  This issue will be fixed after Ruby 2.1.
+
+	* vm_backtrace.c: implement above APIs.
+
+	* iseq.c (rb_iseq_klass): return local_iseq's class.
+
+Mon Oct  7 14:26:01 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* proc.c: catch up last commit.
+	  Type of return value of rb_iseq_first_lineno() is now VALUE.
+
+	* vm_insnhelper.c (argument_error): ditto.
+
+	* vm_method.c (rb_method_entry_make): ditto.
+
+Mon Oct  7 14:07:45 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* iseq.c, internal.h: change to public (but internal) functions
+	  * VALUE rb_iseq_path(VALUE iseqval);
+	  * VALUE rb_iseq_absolute_path(VALUE iseqval);
+	  * VALUE rb_iseq_label(VALUE iseqval);
+	  * VALUE rb_iseq_base_label(VALUE iseqval);
+	  * VALUE rb_iseq_first_lineno(VALUE iseqval);
+	  And new (temporary) function:
+	  * VALUE rb_iseq_klass(VALUE iseqval);
+
+	* iseq.c. vm_core.h (int rb_iseq_first_lineno): remove
+	  function `int rb_iseq_first_lineno(const rb_iseq_t *iseq)'.
+	  Use `VALUE rb_iseq_first_lineno(VALUE iseqval)' instead.
+
+	* proc.c. vm_insnhelper.c, vm_method.c: catch up this change.
+
+Sun Oct  6 08:37:39 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/webrick.rb: [DOC] fix grammar in WEBrick overview [Fixes GH-413]
+	  Based on patch by @chastell https://github.com/ruby/ruby/pull/413
+
+Sat Oct  5 11:21:01 2013  Aaron Pfeifer  <aaron.pfeifer@gmail.com>
+
+	* thread.c (terminate_atfork_i): fix locking mutexes not unlocked in
+	  forks when not tracked in thread.  [ruby-core:55102] [Bug #8433]
+
+Fri Oct  4 19:54:09 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/dbm/dbm.c: [DOC] Fix wrong constant name in DBM by @edward
+	  [Fixes GH-409] https://github.com/ruby/ruby/pull/409
+
+Fri Oct  4 19:49:42 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c: rename heap.free_num as heap.swept_num to clarify meaning and
+	  avoid confusion with objspace_free_num().
+
+Fri Oct  4 19:02:01 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c (objspace_free_num): new method for available/free slots on
+	  heap. [ruby-core:57633] [Bug #8983]
+	* gc.c (gc_stat): change heap_free_num definition to use new method.
+	* test/ruby/test_gc.rb: test for above.
+
+Fri Oct  4 18:53:42 2013  Aman Gupta <ruby@tmm1.net>
+
+	* gc.c: add rb_objspace.limit to keep accurate count of total heap
+	  slots [ruby-core:57633] [Bug #8983]
+
+Fri Oct  4 09:32:33 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/csv.rb (CSV.foreach): support enumerator.  based on a patch by
+	  Hanmac (Hans Mackowiak) at [ruby-core:57643].  [ruby-core:57283]
+	  [Feature #8929]
+
+Thu Oct  3 18:20:47 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (console_emulator_p, constat_handle): disable built-in
+	  console colorizing when console-emulator-like DLL is injected.
+	  [Feature #8201]
+
+Thu Oct  3 18:01:44 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: define gc_profile_record::allocated_size if
+	  CALC_EXACT_MALLOC_SIZE is true.
+
+Thu Oct  3 13:42:51 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (yes-test-sample): use RUNRUBY instead of MINIRUBY to set
+	  runtime library path and run the built ruby.  [Bug #8971]
+
+Thu Oct  3 00:17:15 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-additional.el: Properly quote the body.  An unquoted
+	  body given to eval-after-load is evaluated immediately!
+
+Wed Oct  2 21:38:30 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* ext/socket/ifaddr.c (rsock_getifaddrs): fix possible memory leak.
+	  When a system had no interface, this function used xmalloc for root
+	  but did not return any reference to it.  This patch fixes it by
+	  immediately returning an empty array if no interface is found.
+	  Coverity Scan found this bug.
+
+Wed Oct  2 21:37:04 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* random.c (make_seed_value): a local array declaration was accessed
+	  out of scope.  Coverity Scan found this bug.
+
+Wed Oct  2 18:52:40 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: relax GC condition due to malloc_limit.
+
+	* gc.c (GC_MALLOC_LIMIT_MAX): change default value
+	  (256MB -> 512MB) and permit zero to ignore max value.
+
+	* gc.c (vm_malloc_increase, vm_xrealloc): do not cause GC on realloc.
+
+	* gc.c (gc_before_sweep): change debug messages.
+
+Wed Oct  2 16:26:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_io_close_read): duplex IO should wait its child process
+	  even after close_read.
+
+Wed Oct  2 15:39:13 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vm_core.h: use __has_attribute() instead of __clang__major__ because
+	  clang says "Note that marketing version numbers should not be used
+	  to check for language features, as different vendors use different
+	  numbering schemes. Instead, use the Feature Checking Macros."
+	  http://clang.llvm.org/docs/LanguageExtensions.html
+
+Wed Oct  2 14:19:57 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_io_close_write): detach tied IO for writing before closing
+	  to get rid of race condition.  [ruby-list:49598]
+
+	* io.c (rb_io_close_read): keep fptr in write_io to be discarded, to
+	  fix freed pointer access when it is in use by other threads, and get
+	  rid of potential memory/fd leak.
+
+Tue Oct  1 23:44:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* vm_core.h: use __attribute__((unused)) in UNINITIALIZED_VAR on clang
+	  4.0+ instead of just on 4.2. Clang has supported the unused attribute
+	  since before version 4, so this should be safe.
+
+Tue Oct  1 22:03:48 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/tempfile.rb (Tempfile#unlink): finalizer is no longer needed
+	  after unlinking.  patched by by normalperson (Eric Wong) at
+	  [ruby-core:56521] [Bug #8768]
+
+Tue Oct  1 20:54:33 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (stat_new_0): constify.
+
+	* file.c (rb_stat_new): constify and export.  based on a patch by
+	  Hanmac (Hans Mackowiak) at [ruby-core:53225].  [Feature #8050]
+
+Tue Oct  1 16:03:42 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (ruby_safe_level_4_warning): needed by extension
+	  libraries which check safe level 4.  [ruby-dev:47517] [Bug #8652]
+
+Mon Sep 30 23:14:36 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/objspace/objspace.c: [DOC] Cleaned up many rdoc formatting
+	  issues and several duplicate grammar bugs.
+
+Mon Sep 30 23:01:01 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/objspace/object_tracing.c: [DOC] Adjust rdoc formatting and fix
+	  small grammar typo
+
+Mon Sep 30 17:28:39 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/object_tracing.c: [DOC] add some notes for
+	  ObjectSpace::trace_object_allocations.
+
+Mon Sep 30 16:46:58 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/object_tracing.c: add new 3 methods to control tracing.
+	  * ObjectSpace::trace_object_allocations_start
+	  * ObjectSpace::trace_object_allocations_stop
+	  * ObjectSpace::trace_object_allocations_clear
+	  And some refactoring.
+
+	* test/objspace/test_objspace.rb: add a test for new methods.
+
+	* NEWS: add a description for new methods.
+
+Mon Sep 30 11:18:04 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_gc_disable): do rest_sweep() before disable GC.
+	  This fix may solve a failure of
+	  TestTracepointObj#test_tracks_objspace_events
+	  [test/-ext-/tracepoint/test_tracepoint.rb:43].
+
+Mon Sep 30 10:40:20 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_method.c (rb_undef): raise a NameError if the original method
+	  of a refined method is not defined.
+
+	* vm_insnhelper.c (rb_method_entry_eq): added NULL check to avoid SEGV.
+
+	* test/ruby/test_refinement.rb: related test.
+
+Sun Sep 29 23:45:42 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (rb_id_attrset, intern_str): allow junk attrset ID for
+	  Struct.
+
+	* parse.y (rb_id_attrset): fix inconsistency with literals, allow
+	  ID_ATTRSET and return it itself, but ID_JUNK cannot make ID_ATTRSET.
+	  and raise a NameError instead of rb_bug() for invalid argument.
+
+Sun Sep 29 18:45:05 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm_insnhelper.c (vm_callee_setup_arg_complex, vm_yield_setup_block_args):
+	  clear keyword arguments to prevent GC bug which occurs
+	  while marking VM stack.
+	  [ruby-dev:47729] [Bug #8964]
+
+	* test/ruby/test_keyword.rb: tests for the above.
+
+Sat Sep 28 23:25:56 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* math.c (math_log, math_log2, math_log10): fix for Bignum argument.
+	  numbits should be add only when right shifted.
+
+Sat Sep 28 14:30:29 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/dl/test_base.rb: {libc, libm} detection now handle GNU/Hurd
+	  correctly. Patch by Gabriele Giacone (1o5g4r8o@gmail.com).
+	  [Bug #8937][ruby-core:57311]
+	* test/fiddle/helper.rb: ditto.
+
+Sat Sep 28 00:19:41 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* ext/curses/extconf.rb: check the size of chtype.
+
+	* ext/curses/curses.c (NUM2CH, CH2NUM): use proper macros for
+	  the size of chtype.
+
+	[ruby-core:56090] [Bug #8659]
+
+Fri Sep 27 18:33:23 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: add two GC tuning environment variables.
+	  RUBY_GC_MALLOC_LIMIT_MAX and RUBY_GC_MALLOC_LIMIT_GROWTH_FACTOR.
+	  See r43067 for details.
+
+	* gc.c (rb_gc_set_params): refactoring. And change verbose notation.
+	  Mostly duplicated functions get_envparam_int/double is not cool.
+	  Please rewrite it.
+
+	* test/ruby/test_gc.rb: fix a test for this change.
+
+Fri Sep 27 17:44:41 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (GC_MALLOC_LIMIT): 8,000,000 -> 8 * 1,024 * 1,024.
+
+Fri Sep 27 17:19:39 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_before_sweep): cast to size_t to suppress warnings.
+
+Fri Sep 27 17:07:55 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: add some fine-grained profiling codes to tuning marking phase.
+	  If you enable RGENGC_PRINT_TICK to 1, then profiling results by RDTSC
+	  (on x86/amd64 environment) are printed at last.
+	  Thanks Yoshii-san.
+
+Fri Sep 27 16:32:27 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: simplify threshold of GC caused by malloc_increase.
+	  Now, malloc_limit is increased/decreased by mysterious logic.
+	  This fix simplify malloc_limit increase/decrease logic such as:
+	    if (malloc_increase > malloc_limit) /* so many malloc */
+	      malloc_limit += malloc_limit * (GC_MALLOC_LIMIT_FACTOR-1);
+	    else
+	      malloc_limit -= malloc_limit * (GC_MALLOC_LIMIT_FACTOR-1)/4;
+	  Default value of GC_MALLOC_LIMIT_FACTOR is 1.8.
+	  malloc_limit is bounded by GC_MALLOC_LIMIT_MAX (256MB by default).
+	  This logic runs at gc_before_sweep(). So there are no effect from
+	  caused by lazy sweep. And we can remove malloc_increase2.
+
+	* gc.c (HEAP_MIN_SLOTS, FREE_MIN, HEAP_GROWTH_FACTOR): rename to
+	  GC_HEAP_MIN_SLOTS, GC_FREE_MIN, GC_HEAP_GROWTH_FACTOR respectively.
+	  Check them by `#ifndef' so you can specify these values outside gc.c.
+
+	* gc.c (ruby_gc_params_t): add initial_malloc_limit_factor and
+	  initial_malloc_limit_max.
+
+	* gc.c (vm_malloc_prepare, vm_xrealloc): use vm_malloc_increase to
+	  add and check malloc_increase.
+
+Fri Sep 27 01:05:00 2013  Zachary Scott  <e@zzak.io>
+
+	* re.c: [DOC] arguments of Regexp::union receive #to_regexp [Bug #8205]
+
+Fri Sep 27 00:39:27 2013  Zachary Scott  <e@zzak.io>
+
+	* struct.c: [DOC] grammar of ArgumentError in Struct.new [Bug #8936]
+	  Patch by Prathamesh Sonpatki
+
+Thu Sep 26 22:11:56 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/bigdecimal/bigdecimal.c: [DOC] several fixes by @chastell
+	  This includes fixing the capitalization of Infinity, return value of
+	  example "BigDecimal.new('NaN') == 0.0", and code style in example.
+	  [Fixes GH-398] https://github.com/ruby/ruby/pull/398
+
+Thu Sep 26 22:08:11 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/observer.rb: [DOC] syntax improvement in example by @chastell
+	  [Fixes GH-400] https://github.com/ruby/ruby/pull/400
+
+Thu Sep 26 22:03:15 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/digest/digest.c: [DOC] typo in overview by @chastell
+	  [Fixes GH-399] https://github.com/ruby/ruby/pull/399
+
+Thu Sep 26 22:00:42 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/openssl/ossl.c: [DOC] typo in example by @zoranzaric
+	  [Fixes GH-401] https://github.com/ruby/ruby/pull/401
+
+Thu Sep 26 21:07:49 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-electric.el (ruby-electric-delete-backward-char): Add
+	  support for smartparens-mode.
+
+	* misc/ruby-electric.el (ruby-electric-cua-replace-region-maybe)
+	  (ruby-electric-cua-delete-region-maybe): New functions that
+	  combine `ruby-electric-cua-*-region` with
+	  `ruby-electric-cua-*-region-p`, using a slightly better way to
+	  detect if it is in cua-mode.
+
+Thu Sep 26 16:51:00 2013  Shota Fukumori  <her@sorah.jp>
+
+	* insns.def (opt_regexpmatch2): Check String#=~ hasn't overridden
+	  before calling rb_reg_match().
+
+	* test/ruby/test_string.rb: Test for above.
+
+	* vm.c (vm_init_redefined_flag): Add BOP flag for String#=~
+
+	[ruby-core:57385] [Bug #8953]
+
+Thu Sep 26 16:43:42 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-electric.el: Avoid use of the interactive function
+	  `self-insert-command` which fires `post-self-insert-hook` and
+	  `post-command-hook`, to make the ruby-electric commands work
+	  nicely with those minor modes that make use of them to do
+	  similar input assistance, such as electric-pair-mode,
+	  autopair-mode and smartparens-mode.
+
+Thu Sep 26 16:24:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* insns.def (opt_regexpmatch1): check Regexp#=~ is not defined before
+	  calling rb_reg_match()
+
+	* test/ruby/test_regexp.rb: add test
+
+	* vm.c (ruby_vm_redefined_flag): change type to short[]
+
+	* vm.c (vm_redefinition_check_flag): return REGEXP_REDEFINED_OP_FLAG if
+	  klass == rb_cRegexp
+
+	* vm.c (vm_init_redefined_flag): setup BOP flag for Regexp#=~
+
+	* vm_insnhelper.h: add REGEXP_REDEFINED_OP_FLAG
+
+	[ruby-core:57385] [Bug #8953]
+
+Thu Sep 26 14:46:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (mark_locations_array): disable AddressSanitizer.  based on a
+	  patch by halfie (Ruby Guy) at [ruby-core:57372].
+	  [ruby-core:56155] [Bug #8680]
+
+Wed Sep 25 17:41:29 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* README.EXT, README.EXT.ja: remove description of RARRAY_PTR()
+	  and add a caution of accessing internal data structure directly.
+	  Also add a description of rb_ary_store().
+	  [Bug #8399]
+
+Wed Sep 25 17:12:08 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: rename RARRAY_RAWPTR() to RARRAY_CONST_PTR().
+	  RARRAY_RAWPTR(ary) returns (const VALUE *) type pointer and
+	  usecase of this macro is not acquire raw pointer, but acquire
+	  read-only pointer. So we rename to better name.
+	  RSTRUCT_RAWPTR() is also renamed to RSTRUCT_CONST_PTR()
+	  (I expect that nobody use it).
+
+	* array.c, compile.c, cont.c, enumerator.c, gc.c, proc.c, random.c,
+	  string.c, struct.c, thread.c, vm_eval.c, vm_insnhelper.c:
+	  catch up this change.
+
+Wed Sep 25 16:58:33 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* internal.h (rb_float_value, rb_float_new): move inline functions
+	  from ruby/ruby.h.
+
+	* numeric.c (rb_float_value, rb_float_new): define external functions
+	  for extension libraries.
+
+Wed Sep 25 15:37:02 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* test/rdoc/test_rdoc_generator_darkfish.rb: add a guard for windows.
+
+Wed Sep 25 09:53:11 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Fix CVE-2013-4363.  Miscellaneous minor improvements.
+
+	* test/rubygems:  Tests for the above.
+
+Tue Sep 24 17:38:56 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_inspect): get rid of out-of-bound access.
+
+	* string.c (rb_str_inspect): when a UTF-16/32 string doesn't have a
+	  BOM, inspect as a dummy encoding string.
+
+Tue Sep 24 17:15:10 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enc/encdb.c (ENC_DUMMY_UNICODE): make BOM-encodings dummy.
+
+	* encoding.c (enc_autoload): keep dummy encodings dummy.
+
+Tue Sep 24 16:41:15 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/win32/lib/win32/registry.rb (Win32::Registry#write): data size
+	  is in bytes, not chars.  terminators should be placed automatically.
+
+Tue Sep 24 16:39:36 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/win32/lib/win32/registry.rb (Win32::Registry#each_value): encode
+	  name.
+
+	* ext/win32/lib/win32/registry.rb (Win32::Registry#each_key): ditto.
+
+	* ext/win32/lib/win32/registry.rb (Win32::Registry#export_string):
+	  encode to locale encoding if default internal is not set.
+
+Tue Sep 24 16:35:09 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/win32/lib/win32/registry.rb (Win32::Registry::API#EnumKey):
+	  size of the name is in WCHARs, not in bytes.
+
+Tue Sep 24 14:07:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* gc.c (free_method_cache_entry_i): unused function
+
+	* gc.c (rb_free_mc_table): ditto
+
+	* internal.h (method_cache_entry_t): unused struct
+
+	* vm_method.c (verify_method_cache): remove unused variable
+
+	* vm_method.c (rb_method_entry): ditto
+
+Tue Sep 24 14:01:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* class.c (class_alloc): remove mc_tbl
+
+	* gc.c (obj_free): ditto
+
+	* internal.h (struct rb_classext_struct): ditto
+
+	* method.h (rb_method_entry): remove ent param
+
+	* vm_method.c: restore the global method cache. Per class cache tables
+	  turned out to be far too slow.
+
+	  [ruby-core:57289] [Bug #8930]
+
+Tue Sep 24 12:51:07 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/win32/lib/win32/registry.rb (Win32::Registry::API): need
+	  Constants.
+
+	* ext/win32/lib/win32/registry.rb (Win32::Registry::API#EnumValue):
+	  size of the name is in WCHARs, not in bytes.
+
+Mon Sep 23 22:16:09 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enc/encdb.c, enc/utf_16_32.h (ENC_DUMMY_UNICODE): Unicode with BOM
+	  must be based on big endian variants, so that actual encodings would
+	  work.  [ruby-core:57318] [Bug #8940]
+
+Mon Sep 23 12:11:26 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (env_each_pair): do not call rb_assoc_new() if
+	  it isn't needed.
+
+Mon Sep 23 10:42:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/test_module.rb (TestModule#test_include_toplevel): test
+	  for top level main.include.  based on a part of the patch by
+	  kyrylo at [GH-395].
+
+Mon Sep 23 05:07:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/intern.h (rb_ary_cat): move from internal.h, since it
+	  is described in README.EXT.
+
+Sun Sep 22 20:55:20 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm_insnhelper.c (vm_make_proc_with_iseq): fix bug message.
+	  This is follow up to changes in r42637.
+
+Sun Sep 22 20:35:38 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* ext/-test-/tracepoint/tracepoint.c (Init_tracepoint): prevent from GC.
+
+Sun Sep 22 19:00:28 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* benchmark/bm_app_answer.rb: revert r42990, benchmark scripts should
+	  be self-contained and avoid dependencies, especially such small one.
+	  See https://github.com/ruby/ruby/pull/393#issuecomment-24861301.
+
+Sat Sep 21 20:11:06 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (rb_fork_internal): remove cloexec setting on pipes
+	  created by rb_cloexec_pipe.  patch by normalperson (Eric Wong) at
+	  [ruby-core:56523].  [Bug #8769]
+
+Sat Sep 21 01:04:25 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/benchmark.rb: [DOC] grammar of Benchmark#bm [Bug #8888]
+	  Patch by Prathamesh Sonpatki
+
+Sat Sep 21 00:50:02 2013  Zachary Scott  <e@zzak.io>
+
+	* enumerator.c: [DOC] Enumerator#each arguments documentation [GH-388]
+	  Patch by @kachick  https://github.com/ruby/ruby/pull/388
+
+Sat Sep 21 00:49:16 2013  Zachary Scott  <e@zzak.io>
+
+	* enum.c: [DOC] Enumerable#to_a accepts arguments [GH-388]
+	  Patch by @kachick https://github.com/ruby/ruby/pull/388
+
+Sat Sep 21 00:47:44 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_conv_enc_opts): make sure to scan coderange to get
+	  rid of unnecessary conversion.
+
+Sat Sep 21 00:21:08 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/openssl/lib/openssl/ssl.rb: [DOC] Document OpenSSL::SSLServer
+	  Based on a patch by Rafal Lisowski [Bug #8758]
+
+Fri Sep 20 23:54:03 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/gserver.rb: [DOC] correct gserver.rb license [Bug #8913]
+
+Fri Sep 20 23:48:34 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/psych/yaml/yaml.h: [DOC] merge upstream typo fix by @GreenGeorge
+	  https://github.com/tenderlove/psych/pull/161
+
+Fri Sep 20 23:37:40 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/securerandom.rb: [DOC] SecureRandom.hex length argument
+	  [Fixes GH-394] Patch by @avdi https://github.com/ruby/ruby/pull/394
+
+Fri Sep 20 23:34:48 2013  Zachary Scott  <e@zzak.io>
+
+	* benchmark/bm_app_answer.rb: removed duplicate code [Fixes GH-393]
+	  Patch by @gouravtiwari https://github.com/ruby/ruby/pull/393
+
+Fri Sep 20 23:24:08 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (btest, btest-ruby, test-knownbug): add $(RUN_OPTS) to
+	  ruby to be run, so that tests are runnable before making exts.
+
+	* common.mk (test-sample): ditto, and use $(MINIRUBY) as rubytest.rb
+	  does not need extension libraries.
+
+	* tool/rubytest.rb: pass $(RUN_OPTS) to testing ruby using --run-opt.
+
+Fri Sep 20 15:01:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (intern_str): sigil only names are junk, at least one
+	  identifier character is needed.  [ruby-dev:47723] [Bug #8928]
+
+	* parse.y (rb_enc_symname_type): fix out of bound access.
+
+Fri Sep 20 14:14:32 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/-test-/printf/printf.c (printf_test_call): Fix an end of buffer
+	  argument.
+
+Thu Sep 19 16:59:02 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (lambda): adjust position to the beginning of the block.
+
+Thu Sep 19 16:25:06 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vsnprintf.c (BSD_vfprintf): initialize cp so that size is 0 in the
+	  commented case.  fix an accidental bug at r16716.
+
+Thu Sep 19 14:33:14 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* NEWS: add a news for r42974.
+
+Thu Sep 19 14:12:02 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: make Symbol objects frozen.
+	  [Feature #8906]
+	  I want to freeze this good day, too.
+
+	* test/ruby/test_eval.rb: catch up this change.
+
+	* test/ruby/test_symbol.rb: add a test to check frozen symbols.
+
+Thu Sep 19 09:11:33 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* NEWS:  Update for RDoc 4.1.0.preview.1 and RubyGems 2.2.0.preview.1
+
+Thu Sep 19 08:59:41 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc/markdown/literals_1_9.rb:  Fix trailing whitespace.
+
+	  Previously kpeg (which generates this file) added trailing
+	  whitespace, but this bug is now fixed.
+
+	* lib/rdoc/markdown.rb:  ditto.
+
+Thu Sep 19 08:33:14 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc:  Update to RDoc 4.1.0.preview.1
+
+	  RDoc 4.1.0 contains a number of enhancements including a new default
+	  style and accessibility support.  You can see the changelog here:
+
+	  https://github.com/rdoc/rdoc/blob/v4.1.0.preview.1/History.rdoc
+
+	* test/rdoc:  ditto.
+
+Thu Sep 19 07:16:26 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb: updating Psych version
+
+	* ext/psych/psych.gemspec: ditto
+
+Thu Sep 19 06:39:40 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/dependency_resolver.rb:  Switch the iterative resolver
+	  algorithm from recursive to iterative to avoid possible
+	  SystemStackError.
+
+Thu Sep 19 06:29:30 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems 2.2.0.preview.1
+
+	  This brings several new features to RubyGems summarized here:
+
+	  https://github.com/rubygems/rubygems/blob/v2.2.0.preview.1/History.txt
+
+	* test/rubygems:  ditto.
+
+Wed Sep 18 23:14:58 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* string.c (rb_str_enumerate_lines): make String#each_line and
+	  #lines not raise invalid byte sequence error when it is called
+	  with an argument. The patch also causes performance improvement.
+	  [ruby-dev:47549] [Bug #8698]
+
+	* test/ruby/test_m17n_comb.rb (test_str_each_line): remove
+	  assertions which check that String#each_line and #lines will
+	  raise an error if the receiver includes invalid byte sequence.
+
+Wed Sep 18 16:32:15 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (mnew_from_me): allocate structs after allocated wrapper
+	  object successfully, to get rid of potential memory leak.
+
+Tue Sep 17 15:54:03 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/shell/command-processor.rb (Shell::CommandProcessor#find_system_command):
+	  return executable file only, should ignore directories and
+	  unexecutable files.  [ruby-core:57235] [Bug #8918]
+
+	* lib/test/unit/assertions.rb (Test::Unit::Assertions#assert_throw):
+	  assertion for throw.  MiniTest::Assertions#assert_throws discards
+	  the caught value.
+
+	* lib/test/unit/assertions.rb (Test::Unit::Assertions#assert_nothing_thrown):
+	  returns the result of the given block.
+
+Tue Sep 17 12:55:58 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/regexp.rdoc:  [DOC] Replace paragraphs in verbatim sections with
+	  plain paragraphs to improve readability as ri and HTML.
+
+Mon Sep 16 07:32:35 2013  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* complex.c: removed meaningless lines.
+	* rational.c: ditto.
+
+Mon Sep 16 00:44:23 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* ext/socket/mkconstants.rb: define MSG_FASTOPEN.
+	  [ruby-core:57138] [Feature #8897]
+
+Sun Sep 15 13:31:23 2013  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* rational.c (nurat_div): reverted r28844, r28886 and r28887.
+	  REASON: Nobuyoshi Nakada  <nobu@ruby-lang.org>'s commits are buggy.
+	  So Rational#/ may produce exact number with inexact number.
+	  Moreover, without reducing.
+	  REALLY NONSENSE COMMITS.
+	  A bug report by me [ruby-dev:44710] is also caused by this behavior.
+	  Kenta Murata  <mrkn@mrkn.jp> patched it up.
+	  But he did not fix the origin.
+	  Today, the bug is still alive in ruby 1.9.3 and 2.0.0.
+
+Sat Sep 14 06:08:10 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* dir.c (dir_s_glob):  [DOC] Improve wording and layout.
+
+	* dir.c (file_s_fnmatch):  ditto.
+
+	* dir.c (Init_Dir):  [DOC] Document File::Constants::FNM_XXX
+	  constants.  (These won't show up in RDoc until a new RDoc is
+	  imported.)
+
+Thu Sep 12 14:58:58 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/generic.rb (URI::Generic.find_proxy): return nil if
+	  http_proxy environment variable is empty string.
+	  [ruby-core:57140] [Bug #8898]
+
+Fri Sep 13 10:40:28 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems 2.1.3
+
+	  Fixed installing platform gems
+
+	  Restored concurrent requires
+
+	  Fixed installing gems with extensions with --install-dir
+
+	  Fixed `gem fetch -v` to install the latest version
+
+	  Fixed installing gems with "./" in their files entries
+
+	* test/rubygems/test_gem_package.rb:  Tests for the above.
+
+	* NEWS:  Updated for RubyGems 2.1.3
+
+Thu Sep 12 22:40:03 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (RUBY_CHECK_SIGNEDNESS): macro to check signedness of a
+	  type.
+
+	* configure.in (size_t): must be unsigned.
+	  [ruby-core:57149] [Feature #8890]
+
+Thu Sep 12 22:37:08 2013  Anton Ovchinnikov  <revolver112@gmail.com>
+
+	* ext/bigdecimal/bigdecimal.c, ext/digest/md5/md5.c,
+	  ext/json/fbuffer/fbuffer.h, ext/json/generator/generator.c:
+	  Eliminate less-than-zero checks for unsigned variables.
+	  According to section 4.1.5 of C89 standard, size_t is an unsigned
+	  type.  These checks were found with 'cppcheck' static analysis tool.
+	  [ruby-core:57117] [Feature #8890]
+
+Thu Sep 12 21:35:46 2013  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* Makefile.in (libruby-static.a): change LDFLAGS order. LDFLAGS may
+	  include library path that should be specified before LIBS.
+	  [ruby-dev:47707] [Bug #8901]
+
+Thu Sep 12 20:07:29 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vsnprintf.c (MAXEXP, MAXFRACT): calculate depending on constants in
+	  float.h.
+
+	* vsnprintf.c (BSD_vfprintf): limit length for cvt() to get rid of
+	  buffer overflow.  [ruby-core:57023] [Bug #8864]
+
+	* vsnprintf.c (exponent): make expbuf size more precise.
+
+Wed Sep 11 17:30:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (RUNRUBY): append -- only after runruby.rb, not
+	  cross-compiling baseruby, so that $(RUN_OPT) can be command line
+	  options.  [ruby-dev:47703] [Bug #8893]
+
+Wed Sep 11 07:55:17 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_mutex_unlock): Mutex#unlock no longer raise
+	  an exception even if uses on trap. [Bug #8891]
+
+Tue Sep 10 14:37:01 2013  Shota Fukumori  <sorah@tubusu.net>
+
+	* vm_backtrace.c (vm_backtrace_to_ary): Ignore the second argument if
+	  it is nil. [Bug #8884] [ruby-core:57094]
+
+	* test/ruby/test_backtrace.rb (test_caller_with_nil_length):
+	  Test for above.
+
+Tue Sep 10 12:39:17 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (method_entry_i): should exclude refined methods from
+	  instance method list.  [ruby-core:57080] [Bug #8881]
+
+Tue Sep 10 12:05:04 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* io.c (rb_f_printf): [DOC] add missing parenthesis in rdoc.
+
+Tue Sep 10 10:08:00 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* NEWS: Update RubyGems note.
+
+Tue Sep 10 09:51:22 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems 2.1.0.  Fixes CVE-2013-4287.
+
+	  See http://rubygems.rubyforge.org/rubygems-update/CVE-2013-4287_txt.html
+	  for CVE information.
+
+	  See http://rubygems.rubyforge.org/rubygems-update/History_txt.html#label-2.1.0+%2F+2013-09-09
+	  for release notes.
+
+	* test/rubygems:  Tests for the above.
+
+Mon Sep  9 21:31:45 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c: Remove spaces between SI prefix and unit to follow
+	  SI brochure.
+	  http://www.bipm.org/en/si/si_brochure/
+	  https://www.nmij.jp/library/units/si/
+
+	* time.c: Ditto.
+
+	* ext/socket/ancdata.c: Ditto.
+
+Mon Sep  9 16:55:59 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_method.c (rb_add_refined_method_entry): clear cache in the
+	  refined class since refining a method entry is modifying the class.
+	  [ruby-core:57079] [Bug #8880]
+
+Mon Sep  9 09:14:58 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/rbinstall.rb (Gem::Specification#initialize): default date to
+	  RUBY_RELEASE_DATE.  [ruby-core:57072] [Bug #8878]
+
+	* tool/rbinstall.rb (Gem::Specification#to_ruby): add date.
+
+Sun Sep  8 16:01:54 2013  Tanaka Akira  <akr@fsij.org>
+
+	* rational.c (f_gcd): Relax the condition to use GMP.
+
+Sun Sep  8 13:56:38 2013  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (folevariant_initialize): check type of
+	  element of array.
+
+	* test/win32ole/test_win32ole_variant.rb (test_s_new_ary): ditto.
+
+Sat Sep  7 21:33:10 2013  Tanaka Akira  <akr@fsij.org>
+
+	* math.c (math_log): Test the sign for bignums.
+	  (math_log2): Ditto.
+	  (math_log10): Ditto.
+
+Sat Sep  7 20:25:47 2013  Tanaka Akira  <akr@fsij.org>
+
+	* math.c (math_log): Support bignums bigger than 2**1024.
+	  (math_log2): Ditto.
+	  (math_log10): Ditto.
+
+Sat Sep  7 15:36:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* vm_eval.c (vm_call0): fix prototype, the id parameter should be of
+	  type ID, not VALUE
+
+	* vm_insnhelper.c (check_match): the rb_funcall family of functions
+	  does not care about refinements. We need to use
+	  rb_method_entry_with_refinements instead to call === with
+	  refinements. Thanks to Jon Conley for reporting this bug.
+	  [ruby-core:57051] [Bug #8872]
+
+	* test/ruby/test_refinement.rb: add test
+
+Sat Sep  7 13:49:40 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* variable.c (classname): the name of class that has
+	  non class id should not be nil. This bug was introduced
+	  in r36577.
+
+	* test/thread/test_cv.rb: test for change.
+
+Sat Sep  7 13:29:22 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* lib/find.rb (Find.find): respect the encodings of arguments.
+	  [ruby-dev:47530] [Feature #8657]
+
+	* test/test_find.rb: add tests.
+
+Sat Sep  7 10:40:32 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/mkconstants.rb (TCP_FASTOPEN): Defined for TCP fast open.
+	  [ruby-core:57048] [Feature #8871] patch by Masaki Matsushita.
+
+Fri Sep  6 23:53:31 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* common.mk: use RUNRUBY instead of MINIRUBY because MINIRUBY can't
+	  require extension libraries. The patch is from nobu
+	  (Nobuyoshi Nakada).
+
+	* ext/thread/extconf.rb: for build ext/thread/thread.c.
+
+	* include/ruby/intern.h: ditto.
+
+	* thread.c: ditto.
+
+	* lib/thread.rb: removed and replaced by ext/thread/thread.c.
+
+	* ext/thread/thread.c: Queue, SizedQueue and ConditionVariable
+	  implementations in C. This patch is based on patches from panaggio
+	  (Ricardo Panaggio) and funny_falcon (Yura Sokolov) and  ko1
+	  (Koichi Sasada). [ruby-core:31513] [Feature #3620]
+
+	* test/thread/test_queue.rb (test_queue_thread_raise): add a test for
+	  ensuring that killed thread should be removed from waiting threads.
+	  It is based on a code by ko1 (Koichi Sasada). [ruby-core:45950]
+
+Fri Sep  6 22:47:12 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Define ac_cv_func_clock_getres to yes for mingw*.
+
+Fri Sep  6 21:04:10 2013  Tanaka Akira  <akr@fsij.org>
+
+	* rational.c: Include gmp.h if GMP is used.
+	  (GMP_GCD_DIGITS): New macro.
+	  (rb_gcd_gmp): New function.
+	  (f_gcd_normal): Renamed from f_gcd.
+	  (rb_gcd_normal): New function.
+	  (f_gcd): Invoke rb_gcd_gmp or f_gcd_normal.
+
+	* internal.h (rb_gcd_normal): Declared.
+	  (rb_gcd_gmp): Ditto.
+
+	* ext/-test-/rational: New directory.
+
+	* test/-ext-/rational: New directory.
+
+Fri Sep  6 14:23:22 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (clock_getres): required as well as clock_gettime().
+	  [ruby-dev:47699] [Bug #8869]
+
+Fri Sep  6 11:45:27 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* transcode.c (rb_econv_append): new function to append a string data
+	  with converting its encoding.  split from rb_econv_substr_append.
+
+Fri Sep  6 02:37:22 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: use double quotes when
+	  strings start with special characters.
+	  https://github.com/tenderlove/psych/issues/157
+
+	* test/psych/test_string.rb: test for change.
+
+Fri Sep  6 00:05:14 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (rewrite_cref_stack): remove recursion.
+
+Thu Sep  5 18:05:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* string.c (fstring_cmp): take string encoding into account when
+	  comparing fstrings [ruby-core:57037] [Bug #8866]
+
+	* test/ruby/test_string.rb: add test
+
+Thu Sep  5 17:25:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_fstring, rb_str_free): use st_data_t instead of VALUE.
+
+	* string.c (rb_fstring): get rid of duplicating already frozen object.
+
+Thu Sep  5 14:01:22 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/optparse.rb:  The Integer acceptable now allows binary and
+	  hexadecimal numbers per the documentation.  [ruby-trunk - Bug #8865]
+
+	  DecimalInteger, OctalInteger, DecimalNumeric now validate their input
+	  before converting to a number.  [ruby-trunk - Bug #8865]
+
+	* test/optparse/test_acceptable.rb:  Tests for the above, tests for all
+	  numeric acceptables for existing behavior.
+
+Thu Sep  5 13:49:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* include/ruby/ruby.h: add RSTRING_FSTR flag
+
+	* internal.h: add rb_fstring() prototype
+
+	* string.c (rb_fstring): deduplicate frozen string literals
+
+	* string.c (rb_str_free): delete fstrings from frozen_strings table when
+	  they are GC'd
+
+	* string.c (Init_String): initialize frozen_strings table
+
+Thu Sep  5 12:48:00 2013  Kenta Murata  <mrkn@cookpad.com>
+
+	* configure.in (with_gmp): set with_gmp no if it is empty.
+
+Thu Sep  5 10:41:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_getivar): use class sequence to check class
+	  identity, instead of pointer + vm state
+
+	* vm_insnhelper.c (vm_setivar): ditto
+
+Thu Sep  5 08:20:58 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (GMP_DIV_DIGITS): New macro.
+	  (bary_divmod_gmp): New function.
+	  (rb_big_divrem_gmp): Ditto.
+	  (bary_divmod_branch): Ditto.
+	  (bary_divmod): Use bary_divmod_branch.
+	  (bigdivrem): Ditto.
+
+	* internal.h (rb_big_divrem_gmp): Declared.
+
+Thu Sep  5 06:22:42 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_divmod_normal): Reduce temporary array allocations.
+
+Thu Sep  5 02:17:06 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big_divrem_normal): Add GC guards.
+
+Thu Sep  5 00:38:32 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big_divrem_normal): New function.
+
+	* internal.h (rb_big_divrem_normal): Declared.
+
+	* ext/-test-/bignum/div.c: New file.
+
+	* test/-ext-/bignum/test_div.rb: New file.
+
+Thu Sep  5 00:08:44 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigdivrem_normal): Removed.
+	  (bary_divmod_normal): New function.
+	  (bary_divmod): Use bary_divmod_normal.
+	  (bigdivrem): Use bary_divmod_normal.
+
+Wed Sep  4 23:02:12 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigdivrem): Useless declaration removed.
+
+Wed Sep  4 22:56:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* numeric.c (NUM_STEP_GET_INF): split from NUM_STEP_SCAN_ARGS(), since
+	  inf is not used in num_step_size().
+
+Wed Sep  4 20:22:43 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigdivrem_normal): Add assertions.
+
+Wed Sep  4 19:18:40 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* internal.h (vm_state_version_t): prefer LONG_LONG to uint64_t.
+
+Wed Sep  4 16:28:14 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* internal.h (vm_state_version_t): use uint64_t when it is larger than
+	  LONG_LONG, and fallback to unsigned long.
+
+Wed Sep  4 15:37:05 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* enc/trans/utf8_mac-tbl.rb: fix r42789.
+	  Fix conversion table and logic. [ruby-dev:47680]
+
+Wed Sep  4 14:08:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* class.c, compile.c, eval.c, gc.h, insns.def, internal.h, method.h,
+	  variable.c, vm.c, vm_core.c, vm_insnhelper.c, vm_insnhelper.h,
+	  vm_method.c: Implement class hierarchy method cache invalidation.
+
+	  [ruby-core:55053] [Feature #8426] [GH-387]
+
+Wed Sep  4 11:13:40 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (str_gsub): use BEG(0) for whole matched position not
+	  return value from rb_reg_search(), for \K matching.
+	  [ruby-dev:47694] [Bug #8856]
+
+Wed Sep  4 11:11:37 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (SOLIBS): LIBRUBY_SO also needs linking with gmp, to
+	  run worker processes in test-all on non-ELF platforms.
+
+Tue Sep  3 23:01:41 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/parser/test_tree.rb
+	  (TestTreeParser::TestInvalid#test_unmatched_close_tag):
+	  Compute expected value from test value.
+
+Tue Sep  3 22:59:58 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/treeparser.rb (REXML::Parsers::TreeParser#parse):
+	  Add source information to parse exception on no close tag error.
+	  [Bug #8844]  [ruby-dev:47672]
+	  Patch by Ippei Obayashi. Thanks!!!
+	* test/rexml/parser/test_tree.rb: Add a test for the above case.
+
+Tue Sep  3 22:57:57 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/parser/test_tree.rb: Fix test name to describe test
+	  content.
+
+Tue Sep  3 22:54:46 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/treeparser.rb (REXML::Parsers::TreeParser#parse):
+	  Remove needless nested parse exception information.
+	  [Bug #8844]  [ruby-dev:47672]
+	  Reported by Ippei Obayashi. Thanks!!!
+	* test/rexml/parser/test_tree.rb: Add a test for the above case.
+
+Tue Sep  3 22:03:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_enc_str_new_cstr): new function to create a string from
+	  the C-string pointer with the specified encoding.
+
+Tue Sep  3 21:41:37 2013  Akira Matsuda  <ronnie@dio.jp>
+
+	* eval.c (Init_eval): Make Module#include and Module#prepend public
+	  [Feature #8846]
+
+	* test/ruby/test_module.rb (class TestModule): Test for above
+
+Tue Sep  3 21:35:19 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread_pthread.c (sys/dyntune.h): for gettune().
+
+	* thread_pthread.c (hpux_attr_getstackaddr): fix missing *.
+	  [ruby-core:56983] [Feature #8793]
+
+Tue Sep  3 20:12:46 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (GMP_STR2BIG_DIGITS): New macro.
+	  (str2big_gmp): New function.
+	  (rb_cstr_to_inum): Use str2big_gmp for big bignums.
+	  (rb_str2big_gmp): New function.
+
+	* internal.h (rb_str2big_gmp): Declared.
+
+Tue Sep  3 19:44:40 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/win32/lib/win32/registry.rb (Win32::Registry#values): added.
+	  [Feature #7763] [ruby-core:51783]
+
+Tue Sep  3 18:26:00 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/inf-ruby.el (inf-ruby-keys, run-ruby): Add magic autoload
+	  comments.
+
+	* misc/rdoc-mode.el (rdoc-mode): Ditto.
+
+	* misc/ruby-electric.el (ruby-electric-mode): Ditto.
+
+	* misc/ruby-style.el (ruby-style-c-mode): Ditto.
+
+Tue Sep  3 17:06:15 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_rubyoptions.rb
+	  (TestRubyOptions::SEGVTest::ExpectedStderr): the URL was changed at
+	  r42800.
+
+Tue Sep  3 14:48:25 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/thread.rb: [DOC] CV#wait typo by @avdi [Fixes GH-386]
+	  https://github.com/ruby/ruby/pull/386
+
+Tue Sep  3 14:37:53 2013  Zachary Scott  <e@zzak.io>
+
+	* error.c: [DOC] Update bug tracker url by @ScotterC [Fixes GH-390]
+	  https://github.com/ruby/ruby/pull/390
+
+Tue Sep  3 12:45:23 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_str2big_poweroftwo): New function.
+	  (rb_str2big_normal): Ditto.
+	  (rb_str2big_karatsuba): Ditto.
+
+	* internal.h (rb_str2big_poweroftwo): Declared.
+	  (rb_str2big_normal): Ditto.
+	  (rb_str2big_karatsuba): Ditto.
+
+	* ext/-test-/bignum/str2big.c: New file.
+
+	* test/-ext-/bignum/test_str2big.rb: New file.
+
+	* ext/-test-/bignum/depend: Add the dependency for str2big.c.
+
+Tue Sep  3 12:09:08 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_clock_gettime): Support times() based monotonic clock.
+	  (rb_clock_getres): Ditto.
+
+Tue Sep  3 12:03:02 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (str2big_scan_digits): Extracted from rb_cstr_to_inum.
+
+Tue Sep  3 11:23:57 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_select_with_thread): rounding up the fraction of
+	  tv_usec instead of rounding down.
+	  this change is an experiment to get rid of failures on vc10-x64 CI.
+
+Tue Sep  3 11:00:28 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (do_select): constify timeout.
+
+	* win32/win32.c (rb_w32_select_with_thread): constify 10ms wait and
+	  0ms wait structs.
+
+Tue Sep  3 10:03:42 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/openssl/test_pair.rb
+	  (OpenSSL::TestPair#test_write_nonblock_no_exceptions): on some CIs
+	  such as Debian 6.0, Ubuntu 10.04, CentOS and vc10-x64 (maybe depend
+	  on OpenSSL version), writing to SSLSocket after SSL_ERROR_WANT_WRITE
+	  causes SSL_ERROR_SSL "bad write retry".
+
+Tue Sep  3 08:20:46 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* enc/trans/utf8_mac-tbl.rb: update conversion table to recent OS X.
+	  Previous table is used on Mac OS X 10.1 or prior.
+	  This table is used on 10.2 or later. [ruby-dev:47680]
+
+Tue Sep  3 07:49:25 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* numeric.c (NUM_STEP_SCAN_ARGS): On second thought, keep
+	  Numeric#step backward compatible in that it raises TypeError
+	  when nil is given as second argument.
+
+	* test/ruby/test_float.rb (TestFloat#test_num2dbl): Revert.
+
+	* test/ruby/test_numeric.rb (TestNumeric#test_step): Fix test
+	  cases for the above change.
+
+Tue Sep  3 07:39:58 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bytes_2comp): Define it only for little endian
+	  environment.
+
+Tue Sep  3 07:31:29 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* numeric.c (NUM_STEP_SCAN_ARGS): Numeric#step should raise
+	  TypeError if a non-numeric parameter is given.
+
+	* test/ruby/test_float.rb (TestFloat#test_num2dbl): Allow nil as
+	  step, as with the keyword argument.
+
+	* test/ruby/test_numeric.rb (TestNumeric#test_step): Add tests for
+	  nil as step or limit.
+
+Tue Sep  3 07:28:49 2013  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (bit_length): Add casts to fix compilation error with
+	  clang 3.0 -Werror,-Wshorten-64-to-32.
+	  [ruby-dev:47687] reported by SASADA Koichi.
+
+Tue Sep  3 03:17:26 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (vm_search_super_method): use ci->argc instead of
+	  ci->orig_argc. ci->argc can be changed by splat arguments.
+	  [ruby-list:49575]
+	  This fix should be applied to Ruby 2.0.0 series.
+
+	* test/ruby/test_super.rb: add a test for above.
+
+Mon Sep  2 23:46:29 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* numeric.c (num_step): Default the limit argument to infinity and
+	  allow it to be omitted.  Keyword arguments (by: and to:) are
+	  introduced for ease of use. [Feature #8838] [ruby-dev:47662]
+	  [ruby-dev:42194]
+
+	* numeric.c (num_step): Optimize for infinite loop.
+
+Mon Sep  2 22:55:59 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (ISDIGIT): Unused macro removed.
+
+Mon Sep  2 22:49:15 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (str2big_poweroftwo): Extracted from rb_cstr_to_inum.
+	  (str2big_normal): Ditto.
+	  (str2big_karatsuba): Ditto.
+
+Mon Sep  2 14:39:29 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* ruby.c (Process#setproctitle): [DOC] Fix and improve rdoc.
+
+	* ruby.c (Process#argv0): [DOC] Improve rdoc.
+
+Mon Sep  2 14:15:00 2013  Kenta Murata  <mrkn@cookpad.com>
+
+	* NEWS: fix description of number literal suffixes.
+
+Mon Sep  2 14:01:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* test/rake/test_rake_rules.rb: add space after string literal to
+	  prevent conflict with string options syntax "foo"opts
+
+	* test/rss/rss-assertions.rb: ditto
+
+Mon Sep  2 12:28:38 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_bignum.rb (test_interrupt_during_to_s): Disable it
+	  when GMP is used.
+
+Mon Sep  2 07:02:10 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (Init_Bignum): Define Bignum::GMP_VERSION when GMP is used.
+
+Mon Sep  2 01:46:14 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2str_generic): Reduce arguments.
+	  (big2str_gmp): Ditto.
+	  (rb_big2str1): Follow the above change.
+
+Mon Sep  2 00:08:08 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (get_mach_timebase_info): Extracted from rb_clock_gettime.
+	  (rb_clock_gettime): Use get_mach_timebase_info.
+	  (rb_clock_getres): Support MACH_ABSOLUTE_TIME_BASED_CLOCK_MONOTONIC.
+
+Sun Sep  1 23:30:47 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (GMP_BIG2STR_DIGITS): New constant.
+	  (big2str_gmp): New function.
+	  (rb_big2str1): Use big2str_gmp for big bignums.
+
+	* internal.h (rb_big2str_gmp): Declared.
+
+	* ext/-test-/bignum/big2str.c (big2str_gmp): New method.
+
+Sun Sep  1 22:37:51 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mul_gmp): Use mpz_init and mpz_clear instead of
+	  mpz_inits and mpz_clears.
+	  Older GMP don't have them.
+
+Sun Sep  1 21:17:54 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/net/http/test_http.rb (test_bind_to_local_port): Choose an open
+	  port more reliably.
+
+Sun Sep  1 20:32:40 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2str_base_poweroftwo): Renamed from
+	  big2str_base_powerof2.
+	  (rb_big2str_poweroftwo): New function for test.
+	  (big2str_generic): Extracted from rb_big2str1.
+	  (rb_big2str_generic): New function for test.
+
+	* internal.h (rb_big2str_poweroftwo): Declared.
+	  (rb_big2str_generic): Ditto.
+
+	* ext/-test-/bignum/big2str.c: New file.
+
+	* test/-ext-/bignum/test_big2str.rb: New file.
+
+Sun Sep  1 15:21:21 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2str_2bdigits): Renamed from big2str_orig.
+
+Sun Sep  1 13:02:24 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c: Remove BITSPERDIG >= INT_MAX test.  The static assertion,
+	  SIZEOF_BDIGITS <= sizeof(BDIGIT) is enough.
+
+Sun Sep  1 11:38:26 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (maxpow_in_bdigit): Removed.
+
+Sun Sep  1 10:30:42 2013  Tanaka Akira  <akr@fsij.org>
+
+	* numeric.c (rb_fix_bit_length): Moved from bignum.c.
+
+Sun Sep  1 09:55:45 2013  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (bit_length): Moved from bignum.c.
+	  (nlz_int): Ditto.
+	  (nlz_long): Ditto.
+	  (nlz_long_long): Ditto.
+	  (nlz_int128): Ditto.
+
+Sun Sep  1 03:32:22 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bit_length): Renamed from bitsize.
+
+Sun Sep  1 00:07:09 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big_bit_length): New method.
+	  (rb_fix_bit_length): Ditto.
+	  [ruby-core:56247] [Feature #8700]
+
+Sat Aug 31 22:18:29 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_clock_getres): New method.
+	  (timetick2dblnum_reciprocal): New function.
+
+	* configure.in: Check clock_getres.
+
+	[ruby-core:56780] [Feature #8809] accepted as a CRuby feature at
+	DevelopersMeeting20130831Japan
+	https://bugs.ruby-lang.org/projects/ruby/wiki/DevelopersMeeting20130831Japan
+
+Sat Aug 31 21:02:07 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c: Use GMP to accelerate big Bignum multiplication.
+	  (bary_mul_gmp): New function.
+	  (bary_mul): Use bary_mul_gmp.
+	  (bigsq): Use different threshold with GMP.
+
+	* configure.in: Detect GMP.
+
+	[ruby-core:56658] [Feature #8796]
+
+Sat Aug 31 15:03:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* compile.c (NODE_MATCH3): pass CALL_INFO to opt_regexpmatch2
+
+	* insns.def (opt_regexpmatch2): use CALL_SIMPLE_METHOD to call =~ if
+	  the receiver is not a T_STRING [Bug #8847] [ruby-core:56916]
+
+Sat Aug 31 14:07:11 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/securerandom.rb (random_bytes): Use Process.clock_gettime.
+
+Sat Aug 31 00:25:15 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/encoding.h (rb_{ascii8bit,utf8,usascii}_encindex): get
+	  rid of conflict with macros defined in internal.h.
+
+Fri Aug 30 22:37:57 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread_pthread.c (native_thread_init_stack): wait the creator thread
+	  to fill machine stack info, if get_stack_of() is available.
+
+	* thread_pthread.c (native_thread_create): fill the created thread
+	  stack info after starting, if get_stack_of() is available.
+
+	* thread_pthread.c (native_thread_create): define attr only if it is
+	  used, and merge pthread_create() calls.
+
+	* thread_pthread.c (get_main_stack): separate function to get stack of
+	  main thread.
+
+Thu Aug 29 18:05:33 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* struct.c (rb_struct_define_without_accessor_under): added.
+	  This function is similar to rb_define_class_under() against
+	  rb_define_class().
+
+	* include/ruby/intern.h: add a declaration of this function.
+
+Thu Aug 29 17:03:10 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_call_method): a method entry refers the based
+	  class/module, so should search superclass from the origin i-class
+	  where the entry belongs to, to get rid of infinite loop when zsuper
+	  in a prepended class/module.  [ruby-core:54105] [Bug #8238]
+
+Thu Aug 29 05:35:58 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/zlib/zlib.c (zstream_run):  Fix handling of deflate streams that
+	  need a dictionary but are being decompressed by Zlib::Inflate.inflate
+	  (which has no option to set a dictionary).  Now Zlib::NeedDict is
+	  raised instead of crashing.  [ruby-trunk - Bug #8829]
+	* test/zlib/test_zlib.rb (TestZlibInflate):  Test for the above.
+
+Thu Aug 29 02:40:45 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/scalar_scanner.rb: invalid floats should be
+	  treated as strings.
+	  https://github.com/tenderlove/psych/issues/156
+
+	* test/psych/test_string.rb: test for change
+
+Wed Aug 28 17:20:07 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread_pthread.c (hpux_attr_getstackaddr): basic support for the
+	  get_stack() under HP-UX.  based on the patch by michal@rokos.cz
+	  (Michal Rokos) at [ruby-core:56645].  [Feature #8793]
+
+Wed Aug 28 11:24:20 2013  Michal Rokos  <michal@rokos.cz>
+
+	* configure.in (sys/pstat.h): fix missing header check for
+	  missing/setproctitle.c on HP-UX.  [ruby-core:56644] [Bug #8792]
+
+Wed Aug 28 04:54:33 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/openssl/ossl_ssl.c (ossl_ssl_read):  Replace duplicate
+	  wait_writable with wait_readable.
+
+Tue Aug 27 17:18:40 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/timeout.rb (Timeout#timeout): skip rescue clause only when no
+	  exception class is given.
+
+Tue Aug 27 17:02:58 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (copy_stream_body): should write in binary mode.  based on a
+	  patch by godfat (Lin Jen-Shin) at [ruby-core:56556].
+	  [ruby-core:56518] [Bug #8767]
+
+Tue Aug 27 17:02:33 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (copy_stream_body): move common open flags.
+
+Tue Aug 27 16:56:50 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enumerator.c (enumerator_size): use rb_check_funcall() instead of
+	  respond_to? and call.
+
+	* enumerator.c (enumerator_each): ensure that argument array size
+	  does not overflow at appending.
+
+Tue Aug 27 16:46:05 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_index, rb_ary_rindex): use optimized equality to
+	  improve performance.  [Feature #8820]
+
+	* vm_insnhelper.c (rb_equal_opt): optimized equality function.
+
+Tue Aug 27 16:11:05 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (opt_eq_func): use RBASIC_CLASS() instead of HEAP_CLASS_OF().
+
+	* insns.def (opt_plus, opt_minus, opt_mult, opt_div, opt_mod, opt_lt),
+	  (opt_gt, opt_ltlt, opt_aref, opt_aset, opt_length, opt_size),
+	  (opt_empty_p, opt_succ): ditto.
+
+Tue Aug 27 16:08:26 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (rb_check_funcall, rb_check_funcall_with_hook): constify
+	  argv.
+
+Tue Aug 27 13:03:33 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/stringio/stringio.c (strio_read_nonblock): declare local
+	  variables at the first of function.
+
+Tue Aug 27 11:51:37 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* enumerator.c: Allow Enumerator size argument to be any callable.
+	  Patch by Avdi Grimm. [bug #8641] [ruby-core:56032] [fix GH-362]
+
+	* test/ruby/test_enumerator.rb: Test for above
+
+Tue Aug 27 11:46:31 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_profile_clear): do rest_sweep() before clearing
+	  profile.current_record.
+
+Tue Aug 27 07:35:05 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* io.c (io_read_nonblock): support non-blocking reads without raising
+	  exceptions. As in: `io.read_nonblock(size, exception: false)`
+	  [ruby-core:38666] [Feature #5138]
+	* ext/openssl/ossl_ssl.c (ossl_ssl_read_internal): ditto
+	* ext/stringio/stringio.c (strio_sysread): ditto
+	* io.c (rb_io_write_nonblock): support non-blocking writes without
+	  raising an exception.
+	* ext/openssl/ossl_ssl.c (ossl_ssl_write_internal): ditto
+	* test/openssl/test_pair.rb (class OpenSSL): tests
+	* test/ruby/test_io.rb (class TestIO): ditto
+	* test/socket/test_nonblock.rb (class TestSocketNonblock): ditto
+	* test/stringio/test_stringio.rb (class TestStringIO): ditto
+
+Tue Aug 27 05:24:34 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Import RubyGems 2.1.0 Release Candidate
+	* test/rubygems:  ditto.
+
+Mon Aug 26 16:24:58 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_nextc): warn carriage return in middle of line.
+	  [ruby-core:56240] [Feature #8699]
+
+Mon Aug 26 15:27:39 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/timeout.rb (Timeout#timeout): should not be caught by rescue
+	  clause.  [Bug #8730]
+
+Mon Aug 26 14:44:26 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (rb_ary_splice): use RARRAY_PTR_USE() without WB because
+	  there are not new relations.
+
+	* enum.c (enum_sort_by): ditto.
+
+	* struct.c (setup_struct): use RARRAY_RAWPTR().
+
+	* vm_eval.c (yield_under): ditto.
+
+	* ext/pathname/pathname.c (path_entries): use RARRAY_AREF().
+
+	* ext/pathname/pathname.c (path_s_glob): ditto.
+
+Mon Aug 26 13:11:10 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* array.c (ary_ensure_room_for_push): fix typo in r42658.
+
+Mon Aug 26 12:37:10 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* template/sizes.c.tmpl: generate automatically by extracting
+	  RUBY_CHECK_SIZEOF from configure.in.
+
+Mon Aug 26 10:16:59 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* process.c (gcd_timetick_int): Renamed from gcd_timtick_int.
+
+Sun Aug 25 21:02:15 2013  Tanaka Akira  <akr@fsij.org>
+
+	* sizes.c (Init_sizes): Define the size of clock_t.
+
+Sun Aug 25 01:47:47 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (BARY_SHORT_MUL): Renamed from BARY_MUL1.
+	  (bary_short_mul): Renamed from bary_mul1.
+
+Sat Aug 24 10:35:09 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_clock_gettime): The emulated clock names changed.
+
+Fri Aug 23 22:22:07 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_clock_gettime): Add a cast to fix compile error by
+	  -Werror,-Wshorten-64-to-32.
+
+Fri Aug 23 22:12:13 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (rb_intern): no symbol cache while initialization.
+
+Fri Aug 23 22:07:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (clock_t): needs time.h.
+
+Fri Aug 23 21:37:28 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (reduce_factors): New function.
+	  (timetick2dblnum): Use reduce_factors.
+	  (timetick2integer): Ditto.
+	  (make_clock_result): Follow the above change.
+	  (rb_clock_gettime): Ditto.
+
+Fri Aug 23 21:00:55 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (timetick_int_t): Renamed from timetick_giga_count_t.
+	  (gcd_timtick_int): Renamed from gcd_ul and make the arguments
+	  timetick_giga_count_t.
+	  (reduce_fraction): Make the arguments timetick_int_t.
+	  (timetick2integer): Ditto.
+	  (make_clock_result): Ditto.
+	  (timetick2dblnum): Fix the return type.
+	  (rb_clock_gettime): Use timetick_int_t.
+
+Fri Aug 23 20:50:40 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (gcd_ul): New function.
+	  (reduce_fraction): Ditto.
+	  (reduce_fraction): Ditto.
+	  (timetick2dblnum): Ditto.
+	  (timetick2integer): Ditto.
+	  (make_clock_result): Use timetick2dblnum and timetick2integer.
+	  (rb_clock_gettime): Follow the make_clock_result change.
+
+Fri Aug 23 18:39:04 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (ary_make_shared): shared ary as shady. Need more effort to
+	  make it normal object.
+
+	* array.c (rb_ary_modify): use RARRAY_PTR_USE() without WB because
+	  there are not new relations.
+
+	* array.c (ary_ensure_room_for_unshift): use RARRAY_RAWPTR() because
+	  there are not new relations.
+
+Fri Aug 23 11:25:57 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c: introduce ARY_SHARED_OCCUPIED(shared).
+
+Fri Aug 23 11:07:08 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/Makefile.sub (config.h): now SIZEOF_CLOCK_T is needed for
+	  unsigned_clock_t.
+
+Thu Aug 22 22:01:04 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_clock_gettime): Strip "s" from unit names.
+
+Thu Aug 22 20:14:59 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (unsigned_clock_t): Defined.
+	  (rb_clock_gettime): Consider clock_t overflow for
+	  ISO_C_CLOCK_BASED_CLOCK_PROCESS_CPUTIME_ID.
+
+	* configure.in: Check the size of clock_t.
+
+Thu Aug 22 16:22:48 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (build_postexe_iseq): fix to setup the local table.
+
+Thu Aug 22 15:42:43 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (rb_iseq_compile_node): accept NODE_IFUNC to support
+	  custom compilation.
+
+	* compile.c (NODE_POSTEXE): compile to
+	  "ONCE{ VMFrozenCore::core#set_postexe{...} }" with a new custom
+	  compiler `build_postexe_iseq()'.
+
+	* vm.c (m_core_set_postexe): remove parameters (passed by a block).
+
+Thu Aug 22 06:54:15 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_clock_gettime): Change emulation symbols for
+	  Process.clock_gettime.
+
+Thu Aug 22 06:24:54 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (make_clock_result): Extracted from rb_clock_gettime.
+
+Wed Aug 21 22:30:51 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_clock_gettime): clock() based CLOCK_PROCESS_CPUTIME_ID
+	  emulation implemented.
+
+Wed Aug 21 21:02:37 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_proc_times): Use RB_GC_GUARD to guard objects from GC.
+
+Wed Aug 21 20:33:01 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (get_clk_tck): Extracted from rb_proc_times.
+	  (rb_clock_gettime): times() based CLOCK_PROCESS_CPUTIME_ID emulation
+	  is implemented.
+
+Wed Aug 21 19:31:48 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c: POSIX_GETTIMEOFDAY_CLOCK_REALTIME is renamed to
+	  SUS_GETTIMEOFDAY_CLOCK_REALTIME.
+
+Wed Aug 21 19:17:46 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_clock_gettime): CLOCK_PROCESS_CPUTIME_ID emulation
+	  using getrusage is implemented.
+
+Wed Aug 21 17:34:27 2013  Tanaka Akira  <akr@fsij.org>
+
+	* gc.c (getrusage_time): Fallback clock_gettime to getrusage when
+	  clock_gettime fails.
+	  Reported by Eric Saxby.  [ruby-core:56762] [Bug #8805]
+
+Wed Aug 21 02:32:32 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* insns.def: fix regexp's once option behavior.
+	  fix [ruby-trunk - Bug #6701]
+
+	* insns.def: remove `onceinlinecache' and introduce `once' instruction.
+	  `once' doesn't use `setinlinecache' insn any more.
+
+	* vm_core.h: `union iseq_inline_storage_entry' to store once data.
+
+	* compile.c: catch up above changes.
+
+	* iseq.c: ditto.
+
+	* vm.c, vm_insnhelper.c: ditto. fix `m_core_set_postexe()' which
+	  is depend on `onceinlinecache' insn.
+
+	* test/ruby/test_regexp.rb: add tests.
+
+	* iseq.c: ISEQ_MINOR_VERSION to 1 (should increment major?)
+
+Wed Aug 21 02:30:15 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_gcdebug_print_obj_condition): add printing information.
+
+Tue Aug 20 13:38:00 2013  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* test/gdbm/test_gdbm.rb: skip TestGDBM#test_s_open_lock on Solaris.
+	  On Solaris (and platforms which do not have flock and have lockf),
+	  with GDBM 1.10, gdbm_open(3) blocks when opening already locked
+	  gdbm file. [Bug #8790] [ruby-dev:47631]
+
+Tue Aug 20 02:32:52 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/test/: [DOC] Document Test::Unit, hide most submodules and
+	  classes from rdoc. Since lib/test is only present as a compatibility
+	  layer with the legacy test suite many test/unit users will be using
+	  minitest or the test/unit gem instead. It is recommended to use one
+	  of these alternatives for writing new tests.
+
+	  This patch was based on a patch submitted by Steve Klabnik.
+	  [ruby-core:56694] [Bug #8778]
+
+Tue Aug 20 02:10:19 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/rss/rss.rb: [DOC] Document for constants by Steve Klabnik
+	  [ruby-core:56705] [Bug #8798]
+
+Tue Aug 20 02:01:10 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/rss/xmlparser.rb: [DOC] Hide legacy constant from rdoc
+	  Patch by Steve Klabnik [ruby-core:56708] [Bug #8799]
+
+Tue Aug 20 01:52:05 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/socket/unixserver.c: [DOC] Document #accept
+	* ext/socket/tcpserver.c: ditto
+	* ext/socket/udpsocket.c: [DOC] Fix indentation of documentation
+	* ext/socket/socket.c: ditto
+	  Patches by David Rodr'iguez [ruby-core:56734] [Bug #8802]
+
+Tue Aug 20 01:19:22 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Define ac_cv_func_clock_gettime to yes for mingw*.
+
+Mon Aug 19 21:31:35 2013  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/defines.h: Fix a compilation error with
+	  i586-mingw32msvc-gcc of gcc-mingw32 package on Debian squeeze.
+	  ruby/missing.h should be included before include/ruby/win32.h
+	  because struct timespec, used in the clock_gettime declaration in
+	  include/ruby/win32.h, is defined in ruby/missing.h instead of
+	  system headers.
+
+Mon Aug 19 20:55:12 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: fix around GC_DEBUG.
+
+	* gc.c (RVALUE::line): should be VALUE. On some environment
+	  (such as mswin64), `int' introduces alignment mismatch.
+
+	* gc.c (newobj_of): add an assertion to check VALUE alignment.
+
+	* gc.c (aligned_malloc): `&' is low priority than `=='.
+
+	* gc.c: define GC_DEBUG everytime and use it as value 0 or 1.
+
+Mon Aug 19 17:43:44 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_fiber.rb: collect garbage fibers immediately.
+
+Mon Aug 19 17:41:49 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* test/profile_test_all.rb: add `failed?' information.
+
+Mon Aug 19 17:00:53 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (retry_fork): retry with GC if ENOMEM occurred, to free
+	  swap/kernel space.
+
+Mon Aug 19 13:28:47 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* include/ruby/win32.h (CLOCK_MONOTONIC): typo.
+
+	* win32/win32.c: removed duplicated declarations.
+
+Mon Aug 19 13:03:08 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (clock_gettime): should not overwrite cache variable
+	  with different condition.  otherwise -lrt is not linked and the link
+	  fails, after reconfig.
+
+Mon Aug 19 12:56:49 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (Init_process): Add constants: CLOCK_REALTIME_ALARM and
+	  CLOCK_BOOTTIME_ALARM.
+
+Sun Aug 18 20:17:41 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* variable.c, vm_method.c: remove dead code.
+
+	* test/ruby/test_fiber.rb, test/ruby/test_thread.rb:
+	  change accordingly.
+
+Sun Aug 18 19:32:26 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* error.c, file.c, gc.c, hash.c, thread.c, variable.c, vm_eval.c, bin/erb:
+	  $SAFE=4 is obsolete.
+
+Sun Aug 18 14:30:47 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_clock_gettime): Rename POSIX_TIME_CLOCK_REALTIME to
+	  ISO_C_TIME_CLOCK_REALTIME.
+
+Sun Aug 18 14:22:45 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Revert r42604.  It causes linking librt on systems
+	  with newer glibc uselessly.
+
+Sun Aug 18 13:18:38 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (Init_process): Add constants: CLOCK_REALTIME_COARSE,
+	  CLOCK_MONOTONIC_COARSE and CLOCK_BOOTTIME.
+
+Sun Aug 18 12:41:50 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (clock_gettime): need to check with -lrt prior to check
+	  for the function only.  otherwise -lrt is not linked and the link
+	  fails, when ac_cv_func_clock_gettime is cached as yes.
+
+Sun Aug 18 10:05:12 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big2str1): Make an expression more explicit.
+
+Sun Aug 18 03:18:45 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big2str1): Use power_level instead of bitsize(xn).
+
+Sun Aug 18 00:44:58 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (BIGDIVREM_EXTRA_WORDS): Redefine to 1.
+	  (bigdivrem_num_extra_words): Removed.
+	  (bigdivrem_normal): Simplified.
+	  (big2str_karatsuba): Ditto.
+
+Sat Aug 17 23:25:19 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* test/ruby/test_time.rb: use the in_timezone() helper
+	  and define it at the top with other helpers.
+
+Sat Aug 17 22:20:47 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* time.c (time_mload): ignore auxiliary data, offset and zone, if
+	  invalid.  [ruby-core:56648] [Bug #8795]
+
+Sat Aug 17 20:11:49 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* process.c: [DOC] MACH_ABSOLUTE_TIME_CLOCK_MONOTONIC is an
+	  available emulation for a monotonic clock on Darwin.
+	  https://developer.apple.com/library/mac/qa/qa1398/_index.html
+
+Fri Aug 16 18:12:05 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* test/profile_test_all.rb: fix typo.
+
+Fri Aug 16 18:09:20 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* test/profile_test_all.rb: remove space characters from test names.
+
+Fri Aug 16 17:32:02 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* test/profile_test_all.rb: refactoring memory profiling tool for
+	  test-all.
+	  Add profiling targets /proc/meminfo and /proc/self/status.
+
+	* test/runner.rb: accept other than 'true'.
+
+Fri Aug 16 11:23:35 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* file.c (rb_file_size, rb_file_flock): improve performance of Windows.
+
+	* file.c (rb_file_truncate): removed unnecessary #ifdef.
+
+	* test/test_file.rb (TestFile#test_truncate_size): added an assertion
+	  for File#size.
+
+Fri Aug 16 10:07:59 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigdivrem_single1): Renamed from bigdivrem_single.  Add
+	  x_higher_bdigit argument.
+	  (bigdivrem_single): Just call bigdivrem_single1.
+	  (bigdivrem_restoring): Use bigdivrem_single1 to avoid memmove.
+
+Fri Aug 16 09:17:00 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_small_rshift): Specify the higher BDIGIT instead of
+	  sign bit.
+	  (big_shift3): Follow the above change.
+
+Fri Aug 16 02:20:39 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mul_toom3): Reduce a branch.
+
+Fri Aug 16 02:14:09 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* process.c (rb_clock_gettime): add CLOCK_MONOTONIC support on OS X.
+	  http://developer.apple.com/library/mac/qa/qa1398/_index.html
+	  [Feature #8658]
+
+Fri Aug 16 01:37:43 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigdivrem_single): Use shift when y is a power of two.
+
+Fri Aug 16 01:09:33 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigdivrem_restoring): Use bigdivrem_single if non-topmost
+	  BDIGITs of y are zero.
+
+Fri Aug 16 00:33:12 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big2str1): Truncate topmost zeros of x.
+
+Fri Aug 16 00:00:57 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_divmod): Simplify an expression.
+
+Thu Aug 15 23:26:12 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigdivrem_normal): Remove a local variable.
+
+Thu Aug 15 23:08:32 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2str_karatsuba): Use bigdivrem_restoring directly to
+	  reduce working buffer and memory copy.
+	  (rb_big2str1): Allocate working buffer for big2str_karatsuba here.
+
+Thu Aug 15 20:51:29 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* io.c, internal.h (rb_io_flush_raw): new function to select calling
+	  fsync() (on Windows).
+
+	* io.c (rb_io_flush_raw): use above function.
+
+	* file.c (rb_file_truncate): use above function.
+
+	* test/ruby/test_file.rb (TestFile#test_truncate_size): test for
+	  above changes.
+
+Thu Aug 15 18:39:31 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (clock_gettime): improve precision when freq is less
+	  than and nearly equals 10**9.
+
+Thu Aug 15 17:43:15 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_lazy_sweep): remove heap_increment() here because heap_inc
+	  may be 0.
+
+Thu Aug 15 16:59:56 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* io.c (rb_io_rewind): remove fsync() for Windows to improve the
+	  performance.
+
+Thu Aug 15 16:30:23 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/fileutils/test_fileutils.rb (TestFileUtils#test_rmdir):
+	  FileUtils.rmdir ignores Errno::ENOTEMPTY, so, in such cases, this
+	  assertion is nonsense.
+
+Thu Aug 15 15:49:35 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_clock_gettime): [DOC] FreeBSD 7.1 supports
+	  CLOCK_THREAD_CPUTIME_ID.
+	  http://www.freebsd.org/releases/7.1R/relnotes.html
+
+Thu Aug 15 14:30:23 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* include/ruby/win32.h, win32/Makefile.sub, win32/win32.c
+	  (clock_gettime): [experimental] emulates clock_gettime(2) of posix.
+
+Thu Aug 15 02:32:40 2013  Zachary Scott  <e@zzak.io>
+
+	* hash.c (rb_hash_aset): [DOC] Document key dup patch by @kachick
+	  [Fixes GH-382] https://github.com/ruby/ruby/pull/382
+
+Wed Aug 14 14:28:39 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* proc.c (rb_mod_define_method): now they return the symbols of the
+	  defined methods, not the methods/procs themselves.
+	  [ruby-dev:42151] [Feature #3753]
+
+	* NEWS: documents about above change and def-expr (see r42337).
+
+	* test/ruby/test_module.rb: tests about above change.
+
+Wed Aug 14 00:51:14 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigdivrem_restoring): xn argument removed.
+	  (bigdivrem_normal): Follow the above change.
+
+Wed Aug 14 00:18:39 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big_div_struct): Remove xn and j field.  Add zn field.
+	  (bigdivrem1): Follow the above change.
+	  (bigdivrem_restoring): Ditto.
+
+Tue Aug 13 23:38:17 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big_div_struct): ynzero field removed.
+	  (bigdivrem1): Follow the above change.
+	  (bigdivrem_restoring): Ditto.
+
+Tue Aug 13 23:01:16 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigdivrem_restoring): Extracted from bigdivrem_normal.
+
+Tue Aug 13 22:12:59 2013  Kenichi Kamiya  <kachick1@gmail.com>
+
+	* random.c (rb_random_ulong_limited): coerce before check negative.
+	  [Fixes GH-379]
+
+Tue Aug 13 21:52:15 2013  Kenichi Kamiya  <kachick1@gmail.com>
+
+	* object.c (Init_Object): undef Module#prepend_features on Class, as
+	  well as Module#append_features.  [Fixes GH-376]
+
+	* test_class.rb: Added test for above. And ensure type checking
+	  on similar methods as module_function.
+
+Tue Aug 13 08:52:18 2013  Zachary Scott  <e@zzak.io>
+
+	* doc/syntax/literals.rdoc: [DOC] String literal concat by @cknadler
+	  [Fixes GH-380] https://github.com/ruby/ruby/pull/380
+
+Mon Aug 12 23:07:21 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (gc_marks_test): inhibit gc for st's operation.
+
+Mon Aug 12 15:59:50 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_whole_match_p): treat CR in middle of a line as a
+	  mere whitespace.
+
+Mon Aug 12 15:16:58 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* class.c (rb_prepend_module): make T_ICLASS object shady because
+	  this T_ICLASS object seems to share method table with other class
+	  objects. It was causes WB miss.
+	  TODO: need to know the data structure.
+
+	* test/ruby/test_module.rb: add a test for WB miss.
+
+Mon Aug 12 13:47:54 2013  Zachary Scott  <e@zzak.io>
+
+	* process.c: [DOC] RDoc formatting of Process.clock_gettime
+
+Mon Aug 12 13:29:09 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/yaml/dbm.rb: [DOC] Document call-seq for YAML::DBM
+
+Mon Aug 12 12:57:26 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/dbm/extconf.rb: [DOC] Hide from RDoc
+	  Some libraries might want to document extconf.rb so RDoc treats it
+	  like any other ruby program. However, DBM users shouldn't care about
+	  these methods.
+
+Mon Aug 12 12:53:39 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/dbm/dbm.c: [DOC] Reformat headings of DBM class
+
+Mon Aug 12 12:46:31 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/yaml.rb, lib/yaml/: [DOC] Document YAML::DBM#key and add
+	  references to similar methods with more detail. This patch brings
+	  lib/yaml to 100% documentation coverage.
+
+Mon Aug 12 02:51:32 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/readline/readline.c (readline_s_set_input): on OS X with editline,
+	  Readline.readline doesn't work because readline_get doesn't use
+	  rl_getc. The difference is introduced by r42402 [ruby-dev:47509]
+	  [Bug #8644]. Before it rb_io_stdio_file set ifp->stdio_file.
+	  Therefore add manually setting the value.
+
+	* ext/readline/readline.c (readline_s_set_output): ditto.
+
+Sun Aug 11 23:27:00 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (rb_str_encode_ospath): OS path encoding on Mac OS X is also
+	  fixed.
+
+Sun Aug 11 22:57:24 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/test_require.rb (assert_require_nonascii_path): OS path
+	  encoding on Windows is fixed, so encoding of __FILE__ should be it.
+	  [ruby-core:56498] [Bug #8764]
+
+Sun Aug 11 19:11:45 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/parser/test_sax2.rb: Expand abbreviated class name.
+
+Sun Aug 11 19:06:03 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/sax2listener.rb (REXML::SAX2Listener#notationdecl): Fix
+	  wrong number of arguments in the template listener.
+	  [Bug #8731] [ruby-dev:47582]
+	  Reported by Ippei Obayashi.
+	* test/rexml/parser/test_sax2.rb: Add tests for parsing notation
+	  declarations with SAX2 API.
+
+Sun Aug 11 18:44:04 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/sax2listener.rb (REXML::SAX2Listener#elementdecl): Fix wrong
+	  examples. [Bug #8731] [ruby-dev:47582]
+	  Reported by Ippei Obayashi.
+
+Sun Aug 11 18:42:13 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/sax2parser.rb
+	  (REXML::Parsers::SAX2Parser#handle_entitydecl): Extract.
+
+Sun Aug 11 18:40:25 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/sax2parser.rb (REXML::Parsers::SAX2Parser#parse):
+	  Fix wrong "%" position in parameter entity declaration event argument.
+	* test/rexml/parser/test_sax2.rb: Add tests for the above case.
+
+Sun Aug 11 18:08:40 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/sax2parser.rb (REXML::Parsers::SAX2Parser#parse):
+	  Support NDATA in external ID entity declaration.
+	* test/rexml/parser/test_sax2.rb: Add tests for the above case.
+
+Sun Aug 11 18:07:39 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/baseparser.rb
+	  (REXML::Parsers::BaseParser#pull_event): Support optional NDATA
+	  in external ID entity declaration.
+
+Sun Aug 11 17:54:07 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* NEWS (REXML::Parsers::SAX2Parser): Add about this change.
+	* lib/rexml/parsers/sax2parser.rb (REXML::Parsers::SAX2Parser#parse):
+	  Fix wrong number of arguments. Document says "an array of the
+	  entity declaration" but it passes two or more arguments.
+	  This is a bug but it break backward compatibility.
+	  Reported by Ippei Obayashi. [Bug #8731] [ruby-dev:47582]
+	* lib/rexml/sax2listener.rb (REXML::SAX2Listener#entitydecl): ditto.
+	  The listener template accepted two arguments.
+	* test/rexml/parser/test_sax2.rb: Add tests for external ID case.
+
+Sun Aug 11 17:41:41 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/parser/test_sax2.rb: Add SAX2 API test.
+
+Sun Aug 11 15:10:40 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (rb_enc_symname_type): allow ID_ATTRSET for ID_INSTANCE,
+	  ID_GLOBAL, ID_CLASS, ID_JUNK too.  [Bug #8756]
+
+Sun Aug 11 13:17:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* include/ruby/encoding.h: Reduce ENCODING_INLINE_MAX to 127 as this
+	  should be sufficient to represent all the encodings Ruby supports.
+
+Sun Aug 11 11:54:38 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_clock_gettime): New method.
+	  This is accepted in the meeting:
+	  https://bugs.ruby-lang.org/projects/ruby/wiki/DevelopersMeeting20130809
+	  This method is accepted as a CRuby feature.
+	  I.e. Other Ruby implementations don't need to implement it.
+	  [ruby-core:56087] [Feature #8658]
+
+Sun Aug 11 10:40:48 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/time.rb: [DOC] Correcting rdoc visibility of time.rb constants
+	  Reported by Tanaka Akira [ruby-core:56517]
+
+Sun Aug 11 04:48:14 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* file.c (rb_str_normalize_ospath):
+	  HFS Plus (Mac OS Extended) uses a variant of Normal Form D in which
+	  U+2000 through U+2FFF, U+F900 through U+FAFF, and U+2F800 through
+	  U+2FAFF are not decomposed (this avoids problems with round trip
+	  conversions from old Mac text encodings).
+	  http://developer.apple.com/library/mac/qa/qa1173/_index.html
+	  Therefore fix r42457 to exclude the range.
+
+Sun Aug 11 03:26:07 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bitsize): Fix a conditional expression.
+
+Sun Aug 11 02:44:03 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/time.rb: [DOC] Document constants by @markijbema [Fixes GH-377]
+	  https://github.com/ruby/ruby/pull/377
+
+Sun Aug 11 01:28:52 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Revert r42458.
+	  It removes the HAVE_CLOCK_GETTIME from config.h.
+	  http://www.rubyist.net/~akr/chkbuild/debian/ruby-trunk/log/20130809T044800Z.diff.html.gz
+
+Sat Aug 10 13:53:22 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (rb_id_attrset): allow other than ID_ATTRSET.
+
+	* parse.y (intern_str): ditto.  try stem ID for ID_INSTANCE,
+	  ID_GLOBAL, ID_CLASS, ID_JUNK too.  [Bug #8756]
+
+Sat Aug 10 12:49:50 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/baseparser.rb
+	  (REXML::Parsers::BaseParser::CDATA_END): Use "\A" instead of "^".
+	  It is not an used constant but I fix it. (Or should I remove it?)
+
+Sat Aug 10 12:47:19 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/baseparser.rb (REXML::Parsers::BaseParser):
+	  Fix wrong constant name. "]>" pattern match is the same but
+	  it is used for "<!DOCTYPE" end mark not "<![CDATA[" end mark.
+
+Sat Aug 10 12:43:15 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/baseparser.rb (REXML::Parsers::BaseParser):
+	  Use "\A" instead of "^" in document type declaration patterns
+	  because they are used as the head match in content not the head
+	  match in line. They don't cause any problems in the current code
+	  but it should be fixed.
+
+Sat Aug 10 12:39:00 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/parse/test_document_type_declaration.rb: Add tests for
+	  parsing document type declaration.
+
+Sat Aug 10 12:00:45 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/baseparser.rb (REXML::Parsers::BaseParser::SYSTEM):
+	  Fix loose "head" match regular expression. It doesn't cause any
+	  problem in the current code but it should be fixed because readers
+	  may confuse it.
+	  Patch by Ippei Obayashi. Thanks!!!
+
+Sat Aug 10 11:58:24 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/parse/test_notation_declaration.rb (#test_system_public):
+	  Add a test for PUBLIC notation and SYSTEM notation order case.
+
+Sat Aug 10 11:31:35 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/baseparser.rb (REXML::Parsers::BaseParser::PUBLIC):
+	  Fix loose "head" match regular expression.
+	  [Bug #8701] [ruby-dev:47551]
+	  Patch by Ippei Obayashi. Thanks!!!
+	* test/rexml/parse/test_notation_declaration.rb (#test_system_public):
+	  Add a test for the above case.
+
+Sat Aug 10 09:20:21 2013  Zachary Scott  <e@zzak.io>
+
+	* NEWS: [DOC] typo in example reported by @moretea
+	  https://github.com/ruby/ruby/commit/a39e724#commitcomment-3831489
+
+Sat Aug 10 09:19:04 2013  Zachary Scott  <e@zzak.io>
+
+	* proc.c: [DOC] rdoc code formatting
+
+Sat Aug 10 09:12:01 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (rb_id_attrset): check if the argument is valid type as an
+	  attribute.
+
+Sat Aug 10 05:44:08 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/rss/trackback.rb: [DOC] Hide RSS::Trackback from rdoc
+	  Patch by Steve Klabnik [Bug #8755] [ruby-core:56456]
+
+Sat Aug 10 04:52:21 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big_div_struct): Use size_t.
+	  (bigdivrem1): Ditto.
+	  (bigdivrem_num_extra_words): Ditto.
+	  (bigdivrem_single): Ditto.
+	  (bigdivrem_normal): Ditto.
+	  (bary_divmod): Ditto.
+
+Fri Aug  9 23:47:15 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rss/rexmlparser.rb: Remove needless REXML version check.
+	  Both RSS Parser and REXML are bundled in Ruby. RSS Parser can
+	  always use the latest REXML. [Bug #8754] [ruby-core:56454]
+	  Patch by Steve Klabnik. Thanks!!!
+
+Fri Aug  9 22:51:10 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (XLDFLAGS, LIBRUBYARG_STATIC): CoreFoundation framework
+	  option is now needed always, regardless enable-shared.
+	  [ruby-core:56467] [Bug #8759]
+
+Fri Aug  9 22:20:51 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ruby.c (load_file_internal): use rb_parser_compile_string_path and
+	  rb_parser_compile_file_path, String path name versions.  [Bug #8753]
+
+Fri Aug  9 07:16:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* ext/io/console/console.c: delete redefinition of rb_cloexec_open.
+	  drop support for 1.8 and 1.9 from the next release of io-console gem.
+
+Fri Aug  9 19:13:54 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* NEWS: update about new methods for Binding.
+
+Fri Aug  9 18:48:09 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* proc.c: add Binding#local_variable_get/set/defined?
+	  to access local variables which a binding contains.
+	  Most part of implementation by nobu.
+
+	* test/ruby/test_proc.rb: add a tests for above.
+
+	* vm.c, vm_core.h (rb_binding_add_dynavars): add a new function
+	  to add a new environment to create space for new local variables.
+
+Fri Aug  9 14:02:01 2013  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* tool/make-snapshot: Fix order of priority for option parameter.
+
+Fri Aug  9 12:06:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (rb_str_normalize_ospath): normalize to Normalization Form C
+	  using CFString.
+
+Fri Aug  9 10:53:57 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* time.c (get_timeval, get_new_timeval): use rb_obj_class()
+	  instead of CLASS_OF() because CLASS_OF() may return
+	  a singleton class.
+
+Fri Aug  9 10:42:11 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm_insnhelper.c (vm_invoke_block): returning from lambda proc
+	  now always exits from the Proc. [ruby-core:56193] [Feature #8693]
+
+	* NEWS, test/ruby/test_lambda.rb: ditto. Patch by nobu.
+
+Fri Aug  9 00:10:32 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enumerator.c (lazy_zip_func): fix non-single argument.  fix
+	  out-of-bound access and pack multiple yielded values.
+	  [ruby-core:56383] [Bug #8735]
+
+Thu Aug  8 23:01:20 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_mod_singleton_p): new method Module#singleton_class? to
+	  return whether the receiver is a singleton class or not.
+	  [ruby-core:51087] [Feature #7609]
+
+Thu Aug  8 21:56:44 2013  Tanaka Akira  <akr@fsij.org>
+
+	* time.c (time_overflow_p): Avoid signed integer overflow.
+	  (rb_time_new): Fix overflow condition.
+
+Thu Aug  8 19:58:02 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* thread.c (rb_threadptr_pending_interrupt_check_mask):
+	  use RARRAY_RAWPTR() instead of RARRAY_PTR() because
+	  there is no new reference.
+
+Thu Aug  8 19:56:52 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* string.c (rb_str_format_m): use RARRAY_RAWPTR() instead of
+	  RARRAY_PTR() because there is no new reference.
+
+Thu Aug  8 19:55:51 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: define USE_RGENGC_LOGGING_WB_UNPROTECT.
+
+Thu Aug  8 16:44:25 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: add old macro name `RUBY_EVENT_SWITCH'.
+	  This macro name is obsolete because it is renamed to
+	  RUBY_INTERNAL_EVENT_SWITCH, but it has compatibility problem
+	  using this macro name like ruby-prof.
+	  I want to remove this macro after ruby 2.1.
+
+Thu Aug  8 15:37:53 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/coverage/test_coverage.rb (TestCoverage#test_big_code): use `1'
+	  instead of `p' to get rid of a side effect.
+	  Kernel#p without any argument seems to do nothing, but flushes stdout.
+	  and, if stdout is redirected to file, fsync() will be called on
+	  Windows.  so, when running test-all on Windows with redirection, such
+	  as CI environment, this test took a lot of time.
+
+Thu Aug  8 14:54:18 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* NEWS: add description of incompatibility introduced by r42396.
+	  [ruby-core:56329] [Bug #8722]
+
+Thu Aug  8 14:50:36 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* common.mk (mini): portable target to build miniruby
+
+	* common.mk (bisect): run git-bisect with miniruby
+
+	* common.mk (bisect-ruby): run git-bisect with ruby
+
+	* tool/bisect.sh: script for git-bisect
+
+Thu Aug  8 12:11:43 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/webrick/test_httpresponse.rb (test_send_body_*_chunked): these
+	  expectations assumes that the IOs are binmode.  fixed test failures
+	  introduced at r42427 on Windows.
+
+Thu Aug  8 10:27:18 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* range.c (range_last): revert r42400.  [Bug #8739]
+
+Thu Aug  8 10:26:25 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (rb_str_normalize_ospath): extract and move from dir.c.
+
+Thu Aug  8 05:59:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* test/openssl/test_ssl.rb: Fix test for CVE-2013-4073.
+	  Patch by Antonio Terceiro. [Bug #8750] [ruby-core:56437]
+
+Thu Aug  8 03:37:38 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/webrick/httpresponse.rb:  Allow #body to be an IO-like object
+	  that responds to #readpartial and #read.
+	  [ruby-trunk - Feature #8155]
+	* NEWS:  NEWS for above
+	* test/webrick/test_httpresponse.rb:  Tests for above.
+
+Wed Aug  7 23:06:26 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* ruby.c (Process.argv0): New method to return the original value
+	  of $0. [Feature #8696]
+
+Wed Aug  7 23:05:55 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* ruby.c (Process.setproctitle): New method to change the title of
+	  the running process that is shown in ps(1). [Feature #8696]
+
+Wed Aug  7 20:05:38 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big_odd_p): Check the bignum length.
+	  (rb_big_even_p): Ditto.
+
+Wed Aug  7 19:29:26 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (dbl2big): A condition simplified.
+
+Wed Aug  7 16:34:30 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/webrick/test_cgi.rb (TestWEBrickCGI#{start_cgi_server,test_cgi}):
+	  mswin is not only mswin32 but also mswin64. [Bug #8746]
+
+Wed Aug  7 16:19:12 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* cont.c (rb_fiber_start): use RARRAY_RAWPTR() instead of
+	  RARRAY_PTR() because there is no new reference.
+
+	* proc.c (curry): ditto.
+
+	* proc.c (rb_proc_call): remove line break.
+
+Wed Aug  7 13:20:12 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* random.c (random_load): use RARRAY_RAWPTR() instead of
+	  RARRAY_PTR() because there is no new reference.
+
+Wed Aug  7 12:58:23 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* thread.c (thread_start_func_2): use RARRAY_RAWPTR() instead of
+	  RARRAY_PTR() because there is no new reference.
+
+Wed Aug  7 09:00:24 2013  Zachary Scott  <e@zzak.io>
+
+	* string.c: [DOC] Description of rb_str_equal [Fixes GH-375]
+	  Based on a patch by @markijbema
+	  https://github.com/ruby/ruby/pull/375
+
+Wed Aug  7 08:30:38 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/openssl/ossl_hmac.c: [DOC] Documentation for OpenSSL::HMAC
+	  based on a patch by @repah documenting-ruby/ruby#14
+	  https://github.com/documenting-ruby/ruby/pull/14
+
+Wed Aug  7 07:46:23 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/rss/utils.rb: [DOC] RSS::Utils by Steve Klabnik [Bug #8745]
+
+Wed Aug  7 07:38:39 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (nlz16): Removed.
+	  (nlz32): Ditto.
+	  (nlz64): Ditto.
+	  (nlz128): Ditto.
+	  (nlz_int): New function.
+	  (nlz_long): New function.
+	  (nlz_long_long): New function.
+	  (nlz_int128): New function.
+	  (nlz): Follow above changes.
+	  (bitsize): Follow above changes.
+
+Tue Aug  6 22:38:15 2013  Zachary Scott  <e@zzak.io>
+
+	* time.c: [DOC] Typo in Time overview by @sparr [Fixes GH-374]
+	  https://github.com/ruby/ruby/pull/374
+
+Tue Aug  6 22:35:32 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/rss/1.0.rb: [DOC] Document RSS10 by Steve Klabnik [Bug #8740]
+
+Tue Aug  6 22:14:11 2013  Kouji Takao  <kouji.takao@gmail.com>
+
+	* ext/readline/readline.c (readline_s_delete_text): remove
+	  checking "$SAFE == 4".
+
+	* ext/readline/readline.c: fix rdoc, remove "Raises SecurityError"
+	  and add "Raises NotImplementedError".
+
+Tue Aug  6 22:04:38 2013  Kouji Takao  <kouji.takao@gmail.com>
+
+	* ext/readline/readline.c, test/readline/test_readline.rb: fix
+	  indent.
+
+Tue Aug  6 21:59:56 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* range.c (range_last): return nil for empty range, or in the case the
+	  predecessor is smaller than the begin.  [Bug #8739]
+
+Tue Aug  6 21:48:31 2013  Kouji Takao  <kouji.takao@gmail.com>
+
+	* ext/readline/readline.c (readline_s_set_point, Init_readline):
+	  add Readline.point=(pos). Patched by naruse.  [ruby-dev:47535]
+	  [Feature #8675]
+
+Tue Aug  6 21:14:11 2013  Kouji Takao  <kouji.takao@gmail.com>
+
+	* ext/readline/readline.c (Init_readline, readline_s_set_output)
+	(clear_rl_outstream, readline_s_set_input, clear_rl_instream)
+	(readline_readline): fix causing SEGV if closed IO object that is
+	  set Readline.input or Readline.output. Patched by akr
+	  [ruby-dev:47509] [Bug #8644]
+
+Tue Aug  6 17:56:40 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (vm_push_frame): change type of stack_max to size_t.
+
+Tue Aug  6 17:42:47 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* range.c (range_last): exclude the last number of the exclusive range
+	  if the end is Numeric.  [ruby-dev:47587] [Bug #8739]
+
+Tue Aug  6 17:42:21 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_conv_from_wchar): converted string to CP_UTF8
+	  should have UTF-8 encoding.  otherwise no conversion takes place
+	  later.
+
+Tue Aug  6 17:21:38 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (vm_push_frame): fix stack overflow check codes.
+	  Stack overflow check should be done *after* pushing a stack frame.
+	  However, some stack overflow checking codes checked *before*
+	  pushing a stack frame with iseq->stack_max.
+	  To solve this problem, add a new parameter `stack_max' to specify
+	  a possible consuming stack size.
+
+	* vm_core.h (CHECK_VM_STACK_OVERFLOW0): add to share the stack overflow
+	  checking code.
+
+	* insns.def: catch up this change.
+
+	* vm.c, vm_eval.c: ditto.
+
+	* test/ruby/test_exception.rb: add a stack overflow test.
+	  This code is reported by nobu.
+
+Tue Aug  6 17:02:17 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_conv_from_wchar): use WideCharToMultiByte(),
+	  as like as mbstr_to_wstr(), in the first step of the conversion from
+	  WCHAR.
+
+Tue Aug  6 16:14:32 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_eval.c (eval_string_with_cref): copy cref to limit the scope of
+	  refinements in the eval string. [ruby-core:56329] [Bug #8722]
+
+	* test/ruby/test_refinement.rb: related test.
+
+Tue Aug  6 12:23:12 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big_realloc): Use VALGRIND_MAKE_MEM_UNDEFINED to
+	  declare undefined memory area.
+	  (bignew_1): Ditto.
+
+	* internal.h (VALGRIND_MAKE_MEM_DEFINED): Moved from gc.c
+	  (VALGRIND_MAKE_MEM_UNDEFINED): Ditto.
+
+Tue Aug  6 01:40:37 2013  Zachary Scott  <e@zzak.io>
+
+	* process.c: [DOC] Document caveats of command form of Process.spawn
+	  with regard to the shell and OS. Patched by Steve Klabnik [Bug #8550]
+
+Tue Aug  6 01:28:35 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/rss/0.9.rb: [DOC] Typo in example [Bug #8732]
+
+Tue Aug  6 01:22:37 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/rss/2.0.rb: [DOC] Document RSS::Rss by Steve Klabnik #8740
+	* lib/rss/atom.rb: [DOC] Typo in rdoc by Steve Klabnik
+
+Mon Aug  5 23:47:59 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c: Rename local variables.
+
+Mon Aug  5 22:23:59 2013  Zachary Scott  <e@zzak.io>
+
+	* vm_trace.c: [DOC] Fix TracePoint return values in examples
+	  Based on a patch by @sho-h [Fixes GH-373]
+	  https://github.com/ruby/ruby/pull/373
+
+Mon Aug  5 17:38:15 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_write_console): use MultiByteToWideChar() for
+	  the last step of conversion to WCHAR, to get rid of warnings from
+	  rb_enc_find() in miniruby.  [ruby-dev:47584] [Bug #8733]
+
+	* win32/win32.c (wstr_to_mbstr, mbstr_to_wstr): fix wrong trimming.
+	  WideCharToMultiByte() and MultiByteToWideChar() do not count
+	  NUL-terminator in the size for conversion result, unless the input
+	  length is -1.
+
+Mon Aug  5 11:51:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* include/ruby/encoding.h: document which user flags are used by
+	  ENCODING_MASK for better greppability
+
+Mon Aug  5 10:01:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* object.c (rb_class_inherited_p): allow iclasses to be tested for
+	  inheritance. [Bug #8686] [ruby-core:56174]
+
+	* test/ruby/test_method.rb: add test
+
+Mon Aug  5 06:13:48 2013  Zachary Scott  <e@zzak.io>
+
+	* enumerator.c: [DOC] Remove reference to Enumerator::Lazy#cycle
+	  Patch by @kachick [Fixes GH-372]
+	  https://github.com/ruby/ruby/pull/372
+
+Mon Aug  5 03:57:16 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/rss/0.9.rb: [DOC] Document RSS09 by Steve Klabnik [Bug #8732]
+
+Mon Aug  5 03:35:11 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/rexml/attribute.rb: [DOC] Update example for #namespace
+	  Patch by Ippei Obayashi [Bug #8685] [ruby-core:56173]
+
+Sun Aug  4 21:08:29 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_zip): performance implement by using
+	  ALLOCA_N() to allocate tmp buffer.
+
+Sun Aug  4 07:14:49 2013  Tanaka Akira  <akr@fsij.org>
+
+	* README.EXT, README.EXT.ja: Mention rb_integer_pack and
+	  rb_integer_unpack.
+
+Sun Aug  4 01:54:45 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (BARY_TRUNC): New macro.
+	  (bary_cmp): Use BARY_TRUNC.
+	  (bary_mul_toom3): Ditto.
+	  (bary_divmod): Ditto.
+	  (abs2twocomp): Ditto.
+	  (bigfixize): Ditto.
+	  (rb_cstr_to_inum): Ditto.
+	  (big2str_karatsuba): Ditto.
+	  (bigdivrem): Ditto.
+
+Sun Aug  4 00:57:58 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2str_karatsuba): Don't allocate new temporary buffer
+	  if the buffer is enough for current invocation.
+
+Sun Aug  4 00:22:34 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary2bdigitdbl): New function.
+	  (bdigitdbl2bary): Ditto.
+	  (bary_mul_single): Use bdigitdbl2bary.
+	  (power_cache_get_power): Ditto.
+	  (bary_divmod): Use bary2bdigitdbl.
+	  (big2str_orig): Ditto.
+	  (bigdivrem): Ditto.
+
+Sat Aug  3 22:47:11 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c: The branch condition of selecting multiplication
+	  algorithms should check smaller argument because Karatsuba and Toom3
+	  is effective only if both arguments are big.
+	  (bary_mul_toom3_branch): Compare the smaller argument to
+	  TOOM3_MUL_DIGITS.
+	  (bary_mul): Compare the smaller argument to KARATSUBA_MUL_DIGITS.
+
+Sat Aug  3 22:23:31 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2str_orig): Receive the number to stringize as
+	  BDIGIT array and size.
+	  (big2str_karatsuba): Receive the number to stringize as BDIGIT array
+	  and size.  Use an temporary array of BDIGIT.
+	  (rb_big2str1): Follow the above change.
+
+Sat Aug  3 13:30:04 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (MAX_BASE36_POWER_TABLE_ENTRIES): Renamed from
+	  MAX_BIG2STR_TABLE_ENTRIES.
+	  (base36_power_cache): Renamed from big2str_power_cache.
+	  (base36_numdigits_cache): Renamed from big2str_numdigits_cache.
+
+Sat Aug  3 10:33:52 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_set_integer_literal): use rb_rational_raw1() for
+	  integral rational because no reduction is needed with 1.
+
+Sat Aug  3 09:46:07 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/etc/etc.c (setup_passwd, setup_group): set proper encodings to
+	  string members.
+
+Sat Aug  3 09:30:57 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* struct.c (rb_struct_define_under): new function to define Struct
+	  under the given namespace, not under Struct.  [Feature #8264]
+
+	* ext/etc/etc.c: use rb_struct_define_under.
+
+Sat Aug  3 06:55:29 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* parse.y (value_expr_gen): now NODE_DEFN and NODE_DEFS are not void
+	  value expressions.  get rid of wrong warning with -w, and make to
+	  pass tests with chkbuild.  ref. [Feature #3753]
+
+Sat Aug  3 04:23:48 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/refinements.rdoc:  Remove mention of instance_eval and
+	  module_eval from scope section per:
+	  http://twitter.com/shugomaeda/status/363219951336693761
+
+Sat Aug  3 02:22:05 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2str_orig): Refactored.
+
+Sat Aug  3 01:20:19 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigadd_core): Removed.
+	  (bigadd): Use bary_add instead of bigadd_core.
+
+Sat Aug  3 00:52:43 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big2str1): Simplify power_level calculation.
+
+Sat Aug  3 00:34:20 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_zip): use rb_ary_new2() to create buffer
+	  if rb_block_arity() > 1.
+
+Sat Aug  3 00:12:00 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* NEWS: Add the description that IO#seek supports SEEK_DATA
+	  and SEEK_HOLE.
+
+Fri Aug  2 23:57:57 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* vm.c (m_core_define_method, m_core_define_singleton_method): now
+	  the value of def-expr is the Symbol of the name of the method, not
+	  nil.
+	  ref. [ruby-dev:42151] [Feature #3753]
+
+	* test/ruby/test_syntax.rb (TestSyntax#test_value_of_def): test for
+	  above changes.
+
+Fri Aug  2 23:54:11 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_zip): performance improvement by avoiding
+	  array creation if rb_block_arity() > 1.
+
+Fri Aug  2 23:50:53 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (power_cache_get_power): Apply bigtrunc to the result of
+	  bigsq.
+	  (big2str_karatsuba): Fix number of leading zero characters.
+
+Fri Aug  2 23:48:36 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_yylex): calculate denominator directly as powers of
+	  ten, not parsing string.
+
+	* parse.y (parser_number_literal_suffix): return bit set of found
+	  suffixes.
+
+	* parse.y (parser_set_number_literal, parser_set_integer_literal):
+	  split from parser_number_literal_suffix to set yylval.
+
+	* parse.y (parser_yylex): parse rational number literal with decimal
+	  point precisely.
+
+	* parse.y (simple_numeric): integrate numeric literals and simplify
+	  numeric rules.
+
+	* ext/ripper/eventids2.c (ripper_init_eventids2): ripper support for
+	  new literals, tRATIONAL and tIMAGINARY.
+
+Fri Aug  2 18:33:28 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2str_karatsuba): Reduce power_level more than one at
+	  recursion, if possible.
+	  (rb_big2str1): Follow the above change.
+
+Fri Aug  2 12:25:15 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mul): Swap x and y for bary_mul1 if x is longer than y.
+	  [ruby-dev:47565] [Bug #8719] Reported by Narihiro Nakamura.
+
+Fri Aug  2 10:39:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* parse.y (negate_lit): add T_RATIONAL and T_COMPLEX to the switch
+	  statement, and call rb_bug() if an unknown type is passed to
+	  negate_lit(). [ruby-core:56316] [Bug #8717]
+
+	* bootstraptest/test_literal_suffix.rb (assert_equal): add test
+
+Fri Aug  2 09:14:47 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/syntax/refinements.rdoc:  Improve description of where you may
+	  activate refinements.
+
+Fri Aug  2 07:45:55 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2str_orig): Remove len argument.
+	  (big2str_karatsuba): Ditto.
+	  (rb_big2str1): Follow above change.
+
+Thu Aug  2 02:32:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* NEWS: Add the description of number literal suffixes.
+
+Thu Aug  2 00:02:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* bootstraptest/test_literal_suffix.rb: add two test cases to
+	  examine that "1if true" and "1rescue nil" are recognized as 1.
+
+Thu Aug  1 23:45:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* rational.c (rb_flt_rationalize_with_prec): new public C function
+	  to rationalize a Float instance with a precision.
+
+	* rational.c (rb_flt_rationalize): new public C function to
+	 rationalize a Float instance.  A precision is calculated from
+	 the given float number.
+
+	* include/ruby/intern.h: Add rb_flt_rationalize_with_prec and
+	  rb_flt_rationalize.
+
+	* parse.y: implement number literal suffixes, 'r' and 'i'.
+	  [ruby-core:55096] [Feature #8430]
+
+	* bootstraptest/test_literal_suffix.rb: add tests for parser to scan
+	  number literals with the above tsuffixes.
+
+Thu Aug  1 23:55:08 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big2str1): Remove a local variable.
+
+Thu Aug  1 23:33:01 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_cstr_to_inum): Use power_cache_get_power.
+
+Thu Aug  1 21:02:48 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big2str1): Raise an error for too big number.
+
+Thu Aug  1 20:46:29 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (power_cache_get_power): Hide cached Bignum objects.
+
+Thu Aug  1 19:15:05 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big2str1): Remove non-trim mode.
+	  (rb_big2str0): Non-trim mode implemented here.
+	  (big2str_find_n1): Change the result type to long again.
+	  (big2str_base_powerof2): Don't take arguments: len and trim.
+	  (rb_big2str): Follow above change.
+
+Thu Aug  1 12:37:58 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2str_alloc): New function to allocate the result string.
+	  It is called after actual length is calculated.
+	  (big2str_struct): Add fields: negative, result and ptr.
+	  (big2str_orig): Write out the result via b2s->ptr.
+	  (big2str_orig): Ditto.
+	  (rb_big2str1): Don't allocate the result string at beginning.
+
+Thu Aug  1 07:36:27 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2str_orig): Use temporary buffer when trim mode.
+
+Thu Aug  1 06:28:48 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2str_orig): Simplified because RBIGNUM_LEN(x) <= 2 now.
+	  (big2str_struct): Two fields added: hbase2, hbase2_numdigits.
+	  (rb_big2str1): Initialize above fields.
+
+Thu Aug  1 04:06:17 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/rdoc/options.rb (RDoc#finish): include root path in include
+	  paths, to work in another directory than the source directory.
+	  [ruby-core:56282] [Bug #8712]
+
+	* test/test_rdoc_markup_pre_process.rb (TestRDocMarkupPreProcess#setup):
+	  fix input_file_name, as the test script is not pre-processed.
+
+Thu Aug  1 01:45:18 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2str_karatsuba): Fix a condition of power_level.
+
+Thu Aug  1 01:09:02 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (LOG2_KARATSUBA_BIG2STR_DIGITS): Removed.
+	  (KARATSUBA_BIG2STR_DIGITS): Removed.
+	  (big2str_numdigits_cache): New variable.
+	  (power_cache_get_power): Merged with power_cache_get_power0.
+	  This function returns maxpow_in_bdigit_dbl(base)**(2**power_level).
+	  (rb_big2str1): use power_cache_get_power.
+
+Wed Jul 31 23:59:28 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2str_find_n1): Change the return type to size_t.
+	  (big2str_orig): Ditto.
+	  (big2str_karatsuba): Ditto.
+	  (rb_big2str1): Follow the above changes.
+
+Wed Jul 31 23:19:06 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (power_cache_get_power): Change numdigits_ret to size_t *.
+	  (big2str_orig): Change len argument to size_t.
+	  (big2str_karatsuba): Ditto.
+	  (rb_big2str1): Follow the above changes.
+
+Wed Jul 31 22:59:47 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/parse/test_notation_declaration.rb: Change class
+	  name to follow file name change.
+
+Wed Jul 31 22:57:50 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_notationdecl_parsetest.rb: Rename to ...
+	* test/rexml/parse/test_notation_declaration.rb: ... this.
+
+Wed Jul 31 22:54:39 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_notationdecl_mixin.rb: Remove duplicated tests.
+
+Wed Jul 31 22:52:55 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_notationdecl_parsetest.rb: Fix typos in expected
+	  value.
+	  pubilc ->
+	  public
+	     ^^
+
+Wed Jul 31 22:50:51 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_notationdecl_parsetest.rb: Add tests that focus
+	  system literal in external ID system notation declaration.
+
+Wed Jul 31 22:36:21 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_cmp): Extracted from rb_big_cmp.
+	  (power_cache_get_power): Change n1 argument (number of digits) to
+	  power_level which is just passed to power_cache_get_power0.
+	  (big2str_karatsuba): Ditto.
+	  (rb_big2str1): Calculate the initial power_level.
+
+Wed Jul 31 22:04:36 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_notationdecl_parsetest.rb: Fix a typo.
+	  Extern  ID ->
+	  ExternalID
+	        ^^
+
+Wed Jul 31 22:01:36 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_notationdecl_parsetest.rb: Add tests that focus
+	  public ID in external ID notation declaration.
+
+Wed Jul 31 22:01:24 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* parse.y: fix build error with bison-3.0.
+
+Wed Jul 31 21:58:53 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_notationdecl_parsetest.rb: Split test patterns.
+
+Wed Jul 31 21:42:33 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_notationdecl_parsetest.rb: Group tests.
+
+Wed Jul 31 21:37:51 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_notationdecl_mixin.rb (TestNotationDecl#test_name):
+	  Move to ...
+	* test/rexml/test_notationdecl_parsetest.rb
+	  (TestNotationDecl#test_name): ... here.
+
+Wed Jul 31 21:37:47 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+Wed Jul 31 21:31:49 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_notationdecl_parsetest.rb: Remove setup because it
+	  doesn't share anything with other tests.
+
+Wed Jul 31 21:24:55 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_attributes_mixin.rb: Remove a needless shebang.
+	* test/rexml/test_notationdecl_mixin.rb: ditto.
+	* test/rexml/test_doctype.rb: ditto.
+	* test/rexml/test_xml_declaration.rb: ditto.
+	* test/rexml/test_changing_encoding.rb: ditto.
+
+Wed Jul 31 21:20:08 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_notationdecl_parsetest.rb: remove a needless shebang.
+
+Wed Jul 31 20:11:01 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* string.c (rb_str_rindex): fix bug introduced in r42269.
+	  "".rindex("") should return 0.
+	  (str_rindex): ditto.
+
+Wed Jul 31 19:55:33 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (MAX_BIG2STR_TABLE_ENTRIES): Use SIZEOF_SIZE_T.
+	  (power_cache_get_power0): Add rb_bug call for too bit i argument.
+	  (power_cache_get_power): Simplified.
+
+Wed Jul 31 18:32:25 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/uri/common.rb (URI.decode_www_form_component): Use String#b.
+
+Wed Jul 31 18:24:02 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (rb_mod_refine, mod_using, top_using): don't show
+	  warnings because Refinements are no longer experimental.
+	  [ruby-core:55993] [Feature #8632]
+
+	* test/ruby/test_refinement.rb: related test.
+
+	* NEWS: fixes for the above change.
+
+Wed Jul 31 17:55:55 2013  Shota Fukumori  <her@sorah.jp>
+
+	* lib/uri/common.rb (URI.decode_www_form_component):
+	  Don't raise error when str includes multibyte characters.
+
+Wed Jul 31 17:45:39 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* string.c (rb_str_rindex): performance improvement by using
+	  memrchr(3).
+
+Wed Jul 31 16:43:30 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* string.c (rb_str_rindex): refactoring and avoid to call str_nth() if
+	  pos == 0.
+
+Wed Jul 31 14:41:36 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/set.rb: [DOC] Add a couple of notes on Hash as storage.
+	  ref. [Feature #6589]
+
+Wed Jul 31 14:38:52 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/set.rb: [DOC] Fix example result.  Hash is now ordered.
+
+Wed Jul 31 14:38:10 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/set.rb: [DOC] Use the term "sorted" instead of "ordered"
+	  when mentioning SortSet.
+
+Wed Jul 31 12:18:47 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2str_struct): New structure.
+	  (big2str_orig): Use big2str_struct.
+	  (big2str_karatsuba): Ditto.
+	  (rb_big2str1): Ditto.
+
+Wed Jul 31 12:02:16 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/rubygems.rb: [DOC] typo in url patch by @Red54 [Fixes #369]
+	  https://github.com/ruby/ruby/pull/369
+
+Wed Jul 31 07:09:07 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Import RubyGems from master as of commit 523551c
+	* test/rubygems:  ditto.
+
+Tue Jul 30 22:21:54 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* test/ruby/test_hash.rb: add a test for enumeration order of Hash.
+
+Tue Jul 30 18:52:27 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/set.rb (Set#intersect?, Set#disjoint?): Add new methods for
+	  testing if two sets have any element in common.
+	  [ruby-core:45641] [Feature #6588] Based on the code by marcandre.
+
+Tue Jul 30 17:16:15 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* sprintf.c (ruby__sfvextra): add QUOTE flag to escape unprintable
+	  characters.
+
+Tue Jul 30 11:00:52 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/curses/extconf.rb: [DOC] nodoc to reduce Object pollution
+
+Tue Jul 30 08:19:42 2013  Tanaka Akira  <akr@fsij.org>
+
+	* sizes.c (Init_sizes): Define sizes only if the type actually exists.
+
+Mon Jul 29 22:55:26 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* sizes.c (Init_sizes): define RbConfig::SIZEOF.  [Feature #8568]
+
+Mon Jul 29 22:25:20 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/curses/curses.c: [DOC] Update location of samples
+	* samples/curses/*: Move Curses samples and refactor from mixin
+	  The samples are included in rdoc for module and use of mixin is
+	  confusing
+
+Mon Jul 29 22:16:11 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (LOG2_KARATSUBA_BIG2STR_DIGITS): Renamed from
+	  LOG2_KARATSUBA_DIGITS.
+	  (KARATSUBA_BIG2STR_DIGITS): Renamed from KARATSUBA_DIGITS.
+
+Mon Jul 29 22:04:45 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (rb_hash_compare_by_id): add function prototype.
+
+Mon Jul 29 21:53:41 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (rb_hash_compare_by_id): don't call rb_hash_rehash()
+	  if self.compare_by_identity? == true.
+
+Mon Jul 29 21:29:48 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (rb_hash_assoc): performance improvement by replacing
+	  compare function in RHASH(hash)->ntbl->type temporarily like r42224.
+	  it falls back to rb_hash_foreach() if st_lookup() doesn't find the key.
+
+	* test/ruby/test_hash.rb: add a test for above.
+
+Mon Jul 29 21:15:30 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* test/ruby/test_lazy_enumerator.rb
+	  (TestLazyEnumerator#test_initialize): Make sure
+	  Enumerator::Lazy#initialize raises error if the object is
+	  frozen.  The check was performed by rb_ivar_set() before
+	  rb_check_frozen() was added to enumerator_init().
+
+Mon Jul 29 21:06:42 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* enumerator.c (enumerator_init): Add a frozenness check to
+	  prevent a frozen Enumerator object from being reinitialized with
+	  a different enumerable object.  This is the least we should do,
+	  and more fixes will follow. [Fixes GH-368] Patch by Kenichi
+	  Kamiya.
+
+	* enumerator.c (generator_init): Ditto.
+
+Mon Jul 29 20:14:24 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (rb_hash_assoc): revert r42224. table->type->compare is
+	  called only if hashes are matched.
+
+	* test/ruby/test_hash.rb: add a test to check using #== to compare.
+
+Mon Jul 29 17:00:31 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (yycompile): store file name as String to keep the encoding.
+
+	* parse.y (rb_parser_compile_string_path, rb_parser_compile_file_path):
+	  new functions to pass file name as a String.
+
+	* parse.y (gettable_gen): return a copy of the original file name, not
+	  a copy in filesystem encoding.
+
+	* vm_eval.c (eval_string_with_cref): use Qundef instead of "(eval)".
+
+Mon Jul 29 16:53:18 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (rb_hash_initialize_copy): copy st_table type even if empty.
+	  [ruby-core:56256] [Bug #8703]
+
+Mon Jul 29 16:34:29 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (rb_hash_initialize_copy): clear old table before copy new
+	  table.
+
+Mon Jul 29 16:34:09 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (rb_hash_assoc): aggregate object can be initialized only
+	  with link time constants.
+
+Mon Jul 29 14:54:44 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (rb_hash_assoc): performance improvement by replacing
+	  compare function in RHASH(hash)->ntbl->type temporarily.
+
+Mon Jul 29 14:52:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (xsystem): expand environment variable in all macros not
+	  expanded with RbConfig.  [Bug #8702]
+
+	* test/mkmf/test_framework.rb (create_framework): replace all $@ not
+	  only once.
+
+Mon Jul 29 06:54:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_pipe): use enum for compile time constants,
+	  instead of const int for debugging.
+
+Mon Jul 29 00:11:49 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigdivrem): Specialized implementation added for
+	  nx == 2 && ny == 2
+
+Sun Jul 28 20:28:41 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* io.c (io_getpartial): use rb_str_locktmp_ensure().
+	  [ruby-core:56121] [Bug #8669]
+
+	* io.c (rb_io_sysread): ditto.
+
+	* test/ruby/test_io.rb: add tests for above.
+
+Sun Jul 28 20:10:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/extmk.rb (extmake): should make static libraries for extensions
+	  to be statically linked.  [Bug #7948]
+
+Sun Jul 28 17:38:32 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* string.c: add internal API rb_str_locktmp_ensure().
+
+	* io.c (io_fread): use rb_str_locktmp_ensure().
+	  [ruby-core:56121] [Bug #8669]
+
+	* test/ruby/test_io.rb: add a test for above.
+
+Sun Jul 28 13:04:39 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* io.c (interpret_seek_whence): support SEEK_DATA and SEEK_HOLE.
+	  These are whences for lseek(2) supported by Linux since version 3.1.
+	  [ruby-core:56123] [Feature #8671]
+
+	* test/ruby/test_io.rb: Add tests for above.
+
+Sun Jul 28 12:41:39 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (absint_numwords_generic): The char_bit variable changed
+	  to static constant.
+
+Sun Jul 28 12:03:23 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c: Constify bary_* functions.
+
+Sun Jul 28 11:12:07 2013  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/intern.h (rb_absint_size): Declaration moved from
+	  internal.h to calculate required buffer size to pack integers.
+	  (rb_absint_numwords): Ditto.
+	  (rb_absint_singlebit_p): Ditto.
+	  [ruby-core:42813] [Feature #6065]
+
+Sun Jul 28 10:54:26 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_pipe): fix pipe name formatting.  as "%x" may
+	  not contain '0' at all, fill at fixed position instead.
+
+Sun Jul 28 00:35:14 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big_size): Return the bignum "bytewise" size.
+	  [ruby-core:55578] [Feature #8553]
+	  This is accepted by matz on DevelopersMeeting20130727Japan.
+
+Sun Jul 28 00:07:48 2013  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/intern.h (rb_integer_pack): Declaration moved from
+	  internal.h.
+	  (rb_integer_unpack): Ditto.
+	  [ruby-core:42813] [Feature #6065]
+
+Fri Jul 26 23:18:13 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* NEWS: Add a new feature that REXML::Parsers::StreamParser
+	  supports "entity" event.
+
+Fri Jul 26 23:14:31 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/parsers/streamparser.rb
+	  (REXML::Parsers::StreamParser#parse): Add "entity" event support to
+	  listener. [Bug #8689] [ruby-dev:47542]
+	  Reported by Ippei Obayashi.
+	* test/rexml/test_stream.rb (StreamTester#entity): Add a test for
+	  the above case.
+
+Fri Jul 26 23:05:27 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_yylex): separate numeric literal from succeeding
+	  token, and treat 'e' as floating point number only if followed by
+	  exponent part.
+
+Fri Jul 26 22:14:10 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_exec.h (CHECK_VM_STACK_OVERFLOW_FOR_INSN): surround with
+	  do/while (0), and remove unnecessary casts.
+
+Fri Jul 26 20:12:07 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* ext/syslog/lib/syslog/logger.rb (Syslog::Logger): Add facility
+	  to Syslog::Logger. [Fixes GH-305] patch by Max Shytikov
+	  https://github.com/ruby/ruby/pull/305
+
+Fri Jul 26 19:25:17 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_exec.h, tool/instruction.rb: not an error, but a BUG if stack
+	  overflow checking failed just before/after the beginning of an
+	  instruction. It should be treated as a BUG.
+	  Please tell us if your code cause BUG with this problem.
+	  This check will removed soon (for performance).
+
+Fri Jul 26 18:30:14 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (ary_memcpy): cast to int to suppress a warning.
+
+Fri Jul 26 18:21:58 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (ary_memcpy): try to enable optimization.
+	  At least on my environments, I don't see any errors
+	  with many trials. Please tell us if you find any GC bugs.
+
+Fri Jul 26 17:49:26 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/file.c (fix_string_encoding): fix target encoding.  the
+	  parameter `encoding' is not the target encoding but the original
+	  encoding.
+
+Fri Jul 26 14:05:19 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/fiddle/*: [DOC] More doc on dlopen and RTLD_DEFAULT from r42184
+
+Fri Jul 26 13:08:53 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/fiddle/lib/fiddle.rb: [DOC] Document Fiddle.dlopen(nil)
+	* ext/fiddle/handle.c: [DOC] Document Fiddle::Handle.new(nil)
+
+Fri Jul 26 13:04:15 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* load.c (rb_load_internal): use rb_load_file_str() to keep path
+	  encoding.
+
+	* load.c (rb_require_safe): search in OS path encoding for Windows.
+
+	* ruby.c (rb_load_file_str): load file with keeping path encoding.
+
+	* win32/file.c (rb_file_load_ok): use WCHAR type API assuming incoming
+	  path is encoded in UTF-8.  [ruby-core:56136] [Bug #8676]
+
+	* file.c (rb_str_encode_ospath): simplify using rb_str_conv_enc().
+
+	* win32/file.c (fix_string_encoding): simplify with rb_str_conv_enc().
+
+	* win32/file.c (convert_mb_to_wchar): use bare pointer instead of
+	  VALUE, and remove useless argument.
+
+Fri Jul 26 11:42:07 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* rational.c (f_round_common): Rational is expected to be returned by
+	  Rational#*, but mathn.rb breaks that assumption.  [ruby-core:56177]
+	  [Bug #8687]
+
+Fri Jul 26 01:37:45 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* include/ruby/ruby.h: check defined(USE_RGENGC_LOGGING_WB_UNPROTECT)
+
+Fri Jul 26 01:21:41 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* file.c (rb_file_expand_path_internal): fix r42160; skip '~'.
+
+Thu Jul 25 17:53:18 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http.rb (Net::HTTP#connect): disable Nagle's algorithm on
+	  HTTP connection. [ruby-core:56158] [Feature #8681]
+
+Thu Jul 25 17:49:42 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* re.c (rb_reg_to_s): convert closing parenthesis to the target encoding
+	  if it is ASCII incompatible encoding. [ruby-core:56063] [Bug #8650]
+
+Thu Jul 25 17:21:21 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* encoding.c (is_obj_encoding): new macro to check if obj is an
+	  Encoding.  obj can be any type while is_data_encoding expects T_DATA
+	  only.
+
+Thu Jul 25 17:17:52 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (rb_file_expand_path_internal): should clear coderange after
+	  copying user name as binary data.
+
+Thu Jul 25 16:17:55 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* encoding.c (check_encoding): Check T_DATA or not.
+	  is_data_encoding(obj) assumes that `obj' is T_DATA.
+
+Thu Jul 25 13:06:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (dir_s_home): use rb_home_dir_of and rb_default_home_dir.
+
+	* file.c (rb_home_dir_of): split from rb_home_dir() for the home
+	  directry of the given user, and the user name is a VALUE, not a bare
+	  pointer.  should raise if the user does not exist.
+
+	* file.c (rb_default_home_dir): split from rb_home_dir() for the home
+	  directry of the current user.
+
+Thu Jul 25 12:32:11 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/openssl/ossl.c: support additional three thread synchronization
+	  functions. [ruby-trunk - Bug #8386]
+
+Thu Jul 25 07:15:58 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Import RubyGems from master as of commit 4ff70cc
+	* test/rubygems:  ditto.
+
+Wed Jul 24 20:57:44 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (iseq_set_arguments): use RARRAY_RAWPTR() instead of
+	  RARRAY_PTR() because there is no new reference.
+
+	* compile.c (iseq_set_exception_table): ditto.
+
+Wed Jul 24 19:49:54 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/generic.rb (find_proxy): raise BadURIError if the URI is
+	  a relative URI. [Bug #8645]
+
+Wed Jul 24 18:56:06 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (vm_expandarray): use RARRAY_RAWPTR() instead of
+	  RARRAY_PTR() because there is no new reference.
+
+	* vm_insnhelper.c (vm_caller_setup_args): ditto.
+
+	* vm_insnhelper.c (vm_yield_setup_block_args): ditto.
+
+Wed Jul 24 18:40:11 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c, gc.c: move ary_unprotect_logging() into
+	  rb_gc_unprotect_logging() which is general version
+
+	* include/ruby/ruby.h: add USE_RGENGC_LOGGING_WB_UNPROTECT
+	  to enable.
+
+Wed Jul 24 17:37:50 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (rb_file_expand_path_internal): preserve the file name
+	  encoding in an exception message.
+
+Wed Jul 24 08:04:49 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* test/-ext-/tracepoint/test_tracepoint.rb: add GC on/off to count
+	  GC events strictly.
+
+Tue Jul 23 23:19:24 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/openssl/extconf.rb (CRYPTO_THREADID): check exist or not.
+
+	* ext/openssl/ossl.c (ossl_thread_id): use rb_nativethread_self()
+	  implemented at r42137 to allow threads which doesn't associated with
+	  Ruby thread to use openssl functions.
+
+	* ext/openssl/ossl.c (Init_ossl_locks): If CRYPTO_THREADID is defined
+	  (OpenSSL 1.0.0 or later has it) use CRYPTO_THREADID_set_callback()
+	  instead of CRYPTO_set_id_callback() because its argument is
+	  unsigned long; it may cause id collision on mswin64
+	  whose sizeof(unsigned long) < sizeof(void*).
+	  http://www.openssl.org/docs/crypto/threads.html
+
+	* ext/openssl/ossl.c (ossl_threadid_func): defined for above.
+
+Tue Jul 23 20:47:36 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c: Move functions.
+
+Tue Jul 23 20:14:55 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_divmod): Add special cases for x < y easily detected
+	  and nx == 2 && ny == 2.
+
+Tue Jul 23 19:48:38 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* thread_(pthread|win32).h: rename rb_thread_cond_t to
+	  rb_nativethread_cond_t.
+
+	* thread.c, thread_pthread.c, thread_win32.c, vm_core.h: catch up
+	  renaming.
+
+Tue Jul 23 19:44:32 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* thread_native.h: add rb_nativethread_self() which returns
+	  current running native thread identifier.
+
+	* thread_[pthread|win32].c: implement rb_nativethread_self().
+
+Tue Jul 23 19:34:11 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* thread_pthread.h, thread_win32.h: rename rb_thread_id_t to
+	  rb_nativethread_id_t.
+
+	* thread_pthread.c, vm_core.h: use rb_nativethread_id_t.
+
+Tue Jul 23 18:56:11 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/openssl/ossl.c: use system native (system provided)
+	  thread locking APIs added by last commit.
+	  This patch fixes [Bug #8386].
+	  "rb_mutex_*" APIs control only "Ruby" threads.
+	  Not for native threads.
+
+Tue Jul 23 18:44:15 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* thread_native.h: added.
+	  Move native thread related lines from vm_core.h.
+	  And declare several functions "rb_nativethread_lock_*",
+	  manipulate locking.
+
+	* common.mk: add thread_native.h.
+
+	* thread.c: add functions "rb_nativethread_lock_*".
+
+	* thread.c, thread_[pthread,win32].[ch]: rename rb_thread_lock_t
+	  to rb_nativethread_lock_t to make it clear that this lock is for
+	  native threads, not for ruby threads.
+
+Tue Jul 23 16:14:57 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_before_sweep): fix spacing.
+
+Tue Jul 23 15:57:11 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (heap_get_freeobj): clear slot->freelist here.
+	  This means that this slot doesn't have any free objects.
+	  And store this slot with objspace->heap.using_slot.
+
+	* gc.c (gc_before_sweep): restore objspace->freelist
+	  into objspace->heap.using_slot->freelist.
+	  This means that using_slot has free objects which are
+	  pointed from objspace->freelist.
+
+	* gc.c (gc_slot_sweep): do not need to clear slot->freelist.
+
+Tue Jul 23 09:34:49 2013  Zachary Scott  <e@zzak.io>
+
+	* sample/drb/README*.rdoc: [DOC] migrate DRb sample READMEs to rdoc
+
+Tue Jul 23 09:28:05 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/drb/invokemethod.rb: [DOC] nodoc InvokeMethod18Mixin
+
+Tue Jul 23 08:44:37 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/openssl/ossl_asn1.c (asn1time_to_time):  Implement YYMMDDhhmmZ
+	  format for ASN.1 UTCTime.  [ruby-trunk - Bug #8664]
+	* test/openssl/test_asn1.rb:  Test for the above.
+
+Tue Jul 23 08:11:32 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/rexml/streamlistener.rb: [DOC] Fix examples in
+	  REXML::StreamListener#entitydecl patch by Ippei Obayashi [Bug #8665]
+
+Tue Jul 23 07:44:59 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Import RubyGems from master as of commit b165260
+	* test/rubygems:  ditto.
+
+Tue Jul 23 07:14:31 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mulsub_1xN): New function.
+	  (bary_mul_toom3): Use bary_mulsub_1xN.
+
+Tue Jul 23 03:32:23 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (KARATSUBA_BALANCED): New macro.
+	  (TOOM3_BALANCED): Ditto.
+	  (bary_mul_balance_with_mulfunc): Use KARATSUBA_BALANCED and
+	  TOOM3_BALANCED.
+	  (rb_big_mul_balance): Relax a condition.
+	  (rb_big_mul_karatsuba): Use KARATSUBA_BALANCED.
+	  (rb_big_mul_toom3): Use TOOM3_BALANCED.
+	  (bary_mul_karatsuba_branch): Use KARATSUBA_BALANCED.
+	  (bary_mul_toom3_branch): Use TOOM3_BALANCED.
+
+Tue Jul 23 01:34:45 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigdivrem_mulsub): Extracted from bigdivrem1.
+	  (bigdivrem1): Use bary_add.
+
+Mon Jul 22 18:39:52 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* string.c (rb_str_enumerate_chars): specify array capa
+	  with str_strlen().
+
+	* string.c (rb_str_enumerate_codepoints): ditto.
+
+Mon Jul 22 18:01:33 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* string.c (rb_str_enumerate_chars): specify array capa.
+
+Mon Jul 22 17:24:14 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* string.c (rb_str_each_char_size): performance improvement by
+	  using rb_str_length().
+
+Mon Jul 22 16:32:48 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (eval_string_with_cref): check by Check_TypedStruct
+	  instead of rb_obj_is_kind_of.
+
+Mon Jul 22 13:19:22 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (ary_resize_capa): use RARRAY_RAWPTR() because
+	  this code creates no new references.
+
+Mon Jul 22 12:58:18 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (ary_memfill): added.
+
+	* array.c (rb_ary_initialize): use ary_memfill().
+
+	* array.c (rb_ary_fill): ditto.
+
+	* array.c (rb_ary_slice_bang): use RARRAY_RAWPTR() because
+	  this code creates no new references.
+
+Mon Jul 22 10:09:46 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_slot_sweep): need to add empty RVALUE as freeobj.
+
+Mon Jul 22 09:48:31 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (eval_string_with_cref): use the given file name unless
+	  eval even if scope is given.  additional fix for [Bug #8436].
+	  based on the patch by srawlins at [ruby-core:56099] [Bug #8662].
+
+Mon Jul 22 09:24:19 2013  Kouji Takao  <kouji@takao7.net>
+
+	* ext/readline/readline.c (Init_readline): added
+	  Readline.delete_text. [ruby-dev:45789] [Feature #6626]
+	* ext/readline/extconf.rb: check for rl_delete_text() in Readline library.
+
+	  Thanks, Nobuyoshi Nakada, for the patch.
+
+Mon Jul 22 03:15:54 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/date/date_parse.c (rfc2822_cb): check if wday is given, since it
+	  can be omitted.
+
+Mon Jul 22 00:15:20 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_sq_fast): Refine expressions.
+
+Sun Jul 21 21:08:59 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mul): Use simple multiplication if yl is small.
+	  (rb_cstr_to_inum): Invoke bigsq instead of bigmul0.
+	  (bigsq): Re-implemented.
+	  (bigmul0): Invoke bigsq if two arguments are identical.
+
+Sun Jul 21 09:58:19 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mul_toom3): New function based on bigmul1_toom3.
+	  (bary_mul_toom3_branch): Call bary_mul_toom3.
+	  (rb_big_mul_toom3): Ditto.
+	  (bigmul1_toom3): Removed.
+	  (big_real_len): Ditto.
+	  (big_split): Ditto.
+	  (big_split3): Ditto.
+
+Sun Jul 21 08:12:16 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* proc.c (proc_to_s): use PRIsVALUE to preserve the result encoding.
+
+Sun Jul 21 03:36:18 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* hash.c (rb_hash_flatten): use NUM2INT to raise TypeError on 32bit
+	  platform. it's introduced by r42039
+
+Sun Jul 21 01:07:45 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* common.mk (help): Fix environment variable name and argument.
+	  Actually it can also be a directory or any argument for
+	  test/unit runner. [Fixes GH-363]
+
+Sat Jul 20 22:44:50 2013  Zachary Scott  <e@zzak.io>
+
+	* common.mk: Document running a single test [Fixes GH-363]
+	  Patch by Avdi Grimm https://github.com/ruby/ruby/pull/363
+
+Sat Jul 20 22:39:56 2013  Zachary Scott  <e@zzak.io>
+
+	* sample/*: whitespace patch by Sergio Campama [Fixes GH-364]
+	  https://github.com/ruby/ruby/pull/364
+
+Sat Jul 20 22:33:13 2013  Zachary Scott  <e@zzak.io>
+
+	* doc/regexp.rdoc: [DOC] Fix typo in example [Fixes GH-365]
+	  Patch by Juanito Fatas https://github.com/ruby/ruby/pull/365
+
+Sat Jul 20 17:46:03 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (rb_str_succ): add missing case NEIGHBOR_WRAPPED.
+	  r42078 caused buggy behavior like "\xFF".b -> "\x01\xFF".b
+
+Sat Jul 20 15:22:38 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (rb_ary_resize): use simple memcpy because there are no new
+	  references.
+
+Sat Jul 20 15:02:51 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* safe.c (ruby_safe_level_4_warning): define for old extension
+	  libraries.  [Bug #8652]
+
+Sat Jul 20 14:38:00 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (ary_make_shared): make shared array shady.
+	  Making non-shady shared array causes SEGV (see rubyci).
+	  It seems a bug around shared array.
+
+Sat Jul 20 12:14:07 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (enc_succ_char, enc_pred_char): consider wchar case.
+	  [ruby-core:56071] [Bug #8653]
+
+	* string.c (rb_str_succ): do not replace with invalid char.
+
+	* encoding.c (rb_enc_code_to_mbclen): add new function which returns
+	  mbclen from codepoint like as rb_enc_codelen() but 0 for invalid
+	  char.
+
+	* include/ruby/encoding.h (rb_enc_code_to_mbclen): declaration and
+	  shortcut macro.
+
+Fri Jul 19 21:59:12 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: declare type_name() at the beginning of file.
+
+Fri Jul 19 21:35:09 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c: reduce shady operations.
+
+	* array.c (rb_ary_modify, ary_make_partial, rb_ary_splice,
+	  rb_ary_replace, rb_ary_eql, rb_ary_compact_bang):
+	  use RARRAY_RAWPTR() instead of RARRAY_PTR().
+
+	* array.c (rb_ary_shift): use RARRAY_PTR_USE() without WB because
+	  there are not new relations.
+
+	* array.c (ary_ensure_room_for_unshift): ditto.
+
+	* array.c (rb_ary_sort_bang): ditto.
+
+	* array.c (rb_ary_delete_at): ditto.
+
+	* array.c (rb_ary_reverse_m): use RARRAY_RAWPTR() because
+	  there are not new relations.
+
+Fri Jul 19 20:58:20 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c: reduce shade operations.
+
+	* array.c (rb_ary_modify): use RARRAY_RAWPTR().
+
+	* array.c (ary_make_substitution, rb_ary_s_create, ary_make_partial,
+	  rb_ary_splice, rb_ary_resize, rb_ary_rotate_m, rb_ary_times):
+	  use ary_memcpy().
+
+Fri Jul 19 19:55:28 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (ary_mem_clear): added. This operation doesn't need WB
+	  because this operation creates a reference to Qnil.
+
+	* array.c (ary_make_shared, rb_ary_store, rb_ary_shift_m,
+	  rb_ary_splice, rb_ary_resize, rb_ary_fill): use ary_mem_clear()
+	  instead of rb_mem_clear().
+
+	* array.c (ary_make_shared): use RARRAY_RAWPTR() instead of RARRAY_PTR().
+
+Fri Jul 19 19:18:51 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c: fix commit miss.
+	  RGENGC_UNPROTECT_LOGGING should be 0.
+
+Fri Jul 19 19:15:30 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (rb_ary_resurrect): use RARRAY_RAWPTR() because there is no
+	  writing.
+
+	* array.c (rb_ary_new_from_values): use ary_memcpy().
+
+Fri Jul 19 19:07:31 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (ary_memcpy): add a function to copy VALUEs into ary
+	  with write barrier. If ary is promoted, use write barrier correctly.
+
+	* array.c (rb_ary_cat, rb_ary_unshift_m, rb_ary_dup,
+	  rb_ary_sort_bang, rb_ary_replace, rb_ary_plus): use ary_memcpy().
+
+Fri Jul 19 15:32:57 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (rb_ary_store): use RARRAY_PTR_USE() instead of RARRAY_PTR().
+	  Clearing memory space doesn't need WBs.
+
+Fri Jul 19 15:19:37 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (ary_ensure_room_for_push): use RARRAY_RAWPTR() instead of
+	  RARRAY_PTR. In this code, there are no "write" operation.
+
+	* array.c (rb_ary_equal): ditto.
+
+	* array.c (recursive_equal): ditto.
+
+Fri Jul 19 15:09:22 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c, internal.h (rb_gc_writebarrier_remember_promoted): add a new
+	  function to remember an specified object. This api is only
+	  experimental (strongly depend on WB/rgengc strategy).
+
+Fri Jul 19 14:56:00 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (ary_unprotect_logging): use (void *) for first parameter
+	  because VALUE is not defined before including ruby/ruby.h.
+
+Fri Jul 19 14:19:48 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* ext/pathname/pathname.c (path_inspect): use PRIsVALUE to preserve
+	  the result encoding.
+
+Fri Jul 19 12:35:41 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/socket/test_tcp.rb (test_initialize_failure): Use EADDRNOTAVAIL
+	  to test an error message generated by bind() failure.
+
+Fri Jul 19 11:27:38 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/racc/parser.rb: [DOC] Capitalize "Ruby" in documentation
+	  Patch by Dave Worth https://github.com/ruby/ruby/pull/341
+
+Fri Jul 19 11:26:28 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/psych/lib/psych*: [DOC] Capitalize "Ruby" in documentation
+	  Patch by Dave Worth https://github.com/ruby/ruby/pull/341
+
+Fri Jul 19 11:25:12 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/rdoc/*: [DOC] Capitalize "Ruby" in documentation
+	  Patch by Dave Worth https://github.com/ruby/ruby/pull/341
+
+Fri Jul 19 11:23:55 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/rubygems*: [DOC] Capitalize "Ruby" in documentation
+	  Patch by Dave Worth https://github.com/ruby/ruby/pull/341
+
+Fri Jul 19 11:16:54 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/set.rb (Set#to_set): Define Set#to_set so that aSet.to_set
+	  returns self. [Fixes GH-359]
+
+Fri Jul 19 11:10:23 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/rake/*: [DOC] Capitalize "Ruby" in documentation
+	  Patch by Dave Worth https://github.com/ruby/ruby/pull/341
+
+Fri Jul 19 01:04:14 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/-test-/bignum/intpack.c: Renamed from ext/-test-/bignum/pack.c.
+	  (Init_intpack): Renamed from Init_pack.
+	  Reported by Naohisa Goto.  [ruby-dev:47526] [Bug #8655]
+
+Fri Jul 19 00:54:27 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* test/ruby/test_array.rb (test_count): add a test case for #count
+	  with an argument. See Bug #8654.
+
+Thu Jul 18 23:45:06 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_eql): compare RARRAY_PTR() for performance
+	  improvement in case of that self and other are shared.
+
+Thu Jul 18 22:46:42 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/cgi.rb: [DOC] Capitalize "Ruby" in documentation [Fixes GH-341]
+	  Patch by Dave Worth https://github.com/ruby/ruby/pull/341
+	* lib/webrick.rb: ditto
+	* lib/scanf.rb: ditto
+	* lib/xmlrpc/config.rb: ditto
+	* lib/resolv.rb: ditto
+	* lib/e2mmap.rb: ditto
+	* lib/fileutils.rb: ditto
+	* lib/mkmf.rb: ditto
+	* lib/cgi/session.rb: ditto
+	* lib/yaml.rb: ditto
+	* lib/erb.rb: ditto
+	* lib/irb.rb: ditto
+	* lib/tracer.rb: ditto
+	* lib/net/http.rb: ditto
+	* ext/syslog/lib/syslog/logger.rb: ditto
+	* sample/pty/expect_sample.rb: ditto
+
+Thu Jul 18 21:30:50 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_sq_fast): Specialize the last iteration of the
+	  outer loop.
+	  (bigfixize): A condition simplified.
+
+Thu Jul 18 21:15:41 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_equal): compare RARRAY_PTR() for performance
+	  improvement in case of that self and other are shared.
+
+Thu Jul 18 20:44:51 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_fill): use memfill().
+
+Thu Jul 18 20:35:14 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* array.c (rb_ary_count): check length to avoid SEGV
+	  while iterating. Remove other pointer loop when arg is given.
+
+	* test/ruby/test_array.rb (test_count): add test for bug.
+	  [ruby-core:56072] [Bug #8654]
+
+Thu Jul 18 18:14:36 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_count): iterate items appropriately.
+	  [Bug #8654]
+
+Thu Jul 18 17:35:41 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (rb_hash_flatten): performance improvement by not using
+	  rb_hash_to_a() to avoid array creation with rb_assoc_new().
+
+Thu Jul 18 16:16:17 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c: add logging feature for RGenGC's write barrier unprotect
+	  event.
+
+Thu Jul 18 15:45:47 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (RUBY_SAFE_LEVEL_CHECK): make only
+	  rb_set_safe_level(4) an error always but make rb_secure(4) an error
+	  only in the core.  [ruby-dev:47517] [Bug #8652]
+
+Thu Jul 18 15:42:01 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: fix spell miss.
+
+Thu Jul 18 15:11:11 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (ruby_safe_level_4): get rid of special
+	  character.  [ruby-dev:47512] [misc #8646]
+
+Thu Jul 18 14:51:39 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (ary_alloc): slim setup process.
+
+Thu Jul 18 14:37:57 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* string.c (str_alloc): no need to clear RString (already cleared).
+
+Thu Jul 18 12:57:47 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (BDIGITS_ZERO): Defined.
+	  (bary_pack): Use BDIGITS_ZERO.
+	  (bary_unpack): Ditto.
+	  (bary_mul_single): Ditto.
+	  (bary_mul_normal): Ditto.
+	  (bary_sq_fast): Ditto.
+	  (bary_mul_balance_with_mulfunc): Ditto.
+	  (bary_mul_precheck): Ditto.
+	  (bary_mul_toom3_branch): Ditto.
+	  (rb_cstr_to_inum): Ditto.
+	  (big_shift3): Ditto.
+	  (bigmul1_toom3): Ditto.
+	  (bary_divmod): Ditto.
+
+Thu Jul 18 06:30:02 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: rename gc related functions with prefix "gc_".
+	  * before_gc_sweep() -> gc_before_sweep().
+	  * after_gc_sweep()  -> gc_after_sweep().
+	  * lazy_sweep()      -> gc_lazy_sweep().
+	  * rest_sweep()      -> gc_rest_sweep().
+	  * slot_sweep()      -> gc_slot_sweep().
+
+	* gc.c: rename a heap management function with prefix "heap_".
+	  * get_freeobj() -> heap_get_freeobj().
+
+	* gc.c: rename markable_object_p() to is_markable_object().
+
+Wed Jul 17 22:57:40 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (delete_if_i): use ST_DELETE.
+
+Wed Jul 17 22:34:47 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c: An static assertion for relation of SIZEOF_LONG and
+	  SIZEOF_BDIGITS is added.
+	  (bary_mul_precheck): Reduce comparisons.
+	  (bary_mul): Invoke bary_sq_fast or bary_mul1 if the bignum size is
+	  small.
+	  (bigfixize): Resize the argument bignum here.
+	  (bignorm): Don't call bigtrunc after bigfixize.
+
+Wed Jul 17 22:13:26 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (rb_hash_replace): performance improvement by using
+	  st_copy().
+
+Wed Jul 17 17:19:54 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: rename heap management functions with prefix "heap_".
+	  * allocate_sorted_array() -> heap_allocate_sorted_array().
+	  * slot_add_freeobj()      -> heap_slot_add_freeobj().
+	  * assign_heap_slot()      -> heap_assign_slot().
+	  * add_heap_slots()        -> heap_add_slots().
+	  * init_heap()             -> heap_init().
+	  * set_heap_increment()    -> heap_set_increment().
+
+	* gc.c (initial_expand_heap): inlined in rb_gc_set_params().
+
+Wed Jul 17 17:12:23 2013  Matthew M. Boedicker  <matthewm@boedicker.org>
+
+	* hash.c (env_fetch): Add key name to message on ENV.fetch KeyError,
+	  as well as Hash#fetch.  [ruby-core:56062] [Feature #8649]
+
+Wed Jul 17 15:59:33 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: catch up last changes for debugging/checking mode.
+
+Wed Jul 17 15:50:10 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_objspace_free): free slot itself.
+
+	* gc.c (objspace_each_objects): fix condition.
+	  Use slot->body instead of slot.
+
+	* gc.c (count_objects): use "slot" variable.
+
+Wed Jul 17 15:21:10 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (unlink_heap_slot): fix memory leak.
+	  free slot itself at free_heap_slot().
+
+	  Reproduce-able code is here:
+	    N1 = 100_000; N2 = 1_000_000
+	    N1.times{ary = []; N2.times{ary << ''}}
+	  Maybe this problem is remaining in Ruby 2.0.0.
+
+	* gc.c (unlink_heap_slot): remove not working code.
+
+Wed Jul 17 14:31:13 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: re-design the heap structure.
+
+	  (1) The heap is consists of a set of slots.
+	  (2) Each "slot" has a "slot_body".
+	      slot::start and slot::limit specify RVALUE beginning address
+	      and number of RVALUE in a "slot_body".
+	  (3) "slot_body" contains a pointer to slot (slot_body::header::slot)
+	      and an array of RVALUE.
+	  (4) heap::sorted is an array of "slots", sorted by an address of
+	      slot::body.
+
+	  See https://bugs.ruby-lang.org/projects/ruby-trunk/wiki/GC_design
+	  for more details (figure).
+
+	* gc.c: Avoid "heaps" terminology. It is ambiguous.
+
+Wed Jul 17 13:29:16 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: fix heaps_header and heaps_slot to reduce memory consumption.
+	  (1) move heaps_header::start and limit to  heaps_slot.
+	  (2) remove heaps_header::end which can be calculated by start+limit.
+
+	* gc.c: catch up above change.
+
+Wed Jul 17 12:30:05 2013  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/st.h (st_strcasecmp): Macro defined for compatibility.
+	  (st_strncasecmp): Ditto.
+
+Wed Jul 17 11:57:45 2013  Takeyuki FUJIOKA  <xibbar@ruby-lang.org>
+
+	* lib/cgi/util.rb (CGI::Util#escape, unescape): Avoid use of regexp
+	  special global variable. [Feature #8648] Thanks to fotos.
+
+Wed Jul 17 11:57:10 2013  Takeyuki FUJIOKA  <xibbar@ruby-lang.org>
+
+	* lib/erb.rb (ERB::Util#url_encode): Avoid use of regexp special global
+	  variable. [Feature #8648] Thanks to fotos.
+
+Wed Jul 17 08:12:41 2013  Tanaka Akira  <akr@fsij.org>
+
+	* st.c (st_locale_insensitive_strcasecmp): Renamed from st_strcasecmp.
+	  (st_locale_insensitive_strncasecmp): Renamed from st_strncasecmp.
+
+	* include/ruby/st.h: Follow above changes.
+
+	* include/ruby/ruby.h: Ditto.
+
+Wed Jul 17 00:14:59 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigmul1_toom3): Use bigdivrem_single instead of bigdivrem.
+	  (big_three): Removed.
+	  (Init_Bignum): Don't initialize big_three.
+
+Tue Jul 16 21:46:03 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* configure.in: revert r42008. strcasecmp() uses the current locale.
+
+	* include/ruby/ruby.h: ditto.
+
+	* st.c (st_strcasecmp): ditto.
+
+Tue Jul 16 21:07:04 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* configure.in: check strcasecmp().
+
+	* include/ruby/ruby.h: use strcasecmp() as st_strcasecmp() if it
+	  exists.
+
+	* st.c (st_strcasecmp): define the function only if strcasecmp()
+	  doesn't exist.
+
+Tue Jul 16 20:21:28 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigsq): Renamed from bigsqr.
+
+Tue Jul 16 19:42:08 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (USHORT): Unused macro removed.
+
+Tue Jul 16 19:18:51 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: slim a path of newobj_of().
+
+	* gc.c (objspace): add a new field objspace::freelist, which contains
+	  available RVALUEs.
+
+	* gc.c (newobj_of): simply call new function `get_freeobj()'.
+	  get_freeobj() returns objspace::freelist. If  objspace::freelist
+	  is not available, refill objspace::freelist with a slot pointed by
+	  objspace::heap::free_slots.
+
+	* gc.c (before_gc_sweep): clear objspace::freelist.
+
+	* gc.c (slot_sweep): clear slot::freelist.
+
+	* gc.c (heaps_prepare_freeslot): renamed to heaps_prepare_freeslot.
+
+	* gc.c (unlink_free_heap_slot): remove unused function.
+
+	* gc.c (rb_free_const_table): remove unused function.
+
+Tue Jul 16 19:05:12 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big_shift3): Big shift width is not a problem for right
+	  shift.
+
+Tue Jul 16 18:50:08 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_count): [DOC] fix typo.  Array#count uses ==, not
+	  ===.  a question at asakusa.rb ML.
+
+Tue Jul 16 18:35:48 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mul_karatsuba): Avoid duplicate calculation when
+	  squaring.
+	  (bary_mul_toom3_branch): Ditto.
+
+Tue Jul 16 17:43:22 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (link_free_heap_slot): removed.
+
+	* gc.c (slot_sweep): use `heaps_add_freeslot' instead of
+	  `link_free_heap_slot'.
+
+	* gc.c (assign_heap_slot): use local variable `slot' instead of
+	  `heaps'.
+
+Tue Jul 16 17:21:39 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (assign_heap_slot): refactoring variable names.
+
+	* gc.c (slot_add_freeobj): added.
+
+	* gc.c (heaps_add_freeslot): added.
+
+	* gc.c (finalize_list, rb_gc_force_recycle, slot_sweep): use
+	  `slot_add_freeobj' instead of modifying linked list directly.
+
+Tue Jul 16 16:30:58 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (lazy_sweep): refactoring.
+
+Tue Jul 16 13:32:06 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* encoding.c (enc_set_index): since r41967, old terminator is dealt
+	  with in str_fill_term().  should not consider it here because this
+	  function is called before any encoding is set.
+
+Tue Jul 16 11:12:03 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* proc.c (rb_block_arity): raise ArgumentError if no block given.
+
+Tue Jul 16 08:15:22 2013  Zachary Scott  <e@zzak.io>
+
+	* ext/bigdecimal/lib/bigdecimal/util.rb: [DOC] document top-level
+	  classes from BigDecimal utils native extensions
+
+Tue Jul 16 03:23:03 2013  Zachary Scott  <e@zzak.io>
+
+	* numeric.c: [DOC] improve rdoc formatting for parameters and links
+
+Mon Jul 15 14:40:00 2013  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/intern.h (rb_big2str0): Deprecated.
+
+	* bignum.c (rb_big2str1): Renamed from rb_big2str0.
+	  (rb_big2str0): Deprecated wrapper for rb_big2str1.
+	  (rb_big2str): Invoke rb_big2str1 instead of rb_big2str0.
+
+Mon Jul 15 14:13:02 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* struct.c (rb_struct_each_pair): use rb_yield_values(2, key, value)
+	  instead of rb_yield(rb_assoc_new(key, value)) if rb_block_arity()
+	  is greater than 1.
+
+Mon Jul 15 13:46:26 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c: Add static assertions.
+
+Mon Jul 15 13:36:02 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (rb_hash_each_pair): performance improvement by using
+	  rb_block_arity().
+
+Mon Jul 15 13:15:37 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* proc.c (rb_block_arity): create internal API rb_block_arity().
+	  it returns arity of given block.
+
+Mon Jul 15 13:07:27 2013  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* lib/prime.rb (Prime::EratosthenesGenerator,
+	  Prime::EratosthenesSieve): New implementation by
+	  robertjlooby <robertjlooby AT gmail.com>.
+
+	* test/test_prime.rb: updated with new method name
+
+Mon Jul 15 11:32:46 2013  Zachary Scott  <e@zzak.io>
+
+	* numeric.c (rb_cNumeric): [DOC] Added comment for Numeric to fix doc
+
+Mon Jul 15 11:24:48 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (maxpow_in_bdigit_dbl): Useless #if removed.
+
+Mon Jul 15 11:10:46 2013  Zachary Scott  <e@zzak.io>
+
+	* bignum.c (rb_big_coerce): [DOC] Add docs for Bignum#coerce
+	  Based on patch by Juanito Fatas [Fixes GH-360]
+	  https://github.com/ruby/ruby/pull/360
+
+Mon Jul 15 10:56:01 2013  Zachary Scott  <e@zzak.io>
+
+	* thread.c (mutex_sleep): [DOC] Awake thread will reacquire lock
+	  By Tim Abdulla [Fixes GH-342] https://github.com/ruby/ruby/pull/342
+
+Mon Jul 15 10:45:09 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (nlz16): Use __builtin_clz if possible.
+	  (nlz32): Use __builtin_clz or __builtin_clzl if possible.
+	  (nlz64): Use __builtin_clzl or __builtin_clzll if possible.
+	  (nlz128): Use __builtin_clzll if possible.
+
+	* configure.in: Check __builtin_clz, __builtin_clzl and
+	  __builtin_clzll.
+
+Mon Jul 15 09:39:07 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (power_cache_get_power): Use bitsize instead of ceil_log2.
+	  (ones): Removed.
+	  (next_pow2): Removed.
+	  (floor_log2): Removed.
+	  (ceil_log2): Removed.
+
+	* configure.in (__builtin_popcountl): Don't check.
+
+Mon Jul 15 02:47:09 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* localeinit.c (rb_locale_charmap, Init_enc_set_filesystem_encoding):
+	  move from encoding.c.
+
+	* miniinit.c (rb_locale_charmap, Init_enc_set_filesystem_encoding):
+	  define miniruby specific functions only.
+
+Mon Jul 15 02:32:58 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* encoding.c (rb_enc_init): no longer needs NO_PRESERVED_ENCODING.
+
+	* encoding.c (enc_inspect): defer loading autoloaded encoding.
+
+	* encoding.c (enc_check_encoding): use is_data_encoding() to check
+	  type consistently.
+
+	* encoding.c (must_encoding): return rb_encoding* instead of encoding
+	  index.
+
+	* encoding.c (enc_check_encoding): use is_data_encoding() to check
+	  type consistently.
+
+	* encoding.c (must_encoding): return rb_encoding* instead of encoding
+	  index.
+
+Mon Jul 15 02:21:39 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (str_fill_term): consider old terminator length, and should
+	  not use rb_enc_ascget since it depends on the current encoding which
+	  may not be compatible with the new terminator.  [Bug #8634]
+
+	* encoding.c (enc_inspect): use PRIsVALUE to preserve the result
+	  encoding.
+
+Sun Jul 14 23:21:47 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Check __builtin_popcountl, __builtin_bswap32 and
+	  __builtin_bswap64.
+
+	* internal.h (swap32): Use the configure result for the condition to
+	  use __builtin_bswap32.
+	  (swap64): Use the configure result for the condition to use
+	  __builtin_bswap64.
+
+	* bignum.c (ones): Use the configure result for the condition to use
+	  __builtin_popcountl.
+	  (bary_unpack_internal): Use appropriate types for swap argument.
+
+Sun Jul 14 22:21:11 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_subb): Support xn < yn.
+	  (bigsub_core): Removed.
+	  (bigsub): Don't compare before subtraction.  Just subtract and
+	  get the two's complement if the subtraction causes a borrow.
+
+Sun Jul 14 00:36:03 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (DIGSPERLONG): Unused macro removed.
+	  (DIGSPERLL): Ditto.
+
+Sun Jul 14 00:32:51 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big_aref): Less scan when the number is negative.
+
+Sun Jul 14 00:17:42 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big_shift): Avoid signed integer overflow.
+
+Sun Jul 14 00:14:15 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mul_precheck): Use bary_small_lshift or
+	  bary_mul_normal if xl is 1.
+
+Sat Jul 13 22:58:16 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big_shift3): New function.
+	  big_lshift and big_rshift are merged.
+	  (big_shift2): New function.
+	  (big_lshift): Use big_shift3.
+	  (big_rshift): Ditto.
+	  (check_shiftdown): Removed.
+	  (rb_big_lshift): Use big_shift2 and big_shift3.
+	  (rb_big_rshift): Ditto.
+	  (big_lshift): Removed.
+	  (big_rshift): Ditto.
+
+Sat Jul 13 15:51:38 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_small_lshift): Use size_t instead of long.
+	  (bary_small_rshift): Ditto.
+
+Sat Jul 13 15:33:33 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_small_lshift): Functions moved to remove
+	  declaration.
+	  (bary_small_rshift): Ditto.
+
+Sat Jul 13 12:27:34 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* encoding.c (rb_enc_associate_index): fill new terminator length, not
+	  old one.
+
+Sat Jul 13 12:24:24 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/win32: move from ext/dl and ext/fiddle.  since ext/extmk.rb
+	  builds extensions in alphabetical order, compiled?('fiddle') under
+	  ext/dl makes no sense.
+
+Sat Jul 13 09:26:09 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (biglsh_bang): Removed.
+	  (bigrsh_bang): Ditto.
+	  (bigmul1_toom3): Use bary_small_lshift and bary_small_rshift.
+
+Sat Jul 13 01:04:43 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/rubygems/psych_additions.rb: Ignore Psych docs here
+
+Fri Jul 12 18:10:46 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/fiddle/win32/lib/win32/registry.rb
+	  (Win32::Registry::API#make_wstr): same as r41922.
+
+Fri Jul 12 16:28:37 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* encoding.c (rb_enc_associate_index): refill the terminator if it
+	  becomes longer than before.  [ruby-dev:47500] [Bug #8624]
+
+	* string.c (str_null_char, str_fill_term): get rid of out of bound
+	  access.
+
+	* string.c (rb_str_fill_terminator): add a parameter for the length of
+	  new terminator.
+
+Fri Jul 12 11:26:25 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (rb_hash_reject_bang): do not call rb_hash_foreach() if RHash
+	  has ntbl and it is empty.
+
+Fri Jul 12 11:17:41 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (recursive_hash): use RHASH_SIZE() to check hash size.
+
+Fri Jul 12 00:20:00 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (rb_hash_size): use RHASH_SIZE().
+
+Fri Jul 12 00:08:24 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (rb_hash_values): set array capa to RHASH_SIZE().
+
+Thu Jul 11 23:54:45 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (rb_hash_keys): set array capa to RHASH_SIZE().
+
+Thu Jul 11 21:30:17 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_pow): undef pow to get rid of infinite
+	  recursive call.  re-fix [Bug #8495].  [ruby-core:55923] [Bug #8621]
+
+Thu Jul 11 20:18:13 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/dl/win32/lib/win32/registry.rb (Win32::Registry::API#make_wstr):
+	  remove workaround to append WCHAR terminator.
+
+	* transcode.c (str_encode_associate): fill terminator after conversion.
+
+	* string.c (rb_enc_str_new, rb_str_set_len, rb_str_resize): fill
+	  minimum length of the encoding as the terminator.
+
+	* string.c (str_buf_cat, rb_str_buf_append, rb_str_splice_0): ditto.
+
+	* string.c (str_make_independent_expand, rb_str_modify_expand): make
+	  the capacity enough for multi-byte terminator.
+
+	* string.c (rb_string_value_cstr): fill minimum length of the encoding
+	  as the terminator.
+
+	* string.c (rb_string_value_cstr): check null char in char, not in
+	  byte.
+
+Thu Jul 11 14:48:35 2013  Zachary Scott  <e@zzak.io>
+
+	* array.c: Replace confusing example for #reverse_each in overview
+	  Patch by Earl St Sauver [Fixes documenting-ruby/ruby-12]
+	  https://github.com/documenting-ruby/ruby/pull/12
+
+Thu Jul 11 14:22:37 2013  Zachary Scott  <e@zzak.io>
+
+	* test/drb/ut_eq.rb: Use localhost for drb tests [Bug #7311]
+	  Patch by Vit Ondruch [ruby-core:49101]
+	* test/drb/ut_array.rb: ditto
+	* test/drb/ut_array_drbssl.rb: ditto
+
+Thu Jul 11 13:48:03 2013  Zachary Scott  <e@zzak.io>
+
+	* sprintf.c: Fix typo patch by @hynkle [Fixes GH-357]
+	  https://github.com/ruby/ruby/pull/357
+
+Thu Jul 11 13:00:34 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/securerandom.rb: Refactor conditions by Rafal Chmiel
+	  [Fixes GH-326] https://github.com/ruby/ruby/pull/326
+
+Thu Jul 11 12:04:47 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c: Don't use toom3 after once karatsuba is chosen.
+	  (mulfunc_t): New type.
+	  (bary_mul_toom3_start): Renamed from bary_mul.
+	  (bary_mul_karatsuba_start): Renamed from bary_mul.
+	  (bary_mul_balance_with_mulfunc): Renamed from bary_mul_balance and
+	  new argument, mulfunc, is added.
+	  (rb_big_mul_balance): Invoke bary_mul_balance_with_mulfunc with
+	  bary_mul_toom3_start.
+	  (bary_mul_karatsuba): Invoke bary_mul_karatsuba_start instead of
+	  bary_mul.
+	  (bary_mul_precheck): Extracted from bary_mul.
+	  (bary_mul_karatsuba_branch): Extracted from bary_mul.
+	  (bary_mul_karatsuba_start): New function to call bary_mul_precheck
+	  and bary_mul_karatsuba_branch.
+	  (bary_mul_toom3_branch): Extracted from bary_mul.
+	  (bary_mul_toom3_start): New function to call bary_mul_precheck and
+	  bary_mul_toom3_branch.
+	  (bary_mul): Just call bary_mul_toom3_start.
+	  Arguments for work memory are removed.
+	  (rb_cstr_to_inum): Follow the bary_mul change.
+	  (bigmul0): Ditto.
+
+Thu Jul 11 10:46:38 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/probes_to_wiki.rb: fix usage comment.  use Enumerable#grep
+	  which yields each elements to reduce unnecessary array.
+
+Thu Jul 11 10:09:18 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* process.c (rb_daemon): daemon(3) is implemented with fork(2).
+	  Therefore it needs rb_thread_atfork(). (and revert r41903)
+
+Thu Jul 11 03:22:10 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* tool/probes_to_wiki.rb: adding a script to convert probes.d to wiki
+	  format for easy wiki updates.
+
+Thu Jul 11 00:54:07 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* man/ri.1: Incorrect use of .Dd macro [Bug #8620] by Tristan Hill
+
+Thu Jul 11 00:48:29 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/delegate.rb: Add example for __setobj__ and __getobj__
+	  [Bug #8615] Patch by Caleb Thompson
+
+Wed Jul 10 23:29:22 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/logger.rb: Use :call-seq: for method signature rdoc
+
+Wed Jul 10 23:23:18 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/logger.rb (#add): Remove incorrect rdoc for return value
+	  [Bug #8567] Reported by Tim Pease.
+
+Wed Jul 10 23:12:00 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_subpos): make public function.
+
+Wed Jul 10 22:44:19 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c: Add a static assertion for RBIGNUM_EMBED_LEN_MAX.
+
+Wed Jul 10 22:31:25 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* string.c (rb_str_index): cache single byte flag and some
+	  cosmetic changes.
+
+Wed Jul 10 22:03:27 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_2comp): Don't use bary_plus_one.
+	  (bary_add_one): Replaced by the implementation of bary_plus_one.
+
+Wed Jul 10 20:48:22 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* bignum.c (sizeof_bdigit_dbl): check sizeof(BDIGIT_DBL).
+
+	* internal.h (STATIC_ASSERT): move from enum.c.
+
+Wed Jul 10 20:08:21 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (SIZEOF_BDIGIT_DBL): Add a ifdef guard for test.
+
+Wed Jul 10 14:18:59 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (fork_daemon): kill the other threads all and abandon the
+	  kept mutexes.
+
+Wed Jul 10 11:35:36 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/net/http/test_http.rb (TestNetHTTP_v1_2#test_get,
+	  TestNetHTTP_v1_2_chunked#test_get): shouldn't check
+	  HttpResponse#decode_content if Zlib is not available.
+	  ko1 complained via IRC.
+
+Wed Jul 10 10:20:07 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/rbinstall.rb: always require rubygems to stabilize rubygems
+	  related status like whether Gem::Specification is defined or not.
+
+	* tool/rbinstall.rb (Gem::Specification.unresolved_deps): define stub.
+
+Wed Jul 10 08:21:15 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Import RubyGems 2.1
+	* test/rubygems:  Ditto.
+
+Wed Jul 10 07:34:34 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/ext/ext_conf_builder.rb:  Remove siteconf file after
+	  building the gem.
+	* test/rubygems/test_gem_ext_ext_conf_builder.rb:  Test for the above.
+
+	* lib/rubygems/psych_tree.rb (module Gem):  Add backward compatibility
+	  for r41148
+
+	* test/rubygems/test_gem_package.rb:  Add backward compatibility for
+	  double-slash elimination.
+
+Wed Jul 10 06:22:27 2013  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_parse.c (date_zone_to_diff): [ruby-core:55831].
+
+Wed Jul 10 00:41:42 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mul): x*1 is x.
+
+Tue Jul  9 22:24:39 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mul1): No need to invoke MEMZERO at last.
+	  (bary_mul_single): Invoke MEMZERO here.
+
+Tue Jul  9 21:40:01 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_text.rb: Add missing tests for Text#<<.
+	  Reported by nagachika. Thanks!!!
+
+Tue Jul  9 18:02:38 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/fileutils.rb (FileUtils#chown_R): Do not skip traversal even
+	  if user and group are both nil, to be consistent with #chown and
+	  other commands.
+
+Tue Jul  9 17:58:26 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* test/fileutils/test_fileutils.rb
+	  (TestFileUtils#assert_output_lines): New utility assertion
+	  method for testing verbose output.
+
+Tue Jul  9 17:43:57 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* test/test_tracer.rb: catch up recent rubygems changes.
+
+Tue Jul  9 16:58:30 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/{dl,fiddle}/win32/lib/win32/registry.rb: hope that the final
+	  resolution to fix the failure of test-all.  and includes Win64
+	  support (fixed a potential bug).
+
+Tue Jul  9 15:57:20 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* object.c: Fix rdoc for Kernel#<=>. [Fixes GH-352]
+
+Tue Jul  9 15:53:51 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/fileutils.rb (FileUtils#mode_to_s): Define mode_to_s() also
+	  as singleton method, or FileUtils.chmod fails in verbose mode.
+
+Tue Jul  9 15:16:02 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* test/fileutils/fileasserts.rb
+	  (Test::Unit::FileAssertions#assert_not_symlink): Add a missing
+	  optional argument "message".
+
+Tue Jul  9 15:03:24 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/fileutils.rb (FileUtils#chown, FileUtils#chown_R): If user
+	  and group are both nil, print ":".
+
+Tue Jul  9 12:47:08 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* io.c (appendline): use READ_CHAR_PENDING_XXX macros and
+	  RSTRING_END().
+
+	* io.c (rb_io_getline_1): rewrite nested if statement into one
+	  statement.
+
+Tue Jul  9 11:04:35 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/{dl,fiddle}/win32/lib/win32/registry.rb (Win32::Registry#check):
+	  should report the position of the error.
+
+	* ext/{dl,fiddle}/win32/lib/win32/registry.rb
+	  (Win32::Registry#QueryValue): workaround for test-all crash.
+
+Tue Jul  9 10:27:56 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/{dl,fiddle}/win32/lib/win32/registry.rb
+	  (Win32::Registry.expand_environ): use suitable encoding for the
+	  string.
+
+	* ext/{dl,fiddle}/win32/lib/win32/registry.rb (Win32::Registry#read):
+	  should return REG_SZ, REG_EXPAND_SZ and REG_MULTI_SZ values with
+	  the expected encoding -- assumed as the same encoding of name.
+
+Tue Jul  9 10:02:45 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/{dl,fiddle}/win32/lib/win32/registry.rb
+	  (Win32::Registry::Error#initialize): use suitable encoding for the
+	  string.
+
+Tue Jul  9 09:46:53 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/dl/win32/lib/win32/registry.rb (Win32::Registry.expand_environ):
+	  use suitable encoding for the string.  fixed a test-all error of
+	  r41838.
+
+	* ext/fiddle/win32/lib/win32/registry.rb: same changes of r41838 and
+	  this revision of dl's win32/registry.rb.
+
+Tue Jul  9 07:39:45 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems 2.0.4.  See
+	  https://github.com/rubygems/rubygems/blob/2.0/History.txt for changes
+
+Tue Jul  9 01:47:16 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (biglsh_bang): Don't shift a BDIGIT with BITSPERDIG bits.
+	  (bigrsh_bang): Ditto.
+
+Tue Jul  9 01:17:57 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigrsh_bang): Fix bignum digits overrun.
+
+Tue Jul  9 00:46:22 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (biglsh_bang): Fix bignum digits under-run.
+
+Mon Jul  8 23:36:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/dl/win32/lib/win32/registry.rb (Error, API): use WCHAR
+	  interfaces.  c.f. [Bug #8508]
+
+Mon Jul  8 23:13:11 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_pow): move from win32.h and disable strict
+	  ANSI mode macro to let _controlfp() stuff defined.
+	  [ruby-core:55312] [Bug #8495]
+
+	* numeric.c (finite): add declaration for strict ANSI.
+	  [ruby-core:55312] [Bug #8495]
+
+	* thread_win32.c (w32_thread_start_func, thread_start_func_1),
+	  (timer_thread_func): use __stdcall instead of _stdcall which is
+	  unavailable in strict ANSI mode.  [ruby-core:55312] [Bug #8495]
+
+	* win32/win32.c (gettimeofday): use __cdecl instead of _cdecl.
+
+Mon Jul  8 22:41:12 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mul): Arguments for work memory added.
+	  (bary_mul_balance): Ditto.
+	  (bary_mul_karatsuba): Ditto.
+
+Mon Jul  8 22:03:30 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big_sq_fast): New function for testing.
+	  (rb_big_mul_toom3): Ditto.
+
+	* internal.h (rb_big_sq_fast): Declared.
+	  (rb_big_mul_toom3): Ditto.
+
+Mon Jul  8 21:59:34 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mul_balance): Initialize a local variable to suppress
+	  a warning.
+
+Mon Jul  8 20:55:22 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mul_balance): Reduce work memory.
+
+Mon Jul  8 08:26:15 2013  Martin Bosslet  <Martin.Bosslet@gmail.com>
+
+	* test/openssl/test_pkey_ec.rb: Skip tests for "Oakley" curves as
+	  they are not suitable for ECDSA.
+	  [ruby-core:54881] [Bug #8384]
+
+Mon Jul  8 08:03:01 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mul): Add a RB_GC_GUARD.
+
+Sun Jul  7 23:56:32 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mul_karatsuba): Unreachable code removed.  Remove
+	  several branches.
+
+Sun Jul  7 22:59:06 2013  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (rb_big_mul_normal): Declared.
+	  (rb_big_mul_balance): Ditto.
+	  (rb_big_mul_karatsuba): Ditto.
+
+	* bignum.c (rb_big_mul_normal): New function for tests.
+	  (rb_big_mul_balance): Ditto.
+	  (rb_big_mul_karatsuba): Ditto.
+
+Sun Jul  7 19:21:30 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c: Reorder functions to decrease forward reference.
+
+Sun Jul  7 14:41:57 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c: (bigsub_core): Use bary_sub.
+	  (bary_sub): Returns a borrow flag.  Use bary_subb.
+	  (bary_subb): New function for actually calculating subtraction with
+	  borrow.
+	  (bary_sub_one): New function.
+	  (bigadd_core): Use bary_add.
+	  (bary_add): Returns a carry flag.  Use bary_addc.
+	  (bary_addc): New function for actually calculating addition with
+	  carry.
+	  (bary_add_one): New function.
+	  (bary_muladd_1xN): Extracted from bary_mul_normal.
+	  (bigmul1_normal): Removed.
+	  (bary_mul_karatsuba): New function.
+	  (bary_mul1): Invoke rb_thread_check_ints after bary_mul_normal.
+	  (bary_mul): Remove most and least significant zeros before actual
+	  multiplication.  Use bary_sq_fast, bary_mul_balance,
+	  bary_mul_karatsuba and bigmul1_toom3 as bigmul0.
+	  (bigmul1_balance): Removed.
+	  (bigmul1_karatsuba): Removed.
+	  (bigsqr_fast): Removed.
+	  (bary_sparse_p): Extracted from big_sparse_p.
+	  (big_sparse_p): Removed.
+	  (bigmul0): Use bary_mul.
+
+Sun Jul  7 11:54:33 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* NEWS: Add REXML::Text#<< related updates.
+
+Sun Jul  7 11:49:19 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/text.rb (REXML::Text#<<): Support appending in not
+	  "raw" mode. [Bug #8602] [ruby-dev:47482]
+	  Reported by Ippei Obayashi. Thanks!!!
+
+Sun Jul  7 11:43:13 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/text.rb (REXML::Text#<<): Support method chain use by "<<"
+	  like other objects.
+
+Sun Jul  7 11:34:18 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/text.rb (REXML::Text#clear_cache): Extract common
+	  cache clear code.
+
+Sun Jul  7 11:01:03 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (RUBY_DTRACE_POSTPROCESS): dtrace version SUN D 1.11
+	  introduces a check in the dtrace compiler to ensure that probes
+	  actually exist. If there are no probes, then the -G step will
+	  fail. As this test is only being used to determine whether -G is
+	  necessary (for instance, on OSX it is not), adding a real probe to
+	  the conftest allows it to succeed on newer versions of dtrace.
+	  Patch by Eric Saxby <sax AT livinginthepast.org> at
+	  [ruby-core:55826].  [Fixes GH-351], [Bug #8606].
+
+Sun Jul  7 10:07:22 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_sq_fast): Extracted from bigsqr_fast and
+	  ensure not to access zds[2*xn].
+	  (bigsqr_fast): Allocate the result bignum with 2*xn words.
+
+Sat Jul  6 07:37:43 2013  Martin Bosslet  <Martin.Bosslet@gmail.com>
+
+	* ext/openssl/ossl_pkey_ec.c: Ensure compatibility to builds of
+	  OpenSSL with OPENSSL_NO_EC2M defined, but OPENSSL_NO_EC not
+	  defined.
+	* test/openssl/test_pkey_ec.rb: Iterate over built-in curves
+	  (and assert their non-emptiness!) instead of hard-coding them, as
+	  this may cause problems with respect to the different availability
+	  of individual curves in individual OpenSSL builds.
+	  [ruby-core:54881] [Bug #8384]
+
+	  Thanks to Vit Ondruch for providing the patch!
+
+Sat Jul  6 07:12:39 2013  Martin Bosslet  <Martin.Bosslet@gmail.com>
+
+	* test/openssl/test_x509crl.rb: Remove unused variable.
+	  [ruby-core:53501] [Bug #8114]
+
+	  Thanks, Vipul Amler, for pointing this out!
+
+Sat Jul  6 06:37:10 2013  Martin Bosslet  <Martin.Bosslet@gmail.com>
+
+	* ext/openssl/ossl.c: Provide CRYPTO_set_locking_callback() and
+	  CRYPTO_set_id_callback() callback functions ossl_thread_id and
+	  ossl_lock_callback to ensure the OpenSSL extension is usable in
+	  multi-threaded environments.
+	  [ruby-core:54900] [Bug #8386]
+
+	  Thanks, Dirkjan Bussink, for the patch!
+
+Sat Jul  6 06:06:16 2013  Martin Bosslet  <Martin.Bosslet@gmail.com>
+
+	* lib/openssl/ssl.rb: Fix SSL client connection crash for SAN marked
+	  critical.
+	  The patch for CVE-2013-4073 caused SSL crash when a SSL server returns
+	  the certificate that has critical SAN value.  X509 extension could
+	  include 2 or 3 elements in it:
+
+	  [id, criticality, octet_string] if critical,
+	  [id, octet_string] if not.
+
+	  Making sure to pick the last element of X509 extension and use it as
+	  SAN value.
+	  [ruby-core:55685] [Bug #8575]
+
+	  Thank you @nahi for providing the patch!
+
+Sat Jul  6 04:49:38 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: register time objects so
+	  they are referenced as ids during output.
+	* test/psych/test_date_time.rb: corresponding test.
+
+Fri Jul  5 20:46:39 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_unicode_escape.rb (TestUnicodeEscape#test_basic): this
+	  assertion doesn't seems to be checking the unicode string on command
+	  line, but seems to be checking how to treat the unicode string from
+	  stdin.  so, should escape '\' before 'u'.  this fixes a test failure
+	  on Windows.
+
+Fri Jul  5 19:05:40 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/fileutils.rb (FileUtils#chown, FileUtils#chown_R): Fix the
+	  wrong output message when user is nil, which should be "chown
+	  :group file" instead of "chown group file".
+
+Fri Jul  5 16:21:56 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* test/ruby/test_regexp.rb
+	  (TestRegexp#test_options_in_look_behind)
+	  (TestRegexp#assert_match_at): Add tests for another problem
+	  fixed in Onigmo 5.13.5.  Previously Onigmo did not allow option
+	  enclosures in look-behind, which makes it impossible to
+	  interpolate a regexp into another in the middle of a look-behind
+	  pattern.  cf. https://github.com/k-takata/Onigmo/pull/17
+
+	* test/ruby/test_regexp.rb
+	  (TestRegexp#test_options_in_look_behind)
+	  (TestRegexp#assert_match_at): Parse regexps in run time rather
+	  than in compile time.
+
+Fri Jul  5 12:14:40 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_rubyoptions.rb (TestRubyOptions#test_notfound): after
+	  r41710, the path of command uses backslash as the separator on
+	  Windows.
+
+Fri Jul  5 11:29:47 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit/assertions.rb (assert_raise_with_message): move from
+	  test/fileutils/test_fileutils.rb.  this is still experimental and
+	  the interface may be changed.
+
+Fri Jul  5 11:08:00 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (w32_spawn): r41710 made that if the command starts with
+	  a quote and includes slash, removed the top quote and NOT removed the
+	  last quote.
+	  this fixes test failures on test/ruby/test_process.rb and
+	  test/webrick.
+
+Fri Jul  5 09:53:15 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+	* lib/mkmf.rb (CONFIG['CPPOUTFILE']): fix r41769; CONFIG['CPPOUTFILE']
+	  may be nil.
+
+Fri Jul  5 05:39:53 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (BARY_MUL1): Renamed from BARY_MUL.
+	  (bary_mul1): Renamed from bary_mul.
+	  (bary_mul): Renamed from bary_mul2.
+
+Fri Jul  5 04:58:05 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mul_balance): Extracted from bigmul1_balance and
+	  use bary_mul2 and bary_add to decrease allocations.
+
+Fri Jul  5 02:14:00 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/fileutils.rb (FileUtils#symbolic_modes_to_i): Fix the wrong
+	  character class [+-=], which happened to match all desired
+	  characters but also match undesired characters.
+
+	* lib/fileutils.rb (FileUtils.chmod{,_R}): Enhance the symbolic
+	  mode parser to support the permission symbols u/g/o and multiple
+	  actions as defined in SUS, so that chmod("g=o+w", file) works as
+	  expected.  Invalid symbolic modes are now rejected with
+	  ArgumentError.
+
+Fri Jul  5 00:25:39 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (have_framework): allow header file to check.
+	  [ruby-core:55745] [Bug #8593]
+
+Thu Jul  4 22:31:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* object.c (rb_obj_equal): Fixed an rb_obj_equal documentation typo
+	  where "a" was used instead of "obj".
+	  Fixes GH-349. Patch by @adnandoric
+
+Thu Jul  4 20:39:20 2013  Tanaka Akira  <akr@fsij.org>
+
+	* tool/make-snapshot: Exit with EXIT_FAILURE when it fails.
+
+Thu Jul  4 20:20:23 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (maxpow_in_bdigit_dbl): Use tables if available.
+	  (maxpow_in_bdigit): Ditto.
+	  (U16): New macro.
+	  (U32): Ditto.
+	  (U64): Ditto.
+	  (U128): Ditto.
+	  (maxpow16_exp): New table.
+	  (maxpow16_num): New table.
+	  (maxpow32_exp): New table.
+	  (maxpow32_num): New table.
+	  (maxpow64_exp): New table.
+	  (maxpow64_num): New table.
+	  (maxpow128_exp): New table.
+	  (maxpow128_num): New table.
+
+Thu Jul  4 18:25:25 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_cstr_to_inum): Avoid temporary buffer allocation except
+	  very big base non-power-of-2 numbers.
+
+Thu Jul  4 15:51:56 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (rb_str_succ): use ONIGENC_MBCLEN_CHARFOUND_P correctly.
+
+	* string.c (rb_str_dump): ditto.
+
+Thu Jul  4 10:04:11 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* regcomp.c (): Merge Onigmo 5.13.5 23b523076d6f1161.
+
+	  * [bug]  (thanks Akinori MUSHA and Ippei Obayashi)
+	           Fix a renumbering bug in condition regexp with a named
+	           capture. [Bug #8583]
+	  * [spec] (thanks Akinori MUSHA)
+	    Allow ENCLOSE_OPTION in look-behind.
+
+Thu Jul  4 00:36:03 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* internal.h (SIGNED_INTEGER_MAX): suppress warning C4146 on VC6.
+	  seems a logical ORed expression becomes unsigned.
+
+Thu Jul  4 00:13:01 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ruby_atomic.h (rb_w32_atomic_cas): call InterlockedCompareExchange
+	  directly.
+
+	* ruby_atomic.h (ATOMIC_CAS): fix missing function call.
+
+Wed Jul  3 23:47:35 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ruby_atomic.h (ATOMIC_CAS): suppress C4022 and C4047 warnings in
+	  VC6.  only InterlockedCompareExchange is declared using PVOID.
+
+Wed Jul  3 22:29:20 2013  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (ruby_digit36_to_number_table): Declared.
+
+	* util.c (ruby_digit36_to_number_table): Moved from scan_digits.
+
+	* bignum.c (conv_digit): Use ruby_digit36_to_number_table.
+
+	* pack.c (hex2num): Ditto.
+
+Wed Jul  3 18:12:56 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (install_dirs): revert DESTDIR prefix by r39841, since
+	  it is fixed by r41648.  [ruby-core:55760] [Bug #8115]
+
+Wed Jul  3 14:15:25 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (do_stat): use rb_w32_ustati64() in win32.c to get rid of
+	  mysterious behavior of FindFirstFile() Windows API which treat "<"
+	  and ">" like as wildcard characters.  [ruby-core:55764] [Bug #8597]
+
+Wed Jul  3 12:06:42 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (maxpow_in_bdigit): Renamed from calc_hbase and return
+	  maxpow.
+
+Tue Jul  2 23:47:50 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (roomof): Cast to long.
+	  (rb_ull2big): Fix bignew arguments.
+
+Tue Jul  2 21:17:37 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_cstr_to_inum): Merge two temporary buffers.
+
+Tue Jul  2 20:25:04 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_cstr_to_inum): Use BDIGIT_DBL to collect adjacent digits.
+	  (BDIGIT_DBL_MAX): New macro.
+	  (maxpow_in_bdigit_dbl): New function.
+
+Tue Jul  2 17:23:33 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* doc/syntax/refinements.rdoc: add description of Module#using and
+	  refinement inheritance by module inclusion.
+
+Tue Jul  2 17:22:44 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* internal.h: add EUC-JP and Windows-31J.
+
+	* re.c (rb_char_to_option_kcode): use built-in encoding indexes in
+	  internal.h.
+
+	* internal.h: add UTF8-MAC.
+
+	* dir.c (rb_utf8mac_encoding): use built-in encoding indexes in
+	  internal.h.
+
+	* internal.h: add UTF-{16,32} dummy encodings.
+
+	* string.c (rb_str_inspect, str_scrub0): use built-in encoding indexes
+	  in internal.h.
+
+	* internal.h: add UTF-{16,32}{BE,LE}.
+
+	* io.c (io_strip_bom): use built-in encoding indexes in internal.h.
+
+	* internal.h (rb_{ascii8bit,utf8,usascii}_encindex): use built-in
+	  encoding indexes for optimization.
+
+	* encoding.c (enc_inspect, rb_locale_encindex),
+	  (enc_set_filesystem_encoding, rb_filesystem_encindex): use built-in
+	  encoding indexes directly.
+
+	* encoding.c (rb_enc_set_index, rb_enc_associate_index): validate
+	  argument encoding index.
+
+	* include/ruby/encoding.h (ENCODING_SET): use rb_enc_set_index()
+	  instead of setting inlined bits directly.
+
+	* encoding.c (rb_enc_init): register preserved indexes.
+
+	* internal.h (ruby_preserved_encindex): move from encoding.c.
+
+Tue Jul  2 11:14:36 2013  Shota Fukumori  <sorah@cookpad.com>
+
+	* lib/mkmf.rb (try_config): Fix to not replace $LDFLAGS with $libs
+	  (1.9.3 behavior) [ruby-core:55752] [Bug #8595]
+
+Tue Jul  2 00:39:59 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/ipsocket.c (init_inetsock_internal): Don't try mismatched
+	  address family if already failed.
+
+Mon Jul  1 23:07:38 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* template/encdb.h.tmpl: define encoding index macros to use the index
+	  statically from C source.
+
+Mon Jul  1 22:57:19 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mul2): New function.
+	  (rb_cstr_to_inum): Use a better algorithm to compose the result
+	  if input length is very long.
+
+Mon Jul  1 20:22:00 2013  Kenta Murata  <mrkn@cookpad.com>
+
+	* ext/bigdecimal/bigdecimal.h (RB_UNUSED_VAR, UNREACHABLE):
+	  import macros from ruby.h for 1.9.3.
+	  [Bug #8588] [ruby-core:55730]
+
+	* ext/bigdecimal/bigdecimal.gemspec: Bump version to 1.2.1.
+
+Mon Jul  1 20:03:39 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/ipsocket.c (init_inetsock_internal): Use an address
+	  family for local address which is different to the remote
+	  address if no other choice.
+
+Mon Jul  1 15:05:00 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/csv.rb (CSV#<<): use StringIO#set_encoding instead of creating
+	  new StringIO instance with String#force_encoding, forcing encoding
+	  discards the cached coderange bits and can make further operations
+	  very slow.  [ruby-core:55714] [Bug #8585]
+
+	* ext/stringio/stringio.c (strio_write): keep coderange of
+	  ptr->string.
+
+	* string.c (rb_enc_cr_str_buf_cat, rb_str_append): consider an empty
+	  string 7bit-clean and should not discard cached coderange of string
+	  to be appended.
+
+Mon Jul  1 12:56:41 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (rb_using_module): activate refinements in the ancestors of
+	  the argument module to support refinement inheritance by
+	  Module#include.  [ruby-core:55671] [Feature #8571]
+
+	* test/ruby/test_refinement.rb: related test.
+
+Mon Jul  1 12:02:39 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_cstr_to_inum): Skip leading zeros.
+
+Mon Jul  1 00:59:23 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (nlz16): New function.
+	  (nlz32): Ditto.
+	  (nlz64): Ditto.
+	  (nlz128): Ditto.
+	  (nlz): Redefined using an above function.
+	  (bitsize): New macro.
+	  (rb_cstr_to_inum): Use bitsize instead of nlz.
+
+Sun Jun 30 22:40:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* lib/prime.rb: Corrected a few comments. Patch by @Nullset14.
+	  Fixes GH-346.
+
+Sun Jun 30 21:53:38 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_cstr_to_inum): Use rb_integer_unpack if base is a power
+	  of 2.
+
+Sun Jun 30 10:59:23 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (join_argv): use backslash instead of slash in program
+	  path, otherwise cannot invoke "./c\u{1ee7}a.exe" for some reason.
+	  [ruby-core:24309] [Bug #1771]
+
+	* io.c (spawnv, spawn): use UTF-8 spawn family.  [Bug #1771]
+
+	* process.c (proc_exec_sh, proc_spawn_cmd, proc_spawn_sh): ditto.
+
+	* win32/win32.c (translate_char, join_argv, has_redirection): make
+	  codepage aware.
+
+	* win32/win32.c (rb_w32_udln_find_exe_r, rb_w32_udln_find_file_r):
+	  codepage independent versions.
+
+	* win32/win32.c (w32_spawn): extract codepage aware code from
+	  rb_w32_spawn().
+
+	* win32/win32.c (rb_w32_uspawn): add UTF-8 version function.
+
+	* win32/win32.c (w32_aspawn_flags): extract codepage aware code from
+	  rb_w32_aspawn_flags().
+
+	* win32/win32.c (rb_w32_uaspawn_flags, rb_w32_uaspawn_flags): add
+	  UTF-8 version functions.
+
+	* win32/win32.c (w32_getenv): extract codepage aware code from
+	  rb_w32_ugetenv() and rb_w32_getenv().
+
+	* win32/win32.c (w32_stati64): extract codepage aware code from
+	  rb_w32_ustati64() and rb_w32_stati64().
+
+	* dln.h (DLN_FIND_EXTRA_ARG, DLN_FIND_EXTRA_ARG_DECL): allow extra
+	  arguments to dln_find_{exe,file}_r().
+
+	* dln_find.c (dln_find_exe_r, dln_find_file_r): add extract arguments.
+
+	* process.c (EXPORT_STR, EXPORT_DUP): convert to default process
+	  encoding if defined.
+
+	* process.c (check_exec_env_i): convert environment variables too.
+
+	* process.c (rb_exec_fillarg): convert program path and arguments too.
+
+Sun Jun 30 01:57:08 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big_rshift): Use abs2twocomp and twocomp2abs_bang.
+
+Sun Jun 30 00:14:20 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (RBIGNUM_SET_NEGATIVE_SIGN): New macro.
+	  (RBIGNUM_SET_POSITIVE_SIGN): Ditto.
+	  (rb_big_neg): Inline get2comp to avoid double negation.
+
+Sat Jun 29 23:26:41 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_neg): Extracted from bary_2comp.
+	  (bary_plus_one): Extracted from bary_2comp.
+	  (bary_2comp): Use bary_neg and bary_plus_one.
+	  (big_extend_carry): Extracted from get2comp.
+	  (get2comp): Use big_extend_carry.
+	  (rb_integer_unpack): Use big_extend_carry.
+	  (rb_big_neg): Use bary_neg.
+
+Sat Jun 29 22:31:59 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_2comp): Simplified.
+
+Sat Jun 29 09:33:53 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigor_int): Return -1 if y == -1.
+
+Sat Jun 29 09:07:16 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigor_int): Use RB_GC_GUARD.
+	  (bigxor_int): Take xn and hibitsx arguments.  Use twocomp2abs_bang.
+	  (rb_big_xor): Use abs2twocomp and twocomp2abs_bang.
+
+Sat Jun 29 08:19:58 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigand_int): Don't apply bitwise and for BDIGIT and long.
+	  (bigor_int): Take xn and hibitsx arguments.  Use twocomp2abs_bang.
+	  (rb_big_or): Use abs2twocomp and twocomp2abs_bang.
+
+Fri Jun 29 01:08:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* numeric.c (fix_mul): remove FIT_SQRT_LONG test as it was causing
+	  fix_mul to return an incorrect result for -2147483648*-2147483648
+	  on 64 bit platforms
+
+	* test/ruby/test_integer_comb.rb (class TestIntegerComb): add test case
+
+Fri Jun 28 12:26:53 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big_and): Allocate new bignum with same size to shorter
+	  argument if it's high bits are zero.
+
+Fri Jun 28 12:14:04 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/ipsocket.c (init_inetsock_internal): Don't use local
+	  addresses which address family is different to remote address.
+
+Fri Jun 28 08:06:22 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigand_int): Add arguments, xn and hibitsx.
+	  Use twocomp2abs_bang.
+
+Thu Jun 27 23:58:13 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (abs2twocomp_bang): Removed.
+	  (abs2twocomp): Take n_ret argument to return actual length.
+	  (rb_big_and): Follow above change.
+
+Thu Jun 27 22:52:19 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (get2comp): Use bary_2comp.
+	  (abs2twocomp_bang): New function.
+	  (abs2twocomp): New function.
+	  (twocomp2abs_bang): New function.
+	  (rb_big_and): Use abs2twocomp and twocomp2abs_bang.
+
+Thu Jun 27 20:03:13 2013  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* ext/openssl/lib/openssl/ssl.rb (verify_certificate_identity): fix
+	  hostname verification. Patched by nahi.
+
+	* test/openssl/test_ssl.rb (test_verify_certificate_identity): test for
+	  above.
+
+
+Thu Jun 27 00:23:57 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big_pow): Retry if y is a Bignum and it is
+	  representable as a Fixnum.
+	  Use rb_absint_numwords.
+
+Wed Jun 26 23:53:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_save_rounding_mode): fix typo.
+	  Fixes GH-343. Patch by @jgarber.
+
+Wed Jun 26 23:22:21 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enumerator.c (rb_enumeratorize_with_size): use strict definition
+	  rb_enumerator_size_func.
+
+Wed Jun 26 23:11:14 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* gc.c (is_before_sweep): Add a missing space before a parenthesis.
+	* gc.c (rb_gc_force_recycle): Add a missing space around a parenthesis.
+
+Wed Jun 26 22:44:00 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/intern.h (rb_enumeratorize_with_size): cast for
+	  backward compatibility.
+
+	* include/ruby/intern.h (rb_enumerator_size_func): define strict
+	  function declaration for rb_enumeratorize_with_size().
+
+Wed Jun 26 21:01:22 2013  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/ruby/test_io.rb (TestIO#test_write_32bit_boundary): skip if
+	  writing a file is slow.
+	  [ruby-core:55541] [Bug #8519]
+
+Wed Jun 26 16:42:11 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb: should use expanded values for header directories
+	  unless extmk.  patch by vo.x (Vit Ondruch) at [ruby-core:55653]
+	  [Bug #8115], rhbz#921650.
+
+Wed Jun 26 12:48:22 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigxor_int): Fix a buffer over read.
+
+Wed Jun 26 12:13:12 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigand_int): Consider negative values.
+	  (bigor_int): The allocated bignum should have enough size
+	  to store long.
+	  This fixes (bignum fits in a BDIGIT) | (fixnum bigger than BDIGIT)
+	  on platforms which SIZEOF_BDIGITS < SIZEOF_LONG,
+	  such as LP64 with 32bit BDIGIT (no int128).
+
+Wed Jun 26 12:08:51 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/socket/test_udp.rb: Close sockets explicitly.
+	  Don't use fixed port number.
+
+Wed Jun 26 07:27:17 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigand_int): Fix a buffer over read.
+
+Wed Jun 26 06:48:07 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigadd_int): Fix a buffer over read.
+
+Wed Jun 26 01:18:13 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (is_before_sweep): Add new helper function that check the object
+	  is before sweep?
+	* gc.c (rb_gc_force_recycle): Have to clear mark bit if object's slot
+	  already ready to minor sweep.
+
+Wed Jun 26 01:17:29 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigsub_int): Fix a buffer over read.
+
+Tue Jun 25 22:45:43 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_absint_singlebit_p): Use POW2_P.
+	  (bary_pack): Ditto.
+	  (rb_big2str0): Ditto.
+	  (POW2_P): Moved to top.
+
+Tue Jun 25 22:28:07 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/rubygems/ext/builder.rb (Gem::Ext::Builder.make): Pass
+	  DESTDIR via command line to override what's in MAKEFLAGS.  This
+	  fixes an installation problem under a package building
+	  environment where DESTDIR is specified in the (parent) command
+	  line. [Fixes GH-327]
+
+Tue Jun 25 21:43:13 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2dbl): Use (BDIGIT)1 instead of 1UL.
+	  (bary_mul_normal): Remove a useless cast.
+
+Tue Jun 25 21:26:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigMath_s_exp): Fix for the cases when
+	  the argument x is not a BigDecimal.
+	  This change is based on the patch made by Heesob Park and Garth Snyder.
+	  [Bug #6862] [ruby-core:47145]
+	  [Fixes GH-332] https://github.com/ruby/ruby/pull/332
+
+Tue Jun 25 20:36:31 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2ulong): "check" argument removed.
+	  (rb_big2ulong): Follow above change.
+	  (rb_big2long): Ditto.
+	  (rb_big_rshift): Ditto.
+	  (rb_big_aref): Ditto.
+
+Tue Jun 25 20:08:29 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big2ulong_pack): Use rb_integer_pack.
+	  (rb_big_aref): Call big2ulong with TRUE for "check" argument.
+	  It should be non-effective.
+
+Tue Jun 25 19:07:33 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (LSHIFTX): Revert r41611.
+	  The redundant expression suppresses a warning, C4293, by Visual
+	  Studio.
+	  http://ruby-mswin.cloudapp.net/vc10-x64/ruby-trunk/log/20130625T072854Z.log.html.gz#miniruby
+
+Tue Jun 25 19:03:00 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2ulong): Add a cast.
+	  (big2ull): Add a specialized code for SIZEOF_LONG_LONG <=
+	  SIZEOF_BDIGITS.
+
+Tue Jun 25 12:42:57 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (integer_unpack_single_bdigit): Use "1 + ~u" instead of
+	  "-u" to suppress warning (C4146) by Visual Studio.
+	  Reported by ko1 via IRC.
+
+Tue Jun 25 12:28:57 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2ulong): Add code specialized for SIZEOF_LONG <=
+	  SIZEOF_BDIGITS.
+	  This prevents shift width warning from "num <<= BITSPERDIG".
+
+Tue Jun 25 12:23:30 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: fix oldgen/remembered_shady counting algorithm.
+
+	* gc.c (rgengc_check_shady): increment
+	  `objspace->rgengc.remembered_shady_object_count' here.
+
+	* gc.c (rgengc_remember): return FALSE if obj is already remembered.
+
+	* gc.c (rgengc_rememberset_mark): make it void.
+
+	* gc.c (gc_mark_children): fix to double counting oldgen_object_count
+	  at minor GC.
+
+Tue Jun 25 12:07:18 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (MSB): Removed.
+	  (BDIGIT_MSB): Defined using BIGRAD_HALF.
+	  (bary_2comp): Apply BIGLO after possible over flow of BDIGIT.
+	  (get2comp): Ditto.
+	  (bary_unpack_internal): Use BDIGIT_MSB.
+	  Apply BIGLO after possible over flow of BDIGIT.
+	  (rb_integer_unpack): Use BDIGIT_MSB.
+	  (calc_hbase): Use BDIGMAX.
+	  (big2dbl): Use BDIGMAX.
+	  Apply BIGLO after possible over flow of BDIGIT.
+	  (rb_big_neg): Apply BIGLO after possible over flow of BDIGIT.
+	  (biglsh_bang): Ditto.
+	  (bigrsh_bang): Ditto.
+	  (bary_divmod): Use BDIGIT_MSB.
+	  (bigdivrem): Ditto.
+	  (bigxor_int): Apply BIGLO after possible over flow of BDIGIT.
+
+	* marshal.c (shortlen): Use SIZEOF_BDIGITS instead of sizeof(BDIGIT).
+
+	* ext/openssl/ossl_bn.c (ossl_bn_initialize): Use SIZEOF_BDIGITS
+	  instead of sizeof(BDIGIT).
+
+Tue Jun 25 11:40:08 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* bignum.c (big2ulong): suppress shorten-64-to-32 warning.  BDIGIT can
+	  be bigger than long now.
+
+	* bignum.c (LSHIFTX): remove redundant never-true expression.
+
+Tue Jun 25 00:55:54 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (typedef struct rb_objspace): Change members for monitor objects.
+	* gc.c (gc_marks_test): Check all WriteBarrier Errors and track them in obj-tree.
+	* gc.c (rgengc_check_shady): Ditto.
+	* gc.c (gc_marks): Move 2 function calls to gc_marks_test for test initialize.
+
+Mon Jun 24 23:30:31 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (integer_unpack_single_bdigit): Refine code to filling
+	  higher bits and use BIGLO.
+
+Mon Jun 24 22:26:31 2013  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/rinda/test_rinda.rb (RingIPv6#prepare_ipv6):
+	  ifindex() function may not be implemented on Windows. We use another
+	  check for the case.
+
+Mon Jun 24 22:11:37 2013  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/gdbm/test_gdbm.rb (TestGDBM#test_s_open_nolock):
+	  skip a failing test on Windows because flock() implementation is
+	  different from Unix.
+
+Mon Jun 24 22:06:14 2013  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/rubygems/test_gem_installer.rb (test_install_extension_flat):
+	  use ruby in build directory in case ruby is not installed.
+	  [ruby-core:53265] [Bug #8058]
+
+Mon Jun 24 22:04:02 2013  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* ext/dl/cfunc.c (rb_dlcfunc_call): fix conversion from Bignum to
+	  pointer. sizeof(DLSTACK_TYPE) is larger than sizeof(long) on
+	  Windows x64 and higher bits over sizeof(long) of DLSTACK_TYPE was
+	  zero even if a pointer value was over 32 bits which causes SEGV on
+	  DL::TestCPtr#test_to_ptr_io. Adding a cast solves the bug.
+
+Mon Jun 24 22:04:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* eval_error.c (warn_printf): use rb_vsprintf instead so ruby specific
+	  extensions like PRIsVALUE can be used in format strings
+	* eval_error.c (error_print): use warn_print_str (alias for
+	  rb_write_error_str) to print a string value instead of using
+	  RSTRING_PTR and RSTRING_LEN manually
+	* eval.c (setup_exception): use PRIsVALUE instead of %s and RSTRING_PTR
+
+Mon Jun 24 20:31:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* compile.c (make_name_for_block): use PRIsVALUE in format string
+	  instead of %s and RSTRING_PTR to protect objects from being garbage
+	  collected too soon
+	* encoding.c (str_to_encindex): ditto
+	* hash.c (rb_hash_fetch_m): ditto
+	* io.c (rb_io_reopen): ditto
+	* parse.y (reg_fragment_check_gen): ditto
+	* parse.y (reg_compile_gen): ditto
+	* parse.y (ripper_assert_Qundef): ditto
+	* re.c (rb_reg_raise): ditto
+	* ruby.c (set_option_encoding_once): ditto
+	* vm_eval.c (rb_throw_obj): ditto
+
+Mon Jun 24 07:57:18 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (after_gc_sweep): Have to record malloc info before reset.
+	* gc.c (gc_prof_timer_start): Pick out part of new record creation as gc_prof_setup_new_record.
+	* gc.c (gc_prof_set_malloc_info): Move point of recording allocation size to front of mark.
+
+Mon Jun 24 02:53:09 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* array.c: Return value in Array overview example found by @PragTob
+	  [Fixes GH-336] https://github.com/ruby/ruby/pull/336
+
+Mon Jun 24 02:45:51 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* array.c (rb_ary_zip): typo by @PragTob [Fixes GH-337]
+	  https://github.com/ruby/ruby/pull/337
+
+Mon Jun 24 02:42:01 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* win32/README.win32: grammar typo by @blankenshipz [Fixes GH-334]
+	  https://github.com/ruby/ruby/pull/334
+
+Mon Jun 24 00:59:35 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (BIGUP): Use LSHIFTX and avoid cast to consider the type
+	  of x is bigger than BDIGIT_DBL.
+	  (big2ulong): Use unsigned long to store the result.
+	  (big2ull): Use unsigned LONG_LONG to store the result.
+	  (bigand_int): Use long for num to avoid data loss.
+	  (bigor_int): Ditto.
+	  (bigxor_int): Ditto.
+
+Sun Jun 23 23:05:58 2013  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/defines.h (BDIGIT): Define it only if it is not defined
+	  yet.  This eases tests and debug.
+	  (SIZEOF_BDIGITS): Ditto.
+	  (BDIGIT_DBL): Ditto.
+	  (BDIGIT_DBL_SIGNED): Ditto.
+	  (PRI_BDIGIT_PREFIX): Ditto.
+	  (PRI_BDIGIT_DBL_PREFIX): Ditto.
+	  (PRIdBDIGIT): Define it only if PRI_BDIGIT_PREFIX is defined.
+	  (PRIiBDIGIT): Ditto.
+	  (PRIoBDIGIT): Ditto.
+	  (PRIuBDIGIT): Ditto.
+	  (PRIxBDIGIT): Ditto.
+	  (PRIXBDIGIT): Ditto.
+	  (PRIdBDIGIT_DBL): Ditto.
+	  (PRIiBDIGIT_DBL): Ditto.
+	  (PRIoBDIGIT_DBL): Ditto.
+	  (PRIuBDIGIT_DBL): Ditto.
+	  (PRIxBDIGIT_DBL): Ditto.
+	  (PRIXBDIGIT_DBL): Ditto.
+
+	* include/ruby/ruby.h (RBIGNUM_EMBED_LEN_MAX): Define it only if it is
+	  not defined yet.
+
+Sun Jun 23 17:29:51 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (integer_unpack_single_bdigit): Use a cast.
+
+Sun Jun 23 15:38:07 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* bootstraptest/test_thread.rb: rescue resource limitation errors.
+
+Sun Jun 23 08:19:27 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (integer_unpack_single_bdigit): Extracted from
+	  bary_unpack_internal.
+
+Sun Jun 23 07:41:52 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_unpack_internal): Suppress warnings (C4146) on Visual Studio.
+	  Reported by ko1 via IRC.
+
+Sun Jun 23 06:49:28 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h, gc.c: rename macros and functions:
+	  OBJ_WB_GIVEUP() -> OBJ_WB_UNPROTECT(),
+	  rb_obj_wb_giveup() -> rb_obj_wb_unprotect(),
+	  rb_gc_giveup_promoted_writebarrier() ->
+	  rb_gc_writebarrier_unprotect_promoted(),
+
+	* class.c, eval.c, hash.c: use OBJ_WB_UNPROTECT().
+
+Sun Jun 23 05:41:32 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* class.c (rb_include_class_new), eval.c (rb_using_refinement):
+	  make classes/modules (who share method table) shady.
+	  If module `a' and `b' shares method table m_tbl and new method
+	  with iseq is added, then write barrier is applied only `a' or `b'.
+	  To avoid this issue, shade such classes/modules.
+
+	* vm_method.c (rb_method_entry_make): add write barriers.
+
+Sun Jun 23 01:27:54 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bytes_zero_p): Removed.
+	  (bary_pack): Don't call bytes_zero_p.
+
+Sun Jun 23 00:51:29 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bytes_zero_p): Extracted from bary_pack.
+	  (bary_pack): Use bytes_zero_p.
+
+Sun Jun 23 00:16:57 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (MSB): New macro.
+	  (bary_unpack_internal): Use MSB.
+	  (bary_divmod): Ditto.
+	  (bigdivrem): Ditto.
+
+Sat Jun 22 23:45:22 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_swap): New function.
+	  (bary_pack): Use bary_swap.
+	  (bary_unpack_internal): Ditto.
+
+Sat Jun 22 23:18:39 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bytes_2comp): Renamed from quad_buf_complement.
+	  (bary_pack): Use bytes_2comp.
+	  (rb_quad_pack): Use rb_integer_pack.
+	  (rb_quad_unpack): Use rb_integer_unpack.
+
+Sat Jun 22 21:46:18 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_integer_unpack): Don't allocate a Bignum if possible.
+
+Sat Jun 22 21:03:58 2013  Tanaka Akira  <akr@fsij.org>
+
+	* pack.c (pack_unpack): Remove specialized unpackers for integers.
+
+Sat Jun 22 20:36:50 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_unpack_internal): Specialized unpacker implemented.
+	  (bary_unpack): Support INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION.
+	  (rb_integer_unpack): Support INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION.
+
+Sat Jun 22 18:53:10 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_pack): Support
+	  INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION flag.
+	  Fix byte order and word order handling in code specialized for
+	  wordsize % SIZEOF_BDIGITS == 0.
+
+	* internal.h (INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION): Defined.
+
+Sat Jun 22 15:41:25 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rgengc_check_shady): add new WB miss checking
+	  on RGENGC_CHECK_MODE >= 2.
+
+	    (1) Save bitmaps before marking
+	    (2) Run full marking
+	    (3) On each traceable object,
+	      (a) object        was not oldgen (== newly or shady object) &&
+	      (b) parent object was     oldgen &&
+	      (c) parent object was not remembered &&
+	      (d) object        was not remembered
+	      then, it should be WB miss.
+
+	  This idea of this checker is by Masaya Tarui <tarui@ruby-lang.org>.
+
+Sat Jun 22 15:25:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* ext/etc/etc.c (setup_passwd): revert r41560, unnecessary
+
+Sat Jun 22 14:39:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* ext/etc/etc.c (Init_etc): omit 'passwd' from definition of Etc::Passwd
+	  if HAVE_STRUCT_PASSWD_PW_PASSWD is not defined to prevent mismatch of
+	  fields and values in setup_passwd
+
+Sat Jun 22 14:35:40 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/dl/cfunc.c (rb_dlcfunc_call): Use rb_big_pack instead of
+	  rb_big2ulong_pack and rb_big2ull.
+
+	* include/ruby/intern.h (rb_big2ulong_pack): Deprecated.
+
+Sat Jun 22 14:31:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* ext/etc/etc.c (setup_passwd): pass 0 as VALUE to rb_struct_new to
+	  prevent segfault if the compiler passes it as a 32 bit integer on
+	  a 64 bit ruby
+
+Sat Jun 22 13:47:13 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_pack): MEMZERO can be used even if nails is not zero.
+
+Sat Jun 22 13:43:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* ext/etc/etc.c (etc_getpwnam): use PRIsVALUE in format string instead
+	  of %s and RSTRING_PTR
+
+	* ext/etc/etc.c (etc_getgrnam): ditto
+
+Sat Jun 22 13:07:15 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (CLEAR_LOWBITS): Rewritten without RSHIFTX.
+	  (RSHIFTX): Removed.
+
+Sat Jun 22 10:38:03 2013  Tanaka Akira  <akr@fsij.org>
+
+	* pack.c (num2i32): Removed.
+	  (pack_pack): Don't use num2i32.
+
+Sat Jun 22 09:55:13 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (LSHIFTX): Defined to suppress a warning.
+	  (RSHIFTX): Ditto.
+	  (CLEAR_LOWBITS): Use LSHIFTX and RSHIFTX.
+	  (FILL_LOWBITS): Use LSHIFTX.
+	  Reported by ko1 via IRC.
+
+Sat Jun 22 09:11:33 2013  Ryan Davis  <ryand-ruby@zenspider.com>
+
+	* lib/minitest/*: Imported minitest 4.7.5 (r8724)
+	* test/minitest/*: ditto
+
+Sat Jun 22 07:20:30 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_prof_set_heap_info, after_gc_sweep): call
+	  gc_prof_set_heap_info() just after sweeping to calculate
+	  live object number correctly.
+	  (live object number = total generated number (before marking) -
+	                        total freed number (after sweeping))
+
+	* gc.c (gc_marks): record `oldgen_object_count' into current profile`
+	  record directly.
+
+	* gc.c (rgengc_rememberset_mark): same for remembered_normal_objects
+	  and remembered_shady_objects.
+
+Sat Jun 22 06:46:04 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_objspace::profile): rename rb_objspace::profile::record to
+	  records (because it points a set of records) and add a field
+	  rb_objspace::profile::current_record to point a current profiling
+	  record.
+
+	* gc.c: use above fields.
+
+Sat Jun 22 06:05:36 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_gc_giveup_promoted_writebarrier): remove `rest_sweep()'
+	  because all of remembered objects are called for gc_mark_children().
+
+Sat Jun 22 05:08:03 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rgengc_rememberset_mark): call gc_mark_children() for
+	  remembered objects directly instead of pushing on the mark stack.
+
+Sat Jun 22 04:48:53 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h (OBJ_WRITE): cast to (VALUE *) for second
+	  parameter `slot'. You don't need to write a cast (VALUE *) any more.
+
+	* class.c, compile.c, hash.c, iseq.c, proc.c, re.c, variable.c,
+	  vm.c, vm_method.c: remove cast expressions for OBJ_WRITE().
+
+Sat Jun 22 04:37:08 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (slot_sweep_body): rename to slot_sweep().
+	  No need to separate major/minor GC.
+
+	* gc.c (gc_setup_mark_bits): remove gc_clear_mark_bits() and unify to
+	  this function.
+
+Sat Jun 22 04:20:21 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (check_bitmap_consistency): add to check flag and bitmap consistency.
+	  Use this function in several places.
+
+Sat Jun 22 02:18:07 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_pack): Specialized packers implemented.
+	  (HOST_BIGENDIAN_P): New macro.
+	  (ALIGNOF): New macro.
+	  (CLEAR_LOWBITS): New macro.
+	  (FILL_LOWBITS): New macro.
+	  (swap_bdigit): New macro.
+	  (bary_2comp): Returns an int.
+
+	* internal.h (swap16): Moved from pack.c
+	  (swap32): Ditto.
+	  (swap64): Ditto.
+
+Fri Jun 21 21:29:49 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (typedef enum): Introduce flags of major gc reason.
+	* gc.c (garbage_collect_body): Ditto.
+	* gc.c (gc_profile_flags): Ditto.
+	* gc.c (gc_profile_dump_on): Ditto.
+
+Fri Jun 21 21:11:53 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (allocate_sorted_heaps): remove unused variable `add'.
+
+Fri Jun 21 20:50:32 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: constify RArray::as::ary and RArray::heap::ptr.
+	  Use RARRAY_ASET() or RARRAY_PTR_USE() to modify Array objects.
+
+	* array.c, gc.c: catch up above changes.
+
+Fri Jun 21 20:32:13 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_eval.c (eval_string_with_cref): fix WB miss.
+
+Fri Jun 21 20:15:49 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: support write barrier protection for T_STRUCT.
+	  Introduce the following C APIs:
+	    * RSTRUCT_RAWPTR(st) returns pointer (do WB on your risk).
+	      The type of returned pointer is (const VALUE *).
+	    * RSTRUCT_GET(st, idx) returns idx-th value of struct.
+	    * RSTRUCT_SET(st, idx, v) set idx-th value by v with WB.
+	  And
+	    * RSTRUCT_PTR(st) returns pointer with shady operation.
+	      The type of returned pointer is (VALUE *).
+
+	* struct.c, re.c, gc.c, marshal.c: rewrite with above APIs.
+
+Fri Jun 21 19:38:37 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (BDIGMAX): Use BIGRAD.
+	  (BIGLO): Use BDIGMAX.
+	  (bigdivrem1): Ditto.
+	  (bigor_int): Ditto.
+	  (rb_big_or): Ditto.
+
+Fri Jun 21 19:18:48 2013  Tanaka Akira  <akr@fsij.org>
+
+	* pack.c (pack_pack): Move the implementation for 'c' directive after
+	  pack_integer label.
+
+Fri Jun 21 19:11:56 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h, re.c: support write barrier for T_REGEXP.
+
+	   Note: T_MATCH object is also easy to support write barriers.
+	         However, most of T_MATCH objects are short-lived objects.
+	         So I skipped to support non-shady T_MATCH.
+
+Fri Jun 21 18:56:58 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigsub_int): Use bdigit_roomof.
+	  (bigadd_int): Ditto.
+	  (bigand_int): Ditto.
+	  (bigor_int): Ditto.
+	  (bigxor_int): Ditto.
+
+Fri Jun 21 17:56:25 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/gc/gcbench.rb: fix summary of benchmark result notation.
+
+Fri Jun 21 16:38:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* ext/openssl/ossl_x509attr.c: change OSSL_X509ATTR_IS_SINGLE and
+	  OSSL_X509ATTR_SET_SINGLE macros to use ->value.set rather than
+	  ->set to fix compile failure
+
+Fri Jun 21 15:26:45 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_sweep): profile sweep time correctly when LAZY_SWEEP is
+	  disabled.
+
+	* gc.c (gc_marks_test): store oldgen count and shady count
+	  before test marking and restore them after marking.
+
+Fri Jun 21 15:07:42 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: enable lazy sweep (commit miss).
+
+Fri Jun 21 14:31:29 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (ruby_setenv): refine error message so include the variable
+	  name.
+
+Fri Jun 21 14:15:08 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: fix to use total_allocated_object_num and heaps_used
+	  at the GC time for profiler.
+
+Fri Jun 21 12:35:35 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: RGENGC_CHECK_MODE should be 0.
+
+Fri Jun 21 11:18:25 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_marks_body): fix to get `th' in this function.
+
+Fri Jun 21 10:21:44 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (heaps_header/heaps_slot): embed bitmaps into heaps_slot.
+	  no need to maintain allocation/free bitmaps.
+
+Fri Jun 21 09:22:16 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (slot_sweep_body): add counters at a time.
+
+	* gc.c (gc_profile_dump_on): fix line break position.
+
+Fri Jun 21 08:14:00 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c: refactoring bitmaps. introduce bits_t type and some Consts.
+
+Fri Jun 21 08:04:32 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: fix to support USE_RGENGC == 0 (disable RGenGC).
+	  If USE_RGENGC==0, it caused compilation error.
+
+Fri Jun 21 08:08:11 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (lazy_sweep): Use is_lazy_sweeping()
+	* gc.c (rest_sweep): Ditto.
+	* gc.c (gc_prepare_free_objects): Ditto.
+
+Fri Jun 21 07:34:47 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_profile_record::oldgen_objects): added.
+
+	* gc.c (gc_profile_dump_on): print the following information:
+	  * Living object counts
+	  * Free object counts
+	  If RGENGC_PROFILE > 0 then
+	  * Oldgen object counts
+	  * Remembered normal object counts
+	  * Remembered shady object counts
+
+Fri Jun 21 06:43:59 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_ull2big): Refactored.
+	  (rb_uint2big): Useless code removed.
+
+Fri Jun 21 05:37:39 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_prof_sweep_timer_stop): accumulate sweep time only when
+	  record->gc_time > 0.
+
+Fri Jun 21 00:37:31 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/bigdecimal: Workaround fix for bigdecimal test failures caused
+	  by [ruby-dev:47413] [Feature #8509]
+
+	* ext/bigdecimal/bigdecimal.h (BDIGIT): Make it independent from the
+	  definition for bignum.c.
+	  (SIZEOF_BDIGITS): Ditto.
+	  (BDIGIT_DBL): Ditto.
+	  (BDIGIT_DBL_SIGNED): Ditto.
+	  (PRI_BDIGIT_PREFIX): Undefine the definition.
+	  (PRI_BDIGIT_DBL_PREFIX): Ditto.
+
+	* ext/bigdecimal/bigdecimal.c (RBIGNUM_ZERO_P): Use rb_bigzero_p.
+	  (bigzero_p): Removed.
+	  (is_even): Use rb_big_pack.
+
+Thu Jun 20 22:52:42 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigmul1_toom3): Don't call bignorm twice.
+
+Thu Jun 20 22:49:27 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bignorm): Don't call bigtrunc if the result is a fixnum.
+
+Thu Jun 20 22:29:42 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_uint2big): Refactored.
+
+Thu Jun 20 22:24:41 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (dump_bignum): Use SIZEOF_BDIGITS.
+
+Thu Jun 20 22:22:46 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2ulong): Change the return type to unsigned long.
+	  (rb_big2ulong_pack): Follow the above change.
+	  (rb_big2long): Ditto.
+	  (rb_big_lshift): Ditto.
+	  (rb_big_rshift): Ditto.
+	  (rb_big_aref): Ditto.
+
+Thu Jun 20 22:02:46 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_unpack_internal): Return -2 when negative overflow.
+	  (bary_unpack): Set the overflowed bit if an extra BDIGIT exists.
+	  (rb_integer_unpack): Set the overflowed bit.
+
+Thu Jun 20 21:17:19 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rgengc_rememberset_mark): record
+	  (1) normal objects count in remember set
+	  (2) shady objects count in remember set
+	  each GC timing.
+
+	* gc.c (gc_profile_record_get): enable to access above information
+	  and REMOVING_OBJECTS, EMPTY_OBJECTS.
+
+Thu Jun 20 18:29:26 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/gc/gcbench.rb: Do not use GC::Profiler::disable because
+	  GC::Profiler::disable prohibit to access profiling data. It should
+	  be spec bug.
+
+	  Skip GC::Profiler::report if RUBY_VERSION < '2.0.0'
+
+Thu Jun 20 17:59:08 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/gc/gcbench.rb: stop GC::Profiler before output results.
+	  Generating GC::Profiler result under profiling causes infinite loop.
+
+Thu Jun 20 17:24:24 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/gc/gcbench.rb: don't use __dir__ to make compatible
+	  with ruby 1.9.3.
+
+Thu Jun 20 16:57:19 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/bm_app_aobench.rb: use attr_accessor/reader instead of
+	  defining methods.
+
+Thu Jun 20 16:46:46 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/bm_app_aobench.rb: added.
+
+	* benchmark/gc/aobench.rb: added.
+
+Thu Jun 20 16:28:33 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/bm_so_binary_trees.rb: disable `puts' method
+	  and change iteration parameter to increase execution time.
+
+	* benchmark/gc/binarytree.rb: added.
+
+Thu Jun 20 16:06:37 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/gc/pentomino.rb: added.
+	  Simply load pentomino puzzle in the benchmark/ directory.
+
+Thu Jun 20 15:32:56 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/gc/redblack.rb: import red black tree benchmark from
+	  https://github.com/jruby/rubybench/blob/master/time/bench_red_black.rb
+
+	* benchmark/gc/ring.rb: add a benchmark. This benchmark create many
+	  old objects.
+
+Thu Jun 20 15:14:00 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/gc: create a directory to store GC related benchmark.
+
+	* benchmark/gc/gcbench.rb: moved from tool/gcbench.rb.
+
+	* benchmark/gc/hash(1|2).rb: ditto.
+
+	* benchmark/gc/rdoc.rb: ditto.
+
+	* benchmark/gc/null.rb: added.
+
+	* common.mk: fix rule.
+
+Thu Jun 20 14:09:54 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* tool/hashbench1.rb: fix parameter too. Increase temporary objects.
+
+Thu Jun 20 14:01:35 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* tool/hashbench1.rb: fix parameters.
+
+Thu Jun 20 14:00:34 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* common.mk: remove dependency from ruby.
+
+Thu Jun 20 13:14:06 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (rb_check_backtrace): evaluate RARRAY_AREF only once.
+	  the first argument of RB_TYPE_P is expanded twice for non-immediate
+	  types.
+
+Thu Jun 20 08:09:29 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* tool/gcbench.rb: Summary in one line.
+
+	* common.mk: separate gcbench-hash to gcbench-hash1 and gcbench-hash2.
+
+Thu Jun 20 08:07:23 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (BIGSIZE): New macro.
+	  (bigfixize): Use BIGSIZE.
+	  (big2ulong): Ditto.
+	  (check_shiftdown): Ditto.
+	  (rb_big_aref): Ditto.
+
+Thu Jun 20 07:46:48 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (rb_gc_writebarrier): give up rescan A and register B directly
+	  if A has huge number of children.
+
+Thu Jun 20 07:30:35 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* common.mk: add new rules `gcbench-rdoc', `gcbench-hash'.
+
+	* tool/gcbench.rb: separate GC bench framework and process.
+
+	* tool/hashbench1.rb, tool/hashbench2.rb: add two types GC bench.
+	  hashbench1: many temporal objects (GC by newobj)
+	  hashbench2: hash size becomes bigger and bigger (GC by malloc)
+	  Two benches are executed by `gcbench-hash' rule.
+
+	* tool/rdocbench.rb: separated.
+
+Thu Jun 20 06:25:39 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* tool/rdocbench.rb: add summary.
+
+Thu Jun 20 06:18:01 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_profile_total_time): check objspace->profile.next_index > 0.
+
+Thu Jun 20 05:47:41 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_prof_sweep_timer_start): fix merge miss.
+
+	* gc.c (GC_PROFILE_MORE_DETAIL): set it 0.
+
+Thu Jun 20 05:38:56 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: Accumulate sweep time to GC time.
+	  Now [GC time] is [mark time] + [sweep time] + [misc].
+	  ([GC time] >= [mark time] + [sweep time])
+
+	* gc.c (gc_prof_sweep_slot_timer_start/stop): rename to
+	  gc_prof_sweep_timer_start/stop and locate at lazy_sweep().
+
+	* gc.c (elapsed_time_from): add a utility function.
+
+Thu Jun 20 05:08:53 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_marks): fix wrong option. FALSE means major/full GC.
+	  It should be TRUE (minor marking).
+
+Thu Jun 20 02:44:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (waitpid): should not return 0 but wait until exit
+	  unless WNOHANG is given.  waiting huge process may return while
+	  active, for some reason.
+
+Thu Jun 20 01:34:15 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bdigit_roomof): Use SIZEOF_BDIGITS.
+	  (bigfixize): Refine an ifdef condition.
+	  (rb_absint_size): Use bdigit_roomof.
+	  (rb_absint_singlebit_p): Ditto.
+	  (rb_integer_pack): Ditto.
+	  (integer_pack_fill_dd): Use BITSPERDIG.
+	  (integer_unpack_push_bits): Use BITSPERDIG, BIGLO and BIGDN.
+
+Thu Jun 20 01:07:39 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (MARKED_IN_BITMAP, FL_TEST2): return boolean value since always
+	  used as boolean value.
+
+	* gc.c (MARK_IN_BITMAP, CLEAR_IN_BITMAP): evaluate bits once.
+
+Thu Jun 20 00:05:07 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (RVALUE_PROMOTED): fix type.
+
+Wed Jun 19 23:39:01 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_marks_test): rewrite checking code.
+	  When RGENGC_CHECK_MODE >= 2, all minor marking, run normal minor
+	  marking *and* major/full marking. After that, compare the results
+	  and shows BUG if a object living with major/full marking but dead
+	  with minor marking.
+	  After detecting bugs, print references information.
+	  (RGENGC_CHECK_MODE == 2, show references to dead object)
+	  (RGENGC_CHECK_MODE == 3, show all references)
+
+Wed Jun 19 23:51:48 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigfixize): Use rb_absint_size.
+	  (check_shiftdown): Ditto.
+	  (big2ulong): Use bdigit_roomof.
+
+Wed Jun 19 23:32:23 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (RVALUE_PROMOTED): check consistency between oldgen flag and
+	  oldgen bitmap if RGENGC_CHECK_MODE > 0.
+
+Wed Jun 19 23:29:29 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_gc_force_recycle): clear oldgen bitmap, too.
+
+Wed Jun 19 21:02:13 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_uint2big): Consider environments BDIGIT is bigger than
+	  long.
+	  (big2ulong): Ditto.
+	  (rb_big_aref): Ditto.
+	  (rb_big_pack): Just call rb_integer_pack.
+	  (rb_big_unpack): Just call rb_integer_unpack.
+
+Wed Jun 19 20:51:21 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* gc.c (gc_stress_get): GC.stress can be Fixnum.
+
+Wed Jun 19 19:31:30 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (DIGSPERLONG): Don't define if BDIGIT is bigger than long.
+	  (DIGSPERLL): Don't define if BDIGIT is bigger than LONG_LONG
+	  (rb_absint_size): Consider environments BDIGIT is bigger than long.
+	  Use BIGLO and BIGDN.
+	  (rb_absint_singlebit_p): Ditto.
+	  (rb_integer_pack): Ditto.
+	  (bigsub_int): Consider environments BDIGIT is bigger than long.
+	  Use SIZEOF_BDIGITS instead of sizeof(BDIGIT).
+	  (bigadd_int): Ditto.
+	  (bigand_int): Ditto.
+	  (bigor_int): Ditto.
+	  (bigxor_int): Ditto.
+
+Wed Jun 19 15:14:30 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h (struct rb_data_type_struct), gc.c: add
+	  rb_data_type_struct::flags. Now, this flags is passed
+	  at T_DATA object creation. You can specify FL_WB_PROTECTED
+	  on this flag.
+
+	* iseq.c: making non-shady iseq objects.
+
+	* class.c, compile.c, proc.c, vm.c: add WB for iseq objects.
+
+	* vm_core.h, iseq.h: constify fields to detect WB insertion.
+
+Wed Jun 19 15:11:13 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (gc_mark_children): show more info for broken object.
+
+Wed Jun 19 14:04:41 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* test/ruby/envutil.rb (EnvUtil#rubybin): remove unnecessary
+	  unless expression.
+
+Wed Jun 19 07:47:48 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (garbage_collect_body): use FIX2INT for ruby_gc_stress.
+
+Wed Jun 19 07:44:31 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_objspace::gc_stress): int -> VALUE to store Fixnum object.
+
+Wed Jun 19 07:25:35 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (make_deferred): clear flags to T_ZOMBIE.
+
+	* gc.c (slot_sweep_body): fix indent.
+
+Wed Jun 19 07:18:47 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big_aref): Apply BIGLO to ~xds[i] for environment which
+	  BDIGIT is 16bit.
+
+Wed Jun 19 07:09:26 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rgengc_remember): fix output level.
+
+	* gc.c (rgengc_rememberset_mark): fix to output clear count.
+	  (shady_object_count + clear_count = count of remembered objects)
+
+Wed Jun 19 07:06:21 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rgengc_remember): check T_NONE and T_ZOMBIE
+	  if RGENGC_CHECK_MODE > 0.
+
+Wed Jun 19 07:02:19 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (RGENGC_CHECK_MODE): add new check mode `3'.
+	  In this mode, show all references if there is
+	  a miss-corrected object.
+
+Wed Jun 19 06:31:08 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_stress_set): add special option of GC.stress.
+	  `GC.stress=(flag)' accepts integer to control behavior of GC.
+	  See code for details. Of course, this feature is only for MRI.
+
+	  You can debug RGenGC (WB) using `GC.stress = 1'.
+	  Using this option, do minor marking at all possible places.
+
+	  GC::STRESS_MINOR_MARK = 1 and GC::STRESS_LAZY_SWEEP = 2
+	  seem good to add.
+
+Wed Jun 19 06:29:31 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (kwmerge_i): add WB.
+
+Wed Jun 19 06:26:49 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* hash.c: `st_update()' also has same issue of last fix.
+	  write barriers at callback function are too early.
+	  All write barriers are executed after `st_update()'
+
+Wed Jun 19 04:33:22 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* variable.c (rb_const_set): fix WB miss.
+
+	  WBs had located before creating reference between a klass
+	  and constant value. It causes GC bug.
+
+	    # pseudo code:
+	    WB(klass, value); # WB and remember klass
+	    st_insert(klass->const_table, const_id, value);
+
+	  `st_insert()' can cause GC before inserting `value' and
+	  forget `klass' from the remember set. After that, relationship
+	  between `klass' and `value' are created with constant table.
+	  Now, `value' can be young (shady) object and `klass' can be old
+	  object, without remembering `klass' object.
+	  At the next GC, old `klass' object will be skipped and
+	  young (shady) `value' will be miss-collected. -> GC bug
+
+	  Lesson: The place of a WB is important.
+
+Tue Jun 18 22:01:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_call_method): ensure methods of type
+	  VM_METHOD_TYPE_ATTR_SET are called with 1 argument
+
+	* test/ruby/test_module.rb
+	  (TestModule#test_attr_writer_with_no_arguments): add test
+	  [ruby-core:55543] [Bug #8540]
+
+Tue Jun 18 22:36:23 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (gc_profile_record_flag): fix typo.
+
+Tue Jun 18 22:08:53 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/objspace/object_tracing.c: Return for ::allocation_generation
+
+Tue Jun 18 22:04:35 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/objspace/object_tracing.c: Document object_tracing methods.
+
+Tue Jun 18 21:58:17 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* gc.c: Rename rb_mObSpace -> rb_mObjSpace
+
+Tue Jun 18 20:55:05 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/objspace/objspace.c: Document ObjectSpace::InternalObjectWrapper.
+
+Tue Jun 18 20:39:04 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/objspace/object_tracing.c: Teach rdoc object_tracing.c [Bug #8537]
+
+Tue Jun 18 20:29:47 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/.document: add object_tracing.c to document file
+
+Tue Jun 18 20:20:27 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/objspace/objspace.c: rdoc on require to overview from r41355
+
+Tue Jun 18 18:39:58 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Check __int128.
+
+	* include/ruby/defines.h (BDIGIT_DBL): Use uint128_t if it is available.
+	  (BDIGIT): Use uint64_t if uint128_t is available.
+	  (SIZEOF_BDIGITS): Defined for above case.
+	  (BDIGIT_DBL_SIGNED): Ditto.
+	  (PRI_BDIGIT_PREFIX): Ditto.
+
+	* include/ruby/ruby.h (PRI_64_PREFIX): Defined.
+
+	* bignum.c (rb_big_pow): Don't use BITSPERDIG for the condition which
+	  rb_big_pow returns Float or Bignum.
+
+	[ruby-dev:47413] [Feature #8509]
+
+Tue Jun 18 16:43:44 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_heredoc_restore): clear lex_strterm always to get
+	  rid of marking recycled node.  this bug is revealed by r41372 with
+	  GC.stress=true.
+
+Tue Jun 18 12:53:25 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (nlz): Cast the result explicitly.
+	  (big2dbl): Don't assign BDIGIT values to int variable.
+
+Tue Jun 18 12:25:16 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big_xor): Non-effective code removed.
+
+Tue Jun 18 11:26:05 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_stat): add `generated_normal_object_count_types' for
+	  RGENGC_PROFILE >= 2.
+
+Tue Jun 18 11:02:18 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_mark_maybe): check to skip T_NONE.
+
+	* gc.c (markable_object_p): do not need to check (flags == 0) here.
+
+Tue Jun 18 10:17:37 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* variable.c (rb_autoload): fix WB miss.
+
+Tue Jun 18 04:20:18 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_mark_children): don't need to care about T_ZOMBIE here.
+
+Mon Jun 17 22:16:02 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* test/ruby/test_proc.rb (TestProc#test_block_given_method_to_proc):
+	  run test for r41359.
+
+Mon Jun 17 21:42:18 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* include/ruby/ruby.h, vm_eval.c (rb_funcall_with_block):
+	  new function to invoke a method with a block passed
+	  as an argument.
+
+	* string.c (sym_call): use the above function to avoid
+	  a block sharing. [ruby-dev:47438] [Bug #8531]
+
+	* vm_insnhelper.c (vm_yield_with_cfunc): don't set block
+	  in the frame.
+
+	* test/ruby/test_symbol.rb (TestSymbol#test_block_given_to_proc):
+	  run related tests.
+
+Mon Jun 17 21:33:27 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* include/ruby/intern.h, proc.c (rb_method_call_with_block):
+	  new function to invoke a Method object with a block passed
+	  as an argument.
+
+	* proc.c (bmcall): use the above function to avoid a block sharing.
+	  [ruby-core:54626] [Bug #8341]
+
+	* test/ruby/test_proc.rb (TestProc#test_block_persist_between_calls):
+	  run related tests.
+
+Mon Jun 17 20:53:21 2013  Tanaka Akira  <akr@fsij.org>
+
+	* loadpath.c (RUBY_REVISION): Defined to suppress revision.h
+	  inclusion actually.  r41352 removes the dependency.
+
+Mon Jun 17 18:15:57 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* ext/objspace/objspace.c: let rdoc know about objspace methods.
+	  Specify 'objspace' should be required. See #8537.
+
+Mon Jun 17 17:44:31 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* gc.c (ObjectSpace): is a module not a class.
+
+	* ext/objspace/objspace.c: try to include overview in rdoc,
+	  see #8537.
+
+Mon Jun 17 17:38:24 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* gc.c: fix example of ObjectSpace.define_finalizer in overview
+
+Mon Jun 17 16:59:53 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/tk/tkutil/tkutil.c: use rb_sprintf(), rb_id2str(), and
+	  rb_intern_str() instead of rb_intern() and RSTRING_PTR() with
+	  RB_GC_GUARD(), to prevent temporary objects from GC.
+	  [ruby-core:39000] [Bug #5199]
+
+Mon Jun 17 14:27:54 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* vm_backtrace.c: Update rdoc for Backtrace#label with @_ko1
+
+Mon Jun 17 13:04:01 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* tool/ifchange (until): Fix the condition, although harmless in
+	  this case.
+
+Mon Jun 17 11:50:29 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_mark_maybe): added. check `is_pointer_to_heap()' and
+	  type is not T_ZOMBIE.
+
+	* gc.c: use `gc_mark_maybe()'. T_ZOMBIE objects should not be pushed
+	  to the mark stack.
+
+Mon Jun 17 07:56:24 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_small_lshift): Renamed from bdigs_small_lshift.
+	  (bary_small_rshift): Renamed from bdigs_small_rshift.
+
+Mon Jun 17 07:38:48 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (absint_numwords_bytes): Removed.
+	  (rb_absint_numwords): Don't call absint_numwords_bytes.
+
+Sun Jun 16 23:14:58 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (BARY_ADD): New macro.
+	  (BARY_SUB): Ditto.
+	  (BARY_MUL): Ditto.
+	  (BARY_DIVMOD): Ditto.
+	  (BARY_ZERO_P): Ditto.
+	  (absint_numwords_generic): Use these macros.
+
+Sun Jun 16 21:41:39 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_2comp): Extracted from get2comp.
+	  (integer_unpack_num_bdigits): Extracted from
+	  rb_integer_unpack_internal.
+	  (bary_unpack_internal): Renamed from bary_unpack and support
+	  INTEGER_PACK_2COMP.
+	  (bary_unpack): New function to validate arguments and invoke
+	  bary_unpack_internal.
+	  (rb_integer_unpack_internal): Removed.
+	  (rb_integer_unpack): Invoke bary_unpack_internal.
+	  (rb_integer_unpack_2comp): Removed.
+
+	* internal.h (rb_integer_unpack_2comp): Removed.
+
+	* pack.c: Follow the above change.
+
+Sun Jun 16 18:41:42 2013  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (INTEGER_PACK_2COMP): Defined.
+	  (rb_integer_pack_2comp): Removed.
+
+	* bignum.c (bary_pack): Support INTEGER_PACK_2COMP.
+	  (rb_integer_pack): Invoke bary_pack directly.
+	  (rb_integer_pack_2comp): Removed.
+	  (rb_integer_pack_internal): Ditto.
+	  (absint_numwords_generic): Follow the above change.
+
+	* pack.c (pack_pack): Ditto.
+
+	* sprintf.c (rb_str_format): Ditto.
+
+Sun Jun 16 17:48:14 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (absint_numwords_generic): rb_funcall invocations removed.
+
+Sun Jun 16 16:04:38 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/config_files.rb: use URI.read to allow it runs with Ruby 1.8.5.
+
+Sun Jun 16 14:32:25 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_pack) Extracted from rb_integer_pack_internal.
+	  (absint_numwords_generic): Use bary_pack.
+
+Sun Jun 16 11:01:57 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* NEWS (XMLRPC::Client#http): Add.
+	  [ruby-core:55197] [Feature #8461]
+
+Sun Jun 16 10:38:45 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_add): New function.
+	  (bary_zero_p): Extracted from bigzero_p.
+	  (absint_numwords_generic): Use bary_zero_p and bary_add.
+	  (bary_mul): Fix an argument for bary_mul_single.
+	  (bary_divmod): Use size_t for arguments.
+
+Sun Jun 16 08:55:22 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigdivrem): Use a BDIGIT variable to store the return
+	  value of bigdivrem_single.
+
+Sun Jun 16 08:43:59 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_divmod): New function.
+	  (absint_numwords_generic): Use bary_divmod.
+	  (bigdivrem_num_extra_words): Extracted from bigdivrem.
+	  (bigdivrem_single): Ditto.
+	  (bigdivrem_normal): Ditto.
+	  (BIGDIVREM_EXTRA_WORDS): Defined.
+
+Sun Jun 16 05:51:51 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c: Fixup around GC by MALLOC.
+	  Add allocate size to malloc_increase before GC
+	  for updating limit in after_gc_sweep.
+	  Reset malloc_increase into garbage_collect()
+	  for preventing GC again soon.
+
+Sun Jun 16 05:15:36 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c: Add some columns to more detail profile.
+	  new columns: Allocated size, Prepare Time, Removing Objects, Empty Objects
+
+Sun Jun 16 02:04:40 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (gc_prof_timer_stop): Merge function codes of GC_PROFILE_MORE_DETAIL and !GC_PROFILE_MORE_DETAIL.
+	* gc.c (gc_prof_mark_timer_start): Ditto.
+	* gc.c (gc_prof_mark_timer_stop): Ditto.
+	* gc.c (gc_prof_sweep_slot_timer_start): Ditto.
+	* gc.c (gc_prof_sweep_slot_timer_stop): Ditto.
+	* gc.c (gc_prof_set_malloc_info): Ditto.
+	* gc.c (gc_prof_set_heap_info): Ditto.
+
+Sat Jun 15 23:50:24 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_sub): New function.
+	  (absint_numwords_generic): Use bary_sub.
+	  (bigsub_core): Skip unnecessary copy.
+
+Sat Jun 15 22:05:30 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mul): New function.
+	  (absint_numwords_generic): Use bary_mul.
+	  (bary_mul_single): Extracted from bigmul1_single.
+	  (bary_mul_normal): Extracted from bigmul1_normal.
+
+Sat Jun 15 20:13:46 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_unpack): Extracted from rb_integer_unpack_internal.
+	  (absint_numwords_generic): Use bary_unpack.
+	  (roomof): Defined.
+	  (bdigit_roomof): Defined.
+	  (BARY_ARGS): Defined.
+	  (bary_unpack): Declared.
+
+Sat Jun 15 19:35:04 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (absint_numwords_bytes): Make it static.
+	  (absint_numwords_small): Ditto.
+	  (absint_numwords_generic): Ditto.
+
+Sat Jun 15 17:14:32 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigmul1_normal): Shrink the result Bignum length.
+
+Sat Jun 15 10:19:42 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/bigdecimal/bigdecimal.c: Update overview formatting of headers
+
+Sat Jun 15 10:19:06 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/bigdecimal/bigdecimal.gemspec: Update authors
+
+Sat Jun 15 10:02:26 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bdigs_small_rshift): Extracted from big_rshift.
+	  (bigdivrem): Use bdigs_small_rshift.
+
+Sat Jun 15 08:37:28 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (eval_string_with_cref): propagate absolute path from the
+	  binding if it is given explicitly.  patch by Gat (Dawid Janczak) at
+	  [ruby-core:55123]. [Bug #8436]
+
+Sat Jun 15 02:40:18 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bdigs_small_lshift): Extracted from big_lshift.
+	  (bigdivrem): Use bdigs_small_lshift.
+
+Fri Jun 14 20:47:41 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigdivrem): Reduce number of digits before bignew() for div.
+
+Fri Jun 14 20:12:37 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigdivrem): Use bignew when ny == 1.
+
+Fri Jun 14 18:52:51 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (rb_iseq_compile_node): fix location of a `trace'
+	  instruction (b_return event).
+	  [ruby-core:55305] [ruby-trunk - Bug #8489]
+	  (need a backport to 2.0.0?)
+
+	* test/ruby/test_settracefunc.rb: add a test.
+
+Fri Jun 14 18:18:07 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* class.c, include/ruby/ruby.h: add write barriers for T_CLASS,
+	  T_MODULE, T_ICLASS.
+
+	* constant.h: constify rb_const_entry_t::value and file to detect
+	  assignment.
+
+	* variable.c, internal.h (rb_st_insert_id_and_value, rb_st_copy):
+	  added. update table with write barrier.
+
+	* method.h: constify some variables to detect assignment.
+
+	* object.c (init_copy): add WBs.
+
+	* variable.c: ditto.
+
+	* vm_method.c (rb_add_method): ditto.
+
+Fri Jun 14 14:33:47 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* NEWS: add a note for Module#using.
+
+Fri Jun 14 13:40:27 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* .travis.yml (before_script): update config files.
+
+	* common.mk ($(srcdir)/tool/config.{guess,sub}): use get-config_files.
+
+	* tool/config_files.rb: split get-config_files.
+
+	* common.mk (update-config_files): rule to download config files.
+
+	* tool/config.guess, tool/config.sub: remove and download from the
+	  upstream.
+
+	* tool/config_files.rb: download config files from GNU.
+
+Fri Jun 14 12:21:20 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (RUBY_SAFE_LEVEL_CHECK): suppress warnings
+	  "left-hand operand of comma expression has no effect", on gcc 4.4.
+
+Fri Jun 14 09:48:48 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* NEWS: add notes for $SAFE.
+
+	* doc/security.rdoc: remove the description of $SAFE=4.
+
+Fri Jun 14 00:14:29 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigdivrem): Zero test condition simplified.
+
+Thu Jun 13 23:43:11 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/bigdecimal/*: improve documentation, nodoc samples with @mrkn
+
+Thu Jun 13 23:02:14 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/xmlrpc/client.rb (XMLRPC::Client#http): Add reader for raw
+	  Net::HTTP. [ruby-core:55197] [Feature #8461]
+	  Reported by Herwin Weststrate. Thanks!!!
+
+Thu Jun 13 22:44:52 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/xmlrpc/client.rb (XMLRPC::Client#parse_set_cookies): Support
+	  multiple names in a response. [ruby-core:41711] [Bug #5774]
+	  Reported by Roman Riha. Thanks!!!
+	* test/xmlrpc/test_client.rb (XMLRPC::ClientTest#test_cookie_override):
+	  Add a test of the above case.
+
+Thu Jun 13 22:35:50 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/xmlrpc/client.rb (XMLRPC::Client#parse_set_cookies): Use
+	  guard style.
+
+Thu Jun 13 22:12:32 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/fileutils.rb (FileUtils#rmdir): fix traversal loop, not trying
+	  remove same directory only.
+
+Thu Jun 13 21:30:14 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (opt-dir), tool/ifchange: get rid of "alternate value"
+	  expansion for legacy sh.  [ruby-dev:47420] [Bug #8524]
+
+Thu Jun 13 21:24:09 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigdivrem): Refactored to use ALLOCV_N for temporary
+	  buffers.
+
+Thu Jun 13 18:54:11 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* bignum.c (integer_unpack_num_bdigits_generic): reorder terms (but not
+	  changed the intention of the expression) because VC++ reports a
+	  warning for it.  reported by ko1 via IRC.
+
+Thu Jun 13 18:53:14 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_thread.rb (test_thread_local_security): Don't create
+	  an unused thread.
+
+Thu Jun 13 18:34:20 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bigdivrem): Use nlz.
+
+Thu Jun 13 14:51:06 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (RUBY_SAFE_LEVEL_CHECK): check constant safe
+	  level at compile time.
+
+Thu Jun 13 14:39:08 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* test/-ext-/test_printf.rb, test/rss/test_parser.rb,
+	  test/ruby/test_array.rb, test/ruby/test_hash.rb,
+	  test/ruby/test_m17n.rb, test/ruby/test_marshal.rb,
+	  test/ruby/test_object.rb, test/ruby/test_string.rb: don't use
+	  untrusted?, untrust, and trust to avoid warnings in case $VERBOSE is
+	  true.
+
+Thu Jun 13 10:47:16 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* bootstraptest/test_autoload.rb, bootstraptest/test_method.rb:
+	  remove tests for $SAFE=4.
+
+	* lib/pp.rb: use taint instead of untrust to avoid warnings when
+	  $VERBOSE is set to true.
+
+Thu Jun 13 06:12:18 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (integer_unpack_num_bdigits_small): Fix a compile error on
+	  clang -Werror,-Wshorten-64-to-32
+	  Reported by Eric Hodel.  [ruby-core:55467] [Bug #8522]
+
+Thu Jun 13 05:32:13 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/socket/extconf.rb:  Enable RFC 3542 IPV6 socket options for OS X
+	  10.7+.  [ruby-trunk - Bug #8517]
+
+Thu Jun 13 00:17:18 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_integer_unpack_2comp): New function.
+	  (rb_integer_unpack_internal): Extracted from rb_integer_unpack and
+	  nlp_bits_ret argument added.
+	  (integer_unpack_num_bdigits_small): nlp_bits_ret argument added to
+	  return number of leading padding bits.
+	  (integer_unpack_num_bdigits_generic): Ditto.
+
+	* internal.h (rb_integer_unpack_2comp): Declared.
+
+	* pack.c (pack_unpack): Use rb_integer_unpack_2comp and
+	  rb_integer_unpack.
+
+Wed Jun 12 23:27:03 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* eval.c (mod_using): new method Module#using, which activates
+	  refinements of the specified module only in the current class or
+	  module definition.  [ruby-core:55273] [Feature #8481]
+
+	* test/ruby/test_refinement.rb: related test.
+
+Wed Jun 12 22:58:48 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* safe.c (rb_set_safe_level, safe_setter): raise an ArgumentError
+	  when $SAFE is set to 4.  $SAFE=4 is now obsolete.
+	  [ruby-core:55222] [Feature #8468]
+
+	* object.c (rb_obj_untrusted, rb_obj_untrust, rb_obj_trust):
+	  Kernel#untrusted?, untrust, and trust are now deprecated.
+	  Their behavior is same as tainted?, taint, and untaint,
+	  respectively.
+
+	* include/ruby/ruby.h (OBJ_UNTRUSTED, OBJ_UNTRUST): OBJ_UNTRUSTED()
+	  and OBJ_UNTRUST() are aliases of OBJ_TAINTED() and OBJ_TAINT(),
+	  respectively.
+
+	* array.c, class.c, debug.c, dir.c, encoding.c, error.c, eval.c,
+	  ext/curses/curses.c, ext/dbm/dbm.c, ext/dl/cfunc.c,
+	  ext/dl/cptr.c, ext/dl/dl.c, ext/etc/etc.c, ext/fiddle/fiddle.c,
+	  ext/fiddle/pointer.c, ext/gdbm/gdbm.c, ext/readline/readline.c,
+	  ext/sdbm/init.c, ext/socket/ancdata.c, ext/socket/basicsocket.c,
+	  ext/socket/socket.c, ext/socket/udpsocket.c,
+	  ext/stringio/stringio.c, ext/syslog/syslog.c, ext/tk/tcltklib.c,
+	  ext/win32ole/win32ole.c, file.c, gc.c, hash.c, io.c, iseq.c,
+	  load.c, marshal.c, object.c, proc.c, process.c, random.c, re.c,
+	  safe.c, string.c, thread.c, transcode.c, variable.c,
+	  vm_insnhelper.c, vm_method.c, vm_trace.c: remove code for
+	  $SAFE=4.
+
+	* test/dl/test_dl2.rb, test/erb/test_erb.rb,
+	  test/readline/test_readline.rb,
+	  test/readline/test_readline_history.rb, test/ruby/test_alias.rb,
+	  test/ruby/test_array.rb, test/ruby/test_dir.rb,
+	  test/ruby/test_encoding.rb, test/ruby/test_env.rb,
+	  test/ruby/test_eval.rb, test/ruby/test_exception.rb,
+	  test/ruby/test_file_exhaustive.rb, test/ruby/test_hash.rb,
+	  test/ruby/test_io.rb, test/ruby/test_method.rb,
+	  test/ruby/test_module.rb, test/ruby/test_object.rb,
+	  test/ruby/test_pack.rb, test/ruby/test_rand.rb,
+	  test/ruby/test_regexp.rb, test/ruby/test_settracefunc.rb,
+	  test/ruby/test_struct.rb, test/ruby/test_thread.rb,
+	  test/ruby/test_time.rb: remove tests for $SAFE=4.
+
+Wed Jun 12 22:18:23 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (integer_unpack_num_bdigits_generic): Rewritten without
+	  rb_funcall.
+	  (integer_unpack_num_bdigits_bytes): Removed.
+	  (rb_integer_unpack): integer_unpack_num_bdigits_bytes invocation
+	  removed.
+
+Wed Jun 12 20:18:03 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/xmlrpc/client.rb (XMLRPC::Client#parse_set_cookies): Extract.
+
+Wed Jun 12 18:19:41 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (validate_integer_pack_format): supported_flags argument
+	  added and validate given flags.
+	  (rb_integer_pack_internal): Specify supported_flags.
+	  (rb_integer_unpack): Ditto.
+
+Wed Jun 12 16:41:38 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_sort_bang): remove duplicated assertions.
+	  ARY_HEAP_PTR() implies ary not to be embedded.  [ruby-dev:47419]
+	  [Bug #8518]
+
+Wed Jun 12 12:44:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (io_getc): fix 7bit coderange condition, check if ascii read
+	  data instead of read length. [ruby-core:55444] [Bug #8516]
+
+Wed Jun 12 12:35:13 2013  Tanaka Akira  <akr@fsij.org>
+
+	* pack.c (pack_pack): Use rb_integer_pack_2comp.
+
+Wed Jun 12 12:07:04 2013  Tanaka Akira  <akr@fsij.org>
+
+	* sprintf.c (rb_str_format): Fix a dynamic format string.
+
+Wed Jun 12 12:04:09 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_uniq_bang): must not be modified once frozen even in
+	  a callback method.
+
+Wed Jun 12 12:03:43 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_sort_bang): must not be modified once frozen even in
+	  a callback method.
+
+Wed Jun 12 12:00:15 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (FL_SET_EMBED): shared object is frozen even when get
+	  unshared.
+
+	* array.c (rb_ary_modify): ARY_SET_CAPA needs unshared array.
+
+Wed Jun 12 07:32:01 2013  Tanaka Akira  <akr@fsij.org>
+
+	* random.c (rand_int): Use rb_big_uminus.
+
+Wed Jun 12 07:12:54 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* struct.c:  Improve documentation: replace "instance variable" with
+	  "member", recommend the use of a block to customize structs, note
+	  that member accessors are created, general cleanup.
+
+Wed Jun 12 06:35:01 2013  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (INTEGER_PACK_NEGATIVE): Defined.
+	  (rb_integer_unpack): sign argument removed.
+
+	* bignum.c (rb_integer_unpack): sign argument removed.
+	  Non-negative integers generated by default.
+	  INTEGER_PACK_NEGATIVE flag is used to generate non-positive integers.
+
+	* pack.c (pack_unpack): Follow the above change.
+
+	* random.c (int_pair_to_real_inclusive): Ditto.
+	  (make_seed_value): Ditto.
+	  (mt_state): Ditto.
+	  (limited_big_rand): Ditto.
+
+	* marshal.c (r_object0): Ditto.
+
+Wed Jun 12 00:07:46 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/xmlrpc/test_client.rb (XMLRPC::ClientTest#test_cookie_simple):
+	  Add a test for the extracted method.
+
+Tue Jun 11 23:56:24 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/xmlrpc/test_client.rb (XMLRPC::ClientTest::Fake::HTTP#started):
+	  Add a missing empty line.
+
+Tue Jun 11 23:37:19 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (validate_integer_pack_format): Don't require a word order
+	  flag if numwords is 1 or less.
+	  (absint_numwords_generic): Don't specify a word order for
+	  rb_integer_pack.
+
+	* hash.c (rb_hash): Ditto.
+
+	* time.c (v2w_bignum): Ditto.
+
+Tue Jun 11 23:01:57 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (validate_integer_pack_format): Refine error messages.
+
+Tue Jun 11 22:25:04 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (validate_integer_pack_format): numwords argument added.
+	  Move a varidation from rb_integer_pack_internal and rb_integer_unpack.
+	  (rb_integer_pack_internal): Follow above change.
+	  (rb_integer_unpack): Ditto.
+
+Tue Jun 11 20:52:43 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_integer_pack_internal): Renamed from rb_integer_pack
+	  and overflow_2comp argument added.
+	  (rb_integer_pack): Just call rb_integer_pack_internal.
+	  (rb_integer_pack_2comp): New function.
+
+	* internal.h (rb_integer_pack_2comp): Declared.
+
+	* sprintf.c (rb_str_format): Use rb_integer_pack and
+	  rb_integer_pack_2comp to format binary/octal/hexadecimal integers.
+	  (ruby_digitmap): Declared.
+	  (remove_sign_bits): Removed.
+	  (BITSPERDIG): Ditto.
+	  (EXTENDSIGN): Ditto.
+
+Tue Jun 11 16:15:03 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (ary_shrink_capa): shrink the capacity so it fits just with
+	  the length.
+
+	* array.c (ary_make_shared): release never used elements from frozen
+	  array to be shared.  [ruby-dev:47416] [Bug #8510]
+
+Tue Jun 11 12:49:01 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* doc/re.rdoc: Rename to doc/regexp.rdoc
+	* re.c: Update rdoc include for rename of file
+
+Tue Jun 11 07:13:13 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* eval_error.c (error_print): keep that errat is non-shady object.
+	  and guard errat from GC.
+
+Tue Jun 11 05:04:25 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* ext/racc/cparse/cparse.c: use rb_ary_entry() and
+	  rb_ary_subseq() instead of RARRAY_PTR.
+	  Based on a patch by Dirkjan Bussink. See Bug #8399.
+
+Mon Jun 10 23:51:51 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* array.c (rb_ary_new_from_values): fix a typo. pointed out by
+	  nagachika.
+	  http://d.hatena.ne.jp/nagachika/20130610/ruby_trunk_changes_41199_41220
+
+Mon Jun 10 21:51:03 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* ext/socket/raddrinfo.c (nogvl_getaddrinfo): Fix indent.
+
+Mon Jun 10 21:49:43 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* ext/socket/raddrinfo.c (nogvl_getaddrinfo): Add missing return
+	  value assignment.
+
+Mon Jun 10 20:58:11 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/socket/raddrinfo.c (nogvl_getaddrinfo): work around for Ubuntu
+	  13.04's getaddrinfo issue with mdns4. [ruby-list:49420]
+
+Mon Jun 10 19:34:39 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_integer_pack): Returns sign instead of words.
+	  (absint_numwords_generic): Follow the above change.
+	  (big2str_base_powerof2): Follow the above change.
+
+	* internal.h: Ditto.
+
+	* hash.c (rb_hash): Ditto.
+
+	* pack.c (pack_pack): Ditto.
+
+	* random.c (int_pair_to_real_inclusive): Ditto.
+	  (rand_init): Ditto.
+	  (random_load): Ditto.
+	  (limited_big_rand): Ditto.
+
+	* time.c (v2w_bignum): Ditto.
+
+Mon Jun 10 17:20:01 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rgengc_remember): permit promoted object.
+	  (rb_gc_writebarrier -> remember)
+
+Mon Jun 10 17:14:01 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (RVALUE_PROMOTE): fix parameter name (`x' to `obj')
+	  and make it inline function (like RVALUE_PROMOTE).
+
+Mon Jun 10 16:22:50 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (rb_ary_new_from_values): add assertion
+	  (ary should be young object).
+
+Mon Jun 10 16:05:59 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (wmap_mark): check allocation of `w->obj2wmap'.
+	  (no-allocation `w->obj2wmap' will be NULL pointer reference)
+
+Mon Jun 10 15:36:00 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval_error.c (error_print): use checking functions instead of
+	  catching exceptions.
+
+	* eval_error.c (error_print): restore errinfo for the case new
+	  exception raised while printing the message.  [ruby-core:55365]
+	  [Bug #8501]
+
+	* eval_error.c (error_print): reduce calling setjmp.
+
+Mon Jun 10 12:10:06 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (integer_unpack_num_bdigits_small: Extracted from
+	  rb_integer_unpack.
+	  (integer_unpack_num_bdigits_generic): Ditto.
+	  (integer_unpack_num_bdigits_bytes): New function.
+	  (rb_integer_unpack): Use above functions.
+	  Return a Bignum for INTEGER_PACK_FORCE_BIGNUM even when the result
+	  is zero.
+
+Mon Jun 10 05:38:23 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (absint_numwords_small): New function.
+	  (absint_numwords_generic): Use absint_numwords_small if possible.
+
+Mon Jun 10 01:07:57 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (absint_numwords_bytes): New function.
+	  (absint_numwords_generic): Extracted from rb_absint_numwords.
+	  (rb_absint_numwords): Use absint_numwords_bytes if possible.
+
+Sun Jun  9 21:33:15 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_absint_numwords): Return (size_t)-1 when overflow.
+	  Refine variable names.
+	  (rb_absint_size): Refine variable names.
+
+	* internal.h (rb_absint_size): Refine an argument name.
+	  (rb_absint_numwords): Ditto.
+
+Sun Jun  9 16:51:41 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_absint_numwords): Renamed from rb_absint_size_in_word.
+
+	* internal.h (rb_absint_numwords): Follow the above change.
+
+	* pack.c (pack_pack): Ditto.
+
+	* random.c (rand_init): Ditto.
+	  (limited_big_rand): Ditto.
+
+Sun Jun  9 14:41:05 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_integer_pack): numwords_allocated argument removed.
+
+	* internal.h (rb_integer_pack): Follow the above change.
+
+	* hash.c (rb_hash): Ditto.
+
+	* time.c (v2w_bignum): Ditto.
+
+	* pack.c (pack_pack): Ditto.
+
+	* random.c (int_pair_to_real_inclusive): Ditto.
+	  (rand_init): Ditto.
+	  (random_load): Ditto.
+	  (limited_big_rand): Ditto.
+
+Sun Jun  9 09:34:44 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big2str_base_powerof2): New function.
+	  (rb_big2str0): Use big2str_base_powerof2 if base is 2, 4, 8, 16 or 32.
+
+Sun Jun  9 00:59:04 2013  Tanaka Akira  <akr@fsij.org>
+
+	* hash.c (rb_hash): Use rb_integer_pack to obtain least significant
+	  long integer.
+
+Sat Jun  8 23:56:00 2013  Tanaka Akira  <akr@fsij.org>
+
+	* numeric.c (rb_num_to_uint): Use rb_absint_size instead of
+	  RBIGNUM_LEN.
+
+Sat Jun  8 22:53:45 2013  Tanaka Akira  <akr@fsij.org>
+
+	* marshal.c (r_object0): Use rb_integer_unpack.
+
+Sat Jun  8 22:18:57 2013  Tanaka Akira  <akr@fsij.org>
+
+	* time.c (v2w): Use rb_absint_size instead of RBIGNUM_LEN.
+
+Sat Jun  8 21:47:33 2013  Tanaka Akira  <akr@fsij.org>
+
+	* time.c (v2w_bignum): Simplified using rb_integer_pack.
+	  (rb_big_abs_find_maxbit): Removed.
+
+Sat Jun  8 21:03:40 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_absint_singlebit_p): New function.
+
+	* internal.h (rb_absint_singlebit_p): Declared.
+
+	* time.c (v2w_bignum): Use rb_absint_singlebit_p instead of
+	  rb_big_abs_find_minbit.
+	  (rb_big_abs_find_minbit): Removed.
+
+Sat Jun  8 20:24:23 2013  Tanaka Akira  <akr@fsij.org>
+
+	* time.c (rb_big_abs_find_maxbit): Use rb_absint_size.
+	  (bdigit_find_maxbit): Removed.
+
+Sat Jun  8 19:47:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* class.c (include_modules_at): invalidate method cache if included
+	  module contains constants
+
+	* test/ruby/test_module.rb: add test
+
+Sat Jun  8 19:31:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* random.c (limited_big_rand): declare rnd, lim and mask as uint32_t
+	  to avoid 64 bit to 32 bit shorten warnings.
+
+Sat Jun  8 19:23:53 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* win32/Makefile.sub: r41163 changed win32/win32.c and configure.in
+	  but it didn't treat about mswin32/mswin64, so fix it.
+	  NOTE: this needs a review by usa whether additional condition is
+	  required or not.
+
+Sat Jun  8 19:06:26 2013  Tanaka Akira  <akr@fsij.org>
+
+	* random.c: Unused RBignum internal accessing macros removed.
+
+Sat Jun  8 19:04:15 2013  Tanaka Akira  <akr@fsij.org>
+
+	* random.c (limited_big_rand): The argument, limit, is changed to
+	  VALUE.  Use rb_integer_pack and rb_integer_unpack.
+
+Sat Jun  8 17:15:18 2013  Tanaka Akira  <akr@fsij.org>
+
+	* random.c (make_seed_value): Fix the length given for
+	  rb_integer_unpack.
+
+Sat Jun  8 16:38:02 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_integer_unpack): Don't use rb_funcall if possible.
+
+	* random.c: Use uint32_t for elements of seed.
+	  (make_seed_value): Use rb_integer_unpack.
+
+Sat Jun  8 15:58:18 2013  Tanaka Akira  <akr@fsij.org>
+
+	* random.c (rand_init): Add a cast to fix clang compile error:
+	  random.c:410:32: error: implicit conversion loses integer precision:
+	  'size_t' (aka 'unsigned long') to 'int' [-Werror,-Wshorten-64-to-32]
+	  This cast doesn't cause a problem because len is not bigger than
+	  MT_MAX_STATE.
+
+Sat Jun  8 15:30:03 2013  Tanaka Akira  <akr@fsij.org>
+
+	* random.c (rand_init): Use rb_integer_pack.
+	  (roomof): Removed.
+
+Sat Jun  8 14:58:32 2013  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (INTEGER_PACK_FORCE_BIGNUM): New flag constant.
+
+	* bignum.c (rb_integer_unpack): Support INTEGER_PACK_FORCE_BIGNUM.
+
+	* random.c (int_pair_to_real_inclusive): Use
+	  INTEGER_PACK_FORCE_BIGNUM to use rb_big_mul instead of rb_funcall.
+
+Sat Jun  8 14:17:01 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: check for NET_LUID.  header macro varies across
+	  compiler versions.
+
+	* win32/win32.c: use configured macro.
+
+Sat Jun  8 11:59:55 2013  Tanaka Akira  <akr@fsij.org>
+
+	* random.c (int_pair_to_real_inclusive): Use rb_funcall instead of
+	  rb_big_mul because rb_integer_unpack can return a Fixnum.
+
+Sat Jun  8 11:17:39 2013  Tanaka Akira  <akr@fsij.org>
+
+	* random.c (int_pair_to_real_inclusive): Use rb_integer_pack.
+
+Sat Jun  8 09:49:42 2013  Tanaka Akira  <akr@fsij.org>
+
+	* random.c (int_pair_to_real_inclusive): Use rb_integer_unpack.
+
+Sat Jun  8 08:12:22 2013  Tanaka Akira  <akr@fsij.org>
+
+	* random.c (random_load): Use rb_integer_pack.
+
+Sat Jun  8 06:15:46 2013  Tanaka Akira  <akr@fsij.org>
+
+	* random.c (numberof): Removed.
+
+Sat Jun  8 06:00:47 2013  Tanaka Akira  <akr@fsij.org>
+
+	* random.c: include internal.h.
+	  (mt_state): Use rb_integer_unpack.
+
+Sat Jun  8 00:55:51 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (integer_pack_loop_setup): word_num_nailbytes_ret argument
+	  removed.
+	  (rb_integer_pack): Follow the above change.
+	  (rb_integer_unpack): Follow the above change.
+
+Sat Jun  8 00:37:32 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (validate_integer_pack_format): Renamed from
+	  validate_integer_format.
+	  (integer_pack_loop_setup): Renamed from integer_format_loop_setup.
+	  (integer_pack_fill_dd): Renamed from int_export_fill_dd.
+	  (integer_pack_take_lowbits): Renamed from int_export_take_lowbits.
+	  (integer_unpack_push_bits): Renamed from int_import_push_bits.
+
+Fri Jun  7 23:58:06 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_integer_pack): Arguments changed.  Use flags to
+	  specify word order and byte order.
+	  (rb_integer_unpack): Ditto.
+	  (validate_integer_format): Follow the above change.
+	  (integer_format_loop_setup): Ditto.
+
+	* pack.c: Ditto.
+
+	* internal.h: Ditto.
+	  (INTEGER_PACK_MSWORD_FIRST): Defined.
+	  (INTEGER_PACK_LSWORD_FIRST): Ditto.
+	  (INTEGER_PACK_MSBYTE_FIRST): Ditto.
+	  (INTEGER_PACK_LSBYTE_FIRST): Ditto.
+	  (INTEGER_PACK_NATIVE_BYTE_ORDER): Ditto.
+	  (INTEGER_PACK_LITTLE_ENDIAN): Ditto.
+	  (INTEGER_PACK_BIG_ENDIAN): Ditto.
+
+Fri Jun  7 22:10:50 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/rubygems/specification.rb (Gem::Specification#to_yaml):
+	  use Gem::NoAliasYAMLTree.create instead of Gem::NoAliasYAMLTree.new
+	  to suppress deprecated warnings.
+
+Fri Jun  7 21:39:39 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_integer_pack): Renamed from rb_int_export.
+	  (rb_integer_unpack): Renamed from rb_int_import.
+
+	* internal.h, pack.c: Follow the above change.
+
+Fri Jun  7 21:05:26 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (integer_format_loop_setup): Extracted from rb_int_export
+	  and rb_int_import.
+
+Fri Jun  7 19:48:38 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (validate_integer_format): Extracted from rb_int_export and
+	  rb_int_import.
+
+Fri Jun  7 19:23:15 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_absint_size): Use numberof.
+	  (rb_int_export): Ditto.
+
+Fri Jun  7 18:58:56 2013  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (numberof): Gathered from various files.
+
+	* array.c, math.c, thread_pthread.c, iseq.c, enum.c, string.c, io.c,
+	  load.c, compile.c, struct.c, eval.c, gc.c, parse.y, process.c,
+	  error.c, ruby.c: Remove the definitions of numberof.
+
+Fri Jun  7 18:24:39 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_absint_size): Declare a variable, i, just before used
+	  to suppress a warning.
+	  (rb_int_export): Ditto.
+
+Fri Jun  7 17:41:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* bignum.c (rb_absint_size): explicit cast to BDIGIT to avoid implicit
+	  64 bit to 32 bit shortening warning
+	* bignum.c (rb_int_export): ditto
+	* bignum.c (int_import_push_bits): ditto
+
+Fri Jun  7 17:31:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* internal.h (RCLASS_SUPER): use descriptive variable name
+	* internal.h (RCLASS_SET_SUPER): ditto
+
+Fri Jun  7 13:25:27 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/json/fbuffer/fbuffer.h (fbuffer_append_str): change the place of
+	  RB_GC_GUARD. it should be after the object is used.
+
+Fri Jun  7 13:22:43 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* gc.c (before_gc_sweep): noinline can also avoid the segv instead of
+	  -O0 of r41084. this way is expected less slow.
+
+Fri Jun  7 11:45:42 2013  Kenta Murata  <mrkn@cookpad.com>
+
+	* rational.c (numeric_quo): move num_quo in numeric.c to numeric_quo
+	  in rational.c to refer canonicalization state for mathn support.
+	  [ruby-core:41575] [Bug #5736]
+
+	* numeric.c (num_quo): ditto.
+
+	* test/test_mathn.rb: add a test for the change at r41109.
+
+Fri Jun  7 11:41:42 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: revert r41106.  size_t may not be unsigned
+
+	* bignum.c (rb_absint_size_in_word, rb_int_export, rb_int_import): use
+	  NUM2SIZET() and SIZET2NUM() already defined in ruby/ruby.h.
+
+Fri Jun  7 11:28:37 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c: use oldgen bitmap as initial mark bitmap when major gc.
+	  so can skip oldgen bitmap check around mark & sweep.
+	* gc.c (slot_sweep_body): change scan algorithm for performance:
+	  from object's pointer base to bitmap one.
+
+Fri Jun  7 11:25:56 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c: introduce oldgen bitmap for preparing performance tuning.
+
+Fri Jun  7 11:20:57 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (MARKED_IN_BITMAP, MARK_IN_BITMAP, CLEAR_IN_BITMAP): bring
+	  bitmap macros in one place, and introduce BITMAP_BIT.
+
+Fri Jun  7 11:18:35 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* array.c (ary_new): change order of allocation in order
+	  to remove FL_OLDGEN operation.
+
+Fri Jun  7 11:16:28 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* tool/rdocbench.rb: add gc total time information.
+
+Fri Jun  7 10:12:01 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: remove "Sunny" terminology.
+	  "Sunny" doesn't mean antonym of "Shady" (questionable, doubtful, etc).
+	  Instead of "Sunny", use "non-shady" or "normal".
+
+Fri Jun  7 09:29:33 2013  Kenta Murata  <mrkn@cookpad.com>
+
+	* bignum.c (rb_int_import): explicitly casting BDIGIT_DBL to BDIGIT
+	  to prevent warning.
+
+Fri Jun  7 07:29:33 2013  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (rb_int_export): countp argument is split into
+	  wordcount_allocated and wordcount.
+
+	* bignum.c (rb_int_export): Follow the above change.
+
+	* pack.c (pack_pack): Ditto.
+
+Fri Jun  7 07:17:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* NEWS: describe a compatibility issue of Numeric#quo
+	  introduced at r41109.
+
+Fri Jun  7 07:15:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* NEWS: fix style.
+
+Fri Jun  7 06:48:17 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* numeric.c: remove unused ID id_to_r introduced in r41109.
+
+Fri Jun  7 06:15:31 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_int_import): New function.
+	  (int_import_push_bits): Ditto.
+
+	* internal.h (rb_int_import): Declared.
+
+	* pack.c (pack_unpack): Use rb_int_import for BER compressed integer.
+
+Thu Jun  6 22:24:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* numeric.c (num_quo): Use to_r method to convert the receiver to
+	  rational.  [ruby-core:41575] [Bug #5736]
+
+	* test/ruby/test_numeric.rb: add a test for the above change.
+
+Thu Jun  6 20:40:17 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Invoke RUBY_REPLACE_TYPE for size_t.
+	  Don't invoke RUBY_CHECK_PRINTF_PREFIX for size_t to avoid conflict
+	  with RUBY_REPLACE_TYPE.
+
+	* internal.h (rb_absint_size): Declared.
+	  (rb_absint_size_in_word): Ditto.
+	  (rb_int_export): Ditto.
+
+	* bignum.c (rb_absint_size): New function.
+	  (rb_absint_size_in_word): Ditto.
+	  (int_export_fill_dd): Ditto.
+	  (int_export_take_lowbits): Ditto.
+	  (rb_int_export): Ditto.
+
+	* pack.c (pack_pack): Use rb_int_export for BER compressed integer.
+
+Thu Jun  6 19:31:33 2013  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: fixed coding error [ruby-core:55337].
+	  reported by Riley Lynch.
+
+Thu Jun  6 14:16:37 2013  Narihiro Nakamura  <authornari@gmail.com>
+
+	* ext/objspace/object_tracing.c: rename allocation_info to
+	  lookup_allocation_info. At times I confused "struct
+	  allocation_info" with "function allocation_info".
+
+Thu Jun  6 13:57:06 2013  Narihiro Nakamura  <authornari@gmail.com>
+
+	* ext/objspace/object_tracing.c: allocation_info function isn't
+	  called by any other file.
+
+Thu Jun  6 09:41:00 2013  Kenta Murata  <mrkn@cookpad.com>
+
+	* numeric.c (num_quo): should return a Float for a Float argument.
+	  [ruby-dev:44710] [Bug #5515]
+
+	* test/ruby/test_fixnum.rb: Add an assertion for the above change.
+
+	* test/ruby/test_bignum.rb: ditto.
+
+Thu Jun  6 00:59:44 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (gc_mark): get rid of pushing useless objects.
+	* gc.c (rgengc_rememberset_mark): bypass gc_mark() in order to push
+	  sunny old object at minor gc.
+	* gc.c (gc_mark_children): move sunny old check to gc_mark().
+	* gc.c (rgengc_check_shady): remove DEMOTE that already unnecessary.
+	* gc.c (rb_gc_writebarrier): ditto.
+
+	  change sunny old check point in order to save mark stack and
+	  remove unnatural rest_sweep & demote.
+
+Thu Jun  6 00:52:42 2013  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* gc.c (rgengc_rememberset_mark): change scan algorithm for performance:
+	  from object's pointer base to bitmap one.
+
+Thu Jun  6 00:30:04 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* win32/win32.c (NET_LUID): define it on MinGW32.
+	  mingw-w64 has NET_LUID but mingw32 (mingw.org) still doesn't have
+	  NET_LUID. reported by taco on IRC
+
+Thu Jun  6 00:05:08 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* string.c (String#b): Allow code range scan to happen later so
+	  ascii_only? on a result string returns the correct value.
+	  [ruby-core:55315] [Bug #8496]
+
+Wed Jun  5 22:40:42 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/imap.rb (capability_response): should ignore trailing
+	  spaces.  Thanks, Peter Kovacs.  [ruby-core:55024] [Bug #8415]
+
+	* test/net/imap/test_imap_response_parser.rb: related test.
+
+Wed Jun  5 21:17:08 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (big_fdiv): Use nlz() instead of bdigbitsize().
+	  (bdigbitsize): Removed.
+
+Wed Jun  5 20:32:00 2013  Kenta Murata  <mrkn@cookpad.com>
+
+	* include/ruby/ruby.h: fix alignment in comment.
+
+Wed Jun  5 20:05:29 2013  Tanaka Akira  <akr@fsij.org>
+
+	* random.c (int_pair_to_real_inclusive): Add a cast to BDIGIT.
+	  (random_load): Fix shift width for fixnums.
+	  Re-implement bignum extraction without ifdefs.
+
+Wed Jun  5 15:26:10 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* gc.c (before_gc_sweep): don't optimize it to avoid segv on Ubuntu
+	  10.04 gcc 4.4.
+	  http://u32.rubyci.org/~chkbuild/ruby-trunk/log/20130527T190301Z.diff.html.gz
+
+Wed Jun  5 09:46:46 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* test/fileutils/test_fileutils.rb (TestFileUtils#test_mkdir): add
+	  EACCES for Windows.
+
+Wed Jun  5 08:13:37 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big_pow): Don't need to multiply SIZEOF_BDIGITS.
+	  Use nlz instead of bitlength_bdigit.
+	  (bitlength_bdigit): Removed.
+
+Wed Jun  5 07:14:18 2013  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c (d_lite_cmp, d_lite_equal): simplified.
+
+Wed Jun  5 07:07:01 2013  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: fixed a bug [ruby-core:55295].  reported
+	  by Riley Lynch.
+
+Wed Jun  5 06:44:08 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems 2.0.3
+
+	* test/rubygems:  Tests for the above.
+
+	* NEWS:  Added RubyGems 2.0.3 note.
+
+Wed Jun  5 06:35:15 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/marshal.rdoc:  Add description of Marshal format.
+
+Wed Jun  5 01:16:09 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* array.c (Array#+): fix documentation example.
+	  Patch by Logan Serman. [Fixes GH-324]
+
+Wed Jun  5 00:21:54 2013  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* lib/irb/lc/ja/help-message: update help messages.
+	  following r41028. [ruby-dev:46707] [Feature #7510]
+
+Wed Jun  5 00:09:32 2013  Tanaka Akira  <akr@fsij.org>
+
+	* marshal.c (r_object0): Generalize a round up expression.
+	  Use BDIGIT instead of int.
+
+Tue Jun  4 23:44:02 2013  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* object.c (rb_Hash): fix docs. patched by Stefan Sch"ussler.
+	  [ruby-core:55299] [Bug #8487]
+
+Tue Jun  4 23:16:49 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* lib/irb/completion.rb: Use %w literal construction for long lists.
+	  Patch by Dave Goodchild. [Fixes GH-299]
+
+Tue Jun  4 23:08:42 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* ext/objspace/objspace.c: improve wording and remove duplicated comment.
+	  Based on a patch by Dave Goodchild. [Fixes GH-299]
+
+Tue Jun  4 18:41:47 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bitlength_bdigit): Fix an off-by-one error.
+
+Tue Jun  4 15:30:00 2013  Kenta Murata  <mrkn@cookpad.com>
+
+	* ext/bigdecimal/lib/bigdecimal/util.rb (Float#to_d): fix the number
+	  of figures.  Patch by Vipul A M <vipulnsward@gmail.com>.
+	  https://github.com/ruby/ruby/pull/323  fix GH-323
+
+	* test/bigdecimal/test_bigdecimal_util.rb: fix for the above change.
+
+Tue Jun  4 00:44:27 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* test/fileutils/test_fileutils.rb (TestFileUtils#test_mkdir): add
+	  EEXIST for Linux. (suggested by nurse)
+
+Mon Jun  3 23:58:19 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* lib/fileutils.rb (FileUtils.rmdir): use remove_tailing_slash.
+	* test/fileutils/test_fileutils.rb: test for above.
+
+Mon Jun  3 23:47:55 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bitlength_bdigit): New function.
+	  (rb_big_pow): Use bitlength_bdigit instead of ffs.
+
+Mon Jun  3 23:11:19 2013  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* lib/fileutils.rb: fix behavior when mkdir/mkdir_p accepted "/".
+	* test/fileutils/test_fileutils.rb: add test for above change.
+	  Patched by Mitsunori Komatsu. [GH-319]
+
+Mon Jun  3 19:02:20 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (is_hfs): use the file descriptor instead of a path.
+
+Mon Jun  3 07:15:17 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: removes AC_CHECK_FUNCS(readdir_r). readdir_r()
+	  is only used from dir.c and it doesn't need readdir_r().
+	* configure.in (SIZEOF_STRUCT_DIRENT_TOO_SMALL): removed. It is
+	  only used for readdir_r.
+	* dir.c: removes NAME_MAX_FOR_STRUCT_DIRENT. It is not right way
+	  to detect maximum length of path len. POSIX require to use
+	  fpathconf(). IOW, it might have lead to make a vulnerability
+	  using stack smashing. Moreover, readdir() works enough for our
+	  usage.
+	* dir.c (READDIR): removes an implementation which uses
+	  readdir_r() and parenthesize in a macro body correctly.
+	* dir.c (dir_read): removes IF_HAVE_READDIR_R(DEFINE_STRUCT_DIRENT
+	  entry), it is used only for readdir_r().
+	* dir.c (dir_each): ditto.
+	* dir.c (glob_helper): ditto.
+
+	* dir.c (READDIR): removes entry and dp argument.
+	* dir.c (dir_read): adjust for the above change.
+	* dir.c (dir_each): ditto.
+	* dir.c (glob_helper): ditto.
+
+Mon Jun  3 03:40:29 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_yield_setup_block_args): partially revert r41019.
+	  The code is not useless.
+
+Mon Jun  3 01:25:25 2013  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* test/socket/test_sockopt.rb: change test name. follow r41037.
+
+Mon Jun  3 01:08:43 2013  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* test/rinda/test_rinda.rb: rename functions introduced in r41009.
+
+Sun Jun  2 23:33:42 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* enc/trans/japanese_euc.trans, test/ruby/test_transcode.rb,
+	  tool/transcode-tblgen.rb: change EUC-JP-2004 to EUC-JIS-2004.
+	  This is follow up to changes in r41024.
+
+Sun Jun  2 22:44:42 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/socket/option.c: rename functions introduced in r41009
+	  s/ip/ipv4/g because they are ipv4 functions.
+	  (there's a policy that the name "ip" is for methods which supports
+	   both ipv4 and ipv6)
+
+Sun Jun  2 16:15:29 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dln_find.c (dln_find_exe, dln_find_file): remove deprecated
+	  non-reentrant functions.
+
+Sun Jun  2 15:04:35 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/cgi/util.rb, lib/erb.rb: Use String#b [Feature #8394] by znz
+
+Sun Jun  2 14:10:21 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/irb/lc/help-message: Apply english updates for irb --help #7510
+
+Sun Jun  2 12:03:58 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* range.c: Fix rdoc on Range#bsearch [Bug #8242] [ruby-core:54143]
+
+Sun Jun  2 02:08:37 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* enc/euc_jp.c: fix typo: the name of EUC-JIS-2004.
+
+Sat Jun  1 23:17:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* vm_eval.c (rb_mod_module_eval): mention in docs that arguments passed
+	  to the method are passed to the block
+
+Sat Jun  1 17:58:13 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/set.rb (Set#freeze, taint, untaint): Save a "self" by
+	  utilizing super returning self, and add tests while at it.
+
+Sat Jun  1 17:24:47 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_set_arguments): not a simple single argument if any
+	  keyword arguments exist.  [ruby-core:55203] [Bug #8463]
+
+	* vm_insnhelper.c (vm_yield_setup_block_args): split single parameter
+	  if any keyword arguments exist, and then extract keyword arguments.
+	  [ruby-core:55203] [Bug #8463]
+
+Sat Jun  1 11:16:22 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (rb_exc_new_cstr): rename from rb_exc_new2.
+
+	* error.c (rb_exc_new_str): rename from rb_exc_new3.
+
+Sat Jun  1 10:13:17 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_new[2-5], rb_{tainted,usascii}_str_new2),
+	  (rb_str_buf_new2): remove old interfaces.
+
+Sat Jun  1 08:00:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/zlib/zlib.c (gzfile_read, gzfile_read_all, gzfile_getc),
+	  (gzreader_gets): check EOF.  [ruby-core:55220] [Bug #8467]
+
+Sat Jun  1 07:32:15 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c: Use BDIGIT type for hbase.
+
+Sat Jun  1 02:37:35 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/socket/option.c (sockopt_s_byte): constructor of the sockopt
+	  whose value's is byte.
+
+	* ext/socket/option.c (sockopt_byte): getter for above.
+
+	* ext/socket/option.c (inspect_byte): inspect for above.
+
+	* ext/socket/option.c (sockopt_s_ip_multicast_loop): constructor of
+	  the sockopt whose optname is IP_MULTICAST_LOOP.
+
+	* ext/socket/option.c (sockopt_ip_multicast_loop): getter for above.
+
+	* ext/socket/option.c (sockopt_s_ip_multicast_ttl): constructor of
+	  the sockopt whose optname is IP_MULTICAST_TTL.
+
+	* ext/socket/option.c (sockopt_ip_multicast_ttl): getter for above.
+
+	* ext/socket/option.c (sockopt_inspect): use above.
+
+Sat Jun 01 01:50:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_power): use rb_dbl2big
+	  to convert a double value to a Bignum.
+
+Sat Jun  1 00:19:50 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (calc_hbase): Make hbase the maximum power of base
+	  representable in BDIGIT.
+
+Fri May 31 23:56:13 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (calc_hbase): Extracted from rb_big2str0.
+
+Fri May 31 23:22:24 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c: Don't hard code SIZEOF_BDIGITS for log_base(hbase).
+	  (big2str_orig): hbase_numdigits argument added.
+	  (big2str_karatsuba): Ditto.
+	  (rb_big2str0): Calculate hbase_numdigits.
+
+Fri May 31 17:57:21 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* process.c: Improve Process::exec documentation
+
+Fri May 31 17:26:42 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (rb_funcallv): add better names of rb_funcall2.
+
+	* vm_eval.c (rb_funcallv_public): ditto for rb_funcall3.
+
+Fri May 31 17:04:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_new_capa): add better names of rb_ary_new2.
+
+	* array.c (rb_ary_new_from_args): ditto for rb_ary_new3.
+
+	* array.c (rb_ary_new_from_values): ditto for rb_ary_new4.
+
+Fri May 31 16:35:44 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (HAVE_ATTRIBUTE_FUNCTION_ALIAS): define to tell if
+	  alias attribute is available.
+
+Fri May 31 16:03:23 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* object.c, proc.c: s/call_seq/call-seq in rdoc. [Fixes GH-322]
+
+Fri May 31 15:56:36 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/openssl/ossl_ssl.c: Add missing paren in rdoc [Fixes GH-321]
+
+Fri May 31 11:58:24 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_method.c (set_visibility): extract from rb_mod_public(),
+	  rb_mod_protected() and rb_mod_private().
+
+Thu May 30 19:47:42 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* vm_insnhelper.c (vm_callee_setup_keyword_arg,
+	  vm_callee_setup_arg_complex): consider a hash argument for keyword
+	  only when the number of arguments is more than the expected
+	  mandatory parameters.  [ruby-core:53199] [ruby-trunk - Bug #8040]
+
+	* test/ruby/test_keyword.rb: update a test for above.
+
+Thu May 30 17:55:04 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* process.c: RDoc on Process.spawn
+
+Thu May 30 00:08:14 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_profile_enable): rest_sweep() to finish last GC.
+	  Profiling record is allocated at first of marking phase.
+	  Enable at lazy sweeping may cause an error (SEGV).
+
+Wed May 29 10:33:27 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* hash.c: fix WB bug.
+	  (1) Hash's key also needs WB.
+	  (2) callback parameter *key and *value of st_update() is not a
+	      storage of st_table itself (only local variable). So that
+	      OBJ_WRITE() is not suitable, especially for `!existing'.
+	      OBJ_WRITTEN() is used instead of OBJ_WRITE().
+
+Tue May 28 12:31:21 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/object_tracing.c: fix a bug reported at
+	  "[ruby-core:55182] [ruby-trunk - Bug #8456][Open] Sugfault in Ruby Head"
+	  Care about the case TracePoint#path #=> `nil'.
+
+	* ext/objspace/object_tracing.c: add two new methods:
+	  * ObjectSpace.allocation_class_path(o)
+	  * ObjectSpace.allocation_method_id(o)
+	  They are not useful for Object.new because they are always
+	  "Class" and :new.
+	  To trace more useful information, we need to maintain call-tree
+	  using call/return hooks, which is implemented by
+	  ll-prof <http://sunagae.net/wiki/doku.php?id=software:llprof>
+
+	* test/objspace/test_objspace.rb: add a test.
+
+Tue May 28 11:30:02 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/extmk.rb (extmake): leave makefiles untouched if the content is
+	  not changed, to get rid of unnecessary re-linking.
+
+Tue May 28 03:11:02 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/gc_hook.c, ext/objspace/objspace.c: add new methods to
+	  hook GC invocation.
+	  * ObjectSpace.after_gc_start_hook=(proc)
+	  * ObjectSpace.after_gc_end_hook=(proc)
+
+	  Note that hooks are not kicked immediately. Procs are kicked
+	  at postponed_job.
+
+	  This feature is a sample of new internal event and
+	  rb_postponed_job API.
+
+Tue May 28 02:56:15 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_stat): remove wrong rest_sweep().
+
+Tue May 28 02:44:23 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (garbage_collect_body): fix GC_ENABLE_LAZY_SWEEP condition.
+
+	* gc.c (GC_NOTIFY): move debug print location and use stderr instead
+	  of stdout.
+
+Tue May 28 02:07:21 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c (rb_postponed_job_register_one): fix iteration bug.
+
+	* ext/-test-/postponed_job/postponed_job.c,
+	  test/-ext-/postponed_job/test_postponed_job.rb: add a test.
+
+Tue May 28 00:34:23 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h, gc.c: add new internal event
+	  RUBY_INTERNAL_EVENT_GC_END. This event invokes at the end of
+	  after_sweep().
+	  Time chart with lazy sweep is:
+	    (1) Kick RUBY_INTERNAL_EVENT_GC_START
+	    (2) [gc_marks()]
+	    (3) [lazy_sweep()]
+	    (4) [... run Ruby program (mutator) with lazy_sweep() ...]
+	    (5) [after_sweep()]
+	    (6) Kick RUBY_INTERNAL_EVENT_GC_END
+	    (7) [... run Ruby program (mutator), and go to (1) ...]
+	  Time chart without lazy sweep (GC.start, etc) is:
+	    (1) Kick RUBY_INTERNAL_EVENT_GC_START
+	    (2) [gc_marks()]
+	    (3) [gc_sweep()]
+	    (4) [after_sweep()]
+	    (5) Kick RUBY_INTERNAL_EVENT_GC_END
+	    (6) [... run Ruby program (mutator), and go to (1) ...]
+
+	* ext/-test-/tracepoint/tracepoint.c,
+	  test/-ext-/tracepoint/test_tracepoint.rb: modify a test.
+
+Tue May 28 00:18:57 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c (rb_postponed_job_flush): remove a wrong comment.
+
+Mon May 27 22:09:33 2013  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/ruby.h (RHASH_SIZE): Add a cast to suppress a
+	  warning, comparison between signed and unsigned integer
+	  expressions [-Wsign-compare], on ILP32.
+
+Mon May 27 19:25:47 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: rename RUBY_INTERNAL_EVENT_FREE to
+	  RUBY_INTERNAL_EVENT_FREEOBJ.
+
+	* ext/-test-/tracepoint/tracepoint.c,
+	  ext/objspace/object_tracing.c,
+	  gc.c, vm_trace.c: catch up this change.
+
+Mon May 27 18:57:28 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/objspace.c: support ObjectSpace.trace_object_allocations.
+	  Read the following test to know HOWTO.
+	  This feature is a sample of RUBY_INTERNAL_EVENT.
+
+	* test/objspace/test_objspace.rb: add a test.
+
+	* ext/objspace/object_tracing.c: ditto.
+
+	* gc.c (rb_gc_count): add. This function returns GC count.
+
+	* internal.h: add decl. of rb_gc_count(). Same as `GC.count'.
+
+Mon May 27 17:33:28 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/rbinstall.rb (install_recursive): add maxdepth option.
+
+	* tool/rbinstall.rb (bin-comm): limit depth of bindir and reject empty
+	  files.  [ruby-core:55101] [Bug #8432]
+
+Mon May 27 16:16:18 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c (rb_postponed_job_flush, rb_postponed_job_register): use
+	  ruby_xmalloc/xfree. It is safe during GC.
+
+Mon May 27 09:24:03 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* test/-ext-/postponed_job/test_postponed_job.rb: fix typo and class name.
+
+Mon May 27 09:05:17 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h, gc.c, vm_trace.c: add internal events.
+	  * RUBY_INTERNAL_EVENT_NEWOBJ: object created.
+	  * RUBY_INTERNAL_EVENT_FREE: object freed.
+	  * RUBY_INTERNAL_EVENT_GC_START: GC started.
+	  And rename `RUBY_EVENT_SWITCH' to `RUBY_INTERNAL_EVENT_SWITCH'.
+
+	  Internal events can not invoke any Ruby program because the tracing
+	  timing may be critical (under huge restriction).
+	  These events can be hooked only by C-extensions.
+	  We recommend to use rb_postponed_job_register() API to call Ruby
+	  program safely.
+
+	  This change is mostly written by Aman Gupta (tmm1).
+	  https://bugs.ruby-lang.org/issues/8107#note-12
+	  [Feature #8107]
+
+	* include/ruby/debug.h, vm_trace.c: added two new APIs.
+	  * rb_tracearg_event_flag() returns rb_event_flag_t of this event.
+	  * rb_tracearg_object() returns created/freed object.
+
+	* ext/-test-/tracepoint/extconf.rb,
+	  ext/-test-/tracepoint/tracepoint.c,
+	  test/-ext-/tracepoint/test_tracepoint.rb: add a test.
+
+Mon May 27 08:38:21 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/-test-/postponed_job/postponed_job.c: fix `init' function name.
+
+Mon May 27 06:22:41 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/debug.h, vm_trace.c: add rb_postponed_job API.
+	  Postponed jobs are registered with this API. Registered jobs
+	  are invoked at `ruby-running-safe-point' as soon as possible.
+	  This timing is completely same as finalizer timing.
+
+	  There are two APIs:
+	  * rb_postponed_job_register(flags, func, data): register a
+	    postponed job with data. flags are reserved.
+	  * rb_postponed_job_register_one(flags, func, data): same as
+	    `rb_postponed_job_register', but only one `func' job is
+	    registered (skip if `func' is already registered).
+
+	  This change is mostly written by Aman Gupta (tmm1).
+	  https://bugs.ruby-lang.org/issues/8107#note-15
+	  [Feature #8107]
+
+	* gc.c: use postponed job API for finalizer.
+
+	* common.mk: add dependency from vm_trace.c to debug.h.
+
+	* ext/-test-/postponed_job/extconf.rb, postponed_job.c,
+	  test/-ext-/postponed_job/test_postponed_job.rb: add a test.
+
+	* thread.c: implement postponed API.
+
+	* vm_core.h: ditto.
+
+Mon May 27 02:26:02 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_stat): collect promote_operation_count and
+	  types (RGENGC_PROFILE >= 2).
+
+Mon May 27 01:40:58 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_stat): collect shade_operation_count,
+	  remembered_sunny_object_count and remembered_shady_object_count
+	  for each types when RGENGC_PROFILE >= 2.
+	  They are informative for optimization.
+
+Mon May 27 01:15:22 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* hash.c (rb_hash_tbl_raw), internal.h: added.
+	  Returns st_table without shading hash.
+
+	* array.c: use rb_hash_tbl_raw() for read-only purpose.
+
+	* compile.c (iseq_compile_each): ditto.
+
+	* gc.c (count_objects): ditto.
+
+	* insns.def: ditto.
+
+	* process.c: ditto.
+
+	* thread.c (clear_coverage): ditto.
+
+	* vm_insnhelper.c: ditto.
+
+Mon May 27 00:31:09 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/make-snapshot: use ENV["AUTOCONF"] instead of directly using
+	  literal "autoconf".
+
+Sun May 26 21:31:46 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* hash.c, include/ruby/ruby.h: support WB protected hash.
+	  * constify RHash::ifnone and make new macro RHASH_SET_IFNONE().
+	  * insert write barrier for st_update().
+
+	* include/ruby/intern.h: declare rb_hash_set_ifnone(hash, ifnone).
+
+	* marshal.c (r_object0): use RHASH_SET_IFNONE().
+
+	* ext/openssl/ossl_x509name.c (Init_ossl_x509name): ditto.
+
+Sat May 25 23:22:38 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* test/fiddle/test_c_struct_entry.rb,
+	  test/fiddle/test_c_union_entity.rb,
+	  test/fiddle/test_cparser.rb, test/fiddle/test_func.rb,
+	  test/fiddle/test_handle.rb, test/fiddle/test_import.rb,
+	  test/fiddle/test_pointer.rb: don't run test if the system
+	  don't support fiddle.
+
+Sat May 25 21:29:34 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/pty/pty.c (get_device_once): FreeBSD 10-current and 9-stable
+	  added O_CLOEXEC support to posix_openpt, so assume FreeBSD 9.2 or
+	  later supports it.
+	  http://www.freebsd.org/cgi/query-pr.cgi?pr=162374
+
+Sat May 25 18:46:23 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* proc.c (rb_method_entry_min_max_arity): fix missing break in switch.
+	  This was introduced in r38236, which is not intentional apparently.
+	  This has caused no actual harm because VM_METHOD_TYPE_OPTIMIZED is
+	  not used except for OPTIMIZED_METHOD_TYPE_SEND, but may do in
+	  future.  Coverity Scan found this inadequacy.
+
+Sat May 25 18:08:06 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* dir.c (bracket): fix copy-paste error.  When the first and last
+	  characters of fnmatch range have different length, fnmatch may
+	  have wrongly matched a path that does not really match.
+	  Coverity Scan found this bug.
+
+Sat May 25 17:06:25 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (after_gc_sweep): reduce full GC timing.
+
+Sat May 25 11:28:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* variable.c (set_const_visibility): return without clearing method
+	  cache if no arguments.
+
+	* vm_method.c (set_method_visibility): ditto.
+
+Sat May 25 11:27:32 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_method.c (set_method_visibility): quote unprintable method name.
+
+Sat May 25 11:24:24 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval.c (rb_frame_callee): returns the called name of the current
+	  frame, not the previous frame.
+
+	* eval.c (prev_frame_callee, prev_frame_func): rename and make static,
+	  as these are used by rb_f_method_name() and rb_f_callee_name() only.
+
+	* variable.c (set_const_visibility): use the called name.
+
+Sat May 25 08:58:23 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_quote_unprintable): check if argument is a string.
+
+Fri May 24 19:32:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* variable.c (set_const_visibility): use rb_frame_this_func() instead
+	  of rb_frame_callee() for getting the name of the called method
+
+	* test/ruby/test_module.rb: add test for private_constant with no args
+
+Fri May 24 18:53:10 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: do major/full GC when:
+	  * number of oldgen object is bigger than twice of
+	    number of oldgen object at last full GC.
+	  * number of remembered shady object is bigger than twice of
+	    number of remembered shady object at last full GC.
+	  * number of oldgen object and remembered shady object is bigger
+	    than half of total object space.
+	  (please fix my English!)
+
+Fri May 24 17:07:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* intern.h: remove dangling rb_class_init_copy declaration
+	  [ruby-core:55120] [Bug #8434]
+
+Fri May 24 16:31:23 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/strscan/strscan.c (strscan_aref): raise error if given
+	  name reference is not found.
+
+Fri May 24 15:48:18 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (after_gc_sweep, garbage_collect_body): do major GC (full GC)
+	  before extending heaps.
+	  TODO: do major GC when there are many old (promoted) objects.
+
+	* gc.c (after_gc_sweep): remove TODO comments.
+
+Fri May 24 11:04:00 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (LIBRUBY_RPATHFLAGS): do not append -L option with
+	  runtime library directory if cross compiling, but only -R option.
+	  runtime path makes no sense on the host system.  [ruby-dev:47363]
+	  [Bug #8443]
+
+Fri May 24 02:57:17 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* object.c (rb_obj_clone): should not propagate OLDGEN status.
+	  This propagation had caused WB miss for class.
+
+Thu May 23 17:35:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* load.c (loaded_feature_path): fix invalid read by index underflow.
+	  the beginning of name is also a boundary as well as just after '/'.
+
+Thu May 23 17:21:22 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (gc_profile_dump_on): revert r40898.  ok to show the record
+	  accumulating while lazy_sweep().
+
+Wed May 22 16:50:18 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (gc_profile_dump_on): use size_t to get rid of overflow and
+	  show the header when next_index > 0, instead of next_index != 1.
+
+Wed May 22 15:18:59 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (setup_overlapped): check the error code in addition
+	  to the result of SetFilePointer() to determine if an error occurred,
+	  because INVALID_SET_FILE_POINTER is a valid value.
+	  [ruby-core:55098] [Bug #8431]
+
+	* win32/win32.c (setup_overlapped, finish_overlapped): extract from
+	  rb_w32_read() and rb_w32_write().
+
+Wed May 22 14:19:56 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_prepare_free_objects, rest_sweep, lazy_sweep): fix position
+	  of `during_gc' setting.
+
+Wed May 22 07:36:08 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (garbage_collect): all GC is start from garbage_collect()
+	  (or garbage_collect_body()). `garbage_collect()' accept additional
+	  two parameters `full_mark' and `immediate_sweep'.
+	  If `full_mark' is TRUE, then force it full gc (major gc), otherwise,
+	  it depends on status of object space. Now, it will be minor gc.
+	  If `immediate_sweep' is TRUE, then disable lazy sweep.
+	  To allocate free memory, `full_mark' and `immediate_sweep' should be
+	  TRUE. Otherwise, they should be FALSE.
+
+	* gc.c (gc_prepare_free_objects): use `garbage_collect_body()'.
+
+	* gc.c (slot_sweep, before_gc_sweep, after_gc_sweep): add logging code.
+
+Tue May 21 22:47:06 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/strscan/strscan.c (strscan_aref): support named captures.
+	  patched by Konstantin Haase [ruby-core:54664] [Feature #8343]
+
+Tue May 21 21:48:44 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/ruby/test_dir_m17n.rb (TestDir_M17N#test_entries_compose):
+	  Use #each instead of #map just for iteration.
+
+Tue May 21 19:57:22 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* ext/digest/lib/digest.rb (Digest::Class.file): Take optional
+	  arguments that are passed to the constructor of the digest
+	  class.
+
+Tue May 21 17:21:12 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: remove gc_profile_record::is_marked. always true.
+
+Tue May 21 17:13:40 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: fix to collect additional information for GC::Profiler.
+	  * major/minor GC
+	  * trigger reason of GC
+
+	* gc.c (gc_profile_dump_on): change reporting format with
+	  added information.
+
+	* gc.c (gc_profile_record_get): return added information by
+	  :GC_FLAGS => array.
+
+Tue May 21 16:45:31 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: GC::Profiler's sweeping time is accumulated all slot
+	  sweeping time. At lazy GC, GC::Profiler makes new record entry
+	  for each lazy_sweep(). In this change, accumulating all
+	  slot_sweep() time.
+	  And change indentation.
+
+Tue May 21 16:29:09 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* common.mk (rdoc-bench): add a benchmark rule
+	  using RDoc. Generate all rdoc related files
+	  (same as `make rdoc') in temporary directory
+	  and remove them. Execution time, GC::Profiler
+	  and results of GC.stat are printed.
+
+	* tool/rdocbench.rb: added for `rdoc-bench'.
+
+Tue May 21 16:25:05 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_profile_dump_on): `count' should be (int) because it
+	  can be negative number.
+	  And use pointer for `record' (don't copy).
+
+Tue May 21 03:11:18 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (dir_each): compose HFS file names from
+	  UTF8-MAC. [ruby-core:48745] [Bug #7267]
+
+Tue May 21 03:08:52 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/envutil.rb (assert_separately): require envutil in the
+	  child process too.
+
+Tue May 21 03:07:26 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_conv_enc_opts): should infect.
+
+Mon May 20 22:24:45 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/set.rb (Set#delete_if, Set#keep_if): Avoid blockless call of
+	  proc, which is not portable to JRuby.  Replace &method() with
+	  faster and simpler literal blocks while at it.
+
+Mon May 20 22:00:31 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/e2mmap.rb: Format of E2MM documentation
+
+Mon May 20 21:41:15 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/extmk.rb: nodoc this file
+
+Mon May 20 20:43:32 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/cmath.rb: Remove duplicate RDoc heading from overview
+
+Mon May 20 20:36:19 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/securerandom.rb: Update position of overview for RDoc
+
+Mon May 20 19:33:55 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* math.c: improve and fix documentation of sin, tan and log
+
+Mon May 20 19:31:49 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* lib/logger.rb (Logger::Application): show namespace in documentation
+
+Mon May 20 11:50:12 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/pp.rb: Revert part of r40834 and nodoc PP::ObjectMixin
+	  [ruby-core:55068]
+
+Mon May 20 10:40:21 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/webrick/htmlutils.rb (WEBrick::HTMLUtils#escape): replace HTML
+	  meta chars even in non-ascii string.  [Bug #8425] [ruby-core:55052]
+
+	* lib/webrick/httputils.rb (WEBrick::HTTPUtils#{_escape,_unescape}):
+	  fix %-escape encodings.  [Bug #8425] [ruby-core:55052]
+
+	* lib/webrick/httpservlet/filehandler.rb (set_dir_list): revert r20152
+	  partially and fix misuse of bytesize and regexp repetition operator.
+
+Mon May 20 08:03:51 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/profiler.rb: Document Profiler__ methods
+
+Mon May 20 08:02:13 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/tempfile.rb: nodoc Tempfile#inspect
+
+Mon May 20 07:48:24 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/stringio/stringio.c: Correct position of method rdoc
+
+Mon May 20 07:27:41 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* math.c: RDoc formatting of Math core docs with domains and codomains
+	  Patch by @eLobato [Fixes GH-309]
+
+Mon May 20 05:58:12 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/bigdecimal/bigdecimal.c: Formatting for BigMath [Fixes GH-306]
+	  Based on a patch by @eLobato.
+	* ext/bigdecimal/lib/bigdecimal/math.rb: ditto
+
+Mon May 20 04:56:59 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/forwardable.rb: Forwardable examples in overview were broken
+	  Based on patch by @joem [Fixes GH-303] [Bug #8392]
+
+Mon May 20 03:35:26 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/optparse.rb: nodoc OptionParser::Version and SPLAT_PROC
+
+Mon May 20 03:16:52 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/pp.rb: Document PP::ObjectMixin [Fixes GH-312]
+
+Sun May 19 23:52:22 2013  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* test/webrick/test_htmlutils.rb: add test for WEBrick::HTMLUtils.
+
+Sun May 19 23:12:07 2013  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* encoding.c: document fix, change default script encoding.
+	  patched by @windwiny [Fixes GH-310]
+
+Sun May 19 17:29:07 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/set.rb (Set#delete_if, Set#keep_if): Add comments.
+
+Sun May 19 11:37:36 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* ext/fiddle/extconf.rb: ignore rc version of libffi to fix build failure.
+
+Sun May 19 10:38:50 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-electric.el (ruby-electric-delete-backward-char): Use
+	  delete-char instead of delete-backward-char, which is an
+	  interactive function.
+
+Sun May 19 03:59:29 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (str_scrub0): added for refactoring.
+
+Sun May 19 03:48:26 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/common.rb (URI.decode_www_form): scrub string if decoded
+	  bytes are invalid for the encoding.
+
+Sun May 19 02:46:32 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/set.rb (Set#delete_if, Set#keep_if): Make Set#delete_if and
+	  Set#keep_if more space and time efficient by avoiding to_a.
+
+Sun May 19 02:33:09 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-electric.el (ruby-electric-setup-keymap): Make
+	  backquotes electric as well.  It was listed in
+	  ruby-electric-expand-delimiters-list but not activated.
+
+	* misc/ruby-electric.el (ruby-electric-delete-backward-char):
+	  Introduce electric DEL that deletes what the previous electric
+	  command has input.
+
+	* misc/ruby-electric.el (ruby-electric-matching-char): Make
+	  electric quotes work again at the end of buffer.
+
+Sun May 19 01:39:50 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (setjmp-type): check if setjmpex() is really available.
+	  workaround for i686-w64-mingw32 which declares it but lacks its
+	  definition.
+
+	* include/ruby/defines.h: include setjmpex.h only if also setjmpex()
+	  is available.
+
+Sat May 18 23:57:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (setjmp-type): use setjmpex() on w64-mingw32 to get rid
+	  of -Wclobbered warnings.
+
+	* include/ruby/defines.h: include setjmpex.h here becase setjmp.h is
+	  included from win32.h via intrin.h, winnt.h, and so on.
+
+Sat May 18 20:28:12 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/mkconstants.rb (INTEGER2NUM): Make less comparisons.
+
+Sat May 18 20:15:28 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (str_scrub_bang): add String#scrub!. [Feature #8414]
+
+Sat May 18 16:59:52 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/mkconstants.rb (INTEGER2NUM): Renamed from INTEGER2VALUE.
+
+Sat May 18 16:57:58 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/mkconstants.rb (INTEGER2VALUE): Suppress a warning:
+	  comparison between signed and unsigned integer expressions
+
+Sat May 18 16:38:39 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_compile_each): forward anonymous and first keyword
+	  rest argument one.  [ruby-core:55033] [Bug #8416].
+
+Sat May 18 15:49:14 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_core.h (rb_vm_tag): move jmpbuf between tag and prev so ensure to
+	  be accessible.
+
+Sat May 18 11:05:14 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enumerator.c (inspect_enumerator): use VALUE instead of mere char*
+	  by using rb_sprintf() and rb_id2str().
+
+	* enumerator.c (append_method): extract from inspect_enumerator().
+
+Sat May 18 09:00:32 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/mkconstants.rb (INTEGER2VALUE): Use LONG2FIX if possible.
+
+Sat May 18 00:38:47 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/mkconstants.rb: Convert integer constants bigger than int
+	  correctly.
+
+Fri May 17 22:02:15 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/ifaddr.c: Use unsigned LONG_LONG to represent flags
+	  because SunOS 5.11 (OpenIndiana) defines ifa_flags as uint64_t.
+
+Fri May 17 21:47:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* cont.c: Typo in constant MAX_MACHINE_STACK_CACHE from '..MAHINE..'
+	  patch by @schmurfy [Fixes GH-307]
+
+Fri May 17 19:18:24 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-electric.el (ruby-electric-matching-char): Do not put
+	  a closing quote when the quote typed does not start a string, as
+	  in $', ?\' or ?\".
+
+Fri May 17 18:06:15 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Consider error messages to find out version option of
+	  C compiler.
+	  The C compiler of Sun Studio C emits "Warning: Option -qversion
+	  passed to ld, if ld is invoked, ignored otherwise" and exit
+	  successfully.
+
+Fri May 17 17:34:48 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (rb_gc_guarded_ptr): unoptimize on other compilers than gcc and
+	  msvc.
+
+Fri May 17 11:06:48 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval_intern.h (TH_PUSH_TAG): ensure jmpbuf to be accessible before
+	  pushing tag to get rid of unaccessible tag by stack overflow.
+
+Thu May 16 17:15:32 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vm_eval.c (rb_catch_obj): add volatile to tag to prevent crash
+	  experimentally.
+	  http://www.rubyist.net/~akr/chkbuild/debian/ruby-trunk/log/20130515T133500Z.log.html.gz
+
+Thu May 16 16:19:50 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/Makefile.sub (verconf.in): no longer used.
+
+	* win32/Makefile.sub (config.status): fix typo.
+
+	* configure.in, template/verconf.h.in (RUBY_EXEC_PREFIX): fix for
+	  default prefix.
+
+Thu May 16 13:12:27 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* template/verconf.h.in: generate verconf.h from the template and
+	  rbconfig.rb.
+
+Thu May 16 05:47:18 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: fix syntax error.
+	  Thanks @spastorino! [ruby-core:55011]
+
+Thu May 16 03:05:45 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_node_newnode): use newobj_of() instead of rb_newobj().
+
+Thu May 16 02:03:39 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/depend: Add a dependency for ifaddr.o.
+
+Thu May 16 01:44:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (verconf.h): $< cannot be used in explicit rules with
+	  nmake.
+
+	* win32/Makefile.sub (CONFIG_H): create verconf.in instead of
+	  verconf.h.
+
+Thu May 16 01:25:07 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: only emit warnings when
+	  -w is enabled.
+
+Wed May 15 18:58:17 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (newobj): rename to `newobj_of' and accept additional
+	  three parameters v1, v2, v3. newobj_of() do OBJSETUP() and
+	  fill values with v1, v2, v3.
+
+	* gc.c (rb_data_object_alloc, rb_data_typed_object_alloc):
+	  use newobj_of().
+
+Wed May 15 17:55:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (RUBY_PLATFORM): move to config.h as needed by
+	  version.c.
+
+Wed May 15 17:04:11 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: add an additional RGENGC_PROFILE mode (2).
+	  Profiling result can be check by GC.stat.
+
+	* gc.c (type_name): separate from obj_type_name().
+
+Wed May 15 16:58:24 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: save configured load path values into verconf.in.
+
+	* common.mk (verconf.h): create from verconf.in with shvar_to_cpp.rb.
+
+	* tool/shvar_to_cpp.rb: turn shell variables into C macros.
+	  [Bug #7959]
+
+	* loadpath.c: split load path staffs from version.c.
+
+	* dmyloadpath.c: miniruby has no builtin load paths, so verconf.h is
+	  not needed.
+
+Wed May 15 03:56:09 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: adding backwards
+	  compatible YAMLTree.new method
+
+Wed May 15 02:22:16 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb: Adding Psych.safe_load for loading a user
+	  defined, restricted subset of Ruby object types.
+	* ext/psych/lib/psych/class_loader.rb: A class loader for
+	  encapsulating the logic for which objects are allowed to be
+	  deserialized.
+	* ext/psych/lib/psych/deprecated.rb: Changes to use the class loader
+	* ext/psych/lib/psych/exception.rb: ditto
+	* ext/psych/lib/psych/json/stream.rb: ditto
+	* ext/psych/lib/psych/nodes/node.rb: ditto
+	* ext/psych/lib/psych/scalar_scanner.rb: ditto
+	* ext/psych/lib/psych/stream.rb: ditto
+	* ext/psych/lib/psych/streaming.rb: ditto
+	* ext/psych/lib/psych/visitors/json_tree.rb: ditto
+	* ext/psych/lib/psych/visitors/to_ruby.rb: ditto
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: ditto
+	* ext/psych/psych_to_ruby.c: ditto
+	* test/psych/helper.rb: ditto
+	* test/psych/test_safe_load.rb: tests for restricted subset.
+	* test/psych/test_scalar_scanner.rb: ditto
+	* test/psych/visitors/test_to_ruby.rb: ditto
+	* test/psych/visitors/test_yaml_tree.rb: ditto
+
+Wed May 15 02:06:35 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* test/psych/helper.rb: envutil is not available outside Ruby, so
+	  port the functions from envutil to the test helper.
+
+	* test/psych/test_deprecated.rb: ditto
+
+	* test/psych/test_encoding.rb: ditto
+
+Wed May 15 00:42:54 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* signal.c: need to include unistd.h for write(2).
+	  unistd.h is now included via ruby/defines.h, but should explicitly
+	  include here.  (suggested by kosaki)
+
+Tue May 14 23:43:05 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/.document: Add ifaddr.c.
+
+Tue May 14 23:24:31 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/socket/extconf.rb: check for if_nametoindex() for
+	  i686-w64-mingw32, and check for declarations of if_indextoname() and
+	  if_nametoindex().
+
+	* ext/socket/ifaddr.c (ifaddr_ifindex): not-implement unless
+	  if_nametoindex() is available.
+
+	* ext/socket/rubysocket.h: declare if_indextoname() and
+	  if_nametoindex() if available but not declared.
+
+Tue May 14 19:58:17 2013  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* ext/dl/lib/dl/func.rb (DL::Function#call): check tainted when
+	  $SAFE > 0.
+	* ext/fiddle/function.c (function_call): check tainted when $SAFE > 0.
+	* test/fiddle/test_func.rb (module Fiddle): add test for above.
+
+
+Tue May 14 14:51:52 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/win32.h (INTPTR_MAX, INTPTR_MIN, UINTPTR_MAX): split
+	  from intptr_t and uintptr_t, since VC9 defines the latter only in
+	  crtdefs.h.
+
+Tue May 14 12:21:28 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (NET_LUID): mingw may have NET_LUID and not defined
+	  _IFDEF_.
+
+Tue May 14 03:33:17 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* string.c (rb_str_new_frozen): remove debug print.
+
+Tue May 14 03:22:51 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: enable to generate write barrier protected
+	  arrays (T_ARRAY).
+
+Tue May 14 03:21:42 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: enable to generate write barrier protected
+	  strings (T_STRING).
+
+Tue May 14 03:19:59 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: enable to generate write barrier protected
+	  objects (T_OBJECT).
+
+Tue May 14 03:17:15 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: enable to generate write barrier protected
+	  objects for numeric types (Float, Complex, Rational, Bignum).
+
+Tue May 14 03:10:59 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: enable RGENGC (USE_RGENGC)
+	  but no type creates write protected (sunny) objects
+	  (RGENGC_WB_PROTECTED_* == 0).
+
+Tue May 14 02:47:30 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: support RGENGC. [ruby-trunk - Feature #8339]
+	  See this ticket about RGENGC.
+
+	* gc.c: Add several flags:
+	  * RGENGC_DEBUG: if >0, then prints debug information.
+	  * RGENGC_CHECK_MODE: if >0, add assertions.
+	  * RGENGC_PROFILE: if >0, add profiling features.
+	    check GC.stat and GC::Profiler.
+
+	* include/ruby/ruby.h: disable RGENGC by default (USE_RGENGC == 0).
+
+	* array.c: add write barriers for T_ARRAY and generate sunny objects.
+
+	* include/ruby/ruby.h (RARRAY_PTR_USE): added. Use this macro if
+	  you want to access raw pointers. If you modify the contents which
+	  pointer pointed, then you need to care write barrier.
+
+	* bignum.c, marshal.c, random.c: generate T_BIGNUM sunny objects.
+
+	* complex.c, include/ruby/ruby.h: add write barriers for T_COMPLEX
+	  and generate sunny objects.
+
+	* rational.c (nurat_s_new_internal), include/ruby/ruby.h: add write
+	  barriers for T_RATIONAL and generate sunny objects.
+
+	* internal.h: add write barriers for RBasic::klass.
+
+	* numeric.c (rb_float_new_in_heap): generate sunny T_FLOAT objects.
+
+	* object.c (rb_class_allocate_instance), range.c:
+	  generate sunny T_OBJECT objects.
+
+	* string.c: add write barriers for T_STRING and generate sunny objects.
+
+	* variable.c: add write barriers for ivars.
+
+	* vm_insnhelper.c (vm_setivar): ditto.
+
+	* include/ruby/ruby.h, debug.c: use two flags
+	  FL_WB_PROTECTED and FL_OLDGEN.
+
+	* node.h (NODE_FL_CREF_PUSHED_BY_EVAL, NODE_FL_CREF_OMOD_SHARED):
+	  move flag bits.
+
+Tue May 14 01:54:48 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: remove rb_objspace_t::marked_num.
+	  We can use `objspace_live_num()' instead of removed `marked_num'
+	  if it is after `after_gc_sweep()' function call.
+
+	* gc.c (after_gc_sweep): use objspace_live_num() instead of removed
+	  rb_objspace_t::marked_num.
+
+	* gc.c (gc_mark_ptr, gc_marks): remove rb_objspace_t::marked_num code.
+
+	* gc.c (gc_prepare_free_objects): do not call set_heaps_increment()
+	  with checking objspace->heap.marked_num. At this point, we only
+	  need to check availability of free-cell.
+
+	* gc.c (lazy_sweep): call after_gc_sweep() if there are no sweep_able entry.
+
+	* gc.c (rest_sweep, gc_prepare_free_objects): remove after_gc_sweep() call.
+
+Tue May 14 01:50:41 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: disable GC_PROFILE_MORE_DETAIL (fix last commit).
+
+	* gc.c (gc_prof_set_malloc_info): fix "objspace->heap.live_num" to
+	  "objspace_live_num(objspace)". There is no such member variable.
+
+Tue May 14 01:25:55 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: refactoring GC::Profiler.
+
+	* gc.c (gc_prof_sweep_timer_start/stop): removed because
+	  they doesn't support lazy sweep.
+
+	* gc.c (gc_prof_sweep_slot_timer_start/stop): added.
+	  redefine `sweeping time' to accumulated time of all of
+	  slot_sweep().
+
+	* gc.c (rb_objspace_t::profile::count): renamed to
+	  rb_objspace_t::profile::next_index. `counter' seems ambiguous.
+	  increment it when next record is acquired.
+
+Tue May 14 00:48:55 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: constify RRational::(num,den) and
+	  RComplex::(real,imag).
+	  Add macro to set these values:
+	    * RRATIONAL_SET_NUM()
+	    * RRATIONAL_SET_DEN()
+	    * RCOMPLEX_SET_REAL()
+	    * RCOMPLEX_SET_IMAG()
+	  This change is a part of RGENGC branch [ruby-trunk - Feature #8339].
+
+	  TODO: API design. RRATIONAL_SET(rat,num,den) is enough?
+	  TODO: Setting constify variable with cast has same issue of r40691.
+
+	* complex.c, rational.c: use above macros.
+
+Mon May 13 21:49:17 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: Check socketpair again.
+	  It is required on Unix.
+
+Mon May 13 21:20:32 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (getipaddrs): use alternative interface name if
+	  available, because if_nametoindex() requires them.
+
+Mon May 13 20:23:24 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c, include/ruby/win32.h (getipaddrs): [experimental]
+	  emulate getipaddrs(3) on Unix.
+
+	* win32/Makefile.sub, configure.in (LIBS): need iphlpapi.lib for above
+	  function.
+
+	* include/ruby/win32.h (socketpair): rb_w32_socketpair() doesn't
+	  substitute for any function, so use non-prefixed name.
+
+	* ext/socket/extconf.rb (socketpair); follow above change.
+
+Mon May 13 20:11:06 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* iseq.c (prepare_iseq_build): remove additional line break.
+
+Mon May 13 19:29:54 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: constify RBasic::klass and add
+	  RBASIC_CLASS(obj) macro which returns a class of `obj'.
+	  This change is a part of RGENGC branch [ruby-trunk - Feature #8339].
+
+	* object.c: add new function rb_obj_reveal().
+	  This function reveal internal (hidden) object by rb_obj_hide().
+	  Note that do not change class before and after hiding.
+	  Only permitted example is:
+	    klass = RBASIC_CLASS(obj);
+	    rb_obj_hide(obj);
+	    ....
+	    rb_obj_reveal(obj, klass);
+
+	  TODO: API design. rb_obj_reveal() should be replaced with others.
+
+	  TODO: modify constified variables using cast may be harmful for
+	        compiler's analysis and optimization.
+	        Any idea to prohibit inserting RBasic::klass directly?
+	        If rename RBasic::klass and force to use RBASIC_CLASS(obj),
+	        then all codes such as `RBASIC(obj)->klass' will be
+	        compilation error. Is it acceptable? (We have similar
+	        experience at Ruby 1.9,
+	        for example "RARRAY(ary)->ptr" to "RARRAY_PTR(ary)".
+
+	* internal.h: add some macros.
+	  * RBASIC_CLEAR_CLASS(obj) clear RBasic::klass to make it internal
+	    object.
+	  * RBASIC_SET_CLASS(obj, cls) set RBasic::klass.
+	  * RBASIC_SET_CLASS_RAW(obj, cls) same as RBASIC_SET_CLASS
+	    without write barrier (planned).
+	  * RCLASS_SET_SUPER(a, b) set super class of a.
+
+	* array.c, class.c, compile.c, encoding.c, enum.c, error.c, eval.c,
+	  file.c, gc.c, hash.c, io.c, iseq.c, marshal.c, object.c,
+	  parse.y, proc.c, process.c, random.c, ruby.c, sprintf.c,
+	  string.c, thread.c, transcode.c, vm.c, vm_eval.c, win32/file.c:
+	  Use above macros and functions to access RBasic::klass.
+
+	* ext/coverage/coverage.c, ext/readline/readline.c,
+	  ext/socket/ancdata.c, ext/socket/init.c,
+	* ext/zlib/zlib.c: ditto.
+
+Mon May 13 18:44:14 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* *.c, parse.y, insns.def: use RARRAY_AREF/ASET macro
+	  instead of using RARRAY_PTR().
+
+Mon May 13 16:53:53 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: add new utility macros to access
+	  Array's element.
+	  * RARRAY_AREF(a, i) returns i-th element of an array `a'
+	  * RARRAY_ASET(a, i, v) set i-th element of `a' to `v'
+	  This change is a part of RGENGC branch [ruby-trunk - Feature #8339].
+
+Mon May 13 15:31:10 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* object.c (rb_obj_setup): added.
+
+	* include/ruby/ruby.h (OBJSETUP): use rb_obj_setup() instead of
+	  a macro.
+
+Mon May 13 15:24:16 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_data_object_alloc): check klass only if klass is not 0.
+	  klass==0 means internal object.
+
+Mon May 13 14:57:28 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_data_object_alloc, rb_data_typed_object_alloc):
+	  use NEWOBJ_OF() instead of NEWOBJ().
+
+Mon May 13 14:51:59 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (rb_obj_singleton_method): new method Kernel#singleton_method
+	  which returns a Method object of the singleton method.
+	  non-singleton method causes NameError, but not aliased or zsuper
+	  method, right now.
+	  [ruby-core:54914] [Feature #8391]
+
+	* vm_method.c (rb_method_entry_at): return the method entry for id at
+	  klass, without ancestors.
+
+	* class.c (rb_singleton_class_get): get the singleton class if exists,
+	  or nil.
+
+Mon May 13 10:20:59 2013  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* ext/openssl/ossl_ssl.c: Disabled OpenSSL::SSL::SSLSocket if
+	  defined(OPENSSL_NO_SOCK).
+
+	  This fixes a linkage error on platforms which do not have socket.
+	  OpenSSL itself is still useful as a set of cryptographic functions
+	  even on such platforms.
+
+Mon May 13 10:30:04 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* hash.c: Hash[] and {} are not equivalent by @eam [Fixes GH-301]
+
+Mon May 13 10:04:22 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* random.c: Document Random::DEFAULT by @eLobato [Fixes GH-304]
+
+Sun May 12 21:12:42 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (OFFT2NUM): RUBY_REPLACE_TYPE also defines macro
+	  to convert int type to VALUE if found.
+
+Wed May  8 13:46:52 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* include/ruby/intern.h (rb_iv_set, rb_iv_get): removed. Because
+	  ruby.h has a declaration for that.
+
+Wed May  8 13:49:06 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* include/ruby/intern.h (rb_uint2big, rb_int2big, rb_uint2inum)
+	(rb_int2inum, rb_ll2inum, rb_ull2inum): removed because ruby.h
+	  has a declaration for these.
+
+Sun May 12 17:52:23 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: removes 'ac_cv_func_fseeko=yes' form MinGW
+	  specific definitions.
+
+Sun May 12 17:25:46 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* file.c (rb_file_s_truncate): use correct type. chsize takes
+	  a long.
+
+Sun May 12 17:18:46 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* process.c: move '#define HAVE_SPAWNV 1' to win32/Makefile.sub.
+	* win32/Makefile.sub: see above.
+
+Sun May 12 17:13:32 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: removes AC_CHECK_FUNCS(setitimer) because it's
+	  unused.
+
+Sun May 12 17:08:16 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: removes AC_CHECK_FUNCS(pause) because it's unused.
+
+Sun May 12 17:05:18 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* signal.c (rb_f_kill): fixes typo. s/HAS_KILLPG/HAVE_KILLPG/.
+
+Sun May 12 17:03:27 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: abort if gettimeofday doesn't exist.
+
+Sun May 12 16:31:27 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: adds RUBY_REPLACE_TYPE(off_t) for creating
+	  NUM2OFFT.
+	* file.c (rb_file_truncate): use correct type. chsize() take
+	  a long.
+	* include/ruby/ruby.h (NUM2OFFT): use a definition created by
+	  a configure script by default.
+
+Sun May 12 16:03:41 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: removes AC_CHECK_FUNC(fseeko, fseeko64, ftello,
+	  ftello64). They are not used from anywhere.
+
+	* win32/win32.c (fseeko): removes.
+	* win32/win32.c (rb_w32_ftello): removes.
+	* include/ruby/win32.h: removes declarations of rb_w32_ftello and
+	  rb_w32_fseeko.
+	* win32/Makefile.sub: removes '#define HAVE_FTELLO 1'.
+
+Sun May 12 15:51:47 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: remove AC_CHECK_FUNC(close). It is not used from
+	  anywhere.
+
+Sun May 12 15:50:45 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: adds comments for setjmp check.
+
+Sun May 12 15:38:09 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: move clock_gettime() check into regular place.
+
+Wed May  8 13:45:53 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: add getenv() declaration check.
+	* dln_find.c: add HAVE_DECL_GETENV test.
+
+Sun May 12 15:33:18 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: sorts AC_CHECK_FUNCS()s as alphabetical order.
+
+Wed May  8 13:41:57 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* bignum.c: remove redundant decl for big_lshift() big_rshift().
+
+Sun May 12 16:06:43 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/socket/rubysocket.h (rsock_inspect_sockaddr): as r40646
+	  check HAVE_TYPE_STRUCT_SOCKADDR_DL.
+
+Sat May 11 23:01:58 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/socket/rubysocket.h (HAVE_TYPE_STRUCT_SOCKADDR_DL):
+	  MSVC has struct sockaddr_dl, but its content is broken.
+	  http://ruby-mswin.cloudapp.net/vc10-x64/ruby-trunk/log/20130511T103938Z.log.html.gz
+
+Sat May 11 22:07:42 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/rinda/test_rinda.rb: Socket.getifaddrs may returns an interface
+	  which #addr method returns nil for venet0 in OpenVZ.
+
+Sat May 11 21:56:34 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/raddrinfo.c (rsock_inspect_sockaddr): Add casts to
+	  suppress warnings.
+
+Sat May 11 17:28:51 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket: New method, Socket.getifaddrs, implemented.
+	  [ruby-core:54777] [Feature #8368]
+
+Sat May 11 00:47:22 2013  Tanaka Akira  <akr@fsij.org>
+
+	* gc.h (SET_MACHINE_STACK_END): Add !defined(_ILP32) to a defining
+	  condition to avoid compilation error on x32.
+	  https://sites.google.com/site/x32abi/
+
+Fri May 10 23:56:34 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_peek_variable_name): treat invalid global, class,
+	  and instance variable names as mere strings rather than errors.
+	  [ruby-core:54885] [Bug #8375]
+
+Fri May 10 20:22:40 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Move library checks into "Checks for libraries." part.
+
+Fri May 10 19:32:01 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Reformat arguments of AC_CHECK_HEADERS and
+	  AC_CHECK_FUNCS to track modifications easily.
+
+Fri May 10 12:01:36 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Don't link librt if clock_gettime is available in
+	  the main C library.
+	  glibc 2.17 moves clock_* from librt to the main C library.
+	  http://sourceware.org/ml/libc-announce/2012/msg00001.html
+
+Thu May  9 22:00:35 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/ancdata.c (bsock_sendmsg_internal): controls_num should
+	  not be negative.
+
+Thu May  9 21:09:57 2013  Tanaka Akira  <akr@fsij.org>
+
+	* file.c, ext/etc/etc.c, ext/socket/unixsocket.c,
+	  ext/openssl/ossl.h, ext/openssl/openssl_missing.c: Use
+	  HAVE_AGGREGATE_MEMBER instead of HAVE_ST_MEMBER.
+
+Thu May  9 20:43:41 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/ancdata.c (bsock_sendmsg_internal): Always set
+	  controls_num to raise NotImplementedError appropriately.
+	  (bsock_recvmsg_internal): Raise NotImplementedError if
+	  :scm_rights=>true is given on platforms which don't have
+	  4.4BSD style control message.
+
+Thu May  9 12:06:07 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/rubysocket.h, ext/socket/unixsocket.c,
+	  ext/socket/ancdata.c: Use HAVE_STRUCT_MSGHDR_MSG_CONTROL instead
+	  of HAVE_ST_MSG_CONTROL.
+
+Thu May  9 11:30:02 2013  Zachary Scott	 <zachary@zacharyscott.net>
+
+	* string.c: Add call-seq alias for String#=== [Bug #8381]
+
+Thu May  9 11:14:18 2013  Zachary Scott	 <zachary@zacharyscott.net>
+
+	* doc/contributing.rdoc: Add guide for contributing to CRuby
+
+Thu May  9 04:55:49 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Check socket library again.  shutdown() is used in
+	  io.c.
+
+Thu May  9 01:52:31 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Don't check socketpair.  socketpair is not used in
+	  ruby command itself.
+
+Thu May  9 01:05:41 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (rb_mod_included_modules): should not include non-modules.
+	  [ruby-core:53158] [Bug #8025]
+
+Wed May  8 22:46:59 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (rb_mod_included_modules): should not include the original
+	  module itself.  [ruby-core:53158] [Bug #8025]
+
+Wed May  8 17:43:55 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* io.c (rb_io_ext_int_to_encs): ignore internal encoding if external
+	  encoding is ASCII-8BIT. [Bug #8342]
+
+Wed May  8 13:49:38 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/json/generator/generator.c (isArrayOrObject): cast char to
+	  unsigned char. [Bug #8378]
+
+Wed May  8 13:46:10 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/json/generator/depend: fix dependencies [Bug #8379]
+
+	* ext/json/parser/depend: ditto.
+
+Wed May  8 13:07:17 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_yylex): fail if $, @, @@ are not followed by a valid
+	  name character.  [ruby-core:54846] [Bug #8375].
+
+Wed May  8 13:06:31 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (ISGRAPH): add missing macro.
+
+Wed May  8 06:42:56 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/socket/socket.c (socket_s_ip_address_list): fix wrongly filled
+	  sin6_scope_id on KAME introduced by r40593 for OpenIndiana.
+	  KAME uses fe80:<scope_id>::<interface id> for link-local address
+	  internally.
+	  Setting sin6_scope_id causes it leaked.
+	  see also comments of sockaddr_obj().
+
+Tue May  7 22:12:34 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/readline/readline.c (insert_ignore_escape): Add a cast to
+	  unsigned char * before dereference.
+	  This suppress a warning on Cygwin.
+
+Tue May  7 12:15:24 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/ancdata.c (bsock_recvmsg_internal): Add a cast to
+	  suppress warning.
+	  Bionic defines socklen_t as int.
+	  Bionic defines msg_controllen as unsigned int (__kernel_size_t)
+	  instead of socklen_t as POSIX.
+
+Tue May  7 12:12:42 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/ancdata.c (ancillary_inspect): Don't call
+	  anc_inspect_ipv6_pktinfo if !HAVE_TYPE_STRUCT_IN6_PKTINFO.
+	  anc_inspect_ipv6_pktinfo is not defined in the case.
+
+Tue May  7 12:10:52 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/socket.c (socket_s_ip_address_list): Cast EXTRA_SPACE as
+	  int.  This suppress a warning.
+
+Tue May  7 12:09:29 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: Set close_fds false for Cygwin.
+	  Cygwin doesn't support fd passing.
+	  This enables socket extension library cross-compilable by default.
+
+Tue May  7 12:07:35 2013  Tanaka Akira  <akr@fsij.org>
+
+	* pack.c (swap32): Don't redefine it if it is already defined.
+	  Bionic defines it.
+	  (swap64): Ditto.
+
+Mon May  6 20:50:37 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/socket.c (socket_s_ip_address_list): Fill sin6_scope_id
+	  if getifaddrs() returns an IPv6 link local address which
+	  sin6_scope_id is zero, such as on OpenIndiana SunOS 5.11.
+
+Sun May  5 18:56:52 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* insns.def (defined): use vm_search_superclass() like as normal super
+	  call.  based on a patch <https://gist.github.com/wanabe/5520026> by
+	  wanabe.
+
+	* vm_insnhelper.c (vm_search_superclass): return error but not raise
+	  exceptions.
+
+	* vm_insnhelper.c (vm_search_super_method): check the result of
+	  vm_search_superclass and raise exceptions on error.
+
+Sun May  5 16:29:41 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* insns.def (defined): get method entry from the method top level
+	  frame, not block frame.  [ruby-core:54769] [Bug #8367]
+
+Sun May  5 13:28:54 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* template/ruby.pc.in (Cflags): use rubyarchhdrdir for multiarch.
+	  [Bug #7874]
+
+Sat May  4 07:20:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* doc/security.rdoc: Add note about reporting security vulns
+
+Sat May  4 04:13:27 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* include/ruby/defines.h (RUBY_ATTR_ALLOC_SIZE): New for
+	  attribute((alloc_size(params))).
+
+	* include/ruby/defines.h (xmalloc, xmalloc2, xcalloc)
+	(xrealloc, xrealloc2): Annotated by RUBY_ATTR_ALLOC_SIZE.
+	* include/ruby/ruby.h (rb_alloc_tmp_buffer): ditto.
+
+Fri May  3 19:32:13 2013  Takeyuki FUJIOKA  <xibbar@ruby-lang.org>
+
+	* lib/cgi/util.rb: All class methods modulized.
+	  We can use these methods like a function when "include CGI::Util".
+	  [Feature #8354]
+
+Fri May  3 14:09:45 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: Make default_ipv6 true for Cygwin.
+	  Cygwin supports IPv6 since Cygwin 1.7.1 (2009-12).
+	  http://cygwin.com/ml/cygwin-announce/2009-12/msg00027.html
+
+Fri May  3 13:35:26 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/socket/{getaddrinfo,getnameinfo}.c: define socklen_t if not
+	  defined, e.g., older VC.
+
+Fri May  3 13:29:11 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/win32.h (INTPTR_MAX, INTPTR_MIN, UINTPTR_MAX): also
+	  should be defined when defining intptr_t and uintptr_t.
+	  bigdecimal.c requires the former two now.
+
+Fri May  3 13:22:12 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (poll_child_status): fix build error on older mingw.
+
+Fri May  3 00:15:58 2013  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* common.mk: remove timestamps in distclean-ext realclean-ext.
+
+Thu May  2 23:23:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_obj_is_kind_of): skip prepending modules.
+	  [ruby-core:54742] [Bug #8357]
+
+	* object.c (rb_class_inherited_p): ditto.
+	  [ruby-core:54736] [Bug #8357]
+
+Thu May  2 22:11:47 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* bin/irb: remove dead code from sample/irb.rb.
+
+Thu May  2 17:32:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* marshal.c (copy_ivar_i): get rid of overwriting already copied
+	  instance variables.  c.f. [Bug #8276]
+
+Thu May  2 16:55:43 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread.c (id_locals): use cached ID.
+
+	* vm.c (ruby_thread_init): ditto.
+
+	* defs/id.def: add more predefined IDs used in core.
+
+Thu May  2 13:42:42 2013  Ryan Davis  <ryand-ruby@zenspider.com>
+
+	* lib/minitest/*: Imported minitest 4.7.4 (r8483)
+	* test/minitest/*: ditto
+
+Thu May  2 11:32:22 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (poll_child_status): [experimental] set the cause of
+	  a child's death to status if its exitcode seems to be an error.
+
+	* test/ruby/test_process.rb (TestProcess#test_no_curdir): maybe now
+	  we can test it.
+
+	* test/ruby/test_thread.rb (TestThread#test_thread_timer_and_interrupt):
+	  ditto.
+
+Thu May  2 11:24:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/yaml.rb: nodoc EngineManager, add History doc #8344
+
+Wed May  1 21:11:17 2013  Tanaka Akira  <akr@fsij.org>
+
+	* time.c (localtime_with_gmtoff_zone): musl libc may return NULL for
+	  tm_zone.
+
+Wed May  1 18:59:36 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* enum.c (Enumerable#chunk): fix grammar of error message
+	  for symbols beginning with an underscore [Bug #8351]
+
+Wed May  1 16:47:47 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/curses/extconf.rb (curses_version): try once for each tests, a
+	  function or a variable.  fallback to variable for old SVR4.
+
+Wed May  1 16:17:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/extmk.rb (extmake): extensions not to be installed should not
+	  make static libraries, but make dynamic libraries always.
+
+Wed May  1 12:20:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/rake/version.rb: Fix RDoc warning with  :include: [Bug #8347]
+
+Wed May  1 11:40:25 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* defs/id.def (predefined): add "idProc".
+
+	* eval.c (frame_func_id): use predefined IDs.
+
+	* proc.c (mnew, mproc, mlambda): use predefined IDs.
+
+	* vm.c (rb_vm_control_frame_id_and_class): ditto.
+
+	* vm.c (Init_VM): ditto.
+
+Tue Apr 30 23:18:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/benchmark.rb: Update Benchmark results on newer CPU
+
+Tue Apr 30 12:31:40 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (mproc, mlambda): use frozen core methods instead of plain
+	  global methods, so that methods cannot be overridden.
+	  [ruby-core:54687] [Bug #8345]
+
+	* vm.c (Init_VM): define proc and lambda on the frozen core object.
+
+	* include/ruby/intern.h (rb_block_lambda): add declaration instead of
+	  deprecated rb_f_lambda.
+
+Mon Apr 29 17:02:30 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/nkf/nkf-utf8/nkf.h: Bionic libc doesn't have locale.
+	  [Feature #8338]
+
+
+Mon Apr 29 06:58:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/openssl/ossl_bn.c (ossl_bn_initialize): no need of alloca for
+	  small fixed size array.
+
+	* ext/openssl/ossl_bn.c (ossl_bn_initialize): check overflow first,
+	  and use alloca for small size input.
+
+Mon Apr 29 00:40:13 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* lib/yaml.rb: Clarify documentation about YAML being always Psych.
+	  Give a tip about using Syck. See #8344.
+
+Sun Apr 28 23:34:01 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* lib/yaml.rb: Use another trick to define the YAML module.
+	  https://twitter.com/n0kada/status/328342207511801856
+
+Sun Apr 28 23:19:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/pp.rb: Update PP module overview by @geopet
+
+Sun Apr 28 22:04:37 2013  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* ext/openssl/ossl_bn.c (ossl_bn_initialize): fix buffer overflow on
+	  x64 Windows and memory leak when initializing with integer.
+	  [ruby-core:54615] [Bug #8337]
+
+Sun Apr 28 12:38:04 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* README.EXT: correct method name to be used.  [Bug #7982]
+
+	* README.EXT.ja: add notes too.
+
+Sun Apr 28 10:35:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* object.c: With feedback from Steve Klabnik, reverted a change to
+	  #untrusted? and #tainted?. Also adjusted grammar for $SAFE levels
+
+Sun Apr 28 10:10:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/yaml.rb: Disable setting YAML const twice [ruby-core:54642]
+
+Sun Apr 28 09:50:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* object.c: Documentation for taint and trust [Bug #8162]
+
+Sun Apr 28 09:40:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* README.EXT: Copy note from r40505 for rb_sprintf() [Bug #7982]
+
+Sun Apr 28 08:28:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/curses/curses.c: Update Curses::Window example for nicer output
+	  Patch by Michal Suchanek [Bug #8121] [ruby-core:53520]
+
+Sun Apr 28 08:10:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* README.EXT: Update note from r40504, by Jeremy Evans [Bug #7982]
+
+Sun Apr 28 08:02:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* README.EXT: Add note to warn use of %i in Exceptions [Bug #7982]
+
+Sun Apr 28 02:41:05 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Fix a typo.  Should check endgrent() instead of
+	  endgrnam().
+
+Sun Apr 28 00:35:45 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (obj2gid): Don't call endgrent() if not exist.
+	  Bionic (Android's libc) don't have endgrent().
+
+	* configure.in: Check endgrnam function.
+
+Sat Apr 27 23:53:00 2013  Charlie Somerville  <charlie@charliesomerville.com>
+
+	* lib/yaml.rb: add security warning to YAML documentation
+
+Sat Apr 27 23:25:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/yaml.rb: Documentation for YAML module [Bug #8213]
+
+Sat Apr 27 20:19:21 2013  Tanaka Akira  <akr@fsij.org>
+
+	* thread_pthread.c (ruby_init_stack): Add STACK_GROW_DIR_DETECTION.
+	  This fixes a compilation failure while cross-compiling for Tensilica
+	  Xtensa Processor.
+
+Sat Apr 27 19:32:44 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* thread.c: fix typos and documentation
+
+Sat Apr 27 19:04:55 2013  Tanaka Akira  <akr@fsij.org>
+
+	* sparc.c: Use __asm__ instead of asm for gcc.
+	  gcc doesn't provide asm keyword if -ansi option is given.
+	  http://gcc.gnu.org/onlinedocs/gcc/Alternate-Keywords.html
+
+Sat Apr 27 17:22:50 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: Redundant test removed.
+
+Sat Apr 27 16:00:10 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb (test_recvmsg_with_msg_peek_creates_fds):
+	  Extracted.
+
+Sat Apr 27 15:50:40 2013  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (SIGNED_INTEGER_TYPE_P): New macro.
+	  (SIGNED_INTEGER_MAX): Ditto.
+	  (SIGNED_INTEGER_MIN): Ditto.
+	  (UNSIGNED_INTEGER_MAX): Ditto.
+	  (TIMET_MAX): Use SIGNED_INTEGER_MAX and UNSIGNED_INTEGER_MAX.
+	  (TIMET_MIN): Use SIGNED_INTEGER_MIN.
+
+	* thread.c (TIMEVAL_SEC_MAX): Use SIGNED_INTEGER_MAX.
+	  (TIMEVAL_SEC_MIN): Use SIGNED_INTEGER_MIN.
+
+Sat Apr 27 10:52:52 2013  Tanaka Akira  <akr@fsij.org>
+
+	* thread.c (TIMEVAL_SEC_MAX, TIMEVAL_SEC_MIN): Consider environments,
+	  sizeof(time_t) is smaller than sizeof(tv_sec), such as
+	  OpenBSD 5.2 (amd64).
+
+Fri Apr 26 23:34:59 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/text.rb (REXML::Text.normalize): Fix a bug that all
+	  entity filters are ignored. [ruby-dev:47278] [Bug #8302]
+	  Patch by Ippei Obayashi. Thanks!!!
+	* test/rexml/test_entity.rb (EntityTester#test_entity_filter): Add
+	  a test of the above change.
+
+Fri Apr 26 22:53:55 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/element.rb (REXML::Attributes#to_a): Support
+	  namespaced attributes. [ruby-dev:47277] [Bug #8301]
+	  Patch by Ippei Obayashi. Thanks!!!
+	* test/rexml/test_attributes.rb
+	  (AttributesTester#test_to_a_with_namespaces): Add a test of the
+	  above change.
+
+Fri Apr 26 21:48:29 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rss/atom.rb (RSS::Atom::Entry): Fix indent of document comment.
+
+Fri Apr 26 21:21:17 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rss/maker.rb (RSS::Maker): Fix indent of document comment.
+
+Fri Apr 26 18:41:04 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: Use a block of enable_config() for
+	  --{enable,disable}-close-fds-by-recvmsg-with-peek configure option
+
+Fri Apr 26 18:08:08 2013  Tanaka Akira  <akr@fsij.org>
+
+	* dir.c (dir_set_pos): Fix a compilation error when seekdir() is not
+	  exist.
+
+Fri Apr 26 17:41:17 2013  Tanaka Akira  <akr@fsij.org>
+
+	* thread_pthread.c (ruby_init_stack): Add STACK_GROW_DIR_DETECTION.
+	  This fixes a compilation failure while cross-compiling for ARM.
+
+Fri Apr 26 14:35:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/rss/atom.rb: Documentation for RSS::Atom based on a patch by
+	  Michael Denomy
+	* lib/rss/maker.rb: Documentation for RSS::Maker also by @mdenomy
+
+Fri Apr 26 12:41:22 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/curses/extconf.rb: Test linkability of curses_version at first.
+
+	* ext/socket/extconf.rb: Test the behavior of fd passing with MSG_PEEK
+	  only if recvmsg(), msg_control member, AF_UNIX and SCM_RIGHTS are
+	  available.
+
+Fri Apr 26 00:07:52 2013  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* lib/rinda/ring.rb (Rinda::RingServer#initialize): accept array
+	  arguments of address to specify multicast interface.
+
+	* lib/rinda/ring.rb (Rinda::RingServer#make_socket): add optional
+	  arguments for multicast interface.
+
+	* test/rinda/test_rinda.rb
+	  (TestRingFinger#test_ring_server_ipv4_multicast,
+	   TestRingFinger#test_ring_server_ipv6_multicast): add tests for
+	  above change.
+
+	* test/rinda/test_rinda.rb
+	  (TestRingServer#test_make_socket_ipv4_multicast,
+	   TestRingServer#test_make_socket_ipv6_multicast): change bound
+	  interface address because multicast address is not allowed on Linux
+	  or Windows.
+	  [ruby-core:53692] [Bug #8159]
+
+Thu Apr 25 23:45:02 2013  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* lib/rinda/ring.rb (Rinda::RingServer#initialize): add a socket
+	  to @sockets in make_socket() to close sockets on shutdown even if
+	  make_socket() is called after initialize.
+
+	* lib/rinda/ring.rb (Rinda::RingServer#make_socket): ditto.
+
+Thu Apr 25 23:39:42 2013  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/rinda/test_rinda.rb (TupleSpaceProxyTest#test_take_bug_8215):
+	  use KILL on Windows since TERM doen't work and ruby process remains
+	  after test-all on Windows.
+
+Thu Apr 25 23:16:28 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/curses/extconf.rb: Implement
+	  --with-curses-version={function,variable} configure option for
+	  cross-compiling.
+
+Thu Apr 25 18:15:46 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: Don't use WIDE getaddrinfo by default.
+
+Thu Apr 25 17:56:39 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: Remove obsolete options: ---with-ipv6-lib and
+	  --with-ipv6-libdir.
+
+Thu Apr 25 17:43:49 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: Implement
+	  --{enable,disable}-close-fds-by-recvmsg-with-peek configure option
+	  for cross-compiling.
+	  Make --{enable,disable}-wide-getaddrinfo configure option
+	  cross-compiling friendly.
+
+Thu Apr 25 16:11:06 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_io_ext_int_to_encs, parse_mode_enc): bom-prefixed name is
+	  not a real encoding name, just a fallback.  so the proper conversion
+	  should take place even if if the internal encoding is equal to the
+	  bom-prefixed name, unless actual encoding is equal to the internal
+	  encoding.  [ruby-core:54563] [Bug #8323]
+
+	* io.c (io_set_encoding_by_bom): reset extenal encoding if no BOM
+	  found.  [ruby-core:54569]
+
+Thu Apr 25 14:35:01 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/openssl/ossl_bn.c (ossl_bn_initialize): allow Fixnum and Bignum.
+	  [ruby-core:53986] [Feature #8217]
+
+Thu Apr 25 14:26:32 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/common.rb (URI.decode_www_form): follow current URL Standard.
+	  It gets encoding argument to specify the character encoding.
+	  It now allows loose percent encoded strings, but denies ;-separator.
+	  [ruby-core:53475] [Bug #8103]
+
+	* lib/uri/common.rb (URI.decode_www_form): follow current URL Standard.
+	  It gets encoding argument to convert before percent encode.
+	  Now UTF-16 strings aren't converted to UTF-8 before percent encode
+	  by default.
+
+Wed Apr 25 14:26:00 2013  Charlie Somerville  <charlie@charliesomerville.com>
+
+	* benchmark/bm_hash_shift.rb: add benchmark for Hash#shift
+
+	* hash.c (rb_hash_shift): use st_shift if hash is not being iterated to
+	  delete element without iterating the whole hash.
+
+	* hash.c (shift_i): remove function
+
+	* include/ruby/st.h (st_shift): add st_shift function
+
+	* st.c (st_shift): ditto
+
+	[Bug #8312] [ruby-core:54524] Patch by funny-falcon
+
+Thu Apr 25 12:03:38 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: Extract C programs as toplevel constants.
+
+Thu Apr 25 02:23:28 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (RUBY_RM_RECURSIVE): this hack is needed by only
+	  autoconf 2.69 or earlier on darwin.
+
+Thu Apr 25 01:22:41 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/tracer.rb (get_line): simply read by File.readlines.
+
+	* lib/debug.rb (script_lines): get source lines from SCRIPT_LINES__ or
+	  read from the file.
+
+	* lib/debug.rb (display_list): use script_lines instead of recursion.
+	  [Bug #8318]
+
+	* lib/debug.rb (line_at): use script_lines same as display_list.
+
+	* lib/debug.rb (display_list): Fix debug listing when called from the
+	  same file it has been required.  patch by Dario Bertini <berdario AT
+	  gmail.com> [Bug #8318] [fix GH-280]
+
+Wed Apr 24 21:51:13 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Check mblen().
+	  mblen() is optional in uClibc.
+
+	* eval_intern.h (CharNext): Don't use mblen() is not available.
+
+Wed Apr 24 15:55:06 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (rb_fd_fix_cloexec): use rb_update_max_fd().
+
+Wed Apr 24 14:08:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* numeric.c: Fix wiki link on Float imprecision in overview, patched
+	  by Makoto Kishimoto [Bug #8304] [ruby-dev:47280]
+
+Wed Apr 24 14:03:59 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_yylex): disallow $- without following identifier
+	  character.  [ruby-talk:406969]
+
+	* parse.y (is_special_global_name): mere $- is not a valid global
+	  variable name.
+
+Wed Apr 24 13:54:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* string.c: Document String#setbyte return value by @gjmurakami-10gen
+	  [Fixes GH-294]
+
+Wed Apr 24 13:45:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* class.c: Example of Object#methods by @windwiny [Fixes GH-293]
+	* ruby.c: Document return values of Kernel #sub, #gsub, and #chop
+
+Wed Apr 24 12:54:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/socket/lib/socket.rb: Doc typos by @vipulnsward [Fixes GH-292]
+
+
+Wed Apr 24 12:54:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/socket/lib/socket.rb: Doc typos by @vipulnsward [Fixes GH-292]
+
+Wed Apr 24 12:27:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* array.c: Fix documentation for Array#index and #replace aliases
+	  Based on a patch by @phiggins [Fixes GH-282]
+
+Tue Apr 23 21:14:38 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (rb_str_inspect): refix r40413, on Ruby 1.9 usual character
+	  escape uses hex/Unicode escapes, so fix to use Unicode escape on
+	  Unicode strings and hex on others. [ruby-core:54458] [Bug #8290]
+
+Tue Apr 23 20:10:02 2013  Tanaka Akira  <akr@fsij.org>
+
+	* missing/isnan.c (isnan): Don't define if isnan() macro is defined.
+	  This fixes a compilation failure on uClibc based Gentoo system.
+
+Tue Apr 23 17:40:40 2013  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/rexml/document.rb, lib/rexml/element.rb,
+	  lib/rexml/formatters/pretty.rb: remove opinionated
+	  language in documentation. [Bug #8309],
+	  reported by Charles Beckmann
+
+Tue Apr 23 14:04:44 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/imap.rb (getacl_response): parse the mailbox of an ACL
+	  response correctly.  [ruby-core:54365] [Bug #8281]
+
+Tue Apr 23 11:58:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_scrub): fix for UTF-32.  strlen() on strings
+	  contain NUL returns wrong result, use sizeof operator instead.
+	  [ruby-dev:45975] [Feature #6752]
+
+Tue Apr 23 10:26:50 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* test/ruby/test_module.rb
+	  (TestModule#test_const_get_invalid_name)
+	  (test_const_defined_invalid_name): Fix expected values.
+
+Tue Apr 23 09:51:26 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* string.c (rb_str_inspect): NUL should not be represented as "\0"
+	  when octal digits may follow.  [ruby-core:54458] [Bug #8290]
+
+Mon Apr 22 22:54:00 2013  Charlie Somerville  <charlie@charliesomerville.com>
+
+	* insns.def (opt_mod): Use % operator if both operands are positive for
+	  a significant performance improvement. Thanks to @samsaffron.
+
+Mon Apr 22 17:09:37 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* marshal.c (r_object0): copy all instance variables not only generic
+	  ivars, before calling post proc.  [ruby-core:51163] [Bug #7627]
+
+Mon Apr 22 10:25:21 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* util.c (ruby_hdtoa): revert r29729.
+	  If you want ruby to behave as before on x86, specify to use SSE like
+	  -msse2 -mfpmath=sse for gcc.
+
+Sun Apr 21 23:19:00 2013  Charlie Somerville  <charlie@charliesomerville.com>
+
+	* configure.in: Revert using sigsetjmp by default due to performance
+	  problems on some systems (eg. older Linux)
+
+Sun Apr 21 21:35:00 2013  Charlie Somerville  <charlie@charliesomerville.com>
+
+	* configure.in: Use sigsetjmp by default so jumping out of signal
+	  handlers properly restores the signal mask and SS_ONSTACK flag.
+	  [ruby-core:54175] [Bug #8254]
+
+	* configure.in: Manually check for presence of sigsetjmp. It is not a
+	  function on some systems, so AC_CHECK_FUNCS cannot be used.
+
+Sun Apr 21 08:00:55 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/csv/test_features.rb, test/logger/test_logger.rb
+	  test/mkmf/test_have_macro.rb, test/net/http/test_http.rb,
+	  test/openssl/test_config.rb, test/psych/test_encoding.rb,
+	  test/psych/test_exception.rb, test/psych/test_psych.rb,
+	  test/psych/test_tainted.rb, test/readline/test_readline.rb,
+	  test/rexml/test_contrib.rb, test/ruby/test_autoload.rb,
+	  test/ruby/test_beginendblock.rb, test/ruby/test_exception.rb,
+	  test/ruby/test_file.rb, test/ruby/test_io.rb,
+	  test/ruby/test_marshal.rb, test/ruby/test_process.rb,
+	  test/ruby/test_require.rb, test/ruby/test_rubyoptions.rb,
+	  test/syslog/test_syslog_logger.rb, test/webrick/test_httpauth.rb,
+	  test/zlib/test_zlib.rb: Use Tempfile.create.
+
+Sun Apr 21 00:15:36 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/tempfile.rb (Tempfile.create): Close when the block exits.
+
+Sat Apr 20 23:38:14 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/webrick/httpauth/htpasswd.rb: Use Tempfile.create to avoid
+	  unintentional unlink() by the finalizer.
+	  lib/webrick/httpauth/htdigest.rb: Ditto.
+
+Sat Apr 20 22:47:48 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/tempfile.rb (Tempfile.create): New method.
+	  The method name is proposed by Shugo Maeda.  [ruby-dev:47220]
+	  [ruby-core:41478] [Feature #5707]
+
+Sat Apr 20 14:22:10 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* marshal.c (w_object): dump no ivars to the original by marshal_dump.
+	  [ruby-core:54334] [Bug #8276]
+
+	* marshal.c (r_object0): copy all ivars of marshal_dump data to the
+	  result object instead.  [ruby-core:51163] [Bug #7627]
+
+Sat Apr 20 02:33:27 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (str_scrub): add ruby method String#scrub which verify and
+	  fix invalid byte sequence. [ruby-dev:45975] [Feature #6752]
+
+	* string.c (str_compat_and_valid): check given string is compatible
+	  and valid with given encoding.
+
+	* transcode.c (str_transcode0): If invalid: :replace is specified for
+	  String#encode, replace invalid byte sequence even if the destination
+	  encoding equals to the source encoding.
+
+Fri Apr 19 21:55:40 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* README.EXT.ja (Data_Wrap_Struct): Remove a description about
+	  orphan argument. Oh, I renamed the argument name without
+	  changing description at r36180... Sorry....
+	  Patch by Makoto Kishimoto. Thanks!!! [ruby-dev:47269] [Bug #8292]
+	* README.EXT.ja (Data_Make_Struct): Add a sample code that describes
+	  how it works.
+	  Patch by Makoto Kishimoto. Thanks!!! [ruby-dev:47269] [Bug #8292]
+
+Fri Apr 19 17:54:57 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/imap.rb (body_type_msg): should accept
+	  message/delivery-status with extra data.
+	  [ruby-core:53741] [Bug #8167]
+
+	* test/net/imap/test_imap_response_parser.rb: related test.
+
+Fri Apr 19 13:03:14 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* marshal.c (w_object): do not dump encoding which is dumped with
+	  marshal_dump data.  [ruby-core:54334] [Bug #8276]
+
+Fri Apr 19 11:36:53 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (stack_protector): control use of -fstack-protector.
+
+	* configure.in (debugflags): let -fstack-protector precede and disable
+	  debugflags, because they can't work together on SmartOS.  [Bug #8268]
+
+Fri Apr 19 07:43:52 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* test/openssl/test_cipher.rb: Correct a typo
+	  by jgls <joerg@joergleis.com>
+	  https://github.com/ruby/ruby/pull/291 fix GH-291
+
+Thu Apr 18 16:58:51 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_method.c (rb_mod_public_method): fix visibility on anonymous
+	  module. set visibility of singleton method, not method in base
+	  class.  [ruby-core:54404] [Bug #8284]
+
+Thu Apr 18 16:20:51 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (glob_helper): should skip dot directories only for recursion,
+	  but should not if matching to the given pattern.  [ruby-core:54387]
+	  [Bug #8283]
+
+Thu Apr 18 16:20:21 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* pack.c (pack_unpack): increase buffer size to fix buffer overflow,
+	  and fix garbage just after unpacking without missing paddings.
+	  [Bug #8286]
+
+Thu Apr 18 13:35:54 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* pack.c (pack_unpack): output characters even if the input doesn't
+	  have paddings. [Bug #8286]
+
+Thu Apr 18 08:20:48 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* common.mk (clean-ext): remove timestamps.
+
+Wed Apr 17 22:07:50 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/rubysocket.h (SOCKLEN_MAX): Expression simplified.
+
+Wed Apr 17 20:09:19 2013  Aman Gupta  <ruby@tmm1.net>
+
+	* compile.c (iseq_add_mark_object): Use new rb_iseq_add_mark_object().
+
+	* insns.def (setinlinecache): Ditto.
+
+	* iseq.c (rb_iseq_add_mark_object): New function to allocate
+	  iseq->mark_ary on demand. [Bug #8142]
+
+	* iseq.h (rb_iseq_add_mark_object): Ditto.
+
+	* iseq.c (prepare_iseq_build): Avoid allocating mark_ary until needed.
+
+	* iseq.c (rb_iseq_build_for_ruby2cext): Ditto.
+
+Wed Apr 17 20:00:18 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/rubysocket.h (SOCKLEN_MAX): Defined.
+
+	* ext/socket/raddrinfo.c (ext/socket/raddrinfo.c): Reject too long
+	  Linux abstract socket name.
+
+Wed Apr 17 19:45:27 2013  Aman Gupta  <tmm1@ruby-lang.org>
+
+	* iseq.c (iseq_location_setup): re-use existing string when iseq has
+	  the same path and absolute_path. [Bug #8149]
+
+Wed Apr 17 11:38:37 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit/assertions.rb (Test::Unit::Assertions#assert):
+	  UNASSIGNED is not a valid message.
+
+Wed Apr 17 10:58:18 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread.c (sleep_timeval): get rid of overflow on Windows where
+	  timeval.tv_sec is not time_t but mere long.
+
+Tue Apr 16 23:07:12 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/unixsocket.c (unix_send_io): Suppress a warning by clang.
+	  (unix_recv_io): Ditto.
+
+Tue Apr 16 12:27:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/sdbm/init.c: Fix comment indentation, by windwiny [Fixes GH-277]
+
+Tue Apr 16 12:25:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/socket/option.c: Document synonymous methods, by windwiny [GH-277]
+	* ext/stringio/stringio.c: ditto
+	* ext/io/wait/wait.c: ditto
+	* ext/gdbm/gdbm.c: ditto
+	* ext/dl/cfunc.c: ditto
+	* ext/zlib/zlib.c: ditto
+	* ext/win32ole/win32ole.c: ditto
+	* ext/dbm/dbm.c: ditto
+	* ext/json/generator/generator.c: ditto
+	* ext/date/date_core.c: ditto
+
+Tue Apr 16 11:23:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/openssl/*: Document synonymous methods, by windwiny [GH-277]
+
+Mon Apr 15 22:21:42 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/fiddle/depend: New file.
+
+Mon Apr 15 22:01:02 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-electric.el (ruby-electric-insert): Check
+	  ruby-electric-is-last-command-char-expandable-punct-p here.
+
+	* misc/ruby-electric.el (ruby-electric-closing-char): New
+	  interactive function bound to closing characters.  Typing one of
+	  those closing characters right after the matching counterpart
+	  cancels the effect of automatic closing.  For example, typing
+	  "{" followed by "}" simply makes "{}" instead of "{ } }".
+
+Mon Apr 15 12:54:42 2013  Martin Bosslet  <Martin.Bosslet@gmail.com>
+
+	* ext/openssl/ossl_ssl.c: Correct shutdown behavior w.r.t GC.
+
+	* test/openssl/test_ssl.rb: Add tests to verify correct behavior.
+
+	[Bug #8240] Patch provided by Shugo Maeda. Thanks!
+
+Mon Apr 15 10:23:39 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/coverage/depend: fix id.h place as r40283.
+
+	* ext/coverage/extconf.rb: add topdir and topsrcdir to VPATH.
+
+Sun Apr 14 19:46:14 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/-test-/debug/depend: New file.
+
+	* ext/-test-/exception/depend: Ditto.
+
+	* ext/-test-/printf/depend: Ditto.
+
+	* ext/-test-/string/depend: Ditto.
+
+	* ext/coverage/depend: Ditto.
+
+	* ext/io/console/depend: Ditto.
+
+	* ext/io/nonblock/depend: Ditto.
+
+	* ext/io/wait/depend: Ditto.
+
+	* ext/openssl/depend: Ditto.
+
+	* ext/pathname/depend: Ditto.
+
+	* ext/psych/depend: Ditto.
+
+	* ext/zlib/depend: Ditto.
+
+Sun Apr 14 02:46:50 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#create_makefile): remove {$(VPATH)} other
+	  than nmake.
+
+	* ext/ripper/depend: use VPATH expecting removed by above.
+
+Sat Apr 13 23:06:20 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (timestamp_file): gather timestamp files in one
+	  directory from each extension directories.
+
+Sat Apr 13 21:09:02 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#create_makefile): output new macro
+	  disthdrdir to specify the path of id.h, parse.h and etc.
+
+	* ext/ripper/depend: use above macro.
+
+Sat Apr 13 20:28:08 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* Merge Onigmo 5.13.4 f22cf2e566712cace60d17f84d63119d7c5764ee.
+	  [bug] fix problem with optimization of \z (Issue #16) [Bug #8210]
+
+Sat Apr 13 18:56:15 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/ripper/depend: parse.h and id.h may be created on topdir.
+
+Sat Apr 13 12:08:16 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb: Add Vector#cross_product, patch by Luis Ezcurdia
+	  [fix GH-276] [rubyspec:81eec89a124]
+
+Sat Apr 13 10:20:37 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* struct.c (rb_struct_define_without_accessor, rb_struct_define),
+	  (rb_struct_s_def): hide member names array.
+
+	* struct.c (anonymous_struct, new_struct, setup_struct): split
+	  make_struct() for each purpose.
+
+Sat Apr 13 09:34:31 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/mkmf.rb: Add ruby/ruby.h, ruby/missing.h, ruby/intern.h,
+	  ruby/st.h and ruby/subst.h for ruby_headers in generated Makefile.
+
+	* ext/-test-/old_thread_select/depend: Update dependencies.
+
+	* ext/-test-/wait_for_single_fd/depend: Ditto.
+
+	* ext/bigdecimal/depend: Ditto.
+
+	* ext/curses/depend: Ditto.
+
+	* ext/digest/bubblebabble/depend: Ditto.
+
+	* ext/digest/depend: Ditto.
+
+	* ext/digest/md5/depend: Ditto.
+
+	* ext/digest/rmd160/depend: Ditto.
+
+	* ext/digest/sha1/depend: Ditto.
+
+	* ext/digest/sha2/depend: Ditto.
+
+	* ext/dl/callback/depend: Ditto.
+
+	* ext/dl/depend: Ditto.
+
+	* ext/etc/depend: Ditto.
+
+	* ext/nkf/depend: Ditto.
+
+	* ext/objspace/depend: Ditto.
+
+	* ext/pty/depend: Ditto.
+
+	* ext/readline/depend: Ditto.
+
+	* ext/ripper/depend: Ditto.
+
+	* ext/sdbm/depend: Ditto.
+
+	* ext/socket/depend: Ditto.
+
+	* ext/stringio/depend: Ditto.
+
+	* ext/strscan/depend: Ditto.
+
+	* ext/syslog/depend: Ditto.
+
+	* ext/-test-/num2int/depend: Removed.
+
+	* ext/dbm/depend: Ditto.
+
+	* ext/fcntl/depend: Ditto.
+
+	* ext/gdbm/depend: Ditto.
+
+	* ext/racc/cparse/depend: Ditto.
+
+Sat Apr 13 00:15:54 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/etc/etc.c (Init_etc): move Passwd and Group under Etc namespace
+	  as primary names.
+
+Fri Apr 12 21:06:55 2013  Tanaka Akira  <akr@fsij.org>
+
+	* common.mk: pack.o depends on internal.h.
+
+Fri Apr 12 20:59:24 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (ones): Use __builtin_popcountl if available.
+
+	* internal.h (GCC_VERSION_SINCE): Macro moved from pack.c.
+
+	* pack.c: Include internal.h for GCC_VERSION_SINCE.
+
+Fri Apr 12 18:29:42 2013  Tanaka Akira  <akr@fsij.org>
+
+	* common.mk: version.o depends on $(srcdir)/include/ruby/version.h
+	  instead of {$(VPATH)}version.h to avoid confusion by VPATH between
+	  top level version.h and include/ruby/version.h for build in-place.
+	  [ruby-dev:47249] [Bug #8256]
+
+Fri Apr 12 15:21:24 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_callee_setup_keyword_arg): non-symbol key is not
+	  a keyword argument, keep it as a positional argument.
+
+Fri Apr 12 11:58:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* array.c: Document synonymous methods, by windwiny [GH-277]
+	* bignum.c: ditto
+	* complex.c: ditto
+	* dir.c: ditto
+	* encoding.c: ditto
+	* enumerator.c: ditto
+	* numeric.c: ditto
+	* proc.c: ditto
+	* re.c: ditto
+	* string.c: ditto
+
+Thu Apr 11 23:41:46 2013  Tanaka Akira  <akr@fsij.org>
+
+	* common.mk: Add dependencies for include/ruby.h
+
+	* tool/update-deps: Use "make -p all miniruby ruby golf" to extract
+	  dependencies in makefiles.
+
+Thu Apr 11 23:21:17 2013  Tanaka Akira  <akr@fsij.org>
+
+	* tool/update-deps: Use "make -p all golf" to extract dependencies in
+	  makefiles.
+
+Thu Apr 11 21:02:19 2013  Tanaka Akira  <akr@fsij.org>
+
+	* common.mk: Dependency updated.
+
+	* tool/update-deps: Rewritten.
+
+Thu Apr 11 19:59:48 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* common.mk: partially revert r40183, which breaks building on
+	  other than source directory. (its commit log also says the same
+	  thing, but such failure is not reproducible on my environment
+	  and the commit breaks build on my environment)
+
+Thu Apr 11 16:10:01 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/fiddle/closure.c (USE_FFI_CLOSURE_ALLOC): define 0 on
+	  Mac OS X and Linux [Bug #3371]
+
+Thu Apr 11 13:19:22 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/drb/drbtest.rb (Drb{Core,Ary}#teardown): retry Process.kill
+	  if it fails with Errno::EPERM on Windows (workaround).
+	  [ruby-dev:47245] [Bug #8251]
+
+Thu Apr 11 11:11:38 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* dir.c: Fix a typo.
+
+Thu Apr 11 10:39:34 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/fiddle/closure.c (USE_FFI_CLOSURE_ALLOC): add missing case:
+	  RUBY_LIBFFI_MODVERSION is not defined (usually on Windows).
+
+Thu Apr 11 09:27:04 2013  Konstantin Haase  <me@rkh.im>
+
+	* dir.c (file_s_fnmatch): Document File::FNM_EXTGLOB flag.
+
+Thu Apr 11 09:17:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* README: Fix typo by Benjamin Winkler [Fixes GH-281]
+
+Thu Apr 11 06:15:51 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* regint.h: fix typo: _M_AMD86 -> _M_AMD64.
+
+	* siphash.c: ditto.
+
+	* st.c: ditto.
+
+Thu Apr 11 06:09:57 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/fiddle/extconf.rb: define RUBY_LIBFFI_MODVERSION macro.
+
+	* ext/fiddle/closure.c (USE_FFI_CLOSURE_ALLOC): define 0 or 1
+	  with platform and libffi's version. [Bug #3371]
+
+Thu Apr 11 05:30:43 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/mkmf.rb (pkg_config): Add optional argument "option".
+	  If it is given, it returns the result of
+	  `pkg-config --<option> <pkgname>`.
+
+Thu Apr 11 03:33:05 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/fiddle/closure.c (initialize): check mprotect's return value.
+	  If mprotect is failed because of PaX or something, its function call
+	  will cause SEGV.
+	  http://c5664.rubyci.org/~chkbuild/ruby-trunk/log/20130401T210301Z.diff.html.gz
+
+Wed Apr 10 17:39:13 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/bigdecimal/bigdecimal.c (VpCtoV): Initialize a local variable
+	  even when overflow.
+
+Wed Apr 10 12:32:37 2013  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_ll2big): Don't overflow on signed integer negation.
+
+	* ext/bigdecimal/bigdecimal.c (MUL_OVERFLOW_SIGNED_VALUE_P): New
+	  macro.
+	  (AddExponent): Don't overflow on signed integer multiplication.
+	  (VpCtoV): Don't overflow on signed integer arithmetic.
+	  (VpCtoV): Don't overflow on signed integer arithmetic.
+
+Wed Apr 10 06:32:12 2013  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (MUL_OVERFLOW_INT_P): New macro.
+
+	* sprintf.c (GETNUM): Don't overflow on signed integer multiplication.
+
+Tue Apr  9 20:38:20 2013  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (MUL_OVERFLOW_SIGNED_INTEGER_P): New macro.
+	  (MUL_OVERFLOW_FIXNUM_P): Ditto.
+	  (MUL_OVERFLOW_LONG_P): Ditto.
+
+	* array.c (rb_ary_product): Don't overflow on signed integer
+	  multiplication.
+
+	* numeric.c (fix_mul): Ditto.
+	  (int_pow): Ditto.
+
+	* rational.c (f_imul): Ditto.
+
+	* insns.def (opt_mult): Ditto.
+
+	* thread.c (sleep_timeval): Don't overflow on signed integer addition.
+
+	* bignum.c (rb_int2big): Don't overflow on signed integer negation.
+	  (rb_big2ulong): Ditto.
+	  (rb_big2long): Ditto.
+	  (rb_big2ull): Ditto.
+	  (rb_big2ll): Ditto.
+
+Tue Apr  9 19:45:44 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/open-uri.rb: Support multiple fields with same field
+	  name (like Set-Cookie).
+	  (OpenURI::Meta#metas): New accessor to obtain fields as a Hash from
+	  field name (string) to field values (array of strings).
+	  [ruby-core:37734] [Bug #4964] reported by ren li.
+
+Tue Apr  9 15:26:12 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_compile_each): append keyword hash to argument array
+	  to splat if needed.  [ruby-core:54094] [Bug #8236]
+
+Tue Apr  9 10:02:39 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (timestamp_file): gather timestamp files in one
+	  directory from each extension directories, with considering
+	  target_prefix.
+
+Tue Apr  9 04:57:59 JST 2013  Charles Oliver Nutter  <headius@headius.com>
+
+	* error.c: Capture EAGAIN, EWOULDBLOCK, EINPROGRESS exceptions and
+	  export them for use in WaitReadable/Writable exceptions.
+	* io.c: Create versions of EAGAIN, EWOULDBLOCK, EINPROGRESS that
+	  include WaitReadable and WaitWritable. Add rb_readwrite_sys_fail
+	  for nonblocking failures using those exceptions. Use that
+	  function in io_getpartial and io_write_nonblock instead of
+	  rb_mod_sys_fail
+	* ext/openssl/ossl_ssl.c: Add new SSLError subclasses that include
+	  WaitReadable and WaitWritable. Use those classes for
+	  write_would_block and read_would_block instead of rb_mod_sys_fail.
+	* ext/socket/ancdata.c: Use rb_readwrite_sys_fail instead of
+	  rb_mod_sys_fail in bsock_sendmsg_internal and
+	  bsock_recvmsg_internal.
+	* ext/socket/init.c: Use rb_readwrite_sys_fail instead of
+	  rb_mod_sys_fail in rsock_s_recvfrom_nonblock and
+	  rsock_s_connect_nonblock.
+	* ext/socket/socket.c: Use rb_readwrite_sys_fail instead of
+	  rb_mod_sys_fail in sock_connect_nonblock.
+	* include/ruby/ruby.h: Export rb_readwrite_sys_fail for use instead
+	  of rb_mod_sys_fail. Introduce new constants RB_IO_WAIT_READABLE and
+	  RB_IO_WAIT_WRITABLE for first arg to rb_readwrite_sys_fail.
+
+Tue Apr  9 02:44:32 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/socket/extconf.rb: $defs needs -D or -U.  nothing is added
+	  otherwize.
+
+	* ext/socket/extconf.rb: check struct in_addr6, which is defined in
+	  VC6 instead of in6_addr.
+
+	* ext/socket/option.c (optname_to_sym): fix macro name.
+
+	* ext/socket/constants.c (rsock_cmsg_type_arg): fix macro name.
+
+Mon Apr  8 23:57:21 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (id_for_setter): extract common code from const, class
+	  variable, instance variable setters.
+
+Mon Apr  8 23:55:53 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/depend (ENCOBJS, TRANSOBJS): use explicit path to ruby.h for
+	  nmake.
+
+	* ext/depend (ENCOBJS, TRANSOBJS): fix header dependency, VPATH has
+	  $(srcdir)/include/ruby but not $(srcdir)/include, so cannot find out
+	  ruby/ruby.h.  use ruby.h instead and ../ruby for include/ruby.h.
+
+Mon Apr  8 20:30:37 2013  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* ext/depend (ENCOBJS, TRANSOBJS): Add missing dependencies.
+
+Mon Apr  8 17:19:28 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/win32ole/win32ole.c (fole_missing): should check actual argument
+	  count before accessing.
+
+Mon Apr  8 16:03:55 2013  Yuki Yugui Sonoda  <yugui@google.com>
+
+	Fixes a build failure of ext/ripper/ripper.c on building out of place.
+	* common.mk (id.h, id.c): Always generated in $(srcdir).
+	(ext/ripper/ripper.c): Passes $(PATH_SEPARATOR) too to the sub make.
+
+Mon Apr  8 12:05:02 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* object.c (rb_obj_ivar_set): call to_str for string only once.
+	  to_str was called from rb_is_const_name and rb_to_id before.
+
+	* object.c (rb_mod_const_set): ditto.
+
+	* object.c (rb_mod_cvar_set): ditto.
+
+Sun Apr  7 13:56:16 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* test/ruby/test_require.rb (TestRequire#test_require_nonascii_path):
+	  RUBY_PLATFORM should escape as Regexp,
+	  because RUBY_PLATFORM may contain '.'.
+
+Sun Apr  7 10:44:01 2013  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/defines.h: Simplify the logic to include sys/select.h.
+	  This fixes a compilation error on Haiku (gcc2 and gcc4).
+
+	* configure.in: Use shared linker as $(CC) for Haiku.
+	  This fixes a build error on Haiku (gcc2).
+
+Sun Apr  7 10:41:30 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/resolv.rb (MDNSOneShot#sender): Delete an unused variable.
+
+Sun Apr  7 03:24:36 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c: use more generic type:
+	  * u_char -> unsigned char
+	  * u_short -> unsigned short
+	  * u_int -> unsigned int
+	  * u_long -> unsigned long
+	  * quad_t -> int64_t
+	  * u_quad_t -> uint64_t
+
+	* addr2line.c (imax): inline is defined by configure.
+
+Sun Apr  7 01:40:39 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-electric.el (ruby-electric-hash): New electric
+	  function that expands a hash sign inside a string or regexp to
+	  "#{}".
+
+	* misc/ruby-electric.el (ruby-electric-curlies): Do not insert
+	  spaces inside when the curly brace is a delimiter of %r, %w,
+	  etc.
+
+	* misc/ruby-electric.el (ruby-electric-curlies): Insert another
+	  space before a closing curly brace when
+	  ruby-electric-newline-before-closing-bracket is nil.
+
+Sun Apr  7 01:01:26 2013  Tanaka Akira  <akr@fsij.org>
+
+	* strftime.c (rb_strftime_with_timespec): Test yday range.
+	  [ruby-core:44088] [Bug #6247] reported by Ruby Submit.
+
+Sat Apr  6 23:46:54 2013  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* configure.in (AC_CHECK_HEADERS): atomic.h for Solaris atomic_ops.
+
+	* ruby_atomic.h: Skip using Solaris10 atomic_ops on Solaris 9 or
+	  earlier if atomic.h is not available. [ruby-dev:47229] [Bug #8228]
+
+Sat Apr  6 23:40:40 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/resolv.rb: Support LOC resources.
+	  [ruby-core:23361] [Feature #1436] by JB Smith.
+
+Sat Apr  6 23:38:09 2013  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* addr2line.c: quad_t and u_quad_t is not available on Solaris.
+	  __inline is not available with old compilers on Solaris.
+	  [ruby-dev:47229] [Bug #8227]
+
+Sat Apr  6 23:31:38 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/resolv.rb: Add one-shot multicast DNS support.
+	  [ruby-core:53387] [Feature #8089] by Eric Hodel.
+
+Sat Apr  6 22:12:01 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/resolv.rb (Resolv::DNS.fetch_resource): New method to obtain
+	  full result.
+	  [ruby-dev:43587] [Feature #4788] proposed by Makoto Kishimoto.
+
+Sat Apr  6 20:17:51 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/socket.c (rsock_sys_fail_raddrinfo): Renamed from
+	  rsock_sys_fail_addrinfo.
+	  (rsock_sys_fail_raddrinfo_or_sockaddr): Renamed from
+	  rsock_sys_fail_addrinfo_or_sockaddr.
+
+	* ext/socket/rubysocket.h: Follow the above change.
+
+Sat Apr  6 19:24:59 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/socket.c (rsock_sys_fail_sockaddr): Takes struct sockaddr
+	  and socklen_t instead of String object.
+	  (rsock_sys_fail_addrinfo_or_sockaddr): Follow the above change.
+
+	* ext/socket/rubysocket.h (rsock_sys_fail_sockaddr): Follow the above
+	  change.
+
+Sat Apr  6 14:28:23 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/rubysocket.h (SockAddrStringValueWithAddrinfo): New macro.
+	  (rsock_sockaddr_string_value_with_addrinfo): New declaration.
+	  (rsock_addrinfo_inspect_sockaddr): Ditto.
+	  (rsock_sys_fail_addrinfo): Ditto.
+	  (rsock_sys_fail_sockaddr_or_addrinfo): Ditto.
+
+	* ext/socket/raddrinfo.c (rsock_addrinfo_inspect_sockaddr): Renamed
+	  from addrinfo_inspect_sockaddr and exported.
+	  (rsock_sockaddr_string_value_with_addrinfo): New function to obtain
+	  string and possibly addrinfo object.
+
+	* ext/socket/socket.c (rsock_sys_fail_sockaddr): Don't use
+	  rsock_sys_fail_host_port which is IP dependent.  Invoke
+	  rsock_sys_fail_addrinfo.
+	  (rsock_sys_fail_addrinfo): New function using
+	  rsock_addrinfo_inspect_sockaddr.
+	  (rsock_sys_fail_addrinfo_or_sockaddr): New function.
+	  (sock_connect): Use SockAddrStringValueWithAddrinfo and
+	  rsock_sys_fail_addrinfo_or_sockaddr.
+	  (sock_connect_nonblock): Ditto.
+	  (sock_bind): Ditto.
+
+Sat Apr  6 13:34:20 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/socket.c (rsock_sys_fail_sockaddr): Delete 2nd argument.
+
+	* ext/socket/rubysocket.h (rsock_sys_fail_sockaddr): Follow above
+	  change.
+
+Sat Apr  6 13:13:39 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/socket.c (rsock_sys_fail_path): Use rb_str_inspect only
+	  for String to avoid SEGV.
+
+Sat Apr  6 12:40:16 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/rubysocket.h (rsock_sys_fail_host_port): Wrap by NORETURN.
+	  (rsock_sys_fail_path): Ditto.
+	  (rsock_sys_fail_sockaddr): Ditto.
+
+Sat Apr  6 11:49:35 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/socket.c (rsock_sys_fail_path): Use rb_str_inspect if the
+	  path contains a NUL.
+
+Sat Apr  6 11:39:19 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket: Improve socket exception message to show socket address.
+	  [ruby-core:45617] [Feature #6583] proposed Eric Hodel.
+
+	* ext/socket/rubysocket.h (rsock_sys_fail_host_port): Declared.
+	  (rsock_sys_fail_path): Ditto.
+	  (rsock_sys_fail_sockaddr): Ditto.
+
+	* ext/socket/udpsocket.c (udp_connect): Use rsock_sys_fail_host_port.
+	  (udp_bind): Ditto.
+	  (udp_send): Ditto.
+
+	* ext/socket/init.c (rsock_init_sock): Specify a string for rb_sys_fail
+	  argument.
+	  (make_fd_nonblock): Ditto.
+	  (rsock_s_accept): Ditto.
+
+	* ext/socket/ipsocket.c (init_inetsock_internal): Use
+	  rsock_sys_fail_host_port.
+
+	* ext/socket/socket.c (rsock_sys_fail_host_port): Defined.
+	  (rsock_sys_fail_path): Ditto.
+	  (rsock_sys_fail_sockaddr): Ditto.
+	  (setup_domain_and_type): Use rsock_sys_fail_sockaddr.
+	  (sock_connect_nonblock): Ditto.
+	  (sock_bind): Ditto.
+	  (sock_gethostname): Specify a string for rb_sys_fail argument.
+	  (socket_s_ip_address_list): Ditto.
+
+	* ext/socket/basicsocket.c (bsock_shutdown): Specify a string for
+	  rb_sys_fail argument.
+	  (bsock_setsockopt): Use rsock_sys_fail_path.
+	  (bsock_getsockopt): Ditto.
+	  (bsock_getpeereid): Refine the argument for rb_sys_fail.
+
+	* ext/socket/unixsocket.c (rsock_init_unixsock): Use
+	  rsock_sys_fail_path.
+	  (unix_path): Ditto.
+	  (unix_send_io): Ditto.
+	  (unix_recv_io): Ditto.
+	  (unix_addr): Ditto.
+	  (unix_peeraddr): Ditto.
+
+Sat Apr  6 11:23:18 2013  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/ruby/test_require.rb (TestRequire#test_require_nonascii_path):
+	  fix load path for encoding to run the test as stand-alone.
+
+Sat Apr  6 09:54:20 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* pack.c (NATINT_LEN): fix definition order, must be after
+	  NATINT_PACK.
+
+Sat Apr  6 03:11:07 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: fix symbol keys in coder
+	  emission.  Thanks @tjwallace
+	* test/psych/test_coder.rb: test for change
+
+Sat Apr  6 02:54:08 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/exception.rb: there should be only one exception
+	  base class. Fixes tenderlove/psych #125
+	* ext/psych/lib/psych.rb: require the correct exception class
+	* ext/psych/lib/psych/syntax_error.rb: ditto
+	* ext/psych/lib/psych/visitors/to_ruby.rb: ditto
+
+Sat Apr  6 02:30:28 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (new_defined): remove all extra parentheses, and return
+	  "nil" for defined? with empty expression.
+	  [ruby-core:54024] [Bug #8224]
+
+Sat Apr  6 02:06:04 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: correctly register
+	  self-referential strings. Fixes tenderlove/psych #135
+
+	* test/psych/test_string.rb: appropriate test.
+
+Sat Apr  6 01:21:56 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/init.c (cloexec_accept): Fix a compile error on
+	  Debian GNU/kFreeBSD.  Consider HAVE_ACCEPT4 is defined
+	  but SOCK_CLOEXEC is not defined.
+
+Sat Apr  6 00:19:30 2013  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* load.c (features_index_add): use rb_str_subseq() to specify C string
+	  position properly to fix require non ascii path.
+	  [ruby-core:53733] [Bug #8165]
+
+	* test/ruby/test_require.rb (TestRequire#test_require_nonascii_path):
+	  a test for the above.
+
+Fri Apr  5 20:41:49 2013  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/defines.h (HAVE_TRUE_LONG_LONG): Defined to distinguish
+	  availability of long long and availability of 64bit integer type.
+
+	* pack.c: Use HAVE_TRUE_LONG_LONG to distinguish q! and Q! support.
+
+Fri Apr  5 20:19:42 2013  Tanaka Akira  <akr@fsij.org>
+
+	* addr2line.c: Include ruby/missing.h to fix compile error on Debian.
+
+Fri Apr  5 19:39:52 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_compile_each): fix of defined? with empty
+	  expression.  [ruby-core:53999] [Bug #8220]
+
+Fri Apr  5 13:22:59 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/curses/curses.c (Init_curses): fix implementation function,
+	  crmode should be same as cbreak.  [ruby-core:54013] [Bug #8222]
+
+Fri Apr  5 12:06:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/curses/hello.rb: Typo in Curses example by Drew Blas
+	  [Fixes GH-273]
+
+Thu Apr  4 23:45:13 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/resolv.rb (bind_random_port): Rescue EACCES for SunOS.
+	  bind() on SunOS for port 2049 (nfs) and 4045 (lockd) causes
+	  EACCES with unprivileged process.  cf. PRIV_SYS_NFS in privileges(5)
+	  [ruby-core:48064] [Bug #7183] reported by Frank Meier.
+
+Thu Apr  4 23:24:45 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: Remove condition for bcc.
+
+Thu Apr  4 22:53:23 2013  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/ruby.h (FIX2LONG): Parenthesize the macro body.
+
+Thu Apr  4 22:32:32 2013  Tanaka Akira  <akr@fsij.org>
+
+	* time.c (time_strftime): Describe %L and %N truncates digits under
+	  the specified length.
+	  [ruby-core:52130] [Bug #7829]
+
+Thu Apr  4 22:08:46 2013  Tanaka Akira  <akr@fsij.org>
+
+	* object.c (rb_mod_cvar_set): Reverted "avoid inadvertent
+	  symbol creation" to avoid SEGV by
+	  Class.new.class_variable_set(1, 2).
+
+Thu Apr  4 20:07:19 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/pathname/pathname.c (path_write): New method.
+	  (path_binwrite): Ditto.
+	  [ruby-core:49468] [Feature #7378]
+
+Thu Apr  4 16:51:29 2013  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* thread_pthread.c: Fixes wrong scopes of #if USE_SLEEPY_TIMER_THREAD
+	  .. #endif sections.  This fixes a build error on NativeClient.
+
+Wed Apr  3 17:25:31 2013  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* thread_pthread.c (ruby_init_stack): Avoid using uninitialized value.
+	  stackaddr and size are not set if get_stack() fails.
+
+Thu Apr  4 16:55:08 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* struct.c (make_struct): avoid inadvertent symbol creation.
+	  (rb_struct_aref): ditto.
+	  (rb_struct_aset): ditto.
+
+Thu Apr  4 16:54:40 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_mod_const_set): avoid inadvertent symbol creation.
+	  (rb_obj_ivar_set): ditto.
+	  (rb_mod_cvar_set): ditto.
+
+Thu Apr  4 15:46:48 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enum.c (enum_inject): avoid inadvertent symbol creation.
+
+Thu Apr  4 14:37:07 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread.c (rb_thread_aref): avoid inadvertent symbol creation.
+	  (rb_thread_variable_get): ditto.
+	  (rb_thread_key_p): ditto.
+	  (rb_thread_variable_p): ditto.
+
+Thu Apr  4 11:33:57 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/openssl/ossl_bn.c (ossl_bn_to_i): Use bn2hex to speed up.
+	  In general, binary to/from decimal needs extra cost.
+
+Thu Apr  4 07:24:18 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: Specify arguments to test functions.
+
+Thu Apr  4 03:25:09 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/openssl/ossl_bn.c (ossl_bn_initialize): fix can't create from bn.
+
+Wed Apr  3 22:09:25 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: Test functions and libraries after headers.
+
+Wed Apr  3 21:23:29 2013  Tanaka Akira  <akr@fsij.org>
+
+	 * io.c (rb_io_seek_m): Accept :CUR, :END, :SET as "whence" argument.
+	   (interpret_seek_whence): New function.
+	   [ruby-dev:45818] [Feature #6643]
+
+Wed Apr  3 20:52:49 2013  Tanaka Akira  <akr@fsij.org>
+
+	* process.c: Describe the behavior which Ruby invokes a commandline
+	  directly without shell if the commandline is simple enough.
+	  [ruby-core:50459] [Bug #7489]
+
+Wed Apr  3 20:27:37 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/extmk.rb (extmake): Invoke Logging::log_close in a ensure
+	  clause.
+
+Wed Apr  3 18:53:58 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/extmk.rb (extmake): Use Logging.open to switch stdout and
+	  stderr.  Delay Logging::log_close until the failure message is
+	  written.  Write the failure message only if log file is opened.
+
+	* lib/mkmf.rb (Logging.log_opened?): New method.
+
+	  [ruby-dev:47215] [Bug #8209]
+
+Wed Apr  3 17:11:15 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (constat_apply): pass through unknown sequence which
+	  starts with ESC but is not followed by a bracket.  [ruby-core:53879]
+	  [Bug #8201]
+
+Wed Apr  3 16:35:32 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* bignum.c (rb_big_eq): hide intermediate Bignums not just freeing
+	  memory.  [ruby-core:53893] [Bug #8204]
+
+	* object.c (rb_obj_hide): hide an object by clearing klass.
+
+	* bignum.c (rb_big_eq): test as Fixnum if possible and get rid of zero
+	  length Bignum.  [ruby-core:53893] [Bug #8204]
+
+Tue Apr  2 23:56:03 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/securerandom.rb (SecureRandom.random_bytes): Use
+	  OpenSSL::Random.random_add instead of OpenSSL::Random.seed and
+	  specify 0.0 as the entropy.
+	  [ruby-core:47308] [Bug #6928]
+
+Tue Apr  2 20:24:52 2013  Tanaka Akira  <akr@fsij.org>
+
+	* pack.c: Support Q! and q! for long long.
+	  (natstr): Moved to toplevel.  Add q and Q if there is long long type.
+	  (endstr): Moved to toplevel.
+	  (NATINT_PACK): Consider long long.
+	  (NATINT_LEN_Q): New macro.
+	  (pack_pack): Support Q! and q!.
+	  (pack_unpack): Ditto.
+	  [ruby-dev:43970] [Feature #3946]
+
+Tue Apr  2 19:24:26 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/-test-/num2int/num2int.c: Define utility methods
+	  as module methods of Num2int.
+
+	* test/-ext-/num2int/test_num2int.rb: Follow the above change.
+
+Tue Apr  2 18:49:01 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/securerandom.rb: Don't use Array#to_s.
+	   [ruby-core:52058] [Bug #7811] fixed by zzak (Zachary Scott).
+
+Tue Apr  2 17:38:20 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* re.c (rb_reg_to_s): suppress duplicated charclass warning.
+	  Regexp#to_s suppress extra its whole regexp options by calling
+	  onig_new with its source, but it doesn't call rb_reg_preprocess.
+	  Therefore its Unicode escapes (\u{XXXX}) are given as is,
+	  and it may cause duplicated charclass warning for example
+	  "[\u{33}]" (3 is duplicated) or "[\u{a}\u{b}]" (u is duplicated).
+	  [ruby-core:53649] [Bug #8151]
+
+Tue Apr  2 16:00:06 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vm_dump.c (rb_print_backtrace): separate to ease showing C backtrace.
+
+	* internal.h (rb_print_backtrace): ditto.
+
+Tue Apr  2 15:22:09 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* test/ruby/envutil.rb (assert_separately): stop_auto_run of
+	  Test::Unit::Runner to prevent auto runner use ARGV.
+
+	* test/ruby/envutil.rb (assert_separately): add $: to separate process.
+
+	* test/ruby/envutil.rb (assert_separately): fail if stderr is not
+	  empty and ignore_stderr is false.
+
+Tue Apr  2 06:46:59 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/-test-/num2int/num2int.c: Rename utility methods
+	  to global functions to ease manual experiments.
+
+	* test/-ext-/num2int/test_num2int.rb: Follow the above change.
+
+Mon Apr  1 22:26:17 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/zlib/zlib.c (rb_gzfile_set_mtime): Use NUM2UINT.
+	  The old logic doesn't work well on LP64 platforms as:
+	  .. -2**63-1 => error,
+	  -2**63 .. -2**62-1 => success,
+	  -2**62 .. -2**31-1 => error,
+	  -2**31 .. 2**31-1 => success,
+	  2**31 .. 2**62-1 => error,
+	  2**62 .. 2**64-1 => success,
+	  2**64 ..  => error.
+
+Mon Apr  1 22:08:02 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* ext/zlib/zlib.c (Zlib::Inflate.new):
+	  Fix documentation syntax and naming errors.
+	  Based on patch by Robin Dupret. Fix GH-271.
+
+Mon Apr  1 21:22:31 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/-ext-/num2int/test_num2int.rb: Test small bignums.
+
+Mon Apr  1 21:10:56 2013  Tanaka Akira  <akr@fsij.org>
+
+	* numeric.c (rb_num2ulong_internal): Don't cast a negative double value
+	  into unsigned long, which is undefined behavior.
+	  (rb_num2ull): Don't cast a value bigger than LLONG_MAX into
+	  long long, which is undefined behavior.
+
+Mon Apr  1 20:57:57 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/-test-/num2int/num2int.c: Return string for result, instead of
+	  printing.
+
+	* test/-ext-/num2int/test_num2int.rb: updated to follow above change.
+
+Mon Apr  1 20:08:07 2013  Tanaka Akira  <akr@fsij.org>
+
+	* numeric.c (rb_num2long): Don't use SIGNED_VALUE uselessly.
+	  (check_int): Ditto.
+	  (check_short): Ditto.
+	  (rb_num2fix): Ditto.
+	  (rb_num2ulong_internal): Add a cast.
+
+Mon Apr  1 18:41:35 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: skip autoconf 2.64 and 2.66, 2.67 seems short-lived
+	  but stick on it for Debian Squeeze.
+
+Mon Apr  1 14:22:52 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: check clang version by predefined macro values.
+	  [Bug #8192]
+
+Mon Apr  1 12:05:15 2013  Tanaka Akira  <akr@fsij.org>
+
+	* numeric.c (check_uint): Take the 1st argument as unsigned long,
+	  instead of VALUE.  Refine the validity test conditions.
+	  (check_ushort): Ditto.
+
+Mon Apr  1 07:15:03 2013  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* configure.in: use quadrigraph to put '[' or ']'. [Bug #8192]
+
+Mon Apr  1 04:16:41 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: kick old clang. [ruby-dev:47204] [Bug #8192]
+
+Mon Apr  1 01:12:46 2013  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/ruby.h (FIX2ULONG): Make it consistent with NUM2ULONG.
+
+	* ext/-test-/num2int/num2int.c: Add utility methods for FIX2XXX tests.
+
+	* test/-ext-/num2int/test_num2int.rb: Add tests for FIX2XXX.
+
+Sun Mar 31 17:17:56 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (rb_mod_define_method): consider visibility in define_method.
+	  patch by mashiro <mail AT mashiro.org>.  fix GH-268.
+
+Sun Mar 31 15:40:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/configure.bat: try to fix option arguments split by commas and
+	  equals here.  this batch file no longer run with old command.com.
+
+	* tool/mkconfig.rb: no hacks for cmd.exe.
+
+Sun Mar 31 13:47:04 2013  Tanaka Akira  <akr@fsij.org>
+
+	* numeric.c (rb_num2ulong_internal): New function similar to
+	  rb_num2ulong but integer wrap around flag is also returned.
+	  (rb_num2ulong): Use rb_num2ulong_internal.
+	  (rb_num2uint): Use rb_num2ulong_internal and the wrap around flag is
+	  used instead of negative_int_p(val).
+	  (rb_num2ushort): ditto.
+
+Sun Mar 31 06:27:17 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (HAVE_METACLASS_P): should check FL_SINGLETON flag before get
+	  instance variable to get rid of wrong warning about __attached__.
+	  [ruby-core:53839] [Bug #8188]
+
+Sat Mar 30 14:11:28 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* bcc32: removed. agreed at
+	  http://bugs.ruby-lang.org/projects/ruby/wiki/DevelopersMeeting20130223Japan
+
+Sat Mar 30 03:58:00 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/file.c (code_page): use cp1252 instead of cp20127 as US-ASCII.
+	  fix [ruby-core:53079] [Bug #7996]
+	  reported and patched by mmeltner (Michael Meltner).
+
+Sat Mar 30 03:49:21 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (wrename): use MoveFileExW instead of MoveFileW,
+	  because the latter fails on cross device file move of some
+	  environments.
+	  fix [ruby-core:53492] [Bug #8109]
+	  reported by mitchellh (Mitchell Hashimoto).
+
+Fri Mar 29 22:09:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread.c (rb_mutex_synchronize_m): yield no block params.  patch by
+	  splattael (Peter Suschlik) in [ruby-core:53773] [Bug #8097].
+	  fix GH-266.
+
+Fri Mar 29 16:51:39 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (argf_next_argv): set init flag if succeeded to forward, after
+	  skipping.
+
+	* io.c (argf_block_call_i, argf_block_call): no more forwarding if
+	  forwarded after skipping.  [ruby-list:49185]
+
+	* io.c (argf_close): deal with init flag.
+
+	* io.c (argf_block_call_i, argf_block_call): forward next file if
+	  skipped while iteration, to get rid of IOError.  [ruby-list:49185]
+
+Fri Mar 29 11:09:48 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (configuration): not include all CFLAGS in CXXFLAGS, to
+	  use different set than C for C++.  [ruby-core:45273] [Bug #6504]
+
+Fri Mar 29 10:24:10 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/io.h: undef POSIX compliant names on AIX, which are no
+	  longer needed.  patch suggested by edelsohn (David Edelsohn) in
+	  [ruby-core:53815].  [Bug #8174]
+
+Fri Mar 29 06:39:42 2013  Tanaka Akira  <akr@fsij.org>
+
+	* numeric.c (rb_num2ull): Cast double to unsigned LONG_LONG via
+	  LONG_LONG instead of double to unsigned LONG_LONG directly.
+	  This is a challenge to fix a test_num2ull(TestNum2int)
+	  failure (NUM2ULL(-1.0) should be "18446744073709551615" but was "0")
+	  on Mac OS X with 32bit clang.
+	  http://a.mrkn.jp/~mrkn/chkbuild/mountain_lion/ruby-trunk-m32-o0/log/20130328T191100Z.diff.html.gz
+
+Fri Mar 29 00:54:54 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MAIN_DOES_NOTHING): ensure symbols for tests to be
+	  preserved.  [ruby-core:53745] [Bug #8169]
+
+Thu Mar 28 23:11:25 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/resolv.rb: Test Windows platform by detecting LoadError when
+	  require 'win32/resolv' suggested by Nobuyoshi Nakada [ruby-core:53389].
+	  [ruby-core:53388] [Feature #8090] Reported by Charles Nutter.
+
+Thu Mar 28 23:10:10 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/io.h: rename SVR3,4 member names as POSIX compliant,
+	  to get rid of conflict on AIX.  [ruby-core:53765] [Bug #8174]
+
+Thu Mar 28 18:22:21 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/-ext-/num2int/test_num2int.rb: extract
+	  assert_num2i_success_internal and assert_num2i_error_internal and
+	  provide assertion messages as "NUM2XXX(NNN)".
+
+Thu Mar 28 07:05:25 2013  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/intern.h: Delete redundant inclusions caused by
+	  AC_INCLUDES_DEFAULT in defines.h.
+
+	* include/ruby/defines.h: Ditto.
+
+	* include/ruby/ruby.h: Ditto.
+
+	* include/ruby/st.h: Ditto.
+
+Thu Mar 28 06:51:31 2013  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/defines.h: Fix a compilation error on NetBSD,
+	  "type of formal parameter 1 is incomplete" for the rb_thread_wait_for
+	  invocation in rb_file_flock, by including header files as
+	  AC_INCLUDES_DEFAULT of autoconf.
+
+Wed Mar 27 22:09:14 2013  Tanaka Akira  <akr@fsij.org>
+
+	* numeric.c (LONG_MIN_MINUS_ONE_IS_LESS_THAN): New macro.
+	  (LLONG_MIN_MINUS_ONE_IS_LESS_THAN): Ditto.
+	  (rb_num2long): Use LONG_MIN_MINUS_ONE_IS_LESS_THAN.
+	  (rb_num2ulong): Ditto.
+	  (rb_num2ll): Use LLONG_MIN_MINUS_ONE_IS_LESS_THAN.
+	  (rb_num2ull): Ditto.
+
+	* test/-ext-/num2int/test_num2int.rb (assert_num2i_success): Test the
+	  value converted into a Float if Float can represent the value
+	  exactly.
+	  (assert_num2i_error): Ditto.
+
+Wed Mar 27 20:59:47 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/-ext-/num2int/test_num2int.rb (assert_num2i_success): New
+	  utility method.
+	  (assert_num2i_error): Ditto.
+
+Wed Mar 27 20:37:59 2013  Tanaka Akira  <akr@fsij.org>
+
+	* time.c (num_exact): Use to_r method only if to_int method is
+	  available.
+	  [ruby-core:53764] [Bug #8173] Reported by Hiro Asari.
+
+Wed Mar 27 12:07:40 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/-ext-/num2int/test_num2int.rb (test_num2ll): test LLONG_MIN,
+	  not LONG_MIN.
+
+Wed Mar 27 12:02:45 2013  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (TIMET_MAX_PLUS_ONE): definition simplified.
+
+Wed Mar 27 06:39:41 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MAIN_DOES_NOTHING): force to refer symbols for tests
+	  to be preserved.  [ruby-core:53745] [Bug #8169]
+
+Wed Mar 27 05:15:37 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (RUBY_REPLACE_TYPE): define SIGNEDNESS_OF_type same as
+	  check_signedness of mkmf.rb.
+
+	* internal.h (TIMET_MAX, TIMET_MIN, TIMET_MAX_PLUS_ONE): use
+	  SIGNEDNESS_OF_TIME_T.
+
+Wed Mar 27 00:28:45 2013  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (TIMET_MAX_PLUS_ONE): Defined.
+
+	* thread.c (double2timeval): Saturate out-of-range values.
+
+Tue Mar 26 23:41:18 2013  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h: Define TIMET_MAX and TIMET_MIN here.
+
+	* time.c: Remove TIMET_MAX and TIMET_MIN definitions.
+
+	* thread.c: Ditto.
+
+	* thread_pthread.c: Remove TIMET_MAX definition.
+
+	* thread_win32.c: Ditto.
+
+Tue Mar 26 22:31:10 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/socket.c (sockaddr_len): return the shortest length for
+	  unknown socket address.
+
+Tue Mar 26 22:14:46 2013  Tanaka Akira  <akr@fsij.org>
+
+	* thread.c (double2timeval): convert the infinity to TIME_MAX to avoid
+	  SEGV by Thread.new {}.join(Float::INFINITY) on
+	  Debian GNU/Linux (amd64).
+
+Mon Mar 25 07:09:20 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rinda/tuplespace.rb:  Only return tuple entry once on move,
+	  either through port or regular return, not both.  This results in a
+	  120% speedup when combined with #8125.  Patch by Joel VanderWerf.
+	  [ruby-trunk - Feature #8119]
+
+Mon Mar 25 06:59:01 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* test/rinda/test_rinda.rb:  Skip IPv6 tests if no IPv6 addresses
+	  exist.  Skip fork-dependent test if fork is not available.
+	  [ruby-trunk - Bug #8159]
+
+Sun Mar 24 10:38:24 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* addr2line.c (putce): suppress unused return value warning.
+
+Mon Mar 25 02:01:03 2013  Narihiro Nakamura  <authornari@gmail.com>
+
+	* proc.c (bm_free): need to clean up the mark flag of a free and
+	  unlinked method entry. [Bug #8100] [ruby-core:53439]
+
+Sun Mar 24 22:13:51 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (rb_str_rpartition): revert r39903, and convert byte offset
+	  to char offset; the return value of rb_reg_search is byte offset,
+	  but other than it of rb_str_rpartition expects char offset.
+	  [Bug #8138] [ruby-dev:47183]
+
+Sun Mar 24 18:29:46 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* string.c (rb_str_rpartition): Fix String#rpartition(/re/)
+	  against a multibyte string. [Bug #8138] [ruby-dev:47183]
+
+Sun Mar 24 13:42:24 2013  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (GC_ENABLE_LAZY_SWEEP): new macro to switch lazy sweeping
+	  for debugging. [Feature #8024] [ruby-dev:47135]
+
+Sun Mar 24 12:55:47 2013  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c: We have no chance to expand the heap when lazy sweeping is
+	  restricted. So collecting is often invoked if there is not
+	  enough free space in the heap. Try to expand heap when this is
+	  the case.
+
+Sun Mar 24 11:03:31 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_require.rb: Remove temporally files in the tests.
+
+	* test/ruby/test_rubyoptions.rb: Ditto.
+
+	* test/logger/test_logger.rb: Ditto.
+
+	* test/psych/test_psych.rb: Ditto.
+
+	* test/readline/test_readline.rb: Ditto.
+
+	* test/syslog/test_syslog_logger.rb: Ditto.
+
+	* test/webrick/test_httpauth.rb: Ditto.
+
+	* test/zlib/test_zlib.rb: Ditto.
+
+Sun Mar 24 05:36:29 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rinda/ring.rb:  Added documentation for multicast support.
+
+	* NEWS:  Point to above documentation.
+
+Sun Mar 24 05:32:39 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* test/rinda/test_rinda.rb:  Restore tests commented out while fixing
+	  test slowdown bug before r39895.
+
+Sun Mar 24 05:03:36 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rinda/ring.rb:  Add multicast support to Rinda::RingFinger and
+	  Rinda::RingServer.  [ruby-trunk - Bug #8073]
+	* test/rinda/test_rinda.rb:  Test for the above.
+
+	* NEWS: Update with Rinda multicast support
+
+Sun Mar 24 04:13:27 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* test/rinda/test_rinda.rb:  Fixed test failures in r39890 and r39891
+	  due to stopping DRb service.
+
+Sun Mar 24 03:34:02 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rinda/rinda.rb:  Fixed loss of tuple when remote is alive but the
+	  call stack was unwound.  Patch by Joel VanderWerf.
+	  [ruby-trunk - Bug #8125]
+	* test/rinda/test_rinda.rb:  Test for the above.
+
+Sun Mar 24 02:14:53 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/mkmf/test_have_macro.rb: remove temporally files in the tests.
+
+Sat Mar 23 23:50:04 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (kprintf): added from FreeBSD libstand's printf.
+	  this is consided as async signal safe function.
+
+	* addr2line.c (rb_dump_backtrace_with_lines): use kfprintf.
+	  [Bug #8144] [ruby-core:53632]
+
+Sat Mar 23 23:28:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_divide): Use Qnil and NIL_P
+	  instead of (VALUE)0 as a return value.
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_div): ditto.
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_divremain): ditto.
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_remainder): ditto.
+
+Sat Mar 23 17:39:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (check_funcall_respond_to): preserve passed_block, which
+	  is modified in vm_call0_body() via vm_call0(), and caused a bug of
+	  rb_check_funcall() by false negative result of rb_block_given_p().
+	  re-fix [ruby-core:53650] [Bug #8153].
+	  [ruby-core:53653] [Bug #8154]
+
+Fri Mar 22 17:48:34 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/forwardable.rb (Forwardable::FILE_REGEXP): create regexp object
+	  outside sources for eval, to reduce allocations in def_delegators
+	  wrappers.  //o option does not make each regexps shared.  patch by
+	  tmm1 (Aman Gupta) in [ruby-core:53620] [Bug #8143].
+
+Fri Mar 22 17:38:42 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* load.c (rb_feature_p), vm_core.h (rb_vm_struct): turn
+	  loaded_features_index into st_table.  patches by tmm1 (Aman Gupta)
+	  in [ruby-core:53251] and [ruby-core:53274] [Bug #8048]
+
+Fri Mar 22 10:29:00 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/bigdecimal/bigdecimal.c: Fix style.
+
+Fri Mar 22 05:30:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (ambiguous_operator): refine warning message, since this
+	  warning is shown after literal too.
+
+Fri Mar 22 04:51:14 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_callee_setup_keyword_arg): should check required
+	  keyword arguments even if rest hash is defined.  [ruby-core:53608]
+	  [Bug #8139]
+
+Fri Mar 22 01:00:17 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* process.c (rb_execarg_addopt, run_exec_pgroup): use rb_pid_t
+	  instead of pid_t.
+
+	* ext/pty/pty.c (raise_from_check, pty_check): ditto.
+
+Fri Mar 22 00:04:15 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (rb_dump_backtrace_with_lines): output line at once.
+
+Thu Mar 21 23:17:08 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread.c (ruby_kill): get rid of deadlock on signal 0.
+	  [ruby-dev:47182] [Bug #8137]
+
+Thu Mar 21 22:39:46 2013  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* marshal.c (marshal_dump, marshal_load): workaround for segv on
+	  Intel Solaris compiled with Oracle SolarisStudio 12.3.
+	  Partly revert r38174. [ruby-core:52042] [Bug #7805]
+
+Thu Mar 21 16:48:06 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (simple_re_meta): escape all closing characters, not only
+	  round parenthesis.  [ruby-core:53578] [Bug #8133]
+
+Thu Mar 21 13:50:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_core.h (UNINITIALIZED_VAR): suppress warnings by clang 4.2.
+	  [ruby-core:51742] [Bug #7756]
+
+Thu Mar 21 07:34:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/date/date_core.c: Typo in Date::MONTHNAMES by Matt Gauger
+	  [GH fixes #261]
+
+Wed Mar 20 22:53:14 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (find_library): fix to format message.
+	  [ruby-core:53568] [Bug #8130]
+
+Wed Mar 20 22:52:52 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (install_dirs, with_destdir): prefix with DESTDIR
+	  directories to install only unless bundled extension libraries.
+	  [ruby-core:53502] [Bug #8115]
+
+Wed Mar 20 17:47:53 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/win32ole/test_err_in_callback.rb (TestErrInCallBack#setup):
+	  allow using different root for source and build directories.
+	  this may fixes a minor problem of r39834.
+
+Wed Mar 20 16:40:48 2013  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/ruby/test_signal.rb (test_hup_me): skip if HUP isn't supported.
+	  On Windows this test causes ArgumentError.
+
+Wed Mar 20 16:24:12 2013  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* test/rubygems/test_gem_installer.rb (test_install_extension_flat):
+	  use ruby in build directory in case ruby is not installed.
+	  [ruby-core:53265] [Bug #8058]
+
+Wed Mar 20 15:22:07 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/win32ole/test_err_in_callback.rb (TestErrInCallBack#setup): use
+	  relative path to get rid of "too long commandline" error.
+
+Wed Mar 20 04:27:42 2013  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* test/rinda/test_rinda.rb: remove unused variables.
+	  patched by Vipul A M <vipulnsward@gmail.com>
+
+Wed Mar 20 04:15:32 2013  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* ext/bigdecimal/bigdecimal.c: fixed typo.
+	  patched by Vipul A M <vipulnsward@gmail.com>
+
+Sat Mar 16 03:40:49 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/ruby/test_signal.rb (test_hup_me): added a few comments.
+
+Sat Mar 16 03:39:38 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (ruby_kill): added a few comments.
+
+Sat Mar 16 03:36:56 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (ruby_kill): release GVL while waiting signal delivered.
+
+Tue Mar 19 19:50:48 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ruby_kill (internal.h, thread.c): use rb_pid_t instead of pid_t.
+	  this fixes the build failure of mswin introduced at r39819.
+
+Tue Mar 19 17:09:30 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_conv_enc_opts): convert with one converter, instead
+	  of re-creating converters for each buffer expansion.
+
+Tue Mar 19 17:06:50 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (glob_helper): compose HFS file names from UTF8-MAC.
+	  [ruby-core:48745] [Bug #7267]
+
+Sat Mar 16 01:44:29 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* internal.h: added a declaration of ruby_kill().
+	* thread.c (ruby_kill): helper function of kill().
+
+	* signal.c (rb_f_kill): use ruby_kill() instead of kill().
+	* signal.c (rb_f_kill): call rb_thread_execute_interrupts()
+	  to ensure that make SignalException if sent a signal
+	  to myself. [Bug #7951] [ruby-core:52864]
+
+	* vm_core.h (typedef struct rb_thread_struct): added
+	  th->interrupt_cond.
+	* thread.c (rb_threadptr_interrupt_common): added to
+	  initialization of th->interrupt_cond.
+	* thread.c (thread_create_core): ditto.
+
+	* test/ruby/test_signal.rb (TestSignal#test_hup_me): test for
+	  the above.
+
+Sat Mar 16 00:42:39 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (linux_iocparm_len): enable only exist _IOC_SIZE().
+	  Because musl libc doesn't have it. [Bug #8051] [ruby-core:53229]
+
+Tue Mar 19 10:05:04 2013  Shota Fukumori  <her@sorah.jp>
+
+	* ext/objspace/objspace.c: Fix typo in doc. Patch by Sho Hashimoto.
+	  [Bug #8116] [ruby-dev:47177]
+
+Tue Mar 19 02:13:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* configure.in: set ac_cv_prog_cxx if CXX is supplied.
+
+Tue Mar 19 01:18:00 2013  Kenta Murata  <mrkn@mrkn.jp>
+
+	* configure.in: Fix c++ compiler auto-selection not only for
+	  Darwin 11.x, but also the other versions of Darwin.
+
+Tue Mar 19 00:26:22 2013  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c: Improve accuracy of objspace_live_num() and
+	  allocated/freed counters. patched by tmm1(Aman Gupta).
+	  [Bug #8092] [ruby-core:53392]
+
+Mon Mar 18 21:42:48 2013  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c: Avoid unnecessary heap growth. patched by tmm1(Aman Gupta).
+	  [Bug #8093] [ruby-core:53393]
+
+Mon Mar 18 17:58:36 2013  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c: Fix unlimited memory growth with large values of
+	  RUBY_FREE_MIN. patched by tmm1(Aman Gupta).
+	  [Bug #8095] [ruby-core:53405]
+
+Mon Mar 18 14:46:19 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/win32ole/test_err_in_callback.rb
+	  (TestErrInCallBack#test_err_in_callback): shouldn't create a file in
+	  the top of build directory.
+
+Mon Mar 18 13:29:52 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vm_dump.c (backtrace): on darwin use custom backtrace() to trace
+	  beyond _sigtramp. darwin's backtrace can't trace beyond signal
+	  trampoline with sigaltstack.
+
+	* configure.in: check execinfo.h on darwin.
+
+Mon Mar 18 11:03:23 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vm_exec.h (END_INSN): revert r39517 because the segv seems fixed by
+	  r39806.
+
+Mon Mar 18 10:41:06 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vm_exec.c: Correct predefined macro name. This typo is introduced by
+	  r36534 and should be backported to ruby_2_0_0.
+
+Mon Mar 18 03:18:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* array.c: Typo in Array#delete by Timo Sand [GH fixes #258]
+
+Mon Mar 18 01:14:56 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* io.c (io_fillbuf): show fd number on failure to debug.
+	  http://c5632.rubyci.org/~chkbuild/ruby-trunk/log/20130316T050302Z.diff.html.gz
+
+Sun Mar 17 02:38:21 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* ext/date/date_core.c: include sys/time.h for avoiding implicit
+	  declaration of gettimeofday().
+
+Sun Mar 17 00:55:31 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* include/ruby/missing.h: removed __linux__. it's unnecessary.
+
+Fri Mar 15 14:57:16 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c: disabled _FORTIFY_SOURCE for avoid to hit glibc bug.
+	  [Bug #8080] [ruby-core:53349]
+	* test/ruby/test_io.rb (TestIO#test_io_select_with_many_files):
+	  test for the above.
+
+Wed Mar 13 15:16:35 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* include/ruby/missing.h (__syscall): moved to...
+	* io.c: here. because __syscall() is only used from io.c.
+
+	* include/ruby/missing.h: move "#include <sys/type.h>" to ....
+	* include/ruby/intern.h: here. because it was introduced for
+	  fixing NFDBITS issue. [ruby-core:05179].
+
+Wed Mar 13 14:38:53 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* include/ruby/missing.h (struct timespec): include <sys/time.h>
+
+Wed Mar 13 13:54:45 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: check struct timeval exist or not.
+	* include/ruby/missing.h (struct timeval): check HAVE_STRUCT_TIMEVAL
+	  properly. and don't include sys/time.h if struct timeval exist.
+
+	* file.c: include sys/time.h explicitly.
+	* random.c: ditto.
+	* thread_pthread.c: ditto.
+	* time.c: ditto.
+	* ext/date/date_strftime.c: ditto.
+
+Fri Mar 15 14:45:02 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in (_FORTIFY_SOURCE): added a few comments.
+
+Fri Mar 15 14:17:55 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread_pthread.c (numberof): renamed from ARRAY_SIZE() because
+	  other all files use numberof().
+
+Say Mar 15 01:33:00 2013  Charles Oliver Nutter <headius@headius.com>
+
+	* test/ruby/test_lazy_enumerator.rb (TestLazyEnumerator#test_drop_while):
+	  Modify while condition to show dropping remains off after first false
+	  value. This change was made in 39711.
+
+Fri Mar 15 23:06:18 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* time.c (GetTimeval): check if already initialized instance.
+
+	* time.c (GetNewTimeval): check if newly created instance.
+
+	* time.c (time_init_0, time_init_1, time_init_copy, time_mload): must
+	  be newly created instance.  [ruby-core:53436] [Bug #8099]
+
+Fri Mar 15 14:51:33 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (rb_sys_fail_path_with_func): share same function, and path
+	  may be nil.
+
+Fri Mar 15 08:24:51 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* io.c (rb_sys_fail_path): define & use rb_sys_fail_path0 like r39752
+
+Fri Mar 15 04:08:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* proc.c: Typo in Proc.arity found by Jack Nagel [Bug #8094]
+
+Thu Mar 14 16:59:09 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (rb_cv_function_name_string): macro for function name
+	  string predefined identifier, __func__ in C99, or __FUNCTION__ in
+	  gcc.
+
+	* file.c (rb_sys_fail_path): use RUBY_FUNCTION_NAME_STRING.
+
+Thu Mar 14 14:12:34 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* file.c (rb_sys_fail_path): use rb_sys_fail_path0 only on GCC.
+	  __func__ is C99 feature.
+
+Thu Mar 14 12:59:59 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* file.c (rb_sys_fail_path0): add to append the name of called function
+	  to ease debugging for example blow umask_spec failure.
+	  http://fbsd.rubyci.org/~chkbuild/ruby-trunk/log/20130309T010202Z.diff.html.gz
+
+	* file.c (rb_sys_fail_path): use rb_sys_fail_path0.
+
+Thu Mar 14 12:53:15 2013  Luis Lavena  <luislavena@gmail.com>
+
+	* win32/file.c (get_user_from_path):  add internal function that retrieves
+	  username from supplied path (refactored).
+	* win32/file.c (rb_file_expand_path_internal):  refactor expansion of user
+	  home to use get_user_from_path and cover dir_string corner cases.
+	  [ruby-core:53168] [Bug #8034]
+
+Thu Mar 14 11:53:01 2013  Narihiro Nakamura  <authornari@gmail.com>
+
+	* NEWS: describe RUBY_HEAP_SLOTS_GROWTH_FACTOR.
+
+Thu Mar 14 10:01:12 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/globals.rdoc:  $? is thread-local
+
+Wed Mar 13 23:25:59 2013  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c: allow to tune growth of heap by environment variable
+	  RUBY_HEAP_SLOTS_GROWTH_FACTOR. patched by tmm1(Aman Gupta).
+	  [Feature #8015] [ruby-core:53131]
+
+Wed Mar 13 19:43:46 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* doc/irb/irb.rd.ja: fix typo
+
+	* ext/tk/MANUAL_tcltklib.eng: fix typos
+
+	* ext/tk/sample/tktextframe.rb (Tk#component_delegates): fix typo
+
+Wed Mar 13 15:13:04 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (rb_obj_singleton_methods): collect methods from the origin
+	  class.  [ruby-core:53207] [Bug #8044]
+
+Wed Mar 13 14:51:26 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_method.c (rb_export_method): directly override the flag of method
+	  defined in prepending class too, not adding zsuper entry.
+	  [ruby-core:53106] [Bug #8005]
+
+Wed Mar 13 13:06:26 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (rm, shvar_to_cpp, unexpand_shvar): local is not
+	  available on old shells.
+
+	* configure.in (shvar_to_cpp): escape quotes for old shells.
+	  [Bug #7959] [Bug #8071]
+
+Wed Mar 13 11:11:07 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* object.c (Init_Object): remove Module#used, which has been
+	  introduced in Ruby 2.0 by mistake.  [Bug #7916] [ruby-core:52719]
+
+Wed Mar 13 05:49:29 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/irb.rb:  Fix typo
+
+Tue Mar 12 22:20:47 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_set_arguments, iseq_compile_each): support required
+	  keyword arguments.   [ruby-core:51454] [Feature #7701]
+
+	* iseq.c (rb_iseq_parameters): ditto.
+
+	* parse.y (f_kw, f_block_kw): ditto.  this syntax is still
+	  experimental, the notation may change.
+
+	* vm_core.h (rb_iseq_struct): ditto.
+
+	* vm_insnhelper.c (vm_callee_setup_keyword_arg): ditto.
+
+Tue Mar 12 17:02:53 2013  TAKANO Mitsuhiro <tak@no32.tk>
+
+	* date_core.c: clearly specify operator precedence.
+
+Tue Mar 12 17:00:45 2013  TAKANO Mitsuhiro <tak@no32.tk>
+
+	* insns.def: fix condition.
+
+Tue Mar 12 16:48:19 2013  TAKANO Mitsuhiro <tak@no32.tk>
+
+	* rational.c: fix dangling if, else-if and else.
+
+Tue Mar 12 06:27:59 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/commands/setup_command.rb:  Don't delete non-rubygems
+	  files when installing RubyGems.
+	* test/rubygems/test_gem_commands_setup_command.rb:  Test for the
+	  above.
+
+	* lib/rubygems/ext/ext_conf_builder.rb:  Use full path to siteconf.rb
+	  in case the extconf.rb changes directories (like memcached does).
+
+	* lib/rubygems/package.rb:  Remove double slash from path.
+	* test/rubygems/test_gem_package.rb:  Test for the above.
+	* test/rubygems/test_gem_package_old.rb:  ditto.
+
+	* lib/rubygems/source.rb:  Revert automatic HTTPS upgrade
+	* lib/rubygems/spec_fetcher.rb:  ditto.
+	* test/rubygems/test_gem_remote_fetcher.rb:  ditto.
+	* test/rubygems/test_gem_source.rb:  ditto.
+	* test/rubygems/test_gem_spec_fetcher.rb:  ditto.
+
+Tue Mar 12 02:25:19 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/smtp.rb:  Added Net::SMTP#rset method to implement the SMTP
+	  RSET command.  [ruby-trunk - Feature #5373]
+	* NEWS:  ditto.
+	* test/net/smtp/test_smtp.rb:  Test for the above.
+
+Mon Mar 11 22:44:57 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/resolv-replace.rb (TCPSocket#initialize): resolve the 3rd
+	  argument only if non-nil value is given.
+	  [ruby-dev:47150] [ruby-trunk - Bug #8054] reported and analyzed by
+	  mrkn.
+
+Mon Mar 11 19:22:54 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/mkmf/base.rb: class name conflict.
+
+Mon Mar 11 18:45:09 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* enumerator.c (enumerator_with_index): try to convert given offset to
+	  integer. fix bug introduced in r39594.
+
+Mon Mar 11 17:27:57 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* test/ruby/envutil.rb (EnvUtil.with_default_external): add for
+	  changing Encoding.default_external without warnings.
+
+	* test/ruby/envutil.rb (EnvUtil.with_default_internal): ditto.
+
+	* test/ruby/test_io_m17n.rb: use above with_default_external.
+
+Mon Mar 11 16:57:00 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* io.c (extract_binmode): raise error even if binmode and textmode
+	  don't conflict. [Bug #5918] [ruby-core:42199]
+
+Mon Mar 11 12:25:12 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* Merge Onigmo d4bad41e16e3eccd97ccce6f1f96712e557c4518.
+	  fix lookbehind assertion fails with /m mode enabled. [Bug #8023]
+	  fix \Z matches where it shouldn't. [Bug #8001]
+
+Mon Mar 11 11:53:35 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#dir_config, MakeMakefile#_libdir_basename):
+	  defer use of instance variable until needed.  [Bug #8074]
+
+Thu Mar  7 10:42:28 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* lib/thread.rb (Queue#clear): return self.
+	  Patch by Cubing Cube. Thank you! [Bug #7947] [ruby-dev:47098]
+	* lib/thread.rb (Queue#push): ditto.
+	* lib/thread.rb (SizedQueue#push): ditto.
+	* test/thread/test_queue.rb: add tests for the above.
+
+Thu Mar  7 10:40:49 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* tool/change_maker.rb (#diff2index): check Encoding::BINARY.
+	  BASERUBY may still be 1.8.x.
+
+Thu Mar  7 08:47:42 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* NEWS (Mutex#owned?): no longer experimental.
+
+Sun Mar 10 23:38:15 2013  Luis Lavena  <luislavena@gmail.com>
+
+	* win32/file.c (rb_file_expand_path_internal):  Expand home directory when
+	  used as second parameter (dir_string).  [ruby-core:53168] [Bug #8034]
+	* test/ruby/test_file_exhaustive.rb: add test to verify.
+
+Sun Mar 10 23:27:05 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/rubygems/ext/ext_conf_builder.rb (Gem::Ext::ExtConfBuilder.build):
+	  it is impossible to predict which file will be installed to where,
+	  by the arguments, so use intermediate destination directory always.
+	  [Bug #7698]
+
+Sun Mar 10 17:00:22 2013  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* complex.c: edited rdoc.
+	* rational.c: ditto.
+
+Sun Mar 10 15:02:39 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* process.c (setup_communication_pipe): remove unused function.
+	  it was unintentionally added r39683.
+
+Wed Mar  6 00:30:40 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* tool/gen_ruby_tapset.rb: add tapset generator.
+
+Wed Mar  6 03:27:43 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* probes.d (symbol-create): change argument name `string' to
+	  `str'. `string' is a keyword for systemtap.
+
+Tue Mar  5 22:23:01 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* probes.d: added argument name
+
+Thu Mar  7 01:17:00 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/thread/test_queue.rb (TestQueue#test_thr_kill): reduce
+	  iterations from 2000 to 250. When running on uniprocessor
+	  systems, every th.kill needs TIME_QUANTUM_USEC time (i.e.
+	  100msec on posix systems). Because, "r.read 1" is 3 steps
+	  operations that 1) release GVL 2) read 3) acquire gvl and
+	  (1) invoke context switch to main thread. and then, main
+	  thread's th.kill resume (1), but not (2). Thus read interrupt
+	  need TIME_QUANTUM_USEC. Then maximum iteration is 30sec/100msec
+	  = 300.
+
+Thu Mar  7 00:14:51 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (rb_update_max_fd): use ATOMIC_CAS because this function
+	  is used from timer thread too.
+
+Wed Mar  6 23:30:21 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread_pthread.c (ARRAY_SIZE): new.
+	* thread_pthread.c (gvl_acquire_common): use low priority
+	  notification for avoiding timer thread interval confusion.
+	  If we use timer_thread_pipe[1], every gvl_yield() request
+	  one more gvl_yield(). It lead to thread starvation.
+	  [Bug #7999] [ruby-core:53095]
+	* thread_pthread.c (rb_reserved_fd_p): adds timer_thread_pipe_low
+	  to reserved fds.
+
+Wed Mar  6 22:36:19 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread_pthread.c (rb_thread_wakeup_timer_thread_fd): add fd
+	  argument and remove hardcoded dependency of timer_thread_pipe[1].
+	* thread_pthread.c (consume_communication_pipe): add fd argument.
+	* thread_pthread.c (close_communication_pipe): ditto.
+
+	* thread_pthread.c (timer_thread_sleep): adjust the above changes.
+
+	* thread_pthread.c (setup_communication_pipe_internal): factor
+	  out pipe initialize logic.
+
+Wed Mar  6 22:56:14 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread_pthread.c (ubf_select): add to small comments why we
+	  need to call rb_thread_wakeup_timer_thread().
+
+Wed Mar  6 21:42:24 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread_pthread.c (rb_thread_create_timer_thread): factor out
+	  creating communication pipe logic into separate function.
+	* thread_pthread.c (setup_communication_pipe): new helper function.
+	* thread_pthread.c (set_nonblock): moves a definition before
+	  setup_communication_pipe.
+
+Sun Mar  3 02:42:29 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread_pthread.c (consume_communication_pipe): retry when
+	  read returned CCP_READ_BUFF_SIZE.
+
+Wed Mar  6 21:31:35 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread_pthread.c (timer_thread_sleep): use poll() instead of
+	  select(). select doesn't work if timer_thread_pipe[0] is
+	  greater than FD_SETSIZE.
+	* thread_pthread.c (USE_SLEEPY_TIMER_THREAD): add a dependency
+	  against poll.
+
+Wed Mar  6 21:00:23 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread_pthread.c (USE_SLEEPY_TIMER_THREAD): use more accurate
+	  ifdef conditions.
+
+Sun Mar  3 02:30:36 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread_pthread.c (set_nonblock): new helper function for set
+	  O_NONBLOCK.
+	* thread_pthread.c (rb_thread_create_timer_thread): set O_NONBLOCK
+	  to timer_thread_pipe[0] too.
+
+Sun Mar 10 09:12:51 2013  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* complex.c: described syntax of string form.
+	* rational.c: ditto.
+
+Sat Mar  9 11:58:39 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* marshal.c (w_extended): check for prepended object.
+	  [ruby-core:53206] [Bug #8043]
+
+Sat Mar  9 08:36:58 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* load.c (features_index_add_single, rb_feature_p): store single index
+	  as Fixnum to reduce the number of arrays for the indexes.  based on
+	  the patch by tmm1 (Aman Gupta) in [ruby-core:53216] [Bug #8048].
+
+Sat Mar  9 00:25:57 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* marshal.c (r_object0): load prepended objects.  treat the class of
+	  extended object in the included modules as prepended singleton
+	  class. [ruby-core:53202] [Bug #8041]
+
+Fri Mar  8 19:44:00 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* man/rake.1, man/ruby.1: Use the Pa macro to make URLs stand out.
+
+Fri Mar  8 13:20:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/pathname/pathname.c (path_f_pathname): rdoc for Pathname()
+
+Fri Mar  8 12:00:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* man/rake.1: Document ENVIRONMENT variables on RAKE(1) manpage
+
+Fri Mar  8 10:44:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/webrick/httpproxy.rb: Fix typos in HTTPProxyServer [Bug #8013]
+	  Patch by Nobuhiro IMAI [ruby-core:53127]
+
+Fri Mar  8 03:16:15 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* class.c (rb_mod_ancestors): Include singleton_class in ancestors
+	  list [Feature #8035]
+
+	* test/ruby/test_module.rb (class): test for above
+
+	* test/ruby/marshaltestlib.rb (module): adapt test
+
+	* NEWS: list change
+
+Thu Mar  7 14:21:37 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_compile_each): pass keyword arguments to zsuper,
+	  with current values.  [ruby-core:53114] [Bug #8008]
+
+Thu Mar  7 12:53:47 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/commands/setup_command.rb:  Install .pem files.
+	* test/rubygems/test_gem_commands_setup_command.rb:  Test for the
+	  above.
+
+	* lib/rubygems/spec_fetcher.rb:  Test HTTPS upgrade with URI::HTTPS,
+	  not URI::HTTP.  Fixes bug in automatic HTTPS upgrade.
+	* test/rubygems/test_gem_spec_fetcher.rb:  Test for the above.
+
+	* lib/rubygems.rb:  Version 2.0.2
+
+	* lib/rubygems/test_utilities.rb:  Ensure scheme and uri class match.
+
+Thu Mar  7 10:39:04 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/rbinstall.rb (gem): Gem.ensure_gem_subdirectories now has mode
+	  option since r39607.  refix of r38870.
+
+Wed Mar  6 13:14:28 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* test/rubygems/test_gem_spec_fetcher.rb:  Removed unused variable.
+
+Wed Mar  6 08:10:15 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* test/rubygems/test_require.rb:  Fix tests when 'a.rb' exists.
+	  [ruby-trunk - Bug #7749]
+
+Wed Mar  6 08:00:59 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems.rb:  Allow specification of directory permissions.
+	  [ruby-trunk - Bug #7713]
+	* test/rubygems/test_gem.rb:  Test for the above.
+
+Wed Mar  6 07:40:21 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/commands/query_command.rb:  Only fetch remote specs when
+	  showing details.  [ruby-trunk - Bug #8019]  RubyGems bug #487
+	* lib/rubygems/remote_fetcher.rb:  ditto.
+	* lib/rubygems/security/policy.rb:  ditto.
+	* test/rubygems/test_gem_commands_query_command.rb:  Test for the
+	  above.
+
+	* lib/rubygems/security.rb:  Make OpenSSL optional for RubyGems.
+	* lib/rubygems/commands/cert_command.rb:  ditto.
+
+	* lib/rubygems/config_file.rb:  Display file with YAML error, not
+	  ~/.gemrc
+
+	* lib/rubygems/remote_fetcher.rb:  Only create gem subdirectories when
+	  installing gems.
+	* lib/rubygems/dependency_resolver.rb:  ditto.
+	* lib/rubygems/test_utilities.rb:  ditto.
+	* test/rubygems/test_gem_commands_fetch_command.rb:  Test for the
+	  above.
+
+	* lib/rubygems/spec_fetcher.rb:  Only try to upgrade
+	  http://rubygems.org to HTTPS
+	* test/rubygems/test_gem_spec_fetcher.rb:  Test for the above.
+
+	* lib/rubygems.rb:  Update win_platform? check for JRuby compatibility.
+
+	* test/rubygems/test_gem_installer.rb:  Update for Ruby 1.9.2
+	  compatibility
+
+Wed Mar  6 01:19:28 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* enumerator.c (enumerator_with_index, lazy_take): use INT2FIX(0)
+	  instead of INT2NUM(0).
+
+	* ext/bigdecimal/bigdecimal.c (BigMath_s_exp): ditto.
+
+	* ext/fiddle/function.c (function_call): ditto.
+
+	* ext/openssl/ossl_x509store.c (ossl_x509store_initialize): ditto.
+
+	* process.c (proc_getsid): ditto.
+
+	* transcode.c (econv_finish): ditto.
+
+Tue Mar  5 21:36:43 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (rb_prepend_module): check redefinition of built-in optimized
+	  methods.  [ruby-dev:47124] [Bug #7983]
+
+	* vm.c (rb_vm_check_redefinition_by_prepend): ditto.
+
+Tue Mar  5 20:29:25 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (mnew): revert r39224.  [ruby-core:53038] [Bug #7988]
+
+Tue Mar  5 20:23:54 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/intern.h (rb_check_arity): make a static inline
+	  function so it can be used as an expression and argc would be
+	  evaluated only once.
+
+Tue Mar  5 12:30:55 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems.rb:  Bump version to 2.0.1 for upcoming bugfix release
+
+	* lib/rubygems/ext/ext_conf_builder.rb:  Restore ruby 1.8 compatibility
+	  for [Bug #7698]
+	* test/rubygems/test_gem_installer.rb:  Ditto.
+
+	* lib/rubygems/package.rb:  Restore ruby 1.8 compatibility.
+
+	* test/rubygems/test_gem_dependency_installer.rb:  Fix warnings
+
+Tue Mar  5 12:24:23 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* enumerator.c (enumerator_with_index):  Restore handling of a nil memo
+	  from r39594.
+
+Tue Mar  5 10:40:22 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/objspace/objspace.c (count_nodes): count also newly added nodes,
+	  and fix key for unknown node.  patch by tmm1 (Aman Gupta) in
+	  [ruby-core:53130] [Bug #8014]
+
+Tue Mar  5 10:20:16 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enumerator.c (enumerator_with_index_i): allow Bignum as offset, to
+	  get rid of conversion exception and integer overflow.
+	  [ruby-dev:47131] [Bug #8010]
+
+	* numeric.c (rb_int_succ, rb_int_pred): shortcut optimization for
+	  Bignum.
+
+Tue Mar  5 10:02:48 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/rubygems/ext/ext_conf_builder.rb (Gem::Ext::ExtConfBuilder.build):
+	  clear DESTDIR so RUBYARCHDIR and RUBYLIBDIR are not be overridden.
+	  [Bug #7698]
+
+Mon Mar  4 15:33:40 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/rubygems/ext/ext_conf_builder.rb (Gem::Ext::ExtConfBuilder.build):
+	  fix for unusual cases again.  install to a temporary directory once
+	  and move installed files to the destination directory, if it is same
+	  as the current directory.  [Bug #7698]
+
+Mon Mar  4 14:13:36 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* Makefile.in (miniruby, ruby): move MAINLIBC because linker arguments
+	  must appear after object files with newer versions of gcc.  patch by
+	  tmm1 (Aman Gupta) in [ruby-core:53121] [Bug #8009]
+
+Mon Mar  4 10:23:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* encoding.c: Typo in Encoding overview by Tom Wardrop [GH fixes #255]
+
+Sun Mar  3 12:35:08 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#libpath_env): set runtime library path for
+	  the case rpath is disabled.
+
+Sun Mar  3 12:17:47 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/rubygems/ext/ext_conf_builder.rb
+	  (Gem::Ext::ExtConfBuilder.hack_for_obsolete_style_gems): remove
+	  circular dependencies in install-so too.  [ruby-core:52882]
+	  [Bug #7698]
+
+Sun Mar  3 07:33:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/socket/tcpserver.c: Grammar for TCPServer.new from r39554
+
+Sun Mar  3 01:17:20 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/rubygems/ext/ext_conf_builder.rb
+	  (Gem::Ext::ExtConfBuilder.hack_for_obsolete_style_gems): remove
+	  circular dependencies for old style gems which locate extconf.rb on
+	  the toplevel.  [ruby-core:53059] [ruby-trunk - Bug #7698]
+
+	* lib/rubygems/ext/ext_conf_builder.rb (Gem::Ext::ExtConfBuilder.build):
+	  use RUBYOPT instead of -r option, and revert some tests.  [Bug #7698]
+
+	* lib/rubygems/ext/ext_conf_builder.rb (Gem::Ext::ExtConfBuilder.build):
+	  revert use of temporary directory for build, to work some buggy
+	  extconf.rb which cannot build outside the source directory.
+	  [ruby-core:53056] [Bug #7698]
+
+Sun Mar  3 00:04:20 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enc/depend (CPPFLAGS), lib/mkmf.rb (MakeMakefile#create_makefile):
+	  define RUBY_EXPORT for static-linked-ext mswin.  [Bug #7960]
+
+Sat Mar  2 22:49:47 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/Makefile.sub (ENCOBJS, EXTOBJS, config.h): definitions for
+	  static-linked-ext.  [Bug #7960]
+
+Sat Mar  2 17:34:19 2013  Tanaka Akira  <akr@fsij.org>
+
+	* lib/webrick/utils.rb: use Socket.tcp_server_sockets to create server
+	  sockets.
+	  fix [Bug #7100] https://bugs.ruby-lang.org/issues/7100
+	  reported by sho-h (Sho Hashimoto).
+
+Sat Mar  2 02:45:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* array.c: typo in comment patch by Nami-Doc [Github fixes #253]
+
+Sat Mar  2 01:33:17 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* Merge Onigmo 0fe387da2fee089254f6b04990541c731a26757f
+	  v5.13.3 [Bug#7972] [Bug#7974]
+
+Fri Mar  1 11:09:06 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/fileutils.rb:  Revert r34669 which altered the way
+	  metaprogramming in FileUtils occurred.  [ruby-trunk - Bug #7958]
+
+	* test/fileutils/visibility_tests.rb:  Refactored tests of FileUtils
+	  options modules to expose bug found in #7958
+	* test/fileutils/test_dryrun.rb:  ditto.
+	* test/fileutils/test_nowrite.rb:  ditto.
+	* test/fileutils/test_verbose.rb:  ditto.
+
+Fri Mar  1 09:18:00 2013  Zachary Scott <zachary@zacharyscott.net>
+
+	* lib/psych.rb: specify in rdoc what object is returned in parser
+	  By Adam Stankiewicz [Github tenderlove/psych#133]
+
+Fri Mar  1 07:21:41 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/ext/builder.rb:  Fix incompatibilities when installing
+	  extensions.  Patch by Nobu.
+	  [ruby-trunk - Bug #7698] [ruby-trunk - Bug #7971]
+	* lib/rubygems/ext/ext_conf_builder.rb:  ditto.
+	* lib/rubygems/installer.rb:  ditto.
+	* test/rubygems/test_gem_ext_ext_conf_builder.rb:  Test for the above.
+	* test/rubygems/test_gem_installer.rb:  ditto.
+
+	* lib/rubygems/commands/sources_command.rb:  Prefer HTTPS over HTTP.
+	* lib/rubygems/defaults.rb:  ditto
+	* lib/rubygems/dependency_resolver.rb:  Ditto.
+	* lib/rubygems/source.rb:  ditto.
+	* lib/rubygems/spec_fetcher.rb:  ditto.
+	* lib/rubygems/specification.rb:  ditto.
+	* lib/rubygems/test_utilities.rb:  ditto.
+	* test/rubygems/test_gem.rb:  Test for the above.
+	* test/rubygems/test_gem_commands_sources_command.rb:  ditto.
+	* test/rubygems/test_gem_dependency_resolver_api_set.rb:  ditto.
+	* test/rubygems/test_gem_remote_fetcher.rb:  ditto.
+	* test/rubygems/test_gem_source.rb:  ditto.
+	* test/rubygems/test_gem_spec_fetcher.rb:  ditto.
+
+Fri Mar 1 03:25:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/psych/lib/psych.rb: rdoc for Psych overview by Adam Stankiewicz
+	  [Github tenderlove/psych#134]
+
+Thu Feb 28 22:57:48 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (iseq_compile_each): remove redundant trace(line)
+	  instruction. for example, at the following script
+	    def m()
+	      p:xyzzy
+	      1
+	      2
+	    end
+	  compiler ignores `1' because there is no effect. However,
+	  `trace(line)' instruction remains in bytecode.
+	  This modification removes such redundant trace(line) instruction.
+
+	* test/ruby/test_iseq.rb: add a test.
+
+Thu Feb 28 22:23:27 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/raddrinfo.c (inspect_sockaddr): don't show that Unix
+	  domain socket filename is bigger than sizeof(sun_path).
+	  This limit is not rigid on some platforms such as Darwin and SunOS.
+
+Thu Feb 28 21:33:01 2013  WATANABE Hirofumi  <eban@ruby-lang.org>
+
+	* configure.in(AC_DISABLE_OPTION_CHECKING): avoid warning "WARNING:
+	  Unrecognized options: --with-PACKAGE".
+
+Thu Feb 28 20:22:04 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* iseq.c (iseq_data_to_ary): fix condition.
+	  r34303 introduces a bug to avoid all line information from
+	  a result of ISeq#to_a. This is a regression problem from 2.0.0p0.
+
+	* test/ruby/test_iseq.rb: add a test of lines after ISeq#to_a.
+
+Thu Feb 28 08:20:33 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/available_set.rb:  Undent for style
+
+	* lib/rubygems/dependency_installer.rb:  Pick latest prerelease gem to
+	  install.  Fixes RubyGems bug #468.
+	* test/rubygems/test_gem_dependency_installer.rb:  Test for the above.
+
+	* lib/rubygems/dependency_installer.rb:  Don't display "Done installing
+	  documentation" if documentation will not be installed.
+	* lib/rubygems/rdoc.rb:  ditto
+
+	* lib/rubygems/dependency_list.rb:  Use Array#concat for Ruby 1.x
+	  performance.
+
+	* lib/rubygems/installer.rb:  Use formatted program name when comparing
+	  executables.  RubyGems pull request #471
+	* test/rubygems/test_gem_installer.rb:  Test for the above.
+
+	* lib/rubygems/package.rb:  Use more explicit feature check to work
+	  around JRuby bug #552
+
+	* lib/rubygems/ssl_certs/GeoTrust_Global_CA.pem:  Added GeoTrust root
+	  certificate.
+
+	* test/rubygems/test_gem_source_list.rb:  Use "example" instead of real
+	  hostname
+
+Thu Feb 28 05:57:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* thread.c: rdoc formatting for Thread, ThreadGroup, and ThreadError
+
+Thu Feb 28 02:42:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* vm.c: Typo in overview for example of Thread#status returning false
+	  Reported by Lee Jarvis
+
+Wed Feb 27 22:54:27 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/rubysocket.h (union_sockaddr): make it longer for SunOS
+	  and Darwin.
+
+Wed Feb 27 21:14:34 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/security.rb (REXML::Security): create.
+	* lib/rexml/rexml.rb: move entity_expansion_limit and
+	  entity_expansion_text_limit accessors to ...
+	* lib/rexml/security.rb: ... here.
+	* lib/rexml/document.rb: use REXML::Security.
+	* lib/rexml/text.rb: use REXML::Security.
+	* test/rexml/test_document.rb: use REXML::Security.
+
+Wed Feb 27 19:53:32 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* vm.c (Thread): fix typos in overview
+
+Wed Feb 27 13:21:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* vm.c (Thread): Typo in overview, swap setting and getting
+
+Wed Feb 27 13:02:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* vm.c (Thread): Documentation overview of Thread class
+
+Wed Feb 27 12:57:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* thread.c (rb_thread_wakeup): rdoc formatting
+
+Wed Feb 27 12:53:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* thread.c (rb_thread_group): rdoc formatting
+
+Wed Feb 27 12:33:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/ostruct.rb: Typo in OpenStruct overview [Github Fixes #251]
+	  Patch by Chun-wei Kuo
+
+Wed Feb 27 12:13:32 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vm_exec.h (END_INSN): llvm-gcc may optimize out reg_cfp and cause
+	  Stack/cfp consistency error when the instruction doesn't use reg_cfp.
+	  Usually instructions use PUSH() but for example trace doesn't.
+	  This hack cause speed down but you shouldn't use llvm-gcc, use clang.
+	  [Bug #7938]
+
+Wed Feb 27 10:23:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* thread.c (thread_raise_m): rdoc formatting
+
+Tue Feb 26 23:32:44 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/document.rb: move entity_expansion_limit accessor to ...
+	* lib/rexml/rexml.rb: ... here for consistency.
+	* lib/rexml/document.rb (REXML::Document.entity_expansion_limit):
+	  deprecated.
+	* lib/rexml/document.rb (REXML::Document.entity_expansion_limit=):
+	  deprecated.
+
+Tue Feb 26 23:26:13 2013  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/document.rb: move entity_expansion_text_limit accessor to ...
+	* lib/rexml/rexml.rb: ... here to make rexml/text independent from
+	  REXML::Document. It causes circular require.
+	* lib/rexml/document.rb (REXML::Document.entity_expansion_text_limit):
+	  deprecated.
+	* lib/rexml/document.rb (REXML::Document.entity_expansion_text_limit=):
+	  deprecated.
+	* lib/rexml/text.rb: add missing require "rexml/rexml" for
+	  REXML.entity_expansion_text_limit.
+	  Reported by Robert Ulejczyk. Thanks!!! [ruby-core:52895] [Bug #7961]
+
+Tue Feb 26 15:12:11 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/mkconfig.rb: reconstruct comma separated list values.  a
+	  command line to Windows batch file is split not only by spaces
+	  and equal signs but also by commas and semicolons.
+
+Tue Feb 26 15:04:19 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (unexpand_shvar): get rid of non-portable shell
+	  behavior on OpenBSD, so no extra quotes.  [Bug #7959]
+
+Tue Feb 26 10:24:49 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (IS_LABEL_POSSIBLE): allow labels for keyword arguments just
+	  after method definition without a parenthesis.  [ruby-core:52820]
+	  [Bug #7942]
+
+Tue Feb 26 04:50:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* error.c: clarify reason for sleep in SignalException example
+
+Tue Feb 26 03:47:00 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* error.c: clarify a document of SignalException. Process.kill()
+	  doesn't have any guarantee when signal will be delivered.
+	  [Bug #7951] [ruby-core:52864]
+
+Mon Feb 25 23:51:04 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/version.h: bump RUBY_API_VERSION same as RUBY_VERSION.
+
+Mon Feb 25 21:03:34 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (str_byte_substr): don't set coderange if it's not known.
+	  [Bug #7954] [ruby-dev:47108]
+
+Mon Feb 25 16:47:02 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (realclean-local): miniprelude.c is made by srcs, so it
+	  should not removed by distclean but by realclean.  [Bug #6807]
+
+Mon Feb 25 16:30:30 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/config_file.rb:  Lazily load .gem/credentials to only
+	  check permissions when necessary.  RubyGems bug #465
+	* test/rubygems/test_gem_config_file.rb:  Test for the above.
+
+	* test/rubygems/test_gem_commands_push_command.rb:  Remove duplicated
+	  test.
+
+Mon Feb 25 15:47:18 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enc/depend (ARFLAGS): VisualC++ linker does not allow spaces between
+	  output option and the output file name.  [Bug #7950]
+
+	* enc/depend (RANLIB): set default command to do nothing, or make the
+	  entire line a label on Windows.
+
+Mon Feb 25 14:41:07 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#init_mkmf): default libdirname to libdir.
+
+	* tool/rbinstall.rb: ditto.
+
+Mon Feb 25 13:12:39 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (setup): find Setup file from target_os 1. by
+	  suffix (e.g. Setup.nacl, Setup.atheos), 2. by "platform"
+	  option (e.g. Setup.nt, Setup.emx), and 3. default Setup.  And
+	  Setup.dj had been removed.
+
+Mon Feb 25 12:48:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* thread.c: Document Thread::new, clean up ::fork and mention calling
+	  super if subclassing Thread
+
+Mon Feb 25 12:38:50 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: don't test ss_family and ss_len member of
+	  struct sockaddr_storage.  They are not used now except SunOS
+	  specific code.
+
+Mon Feb 25 11:03:38 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* configure.in (unexpand_shvar): Use the numeric comparison
+	  operator instead of '==' which is a ksh extension. [Bug #7941]
+
+Mon Feb 25 02:37:56 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket: define and use union_sockaddr instead of struct
+	  sockaddr_storage for less casts.
+
+	* ext/socket/rubysocket.h (union_sockaddr): defined.
+
+	* ext/socket/socket.c (sock_accept): use union_sockaddr.
+	  (sock_accept_nonblock): ditto.
+	  (sock_sysaccept): ditto.
+	  (sock_s_getnameinfo): ditto.
+
+	* ext/socket/basicsocket.c (bsock_getsockname): ditto.
+	  (bsock_getpeername): ditto.
+	  (bsock_local_address): ditto.
+	  (bsock_remote_address): ditto.
+
+	* ext/socket/ancdata.c (bsock_recvmsg_internal): ditto.
+
+	* ext/socket/init.c (recvfrom_arg): ditto.
+	  (recvfrom_blocking): ditto.
+	  (rsock_s_recvfrom): ditto.
+	  (rsock_s_recvfrom_nonblock): ditto.
+	  (rsock_getfamily): ditto.
+
+	* ext/socket/raddrinfo.c (rb_addrinfo_t): ditto.
+	  (ai_get_afamily): ditto.
+	  (inspect_sockaddr): ditto.
+	  (addrinfo_mdump): ditto.
+	  (addrinfo_mload): ditto.
+	  (addrinfo_getnameinfo): ditto.
+	  (addrinfo_ip_port): ditto.
+	  (extract_in_addr): ditto.
+	  (addrinfo_ipv6_to_ipv4): ditto.
+	  (addrinfo_unix_path): ditto.
+
+	* ext/socket/tcpserver.c (tcp_accept): ditto.
+	  (tcp_accept_nonblock): ditto.
+	  (tcp_sysaccept): ditto.
+
+	* ext/socket/ipsocket.c (ip_addr): ditto.
+	  (ip_peeraddr): ditto.
+	  (ip_s_getaddress): ditto.
+
+Sun Feb 24 21:15:05 2013  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c: [ruby-core:52303]
+
+Sun Feb 24 15:33:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* random.c (rb_random_ulong_limited): limit is inclusive, but generic
+	  rand method should return a number less than it, so increase for the
+	  difference.  [ruby-core:52779] [Bug #7935]
+
+Sun Feb 24 15:32:36 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* random.c (rb_random_ulong_limited): limit is inclusive, but generic
+	  rand method should return a number less than it, so increase for the
+	  difference.  [ruby-core:52779] [Bug #7935]
+
+Sun Feb 24 15:14:43 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/http.rb:  Removed duplicate Accept-Encoding in Net::HTTP#get.
+	  [ruby-trunk - Bug #7924]
+	* test/net/http/test_http.rb:  Test for the above.
+
+Wed Feb 20 14:28:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* thread.c: Document ThreadGroup::Default
+
+Wed Feb 20 14:23:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* thread.c: Grammar for #backtrace_locations and ::handle_interrupt
+
+Sun Feb 24 13:35:57 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_call_method): block level control frame does not
+	  have method entry, so obtain the method entry from method top-level
+	  control frame to be compared with refined method entry.
+	  [ruby-core:52750] [Bug #7925]
+
+Wed Feb 20 13:23:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* object.c: Document methods receiving string and convert to symbol
+	  Patch by Stefan Rusterholz
+	* vm_eval.c: ditto
+	* vm_method.c: ditto
+
+Wed Feb 20 07:20:56 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* signal.c (sigsegv): suppress unused result warning. Because
+	  write(2) is marked __warn_unused_result__ on Linux glibc.
+
+Sun Feb 24 07:50:53 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_set_arguments): no keyword check if any keyword rest
+	  argument exists, even unnamed.  [ruby-core:52744] [Bug #7922]
+
+Sat Feb 23 16:51:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* thread.c: Documentation for Thread#backtrace_locations
+
+Sat Feb 23 16:05:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* vm.c: Typo in ObjectSpace::WeakMap overview
+
+Sat Feb 23 16:00:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* thread.c: Improved rdoc for ::handle_interrupt, ::pending_interrupt?
+	  and #pending_interrupt?
+
+Sat Feb 23 12:26:43 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* misc/ruby-electric.el (ruby-electric-curlies)
+	  (ruby-electric-matching-char, ruby-electric-bar): Avoid electric
+	  insertion when there is a prefix argument.
+
+	* misc/ruby-electric.el (ruby-electric-insert)
+	  (ruby-electric-cua-replace-region-p)
+	  (ruby-electric-cua-replace-region): Avoid electric insertion and
+	  fall back when cua-mode is enabled and a region is active.
+
+Sat Feb 23 12:35:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* array.c: Document #<=> return values and formatting
+	* bignum.c: ditto
+	* file.c: ditto
+	* object.c: ditto
+	* numeric.c: ditto
+	* rational.c: ditto
+	* string.c: ditto
+	* time.c: ditto
+
+Sat Feb 23 10:50:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* array.c (rb_ary_diff, rb_ary_and, rb_ary_or): Document return order
+	  [RubySpec #7803]
+
+Sat Feb 23 10:17:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* object.c (rb_obj_comp): Documenting Object#<=> return values
+	  Patch by Stefan Rusterholz
+
+Sat Feb 23 09:48:41 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (file_s_fnmatch, fnmatch_brace): encoding-incompatible pattern
+	  and string do not match, instead of exception.  [ruby-dev:47069]
+	  [Bug #7911]
+
+Sat Feb 23 08:57:46 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* doc/NEWS-*: Update NEWS from their respective branches
+
+Sat Feb 23 08:14:43 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* NEWS: many additions for Ruby 2.0.0
+
+	* object.c: Add doc for Module.prepended
+
+Sat Feb 23 07:52:53 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* template/ruby.pc.in: reorder library flags which may refer library
+	  names.  [Bug #7913]
+
+Fri Feb 22 23:46:20 2013  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* lib/rexml/document.rb (REXML::Document.entity_expansion_text_limit):
+	  fix a typo in comment in r39384.
+
+Fri Feb 22 18:31:46 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* lib/rexml/document.rb (REXML::Document.entity_expansion_text_limit):
+	  new attribute to read/write entity expansion text limit.  the default
+	  limit is 10Kb.
+
+	* lib/rexml/text.rb (REXML::Text.unnormalize): check above attribute.
+
+Fri Feb 22 17:36:23 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* test/test_rbconfig.rb (TestRbConfig): fix r39372.
+	  It must see RbConfig::CONFIG instead of CONFIG.
+
+Fri Feb 22 14:55:41 2013  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* signal.c (ruby_abort): fix typo in r39354 [Bug #5014]
+
+Fri Feb 22 12:46:41 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* random.c (rb_random_ulong_limited): fix error message for negative
+	  value.  [ruby-dev:47061] [Bug #7903]
+
+Fri Feb 22 11:36:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/test_rbconfig.rb (TestRbConfig): skip user defined values by
+	  configuration options.  [Bug #7902]
+
+Fri Feb 22 11:33:42 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#init_mkmf): adjust default library path
+	  for multiarch.  [Bug #7874]
+
+Fri Feb 22 11:10:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* enum.c (Enumerable#chunk: Improved examples, grammar, and formatting
+	  Patch by Dan Bernier and Rich Bruchal of newhaven.rb
+	  [Github documenting-ruby/ruby#8]
+
+Fri Feb 22 11:00:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* numeric.c: Examples and formatting for Numeric and Float
+	  Based on a patch by Zach Morek and Oren K of newhaven.rb
+	  [Github documenting-ruby/ruby#5]
+
+Fri Feb 22 07:04:41 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/installer.rb (build_extensions):  Create extension
+	  install destination before building extension.  Patch by Kenta Murata.
+	  [ruby-trunk - Bug #7897]
+	* test/rubygems/test_gem_installer.rb:  Test for the above.
+
+Fri Feb 22 06:30:57 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/globals.rdoc:  Document what setting $DEBUG does.
+
+	* doc/globals.rdoc:  Added pointer to $-d for full documentation.
+
+Fri Feb 22 06:27:07 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/globals.rdoc:  Document what setting $VERBOSE does.  [Bug #7899]
+
+	* doc/globals.rdoc:  Added pointer to $-w and $-v for full
+	  documentation.
+
+Fri Feb 22 02:33:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/abbrev.rb: Add words parameter to Abbrev::abbrev
+	  Patch by Devin Weaver [Github documenting-ruby/ruby#7]
+
+Thu Feb 21 17:28:14 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/merger.rb: add interaction when only ChangeLog is modified.
+
+Thu Feb 21 16:34:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* signal.c (check_stack_overflow): extract duplicated code and get rid
+	  of declaration-after-statement.  [Bug #5014]
+
+Thu Feb 21 14:14:13 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* signal.c (sigsegv): avoid to use async signal unsafe functions
+	  when nested sigsegv is happen.
+	  [Bug #5014] [ruby-dev:44082]
+
+Thu Feb 21 13:47:59 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* file.c (rb_group_member): added an error check. SUS says,
+	  getgroups(small_value) may return EINVAL.
+
+Thu Feb 21 13:37:07 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* process.c (RB_MAX_GROUPS): moved to
+	* internal.h (RB_MAX_GROUPS): here.
+
+	* file.c (rb_group_member): use RB_MAX_GROUPS instead of
+	  RUBY_GROUP_MAX. They are the same.
+
+Thu Feb 21 13:15:40 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* file.c (access_internal): removed.
+	* file.c (rb_file_readable_real): use access() instead of
+	  access_internal().
+	* file.c (rb_file_writable_real): ditto.
+	* file.c (rb_file_executable_real): ditto.
+
+Thu Feb 21 13:04:59 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* file.c (eaccess): use access() when not using setuid nor setgid.
+	  This is minor optimization.
+
+Thu Feb 21 12:56:19 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* file.c (rb_group_member): get rid of NGROUPS dependency.
+	  [Bug #7886] [ruby-core:52537]
+
+Thu Feb 21 12:45:03 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ruby.c (ruby_init_loadpath_safe): try two levels upper for stripping
+	  libdir name.  [Bug #7874]
+
+	* configure.in (libdir_basename): expand with multiarch in configure,
+	  not to defer the expansion till ruby.pc.in and mkmf.rb.  [Bug #7874]
+
+	* configure.in (libdir_basename): also -rpath and -install_name flags
+	  are affected when libruby directory changes.  [Bug #7874]
+
+Wed Feb 20 19:27:02 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (HAVE_RB_SCAN_ARGS_OPTIONAL_HASH): for
+	  rb_scan_args() optional hash feature.  [Bug #7861]
+
+Wed Feb 20 18:02:26 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (target_os): do not strip -gnu suffix on Linux if
+	  --target is given explicitly.  [Bug #7874]
+
+	* configure.in (libdirname): adjust library path name which libruby
+	  files will be installed.  [Bug #7874]
+
+	* tool/rbinstall.rb (libdir): ditto.
+
+Wed Feb 20 13:37:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/pty/pty.c: Documentation for the PTY module
+
+Wed Feb 20 12:18:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* object.c: Document Data class [Bug #7890] [ruby-core:52549]
+	  Patch by Matthew Mongeau
+
+Wed Feb 20 11:50:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/mutex_m.rb: Add rdoc for Mutex_m module
+
+Wed Feb 20 09:34:43 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/commands/update_command.rb:  Create the installer after
+	  options are processed.  [ruby-trunk - Bug #7779]
+	* test/rubygems/test_gem_commands_update_command.rb:  Test for the
+	  above.
+
+Wed Feb 20 07:51:19 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/installer.rb:  Use gsub instead of gsub! to avoid
+	  altering @bin_dir.  Fixes tests on windows.  [ruby-trunk - Bug #7885]
+
+Tue Feb 19 20:50:00 2013  Kenta MURATA  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.gemspec: bump to 1.2.0.
+	  [ruby-core:51777] [Bug #7761]
+
+Tue Feb 19 13:07:25 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* ext/syslog/syslog.c (Init_syslog): Define inspect as a singleton
+	  method and remove it as an instance method. [Bug #6502]
+
+Tue Feb 19 12:30:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* object.c: rdoc formatting for Kernel#Array()
+	* array.c: Add rdoc for Array() method to Creating Arrays section
+
+Tue Feb 19 10:35:52 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/openssl/ossl.c (class OpenSSL):  Use only inner parenthesis in
+	  create_extension examples.
+
+Tue Feb 19 10:27:12 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/openssl/ossl.c (class OpenSSL):  Fixed ExtensionFactory example.
+	  Patch by Richard Bradley.  [ruby-trunk - Bug #7551]
+
+Tue Feb 19 08:32:11 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_eval.c (vm_call0_body): check interrupts after method dispatch
+	  from C methods. [Bug #7878]
+
+Tue Feb 19 08:14:40 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/installer.rb:  Fixed placement of executables with
+	  --user-install.  [ruby-trunk - Bug #7779]
+	* test/rubygems/test_gem_installer.rb:  Test for above.
+
+Tue Feb 19 06:04:06 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vm_dump: FreeBSD ports' libexecinfo's backtrace(3) can't trace
+	  beyond signal trampoline, and as described in r38342 it can't
+	  trace on -O because it see stack frame pointers.
+	  libunwind unw_backtrace see dwarf information in the binary
+	  and it works with -O (without frame pointers).
+
+	* configure.in: remove r38342's hack and check libunwind.
+
+Tue Feb 19 04:26:29 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: check whether backtrace(3) works well or not.
+
+	* vm_dump.c: set HAVE_BACKTRACE 0 if BROKEN_BACKTRACE.
+
+Mon Feb 18 16:30:18 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/ipaddr.rb (IPAddr#in6_addr): Fix a typo with the closing
+	  parenthesis.
+
+Mon Feb 18 12:32:24 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/ipaddr.rb (IPAddr#in6_addr): Fix the parser so that it can
+	  recognize IPv6 addresses with only one edge 16-bit piece
+	  compressed, like [::2:3:4:5:6:7:8] or [1:2:3:4:5:6:7::].
+	  [Bug #7477]
+
+Mon Feb 18 10:09:54 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (unexpand_shvar): regularize a shell variable by
+	  unexpanding shell variables in it.
+
+Sun Feb 17 20:55:44 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compar.c (rb_invcmp): compare by inversed comparison, with preventing
+	  from infinite recursion.  [ruby-core:52305] [Bug #7870]
+
+	* string.c (rb_str_cmp_m), time.c (time_cmp): get rid of infinite
+	  recursion.
+
+Sun Feb 17 17:23:22 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb: remove extra topdir in VPATH, which was in
+	  win32/Makefile.sub for some reason and moved from there.
+	  [ruby-dev:46998] [Bug #7864]
+
+Sun Feb 17 01:19:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* ext/psych/lib/psych/y.rb: Document Kernel#y by Adam Stankiewicz
+	  [Github tenderlove/psych#127]
+
+Sun Feb 17 00:52:14 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/mkconfig.rb: remove prefix from rubyarchdir.
+	  r39267 expands variables, it changes expansion timing,
+	  breaks RbConfig::CONFIG["includedir"] and building
+	  extension libraries with installed ruby.
+
+Sat Feb 16 20:51:17 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm.c (ENV_IN_HEAP_P): fix off-by-one error.
+
+Sat Feb 16 20:47:16 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* configure.in (LIBRUBY_DLDFLAGS): Fix a bug where --with-opt-dir
+	  options given were not reflected to LIBRUBY_DLDFLAGS on many
+	  platforms including Linux and other GNU-based systems, NetBSD,
+	  AIX and BeOS.
+
+Sat Feb 16 20:43:20 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/ancdata.c (rsock_recvmsg): ignore truncated part of
+	  socket address returned from recvmsg().
+
+	* ext/socket/init.c (recvfrom_blocking): ignore truncated part of
+	  socket address returned from recvfrom().
+	  (rsock_s_recvfrom_nonblock): ditto.
+
+Sat Feb 16 20:05:26 2013  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* test/ruby/test_thread.rb: fixed typo
+	  patched by Hiroki Matsue via https://github.com/ruby/ruby/pull/248
+
+Sat Feb 16 16:08:35 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (rb_thread_mark): mark a working Proc of bmethod
+	  (a method defined by define_method) even if the method was removed.
+	  We could not trace working Proc object which represents the body
+	  of bmethod if the method was removed (alias/undef/overridden).
+	  Simply, it was mark miss.
+	  This patch by Kazuki Tsujimoto. [Bug #7825]
+
+	  NOTE: We can brush up this marking because we do not need to mark
+	  `me' on each living control frame. We need to mark `me's
+	  only if `me' was free'ed. This is future work after Ruby 2.0.0.
+
+	* test/ruby/test_method.rb: add a test.
+
+Sat Feb 16 15:45:56 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* proc.c (rb_binding_new_with_cfp): create binding object even if
+	  the frame is IFUNC. But return a ruby-level binding to keep
+	  compatibility.
+	  This patch fix degradation introduced from r39067.
+	  [Bug #7774] [ruby-dev:46960]
+
+	* test/ruby/test_settracefunc.rb: add a test.
+
+Sat Feb 16 13:40:13 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (shvar_to_cpp): do not substitute exec_prefix itself
+	  with RUBY_EXEC_PREFIX, which cause recursive definition.
+	  [ruby-core:52296] [Bug #7860]
+
+Sat Feb 16 13:13:04 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/io/console/io-console.gemspec: bump to 0.4.2.  now explicitly
+	  requires ruby 1.9.3 or later.  [Bug #7847]
+
+	* ext/io/console/console.c (console_dev): compatibility with ruby 1.8.
+
+	* ext/io/console/console.c (rawmode_opt, console_dev): compatibility
+	  with ruby 1.9.  [ruby-core:52220] [Bug #7847]
+
+Sat Feb 16 12:45:50 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: unexpand arch sitearch and exec_prefix values, so
+	  directly specified bindir, libdir, rubyprefix, etc can be properly
+	  substituted.  [ruby-core:52296] [Bug #7860]
+
+Sat Feb 16 12:15:20 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* parse.y: add dtrace probe for symbol create.
+
+	* probes.d: ditto
+
+Sat Feb 16 09:27:37 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: don't test sys/feature_tests.h which is not
+	  used now.
+	  It was included in r7901 as "bug of gcc 3.0 on Solaris 8 ?".
+
+Sat Feb 16 09:24:37 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: reorder header tests to consider inclusion
+	  order in rubysocket.h.
+
+Sat Feb 16 08:42:58 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in, ext/socket/extconf.rb: test netinet/in_systm.h in
+	  ext/socket/extconf.rb instead of configure.in.
+
+	  Originally, netinet/in_systm.h is included for NextStep, OpenStep,
+	  and Rhapsody.  [ruby-core:1596]
+
+Sat Feb 16 07:55:40 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: don't test xti.h here.
+
+	* ext/socket/extconf.rb: test xti.h here.
+
+	  Originally, xti.h is included for IRIX [ruby-core:14447].
+
+Sat Feb 16 07:16:49 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: test struct sockaddr_un and its member,
+	  sun_len.
+
+	* ext/socket/sockport.h (INIT_SOCKADDR_UN): new macro defined.
+
+	* ext/socket/socket.c (sock_s_pack_sockaddr_un): use INIT_SOCKADDR_UN.
+
+	* ext/socket/unixsocket.c (rsock_init_unixsock): ditto.
+
+	* ext/socket/raddrinfo.c (init_unix_addrinfo): ditto.
+	  (addrinfo_mload): ditto.
+
+Sat Feb 16 07:05:59 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/sockport.h (INIT_SOCKADDR_IN): don't need family
+	  argument.  it is always AF_INET.
+
+	* ext/socket/raddrinfo.c (make_inetaddr): follow INIT_SOCKADDR_IN
+	  change.
+	  (addrinfo_ipv6_to_ipv4): ditto.
+
+Sat Feb 16 04:21:07 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/socket/extconf.rb: workaround for mswin/mingw build problem.
+	  sendmsg emulation in win32/win32.c is not enough.
+
+Sat Feb 16 00:19:20 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: use all all tested available headers for
+	  have_func.
+
+Fri Feb 15 22:21:37 2013  Akinori MUSHA  <knu@iDaemons.org>
+
+	* configure.in: Fix a bug introduced in r38342 that the cflagspat
+	  substitution is messed up by the way CFLAGS and optflags are
+	  modified, which affected FreeBSD and NetBSD/amd64 when
+	  configured to use libexecinfo.  This bug resulted in CFLAGS and
+	  CXXFLAGS in RbConfig::CONFIG having warnflags expanded in them,
+	  forcing third-party C/C++ extensions to follow what warnflags
+	  demands, like ANSI/ISO-C90 conformance.  ref [Bug #7101]
+
+Fri Feb 15 20:29:11 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/sockport.h (SET_SIN_LEN): defined for strict-aliasing
+	  rule.
+	  (INIT_SOCKADDR_IN): ditto.
+
+	* ext/socket/raddrinfo.c (make_inetaddr): use INIT_SOCKADDR_IN.
+	  (addrinfo_ipv6_to_ipv4): ditto.
+
+Fri Feb 15 18:24:48 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#try_run): bail out explicitly if cross
+	  compiling, because it cannot work of course.
+
+Fri Feb 15 12:34:58 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: test struct sockaddr_storage directly.
+
+	* ext/socket/rubysocket.h: use HAVE_TYPE_STRUCT_SOCKADDR_STORAGE.
+
+Fri Feb 15 12:26:13 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/getaddrinfo.c (GET_AI): don't cast 1st argument for
+	  INIT_SOCKADDR.
+
+Fri Feb 15 08:12:11 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/sockport.h (SET_SS_LEN): removed.
+	  (SET_SIN_LEN): removed.
+	  (INIT_SOCKADDR): new macro.
+
+	* ext/socket/ancdata.c (extract_ipv6_pktinfo): use INIT_SOCKADDR.
+
+	* ext/socket/raddrinfo.c (make_inetaddr): use INIT_SOCKADDR.
+	  (addrinfo_ipv6_to_ipv4): ditto.
+
+	* ext/socket/getaddrinfo.c (GET_AI): use INIT_SOCKADDR.
+
+Fri Feb 15 07:49:27 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc.rb:  Update to release version of 4.0.0
+
+	* lib/rubygems.rb:  Update to release version of 2.0.0
+
+Fri Feb 15 07:07:27 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/sockport.h (SA_LEN): removed because unused now.
+	  (SS_LEN): ditto.
+	  (SIN_LEN): ditto.
+
+Thu Feb 14 10:45:31 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/ruby/test_process.rb (test_setsid): Added a workaround for
+	  MacOS X. Patch by nagachika. [Bug #7826] [ruby-core:52126]
+
+Fri Feb 15 00:15:31 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/sockport.h (VALIDATE_SOCKLEN): new macro to validate
+	  sa_len member of 4.4BSD socket address.
+
+	* ext/socket/getnameinfo.c (getnameinfo): use VALIDATE_SOCKLEN,
+	  instead of SA_LEN.
+
+	* ext/socket/socket.c (sock_s_getnameinfo): use VALIDATE_SOCKLEN
+	  instead of SS_LEN.
+
+Thu Feb 14 22:25:54 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/socket.c (sockaddr_len): extracted from sockaddr_obj.
+	  (sockaddr_obj): add an argument to length of socket address.
+	  (socket_s_ip_address_list): call sockaddr_obj with actual socket
+	  address length if given, use sockaddr_len otherwise.
+
+Thu Feb 14 20:11:23 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket: always operate length of socket address companion with
+	  socket address.
+
+	* ext/socket/rubysocket.h (rsock_make_ipaddr): add an argument for
+	  socket address length.
+	  (rsock_ipaddr): ditto.
+
+	* ext/socket/ipsocket.c (ip_addr): pass length to rsock_ipaddr.
+	  (ip_peeraddr): ditto.
+	  (ip_s_getaddress): pass length to rsock_make_ipaddr.
+
+	* ext/socket/socket.c (make_addrinfo): pass length to rsock_ipaddr.
+	  (sock_s_getnameinfo): pass actual address length to rb_getnameinfo.
+	  (sock_s_unpack_sockaddr_in): pass length to rsock_make_ipaddr.
+
+	* ext/socket/init.c (rsock_s_recvfrom): pass length to rsock_ipaddr.
+	  (rsock_s_recvfrom_nonblock): ditto.
+
+	* ext/socket/tcpsocket.c (tcp_sockaddr): pass length to
+	  rsock_make_ipaddr.
+
+	* ext/socket/raddrinfo.c (make_ipaddr0): add an argument for socket
+	  address length.  pass the length to rb_getnameinfo.
+	  (rsock_ipaddr): ditto.
+	  (rsock_make_ipaddr): add an argument for socket address length.
+	  pass the length to make_ipaddr0.
+	  (make_inetaddr): pass length to make_ipaddr0.
+	  a local variable renamed.
+	  (host_str): a local variable renamed.
+	  (port_str): ditto.
+
+Thu Feb 14 14:31:43 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/http.rb:  Removed OpenSSL dependency from Net::HTTP.
+
+	* test/net/http/test_http.rb:  Remove Zlib dependency from tests.
+	* test/net/http/test_http_request.rb:  ditto.
+
+Thu Feb 14 11:08:15 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (include_modules_at): detect cyclic prepend with original
+	  method table.  [ruby-core:52205] [Bug #7841]
+
+Thu Feb 14 10:30:41 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_method.c: call method_removed hook on called class, not on
+	  prepending iclass.  [ruby-core:52207] [Bug #7843]
+
+Thu Feb 14 10:05:57 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/http:  Do not handle Content-Encoding when the user sets
+	  Accept-Encoding.  This allows users to handle Content-Encoding for
+	  themselves.  This restores backwards-compatibility with Ruby 1.x.
+	  [ruby-trunk - Bug #7831]
+	* lib/net/http/generic_request.rb:  ditto.
+	* lib/net/http/response.rb:  ditto
+	* test/net/http/test_http.rb:  Test for the above.
+	* test/net/http/test_http_request.rb:  ditto.
+	* test/net/http/test_httpresponse.rb:  ditto.
+
+Thu Feb 14 08:18:47 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: don't define HAVE_SA_LEN and HAVE_SA_LEN.
+	  use HAVE_STRUCT_SOCKADDR_SA_LEN and HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
+	  instead.
+
+Wed Feb 13 20:59:48 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: don't define socklen_t here, just test.
+
+	* ext/socket/rubysocket.h: define socklen_t if not available.
+
+Wed Feb 13 18:37:50 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (mnew): skip prepending modules and return the method bound
+	  on the given class.  [ruby-core:52160] [Bug #7836]
+
+Wed Feb 13 18:11:59 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (method_original_name): new methods Method#original_name and
+	  UnboundMethod#original_name.  [ruby-core:52048] [Bug #7806]
+	  [EXPERIMENTAL]
+
+	* proc.c (method_inspect): show the given name primarily, and
+	  original_id if aliased.  [ruby-core:52048] [Bug #7806]
+
+Wed Feb 13 17:56:39 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (warnflags): disable -Werror by default unless
+	  development.  [ruby-core:52131] [Bug #7830]
+
+Wed Feb 13 06:05:52 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems.rb:  Return BINARY strings from Gem.gzip and Gem.gunzip.
+	  Fixes intermittent test failures.  RubyGems issue #450 by Jeremey
+	  Kemper.
+	* test/rubygems/test_gem.rb:  Test for the above.
+
+Wed Feb 13 05:49:21 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: test functions just after struct members.
+
+Tue Feb 12 12:02:35 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/json: merge JSON 1.7.7.
+	  This includes security fix. [CVE-2013-0269]
+	  https://github.com/flori/json/commit/d0a62f3ced7560daba2ad546d83f0479a5ae2cf2
+	  https://groups.google.com/d/topic/rubyonrails-security/4_YvCpLzL58/discussion
+
+Mon Feb 11 23:08:48 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: enable rb_cv_page_size_log test for MirOS BSD.
+
+Mon Feb 11 20:06:38 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: use -pthread on mirbsd*.
+
+Mon Feb 11 16:07:09 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: add SOLIBS and LIBRUBY_SO definition for mirbsd*.
+
+Mon Feb 11 13:17:20 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (rubysitearchprefix): sitearchdir and vendorarchdir
+	  should use sitearch, not arch.  [ruby-dev:46964] [Bug #7823]
+
+	* win32/Makefile.sub (config.status): site and vendor directories
+	  should use sitearch, not arch.  [ruby-dev:46964] [Bug #7823]
+
+Mon Feb 11 12:31:25 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: move OS specific header/function knowledge before
+	  automatic header tests.
+
+Mon Feb 11 11:04:29 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: move the test for -march=i486 just after
+	  RUBY_UNIVERSAL_ARCH/RUBY_DEFAULT_ARCH.
+
+Sun Feb 10 23:42:26 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: test structure members just after types test.
+
+Sun Feb 10 20:58:17 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: test types just after headers test.
+
+Sun Feb  10 16:00:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/rake/doc/MIT-LICENSE: Add license file from upstream
+	* lib/rake/doc/README.rdoc: Link to license file from Rake README
+	* lib/rake/version.rb: Include README rdoc for Rake module overview
+
+Sun Feb  10 15:26:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/rake/doc/*: Sync Rake rdoc files from upstream
+
+Sun Feb 10 15:50:02 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* vm_exec.h (DISPATCH_ARCH_DEPEND_WAY): use __asm__ __volatile__
+	  instead of asm volatile.
+
+Sun Feb 10 15:50:02 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* gc.h (SET_MACHINE_STACK_END): use __volatile__ instead of volatile.
+
+Sun Feb 10 14:25:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* doc/rake/, lib/rake/doc/: Move Rake rdoc files to lib/rake
+
+Sun Feb 10 12:10:25 2013  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: test headers at first.
+
+Sun Feb  10 12:00:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* doc/rake/*: Removed stale Rake static files
+
+Sun Feb  10 09:10:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* lib/pp.rb, lib/prettyprint.rb: Documentation for PP and PrettyPrint
+	  Based on a patch by Vincent Batts [ruby-core:51253] [Bug #7656]
+
+Sat Feb  9 21:11:21 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: move header files check to the beginning of
+	  "header and library section".
+	  test rlim_t with sys/types.h and sys/time.h for MirOS BSD.
+	  sys/types.h and sys/time.h is guarded by #ifdef and the above
+	  move is required for this change.
+
+Sat Feb  9 17:45:58 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in, version.c: prevent duplicated load paths by empty
+	  version string, it does not work right now.
+
+Sat Feb  9 17:38:41 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: fix arch parameters in help message.  [Bug #7804]
+
+Sat Feb  9 13:13:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* vm_trace.c: Note about TracePoint events set, and comment on
+	  Kernel#set_trace_func to prefer new TracePoint API
+
+Sat Feb  9 10:07:47 2013  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* BSDL: update copyright notice for 2013.
+
+Sat Feb  9 09:24:38 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/package/old.rb:  Fix behavior only on ruby 1.8.
+
+	* lib/rubygems/package.rb:  Include checksums.yaml.gz signatures for
+	  verification.
+	* test/rubygems/test_gem_package.rb:  Test for the above.
+
+Sat Feb  9 01:23:24 2013  Tanaka Akira  <akr@fsij.org>
+
+	* test/fiddle/helper.rb: specify libc and libm locations for MirOS BSD.
+
+	* test/dl/test_base.rb: ditto.
+
+Fri Feb  8 23:25:33 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: change CFLAGS temporally to test
+	  ARCH_FLAG="-march=i486".
+
+Fri Feb  8 21:19:41 2013  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: don't define ARCH_FLAG="-march=i486" if it causes
+	  compilation problem.
+
+For the changes before 2.0.0, see doc/ChangeLog-2.0.0
+For the changes before 1.9.3, see doc/ChangeLog-1.9.3
+For the changes before 1.8.0, see doc/ChangeLog-1.8.0
+
+Local variables:
+coding: us-ascii
+add-log-time-format: (lambda ()
+  (let* ((time (current-time))
+	 (system-time-locale "C")
+	 (diff (+ (cadr time) 32400))
+	 (lo (% diff 65536))
+	 (hi (+ (car time) (/ diff 65536))))
+  (format-time-string "%a %b %e %H:%M:%S %Y" (list hi lo) t)))
+indent-tabs-mode: t
+tab-width: 8
+change-log-indent-text: 2
+end:
+vim: tabstop=8 shiftwidth=2
diff --git a/doc/ChangeLog-2.2.0 b/doc/ChangeLog-2.2.0
new file mode 100644
index 0000000000..5a7dbf826d
--- /dev/null
+++ b/doc/ChangeLog-2.2.0
@@ -0,0 +1,12157 @@
+Thu Dec 25 16:01:19 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (rb_file_expand_path_internal): drop characters ignored
+	  by filesystem on Mac OS X.
+
+Thu Dec 25 15:36:15 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (replace_real_basename): get the real name and replace the
+	  base name with it by getattrlist(2) if available.
+	  suggested by Matthew Draper at [ruby-core:67116].  [Bug #10015]
+
+	* dir.c (glob_helper): get the real name of the whole path, not
+	  only the last name.
+
+Thu Dec 25 13:59:17 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (NET_LUID): include also ifdef.h as a workaround of
+	  a bug in mingw-w64 header.  [ruby-core:67103] [Bug #10640]
+
+Thu Dec 25 12:47:44 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (gettable_gen): warn possible reference to a local
+	  variable defined in a past scope.
+
+Thu Dec 25 10:09:14 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/io/console/console.c (console_dev): id_console is not a
+	  constant name, use rb_const_remove() to get rid of NameError.
+
+Thu Dec 25 09:18:55 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/resolv/test_dns.rb (TestResolvDNS#test_query_ipv4_address):
+	  set timeout for recvfrom because if client thread is crashed, it
+	  waits infinity.
+
+Thu Dec 25 08:42:11 2014  Eric Wong  <e@80x24.org>
+
+	* lib/uri/generic.rb (split_userinfo): fstring for 1-byte split
+	  (set_port): reduce bytecode size
+	  (check_path): reduce garbage via opt_str_freeze
+	  (query=): ditto
+	  (fragment=): ditto
+	  [misc #10628]
+	* lib/uri/rfc3986_parser.rb (regexp): cache as attr
+	  (initialize): setup and freeze regexp attr once
+	  (split): reduce bytecode size, use opt_str_freeze
+	  (parse): minor bytecode and garbage reduction
+	  (default_regexp): rename for initialize
+
+Wed Dec 24 20:38:16 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (glob_make_pattern): restrict searching case-insensitive
+	  name from the filesystem to only last part, for the performance.
+	  [ruby-core:63591] [Bug #10015]
+
+Wed Dec 24 18:21:27 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: remove unused rb_objspace_t::rgengc::old_objects_at_gc_start.
+
+Wed Dec 24 13:25:22 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/redmine-backporter.rb: require view_changesets permission.
+
+Wed Dec 24 13:00:24 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/downloader.rb (Downloader.download): fix the exception to
+	  re-raise.  initialize methods of subclasses of Exception may
+	  have different parameters.  [ruby-core:67086] [Bug #10639]
+
+Wed Dec 24 12:16:19 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ruby.h (rb_data_type_t): revert r48647 and revise parent member.
+	  [ruby-core:66969] [Bug #10621]
+
+Wed Dec 24 05:40:52 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/downloader.rb: use config.guess in gcc repo.
+
+Wed Dec 24 11:50:19 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* hash.c (rb_hash_delete): return Qnil if there are no corresponding
+	  entry. [Bug #10623]
+
+	* hash.c (rb_hash_delete_entry): try delete and return Qundef if there
+	  are no corresponding entry.
+
+	* internal.h: add rb_hash_delete_entry()'s declaration.
+
+	* symbol.c: use rb_hash_delete_entry().
+
+	* thread.c: use rb_hash_delete_entry().
+
+	* ext/-test-/hash/delete.c: use rb_hash_delete_entry().
+
+Wed Dec 24 09:35:11 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/fiddle/extconf.rb: remove ffitarget.h generated by configure on
+	  mswin, because it's not normal file (cygwin's symlink) and have
+	  system attribute.
+
+Wed Dec 24 05:40:52 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/downloader.rb: support ruby 1.8.
+
+Wed Dec 24 02:44:06 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http/response.rb (Net::HTTPResponse): require one or more
+	  spaces [Bug #10591].
+	  by leriksen <leif.eriksen.au@gmail.com>
+	  https://github.com/ruby/ruby/pull/782 fix GH-782
+	  NOTE: graph.facebook.com returns without SP Reason-Phrase.
+
+Wed Dec 24 02:12:22 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/make-snapshot (package): VCS#branch_list expects glob a
+	  pattern string but not a regexp.  based on the patch by Vit
+	  Ondruch.  in [ruby-core:67064].  [Bug #10636]
+
+	* tool/vcs.rb (VCS::SVN#branch_list): strip newlines.
+
+	* tool/vcs.rb (VCS::GIT.get_revisions): retrieve modified time
+	  from toplevel log too.
+
+	* tool/vcs.rb (VCS::GIT#branch_list): yield for each lines.
+
+Wed Dec 24 00:23:13 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* tool/extlibs.rb (do_extract): the pipe should be binmode.
+
+Wed Dec 24 00:21:44 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* Makefile.in, common.mk: move common-srcs to Makefile.in because
+	  it breaks build on mswin.
+
+Wed Dec 24 00:04:45 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/open-uri.rb (OpenURI.open_http): accept multiple certs path in
+	  ssl_ca_certs.
+
+	* tool/downloader.rb: use certs of rubygems for downloading gems.
+
+Tue Dec 23 22:39:11 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/fiddle/extlibs: libffi-3.2.1 and patch for mswin.
+
+Tue Dec 23 22:04:38 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/generic.rb (URI::Generic#query=): don't escape [\]^
+	  on both rfc2396 and rfc3986. [Bug #10619]
+
+Tue Dec 23 16:03:35 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/win32/lib/win32/registry.rb (Win32::Registry::Error#initialize):
+	  try en_US message if the default message cannot be encoded to
+	  locale.  [ruby-core:65295] [Bug #10300]
+
+Tue Dec 23 11:42:14 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/openssl/ossl_cipher.c (ossl_cipher_update_long): update huge
+	  data gradually not to exceed INT_MAX.  workaround of OpenSSL API
+	  limitation.  [ruby-core:67043] [Bug #10633]
+
+Mon Dec 22 21:30:16 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* test/win32ole/test_win32ole_event.rb: some tests are
+	  executed on standard Windows OS without ADO.
+
+Mon Dec 22 14:08:31 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* signal.c (received_signal): fix condition to define.
+	  [ruby-core:67032] [Bug #10629]
+
+Sun Dec 21 10:51:51 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* test/win32ole/test_win32ole_event.rb: test_s_new_exception is
+	  executed on standard Windows OS without ADO.
+
+Sun Dec 21 08:35:26 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (jemalloc): fix option argument, should use
+	  `$withval` but not `yes` always.  [ruby-core:66994] [Bug #10625]
+
+	* configure.in (jemalloc): defer adding the liner option to get
+	  rid of linking contest against jemalloc, so that it works
+	  without runtime dynamic load path.
+
+Sat Dec 20 17:49:03 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/tmpdir.rb (Dir.mktmpdir): Accept nil again, as Ruby 2.1.
+	  [ruby-core:66943] [Bug #10616] Fixed by Alex Slynko.
+
+Sat Dec 20 11:22:58 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/fiddle/depend, ext/fiddle/extconf.rb: try to build bundled
+	  libffi if existing.
+
+Sat Dec 20 05:21:00 2014  Eric Wong  <e@80x24.org>
+
+	* test/test_weakref.rb (test_repeated_object_leak): increase timeout
+	  [Bug #10618]
+
+Fri Dec 19 22:33:13 2014  Tanaka Akira  <akr@fsij.org>
+
+	* tool/update-deps: Use $(hdrdir) if possible.
+
+Fri Dec 19 22:10:00 2014  Kenta Murata  <mrkn@cookpad.com>
+
+	* ext/bigdecimal/depend: Fix dependencies to make bigdecimal
+	  installable by rubygems.
+
+	* ext/bigdecimal/bigdecimal.gemspec: version 1.2.6.
+
+Fri Dec 19 20:00:19 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (PRIsVALUE): put a space after string
+	  literals not to be confused with C++11 string literal suffix.
+	  https://github.com/ruby/ruby/commit/a9f3eb7#commitcomment-9040169
+
+Fri Dec 19 15:36:02 2014  Simon Genier  <simon.genier@shopify.com>
+
+	* hash.c (hash_equal): prefer true than the result of implicit
+	  conversion from int returned by rb_eql() to VALUE.  [Fix GH-789]
+
+Thu Dec 18 17:45:26 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (rb_cv_binary_elf): get rid of -e option of cat
+	  which is not available on BusyBox, use tr instead.
+	  [ruby-core:64824] [Bug #10210]
+
+Thu Dec 18 14:25:17 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* signal.c (ruby_signal): since SIGKILL is not supported by MSVCRT,
+	  should be treated before calling signal(3).
+	  [Bug #10615]
+
+Wed Dec 17 12:20:56 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (rb_method_for_self_aref, rb_method_for_self_aset):
+	  move from iseq.c to build from node instead of arrays.
+
+Wed Dec 17 10:50:09 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/gdbm/test_gdbm.rb: Added test for each_key called without a block.
+	  Patch by @joeyates [fix GH-783]
+
+Wed Dec 17 10:18:42 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (iseq_compile_each): check
+	  iseq->compile_data->option->specialized_instruction for opt_* insn.
+
+	* test/ruby/test_iseq.rb: check no specialized_instructions option.
+
+Wed Dec 17 09:48:57 2014  Eric Wong  <e@80x24.org>
+
+	* compile.c (iseq_compile_each): only emit opt_str_freeze,
+	  opt_aref_with, and opt_aset_with insn when no block is given
+	  [Bug #10557] [ruby-core:66595]
+	* test/ruby/test_optimization.rb (test_block_given_aset_aref):
+	  new test for bug thanks to Bartosz Kopinski.
+	  (test_string_freeze): additional assertion for object_id
+
+Wed Dec 17 01:06:47 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/win32/lib/Win32API.rb (Win32API#call): need to splat.  hmm, when
+	  was this broken?
+
+Tue Dec 16 15:18:23 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* iseq.c (rb_method_for_self_aref, rb_method_for_self_aset): call
+	  accessor functions directly, not to be affected by [] and []=
+	  methods.  [ruby-core:66846] [Bug #10601]
+
+	* struct.c (define_aref_method, define_aset_method): ditto.
+
+	* vm_insnhelper.c (rb_vm_opt_struct_aref, rb_vm_opt_struct_aset):
+	  direct accessors of Struct.
+
+Tue Dec 16 12:01:29 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_process.rb (test_deadlock_by_signal_at_forking):
+	  extend timeout seconds to 60 for RGENGC_CHECK_MODE > 0 environment.
+
+Tue Dec 16 08:53:12 2014  Eric Wong  <e@80x24.org>
+
+	* tool/vcs.rb: fix Ruby 1.8 compatibility harder
+
+Tue Dec 16 07:37:18 2014  Eric Wong  <e@80x24.org>
+
+	* gc.c (GC_HEAP_FREE_SLOTS): move definition to match use order
+	  (RUBY_GC_HEAP_GROWTH_SLOTS): s/factor/number of slots/
+
+	* man/ruby.1: add section for GC environment variables
+	  [Feature #10197]
+
+Tue Dec 16 05:41:46 2014  Eric Wong  <e@80x24.org>
+
+	* tool/vcs.rb: fix Ruby 1.8 compatibility
+
+Mon Dec 15 17:51:28 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/objspace.c: ObjectSpace.memsize_of(obj) returns
+	  with sizeof(RVALUE). [Bug #8984]
+
+	* gc.c (obj_memsize_of): ditto.
+
+	* NEWS: add a NEWS entry.
+
+	* test/objspace/test_objspace.rb: catch up this fix.
+
+	* test/ruby/test_file_exhaustive.rb: ditto.
+
+Mon Dec 15 16:19:23 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_enc_str_coderange): dummy wchar, non-endianness
+	  encoding string cannot be ascii only.
+	  [ruby-core:66835] [Bug #10598]
+
+Sun Dec 14 20:11:42 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (primary): restore current_arg so that circular
+	  reference after a method definition is also warned.
+	  [ruby-core:61299] [Bug #9593]
+
+Sat Dec 13 20:41:55 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_trace.c (rb_postponed_job_flush): mask signal trap interrupt
+	  too to defer handling after finalizers finished.
+	  [ruby-core:66825] [Bug #10595]
+
+Sat Dec 13 18:33:25 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/openssl/test_pkey_ec.rb: ignored tests with old OpenSSL.
+
+Sat Dec 13 18:01:57 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* signal.c (check_stack_overflow): check sp also on i386/x86_64
+	  FreeBSD.
+
+Sat Dec 13 09:58:41 2014  Eric Wong  <e@80x24.org>
+
+	* gc.c (define_final0): avoid duplicate blocks
+	  [Bug #10537]
+	* test/test_weakref.rb (test_repeated_object_leak): new test
+
+Sat Dec 13 04:59:20 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* bin/erb (ERB::Main#run): get rid of shadowing outer local
+	  variables.  [ruby-core:65772] [Feature #10395]
+
+Fri Dec 12 21:56:44 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* gems/bundled_gems: Upgrade to test-unit 3.0.8. assert_throw and
+	  assert_nothing_thrown in test-unit 3.0.7 were broken by
+	  UncaughtThrowError change introduced in Ruby 2.2.0
+	  preview2. These assertions in test-unit 3.0.8 work well with
+	  UncaughtThrowError in Ruby 2.2.0 preview2.
+
+Fri Dec 12 19:48:55 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* bin/erb (ARGV.switch, ERB::Main#run): allow variables to be set
+	  from the command line.  [ruby-core:65772] [Feature #10395]
+
+Fri Dec 12 19:31:44 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/erb.rb (ERB#lineno): accessor for line number to eval.
+
+	* lib/erb.rb (ERB#location=): setter of file name and line number.
+
+Fri Dec 12 13:09:13 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_latest_gc_info): return :state field to show current
+	  GC state (none/marking/sweeping).
+	  [Feature #10590]
+
+Fri Dec 12 10:49:18 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_crypt): check arguments more strictly.
+	  * crypt() is not for wide char strings
+	  * salt bytes should not be NUL
+
+Fri Dec 12 08:16:01 2014  Matt Hoyle  <matt@deployable.co>
+
+	* io.c (io_read) Fix spelling in docco for read.  [Fix GH-781]
+	  try > tries
+
+Thu Dec 11 19:06:01 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* class.c (class_alloc): Start from age == 2.
+	  Class and Module objects can be living long life.
+
+	* iseq.c: Same for ISeq objects.
+
+	* gc.c (RVALUE_AGE_RESET): added.
+
+	* gc.c (newobj_of): allow to generate (age != 0) objects.
+
+	* gc.c (rb_copy_wb_protected_attribute): reset age for wb unprotected
+	  objects.
+
+	* include/ruby/ruby.h: add RUBY_TYPED_PROMOTED1 as an unrecommended
+	  flag.
+
+Thu Dec 11 05:37:52 2014  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/prime.rb: Remove useless loop and block capture.
+	  See [#10354]
+
+Thu Dec 11 04:27:24 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h: introduce new field
+	  rb_thread_t::local_storage_recursive_hash_for_trace to store
+	  recursive hash to avoid creating new recursive (nested) hashes
+	  for each trace events.
+	  [Bug #10511]
+
+	* vm_trace.c (rb_threadptr_exec_event_hooks_orig): use it.
+
+	* cont.c: catch up this fix.
+
+	* vm.c (rb_thread_mark): ditto.
+
+Wed Dec 10 13:39:27 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* struct.c (define_aref_method, define_aset_method): use iseq
+	  VALUE instead of rb_iseq_t to prevent from GC, as RB_GC_GUARD
+	  makes sense only for local variables.  [Feature #10575]
+
+Wed Dec 10 09:38:40 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread.c (exec_recursive): use the same last method name as
+	  recursive_push in the error message when recursive_pop failed.
+	  [ruby-core:66742] [Bug #10579]
+
+Wed Dec 10 02:48:46 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/net/http/test_https.rb
+	  (TestNetHTTPS#test_certificate_verify_failure): on Windows,
+	  Errno::ECONNRESET will be raised when the verify is failure at the
+	  client side, and it'll be eaten by WEBrick.
+
+	* test/open-uri/test_ssl.rb (TestOpenURISSL#test_validation_failure):
+	  ditto.
+
+Wed Dec 10 00:42:13 2014  Eric Wong  <e@80x24.org>
+
+	* iseq.c (rb_method_for_self_aref, rb_method_for_self_aset):
+	  new methods to generate bytecode for struct.c
+	  [Feature #10575]
+	* struct.c (rb_struct_ref, rb_struct_set): remove
+	  (define_aref_method, define_aset_method): new functions
+	  (setup_struct): use new functions
+	* test/ruby/test_struct.rb: add test for struct >10 members
+	* benchmark/bm_vm2_struct_big_aref_hi.rb: new benchmark
+	* benchmark/bm_vm2_struct_big_aref_lo.rb: ditto
+	* benchmark/bm_vm2_struct_big_aset.rb: ditto
+	* benchmark/bm_vm2_struct_small_aref.rb: ditto
+	* benchmark/bm_vm2_struct_small_aset.rb: ditto
+
+Tue Dec  9 20:24:41 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* string.c: [DOC] Add missing documentation around String#chomp.
+	  Patch by @stderr [ci skip][fix GH-780]
+
+Tue Dec  9 18:20:02 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c: [DOC] Revise documentation by Marcus Stollsteimer at
+	  [ruby-core:66368].  [Bug #10526]
+
+	  * #inspect: be more specific about generated string, remove
+	    obsolete example.
+	  * #nil?: use code examples instead of different call-seq's.
+	  * #tap: clarify what is yielded.
+	  * Integer(): be more specific about to_int and to_i, remove
+	    reference to Ruby 1.8.
+	  * Array(): fix error.
+	  * Class: fix variable name style and indentation in example.
+	  * improve consistency, fix typos and formatting.
+
+Tue Dec  9 12:48:32 2014  Josef Simanek  <josef.simanek@gmail.com>
+
+	* vm_eval.c (rb_eval_string_wrap): [DOC] Fix `rb_eval_string_wrap`
+	  documentation.  It is referencing `require` instead of `load`.
+	  The former does not have the optional argument.  [Fix GH-779]
+
+Tue Dec  9 10:16:24 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval.c (rb_frame_last_func): return the most recent frame method
+	  name.
+
+	* thread.c (recursive_list_access): use the last method name,
+	  instead of the current method name which can be unset in some
+	  cases, not to use a symbol by the invalid ID.
+	  [ruby-core:66742] [Bug #10579]
+
+Sun Dec  7 19:36:12 2014  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* ext/socket/basicsocket.c, ext/socket/sockssocket.c:
+	  remove code for $SAFE=4.
+
+Sun Dec  7 10:20:55 2014  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc:  Update to RDoc 4.2.0.
+	* test/rdoc:  ditto.
+
+Sun Dec  7 09:52:30 2014  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems 2.4.5.
+	* test/rubygems:  ditto.
+
+Sat Dec  6 10:05:08 2014  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/imap.rb: Fix undefined variable usage & refactor/DRY
+	  code.  Patch by @aledovsky. [Fixes GH-770]
+
+	* test/net/test_imap.rb: related test.
+
+Sat Dec  6 10:09:44 2014  Eric Wong  <e@80x24.org>
+
+	* thread.c (do_select): rename parameters to avoid shadowing
+
+Sat Dec  6 09:22:45 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/rake:  Update to rake 10.4.2
+	* test/rake: ditto.
+
+Sat Dec  6 06:48:03 2014  Eric Wong  <e@80x24.org>
+
+	* compile.c (rb_iseq_build_from_ary): remove misc handling
+
+Sat Dec  6 06:14:23 2014  Vit Ondruch  <vondruch@redhat.com>
+
+	* configure.in (RUBY_LIB_VERSION): Fix --with-ruby-version
+	  configuration option.  get rid of quoting in config.status.
+
+	* template/verconf.h.tmpl: quote RUBY_LIB_VERSION here.
+	  [ruby-core:66724] [Bug #10572]
+
+Sat Dec  6 04:33:52 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/pp.rb (File::Stat#pretty_print): some platforms (such as Windows)
+	  does not have major/minor parts of device.
+
+Fri Dec  5 22:43:04 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* ext/psych/lib/psych.rb: bump version to 2.0.8
+	* ext/psych/psych.gemspec: ditto.
+	* ext/psych/psych_emitter.c: ditto.
+	* ext/psych/psych_parser.c: ditto.
+
+Fri Dec  5 17:09:09 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/socket/option.c (inet_ntop): link aliased inet_ntop in
+	  libruby on mswin not rb_w32_inet_ntop which fails to link for
+	  unknown reason.
+
+Fri Dec  5 11:09:54 2014  Eric Wong  <e@80x24.org>
+
+	* iseq.c (prepare_iseq_build): remove unused block_opt param
+	  (rb_iseq_new_with_bopt_and_opt): remove
+	  (rb_iseq_new_with_opt): inline removed function
+	  (rb_iseq_new_with_bopt): remove
+	  (iseq_load): adjust prepare_iseq_build call
+	  [Feature #10565]
+
+Fri Dec  5 09:46:05 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_yylex): fix lex_state after tLABEL_END, should
+	  be EXPR_LABELARG to be followed by "paren with arg".
+	  [ruby-core:66705] [Feature #4935]
+
+Fri Dec  5 02:27:47 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/extmk.rb: as all extension objects including initializations
+	  of ext and enc should be linked to libruby if enable-shared,
+	  EXTOBJS should not be linked to main programs.
+	  [ruby-core:66675] [Bug #10566]
+
+Thu Dec  4 07:06:02 2014  Eric Wong  <e@80x24.org>
+
+	* compile.c (rb_iseq_build_from_exception): entry->sp is unsigned
+	  (iseq_build_callinfo_from_hash): account for kw_arg
+	  (iseq_build_from_ary_body): update for r35459
+	  (CHECK_STRING, CHECK_INTEGER): remove unused checks
+	  (int_param): new function for checking new `params' hash
+	  (iseq_build_kw): new function for loading rb_iseq_param_keyword
+	  (rb_iseq_build_from_ary): account for `misc' entry and general
+	   structure changes
+	  [Feature #8543]
+	* iseq.c (CHECK_HASH): new macro (for `misc' and `param' entries)
+	  (iseq_load): account for `misc' and `params' hashes
+	  (iseq_data_to_ary): add final opt to arg_opt_labels,
+	   fix kw support, account for unsigned entry->sp
+	* ext/-test-/iseq_load/iseq_load.c: new ext for test
+	* ext/-test-/iseq_load/extconf.rb: ditto
+	* test/-ext-/iseq_load/test_iseq_load.rb: new test
+
+Thu Dec  4 06:56:57 2014  Eric Wong  <e@80x24.org>
+
+	* iseq.c (iseq_free): avoid segfault on incomplete iseq
+	* test/ruby/test_syntax.rb (test_invalid_next): new test
+	  for syntax error, not segfault
+
+Thu Dec  4 04:20:34 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* load.c (ruby_require_internal): ignore error detail, just return
+	  an error.
+
+Wed Dec  3 17:13:24 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* encoding.c (load_encoding): use rb_require_internal instead of
+	  calling rb_require_safe with protection.
+
+Wed Dec  3 16:47:35 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* load.c (register_init_ext, ruby_init_ext): defer running the
+	  registered initialization function until required, not to enable
+	  extensions which have global effects just by loading, e.g.,
+	  mathn/complex and mathn/rational.  fix `make test` with
+	  --with-static-linked-ext.
+
+	* enc/encinit.c.erb (Init_enc): initialize encdb and transdb
+	  directly.
+
+Wed Dec  3 14:51:26 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* load.c (ruby_require_internal): separate from rb_require_safe,
+	  not to raise exceptions.
+
+	* ruby.c (process_options): remove unnatural encoding search.
+
+Wed Dec  3 14:34:07 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (setup_fake_str): fake string does not share another
+	  string, but just should not free.
+
+Wed Dec  3 11:14:14 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (w32_spawn): `v2` is used not only for `shell` but also
+	  `cmd`, so must not free before using `cmd`.
+	  [ruby-core:66648] [Bug #10563]
+
+Wed Dec  3 09:48:57 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/racc/cparse/cparse.c (cparse_params_type): use typed data.
+
+Tue Dec  2 21:33:56 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: use typed data for com_hash.
+
+Tue Dec  2 15:30:30 2014  Martin Duerst  <duerst@it.aoyama.ac.jp>
+
+	* array.c (rb_ary_plus): in documentation, added note about
+	  inefficiency of repeated += operations.
+
+Tue Dec  2 07:20:21 2014  Eric Wong  <e@80x24.org>
+
+	* iseq.c (iseq_data_to_ary): keep hidden variables
+	  Thanks to wanabe [ruby-core:66566]
+
+Tue Dec  2 06:46:57 2014  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb: bumping version
+
+	* ext/psych/psych.gemspec: ditto
+
+Tue Dec  2 06:34:08 2014  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: support objects that are
+	  marshalable, but inherit from basic object.
+	  Thanks Sean Griffin <sean@thoughtbot.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: ditto
+
+	* test/psych/test_marshalable.rb: test for fix
+
+Tue Dec  2 06:32:02 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (ripper_flush_string_content): preserve the dispatched
+	  results at tSTRING_CONTENT.  [ruby-dev:48714] [Bug #10437]
+
+	* parse.y (regexp_contents): check in ripper only if the whole
+	  content is a single regexp without interpolation.
+	  [ruby-dev:48714] [Bug #10437]
+
+Tue Dec  2 06:30:55 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* re.c (rb_reg_region_copy): new function to try with GC if copy
+	  failed and return the error.
+
+Tue Dec  2 04:43:08 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* re.c (CHECK_REGION_COPIED): onig_region_copy() can fail when
+	  memory exhausted but returns nothing, so check by if allocated.
+
+Tue Dec  2 02:53:00 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (magic_comment_encoding): enable in ripper, since the
+	  encoding is necessary to parse non-default encoding scripts.
+
+Tue Dec  2 02:30:25 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/generic.rb (URI::Generic.build):
+	  use hostname= to detect and wrap IPv6 hosts.
+	  Build is accepting URI components and users may not expect
+	  that a host component needs to be wrapped with square brackets
+	  since it's not providing a URI.
+	  Note: initialize with arg_check => true does not wrap IPv6 hosts.
+	  by Joe Rafaniello <jrafanie@redhat.com>
+	  https://github.com/ruby/ruby/pull/765 fix GH-765
+
+	* test/uri/test_generic.rb: Add more tests
+
+Mon Dec  1 20:01:12 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: use typed data for WIN32OLE.
+	* ext/win32ole/win32ole.h: ditto.
+	* ext/win32ole/win32ole_event.c: ditto.
+
+Mon Dec  1 17:20:42 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/Makefile.sub (verconf.h): so depends on verconf.mk, which
+	  is rebuilt by setup.mak.
+
+Mon Dec  1 11:05:46 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* proc.c: fix grammar by @BenMorganIO [fix GH-764][ci skip]
+
+Mon Dec  1 10:49:53 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* man/rake.1: Update latest man content by @aledovsky
+	  [fix GH-771][ci skip]
+
+Mon Dec  1 10:42:31 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* doc/syntax/refinements.rdoc: refinements are no longer experimental.
+	  patch by @gaurish [fix GH-775][ci skip]
+
+Sun Nov 30 20:05:55 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (regexp_contents): fix a typo.  pointed out by wanabe.
+	  [ruby-dev:48741] [Bug #10543]
+
+Sun Nov 30 18:55:32 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_process.rb (test_deadlock_by_signal_at_forking):
+	  Don't raise Interrupt.
+
+Sun Nov 30 17:11:05 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_process.rb (test_deadlock_by_signal_at_forking): Use
+	  assert_separately.
+
+Sun Nov 30 00:02:52 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ruby.c (process_options, ruby_script): transcode script name and
+	  program name to locale encoding as well as argv.
+	  [ruby-dev:48752] [Bug #10555]
+
+	* ruby.c (translit_char_bin): should not use code page dependent
+	  CharNext on UTF-8 string.  [ruby-dev:48752] [Bug #10555]
+
+Sat Nov 29 16:53:14 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ruby.c (ruby_set_argv): convert argv from UTF-8.
+
+	* win32/win32.c (rb_w32_sysinit, cmdglob, w32_cmdvector): convert
+	  wide char command line to UTF-8 argv, and glob in UTF-8 so that
+	  metacharacters would match multibyte characters.
+	  [ruby-dev:48752] [Bug #10555]
+
+Sat Nov 29 10:49:23 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (win32_direct_conv, rb_w32_readdir): convert UTF-8
+	  and filesystem code page by using Win32 API directly.
+
+Sat Nov 29 09:37:10 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (syserr_initialize): simplify message building and get
+	  rid of potential invalid byte sequence.
+
+Sat Nov 29 06:09:44 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* eval_error.c (error_print): respect the encoding of the message.
+
+	* io.c (rb_write_error_str): use rb_w32_write_console() on Windows
+	  if stderr is a tty.
+
+Fri Nov 28 05:10:23 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (--with-setup): add option to select ext/Setup file.
+
+Fri Nov 28 05:02:29 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dmyenc.c (Init_enc): separate from dmyext.c for statically
+	  linked extension excluding encoding libraries.
+
+Thu Nov 27 21:58:30 2014  Tanaka Akira  <akr@fsij.org>
+
+	* common.mk (miniprelude.c): It does not depend on prelude.rb now.
+
+Thu Nov 27 21:49:49 2014  Tanaka Akira  <akr@fsij.org>
+
+	* tool/update-deps: List up files built always in the source directory
+	  and source files built always in the build directory.
+
+Thu Nov 27 21:24:55 2014  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* NEWS: add obsolete callcc.
+
+Thu Nov 27 19:59:49 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (iseq_compile_each): remove duplicated line event.
+	  [Bug #10449]
+
+	* test/ruby/test_settracefunc.rb: add and fix tests.
+
+Thu Nov 27 19:04:50 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_args.c: fix backtrace location for keyword related exceptions.
+
+	  For example, the following program
+	    def foo(k1: 1); end # line 1
+	    foo(k2: 2)          # line 2
+	  causes "unknown keyword: k2 (ArgumentError)".
+
+	  Before this patch, the backtrace location is only line 2.
+	  However, error should be located at line 1 (over line 2 in
+	  stack trace). This patch fix this problem.
+
+	* class.c (rb_keyword_error_new): separate exception creation logic
+	  from rb_keyword_error(), to use in vm_args.c.
+
+	* vm_insnhelper.c (rb_arg_error_new): rename to rb_arity_error_new().
+
+	* vm_args.c (argument_arity_error): rename to argument_arity_error().
+
+	* vm_args.c (argument_kw_error): added to fix backtrace.
+
+	* test/ruby/test_keyword.rb: add tests.
+
+Thu Nov 27 17:31:58 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (prelude.c): no longer depends on miniruby, since not
+	  depending on rbconfig.rb.
+
+Thu Nov 27 17:12:14 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (miniprelude.c): miniruby needs no preludes.
+
+Thu Nov 27 17:10:19 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* template/prelude.c.tmpl: no code if no prelude code is given.
+
+Thu Nov 27 13:11:00 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (objspace_malloc_increase): enable lazy sweep on GC by malloc()
+	  (malloc_increase) to make GC incrementally.
+
+	  This change can increase memory consumption. Report us if you find
+	  any problem.
+
+Thu Nov 27 12:46:38 2014  Tanaka Akira  <akr@fsij.org>
+
+	* time.c (time_s_mkutc): [DOC] Time.utc's 10 arguments form
+	  doesn't examine wday, yday, isdst and tz.
+	  (time_s_mktime): [DOC] Time.mktime's 10 arguments form
+	  doesn't examine wday, yday and tz.
+	  Suggested by naruse.
+
+Thu Nov 27 11:45:33 2014  Eric Wong  <e@80x24.org>
+
+	* iseq.c (iseq_data_to_ary): add missing GC guard
+
+Thu Nov 27 10:51:59 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h: add rb_thread_t::local_storage_recursive_hash
+	  to speed up Thread#[:__recursive_key__] access.
+	  [Bug #10511]
+
+	* thread.c (threadptr_local_aref): add fast path for
+	  :__recursive_data__.
+
+	* thread.c (threadptr_recursive_hash, threadptr_recursive_hash_set):
+	  add special accessor for recursive hash.
+
+	* cont.c: store/restore local_storage_recursive_hash.
+
+	* vm.c: init and mark local_storage_recursive_hash.
+
+	* vm_trace.c (rb_threadptr_exec_event_hooks_orig): clear and restore
+	  local_storage_recursive_hash directly.
+
+Thu Nov 27 07:11:00 2014  Eric Wong  <e@80x24.org>
+
+	* compile.c (iseq_calc_param_size): hoist out of iseq_set_arguments
+
+Wed Nov 26 22:28:12 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (rb_get_kwargs, rb_extract_keywords): export
+	  keyword argument functions.
+
+Wed Nov 26 21:18:40 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/inlinetest.rb: removed unused test helper.
+
+Wed Nov 26 20:47:28 2014  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* ext/continuation/continuation.c (Init_continuation): obsolete callcc.
+	  first step of [Feature #10548].
+
+Wed Nov 26 19:57:54 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_gc.rb (test_latest_gc_info): do test separately
+	  to avoid mysterious behavior.
+
+Wed Nov 26 19:54:31 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (constat_reset): do nothing on non-standard
+	  console emulators.  [ruby-core:66471] [Bug #10546]
+
+Wed Nov 26 19:44:13 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/tsort.rb: Returns an enumerator if no block is given.
+	  [ruby-core:66270] [Feature #10508] Proposed by Andrey Savchenko.
+
+Wed Nov 26 17:25:45 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (f_label, f_kw, formal_argument_gen): ignore invalid
+	  formal argument in keyword argument definition.
+	  [ruby-dev:48742] [Bug #10545]
+
+Wed Nov 26 15:32:06 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (iseq_set_sequence): use "nop" insn instead of
+	  "jump to next insn".
+	  https://bugs.ruby-lang.org/issues/8543#change-50085
+
+Wed Nov 26 11:01:35 2014  Eric Wong  <e@80x24.org>
+
+	* iseq.c (iseq_s_compile_file): close IO when done
+
+Wed Nov 26 06:06:23 2014  Tanaka Akira  <akr@fsij.org>
+
+	* common.mk: encdb.h and transdb.h depends on $(PREP).
+	  So prebuild files for them in tarball are useless.
+
+Wed Nov 26 02:08:44 2014  Tanaka Akira  <akr@fsij.org>
+
+	* tool/make-snapshot: Don't generate enc/trans/newline.c in tarball.
+
+Wed Nov 26 00:41:44 2014  Tanaka Akira  <akr@fsij.org>
+
+	* common.mk (prereq): Don't depends on prelude.c and golf_prelude.c.
+	  Since they depend on $(PREP) which is miniruby, they are rebuilt
+	  after miniruby is built, even if tarball contains them.
+
+Wed Nov 26 00:20:48 2014  Tanaka Akira  <akr@fsij.org>
+
+	* template/prelude.c.tmpl: Don't expand RbConfig::Config[...].
+	  It is not used now.
+
+	* common.mk: prelude.c and golf_prelude.c doesn't depend on rbconfig.
+
+Tue Nov 25 17:07:06 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* NEWS: add an "Implementation changes" section.
+
+Tue Nov 25 16:09:28 2014  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/net/http.rb:  Do not attempt SSL session resumption when the
+	  session is expired.  [Bug #10533]
+
+Tue Nov 25 15:59:46 2014  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rake:  Update to rake 10.4.0
+	* test/rake:  ditto.
+	* NEWS:  ditto.
+
+	* test/lib/minitest/unit.rb:  Add compatibility shim for minitest 5.
+	  This only provides minitest 5 unit test naming compatibility.
+
+Tue Nov 25 15:26:33 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/vcs.rb (get_revisions): use Time.new instead of Time.mktime
+	  which does not accept UTC offset, and offset manually for older
+	  versions than 1.9.
+
+Tue Nov 25 12:14:43 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (Init_process): initialize static IDs before constant
+	  definitions.  [ruby-core:66445]
+
+Tue Nov 25 10:32:23 2014  Eric Wong  <e@80x24.org>
+
+	* compile.c (iseq_build_callinfo_from_hash): hoist out
+	  (iseq_build_from_ary_body): shorten callinfo case
+
+Mon Nov 24 23:03:21 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* gems/bundled_gems: Update to test-unit 3.0.7.
+
+Mon Nov 24 12:44:35 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (check_exec_redirect_fd, check_exec_redirect),
+	  (rb_execarg_addopt): get rid of inadvertent ID pindown.
+
+Mon Nov 24 02:03:40 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_setter): preserve encoding of global variable
+	  name in error message.
+
+Mon Nov 24 02:03:30 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* iseq.c (rb_insn_operand_intern): preserve encoding of method
+	  name in CALL_INFO at disassembling.
+
+Mon Nov 24 02:02:59 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (must_respond_to): preserve encodings of variable name and
+	  class name in warning message.
+
+Sun Nov 23 10:46:23 2014  Eric Wong  <e@80x24.org>
+
+	* internal.h (struct rb_execarg): 160 => 144 bytes on x86-64
+	* ruby.c (struct load_file_arg): 48 => 40 bytes on x86-64
+	* vm_args.c (struct args_info): ditto
+
+Sun Nov 23 07:46:54 2014  Andy Maloney  <asmaloney@gmail.com>
+
+	* io.c (rb_io_sysread): Remove redundant assignment of 'n'.
+	  [Fix GH-767]
+
+Sat Nov 22 09:48:33 2014  Tanaka Akira  <akr@fsij.org>
+
+	* tool/make-snapshot: Specify PWD macro for make.
+	  PWD environment variable may not exist.
+
+Fri Nov 21 11:58:58 2014  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* lib/resolv.rb: fall back if canonicalization fails.
+	  Thanks Vit Ondruch for the patch!  [ruby-core:65836]
+
+	* test/resolv/test_dns.rb: test for patch
+
+Sat Nov 22 01:11:53 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_mod_const_get, rb_mod_const_defined): ditto.
+
+	* variable.c (rb_const_missing, rb_mod_const_missing): call
+	  const_missing without new ID to get rid of inadvertent ID
+	  creation.
+
+Fri Nov 21 19:32:57 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* common.mk (ext/ripper/ripper.c): revert about srcdir and top_srcdir.
+
+	* common.mk (ext/ripper/ripper.c): use $(PWD) for Unix,
+	  $(MAKEDIR) for Windows.
+
+Fri Nov 21 18:12:37 2014  Tanaka Akira  <akr@fsij.org>
+
+	* tool/update-deps: Refactored.
+
+Fri Nov 21 14:25:40 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/Makefile.sub (top_srcdir): added because lacking this macro
+	  causes build error at r48526.
+
+Fri Nov 21 12:00:58 2014  Tanaka Akira  <akr@fsij.org>
+
+	* tool/update-deps (in_makefile): Use FILES_NEED_VPATH and
+	  FILES_CONFUSING.
+
+	* ext/objspace/extconf.rb: Add VPATH for id.h
+
+Fri Nov 21 09:10:23 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (ext/ripper/ripper.c): fix dependencies for the case
+	  to make ripper.y and id.h under the build directory.
+
+Fri Nov 21 08:42:21 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* common.mk (ext/ripper/ripper.c): id.h in VPATH may exist in the build
+	  directory.
+
+	* common.mk (ext/ripper/ripper.c): $(RM) was not defined.
+
+Fri Nov 21 00:36:09 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/openssl/lib/openssl/x509.rb
+	  (OpenSSL::X509::Name::RFC2253DN::StringChar): get rid of a false
+	  positive assertion in ripper's test.
+
+Fri Nov 21 00:29:51 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/net/imap.rb (Net::IMAP::ResponseParser::BEG_REGEXP): no need to
+	  use embed string.
+
+Fri Nov 21 00:19:17 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/uri/mailto.rb (URI::MailTo::EMAIL_REGEXP): should escape `#`.
+
+Thu Nov 20 23:17:11 2014  Tanaka Akira  <akr@fsij.org>
+
+	* tool/update-deps: Insert all dependencies found by compiler.
+
+Thu Nov 20 15:51:01 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/nkf/depend (nkf.o): add nkf.c as dependency.
+	  bsdmake tries to make nkf.o with nkf-utf8/nkf.c without this.
+
+Thu Nov 20 08:54:56 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (struct parser_params): reduce size by reordering
+	  members and an unused member.
+
+Thu Nov 20 02:44:27 2014  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb: Vector#independent? and associated class method
+	  patch by gogo tanaka [#10451]
+
+Thu Nov 20 02:32:34 2014  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb: Add Vector#angle_with
+	  Patch by Egunov Dmitriy [#10442]
+
+Thu Nov 20 02:10:31 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (ripper_flush_string_content, parser_parse_string):
+	  preserve parsed string content.  [ruby-dev:48714] [Bug #10437]
+
+	* parse.y (ripper_new_yylval): abstract function to create ripper
+	  wrapper, and make it able to hold another object.
+
+Thu Nov 20 01:00:59 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (reg_named_capture_assign_gen): use predefined ID
+	  instead of rb_intern.
+
+Thu Nov 20 00:54:57 2014  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (ruby_init_setproctitle): Declare here.
+
+Thu Nov 20 00:26:37 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_here_document): append byte sequence directly to
+	  the delayed content instead of creating an intermediate string
+	  object.
+
+Wed Nov 19 21:11:01 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* common.mk (ext/json/parser/parser.c): don't touch parse.c,
+	  ruby repo is a downstream.
+
+Wed Nov 19 20:38:11 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* common.mk (ext/ripper/ripper.c): use $(PWD) to get
+	  <build-directory>/ext/ripper.
+
+Wed Nov 19 18:12:17 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/downloader.rb (RubyGems.download): Don't download gem if the
+	  version is already downloaded. A gem file is versioned and
+	  it must be identical if the version is the same.
+
+Wed Nov 19 17:59:25 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* common.mk (ext/ripper/ripper.c): pass build directory as VPATH.
+
+	* ext/ripper/depend (.y.c): use VPATH for y.tab.c.
+
+Wed Nov 19 10:07:57 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* template/prelude.c.tmpl (Prelude#translate): strip VPATH prefix
+	  from prelude names, so that srcdir differences do not make the
+	  generated code different.
+
+Wed Nov 19 07:45:11 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_write): should set the error of
+	  GetOverlappedResult()'s, not WriteFile()'s (it's always
+	  ERROR_IO_PENDING, of course).
+
+Tue Nov 18 14:16:47 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_record): add information for debug print.
+
+Wed Nov 19 04:49:07 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* debug.c (set_debug_option): need the declaration.
+
+	* debug.c (set_debug_option): use the same macro with the implementation
+	  at win32/win32.c.
+
+Wed Nov 19 04:16:24 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (symbol_list): fix the node type of literal symbol list
+	  with no interpolation.  [ruby-core:66343]
+
+Wed Nov 19 00:26:15 2014  Tanaka Akira  <akr@fsij.org>
+
+	* tool/update-deps: Sort dependencies.
+
+Wed Nov 19 00:24:18 2014  Tanaka Akira  <akr@fsij.org>
+
+	* enc/encdb.c: Include internal.h.
+
+Tue Nov 18 23:23:45 2014  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h: Gather declarations in non-header files.
+
+Tue Nov 18 23:45:52 2014  Tanaka Akira  <akr@fsij.org>
+
+	* debug.c (SET_WHEN): Don't declare debug variables here.
+	  ruby_initial_gc_stress_ptr is changed int* to VALUE* at r41406.
+
+	* internal.h (ruby_initial_gc_stress_ptr): Declared.
+	  (ruby_enable_coredump): Ditto.
+
+Tue Nov 18 18:06:43 2014  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/io.h (FMODE_WSPLIT): Removed.  The write() system call
+	  is not required to split.  It was useful to avoid whole process
+	  blocking in Ruby 1.8 but not useful since write() is invoked without
+	  GVL.
+	  (FMODE_WSPLIT_INITIALIZED): Ditto.
+
+	* io.c (wsplit_p): Removed.
+	  (io_writable_length): Removed.
+	  (rb_fcntl): Don't update the removed flags.
+
+Tue Nov 18 03:23:06 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (check_setter_id): show the original argument instead
+	  of nil on TypeError.
+
+Tue Nov 18 03:20:19 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* symbol.h (is_{local,global,instance,attrset,const,class,junk}_sym):
+	  fix ID type names.
+
+Mon Nov 17 20:17:59 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole_event.c: use typed data.
+
+Mon Nov 17 12:54:56 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/rubygems/*, test/rubygems/*: Update to RubyGems 2.4.4
+	  master (2f6e42e).
+
+Mon Nov 17 06:13:06 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (proc_binding): use the original iseq on a binding from
+	  proc from method object to get the location.
+
+Sun Nov 16 19:38:10 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (rb_current_receiver): new function to return the
+	  receiver in the current control frame.  [Feature #10195]
+
+Sun Nov 16 19:11:04 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/timeout.rb (Timeout::ExitException#exception): rescue
+	  UncaughtThrowError which is specific for throw, instead of
+	  ArgumentError.
+
+Sun Nov 16 18:22:18 2014  Eric Wong  <e@80x24.org>
+
+	* tool/update-deps: warning to disable ccache
+
+Sun Nov 16 13:11:35 2014  Tanaka Akira  <akr@fsij.org>
+
+	* common.mk (CCAN_LIST_INCLUDES): Unused variable removed.
+	  (ENCODING_H_INCLUDES): Ditto.
+	  (PROBES_H_INCLUDES): Ditto.
+	  (VM_CORE_H_INCLUDES): Ditto.
+
+Sun Nov 16 11:07:25 2014  Eric Wong  <e@80x24.org>
+
+	* test/ruby/test_io.rb (test_readpartial_locktmp):
+	  remove unnecessary begin/end
+
+Sun Nov 16 00:45:23 2014  Tanaka Akira  <akr@fsij.org>
+
+	* common.mk: Specify dependencies for generated C sources.
+
+Sat Nov 15 23:10:45 2014  Tanaka Akira  <akr@fsij.org>
+
+	* common.mk: No need to declare dependencies which
+	  will be detected by inference rules.
+
+Sat Nov 15 20:34:23 2014  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h: Include ruby.h and ruby/encoding.h to be
+	  includable without prior inclusion.
+
+Sat Nov 15 20:46:44 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_document.rb
+	  (REXMLTests::TestDocument::EntityExpansionLimitTest):
+	  Group tests by general entity and parameter entity.
+
+Sat Nov 15 20:43:31 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_document.rb
+	  (REXMLTests::TestDocument::EntityExpansionLimitTest): Define
+	  test XML in each test method because (1) each XML in used only
+	  one test and (2) related data and code should be close.
+
+Sat Nov 15 20:39:06 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_document.rb
+	  (REXMLTests::TestDocument::EntityExpansionLimitTest): Use
+	  one test method for one test.
+
+Sat Nov 15 20:16:59 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_document.rb
+	  (REXMLTests::TestDocument::EntityExpansionLimitTest): Use
+	  setup and teardown instead of ensure in test.
+
+Sat Nov 15 20:11:34 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_document.rb (REXMLTests::TestDocument): Group
+	  entity expansion limit related tests.
+
+Sat Nov 15 20:09:00 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_document.rb (REXMLTests::TestDocument::BomTest):
+	  Fix wrong parent class. It doesn't need inherit tests in
+	  TestDocument class.
+
+Sat Nov 15 19:48:59 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/mkmf.rb (depend_rules): support comments during a line.
+
+	* lib/mkmf.rb (depend_rules): apply RULE_SUBST even if the dependency
+	  file contains path.
+
+Sat Nov 15 19:25:46 2014  Tanaka Akira  <akr@fsij.org>
+
+	* common.mk: Remove comments in Dependency lines.
+	  Notified by usa.
+
+	* enc/depend: Ditto.
+
+	* ext/**/depend: Ditto.
+
+Sat Nov 15 16:28:05 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (rb_throw_obj): throw UncaughtThrowError instead of
+	  ArgumentError.  [Feature #10480]
+
+Sat Nov 15 14:13:38 2014  Tanaka Akira  <akr@fsij.org>
+
+	* tool/update-deps: Extend to fix dependencies.
+
+	* common.mk: Dependencies updated by tool/update-deps.
+
+	* enc/depend: Ditto.
+
+	* ext/**/depend: Ditto.
+
+Fri Nov 14 17:36:48 2014  Tanaka Akira  <akr@fsij.org>
+
+	* tool/update-deps: Support GNU Make 4.0.
+
+Fri Nov 14 16:59:53 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (default_proc_for_compat_func): check arguments number and
+	  type, and get rid of reentering this default proc.
+
+Fri Nov 14 16:33:06 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_stat_internal): support compatible layer for
+	  GC.stat(symbol) type access.
+
+Fri Nov 14 16:19:08 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_stat_internal): add compatible layer.
+	  From Ruby 2.2, keys of GC.stat are changed [Feature #9924].
+	  To provide compatible layer, GC.stat add a default_proc
+	  (if default_proc of given Hash object is not set).
+
+	  At first use of this compatible layer of interpreter process,
+	  show a warning message like that:
+	  program: GC.stat[:total_allocated_object]
+	  warning message: "warning: GC.stat keys were changed from Ruby
+	  2.1. In this case, you refer to obsolete `total_allocated_object'
+	  (new key is `total_allocated_objects').
+	  Please check <https://bugs.ruby-lang.org/issues/9924>
+	  for more information."
+
+	  Please correct my English message :)
+
+	* hash.c (rb_hash_set_default_proc): export (in internal).
+
+	* internal.h: ditto.
+
+Fri Nov 14 10:41:25 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: guard by #if/#endif with GC_ENABLE_INCREMENTAL_MARK
+	  to hide unused codes.
+
+	* gc.c: similar to GC_ENABLE_LAZY_SWEEP.
+
+Fri Nov 14 10:23:35 2014  Eric Wong  <e@80x24.org>
+
+	* vm_eval.c (rb_eval_cmd): use pre-defined idCall
+
+Fri Nov 14 09:25:44 2014  Eric Wong  <e@80x24.org>
+
+	* vm_eval.c (rb_yield_splat): add missing GC guard
+	  [Bug #10509]
+
+Fri Nov 14 08:12:40 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* gc.c: fix build error caused by implicit conversion with clang.
+
+Fri Nov 14 06:54:06 2014  Eric Wong  <e@80x24.org>
+
+	* insns.def (opt_succ): remove Time#succ optimization
+	  [Feature #10501]
+
+Fri Nov 14 05:29:46 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: refactoring.
+
+	* gc.c: use GC_ENABLE_INCREMENTAL_MARK instead of USE_RINCGC.
+
+	* gc.c (gc_start): check FORCE_MAJOR_GC.
+
+Fri Nov 14 04:51:18 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: Tuning RincGC parameters.
+
+	  Before this patch, gc_marks_step() marks (white -> grey) fixed
+	  number objects. However, this strategy does not fit practical
+	  cases, for example too slow to make progress.
+
+	  This patch changes this strategy how many objects the
+	  gc_marks_step() should handle.
+
+	  We can estimate how many times gc_marks_step() is called during
+	  this major marking (== C) with the free slot number in pooled
+	  pages. We also can estimate the living object number (== L)
+	  using last marked_slots value. We can solve this problem (how
+	  many objects should be process in gc_marks_step()) by L/C.
+
+	* gc.c (rb_objspace_t): add rb_objspace_t::rincgc::pooled_slots and
+	  step_slots.
+
+Fri Nov 14 01:26:47 2014  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/imap.rb (search_response): parse MODSEQ in SEARCH
+	  responses properly.  [ruby-core:64203] [Bug #10112]
+
+Fri Nov 14 01:03:17 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/envutil.rb: Moved from test/ruby/.
+
+	* test/lib/find_executable.rb: Ditto.
+
+	* test/lib/memory_status.rb: Ditto.
+
+	* test/lib/test/unit.rb: require envutil.
+
+	* test/: Don't require envutil in test files.
+
+Thu Nov 13 21:59:58 2014  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* lib/rexml/document.rb: add REXML::Document#document.
+	  reported by Tomas Hoger <thoger@redhat.com> and patched by nahi.
+
+Thu Nov 13 21:51:56 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/monitor/test_monitor.rb: Use assert_join_threads.
+
+Thu Nov 13 21:45:13 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/openssl: Don't specify port number.
+
+Thu Nov 13 21:22:35 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/openssl/ssl_server.rb: Unused file removed.
+	  It is not used since r16111, Ruby 1.9.1.
+
+Thu Nov 13 18:50:14 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval.c (rb_ensure): remove obsolete prot_tag comment.  patch by
+	  Jack Danger at [ruby-core:66238].  [misc #10502]
+
+Thu Nov 13 18:10:38 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm.c (rb_vm_make_proc_lambda): similar to rb_vm_make_proc() with
+	  is_lambda argument.
+
+Thu Nov 13 12:11:18 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_fstat{,i64}): speed up.  adjusting
+	  timestamps in this function is to get rid of the side effect of
+	  ENV["TZ"].  then, if ENV["TZ"] is not set, no need to adjust.
+	  this change makes File#stat about 60% faster.
+
+Thu Nov 13 11:56:12 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* st.c: include "internal.h" for STATIC_ASSERT.
+
+Thu Nov 13 03:56:38 2014  Eric Wong  <e@80x24.org>
+
+	* gc.c (struct heap_page): trivial packing
+	  304 => 296 bytes on x86-64
+
+Wed Nov 12 22:50:12 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* gems/bundled_gems: Update to test-unit 3.0.6 and minitest 5.4.3.
+
+Wed Nov 12 22:30:52 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/rubygems/*: Update to RubyGems 2.4.3 master (7b1f684).
+
+Wed Nov 12 00:26:37 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_object.rb: Specify an exception class for rescue clause.
+
+	* test/dbm/test_dbm.rb: Ditto.
+
+	* test/gdbm/test_gdbm.rb: Ditto.
+
+	* test/sdbm/test_sdbm.rb: Ditto.
+
+Tue Nov 11 23:43:51 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/fileutils/test_fileutils.rb: Use assert_join_threads.
+
+Tue Nov 11 22:51:14 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/resolv/test_dns.rb: Use assert_join_threads.
+
+Tue Nov 11 22:33:08 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/net/pop/test_pop.rb: Use assert_join_threads.
+
+Tue Nov 11 22:07:20 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/net/http/test_https_proxy.rb: Use assert_join_threads.
+
+Tue Nov 11 18:09:11 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* template/prelude.c.tmpl: move from tool/compile_prelude.rb and
+	  expand by generic_erb.rb.
+
+Tue Nov 11 13:01:31 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/rubygems/commands/contents_command.rb (files_in_default_gem):
+	  remove useless sort. show_files will sort the result and
+	  another branch, files_in_gem, doesn't sort.
+	  it should be removed for consistency.
+
+	* test/rubygems/test_gem_commands_contents_command.rb
+	  (test_execute_default_gem): adjust the sort algorithm with
+	  Gem::Commands::ContentsCommand#show_files, which sort items
+	  as array of [prefix, basename] not strings.
+
+Tue Nov 11 10:37:09 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* string.c (sym_equal): use rb_obj_equal().
+	  rb_obj_equal() is specially optimized in
+	  opt_eq_func()@vm_insnhelper.c.
+
+	  This fix is made from this discussion:
+	  https://www.omniref.com/ruby/2.1.4/symbols/Symbol/%3D%3D#line=8361.
+
+Tue Nov 11 09:38:55 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/rdoc/known_classes.rb: reverted regression changes of
+	  rdoc known class.
+
+Tue Nov 11 00:21:50 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/net/imap/test_imap.rb: Don't ignore exceptions on server
+	  threads.
+
+Mon Nov 10 23:34:13 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/net/ftp/test_ftp.rb (create_ftp_server): Don't ignore
+	  exceptions on server thread.
+	  Delete read_timeout method call to fix NoMethodError.
+
+Mon Nov 10 20:20:53 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_read): retry with reduced length if cannot to
+	  write any data but no error occurs.
+
+Mon Nov 10 20:04:16 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/webrick/server.rb: Setup shutdown pipe in listen method.
+
+Mon Nov 10 19:37:09 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c, include/win32/win32.h (rb_w32_set_nonblock): new
+	  function to support nonblock-mode of pipes.
+
+	* win32/win32.c (rb_w32_read): nonblock-mode pipe returns ERROR_NO_DATA
+	  if there is no data, but also returns it if remote-end is closed.
+
+	* win32/win32.c (rb_w32_write): if cannot to write any data, it may be
+	  blocking.
+
+	* io.c (rb_io_set_nonblock): use rb_w32_set_nonblock for Windows.
+
+	* ext/io/nonblock/nonblock.c (rb_io_nonblock_set): use ruby's API when
+	  setting nonblock-mode.
+
+	* test/ruby/test_io.rb: test nonblock pipes on Windows.
+
+Mon Nov 10 17:24:34 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/etc/etc.c (etc_getlogin): set login name encoding properly.
+	  [ruby-core:66163] [Bug #10493]
+
+Mon Nov 10 16:20:42 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/rubygems/*.rb: Update to RubyGems master(3e36528).
+
+Mon Nov 10 16:09:43 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* signal.c (rb_f_kill): [DOC] mention known signal list.
+	  [ruby-core:66162] [Bug #10492]
+
+Mon Nov 10 14:17:58 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/rdoc/*.rb: Update to RDoc 4.2.0.alpha(579a11c)
+
+Mon Nov 10 12:44:39 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/webrick/server.rb: Less instance variables.
+
+Mon Nov 10 12:19:43 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/webrick/server.rb (shutdown): Use close() on @shutdown_pipe_w to
+	  notify readability on the read side of the pipe.
+	  write_nonblock() is not usable for pipe on Windows.
+	  (cleanup_shutdown_pipe): Rescue IOError for @shutdown_pipe_w.close.
+
+Mon Nov 10 07:31:59 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/webrick/server.rb (initialize): Initialize shutdown pipe here
+	  to avoid race condition.
+	  (cleanup_shutdown_pipe): New private method.
+	  (cleanup_listener): Extracted from shutdown method.
+	  Call this method from start method to avoid race condition.
+
+Mon Nov 10 05:57:53 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/webrick/webrick.cgi: Don't use debug mode.
+
+	* test/webrick/webrick_long_filename.cgi: Ditto.
+
+Sun Nov  9 23:25:49 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (vm_call_super): allow bound proc method to call super
+	  method.
+
+	* vm_insnhelper.c (vm_yield_with_cfunc): push defined class and
+	  bound proc method entry to the control frame.
+
+Sun Nov  9 22:46:13 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/open-uri: Test server log in server thread.
+
+	* test/webrick: Ditto.
+
+Sun Nov  9 22:28:34 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/webrick/httpstatus.rb: require webrick/accesslog for AccessLog.
+
+Sun Nov  9 21:03:59 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/webrick: Fix the argument order of assert_equal.
+
+Sun Nov  9 20:29:01 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/webrick: Store log in an array.
+
+	* test/net/http: Ditto.
+
+	* test/open-uri: Ditto.
+
+Sun Nov  9 18:35:36 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/xmlrpc: Refine log test.
+
+Sun Nov  9 18:33:33 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize/normalize.rb: Replaced if-else by
+	  case in self.normalized? in parallel to r48309.
+
+Sun Nov  9 18:07:00 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/xmlrpc: Use assert_join_threads.
+
+Sun Nov  9 14:06:13 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/xmlrpc: Test webrick error log is empty.
+
+Sun Nov  9 13:47:02 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (is_incremental_marking): use #if/#else because
+	  rb_objspace_t::flags::during_incremental_marking is not defined
+	  when GC_ENABLE_INCREMENTAL_MARK is 0.
+
+	* gc.c (will_be_incremental_marking, is_full_marking): similar fix.
+
+Sun Nov  9 12:16:22 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/securerandom.rb (SecureRandom.gen_random): separate
+	  implementation details and select at the load time.
+
+Sun Nov  9 12:09:38 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/win32/lib/win32/registry.rb (Win32::Registry::API#Enum{Value,Key):
+	  ditto.
+
+Sun Nov  9 11:48:40 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/net/http: Examine webrick log.
+
+Sun Nov  9 11:45:19 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* gems/bundled_gems: upgraded to test-unit 3.0.5.
+
+Sun Nov  9 11:40:50 2014  Tanaka Akira  <akr@fsij.org>
+
+	* defs/known_errors.def: More errors for FreeBSD.
+
+Sun Nov  9 11:25:11 2014  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* gems/bundled_gems: upgraded to power_assert 0.2.0.
+
+Sun Nov  9 10:31:03 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/securerandom.rb: set the script encoding to make a string
+	  literal in SecureRandom::Kernel32.last_error_message single byte
+	  encoding so msg[] works in bytes, since FormatMessage() returns
+	  the size in TCHARs, not in characters.
+
+Sun Nov  9 09:50:22 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/webrick: Refine log tests.
+
+Sun Nov  9 08:58:05 2014  Tanaka Akira  <akr@fsij.org>
+
+	* defs/known_errors.def (EHWPOISON): New errno symbol.
+	  It is defined by glibc-2.16.
+
+Sun Nov  9 05:00:23 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/securerandom.rb (initialize): call the special method for Win32
+	  before checking `/dev/urandom` because we know windows doesn't have it.
+
+Sun Nov  9 04:01:46 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/securerandom.rb (SecureRandom::AdvApi32): split from `initialize`.
+	  thanks @zzak to remember it.
+
+Sun Nov  9 02:05:33 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/net/http/utils.rb: Don't connect to spawned server
+	  before actual test.
+
+Sun Nov  9 01:51:50 2014  Benoit Daloze  <eregontp@gmail.com>
+
+	* object.c (Module#const_defined?): [DOC] Revise the documentation.
+	  Patch by Xavier Noria.
+	  [Fixes GH-754] https://github.com/ruby/ruby/pull/754
+
+Sun Nov  9 00:37:44 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/webrick: Examine log and use assert_join_threads.
+
+Fri Nov  7 00:00:12 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* template/unicode_norm_gen.tmpl: expand kompatible_table so that
+	  recursive expansion is not needed at runtime.
+
+Thu Nov  6 23:58:40 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* pack.c (pack_pack): escape unprintable characters and preserve
+	  the encoding of warning message.
+
+Thu Nov  6 23:55:18 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (sym_printable): QUOTE() should not raise an exception
+	  even on invalid byte sequence.
+
+Thu Nov  6 21:44:36 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/test_unicode_normalize.rb: Rename TestNormalize to
+	  TestUnicodeNormalize.
+	  Define constants under TestUnicodeNormalize.
+
+Thu Nov  6 21:22:59 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/open-uri/test_open-uri.rb: Check empty webrick log.
+
+Thu Nov  6 19:27:34 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* re.c (unescape_nonascii): cast -1 for the case char is unsigned char.
+	  If char is signed char, for example gcc for ARM or ppc64, it caused
+	  infinite loop.
+	  http://kmuto.jp/build-ruby/arm/ruby-trunk/log/20141106T013005Z.fail.html.gz
+	  http://rubyci.blob.core.windows.net/f19p8/ruby-trunk/log/20141106T090217Z.fail.html.gz
+
+Thu Nov  6 09:53:18 2014  Eric Wong  <e@80x24.org>
+
+	* lib/uri/rfc2396_parser.rb (initialize): reduce bytecode size
+	  2088 => 1332 bytes on 32-bit x86
+
+Thu Nov  6 08:49:49 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize/normalize.rb: Comment clarification.
+
+Wed Nov  5 23:43:24 2014  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* compile.c (compile_data_alloc): add padding when strict alignment
+	  is required for memory access. Currently, the padding is enabled
+	  only when the CPU is 32-bit SPARC and the compiler is GCC.
+	  [Bug #9681] [ruby-core:61715]
+
+	* compile.c (STRICT_ALIGNMENT): defined if strict alignment is required
+
+	* compile.c (ALIGNMENT_SIZE, ALIGNMENT_SIZE_MASK, PADDING_SIZE_MAX):
+	  new macros for alignment word size, bit mask, max size of padding.
+
+	* compile.c (calc_padding): new function to calculate padding size.
+
+Wed Nov  5 23:24:45 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/open-uri/test_open-uri.rb: Don't ignore webrick's log.
+
+Wed Nov  5 19:20:08 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/webrick/server.rb: Stop listener loop properly.
+	  [ruby-core:66085] [Bug #10478] Fixed by Charles Nutter.
+
+Wed Nov  5 17:20:29 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/intern.h (rb_disable_super, rb_enable_super): warn
+	  as deprecated at build time, instead of ignoring silently or
+	  warning at runtime only.
+
+Wed Nov  5 16:55:52 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (rb_f_lambda): remove deprecated function, which has been
+	  unavailable from extension libraries.
+
+Wed Nov  5 16:26:58 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/intern.h (rb_clear_cache): mark as deprecated, not
+	  only warnings at runtime.
+
+Wed Nov  5 15:05:12 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_{,l,r}strip_bang): rb_str_subseq() will not
+	  NUL-terminate the result string, in the future, so it will not
+	  be needed in other cases.
+
+Wed Nov  5 14:11:30 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (lib/unicode_normalize/tables.rb): do nothing unless
+	  BASERUBY is available.  MINIRUBY cannot load extension libraries,
+	  so cannot update Unicode data.
+
+Wed Nov  5 12:13:54 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_lstrip, rb_str_strip): reduce memory copy by
+	  copying necessary part only.
+
+	* string.c (rb_str_strip_bang, rb_str_strip): ditto.
+
+Wed Nov  5 12:13:48 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_lstrip, rb_str_strip): reduce memory copy by
+	  copying necessary part only.
+
+	* string.c (rb_str_strip_bang, rb_str_strip): ditto.
+
+Wed Nov  5 10:54:19 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_lstrip_bang, rb_str_rstrip_bang): terminate
+	  wchar strings with wchar 0.
+
+Tue Nov  4 21:23:22 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/win32/lib/Win32API.rb: Fiddle::Importer is defined in
+	  fiddle/import.rb and it's not loaded implicitly.
+
+	* ext/win32/lib/Win32API.rb (Win32API#initialize): `import` is a string.
+
+	* ext/win32/lib/Win32API.rb (Win32API#initialize):
+	  Fiddle::Importer::CALL_TYPE_TO_ABI is private constant.
+
+Tue Nov  4 21:20:07 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/securerandom.rb (SecureRandom.random_bytes): use fiddle directly
+	  instead of using Win32API.
+
+Tue Nov  4 21:04:30 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/rubygems/test_gem_request_set_lockfile.rb
+	  (test_relative_path_from): driveletter support.
+
+Tue Nov  4 16:23:57 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/rubygems/test_gem_remote_fetcher.rb (RemoteFetcherCleanup):
+	  close all pooled connections for each tests to fix leaked file
+	  descriptors.
+
+Tue Nov  4 12:51:31 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (PRIsVALUE), vsnprintf.c (BSD_vfprintf): add
+	  RUBY_PRI_VALUE_MARK to reduce danger of accidental conflict with
+	  plain "%i".  binary incompatible with extension libraries using
+	  PRIsVALUE and built for 2.1 and earlier.  [EXPERIMENTAL]
+
+Tue Nov  4 12:33:44 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* object.c: fix document of Kernel#String by @suzukaze
+	  [fix GH-743][ci skip]
+
+Tue Nov  4 12:21:45 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/csv.rb: added documentation for skip_blanks option by @decasia
+	  [fix GH-744][ci skip]
+
+Tue Nov  4 12:09:18 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/open3.rb: fix code formatting in documentation by @JoshCheek
+	  [fix GH-747][ci skip]
+
+Tue Nov  4 08:57:37 2014  Eric Wong  <e@80x24.org>
+
+	* encoding.c (enc_memsize): remove unnecessary function
+	  [ruby-core:65304]
+
+Mon Nov  3 18:09:39 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/openssl/utils.rb: The default of :ignore_listener_error is
+	  changed to false.
+
+Mon Nov  3 14:42:37 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* iseq.c (iseq_free): resolve memory leak.
+
+Mon Nov  3 13:49:18 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* iseq.c (iseq_memsize): catch up recent changes.
+
+Mon Nov  3 13:38:28 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h: change semantics of opt_num and opt_table.
+	  `opt_num' was the number of optional parameters + 1.
+	  `opt_table' has "opt_num" entries.
+
+	  Change them to:
+	  `opt_num' is the number of optional parameters.
+	  `opt_table' has "opt_num + 1" entries.
+
+	  This change simplify parameter fitting logics.
+
+	* compile.c: catch up this change.
+
+	* iseq.c: ditto.
+
+	* proc.c: ditto.
+
+	* vm_args.c: ditto.
+
+Mon Nov  3 11:47:44 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* NEWS: added period into Matrix section. [ci skip]
+	  [misc #10446][ruby-core:65987]
+
+Mon Nov  3 09:43:30 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* vm_args.c: fixed build error with clang
+
+Mon Nov  3 09:32:46 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/rfc3986_parser.rb (URI::RFC3986_Parser::RFC3986_URI):
+	  allow '[' and ']' for URI input (and escape). [Bug #10402]
+
+	* lib/uri/generic.rb (URI#query=): escape '[', '\', and ']'.
+
+Mon Nov  3 07:49:34 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h: change iseq parameter data structure.
+	  https://bugs.ruby-lang.org/issues/10440#change-49694
+
+	  * change terminology `arg' to `param'.
+	  * move rb_iseq_t::arg_* to rb_iseq_t::param.
+	  * move rb_iseq_t::arg_size to rb_iseq_t::param::size.
+	  * move rb_iseq_t::argc to rb_iseq_t::param::lead_num.
+	  * move rb_iseq_t::arg_opts to rb_iseq_t::param::opt_num.
+	  * move rb_iseq_t::arg_rest to rb_iseq_t::param::rest_start.
+	  * move rb_iseq_t::arg_post_num to rb_iseq_t::param::post_num.
+	  * move rb_iseq_t::arg_post_start to rb_iseq_t::param::post_start.
+	  * move rb_iseq_t::arg_block to rb_iseq_t::param::block_start.
+	  * move rb_iseq_t::arg_keyword* to rb_iseq_t::param::keyword.
+	    rb_iseq_t::param::keyword is allocated only when keyword
+	    parameters are available.
+	  * introduce rb_iseq_t::param::flags to represent parameter
+	    availability. For example, rb_iseq_t::param::flags::has_kw
+	    represents that this iseq has keyword parameters and
+	    rb_iseq_t::param::keyword is allocated.
+	    We don't need to compare with -1 to check availability.
+	  * remove rb_iseq_t::arg_simple.
+
+	* compile.c: catch up this change.
+
+	* iseq.c: ditto.
+
+	* proc.c: ditto.
+
+	* vm.c, vm_args.c, vm_dump.c, vm_insnhelper.c: ditto.
+
+	* iseq.c (iseq_data_to_ary): support keyword argument.
+
+Mon Nov  3 03:39:04 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_method.rb: r48239 makes this test green.
+
+Mon Nov 03 03:02:38 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* rewrite method/block parameter fitting logic to optimize
+	  keyword arguments/parameters and a splat argument.
+	  [Feature #10440] (Details are described in this ticket)
+
+	  Most of complex part is moved to vm_args.c.
+
+	  Now, ISeq#to_a does not catch up new instruction format.
+
+	* vm_core.h: change iseq data structures.
+
+	  * introduce rb_call_info_kw_arg_t to represent keyword arguments.
+	  * add rb_call_info_t::kw_arg.
+	  * rename rb_iseq_t::arg_post_len to rb_iseq_t::arg_post_num.
+	  * rename rb_iseq_t::arg_keywords to arg_keyword_num.
+	  * rename rb_iseq_t::arg_keyword to rb_iseq_t::arg_keyword_bits.
+	    to represent keyword bitmap parameter index.
+	    This bitmap parameter shows that which keyword parameters are given
+	    or not given (0 for given).
+	    It is referred by `checkkeyword' instruction described bellow.
+	  * rename rb_iseq_t::arg_keyword_check to rb_iseq_t::arg_keyword_rest
+	    to represent keyword rest parameter index.
+	  * add rb_iseq_t::arg_keyword_default_values to represent default
+	    keyword values.
+	  * rename VM_CALL_ARGS_SKIP_SETUP to VM_CALL_ARGS_SIMPLE
+	    to represent
+	      (ci->flag & (SPLAT|BLOCKARG)) &&
+	      ci->blockiseq == NULL &&
+	      ci->kw_arg == NULL.
+
+	* vm_insnhelper.c, vm_args.c: rewrite with refactoring.
+
+	  * rewrite splat argument code.
+	  * rewrite keyword arguments/parameters code.
+	  * merge method and block parameter fitting code into one code base.
+
+	* vm.c, vm_eval.c: catch up these changes.
+
+	* compile.c (new_callinfo): callinfo requires kw_arg parameter.
+
+	* compile.c (compile_array_): check the last argument Hash object or
+	  not. If Hash object and all keys are Symbol literals, they are
+	  compiled to keyword arguments.
+
+	* insns.def (checkkeyword): add new instruction.
+	  This instruction check the availability of corresponding keyword.
+
+	  For example, a method "def foo k1: 'v1'; end" is compiled to the
+	  following instructions.
+
+	    0000 checkkeyword     2, 0  # check k1 is given.
+	    0003 branchif         9     # if given, jump to address #9
+	    0005 putstring        "v1"
+	    0007 setlocal_OP__WC__0 3   # k1 = 'v1'
+	    0009 trace            8
+	    0011 putnil
+	    0012 trace            16
+	    0014 leave
+
+	* insns.def (opt_send_simple): removed and add new instruction
+	  "opt_send_without_block".
+
+	* parse.y (new_args_tail_gen): reorder variables.
+	  Before this patch, a method "def foo(k1: 1, kr1:, k2: 2, **krest, &b)"
+	  has parameter variables "k1, kr1, k2, &b, internal_id, krest",
+	  but this patch reorders to "kr1, k1, k2, internal_id, krest, &b".
+	  (locate a block variable at last)
+
+	* parse.y (vtable_pop): added.
+	  This function remove latest `n' variables from vtable.
+
+	* iseq.c: catch up iseq data changes.
+
+	* proc.c: ditto.
+
+	* class.c (keyword_error): export as rb_keyword_error().
+
+	* common.mk: depend vm_args.c for vm.o.
+
+	* hash.c (rb_hash_has_key): export.
+
+	* internal.h: ditto.
+
+Mon Nov  3 02:35:32 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* sample/simple-bench.rb: added to measure performance of simple
+	  lines.
+
+Mon Nov  3 02:33:43 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (obj_info): show T_STRING more details.
+
+Sun Nov  2 01:30:32 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/openssl/test_ssl.rb: Don't ignore errors on listener threads,
+	  as much as possible.
+
+	* test/openssl/test_ssl_session.rb: Ditto.
+
+	* test/openssl/test_partial_record_read.rb: Ditto.
+
+Sat Nov  1 23:11:05 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/openssl/utils.rb (start_server): Don't close sockets before
+	  threads finished.
+
+Sat Nov  1 22:06:24 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/openssl/test_ssl_session.rb (test_ctx_client_session_cb): Don't
+	  ignore errors of SSL accept.
+	  (test_ctx_server_session_cb): Ditto.
+
+	* test/openssl/utils.rb (server_loop): Add ignore_ssl_accept_error
+	  argument.
+	  (start_server): Refine threads waits.
+
+	* test/ruby/envutil.rb (assert_join_threads): Show a thread before
+	  backtrace.
+
+Sat Nov  1 20:40:18 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/openssl/utils.rb (start_server, server_loop): Use a
+	  pipe to stop server instead of shutdown/close a listening socket.
+
+Sat Nov  1 19:24:59 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/envutil.rb (assert_join_threads): New assertion to
+	  join multiple threads without exceptions.
+
+Sat Nov  1 17:09:32 2014  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (bary_mul_balance_with_mulfunc): Fix free work area
+	  location.
+	  [ruby-dev:48723] [Bug #10464]
+	  [ruby-core:66044] [Bug #10465]
+	  Reported by Kohji Nishihama.
+
+Sat Nov  1 15:45:15 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parse_atmark): mere atmark and two atmarks without
+	  succeeding identifiers are invalid as instance/class variable
+	  names.
+
+Sat Nov  1 06:31:41 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole_variant.c: use typed data.
+
+Fri Oct 31 13:55:28 2014  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/dl/*: remove DL as it is replaced by Fiddle.
+	  [Feature #5458] Thanks to Jonan Scheffler <jonanscheffler@gmail.com>
+	  for this patch
+
+	* test/dl/*: ditto.
+
+Fri Oct 31 15:26:02 2014  Charles Oliver Nutter  <headius@headius.com>
+
+	* test/openssl/test_ssl.rb: Add certificate verification chain
+	  test from JRuby community.
+
+Fri Oct 31 18:58:02 2014  Charles Oliver Nutter  <headius@headius.com>
+
+	* test/psych/test_emitter.rb: Fix line_width test...initial value
+	  is impl-specific and attr assignment always returns LHS.
+
+Fri Oct 31 22:19:30 2014  Akinori MUSHA  <knu@iDaemons.org>
+
+	* ext/digest/lib/digest.rb (Digest()): This function should now be
+	  thread-safe.  If you have a problem with regard to on-demand
+	  loading under a multi-threaded environment, preload "digest/*"
+	  modules on boot or use this method instead of directly
+	  referencing Digest::*. [Bug #9494]
+	  cf. https://github.com/aws/aws-sdk-ruby/issues/525
+
+Fri Oct 31 21:33:17 2014  Akinori MUSHA  <knu@iDaemons.org>
+
+	* test/digest/test_digest.rb: Drop #!.  This no longer runs
+	  stand-alone because it depends on ruby/envutil.
+
+Fri Oct 31 17:22:19 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/setup.mak: $(APPEND) with some arguments insert a space before
+	  the arguments, so it causes error if the arguments are expected to be
+	  a macro definition.  this fix resolve the build error introduced at
+	  r48210.
+
+Fri Oct 31 16:47:35 2014  Akinori MUSHA  <knu@iDaemons.org>
+
+	* ext/syslog/lib/syslog/logger.rb (Syslog::Logger::VERSION): Bump
+	  the VERSION to 2.1.0. [ruby-core:64483] [Bug #10159]
+
+Fri Oct 31 16:33:46 2014  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/net/imap.rb (Net::IMAP#fetch): [DOC] Document that
+	  Net::IMAP#fetch will return nil instead of an empty array.
+
+Fri Oct 31 12:54:43 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (.unicode-tables.time): needs Unicode files always,
+	  and should update after downloading these files.
+	  [ruby-core:66026] [Bug #10461]
+
+Fri Oct 31 10:16:42 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* .travis.yml: reverted r48199, it's unrelated configuration.
+
+Fri Oct 31 09:58:14 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/test_unicode_normalize.rb: added unicode version number to
+	  test data location.
+
+Fri Oct 31 09:56:41 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* .gitignore: ignored unicode data with version directories.
+
+Fri Oct 31 09:35:30 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* .travis.yml: tweak build scripts for unicode_normalize.rb.
+
+Thu Oct 30 18:47:04 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* common.mk: fix for the case ALWAYS_UPDATE_UNICODE=no
+
+Thu Oct 30 13:23:23 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* tool/downloader.rb: changed Unicode data download location
+	  from latest Unicode version to Unicode 7.0.0.
+
+Thu Oct 30 11:16:13 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_callee_setup_arg{_complex,}): try conversion
+	  by to_ary for a lambda, as well as a proc.
+	  [ruby-core:65887] [Bug #9605]
+
+Wed Oct 29 21:13:23 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (gettable_gen): warn circular argument reference, for
+	  transition from 2.1 and earlier.  [ruby-core:65990] [Bug #10314]
+
+Wed Oct 29 20:41:01 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_params): remove unused member `cur_mid`.
+	  this has been taken over by `in_def` since 1.6.
+
+Wed Oct 29 14:44:27 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* load.c (rb_f_load): path name needs to be transcoded to OS path
+	  encoding.  [ruby-list:49994]
+
+Wed Oct 29 11:48:23 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (__builtin_setjmp): disable with gcc/clang earlier
+	  than 4.3 on Mac OS X.  [ruby-core:65174] [Bug #10272]
+
+Wed Oct 29 11:43:43 2014  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb: Generalize Vector#cross_product to arbitrary
+	  dimensions
+	  based on a patch by gogo tanaka [#10074]
+
+Wed Oct 29 11:43:11 2014  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb: Add Matrix#adjucate
+	  patch by gogo tanaka [#10056]
+
+Wed Oct 29 11:42:33 2014  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb: Add aliases for Vector#cross & dot
+	  patch by gogo tanaka [#10352]
+
+Wed Oct 29 10:00:18 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* gems/bundled_gems: Update latest version of bundled gems.
+
+Tue Oct 28 16:52:07 2014  Eric Wong  <e@80x24.org>
+
+	* signal.c (install_sighandler): remove rb_disable_interrupt and
+	  rb_enable_interrupt calls
+	  (init_sigchld): ditto
+	  (Init_signal): disable and enable interrupt once around all
+	  install_sighandler and init_sigchld to reduce syscalls at start
+	  [Feature #9345] [ruby-core:59480]
+
+Tue Oct 28 16:22:41 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ruby.c (process_options, load_file_internal2): should not
+	  require other files when dump option is given.
+	  [ruby-dev:48712] [Bug #10435]
+
+Tue Oct 28 14:51:38 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: remove apple-gcc4.2 from CC candidates.
+
+Mon Oct 27 20:13:37 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/rexml/entity.rb: keep the entity size within the limitation.
+	  reported by Willis Vandevanter <will@silentrobots.com> and
+	  patched by nahi.
+
+Mon Oct 27 17:17:24 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (method_proc): the receiver of binding from method should
+	  be same as the receiver of the method.
+	  [ruby-core:65917] [Bug #10432]
+
+Mon Oct 27 16:26:37 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_super.rb: add a test to check block passing.
+
+Mon Oct 27 15:59:26 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: is_incremental_marking(), will_be_incremental_marking():
+	  use `&&' with GC_ENABLE_INCREMENTAL_MARK instead of using
+	  #if/#else/#endif.
+
+Mon Oct 27 13:40:11 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (gc_sweep_rest): sweep rest pages regardless of whether
+	  lazy sweep is enabled or not.  based on the patch by Masahiro
+	  Ide at [ruby-dev:48706].  [Bug #10431]
+
+Mon Oct 27 11:18:32 2014  Eric Wong  <e@80x24.org>
+
+	* test/ruby/test_process.rb (test_deadlock_by_signal_at_forking):
+	  reduce garbage during forks
+
+Sun Oct 25 12:26:26 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* template/insns.inc.tmpl, insns_info.inc.tmpl, known_errors.inc.tmpl,
+	  minsns.inc.tmpl: fixed path of generating script.
+
+Sun Oct 26 12:24:15 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/ripper/lib/ripper/sexp.rb (Ripper.sexp, Ripper.sexp_raw):
+	  return nil on error.  [ruby-dev:48678] [Bug #10405]
+
+Sun Oct 25 11:24:24 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* string.c: improved comment.
+
+Sun Oct 26 07:40:11 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (ole_val2variant, ole_invoke): refactoring.
+	  use ole_variant2variant to convert WIN32OLE_VARIANT object to
+	  VARIANT object.
+
+	* ext/win32ole/win32ole_variant.c: refactoring. add
+	  ole_variant2variant.
+	* ext/win32ole/win32ole_variant.h: ditto.
+
+Sat Oct 25 22:28:17 2014  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (io_binwrite_string): Test writev() failure.
+
+Sat Oct 25 20:19:19 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* test/test-unicode_normalize.rb: added test_us_ascii.
+
+Sat Oct 25 20:09:09 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize/normalize.rb: added US_ASCII
+	  as trivially supported encoding (is always normalized,
+	  and may appear mixed in with UTF-8 or other Unicode
+	  encodings).
+
+Sat Oct 25 20:01:01 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* test/test-unicode_normalize.rb: added
+	  test_raise_exception_for_non_unicode_encoding.
+
+Sat Oct 25 19:30:30 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* test/test-unicode_normalize.rb: removed unused function.
+
+Sat Oct 25 18:41:41 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* template/unicode_norm_gen.tmpl: Adjusted name of generating file.
+
+Fri Oct 24 22:49:42 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_yylex): dispatch newline and space at fluent
+	  interface, so that the following identifier does not include the
+	  space.  [ruby-dev:48684] [Bug #10411]
+
+Fri Oct 24 20:41:36 2014  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* signal.c (check_reserved_signal_): fix write count since r47991.
+
+Thu Oct 23 21:42:54 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (rb_hash_delete): now does not call the block given to
+	  the current method.  [ruby-core:65861] [Bug #10413]
+
+Thu Oct 23 19:13:26 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_method.c (rb_method_entry_make): warn redefinition only for
+	  already defined methods, but not for undefined methods.
+	  [ruby-dev:48691] [Bug #10421]
+
+Thu Oct 23 17:19:04 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/source.rb (REXML::IOSource#encoding_updated): Fix a
+	  bug that can't parse XML correctly when
+	  Encoding.default_internal is different with XML
+	  encoding. REXML::Source converts XML encoding on read. So IO
+	  should not convert XML encoding.
+	  Based on patch by NAKAMURA Usaku.
+	  [ruby-dev:48686] [Bug #10418]
+
+	* test/rexml/test_encoding.rb
+	  (REXMLTests::EncodingTester#test_parse_utf16_with_utf8_default_internal):
+	  Add the for the above case.
+
+Thu Oct 23 16:29:02 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_encoding.rb
+	  (REXMLTests::EncodingTester#test_parse_utf16): Use meaningful
+	  test name. "ticket" in the old test name means the ticket in
+	  REXML's issue tracker. The REXML's issue tracker was gone. So
+	  "ticket" is meaningless.
+
+	* test/rexml/data/ticket_110_utf16.xml: Rename to ...
+	* test/rexml/data/utf16.xml: ... this.
+
+Thu Oct 23 16:18:11 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_encoding.rb
+	  (REXMLTests::EncodingTester#test_ticket_110): Fix expected and
+	  actual order.
+	  Patch by NAKAMURA Usaku. Thanks!!!
+
+Thu Oct 23 10:47:16 2014  Eric Wong  <e@80x24.org>
+
+	* insns.def (getlocal,setlocal): add comment to def/opt_operand.def
+
+Thu Oct 23 10:22:41 2014  Eric Wong  <e@80x24.org>
+
+	* test/ruby/test_process.rb (test_deadlock_by_signal_at_forking):
+	  use IO#wait_readable instead of timeout
+
+Thu Oct 23 10:22:24 2014  Eric Wong  <e@80x24.org>
+
+	* test/ruby/test_process.rb (test_deadlock_by_signal_at_forking):
+	  ensure exit! during fork failure
+
+Thu Oct 23 10:21:21 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* NEWS: Added String#unicode_normalize(|!|d?) [ci skip]
+
+Thu Oct 23 03:41:51 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (unknown_keyword_error): delete expected keywords
+	  directly from raw table, so that the given block is not called.
+	  [ruby-core:65837] [Bug #10413]
+
+Thu Oct 23 02:33:01 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (update-unicode): invert dependency to run every times.
+	  [ruby-core:65842] [Bug #10415]
+
+	* common.mk (after-update): update files under source tree.
+	  [ruby-core:65840] [Bug #10414]
+
+Wed Oct 22 22:38:59 2014  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* ext/openssl/lib/openssl/ssl.rb (DEFAULT_PARAMS): override
+	  options even if OpenSSL::SSL::OP_NO_SSLv3 is not defined.
+	  this is pointed out by Stephen Touset. [ruby-core:65711] [Bug #9424]
+
+Wed Oct 22 21:31:56 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* common.mk (prelude.c): add dependency to LIB_SRCS because
+	  enc/prelude.rb requires lib/unicode_normalize.rb, and it's also
+	  requires lib/unicode_normalize/tables.rb (=LIB_SRCS).
+
+Wed Oct 22 21:09:51 2014  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* configure.in (nacl_cv_cpu_nick): fix typo in PNaCl.
+	  (XCFLAGS) Add -isystem flag to pnacl and nacl-newlib
+	  (CXX): added
+
+	* nacl/GNUmakefile.in (CXX): Added
+	  (PPROGRAM): Use clang++ instead of clang because libnacl_io
+	  depends on c++ std lib.
+
+Wed Oct 22 21:07:32 2014  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* common.mk (build-ext): avoid trying to build dynamic libraries
+	  if configured --with-static-linked-ext.
+
+Wed Oct 22 20:33:33 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* common.mk: Fixed grammar in comment [ci skip]
+
+Wed Oct 22 19:18:18 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* tool/unicode_norm_gen.rb: Fixed escaping of backslash and
+	  double quote ('\\\&' -> "\\\\\\\&"; double quoted string
+	  is needed to make \& mean last match; double double
+	  backslashes are needed because of two layers of escaping).
+
+Wed Oct 22 18:13:29 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/test-unicode_normalize.rb: as often said, ruby is sometimes built
+	  at non-srcdir.
+
+Wed Oct 22 18:12:12 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* test/test-unicode_normalize.rb: Adjusted path for test
+	  data file (now ../enc/unicode/data/NormalizationTest.txt).
+
+Wed Oct 22 18:07:07 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* test/test-unicode_normalize.rb: Removed explicit require,
+	  changed method names, adjusted copyright.
+
+Wed Oct 22 18:00:00 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* test/test-unicode_normalize.rb: Importing from
+	  https://github.com/duerst/eprun/blob/master/test/test_normalize.rb.
+	  (removing trailing whitespace, fixing EOLs and adding EOL property)
+
+Wed Oct 22 08:21:09 2014  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* nacl/pepper_main.c (Instance_DidCreate): mount devfs and rebind fd 0
+	  .. 2 so that stderr goes to the console of the browser.
+
+Wed Oct 22 03:47:43 2014  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* ext/etc/etc.c (etc_nprocessors_affin): maximum "n" should be 16384.
+
+Wed Oct 22 03:37:00 2014  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* ext/etc/etc.c (etc_nprocessors_affin): minor spell fix.
+
+Wed Oct 22 03:33:58 2014  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* ext/etc/etc.c (etc_nprocessors_affin): optimize memory usage a
+	  bit. Typical rubyist never use 8k cpus machine.
+
+Wed Oct 22 00:01:09 2014  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* configure.in (XCFLAGS): Add include path for NaCl libraries.
+	  (XLDFLAGS): ditto.
+	  (NACL_LIB_PATH): new substitution
+
+	* nacl/nacl-config.rb: support NACL_LIB_PATH
+
+	* nacl/package.rb: ditto.
+
+	* nacl/pepper_main.c: replace old implementations with nacl_io.
+
+	* nacl/GNUmakefile.in: link nacl_io to pepper_ruby
+
+	* ruby.c (rb_load_file): remove __attribute__((weak)) because the old
+	  override hack was replaced with nacl_io.
+
+	* file.c (rb_file_load_ok): ditto.
+
+Tue Oct 21 17:32:32 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* common.mk: Adding explicit creation of directory
+	  enc/unicode/data because git doesn't handle empty
+	  directories. [patch by Masahiro Ide, filed with r48073]
+
+Tue Oct 21 17:12:12 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize/tables.rb: Committing to make version
+	  update easier and more predictable, and reducing compilation
+	  time.
+
+Tue Oct 21 15:56:56 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize/normalize.rb: Added comment to point to
+	  relevant portion of Unicode standard for Hangul (de)composition
+	  identifiers and algorithm.
+
+Tue Oct 21 11:49:16 2014  Andreas Schwab  <schwab@suse.de>
+
+	* gc.c (mark_current_machine_context) [__mc68000__]: Update stack
+	  marking.
+	  (rb_gc_mark_machine_stack) [__mc68000__]: Also handle it here.
+
+Mon Oct 20 23:59:38 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* enc/prelude.rb: we sometimes run ruby without library path (especially
+	  for test), so should permit to run ruby if unicode_normalize.rb is
+	  missing.
+
+Mon Oct 20 23:57:58 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* common.mk (lib/unicode_normalize/tables.rb): enable running (n)make
+	  in non-srcdir.
+
+Mon Oct 20 23:58:04 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/downloader.rb: add -a option to always download regardless
+	  existing files.
+
+Mon Oct 20 23:18:18 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/mkmf.rb: no need to convert path separator for COPY because it's
+	  ruby -run cp and it can treat '/' on any platform.
+
+Mon Oct 20 19:54:54 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* config.mk: Added missing data files as targets for
+	  prerequisite update_unicode.
+
+Mon Oct 20 19:06:06 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize.rb: revert r48046. The s in sIndex
+	  is not hungarian notation. The variable name sIndex is
+	  directly taken from the relevant part of the Unicode
+	  Standard, where it is written SIndex and stands for
+	  'syllable index'. See pp. 144/145 of
+	  http://www.unicode.org/versions/Unicode7.0.0/ch03.pdf.
+
+Mon Oct 20 12:46:46 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize.rb: removing unnecessary 'self'.
+
+Mon Oct 20 12:37:37 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize.rb: change method names
+	  in commented-out code. Followup to r48027.
+
+Mon Oct 20 02:23:27 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* variable.c (rb_ivar_get), vm_insnhelper.c (vm_getivar): improve
+	  instance variable retrieval performance by checking ruby_verbose
+	  before call of rb_warning and evaluation of its argument.
+	  [ruby-core:65786] [Feature #10396]
+
+Sun Oct 19 23:31:29 2014  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* lib/unicode_normalize.rb: (unicode_normalize!): change method name.
+	  catch up the method name change at r48014. [Feature #10084]
+
+Sun Oct 19 20:05:58 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* ext/tk/lib/tkextlib/tile/treeview.rb: fix syntax error.
+
+Sun Oct 19 18:39:39 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* enc/prelude.rb: Added automatic loading of
+	  lib/unicode_normalize.rb. This makes sure that all
+	  the methods that are available on String are
+	  available without explicit require.
+
+Sun Oct 19 18:35:35 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize/normalize.rb: Added a missing
+	  file extension in require statement.
+
+Sun Oct 19 18:13:13 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* common.mk: Added a rule to generate
+	  lib/unicode_normalize/tables.rb. This rule still
+	  needs to be integrated into the overall make process.
+
+Sun Oct 19 17:53:53 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize.rb: Changed to dynamic
+	  loading of actual normalization code and tables.
+
+Sun Oct 19 17:37:37 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize.rb: Small documentation fix.
+
+Sun Oct 19 17:26:26 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize.rb: Added documentation.
+
+Sun Oct 19 11:09:09 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* tool/unicode_norm_gen.rb, lib/unicode_normalize.rb:
+	  File name change from lib/unicode_normalize/normalize_tables.rb
+	  to lib/unicode_normalize/tables.rb.
+
+Sun Oct 19 10:12:12 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize.rb: Changing method names, see
+	  https://bugs.ruby-lang.org/issues/10084#note-7
+
+Sun Oct 19 10:10:10 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize.rb: Changing module name.
+
+Sun Oct 19 10:08:08 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize.rb: Changing require statement,
+	  adjusting copyright.
+
+Sun Oct 19 10:04:04 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize.rb: Importing from
+	  https://github.com/duerst/eprun/blob/master/lib/string_normalize.rb.
+	  (removing trailing whitespace, fixing EOLs and adding EOL property)
+
+Sun Oct 19 09:56:56 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* tool/unicode_norm_gen.rb: Changed module name.
+
+Sun Oct 19 09:48:48 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize/normalize.rb: Changed module name,
+	  adjusted copyright.
+
+Sun Oct 19 09:38:38 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize/normalize.rb: Importing from
+	  https://github.com/duerst/eprun/blob/master/lib/normalize.rb.
+
+Sat Oct 18 20:40:52 2014  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm_core.h, proc.c, vm_backtrace.c, vm_trace.c:
+	  remove rb_binding_new_with_cfp, and use rb_vm_make_binding instead.
+
+Sat Oct 18 20:38:48 2014  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm_core.h, vm.c, proc.c: fix GC mark miss on bindings.
+	  [ruby-dev:48616] [Bug #10368]
+
+	* test/ruby/test_eval.rb: add a test code.
+
+Fri Oct 17 22:47:11 2014  Tanaka Akira  <akr@fsij.org>
+
+	* pack.c (pack_unpack): Add casts for char references for 'u'.
+	  Fix line ending recognition algorithm.
+
+Fri Oct 17 21:49:52 2014  Tanaka Akira  <akr@fsij.org>
+
+	* pack.c (pack_unpack): Add casts for char references for 'b' and 'h'.
+
+Fri Oct 17 17:50:10 2014  Tanaka Akira  <akr@fsij.org>
+
+	* Avoid undefined behaviors found by gcc -fsanitize=undefined.
+	  gcc (Debian 4.9.1-16) 4.9.1
+
+	* string.c (rb_str_sum): Avoid undefined behavior.
+
+Fri Oct 17 17:43:50 2014  Tanaka Akira  <akr@fsij.org>
+
+	* Avoid undefined behaviors found by gcc -fsanitize=undefined.
+	  gcc (Debian 4.9.1-16) 4.9.1
+
+	* include/ruby/ruby.h (INT2FIX): Avoid undefined behavior.
+
+	* node.h (nd_set_line): Ditto.
+
+	* pack.c (encodes): Ditto.
+	  (pack_unpack): Ditto.
+
+	* regint.h (BIT_STATUS_AT): Ditto.
+	  (BS_BIT): Ditto.
+
+	* time.c (time_mdump): Ditto.
+	  (time_mload): Ditto.
+
+	* vm_core.h (VM_FRAME_MAGIC_MASK): Ditto.
+
+	* vm_trace.c (recalc_add_ruby_vm_event_flags): Ditto.
+
+Fri Oct 17 15:06:49 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* re.c (unescape_nonascii): make dynamically compiled US-ASCII
+	  regexps ASCII-8BIT encoding if binary (hexadecimal, control,
+	  meta) escapes are contained, as well as literal regexps.
+	  [ruby-dev:48626] [Bug #10382]
+
+Fri Oct 17 03:05:08 2014  Eric Wong  <e@80x24.org>
+
+	* test/-ext-/bug_reporter/test_bug_reporter.rb
+	  (test_bug_reporter_add): revert r47972
+	* test/ruby/test_rubyoptions.rb (test_segv_test): revert r47971
+	  [ruby-core:65764]
+
+Thu Oct 16 23:17:40 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* signal.c (rb_sigaltstack_size): double default size to get rid
+	  of heap corruption by alternate stack overflow in SEGV handler.
+	  typically happened at fprintf() in control_frame_dump().
+
+Thu Oct 16 22:43:12 2014  Tanaka Akira  <akr@fsij.org>
+
+	* vm_backtrace.c (id2str): Fix a variable name.
+	  [ruby-dev:48642] [Bug #10389]
+
+Thu Oct 16 20:01:26 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/envutil.rb (assert_pattern_list): Show number of matched
+	  patterns and characters.
+
+Thu Oct 16 16:26:09 2014  Eric Wong  <e@80x24.org>
+
+	* cont.c (fiber_store): fix WIN32 fibers
+	  [ruby-core:65745] [ruby-core:65758]
+
+Thu Oct 16 15:05:07 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_here_document): do not append already appended
+	  and disposed code fragment.  [ruby-dev:48647] [Bug #10392]
+
+Thu Oct 16 10:35:33 2014  Eric Wong  <e@80x24.org>
+
+	* test/-ext-/bug_reporter/test_bug_reporter.rb
+	  (test_bug_reporter_add): fix race
+
+Thu Oct 16 10:09:02 2014  Eric Wong  <e@80x24.org>
+
+	* test/ruby/test_rubyoptions.rb (test_segv_test): fix race
+
+Thu Oct 16 09:17:48 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* cont.c (rb_fiber_t): fix compile error caused by move to
+	  vm_core.h at r47964.  [Feature #10341]
+
+Thu Oct 16 08:58:11 2014  Eric Wong  <e@80x24.org>
+
+	* test/ruby/test_process.rb (test_deadlock_by_signal_at_forking):
+	  avoid killing wrong parent
+
+Thu Oct 16 08:40:04 2014  Eric Wong  <e@80x24.org>
+
+	* cont.c (fiber_store): restore references to next_fib (fix typo)
+
+Thu Oct 16 08:26:08 2014  Eric Wong  <e@80x24.org>
+
+	* cont.c (fiber_store): remove references to nextfib
+	  fix build when FIBER_USE_NATIVE is 0
+
+Thu Oct 16 06:51:35 2014  Knut Franke  <Knut.Franke@gmx.de>
+
+	* vm_core.h: declare rb_fiber_t typedef
+	  (rb_thread_t): fiber and root_fiber become rb_fiber_t * (from VALUE)
+	* vm.c (rb_thread_mark): use rb_fiber_mark_self
+	* cont.c (rb_fiber_t): prev becomes rb_fiber_t * (from VALUE)
+	  (cont_mark, cont_free): simplify conditions
+	  (rb_fiber_mark_self): new function
+	  (fiber_mark): use rb_fiber_mark_self
+	  (cont_save_thread, cont_restore_thread): inline
+	  (cont_restore_thread): simplify
+	  (fiber_setcontext): simplify conditions
+	  (rb_cont_call): remove dereference
+	  (fiber_t_alloc): update for rb_fiber_t->prev type change
+	  (rb_fiber_start): ditto
+	  (fiber_current): extract from rb_fiber_current
+	  (return_fiber): move, simplify type checks
+	  (rb_fiber_current): use fiber_current
+	  (fiber_store): simplify type checks
+	  (fiber_switch): ditto, simplify call to fiber_setcontext,
+	   use fiber_current
+	  (rb_fiber_transfer): update for type changes
+	  (rb_fiber_terminate): move, use fiber_switch
+	  (rb_fiber_resume): update for type changes
+	  (rb_fiber_reset_root_local_storage): ditto
+	  (rb_fiber_yield): use rb_fiber_switch instead of rb_fiber_transfer
+	  (rb_fiber_m_transfer): ditto
+	  [ruby-core:65518] [Feature #10341]
+
+Thu Oct 16 06:25:29 2014  Knut Franke  <Knut.Franke@gmx.de>
+
+	* cont.c (rb_context_t): comment on saved_thread
+	  (cont_save_thread): sparse copy
+	  (cont_init): copy extra fields
+	  (fiber_init): use current thread VM stack size
+	  [ruby-core:65518] [Feature #10341]
+
+Thu Oct 16 06:13:09 2014  Knut Franke  <Knut.Franke@gmx.de>
+
+	* cont.c (cont_capture): remove unnecessary variable
+	  [ruby-core:65518] [Feature #10341]
+
+Thu Oct 16 05:02:31 2014  Knut Franke  <Knut.Franke@gmx.de>
+
+	* cont.c (fiber_store, fiber_switch): simplify
+	  [ruby-core:65518] [Feature #10341]
+
+Thu Oct 16 04:28:41 2014  Knut Franke  <Knut.Franke@gmx.de>
+
+	* cont.c (rb_fiber_t): remove prev_fiber/next_fiber
+	  (fiber_link_join, fiber_link_remove): remove functions
+	  (fiber_free, fiber_init, root_fiber_alloc):
+	   remove references to removed fields and functions
+	  [ruby-core:65518] [Feature #10341]
+
+Wed Oct 15 22:08:37 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/etc/etc.c (etc_nprocessors_affin): Test CPU_ALLOC availability.
+	  CentOS 5 don't have CPU_ALLOC().
+
+Wed Oct 15 18:26:19 2014  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* ext/etc/etc.c (etc_nprocessors_affinity): use sched_getaffinity
+	  for getting precious number of available cpus.
+
+	* ext/etc/etc.c (etc_nprocessors): use etc_nprocessors_affinity if
+	  possible.
+
+	  [Feature #10267] etc-nprocessors-kosaki2.patch
+
+Wed Oct 15 17:53:28 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/envutil.rb (assert_pattern_list) Renamed from
+	  assert_regexp_list.
+	  Show multiline string in multi lines.
+
+	* test/-ext-/bug_reporter/test_bug_reporter.rb: Use
+	  assert_pattern_list.
+
+Wed Oct 15 12:26:58 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/envutil.rb (assert_regexp_list): New assertion method.
+
+	* test/ruby/test_rubyoptions.rb: Use assert_regexp_list.
+
+Wed Oct 15 07:21:09 2014  Tanaka Akira  <akr@fsij.org>
+
+	* enum.c: min(n) drops elements bigger than the n-th maximum element.
+	  (struct nmin_data): New field to record the n-th maximum element, limit
+	  (nmin_filter): Update limit field.
+	  (nmin_i): Drop too big elements.
+	  (nmin_run): Initialize limit field.
+
+Wed Oct 15 07:00:14 2014  Eric Wong  <e@80x24.org>
+
+	* test/ruby/test_optimization.rb (test_string_size): new test
+
+Wed Oct 15 06:51:13 2014  Eric Wong  <e@80x24.org>
+
+	* test/ruby/test_optimization.rb (test_string_eq_neq): new test
+	  (test_string_ltlt): ditto
+
+Wed Oct 15 06:50:29 2014  Eric Wong  <e@80x24.org>
+
+	* test/ruby/test_optimization.rb (test_hash_aset_with):
+	  assert assignment
+
+Wed Oct 15 04:56:27 2014  Zachary Scott  <e@zzak.io>
+
+	* gc.c (rb_obj_id): [DOC] Fix typo, clean up sentence, and wrap cols
+
+Wed Oct 15 04:53:30 2014  Zachary Scott  <e@zzak.io>
+
+	* error.c: [DOC] Fix case of type in exception message by @tricknotes
+	  [Fixes GH-740] https://github.com/ruby/ruby/pull/740
+
+	* object.c: ditto
+
+Tue Oct 14 21:39:16 2014  Vit Ondruch  <vondruch@redhat.com>
+
+	* tool/rbinstall.rb (gem): Fix permissions of bundled gems
+	  specification files.  [ruby-core:65700] [Bug #10383]
+
+Tue Oct 14 19:15:31 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole_record.c: use typed data.
+
+Tue Oct 14 16:23:12 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* symbol.c (global_symbols): make ids two-dimensional array of
+	  strings and symbols, for write-barrier.
+
+	* symbol.c (global_symbols): make IDs immortal always, instead
+	  of treating dynamic symbols as IDs.
+
+	* iseq.c, marshal.c, string.c: use rb_str_intern instead of
+	  rb_str_dynamic_intern.
+
+	* symbol.c (rb_str_intern): rename rb_str_dynamic_intern.
+
+Tue Oct 14 10:19:10 2014  Eric Wong  <e@80x24.org>
+
+	* test/ruby/test_optimization.rb (test_string_freeze): new test
+	  (test_hash_aref_with): ditto
+	  (test_hash_aset_with): ditto
+
+Tue Oct 14 01:27:54 2014  Tanaka Akira  <akr@fsij.org>
+
+	* enum.c (nmin_run): max(n) and max_by(n) returns an array in
+	  descending order.
+	  [ruby-core:65452] Suggested by David Grayson.
+
+Mon Oct 13 20:44:49 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (update-gems): chdir to the target directory and then
+	  add the tool directory to load paths, for older BASERUBY.
+	  [Bug #10372][ruby-core:65630]
+
+Mon Oct 13 17:53:01 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/xmlrpc/parser.rb: added new parser class using libxml-ruby gem.
+	  [Feature #9379][ruby-core:59633]
+	* lib/xmlrpc/config.rb: ditto.
+
+Mon Oct 13 16:32:56 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/find.rb (Find.find): Call to_path for arguments to obtain
+	  strings.
+	  [ruby-core:63713] [Bug #10035] Reported by Herwin.
+
+Mon Oct 13 15:42:25 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* common.mk: use relative load path for bundled_gems directory.
+	  [Bug #10372][ruby-core:65630]
+
+Mon Oct 13 08:44:06 2014  Zachary Scott  <e@zzak.io>
+
+	* README.EXT: [DOC] fix example missing typedef with patch by
+	  @steveklabnik [Fixes GH-739] https://github.com/ruby/ruby/pull/739
+
+	* README.EXT.ja: ditto.
+
+Mon Oct 13 06:52:09 2014  Eric Wong  <e@80x24.org>
+
+	* array.c (ary_recycle_hash): add RB_GC_GUARD
+	  (rb_ary_diff): remove volatile
+	  [Bug #10369]
+
+Mon Oct 13 03:20:23 2014  Zachary Scott  <e@zzak.io>
+
+	* ext/date/date_core.c: [DOC] Clean up whitespace, examples, and typos
+	  in date_core based on a patch by @vipulnsward [Fixes GH-724]
+	  https://github.com/ruby/ruby/pull/724
+
+Mon Oct 13 02:39:26 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (remove_duplicate_keys): should not simply eliminate all
+	  value nodes, which may have side effects.
+	  [ruby-core:65625] [Bug #10315]
+
+Sun Oct 12 10:39:16 2014  Zachary Scott  <e@zzak.io>
+
+	* vm.c: [DOC] fix typo by @yui-knk [Fixes GH-738]
+	  https://github.com/ruby/ruby/pull/738
+
+Sun Oct 12 09:24:15 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/test/unit.rb: Hide skips by default.
+
+Sun Oct 12 01:37:11 2014  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* file.c: include sys/time.h only if HAVE_SYS_TIME_H
+
+Sat Oct 11 22:29:40 2014  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* file.c (HAVE_UTIMENSAT): disabled for NativeClient.
+	  Fixes build error.
+
+Sat Oct 11 22:11:58 2014  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* ext/extmk.rb: generates the rule for extinit.$(OBJEXT).
+	  extinit.$(OBJEXT) used to be generated by the builtin rule, thus
+	  didn't accept custom $(CC) and caused linkage error for cross
+	  compiling.
+
+Sat Oct 11 18:46:50 2014  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* include/ruby/intern.h (rb_fd_select): declare struct timeval, or the
+	  struct gets local to the function in C99.
+
+	* file.c (#include): add nacl/stat.h for PNaCl.
+	  (utimes): added a declaration for PNaCl.
+	  (stat_atimespec): stat::st_atimensec is long long but
+	  timespec::tv_nsec is long in PNaCl.
+	  (stat_mtimespec, stat_ctimespec): ditto.
+	  (rb_group_member): disable getgroups unless HAVE_GETGROUPS.
+	  (eaccess): unify the fallback to generic defined(USE_GETEUID).
+
+	* io.c: include sys/time.h for struct timeval.
+	  (rb_close_before_exec): nothing we can do if F_GETFD is not
+	  available.
+	  (ioctl): pnacl newlib actually doesn't have ioctl.
+
+	* process.c (maxgroups): it is used iff
+	   defined(_SC_NGROUPS_MAX) || defined(NGROUPS_MAX) but not
+	   defined(HAVE_GETGROUPS) || defined(HAVE_SETGROUPS).
+	  (obj2gid): fail unless the object is a Fixnum if getgrnam is not
+	  available.
+	  (disable_child_handler_fork_child): sigaction is not available in
+	  PNaCl newlib.
+
+	* configure.in (warnflags, strict_warnflags): avoid -ansi for strlcpy.
+	  (rb_cv_gcc_atomic_builtins): also check
+	  __atomic_or_etch because it is used in ruby_atomic.h.
+	  (rb_cv_gcc_sync_builtins): ditto.
+	  (HAVE_GETGRNAM): added.
+
+Sat Oct 11 15:32:08 2014  Eric Wong  <e@80x24.org>
+
+	* compile.c (iseq_build_from_ary_exception): move RB_GC_GUARD
+	  (iseq_build_from_ary_body): use PRIsVALUE instead of RB_GC_GUARD
+
+Sat Oct 11 14:57:08 2014  Eric Wong  <e@80x24.org>
+
+	* string.c (rb_str_intern): remove unnecessary RB_GC_GUARD
+
+Sat Oct 11 13:47:13 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (remove_duplicate_keys): remove duplicate literal keys,
+	  i.e., symbols and strings.  [ruby-core:65368] [Bug #10315]
+
+	* vm.c (kwmerge_i): override existing keys by new keys.
+	  [ruby-core:65368] [Bug #10315]
+
+	* parse.y (assocs): concatenate splatted literal hashes.  the
+	  former key has precedence even if duplicated literal keys
+	  follow.  [ruby-core:65368] [Bug #10315]
+
+Sat Oct 11 12:27:03 2014  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* configure.in (RUBY_NACL): automatically locate pnacl-clang.
+	  (RUBY_PLATFORM): pnacl instead of le32-nacl.
+
+Sat Oct 11 11:27:14 2014  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* io.c: fix issues in the last two commits. don't disable cloexec for
+	  platforms other than NativeClient.
+
+	* ChangeLog: ditto. add entries for the last two commits.
+
+Sat Oct 11 11:12:00 2014  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* signal.c (install_signalhandler, init_sigchld): allow failure because it
+	  always fails with ENOSYS on NaCl.
+
+Sat Oct 11 11:11:53 2014  Yuki Yugui Sonoda  <yugui@yugui.jp>
+
+	* configure.in (RUBY_NACL and others): merge patch from naclports. Supports PNaCl.
+
+	* dln.c: ditto. replace the old hacky dynamic loading over HTTP with nacl_io.
+
+	* file.c: ditto. tentatively use access(2) instead of eaccess.
+	  (rb_file_load_ok): weaken with attribute but not by postprocess.
+
+	* io.c: ditto.
+	  (socket.h): now NaCl has socket.h
+	  (flock): disable here instead of nacl/ioctl.h
+
+	* nacl/GNUmakefile.in: ditto.
+	  (CC, LD, NM, AR, AS, RANLIB, OBJDUMP, OBJCOPY):
+	  respect path to them if they are absolute.
+	  This helps naclports to build ruby in their source tree.
+	  (PROGRAM_NMF, .SUFFIXES): support .pnexe for PNaCl.
+	  (ruby.o, file.o): move the hack to attributes in ruby.c and file.c
+
+	* nacl/ioctl.h: ditto. removed. move the hack to io.c.
+
+	* nacl/nacl-config.rb: ditto. support arm, pnacl and others.
+
+	* nacl/pepper_main.c: ditto. support build in a naclports tree.
+
+	* ruby.c (rb_load_file): ditto. weaken with attribute but not by postprocess.
+
+Sat Oct 11 09:32:00 2014  Zachary Scott  <e@zzak.io>
+
+	* ext/socket/unixsocket.c: [DOC] Fix example to render in HTML
+	  properly, with a patch by @eval [Fixes GH-733]
+	  https://github.com/ruby/ruby/pull/733
+
+Sat Oct 11 04:14:41 2014  Kir Shatrov  <shatrov@me.com>
+
+	* lib/open-uri.rb (OpenURI::Options): add :open_timeout default
+	* (def OpenURI.open_http): check :open_timeout option
+	* (module OpenURI): rdoc for :open_timeout
+	* test/open-uri/test_open-uri.rb (test_open_timeout): new test
+	  [Feature #10361]
+
+Fri Oct 10 11:27:49 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/io.h (rb_io_mode_flags, rb_io_modenum_flags):
+	  deprecate old macros for compatibility for ruby 1.8 and older.
+
+Thu Oct  9 23:31:47 2014  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* bignum.c (absint_numwords_generic): set an array element after
+	  definition of a variable to fix compile error with older version
+	  of fcc (Fujitsu C Compiler) 5.6 on Solaris 10 on Sparc.
+	  [Bug #10350] [ruby-dev:48608]
+
+Thu Oct  9 16:15:26 2014  Eric Wong  <e@80x24.org>
+
+	* ext/-test-/st/foreach/extconf.rb: new file
+	* ext/-test-/st/foreach/foreach.c: ditto
+	* test/-ext-/st/test_foreach.rb: ditto
+	  [Feature #10321]
+
+Thu Oct  9 12:40:28 2014  Eric Wong  <e@80x24.org>
+
+	* benchmark/bm_hash_aref_sym*.rb: force static symbols
+
+Thu Oct  9 12:38:28 2014  Eric Wong  <e@80x24.org>
+
+	* hash.c (rb_any_hash): remove unnecessary dsym check
+
+Thu Oct  9 07:20:30 2014  Rei Odaira  <Rei.Odaira@gmail.com>
+
+	* missing/setproctitle.c: Avoid invalidating argv[1], argv[2],
+	  etc. until the first call to Process.setproctitle, because
+	  the ps command of AIX refers to the argv array.
+	  [Bug #10090]
+
+Thu Oct  9 00:53:15 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (dir_s_aref): fix rdoc.  `Dir.glob` allows an array but
+	  `Dir[]` not.  the former accepts an optional parameter `flags`,
+	  while the latter accepts arbitrary number of arguments but no
+	  `flags`.  [ruby-core:65265] [Bug #10294]
+
+Wed Oct  8 21:44:10 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole_variable.c: use typed data.
+
+Wed Oct  8 16:36:47 2014  gogo tanaka  <mail@tanakakazuki.com>
+
+	* test/ruby/test_syntax.rb: added syntax tests of underscore
+	  arguments.  [Feature #10340][ruby-core:65496]
+
+Wed Oct  8 07:42:39 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/generic.rb (URI#inspect): remove Object id.
+	  URI is considered that it doesn't require id.
+
+Wed Oct  8 05:22:42 2014  Eric Wong  <e@80x24.org>
+
+	* ext/etc/etc.c (etc_systmpdir): set default tmplen correctly
+	  Fixup r47826
+
+Wed Oct  8 05:16:32 2014  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb: Add @- and @+ for Matrix and Vector.
+	  patch by gogo tanaka [#10068] [#10069]
+
+Wed Oct  8 04:58:48 2014  John Bachir  <j@jjb.cc>
+
+	* bootstraptest/test_io.rb (assert_finish):
+	  normalize rescue for Timeout::Error
+	* lib/net/ftp.rb (Net#read_timeout): ditto for doc
+	* lib/resolv.rb (Resolv::ResolvTimeout): ditto for subclass
+	* lib/webrick/httprequest.rb (_read_data): ditto for rescue
+	* sample/timeout.rb (p timeout): ditto for call
+	* test/drb/drbtest.rb (test_06_timeout): ditto
+	* test/ruby/test_readpartial.rb (test_open_pipe): ditto
+	* test/thread/test_queue.rb (test_queue_thread_raise): ditto
+	* thread.c (rb_thread_s_handle_interrupt): ditto for doc
+	  [ruby-core:65481] [misc #10339]
+
+Wed Oct  8 04:38:29 2014  Rei Odaira  <Rei.Odaira@gmail.com>
+
+	* test/ruby/test_process.rb (TestProcess#test_setsid): AIX
+	  does not allow Process::getsid(pid) when pid is in a
+	  different session.
+
+Wed Oct  8 04:33:04 2014  Rei Odaira  <Rei.Odaira@gmail.com>
+
+	* test/ruby/test_rubyoptions.rb (TestRubyOptions#test_encoding):
+	  On AIX, locale_charmap is ISO-8859-1 with LANG=C.  This means
+	  the source encoding of stdin is ISO-8859-1, so "invalid
+	  multibyte char" error does not occur.
+
+Wed Oct  8 04:30:29 2014  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb: Add Matrix#laplace_expansion.
+	  patch by gogo tanaka [#10073]
+
+Wed Oct  8 04:29:21 2014  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb: Add Vector.basis.
+	  Based on patch by gogo tanaka [#10072]
+
+Tue Oct  7 23:40:16 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* signal.c (rb_f_kill): get rid of deadlock as unhandled and
+	  discarded signals do not make interrupt_cond signaled.
+	  based on the patch by Kazuki Tsujimoto at [ruby-dev:48606].
+	  [Bug #9820]
+
+Tue Oct  7 22:43:44 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole_method.c: use typed data.
+
+Tue Oct  7 21:47:05 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole_param.c: refactoring.
+
+Tue Oct  7 21:40:17 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole_method.c: refactoring. add
+	  olemethod_data_get_struct to wrap Data_Get_Struct.
+	* ext/win32ole/win32ole_method.h: ditto.
+
+	* ext/win32ole/win32ole_param.c (oleparam_ole_param):
+	  call olemethod_data_get_struct instead of Data_Get_Struct.
+
+Tue Oct  7 11:17:08 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/etc/etc.c (etc_systmpdir): try user temporary directory by
+	  confstr() on Mac OS X.
+	  c.f. http://www.opensource.apple.com/source/ruby/ruby-104/patches/ext_etc_etc.c.diff
+
+Tue Oct  7 10:48:17 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (struct stat.st_size): prefer off_t over int, long,
+	  and so on.  inspired by
+	  http://www.opensource.apple.com/source/ruby/ruby-104/patches/config.h.ed
+
+Tue Oct  7 10:37:39 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (RUBY_UNIVERSAL_ARCH): fix missing quoting
+	  brackets.  incorporated from
+	  http://www.opensource.apple.com/source/ruby/ruby-104/patches/configure.diff
+
+Mon Oct  6 23:34:42 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole_param.c: use typed data.
+
+Mon Oct  6 22:37:09 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* symbol.h (struct RSymbol): move from internal.h.
+
+Mon Oct  6 21:43:03 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* error.c: update exception tree. [DOC]
+	  reported by @hemge via twitter.
+
+Mon Oct  6 18:43:03 2014  Rei Odaira  <Rei.Odaira@gmail.com>
+
+	* configure.in: Fix typo. [Bug #9914]
+
+Mon Oct  6 16:23:30 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* signal.c (rb_f_kill): should not ignore signal unless the
+	  default handler is registered.  [ruby-dev:48592] [Bug #9820]
+
+Mon Oct  6 16:07:11 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/test_string.rb (test_LSHIFT_neary_long_max): enable
+	  only on platforms where string size range is smaller than memory
+	  space.  this test does not make sense but just wastes memory and
+	  time on other platforms, as it is hardly possible that a string
+	  size becomes neary LONG_MAX if long size equals pointer size.
+	  [ruby-core:65410] [Bug #10325]
+
+Mon Oct  6 11:21:21 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* tool/unicode_norm_gen.rb: Adding/tweaking comments.
+
+Mon Oct  6 10:57:57 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* tool/unicode_norm_gen.rb: Adjusted directory paths.
+
+Mon Oct  6 10:27:27 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* tool/unicode_norm_gen.rb: Data generation script imported from
+	  https://github.com/duerst/eprun/blob/master/lib/generate.rb
+
+Mon Oct  6 10:15:15 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* tool/downloader.rb: Adjust example in documentation for
+	  Downloader.download.
+
+Mon Oct  6 10:07:07 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* lib/unicode_normalize: New folder for Unicode normalization
+	  functionality
+
+Sun Oct  5 11:04:13 2014  Luiz Angelo Daros de Luca  <luizluca@gmail.com>
+
+	* ext/digest/{md5,rmd160,sha1,sha2}/extconf.rb: configure OpenSSL
+	  only if bundled libraries is not used, so that OpenSSL is not
+	  linked unnecessarily.  [ruby-core:65404] [Bug #10324]
+
+Sun Oct  5 10:39:11 2014  Luiz Angelo Daros de Luca  <luizluca@gmail.com>
+
+	* ext/digest/rmd160/extconf.rb: fix transform function name to
+	  check.  [ruby-core:65091] [Bug #10252]
+
+Sun Oct  5 05:46:00 2014  Eric Wong  <e@80x24.org>
+
+	* ext/zlib/zlib.c (zstream_mark, zstream_free): update signature
+	  (gzfile_mark, gzfile_free): ditto
+	  (zstream_memsize): new function for rb_data_type->dsize
+	  (gzfile_memsize): ditto
+	  (zstream_data_type, gzfile_data_type): new data types
+	  (zstream_new): Data_Make_Struct => TypedData_Make_Struct
+	  (gzfile_new): ditto
+	  (get_zstream, get_gzfile): Data_Get_Struct => TypedData_Get_Struct
+	  (rb_zstream_flush_next_in): ditto
+	  (rb_zstream_flush_next_out): ditto
+	  (rb_zstream_avail_out): ditto
+	  (rb_zstream_avail_in): ditto
+	  (rb_zstream_closed_p): ditto
+	  (rb_deflate_initialize): ditto
+	  (rb_deflate_init_copy): ditto
+	  (rb_inflate_initialize): ditto
+	  (gzfile_ensure_close): ditto
+	  (rb_gzfile_closed_p): ditto
+	  (rb_gzfile_path): ditto
+	  (rb_gzwriter_initialize): ditto
+	  (rb_gzreader_initialize): ditto
+	  (rb_gzreader_unused): ditto
+	  [ruby-core:65377] [Feature #10319]
+
+Sat Oct  4 16:24:41 2014  Rei Odaira  <Rei.Odaira@gmail.com>
+
+	* test/test_syslog.rb (TestSyslog#test_log): In AIX, each output
+	  line of LOG_PERROR to stderr has an additional empty line appended,
+	  so skip that line.
+
+Sat Oct  4 16:05:49 2014  Rei Odaira  <Rei.Odaira@gmail.com>
+
+	* test/socket/test_unix.rb (TestSocket_UNIXSocket#test_too_long_path):
+	  sockaddr_un.sun_path in AIX is defined as char[1024],
+	  so "a" * 300 is not too long. "a" * 3000 would be enough.
+
+Sat Oct  4 09:12:03 2014  Zachary Scott  <e@zzak.io>
+
+	* ext/win32ole/sample/example*.rb: Add wait input to quit for examples
+	  with patch provided by @windwiny [Fixes GH-705]
+	  https://github.com/ruby/ruby/pull/705
+
+Sat Oct  4 09:08:18 2014  Zachary Scott  <e@zzak.io>
+
+	* ext/win32ole/win32ole.c: [DOC] Fix typo in :nodoc: reported by
+	  @windwiny to [Fix GH-705] https://github.com/ruby/ruby/pull/705
+
+	* ext/pty/pty.c: ditto
+
+Sat Oct  4 08:59:45 2014  Zachary Scott  <e@zzak.io>
+
+	* ext/openssl/ossl_rand.c: [DOC] Add call signature for pseudo_bytes
+	  and random_bytes, wrap lines at 80 chars, and remove useless
+	  comments.
+
+Sat Oct  4 08:49:34 2014  Zachary Scott  <e@zzak.io>
+
+	* ext/openssl/ossl_rand.c: [DOC] Add rdoc for method descriptions
+	  By @vipulnsward [Fixes GH-657] https://github.com/ruby/ruby/pull/657
+
+Sat Oct  4 08:23:48 2014  Zachary Scott  <e@zzak.io>
+
+	* ext/openssl/ossl_rand.c: Use rb_define_module_function instead of
+	  macro. [Fixes GH-686] https://github.com/ruby/ruby/pull/686
+
+Sat Oct  4 06:04:56 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole_method.c(olemethod_set_member): remove
+	  redundant NULL check.
+	* ext/win32ole/win32ole_type.c(oletype_set_member): ditto.
+
+Sat Oct  4 00:25:04 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* .travis.yml: removed needless preparation for gcc.
+
+Fri Oct  3 23:41:20 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* .travis.yml: enabled gcc build with osx on travis.
+
+Fri Oct  3 23:22:23 2014  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* template/fake.rb.in: fix make install failure due to MSYS path
+	  with mingw on MSYS environment.
+	  [ruby-core:64965] [Bug #10230]
+
+Fri Oct  3 21:02:32 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/ruby/test_io.rb (TestIO#test_advise): avoid to infinite loop.
+
+Fri Oct  3 19:26:01 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* .travis.yml: enabled test results of linux.
+
+Fri Oct  3 18:52:16 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/ruby/test_io.rb (TestIO#test_advise): added workaround of fadvise(2)
+	  with tmpfs and old linux kernel. [ruby-core:65355][Bug #10313]
+
+Fri Oct  3 18:22:45 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* .travis.yml: Disabled to generate document on travis.
+	  Reduce test running time.
+
+Fri Oct  3 12:42:15 2014  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb: Add hstack & vstack methods.
+	  Based on a patch by creasywuqiong. [Fix GH-344]
+
+Fri Oct  3 12:37:48 2014  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb: Fix Matrix.rows copy bug.
+	  Patch by Arron Mabrey. [Fix GH-707]
+
+Fri Oct  3 06:06:28 2014  Eric Wong  <e@80x24.org>
+
+	* st.c (next_pow2): new function (from old bignum.c)
+	  (new_size): use next_pow2 function
+
+Fri Oct  3 05:58:58 2014  Eric Wong  <e@80x24.org>
+
+	* vm_trace.c (rb_tp_t): pack 56 => 48 bytes on 64-bit
+
+Thu Oct  2 18:41:45 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/etc/etc.c (etc_nprocessors): Windows support.
+	  see [Feature #10267]
+
+Thu Oct  2 12:21:52 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/etc/etc.c (etc_nprocessors): New method.
+	  Accepted by matz at RubyKaigi 2014.
+	  [ruby-core:65142] [Feature #10267]
+
+Thu Oct  2 07:56:49 2014  Eric Wong  <e@80x24.org>
+
+	* iseq.c (rb_iseq_line_trace_each): explicit cast
+	  Fix https://travis-ci.org/ruby/ruby/jobs/36814282
+
+Thu Oct  2 05:40:05 2014  Eric Wong  <e@80x24.org>
+
+	* ruby.h: set rb_event_flag_t to uint32_t
+	  [ruby-core:65315] [misc #10249]
+
+Thu Oct  2 05:32:17 2014  Eric Wong  <e@80x24.org>
+
+	* io.c (fptr_finalize): free memory before GC sweep
+	  [ruby-core:65269] [Feature #10295]
+
+Thu Oct  2 05:27:24 2014  Eric Wong  <e@80x24.org>
+
+	* marshal.c (w_class): check dump_arg->compat_tbl before lookup
+	  (w_object): lazy init ->compat_tbl before insert
+	  (obj_alloc_by_class): ditto
+	  (clear_dump_arg): free only non-NULL ->compat_tbl
+	  (clear_load_arg): ditto for ->compat_tbl
+	  (marshal_dump): ->compat_tbl defaults to zero
+	  (marshal_load): ditto for ->compat_tbl
+	  (r_entry0): check l->compat_tbl before lookup
+	  (r_fixup_compat): ditto
+	  [ruby-core:65305] [Feature #10302]
+
+Wed Oct  1 21:14:34 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole_type.c: use typed data.
+
+Wed Oct  1 18:15:42 2014  Nolan Evans  <nolane@gmail.com>
+
+	* compile.c: remove commented out code.
+
+Wed Oct  1 17:38:53 2014  Rei Odaira  <Rei.Odaira@gmail.com>
+
+	* test/fileutils/test_fileutils.rb: AIX does not allow
+	  a sticky bit on a regular file.
+
+Wed Oct  1 17:31:41 2014  Eric Hodel  <drbrain@segment7.net>
+
+	* NEWS:  Add RubyGems update.
+
+Wed Oct  1 17:28:58 2014  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems 2.4.2.
+	* test/rubygems:  ditto.
+
+Tue Sep 30 22:25:32 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_data_type): separate ripper data type for from
+	  parser.
+
+Tue Sep 30 18:46:31 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole_typelib.c: use typed data.
+
+Tue Sep 30 09:51:46 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* common.mk: fixed broken reference of update-config_files task
+
+Mon Sep 29 22:54:51 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/file.c (append_wstr): set expanded length, not length of
+	  appended string.  fix "probable buffer overflow" bug.
+	  [ruby-core:65317] [Bug #10304]
+
+	* string.c (str_make_independent_expand): drop NOFREE flag after
+	  reallocation, static buffer is not pointed anymore.
+	  [ruby-core:65317] [Bug #10304]
+
+Sun Sep 28 23:59:17 2014  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* gc.c (rb_gcdebug_print_obj_condition): use RVALUE_REMEMBERED
+	  because GET_HEAP_REMEMBERSET_BITS is obsoleted.
+
+Sun Sep 28 11:14:14 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* common.mk: Created new target update-unicode to download
+	  some Unicode data files.
+
+Fri Sep 26 15:03:19 2014  Masaki Matsushita <glass.saga@gmail.com>
+
+	* lib/uri/rfc3986_parser.rb: raise URI::InvalidURIError when
+	  uri doesn't respond to #to_str. [ruby-core:64453] [Bug #10150]
+
+	* test/uri/test_parser.rb: test for above.
+
+Sat Sep 27 10:31:48 2014  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* gems/bundled_gems: upgraded to power_assert 0.1.4.
+
+Fri Sep 26 12:52:36 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/stringio/stringio.c (strio_write): ASCII-8BIT StringIO
+	  should be writable any encoding strings, without conversion.
+	  [ruby-core:65240] [Bug #10285]
+
+Fri Sep 26 05:21:01 2014  Eric Wong  <e@80x24.org>
+
+	* object.c (rb_class_real): do not dereference 0 VALUE
+
+	* test/ruby/test_module.rb (test_inspect_segfault):
+	  Test case and bug report by Thomas Stratmann.
+	  [ruby-core:65214] [Bug #10282]
+
+Fri Sep 26 05:12:10 2014  Eric Wong  <e@80x24.org>
+
+	* man/ruby.1: document stack size env variables
+	  [Feature #10197]
+
+Thu Sep 25 19:37:34 2014  Eric Wong  <e@80x24.org>
+
+	* io.c (free_io_buffer): new function for a common pattern
+	  (clear_readconv): use free_io_buffer
+	  (rb_io_fptr_finalize): ditto
+
+Thu Sep 25 07:51:07 2014  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* lib/matrix.rb: Fix docs. Patched by Ben Woodall. [GH-726]
+
+Wed Sep 24 19:04:04 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* enc/unicode/data: New directory for downloaded Unicode
+	  data files.
+
+Wed Sep 24 18:59:59 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* tool/downloader.rb: Adjusting example for
+	  Downloader.download to implementation changes in r47693.
+
+Wed Sep 24 18:06:06 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* tool/downloader.rb: Removing unused method
+	  Downloader.download_if_modified_since.
+	  (if ever used, just replace with Downloader.download)
+
+Wed Sep 24 17:59:59 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* tool/downloader.rb: Fixing raise after return.
+
+Wed Sep 24 17:55:55 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* tool/downloader.rb: Made Unicode data file location available
+	  via :unicode Symbol.
+
+Wed Sep 24 10:45:45 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* tool/downloader.rb: Small fix to documentation comment.
+
+Tue Sep 23 22:00:20 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parse_ident): just after a label, new expression should
+	  start, cannot be a modifier.  [ruby-core:65211] [Bug #10279]
+
+Tue Sep 23 16:07:07 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* tool/downloader.rb: added Downloader.download_if_modified_since
+	  to reduce downloads of large files that change only rarely.
+	  [ruby-core:65164] [CommonRuby - Feature #10084]
+
+Tue Sep 23 11:55:09 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* .travis.yml: added rubyspec into travis tasks and eliminate to stdout.
+
+Mon Sep 22 20:00:29 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* test/win32ole/test_win32ole_variant.rb
+	  (test_conversion_time2date_with_msec): test by using only
+	  assert_in_delta  to avoid to fail when converting Time object with
+	  999999999 nanoseconds into VT_DATE Variant.
+
+Mon Sep 22 19:49:12 2014  Zachary Scott  <e@zzak.io>
+
+	* doc/syntax/methods.rdoc: [DOC] [] and []= methods by @process
+	  [Fixes GH-662] https://github.com/ruby/ruby/pull/662
+
+Mon Sep 22 18:21:35 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* .travis.yml: Only osx build is enabled. linux builds is random failure
+	  and test results of major linux is covered by rubyci.
+
+Mon Sep 22 12:10:29 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_time_tz.rb: Fix test error with tzdata-2014g.
+	  [ruby-core:65058] [Bug #10245] Reported by Vit Ondruch.
+
+Mon Sep 22 09:28:43 2014  Eric Wong  <e@80x24.org>
+
+	* ext/socket/ancdata.c ({send,recv}msg_args_struct): 24 => 16 bytes
+	* ext/socket/init.c (connect_arg): ditto
+	* ext/socket/raddrinfo.c (getnameinfo_arg): 56 => 48 bytes
+	  (reductions only for 64-bit systems)
+
+Mon Sep 22 02:04:25 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/drb/drb.rb: Support graceful shutdown.
+	  (DRbTCPSocket#initialize): Create a pipe for shutdown notification.
+	  (DRbTCPSocket#close): Invoke close_shutdown_pipe.
+	  (DRbTCPSocket#close_shutdown_pipe): New private method.
+	  (DRbTCPSocket#accept): Use accept_or_shutdown.
+	  (DRbTCPSocket#accept_or_shutdown): New private method which returns
+	  nil on shutdown.
+	  (DRbServer#stop_service): Use shutdown instead of Thread#kill.
+	  (DRbServer#run): Break infinite loop when main_loop returns nil.
+	  (DRbServer#main_loop): @protocol.accept may return nil.
+
+	* lib/drb/ssl.rb: Follow above change.
+
+	* lib/drb/unix.rb: Ditto.
+
+Sun Sep 21 13:54:36 2014  Masaki Matsushita <glass.saga@gmail.com>
+
+	* time.c: raise exception when minutes of utc_offset is out of 00-59.
+	  patch is from Kenichi Kamiya.
+	  [ruby-dev:47539] [Bug #8679]
+
+	* test/ruby/test_time.rb: test for above.
+	  patch is from Kenichi Kamiya.
+
+Sun Sep 21 19:04:08 2014  Narihiro Nakamura <authornari@gmail.com>
+
+	* st.c (do_hash_bin): unused macro.
+
+Sun Sep 21 18:45:01 2014  Narihiro Nakamura <authornari@gmail.com>
+
+	* parse.y (parser_class_nest): unused variable after YARV
+	  merged (r11439).
+
+Sun Sep 21 18:14:03 2014  Narihiro Nakamura <authornari@gmail.com>
+
+	* st.c (numberof): unused. internal.h has same macro.
+
+	* node.c (F_CUSTOM2): unused.
+
+Sun Sep 21 14:11:23 2014  Tanaka Akira  <akr@fsij.org>
+
+	* thread_pthread.c (native_set_thread_name): New function to
+	  set thread name visible with ps command on GNU/Linux.
+	  Ex. ps -o %c -L
+
+	* thread.c (thread_start_func_2): Call native_set_thread_name at
+	  beginning.
+	  (rb_thread_inspect_msg): Extract from rb_thread_inspect.
+
+Sun Sep 21 12:49:11 2014  Eric Wong  <e@80x24.org>
+
+	* iseq.c (rb_iseq_defined_string): trim redundant semi-colon
+
+Sun Sep 21 12:19:29 2014  Eric Wong  <e@80x24.org>
+
+	* file.c (rb_find_file_ext_safe): clear tmp buffer on failure
+	  (rb_find_file_safe): ditto
+
+Sat Sep 20 04:42:18 2014  Masaki Matsushita <glass.saga@gmail.com>
+
+	* lib/csv.rb: avoid unnecessary object allocations.
+	  patch is from Andrew Vit. [ruby-core:63215] [Feature #9952]
+
+Sun Sep 21 12:10:18 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/rexml/**/*.rb: removed commented-out code.
+
+Sat Sep 20 03:46:58 2014  Masaki Matsushita <glass.saga@gmail.com>
+
+	* array.c: use rb_equal_opt() for performance improvement.
+	  [ruby-core:64954] [Feature #10227]
+
+Sun Sep 21 11:16:56 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (rbtime2vtdate, vtdate2rbtime): fix
+	  the bug in conversion of milliseconds. [Bug #10258]
+
+	* test/win32ole/test_win32ole_variant.rb
+	  (test_conversion_dbl2date_with_msec,
+	  test_conversion_time2date_with_msec): use assert_in_delta instead
+	  of assert_equal to treat an acceptable error range.
+
+Sun Sep 21 11:03:32 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* signal.c (ruby_signal): although "EINVAL from sigaction(2) is
+	  not a bug", but even it is a failure.  pointed at toRuby/guRuby
+	  in RubyHiroba.
+
+Sat Sep 20 03:00:26 2014  Masaki Matsushita <glass.saga@gmail.com>
+
+	* lib/tempfile.rb: define parameters appropriately and some
+	  refactoring.
+
+	* lib/tmpdir.rb: ditto.
+
+Sat Sep 20 23:58:21 2014  Tanaka Akira  <akr@fsij.org>
+
+	* enum.c (enum_chunk): Deprecate the state management.
+	  (enum_slice_before): Ditto.
+
+Sat Sep 20 15:39:11 2014  Tanaka Akira  <akr@fsij.org>
+
+	* enum.c (enum_slice_when): New method: Enumerable#slice_when.
+	  (slicewhen_i): New function.
+	  (slicewhen_ii): New function.
+
+	* enumerator.c (InitVM_Enumerator): New method:
+	  Enumerator::Lazy#slice_when.
+
+	  [ruby-core:62499] [Feature #9826]
+
+Sat Sep 20 11:55:19 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* .travis.yml: added new configurations for osx on travis ci.
+	  [fix GH-723]
+	* test/ruby/test_object.rb: tweaked to memory leak limit for osx build.
+
+Sat Sep 20 10:48:41 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (assoc): allow quoted ID as a key of a hash literal.
+	  [ruby-core:34453] [Feature #4276]
+
+Sat Sep 20 10:23:00 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_set_arguments): store local variable IDs in
+	  temporary list as Symbols.  previously these are stored as
+	  Fixnums to prevent from GC, but IDs of dynamic symbols can
+	  exceed Fixnum range and cause RangeError at inverting from
+	  Fixnum.  [ruby-dev:48564] [Bug #10266]
+
+Sat Sep 20 10:02:51 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/openssl/lib/openssl/x509.rb (OpenSSL::X509::Name#pretty_print):
+	  New method.
+	  (OpenSSL::X509::Certificate#pretty_print): Ditto.
+
+	* ext/openssl/lib/openssl/bn.rb (OpenSSL::BN#pretty_print): Ditto.
+
+Sat Sep 20 07:55:57 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (eval_string_with_cref): fix super from eval with
+	  scope.  set klass in the current control frame to the class of
+	  the receiver in the context to be evaluated, this class/module
+	  must match the actual receiver to call super.
+	  [ruby-core:65122] [Bug #10263]
+
+Fri Sep 19 20:06:00 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* symbol.c (rb_str_dynamic_intern): check if the stem ID of
+	  attrset ID is already registered as a static ID.
+	  [ruby-dev:48559] [Bug #10259]
+
+Fri Sep 19 15:48:09 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/Makefile.sub (VCSUP): nothing to do if this worktree is not
+	  under any VCS (it means that the worktree may be from the release
+	  package).
+
+Fri Sep 19 10:47:03 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/test_math.rb (TestMath#assert_infinity): Float#finite?
+	  returns true also for NaN, so use Float#infinite? instead.
+	  [ruby-core:65117] [Feature #10261]
+
+Fri Sep 19 05:36:16 2014  Eric Wong  <e@80x24.org>
+
+	* NEWS: note --with-jemalloc option [ci skip]
+
+Thu Sep 18 16:26:27 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/rubygems/test_gem_commands_setup_command.rb: @ui uses StringIO
+	  as its streams, and Encoding.default_external does not effect to
+	  StringIOs already exist.  so, we need to set external_encoding of
+	  @ui.outs directly.  this problem (test failure) does not appear in
+	  the environments default_external is us-ascii or utf-8.
+
+Thu Sep 18 15:02:15 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/rubygems/test_gem_specification.rb: '/' is not always the root.
+
+Thu Sep 18 09:36:37 2014  Scott Francis  <scott.francis@shopify.com>
+
+	* vm_method.c (Init_Method): make global method cache size
+	  configurable by environment variable
+	  "RUBY_GLOBAL_METHOD_CACHE_SIZE"  [Fix GH-719]
+
+Thu Sep 18 07:03:36 2014  Eric Wong  <e@80x24.org>
+
+	* test/-ext-/string/test_modify_expand.rb: increase limit
+	  for {je,tc}malloc [Bug #10236]
+
+Thu Sep 18 06:41:18 2014  Eric Wong  <e@80x24.org>
+
+	* ext/zlib/zlib.c (struct gzfile): pack (288 => 272 bytes) on 64-bit
+
+Thu Sep 18 05:44:05 2014  Eric Wong  <e@80x24.org>
+
+	* ext/socket/init.c (rsock_connect): refactor for blocking
+	  (wait_connectable): clear error before wait
+	  [Bug #9356]
+
+Wed Sep 17 23:12:36 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/rfc3986_parser.rb: specify a regexp for :OPAQUE; generic.rb
+	  assumes it is present, and will refuse all values otherwise.
+	  by Matthew Draper <matthew@trebex.net>
+	  https://github.com/ruby/ruby/pull/718 fix GH-718
+
+Wed Sep 17 16:22:58 2014  Eric Wong  <e@80x24.org>
+
+	* ext/zlib/zlib.c (zlib_mem_alloc): check overflow
+
+Wed Sep 17 11:33:35 2014  Laurent Arnoud  <laurent@spkdev.net>
+
+	* test/fiddle/test_import.rb (Fiddle::TestImport#test_sizeof):
+	  added test for long long [fix GH-716]
+
+Wed Sep 17 11:09:21 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* tool/rbinstall.rb: fixed invalid options with latest rubygems.
+	  https://github.com/rubygems/rubygems/issues/1013
+
+Tue Sep 16 19:19:00 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* benchmark/bm_app_aobench.rb: update outdated links to the
+	  original program.  [ruby-dev:48550] [Feature #10247]
+
+Tue Sep 16 01:06:40 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* reg*.c: Merge Onigmo 5.15.0 38a870960aa7370051a3544
+
+Mon Sep 15 16:21:10 2014  Eric Wong  <e@80x24.org>
+
+	* io.c (struct io_advise_struct): 32 => 24 bytes on 64-bit
+	* io.c (struct io_internal_writev_struct): 24 => 16 bytes on 64-bit
+	* process.c (struct waitpid_arg): ditto
+
+Mon Sep 15 10:29:25 2014  Natalie Weizenbaum  <nweiz@google.com>
+
+	* ext/pathname/lib/pathname.rb (SAME_PATHS):
+	  Pathname#relative_path_from uses String#casecmp to compare strings
+	  on case-insensitive filesystem platforms (e.g., Windows). This can
+	  return nil for strings with different encodings, and the code
+	  previously assumed that it always returned a Fixnum.  [Fix GH-713]
+
+Mon Sep 15 09:43:18 2014  Sho Hashimoto  <sho.hsmt@gmail.com>
+
+	* ext/fiddle/lib/fiddle/import.rb (Fiddle::Importer#sizeof): fix typo,
+	  SIZEOF_LONG_LON.  [Fix GH-714]
+
+Mon Sep 15 08:13:40 2014  Matthew Draper  <matthew@trebex.net>
+
+	* sprintf.c (rb_str_format): rational 'f' format works for more
+	  values.  [fix GH-717]
+
+Sun Sep 14 16:57:27 2014  Eric Wong  <e@80x24.org>
+
+	* template/vm.inc.tmpl: "insns.c" => "insns.def"
+	* tool/instruction.rb: typo fix
+
+Sun Sep 14 12:29:52 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/test_tracer.rb: fixed testcase for rubygems update.
+
+Sun Sep 14 12:29:02 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/rubygems:  Update to RubyGems 2.4.1 master(713ab65)
+	  Complete history at:
+	  https://github.com/rubygems/rubygems/blob/master/History.txt#L3-L216
+
+	* test/rubygems:  ditto.
+
+Sun Sep 14 11:03:24 2014  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb: update version
+	* ext/psych/psych.gemspec: ditto
+
+Sun Sep 14 08:43:37 2014  Eric Wong  <e@80x24.org>
+
+	* ccan/container_of/container_of.h (container_of_or_null): added
+	  [ccan 7ec5b8e06b2fd5fa98b1fcde1158c286d2d429d8] (David Gibson)
+
+Sun Sep 14 08:41:44 2014  Eric Wong  <e@80x24.org>
+
+	* ccan/list/list.h (list_del_init, list_node_init): new functions
+	  for multiple list_del() calls
+	  [ccan ec8654d94d3c5c47aa5f82698f7e8048c79765b1] (Rusty Russell)
+
+Sat Sep 13 22:19:26 2014  Bernard Potocki  <bernard.potocki@imanel.org>
+
+	* hash.c (rb_hash_aset): fix misleading example which may suggest
+	  that Hash.store will return self instead of value - Hash#store
+	  is returning value and update itself, as well as Hash#[]=.
+	  [Fix GH-715]
+
+Sat Sep 13 15:16:31 2014  Eric Wong  <e@80x24.org>
+
+	* class.c: use ALLOC(rb_subclass_entry_t)
+
+Sat Sep 13 14:14:00 2014  Eric Wong  <e@80x24.org>
+
+	* process.c (free_exec_arg): remove
+	  (memsize_exec_arg): ptr is never NULL
+	  (exec_arg_data_type): use RUBY_TYPED_DEFAULT_FREE
+
+	* variable.c (autoload_i_free): remove
+	  (autoload_data_i_type): use RUBY_TYPED_DEFAULT_FREE
+	  (autoload_memsize): ptr is never NULL
+
+	* vm_backtrace.c (location_free): remove
+	  (location_mark): ptr is never NULL
+	  (location_data_type): use RUBY_TYPED_DEFAULT_FREE
+	  (backtrace_mark): ditto
+	  (backtrace_free): ditto
+
+Sat Sep 13 13:43:07 2014  Eric Wong  <e@80x24.org>
+
+	* doc/NEWS-2.0.0: fix typo for default RUBY_FIBER_MACHINE_STACK_SIZE
+	  [ci skip]
+
+Sat Sep 13 11:16:58 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole_event.c(ev_advise, ole_event_free,
+	  fev_s_allocate, fev_unadvise): avoid segmentation fault when COM
+	  server freed before calling Unadvise from WIN32OLE_EVENT object.
+	* ext/win32ole/win32ole.c: ditto.
+
+Sat Sep 13 09:47:44 2014  Eric Wong  <e@80x24.org>
+
+	* man/ruby.1: use https for *.ruby-lang.org links
+
+Sat Sep 13 06:31:23 2014  Eric Wong  <e@80x24.org>
+
+	* vm.c (thread_alloc): remove needless volatile
+
+Sat Sep 13 06:13:55 2014  Eric Wong  <e@80x24.org>
+
+	* proc.c (proc_free): remove, use RUBY_TYPED_DEFAULT_FREE
+	  (proc_mark, proc_memsize): remove needless branching
+
+	* vm.c (env_free): remove, use RUBY_TYPED_DEFAULT_FREE
+	  (env_mark, env_memsize): remove needless branching
+
+Sat Sep 13 05:52:15 2014  Eric Wong  <e@80x24.org>
+
+	* proc.c (rb_proc_alloc): inline and move to vm.c
+	  (rb_proc_wrap): new wrapper function used by rb_proc_alloc
+	  (proc_dup): simplify alloc + copy + wrap operation
+	  [ruby-core:64994]
+
+	* vm.c (rb_proc_alloc): new inline function
+	  (rb_vm_make_proc): call rb_proc_alloc
+
+	* vm_core.h: remove rb_proc_alloc, add rb_proc_wrap
+
+	* benchmark/bm_vm2_newlambda.rb: short test to show difference
+
+Sat Sep 13 04:40:04 2014  Eric Wong  <e@80x24.org>
+
+	* process.c (Init_process): subclass Thread as Process::Waiter
+	  (rb_detach_process): use Process::Waiter instead of singleton class
+	  Thanks to headius and nobu. [Bug #10231]
+
+	* test/ruby/test_process.rb (test_process_detach): new test
+
+	* inits.c (rb_call_inits): call Init_Thread before Init_process to
+	  ensure Process::Waiter may be a subclass of Thread
+
+Fri Sep 12 18:14:28 2014  Eric Wong  <e@80x24.org>
+
+	* vm.c (env_alloc): inline to avoid extra zeroing
+	  tiny speedup [ruby-core:64980]
+
+Fri Sep 12 17:13:29 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_method.c (rb_method_entry_make, remove_method): ditto.
+
+Fri Sep 12 14:39:55 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* gems/bundled_gems: Upgraded to test-unit-3.0.1 and minitest-5.4.1
+
+Fri Sep 12 06:55:40 2014  Eric Wong  <e@80x24.org>
+
+	* string.c (Init_frozen_strings): use st_init_table_with_size
+
+Fri Sep 12 06:15:37 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (sym_find): remove Symbol.find because we have Symbol GC now.
+	  https://bugs.ruby-lang.org/projects/ruby/wiki/DevelopersMeeting20140904Japan
+	  If you still want this, request again on Redmine. [Feature #7854]
+	  https://bugs.ruby-lang.org/issues/7854
+
+	* ext/-test-/symbol/init.c (sym_find): moved from string.c for tests.
+
+Fri Sep 12 04:24:03 2014  Eric Wong  <e@80x24.org>
+
+	* insns.def (once): define and use fake RUNNING_THREAD_ONCE_DONE
+	  pointer to indicate is->once.running_thread is done.
+
+	* vm_core.h (iseq_inline_storage_entry): remove done field,
+	  allowing the union to be reduced from 24=>16 bytes on 64-bit
+	  [Feature #10187]
+
+Thu Sep 11 20:10:00 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (rb_thread_mark): use rb_gc_mark_values() to mark VM stack.
+
+Thu Sep 11 19:50:57 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (rb_vm_register_special_exception): make new function to
+	  make and register special exceptions.
+
+	* vm.c (rb_vm_mark): do not need to mark special exceptions
+	  because they are registered by rb_gc_register_mark_object().
+
+	* eval.c (Init_eval): use rb_vm_register_special_exception().
+
+	* gc.c (Init_GC): ditto.
+
+	* proc.c (Init_Proc): ditto.
+
+	* thread.c (Init_Thread): ditto.
+
+Thu Sep 11 19:32:30 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_gc_mark_values): added.
+	  This function is similar to rb_gc_mark_locations(), but not
+	  conservative.
+
+	* internal.h: ditto.
+
+	* vm.c (env_mark): use rb_gc_mark_values() because env values should
+	  be Ruby VALUEs.
+
+Thu Sep 11 19:16:39 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_mark_ptr): rename to gc_mark_set.
+
+	* gc.c (gc_mark): add gc_mark_ptr() to skip is_markable_object()
+	  check. gc_mark_maybe() can use gc_mark_ptr() directly because
+	  passed pointer is checked by is_pointer_to_heap().
+
+Thu Sep 11 18:40:16 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* .gitignore: ignored temporary files and coverage results.
+
+Thu Sep 11 18:15:30 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* .gitignore: ignored only simplecov.
+	* coverage/README: Added coverage docs.
+
+Thu Sep 11 17:25:31 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h, gc.c: add new internal events
+	  RUBY_INTERNAL_EVENT_GC_ENTER and
+	  RUBY_INTERNAL_EVENT_GC_EXIT.
+
+	  When invoking GC process, GC_ENTER event is called.
+	  When exiting from GC process, GC_EXIT event is called.
+
+	  Incremental GC (incremental marking and lazy sweep) can call
+	  these events many times.
+
+	  For example (minor marking):
+	  (1) GC_ENTER
+	  - (2) GC_START (minor GC)
+	    (minor marking)
+	  - (3) GC_END_MARK
+	    (start lazy sweep)
+	  (4) GC_EXIT
+	    (ruby process)
+	  (5) GC_ENTER
+	    (lazy sweep)
+	  (6) GC_EXIT
+	    (ruby process)
+	    (... repeat (5), (6))
+	  (7) GC_ENTER
+	      (finish lazy sweep)
+	    - (8) GC_END_SWEEP
+	  (9) GC_EXIT
+
+	  2nd example (incremental major marking):
+	  (1) GC_ENTER
+	  - (2) GC_START (minor GC)
+	    (start incremental marking)
+	  (3) GC_EXIT
+	    (ruby process)
+	  (4) GC_ENTER
+	    (incremental marking)
+	  (5) GC_EXIT
+	     (ruby process)
+	     (... repeat (4), (5))
+	  (6) GC_ENTER
+	    (finish incremental marking)
+	  - (7) GC_END_MARK
+	    (start lazy sweep)
+	  (8) GC_EXIT
+	    (ruby process)
+	  (9) GC_ENTER
+	    (lazy sweep)
+	  (10) GC_EXIT
+	    (ruby process)
+	    (... repeat (9), (10))
+	  (11) GC_ENTER
+	    (finish lazy marking)
+	  - (12) GC_STOP_SWEEP
+	  (13) GC_EXIT
+
+	  These internal events enable to measure GC pause time completely.
+
+Thu Sep 11 17:04:54 2014  Eric Wong  <e@80x24.org>
+
+	* lib/benchmark.rb: remove CLOCK_MONOTONIC_RAW support
+	  Thanks to Vit Ondruch for reporting the issue on ARM.
+	  [Bug #10202]
+
+Thu Sep 11 14:31:57 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h: freeze nil/true/false.
+	  [Feature #8923]
+
+	* gc.c (should_be_finalizable): check frozen after checkin FL_ABLE.
+
+	* object.c (rb_obj_taint): check
+	  OBJ_TAINTABLE(obj).
+
+	* object.c (rb_obj_freeze): remove immediate_frozen_tbl
+	  because all of immediate values are frozen. YAY!
+
+	* object.c (rb_obj_frozen_p): ditto.
+
+	* test/ruby/test_eval.rb: skip instance_variable_set for
+	  frozen objects.
+
+	* test/ruby/test_weakmap.rb: check ArgumentError instead of
+	  RuntimeError.
+
+Thu Sep 11 10:03:16 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/rdoc.rb, lib/rdoc, test/rdoc: Update to RDoc 4.2.0.alpha(21b241a)
+
+Wed Sep 10 17:52:25 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (rb_vm_addr2insn): rename to rb_vm_insn_addr2insn
+	  to clear what address.
+
+Wed Sep 10 16:22:26 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_gc.rb: fix condition.
+
+Wed Sep 10 15:29:46 2014  Eric Wong  <e@80x24.org>
+
+	* vm_core.h (rb_call_info_t): ci->flag becomes 32-bit unsigned int
+	  ci->index becomes a 32-bit signed int (from signed long).
+	  Reorder for better packing on 64-bit, giving an 8 byte reduction
+	  from 104 to 96 bytes for each ci.
+	  [Feature #10187]
+
+	* compile.c (new_callinfo, setup_args, iseq_compile_each,
+	  iseq_build_from_ary_body): adjust for type changes
+
+	* vm_insnhelper.c (vm_getivar): ditto
+
+Wed Sep 10 15:07:35 2014  Eric Wong  <e@80x24.org>
+
+	* compile.c (rb_iseq_translate_threaded_code):
+	  modify in-place w/o copy
+	  (rb_vm_addr2insn): new function for debug
+	  (rb_iseq_original_iseq): ditto
+	  (iseq_set_sequence): assign iseq_encoded directly
+	  [Feature #10185]
+
+	* vm_core (rb_iseq_t): move original ->iseq to bottom
+
+	* iseq.c (iseq_free, iseq_free): adjust for new layout
+	  (rb_iseq_disasm): use original iseq for dump
+	  (iseq_data_to_ary): ditto
+	  (rb_iseq_line_trace_each): ditto
+	  (rb_iseq_build_for_ruby2cext): use iseq_encoded directly
+
+	* vm_dump.c (rb_vmdebug_debug_print_pre): use original iseq
+
+Wed Sep 10 15:00:11 2014  Eric Wong  <e@80x24.org>
+
+	* time.c (time_mark): remove NULL check
+	  (time_memsize): ditto
+	  (time_free): remove, use RUBY_TYPED_DEFAULT_FREE instead
+	  [Feature #10219]
+
+Wed Sep 10 14:14:57 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* common.mk (encs enc trans libencs libenc libtrans): force to run
+	  enk.mk because common.mk does not know the dependency, but enk.mk
+	  knows. [ruby-dev:48530] [Bug #10220]
+
+Wed Sep 10 11:59:10 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_stat): update rdoc.
+
+Wed Sep 10 11:52:08 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_stat_internal): rename:
+	  * malloc_increase -> malloc_increase_bytes
+	  * malloc_limit -> malloc_increase_bytes_limit
+	  * oldmalloc_increase -> oldmalloc_increase_bytes
+	  * oldmalloc_limit -> oldmalloc_increase_bytes_limit
+	  ref: [Feature #9924]
+
+Wed Sep 10 11:45:40 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_stat_internal): rename `heap_used' to `heap_allocated_pages'.
+	  ref: [Feature #9924]
+
+	* test/ruby/test_gc.rb: add constraints test for gc stat information.
+
+Wed Sep 10 11:31:16 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_stat_internal): rename:
+	  * remembered_shady_object -> remembered_wb_unprotected_objects
+	  * remembered_shady_object_limit -> remembered_wb_unprotected_objects_limit
+	  * old_object -> old_objects
+	  * old_object_limit -> old_objects_limit
+	  ref: [Feature #9924]
+
+Wed Sep 10 11:12:25 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_stat_internal): support:
+	  * total_allocated_pages
+	  * total_freed_pages
+	  ref: [Feature #9924]
+
+Wed Sep 10 10:48:04 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_gc.rb: catch up last fix.
+
+Wed Sep 10 10:36:08 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (objspace_total_slot): rename objspace_available_slots.
+
+	* gc.c (objspace_live_slot, objspace_free_slot): rename
+	  ..._slot() to ..._slots().
+
+	* gc.c (objspace_free_slot): should subtract heap_pages_final_slots.
+
+	* gc.c (gc_stat_internal):
+	  * add `heap_available_slots' field
+	  * rename heap_live_slot to heap_live_slots
+	  * rename heap_free_slot to heap_free_slots
+	  ref: [Feature #9924]
+
+Wed Sep 10 07:22:53 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: refactoring for RGENGC_PROFILE > 0.
+
+	  * rename rb_objspace_t::profile::..._count
+	    to rb_objspace_t::profile::total_..._count
+	  * rename promote_infant_types to promote_types
+
+	* gc.c (gc_remember_unprotected): count remembered shady objects here.
+
+Wed Sep 10 03:12:12 2014  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* gc.c (init_mark_stack): MEMZERO() receive type as 2nd argument instead
+	  of size.
+	  Coverity Scan found this bug.
+
+Tue Sep  9 21:55:39 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/sample/excel2.rb: remove some commented-out code.
+	  rotate graph more slowly to see graph clearly.
+
+Tue Sep  9 19:52:33 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: rename rb_objspace_t::marked_objects to marked_slots.
+
+	* gc.c (gc_marks_start): should be clear first.
+
+	* gc.c (gc_marks_start): remembered shady objects are also marked.
+
+	* gc.c (gc_stat_internal): add heap_marked_slots.
+
+Tue Sep  9 18:58:48 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: rename
+	  * total_allocated_object_num -> total_allocated_objects
+	  * total_allocated_object_num_at_gc_start -> total_allocated_objects_at_gc_start
+	  * total_freed_object_num -> total_freed_objects
+
+	* gc.c (gc_stat_internal):
+	  * rename total_allocated_object -> total_allocated_objects
+	  * rename total_freed_object -> total_freed_objects
+
+Tue Sep  9 18:51:36 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_stat_internal): fix symbol names
+	  * heap_final_slot -> heap_final_slots
+	  * heap_swept_slot -> heap_swept_slots
+
+Tue Sep  9 18:18:07 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_objspace_t::heap_pages): rename field names:
+	  * used -> allocated_pages
+	  * increment -> allocatable_pages
+	  * length -> sorted_length
+	  And remove unused `limit' field.
+
+	* gc.c: rename macros:
+	  * heap_pages_used -> heap_allocated_pages
+	  * heap_pages_length -> heap_pages_sorted_length
+	  * heap_pages_increment -> heap_allocatable_pages
+
+	* gc.c (gc_stat_internal): fix symbol names
+	  * heap_used -> heap_allocated_pages
+	  * heap_eden_page_length -> heap_eden_pages
+	  * heap_tomb_page_length -> heap_tomb_pages
+	  * heap_increment -> heap_allocatable_pages
+	  * heap_length -> heap_sorted_length
+
+	  ref: [Feature #9924]
+	  https://docs.google.com/spreadsheets/d/11Ua4uBr6o0k-nORrZLEIIUkHJ9JRzRR0NyZfrhEEnc8/edit?usp=sharing
+	  Yellow color fields in this table are changed.
+
+	* test/ruby/test_gc.rb: catch up this change.
+
+Tue Sep  9 14:56:03 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: continue layout changing.
+
+	  newobj_of() also touch:
+	  (4) increment total_allocated_object_num
+	  (5) check hook_events
+
+	  And gather fields related to marking phase.
+
+Tue Sep  9 14:21:50 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: fix layout of rb_objspace_t to improve cache locality.
+
+	  newobj_of() accesses:
+	  (1) rb_objspace_t::flags
+	  (2) rb_objspace_t::eden_heap::freelist
+	  (3) and rb_objspace_t::eden_heap::free_pages if freelist is NULL.
+
+Tue Sep  9 14:09:36 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: move rb_objspace_t::flags::gc_stressful after during_gc
+	  to make accessing both parameters easy.
+
+	* gc.c (heap_get_freeobj): add LIKELY() hint.
+
+	* gc.c (heap_get_freeobj_from_next_freepage): ditto.
+
+	* gc.c (newobj_of): check both parameters at once for exceptional
+	  case.
+
+Tue Sep  9 13:51:32 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: add rb_objspace_t::flags::gc_stressful and
+	  ruby_gc_stressful macro.
+	  Rename objspace->gc_stress to objspace->gc_stress_mode.
+
+	  If objspace->gc_stress_mode is true (!nil and !false) then
+	  ruby_gc_stressful becomes TRUE.
+
+	  ruby_gc_stressful will speedup newobj_of() slightly.
+
+	* gc.c: initialize ruby_gc_stress(full|_mode) by gc_params.gc_stress
+	  even if ENABLE_VM_OBJSPACE is false.
+
+Tue Sep  9 13:05:50 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: remove ruby_disable_gc_stress and add ruby_disable_gc
+	  to speed-up newobj_of().
+
+	* gc.c (ready_to_gc): check ruby_disable_gc.
+
+	* signal.c: use ruby_disable_gc.
+
+Tue Sep  9 12:11:41 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: rename gc_stat entries and check stat transition.
+
+Tue Sep  9 12:06:03 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_sweep_rest): remove wrong modification of during_gc flag.
+
+Tue Sep  9 11:39:41 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: pack boolean values into rb_objspace_t::flags with bit fields
+	  to improve cache locality.
+
+Tue Sep  9 11:11:05 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_object.rb: extend timeout.
+
+Tue Sep  9 09:02:07 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (MakeMakefile#pkg_config): append --cflags to also
+	  $CXXFLAGS, as they are often used by C++ compiler.
+	  [ruby-core:54532] [Bug #8315]
+
+Tue Sep  9 07:03:22 2014  Eric Wong  <e@80x24.org>
+
+	* compile.c: remove needless SYM2ID <-> ID2SYM conversions
+	  [misc #10207]
+
+Tue Sep  9 05:48:42 2014  Eric Wong  <e@80x24.org>
+
+	* symbol.c (rb_intern_cstr_without_pindown): check dsymbol on return
+	  This is not a complete fix for bug 10206, but seems to reduce
+	  that crash and also looks correct.
+
+Tue Sep  9 04:36:24 2014  Eric Wong  <e@80x24.org>
+
+	* vm_core.h (rb_env_t): use flexible array
+	  This reduces allocations and speeds up the lambda calculus
+	  fizzbuzz (bm_app_lc_fizzbuzz.rb) benchmark [ruby-core:64858]
+	* proc.c (get_local_variable_ptr): deconst to adjust for flex array
+	* vm.c (env_mark, env_free, env_memsize): remove check for env->env
+	* vm.c (env_alloc): single allocation for flex array
+	* vm.c (vm_make_env_each): adjust env_alloc call
+
+Mon Sep  8 16:08:22 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/bm_app_lc_fizzbuzz.rb: should skip output on benchmark.
+
+Mon Sep  8 16:04:02 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/bm_app_lc_fizzbuzz.rb: `answer.to_a' does not return
+	  a string, but an array.
+
+Mon Sep  8 13:18:37 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/bm_app_lc_fizzbuzz.rb: added.
+
+	  This program is described closely in "Understanding Computation"
+	  chapter 6 by Tom Stuart. <http://computationbook.com/>
+
+	  Japanese translation will be published soon.
+	  <http://www.oreilly.co.jp/books/9784873116976/>
+
+Mon Sep  8 12:01:39 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: add incremental GC algorithm. [Feature #10137]
+
+	  Please refer this ticket for details.
+
+	  This change also introduces the following changes.
+
+	  * Remove RGENGC_AGE2_PROMOTION and introduce object age (0 to 3).
+	    Age can be count with FL_PROMOTE0 and FL_PROMOTE1 flags in
+	    RBasic::flags (2 bit). Age == 3 objects become old objects.
+	  * WB_PROTECTED flag in RBasic to WB_UNPROTECTED bitmap.
+	  * LONG_LIVED bitmap to represent living objects while minor GCs
+	    It specifies (1) Old objects and (2) remembered shady objects.
+	  * Introduce rb_objspace_t::marked_objects which counts marked
+	    objects in current marking phase. marking count is needed to
+	    introduce incremental marking.
+	  * rename mark related function and sweep related function to
+	    gc_(marks|sweep)_(start|finish|step|rest|continue).
+	  * rename rgengc_report() to gc_report().
+	  * Add obj_info() function to get cstr of object details.
+	  * Add MEASURE_LINE() macro to measure execution time of specific line.
+	  * and many small fixes.
+
+	* include/ruby/ruby.h: add flag USE_RINCGC.
+	  Now USE_RINCGC can be set only with USE_RGENGC.
+
+	* include/ruby/ruby.h: introduce FL_PROMOTED0 and add FL_PROMOTED1
+	  to count object age.
+
+	* include/ruby/ruby.h: rewrite write barriers for incremental marking.
+
+	* debug.c: catch up flag name changes.
+
+	* internal.h: add rb_gc_writebarrier_remember() instead of
+	  rb_gc_writebarrier_remember_promoted().
+
+	* array.c (ary_memcpy0): use rb_gc_writebarrier_remember().
+
+	* array.c (rb_ary_modify): ditto.
+
+	* hash.c (rb_hash_keys): ditto.
+
+	* hash.c (rb_hash_values): ditto.
+
+	* object.c (init_copy): use rb_copy_wb_protected_attribute() because
+	  FL_WB_PROTECTED is moved from RBasic::flags.
+
+	* test/objspace/test_objspace.rb: catch up ObjectSpace.dump() changes.
+
+Sun Sep  7 12:47:06 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c: PTHREAD_CANCEL_DISABLE is not defined on Android.
+
+Sat Sep  6 20:59:06 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (has_privilege): The gid zero is not a privilege.
+
+Sat Sep  6 20:19:16 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (struct child_handler_disabler_state): cancelstate field
+	  added.
+	  (disable_child_handler_before_fork): Record cancelstate.
+	  (disable_child_handler_fork_parent): Restore cancelstate.
+
+Sat Sep  6 19:27:10 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (struct child_handler_disabler_state): Defined.
+
+Sat Sep  6 18:31:32 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/rake.rb, lib/rake/*, test/rake/*: Update latest rake master(e47d023)
+
+Sat Sep  6 16:38:08 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole_variant.c (ole_val2variant_err,
+	  ole_val2variantdata, Init_win32ole_variant): support VT_ERROR
+	  variant with error code. add WIN32OLE_VARIANT::NoParam.
+	* test/win32ole/test_win32ole_variant.rb(test_c_noparam,
+	  test_vt_error_noparam): ditto.
+	* ext/win32ole/win32ole.c: ditto.
+
+Sat Sep  6 11:08:52 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (arg_ambiguous_gen): fix warning message, "even" does
+	  not mean the number of spaces here.  state the place to put a
+	  space and the operator.  [ruby-core:64790] [Bug #10204]
+
+Sat Sep  6 08:44:40 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/rdoc/generator/template/darkfish/js/jquery.js: Backport
+	  rdoc/rdoc@74f60fcb04fee1778fe2694d1a0ea6513f8e67b7
+
+Sat Sep  6 08:10:44 2014  Eric Wong  <e@80x24.org>
+
+	* test/ruby/test_io.rb (test_readpartial_locktmp): use IO#nonblock=
+	  Old fcntl invocation may drop necessary flags on some platforms.
+
+Sat Sep  6 07:46:51 2014  Eric Wong  <e@80x24.org>
+
+	* test/ruby/test_io.rb (test_readpartial_locktmp): avoid EBADF
+	  [ruby-core:64773] [ruby-core:64775]
+
+Sat Sep  6 01:34:31 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_f_exec): Call before_exec_async_signal_safe and
+	  after_exec_async_signal_safe around rb_exec_async_signal_safe.
+	  (rb_exec_async_signal_safe): Don't call
+	  before_exec_async_signal_safe and after_exec_async_signal_safe.
+	  (rb_exec_without_timer_thread): Call before_exec and
+	  after_exec.
+	  (disable_child_handler_fork_child): Make SIGPIPE handler SIG_DFL.
+
+Sat Sep  6 00:49:41 2014  Tanaka Akira  <akr@fsij.org>
+
+	* signal.c (ruby_signal): Don't set SA_SIGINFO for SIG_IGN and
+	  SIG_DFL.
+
+Fri Sep  5 21:45:33 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (disable_child_handler_before_fork): New function.
+	  (disable_child_handler_fork_parent): Ditto.
+	  (disable_child_handler_fork_child): Ditto.
+	  (retry_fork_async_signal_safe): Call above functions to disable
+	  signal handlers in child process.
+
+Fri Sep  5 21:02:54 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (handle_fork_error): Make try_gc_p argument volatile to
+	  suppress "clobbered" warning.
+
+Fri Sep  5 20:48:06 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (handle_fork_error): Don't need state_p argument.
+
+Fri Sep  5 20:35:52 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (has_privilege): Fix a return value.
+
+Fri Sep  5 19:00:40 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/shellwords.rb: proofreading documentation.
+	  [Bug #10155][ruby-core:64471]
+
+Fri Sep  5 18:34:33 2014  Laurent Arnoud  <laurent@spkdev.net>
+
+	* test/csv/test_row.rb: Added some missing tests in CSV.
+	  [fix GH-710]
+	* test/csv/test_table.rb: ditto.
+
+Fri Sep  5 12:57:52 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (has_privilege): Refine uid/gid check.
+
+Fri Sep  5 12:40:55 2014  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Check sys/id.h, getuidx and getgidx for AIX.
+
+	* process.c (getresuid): Defined for AIX.
+	  (getresgid): Ditto
+	  AIX don't have getresuid/getresgid but getuidx/getgidx.
+
+Fri Sep  5 12:28:21 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (has_privilege): Fix assignments.
+
+Fri Sep  5 11:10:13 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/rdoc/generator/pot/po.rb: fixed broken tests for trailing whitespace.
+	* test/rdoc/test_rdoc_generator_pot.rb: ditto.
+	* test/rdoc/test_rdoc_generator_pot_po.rb: ditto.
+
+Fri Sep  5 10:41:07 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/rdoc/test_rdoc_rdoc.rb (TestRDocRDoc#test_parse_file_encoding):
+	  typofix.
+
+Fri Sep  5 10:39:14 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/rdoc.rb, lib/rdoc, test/rdoc: Update to RDoc 4.2.0.alpha(313287)
+
+Fri Sep  5 06:04:22 2014  Eric Wong  <e@80x24.org>
+
+	* vm.c: remove unused USE_THREAD_RECYCLE [misc #10198]
+
+Fri Sep  5 00:29:08 2014  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in (dirfd): Check function.
+
+	* dir.c (dir_fileno): New method.
+	  [ruby-dev:48265] [Feature #9880]
+
+Thu Sep  4 23:39:52 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (has_privilege): New function.
+	  (retry_fork_async_signal_safe): Don't use vfork() for privileged
+	  process.
+
+	* configure.in (getresuid): Check function.
+	  (getresgid): Ditto.
+
+Thu Sep  4 20:22:14 2014  Laurent Arnoud  <laurent@spkdev.net>
+
+	* test/pathname/test_pathname.rb: added testcase for Pathname#mountpoint?.
+	  [fix GH-709]
+
+Thu Sep  4 20:09:21 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* symbian/*: removed Symbian support.
+	  [Feature #10199][ruby-core:64725]
+	* dln.c: ditto.
+	* include/ruby/defines.h: ditto.
+	* thread_pthread.c: ditto.
+	* vm.c: ditto.
+
+Thu Sep  4 17:44:40 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* dir.c (glob_helper): use #ifdef instead of #if.
+	  gcc's -Wundef option shows warning for undefined macro.
+
+	* numeric.c (flo_is_finite_p): ditto.
+
+	* vm_dump.c (rb_vmdebug_thread_dump_state): ditto.
+
+	* vm_core.h: define VM_DEBUG_VERIFY_METHOD_CACHE to 0.
+
+Thu Sep  4 03:57:46 2014  Eric Wong  <e@80x24.org>
+
+	* man/ruby.1: spelling fix ("bellow" => "below") [ci-skip]
+
+Thu Sep  4 03:52:16 2014  Eric Wong  <e@80x24.org>
+
+	* man/ruby.1: add trailing slash to URLs [ci-skip]
+
+Wed Sep  3 19:10:28 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (before_fork_ruby): Renamed from before_fork.
+	  (after_fork_ruby): Renamed from after_fork.
+
+Wed Sep  3 18:56:05 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (forked_child): Removed.
+
+Wed Sep  3 16:56:07 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_obj_copy_ivar): allocate no memory for empty
+	  instance variables.  [ruby-core:64700] [Bug #10191]
+
+Wed Sep  3 12:05:17 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (retry_fork_async_signal_safe): Use vfork() if available.
+	  vfork() is still faster than fork() especially when the parent
+	  process uses big memory.
+
+	  ruby -rbenchmark -e 'a = "a" * 1_000_000_000; puts Benchmark.measure { system("true") }'
+	  fork:   0.000000   0.010000   0.010000 (  0.014968)
+	  vfork:  0.000000   0.000000   0.000000 (  0.000912)
+	  on Debian sid.
+
+Wed Sep  3 11:33:08 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/openssl/test_pkey_rsa.rb (OpenSSL#test_sign_verify_memory_leak):
+	  added timeout into testcase for low performance environment.
+	  [Bug #9984][ruby-core:63367]
+
+Wed Sep  3 07:50:15 2014  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Use AC_FUNC_FORK.
+
+	* io.c: Use HAVE_WORKING_FORK instead of HAVE_FORK.
+
+	* process.c: Ditto.
+
+Wed Sep  3 00:12:44 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (retry_fork_async_signal_safe): Don't return on in child
+	  process.
+
+Tue Sep  2 23:47:35 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (retry_fork_async_signal_safe): Specialized version of
+	  retry_fork respect to rb_fork_async_signal_safe.
+	  (retry_fork_ruby): Specialized version of retry_fork respect to
+	  rb_fork_ruby.
+	  (rb_fork_ruby): Removed.
+
+Tue Sep  2 23:26:26 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (send_child_error): Simplified.
+	  (recv_child_error): Ditto.
+
+Tue Sep  2 22:56:25 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_fork_async_signal_safe): Inline rb_fork_internal.
+	  (rb_fork_ruby): Ditto.
+	  (rb_fork_internal): Removed.
+	  (chfunc_protect): Removed.
+
+Tue Sep  2 22:43:52 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_io.rb (test_new_with_block): Set autoclose to avoid
+	  EBADF.
+
+Tue Sep  2 22:01:51 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* Makefile.in (update-coverage): Remove a never executed line.
+
+Tue Sep  2 19:48:26 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (handle_fork_error): Extracted from retry_fork.
+
+Tue Sep  2 17:02:53 2014  Vit Ondruch  <v.ondruch@tiscali.cz>
+
+	* tool/rbinstall.rb: fixed error of local installation.
+	  [Bug #10192][ruby-core:64702]
+
+Tue Sep  2 16:58:03 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/runner.rb: reporting test coverage for test-all with COVERAGE env.
+	  [Feature #10189][ruby-core:64681][fix GH-708]
+	* Makefile.in: added task for coverage report.
+	* common.mk: added definition of forked simplecov url.
+	* .gitignore: ignored coverage directory.
+
+Mon Sep  1 20:11:02 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (rbtime2vtdate): try to convert millisecond
+	  of Time object to millisecond of VT_DATE VARIANT.
+	* test/win32ole/test_win32ole_variant.rb
+	  (test_conversion_time2date_with_msec): ditto.
+
+Sun Aug 31 16:58:49 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/benchmark.rb: Fix a syntax error.
+
+Sun Aug 31 08:46:44 2014  Eric Wong  <e@80x24.org>
+
+	* ext/zlib/zlib.c (gzfile_reset): preserve ZSTREAM_FLAG_GZFILE
+	  [Bug #10101]
+
+	* test/zlib/test_zlib.rb (test_rewind): test each_byte
+
+Sat Aug 30 19:22:47 2014  Eric Wong  <e@80x24.org>
+
+	* symbol.c (rb_sym2id): do not return garbage object
+
+Sat Aug 30 06:39:48 2014  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: fix NameError dumping and
+	  loading. Fixes GH #85. Thanks @brentdax for the patch!
+	* test/psych/test_exception.rb: test for fix
+
+Sat Aug 30 06:23:40 2014  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/scalar_scanner.rb: fix loading strings that
+	  look like integers but have a newline. Fixes GH #189
+	* test/psych/test_string.rb: test for fix
+
+Sat Aug 30 06:10:39 2014  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: merge keys with a hash
+	  should merge the hash in to the parent.
+	* test/psych/test_merge_keys.rb: test for change. Fixes GH #202
+
+Sat Aug 30 06:00:26 2014  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: quoted "<<" strings
+	  should not be treated as merge keys.
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: hashes with keys
+	  containing "<<" should roundtrip.
+	* test/psych/test_merge_keys.rb: test for change. Fixes GH #203
+
+Fri Aug 29 17:56:44 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/net/imap/test_imap_response_parser.rb: removed needless code.
+
+Fri Aug 29 17:36:58 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/rinda/test_rinda.rb: removed useless assignment variables.
+	* test/rss/rss-assertions.rb: ditto.
+	* test/rss/test_maker_itunes.rb: ditto.
+
+Fri Aug 29 16:18:26 2014  Eric Wong  <e@80x24.org>
+
+	* string.c: revert part of r47311, add rb_vm_fstring_table(),
+	  remove vm_core.h dependency. [ruby-core:64627]
+
+Fri Aug 29 15:17:13 2014  Eric Wong  <e@80x24.org>
+
+	* string.c: remove static frozen_strings
+	* string.c (Init_frozen_strings): new function
+	* string.c (rb_fstring): remove check for frozen strings,
+	  use per-VM table
+	* string.c (rb_str_free): use per-VM table
+	* string.c (Init_String): use per-VM table
+	* vm_core.h (rb_vm_t): add frozen_strings table
+	* internal.h (Init_frozen_strings): new function prototype
+	* eval.c (ruby_setup): call Init_frozen_strings
+	  [Feature #10182]
+
+Wed Aug 27 23:10:24 2014  Masaki Matsushita <glass.saga@gmail.com>
+
+	* lib/tempfile.rb: remove "require 'thread'". its features are no
+	  longer used.
+
+Wed Aug 27 21:19:40 2014  gogo tanaka  <mail@tanakakazuki.com>
+
+	* lib/drb/acl.rb: Removed meaningless #to_s methods in interpolation.
+	  [Feature #10174][ruby-core:64584]
+	* lib/erb.rb: ditto.
+	* lib/observer.rb: ditto.
+	* lib/rake/invocation_chain.rb: ditto.
+	* lib/rubygems/command_manager.rb: ditto.
+	* lib/rubygems/config_file.rb: ditto.
+	* lib/uri/common.rb: ditto.
+
+Wed Aug 27 21:08:20 2014  gogo tanaka  <mail@tanakakazuki.com>
+
+	* lib/drb/drb.rb: use attr_reader instead of Module#attr.
+	  [Feature #10172][ruby-core:64582]
+	* lib/irb/ruby-token.rb: ditto.
+	* lib/net/telnet.rb: ditto.
+	* lib/rdoc/ruby_token.rb: ditto.
+	* lib/thwait.rb: ditto.
+
+Wed Aug 27 19:52:33 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (vtdate2rbtime): try to convert millisecond
+	  of VT_DATE VARIANT to nsec of Time object.
+	* test/win32ole/test_win32ole_variant.rb
+	  (test_conversion_dbl2date_with_msec): ditto.
+
+Wed Aug 27 09:57:29 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/ruby/test_complex.rb: removed unreachable code.
+	* test/ruby/test_rational.rb: ditto.
+
+Wed Aug 27 07:59:17 2014  Eric Wong  <e@80x24.org>
+
+	* compile.c (iseq_set_sequence): check for multiplication overflow
+
+Tue Aug 26 22:07:42 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/ruby/test_complex.rb: cherry-picked working assertions from r47251.
+	* test/ruby/test_rational.rb: cherry-picked working assertions from r47263.
+
+Tue Aug 26 21:07:56 2014  gogo tanaka  <mail@tanakakazuki.com>
+
+	* lib/mathn.rb (Fixnum#**, Bignum#**, Float#**, Rational#**):
+	  remove as these are now built-in.  [ruby-core:63973] [Bug #10086]
+
+Tue Aug 26 20:46:55 2014  Tanaka Akira  <akr@fsij.org>
+
+	* time.c (rb_time_unmagnify_to_float): Avoid double rounding.
+	  Reported by Tsuyoshi Sawada.
+	  https://bugs.ruby-lang.org/issues/10135#note-1
+
+Tue Aug 26 17:12:47 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (io_close): ignore only "closed stream" IOError and
+	  NoMethodError, do not swallow other exceptions at the end of
+	  block.  [ruby-core:64463] [Bug #10153]
+
+Tue Aug 26 13:46:33 2014  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* template/fake.rb.in: fix failed to make install when @srcdir@ is
+	  absolute path.
+
+Tue Aug 26 13:43:50 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/ruby/test_range.rb: added workaround for VERBOSE message.
+
+Tue Aug 26 12:38:02 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/test_mathn.rb: added workaround for VERBOSE messages.
+
+Tue Aug 26 11:44:04 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/shell/process-controller.rb: removed commented-out code.
+
+Tue Aug 26 11:39:01 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/thwait.rb (ThreadsWait): removed needless constant.
+
+Tue Aug 26 09:27:10 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/mathn.rb: mathn library is deprecated on ruby 2.2.
+	  [Feature #10169][ruby-core:64553]
+
+Tue Aug 26 09:25:03 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/mathn.rb: removed commented-out code.
+
+Mon Aug 25 20:15:50 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c(fole_s_connect, fole_initialize): raise a
+	  security error with the tainted string object.
+	* ext/win32ole/win32ole_event.c(ev_advise): ditto.
+	* test/win32ole/test_win32ole.rb(test_s_new_exc_svr_tainted,
+	  test_s_new_exc_host_tainted): ditto.
+	* test/win32ole/test_win32ole_event.rb(test_s_new_exc_tainted): ditto.
+
+Mon Aug 25 12:56:54 2014  Ivan Korunkov  <ivankorunkov@ya.ru>
+
+	* lib/logger.rb (format_datetime): use "%6N" to show microsecond.
+	  [Fix GH-704]
+
+Mon Aug 25 11:02:07 2014  Eric Wong  <e@80x24.org>
+
+	* vm_core.h (rb_iseq_location_t): change first_lineno type to VALUE
+	* iseq.c (rb_iseq_build_for_ruby2cext): update based on argument
+
+Sun Aug 24 16:14:46 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/e2mmap.rb: remove needless instance variables.
+	* lib/irb.rb: ditto.
+	* lib/irb/**/*.rb: ditto.
+	* lib/shell.rb: ditto.
+
+Sun Aug 24 12:44:26 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/ruby/test_complex.rb: removed needless conditions.
+	* test/ruby/test_rational.rb: ditto.
+
+Sun Aug 24 11:47:39 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/ruby/test_rational.rb: fixed indent.
+
+Sun Aug 24 11:44:11 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/ruby/test_rational.rb: remove commented-out code.
+
+Sun Aug 24 11:09:29 2014  Eric Wong  <e@80x24.org>
+
+	* lib/benchmark.rb (measure): reduce allocations as in r47260
+
+Sun Aug 24 10:35:54 2014  Pete Higgins  <pete@peterhiggins.org>
+
+	* lib/benchmark.rb (module Benchmark): define BENCHMARK_CLOCK
+	  (realtime): use Process.clock_gettime(BENCHMARK_CLOCK)
+	  Reduces allocations to improve performance [Feature #10165]
+
+	* test/benchmark/test_benchmark.rb (test_realtime_output): new test
+
+Fri Aug 22 20:23:54 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* string.c (rb_fstring): fix condition (easy to cause infinite loop!).
+
+Fri Aug 22 20:07:43 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* string.c (rb_fstring, fstr_update_callback): simply delete garbage
+	  key first.
+
+	  Garbage keys can be swept by lazy sweeping invoked by creating new
+	  fstring.  So that simply do:
+	  (1) delete garbage key and return `fstr_update_callback' immediately
+	  (2) try again `fstr_update_callback()' to create a new fstr.
+
+	  This bug can be cause memory corruption, reported by
+	  http://u64.rubyci.org/~chkbuild/ruby-trunk/log/20140821T220302Z.fail.html.gz
+
+Fri Aug 22 19:30:39 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/ruby/test_complex.rb: removed commented-out code.
+
+Fri Aug 22 19:25:28 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/ruby/test_complex.rb: fixed broken tests. Math is not
+	  compatible CMath now.
+
+Fri Aug 22 15:36:09 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (Doxyfile): revert r43888, not to require preinstalled
+	  ruby.  [ruby-core:64488] [Bug #10161]
+
+Fri Aug 22 12:32:15 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/shell.rb: removed commented-out code.
+	* lib/shell/builtin-command.rb: ditto.
+	* lib/shell/command-processor.rb: ditto.
+
+Fri Aug 22 12:21:46 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/complex.rb: removed deprecated library.
+	* lib/rational.rb: ditto.
+
+Fri Aug 22 11:38:49 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/prettyprint.rb: removed PrettyPrint#first?
+	  because it is obsoleted method since Ruby 1.8.2
+
+Thu Aug 21 17:10:31 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (constat_attr): manage reverse video internally
+	  since Windows console window does not manage it.  based on the
+	  patch by white leaf in [ruby-dev:48483].  [Bug #10158]
+
+Thu Aug 21 14:45:41 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/e2mmap.rb: removed commented-out code.
+
+Thu Aug 21 13:23:34 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/rinda/ring.rb: split executable code into sample directory.
+	* sample/rinda-ring.rb: ditto.
+
+Thu Aug 21 13:21:45 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/drb/acl.rb: split executable code into sample directory.
+	* sample/drb/acl.rb: ditto.
+
+Thu Aug 21 12:55:35 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* .gitignore: ignored temporary file for Changelog.
+	  http://mkosaki.blog46.fc2.com/blog-entry-1284.html
+
+Thu Aug 21 12:40:22 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/net/imap.rb: split executable code into sample directory.
+	* sample/net-imap.rb: ditto.
+
+Thu Aug 21 12:23:56 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/net/imap.rb: removed commented-out code.
+
+Wed Aug 20 17:27:02 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (RUBY_TRY_CFLAGS, RUBY_TRY_LDFLAGS),
+	  (RUBY_CHECK_BUILTIN_SETJMP, RUBY_SETJMP_TYPE),
+	  (RUBY_STACK_GROW_DIRECTION): quote defun names, for some
+	  versions of autoconf possibly.  [ruby-core:64473] [Bug #10156]
+
+Tue Aug 19 22:28:32 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* sprintf.c (rb_str_format): fix condition to round.
+	  [ruby-core:64454] [Bug #10151]
+
+Tue Aug 19 22:22:45 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enc/trans/euckr-tbl.rb (EUCKR_TO_UCS_TBL): add missing euro and
+	  registered signs.  [ruby-core:64452] [Bug #10149]
+
+Tue Aug 19 13:59:43 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compar.c (rb_cmperr): preserve encodings of arguments in the
+	  message.
+
+Tue Aug 19 10:13:23 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/thread/thread.c (get_array): check instance variables are
+	  initialized properly.  [ruby-core:63826][Bug #10062]
+
+Mon Aug 18 17:06:27 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* sprintf.c (rb_str_format): support rational 'f' format.
+	  [ruby-core:64382] [Bug #10136]
+
+Mon Aug 18 08:03:46 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* spec/default.mspec: use 2.2 definition.
+
+Sun Aug 17 19:41:40 2014  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* gc.c (obj_memsize_of): don't calculate memsize of T_NODE
+	  when called from check_gen_consistency. It fixes segmentation
+	  fault on RGENGC_CHECK_MODE >= 1 introduced by r47188.
+
+Sun Aug 17 17:08:12 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (ole_invoke): use RHASH_SIZE instead of
+	  calling Hash#length method.
+
+Sat Aug 16 19:32:06 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole_event.c (evs_length): use RARRAY_LEN instead
+	  of calling Array#length method.
+
+Sat Aug 16 10:20:17 2014  Eric Wong  <e@80x24.org>
+
+	* time.c (time_timespec): fix tv_nsec overflow
+	  [Bug #10144]
+
+Fri Aug 15 20:34:17 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: separate WIN32OLE_EVENT src from
+	  win32ole.c.
+	* ext/win32ole/win32ole.h: ditto.
+	* ext/win32ole/win32ole_event.c: ditto.
+	* ext/win32ole/win32ole_event.h: ditto.
+	* ext/win32ole/depend: ditto.
+
+Fri Aug 15 19:38:00 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* iseq.c (rb_iseq_clone): Should not insert write barrier from
+	  non-RVALUE data (to non-RVALUE data, of course).
+
+	  Ruby 2.1 also has a same problem.
+
+Fri Aug 15 19:34:33 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* string.c (setup_fake_str): fake strings should not set class by
+	  RBASIC_SET_CLASS() because it insert write barriers to fake
+	  (non-RVALUE) structure.
+
+	  It can cause unexpected behaviour.
+
+	  Ruby 2.1 also have a same problem (setup_fake_str() in parse.y).
+
+	* symbol.c (setup_fake_str): ditto.
+
+Fri Aug 15 19:27:25 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (rb_ary_tmp_new_fill): added.
+	  This function creates internal use only array (which is completely
+	  hided by ObjectSpace.each_object) with filling nil.
+
+	  Otherwise, it can be includes strange VALUEs.
+
+	* internal.h: added.
+
+	* node.h: use rb_ary_tmp_new_fill() for MEMO.
+
+Fri Aug 15 10:13:37 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/gserver.rb: removed unmaintained code.
+	  [ruby-core:40313][Feature #5480]
+	* lib/xmlrpc/httpserver.rb: ditto.
+
+Fri Aug 15 09:22:12 2014  Eric Wong  <e@80x24.org>
+
+	* vm_core.h (rb_thread_struct): reorder to pack
+	* cont.c (rb_context_struct, rb_fiber_struct): ditto
+	  On x86-64, these changes reduces:
+	  rb_thread_struct to 1000 bytes (from 1016)
+	  rb_context_struct to 1288 bytes (from 1312)
+	  rb_fiber_struct to 2272 bytes (from 2304)
+
+Fri Aug 15 09:06:31 2014  Eric Wong  <e@80x24.org>
+
+	* thread_pthread.h: define RB_NATIVETHREAD_LOCK_INIT and
+	  RB_NATIVETHREAD_COND_INIT macros
+
+	* thread_pthread.c (native_mutex_lock, native_mutex_unlock,
+	  native_mutex_trylock, native_mutex_initialize,
+	  native_mutex_destroy, native_cond_wait):
+	  use rb_nativethread_lock_t instead of pthread_mutex_t
+	  [Feature #10134]
+
+	* thread_pthread.c (native_mutex_debug): make argument type-agnostic
+	  to avoid later cast.
+
+	* thread_pthread.c (register_cached_thread_and_wait):
+	  replace PTHREAD_COND_INITIALIZER with RB_NATIVETHREAD_COND_INIT,
+	  use native_mutex_{lock,unlock}
+
+	* thread_pthread.c (use_cached_thread):
+	  use native_mutex_{lock,unlock}
+
+	* thread_pthread.c (native_sleep):
+	  use rb_nativethread_lock_t to match th->interrupt_lock,
+	  use native_mutex_{lock,unlock}
+
+	* thread_pthread.c (timer_thread_lock): use rb_nativethread_lock_t type
+
+Fri Aug 15 08:10:29 2014  Eric Wong  <e@80x24.org>
+
+	* cont.c (cont_mark): fix typo in unused path [ci skip]
+
+Fri Aug 15 06:00:56 2014  Eric Wong  <e@80x24.org>
+
+	* vm.c (rb_thread_mark): update comment about marking `me'
+	  [ruby-core:64340] [ruby-core:64341]
+
+Fri Aug 15 05:53:59 2014  Eric Wong  <e@80x24.org>
+
+	* README.EXT: preliminary documentation for RB_GC_GUARD
+	  [Bug #10100] [ruby-core:60741]
+
+Thu Aug 14 00:26:19 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: separate WIN32OLE_RECORD src from
+	  win32ole.c
+	* ext/win32ole/win32ole.h: ditto.
+	* ext/win32ole/win32ole_record.c: ditto.
+	* ext/win32ole/win32ole_record.h: ditto.
+	* ext/win32ole/depend: ditto.
+
+Wed Aug 13 21:41:04 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: separate WIN32OLE_VARIANT src from
+	  win32ole.c.
+	* ext/win32ole/win32ole.h: ditto.
+	* ext/win32ole/win32ole_variant.c: ditto.
+	* ext/win32ole/win32ole_variant.c: ditto.
+	* ext/win32ole/depend: ditto.
+
+Wed Aug 13 20:09:37 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: remove unused variable.
+
+Wed Aug 13 19:31:27 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (ole_search_handler_method, rescue_callback,
+	  folerecord_inspect): use PRIsVALUE in rb_sprintf.
+
+	* ext/win32ole/win32ole_param.c (foleparam_inspect): ditto.
+
+	* ext/win32ole/win32ole_variable.c (folevariable_inspect): use
+	  PRIsVALUE in rb_sprintf, use rb_inspect.
+
+Wed Aug 13 11:54:41 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/irb/completion.rb: reverted r47163.
+	  because another case can't be show completion target.
+
+Wed Aug 13 11:17:00 2014  Shimpei Makimoto  <github@makimoto.org>
+
+	* lib/irb.rb: Prevent irb from crashing when exception with
+	  nil backtrace is raised.
+	  [fix GH-434][ruby-core:58078][Bug #9063]
+	* test/irb/test_raise_no_backtrace_exception.rb: ditto.
+
+Wed Aug 13 11:08:55 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/irb/completion.rb: fixed broken completion list with
+	  String including spaces. Contributed from @dunric. [fix GH-465]
+
+Wed Aug 13 00:07:01 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: separate WIN32OLE_PARAM src from win32ole.c
+	* ext/win32ole/win32ole.h: ditto.
+	* ext/win32ole/win32ole_param.c: ditto.
+	* ext/win32ole/win32ole_param.h: ditto.
+	* ext/win32ole/depend: ditto.
+
+Tue Aug 12 23:17:47 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: refactoring. move some methods
+	  into win32ole_type.c / win32ole_method.c
+	* ext/win32ole/win32ole.h: ditto.
+	* ext/win32ole/win32ole_method.c: ditto.
+	* ext/win32ole/win32ole_method.h: ditto.
+	* ext/win32ole/win32ole_type.h: ditto.
+	* ext/win32ole/win32ole_type.h: ditto.
+
+Tue Aug 12 22:59:48 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: refactoring. move
+	  ole_typelib_from_itypeinfo into win32ole_typelib.c.
+	* ext/win32ole/win32ole.h: ditto.
+	* ext/win32ole/win32ole_typelib.h: ditto.
+	* ext/win32ole/win32ole_typelib.h: ditto.
+
+Tue Aug 12 21:49:40 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (ole_create_dcom): use the converted
+	  result if the argument can be converted to a string, to get rid
+	  of invalid access. Thanks to nobu. [ruby-dev:48467] [Bug #10127]
+
+Tue Aug 12 14:22:58 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* configure.in: ignored working directory same as prefix value.
+	  [ruby-core:54999] [Bug #8409]
+
+Tue Aug 12 13:34:25 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/fileutils.rb: enable to remove with non-owner directory.
+	  [ruby-dev:45976] [Bug #6756]
+	* test/fileutils/test_fileutils.rb: add testcase for #6756.
+
+Tue Aug 12 12:57:28 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* vm_exec.c: improve performance in ppc64 arch.
+	  [ruby-core:63437] [Feature #9997]
+
+Tue Aug 12 12:14:52 2014  Akira Matsuda <ronnie@dio.jp>
+
+	* lib/fileutils.rb: fix typo.
+	  [ruby-dev:47831] [Bug #9180]
+
+Tue Aug 12 10:10:42 2014  Eric Wong  <e@80x24.org>
+
+	* vm_method.c (release_method_definition): use rb_free_method_entry
+
+Tue Aug 12 06:16:09 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: separate WIN32OLE_METHOD src from
+	  win32ole.c.
+	* ext/win32ole/win32ole.h: ditto.
+	* ext/win32ole/win32ole_method.c: ditto.
+	* ext/win32ole/win32ole_method.h: ditto.
+	* ext/win32ole/depend: ditto.
+
+Mon Aug 11 22:19:15 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole_variable.c (folevariable_inspect): refactoring.
+
+Mon Aug 11 20:47:27 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: separate WIN32OLE_VARIABLE src from
+	  win32ole.c
+	* ext/win32ole/win32ole.h: ditto.
+	* ext/win32ole/win32ole_variable.c: ditto.
+	* ext/win32ole/win32ole_variable.h: ditto.
+	* ext/win32ole/depend: ditto.
+
+Mon Aug 11 16:17:21 2014  Tony Miller  <mcfiredrill@gmail.com>
+
+	* dir.c (rb_dir_exists_p): [DOC] Document that Dir.exists? is
+	  deprecated.  [ruby-core:64135] [Bug #10102]
+
+Mon Aug 11 11:26:33 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/tempfile.rb: start rdoc parsing inside singleton class
+	  definition to include the document there.
+	  [ruby-core:64157] [Bug #10105]
+
+Sun Aug 10 12:22:43 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole_type.c: refactoring.
+
+Sun Aug 10 10:34:00 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/cgi/session/pstore.rb: separated sample code.
+	* lib/open3.rb: ditto.
+
+Sun Aug 10 10:03:24 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/irb/ext/multi-irb.rb: removed commented-out code.
+
+Sat Aug  9 11:02:07 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/irb.rb: removed commented-out code.
+	* lib/irb/**/*.rb: ditto.
+
+Sat Aug  9 10:35:30 2014  Laurent Arnoud  <laurent@spkdev.net>
+
+	* lib/cmath.rb: fixed indent. [fix GH-696]
+	* lib/drb/ssl.rb: ditto.
+	* lib/irb/**/*.rb: ditto.
+
+Sat Aug  9 10:28:03 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/minitest/test_minitest_unit.rb: removed obsoleted condition
+	  for Ruby 1.8.
+	* test/ruby/test_time_tz.rb: ditto.
+
+Sat Aug  9 10:18:00 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/cgi/test_cgi_core.rb: removed obsoleted condition for Ruby 1.8.
+	* test/cgi/test_cgi_header.rb: ditto.
+	* test/cgi/test_cgi_multipart.rb: ditto.
+	* test/cgi/test_cgi_tag_helper.rb: ditto.
+
+Sat Aug  9 00:34:37 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: separate WIN32OLE_TYPE src from win32ole.c.
+	* ext/win32ole/win32ole.h: ditto.
+	* ext/win32ole/win32ole_type.c: ditto.
+	* ext/win32ole/win32ole_type.h: ditto.
+	* ext/win32ole/depend: ditto.
+
+Fri Aug  8 01:53:37 2014  Masaki Matsushita <glass.saga@gmail.com>
+
+	* lib/securerandom.rb: use OpenSSL::BN for performance improvement.
+
+	* benchmark/bm_securerandom.rb: benchmark script.
+
+Fri Aug  8 17:19:57 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/open-uri.rb: remove needless condition for old ruby version.
+	* test/open-uri/test_open-uri.rb: ditto.
+
+Fri Aug  8 16:40:59 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/irb/init.rb: removed unreachable code.
+
+Fri Aug  8 16:34:22 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/drb/drb.rb: removed unreachable code.
+
+Fri Aug  8 14:33:49 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/webrick/httpproxy.rb: remove needless condition
+	  for old ruby version.
+
+Fri Aug  8 01:07:10 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_yylex): fix invalid char in eval, should raise
+	  an syntax error too, as well as directly coded.
+	  [ruby-core:64243] [Bug #10117]
+
+Thu Aug  7 23:25:29 2014  Masaki Matsushita <glass.saga@gmail.com>
+
+	* lib/open3.rb: avoid unnecessary write if stdin_data is empty.
+
+Thu Aug  7 21:42:49 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole_typelib.c (foletypelib_version): return
+	  version string.
+
+	* test/win32ole/test_win32ole_typelib.rb (test_version): ditto.
+
+Thu Aug  7 15:13:13 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/cgi.rb: remove needless condition for old ruby version.
+
+Thu Aug  7 06:04:49 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_yyerror): preserve source code encoding in
+	  syntax error messages.  [ruby-core:64228] [Bug #10114]
+
+Wed Aug  6 20:56:02 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: separate src of WIN32OLE_TYPELIB from
+	  win32ole.c
+
+	* ext/win32ole/win32ole.h: ditto.
+	* ext/win32ole/win32ole_typelib.c: ditto.
+	* ext/win32ole/win32ole_typelib.h: ditto.
+	* ext/win32ole/depend: ditto.
+
+Wed Aug  6 20:44:07 2014  Akinori MUSHA  <knu@iDaemons.org>
+
+	* enum.c (enum_one): [DOC] Move enum.one? documentation before the
+	  relevant method.  Submitted by @vipulnsward. [Fixes GH-687]
+	  https://github.com/ruby/ruby/pull/687
+
+Wed Aug  6 20:25:47 2014  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/set.rb (Set#replace): Check if an object given is enumerable
+	  before clearing self.  Reported by yui-knk. [GH-675]
+	  https://github.com/ruby/ruby/pull/675
+
+Wed Aug  6 20:07:26 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (olerecord_ivar_set): remove rb_str_subseq.
+
+Wed Aug  6 19:09:27 2014  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/set.rb (Set): Implement Set#clone by splitting
+	  initialize_copy into initialize_dup and initialize_clone.
+	  Submitted by yui-knk. [Fixes GH-661]
+	  https://github.com/ruby/ruby/pull/661
+
+Wed Aug  6 18:42:58 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: separate src of WIN32OLERuntimeError
+	  from win32ole.c.
+
+	* ext/win32ole/win32ole.h: ditto
+	* ext/win32ole/depend: ditto.
+	* ext/win32ole/win32ole_error.c: ditto.
+	* ext/win32ole/win32ole_error.h: ditto.
+
+Wed Aug  6 04:33:58 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http.rb (Net::HTTP.proxy_uri): use initializer instead
+	  of parser to handle IPv6 address. [Bug #9129]
+
+Wed Aug  6 04:16:05 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http/requests.rb (Net::HTTP::Options::RESPONSE_HAS_BODY):
+	  OPTIONS requests may have response bodies. [Feature #8429]
+	  http://tools.ietf.org/html/rfc7231#section-4.3.7
+
+Wed Aug  6 03:18:04 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http/generic_request.rb (Net::HTTP::GenericRequest#exec):
+	  handle req['host'] in update_uri.
+
+	* lib/net/http/generic_request.rb
+	  (Net::HTTP::GenericRequest#update_uri):
+	  use req['host'] if it is explicitly set. Even if URI is given,
+	  it is already used for the initial value of req['host'].
+	  Therefore overwritten value should be respected. [Bug #10054]
+
+Wed Aug  6 03:17:34 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http/generic_request.rb
+	  (Net::HTTP::GenericRequest#update_uri):
+	  handle scheme, host, and port to reflect connection to @uri.
+
+	* lib/net/http.rb (Net::HTTP#begin_transport): move trivial handling
+	  to Net::HTTP::GenericRequest#update_uri.
+
+
+Wed Aug  6 02:16:43 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http/generic_request.rb
+	  (Net::HTTP::GenericRequest#initialize):
+	  optimize object allocation.
+
+Wed Aug  6 01:16:47 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/generic.rb (URI::Generic#path_query): remove a private method.
+
+Wed Aug  6 01:15:47 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/generic.rb (URI::Generic#normalize!): use String#empty?
+
+	* lib/uri/generic.rb (URI::Generic#path_query): optimized.
+
+	* lib/uri/generic.rb (URI::Generic#to_s): optimized.
+
+Wed Aug  6 00:15:10 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/http.rb (URI::HTTP#request_uri): optimized.
+	  decrease object allocation, and ensure always create at least one new
+	  object for return value.
+
+Wed Aug  6 03:41:21 2014  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: backwards compatibility for
+	  hashes emitted by Syck. Github #198
+	* test/psych/test_hash.rb: test for change.
+
+Tue Aug  5 19:27:59 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (ole_invoke): skip VariantClear when
+	  argument is VT_RECORD variant.
+
+Tue Aug  5 15:52:51 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* gems/bundled_gems: Upgrade to test-unit-3.0.0 and minitest-5.4.0.
+
+Mon Aug  4 21:50:09 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* test/win32ole/test_win32ole_record.rb: add for WIN32OLE_RECORD
+	  test(need .NET Framework 3.5 to run test).
+
+Mon Aug  4 19:49:34 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (ole_invoke): call rb_hash_foreach instead
+	  of rb_block_call.
+
+	* ext/win32ole/win32ole.c: add comment for rdoc of WIN32OLE_VARIANT
+	  class.
+
+Mon Aug  4 09:12:47 2014  Eric Wong  <e@80x24.org>
+
+	* variable.c: cleanup to use rb_const_lookup
+	  [Feature #10107]
+
+	* vm_insnhelper.c: ditto
+
+Sun Aug  3 10:55:07 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/encoding.h (rb_check_symbol_cstr): ditto.
+
+Sun Aug  3 10:43:08 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_call_method): unusable super class should cause
+	  method missing when BasicObject is refined but not been using.
+	  [ruby-core:64166] [Bug #10106]
+
+Sat Aug  2 23:47:45 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: separate WIN32OLE::VARIANT src file
+	  from win32ole.c
+	* ext/win32ole/win32ole.h: ditto.
+	* ext/win32ole/win32ole_variant_m.c: ditto.
+	* ext/win32ole/win32ole_variant_m.h: ditto.
+	* ext/win32ole/depend: ditto.
+	* ext/.document: ditto.
+
+Sat Aug  2 14:34:58 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: add comments for rdoc.
+
+Sat Aug  2 10:26:57 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_obj_itself): new method Object#itself.  based on the
+	  patch by Rafael Franca in [ruby-core:64156].
+	  [EXPERIMENTAL] this method may be renamed due to compatibilities.
+	  [ruby-core:44704] [Feature #6373]
+
+Fri Aug  1 22:30:40 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (folerecord_initialize): accept
+	  only 2 arguments. The 2nd argument should be WIN32OLE object or
+	  WIN32OLE_RECORD object.
+
+Fri Aug  1 20:17:33 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (ole_variant2val): call
+	  folerecord_s_allocate instead of WIN32OLE_RECORD.new.
+
+Fri Aug  1 18:39:57 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/date/test_date.rb: remove commented-out code.
+	* test/date/test_date_arith.rb: ditto.
+	* test/date/test_date_attr.rb: ditto.
+	* test/date/test_date_parse.rb: ditto.
+
+Fri Aug  1 16:35:32 2014  Evan Miller  <evan@squareup.com>
+
+	* numeric.c (flodivmod): all results are NaN if divisor is NaN.
+	  [fix GH-692]
+
+Thu Aug 01 07:28:12 2014  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c: [DOC] Add description of
+	  `BigDecimal.new` exceptions.  Patched by @joker1007 and
+	  @prathamesh-sonpatki [Fixes GH-690]
+	  https://github.com/ruby/ruby/pull/690
+
+Thu Jul 31 22:20:12 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: add WIN32OLE_RECORD#inspect.
+
+Thu Jul 31 20:35:32 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: add
+	  WIN32OLE_RECORD#ole_instance_variable_set and
+	  WIN32OLE_RECORD#ole_instance_variable_get
+
+Wed Jul 30 23:28:10 2014  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* sprintf.c (rb_str_format): like r47006, get rid of
+	  function calls in RSTRING_PTR().
+
+Wed Jul 30 22:10:29 2014  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* process.c (rlimit_resource_type, rlimit_resource_value):
+	  get rid of inadvertent dynamic symbol pin-down.
+
+	* re.c (match_backref_number): ditto.
+
+	* signal.c (esignal_init, rb_f_kill, trap_signm): ditto.
+
+	* transcode.c (econv_opts): ditto.
+
+	* vm_trace.c (symbol2event_flag): ditto.
+
+Wed Jul 30 21:29:39 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (ole_invoke): pass WIN32OLE_RECORD variant
+	  by reference when invoke OLE methods at first.
+
+	* ext/win32ole/win32ole.c (olerecord_set_ivar): release
+	  IRecordInfo interface before setting another IRecordInfo interface.
+
+Wed Jul 30 13:17:35 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: remove unused macros.
+
+Tue Jul 29 22:21:37 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (hash2olerec): ignore WIN32OLE_RECORD
+	  instance variable if the variable is nil.
+
+Tue Jul 29 19:43:27 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (folerecord_method_missing): refactoring.
+	  divide functionality of folerecord_method_missing into
+	  olerecord_ivar_set and olerecord_ivar_get.
+
+Mon Jul 28 20:20:08 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win23ole.c (folerecord_method_missing): support
+	  setter of member of WIN32OLE_RECORD object.
+
+Mon Jul 28 06:37:19 2014  Zachary Scott  <e@zzak.io>
+
+	* vm_eval.c: [DOC] Fix rdoc formatting of patch from [Bug #9551]
+
+Mon Jul 28 06:34:43 2014  Zachary Scott  <e@zzak.io>
+
+	* vm_eval.c: [DOC] [Bug #9551] Improve clarity of Kernel::catch
+	  documentation, patch by Jesse Sielaff.
+
+Mon Jul 28 06:24:54 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/uri/common.rb: [DOC] [Bug #9563] Recommend using URI.escape
+	  before parsing a uri to avoid invalid characters. Reported by
+	  Evgeniy Serykh.
+
+Mon Jul 28 05:55:56 2014  Zachary Scott  <e@zzak.io>
+
+	* time.c: [DOC] Clarify %Y in strftime, which can accept any digits
+	  and will output at least 4 digits as the year. Reported by Yury
+	  Trofimenko [Bug #10049]
+
+	* lib/time.rb: ditto
+
+Mon Jul 28 05:32:06 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/uri/common.rb: [DOC] [Bug #10075] Clarify how URI.join arguments
+	  are handled by RFC3986, originally reported by John Feminella.
+
+Mon Jul 28 05:21:41 2014  Zachary Scott  <e@zzak.io>
+
+	* file.c: [DOC] Clarify how File.file? handles symbolic links. Also
+	  cleaned up the rdoc style for this method, more to follow.
+	  Originally reported by Michael Renner [Bug #10067]
+
+Mon Jul 28 05:12:22 2014  Zachary Scott  <e@zzak.io>
+
+	* time.c: [DOC] Remove dead link and old bug report, which hasn't been
+	  reproduced in a few years. Reported by Federico Builes [Bug #10071]
+
+Mon Jul 28 04:39:58 2014  Zachary Scott  <e@zzak.io>
+
+	* ext/zlib/zlib.c: [DOC] Remove default value of Zlib constants, as
+	  they may change in the implementation without notice. Patched by
+	  @robin850 [Fixes GH-682] https://github.com/ruby/ruby/pull/682
+
+Mon Jul 28 04:35:35 2014  Zachary Scott  <e@zzak.io>
+
+	* ext/openssl/ossl_hmac.c: Fix NO_HMAC warning [Fixes GH-665]
+	  Patched by @vipulnsward https://github.com/ruby/ruby/pull/665
+
+Sun Jul 27 19:49:36 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/cgi/core.rb: remove unused variables.
+	* lib/erb.rb: ditto.
+	* lib/mkmf.rb: ditto.
+	* lib/net/http/response.rb: ditto.
+	* lib/optparse/version.rb: ditto.
+	* lib/prime.rb: ditto.
+	* lib/racc/parser.rb: ditto.
+	* lib/rexml/document.rb: ditto.
+	* lib/rexml/dtd/dtd.rb: ditto.
+	* lib/rexml/element.rb: ditto.
+	* lib/rexml/functions.rb: ditto.
+	* lib/rexml/parsers/xpathparser.rb: ditto.
+
+Sun Jul 27 05:11:21 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/irb.rb: [DOC] PROMPT_I cannot be nil, patch by @hgillane
+	  Fixes documenting-ruby/ruby#37
+	  https://github.com/documenting-ruby/ruby/pull/37
+
+Sun Jul 27 02:41:50 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/shell/command-processor.rb: remove unused variable.
+	* lib/shell/system-command.rb: ditto.
+	* lib/tmpdir.rb: ditto.
+	* lib/uri/generic.rb: ditto.
+
+Sun Jul 27 02:08:31 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/weakref.rb: split executable code into sample directory.
+	* sample/weakref.rb: ditto.
+
+Sun Jul 27 02:06:55 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/delegate.rb: split executable code into sample directory.
+	* sample/delegate.rb: ditto.
+
+Sun Jul 27 01:46:34 2014  Zachary Scott  <e@zzak.io>
+
+	* proc.c (method_super_method): [DOC] Method#super_method
+
+Sun Jul 27 01:22:39 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (method_super_method): new method Method#super_method,
+	  which returns a method object of the method to be called by
+	  `super` in the receiver method object.
+	  [ruby-core:62202] [Feature #9781]
+
+Sat Jul 26 17:22:14 2014  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* ext/objspace/objspace_dump.c (dump_append): avoid fflush.
+
+	  because dump_append_string_value() iterates over each chars,
+	  fflush()-ing here effectively issues system calls on every single
+	  bytes exist in a ruby process.
+
+Sat Jul 26 16:55:18 2014  Eric Wong  <e@80x24.org>
+
+	* iseq.h (struct iseq_compile_data_storage): reduce overhead
+	  to 16 bytes (from 32) on 64-bit
+
+Sat Jul 26 16:28:06 2014  Eric Wong  <e@80x24.org>
+
+	* vm_core.h (struct rb_iseq_struct): reduce to 280 bytes
+	  (from 288 bytes) on 64-bit
+
+Sat Jul 26 06:44:43 2014  Eric Wong  <e@80x24.org>
+
+	* parse.y (struct parse_params): shrink to 320 to 304 bytes on 64-bit
+
+Sat Jul 26 05:58:35 2014  Eric Wong  <e@80x24.org>
+
+	* include/ruby/ruby.h (ZALLOC, ZALLOC_N): implement
+	  (Data_Make_Struct, TypedData_Make_Struct):
+	  ZALLOC replaces ALLOC+memset
+	  [ruby-core:63951][Feature #10082]
+	* compile.c (iseq_seq_sequence): ZALLOC_N replaces ALLOC_N+MEMZERO
+	* cont.c (fiber_t_alloc): ZALLOC replaces ALLOC+MEMZERO
+	* io.c (rb_io_reopen): ditto
+	* iseq.c (prepare_iseq_build): ditto
+	* parse.y (new_args_tail_gen, parser_new, ripper_s_allocate): ditto
+	* re.c (match_alloc): ditto
+	* variable.c (rb_const_set): ditto
+	* ext/socket/raddrinfo.c (get_addrinfo): ditto
+	* ext/strscan/strscan.c (strscan_s_allocate): ditto
+	* gc.c (rb_objspace_alloc): calloc replaces malloc+MEMZERO
+
+Sat Jul 26 05:54:54 2014  Eric Wong  <e@80x24.org>
+
+	* symbol.c (dsymbol_check): remove unneeded semi-colon
+
+Fri Jul 25 14:07:27 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: change objspace::rgengc::parent_object_is_old (boolean)
+	  to objspace::rgengc::parent_object (VALUE).
+	  Use Qfalse or RVALUE pointer instead of FALSE and TRUE.
+
+	* gc.c (gc_marks_body): should clear parent_object just before
+	  gc_mark_roots() because there are no parents objects
+	  for root objects.
+
+Fri Jul 25 13:45:39 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_gc_writebarrier_remember_promoted): should remember only
+	  OLD objects on RGENGC_AGE2_PROMOTION.
+
+Fri Jul 25 13:42:02 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_mark_stacked_objects): fix error message.
+
+Fri Jul 25 13:18:00 2014  Will Farrington  <wfarrington@digitalocean.com>
+
+	* ext/socket/socket.c (sock_gethostname): Use NI_MAXHOST to support
+	  hostnames longer than 64 characters if the system supports it.
+	  [fixes GH-683]
+
+Fri Jul 25 12:21:11 2014  Santiago Pastorino  <santiago@wyeworks.com>
+
+	* compile.c (defined_expr): make the condition if the receiver
+	  is explicit or implicit cleaner.  [fix GH-681]
+
+Fri Jul 25 03:53:52 2014  Eric Hodel  <drbrain@segment7.net>
+
+	* doc/keywords.rdoc:  [DOC] Describe each keyword.
+
+Thu Jul 24 22:40:24 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (Init_win32ole): add WIN32OLE_RECORD#initialize
+	  method.
+
+	* ext/win32ole/win32ole.c (ole_val2variant): convert WIN32OLE_RECORD
+	  object to VT_RECORD variant.
+
+Thu Jul 24 20:10:59 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: fix major GC flags.
+	  * add GPR_FLAG_MAJOR_BY_FORCE, which indicates
+	    major GC by METHOD, CAPI and so on (see GC_BY).
+	  * remove GPR_FLAG_MAJOR_BY_RESCAN because not used.
+	  * remove GPR_FLAG_MAJOR_BY_STRESS, use FORCE instead.
+
+	* test/ruby/test_gc.rb: catch up.
+
+Thu Jul 24 15:55:02 2014  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* include/ruby/io.h (struct rb_io_buffer_t): PACKED_STRUCT should not
+	  be used for platform-specific optimization. PACKED_STRUCT_UNALIGNED
+	  should be used. [ruby-core:63988] [Bug #10088]
+
+Thu Jul 24 04:42:13 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/benchmark.rb: split executable code into sample directory.
+	* sample/benchmark.rb: ditto.
+
+Thu Jul 24 04:36:49 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/tempfile.rb: split executable code into sample directory.
+	* sample/tempfile.rb: ditto.
+
+Thu Jul 24 04:29:36 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/pstore.rb: split executable code into sample directory.
+	* sample/pstore.rb: ditto.
+
+Wed Jul 23 23:50:11 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/defines.h, siphash.c, st.c (UNALIGNED_WORD_ACCESS):
+	  add PowerPC64 too, which is capable to access unaligned words.
+	  patched by Gustavo Frederico Temple Pedrosa in [ruby-core:63937].
+	  [Feature #10081]
+
+	* regint.h (PLATFORM_UNALIGNED_WORD_ACCESS): ditto.
+
+Wed Jul 23 04:04:38 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/drb/extserv.rb: remove duplicate code with sample directory.
+	  contributed from @vipulnsward. [fix GH-679]
+
+Tue Jul 22 12:56:24 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_count): fix wrong single-byte optimization.
+	  7bit ascii can be a trailing byte in Shift_JIS.
+	  [ruby-dev:48442] [Bug #10078]
+
+Tue Jul 22 01:48:38 2014  Eric Wong  <e@80x24.org>
+
+	* include/ruby/io.h (rb_io_buffer_t): fix packing on gcc
+	  r46892 caused packing to be a no-op on gcc (4.7.2-5, Debian)
+	  [Bug #10079][ruby-core:63912]
+
+Mon Jul 21 15:55:42 2014  fuji70  <fujifuji70@gmail.com>
+
+	* lib/optparse.rb (getopts): print default values and descriptions
+	  in the help message.  [fix GH-676]
+
+Sun Jul 20 14:26:27 2014  Eric Wong  <e@80x24.org>
+
+	* vm_core.h (rb_proc_t): reduce to 64 bytes from 72 on 64-bit
+
+Sun Jul 20 13:50:34 2014  Eric Wong  <e@80x24.org>
+
+	* transcode.c (rb_econv_t): reduce to 184 bytes from 200 on 64-bit
+
+Sun Jul 20 12:44:23 2014  Eric Wong  <e@80x24.org>
+
+	* include/ruby/io.h (rb_io_buffer_t): pack structure
+	  Reduces rb_io_t from 200 to 192 bytes, allowing rb_io_t to
+	  occupy one less cache line.
+	  [Feature #10050]
+
+Sun Jul 20 12:41:53 2014  Eric Wong  <e@80x24.org>
+
+	* include/ruby/io.h (rb_io_t): shrink to 200 bytes from 216 on 64-bit
+	  This puts us within 8 bytes of being three cache lines instead of
+	  four lines on x86-64.  This breaks the ABI.
+	  [Feature #10050]
+
+Sun Jul 20 12:36:46 2014  Eric Wong  <e@80x24.org>
+
+	* include/ruby/oniguruma.h (struct re_pattern_buffer): shrink to 448
+	  bytes from 464 bytes on 64-bit.  This breaks the ABI.
+	  [Feature #10034]
+
+Sun Jul 20 01:06:06 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* ext/openssl/ossl.c: use encryptor instead of encrypter in doc.
+	  contributed from @vipulnsward. [fix GH-663]
+
+Sun Jul 20 00:32:44 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_io_initialize): [DOC] fix rdoc of append mode.  it does
+	  not move the pointer at open.  [ruby-core:63747] [Bug #10039]
+
+Sat Jul 19 12:40:50 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_compile_each): allow to access private attribute
+	  reader in op_assign.  [ruby-core:63817] [Bug #10060]
+
+Sat Jul 19 11:56:36 2014  Grey Baker  <greysteil@gmail.com>
+
+	* lib/time.rb (Time#apply_offset): Guards against a `nil` return
+	  value from `Time.month_days` when offsetting date.  Out of range
+	  values are then caught when `Time.utc` is called (as usual).
+
+	  Previously a `nil` return value from `Time.month_days` would
+	  have the `<` operator called on it, and raise `NoMethodError`.
+	  [fix GH-667]
+
+	* lib/rdoc/parser/changelog.rb (RDoc#parse_entries): fix dirty hack.
+
+Sat Jul 19 06:19:01 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: refactoring.
+
+Fri Jul 18 22:34:41 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (folevariant_initialize): WIN32OLE_VARIANT
+	  does not support VT_RECORD. VT_RECORD should be supported in
+	  WIN32OLE_RECORD.
+
+	* test/win32ole/test_win32ole_variant.rb (test_s_new_vt_record_exc):
+	  ditto.
+
+Fri Jul 18 19:54:03 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (folevariant_initialize): remove unnecessary
+	  code.
+
+Fri Jul 18 19:11:03 2014  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix/eigenvalue_decomposition: Style fix
+	  Patch by Gogo Tanaka [#10058]
+
+Fri Jul 18 19:03:53 2014  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb: Avoid using `and`.
+	  Patch by gogo tanaka [#10058]
+
+Fri Jul 18 17:41:54 2014  GoGo tanaka  <qlli.illb@gmail.com>
+
+	* test/matrix/test_matrix.rb: Add tests for Matrix class.
+	  [Feature #10057][ruby-core:63809]
+
+Fri Jul 18 10:14:42 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/fileutils.rb: added missing options of FileUtils.touch by @Domon.
+	  [fix GH-669]
+
+Thu Jul 17 19:57:27 2014  Herwin  <herwin@quarantainenet.nl>
+
+	* ext/thread/thread.c (rb_szqueue_push): add optional parameter,
+	  non_block defaulted to false.  [ruby-core:63794] [Feature #10052]
+
+Wed Jul 16 23:01:43 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (ole_variant2val): support array of
+	  VT_RECORD variant.
+
+Wed Jul 16 20:21:49 2014  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* vm_core.h (struct rb_iseq_struct): stack_max is changed to int
+	  because all calculations related to stack_max in compile.c
+	  (iseq_set_sequence) and vm_insnhelper.c (vm_push_frame) are
+	  conducted by using int. This partly reverts r23945.
+	* vm_insnhelper.c (vm_push_frame): ditto. This reverts r42401.
+
+Wed Jul 16 19:55:32 2014  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* vm_core.h (struct rb_iseq_struct): temporal workaround of [Bug 10037].
+	  Add padding on big-endian 64-bit architecture (e.g. sparc64).
+
+Wed Jul 16 19:32:23 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (fole_record_method_missing): call
+	  rb_hash_fetch instead of rb_hash_aref.
+
+Wed Jul 16 18:08:47 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* iseq.c (rb_iseq_defined_string): use rb_gc_mark_object() instead of
+	  marking from vm_mark().
+
+	* vm.c (rb_vm_mark): ditto.
+
+Wed Jul 16 18:03:50 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_mark_roots): call rb_vm_mark directly.
+
+	* vm.c: remove mark function for RubyVM object because
+	  RubyVM object marked manually.
+
+Wed Jul 16 12:25:39 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* regcomp.c: Merge Onigmo 5.14.1 25a8a69fc05ae3b56a09.
+	  this includes Support for Unicode 7.0 [Bug #9092].
+
+Tue Jul 15 23:59:27 2014  Jared Jennings  <jared.jennings.ctr@us.af.mil>
+
+	* ext/digest: make built-in digest function implementations
+	  indicate success or failure of init and final functions.
+	  [ruby-core:61614] [Bug #9659]
+
+	* ext/digest/digest.c: expect digest init and finish functions to
+	  indicate success or failure; raise exception on failure.
+	  [ruby-core:61614] [Bug #9659]
+
+Tue Jul 15 20:31:40 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: modify document for WIN32OLE_RECORD.
+
+Tue Jul 15 12:42:23 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* defs/default_gems: change version definition file of rake.
+
+Tue Jul 15 12:00:03 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/rake.rb, lib/rake/*.rb: Upgrade to rake-10.3.2
+	  [fix GH-668]
+	* test/rake/*.rb: ditto.
+
+Mon Jul 14 19:14:51 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: modify WIN32OLE class document and
+	  add comment for constants of WIN32OLE.
+
+Mon Jul 14 16:38:45 2014  Eric Wong  <e@80x24.org>
+
+	* vm_core.h (struct rb_iseq_struct): reduce to 288 bytes
+	  on x86-64 (from 296 bytes)
+
+Mon Jul 14 16:07:25 2014  Eric Wong  <e@80x24.org>
+
+	* iseq.h (struct iseq_catch_table_entry): shrink to 32 bytes
+	  on x86-64 (from 48 bytes)
+
+Mon Jul 14 16:04:41 2014  Eric Wong  <e@80x24.org>
+
+	* iseq.h (struct iseq_catch_table): new flexible array struct
+		 (iseq_catch_table_bytes): allocated size function
+	* vm_core.h (struct rb_iseq_struct): update catch_table member
+	  This reduces the struct from 304 to 296 bytes on x86-64.
+	* compile.c (iseq_set_exception_table): update for struct changes
+	* iseq.c (iseq_free): ditto
+	* iseq.c (iseq_memsize): ditto
+	* iseq.c (rb_iseq_disasm): ditto
+	* iseq.c (iseq_data_to_ary): ditto
+	* iseq.c (rb_iseq_build_for_ruby2cext): ditto (untested)
+	* vm.c (vm_exec): ditto
+	* vm_core.h (struct rb_iseq_struct): ditto
+	* vm_insnhelper.c (vm_throw): ditto
+
+Sun Jul 13 17:49:52 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* ext/openssl/ossl_cipher.c: Fix call to ciphers class method and
+	  spell out `encryption` by @vipulnsward [fix GH-664]
+
+Sun Jul 13 17:31:51 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* ext/gdbm/gdbm.c: fix wrong arguments in GetDBM2 macro.
+	* ext/sdbm/init.c: ditto.
+
+Sun Jul 13 17:25:50 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* ext/dbm/dbm.c: fix wrong arguments in GetDBM2 macro by @v2e4lisp.
+	  [fix GH-655]
+
+Sun Jul 13 16:44:56 2014  Eric Wong  <e@80x24.org>
+
+	* vm_core.h (struct rb_call_info_struct): improve packing
+	  This reduces the struct from 112 to 104 bytes on x86-64.
+
+Sun Jul 13 15:53:25 2014  Eric Wong  <e@80x24.org>
+
+	* vm_core.h (struct rb_iseq_struct): stack_max is uint32_t
+	  This reduces the struct from 312 to 304 bytes on x86-64.
+
+Sun Jul 13 10:56:26 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (rb_cv_broken_backtrace): exit with failure
+	  normally, no needs to abort.  [ruby-core:63678] [Bug #10008]
+
+Sat Jul 12 15:10:22 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (fole_record_method_missing): correct
+	  fields Hash key.
+
+Sat Jul 12 04:17:40 2014  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* lib/net/smtp.rb (Net::SMTP#data): enable buffering while
+	  'data' send for optimizing Net::SMTP#send_message.
+	  [ruby-dev:48329] [misc #9981]
+	  patch by Masahiro Tomita.
+
+Sat Jul 12 01:13:45 2014  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* test/ruby/envutil.rb (assert_no_memory_leak): On Solaris 9 or later,
+	  if possible, execute child ruby with environment variables
+	  LD_PRELOAD=libumem.so UMEM_OPTIONS="backend=mmap". With these
+	  variables, freed memory is immediately returned to the OS.
+	  [Bug #10020] [ruby-dev:48391]
+
+Fri Jul 11 20:49:10 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c: add WIN32OLE_RECORD class to support
+	  VT_RECORD OLE variables.
+
+Fri Jul 11 17:15:08 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/abbrev.rb: remove executable.
+
+Fri Jul 11 16:45:39 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/fileutils.rb: handle ENOENT error with symlink targeted to
+	  non-exists file. [ruby-dev:45933] [Bug #6716]
+
+Fri Jul 11 15:59:42 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* array.c: Clarify documentation for Array#insert.
+	  [ruby-core:62934] [Bug #9901]
+
+Fri Jul 11 15:39:36 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* io.c: Improve Documentation by @dapplebeforedawn.
+	  [fix GH-658] [ruby-core:63579] [Bug #10012]
+
+Fri Jul 11 14:19:14 2014  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb: Fix sign for cross_product [#9499]
+
+Fri Jul 11 11:11:50 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/prepare_so_k_nucleotide.rb: use require_relative.
+
+	* benchmark/prepare_so_reverse_complement.rb: ditto.
+
+Fri Jul 11 10:09:03 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* pack.c (encodes): fix buffer overrun by tail_lf.  Thanks to
+	  Mamoru Tasaka and Tomas Hoger.  [ruby-core:63604] [Bug #10019]
+
+Thu Jul 10 23:51:36 2014  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* hash.c (ruby_setenv): Fix TestEnv#test_aset failure on Solaris 9.
+	  When name contains '=', ruby_setenv raises Errno::EINVAL.
+	  That is the same behavior as Solaris 10.
+	  NULL check for malloc return value is also added.
+
+Thu Jul 10 15:02:55 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_callee_setup_keyword_arg): adjust VM stack
+	  pointer to get rid of overwriting splat arguments by arguments
+	  for `to_hash` conversion.  [ruby-core:63593] [Bug #10016]
+
+Thu Jul 10 01:09:57 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* symbol.c: remove rb_gc_mark_symbols().
+
+	  fstrings referred by static symbols and pinned dynamic symbols
+	  are registered by rb_gc_register_mark_object().
+
+	  fstrings referred by dynamic symbols (not pinned symbols)
+	  are referred from global_symbols.dsymbol_fstr_hash (Hash object).
+
+	  Note that fstrings referred from dynamic symbols must live logger
+	  than symbol objects themselves because rb_gc_free_dsymbol() uses
+	  fstrings to remove from symbol tables.
+	  This is why we can not mark fstrings from dynamic symbols.
+
+	  This technique reduces root objects for GC marking.
+
+	* gc.c (gc_mark_roots): ditto.
+
+	* internal.h: ditto.
+
+Thu Jul 10 00:24:18 2014  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* common.mk (DTRACE_DEPENDENT_OBJS): fix build failure on Solaris
+	  introduced in r46768. Object files containing dtrace probes should
+	  be listed in DTRACE_DEPENDENT_OBJS.
+
+Wed Jul  9 17:07:28 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* symbol.c, symbol.h: Symbol class implementation and internals,
+	  split from parse.y.
+
+Wed Jul  9 14:45:39 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* parse.y: change Symbol <-> ID relationship to avoid
+	  exposing IDs from collectable symbols.
+	  [Bug #10014]
+
+	  Now, rb_check_id() returns 0 if corresponding symbol is
+	  pinned dynamic symbol.
+
+	  There is remaining intern_cstr_without_pindown(), it can return
+	  IDs from collectable symbols. We must be careful to use it
+	  (only used in parse.y).  I think it should be removed if
+	  it does not have impact for performance.
+
+	* parse.y:
+	  add:
+	  * STATIC_SYM2ID()
+	  * STATIC_ID2SYM()
+	  rename:
+	  * rb_pin_dynamic_symbol() -> dsymbol_pindown()
+
+	* internal.h:
+	  remove:
+	  * rb_check_id_without_pindown()
+	  * rb_sym2id_without_pindown()
+	  add:
+	  * rb_check_symbol()
+	  * rb_check_symbol_cstr()
+
+	* load.c: use rb_check_id() or rb_check_id_cstr().
+
+	* object.c: ditto.
+
+	* struct.c: ditto.
+
+	* thread.c: ditto.
+
+	* vm_method.c: ditto.
+
+	* string.c (sym_find): use only rb_check_symbol().
+
+	* sprintf.c (rb_str_format): use rb_check_symbol_cstr().
+
+Wed Jul  9 12:21:55 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* parse.y (symbols_i): delete garbage symbols for Symbol.all_symbols.
+
+Wed Jul  9 05:49:08 2014  Eric Wong  <e@80x24.org>
+
+	* thread_pthread.h (struct rb_global_vm_lock_struct):
+	  do not expose pthread type for lock
+
+Wed Jul  9 05:41:40 2014  Eric Wong  <e@80x24.org>
+
+	* thread_pthread.h: remove unneeded semaphore.h include
+
+Wed Jul  9 00:12:28 2014  Keiju Ishitsuka  <keiju@ishitsuka.com>
+
+	* lib/irb/ruby-lex.rb: fix counting indent in identify_string_dvar.
+
+Tue Jul  8 16:58:02 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/memory_status.rb (Memory::PSCMD): use ps command which
+	  outputs expected result.  [ruby-dev:48370] [Bug #10010]
+
+Tue Jul  8 14:45:17 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* parse.y (dsymbol_alloc): set global_symbols.minor_marked to 0.
+
+	* parse.y (dsymbol_check): set RSYMBOL(sym)->fstr to 0
+	  because we should not touch fstr after that.
+
+	* parse.y (rb_gc_free_dsymbol): skip deleting str and sym
+	  from tables if fstr == 0.
+
+Mon Jul  7 14:31:52 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* parse.y: remove global_symbols::pinned_dsym
+	  (and ::pinned_dsym_minor_marked).
+
+	  Mark pinned dsymbols by rb_gc_register_mark_object() because
+	  they are immortal.
+
+	* parse.y (rb_gc_free_dsymbol): rename parameter name `ptr' to `sym'.
+
+Mon Jul  7 12:45:51 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: revert miss-commit.
+
+Mon Jul  7 12:40:59 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* parse.y: need to use updated (re-created) symbols.
+
+Mon Jul  7 11:02:55 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/mkconfig.rb: remove not to require rbconfig/obsolete.rb.
+
+	* lib/rbconfig/obsolete.rb: removed.
+
+Mon Jul  7 10:52:03 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* parse.y: do not use rb_gc_resurrect(), but create a new dynamic
+	  symbol for garbage dynamic symbol.
+
+	* common.mk: use gc.h by parse.y.
+
+Mon Jul  7 02:18:42 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* string.c (fstr_update_callback): do not use rb_gc_resurrect()
+	  any more.
+
+	  Make new frozen string and replace with garbage frozen string.
+
+	* common.mk: use gc.h from string.c.
+
+Mon Jul  7 00:36:13 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: rename is_dying_object() to is_garbage_object().
+
+	* gc.h: rb_objspace_garbage_object_p() as an exported function.
+
+Sun Jul  6 21:30:35 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (is_dying_object): fix missed condition.
+
+	* gc.c (is_live_object): move frequent path first.
+
+Sun Jul  6 21:00:11 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: rename is_dead_object() to is_dying_object().
+	  This function is not opposite against is_live_object()
+	  because is_dying_object() does *not* check object type.
+
+	* gc.c (is_dying_object): change condition.
+
+	* gc.c (is_live_object): use T_NONE instead of 0.
+
+	* gc.c (rb_objspace_dying_object_p): added.
+
+Sun Jul  6 13:37:27 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_gc_register_mark_object): change data structure.
+	  From single array, to array of arrays. Each array only has 1024
+	  entries.
+
+	* vm.c (Init_vm_objects): change default capa from 1 to 128.
+
+Sat Jul  5 05:05:53 2014  Vipul A M  <vipulnsward@gmail.com>
+
+	* lib/irb/locale.rb (IRB::Locale#modifier): fix wrong attr_reader
+	  `modifieer` => `modifier` from irb locale.  [fix GH-656]
+
+Fri Jul  4 20:45:26 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* parse.y: rename symbols::sym_id to symbols::str_id.
+	  This table is not {Symbol => ID} table, but
+	  {String => ID} table.
+
+	* parse.y (lookup_sym_id): also rename lookup_sym_id() to
+	  lookup_str_id() because key is not Symbol, but String.
+
+Fri Jul  4 18:42:04 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* parse.y (must_be_dynamic_symbol): fix missed-condition.
+
+Fri Jul  4 18:38:11 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* parse.y (rb_pin_dynamic_symbol): should be `static' function.
+
+Fri Jul  4 18:03:35 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* parse.y (must_be_dynamic_symbol): refactoring.
+	  * add `inline'.
+	  * use UNLIKELY().
+	  * check only DYNAMIC_SYM_P(), otherwise it is a bug.
+	  * lookup_id_str() is not needed in second condition.
+
+Fri Jul  4 11:53:56 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* parse.y: remove unused code
+	  surrounded by `#if ENABLE_SELECTOR_NAMESPACE'
+
+Fri Jul  4 10:08:24 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/rubygems/test_gem_package.rb: avoid tempfile leaks using Tempfile#close!
+	* test/rubygems/test_gem_request_set.rb: ditto.
+	* test/rubygems/test_gem_request_set_gem_dependency_api.rb: ditto.
+
+Fri Jul  4 04:42:05 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http/response.rb (Net::Inflater#inflate_adapter):
+	  prevent automatic encoding conversion.
+
+Fri Jul  4 04:39:52 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http/response.rb (Net::HTTPResponse.each_response_header):
+	  raise first exception even if inflate_body_io.finish raises error.
+	  when begin block raises error, finish usually raises error too.
+
+Fri Jul  4 02:56:04 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/generic.rb (URI::Generic#query=): remove validation, just
+	  escape. [Feature #2542]
+
+	* lib/uri/generic.rb (URI::Generic#fragment=): ditto.
+
+	* lib/uri/generic.rb (URI::Generic#check_query): removed.
+
+	* lib/uri/generic.rb (URI::Generic#set_query): ditto.
+
+	* lib/uri/generic.rb (URI::Generic#check_fragment): ditto.
+
+	* lib/uri/generic.rb (URI::Generic#set_fragment): ditto.
+
+Thu Jul  3 12:40:22 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (--with-static-linked-ext): fix for extensions to
+	  be linked statically.
+
+	* Makefile.in, common.mk: use ENCSTATIC for enc directory.
+
+	* ext/extmk.rb: supply dependencies of statically linked extension
+	  libraries.
+
+Wed Jul  2 15:45:49 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_heap_lazy_sweep): simplify logic.
+
+	* gc.c (gc_page_sweep): return TRUE if empty slots are available.
+
+Wed Jul  2 09:48:42 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* logger.rb: removed unmaintained code.
+	  [Feature #9860][ruby-core:62724]
+	* test/logger/test_application.rb: ditto.
+
+Wed Jul  2 03:20:00 2014  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* node.c (dump_node): handle nd_value == (NODE *)-1 to mean this
+	  keyword argument is required
+
+Wed Jul  2 02:57:27 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm.c (rb_vm_env_local_variables): returns array of local
+	  variable name symbols in the environment by envval.
+
+	* proc.c (bind_local_variables): use rb_vm_env_local_variables.
+
+Wed Jul  2 02:23:52 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (bind_receiver): new method to return the bound receiver
+	  of the binding object.  [ruby-dev:47613] [Feature #8779]
+
+Wed Jul  2 02:14:37 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (bind_local_variables): update env from envval for each
+	  iterations.  [ruby-dev:48351] [Bug #10001]
+
+Tue Jul  1 23:46:34 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* NEWS: [DOC] mention about Binding#local_variables, introduced at
+	  r44392 (see [Feature #8773]).
+
+Tue Jul  1 23:30:51 2014  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
+
+	* numeric.c (num_step_scan_args): table argument of rb_get_kwargs() is
+	  array of IDs, not Symbols. [ruby-dev:48353] [Bug #9811]
+
+Tue Jul  1 16:18:22 2014  Akinori MUSHA  <knu@iDaemons.org>
+
+	* ext/digest/lib/digest/hmac.rb, test/digest/test_digest_hmac.rb:
+	  Digest::HMAC is finally removed as previously noticed.
+	  [fix GH-648]
+
+Tue Jul  1 11:13:43 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* ext/date/lib/date/format.rb: removed empty file by @vipulnsward.
+	* ext/date/lib/date.rb: removed needless require.
+	  [fix GH-647]
+
+Mon Jun 30 16:42:52 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_stat_internal): return size_t value instead of VALUE
+	  and remove `out' parameter.
+
+	* gc.c: add braces for `if' statements.
+
+	* gc.c (gc_stat_internal): fix comment.
+
+Mon Jun 30 15:07:34 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: support `USE_RGENGC == 0'.
+
+	* test/ruby/test_gc.rb: ditto.
+
+Mon Jun 30 11:36:04 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* file.c: [DOC] document File.join returns a string.
+	  Contributed by @dapplebeforedawn. [fix GH-646]
+
+Sat Jun 28 22:57:01 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/pathname/pathname.c (path_birthtime): Windows support.
+	  see [Feature #9857] [ruby-dev:48339]
+
+Sat Jun 28 22:44:16 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/pathname/pathname.c (path_birthtime): New method,
+	  Pathname#birthtime.
+	  Proposed by Kazuhiro NISHIYAMA.  [ruby-dev:48232] [Feature #9857]
+
+Sat Jun 28 20:29:03 2014  Simon Baird  <simon.baird@gmail.com>
+
+	* ext/bigdecimal/lib/bigdecimal/math.rb (BigMath#PI): change error
+	  message about zero or negative precision for clarity and
+	  consistency with other methods.  [GH-644]
+
+Sat Jun 28 15:32:57 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/webrick/utils.rb (create_listeners): Close socket objects.
+
+Sat Jun 28 13:58:48 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval.c (setup_exception): should not overwrite SystemStackError
+	  backtrace if set already.  [ruby-core:63377] [Feature #6216]
+
+	* eval.c (setup_exception): get rid of method calls before raising
+	  stack overflow, not to cause stack overflow again.
+
+	* defs/id.def: add IDs for backtraces.
+
+Sat Jun 28 04:08:22 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/mailto.rb: update to latest specs, RFC 6068 and HTML5.
+
+	* lib/uri/mailto.rb (HEADER_PATTERN): removed.
+
+	* lib/uri/mailto.rb (HEADER_REGEXP): use RFC 6068 hfields.
+
+	* lib/uri/mailto.rb (EMAIL_REGEXP): use HTML5 email regexp.
+
+	* lib/uri/mailto.rb (URI::MailTo.build): support multiple to addresses.
+
+	* lib/uri/mailto.rb (URI::MailTo#initialize): Support multiple to
+	  addresses. Don't check with regexp, only split.
+
+	* lib/uri/mailto.rb (URI::MailTo#check_to): verify by matching
+	  URI path-rootless and HTML5 email regexp with unescaped one.
+
+	* lib/uri/mailto.rb (URI::MailTo#check_headers): verify only by
+	  HEADER_REGEXP.
+
+	* lib/uri/mailto.rb (URI::MailTo#set_headers): don't check by
+	  HEADER_REGEXP, only split it.
+
+Sat Jun 28 00:35:10 2014  Lauri Tirkkonen  <lotheac@iki.fi>
+
+	* tool/mkconfig.rb: fix empty RbConfig::CONFIG["prefix"] when
+	  configured --with-rubyarchprefix, remove prefix from rubyarchdir
+	  after expansion for the case it does not start with '$(prefix)'.
+	  [fix GH-643]
+
+Fri Jun 27 15:20:12 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/rubygems/test_case.rb: rescue Gem::LoadError in Gem::TestCase.
+	  because it's effected by removing minitest from stdlib.
+
+Fri Jun 27 12:29:37 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/rubygems/specification.rb: fixed broken condition caused
+	  by removing YAML::ENGINE.
+	* lib/rubygems/package/old.rb: ditto.
+
+Fri Jun 27 05:33:26 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (env_shift): fix memory leak on Windows, free environment
+	  strings block always.  [ruby-dev:48332] [Bug #9983]
+
+Fri Jun 27 03:41:53 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* sprintf.c (GETASTER): should not use the numbered argument to be
+	  formatted, raise ArgumentError instead.
+	  [ruby-dev:48330] [Bug #9982]
+
+Thu Jun 26 18:18:28 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/with_different_ofs.rb: move into test library directory.
+	* test/csv/base.rb: fix require path for with_different_ofs.rb.
+	* test/digest/test_digest_extend.rb: ditto.
+
+Thu Jun 26 18:06:50 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/profile_test_all.rb: move into test library directory.
+	* test/runner.rb: fix require path for profile_test_all.rb.
+
+Thu Jun 26 17:57:57 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/webrick/httpproxy.rb: remove useless assigned variables.
+	* lib/webrick/httpservlet/cgihandler.rb: ditto.
+	* lib/webrick/httpservlet/erbhandler.rb: ditto.
+	* lib/webrick/server.rb: ditto.
+
+Thu Jun 26 08:28:01 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (env_select): fix memory leak and crash on Windows, make
+	  keys array first instead of iterating on environ directly.
+	  [ruby-dev:48325] [Bug #9978]
+
+Thu Jun 26 02:45:04 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval_error.c (error_print): put a newline after an anonymous
+	  exception class name.
+
+Wed Jun 25 22:31:32 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (ruby_setenv): fix memory leak on Windows, free
+	  environment strings block after check for the size.
+	  [ruby-dev:48323] [Bug #9977]
+
+Wed Jun 25 15:44:12 2014  Eric Wong  <e@80x24.org>
+
+	* ccan/container_of/container_of.h (container_off_var):
+	  avoid warning with -Wcast-qual
+	  [ccan ba5ad771af4aa9e085498de6c3c665c52694460f (Rusty Russell)]
+
+Wed Jun 25 10:19:59 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (env_aset, env_has_key, env_assoc, env_has_value),
+	  (env_rassoc, env_key): prohibit tainted strings if $SAFE is
+	  non-zero.  [Bug #9976]
+
+Tue Jun 24 14:46:17 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/gserver.rb: remove redundant use of to_s in interpolation.
+	* lib/logger.rb: ditto.
+	* lib/optparse.rb: ditto.
+	* lib/rbconfig/obsolete.rb: ditto.
+	* lib/resolv.rb: ditto.
+	* lib/webrick/httpresponse.rb: ditto.
+
+Tue Jun 24 10:50:06 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (env_path_str_new): make PATH environment variable
+	  string, to be frozen.
+
+Tue Jun 24 10:40:52 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* tool/make-snapshot: download bundle gems when package making.
+	  [Feature #9852][ruby-core:62676]
+	* gems/bundled_gems: listed bundled gems for Ruby 2.2.
+
+Tue Jun 24 10:20:35 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* tool/downloader.rb: make Downloader class to general download utility.
+	  It can be used without config.guess and config.sub.
+	* tool/get-config_files: ditto.
+	* tool/make-snapshot: ditto.
+
+Tue Jun 24 06:17:52 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* eval.c (setup_exception): "mesg == sysstack_error" and
+	  sysstack_error_p(mesg) are duplicated.
+	  r46502 seems to want to use latter.
+
+Tue Jun 24 06:15:36 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/tk/tcltklib.c: fix format specifiers for VALUE and
+	  Tcl_Interp*.  [ruby-core:63283] [Bug #9972]
+
+Tue Jun 24 05:40:41 2014  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* nacl/nacl-config.rb: Use File.exist? instead of executable?
+	  for irt_core. Recent nacl_sdk has non-executable irt_core.
+	  Patch by Shinichiro Hamaji.
+	  [Fixes GH-529] https://github.com/ruby/ruby/pull/529
+
+Mon Jun 23 18:44:45 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* tool/config_files.rb: rename class ConfigFiles to Downloader.
+	* tool/get-config_files: ditto.
+	* tool/make-snapshot: ditto.
+
+Mon Jun 23 18:03:13 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* tool/rbinstall.rb: support to install bundle gems.
+
+Mon Jun 23 17:33:11 2014  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/net/imap.rb (Net::IMAP#fetch): [DOC] Describe how a range in
+	  +set+ is interpreted, and mention -1 which can be used for '*'.
+
+Mon Jun 23 16:22:50 2014  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* include/ruby/ruby.h (struct RHash): no longer. [Feature #9889]
+
+	* include/ruby/ruby.h (RHASH): ditto.
+
+	* include/ruby/ruby.h (RHASH_ITER_LEV): deprecated.  Will be deleted later.
+
+	* include/ruby/ruby.h (RHASH_IFNONE): ditto.
+
+	* internal.h (struct RHash): moved here.
+
+	* internal.h (RHASH): ditto.
+
+	* hash.c (rb_hash_iter_lev): do not use this.
+
+	* hash.c (rb_hash_ifnone): ditto.
+
+Mon Jun 23 13:30:11 2014  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* include/ruby/ruby.h (struct RComplex): no longer. [Feature #9888]
+
+	* include/ruby/ruby.h (RCOMPLEX): ditto.
+
+	* include/ruby/ruby.h (RCOMPLEX_SET_REAL): deprecated.  Will be deleted later.
+
+	* include/ruby/ruby.h (RCOMPLEX_SET_IMAG): ditto.
+
+	* internal.h (struct RFloat): moved here.
+
+	* internal.h (RCOMPLEX): ditto.
+
+	* complex.c (rb_complex_set_real): do not use this.
+
+	* complex.c (rb_complex_set_imag): ditto.
+
+Mon Jun 23 13:10:15 2014  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* include/ruby/ruby.h (struct RFloat): no longer.  [Feature #9863]
+
+	* include/ruby/ruby.h (RFLOAT): ditto.
+
+	* internal.h (struct RFloat): moved here.
+
+	* internal.h (RFLOAT): ditto.
+
+Mon Jun 23 12:01:42 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/generic.rb (check_port): allow strings for port= as
+	  described in rdoc.
+
+	* lib/uri/rfc3986_parser.rb (regexp): implementation detail of above.
+
+Mon Jun 23 11:35:01 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval.c (setup_exception): set backtrace in system stack error
+	  other than the pre-allocated sysstack_error.  [Feature #6216]
+
+	* proc.c (Init_Proc): freeze the pre-allocated sysstack_error.
+
+	* vm_insnhelper.c (vm_stackoverflow): raise new instance for each
+	  times without calling any methods to keep the backtrace with no
+	  further stack overflow.
+
+	* object.c (rb_obj_copy_ivar): extract function to copy instance
+	  variables only for T_OBJECT from init_copy.
+
+Mon Jun 23 11:11:16 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* signal.c (check_stack_overflow): drop the last tag too close to
+	  the fault page, to get rid of stack overflow deadlock.
+	  [Bug #9971]
+
+Sun Jun 22 09:11:15 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/generic.rb: remove registry.
+	  'registry' is not used and RFC3986 doesn't use it.
+
+Sun Jun 22 09:10:09 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/rfc3986_parser.rb: raise exception when given a URI string
+	  has non ASCII in order to keep the regexp compiled for US-ASCII.
+
+Sun Jun 22 09:05:42 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/common.rb (URI::REGEXP): move to lib/uri/rfc2396_parser.rb.
+
+	* lib/uri/common.rb (URI::Parser): ditto.
+
+	* lib/uri/common.rb (URI.split): use RFC3986_Parser. [Feature #2542]
+
+	* lib/uri/common.rb (URI.parse): ditto.
+
+	* lib/uri/common.rb (URI.join): ditto.
+
+	* lib/uri/common.rb (URI.extract): deprecated.
+
+	* lib/uri/common.rb (URI.regexp): ditto.
+
+	* lib/uri/rfc2396_parser.rb: added.
+
+	* lib/uri/rfc3986_parser.rb: added.
+
+Sun Jun 22 09:04:50 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/mailto.rb (initialize): as previous commit, fix arg_check
+
+Sun Jun 22 09:01:47 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/ftp.rb (initialize): argument checking flag is arg_check,
+	  but arg[-1] is fragment.
+
+	* lib/uri/ftp.rb (initialize): explicitly specify arguments.
+
+Sat Jun 21 12:50:32 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/fiddle/extconf.rb: supply 0 to fill RUBY_LIBFFI_MODVERSION
+	  with 3-digit.  libffi 3.1 returns just 2-digit.
+	  [ruby-core:62920] [Bug #9897]
+
+Sat Jun 21 07:06:13 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* encoding.c (enc_find): [DOC] never accepted a symbol.
+	  [ruby-dev:48308] [Bug #9966]
+
+Fri Jun 20 17:15:43 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/lib/tracepointchecker.rb: add to check TracePoint healthiness.
+
+	* test/runner.rb: use it.
+
+Fri Jun 20 07:26:44 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_settracefunc.rb: rewrite tests with
+	  assert_consistent_call_return().
+
+	  assert_consistent_call_return() is also modified to check
+	  consistency.
+
+Fri Jun 20 07:07:28 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* compile.c (rb_iseq_compile_node): put start label of block after
+	  trace (b_call).
+	  [Bug #9964]
+
+	* test/ruby/test_settracefunc.rb: add a test.
+
+	  added assert_consistent_call_return() method check call/return
+	  consistency.
+
+Fri Jun 20 05:26:27 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_eval.c (rb_catch_protect): fix same problem of [Bug #9961].
+
+	* vm_eval.c (rb_iterate): ditto.
+
+Thu Jun 19 21:41:30 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (rb_vm_rewind_cfp): add new function to rewind specified cfp
+	  with invoking RUBY_EVENT_C_RETURN.
+	  [Bug #9961]
+
+	* vm_core.h: ditto.
+
+	* eval.c (rb_protect): use it.
+
+	* eval.c (rb_rescue2): ditto.
+
+	* vm_eval.c (rb_iterate): ditto.
+
+	* test/ruby/test_settracefunc.rb: add a test.
+
+	* vm_core.h (rb_vm_rewind_cfp): add the prototype declaration.
+
+Thu Jun 19 19:47:21 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (invoke_block_from_c): move call/return event timing for
+	  bmethod. It can invoke inconsistent call event if this call raises
+	  argument error.
+	  [Bug #9959]
+
+	* vm_insnhelper.c (vm_call_bmethod_body): ditto.
+
+	* test/ruby/test_settracefunc.rb: add a test.
+
+Thu Jun 19 18:14:47 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_core.h: add VM_FRAME_MAGIC_RESCUE to recognize normal block or
+	  rescue clause.
+
+	* vm.c (vm_exec): use VM_FRAME_MAGIC_RESCUE on at rescue/ensure.
+
+	* test/ruby/test_settracefunc.rb: should not invoke b_return at rescue
+	  clause.
+	  [Bug #9957]
+
+	* vm_dump.c (control_frame_dump): check VM_FRAME_MAGIC_RESCUE.
+
+	* vm_dump.c (vm_stack_dump_each): ditto.
+
+Thu Jun 19 13:39:11 2014  Arne Brasseur  <arne@arnebrasseur.net>
+
+	* proc.c (rb_method_curry): Implement Method#curry, which delegates
+	  to to_proc.curry.  [ruby-core:62212] [Feature #9783]
+
+Tue Jun 17 16:41:49 2014  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/ftp.rb (gets, readline): read lines without LF properly.
+	  [ruby-core:63205] [Bug #9949]
+
+	* test/net/ftp/test_buffered_socket.rb: related test.
+
+Tue Jun 17 12:35:24 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval.c (extract_raise_opts): pass unknown options to the
+	  exception, so that exception class can receive a hash argument.
+	  [ruby-core:63203] [Feature #8257]
+
+Tue Jun 17 12:24:57 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (obj_memsize_of): memsize_of(T_ZOMBIE) returns 0, not a rb_bug.
+	  ObjectSpace.count_objects_size() uses memsize_of(T_ZOMBIE).
+
+	  This bug introduced at r46348.
+
+Mon Jun 16 19:00:11 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/runner.rb: failure message should be passed as an argument.
+
+Mon Jun 16 18:42:57 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/runner.rb: capture TracePoint stat before setup and compare
+	  it after teardown.
+
+Mon Jun 16 14:33:56 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (open): use UTF-8 version function to support
+	  non-ascii path properly.  [ruby-core:63185] [Bug #9946]
+
+Sat Jun 14 10:54:08 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rcombinate0): remove recursion, by looping with indexes
+	  stored in `p`.
+
+	* array.c (rpermute0): remove recursion, by looping with indexes
+	  stored in `p`.
+
+	* array.c (permute0): remove recursion, by looping with indexes
+	  stored in `p`.  [ruby-core:63103] [Bug #9932]
+
+Sat Jun 14 10:52:15 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_resize): update capa only when buffer get
+	  reallocated.
+	  http://d.hatena.ne.jp/nagachika/20140613/ruby_trunk_changes_46413_46420#r46413
+
+Sat Jun 14 08:28:59 2014  Zachary Scott  <e@zzak.io>
+
+	* man/rake.1: [DOC] Update links for Rake, patch by @hsbt [Bug #9904]
+	  [Fixes GH-628] https://github.com/ruby/ruby/pull/628
+
+Fri Jun 13 17:58:58 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c: add new method TracePoint.stat to debug
+	  TracePoint mechanism.
+
+	  Ruby users should not use this method. So I don't note this method
+	  in the NEWS file.
+
+	* test/runner.rb: detect zombie active TracePoints with
+	  TracePoint.stat.
+
+Fri Jun 13 17:46:31 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_trace.c: clear and restore recursive checking thread local data
+	  to avoid unexpected throw from TracePoint.
+	  [Bug #9940]
+
+	* test/ruby/test_settracefunc.rb: add a test.
+
+	* thread.c: added
+	  * rb_threadptr_reset_recursive_data(rb_thread_t *th);
+	  * rb_threadptr_restore_recursive_data(rb_thread_t *th, VALUE old);
+
+	* vm_core.h: ditto.
+
+Fri Jun 13 17:33:14 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_combination): iterate on a shared copy, and use
+	  array of indexes instead of array of chosen objects.
+	  [ruby-core:63149] [Bug #9939]
+
+	* array.c (yield_indexed_values): extract from permute0(),
+	  rpermute0(), and rcombinate0().
+
+Fri Jun 13 13:42:58 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_permutation): `p` is the array of size `r`, as
+	  commented at permute0().  since `n >= r` here, buffer overflow
+	  never happened, just reduce unnecessary allocation though.
+
+Thu Jun 12 20:32:28 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_resize): should consider the capacity instead
+	  of the old length, as pointed out by nagachika.
+
+Thu Jun 12 18:31:01 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/net/http/responses.rb: added Net::HTTPPermanentRedirect(308)
+	  Contributed by @yorkie [fix GH-638]
+
+Thu Jun 12 13:27:38 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_freeze): shrink the buffer before freezing, as
+	  pointed out by Eric Wong at [ruby-core:63119].
+
+Thu Jun 12 13:09:03 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (expand_path): shrink expanded path which no longer needs
+	  rooms to append.  [ruby-core:63114] [Bug #9934]
+
+Wed Jun 11 17:37:48 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (rb_cv_scalar_pthread_t): pthread_t is not required
+	  to be a scalar type.
+
+	* thread.c (fill_thread_id_string, thread_id_str): dump pthread_t
+	  in hexadecimal form if it is not a scalar type, assume it can be
+	  represented in a pointer form otherwise.  based on the patch by
+	  Rei Odaira at [ruby-core:62867].  [ruby-core:62857] [Bug #9884]
+
+	* thread_pthread.c (Init_native_thread, thread_start_func_1),
+	  (native_thread_create): set thread_id_str if needed.
+
+	* vm_core.h (rb_thread_t): add thread_id_string if needed.
+
+Wed Jun 11 01:53:22 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: invoke GC before memory allocation (xmalloc/xrealloc)
+	  when GC.stress = true.
+	  [Bug #9859]
+
+	* test/ruby/test_gc.rb: add a test.
+
+Tue Jun 10 13:20:14 2014  Takeyuki FUJIOKA  <xibbar@ruby-lang.org>
+
+	* lib/cgi/core.rb: Provide a mechanism to specify the
+	  max_multipart_length of multipart data.
+	  [Feature #8370] patch by Leif Eriksen <leif.eriksen.au@gmail.com>
+
+Tue Jun 10 10:57:07 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/csv.rb (CSV#<<): honor explicitly given encoding.  based on
+	  the patch by DAISUKE TANIWAKI <daisuketaniwaki AT gmail.com> at
+	  [ruby-core:62113].  [Bug #9766]
+
+Mon Jun  9 20:40:48 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: change full GC timing to keep lower memory usage.
+
+	  Extend heap only at
+	  (1) after major GC
+	  or
+	  (2) after several (two times, at current) minor GC
+
+	  Details in https://bugs.ruby-lang.org/issues/9607#note-9
+	  [Bug #9607]
+
+Mon Jun  9 16:01:41 2014  Masahiro Ide  <imasahiro9@gmail.com>
+
+	* gc.c (gcdebug_sentinel): fix typo, "sentinel" not "sential".
+	  [fix GH-634]
+
+Mon Jun  9 00:04:25 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (posix_fadvise): disable use of posix_fadvise
+	  itself on 32-bit AIX.  [ruby-core:62968] [Bug #9914]
+
+Sun Jun  8 23:28:00 2014    <kanemoto@ruby-lang.org>
+
+	* io.c (rb_io_advise): AIX currently does not support a 32-bit call to
+	  posix_fadvise() if _LARGE_FILES is defined. Patch by Rei Odaira.
+	  [ruby-core:62968] [Bug #9914]
+
+Sun Jun  8 04:52:40 2014  Jun Hiroe  <Jun.Hiroe@gmail.com>
+
+	* string.c (rb_str_slice_bang): [DOC] update return value against
+	  a fixnum, which has changed because of M17N.  [fix GH-631]
+
+Sat Jun  7 22:13:42 2014  Benoit Daloze  <eregontp@gmail.com>
+
+	* numeric.c (do_coerce): Add a warning when an exception is raised
+	  or an invalid value is returned in #coerce called by
+	  numeric comparison operators and the exception
+	  thrown by the caller has no information on the failure.
+	  In the next release such exception should not be rescued or
+	  should be the cause of the caller exception. nil is accepted
+	  as the "no possible coercion" return value. See #7688.
+
+	* test/ruby/test_numeric.rb: Add corresponding test.
+
+Sat Jun  7 18:15:33 2014  Benoit Daloze  <eregontp@gmail.com>
+
+	* numeric.c (bit_coerce): remove constant parameter `err'
+	  (always TRUE) of bit_coerce().
+
+Sat Jun  7 16:01:57 2014  Yutaka Kanemoto  <kanemoto@ruby-lang.org>
+
+	* cont.c (rb_fiber_struct): keep context.uc_stack.ss_sp and context.uc_stack.ss_size
+	  for later use. Patch by Rei Odaira. [ruby-core:62945] [Bug #9905]
+
+Sat Jun  7 12:51:51 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (read_all): truncate the buffer before appending read data,
+	  instead of truncating before reading.
+	  [ruby-core:55951] [Bug #8625]
+
+Sat Jun  7 12:28:53 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/digest/digest.c (rb_digest_instance_equal): no need to call
+	  `to_s` twice.  [Bug #9913]
+
+Sat Jun  7 11:35:01 2014  Tanaka Akira  <akr@fsij.org>
+
+	* object.c (rb_mod_initialize_clone): Override Kernel#initialize_clone
+	  to avoid an exception on Class.new.freeze.clone.to_s.
+	  Reported by Andrew Grimm.  [ruby-core:41858] [Bug #5828]
+
+Sat Jun  7 06:03:11 2014  Benoit Daloze  <eregontp@gmail.com>
+
+	* ext/digest/digest.c (rb_digest_instance_equal):
+	  fix #== for non-string arguments. [ruby-core:62967] [Bug #9913]
+
+	* test/digest/test_digest.rb: add test for above.
+
+Fri Jun  6 22:19:26 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (private_recv_p): check by node type, instead of a
+	  magic number.
+
+	* node.h (NODE_PRIVATE_RECV), parse.y (attrset_gen): remove
+
+Fri Jun  6 17:07:08 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_compile_each), parse.y (new_attr_op_assign_gen):
+	  allow op assign to a private attribute.
+	  [ruby-core:62949] [Bug #9907]
+
+Fri Jun  6 13:39:32 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (io_setstrbuf, io_read): should not shorten the given buffer until
+	  read succeeds.  [ruby-core:55951] [Bug #8625]
+
+Fri Jun  6 07:41:41 2014  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: dump empty symbols with a
+	  tag so that they can be parsed on input. [Bug #9873] [ruby-core:62825]
+	* test/psych/test_symbol.rb: test for change
+
+Thu Jun  5 16:08:39 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_page_sweep): refactoring.
+
+	* gc.c (gc_page_sweep): should not set, but add final_slots into
+	  sweep_page->final_slots.
+
+Thu Jun  5 14:36:24 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (jemalloc): check for the header regardless drop-in
+	  libjemalloc is found, for `malloc_conf` declaration.
+
+	* version.c (ruby_show_version): show `malloc_conf` if set.
+	  [Feature #9113]
+
+	* configure.in (with-jemalloc): also check for header, for ABIs
+	  which JEMALLOC_MANGLE is needed, i.e., Mach-O and PE-COFF
+	  platforms.  [ruby-core:62939] [Feature #9113]
+
+	* include/ruby/missing.h: include alternative malloc header to
+	  replace memory management functions.
+
+	* dln.c, io.c, parse.y, st.c: undef malloc family before
+	  re-definition to suppress warnings.
+
+Thu Jun  5 12:52:18 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* man/ruby.1: remove rubyforge entry.
+
+Thu Jun  5 12:45:32 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* misc/README: use github link instead of rubyforge.
+
+Thu Jun  5 10:03:29 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (obj_free): check also FL_PROMOTED bit by RVALUE_OLD_P().
+
+Thu Jun  5 03:45:28 2014  Eric Wong  <e@80x24.org>
+
+	* configure.in: add --with-jemalloc option
+	  [ruby-core:62912]
+
+Wed Jun  4 22:28:14 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: introduce RZombie to manage zombie objects.
+	  Rewrite finalizing logics with this type.
+
+	* gc.c (gc_verify_internal_consistency): verify zombie (finalizing)
+	  objects count.
+
+Wed Jun  4 22:09:53 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* re.c (match_aref, rb_reg_regsub): consider encoding of captured
+	  names, encoding-incompatible should not match.
+	  [ruby-dev:48278] [Bug #9903]
+
+Wed Jun  4 21:23:52 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* re.c (match_aref): should not ignore name after NUL byte.
+	  [ruby-dev:48275] [Bug #9902]
+
+Wed Jun  4 04:08:37 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm.c (core_hash_merge_kwd): should return the result hash, which
+	  may be converted from and differ from the given argument.
+	  [ruby-core:62921] [Bug #9898]
+
+Tue Jun  3 23:32:34 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ruby.c (load_file_internal2): Extracted from load_file_internal.
+	  (load_file_internal): Invoke load_file_internal2 using rb_protect.
+	  Close an opened FD if load_file_internal2 raises an exception.
+
+Tue Jun  3 19:11:45 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_objspace_free): should not rest_sweep() here.
+	  Some data structures are already freed.
+
+Tue Jun  3 18:43:51 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_gc.rb: allocate more objects to invoke GC by newobj.
+	  GC allows extending pages depends on heap_increment.
+
+Tue Jun  3 18:01:27 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_gc_call_finalizer_at_exit): add
+	  gc_verify_internal_consistency() when RGENGC_CHECK_MODE >= 2.
+
+Tue Jun  3 17:54:21 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: change the counting method for young objects.
+	  clear counter at the beginning of every GC and
+	  count promoted (infant->young) objects.
+
+	  Some promotions (infant->young) are transition of promoting to old
+	  objects. We should not count such promotions.
+
+	  With this technique, we don't need to check young objects
+	  at obj_free().
+
+Tue Jun  3 16:38:19 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: add verifying counters code in gc_verify_internal_consistency().
+	  gc_verify_internal_consistency() counts all
+	  - live objects
+	  - young objects (if age2 promotion)
+	  - old objects
+	  in all pages and compares with objspace managing counters.
+
+	* gc.c (gc_after_sweep): do gc_verify_internal_consistency()
+	  when RGENGC_CHECK_MODE >= 2.
+
+Tue Jun  3 13:14:04 2014  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/net/imap.rb (body_type_1part): Gmail IMAP reports a body
+	  type as "MIXED" followed immediately by params
+	  [ruby-core:62864] [Bug #9885]
+	  Patch by @rayners (David Raynes). [Fixes GH-622]
+	  https://github.com/ruby/ruby/pull/622
+
+Tue Jun  3 13:18:24 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (objspace_live_slot): live slot count should not include final
+	  slot (contains T_ZOMBIE) count.
+
+Tue Jun  3 13:03:21 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (obj_free): fix spacing.
+
+Tue Jun  3 12:59:32 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (check_gen_consistency): fix error message.
+
+Tue Jun  3 12:40:23 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: count old/young objects more correctly.
+
+	* gc.c (RVALUE_DEMOTE_FROM_OLD): decrement old object count.
+
+	* gc.c (RVALUE_DEMOTE_FROM_YOUNG): decrement young object count.
+
+	* gc.c (rb_gc_resurrect): increment old object count.
+
+	* gc.c (gc_marks_body): should not add old object count.
+	  This code is completely my misunderstanding.
+
+	* gc.c (rb_gc_force_recycle): decrement young or old object count
+	  correctly.
+
+Tue Jun  3 12:26:47 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/memory_status.rb: add $LOAD_PATH to load test/unit
+	  correctly for fiddle/import unavailable environments.
+
+Tue Jun  3 09:45:13 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/openssl/test_ssl.rb (OpenSSL::TestSSL#test_verify_result):
+	  shouldn't use same server for respective tests, because the 1st
+	  test sometimes kills the server main loop silently.
+	  [Bug #9881] [ruby-dev:48266]
+
+Tue Jun  3 01:34:59 2014  Zachary Scott  <e@zzak.io>
+
+	* README.EXT: [DOC] Add rb_call_super when subclassing from @robin850
+	  [Fixes GH-623] https://github.com/ruby/ruby/pull/623
+
+Mon Jun  2 17:14:49 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (ruby_vm_destruct): remove useless call of
+	  rb_gc_force_recycle().
+
+	  At this line, a VM object is already freed
+	  (is changed to T_NONE) by rb_gc_call_finalizer_at_exit().
+
+Mon Jun  2 15:50:24 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* eval.c (rb_using_refinement): add write-barriers for
+	  cref->nd_refinements.
+
+Mon Jun  2 12:26:08 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* CONTRIBUTING.md: added contributing guide for github. [fix GH-625]
+
+Mon Jun  2 07:30:33 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/envutil.rb (default_warning): New method.
+
+	* test/ruby/test_autoload.rb: Use EnvUtil.default_warning.
+
+Mon Jun  2 07:05:59 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/encoding.h: constify `rb_encoding` arguments.
+
+	* include/ruby/oniguruma.h: constify `OnigEncoding` arguments.
+
+Sun Jun  1 12:05:10 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/drb: Wrap tests definitions by DRbTests module.  This makes
+	  several tests (ACLEntryTest, TestBug4409, etc.) easier to understand
+	  that they are tests for DRb.
+
+Sun Jun  1 11:36:25 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/rinda/ring.rb (RingFinger#make_socket): Close the socket on
+	  exception.
+
+Sun Jun  1 06:55:26 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (intern_str): dynamic attrset ID is registered by
+	  `rb_id_attrset()` already, so no further registration is needed.
+	  [ruby-core:62861]
+
+Sun Jun  1 04:52:47 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/English.rb: [DOC] $LOADED_FEATURES moved to load.c [Fixes GH-620]
+	  Patch submitted by @leafac in https://github.com/ruby/ruby/pull/620
+	* doc/globals.rdoc: Added $LOADED_FEATURES to list
+
+Sat May 31 22:30:14 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/leakchecker.rb: Leak checker extracted from
+	  test/lib/minitest/unit.rb.
+
+Sat May 31 21:15:43 2014  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* thread.c (rb_thread_atfork_internal): My compiler complains
+	  about this variable being used before initialized. I looked at
+	  the code and expanded the macro and turned out it was actually
+	  USED for pointer arithmetic, not dereferenced.  So this was
+	  never a serious bug.  But is annoying indeed to see warnings
+	  every time.  I added `=0` and all went healthy.
+
+	* configure.in: Also, I found that the problematic macro expansion
+	  only happens when we lack __typeof__ C extension, which shall
+	  not be the case of my compiler.  I added AC_C_TYPEOF to kick ass.
+
+Sat May 31 16:32:50 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/ipaddr.rb: extracted inline tests into test dir.
+	* test/test_ipaddr.rb: ditto.
+
+Sat May 31 16:29:21 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* ext/digest/lib/digest/hmac.rb: extracted inline tests into test dir.
+	* test/digest/test_digest_hmac.rb: ditto.
+
+Sat May 31 16:02:03 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/test_syslog.rb: remove executable.
+
+Sat May 31 08:58:32 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enc/unicode.c (init_case_fold_table): no longer need to
+	  initialize tables at runtime.
+
+	* enc/unicode/case-folding.rb (lookup_hash): make perfect hash to
+	  lookup case unfolding table 3.
+
+	* enc/unicode/case-folding.rb (lookup_hash): make perfect hash to
+	  lookup case unfolding table 2.
+
+	* enc/unicode/case-folding.rb (lookup_hash): make perfect hash to
+	  lookup case unfolding table 1.
+
+	* enc/unicode/case-folding.rb (lookup_hash): make perfect hash to
+	  lookup case folding table.
+
+	* enc/unicode/case-folding.rb (print_table): merge non-locale and
+	  locale tables, and reduce initializing loops.
+
+	* enc/unicode/case-folding.rb (CaseFolding): modularize, and add
+	  --output-file option.
+
+	* enc/unicode/case-folding.rb: script to convert CaseFolding.txt,
+	  translated from CaseFolding.py.
+
+Sat May 31 08:31:41 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/minitest/unit.rb: Check Tempfile leaks for each test method
+	  again.
+
+Sat May 31 03:50:50 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/delegate.rb: [DOC] Document raise in Delegator class
+	  Patch by @lucasmazza. [Fixes GH-621]
+	  https://github.com/ruby/ruby/pull/621
+
+Fri May 30 21:23:26 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/webrick/server.rb: Use a pipe to detect server shutdown.
+	  shutdown() or close() for listening socket is not a reliable.
+	  Actually, both doesn't work (doesn't wake up select()) on
+	  DragonFly BSD 3.6.2.
+
+	* test/webrick/utils.rb: :ShutdownSocketWithoutClose is not required
+	  now to immediate server shutdown detection.
+	  This fixes fd leaks.
+
+	* test/net/http/utils.rb: Ditto.
+
+Fri May 30 20:58:37 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/minitest/unit.rb (check_fd_leak): Sort the inspected
+	  objects list for a FD.
+
+Fri May 30 18:06:55 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/minitest/unit.rb (check_fd_leak): Try GC to delete leaked
+	  FDs.
+
+Fri May 30 12:05:59 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* test/lib/test/unit/parallel.rb (_run_suite): orig_stdout may be nil
+	  though I don't know the reason.
+
+Fri May 30 11:33:35 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_substr): need to reset code range for shared
+	  string too, not only copied string.
+	  [ruby-core:62842] [Bug #9882]
+
+Fri May 30 10:22:21 2014  Mark Lorenz  <mlorenz@covermymeds.com>
+
+	* lib/erb.rb (result): [DOC] no longer accepts a Proc, as
+	  Kernel.eval does not.  [fix GH-619]
+
+Fri May 30 07:25:46 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/-test-/dir: Dir#fileno implemented.
+
+	* test/lib/minitest/unit.rb (find_fds): Don't return the fd used to
+	  scan /proc/$$/fd.
+
+Fri May 30 04:48:00 2014  Eric Wong  <e@80x24.org>
+
+	* parse.y (rb_gc_mark_parser): remove, empty since r8758
+	* internal.h: ditto, not usable from extensions since 2.0.0
+	* gc.c (gc_mark_roots): remove checkpoint for parser
+
+Thu May 29 23:27:50 2014  Rei Odaira  <Rei.Odaira@gmail.com>
+
+	* signal.c (ruby_signal): should return either `old.sa_sigaction`
+	  or `old.sa_handler`, depending on whether `SA_SIGINFO` is set in
+	  `old.sa_flags`, because they may not be a union.
+	  [ruby-core:62836] [Bug #9878]
+
+Thu May 29 23:11:20 2014  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (pipe_open): Close pipes when rb_execarg_fixup() raises
+	  an exception.
+	  (rb_execarg_fixup_v): New function.
+
+Thu May 29 22:18:57 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/minitest/unit.rb (capture_subprocess_io): Close fds.
+
+Thu May 29 19:47:08 2014  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_io_s_pipe): Close pipes if io_encoding_set() raises an
+	  exception.
+	  (io_encoding_set_v): New function.
+
+Thu May 29 19:42:49 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/csv.rb (CSV.open): Close the opened file when an exception
+	  occur.
+
+Thu May 29 19:31:10 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/openssl/lib/openssl/ssl.rb (SSLServer#accept): Close a socket
+	  if any exception occur.
+
+Thu May 29 05:05:29 2014  Eric Wong  <e@80x24.org>
+
+	* include/ruby/ruby.h: Hide Symbol internals.
+	  (struct RSymbol): moved to internal.h
+	  (RSYMBOL): ditto
+
+Thu May 29 00:28:56 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/unixsocket.c (rsock_init_unixsock): Open a socket
+	  after path length check.
+	  This fixes a fd leak by TestSocket_UNIXSocket#test_too_long_path.
+
+Wed May 28 23:04:35 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_io.rb (test_flush_in_finalizer1): Use
+	  ObjectSpace.each_object to close files.
+	  GC.start is not reliable.
+
+Wed May 28 19:00:31 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/net/imap.rb (Net::IMAP#initialize): Close the opened socket when
+	  any exception occur.
+	  This fixes a fd leak by IMAPTest#test_imaps_post_connection_check
+	  which start_tls_session() raises an exception.
+
+Wed May 28 18:06:13 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/openssl/ossl_ssl.c (ossl_ssl_close): Fix sync_close to work
+	  when SSL is not started.
+	  This fix the fd leak by test_https_proxy_authentication in
+	  test/net/http/test_https_proxy.rb.
+
+Wed May 28 10:29:28 2014  Eric Wong  <e@80x24.org>
+
+	* vm.c (rb_vm_living_threads_foreach): remove function
+	  [ruby-core:62745]
+	* thread.c (terminate_i): remove
+	* thread.c (terminate_all): implement (inlines old terminate_i)
+	* thread.c (rb_thread_terminate_all): use terminate_all
+	* thread.c (rb_thread_fd_close_i): remove
+	* thread.c (rb_thread_fd_close): iterate inline
+	* thread.c (thread_list_i): remove
+	* thread.c (rb_thread_list): iterate inline
+	* thread.c (rb_thread_atfork_internal): iterate inline
+	* thread.c (terminate_atfork_i): update types to remove casts
+	* thread.c (terminate_atfork_before_exec_i): ditto
+	* thread.c (struct thgroup_list_params): remove definition
+	* thread.c (thgroup_list_i): remove
+	* thread.c (thgroup_list): iterate inline
+	* thread.c (check_deadlock_i): remove
+	* thread.c (debug_deadlock_check): implement (inlines check_deadlock_i)
+	* thread.c (debug_i): remove
+	* thread.c (rb_check_deadlock): iterate inline
+	* vm.c (vm_mark_each_thread_func): remove
+	* vm.c (rb_vm_mark): iterate inline
+	* vm_core.h (rb_vm_living_threads_remove): remove
+	* vm_trace.c (clear_trace_func_i): remove
+	* vm_trace.c (rb_clear_trace_func): iterate inline
+
+Wed May 28 09:30:51 2014  Eric Wong  <e@80x24.org>
+
+	* signal.c (signal_exec): ignore immediate cmd for SIG_IGN
+	* signal.c (trap_handler): set cmd to true for SIG_IGN
+	* signal.c (trap): handle nil and true values for oldcmd
+	  [Bug #9835]
+
+Wed May 28 01:02:54 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/tempfile.rb (Tempfile#inspect): Show "(closed)" if the tempfile
+	  is closed.
+
+Wed May 28 00:38:09 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/minitest/unit.rb: Use Tempfile#close! instead of
+	  Tempfile#unlink to close file descriptors.
+
+	* test/openssl/test_config.rb: Ditto.
+
+	* test/ruby/test_io.rb: Ditto.
+
+Wed May 28 00:06:18 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/net/ftp.rb (transfercmd): Close TCP server socket even if an
+	  exception occur.
+
+Tue May 27 23:50:07 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/cgi/core.rb: Use Tempfile#close! instead of Tempfile#unlink
+	  to close file descriptors.
+
+Tue May 27 23:06:46 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_number_literal_suffix): refine error message for
+	  extra dot and digits.
+
+Tue May 27 22:44:20 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/rexml: Avoid fd leaks.
+
+Tue May 27 22:24:25 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_document.rb: Indent.
+
+Tue May 27 22:15:29 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_document.rb: Wrap by REXMLTests module.
+
+Tue May 27 22:11:10 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_encoding_2.rb: Remove a needless file.
+
+Tue May 27 22:10:30 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_contrib.rb: Indent.
+
+Tue May 27 21:28:16 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/socket/ifaddr.c (ifaddr_inspect_flags): support IFF_SIMPLEX.
+
+Tue May 27 21:03:03 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/: Use REXMLTests as wrapping module for REXML tests.
+	  I avoid using the same module for library in test because
+	  it provides "include REXML" environment in test. Normally,
+	  users don't use REXML on "include REXML" environment. So I
+	  don't want to write tests on "include REXML" environment.
+
+Tue May 27 20:59:37 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_comment.rb: Remove needless REXML module wrapping.
+
+Tue May 27 20:56:49 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/openssl/test_pkcs7.rb: Fix inverted expected and actual values.
+
+Tue May 27 20:26:06 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_io.rb (test_flush_in_finalizer1): some opened fds are
+	  remain before GC, so unlink the tempfile is failed.
+
+Tue May 27 19:07:26 2014  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_io_autoclose_p): Don't raise on frozen IO.
+
+	* test/lib/minitest/unit.rb: IO#autoclose? may raise IOError.
+
+Tue May 27 19:01:49 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/openssl/test_pair.rb: Modify TestSSL#test_read_and_write
+	  to handle partial sysreads. [Bug #7398][ruby-core:49563]
+	* test/openssl/test_ssl.rb: ditto.
+
+Tue May 27 18:46:23 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/openssl/test_pkcs7.rb: Add tests for PKCS7#type= and add_data.
+	  [Feature #7399][ruby-core:49565]
+
+Tue May 27 17:45:09 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/openssl/test_hmac.rb (test_binary_update): Added Test for
+	  HMAC signing with UTF-8 String. [Bug #7512][ruby-core:50559]
+
+Tue May 27 17:10:14 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/runner.rb: fixed randomly test failure.
+	  [Bug #6573][ruby-core:45563]
+
+Tue May 27 16:58:12 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/test_timeout.rb (test_timeout): inverted test condition.
+	  [Bug #8523]
+
+Tue May 27 12:24:22 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/minitest/unit.rb: Show leaked file descriptors.
+
+Tue May 27 11:12:56 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (rb_io_fileno, rb_io_inspect): non-modification does not
+	  error on frozen IO.  [ruby-dev:48241] [Bug #9865]
+
+Tue May 27 00:00:21 2014  yui-knk  <spiketeika@gmail.com>
+
+	* insns.def (defineclass): fix typo in the instruction comment.
+	  [fix GH-618]
+
+Mon May 26 16:33:15 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_file.rb: skip the test of atime on Windows, because
+	  Windows delays updating atime about 1 hour.
+	  see more details:
+	    http://msdn.microsoft.com/en-us/library/windows/desktop/ms724290%28v=vs.85%29.aspx
+
+Mon May 26 12:25:36 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/optionparser.rb, lib/optparse.rb (OptParse): aliases.
+	  [ruby-core:62751] [Feature #9864]
+
+Mon May 26 07:59:34 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/minitest/unit.rb: Show Finished threads line-by-line.
+
+Mon May 26 01:39:02 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/csv.rb: Reject nil as data source for CSV.new, patch by @Peeja.
+	  [Fixes GH-580] https://github.com/ruby/ruby/pull/580
+
+Mon May 26 01:07:51 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/minitest/unit.rb: Show leaked threads and tempfiles
+	  line-by-line.
+
+Sun May 25 23:02:06 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/minitest/unit.rb (MiniTest::Assertions#diff): Remove
+	  tempfiles.
+
+Sun May 25 22:42:27 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/minitest/unit.rb: Check tempfile leak for each test class.
+
+Sun May 25 20:31:49 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (ac_cv_func_{getcontext,setcontext}): do not
+	  disable ucontext.h entirely, but disable use of functions only.
+	  `ucontext_t` is necessary in the signal handler now.
+
+Sun May 25 20:00:23 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* signal.c (check_stack_overflow): revert part of r46100, the
+	  previous condition was correct, and fix compilation error on
+	  other architecture linux.  [ruby-core:62746] [Bug #9862]
+
+Sun May 25 17:09:13 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/minitest/unit.rb: Less ObjectSpace.each_object(Tempfile)
+	  invocation.
+
+Sun May 25 16:54:06 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/minitest/unit.rb: Use Thread.list instead of
+	  ObjectSpace.each_object(Thread).
+
+Sun May 25 15:53:54 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/rinda/ring.rb (Rinda::RingServer#shutdown): Join the killed
+	  threads.
+
+Sun May 25 15:26:17 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/webrick/utils.rb: Override the inspect method of the thread
+	  used in WEBrick::Utils::TimeoutHandler.
+
+Sun May 25 14:22:30 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/openssl: Join threads.
+
+Sun May 25 12:46:47 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (rb_bug_context): new function to report bug with
+	  context.
+
+	* vm_dump.c (rb_vm_bugreport): accepts `ucontext_t` argument to
+	  dump machine registers.  based on [GH-584].
+
+	* signal.c (sigbus, sigsegv): dump machine registers if available.
+
+Sun May 25 12:32:42 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/minitest/unit.rb: Sort leaked threads and tempfiles.
+
+Sun May 25 12:15:30 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* signal.c (check_stack_overflow): fix condition to use ucontext
+	  register, mcontext_t dereference, and its member names, on Mac
+	  OS X.
+
+Sun May 25 11:58:26 2014  Zachary Scott  <e@zzak.io>
+
+	* enumerator.c: [DOC] Fix example to show Enumerator#peek behavior
+	  Patch by Erik Hollembeak [Bug #9814]
+
+Sun May 25 11:56:33 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vsnprintf.c (BSD_vfprintf): fix string width when precision is
+	  given.  as the result of `memchr` is NULL or its offset from the
+	  start cannot exceed the size, the comparison was always false.
+	  [ruby-core:62737] [Bug #9861]
+
+Sun May 25 11:32:42 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/yaml.rb: Remove Psych::EngineManager [Bug #8344]
+	* test/psych/*: ditto.
+
+Sun May 25 10:34:15 2014  Zachary Scott  <e@zzak.io>
+
+	* doc/regexp.rdoc: [DOC] Clarify whitespace matching by @allolex
+	  [Fixes GH-606] https://github.com/ruby/ruby/pull/606
+
+Sun May 25 10:19:34 2014  Zachary Scott  <e@zzak.io>
+
+	* enum.c: [DOC] Use #find in example to clarify alias by @rachellogie
+	  Patch submitted via documenting-ruby/ruby#34
+
+Sun May 25 10:16:43 2014  Zachary Scott  <e@zzak.io>
+
+	* cont.c: [DOC] Fix rdoc in example for Fiber#transfer by @majjoha
+	  Patch submitted via documenting-ruby/ruby#33
+
+Sun May 25 10:01:11 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/irb.rb: [DOC] Fixed syntax error in example by @jasdeepsingh.
+	  Patch submitted via documenting-ruby/ruby#32
+
+Sun May 25 09:58:02 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/fileutils/test_fileutils.rb (test_chown_R): Add tests for
+	  chown_R. [Feature #9383][ruby-core:59641]
+
+Sun May 25 09:57:09 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/fileutils/test_fileutils.rb: Added recursively chown tests.
+	  [Feature #9303][ruby-core:59325]
+
+Sun May 25 09:41:56 2014  Zachary Scott  <e@zzak.io>
+
+	* class.c: [DOC] Fixed grammar and examples of instance_methods.
+	  By @alex-frost via documenting-ruby/ruby#31
+
+Sun May 25 09:40:44 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/minitest/unit.rb: Show leaked threads and tempfiles.
+
+Sun May 25 08:54:38 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/openssl/test_partial_record_read.rb: Testing read_nonblock on
+	  a partial TLS record results in IO::WaitReadable by @mohamedhafez.
+	  [fix GH-547]
+
+Sun May 25 08:43:16 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* lib/logger.rb: refactored to include Logger::Period.
+
+Sun May 25 06:50:19 2014  Zachary Scott  <e@zzak.io>
+
+	* vm_eval.c: [DOC] Improve instance_eval description when given a
+	  block or String arguments. By @nathanl via documenting-ruby/ruby#28
+
+Sun May 25 06:29:39 2014  Zachary Scott  <e@zzak.io>
+
+	* array.c: [DOC] Clarify default argument for Array.new.
+	  By @Elffers [Fixes GH-610]
+
+Sat May 24 22:37:20 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* array.c: [DOC] Add more documents to shuffle! and shuffle.
+	  Contributed by @JuanitoFatas [ci skip][fix GH-612]
+
+Sat May 24 22:28:55 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/lib/minitest/.document: removed unused configuration.
+
+Sat May 24 19:08:47 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/minitest/spec.rb: Unused file removed.
+
+	* test/lib/minitest/autorun.rb: Don't require minitest/spec.
+
+	* test/lib/minitest/benchmark.rb: Ditto.
+
+Sat May 24 18:45:30 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/benchmark/test_benchmark.rb: Use test/unit.
+
+Sat May 24 16:20:59 2014  Eric Wong  <e@80x24.org>
+
+	* process.c (proc_getgroups, proc_setgroups): use ALLOCV_N
+	  [Bug #9856]
+
+Sat May 24 15:49:39 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/minitest/unit.rb (parallelize_me!): Removed.
+	  This fixes the line-by-line structure of the test result in verbose
+	  mode.  [ruby-core:54905]
+
+	* test/lib/minitest/parallel_each.rb: Removed.
+
+	* test/minitest/test_minitest_mock.rb: Don't call parallelize_me!.
+
+	* test/minitest/test_minitest_spec.rb: Ditto.
+
+	* test/minitest/test_minitest_unit.rb: Ditto.
+	  Tests for parallel feature removed.
+
+Sat May 24 15:29:10 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/minitest/hell.rb: Unused file removed.
+
+	* test/lib/minitest/pride.rb: Ditto.
+
+Sat May 24 15:05:32 2014  yui-knk  <spiketeika@gmail.com>
+
+	* enumerator.c (yielder_yield_push): Insert a break after the
+	  method return value.  [fix GH-617]
+
+Sat May 24 14:59:12 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/lib/minitest: Remove comments not appropriate now.
+
+	* test/minitest: Ditto.
+
+Sat May 24 14:02:04 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* NEWS: added minitest changes.
+
+Sat May 24 13:42:46 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/lib/test/unit/test-unit.gemspec: removed needless gemspec file.
+
+Sat May 24 09:39:06 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* defs/default_gems: removed minitest entry.
+
+Sat May 24 06:17:33 2014  Ryan Davis  <ryand-ruby@zenspider.com>
+
+	*  lib/minitest: minitest 4.7.5 removed. Need to support proper
+	  gem packaging / installation before minitest 5 can be added.
+
+Sat May 24 05:54:06 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/mkconstants.rb: More constants
+
+Sat May 24 00:25:34 2014  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* NEWS: add information of incompatibility about Prime.prime?
+	* lib/prime.rb: fix docs.
+
+Fri May 23 21:36:28 2014  Josh Goebel  <dreamer3@gmail.com>
+
+	* net/protocol.rb (using_each_crlf_line): fix SMTP dot-stuffing
+	  for messages not ending with a new-line.
+	  [ruby-core:61441] [Bug #9627] [fix GH-616]
+
+Fri May 23 03:48:08 2014  Eric Wong  <e@80x24.org>
+
+	* gc.c (rb_free_m_tbl): mark function as static
+
+	* method.h (rb_free_m_tbl): remove prototype
+
+Thu May 22 22:58:27 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/mkconstants.rb: More TCP option constants.
+	  Describe Linux and glibc versions.
+
+Thu May 22 20:38:10 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* file.c (stat_birthtime): add birthtime support [Feature #9647]
+
+	* file.c (rb_stat_birthtime): add File::Stat.birthtime
+
+	* file.c (rb_file_s_birthtime): add File.birthtime
+
+	* file.c (rb_file_birthtime): add File#birthtime
+
+	* configure.in: check struct stat.st_birthtimespec.
+
+Thu May 22 19:38:14 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* file.c: remove IO::Statfs because of reject. [Feature #9772]
+
+Thu May 22 14:02:13 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enc/jis/props.kwd: constify character property tables of JIS
+	  based encodings by perfect hash.
+
+	* enc/euc_jp.c, enc/shift_jis.c: use character property functions.
+
+Wed May 21 12:21:10 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/option.c: Fix compilation error on Android.
+	  Bionic doesn't define TCP state constants.
+
+Wed May 21 11:42:31 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: workaround for Info.plist to get rid of `dsymutil`
+	  crash by wrong files in parent directories.
+	  [ruby-core:62594] [Bug #9840]
+
+Tue May 20 20:57:34 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/ruby/test_dir.rb (test_glob): added testcase of double
+	  slash path.
+
+Tue May 20 04:58:54 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/extconf.rb: Don't check fields of struct tcp_info if the
+	  structure is not available.
+
+Mon May 19 23:13:33 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/option.c (inspect_tcp_info): Permit longer data.  (glibc
+	  2.7 adds tcpi_rcv_rtt, tcpi_rcv_space and tcpi_total_retrans to
+	  struct tcp_info.)
+
+Mon May 19 20:49:07 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/option.c (inspect_tcp_info): New function to inspect
+	  struct tcp_info.
+	  (sockopt_inspect): Use inspect_tcp_info.
+
+	* ext/socket/extconf.rb: Check tcp_info related things.
+
+	* ext/socket/rubysocket.h: Include netinet/tcp_fsm.h if available.
+
+Mon May 19 19:36:39 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/dbm/test_dbm.rb: Use Etc.uname.
+
+	* test/gdbm/test_gdbm.rb: Ditto.
+
+Mon May 19 16:54:22 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/etc/etc.c (etc_uname): add support for Windows using
+	  GetVersionExW(), GetSystemInfo(), and GetComputerNameExW() with
+	  `ComputerNameDnsHostname`.  [Feature #9842]
+
+Mon May 19 16:29:48 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_pat_search): advance by byte offset but not by char
+	  offset.  [ruby-core:62669] [Bug #9849]
+
+Mon May 19 14:06:18 2014  Shota Fukumori  <her@sorah.jp>
+
+	* bin/testrb: Removed. Forgot to remove in r45971.
+	  [Feature #9711] [ruby-core:62620]
+
+Sun May 18 16:42:08 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_m17n_comb.rb (test_str_crypt): Use Etc.confstr to
+	  detect the glibc version.
+	  libc.so is not an executable on Debian GNU/kFreeBSD 7.0 (wheezy).
+
+Sun May 18 12:15:54 2014  Jonathan Mukai-Heidt  <johnnymukai@gmail.com>
+
+	* io.c (argf_each_line, argf_inplace_mode_set): [DOC] Update ARGF
+	  documentation examples.  `ARGF.lines` has been deprecated in
+	  favor of `ARGF.each_line`.  [Fixes GH-615]
+
+Sun May 18 11:59:25 2014  Tanaka Akira  <akr@fsij.org>
+
+	* missing/nextafter.c: Include ruby/missing.h.
+
+Sun May 18 11:09:28 2014  Tanaka Akira  <akr@fsij.org>
+
+	* win32/Makefile.sub: Add nextafter.obj to MISSING.
+
+Sun May 18 10:46:04 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/etc/etc.c: Etc.sysconf, Etc.confstr and IO#pathconf implemented.
+
+	* ext/etc/extconf.rb: Check sysconf(), confstr() and fpathconf().
+
+	* ext/etc/mkconstants.rb: New file.
+
+	   [ruby-core:62600] [Feature #9842]
+
+Sun May 18 09:58:17 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/etc/etc.c: Etc.uname method implemented.
+
+	* ext/etc/extconf.rb: Check uname() function.
+
+	  [ruby-core:62139] [Feature #9770]
+
+Sun May 18 09:16:33 2014  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Check nextafter() availability.
+
+	* include/ruby/missing.h (nextafter): New optional declaration.
+
+	* missing/nextafter.c: New file.
+
+	* numeric.c: Float#next_float and Float#prev_float implemented.
+
+	   [ruby-core:62562] [Feature #9834]
+
+Sun May 18 09:02:17 2014  Tanaka Akira  <akr@fsij.org>
+
+	* enum.c: Enumerable#slice_after implemented.
+
+	* enumerator.c: Enumerator::Lazy#slice_after implemented.
+
+	  Requested by Tsuyoshi Sawada.  [ruby-core:58123] [Feature #9071]
+
+Sun May 18 08:22:25 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (io_setstrbuf): always check if the buffer is modifiable.
+	  [ruby-core:62643] [Bug #9847]
+
+Sun May 18 01:21:23 2014  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/ruby.h: Hide Rational internal.
+	  (RRational): Moved to internal.h
+	  (RRATIONAL): Ditto.
+	  (RRATIONAL_SET_NUM): Moved to rational.c.
+	  (RRATIONAL_SET_DEN): Ditto.
+
+	* rational.c (rb_rational_num): New function.
+	  (rb_rational_den): Ditto.
+
+	* include/ruby/intern.h (rb_rational_num): Declared.
+	  (rb_rational_den): Ditto.
+
+	* ext/bigdecimal/bigdecimal.c: Follow the above change.
+
+	* ext/date/date_core.c: Ditto.
+
+	  [ruby-core:60665] [Feature #9513]
+
+Sat May 17 17:04:32 2014  Shota Fukumori  <her@sorah.jp>
+
+	* NEWS: Add news about removal of lib/test/**/*.rb.
+
+Sat May 17 16:57:33 2014  Shota Fukumori  <her@sorah.jp>
+
+	* lib/test: Removed because ruby's test cases now independent to
+	  lib/test by r45970. [Feature #9711] [ruby-core:62620]
+
+	  I'm still considering about the future of lib/minitest, lib/test.
+	  (bundling gems?)
+
+Sat May 17 15:06:40 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/runner.rb: remove dependency test-unit and minitest
+	  from stdlib when running with test-all.
+	  [Feature #9711][ruby-core:61890]
+	* test/testunit/*.rb: ditto.
+	* test/lib: ditto.
+
+Sat May 17 11:02:49 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (glob_helper): try match PLAIN as well as ALPHA, which are
+	  separated by previous commits.  [ruby-core:61552] [Bug #9648]
+
+	* dir.c (glob_make_pattern): set PLAIN for non-magical path to
+	  skip parts which not need to glob.
+	  [ruby-core:61552] [Bug #9648]
+
+	* dir.c (has_magic): return ALPHA at alphabetical name regardless
+	  FNM_CASEFOLD flag.
+
+	* dir.c (glob_helper): fix conditions for ALPHA.
+	  [ruby-core:61552] [Bug #9648]
+
+Sat May 17 01:49:27 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (glob_helper): reduce matching at non-magical path on
+	  Windows.
+
+Sat May 17 01:49:23 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (glob_pattern_type): separate names with alphabet but no
+	  magical from plain.
+
+	* dir.c (glob_helper): match plain names as-is to treat super-root
+	  same as the root.  [ruby-core:61552] [Bug #9648]
+
+Fri May 16 17:38:22 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_marks, gc_marks_body): increase the counter of young objects
+	  at the major GC because AGE2Promotion changes all old objects into
+	  young objects at major GC.
+
+Fri May 16 17:26:24 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_before_sweep): heap_pages_swept_slots should contains
+	  heap_pages_increment.
+
+	  For example, GC by exceeding malloc_limit can remain
+	  heap_pages_increment.
+
+Thu May 15 21:18:43 2014  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* configure.in: enable SSE2 on mingw. target='i386-pc-mingw32'.
+	  [ruby-core:62095] [Bug #8358]
+
+Thu May 15 21:04:06 2014  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* lib/test/unit/parallel.rb: fix test-all parallel failure if a test
+	  is skipped after raise.
+	  DL::TestFunc#test_sinf is skipped after raise on mingw ruby.
+	  But it causes Marshal.load failure due to undefined class/module
+	  DL::DLError when doing test-all parallel and test-all doesn't
+	  complete. We create new MiniTest::Skip object to avoid Marshal.load
+	  failure.
+	  [ruby-core:62133] [Bug #9767]
+
+	* test/testunit/test_parallel.rb (TestParallel): add a test.
+
+	* test/testunit/tests_for_parallel/ptest_forth.rb: ditto.
+
+Thu May 15 18:57:23 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (garbage_collect_body): move gc_heap_prepare_minimum_pages()
+	  from gc_sweep().
+
+Thu May 15 18:51:25 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (heap_extend_pages): calculate next growing heap size.
+
+	* gc.c (heap_set_increment): accept addition pages instead of
+	  minimum pages.
+
+	* gc.c (gc_after_sweep): use heap_etend_pages().
+
+	* gc.c (gc_heap_prepare_minimum_pages): add only 1 page.
+
+	* gc.c (heap_ready_to_gc): add only 1 page.
+
+Thu May 15 18:42:49 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: introduce macros to remove magic number.
+
+	  GC_HEAP_FREE_SLOTS_MIN_RATIO = 0.3: guarantee minimum empty slots
+	                                      ratio after sweep.
+	  GC_HEAP_FREE_SLOTS_MAX_RATIO = 0.8: allow to free pages 0.2 (= 1-0.8)
+	                                      of current existing slots.
+
+Thu May 15 17:32:51 2014  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* thread_win32.c (rb_w32_stack_overflow_handler): use Structured
+	  Exception Handling by AddVectoredExceptionHandler() for machine
+	  stack overflow on mingw.
+	  This would be equivalent to the handling using __try and __except
+	  on mswin introduced by r43748.
+
+Wed May 14 19:31:03 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/openssl/depend: remove dependency from internal headers.
+	  [Feature #9612]
+
+	* ext/openssl/ossl.c (ossl_fips_mode_set): ditto.
+
+	* ext/coverage/depend: ditto.
+
+	* include/ruby/thread_native.h: added.
+
+	  This header file only provides wrapper functions to control
+	  native threads. These wrapper functions are used by MRI
+	  implementation.
+
+	* vm_core.h: use include/ruby/thread_native.h.
+
+	* thread.c: ditto.
+
+	* thread_pthread.h: ditto.
+
+	* thread_win32.h: ditto.
+
+	* thread_native.h: removed.
+
+Wed May 14 18:03:28 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: enable RGENGC_AGE2_PROMOTION.
+
+Wed May 14 18:02:30 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rgengc_rememberset_mark): promote remembered object earlier.
+
+Mon May 12 23:57:15 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (rb_cv_atan2_inf_c99): check whether runtime atan2
+	  handles Inf as C99. [ruby-core:62536] [Bug #9831]
+
+Mon May 12 20:33:01 2014  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Invoke AC_REPLACE_FUNCS for each function.
+
+Mon May 12 19:52:11 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: count young object correctly and show it in GC.stat
+	  on RGENGC_AGE2_PROMOTION.
+
+	* gc.c (RVALUE_PROMOTE_YOUNG): decrement young object count on
+	  YOUNG->OLD.
+
+	* gc.c (obj_free): decrement young object count when young object
+	  freed.
+
+	* gc.c (gc_marks): should not clear young object count.
+
+	* gc.c (gc_stat_internal): GC.stat :young_object information.
+
+Mon May 12 01:30:59 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/ifaddr.c (IS_IFADDRS): Unused macro removed.
+
+	* ext/strscan/strscan.c (BUFSIZE): Ditto.
+
+	* ext/zlib/zlib.c (OBJ_IS_FREED): Ditto.
+
+Sun May 11 22:27:18 2014  Tanaka Akira  <akr@fsij.org>
+
+	* compile.c (BUFSIZE): Unused macro removed.
+
+	* vm.c (BUFSIZE): Ditto.
+
+	* pack.c (INT64toNUM): Ditto.
+	  (UINT64toNUM): Ditto.
+	  (BYTEWIDTH): Ditto.
+
+	* time.c (lshift): Ditto.
+	  (UINT64toNUM): Ditto.
+	  (id_lshift): Unused variable removed.
+
+Sun May 11 21:23:27 2014  Tanaka Akira  <akr@fsij.org>
+
+	* pack.c (swaps): Unused macro removed.
+	  (swapi): Ditto.
+	  (swapl): Ditto.
+	  (swapll): Ditto.
+
+Sun May 11 08:02:49 2014  Eric Wong  <e@80x24.org>
+
+	* vm_core.h (rb_vm_t): list_head and counter for living_threads
+	  (rb_thread_t): vmlt_node for living_threads linkage
+	  (rb_vm_living_threads_init): new function wrapper
+	  (rb_vm_living_threads_insert): ditto
+	  (rb_vm_living_threads_remove): ditto
+	* vm.c (rb_vm_living_threads_foreach): new function wrapper
+	* thread.c (terminate_i, thread_start_func_2, thread_create_core,
+	  thread_fd_close_i, thread_fd_close): update to use new APIs
+	* vm.c (vm_mark_each_thread_func, rb_vm_mark, ruby_vm_destruct,
+	  vm_memsize, vm_init2, Init_VM): ditto
+	* vm_trace.c (clear_trace_func_i, rb_clear_trace_func): ditto
+	* benchmark/bm_vm_thread_close.rb: added to show improvement
+	* ccan/build_assert/build_assert.h: added as a dependency of list.h
+	* ccan/check_type/check_type.h: ditto
+	* ccan/container_of/container_of.h: ditto
+	* ccan/licenses/BSD-MIT: ditto
+	* ccan/licenses/CC0: ditto
+	* ccan/str/str.h: ditto (stripped of unused macros)
+	* ccan/list/list.h: ditto
+	* common.mk: add CCAN_LIST_INCLUDES
+	  [ruby-core:61871][Feature #9632 (part 1)]
+
+Sun May 11 01:10:31 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* signal.c (rb_f_kill): directly enqueue an ignored signal to self,
+	  except for SIGSEGV and SIGBUS.  [ruby-dev:48203] [Bug #9820]
+
+Sat May 10 22:37:56 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (push_glob): match in UTF-8 on Mac OS X.
+	  [ruby-dev:48213] [Bug #9825]
+
+Sat May 10 13:32:18 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread.c (thread_start_func_2): stop if forked in a sub-thread,
+	  the thread has become the main thread.
+	  [ruby-core:62070] [Bug #9751]
+
+Sat May 10 09:32:19 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* man/ruby.1: remove deadlink. [ruby-core:62145][Bug #9773]
+
+Sat May 10 08:47:36 2014  Tanaka Akira  <akr@fsij.org>
+
+	* signal.c (trap): Return "SYSTEM_DEFAULT" if SIG_DFL is set.
+
+Fri May  9 14:27:05 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (RUBY_SETJMP_TYPE): check for setjmp type after
+	  CCDLFLAGS is appended to CFLAGS, since __builtin_setjmp can be
+	  affected.  [ruby-core:62469] [Bug #9818]
+
+Fri May  9 03:59:06 2014  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* lib/delegate.rb: Fix example of using delegator.
+	  patched from Andrey Koleshko. [Fixes GH-505]
+
+Fri May  9 03:42:43 2014  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* lib/shell.rb: add documentation in lib/shell.rb
+	  patched from reprah. [Fixes GH-516]
+
+Fri May  9 03:28:04 2014  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* lib/fileutils.rb: show fileutils require at top.
+	  patched from Richard Schneeman. [Fixes GH-604]
+
+Fri May  9 03:07:09 2014  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* lib/prime.rb (Prime#prime?): negative numbers can't be primes
+	  by definition. reported by Ivan Kataitsev. [Bug #7395]
+	* test/test_prime.rb: add test.
+
+Thu May  8 14:34:29 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (rb_mod_init_copy): always clear instance variable,
+	  constant and method tables first, regardless the source tables.
+	  [ruby-dev:48182] [Bug #9813]
+
+Thu May  8 10:53:14 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: OpenBSD needs to include sys/param.h before include
+	  sys/mount.h. [ruby-dev:48167]
+
+Thu May  8 10:17:04 2014  Karsten Sperling  <karsten@sperling.co.nz>
+
+	* lib/webrick/httpserver.rb (WEBrick::HTTPServer#run): stop
+	  handling requests on shutdown, even if the socket is readable
+	  and IO.select() returns true.  [Fixes GH-607]
+
+	* lib/webrick/server.rb (WEBrick::GenericServer#start): IO.select()
+	  raises ENOTSOCK on shutdown on Windows.
+
+Wed May  7 21:45:00 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/openssl/lib/openssl/ssl.rb (OpenSSL::SSL::SSLServer#accept):
+	  Consider Socket#accept as well as TCPServer#accept.
+	  Reported by Sam Stelfox.  [ruby-core:62064] [Bug #9750]
+
+Wed May  7 17:24:07 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* numeric.c (num_step_scan_args): check keyword arguments and fail
+	  if they conflict with positional arguments.
+	  [ruby-dev:48177] [Bug #9811]
+
+Wed May  7 12:06:14 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/driver.rb: remove debug output and output results into
+	  specified file.
+
+Wed May  7 11:55:40 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/driver.rb: add '--rawdata-output=[FILE] option to output
+	  raw results into FILE.
+
+Wed May  7 11:25:41 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (rb_f_local_variables): exclude variables hidden by
+	  shadowing.  [ruby-core:60501] [Bug #9486]
+
+	* vm.c (collect_local_variables_in_iseq): ditto.
+
+Tue May  6 23:29:05 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (new_bv_gen): no duplicated names, if already added in
+	  shadowing_lvar().
+
+	* parse.y (local_tbl_gen): remove local variables duplicated with
+	  arguments.
+	  [ruby-core:60501] [Bug #9486]
+
+Tue May  6 18:48:50 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/time.rb (Time.make_time): Adjust the time zone of "now".
+
+Tue May  6 18:33:12 2014  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* io.c (io_{read,write}_nonblock): use rb_get_kwargs instead of
+	  rb_hash_aref.
+
+Tue May  6 18:03:05 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/time.rb (Time.make_time): Argument validation code moved from
+	  Time.parse and Time.strptime.
+
+Tue May  6 17:27:06 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/time.rb (Time.parse): [DOC] Fix an example in the documentation
+	  to use EST.
+	  Reported by Marcus Stollsteimer.
+	  [ruby-core:60778] [Bug #9521] and [ruby-core:61718] [Bug #9682]
+
+Tue May  6 04:31:48 2014  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* file.c (rb_f_test): removed meaningless "case 'a'".
+
+Tue May  6 01:28:14 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/open-uri.rb (OpenURI.open_uri): Call StringIO#close only if
+	  the StringIO object is not closed yet.
+	  Reported by Jordi Massaguer Pla.  [ruby-core:42538] [Bug #6010]
+
+Tue May  6 01:08:01 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/driver.rb: define File::NULL if not defined and /dev/null
+	  is available to run benchmark driver on ruby 1.9.2.
+
+Mon May  5 23:53:24 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/mkconstants.rb: Add IP_TRANSPARENT.
+	  IP_TRANSPARENT is provieded since glibc-2.12.
+	  Reported by Eliezer Croitoru.  [ruby-core:50372] [Bug #7476]
+
+Mon May  5 22:29:47 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (check_exec_redirect): Open the file in write mode for
+	  redirect from [:out, :err].
+	  Proposed and implemented by Yusuke Endoh.
+	  [ruby-dev:41430] [Feature #3348]
+
+Mon May  5 21:52:35 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/pathname/lib/pathname.rb (cleanpath_aggressive): make all
+	  separators File::SEPARATOR from File::ALT_SEPARATOR.
+	  Reported by Daniel Rikowski.
+	  Fixed by Nobuyoshi Nakada.  [Bug #9618]
+
+	* ext/pathname/lib/pathname.rb (cleanpath_conservative): ditto.
+
+Mon May  5 21:48:04 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/pathname/lib/pathname.rb (Pathname#/): Aliased to Pathname#+.
+	  Suggested by Alexey Muranov.  [ruby-core:61432] [Feature #9625]
+
+Mon May  5 17:26:09 2014  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* math.c (rb_math_sqrt): omitted exporting an unused function,
+	  anyway.
+	* internal.h: follows the above change.
+
+Mon May  5 11:44:03 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/time.rb (Time.strptime): Raise ArgumentError if Date._strptime
+	  doesn't extract date information.
+	  Reported by tadayoshi funaba.  [ruby-core:62349]
+
+Mon May  5 01:12:27 2014  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c (rt_rewrite_frags): a new feature (not a
+	  bug fix) of strptime.  applies offset even if the given date is
+	  not local time (%s and %Q).  This is an exceptional feature and
+	  I do NOT recommend to use this at all.  Thank you git community.
+
+Sun May  4 20:51:32 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/time.rb (Time.force_zone!): Use usual local time if it has
+	  expected offset from UTC.
+
+Sun May  4 17:58:12 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/time.rb (Time.force_zone!): New private method.
+	  (Time.make_time): Use Time.force_zone!.
+	  (Time.strptime): Ditto.
+	  (Time.rfc2822): Ditto.
+	  (Time.xmlschema): Ditto.
+
+	* lib/rss/rss.rb (Time.w3cdtf): Use Time.force_zone!.
+
+Sun May  4 10:22:59 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* math.c (math_atan2): return values like as expected by C99 if
+	  both two arguments are infinity.  based on the patch by cremno
+	  phobia <cremno AT mail.ru> in [ruby-core:62310].  [Feature #9799]
+
+Sun May  4 03:46:42 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/time.rb (Time.httpdate): Always return a UTC Time object.
+
+Sun May  4 03:26:39 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/time.rb (Time.make_time): Refactored.
+
+Sun May  4 02:53:17 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/time.rb (Time.rfc2822): Fix year completion.
+	  Produce fixed-offset time object if appropriate.
+	  (Time.xmlschema): Produce fixed-offset time object if appropriate.
+
+Sat May  3 23:52:20 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/time.rb (make_time): Produce fixed-offset time object if
+	  appropriate.
+	  (Time.strptime): Use d[:zone] instead of d[:offset].
+
+	* lib/rss/rss.rb (Time.w3cdtf): Produce fixed-offset time object if
+	  appropriate.
+
+Sat May  3 20:21:38 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/time.rb (Time.strptime): Use d[:offset] if d[:seconds] is not
+	  given.
+	  Reported by tadayoshi funaba.  [ruby-core:62322]
+
+Sat May  3 04:04:16 2014  Eric Wong  <e@80x24.org>
+
+	* complex.c (parse_comp): replace ALLOCA_N with ALLOCV_N/ALLOCV_END
+	  [Bug #9608]
+	* rational.c (read_digits): ditto
+
+Sat May  3 00:06:30 2014  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* file.c (HAVE_STRUCT_STATVFS_F_BASETYPE): File::Statfs#fstypename
+	  is supported on AIX, HP-UX, and Solaris, by using the value of
+	  struct statvfs.f_basetype.
+
+	* configure.in (HAVE_STRUCT_STATVFS_F_BASETYPE): check struct
+	  statvfs.f_basetype which is available on AIX, HP-UX, and Solaris.
+
+Fri May  2 21:04:02 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (next_id): no reason to set ID_STATIC_SYM here, as ID
+	  returned by rb_intern3 can be a dynamic symbol and the static
+	  symbol flag is set otherwise.  [Bug #9787]
+
+Fri May  2 11:32:51 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/test_io.rb (test_seek, test_seek_symwhence): defer
+	  File::Statfs#type call which may not be implemented, to mitigate
+	  errors on platforms where SEEK_DATA is available but f_type in
+	  struct statfs is not.  [ruby-dev:48154] [Bug #9789]
+
+Fri May  2 10:37:55 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (rb_id_attrset): turn dynamically interned Symbol into
+	  an ID, since rb_str_dynamic_intern returns a Symbol but not an
+	  ID.  [ruby-core:62226] [Bug #9787]
+
+Thu May  1 22:19:34 2014  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* file.c: Change AND condition to nested condition.
+
+Thu May  1 00:36:26 2014  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* file.c (FSTATFS): check availability of struct statfs and
+	  struct statvfs in addition to fstatfs(2) and fstatvfs(2).
+	  This fixes error in Solaris. [Bug #9788] [ruby-dev:48145]
+
+Wed Apr 30 19:46:23 2014  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c (gc_after_sweep): suppress unnecessary expanding heap.
+	  Tomb heap pages are freed pages here, so expanding heap is
+	  not required.
+
+Wed Apr 30 17:58:40 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (invoke_block_from_c): add VM_FRAME_FLAG_BMETHOD to record
+	  it is bmethod frame.
+
+	* vm.c (vm_exec): invoke RUBY_EVENT_RETURN event if rollbacked frame
+	  is VM_FRAME_FLAG_BMETHOD.
+	  [Bug #9759]
+
+	* test/ruby/test_settracefunc.rb: add a test for TracePoint/set_trace_func.
+
+	* vm_core.h: rename rb_thread_t::passed_me to
+	  rb_thread_t::passed_bmethod_me to clarify the usage.
+
+	* vm_insnhelper.c (vm_call_bmethod_body): use renamed member.
+
+Wed Apr 30 17:06:49 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (rb_id_attrset): pin down dynamic symbol only. it is
+	  possible that attrset ID can be registered as a static symbol
+	  after the corresponding attrget ID has been registered as a
+	  dynamic, and then the latter may be collected.
+	  [ruby-core:62226] [Bug #9787]
+
+Tue Apr 29 14:17:57 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/tmpdir.rb: Rescue LoadError on etc.so for miniruby.
+	  Revert r45707, r45711, r45717.
+
+Tue Apr 29 12:50:02 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/fileutils.rb: Don't need to define fu_get_gid and fu_get_gid in
+	  rescue LoadError on 'etc'.
+
+Tue Apr 29 10:21:38 2014  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* parse.y (symbols_i): like r45492, call rb_gc_resurrect().
+
+Tue Apr 29 04:29:05 2014  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* file.c (HAVE_STRUCT_STATFS_T_F_FSTYPENAME): Add new macro for
+	  statfs_t.
+	* file.c (HAVE_STRUCT_STATFS_T_F_TYPE): ditto.
+
+	* file.c (rb_io_statfs): check FSTATFS macro only instead of
+	  HAVE_FSTATFS and HAVE_FSTATVFS.
+
+	* file.c (statfs_type): use new macro.
+	* file.c (statfs_fstypename): ditto.
+	* file.c (statfs_inspect): ditto.
+
+Tue Apr 29 00:20:26 2014  Rajarshi Das  <rajarshid@cybage.com>
+
+	* bootstraptest/test_literal.rb: fix typo of "dynamic".  [ci skip]
+
+	* regexp.rdoc: fix typo of "organized".  [ci skip]
+
+	* lib/session.rb: fix typo of "recognized".  [ci skip]
+
+Mon Apr 28 21:40:27 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in (HAVE_STRUCT_STATFS_F_TYPE): check struct statfs.f_type
+	  to support OpenBSD.
+
+	* file.c (statfs_type): use above macro to switch.
+
+	* file.c (statfs_inspect): ditto.
+
+Mon Apr 28 18:06:08 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: check struct statvfs and struct statvfs.f_fstypename.
+
+	* configure.in: on NetBSD fstatfs is obsoleted.
+
+	* file.c: support NetBSD for File::Statfs.
+
+Mon Apr 28 17:42:42 2014  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c: This argument must be a pointer.
+
+Mon Apr 28 17:40:15 2014  Narihiro Nakamura  <authornari@gmail.com>
+
+	* gc.c: Fix typos. These are undefined variables.
+
+Sun Apr 27 19:39:42 2014  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_strptime.c (date__strptime_internal): do not
+	  overwrite century.
+
+Sat Apr 26 11:50:08 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/ruby/test_enum.rb (test_flat_map): Added test for flat_map.
+	  Contribute from @igaiga. [fix GH-598]
+
+Sat Apr 26 10:55:33 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (compile_array_): make copy a first hash not to modify
+	  the argument itself.  keyword splat should be non-destructive.
+	  [ruby-core:62161] [Bug #9776]
+
+Sat Apr 26 08:05:36 2014  Tanaka Akira  <akr@fsij.org>
+
+	* test/ruby/test_process.rb (test_rlimit_nofile): Don't limit
+	  RLIMIT_NOFILE too small.
+	  This fix sporadic "[ASYNC BUG] thread_timer: select" on GNU/Linux.
+
+Fri Apr 25 22:54:34 2014  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* lib/fileutils.rb (rmdir): rescue Errno::EEXIST in addition to
+	  ENOTEMPTY (and ENOENT), because SUSv3 describes that "If the
+	  directory is not an empty directory, rmdir() shall fail and set
+	  errno to [EEXIST] or [ENOTEMPTY]" and Solaris uses EEXIST.
+	  [Bug #9571] [ruby-dev:48017]
+
+Fri Apr 25 19:16:30 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/webrick/utils.rb: Don't rescue LoadError for 'etc' extension.
+
+Fri Apr 25 14:55:59 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (rb_cv_func___builtin_unreachable): try with an
+	  external variable not only by a warning, which might not be
+	  shown due to the optimization.  [ruby-core:61647] [Bug #9665]
+
+Fri Apr 25 13:11:49 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: NetBSD's ksh, used by configure, needs escapes.
+
+Fri Apr 25 12:51:08 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: correct pthread_setname_np's prototype on NetBSD.
+	  [Bug #9586]
+
+Thu Apr 24 23:17:25 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/fileutils.rb (fu_get_uid, fu_get_gid): Etc.getpwnam/getgrnam may
+	  returns nil.
+
+	* lib/webrick/utils.rb (su): ditto.
+
+Thu Apr 24 22:55:22 2014  Tanaka Akira  <akr@fsij.org>
+
+	* bootstraptest/test_io.rb: Add etc.so to $" before require 'tmpdir'.
+
+Thu Apr 24 21:09:55 2014  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* man/ruby.1: fix broken link.
+
+Thu Apr 24 20:53:02 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/tmpdir.rb: Don't need to rescue LoadError for etc.so.
+
+Thu Apr 24 17:39:53 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* file.c (statfs_inspect): suppress warnings.
+	  assume those values won't be larger than LONG_LONG_MAX.
+
+Thu Apr 24 11:53:28 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/openssl/ossl_asn1.c (ossl_asn1_initialize): SYMID on a value
+	  other than Symbol is an undefined behavior.  fix up r31699.
+	  [ruby-core:62142] [Bug #9771]
+
+Thu Apr 24 11:21:37 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (rb_sym2id, rb_sym2id_without_pindown): return 0 for
+	  non-symbol values, for the time being.
+
+Thu Apr 24 05:50:13 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* parse.y (dsym_node_gen): like r45492, call rb_gc_resurrect().
+
+Wed Apr 23 20:36:22 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/etc/extconf.rb: Build ext/etc unconditionally.
+
+Wed Apr 23 14:10:50 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* file.c (statfs_fsid): remove statfs.f_fsid because it doesn't return
+	  meaningful value portably. http://togetter.com/li/658517
+
+Wed Apr 23 11:03:41 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/stringio/stringio.c (strio_write): use rb_str_append to
+	  reuse coderange bits other than ASCII-8BIT, and keep
+	  taintedness.  [ruby-dev:48118] [Bug #9769]
+
+Wed Apr 23 00:43:00 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c, include/ruby/win32.h (ustatfs): implementation of
+	  statfs(2) clone. [EXPERIMENTAL]
+
+	* file.c (rb_io_statfs): use above function.
+
+	* configure.in, win32/Makefile.sub (struct statfs): available.
+
+Tue Apr 22 23:56:24 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* file.c (rb_io_stafs): use statfs(2) if fstatfs(2) is unavailable.
+
+	* configure.in (fstatfs): check it.
+
+Tue Apr 22 22:15:51 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* file.c (rb_io_statfs): need to define even if the system doesn't have
+	  fstatfs(2).
+
+	* test/ruby/test_file.rb (TestFile#test_statfs): skip if IO#stafs is not
+	  implemented.
+
+Tue Apr 22 19:32:48 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* file.c: newly added a class File::Statfs. (experimental)
+
+Tue Apr 22 08:22:33 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (objspace_malloc_increase): don't cause GC by malloc_increase
+	  when memop type is MEMOP_TYPE_REALLOC.
+
+	  GC at realloc is not well maintained.
+	  We need a time to make it safe.
+	  [ruby-dev:48117]
+
+Tue Apr 22 06:54:15 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (objspace_malloc_increase): run full mark if 0x04 bit is
+	  set in ruby_gc_stress.  [ruby-core:62103] [Feature #9761]
+
+	* gc.c (objspace_malloc_increase): run GC after realloc not only
+	  malloc and calloc by GC.stress.  [ruby-core:62103] [Feature #9761]
+
+Mon Apr 21 19:12:20 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (rb_str_coderange_scan_restartable): coderange is always
+	  ENC_CODERANGE_VALID if the string is ASCII-8BIT and already has a non
+	  ASCII character.
+
+Mon Apr 21 19:02:44 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (coderange_scan): remove useless condition `p < e` after
+	  search_nonascii.
+
+	* string.c (rb_str_coderange_scan_restartable): ditto.
+
+Mon Apr 21 18:55:21 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* ext/-test-/string/coderange.c: add Bug::String.new#coderange_scan
+	  to explicitly scan coderange.
+
+Mon Apr 21 18:19:35 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (coderange_scan): remove unused logic.
+
+	* string.c (rb_str_coderange_scan_restartable): ditto.
+
+Mon Apr 21 14:11:48 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/stringio/stringio.c (strio_putc): fix for non-ascii
+	  encoding, like as IO#putc.  [ruby-dev:48114] [Bug #9765]
+
+Sun Apr 20 12:57:15 2014  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* st.c (st_foreach_check): change start point of search at check
+	  from top to current. [ruby-dev:48047] [Bug #9646]
+
+Sun Apr 20 08:41:33 2014  Andrew DeMaria  <ademariad@gmail.com>
+
+	* lib/mkmf.rb (link_command, libpathflag, create_makefile): prefer
+	  user specified `$LIBPATH` than `$DEFLIBPATH`.  [ruby-core:62100]
+	  [ruby-trunk - Bug #9760]
+
+Sun Apr 20 06:01:18 2014  Eric Wong  <e@80x24.org>
+
+	* gc.c (rb_gc_writebarrier): drop special case for big hash/array
+	  [Bug #9518]
+
+Sat Apr 19 15:38:29 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (primary): flush cmdarg flags inside left-paren in a
+	  command argument, to allow parenthesed do-block as an argument
+	  without arguments parentheses.  [ruby-core:61950] [Bug #9726]
+
+Sat Apr 19 10:07:24 2014  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h (struct RBignum): Use size_t for len.
+
+	* include/ruby/intern.h (rb_big_new): Use size_t instead of long to
+	  specify the size of bignum.
+	  (rb_big_resize): Ditto.
+
+	* bignum.c: Follow above changes.
+
+	* rational.c: Follow above changes.
+
+	* marshal.c: Follow above changes.
+
+Sat Apr 19 00:32:07 2014  Tanaka Akira  <akr@fsij.org>
+
+	* numeric.c (rb_num2long): Returns a long.
+	  (rb_num2ulong): Returns a unsigned long.
+
+	* bignum.c (rb_big2long): Returns a long.
+	  (rb_big2ulong): Returns a unsigned long.
+
+	* include/ruby/intern.h: Follow above changes.
+
+	* include/ruby/ruby.h: Follow above changes.
+	  (rb_num2long_inline): No need to cast.
+	  (rb_num2ulong_inline): Ditto.
+
+Sat Apr 19 00:17:20 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (SHARABLE_SUBSTRING_P): predicate if substring can be
+	  shared with the original string.  true if just at the end of the
+	  original string, for the time being.  all substring will be able to
+	  be shared in the future.
+
+Fri Apr 18 21:48:24 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_new_frozen): consider the shared string at
+	  middle.
+
+	* string.c (rb_str_subseq, rb_str_substr, str_byte_substr): share
+	  middle of a string.
+
+Fri Apr 18 15:40:05 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c: use uintptr_t instead of VALUE because they are not ruby
+	  object.
+
+Fri Apr 18 14:51:42 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c: check str_strlen's argument, and add comment or
+	  use NULL if simply it uses str's enc.
+
+Fri Apr 18 14:32:40 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (str_strlen): use enc_strlen if the coderange is known.
+
+Fri Apr 18 14:21:21 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (enc_strlen): move UTF-8 optimization from str_strlen to
+	  enc_strlen.
+
+Fri Apr 18 08:50:18 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (rb_cv_getcwd_malloc): check if getcwd allocates
+	  buffer if NULL is given [ruby-core:62072] [Bug #9752]
+
+Thu Apr 17 16:28:10 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* prelude.rb: [DOC] Update Thread::exclusive docs by @stevenharman.
+
+Thu Apr 17 10:03:53 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/fileutils.rb (FileUtils#copy_entry): update rdoc about
+	  preserve option and permissions, following r31123.
+	  [ruby-core:62065] [Bug #9748]
+
+Wed Apr 16 23:47:36 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enum.c (dont_recycle_block_arg): fix condition to recycle block
+	  argument.  lambda with rest can get internal array directly.
+	  [ruby-core:62060] [Bug #9749]
+
+Wed Apr 16 09:51:16 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/openssl/ossl_pkey.c (ossl_pkey_verify): as EVP_VerifyFinal()
+	  finalizes only a copy of the digest context, the context must be
+	  cleaned up after initialization by EVP_MD_CTX_cleanup() or a
+	  memory leak will occur.  [ruby-core:62038] [Bug #9743]
+
+Tue Apr 15 19:36:42 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* include/ruby/win32.h (rb_w32_cmdvector): removed.
+
+	* win32/win32.c (rb_w32_sysinit): use WCHAR version of GetCommandLine()
+	  internally.
+
+	* win32/win32.c (w32_cmdvector): renamed from rb_w32_cmdvector.  use
+	  WCHAR* instead of char* internally.
+
+	these changes are expected to not changing the behavior yet.
+
+Tue Apr 15 19:26:05 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/extmk.rb: Re-generate extmk.mk and dummy makefiles only if
+	  really required.
+	  This fixes a problem to run multiple test-all concurrently as:
+	  make test-all & make test-all & make test-all & ...
+
+Tue Apr 15 12:49:53 2014  Sam Rawlins  <sam.rawlins@gmail.com>
+
+	* enum.c (enum_each_slice, enum_each_cons): make more efficient by
+	  allocating less and recycling block argument arrays if possible.
+	  [Fixes GH-596]
+
+Mon Apr 14 18:44:45 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (fill_lines): get base addrs in fill_lines to use it
+	  with dladdr_fbases introduced at r45563.
+	  it didn't get before if the executable is not pie.
+
+Mon Apr 14 18:05:48 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (main_exe_path): support FreeBSD.
+	  At least sh, csh, tcsh, bash, and zsh sets realpath of the main
+	  executable for dladdr, but gdb doesn't.
+
+Mon Apr 14 17:20:10 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (umethod_bind): use the ancestor iclass instead of new
+	  iclass to get rid of infinite recursion, if the defined module
+	  is already included.  [ruby-core:62014] [Bug #9721]
+
+Sun Apr 13 12:46:58 2014  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (SIZEOF_BDIGIT): Renamed from SIZEOF_BDIGITS.
+
+	* internal.h: Ditto.
+
+	* marshal.c: Ditto.
+
+	* rational.c: Ditto.
+
+Sun Apr 13 10:18:09 2014  Tanaka Akira  <akr@fsij.org>
+
+	* common.mk: Unused target, $(MKMAIN_CMD), removed.
+
+	* Makefile.in (MKMAIN_CMD): Unused macro removed.
+
+	* win32/Makefile.sub (MKMAIN_CMD): Ditto.
+
+Sat Apr 12 22:11:10 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (sym_to_proc), proc.c (rb_block_clear_env_self): clear
+	  caller's self which is useless, so that it can get collected.
+	  [Fixes GH-592]
+
+Sat Apr 12 09:26:48 2014  Eric Hodel  <drbrain@segment7.net>
+
+	* ext/openssl/ossl_ocsp.c:  [DOC] Document OpenSSL::OCSP.
+
+Fri Apr 11 18:52:38 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (ARY_SET): added.
+
+	  ARY_SET() is same functionality of RARRAY_ASET(), but
+	  it has an assertion (`ary' doesn't have shared array).
+
+Fri Apr 11 16:54:26 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c: make shared arrays WB-protected objects.
+
+	  Shared arrays were WB-unprotected object because
+	  sharing array can modify shared array's buffer
+	  if it occupied shared array.
+
+	  [sharing array (ary)] -> [shared array (shared)] -> <buff>
+	                |                                       A
+	                +---------------------------------------+
+	             write `buff' with WB(ary, &buff[i], obj)
+	             -> if `ary' and `shared' are old, then only `ary'
+	                will be remembered.
+	             -> traverse from `ary'. But `shared' is old, so
+	                that written `obj' is not marked.
+
+	  It cause WB miss so that shared arrays were WB-unprotected.
+	  (WB-unprotected objects are marked everytime if it is living)
+
+	  This patch insert WB() for `shared' if it is needed.
+
+Fri Apr 11 15:05:26 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (rb_method_call_with_block, umethod_bind): call with
+	  IClass including the module for a module instance method.
+	  [ruby-core:61936] [Bug #9721]
+
+	* vm_insnhelper.c (vm_search_super_method): allow bound
+	  UnboundMethod case.
+
+Fri Apr 11 12:02:30 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (rb_dump_backtrace_with_lines): set base address
+	  which is retrieved from dladdr to dladdr_fbases, to skip already
+	  parsed objects.
+
+Fri Apr 11 12:44:50 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (ary_reject): may be turned into a shared array during
+	  the given block.  [ruby-dev:48101] [Bug #9727]
+
+Thu Apr 10 23:41:21 2014  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/net/ftp.rb (Net::FTP#login): [DOC] The default password for
+	  anonymous login was changed to "anonymous@" in r25313.
+
+Thu Apr 10 19:22:58 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_array.rb: remove useless `assert'.
+
+Thu Apr 10 19:11:11 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* array.c (rb_ary_modify): remember shared array owner if a shared
+	  array owner is promoted and a shared array is not promoted.
+
+	  Now, shared array is WB-unprotected so that shared arrays are not
+	  promoted.  All objects referred from shared array should be marked
+	  correctly.
+
+	  [ruby-core:61919] [ruby-trunk - Bug #9718]
+
+	* test/ruby/test_array.rb: add a test for above.
+
+Thu Apr 10 18:57:12 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_verify_internal_consistency): move lines and enable
+	  allrefs_dump() on RGENGC_CHECK_MODE >= 4.
+
+Thu Apr 10 15:01:06 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (append_obj): clear allocated memory.
+
+	* addr2line.c (rb_dump_backtrace_with_lines): free `base_addrs'.
+
+Thu Apr 10 14:40:18 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rb_gc_writebarrier_unprotect_promoted): disable to dump debug
+	  message when RGENGC_CHECK_MODE == 0.
+
+Thu Apr 10 08:13:47 2014  Tanaka Akira  <akr@fsij.org>
+
+	* signal.c (check_stack_overflow): Don't use ucontext_t if ucontext.h
+	  is not available.
+	  Fixes build on Android (x86).
+
+Wed Apr  9 23:22:44 2014  Tanaka Akira  <akr@fsij.org>
+
+	* gc.c (mark_current_machine_context): Call SET_STACK_END.
+	  This reverts a hunk of r40703 by ko1.
+	  This fixes [ruby-dev:48098] [Bug #9717].
+
+Wed Apr  9 21:02:04 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (OBJ2UID1): Defined even if getpwnam_r is not usable.
+	  (OBJ2GID1): Defined even if getgrnam_r is not usable.
+	  This fixes compilation error on Android.
+
+Wed Apr  9 15:16:59 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* encoding.c (rb_enc_default_internal): fix rdoc.  `__FILE__` is
+	  in filesystem encoding but not `default_internal`.
+	  [ruby-core:61894] [Bug #9713]
+
+Wed Apr  9 14:43:00 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_gc.rb: more long timeout.
+	  This test failed under RGENGC_CHECK_MODE >= 2.
+
+Wed Apr  9 13:07:13 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: get rid of __builtin_setjmp/__builtin_longjmp on
+	  x64-mingw, which causes SEGV with callcc.
+	  [ruby-core:61887] [Bug #9710]
+
+Wed Apr  9 12:44:54 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (str_buf_cat): should round up the capacity by 4KiB,
+	  but not number of rooms.  [ruby-core:61886] [Bug #9709]
+
+Tue Apr  8 22:55:32 2014  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/mkmf.rb (MakeMakefile#dir_config): [DOC] Improve
+	  documentation.
+
+Tue Apr  8 22:31:44 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: rename `RGENGC_THREEGEN' to `RGENGC_AGE2_PROMOTION'.
+
+	* gc.c (rgengc_rememberset_mark): don't promote, but remain in
+	  remember set for infant objects.
+
+	* gc.c (RVALUE_PROMOTE_INFANT, RVALUE_PROMOTE_YOUNG): count numbers
+	  in these functions.
+
+Mon Apr  7 21:11:49 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/socket.c (sock_s_getnameinfo): Save errno for EAI_SYSTEM.
+	  Reported by Saravana kumar.  [ruby-core:61820] [Bug #9697]
+	  Fixed by Heesob Park.  [ruby-core:61868]
+
+Mon Apr  7 07:20:23 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/xmlrpc/client.rb (do_rpc): don't check body length.
+	  If HTTP content-encoding is used, the length may be different.
+	  [Bug #8182] [ruby-core:53811]
+
+Mon Apr  7 02:39:48 2014  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* lib/matrix.rb: Add Matrix#cofactor [fix GH-568]
+	  Add first_minor [fix GH-568]
+	  Handle empty diagonal matrix case [fix GH-576]
+	  Patches by gogotanaka
+
+Sun Apr  6 08:52:50 2014  Bugra Barin  <bugrabarin@hotmail.com>
+
+	* dln.c (dln_load): use wchar version to load a library in
+	  non-ascii path on Windows.  based on the patch by Bugra Barin
+	  <bugrabarin AT hotmail.com> in [ruby-core:61845].  [Bug #9699]
+
+Sat Apr  5 19:36:33 2014  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/date_core.c (d_lite_cmp): should compare with #<.
+
+Sat Apr  5 00:31:21 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/readline/extconf.rb (rl_hook_func_t): check pointer type.
+	  [ruby-dev:48089] [Bug #9702]
+
+Fri Apr  4 07:13:44 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (ac_cv_func___builtin_setjmp): should not skip
+	  flags restoration in RUBY_WERROR_FLAG by `break`.
+	  [ruby-dev:48086] [Bug #9698]
+
+Wed Apr  2 21:50:06 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (ac_cv_func___builtin_setjmp): __builtin_longjmp()
+	  in Apple LLVM 5.1 (LLVM 3.4svn) uses `void**`, not `jmp_buf`.
+	  [Bug #9692]
+
+Wed Apr  2 20:57:15 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c, gc.h (rb_objspace_each_objects_without_setup):
+	  Add a new (hidden) C-API to iterate objspace snapshot.
+
+	  This API is not safe to call any C-APIs in a given callback
+	  function. Be careful to use this C-API.
+
+Wed Apr  2 17:43:17 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (ac_cv_func___builtin_setjmp): gcc 4.9 disallows a
+	  variable as the second argument of __builtin_longjmp().
+	  [ruby-core:61800] [Bug #9692]
+
+Wed Apr  2 15:12:18 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* common.mk: Use redmine-2.x url for DeveloperHowto wiki.
+	  [ruby-core:60657] [Bug #9511]
+
+Wed Apr  2 11:46:29 2014  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* ext/pathname/lib/pathname.rb (Pathname#join): Fix error with
+	  empty args. Reported by ko1 via IRC.
+
+	* test/pathname/test_pathname.rb (TestPathname#test_join): Add the
+	  test for above case.
+
+Tue Apr  1 11:39:57 2014  James Edward Gray II  <james@graysoftinc.com>
+
+	* lib/csv.rb: Symbol HeaderConverter: strip leading/trailing space.
+	  Reported by Skye Shaw
+	  [Fixes GH-575]
+
+Tue Apr  1 11:34:04 2014  James Edward Gray II  <james@graysoftinc.com>
+
+	* lib/csv.rb: Don't attempt to convert nil headers.
+	  Reported by Skye Shaw
+
+Tue Apr  1 17:29:35 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/config_files.rb (ConfigFiles.download): show failed URI.
+	  [ruby-core:61792] [Bug #9690]
+
+Tue Apr  1 12:06:49 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (rb_dump_backtrace_with_lines): don't depend hard coded
+	  symbol '_start'.
+
+	* addr2line.c (fill_lines): instead of above, get a dynamic symbol
+	  in the main executable and use it to know the base address.
+
+	* addr2line.c (follow_debuglink0): use obj_info_t instead of
+	  line_info_t to handle object related data.
+
+	* addr2line.c (main_exe_path): defined for Linux.
+
+Tue Apr  1 08:58:39 2014  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* parse.y (rb_str_dynamic_intern): set mark bit if dynamic symbol
+	  is before sweeping.
+
+Tue Apr  1 07:37:00 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (fill_lines): use dynsym, which is used for dynamic
+	  linking and always exists, if there's no symtab.
+
+Tue Apr  1 07:27:15 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vm_dump.c (rb_print_backtrace): current implementation
+	  uses dladdr to get the path of objects.
+
+Mon Mar 31 23:57:45 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/readline/extconf.rb: fix typo, `$defs` not `$DEFS`.
+	  [ruby-core:61756] [Bug #9578]
+
+Mon Mar 31 17:23:50 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/memory_status.rb: require envutil before accessing EnvUtil
+	  module.  reported by ko1 via twitter.
+
+Mon Mar 31 10:28:01 2014  Eric Wong  <e@80x24.org>
+
+	* st.c (st_init_table_with_size): update comment
+	  [Feature #9425]
+
+Sun Mar 30 23:39:26 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_accept, open_ifs_socket, socketpair_internal):
+	  reset inherit flag of socket to avoid unintentional inheritance of
+	  socket.  note that the return value of SetHandleInformation() is not
+	  verified intentionally because old Windows may return an error.
+	  [Bug #9688] [ruby-core:61754]
+
+Sat Mar 29 13:04:22 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_before_sweep): cap `malloc_limit' to
+	  gc_params.malloc_limit_max.  It can grow and grow with such case:
+	    `loop{"a" * (1024 ** 2)}'
+	  [Bug #9687]
+
+	  This issue is pointed by Tim Robertson.
+	  http://www.omniref.com/blog/blog/2014/03/27/ruby-garbage-collection-still-not-ready-for-production/
+
+Fri Mar 28 19:32:13 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* struct.c (not_a_member): extract name error and use same error
+	  messages.  based on the patch by Marcus Stollsteimer <sto.mar AT
+	  web.de> at [ruby-core:61721].  [Bug #9684]
+
+Fri Mar 28 09:21:54 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* ext/psych/psych.gemspec: update gemspec for psych-2.0.5
+
+Fri Mar 28 09:11:06 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* ext/psych/lib/psych.rb: Merge psych-2.0.5. bump version to
+	  libyaml-0.1.6 for CVE-2014-2525.
+	* ext/psych/yaml/config.h: ditto.
+	* ext/psych/yaml/scanner.c: ditto.
+	* ext/psych/yaml/yaml_private.h: ditto.
+
+Thu Mar 27 18:58:10 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* re.c (match_regexp): set regexp for MatchData from string.
+
+	* re.c (rb_backref_set_string): create MatchData from string and
+	  set backref.
+
+	* string.c (rb_pat_search, rb_str_sub, rb_str_sub_bang, str_gsub),
+	  (scan_once, rb_str_scan, rb_str_partition): use rb_str_index
+	  instead of rb_reg_search() when pattern is a String.  based on
+	  the patch by Sam Rawlins <sam.rawlins@gmail.com> [Fixes GH-579]
+
+Thu Mar 27 11:58:55 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (fill_lines): check shdr[i].sh_type because even if
+	  .symtab section exists, the section's type can be SHT_NOBITS and
+	  actual data doesn't exist in the file.
+	  revert r45441.
+
+Wed Mar 26 14:57:35 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* parse.y: inline must be static (for mswin).
+	  fixed build error introduced at r45426.
+
+Wed Mar 26 14:33:00 2014  Narihiro Nakamura  <authornari@gmail.com>
+
+	* internal.h (USE_SYMBOL_GC): enable Symbol GC by default (USE_SYMBOL_GC == 1).
+
+Tue Mar 25 22:57:11 2014  Narihiro Nakamura  <authornari@gmail.com>
+
+	* parse.y: support Symbol GC. [ruby-trunk Feature #9634]
+	  See this ticket about Symbol GC.
+
+	* include/ruby/ruby.h:
+	  Declare few functions.
+	  * rb_sym2id: almost same as old SYM2ID but support dynamic symbols.
+	  * rb_id2sym: almost same as old ID2SYM but support dynamic symbols.
+	  * rb_sym2str: almost same as `rb_id2str(SYM2ID(sym))` but not
+	    pin down a dynamic symbol.
+	  Declare a new struct.
+	  * struct RSymbol: represents a dynamic symbol as object in
+	    Ruby's heaps.
+	  Add few macros.
+	  * STATIC_SYM_P: check a static symbol.
+	  * DYNAMIC_SYM_P: check a dynamic symbol.
+	  * RSYMBOL: cast to RSymbol
+
+	* gc.c: declare RSymbol. support T_SYMBOL.
+
+	* internal.h: Declare few functions.
+	  * rb_gc_free_dsymbol: free up a dynamic symbol. GC call this
+	    function at a sweep phase.
+	  * rb_str_dynamic_intern: convert a string to a dynamic symbol.
+	  * rb_check_id_without_pindown: not pinning function.
+	  * rb_sym2id_without_pindown: ditto.
+	  * rb_check_id_cstr_without_pindown: ditto.
+
+	* string.c (Init_String): String#intern and String#to_sym use
+	  rb_str_dynamic_intern.
+
+	* template/id.h.tmpl: use LSB of ID as a flag for determining a
+	  static symbol, so we shift left other ruby_id_types.
+
+	* string.c: use rb_sym2str instead `rb_id2str(SYM2ID(sym))` to
+	  avoid pinning.
+
+	* load.c: use xx_without_pindown function at creating temporary ID
+	  to avoid pinning.
+
+	* object.c: ditto.
+
+	* sprintf.c: ditto.
+
+	* struct.c: ditto.
+
+	* thread.c: ditto.
+
+	* variable.c: ditto.
+
+	* vm_method.c: ditto.
+
+Wed Mar 26 13:25:54 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (fill_lines): loop reverse order not to overwrite
+	  the basis of base addresses comparison.
+
+	* addr2line.c: use uintptr_t instead of intptr_t for pointers.
+
+	* addr2line.c (rb_dump_backtrace_with_lines): don't use syms.
+
+	* vm_dump.c (rb_print_backtrace): ditto.
+
+	* addr2line.h: ditto.
+
+Wed Mar 26 11:20:50 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* marshal.c (w_object): internal objects are not dumpable.
+	  [ruby-core:61677] [Bug #9674]
+
+	* ext/thread/thread.c (undumpable): ConditionVariable and Queue
+	  are not dumpable.  [ruby-core:61677] [Bug #9674]
+
+Wed Mar 26 10:36:39 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (follow_debuglink): show message if it closes opened
+	  (and maybe used) elf binary.
+
+Wed Mar 26 10:34:25 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (fill_line): pass and use offset instead of
+	  curobj_baseaddr.
+
+Wed Mar 26 09:07:48 2014  Yutaka Kanemoto  <kanemoto@ruby-lang.org>
+
+	* configure.in: add --disable-pie. [Feature #9673]
+
+Wed Mar 26 08:47:04 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (fill_lines): don't run fill_lines multiple times.
+
+Wed Mar 26 08:45:00 2014  Sam Rawlins  <sam.rawlins@gmail.com>
+
+	* internal.h: add prototype for rb_reg_search0
+
+	* re.c: rename rb_reg_search to rb_reg_search0, add set_backref_str
+	  argument to allow callers to indicate that they don't require the
+	  backref string to be allocated.
+
+	* string.c: don't allocate backref str if replacement string is provided
+
+	[GH-578] [Bug #9676] [ruby-core:61682]
+
+Wed Mar 26 08:29:43 2014  mo khan  <mo@mokhan.ca>
+
+	* lib/rubygems.rb: fix spelling of Jim Weirich.  [Fixes GH-577]
+
+Wed Mar 26 01:55:45 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (rb_dump_backtrace_with_lines): a function to get must
+	  be a function in the main executable, whose absolute path is not
+	  available by dladdr, and ruby get it by /proc/self/exe on Linux.
+
+Wed Mar 26 01:34:50 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (fill_lines): skip if path is NULL.
+
+Tue Mar 25 23:57:17 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_yylex): only a newline after label should be
+	  significant.  [ruby-core:61658] [Bug #9669]
+
+Tue Mar 25 23:32:25 2014  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* ext/pathname/lib/pathname.rb (Pathname#join): remove unnecessary
+	  unshift.
+
+	* test/pathname/test_pathname.rb (TestPathname#test_join): add tests.
+
+Tue Mar 25 16:47:36 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (lex_state_e, parser_params, f_arglist, parser_yylex):
+	  separate EXPR_LABELARG from EXPR_BEG and let newline significant,
+	  so that required keyword argument can place at the end of
+	  argument list without parentheses.  [ruby-core:61658] [Bug #9669]
+
+Mon Mar 24 22:19:56 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (ripper_initialize): filename can not be modified.
+
+Mon Mar 24 15:19:47 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (rb_dump_backtrace_with_lines): fetch path of the
+	  executable from /proc/self/exe on Linux.
+
+Mon Mar 24 14:14:37 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* gc.c: Fix up default GC params by @csfrancis [fix GH-556]
+
+Mon Mar 24 13:13:36 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (parse_debug_line_cu): explicitly specify signed char
+	  because DWARF's line_Base is signed char and char maybe unsigned.
+	  patched by Rei Odaira. [ruby-dev:48068] [Bug #9654]
+
+Sun Mar 23 11:03:50 2014  Kohei Suzuki  <eagletmt@gmail.com>
+
+	* vm_method.c (rb_method_entry_get_without_cache): me->klass is 0
+	  for a method aliased in a module.  [ruby-core:61636] [Bug #9663]
+
+Sun Mar 23 08:12:27 2014  Eric Wong  <e@80x24.org>
+
+	* st.c (hash_pos): use bitwise AND to avoid slow modulo op
+	  (new_size): power-of-two sizes for hash_pos change
+	  (st_numhash): adjust for common keys due to lack of prime modulo
+	  [Feature #9425]
+	* hash.c (rb_any_hash): right shift for symbols
+	* benchmark/bm_hash_aref_miss.rb: added to show improvement
+	* benchmark/bm_hash_aref_sym_long.rb: ditto
+	* benchmark/bm_hash_aref_str.rb: ditto
+	* benchmark/bm_hash_aref_sym.rb: ditto
+	* benchmark/bm_hash_ident_num.rb: added to prevent regression
+	* benchmark/bm_hash_ident_obj.rb: ditto
+	* benchmark/bm_hash_ident_str.rb: ditto
+	* benchmark/bm_hash_ident_sym.rb: ditto
+
+Sat Mar 22 22:56:45 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (fill_lines): compare the file names of object in which
+	  symbols exist. [Bug #9654] [ruby-dev:48058]
+
+Sat Mar 22 06:46:16 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/cgi/util.rb (escape_html, unescape_html): make synonyms
+	  aliases instead of wrapper methods.
+
+	* lib/cgi/util.rb (escape_element, unescape_element): ditto.
+	  [Fixes GH-573]
+
+Fri Mar 21 21:57:34 2014  Akinori MUSHA  <knu@iDaemons.org>
+
+	* configure.in: Fix a build problem with clang and --with-opt-dir.
+	  If ruby is configured with --with-opt-dir=dir when using clang
+	  as compiler, a warning `clang: warning: argument unused during
+	  compilation: '-I dir'` is emitted almost every time clang
+	  compiles a file.  Unfortunately, RUBY_CHECK_PRINTF_PREFIX takes
+	  any output from the compiler as fatal error, and the check thus
+	  fails due to the warning.  This is an attempt to fix the problem
+	  by adding a flag -Qunused-arguments to CFLAGS locally in the
+	  function to suppress the warning. [ruby-dev:48062] [Bug #9658]
+	  [Fixes GH-571] https://github.com/ruby/ruby/pull/571
+
+Fri Mar 21 16:31:56 2014  Zachary Scott  <e@zzak.io>
+
+	* gc.c: [DOC] Fix call-seq for GC.start by @jasonrclark [Fixes GH-572]
+	  https://github.com/ruby/ruby/pull/572
+
+Thu Mar 20 11:37:28 2014  James Edward Gray II  <james@graysoftinc.com>
+
+	* lib/csv.rb: Fixed a broken regular expression that was causing
+	  CSV to miss escaping some special meaning characters when used
+	  in parsing.
+	  Reported by David Unric
+	  [ruby-core:54986] [Bug #8405]
+
+Thu Mar 20 16:53:07 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (objspace_malloc_increase): should not invoke
+	  garbage_collect_with_gvl() here on non-ruby threads.
+
+	  Should just ignore the malloc_increase.
+
+	  This issue is pointed by Eric Wong [ruby-core:61519].
+
+Thu Mar 20 13:05:16 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* struct.c (rb_struct_alloc): use RARRAY_CONST_PTR() instead of
+	  RARRAY_PTR().
+
+Thu Mar 20 12:59:39 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/intern.h (rb_obj_call_init, rb_class_new_instance):
+	  constify a parameter (VALUE *).
+	  I believe this incompatibility doesn't break any code.
+	  However, if you have trouble, please tell us.
+
+	* eval.c, object.c: ditto.
+
+Thu Mar 20 12:31:26 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_method.c (rb_method_entry_get_without_cache): get rid of
+	  infinite recursion at aliases in a subclass and a superclass.
+	  return actually defined class for other than singleton class.
+	  [ruby-core:60431] [Bug #9475]
+
+Wed Mar 19 17:13:06 2014  Eric Wong  <e@80x24.org>
+
+	* time.c (time_mload): freeze and preserve marshal-loaded time zone
+	* test/ruby/test_time.rb: add test for GC on loaded object
+	  [Bug #9652]
+
+Tue Mar 18 23:20:12 2014  Shota Fukumori  <her@sorah.jp>
+
+	* vm_eval.c (eval_string_with_cref): Unify to use NIL_P.
+
+Tue Mar 18 22:03:41 2014  Shota Fukumori  <her@sorah.jp>
+
+	* vm_eval.c (eval_string_with_cref): Use file path even if scope is
+	  given. Related to [ruby-core:56099] [Bug #8662] and r42103.
+
+Mon Mar 17 13:17:47 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* enumerator.c (enumerator_block_call): use RARRAY_CONST_PTR()
+	  instead of RARRAY_PTR().
+
+	* io.c (rb_io_s_popen): ditto.
+
+	* numeric.c (num_step_size): ditto.
+
+	* vm_eval.c (rb_apply): ditto.
+
+	* vm_eval.c (rb_eval_cmd): ditto.
+
+Mon Mar 17 10:11:59 2014  Eric Wong  <e@80x24.org>
+
+	* variable.c (rb_const_set): delete existing entry on redefinition
+	  [Bug #9645]
+	* test/ruby/test_const.rb (test_redefinition): test for leak
+
+Sun Mar 16 21:33:01 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/time.rb: [DOC] Fix timezone in example of Time.parse [Bug #9521]
+	  Based on patch by @stomar
+
+Sun Mar 16 13:21:40 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (DLDFLAGS): insert a space between option and its
+	  argument for non-GCC compilers.  [ruby-core:61429] [Bug #9624]
+
+Sun Mar 16 08:05:06 2014  Eric Wong  <e@80x24.org>
+
+	* gc.c (objspace_xcalloc): fix GC accounting
+
+Sun Mar 16 06:33:35 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (fill_lines): return address is just after calling
+	  address. Therefore noreturn function with tail call's return
+	  address may be in another function.
+
+Sun Mar 16 05:51:55 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/gserver.rb: [DOC] Fixed typo in example by @stomar [Bug #9543]
+
+Sat Mar 15 18:54:03 2014  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* ext/.document: remove refinement from documentable directories.
+
+Sat Mar 15 11:02:58 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (DLDFLAGS): check for each options to control
+	  symbol resolution.  [ruby-core:61429] [Bug #9624]
+
+Sat Mar 15 07:02:35 2014  Eric Wong  <e@80x24.org>
+
+	* st.c (st_update): remove unnecessary assignment
+
+Fri Mar 14 14:58:38 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* addr2line.c (fill_lines): fetch symbol names from ELF binary's
+	  symbol table if it is built with cc -g and not stripped.
+	  Now ruby can show static symbols on Linux though glibc's
+	  backtrace_symbols(3) don't show them.
+
+	* addr2line.c (rb_dump_backtrace_with_lines): use dladdr(3) to
+	  detect what object file declares the symbol because
+	  dl_iterate_phdr can't detect the main executable file
+	  and codes on the stack.
+	  NOTE: signal trampolines sometimes on the user stack. (FreeBSD)
+
+	* addr2line.c (rb_dump_backtrace_with_lines): stop showing
+	  backtrace if the function's name is main.
+	  NOTE: FreeBSD's backtrace (libexecinfo) shows _start and
+	  an additional address. Why it doesn't remove them on dladdr phase
+	  is, dladdr may fail to detect the main function but detect
+	  as _start function. Therefore it must be after scanning
+	  the symbol table and getting correct name.
+
+
+Fri Mar 14 12:07:46 2014  Zachary Scott  <e@zzak.io>
+
+	* doc/syntax/literals.rdoc: [DOC] Single quote strings allows escape
+	  of backslash as well, patch by @idupree [Fixes GH-553]
+	  https://github.com/ruby/ruby/pull/553
+
+Fri Mar 14 01:18:24 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm.c (invoke_block_from_c): add splattable argument.
+
+	* vm.c (vm_invoke_proc): disallow to splat when directly invoked.
+
+	* vm_insnhelper.c (vm_callee_setup_arg_complex, vm_callee_setup_arg):
+	  relax arity check of yielded lambda.  [ruby-core:61340] [Bug #9605]
+
+	* test/ruby/test_yield.rb (TestRubyYieldGen#emu_bind_params): no
+	  longer raise ArgumentError when splatting to lambda.
+
+Thu Mar 13 23:51:02 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/-test-/win32/dln/libdlntest.c (dlntest_ordinal): no need to
+	  specify export in the source file because .def file do it.
+	  get rid of warning on linking.
+
+Wed Mar 12 11:19:03 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_callee_setup_arg): disable fastpath if splat
+	  argument, since argc may differ for each calls.
+	  [ruby-core:61422] [Bug #9622]
+
+	* vm_insnhelper.c (vm_callee_setup_arg): turn a macro into an
+	  inline function.
+
+Wed Mar 12 07:26:05 2014  Eric Wong  <e@80x24.org>
+
+	* insns.def (opt_regexpmatch2): respect redefined match op
+	  Thanks to Sam Rawlins for the fix.
+	* test/ruby/test_string.rb: test based on Tsuyoshi Sawada's report
+	  [Bug #9581]
+
+Tue Mar 11 22:31:25 2014  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* ext/.document: add objspace/objspace_dump.c to document file.
+
+Tue Mar 11 22:22:38 2014  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* test/objspace/test_objspace.rb (TestObjSpace#test_dump_uninitialized_file):
+	  remove dependency on json library.
+
+Tue Mar 11 10:55:10 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* README.EXT{,.ja} (Appendix B): update contents of `ruby_options`
+	  and replace `ruby_run` with `ruby_run_node`.  based on the patch
+	  by Kaneko Yuichiro at [ruby-dev:48030] [Bug #9619].
+
+Tue Mar 11 06:54:00 2014  Scott Francis  <scott.francis@shopify.com>
+
+	* ext/objspace/objspace_dump.c: Check fptr before trying to dump RFILE
+	  object fd. [GH-562]
+
+	* test/objspace/test_objspace.rb: add test
+
+Tue Mar 11 02:04:36 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vm_dump.c (rb_vm_bugreport): show vm maps on FreeBSD.
+
+	* vm_dump.c (procstat_vm): copied from FreeBSD.
+	  http://svnweb.freebsd.org/base/head/usr.bin/procstat/procstat_vm.c?revision=261780
+
+Mon Mar 10 12:14:26 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: always check dladdr(1).
+
+	* addr2line.c (fill_lines): show the line number in C backtrace if
+	  ruby is built without --enable-shared (PIE) on Linux.
+	  patch is originally by Shinichiro Hamaji
+	  https://twitter.com/shinh/status/441957774264504321
+	  NOTE: ld doesn't insert __executable_start for PIE.
+	  dladdr(3)'s argument must be a function pointer.
+
+Mon Mar 10 10:51:17 2014  ksss  <co000ri@gmail.com>
+
+	* test/ruby/test_enumerator.rb (test_iterators): fix test for hash
+	  iterators.  [Fixes GH-558]
+
+Sun Mar  9 14:14:49 2014  Eric Wong  <e@80x24.org>
+
+	* class.c (rb_class_subclass_add): use xmalloc
+	* class.c (rb_module_add_to_subclasses_list): ditto
+	* class.c (rb_class_remove_from_super_subclasses): use xfree
+	* class.c (rb_class_remove_from_module_subclasses): ditto
+	  [Bug #9616]
+
+Sun Mar  9 13:51:16 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/fiddle/function.c (function_call): fix memory leak when an
+	  exception occurs at argument conversion or the function call.
+
+Sun Mar  9 06:42:40 2014  Eric Wong  <e@80x24.org>
+
+	* variable.c (struct global_variable): shrink by 8 bytes on 64-bit
+
+Sat Mar  8 17:42:51 2014  Eric Wong  <e@80x24.org>
+
+	* vm.c (add_opt_method): cleanup to use rb_method_entry_at
+
+Sat Mar  8 13:46:40 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/dl/cptr.c (dlptr_free), ext/dl/handle.c (dlhandle_free),
+	  ext/fiddle/handle.c (fiddle_handle_free),
+	  ext/fiddle/pointer.c (fiddle_ptr_free): fix memory leak.
+	  based on the patch Heesob Park at [ruby-dev:48021] [Bug #9599].
+
+Sat Mar  8 13:30:39 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (obj2uid, obj2gid): now getpwnam_r() and getgrnam_r()
+	  may need larger buffers than sysconf values, so retry with
+	  expanding the buffer when ERANGE is returned.
+	  [ruby-core:61325] [Bug #9600]
+
+Fri Mar  7 19:29:13 2014  Eric Wong  <e@80x24.org>
+
+	* vm_eval.c (vm_call0_body): use RARRAY_CONST_PTR
+	  (check_funcall_exec): ditto
+	  [ruby-core:61360]
+
+Fri Mar  7 19:14:11 2014  Eric Wong  <e@80x24.org>
+
+	* vm_eval.c (vm_call0_body): fix RB_GC_GUARD location
+	  (check_funcall_exec): ditto
+	  [Bug #9609]
+
+Fri Mar  7 14:48:17 2014  Narihiro Nakamura  <authornari@gmail.com>
+
+	* parse.y (ENC_SINGLE): Unused macro removed.
+
+Fri Mar  7 12:06:19 2014  Martin Bosslet  <Martin.Bosslet@gmail.com>
+
+	* test/openssl/test_ssl.rb: Reuse TLS default options from
+	  OpenSSL::SSL::SSLContext::DEFAULT_PARAMS.
+
+Thu Mar  6 15:15:24 2014  Zachary Scott  <e@zzak.io>
+
+	* doc/syntax/assignment.rdoc: [DOC] Fix assignment directions
+	  By @idupree [Fixes GH-555] https://github.com/ruby/ruby/pull/555
+
+Thu Mar  6 15:07:18 2014  Zachary Scott  <e@zzak.io>
+
+	* doc/syntax/methods.rdoc: [DOC] Fix example for block arguments
+	  By @idupree [Fixes GH-554] https://github.com/ruby/ruby/pull/554
+
+Thu Mar  6 10:33:31 2014  Martin Bosslet  <Martin.Bosslet@gmail.com>
+
+	* lib/openssl/ssl.rb: Explicitly whitelist the default
+	  SSL/TLS ciphers. Forbid SSLv2 and SSLv3, disable
+	  compression by default.
+	  Reported by Jeff Hodges.
+	  [ruby-core:59829] [Bug #9424]
+
+Wed Mar  5 15:56:18 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (f_arg_asgn): define optional arguments as argument
+	  variables in the rhs default expressions.
+	  [ruby-core:61299] [Bug #9593]
+
+Wed Mar  5 11:58:30 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/openssl/ossl.c (ossl_make_error): check NULL for unknown
+	  error reasons with old OpenSSL, and insert a colon iff formatted
+	  message is not empty.
+
+Wed Mar  5 00:42:00 2014  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* ext/pathname/lib/pathname.rb (Pathname#find): add "ignore_error"
+	  keyword argument defaulted to true as well as Find#find.
+
+Tue Mar  4 23:00:18 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_eval.rb (TestEval#make_test_binding): renamed.
+	  it's not test method.
+
+Tue Mar  4 20:50:59 2014  Masaya Tarui  <tarui@ruby-lang.org>
+
+	* st.c (st_foreach): fix type of hash. not st_data_t but st_index_t.
+
+Tue Mar  4 19:41:40 2014  Tanaka Akira  <akr@fsij.org>
+
+	* Makefile.in: ".DEFAULT" target removed because it is not for
+	  specifying default target.
+
+Tue Mar  4 00:25:35 2014  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* lib/find.rb (Find#find): should pass ignore_error option to enumerators.
+
+Mon Mar  3 13:27:35 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/test_find.rb (TestFind#test_unsearchable_dir): ruby cannot make
+	  directory unreachable by owner on Windows.
+
+Mon Mar  3 08:10:04 2014  Eric Wong  <e@80x24.org>
+
+	* vm_method.c (rb_method_entry_get_without_cache): disable GMC
+	  writing if GMC is disabled.
+	  [ruby-core:61218]
+
+Mon Mar  3 07:47:17 2014  Eric Wong  <e@80x24.org>
+
+	* README.EXT: wrap GetDBM with do/while(0)
+	* README.EXT.ja: ditto
+	* ext/dbm/dbm.c: ditto, likewise for GetDBM2
+	* ext/gdbm/gdbm.c: ditto
+	* ext/sdbm/init.c: ditto
+	  [ruby-core:61217]
+
+Mon Mar  3 07:17:31 2014  Zachary Scott  <e@zzak.io>
+
+	* NEWS: [DOC] Update doc regarding filesystem load when flushing IO
+
+Mon Mar  3 04:37:50 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* io.c (rb_io_fsync): need to fsync even if on Windows.  fixed mistake
+	  of r45254 and r45256.
+
+Mon Mar  3 04:21:34 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/win32ole: get rid of warnings (unused variable).
+
+Mon Mar  3 02:53:53 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* io.c (rb_io_flush_raw): [EXPERIMENTAL] remove force syncing for Win32
+	  to speed up IO.  this may break some tests, and they'll be fixed
+	  later.
+	  [ruby-core:58570] [Bug #9153]
+
+Mon Mar  3 00:17:43 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/ruby/test_backtrace.rb: get rid of warnings.  unused variable,
+	  shadowing.
+
+Sun Mar  2 11:15:10 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/find.rb (Find#find): add "ignore_error" keyword argument
+	  defaulted to true.  [ruby-core:51025] [Feature #7596]
+
+Sun Mar  2 11:13:30 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/readline/extconf.rb (rl_hook_func_t): define as Function for
+	  very old readline versions.  [ruby-core:61209] [Bug #9578]
+
+Sun Mar  2 10:47:58 2014  Eric Wong  <e@80x24.org>
+
+	* load.c (ruby_init_ext): make idempotent to suppress warnings
+
+Sat Mar  1 19:51:42 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/open3.rb (Open3.capture3): Ignore Errno::EPIPE for writing
+	  stdin_data.
+	  (Open3.capture2): Ditto.
+	  (Open3.capture2e): Ditto.
+
+Sat Mar  1 19:06:47 2014  Eric Wong  <e@80x24.org>
+
+	* gc.c (ruby_gc_set_params): simplify condition
+
+Sat Mar  1 16:18:40 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/readline/readline.c (Init_readline): Use rl_hook_func_t instead
+	  of Function to support readline-6.3.  (rl_hook_func_t is available
+	  since readline-4.2.)
+	  Reported by Dmitry Medvinsky.  [ruby-core:61141] [Bug #9578]
+
+Sat Mar  1 16:05:58 2014  Eric Wong  <e@80x24.org>
+
+	* gc.c (ruby_gc_set_params): fix building without RGenGC
+
+Sat Mar  1 11:08:00 2014  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: support dumping Encoding
+	  objects.
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: support loading Encoding
+	  objects.
+
+	* test/psych/test_encoding.rb: add test
+
+	* ext/psych/lib/psych.rb: add version
+
+Sat Mar  1 10:52:34 2014  Zachary Scott  <e@zzak.io>
+
+	* README.EXT.ja: [DOC] Fix typo "macro macro" @utenmiki [Fixes GH-551]
+	  https://github.com/ruby/ruby/pull/551
+
+Fri Feb 28 11:16:55 2014  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* numeric.c: Fix Numeric#step with 0 unit [Bug #9575]
+
+Thu Feb 27 17:59:01 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/optparse.rb: [DOC] Add example of generating help with optparse.
+	  Patch by @joelmccracken documenting-ruby/ruby#19
+	  https://github.com/documenting-ruby/ruby/pull/19
+
+Thu Feb 27 12:10:09 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* numeric.c (ruby_num_interval_step_size): check signs and get rid
+	  of implementation dependent behavior of negative division.
+	  [ruby-core:61106] [Bug #9570]
+
+Thu Feb 27 03:55:45 2014  Zachary Scott  <e@zzak.io>
+
+	* thread.c: [DOC] Typo in comment for _FORTIFY_SOURCE [Fixes GH-548]
+	  Patch by @qnet-herwin https://github.com/ruby/ruby/pull/548
+
+Wed Feb 26 18:43:43 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (heap_pages_free_unused_pages): check tomb page availability
+	  at first.
+	  And return immediately if we don't touch sorted list any more.
+
+Wed Feb 26 14:10:44 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval.c (setup_exception): preserve exception class name encoding
+	  in debug mode messages.
+
+	* eval.c (setup_exception): preserve errinfo across calling #to_s
+	  method on the exception.  [ruby-core:61091] [Bug #9568]
+
+Wed Feb 26 01:29:27 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* string.c (sym_find): Add Symbol.find(str), which returns whether given
+	  string is defined as symbol or not. [Feature #7854]
+
+Tue Feb 25 22:52:02 2014  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* ext/dl/dl.c (rb_dl_realloc): use NUM2SIZET instead of NUM2INT.
+
+	* ext/fiddle/fiddle.c (rb_fiddle_realloc): ditto.
+
+Tue Feb 25 22:49:30 2014  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* ext/dl/dl.c (rb_dl_malloc): use NUM2SIZET instead of NUM2INT.
+	  Coverity Scan found this bug.
+
+	* ext/fiddle/fiddle.c (rb_fiddle_malloc): ditto.
+
+Tue Feb 25 12:06:13 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* win32/Makefile.sub: define PACKED_STRUCT.
+
+Mon Feb 24 21:41:56 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* README.md, README.ja.md: removed (wrong) mode setting for emacs.
+
+Mon Feb 24 20:05:41 2014  Eric Wong  <e@80x24.org>
+
+	* configure.in: define PACKED_STRUCT_UNALIGNED for x86*
+	* timev.h (struct vtm): use PACKED_STRUCT_UNALIGNED
+	* time.c (struct time_object): ditto
+	  [Bug #9558] non-x86 cannot safely access unaligned addresses
+
+Mon Feb 24 18:10:02 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/fiddle/test_function.rb: remove unused variables.
+	* test/fileutils/test_fileutils.rb: ditto.
+	* test/io/console/test_io_console.rb: ditto.
+
+Mon Feb 24 12:37:51 2014  Eric Wong  <e@80x24.org>
+
+	* configure.in: use -Wno-packed-bitfield-compat for GCC 4.4+
+	  use __attribute__((packed)) if available
+	* timev.h: shrink and pack struct vtm
+	* time.c: pack struct time_object and adjust/introduce helpers
+	  [ruby-core:60794]
+
+Sun Feb 23 17:55:50 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/xmltokens.rb: Add missing non ASCII valid characters
+	  to element name characters. Now, REXML name tokens exactly
+	  match "[5] Name" in the XML spec and "[4] NCName" in the
+	  Namespaces in XML spec. See comment about the details.
+	  [Bug #9539]  [ruby-core:60901]
+	  Reported by Mario Barcala. Thanks!!!
+
+	* test/rexml/xpath/test_node.rb: Add tests for the above case.
+
+Sun Feb 23 12:18:54 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/socket/raddrinfo.c (inet_pton): use rb_w32_inet_pton, instead of
+	  inet_pton directly, which is unavailable on older version Windows.
+
+	* include/ruby/win32.h, win32/win32.c (rb_w32_inet_pton): add a
+	  wrapper function for inet_pton minimum supported client is
+	  Vista, as well as inet_ntop.
+
+Sun Feb 23 11:33:25 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/net/imap/test_imap.rb: remove unused variables.
+	* test/net/imap/test_imap_response_parser.rb: ditto.
+	* test/net/pop/test_pop.rb: ditto.
+
+Sun Feb 23 02:19:51 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/resolv.rb (bind_random_port): Rescue EPERM for FreeBSD which
+	  security.mac.portacl.port_high is changed.
+	  See mac_portacl(4) for details.
+	  Reported by Jakub Szafranski.  [ruby-core:60917] [Bug #9544]
+
+Sat Feb 22 23:17:01 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rexml/xpath_parser.rb: Fix indent.
+
+Sat Feb 22 23:15:35 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/xpath/test_attribute.rb: Simplify.
+
+Sat Feb 22 20:28:47 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* tool/redmine-backporter.rb: more friendly.
+
+Sat Feb 22 20:24:43 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/test_xpath*.rb: Move to ...
+	* test/rexml/xpath/*.rb: ... here.
+
+Sat Feb 22 20:04:41 2014  Kouhei Sutou  <kou@cozmixng.org>
+
+	* test/rexml/listener.rb: Untabify.
+
+Sat Feb 22 19:07:31 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/io/console/console.c (console_dev): need read access for conout$
+	  because some functions need it.  [Bug#9554]
+
+Sat Feb 22 18:40:58 2014  Eric Wong  <e@80x24.org>
+
+	* .gitignore: ignore benchmark files
+
+Sat Feb 22 01:22:24 2014  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* bignum.c (bary_mul_precheck): fix a copy-paste error.
+	  Coverity Scan found this bug.
+
+Sat Feb 22 00:58:51 2014  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* ext/socket/raddrinfo.c (rb_getaddrinfo): second argument of
+	  MEMZERO is type.  Coverity Scan found this bug.
+
+Fri Feb 21 23:47:24 2014  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* ext/socket/init.c (wait_connectable): break if the socket is
+	  writable to avoid infinite loops on FreeBSD and other platforms
+	  which conforms to SUSv3.  This problem cannot be reproduced with
+	  loopback interfaces, so it's hard to write test code.
+	  rsock_connect() and wait_connectable() are overly complicated, so
+	  they should be refactored, but I commit this fix as a workaround
+	  for the release of Ruby 1.9.3 scheduled on Feb 24.
+	  [ruby-core:60940] [Bug #9547]
+
+Fri Feb 21 23:03:39 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/redmine-backporter.rb: added to handle redmine tickets.
+
+Fri Feb 21 20:42:01 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (rb_mod_init_copy): do nothing if copying self.
+	  [ruby-dev:47989] [Bug #9535]
+
+	* hash.c (rb_hash_initialize_copy): ditto.
+
+Fri Feb 21 16:45:54 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/logger.rb (next_rotate_time, previous_period_end): consider
+	  DST change.
+
+	* lib/logger.rb (Logger::LogDevice#check_shift_log): compare the
+	  current time with the time for the next rotation to fix rotation
+	  miss when date changed between the comparison and log writing.
+	  based on the patch by megayu <yuhg2310 AT gmail.com>.
+	  [Fixes GH-539]
+
+Fri Feb 21 10:39:33 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	*  test/monitor/test_monitor.rb: remove unused variables.
+	*  test/resolv/test_dns.rb: ditto.
+	*  test/rexml/test_functions.rb: ditto.
+	*  test/rss/test_setup_maker_itunes.rb: ditto.
+
+Fri Feb 21 09:48:56 2014  Eric Wong  <e@80x24.org>
+
+	* ext/socket/ancdata.c (bsock_sendmsg_internal): only retry on error
+	  (bsock_recvmsg_internal): ditto
+	* test/socket/test_unix.rb: test above for infinite loop
+
+Fri Feb 21 08:27:19 2014  Eric Wong  <e@80x24.org>
+
+	* include/ruby/ruby.h (RB_GC_GUARD):
+	  use rb_gc_guarded_ptr_val on non-GCC/MSC
+	* gc.c (rb_gc_guarded_ptr_val): rename and adjust argument.
+	  RB_GC_GUARD should be robust enough for any compiler.
+	  [ruby-core:60816] [Bug #7805]
+
+Thu Feb 20 22:21:26 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/raddrinfo.c (numeric_getaddrinfo): Use xcalloc.
+	  Suggested by Eric Wong.
+	  https://bugs.ruby-lang.org/issues/9525#note-14
+
+Thu Feb 20 11:21:13 2014  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (rb_hash_flatten): fix behavior of flatten(-1).
+	  [ruby-dev:47988] [Bug #9533]
+
+	* test/ruby/test_array.rb: test for above.
+
+Wed Feb 19 18:57:02 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket: Bypass getaddrinfo() if node and serv are numeric.
+	  Reporeted by Naotoshi Seo.  [ruby-core:60801] [Bug #9525]
+
+	* ext/socket/extconf.rb: Detect struct sockaddr_in6.sin6_len.
+
+	* ext/socket/sockport.h (SET_SIN6_LEN): New macro.
+	  (INIT_SOCKADDR_IN6): Ditto.
+
+	* ext/socket/rubysocket.h (struct rb_addrinfo): Add
+	  allocated_by_malloc field.
+
+	* ext/socket/raddrinfo.c (numeric_getaddrinfo): New function.
+	  (rb_getaddrinfo): Call numeric_getaddrinfo at first.
+	  (rb_freeaddrinfo): Free struct addrinfo properly when it is
+	  allocated by numeric_getaddrinfo.
+
+Wed Feb 19 18:31:48 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket: Wrap struct addrinfo by struct rb_addrinfo.
+
+Wed Feb 19 17:47:01 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/ipsocket.c (ip_s_getaddress): Don't access freed memory.
+
+Wed Feb 19 11:39:41 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: it must see rb_cv_broken_memmem not rb_cv_func_memmem.
+
+Tue Feb 18 23:18:41 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/socket/test_socket.rb: unix socket is required by test case.
+
+Tue Feb 18 20:48:38 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/socket/test_addrinfo.rb: remove unused variables.
+	* test/socket/test_nonblock.rb: ditto.
+	* test/socket/test_socket.rb: ditto.
+	* test/socket/test_unix.rb: ditto.
+	* test/testunit/test_parallel.rb: ditto.
+	* test/webrick/test_filehandler.rb: ditto.
+	* test/xmlrpc/test_features.rb: ditto.
+	* test/zlib/test_zlib.rb: ditto.
+
+Tue Feb 18 14:27:18 2014  Shota Fukumori  <her@sorah.jp>
+
+	* lib/test/unit.rb: Requires minitest < 5.0.0 if Gem is available.
+
+Tue Feb 18 14:24:07 2014  Shota Fukumori  <her@sorah.jp>
+
+	* lib/test/unit/test-unit.gemspec: Add minitest < 5.0.0 dependency
+
+	* tool/rbinstall.rb: Add empty implementations for `add_dependency`,
+	  `add_runtime_dependency`, `add_development_dependency` for
+	  Gem::Specification.
+
+Tue Feb 18 12:06:39 2014  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in (FILE_COUNT): Removed.  (win32.c defines it in itself.)
+	  (FILE_READPTR): Ditto.
+
+Tue Feb 18 09:35:44 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/test/psych/test_string.rb: remove unused variables.
+	* test/test/psych/test_yaml.rb: ditto.
+
+Mon Feb 17 21:31:31 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_gc.rb: ignore warning messages for running with -w
+	  option such as chkbuild.
+
+Mon Feb 17 20:00:27 2014  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h: Move BDIGIT and related definitions from
+	  include/ruby/defines.h.
+
+Mon Feb 17 17:41:55 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* marshal.c (marshal_dump, marshal_load): do not recycle wrapper
+	  objects, to prevent from segfault with continuation.
+	  [ruby-dev:47970] [Bug #9523]
+
+Mon Feb 17 15:43:59 2014  Zachary Scott  <e@zzak.io>
+
+	* doc/keywords.rdoc: [DOC] Add keywords doc by documenting-ruby/ruby#29
+	  https://github.com/documenting-ruby/ruby/pull/29
+
+Mon Feb 17 12:31:31 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (get_envparam_double): fix a warning message.
+
+Mon Feb 17 12:09:52 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: introduce new environment variable
+	  "RUBY_GC_HEAP_OLDOBJECT_LIMIT_FACTOR" to control major/minor GC
+	  frequency.
+
+	  Do full GC when the number of old objects is more than R * N
+	  where R is this factor and
+                N is the number of old objects just after last full GC.
+
+	* test/ruby/test_gc.rb: add a test.
+
+Mon Feb 17 11:28:40 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/test_pty.rb: ignore warnings to unused variables.
+
+Mon Feb 17 11:27:36 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/test_find.rb: remove unused variables.
+
+Sun Feb 17 02:12:00 2014  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_initialize): Insert GC guard.
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_global_new): ditto.
+
+Sun Feb 16 15:53:36 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/test_securerandom.rb: File.exists? is deprecated. use File.exist?
+
+Sun Feb 16 15:05:00 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/pathname/test_pathname.rb: File.exists? is deprecated. use File.exist?
+
+Sun Feb 16 15:00:28 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* test/net/ftp/test_ftp.rb: remove unused variables.
+	* test/logger/test_logger.rb: ditto.
+
+Sun Feb 16 14:52:46 2014  Eric Wong  <e@80x24.org>
+
+	* dir.c (dir_s_glob): RB_GC_GUARD instead of volatile
+
+Sun Feb 16 14:33:52 2014  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/ruby.h (RBIGNUM_SIGN): Defined for compatibility.
+	  (RBIGNUM_POSITIVE_P): Ditto.
+	  (RBIGNUM_NEGATIVE_P): Ditto.
+
+Sun Feb 16 12:46:47 2014  Eric Wong  <e@80x24.org>
+
+	* io.c (rb_f_backquote): trade volatile for manual recycle
+	  rb_gc_force_recycle ensures object is visible until recycle
+
+Sun Feb 16 11:55:14 2014  Eric Wong  <e@80x24.org>
+
+	* marshal.c (marshal_dump): use rb_gc_force_recycle for GC-safety
+	  (marshal_load): ditto
+	  [ruby-core:60730] [Bug #7805]
+
+Sun Feb 16 08:11:23 2014  Zachary Scott  <e@zzak.io>
+
+	* README.EXT.ja: [DOC] Fix typo by @utenmiki [Fixes GH-534]
+	  https://github.com/ruby/ruby/pull/534
+
+Sun Feb 16 07:48:20 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/bigdecimal/bigdecimal.c (BIGNUM_ZERO_P): Unused macro removed.
+
+Sun Feb 16 06:12:23 2014  Tanaka Akira  <akr@fsij.org>
+
+	* internal.h: Rename macro names: RBIGNUM_FOO to BIGNUM_FOO.
+	  (BIGNUM_EMBED_LEN_NUMBITS): Renamed from RBIGNUM_EMBED_LEN_NUMBITS.
+	  (BIGNUM_EMBED_LEN_MAX): Renamed from RBIGNUM_EMBED_LEN_MAX.
+	  (BIGNUM_SIGN_BIT): Renamed from RBIGNUM_SIGN_BIT.
+	  (BIGNUM_SIGN): Renamed from RBIGNUM_SIGN.
+	  (BIGNUM_SET_SIGN): Renamed from RBIGNUM_SET_SIGN.
+	  (BIGNUM_POSITIVE_P): Renamed from RBIGNUM_POSITIVE_P.
+	  (BIGNUM_NEGATIVE_P): Renamed from RBIGNUM_NEGATIVE_P.
+	  (BIGNUM_EMBED_FLAG): Renamed from RBIGNUM_EMBED_FLAG.
+	  (BIGNUM_EMBED_LEN_MASK): Renamed from RBIGNUM_EMBED_LEN_MASK.
+	  (BIGNUM_EMBED_LEN_SHIFT): Renamed from RBIGNUM_EMBED_LEN_SHIFT.
+	  (BIGNUM_LEN): Renamed from RBIGNUM_LEN.
+	  (RBIGNUM_DIGITS): Renamed from RBIGNUM_DIGITS.
+	  (BIGNUM_LENINT): Renamed from RBIGNUM_LENINT.
+
+	* bignum.c: Follow the above change.
+
+	* gc.c: Ditto.
+
+	* marshal.c: Ditto.
+
+	* math.c: Ditto.
+
+	* numeric.c: Ditto.
+
+	* random.c: Ditto.
+
+	* rational.c: Ditto.
+
+	* sprintf.c: Ditto.
+
+	* ext/-test-/bignum/bigzero.c: Ditto.
+
+	* ext/-test-/bignum/intpack.c: Ditto.
+
+	* ext/bigdecimal/bigdecimal.c: Ditto.
+
+Sat Feb 15 20:48:49 2014  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in (FILE_READEND): Don't detect it because it is not used.
+
+Sat Feb 15 13:22:28 2014  Eric Wong  <e@80x24.org>
+
+	* probes_helper.h (RUBY_DTRACE_HOOK): correct type for _id
+
+Sat Feb 15 11:47:47 2014  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big_cmp): Avoid bignum allocation for comparison
+	  between bignum and fixnum.
+
+Sat Feb 15 10:55:12 2014  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
+
+	* ext/-test-/win32/fd_setsize/depend: fix wrong dependencies.
+	  [ruby-dev:47253]
+
+Sat Feb 15 00:38:54 2014  Tanaka Akira  <akr@fsij.org>
+
+	* enum.c: Enumerable#{min,min_by,max,max_by} extended to take an
+	  optional argument.
+	  (nmin_cmp): New function.
+	  (nmin_block_cmp): Ditto
+	  (nmin_filter): Ditto.
+	  (nmin_i): Ditto.
+	  (nmin_run): Ditto.
+	  (enum_min): Call nmin_run if the optional argument is given.
+	  (nmin_max): Ditto.
+	  (nmin_min_by): Ditto.
+	  (nmin_max_by): Ditto.
+
+	* range.c: Range#{min,max} extended to take an optional argument.
+	  (range_min): Call range_first if the optional argument is given.
+	  (range_max): Call rb_call_super if the optional argument is given.
+
+	[ruby-core:57111] [Feature #8887]
+
+Sat Feb 15 00:27:46 2014  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/ruby.h,
+	  internal.h,
+	  ext/-test-/bignum/bigzero.c: Hide a Bignum definition.
+	  [ruby-core:42891] [Feature #6083]
+
+Sat Feb 15 00:13:14 2014  Tanaka Akira  <akr@fsij.org>
+
+	* include/ruby/intern.h,
+	  include/ruby/io.h,
+	  include/ruby/ruby.h,
+	  include/ruby/win32.h,
+	  include/ruby/backward/rubysig.h,
+	  bignum.c,
+	  gc.c,
+	  io.c,
+	  process.c,
+	  safe.c,
+	  struct.c,
+	  thread.c,
+	  ext/socket/rubysocket.h,
+	  ext/-test-/old_thread_select: Remove deprecated definitions
+	  [ruby-core:60581] [Feature #9502]
+
+Fri Feb 14 18:38:46 2014  Eric Wong  <e@80x24.org>
+
+	* string.c (rb_str_format_m): trade volatile for RB_GC_GUARD
+	  RB_GC_GUARD meaning is clear and has better code generation.
+	  [ruby-core:60688]
+
+Thu Feb 13 23:30:30 2014  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_call_method): should check ci->me->flag of
+	  a refining method in case the method is private.
+	  [ruby-core:60111] [Bug #9452]
+
+	* vm_method.c (make_method_entry_refined): set me->flag of a refined
+	  method entry to NOEX_PUBLIC in case the original method is private
+	  and it is refined as a public method.  The original flag is stored
+	  in me->def->body.orig_me, so it's OK to make a refined method
+	  entry public.  [ruby-core:60111] [Bug #9452]
+
+	* test/ruby/test_refinement.rb: related tests.
+
+Thu Feb 13 18:38:15 2014  Eric Wong  <e@80x24.org>
+
+	* re.c (rb_reg_raise): remove volatile
+	  Unnecessary since r41597
+
+Thu Feb 13 18:28:51 2014  Eric Wong  <e@80x24.org>
+
+	* re.c (rb_reg_regcomp): remove volatile
+	  Unnecessary since r13261
+
+Thu Feb 13 16:54:32 2014  Zachary Scott  <e@zzak.io>
+
+	* test/ruby/test_array.rb: Ensure flatten! is used for test_flatten
+	  Patch by @ksss [Fixes GH-530] https://github.com/ruby/ruby/pull/530
+
+Thu Feb 13 15:43:16 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (IDSET_ATTRSET_FOR_INTERN): fix off-by-one bug.
+
+	* parse.y (rb_enc_symname_type): junk ID succeeded by '=' is also
+	  attrset ID.  [ruby-core:60668] [Bug #8756]
+
+Thu Feb 13 11:06:32 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: check if pthread_setname_np is available.
+
+	* thread_pthread.c: pthread_setname_np is not available on old
+	  Darwins.  [ruby-core:60524] [Bug #9492]
+
+Thu Feb 13 00:56:59 2014  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* configure.in: revert r44922. I should have used AC_CHECK_FUNCS()
+	  to just define a symbol if the function is available.
+
+Thu Feb 13 00:20:58 2014  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* configure.in: use AC_CHECK_FUNC instead of AC_CHECK_FUNCS
+	  if available.
+
+Thu Feb 13 00:15:10 2014  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* configure.in: fix to undefine HAVE_MEMMEM correctly if it is broken.
+
+Tue Feb 11 23:54:40 2014  Tanaka Akira  <akr@fsij.org>
+
+	* bignum.c (rb_big_cmp): Specialize a comparison to zero.
+
+	* ext/bigdecimal/bigdecimal.c (is_negative): Use rb_big_cmp instead of
+	  RBIGNUM_NEGATIVE_P.
+	  (BigMath_s_log): Ditto.
+
+Tue Feb 11 22:59:10 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/openssl/ossl_bn.c (ossl_bn_initialize): Use rb_integer_pack.
+	  Fix SEGV by OpenSSL::BN.new(1 << (2**34)).
+
+Tue Feb 11 17:00:38 2014  Zachary Scott  <e@zzak.io>
+
+	* ext/tk/README.tcltklib: [DOC] Fix typo by @xta [Fixes GH-532]
+
+Sun Feb  9 13:59:29 2014  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Fix compilation error.
+	  https://bugs.ruby-lang.org/issues/8358#note-16
+
+Sun Feb  9 05:20:24 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in (rb_cv_gnu_qsort_r): use compile error "conflicting
+	  types for 'qsort_r'" instead of AC_RUN_IFELSE.
+
+Sun Feb  9 04:07:34 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/yaml.rb: [DOC] Add links to syck and psych on github [Bug #9501]
+	  Based on a patch by Giorgos Tsiftsis
+
+Sun Feb  9 02:13:53 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (OBJ_TAINTABLE, OBJ_TAINT, OBJ_INFECT),
+	  marshal.c (r_entry0): all Numerics never be tainted now.
+	  [ruby-core:57346] [Bug #8945]
+
+Sat Feb  8 23:40:35 2014  Vit Ondruch  <vondruch@redhat.com>
+
+	* configure.in: add quoting brackets and append wildcard for the
+	  rest after target_cpu, to properly detect platform for SSE2
+	  instructions.  [ruby-core:60576] [Bug #8358]
+
+Sat Feb  8 21:44:07 2014  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* configure.in: check qsort_r(3) and whether it is GNU version.
+	  BSD version has different prototype.
+
+	* util.h: use qsort_r() as ruby_qsort() if it is GNU version.
+
+	* util.c: define ruby_qsort() if needed.
+
+Sat Feb  8 16:34:36 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/resolv.rb (Resolv::DNS::Message::MessageDecoder#get_labels):
+	  Make it iterative.
+
+Sat Feb  8 15:54:12 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c, gc.h (rb_objspace_marked_object_p): added.
+	  This function *ONLY* works just after marking phase,
+	  before any sweeping.
+	  This function is highly depending current GC implementation
+	  and can be removed future version.
+
+Sat Feb  8 15:41:37 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/resolv.rb: Don't set CLOEXEC flag explicitly.  (Ruby set it by
+	  default.)
+
+Sat Feb  8 15:27:02 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/resolv.rb (Resolv::DNS::Message::MessageDecoder): Raise
+	  DecodeError if no data before the limit.
+	  Reported by Will Bryant.  [ruby-core:60557] [Bug #9498]
+
+Sat Feb  8 15:11:21 2014  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (SMALLBUF): Unused macro removed.
+
+Fri Feb  7 23:37:49 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/resolv.rb: Ignore name servers which cause EAFNOSUPPORT on
+	  socket creation.
+	  Reported by Bjoern Rennhak.  [ruby-core:60442] [Bug #9477]
+
+Fri Feb  7 21:58:48 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/open-uri.rb: [DOC] use lower case version of core classes, same
+	  as commit r44878, based on patch by Jonathan Jackson [Bug #9483]
+
+Fri Feb  7 21:54:53 2014  Zachary Scott  <e@zzak.io>
+
+	* ext/ripper/lib/ripper/lexer.rb: [DOC] use lower case version of core
+	  classes when referring to return value, since we aren't directly
+	  talking about the class. Patch by Jonathan Jackson [Bug #9483]
+
+Fri Feb 7 05:28:38 2014  Eric Wong  <e@80x24.org>
+
+	* constant.h: reduce rb_const_entry_t size on 64-bit
+	  Patch by Adam Avilla [ruby-core:60542] [Feature #9496]
+
+Thu Feb  6 15:27:46 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (get_envparam_int): correct warning messages.
+
+	* gc.c (get_envparam_double): ditto.
+
+Thu Feb  6 15:17:30 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (get_envparam_int): don't accept a value equals to lowerbound
+	  (changed by last commit) because "" or "foo" (not a number) strings
+	  are parsed as 0. They should be rejected.
+
+	* gc.c (get_envparam_double): ditto.
+
+Thu Feb  6 09:00:35 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (ruby_gc_set_params): if RUBY_GC_OLDMALLOC_LIMIT is provided,
+	  then set objspace->rgengc.oldmalloc_increase_limit.
+	  Without this fix, the env variable RUBY_GC_OLDMALLOC_LIMIT
+	  does not work.
+
+	* gc.c (get_envparam_int): accept a value equals to lowerbound.
+
+	* gc.c (get_envparam_double): ditto.
+
+Thu Feb 6 08:23:28 2014  Eric Wong  <e@80x24.org>
+
+	* ext/thread/thread.c (rb_szqueue_max_set): use correct queue and
+	  limit wakeups.  [Bug #9343][ruby-core:60517]
+	* test/thread/test_queue.rb (test_sized_queue_assign_max):
+	  test for bug
+
+Thu Feb  6 07:18:01 2014  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems 2.2.2.  Complete history at:
+
+	  http://rubygems.rubyforge.org/rubygems-update/History_txt.html#label-2.2.2+%2F+2014-02-05
+
+	* test/rubygems:  ditto.
+
+Wed Feb  5 20:56:32 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* marshal.c (to_be_skipped_id): ignore anonymous attributes.
+
+	* pack.c (Init_pack): use anonymous ID so that associated objects
+	  do not appear in the packed result.
+
+	* parse.y (rb_make_internal_id): return an anonymous ID for
+	  internal use.
+
+Wed Feb  5 14:41:56 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* vsnprintf.c: remove duplicated def of `UNINITIALIZED_VAR()'.
+
+Wed Feb  5 14:40:16 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* ext/objspace/objspace_dump.c (dump_object): use STR_SHARED_P()
+	  instead of removed STR_NOCAPA_P() macro.
+
+Wed Feb  5 13:51:33 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* internal.h, vm_core.h: move LIKELY/UNLIKELY/UNINITIALIZED_VAR()
+	  macros from vm_core.h to internal.h.
+
+	* string.c: remove dependency to "vm_core.h".
+
+	* common.mk: ditto.
+
+Wed Feb  5 13:29:01 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* string.c (rb_str_free): use FL_TEST(str, STR_SHARED) directly
+	  because str is not embed.
+
+	* string.c (str_replace): remove `FL_SET(str, STR_SHARED)' line
+	  because STR_SET_SHARED() set STR_SHARED.
+
+Wed Feb  5 13:18:08 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* internal.h: remove macros STR_NOCAPA and STR_NOCAPA_P().
+
+	* string.c (rb_str_resize): remove `STR_SET_NOEMBED(str)' because
+	  str_make_independent_expand() set NOEMBED flag.
+
+	* string.c (rb_str_resize): remove `STR_NOCAPA_P(str)' check because
+	  `str' is independent (not shared).
+
+Wed Feb  5 12:54:25 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* string.c: refactoring, especially about string flags.
+
+	* string.c (STR_UNSET_NOCAPA): removed.
+	  Use FL_UNSET() with STR_SHARED.
+
+	* string.c (rb_str_capacity): check STR_SHARED directly
+	  because it is not a embed string.
+
+	* string.c (rb_str_modify_expand): ditto.
+
+	* string.c (rb_str_shared_replace): use STR_SET_SHARED().
+
+	* string.c (str_make_independent_expand): remove STR_UNSET_NOCAPA()
+	  because `str' is not shared string.
+
+Wed Feb  5 12:11:04 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* string.c (RESIZE_CAPA): should not resize shared string.
+
+Wed Feb  5 11:46:42 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_mark_children): STR_ASSOC is no longer available.
+	  Reported by @nagachika.
+	  http://d.hatena.ne.jp/nagachika/20140204
+
+Wed Feb  5 11:27:22 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* string.c (rb_str_new_frozen): refactoring code.
+	  * Move code from str_new_frozen_with_klass() (and remove it)
+	  * `aux.shared' should not be 0 for STR_SHARED strings.
+
+Wed Feb  5 04:23:41 2014  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych.rb: New release of psych.
+	* ext/psych/psych.gemspec: ditto
+
+Wed Feb  5 04:16:41 2014  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/yaml/emitter.c: merge libyaml 0.1.5
+	* ext/psych/yaml/loader.c: ditto
+	* ext/psych/yaml/parser.c: ditto
+	* ext/psych/yaml/reader.c: ditto
+	* ext/psych/yaml/scanner.c: ditto
+	* ext/psych/yaml/writer.c: ditto
+	* ext/psych/yaml/yaml_private.h: ditto
+
+Tue Feb  4 19:10:29 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* string.c: use long allocator names instead of numbered
+	  allocator names.
+	  * rb_str_new2 -> rb_str_new_cstr
+	  * rb_str_new4 -> rb_str_new_frozen
+	  * rb_str_new5 -> rb_str_new_with_class
+	  * str_new3 -> str_new_shared
+	  * str_new4 -> str_new_frozen_with_klass
+
+Tue Feb  4 17:20:03 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (glob_helper): return the filename with actual cases on
+	  the filesystem if it is case-insensitive.  [ruby-core:42469]
+	  [Feature #5994]
+
+Tue Feb  4 16:16:58 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* string.c: use STR_SHARED instead of ELTS_SHARED.
+	  (same value, but more clear meaning)
+
+Tue Feb  4 16:09:14 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* string.c: remove STR_ASSOC related code.
+	  By r44804, string objects can not have STR_ASSOC flag.
+
+	* internal.h: ditto.
+
+	* ext/objspace/objspace_dump.c (dump_object): ditto.
+
+Tue Feb  4 14:07:20 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* pack.c (str_associate, str_associated): keep associated objects
+	  in an instance variables, instead of in the internal structure.
+
+	* string.c (rb_str_associate, rb_str_associated): deprecate.
+
+Tue Feb  4 12:55:31 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (rb_str_modify_expand): enable capacity and disable
+	  association with packed objects when setting capa, so that
+	  pack("p") string fails to unpack properly after modified.
+
+Tue Feb  4 12:45:15 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dir.c (glob_make_pattern): all alphabets are magic characters on
+	  case-insensitive filesystems.  [ruby-core:42469] [Feature #5994]
+
+Tue Feb  4 09:47:57 2014  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems 2.2.2 prerelease to check fixes to
+	  CI.
+	* test/rubygems:  ditto.
+
+Mon Feb  3 12:04:47 2014  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* error.c: [DOC] Exception#cause may return nil. [ci skip]
+
+Sun Feb 2 05:48:42 2014  Eric Wong <e@80x24.org>
+
+	* io.c (rb_io_syswrite): add RB_GC_GUARD
+	  [Bug #9472][ruby-core:60407]
+
+Sat Feb  1 15:09:16 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
+
+	* ext/win32ole/win32ole.c (ole_typedesc2val): add VT_RECORD case.
+
+Sat Feb  1 06:38:51 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/drb/drb.rb: [DOC] Add note about start_service for each process
+	  Based on a patch by @rosenfeld [Fixes GH-514] [ci skip]
+	  https://github.com/ruby/ruby/pull/514
+
+Sat Feb  1 06:30:20 2014  Zachary Scott  <e@zzak.io>
+
+	* error.c: [DOC] Document Exception#cause by @jasonrclark [ci skip]
+	  [Fixes GH-519] https://github.com/ruby/ruby/pull/519
+
+Sat Feb  1 06:10:49 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/securerandom.rb: [DOC] Add note on require for examples
+	  Based on a patch by @schneems [Fixes GH-518] [ci skip]
+	  https://github.com/ruby/ruby/pull/518
+
+Sat Feb  1 06:04:56 2014  Zachary Scott  <e@zzak.io>
+
+	* numeric.c: [DOC] Fix typo in example for #step [ci skip]
+	  Patch by @ksss [Fixes GH-522] https://github.com/ruby/ruby/pull/522
+
+Fri Jan 31 17:01:47 2014  Eric Wong <e@80x24.org>
+
+	* ext/socket/init.c (rsock_socket0): split out SOCK_CLOEXEC version
+	* ext/socket/socket.c (rsock_socketpair0): ditto
+	  [ruby-core:60377]
+
+Fri Jan 31 03:48:40 2014  Eric Wong <e@80x24.org>
+
+	* benchmark/driver: avoid large alloc in driver process
+	  [ruby-core:59869] [Bug #9430]
+
+Thu Jan 30 14:45:49 2014  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* configure.in: use $@ instead of $(.TARGET) because .TARGET is not
+	  supported by GNU make.
+
+Thu Jan 30 08:26:21 2014  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* ext/fiddle/closure.c: use sizeof(*pcl) for correct sizeof value.
+	  [ruby-core:57599] [Bug #8978].
+
+Wed Jan 29 20:08:15 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (nogvl_copy_stream_sendfile): check socket on other than
+	  linux, as sendfile(2) on non-socket fd works only on linux.
+	  [Feature #9427]
+
+Wed Jan 29 18:09:48 2014  Eric Wong <e@80x24.org>
+
+	* io.c (nogvl_copy_stream_sendfile): remove socket check
+	  [ruby-core:59856][Feature #9427]
+
+Wed Jan 29 04:29:54 2014  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/openssl/ossl_ssl.c: pass read_nonblock options to underlying IO
+	  when SSL session has not been started.
+
+	* test/openssl/test_ssl.rb: test for change.
+
+Wed Jan 29 03:49:36 2014  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/fiddle/closure.c: use sizeof(*pcl) for correct sizeof value.
+	  [ruby-core:57599] [Bug #8978].  Thanks mame!
+
+Wed Jan 29 03:36:42 2014  Eric Wong <e@80x24.org>
+
+	* doc/contributing.rdoc: allow/encourage other git hosts
+	  [ruby-core:59807][misc #9421]
+
+Tue Jan 28 23:36:01 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket: Avoid redundant fcntl/fstat syscalls for cloexec
+	  sockets.
+	  Patch by Eric Wong.  [ruby-core:59429] [Feature #9330]
+
+Tue Jan 28 20:51:07 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (READ_FROM_CHILD): Apply the last hunk of
+	  0001-process.c-avoid-EINTR-from-Process.spawn.patch written by
+	  Eric Wong in [Bug #8770].
+
+Tue Jan 28 16:31:13 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread_pthread.c (ruby_init_stack, ruby_stack_overflowed_p):
+	  place get_stack above others to get stack boundary information.
+	  [ruby-core:60113] [Bug #9454]
+
+Tue Jan 28 15:27:36 2014  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* thread_pthread.c: rlimit is only available on Linux.
+	  At least r44712 breaks FreeBSD.
+	  [ruby-core:60113] [Bug #9454]
+
+Tue Jan 28 15:17:59 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/set.rb: [DOC] Add examples for Set#intersect? and Set#disjoint?
+	  Patch by xavier nayrac [Bug #9331] [ci skip]
+
+Tue Jan 28 15:12:22 2014  Zachary Scott  <e@zzak.io>
+
+	* ext/zlib/zlib.c (rb_zlib_adler32): [DOC] Add example for adler32
+	  Patch by Vajrasky Kok [Bug #9307] [ci skip]
+
+Tue Jan 28 08:56:00 2014  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* compile.c (iseq_build_from_ary_body): Use :blockptr instead of :block
+	  as hash key when loading serialized instruction sequences from arrays.
+	  [Bug #9455] [ruby-core:60146]
+
+Mon Jan 27 21:52:55 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread_pthread.c: get current main thread stack size, which may
+	  be expanded than allocated size at initialization, by rlimit().
+	  [ruby-core:60113] [Bug #9454]
+
+Sat Jan 25 22:17:02 2014  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* README.ja.md, README.md: update the controller address of
+	  mailing lists.
+
+Sat Jan 25 14:50:42 2014  Eric Wong  <normalperson@yhbt.net>
+
+	* process.c (send_child_error): retry write on EINTR to fix
+	  occasional Errno::EINTR from Process.spawn.
+
+	* process.c (recv_child_error): retry read on EINTR to fix
+	  occasional Errno::EINTR from Process.spawn.
+
+Sat Jan 25 14:21:06 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_compile_each): result of assignment should be
+	  its rhs instead of returned value from a method.
+	  [ruby-core:60071] [Bug #9448]
+
+Sat Jan 25 11:16:19 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* class.c (rb_extract_keywords): treat nil keyword_hash same as 0,
+	  for the case rb_scan_args returns nil if no keyword hash.
+
+Fri Jan 24 15:13:20 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/racc/rdoc/grammar.en.rdoc: [DOC] Correct grammar and typos
+	  Patch by Giorgos Tsiftsis [Bug #9429] [ci skip]
+
+Thu Jan 23 20:20:17 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/envutil.rb: try to wait a bit (0.1sec) when ruby process
+	  exits by signals because some SEGV tests fail because of not enough
+	  error output.
+
+Thu Jan 23 20:06:27 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_settracefunc.rb: check the target thread.
+
+Thu Jan 23 19:59:16 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_settracefunc.rb: check the target thread.
+
+Thu Jan 23 14:26:44 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/fileutils.rb: [DOC] Fix typo in options_of() example [Bug #9392]
+	  Patch by Giorgos Tsiftsis
+
+Thu Jan 23 13:56:16 2014  Zachary Scott  <e@zzak.io>
+
+	* README -> README.md: [DOC] Format README with Markdown [Bug #9255]
+	* README.ja -> README.ja.md: ditto
+
+Wed Jan 22 15:59:39 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/thread/thread.c (Init_thread): ConditionVariable and Queue
+	  are not able to copy.  [ruby-core:59961] [Bug #9440]
+
+Tue Jan 21 20:14:55 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread_pthread.c (rb_thread_create_timer_thread): fix for platforms
+	  where PTHREAD_STACK_MIN is a dynamic value and not a compile-time
+	  constant.  [ruby-dev:47911] [Bug #9436]
+
+Tue Jan 21 17:55:09 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/uri/common.rb: [DOC] Use static w3.org uri [ci skip]
+	  Patch by @ykzts [Fix GH-484] https://github.com/ruby/ruby/pull/484
+
+Tue Jan 21 16:43:22 2014  Zachary Scott  <e@zzak.io>
+
+	* enum.c: [DOC] Add simple example of Enumerable#zip [ci skip]
+	  Patch by @nruth on documenting-ruby/ruby#22
+	  https://github.com/documenting-ruby/ruby/pull/22
+
+Tue Jan 21 16:26:44 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread_pthread.c (rb_thread_create_timer_thread): expand timer
+	  thread stack size to get rid of segfault on FreeBSD/powerpc64.
+	  based on the patch by Steve Wills at [ruby-core:59923].
+	  [ruby-core:56590] [Bug #8783]
+
+Tue Jan 21 04:31:23 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/option.c: Use "int" for IP_MULTICAST_LOOP and
+	  IP_MULTICAST_TTL on Mac OS X and Windows.
+
+Tue Jan 21 00:39:15 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/option.c: Use "byte" as default argument for
+	  IP_MULTICAST_LOOP and IP_MULTICAST_TTL socket option to follow
+	  the original multicast implementation.
+
+Mon Jan 20 20:20:27 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/option.c: Use preprocessor macros to avoid repeated
+	  conditionals.
+
+Mon Jan 20 13:55:03 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/rubygems/version.rb: [DOC] Use gender-neutral pronouns [ci skip]
+	* lib/rubygems/security.rb: ditto
+
+Sun Jan 19 06:38:48 2014  Benoit Daloze  <eregontp@gmail.com>
+
+	* compar.c (cmp_equal): warn for this release and still rescue
+	  standard exceptions for a nicer transition. See #7688.
+	  Partly reverts r44502.
+
+	* test/ruby/test_comparable.rb: adapt assertion to match new behavior.
+
+Sun Jan 19 06:27:18 2014  Benoit Daloze  <eregontp@gmail.com>
+
+	* test/ruby/test_comparable.rb: specify behavior for the different
+	  kind of exceptions rescued (or not) by Comparable#==.
+
+Sat Jan 18 23:12:19 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket: Avoid unnecessary ppoll/select on Linux.
+	  Patch by Eric Wong.  [ruby-core:57950] [Bug #9039]
+
+Sat Jan 18 22:57:44 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/resolv.rb (Resolv::DNS::Resource::TXT#data): Return concatenated
+	  string.
+	  Patch by Ryan Brunner.  [ruby-core:58220] [Bug #9093]
+
+Sat Jan 18 22:35:15 2014  Tanaka Akira  <akr@fsij.org>
+
+	* io.c (rb_update_max_fd): Return immediately if the given fd is small
+	  enough.
+
+Sat Jan 18 22:25:53 2014  Tanaka Akira  <akr@fsij.org>
+
+	* io.c: Test O_CLOEXEC only once.
+	  Patch by Eric Wong.  [ruby-core:59419] [Feature #9328]
+
+Sat Jan 18 21:24:49 2014  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/option.c: IP_MULTICAST_LOOP and IP_MULTICAST_TTL socket
+	  option takes a byte on OpenBSD.
+	  Fixed by Jeremy Evans.  [ruby-core:59496] [Bug #9350]
+
+Sat Jan 18 21:19:04 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/open-uri.rb: Make proxy disabling working again.
+	  Fixed by Christophe Philemotte.   [ruby-core:59650] [Bug #9385]
+
+Fri Jan 17 20:05:02 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/delegate.rb (Delegator): keep source information methods
+	  which start and end with '__'.  [ruby-core:59718] [Bug #9403]
+
+Fri Jan 17 17:58:04 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval.c (rb_mod_s_constants): return its own constants for other
+	  than Module itself.  [ruby-core:59763] [Bug #9413]
+
+Tue Jan 16 00:17:00 2014  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.gemspec: bigdecimal version 1.2.5.
+
+Wed Jan 15 20:30:31 2014  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* io.c (io_binwrite): use writev(2) to avoid double write if available.
+
+	* configure.in: check writev(2)
+
+Wed Jan 15 14:04:33 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (get_encoding): respect BOM on pseudo encodings.
+	  [ruby-dev:47895] [Bug #9415]
+
+Wed Jan 15 14:03:47 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (get_actual_encoding): get actual encoding according to
+	  the BOM if exists.
+
+	* string.c (rb_str_inspect): use according encoding, instead of
+	  pseudo encodings, UTF-{16,32}.  [ruby-core:59757] [Bug #8940]
+
+Tue Jan 14 21:07:22 2014  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* ext/thread/thread.c (rb_szqueue_clear): notify SZQUEUE_WAITERS
+	  on SizedQueue#clear. [ruby-core:59462] [Bug #9342]
+
+	* test/thread/test_queue.rb: add test. the patch is from
+	  Justin Collins.
+
+Tue Jan 14 15:58:43 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/bigdecimal/bigdecimal.c (CLASS_NAME): macro to wrap
+	  depending on PRIsVALUE for 1.9.  [Backport #9406]
+
+	* ext/bigdecimal/bigdecimal.c (DECIMAL_SIZE_OF_BITS): fallback
+	  definition for 2.1 or older.  [ruby-core:59750] [Backport #9406]
+
+Tue Jan 14 11:28:44 2014  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* vm_exec.c (cfp): Fixes a SEGV issue in r44554.
+	  r11 can be broken by subroutine and sometimes causes SEGV at
+	  runtime.  Use r13 instead.
+
+Tue Jan 14 02:20:00 2014  Kenta Murata  <mrkn@mrkn.jp>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_divide): Add an additional
+	  digit for the quotient to be compatible with bigdecimal 1.2.1 and
+	  the former.  [ruby-core:59365] [#9316] [#9305]
+
+	* test/bigdecimal/test_bigdecimal.rb: tests for the above change.
+
+	* ext/bigdecimal/bigdecimal.gemspec: bigdecimal version 1.2.4.
+
+Mon Jan 13 14:55:31 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/xmlrpc/client.rb: [DOC] Remove note about SSL package on RAA
+	  Since RAA has been deprecated, and the SSL package has been replaced
+	  with net/https this statement is entirely false and should be
+	  deleted. [Bug #9152]
+
+Mon Jan 13 14:47:07 2014  Zachary Scott  <e@zzak.io>
+
+	* lib/net/smtp.rb: [DOC] Remove dead link to RAA by Giorgos Tsiftsis
+	  Fixes the following bugs: [Bug #9152] [Bug #9268] [Bug #9394]
+	* lib/open-uri.rb: ditto
+
+Mon Jan 13 14:25:55 2014  Zachary Scott  <e@zzak.io>
+
+	* ext/openssl/ossl_pkey_dh.c: Fixed typo by Sandor Szuecs [Bug #9243]
+
+Mon Jan 13 12:03:00 2014  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* ext/thread/thread.c (rb_szqueue_push): check GET_SZQUEUE_WAITERS
+	  instead of GET_QUEUE_WAITERS to prevent deadlock. Patch by Eric Wong.
+	  [Bug #9302] [ruby-core:59324]
+
+	* test/thread/test_queue.rb: add test
+
+Sun Jan 12 16:41:10 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* iseq.c (iseq_load): keep type_map to get rid of memory leak.
+	  based on a patch by Eric Wong at [ruby-core:59699].  [Bug #9399]
+
+Sun Jan 12 09:21:35 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/util.h (DECIMAL_SIZE_OF_BITS): a preprocessor
+	  constant macro to approximate decimal representation size of n-bits
+	  integer.
+
+	* iseq.c (register_label): use DECIMAL_SIZE_OF_BITS for better
+	  approximation.
+
+	* ext/bigdecimal/bigdecimal.c (BigMath_s_log): ditto.
+
+	* common.mk (iseq.o), ext/bigdecimal/depend (bigdecimal.o): add
+	  dependency to ruby/util.h for DECIMAL_SIZE_OF_BITS.
+
+Fri Jan 10 16:27:20 2014  Yuki Yugui Sonoda  <yugui@google.com>
+
+	* vm_exec.c (cfp): Avoid generating invalid binary for
+	  NativeClient.
+	  r15 on x86_64 is reserved by NativeClient.  So r15 to cfp used to
+	  generate invalid binary under some combinations of compiler
+	  optimization flags.
+
+Fri Jan 10 18:01:41 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_search_super_method): allow bound method from a
+	  module, yet another method transplanting.
+
+Fri Jan 10 13:34:04 2014  Aman Gupta <ruby@tmm1.net>
+
+	* insns.def (opt_aref_with): new instruction to optimize Hash#[],
+	  removing any allocation overhead when used with a string literal
+	  key. Patch by normalperson (Eric Wong). [ruby-core:59640] [Bug #9382]
+	* insns.def (opt_aset_with): new instruction to optimize Hash#[]=
+	* compile.c (iseq_compile_each): compiler shortcuts for new
+	  instructions
+	* hash.c (static VALUE rb_hash_compare_by_id_p): fix documentation for
+	  Hash#compare_by_identity to reflect frozen string sharing
+	* test/ruby/test_hash.rb (class TestHash): test for new behavior
+
+Fri Jan 10 06:23:21 2014  Benoit Daloze  <eregontp@gmail.com>
+
+	* range.c (Range#size): [DOC] improve description and add examples.
+	  Patch by @skade. [Fixes GH-501]
+
+Fri Jan 10 00:47:52 2014  Josef Stribny  <strzibny@gmail.com>
+
+	* ext/tk/extconf.rb: fix to pass arrays instead of strings to
+	  libpathflag.  patch at [ruby-core:59665].  [Bug #9386]
+
+Thu Jan  9 20:49:22 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: -mstackrealign is necessary for -msse2 working.
+	  [ruby-core:54716] [Bug #8349]
+
+	* configure.in: use SSE2 instructions to drop unexpected precisions on
+	  other than mingw.  [ruby-core:59472] [Bug #8358]
+
+Thu Jan  9 20:31:10 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* hash.c (rb_objid_hash): should return `long'.  brushup r44534.
+
+	* object.c (rb_obj_hash): follow above change.
+
+Thu Jan  9 19:12:37 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* vm.c (rb_vm_pop_cfunc_frame): added.  It cares c_return event.
+	  The patch base by drkaes (Stefan Kaes).
+	  [Bug #9321]
+
+	* variable.c (rb_mod_const_missing): use rb_vm_pop_cfunc_frame()
+	  instead of rb_frame_pop().
+
+	* vm_eval.c (raise_method_missing): ditto.
+
+	* vm_eval.c (rb_iterate): ditto.
+
+	* internal.h (rb_vm_pop_cfunc_frame): add decl.
+
+	* test/ruby/test_settracefunc.rb: add tests.
+	  provided by drkaes (Stefan Kaes).
+
+	* vm.c, eval.c, include/ruby/intern.h (rb_frame_pop):
+	  move definition of rb_frame_pop() and deprecate it.
+	  It doesn't care about `return' events.
+
+Thu Jan  9 17:40:28 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* hash.c (rb_any_hash): should treat the return value of rb_objid_hash()
+	  as `long', because ruby assumes the hash value of the object id of
+	  an object is `long'.
+	  this fixes test failures on mswin64 introduced at r44525.
+
+Thu Jan  9 09:55:20 2014  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: dumping strings with
+	  quotes should not have changed.  [ruby-core:59316] [Bug #9300]
+
+	* ext/psych/lib/psych.rb: fixed missing require.
+
+	* test/psych/test_string.rb: test
+
+Thu Jan  9 09:51:00 2014  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/to_ruby.rb: anonymous structs
+	  should be able to roundtrip.  Thanks @splattael!
+
+	* test/psych/test_object_references.rb: test for change
+
+Wed Jan  8 22:53:16 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_insnhelper.c (vm_search_super_method): when super called in a
+	  bound UnboundMethod generated from a module, no superclass is
+	  found since the current defined class is the module, then call
+	  method_missing in that case.  [ruby-core:59619] [Bug #9377]
+
+Wed Jan  8 15:55:21 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (rb_objid_hash): return hash value from object ID with a
+	  salt, extract from rb_any_hash().
+
+	* object.c (rb_obj_hash): return same value as rb_any_hash().
+	  fix r44125.  [ruby-core:59638] [Bug #9381]
+
+Wed Jan  8 13:12:41 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/timeout.rb (Timeout::ExitException.catch): pass arguments
+	  for new instance.
+
+	* lib/timeout.rb (Timeout::ExitException#exception): fallback to
+	  Timeout::Error if couldn't throw.  [ruby-dev:47872] [Bug #9380]
+
+	* lib/timeout.rb (Timeout#timeout): initialize ExitException with
+	  message for the fallback case.
+
+Tue Jan  7 12:43:06 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/timeout.rb (Timeout#timeout): should not rescue ordinarily
+	  raised ExitException, which should not be thrown.
+
+	* lib/timeout.rb (Timeout::ExitException.catch): set @thread only if
+	  it ought to be caught.
+
+	* lib/timeout.rb (Timeout#timeout): when a custom exception is given,
+	  no instance is needed to be caught, so defer creating new instance
+	  until it is raised.  [ruby-core:59511] [Bug #9354]
+
+Tue Jan  7 10:16:02 2014  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master 21e409d / RubyGems 2.2.1.
+
+	  See http://rubygems.rubyforge.org/rubygems-update/History_txt.html
+	  for a list of bug fixes.
+
+	* test/rubygems:  ditto.
+
+Tue Jan  7 10:10:46 2014  Eric Wong <e@80x24.org>
+
+	* ext/json/generator/depend: add build dependencies for json extension
+	  [Bug #9374] [ruby-core:59609]
+	* ext/json/parser/depend: ditto
+
+Tue Jan  7 04:35:46 2014  Aman Gupta <ruby@tmm1.net>
+
+	* array.c (ary_add_hash): Fix consistency issue between Array#uniq and
+	  Array#uniq! [Bug #9340] [ruby-core:59457]
+	* test/ruby/test_array.rb (class TestArray): regression test for above.
+
+Mon Jan  6 21:28:48 2014  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* .gitignore: ignore *-fake.rb generated even when CROSS_COMPILING = no
+	  since r42862.
+
+Sun Jan  5 20:14:14 2014  Benoit Daloze  <eregontp@gmail.com>
+
+	* compar.c (cmp_equal): remove error hiding in Comparable#==.
+	  Comparable#== no longer rescues exceptions silently.
+	  This was the cause of quite a couple bugs. See #7688. [EXPERIMENTAL]
+
+	* test/ruby/test_comparable.rb: adapt assertion to match new behavior.
+
+	* lib/rdoc/method_attr.rb: fix bugs discovered by this change.
+
+	* test/rdoc/test_rdoc_normal_class.rb: fix bugs in tests.
+
+Sat Jan  4 22:44:00 2014  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* struct.c (rb_struct_set): return assigned value from setter method
+	  rather than struct object. [Bug #9353] [ruby-core:59509]
+
+	* test/ruby/test_struct.rb (test_setter_method_returns_value): add test
+
+Sat Jan  4 21:44:31 2014  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* test/ruby/test_gc.rb (TestGc#test_latest_gc_info): use
+	  GC.stat(:key) instead of GC.stat.
+
+Sat Jan  4 19:15:29 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/socket/socket.c (rsock_syserr_fail_host_port): use format flags,
+	  '+' to inspect, ' ' to quote unprintables.
+
+	* ext/socket/socket.c (rsock_syserr_fail_path): ditto.
+
+	* ext/socket/socket.c (rsock_syserr_fail_raddrinfo): ditto.
+
+	* ext/socket/socket.c (rsock_syserr_fail_host_port): add errno
+	  argument version and use rb_syserr_fail_str() instead of
+	  rb_sys_fail_str() with restoring errno.
+
+	* ext/socket/socket.c (rsock_syserr_fail_path): ditto, and
+	  rb_syserr_fail().
+
+	* ext/socket/socket.c (rsock_sys_fail_sockaddr): ditto, use
+	  rsock_syserr_fail_raddrinfo().
+
+	* ext/socket/socket.c (rsock_sys_fail_raddrinfo): ditto.
+
+	* ext/socket/socket.c (setup_domain_and_type): ditto.
+
+Sat Jan  4 17:18:58 2014  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* vm.c (RubyVM::OPTS): get rid of a garbage character.
+
+Sat Jan  4 10:17:54 2014  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rinda/ring.rb (Rinda::RingFinger#make_socket):  Use
+	  ipv4_multicast_ttl option for portability.
+
+Sat Jan  4 10:15:47 2014  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rinda/ring.rb (Rinda::RingFinger#make_socket):  Use
+	  ipv4_multicast_loop option for portability.  Patch by Jeremy Evans.
+	  [ruby-trunk - Bug #9351]
+
+Fri Jan  3 19:09:00 2014  Eric Wong  <normalperson@yhbt.net>
+
+	* ext/socket/socket.c (rsock_sys_fail_host_port): save and restore errno
+	  before calling rb_sys_fail_str to prevent [BUG] errno == 0.
+	  Patch by Eric Wong. [ruby-core:59498] [Bug #9352]
+
+	* ext/socket/socket.c (rsock_sys_fail_path): ditto
+	* ext/socket/socket.c (rsock_sys_fail_sockaddr): ditto
+	* ext/socket/socket.c (rsock_sys_fail_raddrinfo): ditto
+	* ext/socket/socket.c (rsock_sys_fail_raddrinfo_or_sockaddr): ditto
+
+Fri Jan  3 10:43:57 2014  Aman Gupta <ruby@tmm1.net>
+
+	* test/net/imap/cacert.pem: generate new CA cert, since the last one
+	  expired. [Bug #9341] [ruby-core:59459]
+	* test/net/imap/server.crt: new server cert signed with updated CA.
+	* test/net/imap/Makefile: add `make regen_certs` to automate this
+	  process.
+
+Fri Jan  3 00:09:54 2014  Benoit Daloze  <eregontp@gmail.com>
+
+	* ext/bigdecimal: update class method call style from :: to .
+	  in documentation and usage.
+
+	* ext/bigdecimal/lib/bigdecimal/math.rb: [DOC] fix examples values.
+	  Computations were made using ruby 2.0.0p247 to ensure
+	  no effect of the recent BigDecimal bug.
+
+	* ext/bigdecimal/sample/nlsolve.rb: fix indent.
+
+Thu Jan  2 16:07:21 2014  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* io.c (io_fwrite): freeze converted str.
+
+Thu Jan  2 04:15:13 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval.c (rb_longjmp): remove an extra modifier from the forward
+	  declaration to match the actual definition.  [ruby-core:59451]
+	  [Bug #9338]
+
+Thu Jan  2 01:23:30 2014  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* vm_eval.c (method_missing): use ALLOCV_N() instead of
+	  ALLOCA_N() and rb_ary_tmp_new().
+
+Thu Jan  2 00:53:16 2014  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* array.c (rb_ary_zip): use ALLOCV_N() instead of ALLOCA_N().
+
+Thu Jan  2 00:04:29 2014  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* hash.c (rb_hash_keys): make rb_hash_keys() static.
+	  it is no longer used from array.c since r43969.
+	  the patch is from normalperson (Eric Wong).
+	  [ruby-core:59449] [Feature #9336]
+
+	* internal.h: remove definition of rb_hash_keys().
+
+Wed Jan  1 18:19:35 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: reset LDFLAGS and DLDFLAGS for opt-dir again after
+	  LIBPATHFLAG and RPATHFLAG are set.  [ruby-dev:47868] [Bug #9317]
+
+Wed Jan  1 11:12:29 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: use SSE2 instructions for drop unexpected
+	  precisions.  [ruby-core:54738] [Bug #8358]
+
+Tue Dec 31 23:49:07 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval.c (rb_f_raise): add cause: optional keyword argument.
+	  [ruby-core:58610] [Feature #8257] [EXPERIMENTAL]
+
+Tue Dec 31 21:44:17 2013  Akio Tajima <artonx@yahoo.co.jp>
+
+	* win32/Makefile.sub: remove HAVE_FSEEKO because fseeko removed from win32/win32.c
+	  Fixed [Bug #9333].
+
+Tue Dec 31 21:02:27 2013  Masaki Matsushita  <glass.saga@gmail.com>
+
+	* io.c (io_fwrite): allocate frozen str only when str is not converted.
+
+Tue Dec 31 15:44:48 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (RbConfig): expand RUBY_SO_NAME for extensions
+	  backward compatibility.  [ruby-core:59426] [Bug #9329]
+
+Mon Dec 30 23:33:07 2013  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* variable.c: [DOC] adding extra example in docs.
+	  patched by Steve Klabnik. [Bug #9210]
+
+Mon Dec 30 18:34:18 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* encoding.c (must_encindex, rb_enc_from_index, rb_obj_encoding): mask
+	  encoding index and ignore dummy flags.  [ruby-core:59354] [Bug #9314]
+
+Mon Dec 30 16:11:52 2013  WATANABE Hirofumi  <eban@ruby-lang.org>
+
+	* tool/make-snapshot: needs CXXFLAGS.  [ruby-core:59393][Bug #9320]
+
+Sun Dec 29 18:36:54 2013  Shota Fukumori  <her@sorah.jp>
+
+	* lib/mkmf.rb (configuration): Make CXXFLAGS customizable.
+	  Patch by Kohei Suzuki (eagletmt). [Fixes GH-492]
+
+Sun Dec 29 12:11:11 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (mnew_from_me): keep iclass as-is, to make inheritance
+	  chain consistent.  [ruby-core:59358] [Bug #9315]
+
+	* proc.c (method_owner): return the original defined_class from
+	  prepended iclass, instead.
+
+Sun Dec 29 08:47:24 2013  Lucas Allan Amorim  <lucas.allan@gmail.com>
+
+	* test/ruby/test_sprintf.rb (test_hash): Added tests for sprintf
+	  with a hash as parameter.  [Fixes GH-491]
+
+Sun Dec 29 07:27:51 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* compar.c (cmp_eq_recursive): Fix the return value, the value for
+	  failed #<=> should be nil. It was raising a NoMethodError for
+	  the test case TestComparable#test_no_cmp (undefined method `>'
+	  for false:FalseClass). Yet one more reason for #7688.
+
+Sat Dec 28 22:21:59 2013  Benoit Daloze  <eregontp@gmail.com>
+
+	* object.c (Kernel#<=>) surround Comparable operators with <code> tags.
+	  The #== method was hidden in ri/rdoc's output and was highlighting
+	  the line instead.
+
+Sat Dec 28 17:24:00 2013  DV Suresh  <e@dvsuresh.me>
+
+	* benchmark/bm_so_meteor_contest.rb: [DOC] Fix a few typos
+	* ext/fiddle/lib/fiddle/import.rb: ditto
+	* ext/psych/lib/psych.rb: ditto
+	* ext/psych/lib/psych/nodes/sequence.rb: ditto
+	* ext/tk/lib/multi-tk.rb: ditto
+	* ext/tk/lib/tcltk.rb: ditto
+
+Sat Dec 28 00:42:37 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (local_push_gen, local_pop_gen): save cmdarg_stack to
+	  isolate command argument state from outer scope.
+	  [ruby-core:59342] [Bug #9308]
+
+Fri Dec 27 13:25:03 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/{setup.mak,Makefile.sub}: update fake.rb like
+	  template/fake.rb.in.
+
+Thu Dec 26 16:10:41 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/Makefile.sub (fake.rb): should depend on version.h because
+	  if RUBY_VERSION is updated, fake.rb need to say the new version
+	  to avoid install error in rbconfig.rb.
+
+Thu Dec 26 14:25:03 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (HASH_REJECT_COPY_EXTRA_STATES): turn off the old
+	  behavior, copying extra states by accident.
+
+Thu Dec 26 10:49:14 2013  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* version.h (RUBY_VERSION): 2.2.0 development has started.
+
+Thu Dec 26 10:27:53 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* tool/merger.rb (tag): support 2.1.1 semi-automatic tagging and 2.2.0
+	  explicit tagging.
+
+Thu Dec 26 06:35:25 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* proc.c: Having any mandatory keyword argument increases min arity
+	  [#9299]
+
+Thu Dec 26 06:27:08 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* proc.c: Having optional keyword arguments makes maximum arity +1,
+	  not unlimited [#8072]
+
+Thu Dec 26 01:09:57 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* tool/release.sh: make symbolic links.
+
+Thu Dec 26 00:45:33 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* tool/make-snapshot: support new version scheme.
+
+Wed Dec 25 22:44:14 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_set_arguments): set arg_keyword_check from
+	  nd_cflag, which is set by parser.  internal ID is used for
+	  unnamed keyword rest argument, which should be separated from no
+	  keyword check.
+
+	* iseq.c (rb_iseq_parameters): if no keyword check, keyword rest is
+	  present.
+
+	* parse.y (new_args_tail_gen): set keywords check to nd_cflag, which
+	  equals to that keyword rest is not present.
+
+Wed Dec 25 22:32:19 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/abbrev.rb: [DOC] rdoc format patch by Giorgos Tsiftsis [Bug #9146]
+
+Wed Dec 25 20:30:10 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* iseq.c (rb_iseq_parameters): push argument type symbol only for
+	  unnamed rest keywords argument.
+
+Wed Dec 25 20:28:48 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (rb_iseq_min_max_arity): maximum argument is unlimited if
+	  having rest keywords argument.  [ruby-core:53298] [Bug #8072]
+
+Wed Dec 25 18:29:22 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* vm_insnhelper.c (argument_error): insert dummy frame to make
+	  a backtrace object intead of modify backtrace string array.
+	  [Bug #9295]
+
+	* test/ruby/test_backtrace.rb: add a test for this patch.
+	  fix test to compare a result of Exception#backtrace with
+	  a result of Exception#backtrace_locations.
+
+Wed Dec 25 13:00:54 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: let mingw do something black-magic, and check if
+	  _gmtime64_s() is available actually.
+
+	* win32/win32.c (gmtime_s, localtime_s): use _gmtime64_s() and
+	  _localtime64_s() if available, not depending on very confusing
+	  mingw variants macros.  based on the patch by phasis68 (Heesob
+	  Park) at [ruby-core:58764].  [ruby-core:58391] [Bug #9119]
+
+Wed Dec 25 12:33:41 2013  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* sample/trick2013/: added the award-winning entries of TRICK 2013.
+	  See https://github.com/tric/trick2013 for the contest outline.
+	  (Matz has approved the attachment.)
+
+Wed Dec 25 10:42:02 2013  Yamashita Yuu  <yamashita@geishatokyo.com>
+
+	* ext/openssl/ossl_ssl.c (Init_ossl_ssl): Declare a constant
+	  `OP_MSIE_SSLV2_RSA_PADDING` only if the macro is defined.  The
+	  `SSL_OP_MSIE_SSLV2_RSA_PADDING` has been removed from latest
+	  snapshot of OpenSSL 1.0.1.  [Fixes GH-488]
+
+Wed Dec 25 01:03:00 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (bind_local_variables): allowing binding to list its
+	  local variables.  patch by Jack Danger Canty <jackdanger AT
+	  squareup.com> at [ruby-core:56543].  [Feature #8773]
+
+Tue Dec 24 23:20:38 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/fileutils/fileasserts.rb (assert_ownership_user): new
+	  assertion for user ownership.
+
+	* test/fileutils/test_fileutils.rb (test_chown_error),
+	  (test_chown_without_permission, test_chown_with_root):
+	  based on the patch by vajrasky (Vajrasky Kok) at
+	  [ruby-core:59298].  [Feature #9292]
+
+Tue Dec 24 16:28:05 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (rb_mod_define_method): consider visibility only if self
+	  in the caller is same as the receiver, otherwise make public as
+	  well as old behavior.  [ruby-core:57747] [Bug #9005]
+	  [ruby-core:58497] [Bug #9141]
+
+	* vm.c (rb_vm_cref_in_context): return ruby level cref if self is
+	  same.
+
+Tue Dec 24 14:13:14 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* README.EXT: add a refer to URL.
+
+Tue Dec 24 13:48:45 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* README.EXT: add a document about RGenGC.
+	  Reviewed by havenwood.
+	  [misc #8962]
+
+	* README.EXT.ja: ditto.
+
+Tue Dec 24 12:11:43 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/ruby.h (RARRAY_ASET): try to avoid compiler warning.
+	  [Bug #9287]
+
+Tue Dec 24 05:04:56 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/fileutils/test_fileutils.rb (setup): should not call
+	  Process.groups for Windows.  get rid of many errors introduced by
+	  r44364.
+
+Mon Dec 23 18:37:16 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/fileutils/fileasserts.rb (assert_ownership_group): new
+	  assertion for group ownership.
+
+	* test/fileutils/test_fileutils.rb (test_chown{,_verbose,_noop}):
+	  based on the patch by vajrasky (Vajrasky Kok) at
+	  [ruby-core:59281].  [Feature #9286]
+
+Mon Dec 23 15:53:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (HAS_EXTRA_STATES): warn extra states only when something
+	  differ.  [ruby-core:59254] [Bug #9275]
+
+Mon Dec 23 12:42:13 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
+
+	* array.c: Have to_h raise on elements that are not key-value pairs
+	  [#9239]
+
+	* enum.c: ditto
+
+Mon Dec 23 05:01:55 2013  Zachary Scott  <e@zzak.io>
+
+	* doc/syntax/methods.rdoc: [DOC] Added example for underscore
+	  conventions in method names. Also added doc to clarify encoding
+	  character set support for Ruby programs and elaborated on defining
+	  predicate and bang methods. Based on a patch by @gaurish
+	  [Fixes GH-477] https://github.com/ruby/ruby/pull/477
+
+Mon Dec 23 03:18:09 2013  Zachary Scott  <e@zzak.io>
+
+	* doc/ChangeLog-1.9.3: [DOC] Fix typos by @dvsuresh
+	  [Fixes GH-485] https://github.com/ruby/ruby/pull/485
+	* ext/openssl/ossl_config.c: ditto
+	* lib/rss/utils.rb, lib/time.rb: ditto
+	* test/ruby/envutil.rb: ditto
+
+Sun Dec 22 23:56:56 2013  Zachary Scott  <e@zzak.io>
+
+	* lib/{rake,rdoc,rss}/*, test/rexml/test_listener.rb: [DOC] Fix typos
+	  by @dvsuresh [Fixes GH-486] https://github.com/ruby/ruby/pull/486
+
+Sun Dec 22 11:08:47 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* test/rubygems/test_gem_ext_builder.rb:  Fix warning due to ambiguous
+	  expression.
+
+Sun Dec 22 11:05:53 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems/commands/install_command.rb:  Restore gem install
+	  --ignore-dependencies for remote gems
+	* test/rubygems/test_gem_commands_install_command.rb:  Test for the
+	  above.
+
+Sun Dec 22 10:23:40 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rdoc.rb:  Set RDoc to release version.
+
+Sun Dec 22 10:19:07 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems.rb:  Set RubyGems to release version.
+
+Sun Dec 22 10:16:08 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems.rb (module Gem):  Fix comment for
+	  Gem::load_path_insert_index.
+
+Sun Dec 22 04:07:55 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (ruby_gc_set_params): don't show obsolete warnings for
+	  RUBY_FREE_MIN/RUBY_HEAP_MIN_SLOTS if
+	  RUBY_GC_HEAP_FREE_SLOTS/RUBY_GC_HEAP_INIT_SLOTS are given.
+	  [Bug #9276]
+
+Sat Dec 21 13:00:20 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c: remove unnecessary the source path from EEXIST error
+	  messages and show the destination path only.  [ruby-core:59202]
+	  [Feature #9263]
+
+Sat Dec 21 12:37:19 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/resolv.rb (Resolv::Hosts#lazy_initialize): should not
+	  consider encodings in hosts file.  [ruby-core:59239] [Bug #9273]
+
+	* lib/resolv.rb (Resolv::Config.parse_resolv_conf): ditto.
+
+Sat Dec 21 05:43:27 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* tool/make-snapshot: replace RUBY_PATCHLEVEL_STR in version.h to
+	  show users that this ruby is a preview/rc version.
+
+Sat Dec 21 05:03:49 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/Makefile.sub (fake.rb): fixed wrong RUBY_PLATFORM, to correctly
+	  install win32.h.
+	  [ruby-core:58801][Bug #9199] reported by arton.
+
+For the changes before 2.1.0, see doc/ChangeLog-2.1.0
+For the changes before 2.0.0, see doc/ChangeLog-2.0.0
+For the changes before 1.9.3, see doc/ChangeLog-1.9.3
+For the changes before 1.8.0, see doc/ChangeLog-1.8.0
+
+Local variables:
+coding: us-ascii
+add-log-time-format: (lambda ()
+  (let* ((time (current-time))
+	 (system-time-locale "C")
+	 (diff (+ (cadr time) 32400))
+	 (lo (% diff 65536))
+	 (hi (+ (car time) (/ diff 65536))))
+  (format-time-string "%a %b %e %H:%M:%S %Y" (list hi lo) t)))
+indent-tabs-mode: t
+tab-width: 8
+change-log-indent-text: 2
+end:
+vim: tabstop=8 shiftwidth=2
diff --git a/doc/ChangeLog-YARV b/doc/ChangeLog-YARV
index cbc51c5593..6a6cfbd0c9 100644
--- a/doc/ChangeLog-YARV
+++ b/doc/ChangeLog-YARV
@@ -86,7 +86,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 	* blockinlining.c, compile.c, compile.h, debug.c, debug.h,
 	insnhelper.h, insns.def, iseq.c, thread.c, thread_pthread.ci,
 	thread_pthread.h, thread_win32.ci, thread_win32.h, vm.c, vm.h,
-	vm_dump.c, vm_evalbody.ci,  vm_opts.h.base,  yarv.h, 
+	vm_dump.c, vm_evalbody.ci,  vm_opts.h.base,  yarv.h,
 	yarv_version.h, yarvcore.c, yarvcore.h :
 	add a header includes copyright
 
@@ -110,7 +110,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* signal.c : ditto
 
-	* test/ruby/test_signal.rb : 
+	* test/ruby/test_signal.rb :
 
 	* thread_pthread.ci : rename timer thread functions
 
@@ -203,7 +203,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* ext/dbm, dl, gdbm, iconv, io, pty, sdbm : added
 
-	* test/dbm, gdbm, io, logger, net, readline, sdbm, soap, 
+	* test/dbm, gdbm, io, logger, net, readline, sdbm, soap,
 	  webrick, win32ole, wsdl, xsd : added
 
 
@@ -652,7 +652,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
         * vm.c : ditto
 
-        * yarvcore.c : prohibit tail call optimization to mark 
+        * yarvcore.c : prohibit tail call optimization to mark
 	iseq object
 
         * yarvcore.h : add some allocator function declaration
@@ -906,7 +906,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* yarvcore.h : disable to use get/setcontext
 
-	* lib/webrick/server.rb : add experimental implementation 
+	* lib/webrick/server.rb : add experimental implementation
 	using thraeds pool
 
 
@@ -1447,7 +1447,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* insns.def : ditto
 
-	* vm_dump.c : 
+	* vm_dump.c :
 
 	* intern.h : change rb_thread_signal_raise/exit interface
 
@@ -2060,7 +2060,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 2006-02-15(Wed) 17:39:16 +0900  Koichi Sasada  <ko1@atdot.net>
 
-	* eval_intern.h : 
+	* eval_intern.h :
 
 	* eval_jump.h, vm.c : localjump_error() and jump_tag_but_local_jump()
 	move to th_localjump_error and th_jump_tag_but_local_jump at vm.c
@@ -2428,7 +2428,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 2006-02-14(Tue) 05:53:56 +0900  Minero Aoki  <aamine@loveruby.net>
 
 	* eval.c (ruby_cleanup): th->errinfo contains a NODE while
-	  break'ing, check it before refering klass.
+	  break'ing, check it before referring klass.
 
 
 2006-02-14(Tue) 05:45:07 +0900  Koichi Sasada  <ko1@atdot.net>
@@ -2461,7 +2461,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 2006-02-14(Tue) 01:42:11 +0900  Koichi Sasada  <ko1@atdot.net>
 
-	* error.c : fix include file positon
+	* error.c : fix include file position
 
 	* test/ruby/test_signal.rb : skip test_exit_action on cygwin
 
@@ -2618,123 +2618,123 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* array.c : revert last commit
 
-	* ascii.c : ditto 
+	* ascii.c : ditto
 
-	* bignum.c : ditto 
+	* bignum.c : ditto
 
-	* class.c : ditto 
+	* class.c : ditto
 
-	* compar.c : ditto 
+	* compar.c : ditto
 
-	* defines.h : ditto 
+	* defines.h : ditto
 
-	* dir.c : ditto 
+	* dir.c : ditto
 
-	* dln.c : ditto 
+	* dln.c : ditto
 
-	* dln.h : ditto 
+	* dln.h : ditto
 
-	* enum.c : ditto 
+	* enum.c : ditto
 
-	* enumerator.c : ditto 
+	* enumerator.c : ditto
 
-	* error.c : ditto 
+	* error.c : ditto
 
-	* euc_jp.c : ditto 
+	* euc_jp.c : ditto
 
-	* file.c : ditto 
+	* file.c : ditto
 
-	* gc.c : ditto 
+	* gc.c : ditto
 
-	* hash.c : ditto 
+	* hash.c : ditto
 
-	* intern.h : ditto 
+	* intern.h : ditto
 
-	* io.c : ditto 
+	* io.c : ditto
 
-	* lex.c : ditto 
+	* lex.c : ditto
 
-	* main.c : ditto 
+	* main.c : ditto
 
-	* marshal.c : ditto 
+	* marshal.c : ditto
 
-	* math.c : ditto 
+	* math.c : ditto
 
-	* missing.h : ditto 
+	* missing.h : ditto
 
-	* node.h : ditto 
+	* node.h : ditto
 
-	* numeric.c : ditto 
+	* numeric.c : ditto
 
-	* object.c : ditto 
+	* object.c : ditto
 
-	* oniguruma.h : ditto 
+	* oniguruma.h : ditto
 
-	* pack.c : ditto 
+	* pack.c : ditto
 
-	* prec.c : ditto 
+	* prec.c : ditto
 
-	* process.c : ditto 
+	* process.c : ditto
 
-	* random.c : ditto 
+	* random.c : ditto
 
-	* range.c : ditto 
+	* range.c : ditto
 
-	* rb/mklog.rb : ditto 
+	* rb/mklog.rb : ditto
 
-	* re.c : ditto 
+	* re.c : ditto
 
-	* regcomp.c : ditto 
+	* regcomp.c : ditto
 
-	* regenc.c : ditto 
+	* regenc.c : ditto
 
-	* regenc.h : ditto 
+	* regenc.h : ditto
 
-	* regerror.c : ditto 
+	* regerror.c : ditto
 
-	* regex.h : ditto 
+	* regex.h : ditto
 
-	* regexec.c : ditto 
+	* regexec.c : ditto
 
-	* regint.h : ditto 
+	* regint.h : ditto
 
-	* regparse.c : ditto 
+	* regparse.c : ditto
 
-	* regparse.h : ditto 
+	* regparse.h : ditto
 
-	* ruby.c : ditto 
+	* ruby.c : ditto
 
-	* ruby.h : ditto 
+	* ruby.h : ditto
 
-	* rubyio.h : ditto 
+	* rubyio.h : ditto
 
-	* rubysig.h : ditto 
+	* rubysig.h : ditto
 
-	* signal.c : ditto 
+	* signal.c : ditto
 
-	* sjis.c : ditto 
+	* sjis.c : ditto
 
-	* sprintf.c : ditto 
+	* sprintf.c : ditto
 
-	* st.c : ditto 
+	* st.c : ditto
 
-	* st.h : ditto 
+	* st.h : ditto
 
-	* string.c : ditto 
+	* string.c : ditto
 
-	* struct.c : ditto 
+	* struct.c : ditto
 
-	* time.c : ditto 
+	* time.c : ditto
 
-	* utf8.c : ditto 
+	* utf8.c : ditto
 
-	* util.c : ditto 
+	* util.c : ditto
 
-	* util.h : ditto 
+	* util.h : ditto
 
-	* variable.c : ditto 
+	* variable.c : ditto
 
-	* version.c : ditto 
+	* version.c : ditto
 
 
 2006-02-12(Sun) 21:33:10 +0900  Koichi Sasada  <ko1@atdot.net>
@@ -3151,7 +3151,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 2006-02-12(Sun) 05:05:02 +0900  Koichi Sasada  <ko1@atdot.net>
 
 	* eval.c, eval_intern.h, eval_load.c, eval_proc.c, node.h,
-	insnhelper.h, insns.def, vm.c, yarvcore.c, yarvcore.h : 
+	insnhelper.h, insns.def, vm.c, yarvcore.c, yarvcore.h :
 	change cref data structure and unify ruby_class and ruby_cbase
 	and some refoctoring
 
@@ -3810,7 +3810,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* yarvtest/test_eval.rb : added
 
-	* yarvtest/test_proc.rb : 
+	* yarvtest/test_proc.rb :
 
 
 2005-12-29(Thu) 12:27:12 +0900  Koichi Sasada  <ko1@atdot.net>
@@ -4091,7 +4091,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 2005-12-25(Sun) 01:45:55 +0900  Koichi Sasada  <ko1@atdot.net>
 
-	* insns.def, compile.c, rb/insns2vm.rb, template/insns_info.inc.tmpl : 
+	* insns.def, compile.c, rb/insns2vm.rb, template/insns_info.inc.tmpl :
 	trace stack depth at compile time
 	and use it  as cont_sp for exception handling
 
@@ -4167,7 +4167,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* compile.c, yarvcore.h : support all defined?() syntax
 
-	* compile.c : fix NODE_COLON2 
+	* compile.c : fix NODE_COLON2
 
 	* yarvtest/test_bin.rb : add or fix tests for above
 
@@ -4278,7 +4278,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* insns.def : remove logic for zsuper
 
-	* template/optinsn.inc.tmpl : 
+	* template/optinsn.inc.tmpl :
 
 	* vm.c : remove thread_yield_light_prepare, thread_yield_light_invoke
 
@@ -4292,7 +4292,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 	* array.c, numeric.c, range.c : add prototype of
 	block inlining function
 
-	* blockinlining.c, vm_opts.h.base : add block inlining flag 
+	* blockinlining.c, vm_opts.h.base : add block inlining flag
 
 	* common.mk, debug.h, debug.c : add debug_breakpoint() for gdb
 
@@ -4328,7 +4328,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* vm.c : fix to skip pushing value at "next"
 
-	* yarvcore.h : move definision of 
+	* yarvcore.h : move definition of
 	"struct iseq_compile_data_ensure_node_stack" to compile.c
 
 	* compile.c : fix ensure catch table creation
@@ -4390,7 +4390,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 2005-11-29(Tue) 16:39:07 +0900  Koichi Sasada  <ko1@atdot.net>
 
-	* eval.c, eval_proc.c, vm.c, vm_macro.def : 
+	* eval.c, eval_proc.c, vm.c, vm_macro.def :
 	support define_method and invoke NODE_BMETHOD method
 
 
@@ -4478,7 +4478,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 	* debug.c : add debug_v() and change to use only printf
 	on debug_id()
 
-	* sample/test.rb : 
+	* sample/test.rb :
 
 	* vm.c : fix make_proc_from_block
 
@@ -4539,7 +4539,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* eval.c : support rb_frame_pop() and rb_frame_callee(),
 	add rb_sourcefile(), rb_sourceline(),
-	
+
 
 	* compile.c : support postposition while/until,
 	fix block parameter index
@@ -4582,7 +4582,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* benchmark/other-lang/eval.rb : fix path
 
-	* lib/English.rb, lib/cgi.rb, lib/complex.rb, lib/delegate.rb : 
+	* lib/English.rb, lib/cgi.rb, lib/complex.rb, lib/delegate.rb :
 	added
 
 
@@ -4712,7 +4712,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 2005-10-05(Wed) 21:20:13 +0900  Koichi Sasada  <ko1@atdot.net>
 
-	* eva.c, eval_thread.c, ruby.h, eval_error.h, eval_jump.h, 
+	* eva.c, eval_thread.c, ruby.h, eval_error.h, eval_jump.h,
 	eval_load.c, thread.c, error.c, compile.h : remove ruby_errinfo
 
 	* thread_win32.h, thread_pthread.h : set stack size to 4KB
@@ -4795,7 +4795,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* thread.c, common.mk : add thread.c
 
-	* thread.c, gc.c, eval_thread.c, yarvcore.c, yarvcore.h : 
+	* thread.c, gc.c, eval_thread.c, yarvcore.c, yarvcore.h :
 	support native thread (on pthread)
 
 	* insns.def : add YARV_CHECK_INTS() check
@@ -5322,7 +5322,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* yarvcore.c, yarvcore.h : remove cYarvThrowObject (unused)
 
-	* yarvcore.c, yarvcore.h, insns.def : 
+	* yarvcore.c, yarvcore.h, insns.def :
 	thread_object#stack_mark_poinetr
 
 	* depend, rb/eval.rb : BOPT, TOPT -> OPT
@@ -5394,7 +5394,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* tmpl/vmtc.inc.tmpl : add const prefix
 
-	* /rb/asm_parse.rb, extconf.rb : added and make assembler analised output 
+	* /rb/asm_parse.rb, extconf.rb : added and make assembler analised output
 
 	* opt_operand.def : add send operands unification
 
@@ -5493,7 +5493,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* depend : adde reconf rule
 
-	* insnhelper.h : 
+	* insnhelper.h :
 
 	* vm_evalbody.inc : rename to vm_evalbody.h
 
@@ -5711,7 +5711,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* yarvcore.h : make type "struct iseq_compile_data"
 
-	* yarvcore.h : iseq_object#insn_info_ary to iseq_object#insn_info_tbl 
+	* yarvcore.h : iseq_object#insn_info_ary to iseq_object#insn_info_tbl
 
 
 2005-02-21(Mon) 05:24:01 +0900  Koichi Sasada  <ko1@atdot.net>
@@ -5736,7 +5736,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* test/test_method.rb : add tests for above
 
-	* insns.def : opt_ltlt and 
+	* insns.def : opt_ltlt and
 
 
 2005-02-18(Fri) 08:54:40 +0900  Koichi Sasada  <ko1@atdot.net>
@@ -5770,7 +5770,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* yarvcore.h, insns.def, compile.c : support defined? expression (limited)
 
-	* test/test_syn.rb : tests for above is added 
+	* test/test_syn.rb : tests for above is added
 
 	* compile.c, insns.def : support block passed method dispatch
 
@@ -6002,7 +6002,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* vm.c (thread_dump_regs) : added
 
-	* vm.c (thread_call0, thread_call0_cfunc, thread_invoke_yield, 
+	* vm.c (thread_call0, thread_call0_cfunc, thread_invoke_yield,
 	thread_invoke_yield_cfunc), insns.def (yield, send) :
 	fixed, added to support IFUNC
 
@@ -6168,7 +6168,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* test.rb : restore $" after evaluation with ruby
 
-	* rb/insns2vm.rb : remove unnecesary each
+	* rb/insns2vm.rb : remove unnecessary each
 
 
 2004-12-17(Fri) 18:56:38 +0900  Koichi Sasada  <ko1@atdot.net>
@@ -6322,7 +6322,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 2004-12-02(Thu) 13:20:41 +0900  Koichi Sasada  <ko1@atdot.net>
 
 	* yarvcore.c, vm.h, vm.c, insns.def, insnhelper.h, yarvutil.rb :
-	add usage analisys framework 
+	add usage analisys framework
 
 	* disasm.c : insn_operand_intern to separate function
 
@@ -6397,7 +6397,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* vm.c : fix stack dump routine
 
-	* vm.c : impliment thread_funcall (temporarily)
+	* vm.c : implement thread_funcall (temporarily)
 
 	* yarv.h : add IS_YARV_WORKING(), SET_YARV_START(), SET_YARV_STOP()
 
@@ -6433,7 +6433,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 	* yarv.h : added
 
-	* yarvcore.c, yarv.h : support yarv_is_working, yarv_block_given_p, 
+	* yarvcore.c, yarv.h : support yarv_is_working, yarv_block_given_p,
 	yarv_yield, yarv_funcall (only dummy function)
 
 	* vm.c : thread_eval_body changed return value
@@ -6488,7 +6488,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 
 2004-11-01(Mon) 04:45:54 +0900  Koichi Sasada  <ko1@atdot.net>
 
-	* yarvcore.h, compile.c, debug.c, version.h : 
+	* yarvcore.h, compile.c, debug.c, version.h :
 	redesgin gc debug scheme (GC_CHECK())
 
 	* yarvcore.c : mark iseqobj->current_block on GC
@@ -6590,7 +6590,7 @@ Sun Dec 31 17:42:05 2006  Koichi Sasada  <ko1@atdot.net>
 	* yarvcore.h, yarvcore.c : add idThrow*
 
 	* insns.def, compile.c, vm.c : support retry, break,
-	next, redo, return(imcomplete)
+	next, redo, return(incomplete)
 
 
 2004-09-03(Fri) 13:40:08 +0900  Koichi Sasada  <ko1@atdot.net>
diff --git a/doc/NEWS-1.8.7 b/doc/NEWS-1.8.7
index 51fb5f1c6a..38571fe103 100644
--- a/doc/NEWS-1.8.7
+++ b/doc/NEWS-1.8.7
@@ -230,7 +230,7 @@ with all sufficient information, see the ChangeLog file.
   * ARGF.lines
   * ARGF.readbyte
 
-    New methods. 
+    New methods.
 
   * Method#name
   * Method#owner
@@ -638,7 +638,7 @@ with all sufficient information, see the ChangeLog file.
       md = Digest::MD5.new("string")
       # After (works with any version)
       md = Digest::MD5.new.update("string")
-        
+
       # Before
       hd = Digest::MD5.new("string").hexdigest
       # After (works with any version)
diff --git a/doc/NEWS-2.0.0 b/doc/NEWS-2.0.0
new file mode 100644
index 0000000000..9ad7254317
--- /dev/null
+++ b/doc/NEWS-2.0.0
@@ -0,0 +1,531 @@
+# -*- rdoc -*-
+
+= NEWS for Ruby 2.0.0
+
+This document is a list of user visible feature changes made between
+releases except for bug fixes.
+
+Note that each entry is kept so brief that no reason behind or
+reference information is supplied with.  For a full list of changes
+with all sufficient information, see the ChangeLog file.
+
+== Changes since the 1.9.3 release
+
+=== Language changes
+
+* Added keyword arguments.
+
+* Added %i and %I for symbol list creation (similar to %w and %W).
+
+* Default source encoding is changed to UTF-8. (was US-ASCII)
+
+* No warning for unused variables starting with '_'
+
+=== Core classes updates (outstanding ones only)
+
+* ARGF
+  * added method:
+    * added ARGF#codepoints and ARGF#each_codepoint, like the corresponding
+      methods for IO.
+
+* Array
+  * added method:
+    * added Array#bsearch for binary search.
+  * incompatible changes:
+    * random parameter of Array#shuffle! and Array#sample now
+      will be called with one argument, maximum value.
+    * when given Range arguments, Array#values_at now returns nil for each
+      value that is out-of-range.
+
+* Enumerable
+  * added method:
+    * added Enumerable#lazy method for lazy enumeration.
+
+* Enumerator
+  * added method:
+    * added Enumerator#size for lazy size evaluation.
+  * extended method:
+    * Enumerator.new accept an argument for lazy size evaluation.
+  * new class Enumerator::Lazy for lazy enumeration
+
+* ENV
+  * aliased method:
+    * ENV.to_h is a new alias for ENV.to_hash
+
+* Fiber
+  * incompatible changes:
+    * Fiber#resume cannot resume a fiber which invokes "Fiber#transfer".
+
+* File
+  * extended method:
+    * File.fnmatch? now expands braces in the pattern if
+      File::FNM_EXTGLOB option is given.
+
+* GC
+  * improvements:
+    * introduced the bitmap marking which suppresses to copy a memory page
+      with Copy-on-Write.
+    * introduced the non-recursive marking which avoids unexpected stack overflow.
+
+* GC::Profiler
+  * added method:
+    * added GC::Profiler.raw_data which returns raw profile data for GC.
+
+* Hash
+  * added method:
+    * added Hash#to_h as explicit conversion method, like Array#to_a.
+  * extended method:
+    * Hash#default_proc= can be passed nil to clear the default proc.
+
+* IO
+  * deprecated methods:
+    * IO#lines, #bytes, #chars and #codepoints are deprecated.
+
+* Kernel
+  * added method:
+    * added Kernel#Hash conversion method like Array() or Float().
+    * added Kernel#__dir__ which returns the absolute path of the
+      directory of the file from which this method is called.
+    * added Kernel#caller_locations which returns an array of
+      frame information objects.
+  * extended method:
+    * Kernel#warn accepts multiple args in like puts.
+    * Kernel#caller accepts second optional argument `n' which specify
+      required caller size.
+    * Kernel#to_enum and enum_for accept a block for lazy size evaluation.
+  * incompatible changes:
+    * system() and exec() closes non-standard file descriptors
+      (The default of :close_others option is changed to true by default.)
+    * respond_to? against a protected method now returns false unless
+      the second argument is true.
+    * __callee__ has returned to the original behavior, and now
+      returns the called name but not the original name in an
+      aliased method.
+    * Kernel#inspect does not call #to_s anymore
+      (it used to call redefined #to_s).
+
+* LoadError
+  * added method:
+    * added LoadError#path method to return the file name that could not be
+      loaded.
+
+* Module
+  * added method:
+    * added Module#prepend which is similar to Module#include,
+      however a method in the prepended module overrides the
+      corresponding method in the prepending module.
+    * added Module.prepended and Module.prepend_features, similar
+      to included and append_features.
+    * added Module#refine, which extends a class or module locally.
+      [experimental]
+  * extended method:
+    * Module#define_method accepts a UnboundMethod from a Module.
+    * Module#const_get accepts a qualified constant string, e.g.
+      Object.const_get("Foo::Bar::Baz")
+
+* Mutex
+  * added method:
+    * added Mutex#owned? which returns the mutex is held by current
+      thread or not. [experimental]
+  * incompatible changes:
+    * Mutex#lock, Mutex#unlock, Mutex#try_lock, Mutex#synchronize
+      and Mutex#sleep are no longer allowed to be used from trap handler
+      and raise a ThreadError in such case.
+    * Mutex#sleep may spurious wakeup. Check after wakeup.
+
+* NilClass
+  * added method:
+    * added nil.to_h which returns {}
+
+* ObjectSpace::WeakMap
+  * new low level class to hold weak references to objects.
+
+* Proc
+  * incompatible change:
+    * removed Proc#== and #eql? so two procs are == only when they are
+      the same object.
+
+* Process
+  * added method:
+    * added getsid for getting session id (unix only).
+
+* Range
+  * added method:
+    * added Range#size for lazy size evaluation.
+    * added Range#bsearch for binary search.
+
+* RubyVM (MRI specific)
+  * added RubyVM::InstructionSequence.of to get the instruction sequence
+    from a method or a block.
+  * added RubyVM::InstructionSequence#path, #absolute_path, #label,
+    #base_label and #first_lineno to retrieve information from where
+    the instruction sequence was defined.
+  * added Environment variables to specify stack usage:
+    * RUBY_THREAD_VM_STACK_SIZE: vm stack size used at thread creation.
+      default: 128KB (32bit CPU) or 256KB (64bit CPU).
+    * RUBY_THREAD_MACHINE_STACK_SIZE: machine stack size used at thread
+      creation. default: 512KB or 1024KB.
+    * RUBY_FIBER_VM_STACK_SIZE: vm stack size used at fiber creation.
+      default: 64KB or 128KB.
+    * RUBY_FIBER_MACHINE_STACK_SIZE: machine stack size used at fiber
+      creation. default: 256KB or 512KB.
+    These variables are checked only at launched time.
+  * added constant DEFAULT_PARAMS to get above default parameters.
+
+* Signal
+  * added method:
+    * added Signal.signame which returns signal name
+
+  * incompatible changes:
+    * Signal.trap raises ArgumentError when :SEGV, :BUS, :ILL, :FPE, :VTALRM
+      are specified.
+
+* String
+  * added method:
+    * added String#b returning a copied string whose encoding is ASCII-8BIT.
+  * change return value:
+    * String#lines now returns an array instead of an enumerator.
+    * String#chars now returns an array instead of an enumerator.
+    * String#codepoints now returns an array instead of an enumerator.
+    * String#bytes now returns an array instead of an enumerator.
+
+* Struct
+  * added method:
+    * added Struct#to_h returning values with keys corresponding to the
+      instance variable names.
+
+* Thread
+  * added method:
+    * added Thread#thread_variable_get for getting thread local variables
+      (these are different than Fiber local variables).
+    * added Thread#thread_variable_set for setting thread local variables.
+    * added Thread#thread_variables for getting a list of the thread local
+      variable keys.
+    * added Thread#thread_variable? for testing to see if a particular thread
+      variable has been set.
+    * added Thread.handle_interrupt as well as instance and singleton methods
+      pending_interrupt? for asynchronous handling of exceptions
+    * added Thread#backtrace_locations which returns similar information of
+      Kernel#caller_locations.
+  * new class Thread::Backtrace::Location to hold backtrace location
+    information. These are returned by Thread#backtrace_locations and
+    Kernel#caller_locations.
+  * incompatible changes:
+    * Thread#join and Thread#value now raises a ThreadError if target thread
+      is the current or main thread.
+
+* Time
+  * change return value:
+    * Time#to_s now returns US-ASCII encoding instead of BINARY.
+
+* TracePoint
+  * new class. This class is replacement of set_trace_func.
+    Easy to use and efficient implementation.
+
+* toplevel
+  * added method:
+    * added main.define_method which defines a global function.
+    * added main.using, which imports refinements into the current file or
+      eval string. [experimental]
+
+=== Core classes compatibility issues (excluding feature bug fixes)
+
+* Array#values_at
+
+  See above.
+
+* String#lines
+* String#chars
+* String#codepoints
+* String#bytes
+
+  These methods no longer return an Enumerator, although passing a
+  block is still supported for backwards compatibility.
+
+  Code like str.lines.with_index(1) { |line, lineno| ... } no longer
+  works because str.lines returns an array.  Replace lines with
+  each_line in such cases.
+
+* IO#lines
+* IO#chars
+* IO#codepoints
+* IO#bytes
+* ARGF#lines
+* ARGF#chars
+* ARGF#bytes
+* StringIO#lines
+* StringIO#chars
+* StringIO#codepoints
+* StringIO#bytes
+* Zlib::GzipReader#lines
+* Zlib::GzipReader#bytes
+
+  These methods are deprecated in favor of each_line, each_byte,
+  each_char and each_codepoint.
+
+* Proc#==
+* Proc#eql?
+
+  These methods were removed. Two procs are == only when they are
+  the same object.
+
+* Fixnum
+* Bignum
+* Float
+
+  Fixnums, Bignums and Floats are frozen.
+
+* Signal.trap
+
+  See above.
+
+* Merge Onigmo.
+  https://github.com/k-takata/Onigmo
+
+* The :close_others option is true by default for system() and exec().
+  Also, the close-on-exec flag is set by default for all new file descriptors.
+  This means file descriptors doesn't inherit to spawned process unless
+  explicitly requested such as system(..., fd=>fd).
+
+* Kernel#respond_to? against a protected method now returns false
+  unless the second argument is true.
+
+* Kernel#respond_to_missing?
+* Kernel#initialize_clone
+* Kernel#initialize_dup
+
+  These methods are now private.
+
+* Thread#join, Thread#value
+
+  See above.
+
+* Mutex#lock, Mutex#unlock, Mutex#try_lock, Mutex#synchronize and Mutex#sleep
+
+  See above.
+
+=== Stdlib updates (outstanding ones only)
+
+* cgi
+  * Add HTML5 tag maker.
+  * CGI#header has been renamed to CGI#http_header and
+    aliased to CGI#header.
+  * When HTML5 tagmaker called, overwrite CGI#header,
+    CGI#header function is to create a <header> element.
+
+* CSV
+  * Removed CSV::dump and CSV::load to protect users from dangerous
+    serialization vulnerability
+
+* iconv
+  * Iconv has been removed. Use String#encode instead.
+
+* io/console
+  * new methods:
+    * added IO#cooked which sets the terminal to cooked mode within the given block.
+    * added IO#cooked! which sets the terminal to cooked.
+  * extended method:
+    * IO#raw, IO#raw!, and IO#getch accept keyword arguments, :min and :time.
+
+* io/wait
+  * new features:
+    * added IO#wait_writable method.
+    * added IO#wait_readable method as alias of IO#wait.
+
+* json
+  * updated to 1.7.7.
+
+* net/http
+  * new features:
+    * Proxies are now automatically detected from the http_proxy environment
+      variable.  See Net::HTTP::new for details.
+    * gzip and deflate compression are now requested for all requests by
+      default.  See Net::HTTP for details.
+    * SSL sessions are now reused across connections for a single instance.
+      This speeds up connection by using a previously negotiated session.
+    * Requests may be created from a URI which sets the request_uri and host
+      header of the request (but does not change the host connected to).
+    * Responses contain the URI requested which allows easier implementation of
+      redirect following.
+  * new methods:
+    * Net::HTTP#local_host
+    * Net::HTTP#local_host=
+    * Net::HTTP#local_port
+    * Net::HTTP#local_port=
+  * extended method:
+    * Net::HTTP#connect uses local_host and local_port if specified.
+
+* net/imap
+  * new methods:
+    * Net::IMAP.default_port
+    * Net::IMAP.default_imap_port
+    * Net::IMAP.default_tls_port
+    * Net::IMAP.default_ssl_port
+    * Net::IMAP.default_imaps_port
+
+* objspace
+  * new method:
+    * ObjectSpace.reachable_objects_from(obj)
+
+* openssl
+  * Consistently raise an error when trying to encode nil values. All instances
+    of OpenSSL::ASN1::Primitive now raise TypeError when calling to_der on an
+    instance whose value is nil. All instances of OpenSSL::ASN1::Constructive
+    raise NoMethodError in the same case. Constructing such values is still
+    permitted.
+  * TLS 1.1 & 1.2 support by setting OpenSSL::SSL::SSLContext#ssl_version to
+    :TLSv1_2, :TLSv1_2_server, :TLSv1_2_client or :TLSv1_1, :TLSv1_1_server
+    :TLSv1_1_client. The version being effectively used can be queried
+    with OpenSSL::SSL#ssl_version. Furthermore, it is also possible to
+    blacklist the new TLS versions with OpenSSL::SSL:OP_NO_TLSv1_1 and
+    OpenSSL::SSL::OP_NO_TLSv1_2.
+  * Added OpenSSL::SSL::SSLContext#renegotiation_cb. A user-defined callback
+    may be set which gets called whenever a new handshake is negotiated. This
+    also allows to programmatically decline (client) renegotiation attempts.
+  * Support for "0/n" splitting of records as BEAST mitigation via
+    OpenSSL::SSL::OP_DONT_INSERT_EMPTY_FRAGMENTS.
+  * The default options for OpenSSL::SSL::SSLContext have changed to
+    OpenSSL::SSL::OP_ALL & ~OpenSSL::SSL::OP_DONT_INSERT_EMPTY_FRAGMENTS
+    instead of OpenSSL::SSL::OP_ALL only. This enables the countermeasure for
+    the BEAST attack by default.
+  * OpenSSL requires passwords for decrypting PEM-encoded files to be at least
+    four characters long. This led to awkward situations where an export with
+    a password with fewer than four characters was possible, but accessing the
+    file afterwards failed. OpenSSL::PKey::RSA, OpenSSL::PKey::DSA and
+    OpenSSL::PKey::EC therefore now enforce the same check when exporting a
+    private key to PEM with a password - it has to be at least four characters
+    long.
+  * SSL/TLS support for the Next Protocol Negotiation extension. Supported
+    with OpenSSL 1.0.1 and higher.
+  * OpenSSL::OPENSSL_FIPS allows client applications to detect whether OpenSSL
+    is FIPS-enabled. OpenSSL.fips_mode= allows turning on and off FIPS mode
+    manually in order to adapt to situations where FIPS mode would be an
+    explicit requirement.
+  * Authenticated Encryption with Associated Data (AEAD) is supported via
+    Cipher#auth_data= and Cipher#auth_tag/Cipher#auth_tag=.
+    Currently (OpenSSL 1.0.1c), only GCM mode is supported.
+
+* ostruct
+  * new methods:
+    * OpenStruct#[], []=
+    * OpenStruct#each_pair
+    * OpenStruct#eql?
+    * OpenStruct#hash
+    * OpenStruct#to_h converts the struct to a hash.
+  * extended method:
+    * OpenStruct.new also accepts an OpenStruct / Struct.
+
+* pathname
+  * extended method:
+    * Pathname#find returns an enumerator if no block is given.
+
+* rake
+  * rake has been updated to version 0.9.5.
+
+    This version is backwards-compatible with previous rake versions and
+    contains many bug fixes.
+
+    See
+    http://rake.rubyforge.org/doc/release_notes/rake-0_9_5_rdoc.html for a list
+    of changes in rake 0.9.3, 0.9.4 and 0.9.5.
+
+* RDoc
+  * RDoc has been updated to version 4.0
+
+    This version is largely backwards-compatible with previous rdoc versions.
+    The most notable change is an update to the ri data format (ri data must
+    be regenerated for gems shared across rdoc versions).  Further API changes
+    are internal and won't affect most users.
+
+    Notable changes include:
+
+    * Page support for ri.  Try `ri ruby:` for a list of pages in ruby or
+      `ri ruby:syntax/literals` for the syntax documentation for literals.
+
+      This also works for gems such as `ri rspec:README` for the rspec gem's
+      README file.
+    * Markdown support.  See ri RDoc::Markdown for details.
+
+    See https://github.com/rdoc/rdoc/blob/master/History.rdoc for a full list
+    of changes in rdoc 4.0.
+
+* resolv
+  * new methods:
+    * Resolv::DNS#timeouts=
+    * Resolv::DNS::Config#timeouts=
+
+* rexml
+  * REXML::Document#write supports Hash arguments.
+  * REXML::Document#write supports new :encoding option. It changes
+    XML document encoding. Without :encoding option, encoding in
+    XML declaration is used for XML document encoding.
+
+* RubyGems
+  * Updated to 2.0.0
+
+    RubyGems 2.0.0 features the following improvements:
+
+    * Improved support for default gems shipping with ruby 2.0.0+
+    * A gem can have arbitrary metadata through Gem::Specification#metadata
+    * `gem search` now defaults to --remote and is anchored like gem list.
+    * Added --document to replace --rdoc and --ri.  Use --no-document to
+      disable documentation, --document=rdoc to only generate rdoc.
+    * Only ri-format documentation is generated by default.
+    * `gem server` uses RDoc::Servlet from RDoc 4.0 to generate HTML
+      documentation.
+
+    For an expanded list of updates and bug fixes see:
+    https://github.com/rubygems/rubygems/blob/master/History.txt
+
+* shellwords
+  * Shellwords#shellescape now stringifies the given object using to_s.
+  * Shellwords#shelljoin accepts non-string objects in the given
+    array, each of which is stringified using to_s.
+
+* stringio
+  * deprecated methods:
+    * StringIO#lines, #bytes, #chars and #codepoints are deprecated.
+
+* syslog
+  * Added Syslog::Logger which provides a Logger API atop Syslog.
+  * Syslog::Priority, Syslog::Level, Syslog::Option and Syslog::Macros
+    are introduced for easy detection of available constants on a
+    running system.
+
+* tmpdir
+  * incompatible changes:
+    * Dir.mktmpdir uses FileUtils.remove_entry instead of
+      FileUtils.remove_entry_secure.  This means that applications should not
+      change the permission of the created temporary directory to make
+      accessible from other users.
+
+* yaml
+  * Syck has been removed.  YAML now completely depends on libyaml being
+    installed.
+  * libyaml is now bundled with ruby, for cases where the library is not
+    installed locally.
+
+* zlib
+  * Added streaming support for Zlib::Inflate and Zlib::Deflate.  This allows
+    processing of a stream without the use of large amounts of memory.
+  * Added support for the new deflate strategies Zlib::RLE and Zlib::FIXED.
+  * Zlib streams are now processed without the GVL.  This allows gzip, zlib and
+    deflate streams to be processed in parallel.
+  * deprecated methods:
+    * Zlib::GzipReader#lines and #bytes are deprecated.
+
+=== Stdlib compatibility issues (excluding feature bug fixes)
+
+* OpenStruct new methods can conflict with custom attributes named
+  "each_pair", "eql?", "hash" or "to_h".
+
+* Dir.mktmpdir in lib/tmpdir.rb
+
+  See above.
+
+=== C API updates
+
+* NUM2SHORT() and NUM2USHORT() added. They are similar to NUM2INT, but short.
+
+* rb_newobj_of() and NEWOBJ_OF() added. They create a new object of a given class.
+
diff --git a/doc/NEWS-2.1.0 b/doc/NEWS-2.1.0
new file mode 100644
index 0000000000..5d4152b8dc
--- /dev/null
+++ b/doc/NEWS-2.1.0
@@ -0,0 +1,376 @@
+# -*- rdoc -*-
+
+= NEWS for Ruby 2.1.0
+
+This document is a list of user visible feature changes made between
+releases except for bug fixes.
+
+Note that each entry is kept so brief that no reason behind or
+reference information is supplied with.  For a full list of changes
+with all sufficient information, see the ChangeLog file.
+
+== Changes since the 2.0.0 release
+
+=== Language changes
+
+* Now the default values of keyword arguments can be omitted.  Those
+  "required keyword arguments" need giving explicitly at the call time.
+
+* Added suffixes for integer and float literals: 'r', 'i', and 'ri'.
+  * "42r" and "3.14r" are evaluated as Rational(42, 1) and 3.14.rationalize,
+    respectively.  But exponential form with 'r' suffix like "6.022e+23r" is
+    not accepted because it is misleading.
+  * "42i" and "3.14i" are evaluated as Complex(0, 42) and Complex(0, 3.14),
+    respectively.
+  * "42ri" and "3.14ri" are evaluated as Complex(0, 42r) and Complex(0, 3.14r),
+    respectively.
+
+* def-expr now returns the symbol of its name instead of nil.
+
+=== Core classes updates (outstanding ones only)
+
+* Array
+  * New methods
+    * Array#to_h converts an array of key-value pairs into a Hash.
+
+* Binding
+  * New methods
+    * Binding#local_variable_get(symbol)
+    * Binding#local_variable_set(symbol, obj)
+    * Binding#local_variable_defined?(symbol)
+
+* Enumerable
+  * New methods
+    * Enumerable#to_h converts a list of key-value pairs into a Hash.
+
+* Exception
+  * New methods
+    * Exception#cause provides the previous exception which has been caught
+      at where raising the new exception.
+
+* GC
+  * improvements:
+    * introduced the generational GC a.k.a RGenGC.
+  * added environment variables:
+    * RUBY_GC_HEAP_INIT_SLOTS
+    * RUBY_GC_HEAP_FREE_SLOTS
+    * RUBY_GC_HEAP_GROWTH_FACTOR
+    * RUBY_GC_HEAP_GROWTH_MAX_SLOTS
+    * RUBY_GC_MALLOC_LIMIT_MAX
+    * RUBY_GC_MALLOC_LIMIT_GROWTH_FACTOR
+    * RUBY_GC_OLDMALLOC_LIMIT
+    * RUBY_GC_OLDMALLOC_LIMIT_MAX
+    * RUBY_GC_OLDMALLOC_LIMIT_GROWTH_FACTOR
+  * obsoleted environment variables:
+    * RUBY_FREE_MIN (Use RUBY_GC_HEAP_FREE_SLOTS instead)
+    * RUBY_HEAP_MIN_SLOTS (Use RUBY_GC_HEAP_INIT_SLOTS instead)
+
+* Integer
+  * New methods
+    * Fixnum#bit_length
+    * Bignum#bit_length
+  * Bignum performance improvement
+    * Use GMP if available.
+      GMP is used only for several operations:
+      multiplication, division, radix conversion, GCD
+
+* IO
+  * extended methods:
+    * IO#seek supports SEEK_DATA and SEEK_HOLE as whence.
+    * IO#seek accepts symbols (:CUR, :END, :SET, :DATA, :HOLE) for 2nd argument.
+    * IO#read_nonblock accepts optional `exception: false` to return symbols
+    * IO#write_nonblock accepts optional `exception: false` to return symbols
+
+* Kernel
+  * New methods:
+    * Kernel#singleton_method
+
+* Module
+  * New methods:
+    * Module#using, which activates refinements of the specified module only
+      in the current class or module definition.
+    * Module#singleton_class? returns true if the receiver is a singleton class
+      or false if it is an ordinary class or module.
+  * extended methods:
+    * Module#refine is no longer experimental.
+    * Module#include and Module#prepend are now public methods.
+
+* Mutex
+  * misc
+    * Mutex#owned? is no longer experimental.
+
+* Numeric
+  * extended methods:
+    * Numeric#step allows the limit argument to be omitted, in which
+      case an infinite sequence of numbers is generated.  Keyword
+      arguments `to` and `by` are introduced for ease of use.
+      `by` can be 0, in which case the same value will be generated
+      indefinitely.
+
+* Process
+  * New methods:
+    * alternative methods to $0/$0=:
+      * Process.argv0() returns the original value of $0.
+      * Process.setproctitle() sets the process title without affecting $0.
+    * Process.clock_gettime
+    * Process.clock_getres
+
+* String
+  * "literal".freeze is now optimized to return the same object
+  * New methods:
+    * String#scrub and String#scrub! verify and fix invalid byte sequence.
+      If you want to use this function with older Ruby,
+      consider to use string-scrub.gem.
+
+* Symbol
+  * All symbols are now frozen.
+
+* pack/unpack (Array/String)
+  * Q! and q! directives for long long type if platform has the type.
+
+* toplevel
+  * extended methods:
+    * main.using is no longer experimental. The method activates refinements
+      in the ancestors of the argument module to support refinement
+      inheritance by Module#include.
+
+=== Core classes compatibility issues (excluding feature bug fixes)
+
+* Hash
+  * incompatible changes:
+    * Hash#reject will return plain Hash object in the future versions, that
+      is the original object's subclass, instance variables, default value,
+      and taintedness will be no longer copied, so now warnings are emitted
+      when called with such Hash.
+
+* IO
+  * incompatible changes:
+    * open ignore internal encoding if external encoding is ASCII-8BIT.
+
+* Kernel#eval, Kernel#instance_eval, and Module#module_eval.
+  * Copies the scope information of the original environment, which means
+    that private, protected, public, and module_function without arguments
+    do not affect the environment outside the eval string.
+    For example, `class Foo; eval "private"; def foo; end; end' doesn't make
+    Foo#foo private.
+
+* Kernel#untrusted?, untrust, and trust
+  * These methods are deprecated and their behavior is same as tainted?,
+    taint, and untaint, respectively.  If $VERBOSE is true, they show warnings.
+
+* Module#ancestors
+  * The ancestors of a singleton class now include singleton classes,
+    in particular itself.
+
+* Module#define_method and Object#define_singleton_method
+  * Now they return the symbols of the defined methods, not the methods/procs
+    themselves.
+
+* Numeric#quo
+  * Raises TypeError instead of ArgumentError if the receiver doesn't have
+    to_r method.
+
+* Proc
+  * Returning from lambda proc now always exits from the Proc, not from the
+    method where the lambda is created.  Returning from non-lambda proc exits
+    from the method, same as the former behavior.
+
+String
+  * If invalid: :replace is specified for String#encode, replace
+    invalid byte sequence even if the destination encoding equals to
+    the source encoding.
+
+=== Stdlib updates (outstanding ones only)
+
+* CGI::Util
+  * All class methods modulized.
+
+* Digest
+  * extended methods:
+    * Digest::Class.file takes optional arguments for its constructor
+
+* Matrix
+  * Added Vector#cross_product.
+
+* Net::SMTP
+  * Added Net::SMTP#rset to implement the RSET command
+
+* objspace
+  * new method:
+    * ObjectSpace.trace_object_allocations
+    * ObjectSpace.trace_object_allocations_start
+    * ObjectSpace.trace_object_allocations_stop
+    * ObjectSpace.trace_object_allocations_clear
+    * ObjectSpace.allocation_sourcefile
+    * ObjectSpace.allocation_sourceline
+    * ObjectSpace.allocation_class_path
+    * ObjectSpace.allocation_method_id
+    * ObjectSpace.allocation_generation
+    * ObjectSpace.reachable_objects_from_root
+    * ObjectSpace.dump
+    * ObjectSpace.dump_all
+
+* OpenSSL::BN
+  * extended methods:
+    * OpenSSL::BN.new allows Fixnum/Bignum argument.
+
+* open-uri
+  * Support multiple fields with same field name (like Set-Cookie).
+
+* Pathname
+  * New methods:
+    * Pathname#write
+    * Pathname#binwrite
+
+* rake
+  * Updated to 10.1.0.  Major changes include removal of the class namespace,
+    Rake::DSL to hold the rake DSL methods and removal of support for legacy
+    rake features.
+
+    For a complete list of changes since rake 0.9.6 see:
+
+    http://rake.rubyforge.org/doc/release_notes/rake-10_1_0_rdoc.html
+
+    http://rake.rubyforge.org/doc/release_notes/rake-10_0_3_rdoc.html
+
+* RbConfig
+  * New constants:
+    * RbConfig::SIZEOF is added to provide the size of C types.
+
+* RDoc
+  * Updated to 4.1.0.  Major enhancements include a modified default template
+  * and accessibility enhancements.
+
+    For a list of minor enhancements and bug fixes see:
+    https://github.com/rdoc/rdoc/blob/v4.1.0.preview.1/History.rdoc
+
+* Resolv
+  * New methods:
+    * Resolv::DNS.fetch_resource
+  * One-shot multicast DNS support
+  * Support LOC resources
+
+* REXML::Parsers::SAX2Parser
+  * Fixes wrong number of arguments of entitydecl event. Document of the event
+    says "an array of the entity declaration" but implementation passes two
+    or more arguments. It is an implementation bug but it breaks backward
+    compatibility.
+
+* REXML::Parsers::StreamParser
+  * Supports "entity" event.
+
+* REXML::Text
+  * REXML::Text#<< supports method chain like 'text << "XXX" << "YYY"'.
+  * REXML::Text#<< supports not "raw" mode.
+
+* Rinda::RingServer, Rinda::RingFinger
+  * Rinda now supports multicast sockets.  See Rinda::RingServer and
+    Rinda::RingFinger for details.
+
+* RubyGems
+  * Updated to 2.2.0.  Notable new features include:
+
+    * Gemfile or gem.deps.rb support including Gem.file.lock (experimental)
+    * Improved, iterative resolver (compared to RubyGems 2.1 and earlier)
+    * Support for a sharing a GEM_HOME across ruby platforms and versions
+
+    For a complete list of enhancements and bug fixes see:
+    https://github.com/rubygems/rubygems/tree/master/History.txt
+
+* Set
+  * New methods:
+    * Set#intersect?
+    * Set#disjoint?
+
+* Socket
+  * New methods:
+    * Socket.getifaddrs
+
+* StringScanner
+  * extended methods:
+    * StringScanner#[] supports named captures.
+
+* Syslog::Logger
+  * Added facility.
+
+* Tempfile
+  * New methods:
+    * Tempfile.create
+
+* Timeout
+  * The exception to terminate the given block can no longer be rescued
+    inside the block, by default, unless the exception class is given
+    explicitly.
+
+* TSort
+  * New methods:
+    * TSort.tsort
+    * TSort.tsort_each
+    * TSort.strongly_connected_components
+    * TSort.each_strongly_connected_component
+    * TSort.each_strongly_connected_component_from
+
+* WEBrick
+  * The body of a response may now be a StringIO or other IO-like that responds
+    to #readpartial and #read.
+
+* XMLRPC::Client
+  * New methods:
+    * XMLRPC::Client#http. It returns Net::HTTP for the client. Normally,
+      it is not needed. It is useful when you want to change minor HTTP client
+      options. You can change major HTTP client options by XMLRPC::Client
+      methods. You should use XMLRPC::Client methods for changing major
+      HTTP client options instead of XMLRPC::Client#http.
+
+=== Stdlib compatibility issues (excluding feature bug fixes)
+
+* Set
+  * incompatible changes:
+    * Set#to_set now returns self instead of generating a copy.
+
+* URI
+  * incompatible changes:
+    * URI.decode_www_form follows current WHATWG URL Standard.
+      It gets encoding argument to specify the character encoding.
+      It now allows loose percent encoded strings, but denies ;-separator.
+    * URI.encode_www_form follows current WHATWG URL Standard.
+      It gets encoding argument to convert before percent encode.
+      UTF-16 strings aren't converted to UTF-8 before percent encode by default.
+
+* curses
+  * Removed.
+    curses is now available as a gem.
+    See https://rubygems.org/gems/curses for details.
+
+=== Built-in global variables compatibility issues
+
+* $SAFE
+  * $SAFE=4 is obsolete.  If $SAFE is set to 4 or larger, an ArgumentError
+    is raised.
+
+=== C API updates
+
+* rb_gc_set_params() is deprecated. This is only used in Ruby internal.
+
+* rb_gc_count() added. This returns the number of times GC occurred.
+
+* rb_gc_stat() added. This allows access to specific GC.stat() values from C
+  without any allocation overhead.
+
+* rb_gc_latest_gc_info() added. This allows access to GC.latest_gc_info().
+
+* rb_postponed_job_register() added. Takes a function callback which is invoked
+  when the VM is in a consistent state, i.e. to perform work from a C signal
+  handler.
+
+* rb_profile_frames() added. Provides low-cost access to the current ruby stack
+  for callstack profiling.
+
+* rb_tracepoint_new() supports new internal events accessible only from C:
+  * RUBY_INTERNAL_EVENT_NEWOBJ
+  * RUBY_INTERNAL_EVENT_FREEOBJ
+  * RUBY_INTERNAL_EVENT_GC_START
+  * RUBY_INTERNAL_EVENT_GC_END_MARK
+  * RUBY_INTERNAL_EVENT_GC_END_SWEEP
+  * Note that you *can not* specify "internal events" with normal events
+    (such as RUBY_EVENT_CALL, RUBY_EVENT_RETURN) simultaneously.
diff --git a/doc/NEWS-2.2.0 b/doc/NEWS-2.2.0
new file mode 100644
index 0000000000..70ccddf32d
--- /dev/null
+++ b/doc/NEWS-2.2.0
@@ -0,0 +1,361 @@
+# -*- rdoc -*-
+
+= NEWS for Ruby 2.2.0
+
+This document is a list of user visible feature changes made between
+releases except for bug fixes.
+
+Note that each entry is kept so brief that no reason behind or
+reference information is supplied with.  For a full list of changes
+with all sufficient information, see the ChangeLog file.
+
+== Changes since the 2.1.0 release
+
+=== Language changes
+
+* nil/true/false
+  * nil/true/false objects are frozen. [Feature #8923]
+
+* Hash literal
+  * Symbol key followed by a colon can be quoted. [Feature #4276]
+
+* default argument
+  fixed a very longstanding bug that an optional argument was not
+  accessible in its default value expression.  [Bug #9593]
+
+=== Core classes updates (outstanding ones only)
+
+* Binding
+  * New methods:
+    * Binding#local_variables
+    * Binding#receiver
+
+* Dir
+  * New methods:
+    * Dir#fileno
+
+* Enumerable
+  * New methods:
+    * Enumerable#slice_after
+    * Enumerable#slice_when
+  * Extended methods:
+    * min, min_by, max and max_by supports optional argument to return
+      multiple elements.
+
+* Float
+  * New methods:
+    * Float#next_float
+    * Float#prev_float
+
+* File
+  * New methods:
+    * File.birthtime
+    * File#birthtime
+
+* File::Stat
+  * New methods:
+    * File::Stat#birthtime
+
+* GC
+  * GC.latest_gc_info returns :state to represent current GC status.
+  * Improvements
+    * Introduce incremental marking for major GC. [Feature #10137]
+
+* IO
+  * Improvements
+    * IO#nonblock_read and IO#nonblock_write for pipes on Windows are supported.
+
+* Kernel
+  * New methods:
+    * Kernel#itself
+  * Improvements
+    * Kernel#throw raises UncaughtThrowError, subclass of ArgumentError when
+      there is no corresponding catch block, instead of ArgumentError.
+
+* Process
+  * Extended method:
+    * Process execution methods such as Process.spawn opens the file in write
+      mode for redirect from [:out, :err].
+
+* String
+  * New methods:
+    * String#unicode_normalize
+    * String#unicode_normalize!
+    * String#unicode_normalized?
+
+* Symbol
+  * Improvements
+    * Most symbols which are returned by String#to_sym and
+      String#intern are GC-able.
+
+* Method
+  * New methods:
+    * Method#curry([arity]) returns a curried Proc.
+    * Method#super_method returns a Method of superclass, which would be called
+      when super is used.
+
+=== Core classes compatibility issues (excluding feature bug fixes)
+
+* Enumerable
+  * Enumerable#slice_before's state management deprecated.
+  * Enumerable#chunk's state management deprecated.
+
+* GC
+  * incompatible changes:
+    * Rename GC.stat entries. [Feature #9924]
+      See https://docs.google.com/spreadsheets/d/11Ua4uBr6o0k-nORrZLEIIUkHJ9JRzRR0NyZfrhEEnc8/edit?usp=sharing
+
+* Hash
+  * incompatible changes:
+    * Change overriding policy for duplicated key. [Bug #10315]
+      { **hash1, **hash2 } contains values of hash2 for duplicated keys.
+
+* IO
+  * incompatible changes:
+    * When flushing file IO with IO#flush, you cannot assume that the metadata
+      of the file is updated immediately.  On some platforms (especially
+      Windows), it is delayed until the filesystem load is decreased.
+      Use IO#fsync if you want to guarantee updating metadata.
+
+* Math
+  * incompatible changes:
+    * Math.log now raises Math::DomainError instead of returning NaN if the
+      base is less than 0, and returns NaN instead of -infinity if both of
+      two arguments are 0.
+    * Math.atan2 now returns values like as expected by C99 if both two
+      arguments are infinity.
+
+* Proc
+  * incompatible changes:
+    * ArgumentError is no longer raised when lambda Proc is passed as a
+      block, and the number of yielded arguments does not match the formal
+      arguments of the lambda, if just an array is yielded and its length
+      matches.
+
+* Process
+  * Process execution methods such as Process.spawn opens the file in write
+    mode for redirect from [:out, :err].
+    Before Ruby 2.2, it was opened in read mode.
+
+=== Stdlib updates (outstanding ones only)
+
+* Continuation
+  * callcc is obsolete. use Fiber instead.
+
+* Digest
+
+  * Digest() should now be thread-safe.  If you have a problem with
+    regard to on-demand loading under a multi-threaded environment,
+    preload "digest/*" modules on boot or use this method instead of
+    directly referencing Digest::*.
+  * Digest::HMAC has been removed just as previously noticed.
+
+* DL
+  * DL has been removed from stdlib. Please use Fiddle instead!
+
+* Etc
+  * New methods:
+    * Etc.uname
+    * Etc.sysconf
+    * Etc.confstr
+    * IO#pathconf
+    * Etc.nprocessors
+
+* Find, Pathname
+  * Extended methods:
+    * find method accepts "ignore_error" keyword argument.
+
+* Matrix
+  * New methods:
+    * Matrix#first_minor(row, column) returns the submatrix obtained
+      by deleting the specified row and column.
+    * Matrix#cofactor(row, column) returns the (row, column) cofactor
+      which is obtained by multiplying the first minor by (-1)**(row + column).
+    * Matrix#adjugate returns the adjugate of the matrix.
+    * hstack and vstack are new instance and class methods to stack matrices
+      horizontally and vertically.
+    * Matrix#laplace_expansion(row_or_column: num) returns the laplace_expansion
+      along the +num+ -th row or column.
+    * Vector.basis(size:, index:) returns the specified basis vector.
+    * Unary - and + added for Vector and Matrix.
+    * Vector#cross_product generalized to arbitrary dimensions.
+    * Vector#dot and #cross are aliases for #inner_product and #cross_product.
+    * Vector#angle_with returns the angle with its argument
+    * New instance and class method independent? to test linear independence.
+
+* Pathname
+  * Pathname#/ is aliased to Pathname#+.
+  * New methods:
+    * Pathname#birthtime
+
+* Rake
+  * Updated to Rake 10.4.0.  For full release notes see:
+
+    http://docs.seattlerb.org/rake/History_rdoc.html#label-10.4.0
+
+* RubyGems
+  * Updated to RubyGems 2.4.2.  For full release notes see:
+
+    http://docs.seattlerb.org/rubygems/History_txt.html#label-2.4.2+%2F+2014-10-01
+
+* TSort
+  * TSort.tsort_each, TSort.each_strongly_connected_component and
+    TSort.each_strongly_connected_component_from returns an enumerator if
+    no block given.
+
+* XMLRPC
+  * Added new parser class named LibXMLStreamParser.
+
+=== Stdlib compatibility issues (excluding feature bug fixes)
+
+* lib/mathn.rb
+  * Show deprecated warning [Feature #10169]
+
+* ext/date/lib/date/format.rb
+  * Removed because it's empty file.
+
+* Digest
+  * Digest::HMAC has finally ceased to exist.  Use OpenSSL::HMAC or an external gem instead.
+
+* time.rb
+  * Time.parse, Time.strptime, Time.rfc2822, Time.xmlschema may produce
+    fixed-offset Time objects.
+    It is happen when usual localtime doesn't preserve the offset from UTC.
+  * Time.httpdate produces always UTC Time object.
+  * Time.strptime raises ArgumentError when no date information.
+
+* lib/rational.rb
+  * Removed because it is deprecated from 2009.
+
+* lib/complex.rb
+  * Removed because it is deprecated from 2009.
+
+* lib/prettyprint.rb
+  * Removed PrettyPrint#first?
+
+* lib/minitest/*.rb
+  * Removed because it conflicts to minitest 5. [Feature #9711]
+
+* lib/test/**/*.rb
+  * Removed because it conflicts to minitest 5, and it was just an wrapper
+    of minitest 4. [Feature #9711]
+
+* lib/uri
+  * support RFC 3986. [Feature #2542]
+
+* GServer
+  * GServer is extracted to gserver gem. It's unmaintain code.
+
+* Logger
+  * Logger::Application is extracted to logger-application gem. It's unmaintain code.
+
+* ObjectSpace (after requiring "objspace")
+  * ObjectSpace.memsize_of(obj) returns a size includes sizeof(RVALUE).
+    [Bug #8984]
+
+* Prime
+  * incompatible changes:
+    * Prime.prime? now returns false for negative numbers. This method
+      should not be used to know the number is composite or not. [Bug #7395]
+
+* Psych
+  * Removed Psych::EngineManager [Bug #8344]
+
+=== Built-in global variables compatibility issues
+
+=== C API updates
+
+* Deprecated APIs removed.  [Feature #9502]
+
+  Check_SafeStr -> SafeStringValue
+  rb_check_safe_str -> SafeStringValue
+  rb_quad_pack -> rb_integer_pack
+  rb_quad_unpack -> rb_integer_unpack
+  rb_read_check : access struct FILE internal. no replacement.
+  rb_struct_iv_get : internal function. no replacement.
+  struct rb_blocking_region_buffer : internal type. no replacement.
+  rb_thread_blocking_region_begin -> rb_thread_call_without_gvl family
+  rb_thread_blocking_region_end -> rb_thread_call_without_gvl family
+  TRAP_BEG -> rb_thread_call_without_gvl family
+  TRAP_END -> rb_thread_call_without_gvl family
+  rb_thread_select -> rb_thread_fd_select
+  struct rb_exec_arg : internal type. no replacement.
+  rb_exec : internal function. no replacement.
+  rb_exec_arg_addopt : internal function. no replacement.
+  rb_exec_arg_fixup : internal function. no replacement.
+  rb_exec_arg_init : internal function. no replacement.
+  rb_exec_err : internal function. no replacement.
+  rb_fork : internal function. no replacement.
+  rb_fork_err : internal function. no replacement.
+  rb_proc_exec_n : internal function. no replacement.
+  rb_run_exec_options : internal function. no replacement.
+  rb_run_exec_options_err : internal function. no replacement.
+  rb_thread_blocking_region -> rb_thread_call_without_gvl family
+  rb_thread_polling -> rb_thread_wait_for
+  rb_big2str0 : internal function. no replacement.
+  rb_big2ulong_pack -> rb_integer_pack
+  rb_gc_set_params : internal function. no replacement.
+  rb_io_mode_flags -> rb_io_modestr_fmode
+  rb_io_modenum_flags -> rb_io_oflags_fmode
+
+* struct RBignum is hidden.  [Feature #6083]
+  Use rb_integer_pack and rb_integer_unpack instead.
+
+* struct RRational is hidden.  [Feature #9513]
+  Use rb_rational_num and rb_rational_den instead.
+
+* rb_big_new and rb_big_resize takes a size_t instead of long.
+
+* rb_num2long returns a long instead of SIGNED_VALUE.
+
+* rb_num2ulong returns an unsigned long instead of VALUE.
+
+* st hash table uses power-of-two sizes for speed [Feature #9425].
+  Lookups are 10-25% faster if using appropriate hash functions.
+  However, weaknesses in hash distribution can no longer be masked
+  by prime number-sized tables, so extensions may need to tweak
+  hash functions to ensure good distribution.
+
+* rb_sym2str() added. This is almost same as `rb_id2str(SYM2ID(sym))`
+  but not pinning a dynamic symbol.
+
+* rb_str_cat_cstr() added. This is same as `rb_str_cat2()`.
+
+* `rb_str_substr()` and `rb_str_subseq()` will share middle of a string,
+  but not only the end of a string, in the future.  Therefore, result
+  strings may not be NUL-terminated, `StringValueCStr()` is needed
+  calling to obtain a NUL-terminated C string.
+
+* rb_tracepoint_new() supports new internal events accessible only from C:
+  * RUBY_INTERNAL_EVENT_GC_ENTER
+  * RUBY_INTERNAL_EVENT_GC_EXIT
+    r47528
+
+* rb_hash_delete() now does not call the block given to the current method.
+
+* rb_extract_keywords() and rb_get_kwargs() exported.  See README.EXT
+  for details.
+
+=== Build system updates
+
+* jemalloc is optionally supported via `./configure --with-jemalloc`
+  jemalloc may be suitable when system malloc is slow or prone
+  to fragmentation.  [Feature #9113]
+
+=== Implementation changes
+
+* GC
+    * Most symbols which are returned by String#to_sym and
+      String#intern are GC-able [Feature #9634]
+    * Introduce incremental marking for major GC. [Feature #10137]
+    * Enable lazy sweep on GC caused by malloc().
+
+* VM
+    * Use frozen string literals for Hash#[] and Hash#[]=
+    * Fast keyword arguments passing [Feature #10440]
+    * Allow to receive huge splatted array by a rest argument
+      [Feature #10440]
+
+* Process
+    * Process creation methods, such as spawn(), uses vfork() system call.
+      vfork() is faster than fork() when the parent process uses huge memory.
diff --git a/doc/contributing.rdoc b/doc/contributing.rdoc
new file mode 100644
index 0000000000..898f1174eb
--- /dev/null
+++ b/doc/contributing.rdoc
@@ -0,0 +1,468 @@
+= Contributing to Ruby
+
+Ruby has a vast and friendly community with hundreds of people contributing to
+a thriving open-source ecosystem. This guide is designed to cover ways for
+participating in the development of CRuby.
+
+There are plenty of ways for you to help even if you're not ready to write
+code or documentation.  You can help by reporting issues, testing patches, and
+trying out beta releases with your applications.
+
+== How To Report
+
+If you've encountered a bug in Ruby please report it to the redmine issue
+tracker available at {bugs.ruby-lang.org}[http://bugs.ruby-lang.org/].  Do not
+report security vulnerabilities here, there is a {separate
+channel}[rdoc-label:label-Reporting+Security+Issues] for them.
+
+There are a few simple steps you should follow in order to receive feedback
+on your ticket.
+
+* If you haven't already,
+  {sign up for an account}[https://bugs.ruby-lang.org/account/register] on the
+  bug tracker.
+* Try the latest version.
+
+  If you aren't already using the latest version, try installing a newer
+  stable release. See
+  {Downloading Ruby}[http://www.ruby-lang.org/en/downloads/].
+* Look to see if anyone already reported your issue, try
+  {searching on redmine}[https://bugs.ruby-lang.org/projects/ruby-trunk/issues]
+  for your problem.
+* If you can't find a ticket addressing your issue,
+  {create a new one}[https://bugs.ruby-lang.org/projects/ruby-trunk/issues/new].
+* Choose the target version, usually current. Bugs will be first fixed in the
+  current release and then {backported}[rdoc-label:label-Backport+Requests].
+* Fill in the Ruby version you're using when experiencing this issue
+  (<code>ruby -v</code>).
+* Attach any logs or reproducible programs to provide additional information.
+  Reproducible scripts should be as small as possible.
+* Briefly describe your problem.  A 2-3 sentence description will help give a
+  quick response.
+* Pick a category, such as core for common problems, or lib for a standard
+  library.
+* Check the {Maintainers
+  list}[https://bugs.ruby-lang.org/projects/ruby/wiki/Maintainers] and assign
+  the ticket if there is an active maintainer for the library or feature.
+* If the ticket doesn't have any replies after 10 days, you can send a
+  reminder.
+* Please reply to feedback requests. If a bug report doesn't get any feedback,
+  it'll eventually get rejected.
+
+=== Reporting to downstream distributions
+
+You can report downstream issues for the following distributions via their bug tracker:
+
+* {debian}[http://bugs.debian.org/cgi-bin/pkgreport.cgi?src=ruby-defaults]
+* {freebsd}[http://www.freebsd.org/cgi/query-pr-summary.cgi?text=ruby]
+* {redhat}[https://bugzilla.redhat.com/buglist.cgi?bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&bug_status=MODIFIED]
+* {macports}[http://trac.macports.org/query?status=assigned&status=new&status=reopened&port=~ruby]
+* etc (add your distribution bug tracker here)
+
+=== Platform Maintainers
+
+For platform specific bugs in Ruby, you can assign your ticket to the current
+maintainer for a specific platform.
+
+The current active platform maintainers are as follows:
+
+[mswin32, mswin64 (Microsoft Windows)]
+  NAKAMURA Usaku (usa)
+[mingw32 (Minimalist GNU for Windows)]
+  Nobuyoshi Nakada (nobu)
+[IA-64 (Debian GNU/Linux)]
+  TAKANO Mitsuhiro (takano32)
+[Symbian OS]
+  Alexander Zavorine (azov)
+[AIX]
+  Yutaka Kanemoto (kanemoto)
+[FreeBSD]
+  Akinori MUSHA (knu)
+[Solaris]
+  Naohisa Goto (ngoto)
+[RHEL, CentOS]
+  KOSAKI Motohiro kosaki
+[Mac OS X]
+  Kenta Murata (mrkn)
+[cygwin, bcc32, djgpp, wince, ...]
+  none. (Maintainer WANTED)
+
+== Reporting Security Issues
+
+Security vulnerabilities receive special treatment since they may negatively
+affect many users. There is a private mailing list that all security issues
+should be reported to and will be handled discretely. Email the
+mailto:security@ruby-lang.org list and the problem will be published after
+fixes have been released. You can also encrypt the issue using {the PGP public
+key}[http://www.ruby-lang.org/security.asc] for the list.
+
+== Reporting Other Issues
+
+If you're having an issue with the website, or maybe the mailing list, you can
+contact the webmaster to help resolve the problem.
+
+The current webmaster is:
+
+* Hiroshi SHIBATA (hsbt)
+
+You can also report issues with the ruby-lang.org website on the issue tracker:
+
+* {issue tracker}[https://github.com/ruby/www.ruby-lang.org/issues]
+
+== Resolve Existing Issues
+
+As a next step beyond reporting issues you can help the core team resolve
+existing issues. If you check the Everyone's Issues list in GitHub Issues,
+you will find a lot of issues already requiring attention. What can you do for
+these? Quite a bit, actually:
+
+When a bug report goes for a while without any feedback, it goes to the bug
+graveyard which is unfortunate. If you check the {issues
+list}[https://bugs.ruby-lang.org/projects/ruby-trunk/issues] you will find lots
+of delinquent bugs that require attention.
+
+You can help by verifying the existing tickets, try to reproduce the reported
+issue on your own and comment if you still experience the bug. Some issues
+lack attention because of too much ambiguity, to help you can narrow down the
+problem and provide more specific details or instructions to reproduce the
+bug. You might also try contributing a failing test in the form of a patch,
+which we will cover later in this guide.
+
+It may also help to try out patches other contributors have submitted to
+redmine, if gone without notice. In this case the +patch+ command is your
+friend, see <code>man patch</code> for more information. Basically this would
+go something like this:
+
+  cd path/to/ruby/trunk
+  patch -p0 < path/to/patch
+
+You will then be prompted to apply the patch with the associated files. After
+building ruby again, you should try to run the tests and verify if the change
+actually worked or fixed the bug. It's important to provide valuable feedback
+on the patch that can help reach the overall goal, try to answer some of these
+questions:
+
+* What do you like about this change?
+* What would you do differently?
+* Are there any other edge cases not tested?
+* Is there any documentation that would be affected by this change?
+
+If you can answer some or all of these questions, you're on the right track.
+If your comment simply says "+1", then odds are that other reviewers aren't
+going to take it too seriously. Show that you took the time to review the
+patch.
+
+== How To Request Features
+
+If there's a new feature that you want to see added to Ruby, you will need to
+write a convincing proposal and patch to implement the feature.
+
+For new features in CRuby, use the {'Feature'
+tracker}[https://bugs.ruby-lang.org/projects/ruby-trunk/issues?set_filter=1&tracker_id=2]
+on ruby-trunk. For non-CRuby dependent features, features that would apply to
+alternate Ruby implementations such as JRuby and Rubinius, use the {CommonRuby
+tracker}[https://bugs.ruby-lang.org/projects/common-ruby].
+
+When writing a proposal be sure to check for previous discussions on the
+topic and have a solid use case. You will need to be persuasive and convince
+Matz on your new feature. You should also consider the potential compatibility
+issues that this new feature might raise.
+
+Consider making your feature into a gem, and if there are enough people who
+benefit from your feature it could help persuade ruby-core. Although feature
+requests can seem like an alluring way to contribute to Ruby, often these
+discussions can lead nowhere and exhaust time and energy that could be better
+spent fixing bugs. Choose your battles.
+
+A good template for a feature proposal should look something like this:
+
+[Abstract]
+  Summary of your feature
+[Background]
+  Describe current behavior and why it is problem. Related work, such as
+  solutions in other language helps us to understand the problem.
+[Proposal]
+  Describe your proposal in details
+[Details]
+  If it has complicated feature, describe it
+[Usecase]
+  How would your feature be used? Who will benefit from it?
+[Discussion]
+  Discuss about this proposal. A list of pros and cons will help start
+  discussion.
+[Limitation]
+  Limitation of your proposal
+[Another alternative proposal]
+  If there are alternative proposals, show them.
+[See also]
+  Links to the other related resources
+
+=== Slideshow
+
+At the Ruby Developer Meeting in Japan, committers discuss Feature Proposals together in Tokyo. We will judge proposals and then accept, reject, or give feedback for them.
+If you have a stalled proposal, making a slide to submit is good way to get feedback.
+
+Slides should be:
+
+* One-page slide
+* Include a corresponding ticket number
+* MUST include a figure and/or short example code
+* SHOULD have less sentence in natural language (try to write less than 140 characters)
+* It is RECOMMENDED to itemize: motivation/use case, proposal, pros/cons, corner case
+* PDF or Image (Web browsers can show it)
+
+Please note:
+
+* Even if the proposal is generally acceptable, it won't be accepted without writing corner cases in the ticket
+* Slide's example: DevelopersMeeting20130727Japan
+
+== Backport Requests
+
+When a new version of Ruby is released, it starts at patch level 0 (p0), and
+bugs will be fixed first on the trunk branch. If it's determined that a bug
+exists in a previous version of Ruby that is still in the bug fix stage of
+maintenance, then a patch will be backported. After the maintenance stage of a
+particular Ruby version ends, it goes into "security fix only" mode which
+means only security related vulnerabilities will be backported. Versions in
+End-of-life (EOL) will not receive any updates and it is recommended you
+upgrade as soon as possible.
+
+If a major security issue is found or after a certain amount of time since the
+last patch level release, a new patch-level release will be made.
+
+When submitting a backport request please confirm the bug has been fixed in
+newer versions and exists in maintenance mode versions. There is a backport
+tracker for each major version still in maintenance where you can request a
+particular revision merged in the affected version of Ruby.
+
+Each major version of Ruby has a release manager that should be assigned to
+handle backport requests. You can find the list of release managers on the
+{wiki}[https://bugs.ruby-lang.org/projects/ruby/wiki/ReleaseEngineering].
+
+=== Branch Maintainers
+
+A branch maintainer maintains a branch and releases a new release of Ruby. The
+branch depends on the associated version of Ruby, such as ruby_1_8_7 for
+version 1.8.7. The current branch maintainers are as follows:
+
+[trunk]
+  unnecessary
+[ruby_2_2]
+  Chikanaga Tomoyuki (nagachika)
+[ruby_2_1]
+  NAKAMURA Usaku (usa)
+[ruby_2_0_0]
+  NAKAMURA Usaku (usa)
+[ruby_1_9_3, ruby_1_9_2, ruby_1_9_1]
+  _unmaintained_
+[ruby_1_8]
+  _unmaintained_
+[ruby_1_8_7]
+  _unmaintained_
+[ruby_1_8_6 ...]
+  _unmaintained_
+
+== Running tests
+
+In order to help resolve existing issues and contributing patches to Ruby you
+need to be able to run the test suite.
+
+CRuby uses subversion for source control, you can find installation
+instructions and lots of great info to learn subversion on the
+{svnbook.red-bean.com}[http://svnbook.red-bean.com/]. For other resources see
+the {ruby-core documentation on
+ruby-lang.org}[http://www.ruby-lang.org/en/community/ruby-core/].
+
+This guide will use git for contributing.  The {git
+homepage}[http://git-scm.com/] has installation instructions with links to
+documentation for learning more about git. There is a mirror of the subversion
+repository on {github}[https://github.com/ruby/ruby].
+
+Install the prerequisite dependencies for building the CRuby interpreter to
+run tests.
+
+* C compiler
+* autoconf
+* bison
+* gperf
+* ruby - Ruby itself is prerequisite in order to build Ruby from source. It
+  can be 1.8.
+
+You should also have access to development headers for the following
+libraries, but these are not required:
+
+* Tcl/Tk
+* NDBM/QDBM
+* GDBM
+* OpenSSL
+* readline/editline(libedit)
+* zlib
+* libffi
+* libyaml
+* libexecinfo (FreeBSD)
+
+Now let's build CRuby:
+
+* Checkout the CRuby source code:
+
+    git clone git://github.com/ruby/ruby.git ruby-trunk
+
+* Generate the configuration files and build:
+
+    cd ruby-trunk
+    autoconf
+    mkdir build && cd build # its good practice to build outside of source dir
+    mkdir ~/.rubies # we will install to .rubies/ruby-trunk in our home dir
+    ../configure --prefix="${HOME}/.rubies/ruby-trunk"
+    make && make install
+
+After adding Ruby to your PATH, you should be ready to run the test suite:
+
+    make test
+
+You can also use +test-all+ to run all of the tests with the RUNRUBY
+interpreter just built. Use TESTS or RUNRUBYOPT to pass parameters, such as:
+
+    make test-all TESTS=-v
+
+This is also how you can run a specific test from our build dir:
+
+    make test-all TESTS=drb/test_drb.rb
+
+For older versions of Ruby you will need to run the build setup again after
+checking out the associated branch in git, for example if you wanted to
+checkout 1.9.3:
+
+    git clone git://github.com/ruby/ruby.git --branch ruby_1_9_3
+
+== Contributing Documentation
+
+If you're interested in contributing documentation directly to CRuby there is
+a wealth of information available at
+{documenting-ruby.org}[http://documenting-ruby.org/].
+
+There is also the {Ruby Reference
+Manual}[https://bugs.ruby-lang.org/projects/rurema] in Japanese.
+
+== Contributing A Patch
+
+=== Deciding what to patch
+
+Before you submit a patch, there are a few things you should know:
+
+* Pay attention to the maintenance policy for stable and maintained versions of Ruby.
+* Released versions in security mode will not merge feature changes.
+* Search for previous discussions on ruby-core to verify the maintenance policy
+* Patches must be distributed under Ruby's license.
+* This license may change in the future, you must join the discussion if you don't agree to the change
+
+To improve the chance your patch will be accepted please follow these simple rules:
+
+* Bug fixes should be committed on trunk first
+* Format of the patch file must be a unified diff (ie: diff -pu, svn diff, or git diff)
+* Don't introduce cosmetic changes
+* Follow the original coding style of the code
+* Don't mix different changes in one commit
+
+First thing you should do is check out the code if you haven't already:
+
+  git clone git://github.com/ruby/ruby.git ruby-trunk
+
+Now create a dedicated branch:
+
+  cd ruby-trunk
+  git checkout -b my_new_branch
+
+The name of your branch doesn't really matter because it will only exist on
+your local computer and won't be part of the official Ruby repository. It will
+be used to create patches based on the differences between your branch and
+trunk, or edge Ruby.
+
+=== Coding style
+
+Here are some general rules to follow when writing Ruby and C code for CRuby:
+
+* Indent 4 spaces for C with tabs for eight-space indentation (emacs default)
+* Indent 2 space tabs for Ruby
+* Do not use TABs in ruby codes
+* ANSI C style for 1.9+ for function declarations
+* Follow C90 (not C99) Standard
+* PascalStyle for class/module names.
+* UNDERSCORE_SEPARATED_UPPER_CASE for other constants.
+* Capitalize words.
+* ABBRs should be all upper case.
+* Do as others do
+
+=== ChangeLog
+
+Although not required, if you wish to add a ChangeLog entry for your change
+please note:
+
+You can use the following template for the ChangeLog entry on your commit:
+
+  Thu Jan  1 00:00:00 2004  Your Name  <yourmail@example.com>
+
+  	* filename (function): short description of this commit.
+  	  This should include your intention of this change.
+  	  [bug:#number] [mailinglist:number]
+
+  	* filename2 (function2): additional description for this file/function.
+
+This follows {GNU Coding Standards for Change
+Logs}[http://www.gnu.org/prep/standards/html_node/Change-Logs.html#Change-Logs],
+some other requirements and tips:
+
+* Timestamps must be in JST (+09:00) in the style as above.
+* Two spaces between the timestamp and your name. Two spaces between
+  your name and your mail address.
+* One blank line between the timestamp and the description.
+* Indent the description with TAB. 2nd line should begin with TAB+2SP.
+* Write a entry (*) for each change.
+* Refer to redmine issue or discussion on the mailing list.
+* For GitHub issues, use [GH-#] (such as [Fixes GH-234]
+* One blank line between entries.
+* Do as other committers do.
+
+You can generate the ChangeLog entry by running <code>make change</code>
+
+When you're ready to commit, copy your ChangeLog entry into the commit message,
+keeping the same formatting and select your files:
+
+    git commit ChangeLog path/to/files
+
+In the likely event that your branch becomes outdated, you will have to update
+your working branch:
+
+    git fetch origin
+    git rebase remotes/origin/master
+
+Now that you've got some code you want to contribute, let's get set up to
+generate a patch. Start by forking the github mirror, check the {github docs on
+forking}[https://help.github.com/articles/fork-a-repo] if you get stuck here.
+You will only need a github account if you intend to host your repository
+on github.
+
+Next copy the writable url for your fork and add it as a git remote, replace
+"my_username" with your github account name:
+
+    git remote add my_fork git@github.com:my_username/ruby.git
+    # Now we can push our branch to our fork
+    git push my_fork my_new_branch
+
+In order to generate a patch that you can upload to the bug tracker, we can use
+the github interface to review our changes just visit
+https://github.com/my_username/ruby/compare/trunk...my_new_branch
+
+Next, you can simply add '.patch' to the end of this URL and it will generate
+the patch for you, save the file to your computer and upload it to the bug
+tracker. Alternatively you can submit a pull request, but for the best chances
+to receive feedback add it is recommended you add it to redmine.
+
+Since git is a distributed system, you are welcome to host your git repository
+on any {publicly accessible hosting
+site}[https://git.wiki.kernel.org/index.php/GitHosting], including {hosting your
+own}[https://www.kernel.org/pub/software/scm/git/docs/user-manual.html#public-repositories]
+You may use the {'git format-patch'}[http://git-scm.com/docs/git-format-patch]
+command to generate patch files to upload to redmine.  You may also use
+the {'git request-pull'}[http://git-scm.com/docs/git-request-pull] command for
+formatting pull request messages to redmine.
diff --git a/doc/contributors.rdoc b/doc/contributors.rdoc
new file mode 100644
index 0000000000..ced4eb1cd0
--- /dev/null
+++ b/doc/contributors.rdoc
@@ -0,0 +1,778 @@
+= Contributors to Ruby
+
+The following list might be incomplete. Feel free to add your name if your
+patch was accepted into Ruby.
+
+== A
+
+Ayumu AIZAWA (ayumin)
+* committer
+
+AKIYOSHI, Masamichi (akiyoshi)
+* committer
+* He had maintained the VMS support on 2003-2004.
+
+Muhammad Ali
+* wrote rdoc for Fiber
+
+Minero Aoki (aamine)
+* committer
+* He is the maintainer of:
+  * fileutils
+  * net/http, net/https
+  * net/pop
+  * net/smtp
+  * racc
+  * ripper
+  * strscan
+
+Wakou Aoyama (wakou)
+* committer
+* He was the maintainer of some standard libraries.
+
+Koji Arai
+* committer
+
+arton
+* He is the distributor of ActiveScriptRuby and experimental 1.9.0-x installers for win32.
+* Wrote patches for win32ole, gc.c, tmpdir.rb
+
+== B
+
+Daniel Berger
+* a patch for irb
+* documentation
+* He wrote forwardable.rb
+
+David Black (dblack)
+* committer
+* He is the maintainer of scanf
+
+Ken Bloom
+* a patch for REXML.
+
+Oliver M. Bolzer
+* a patch for soap
+
+Alexey Borzenkov
+* a patch for mkmf.rb
+
+Richard Brown
+* a patch for configure.in
+
+Dirkjan Bussink
+* a patch for date.rb
+
+Daniel Bovensiepen
+* documentation
+* a patch for irb
+
+== C
+
+Brian Candler
+* a patch for configure.in, net/telnet
+
+keith cascio
+* a patch for optparse.rb
+
+Frederick Cheung
+* a patch for test/ruby/test_symbol.rb
+
+Christoph
+* patches for set.rb
+
+Sean Chittenden
+* pathces for net/http, cgi
+
+William D. Clinger
+* ruby_strtod is based on his paper.
+
+== D
+
+Ryan Davis (ryan)
+* committer
+* He wrote and is the maintainer of miniunit
+
+Guy Decoux (ts)
+* committer
+
+Zach Dennis
+
+Martin Duerst (duerst)
+* committer
+* M17N
+
+Paul Duncan
+* pathces for rdoc
+
+Alexander Dymo
+* a patch for lib/benchmark.rb
+
+== E
+
+Yusuke Endoh (mame)
+* committer
+* He wrote and is the maintainer of base64 library (1.9)
+* did much upon YARV compiler.
+
+erlercw
+* wrote Integer::gcd2
+
+== F
+
+Frank S.Fejes
+* a patch for net/pop
+
+Fundakowski Feldman
+* a patch for process.c
+
+Mauricio Fernandez
+* patches for parse.y
+
+David Flanagan (davidflanagan)
+* committer
+* M17N
+
+Takeyuki Fujioka (xibbar)
+* committer
+* He is the maintainer of cgi/*
+
+FUKUMOTO, Atsushi
+* a patch for tracer.rb
+
+Shota Fukumori (sorah)
+* committer
+* #4415 parallel unit/test
+
+Tadayoshi Funaba (tadf)
+* committer
+* He wrote and is the maintainer of
+  * date
+  * parsedate (1.8)
+* He ported rational.rb and complex.rb, which 1.8 contains, into rational.c and complex.c of 1.9.
+
+== G
+
+David M. Gay
+* ruby_strtod
+
+Florian Gilcher
+* documentation
+
+GOTOU, Kentaro (gotoken)
+* committer
+* He wrote benchmark.rb
+* He is the maintainer of:
+  * benchmark.rb
+  * open3
+
+GOTOU, Yuuzou (gotoyuzo)
+* committer
+
+James Edward Gray II (jeg2)
+* committer
+* He wrote the faster implementation of CSV and is the maintainer of csv.
+* Wrote documentation for rdoc
+
+== H
+
+Phil Hagelberg
+* patch for ruby-mode.el's documentation.
+
+Kirk Haines (wyhaines)
+* committer
+* the maintainer of ruby_1_8_6 branch
+
+Shinichiro Hamaji
+* fixed memory leaks (marshal.c, string.c)
+
+Shin-ichiro HARA
+* the developer and the sysop of ruby-{dev,list,core,talk} archive.
+* a patch for numeric.c
+
+Chris Heath (traumdeutung)
+* a patch for proc.c
+
+HIROKAWA Hisashi
+* fixed socket/socket.c
+
+Daniel Hob
+* He wrote:
+  * SMTP-TLS support for net/smtp.
+  * POP3S support
+
+Eric Hodel (drbrain)
+* committer
+* He is the maintainer of:
+  * rdoc
+  * ri
+  * rubygems
+
+Erik Hollensbe
+* a patch for delegate.rb
+
+Johan Holmberg
+* a patch for dir.c
+* documentation
+
+Erik Huelsmann
+
+Dae San Hwang
+* built a continuous integration environment on OpenSolaris.
+
+== I
+
+Nobuhiro IMAI
+* a patch for logger.rb
+
+"incorporate"
+* a patch for sprintf.c
+
+Keiju Ishitsuka (keiju)
+* committer
+* He wrote and is the maintainer of:
+  * cmath.rb (1.9)
+  * complex.rb (1.8)
+  * e2mmap.rb
+  * forwardable.rb
+  * irb
+  * mathn
+  * matrix.rb
+  * mutex_m.rb
+  * rational.rb (1.8)
+  * sync.rb
+  * shell/*
+  * thwait.rb
+  * tracer.rb
+
+== J
+
+Curtis Jackson
+* missing/dup2.c
+
+Alan Johnson
+* a patch for net/ftp
+
+Lyle Johnson
+* patches for nkf, bigdecimal, numeric.c
+
+== K
+
+Yoshihiro Kambayashi
+* a patch for enc/trans/single_byte.trans.
+* He wrote supports for some encodings.
+
+Yutaka Kanemoto
+* patches for common.mk, AIX AF_INET6 support
+
+Motoyuki Kasahara
+* He wrote getoptlong.rb
+
+Masahiro Kawato
+* a patch for shellwords.rb
+
+Wataru Kimura
+* a patch for configure.in
+
+Michael Klishin
+* patch for make help.
+
+Noritada Kobayashi
+* a patch for optparse.rb
+
+Shigeo Kobayashi (shigek)
+* committer
+* He is the maintainer of bigdecimal
+
+KONISHI, Hiromasa (H_Konishi)
+* committer
+* He had maintained the bcc32 support in 2004.
+
+Kornelius "murphy" Kalnbach
+* documentation
+
+K.Kosako (kosako)
+* committer
+* He wrote Oniguruma.
+
+Takehiro Kubo
+* patches for dl 64bit support.
+
+== L
+
+Marc-Andre Lafortune (marcandre)
+* committer
+* patches for hash.c, array.c, thread.c, enumc, string.c, range.c and rdoc documentation.
+
+Hongli Lai
+* improved pstore.rb
+* patch for tool/file2lastrev.rb.
+
+raspberry lemon
+* a patch for webrick/httpproxy.rb.
+
+Christian Loew
+* a patch for fileutils.rb
+
+== M
+
+Shugo Maeda (shugo)
+* committer
+* A system administrator of ruby-lang.org servers.
+* He wrote and is the maintainer of:
+  * monitor.rb
+  * net/ftp
+  * net/imap
+
+Stephan Maka (mathew)
+* documentation
+
+Yukihiro Matsumoto (matz)
+* Matz -- the founder, language designer of Ruby.
+* committer
+* Ruby itself, most of Ruby.
+* He is the maintainer of:
+  * singleton
+  * timeout
+  * gdbm
+  * sdbm
+
+Konrad Meyer
+* documentation
+
+Mib Software
+* missing/vsnprintf.c
+
+Todd C. Miller
+* missing/strlcat.c
+* missing/strlcpy.c
+
+MIYASAKA, Masaru
+* a patch for cgi.rb
+
+Stefan Monnier
+* regex.c was fixed with based on his Emacs21 patch.
+
+Marcel Moolenaar
+* patches for eval.c and gc.c.
+
+moonwolf
+* a patch for REXML, xmlrpc
+
+Hiroshi Moriyama
+* a patch for yaml.
+
+Kyosuke Morohashi
+* a patch for gem_prelude.rb
+
+Kenta Murata
+* patches for json, bignum.c
+
+Akinori MUSHA (knu)
+* committer
+* He wrote and is the maintainer of:
+  * abbrev.rb
+  * generator (1.8)
+  * enumerator (1.8)
+  * set
+  * ipaddr.rb
+  * digest/*
+  * syslog
+* He is the branch maintainer of ruby_1_8, the release manager of 1.8 series.
+
+== N
+
+Hidetoshi NAGAI (nagai)
+* committer
+* He is the maintainer of tk/*
+
+Nobuyoshi Nakada (nobu)
+* committer
+* a.k.a. the "patch monster"
+* He wrote and is the maintainer of:
+  * optparse
+  * stringio
+  * io/wait
+  * iconv
+
+Satoshi Nakagawa
+* patches for util.c
+
+Narihiro Nakamura (nari)
+* committer
+* a.k.a. authorNari
+* working at GC
+
+NAKAMURA, Hiroshi (nahi)
+* committer
+* He is the maintainer of:
+  * csv.rb (1.8)
+  * logger.rb
+  * soap/* (1.8)
+  * wsdl/* (1.8)
+  * xsd/* (1.8)
+
+NAKAMURA, Usaku (usa)
+* committer
+* a.k.a. unak
+* He is the maintainer of mswin32 and mswin64 support.
+
+NARUSE, Yui (naruse)
+* committer
+* a.k.a. "nurse"
+* Did much upon m17n.
+* He is the maintainer of:
+  * json
+  * nkf
+
+Christian Neukirchen
+* a patch for webrick/httputils
+
+Michael Neumann (mneumann)
+* committer
+* He is the maintainer of
+  * xmlrpc (1.8)
+  * gserver (1.8)
+
+NISHIO Hirokazu
+* wrote a patch for CVE-2010-0541
+
+Kazuhiro NISHIYAMA (kazu)
+* committer
+* a.k.a. znz
+
+Go Noguchi
+
+Martin Nordholts
+* misc/rdebug.el
+
+nmu
+* a patch for socket
+
+== O
+
+okkez
+* He is a sysop of the Ruby Reference Manual Renewal Project.
+* fixed ipaddr.rb, ext/etc
+
+Haruhiko Okumura
+* some of missing/* is based on his book:
+  * missing/erf.c
+  * missing/lgamma_r.c
+  * missing/tgamma.c
+
+OMAE, jun
+* a patch for debug.rb
+
+Eugene Ossintsev
+* documentation
+
+== P
+
+Heesob Park
+* a patch for win32/win32.c.
+
+pegacorn
+* a patch for instruby.rb
+
+== Q
+
+== R
+
+Gaston Ramos
+* documentation
+
+The Regents of the University of California
+* missing/crypt.c
+* missing/vsnprintf.c
+
+Sam Roberts
+* patch for socket
+* documentation
+
+Michal Rokos (michal)
+* committer
+* He was the maintainer of DJGPP support.
+
+rubikitch
+* a patch for io.c
+
+Marcus Rueckert
+* a patch for mkconfig.rb.
+
+Run Paint Run Run
+* patch for enc/unicode.c
+* documentation
+
+Sean Russell (ser)
+* committer
+* He wrote and is the maintainer of REXML.
+
+== S
+
+Kazuo Saito (ksaito)
+* committer
+* M17N
+
+Tadashi Saito
+* patches for test/ruby/test_math.rb, thread_*.c, bignum.c
+* working upon BigDecimal.
+* did much upon documentation
+
+Masahiro Sakai
+* a patch for io.c
+
+Laurent Sansonetti
+* a patch for tool/ytab.sed
+
+Jeff Saracco
+* documentation
+
+Koichi Sasada (ko1)
+* committer
+* He wrote YARV.
+
+Hugh Sasse
+* a patch for net/http
+* documentation
+
+Charlie Savage
+* a patch for win32/Makefile.sub
+
+Michael Scholz
+* a patch for ruby-mode.el
+
+Arthur Schreiber
+* patch for net/http and rdoc.
+
+Masatoshi SEKI (seki)
+* committer
+* He wrote and is the maintainer of:
+  * drb/*
+  * erb
+  * rinda
+
+Roman Shterenzon
+* a patch for open-uri.
+
+Kent Sibilev
+
+Gavin Sinclair (gsinclair)
+* committer
+
+John W. Small
+* He wrote gserver.rb
+
+Yuki Sonoda (yugui)
+* committer
+* She is the maintainer of man/* manual pages and is the release manager of 1.9 series.
+* She wrote prime.rb.
+* A developer and a sysop of redmine.ruby-lang.org.
+
+SOUMA, Yutaka
+* a patch for pack.c.
+
+Tatsuki Sugiura
+* WebDAV support for net/http
+
+Masaki Suketa (suke)
+* committer
+* He is the maintainer of win32ole
+
+sheepman
+* patches for ruby.c, thread.c, stringio, enum.c, webrick, net/http
+
+Siena. (siena)
+* committer
+
+Kirill A. Shutemov
+* a patch for parse.y
+
+Darren Smith
+* a patch for golf_prelude.rb
+
+Richard M. Stallman
+* missing/alloca.c
+
+Robin Stocker
+* documentation
+
+Adam Strzelecki
+* a patch for compile.c
+
+Masashi Sumi
+* improved net/pop.rb
+
+Eric Sunshine
+* NeXT OpenStep, Rhapsody support
+
+Kouhei Sutou (kou)
+* committer
+* He wrote and is the maintainer of rss/*
+
+David Symonds
+* documentation
+
+== T
+
+TAKANO Mitsuhiro (takano32)
+* committer
+* He is the maintainer of IA-64 support.
+* BigDecimal
+
+TAKAO, Kouji (kouji)
+* committer
+* He is the maintainer of readline.
+
+Nathaniel Talbott (ntalbott)
+* committer
+* He was the maintainer of test/unit, runit, rubyunit.
+
+TANAKA, Akira (akr)
+* committer
+* Did much upon m17n.
+* And he is the maintainer of:
+  * open-uri
+  * pathname
+  * pp
+  * resolv-replace
+  * resolv
+  * time
+  * tsort
+
+Takaaki Tateishi (ttate)
+* committer
+* He was the maintainer of dl
+
+Technorama Ltd. (technoroma)
+* committer
+* openssl
+
+Andrew Thompson
+* a patch for socket.c IRIX support.
+
+Dave Thomas (dave)
+* committer
+* a.k.a. the Pragmatic Programmer.
+* He wrote rdoc.
+
+Tietew
+* patches for win32 support
+
+Masahiro Tomita
+* a patch for cgi.rb
+
+Jakub Travnik
+* a patch for eval.c
+
+Tom Truscott
+* missing/crypt.c
+
+== U
+
+UEDA, Satoshi
+* a patch for uri
+
+Takaaki Uematsu (uema2)
+* committer
+* He was the maintainer of WinCE support.
+
+UENO, Katsuhiro (katsu)
+* committer
+* He is the maintainer of zlib
+
+Hajimu UMEMOTO
+* He wrote ipaddr.rb
+
+URABE, Shyouhei (shyouhei)
+* committer
+* a.k.a. mput.
+* He is the branch maintainer of ruby_1_8_6 and ruby_1_8_7
+* and is the release manager of 1.8.x-pXXX.
+
+== V
+
+Joel VanderWerf
+* a patch for numeric.c
+
+Peter Vanbroekhoven
+
+Corinna Vinschen
+
+== W
+
+wanabe (wanabe)
+* committer
+* fixed YARV and Oniguruma.
+
+Chun Wang
+* a patch for time.rb
+
+WATANABE, Hirofumi (eban)
+* committer
+* He is the maintainer of
+  * ftools (1.8)
+  * tmpdir
+  * un
+  * Win32API
+
+WATANABE, Tetsuya
+* a patch for ruby.c
+
+William Webber (wew)
+* committer
+
+Jim Weirich (jim)
+* committer
+* He wrote Rake.
+
+Nathan Weizenbaum
+* fixed misc/ruby-mode.el.
+
+why the lukky stiff (why)
+* committer
+* He is the maintainer of syck
+
+Caley Woods
+* documentation
+
+Gary Wright
+* documentation
+
+== X
+
+== Y
+
+Akira Yamada (akira)
+* committer
+* He is the maintainer of ruby related packages at Debian project.
+
+Keita Yamaguchi
+* patches for enum.c, parse.y
+* documentation
+
+Hirokazu Yamamoto (ocean)
+* committer
+
+Hirotaka Yoshioka
+* a patch for improving SEGV handling
+
+== Z
+
+Aristarkh A Zagorodnikov
+* a patch for io.c
+
+Alexander Zavorine
+* committer
+* He is the maintainer for Symbian OS.
+
+Chiyuan Zhang
+* a patch for misc/ruby-mode.el.
+
+Dee Zsombor (zunda)
+* a patch for thread_pthread.c
+
+Dan Zwell
+* a patch for net/pop
+
+
diff --git a/doc/dtrace_probes.rdoc b/doc/dtrace_probes.rdoc
new file mode 100644