0 files changed, 0 insertions, 0 deletions
diff --git a/.document b/.document
index eeb565b08b..9a5067bc52 100644
--- a/.document
+++ b/.document
@@ -5,13 +5,10 @@
 
 # Process all the C source files
 *.c
-*.y
 
 # prelude
 prelude.rb
 
-rbconfig.rb
-
 # the lib/ directory (which has its own .document file)
 lib
 
@@ -19,9 +16,13 @@ lib
 ext
 
 # rdoc files
+ChangeLog
+
 NEWS
 
-README.md
-README.ja.md
+README
+README.EXT
+README.EXT.ja
+README.ja
 
 doc
diff --git a/.editorconfig b/.editorconfig
index 49cc692091..67abf4b978 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -2,23 +2,15 @@ root = true
 
 [*]
 end_of_line = lf
-indent_size = 4
-indent_style = tab
 insert_final_newline = true
-tab_width = 8
 trim_trailing_whitespace = true
+tab_width = 8
+indent_style = tab
+indent_size = 4
 
-[*.bat]
+[**.bat]
 end_of_line = crlf
 
-[*.gemspec]
-indent_size = 2
-indent_style = space
-
-[*.rb]
-indent_size = 2
+[**.rb]
 indent_style = space
-
-[*.yml]
 indent_size = 2
-indent_style = space
diff --git a/.gdbinit b/.gdbinit
index a188ffa172..78ab191c40 100644
--- a/.gdbinit
+++ b/.gdbinit
@@ -14,14 +14,14 @@ define ruby_gdb_init
   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 ruby_dummy_gdb_enums.special_consts
+  end
   if (VALUE)($arg0) & RUBY_FIXNUM_FLAG
     printf "FIXNUM: %ld\n", (long)($arg0) >> 1
   else
@@ -50,7 +50,7 @@ define rp
     end
   else
   set $flags = ((struct RBasic*)($arg0))->flags
-  if ($flags & RUBY_FL_PROMOTED) == RUBY_FL_PROMOTED
+  if ($flags & RUBY_FL_PROMOTED)
     printf "[PROMOTED] "
   end
   if ($flags & RUBY_T_MASK) == RUBY_T_NONE
@@ -63,15 +63,7 @@ define rp
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_OBJECT
     printf "%sT_OBJECT%s: ", $color_type, $color_end
-    print ((struct RObject *)($arg0))->basic
-    if ($flags & ROBJECT_EMBED)
-      print/x *((VALUE*)((struct RObject*)($arg0))->as.ary) @ (ROBJECT_EMBED_LEN_MAX+0)
-    else
-      print (((struct RObject *)($arg0))->as.heap)
-      if (((struct RObject*)($arg0))->as.heap.numiv) > 0
-        print/x *(((struct RObject*)($arg0))->as.heap.ivptr) @ (((struct RObject*)($arg0))->as.heap.numiv)
-      end
-    end
+    print (struct RObject *)($arg0)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_CLASS
     printf "%sT_CLASS%s%s: ", $color_type, ($flags & RUBY_FL_SINGLETON) ? "*" : "", $color_end
@@ -97,15 +89,14 @@ define rp
     set $regsrc = ((struct RRegexp*)($arg0))->src
     set $rsflags = ((struct RBasic*)$regsrc)->flags
     printf "%sT_REGEXP%s: ", $color_type, $color_end
-    set $len = ($rsflags & RUBY_FL_USER1) ? \
-            ((struct RString*)$regsrc)->as.heap.len : \
-            (($rsflags & (RUBY_FL_USER2|RUBY_FL_USER3|RUBY_FL_USER4|RUBY_FL_USER5|RUBY_FL_USER6)) >> RUBY_FL_USHIFT+2)
     set print address off
-    output *(char *)(($rsflags & RUBY_FL_USER1) ? \
+    output (char *)(($rsflags & RUBY_FL_USER1) ? \
 	    ((struct RString*)$regsrc)->as.heap.ptr : \
-	    ((struct RString*)$regsrc)->as.ary) @ $len
+	    ((struct RString*)$regsrc)->as.ary)
     set print address on
-    printf " len:%ld ", $len
+    printf " len:%ld ", ($rsflags & RUBY_FL_USER1) ? \
+            ((struct RString*)$regsrc)->as.heap.len : \
+            (($rsflags & (RUBY_FL_USER2|RUBY_FL_USER3|RUBY_FL_USER4|RUBY_FL_USER5|RUBY_FL_USER6)) >> RUBY_FL_USHIFT+2)
     if $flags & RUBY_FL_USER6
       printf "(none) "
     end
@@ -126,7 +117,7 @@ define rp
       if ($len == 0)
 	printf "{(empty)} "
       else
-	print/x *((VALUE*)((struct RArray*)($arg0))->as.ary) @ $len
+	output/x *((VALUE*)((struct RArray*)($arg0))->as.ary) @ $len
 	printf " "
       end
     else
@@ -142,7 +133,7 @@ define rp
       if ($len == 0)
 	printf "{(empty)} "
       else
-	print/x *((VALUE*)((struct RArray*)($arg0))->as.heap.ptr) @ $len
+	output/x *((VALUE*)((struct RArray*)($arg0))->as.heap.ptr) @ $len
 	printf " "
       end
     end
@@ -160,17 +151,28 @@ define rp
     print (struct RHash *)($arg0)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_STRUCT
-    set $len = (($flags & (RUBY_FL_USER1|RUBY_FL_USER2)) ? \
+    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)
-    printf "%sT_STRUCT%s: len=%ld ", $color_type, $color_end, $len
     print (struct RStruct *)($arg0)
-    output/x *(($flags & (RUBY_FL_USER1|RUBY_FL_USER2)) ? \
-              ((struct RStruct *)($arg0))->as.ary : \
-              ((struct RStruct *)($arg0))->as.heap.ptr) @ $len
+    x/xw (($flags & (RUBY_FL_USER1|RUBY_FL_USER2)) ? \
+          ((struct RStruct *)($arg0))->as.ary : \
+          ((struct RStruct *)($arg0))->as.heap.ptr)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_BIGNUM
-    rp_bignum $arg0
+    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) : \
+       ((struct RBignum*)($arg0))->as.heap.len)
+    if $flags & RUBY_FL_USER2
+      printf "(embed) "
+    end
+    print (struct RBignum *)($arg0)
+    x/xw (($flags & RUBY_FL_USER2) ? \
+          ((struct RBignum*)($arg0))->as.ary : \
+          ((struct RBignum*)($arg0))->as.heap.digits)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_RATIONAL
     printf "%sT_RATIONAL%s: ", $color_type, $color_end
@@ -209,46 +211,12 @@ define rp
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_SYMBOL
     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 $id_fstr
+    print (struct RBasic *)($arg0)
   else
   if ($flags & RUBY_T_MASK) == RUBY_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)&RUBY_IMEMO_MASK)
-    printf "): "
-    rp_imemo $arg0
-  else
   if ($flags & RUBY_T_MASK) == RUBY_T_NODE
     printf "%sT_NODE%s(", $color_type, $color_end
     output (enum node_type)(($flags&RUBY_NODE_TYPEMASK)>>RUBY_NODE_TYPESHIFT)
@@ -293,7 +261,6 @@ define rp
   end
   end
   end
-  end
 end
 document rp
   Print a Ruby's VALUE.
@@ -325,9 +292,6 @@ define rp_id
   if $id == idLTLT
     printf "(:<<)\n"
   else
-  if $id == idGTGT
-    printf "(:>>)\n"
-  else
   if $id == idLE
     printf "(:<=)\n"
   else
@@ -355,18 +319,6 @@ define rp_id
   if $id == idASET
     printf "(:[]=)\n"
   else
-  if $id == idCOLON2
-    printf "(:'::')\n"
-  else
-  if $id == idANDOP
-    printf "(:&&)\n"
-  else
-  if $id == idOROP
-    printf "(:||)\n"
-  else
-  if $id == idANDDOT
-    printf "(:&.)\n"
-  else
     if $id <= tLAST_OP_ID
       printf "O"
     else
@@ -398,13 +350,12 @@ define rp_id
       end
     end
     printf "(%ld): ", $id
-    print_id $id
-    echo \n
-  end
-  end
-  end
-  end
-  end
+    rb_numtable_entry global_symbols.id_str $id
+    if $rb_numtable_rec
+      rp_string $rb_numtable_rec
+    else
+      echo undef\n
+    end
   end
   end
   end
@@ -427,35 +378,16 @@ document rp_id
   Print an ID.
 end
 
-define output_string
+define rp_string
   set $flags = ((struct RBasic*)($arg0))->flags
-  set $len = ($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 $len > 0
-    output *(char *)(($flags & RUBY_FL_USER1) ? \
+  set print address off
+  output (char *)(($flags & RUBY_FL_USER1) ? \
 	    ((struct RString*)($arg0))->as.heap.ptr : \
-	    ((struct RString*)($arg0))->as.ary) @ $len
-  else
-    output ""
-  end
-end
-
-define print_string
-  set $flags = ((struct RBasic*)($arg0))->flags
-  set $len = ($flags & RUBY_FL_USER1) ? \
+	    ((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 $len > 0
-    printf "%s", *(char *)(($flags & RUBY_FL_USER1) ? \
-	    ((struct RString*)($arg0))->as.heap.ptr : \
-	    ((struct RString*)($arg0))->as.ary) @ $len
-  end
-end
-
-define rp_string
-  output_string $arg0
-  printf " bytesize:%ld ", $len
   if !($flags & RUBY_FL_USER1)
     printf "(embed) "
   else
@@ -486,109 +418,20 @@ document rp_string
   Print the content of a String.
 end
 
-define rp_bignum
-  set $flags = ((struct RBignum*)($arg0))->basic.flags
-  set $len = (($flags & RUBY_FL_USER2) ? \
-       ($flags & (RUBY_FL_USER5|RUBY_FL_USER4|RUBY_FL_USER3)) >> (RUBY_FL_USHIFT+3) : \
-       ((struct RBignum*)($arg0))->as.heap.len)
-  printf "%sT_BIGNUM%s: sign=%d len=%ld ", $color_type, $color_end, \
-         (($flags & RUBY_FL_USER1) != 0), $len
-  if $flags & RUBY_FL_USER2
-    printf "(embed) "
-  end
-  print (struct RBignum *)($arg0)
-  set $ptr = (($flags & RUBY_FL_USER2) ? \
-              ((struct RBignum*)($arg0))->as.ary : \
-              ((struct RBignum*)($arg0))->as.heap.digits)
-  set $len = $len-1
-  printf "0x%x", $ptr[$len]
-  while $len > 0
-    set $len = $len-1
-    set $val = $ptr[$len]
-    set $w = sizeof($ptr[0])
-    printf "_"
-    if $w > 8
-      printf "%.32x", $val
-    else
-    if $w > 4
-      printf "%.16x", $val
-    else
-    if $w > 2
-      printf "%.8x", $val
-    else
-    if $w > 1
-      printf "%.4x", $val
-    else
-      printf "%.2x", $val
-    end
-    end
-    end
-    end
-  end
-  printf "\n"
-end
-document rp_bignum
-  Print the content of a Bignum.
-end
-
 define rp_class
   printf "(struct RClass *) %p", (void*)$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 $arg0
-  print/x *(struct RClass *)($arg0)
+  print *(struct RClass *)($arg0)
   print *((struct RClass *)($arg0))->ptr
 end
 document rp_class
   Print the content of a Class/Module.
 end
 
-define rp_imemo
-  set $flags = (enum imemo_type)((((struct RBasic *)($arg0))->flags >> RUBY_FL_USHIFT) & RUBY_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
-  if $flags == imemo_ment
-    printf "(rb_method_entry_t *) %p\n", (void*)$arg0
-    print *(rb_method_entry_t *)$arg0
-  else
-  if $flags == imemo_iseq
-    printf "(rb_iseq_t *) %p\n", (void*)$arg0
-    print *(rb_iseq_t *)$arg0
-  else
-    printf "(struct RIMemo *) %p\n", (void*)$arg0
-    print *(struct RIMemo *)$arg0
-  end
-  end
-  end
-  end
-  end
-  end
-  end
-end
-document rp_imemo
-  Print the content of a memo
-end
-
 define nd_type
   print (enum node_type)((((NODE*)($arg0))->flags&RUBY_NODE_TYPEMASK)>>RUBY_NODE_TYPESHIFT)
 end
@@ -867,12 +710,6 @@ define nd_tval
   rp ($arg0).u2.value
 end
 
-define nd_tree
-  set $buf = (struct RString *)rb_str_buf_new(0)
-  call dump_node((VALUE)($buf), rb_str_tmp_new(0), 0, ($arg0))
-  printf "%s\n", $buf->as.heap.ptr
-end
-
 define rb_p
   call rb_p($arg0)
 end
@@ -894,7 +731,7 @@ define rb_numtable_entry
       end
     end
   else
-    set $rb_numtable_p = $rb_numtable_tbl->as.big.bins[st_numhash($rb_numtable_id) % $rb_numtable_tbl->num_bins]
+    set $rb_numtable_p = $rb_numtable_tbl->as.big.bins[$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
@@ -908,7 +745,6 @@ define rb_numtable_entry
 end
 
 define rb_id2name
-  ruby_gdb_init
   printf "%sID%s: ", $color_type, $color_end
   rp_id $arg0
 end
@@ -921,10 +757,10 @@ 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_wrapper->tbl $rb_method_entry_id
+    rb_numtable_entry $rb_method_entry_klass->m_tbl $rb_method_entry_id
     set $rb_method_entry_me = (rb_method_entry_t *)$rb_numtable_rec
     if !$rb_method_entry_me
-      set $rb_method_entry_klass = (struct RClass *)RCLASS_SUPER($rb_method_entry_klass)
+      set $rb_method_entry_klass = (struct RClass *)$rb_method_entry_klass->ptr->super
     end
   end
   if $rb_method_entry_me
@@ -940,7 +776,8 @@ end
 
 define rb_classname
   # up to 128bit int
-  set $rb_classname = rb_mod_name($arg0)
+  set $rb_classname_permanent = "0123456789ABCDEF"
+  set $rb_classname = classname($arg0, $rb_classname_permanent)
   if $rb_classname != RUBY_Qnil
     rp $rb_classname
   else
@@ -952,7 +789,7 @@ define rb_ancestors
   set $rb_ancestors_module = $arg0
   while $rb_ancestors_module
     rp_class $rb_ancestors_module
-    set $rb_ancestors_module = RCLASS_SUPER($rb_ancestors_module)
+    set $rb_ancestors_module = ((struct RClass *)($rb_ancestors_module))->ptr.super
   end
 end
 document rb_ancestors
@@ -989,7 +826,7 @@ define iseq
 end
 
 define rb_ps
-  rb_ps_vm ruby_current_vm_ptr
+  rb_ps_vm ruby_current_vm
 end
 document rb_ps
 Dump all threads and their callstacks
@@ -997,273 +834,33 @@ end
 
 define rb_ps_vm
   print $ps_vm = (rb_vm_t*)$arg0
-  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
+  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
-    set $ps_thread_ln = $ps_thread_ln->next
-  end
-end
-document rb_ps_vm
-Dump all threads in a (rb_vm_t*) and their callstacks
-end
-
-define print_lineno
-  set $cfp = $arg0
-  set $iseq = $cfp->iseq
-  set $pos = $cfp->pc - $iseq->body->iseq_encoded
-  if $pos != 0
-    set $pos = $pos - 1
-  end
-
-  set $i = 0
-  set $size = $iseq->body->insns_info_size
-  set $table = $iseq->body->insns_info
-  #printf "size: %d\n", $size
-  if $size == 0
   else
-    set $i = 1
-    while $i < $size
-      #printf "table[%d]: position: %d, line: %d, pos: %d\n", $i, $table[$i].position, $table[$i].line_no, $pos
-      if $table[$i].position > $pos
-        loop_break
-      end
-      set $i = $i + 1
-      if $table[$i].position == $pos
-        loop_break
-      end
+    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
     end
-    printf "%d", $table[$i-1].line_no
   end
 end
-
-define check_method_entry
-  set $imemo = (struct RBasic *)$arg0
-  if $imemo != RUBY_Qfalse
-    set $type = ($imemo->flags >> 12) & 0x07
-    if $type == imemo_ment
-      set $me = (rb_callable_method_entry_t *)$imemo
-    else
-    if $type == imemo_svar
-      set $imemo = ((struct vm_svar *)$imemo)->cref_or_me
-      check_method_entry $imemo
-    end
-    end
-  end
-end
-
-define print_id
-  set $id = $arg0
-  # rb_id_to_serial
-  if $id > tLAST_OP_ID
-    set $serial = (rb_id_serial_t)($id >> RUBY_ID_SCOPE_SHIFT)
-  else
-    set $serial = (rb_id_serial_t)$id
-  end
-  if $serial && $serial <= global_symbols.last_id
-    set $idx = $serial / ID_ENTRY_UNIT
-    set $ids = (struct RArray *)global_symbols.ids
-    set $flags = $ids->basic.flags
-    if ($flags & RUBY_FL_USER1)
-      set $idsptr = $ids->as.ary
-      set $idslen = (($flags & (RUBY_FL_USER3|RUBY_FL_USER4)) >> (RUBY_FL_USHIFT+3))
-    else
-      set $idsptr = $ids->as.heap.ptr
-      set $idslen = $ids->as.heap.len
-    end
-    if $idx < $idslen
-      set $t = 0
-      set $ary = (struct RArray *)$idsptr[$idx]
-      if $ary != RUBY_Qnil
-        set $flags = $ary->basic.flags
-        if ($flags & RUBY_FL_USER1)
-          set $aryptr = $ary->as.ary
-          set $arylen = (($flags & (RUBY_FL_USER3|RUBY_FL_USER4)) >> (RUBY_FL_USHIFT+3))
-        else
-          set $aryptr = $ary->as.heap.ptr
-          set $arylen = $ary->as.heap.len
-        end
-        set $result = $aryptr[($serial % ID_ENTRY_UNIT) * ID_ENTRY_SIZE + $t]
-	if $result != RUBY_Qnil
-          print_string $result
-	else
-	  echo undef
-	end
-      end
-    end
-  end
-end
-
-define print_pathobj
-  set $flags = ((struct RBasic*)($arg0))->flags
-  if ($flags & RUBY_T_MASK) == RUBY_T_STRING
-    print_string $arg0
-  end
-  if ($flags & RUBY_T_MASK) == RUBY_T_ARRAY
-    if $flags & RUBY_FL_USER1
-      set $str = ((struct RArray*)($arg0))->as.ary[0]
-    else
-      set $str = ((struct RArray*)($arg0))->as.heap.ptr[0]
-    end
-    print_string $str
-  end
+document rb_ps_vm
+Dump all threads in a (rb_vm_t*) and their callstacks
 end
 
 define rb_ps_thread
   set $ps_thread = (struct RTypedData*)$arg0
-  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
-  set $cfp = $ps_thread_th->ec->cfp
-  set $cfpend = (rb_control_frame_t *)($ps_thread_th->ec->vm_stack + $ps_thread_th->ec->vm_stack_size)-1
-  while $cfp < $cfpend
-    if $cfp->iseq
-      if !((VALUE)$cfp->iseq & RUBY_IMMEDIATE_MASK) && (((imemo_ifunc << RUBY_FL_USHIFT) | RUBY_T_IMEMO)==$cfp->iseq->flags & ((RUBY_IMEMO_MASK << RUBY_FL_USHIFT) | RUBY_T_MASK))
-        printf "%d:ifunc ", $cfpend-$cfp
-        set print symbol-filename on
-        output/a $cfp->iseq.body
-        set print symbol-filename off
-        printf "\n"
-      else
-      if $cfp->pc
-        set $location = $cfp->iseq->body->location
-        printf "%d:", $cfpend-$cfp
-        print_pathobj $location.pathobj
-        printf ":"
-        print_lineno $cfp
-        printf ":in `"
-        print_string $location.label
-        printf "'\n"
-      else
-        printf "%d: ???.rb:???:in `???'\n", $cfpend-$cfp
-      end
-      end
-    else
-      # if VM_FRAME_TYPE($cfp->flag) == VM_FRAME_MAGIC_CFUNC
-      set $ep = $cfp->ep
-      if ($ep[0] & 0xffff0001) == 0x55550001
-        #define VM_ENV_FLAG_LOCAL 0x02
-        #define VM_ENV_PREV_EP(ep)   GC_GUARDED_PTR_REF(ep[VM_ENV_DATA_INDEX_SPECVAL])
-        set $me = 0
-        set $env_specval = $ep[-1]
-        set $env_me_cref = $ep[-2]
-        while ($env_specval & 0x02) != 0
-          check_method_entry $env_me_cref
-          if $me != 0
-            loop_break
-          end
-          set $ep = $ep[0]
-          set $env_specval = $ep[-1]
-          set $env_me_cref = $ep[-2]
-        end
-        if $me == 0
-          check_method_entry $env_me_cref
-        end
-        printf "%d:", $cfpend-$cfp
-        set print symbol-filename on
-        output/a $me->def->body.cfunc.func
-        set print symbol-filename off
-        set $mid = $me->def->original_id
-        printf ":in `"
-        print_id $mid
-        printf "'\n"
-      else
-        printf "%d:unknown_frame:???:in `???'\n", $cfpend-$cfp
-      end
-    end
-    set $cfp = $cfp + 1
-  end
-end
-
-define rb_count_objects
-  set $objspace = ruby_current_vm_ptr->objspace
-  set $counts_00 = 0
-  set $counts_01 = 0
-  set $counts_02 = 0
-  set $counts_03 = 0
-  set $counts_04 = 0
-  set $counts_05 = 0
-  set $counts_06 = 0
-  set $counts_07 = 0
-  set $counts_08 = 0
-  set $counts_09 = 0
-  set $counts_0a = 0
-  set $counts_0b = 0
-  set $counts_0c = 0
-  set $counts_0d = 0
-  set $counts_0e = 0
-  set $counts_0f = 0
-  set $counts_10 = 0
-  set $counts_11 = 0
-  set $counts_12 = 0
-  set $counts_13 = 0
-  set $counts_14 = 0
-  set $counts_15 = 0
-  set $counts_16 = 0
-  set $counts_17 = 0
-  set $counts_18 = 0
-  set $counts_19 = 0
-  set $counts_1a = 0
-  set $counts_1b = 0
-  set $counts_1c = 0
-  set $counts_1d = 0
-  set $counts_1e = 0
-  set $counts_1f = 0
-  set $total = 0
-  set $i = 0
-  while $i < $objspace->heap_pages.allocated_pages
-    printf "\rcounting... %d/%d", $i, $objspace->heap_pages.allocated_pages
-    set $page = $objspace->heap_pages.sorted[$i]
-    set $p = $page->start
-    set $pend = $p + $page->total_slots
-    while $p < $pend
-      set $flags = $p->as.basic.flags & 0x1f
-      eval "set $counts_%02x = $counts_%02x + 1", $flags, $flags
-      set $p = $p + 1
-    end
-    set $total = $total + $page->total_slots
-    set $i = $i + 1
-  end
-  printf "\rTOTAL: %d, FREE: %d\n", $total, $counts_00
-  printf "T_OBJECT: %d\n", $counts_01
-  printf "T_CLASS: %d\n", $counts_02
-  printf "T_MODULE: %d\n", $counts_03
-  printf "T_FLOAT: %d\n", $counts_04
-  printf "T_STRING: %d\n", $counts_05
-  printf "T_REGEXP: %d\n", $counts_06
-  printf "T_ARRAY: %d\n", $counts_07
-  printf "T_HASH: %d\n", $counts_08
-  printf "T_STRUCT: %d\n", $counts_09
-  printf "T_BIGNUM: %d\n", $counts_0a
-  printf "T_FILE: %d\n", $counts_0b
-  printf "T_DATA: %d\n", $counts_0c
-  printf "T_MATCH: %d\n", $counts_0d
-  printf "T_COMPLEX: %d\n", $counts_0e
-  printf "T_RATIONAL: %d\n", $counts_0f
-  #printf "UNKNOWN_10: %d\n", $counts_10
-  printf "T_NIL: %d\n", $counts_11
-  printf "T_TRUE: %d\n", $counts_12
-  printf "T_FALSE: %d\n", $counts_13
-  printf "T_SYMBOL: %d\n", $counts_14
-  printf "T_FIXNUM: %d\n", $counts_15
-  printf "T_UNDEF: %d\n", $counts_16
-  #printf "UNKNOWN_17: %d\n", $counts_17
-  #printf "UNKNOWN_18: %d\n", $counts_18
-  #printf "UNKNOWN_19: %d\n", $counts_19
-  printf "T_IMEMO: %d\n", $counts_1a
-  printf "T_NODE: %d\n", $counts_1b
-  printf "T_ICLASS: %d\n", $counts_1c
-  printf "T_ZOMBIE: %d\n", $counts_1d
-  #printf "UNKNOWN_1E: %d\n", $counts_1e
-  printf "T_MASK: %d\n", $counts_1f
-end
-document rb_count_objects
-  Counts all objects grouped by type.
+  set $ps_thread_id = $arg1
+  print $ps_thread_th = (rb_thread_t*)$ps_thread->data
 end
 
 # Details: https://bugs.ruby-lang.org/projects/ruby-trunk/wiki/MachineInstructionsTraceWithGDB
@@ -1282,26 +879,3 @@ 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
-
-define dump_node
-  set $str = rb_parser_dump_tree($arg0, 0)
-  set $flags = ((struct RBasic*)($str))->flags
-  printf "%s", (char *)(($flags & RUBY_FL_USER1) ? \
-                        ((struct RString*)$str)->as.heap.ptr : \
-                        ((struct RString*)$str)->as.ary)
-end
diff --git a/.gitattributes b/.gitattributes
deleted file mode 100644
index 6ca2f89462..0000000000
--- a/.gitattributes
+++ /dev/null
@@ -1,6 +0,0 @@
-*.gemspec diff=ruby
-*.rb diff=ruby
-bin svn-properties=svn:ignore=ruby
-bin/* diff=ruby
-tool/update-deps diff=ruby
-tool/make-snapshot diff=ruby
diff --git a/.gitignore b/.gitignore
index efc7fd5864..9cd98beee1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,56 +1,39 @@
 *-*-*.def
-*-*-*.exp
-*-*-*.lib
 *.a
 *.bak
-*.bc
 *.dSYM
 *.dmyh
 *.dylib
 *.elc
-*.i
 *.inc
 *.log
 *.o
-*.obj
-*.old
 *.orig
-*.pdb
 *.rej
-*.s
 *.sav
 *.swp
-*.yarb
 *~
 .*-*
 .*.list
 .*.time
 .DS_Store
-.bundle
 .ccmalloc
 .ext
 .pc
 .ppack
 .svn
 Makefile
-cygruby*.def
 extconf.h
 y.output
 y.tab.c
-*.gcda
-*.gcno
-*.gcov
-lcov*.info
 
 # /
-/*-fake.rb
-/*.dll
-/*.exe
-/*.res
 /*.pc
-/*.rc
 /*_prelude.c
 /COPYING.LIB
+/ChangeLog-1.8.0
+/ChangeLog.pre-alpha
+/ChangeLog.pre1_1
 /Doxyfile
 /GNUmakefile
 /README.atheos
@@ -61,7 +44,6 @@ lcov*.info
 /autom4te*.cache
 /automake
 /beos
-/bmlog-*
 /breakpoints.gdb
 /config.cache
 /config.h
@@ -69,13 +51,6 @@ lcov*.info
 /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
@@ -83,9 +58,6 @@ lcov*.info
 /goruby
 /id.[ch]
 /largefile.h
-/lcov-c-out
-/lcov-rb-out
-/lcov-out
 /lex.c
 /libruby*.*
 /miniprelude.c
@@ -101,7 +73,6 @@ lcov*.info
 /ppack
 /prelude.c
 /preview
-/probes.dmyh
 /probes.h
 /rbconfig.rb
 /rename2.h
@@ -110,63 +81,31 @@ lcov*.info
 /riscos
 /rubicon
 /ruby
-/ruby-runner
-/ruby-runner.h
 /ruby-man.rd.gz
-/run.gdb
 /sizes.c
 /test.rb
-/test-coverage.dat
 /tmp
 /transdb.h
 /uncommon.mk
 /verconf.h
-/verconf.mk
 /web
 /yasmdata.rb
 
 # /benchmark/
-/benchmark/bm_require.data
 /benchmark/bmx_*.rb
-/benchmark/fasta.output.*
-/benchmark/wc.input
-
-/enc/*.def
-/enc/*.exp
-/enc/*.lib
-/enc/jis/props.h
-/enc/unicode/data
 
 # /enc/trans/
 /enc/trans/*.c
-/enc/trans/*.def
-/enc/trans/*.exp
-/enc/trans/*.lib
-/enc/trans/.time
-
-# /exe/
-/exe/ruby
-/exe/.time
 
 # /ext/
 /ext/extinit.c
-/ext/configure-ext.mk
-/ext/*/exts.mk
-
-# /ext/-test-/win32/dln/
-/ext/-test-/win32/dln/dlntest.dll
-/ext/-test-/win32/dln/dlntest.exp
-/ext/-test-/win32/dln/dlntest.lib
-
-# /ext/etc/
-/ext/etc/constdefs.h
 
-# /ext/fiddle/
-/ext/fiddle/libffi-*
+# /ext/dl/callback/
+/ext/dl/callback/callback-*.c
+/ext/dl/callback/callback.c
 
 # /ext/rbconfig/
 /ext/rbconfig/sizeof/sizes.c
-/ext/rbconfig/sizeof/limits.c
 
 # /ext/ripper/
 /ext/ripper/eventids1.c
@@ -180,13 +119,12 @@ lcov*.info
 /ext/socket/constdefs.h
 /ext/socket/constdefs.c
 
-# /gems
-/gems/*.gem
-/gems/src
-/gems/*-*
+# /ext/tk/
+/ext/tk/config_list
 
-# /spec/bundler
-/.rspec_status
+# /spec/
+/spec/mspec
+/spec/rubyspec
 
 # /tool/
 /tool/config.guess
diff --git a/.travis.yml b/.travis.yml
index 2a86e35be0..8db00587d6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,87 +16,65 @@
 #
 # is also a good place to look at.
 
+# Language specification.
 language: c
-dist: trusty
-
-# temporary workaround for https://github.com/travis-ci/travis-ci/issues/8892
-sudo: required
-group: deprecated-2017Q4
 
+# 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:
-  - "CONFIG_FLAG="
-  - "JOBS=-j`nproc`"
+  - "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"
 
+# 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:
-  - "echo JOBS=$JOBS"
-  - "uname -a"
-  - "uname -r"
-  - "rm -fr .ext autom4te.cache"
-  - "echo $TERM"
-  - "> config.status"
-  - "sed -f tool/prereq.status Makefile.in common.mk > Makefile"
-  - "make update-config_files"
-  - "make touch-unicode-files"
-  - "make -s $JOBS srcs UNICODE_FILES=."
-  - "requests=; for req in ${RUBYSPEC_PULL_REQUEST//,/ }; do
-      requests=\"$requests +refs/pull/$req/merge:\";
-    done"
-  - "${requests:+git -C spec/ruby -c user.email=none -c user.name=none pull --no-edit origin $requests}"
-  - "${requests:+git -C spec/ruby log --oneline origin/master..@}"
-  - "rm config.status Makefile rbconfig.rb .rbconfig.time"
-  - "mkdir build config_1st config_2nd"
-  - "chmod -R a-w ."
-  - "chmod u+w build config_1st config_2nd"
-  - "cd build"
-  - "../configure -C --disable-install-doc --with-gcc=$CC $CONFIG_FLAG"
-  - "cp -pr config.cache config.status .ext/include ../config_1st"
+  - "make -f common.mk BASERUBY=ruby srcdir=. update-config_files"
+  - "autoconf"
+  - "mkdir config_1st config_2nd"
+  - "./configure -C --with-gcc=$CC"
+  - "cp -pr config.status .ext/include config_1st"
   - "make reconfig"
-  - "cp -pr config.cache config.status .ext/include ../config_2nd"
-  - "(cd .. && exec diff -ru config_1st config_2nd)"
-  - "make -s $JOBS"
-
+  - "cp -pr config.status .ext/include config_2nd"
+  - "diff -ru config_1st config_2nd"
+  - "make -sj encs"
+  - "make -sj exts"
 script:
-  - "make -s test TESTOPTS=--color=never"
-  - "make -s $JOBS test-all -o exts TESTOPTS='-q --color=never --job-status=normal'"
-  - "make -s $JOBS test-spec MSPECOPT=-j"
+  - "make test OPTS=-v"
+#  - "make test-all TESTS='-v'"
 
 # Branch matrix.  Not all branches are Travis-ready so we limit branches here.
 branches:
   only:
     - trunk
-    - ruby_2_2
-    - ruby_2_3
-    - ruby_2_4
-    - /^feature\//
-    - /^bug\//
+    - ruby_1_9_3
 
 # We want to be notified when something happens.
 notifications:
   irc:
     channels:
-      - "chat.freenode.net#ruby-core"
-      - "chat.freenode.net#ruby-ja"
+      - "irc.freenode.org#ruby-core"
+      - "irc.freenode.org#ruby-ja"
     on_success: change # [always|never|change] # default: always
-    on_failure: always # [always|never|change] # default: always
+    on_failure: change # [always|never|change] # default: always
     template:
       - "%{message} by @%{author}: See %{build_url}"
 
-  slack:
-    rooms:
-      - secure: i1GLETSKye85ea6dGNA3MxI/5myChmMFiZtBd5C69xK+s1sBFqEgOSbaSf9KHc0CYrHVyNhQMaZRruieV7xS+6Pfs0Zvxf1DO6QQTWC2KhkqwFDLvZncAzjoyASdR90hbr+iRPOngQ+HJuE94zemALAwEqNAinzA74PMiJXktqY= # ruby:<token>#commits
-      - secure: ah7UEHBvncXT7bM5mvYIQAO+tIyV/wl7nXLb7wQD16dO2v8Gragy0mWjB79Q09hrrMGmp6H9bCDpdGS80boIA5EHaHoG4QaP0i9bsSt8U2AMWgZtfyIgQKJ4H2kXkGlrjO+AXTgnIkP7LNjdgAVUUTGQPb26T3QmoN2Splt+fIQ= # ruby:<token>#alerts
-    on_pull_requests: false
-    on_success: change
-    on_failure: always
-
-  email:
-    - ko1c-failure@atdot.net
+  # 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
 
 # Local Variables:
 # mode: YAML
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
deleted file mode 100644
index ffdf2dd4b8..0000000000
--- a/CONTRIBUTING.md
+++ /dev/null
@@ -1,4 +0,0 @@
-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/COPYING b/COPYING
index f06056fb45..a1f19ff99d 100644
--- a/COPYING
+++ b/COPYING
@@ -11,8 +11,8 @@ You can redistribute it and/or modify it under either the terms of the
 
        a) place your modifications in the Public Domain or otherwise
           make them Freely Available, such as by posting said
-          modifications to Usenet or an equivalent medium, or by allowing
-          the author to include your modifications in the software.
+	  modifications to Usenet or an equivalent medium, or by allowing
+	  the author to include your modifications in the software.
 
        b) use the modified software only within your corporation or
           organization.
@@ -26,11 +26,11 @@ You can redistribute it and/or modify it under either the terms of the
      provided that you do at least ONE of the following:
 
        a) distribute the binaries and library files of the software,
-          together with instructions (in the manual page or equivalent)
-          on where to get the original distribution.
+	  together with instructions (in the manual page or equivalent)
+	  on where to get the original distribution.
 
        b) accompany the distribution with the machine-readable source of
-          the software.
+	  the software.
 
        c) give non-standard binaries non-standard names, with
           instructions on where to get the original software distribution.
@@ -44,9 +44,9 @@ You can redistribute it and/or modify it under either the terms of the
      For the list of those files and their copying conditions, see the
      file LEGAL.
 
-  5. The scripts and library files supplied as input to or produced as
+  5. The scripts and library files supplied as input to or produced as 
      output from the software do not automatically fall under the
-     copyright of the software, but belong to whomever generated them,
+     copyright of the software, but belong to whomever generated them, 
      and may be sold commercially, and may be aggregated with this
      software.
 
diff --git a/ChangeLog b/ChangeLog
new file mode 100644
index 0000000000..2540307c53
--- /dev/null
+++ b/ChangeLog
@@ -0,0 +1,16191 @@
+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_stask_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/KNOWNBUGS.rb b/KNOWNBUGS.rb
index 35a8e75876..b97a08d928 100644
--- a/KNOWNBUGS.rb
+++ b/KNOWNBUGS.rb
@@ -1,7 +1,5 @@
 #
-# 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.
+# This test file concludes tests which point out known bugs.
 # So all tests will cause failure.
 #
+
diff --git a/LEGAL b/LEGAL
index 0479751691..65706459cd 100644
--- a/LEGAL
+++ b/LEGAL
@@ -5,38 +5,6 @@ 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.
-
-    https://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/onigmo.h:
 include/ruby/oniguruma.h:
 regcomp.c:
 regenc.[ch]:
@@ -82,113 +50,14 @@ enc/utf_32le.c
 enc/utf_8.c
 enc/windows_1251.c
 
-Onigmo (Oniguruma-mod) LICENSE
-------------------------------
-
-/*-
- * Copyright (c) 2002-2009  K.Kosako  <sndgk393 AT ybb DOT ne DOT jp>
- * Copyright (c) 2011-2014  K.Takata  <kentkt AT csc DOT jp>
- * 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.
- */
-
-
-Oniguruma LICENSE
------------------
-
-/*-
- * Copyright (c) 2002-2009  K.Kosako  <sndgk393 AT ybb DOT ne DOT jp>
- * 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.
- */
-
-https://github.com/k-takata/Onigmo/
-https://github.com/kkos/oniguruma
-https://svnweb.freebsd.org/ports/head/devel/oniguruma/
-
-   When this software is partly used or it is distributed with Ruby,
-   this of Ruby follows the license of Ruby.
+Oniguruma  ----   (C) K.Kosako <sndgk393 AT ybb DOT ne DOT jp>
 
-enc/trans/GB/GB12345%UCS.src:
-enc/trans/GB/UCS%GB12345.src:
-enc/trans/GB/GB2312%UCS.src:
-enc/trans/GB/UCS%GB2312.src:
-
-    This mapping data was created from files provided by Unicode, Inc.
-    (The Unicode Consortium). The files were used to create a product supporting
-    Unicode, as explicitly permitted in the files' copyright notices.
-    Please note that Unicode, Inc. never made any claims as to fitness of these
-    files for any particular purpose, and has ceased to publish the files many
-    years ago.
-
-enc/trans/JIS/JISX0201-KANA%UCS.src:
-enc/trans/JIS/JISX0208@1990%UCS.src:
-enc/trans/JIS/JISX0212%UCS.src:
-enc/trans/JIS/UCS%JISX0201-KANA.src:
-enc/trans/JIS/UCS%JISX0208@1990.src:
-enc/trans/JIS/UCS%JISX0212.src:
-
-    © 2015 Unicode®, Inc.
-    For terms of use, see http://www.unicode.org/terms_of_use.html
-
-enc/trans/JIS/JISX0213-1%UCS@BMP.src:
-enc/trans/JIS/JISX0213-1%UCS@SIP.src:
-enc/trans/JIS/JISX0213-2%UCS@BMP.src:
-enc/trans/JIS/JISX0213-2%UCS@SIP.src:
-
- 	Copyright (C) 2001 earthian@tama.or.jp, All Rights Reserved.
- 	Copyright (C) 2001 I'O, All Rights Reserved.
- 	Copyright (C) 2006 Project X0213, All Rights Reserved.
- 	You can use, modify, distribute this table freely.
-
-enc/trans/JIS/UCS@BMP%JISX0213-1.src:
-enc/trans/JIS/UCS@BMP%JISX0213-2.src:
-enc/trans/JIS/UCS@SIP%JISX0213-1.src:
-enc/trans/JIS/UCS@SIP%JISX0213-2.src:
-
- 	Copyright (C) 2001 earthian@tama.or.jp, All Rights Reserved.
- 	Copyright (C) 2001 I'O, All Rights Reserved.
- 	You can use, modify, distribute this table freely.
+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, 
+   this of Ruby follows the license of Ruby.
 
 configure:
 
@@ -229,7 +98,7 @@ 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.
 
@@ -324,11 +193,11 @@ 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
@@ -341,8 +210,8 @@ 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
@@ -362,38 +231,6 @@ random.c
     http://www.math.keio.ac.jp/matumoto/emt.html
     email: matumoto@math.keio.ac.jp
 
-  The Wayback Machine url: http://web.archive.org/web/19990429082237/http://www.math.keio.ac.jp/matumoto/emt.html
-
-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
@@ -434,10 +271,7 @@ vsnprintf.c:
     From ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
     paragraph 3 above is now null and void.
 
-st.c:
-strftime.c:
-include/ruby/st.h:
-missing/acosh.c:
+st.[ch]:
 missing/alloca.c:
 missing/dup2.c:
 missing/erf.c:
@@ -449,13 +283,10 @@ missing/lgamma_r.c:
 missing/memcmp.c:
 missing/memmove.c:
 missing/strchr.c:
-missing/strerror.c:
 missing/strstr.c:
+missing/strtol.c:
 missing/tgamma.c:
-ext/date/date_strftime.c:
 ext/digest/sha1/sha1.[ch]:
-ext/sdbm/_sdbm.c:
-ext/sdbm/sdbm.h:
 
   These files are all under public domain.
 
@@ -531,21 +362,32 @@ missing/setproctitle.c
 missing/strlcat.c
 missing/strlcpy.c
 
-  These files are under an ISC-style license.
-
-    Copyright (c) 1998, 2015 Todd C. Miller <Todd.Miller@courtesan.com>
+  These files are under the new-style BSD license.
 
-    Permission to use, copy, modify, and distribute this software for any
-    purpose with or without fee is hereby granted, provided that the above
-    copyright notice and this permission notice appear in all copies.
+   Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+   All rights reserved.
 
-    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+   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
 
@@ -626,28 +468,6 @@ ext/digest/sha2/sha2.[ch]:
     OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     SUCH DAMAGE.
 
-ext/json/generator/generator.c:
-
-    Copyright 2001-2004 Unicode, Inc.
-
-    Disclaimer
-
-    This source code is provided as is by Unicode, Inc. No claims are
-    made as to fitness for any particular purpose. No warranties of any
-    kind are expressed or implied. The recipient agrees to determine
-    applicability of information provided. If this file has been
-    purchased on magnetic or optical media from Unicode, Inc., the
-    sole remedy for any claim will be exchange of defective media
-    within 90 days of receipt.
-
-    Limitations on Rights to Redistribute This Code
-
-    Unicode, Inc. hereby grants the right to freely use the information
-    supplied in this file in the creation of products supporting the
-    Unicode Standard, and to make copies of this file in any form
-    for internal or external distribution as long as this notice
-    remains attached.
-
 ext/nkf/nkf-utf8/config.h:
 ext/nkf/nkf-utf8/nkf.c:
 ext/nkf/nkf-utf8/utf8tbl.c:
@@ -656,7 +476,7 @@ 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.
@@ -664,51 +484,6 @@ ext/nkf/nkf-utf8/utf8tbl.c:
        You don't have to ask before copying, redistribution or publishing.
        THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE.
 
-ext/psych:
-test/psych:
-
-  Copyright 2009 Aaron Patterson, et al.
-
-  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.
-
-ext/psych/yaml:
-
-  Copyright (c) 2006 Kirill Simonov
-
-  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.
-
 ext/socket/addrinfo.h:
 ext/socket/getaddrinfo.c:
 ext/socket/getnameinfo.c:
@@ -752,99 +527,7 @@ 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.
-
-  The Wayback Machine url: http://web.archive.org/web/19970607104352/http://www.activeware.com:80/
-
-lib/rdoc/generator/template/darkfish/css/fonts.css:
-
-  This file is licensed under the SIL Open Font License.
-
-    http://scripts.sil.org/OFL
-
-spec/mspec:
-spec/ruby:
-
-    Copyright (c) 2008 Engine Yard, Inc. All rights reserved.
-
-    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.
-
-lib/rubygems.rb:
-lib/rubygems:
-test/rubygems:
-
-  RubyGems is copyrighted free software by Chad Fowler, Rich Kilmer, Jim
-  Weirich and others.  You can redistribute it and/or modify it under
-  either the terms of the MIT license (see the file MIT.txt), or the
-  conditions below:
-
-  1. You may make and give away verbatim copies of the source form of the
-     software without restriction, provided that you duplicate all of the
-     original copyright notices and associated disclaimers.
-
-  2. You may modify your copy of the software in any way, provided that
-     you do at least ONE of the following:
-
-     a. place your modifications in the Public Domain or otherwise
-        make them Freely Available, such as by posting said
-        modifications to Usenet or an equivalent medium, or by allowing
-        the author to include your modifications in the software.
-
-     b. use the modified software only within your corporation or
-        organization.
-
-     c. give non-standard executables non-standard names, with
-        instructions on where to get the original software distribution.
-
-     d. make other distribution arrangements with the author.
-
-  3. You may distribute the software in object code or executable
-     form, provided that you do at least ONE of the following:
-
-     a. distribute the executables and library files of the software,
-        together with instructions (in the manual page or equivalent)
-        on where to get the original distribution.
-
-     b. accompany the distribution with the machine-readable source of
-        the software.
-
-     c. give non-standard executables non-standard names, with
-        instructions on where to get the original software distribution.
-
-     d . make other distribution arrangements with the author.
-
-  4. You may modify and include the part of the software into any other
-     software (possibly commercial).
-
-  5. The scripts and library files supplied as input to or produced as
-     output from the software do not automatically fall under the
-     copyright of the software, but belong to whomever generated them,
-     and may be sold commercially, and may be aggregated with this
-     software.
-
-  6. THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-     IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-     PURPOSE.
diff --git a/Makefile.in b/Makefile.in
index 25075f5900..98749dec61 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@
@@ -22,12 +22,9 @@ LD = @LD@
 YACC = bison
 PURIFY =
 AUTOCONF = autoconf
-ACLOCAL = aclocal
-CONFIGURE = @CONFIGURE@
 @SET_MAKE@
 MKFILES = @MAKEFILES@
 BASERUBY = @BASERUBY@
-HAVE_BASERUBY = @HAVE_BASERUBY@
 TEST_RUNNABLE = @TEST_RUNNABLE@
 CROSS_COMPILING = @CROSS_COMPILING@
 DOXYGEN = @DOXYGEN@
@@ -53,20 +50,19 @@ DOCTARGETS = @RDOCTARGET@ @CAPITARGET@
 
 EXTOUT = @EXTOUT@
 arch_hdrdir = $(EXTOUT)/include/$(arch)
-VPATH = $(arch_hdrdir)/ruby:$(hdrdir)/ruby:$(srcdir):$(srcdir)/missing
+VPATH = $(arch_hdrdir)/ruby:$(hdrdir)/ruby:$(srcdir):$(srcdir)/enc:$(srcdir)/missing
 
 empty =
 CC_VERSION = @CC_VERSION@
 OUTFLAG = @OUTFLAG@$(empty)
 COUTFLAG = @COUTFLAG@$(empty)
 ARCH_FLAG = @ARCH_FLAG@
-CFLAGS_NO_ARCH = @CFLAGS@
-CFLAGS = $(CFLAGS_NO_ARCH) $(ARCH_FLAG)
+CFLAGS = @CFLAGS@ $(ARCH_FLAG)
 cflags = @cflags@
 optflags = @optflags@
 debugflags = @debugflags@
 warnflags = @warnflags@ @strict_warnflags@
-cppflags = @cppflags@
+INCFLAGS = -I. -I$(arch_hdrdir) -I$(hdrdir) -I$(srcdir)
 XCFLAGS = @XCFLAGS@
 CPPFLAGS = @CPPFLAGS@ $(INCFLAGS)
 LDFLAGS = @STATIC@ $(CFLAGS) @LDFLAGS@
@@ -75,11 +71,9 @@ XLDFLAGS = @XLDFLAGS@ $(EXTLDFLAGS)
 EXTLIBS =
 LIBS = @LIBS@ $(EXTLIBS)
 MISSING = @LIBOBJS@ @ALLOCA@
-ENABLE_SHARED = @ENABLE_SHARED@
 LDSHARED = @LIBRUBY_LDSHARED@
 DLDFLAGS = @LIBRUBY_DLDFLAGS@ $(XLDFLAGS) $(ARCH_FLAG)
 SOLIBS = @SOLIBS@
-ENABLE_DEBUG_ENV = @ENABLE_DEBUG_ENV@
 MAINLIBS = @MAINLIBS@
 ARCHMINIOBJS = @MINIOBJS@
 DLNOBJ = @DLNOBJ@
@@ -92,9 +86,9 @@ POSTLINK = @POSTLINK@
 
 RUBY_BASE_NAME=@RUBY_BASE_NAME@
 RUBY_PROGRAM_VERSION=@RUBY_PROGRAM_VERSION@
-RUBY_API_VERSION=@RUBY_API_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)
@@ -117,18 +111,17 @@ INSTALL_PROGRAM = @INSTALL_PROGRAM@
 XRUBY_LIBDIR = @XRUBY_LIBDIR@
 XRUBY_RUBYLIBDIR = @XRUBY_RUBYLIBDIR@
 XRUBY_RUBYHDRDIR = @XRUBY_RUBYHDRDIR@
-BOOTSTRAPRUBY = @BOOTSTRAPRUBY@
+
+DEFAULT_PRELUDES = $(GEM_PRELUDE)
 
 #### End of system configuration section. ####
 
 MAJOR=	@MAJOR@
 MINOR=	@MINOR@
 TEENY=	@TEENY@
-RUBY_PROGRAM_VERSION = @RUBY_PROGRAM_VERSION@
 
 LIBRUBY_A     = @LIBRUBY_A@
 LIBRUBY_SO    = @LIBRUBY_SO@
-LIBRUBY_SONAME= @LIBRUBY_SONAME@
 LIBRUBY_ALIASES= @LIBRUBY_ALIASES@
 LIBRUBY	      = @LIBRUBY@
 LIBRUBYARG    = @LIBRUBYARG@
@@ -137,26 +130,12 @@ 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@
@@ -168,7 +147,7 @@ RMDIRS        = @RMDIRS@
 RMALL         = @RMALL@
 NM            = @NM@
 AR            = @AR@
-ARFLAGS       = @ARFLAGS@$(empty)
+ARFLAGS       = rcu
 RANLIB        = @RANLIB@
 AS            = @AS@
 ASFLAGS       = @ASFLAGS@ $(INCFLAGS)
@@ -176,32 +155,27 @@ IFCHANGE      = $(srcdir)/tool/ifchange
 SET_LC_MESSAGES = env LC_MESSAGES=C
 OBJDUMP       = @OBJDUMP@
 OBJCOPY       = @OBJCOPY@
-HAVE_GIT      = @HAVE_GIT@
-GIT           = @GIT@
 VCS           = @VCS@
 VCSUP         = @VCSUP@
-DTRACE        = @DTRACE@ @DTRACE_OPT@
+DTRACE        = @DTRACE@
 DTRACE_EXT    = @DTRACE_EXT@
-DTRACE_OBJ    = @DTRACE_OBJ@
-DTRACE_REBUILD= @DTRACE_REBUILD@
-DTRACE_GLOMMED_OBJ = $(DTRACE_REBUILD:yes=ruby-glommed.$(OBJEXT))
+DTRACE_OBJ   = @DTRACE_OBJ@
+DTRACE_GLOMMED_OBJ = @DTRACE_GLOMMED_OBJ@
 
 OBJEXT        = @OBJEXT@
 ASMEXT        = S
-SOEXT         = @SOEXT@
 DLEXT         = @DLEXT@
 MANTYPE	      = @MANTYPE@
 SYMBOL_PREFIX = @SYMBOL_PREFIX@
 
 INSTALLED_LIST= .installed.list
 
-NEWLINE_C     = enc/trans/newline.c
+MKMAIN_CMD    = mkmain.sh
+
+NEWLINE_C     = newline.c
 MINIPRELUDE_C = miniprelude.c
-PRELUDE_C     = prelude.c
 RBCONFIG      = .rbconfig.time
 
-MAINSRC = $(MAINOBJ:@OBJEXT@=c)
-
 SRC_FILE      = $<
 OS_SRC_FILE   = $<
 DEST_FILE     = $@
@@ -212,8 +186,6 @@ 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
 
@@ -221,14 +193,15 @@ 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) $(MAINLIBS) $(LIBS) $(OUTFLAG)$@
-		$(Q) $(POSTLINK)
+		$(Q) $(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) $(NORMALMAINOBJ) $(MINIOBJS) $(COMMONOBJS) $(DMYEXT) $(DTRACE_OBJ) $(MAINLIBS) $(LIBS) $(OUTFLAG)$@
 
 $(PROGRAM):
 		@$(RM) $@
@@ -242,36 +215,29 @@ $(PROGRAM):
 $(LIBRUBY_A):
 		@$(RM) $@
 		$(ECHO) linking static-library $@
-		$(Q) $(AR) $(ARFLAGS) $@ $(LIBRUBY_A_OBJS) $(INITOBJS)
+		$(Q) $(AR) $(ARFLAGS) $@ $(LIBRUBY_A_OBJS) $(DMYEXT)
 		@-$(RANLIB) $@ 2> /dev/null || true
-
-verify-static-library: $(LIBRUBY_A)
 		$(ECHO) verifying static-library $@
 		@$(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) $(MAINOBJ) $(LIBRUBY_A) $(MAINLIBS) $(EXTLIBS) $(LIBS) $(OUTFLAG)conftest$(EXEEXT)
-		@$(RMALL) conftest$(EXEEXT) conftest.c conftest.dSYM
+		@$(RM) conftest$(EXEEXT) conftest.c
 
 $(LIBRUBY_SO):
 		@-$(PRE_LIBRUBY_UPDATE)
 		$(ECHO) linking shared-library $@
-		$(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_*' -L '$(SYMBOL_PREFIX)*_ec_*' $@
+		$(Q) $(LDSHARED) $(DLDFLAGS) $(OBJS) $(DLDOBJS) $(DTRACE_OBJ) $(SOLIBS) $(EXTSOLIBS) $(OUTFLAG)$@
+		-$(Q) $(OBJCOPY) -w -L '$(SYMBOL_PREFIX)Init_*' -L '$(SYMBOL_PREFIX)*_threadptr_*' $@
 		$(Q) $(POSTLINK)
 		@-$(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.h: template/ruby-runner.h.in
-		@./config.status --file=$@:$(srcdir)/template/$(@F).in
-
-$(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
@@ -291,7 +257,7 @@ install-cross: $(arch)-fake.rb $(RBCONFIG) rbconfig.rb $(arch_hdrdir)/ruby/confi
 
 Makefile:	$(srcdir)/Makefile.in $(srcdir)/enc/Makefile.in
 
-$(MKFILES): config.status $(srcdir)/version.h
+$(MKFILES): config.status
 		@[ -f $@ ] && mv $@ $@.old
 		MAKE=$(MAKE) $(SHELL) ./config.status $@
 		@cmp $@ $@.old > /dev/null 2>&1 && echo $@ unchanged && exit 0; \
@@ -307,25 +273,18 @@ 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 = 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-0 = exec 3>&1; exit `exec 4>&1; { "$$@" 3>&- 4>&-; echo $$? 1>&4; } | fgrep -v '(cached)' 1>&3`
 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.ac $(srcdir)/aclocal.m4
-	$(CHDIR) $(srcdir) && exec $(AUTOCONF) -o $(@F)
-
-$(srcdir)/aclocal.m4:
-	$(CHDIR) $(srcdir) && \
-	type $(ACLOCAL) >/dev/null 2>&1 && exec $(ACLOCAL); \
-	touch $(@F)
-
-prereq: $(srcdir)/$(CONFIGURE)
+$(srcdir)/configure: $(srcdir)/configure.in
+	$(CHDIR) $(srcdir) && exec $(AUTOCONF)
 
 incs: id.h
 all-incs: probes.h
@@ -344,26 +303,27 @@ lex.c: defs/keywords
 	  $(CP) $(srcdir)/lex.c.blt $@; \
 	else \
 	  [ $(Q) ] && echo generating $@ || set -x; \
-	  gperf -C -P -p -j1 -i 1 -g -o -t -N rb_reserved_word -k1,3,$$ $? \
-	  | sed -f $(srcdir)/tool/gperf.sed \
-	  > $@.tmp && \
+	  gperf -C -p -j1 -i 1 -g -o -t -N rb_reserved_word -k1,3,$$ $? > $@.tmp && \
 	  $(MV) $@.tmp $@ && \
 	  $(CP) $? $(srcdir)/defs/lex.c.src && \
 	  $(CP) $@ $(srcdir)/lex.c.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
+NAME2CTYPE_OPTIONS = -7 -c -j1 -i1 -t -C -P -T -H uniname2ctype_hash -Q uniname2ctype_pool -N uniname2ctype_p
 
-$(srcdir)/enc/jis/props.h: enc/jis/props.kwd
+enc/unicode/name2ctype.h: enc/unicode/name2ctype.kwd
 	$(MAKEDIRS) $(@D)
 	@set +e; \
 	if cmp -s $(?:.kwd=.src) $?; then \
 	  set -x; \
 	  $(CP) $(?:.kwd=.h.blt) $@; \
 	else \
+	  trap '$(RM) $@-1.h $@-2.h' 0 && \
 	  set -x; \
-	  gperf $(JIS_PROPS_OPTIONS) $? | \
-	  sed -f $(srcdir)/tool/gperf.sed > $@ && \
+	  sed '/^#ifdef USE_UNICODE_PROPERTIES/,/^#endif/d' $? | gperf $(NAME2CTYPE_OPTIONS) > $@-1.h && \
+	  sed '/^#ifdef USE_UNICODE_PROPERTIES/d;/^#endif/d' $? | gperf $(NAME2CTYPE_OPTIONS) > $@-2.h && \
+	  diff -DUSE_UNICODE_PROPERTIES $@-1.h $@-2.h > $@.tmp || :; \
+	  $(MV) $@.tmp $@ && \
 	  $(CP) $? $(?:.kwd=.src) && \
 	  $(CP) $@ $(?:.kwd=.h.blt); \
 	fi
@@ -387,37 +347,37 @@ $(srcdir)/enc/jis/props.h: enc/jis/props.kwd
 .d.h:
 	@$(ECHO) translating probes $<
 	$(Q) $(DTRACE) -o $@.tmp -h -C $(INCFLAGS) -s $<
-	$(Q) sed -e 's/RUBY_/RUBY_DTRACE_/g' -e 's/PROBES_H_TMP/RUBY_PROBES_H/' -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/PROBES_H/g' -e 's/(char \*/(const char */g' -e 's/, char \*/, const char */g' $@.tmp > $@
 	$(Q) $(RM) $@.tmp
 
 .dmyh.h:
-	@$(ECHO) making dummy $(DEST_FILE)
-	$(Q)echo '#include "$(*F).dmyh"' > $@
-
-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 $@
+	@$(ECHO) copying dummy $(DEST_FILE)
+	$(Q) $(CP) $(OS_SRC_FILE) $(OS_DEST_FILE)
 
-probes.@OBJEXT@: $(srcdir)/probes.d $(DTRACE_REBUILD:yes=probes.stamp)
+probes.@OBJEXT@: $(srcdir)/probes.d
 	@$(ECHO) processing probes in object files
-	$(Q) $(RM) $@
-	$(Q) $(DTRACE) -G -C $(INCFLAGS) -s $(srcdir)/probes.d -o $@ $(DTRACE_REBUILD_OBJS)
+	$(Q) stamp="$*.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)
 
 # 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)
+	$(Q) $(LD) -r -o $@ $(OBJS) $(DTRACE_OBJ)
 
 clean-local::
 	$(Q)$(RM) ext/extinit.c ext/extinit.$(OBJEXT) ext/ripper/y.output \
 		enc/encinit.c enc/encinit.$(OBJEXT)
 	-$(Q)$(RM) $(pkgconfig_DATA)
-	-$(Q)$(RMALL) exe/ ruby-runner.h *.dSYM
 
 distclean-local::
 	$(Q)$(RM) ext/config.cache $(RBCONFIG) Doxyfile
@@ -425,48 +385,45 @@ distclean-local::
 	-$(Q)$(RM) $(INSTALLED_LIST) $(arch_hdrdir)/ruby/config.h verconf.h
 	-$(Q)$(RMDIRS) $(arch_hdrdir)/ruby 2> /dev/null || true
 
-ext/clean.sub gems/clean.sub:: ext/clean.mk
-ext/distclean.sub gems/distclean.sub:: ext/distclean.mk
-ext/realclean.sub gems/realclean.sub:: ext/realclean.mk
-
-ext/clean.mk ext/distclean.mk ext/realclean.mk::
-	-$(Q) if [ -f $(EXTS_MK) ]; then exec $(MAKE) -f $(EXTS_MK) $(@F:.mk=); fi
-
-ext/clean:: ext/clean.sub
-ext/distclean:: ext/distclean.sub
-ext/realclean:: ext/realclean.sub
-gems/clean:: gems/clean.sub
-gems/distclean:: gems/distclean.sub
-gems/realclean:: gems/realclean.sub
-
-ext/clean.sub ext/distclean.sub ext/realclean.sub \
-gems/clean.sub gems/distclean.sub gems/realclean.sub::
-	$(Q) set dummy `echo "${EXTS}" | tr , ' '`; shift; \
+clean-ext distclean-ext realclean-ext::
+	@cd ext 2>/dev/null || exit 0; set dummy `echo "${EXTS}" | tr , ' '`; shift; \
 	test "$$#" = 0 && set .; \
 	set dummy `\
-	    cd $(@D) 2>/dev/null && \
-	    find "$$@" \( -name Makefile -o -name exts.mk \) -print | \
-	    sed -n 's:^\./::;s:^:$(@D)/:;s:/[^/][^/]*$$::p' | sort -u; \
+	    find "$$@" -name Makefile -print | sed 's:^\./::;s:/Makefile$$:~:' | sort | sed 's:~$$::'; \
 	`; shift; \
+	cd ..; \
 	for dir do \
-	    $(RM) "$$dir/exts.mk"; \
-	    if [ -f "$$dir/Makefile" ]; then \
-		echo $(@F:.sub=)ing "$$dir"; \
-		(cd "$$dir" && exec $(MAKE) $(mflags) $(@F:.sub=)); \
-	    fi; \
-	done || true
-
-ext/distclean ext/realclean gems/distclean gems/realclean::
-	$(Q) set dummy `echo "${EXTS}" | tr , ' '`; shift; \
-	test "$$#" = 0 && set .; \
-	cd $(@D) 2>/dev/null && \
-	find "$$@" -type d -empty -exec $(RMDIRS) {} + 2> /dev/null || true
-	$(Q) $(RMDIRS) $(@D) 2> /dev/null || true
+	    echo $(@:-ext=)ing "$$dir"; \
+	    (cd "ext/$$dir" && exec $(MAKE) $(MFLAGS) $(@:-ext=)) && \
+	    case "$@" in \
+	    *distclean-ext*|*realclean-ext*) \
+		$(RMDIRS) "ext/$$dir" 2> /dev/null || true;; \
+	    esac; \
+	done
+	-$(Q)$(RM) ext/extinit.$(OBJEXT)
+
+distclean-ext realclean-ext::
+	-$(Q)$(RM) ext/extinit.c
+	-$(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) $(MAKE_ENC) $(@:-enc=)
+	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 $@
@@ -474,41 +431,38 @@ ext/extinit.$(OBJEXT): ext/extinit.c $(SETUP)
 
 enc/encinit.$(OBJEXT): enc/encinit.c $(SETUP)
 
-test-bundled-gems-run:
-	$(Q) set -e; while read gem _; do \
-	  echo testing $$gem gem && \
-	  $(XRUBY) -C $(srcdir)/gems/src/$$gem -Ilib ../../../.bundle/bin/rake; \
-	done < $(srcdir)/gems/bundled_gems
-
-update-src::
+up::
 	@$(CHDIR) "$(srcdir)" && LC_TIME=C exec $(VCSUP)
 
-update-download:: update-config_files
-
-after-update:: prereq
+up::
+	-$(Q)$(MAKE) $(MFLAGS) after-update
 
-gcov:
-	$(Q) $(BASERUBY) $(srcdir)/tool/run-gcov.rb
+after-update:: update-config_files
 
-lcov:
-	$(Q) $(BASERUBY) $(srcdir)/tool/run-lcov.rb
-
-update-doclie:
-	$(Q) $(srcdir)/tool/git-refresh -C $(srcdir)/coverage $(Q1:0=-q) \
-		--branch $(DOCLIE_GIT_REF) \
-		$(DOCLIE_GIT_URL) doclie $(GIT_OPTS)
-
-update-simplecov-html:
-	$(Q) $(srcdir)/tool/git-refresh -C $(srcdir)/coverage $(Q1:0=-q) \
-		--branch $(SIMPLECOV_HTML_GIT_REF) \
-		$(SIMPLECOV_HTML_GIT_URL) simplecov-html $(GIT_OPTS)
+update-mspec:
+	@$(CHDIR) $(srcdir); \
+	if [ -d spec/mspec ]; then \
+	  cd spec/mspec; \
+	  echo updating mspec ...; \
+	  exec git pull; \
+	else \
+	  echo retrieving mspec ...; \
+	  exec git clone $(MSPEC_GIT_URL) spec/mspec; \
+	fi
 
-update-simplecov:
-	$(Q) $(srcdir)/tool/git-refresh -C $(srcdir)/coverage $(Q1:0=-q) \
-		--branch $(SIMPLECOV_GIT_REF)  \
-		$(SIMPLECOV_GIT_URL) simplecov $(GIT_OPTS)
+update-rubyspec: update-mspec
+	@$(CHDIR) $(srcdir); \
+	if [ -d spec/rubyspec ]; then \
+	  cd spec/rubyspec; \
+	  echo updating rubyspec ...; \
+	  exec git pull; \
+	else \
+	  echo retrieving rubyspec ...; \
+	  exec git clone $(RUBYSPEC_GIT_URL) spec/rubyspec; \
+	fi
 
-update-coverage: update-simplecov update-simplecov-html update-doclie
+test-rubyspec-precheck:
+	@if [ ! -d $(srcdir)/spec/rubyspec ]; then echo No rubyspec here.  make update-rubyspec first.; exit 1; fi
 
 INSNS	= opt_sc.inc optinsn.inc optunifs.inc insns.inc insns_info.inc \
 	  vmtc.inc vm.inc
@@ -519,13 +473,7 @@ $(INSNS): $(srcdir)/insns.def vm_opts.h \
 	$(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'
-
-un-runnable:
-	$(ECHO) cannot make runnable, configure with --enable-load-relative.
-	$(Q) exit 1
diff --git a/NEWS b/NEWS
index 1a4b1d705f..ae44d7effb 100644
--- a/NEWS
+++ b/NEWS
@@ -1,577 +1,312 @@
 # -*- rdoc -*-
 
-= NEWS for Ruby 2.5.0
+= 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 or Redmine
-(e.g. <tt>https://bugs.ruby-lang.org/issues/$FEATURE_OR_BUG_NUMBER</tt>)
+with all sufficient information, see the ChangeLog file.
 
-== Changes since the 2.4.0 release
+== Changes since the 2.0.0 release
 
 === Language changes
 
-* Top-level constant look-up is removed.  [Feature #11547]
+* Now the default values of keyword arguments can be omitted.  Those
+  "required keyword arguments" need giving explicitly at the call time.
 
-* rescue/else/ensure are allowed inside do/end blocks.  [Feature #12906]
+* 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.
 
-* refinements take place in string interpolations.  [Feature #13812]
+* 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.
 
-  * New methods:
-
-    * Array#append  [Feature #12746]
-    * Array#prepend  [Feature #12746]
-
-* Data
-
-  * Is deprecated. It was a base class for C extensions, and it's not
-    necessary to expose in Ruby level. [Feature #3072]
-
-* Exception
-
-  * New methods:
-
-    * Exception#full_message to retrieve a String expression of an exception,
-      formatted in the same way in which Ruby prints out an uncaught exception.
-      [Feature #14141] [experimental]
-
-* Dir
-
-  * Dir.glob provides new optional keyword argument, :base.
-    [Feature #13056]
-  * Dir.chdir (without block arg), Dir.open, Dir.new, Dir.mkdir, Dir.rmdir,
-    Dir.empty? releases GVL
-
-  * New methods:
-
-    * Dir.children  [Feature #11302]
-    * Dir.each_child  [Feature #11302]
+* Binding
+  * New methods
+    * Binding#local_variable_get(symbol)
+    * Binding#local_variable_set(symbol, obj)
+    * Binding#local_variable_defined?(symbol)
 
 * Enumerable
-
-  * Enumerable#{any?,all?,none?,one?} accept a pattern argument [Feature #11286]
-
-* File
-
-  * File.open accepts :newline option to imply text mode.  [Bug #13350]
-  * File#path raises an IOError for files opened with
-    File::Constants::TMPFILE option. [Feature #13568]
-  * File.stat, File.exist?, and other rb_stat()-using methods release GVL
-    [Bug #13941]
-  * File.rename releases GVL [Feature #13951]
-  * File::Stat#{atime,mtime,ctime} support fractional second timestamps on
-    Windows 8 and later  [Feature #13726]
-  * File::Stat#ino and File.indentical? support ReFS 128bit ino on Windows 8.1
-    and later  [Feature #13731]
-  * File.readable?, File.readable_real?, File.writable?, File.writable_real?,
-    File.executable?, File.executable_real?, File.mkfifo, File.readlink,
-    File.truncate, File#truncate, File.chmod, File.lchmod, File.chown,
-    File.lchown, File.unlink, File.utime, File.lstat release GVL
-
-  * New method:
-
-    * File.lutime  [Feature #4052]
+  * 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.
 
-  * Exception#full_message takes :highlight and :order options [Bug #14324]
-
-* Hash
-
-  * New methods:
-
-    * Hash#transform_keys  [Feature #13583]
-    * Hash#transform_keys!  [Feature #13583]
-    * Hash#slice  [Feature #8499]
-
-* IO
-
-  * IO#copy_stream tries copy offload with copy_file_range(2) [Feature #13867]
-
-  * New methods:
-
-    * IO#pread  [Feature #4532]
-    * IO#pwrite  [Feature #4532]
-    * IO#write accepts multiple arguments  [Feature #9323]
-
-* IOError
-
-  * IO#close might raise an error with message "stream closed",
-    but it is refined to "stream closed in another thread". The new message
-    is more clear for user.
-    [Bug #13405]
+* GC
+  * added environment variable:
+    * RUBY_HEAP_SLOTS_GROWTH_FACTOR: growth rate of the heap.
 
 * 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
 
-  * Integer#step no longer hides errors from coerce method when
-    given a step value which cannot be compared with #> to 0.
-    [Feature #7688]
-  * Integer#{round,floor,ceil,truncate} always return an Integer.
-    [Bug #13420]
-  * Integer#pow accepts modulo argument for calculating modular
-    exponentiation.  [Feature #12508] [Feature #11003]
-
-  * New methods:
-
-    * Integer#allbits?, Integer#anybits?, Integer#nobits? [Feature #12753]
-    * Integer.sqrt  [Feature #13219]
+* 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
-
-  * Kernel#yield_self   [Feature #6721]
-  * Kernel#pp  [Feature #14123]
-  * Kernel#warn(..., uplevel:n)  [Feature #12882]
-
-* Method
-
   * New methods:
-
-    * Method#=== that invokes Method#call, as same as Proc#=== [Feature #14142]
+    * Kernel#singleton_method
 
 * Module
-
-  * Module#{attr,attr_accessor,attr_reader,attr_writer} become public [Feature #14132]
-  * Module#{define_method,alias_method,undef_method,remove_method} become public [Feature #14133]
+  * 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
-
-  * Numerical comparison operators (<,<=,>=,>) no longer hide exceptions
-    from #coerce method internally. Return nil in #coerce if the coercion is
-    impossible.  [Feature #7688]
+  * 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.
 
 * 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
 
-  * Precision of Process.times is improved if getrusage(2) exists. [Feature #11952]
-
-  * New method:
-
-    * Process.last_status as an alias of $? [Feature #14043]
-
-* Range
-  * Range#initialize no longer hides exceptions when comparing begin and
-    end with #<=> and raise a "bad value for range" ArgumentError
-    but instead lets the exception from the #<=> call go through.
-    [Feature #7688]
-
-* Regexp
-
-  * Update to Onigmo 6.1.3-669ac9997619954c298da971fcfacccf36909d05.
-
-    * Support absence operator https://github.com/k-takata/Onigmo/issues/82
-
-  * Support new 5 emoji-related Unicode character properties
-
-* RubyVM::InstructionSequence
-
-  * New method:
-
-    * RubyVM::InstructionSequence#each_child
-    * RubyVM::InstructionSequence#trace_points
+* RbConfig
+  * New constants:
+    * RbConfig::SIZEOF is added to provide the size of C types.
 
 * String
-
-  * String#-@ deduplicates unfrozen strings.  Already-frozen
-    strings remain unchanged for compatibility.  [Feature #13077]
-  * -"literal" (String#-@) optimized to return the same object
-    (same as "literal".freeze in Ruby 2.1+) [Feature #13295]
-  * String#{casecmp,casecmp?} return nil for non-string arguments
-    instead of raising a TypeError. [Bug #13312]
-  * String#start_with? accepts a regexp [Feature #13712]
-
   * New methods:
+    * String#scrub and String#scrub! verify and fix invalid byte sequence.
+  * extended methods:
+    * If invalid: :replace is specified for String#encode, replace
+      invalid byte sequence even if the destination encoding equals to
+      the source encoding.
 
-    * String#delete_prefix, String#delete_prefix! [Feature #12694]
-    * String#delete_suffix, String#delete_suffix! [Feature #13665]
-    * String#each_grapheme_cluster and String#grapheme_clusters to
-      enumerate grapheme clusters [Feature #13780]
-    * String#undump to unescape String#dump'ed string [Feature #12275]
-
-* Struct
+* Symbol
+  * All symbols are now frozen.
 
-  * Struct.new takes `keyword_init: true` option to initialize members
-    with keyword arguments. [Feature #11925]
+* pack/unpack (Array/String)
+  * Q! and q! directives for long long type if platform has the type.
 
-* Regexp/String: Update Unicode version from 9.0.0 to 10.0.0 [Feature #13685]
+* 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.
 
-* Thread
+=== Core classes compatibility issues (excluding feature bug fixes)
 
-  * Description set by Thread#name= is now visible on Windows 10.
-
-  * New method:
-    * Thread#fetch  [Feature #13009]
-
-  * The default of Thread.report_on_exception is now true,
-    showing unhandled exceptions terminating threads on $stderr.
-    [Feature #14143]
-
-* Time
+* IO
+  * incompatible changes:
+    * open ignore internal encoding if external encoding is ASCII-8BIT.
 
-  * Time#at receives 3rd argument which specifies the unit of 2nd argument.
-    [Feature #13919]
+* 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.
 
-* KeyError
+* 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.
 
-  * New methods:
+* Module#ancestors
+  * The ancestors of a singleton class now include singleton classes,
+    in particular itself.
 
-    * KeyError#receiver [Feature #12063]
-    * KeyError#key      [Feature #12063]
+* Module#define_method and Object#define_singleton_method
+  * Now they return the symbols of the defined methods, not the methods/procs
+    themselves.
 
-* FrozenError
+* Numeric#quo
+  * Raises TypeError instead of ArgumentError if the receiver doesn't have
+    to_r method.
 
-  * New exception class. [Feature #13224]
+* 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.
 
 === Stdlib updates (outstanding ones only)
 
-* BigDecimal
-
-  * Update to BigDecimal 1.3.4
-
-  * The following features are added:
-
-    * BigDecimal::VERSION
-
-  * The following features have been deprecated,
-    and are planned to be removed in the version 1.4.0:
-
-    * BigDecimal.new
-
-    * BigDecimal.ver
-
-  * BigDecimal#clone and #dup now do not make a new instance,
-    but returns the receiver itself.
-
-* Coverage
-
-  * Support branch coverage and method coverage measurement. [Feature #13901]
-    Branch coverage tells you which branches are executed, and which not.
-    Method coverage tells you which methods are invoked, and which not.
-    By running a test suite with this new feature, you can know which branches
-    and methods are executed by a test, and evaluate total coverage of a test
-    suite more strictly.
-
-    You can specify the measuring target by an option to `Coverage.start`:
-
-        Coverage.start(lines: true, branches: true, methods: true)
-
-    After some Ruby files are loaded, you can use `Coverage.result` to get
-    the coverage result:
-
-        Coverage.result
-        #=> { "/path/to/file.rb"=>
-        #     { :lines => [1, 2, 0, nil, ...],
-        #       :branches =>
-        #         { [:if, 0, 2, 1, 6, 4] =>
-        #             { [:then, 1, 3, 2, 3, 8] => 0,
-        #               [:else, 2, 5, 2, 5, 8] => 2
-        #             }
-        #         },
-        #       :methods => {
-        #          [Object, :foo, 1, 0, 7, 3] => 2
-        #       }
-        #     }
-        #   }
-
-    The result type of line coverage is not changed; it is just an array that
-    contains numbers, which means the count that each line was executed,
-    or `nil`s, which means that the line is not relevant.
-
-    The result type of branch coverage is:
-
-        { (jump base) => { (jump target) => (counter) } }
-
-    where jump base and targets have the format
-
-        [type, unique-id, start lineno, start column, end lineno, end column]
-
-    For example, `[:if, 0, 2, 1, 6, 4]` reads an `if` statement that ranges from
-    line 2 and column 1, to line 6 and column 4.  `[:then, 1, 3, 2, 3, 8]` reads
-    a `then` clause that ranges from line 3 and column 2, to line 3 and column 8.
-    Note that lineno starts from 1, and that columnno starts from 0.  So, the
-    above example shows a branch from the `if` to the `then` was never executed,
-    and a branch from the `if` to the `else` was executed twice.
-
-    The result type of method coverage is:
+* CGI::Util
+  * All class methods modulized.
 
-        { (method key) => (counter) }
-
-    where method key has the format
-
-        [class, method-name, start lineno, start column, end lineno, end column]
-
-    For example, `[Object, :foo, 1, 0, 7, 3]` reads `Object#foo` that ranges from
-    line 1 and column 0, to line 7 and column 3.  The above example shows this
-    `Object#foo` was invoked twice.
-
-    Note: To keep compatibility, passing no option to `Coverage.start` will measure
-    only line coverage, and `Coverage.result` will return the old format:
-
-        Coverage.result
-        #=> { "/path/to/file.rb"=> [1, 2, 0, nil, ...] }
-
-* DRb
-
-  * ACL::ACLEntry.new no longer suppresses IPAddr::InvalidPrefixError.
-
-* ERB
-
-  * Add ERB#result_with_hash to render a template with local variables passed
-    with a Hash object. [Feature #8631]
-
-  * Default template file encoding is changed from ASCII-8BIT to UTF-8 in erb
-    command. [Bug #14095]
-
-  * Carriage returns are changed to be trimmed properly if trim_mode is specified
-    and used. Duplicated newlines will be removed on Windows. [Bug #5339] [Bug #11464]
-
-* IPAddr
-
-  * IPAddr no longer accepts invalid address mask. [Bug #13399]
-  * IPAddr#{ipv4_compat,ipv4_compat?} are marked for deprecation. [Bug #13769]
-
-  * New methods:
-
-    * IPAddr#prefix
-    * IPAddr#loopback?
-    * IPAddr#private? [Feature #11666]
-    * IPAddr#link_local? [Feature #10912]
-
-
-* IRB
-
-  * Print backtrace and error message in reverse order [Feature #8661] [experimental]
-  * `binding.irb` automatically requires irb and runs [Bug #13099] [experimental]
-  * `binding.irb` on its start shows source around the line where it was called
-    [Feature #14124]
+* Digest
+  * extended methods:
+    * Digest::Class.file takes optional arguments for its constructor
 
 * Matrix
-
-  * New methods:
-
-    * Matrix.combine and Matrix#combine [Feature #10903]
-    * Matrix#{hadamard_product,entrywise_product}
-
-* Net::HTTP
-
-  * Net::HTTP.new supports no_proxy parameter [Feature #11195]
-  * Net::HTTP#{min_version,max_version}, [Feature #9450]
-  * Add more HTTP status classes
-  * Net::HTTP::STATUS_CODES is added as HTTP Status Code Repository [Misc #12935]
-  * Net::HTTP#{proxy_user,proxy_pass} reflect http_proxy environment variable
-    if the system's environment variable is multiuser safe. [Bug #12921]
+  * 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
+
+* OpenSSL::BN
+  * extended methods:
+    * OpenSSL::BN.new allows Fixnum/Bignum argument.
 
 * open-uri
-  * URI.open method defined as an alias to open-uri's Kernel.open.
-    open-uri's Kernel.open will be deprecated in future.
-
-* OpenSSL
-
-  * Updated Ruby/OpenSSL from version 2.0 to 2.1. Changes are noted in
-    "Version 2.1.0" section in ext/openssl/History.md.
+  * Support multiple fields with same field name (like Set-Cookie).
 
 * Pathname
+  * New methods:
+    * Pathname#write
+    * Pathname#binwrite
 
-  * New method:
-
-    * Pathname#glob [Feature #7360]
-
-* Psych
-
-  * Update to Psych 3.0.2.
-
-    * Convert fallback option to a keyword argument
-      https://github.com/ruby/psych/pull/342
-    * Add :symbolize_names option to Psych.load, Psych.safe_load like JSON.parse
-      https://github.com/ruby/psych/pull/333, https://github.com/ruby/psych/pull/337
-    * Add Psych::Handler#event_location
-      https://github.com/ruby/psych/pull/326
-    * Make frozen string literal = true
-      https://github.com/ruby/psych/pull/320
-    * Preserve time zone offset when deserializing times
-      https://github.com/ruby/psych/pull/316
-    * Remove deprecated method aliases for syck gem
-      https://github.com/ruby/psych/pull/312
-
-* RbConfig
-
-  * RbConfig::LIMITS is added to provide the limits of C types.
-    This is available when rbconfig/sizeof is loaded.
-
-* Ripper
+* 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.
 
-  * Ripper::EXPR_BEG and so on for Ripper#state.
+    For a complete list of changes since rake 0.9.6 see:
 
-  * New method:
+    http://rake.rubyforge.org/doc/release_notes/rake-10_1_0_rdoc.html
 
-    * Ripper#state to tell the state of scanner. [Feature #13686]
+    http://rake.rubyforge.org/doc/release_notes/rake-10_0_3_rdoc.html
 
 * RDoc
+  * Updated to 4.1.0.preview.2.  Major enhancements include a modified default
+    template and accessibility enhancements.
 
-  * Update to RDoc 6.0.1.
+    For a list of minor enhancements and bug fixes see:
+    https://github.com/rdoc/rdoc/blob/v4.1.0.preview.1/History.rdoc
 
-    * Replace IRB based lexer with Ripper.
-      * https://github.com/ruby/rdoc/pull/512
-      * This much improves the speed of generating documents.
-      * It also facilitates supporting new syntax in the future.
-    * Support many new syntaxes of Ruby from the past few years.
-    * Use "frozen_string_literal: true".
-      This reduces document generation time by 5%.
-    * Support did_you_mean.
+* Resolv
+  * New methods:
+    * Resolv::DNS.fetch_resource
+  * One-shot multicast DNS support
+  * Support LOC resources
 
-* Rubygems
+* 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 backword
+    compatibility.
 
-  * Update to Rubygems 2.7.3.
-    * http://blog.rubygems.org/2017/11/28/2.7.3-released.html
-    * http://blog.rubygems.org/2017/11/08/2.7.2-released.html
-    * http://blog.rubygems.org/2017/11/03/2.7.1-released.html
-    * http://blog.rubygems.org/2017/11/01/2.7.0-released.html
-    * http://blog.rubygems.org/2017/10/09/2.6.14-released.html
-    * http://blog.rubygems.org/2017/08/27/2.6.13-released.html
+* REXML::Parsers::StreamParser
+  * Supports "entity" event.
 
-* SecureRandom
+* REXML::Text
+  * REXML::Text#<< supports method chain like 'text << "XXX" << "YYY"'.
+  * REXML::Text#<< supports not "raw" mode.
 
-  * New method:
+* Rinda::RingServer, Rinda::RingFinger
+  * Rinda now supports multicast sockets.  See Rinda::RingServer and
+    Rinda::RingFinger for details.
 
-    * SecureRandom.alphanumeric
+* RubyGems
+  * Updated to 2.2.0.preview.2  For a list of enhancements and bug fixes see:
+    https://github.com/rubygems/rubygems/blob/v2.2.0.preview.1/History.txt
 
 * Set
-
   * New methods:
+    * Set#intersect?
+    * Set#disjoint?
 
-    * Set#to_s as alias to #inspect [Feature #13676]
-    * Set#=== as alias to #include? [Feature #13801]
-    * Set#reset [Feature #6589]
-
-* StringIO
-
-  * StringIO#write accepts multiple arguments
+* Socket
+  * New methods:
+    * Socket.getifaddrs
 
 * StringScanner
+  * extended methods:
+    * StringScanner#[] supports named captures.
 
-  * New methods:
+* Syslog::Logger
+  * Added facility.
 
-    * StringScanner#size, StringScanner#captures, StringScanner#values_at  [Feature #836]
+* Tempfile
+  * New methods:
+    * Tempfile.create
 
-* URI
+* 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.
 
-  * Relative path operations no longer collapse consecutive slashes to a single slash. [Bug #8352]
+* 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.
 
-  * Add Server Name Indication (SNI) support [Feature #13729]
-  * support Proc objects as body responses [Feature #855]
-  * released as a RubyGem [Feature #13173]
-  * avoid unintended behavior from Kernel#open [Misc #14216]
-
-* Zlib
-
-  * Zlib::GzipWriter#write accepts multiple arguments
-
-=== Compatibility issues (excluding feature bug fixes)
-
-* Socket
-
-  * BasicSocket#read_nonblock and BasicSocket#write_nonblock no
-    longer set the O_NONBLOCK file description flag as side effect
-    (on Linux only) [Feature #13362]
-
-* Random
-
-  * Random.raw_seed renamed to become Random.urandom.  It is now
-    applicable to non-seeding purposes due to [Bug #9569].
-
-* Socket
-
-  * Socket::Ifaddr#vhid is added [Feature #13803]
-
-* ConditionVariable, Queue and SizedQueue reimplemented for speed.
-  They no longer subclass Struct. [Feature #13552]
+* 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)
 
-* Gemification
-
-  * Promote following standard libraries to default gems.
-    * cmath
-    * csv
-    * date
-    * dbm
-    * etc
-    * fcntl
-    * fiddle
-    * fileutils
-    * gdbm
-    * ipaddr
-    * scanf
-    * sdbm
-    * stringio
-    * strscan
-    * webrick
-    * zlib
-
-* Logger
-
-  * Logger.new("| command") had been working to open a command
-    unintentionally. It was prohibited, and now Logger#initialize
-    treats a String argument only as a filename, as its specification.
-    [Bug #14212]
-
-* Net::HTTP
-
-  * Net::HTTP#start now passes :ENV to p_addr by default. [Bug #13351]
-    To avoid this, pass nil explicitly.
-
-* mathn.rb
+* Set
+  * incompatible changes:
+    * Set#to_set now returns self instead of generating a copy.
 
-  * Removed from stdlib. [Feature #10169]
+* 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.
 
-* Rubygems
+=== Built-in global variables compatibility issues
 
-  * Removed "ubygems.rb" file from stdlib. It's needless since Ruby 1.9.
+* $SAFE
+  * $SAFE=4 is obsolete.  If $SAFE is set to 4 or larger, an ArgumentError
+    is raised.
 
 === C API updates
-
-=== Supported platform changes
-
-* Drop support of NaCl platform
-
-  * https://bugs.chromium.org/p/chromium/issues/detail?id=239656#c160
-
-=== Implementation improvements
-
-* (This might not be a "user visible feature change" but) Hash class's
-  hash function is now SipHash13. [Feature #13017]
-
-* SecureRandom now prefers OS-provided sources than OpenSSL. [Bug #9569]
-
-* Mutex rewritten to be smaller and faster [Feature #13517]
-
-* Performance of block passing using block parameters is improved by
-  lazy Proc allocation [Feature #14045]
-
-* Dynamic instrumentation for TracePoint hooks instead of using "trace"
-  instruction to avoid overhead [Feature #14104]
-
-* ERB now generates code from a template which runs 2 times faster than Ruby 2.4
-
-=== Miscellaneous changes
-
-* Print backtrace and error message in reverse order if STDERR is unchanged and a tty.
-  [Feature #8661] [experimental]
-
-* Print error message in bold/underlined text if STDERR is unchanged and a tty.
-  [Feature #14140] [experimental]
-
-* configure option --with-ext now mandates its arguments.  So for
-  instance if you run ./configure --with-ext=openssl,+ then the
-  openssl library is guaranteed compiled, otherwise the build fails
-  abnormally.
-
-  Note however to always add the ",+" at the end of the argument.
-  Otherwise nothing but openssl are built.  [Feature #13302]
diff --git a/README b/README
new file mode 100644
index 0000000000..3ffe3553a8
--- /dev/null
+++ b/README
@@ -0,0 +1,166 @@
+= 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 the 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 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 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 48b8d964c4..b7a1728110 100644
--- a/README.EXT
+++ b/README.EXT
@@ -1 +1,1499 @@
-Moved to doc/extension.rdoc
+# 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".  However, we do not recommend
+to access RXXXX data directly because these data structure is complex.
+Use corresponding rb_xxx() functions to access internal struct.
+For example, to access an entry of array, use rb_ary_entry(ary, offset)
+and rb_ary_store(ary, offset, obj).
+
+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)'.
+
+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) ::
+rb_enc_str_new_cstr(const char *ptr, 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) ::
+rb_ary_new_capa(long len) ::
+
+  Creates an array with no elements, allocating internal buffer
+  for len elements.
+
+rb_ary_new3(long n, ...) ::
+rb_ary_new_from_args(long n, ...) ::
+
+  Creates an n-element array from the arguments.
+
+rb_ary_new4(long n, VALUE *elts) ::
+rb_ary_new_from_values(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) ::
+
+  Equivalent to Array#[].
+
+rb_ary_entry(VALUE ary, long offset) ::
+
+  ary[offset]
+
+rb_ary_store(VALUE ary, long offset, VALUE obj) ::
+
+  ary[offset] = obj
+
+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 executable 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 switching
+  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 debugger
+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
+
+rb_integer_pack(value, words, numwords, wordsize, nails, flags), rb_integer_unpack(words, numwords, wordsize, nails, flags) ::
+
+  Numeric <-> Arbitrary size integer buffer
+
+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().
+  Able to call even private/protected methods.
+
+VALUE rb_funcall2(VALUE recv, ID mid, int argc, VALUE *argv) ::
+VALUE rb_funcallv(VALUE recv, ID mid, int argc, VALUE *argv) ::
+
+  Invokes a method, passing arguments as an array of values.
+  Able to call even private/protected methods.
+
+VALUE rb_funcallv_public(VALUE recv, ID mid, int argc, VALUE *argv) ::
+
+  Invokes a method, passing arguments as an array of values.
+  Able to call only public methods.
+
+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 occurred.
+
+VALUE rb_protect(VALUE (*func) (VALUE), VALUE arg, int *state) ::
+
+  Calls the function func with arg as the argument.  If no exception
+  occurred 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.
+
+= Appendix C. Functions available for use in extconf.rb
+
+See documentation for {mkmf}[rdoc-ref:MakeMakefile].
+
+/*
+ * Local variables:
+ * fill-column: 70
+ * end:
+ */
diff --git a/README.EXT.ja b/README.EXT.ja
index f884ecbb0e..9bba51a0d0 100644
--- a/README.EXT.ja
+++ b/README.EXT.ja
@@ -1 +1,1634 @@
-doc/extension.ja.rdocに移動しました
+# 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())．た
+だし、構造体への直接のアクセスはできるだけ避け，対応する
+rb_xxxx() といった関数を使うようにして下さい．例えば，配列の
+要素へアクセスする場合は，rb_ary_entry(ary, offset)，
+rb_ary_store(ary, offset, obj) を利用するようにして下さい．
+
+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．
+
+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
+う関数をあげます(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)
+rb_enc_str_new_cstr(const char *ptr, 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)
+rb_ary_new_capa(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, ...)
+rb_ary_new_from_args(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)
+rb_ary_new_from_values(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_store(VALUE ary, long offset, VALUE obj) ::
+
+  ary[offset] = obj
+
+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_funcallv(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)
+  rb_integer_pack(value, words, numwords, wordsize, nails, flags), rb_integer_unpack(words, numwords, wordsize, nails, flags)
+  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．
+  private/protectedなメソッドでも呼び出せる．
+
+VALUE rb_funcall2(VALUE recv, ID mid, int argc, VALUE *argv) ::
+VALUE rb_funcallv(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．
+  private/protectedなメソッドでも呼び出せる．
+
+VALUE rb_funcallv_public(VALUE recv, ID mid, int argc, VALUE *argv) ::
+
+  メソッド呼び出し．
+  publicなメソッドしか呼べない．
+
+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($0)を設定する．
+
+== インタプリタのイベントのフック
+
+  void rb_add_event_hook(rb_event_hook_func_t func, rb_event_flag_t events,
+                         VALUE data)
+
+指定されたインタプリタのイベントに対するフック関数を追加します．
+eventsは以下の値のorでなければなりません:
+
+  RUBY_EVENT_LINE
+  RUBY_EVENT_CLASS
+  RUBY_EVENT_END
+  RUBY_EVENT_CALL
+  RUBY_EVENT_RETURN
+  RUBY_EVENT_C_CALL
+  RUBY_EVENT_C_RETURN
+  RUBY_EVENT_RAISE
+  RUBY_EVENT_ALL
+
+rb_event_hook_func_tの定義は以下の通りです:
+
+  typedef void (*rb_event_hook_func_t)(rb_event_t event, VALUE data,
+                                       VALUE self, ID id, VALUE klass)
+
+rb_add_event_hook() の第3引数 data は，フック関数の第2引数と
+して渡されます．これは1.8では現在のNODEへのポインタでした．以
+下の RB_EVENT_HOOKS_HAVE_CALLBACK_DATA も参照してください．
+
+  int rb_remove_event_hook(rb_event_hook_func_t func)
+
+指定されたフック関数を削除します．
+
+== 互換性のためのマクロ
+
+APIの互換性をチェックするために以下のマクロがデフォルトで定義されています．
+
+NORETURN_STYLE_NEW ::
+
+  NORETURN マクロが関数型マクロとして定義されていることを意味する．
+
+HAVE_RB_DEFINE_ALLOC_FUNC ::
+
+  rb_define_alloc_func() 関数が提供されていること，つまり
+  allocation framework が使われることを意味する．
+  have_func("rb_define_alloc_func", "ruby.h")
+  の結果と同じ．
+
+HAVE_RB_REG_NEW_STR ::
+
+  StringオブジェクトからRegexpオブジェクトを作る
+  rb_reg_new_str() 関数が提供されていることを意味する．
+  have_func("rb_reg_new_str", "ruby.h").
+  の結果と同じ．
+
+HAVE_RB_IO_T ::
+
+  rb_io_t 型が提供されていることを意味する．
+
+USE_SYMBOL_AS_METHOD_NAME ::
+
+  メソッド名を返すメソッド，Module#methods, #singleton_methods
+  などがSymbolを返すことを意味する．
+
+HAVE_RUBY_*_H ::
+
+  ruby.h で定義されている．対応するヘッダが提供されていること
+  を意味する．たとえば，HAVE_RUBY_ST_H が定義されている場合は
+  単なる st.h ではなく ruby/st.h を使用する．
+
+RB_EVENT_HOOKS_HAVE_CALLBACK_DATA ::
+
+  rb_add_event_hook() がフック関数に渡す data を第3引数として
+  受け取ることを意味する．
+
+= Appendix C. extconf.rbで使える関数たち
+
+extconf.rbの中では利用可能なコンパイル条件チェックの関数は以
+下の通りである．
+
+have_macro(macro, headers) ::
+
+  ヘッダファイルheaderをインクルードしてマクロmacroが定義さ
+  れているかどうかチェックする．マクロが定義されている時true
+  を返す．
+
+have_library(lib, func) ::
+
+  関数funcを定義しているライブラリlibの存在をチェックする．
+  チェックに成功すると，-llibを$libsに追加し，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．チェックに成功すると，-llibを$libsに
+  追加し，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．チェックに成功すると，プリプロセッサマクロ
+  `HAVE_{FUNC}` を定義し，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．チェックに成功すると，プリプロセッサマクロ
+  `HAVE_{VAR}` を定義し，trueを返す．
+
+have_header(header) ::
+
+  ヘッダファイルの存在をチェックする．チェックに成功すると，
+  プリプロセッサマクロ `HAVE_{HEADER_H}` を定義し，trueを返す．
+  (スラッシュやドットはアンダースコアに置換される)
+
+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．チェックに成功すると，プリプロセッサマクロ
+  `HAVE_{HEADER_H}` を定義し，trueを返す．
+  (スラッシュやドットはアンダースコアに置換される)
+
+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が定義され，
+  なおかつメンバmemberが存在するかをチェックする．チェックに
+  成功すると，プリプロセッサマクロ `HAVE_{TYPE}_{MEMBER}` を
+  定義し，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．チェックに成功すると，プリプロセッサマクロ
+  `HAVE_TYPE_{TYPE}` を定義し，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．チェックに成功すると，プリプロセッサマクロ
+  `SIZEOF_{TYPE}` を定義し，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 $LDFLAGS に追加する．--with-<target>-dir=/pathは
+  --with-<target>-include=/path/include --with-<target>-lib=/path/lib
+  と等価である．追加された include ディレクトリと lib ディレ
+  クトリの配列を返す． ([include_dir, lib_dir])
+
+pkg_config(pkg, option=nil) ::
+
+  pkg-configコマンドからパッケージpkgの情報を [cflags, ldflags, libs]
+  の配列として得る．$CFLAGS, $LDFLAGS, $libs にはそれぞれの値が
+  追加される．
+
+  pkg-configの実際のコマンドは，以下の順で試される．
+
+  1. コマンドラインで--with-{pkg}-config={command}オプションが
+     指定された場合: {command} {option}
+  2. {pkg}-config {option}
+  3. pkg-config {option} {pkg}
+
+  optionが指定された場合は、上記の配列の代わりにそのオプションを
+  指定して得られた出力をstripしたものを返す．
+
+/*
+ * Local variables:
+ * fill-column: 60
+ * end:
+ */
diff --git a/README.ja b/README.ja
new file mode 100644
index 0000000000..9ab2f3ca0e
--- /dev/null
+++ b/README.ja
@@ -0,0 +1,192 @@
+= 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.org 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
deleted file mode 100644
index 2902216f99..0000000000
--- a/README.ja.md
+++ /dev/null
@@ -1,171 +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，Haikuなどの上でも動く cf.
-    https://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 https://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 https://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
-
-https://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.ac` 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](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 (https://ja.stackoverflow.com/) などのWebサイトに投稿してください．
-
-バグ報告は https://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
deleted file mode 100644
index 7a24329fe8..0000000000
--- a/README.md
+++ /dev/null
@@ -1,175 +0,0 @@
-[![Build Status](https://travis-ci.org/ruby/ruby.svg)](https://travis-ci.org/ruby/ruby)
-[![Build status](https://ci.appveyor.com/api/projects/status/0sy8rrxut4o0k960/branch/trunk?svg=true)](https://ci.appveyor.com/project/ruby/ruby/branch/trunk)
-
-# 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, macOS, Haiku, etc.) cf.
-    https://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:
-
-https://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 https://svn.ruby-lang.org/repos/ruby/trunk/ ruby
-
-Or if you are using git then use the following command:
-
-    $ git clone https://github.com/ruby/ruby.git
-
-There are some other branches under development. Try the following command
-to see the list of branches:
-
-    $ svn ls https://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:
-
-https://www.ruby-lang.org/
-
-## Mailing list
-
-There is a mailing list to talk about Ruby. To subscribe to 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](win32/README.win32) instead of this document.
-
-2.  If `./configure` does not exist or is older than `configure.ac`, 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`.
-
-    * On Mac, set RUBY\_CODESIGN environment variable with a signing identity.
-      It uses the identity to sign `ruby` binary. See also codesign(1).
-
-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.  Optionally, run `make update-gems` and `make extract-gems`.
-
-    If you want to install bundled gems, run `make update-gems` and
-    `make extract-gems` before running `make install`.
-
-9.  Run '`make install`'.
-
-    This command will create the following directories and install files into
-    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 `${TEENY}` is '*z*'.
-
-    **NOTE**: teeny of the API version may be different from one of Ruby's
-    program version
-
-    You may have to be a super user to install Ruby.
-
-
-If you fail to compile Ruby, please send the detailed error report with the
-error log and machine/OS type, to help others.
-
-Some extension libraries may not get compiled because of lack of necessary
-external libraries and/or headers, then you will need to run '`make distclean-ext`'
-to remove old configuration after installing them in such case.
-
-## Copying
-
-See the file [COPYING](COPYING).
-
-## Feedback
-
-Questions about the Ruby language can be asked on the Ruby-Talk mailing list
-(https://www.ruby-lang.org/en/community/mailing-lists) or on websites like
-(https://stackoverflow.com).
-
-Bug reports should be filed at https://bugs.ruby-lang.org. Read [HowToReport] for more information.
-
-[HowToReport]: https://bugs.ruby-lang.org/projects/ruby/wiki/HowToReport
-
-## Contributing
-
-See the file [CONTRIBUTING.md](CONTRIBUTING.md)
-
-
-## The Author
-
-Ruby was originally designed and developed by Yukihiro Matsumoto (Matz) in
-1995.
-
-<mailto:matz@ruby-lang.org>
diff --git a/acinclude.m4 b/acinclude.m4
deleted file mode 100644
index 99b24e6d93..0000000000
--- a/acinclude.m4
+++ /dev/null
@@ -1,46 +0,0 @@
-# -*- autoconf -*-
-
-AC_DEFUN([_COLORIZE_RESULT_PREPARE], [
-    msg_checking= msg_result_yes= msg_result_no= msg_result_other= msg_reset=
-    AS_IF([test "x${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([$1]); dnl
-}])
diff --git a/aclocal.m4 b/aclocal.m4
deleted file mode 100644
index 18ba297b05..0000000000
--- a/aclocal.m4
+++ /dev/null
@@ -1,15 +0,0 @@
-# generated automatically by aclocal 1.15.1 -*- Autoconf -*-
-
-# Copyright (C) 1996-2017 Free Software Foundation, Inc.
-
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-# PARTICULAR PURPOSE.
-
-m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
-m4_include([acinclude.m4])
diff --git a/addr2line.c b/addr2line.c
index 09fcc3c225..f936694724 100644
--- a/addr2line.c
+++ b/addr2line.c
@@ -15,12 +15,6 @@
 #include <stdio.h>
 #include <errno.h>
 
-#ifdef HAVE_STDBOOL_H
-#include <stdbool.h>
-#else
-#include "missing/stdbool.h"
-#endif
-
 #ifdef USE_ELF
 
 #include <fcntl.h>
@@ -42,9 +36,11 @@
 
 /* Make alloca work the best possible way.  */
 #ifdef __GNUC__
-# ifndef alloca
-#  define alloca __builtin_alloca
-# endif
+# ifndef atarist
+#  ifndef alloca
+#   define alloca __builtin_alloca
+#  endif
+# endif	/* atarist */
 #else
 # ifdef HAVE_ALLOCA_H
 #  include <alloca.h>
@@ -59,8 +55,11 @@ void *alloca();
 # endif	/* HAVE_ALLOCA_H */
 #endif /* __GNUC__ */
 
-#ifdef HAVE_DLADDR
-# include <dlfcn.h>
+#ifdef HAVE_DL_ITERATE_PHDR
+# ifndef _GNU_SOURCE
+#  define _GNU_SOURCE
+# endif
+# include <link.h>
 #endif
 
 #define DW_LNS_copy                     0x01
@@ -89,42 +88,22 @@ 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
 
-#ifndef SHF_COMPRESSED /* compatibility with glibc < 2.22 */
-#define SHF_COMPRESSED 0
-#endif
-
 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;
-    uintptr_t base_addr;
-    obj_info_t *next;
-};
+    unsigned long base_addr;
+} line_info_t;
 
 /* Avoid consuming stack as this module may be used from signal handler */
 static char binary_filename[PATH_MAX];
@@ -217,15 +196,34 @@ 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, uintptr_t addr, int file, int line,
-	  char *include_directories, char *filenames,
-	  obj_info_t *obj, line_info_t *lines, int offset)
+fill_line(int num_traces, void **traces,
+	  unsigned long addr, int file, int line,
+	  char *include_directories, char *filenames, line_info_t *lines)
 {
     int i;
-    addr += obj->base_addr;
-    for (i = offset; i < num_traces; i++) {
-	uintptr_t a = (uintptr_t)traces[i];
+    for (i = 0; i < num_traces; i++) {
+	unsigned long a = (unsigned long)traces[i] - lines[i].base_addr;
 	/* 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) {
@@ -235,9 +233,9 @@ fill_line(int num_traces, void **traces, uintptr_t addr, int file, int line,
     }
 }
 
-static int
-parse_debug_line_cu(int num_traces, void **traces, char **debug_line,
-		obj_info_t *obj, line_info_t *lines, int offset)
+static void
+parse_debug_line_cu(int num_traces, void **traces,
+		    char **debug_line, line_info_t *lines)
 {
     char *p, *cu_end, *cu_start, *include_directories, *filenames;
     unsigned long unit_length;
@@ -283,7 +281,7 @@ parse_debug_line_cu(int num_traces, void **traces, char **debug_line,
     is_stmt = default_is_stmt = *(unsigned char *)p;
     p++;
 
-    line_base = *(signed char *)p;
+    line_base = *(char *)p;
     p++;
 
     line_range = *(unsigned char *)p;
@@ -297,13 +295,9 @@ parse_debug_line_cu(int num_traces, void **traces, char **debug_line,
 
     include_directories = p;
 
-    /* temporary measure for compress-debug-sections */
-    if (p >= cu_end) return -1;
-
     /* skip include directories */
     while (*p) {
-	p = memchr(p, '\0', cu_end - p);
-	if (!p) return -1;
+	while (*p) p++;
 	p++;
     }
     p++;
@@ -315,8 +309,7 @@ parse_debug_line_cu(int num_traces, void **traces, char **debug_line,
 #define FILL_LINE()						    \
     do {							    \
 	fill_line(num_traces, traces, addr, file, line,		    \
-		  include_directories, filenames,		    \
-		  obj, lines, offset);				    \
+		  include_directories, filenames, lines);	    \
 	/*basic_block = prologue_end = epilogue_begin = 0;*/	    \
     } while (0)
 
@@ -411,51 +404,36 @@ parse_debug_line_cu(int num_traces, void **traces, char **debug_line,
 	}
     }
     *debug_line = p;
-    return 0;
 }
 
-static int
+static void
 parse_debug_line(int num_traces, void **traces,
-		 char *debug_line, unsigned long size,
-		 obj_info_t *obj, line_info_t *lines, int offset)
+		 char *debug_line, unsigned long size, line_info_t *lines)
 {
     char *debug_line_end = debug_line + size;
     while (debug_line < debug_line_end) {
-	if (parse_debug_line_cu(num_traces, traces, &debug_line, obj, lines, offset))
-	    return -1;
+	parse_debug_line_cu(num_traces, traces, &debug_line, lines);
     }
     if (debug_line != debug_line_end) {
 	kprintf("Unexpected size of .debug_line in %s\n",
 		binary_filename);
     }
-    return 0;
 }
 
 /* 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
-append_obj(obj_info_t **objp)
-{
-    obj_info_t *newobj = calloc(1, sizeof(obj_info_t));
-    if (*objp) (*objp)->next = newobj;
-    *objp = newobj;
-}
+fill_lines(int num_traces, void **traces, char **syms, int check_debuglink,
+	   line_info_t *current_line, line_info_t *lines);
 
 static void
-follow_debuglink(const char *debuglink, int num_traces, void **traces,
-		 obj_info_t **objp, line_info_t *lines, int offset)
+follow_debuglink(char *debuglink, int num_traces, void **traces, char **syms,
+		 line_info_t *current_line, line_info_t *lines)
 {
     /* 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";
-    const size_t global_debug_dir_len = sizeof(global_debug_dir) - 1;
-    char *p;
-    obj_info_t *o1 = *objp, *o2;
-    size_t len;
+    char *p, *subdir;
 
     p = strrchr(binary_filename, '/');
     if (!p) {
@@ -463,27 +441,25 @@ follow_debuglink(const char *debuglink, int num_traces, void **traces,
     }
     p[1] = '\0';
 
-    len = strlen(binary_filename);
-    if (len >= PATH_MAX - global_debug_dir_len)
-	len = PATH_MAX - global_debug_dir_len - 1;
-    memmove(binary_filename + global_debug_dir_len, binary_filename, len);
-    memcpy(binary_filename, global_debug_dir, global_debug_dir_len);
-    len += global_debug_dir_len;
-    strlcpy(binary_filename + len, debuglink, PATH_MAX - len);
-
-    append_obj(objp);
-    o2 = *objp;
-    o2->base_addr = o1->base_addr;
-    o2->path = o1->path;
-    fill_lines(num_traces, traces, 0, objp, lines, offset);
+    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);
 }
 
 /* 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)
 {
-    int i, j;
+    int i;
     char *shstr;
     char *section_name;
     ElfW(Ehdr) *ehdr;
@@ -492,28 +468,23 @@ fill_lines(int num_traces, void **traces, 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;
-    bool compressed_p = false;
 
     fd = open(binary_filename, O_RDONLY);
     if (fd < 0) {
-	goto fail;
+	return;
     }
     filesize = lseek(fd, 0, SEEK_END);
     if (filesize < 0) {
 	int e = errno;
 	close(fd);
 	kprintf("lseek: %s\n", strerror(e));
-	goto fail;
+	return;
     }
 #if SIZEOF_OFF_T > SIZEOF_SIZE_T
     if (filesize > (off_t)SIZE_MAX) {
 	close(fd);
 	kprintf("Too large file %s\n", binary_filename);
-	goto fail;
+	return;
     }
 #endif
     lseek(fd, 0, SEEK_SET);
@@ -523,7 +494,7 @@ fill_lines(int num_traces, void **traces, int check_debuglink,
 	int e = errno;
 	close(fd);
 	kprintf("mmap: %s\n", strerror(e));
-	goto fail;
+	return;
     }
 
     ehdr = (ElfW(Ehdr) *)file;
@@ -533,12 +504,21 @@ fill_lines(int num_traces, void **traces, int check_debuglink,
 	 * it match non-elf file.
 	 */
 	close(fd);
-	goto fail;
+	return;
     }
 
-    obj->fd = fd;
-    obj->mapped = file;
-    obj->mapped_size = (size_t)filesize;
+    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;
+	}
+    }
 
     shdr = (ElfW(Shdr) *)(file + ehdr->e_shoff);
 
@@ -547,91 +527,11 @@ fill_lines(int num_traces, void **traces, int check_debuglink,
 
     for (i = 0; i < ehdr->e_shnum; i++) {
 	section_name = shstr + shdr[i].sh_name;
-	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;
-	  case SHT_PROGBITS:
-	    if (!strcmp(section_name, ".debug_line")) {
-		if (shdr[i].sh_flags & SHF_COMPRESSED) {
-		    compressed_p = true;
-		}
-		debug_line_shdr = shdr + i;
-	    }
-	    else if (!strcmp(section_name, ".gnu_debuglink")) {
-		gnu_debuglink_shdr = shdr + i;
-	    }
+	if (!strcmp(section_name, ".debug_line")) {
+	    debug_line_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;
-	    }
+	} else if (!strcmp(section_name, ".gnu_debuglink")) {
+	    gnu_debuglink_shdr = shdr + i;
 	}
     }
 
@@ -640,164 +540,111 @@ fill_lines(int num_traces, void **traces, 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,
-			     objp, lines, offset);
+			     num_traces, traces, syms,
+			     current_line, lines);
 	}
-	goto finish;
+	return;
     }
 
-    if (!compressed_p &&
-	    parse_debug_line(num_traces, traces,
-			 file + debug_line_shdr->sh_offset,
-			 debug_line_shdr->sh_size,
-			 obj, lines, offset))
-	goto fail;
-finish:
-    return dladdr_fbase;
-fail:
-    return (uintptr_t)-1;
+    parse_debug_line(num_traces, traces,
+		     file + debug_line_shdr->sh_offset,
+		     debug_line_shdr->sh_size,
+		     lines);
 }
 
-#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__)
-static ssize_t
-main_exe_path(void)
-{
-# 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__)
-static ssize_t
-main_exe_path(void)
+#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)
 {
-    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;
+    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;
+	}
     }
-    len--; /* sysctl sets strlen+1 */
-    return len;
+    return 0;
 }
-#else
-#undef HAVE_MAIN_EXE_PATH
-#endif
+
+#endif /* HAVE_DL_ITERATE_PHDR */
 
 void
-rb_dump_backtrace_with_lines(int num_traces, void **traces)
+rb_dump_backtrace_with_lines(int num_traces, void **trace, char **syms)
 {
     int i;
     /* async-signal unsafe */
-    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;
-	    }
+    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;
+	}
+
+	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++) {
-	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;
+	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);
 		}
+	    } else {
+		kprintf("%s ???:%d\n", syms[i], line->line);
 	    }
-	    *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;
-	    strlcpy(binary_filename, path, PATH_MAX);
-	    if (fill_lines(num_traces, traces, 1, &obj, lines, i) == (uintptr_t)-1)
-		break;
+	} else {
+	    kprintf("%s\n", syms[i]);
 	}
-next_line:
-	continue;
     }
 
-    /* output */
     for (i = 0; i < num_traces; i++) {
 	line_info_t *line = &lines[i];
-	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) [0x%lx]\n", line->path, addr-line->base_addr, 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);
+	if (line->fd) {
+	    munmap(line->mapped, line->mapped_size);
+	    close(line->fd);
 	}
-	free(o);
     }
     free(lines);
-    free(dladdr_fbases);
 }
 
 /* From FreeBSD's lib/libstand/printf.c */
@@ -839,7 +686,8 @@ next_line:
 
 #include <stdarg.h>
 #define MAXNBUF (sizeof(intmax_t) * CHAR_BIT + 1)
-static inline int toupper(int c) { return ('A' <= c && c <= 'Z') ? (c&0x5f) : c; }
+extern int rb_toupper(int c);
+#define    toupper(c)  rb_toupper(c)
 #define    hex2ascii(hex)  (hex2ascii_data[hex])
 char const hex2ascii_data[] = "0123456789abcdefghijklmnopqrstuvwxyz";
 static inline int imax(int a, int b) { return (a > b ? a : b); }
diff --git a/addr2line.h b/addr2line.h
index d99f010934..3782d89e07 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);
+rb_dump_backtrace_with_lines(int num_traces, void **traces, char **syms);
 
 #endif /* USE_ELF */
 
diff --git a/appveyor.yml b/appveyor.yml
deleted file mode 100644
index 22c7bdce6a..0000000000
--- a/appveyor.yml
+++ /dev/null
@@ -1,55 +0,0 @@
----
-shallow_clone: true
-platform:
-  - x64
-environment:
-  ruby_version: "24-%Platform%"
-  zlib_version: "1.2.11"
-  matrix:
-    - vs: "120"
-install:
-  - chcp
-  - SET BITS=%Platform:x86=32%
-  - SET BITS=%BITS:x=%
-  - SET OPENSSL_DIR=c:\OpenSSL-Win%BITS%
-  - CALL SET vcvars=%%^VS%VS%COMNTOOLS^%%..\..\VC\vcvarsall.bat
-  - SET vcvars
-  - '"%vcvars%" %Platform:x64=amd64%'
-  - SET ruby_path=C:\Ruby%ruby_version:-x86=%
-  - SET PATH=\usr\local\bin;%ruby_path%\bin;%PATH%;C:\msys64\mingw64\bin;C:\msys64\usr\bin
-  - ruby --version
-  - 'cl'
-  - SET
-  - echo> Makefile srcdir=.
-  - echo>> Makefile MSC_VER=0
-  - echo>> Makefile RT=none
-  - echo>> Makefile RT_VER=0
-  - echo>> Makefile BUILTIN_ENCOBJS=nul
-  - type win32\Makefile.sub >> Makefile
-  - nmake %mflags% touch-unicode-files
-  - nmake %mflags% up incs UNICODE_FILES=.
-  - del Makefile
-  - mkdir \usr\local\bin
-  - mkdir \usr\local\include
-  - mkdir \usr\local\lib
-  - appveyor DownloadFile https://zlib.net/zlib%zlib_version:.=%.zip
-  - 7z x -o%APPVEYOR_BUILD_FOLDER%\ext\zlib zlib%zlib_version:.=%.zip
-  - for %%I in (%OPENSSL_DIR%\*.dll) do mklink /h \usr\local\bin\%%~nxI %%I
-  - mkdir %Platform%-mswin_%vs%
-  - ps: Get-ChildItem "win32" -Recurse | foreach {$_.Attributes = 'Readonly'}
-  - ps: Get-Item $env:Platform"-mswin_"$env:vs | foreach {$_.Attributes = 'Normal'}
-build_script:
-  - cd %APPVEYOR_BUILD_FOLDER%
-  - cd %Platform%-mswin_%vs%
-  - ..\win32\configure.bat --without-ext=+,dbm,gdbm,readline --with-opt-dir=/usr/local --with-openssl-dir=%OPENSSL_DIR:\=/%
-  - nmake -l
-  - nmake install-nodoc
-  - \usr\bin\ruby -v -e "p :locale => Encoding.find('locale'), :filesystem => Encoding.find('filesystem')"
-test_script:
-  - set /a JOBS=%NUMBER_OF_PROCESSORS%
-  - nmake -l "TESTOPTS=-v -q" btest
-  - nmake -l "TESTOPTS=-v -q" test-basic
-  - nmake -l "TESTOPTS=-q -j%JOBS%" test-all
-  - nmake -l test-spec
-matrix:
-  fast_finish: true
diff --git a/array.c b/array.c
index fa88f47ae9..5d01fdb551 100644
--- a/array.c
+++ b/array.c
@@ -11,26 +11,89 @@
 
 **********************************************************************/
 
-#include "internal.h"
+#include "ruby/ruby.h"
 #include "ruby/util.h"
 #include "ruby/st.h"
+#include "ruby/encoding.h"
+#include "internal.h"
 #include "probes.h"
 #include "id.h"
-#include "debug_counter.h"
 
 #ifndef ARRAY_DEBUG
 # define NDEBUG
 #endif
-#include "ruby_assert.h"
+#include <assert.h>
 
 VALUE rb_cArray;
 
-/* for OPTIMIZED_CMP: */
-#define id_cmp idCmp
+static ID id_cmp, id_div, id_power;
 
 #define ARY_DEFAULT_SIZE 16
 #define ARY_MAX_SIZE (LONG_MAX / (int)sizeof(VALUE))
-#define SMALL_ARRAY_LEN 16
+
+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);
+	OBJ_WRITTEN(ary, Qundef, val);
+    });
+}
+
+static void
+ary_memcpy(VALUE ary, long beg, long argc, const VALUE *argv)
+{
+#if 1
+    if (OBJ_PROMOTED(ary)) {
+	if (argc > (int)(128/sizeof(VALUE)) /* is magic number (cache line size) */) {
+	    rb_gc_writebarrier_remember_promoted(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++) {
+		    OBJ_WRITE(ary, &ptr[i+beg], argv[i]);
+		}
+	    });
+	}
+    }
+    else {
+	RARRAY_PTR_USE(ary, ptr, {
+	    MEMCPY(ptr+beg, argv, VALUE, argc);
+	});
+    }
+#else
+    /* use shady (traditional way) */
+    MEMCPY(RARRAY_PTR(ary)+beg, argv, VALUE, argc);
+#endif
+}
 
 # define ARY_SHARED_P(ary) \
     (assert(!FL_TEST((ary), ELTS_SHARED) || !FL_TEST((ary), RARRAY_EMBED_FLAG)), \
@@ -116,7 +179,7 @@ VALUE rb_cArray;
     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_); \
+    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))
@@ -132,74 +195,6 @@ VALUE rb_cArray;
     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)
 {
@@ -224,12 +219,13 @@ ary_resize_capa(VALUE ary, long capacity)
         if (!ARY_EMBED_P(ary)) {
             long len = RARRAY_LEN(ary);
 	    const VALUE *ptr = RARRAY_CONST_PTR(ary);
+	    size_t size = ARY_HEAP_SIZE(ary);
 
 	    if (len > capacity) len = capacity;
             MEMCPY((VALUE *)RARRAY(ary)->as.ary, ptr, VALUE, len);
             FL_SET_EMBED(ary);
             ARY_SET_LEN(ary, len);
-	    ruby_xfree((VALUE *)ptr);
+	    ruby_sized_xfree((VALUE *)ptr, size);
         }
     }
 }
@@ -348,28 +344,21 @@ rb_ary_modify(VALUE ary)
             ARY_SET_CAPA(ary, len);
             ARY_SET_PTR(ary, ptr);
         }
-
-	rb_gc_writebarrier_remember(ary);
     }
 }
 
-static VALUE
+static void
 ary_ensure_room_for_push(VALUE ary, long add_len)
 {
-    long old_len = RARRAY_LEN(ary);
-    long new_len = old_len + add_len;
+    long new_len = RARRAY_LEN(ary) + 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_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, then it is likely it participate in push/shift pattern */
@@ -378,21 +367,16 @@ ary_ensure_room_for_push(VALUE ary, long add_len)
 		    if (new_len > capa - (capa >> 6)) {
 			ary_double_capa(ary, new_len);
 		    }
-		    return ary;
 		}
+		return;
 	    }
 	}
-	rb_ary_modify(ary);
-    }
-    else {
-	rb_ary_modify_check(ary);
     }
+    rb_ary_modify(ary);
     capa = ARY_CAPA(ary);
     if (new_len > capa) {
 	ary_double_capa(ary, new_len);
     }
-
-    return ary;
 }
 
 /*
@@ -459,7 +443,10 @@ ary_alloc(VALUE klass)
 static VALUE
 empty_ary_alloc(VALUE klass)
 {
-    RUBY_DTRACE_CREATE_HOOK(ARRAY, 0);
+    if (RUBY_DTRACE_ARRAY_CREATE_ENABLED()) {
+	RUBY_DTRACE_ARRAY_CREATE(0, rb_sourcefile(), rb_sourceline());
+    }
+
     return ary_alloc(klass);
 }
 
@@ -475,16 +462,21 @@ ary_new(VALUE klass, long capa)
 	rb_raise(rb_eArgError, "array size too big");
     }
 
-    RUBY_DTRACE_CREATE_HOOK(ARRAY, capa);
+    if (RUBY_DTRACE_ARRAY_CREATE_ENABLED()) {
+	RUBY_DTRACE_ARRAY_CREATE(capa, rb_sourcefile(), rb_sourceline());
+    }
 
-    ary = ary_alloc(klass);
     if (capa > RARRAY_EMBED_LEN_MAX) {
 	ptr = ALLOC_N(VALUE, capa);
+	ary = ary_alloc(klass);
         FL_UNSET_EMBED(ary);
         ARY_SET_PTR(ary, ptr);
         ARY_SET_CAPA(ary, capa);
         ARY_SET_HEAP_LEN(ary, 0);
     }
+    else {
+	ary = ary_alloc(klass);
+    }
 
     return ary;
 }
@@ -502,7 +494,7 @@ rb_ary_new(void)
 }
 
 VALUE
-(rb_ary_new_from_args)(long n, ...)
+rb_ary_new_from_args(long n, ...)
 {
     va_list ar;
     VALUE ary;
@@ -512,7 +504,7 @@ VALUE
 
     va_start(ar, n);
     for (i=0; i<n; i++) {
-	ARY_SET(ary, i, va_arg(ar, VALUE));
+	RARRAY_ASET(ary, i, va_arg(ar, VALUE));
     }
     va_end(ar);
 
@@ -521,11 +513,11 @@ VALUE
 }
 
 VALUE
-rb_ary_tmp_new_from_values(VALUE klass, long n, const VALUE *elts)
+rb_ary_new_from_values(long n, const VALUE *elts)
 {
     VALUE ary;
 
-    ary = ary_new(klass, n);
+    ary = rb_ary_new2(n);
     if (n > 0 && elts) {
 	ary_memcpy(ary, 0, n, elts);
 	ARY_SET_LEN(ary, n);
@@ -535,43 +527,24 @@ rb_ary_tmp_new_from_values(VALUE klass, long n, const VALUE *elts)
 }
 
 VALUE
-rb_ary_new_from_values(long n, const VALUE *elts)
-{
-    return rb_ary_tmp_new_from_values(rb_cArray, n, elts);
-}
-
-VALUE
 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)) {
-	RB_DEBUG_COUNTER_INC(obj_ary_ptr);
 	ruby_sized_xfree((void *)ARY_HEAP_PTR(ary), ARY_HEAP_SIZE(ary));
     }
-    else {
-	RB_DEBUG_COUNTER_INC(obj_ary_embed);
-    }
 }
 
 RUBY_FUNC_EXPORTED size_t
 rb_ary_memsize(VALUE ary)
 {
     if (ARY_OWNS_HEAP_P(ary)) {
-	return ARY_CAPA(ary) * sizeof(VALUE);
+	return RARRAY(ary)->as.heap.aux.capa * sizeof(VALUE);
     }
     else {
 	return 0;
@@ -604,7 +577,7 @@ ary_make_shared(VALUE ary)
     }
     else {
 	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));
+	NEWOBJ_OF(shared, struct RArray, 0, T_ARRAY); /* keep shared ary as shady */
         FL_UNSET_EMBED(shared);
 
 	ARY_SET_LEN((VALUE)shared, capa);
@@ -641,17 +614,16 @@ rb_assoc_new(VALUE car, VALUE cdr)
     return rb_ary_new3(2, car, cdr);
 }
 
-VALUE
-rb_to_array_type(VALUE ary)
+static VALUE
+to_ary(VALUE ary)
 {
-    return rb_convert_type_with_id(ary, T_ARRAY, "Array", idTo_ary);
+    return rb_convert_type(ary, T_ARRAY, "Array", "to_ary");
 }
-#define to_ary rb_to_array_type
 
 VALUE
 rb_check_array_type(VALUE ary)
 {
-    return rb_check_convert_type_with_id(ary, T_ARRAY, "Array", idTo_ary);
+    return rb_check_convert_type(ary, T_ARRAY, "Array", "to_ary");
 }
 
 /*
@@ -681,16 +653,16 @@ rb_ary_s_try_convert(VALUE dummy, VALUE ary)
 
 /*
  *  call-seq:
- *     Array.new(size=0, default=nil)
+ *     Array.new(size=0, obj=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 +default+ are sent, an array is created with
- *  +size+ copies of +default+.  Take notice that all elements will reference the
- *  same object +default+.
+ *  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+.
  *
  *  The second form creates a copy of the array passed as a parameter (the
  *  array is generated by calling to_ary on the parameter).
@@ -764,14 +736,12 @@ 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()) {
@@ -839,7 +809,7 @@ rb_ary_store(VALUE ary, long idx, VALUE val)
     if (idx >= len) {
 	ARY_SET_LEN(ary, idx + 1);
     }
-    ARY_SET(ary, idx, val);
+    RARRAY_ASET(ary, idx, val);
 }
 
 static VALUE
@@ -883,7 +853,7 @@ enum ary_take_pos_flags
 };
 
 static VALUE
-ary_take_first_or_last(int argc, const VALUE *argv, VALUE ary, enum ary_take_pos_flags last)
+ary_take_first_or_last(int argc, VALUE *argv, VALUE ary, enum ary_take_pos_flags last)
 {
     VALUE nv;
     long n;
@@ -913,10 +883,7 @@ ary_take_first_or_last(int argc, const VALUE *argv, VALUE ary, enum ary_take_pos
  *  expression returns the array itself, so several appends
  *  may be chained together.
  *
- *     a = [ 1, 2 ]
- *     a << "c" << "d" << [ 3, 4 ]
- *             #=>  [ 1, 2, "c", "d", [ 3, 4 ] ]
- *     a
+ *     [ 1, 2 ] << "c" << "d" << [ 3, 4 ]
  *             #=>  [ 1, 2, "c", "d", [ 3, 4 ] ]
  *
  */
@@ -925,20 +892,33 @@ VALUE
 rb_ary_push(VALUE ary, VALUE item)
 {
     long idx = RARRAY_LEN(ary);
-    VALUE target_ary = ary_ensure_room_for_push(ary, 1);
-    RARRAY_PTR_USE(ary, ptr, {
-	RB_OBJ_WRITE(target_ary, &ptr[idx], item);
-    });
+
+    ary_ensure_room_for_push(ary, 1);
+    RARRAY_ASET(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_ASET(ary, idx, item);
     ARY_SET_LEN(ary, idx + 1);
     return ary;
 }
 
 VALUE
-rb_ary_cat(VALUE ary, const VALUE *argv, long len)
+rb_ary_cat(VALUE ary, const VALUE *ptr, long len)
 {
     long oldlen = RARRAY_LEN(ary);
-    VALUE target_ary = ary_ensure_room_for_push(ary, len);
-    ary_memcpy0(ary, oldlen, len, argv, target_ary);
+
+    ary_ensure_room_for_push(ary, len);
+    ary_memcpy(ary, oldlen, len, ptr);
     ARY_SET_LEN(ary, oldlen + len);
     return ary;
 }
@@ -955,7 +935,7 @@ rb_ary_cat(VALUE ary, const VALUE *argv, long len)
  *     a = [ "a", "b", "c" ]
  *     a.push("d", "e", "f")
  *             #=> ["a", "b", "c", "d", "e", "f"]
- *     [1, 2, 3].push(4).push(5)
+ *     [1, 2, 3,].push(4).push(5)
  *             #=> [1, 2, 3, 4, 5]
  */
 
@@ -1035,11 +1015,11 @@ rb_ary_shift(VALUE ary)
 	}
         assert(!ARY_EMBED_P(ary)); /* ARY_EMBED_LEN_MAX < ARY_DEFAULT_SIZE */
 
-	ARY_SET(ary, 0, Qnil);
+	RARRAY_ASET(ary, 0, Qnil);
 	ary_make_shared(ary);
     }
     else if (ARY_SHARED_OCCUPIED(ARY_SHARED(ary))) {
-	RARRAY_PTR_USE(ary, ptr, ptr[0] = Qnil);
+	RARRAY_ASET(ary, 0, Qnil);
     }
     ARY_INCREASE_PTR(ary, 1);		/* shift ptr */
     ARY_INCREASE_LEN(ary, -1);
@@ -1085,28 +1065,21 @@ rb_ary_shift_m(int argc, VALUE *argv, VALUE ary)
     n = RARRAY_LEN(result);
     if (ARY_SHARED_P(ary)) {
 	if (ARY_SHARED_OCCUPIED(ARY_SHARED(ary))) {
-	  setup_occupied_shared:
 	    ary_mem_clear(ary, 0, n);
 	}
         ARY_INCREASE_PTR(ary, n);
     }
     else {
-	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;
-	}
+	RARRAY_PTR_USE(ary, ptr, {
+	    MEMMOVE(ptr, ptr + n, VALUE, RARRAY_LEN(ary)-n);
+	}); /* WB: no new reference */
     }
     ARY_INCREASE_LEN(ary, -n);
 
     return result;
 }
 
-static VALUE
+static void
 ary_ensure_room_for_unshift(VALUE ary, int argc)
 {
     long len = RARRAY_LEN(ary);
@@ -1114,10 +1087,6 @@ ary_ensure_room_for_unshift(VALUE ary, int argc)
     long capa;
     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);
@@ -1152,16 +1121,12 @@ ary_ensure_room_for_unshift(VALUE ary, int argc)
 	    head = sharedp + argc + room;
 	}
 	ARY_SET_PTR(ary, head - argc);
-	assert(ARY_SHARED_OCCUPIED(ARY_SHARED(ary)));
-	return ARY_SHARED(ary);
     }
     else {
 	/* sliding items */
 	RARRAY_PTR_USE(ary, ptr, {
 	    MEMMOVE(ptr + argc, ptr, VALUE, len);
 	});
-
-	return ary;
     }
 }
 
@@ -1181,15 +1146,14 @@ 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;
     }
 
-    target_ary = ary_ensure_room_for_unshift(ary, argc);
-    ary_memcpy0(ary, 0, argc, argv, target_ary);
+    ary_ensure_room_for_unshift(ary, argc);
+    ary_memcpy(ary, 0, argc, argv);
     ARY_SET_LEN(ary, len + argc);
     return ary;
 }
@@ -1215,17 +1179,10 @@ rb_ary_elt(VALUE ary, long offset)
 VALUE
 rb_ary_entry(VALUE ary, long offset)
 {
-    long len = RARRAY_LEN(ary);
-    const VALUE *ptr = RARRAY_CONST_PTR(ary);
-    if (len == 0) return Qnil;
     if (offset < 0) {
-        offset += len;
-        if (offset < 0) return Qnil;
+	offset += RARRAY_LEN(ary);
     }
-    else if (len <= offset) {
-        return Qnil;
-    }
-    return ptr[offset];
+    return rb_ary_elt(ary, offset);
 }
 
 VALUE
@@ -1283,31 +1240,23 @@ rb_ary_subseq(VALUE ary, long beg, long len)
  */
 
 VALUE
-rb_ary_aref(int argc, const VALUE *argv, VALUE ary)
+rb_ary_aref(int argc, VALUE *argv, VALUE ary)
 {
-    rb_check_arity(argc, 1, 2);
+    VALUE arg;
+    long beg, len;
+
     if (argc == 2) {
-	return rb_ary_aref2(ary, argv[0], argv[1]);
+	beg = NUM2LONG(argv[0]);
+	len = NUM2LONG(argv[1]);
+	if (beg < 0) {
+	    beg += RARRAY_LEN(ary);
+	}
+	return rb_ary_subseq(ary, beg, len);
     }
-    return rb_ary_aref1(ary, argv[0]);
-}
-
-VALUE
-rb_ary_aref2(VALUE ary, VALUE b, VALUE e)
-{
-    long beg = NUM2LONG(b);
-    long len = NUM2LONG(e);
-    if (beg < 0) {
-	beg += RARRAY_LEN(ary);
+    if (argc != 1) {
+	rb_scan_args(argc, argv, "11", NULL, NULL);
     }
-    return rb_ary_subseq(ary, beg, len);
-}
-
-VALUE
-rb_ary_aref1(VALUE ary, VALUE arg)
-{
-    long beg, len;
-
+    arg = argv[0];
     /* special case - speeding up */
     if (FIXNUM_P(arg)) {
 	return rb_ary_entry(ary, FIX2LONG(arg));
@@ -1337,7 +1286,7 @@ rb_ary_aref1(VALUE ary, VALUE arg)
  *     a.at(-1)    #=> "e"
  */
 
-VALUE
+static VALUE
 rb_ary_at(VALUE ary, VALUE pos)
 {
     return rb_ary_entry(ary, NUM2LONG(pos));
@@ -1386,7 +1335,7 @@ rb_ary_first(int argc, VALUE *argv, VALUE ary)
  */
 
 VALUE
-rb_ary_last(int argc, const VALUE *argv, VALUE ary)
+rb_ary_last(int argc, VALUE *argv, VALUE ary)
 {
     if (argc == 0) {
 	long len = RARRAY_LEN(ary);
@@ -1410,9 +1359,8 @@ rb_ary_last(int argc, const VALUE *argv, VALUE ary)
  *  +default+ value.
  *
  *  Alternatively, if a block is given it will only be executed when an
- *  invalid +index+ is referenced.
- *
- *  Negative values of +index+ count from the end of the array.
+ *  invalid +index+ is referenced.  Negative values of +index+ count from the
+ *  end of the array.
  *
  *     a = [ 11, 22, 33, 44 ]
  *     a.fetch(1)               #=> 22
@@ -1479,8 +1427,9 @@ rb_ary_fetch(int argc, VALUE *argv, VALUE ary)
 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);
@@ -1495,11 +1444,20 @@ rb_ary_index(int argc, VALUE *argv, VALUE ary)
     val = argv[0];
     if (rb_block_given_p())
 	rb_warn("given block not used");
-    for (i=0; i<RARRAY_LEN(ary); i++) {
-	VALUE e = RARRAY_AREF(ary, i);
-	if (rb_equal(e, 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;
 }
@@ -1531,6 +1489,7 @@ 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), len;
 
@@ -1549,11 +1508,21 @@ rb_ary_rindex(int argc, VALUE *argv, VALUE ary)
     val = argv[0];
     if (rb_block_given_p())
 	rb_warn("given block not used");
+    ptr = RARRAY_CONST_PTR(ary);
     while (i--) {
-	VALUE e = RARRAY_AREF(ary, i);
-	if (rb_equal(e, val)) {
+	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;
 	}
+	if (i > (len = RARRAY_LEN(ary))) {
+	    i = len;
+	}
+	ptr = RARRAY_CONST_PTR(ary);
     }
     return Qnil;
 }
@@ -1568,10 +1537,10 @@ rb_ary_to_ary(VALUE obj)
 }
 
 static void
-rb_ary_splice(VALUE ary, long beg, long len, const VALUE *rptr, long rlen)
+rb_ary_splice(VALUE ary, long beg, long len, VALUE rpl)
 {
+    long rlen;
     long olen;
-    long rofs;
 
     if (len < 0) rb_raise(rb_eIndexError, "negative length (%ld)", len);
     olen = RARRAY_LEN(ary);
@@ -1586,31 +1555,29 @@ rb_ary_splice(VALUE ary, long beg, long len, const VALUE *rptr, long rlen)
 	len = olen - beg;
     }
 
-    {
-	const VALUE *optr = RARRAY_CONST_PTR(ary);
-	rofs = (rptr >= optr && rptr < optr + olen) ? rptr - optr : -1;
+    if (rpl == Qundef) {
+	rlen = 0;
+    }
+    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 >= olen) {
-	VALUE target_ary;
 	if (beg > ARY_MAX_SIZE - rlen) {
 	    rb_raise(rb_eIndexError, "index %ld too big", beg);
 	}
-	target_ary = ary_ensure_room_for_push(ary, rlen-len); /* len is 0 or negative */
+	ary_ensure_room_for_push(ary, rlen-len); /* len is 0 or negative */
 	len = beg + rlen;
 	ary_mem_clear(ary, olen, beg - olen);
 	if (rlen > 0) {
-	    if (rofs != -1) rptr = RARRAY_CONST_PTR(ary) + rofs;
-	    ary_memcpy0(ary, beg, rlen, rptr, target_ary);
+	    ary_memcpy(ary, beg, rlen, RARRAY_CONST_PTR(rpl));
 	}
 	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 = olen + rlen - len;
 	if (alen >= ARY_CAPA(ary)) {
@@ -1624,8 +1591,7 @@ rb_ary_splice(VALUE ary, long beg, long len, const VALUE *rptr, long rlen)
 	    ARY_SET_LEN(ary, alen);
 	}
 	if (rlen > 0) {
-	    if (rofs != -1) rptr = RARRAY_CONST_PTR(ary) + rofs;
-	    MEMMOVE(RARRAY_PTR(ary) + beg, rptr, VALUE, rlen);
+	    MEMMOVE(RARRAY_PTR(ary) + beg, RARRAY_CONST_PTR(rpl), VALUE, rlen);
 	}
     }
 }
@@ -1730,13 +1696,13 @@ static VALUE
 rb_ary_aset(int argc, VALUE *argv, VALUE ary)
 {
     long offset, beg, len;
-    VALUE rpl;
 
     if (argc == 3) {
 	rb_ary_modify_check(ary);
 	beg = NUM2LONG(argv[0]);
 	len = NUM2LONG(argv[1]);
-	goto range;
+	rb_ary_splice(ary, beg, len, argv[2]);
+	return argv[2];
     }
     rb_check_arity(argc, 2, 2);
     rb_ary_modify_check(ary);
@@ -1746,11 +1712,8 @@ rb_ary_aset(int argc, VALUE *argv, VALUE ary)
     }
     if (rb_range_beg_len(argv[0], &beg, &len, RARRAY_LEN(ary), 1)) {
 	/* check if idx is Range */
-      range:
-	rpl = rb_ary_to_ary(argv[argc-1]);
-	rb_ary_splice(ary, beg, len, RARRAY_CONST_PTR(rpl), RARRAY_LEN(rpl));
-	RB_GC_GUARD(rpl);
-	return argv[argc-1];
+	rb_ary_splice(ary, beg, len, argv[1]);
+	return argv[1];
     }
 
     offset = NUM2LONG(argv[0]);
@@ -1766,9 +1729,7 @@ 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. 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.
+ *  the last element.
  *
  *     a = %w{ a b c d }
  *     a.insert(2, 99)         #=> ["a", "b", 99, "c", "d"]
@@ -1782,20 +1743,15 @@ rb_ary_insert(int argc, VALUE *argv, VALUE ary)
 
     rb_check_arity(argc, 1, UNLIMITED_ARGUMENTS);
     rb_ary_modify_check(ary);
-    pos = NUM2LONG(argv[0]);
     if (argc == 1) return ary;
+    pos = NUM2LONG(argv[0]);
     if (pos == -1) {
 	pos = RARRAY_LEN(ary);
     }
-    else if (pos < 0) {
-	long minpos = -RARRAY_LEN(ary) - 1;
-	if (pos < minpos) {
-	    rb_raise(rb_eIndexError, "index %ld too small for array; minimum: %ld",
-		     pos, minpos);
-	}
+    if (pos < 0) {
 	pos++;
     }
-    rb_ary_splice(ary, pos, 0, argv + 1, argc - 1);
+    rb_ary_splice(ary, pos, 0, rb_ary_new4(argc - 1, argv + 1));
     return ary;
 }
 
@@ -1814,9 +1770,9 @@ ary_enum_length(VALUE ary, VALUE args, VALUE eobj)
  *     ary.each                   -> Enumerator
  *
  *  Calls the given block once for each element in +self+, passing that element
- *  as a parameter.  Returns the array itself.
+ *  as a parameter.
  *
- *  If no block is given, an Enumerator is returned.
+ *  An Enumerator is returned if no block is given.
  *
  *     a = [ "a", "b", "c" ]
  *     a.each {|x| print x, " -- " }
@@ -1827,9 +1783,10 @@ ary_enum_length(VALUE ary, VALUE args, VALUE eobj)
  */
 
 VALUE
-rb_ary_each(VALUE ary)
+rb_ary_each(VALUE array)
 {
     long i;
+    volatile VALUE ary = array;
 
     RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
     for (i=0; i<RARRAY_LEN(ary); i++) {
@@ -2002,10 +1959,7 @@ ary_join_1(VALUE obj, VALUE ary, VALUE sep, long i, VALUE result, int *first)
 	if (RB_TYPE_P(val, T_STRING)) {
 	  str_join:
 	    rb_str_buf_append(result, val);
-	    if (*first) {
-		rb_enc_copy(result, val);
-		*first = FALSE;
-	    }
+	    *first = FALSE;
 	}
 	else if (RB_TYPE_P(val, T_ARRAY)) {
 	    obj = val;
@@ -2016,7 +1970,6 @@ ary_join_1(VALUE obj, VALUE ary, VALUE sep, long i, VALUE result, int *first)
 	    else {
 		VALUE args[4];
 
-		*first = FALSE;
 		args[0] = val;
 		args[1] = sep;
 		args[2] = result;
@@ -2030,13 +1983,17 @@ ary_join_1(VALUE obj, VALUE ary, VALUE sep, long i, VALUE result, int *first)
 		val = tmp;
 		goto str_join;
 	    }
-	    tmp = rb_check_array_type(val);
+	    tmp = rb_check_convert_type(val, T_ARRAY, "Array", "to_ary");
 	    if (!NIL_P(tmp)) {
 		obj = val;
 		val = tmp;
 		goto ary_join;
 	    }
 	    val = rb_obj_as_string(val);
+	    if (*first) {
+		rb_enc_copy(result, val);
+		*first = FALSE;
+	    }
 	    goto str_join;
 	}
     }
@@ -2087,16 +2044,11 @@ rb_ary_join(VALUE ary, VALUE sep)
  *
  *  Returns a string created by converting each element of the array to
  *  a string, separated by the given +separator+.
- *  If the +separator+ is +nil+, it uses current <code>$,</code>.
- *  If both the +separator+ and <code>$,</code> are +nil+,
- *  it uses an empty string.
+ *  If the +separator+ is +nil+, it uses current $,.
+ *  If both the +separator+ and $, are nil, it uses empty string.
  *
  *     [ "a", "b", "c" ].join        #=> "abc"
  *     [ "a", "b", "c" ].join("-")   #=> "a-b-c"
- *
- *  For nested arrays, join is applied recursively:
- *
- *     [ "a", [1, 2, [:x, :y]], "b" ].join("-")   #=> "a-1-2-x-y-b"
  */
 
 static VALUE
@@ -2179,7 +2131,8 @@ rb_ary_to_a(VALUE ary)
  *     ary.to_h     -> hash
  *
  *  Returns the result of interpreting <i>ary</i> as an array of
- *  <tt>[key, value]</tt> pairs.
+ *  <tt>[key, value]</tt> pairs. Elements other than pairs of
+ *  values are ignored.
  *
  *     [[:foo, :bar], [1, 2]].to_h
  *       # => {:foo => :bar, 1 => 2}
@@ -2189,19 +2142,12 @@ static VALUE
 rb_ary_to_h(VALUE ary)
 {
     long i;
-    VALUE hash = rb_hash_new_with_size(RARRAY_LEN(ary));
+    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);
+	VALUE key_value_pair = rb_check_array_type(rb_ary_elt(ary, i));
+	if (!NIL_P(key_value_pair) && (RARRAY_LEN(key_value_pair) == 2)) {
+	    rb_hash_aset(hash, RARRAY_AREF(key_value_pair, 0), RARRAY_AREF(key_value_pair, 1));
 	}
-	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;
 }
@@ -2390,9 +2336,26 @@ rb_ary_rotate_m(int argc, VALUE *argv, VALUE ary)
 
 struct ary_sort_data {
     VALUE ary;
-    struct cmp_opt_data cmp_opt;
+    int opt_methods;
+    int opt_inited;
+};
+
+enum {
+    sort_opt_Fixnum,
+    sort_opt_String,
+    sort_optimizable_count
 };
 
+#define STRING_P(s) (RB_TYPE_P((s), T_STRING) && CLASS_OF(s) == rb_cString)
+
+#define SORT_OPTIMIZABLE_BIT(type) (1U << TOKEN_PASTE(sort_opt_,type))
+#define SORT_OPTIMIZABLE(data, type) \
+    (((data)->opt_inited & SORT_OPTIMIZABLE_BIT(type)) ? \
+     ((data)->opt_methods & SORT_OPTIMIZABLE_BIT(type)) : \
+     (((data)->opt_inited |= SORT_OPTIMIZABLE_BIT(type)), \
+      rb_method_basic_definition_p(TOKEN_PASTE(rb_c,type), id_cmp) && \
+      ((data)->opt_methods |= SORT_OPTIMIZABLE_BIT(type))))
+
 static VALUE
 sort_reentered(VALUE ary)
 {
@@ -2408,12 +2371,9 @@ sort_1(const void *ap, const void *bp, void *dummy)
     struct ary_sort_data *data = dummy;
     VALUE retval = sort_reentered(data->ary);
     VALUE a = *(const VALUE *)ap, b = *(const VALUE *)bp;
-    VALUE args[2];
     int n;
 
-    args[0] = a;
-    args[1] = b;
-    retval = rb_yield_values2(2, args);
+    retval = rb_yield_values(2, a, b);
     n = rb_cmpint(retval, a, b);
     sort_reentered(data->ary);
     return n;
@@ -2427,17 +2387,14 @@ sort_2(const void *ap, const void *bp, void *dummy)
     VALUE a = *(const VALUE *)ap, b = *(const VALUE *)bp;
     int n;
 
-    if (FIXNUM_P(a) && FIXNUM_P(b) && CMP_OPTIMIZABLE(data->cmp_opt, Fixnum)) {
+    if (FIXNUM_P(a) && FIXNUM_P(b) && SORT_OPTIMIZABLE(data, Fixnum)) {
 	if ((long)a > (long)b) return 1;
 	if ((long)a < (long)b) return -1;
 	return 0;
     }
-    if (STRING_P(a) && STRING_P(b) && CMP_OPTIMIZABLE(data->cmp_opt, String)) {
+    if (STRING_P(a) && STRING_P(b) && SORT_OPTIMIZABLE(data, String)) {
 	return rb_str_cmp(a, b);
     }
-    if (RB_FLOAT_TYPE_P(a) && CMP_OPTIMIZABLE(data->cmp_opt, Float)) {
-	return rb_float_cmp(a, b);
-    }
 
     retval = rb_funcallv(a, id_cmp, 1, &b);
     n = rb_cmpint(retval, a, b);
@@ -2456,18 +2413,15 @@ 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
- *  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+.
- *
- *  The result is not guaranteed to be stable.  When the comparison of two
- *  elements returns +0+, the order of the elements is unpredictable.
- *
- *     ary = [ "d", "a", "e", "c", "b" ]
- *     ary.sort!                     #=> ["a", "b", "c", "d", "e"]
- *     ary.sort! { |a, b| b <=> a }  #=> ["e", "d", "c", "b", "a"]
+ *  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+.
  *
  *  See also Enumerable#sort_by.
+ *
+ *     a = [ "d", "a", "e", "c", "b" ]
+ *     a.sort!                    #=> ["a", "b", "c", "d", "e"]
+ *     a.sort! { |x,y| y <=> x }  #=> ["e", "d", "c", "b", "a"]
  */
 
 VALUE
@@ -2482,8 +2436,8 @@ rb_ary_sort_bang(VALUE ary)
 
 	RBASIC_CLEAR_CLASS(tmp);
 	data.ary = tmp;
-	data.cmp_opt.opt_methods = 0;
-	data.cmp_opt.opt_inited = 0;
+	data.opt_methods = 0;
+	data.opt_inited = 0;
 	RARRAY_PTR_USE(tmp, ptr, {
 	    ruby_qsort(ptr, len, sizeof(VALUE),
 		       rb_block_given_p()?sort_1:sort_2, &data);
@@ -2492,8 +2446,8 @@ rb_ary_sort_bang(VALUE ary)
         if (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);
 	    ary_memcpy(ary, 0, ARY_EMBED_LEN(tmp), ARY_EMBED_PTR(tmp));
             ARY_SET_LEN(ary, ARY_EMBED_LEN(tmp));
         }
@@ -2540,18 +2494,16 @@ 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
- *  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+.
- *
- *  The result is not guaranteed to be stable.  When the comparison of two
- *  elements returns +0+, the order of the elements is unpredictable.
+ *  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+.
  *
- *     ary = [ "d", "a", "e", "c", "b" ]
- *     ary.sort                     #=> ["a", "b", "c", "d", "e"]
- *     ary.sort { |a, b| b <=> a }  #=> ["e", "d", "c", "b", "a"]
  *
  *  See also Enumerable#sort_by.
+ *
+ *     a = [ "d", "a", "e", "c", "b" ]
+ *     a.sort                    #=> ["a", "b", "c", "d", "e"]
+ *     a.sort { |x,y| y <=> x }  #=> ["e", "d", "c", "b", "a"]
  */
 
 VALUE
@@ -2562,8 +2514,6 @@ rb_ary_sort(VALUE ary)
     return ary;
 }
 
-static VALUE rb_ary_bsearch_index(VALUE ary);
-
 /*
  *  call-seq:
  *     ary.bsearch {|x| block }  -> elem
@@ -2571,12 +2521,12 @@ static VALUE rb_ary_bsearch_index(VALUE ary);
  *  By using binary search, finds a value from this array which meets
  *  the given condition in O(log n) where n is the size of the array.
  *
- *  You can use this method in two modes: a find-minimum mode and
+ *  You can use this method in two use cases: a find-minimum mode and
  *  a find-any mode.  In either case, the elements of the array must be
  *  monotone (or sorted) with respect to the block.
  *
- *  In find-minimum mode (this is a good choice for typical use cases),
- *  the block must always return true or false, and there must be an index i
+ *  In find-minimum mode (this is a good choice for typical use case),
+ *  the block must return true or false, and there must be an index i
  *  (0 <= i <= ary.size) so that:
  *
  *  - the block returns false for any element whose index is less than
@@ -2594,7 +2544,7 @@ static VALUE rb_ary_bsearch_index(VALUE ary);
  *     ary.bsearch {|x| x >= 100 } #=> nil
  *
  *  In find-any mode (this behaves like libc's bsearch(3)), the block
- *  must always return a number, and there must be two indices i and j
+ *  must return a number, and there must be two indices i and j
  *  (0 <= i <= j <= ary.size) so that:
  *
  *  - the block returns a positive number for ary[k] if 0 <= k < i,
@@ -2620,30 +2570,6 @@ static VALUE rb_ary_bsearch_index(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. They are
- *  exactly the same as in the case of the #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;
@@ -2654,8 +2580,8 @@ rb_ary_bsearch_index(VALUE ary)
 	val = rb_ary_entry(ary, mid);
 	v = rb_yield(val);
 	if (FIXNUM_P(v)) {
-	    if (v == INT2FIX(0)) return INT2FIX(mid);
-	    smaller = (SIGNED_VALUE)v < 0; /* Fixnum preserves its sign-bit */
+	    if (FIX2INT(v) == 0) return val;
+	    smaller = FIX2INT(v) < 0;
 	}
 	else if (v == Qtrue) {
 	    satisfied = 1;
@@ -2666,16 +2592,16 @@ rb_ary_bsearch_index(VALUE ary)
 	}
 	else if (rb_obj_is_kind_of(v, rb_cNumeric)) {
 	    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;
+	    switch (rb_cmpint(rb_funcallv(v, id_cmp, 1, &zero), v, INT2FIX(0))) {
+		case 0: return val;
+		case 1: smaller = 1; break;
+		case -1: smaller = 0;
 	    }
 	}
 	else {
-	    rb_raise(rb_eTypeError, "wrong argument type %"PRIsVALUE
-		     " (must be numeric, true, false or nil)",
-		     rb_obj_class(v));
+	    rb_raise(rb_eTypeError, "wrong argument type %s"
+		" (must be numeric, true, false or nil)",
+		rb_obj_classname(v));
 	}
 	if (smaller) {
 	    high = mid;
@@ -2684,13 +2610,14 @@ rb_ary_bsearch_index(VALUE ary)
 	    low = mid + 1;
 	}
     }
+    if (low == RARRAY_LEN(ary)) return Qnil;
     if (!satisfied) return Qnil;
-    return INT2FIX(low);
+    return rb_ary_entry(ary, low);
 }
 
 
 static VALUE
-sort_by_i(RB_BLOCK_CALL_FUNC_ARGLIST(i, dummy))
+sort_by_i(VALUE i)
 {
     return rb_yield(i);
 }
@@ -2703,12 +2630,8 @@ sort_by_i(RB_BLOCK_CALL_FUNC_ARGLIST(i, dummy))
  *  Sorts +self+ in place using a set of keys generated by mapping the
  *  values in +self+ through the given block.
  *
- *  The result is not guaranteed to be stable.  When two keys are equal,
- *  the order of the corresponding elements is unpredictable.
- *
  *  If no block is given, an Enumerator is returned instead.
  *
- *  See also Enumerable#sort_by.
  */
 
 static VALUE
@@ -2740,9 +2663,8 @@ rb_ary_sort_by_bang(VALUE ary)
  *  If no block is given, an Enumerator is returned instead.
  *
  *     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"]
+ *     a.map { |x| x + "!" }   #=> ["a!", "b!", "c!", "d!"]
+ *     a                       #=> ["a", "b", "c", "d"]
  */
 
 static VALUE
@@ -2777,8 +2699,6 @@ 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
@@ -2795,7 +2715,7 @@ rb_ary_collect_bang(VALUE ary)
 }
 
 VALUE
-rb_get_values_at(VALUE obj, long olen, int argc, const VALUE *argv, VALUE (*func) (VALUE, long))
+rb_get_values_at(VALUE obj, long olen, int argc, VALUE *argv, VALUE (*func) (VALUE, long))
 {
     VALUE result = rb_ary_new2(argc);
     long beg, len, i, j;
@@ -2879,50 +2799,6 @@ rb_ary_select(VALUE ary)
     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
@@ -2931,8 +2807,6 @@ select_bang_ensure(VALUE a)
  *  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
@@ -2944,14 +2818,23 @@ select_bang_ensure(VALUE a)
 static VALUE
 rb_ary_select_bang(VALUE ary)
 {
-    struct select_bang_arg args;
+    long i1, i2;
 
     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_AREF(ary, i1);
+	if (!RTEST(rb_yield(v))) continue;
+	if (i1 != i2) {
+	    rb_ary_store(ary, i2, v);
+	}
+	i2++;
+    }
 
-    args.ary = ary;
-    args.len[0] = args.len[1] = 0;
-    return rb_ensure(select_bang_i, (VALUE)&args, select_bang_ensure, (VALUE)&args);
+    if (i1 == i2) return Qnil;
+    if (i2 < i1)
+	ARY_SET_LEN(ary, i2);
+    return ary;
 }
 
 /*
@@ -3152,7 +3035,7 @@ rb_ary_slice_bang(int argc, VALUE *argv, VALUE ary)
 	if (len == 0) return rb_ary_new2(0);
 	arg2 = rb_ary_new4(len, RARRAY_CONST_PTR(ary)+pos);
 	RBASIC_SET_CLASS(arg2, rb_obj_class(ary));
-	rb_ary_splice(ary, pos, len, 0, 0);
+	rb_ary_splice(ary, pos, len, Qundef);
 	return arg2;
     }
 
@@ -3187,39 +3070,30 @@ ary_reject(VALUE orig, VALUE result)
     for (i = 0; i < RARRAY_LEN(orig); i++) {
 	VALUE v = RARRAY_AREF(orig, i);
 	if (!RTEST(rb_yield(v))) {
-	    rb_ary_push(result, v);
+	    rb_ary_push_1(result, v);
 	}
     }
     return result;
 }
 
 static VALUE
-reject_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
 ary_reject_bang(VALUE ary)
 {
-    struct select_bang_arg args;
+    long i;
+    VALUE result = Qnil;
 
     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);
+    for (i = 0; i < RARRAY_LEN(ary); ) {
+	VALUE v = RARRAY_AREF(ary, i);
+	if (RTEST(rb_yield(v))) {
+	    rb_ary_delete_at(ary, i);
+	    result = ary;
+	}
+	else {
+	    i++;
+	}
+    }
+    return result;
 }
 
 /*
@@ -3227,10 +3101,11 @@ ary_reject_bang(VALUE ary)
  *     ary.reject! { |item| block }  -> ary or nil
  *     ary.reject!                   -> Enumerator
  *
- *  Deletes every element of +self+ for which the block evaluates to +true+,
- *  if no changes were made returns +nil+.
+ *  Equivalent to Array#delete_if, deleting elements from +self+ for which the
+ *  block evaluates to +true+, but returns +nil+ if no changes were made.
  *
- *  The array may not be changed instantly every time the block is called.
+ *  The array is changed instantly every time the block is called, not after
+ *  the iteration is over.
  *
  *  See also Enumerable#reject and Array#delete_if.
  *
@@ -3250,7 +3125,7 @@ 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+. The ordering of non-rejected elements is maintained.
+ *  block is not +true+.
  *
  *  See also Array#delete_if
  *
@@ -3295,9 +3170,8 @@ rb_ary_delete_if(VALUE ary)
 }
 
 static VALUE
-take_i(RB_BLOCK_CALL_FUNC_ARGLIST(val, cbarg))
+take_i(VALUE val, VALUE *args, int argc, VALUE *argv)
 {
-    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);
@@ -3358,10 +3232,8 @@ rb_ary_zip(int argc, VALUE *argv, VALUE ary)
     if (rb_block_given_p()) {
 	int arity = rb_block_arity();
 
-	if (arity > 1) {
-	    VALUE work, *tmp;
-
-	    tmp = ALLOCV_N(VALUE, work, argc+1);
+	if (arity > 1 && argc+1 < 0x100) {
+	    VALUE *tmp = ALLOCA_N(VALUE, argc+1);
 
 	    for (i=0; i<RARRAY_LEN(ary); i++) {
 		tmp[0] = RARRAY_AREF(ary, i);
@@ -3370,8 +3242,6 @@ rb_ary_zip(int argc, VALUE *argv, VALUE ary)
 		}
 		rb_yield_values2(argc+1, tmp);
 	    }
-
-	    if (work) ALLOCV_END(work);
 	}
 	else {
 	    for (i=0; i<RARRAY_LEN(ary); i++) {
@@ -3556,10 +3426,12 @@ rb_ary_clear(VALUE ary)
 static VALUE
 rb_ary_fill(int argc, VALUE *argv, VALUE ary)
 {
-    VALUE item = Qundef, arg1, arg2;
+    VALUE item, arg1, arg2;
     long beg = 0, end = 0, len = 0;
+    int block_p = FALSE;
 
     if (rb_block_given_p()) {
+	block_p = TRUE;
 	rb_scan_args(argc, argv, "02", &arg1, &arg2);
 	argc += 1;		/* hackish */
     }
@@ -3601,14 +3473,14 @@ rb_ary_fill(int argc, VALUE *argv, VALUE ary)
 	ARY_SET_LEN(ary, end);
     }
 
-    if (item == Qundef) {
+    if (block_p) {
 	VALUE v;
 	long i;
 
 	for (i=beg; i<end; i++) {
 	    v = rb_yield(LONG2NUM(i));
 	    if (i>=RARRAY_LEN(ary)) break;
-	    ARY_SET(ary, i, v);
+	    RARRAY_ASET(ary, i, v);
 	}
     }
     else {
@@ -3630,13 +3502,6 @@ rb_ary_fill(int argc, VALUE *argv, VALUE ary)
  *     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.
  */
 
@@ -3658,62 +3523,32 @@ rb_ary_plus(VALUE x, VALUE y)
     return z;
 }
 
-static VALUE
-ary_append(VALUE x, VALUE y)
-{
-    long n = RARRAY_LEN(y);
-    if (n > 0) {
-	rb_ary_splice(x, RARRAY_LEN(x), 0, RARRAY_CONST_PTR(y), n);
-    }
-    return x;
-}
-
 /*
  *  call-seq:
- *     ary.concat(other_ary1, other_ary2,...)   -> ary
+ *     ary.concat(other_ary)   -> ary
  *
- *  Appends the elements of +other_ary+s to +self+.
+ *  Appends the elements of +other_ary+ to +self+.
  *
  *     [ "a", "b" ].concat( ["c", "d"] ) #=> [ "a", "b", "c", "d" ]
- *     [ "a" ].concat( ["b"], ["c", "d"] ) #=> [ "a", "b", "c", "d" ]
- *     [ "a" ].concat #=> [ "a" ]
- *
  *     a = [ 1, 2, 3 ]
  *     a.concat( [ 4, 5 ] )
  *     a                                 #=> [ 1, 2, 3, 4, 5 ]
  *
- *     a = [ 1, 2 ]
- *     a.concat(a, a)                    #=> [1, 2, 1, 2, 1, 2]
- *
  *  See also Array#+.
  */
 
-static VALUE
-rb_ary_concat_multi(int argc, VALUE *argv, VALUE ary)
-{
-    rb_ary_modify_check(ary);
-
-    if (argc == 1) {
-	rb_ary_concat(ary, argv[0]);
-    }
-    else if (argc > 1) {
-	int i;
-	VALUE args = rb_ary_tmp_new(argc);
-	for (i = 0; i < argc; i++) {
-	    rb_ary_concat(args, argv[i]);
-	}
-	ary_append(ary, args);
-    }
-
-    return ary;
-}
-
 VALUE
 rb_ary_concat(VALUE x, VALUE y)
 {
-    return ary_append(x, to_ary(y));
+    rb_ary_modify_check(x);
+    y = to_ary(y);
+    if (RARRAY_LEN(y) > 0) {
+	rb_ary_splice(x, RARRAY_LEN(x), 0, y);
+    }
+    return x;
 }
 
+
 /*
  *  call-seq:
  *     ary * int     -> new_ary
@@ -3779,7 +3614,7 @@ rb_ary_times(VALUE ary, VALUE times)
 
 /*
  *  call-seq:
- *     ary.assoc(obj)   -> element_ary  or  nil
+ *     ary.assoc(obj)   -> new_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>.
@@ -3814,7 +3649,7 @@ rb_ary_assoc(VALUE ary, VALUE key)
 
 /*
  *  call-seq:
- *     ary.rassoc(obj) -> element_ary or nil
+ *     ary.rassoc(obj) -> new_ary or nil
  *
  *  Searches through the array whose elements are also arrays.
  *
@@ -3898,7 +3733,7 @@ rb_ary_equal(VALUE ary1, VALUE ary2)
 {
     if (ary1 == ary2) return Qtrue;
     if (!RB_TYPE_P(ary2, T_ARRAY)) {
-	if (!rb_respond_to(ary2, idTo_ary)) {
+	if (!rb_respond_to(ary2, rb_intern("to_ary"))) {
 	    return Qfalse;
 	}
 	return rb_equal(ary2, ary1);
@@ -3939,33 +3774,41 @@ rb_ary_eql(VALUE ary1, VALUE ary2)
     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_AREF(ary, i));
+	    h = rb_hash_uint(h, NUM2LONG(n));
+	}
+    }
+    h = rb_hash_end(h);
+    return LONG2FIX(h);
+}
+
 /*
  *  call-seq:
- *     ary.hash   -> integer
+ *     ary.hash   -> fixnum
  *
  *  Compute a hash-code for this array.
  *
  *  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)
 {
-    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 ST2FIX(h);
+    return rb_exec_recursive_outer(recursive_hash, ary, 0);
 }
 
 /*
@@ -3984,31 +3827,15 @@ VALUE
 rb_ary_includes(VALUE ary, VALUE item)
 {
     long i;
-    VALUE e;
 
     for (i=0; i<RARRAY_LEN(ary); i++) {
-	e = RARRAY_AREF(ary, i);
-	if (rb_equal(e, item)) {
+	if (rb_equal(RARRAY_AREF(ary, i), item)) {
 	    return Qtrue;
 	}
     }
     return Qfalse;
 }
 
-static VALUE
-rb_ary_includes_by_eql(VALUE ary, VALUE item)
-{
-    long i;
-    VALUE e;
-
-    for (i=0; i<RARRAY_LEN(ary); i++) {
-	e = RARRAY_AREF(ary, i);
-	if (rb_eql(item, e)) {
-	    return Qtrue;
-	}
-    }
-    return Qfalse;
-}
 
 static VALUE
 recursive_cmp(VALUE ary1, VALUE ary2, int recur)
@@ -4037,26 +3864,21 @@ 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 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.
+ *  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.
  *
- *  If all the elements are equal, then the result is based on a comparison of
+ *  If all the values are equal, then the return 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
  *
  */
 
@@ -4083,17 +3905,15 @@ ary_add_hash(VALUE hash, VALUE ary)
     long i;
 
     for (i=0; i<RARRAY_LEN(ary); i++) {
-	VALUE elt = RARRAY_AREF(ary, i);
-	rb_hash_add_new_element(hash, elt, elt);
+	rb_hash_aset(hash, RARRAY_AREF(ary, i), Qtrue);
     }
     return hash;
 }
 
 static inline VALUE
-ary_tmp_hash_new(VALUE ary)
+ary_tmp_hash_new(void)
 {
-    long size = RARRAY_LEN(ary);
-    VALUE hash = rb_hash_new_with_size(size);
+    VALUE hash = rb_hash_new();
 
     RBASIC_CLEAR_CLASS(hash);
     return hash;
@@ -4102,7 +3922,7 @@ ary_tmp_hash_new(VALUE ary)
 static VALUE
 ary_make_hash(VALUE ary)
 {
-    VALUE hash = ary_tmp_hash_new(ary);
+    VALUE hash = ary_tmp_hash_new();
     return ary_add_hash(hash, ary);
 }
 
@@ -4113,7 +3933,9 @@ ary_add_hash_by(VALUE hash, VALUE ary)
 
     for (i = 0; i < RARRAY_LEN(ary); ++i) {
 	VALUE v = rb_ary_elt(ary, i), k = rb_yield(v);
-	rb_hash_add_new_element(hash, k, v);
+	if (rb_hash_lookup2(hash, k, Qundef) == Qundef) {
+	    rb_hash_aset(hash, k, v);
+	}
     }
     return hash;
 }
@@ -4121,19 +3943,18 @@ ary_add_hash_by(VALUE hash, VALUE ary)
 static VALUE
 ary_make_hash_by(VALUE ary)
 {
-    VALUE hash = ary_tmp_hash_new(ary);
+    VALUE hash = ary_tmp_hash_new();
     return ary_add_hash_by(hash, ary);
 }
 
 static inline void
 ary_recycle_hash(VALUE hash)
 {
-    assert(RBASIC_CLASS(hash) == 0);
     if (RHASH(hash)->ntbl) {
 	st_table *tbl = RHASH(hash)->ntbl;
+	RHASH(hash)->ntbl = 0;
 	st_free_table(tbl);
     }
-    rb_gc_force_recycle(hash);
 }
 
 /*
@@ -4157,22 +3978,12 @@ static VALUE
 rb_ary_diff(VALUE ary1, VALUE ary2)
 {
     VALUE ary3;
-    VALUE hash;
+    volatile VALUE hash;
     long i;
 
-    ary2 = to_ary(ary2);
+    hash = ary_make_hash(to_ary(ary2));
     ary3 = rb_ary_new();
 
-    if (RARRAY_LEN(ary1) <= SMALL_ARRAY_LEN || RARRAY_LEN(ary2) <= SMALL_ARRAY_LEN) {
-	for (i=0; i<RARRAY_LEN(ary1); i++) {
-	    VALUE elt = rb_ary_elt(ary1, i);
-	    if (rb_ary_includes_by_eql(ary2, elt)) continue;
-	    rb_ary_push(ary3, elt);
-	}
-	return ary3;
-    }
-
-    hash = ary_make_hash(ary2);
     for (i=0; i<RARRAY_LEN(ary1); i++) {
 	if (st_lookup(rb_hash_tbl_raw(hash), RARRAY_AREF(ary1, i), 0)) continue;
 	rb_ary_push(ary3, rb_ary_elt(ary1, i));
@@ -4185,12 +3996,13 @@ rb_ary_diff(VALUE ary1, VALUE ary2)
  *  call-seq:
  *     ary & other_ary      -> new_ary
  *
- *  Set Intersection --- Returns a new array containing unique elements common to the
- *  two arrays. The order is preserved from the original array.
+ *  Set Intersection --- Returns a new array containing elements common to the
+ *  two arrays, excluding any duplicates. The order is preserved from the
+ *  original array.
  *
  *  It compares elements using their #hash and #eql? methods for efficiency.
  *
- *     [ 1, 1, 3, 5 ] & [ 3, 2, 1 ]                 #=> [ 1, 3 ]
+ *     [ 1, 1, 3, 5 ] & [ 1, 2, 3 ]                 #=> [ 1, 3 ]
  *     [ 'a', 'b', 'b', 'z' ] & [ 'a', 'b', 'c' ]   #=> [ 'a', 'b' ]
  *
  *  See also Array#uniq.
@@ -4208,17 +4020,6 @@ rb_ary_and(VALUE ary1, VALUE ary2)
     ary2 = to_ary(ary2);
     ary3 = rb_ary_new();
     if (RARRAY_LEN(ary2) == 0) return ary3;
-
-    if (RARRAY_LEN(ary1) <= SMALL_ARRAY_LEN && RARRAY_LEN(ary2) <= SMALL_ARRAY_LEN) {
-	for (i=0; i<RARRAY_LEN(ary1); i++) {
-	    v = RARRAY_AREF(ary1, i);
-	    if (!rb_ary_includes_by_eql(ary2, v)) continue;
-	    if (rb_ary_includes_by_eql(ary3, v)) continue;
-	    rb_ary_push(ary3, v);
-	}
-	return ary3;
-    }
-
     hash = ary_make_hash(ary2);
     table = rb_hash_tbl_raw(hash);
 
@@ -4234,25 +4035,16 @@ 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
  *
  *  Set Union --- Returns a new array by joining +ary+ with +other_ary+,
- *  excluding any duplicates and preserving the order from the given arrays.
+ *  excluding any duplicates and preserving the order from the original array.
  *
  *  It compares elements using their #hash and #eql? methods for efficiency.
  *
  *     [ "a", "b", "c" ] | [ "c", "d", "a" ]    #=> [ "a", "b", "c", "d" ]
- *     [ "c", "d", "a" ] | [ "a", "b", "c" ]    #=> [ "c", "d", "a", "b" ]
  *
  *  See also Array#uniq.
  */
@@ -4261,144 +4053,19 @@ static VALUE
 rb_ary_or(VALUE ary1, VALUE ary2)
 {
     VALUE hash, ary3;
-    long i;
 
     ary2 = to_ary(ary2);
-    if (RARRAY_LEN(ary1) + RARRAY_LEN(ary2) <= SMALL_ARRAY_LEN) {
-	ary3 = rb_ary_new();
-	for (i=0; i<RARRAY_LEN(ary1); i++) {
-	    VALUE elt = rb_ary_elt(ary1, i);
-	    if (rb_ary_includes_by_eql(ary3, elt)) continue;
-	    rb_ary_push(ary3, elt);
-	}
-	for (i=0; i<RARRAY_LEN(ary2); i++) {
-	    VALUE elt = rb_ary_elt(ary2, i);
-	    if (rb_ary_includes_by_eql(ary3, elt)) continue;
-	    rb_ary_push(ary3, elt);
-	}
-	return ary3;
-    }
-
-    hash = ary_make_hash(ary1);
-    for (i=0; i<RARRAY_LEN(ary2); i++) {
-	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);
+    hash = ary_add_hash(ary_make_hash(ary1), ary2);
+    ary3 = rb_hash_keys(hash);
     ary_recycle_hash(hash);
     return ary3;
 }
 
-/*
- *  call-seq:
- *     ary.max                     -> obj
- *     ary.max { |a, b| block }    -> obj
- *     ary.max(n)                  -> array
- *     ary.max(n) { |a, b| block } -> array
- *
- *  Returns the object in _ary_ with the maximum value. The
- *  first form assumes all objects implement <code>Comparable</code>;
- *  the second uses the block to return <em>a <=> b</em>.
- *
- *     ary = %w(albatross dog horse)
- *     ary.max                                   #=> "horse"
- *     ary.max { |a, b| a.length <=> b.length }  #=> "albatross"
- *
- *  If the +n+ argument is given, maximum +n+ elements are returned
- *  as an array.
- *
- *     ary = %w[albatross dog horse]
- *     ary.max(2)                                  #=> ["horse", "dog"]
- *     ary.max(2) {|a, b| a.length <=> b.length }  #=> ["albatross", "horse"]
- */
-static VALUE
-rb_ary_max(int argc, VALUE *argv, VALUE ary)
-{
-    struct cmp_opt_data cmp_opt = { 0, 0 };
-    VALUE result = Qundef, v;
-    VALUE num;
-    long i;
-
-    rb_scan_args(argc, argv, "01", &num);
-
-    if (!NIL_P(num))
-       return rb_nmin_run(ary, num, 0, 1, 1);
-
-    if (rb_block_given_p()) {
-	for (i = 0; i < RARRAY_LEN(ary); i++) {
-	   v = RARRAY_AREF(ary, i);
-	   if (result == Qundef || rb_cmpint(rb_yield_values(2, v, result), v, result) > 0) {
-	       result = v;
-	   }
-	}
-    }
-    else {
-	for (i = 0; i < RARRAY_LEN(ary); i++) {
-	   v = RARRAY_AREF(ary, i);
-	   if (result == Qundef || OPTIMIZED_CMP(v, result, cmp_opt) > 0) {
-	       result = v;
-	   }
-	}
-    }
-    if (result == Qundef) return Qnil;
-    return result;
-}
-
-/*
- *  call-seq:
- *     ary.min                     -> obj
- *     ary.min {| a,b | block }    -> obj
- *     ary.min(n)                  -> array
- *     ary.min(n) {| a,b | block } -> array
- *
- *  Returns the object in _ary_ with the minimum value. The
- *  first form assumes all objects implement <code>Comparable</code>;
- *  the second uses the block to return <em>a <=> b</em>.
- *
- *     ary = %w(albatross dog horse)
- *     ary.min                                   #=> "albatross"
- *     ary.min { |a, b| a.length <=> b.length }  #=> "dog"
- *
- *  If the +n+ argument is given, minimum +n+ elements are returned
- *  as an array.
- *
- *     ary = %w[albatross dog horse]
- *     ary.min(2)                                  #=> ["albatross", "dog"]
- *     ary.min(2) {|a, b| a.length <=> b.length }  #=> ["dog", "horse"]
- */
-static VALUE
-rb_ary_min(int argc, VALUE *argv, VALUE ary)
+static int
+push_key(st_data_t key, st_data_t val, st_data_t ary)
 {
-    struct cmp_opt_data cmp_opt = { 0, 0 };
-    VALUE result = Qundef, v;
-    VALUE num;
-    long i;
-
-    rb_scan_args(argc, argv, "01", &num);
-
-    if (!NIL_P(num))
-       return rb_nmin_run(ary, num, 0, 0, 1);
-
-    if (rb_block_given_p()) {
-	for (i = 0; i < RARRAY_LEN(ary); i++) {
-	   v = RARRAY_AREF(ary, i);
-	   if (result == Qundef || rb_cmpint(rb_yield_values(2, v, result), v, result) < 0) {
-	       result = v;
-	   }
-	}
-    }
-    else {
-	for (i = 0; i < RARRAY_LEN(ary); i++) {
-	   v = RARRAY_AREF(ary, i);
-	   if (result == Qundef || OPTIMIZED_CMP(v, result, cmp_opt) < 0) {
-	       result = v;
-	   }
-	}
-    }
-    if (result == Qundef) return Qnil;
-    return result;
+    rb_ary_push((VALUE)ary, (VALUE)key);
+    return ST_CONTINUE;
 }
 
 static int
@@ -4420,8 +4087,6 @@ 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" ]
@@ -4444,23 +4109,36 @@ rb_ary_uniq_bang(VALUE ary)
     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);
-    else
-	hash = ary_make_hash(ary);
-
-    hash_size = RHASH_SIZE(hash);
-    if (RARRAY_LEN(ary) == hash_size) {
-	return Qnil;
+	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);
     }
-    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);
+    else {
+	hash = ary_make_hash(ary);
+	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_key, ary);
     }
-    ary_resize_capa(ary, hash_size);
-    st_foreach(rb_hash_tbl_raw(hash), push_value, ary);
     ary_recycle_hash(hash);
 
     return ary;
@@ -4477,8 +4155,6 @@ 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"]
  *
@@ -4500,7 +4176,7 @@ rb_ary_uniq(VALUE ary)
     }
     else {
 	hash = ary_make_hash(ary);
-	uniq = rb_hash_values(hash);
+	uniq = rb_hash_keys(hash);
     }
     RBASIC_SET_CLASS(uniq, rb_obj_class(ary));
     ary_recycle_hash(hash);
@@ -4630,15 +4306,11 @@ flatten(VALUE ary, int level, int *modified)
     while (1) {
 	while (i < RARRAY_LEN(ary)) {
 	    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)) {
+	    if (NIL_P(tmp) || (level >= 0 && RARRAY_LEN(stack) / 2 >= level)) {
 		rb_ary_push(result, elt);
 	    }
 	    else {
@@ -4667,7 +4339,7 @@ flatten(VALUE ary, int level, int *modified)
 
     st_free_table(memo);
 
-    RBASIC_SET_CLASS(result, rb_obj_class(ary));
+    RBASIC_SET_CLASS(result, rb_class_of(ary));
     return result;
 }
 
@@ -4754,7 +4426,7 @@ 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 ID id_random;
+static VALUE sym_random;
 
 #define RAND_UPTO(max) (long)rb_random_ulong_limited((randgen), (max)-1)
 
@@ -4765,13 +4437,7 @@ static ID id_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
@@ -4781,14 +4447,7 @@ rb_ary_shuffle_bang(int argc, VALUE *argv, VALUE ary)
     long i, len;
 
     if (OPTHASH_GIVEN_P(opts)) {
-	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;
-	}
+	randgen = rb_hash_lookup2(opts, sym_random, randgen);
     }
     rb_check_arity(argc, 0, 0);
     rb_ary_modify(ary);
@@ -4818,7 +4477,6 @@ 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.
  *
@@ -4865,17 +4523,9 @@ rb_ary_sample(int argc, VALUE *argv, VALUE ary)
     VALUE opts, randgen = rb_cRandom;
     long n, len, i, j, k, idx[10];
     long rnds[numberof(idx)];
-    long memo_threshold;
 
     if (OPTHASH_GIVEN_P(opts)) {
-	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;
-	}
+	randgen = rb_hash_lookup2(opts, sym_random, randgen);
     }
     len = RARRAY_LEN(ary);
     if (argc == 0) {
@@ -4925,11 +4575,6 @@ rb_ary_sample(int argc, VALUE *argv, VALUE ary)
 	}
 	return rb_ary_new_from_args(3, RARRAY_AREF(ary, i), RARRAY_AREF(ary, j), RARRAY_AREF(ary, k));
     }
-    memo_threshold =
-	len < 2560 ? len / 128 :
-	len < 5120 ? len / 64 :
-	len < 10240 ? len / 32 :
-	len / 16;
     if (n <= numberof(idx)) {
 	long sorted[numberof(idx)];
 	sorted[0] = idx[0] = rnds[0];
@@ -4949,38 +4594,6 @@ rb_ary_sample(int argc, VALUE *argv, VALUE ary)
 	    }
 	});
     }
-    else if (n <= memo_threshold / 2) {
-	long max_idx = 0;
-#undef RUBY_UNTYPED_DATA_WARNING
-#define RUBY_UNTYPED_DATA_WARNING 0
-	VALUE vmemo = Data_Wrap_Struct(0, 0, st_free_table, 0);
-	st_table *memo = st_init_numtable_with_size(n);
-	DATA_PTR(vmemo) = memo;
-	result = rb_ary_new_capa(n);
-	RARRAY_PTR_USE(result, ptr_result, {
-	    for (i=0; i<n; i++) {
-		long r = RAND_UPTO(len-i) + i;
-		ptr_result[i] = r;
-		if (r > max_idx) max_idx = r;
-	    }
-	    len = RARRAY_LEN(ary);
-	    if (len <= max_idx) n = 0;
-	    else if (n > len) n = len;
-	    RARRAY_PTR_USE(ary, ptr_ary, {
-		for (i=0; i<n; i++) {
-		    long j2 = j = ptr_result[i];
-		    long i2 = i;
-		    st_data_t value;
-		    if (st_lookup(memo, (st_data_t)i, &value)) i2 = (long)value;
-		    if (st_lookup(memo, (st_data_t)j, &value)) j2 = (long)value;
-		    st_insert(memo, (st_data_t)j, (st_data_t)i2);
-		    ptr_result[i] = ptr_ary[j2];
-		}
-	    });
-	});
-	DATA_PTR(vmemo) = 0;
-	st_free_table(memo);
-    }
     else {
 	result = rb_ary_dup(ary);
 	RBASIC_CLEAR_CLASS(result);
@@ -5013,7 +4626,7 @@ rb_ary_cycle_size(VALUE self, VALUE args, VALUE eobj)
     mul = NUM2LONG(n);
     if (mul <= 0) return INT2FIX(0);
     n = LONG2FIX(mul);
-    return rb_fix_mul_fix(rb_ary_length(self), n);
+    return rb_funcallv(rb_ary_length(self), '*', 1, &n);
 }
 
 /*
@@ -5067,67 +4680,47 @@ rb_ary_cycle(int argc, VALUE *argv, VALUE ary)
 #define tmpary_discard(a) (ary_discard(a), RBASIC_SET_CLASS_RAW(a, rb_cArray))
 
 /*
- * 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>.
+ * Recursively compute permutations of +r+ elements of the set
+ * <code>[0..n-1]</code>.
  *
- * When we have a complete permutation of array indices, copy the values
- * at those indices into a new array and yield that array.
+ * When we have a complete permutation of array indexes, copy the values
+ * at those indexes into a new array and yield that array.
  *
  * 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(const long n, const long r, long *const p, char *const used, const VALUE values)
+permute0(long n, long r, long *p, long index, char *used, VALUE values)
 {
-    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;
+    long i,j;
+    for (i = 0; i < n; i++) {
+	if (used[i] == 0) {
 	    p[index] = i;
-	    used[i] = 1;                   /* mark index used */
-	    ++index;
 	    if (index < r-1) {             /* if not done yet */
-		p[index] = i = 0;
-		continue;
+		used[i] = 1;               /* mark index used */
+		permute0(n, r, p, index+1, /* recurse */
+			 used, values);
+		used[i] = 0;               /* index unused */
 	    }
-	    for (i = 0; i < n; ++i) {
-		if (used[i]) continue;
-		p[index] = i;
-		if (!yield_indexed_values(values, r, p)) {
+	    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) {
 		    rb_raise(rb_eRuntimeError, "permute reentered");
 		}
 	    }
-	    i = p[--index];                /* pop index */
-	    used[i] = 0;                   /* index unused */
-	    p[index] = ++i;
 	}
     }
 }
@@ -5139,16 +4732,10 @@ permute0(const long n, const long r, long *const p, char *const used, const VALU
 static VALUE
 descending_factorial(long from, long how_many)
 {
-    VALUE cnt;
-    if (how_many > 0) {
-	cnt = LONG2FIX(from);
-	while (--how_many > 0) {
-	    long v = --from;
-	    cnt = rb_int_mul(cnt, LONG2FIX(v));
-	}
-    }
-    else {
-	cnt = LONG2FIX(how_many == 0);
+    VALUE cnt = LONG2FIX(how_many >= 0);
+    while (how_many-- > 0) {
+	VALUE v = LONG2FIX(from--);
+	cnt = rb_funcallv(cnt, '*', 1, &v);
     }
     return cnt;
 }
@@ -5156,23 +4743,16 @@ descending_factorial(long from, long how_many)
 static VALUE
 binomial_coefficient(long comb, long size)
 {
-    VALUE r;
-    long i;
+    VALUE r, v;
     if (comb > size-comb) {
 	comb = size-comb;
     }
     if (comb < 0) {
 	return LONG2FIX(0);
     }
-    else if (comb == 0) {
-	return LONG2FIX(1);
-    }
-    r = LONG2FIX(size);
-    for (i = 1; i < comb; ++i) {
-	r = rb_int_mul(r, LONG2FIX(size - i));
-	r = rb_int_idiv(r, LONG2FIX(i + 1));
-    }
-    return r;
+    r = descending_factorial(size, comb);
+    v = descending_factorial(comb, comb);
+    return rb_funcallv(r, id_div, 1, &v);
 }
 
 static VALUE
@@ -5235,42 +4815,23 @@ rb_ary_permutation(int argc, VALUE *argv, VALUE ary)
 	}
     }
     else {             /* this is the general case */
-	volatile VALUE t0;
-	long *p = ALLOCV_N(long, t0, r+roomof(n, sizeof(long)));
-	char *used = (char*)(p + r);
+	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);
 	VALUE ary0 = ary_make_shared_copy(ary); /* private defensive copy of ary */
 	RBASIC_CLEAR_CLASS(ary0);
 
 	MEMZERO(used, char, n); /* initialize array */
 
-	permute0(n, r, p, used, ary0); /* compute and yield permutations */
-	ALLOCV_END(t0);
+	permute0(n, r, p, 0, used, ary0); /* compute and yield permutations */
+	tmpbuf_discard(t0);
+	tmpbuf_discard(t1);
 	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, VALUE eobj)
 {
@@ -5308,7 +4869,7 @@ rb_ary_combination_size(VALUE ary, VALUE args, VALUE eobj)
 static VALUE
 rb_ary_combination(VALUE ary, VALUE num)
 {
-    long i, n, len;
+    long n, i, len;
 
     n = NUM2LONG(num);
     RETURN_SIZED_ENUMERATOR(ary, 1, &num, rb_ary_combination_size);
@@ -5320,55 +4881,77 @@ rb_ary_combination(VALUE ary, VALUE num)
 	rb_yield(rb_ary_new2(0));
     }
     else if (n == 1) {
-	for (i = 0; i < RARRAY_LEN(ary); i++) {
+	for (i = 0; i < len; i++) {
 	    rb_yield(rb_ary_new3(1, RARRAY_AREF(ary, i)));
 	}
     }
     else {
-	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);
+	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_AREF(ary, stack[lev+1]);
+	    for (lev++; lev < n; lev++) {
+		chosen[lev] = RARRAY_AREF(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);
     }
     return ary;
 }
 
 /*
- * Compute repeated permutations of +r+ elements of the set
+ * Recursively compute repeated permutations of +r+ elements of the set
  * <code>[0..n-1]</code>.
  *
- * When we have a complete repeated permutation of array indices, copy the
- * values at those indices into a new array and yield that array.
+ * When we have a complete repeated permutation of array indexes, copy the
+ * values at those indexes into a new array and yield that array.
  *
  * 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(const long n, const long r, long *const p, const VALUE values)
+rpermute0(long n, long r, long *p, long index, VALUE values)
 {
-    long i = 0, index = 0;
-
-    p[index] = i;
-    for (;;) {
-	if (++index < r-1) {
-	    p[index] = i = 0;
-	    continue;
+    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 */
 	}
-	for (i = 0; i < n; ++i) {
-	    p[index] = i;
-	    if (!yield_indexed_values(values, r, p)) {
+	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) {
 		rb_raise(rb_eRuntimeError, "repeated permute reentered");
 	    }
 	}
-	do {
-	    if (index <= 0) return;
-	} while ((i = ++p[--index]) >= n);
     }
 }
 
@@ -5377,14 +4960,14 @@ rb_ary_repeated_permutation_size(VALUE ary, VALUE args, VALUE eobj)
 {
     long n = RARRAY_LEN(ary);
     long k = NUM2LONG(RARRAY_AREF(args, 0));
+    VALUE v;
 
     if (k < 0) {
 	return LONG2FIX(0);
     }
-    if (n <= 0) {
-	return LONG2FIX(!k);
-    }
-    return rb_int_positive_pow(n, (unsigned long)k);
+
+    v = LONG2NUM(k);
+    return rb_funcallv(LONG2NUM(n), id_power, 1, &v);
 }
 
 /*
@@ -5431,38 +5014,39 @@ rb_ary_repeated_permutation(VALUE ary, VALUE num)
 	}
     }
     else {             /* this is the general case */
-	volatile VALUE t0;
-	long *p = ALLOCV_N(long, t0, r);
+	volatile VALUE t0 = tmpbuf(r, sizeof(long));
+	long *p = (long*)RSTRING_PTR(t0);
 	VALUE ary0 = ary_make_shared_copy(ary); /* private defensive copy of ary */
 	RBASIC_CLEAR_CLASS(ary0);
 
-	rpermute0(n, r, p, ary0); /* compute and yield repeated permutations */
-	ALLOCV_END(t0);
+	rpermute0(n, r, p, 0, ary0); /* compute and yield repeated permutations */
+	tmpbuf_discard(t0);
 	RBASIC_SET_CLASS_RAW(ary0, rb_cArray);
     }
     return ary;
 }
 
 static void
-rcombinate0(const long n, const long r, long *const p, const long rest, const VALUE values)
+rcombinate0(long n, long r, long *p, long index, long rest, VALUE values)
 {
-    long i = 0, index = 0;
-
-    p[index] = i;
-    for (;;) {
-	if (++index < r-1) {
-	    p[index] = i;
-	    continue;
+    long j;
+    if (rest > 0) {
+	for (; index < n; ++index) {
+	    p[r-rest] = index;
+	    rcombinate0(n, r, p, index, rest-1, values);
 	}
-	for (; i < n; ++i) {
-	    p[index] = i;
-	    if (!yield_indexed_values(values, r, p)) {
-		rb_raise(rb_eRuntimeError, "repeated combination reentered");
-	    }
+    }
+    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");
 	}
-	do {
-	    if (index <= 0) return;
-	} while ((i = ++p[--index]) >= n);
     }
 }
 
@@ -5519,7 +5103,7 @@ rb_ary_repeated_combination(VALUE ary, VALUE num)
 	rb_yield(rb_ary_new2(0));
     }
     else if (n == 1) {
-	for (i = 0; i < RARRAY_LEN(ary); i++) {
+	for (i = 0; i < len; i++) {
 	    rb_yield(rb_ary_new3(1, RARRAY_AREF(ary, i)));
 	}
     }
@@ -5527,13 +5111,13 @@ rb_ary_repeated_combination(VALUE ary, VALUE num)
 	/* yield nothing */
     }
     else {
-	volatile VALUE t0;
-	long *p = ALLOCV_N(long, t0, n);
+	volatile VALUE t0 = tmpbuf(n, sizeof(long));
+	long *p = (long*)RSTRING_PTR(t0);
 	VALUE ary0 = ary_make_shared_copy(ary); /* private defensive copy of ary */
 	RBASIC_CLEAR_CLASS(ary0);
 
-	rcombinate0(len, n, p, n, ary0); /* compute and yield repeated combinations */
-	ALLOCV_END(t0);
+	rcombinate0(len, n, p, 0, n, ary0); /* compute and yield repeated combinations */
+	tmpbuf_discard(t0);
 	RBASIC_SET_CLASS_RAW(ary0, rb_cArray);
     }
     return ary;
@@ -5676,7 +5260,7 @@ rb_ary_take(VALUE obj, VALUE n)
 
 /*
  *  call-seq:
- *     ary.take_while { |obj| block }  -> new_ary
+ *     ary.take_while { |arr| block }  -> new_ary
  *     ary.take_while                  -> Enumerator
  *
  *  Passes elements to the block until the block returns +nil+ or +false+, then
@@ -5735,7 +5319,7 @@ rb_ary_drop(VALUE ary, VALUE n)
 
 /*
  *  call-seq:
- *     ary.drop_while { |obj| block }   -> new_ary
+ *     ary.drop_while { |arr| block }   -> new_ary
  *     ary.drop_while                  -> Enumerator
  *
  *  Drops elements up to, but not including, the first element for which the
@@ -5764,222 +5348,6 @@ rb_ary_drop_while(VALUE ary)
 }
 
 /*
- *  call-seq:
- *     ary.any? [{ |obj| block }]   -> true or false
- *
- *  See also Enumerable#any?
- */
-
-static VALUE
-rb_ary_any_p(int argc, VALUE *argv, VALUE ary)
-{
-    long i, len = RARRAY_LEN(ary);
-    const VALUE *ptr = RARRAY_CONST_PTR(ary);
-
-    rb_check_arity(argc, 0, 1);
-    if (!len) return Qfalse;
-    if (argc) {
-	for (i = 0; i < RARRAY_LEN(ary); ++i) {
-	    if (RTEST(rb_funcall(argv[0], idEqq, 1, RARRAY_AREF(ary, i)))) return Qtrue;
-	}
-    }
-    else 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)                    #=> TypeError: Integer does not have #dig method
- *   [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);
-}
-
-static inline VALUE
-finish_exact_sum(long n, VALUE r, VALUE v, int z)
-{
-    if (n != 0)
-        v = rb_fix_plus(LONG2FIX(n), v);
-    if (r != Qundef) {
-	/* r can be an Integer when mathn is loaded */
-	if (FIXNUM_P(r))
-	    v = rb_fix_plus(r, v);
-	else if (RB_TYPE_P(r, T_BIGNUM))
-	    v = rb_big_plus(r, v);
-	else
-	    v = rb_rational_plus(r, v);
-    }
-    else if (!n && z) {
-        v = rb_fix_plus(LONG2FIX(0), v);
-    }
-    return v;
-}
-
-/*
- * call-seq:
- *   ary.sum(init=0)                    -> number
- *   ary.sum(init=0) {|e| expr }        -> number
- *
- * Returns the sum of elements.
- * For example, [e1, e2, e3].sum returns init + e1 + e2 + e3.
- *
- * If a block is given, the block is applied to each element
- * before addition.
- *
- * If <i>ary</i> is empty, it returns <i>init</i>.
- *
- *   [].sum                             #=> 0
- *   [].sum(0.0)                        #=> 0.0
- *   [1, 2, 3].sum                      #=> 6
- *   [3, 5.5].sum                       #=> 8.5
- *   [2.5, 3.0].sum(0.0) {|e| e * e }   #=> 15.25
- *   [Object.new].sum                   #=> TypeError
- *
- * The (arithmetic) mean value of an array can be obtained as follows.
- *
- *   mean = ary.sum(0.0) / ary.length
- *
- * This method can be used for non-numeric objects by
- * explicit <i>init</i> argument.
- *
- *   ["a", "b", "c"].sum("")            #=> "abc"
- *   [[1], [[2]], [3]].sum([])          #=> [1, [2], 3]
- *
- * However, Array#join and Array#flatten is faster than Array#sum for
- * array of strings and array of arrays.
- *
- *   ["a", "b", "c"].join               #=> "abc"
- *   [[1], [[2]], [3]].flatten(1)       #=> [1, [2], 3]
- *
- *
- * Array#sum method may not respect method redefinition of "+" methods
- * such as Integer#+.
- *
- */
-
-static VALUE
-rb_ary_sum(int argc, VALUE *argv, VALUE ary)
-{
-    VALUE e, v, r;
-    long i, n;
-    int block_given;
-
-    if (rb_scan_args(argc, argv, "01", &v) == 0)
-        v = LONG2FIX(0);
-
-    block_given = rb_block_given_p();
-
-    if (RARRAY_LEN(ary) == 0)
-        return v;
-
-    n = 0;
-    r = Qundef;
-    for (i = 0; i < RARRAY_LEN(ary); i++) {
-        e = RARRAY_AREF(ary, i);
-        if (block_given)
-            e = rb_yield(e);
-        if (FIXNUM_P(e)) {
-            n += FIX2LONG(e); /* should not overflow long type */
-            if (!FIXABLE(n)) {
-                v = rb_big_plus(LONG2NUM(n), v);
-                n = 0;
-            }
-        }
-        else if (RB_TYPE_P(e, T_BIGNUM))
-            v = rb_big_plus(e, v);
-        else if (RB_TYPE_P(e, T_RATIONAL)) {
-            if (r == Qundef)
-                r = e;
-            else
-                r = rb_rational_plus(r, e);
-        }
-        else
-            goto not_exact;
-    }
-    v = finish_exact_sum(n, r, v, argc!=0);
-    return v;
-
-  not_exact:
-    v = finish_exact_sum(n, r, v, i!=0);
-
-    if (RB_FLOAT_TYPE_P(e)) {
-        /*
-         * Kahan-Babuska balancing compensated summation algorithm
-         * See http://link.springer.com/article/10.1007/s00607-005-0139-x
-         */
-        double f, c;
-
-        f = NUM2DBL(v);
-        c = 0.0;
-        goto has_float_value;
-        for (; i < RARRAY_LEN(ary); i++) {
-            double x, t;
-            e = RARRAY_AREF(ary, i);
-            if (block_given)
-                e = rb_yield(e);
-            if (RB_FLOAT_TYPE_P(e))
-              has_float_value:
-                x = RFLOAT_VALUE(e);
-            else if (FIXNUM_P(e))
-                x = FIX2LONG(e);
-            else if (RB_TYPE_P(e, T_BIGNUM))
-                x = rb_big2dbl(e);
-            else if (RB_TYPE_P(e, T_RATIONAL))
-                x = rb_num2dbl(e);
-            else
-                goto not_float;
-
-            t = f + x;
-            if (fabs(f) >= fabs(x))
-                c += ((f - t) + x);
-            else
-                c += ((x - t) + f);
-            f = t;
-        }
-        f += c;
-        return DBL2NUM(f);
-
-      not_float:
-        v = DBL2NUM(f);
-    }
-
-    goto has_some_value;
-    for (; i < RARRAY_LEN(ary); i++) {
-        e = RARRAY_AREF(ary, i);
-        if (block_given)
-            e = rb_yield(e);
-      has_some_value:
-        v = rb_funcall(v, idPLUS, 1, e);
-    }
-    return v;
-}
-
-/*
  *  Arrays are ordered, integer-indexed collections of any object.
  *
  *  Array indexing starts at 0, as in C or Java.  A negative index is assumed
@@ -6012,8 +5380,7 @@ rb_ary_sum(int argc, VALUE *argv, 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) {|i| i.to_s } #=> ["0", "1", "2", "3"]
+ *     Array.new(4) { Hash.new } #=> [{}, {}, {}, {}]
  *
  *  This is also a quick way to build up multi-dimensional arrays:
  *
@@ -6249,14 +5616,12 @@ Init_Array(void)
     rb_define_method(rb_cArray, "fetch", rb_ary_fetch, -1);
     rb_define_method(rb_cArray, "first", rb_ary_first, -1);
     rb_define_method(rb_cArray, "last", rb_ary_last, -1);
-    rb_define_method(rb_cArray, "concat", rb_ary_concat_multi, -1);
+    rb_define_method(rb_cArray, "concat", rb_ary_concat, 1);
     rb_define_method(rb_cArray, "<<", rb_ary_push, 1);
     rb_define_method(rb_cArray, "push", rb_ary_push_m, -1);
-    rb_define_alias(rb_cArray,  "append", "push");
     rb_define_method(rb_cArray, "pop", rb_ary_pop_m, -1);
     rb_define_method(rb_cArray, "shift", rb_ary_shift_m, -1);
     rb_define_method(rb_cArray, "unshift", rb_ary_unshift_m, -1);
-    rb_define_alias(rb_cArray,  "prepend", "unshift");
     rb_define_method(rb_cArray, "insert", rb_ary_insert, -1);
     rb_define_method(rb_cArray, "each", rb_ary_each, 0);
     rb_define_method(rb_cArray, "each_index", rb_ary_each_index, 0);
@@ -6309,9 +5674,6 @@ Init_Array(void)
     rb_define_method(rb_cArray, "&", rb_ary_and, 1);
     rb_define_method(rb_cArray, "|", rb_ary_or, 1);
 
-    rb_define_method(rb_cArray, "max", rb_ary_max, -1);
-    rb_define_method(rb_cArray, "min", rb_ary_min, -1);
-
     rb_define_method(rb_cArray, "uniq", rb_ary_uniq, 0);
     rb_define_method(rb_cArray, "uniq!", rb_ary_uniq_bang, 0);
     rb_define_method(rb_cArray, "compact", rb_ary_compact, 0);
@@ -6334,10 +5696,9 @@ 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, -1);
-    rb_define_method(rb_cArray, "dig", rb_ary_dig, -1);
-    rb_define_method(rb_cArray, "sum", rb_ary_sum, -1);
 
-    id_random = rb_intern("random");
+    id_cmp = rb_intern("<=>");
+    sym_random = ID2SYM(rb_intern("random"));
+    id_div = rb_intern("div");
+    id_power = rb_intern("**");
 }
diff --git a/basictest/runner.rb b/basictest/runner.rb
deleted file mode 100755
index 0f398e7acc..0000000000
--- a/basictest/runner.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-#! ./miniruby
-
-exit if defined?(CROSS_COMPILING) and CROSS_COMPILING
-ruby = ENV["RUBY"]
-unless ruby
-  load './rbconfig.rb'
-  ruby = "./#{RbConfig::CONFIG['ruby_install_name']}#{RbConfig::CONFIG['EXEEXT']}"
-end
-unless File.exist? ruby
-  print "#{ruby} is not found.\n"
-  print "Try `make' first, then `make test', please.\n"
-  exit false
-end
-ARGV[0] and opt = ARGV[0][/\A--run-opt=(.*)/, 1] and ARGV.shift
-
-$stderr.reopen($stdout)
-error = ''
-
-srcdir = File.expand_path('..', File.dirname(__FILE__))
-if env = ENV["RUBYOPT"]
-  ENV["RUBYOPT"] = env + " -W1"
-end
-`#{ruby} #{opt} -W1 #{srcdir}/basictest/test.rb #{ARGV.join(' ')}`.each_line do |line|
-  if line =~ /^end of test/
-    print "\ntest succeeded\n"
-    exit true
-  end
-  error << line if %r:^(basictest/test.rb|not): =~ line
-end
-puts
-print error
-print "test failed\n"
-exit false
diff --git a/basictest/test.rb b/basictest/test.rb
deleted file mode 100755
index 25d52ca1ef..0000000000
--- a/basictest/test.rb
+++ /dev/null
@@ -1,2367 +0,0 @@
-#! /usr/bin/env ruby
-# -*- coding: us-ascii -*-
-
-$testnum=0
-$ntest=0
-$failed = 0
-class Progress
-  def initialize
-    @color = nil
-    @tty = nil
-    @quiet = nil
-    @verbose = nil
-    ARGV.each do |arg|
-      case arg
-      when /\A--color(?:=(?:always|(auto)|(never)|(.*)))?\z/
-        warn "unknown --color argument: #$3" if $3
-        @color = $1 ? nil : !$2
-      when /\A--tty(=(?:yes|(no)|(.*)))?\z/
-        warn "unknown --tty argument: #$3" if $3
-        @tty = !$1 || !$2
-        true
-      when /\A-(q|-quiet)\z/
-        @quiet = true
-      when /\A-(v|-verbose)\z/
-        @verbose = true
-      end
-    end
-    @tty = STDERR.tty? && !STDOUT.tty? && /dumb/ !~ ENV["TERM"] if @tty.nil?
-    @eol = @tty && !@verbose ? "\r\e[K\r" : "\n"
-    case @color
-    when nil
-      @color = @tty
-    end
-    if @color
-      # dircolors-like style
-      colors = (colors = ENV['TEST_COLORS']) ? Hash[colors.scan(/(\w+)=([^:\n]*)/)] : {}
-      begin
-        File.read(File.join(__dir__, "../test/colors")).scan(/(\w+)=([^:\n]*)/) do |n, c|
-          colors[n] ||= c
-        end
-      rescue
-      end
-      @passed = "\e[;#{colors["pass"] || "32"}m"
-      @failed = "\e[;#{colors["fail"] || "31"}m"
-      @reset = "\e[m"
-    else
-      @passed = @failed = @reset = ""
-    end
-    extend(Rotator) if @tty
-  end
-
-  def passed_string
-    "."
-  end
-  def failed_string
-    "#{@failed}F#{@reset}"
-  end
-  def init_string
-  end
-  def finish_string
-    if @quiet
-      @eol
-    else
-      "#{@passed}#{@ok ? 'OK' : ''} #{$testnum}#{@reset}#{@eol}"
-    end
-  end
-  def pass
-    STDERR.print passed_string
-  end
-  def fail
-    @ok = false
-    STDERR.print failed_string
-  end
-  def init
-    @ok = true
-    STDERR.print init_string
-  end
-  def finish
-    STDERR.print finish_string
-  end
-
-  module Rotator
-    ROTATOR = %w[- \\ | /]
-    BS = "\b" * ROTATOR[0].size
-    def passed_string
-      "#{BS}#{ROTATOR[(@count += 1) % ROTATOR.size]}"
-    end
-    def failed_string
-      "#{BS}#{super}#{ROTATOR[@count % ROTATOR.size]}"
-    end
-    def init_string
-      @count = 0
-      " "
-    end
-    def finish_string
-      s = "#{BS}#{' ' * BS.size}#{BS}#{super}"
-      s.gsub!(/\n/, "\r\e[2K\r") if @quiet
-      s
-    end
-  end
-end
-PROGRESS = Progress.new
-
-def test_check(what)
-  unless $ntest.zero?
-    PROGRESS.finish
-  end
-  STDERR.print "#{$0}:#{what} "
-  PROGRESS.init
-  $what = what
-  $testnum = 0
-end
-
-def test_ok(cond,n=1)
-  $testnum+=1
-  $ntest+=1
-  where = (st = caller(n)) ? st[0] : "caller error! (n=#{n}, trace=#{caller(0).join(', ')}"
-  if cond
-    PROGRESS.pass
-    printf "ok %d (%s)\n", $testnum, where
-  else
-    PROGRESS.fail
-    printf "not ok %s %d -- %s\n", $what, $testnum, where
-    $failed+=1
-  end
-  STDOUT.flush
-  STDERR.flush
-end
-
-# make sure conditional operators work
-
-test_check "assignment"
-
-a=[]; a[0] ||= "bar";
-test_ok(a[0] == "bar")
-h={}; h["foo"] ||= "bar";
-test_ok(h["foo"] == "bar")
-
-aa = 5
-aa ||= 25
-test_ok(aa == 5)
-bb ||= 25
-test_ok(bb == 25)
-cc &&=33
-test_ok(cc == nil)
-cc = 5
-cc &&=44
-test_ok(cc == 44)
-
-a = nil; test_ok(a == nil)
-a = 1; test_ok(a == 1)
-a = []; test_ok(a == [])
-a = [1]; test_ok(a == [1])
-a = [nil]; test_ok(a == [nil])
-a = [[]]; test_ok(a == [[]])
-a = [1,2]; test_ok(a == [1,2])
-a = [*[]]; test_ok(a == [])
-a = [*[1]]; test_ok(a == [1])
-a = [*[1,2]]; test_ok(a == [1,2])
-
-a = *[]; test_ok(a == [])
-a = *[1]; test_ok(a == [1])
-a = *[nil]; test_ok(a == [nil])
-a = *[[]]; test_ok(a == [[]])
-a = *[1,2]; test_ok(a == [1,2])
-a = *[*[]]; test_ok(a == [])
-a = *[*[1]]; test_ok(a == [1])
-a = *[*[1,2]]; test_ok(a == [1,2])
-
-a, = nil; test_ok(a == nil)
-a, = 1; test_ok(a == 1)
-a, = []; test_ok(a == nil)
-a, = [1]; test_ok(a == 1)
-a, = [nil]; test_ok(a == nil)
-a, = [[]]; test_ok(a == [])
-a, = 1,2; test_ok(a == 1)
-a, = [1,2]; test_ok(a == 1)
-a, = [*[]]; test_ok(a == nil)
-a, = [*[1]]; test_ok(a == 1)
-a, = *[1,2]; test_ok(a == 1)
-a, = [*[1,2]]; test_ok(a == 1)
-
-a, = *[]; test_ok(a == nil)
-a, = *[1]; test_ok(a == 1)
-a, = *[nil]; test_ok(a == nil)
-a, = *[[]]; test_ok(a == [])
-a, = *[1,2]; test_ok(a == 1)
-a, = *[*[]]; test_ok(a == nil)
-a, = *[*[1]]; test_ok(a == 1)
-a, = *[*[1,2]]; test_ok(a == 1)
-
-*a = nil; test_ok(a == [nil])
-*a = 1; test_ok(a == [1])
-*a = []; test_ok(a == [])
-*a = [1]; test_ok(a == [1])
-*a = [nil]; test_ok(a == [nil])
-*a = [[]]; test_ok(a == [[]])
-*a = [1,2]; test_ok(a == [1,2])
-*a = [*[]]; test_ok(a == [])
-*a = [*[1]]; test_ok(a == [1])
-*a = [*[1,2]]; test_ok(a == [1,2])
-
-*a = *[]; test_ok(a == [])
-*a = *[1]; test_ok(a == [1])
-*a = *[nil]; test_ok(a == [nil])
-*a = *[[]]; test_ok(a == [[]])
-*a = *[1,2]; test_ok(a == [1,2])
-*a = *[*[]]; test_ok(a == [])
-*a = *[*[1]]; test_ok(a == [1])
-*a = *[*[1,2]]; test_ok(a == [1,2])
-
-a,b,*c = nil; test_ok([a,b,c] == [nil,nil,[]])
-a,b,*c = 1; test_ok([a,b,c] == [1,nil,[]])
-a,b,*c = []; test_ok([a,b,c] == [nil,nil,[]])
-a,b,*c = [1]; test_ok([a,b,c] == [1,nil,[]])
-a,b,*c = [nil]; test_ok([a,b,c] == [nil,nil,[]])
-a,b,*c = [[]]; test_ok([a,b,c] == [[],nil,[]])
-a,b,*c = [1,2]; test_ok([a,b,c] == [1,2,[]])
-a,b,*c = [*[]]; test_ok([a,b,c] == [nil,nil,[]])
-a,b,*c = [*[1]]; test_ok([a,b,c] == [1,nil,[]])
-a,b,*c = [*[1,2]]; test_ok([a,b,c] == [1,2,[]])
-
-a,b,*c = *[]; test_ok([a,b,c] == [nil,nil,[]])
-a,b,*c = *[1]; test_ok([a,b,c] == [1,nil,[]])
-a,b,*c = *[nil]; test_ok([a,b,c] == [nil,nil,[]])
-a,b,*c = *[[]]; test_ok([a,b,c] == [[],nil,[]])
-a,b,*c = *[1,2]; test_ok([a,b,c] == [1,2,[]])
-a,b,*c = *[*[]]; test_ok([a,b,c] == [nil,nil,[]])
-a,b,*c = *[*[1]]; test_ok([a,b,c] == [1,nil,[]])
-a,b,*c = *[*[1,2]]; test_ok([a,b,c] == [1,2,[]])
-
-def f; yield nil; end; f {|a| test_ok(a == nil)}
-def f; yield 1; end; f {|a| test_ok(a == 1)}
-def f; yield []; end; f {|a| test_ok(a == [])}
-def f; yield [1]; end; f {|a| test_ok(a == [1])}
-def f; yield [nil]; end; f {|a| test_ok(a == [nil])}
-def f; yield [[]]; end; f {|a| test_ok(a == [[]])}
-def f; yield [*[]]; end; f {|a| test_ok(a == [])}
-def f; yield [*[1]]; end; f {|a| test_ok(a == [1])}
-def f; yield [*[1,2]]; end; f {|a| test_ok(a == [1,2])}
-def f; yield *[]; end; f {|a| test_ok(a == nil)}
-def f; yield *[1]; end; f {|a| test_ok(a == 1)}
-def f; yield *[nil]; end; f {|a| test_ok(a == nil)}
-def f; yield *[[]]; end; f {|a| test_ok(a == [])}
-def f; yield *[*[]]; end; f {|a| test_ok(a == nil)}
-def f; yield *[*[1]]; end; f {|a| test_ok(a == 1)}
-def f; yield *[*[1,2]]; end; f {|a| test_ok(a == 1)}
-
-def f; yield; end; f {|a,| test_ok(a == nil)}
-def f; yield nil; end; f {|a,| test_ok(a == nil)}
-def f; yield 1; end; f {|a,| test_ok(a == 1)}
-def f; yield []; end; f {|a,| test_ok(a == nil)}
-def f; yield [1]; end; f {|a,| test_ok(a == 1)}
-def f; yield [nil]; end; f {|a,| test_ok(a == nil)}
-def f; yield [[]]; end; f {|a,| test_ok(a == [])}
-def f; yield [*[]]; end; f {|a,| test_ok(a == nil)}
-def f; yield [*[1]]; end; f {|a,| test_ok(a == 1)}
-def f; yield [*[1,2]]; end; f {|a,| test_ok(a == 1)}
-
-def f; yield *[]; end; f {|a,| test_ok(a == nil)}
-def f; yield *[1]; end; f {|a,| test_ok(a == 1)}
-def f; yield *[nil]; end; f {|a,| test_ok(a == nil)}
-def f; yield *[[]]; end; f {|a,| test_ok(a == nil)}
-def f; yield *[*[]]; end; f {|a,| test_ok(a == nil)}
-def f; yield *[*[1]]; end; f {|a,| test_ok(a == 1)}
-def f; yield *[*[1,2]]; end; f {|a,| test_ok(a == 1)}
-
-def f; yield; end; f {|*a| test_ok(a == [])}
-def f; yield nil; end; f {|*a| test_ok(a == [nil])}
-def f; yield 1; end; f {|*a| test_ok(a == [1])}
-def f; yield []; end; f {|*a| test_ok(a == [[]])}
-def f; yield [1]; end; f {|*a| test_ok(a == [[1]])}
-def f; yield [nil]; end; f {|*a| test_ok(a == [[nil]])}
-def f; yield [[]]; end; f {|*a| test_ok(a == [[[]]])}
-def f; yield [1,2]; end; f {|*a| test_ok(a == [[1,2]])}
-def f; yield [*[]]; end; f {|*a| test_ok(a == [[]])}
-def f; yield [*[1]]; end; f {|*a| test_ok(a == [[1]])}
-def f; yield [*[1,2]]; end; f {|*a| test_ok(a == [[1,2]])}
-
-def f; yield *[]; end; f {|*a| test_ok(a == [])}
-def f; yield *[1]; end; f {|*a| test_ok(a == [1])}
-def f; yield *[nil]; end; f {|*a| test_ok(a == [nil])}
-def f; yield *[[]]; end; f {|*a| test_ok(a == [[]])}
-def f; yield *[*[]]; end; f {|*a| test_ok(a == [])}
-def f; yield *[*[1]]; end; f {|*a| test_ok(a == [1])}
-def f; yield *[*[1,2]]; end; f {|*a| test_ok(a == [1,2])}
-
-def f; yield; end; f {|a,b,*c| test_ok([a,b,c] == [nil,nil,[]])}
-def f; yield nil; end; f {|a,b,*c| test_ok([a,b,c] == [nil,nil,[]])}
-def f; yield 1; end; f {|a,b,*c| test_ok([a,b,c] == [1,nil,[]])}
-def f; yield []; end; f {|a,b,*c| test_ok([a,b,c] == [nil,nil,[]])}
-def f; yield [1]; end; f {|a,b,*c| test_ok([a,b,c] == [1,nil,[]])}
-def f; yield [nil]; end; f {|a,b,*c| test_ok([a,b,c] == [nil,nil,[]])}
-def f; yield [[]]; end; f {|a,b,*c| test_ok([a,b,c] == [[],nil,[]])}
-def f; yield [*[]]; end; f {|a,b,*c| test_ok([a,b,c] == [nil,nil,[]])}
-def f; yield [*[1]]; end; f {|a,b,*c| test_ok([a,b,c] == [1,nil,[]])}
-def f; yield [*[1,2]]; end; f {|a,b,*c| test_ok([a,b,c] == [1,2,[]])}
-
-def f; yield *[]; end; f {|a,b,*c| test_ok([a,b,c] == [nil,nil,[]])}
-def f; yield *[1]; end; f {|a,b,*c| test_ok([a,b,c] == [1,nil,[]])}
-def f; yield *[nil]; end; f {|a,b,*c| test_ok([a,b,c] == [nil,nil,[]])}
-def f; yield *[[]]; end; f {|a,b,*c| test_ok([a,b,c] == [nil,nil,[]])}
-def f; yield *[*[]]; end; f {|a,b,*c| test_ok([a,b,c] == [nil,nil,[]])}
-def f; yield *[*[1]]; end; f {|a,b,*c| test_ok([a,b,c] == [1,nil,[]])}
-def f; yield *[*[1,2]]; end; f {|a,b,*c| test_ok([a,b,c] == [1,2,[]])}
-
-def r; return; end; a = r(); test_ok(a == nil)
-def r; return nil; end; a = r(); test_ok(a == nil)
-def r; return 1; end; a = r(); test_ok(a == 1)
-def r; return []; end; a = r(); test_ok(a == [])
-def r; return [1]; end; a = r(); test_ok(a == [1])
-def r; return [nil]; end; a = r(); test_ok(a == [nil])
-def r; return [[]]; end; a = r(); test_ok(a == [[]])
-def r; return [*[]]; end; a = r(); test_ok(a == [])
-def r; return [*[1]]; end; a = r(); test_ok(a == [1])
-def r; return [*[1,2]]; end; a = r(); test_ok(a == [1,2])
-
-def r; return *[]; end; a = r(); test_ok(a == [])
-def r; return *[1]; end; a = r(); test_ok(a == [1])
-def r; return *[nil]; end; a = r(); test_ok(a == [nil])
-def r; return *[[]]; end; a = r(); test_ok(a == [[]])
-def r; return *[*[]]; end; a = r(); test_ok(a == [])
-def r; return *[*[1]]; end; a = r(); test_ok(a == [1])
-def r; return *[*[1,2]]; end; a = r(); test_ok(a == [1,2])
-
-def r; return *[[]]; end; a = *r(); test_ok(a == [[]])
-def r; return *[*[1,2]]; end; a = *r(); test_ok(a == [1,2])
-
-def r; return; end; *a = r(); test_ok(a == [nil])
-def r; return nil; end; *a = r(); test_ok(a == [nil])
-def r; return 1; end; *a = r(); test_ok(a == [1])
-def r; return []; end; *a = r(); test_ok(a == [])
-def r; return [1]; end; *a = r(); test_ok(a == [1])
-def r; return [nil]; end; *a = r(); test_ok(a == [nil])
-def r; return [[]]; end; *a = r(); test_ok(a == [[]])
-def r; return [1,2]; end; *a = r(); test_ok(a == [1,2])
-def r; return [*[]]; end; *a = r(); test_ok(a == [])
-def r; return [*[1]]; end; *a = r(); test_ok(a == [1])
-def r; return [*[1,2]]; end; *a = r(); test_ok(a == [1,2])
-
-def r; return *[]; end; *a = r(); test_ok(a == [])
-def r; return *[1]; end; *a = r(); test_ok(a == [1])
-def r; return *[nil]; end; *a = r(); test_ok(a == [nil])
-def r; return *[[]]; end; *a = r(); test_ok(a == [[]])
-def r; return *[1,2]; end; *a = r(); test_ok(a == [1,2])
-def r; return *[*[]]; end; *a = r(); test_ok(a == [])
-def r; return *[*[1]]; end; *a = r(); test_ok(a == [1])
-def r; return *[*[1,2]]; end; *a = r(); test_ok(a == [1,2])
-
-def r; return *[[]]; end; *a = *r(); test_ok(a == [[]])
-def r; return *[1,2]; end; *a = *r(); test_ok(a == [1,2])
-def r; return *[*[1,2]]; end; *a = *r(); test_ok(a == [1,2])
-
-def r; return; end; a,b,*c = r(); test_ok([a,b,c] == [nil,nil,[]])
-def r; return nil; end; a,b,*c = r(); test_ok([a,b,c] == [nil,nil,[]])
-def r; return 1; end; a,b,*c = r(); test_ok([a,b,c] == [1,nil,[]])
-def r; return []; end; a,b,*c = r(); test_ok([a,b,c] == [nil,nil,[]])
-def r; return [1]; end; a,b,*c = r(); test_ok([a,b,c] == [1,nil,[]])
-def r; return [nil]; end; a,b,*c = r(); test_ok([a,b,c] == [nil,nil,[]])
-def r; return [[]]; end; a,b,*c = r(); test_ok([a,b,c] == [[],nil,[]])
-def r; return [1,2]; end; a,b,*c = r(); test_ok([a,b,c] == [1,2,[]])
-def r; return [*[]]; end; a,b,*c = r(); test_ok([a,b,c] == [nil,nil,[]])
-def r; return [*[1]]; end; a,b,*c = r(); test_ok([a,b,c] == [1,nil,[]])
-def r; return [*[1,2]]; end; a,b,*c = r(); test_ok([a,b,c] == [1,2,[]])
-
-def r; return *[]; end; a,b,*c = r(); test_ok([a,b,c] == [nil,nil,[]])
-def r; return *[1]; end; a,b,*c = r(); test_ok([a,b,c] == [1,nil,[]])
-def r; return *[nil]; end; a,b,*c = r(); test_ok([a,b,c] == [nil,nil,[]])
-def r; return *[[]]; end; a,b,*c = r(); test_ok([a,b,c] == [[],nil,[]])
-def r; return *[1,2]; end; a,b,*c = r(); test_ok([a,b,c] == [1,2,[]])
-def r; return *[*[]]; end; a,b,*c = r(); test_ok([a,b,c] == [nil,nil,[]])
-def r; return *[*[1]]; end; a,b,*c = r(); test_ok([a,b,c] == [1,nil,[]])
-def r; return *[*[1,2]]; end; a,b,*c = r(); test_ok([a,b,c] == [1,2,[]])
-
-f = lambda {|r,| test_ok([] == r)}
-f.call([], *[])
-
-f = lambda {|r,*l| test_ok([] == r); test_ok([1] == l)}
-f.call([], *[1])
-
-f = lambda{|x| x}
-test_ok(f.call(42) == 42)
-test_ok(f.call([42]) == [42])
-test_ok(f.call([[42]]) == [[42]])
-test_ok(f.call([42,55]) == [42,55])
-
-f = lambda{|x,| x}
-test_ok(f.call(42) == 42)
-test_ok(f.call([42]) == [42])
-test_ok(f.call([[42]]) == [[42]])
-test_ok(f.call([42,55]) == [42,55])
-
-f = lambda{|*x| x}
-test_ok(f.call(42) == [42])
-test_ok(f.call([42]) == [[42]])
-test_ok(f.call([[42]]) == [[[42]]])
-test_ok(f.call([42,55]) == [[42,55]])
-test_ok(f.call(42,55) == [42,55])
-
-f = lambda { |a, b=42, *c| [a,b,c] }
-test_ok(f.call(1      ) == [1,42,[  ]] )
-test_ok(f.call(1,43   ) == [1,43,[  ]] )
-test_ok(f.call(1,43,44) == [1,43,[44]] )
-
-f = lambda { |a, b=(a|16), *c, &block| [a,b,c,block&&block[]] }
-test_ok(f.call(8      )     == [8,24,[  ],nil] )
-test_ok(f.call(8,43   )     == [8,43,[  ],nil] )
-test_ok(f.call(8,43,44)     == [8,43,[44],nil] )
-test_ok(f.call(8      ){45} == [8,24,[  ],45 ] )
-test_ok(f.call(8,43   ){45} == [8,43,[  ],45 ] )
-test_ok(f.call(8,43,44){45} == [8,43,[44],45 ] )
-
-f = lambda { |a, b=42, *c, d| [a,b,c,d] }
-test_ok(f.call(1      ,99) == [1,42,[  ],99] )
-test_ok(f.call(1,43   ,99) == [1,43,[  ],99] )
-test_ok(f.call(1,43,44,99) == [1,43,[44],99] )
-
-f = lambda { |a, b=(a|16), &block| [a,b,block&&block[]] }
-test_ok(f.call(8   )     == [8,24,nil] )
-test_ok(f.call(8,43)     == [8,43,nil] )
-test_ok(f.call(8,43)     == [8,43,nil] )
-test_ok(f.call(8   ){45} == [8,24,45 ] )
-test_ok(f.call(8,43){45} == [8,43,45 ] )
-test_ok(f.call(8,43){45} == [8,43,45 ] )
-
-f = lambda { |a, b=42, d| [a,b,d] }
-test_ok(f.call(1   ,99) == [1,42,99] )
-test_ok(f.call(1,43,99) == [1,43,99] )
-test_ok(f.call(1,43,99) == [1,43,99] )
-
-f = lambda { |b=42, *c, &block| [b,c,block&&block[]] }
-test_ok(f.call(     )     == [42,[  ],nil] )
-test_ok(f.call(43   )     == [43,[  ],nil] )
-test_ok(f.call(43,44)     == [43,[44],nil] )
-test_ok(f.call(     ){45} == [42,[  ],45 ] )
-test_ok(f.call(43   ){45} == [43,[  ],45 ] )
-test_ok(f.call(43,44){45} == [43,[44],45 ] )
-
-f = lambda { |b=42, *c, d| [b,c,d] }
-test_ok(f.call(      99) == [42,[  ],99] )
-test_ok(f.call(43   ,99) == [43,[  ],99] )
-test_ok(f.call(43,44,99) == [43,[44],99] )
-
-f = lambda { |b=42, &block| [b,block&&block[]] }
-test_ok(f.call(  )     == [42,nil] )
-test_ok(f.call(43)     == [43,nil] )
-test_ok(f.call(43)     == [43,nil] )
-test_ok(f.call(  ){45} == [42,45 ] )
-test_ok(f.call(43){45} == [43,45 ] )
-test_ok(f.call(43){45} == [43,45 ] )
-
-f = lambda { |b=42, d| [b,d] }
-test_ok(f.call(   99) == [42,99] )
-test_ok(f.call(43,99) == [43,99] )
-test_ok(f.call(43,99) == [43,99] )
-
-
-a,=*[1]
-test_ok(a == 1)
-a,=*[[1]]
-test_ok(a == [1])
-a,=*[[[1]]]
-test_ok(a == [[1]])
-
-x, (y, z) = 1, 2, 3
-test_ok([1,2,nil] == [x,y,z])
-x, (y, z) = 1, [2,3]
-test_ok([1,2,3] == [x,y,z])
-x, (y, z) = 1, [2]
-test_ok([1,2,nil] == [x,y,z])
-
-a = loop do break; end; test_ok(a == nil)
-a = loop do break nil; end; test_ok(a == nil)
-a = loop do break 1; end; test_ok(a == 1)
-a = loop do break []; end; test_ok(a == [])
-a = loop do break [1]; end; test_ok(a == [1])
-a = loop do break [nil]; end; test_ok(a == [nil])
-a = loop do break [[]]; end; test_ok(a == [[]])
-a = loop do break [*[]]; end; test_ok(a == [])
-a = loop do break [*[1]]; end; test_ok(a == [1])
-a = loop do break [*[1,2]]; end; test_ok(a == [1,2])
-
-a = loop do break *[]; end; test_ok(a == [])
-a = loop do break *[1]; end; test_ok(a == [1])
-a = loop do break *[nil]; end; test_ok(a == [nil])
-a = loop do break *[[]]; end; test_ok(a == [[]])
-a = loop do break *[*[]]; end; test_ok(a == [])
-a = loop do break *[*[1]]; end; test_ok(a == [1])
-a = loop do break *[*[1,2]]; end; test_ok(a == [1,2])
-
-*a = loop do break; end; test_ok(a == [nil])
-*a = loop do break nil; end; test_ok(a == [nil])
-*a = loop do break 1; end; test_ok(a == [1])
-*a = loop do break []; end; test_ok(a == [])
-*a = loop do break [1]; end; test_ok(a == [1])
-*a = loop do break [nil]; end; test_ok(a == [nil])
-*a = loop do break [[]]; end; test_ok(a == [[]])
-*a = loop do break [1,2]; end; test_ok(a == [1,2])
-*a = loop do break [*[]]; end; test_ok(a == [])
-*a = loop do break [*[1]]; end; test_ok(a == [1])
-*a = loop do break [*[1,2]]; end; test_ok(a == [1,2])
-
-*a = loop do break *[]; end; test_ok(a == [])
-*a = loop do break *[1]; end; test_ok(a == [1])
-*a = loop do break *[nil]; end; test_ok(a == [nil])
-*a = loop do break *[[]]; end; test_ok(a == [[]])
-*a = loop do break *[1,2]; end; test_ok(a == [1,2])
-*a = loop do break *[*[]]; end; test_ok(a == [])
-*a = loop do break *[*[1]]; end; test_ok(a == [1])
-*a = loop do break *[*[1,2]]; end; test_ok(a == [1,2])
-
-*a = *loop do break *[[]]; end; test_ok(a == [[]])
-*a = *loop do break *[1,2]; end; test_ok(a == [1,2])
-*a = *loop do break *[*[1,2]]; end; test_ok(a == [1,2])
-
-a,b,*c = loop do break; end; test_ok([a,b,c] == [nil,nil,[]])
-a,b,*c = loop do break nil; end; test_ok([a,b,c] == [nil,nil,[]])
-a,b,*c = loop do break 1; end; test_ok([a,b,c] == [1,nil,[]])
-a,b,*c = loop do break []; end; test_ok([a,b,c] == [nil,nil,[]])
-a,b,*c = loop do break [1]; end; test_ok([a,b,c] == [1,nil,[]])
-a,b,*c = loop do break [nil]; end; test_ok([a,b,c] == [nil,nil,[]])
-a,b,*c = loop do break [[]]; end; test_ok([a,b,c] == [[],nil,[]])
-a,b,*c = loop do break [1,2]; end; test_ok([a,b,c] == [1,2,[]])
-a,b,*c = loop do break [*[]]; end; test_ok([a,b,c] == [nil,nil,[]])
-a,b,*c = loop do break [*[1]]; end; test_ok([a,b,c] == [1,nil,[]])
-a,b,*c = loop do break [*[1,2]]; end; test_ok([a,b,c] == [1,2,[]])
-
-a,b,*c = loop do break *[]; end; test_ok([a,b,c] == [nil,nil,[]])
-a,b,*c = loop do break *[1]; end; test_ok([a,b,c] == [1,nil,[]])
-a,b,*c = loop do break *[nil]; end; test_ok([a,b,c] == [nil,nil,[]])
-a,b,*c = loop do break *[[]]; end; test_ok([a,b,c] == [[],nil,[]])
-a,b,*c = loop do break *[1,2]; end; test_ok([a,b,c] == [1,2,[]])
-a,b,*c = loop do break *[*[]]; end; test_ok([a,b,c] == [nil,nil,[]])
-a,b,*c = loop do break *[*[1]]; end; test_ok([a,b,c] == [1,nil,[]])
-a,b,*c = loop do break *[*[1,2]]; end; test_ok([a,b,c] == [1,2,[]])
-
-def r(val); a = yield(); test_ok(a == val, 2); end
-r(nil){next}
-r(nil){next nil}
-r(1){next 1}
-r([]){next []}
-r([1]){next [1]}
-r([nil]){next [nil]}
-r([[]]){next [[]]}
-r([]){next [*[]]}
-r([1]){next [*[1]]}
-r([1,2]){next [*[1,2]]}
-
-r([]){next *[]}
-r([1]){next *[1]}
-r([nil]){next *[nil]}
-r([[]]){next *[[]]}
-r([]){next *[*[]]}
-r([1]){next *[*[1]]}
-r([1,2]){next *[*[1,2]]}
-
-def r(val); *a = yield(); test_ok(a == val, 2); end
-r([nil]){next}
-r([nil]){next nil}
-r([1]){next 1}
-r([]){next []}
-r([1]){next [1]}
-r([nil]){next [nil]}
-r([[]]){next [[]]}
-r([1,2]){next [1,2]}
-r([]){next [*[]]}
-r([1]){next [*[1]]}
-r([1,2]){next [*[1,2]]}
-
-def r(val); *a = *yield(); test_ok(a == val, 2); end
-r([[]]){next *[[]]}
-r([1,2]){next *[1,2]}
-r([1,2]){next *[*[1,2]]}
-
-def r(val); a,b,*c = yield(); test_ok([a,b,c] == val, 2); end
-r([nil,nil,[]]){next}
-r([nil,nil,[]]){next nil}
-r([1,nil,[]]){next 1}
-r([nil,nil,[]]){next []}
-r([1,nil,[]]){next [1]}
-r([nil,nil,[]]){next [nil]}
-r([[],nil,[]]){next [[]]}
-r([1,2,[]]){next [1,2]}
-r([nil,nil,[]]){next [*[]]}
-r([1,nil,[]]){next [*[1]]}
-r([1,2,[]]){next [*[1,2]]}
-
-def r(val); a,b,*c = *yield(); test_ok([a,b,c] == val, 2); end
-r([[],nil,[]]){next *[[]]}
-r([1,2,[]]){next *[1,2]}
-r([1,2,[]]){next *[*[1,2]]}
-
-test_check "condition"
-
-$x = '0';
-
-$x == $x && test_ok(true)
-$x != $x && test_ok(false)
-$x == $x || test_ok(false)
-$x != $x || test_ok(true)
-
-# first test to see if we can run the tests.
-
-test_check "if/unless";
-
-$x = 'test';
-test_ok(if $x == $x then true else false end)
-$bad = false
-unless $x == $x
-  $bad = true
-end
-test_ok(!$bad)
-test_ok(unless $x != $x then true else false end)
-
-test_check "case"
-
-case 5
-when 1, 2, 3, 4, 6, 7, 8
-  test_ok(false)
-when 5
-  test_ok(true)
-end
-
-case 5
-when 5
-  test_ok(true)
-when 1..10
-  test_ok(false)
-end
-
-case 5
-when 1..10
-  test_ok(true)
-else
-  test_ok(false)
-end
-
-case 5
-when 5
-  test_ok(true)
-else
-  test_ok(false)
-end
-
-case "foobar"
-when /^f.*r$/
-  test_ok(true)
-else
-  test_ok(false)
-end
-
-test_check "while/until";
-
-while_tmp = "while_tmp.#{$$}"
-tmp = open(while_tmp, "w")
-tmp.print "tvi925\n";
-tmp.print "tvi920\n";
-tmp.print "vt100\n";
-tmp.print "Amiga\n";
-tmp.print "paper\n";
-tmp.close
-
-# test break
-
-tmp = open(while_tmp, "r")
-test_ok(tmp.kind_of?(File))
-
-while line = tmp.gets()
-  break if /vt100/ =~ line
-end
-
-test_ok(!tmp.eof? && /vt100/ =~ line)
-tmp.close
-
-# test next
-$bad = false
-tmp = open(while_tmp, "r")
-while line = tmp.gets()
-  next if /vt100/ =~ line
-  $bad = 1 if /vt100/ =~ line
-end
-test_ok(!(!tmp.eof? || /vt100/ =~ line || $bad))
-tmp.close
-
-# test redo
-$bad = false
-tmp = open(while_tmp, "r")
-while line = tmp.gets()
-  lastline = line
-  line = line.gsub(/vt100/, 'VT100')
-  if lastline != line
-    line.gsub!('VT100', 'Vt100')
-    redo
-  end
-  $bad = 1 if /vt100/ =~ line
-  $bad = 1 if /VT100/ =~ line
-end
-test_ok(tmp.eof? && !$bad)
-tmp.close
-
-sum=0
-for i in 1..10
-  sum += i
-  i -= 1
-  if i > 0
-    redo
-  end
-end
-test_ok(sum == 220)
-
-# test interval
-$bad = false
-tmp = open(while_tmp, "r")
-while line = tmp.gets()
-  break if 3
-  case line
-  when /vt100/, /Amiga/, /paper/
-    $bad = true
-  end
-end
-test_ok(!$bad)
-tmp.close
-
-File.unlink while_tmp or `/bin/rm -f "#{while_tmp}"`
-test_ok(!File.exist?(while_tmp))
-
-i = 0
-until i>4
-  i+=1
-end
-test_ok(i>4)
-
-
-# exception handling
-test_check "exception";
-
-begin
-  raise "this must be handled"
-  test_ok(false)
-rescue
-  test_ok(true)
-end
-
-$bad = true
-begin
-  raise "this must be handled no.2"
-rescue
-  if $bad
-    $bad = false
-    retry
-    test_ok(false)
-  end
-end
-test_ok(true)
-
-# exception in rescue clause
-$string = "this must be handled no.3"
-begin
-  begin
-    raise "exception in rescue clause"
-  rescue
-    raise $string
-  end
-  test_ok(false)
-rescue => e
-  test_ok($! == e)
-  test_ok(e.message == $string)
-  test_ok(e != $string)
-end
-
-# exception in ensure clause
-begin
-  begin
-    raise "this must be handled no.4"
-  ensure
-    raise "exception in ensure clause"
-  end
-  test_ok(false)
-rescue
-  test_ok(true)
-end
-
-$bad = true
-begin
-  begin
-    raise "this must be handled no.5"
-  ensure
-    $bad = false
-  end
-rescue
-end
-test_ok(!$bad)
-
-$bad = true
-begin
-  begin
-    raise "this must be handled no.6"
-  ensure
-    $bad = false
-  end
-rescue
-end
-test_ok(!$bad)
-
-$bad = true
-while true
-  begin
-    break
-  ensure
-    $bad = false
-  end
-end
-test_ok(!$bad)
-
-test_ok(catch(:foo) {
-     loop do
-       loop do
-	 throw :foo, true
-	 break
-       end
-       break
-       test_ok(false)			# should not reach here
-     end
-     false
-   })
-
-test_check "array"
-test_ok([1, 2] + [3, 4] == [1, 2, 3, 4])
-test_ok([1, 2] * 2 == [1, 2, 1, 2])
-test_ok([1, 2] * ":" == "1:2")
-
-test_ok([1, 2].hash == [1, 2].hash)
-
-test_ok([1,2,3] & [2,3,4] == [2,3])
-test_ok([1,2,3] | [2,3,4] == [1,2,3,4])
-test_ok([1,2,3] - [2,3] == [1])
-
-$x = [0, 1, 2, 3, 4, 5]
-test_ok($x[2] == 2)
-test_ok($x[1..3] == [1, 2, 3])
-test_ok($x[1,3] == [1, 2, 3])
-
-$x[0, 2] = 10
-test_ok($x[0] == 10 && $x[1] == 2)
-
-$x[0, 0] = -1
-test_ok($x[0] == -1 && $x[1] == 10)
-
-$x[-1, 1] = 20
-test_ok($x[-1] == 20 && $x.pop == 20)
-
-# array and/or
-test_ok(([1,2,3]&[2,4,6]) == [2])
-test_ok(([1,2,3]|[2,4,6]) == [1,2,3,4,6])
-
-# compact
-$x = [nil, 1, nil, nil, 5, nil, nil]
-$x.compact!
-test_ok($x == [1, 5])
-
-# uniq
-$x = [1, 1, 4, 2, 5, 4, 5, 1, 2]
-$x.uniq!
-test_ok($x == [1, 4, 2, 5])
-
-# empty?
-test_ok(!$x.empty?)
-$x = []
-test_ok($x.empty?)
-
-# sort
-$x = ["it", "came", "to", "pass", "that", "..."]
-$x = $x.sort.join(" ")
-test_ok($x == "... came it pass that to")
-$x = [2,5,3,1,7]
-$x.sort!{|a,b| a<=>b}		# sort with condition
-test_ok($x == [1,2,3,5,7])
-$x.sort!{|a,b| b-a}		# reverse sort
-test_ok($x == [7,5,3,2,1])
-
-# split test
-$x = "The Book of Mormon"
-test_ok($x.split(//).reverse!.join == $x.reverse)
-test_ok($x.reverse == $x.reverse!)
-test_ok("1 byte string".split(//).reverse.join(":") == "g:n:i:r:t:s: :e:t:y:b: :1")
-$x = "a b c  d"
-test_ok($x.split == ['a', 'b', 'c', 'd'])
-test_ok($x.split(' ') == ['a', 'b', 'c', 'd'])
-test_ok(defined? "a".chomp)
-test_ok("abc".scan(/./) == ["a", "b", "c"])
-test_ok("1a2b3c".scan(/(\d.)/) == [["1a"], ["2b"], ["3c"]])
-# non-greedy match
-test_ok("a=12;b=22".scan(/(.*?)=(\d*);?/) == [["a", "12"], ["b", "22"]])
-
-$x = [1]
-test_ok(($x * 5).join(":") == '1:1:1:1:1')
-test_ok(($x * 1).join(":") == '1')
-test_ok(($x * 0).join(":") == '')
-
-*$x = *(1..7).to_a
-test_ok($x.size == 7)
-test_ok($x == [1, 2, 3, 4, 5, 6, 7])
-
-$x = [1,2,3]
-$x[1,0] = $x
-test_ok($x == [1,1,2,3,2,3])
-
-$x = [1,2,3]
-$x[-1,0] = $x
-test_ok($x == [1,2,1,2,3,3])
-
-$x = [1,2,3]
-$x.concat($x)
-test_ok($x == [1,2,3,1,2,3])
-
-test_check "hash"
-$x = {1=>2, 2=>4, 3=>6}
-
-test_ok($x[1] == 2)
-
-test_ok(begin
-     for k,v in $x
-       raise if k*2 != v
-     end
-     true
-   rescue
-     false
-   end)
-
-test_ok($x.length == 3)
-test_ok($x.has_key?(1))
-test_ok($x.has_value?(4))
-test_ok($x.values_at(2,3) == [4,6])
-test_ok($x == {1=>2, 2=>4, 3=>6})
-
-$z = $x.keys.sort.join(":")
-test_ok($z == "1:2:3")
-
-$z = $x.values.sort.join(":")
-test_ok($z == "2:4:6")
-test_ok($x == $x)
-
-$x.shift
-test_ok($x.length == 2)
-
-$z = [1,2]
-$x[$z] = 256
-test_ok($x[$z] == 256)
-
-$x = Hash.new(0)
-$x[1] = 1
-test_ok($x[1] == 1)
-test_ok($x[2] == 0)
-
-$x = Hash.new([])
-test_ok($x[22] == [])
-test_ok($x[22].equal?($x[22]))
-
-$x = Hash.new{[]}
-test_ok($x[22] == [])
-test_ok(!$x[22].equal?($x[22]))
-
-$x = Hash.new{|h,k| $z = k; h[k] = k*2}
-$z = 0
-test_ok($x[22] == 44)
-test_ok($z == 22)
-$z = 0
-test_ok($x[22] == 44)
-test_ok($z == 0)
-$x.default = 5
-test_ok($x[23] == 5)
-
-$x = Hash.new
-def $x.default(k)
-  $z = k
-  self[k] = k*2
-end
-$z = 0
-test_ok($x[22] == 44)
-test_ok($z == 22)
-$z = 0
-test_ok($x[22] == 44)
-test_ok($z == 0)
-
-test_check "iterator"
-
-test_ok(!iterator?)
-
-def ttt
-  test_ok(iterator?)
-end
-ttt{}
-
-# yield at top level
-test_ok(!defined?(yield))
-
-$x = [1, 2, 3, 4]
-$y = []
-
-# iterator over array
-for i in $x
-  $y.push i
-end
-test_ok($x == $y)
-
-# nested iterator
-def tt
-  1.upto(10) {|i|
-    yield i
-  }
-end
-
-i=0
-tt{|i| break if i == 5}
-test_ok(i == 0)
-
-def tt2(dummy)
-  yield 1
-end
-
-def tt3(&block)
-  tt2(raise(ArgumentError,""),&block)
-end
-
-$x = false
-begin
-  tt3{}
-rescue ArgumentError
-  $x = true
-rescue Exception
-end
-test_ok($x)
-
-def tt4 &block
-  tt2(raise(ArgumentError,""),&block)
-end
-$x = false
-begin
-  tt4{}
-rescue ArgumentError
-  $x = true
-rescue Exception
-end
-test_ok($x)
-
-# iterator break/redo/next/retry
-done = true
-loop{
-  break
-  done = false			# should not reach here
-}
-test_ok(done)
-
-done = false
-$bad = false
-loop {
-  break if done
-  done = true
-  next
-  $bad = true			# should not reach here
-}
-test_ok(!$bad)
-
-done = false
-$bad = false
-loop {
-  break if done
-  done = true
-  redo
-  $bad = true			# should not reach here
-}
-test_ok(!$bad)
-
-$x = []
-for i in 1 .. 7
-  $x.push i
-end
-test_ok($x.size == 7)
-test_ok($x == [1, 2, 3, 4, 5, 6, 7])
-
-# append method to built-in class
-class Array
-  def iter_test1
-    collect{|e| [e, yield(e)]}.sort{|a,b|a[1]<=>b[1]}
-  end
-  def iter_test2
-    a = collect{|e| [e, yield(e)]}
-    a.sort{|a,b|a[1]<=>b[1]}
-  end
-end
-$x = [[1,2],[3,4],[5,6]]
-test_ok($x.iter_test1{|x|x} == $x.iter_test2{|x|x})
-
-class IterTest
-  def initialize(e); @body = e; end
-
-  def each0(&block); @body.each(&block); end
-  def each1(&block); @body.each {|*x| block.call(*x) } end
-  def each2(&block); @body.each {|*x| block.call(x) } end
-  def each3(&block); @body.each {|x| block.call(*x) } end
-  def each4(&block); @body.each {|x| block.call(x) } end
-  def each5; @body.each {|*x| yield(*x) } end
-  def each6; @body.each {|*x| yield(x) } end
-  def each7; @body.each {|x| yield(*x) } end
-  def each8; @body.each {|x| yield(x) } end
-
-  def f(a)
-    a
-  end
-end
-test_ok(IterTest.new(nil).method(:f).to_proc.call([1]) == [1])
-m = /\w+/.match("abc")
-test_ok(IterTest.new(nil).method(:f).to_proc.call([m]) == [m])
-
-IterTest.new([0]).each0 {|x| test_ok(x == 0)}
-IterTest.new([1]).each1 {|x| test_ok(x == 1)}
-IterTest.new([2]).each2 {|x| test_ok(x == [2])}
-#IterTest.new([3]).each3 {|x| test_ok(x == 3)}
-IterTest.new([4]).each4 {|x| test_ok(x == 4)}
-IterTest.new([5]).each5 {|x| test_ok(x == 5)}
-IterTest.new([6]).each6 {|x| test_ok(x == [6])}
-#IterTest.new([7]).each7 {|x| test_ok(x == 7)}
-IterTest.new([8]).each8 {|x| test_ok(x == 8)}
-
-IterTest.new([[0]]).each0 {|x| test_ok(x == [0])}
-IterTest.new([[1]]).each1 {|x| test_ok(x == [1])}
-IterTest.new([[2]]).each2 {|x| test_ok(x == [[2]])}
-IterTest.new([[3]]).each3 {|x| test_ok(x == 3)}
-IterTest.new([[4]]).each4 {|x| test_ok(x == [4])}
-IterTest.new([[5]]).each5 {|x| test_ok(x == [5])}
-IterTest.new([[6]]).each6 {|x| test_ok(x == [[6]])}
-IterTest.new([[7]]).each7 {|x| test_ok(x == 7)}
-IterTest.new([[8]]).each8 {|x| test_ok(x == [8])}
-
-IterTest.new([[0,0]]).each0 {|*x| test_ok(x == [[0,0]])}
-IterTest.new([[8,8]]).each8 {|*x| test_ok(x == [[8,8]])}
-
-def m0(v)
-  v
-end
-
-def m1
-  m0(block_given?)
-end
-test_ok(m1{p 'test'})
-test_ok(!m1)
-
-def m
-  m0(block_given?,&Proc.new{})
-end
-test_ok(m1{p 'test'})
-test_ok(!m1)
-
-class C
-  include Enumerable
-  def initialize
-    @a = [1,2,3]
-  end
-  def each(&block)
-    @a.each(&block)
-  end
-end
-
-test_ok(C.new.collect{|n| n} == [1,2,3])
-
-test_ok(Proc == lambda{}.class)
-test_ok(Proc == Proc.new{}.class)
-lambda{|a|test_ok(a==1)}.call(1)
-def block_test(klass, &block)
-  test_ok(klass === block)
-end
-
-block_test(NilClass)
-block_test(Proc){}
-
-def call_argument_test(state, proc, *args)
-  x = state
-  begin
-    proc.call(*args)
-  rescue ArgumentError
-    x = !x
-  end
-  test_ok(x,2)
-end
-
-call_argument_test(true, lambda{||})
-call_argument_test(false, lambda{||}, 1)
-call_argument_test(true, lambda{|a,|}, 1)
-call_argument_test(false, lambda{|a,|})
-call_argument_test(false, lambda{|a,|}, 1,2)
-
-call_argument_test(true, Proc.new{||})
-call_argument_test(true, Proc.new{||}, 1)
-call_argument_test(true, Proc.new{|a,|}, 1)
-call_argument_test(true, Proc.new{|a,|})
-call_argument_test(true, Proc.new{|a,|}, 1,2)
-
-def block_get(&block)
-  block
-end
-
-test_ok(Proc == block_get{}.class)
-call_argument_test(true, block_get{||})
-call_argument_test(true, block_get{||}, 1)
-call_argument_test(true, block_get{|a,|}, 1)
-call_argument_test(true, block_get{|a,|})
-call_argument_test(true, block_get{|a,|}, 1,2)
-
-call_argument_test(true, block_get(&lambda{||}))
-call_argument_test(false, block_get(&lambda{||}),1)
-call_argument_test(true, block_get(&lambda{|a,|}),1)
-call_argument_test(false, block_get(&lambda{|a,|}),1,2)
-
-blk = block_get{11}
-test_ok(blk.class == Proc)
-test_ok(blk.to_proc.class == Proc)
-test_ok(blk.clone.call == 11)
-test_ok(block_get(&blk).class == Proc)
-
-lmd = lambda{44}
-test_ok(lmd.class == Proc)
-test_ok(lmd.to_proc.class == Proc)
-test_ok(lmd.clone.call == 44)
-test_ok(block_get(&lmd).class == Proc)
-
-test_ok(Proc.new{|a,| a}.yield(1,2,3) == 1)
-call_argument_test(true, Proc.new{|a,|}, 1,2)
-
-test_ok(Proc.new{|&b| b.call(10)}.call {|x| x} == 10)
-test_ok(Proc.new{|a,&b| b.call(a)}.call(12) {|x| x} == 12)
-
-def test_return1
-  Proc.new {
-    return 55
-  }.yield + 5
-end
-test_ok(test_return1() == 55)
-def test_return2
-  lambda {
-    return 55
-  }.call + 5
-end
-test_ok(test_return2() == 60)
-
-def proc_call(&b)
-  b.call
-end
-def proc_yield()
-  yield
-end
-def proc_return1
-  lambda{return 42}.call+1
-end
-test_ok(proc_return1() == 43)
-def proc_return2
-  ->{return 42}.call+1
-end
-test_ok(proc_return2() == 43)
-def proc_return3
-  proc_call{return 42}+1
-end
-test_ok(proc_return3() == 42)
-def proc_return4
-  proc_yield{return 42}+1
-end
-test_ok(proc_return4() == 42)
-
-def ljump_test(state, proc, *args)
-  x = state
-  begin
-    proc.call(*args)
-  rescue LocalJumpError
-    x = !x
-  end
-  test_ok(x,2)
-end
-
-ljump_test(false, block_get{break})
-ljump_test(true, lambda{break})
-
-def exit_value_test(&block)
-  block.call
-rescue LocalJumpError
-  $!.exit_value
-end
-
-test_ok(45 == exit_value_test{break 45})
-
-test_ok(55 == begin
-              block_get{break 55}.call
-            rescue LocalJumpError
-              $!.exit_value
-            end)
-
-def block_call(&block)
-  block.call
-end
-
-def test_b1
-  block_call{break 11}
-end
-test_ok(test_b1() == 11)
-
-def ljump_rescue(r)
-  begin
-    yield
-  rescue LocalJumpError => e
-    r if /from proc-closure/ =~ e.message
-  end
-end
-
-def test_b2
-  ljump_rescue(22) do
-    block_get{break 21}.call
-  end
-end
-test_ok(test_b2() == 22)
-
-def test_b3
-  ljump_rescue(33) do
-    Proc.new{break 31}.yield
-  end
-end
-test_ok(test_b3() == 33)
-
-def test_b4
-  lambda{break 44}.call
-end
-test_ok(test_b4() == 44)
-
-def test_b5
-  ljump_rescue(55) do
-    b = block_get{break 54}
-    block_call(&b)
-  end
-end
-test_ok(test_b5() == 55)
-
-def test_b6
-  b = lambda{break 67}
-  block_call(&b)
-  66
-end
-test_ok(test_b6() == 66)
-
-def util_r7
-  block_get{break 78}
-end
-
-def test_b7
-  b = util_r7()
-  ljump_rescue(77) do
-    block_call(&b)
-  end
-end
-test_ok(test_b7() == 77)
-
-def util_b8(&block)
-  block_call(&block)
-end
-
-def test_b8
-  util_b8{break 88}
-end
-test_ok(test_b8() == 88)
-
-def util_b9(&block)
-  lambda{block.call; 98}.call
-end
-
-def test_b9
-  util_b9{break 99}
-end
-test_ok(test_b9() == 99)
-
-def util_b10
-  util_b9{break 100}
-end
-
-def test_b10
-  util_b10()
-end
-test_ok(test_b10() == 100)
-
-def test_b11
-  ljump_rescue(111) do
-    loop do
-      Proc.new{break 110}.yield
-      break 112
-    end
-  end
-end
-test_ok(test_b11() == 111)
-
-def test_b12
-  loop do
-    break lambda{break 122}.call
-    break 121
-  end
-end
-test_ok(test_b12() == 122)
-
-def test_b13
-  ljump_rescue(133) do
-    while true
-      Proc.new{break 130}.yield
-      break 131
-    end
-  end
-end
-test_ok(test_b13() == 133)
-
-def test_b14
-  while true
-    break lambda{break 144}.call
-    break 143
-  end
-end
-test_ok(test_b14() == 144)
-
-def test_b15
-  [0].each {|c| yield 1 }
-  156
-end
-test_ok(test_b15{|e| break 155 } == 155)
-
-def marity_test(m)
-  method = method(m)
-  test_ok(method.arity == method.to_proc.arity, 2)
-end
-marity_test(:test_ok)
-marity_test(:marity_test)
-marity_test(:p)
-
-lambda(&method(:test_ok)).call(true)
-lambda(&block_get{|a,n| test_ok(a,n)}).call(true, 2)
-
-class ITER_TEST1
-   def a
-     block_given?
-   end
-end
-
-class ITER_TEST2 < ITER_TEST1
-   def a
-     test_ok(super)
-     super
-   end
-end
-test_ok(ITER_TEST2.new.a {})
-
-class ITER_TEST3
-  def foo x
-    return yield if block_given?
-    x
-  end
-end
-
-class ITER_TEST4 < ITER_TEST3
-  def foo x
-    test_ok(super == yield)
-    test_ok(super(x, &nil) == x)
-  end
-end
-
-ITER_TEST4.new.foo(44){55}
-
-class ITER_TEST5
-   def tt(aa)
-     aa
-   end
-
-   def uu(a)
-      class << self
-         define_method(:tt) do |sym|
-            super(sym)
-         end
-      end
-   end
-
-   def xx(*x)
-     x.size
-   end
-end
-
-a = ITER_TEST5.new
-a.uu(12)
-test_ok(a.tt(1) == 1)
-
-class ITER_TEST6 < ITER_TEST5
-   def xx(*a)
-      a << 12
-      super
-   end
-end
-
-test_ok(ITER_TEST6.new.xx([24]) == 2)
-
-test_check "float"
-test_ok(2.6.floor == 2)
-test_ok((-2.6).floor == -3)
-test_ok(2.6.ceil == 3)
-test_ok((-2.6).ceil == -2)
-test_ok(2.6.truncate == 2)
-test_ok((-2.6).truncate == -2)
-test_ok(2.6.round == 3)
-test_ok((-2.4).truncate == -2)
-test_ok((13.4 % 1 - 0.4).abs < 0.0001)
-nan = 0.0/0
-def nan_test(x,y)
-  test_ok(x != y)
-  test_ok((x < y) == false)
-  test_ok((x > y) == false)
-  test_ok((x <= y) == false)
-  test_ok((x >= y) == false)
-end
-nan_test(nan, nan)
-nan_test(nan, 0)
-nan_test(nan, 1)
-nan_test(nan, -1)
-nan_test(nan, 1000)
-nan_test(nan, -1000)
-nan_test(nan, 1_000_000_000_000)
-nan_test(nan, -1_000_000_000_000)
-nan_test(nan, 100.0);
-nan_test(nan, -100.0);
-nan_test(nan, 0.001);
-nan_test(nan, -0.001);
-nan_test(nan, 1.0/0);
-nan_test(nan, -1.0/0);
-
-#s = "3.7517675036461267e+17"
-#test_ok(s == sprintf("%.16e", s.to_f))
-f = 3.7517675036461267e+17
-test_ok(f == sprintf("%.16e", f).to_f)
-
-
-test_check "bignum"
-def fact(n)
-  return 1 if n == 0
-  f = 1
-  while n>0
-    f *= n
-    n -= 1
-  end
-  return f
-end
-$x = fact(40)
-test_ok($x == $x)
-test_ok($x == fact(40))
-test_ok($x < $x+2)
-test_ok($x > $x-2)
-test_ok($x == 815915283247897734345611269596115894272000000000)
-test_ok($x != 815915283247897734345611269596115894272000000001)
-test_ok($x+1 == 815915283247897734345611269596115894272000000001)
-test_ok($x/fact(20) == 335367096786357081410764800000)
-$x = -$x
-test_ok($x == -815915283247897734345611269596115894272000000000)
-test_ok(2-(2**32) == -(2**32-2))
-test_ok(2**32 - 5 == (2**32-3)-2)
-
-$good = true;
-for i in 1000..1014
-  $good = false if ((1 << i) != (2**i))
-end
-test_ok($good)
-
-$good = true;
-n1= 1 << 1000
-for i in 1000..1014
-  $good = false if ((1 << i) != n1)
-  n1 *= 2
-end
-test_ok($good)
-
-$good = true;
-n2=n1
-for i in 1..10
-  n1 = n1 / 2
-  n2 = n2 >> 1
-  $good = false if (n1 != n2)
-end
-test_ok($good)
-
-$good = true;
-for i in 4000..4096
-  n1 = 1 << i;
-  if (n1**2-1) / (n1+1) != (n1-1)
-    $good = false
-  end
-end
-test_ok($good)
-
-b = 10**80
-a = b * 9 + 7
-test_ok(7 == a.modulo(b))
-test_ok(-b + 7 == a.modulo(-b))
-test_ok(b + -7 == (-a).modulo(b))
-test_ok(-7 == (-a).modulo(-b))
-test_ok(7 == a.remainder(b))
-test_ok(7 == a.remainder(-b))
-test_ok(-7 == (-a).remainder(b))
-test_ok(-7 == (-a).remainder(-b))
-
-test_ok(10**40+10**20 == 10000000000000000000100000000000000000000)
-test_ok(10**40/10**20 == 100000000000000000000)
-
-a = 677330545177305025495135714080
-b = 14269972710765292560
-test_ok(a % b == 0)
-test_ok(-a % b == 0)
-
-def shift_test(a)
-  b = a / (2 ** 32)
-  c = a >> 32
-  test_ok(b == c)
-
-  b = a * (2 ** 32)
-  c = a << 32
-  test_ok(b == c)
-end
-
-shift_test(-4518325415524767873)
-shift_test(-0xfffffffffffffffff)
-
-test_check "string & char"
-
-test_ok("abcd" == "abcd")
-test_ok("abcd" =~ /abcd/)
-test_ok("abcd" === "abcd")
-# compile time string concatenation
-test_ok("ab" "cd" == "abcd")
-test_ok("#{22}aa" "cd#{44}" == "22aacd44")
-test_ok("#{22}aa" "cd#{44}" "55" "#{66}" == "22aacd445566")
-test_ok("abc" !~ /^$/)
-test_ok("abc\n" !~ /^$/)
-test_ok("abc" !~ /^d*$/)
-test_ok(("abc" =~ /d*$/) == 3)
-test_ok("" =~ /^$/)
-test_ok("\n" =~ /^$/)
-test_ok("a\n\n" =~ /^$/)
-test_ok("abcabc" =~ /.*a/ && $& == "abca")
-test_ok("abcabc" =~ /.*c/ && $& == "abcabc")
-test_ok("abcabc" =~ /.*?a/ && $& == "a")
-test_ok("abcabc" =~ /.*?c/ && $& == "abc")
-test_ok(/(.|\n)*?\n(b|\n)/ =~ "a\nb\n\n" && $& == "a\nb")
-
-test_ok(/^(ab+)+b/ =~ "ababb" && $& == "ababb")
-test_ok(/^(?:ab+)+b/ =~ "ababb" && $& == "ababb")
-test_ok(/^(ab+)+/ =~ "ababb" && $& == "ababb")
-test_ok(/^(?:ab+)+/ =~ "ababb" && $& == "ababb")
-
-test_ok(/(\s+\d+){2}/ =~ " 1 2" && $& == " 1 2")
-test_ok(/(?:\s+\d+){2}/ =~ " 1 2" && $& == " 1 2")
-
-$x = <<END;
-ABCD
-ABCD
-END
-$x.gsub!(/((.|\n)*?)B((.|\n)*?)D/, '\1\3')
-test_ok($x == "AC\nAC\n")
-
-test_ok("foobar" =~ /foo(?=(bar)|(baz))/)
-test_ok("foobaz" =~ /foo(?=(bar)|(baz))/)
-
-$foo = "abc"
-test_ok("#$foo = abc" == "abc = abc")
-test_ok("#{$foo} = abc" == "abc = abc")
-
-foo = "abc"
-test_ok("#{foo} = abc" == "abc = abc")
-
-test_ok('-' * 5 == '-----')
-test_ok('-' * 1 == '-')
-test_ok('-' * 0 == '')
-
-foo = '-'
-test_ok(foo * 5 == '-----')
-test_ok(foo * 1 == '-')
-test_ok(foo * 0 == '')
-
-$x = "a.gif"
-test_ok($x.sub(/.*\.([^\.]+)$/, '\1') == "gif")
-test_ok($x.sub(/.*\.([^\.]+)$/, 'b.\1') == "b.gif")
-test_ok($x.sub(/.*\.([^\.]+)$/, '\2') == "")
-test_ok($x.sub(/.*\.([^\.]+)$/, 'a\2b') == "ab")
-test_ok($x.sub(/.*\.([^\.]+)$/, '<\&>') == "<a.gif>")
-
-# character constants(assumes ASCII)
-test_ok("a"[0] == ?a)
-test_ok(?a == ?a)
-test_ok(?\C-a == "\1")
-test_ok(?\M-a == "\341")
-test_ok(?\M-\C-a == "\201")
-test_ok("a".upcase![0] == ?A)
-test_ok("A".downcase![0] == ?a)
-test_ok("abc".tr!("a-z", "A-Z") == "ABC")
-test_ok("aabbcccc".tr_s!("a-z", "A-Z") == "ABC")
-test_ok("abcc".squeeze!("a-z") == "abc")
-test_ok("abcd".delete!("bc") == "ad")
-
-$x = "abcdef"
-$y = [ ?a, ?b, ?c, ?d, ?e, ?f ]
-$bad = false
-$x.each_byte {|i|
-  if i.chr != $y.shift
-    $bad = true
-    break
-  end
-}
-test_ok(!$bad)
-
-s = "a string"
-s[0..s.size]="another string"
-test_ok(s == "another string")
-
-s = <<EOS
-#{
-[1,2,3].join(",")
-}
-EOS
-test_ok(s == "1,2,3\n")
-test_ok("Just".to_i(36) == 926381)
-test_ok("-another".to_i(36) == -23200231779)
-test_ok(1299022.to_s(36) == "ruby")
-test_ok(-1045307475.to_s(36) == "-hacker")
-test_ok("Just_another_Ruby_hacker".to_i(36) == 265419172580680477752431643787347)
-test_ok(-265419172580680477752431643787347.to_s(36) == "-justanotherrubyhacker")
-
-a = []
-(0..255).each {|n|
-  ch = [n].pack("C")
-  a.push ch if /a#{Regexp.quote ch}b/x =~ "ab"
-}
-test_ok(a.size == 0)
-
-test_check "assignment"
-a = nil
-test_ok(defined?(a))
-test_ok(a == nil)
-
-# multiple asignment
-a, b = 1, 2
-test_ok(a == 1 && b == 2)
-
-a, b = b, a
-test_ok(a == 2 && b == 1)
-
-a, = 1,2
-test_ok(a == 1)
-
-a, *b = 1, 2, 3
-test_ok(a == 1 && b == [2, 3])
-
-a, (b, c), d = 1, [2, 3], 4
-test_ok(a == 1 && b == 2 && c == 3 && d == 4)
-
-*a = 1, 2, 3
-test_ok(a == [1, 2, 3])
-
-*a = 4
-test_ok(a == [4])
-
-*a = nil
-test_ok(a == [nil])
-
-test_check "call"
-def aaa(a, b=100, *rest)
-  res = [a, b]
-  res += rest if rest
-  return res
-end
-
-# not enough argument
-begin
-  aaa()				# need at least 1 arg
-  test_ok(false)
-rescue
-  test_ok(true)
-end
-
-begin
-  aaa				# no arg given (exception raised)
-  test_ok(false)
-rescue
-  test_ok(true)
-end
-
-test_ok(aaa(1) == [1, 100])
-test_ok(aaa(1, 2) == [1, 2])
-test_ok(aaa(1, 2, 3, 4) == [1, 2, 3, 4])
-test_ok(aaa(1, *[2, 3, 4]) == [1, 2, 3, 4])
-
-test_check "proc"
-$proc = Proc.new{|i| i}
-test_ok($proc.call(2) == 2)
-test_ok($proc.call(3) == 3)
-
-$proc = Proc.new{|i| i*2}
-test_ok($proc.call(2) == 4)
-test_ok($proc.call(3) == 6)
-
-Proc.new{
-  iii=5				# nested local variable
-  $proc = Proc.new{|i|
-    iii = i
-  }
-  $proc2 = Proc.new {
-    $x = iii			# nested variables shared by procs
-  }
-  # scope of nested variables
-  test_ok(defined?(iii))
-}.call
-test_ok(!defined?(iii))		# out of scope
-
-loop{iii=5; test_ok(eval("defined? iii")); break}
-loop {
-  iii = 10
-  def dyna_var_check
-    loop {
-      test_ok(!defined?(iii))
-      break
-    }
-  end
-  dyna_var_check
-  break
-}
-$x=0
-$proc.call(5)
-$proc2.call
-test_ok($x == 5)
-
-if defined? Process.kill
-  test_check "signal"
-
-  $x = 0
-  trap "SIGINT", Proc.new{|sig| $x = 2}
-  Process.kill "SIGINT", $$
-  100.times {
-    sleep 0.1
-    break if $x != 0
-  }
-  test_ok($x == 2)
-
-  trap "SIGINT", Proc.new{raise "Interrupt"}
-
-  x = false
-  begin
-    Process.kill "SIGINT", $$
-    sleep 0.1
-  rescue
-    x = $!
-  end
-  test_ok(x && /Interrupt/ =~ x.message)
-end
-
-test_check "eval"
-test_ok(eval("") == nil)
-$bad=false
-eval 'while false; $bad = true; print "foo\n" end'
-test_ok(!$bad)
-
-test_ok(eval('Object'))
-test_ok(eval('true'))
-test_ok(!eval('nil'))
-test_ok(!eval('false'))
-
-$foo = 'test_ok(true)'
-begin
-  eval $foo
-rescue
-  test_ok(false)
-end
-
-test_ok(eval("$foo") == 'test_ok(true)')
-test_ok(eval("true") == true)
-i = 5
-test_ok(eval("i == 5"))
-test_ok(eval("i") == 5)
-test_ok(eval("defined? i"))
-
-# eval with binding
-def test_ev
-  local1 = "local1"
-  lambda {
-    local2 = "local2"
-    return binding
-  }.call
-end
-
-$x = test_ev
-test_ok(eval("local1", $x) == "local1") # normal local var
-test_ok(eval("local2", $x) == "local2") # nested local var
-$bad = true
-begin
-  p eval("local1")
-rescue NameError		# must raise error
-  $bad = false
-end
-test_ok(!$bad)
-
-module EvTest
-  EVTEST1 = 25
-  evtest2 = 125
-  $x = binding
-end
-test_ok(eval("EVTEST1", $x) == 25)	# constant in module
-test_ok(eval("evtest2", $x) == 125)	# local var in module
-$bad = true
-begin
-  eval("EVTEST1")
-rescue NameError		# must raise error
-  $bad = false
-end
-test_ok(!$bad)
-
-x = binding #! YARV Limitation: Proc.new{}
-eval "i4 = 1", x
-test_ok(eval("i4", x) == 1)
-x = Proc.new{binding}.call #! YARV Limitation: Proc.new{Proc.new{}}.call
-eval "i4 = 22", x
-test_ok(eval("i4", x) == 22)
-$x = []
-x = Proc.new{binding}.call #! YARV Limitation: Proc.new{Proc.new{}}.call
-eval "(0..9).each{|i5| $x[i5] = Proc.new{i5*2}}", x
-test_ok($x[4].call == 8)
-
-x = binding
-eval "i = 1", x
-test_ok(eval("i", x) == 1)
-x = Proc.new{binding}.call
-eval "i = 22", x
-test_ok(eval("i", x) == 22)
-$x = []
-x = Proc.new{binding}.call
-eval "(0..9).each{|i5| $x[i5] = Proc.new{i5*2}}", x
-test_ok($x[4].call == 8)
-x = Proc.new{binding}.call
-eval "for i6 in 1..1; j6=i6; end", x
-test_ok(eval("defined? i6", x))
-test_ok(eval("defined? j6", x))
-
-Proc.new {
-  p = binding
-  eval "foo11 = 1", p
-  foo22 = 5
-  Proc.new{foo11=22}.call
-  Proc.new{foo22=55}.call
-  test_ok(eval("foo11", p) == eval("foo11"))
-  test_ok(eval("foo11") == 1)
-  test_ok(eval("foo22", p) == eval("foo22"))
-  test_ok(eval("foo22") == 55)
-}.call if false #! YARV Limitation
-
-#! YARV Limitation: p1 = Proc.new{i7 = 0; Proc.new{i7}}.call
-p1 = Proc.new{i7 = 0; binding}.call
-#! YARV Limitation: test_ok(p1.call == 0)
-eval "i7=5", p1
-#! YARV Limitation: test_ok(p1.call == 5)
-test_ok(!defined?(i7))
-
-if false #! YARV Limitation
-p1 = Proc.new{i7 = 0; Proc.new{i7}}.call
-i7 = nil
-test_ok(p1.call == 0)
-eval "i7=1", p1
-test_ok(p1.call == 1)
-eval "i7=5", p1
-test_ok(p1.call == 5)
-test_ok(i7 == nil)
-end
-
-test_check "system"
-test_ok(`echo foobar` == "foobar\n")
-test_ok(`./miniruby -e 'print "foobar"'` == 'foobar')
-
-script_tmp = "script_tmp.#{$$}"
-tmp = open(script_tmp, "w")
-tmp.print "print $zzz\n";
-tmp.close
-
-test_ok(`./miniruby -s #{script_tmp} -zzz` == 'true')
-test_ok(`./miniruby -s #{script_tmp} -zzz=555` == '555')
-
-tmp = open(script_tmp, "w")
-tmp.print "#! /usr/local/bin/ruby -s\n";
-tmp.print "print $zzz\n";
-tmp.close
-
-test_ok(`./miniruby #{script_tmp} -zzz=678` == '678')
-
-tmp = open(script_tmp, "w")
-tmp.print "this is a leading junk\n";
-tmp.print "#! /usr/local/bin/ruby -s\n";
-tmp.print "print $zzz\n";
-tmp.print "__END__\n";
-tmp.print "this is a trailing junk\n";
-tmp.close
-
-test_ok(`./miniruby -x #{script_tmp}` == '')
-test_ok(`./miniruby -x #{script_tmp} -zzz=555` == '555')
-
-tmp = open(script_tmp, "w")
-for i in 1..5
-  tmp.print i, "\n"
-end
-tmp.close
-
-`./miniruby -i.bak -pe '$_.sub!(/^[0-9]+$/){$&.to_i * 5}' #{script_tmp}`
-done = true
-tmp = open(script_tmp, "r")
-while tmp.gets
-  if $_.to_i % 5 != 0
-    done = false
-    break
-  end
-end
-tmp.close
-test_ok(done)
-
-File.unlink script_tmp or `/bin/rm -f "#{script_tmp}"`
-File.unlink "#{script_tmp}.bak" or `/bin/rm -f "#{script_tmp}.bak"`
-
-test_check "const"
-TEST1 = 1
-TEST2 = 2
-
-module Const
-  TEST3 = 3
-  TEST4 = 4
-end
-
-module Const2
-  TEST3 = 6
-  TEST4 = 8
-end
-
-include Const
-
-test_ok([TEST1,TEST2,TEST3,TEST4] == [1,2,3,4])
-
-include Const2
-STDERR.print "intentionally redefines TEST3, TEST4\n" if $VERBOSE
-test_ok([TEST1,TEST2,TEST3,TEST4] == [1,2,6,8])
-
-
-test_ok((String <=> Object) == -1)
-test_ok((Object <=> String) == 1)
-test_ok((Array <=> String) == nil)
-
-test_check "clone"
-foo = Object.new
-def foo.test
-  "test"
-end
-bar = foo.clone
-def bar.test2
-  "test2"
-end
-
-test_ok(bar.test2 == "test2")
-test_ok(bar.test == "test")
-test_ok(foo.test == "test")
-
-begin
-  foo.test2
-  test_ok false
-rescue NoMethodError
-  test_ok true
-end
-
-module M001; end
-module M002; end
-module M003; include M002; end
-module M002; include M001; end
-module M003; include M002; end
-
-test_ok(M003.ancestors == [M003, M002, M001])
-
-test_check "marshal"
-$x = [1,2,3,[4,5,"foo"],{1=>"bar"},2.5,fact(30)]
-$y = Marshal.dump($x)
-test_ok($x == Marshal.load($y))
-
-StrClone=String.clone;
-test_ok(Marshal.load(Marshal.dump(StrClone.new("abc"))).class == StrClone)
-
-[[1,2,3,4], [81, 2, 118, 3146]].each { |w,x,y,z|
-  a = (x.to_f + y.to_f / z.to_f) * Math.exp(w.to_f / (x.to_f + y.to_f / z.to_f))
-  ma = Marshal.dump(a)
-  b = Marshal.load(ma)
-  test_ok(a == b)
-}
-
-test_check "pack"
-
-$format = "c2x5CCxsdils_l_a6";
-# Need the expression in here to force ary[5] to be numeric.  This avoids
-# test2 failing because ary2 goes str->numeric->str and ary does not.
-ary = [1,-100,127,128,32767,987.654321098 / 100.0,12345,123456,-32767,-123456,"abcdef"]
-$x = ary.pack($format)
-ary2 = $x.unpack($format)
-
-test_ok(ary.length == ary2.length)
-test_ok(ary.join(':') == ary2.join(':'))
-test_ok($x =~ /def/)
-
-$x = [-1073741825]
-test_ok($x.pack("q").unpack("q") == $x)
-
-test_check "math"
-test_ok(Math.sqrt(4) == 2)
-
-include Math
-test_ok(sqrt(4) == 2)
-
-test_check "struct"
-struct_test = Struct.new("Test", :foo, :bar)
-test_ok(struct_test == Struct::Test)
-
-test = struct_test.new(1, 2)
-test_ok(test.foo == 1 && test.bar == 2)
-test_ok(test[0] == 1 && test[1] == 2)
-
-a, b = test.to_a
-test_ok(a == 1 && b == 2)
-
-test[0] = 22
-test_ok(test.foo == 22)
-
-test.bar = 47
-test_ok(test.bar == 47)
-
-test_check "variable"
-test_ok($$.instance_of?(Integer))
-
-# read-only variable
-begin
-  $$ = 5
-  test_ok false
-rescue NameError
-  test_ok true
-end
-
-foobar = "foobar"
-$_ = foobar
-test_ok($_ == foobar)
-
-class Gods
-  @@rule = "Uranus"		# private to Gods
-  def ruler0
-    @@rule
-  end
-
-  def self.ruler1		# <= per method definition style
-    @@rule
-  end
-  class << self			# <= multiple method definition style
-    def ruler2
-      @@rule
-    end
-  end
-end
-
-module Olympians
-  @@rule ="Zeus"
-  def ruler3
-    @@rule
-  end
-end
-
-class Titans < Gods
-  @@rule = "Cronus"		# do not affect @@rule in Gods
-  include Olympians
-  def ruler4
-    @@rule
-  end
-end
-
-test_ok(Gods.new.ruler0 == "Cronus")
-test_ok(Gods.ruler1 == "Cronus")
-test_ok(Gods.ruler2 == "Cronus")
-test_ok(Titans.ruler1 == "Cronus")
-test_ok(Titans.ruler2 == "Cronus")
-atlas = Titans.new
-test_ok(atlas.ruler0 == "Cronus")
-test_ok(atlas.ruler3 == "Zeus")
-test_ok(atlas.ruler4 == "Cronus")
-
-test_check "trace"
-$x = 1234
-$y = 0
-trace_var :$x, Proc.new{$y = $x}
-$x = 40414
-test_ok($y == $x)
-
-untrace_var :$x
-$x = 19660208
-test_ok($y != $x)
-
-trace_var :$x, Proc.new{$x *= 2}
-$x = 5
-test_ok($x == 10)
-
-untrace_var :$x
-
-test_check "defined?"
-
-test_ok(defined?($x))		# global variable
-test_ok(defined?($x) == 'global-variable')# returns description
-
-foo=5
-test_ok(defined?(foo))		# local variable
-
-test_ok(defined?(Array))	# constant
-test_ok(defined?(Object.new))	# method
-test_ok(!defined?(Object.print))# private method
-test_ok(defined?(1 == 2))	# operator expression
-
-class Foo
-  def foo
-    p :foo
-  end
-  protected :foo
-  def bar(f)
-    test_ok(defined?(self.foo))
-    test_ok(defined?(f.foo))
-  end
-end
-f = Foo.new
-test_ok(defined?(f.foo) == nil)
-f.bar(f)
-
-def defined_test
-  return !defined?(yield)
-end
-
-test_ok(defined_test)		# not iterator
-test_ok(!defined_test{})	# called as iterator
-
-test_check "alias"
-class Alias0
-  def foo; "foo" end
-end
-class Alias1 < Alias0
-  alias bar foo
-  def foo; "foo+" + super end
-end
-class Alias2 < Alias1
-  alias baz foo
-  undef foo
-end
-
-x = Alias2.new
-test_ok(x.bar == "foo")
-test_ok(x.baz == "foo+foo")
-
-# test_check for cache
-test_ok(x.baz == "foo+foo")
-
-class Alias3 < Alias2
-  def foo
-    defined? super
-  end
-  def bar
-    defined? super
-  end
-  def quux
-    defined? super
-  end
-end
-x = Alias3.new
-test_ok(!x.foo)
-test_ok(x.bar)
-test_ok(!x.quux)
-
-test_check "path"
-test_ok(File.basename("a") == "a")
-test_ok(File.basename("a/b") == "b")
-test_ok(File.basename("a/b/") == "b")
-test_ok(File.basename("/") == "/")
-test_ok(File.basename("//") == "/")
-test_ok(File.basename("///") == "/")
-test_ok(File.basename("a/b////") == "b")
-test_ok(File.basename("a.rb", ".rb") == "a")
-test_ok(File.basename("a.rb///", ".rb") == "a")
-test_ok(File.basename("a.rb///", ".*") == "a")
-test_ok(File.basename("a.rb///", ".c") == "a.rb")
-test_ok(File.dirname("a") == ".")
-test_ok(File.dirname("/") == "/")
-test_ok(File.dirname("/a") == "/")
-test_ok(File.dirname("a/b") == "a")
-test_ok(File.dirname("a/b/c") == "a/b")
-test_ok(File.dirname("/a/b/c") == "/a/b")
-test_ok(File.dirname("/a/b/") == "/a")
-test_ok(File.dirname("/a/b///") == "/a")
-case Dir.pwd
-when %r'\A\w:'
-  test_ok(/\A\w:\/\z/ =~ File.expand_path(".", "/"))
-  test_ok(/\A\w:\/a\z/ =~ File.expand_path("a", "/"))
-  dosish = true
-when %r'\A//'
-  test_ok(%r'\A//[^/]+/[^/]+\z' =~ File.expand_path(".", "/"))
-  test_ok(%r'\A//[^/]+/[^/]+/a\z' =~ File.expand_path(".", "/"))
-  dosish = true
-else
-  test_ok(File.expand_path(".", "/") == "/")
-  test_ok(File.expand_path("sub", "/") == "/sub")
-end
-if dosish
-  test_ok(File.expand_path("/", "//machine/share/sub") == "//machine/share")
-  test_ok(File.expand_path("/dir", "//machine/share/sub") == "//machine/share/dir")
-  test_ok(File.expand_path("/", "z:/sub") == "z:/")
-  test_ok(File.expand_path("/dir", "z:/sub") == "z:/dir")
-end
-test_ok(File.expand_path(".", "//") == "//")
-test_ok(File.expand_path("sub", "//") == "//sub")
-
-# test_check "Proc#binding"
-ObjectSpace.each_object(Proc){|o|
-  begin
-    b = o.binding
-    eval 'self', b
-  rescue ArgumentError
-  end
-}
-
-test_check "gc"
-begin
-  1.upto(10000) {
-    tmp = [0,1,2,3,4,5,6,7,8,9]
-  }
-  tmp = nil
-  test_ok true
-rescue
-  test_ok false
-end
-class S
-  def initialize(a)
-    @a = a
-  end
-end
-l=nil
-100000.times {
-  l = S.new(l)
-}
-GC.start
-test_ok true   # reach here or dumps core
-l = []
-100000.times {
-  l.push([l])
-}
-GC.start
-test_ok true   # reach here or dumps core
-
-ObjectSpace.each_object{|o|
-  o.class.name
-}
-
-test_ok true   # reach here or dumps core
-
-PROGRESS.finish
-if $failed > 0
-  printf "not ok/test: %d failed %d\n", $ntest, $failed
-else
-  printf "end of test(test: %d)\n", $ntest
-end
diff --git a/benchmark/bm_app_aobench.rb b/benchmark/bm_app_aobench.rb
index 2bd6acfaf8..807349089f 100644
--- a/benchmark/bm_app_aobench.rb
+++ b/benchmark/bm_app_aobench.rb
@@ -1,6 +1,7 @@
-# AO render benchmark
+# AO rebder benchmark
 # Original program (C) Syoyo Fujita in Javascript (and other languages)
-#      https://code.google.com/p/aobench/
+#      http://lucille.atso-net.jp/blog/?p=642
+#      http://lucille.atso-net.jp/blog/?p=711
 # Ruby(yarv2llvm) version by Hideki Miura
 #
 
@@ -229,7 +230,7 @@ class Scene
       w.times do |x|
         rad = Vec.new(0.0, 0.0, 0.0)
 
-        # Subsampling
+        # Subsmpling
         nsubsamples.times do |v|
           nsubsamples.times do |u|
 
diff --git a/benchmark/bm_app_lc_fizzbuzz.rb b/benchmark/bm_app_lc_fizzbuzz.rb
deleted file mode 100644
index f09574bbeb..0000000000
--- a/benchmark/bm_app_lc_fizzbuzz.rb
+++ /dev/null
@@ -1,52 +0,0 @@
-#
-# 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_sample_100k_10.rb b/benchmark/bm_array_sample_100k_10.rb
deleted file mode 100644
index 5f41ecc32b..0000000000
--- a/benchmark/bm_array_sample_100k_10.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-arr = [*0...100000]
-10_000.times {arr.sample 10}
diff --git a/benchmark/bm_array_sample_100k_11.rb b/benchmark/bm_array_sample_100k_11.rb
deleted file mode 100644
index 18b1715319..0000000000
--- a/benchmark/bm_array_sample_100k_11.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-arr = [*0...100000]
-10_000.times {arr.sample 11}
diff --git a/benchmark/bm_array_sample_100k__100.rb b/benchmark/bm_array_sample_100k__100.rb
deleted file mode 100644
index 22863afe89..0000000000
--- a/benchmark/bm_array_sample_100k__100.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-arr = [*0...100000]
-10_000.times {arr.sample 100}
diff --git a/benchmark/bm_array_sample_100k__1k.rb b/benchmark/bm_array_sample_100k__1k.rb
deleted file mode 100644
index 4cd79e6c67..0000000000
--- a/benchmark/bm_array_sample_100k__1k.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-arr = [*0...100000]
-10_000.times {arr.sample 1000}
diff --git a/benchmark/bm_array_sample_100k__6k.rb b/benchmark/bm_array_sample_100k__6k.rb
deleted file mode 100644
index b3d264249e..0000000000
--- a/benchmark/bm_array_sample_100k__6k.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-arr = [*0...100000]
-10_000.times {arr.sample 6000}
diff --git a/benchmark/bm_array_sample_100k___10k.rb b/benchmark/bm_array_sample_100k___10k.rb
deleted file mode 100644
index 5dd55ec058..0000000000
--- a/benchmark/bm_array_sample_100k___10k.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-arr = [*0...100000]
-10_000.times {arr.sample 10_000}
diff --git a/benchmark/bm_array_sample_100k___50k.rb b/benchmark/bm_array_sample_100k___50k.rb
deleted file mode 100644
index 1506732c3c..0000000000
--- a/benchmark/bm_array_sample_100k___50k.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-arr = [*0...100000]
-10_000.times {arr.sample 50_000}
diff --git a/benchmark/bm_array_shift.rb b/benchmark/bm_array_shift.rb
deleted file mode 100644
index 798bb9e3f4..0000000000
--- a/benchmark/bm_array_shift.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-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_array_small_and.rb b/benchmark/bm_array_small_and.rb
deleted file mode 100644
index e53a6edae6..0000000000
--- a/benchmark/bm_array_small_and.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-MIN_SIZE = ENV.fetch('SMALL_ARRAY_MIN', 0).to_i
-MAX_SIZE = ENV.fetch('SMALL_ARRAY_MAX', 16).to_i
-ITERATIONS = ENV.fetch('SMALL_ARRAY_ITERATIONS', 100).to_i
-
-ARRAYS = (MIN_SIZE..MAX_SIZE).map do |size1|
-  (MIN_SIZE..MAX_SIZE).map do |size2|
-    [Array.new(size1) { rand(MAX_SIZE) }, Array.new(size2) { rand(MAX_SIZE) }]
-  end
-end
-
-ITERATIONS.times do
-  ARRAYS.each do |group|
-    group.each do |arr1, arr2|
-      arr1 & arr2
-    end
-  end
-end
diff --git a/benchmark/bm_array_small_diff.rb b/benchmark/bm_array_small_diff.rb
deleted file mode 100644
index 9661ee48db..0000000000
--- a/benchmark/bm_array_small_diff.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-MIN_SIZE = ENV.fetch('SMALL_ARRAY_MIN', 0).to_i
-MAX_SIZE = ENV.fetch('SMALL_ARRAY_MAX', 16).to_i
-ITERATIONS = ENV.fetch('SMALL_ARRAY_ITERATIONS', 100).to_i
-
-ARRAYS = (MIN_SIZE..MAX_SIZE).map do |size1|
-  (MIN_SIZE..MAX_SIZE).map do |size2|
-    [Array.new(size1) { rand(MAX_SIZE) }, Array.new(size2) { rand(MAX_SIZE) }]
-  end
-end
-
-ITERATIONS.times do
-  ARRAYS.each do |group|
-    group.each do |arr1, arr2|
-      arr1 - arr2
-    end
-  end
-end
diff --git a/benchmark/bm_array_small_or.rb b/benchmark/bm_array_small_or.rb
deleted file mode 100644
index c58b5fd1ff..0000000000
--- a/benchmark/bm_array_small_or.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-MIN_SIZE = ENV.fetch('SMALL_ARRAY_MIN', 0).to_i
-MAX_SIZE = ENV.fetch('SMALL_ARRAY_MAX', 16).to_i
-ITERATIONS = ENV.fetch('SMALL_ARRAY_ITERATIONS', 100).to_i
-
-ARRAYS = (MIN_SIZE..MAX_SIZE).map do |size1|
-  (MIN_SIZE..MAX_SIZE).map do |size2|
-    [Array.new(size1) { rand(MAX_SIZE) }, Array.new(size2) { rand(MAX_SIZE) }]
-  end
-end
-
-ITERATIONS.times do
-  ARRAYS.each do |group|
-    group.each do |arr1, arr2|
-      arr1 | arr2
-    end
-  end
-end
diff --git a/benchmark/bm_array_sort_block.rb b/benchmark/bm_array_sort_block.rb
deleted file mode 100644
index 3579786056..0000000000
--- a/benchmark/bm_array_sort_block.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-ary = Array.new(1000) { rand(1000) }
-10000.times { ary.sort { |a, b| a <=> b } }
diff --git a/benchmark/bm_array_sort_float.rb b/benchmark/bm_array_sort_float.rb
deleted file mode 100644
index 9a6e2f8bd2..0000000000
--- a/benchmark/bm_array_sort_float.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-arr = Array.new(1000) { rand }
-10000.times { arr.sort }
diff --git a/benchmark/bm_bighash.rb b/benchmark/bm_bighash.rb
deleted file mode 100644
index e2ad5a5c94..0000000000
--- a/benchmark/bm_bighash.rb
+++ /dev/null
@@ -1 +0,0 @@
-h = {}; 5000000.times {|n| h[n] = n }
diff --git a/benchmark/bm_dir_empty_p.rb b/benchmark/bm_dir_empty_p.rb
deleted file mode 100644
index 8329c757cf..0000000000
--- a/benchmark/bm_dir_empty_p.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-require 'tmpdir'
-max = 100_000
-Dir.mktmpdir('bm_dir_empty_p') do |dir|
-  max.times { Dir.empty?(dir) }
-end
diff --git a/benchmark/bm_erb_render.rb b/benchmark/bm_erb_render.rb
deleted file mode 100644
index d2929b0553..0000000000
--- a/benchmark/bm_erb_render.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-require 'erb'
-
-data = DATA.read
-max = 1_500_000
-title = "hello world!"
-content = "hello world!\n" * 10
-
-src = "def self.render(title, content); #{ERB.new(data).src}; end"
-mod = Module.new
-mod.instance_eval(src, "(ERB)")
-
-max.times do
-  mod.render(title, content)
-end
-
-__END__
-
-<html>
-  <head> <%= title %> </head>
-  <body>
-    <h1> <%= title %> </h1>
-    <p>
-      <%= content %>
-    </p>
-  </body>
-</html>
diff --git a/benchmark/bm_file_chmod.rb b/benchmark/bm_file_chmod.rb
deleted file mode 100644
index 1cd4760c9d..0000000000
--- a/benchmark/bm_file_chmod.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-# chmod file
-require 'tempfile'
-max = 200_000
-tmp = Tempfile.new('chmod')
-path = tmp.path
-max.times do
-  File.chmod(0777, path)
-end
-tmp.close!
diff --git a/benchmark/bm_file_rename.rb b/benchmark/bm_file_rename.rb
deleted file mode 100644
index 3bf6a5ef35..0000000000
--- a/benchmark/bm_file_rename.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-# rename file
-require 'tempfile'
-
-max = 100_000
-tmp = [ Tempfile.new('rename-a'), Tempfile.new('rename-b') ]
-a, b = tmp.map { |x| x.path }
-max.times do
-  File.rename(a, b)
-  File.rename(b, a)
-end
-tmp.each { |t| t.close! }
diff --git a/benchmark/bm_hash_aref_dsym.rb b/benchmark/bm_hash_aref_dsym.rb
deleted file mode 100644
index af4f8c36d4..0000000000
--- a/benchmark/bm_hash_aref_dsym.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-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
deleted file mode 100644
index 9d7759379e..0000000000
--- a/benchmark/bm_hash_aref_dsym_long.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-# [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
deleted file mode 100644
index 1346890582..0000000000
--- a/benchmark/bm_hash_aref_fix.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-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
deleted file mode 100644
index 2217274c82..0000000000
--- a/benchmark/bm_hash_aref_flo.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-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
deleted file mode 100644
index b0913dd4bb..0000000000
--- a/benchmark/bm_hash_aref_miss.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-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
deleted file mode 100644
index 19439b061b..0000000000
--- a/benchmark/bm_hash_aref_str.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-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
deleted file mode 100644
index f75d163fe6..0000000000
--- a/benchmark/bm_hash_aref_sym.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-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
deleted file mode 100644
index 9dab8df7be..0000000000
--- a/benchmark/bm_hash_aref_sym_long.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-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
deleted file mode 100644
index e944aae9f2..0000000000
--- a/benchmark/bm_hash_flatten.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-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
deleted file mode 100644
index 0c7edfed3e..0000000000
--- a/benchmark/bm_hash_ident_flo.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-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
deleted file mode 100644
index b226736c6f..0000000000
--- a/benchmark/bm_hash_ident_num.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-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
deleted file mode 100644
index 4b3b58edec..0000000000
--- a/benchmark/bm_hash_ident_obj.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-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
deleted file mode 100644
index 8582b38e31..0000000000
--- a/benchmark/bm_hash_ident_str.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-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
deleted file mode 100644
index 4c81e3d28e..0000000000
--- a/benchmark/bm_hash_ident_sym.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-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
deleted file mode 100644
index 6863cd01f9..0000000000
--- a/benchmark/bm_hash_keys.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-h = {}
-
-10000.times do |i|
-  h[i] = nil
-end
-
-5000.times do
-  h.keys
-end
diff --git a/benchmark/bm_hash_long.rb b/benchmark/bm_hash_long.rb
deleted file mode 100644
index 03d9109602..0000000000
--- a/benchmark/bm_hash_long.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-k1 = "Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong";
-k2 = "Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping";
-h = {k1 => 0, k2 => 0};
-3000000.times{|i| k = i % 2 ? k2 : k1; h [k] = h[k] + 1}
diff --git a/benchmark/bm_hash_shift_u16.rb b/benchmark/bm_hash_shift_u16.rb
deleted file mode 100644
index ec800d0342..0000000000
--- a/benchmark/bm_hash_shift_u16.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-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
deleted file mode 100644
index de4e0fa696..0000000000
--- a/benchmark/bm_hash_shift_u24.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-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
deleted file mode 100644
index 656aa55583..0000000000
--- a/benchmark/bm_hash_shift_u32.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-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_small2.rb b/benchmark/bm_hash_small2.rb
deleted file mode 100644
index 45485d9c71..0000000000
--- a/benchmark/bm_hash_small2.rb
+++ /dev/null
@@ -1 +0,0 @@
-1000000.times.map{|i| a={}; 2.times{|j| a[j]=j}; a}
diff --git a/benchmark/bm_hash_small4.rb b/benchmark/bm_hash_small4.rb
deleted file mode 100644
index acd4084334..0000000000
--- a/benchmark/bm_hash_small4.rb
+++ /dev/null
@@ -1 +0,0 @@
-1000000.times.map{|i| a={}; 4.times{|j| a[j]=j}; a}
diff --git a/benchmark/bm_hash_small8.rb b/benchmark/bm_hash_small8.rb
deleted file mode 100644
index 9cffcc91b6..0000000000
--- a/benchmark/bm_hash_small8.rb
+++ /dev/null
@@ -1 +0,0 @@
-1000000.times.map{|i| a={}; 8.times{|j| a[j]=j}; a}
diff --git a/benchmark/bm_hash_to_proc.rb b/benchmark/bm_hash_to_proc.rb
deleted file mode 100644
index 2b675bf509..0000000000
--- a/benchmark/bm_hash_to_proc.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-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
deleted file mode 100644
index 069441302f..0000000000
--- a/benchmark/bm_hash_values.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-h = {}
-
-10000.times do |i|
-  h[i] = nil
-end
-
-5000.times do
-  h.values
-end
diff --git a/benchmark/bm_int_quo.rb b/benchmark/bm_int_quo.rb
deleted file mode 100644
index e22a3f8c30..0000000000
--- a/benchmark/bm_int_quo.rb
+++ /dev/null
@@ -1 +0,0 @@
-5000000.times { 42.quo(3) }
diff --git a/benchmark/bm_io_copy_stream_write.rb b/benchmark/bm_io_copy_stream_write.rb
deleted file mode 100644
index 3fd87250a4..0000000000
--- a/benchmark/bm_io_copy_stream_write.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-# The goal of this is to use a synthetic (non-IO) reader
-# to trigger the read/write loop of IO.copy_stream,
-# bypassing in-kernel mechanisms like sendfile for zero copy,
-# so we wrap the /dev/zero IO object:
-
-class Zero
-  def initialize
-    @n = 100000
-    @in = File.open('/dev/zero', 'rb')
-  end
-
-  def read(len, buf)
-    return if (@n -= 1) == 0
-    @in.read(len, buf)
-  end
-end
-
-begin
-  src = Zero.new
-  dst = File.open(IO::NULL, 'wb')
-  n = IO.copy_stream(src, dst)
-rescue Errno::ENOENT
-  # not *nix
-end if IO.respond_to?(:copy_stream) && IO.const_defined?(:NULL)
diff --git a/benchmark/bm_io_copy_stream_write_socket.rb b/benchmark/bm_io_copy_stream_write_socket.rb
deleted file mode 100644
index 11f369bd0d..0000000000
--- a/benchmark/bm_io_copy_stream_write_socket.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-# The goal of this is to use a synthetic (non-IO) reader
-# to trigger the read/write loop of IO.copy_stream,
-# bypassing in-kernel mechanisms like sendfile for zero copy,
-# so we wrap the /dev/zero IO object:
-class Zero
-  def initialize
-    @n = 100000
-    @in = File.open('/dev/zero', 'rb')
-  end
-
-  def read(len, buf)
-    return if (@n -= 1) == 0
-    @in.read(len, buf)
-  end
-end
-
-begin
-  require 'socket'
-  src = Zero.new
-  rd, wr = UNIXSocket.pair
-  pid = fork do
-    wr.close
-    buf = String.new
-    while rd.read(16384, buf)
-    end
-  end
-  rd.close
-  IO.copy_stream(src, wr)
-rescue Errno::ENOENT, NotImplementedError, NameError
-  # not *nix: missing /dev/zero, fork, or UNIXSocket
-rescue LoadError # no socket?
-ensure
-  wr.close if wr
-  Process.waitpid(pid) if pid
-end if IO.respond_to?(:copy_stream)
diff --git a/benchmark/bm_io_nonblock_noex.rb b/benchmark/bm_io_nonblock_noex.rb
deleted file mode 100644
index da9357fdc6..0000000000
--- a/benchmark/bm_io_nonblock_noex.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-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
deleted file mode 100644
index 56819d049b..0000000000
--- a/benchmark/bm_io_nonblock_noex2.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-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_io_pipe_rw.rb b/benchmark/bm_io_pipe_rw.rb
deleted file mode 100644
index 6862a8ae61..0000000000
--- a/benchmark/bm_io_pipe_rw.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# Measure uncontended GVL performance via read/write with 1:1 threading
-# If we switch to M:N threading, this will benchmark something else...
-r, w = IO.pipe
-src = '0'.freeze
-dst = String.new
-i = 0
-while i < 1_000_000
-  i += 1
-  w.write(src)
-  r.read(1, dst)
-end
-w.close
-r.close
diff --git a/benchmark/bm_marshal_dump_flo.rb b/benchmark/bm_marshal_dump_flo.rb
deleted file mode 100644
index 9b8d0c6afb..0000000000
--- a/benchmark/bm_marshal_dump_flo.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-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
deleted file mode 100644
index 8252ad90fa..0000000000
--- a/benchmark/bm_marshal_dump_load_geniv.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-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
deleted file mode 100644
index e29743b791..0000000000
--- a/benchmark/bm_marshal_dump_load_time.rb
+++ /dev/null
@@ -1 +0,0 @@
-100000.times { Marshal.load(Marshal.dump(Time.now)) }
diff --git a/benchmark/bm_require.rb b/benchmark/bm_require.rb
deleted file mode 100644
index b8abc88f41..0000000000
--- a/benchmark/bm_require.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-$:.push File.join(File.dirname(__FILE__), "bm_require.data")
-
-1.upto(10000) do |i|
-  require "c#{i}"
-end
-
-$:.pop
diff --git a/benchmark/bm_require_thread.rb b/benchmark/bm_require_thread.rb
deleted file mode 100644
index e54db6c6e5..0000000000
--- a/benchmark/bm_require_thread.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-$:.push File.join(File.dirname(__FILE__), "bm_require.data")
-
-i=0
-t = Thread.new do
-  while true
-    i = i+1 # dummy loop
-  end
-end
-
-1.upto(100) do |i|
-  require "c#{i}"
-end
-
-$:.pop
-t.kill
diff --git a/benchmark/bm_securerandom.rb b/benchmark/bm_securerandom.rb
deleted file mode 100644
index a082ea6d5b..0000000000
--- a/benchmark/bm_securerandom.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-require "securerandom"
-
-20_0000.times do
-  SecureRandom.random_number(100)
-end
diff --git a/benchmark/bm_so_fasta.rb b/benchmark/bm_so_fasta.rb
index dcc6b39507..3f759ba7ae 100644
--- a/benchmark/bm_so_fasta.rb
+++ b/benchmark/bm_so_fasta.rb
@@ -3,7 +3,7 @@
 # Contributed by Sokolov Yura
 
 $last = 42.0
-def gen_random(max, im=139968, ia=3877, ic=29573)
+def gen_random (max,im=139968,ia=3877,ic=29573)
     (max * ($last = ($last * ia + ic) % im)) / im
 end
 
diff --git a/benchmark/bm_so_meteor_contest.rb b/benchmark/bm_so_meteor_contest.rb
index 8c136baa6c..99cf6a91cc 100755..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 boundaries and 2) it produces a prunable board.  if either of these
+    # 1) it overlaps the boundries 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)
@@ -155,7 +155,7 @@ class Rotation
 
   # given a set of directions places the piece (as defined by a set of directions) on the board at
   # a location that will not take it off the edge
-  def get_values( directions )
+  def get_values ( directions )
     start = start_adjust(directions)
     values = [ start ]
     directions.each do | direction |
@@ -260,7 +260,7 @@ end
 
 # support function that create three utility maps:
 #  $converter -- for each row an array that maps a five bit row (via array mapping)
-#                to the a five bit representation of the bits below it
+#                to the a a five bit representation of the bits below it
 #  $bit_count -- maps a five bit row (via array mapping) to the number of 1s in the row
 #  @@new_regions -- maps a five bit row (via array mapping) to an array of "region" arrays
 #                   a region array has three values the first is a mask of bits in the region,
@@ -326,9 +326,9 @@ end
 #  The exact procedure is described in-code
 def prunable( board, location, slotting = false)
   collectors = []
-  # loop across the rows
+  # loop accross the rows
   (location / 6).to_i.upto(9) do | row_on |
-    # obtain a set of regions representing the bits of the current row.
+    # obtain a set of regions representing the bits of the curent 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 multiple of five true is returned since
+    # be zero.  The size of any such reaason is tested if it is not a muliple 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
-          # following reasons:
+          # follwing 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 achieved via recursion.  the overall approach is described
+# and adds any boards found.  depth is acheived 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 noticeable time (performance).
+    # take noticable time (performance).
     if (@boards_found == @stop_count) then
       print_results
       exit(0)
@@ -561,3 +561,4 @@ create_collector_support
 @boards_found = 0
 
 find_all ######## DO IT!!!
+
diff --git a/benchmark/bm_so_pidigits.rb b/benchmark/bm_so_pidigits.rb
index 9a537b2d1c..c7d6fbfb4d 100644
--- a/benchmark/bm_so_pidigits.rb
+++ b/benchmark/bm_so_pidigits.rb
@@ -38,7 +38,7 @@ end
 
 class Transformation
     attr_reader :q, :r, :s, :t
-    def initialize(q, r, s, t)
+    def initialize (q, r, s, t)
         @q,@r,@s,@t,@k = q,r,s,t,0
     end
 
diff --git a/benchmark/bm_string_index.rb b/benchmark/bm_string_index.rb
deleted file mode 100644
index 7783111082..0000000000
--- a/benchmark/bm_string_index.rb
+++ /dev/null
@@ -1,3 +0,0 @@
-str1 = "あ" * 1024 + "い" # not single byte optimizable
-str2 = "い"
-100_000.times { str1.index(str2) }
diff --git a/benchmark/bm_string_scan_re.rb b/benchmark/bm_string_scan_re.rb
deleted file mode 100644
index b0d60201a9..0000000000
--- a/benchmark/bm_string_scan_re.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-str = Array.new(1_000, 'abc').join(',')
-1_000.times { str.scan(/abc/) }
diff --git a/benchmark/bm_string_scan_str.rb b/benchmark/bm_string_scan_str.rb
deleted file mode 100644
index 42440bd948..0000000000
--- a/benchmark/bm_string_scan_str.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-str = Array.new(1_000, 'abc').join(',')
-1_000.times { str.scan('abc') }
diff --git a/benchmark/bm_time_subsec.rb b/benchmark/bm_time_subsec.rb
deleted file mode 100644
index 505021c701..0000000000
--- a/benchmark/bm_time_subsec.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-t = Time.now
-4000000.times { t.subsec }
diff --git a/benchmark/bm_vm1_blockparam.rb b/benchmark/bm_vm1_blockparam.rb
deleted file mode 100755
index 11680a2e61..0000000000
--- a/benchmark/bm_vm1_blockparam.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-def m &b
-end
-
-i = 0
-while i<30_000_000 # while loop 1
-  i += 1
-  m{}
-end
-
diff --git a/benchmark/bm_vm1_blockparam_call.rb b/benchmark/bm_vm1_blockparam_call.rb
deleted file mode 100755
index f6102a2b5a..0000000000
--- a/benchmark/bm_vm1_blockparam_call.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-def m &b
-  b.call
-end
-
-i = 0
-while i<30_000_000 # while loop 1
-  i += 1
-  m{}
-end
diff --git a/benchmark/bm_vm1_blockparam_pass.rb b/benchmark/bm_vm1_blockparam_pass.rb
deleted file mode 100755
index 10029a257a..0000000000
--- a/benchmark/bm_vm1_blockparam_pass.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-def bp_yield
-  yield
-end
-
-def bp_pass &b
-  bp_yield &b
-end
-
-i = 0
-while i<30_000_000 # while loop 1
-  i += 1
-  bp_pass{}
-end
diff --git a/benchmark/bm_vm1_blockparam_yield.rb b/benchmark/bm_vm1_blockparam_yield.rb
deleted file mode 100755
index 6dc01ced7c..0000000000
--- a/benchmark/bm_vm1_blockparam_yield.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-def bp_yield &b
-  yield
-end
-
-i = 0
-while i<30_000_000 # while loop 1
-  i += 1
-  bp_yield{}
-end
diff --git a/benchmark/bm_vm1_gc_wb_ary.rb b/benchmark/bm_vm1_gc_wb_ary.rb
index 1b030386cf..ecfab51dbf 100644
--- a/benchmark/bm_vm1_gc_wb_ary.rb
+++ b/benchmark/bm_vm1_gc_wb_ary.rb
@@ -1,12 +1,10 @@
-short_lived_ary = []
-
-if RUBY_VERSION >= "2.2.0"
-  GC.start(full_mark: false, immediate_mark: true, immediate_sweep: true)
-end
+long_lived = []
+GC.start
+GC.start
 
 i = 0
 short_lived = ''
 while i<30_000_000 # while loop 1
-  short_lived_ary[0] = short_lived # write barrier
+  long_lived[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
deleted file mode 100644
index ebc369a60f..0000000000
--- a/benchmark/bm_vm1_gc_wb_ary_promoted.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-long_lived = []
-
-if RUBY_VERSION > "2.2.0"
-  3.times{ GC.start(full_mark: false, immediate_mark: true, immediate_sweep: true) }
-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
index 96f4261915..017eff4f94 100644
--- a/benchmark/bm_vm1_gc_wb_obj.rb
+++ b/benchmark/bm_vm1_gc_wb_obj.rb
@@ -1,15 +1,13 @@
 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, immediate_sweep: true)
-end
+long_lived = C.new
+GC.start
+GC.start
 
 i = 0
 short_lived = ''
 while i<30_000_000 # while loop 1
-  short_lived_obj.foo = short_lived # write barrier
+  long_lived.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
deleted file mode 100644
index 674c413992..0000000000
--- a/benchmark/bm_vm1_gc_wb_obj_promoted.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-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, immediate_sweep: true) }
-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
deleted file mode 100644
index c62b294e0e..0000000000
--- a/benchmark/bm_vm2_case_lit.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-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_fiber_switch.rb b/benchmark/bm_vm2_fiber_switch.rb
deleted file mode 100644
index c6f615d71d..0000000000
--- a/benchmark/bm_vm2_fiber_switch.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-# based on benchmark for [ruby-core:65518] [Feature #10341] by Knut Franke
-fib = Fiber.new do
-  loop { Fiber.yield }
-end
-i = 0
-while i< 6_000_000 # benchmark loop 2
-  i += 1
-  fib.resume
-end
diff --git a/benchmark/bm_vm2_module_ann_const_set.rb b/benchmark/bm_vm2_module_ann_const_set.rb
deleted file mode 100644
index 12ccfd2ff3..0000000000
--- a/benchmark/bm_vm2_module_ann_const_set.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-i = 0
-while i<6_000_000 # benchmark loop 2
-  i += 1
-  Module.new.const_set(:X, Module.new)
-end
diff --git a/benchmark/bm_vm2_module_const_set.rb b/benchmark/bm_vm2_module_const_set.rb
deleted file mode 100644
index f4d4c1b2e7..0000000000
--- a/benchmark/bm_vm2_module_const_set.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-i = 0
-module M
-end
-$VERBOSE = nil
-while i<6_000_000 # benchmark loop 2
-  i += 1
-  M.const_set(:X, Module.new)
-end
diff --git a/benchmark/bm_vm2_mutex.rb b/benchmark/bm_vm2_mutex.rb
index 5d16480c6b..7362f738c5 100644
--- a/benchmark/bm_vm2_mutex.rb
+++ b/benchmark/bm_vm2_mutex.rb
@@ -1,6 +1,6 @@
 require 'thread'
 
-m = Thread::Mutex.new
+m = Mutex.new
 
 i = 0
 while i<6_000_000 # benchmark loop 2
diff --git a/benchmark/bm_vm2_newlambda.rb b/benchmark/bm_vm2_newlambda.rb
deleted file mode 100644
index 6422c9b0d0..0000000000
--- a/benchmark/bm_vm2_newlambda.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-i = 0
-while i<6_000_000 # benchmark loop 2
-  i += 1
-  lambda {}
-end
diff --git a/benchmark/bm_vm2_poly_singleton.rb b/benchmark/bm_vm2_poly_singleton.rb
deleted file mode 100644
index 0dba4320c4..0000000000
--- a/benchmark/bm_vm2_poly_singleton.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class C1
-  def m; 1; end
-end
-
-o1 = C1.new
-o2 = C1.new
-o2.singleton_class
-
-i = 0
-while i<6_000_000 # benchmark loop 2
-  o = (i % 2 == 0) ? o1 : o2
-  o.m; o.m; o.m; o.m; o.m; o.m; o.m; o.m
-  i += 1
-end
diff --git a/benchmark/bm_vm2_string_literal.rb b/benchmark/bm_vm2_string_literal.rb
deleted file mode 100644
index 1d73036849..0000000000
--- a/benchmark/bm_vm2_string_literal.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-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
deleted file mode 100644
index 22cb26b0a5..0000000000
--- a/benchmark/bm_vm2_struct_big_aref_hi.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-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
deleted file mode 100644
index 5e61a7087e..0000000000
--- a/benchmark/bm_vm2_struct_big_aref_lo.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-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
deleted file mode 100644
index 5a1c3d16f3..0000000000
--- a/benchmark/bm_vm2_struct_big_aset.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-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
deleted file mode 100644
index fff940a80a..0000000000
--- a/benchmark/bm_vm2_struct_big_href_hi.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-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
deleted file mode 100644
index 5e4085d59d..0000000000
--- a/benchmark/bm_vm2_struct_big_href_lo.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-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
deleted file mode 100644
index 9c0cee4141..0000000000
--- a/benchmark/bm_vm2_struct_big_hset.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-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
deleted file mode 100644
index 8eaa555b41..0000000000
--- a/benchmark/bm_vm2_struct_small_aref.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-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
deleted file mode 100644
index ecd0f95669..0000000000
--- a/benchmark/bm_vm2_struct_small_aset.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-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
deleted file mode 100644
index 2c88fee6bf..0000000000
--- a/benchmark/bm_vm2_struct_small_href.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-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
deleted file mode 100644
index 33c36d20f1..0000000000
--- a/benchmark/bm_vm2_struct_small_hset.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-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 e668026915..7db9829d44 100644..100755
--- a/benchmark/bm_vm3_gc.rb
+++ b/benchmark/bm_vm3_gc.rb
@@ -1,3 +1,4 @@
+#! /usr/bin/ruby
 5000.times do
   100.times do
     {"xxxx"=>"yyyy"}
diff --git a/benchmark/bm_vm3_gc_old_full.rb b/benchmark/bm_vm3_gc_old_full.rb
deleted file mode 100644
index cfdfc8c5a5..0000000000
--- a/benchmark/bm_vm3_gc_old_full.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-old_object = Array.new(1_000_000){''}
-100.times do
-  GC.start
-end
diff --git a/benchmark/bm_vm3_gc_old_immediate.rb b/benchmark/bm_vm3_gc_old_immediate.rb
deleted file mode 100644
index ad22feb655..0000000000
--- a/benchmark/bm_vm3_gc_old_immediate.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-old_object = Array.new(1_000_000){''}
-30_000.times do
-  GC.start(full_mark: false, immediate_sweep: true)
-end
diff --git a/benchmark/bm_vm3_gc_old_lazy.rb b/benchmark/bm_vm3_gc_old_lazy.rb
deleted file mode 100644
index b74d44baf1..0000000000
--- a/benchmark/bm_vm3_gc_old_lazy.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-old_object = Array.new(1_000_000){''}
-30_000.times do
-  GC.start(full_mark: false, immediate_sweep: false)
-end
diff --git a/benchmark/bm_vm_symbol_block_pass.rb b/benchmark/bm_vm_symbol_block_pass.rb
deleted file mode 100644
index 1d433353e1..0000000000
--- a/benchmark/bm_vm_symbol_block_pass.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-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
deleted file mode 100644
index 3e9a265ce8..0000000000
--- a/benchmark/bm_vm_thread_close.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-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_condvar1.rb b/benchmark/bm_vm_thread_condvar1.rb
deleted file mode 100644
index cf5706b23e..0000000000
--- a/benchmark/bm_vm_thread_condvar1.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-# two threads, two mutex, two condvar ping-pong
-require 'thread'
-m1 = Mutex.new
-m2 = Mutex.new
-cv1 = ConditionVariable.new
-cv2 = ConditionVariable.new
-max = 100000
-i = 0
-wait = nil
-m2.synchronize do
-  wait = Thread.new do
-    m1.synchronize do
-      m2.synchronize { cv2.signal }
-      while (i += 1) < max
-        cv1.wait(m1)
-        cv2.signal
-      end
-    end
-  end
-  cv2.wait(m2)
-end
-m1.synchronize do
-  while i < max
-    cv1.signal
-    cv2.wait(m1)
-  end
-end
-wait.join
diff --git a/benchmark/bm_vm_thread_condvar2.rb b/benchmark/bm_vm_thread_condvar2.rb
deleted file mode 100644
index 7c8dc19481..0000000000
--- a/benchmark/bm_vm_thread_condvar2.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-# many threads, one mutex, many condvars
-require 'thread'
-m = Mutex.new
-cv1 = ConditionVariable.new
-cv2 = ConditionVariable.new
-max = 1000
-n = 100
-waiting = 0
-scvs = []
-waiters = n.times.map do |i|
-  start_cv = ConditionVariable.new
-  scvs << start_cv
-  start_mtx = Mutex.new
-  start_mtx.synchronize do
-    th = Thread.new(start_mtx, start_cv) do |sm, scv|
-      m.synchronize do
-        sm.synchronize { scv.signal }
-        max.times do
-          cv2.signal if (waiting += 1) == n
-          cv1.wait(m)
-        end
-      end
-    end
-    start_cv.wait(start_mtx)
-    th
-  end
-end
-m.synchronize do
-  max.times do
-    cv2.wait(m) until waiting == n
-    waiting = 0
-    cv1.broadcast
-  end
-end
-waiters.each(&:join)
diff --git a/benchmark/bm_vm_thread_mutex1.rb b/benchmark/bm_vm_thread_mutex1.rb
index 66e42c85e1..5c9f85dfb7 100644
--- a/benchmark/bm_vm_thread_mutex1.rb
+++ b/benchmark/bm_vm_thread_mutex1.rb
@@ -1,7 +1,7 @@
 # one thread, one mutex (no contention)
 
 require 'thread'
-m = Thread::Mutex.new
+m = Mutex.new
 r = 0
 max = 2000
 lmax = max * max
diff --git a/benchmark/bm_vm_thread_mutex2.rb b/benchmark/bm_vm_thread_mutex2.rb
index 6e6c804c31..10de59054f 100644
--- a/benchmark/bm_vm_thread_mutex2.rb
+++ b/benchmark/bm_vm_thread_mutex2.rb
@@ -1,7 +1,7 @@
 # two threads, one mutex
 
 require 'thread'
-m = Thread::Mutex.new
+m = Mutex.new
 r = 0
 max = 2000
 lmax = (max * max)/2
diff --git a/benchmark/bm_vm_thread_mutex3.rb b/benchmark/bm_vm_thread_mutex3.rb
index c750dc542a..7f9a44b39d 100644
--- a/benchmark/bm_vm_thread_mutex3.rb
+++ b/benchmark/bm_vm_thread_mutex3.rb
@@ -1,7 +1,7 @@
 # 1000 threads, one mutex
 
 require 'thread'
-m = Thread::Mutex.new
+m = Mutex.new
 r = 0
 max = 2000
 (1..max).map{
diff --git a/benchmark/bm_vm_thread_pass_flood.rb b/benchmark/bm_vm_thread_pass_flood.rb
index a660aafc18..27157d1a6f 100644
--- a/benchmark/bm_vm_thread_pass_flood.rb
+++ b/benchmark/bm_vm_thread_pass_flood.rb
@@ -1,5 +1,3 @@
-# n.b. this is a good test for GVL when pinned to a single CPU
-
 1000.times{
   Thread.new{loop{Thread.pass}}
 }
diff --git a/benchmark/bm_vm_thread_pipe.rb b/benchmark/bm_vm_thread_pipe.rb
index 112a621905..272d231eba 100644
--- a/benchmark/bm_vm_thread_pipe.rb
+++ b/benchmark/bm_vm_thread_pipe.rb
@@ -1,4 +1,4 @@
-# Measure small and plenty pipe read/write.
+# Mesure 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
index 274ceda366..37381ae62b 100644
--- a/benchmark/bm_vm_thread_queue.rb
+++ b/benchmark/bm_vm_thread_queue.rb
@@ -1,7 +1,7 @@
 require 'thread'
 
 n = 1_000_000
-q = Thread::Queue.new
+q = Queue.new
 consumer = Thread.new{
   while q.pop
     # consuming
diff --git a/benchmark/bm_vm_thread_sized_queue.rb b/benchmark/bm_vm_thread_sized_queue.rb
deleted file mode 100644
index 7b9af5482b..0000000000
--- a/benchmark/bm_vm_thread_sized_queue.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-require 'thread'
-# on producer, one consumer
-
-n = 1_000_000
-q = Thread::SizedQueue.new(100)
-consumer = Thread.new{
-  while q.pop
-    # consuming
-  end
-}
-
-producer = Thread.new{
-  while n > 0
-    q.push true
-    n -= 1
-  end
-  q.push nil
-}
-
-consumer.join
diff --git a/benchmark/bm_vm_thread_sized_queue2.rb b/benchmark/bm_vm_thread_sized_queue2.rb
deleted file mode 100644
index de9f55e978..0000000000
--- a/benchmark/bm_vm_thread_sized_queue2.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-require 'thread'
-# one producer, many consumers
-n = 1_000_000
-m = 10
-q = Thread::SizedQueue.new(100)
-consumers = m.times.map do
-  Thread.new do
-    while q.pop
-      # consuming
-    end
-  end
-end
-
-producer = Thread.new do
-  while n > 0
-    q.push true
-    n -= 1
-  end
-  m.times { q.push nil }
-end
-
-producer.join
-consumers.each(&:join)
diff --git a/benchmark/bm_vm_thread_sized_queue3.rb b/benchmark/bm_vm_thread_sized_queue3.rb
deleted file mode 100644
index ce5f1796d8..0000000000
--- a/benchmark/bm_vm_thread_sized_queue3.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-require 'thread'
-# many producers, one consumer
-n = 1_000_000
-m = 10
-q = Thread::SizedQueue.new(100)
-consumer = Thread.new do
-  while q.pop
-    # consuming
-  end
-end
-
-producers = m.times.map do
-  Thread.new do
-    while n > 0
-      q.push true
-      n -= 1
-    end
-  end
-end
-producers.each(&:join)
-q.push nil
-consumer.join
diff --git a/benchmark/bm_vm_thread_sized_queue4.rb b/benchmark/bm_vm_thread_sized_queue4.rb
deleted file mode 100644
index a9b7d80ec0..0000000000
--- a/benchmark/bm_vm_thread_sized_queue4.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-require 'thread'
-# many producers, many consumers
-nr = 1_000_000
-n = 10
-m = 10
-q = Thread::SizedQueue.new(100)
-consumers = n.times.map do
-  Thread.new do
-    while q.pop
-      # consuming
-    end
-  end
-end
-
-producers = m.times.map do
-  Thread.new do
-    while nr > 0
-      q.push true
-      nr -= 1
-    end
-  end
-end
-
-producers.each(&:join)
-n.times { q.push nil }
-consumers.each(&:join)
diff --git a/benchmark/driver.rb b/benchmark/driver.rb
index 469fc99f40..695dc41aff 100755..100644
--- a/benchmark/driver.rb
+++ b/benchmark/driver.rb
@@ -1,4 +1,3 @@
-#!/usr/bin/env ruby
 #
 # Ruby Benchmark driver
 #
@@ -19,7 +18,6 @@ end
 
 require 'benchmark'
 require 'pp'
-require 'tempfile'
 
 class BenchmarkDriver
   def self.benchmark(opt)
@@ -31,30 +29,6 @@ class BenchmarkDriver
     end
   end
 
-  def self.load(input, type, opt)
-    case type
-    when 'yaml'
-      require 'yaml'
-      h = YAML.load(input)
-    when 'json'
-      require 'json'
-      h = JSON.load(input)
-    else
-      h = eval(input.read)
-    end
-    results = h[:results] || h["results"]
-    obj = allocate
-    obj.instance_variable_set("@execs", h[:executables] || h["executables"])
-    obj.instance_variable_set("@results", results)
-    obj.instance_variable_set("@opt", opt)
-    [1, 2].each do |i|
-      loop = results.assoc((n = "loop_whileloop#{i}").intern) || results.assoc(n)
-      obj.instance_variable_set("@loop_wl#{i}", loop ? loop[1].map {|t,*|t} : nil)
-    end
-    obj.instance_variable_set("@measure_target", opt[:measure_target] || opt["measure_target"])
-    obj
-  end
-
   def output *args
     puts(*args)
     @output and @output.puts(*args)
@@ -105,7 +79,6 @@ class BenchmarkDriver
     @output = opt[:output] ? open(opt[:output], 'w') : nil
     @loop_wl1 = @loop_wl2 = nil
     @ruby_arg = opt[:ruby_arg] || nil
-    @measure_target = opt[:measure_target]
     @opt = opt
 
     # [[name, [[r-1-1, r-1-2, ...], [r-2-1, r-2-2, ...]]], ...]
@@ -117,7 +90,6 @@ class BenchmarkDriver
       @execs.each_with_index{|(path, label, version), i|
         message "target #{i}: " + (label == version ? "#{label}" : "#{label} (#{version})") + " at \"#{path}\""
       }
-      message "measure target: #{@measure_target}"
     end
   end
 
@@ -145,27 +117,6 @@ 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, result|
-      v.size + (case v; when /^vm1_/; @loop_wl1; when /^vm2_/; @loop_wl2; end ? 1 : 0)
-    }.max
-    minwidth ||= 7
-    width = @execs.map{|(_, v)| [v.size, minwidth].max}
-
     output
 
     if @verbose
@@ -177,29 +128,6 @@ 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:'
 
@@ -207,33 +135,20 @@ class BenchmarkDriver
       output "minimum results in each #{@repeat} measurements."
     end
 
-    output({
-      real: "Execution time (sec)",
-      peak: "Memory usage (peak) (B)",
-      size: "Memory usage (last size) (B)",
-    }[@measure_target])
-    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
+    output "Execution time (sec)"
+    output "name\t#{@execs.map{|(_, v)| v}.join("\t")}"
     @results.each{|v, result|
       rets = []
       s = adjusted_results(v, result){|r|
-        rets << sprintf(numformat, r, width[rets.size])
+        rets << sprintf("%.3f", r)
       }
-      v += s if s
-      output [v.ljust(name_width), rets].join("")
+      output "#{v}#{s}\t#{rets.join("\t")}"
     }
 
     if @execs.size > 1
       output
-      output({
-        real: "Speedup ratio: compare with the result of `#{@execs[0][1]}' (greater is better)",
-        peak: "Memory consuming ratio (peak) with the result of `#{@execs[0][1]}' (greater is better)",
-        size: "Memory consuming ratio (size) with the result of `#{@execs[0][1]}' (greater is better)",
-      }[@measure_target])
-      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
+      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")}"
       @results.each{|v, result|
         rets = []
         first_value = nil
@@ -242,14 +157,13 @@ class BenchmarkDriver
             if r == 0
               rets << "Error"
             else
-              rets << sprintf(numformat, first_value/Float(r), width[rets.size+1])
+              rets << sprintf("%.3f", first_value/r)
             end
           else
             first_value = r
           end
         }
-        v += s if s
-        output [v.ljust(name_width), rets].join("")
+        output "#{v}#{s}\t#{rets.join("\t")}"
       }
     end
 
@@ -324,37 +238,18 @@ class BenchmarkDriver
     result
   end
 
-  unless defined?(File::NULL)
-    if File.exist?('/dev/null')
-      File::NULL = '/dev/null'
-    end
-  end
-
   def measure executable, file
-    case @measure_target
-    when :real
-      cmd = "#{executable} #{@ruby_arg} #{file}"
-      m = Benchmark.measure{
-        system(cmd, out: File::NULL)
-      }
-      result = m.real
-    when :peak, :size
-      tmp = Tempfile.new("benchmark-memory-wrapper-data")
-      wrapper = "#{File.join(__dir__, 'memory_wrapper.rb')} #{tmp.path} #{@measure_target}"
-      cmd = "#{executable} #{@ruby_arg} #{wrapper} #{file}"
-      system(cmd, out: File::NULL)
-      result = tmp.read.to_i
-      tmp.close
-    else
-      raise "unknown measure target"
-    end
+    cmd = "#{executable} #{@ruby_arg} #{file}"
+
+    m = Benchmark.measure{
+      `#{cmd}`
+    }
 
     if $? != 0
-      raise $?.inspect if $? && $?.signaled?
       output "\`#{cmd}\' exited with abnormal status (#{$?})"
       0
     else
-      result
+      m.real
     end
   end
 end
@@ -364,15 +259,7 @@ if __FILE__ == $0
     :execs => [],
     :dir => File.dirname(__FILE__),
     :repeat => 1,
-    :measure_target => :real,
-    :output => nil,
-    :raw_output => nil,
-    :format => :tsv,
-  }
-  formats = {
-    :tsv => ".tsv",
-    :markdown => ".md",
-    :plain => ".txt",
+    :output => "bmlog-#{Time.now.strftime('%Y%m%d-%H%M%S')}.#{$$}",
   }
 
   parser = OptionParser.new{|o|
@@ -382,11 +269,6 @@ if __FILE__ == $0
          opt[:execs] << path
        }
     }
-    o.on('--rbenv [VERSIONS]', 'Specify benchmark targets with rbenv version (vX.X.X;vX.X.X;...)'){|v|
-      v.split(/;/).each{|version|
-        opt[:execs] << "#{version}::#{`RBENV_VERSION='#{version}' rbenv which ruby`.rstrip}"
-      }
-    }
     o.on('-d', '--directory [DIRECTORY]', "Benchmark suites directory"){|d|
       opt[:dir] = d
     }
@@ -405,37 +287,15 @@ if __FILE__ == $0
     o.on('--ruby-arg [ARG]', "Optional argument for ruby"){|a|
       opt[:ruby_arg] = a
     }
-    o.on('--measure-target [TARGET]', 'real (execution time), peak, size (memory)'){|mt|
-      opt[:measure_target] = mt.to_sym
-    }
-    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('-q', '--quiet', "Run without notify information except result table."){|q|
+      opt[:quiet] = q
     }
     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)
-
-  if input = opt[:rawdata_input]
-    b = open(input) {|f|
-      BenchmarkDriver.load(f, File.extname(input)[1..-1], opt)
-    }
-    b.show_results
-  else
-    opt[:output] ||= "bmlog-#{Time.now.strftime('%Y%m%d-%H%M%S')}.#{$$}#{formats[opt[:format]]}"
-    BenchmarkDriver.benchmark(opt)
-  end
+  BenchmarkDriver.benchmark(opt)
 end
 
diff --git a/benchmark/gc/gcbench.rb b/benchmark/gc/gcbench.rb
index 09a404466a..b038b71b54 100644
--- a/benchmark/gc/gcbench.rb
+++ b/benchmark/gc/gcbench.rb
@@ -34,7 +34,7 @@ end
 
 pp GC.stat
 
-puts "#{RUBY_DESCRIPTION} #{GC::OPTS.inspect}" if defined?(GC::OPTS)
+puts "#{RUBY_DESCRIPTION} #{GC::OPTS.inspect}"
 
 desc = "#{RUBY_VERSION}#{RUBY_PATCHLEVEL >= 0 ? "p#{RUBY_PATCHLEVEL}" : "dev"}"
 name = File.basename(script, '.rb')
diff --git a/benchmark/memory_wrapper.rb b/benchmark/memory_wrapper.rb
deleted file mode 100644
index 3f4451a037..0000000000
--- a/benchmark/memory_wrapper.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-
-write_file, target, script_file = ARGV
-
-load(script_file)
-require_relative '../test/lib/memory_status'
-open(write_file, 'wb'){|f|
-  ms = Memory::Status.new
-  case target.to_sym
-  when :peak
-    key = ms.respond_to?(:hwm) ? :hwm : :peak
-  when :size
-    key = ms.respond_to?(:rss) ? :rss : :size
-  end
-
-  f.puts ms[key]
-}
diff --git a/benchmark/prepare_require.rb b/benchmark/prepare_require.rb
deleted file mode 100644
index c4786f04ad..0000000000
--- a/benchmark/prepare_require.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-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
deleted file mode 100644
index 339ecb8b39..0000000000
--- a/benchmark/prepare_require_thread.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-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 d83aeb7a7e..f28f4460a1 100644
--- a/benchmark/prepare_so_k_nucleotide.rb
+++ b/benchmark/prepare_so_k_nucleotide.rb
@@ -1,2 +1,2 @@
-require_relative 'make_fasta_output'
+require File.join(File.dirname(__FILE__), '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 da3ec2df14..7f089109de 100644
--- a/benchmark/prepare_so_reverse_complement.rb
+++ b/benchmark/prepare_so_reverse_complement.rb
@@ -1,2 +1,2 @@
-require_relative 'make_fasta_output'
+require File.join(File.dirname(__FILE__), 'make_fasta_output')
 prepare_fasta_output(2_500_000)
diff --git a/bignum.c b/bignum.c
index 7ffb798e5e..bced660134 100644
--- a/bignum.c
+++ b/bignum.c
@@ -9,10 +9,10 @@
 
 **********************************************************************/
 
-#include "internal.h"
+#include "ruby/ruby.h"
 #include "ruby/thread.h"
 #include "ruby/util.h"
-#include "id.h"
+#include "internal.h"
 
 #ifdef HAVE_STRINGS_H
 #include <strings.h>
@@ -23,7 +23,7 @@
 #ifdef HAVE_IEEEFP_H
 #include <ieeefp.h>
 #endif
-#include "ruby_assert.h"
+#include <assert.h>
 
 #if defined(HAVE_LIBGMP) && defined(HAVE_GMP_H)
 #define USE_GMP
@@ -32,13 +32,13 @@
 
 #define RB_BIGNUM_TYPE_P(x) RB_TYPE_P((x), T_BIGNUM)
 
-#ifndef RUBY_INTEGER_UNIFICATION
 VALUE rb_cBignum;
-#endif
 const char ruby_digitmap[] = "0123456789abcdefghijklmnopqrstuvwxyz";
 
 #ifndef SIZEOF_BDIGIT_DBL
-# if SIZEOF_INT*2 <= SIZEOF_LONG_LONG
+# if defined(HAVE_INT64_T) && defined(HAVE_INT128_T)
+#  define SIZEOF_BDIGIT_DBL SIZEOF_INT128_T
+# elif SIZEOF_INT*2 <= SIZEOF_LONG_LONG
 #  define SIZEOF_BDIGIT_DBL SIZEOF_LONG_LONG
 # else
 #  define SIZEOF_BDIGIT_DBL SIZEOF_LONG
@@ -47,17 +47,17 @@ const char ruby_digitmap[] = "0123456789abcdefghijklmnopqrstuvwxyz";
 
 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(sizeof_bdigit, SIZEOF_BDIGITS <= sizeof(BDIGIT));
+STATIC_ASSERT(sizeof_bdigit_and_dbl, SIZEOF_BDIGITS*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));
+STATIC_ASSERT(rbignum_embed_len_max, RBIGNUM_EMBED_LEN_MAX <= (RBIGNUM_EMBED_LEN_MASK >> RBIGNUM_EMBED_LEN_SHIFT));
 
-#if SIZEOF_BDIGIT < SIZEOF_LONG
-STATIC_ASSERT(sizeof_long_and_sizeof_bdigit, SIZEOF_LONG % SIZEOF_BDIGIT == 0);
+#if SIZEOF_BDIGITS < SIZEOF_LONG
+STATIC_ASSERT(sizeof_long_and_sizeof_bdigit, SIZEOF_LONG % SIZEOF_BDIGITS == 0);
 #else
-STATIC_ASSERT(sizeof_long_and_sizeof_bdigit, SIZEOF_BDIGIT % SIZEOF_LONG == 0);
+STATIC_ASSERT(sizeof_long_and_sizeof_bdigit, SIZEOF_BDIGITS % SIZEOF_LONG == 0);
 #endif
 
 #ifdef WORDS_BIGENDIAN
@@ -73,8 +73,8 @@ STATIC_ASSERT(sizeof_long_and_sizeof_bdigit, SIZEOF_BDIGIT % SIZEOF_LONG == 0);
 #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 BDIGITS(x) (RBIGNUM_DIGITS(x))
+#define BITSPERDIG (SIZEOF_BDIGITS*CHAR_BIT)
 #define BIGRAD ((BDIGIT_DBL)1 << BITSPERDIG)
 #define BIGRAD_HALF ((BDIGIT)(BIGRAD >> 1))
 #define BDIGIT_MSB(d) (((d) & BIGRAD_HALF) != 0)
@@ -84,24 +84,25 @@ STATIC_ASSERT(sizeof_long_and_sizeof_bdigit, SIZEOF_BDIGIT % SIZEOF_LONG == 0);
 #define BDIGMAX ((BDIGIT)(BIGRAD-1))
 #define BDIGIT_DBL_MAX (~(BDIGIT_DBL)0)
 
-#if SIZEOF_BDIGIT == 2
+#if SIZEOF_BDIGITS == 2
 #   define swap_bdigit(x) swap16(x)
-#elif SIZEOF_BDIGIT == 4
+#elif SIZEOF_BDIGITS == 4
 #   define swap_bdigit(x) swap32(x)
-#elif SIZEOF_BDIGIT == 8
+#elif SIZEOF_BDIGITS == 8
 #   define swap_bdigit(x) swap64(x)
 #endif
 
-#define BIGZEROP(x) (BIGNUM_LEN(x) == 0 || \
+#define BIGZEROP(x) (RBIGNUM_LEN(x) == 0 || \
 		     (BDIGITS(x)[0] == 0 && \
-		      (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) : \
+		      (RBIGNUM_LEN(x) == 1 || bigzero_p(x))))
+#define BIGSIZE(x) (RBIGNUM_LEN(x) == 0 ? (size_t)0 : \
+    BDIGITS(x)[RBIGNUM_LEN(x)-1] ? \
+        (size_t)(RBIGNUM_LEN(x)*SIZEOF_BDIGITS - nlz(BDIGITS(x)[RBIGNUM_LEN(x)-1])/CHAR_BIT) : \
     rb_absint_size(x, NULL))
 
 #define BIGDIVREM_EXTRA_WORDS 1
-#define bdigit_roomof(n) roomof(n, SIZEOF_BDIGIT)
+#define roomof(n, m) ((long)(((n)+(m)-1) / (m)))
+#define bdigit_roomof(n) roomof(n, SIZEOF_BDIGITS)
 #define BARY_ARGS(ary) ary, numberof(ary)
 
 #define BARY_ADD(z, x, y) bary_add(BARY_ARGS(z), BARY_ARGS(x), BARY_ARGS(y))
@@ -110,10 +111,10 @@ STATIC_ASSERT(sizeof_long_and_sizeof_bdigit, SIZEOF_BDIGIT % SIZEOF_LONG == 0);
 #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 RBIGNUM_SET_NEGATIVE_SIGN(b) RBIGNUM_SET_SIGN(b, 0)
+#define RBIGNUM_SET_POSITIVE_SIGN(b) RBIGNUM_SET_SIGN(b, 1)
 
-#define bignew(len,sign) bignew_1(rb_cInteger,(len),(sign))
+#define bignew(len,sign) bignew_1(rb_cBignum,(len),(sign))
 
 #define BDIGITS_ZERO(ptr, n) do { \
   BDIGIT *bdigitz_zero_ptr = (ptr); \
@@ -139,11 +140,6 @@ STATIC_ASSERT(sizeof_long_and_sizeof_bdigit, SIZEOF_BDIGIT % SIZEOF_LONG == 0);
 #define GMP_DIV_DIGITS 20
 #define GMP_BIG2STR_DIGITS 20
 #define GMP_STR2BIG_DIGITS 20
-#ifdef USE_GMP
-# define NAIVE_MUL_DIGITS GMP_MUL_DIGITS
-#else
-# define NAIVE_MUL_DIGITS KARATSUBA_MUL_DIGITS
-#endif
 
 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);
 
@@ -154,21 +150,21 @@ static void bary_divmod(BDIGIT *qds, size_t qn, BDIGIT *rds, size_t rn, const BD
 
 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 VALUE bignew_1(VALUE klass, long 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; }
+#if SIZEOF_BDIGITS <= SIZEOF_INT
+static int nlz(BDIGIT x) { return nlz_int((unsigned int)x) - (SIZEOF_INT-SIZEOF_BDIGITS) * CHAR_BIT; }
+#elif SIZEOF_BDIGITS <= SIZEOF_LONG
+static int nlz(BDIGIT x) { return nlz_long((unsigned long)x) - (SIZEOF_LONG-SIZEOF_BDIGITS) * CHAR_BIT; }
+#elif SIZEOF_BDIGITS <= SIZEOF_LONG_LONG
+static int nlz(BDIGIT x) { return nlz_long_long((unsigned LONG_LONG)x) - (SIZEOF_LONG_LONG-SIZEOF_BDIGITS) * CHAR_BIT; }
+#elif SIZEOF_BDIGITS <= SIZEOF_INT128_T
+static int nlz(BDIGIT x) { return nlz_int128((uint128_t)x) - (SIZEOF_INT128_T-SIZEOF_BDIGITS) * CHAR_BIT; }
 #endif
 
 #define U16(a) ((uint16_t)(a))
@@ -180,7 +176,7 @@ static int nlz(BDIGIT x) { return nlz_int128((uint128_t)x) - (SIZEOF_INT128_T-SI
 #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.
+/* The following scirpt, maxpow.rb, generates the tables follows.
 
 def big(n, bits)
   ns = []
@@ -224,7 +220,7 @@ end
 
  */
 
-#if SIZEOF_BDIGIT_DBL == 2
+#ifdef HAVE_UINT16_T
 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,
@@ -240,7 +236,8 @@ static const uint16_t maxpow16_num[35] = {
     U16(0x00006978), U16(0x0000745f), U16(0x00008000), U16(0x00008c61),
     U16(0x00009988), U16(0x0000a77b), U16(0x0000b640),
 };
-#elif SIZEOF_BDIGIT_DBL == 4
+#endif
+#ifdef HAVE_UINT32_T
 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,
@@ -256,7 +253,8 @@ static const uint32_t maxpow32_num[35] = {
     U32(0x2b73a840), U32(0x34e63b41), U32(0x40000000), U32(0x4cfa3cc1),
     U32(0x5c13d840), U32(0x6d91b519), U32(0x81bf1000),
 };
-#elif SIZEOF_BDIGIT_DBL == 8 && defined HAVE_UINT64_T
+#endif
+#ifdef 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,
@@ -282,7 +280,8 @@ static const uint64_t maxpow64_num[35] = {
     U64(0x211e44f7,0xd02c1000), U64(0x2ee56725,0xf06e5c71),
     U64(0x41c21cb8,0xe1000000),
 };
-#elif SIZEOF_BDIGIT_DBL == 16 && defined HAVE_UINT128_T
+#endif
+#ifdef 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,
@@ -420,20 +419,21 @@ 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--) {
-	BDIGIT x = xds[n];
-	num = (num | x) >> shift;
+	num = (num | xds[n]) >> shift;
+        x = xds[n];
 	zds[n] = BIGLO(num);
 	num = BIGUP(x);
     }
 }
 
 static int
-bary_zero_p(const BDIGIT *xds, size_t xn)
+bary_zero_p(BDIGIT *xds, size_t xn)
 {
     if (xn == 0)
         return 1;
@@ -667,7 +667,7 @@ bary_pack(int sign, BDIGIT *ds, size_t num_bdigits, void *words, size_t numwords
                     *((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 defined(HAVE_UINT16_T) && 2 <= SIZEOF_BDIGITS
                 if (wordsize == 2 && (uintptr_t)words % ALIGNOF(uint16_t) == 0) {
                     uint16_t u = (uint16_t)(d = dp[0]);
                     if (need_swap) u = swap16(u);
@@ -675,7 +675,7 @@ bary_pack(int sign, BDIGIT *ds, size_t num_bdigits, void *words, size_t numwords
                     return ((1 < de - dp || CLEAR_LOWBITS(d, 16) != 0) ? 2 : 1) * sign;
                 }
 #endif
-#if defined(HAVE_UINT32_T) && 4 <= SIZEOF_BDIGIT
+#if defined(HAVE_UINT32_T) && 4 <= SIZEOF_BDIGITS
                 if (wordsize == 4 && (uintptr_t)words % ALIGNOF(uint32_t) == 0) {
                     uint32_t u = (uint32_t)(d = dp[0]);
                     if (need_swap) u = swap32(u);
@@ -683,7 +683,7 @@ bary_pack(int sign, BDIGIT *ds, size_t num_bdigits, void *words, size_t numwords
                     return ((1 < de - dp || CLEAR_LOWBITS(d, 32) != 0) ? 2 : 1) * sign;
                 }
 #endif
-#if defined(HAVE_UINT64_T) && 8 <= SIZEOF_BDIGIT
+#if defined(HAVE_UINT64_T) && 8 <= SIZEOF_BDIGITS
                 if (wordsize == 8 && (uintptr_t)words % ALIGNOF(uint64_t) == 0) {
                     uint64_t u = (uint64_t)(d = dp[0]);
                     if (need_swap) u = swap64(u);
@@ -698,40 +698,40 @@ bary_pack(int sign, BDIGIT *ds, size_t num_bdigits, void *words, size_t numwords
                     *((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 defined(HAVE_UINT16_T) && 2 <= SIZEOF_BDIGITS
                 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 :
+                    return (wordsize == SIZEOF_BDIGITS && 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 defined(HAVE_UINT32_T) && 4 <= SIZEOF_BDIGITS
                 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 :
+                    return (wordsize == SIZEOF_BDIGITS && 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 defined(HAVE_UINT64_T) && 8 <= SIZEOF_BDIGITS
                 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 :
+                    return (wordsize == SIZEOF_BDIGITS && 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) &&
+        if (nails == 0 && SIZEOF_BDIGITS == 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 src_size = (de - dp) * SIZEOF_BDIGITS;
             size_t dst_size = numwords * wordsize;
             int overflow = 0;
             while (0 < src_size && ((unsigned char *)ds)[src_size-1] == 0)
@@ -759,9 +759,9 @@ bary_pack(int sign, BDIGIT *ds, size_t num_bdigits, void *words, size_t numwords
             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;
+        if (nails == 0 && SIZEOF_BDIGITS == sizeof(BDIGIT) &&
+            wordsize % SIZEOF_BDIGITS == 0 && (uintptr_t)words % ALIGNOF(BDIGIT) == 0) {
+            size_t bdigits_per_word = wordsize / SIZEOF_BDIGITS;
             size_t src_num_bdigits = de - dp;
             size_t dst_num_bdigits = numwords * bdigits_per_word;
             int overflow = 0;
@@ -903,6 +903,8 @@ bary_pack(int sign, BDIGIT *ds, size_t num_bdigits, void *words, size_t numwords
     }
 
     if ((flags & INTEGER_PACK_2COMP) && (sign < 0 && numwords != 0)) {
+        unsigned char *buf;
+
         int word_num_partialbits;
         size_t word_num_fullbytes;
 
@@ -970,7 +972,7 @@ integer_unpack_num_bdigits_small(size_t numwords, size_t wordsize, size_t nails,
 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 */
+    /* BITSPERDIG = SIZEOF_BDIGITS * CHAR_BIT */
     /* num_bits = (wordsize * CHAR_BIT - nails) * numwords */
     /* num_bdigits = (num_bits + BITSPERDIG - 1) / BITSPERDIG */
 
@@ -1067,7 +1069,7 @@ 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) :
+            ((size == SIZEOF_BDIGITS && u == 0) ? -2 : -1) :
             ((u >> (size * CHAR_BIT - 1)) ? -1 : 1);
         if (sign < 0) {
             u |= LSHIFTX(BDIGMAX, size * CHAR_BIT);
@@ -1099,19 +1101,19 @@ bary_unpack_internal(BDIGIT *bdigits, size_t num_bdigits, const void *words, siz
             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 defined(HAVE_UINT16_T) && 2 <= SIZEOF_BDIGITS
             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 defined(HAVE_UINT32_T) && 4 <= SIZEOF_BDIGITS
             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 defined(HAVE_UINT64_T) && 8 <= SIZEOF_BDIGITS
             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);
@@ -1119,11 +1121,11 @@ bary_unpack_internal(BDIGIT *bdigits, size_t num_bdigits, const void *words, siz
 #endif
         }
 #if !defined(WORDS_BIGENDIAN)
-        if (nails == 0 && SIZEOF_BDIGIT == sizeof(BDIGIT) &&
+        if (nails == 0 && SIZEOF_BDIGITS == 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;
+            size_t dst_size = num_bdigits * SIZEOF_BDIGITS;
             MEMCPY(dp, words, char, src_size);
             if (flags & INTEGER_PACK_2COMP) {
                 if (flags & INTEGER_PACK_NEGATIVE) {
@@ -1149,9 +1151,9 @@ bary_unpack_internal(BDIGIT *bdigits, size_t num_bdigits, const void *words, siz
             return sign;
         }
 #endif
-        if (nails == 0 && SIZEOF_BDIGIT == sizeof(BDIGIT) &&
-            wordsize % SIZEOF_BDIGIT == 0) {
-            size_t bdigits_per_word = wordsize / SIZEOF_BDIGIT;
+        if (nails == 0 && SIZEOF_BDIGITS == sizeof(BDIGIT) &&
+            wordsize % SIZEOF_BDIGITS == 0) {
+            size_t bdigits_per_word = wordsize / SIZEOF_BDIGITS;
             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;
@@ -1542,8 +1544,8 @@ bary_mul_normal(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIG
 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));
+    size_t xn = RBIGNUM_LEN(x), yn = RBIGNUM_LEN(y), zn = xn + yn;
+    VALUE z = bignew(zn, RBIGNUM_SIGN(x)==RBIGNUM_SIGN(y));
     bary_mul_normal(BDIGITS(z), zn, BDIGITS(x), xn, BDIGITS(y), yn);
     RB_GC_GUARD(x);
     RB_GC_GUARD(y);
@@ -1611,7 +1613,7 @@ bary_sq_fast(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn)
 VALUE
 rb_big_sq_fast(VALUE x)
 {
-    size_t xn = BIGNUM_LEN(x), zn = 2 * xn;
+    size_t xn = RBIGNUM_LEN(x), zn = 2 * xn;
     VALUE z = bignew(zn, 1);
     bary_sq_fast(BDIGITS(z), zn, BDIGITS(x), xn);
     RB_GC_GUARD(x);
@@ -1653,7 +1655,7 @@ bary_mul_balance_with_mulfunc(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t
             }
             tds = zds + n;
             MEMCPY(wds, zds + n, BDIGIT, xn);
-            mulfunc(tds, tn, xds, xn, yds + n, r, wds+xn, wn-xn);
+            mulfunc(tds, tn, xds, xn, yds + n, r, wds-xn, wn-xn);
             bary_add(zds + n, tn,
                      zds + n, tn,
                      wds, xn);
@@ -1670,8 +1672,8 @@ bary_mul_balance_with_mulfunc(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t
 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));
+    size_t xn = RBIGNUM_LEN(x), yn = RBIGNUM_LEN(y), zn = xn + yn;
+    VALUE z = bignew(zn, RBIGNUM_SIGN(x)==RBIGNUM_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);
@@ -1826,12 +1828,12 @@ bary_mul_karatsuba(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const B
     }
 
     /*
-    if (SIZEOF_BDIGIT * zn <= 16) {
+    if (SIZEOF_BDIGITS * 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]; }
+        for (x = 0, i = xn-1; 0 <= i; i--) { x <<= SIZEOF_BDIGITS*CHAR_BIT; x |= xds[i]; }
+        for (y = 0, i = yn-1; 0 <= i; i--) { y <<= SIZEOF_BDIGITS*CHAR_BIT; y |= yds[i]; }
+        for (z = 0, i = zn-1; 0 <= i; i--) { z <<= SIZEOF_BDIGITS*CHAR_BIT; z |= zds[i]; }
         assert(z == x * y);
     }
     */
@@ -1851,8 +1853,8 @@ bary_mul_karatsuba(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const B
 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));
+    size_t xn = RBIGNUM_LEN(x), yn = RBIGNUM_LEN(y), zn = xn + yn;
+    VALUE z = bignew(zn, RBIGNUM_SIGN(x)==RBIGNUM_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);
@@ -2248,8 +2250,8 @@ bary_mul_toom3(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGI
 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));
+    size_t xn = RBIGNUM_LEN(x), yn = RBIGNUM_LEN(y), zn = xn + yn;
+    VALUE z = bignew(zn, RBIGNUM_SIGN(x)==RBIGNUM_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);
@@ -2262,7 +2264,7 @@ rb_big_mul_toom3(VALUE x, VALUE y)
 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;
+    const size_t nails = (sizeof(BDIGIT)-SIZEOF_BDIGITS)*CHAR_BIT;
     mpz_t x, y, z;
     size_t count;
 
@@ -2289,8 +2291,8 @@ bary_mul_gmp(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT
 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));
+    size_t xn = RBIGNUM_LEN(x), yn = RBIGNUM_LEN(y), zn = xn + yn;
+    VALUE z = bignew(zn, RBIGNUM_SIGN(x)==RBIGNUM_SIGN(y));
     bary_mul_gmp(BDIGITS(z), zn, BDIGITS(x), xn, BDIGITS(y), yn);
     RB_GC_GUARD(x);
     RB_GC_GUARD(y);
@@ -2363,7 +2365,7 @@ bary_mul_precheck(BDIGIT **zdsp, size_t *znp, const BDIGIT **xdsp, size_t *xnp,
         }
         else {
             do {
-                if (yds[0] != 0)
+                if (xds[0] != 0)
                     break;
                 yds++;
                 yn--;
@@ -2490,8 +2492,13 @@ bary_mul_toom3_start(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const
 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_MUL_DIGITS) {
+        if (xn < naive_threshold) {
             if (xds == yds && xn == yn)
                 bary_sq_fast(zds, zn, xds, xn);
             else
@@ -2500,7 +2507,7 @@ bary_mul(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds
         }
     }
     else {
-        if (yn < NAIVE_MUL_DIGITS) {
+        if (yn < naive_threshold) {
             bary_short_mul(zds, zn, yds, yn, xds, xn);
             return;
         }
@@ -2695,7 +2702,7 @@ bary_divmod_normal(BDIGIT *qds, size_t qn, BDIGIT *rds, size_t rn, const BDIGIT
 VALUE
 rb_big_divrem_normal(VALUE x, VALUE y)
 {
-    size_t xn = BIGNUM_LEN(x), yn = BIGNUM_LEN(y), qn, rn;
+    size_t xn = RBIGNUM_LEN(x), yn = RBIGNUM_LEN(y), qn, rn;
     BDIGIT *xds = BDIGITS(x), *yds = BDIGITS(y), *qds, *rds;
     VALUE q, r;
 
@@ -2708,11 +2715,11 @@ rb_big_divrem_normal(VALUE x, VALUE y)
         return rb_assoc_new(LONG2FIX(0), x);
 
     qn = xn + BIGDIVREM_EXTRA_WORDS;
-    q = bignew(qn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+    q = bignew(qn, RBIGNUM_SIGN(x)==RBIGNUM_SIGN(y));
     qds = BDIGITS(q);
 
     rn = yn;
-    r = bignew(rn, BIGNUM_SIGN(x));
+    r = bignew(rn, RBIGNUM_SIGN(x));
     rds = BDIGITS(r);
 
     bary_divmod_normal(qds, qn, rds, rn, xds, xn, yds, yn);
@@ -2730,7 +2737,7 @@ rb_big_divrem_normal(VALUE x, VALUE y)
 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;
+    const size_t nails = (sizeof(BDIGIT)-SIZEOF_BDIGITS)*CHAR_BIT;
     mpz_t x, y, q, r;
     size_t count;
 
@@ -2776,7 +2783,7 @@ bary_divmod_gmp(BDIGIT *qds, size_t qn, BDIGIT *rds, size_t rn, const BDIGIT *xd
 VALUE
 rb_big_divrem_gmp(VALUE x, VALUE y)
 {
-    size_t xn = BIGNUM_LEN(x), yn = BIGNUM_LEN(y), qn, rn;
+    size_t xn = RBIGNUM_LEN(x), yn = RBIGNUM_LEN(y), qn, rn;
     BDIGIT *xds = BDIGITS(x), *yds = BDIGITS(y), *qds, *rds;
     VALUE q, r;
 
@@ -2789,11 +2796,11 @@ rb_big_divrem_gmp(VALUE x, VALUE y)
         return rb_assoc_new(LONG2FIX(0), x);
 
     qn = xn - yn + 1;
-    q = bignew(qn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+    q = bignew(qn, RBIGNUM_SIGN(x)==RBIGNUM_SIGN(y));
     qds = BDIGITS(q);
 
     rn = yn;
-    r = bignew(rn, BIGNUM_SIGN(x));
+    r = bignew(rn, RBIGNUM_SIGN(x));
     rds = BDIGITS(r);
 
     bary_divmod_gmp(qds, qn, rds, rn, xds, xn, yds, yn);
@@ -2873,11 +2880,11 @@ static void
 dump_bignum(VALUE x)
 {
     long i;
-    printf("%c0x0", BIGNUM_SIGN(x) ? '+' : '-');
-    for (i = BIGNUM_LEN(x); i--; ) {
-        printf("_%0*"PRIxBDIGIT, SIZEOF_BDIGIT*2, BDIGITS(x)[i]);
+    printf("%c0x0", RBIGNUM_SIGN(x) ? '+' : '-');
+    for (i = RBIGNUM_LEN(x); i--; ) {
+        printf("_%0*"PRIxBDIGIT, SIZEOF_BDIGITS*2, BDIGITS(x)[i]);
     }
-    printf(", len=%"PRIuSIZE, BIGNUM_LEN(x));
+    printf(", len=%lu", RBIGNUM_LEN(x));
     puts("");
 }
 
@@ -2894,7 +2901,7 @@ rb_big_dump(VALUE x)
 static int
 bigzero_p(VALUE x)
 {
-    return bary_zero_p(BDIGITS(x), BIGNUM_LEN(x));
+    return bary_zero_p(BDIGITS(x), RBIGNUM_LEN(x));
 }
 
 int
@@ -2917,7 +2924,7 @@ rb_cmpint(VALUE val, VALUE a, VALUE b)
     }
     if (RB_BIGNUM_TYPE_P(val)) {
 	if (BIGZEROP(val)) return 0;
-	if (BIGNUM_SIGN(val)) return 1;
+	if (RBIGNUM_SIGN(val)) return 1;
 	return -1;
     }
     if (RTEST(rb_funcall(val, '>', 1, INT2FIX(0)))) return 1;
@@ -2925,31 +2932,31 @@ rb_cmpint(VALUE val, VALUE a, VALUE b)
     return 0;
 }
 
-#define BIGNUM_SET_LEN(b,l) \
-    ((RBASIC(b)->flags & BIGNUM_EMBED_FLAG) ? \
+#define RBIGNUM_SET_LEN(b,l) \
+    ((RBASIC(b)->flags & RBIGNUM_EMBED_FLAG) ? \
      (void)(RBASIC(b)->flags = \
-	    (RBASIC(b)->flags & ~BIGNUM_EMBED_LEN_MASK) | \
-	    ((l) << BIGNUM_EMBED_LEN_SHIFT)) : \
+	    (RBASIC(b)->flags & ~RBIGNUM_EMBED_LEN_MASK) | \
+	    ((l) << RBIGNUM_EMBED_LEN_SHIFT)) : \
      (void)(RBIGNUM(b)->as.heap.len = (l)))
 
 static void
-rb_big_realloc(VALUE big, size_t len)
+rb_big_realloc(VALUE big, long len)
 {
     BDIGIT *ds;
-    if (RBASIC(big)->flags & BIGNUM_EMBED_FLAG) {
-	if (BIGNUM_EMBED_LEN_MAX < len) {
+    if (RBASIC(big)->flags & RBIGNUM_EMBED_FLAG) {
+	if (RBIGNUM_EMBED_LEN_MAX < len) {
 	    ds = ALLOC_N(BDIGIT, len);
-	    MEMCPY(ds, RBIGNUM(big)->as.ary, BDIGIT, BIGNUM_EMBED_LEN_MAX);
-	    RBIGNUM(big)->as.heap.len = BIGNUM_LEN(big);
+	    MEMCPY(ds, RBIGNUM(big)->as.ary, BDIGIT, RBIGNUM_EMBED_LEN_MAX);
+	    RBIGNUM(big)->as.heap.len = RBIGNUM_LEN(big);
 	    RBIGNUM(big)->as.heap.digits = ds;
-	    RBASIC(big)->flags &= ~BIGNUM_EMBED_FLAG;
+	    RBASIC(big)->flags &= ~RBIGNUM_EMBED_FLAG;
 	}
     }
     else {
-	if (len <= BIGNUM_EMBED_LEN_MAX) {
+	if (len <= RBIGNUM_EMBED_LEN_MAX) {
 	    ds = RBIGNUM(big)->as.heap.digits;
-	    RBASIC(big)->flags |= BIGNUM_EMBED_FLAG;
-	    BIGNUM_SET_LEN(big, len);
+	    RBASIC(big)->flags |= RBIGNUM_EMBED_FLAG;
+	    RBIGNUM_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);
@@ -2957,7 +2964,7 @@ rb_big_realloc(VALUE big, size_t len)
 	    }
 	}
 	else {
-	    if (BIGNUM_LEN(big) == 0) {
+	    if (RBIGNUM_LEN(big) == 0) {
 		RBIGNUM(big)->as.heap.digits = ALLOC_N(BDIGIT, len);
 	    }
 	    else {
@@ -2968,20 +2975,20 @@ rb_big_realloc(VALUE big, size_t len)
 }
 
 void
-rb_big_resize(VALUE big, size_t len)
+rb_big_resize(VALUE big, long len)
 {
     rb_big_realloc(big, len);
-    BIGNUM_SET_LEN(big, len);
+    RBIGNUM_SET_LEN(big, len);
 }
 
 static VALUE
-bignew_1(VALUE klass, size_t len, int sign)
+bignew_1(VALUE klass, long len, int sign)
 {
     NEWOBJ_OF(big, struct RBignum, klass, T_BIGNUM | (RGENGC_WB_PROTECTED_BIGNUM ? FL_WB_PROTECTED : 0));
-    BIGNUM_SET_SIGN(big, sign);
-    if (len <= BIGNUM_EMBED_LEN_MAX) {
-	RBASIC(big)->flags |= BIGNUM_EMBED_FLAG;
-	BIGNUM_SET_LEN(big, len);
+    RBIGNUM_SET_SIGN(big, sign?1:0);
+    if (len <= RBIGNUM_EMBED_LEN_MAX) {
+	RBASIC(big)->flags |= RBIGNUM_EMBED_FLAG;
+	RBIGNUM_SET_LEN(big, len);
         (void)VALGRIND_MAKE_MEM_UNDEFINED((void*)RBIGNUM(big)->as.ary, sizeof(RBIGNUM(big)->as.ary));
     }
     else {
@@ -2993,7 +3000,7 @@ bignew_1(VALUE klass, size_t len, int sign)
 }
 
 VALUE
-rb_big_new(size_t len, int sign)
+rb_big_new(long len, int sign)
 {
     return bignew(len, sign != 0);
 }
@@ -3001,8 +3008,8 @@ rb_big_new(size_t len, int sign)
 VALUE
 rb_big_clone(VALUE x)
 {
-    size_t len = BIGNUM_LEN(x);
-    VALUE z = bignew_1(CLASS_OF(x), len, BIGNUM_SIGN(x));
+    long len = RBIGNUM_LEN(x);
+    VALUE z = bignew_1(CLASS_OF(x), len, RBIGNUM_SIGN(x));
 
     MEMCPY(BDIGITS(z), BDIGITS(x), BDIGIT, len);
     return z;
@@ -3011,15 +3018,15 @@ rb_big_clone(VALUE x)
 static void
 big_extend_carry(VALUE x)
 {
-    rb_big_resize(x, BIGNUM_LEN(x)+1);
-    BDIGITS(x)[BIGNUM_LEN(x)-1] = 1;
+    rb_big_resize(x, RBIGNUM_LEN(x)+1);
+    BDIGITS(x)[RBIGNUM_LEN(x)-1] = 1;
 }
 
 /* modify a bignum by 2's complement */
 static void
 get2comp(VALUE x)
 {
-    long i = BIGNUM_LEN(x);
+    long i = RBIGNUM_LEN(x);
     BDIGIT *ds = BDIGITS(x);
 
     if (bary_2comp(ds, i)) {
@@ -3037,13 +3044,13 @@ static BDIGIT
 abs2twocomp(VALUE *xp, long *n_ret)
 {
     VALUE x = *xp;
-    long n = BIGNUM_LEN(x);
+    long n = RBIGNUM_LEN(x);
     BDIGIT *ds = BDIGITS(x);
     BDIGIT hibits = 0;
 
     BARY_TRUNC(ds, n);
 
-    if (n != 0 && BIGNUM_NEGATIVE_P(x)) {
+    if (n != 0 && RBIGNUM_NEGATIVE_P(x)) {
         VALUE z = bignew_1(CLASS_OF(x), n, 0);
         MEMCPY(BDIGITS(z), ds, BDIGIT, n);
         bary_2comp(BDIGITS(z), n);
@@ -3057,7 +3064,7 @@ abs2twocomp(VALUE *xp, long *n_ret)
 static void
 twocomp2abs_bang(VALUE x, int hibits)
 {
-    BIGNUM_SET_SIGN(x, !hibits);
+    RBIGNUM_SET_SIGN(x, !hibits);
     if (hibits) {
         get2comp(x);
     }
@@ -3066,12 +3073,12 @@ twocomp2abs_bang(VALUE x, int hibits)
 static inline VALUE
 bigtrunc(VALUE x)
 {
-    size_t len = BIGNUM_LEN(x);
+    long len = RBIGNUM_LEN(x);
     BDIGIT *ds = BDIGITS(x);
 
     if (len == 0) return x;
     while (--len && !ds[len]);
-    if (BIGNUM_LEN(x) > len+1) {
+    if (RBIGNUM_LEN(x) > len+1) {
 	rb_big_resize(x, len+1);
     }
     return x;
@@ -3080,9 +3087,9 @@ bigtrunc(VALUE x)
 static inline VALUE
 bigfixize(VALUE x)
 {
-    size_t n = BIGNUM_LEN(x);
+    size_t n = RBIGNUM_LEN(x);
     BDIGIT *ds = BDIGITS(x);
-#if SIZEOF_BDIGIT < SIZEOF_LONG
+#if SIZEOF_BDIGITS < SIZEOF_LONG
     unsigned long u;
 #else
     BDIGIT u;
@@ -3092,8 +3099,8 @@ bigfixize(VALUE x)
 
     if (n == 0) return INT2FIX(0);
 
-#if SIZEOF_BDIGIT < SIZEOF_LONG
-    if (sizeof(long)/SIZEOF_BDIGIT < n)
+#if SIZEOF_BDIGITS < SIZEOF_LONG
+    if (sizeof(long)/SIZEOF_BDIGITS < n)
         goto return_big;
     else {
         int i = (int)n;
@@ -3102,14 +3109,14 @@ bigfixize(VALUE x)
             u = (unsigned long)(BIGUP(u) + ds[i]);
         }
     }
-#else /* SIZEOF_BDIGIT >= SIZEOF_LONG */
+#else /* SIZEOF_BDIGITS >= SIZEOF_LONG */
     if (1 < n)
         goto return_big;
     else
         u = ds[0];
 #endif
 
-    if (BIGNUM_POSITIVE_P(x)) {
+    if (RBIGNUM_POSITIVE_P(x)) {
         if (POSFIXABLE(u)) return LONG2FIX((long)u);
     }
     else {
@@ -3143,7 +3150,7 @@ rb_uint2big(VALUE n)
     VALUE big = bignew(bdigit_roomof(SIZEOF_VALUE), 1);
     BDIGIT *digits = BDIGITS(big);
 
-#if SIZEOF_BDIGIT >= SIZEOF_VALUE
+#if SIZEOF_BDIGITS >= SIZEOF_VALUE
     digits[0] = n;
 #else
     for (i = 0; i < bdigit_roomof(SIZEOF_VALUE); i++) {
@@ -3154,7 +3161,7 @@ rb_uint2big(VALUE n)
 
     i = bdigit_roomof(SIZEOF_VALUE);
     while (--i && !digits[i]) ;
-    BIGNUM_SET_LEN(big, i+1);
+    RBIGNUM_SET_LEN(big, i+1);
     return big;
 }
 
@@ -3174,7 +3181,7 @@ rb_int2big(SIGNED_VALUE n)
     }
     big = rb_uint2big(u);
     if (neg) {
-	BIGNUM_SET_NEGATIVE_SIGN(big);
+	RBIGNUM_SET_SIGN(big, 0);
     }
     return big;
 }
@@ -3241,7 +3248,7 @@ rb_absint_size(VALUE val, int *nlz_bits_ret)
         if (v < 0) {
             v = -v;
         }
-#if SIZEOF_BDIGIT >= SIZEOF_LONG
+#if SIZEOF_BDIGITS >= SIZEOF_LONG
         fixbuf[0] = v;
 #else
         {
@@ -3257,7 +3264,7 @@ rb_absint_size(VALUE val, int *nlz_bits_ret)
     }
     else {
         dp = BDIGITS(val);
-        de = dp + BIGNUM_LEN(val);
+        de = dp + RBIGNUM_LEN(val);
     }
     while (dp < de && de[-1] == 0)
         de--;
@@ -3269,7 +3276,7 @@ rb_absint_size(VALUE val, int *nlz_bits_ret)
     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;
+    return (de - dp) * SIZEOF_BDIGITS - num_leading_zeros / CHAR_BIT;
 }
 
 static size_t
@@ -3292,7 +3299,7 @@ absint_numwords_generic(size_t numbytes, int nlz_bits_in_msbyte, size_t word_num
     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 nlz_bits_in_msbyte_bary[1] = { nlz_bits_in_msbyte };
     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)];
@@ -3302,8 +3309,6 @@ absint_numwords_generic(size_t numbytes, int nlz_bits_in_msbyte, size_t word_num
     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)
@@ -3408,7 +3413,7 @@ rb_absint_numwords(VALUE val, size_t word_numbits, size_t *nlz_bits_ret)
  * 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);
+ *   int neg = FIXNUM_P(val) ? FIX2LONG(val) < 0 : RBIGNUM_NEGATIVE_P(val);
  *   size = rb_absint_numwords(val, 1, NULL)
  *   if (size == (size_t)-1) ...overflow...
  *   if (neg && rb_absint_singlebit_p(val))
@@ -3418,7 +3423,7 @@ rb_absint_numwords(VALUE val, size_t word_numbits, size_t *nlz_bits_ret)
  * 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 neg = FIXNUM_P(val) ? FIX2LONG(val) < 0 : RBIGNUM_NEGATIVE_P(val);
  *   int nlz_bits;
  *   size = rb_absint_size(val, &nlz_bits);
  *   if (nlz_bits == 0 && !(neg && rb_absint_singlebit_p(val)))
@@ -3439,7 +3444,7 @@ rb_absint_singlebit_p(VALUE val)
         if (v < 0) {
             v = -v;
         }
-#if SIZEOF_BDIGIT >= SIZEOF_LONG
+#if SIZEOF_BDIGITS >= SIZEOF_LONG
         fixbuf[0] = v;
 #else
         {
@@ -3455,7 +3460,7 @@ rb_absint_singlebit_p(VALUE val)
     }
     else {
         dp = BDIGITS(val);
-        de = dp + BIGNUM_LEN(val);
+        de = dp + RBIGNUM_LEN(val);
     }
     while (dp < de && de[-1] == 0)
         de--;
@@ -3544,7 +3549,7 @@ rb_integer_pack(VALUE val, void *words, size_t numwords, size_t wordsize, size_t
         else {
             sign = 1;
         }
-#if SIZEOF_BDIGIT >= SIZEOF_LONG
+#if SIZEOF_BDIGITS >= SIZEOF_LONG
         fixbuf[0] = v;
 #else
         {
@@ -3559,9 +3564,9 @@ rb_integer_pack(VALUE val, void *words, size_t numwords, size_t wordsize, size_t
         num_bdigits = numberof(fixbuf);
     }
     else {
-        sign = BIGNUM_POSITIVE_P(val) ? 1 : -1;
+        sign = RBIGNUM_POSITIVE_P(val) ? 1 : -1;
         ds = BDIGITS(val);
-        num_bdigits = BIGNUM_LEN(val);
+        num_bdigits = RBIGNUM_LEN(val);
     }
 
     return bary_pack(sign, ds, num_bdigits, words, numwords, wordsize, nails, flags);
@@ -3674,55 +3679,45 @@ rb_integer_unpack(const void *words, size_t numwords, size_t wordsize, size_t na
     }
 
     if ((flags & INTEGER_PACK_FORCE_BIGNUM) && sign != 0 &&
-        bary_zero_p(BDIGITS(val), BIGNUM_LEN(val)))
+        bary_zero_p(BDIGITS(val), RBIGNUM_LEN(val)))
         sign = 0;
-    BIGNUM_SET_SIGN(val, 0 <= sign);
+    RBIGNUM_SET_SIGN(val, 0 <= sign);
 
     if (flags & INTEGER_PACK_FORCE_BIGNUM)
         return bigtrunc(val);
     return bignorm(val);
 }
 
-#define conv_digit(c) (ruby_digit36_to_number_table[(unsigned char)(c)])
-
-NORETURN(static inline void invalid_radix(int base));
-NORETURN(static inline void invalid_integer(VALUE s));
+#define QUAD_SIZE 8
 
-static inline int
-valid_radix_p(int base)
+void
+rb_quad_pack(char *buf, VALUE val)
 {
-    return (1 < base && base <= 36);
+    rb_integer_pack(val, buf, 1, QUAD_SIZE, 0,
+            INTEGER_PACK_NATIVE_BYTE_ORDER|
+            INTEGER_PACK_2COMP);
 }
 
-static inline void
-invalid_radix(int base)
+VALUE
+rb_quad_unpack(const char *buf, int signed_p)
 {
-    rb_raise(rb_eArgError, "invalid radix %d", base);
+    return rb_integer_unpack(buf, 1, QUAD_SIZE, 0,
+            INTEGER_PACK_NATIVE_BYTE_ORDER|
+            (signed_p ? INTEGER_PACK_2COMP : 0));
 }
 
-static inline void
-invalid_integer(VALUE s)
-{
-    rb_raise(rb_eArgError, "invalid value for Integer(): %+"PRIsVALUE, s);
-}
+#define conv_digit(c) (ruby_digit36_to_number_table[(unsigned char)(c)])
 
-static int
-str2big_scan_digits(const char *s, const char *str, int base, int badcheck, size_t *num_digits_p, ssize_t *len_p)
+static void
+str2big_scan_digits(const char *s, const char *str, int base, int badcheck, size_t *num_digits_p, size_t *len_p)
 {
     char nondigit = 0;
     size_t num_digits = 0;
     const char *digits_start = str;
     const char *digits_end = str;
-    ssize_t len = *len_p;
 
     int c;
 
-    if (!len) {
-	*num_digits_p = 0;
-	*len_p = 0;
-	return TRUE;
-    }
-
     if (badcheck && *str == '_') goto bad;
 
     while ((c = *str++) != 0) {
@@ -3732,32 +3727,27 @@ str2big_scan_digits(const char *s, const char *str, int base, int badcheck, size
 		break;
 	    }
 	    nondigit = (char) c;
+	    continue;
 	}
-	else if ((c = conv_digit(c)) < 0 || c >= base) {
+	else if ((c = conv_digit(c)) < 0) {
 	    break;
 	}
-	else {
-	    nondigit = 0;
-	    num_digits++;
-	    digits_end = str;
-	}
-	if (len > 0 && !--len) break;
+	if (c >= base) break;
+	nondigit = 0;
+        num_digits++;
+        digits_end = str;
     }
-    if (badcheck && nondigit) goto bad;
-    if (badcheck && len) {
+    if (badcheck) {
 	str--;
-	while (*str && ISSPACE(*str)) {
-	    str++;
-	    if (len > 0 && !--len) break;
-	}
-	if (len && *str) {
+	if (s+1 < str && str[-1] == '_') goto bad;
+	while (*str && ISSPACE(*str)) str++;
+	if (*str) {
 	  bad:
-	    return FALSE;
+	    rb_invalid_str(s, "Integer()");
 	}
     }
     *num_digits_p = num_digits;
     *len_p = digits_end - digits_start;
-    return TRUE;
 }
 
 static VALUE
@@ -3901,11 +3891,11 @@ str2big_karatsuba(
     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_mul(vds+i, unit*2, BDIGITS(powerv), RBIGNUM_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_mul(vds+i, num_bdigits-i, BDIGITS(powerv), RBIGNUM_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 {
@@ -3938,7 +3928,7 @@ str2big_gmp(
     size_t num_bdigits,
     int base)
 {
-    const size_t nails = (sizeof(BDIGIT)-SIZEOF_BDIGIT)*CHAR_BIT;
+    const size_t nails = (sizeof(BDIGIT)-SIZEOF_BDIGITS)*CHAR_BIT;
     char *buf, *p;
     const char *q;
     VALUE tmps;
@@ -3972,115 +3962,59 @@ str2big_gmp(
 }
 #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)
 {
-    char *end;
-    VALUE ret = rb_cstr_parse_inum(str, -1, (badcheck ? NULL : &end), base);
-    if (NIL_P(ret)) {
-	if (badcheck) rb_invalid_str(str, "Integer()");
-	ret = INT2FIX(0);
-    }
-    return ret;
-}
-
-/*
- * Parse +str+ as Ruby Integer, i.e., underscores, 0d and 0b prefixes.
- *
- * str:  pointer to the string to be parsed.
- *       should be NUL-terminated if +len+ is negative.
- * len:  length of +str+ if >= 0.  if +len+ is negative, +str+ should
- *       be NUL-terminated.
- * endp: if non-NULL, the address after parsed part is stored.  if
- *       NULL, Qnil is returned when +str+ is not valid as an Integer.
- * ndigits: if non-NULL, the number of parsed digits is stored.
- * base: see +rb_cstr_to_inum+
- * flags: bitwise OR of below flags:
- *       RB_INT_PARSE_SIGN: allow preceding spaces and +/- sign
- *       RB_INT_PARSE_UNDERSCORE: allow an underscore between digits
- *       RB_INT_PARSE_PREFIX: allow preceding prefix
- */
-
-VALUE
-rb_int_parse_cstr(const char *str, ssize_t len, char **endp, size_t *ndigits,
-		  int base, int flags)
-{
-    const char *const s = str;
+    const char *s = str;
     char sign = 1;
     int c;
-    VALUE z = Qnil;
+    VALUE z;
 
-    unsigned long val;
-    int ov;
+    int bits_per_digit;
 
     const char *digits_start, *digits_end;
-    size_t num_digits = 0;
+    size_t num_digits;
     size_t num_bdigits;
-    const ssize_t len0 = len;
-    const int badcheck = !endp;
-
-#define ADV(n) do {\
-	if (len > 0 && len <= (n)) goto bad; \
-	str += (n); \
-	len -= (n); \
-    } while (0)
-#define ASSERT_LEN() do {\
-	assert(len != 0); \
-	if (len0 >= 0) assert(s + len0 == str + len); \
-    } while (0)
+    size_t len;
 
     if (!str) {
-      bad:
-	if (endp) *endp = (char *)str;
-	if (ndigits) *ndigits = num_digits;
-	return z;
+	if (badcheck) {
+          bad:
+            rb_invalid_str(s, "Integer()");
+        }
+	return INT2FIX(0);
     }
-    if (len && (flags & RB_INT_PARSE_SIGN)) {
-	while (ISSPACE(*str)) ADV(1);
+    while (ISSPACE(*str)) str++;
 
-	if (str[0] == '+') {
-	    ADV(1);
-	}
-	else if (str[0] == '-') {
-	    ADV(1);
-	    sign = 0;
-	}
-	ASSERT_LEN();
+    if (str[0] == '+') {
+	str++;
+    }
+    else if (str[0] == '-') {
+	str++;
+	sign = 0;
+    }
+    if (str[0] == '+' || str[0] == '-') {
+	if (badcheck) goto bad;
+	return INT2FIX(0);
     }
     if (base <= 0) {
-	if (str[0] == '0' && len > 1) {
+	if (str[0] == '0') {
 	    switch (str[1]) {
 	      case 'x': case 'X':
 		base = 16;
-		ADV(2);
+                str += 2;
 		break;
 	      case 'b': case 'B':
 		base = 2;
-		ADV(2);
+                str += 2;
 		break;
 	      case 'o': case 'O':
 		base = 8;
-		ADV(2);
+                str += 2;
 		break;
 	      case 'd': case 'D':
 		base = 10;
-		ADV(2);
+                str += 2;
 		break;
 	      default:
 		base = 8;
@@ -4093,75 +4027,57 @@ rb_int_parse_cstr(const char *str, ssize_t len, char **endp, size_t *ndigits,
 	    base = 10;
 	}
     }
-    else if (len == 1 || !(flags & RB_INT_PARSE_PREFIX)) {
-	/* no prefix */
-    }
     else if (base == 2) {
 	if (str[0] == '0' && (str[1] == 'b'||str[1] == 'B')) {
-	    ADV(2);
+	    str += 2;
 	}
     }
     else if (base == 8) {
 	if (str[0] == '0' && (str[1] == 'o'||str[1] == 'O')) {
-	    ADV(2);
+	    str += 2;
 	}
     }
     else if (base == 10) {
 	if (str[0] == '0' && (str[1] == 'd'||str[1] == 'D')) {
-	    ADV(2);
+	    str += 2;
 	}
     }
     else if (base == 16) {
 	if (str[0] == '0' && (str[1] == 'x'||str[1] == 'X')) {
-	    ADV(2);
+	    str += 2;
 	}
     }
-    if (!valid_radix_p(base)) {
-        invalid_radix(base);
+    if (base < 2 || 36 < base) {
+        rb_raise(rb_eArgError, "invalid radix %d", base);
     }
-    if (!len) goto bad;
-    num_digits = str - s;
-    if (*str == '0' && len != 1) { /* squeeze preceding 0s */
+    if (*str == '0') {		/* squeeze preceding 0s */
 	int us = 0;
-	const char *end = len < 0 ? NULL : str + len;
-	++num_digits;
-	while ((c = *++str) == '0' ||
-	       ((flags & RB_INT_PARSE_UNDERSCORE) && c == '_')) {
+	while ((c = *++str) == '0' || c == '_') {
 	    if (c == '_') {
 		if (++us >= 2)
 		    break;
-	    }
-	    else {
-		++num_digits;
+	    } else
 		us = 0;
-	    }
-	    if (str == end) break;
 	}
-	if (!c || ISSPACE(c)) --str;
-	if (end) len = end - str;
-	ASSERT_LEN();
+	if (!(c = *str) || ISSPACE(c)) --str;
     }
     c = *str;
     c = conv_digit(c);
     if (c < 0 || c >= base) {
-	if (!badcheck && num_digits) z = INT2FIX(0);
-	goto bad;
-    }
-
-    if (ndigits) *ndigits = num_digits;
-    val = ruby_scan_digits(str, len, base, &num_digits, &ov);
-    if (!ov) {
-	const char *end = &str[num_digits];
-	if (num_digits > 0 && *end == '_' && (flags & RB_INT_PARSE_UNDERSCORE))
-	    goto bigparse;
-	if (endp) *endp = (char *)end;
-	if (ndigits) *ndigits += num_digits;
+	if (badcheck) goto bad;
+	return INT2FIX(0);
+    }
+
+    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;
 	if (badcheck) {
-	    if (num_digits == 0) return Qnil; /* no number */
-	    while (len < 0 ? *end : end < str + len) {
-		if (!ISSPACE(*end)) return Qnil; /* trailing garbage */
-		end++;
-	    }
+	    if (end == str) goto bad; /* no number */
+	    while (*end && ISSPACE(*end)) end++;
+	    if (*end) goto bad;	      /* trailing garbage */
 	}
 
 	if (POSFIXABLE(val)) {
@@ -4173,22 +4089,19 @@ rb_int_parse_cstr(const char *str, ssize_t len, char **endp, size_t *ndigits,
 	}
 	else {
 	    VALUE big = rb_uint2big(val);
-	    BIGNUM_SET_SIGN(big, sign);
+	    RBIGNUM_SET_SIGN(big, sign);
 	    return bignorm(big);
 	}
     }
 
   bigparse:
     digits_start = str;
-    if (!str2big_scan_digits(s, str, base, badcheck, &num_digits, &len))
-	goto bad;
-    if (endp) *endp = (char *)(str + len);
-    if (ndigits) *ndigits += num_digits;
+    str2big_scan_digits(s, str, base, badcheck, &num_digits, &len);
     digits_end = digits_start + len;
 
     if (POW2_P(base)) {
         z = str2big_poweroftwo(sign, digits_start, digits_end, num_digits,
-			       bit_length(base-1));
+                bits_per_digit);
     }
     else {
         int digits_per_bdigits_dbl;
@@ -4216,28 +4129,34 @@ rb_int_parse_cstr(const char *str, ssize_t len, char **endp, size_t *ndigits,
 }
 
 VALUE
-rb_cstr_parse_inum(const char *str, ssize_t len, char **endp, int base)
-{
-    return rb_int_parse_cstr(str, len, endp, NULL, base,
-			     RB_INT_PARSE_DEFAULT);
-}
-
-VALUE
 rb_str_to_inum(VALUE str, int base, int badcheck)
 {
-    VALUE ret;
-    const char *s;
+    char *s;
     long len;
-    char *end;
+    VALUE v = 0;
+    VALUE ret;
 
     StringValue(str);
     rb_must_asciicompat(str);
-    RSTRING_GETMEM(str, s, len);
-    ret = rb_cstr_parse_inum(s, len, (badcheck ? NULL : &end), base);
-    if (NIL_P(ret)) {
-	if (badcheck) invalid_integer(str);
-	ret = INT2FIX(0);
+    if (badcheck) {
+	s = StringValueCStr(str);
+    }
+    else {
+	s = RSTRING_PTR(str);
+    }
+    if (s) {
+	len = RSTRING_LEN(str);
+	if (s[len]) {		/* no sentinel somehow */
+	    char *p = ALLOCV(v, len+1);
+
+	    MEMCPY(p, s, char, len);
+	    p[len] = '\0';
+	    s = p;
+	}
     }
+    ret = rb_cstr_to_inum(s, base, badcheck);
+    if (v)
+	ALLOCV_END(v);
     return ret;
 }
 
@@ -4248,25 +4167,22 @@ rb_str2big_poweroftwo(VALUE arg, int base, int badcheck)
     const char *s, *str;
     const char *digits_start, *digits_end;
     size_t num_digits;
-    ssize_t len;
+    size_t len;
     VALUE z;
 
-    if (!valid_radix_p(base) || !POW2_P(base)) {
-        invalid_radix(base);
+    if (base < 2 || 36 < base || !POW2_P(base)) {
+        rb_raise(rb_eArgError, "invalid radix %d", base);
     }
 
     rb_must_asciicompat(arg);
     s = str = StringValueCStr(arg);
-    len = RSTRING_LEN(arg);
     if (*str == '-') {
-	len--;
         str++;
         positive_p = 0;
     }
 
     digits_start = str;
-    if (!str2big_scan_digits(s, str, base, badcheck, &num_digits, &len))
-	invalid_integer(arg);
+    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,
@@ -4284,28 +4200,25 @@ rb_str2big_normal(VALUE arg, int base, int badcheck)
     const char *s, *str;
     const char *digits_start, *digits_end;
     size_t num_digits;
-    ssize_t len;
+    size_t len;
     VALUE z;
 
     int digits_per_bdigits_dbl;
     size_t num_bdigits;
 
-    if (!valid_radix_p(base)) {
-        invalid_radix(base);
+    if (base < 2 || 36 < base) {
+        rb_raise(rb_eArgError, "invalid radix %d", base);
     }
 
     rb_must_asciicompat(arg);
-    s = str = StringValuePtr(arg);
-    len = RSTRING_LEN(arg);
-    if (len > 0 && *str == '-') {
-	len--;
+    s = str = StringValueCStr(arg);
+    if (*str == '-') {
         str++;
         positive_p = 0;
     }
 
     digits_start = str;
-    if (!str2big_scan_digits(s, str, base, badcheck, &num_digits, &len))
-	invalid_integer(arg);
+    str2big_scan_digits(s, str, base, badcheck, &num_digits, &len);
     digits_end = digits_start + len;
 
     maxpow_in_bdigit_dbl(base, &digits_per_bdigits_dbl);
@@ -4326,28 +4239,25 @@ rb_str2big_karatsuba(VALUE arg, int base, int badcheck)
     const char *s, *str;
     const char *digits_start, *digits_end;
     size_t num_digits;
-    ssize_t len;
+    size_t len;
     VALUE z;
 
     int digits_per_bdigits_dbl;
     size_t num_bdigits;
 
-    if (!valid_radix_p(base)) {
-        invalid_radix(base);
+    if (base < 2 || 36 < base) {
+        rb_raise(rb_eArgError, "invalid radix %d", base);
     }
 
     rb_must_asciicompat(arg);
-    s = str = StringValuePtr(arg);
-    len = RSTRING_LEN(arg);
-    if (len > 0 && *str == '-') {
-	len--;
+    s = str = StringValueCStr(arg);
+    if (*str == '-') {
         str++;
         positive_p = 0;
     }
 
     digits_start = str;
-    if (!str2big_scan_digits(s, str, base, badcheck, &num_digits, &len))
-	invalid_integer(arg);
+    str2big_scan_digits(s, str, base, badcheck, &num_digits, &len);
     digits_end = digits_start + len;
 
     maxpow_in_bdigit_dbl(base, &digits_per_bdigits_dbl);
@@ -4369,28 +4279,25 @@ rb_str2big_gmp(VALUE arg, int base, int badcheck)
     const char *s, *str;
     const char *digits_start, *digits_end;
     size_t num_digits;
-    ssize_t len;
+    size_t len;
     VALUE z;
 
     int digits_per_bdigits_dbl;
     size_t num_bdigits;
 
-    if (!valid_radix_p(base)) {
-        invalid_radix(base);
+    if (base < 2 || 36 < base) {
+        rb_raise(rb_eArgError, "invalid radix %d", base);
     }
 
     rb_must_asciicompat(arg);
-    s = str = StringValuePtr(arg);
-    len = RSTRING_LEN(arg);
-    if (len > 0 && *str == '-') {
-	len--;
+    s = str = StringValueCStr(arg);
+    if (*str == '-') {
         str++;
         positive_p = 0;
     }
 
     digits_start = str;
-    if (!str2big_scan_digits(s, str, base, badcheck, &num_digits, &len))
-	invalid_integer(arg);
+    str2big_scan_digits(s, str, base, badcheck, &num_digits, &len);
     digits_end = digits_start + len;
 
     maxpow_in_bdigit_dbl(base, &digits_per_bdigits_dbl);
@@ -4413,7 +4320,7 @@ rb_ull2big(unsigned LONG_LONG n)
     VALUE big = bignew(bdigit_roomof(SIZEOF_LONG_LONG), 1);
     BDIGIT *digits = BDIGITS(big);
 
-#if SIZEOF_BDIGIT >= SIZEOF_LONG_LONG
+#if SIZEOF_BDIGITS >= SIZEOF_LONG_LONG
     digits[0] = n;
 #else
     for (i = 0; i < bdigit_roomof(SIZEOF_LONG_LONG); i++) {
@@ -4424,7 +4331,7 @@ rb_ull2big(unsigned LONG_LONG n)
 
     i = bdigit_roomof(SIZEOF_LONG_LONG);
     while (i-- && !digits[i]) ;
-    BIGNUM_SET_LEN(big, i+1);
+    RBIGNUM_SET_LEN(big, i+1);
     return big;
 }
 
@@ -4444,7 +4351,7 @@ rb_ll2big(LONG_LONG n)
     }
     big = rb_ull2big(u);
     if (neg) {
-	BIGNUM_SET_NEGATIVE_SIGN(big);
+	RBIGNUM_SET_SIGN(big, 0);
     }
     return big;
 }
@@ -4465,46 +4372,6 @@ rb_ll2inum(LONG_LONG n)
 
 #endif  /* HAVE_LONG_LONG */
 
-#ifdef HAVE_INT128_T
-static VALUE
-rb_uint128t2big(uint128_t n)
-{
-    long i;
-    VALUE big = bignew(bdigit_roomof(SIZEOF_INT128_T), 1);
-    BDIGIT *digits = BDIGITS(big);
-
-    for (i = 0; i < bdigit_roomof(SIZEOF_INT128_T); i++) {
-	digits[i] = BIGLO(RSHIFT(n ,BITSPERDIG*i));
-    }
-
-    i = bdigit_roomof(SIZEOF_INT128_T);
-    while (i-- && !digits[i]) ;
-    BIGNUM_SET_LEN(big, i+1);
-    return big;
-}
-
-VALUE
-rb_int128t2big(int128_t n)
-{
-    int neg = 0;
-    uint128_t u;
-    VALUE big;
-
-    if (n < 0) {
-        u = 1 + (uint128_t)(-(n + 1)); /* u = -n avoiding overflow */
-	neg = 1;
-    }
-    else {
-        u = n;
-    }
-    big = rb_uint128t2big(u);
-    if (neg) {
-	BIGNUM_SET_NEGATIVE_SIGN(big);
-    }
-    return big;
-}
-#endif
-
 VALUE
 rb_cstr2inum(const char *str, int base)
 {
@@ -4532,8 +4399,8 @@ big_shift3(VALUE x, int lshift_p, size_t shift_numdigits, int shift_numbits)
         }
         s1 = shift_numdigits;
         s2 = shift_numbits;
-        xn = BIGNUM_LEN(x);
-        z = bignew(xn+s1+1, BIGNUM_SIGN(x));
+        xn = RBIGNUM_LEN(x);
+        z = bignew(xn+s1+1, RBIGNUM_SIGN(x));
         zds = BDIGITS(z);
         BDIGITS_ZERO(zds, s1);
         xds = BDIGITS(x);
@@ -4542,9 +4409,9 @@ big_shift3(VALUE x, int lshift_p, size_t shift_numdigits, int shift_numbits)
     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)))
+        if (LONG_MAX < shift_numdigits || (size_t)RBIGNUM_LEN(x) <= shift_numdigits) {
+            if (RBIGNUM_POSITIVE_P(x) ||
+                bary_zero_p(BDIGITS(x), RBIGNUM_LEN(x)))
                 return INT2FIX(0);
             else
                 return INT2FIX(-1);
@@ -4591,7 +4458,7 @@ big_shift2(VALUE x, int lshift_p, VALUE y)
     }
     else {
         if (1 < sign || CHAR_BIT <= lens[1])
-            return BIGNUM_POSITIVE_P(x) ? INT2FIX(0) : INT2FIX(-1);
+            return RBIGNUM_POSITIVE_P(x) ? INT2FIX(0) : INT2FIX(-1);
     }
     shift_numbits = (int)(lens[0] & (BITSPERDIG-1));
     shift_numdigits = (lens[0] >> bit_length(BITSPERDIG-1)) |
@@ -4675,6 +4542,61 @@ power_cache_get_power(int base, int power_level, size_t *numdigits_ret)
     return base36_power_cache[base - 2][power_level];
 }
 
+/*
+ * deprecated.  (used only from deprecated rb_big2str0)
+ *
+ * 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 (base < 2 || 36 < base)
+	rb_bug("invalid radix %d", base);
+
+    if (FIXNUM_P(x)) {
+	bits = (SIZEOF_LONG*CHAR_BIT - 1)/2 + 1;
+    }
+    else if (BIGZEROP(x)) {
+	return 0;
+    }
+    else if (RBIGNUM_LEN(x) >= LONG_MAX/BITSPERDIG) {
+	rb_raise(rb_eRangeError, "bignum too big to convert into `string'");
+    }
+    else {
+	bits = BITSPERDIG*RBIGNUM_LEN(x);
+    }
+
+    /* @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]);
+}
+
 struct big2str_struct {
     int negative;
     int base;
@@ -4713,9 +4635,8 @@ big2str_2bdigits(struct big2str_struct *b2s, BDIGIT *xds, size_t xn, size_t tail
         p = buf;
         j = sizeof(buf);
         do {
-            BDIGIT_DBL idx = num % b2s->base;
+            p[--j] = ruby_digitmap[num % b2s->base];
             num /= b2s->base;
-            p[--j] = ruby_digitmap[idx];
         } while (num);
         len = sizeof(buf) - j;
         big2str_alloc(b2s, len + taillen);
@@ -4725,9 +4646,8 @@ big2str_2bdigits(struct big2str_struct *b2s, BDIGIT *xds, size_t xn, size_t tail
         p = b2s->ptr;
         j = b2s->hbase2_numdigits;
         do {
-            BDIGIT_DBL idx = num % b2s->base;
+            p[--j] = ruby_digitmap[num % b2s->base];
             num /= b2s->base;
-            p[--j] = ruby_digitmap[idx];
         } while (j);
         len = b2s->hbase2_numdigits;
     }
@@ -4782,7 +4702,7 @@ big2str_karatsuba(struct big2str_struct *b2s, BDIGIT *xds, size_t xn, size_t wn,
 
     lower_power_level = power_level-1;
     b = power_cache_get_power(b2s->base, lower_power_level, &lower_numdigits);
-    bn = BIGNUM_LEN(b);
+    bn = RBIGNUM_LEN(b);
     bds = BDIGITS(b);
 
     half_numdigits = lower_numdigits;
@@ -4792,7 +4712,7 @@ big2str_karatsuba(struct big2str_struct *b2s, BDIGIT *xds, size_t xn, size_t wn,
              (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);
+        bn = RBIGNUM_LEN(b);
         bds = BDIGITS(b);
     }
 
@@ -4865,12 +4785,12 @@ big2str_base_poweroftwo(VALUE x, int base)
     VALUE result;
     char *ptr;
     numwords = rb_absint_numwords(x, word_numbits, NULL);
-    if (BIGNUM_NEGATIVE_P(x)) {
+    if (RBIGNUM_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) ? '+' : '-';
+        *ptr++ = RBIGNUM_POSITIVE_P(x) ? '+' : '-';
     }
     else {
         if (LONG_MAX < numwords)
@@ -4904,15 +4824,15 @@ big2str_generic(VALUE x, int base)
     VALUE power;
 
     xds = BDIGITS(x);
-    xn = BIGNUM_LEN(x);
+    xn = RBIGNUM_LEN(x);
     BARY_TRUNC(xds, xn);
 
     if (xn == 0) {
 	return rb_usascii_str_new2("0");
     }
 
-    if (!valid_radix_p(base))
-	invalid_radix(base);
+    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'");
@@ -4921,13 +4841,13 @@ big2str_generic(VALUE x, int base)
     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) {
+           (size_t)RBIGNUM_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) {
+    if ((size_t)RBIGNUM_LEN(power) <= xn) {
         /*
          * This increment guarantees x < power_cache_get_power(base, power_level)
          * without invoking it actually.
@@ -4941,7 +4861,7 @@ big2str_generic(VALUE x, int base)
         power_level++;
     }
 
-    b2s_data.negative = BIGNUM_NEGATIVE_P(x);
+    b2s_data.negative = RBIGNUM_NEGATIVE_P(x);
     b2s_data.base = base;
     b2s_data.hbase2 = maxpow_in_bdigit_dbl(base, &b2s_data.hbase2_numdigits);
 
@@ -4955,7 +4875,7 @@ big2str_generic(VALUE x, int base)
         VALUE tmpw = 0;
         BDIGIT *wds;
         size_t wn;
-        wn = power_level * BIGDIVREM_EXTRA_WORDS + BIGNUM_LEN(power);
+        wn = power_level * BIGDIVREM_EXTRA_WORDS + RBIGNUM_LEN(power);
         wds = ALLOCV_N(BDIGIT, tmpw, xn + wn);
         MEMCPY(wds, xds, BDIGIT, xn);
 	big2str_karatsuba(&b2s_data, wds, xn, wn, power_level, 0);
@@ -4978,22 +4898,22 @@ rb_big2str_generic(VALUE x, int base)
 }
 
 #ifdef USE_GMP
-static VALUE
+VALUE
 big2str_gmp(VALUE x, int base)
 {
-    const size_t nails = (sizeof(BDIGIT)-SIZEOF_BDIGIT)*CHAR_BIT;
+    const size_t nails = (sizeof(BDIGIT)-SIZEOF_BDIGITS)*CHAR_BIT;
     mpz_t mx;
     size_t size;
     VALUE str;
     BDIGIT *xds = BDIGITS(x);
-    size_t xn = BIGNUM_LEN(x);
+    size_t xn = RBIGNUM_LEN(x);
 
     mpz_init(mx);
     mpz_import(mx, xn, -1, sizeof(BDIGIT), 0, nails, xds);
 
     size = mpz_sizeinbase(mx, base);
 
-    if (BIGNUM_NEGATIVE_P(x)) {
+    if (RBIGNUM_NEGATIVE_P(x)) {
         mpz_neg(mx, mx);
         str = rb_usascii_str_new(0, size+1);
     }
@@ -5030,15 +4950,15 @@ rb_big2str1(VALUE x, int base)
 
     bigtrunc(x);
     xds = BDIGITS(x);
-    xn = BIGNUM_LEN(x);
+    xn = RBIGNUM_LEN(x);
     BARY_TRUNC(xds, xn);
 
     if (xn == 0) {
 	return rb_usascii_str_new2("0");
     }
 
-    if (!valid_radix_p(base))
-	invalid_radix(base);
+    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'");
@@ -5058,16 +4978,80 @@ rb_big2str1(VALUE x, int base)
     return big2str_generic(x, base);
 }
 
+/* deprecated */
+VALUE
+rb_big2str0(VALUE x, int base, int trim)
+{
+    VALUE str;
+    long oldlen;
+    long n2;
+
+    str = rb_big2str1(x, base);
+
+    if (trim || FIXNUM_P(x) || BIGZEROP(x))
+        return str;
+
+    oldlen = RSTRING_LEN(str);
+    if (oldlen && RSTRING_PTR(str)[0] != '-') {
+        rb_str_resize(str, oldlen+1);
+        MEMMOVE(RSTRING_PTR(str)+1, RSTRING_PTR(str), char, oldlen);
+        RSTRING_PTR(str)[0] = '+';
+    }
+
+    n2 = big2str_find_n1(x, base);
+
+    oldlen = RSTRING_LEN(str);
+    if (oldlen-1 < n2) {
+        long off = n2 - (oldlen-1);
+        rb_str_resize(str, n2+1);
+        MEMMOVE(RSTRING_PTR(str)+1+off, RSTRING_PTR(str)+1, char, oldlen-1);
+        memset(RSTRING_PTR(str)+1, '0', off);
+    }
+
+    RSTRING_PTR(str)[RSTRING_LEN(str)] = '\0';
+
+    return str;
+}
+
 VALUE
 rb_big2str(VALUE x, int base)
 {
     return rb_big2str1(x, base);
 }
 
+/*
+ *  call-seq:
+ *     big.to_s(base=10)   ->  string
+ *
+ *  Returns a string containing the representation of <i>big</i> radix
+ *  <i>base</i> (2 through 36).
+ *
+ *     12345654321.to_s         #=> "12345654321"
+ *     12345654321.to_s(2)      #=> "1011011111110110111011110000110001"
+ *     12345654321.to_s(8)      #=> "133766736061"
+ *     12345654321.to_s(16)     #=> "2dfdbbc31"
+ *     78546939656932.to_s(36)  #=> "rubyrules"
+ */
+
+static VALUE
+rb_big_to_s(int argc, VALUE *argv, VALUE x)
+{
+    int base;
+
+    if (argc == 0) base = 10;
+    else {
+	VALUE b;
+
+	rb_scan_args(argc, argv, "01", &b);
+	base = NUM2INT(b);
+    }
+    return rb_big2str(x, base);
+}
+
 static unsigned long
 big2ulong(VALUE x, const char *type)
 {
-    size_t len = BIGNUM_LEN(x);
+    long len = RBIGNUM_LEN(x);
     unsigned long num;
     BDIGIT *ds;
 
@@ -5077,7 +5061,7 @@ big2ulong(VALUE x, const char *type)
         rb_raise(rb_eRangeError, "bignum too big to convert into `%s'", type);
     }
     ds = BDIGITS(x);
-#if SIZEOF_LONG <= SIZEOF_BDIGIT
+#if SIZEOF_LONG <= SIZEOF_BDIGITS
     num = (unsigned long)ds[0];
 #else
     num = 0;
@@ -5089,33 +5073,47 @@ big2ulong(VALUE x, const char *type)
     return num;
 }
 
-unsigned long
+/* deprecated */
+VALUE
+rb_big2ulong_pack(VALUE x)
+{
+    unsigned long num;
+    rb_integer_pack(x, &num, 1, sizeof(num), 0,
+        INTEGER_PACK_NATIVE_BYTE_ORDER|INTEGER_PACK_2COMP);
+    return num;
+}
+
+VALUE
 rb_big2ulong(VALUE x)
 {
     unsigned long num = big2ulong(x, "unsigned long");
 
-    if (BIGNUM_POSITIVE_P(x)) {
+    if (RBIGNUM_POSITIVE_P(x)) {
         return num;
     }
     else {
-        if (num <= 1+(unsigned long)(-(LONG_MIN+1)))
-            return -(long)(num-1)-1;
+        if (num <= LONG_MAX)
+            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");
 }
 
-long
+SIGNED_VALUE
 rb_big2long(VALUE x)
 {
     unsigned long num = big2ulong(x, "long");
 
-    if (BIGNUM_POSITIVE_P(x)) {
+    if (RBIGNUM_POSITIVE_P(x)) {
         if (num <= LONG_MAX)
             return num;
     }
     else {
-        if (num <= 1+(unsigned long)(-(LONG_MIN+1)))
-            return -(long)(num-1)-1;
+        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'");
 }
@@ -5125,7 +5123,7 @@ rb_big2long(VALUE x)
 static unsigned LONG_LONG
 big2ull(VALUE x, const char *type)
 {
-    size_t len = BIGNUM_LEN(x);
+    long len = RBIGNUM_LEN(x);
     unsigned LONG_LONG num;
     BDIGIT *ds = BDIGITS(x);
 
@@ -5133,7 +5131,7 @@ big2ull(VALUE x, const char *type)
         return 0;
     if (BIGSIZE(x) > SIZEOF_LONG_LONG)
 	rb_raise(rb_eRangeError, "bignum too big to convert into `%s'", type);
-#if SIZEOF_LONG_LONG <= SIZEOF_BDIGIT
+#if SIZEOF_LONG_LONG <= SIZEOF_BDIGITS
     num = (unsigned LONG_LONG)ds[0];
 #else
     num = 0;
@@ -5150,12 +5148,14 @@ rb_big2ull(VALUE x)
 {
     unsigned LONG_LONG num = big2ull(x, "unsigned long long");
 
-    if (BIGNUM_POSITIVE_P(x)) {
+    if (RBIGNUM_POSITIVE_P(x)) {
         return num;
     }
     else {
-        if (num <= 1+(unsigned LONG_LONG)(-(LLONG_MIN+1)))
-            return -(LONG_LONG)(num-1)-1;
+        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 out of range of unsigned long long");
 }
@@ -5165,13 +5165,15 @@ rb_big2ll(VALUE x)
 {
     unsigned LONG_LONG num = big2ull(x, "long long");
 
-    if (BIGNUM_POSITIVE_P(x)) {
+    if (RBIGNUM_POSITIVE_P(x)) {
         if (num <= LLONG_MAX)
             return num;
     }
     else {
-        if (num <= 1+(unsigned LONG_LONG)(-(LLONG_MIN+1)))
-            return -(LONG_LONG)(num-1)-1;
+        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'");
 }
@@ -5220,7 +5222,7 @@ static double
 big2dbl(VALUE x)
 {
     double d = 0.0;
-    long i = (bigtrunc(x), BIGNUM_LEN(x)), lo = 0, bits;
+    long i = (bigtrunc(x), RBIGNUM_LEN(x)), lo = 0, bits;
     BDIGIT *ds = BDIGITS(x), dl;
 
     if (i) {
@@ -5262,7 +5264,7 @@ big2dbl(VALUE x)
 	    }
 	}
     }
-    if (BIGNUM_NEGATIVE_P(x)) d = -d;
+    if (!RBIGNUM_SIGN(x)) d = -d;
     return d;
 }
 
@@ -5281,6 +5283,21 @@ rb_big2dbl(VALUE x)
     return d;
 }
 
+/*
+ *  call-seq:
+ *     big.to_f -> float
+ *
+ *  Converts <i>big</i> to a <code>Float</code>. If <i>big</i> doesn't
+ *  fit in a <code>Float</code>, the result is infinity.
+ *
+ */
+
+static VALUE
+rb_big_to_f(VALUE x)
+{
+    return DBL2NUM(rb_big2dbl(x));
+}
+
 VALUE
 rb_integer_float_cmp(VALUE x, VALUE y)
 {
@@ -5363,32 +5380,43 @@ rb_integer_float_eq(VALUE x, VALUE y)
     return rb_big_eq(x, y);
 }
 
+/*
+ *  call-seq:
+ *     big <=> numeric   -> -1, 0, +1 or nil
+ *
+ *  Comparison---Returns -1, 0, or +1 depending on whether +big+ is
+ *  less than, equal to, or greater than +numeric+. This is the
+ *  basis for the tests in Comparable.
+ *
+ *  +nil+ is returned if the two values are incomparable.
+ *
+ */
+
 VALUE
 rb_big_cmp(VALUE x, VALUE y)
 {
+    int cmp;
+
     if (FIXNUM_P(y)) {
-	x = bigfixize(x);
-        if (FIXNUM_P(x)) {
-	    /* SIGNED_VALUE and Fixnum have same sign-bits, same
-	     * order */
-	    SIGNED_VALUE sx = (SIGNED_VALUE)x, sy = (SIGNED_VALUE)y;
-	    if (sx < sy) return INT2FIX(-1);
-	    return INT2FIX(sx > sy);
-        }
+	y = rb_int2big(FIX2LONG(y));
     }
     else if (RB_BIGNUM_TYPE_P(y)) {
-	if (BIGNUM_SIGN(x) == BIGNUM_SIGN(y)) {
-	    int cmp = bary_cmp(BDIGITS(x), BIGNUM_LEN(x), BDIGITS(y), BIGNUM_LEN(y));
-	    return INT2FIX(BIGNUM_SIGN(x) ? cmp : -cmp);
-	}
     }
     else if (RB_FLOAT_TYPE_P(y)) {
         return rb_integer_float_cmp(x, y);
     }
     else {
-	return rb_num_coerce_cmp(x, y, idCmp);
+	return rb_num_coerce_cmp(x, y, rb_intern("<=>"));
     }
-    return INT2FIX(BIGNUM_SIGN(x) ? 1 : -1);
+
+    if (RBIGNUM_SIGN(x) > RBIGNUM_SIGN(y)) return INT2FIX(1);
+    if (RBIGNUM_SIGN(x) < RBIGNUM_SIGN(y)) return INT2FIX(-1);
+
+    cmp = bary_cmp(BDIGITS(x), RBIGNUM_LEN(x), BDIGITS(y), RBIGNUM_LEN(y));
+    if (RBIGNUM_SIGN(x))
+        return INT2FIX(cmp);
+    else
+        return INT2FIX(-cmp);
 }
 
 enum big_op_t {
@@ -5404,7 +5432,7 @@ big_op(VALUE x, VALUE y, enum big_op_t op)
     VALUE rel;
     int n;
 
-    if (RB_INTEGER_TYPE_P(y)) {
+    if (FIXNUM_P(y) || RB_BIGNUM_TYPE_P(y)) {
 	rel = rb_big_cmp(x, y);
     }
     else if (RB_FLOAT_TYPE_P(y)) {
@@ -5414,9 +5442,9 @@ big_op(VALUE x, VALUE y, enum big_op_t op)
 	ID id = 0;
 	switch (op) {
 	  case big_op_gt: id = '>'; break;
-	  case big_op_ge: id = idGE; break;
+	  case big_op_ge: id = rb_intern(">="); break;
 	  case big_op_lt: id = '<'; break;
-	  case big_op_le: id = idLE; break;
+	  case big_op_le: id = rb_intern("<="); break;
 	}
 	return rb_num_coerce_relop(x, y, id);
     }
@@ -5433,26 +5461,58 @@ big_op(VALUE x, VALUE y, enum big_op_t op)
     return Qundef;
 }
 
-VALUE
-rb_big_gt(VALUE x, VALUE y)
+/*
+ * call-seq:
+ *   big > real  ->  true or false
+ *
+ * Returns <code>true</code> if the value of <code>big</code> is
+ * greater than that of <code>real</code>.
+ */
+
+static VALUE
+big_gt(VALUE x, VALUE y)
 {
     return big_op(x, y, big_op_gt);
 }
 
-VALUE
-rb_big_ge(VALUE x, VALUE y)
+/*
+ * call-seq:
+ *   big >= real  ->  true or false
+ *
+ * Returns <code>true</code> if the value of <code>big</code> is
+ * greater than or equal to that of <code>real</code>.
+ */
+
+static VALUE
+big_ge(VALUE x, VALUE y)
 {
     return big_op(x, y, big_op_ge);
 }
 
-VALUE
-rb_big_lt(VALUE x, VALUE y)
+/*
+ * call-seq:
+ *   big < real  ->  true or false
+ *
+ * Returns <code>true</code> if the value of <code>big</code> is
+ * less than that of <code>real</code>.
+ */
+
+static VALUE
+big_lt(VALUE x, VALUE y)
 {
     return big_op(x, y, big_op_lt);
 }
 
-VALUE
-rb_big_le(VALUE x, VALUE y)
+/*
+ * call-seq:
+ *   big <= real  ->  true or false
+ *
+ * Returns <code>true</code> if the value of <code>big</code> is
+ * less than or equal to that of <code>real</code>.
+ */
+
+static VALUE
+big_le(VALUE x, VALUE y)
 {
     return big_op(x, y, big_op_le);
 }
@@ -5462,8 +5522,8 @@ rb_big_le(VALUE x, VALUE y)
  *     big == obj  -> true or false
  *
  *  Returns <code>true</code> only if <i>obj</i> has the same value
- *  as <i>big</i>. Contrast this with <code>Integer#eql?</code>, which
- *  requires <i>obj</i> to be a <code>Integer</code>.
+ *  as <i>big</i>. Contrast this with <code>Bignum#eql?</code>, which
+ *  requires <i>obj</i> to be a <code>Bignum</code>.
  *
  *     68719476736 == 68719476736.0   #=> true
  */
@@ -5472,7 +5532,8 @@ VALUE
 rb_big_eq(VALUE x, VALUE y)
 {
     if (FIXNUM_P(y)) {
-	return bignorm(x) == y ? Qtrue : Qfalse;
+	if (bignorm(x) == y) return Qtrue;
+	y = rb_int2big(FIX2LONG(y));
     }
     else if (RB_BIGNUM_TYPE_P(y)) {
     }
@@ -5482,53 +5543,83 @@ rb_big_eq(VALUE x, VALUE y)
     else {
 	return rb_equal(y, x);
     }
-    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;
+    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;
     return Qtrue;
 }
 
+/*
+ *  call-seq:
+ *     big.eql?(obj)   -> true or false
+ *
+ *  Returns <code>true</code> only if <i>obj</i> is a
+ *  <code>Bignum</code> with the same value as <i>big</i>. Contrast this
+ *  with <code>Bignum#==</code>, which performs type conversions.
+ *
+ *     68719476736.eql?(68719476736.0)   #=> false
+ */
+
 VALUE
 rb_big_eql(VALUE x, VALUE y)
 {
     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;
+    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;
     return Qtrue;
 }
 
+/*
+ * call-seq:
+ *    -big   ->  integer
+ *
+ * Unary minus (returns an integer whose value is 0-big)
+ */
+
 VALUE
 rb_big_uminus(VALUE x)
 {
     VALUE z = rb_big_clone(x);
 
-    BIGNUM_NEGATE(z);
+    RBIGNUM_SET_SIGN(z, !RBIGNUM_SIGN(x));
 
     return bignorm(z);
 }
 
-VALUE
-rb_big_comp(VALUE x)
+/*
+ * call-seq:
+ *     ~big  ->  integer
+ *
+ * Inverts the bits in big. As Bignums are conceptually infinite
+ * length, the result acts as if it had an infinite number of one
+ * bits to the left. In hex representations, this is displayed
+ * as two periods to the left of the digits.
+ *
+ *   sprintf("%X", ~0x1122334455)    #=> "..FEEDDCCBBAA"
+ */
+
+static VALUE
+rb_big_neg(VALUE x)
 {
     VALUE z = rb_big_clone(x);
     BDIGIT *ds = BDIGITS(z);
-    long n = BIGNUM_LEN(z);
+    long n = RBIGNUM_LEN(z);
 
     if (!n) return INT2FIX(-1);
 
-    if (BIGNUM_POSITIVE_P(z)) {
+    if (RBIGNUM_POSITIVE_P(z)) {
         if (bary_add_one(ds, n)) {
             big_extend_carry(z);
         }
-        BIGNUM_SET_NEGATIVE_SIGN(z);
+        RBIGNUM_SET_NEGATIVE_SIGN(z);
     }
     else {
         bary_neg(ds, n);
         if (bary_add_one(ds, n))
             return INT2FIX(-1);
         bary_neg(ds, n);
-        BIGNUM_SET_POSITIVE_SIGN(z);
+        RBIGNUM_SET_POSITIVE_SIGN(z);
     }
 
     return bignorm(z);
@@ -5541,8 +5632,8 @@ bigsub(VALUE x, VALUE y)
     BDIGIT *xds, *yds, *zds;
     long xn, yn, zn;
 
-    xn = BIGNUM_LEN(x);
-    yn = BIGNUM_LEN(y);
+    xn = RBIGNUM_LEN(x);
+    yn = RBIGNUM_LEN(y);
     zn = xn < yn ? yn : xn;
 
     z = bignew(zn, 1);
@@ -5553,7 +5644,7 @@ bigsub(VALUE x, VALUE y)
 
     if (bary_sub(zds, zn, xds, xn, yds, yn)) {
         bary_2comp(zds, zn);
-        BIGNUM_SET_NEGATIVE_SIGN(z);
+        RBIGNUM_SET_NEGATIVE_SIGN(z);
     }
 
     return z;
@@ -5572,24 +5663,24 @@ bigsub_int(VALUE x, long y0)
 
     y = y0;
     xds = BDIGITS(x);
-    xn = BIGNUM_LEN(x);
+    xn = RBIGNUM_LEN(x);
 
     if (xn == 0)
         return LONG2NUM(-y0);
 
     zn = xn;
-#if SIZEOF_BDIGIT < SIZEOF_LONG
+#if SIZEOF_BDIGITS < SIZEOF_LONG
     if (zn < bdigit_roomof(SIZEOF_LONG))
         zn = bdigit_roomof(SIZEOF_LONG);
 #endif
-    z = bignew(zn, BIGNUM_SIGN(x));
+    z = bignew(zn, RBIGNUM_SIGN(x));
     zds = BDIGITS(z);
 
-#if SIZEOF_BDIGIT >= SIZEOF_LONG
+#if SIZEOF_BDIGITS >= SIZEOF_LONG
     assert(xn == zn);
     num = (BDIGIT_DBL_SIGNED)xds[0] - y;
     if (xn == 1 && num < 0) {
-	BIGNUM_NEGATE(z);
+	RBIGNUM_SET_SIGN(z, !RBIGNUM_SIGN(x));
 	zds[0] = (BDIGIT)-num;
 	RB_GC_GUARD(x);
 	return bignorm(z);
@@ -5626,7 +5717,7 @@ bigsub_int(VALUE x, long y0)
 	zds[i] = BIGLO(num);
 	num = BIGDN(num);
     }
-#if SIZEOF_BDIGIT < SIZEOF_LONG
+#if SIZEOF_BDIGITS < SIZEOF_LONG
     for (; i < zn; i++) {
       y_is_zero_z:
         if (num == 0) goto num_is_zero_z;
@@ -5640,7 +5731,7 @@ bigsub_int(VALUE x, long y0)
       num_is_zero_x:
 	zds[i] = xds[i];
     }
-#if SIZEOF_BDIGIT < SIZEOF_LONG
+#if SIZEOF_BDIGITS < SIZEOF_LONG
     for (; i < zn; i++) {
       num_is_zero_z:
         zds[i] = 0;
@@ -5652,7 +5743,7 @@ bigsub_int(VALUE x, long y0)
     assert(num == 0 || num == -1);
     if (num < 0) {
         get2comp(z);
-	BIGNUM_NEGATE(z);
+	RBIGNUM_SET_SIGN(z, !RBIGNUM_SIGN(x));
     }
     RB_GC_GUARD(x);
     return bignorm(z);
@@ -5668,22 +5759,22 @@ bigadd_int(VALUE x, long y)
     long i;
 
     xds = BDIGITS(x);
-    xn = BIGNUM_LEN(x);
+    xn = RBIGNUM_LEN(x);
 
     if (xn == 0)
         return LONG2NUM(y);
 
     zn = xn;
-#if SIZEOF_BDIGIT < SIZEOF_LONG
+#if SIZEOF_BDIGITS < SIZEOF_LONG
     if (zn < bdigit_roomof(SIZEOF_LONG))
         zn = bdigit_roomof(SIZEOF_LONG);
 #endif
     zn++;
 
-    z = bignew(zn, BIGNUM_SIGN(x));
+    z = bignew(zn, RBIGNUM_SIGN(x));
     zds = BDIGITS(z);
 
-#if SIZEOF_BDIGIT >= SIZEOF_LONG
+#if SIZEOF_BDIGITS >= SIZEOF_LONG
     num = (BDIGIT_DBL)xds[0] + y;
     zds[0] = BIGLO(num);
     num = BIGDN(num);
@@ -5745,29 +5836,36 @@ static VALUE
 bigadd(VALUE x, VALUE y, int sign)
 {
     VALUE z;
-    size_t len;
+    long len;
 
-    sign = (sign == BIGNUM_SIGN(y));
-    if (BIGNUM_SIGN(x) != sign) {
+    sign = (sign == RBIGNUM_SIGN(y));
+    if (RBIGNUM_SIGN(x) != sign) {
 	if (sign) return bigsub(y, x);
 	return bigsub(x, y);
     }
 
-    if (BIGNUM_LEN(x) > BIGNUM_LEN(y)) {
-	len = BIGNUM_LEN(x) + 1;
+    if (RBIGNUM_LEN(x) > RBIGNUM_LEN(y)) {
+	len = RBIGNUM_LEN(x) + 1;
     }
     else {
-	len = BIGNUM_LEN(y) + 1;
+	len = RBIGNUM_LEN(y) + 1;
     }
     z = bignew(len, sign);
 
-    bary_add(BDIGITS(z), BIGNUM_LEN(z),
-             BDIGITS(x), BIGNUM_LEN(x),
-             BDIGITS(y), BIGNUM_LEN(y));
+    bary_add(BDIGITS(z), RBIGNUM_LEN(z),
+             BDIGITS(x), RBIGNUM_LEN(x),
+             BDIGITS(y), RBIGNUM_LEN(y));
 
     return z;
 }
 
+/*
+ *  call-seq:
+ *     big + other  -> Numeric
+ *
+ *  Adds big and other, returning the result.
+ */
+
 VALUE
 rb_big_plus(VALUE x, VALUE y)
 {
@@ -5775,7 +5873,7 @@ rb_big_plus(VALUE x, VALUE y)
 
     if (FIXNUM_P(y)) {
 	n = FIX2LONG(y);
-	if ((n > 0) != BIGNUM_SIGN(x)) {
+	if ((n > 0) != RBIGNUM_SIGN(x)) {
 	    if (n < 0) {
 		n = -n;
 	    }
@@ -5797,6 +5895,13 @@ rb_big_plus(VALUE x, VALUE y)
     }
 }
 
+/*
+ *  call-seq:
+ *     big - other  -> Numeric
+ *
+ *  Subtracts other from big, returning the result.
+ */
+
 VALUE
 rb_big_minus(VALUE x, VALUE y)
 {
@@ -5804,7 +5909,7 @@ rb_big_minus(VALUE x, VALUE y)
 
     if (FIXNUM_P(y)) {
 	n = FIX2LONG(y);
-	if ((n > 0) != BIGNUM_SIGN(x)) {
+	if ((n > 0) != RBIGNUM_SIGN(x)) {
 	    if (n < 0) {
 		n = -n;
 	    }
@@ -5833,7 +5938,7 @@ bigsq(VALUE x)
     VALUE z;
     BDIGIT *xds, *zds;
 
-    xn = BIGNUM_LEN(x);
+    xn = RBIGNUM_LEN(x);
     zn = 2 * xn;
 
     z = bignew(zn, 1);
@@ -5841,10 +5946,17 @@ bigsq(VALUE x)
     xds = BDIGITS(x);
     zds = BDIGITS(z);
 
-    if (xn < NAIVE_MUL_DIGITS)
+#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;
@@ -5860,11 +5972,11 @@ bigmul0(VALUE x, VALUE y)
     if (x == y)
         return bigsq(x);
 
-    xn = BIGNUM_LEN(x);
-    yn = BIGNUM_LEN(y);
+    xn = RBIGNUM_LEN(x);
+    yn = RBIGNUM_LEN(y);
     zn = xn + yn;
 
-    z = bignew(zn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+    z = bignew(zn, RBIGNUM_SIGN(x)==RBIGNUM_SIGN(y));
 
     xds = BDIGITS(x);
     yds = BDIGITS(y);
@@ -5877,6 +5989,13 @@ bigmul0(VALUE x, VALUE y)
     return z;
 }
 
+/*
+ *  call-seq:
+ *     big * other  -> Numeric
+ *
+ *  Multiplies big and other, returning the result.
+ */
+
 VALUE
 rb_big_mul(VALUE x, VALUE y)
 {
@@ -5898,7 +6017,7 @@ rb_big_mul(VALUE x, VALUE y)
 static VALUE
 bigdivrem(VALUE x, VALUE y, volatile VALUE *divp, volatile VALUE *modp)
 {
-    long xn = BIGNUM_LEN(x), yn = BIGNUM_LEN(y);
+    long xn = RBIGNUM_LEN(x), yn = RBIGNUM_LEN(y);
     VALUE z;
     BDIGIT *xds, *yds, *zds;
     BDIGIT dd;
@@ -5922,12 +6041,12 @@ bigdivrem(VALUE x, VALUE y, volatile VALUE *divp, volatile VALUE *modp)
     }
     if (yn == 1) {
 	dd = yds[0];
-	z = bignew(xn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+	z = bignew(xn, RBIGNUM_SIGN(x)==RBIGNUM_SIGN(y));
 	zds = BDIGITS(z);
         dd = bigdivrem_single(zds, xds, xn, dd);
 	if (modp) {
 	    *modp = rb_uint2big((VALUE)dd);
-	    BIGNUM_SET_SIGN(*modp, BIGNUM_SIGN(x));
+	    RBIGNUM_SET_SIGN(*modp, RBIGNUM_SIGN(x));
 	}
 	if (divp) *divp = z;
 	return Qnil;
@@ -5938,14 +6057,14 @@ bigdivrem(VALUE x, VALUE y, volatile VALUE *divp, volatile VALUE *modp)
         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));
+            z = bignew(bdigit_roomof(sizeof(BDIGIT_DBL)), RBIGNUM_SIGN(x)==RBIGNUM_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));
+            z = bignew(bdigit_roomof(sizeof(BDIGIT_DBL)), RBIGNUM_SIGN(x));
             zds = BDIGITS(z);
             zds[0] = BIGLO(r0);
             zds[1] = BIGLO(BIGDN(r0));
@@ -5956,7 +6075,7 @@ bigdivrem(VALUE x, VALUE y, volatile VALUE *divp, volatile VALUE *modp)
 
     if (divp) {
         qn = xn + BIGDIVREM_EXTRA_WORDS;
-        q = bignew(qn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+        q = bignew(qn, RBIGNUM_SIGN(x)==RBIGNUM_SIGN(y));
         qds = BDIGITS(q);
     }
     else {
@@ -5966,7 +6085,7 @@ bigdivrem(VALUE x, VALUE y, volatile VALUE *divp, volatile VALUE *modp)
 
     if (modp) {
         rn = yn;
-        r = bignew(rn, BIGNUM_SIGN(x));
+        r = bignew(rn, RBIGNUM_SIGN(x));
         rds = BDIGITS(r);
     }
     else {
@@ -5994,7 +6113,7 @@ bigdivmod(VALUE x, VALUE y, volatile VALUE *divp, volatile VALUE *modp)
     VALUE mod;
 
     bigdivrem(x, y, divp, &mod);
-    if (BIGNUM_SIGN(x) != BIGNUM_SIGN(y) && !BIGZEROP(mod)) {
+    if (RBIGNUM_SIGN(x) != RBIGNUM_SIGN(y) && !BIGZEROP(mod)) {
 	if (divp) *divp = bigadd(*divp, rb_int2big(1), 0);
 	if (modp) *modp = bigadd(mod, y, 1);
     }
@@ -6032,18 +6151,43 @@ rb_big_divide(VALUE x, VALUE y, ID op)
     return bignorm(z);
 }
 
+/*
+ *  call-seq:
+ *     big / other     -> Numeric
+ *
+ * Performs division: the class of the resulting object depends on
+ * the class of <code>numeric</code> and on the magnitude of the
+ * result.
+ */
+
 VALUE
 rb_big_div(VALUE x, VALUE y)
 {
     return rb_big_divide(x, y, '/');
 }
 
+/*
+ *  call-seq:
+ *     big.div(other)  -> integer
+ *
+ * Performs integer division: returns integer value.
+ */
+
 VALUE
 rb_big_idiv(VALUE x, VALUE y)
 {
     return rb_big_divide(x, y, rb_intern("div"));
 }
 
+/*
+ *  call-seq:
+ *     big % other         -> Numeric
+ *     big.modulo(other)   -> Numeric
+ *
+ *  Returns big modulo other. See Numeric.divmod for more
+ *  information.
+ */
+
 VALUE
 rb_big_modulo(VALUE x, VALUE y)
 {
@@ -6060,7 +6204,16 @@ rb_big_modulo(VALUE x, VALUE y)
     return bignorm(z);
 }
 
-VALUE
+/*
+ *  call-seq:
+ *     big.remainder(numeric)    -> number
+ *
+ *  Returns the remainder after dividing <i>big</i> by <i>numeric</i>.
+ *
+ *     -1234567890987654321.remainder(13731)      #=> -6966
+ *     -1234567890987654321.remainder(13731.24)   #=> -9906.22531493148
+ */
+static VALUE
 rb_big_remainder(VALUE x, VALUE y)
 {
     VALUE z;
@@ -6076,6 +6229,13 @@ rb_big_remainder(VALUE x, VALUE y)
     return bignorm(z);
 }
 
+/*
+ *  call-seq:
+ *     big.divmod(numeric)   -> array
+ *
+ *  See <code>Numeric#divmod</code>.
+ *
+ */
 VALUE
 rb_big_divmod(VALUE x, VALUE y)
 {
@@ -6102,20 +6262,17 @@ big_shift(VALUE x, long n)
     return x;
 }
 
-enum {DBL_BIGDIG = ((DBL_MANT_DIG + BITSPERDIG) / BITSPERDIG)};
-
-static double
+static VALUE
 big_fdiv(VALUE x, VALUE y, long ey)
 {
+#define DBL_BIGDIG ((DBL_MANT_DIG + BITSPERDIG) / BITSPERDIG)
     VALUE z;
     long l, ex;
 
     bigtrunc(x);
-    l = BIGNUM_LEN(x);
+    l = RBIGNUM_LEN(x);
     ex = l * BITSPERDIG - nlz(BDIGITS(x)[l-1]);
     ex -= 2 * DBL_BIGDIG * BITSPERDIG;
-    if (ex > BITSPERDIG) ex -= BITSPERDIG;
-    else if (ex > 0) ex = 0;
     if (ex) x = big_shift(x, ex);
 
     bigdivrem(x, y, &z, 0);
@@ -6123,26 +6280,26 @@ big_fdiv(VALUE x, VALUE y, long ey)
 #if SIZEOF_LONG > SIZEOF_INT
     {
 	/* Visual C++ can't be here */
-	if (l > INT_MAX) return INFINITY;
-	if (l < INT_MIN) return 0.0;
+	if (l > INT_MAX) return DBL2NUM(INFINITY);
+	if (l < INT_MIN) return DBL2NUM(0.0);
     }
 #endif
-    return ldexp(big2dbl(z), (int)l);
+    return DBL2NUM(ldexp(big2dbl(z), (int)l));
 }
 
-static double
+static VALUE
 big_fdiv_int(VALUE x, VALUE y)
 {
     long l, ey;
     bigtrunc(y);
-    l = BIGNUM_LEN(y);
+    l = RBIGNUM_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 double
+static VALUE
 big_fdiv_float(VALUE x, VALUE y)
 {
     int i;
@@ -6150,8 +6307,21 @@ big_fdiv_float(VALUE x, VALUE y)
     return big_fdiv(x, y, i - DBL_MANT_DIG);
 }
 
-double
-rb_big_fdiv_double(VALUE x, VALUE y)
+/*
+ *  call-seq:
+  *     big.fdiv(numeric) -> float
+ *
+ *  Returns the floating point result of dividing <i>big</i> by
+ *  <i>numeric</i>.
+ *
+ *     -1234567890987654321.fdiv(13731)      #=> -89910996357705.5
+ *     -1234567890987654321.fdiv(13731.24)   #=> -89909424858035.7
+ *
+ */
+
+
+VALUE
+rb_big_fdiv(VALUE x, VALUE y)
 {
     double dx, dy;
 
@@ -6169,21 +6339,28 @@ rb_big_fdiv_double(VALUE x, VALUE y)
     else if (RB_FLOAT_TYPE_P(y)) {
 	dy = RFLOAT_VALUE(y);
 	if (isnan(dy))
-	    return dy;
+	    return y;
 	if (isinf(dx))
 	    return big_fdiv_float(x, y);
     }
     else {
-	return NUM2DBL(rb_num_coerce_bin(x, y, rb_intern("fdiv")));
+	return rb_num_coerce_bin(x, y, rb_intern("fdiv"));
     }
-    return dx / dy;
+    return DBL2NUM(dx / dy);
 }
 
-VALUE
-rb_big_fdiv(VALUE x, VALUE y)
-{
-    return DBL2NUM(rb_big_fdiv_double(x, y));
-}
+/*
+ *  call-seq:
+ *     big ** exponent   -> numeric
+ *
+ *  Raises _big_ to the _exponent_ power (which may be an integer, float,
+ *  or anything that will coerce to a number). The result may be
+ *  a Fixnum, Bignum, or Float
+ *
+ *    123456789 ** 2      #=> 15241578750190521
+ *    123456789 ** 1.2    #=> 5126464716.09932
+ *    123456789 ** -2     #=> 6.5610001194102e-17
+ */
 
 VALUE
 rb_big_pow(VALUE x, VALUE y)
@@ -6195,8 +6372,8 @@ rb_big_pow(VALUE x, VALUE y)
     if (y == INT2FIX(0)) return INT2FIX(1);
     if (RB_FLOAT_TYPE_P(y)) {
 	d = RFLOAT_VALUE(y);
-	if ((BIGNUM_NEGATIVE_P(x) && !BIGZEROP(x)) && d != round(d))
-	    return rb_funcall(rb_complex_raw1(x), idPow, 1, y);
+	if ((!RBIGNUM_SIGN(x) && !BIGZEROP(x)) && d != round(d))
+	    return rb_funcall(rb_complex_raw1(x), rb_intern("**"), 1, y);
     }
     else if (RB_BIGNUM_TYPE_P(y)) {
 	y = bignorm(y);
@@ -6209,7 +6386,7 @@ rb_big_pow(VALUE x, VALUE y)
 	yy = FIX2LONG(y);
 
 	if (yy < 0)
-	    return rb_funcall(rb_rational_raw1(x), idPow, 1, y);
+	    return rb_funcall(rb_rational_raw1(x), rb_intern("**"), 1, y);
 	else {
 	    VALUE z = 0;
 	    SIGNED_VALUE mask;
@@ -6234,7 +6411,7 @@ rb_big_pow(VALUE x, VALUE y)
 	}
     }
     else {
-	return rb_num_coerce_bin(x, y, idPow);
+	return rb_num_coerce_bin(x, y, rb_intern("**"));
     }
     return DBL2NUM(pow(rb_big2dbl(x), d));
 }
@@ -6252,7 +6429,7 @@ bigand_int(VALUE x, long xn, BDIGIT hibitsx, long y)
     if (xn == 0) return hibitsx ? LONG2NUM(y) : 0;
     hibitsy = 0 <= y ? 0 : BDIGMAX;
     xds = BDIGITS(x);
-#if SIZEOF_BDIGIT >= SIZEOF_LONG
+#if SIZEOF_BDIGITS >= SIZEOF_LONG
     if (!hibitsy) {
 	y &= xds[0];
 	return LONG2NUM(y);
@@ -6260,7 +6437,7 @@ bigand_int(VALUE x, long xn, BDIGIT hibitsx, long y)
 #endif
 
     zn = xn;
-#if SIZEOF_BDIGIT < SIZEOF_LONG
+#if SIZEOF_BDIGITS < SIZEOF_LONG
     if (hibitsx && zn < bdigit_roomof(SIZEOF_LONG))
         zn = bdigit_roomof(SIZEOF_LONG);
 #endif
@@ -6268,9 +6445,9 @@ bigand_int(VALUE x, long xn, BDIGIT hibitsx, long y)
     z = bignew(zn, 0);
     zds = BDIGITS(z);
 
-#if SIZEOF_BDIGIT >= SIZEOF_LONG
+#if SIZEOF_BDIGITS >= SIZEOF_LONG
     i = 1;
-    zds[0] = xds[0] & BIGLO(y);
+    zds[0] = xds[0] & y;
 #else
     for (i=0; i < xn; i++) {
         if (y == 0 || y == -1) break;
@@ -6294,6 +6471,13 @@ bigand_int(VALUE x, long xn, BDIGIT hibitsx, long y)
     return bignorm(z);
 }
 
+/*
+ * call-seq:
+ *     big & numeric   ->  integer
+ *
+ * Performs bitwise +and+ between _big_ and _numeric_.
+ */
+
 VALUE
 rb_big_and(VALUE x, VALUE y)
 {
@@ -6306,7 +6490,7 @@ rb_big_and(VALUE x, VALUE y)
     BDIGIT tmph;
     long tmpn;
 
-    if (!RB_INTEGER_TYPE_P(y)) {
+    if (!FIXNUM_P(y) && !RB_BIGNUM_TYPE_P(y)) {
 	return rb_num_coerce_bit(x, y, '&');
     }
 
@@ -6359,17 +6543,17 @@ bigor_int(VALUE x, long xn, BDIGIT hibitsx, long y)
     hibitsy = 0 <= y ? 0 : BDIGMAX;
     xds = BDIGITS(x);
 
-    zn = BIGNUM_LEN(x);
-#if SIZEOF_BDIGIT < SIZEOF_LONG
+    zn = RBIGNUM_LEN(x);
+#if SIZEOF_BDIGITS < SIZEOF_LONG
     if (zn < bdigit_roomof(SIZEOF_LONG))
         zn = bdigit_roomof(SIZEOF_LONG);
 #endif
     z = bignew(zn, 0);
     zds = BDIGITS(z);
 
-#if SIZEOF_BDIGIT >= SIZEOF_LONG
+#if SIZEOF_BDIGITS >= SIZEOF_LONG
     i = 1;
-    zds[0] = xds[0] | BIGLO(y);
+    zds[0] = xds[0] | y;
     if (i < zn)
         goto y_is_fixed_point;
     goto finish;
@@ -6413,6 +6597,13 @@ bigor_int(VALUE x, long xn, BDIGIT hibitsx, long y)
     return bignorm(z);
 }
 
+/*
+ * call-seq:
+ *     big | numeric   ->  integer
+ *
+ * Performs bitwise +or+ between _big_ and _numeric_.
+ */
+
 VALUE
 rb_big_or(VALUE x, VALUE y)
 {
@@ -6425,7 +6616,7 @@ rb_big_or(VALUE x, VALUE y)
     BDIGIT tmph;
     long tmpn;
 
-    if (!RB_INTEGER_TYPE_P(y)) {
+    if (!FIXNUM_P(y) && !RB_BIGNUM_TYPE_P(y)) {
 	return rb_num_coerce_bit(x, y, '|');
     }
 
@@ -6475,17 +6666,17 @@ bigxor_int(VALUE x, long xn, BDIGIT hibitsx, long y)
 
     hibitsy = 0 <= y ? 0 : BDIGMAX;
     xds = BDIGITS(x);
-    zn = BIGNUM_LEN(x);
-#if SIZEOF_BDIGIT < SIZEOF_LONG
+    zn = RBIGNUM_LEN(x);
+#if SIZEOF_BDIGITS < SIZEOF_LONG
     if (zn < bdigit_roomof(SIZEOF_LONG))
         zn = bdigit_roomof(SIZEOF_LONG);
 #endif
     z = bignew(zn, 0);
     zds = BDIGITS(z);
 
-#if SIZEOF_BDIGIT >= SIZEOF_LONG
+#if SIZEOF_BDIGITS >= SIZEOF_LONG
     i = 1;
-    zds[0] = xds[0] ^ BIGLO(y);
+    zds[0] = xds[0] ^ y;
 #else
     for (i = 0; i < xn; i++) {
         zds[i] = xds[i] ^ BIGLO(y);
@@ -6506,6 +6697,12 @@ bigxor_int(VALUE x, long xn, BDIGIT hibitsx, long y)
     RB_GC_GUARD(x);
     return bignorm(z);
 }
+/*
+ * call-seq:
+ *     big ^ numeric   ->  integer
+ *
+ * Performs bitwise +exclusive or+ between _big_ and _numeric_.
+ */
 
 VALUE
 rb_big_xor(VALUE x, VALUE y)
@@ -6519,7 +6716,7 @@ rb_big_xor(VALUE x, VALUE y)
     BDIGIT tmph;
     long tmpn;
 
-    if (!RB_INTEGER_TYPE_P(y)) {
+    if (!FIXNUM_P(y) && !RB_BIGNUM_TYPE_P(y)) {
 	return rb_num_coerce_bit(x, y, '^');
     }
 
@@ -6555,6 +6752,13 @@ rb_big_xor(VALUE x, VALUE y)
     return bignorm(z);
 }
 
+/*
+ * call-seq:
+ *     big << numeric   ->  integer
+ *
+ * Shifts big left _numeric_ positions (right if _numeric_ is negative).
+ */
+
 VALUE
 rb_big_lshift(VALUE x, VALUE y)
 {
@@ -6585,6 +6789,14 @@ rb_big_lshift(VALUE x, VALUE y)
     }
 }
 
+
+/*
+ * call-seq:
+ *     big >> numeric   ->  integer
+ *
+ * Shifts big right _numeric_ positions (left if _numeric_ is negative).
+ */
+
 VALUE
 rb_big_rshift(VALUE x, VALUE y)
 {
@@ -6615,42 +6827,56 @@ rb_big_rshift(VALUE x, VALUE y)
     }
 }
 
-VALUE
+/*
+ *  call-seq:
+ *     big[n] -> 0, 1
+ *
+ *  Bit Reference---Returns the <em>n</em>th bit in the (assumed) binary
+ *  representation of <i>big</i>, where <i>big</i>[0] is the least
+ *  significant bit.
+ *
+ *     a = 9**15
+ *     50.downto(0) do |n|
+ *       print a[n]
+ *     end
+ *
+ *  <em>produces:</em>
+ *
+ *     000101110110100000111000011110010100111100010111001
+ *
+ */
+
+static VALUE
 rb_big_aref(VALUE x, VALUE y)
 {
     BDIGIT *xds;
-    size_t shift;
-    size_t i, s1, s2;
-    long l;
+    unsigned long shift;
+    long i, s1, s2;
     BDIGIT bit;
 
     if (RB_BIGNUM_TYPE_P(y)) {
-	if (BIGNUM_NEGATIVE_P(y))
+	if (!RBIGNUM_SIGN(y))
 	    return INT2FIX(0);
 	bigtrunc(y);
-	if (BIGSIZE(y) > sizeof(size_t)) {
+	if (BIGSIZE(y) > sizeof(long)) {
 	  out_of_range:
-	    return BIGNUM_SIGN(x) ? INT2FIX(0) : INT2FIX(1);
+	    return RBIGNUM_SIGN(x) ? INT2FIX(0) : INT2FIX(1);
 	}
-#if SIZEOF_SIZE_T <= SIZEOF_LONG
 	shift = big2ulong(y, "long");
-#else
-	shift = big2ull(y, "long long");
-#endif
     }
     else {
-	l = NUM2LONG(y);
-	if (l < 0) return INT2FIX(0);
-	shift = (size_t)l;
+	i = NUM2LONG(y);
+	if (i < 0) return INT2FIX(0);
+	shift = i;
     }
     s1 = shift/BITSPERDIG;
     s2 = shift%BITSPERDIG;
     bit = (BDIGIT)1 << s2;
 
-    if (s1 >= BIGNUM_LEN(x)) goto out_of_range;
+    if (s1 >= RBIGNUM_LEN(x)) goto out_of_range;
 
     xds = BDIGITS(x);
-    if (BIGNUM_POSITIVE_P(x))
+    if (RBIGNUM_POSITIVE_P(x))
         return (xds[s1] & bit) ? INT2FIX(1) : INT2FIX(0);
     if (xds[s1] & (bit-1))
         return (xds[s1] & bit) ? INT2FIX(0) : INT2FIX(1);
@@ -6660,13 +6886,20 @@ rb_big_aref(VALUE x, VALUE y)
     return (xds[s1] & bit) ? INT2FIX(1) : INT2FIX(0);
 }
 
-VALUE
+/*
+ * call-seq:
+ *   big.hash   -> fixnum
+ *
+ * Compute a hash based on the value of _big_.
+ */
+
+static VALUE
 rb_big_hash(VALUE x)
 {
     st_index_t hash;
 
-    hash = rb_memhash(BDIGITS(x), sizeof(BDIGIT)*BIGNUM_LEN(x)) ^ BIGNUM_SIGN(x);
-    return ST2FIX(hash);
+    hash = rb_memhash(BDIGITS(x), sizeof(BDIGIT)*RBIGNUM_LEN(x)) ^ RBIGNUM_SIGN(x);
+    return INT2FIX(hash);
 }
 
 /*
@@ -6684,47 +6917,88 @@ rb_big_hash(VALUE x)
  */
 
 static VALUE
-rb_int_coerce(VALUE x, VALUE y)
+rb_big_coerce(VALUE x, VALUE y)
 {
-    if (RB_INTEGER_TYPE_P(y)) {
-        return rb_assoc_new(y, x);
+    if (FIXNUM_P(y)) {
+	y = rb_int2big(FIX2LONG(y));
     }
-    else {
-        x = rb_Float(x);
-        y = rb_Float(y);
-        return rb_assoc_new(y, x);
+    else if (!RB_BIGNUM_TYPE_P(y)) {
+	rb_raise(rb_eTypeError, "can't coerce %s to Bignum",
+		 rb_obj_classname(y));
     }
+    return rb_assoc_new(y, x);
 }
 
-VALUE
+/*
+ *  call-seq:
+ *     big.abs -> aBignum
+ *     big.magnitude -> aBignum
+ *
+ *  Returns the absolute value of <i>big</i>.
+ *
+ *     -1234567890987654321.abs   #=> 1234567890987654321
+ */
+
+static VALUE
 rb_big_abs(VALUE x)
 {
-    if (BIGNUM_NEGATIVE_P(x)) {
+    if (!RBIGNUM_SIGN(x)) {
 	x = rb_big_clone(x);
-	BIGNUM_SET_POSITIVE_SIGN(x);
+	RBIGNUM_SET_SIGN(x, 1);
     }
     return x;
 }
 
-int
-rb_big_sign(VALUE x)
-{
-    return BIGNUM_SIGN(x);
-}
+/*
+ *  call-seq:
+ *     big.size -> integer
+ *
+ *  Returns the number of bytes in the machine representation of
+ *  <i>big</i>.
+ *
+ *     (256**10 - 1).size   #=> 12
+ *     (256**20 - 1).size   #=> 20
+ *     (256**40 - 1).size   #=> 40
+ */
 
-size_t
+static VALUE
 rb_big_size(VALUE big)
 {
-    return BIGSIZE(big);
+    return SIZET2NUM(BIGSIZE(big));
 }
 
-VALUE
-rb_big_size_m(VALUE big)
-{
-    return SIZET2NUM(rb_big_size(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
+ *
+ */
 
-VALUE
+static VALUE
 rb_big_bit_length(VALUE big)
 {
     int nlz_bits;
@@ -6740,7 +7014,7 @@ rb_big_bit_length(VALUE big)
     if (numbytes == 0)
         return LONG2FIX(0);
 
-    if (BIGNUM_NEGATIVE_P(big) && rb_absint_singlebit_p(big)) {
+    if (RBIGNUM_NEGATIVE_P(big) && rb_absint_singlebit_p(big)) {
         if (nlz_bits != CHAR_BIT-1) {
             nlz_bits++;
         }
@@ -6765,323 +7039,36 @@ rb_big_bit_length(VALUE big)
             INTEGER_PACK_LSWORD_FIRST|INTEGER_PACK_NATIVE_BYTE_ORDER);
 }
 
-VALUE
-rb_big_odd_p(VALUE num)
-{
-    if (BIGNUM_LEN(num) != 0 && BDIGITS(num)[0] & 1) {
-	return Qtrue;
-    }
-    return Qfalse;
-}
-
-VALUE
-rb_big_even_p(VALUE num)
-{
-    if (BIGNUM_LEN(num) != 0 && BDIGITS(num)[0] & 1) {
-	return Qfalse;
-    }
-    return Qtrue;
-}
-
-unsigned long rb_ulong_isqrt(unsigned long);
-#if SIZEOF_BDIGIT*2 > SIZEOF_LONG
-BDIGIT rb_bdigit_dbl_isqrt(BDIGIT_DBL);
-# ifdef ULL_TO_DOUBLE
-#   define BDIGIT_DBL_TO_DOUBLE(n) ULL_TO_DOUBLE(n)
-# endif
-#else
-# define rb_bdigit_dbl_isqrt(x) (BDIGIT)rb_ulong_isqrt(x)
-#endif
-#ifndef BDIGIT_DBL_TO_DOUBLE
-# define BDIGIT_DBL_TO_DOUBLE(n) (double)(n)
-#endif
-
-static BDIGIT *
-estimate_initial_sqrt(VALUE *xp, const size_t xn, const BDIGIT *nds, size_t len)
-{
-    enum {dbl_per_bdig = roomof(DBL_MANT_DIG,BITSPERDIG)};
-    const int zbits = nlz(nds[len-1]);
-    VALUE x = *xp = bignew_1(0, xn, 1); /* division may release the GVL */
-    BDIGIT *xds = BDIGITS(x);
-    BDIGIT_DBL d = bary2bdigitdbl(nds+len-dbl_per_bdig, dbl_per_bdig);
-    BDIGIT lowbits = 1;
-    int rshift = (int)((BITSPERDIG*2-zbits+(len&BITSPERDIG&1) - DBL_MANT_DIG + 1) & ~1);
-    double f;
-
-    if (rshift > 0) {
-	lowbits = (BDIGIT)d & ~(~(BDIGIT)1U << rshift);
-	d >>= rshift;
-    }
-    else if (rshift < 0) {
-	d <<= -rshift;
-	d |= nds[len-dbl_per_bdig-1] >> (BITSPERDIG+rshift);
-    }
-    f = sqrt(BDIGIT_DBL_TO_DOUBLE(d));
-    d = (BDIGIT_DBL)ceil(f);
-    if (BDIGIT_DBL_TO_DOUBLE(d) == f) {
-	if (lowbits || (lowbits = !bary_zero_p(nds, len-dbl_per_bdig)))
-	    ++d;
-    }
-    else {
-	lowbits = 1;
-    }
-    rshift /= 2;
-    rshift += (2-(len&1))*BITSPERDIG/2;
-    if (rshift >= 0) {
-	d <<= rshift;
-    }
-    BDIGITS_ZERO(xds, xn-2);
-    bdigitdbl2bary(&xds[xn-2], 2, d);
-
-    if (!lowbits) return NULL; /* special case, exact result */
-    return xds;
-}
-
-VALUE
-rb_big_isqrt(VALUE n)
-{
-    BDIGIT *nds = BDIGITS(n);
-    size_t len = BIGNUM_LEN(n);
-    size_t xn = (len+1) / 2;
-    VALUE x;
-    BDIGIT *xds;
-
-    if (len <= 2) {
-	BDIGIT sq = rb_bdigit_dbl_isqrt(bary2bdigitdbl(nds, len));
-#if SIZEOF_BDIGIT > SIZEOF_LONG
-	return ULL2NUM(sq);
-#else
-	return ULONG2NUM(sq);
-#endif
-    }
-    else if ((xds = estimate_initial_sqrt(&x, xn, nds, len)) != 0) {
-	size_t tn = xn + BIGDIVREM_EXTRA_WORDS;
-	VALUE t = bignew_1(0, tn, 1);
-	BDIGIT *tds = BDIGITS(t);
-	tn = BIGNUM_LEN(t);
-
-	/* t = n/x */
-	while (bary_divmod_branch(tds, tn, NULL, 0, nds, len, xds, xn),
-	       bary_cmp(tds, tn, xds, xn) < 0) {
-	    int carry;
-	    BARY_TRUNC(tds, tn);
-	    /* x = (x+t)/2 */
-	    carry = bary_add(xds, xn, xds, xn, tds, tn);
-	    bary_small_rshift(xds, xds, xn, 1, carry);
-	    tn = BIGNUM_LEN(t);
-	}
-	rb_big_realloc(t, 0);
-	rb_gc_force_recycle(t);
-    }
-    RBASIC_SET_CLASS_RAW(x, rb_cInteger);
-    return x;
-}
-
-#ifdef USE_GMP
-static void
-bary_powm_gmp(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, const BDIGIT *mds, size_t mn)
-{
-    const size_t nails = (sizeof(BDIGIT)-SIZEOF_BDIGIT)*CHAR_BIT;
-    mpz_t z, x, y, m;
-    size_t count;
-    mpz_init(x);
-    mpz_init(y);
-    mpz_init(m);
-    mpz_init(z);
-    mpz_import(x, xn, -1, sizeof(BDIGIT), 0, nails, xds);
-    mpz_import(y, yn, -1, sizeof(BDIGIT), 0, nails, yds);
-    mpz_import(m, mn, -1, sizeof(BDIGIT), 0, nails, mds);
-    mpz_powm(z, x, y, m);
-    mpz_export(zds, &count, -1, sizeof(BDIGIT), 0, nails, z);
-    BDIGITS_ZERO(zds+count, zn-count);
-    mpz_clear(x);
-    mpz_clear(y);
-    mpz_clear(m);
-    mpz_clear(z);
-}
-#endif
-
-static VALUE
-int_pow_tmp3(VALUE x, VALUE y, VALUE m, int nega_flg)
-{
-#ifdef USE_GMP
-    VALUE z;
-    size_t xn, yn, mn, zn;
-
-    if (FIXNUM_P(x)) {
-       x = rb_int2big(FIX2LONG(x));
-    }
-    if (FIXNUM_P(y)) {
-       y = rb_int2big(FIX2LONG(y));
-    }
-    assert(RB_BIGNUM_TYPE_P(m));
-    xn = BIGNUM_LEN(x);
-    yn = BIGNUM_LEN(y);
-    mn = BIGNUM_LEN(m);
-    zn = mn;
-    z = bignew(zn, 1);
-    bary_powm_gmp(BDIGITS(z), zn, BDIGITS(x), xn, BDIGITS(y), yn, BDIGITS(m), mn);
-    if (nega_flg & BIGNUM_POSITIVE_P(z)) {
-        z = rb_funcall(z, '-', 1, m);
-    }
-    RB_GC_GUARD(x);
-    RB_GC_GUARD(y);
-    RB_GC_GUARD(m);
-    return rb_big_norm(z);
-#else
-    VALUE tmp = LONG2FIX(1L);
-    long yy;
-
-    for (/*NOP*/; ! FIXNUM_P(y); y = rb_funcall(y, rb_intern(">>"), 1, LONG2FIX(1L))) {
-        if (RTEST(rb_funcall(y, rb_intern("odd?"), 0))) {
-            tmp = rb_funcall(tmp, '*', 1, x);
-            tmp = rb_int_modulo(tmp, m);
-        }
-        x = rb_funcall(x, '*', 1, x);
-        x = rb_int_modulo(x, m);
-    }
-    for (yy = FIX2LONG(y); yy; yy >>= 1L) {
-        if (yy & 1L) {
-            tmp = rb_funcall(tmp, '*', 1, x);
-            tmp = rb_int_modulo(tmp, m);
-        }
-        x = rb_funcall(x, '*', 1, x);
-        x = rb_int_modulo(x, m);
-    }
-
-    if (nega_flg && RTEST(rb_funcall(tmp, rb_intern("positive?"), 0))) {
-        tmp = rb_funcall(tmp, '-', 1, m);
-    }
-    return tmp;
-#endif
-}
-
 /*
- * Integer#pow
+ *  call-seq:
+ *     big.odd? -> true or false
+ *
+ *  Returns <code>true</code> if <i>big</i> is an odd number.
  */
 
 static VALUE
-int_pow_tmp1(VALUE x, VALUE y, long mm, int nega_flg)
+rb_big_odd_p(VALUE num)
 {
-    long xx = FIX2LONG(x);
-    long tmp = 1L;
-    long yy;
-
-    for (/*NOP*/; ! FIXNUM_P(y); y = rb_funcall(y, idGTGT, 1, LONG2FIX(1L))) {
-        if (RTEST(rb_int_odd_p(y))) {
-            tmp = (tmp * xx) % mm;
-        }
-        xx = (xx * xx) % mm;
-    }
-    for (yy = FIX2LONG(y); yy; yy >>= 1L) {
-        if (yy & 1L) {
-            tmp = (tmp * xx) % mm;
-        }
-        xx = (xx * xx) % mm;
-    }
-
-    if (nega_flg && tmp) {
-        tmp -= mm;
-    }
-    return LONG2FIX(tmp);
-}
-
-static VALUE
-int_pow_tmp2(VALUE x, VALUE y, long mm, int nega_flg)
-{
-    long tmp = 1L;
-    long yy;
-#ifdef DLONG
-    const DLONG m = mm;
-    long tmp2 = tmp;
-    long xx = FIX2LONG(x);
-# define MUL_MODULO(a, b, c) (long)(((DLONG)(a) * (DLONG)(b)) % (c))
-#else
-    const VALUE m = LONG2FIX(mm);
-    VALUE tmp2 = LONG2FIX(tmp);
-    VALUE xx = x;
-# define MUL_MODULO(a, b, c) rb_int_modulo(rb_fix_mul_fix((a), (b)), (c))
-#endif
-
-    for (/*NOP*/; ! FIXNUM_P(y); y = rb_funcall(y, idGTGT, 1, LONG2FIX(1L))) {
-        if (RTEST(rb_int_odd_p(y))) {
-            tmp2 = MUL_MODULO(tmp2, xx, m);
-        }
-        xx = MUL_MODULO(xx, xx, m);
-    }
-    for (yy = FIX2LONG(y); yy; yy >>= 1L) {
-        if (yy & 1L) {
-            tmp2 = MUL_MODULO(tmp2, xx, m);
-        }
-        xx = MUL_MODULO(xx, xx, m);
-    }
-
-#ifdef DLONG
-    tmp = tmp2;
-#else
-    tmp = FIX2LONG(tmp2);
-#endif
-    if (nega_flg && tmp) {
-        tmp -= mm;
+    if (RBIGNUM_LEN(num) != 0 && BDIGITS(num)[0] & 1) {
+	return Qtrue;
     }
-    return LONG2FIX(tmp);
+    return Qfalse;
 }
 
 /*
- * Document-method: Integer#pow
- * call-seq:
- *    integer.pow(numeric)           ->  numeric
- *    integer.pow(integer, integer)  ->  integer
- *
- * Returns (modular) exponentiation as:
+ *  call-seq:
+ *     big.even? -> true or false
  *
- *   a.pow(b)     #=> same as a**b
- *   a.pow(b, m)  #=> same as (a**b) % m, but avoids huge temporary values
+ *  Returns <code>true</code> if <i>big</i> is an even number.
  */
-VALUE
-rb_int_powm(int const argc, VALUE * const argv, VALUE const num)
-{
-    rb_check_arity(argc, 1, 2);
-
-    if (argc == 1) {
-        return rb_funcall(num, rb_intern("**"), 1, argv[0]);
-    }
-    else {
-        VALUE const a = num;
-        VALUE const b = argv[0];
-        VALUE m = argv[1];
-        int nega_flg = 0;
-        if ( ! RB_INTEGER_TYPE_P(b)) {
-            rb_raise(rb_eTypeError, "Integer#pow() 2nd argument not allowed unless a 1st argument is integer");
-        }
-        if (rb_num_negative_int_p(b)) {
-            rb_raise(rb_eRangeError, "Integer#pow() 1st argument cannot be negative when 2nd argument specified");
-        }
-        if (!RB_INTEGER_TYPE_P(m)) {
-            rb_raise(rb_eTypeError, "Integer#pow() 2nd argument not allowed unless all arguments are integers");
-        }
 
-        if (rb_num_negative_int_p(m)) {
-            m = rb_funcall(m, idUMinus, 0);
-            nega_flg = 1;
-        }
-
-        if (!rb_num_positive_int_p(m)) {
-            rb_num_zerodiv();
-        }
-        if (FIXNUM_P(m)) {
-            long const half_val = (long)HALF_LONG_MSB;
-            long const mm = FIX2LONG(m);
-            if (mm <= half_val) {
-                return int_pow_tmp1(rb_int_modulo(a, m), b, mm, nega_flg);
-            } else {
-                return int_pow_tmp2(rb_int_modulo(a, m), b, mm, nega_flg);
-            }
-        } else if (RB_TYPE_P(m, T_BIGNUM)) {
-            return int_pow_tmp3(rb_int_modulo(a, m), b, m, nega_flg);
-        }
+static VALUE
+rb_big_even_p(VALUE num)
+{
+    if (RBIGNUM_LEN(num) != 0 && BDIGITS(num)[0] & 1) {
+	return Qfalse;
     }
-    UNREACHABLE;
+    return Qtrue;
 }
 
 /*
@@ -7105,17 +7092,50 @@ rb_int_powm(int const argc, VALUE * const argv, VALUE const num)
 void
 Init_Bignum(void)
 {
-#ifndef RUBY_INTEGER_UNIFICATION
-    rb_cBignum = rb_cInteger;
-#endif
-    rb_define_const(rb_cObject, "Bignum", rb_cInteger);
-    rb_deprecate_constant(rb_cObject, "Bignum");
-
-    rb_define_method(rb_cInteger, "coerce", rb_int_coerce, 1);
+    rb_cBignum = rb_define_class("Bignum", rb_cInteger);
+
+    rb_define_method(rb_cBignum, "to_s", rb_big_to_s, -1);
+    rb_define_alias(rb_cBignum, "inspect", "to_s");
+    rb_define_method(rb_cBignum, "coerce", rb_big_coerce, 1);
+    rb_define_method(rb_cBignum, "-@", rb_big_uminus, 0);
+    rb_define_method(rb_cBignum, "+", rb_big_plus, 1);
+    rb_define_method(rb_cBignum, "-", rb_big_minus, 1);
+    rb_define_method(rb_cBignum, "*", rb_big_mul, 1);
+    rb_define_method(rb_cBignum, "/", rb_big_div, 1);
+    rb_define_method(rb_cBignum, "%", rb_big_modulo, 1);
+    rb_define_method(rb_cBignum, "div", rb_big_idiv, 1);
+    rb_define_method(rb_cBignum, "divmod", rb_big_divmod, 1);
+    rb_define_method(rb_cBignum, "modulo", rb_big_modulo, 1);
+    rb_define_method(rb_cBignum, "remainder", rb_big_remainder, 1);
+    rb_define_method(rb_cBignum, "fdiv", rb_big_fdiv, 1);
+    rb_define_method(rb_cBignum, "**", rb_big_pow, 1);
+    rb_define_method(rb_cBignum, "&", rb_big_and, 1);
+    rb_define_method(rb_cBignum, "|", rb_big_or, 1);
+    rb_define_method(rb_cBignum, "^", rb_big_xor, 1);
+    rb_define_method(rb_cBignum, "~", rb_big_neg, 0);
+    rb_define_method(rb_cBignum, "<<", rb_big_lshift, 1);
+    rb_define_method(rb_cBignum, ">>", rb_big_rshift, 1);
+    rb_define_method(rb_cBignum, "[]", rb_big_aref, 1);
+
+    rb_define_method(rb_cBignum, "<=>", rb_big_cmp, 1);
+    rb_define_method(rb_cBignum, "==", rb_big_eq, 1);
+    rb_define_method(rb_cBignum, ">", big_gt, 1);
+    rb_define_method(rb_cBignum, ">=", big_ge, 1);
+    rb_define_method(rb_cBignum, "<", big_lt, 1);
+    rb_define_method(rb_cBignum, "<=", big_le, 1);
+    rb_define_method(rb_cBignum, "===", rb_big_eq, 1);
+    rb_define_method(rb_cBignum, "eql?", rb_big_eql, 1);
+    rb_define_method(rb_cBignum, "hash", rb_big_hash, 0);
+    rb_define_method(rb_cBignum, "to_f", rb_big_to_f, 0);
+    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);
 
 #ifdef USE_GMP
-    /* The version of loaded GMP. */
-    rb_define_const(rb_cInteger, "GMP_VERSION", rb_sprintf("GMP %s", gmp_version));
+    rb_define_const(rb_cBignum, "GMP_VERSION", rb_sprintf("GMP %s", gmp_version));
 #endif
 
     power_cache_init();
diff --git a/bin/erb b/bin/erb
index 86f7042fae..6a7ea7d593 100755
--- a/bin/erb
+++ b/bin/erb
@@ -11,8 +11,7 @@ class ERB
       return nil if self.empty?
       arg = self.shift
       return nil if arg == '--'
-      case arg
-      when /\A-(.)(.*)/
+      if arg =~ /^-(.)(.*)/
         if $1 == '-'
           arg, @maybe_arg = arg.split(/=/, 2)
           return arg
@@ -25,8 +24,6 @@ class ERB
           @maybe_arg = nil
         end
         "-#{$1}"
-      when /\A(\w+)=/
-        arg
       else
         self.unshift arg
         nil
@@ -57,7 +54,6 @@ class ERB
     def run(factory=ERB)
       trim_mode = 0
       disable_percent = false
-      variables = {}
       begin
         while switch = ARGV.switch
           case switch
@@ -76,7 +72,7 @@ class ERB
             require ARGV.req_arg
           when '-S'                        # security level
             arg = ARGV.req_arg
-            raise "invalid safe_level #{arg.dump}" unless arg =~ /\A[0-1]\z/
+            raise "invalid safe_level #{arg.dump}" unless arg =~ /^[0-3]$/
             safe_level = arg.to_i
           when '-T'                        # trim mode
             arg = ARGV.req_arg
@@ -84,7 +80,7 @@ class ERB
               trim_mode = arg
               next
             end
-            raise "invalid trim mode #{arg.dump}" unless arg =~ /\A[0-2]\z/
+            raise "invalid trim mode #{arg.dump}" unless arg =~ /^[0-2]$/
             trim_mode = arg.to_i
           when '-E', '--encoding'
             arg = ARGV.req_arg
@@ -95,34 +91,30 @@ class ERB
             disable_percent = true
           when '--help'
             raise "print this help"
-          when /\A-/
-            raise "unknown switch #{switch.dump}"
           else
-            var, val = *switch.split('=', 2)
-            (variables ||= {})[var] = val
+            raise "unknown switch #{switch.dump}"
           end
         end
       rescue                               # usage
         STDERR.puts $!.to_s
         STDERR.puts File.basename($0) +
-          " [switches] [var=value...] [inputfile]"
+          " [switches] [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..1)
+  -S safe_level    set $SAFE (0..3)
   -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
 
-      $<.set_encoding(Encoding::UTF_8, nil)
+      $<.set_encoding(Encoding::ASCII_8BIT, nil)
       src = $<.read
       filename = $FILENAME
       exit 2 unless src
@@ -138,23 +130,15 @@ EOU
           puts erb.src
         end
       else
-        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)
+        erb.run(TOPLEVEL_BINDING.taint)
       end
     end
     module_function :run
 
     def set_encoding(extern, intern = nil)
       verbose, $VERBOSE = $VERBOSE, nil
-      Encoding.default_external = extern unless extern.nil? || extern == ""
-      Encoding.default_internal = intern unless intern.nil? || intern == ""
+      Encoding.default_external = extern unless extern.nil? || extern.empty?
+      Encoding.default_internal = intern unless intern.nil? || intern.empty?
       [$stdin, $stdout, $stderr].each do |io|
         io.set_encoding(extern, intern)
       end
diff --git a/bin/rake b/bin/rake
new file mode 100755
index 0000000000..4e0bbb7b7a
--- /dev/null
+++ b/bin/rake
@@ -0,0 +1,33 @@
+#!/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
+
+require 'rake'
+
+Rake.application.run
diff --git a/bin/testrb b/bin/testrb
new file mode 100755
index 0000000000..23a00b439f
--- /dev/null
+++ b/bin/testrb
@@ -0,0 +1,3 @@
+#!/usr/bin/env ruby
+require 'test/unit'
+exit Test::Unit::AutoRunner.run(true)
diff --git a/bootstraptest/runner.rb b/bootstraptest/runner.rb
index e807ce5b62..5fdfc42a63 100755
--- a/bootstraptest/runner.rb
+++ b/bootstraptest/runner.rb
@@ -60,7 +60,6 @@ end
 def main
   @ruby = File.expand_path('miniruby')
   @verbose = false
-  $VERBOSE = false
   $stress = false
   @color = nil
   @tty = nil
@@ -137,18 +136,13 @@ End
   @tty &&= !@verbose
   if @color
     # dircolors-like style
-    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"
+    colors = (colors = ENV['TEST_COLORS']) ? Hash[colors.scan(/(\w+)=([^:]*)/)] : {}
+    @passed = "\e[#{colors["pass"] || "32"}m"
+    @failed = "\e[#{colors["fail"] || "31"}m"
     @reset = "\e[m"
+    @erase = "\r\e[2K\r"
   else
-    @passed = @failed = @reset = ""
+    @passed = @failed = @reset = @erase = ""
   end
   unless quiet
     puts Time.now
@@ -169,44 +163,28 @@ 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.printf("%s%-*s ", erase(@quiet), @width, @basename)
-    $stderr.flush
-    @columns = @width + 1
+    $stderr.print @basename, " "
     $stderr.puts if @verbose
     count = @count
     error = @error
     load File.expand_path(path)
     if @tty
       if @error == error
-        msg = "PASS #{@count-count}"
-        @columns += msg.size - 1
-        $stderr.print "#{@progress_bs}#{@passed}#{msg}#{@reset}"
+        $stderr.print "#{@progress_bs}#{@passed}PASS #{@count-count}#{@reset}"
+        $stderr.print @erase if @quiet
       else
-        msg = "FAIL #{@error-error}/#{@count-count}"
-        $stderr.print "#{@progress_bs}#{@failed}#{msg}#{@reset}"
-        @columns = 0
+        $stderr.print "#{@progress_bs}#{@failed}FAIL #{@error-error}/#{@count-count}#{@reset}"
       end
     end
-    $stderr.puts unless @quiet and @tty and @error == error
+    $stderr.puts unless @quiet and @tty
   end
-  $stderr.print(erase) if @quiet
   if @error == 0
     if @count == 0
       $stderr.puts "No tests, no problem"
@@ -229,32 +207,26 @@ 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"
-    $stderr.printf(" %.3f", t) if @verbose
-    $stderr.print "#{@reset}"
+    $stderr.print "#{@failed}F#{@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.printf("%-*s%s", @width, @basename, @progress[@count % @progress.size])
+      $stderr.print @basename, " ", @progress[@count % @progress.size]
     end
   end
 rescue Interrupt
-  $stderr.puts "\##{@count} #{@location}"
   raise Interrupt
 rescue Exception => err
   $stderr.print 'E'
@@ -262,17 +234,23 @@ rescue Exception => err
   error err.message, message
 end
 
-def assert_check(testsrc, message = '', opt = '', **argh)
+# NativeClient is special.  The binary is cross-compiled.  But runs on the build environment.
+# So RUBY_PLATFORM in this process is not useful to detect it.
+def nacl?
+  @ruby and File.basename(@ruby.split(/\s/).first)['sel_ldr']
+end
+
+def assert_check(testsrc, message = '', opt = '')
   show_progress(message) {
-    result = get_result_string(testsrc, opt, **argh)
+    result = get_result_string(testsrc, opt)
     check_coredump
     yield(result)
   }
 end
 
-def assert_equal(expected, testsrc, message = '', opt = '', **argh)
+def assert_equal(expected, testsrc, message = '')
   newtest
-  assert_check(testsrc, message, opt, **argh) {|result|
+  assert_check(testsrc, message) {|result|
     if expected == result
       nil
     else
@@ -313,10 +291,13 @@ def assert_valid_syntax(testsrc, message = '')
   }
 end
 
-def assert_normal_exit(testsrc, *rest, timeout: nil, **opt)
+def assert_normal_exit(testsrc, *rest)
   newtest
+  opt = {}
+  opt = rest.pop if Hash === rest.last
   message, ignore_signals = rest
   message ||= ''
+  timeout = opt[:timeout]
   show_progress(message) {
     faildesc = nil
     filename = make_srcfile(testsrc)
@@ -397,33 +378,32 @@ def flunk(message = '')
 end
 
 def pretty(src, desc, result)
-  src = src.sub(/\A\s*\n/, '')
+  src = src.sub(/\A.*\n/, '')
   (/\n/ =~ src ? "\n#{adjust_indent(src)}" : src) + "  #=> #{desc}"
 end
 
 INDENT = 27
 
 def adjust_indent(src)
-  untabify(src).gsub(/^ {#{INDENT}}/o, '').gsub(/^/, '   ').sub(/\s*\z/, "\n")
+  untabify(src).gsub(/^ {#{INDENT}}/o, '').gsub(/^/, '   ')
 end
 
 def untabify(str)
   str.gsub(/^\t+/) {' ' * (8 * $&.size) }
 end
 
-def make_srcfile(src, frozen_string_literal: nil)
+def make_srcfile(src)
   filename = 'bootstraptest.tmp.rb'
   File.open(filename, 'w') {|f|
-    f.puts "#frozen_string_literal:true" if frozen_string_literal
     f.puts "GC.stress = true" if $stress
     f.puts "print(begin; #{src}; end)"
   }
   filename
 end
 
-def get_result_string(src, opt = '', **argh)
+def get_result_string(src, opt = '')
   if @ruby
-    filename = make_srcfile(src, **argh)
+    filename = make_srcfile(src)
     begin
       `#{@ruby} -W0 #{opt} #{filename}`
     ensure
@@ -465,7 +445,7 @@ 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_block.rb b/bootstraptest/test_block.rb
index cdc5960a59..6a2ccfc6da 100644
--- a/bootstraptest/test_block.rb
+++ b/bootstraptest/test_block.rb
@@ -597,17 +597,3 @@ 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_eval.rb b/bootstraptest/test_eval.rb
index 8e90ac2728..bf7478006d 100644
--- a/bootstraptest/test_eval.rb
+++ b/bootstraptest/test_eval.rb
@@ -109,7 +109,7 @@ assert_equal %q{foo}, %q{
   }
 }
 assert_equal %q{1}, %q{
-  class Integer
+  class Fixnum
     Const = 1
   end
   1.instance_eval %{
diff --git a/bootstraptest/test_fork.rb b/bootstraptest/test_fork.rb
index 1cd9f7ac6c..384294727f 100644
--- a/bootstraptest/test_fork.rb
+++ b/bootstraptest/test_fork.rb
@@ -22,32 +22,26 @@ assert_finish 10, %q{
 }, '[ruby-core:22158]'
 
 assert_normal_exit(<<'End', '[ruby-dev:37934]')
-  main = Thread.current
-  Thread.new { sleep 0.01 until main.stop?; Thread.kill main }
-  Process.setrlimit(:NPROC, 1) if defined?(Process::RLIMIT_NPROC)
+  Thread.new { sleep 1; Thread.kill Thread.main }
+  Process.setrlimit(:NPROC, 1)
   fork {}
 End
 
 assert_equal 'ok', %q{
   begin
-    r, w = IO.pipe
     if pid1 = fork
-      w.close
-      r.read(1)
+      sleep 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; Process.kill("USR2", pid2) }
-        w.close
+        trap("USR1") { Time.now.to_s }
         Process.wait2(pid2)
       else
-        w.close
-        sleep 0.2
+        sleep 2
       end
-      exit true
+      exit 0
     end
   rescue NotImplementedError
     :ok
@@ -56,17 +50,17 @@ assert_equal 'ok', %q{
 
 assert_equal '[1, 2]', %q{
   a = []
-  main = Thread.current
-  trap(:INT) { a.push(1).size == 2 and main.wakeup }
-  trap(:TERM) { a.push(2).size == 2 and main.wakeup }
+  trap(:INT) { a.push(1) }
+  trap(:TERM) { a.push(2) }
   pid = $$
   begin
-    pid = fork do
+    fork do
+      sleep 0.5
       Process.kill(:INT, pid)
       Process.kill(:TERM, pid)
     end
-    Process.wait(pid)
-    100.times {break if a.size > 1; sleep 0.001}
+
+    sleep 1
     a.sort
   rescue NotImplementedError
     [1, 2]
diff --git a/bootstraptest/test_insns.rb b/bootstraptest/test_insns.rb
deleted file mode 100644
index 4dd888897a..0000000000
--- a/bootstraptest/test_insns.rb
+++ /dev/null
@@ -1,389 +0,0 @@
-# C0 coverage of each instructions
-
-# :NOTE: This is for development purpose; never consider this file as
-# ISeq compilation specification.
-
-begin
-  # This library brings some additional coverage.
-  # Not mandatory.
-  require 'rbconfig/sizeof'
-rescue LoadError
-  # OK, just skip
-else
-  $FIXNUM_MAX = RbConfig::LIMITS["FIXNUM_MAX"]
-  $FIXNUM_MIN = RbConfig::LIMITS["FIXNUM_MIN"]
-end
-
-fsl   = { frozen_string_literal: true } # used later
-tests = [
-  # insn ,   expression to generate such insn
-  [ 'nop',   %q{ raise rescue true }, ],
-  [ 'trace', %q{ true }, ],
-
-  [ 'setlocal *, 0', %q{ x = true }, ],
-  [ 'setlocal *, 1', %q{ x = nil; -> { x = true }.call }, ],
-  [ 'setlocal',      %q{ x = nil; -> { -> { x = true }.() }.() }, ],
-  [ 'getlocal *, 0', %q{ x = true; x }, ],
-  [ 'getlocal *, 1', %q{ x = true; -> { x }.call }, ],
-  [ 'getlocal',      %q{ x = true; -> { -> { x }.() }.() }, ],
-
-  [ 'setspecial', %q{ true if true..true }, ],
-  [ 'getspecial', %q{ $&.nil? }, ],
-  [ 'getspecial', %q{ $`.nil? }, ],
-  [ 'getspecial', %q{ $'.nil? }, ],
-  [ 'getspecial', %q{ $+.nil? }, ],
-  [ 'getspecial', %q{ $1.nil? }, ],
-  [ 'getspecial', %q{ $128.nil? }, ],
-
-  [ 'getglobal', %q{ String === $0 }, ],
-  [ 'getglobal', %q{ $_.nil? }, ],
-  [ 'setglobal', %q{ $0 = "true" }, ],
-
-  [ 'setinstancevariable', %q{ @x = true }, ],
-  [ 'getinstancevariable', %q{ @x = true; @x }, ],
-
-  [ 'setclassvariable', %q{ @@x = true }, ],
-  [ 'getclassvariable', %q{ @@x = true; @@x }, ],
-
-  [ 'setconstant', %q{ X = true }, ],
-  [ 'setconstant', %q{ Object::X = true }, ],
-  [ 'getconstant', %q{ X = true; X }, ],
-  [ 'getconstant', %q{ X = true; Object::X }, ],
-
-  [ 'getinlinecache / setinlinecache', %q{ def x; X; end; X = true; x; x; x }, ],
-
-  [ 'putnil',               %q{ $~ == nil }, ],
-  [ 'putself',              %q{ $~ != self }, ],
-  [ 'putobject INT2FIX(0)', %q{ $~ != 0 }, ],
-  [ 'putobject INT2FIX(1)', %q{ $~ != 1 }, ],
-  [ 'putobject',            %q{ $~ != -1 }, ],
-  [ 'putobject',            %q{ $~ != /x/ }, ],
-  [ 'putobject',            %q{ $~ != :x }, ],
-  [ 'putobject',            %q{ $~ != (1..2) }, ],
-  [ 'putobject',            %q{ $~ != true }, ],
-  [ 'putobject',            %q{ /(?<x>x)/ =~ "x"; x == "x" }, ],
-
-  [ 'putspecialobject',         %q{ {//=>true}[//] }, ],
-  [ 'putiseq',                  %q{ -> { true }.() }, ],
-  [ 'putstring',                %q{ "true" }, ],
-  [ 'tostring / concatstrings', %q{ "#{true}" }, ],
-  [ 'freezestring',             %q{ "#{true}"}, fsl, ],
-  [ 'freezestring',             %q{ "#{true}"}, '-d', fsl, ],
-  [ 'toregexp',                 %q{ /#{true}/ =~ "true" && $~ }, ],
-
-  [ 'newarray',    %q{ ["true"][0] }, ],
-  [ 'duparray',    %q{ [ true ][0] }, ],
-  [ 'expandarray', %q{ y = [ true, false, nil ]; x, = y; x }, ],
-  [ 'expandarray', %q{ y = [ true, false, nil ]; x, *z = y; x }, ],
-  [ 'expandarray', %q{ y = [ true, false, nil ]; x, *z, w = y; x }, ],
-  [ 'splatarray',  %q{ x, = *(y = true), false; x }, ],
-  [ 'concatarray', %q{ ["t", "r", *x = "u", "e"].join }, ],
-  [ 'concatarray', <<~'},', ],  # {
-    class X; def to_a; ['u']; end; end
-    ['t', 'r', *X.new, 'e'].join
-  },
-  [ 'concatarray', <<~'},', ],  # {
-    r = false
-    t = [true, nil]
-    q, w, e = r, *t             # here
-    w
-  },
-
-  [ 'newhash',  %q{ x = {}; x[x] = true }, ],
-  [ 'newhash',  %q{ x = true; { x => x }[x] }, ],
-  [ 'newrange', %q{ x = 1; [*(0..x)][0] == 0 }, ],
-  [ 'newrange', %q{ x = 1; [*(0...x)][0] == 0 }, ],
-
-  [ 'pop',     %q{ def x; true; end; x }, ],
-  [ 'dup',     %q{ x = y = true; x }, ],
-  [ 'dupn',    %q{ Object::X ||= true }, ],
-  [ 'dupn',    %q{ Object::X ||= true }, ],
-  [ 'reverse', %q{ q, (w, e), r = 1, [2, 3], 4; e == 3 }, ],
-  [ 'swap',    <<~'},', ],      # {
-    x = [[false, true]]
-    for i, j in x               # here
-      ;
-    end
-    j
-  },
-
-  [ 'topn',        %q{ x, y = [], 0; x[*y], = [true, false]; x[0] }, ],
-  [ 'setn',        %q{ x, y = [], 0; x[*y]  =  true        ; x[0] }, ],
-  [ 'adjuststack', %q{ x = [true]; x[0] ||= nil; x[0] }, ],
-
-  [ 'defined',      %q{ !defined?(x) }, ],
-  [ 'checkkeyword', %q{ def x x:rand;x end; x x: true }, ],
-  [ 'checkmatch',   <<~'},', ], # {
-    x = y = true
-    case x
-    when false
-      y = false
-    when true                   # here
-      y = nil
-    end
-    y == nil
-  },
-  [ 'checkmatch',   <<~'},', ], # {
-    x, y = true, [false]
-    case x
-    when *y                     # here
-      z = false
-    else
-      z = true
-    end
-    z
-  },
-  [ 'checkmatch',   <<~'},', ], # {
-    x = false
-    begin
-      raise
-    rescue                      # here
-      x = true
-    end
-    x
-  },
-
-  [ 'defineclass', %q{                 module X;    true end }, ],
-  [ 'defineclass', %q{ X = Module.new; module X;    true end }, ],
-  [ 'defineclass', %q{                 class X;     true end }, ],
-  [ 'defineclass', %q{ X = Class.new;  class X;     true end }, ],
-  [ 'defineclass', %q{ X = Class.new;  class Y < X; true end }, ],
-  [ 'defineclass', %q{ X = Class.new;  class << X;  true end }, ],
-  [ 'defineclass', <<~'},', ], # {
-    X = Class.new
-    Y = Class.new(X)
-    class Y < X
-      true
-    end
-  },
-
-  [ 'opt_send_without_block', %q{ true.to_s }, ],
-  [ 'send',                   %q{ true.tap {|i| i.to_s } }, ],
-  [ 'leave',                  %q{ def x; true; end; x }, ],
-  [ 'invokesuper',            <<~'},', ], # {
-    class X < String
-      def empty?
-        super                   # here
-      end
-    end
-   X.new.empty?
-  },
-  [ 'invokeblock',            <<~'},', ], # {
-    def x
-      return yield self         # here
-    end
-    x do
-      true
-    end
-  },
-
-  [ 'opt_str_freeze', %q{ 'true'.freeze }, ],
-  [ 'opt_str_uminus', %q{ -'true' }, ],
-  [ 'opt_str_freeze', <<~'},', ], # {
-    class String
-      def freeze
-        true
-      end
-    end
-    'true'.freeze
-  },
-
-  [ 'opt_newarray_max', %q{ [ ].max.nil? }, ],
-  [ 'opt_newarray_max', %q{ [1, x = 2, 3].max == 3 }, ],
-  [ 'opt_newarray_max', <<~'},', ], # {
-    class Array
-      def max
-        true
-      end
-    end
-    [1, x = 2, 3].max
-  },
-  [ 'opt_newarray_min', %q{ [ ].min.nil? }, ],
-  [ 'opt_newarray_min', %q{ [3, x = 2, 1].min == 1 }, ],
-  [ 'opt_newarray_min', <<~'},', ], # {
-    class Array
-      def min
-        true
-      end
-    end
-    [3, x = 2, 1].min
-  },
-
-  [ 'throw',        %q{ false.tap { break true } }, ],
-  [ 'branchif',     %q{ x = nil;  x ||= true }, ],
-  [ 'branchif',     %q{ x = true; x ||= nil; x }, ],
-  [ 'branchunless', %q{ x = 1;    x &&= true }, ],
-  [ 'branchunless', %q{ x = nil;  x &&= true; x.nil? }, ],
-  [ 'branchnil',    %q{ x = true; x&.to_s }, ],
-  [ 'branchnil',    %q{ x = nil;  (x&.to_s).nil? }, ],
-  [ 'jump',         <<~'},', ], # {
-    y = 1
-    x = if y == 0 then nil elsif y == 1 then true else nil end
-    x
-  },
-  [ 'jump',         <<~'},', ], # {
-    # ultra complicated situation: this ||= assignment only generates
-    # 15 instructions, not including the class definition.
-    class X; attr_accessor :x; end
-    x = X.new
-    x&.x ||= true               # here
-  },
-
-  [ 'once', %q{ /#{true}/o =~ "true" && $~ }, ],
-  [ 'once', <<~'},', ],         # {
-    def once expr
-      return /#{expr}/o         # here
-    end
-    x = once(true); x = once(false); x = once(nil);
-    x =~ "true" && $~
-  },
-  [ 'once', <<~'},', ],         # {
-    # recursive once
-    def once n
-      return %r/#{
-        if n == 0
-          true
-        else
-          once(n-1)             # here
-        end
-      }/ox
-    end
-    x = once(128); x = once(7); x = once(16);
-    x =~ "true" && $~
-  },
-  [ 'once', <<~'},', ],         # {
-    # inter-thread lockup situation
-    def once n
-      return Thread.start n do |m|
-        Thread.pass
-        next %r/#{
-          sleep m               # here
-          true
-        }/ox
-      end
-    end
-    x = once(1); y = once(0.1); z = y.value
-    z =~ "true" && $~
-  },
-
-  [ 'opt_case_dispatch', %q{ case   0 when 1.1 then false else true end }, ],
-  [ 'opt_case_dispatch', %q{ case 1.0 when 1.1 then false else true end }, ],
-
-  [ 'opt_plus',    %q{ 1 + 1 == 2 }, ],
-  if defined? $FIXNUM_MAX then
-    [ 'opt_plus',  %Q{ #{ $FIXNUM_MAX } + 1 == #{ $FIXNUM_MAX + 1 } }, ]
-  end,
-  [ 'opt_plus',    %q{ 1.0 + 1.0 == 2.0 }, ],
-  [ 'opt_plus',    %q{ x = +0.0.next_float; x + x >= x }, ],
-  [ 'opt_plus',    %q{ 't' + 'rue' }, ],
-  [ 'opt_plus',    %q{ ( ['t'] + ['r', ['u', ['e'], ], ] ).join }, ],
-  [ 'opt_plus',    %q{ Time.at(1) + 1 == Time.at(2) }, ],
-  [ 'opt_minus',   %q{ 1 - 1 == 0 }, ],
-  if defined? $FIXNUM_MIN then
-    [ 'opt_minus', %Q{ #{ $FIXNUM_MIN } - 1 == #{ $FIXNUM_MIN - 1 } }, ]
-  end,
-  [ 'opt_minus',   %q{ 1.0 - 1.0 == 0.0 }, ],
-  [ 'opt_minus',   %q{ x = -0.0.prev_float; x - x == 0.0 }, ],
-  [ 'opt_minus',   %q{ ( [false, true] - [false] )[0] }, ],
-  [ 'opt_mult',    %q{ 1 * 1 == 1 }, ],
-  [ 'opt_mult',    %q{ 1.0 * 1.0 == 1.0 }, ],
-  [ 'opt_mult',    %q{ x = +0.0.next_float; x * x <= x }, ],
-  [ 'opt_mult',    %q{ ( "ruet" * 3 )[7,4] }, ],
-  [ 'opt_div',     %q{ 1 / 1 == 1 }, ],
-  [ 'opt_div',     %q{ 1.0 / 1.0 == 1.0 }, ],
-  [ 'opt_div',     %q{ x = +0.0.next_float; x / x >= x }, ],
-  [ 'opt_div',     %q{ x = 1/2r; x / x == 1 }, ],
-  [ 'opt_mod',     %q{ 1 % 1 == 0 }, ],
-  [ 'opt_mod',     %q{ 1.0 % 1.0 == 0.0 }, ],
-  [ 'opt_mod',     %q{ x = +0.0.next_float; x % x == 0.0 }, ],
-  [ 'opt_mod',     %q{ '%s' % [ true ] }, ],
-
-  [ 'opt_eq', %q{ 1 == 1 }, ],
-  [ 'opt_eq', <<~'},', ],       # {
-    class X; def == other; true; end; end
-    X.new == true
-  },
-  [ 'opt_neq', %q{ 1 != 0 }, ],
-  [ 'opt_neq', <<~'},', ],       # {
-    class X; def != other; true; end; end
-    X.new != true
-  },
-
-  [ 'opt_lt', %q{            -1   <  0 }, ],
-  [ 'opt_lt', %q{            -1.0 <  0.0 }, ],
-  [ 'opt_lt', %q{ -0.0.prev_float <  0.0 }, ],
-  [ 'opt_lt', %q{              ?a <  ?z }, ],
-  [ 'opt_le', %q{            -1   <= 0 }, ],
-  [ 'opt_le', %q{            -1.0 <= 0.0 }, ],
-  [ 'opt_le', %q{ -0.0.prev_float <= 0.0 }, ],
-  [ 'opt_le', %q{              ?a <= ?z }, ],
-  [ 'opt_gt', %q{             1   >  0 }, ],
-  [ 'opt_gt', %q{             1.0 >  0.0 }, ],
-  [ 'opt_gt', %q{ +0.0.next_float >  0.0 }, ],
-  [ 'opt_gt', %q{              ?z >  ?a }, ],
-  [ 'opt_ge', %q{             1   >= 0 }, ],
-  [ 'opt_ge', %q{             1.0 >= 0.0 }, ],
-  [ 'opt_ge', %q{ +0.0.next_float >= 0.0 }, ],
-  [ 'opt_ge', %q{              ?z >= ?a }, ],
-
-  [ 'opt_ltlt', %q{  '' << 'true' }, ],
-  [ 'opt_ltlt', %q{ ([] << 'true').join }, ],
-  [ 'opt_ltlt', %q{ (1 << 31) == 2147483648 }, ],
-
-  [ 'opt_aref', %q{ ['true'][0] }, ],
-  [ 'opt_aref', %q{ { 0 => 'true'}[0] }, ],
-  [ 'opt_aref', %q{ 'true'[0] == ?t }, ],
-  [ 'opt_aset', %q{ [][0] = true }, ],
-  [ 'opt_aset', %q{ {}[0] = true }, ],
-  [ 'opt_aset', %q{ x = 'frue'; x[0] = 't'; x }, ],
-  [ 'opt_aset', <<~'},', ], # {
-    # opt_aref / opt_aset mixup situation
-    class X; def x; {}; end; end
-    x = X.new
-    x&.x[true] ||= true         # here
-  },
-
-  [ 'opt_aref_with', %q{ { 'true' => true }['true'] }, ],
-  [ 'opt_aref_with', %q{ Struct.new(:nil).new['nil'].nil? }, ],
-  [ 'opt_aset_with', %q{ {}['true'] = true }, ],
-  [ 'opt_aset_with', %q{ Struct.new(:true).new['true'] = true }, ],
-
-  [ 'opt_length',  %q{   'true'       .length == 4 }, ],
-  [ 'opt_length',  %q{   :true        .length == 4 }, ],
-  [ 'opt_length',  %q{ [ 'true' ]     .length == 1 }, ],
-  [ 'opt_length',  %q{ { 'true' => 1 }.length == 1 }, ],
-  [ 'opt_size',    %q{   'true'       .size   == 4 }, ],
-  [ 'opt_size',    %q{               1.size   >= 4 }, ],
-  [ 'opt_size',    %q{ [ 'true' ]     .size   == 1 }, ],
-  [ 'opt_size',    %q{ { 'true' => 1 }.size   == 1 }, ],
-  [ 'opt_empty_p', %q{ ''.empty? }, ],
-  [ 'opt_empty_p', %q{ [].empty? }, ],
-  [ 'opt_empty_p', %q{ {}.empty? }, ],
-  [ 'opt_empty_p', %q{ Queue.new.empty? }, ],
-
-  [ 'opt_succ',  %q{ 1.succ == 2 }, ],
-  if defined? $FIXNUM_MAX then
-    [ 'opt_succ',%Q{ #{ $FIXNUM_MAX }.succ == #{ $FIXNUM_MAX + 1 } }, ]
-  end,
-  [ 'opt_succ',  %q{ '1'.succ == '2' }, ],
-  [ 'opt_succ',  %q{ x = Time.at(0); x.succ == Time.at(1) }, ],
-
-  [ 'opt_not',  %q{ ! false }, ],
-  [ 'opt_neq', <<~'},', ],       # {
-    class X; def !; true; end; end
-    ! X.new
-  },
-
-  [ 'opt_regexpmatch1',  %q{ /true/ =~ 'true' && $~ }, ],
-  [ 'opt_regexpmatch1', <<~'},', ],       # {
-    class Regexp; def =~ other; true; end; end
-    /true/ =~ 'true'
-  },
-  [ 'opt_regexpmatch2',  %q{ 'true' =~ /true/ && $~ }, ],
-  [ 'opt_regexpmatch2', <<~'},', ],       # {
-    class String; def =~ other; true; end; end
-    'true' =~ /true/
-  },
-]
-
-tests.compact.each {|(insn, expr, *a)| assert_equal 'true', expr, insn, *a }
diff --git a/bootstraptest/test_io.rb b/bootstraptest/test_io.rb
index 89c00d0b88..f7360f34b3 100644
--- a/bootstraptest/test_io.rb
+++ b/bootstraptest/test_io.rb
@@ -2,8 +2,9 @@ assert_finish 5, %q{
   r, w = IO.pipe
   t1 = Thread.new { r.sysread(1) }
   t2 = Thread.new { r.sysread(1) }
-  sleep 0.01 until t1.stop? and t2.stop?
+  sleep 0.1
   w.write "a"
+  sleep 0.1
   w.write "a"
 }, '[ruby-dev:31866]'
 
@@ -26,16 +27,16 @@ assert_finish 10, %q{
       t1.join
       t2.join
     end
-  rescue LoadError, Timeout::Error, NotImplementedError
+  rescue LoadError, TimeoutError, NotImplementedError
   end
 }, '[ruby-dev:32566]'
 
 assert_finish 1, %q{
   r, w = IO.pipe
   Thread.new {
-    w << "ab"
-    sleep 0.01
-    w << "ab"
+  w << "ab"
+  sleep 0.1
+  w << "ab"
   }
   r.gets("abab")
 }
@@ -52,7 +53,7 @@ assert_equal 'ok', %q{
   STDIN.reopen(rw)
   STDIN.reopen(save)
   rw.close
-  File.unlink(tmpname)
+  File.unlink(tmpname) unless RUBY_PLATFORM['nacl']
   :ok
 }
 
@@ -69,7 +70,7 @@ assert_equal 'ok', %q{
   STDIN.print "a"
   STDIN.reopen(save)
   rw.close
-  File.unlink(tmpname)
+  File.unlink(tmpname) unless RUBY_PLATFORM['nacl']
   :ok
 }
 
@@ -90,8 +91,7 @@ assert_normal_exit %q{
     megacontent = "abc" * 12345678
     #File.open("megasrc", "w") {|f| f << megacontent }
 
-    t0 = Thread.main
-    Thread.new { sleep 0.001 until t0.stop?; Process.kill(:INT, $$) }
+    Thread.new { sleep rand*0.2; Process.kill(:INT, $$) }
 
     r1, w1 = IO.pipe
     r2, w2 = IO.pipe
diff --git a/bootstraptest/test_literal.rb b/bootstraptest/test_literal.rb
index 0c5102c46e..b95a2f2d0a 100644
--- a/bootstraptest/test_literal.rb
+++ b/bootstraptest/test_literal.rb
@@ -15,17 +15,17 @@ assert_equal 'sym',             ':sym'
 assert_equal ':sym',            ':sym.inspect'
 assert_equal 'Symbol',          ':sym.class'
 assert_equal '1234',            '1234'
-assert_equal 'Integer',         '1234.class'
+assert_equal 'Fixnum',          '1234.class'
 assert_equal '1234',            '1_2_3_4'
-assert_equal 'Integer',         '1_2_3_4.class'
+assert_equal 'Fixnum',          '1_2_3_4.class'
 assert_equal '18',              '0x12'
-assert_equal 'Integer',         '0x12.class'
+assert_equal 'Fixnum',          '0x12.class'
 assert_equal '15',              '0o17'
-assert_equal 'Integer',         '0o17.class'
+assert_equal 'Fixnum',          '0o17.class'
 assert_equal '5',               '0b101'
-assert_equal 'Integer',         '0b101.class'
+assert_equal 'Fixnum',          '0b101.class'
 assert_equal '123456789012345678901234567890', '123456789012345678901234567890'
-assert_equal 'Integer',         '123456789012345678901234567890.class'
+assert_equal 'Bignum',          '123456789012345678901234567890.class'
 assert_equal '2.0',             '2.0'
 assert_equal 'Float',           '1.3.class'
 
@@ -65,8 +65,10 @@ assert_equal ':a3c',            ':"a#{1+2}c".inspect'
 assert_equal 'Symbol',          ':"a#{1+2}c".class'
 
 # xstring
-assert_equal "foo\n",           %q(`echo foo`)
-assert_equal "foo\n",           %q(s = "foo"; `echo #{s}`)
+unless nacl?
+  assert_equal "foo\n",           %q(`echo foo`)
+  assert_equal "foo\n",           %q(s = "foo"; `echo #{s}`)
+end
 
 # regexp
 assert_equal '',                '//.source'
@@ -82,7 +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'
 
-# dynamic regexp
+# dynacmi regexp
 assert_equal 'regexp',          %q(/re#{'ge'}xp/.source)
 assert_equal 'Regexp',          %q(/re#{'ge'}xp/.class)
 
@@ -97,7 +99,7 @@ assert_equal '[3]',             '[3].inspect'
 assert_equal '3',               'a = [3]; a[0]'
 assert_equal 'Array',           '[1,2].class'
 assert_equal '2',               '[1,2].size'
-assert_equal '[1, 2]',          '[1,2].inspect'
+assert_equal '[1, 2]',           '[1,2].inspect'
 assert_equal 'Array',           '[1,2,3,4,5].class'
 assert_equal '5',               '[1,2,3,4,5].size'
 assert_equal '[1, 2, 3, 4, 5]', '[1,2,3,4,5].inspect'
@@ -167,7 +169,7 @@ assert_equal 'a',               'r = ("a".."c"); r.begin'
 assert_equal 'c',               'r = ("a".."c"); r.end'
 
 assert_equal 'String',          '__FILE__.class'
-assert_equal 'Integer',         '__LINE__.class'
+assert_equal 'Fixnum',          '__LINE__.class'
 
 ###
 
diff --git a/bootstraptest/test_method.rb b/bootstraptest/test_method.rb
index 3462aa9434..4282bc6273 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_match /\Awrong number of arguments \(.*\b1\b.* 0\)\z/, %q{
+assert_equal 'wrong number of arguments (1 for 0)', %q{
   def m; end
   begin
     m(1)
@@ -12,7 +12,7 @@ assert_match /\Awrong number of arguments \(.*\b1\b.* 0\)\z/, %q{
   end
 }
 
-assert_match /\Awrong number of arguments \(.*\b0\b.* 1\)\z/, %q{
+assert_equal 'wrong number of arguments (0 for 1)', %q{
   def m a; end
   begin
     m
@@ -910,6 +910,34 @@ 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
@@ -929,8 +957,8 @@ assert_equal 'ok', %q{
 
 assert_normal_exit %q{
   begin
-    Process.setrlimit(Process::RLIMIT_STACK, 4_206_592)
-    # FreeBSD SEGVs this less than 4M + 12K bytes.
+    Process.setrlimit(Process::RLIMIT_STACK, 4_202_496)
+    # FreeBSD fails this less than 4M + 8K bytes.
   rescue Exception
     exit
   end
diff --git a/bootstraptest/test_objectspace.rb b/bootstraptest/test_objectspace.rb
index 24a1a0ce2c..862a94e376 100644
--- a/bootstraptest/test_objectspace.rb
+++ b/bootstraptest/test_objectspace.rb
@@ -35,7 +35,7 @@ assert_normal_exit %q{
 
 assert_normal_exit %q{
   ObjectSpace.define_finalizer("") do
-    Thread::Mutex.new.lock
+    Mutex.new.lock
   end
 }, '[ruby-dev:44049]'
 
diff --git a/bootstraptest/test_string.rb b/bootstraptest/test_string.rb
deleted file mode 100644
index 849dcd45b0..0000000000
--- a/bootstraptest/test_string.rb
+++ /dev/null
@@ -1,3 +0,0 @@
-assert_normal_exit %q{
-  inspect.clear
-}, '[ruby-core:68110]'
diff --git a/bootstraptest/test_syntax.rb b/bootstraptest/test_syntax.rb
index a111990a1f..80eaa6416d 100644
--- a/bootstraptest/test_syntax.rb
+++ b/bootstraptest/test_syntax.rb
@@ -376,8 +376,6 @@ 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 d16295de8b..c2b2b8ce9b 100644
--- a/bootstraptest/test_thread.rb
+++ b/bootstraptest/test_thread.rb
@@ -22,12 +22,11 @@ begin
   }
   v == 20100 ? :ok : v
 rescue ThreadError => e
-  :ok if /can't create Thread/ =~ e.message
+  :ok if e.message =~ "can't create Thread"
 end
 }
-assert_equal %q{ok}, %q{
-begin
-  :ok if 5000 == 5000.times{|e|
+assert_equal %q{5000}, %q{
+  5000.times{|e|
     (1..2).map{
       Thread.new{
       }
@@ -35,13 +34,9 @@ begin
       e.join()
     }
   }
-rescue ThreadError => e
-  :ok if /can't create Thread/ =~ e.message
-end
 }
-assert_equal %q{ok}, %q{
-begin
-  :ok if 5000 == 5000.times{|e|
+assert_equal %q{5000}, %q{
+  5000.times{|e|
     (1..2).map{
       Thread.new{
       }
@@ -49,9 +44,6 @@ begin
       e.join(1000000000)
     }
   }
-rescue ThreadError => e
-  :ok if /can't create Thread/ =~ e.message
-end
 }
 assert_equal %q{ok}, %q{
 begin
@@ -93,7 +85,7 @@ assert_equal %q{ok}, %q{
       ans = :ok
     end
   }
-  Thread.pass until t.stop?
+  Thread.pass
   t.kill
   t.join
   ans
@@ -249,16 +241,16 @@ assert_equal 'ok', %{
 }
 
 assert_finish 3, %{
-  th = Thread.new {sleep 0.2}
-  th.join(0.1)
+  th = Thread.new {sleep 2}
+  th.join(1)
   th.join
 }
 
 assert_finish 3, %{
   require 'timeout'
-  th = Thread.new {sleep 0.2}
+  th = Thread.new {sleep 2}
   begin
-    Timeout.timeout(0.1) {th.join}
+    Timeout.timeout(1) {th.join}
   rescue Timeout::Error
   end
   th.join
@@ -284,7 +276,7 @@ assert_normal_exit %q{
 assert_equal 'ok', %q{
   def m
     t = Thread.new { while true; // =~ "" end }
-    sleep 0.01
+    sleep 0.1
     10.times {
       if /((ab)*(ab)*)*(b)/ =~ "ab"*7
         return :ng if !$4
@@ -347,10 +339,9 @@ assert_equal 'ok', %q{
 
 assert_equal 'ok', %q{
   begin
-    m1, m2 = Thread::Mutex.new, Thread::Mutex.new
-    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
+    m1, m2 = Mutex.new, Mutex.new
+    Thread.new { m1.lock; sleep 1; m2.lock }
+    m2.lock; sleep 1; m1.lock
     :ng
   rescue Exception
     :ok
@@ -358,34 +349,34 @@ assert_equal 'ok', %q{
 }
 
 assert_equal 'ok', %q{
-  m = Thread::Mutex.new
-  Thread.new { m.lock }; sleep 0.1; m.lock
+  m = Mutex.new
+  Thread.new { m.lock }; sleep 1; m.lock
   :ok
 }
 
 assert_equal 'ok', %q{
-  m = Thread::Mutex.new
+  m = Mutex.new
   Thread.new { m.lock }; m.lock
   :ok
 }
 
 assert_equal 'ok', %q{
-  m = Thread::Mutex.new
+  m = Mutex.new
   Thread.new { m.lock }.join; m.lock
   :ok
 }
 
 assert_equal 'ok', %q{
-  m = Thread::Mutex.new
-  Thread.new { m.lock; sleep 0.2 }
-  sleep 0.1; m.lock
+  m = Mutex.new
+  Thread.new { m.lock; sleep 2 }
+  sleep 1; m.lock
   :ok
 }
 
 assert_equal 'ok', %q{
-  m = Thread::Mutex.new
-  Thread.new { m.lock; sleep 0.2; m.unlock }
-  sleep 0.1; m.lock
+  m = Mutex.new
+  Thread.new { m.lock; sleep 2; m.unlock }
+  sleep 1; m.lock
   :ok
 }
 
@@ -407,20 +398,19 @@ assert_equal 'ok', %q{
 
 assert_equal 'ok', %{
   open("zzz.rb", "w") do |f|
-    f.puts <<-'end;' # do
+    f.puts <<-END
       begin
-        m = Thread::Mutex.new
+        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 0.01 until parent.stop?
+          sleep 0.3
           begin
             fork { GC.start }
           rescue Exception
             parent.raise $!
           end
-          th1.run
         end
         m.lock
         pid, status = Process.wait2
@@ -428,7 +418,7 @@ assert_equal 'ok', %{
       rescue NotImplementedError
         $result = :ok
       end
-    end;
+    END
   end
   require "./zzz.rb"
   $result
@@ -437,8 +427,8 @@ assert_equal 'ok', %{
 assert_finish 3, %q{
   require 'thread'
 
-  lock = Thread::Mutex.new
-  cond = Thread::ConditionVariable.new
+  lock = Mutex.new
+  cond = ConditionVariable.new
   t = Thread.new do
     lock.synchronize do
       cond.wait(lock)
@@ -458,27 +448,17 @@ assert_finish 3, %q{
 
 assert_equal 'ok', %q{
   begin
-    Process.waitpid2(fork {})[1].success? ? 'ok' : 'ng'
+    Process.waitpid2(fork {sleep 1})[1].success? ? 'ok' : 'ng'
   rescue NotImplementedError
     'ok'
   end
 }
 
 assert_equal 'foo', %q{
-  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 }
+  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 }
   GC.start
   f.call.source
 }
diff --git a/ccan/build_assert/build_assert.h b/ccan/build_assert/build_assert.h
deleted file mode 100644
index a04d1d4709..0000000000
--- a/ccan/build_assert/build_assert.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/* 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
deleted file mode 100644
index 1f77a535e4..0000000000
--- a/ccan/check_type/check_type.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/* 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
deleted file mode 100644
index ae3e1fc81f..0000000000
--- a/ccan/container_of/container_of.h
+++ /dev/null
@@ -1,142 +0,0 @@
-/* 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
deleted file mode 100644
index 89de354795..0000000000
--- a/ccan/licenses/BSD-MIT
+++ /dev/null
@@ -1,17 +0,0 @@
-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
deleted file mode 100644
index feb9b118e6..0000000000
--- a/ccan/licenses/CC0
+++ /dev/null
@@ -1,28 +0,0 @@
-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
deleted file mode 100644
index ca9f9f1f7f..0000000000
--- a/ccan/list/list.h
+++ /dev/null
@@ -1,773 +0,0 @@
-/* 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
deleted file mode 100644
index 9a9da9cd3f..0000000000
--- a/ccan/str/str.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/* 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 364f258333..8d237985b8 100644
--- a/class.c
+++ b/class.c
@@ -23,13 +23,17 @@
  * \{
  */
 
-#include "internal.h"
+#include "ruby/ruby.h"
 #include "ruby/st.h"
+#include "method.h"
 #include "constant.h"
 #include "vm_core.h"
-#include "id_table.h"
+#include "internal.h"
 #include <ctype.h>
 
+int rb_vm_add_root_module(ID id, VALUE module);
+
+
 #define id_attached id__attached__
 
 void
@@ -38,7 +42,7 @@ 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 = malloc(sizeof(*entry));
 	entry->klass = klass;
 	entry->next = NULL;
 
@@ -58,7 +62,7 @@ rb_module_add_to_subclasses_list(VALUE module, VALUE iclass)
 {
     rb_subclass_entry_t *entry, *head;
 
-    entry = ALLOC(rb_subclass_entry_t);
+    entry = malloc(sizeof(*entry));
     entry->klass = iclass;
     entry->next = NULL;
 
@@ -84,7 +88,7 @@ rb_class_remove_from_super_subclasses(VALUE klass)
 	if (entry->next) {
 	    RCLASS_EXT(entry->next->klass)->parent_subclasses = RCLASS_EXT(klass)->parent_subclasses;
 	}
-	xfree(entry);
+	free(entry);
     }
 
     RCLASS_EXT(klass)->parent_subclasses = NULL;
@@ -103,14 +107,14 @@ rb_class_remove_from_module_subclasses(VALUE klass)
 	    RCLASS_EXT(entry->next->klass)->module_subclasses = RCLASS_EXT(klass)->module_subclasses;
 	}
 
-	xfree(entry);
+	free(entry);
     }
 
     RCLASS_EXT(klass)->module_subclasses = NULL;
 }
 
 void
-rb_class_foreach_subclass(VALUE klass, void (*f)(VALUE, VALUE), VALUE arg)
+rb_class_foreach_subclass(VALUE klass, void(*f)(VALUE))
 {
     rb_subclass_entry_t *cur = RCLASS_EXT(klass)->subclasses;
 
@@ -119,32 +123,20 @@ rb_class_foreach_subclass(VALUE klass, void (*f)(VALUE, VALUE), VALUE arg)
     while (cur) {
 	VALUE curklass = cur->klass;
 	cur = cur->next;
-	f(curklass, arg);
+	f(curklass);
     }
 }
 
-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);
+    rb_class_foreach_subclass(klass, rb_class_remove_from_super_subclasses);
 }
 
 void
 rb_class_detach_module_subclasses(VALUE klass)
 {
-    rb_class_foreach_subclass(klass, class_detach_module_subclasses, Qnil);
+    rb_class_foreach_subclass(klass, rb_class_remove_from_module_subclasses);
 }
 
 /**
@@ -162,31 +154,25 @@ rb_class_detach_module_subclasses(VALUE klass)
 static VALUE
 class_alloc(VALUE flags, VALUE klass)
 {
-    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();
+    NEWOBJ_OF(obj, struct RClass, klass, (flags & T_MASK) | (RGENGC_WB_PROTECTED_CLASS ? FL_WB_PROTECTED : 0));
+    obj->ptr = ALLOC(rb_classext_t);
+    RCLASS_IV_TBL(obj) = 0;
+    RCLASS_CONST_TBL(obj) = 0;
+    RCLASS_M_TBL(obj) = 0;
+    RCLASS_SET_SUPER((VALUE)obj, 0);
+    RCLASS_ORIGIN(obj) = (VALUE)obj;
+    RCLASS_IV_INDEX_TBL(obj) = 0;
+
+    RCLASS_EXT(obj)->subclasses = NULL;
+    RCLASS_EXT(obj)->parent_subclasses = NULL;
+    RCLASS_EXT(obj)->module_subclasses = NULL;
+    RCLASS_EXT(obj)->class_serial = 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.
@@ -203,7 +189,7 @@ rb_class_boot(VALUE super)
     VALUE klass = class_alloc(T_CLASS, rb_cClass);
 
     RCLASS_SET_SUPER(klass, super);
-    RCLASS_M_TBL_INIT(klass);
+    RCLASS_M_TBL(klass) = st_init_numtable();
 
     OBJ_INFECT(klass, super);
     return (VALUE)klass;
@@ -220,8 +206,8 @@ void
 rb_check_inheritable(VALUE super)
 {
     if (!RB_TYPE_P(super, T_CLASS)) {
-	rb_raise(rb_eTypeError, "superclass must be a Class (%"PRIsVALUE" given)",
-		 rb_obj_class(super));
+	rb_raise(rb_eTypeError, "superclass must be a Class (%s given)",
+		 rb_obj_classname(super));
     }
     if (RBASIC(super)->flags & FL_SINGLETON) {
 	rb_raise(rb_eTypeError, "can't make subclass of singleton class");
@@ -247,34 +233,53 @@ rb_class_new(VALUE super)
 }
 
 static void
-clone_method(VALUE old_klass, VALUE new_klass, ID mid, const rb_method_entry_t *me)
-{
-    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));
+rewrite_cref_stack(NODE *node, VALUE old_klass, VALUE new_klass, NODE **new_cref_ptr)
+{
+    NODE *new_node;
+    while (node) {
+	if (node->nd_clss == old_klass) {
+	    new_node = NEW_CREF(new_klass);
+	    new_node->nd_next = node->nd_next;
+	    *new_cref_ptr = new_node;
+	    return;
+	}
+	new_node = NEW_CREF(node->nd_clss);
+	node = node->nd_next;
+	*new_cref_ptr = new_node;
+	new_cref_ptr = &new_node->nd_next;
+    }
+    *new_cref_ptr = NULL;
+}
+
+static void
+clone_method(VALUE 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;
+	NODE *new_cref;
+	newiseqval = rb_iseq_clone(me->def->body.iseq->self, klass);
+	GetISeqPtr(newiseqval, iseq);
+	rewrite_cref_stack(me->def->body.iseq->cref_stack, me->klass, klass, &new_cref);
+	OBJ_WRITE(iseq->self, &iseq->cref_stack, new_cref);
+	rb_add_method(klass, mid, VM_METHOD_TYPE_ISEQ, iseq, me->flag);
+	RB_GC_GUARD(newiseqval);
     }
     else {
-	rb_method_entry_set(new_klass, mid, me, METHOD_ENTRY_VISI(me));
+	rb_method_entry_set(klass, mid, me, me->flag);
     }
 }
 
-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)
+static int
+clone_method_i(st_data_t key, st_data_t value, st_data_t data)
 {
-    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;
+    clone_method((VALUE)data, (ID)key, (const rb_method_entry_t *)value);
+    return ST_CONTINUE;
 }
 
 struct clone_const_arg {
     VALUE klass;
-    struct rb_id_table *tbl;
+    st_table *tbl;
 };
 
 static int
@@ -282,17 +287,17 @@ 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);
     MEMCPY(nce, ce, rb_const_entry_t, 1);
-    RB_OBJ_WRITTEN(arg->klass, Qundef, ce->value);
-    RB_OBJ_WRITTEN(arg->klass, Qundef, ce->file);
+    OBJ_WRITTEN(arg->klass, Qundef, ce->value);
+    OBJ_WRITTEN(arg->klass, Qundef, ce->file);
 
-    rb_id_table_insert(arg->tbl, key, (VALUE)nce);
-    return ID_TABLE_CONTINUE;
+    st_insert(arg->tbl, key, (st_data_t)nce);
+    return ST_CONTINUE;
 }
 
-static enum rb_id_table_iterator_result
-clone_const_i(ID key, VALUE value, void *data)
+static int
+clone_const_i(st_data_t key, st_data_t value, st_data_t data)
 {
-    return clone_const(key, (const rb_const_entry_t *)value, data);
+    return clone_const((ID)key, (const rb_const_entry_t *)value, (struct clone_const_arg *)data);
 }
 
 static void
@@ -316,25 +321,19 @@ rb_mod_init_copy(VALUE clone, VALUE orig)
     if (RB_TYPE_P(clone, T_CLASS)) {
 	class_init_copy_check(clone, orig);
     }
-    if (!OBJ_INIT_COPY(clone, orig)) return clone;
+    rb_obj_init_copy(clone, orig);
     if (!FL_TEST(CLASS_OF(clone), FL_SINGLETON)) {
 	RBASIC_SET_CLASS(clone, rb_singleton_class_clone(orig));
 	rb_singleton_class_attached(RBASIC(clone)->klass, (VALUE)clone);
     }
     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) = rb_st_copy(clone, RCLASS_IV_TBL(orig));
 	CONST_ID(id, "__tmp_classpath__");
 	st_delete(RCLASS_IV_TBL(clone), &id, 0);
@@ -345,17 +344,20 @@ rb_mod_init_copy(VALUE clone, VALUE orig)
     }
     if (RCLASS_CONST_TBL(orig)) {
 	struct clone_const_arg arg;
-
-	arg.tbl = RCLASS_CONST_TBL(clone) = rb_id_table_create(0);
+	if (RCLASS_CONST_TBL(clone)) {
+	    rb_free_const_table(RCLASS_CONST_TBL(clone));
+	}
+	RCLASS_CONST_TBL(clone) = st_init_numtable();
 	arg.klass = clone;
-	rb_id_table_foreach(RCLASS_CONST_TBL(orig), clone_const_i, &arg);
+	arg.tbl = RCLASS_CONST_TBL(clone);
+	st_foreach(RCLASS_CONST_TBL(orig), clone_const_i, (st_data_t)&arg);
     }
     if (RCLASS_M_TBL(orig)) {
-	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);
+	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);
     }
 
     return clone;
@@ -370,7 +372,7 @@ rb_singleton_class_clone(VALUE obj)
 VALUE
 rb_singleton_class_clone_and_attach(VALUE obj, VALUE attach)
 {
-    const VALUE klass = RBASIC(obj)->klass;
+    VALUE klass = RBASIC(obj)->klass;
 
     if (!FL_TEST(klass, FL_SINGLETON))
 	return klass;
@@ -392,20 +394,16 @@ rb_singleton_class_clone_and_attach(VALUE obj, VALUE attach)
 	}
 	if (RCLASS_CONST_TBL(klass)) {
 	    struct clone_const_arg arg;
-	    arg.tbl = RCLASS_CONST_TBL(clone) = rb_id_table_create(0);
+	    RCLASS_CONST_TBL(clone) = st_init_numtable();
 	    arg.klass = clone;
-	    rb_id_table_foreach(RCLASS_CONST_TBL(klass), clone_const_i, &arg);
+	    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_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);
-	}
+	RCLASS_M_TBL(clone) = st_init_numtable();
+	st_foreach(RCLASS_M_TBL(klass), clone_method_i, (st_data_t)clone);
 	rb_singleton_class_attached(RBASIC(clone)->klass, clone);
 	FL_SET(clone, FL_SINGLETON);
 
@@ -424,7 +422,7 @@ rb_singleton_class_attached(VALUE klass, VALUE obj)
 	if (!RCLASS_IV_TBL(klass)) {
 	    RCLASS_IV_TBL(klass) = st_init_numtable();
 	}
-	rb_class_ivar_set(klass, id_attached, obj);
+	rb_st_insert_id_and_value(klass, RCLASS_IV_TBL(klass), id_attached, obj);
     }
 }
 
@@ -440,19 +438,6 @@ 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
@@ -460,7 +445,7 @@ rb_singleton_class_internal_p(VALUE sklass)
  */
 #define HAVE_METACLASS_P(k) \
     (FL_TEST(METACLASS_OF(k), FL_SINGLETON) && \
-     rb_singleton_class_has_metaclass_p(k))
+     rb_ivar_get(METACLASS_OF(k), id_attached) == (k))
 
 /*!
  * ensures \a klass belongs to its own eigenclass.
@@ -547,15 +532,10 @@ Init_class_hierarchy(void)
 {
     rb_cBasicObject = boot_defclass("BasicObject", 0);
     rb_cObject = boot_defclass("Object", rb_cBasicObject);
-    rb_gc_register_mark_object(rb_cObject);
-
-    /* resolve class name ASAP for order-independence */
-    rb_class_name(rb_cObject);
-
     rb_cModule = boot_defclass("Module", rb_cObject);
     rb_cClass =  boot_defclass("Class",  rb_cModule);
 
-    rb_const_set(rb_cObject, rb_intern_const("BasicObject"), rb_cBasicObject);
+    rb_const_set(rb_cObject, rb_intern("BasicObject"), rb_cBasicObject);
     RBASIC_SET_CLASS(rb_cClass, rb_cClass);
     RBASIC_SET_CLASS(rb_cModule, rb_cClass);
     RBASIC_SET_CLASS(rb_cObject, rb_cClass);
@@ -631,12 +611,12 @@ rb_class_inherited(VALUE super, VALUE klass)
  * Defines a top-level class.
  * \param name   name of the class
  * \param super  a class from which the new class will derive.
+ *               NULL means \c Object class.
  * \return the created class
  * \throw TypeError if the constant name \a name is already taken but
  *                  the constant is not a \c Class.
- * \throw TypeError if the class is already defined but the class can not
+ * \throw NameError if the class is already defined but the class can not
  *                  be reopened because its superclass is not \a super.
- * \throw ArgumentError if the \a super is NULL.
  * \post top-level constant named \a name refers the returned class.
  *
  * \note if a class named \a name is already defined and its superclass is
@@ -652,8 +632,7 @@ 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 (%"PRIsVALUE")",
-		     name, rb_obj_class(klass));
+	    rb_raise(rb_eTypeError, "%s is not a class", name);
 	}
 	if (rb_class_real(RCLASS_SUPER(klass)) != super) {
 	    rb_raise(rb_eTypeError, "superclass mismatch for class %s", name);
@@ -661,7 +640,7 @@ rb_define_class(const char *name, VALUE super)
 	return klass;
     }
     if (!super) {
-	rb_raise(rb_eArgError, "no super class for `%s'", name);
+	rb_warn("no super class for `%s', Object assumed", name);
     }
     klass = rb_define_class_id(id, super);
     rb_vm_add_root_module(id, klass);
@@ -682,7 +661,7 @@ 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 TypeError if the class is already defined but the class can not
+ * \throw NameError 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.
  *
@@ -705,7 +684,7 @@ 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 TypeError if the class is already defined but the class can not
+ * \throw NameError 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.
  *
@@ -720,21 +699,16 @@ 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, "%"PRIsVALUE"::%"PRIsVALUE" is not a class"
-		     " (%"PRIsVALUE")",
-		     outer, rb_id2str(id), rb_obj_class(klass));
+	    rb_raise(rb_eTypeError, "%s is not a class", rb_id2name(id));
 	}
 	if (rb_class_real(RCLASS_SUPER(klass)) != super) {
-	    rb_raise(rb_eTypeError, "superclass mismatch for class "
-		     "%"PRIsVALUE"::%"PRIsVALUE""
-		     " (%"PRIsVALUE" is given but was %"PRIsVALUE")",
-		     outer, rb_id2str(id), RCLASS_SUPER(klass), super);
+	    rb_name_error(id, "%s is already defined", rb_id2name(id));
 	}
 	return klass;
     }
     if (!super) {
-	rb_raise(rb_eArgError, "no super class for `%"PRIsVALUE"::%"PRIsVALUE"'",
-		 rb_class_path(outer), rb_id2str(id));
+	rb_warn("no super class for `%s::%s', Object assumed",
+		rb_class2name(outer), rb_id2name(id));
     }
     klass = rb_define_class_id(id, super);
     rb_set_class_path_string(klass, outer, rb_id2str(id));
@@ -749,7 +723,9 @@ VALUE
 rb_module_new(void)
 {
     VALUE mdl = class_alloc(T_MODULE, rb_cModule);
-    RCLASS_M_TBL_INIT(mdl);
+
+    RCLASS_M_TBL(mdl) = st_init_numtable();
+
     return (VALUE)mdl;
 }
 
@@ -773,11 +749,9 @@ 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)) {
-	    rb_raise(rb_eTypeError, "%s is not a module (%"PRIsVALUE")",
-		     name, rb_obj_class(module));
-	}
-	return module;
+	if (RB_TYPE_P(module, T_MODULE))
+	    return module;
+	rb_raise(rb_eTypeError, "%s is not a module", rb_obj_classname(module));
     }
     module = rb_define_module_id(id);
     rb_vm_add_root_module(id, module);
@@ -799,12 +773,10 @@ 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)) {
-	    rb_raise(rb_eTypeError, "%"PRIsVALUE"::%"PRIsVALUE" is not a module"
-		     " (%"PRIsVALUE")",
-		     outer, rb_id2str(id), rb_obj_class(module));
-	}
-	return module;
+	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));
     }
     module = rb_define_module_id(id);
     rb_const_set(outer, id, module);
@@ -826,13 +798,12 @@ rb_include_class_new(VALUE module, VALUE super)
 	RCLASS_IV_TBL(module) = st_init_numtable();
     }
     if (!RCLASS_CONST_TBL(module)) {
-	RCLASS_CONST_TBL(module) = rb_id_table_create(0);
+	RCLASS_CONST_TBL(module) = st_init_numtable();
     }
     RCLASS_IV_TBL(klass) = RCLASS_IV_TBL(module);
     RCLASS_CONST_TBL(klass) = RCLASS_CONST_TBL(module);
 
-    RCLASS_M_TBL(OBJ_WB_UNPROTECT(klass)) =
-      RCLASS_M_TBL(OBJ_WB_UNPROTECT(RCLASS_ORIGIN(module))); /* TODO: unprotected? */
+    RCLASS_M_TBL(OBJ_WB_UNPROTECT(klass)) = RCLASS_M_TBL(OBJ_WB_UNPROTECT(RCLASS_ORIGIN(module)));
 
     RCLASS_SET_SUPER(klass, super);
     if (RB_TYPE_P(module, T_ICLASS)) {
@@ -847,48 +818,42 @@ rb_include_class_new(VALUE module, VALUE super)
     return (VALUE)klass;
 }
 
-static int include_modules_at(const VALUE klass, VALUE c, VALUE module, int search_super);
-
-static void
-ensure_includable(VALUE klass, VALUE module)
-{
-    rb_frozen_class_p(klass);
-    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);
-}
+static int include_modules_at(const VALUE klass, VALUE c, VALUE module);
 
 void
 rb_include_module(VALUE klass, VALUE module)
 {
     int changed = 0;
 
-    ensure_includable(klass, module);
+    rb_frozen_class_p(klass);
+
+    if (!RB_TYPE_P(module, T_MODULE)) {
+	Check_Type(module, T_MODULE);
+    }
 
-    changed = include_modules_at(klass, RCLASS_ORIGIN(klass), module, TRUE);
+    OBJ_INFECT(klass, module);
+
+    changed = include_modules_at(klass, RCLASS_ORIGIN(klass), module);
     if (changed < 0)
 	rb_raise(rb_eArgError, "cyclic include detected");
 }
 
-static enum rb_id_table_iterator_result
-add_refined_method_entry_i(ID key, VALUE value, void *data)
+static int
+add_refined_method_entry_i(st_data_t key, st_data_t value, st_data_t data)
 {
-    rb_add_refined_method_entry((VALUE)data, key);
-    return ID_TABLE_CONTINUE;
+    rb_add_refined_method_entry((VALUE) data, (ID) key);
+    return ST_CONTINUE;
 }
 
 static int
-include_modules_at(const VALUE klass, VALUE c, VALUE module, int search_super)
+include_modules_at(const VALUE klass, VALUE c, VALUE module)
 {
     VALUE p, iclass;
     int method_changed = 0, constant_changed = 0;
-    struct rb_id_table *const klass_m_tbl = RCLASS_M_TBL(RCLASS_ORIGIN(klass));
+    const st_table *const klass_m_tbl = RCLASS_M_TBL(RCLASS_ORIGIN(klass));
 
     while (module) {
 	int superclass_seen = FALSE;
-	struct rb_id_table *tbl;
 
 	if (RCLASS_ORIGIN(module) != module)
 	    goto skip;
@@ -896,42 +861,41 @@ include_modules_at(const VALUE klass, VALUE c, VALUE module, int search_super)
 	    return -1;
 	/* ignore if the module included already in superclasses */
 	for (p = RCLASS_SUPER(klass); p; p = RCLASS_SUPER(p)) {
-	    int type = BUILTIN_TYPE(p);
-	    if (type == T_ICLASS) {
+	    switch (BUILTIN_TYPE(p)) {
+	      case T_ICLASS:
 		if (RCLASS_M_TBL(p) == RCLASS_M_TBL(module)) {
 		    if (!superclass_seen) {
 			c = p;  /* move insertion point */
 		    }
 		    goto skip;
 		}
-	    }
-	    else if (type == T_CLASS) {
-		if (!search_super) break;
+		break;
+	      case T_CLASS:
 		superclass_seen = TRUE;
+		break;
 	    }
 	}
 	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 (BUILTIN_TYPE(module) == T_ICLASS) {
+	    rb_module_add_to_subclasses_list(RBASIC(module)->klass, iclass);
+	} else {
+	    rb_module_add_to_subclasses_list(module, iclass);
 	}
 
 	if (FL_TEST(klass, RMODULE_IS_REFINEMENT)) {
 	    VALUE refined_class =
 		rb_refinement_module_get_refined_class(klass);
 
-	    rb_id_table_foreach(RMODULE_M_TBL(module), add_refined_method_entry_i, (void *)refined_class);
+	    st_foreach(RMODULE_M_TBL(module), add_refined_method_entry_i,
+		       (st_data_t) refined_class);
 	    FL_SET(c, RMODULE_INCLUDED_INTO_REFINEMENT);
 	}
-
-	tbl = RMODULE_M_TBL(module);
-	if (tbl && rb_id_table_size(tbl)) method_changed = 1;
-
-	tbl = RMODULE_CONST_TBL(module);
-	if (tbl && rb_id_table_size(tbl)) constant_changed = 1;
+	if (RMODULE_M_TBL(module) && RMODULE_M_TBL(module)->num_entries)
+	    method_changed = 1;
+	if (RMODULE_CONST_TBL(module) && RMODULE_CONST_TBL(module)->num_entries)
+	    constant_changed = 1;
       skip:
 	module = RCLASS_SUPER(module);
     }
@@ -942,53 +906,59 @@ include_modules_at(const VALUE klass, VALUE c, VALUE module, int search_super)
     return method_changed;
 }
 
-static enum rb_id_table_iterator_result
-move_refined_method(ID key, VALUE value, void *data)
+static int
+move_refined_method(st_data_t key, st_data_t value, st_data_t data)
 {
     rb_method_entry_t *me = (rb_method_entry_t *) value;
-    VALUE klass = (VALUE)data;
-    struct rb_id_table *tbl = RCLASS_M_TBL(klass);
+    st_table *tbl = (st_table *) data;
 
     if (me->def->type == VM_METHOD_TYPE_REFINED) {
-	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;
+	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;
 	}
 	else {
-	    rb_id_table_insert(tbl, key, (VALUE)me);
-	    return ID_TABLE_DELETE;
+	    st_add_direct(tbl, key, (st_data_t) me);
+	    return ST_DELETE;
 	}
     }
     else {
-	return ID_TABLE_CONTINUE;
+	return ST_CONTINUE;
     }
 }
 
 void
 rb_prepend_module(VALUE klass, VALUE module)
 {
+    void rb_vm_check_redefinition_by_prepend(VALUE klass);
     VALUE origin;
     int changed = 0;
 
-    ensure_includable(klass, module);
+    rb_frozen_class_p(klass);
+
+    Check_Type(module, T_MODULE);
+
+    OBJ_INFECT(klass, module);
 
     origin = RCLASS_ORIGIN(klass);
     if (origin == klass) {
 	origin = class_alloc(T_ICLASS, klass);
-	OBJ_WB_UNPROTECT(origin); /* TODO: conservative shading. Need more survey. */
+	OBJ_WB_UNPROTECT(origin); /* TODO: conservertive shading. Need more survery. */
 	RCLASS_SET_SUPER(origin, RCLASS_SUPER(klass));
 	RCLASS_SET_SUPER(klass, origin);
-	RCLASS_SET_ORIGIN(klass, origin);
+	RCLASS_ORIGIN(klass) = origin;
 	RCLASS_M_TBL(origin) = RCLASS_M_TBL(klass);
-	RCLASS_M_TBL_INIT(klass);
-	rb_id_table_foreach(RCLASS_M_TBL(origin), move_refined_method, (void *)klass);
+	RCLASS_M_TBL(klass) = st_init_numtable();
+	st_foreach(RCLASS_M_TBL(origin), move_refined_method,
+		   (st_data_t) RCLASS_M_TBL(klass));
     }
-    changed = include_modules_at(klass, klass, module, FALSE);
+    changed = include_modules_at(klass, klass, module);
     if (changed < 0)
 	rb_raise(rb_eArgError, "cyclic prepend detected");
     if (changed) {
@@ -1067,18 +1037,16 @@ rb_mod_include_p(VALUE mod, VALUE mod2)
  *  call-seq:
  *     mod.ancestors -> array
  *
- *  Returns a list of modules included/prepended in <i>mod</i>
- *  (including <i>mod</i> itself).
+ *  Returns a list of modules included in <i>mod</i> (including
+ *  <i>mod</i> itself).
  *
  *     module Mod
  *       include Math
  *       include Comparable
- *       prepend Enumerable
  *     end
  *
- *     Mod.ancestors        #=> [Enumerable, Mod, Comparable, Math]
- *     Math.ancestors       #=> [Math]
- *     Enumerable.ancestors #=> [Enumerable]
+ *     Mod.ancestors    #=> [Mod, Comparable, Math]
+ *     Math.ancestors   #=> [Math]
  */
 
 VALUE
@@ -1097,89 +1065,83 @@ rb_mod_ancestors(VALUE mod)
     return ary;
 }
 
-static void
-ins_methods_push(st_data_t name, st_data_t ary)
-{
-    rb_ary_push((VALUE)ary, ID2SYM((ID)name));
-}
+#define VISI(x) ((x)&NOEX_MASK)
+#define VISI_CHECK(x,f) (VISI(x) == (f))
 
 static int
-ins_methods_i(st_data_t name, st_data_t type, st_data_t ary)
+ins_methods_push(ID name, long type, VALUE ary, long visi)
 {
-    switch ((rb_method_visibility_t)type) {
-      case METHOD_VISI_UNDEF:
-      case METHOD_VISI_PRIVATE:
+    if (type == -1) return ST_CONTINUE;
+
+    switch (visi) {
+      case NOEX_PRIVATE:
+      case NOEX_PROTECTED:
+      case NOEX_PUBLIC:
+	visi = (type == visi);
 	break;
-      default: /* everything but private */
-	ins_methods_push(name, ary);
+      default:
+	visi = (type != NOEX_PRIVATE);
 	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 */
+}
+
+static int
 ins_methods_prot_i(st_data_t name, st_data_t type, st_data_t ary)
 {
-    if ((rb_method_visibility_t)type == METHOD_VISI_PROTECTED) {
-	ins_methods_push(name, ary);
-    }
-    return ST_CONTINUE;
+    return ins_methods_push((ID)name, (long)type, (VALUE)ary, NOEX_PROTECTED);
 }
 
 static int
 ins_methods_priv_i(st_data_t name, st_data_t type, st_data_t ary)
 {
-    if ((rb_method_visibility_t)type == METHOD_VISI_PRIVATE) {
-	ins_methods_push(name, ary);
-    }
-    return ST_CONTINUE;
+    return ins_methods_push((ID)name, (long)type, (VALUE)ary, NOEX_PRIVATE);
 }
 
 static int
 ins_methods_pub_i(st_data_t name, st_data_t type, st_data_t ary)
 {
-    if ((rb_method_visibility_t)type == METHOD_VISI_PUBLIC) {
-	ins_methods_push(name, ary);
-    }
-    return ST_CONTINUE;
+    return ins_methods_push((ID)name, (long)type, (VALUE)ary, NOEX_PUBLIC);
 }
 
-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)
+static int
+method_entry_i(st_data_t key, st_data_t value, st_data_t data)
 {
     const rb_method_entry_t *me = (const rb_method_entry_t *)value;
-    struct method_entry_arg *arg = (struct method_entry_arg *)data;
-    rb_method_visibility_t type;
+    st_table *list = (st_table *)data;
+    long type;
 
-    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 (me && me->def->type == VM_METHOD_TYPE_REFINED) {
+	me = rb_resolve_refined_method(Qnil, me, NULL);
+	if (!me) return ST_CONTINUE;
     }
-    if (!st_lookup(arg->list, key, 0)) {
+    if (!st_lookup(list, key, 0)) {
 	if (UNDEFINED_METHOD_ENTRY_P(me)) {
-	    type = METHOD_VISI_UNDEF; /* none */
+	    type = -1; /* none */
 	}
 	else {
-	    type = METHOD_ENTRY_VISI(me);
+	    type = VISI(me->flag);
 	}
-	st_add_direct(arg->list, key, (st_data_t)type);
+	st_add_direct(list, key, type);
     }
-    return ID_TABLE_CONTINUE;
+    return ST_CONTINUE;
 }
 
 static VALUE
-class_instance_method_list(int argc, const VALUE *argv, VALUE mod, int obj, int (*func) (st_data_t, st_data_t, st_data_t))
+class_instance_method_list(int argc, VALUE *argv, VALUE mod, int obj, int (*func) (st_data_t, st_data_t, st_data_t))
 {
     VALUE ary;
     int recur, prepended = 0;
-    struct method_entry_arg me_arg;
+    st_table *list;
 
     if (argc == 0) {
 	recur = TRUE;
@@ -1195,17 +1157,16 @@ class_instance_method_list(int argc, const VALUE *argv, VALUE mod, int obj, int
 	prepended = 1;
     }
 
-    me_arg.list = st_init_numtable();
-    me_arg.recur = recur;
+    list = st_init_numtable();
     for (; mod; mod = RCLASS_SUPER(mod)) {
-	if (RCLASS_M_TBL(mod)) rb_id_table_foreach(RCLASS_M_TBL(mod), method_entry_i, &me_arg);
+	if (RCLASS_M_TBL(mod)) st_foreach(RCLASS_M_TBL(mod), method_entry_i, (st_data_t)list);
 	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(me_arg.list, func, ary);
-    st_free_table(me_arg.list);
+    st_foreach(list, func, ary);
+    st_free_table(list);
 
     return ary;
 }
@@ -1216,29 +1177,29 @@ class_instance_method_list(int argc, const VALUE *argv, VALUE mod, int obj, int
  *
  *  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. If the optional
- *  parameter is <code>false</code>, the methods of any ancestors are not included.
+ *  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.
  *
  *     module A
  *       def method1()  end
  *     end
  *     class B
- *       include A
  *       def method2()  end
  *     end
  *     class C < B
  *       def method3()  end
  *     end
  *
- *     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
+ *     A.instance_methods                #=> [:method1]
+ *     B.instance_methods(false)         #=> [:method2]
+ *     C.instance_methods(false)         #=> [:method3]
+ *     C.instance_methods(true).length   #=> 43
  */
 
 VALUE
-rb_class_instance_methods(int argc, const VALUE *argv, VALUE mod)
+rb_class_instance_methods(int argc, VALUE *argv, VALUE mod)
 {
     return class_instance_method_list(argc, argv, mod, 0, ins_methods_i);
 }
@@ -1248,12 +1209,12 @@ rb_class_instance_methods(int argc, const 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 <code>false</code>, the
- *  methods of any ancestors are not included.
+ *  <i>mod</i>. If the optional parameter is not <code>false</code>, the
+ *  methods of any ancestors are included.
  */
 
 VALUE
-rb_class_protected_instance_methods(int argc, const VALUE *argv, VALUE mod)
+rb_class_protected_instance_methods(int argc, VALUE *argv, VALUE mod)
 {
     return class_instance_method_list(argc, argv, mod, 0, ins_methods_prot_i);
 }
@@ -1263,8 +1224,8 @@ rb_class_protected_instance_methods(int argc, const 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 <code>false</code>, the
- *  methods of any ancestors are not included.
+ *  <i>mod</i>. If the optional parameter is not <code>false</code>, the
+ *  methods of any ancestors are included.
  *
  *     module Mod
  *       def method1()  end
@@ -1276,7 +1237,7 @@ rb_class_protected_instance_methods(int argc, const VALUE *argv, VALUE mod)
  */
 
 VALUE
-rb_class_private_instance_methods(int argc, const VALUE *argv, VALUE mod)
+rb_class_private_instance_methods(int argc, VALUE *argv, VALUE mod)
 {
     return class_instance_method_list(argc, argv, mod, 0, ins_methods_priv_i);
 }
@@ -1286,12 +1247,12 @@ rb_class_private_instance_methods(int argc, const 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 <code>false</code>, the methods of
- *  any ancestors are not included.
+ *  If the optional parameter is not <code>false</code>, the methods of
+ *  any ancestors are included.
  */
 
 VALUE
-rb_class_public_instance_methods(int argc, const VALUE *argv, VALUE mod)
+rb_class_public_instance_methods(int argc, VALUE *argv, VALUE mod)
 {
     return class_instance_method_list(argc, argv, mod, 0, ins_methods_pub_i);
 }
@@ -1303,8 +1264,8 @@ rb_class_public_instance_methods(int argc, const VALUE *argv, VALUE mod)
  *  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 optional parameter is <code>false</code>, it
- *  returns an array of <i>obj<i>'s public and protected singleton methods,
+ *  If the <i>regular</i> parameter is set to <code>false</code>,
+ *  Returns an array of obj's public and protected singleton methods,
  *  the array will not include methods in modules included in <i>obj</i>.
  *
  *     class Klass
@@ -1315,7 +1276,7 @@ rb_class_public_instance_methods(int argc, const VALUE *argv, VALUE mod)
  *     k.methods[0..9]    #=> [:klass_method, :nil?, :===,
  *                        #    :==~, :!, :eql?
  *                        #    :hash, :<=>, :class, :singleton_class]
- *     k.methods.length   #=> 56
+ *     k.methods.length   #=> 57
  *
  *     k.methods(false)   #=> []
  *     def k.singleton_method; end
@@ -1327,13 +1288,22 @@ rb_class_public_instance_methods(int argc, const VALUE *argv, VALUE mod)
  */
 
 VALUE
-rb_obj_methods(int argc, const VALUE *argv, VALUE obj)
+rb_obj_methods(int argc, VALUE *argv, VALUE obj)
 {
-    rb_check_arity(argc, 0, 1);
-    if (argc > 0 && !RTEST(argv[0])) {
+  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;
+	}
 	return rb_obj_singleton_methods(argc, argv, obj);
     }
-    return class_instance_method_list(argc, argv, CLASS_OF(obj), 1, ins_methods_i);
 }
 
 /*
@@ -1346,7 +1316,7 @@ rb_obj_methods(int argc, const VALUE *argv, VALUE obj)
  */
 
 VALUE
-rb_obj_protected_methods(int argc, const VALUE *argv, VALUE obj)
+rb_obj_protected_methods(int argc, VALUE *argv, VALUE obj)
 {
     return class_instance_method_list(argc, argv, CLASS_OF(obj), 1, ins_methods_prot_i);
 }
@@ -1361,7 +1331,7 @@ rb_obj_protected_methods(int argc, const VALUE *argv, VALUE obj)
  */
 
 VALUE
-rb_obj_private_methods(int argc, const VALUE *argv, VALUE obj)
+rb_obj_private_methods(int argc, VALUE *argv, VALUE obj)
 {
     return class_instance_method_list(argc, argv, CLASS_OF(obj), 1, ins_methods_priv_i);
 }
@@ -1376,7 +1346,7 @@ rb_obj_private_methods(int argc, const VALUE *argv, VALUE obj)
  */
 
 VALUE
-rb_obj_public_methods(int argc, const VALUE *argv, VALUE obj)
+rb_obj_public_methods(int argc, VALUE *argv, VALUE obj)
 {
     return class_instance_method_list(argc, argv, CLASS_OF(obj), 1, ins_methods_pub_i);
 }
@@ -1415,11 +1385,10 @@ rb_obj_public_methods(int argc, const VALUE *argv, VALUE obj)
  */
 
 VALUE
-rb_obj_singleton_methods(int argc, const VALUE *argv, VALUE obj)
+rb_obj_singleton_methods(int argc, VALUE *argv, VALUE obj)
 {
     VALUE recur, ary, klass, origin;
-    struct method_entry_arg me_arg;
-    struct rb_id_table *mtbl;
+    st_table *list, *mtbl;
 
     if (argc == 0) {
 	recur = Qtrue;
@@ -1429,21 +1398,22 @@ rb_obj_singleton_methods(int argc, const VALUE *argv, VALUE obj)
     }
     klass = CLASS_OF(obj);
     origin = RCLASS_ORIGIN(klass);
-    me_arg.list = st_init_numtable();
-    me_arg.recur = RTEST(recur);
+    list = st_init_numtable();
     if (klass && FL_TEST(klass, FL_SINGLETON)) {
-	if ((mtbl = RCLASS_M_TBL(origin)) != 0) rb_id_table_foreach(mtbl, method_entry_i, &me_arg);
+	if ((mtbl = RCLASS_M_TBL(origin)) != 0)
+	    st_foreach(mtbl, method_entry_i, (st_data_t)list);
 	klass = RCLASS_SUPER(klass);
     }
     if (RTEST(recur)) {
 	while (klass && (FL_TEST(klass, FL_SINGLETON) || RB_TYPE_P(klass, T_ICLASS))) {
-	    if (klass != origin && (mtbl = RCLASS_M_TBL(klass)) != 0) rb_id_table_foreach(mtbl, method_entry_i, &me_arg);
+	    if (klass != origin && (mtbl = RCLASS_M_TBL(klass)) != 0)
+		st_foreach(mtbl, method_entry_i, (st_data_t)list);
 	    klass = RCLASS_SUPER(klass);
 	}
     }
     ary = rb_ary_new();
-    st_foreach(me_arg.list, ins_methods_i, ary);
-    st_free_table(me_arg.list);
+    st_foreach(list, ins_methods_i, ary);
+    st_free_table(list);
 
     return ary;
 }
@@ -1508,48 +1478,31 @@ rb_obj_singleton_methods(int argc, const 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, METHOD_VISI_PUBLIC);
+    rb_add_method_cfunc(klass, mid, func, argc, NOEX_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, METHOD_VISI_PUBLIC);
+    rb_add_method_cfunc(klass, rb_intern(name), func, argc, NOEX_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, METHOD_VISI_PROTECTED);
+    rb_add_method_cfunc(klass, rb_intern(name), func, argc, NOEX_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, METHOD_VISI_PRIVATE);
+    rb_add_method_cfunc(klass, rb_intern(name), func, argc, NOEX_PRIVATE);
 }
 
 void
 rb_undef_method(VALUE klass, const char *name)
 {
-    rb_add_method(klass, rb_intern(name), VM_METHOD_TYPE_UNDEF, 0, METHOD_VISI_UNDEF);
-}
-
-static enum rb_id_table_iterator_result
-undef_method_i(ID name, VALUE value, void *data)
-{
-    VALUE klass = (VALUE)data;
-    rb_add_method(klass, name, VM_METHOD_TYPE_UNDEF, 0, METHOD_VISI_UNDEF);
-    return ID_TABLE_CONTINUE;
-}
-
-void
-rb_undef_methods_from(VALUE klass, VALUE super)
-{
-    struct rb_id_table *mtbl = RCLASS_M_TBL(super);
-    if (mtbl) {
-	rb_id_table_foreach(mtbl, undef_method_i, (void *)klass);
-    }
+    rb_add_method(klass, rb_intern(name), VM_METHOD_TYPE_UNDEF, 0, NOEX_UNDEF);
 }
 
 /*!
@@ -1595,8 +1548,7 @@ singleton_class_of(VALUE obj)
 {
     VALUE klass;
 
-    if (FIXNUM_P(obj) || FLONUM_P(obj) || STATIC_SYM_P(obj)) {
-      no_singleton:
+    if (FIXNUM_P(obj) || FLONUM_P(obj) || SYMBOL_P(obj)) {
 	rb_raise(rb_eTypeError, "can't define singleton");
     }
     if (SPECIAL_CONST_P(obj)) {
@@ -1606,21 +1558,18 @@ singleton_class_of(VALUE obj)
 	return klass;
     }
     else {
-	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;
+	enum ruby_value_type type = BUILTIN_TYPE(obj);
+	if (type == T_FLOAT || type == T_BIGNUM) {
+	    rb_raise(rb_eTypeError, "can't define singleton");
 	}
     }
 
-    klass = RBASIC(obj)->klass;
-    if (!(FL_TEST(klass, FL_SINGLETON) &&
-	  rb_ivar_get(klass, id_attached) == obj)) {
-	rb_serial_t serial = RCLASS_SERIAL(klass);
-	klass = rb_make_metaclass(obj, klass);
-	RCLASS_SERIAL(klass) = serial;
+    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);
     }
 
     if (OBJ_TAINTED(obj)) {
@@ -1629,24 +1578,11 @@ singleton_class_of(VALUE obj)
     else {
 	FL_UNSET(klass, FL_TAINT);
     }
-    RB_FL_SET_RAW(klass, RB_OBJ_FROZEN_RAW(obj));
+    if (OBJ_FROZEN(obj)) OBJ_FREEZE(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.
@@ -1672,7 +1608,7 @@ rb_singleton_class_get(VALUE obj)
  * Returns the singleton class of \a obj. Creates it if necessary.
  *
  * \param obj an arbitrary object.
- * \throw TypeError if \a obj is a Integer or a Symbol.
+ * \throw TypeError if \a obj is a Fixnum or a Symbol.
  * \return the singleton class.
  *
  * \post \a obj has its own singleton class.
@@ -1773,137 +1709,18 @@ rb_define_attr(VALUE klass, const char *name, int read, int write)
     rb_attr(klass, rb_intern(name), read, write, FALSE);
 }
 
-VALUE
-rb_keyword_error_new(const char *error, VALUE keys)
-{
-    const VALUE *ptr = RARRAY_CONST_PTR(keys);
-    long i = 0, len = RARRAY_LEN(keys);
-    VALUE error_message = rb_sprintf("%s keyword%.*s", error, len > 1, "s");
-
-    if (len > 0) {
-	rb_str_cat_cstr(error_message, ": ");
-	while (1) {
-	    const VALUE k = ptr[i];
-	    Check_Type(k, T_SYMBOL); /* wrong hash is given to rb_get_kwargs */
-	    rb_str_append(error_message, rb_sym2str(k));
-	    if (++i >= len) break;
-	    rb_str_cat_cstr(error_message, ", ");
-	}
-    }
-
-    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);
-    int i;
-    for (i = 0; i < keywords; i++) {
-	st_data_t key = ID2SYM(table[i]);
-	st_delete(tbl, &key, NULL);
-    }
-    rb_keyword_error("unknown", rb_hash_keys(hash));
-}
-
-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)
+rb_obj_basic_to_s_p(VALUE obj)
 {
-    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
+    const rb_method_entry_t *me = rb_method_entry(CLASS_OF(obj), rb_intern("to_s"), 0);
+    if (me && me->def && me->def->type == VM_METHOD_TYPE_CFUNC &&
+	me->def->body.cfunc.func == rb_any_to_s)
+	return 1;
+    return 0;
 }
 
-#undef rb_scan_args
+#include <stdarg.h>
+
 int
 rb_scan_args(int argc, const VALUE *argv, const char *fmt, ...)
 {
@@ -1913,8 +1730,8 @@ rb_scan_args(int argc, const VALUE *argv, const char *fmt, ...)
     va_list vargs;
     int f_var = 0, f_hash = 0, f_block = 0;
     int n_lead = 0, n_opt = 0, n_trail = 0, n_mand;
-    int argi = 0, last_idx = -1;
-    VALUE hash = Qnil, last_hash = 0;
+    int argi = 0;
+    VALUE hash = Qnil;
 
     if (ISDIGIT(*p)) {
 	n_lead = *p - '0';
@@ -1922,16 +1739,22 @@ rb_scan_args(int argc, const VALUE *argv, const char *fmt, ...)
 	if (ISDIGIT(*p)) {
 	    n_opt = *p - '0';
 	    p++;
+	    if (ISDIGIT(*p)) {
+		n_trail = *p - '0';
+		p++;
+		goto block_arg;
+	    }
 	}
     }
     if (*p == '*') {
 	f_var = 1;
 	p++;
+	if (ISDIGIT(*p)) {
+	    n_trail = *p - '0';
+	    p++;
+	}
     }
-    if (ISDIGIT(*p)) {
-	n_trail = *p - '0';
-	p++;
-    }
+  block_arg:
     if (*p == ':') {
 	f_hash = 1;
 	p++;
@@ -1963,25 +1786,21 @@ rb_scan_args(int argc, const VALUE *argv, const char *fmt, ...)
 	}
 	else {
 	    hash = rb_check_hash_type(last);
-	    if (!NIL_P(hash)) {
-		VALUE opts = rb_extract_keywords(&hash);
-		if (!(last_hash = hash)) argc--;
-		else last_idx = argc - 1;
-		hash = opts ? opts : Qnil;
-	    }
+	    if (!NIL_P(hash))
+		argc--;
 	}
     }
     /* capture leading mandatory arguments */
     for (i = n_lead; i-- > 0; ) {
 	var = va_arg(vargs, VALUE *);
-	if (var) *var = (argi == last_idx) ? last_hash : argv[argi];
+	if (var) *var = argv[argi];
 	argi++;
     }
     /* capture optional arguments */
     for (i = n_opt; i-- > 0; ) {
 	var = va_arg(vargs, VALUE *);
 	if (argi < argc - n_trail) {
-	    if (var) *var = (argi == last_idx) ? last_hash : argv[argi];
+	    if (var) *var = argv[argi];
 	    argi++;
 	}
 	else {
@@ -1994,11 +1813,7 @@ rb_scan_args(int argc, const VALUE *argv, const char *fmt, ...)
 
 	var = va_arg(vargs, VALUE *);
 	if (0 < n_var) {
-	    if (var) {
-		int f_last = (last_idx + 1 == argc - n_trail);
-		*var = rb_ary_new4(n_var-f_last, &argv[argi]);
-		if (f_last) rb_ary_push(*var, last_hash);
-	    }
+	    if (var) *var = rb_ary_new4(n_var, &argv[argi]);
 	    argi += n_var;
 	}
 	else {
@@ -2008,7 +1823,7 @@ rb_scan_args(int argc, const VALUE *argv, const char *fmt, ...)
     /* capture trailing mandatory arguments */
     for (i = n_trail; i-- > 0; ) {
 	var = va_arg(vargs, VALUE *);
-	if (var) *var = (argi == last_idx) ? last_hash : argv[argi];
+	if (var) *var = argv[argi];
 	argi++;
     }
     /* capture an option hash - phase 2: assignment */
@@ -2036,12 +1851,6 @@ rb_scan_args(int argc, const VALUE *argv, const char *fmt, ...)
     return argc;
 }
 
-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 2175f67eba..e94c4756ea 100644
--- a/common.mk
+++ b/common.mk
@@ -8,77 +8,39 @@ dll: $(LIBRUBY_SO)
 V = 0
 Q1 = $(V:1=)
 Q = $(Q1:0=@)
-ECHO0 = $(ECHO1:0=echo)
-ECHO = @$(ECHO0)
-
-mflags = $(MFLAGS)
-gnumake_recursive =
-enable_shared = $(ENABLE_SHARED:no=)
-
-UNICODE_VERSION = 10.0.0
-UNICODE_EMOJI_VERSION = 5.0
-
-### set the following environment variable or uncomment the line if
-### the Unicode data files should be updated completely on every update ('make up',...).
-# ALWAYS_UPDATE_UNICODE = yes
-UNICODE_DATA_DIR = enc/unicode/data/$(UNICODE_VERSION)/ucd
-UNICODE_SRC_DATA_DIR = $(srcdir)/$(UNICODE_DATA_DIR)
-UNICODE_SRC_EMOJI_DATA_DIR = $(srcdir)/enc/unicode/data/emoji/$(UNICODE_EMOJI_VERSION)
-UNICODE_HDR_DIR = $(srcdir)/enc/unicode/$(UNICODE_VERSION)
-UNICODE_DATA_HEADERS = \
-	$(UNICODE_HDR_DIR)/casefold.h \
-	$(UNICODE_HDR_DIR)/name2ctype.h \
-	$(empty)
-
-RUBY_RELEASE_DATE = $(RUBY_RELEASE_YEAR)-$(RUBY_RELEASE_MONTH)-$(RUBY_RELEASE_DAY)
+ECHO = $(ECHO1:0=@echo)
+
 RUBYLIB       = $(PATH_SEPARATOR)
 RUBYOPT       = -
 RUN_OPTS      = --disable-gems
 
-INCFLAGS = -I. -I$(arch_hdrdir) -I$(hdrdir) -I$(srcdir) -I$(UNICODE_HDR_DIR)
-
-GEM_HOME =
-GEM_PATH =
-GEM_VENDOR =
-
-SIMPLECOV_GIT_URL = git://github.com/colszowka/simplecov.git
-SIMPLECOV_GIT_REF = v0.15.0
-SIMPLECOV_HTML_GIT_URL = git://github.com/colszowka/simplecov-html.git
-SIMPLECOV_HTML_GIT_REF = v0.10.2
-DOCLIE_GIT_URL = git://github.com/ms-ati/docile.git
-DOCLIE_GIT_REF = v1.1.5
+SPEC_GIT_BASE = git://github.com/nurse
+MSPEC_GIT_URL = $(SPEC_GIT_BASE)/mspec.git
+RUBYSPEC_GIT_URL = $(SPEC_GIT_BASE)/rubyspec.git
 
 STATIC_RUBY   = static-ruby
 
-TIMESTAMPDIR  = $(EXTOUT)/.timestamp
 EXTCONF       = extconf.rb
 LIBRUBY_EXTS  = ./.libruby-with-ext.time
 REVISION_H    = ./.revision.time
-PLATFORM_D    = $(TIMESTAMPDIR)/.$(PLATFORM_DIR).time
-ENC_TRANS_D   = $(TIMESTAMPDIR)/.enc-trans.time
+PLATFORM_D    = ./$(PLATFORM_DIR)/.time
 RDOCOUT       = $(EXTOUT)/rdoc
-HTMLOUT       = $(EXTOUT)/html
 CAPIOUT       = doc/capi
 
-INITOBJS      = dmyext.$(OBJEXT) dmyenc.$(OBJEXT)
+DMYEXT	      = dmyext.$(OBJEXT)
 NORMALMAINOBJ = main.$(OBJEXT)
 MAINOBJ       = $(NORMALMAINOBJ)
-DLDOBJS	      = $(INITOBJS)
+EXTOBJS	      =
+DLDOBJS	      = $(DMYEXT)
 EXTSOLIBS     =
-MINIOBJS      = $(ARCHMINIOBJS) miniinit.$(OBJEXT) dmyext.$(OBJEXT) miniprelude.$(OBJEXT)
+MINIOBJS      = $(ARCHMINIOBJS) miniinit.$(OBJEXT) miniprelude.$(OBJEXT)
 ENC_MK        = enc.mk
-MAKE_ENC      = -f $(ENC_MK) V="$(V)" UNICODE_HDR_DIR="$(UNICODE_HDR_DIR)" \
-		RUBY="$(MINIRUBY)" MINIRUBY="$(MINIRUBY)" $(mflags)
 
 COMMONOBJS    = array.$(OBJEXT) \
 		bignum.$(OBJEXT) \
 		class.$(OBJEXT) \
 		compar.$(OBJEXT) \
-		compile.$(OBJEXT) \
 		complex.$(OBJEXT) \
-		cont.$(OBJEXT) \
-		debug.$(OBJEXT) \
-		debug_counter.$(OBJEXT) \
 		dir.$(OBJEXT) \
 		dln_find.$(OBJEXT) \
 		encoding.$(OBJEXT) \
@@ -86,13 +48,13 @@ COMMONOBJS    = array.$(OBJEXT) \
 		enumerator.$(OBJEXT) \
 		error.$(OBJEXT) \
 		eval.$(OBJEXT) \
+		load.$(OBJEXT) \
+		proc.$(OBJEXT) \
 		file.$(OBJEXT) \
 		gc.$(OBJEXT) \
 		hash.$(OBJEXT) \
 		inits.$(OBJEXT) \
 		io.$(OBJEXT) \
-		iseq.$(OBJEXT) \
-		load.$(OBJEXT) \
 		marshal.$(OBJEXT) \
 		math.$(OBJEXT) \
 		node.$(OBJEXT) \
@@ -100,7 +62,6 @@ COMMONOBJS    = array.$(OBJEXT) \
 		object.$(OBJEXT) \
 		pack.$(OBJEXT) \
 		parse.$(OBJEXT) \
-		proc.$(OBJEXT) \
 		process.$(OBJEXT) \
 		random.$(OBJEXT) \
 		range.$(OBJEXT) \
@@ -120,18 +81,20 @@ COMMONOBJS    = array.$(OBJEXT) \
 		strftime.$(OBJEXT) \
 		string.$(OBJEXT) \
 		struct.$(OBJEXT) \
-		symbol.$(OBJEXT) \
-		thread.$(OBJEXT) \
 		time.$(OBJEXT) \
 		transcode.$(OBJEXT) \
 		util.$(OBJEXT) \
 		variable.$(OBJEXT) \
 		version.$(OBJEXT) \
+		compile.$(OBJEXT) \
+		debug.$(OBJEXT) \
+		iseq.$(OBJEXT) \
 		vm.$(OBJEXT) \
-		vm_backtrace.$(OBJEXT) \
 		vm_dump.$(OBJEXT) \
+		vm_backtrace.$(OBJEXT) \
 		vm_trace.$(OBJEXT) \
-		$(DTRACE_OBJ) \
+		thread.$(OBJEXT) \
+		cont.$(OBJEXT) \
 		$(BUILTIN_ENCOBJS) \
 		$(BUILTIN_TRANSOBJS) \
 		$(MISSING)
@@ -142,24 +105,21 @@ EXPORTOBJS    = $(DLNOBJ) \
 		$(COMMONOBJS)
 
 OBJS          = $(EXPORTOBJS) prelude.$(OBJEXT)
-ALLOBJS       = $(NORMALMAINOBJ) $(MINIOBJS) $(COMMONOBJS) $(INITOBJS)
+ALLOBJS       = $(NORMALMAINOBJ) $(MINIOBJS) $(COMMONOBJS) $(DMYEXT)
 
 GOLFOBJS      = goruby.$(OBJEXT) golf_prelude.$(OBJEXT)
 
-DEFAULT_PRELUDES = $(GEM_PRELUDE)
-PRELUDE_SCRIPTS = $(srcdir)/prelude.rb $(DEFAULT_PRELUDES)
-GEM_PRELUDE   = $(srcdir)/gem_prelude.rb
-PRELUDES      = {$(srcdir)}prelude.c {$(srcdir)}miniprelude.c
-GOLFPRELUDES  = {$(srcdir)}golf_prelude.c
+PRELUDE_SCRIPTS = $(srcdir)/prelude.rb $(srcdir)/enc/prelude.rb $(DEFAULT_PRELUDES)
+GEM_PRELUDE = $(srcdir)/gem_prelude.rb
+PRELUDES      = prelude.c miniprelude.c
+GOLFPRELUDES = 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='$(MINIRUBY)'" \
-		--gnumake=$(gnumake) --extflags="$(EXTLDFLAGS)" \
-		--
+		--make-flags="V=$(V) MINIRUBY='$(MINIRUBY)'" --
 INSTRUBY      =	$(SUDO) $(RUNRUBY) -r./$(arch)-fake $(srcdir)/tool/rbinstall.rb
 INSTRUBY_ARGS =	$(SCRIPT_ARGS) \
 		--data-mode=$(INSTALL_DATA_MODE) \
@@ -173,24 +133,21 @@ 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
 
-COMPILE_PRELUDE = $(srcdir)/tool/generic_erb.rb $(srcdir)/template/prelude.c.tmpl
+BOOTSTRAPRUBY = $(BASERUBY)
 
-SHOWFLAGS = showflags
+COMPILE_PRELUDE = $(MINIRUBY) -I$(srcdir) $(srcdir)/tool/compile_prelude.rb
 
-all: $(SHOWFLAGS) main docs
+all: showflags main docs
 
-main: $(SHOWFLAGS) exts $(ENCSTATIC:static=lib)encs
+main: showflags $(EXTSTATIC:static=lib)encs exts
 	@$(NULLCMD)
 
 .PHONY: showflags
-exts enc trans: $(SHOWFLAGS)
+exts enc trans: showflags
 showflags:
 	$(MESSAGE_BEGIN) \
 	"	CC = $(CC)" \
@@ -201,9 +158,6 @@ showflags:
 	"	CPPFLAGS = $(CPPFLAGS)" \
 	"	DLDFLAGS = $(DLDFLAGS)" \
 	"	SOLIBS = $(SOLIBS)" \
-	"	LANG = $(LANG)" \
-	"	LC_ALL = $(LC_ALL)" \
-	"	LC_CTYPE = $(LC_CTYPE)" \
 	$(MESSAGE_END)
 	-@$(CC_VERSION)
 
@@ -213,77 +167,52 @@ showconfig:
 	$(configure_args) \
 	$(ECHO_END)
 
-EXTS_NOTE = -f $(EXTS_MK) $(mflags) RUBY="$(MINIRUBY)" top_srcdir="$(srcdir)" note
-
 exts: build-ext
 
 EXTS_MK = exts.mk
-$(EXTS_MK): ext/configure-ext.mk $(TIMESTAMPDIR)/$(arch)/.time $(srcdir)/template/exts.mk.tmpl
-	$(Q)$(MAKE) -f ext/configure-ext.mk $(mflags) V=$(V) EXTSTATIC=$(EXTSTATIC) \
-		gnumake=$(gnumake) MINIRUBY="$(MINIRUBY)" \
-		EXTLDFLAGS="$(EXTLDFLAGS)" srcdir="$(srcdir)"
+$(EXTS_MK): $(MKFILES) all-incs $(PREP) $(RBCONFIG) $(LIBRUBY)
 	$(ECHO) generating makefile $@
-	$(Q)$(MINIRUBY) $(srcdir)/tool/generic_erb.rb -o $@ -c \
-	    $(srcdir)/template/exts.mk.tmpl --gnumake=$(gnumake)
-
-ext/configure-ext.mk: $(PREP) all-incs $(MKFILES) $(RBCONFIG) $(LIBRUBY) \
-		$(srcdir)/template/configure-ext.mk.tmpl
-	$(ECHO) generating makefiles $@
-	$(Q)$(MAKEDIRS) $(@D)
-	$(Q)$(MINIRUBY) $(srcdir)/tool/generic_erb.rb -o $@ -c \
-	    $(srcdir)/template/$(@F).tmpl --srcdir="$(srcdir)" \
-	    --miniruby="$(MINIRUBY)" --script-args='$(SCRIPT_ARGS)'
+	$(Q)$(MINIRUBY) $(srcdir)/ext/extmk.rb --make="$(MAKE)" --command-output=$(EXTS_MK) $(EXTMK_ARGS) configure
 
 configure-ext: $(EXTS_MK)
 
 build-ext: $(EXTS_MK)
-	$(Q)$(MAKE) -f $(EXTS_MK) $(mflags) libdir="$(libdir)" LIBRUBY_EXTS=$(LIBRUBY_EXTS) \
-	    EXTENCS="$(ENCOBJS)" UPDATE_LIBRARIES=no $(EXTSTATIC)
-	$(Q)$(MAKE) $(EXTS_NOTE)
-
-exts-note: $(EXTS_MK)
-	$(Q)$(MAKE) $(EXTS_NOTE)
+	$(Q)$(MAKE) -f $(EXTS_MK) $(MFLAGS) $(EXTSTATIC) LIBRUBY_EXTS=$(LIBRUBY_EXTS) ENCOBJS="$(ENCOBJS)"
 
-ext/extinit.c: $(srcdir)/template/extinit.c.tmpl
-	$(Q)$(MINIRUBY) $(srcdir)/tool/generic_erb.rb -o $@ -c \
-	    $(srcdir)/template/extinit.c.tmpl $(EXTINITS)
+$(MKMAIN_CMD): $(MKFILES) all-incs $(PREP) $(RBCONFIG) $(LIBRUBY)
+	$(Q)$(MINIRUBY) $(srcdir)/ext/extmk.rb --make="$(MAKE)" --command-output=$@ $(EXTMK_ARGS)
 
 prog: program wprogram
-programs: $(PROGRAM) $(WPROGRAM)
 
 $(PREP): $(MKFILES)
 
-miniruby$(EXEEXT): config.status $(ALLOBJS) $(ARCHFILE)
+miniruby$(EXEEXT): config.status $(ALLOBJS) $(ARCHFILE) $(DTRACE_OBJ)
 
 objs: $(ALLOBJS)
 
 GORUBY = go$(RUBY_INSTALL_NAME)
 golf: $(LIBRUBY) $(GOLFOBJS) PHONY
-	$(Q) $(MAKE) $(mflags) \
-		MAINOBJ=goruby.$(OBJEXT) \
-		EXTOBJS="golf_prelude.$(OBJEXT) $(EXTOBJS)" \
-		PROGRAM=$(GORUBY)$(EXEEXT) \
-	program
+	$(Q) $(MAKE) $(MFLAGS) MAINOBJ="$(GOLFOBJS)" PROGRAM=$(GORUBY)$(EXEEXT) program
 capi: $(CAPIOUT)/.timestamp PHONY
 
 $(CAPIOUT)/.timestamp: Doxyfile $(PREP)
 	$(Q) $(MAKEDIRS) "$(@D)"
 	$(ECHO) generating capi
-	-$(Q) $(DOXYGEN) -b
-	$(Q) $(MINIRUBY) -e 'File.open(ARGV[0], "w"){'"|f|"' f.puts(Time.now)}' "$@"
+	$(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)
 	$(ECHO) generating $@
 	$(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):	$(LIBRUBY_A_OBJS) $(MAINOBJ) $(INITOBJS) $(ARCHFILE)
+$(LIBRUBY_A):	$(OBJS) $(MAINOBJ) $(DTRACE_OBJ) $(DTRACE_GLOMMED_OBJ) $(DMYEXT) $(ARCHFILE)
 
 $(LIBRUBY_SO):	$(OBJS) $(DLDOBJS) $(LIBRUBY_A) $(PREP) $(LIBRUBY_SO_UPDATE) $(BUILTIN_ENCOBJS)
 
@@ -294,9 +223,9 @@ $(STATIC_RUBY)$(EXEEXT): $(MAINOBJ) $(DLDOBJS) $(EXTOBJS) $(LIBRUBY_A)
 	$(Q)$(RM) $@
 	$(PURIFY) $(CC) $(MAINOBJ) $(DLDOBJS) $(EXTOBJS) $(LIBRUBY_A) $(MAINLIBS) $(EXTLIBS) $(LIBS) $(OUTFLAG)$@ $(LDFLAGS) $(XLDFLAGS)
 
-ruby.imp: $(COMMONOBJS)
-	$(Q)$(NM) -Pgp $(COMMONOBJS) | \
-	awk 'BEGIN{print "#!"}; $$2~/^[BDT]$$/&&$$1!~/^(Init_|ruby_static_id_|.*_threadptr_|rb_ec_\.)/{print $$1}' | \
+ruby.imp: $(EXPORTOBJS)
+	$(Q)$(NM) -Pgp $(EXPORTOBJS) | \
+	awk 'BEGIN{print "#!"}; $$2~/^[BDT]$$/&&$$1!~/^(Init_|.*_threadptr_|\.)/{print $$1}' | \
 	sort -u -o $@
 
 install: install-$(INSTALLDOC)
@@ -305,80 +234,80 @@ 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:: all pre-install-local pre-install-ext pre-install-doc
-do-install-all: pre-install-all
+pre-install-all:: pre-install-local pre-install-ext pre-install-doc
+do-install-all: 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 pre-install-nodoc
+do-install-nodoc: main
 	$(INSTRUBY) --make="$(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) pre-install-local
+do-install-local: $(PROGRAM)
 	$(INSTRUBY) --make="$(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 pre-install-ext
+do-install-ext: exts
 	$(INSTRUBY) --make="$(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 do-install-arch
+do-install-arch: main
 	$(INSTRUBY) --make="$(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) pre-install-comm
+do-install-comm: $(PREP)
 	$(INSTRUBY) --make="$(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) pre-install-bin
+do-install-bin: $(PROGRAM)
 	$(INSTRUBY) --make="$(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) pre-install-lib
+do-install-lib: $(PREP)
 	$(INSTRUBY) --make="$(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 pre-install-ext-comm
+do-install-ext-comm: exts
 	$(INSTRUBY) --make="$(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 pre-install-ext-arch
+do-install-ext-arch: exts
 	$(INSTRUBY) --make="$(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) pre-install-man
+do-install-man: $(PREP)
 	$(INSTRUBY) --make="$(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) pre-install-capi
+do-install-capi: $(PREP)
 	$(INSTRUBY) --make="$(MAKE)" $(INSTRUBY_ARGS) --install=capi
 post-install-capi::
 	@$(NULLCMD)
@@ -393,10 +322,10 @@ 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
+uninstall: $(INSTALLED_LIST)
 	$(Q)$(SUDO) $(MINIRUBY) $(srcdir)/tool/rbuninstall.rb --destdir=$(DESTDIR) $(INSTALLED_LIST)
 
-reinstall: all uninstall install
+reinstall: uninstall install
 
 what-where-nodoc: no-install-nodoc
 no-install-nodoc: pre-no-install-nodoc dont-install-nodoc post-no-install-nodoc
@@ -475,25 +404,21 @@ 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) pre-install-doc
+do-install-doc: $(PROGRAM)
 	$(INSTRUBY) --make="$(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) pre-install-gem
+do-install-gem: $(PROGRAM)
 	$(INSTRUBY) --make="$(MAKE)" $(INSTRUBY_ARGS) --install=gem
 post-install-gem::
 	@$(NULLCMD)
 
 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)" $(RDOCFLAGS) "$(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)" $(RDOCFLAGS) "$(srcdir)"
+	$(Q) $(XRUBY) "$(srcdir)/bin/rdoc" --root "$(srcdir)" --page-dir "$(srcdir)/doc" --encoding=UTF-8 --no-force-update --all --ri --op "$(RDOCOUT)" --debug $(RDOCFLAGS) "$(srcdir)"
 
 rdoc-coverage: PHONY main
 	@echo Generating RDoc coverage report
@@ -521,216 +446,108 @@ post-no-install-doc::
 
 CLEAR_INSTALLED_LIST = clear-installed-list
 
-install-prereq: $(CLEAR_INSTALLED_LIST) yes-fake sudo-precheck PHONY
+install-prereq: $(CLEAR_INSTALLED_LIST) yes-fake PHONY
 
 clear-installed-list: PHONY
 	@> $(INSTALLED_LIST) set MAKE="$(MAKE)"
 
-clean: clean-ext clean-enc clean-golf clean-docs clean-extout clean-local clean-platform clean-spec
-clean-local:: clean-runnable
+clean: clean-ext clean-local clean-enc clean-golf clean-rdoc clean-capi clean-extout clean-platform
+clean-local:: PHONY
 	$(Q)$(RM) $(OBJS) $(MINIOBJS) $(MAINOBJ) $(LIBRUBY_A) $(LIBRUBY_SO) $(LIBRUBY) $(LIBRUBY_ALIASES)
-	$(Q)$(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
+	$(Q)$(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)
 clean-ext:: PHONY
 clean-golf: PHONY
 	$(Q)$(RM) $(GORUBY)$(EXEEXT) $(GOLFOBJS)
 clean-rdoc: PHONY
-clean-html: PHONY
 clean-capi: PHONY
 clean-platform: PHONY
 clean-extout: PHONY
-	-$(Q)$(RMDIR) $(EXTOUT)/$(arch) $(EXTOUT) 2> $(NULL) || exit 0
-clean-docs: clean-rdoc clean-html clean-capi
-clean-spec: PHONY
-clean-rubyspec: clean-spec
+clean-docs: clean-rdoc clean-capi
 
-distclean: distclean-ext distclean-enc distclean-golf distclean-docs distclean-extout distclean-local distclean-platform distclean-spec
+distclean: distclean-ext distclean-local distclean-enc distclean-golf distclean-extout distclean-platform
 distclean-local:: clean-local
-	$(Q)$(RM) $(MKFILES) yasmdata.rb *.inc $(PRELUDES)
+	$(Q)$(RM) $(MKFILES) yasmdata.rb *.inc
 	$(Q)$(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
-distclean-rdoc: clean-rdoc
-distclean-html: clean-html
-distclean-capi: clean-capi
-distclean-docs: clean-docs
+	$(Q)$(RM) $(GOLFPRELUDES)
+distclean-rdoc: PHONY
+distclean-capi: PHONY
 distclean-extout: clean-extout
 distclean-platform: clean-platform
-distclean-spec: clean-spec
-distclean-rubyspec: distclean-spec
 
 realclean:: realclean-ext realclean-local realclean-enc realclean-golf realclean-extout
 realclean-local:: distclean-local
-	$(Q)$(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 aclocal.m4 tool/config.guess tool/config.sub gems/*.gem
+	$(Q)$(RM) parse.c parse.h lex.c newline.c miniprelude.c revision.h
 realclean-ext:: PHONY
 realclean-golf: distclean-golf
-	$(Q)$(RM) $(GOLFPRELUDES)
-realclean-rdoc: distclean-rdoc
-realclean-html: distclean-html
-realclean-capi: distclean-capi
-realclean-docs: distclean-docs
+realclean-capi: PHONY
 realclean-extout: distclean-extout
-realclean-platform: distclean-platform
-realclean-spec: distclean-spec
-realclean-rubyspec: realclean-spec
-
-clean-ext:: ext/clean gems/clean timestamp/clean
-distclean-ext:: ext/distclean gems/distclean timestamp/distclean
-realclean-ext:: ext/realclean gems/realclean timestamp/realclean
-
-ext/clean.mk ext/distclean.mk ext/realclean.mk::
-ext/clean gems/clean:: ext/clean.mk
-ext/distclean gems/distclean:: ext/distclean.mk
-ext/realclean gems/realclean:: ext/realclean.mk
-
-timestamp/clean:: ext/clean gems/clean
-timestamp/distclean:: ext/distclean gems/distclean
-timestamp/realclean:: ext/realclean gems/realclean
 
-timestamp/clean timestamp/distclean timestamp/realclean::
-	$(Q)$(RM) $(TIMESTAMPDIR)/.*.time $(TIMESTAMPDIR)/$(arch)/.time
-	$(Q)$(RMDIRS) $(TIMESTAMPDIR)/$(arch) 2> $(NULL) || exit 0
-
-clean-ext::
-	-$(Q)$(RM) ext/extinit.$(OBJEXT)
-
-distclean-ext realclean-ext::
-	-$(Q)$(RM) $(EXTS_MK) ext/extinit.* ext/configure-ext.mk
-	-$(Q)$(RMDIR) ext 2> $(NULL) || exit 0
+clean-ext distclean-ext realclean-ext::
+	$(Q)$(RM) $(EXTS_MK)
+	$(Q)$(RM) $(EXTOUT)/.timestamp/.*.time
 
 clean-enc distclean-enc realclean-enc: PHONY
 
-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> $(NULL) || exit 0
-
-RUBYSPEC_CAPIEXT = spec/ruby/optional/capi/ext
-clean-spec: PHONY
-	-$(Q) $(RM) $(RUBYSPEC_CAPIEXT)/*.$(OBJEXT) $(RUBYSPEC_CAPIEXT)/*.$(DLEXT)
-	-$(Q) $(RMDIRS) $(RUBYSPEC_CAPIEXT) 2> $(NULL) || exit 0
-
-check: main test test-testframework test-almost
+check: main test test-all
 	$(ECHO) check succeeded
 check-ruby: test test-ruby
 
 fake: $(CROSS_COMPILING)-fake
 yes-fake: $(arch)-fake.rb $(RBCONFIG) PHONY
-no-fake -fake: PHONY
-
-# really doesn't depend on .o, just ensure newer than headers which
-# version.o depends on.
-$(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)"
+no-fake: PHONY
 
 btest: $(TEST_RUNNABLE)-btest
 no-btest: PHONY
 yes-btest: fake miniruby$(EXEEXT) PHONY
-	$(Q)$(exec) $(BOOTSTRAPRUBY) "$(srcdir)/bootstraptest/runner.rb" --ruby="$(BTESTRUBY) $(RUN_OPTS)" $(OPTS) $(TESTOPTS)
+	$(BOOTSTRAPRUBY) "$(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
-	$(Q)$(exec) $(RUNRUBY) "$(srcdir)/bootstraptest/runner.rb" --ruby="$(PROGRAM) -I$(srcdir)/lib $(RUN_OPTS)" -q $(OPTS) $(TESTOPTS)
+	$(Q)$(RUNRUBY) "$(srcdir)/bootstraptest/runner.rb" --ruby="$(PROGRAM) -I$(srcdir)/lib $(RUN_OPTS)" -q $(OPTS) $(TESTOPTS)
 
-test-basic: $(TEST_RUNNABLE)-test-basic
-no-test-basic: PHONY
-yes-test-basic: prog PHONY
-	$(Q)$(exec) $(RUNRUBY) "$(srcdir)/basictest/runner.rb" --run-opt=$(RUN_OPTS) $(OPTS) $(TESTOPTS)
+test-sample: $(TEST_RUNNABLE)-test-sample
+no-test-sample: PHONY
+yes-test-sample: prog PHONY
+	$(Q)$(RUNRUBY) $(srcdir)/tool/rubytest.rb --run-opt=$(RUN_OPTS) $(OPTS) $(TESTOPTS)
 
 test-knownbugs: test-knownbug
 test-knownbug: $(TEST_RUNNABLE)-test-knownbug
 no-test-knownbug: PHONY
 yes-test-knownbug: prog PHONY
-	-$(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
-	$(gnumake_recursive)$(Q)$(exec) $(RUNRUBY) "$(srcdir)/test/runner.rb" --ruby="$(RUNRUBY)" $(TESTOPTS) testunit minitest
-no-test-testframework: PHONY
+	-$(RUNRUBY) "$(srcdir)/bootstraptest/runner.rb" --ruby="$(PROGRAM) $(RUN_OPTS)" $(OPTS) $(TESTOPTS) $(srcdir)/KNOWNBUGS.rb
 
-test-sample: test-basic # backward compatibility for mswin-build
-test: btest-ruby test-knownbug test-basic
+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: programs PHONY
-	$(gnumake_recursive)$(Q)$(exec) $(RUNRUBY) "$(srcdir)/test/runner.rb" --ruby="$(RUNRUBY)" $(TEST_EXCLUDES) $(TESTOPTS) $(TESTS)
+yes-test-all: prog PHONY
+	$(RUNRUBY) "$(srcdir)/test/runner.rb" --ruby="$(RUNRUBY)" $(TESTOPTS) $(TESTS)
 TESTS_BUILD = mkmf
 no-test-all: PHONY
-	$(gnumake_recursive)$(MINIRUBY) -I"$(srcdir)/lib" "$(srcdir)/test/runner.rb" $(TESTOPTS) $(TESTS_BUILD)
-
-test-almost: $(TEST_RUNNABLE)-test-almost
-yes-test-almost: prog PHONY
-	$(gnumake_recursive)$(Q)$(exec) $(RUNRUBY) "$(srcdir)/test/runner.rb" --ruby="$(RUNRUBY)" $(TEST_EXCLUDES) $(TESTOPTS) $(EXCLUDE_TESTFRAMEWORK) $(TESTS)
-no-test-almost: PHONY
+	$(MINIRUBY) -I"$(srcdir)/lib" "$(srcdir)/test/runner.rb" $(TESTOPTS) $(TESTS_BUILD)
 
 test-ruby: $(TEST_RUNNABLE)-test-ruby
 no-test-ruby: PHONY
 yes-test-ruby: prog encs PHONY
-	$(gnumake_recursive)$(RUNRUBY) "$(srcdir)/test/runner.rb" $(TEST_EXCLUDES) $(TESTOPTS) -- ruby -ext-
+	$(RUNRUBY) "$(srcdir)/test/runner.rb" -q $(TESTOPTS) -- ruby -ext-
 
 extconf: $(PREP)
 	$(Q) $(MAKEDIRS) "$(EXTCONFDIR)"
 	$(RUNRUBY) -C "$(EXTCONFDIR)" $(EXTCONF) $(EXTCONFARGS)
 
-$(RBCONFIG): $(srcdir)/tool/mkconfig.rb config.status $(srcdir)/version.h
-	$(Q)$(BOOTSTRAPRUBY) -n \
-	-e 'BEGIN{version=ARGV.shift;mis=ARGV.dup}' \
-	-e 'END{abort "UNICODE version mismatch: #{mis}" unless mis.empty?}' \
-	-e '(mis.delete(ARGF.path); ARGF.close) if /ONIG_UNICODE_VERSION_STRING +"#{Regexp.quote(version)}"/o' \
-	$(UNICODE_VERSION) $(UNICODE_DATA_HEADERS)
-	$(Q)$(BOOTSTRAPRUBY) $(srcdir)/tool/mkconfig.rb \
-		-arch=$(arch) -version=$(RUBY_PROGRAM_VERSION) \
+$(RBCONFIG): $(srcdir)/tool/mkconfig.rb config.status $(srcdir)/version.h $(PREP)
+	$(Q)$(MINIRUBY) $(srcdir)/tool/mkconfig.rb -timestamp=$@ \
 		-install_name=$(RUBY_INSTALL_NAME) \
-		-so_name=$(RUBY_SO_NAME) \
-		-unicode_version=$(UNICODE_VERSION) \
-	> rbconfig.tmp
-	$(IFCHANGE) "--timestamp=$@" rbconfig.rb rbconfig.tmp
+		-so_name=$(RUBY_SO_NAME) rbconfig.rb
 
-test-rubyspec: test-spec
-yes-test-rubyspec: yes-test-spec
+test-rubyspec-precheck:
 
-test-spec-precheck: $(arch)-fake.rb programs
-
-test-spec: $(TEST_RUNNABLE)-test-spec
-yes-test-spec: test-spec-precheck
-	$(gnumake_recursive)$(Q) \
-	$(RUNRUBY) -r./$(arch)-fake $(srcdir)/spec/mspec/bin/mspec run -B $(srcdir)/spec/default.mspec $(MSPECOPT) $(SPECOPTS)
-no-test-spec:
+test-rubyspec: test-rubyspec-precheck
+	$(RUNRUBY) $(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
@@ -739,32 +556,32 @@ yes-runnable: PHONY
 
 encs: enc trans
 libencs: libenc libtrans
-encs enc trans libencs libenc libtrans: $(SHOWFLAGS) $(ENC_MK) $(LIBRUBY) $(PREP) PHONY
+encs enc trans libencs libenc libtrans: showflags $(ENC_MK) $(LIBRUBY) $(PREP)
 	$(ECHO) making $@
-	$(Q) $(MAKE) $(MAKE_ENC) $@
+	$(Q) $(MAKE) -f $(ENC_MK) V="$(V)" \
+		RUBY="$(MINIRUBY)" MINIRUBY="$(MINIRUBY)" \
+		$(MFLAGS) $@
 
 
 libenc enc: {$(VPATH)}encdb.h
 libtrans trans: {$(VPATH)}transdb.h
 
-# Use MINIRUBY which loads fake.rb for cross compiling
 $(ENC_MK): $(srcdir)/enc/make_encmake.rb $(srcdir)/enc/Makefile.in $(srcdir)/enc/depend \
-	$(srcdir)/enc/encinit.c.erb $(srcdir)/lib/mkmf.rb $(RBCONFIG) fake
+	$(srcdir)/enc/encinit.c.erb $(srcdir)/lib/mkmf.rb $(RBCONFIG)
 	$(ECHO) generating $@
-	$(Q) $(MINIRUBY) $(srcdir)/enc/make_encmake.rb --builtin-encs="$(BUILTIN_ENCOBJS)" --builtin-transes="$(BUILTIN_TRANSOBJS)" --module$(ENCSTATIC) $(ENCS) $@
+	$(Q) $(MINIRUBY) $(srcdir)/enc/make_encmake.rb --builtin-encs="$(BUILTIN_ENCOBJS)" --builtin-transes="$(BUILTIN_TRANSOBJS)" --module$(EXTSTATIC) $@ $(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-html clean-extout
+.PHONY: clean clean-ext clean-local clean-enc clean-golf clean-rdoc 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-basic test-knownbug
+.PHONY: check test test-all btest btest-ruby test-sample test-knownbug
 .PHONY: run runruby parse benchmark benchmark-each tbench gdb gdb-ruby
-.PHONY: update-mspec update-rubyspec test-rubyspec test-spec
-.PHONY: touch-unicode-files
+.PHONY: update-mspec update-rubyspec test-rubyspec
 
 PHONY:
 
@@ -776,97 +593,272 @@ PHONY:
 	$(Q)$(BASERUBY) $(srcdir)/tool/id2token.rb --path-separator=.$(PATH_SEPARATOR)./ --vpath=$(VPATH) id.h $(SRC_FILE) > parse.tmp.y
 	$(Q)$(YACC) -d $(YFLAGS) -o y.tab.c parse.tmp.y
 	$(Q)$(RM) parse.tmp.y
-	$(Q)sed -f $(srcdir)/tool/ytab.sed -e "/^#/s|parse\.tmp\.[iy]|$(SRC_FILE)|" -e "/^#/s!y\.tab\.c!$@!" y.tab.c > $@.new
+	$(Q)sed -f $(srcdir)/tool/ytab.sed -e "/^#/s!parse\.tmp\.[iy]!parse.y!" -e "/^#/s!y\.tab\.c!$@!" y.tab.c > $@.new
 	$(Q)$(MV) $@.new $@
 	$(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) $(@D)
-	@exit > $@
-
-exe/$(PROGRAM): ruby-runner.c ruby-runner.h exe/.time miniruby$(EXEEXT)
-	$(Q) $(PURIFY) $(CC) $(CFLAGS) $(CPPFLAGS) -DRUBY_INSTALL_NAME=$(@F) $(LDFLAGS) $(LIBS) $(OUTFLAG)$@ $<
-	$(Q) ./miniruby$(EXEEXT) \
-	    -e 'prog, dest = ARGV; dest += "/ruby"' \
-	    -e 'unless prog=="ruby"' \
-	    -e '  begin File.unlink(dest); rescue Errno::ENOENT; end' \
-	    -e '  File.symlink(prog, dest)' \
-	    -e 'end' \
-	$(@F) $(@D)
-
-exe/.time:
-	$(Q) $(MAKEDIRS) exe $(@D)
-	@exit > $@
-
-$(BUILTIN_ENCOBJS) $(BUILTIN_TRANSOBJS): $(ENC_TRANS_D)
-
-$(ENC_TRANS_D):
-	$(Q) $(MAKEDIRS) enc/trans $(@D)
-	@exit > $@
-
-$(TIMESTAMPDIR)/$(arch)/.time:
-	$(Q)$(MAKEDIRS) $(@D) $(EXTOUT)/$(arch)
+	$(Q) $(MAKEDIRS) $(PLATFORM_DIR)
 	@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 \
 		     {$(VPATH)}subst.h
+ENCODING_H_INCLUDES= {$(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 {$(VPATH)}thread_native.h
 
 ###
 
 acosh.$(OBJEXT): {$(VPATH)}acosh.c
 alloca.$(OBJEXT): {$(VPATH)}alloca.c {$(VPATH)}config.h
-crypt.$(OBJEXT): {$(VPATH)}crypt.c {$(VPATH)}crypt.h {$(VPATH)}missing/des_tables.c
+crypt.$(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): {$(VPATH)}setproctitle.c
+setproctitle.$(OBJEXT): {$(VPATH)}setproctitle.c {$(VPATH)}util.h $(RUBY_H_INCLUDES) $(hdrdir)/ruby.h
 strchr.$(OBJEXT): {$(VPATH)}strchr.c
 strdup.$(OBJEXT): {$(VPATH)}strdup.c
 strerror.$(OBJEXT): {$(VPATH)}strerror.c
 strlcat.$(OBJEXT): {$(VPATH)}strlcat.c
 strlcpy.$(OBJEXT): {$(VPATH)}strlcpy.c
 strstr.$(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 $<
 
 ###
 
-# 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 $(RUBY_H_INCLUDES) \
-  {$(VPATH)}vm.h $(PLATFORM_D)
-win32/file.$(OBJEXT): {$(VPATH)}win32/file.c {$(VPATH)}win32/file.h \
-  $(RUBY_H_INCLUDES) $(PLATFORM_D)
+addr2line.$(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 {$(VPATH)}vm_opts.h
+bignum.$(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 {$(VPATH)}constant.h {$(VPATH)}vm_opts.h
+compar.$(OBJEXT): {$(VPATH)}compar.c $(RUBY_H_INCLUDES)
+complex.$(OBJEXT): {$(VPATH)}complex.c $(RUBY_H_INCLUDES) \
+  {$(VPATH)}internal.h $(hdrdir)/ruby.h
+dir.$(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): {$(VPATH)}dmyext.c
+encoding.$(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 {$(VPATH)}internal.h
+enumerator.$(OBJEXT): {$(VPATH)}enumerator.c $(RUBY_H_INCLUDES) \
+  {$(VPATH)}internal.h {$(VPATH)}node.h
+error.$(OBJEXT): {$(VPATH)}error.c {$(VPATH)}known_errors.inc \
+  $(RUBY_H_INCLUDES) $(VM_CORE_H_INCLUDES) $(ENCODING_H_INCLUDES) \
+  {$(VPATH)}internal.h {$(VPATH)}vm_opts.h
+eval.$(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 $(PROBES_H_INCLUDES) {$(VPATH)}vm_opts.h {$(VPATH)}probes_helper.h
+load.$(OBJEXT): {$(VPATH)}load.c {$(VPATH)}eval_intern.h \
+  {$(VPATH)}util.h $(RUBY_H_INCLUDES) $(VM_CORE_H_INCLUDES) \
+  {$(VPATH)}dln.h {$(VPATH)}internal.h $(PROBES_H_INCLUDES) {$(VPATH)}vm_opts.h
+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 $(PROBES_H_INCLUDES) {$(VPATH)}vm_opts.h {$(VPATH)}debug.h
+hash.$(OBJEXT): {$(VPATH)}hash.c $(RUBY_H_INCLUDES) {$(VPATH)}util.h \
+  $(ENCODING_H_INCLUDES) {$(VPATH)}internal.h $(PROBES_H_INCLUDES) {$(VPATH)}vm_opts.h
+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 {$(VPATH)}id.h {$(VPATH)}ruby_atomic.h
+main.$(OBJEXT): {$(VPATH)}main.c $(RUBY_H_INCLUDES) {$(VPATH)}node.h {$(VPATH)}vm_debug.h {$(VPATH)}vm_opts.h $(hdrdir)/ruby.h
+marshal.$(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) \
+  $(VM_CORE_H_INCLUDES) {$(VPATH)}vm_opts.h {$(VPATH)}internal.h
+numeric.$(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) $(PROBES_H_INCLUDES) \
+  {$(VPATH)}vm_opts.h {$(VPATH)}id.h
+pack.$(OBJEXT): {$(VPATH)}pack.c $(RUBY_H_INCLUDES) {$(VPATH)}encoding.h \
+  {$(VPATH)}oniguruma.h {$(VPATH)}internal.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 $(PROBES_H_INCLUDES) {$(VPATH)}vm_opts.h
+proc.$(OBJEXT): {$(VPATH)}proc.c {$(VPATH)}eval_intern.h \
+  $(RUBY_H_INCLUDES) {$(VPATH)}gc.h $(VM_CORE_H_INCLUDES) \
+  {$(VPATH)}internal.h {$(VPATH)}iseq.h {$(VPATH)}vm_opts.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 \
+  {$(VPATH)}thread.h {$(VPATH)}vm_opts.h
+random.$(OBJEXT): {$(VPATH)}random.c $(RUBY_H_INCLUDES) \
+  {$(VPATH)}siphash.c {$(VPATH)}siphash.h {$(VPATH)}internal.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 $(hdrdir)/ruby.h
+re.$(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 {$(VPATH)}internal.h {$(VPATH)}vm_opts.h
+safe.$(OBJEXT): {$(VPATH)}safe.c $(RUBY_H_INCLUDES) $(VM_CORE_H_INCLUDES) {$(VPATH)}vm_opts.h {$(VPATH)}internal.h
+signal.$(OBJEXT): {$(VPATH)}signal.c $(RUBY_H_INCLUDES) \
+  $(VM_CORE_H_INCLUDES) {$(VPATH)}vm_opts.h {$(VPATH)}internal.h {$(VPATH)}ruby_atomic.h {$(VPATH)}eval_intern.h
+sprintf.$(OBJEXT): {$(VPATH)}sprintf.c $(RUBY_H_INCLUDES) {$(VPATH)}re.h \
+  {$(VPATH)}regex.h {$(VPATH)}vsnprintf.c $(ENCODING_H_INCLUDES) {$(VPATH)}internal.h
+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 $(PROBES_H_INCLUDES) {$(VPATH)}vm_opts.h {$(VPATH)}node.h {$(VPATH)}ruby_atomic.h {$(VPATH)}vm_core.h {$(VPATH)}vm_debug.h {$(VPATH)}id.h {$(VPATH)}method.h {$(VPATH)}thread_$(THREAD_MODEL).h {$(VPATH)}thread_native.h
+struct.$(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 {$(VPATH)}timev.h {$(VPATH)}vm_opts.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 {$(VPATH)}vm_opts.h
+time.$(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 {$(VPATH)}id.h \
+  {$(VPATH)}oniguruma.h {$(VPATH)}internal.h {$(VPATH)}constant.h
+version.$(OBJEXT): {$(VPATH)}version.c $(RUBY_H_INCLUDES) \
+  $(srcdir)/include/ruby/version.h $(srcdir)/version.h $(srcdir)/revision.h {$(VPATH)}config.h
+loadpath.$(OBJEXT): {$(VPATH)}loadpath.c $(RUBY_H_INCLUDES) \
+  $(srcdir)/include/ruby/version.h $(srcdir)/version.h {$(VPATH)}config.h \
+  verconf.h
+localeinit.$(OBJEXT): {$(VPATH)}localeinit.c $(RUBY_H_INCLUDES) \
+  $(ENCODING_H_INCLUDES) {$(VPATH)}internal.h
+miniinit.$(OBJEXT): {$(VPATH)}miniinit.c $(RUBY_H_INCLUDES) \
+  $(ENCODING_H_INCLUDES)
+
+compile.$(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 {$(VPATH)}vm_opts.h
+iseq.$(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 {$(VPATH)}internal.h {$(VPATH)}vm_opts.h {$(VPATH)}ruby_atomic.h {$(VPATH)}eval_intern.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 {$(VPATH)}vm_opts.h
+vm_dump.$(OBJEXT): {$(VPATH)}vm_dump.c $(RUBY_H_INCLUDES) \
+  $(VM_CORE_H_INCLUDES) {$(VPATH)}addr2line.h \
+  {$(VPATH)}internal.h {$(VPATH)}vm_opts.h
+debug.$(OBJEXT): {$(VPATH)}debug.c $(RUBY_H_INCLUDES) \
+  $(ENCODING_H_INCLUDES) $(VM_CORE_H_INCLUDES) {$(VPATH)}eval_intern.h \
+  {$(VPATH)}util.h {$(VPATH)}vm_opts.h {$(VPATH)}internal.h
+id.$(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 {$(VPATH)}vm_opts.h {$(VPATH)}ruby_atomic.h {$(VPATH)}eval_intern.h
+vm_trace.$(OBJEXT): {$(VPATH)}vm_trace.c $(ENCODING_H_INCLUDES) \
+  $(VM_CORE_H_INCLUDES) $(RUBY_H_INCLUDES) {$(VPATH)}debug.h \
+  {$(VPATH)}internal.h {$(VPATH)}vm_opts.h {$(VPATH)}ruby_atomic.h {$(VPATH)}eval_intern.h
+miniprelude.$(OBJEXT): {$(VPATH)}miniprelude.c $(RUBY_H_INCLUDES) \
+  $(VM_CORE_H_INCLUDES) {$(VPATH)}internal.h {$(VPATH)}vm_opts.h
+prelude.$(OBJEXT): {$(VPATH)}prelude.c $(RUBY_H_INCLUDES) \
+  $(VM_CORE_H_INCLUDES) {$(VPATH)}internal.h {$(VPATH)}vm_opts.h
+golf_prelude.$(OBJEXT): {$(VPATH)}golf_prelude.c $(RUBY_H_INCLUDES) \
+  $(VM_CORE_H_INCLUDES) {$(VPATH)}internal.h {$(VPATH)}vm_opts.h
+goruby.$(OBJEXT): {$(VPATH)}goruby.c {$(VPATH)}main.c $(RUBY_H_INCLUDES) \
+  {$(VPATH)}vm_debug.h {$(VPATH)}node.h $(hdrdir)/ruby.h
+
+sizes.$(OBJEXT): {$(VPATH)}sizes.c $(RUBY_H_INCLUDES)
+
+ascii.$(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): {$(VPATH)}win32/win32.c {$(VPATH)}dln.h {$(VPATH)}dln_find.c \
+  {$(VPATH)}internal.h $(RUBY_H_INCLUDES) $(PLATFORM_D)
+win32/file.$(OBJEXT): {$(VPATH)}win32/file.c $(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 $@ $(srcdir)/enc/trans/newline.trans
-enc/trans/newline.$(OBJEXT): $(NEWLINE_C)
+newline.$(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
 
-verconf.h: $(srcdir)/template/verconf.h.tmpl $(srcdir)/tool/generic_erb.rb
+verconf.h: $(srcdir)/template/verconf.h.in $(srcdir)/tool/generic_erb.rb $(RBCONFIG)
 	$(ECHO) creating $@
-	$(Q) $(BOOTSTRAPRUBY) "$(srcdir)/tool/generic_erb.rb" -o $@ $(srcdir)/template/verconf.h.tmpl
+	$(Q) $(MINIRUBY) "$(srcdir)/tool/generic_erb.rb" $(srcdir)/template/verconf.h.in > $@
+
+DTRACE_DEPENDENT_OBJS = array.$(OBJEXT) \
+		eval.$(OBJEXT) \
+		gc.$(OBJEXT) \
+		hash.$(OBJEXT) \
+		load.$(OBJEXT) \
+		object.$(OBJEXT) \
+		parse.$(OBJEXT) \
+		string.$(OBJEXT) \
+		vm.$(OBJEXT)
 
-ruby-glommed.$(OBJEXT): $(OBJS)
+probes.$(OBJEXT): $(DTRACE_DEPENDENT_OBJS)
+ruby-glommed.$(OBJEXT): $(OBJS) $(DTRACE_OBJ)
 
 $(OBJS):  {$(VPATH)}config.h {$(VPATH)}missing.h
 
@@ -888,39 +880,20 @@ INSNS2VMOPT = --srcdir="$(srcdir)"
 
 {$(VPATH)}vm.inc: $(srcdir)/template/vm.inc.tmpl
 
-common-srcs: {$(VPATH)}parse.c {$(VPATH)}lex.c {$(VPATH)}enc/trans/newline.c {$(VPATH)}id.c \
-	     srcs-lib srcs-ext incs
+srcs: {$(VPATH)}parse.c {$(VPATH)}lex.c {$(VPATH)}newline.c {$(VPATH)}id.c srcs-ext srcs-enc
 
-missing-srcs: $(srcdir)/missing/des_tables.c
-
-srcs: common-srcs missing-srcs srcs-enc
-
-EXT_SRCS = $(srcdir)/ext/ripper/ripper.c \
-	   $(srcdir)/ext/rbconfig/sizeof/sizes.c \
-	   $(srcdir)/ext/rbconfig/sizeof/limits.c \
-	   $(srcdir)/ext/socket/constdefs.c \
-	   # EXT_SRCS
+EXT_SRCS = $(srcdir)/ext/ripper/ripper.c $(srcdir)/ext/json/parser/parser.c \
+	   $(srcdir)/ext/dl/callback/callback.c  $(srcdir)/ext/rbconfig/sizeof/sizes.c
 
 srcs-ext: $(EXT_SRCS)
 
-srcs-extra: $(srcdir)/ext/json/parser/parser.c \
-	    $(srcdir)/ext/date/zonetab.h \
-	    $(empty)
-
-LIB_SRCS = $(srcdir)/lib/unicode_normalize/tables.rb
-
-srcs-lib: $(LIB_SRCS)
-
 srcs-enc: $(ENC_MK)
 	$(ECHO) making srcs under enc
-	$(Q) $(MAKE) $(MAKE_ENC) srcs
+	$(Q) $(MAKE) -f $(ENC_MK) RUBY="$(MINIRUBY)" MINIRUBY="$(MINIRUBY)" $(MFLAGS) srcs
 
-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) \
-      $(UNICODE_DATA_HEADERS) $(srcdir)/enc/jis/props.h \
-      {$(VPATH)}id.h {$(VPATH)}probes.dmyh
+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
 
 insns: $(INSNS)
 
@@ -952,91 +925,58 @@ 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
 
-vm_call_iseq_optimized.inc: $(srcdir)/tool/mk_call_iseq_optimized.rb
+$(MINIPRELUDE_C): $(srcdir)/tool/compile_prelude.rb $(srcdir)/prelude.rb
 	$(ECHO) generating $@
-	$(Q) $(BASERUBY) $(srcdir)/tool/mk_call_iseq_optimized.rb > $@
+	$(Q) $(BASERUBY) -I$(srcdir) $(srcdir)/tool/compile_prelude.rb $(srcdir)/prelude.rb $@
 
-$(MINIPRELUDE_C): $(COMPILE_PRELUDE)
+prelude.c: $(srcdir)/tool/compile_prelude.rb $(RBCONFIG) \
+	   $(srcdir)/lib/rubygems/defaults.rb \
+	   $(srcdir)/lib/rubygems/core_ext/kernel_gem.rb \
+	   $(PRELUDE_SCRIPTS) $(PREP)
 	$(ECHO) generating $@
-	$(Q) $(BASERUBY) $(srcdir)/tool/generic_erb.rb -I$(srcdir) -o $@ \
-		$(srcdir)/template/prelude.c.tmpl
+	$(Q) $(COMPILE_PRELUDE) $(PRELUDE_SCRIPTS) $@
 
-$(PRELUDE_C): $(COMPILE_PRELUDE) \
-	   $(PRELUDE_SCRIPTS)
+golf_prelude.c: $(srcdir)/tool/compile_prelude.rb $(RBCONFIG) $(srcdir)/prelude.rb $(srcdir)/golf_prelude.rb $(PREP)
 	$(ECHO) generating $@
-	$(Q) $(BASERUBY) $(srcdir)/tool/generic_erb.rb -I$(srcdir) -c -o $@ \
-		$(srcdir)/template/prelude.c.tmpl $(PRELUDE_SCRIPTS)
+	$(Q) $(COMPILE_PRELUDE) $(srcdir)/golf_prelude.rb $@
 
-{$(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
-
-MAINCPPFLAGS = $(ENABLE_DEBUG_ENV:yes=-DRUBY_DEBUG_ENV=1)
-
-$(MAINOBJ): $(srcdir)/$(MAINSRC)
-	$(ECHO) compiling $(srcdir)/$(MAINSRC)
-	$(Q) $(CC) $(MAINCPPFLAGS) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) $(COUTFLAG)$@ -c $(CSRCFLAG)$(srcdir)/$(MAINSRC)
-
-{$(VPATH)}probes.dmyh: {$(srcdir)}probes.d $(srcdir)/tool/gen_dummy_probes.rb
-
-probes.dmyh:
+probes.dmyh: {$(srcdir)}probes.d $(srcdir)/tool/gen_dummy_probes.rb
 	$(BASERUBY) $(srcdir)/tool/gen_dummy_probes.rb $(srcdir)/probes.d > $@
 
 probes.h: {$(VPATH)}probes.$(DTRACE_EXT)
 
 prereq: incs srcs preludes PHONY
 
-preludes: {$(VPATH)}prelude.c
 preludes: {$(VPATH)}miniprelude.c
 preludes: {$(srcdir)}golf_prelude.c
 
 $(srcdir)/revision.h:
 	@exit > $@
 
-$(REVISION_H): $(srcdir)/version.h $(srcdir)/tool/file2lastrev.rb $(REVISION_FORCE)
-	-$(Q) $(BASERUBY) $(srcdir)/tool/file2lastrev.rb -q --revision.h "$(srcdir)" > revision.tmp
+$(REVISION_H): $(srcdir)/version.h $(srcdir)/ChangeLog $(srcdir)/tool/file2lastrev.rb $(REVISION_FORCE)
+	-$(Q) $(BASERUBY) $(srcdir)/tool/file2lastrev.rb --revision.h "$(srcdir)" > revision.tmp
 	$(Q)$(IFCHANGE) "--timestamp=$@" "$(srcdir)/revision.h" revision.tmp
 
-$(srcdir)/ext/ripper/ripper.c: $(srcdir)/parse.y id.h
+$(srcdir)/ext/ripper/ripper.c: parse.y id.h
 	$(ECHO) generating $@
-	$(Q) VPATH=$${PWD-`pwd`} && $(CHDIR) $(@D) && \
-	sed /AUTOGENERATED/q depend | \
-	$(exec) $(MAKE) -f - $(mflags) \
-		Q=$(Q) ECHO=$(ECHO) RM="$(RM)" top_srcdir=../.. srcdir=. VPATH="$${VPATH}" \
-		RUBY="$(BASERUBY)" PATH_SEPARATOR="$(PATH_SEPARATOR)"
+	$(Q) $(CHDIR) $(@D) && $(exec) $(MAKE) -f depend $(MFLAGS) \
+		Q=$(Q) ECHO=$(ECHO) top_srcdir=../.. srcdir=. VPATH=../.. RUBY="$(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) $(CHDIR) $(@D) && $(exec) $(MAKE) -f prereq.mk $(MFLAGS) \
 		Q=$(Q) ECHO=$(ECHO) top_srcdir=../../.. srcdir=. VPATH=../../.. BASERUBY="$(BASERUBY)"
 
-$(srcdir)/ext/date/zonetab.h: $(srcdir)/ext/date/zonetab.list
+$(srcdir)/ext/dl/callback/callback.c: $(srcdir)/ext/dl/callback/mkcallback.rb $(srcdir)/ext/dl/dl.h
 	$(ECHO) generating $@
-	$(Q) $(CHDIR) $(@D) && $(exec) $(MAKE) -f prereq.mk $(mflags) \
-		Q=$(Q) ECHO=$(ECHO) top_srcdir=../.. srcdir=. VPATH=../.. BASERUBY="$(BASERUBY)"
+	$(Q) $(CHDIR) $(@D) && $(exec) $(MAKE) -f depend $(MFLAGS) \
+		Q=$(Q) ECHO=$(ECHO) top_srcdir=../.. srcdir=. VPATH=../.. RUBY="$(BASERUBY)"
 
 $(srcdir)/ext/rbconfig/sizeof/sizes.c: $(srcdir)/ext/rbconfig/sizeof/depend \
-		$(srcdir)/tool/generic_erb.rb $(srcdir)/template/sizes.c.tmpl $(srcdir)/configure.ac
+		$(srcdir)/tool/generic_erb.rb $(srcdir)/template/sizes.c.tmpl $(srcdir)/configure.in
 	$(ECHO) generating $@
-	$(Q) $(CHDIR) $(@D) && \
-	sed '/AUTOGENERATED/q' depend | \
-	$(exec) $(MAKE) -f - $(mflags) \
-		Q=$(Q) ECHO=$(ECHO) top_srcdir=../../.. srcdir=. VPATH=../../.. RUBY="$(BASERUBY)" $(@F)
-
-$(srcdir)/ext/rbconfig/sizeof/limits.c: $(srcdir)/ext/rbconfig/sizeof/depend \
-		$(srcdir)/tool/generic_erb.rb $(srcdir)/template/limits.c.tmpl
-	$(ECHO) generating $@
-	$(Q) $(CHDIR) $(@D) && \
-	sed '/AUTOGENERATED/q' depend | \
-	$(exec) $(MAKE) -f - $(mflags) \
-		Q=$(Q) ECHO=$(ECHO) top_srcdir=../../.. srcdir=. VPATH=../../.. RUBY="$(BASERUBY)" $(@F)
-
-$(srcdir)/ext/socket/constdefs.c: $(srcdir)/ext/socket/depend
-	$(Q) $(CHDIR) $(@D) && \
-	sed '/AUTOGENERATED/q' depend | \
-	$(exec) $(MAKE) -f - $(mflags) \
-		Q=$(Q) ECHO=$(ECHO) top_srcdir=../.. srcdir=. VPATH=../.. RUBY="$(BASERUBY)"
+	$(Q) $(CHDIR) $(@D) && $(exec) $(MAKE) -f depend $(MFLAGS) \
+		Q=$(Q) ECHO=$(ECHO) top_srcdir=../../.. srcdir=. VPATH=../../.. RUBY="$(BASERUBY)"
 
 ##
 
@@ -1047,7 +987,7 @@ runruby: $(PROGRAM) PHONY
 	$(RUNRUBY) $(TESTRUN_SCRIPT)
 
 parse: fake miniruby$(EXEEXT) PHONY
-	$(BTESTRUBY) --dump=parsetree_with_comment,insns $(TESTRUN_SCRIPT)
+	$(BTESTRUBY) $(srcdir)/tool/parse.rb $(TESTRUN_SCRIPT)
 
 bisect: PHONY
 	$(srcdir)/tool/bisect.sh miniruby $(srcdir)
@@ -1059,29 +999,23 @@ 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: miniruby$(EXEEXT) PHONY
+benchmark: $(PROGRAM) PHONY
 	$(BASERUBY) $(srcdir)/benchmark/driver.rb -v \
-	            --executables="$(COMPARE_RUBY) -I$(srcdir)/lib -I. -I$(EXTOUT)/common --disable-gem; built-ruby::$(MINIRUBY) --disable-gem" \
+	            --executables="$(COMPARE_RUBY); built-ruby::$(RUNRUBY)" \
 	            --pattern='bm_' --directory=$(srcdir)/benchmark $(OPTS)
 
-benchmark-each: miniruby$(EXEEXT) PHONY
+benchmark-each: $(PROGRAM) PHONY
 	$(BASERUBY) $(srcdir)/benchmark/driver.rb -v \
-	            --executables="$(COMPARE_RUBY) -I$(srcdir)/lib -I. -I$(EXTOUT)/common --disable-gem; built-ruby::$(MINIRUBY) --disable-gem" \
+	            --executables="$(COMPARE_RUBY); built-ruby::$(RUNRUBY)" \
 	            --pattern=$(ITEM) --directory=$(srcdir)/benchmark $(OPTS)
 
-tbench: miniruby$(EXEEXT) PHONY
+tbench: $(PROGRAM) PHONY
 	$(BASERUBY) $(srcdir)/benchmark/driver.rb -v \
-	            --executables="$(COMPARE_RUBY) -I$(srcdir)/lib -I. -I$(EXTOUT)/common --disable-gem; built-ruby::$(MINIRUBY) --disable-gem" \
+	            --executables="$(COMPARE_RUBY); built-ruby::$(RUNRUBY)" \
 	            --pattern='bmx_' --directory=$(srcdir)/benchmark $(OPTS)
 
 run.gdb:
-	echo set breakpoint pending on         > run.gdb
-	echo b ruby_debug_breakpoint          >> 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
@@ -1100,1834 +1034,70 @@ gdb: miniruby$(EXEEXT) run.gdb PHONY
 gdb-ruby: $(PROGRAM) run.gdb PHONY
 	$(Q) $(RUNRUBY_COMMAND) $(RUNRUBY_DEBUGGER) -- $(TESTRUN_SCRIPT)
 
-LLDB_INIT = command script import -r $(srcdir)/misc/lldb_cruby.py
-
-lldb: miniruby$(EXEEXT) PHONY
-	lldb -o '$(LLDB_INIT)' miniruby$(EXEEXT) -- $(TESTRUN_SCRIPT)
-
-lldb-ruby: $(PROGRAM) PHONY
-	lldb $(enable_shared:yes=-o 'target modules add ${LIBRUBY_SO}') -o '$(LLDB_INIT)' $(PROGRAM) -- $(TESTRUN_SCRIPT)
-
-DISTPKGS = gzip,zip,all
 dist:
-	$(BASERUBY) $(srcdir)/tool/make-snapshot \
-	-srcdir=$(srcdir) -packages=$(DISTPKGS) \
-	-unicode-version=$(UNICODE_VERSION) \
-	tmp $(RELNAME)
-
-up:: update-remote
+	$(BASERUBY) $(srcdir)/tool/make-snapshot tmp $(RELNAME)
 
 up::
-	-$(Q)$(MAKE) $(mflags) Q=$(Q) REVISION_FORCE=PHONY "$(REVISION_H)"
+	-$(Q)$(MAKE) $(MFLAGS) REVISION_FORCE=PHONY "$(REVISION_H)"
 
-up::
-	-$(Q)$(MAKE) $(mflags) Q=$(Q) after-update
-
-after-update:: extract-extlibs
-
-update-remote:: update-src update-download
-update-download:: update-unicode update-gems download-extlibs
-
-update-mspec:
-update-rubyspec:
-
-update-config_files: PHONY
-	$(Q) $(BASERUBY) -C "$(srcdir)" tool/downloader.rb -d tool -e gnu \
-	    config.guess config.sub
-
-update-gems: PHONY
-	$(ECHO) Downloading bundled gem files...
-	$(Q) $(BASERUBY) -C "$(srcdir)" \
-	    -I./tool -rdownloader -answ \
-	    -e 'gem, ver = *$$F' \
-	    -e 'old = Dir.glob("gems/#{gem}-*.gem")' \
-	    -e 'gem = "#{gem}-#{ver}.gem"' \
-	    -e 'Downloader::RubyGems.download(gem, "gems", nil) and' \
-	    -e '(old.delete("gems/#{gem}"); !old.empty?) and' \
-	    -e 'File.unlink(*old) and' \
-	    -e 'FileUtils.rm_rf(old.map{'"|n|"'n.chomp(".gem")})' \
-	    gems/bundled_gems
-
-extract-gems: PHONY
-	$(ECHO) Extracting bundled gem files...
-	$(Q) $(RUNRUBY) -C "$(srcdir)/gems" \
-	    -I../tool -rgem-unpack -answ \
-	    -e 'gem, ver = *$$F' \
-	    -e 'Gem.unpack("#{gem}-#{ver}.gem")' \
-	    bundled_gems
-
-update-bundled_gems: PHONY
-	$(Q) $(RUNRUBY) -rrubygems \
-	    -pla \
-	    -e '$$_=Gem::SpecFetcher.fetcher.detect(:latest) {'"|s|" \
-	    -e   'if s.platform=="ruby"&&s.name==$$F[0]' \
-	    -e     'break [s.name, s.version, *$$F[2..-1]].join(" ")' \
-	    -e   'end' \
-	    -e '}' \
-	     "$(srcdir)/gems/bundled_gems" | \
-	"$(IFCHANGE)" "$(srcdir)/gems/bundled_gems" -
-
-test-bundled-gems-precheck: $(arch)-fake.rb programs
-
-test-bundled-gems-fetch: $(PREP)
-	$(Q) $(BASERUBY) -C $(srcdir)/gems ../tool/fetch-bundled_gems.rb src bundled_gems
-
-test-bundled-gems-prepare: test-bundled-gems-precheck test-bundled-gems-fetch
-	$(XRUBY) -C "$(srcdir)" bin/gem install --no-ri --no-rdoc \
-		--install-dir .bundle --conservative "bundler" "minitest:~> 5" 'test-unit' 'rake' 'hoe' 'yard' 'pry' 'packnga'
-
-PREPARE_BUNDLED_GEMS = test-bundled-gems-prepare
-test-bundled-gems: $(TEST_RUNNABLE)-test-bundled-gems
-yes-test-bundled-gems: test-bundled-gems-run
-no-test-bundled-gems:
-test-bundled-gems-run: $(PREPARE_BUNDLED_GEMS)
-
-UNICODE_FILES = $(UNICODE_SRC_DATA_DIR)/UnicodeData.txt \
-		$(UNICODE_SRC_DATA_DIR)/CompositionExclusions.txt \
-		$(UNICODE_SRC_DATA_DIR)/NormalizationTest.txt \
-		$(UNICODE_SRC_DATA_DIR)/CaseFolding.txt \
-		$(UNICODE_SRC_DATA_DIR)/SpecialCasing.txt \
-		$(empty)
-
-UNICODE_PROPERTY_FILES =  \
-		$(UNICODE_SRC_DATA_DIR)/Blocks.txt \
-		$(UNICODE_SRC_DATA_DIR)/DerivedAge.txt \
-		$(UNICODE_SRC_DATA_DIR)/DerivedCoreProperties.txt \
-		$(UNICODE_SRC_DATA_DIR)/PropList.txt \
-		$(UNICODE_SRC_DATA_DIR)/PropertyAliases.txt \
-		$(UNICODE_SRC_DATA_DIR)/PropertyValueAliases.txt \
-		$(UNICODE_SRC_DATA_DIR)/Scripts.txt \
-		$(UNICODE_SRC_DATA_DIR)/auxiliary/GraphemeBreakProperty.txt \
-		$(empty)
-
-UNICODE_EMOJI_FILES = \
-		$(UNICODE_SRC_EMOJI_DATA_DIR)/emoji-data.txt \
-		$(empty)
-
-update-unicode: $(UNICODE_FILES)
-
-CACHE_DIR = $(srcdir)/.downloaded-cache
-UNICODE_DOWNLOAD = \
-	$(BASERUBY) $(srcdir)/tool/downloader.rb \
-	    --cache-dir=$(CACHE_DIR) \
-	    -d $(UNICODE_SRC_DATA_DIR) \
-	    -p $(UNICODE_VERSION)/ucd \
-	    -e $(ALWAYS_UPDATE_UNICODE:yes=-a) unicode
-UNICODE_EMOJI_DOWNLOAD = \
-	$(BASERUBY) $(srcdir)/tool/downloader.rb \
-	    --cache-dir=$(CACHE_DIR) \
-	    -d $(UNICODE_SRC_EMOJI_DATA_DIR) \
-	    -p emoji/$(UNICODE_EMOJI_VERSION) \
-	    -e $(ALWAYS_UPDATE_UNICODE:yes=-a) unicode
-
-$(UNICODE_PROPERTY_FILES): update-unicode-property-files
-update-unicode-property-files:
-	$(ECHO) Downloading Unicode $(UNICODE_VERSION) property files...
-	$(Q) $(MAKEDIRS) "$(UNICODE_SRC_DATA_DIR)/auxiliary"
-	$(Q) $(UNICODE_DOWNLOAD) $(UNICODE_PROPERTY_FILES)
-	$(ECHO) Downloading Unicode emoji $(UNICODE_EMOJI_VERSION) files...
-	$(Q) $(MAKEDIRS) "$(UNICODE_SRC_EMOJI_DATA_DIR)"
-	$(Q) $(UNICODE_EMOJI_DOWNLOAD) $(UNICODE_EMOJI_FILES)
-
-$(UNICODE_FILES): update-unicode-files
-update-unicode-files:
-	$(ECHO) Downloading Unicode $(UNICODE_VERSION) data files...
-	$(Q) $(MAKEDIRS) "$(UNICODE_SRC_DATA_DIR)"
-	$(Q) $(UNICODE_DOWNLOAD) $(UNICODE_FILES)
-
-$(srcdir)/$(HAVE_BASERUBY:yes=lib/unicode_normalize/tables.rb): \
-	$(UNICODE_SRC_DATA_DIR)/.unicode-tables.time
-
-$(UNICODE_SRC_DATA_DIR)/$(ALWAYS_UPDATE_UNICODE:yes=.unicode-tables.time): \
-	$(UNICODE_FILES) $(UNICODE_PROPERTY_FILES)
-
-touch-unicode-files:
-	$(MAKEDIRS) $(UNICODE_SRC_DATA_DIR)
-	touch $(UNICODE_SRC_DATA_DIR)/.unicode-tables.time $(UNICODE_DATA_HEADERS)
-
-$(UNICODE_SRC_DATA_DIR)/.unicode-tables.time: $(srcdir)/tool/generic_erb.rb \
-		$(srcdir)/template/unicode_norm_gen.tmpl \
-		$(ALWAYS_UPDATE_UNICODE:yes=update-unicode)
-	$(Q) $(MAKE) $(@D)
-	$(Q) $(BASERUBY) $(srcdir)/tool/generic_erb.rb \
-		-c -t$@ -o $(srcdir)/lib/unicode_normalize/tables.rb \
-		-I $(srcdir) \
-		$(srcdir)/template/unicode_norm_gen.tmpl \
-		$(UNICODE_DATA_DIR) lib/unicode_normalize
-
-$(UNICODE_SRC_DATA_DIR):
-	$(Q) $(exec) $(MAKEDIRS) $@ || exit && echo $(MAKE)
-
-$(UNICODE_HDR_DIR)/$(ALWAYS_UPDATE_UNICODE:yes=name2ctype.h): \
-		$(srcdir)/tool/enc-unicode.rb \
-		$(UNICODE_SRC_DATA_DIR)/UnicodeData.txt \
-		$(UNICODE_PROPERTY_FILES)
-
-$(UNICODE_HDR_DIR)/name2ctype.h:
-	$(MAKEDIRS) $(@D)
-	$(BOOTSTRAPRUBY) $(srcdir)/tool/enc-unicode.rb --header \
-		$(UNICODE_SRC_DATA_DIR) $(UNICODE_SRC_EMOJI_DATA_DIR) > $@.new
-	$(MV) $@.new $@
-
-# the next non-comment line was:
-# $(UNICODE_HDR_DIR)/casefold.h: $(srcdir)/enc/unicode/case-folding.rb \
-# but was changed to make sure CI works on systems that don't have gperf
-unicode-up: $(UNICODE_DATA_HEADERS)
-
-$(UNICODE_HDR_DIR)/$(ALWAYS_UPDATE_UNICODE:yes=casefold.h): \
-		$(srcdir)/enc/unicode/case-folding.rb \
-		$(UNICODE_SRC_DATA_DIR)/UnicodeData.txt \
-		$(UNICODE_SRC_DATA_DIR)/SpecialCasing.txt \
-		$(UNICODE_SRC_DATA_DIR)/CaseFolding.txt
-
-$(UNICODE_HDR_DIR)/casefold.h:
-	$(MAKEDIRS) $(@D)
-	$(Q) $(BASERUBY) $(srcdir)/enc/unicode/case-folding.rb \
-		--output-file=$@ \
-		--mapping-data-directory=$(UNICODE_SRC_DATA_DIR)
-
-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
+update-config_files: $(srcdir)/tool/config.guess $(srcdir)/tool/config.sub
+$(srcdir)/tool/config.guess:
+	$(Q) $(BASERUBY) -C $(@D) get-config_files $(@F)
+$(srcdir)/tool/config.sub:
+	$(Q) $(BASERUBY) -C $(@D) get-config_files $(@F)
 
 info: info-program info-libruby_a info-libruby_so info-arch
-info-program: PHONY
+info-program:
 	@echo PROGRAM=$(PROGRAM)
-info-libruby_a: PHONY
+info-libruby_a:
 	@echo LIBRUBY_A=$(LIBRUBY_A)
-info-libruby_so: PHONY
+info-libruby_so:
 	@echo LIBRUBY_SO=$(LIBRUBY_SO)
-info-arch: PHONY
+info-arch:
 	@echo arch=$(arch)
 
 change: PHONY
 	$(BASERUBY) -C "$(srcdir)" ./tool/change_maker.rb $(CHANGES) > change.log
 
-exam: check test-spec
-
-love: sudo-precheck up all test exam install
+love: sudo-precheck up all test install test-all
 	@echo love is all you need
 
-great: exam
-
-yes-test-all no-test-all: sudo-precheck
+yes-test-all: sudo-precheck
 
-sudo-precheck: PHONY
+sudo-precheck:
 	@$(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" \
 	"" \
 	"targets:" \
-	"  all (default):       builds all of below" \
-	"  miniruby:            builds only miniruby" \
-	"  encs:                builds encodings" \
-	"  exts:                builds extensions" \
-	"  main:                builds encodings, extensions and ruby" \
-	"  docs:                builds documents" \
-	"  install-capi:        builds C API documents" \
-	"  run:                 runs test.rb by miniruby" \
-	"  runruby:             runs test.rb by ruby you just built" \
-	"  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-spec" \
-	"  test:                ruby core tests" \
-	"  test-all:            all ruby tests [TESTOPTS=-j4 TESTS=<test files>]" \
-	"  test-spec:           run the Ruby spec suite" \
-	"  test-rubyspec:       same as test-spec" \
-	"  test-bundled-gems:   run the test suite of bundled gems" \
-	"  up:                  update local copy and autogenerated files" \
-	"  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 stuff" \
-	"  clean:               clean for tarball" \
-	"  distclean:           clean for repository" \
-	"  change:              make change log template" \
-	"  golf:                for golfers" \
+	"  all (default):   builds all of below" \
+	"  miniruby:        builds only miniruby" \
+	"  encs:            builds encodings" \
+	"  exts:            builds extensions" \
+	"  main:            builds encodings, extensions and ruby" \
+	"  docs:            builds documents" \
+	"  run:             runs test.rb by miniruby" \
+	"  runruby:         runs test.rb by ruby you just built" \
+	"  gdb:             runs test.rb by miniruby under gdb" \
+	"  gdb-ruby:        runs test.rb by ruby under gdb" \
+	"  check:           equals make test test-all" \
+	"  test:            ruby core tests" \
+	"  test-all:        all ruby tests [TESTS=<test files>]" \
+	"  test-rubyspec:   run RubySpec test suite" \
+	"  update-rubyspec: update local copy of RubySpec" \
+	"  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" \
+	"  clean:           clean for tarball" \
+	"  distclean:       clean for repository" \
+	"  change:          make change log template" \
+	"  golf:            for golfers" \
 	"" \
 	"see DeveloperHowto for more detail: " \
-	"  https://bugs.ruby-lang.org/projects/ruby/wiki/DeveloperHowto" \
+	"  http://bugs.ruby-lang.org/wiki/ruby/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): {$(VPATH)}debug_counter.h
-array.$(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): {$(VPATH)}onigmo.h
-array.$(OBJEXT): {$(VPATH)}oniguruma.h
-array.$(OBJEXT): {$(VPATH)}probes.dmyh
-array.$(OBJEXT): {$(VPATH)}probes.h
-array.$(OBJEXT): {$(VPATH)}ruby_assert.h
-array.$(OBJEXT): {$(VPATH)}st.h
-array.$(OBJEXT): {$(VPATH)}subst.h
-array.$(OBJEXT): {$(VPATH)}util.h
-bignum.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-bignum.$(OBJEXT): $(top_srcdir)/include/ruby.h
-bignum.$(OBJEXT): {$(VPATH)}bignum.c
-bignum.$(OBJEXT): {$(VPATH)}config.h
-bignum.$(OBJEXT): {$(VPATH)}defines.h
-bignum.$(OBJEXT): {$(VPATH)}encoding.h
-bignum.$(OBJEXT): {$(VPATH)}id.h
-bignum.$(OBJEXT): {$(VPATH)}intern.h
-bignum.$(OBJEXT): {$(VPATH)}internal.h
-bignum.$(OBJEXT): {$(VPATH)}io.h
-bignum.$(OBJEXT): {$(VPATH)}missing.h
-bignum.$(OBJEXT): {$(VPATH)}onigmo.h
-bignum.$(OBJEXT): {$(VPATH)}oniguruma.h
-bignum.$(OBJEXT): {$(VPATH)}ruby_assert.h
-bignum.$(OBJEXT): {$(VPATH)}st.h
-bignum.$(OBJEXT): {$(VPATH)}subst.h
-bignum.$(OBJEXT): {$(VPATH)}thread.h
-bignum.$(OBJEXT): {$(VPATH)}util.h
-class.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-class.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-class.$(OBJEXT): $(CCAN_DIR)/list/list.h
-class.$(OBJEXT): $(CCAN_DIR)/str/str.h
-class.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-class.$(OBJEXT): $(top_srcdir)/include/ruby.h
-class.$(OBJEXT): {$(VPATH)}class.c
-class.$(OBJEXT): {$(VPATH)}config.h
-class.$(OBJEXT): {$(VPATH)}constant.h
-class.$(OBJEXT): {$(VPATH)}defines.h
-class.$(OBJEXT): {$(VPATH)}encoding.h
-class.$(OBJEXT): {$(VPATH)}id.h
-class.$(OBJEXT): {$(VPATH)}id_table.h
-class.$(OBJEXT): {$(VPATH)}intern.h
-class.$(OBJEXT): {$(VPATH)}internal.h
-class.$(OBJEXT): {$(VPATH)}io.h
-class.$(OBJEXT): {$(VPATH)}method.h
-class.$(OBJEXT): {$(VPATH)}missing.h
-class.$(OBJEXT): {$(VPATH)}node.h
-class.$(OBJEXT): {$(VPATH)}onigmo.h
-class.$(OBJEXT): {$(VPATH)}oniguruma.h
-class.$(OBJEXT): {$(VPATH)}ruby_assert.h
-class.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-class.$(OBJEXT): {$(VPATH)}st.h
-class.$(OBJEXT): {$(VPATH)}subst.h
-class.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-class.$(OBJEXT): {$(VPATH)}thread_native.h
-class.$(OBJEXT): {$(VPATH)}vm_core.h
-class.$(OBJEXT): {$(VPATH)}vm_debug.h
-class.$(OBJEXT): {$(VPATH)}vm_opts.h
-compar.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-compar.$(OBJEXT): {$(VPATH)}compar.c
-compar.$(OBJEXT): {$(VPATH)}config.h
-compar.$(OBJEXT): {$(VPATH)}defines.h
-compar.$(OBJEXT): {$(VPATH)}id.h
-compar.$(OBJEXT): {$(VPATH)}intern.h
-compar.$(OBJEXT): {$(VPATH)}missing.h
-compar.$(OBJEXT): {$(VPATH)}st.h
-compar.$(OBJEXT): {$(VPATH)}subst.h
-compile.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-compile.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-compile.$(OBJEXT): $(CCAN_DIR)/list/list.h
-compile.$(OBJEXT): $(CCAN_DIR)/str/str.h
-compile.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-compile.$(OBJEXT): $(hdrdir)/ruby/version.h
-compile.$(OBJEXT): $(top_srcdir)/include/ruby.h
-compile.$(OBJEXT): {$(VPATH)}compile.c
-compile.$(OBJEXT): {$(VPATH)}config.h
-compile.$(OBJEXT): {$(VPATH)}defines.h
-compile.$(OBJEXT): {$(VPATH)}encindex.h
-compile.$(OBJEXT): {$(VPATH)}encoding.h
-compile.$(OBJEXT): {$(VPATH)}gc.h
-compile.$(OBJEXT): {$(VPATH)}id.h
-compile.$(OBJEXT): {$(VPATH)}id_table.h
-compile.$(OBJEXT): {$(VPATH)}insns.inc
-compile.$(OBJEXT): {$(VPATH)}insns_info.inc
-compile.$(OBJEXT): {$(VPATH)}intern.h
-compile.$(OBJEXT): {$(VPATH)}internal.h
-compile.$(OBJEXT): {$(VPATH)}io.h
-compile.$(OBJEXT): {$(VPATH)}iseq.h
-compile.$(OBJEXT): {$(VPATH)}method.h
-compile.$(OBJEXT): {$(VPATH)}missing.h
-compile.$(OBJEXT): {$(VPATH)}node.h
-compile.$(OBJEXT): {$(VPATH)}onigmo.h
-compile.$(OBJEXT): {$(VPATH)}oniguruma.h
-compile.$(OBJEXT): {$(VPATH)}opt_sc.inc
-compile.$(OBJEXT): {$(VPATH)}optinsn.inc
-compile.$(OBJEXT): {$(VPATH)}optunifs.inc
-compile.$(OBJEXT): {$(VPATH)}re.h
-compile.$(OBJEXT): {$(VPATH)}regex.h
-compile.$(OBJEXT): {$(VPATH)}ruby_assert.h
-compile.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-compile.$(OBJEXT): {$(VPATH)}st.h
-compile.$(OBJEXT): {$(VPATH)}subst.h
-compile.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-compile.$(OBJEXT): {$(VPATH)}thread_native.h
-compile.$(OBJEXT): {$(VPATH)}vm_core.h
-compile.$(OBJEXT): {$(VPATH)}vm_debug.h
-compile.$(OBJEXT): {$(VPATH)}vm_opts.h
-complex.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-complex.$(OBJEXT): $(top_srcdir)/include/ruby.h
-complex.$(OBJEXT): {$(VPATH)}complex.c
-complex.$(OBJEXT): {$(VPATH)}config.h
-complex.$(OBJEXT): {$(VPATH)}defines.h
-complex.$(OBJEXT): {$(VPATH)}encoding.h
-complex.$(OBJEXT): {$(VPATH)}intern.h
-complex.$(OBJEXT): {$(VPATH)}internal.h
-complex.$(OBJEXT): {$(VPATH)}io.h
-complex.$(OBJEXT): {$(VPATH)}missing.h
-complex.$(OBJEXT): {$(VPATH)}onigmo.h
-complex.$(OBJEXT): {$(VPATH)}oniguruma.h
-complex.$(OBJEXT): {$(VPATH)}ruby_assert.h
-complex.$(OBJEXT): {$(VPATH)}st.h
-complex.$(OBJEXT): {$(VPATH)}subst.h
-cont.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-cont.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-cont.$(OBJEXT): $(CCAN_DIR)/list/list.h
-cont.$(OBJEXT): $(CCAN_DIR)/str/str.h
-cont.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-cont.$(OBJEXT): $(top_srcdir)/include/ruby.h
-cont.$(OBJEXT): {$(VPATH)}config.h
-cont.$(OBJEXT): {$(VPATH)}cont.c
-cont.$(OBJEXT): {$(VPATH)}defines.h
-cont.$(OBJEXT): {$(VPATH)}encoding.h
-cont.$(OBJEXT): {$(VPATH)}eval_intern.h
-cont.$(OBJEXT): {$(VPATH)}gc.h
-cont.$(OBJEXT): {$(VPATH)}id.h
-cont.$(OBJEXT): {$(VPATH)}intern.h
-cont.$(OBJEXT): {$(VPATH)}internal.h
-cont.$(OBJEXT): {$(VPATH)}io.h
-cont.$(OBJEXT): {$(VPATH)}method.h
-cont.$(OBJEXT): {$(VPATH)}missing.h
-cont.$(OBJEXT): {$(VPATH)}node.h
-cont.$(OBJEXT): {$(VPATH)}onigmo.h
-cont.$(OBJEXT): {$(VPATH)}oniguruma.h
-cont.$(OBJEXT): {$(VPATH)}ruby_assert.h
-cont.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-cont.$(OBJEXT): {$(VPATH)}st.h
-cont.$(OBJEXT): {$(VPATH)}subst.h
-cont.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-cont.$(OBJEXT): {$(VPATH)}thread_native.h
-cont.$(OBJEXT): {$(VPATH)}vm_core.h
-cont.$(OBJEXT): {$(VPATH)}vm_debug.h
-cont.$(OBJEXT): {$(VPATH)}vm_opts.h
-debug.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-debug.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-debug.$(OBJEXT): $(CCAN_DIR)/list/list.h
-debug.$(OBJEXT): $(CCAN_DIR)/str/str.h
-debug.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-debug.$(OBJEXT): $(top_srcdir)/include/ruby.h
-debug.$(OBJEXT): {$(VPATH)}config.h
-debug.$(OBJEXT): {$(VPATH)}debug.c
-debug.$(OBJEXT): {$(VPATH)}defines.h
-debug.$(OBJEXT): {$(VPATH)}encoding.h
-debug.$(OBJEXT): {$(VPATH)}eval_intern.h
-debug.$(OBJEXT): {$(VPATH)}gc.h
-debug.$(OBJEXT): {$(VPATH)}id.h
-debug.$(OBJEXT): {$(VPATH)}intern.h
-debug.$(OBJEXT): {$(VPATH)}internal.h
-debug.$(OBJEXT): {$(VPATH)}io.h
-debug.$(OBJEXT): {$(VPATH)}method.h
-debug.$(OBJEXT): {$(VPATH)}missing.h
-debug.$(OBJEXT): {$(VPATH)}node.h
-debug.$(OBJEXT): {$(VPATH)}onigmo.h
-debug.$(OBJEXT): {$(VPATH)}oniguruma.h
-debug.$(OBJEXT): {$(VPATH)}ruby_assert.h
-debug.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-debug.$(OBJEXT): {$(VPATH)}st.h
-debug.$(OBJEXT): {$(VPATH)}subst.h
-debug.$(OBJEXT): {$(VPATH)}symbol.h
-debug.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-debug.$(OBJEXT): {$(VPATH)}thread_native.h
-debug.$(OBJEXT): {$(VPATH)}util.h
-debug.$(OBJEXT): {$(VPATH)}vm_core.h
-debug.$(OBJEXT): {$(VPATH)}vm_debug.h
-debug.$(OBJEXT): {$(VPATH)}vm_opts.h
-debug_counter.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-debug_counter.$(OBJEXT): $(top_srcdir)/include/ruby.h
-debug_counter.$(OBJEXT): {$(VPATH)}config.h
-debug_counter.$(OBJEXT): {$(VPATH)}debug_counter.c
-debug_counter.$(OBJEXT): {$(VPATH)}debug_counter.h
-debug_counter.$(OBJEXT): {$(VPATH)}defines.h
-debug_counter.$(OBJEXT): {$(VPATH)}encoding.h
-debug_counter.$(OBJEXT): {$(VPATH)}intern.h
-debug_counter.$(OBJEXT): {$(VPATH)}internal.h
-debug_counter.$(OBJEXT): {$(VPATH)}io.h
-debug_counter.$(OBJEXT): {$(VPATH)}missing.h
-debug_counter.$(OBJEXT): {$(VPATH)}onigmo.h
-debug_counter.$(OBJEXT): {$(VPATH)}oniguruma.h
-debug_counter.$(OBJEXT): {$(VPATH)}st.h
-debug_counter.$(OBJEXT): {$(VPATH)}subst.h
-dir.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-dir.$(OBJEXT): $(top_srcdir)/include/ruby.h
-dir.$(OBJEXT): {$(VPATH)}config.h
-dir.$(OBJEXT): {$(VPATH)}defines.h
-dir.$(OBJEXT): {$(VPATH)}dir.c
-dir.$(OBJEXT): {$(VPATH)}encindex.h
-dir.$(OBJEXT): {$(VPATH)}encoding.h
-dir.$(OBJEXT): {$(VPATH)}intern.h
-dir.$(OBJEXT): {$(VPATH)}internal.h
-dir.$(OBJEXT): {$(VPATH)}io.h
-dir.$(OBJEXT): {$(VPATH)}missing.h
-dir.$(OBJEXT): {$(VPATH)}onigmo.h
-dir.$(OBJEXT): {$(VPATH)}oniguruma.h
-dir.$(OBJEXT): {$(VPATH)}st.h
-dir.$(OBJEXT): {$(VPATH)}subst.h
-dir.$(OBJEXT): {$(VPATH)}util.h
-dln.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-dln.$(OBJEXT): {$(VPATH)}config.h
-dln.$(OBJEXT): {$(VPATH)}defines.h
-dln.$(OBJEXT): {$(VPATH)}dln.c
-dln.$(OBJEXT): {$(VPATH)}dln.h
-dln.$(OBJEXT): {$(VPATH)}intern.h
-dln.$(OBJEXT): {$(VPATH)}missing.h
-dln.$(OBJEXT): {$(VPATH)}st.h
-dln.$(OBJEXT): {$(VPATH)}subst.h
-dln_find.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-dln_find.$(OBJEXT): {$(VPATH)}config.h
-dln_find.$(OBJEXT): {$(VPATH)}defines.h
-dln_find.$(OBJEXT): {$(VPATH)}dln.h
-dln_find.$(OBJEXT): {$(VPATH)}dln_find.c
-dln_find.$(OBJEXT): {$(VPATH)}intern.h
-dln_find.$(OBJEXT): {$(VPATH)}missing.h
-dln_find.$(OBJEXT): {$(VPATH)}st.h
-dln_find.$(OBJEXT): {$(VPATH)}subst.h
-dmydln.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-dmydln.$(OBJEXT): {$(VPATH)}config.h
-dmydln.$(OBJEXT): {$(VPATH)}defines.h
-dmydln.$(OBJEXT): {$(VPATH)}dmydln.c
-dmydln.$(OBJEXT): {$(VPATH)}intern.h
-dmydln.$(OBJEXT): {$(VPATH)}missing.h
-dmydln.$(OBJEXT): {$(VPATH)}st.h
-dmydln.$(OBJEXT): {$(VPATH)}subst.h
-dmyenc.$(OBJEXT): {$(VPATH)}dmyenc.c
-dmyext.$(OBJEXT): {$(VPATH)}dmyext.c
-enc/ascii.$(OBJEXT): {$(VPATH)}config.h
-enc/ascii.$(OBJEXT): {$(VPATH)}defines.h
-enc/ascii.$(OBJEXT): {$(VPATH)}enc/ascii.c
-enc/ascii.$(OBJEXT): {$(VPATH)}encindex.h
-enc/ascii.$(OBJEXT): {$(VPATH)}missing.h
-enc/ascii.$(OBJEXT): {$(VPATH)}oniguruma.h
-enc/ascii.$(OBJEXT): {$(VPATH)}regenc.h
-enc/trans/newline.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-enc/trans/newline.$(OBJEXT): {$(VPATH)}config.h
-enc/trans/newline.$(OBJEXT): {$(VPATH)}defines.h
-enc/trans/newline.$(OBJEXT): {$(VPATH)}enc/trans/newline.c
-enc/trans/newline.$(OBJEXT): {$(VPATH)}intern.h
-enc/trans/newline.$(OBJEXT): {$(VPATH)}missing.h
-enc/trans/newline.$(OBJEXT): {$(VPATH)}st.h
-enc/trans/newline.$(OBJEXT): {$(VPATH)}subst.h
-enc/trans/newline.$(OBJEXT): {$(VPATH)}transcode_data.h
-enc/unicode.$(OBJEXT): $(UNICODE_HDR_DIR)/casefold.h
-enc/unicode.$(OBJEXT): $(UNICODE_HDR_DIR)/name2ctype.h
-enc/unicode.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-enc/unicode.$(OBJEXT): {$(VPATH)}config.h
-enc/unicode.$(OBJEXT): {$(VPATH)}defines.h
-enc/unicode.$(OBJEXT): {$(VPATH)}enc/unicode.c
-enc/unicode.$(OBJEXT): {$(VPATH)}intern.h
-enc/unicode.$(OBJEXT): {$(VPATH)}missing.h
-enc/unicode.$(OBJEXT): {$(VPATH)}oniguruma.h
-enc/unicode.$(OBJEXT): {$(VPATH)}regenc.h
-enc/unicode.$(OBJEXT): {$(VPATH)}regint.h
-enc/unicode.$(OBJEXT): {$(VPATH)}st.h
-enc/unicode.$(OBJEXT): {$(VPATH)}subst.h
-enc/us_ascii.$(OBJEXT): {$(VPATH)}config.h
-enc/us_ascii.$(OBJEXT): {$(VPATH)}defines.h
-enc/us_ascii.$(OBJEXT): {$(VPATH)}enc/us_ascii.c
-enc/us_ascii.$(OBJEXT): {$(VPATH)}encindex.h
-enc/us_ascii.$(OBJEXT): {$(VPATH)}missing.h
-enc/us_ascii.$(OBJEXT): {$(VPATH)}oniguruma.h
-enc/us_ascii.$(OBJEXT): {$(VPATH)}regenc.h
-enc/utf_8.$(OBJEXT): {$(VPATH)}config.h
-enc/utf_8.$(OBJEXT): {$(VPATH)}defines.h
-enc/utf_8.$(OBJEXT): {$(VPATH)}enc/utf_8.c
-enc/utf_8.$(OBJEXT): {$(VPATH)}encindex.h
-enc/utf_8.$(OBJEXT): {$(VPATH)}missing.h
-enc/utf_8.$(OBJEXT): {$(VPATH)}oniguruma.h
-enc/utf_8.$(OBJEXT): {$(VPATH)}regenc.h
-encoding.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-encoding.$(OBJEXT): $(top_srcdir)/include/ruby.h
-encoding.$(OBJEXT): {$(VPATH)}config.h
-encoding.$(OBJEXT): {$(VPATH)}defines.h
-encoding.$(OBJEXT): {$(VPATH)}encindex.h
-encoding.$(OBJEXT): {$(VPATH)}encoding.c
-encoding.$(OBJEXT): {$(VPATH)}encoding.h
-encoding.$(OBJEXT): {$(VPATH)}intern.h
-encoding.$(OBJEXT): {$(VPATH)}internal.h
-encoding.$(OBJEXT): {$(VPATH)}io.h
-encoding.$(OBJEXT): {$(VPATH)}missing.h
-encoding.$(OBJEXT): {$(VPATH)}onigmo.h
-encoding.$(OBJEXT): {$(VPATH)}oniguruma.h
-encoding.$(OBJEXT): {$(VPATH)}regenc.h
-encoding.$(OBJEXT): {$(VPATH)}ruby_assert.h
-encoding.$(OBJEXT): {$(VPATH)}st.h
-encoding.$(OBJEXT): {$(VPATH)}subst.h
-encoding.$(OBJEXT): {$(VPATH)}util.h
-enum.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-enum.$(OBJEXT): $(top_srcdir)/include/ruby.h
-enum.$(OBJEXT): {$(VPATH)}config.h
-enum.$(OBJEXT): {$(VPATH)}defines.h
-enum.$(OBJEXT): {$(VPATH)}encoding.h
-enum.$(OBJEXT): {$(VPATH)}enum.c
-enum.$(OBJEXT): {$(VPATH)}id.h
-enum.$(OBJEXT): {$(VPATH)}intern.h
-enum.$(OBJEXT): {$(VPATH)}internal.h
-enum.$(OBJEXT): {$(VPATH)}io.h
-enum.$(OBJEXT): {$(VPATH)}missing.h
-enum.$(OBJEXT): {$(VPATH)}onigmo.h
-enum.$(OBJEXT): {$(VPATH)}oniguruma.h
-enum.$(OBJEXT): {$(VPATH)}st.h
-enum.$(OBJEXT): {$(VPATH)}subst.h
-enum.$(OBJEXT): {$(VPATH)}symbol.h
-enum.$(OBJEXT): {$(VPATH)}util.h
-enumerator.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-enumerator.$(OBJEXT): $(top_srcdir)/include/ruby.h
-enumerator.$(OBJEXT): {$(VPATH)}config.h
-enumerator.$(OBJEXT): {$(VPATH)}defines.h
-enumerator.$(OBJEXT): {$(VPATH)}encoding.h
-enumerator.$(OBJEXT): {$(VPATH)}enumerator.c
-enumerator.$(OBJEXT): {$(VPATH)}intern.h
-enumerator.$(OBJEXT): {$(VPATH)}internal.h
-enumerator.$(OBJEXT): {$(VPATH)}io.h
-enumerator.$(OBJEXT): {$(VPATH)}missing.h
-enumerator.$(OBJEXT): {$(VPATH)}onigmo.h
-enumerator.$(OBJEXT): {$(VPATH)}oniguruma.h
-enumerator.$(OBJEXT): {$(VPATH)}st.h
-enumerator.$(OBJEXT): {$(VPATH)}subst.h
-error.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-error.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-error.$(OBJEXT): $(CCAN_DIR)/list/list.h
-error.$(OBJEXT): $(CCAN_DIR)/str/str.h
-error.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-error.$(OBJEXT): $(top_srcdir)/include/ruby.h
-error.$(OBJEXT): {$(VPATH)}config.h
-error.$(OBJEXT): {$(VPATH)}defines.h
-error.$(OBJEXT): {$(VPATH)}encoding.h
-error.$(OBJEXT): {$(VPATH)}error.c
-error.$(OBJEXT): {$(VPATH)}id.h
-error.$(OBJEXT): {$(VPATH)}intern.h
-error.$(OBJEXT): {$(VPATH)}internal.h
-error.$(OBJEXT): {$(VPATH)}io.h
-error.$(OBJEXT): {$(VPATH)}known_errors.inc
-error.$(OBJEXT): {$(VPATH)}method.h
-error.$(OBJEXT): {$(VPATH)}missing.h
-error.$(OBJEXT): {$(VPATH)}node.h
-error.$(OBJEXT): {$(VPATH)}onigmo.h
-error.$(OBJEXT): {$(VPATH)}oniguruma.h
-error.$(OBJEXT): {$(VPATH)}ruby_assert.h
-error.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-error.$(OBJEXT): {$(VPATH)}st.h
-error.$(OBJEXT): {$(VPATH)}subst.h
-error.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-error.$(OBJEXT): {$(VPATH)}thread_native.h
-error.$(OBJEXT): {$(VPATH)}vm_core.h
-error.$(OBJEXT): {$(VPATH)}vm_debug.h
-error.$(OBJEXT): {$(VPATH)}vm_opts.h
-eval.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-eval.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-eval.$(OBJEXT): $(CCAN_DIR)/list/list.h
-eval.$(OBJEXT): $(CCAN_DIR)/str/str.h
-eval.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-eval.$(OBJEXT): $(hdrdir)/ruby/version.h
-eval.$(OBJEXT): $(top_srcdir)/include/ruby.h
-eval.$(OBJEXT): {$(VPATH)}config.h
-eval.$(OBJEXT): {$(VPATH)}defines.h
-eval.$(OBJEXT): {$(VPATH)}encoding.h
-eval.$(OBJEXT): {$(VPATH)}eval.c
-eval.$(OBJEXT): {$(VPATH)}eval_error.c
-eval.$(OBJEXT): {$(VPATH)}eval_intern.h
-eval.$(OBJEXT): {$(VPATH)}eval_jump.c
-eval.$(OBJEXT): {$(VPATH)}gc.h
-eval.$(OBJEXT): {$(VPATH)}id.h
-eval.$(OBJEXT): {$(VPATH)}intern.h
-eval.$(OBJEXT): {$(VPATH)}internal.h
-eval.$(OBJEXT): {$(VPATH)}io.h
-eval.$(OBJEXT): {$(VPATH)}iseq.h
-eval.$(OBJEXT): {$(VPATH)}method.h
-eval.$(OBJEXT): {$(VPATH)}missing.h
-eval.$(OBJEXT): {$(VPATH)}node.h
-eval.$(OBJEXT): {$(VPATH)}onigmo.h
-eval.$(OBJEXT): {$(VPATH)}oniguruma.h
-eval.$(OBJEXT): {$(VPATH)}probes.dmyh
-eval.$(OBJEXT): {$(VPATH)}probes.h
-eval.$(OBJEXT): {$(VPATH)}probes_helper.h
-eval.$(OBJEXT): {$(VPATH)}ruby_assert.h
-eval.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-eval.$(OBJEXT): {$(VPATH)}st.h
-eval.$(OBJEXT): {$(VPATH)}subst.h
-eval.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-eval.$(OBJEXT): {$(VPATH)}thread_native.h
-eval.$(OBJEXT): {$(VPATH)}vm.h
-eval.$(OBJEXT): {$(VPATH)}vm_core.h
-eval.$(OBJEXT): {$(VPATH)}vm_debug.h
-eval.$(OBJEXT): {$(VPATH)}vm_opts.h
-explicit_bzero.$(OBJEXT): {$(VPATH)}config.h
-explicit_bzero.$(OBJEXT): {$(VPATH)}explicit_bzero.c
-explicit_bzero.$(OBJEXT): {$(VPATH)}missing.h
-file.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-file.$(OBJEXT): $(top_srcdir)/include/ruby.h
-file.$(OBJEXT): {$(VPATH)}config.h
-file.$(OBJEXT): {$(VPATH)}defines.h
-file.$(OBJEXT): {$(VPATH)}dln.h
-file.$(OBJEXT): {$(VPATH)}encindex.h
-file.$(OBJEXT): {$(VPATH)}encoding.h
-file.$(OBJEXT): {$(VPATH)}file.c
-file.$(OBJEXT): {$(VPATH)}id.h
-file.$(OBJEXT): {$(VPATH)}intern.h
-file.$(OBJEXT): {$(VPATH)}internal.h
-file.$(OBJEXT): {$(VPATH)}io.h
-file.$(OBJEXT): {$(VPATH)}missing.h
-file.$(OBJEXT): {$(VPATH)}onigmo.h
-file.$(OBJEXT): {$(VPATH)}oniguruma.h
-file.$(OBJEXT): {$(VPATH)}st.h
-file.$(OBJEXT): {$(VPATH)}subst.h
-file.$(OBJEXT): {$(VPATH)}thread.h
-file.$(OBJEXT): {$(VPATH)}util.h
-gc.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-gc.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-gc.$(OBJEXT): $(CCAN_DIR)/list/list.h
-gc.$(OBJEXT): $(CCAN_DIR)/str/str.h
-gc.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-gc.$(OBJEXT): $(top_srcdir)/include/ruby.h
-gc.$(OBJEXT): {$(VPATH)}config.h
-gc.$(OBJEXT): {$(VPATH)}constant.h
-gc.$(OBJEXT): {$(VPATH)}debug.h
-gc.$(OBJEXT): {$(VPATH)}debug_counter.h
-gc.$(OBJEXT): {$(VPATH)}defines.h
-gc.$(OBJEXT): {$(VPATH)}encoding.h
-gc.$(OBJEXT): {$(VPATH)}eval_intern.h
-gc.$(OBJEXT): {$(VPATH)}gc.c
-gc.$(OBJEXT): {$(VPATH)}gc.h
-gc.$(OBJEXT): {$(VPATH)}id.h
-gc.$(OBJEXT): {$(VPATH)}id_table.h
-gc.$(OBJEXT): {$(VPATH)}intern.h
-gc.$(OBJEXT): {$(VPATH)}internal.h
-gc.$(OBJEXT): {$(VPATH)}io.h
-gc.$(OBJEXT): {$(VPATH)}method.h
-gc.$(OBJEXT): {$(VPATH)}missing.h
-gc.$(OBJEXT): {$(VPATH)}node.h
-gc.$(OBJEXT): {$(VPATH)}onigmo.h
-gc.$(OBJEXT): {$(VPATH)}oniguruma.h
-gc.$(OBJEXT): {$(VPATH)}probes.dmyh
-gc.$(OBJEXT): {$(VPATH)}probes.h
-gc.$(OBJEXT): {$(VPATH)}re.h
-gc.$(OBJEXT): {$(VPATH)}regenc.h
-gc.$(OBJEXT): {$(VPATH)}regex.h
-gc.$(OBJEXT): {$(VPATH)}regint.h
-gc.$(OBJEXT): {$(VPATH)}ruby_assert.h
-gc.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-gc.$(OBJEXT): {$(VPATH)}st.h
-gc.$(OBJEXT): {$(VPATH)}subst.h
-gc.$(OBJEXT): {$(VPATH)}thread.h
-gc.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-gc.$(OBJEXT): {$(VPATH)}thread_native.h
-gc.$(OBJEXT): {$(VPATH)}util.h
-gc.$(OBJEXT): {$(VPATH)}vm_core.h
-gc.$(OBJEXT): {$(VPATH)}vm_debug.h
-gc.$(OBJEXT): {$(VPATH)}vm_opts.h
-golf_prelude.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-golf_prelude.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-golf_prelude.$(OBJEXT): $(CCAN_DIR)/list/list.h
-golf_prelude.$(OBJEXT): $(CCAN_DIR)/str/str.h
-golf_prelude.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-golf_prelude.$(OBJEXT): $(hdrdir)/ruby/version.h
-golf_prelude.$(OBJEXT): $(top_srcdir)/include/ruby.h
-golf_prelude.$(OBJEXT): {$(VPATH)}config.h
-golf_prelude.$(OBJEXT): {$(VPATH)}defines.h
-golf_prelude.$(OBJEXT): {$(VPATH)}encoding.h
-golf_prelude.$(OBJEXT): {$(VPATH)}golf_prelude.c
-golf_prelude.$(OBJEXT): {$(VPATH)}id.h
-golf_prelude.$(OBJEXT): {$(VPATH)}intern.h
-golf_prelude.$(OBJEXT): {$(VPATH)}internal.h
-golf_prelude.$(OBJEXT): {$(VPATH)}io.h
-golf_prelude.$(OBJEXT): {$(VPATH)}iseq.h
-golf_prelude.$(OBJEXT): {$(VPATH)}method.h
-golf_prelude.$(OBJEXT): {$(VPATH)}missing.h
-golf_prelude.$(OBJEXT): {$(VPATH)}node.h
-golf_prelude.$(OBJEXT): {$(VPATH)}onigmo.h
-golf_prelude.$(OBJEXT): {$(VPATH)}oniguruma.h
-golf_prelude.$(OBJEXT): {$(VPATH)}ruby_assert.h
-golf_prelude.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-golf_prelude.$(OBJEXT): {$(VPATH)}st.h
-golf_prelude.$(OBJEXT): {$(VPATH)}subst.h
-golf_prelude.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-golf_prelude.$(OBJEXT): {$(VPATH)}thread_native.h
-golf_prelude.$(OBJEXT): {$(VPATH)}vm_core.h
-golf_prelude.$(OBJEXT): {$(VPATH)}vm_debug.h
-golf_prelude.$(OBJEXT): {$(VPATH)}vm_opts.h
-goruby.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-goruby.$(OBJEXT): $(top_srcdir)/include/ruby.h
-goruby.$(OBJEXT): {$(VPATH)}backward.h
-goruby.$(OBJEXT): {$(VPATH)}config.h
-goruby.$(OBJEXT): {$(VPATH)}defines.h
-goruby.$(OBJEXT): {$(VPATH)}goruby.c
-goruby.$(OBJEXT): {$(VPATH)}intern.h
-goruby.$(OBJEXT): {$(VPATH)}main.c
-goruby.$(OBJEXT): {$(VPATH)}missing.h
-goruby.$(OBJEXT): {$(VPATH)}node.h
-goruby.$(OBJEXT): {$(VPATH)}st.h
-goruby.$(OBJEXT): {$(VPATH)}subst.h
-goruby.$(OBJEXT): {$(VPATH)}vm_debug.h
-hash.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-hash.$(OBJEXT): $(top_srcdir)/include/ruby.h
-hash.$(OBJEXT): {$(VPATH)}config.h
-hash.$(OBJEXT): {$(VPATH)}defines.h
-hash.$(OBJEXT): {$(VPATH)}encoding.h
-hash.$(OBJEXT): {$(VPATH)}hash.c
-hash.$(OBJEXT): {$(VPATH)}id.h
-hash.$(OBJEXT): {$(VPATH)}intern.h
-hash.$(OBJEXT): {$(VPATH)}internal.h
-hash.$(OBJEXT): {$(VPATH)}io.h
-hash.$(OBJEXT): {$(VPATH)}missing.h
-hash.$(OBJEXT): {$(VPATH)}onigmo.h
-hash.$(OBJEXT): {$(VPATH)}oniguruma.h
-hash.$(OBJEXT): {$(VPATH)}probes.dmyh
-hash.$(OBJEXT): {$(VPATH)}probes.h
-hash.$(OBJEXT): {$(VPATH)}st.h
-hash.$(OBJEXT): {$(VPATH)}subst.h
-hash.$(OBJEXT): {$(VPATH)}symbol.h
-hash.$(OBJEXT): {$(VPATH)}util.h
-inits.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-inits.$(OBJEXT): $(top_srcdir)/include/ruby.h
-inits.$(OBJEXT): {$(VPATH)}config.h
-inits.$(OBJEXT): {$(VPATH)}defines.h
-inits.$(OBJEXT): {$(VPATH)}encoding.h
-inits.$(OBJEXT): {$(VPATH)}inits.c
-inits.$(OBJEXT): {$(VPATH)}intern.h
-inits.$(OBJEXT): {$(VPATH)}internal.h
-inits.$(OBJEXT): {$(VPATH)}io.h
-inits.$(OBJEXT): {$(VPATH)}missing.h
-inits.$(OBJEXT): {$(VPATH)}onigmo.h
-inits.$(OBJEXT): {$(VPATH)}oniguruma.h
-inits.$(OBJEXT): {$(VPATH)}st.h
-inits.$(OBJEXT): {$(VPATH)}subst.h
-io.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-io.$(OBJEXT): $(top_srcdir)/include/ruby.h
-io.$(OBJEXT): {$(VPATH)}config.h
-io.$(OBJEXT): {$(VPATH)}defines.h
-io.$(OBJEXT): {$(VPATH)}dln.h
-io.$(OBJEXT): {$(VPATH)}encindex.h
-io.$(OBJEXT): {$(VPATH)}encoding.h
-io.$(OBJEXT): {$(VPATH)}id.h
-io.$(OBJEXT): {$(VPATH)}intern.h
-io.$(OBJEXT): {$(VPATH)}internal.h
-io.$(OBJEXT): {$(VPATH)}io.c
-io.$(OBJEXT): {$(VPATH)}io.h
-io.$(OBJEXT): {$(VPATH)}missing.h
-io.$(OBJEXT): {$(VPATH)}onigmo.h
-io.$(OBJEXT): {$(VPATH)}oniguruma.h
-io.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-io.$(OBJEXT): {$(VPATH)}st.h
-io.$(OBJEXT): {$(VPATH)}subst.h
-io.$(OBJEXT): {$(VPATH)}thread.h
-io.$(OBJEXT): {$(VPATH)}util.h
-iseq.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-iseq.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-iseq.$(OBJEXT): $(CCAN_DIR)/list/list.h
-iseq.$(OBJEXT): $(CCAN_DIR)/str/str.h
-iseq.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-iseq.$(OBJEXT): $(hdrdir)/ruby/version.h
-iseq.$(OBJEXT): $(top_srcdir)/include/ruby.h
-iseq.$(OBJEXT): {$(VPATH)}config.h
-iseq.$(OBJEXT): {$(VPATH)}defines.h
-iseq.$(OBJEXT): {$(VPATH)}encoding.h
-iseq.$(OBJEXT): {$(VPATH)}eval_intern.h
-iseq.$(OBJEXT): {$(VPATH)}gc.h
-iseq.$(OBJEXT): {$(VPATH)}id.h
-iseq.$(OBJEXT): {$(VPATH)}id_table.h
-iseq.$(OBJEXT): {$(VPATH)}insns.inc
-iseq.$(OBJEXT): {$(VPATH)}insns_info.inc
-iseq.$(OBJEXT): {$(VPATH)}intern.h
-iseq.$(OBJEXT): {$(VPATH)}internal.h
-iseq.$(OBJEXT): {$(VPATH)}io.h
-iseq.$(OBJEXT): {$(VPATH)}iseq.c
-iseq.$(OBJEXT): {$(VPATH)}iseq.h
-iseq.$(OBJEXT): {$(VPATH)}method.h
-iseq.$(OBJEXT): {$(VPATH)}missing.h
-iseq.$(OBJEXT): {$(VPATH)}node.h
-iseq.$(OBJEXT): {$(VPATH)}node_name.inc
-iseq.$(OBJEXT): {$(VPATH)}onigmo.h
-iseq.$(OBJEXT): {$(VPATH)}oniguruma.h
-iseq.$(OBJEXT): {$(VPATH)}ruby_assert.h
-iseq.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-iseq.$(OBJEXT): {$(VPATH)}st.h
-iseq.$(OBJEXT): {$(VPATH)}subst.h
-iseq.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-iseq.$(OBJEXT): {$(VPATH)}thread_native.h
-iseq.$(OBJEXT): {$(VPATH)}util.h
-iseq.$(OBJEXT): {$(VPATH)}vm_core.h
-iseq.$(OBJEXT): {$(VPATH)}vm_debug.h
-iseq.$(OBJEXT): {$(VPATH)}vm_opts.h
-load.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-load.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-load.$(OBJEXT): $(CCAN_DIR)/list/list.h
-load.$(OBJEXT): $(CCAN_DIR)/str/str.h
-load.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-load.$(OBJEXT): $(top_srcdir)/include/ruby.h
-load.$(OBJEXT): {$(VPATH)}config.h
-load.$(OBJEXT): {$(VPATH)}defines.h
-load.$(OBJEXT): {$(VPATH)}dln.h
-load.$(OBJEXT): {$(VPATH)}encoding.h
-load.$(OBJEXT): {$(VPATH)}eval_intern.h
-load.$(OBJEXT): {$(VPATH)}id.h
-load.$(OBJEXT): {$(VPATH)}intern.h
-load.$(OBJEXT): {$(VPATH)}internal.h
-load.$(OBJEXT): {$(VPATH)}io.h
-load.$(OBJEXT): {$(VPATH)}load.c
-load.$(OBJEXT): {$(VPATH)}method.h
-load.$(OBJEXT): {$(VPATH)}missing.h
-load.$(OBJEXT): {$(VPATH)}node.h
-load.$(OBJEXT): {$(VPATH)}onigmo.h
-load.$(OBJEXT): {$(VPATH)}oniguruma.h
-load.$(OBJEXT): {$(VPATH)}probes.dmyh
-load.$(OBJEXT): {$(VPATH)}probes.h
-load.$(OBJEXT): {$(VPATH)}ruby_assert.h
-load.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-load.$(OBJEXT): {$(VPATH)}st.h
-load.$(OBJEXT): {$(VPATH)}subst.h
-load.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-load.$(OBJEXT): {$(VPATH)}thread_native.h
-load.$(OBJEXT): {$(VPATH)}util.h
-load.$(OBJEXT): {$(VPATH)}vm_core.h
-load.$(OBJEXT): {$(VPATH)}vm_debug.h
-load.$(OBJEXT): {$(VPATH)}vm_opts.h
-loadpath.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-loadpath.$(OBJEXT): $(hdrdir)/ruby/version.h
-loadpath.$(OBJEXT): $(top_srcdir)/version.h
-loadpath.$(OBJEXT): {$(VPATH)}config.h
-loadpath.$(OBJEXT): {$(VPATH)}defines.h
-loadpath.$(OBJEXT): {$(VPATH)}intern.h
-loadpath.$(OBJEXT): {$(VPATH)}loadpath.c
-loadpath.$(OBJEXT): {$(VPATH)}missing.h
-loadpath.$(OBJEXT): {$(VPATH)}st.h
-loadpath.$(OBJEXT): {$(VPATH)}subst.h
-loadpath.$(OBJEXT): {$(VPATH)}verconf.h
-localeinit.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-localeinit.$(OBJEXT): $(top_srcdir)/include/ruby.h
-localeinit.$(OBJEXT): {$(VPATH)}config.h
-localeinit.$(OBJEXT): {$(VPATH)}defines.h
-localeinit.$(OBJEXT): {$(VPATH)}encindex.h
-localeinit.$(OBJEXT): {$(VPATH)}encoding.h
-localeinit.$(OBJEXT): {$(VPATH)}intern.h
-localeinit.$(OBJEXT): {$(VPATH)}internal.h
-localeinit.$(OBJEXT): {$(VPATH)}io.h
-localeinit.$(OBJEXT): {$(VPATH)}localeinit.c
-localeinit.$(OBJEXT): {$(VPATH)}missing.h
-localeinit.$(OBJEXT): {$(VPATH)}onigmo.h
-localeinit.$(OBJEXT): {$(VPATH)}oniguruma.h
-localeinit.$(OBJEXT): {$(VPATH)}st.h
-localeinit.$(OBJEXT): {$(VPATH)}subst.h
-main.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-main.$(OBJEXT): $(top_srcdir)/include/ruby.h
-main.$(OBJEXT): {$(VPATH)}backward.h
-main.$(OBJEXT): {$(VPATH)}config.h
-main.$(OBJEXT): {$(VPATH)}defines.h
-main.$(OBJEXT): {$(VPATH)}intern.h
-main.$(OBJEXT): {$(VPATH)}main.c
-main.$(OBJEXT): {$(VPATH)}missing.h
-main.$(OBJEXT): {$(VPATH)}node.h
-main.$(OBJEXT): {$(VPATH)}st.h
-main.$(OBJEXT): {$(VPATH)}subst.h
-main.$(OBJEXT): {$(VPATH)}vm_debug.h
-marshal.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-marshal.$(OBJEXT): $(top_srcdir)/include/ruby.h
-marshal.$(OBJEXT): {$(VPATH)}config.h
-marshal.$(OBJEXT): {$(VPATH)}defines.h
-marshal.$(OBJEXT): {$(VPATH)}encindex.h
-marshal.$(OBJEXT): {$(VPATH)}encoding.h
-marshal.$(OBJEXT): {$(VPATH)}id_table.h
-marshal.$(OBJEXT): {$(VPATH)}intern.h
-marshal.$(OBJEXT): {$(VPATH)}internal.h
-marshal.$(OBJEXT): {$(VPATH)}io.h
-marshal.$(OBJEXT): {$(VPATH)}marshal.c
-marshal.$(OBJEXT): {$(VPATH)}missing.h
-marshal.$(OBJEXT): {$(VPATH)}onigmo.h
-marshal.$(OBJEXT): {$(VPATH)}oniguruma.h
-marshal.$(OBJEXT): {$(VPATH)}st.h
-marshal.$(OBJEXT): {$(VPATH)}subst.h
-marshal.$(OBJEXT): {$(VPATH)}util.h
-math.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-math.$(OBJEXT): $(top_srcdir)/include/ruby.h
-math.$(OBJEXT): {$(VPATH)}config.h
-math.$(OBJEXT): {$(VPATH)}defines.h
-math.$(OBJEXT): {$(VPATH)}encoding.h
-math.$(OBJEXT): {$(VPATH)}intern.h
-math.$(OBJEXT): {$(VPATH)}internal.h
-math.$(OBJEXT): {$(VPATH)}io.h
-math.$(OBJEXT): {$(VPATH)}math.c
-math.$(OBJEXT): {$(VPATH)}missing.h
-math.$(OBJEXT): {$(VPATH)}onigmo.h
-math.$(OBJEXT): {$(VPATH)}oniguruma.h
-math.$(OBJEXT): {$(VPATH)}st.h
-math.$(OBJEXT): {$(VPATH)}subst.h
-miniinit.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-miniinit.$(OBJEXT): {$(VPATH)}config.h
-miniinit.$(OBJEXT): {$(VPATH)}defines.h
-miniinit.$(OBJEXT): {$(VPATH)}encoding.h
-miniinit.$(OBJEXT): {$(VPATH)}intern.h
-miniinit.$(OBJEXT): {$(VPATH)}miniinit.c
-miniinit.$(OBJEXT): {$(VPATH)}missing.h
-miniinit.$(OBJEXT): {$(VPATH)}onigmo.h
-miniinit.$(OBJEXT): {$(VPATH)}oniguruma.h
-miniinit.$(OBJEXT): {$(VPATH)}st.h
-miniinit.$(OBJEXT): {$(VPATH)}subst.h
-miniprelude.$(OBJEXT): $(hdrdir)/ruby/version.h
-miniprelude.$(OBJEXT): {$(VPATH)}iseq.h
-miniprelude.$(OBJEXT): {$(VPATH)}miniprelude.c
-node.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-node.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-node.$(OBJEXT): $(CCAN_DIR)/list/list.h
-node.$(OBJEXT): $(CCAN_DIR)/str/str.h
-node.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-node.$(OBJEXT): $(top_srcdir)/include/ruby.h
-node.$(OBJEXT): {$(VPATH)}config.h
-node.$(OBJEXT): {$(VPATH)}defines.h
-node.$(OBJEXT): {$(VPATH)}encoding.h
-node.$(OBJEXT): {$(VPATH)}id.h
-node.$(OBJEXT): {$(VPATH)}intern.h
-node.$(OBJEXT): {$(VPATH)}internal.h
-node.$(OBJEXT): {$(VPATH)}io.h
-node.$(OBJEXT): {$(VPATH)}method.h
-node.$(OBJEXT): {$(VPATH)}missing.h
-node.$(OBJEXT): {$(VPATH)}node.c
-node.$(OBJEXT): {$(VPATH)}node.h
-node.$(OBJEXT): {$(VPATH)}onigmo.h
-node.$(OBJEXT): {$(VPATH)}oniguruma.h
-node.$(OBJEXT): {$(VPATH)}ruby_assert.h
-node.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-node.$(OBJEXT): {$(VPATH)}st.h
-node.$(OBJEXT): {$(VPATH)}subst.h
-node.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-node.$(OBJEXT): {$(VPATH)}thread_native.h
-node.$(OBJEXT): {$(VPATH)}vm_core.h
-node.$(OBJEXT): {$(VPATH)}vm_debug.h
-node.$(OBJEXT): {$(VPATH)}vm_opts.h
-numeric.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-numeric.$(OBJEXT): $(top_srcdir)/include/ruby.h
-numeric.$(OBJEXT): {$(VPATH)}config.h
-numeric.$(OBJEXT): {$(VPATH)}defines.h
-numeric.$(OBJEXT): {$(VPATH)}encoding.h
-numeric.$(OBJEXT): {$(VPATH)}id.h
-numeric.$(OBJEXT): {$(VPATH)}intern.h
-numeric.$(OBJEXT): {$(VPATH)}internal.h
-numeric.$(OBJEXT): {$(VPATH)}io.h
-numeric.$(OBJEXT): {$(VPATH)}missing.h
-numeric.$(OBJEXT): {$(VPATH)}numeric.c
-numeric.$(OBJEXT): {$(VPATH)}onigmo.h
-numeric.$(OBJEXT): {$(VPATH)}oniguruma.h
-numeric.$(OBJEXT): {$(VPATH)}st.h
-numeric.$(OBJEXT): {$(VPATH)}subst.h
-numeric.$(OBJEXT): {$(VPATH)}util.h
-object.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-object.$(OBJEXT): $(top_srcdir)/include/ruby.h
-object.$(OBJEXT): {$(VPATH)}config.h
-object.$(OBJEXT): {$(VPATH)}constant.h
-object.$(OBJEXT): {$(VPATH)}defines.h
-object.$(OBJEXT): {$(VPATH)}encoding.h
-object.$(OBJEXT): {$(VPATH)}id.h
-object.$(OBJEXT): {$(VPATH)}intern.h
-object.$(OBJEXT): {$(VPATH)}internal.h
-object.$(OBJEXT): {$(VPATH)}io.h
-object.$(OBJEXT): {$(VPATH)}missing.h
-object.$(OBJEXT): {$(VPATH)}object.c
-object.$(OBJEXT): {$(VPATH)}onigmo.h
-object.$(OBJEXT): {$(VPATH)}oniguruma.h
-object.$(OBJEXT): {$(VPATH)}probes.dmyh
-object.$(OBJEXT): {$(VPATH)}probes.h
-object.$(OBJEXT): {$(VPATH)}st.h
-object.$(OBJEXT): {$(VPATH)}subst.h
-object.$(OBJEXT): {$(VPATH)}util.h
-pack.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-pack.$(OBJEXT): $(top_srcdir)/include/ruby.h
-pack.$(OBJEXT): {$(VPATH)}config.h
-pack.$(OBJEXT): {$(VPATH)}defines.h
-pack.$(OBJEXT): {$(VPATH)}encoding.h
-pack.$(OBJEXT): {$(VPATH)}intern.h
-pack.$(OBJEXT): {$(VPATH)}internal.h
-pack.$(OBJEXT): {$(VPATH)}io.h
-pack.$(OBJEXT): {$(VPATH)}missing.h
-pack.$(OBJEXT): {$(VPATH)}onigmo.h
-pack.$(OBJEXT): {$(VPATH)}oniguruma.h
-pack.$(OBJEXT): {$(VPATH)}pack.c
-pack.$(OBJEXT): {$(VPATH)}st.h
-pack.$(OBJEXT): {$(VPATH)}subst.h
-parse.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-parse.$(OBJEXT): $(top_srcdir)/include/ruby.h
-parse.$(OBJEXT): {$(VPATH)}config.h
-parse.$(OBJEXT): {$(VPATH)}defines.h
-parse.$(OBJEXT): {$(VPATH)}defs/keywords
-parse.$(OBJEXT): {$(VPATH)}encoding.h
-parse.$(OBJEXT): {$(VPATH)}id.h
-parse.$(OBJEXT): {$(VPATH)}intern.h
-parse.$(OBJEXT): {$(VPATH)}internal.h
-parse.$(OBJEXT): {$(VPATH)}io.h
-parse.$(OBJEXT): {$(VPATH)}lex.c
-parse.$(OBJEXT): {$(VPATH)}missing.h
-parse.$(OBJEXT): {$(VPATH)}node.h
-parse.$(OBJEXT): {$(VPATH)}onigmo.h
-parse.$(OBJEXT): {$(VPATH)}oniguruma.h
-parse.$(OBJEXT): {$(VPATH)}parse.c
-parse.$(OBJEXT): {$(VPATH)}parse.h
-parse.$(OBJEXT): {$(VPATH)}parse.y
-parse.$(OBJEXT): {$(VPATH)}probes.dmyh
-parse.$(OBJEXT): {$(VPATH)}probes.h
-parse.$(OBJEXT): {$(VPATH)}regenc.h
-parse.$(OBJEXT): {$(VPATH)}regex.h
-parse.$(OBJEXT): {$(VPATH)}st.h
-parse.$(OBJEXT): {$(VPATH)}subst.h
-parse.$(OBJEXT): {$(VPATH)}symbol.h
-parse.$(OBJEXT): {$(VPATH)}util.h
-prelude.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-prelude.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-prelude.$(OBJEXT): $(CCAN_DIR)/list/list.h
-prelude.$(OBJEXT): $(CCAN_DIR)/str/str.h
-prelude.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-prelude.$(OBJEXT): $(hdrdir)/ruby/version.h
-prelude.$(OBJEXT): $(top_srcdir)/include/ruby.h
-prelude.$(OBJEXT): {$(VPATH)}config.h
-prelude.$(OBJEXT): {$(VPATH)}defines.h
-prelude.$(OBJEXT): {$(VPATH)}encoding.h
-prelude.$(OBJEXT): {$(VPATH)}id.h
-prelude.$(OBJEXT): {$(VPATH)}intern.h
-prelude.$(OBJEXT): {$(VPATH)}internal.h
-prelude.$(OBJEXT): {$(VPATH)}io.h
-prelude.$(OBJEXT): {$(VPATH)}iseq.h
-prelude.$(OBJEXT): {$(VPATH)}method.h
-prelude.$(OBJEXT): {$(VPATH)}missing.h
-prelude.$(OBJEXT): {$(VPATH)}node.h
-prelude.$(OBJEXT): {$(VPATH)}onigmo.h
-prelude.$(OBJEXT): {$(VPATH)}oniguruma.h
-prelude.$(OBJEXT): {$(VPATH)}prelude.c
-prelude.$(OBJEXT): {$(VPATH)}ruby_assert.h
-prelude.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-prelude.$(OBJEXT): {$(VPATH)}st.h
-prelude.$(OBJEXT): {$(VPATH)}subst.h
-prelude.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-prelude.$(OBJEXT): {$(VPATH)}thread_native.h
-prelude.$(OBJEXT): {$(VPATH)}vm_core.h
-prelude.$(OBJEXT): {$(VPATH)}vm_debug.h
-prelude.$(OBJEXT): {$(VPATH)}vm_opts.h
-proc.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-proc.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-proc.$(OBJEXT): $(CCAN_DIR)/list/list.h
-proc.$(OBJEXT): $(CCAN_DIR)/str/str.h
-proc.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-proc.$(OBJEXT): $(hdrdir)/ruby/version.h
-proc.$(OBJEXT): $(top_srcdir)/include/ruby.h
-proc.$(OBJEXT): {$(VPATH)}config.h
-proc.$(OBJEXT): {$(VPATH)}defines.h
-proc.$(OBJEXT): {$(VPATH)}encoding.h
-proc.$(OBJEXT): {$(VPATH)}eval_intern.h
-proc.$(OBJEXT): {$(VPATH)}gc.h
-proc.$(OBJEXT): {$(VPATH)}id.h
-proc.$(OBJEXT): {$(VPATH)}intern.h
-proc.$(OBJEXT): {$(VPATH)}internal.h
-proc.$(OBJEXT): {$(VPATH)}io.h
-proc.$(OBJEXT): {$(VPATH)}iseq.h
-proc.$(OBJEXT): {$(VPATH)}method.h
-proc.$(OBJEXT): {$(VPATH)}missing.h
-proc.$(OBJEXT): {$(VPATH)}node.h
-proc.$(OBJEXT): {$(VPATH)}onigmo.h
-proc.$(OBJEXT): {$(VPATH)}oniguruma.h
-proc.$(OBJEXT): {$(VPATH)}proc.c
-proc.$(OBJEXT): {$(VPATH)}ruby_assert.h
-proc.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-proc.$(OBJEXT): {$(VPATH)}st.h
-proc.$(OBJEXT): {$(VPATH)}subst.h
-proc.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-proc.$(OBJEXT): {$(VPATH)}thread_native.h
-proc.$(OBJEXT): {$(VPATH)}vm_core.h
-proc.$(OBJEXT): {$(VPATH)}vm_debug.h
-proc.$(OBJEXT): {$(VPATH)}vm_opts.h
-process.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-process.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-process.$(OBJEXT): $(CCAN_DIR)/list/list.h
-process.$(OBJEXT): $(CCAN_DIR)/str/str.h
-process.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-process.$(OBJEXT): $(top_srcdir)/include/ruby.h
-process.$(OBJEXT): {$(VPATH)}config.h
-process.$(OBJEXT): {$(VPATH)}defines.h
-process.$(OBJEXT): {$(VPATH)}dln.h
-process.$(OBJEXT): {$(VPATH)}encoding.h
-process.$(OBJEXT): {$(VPATH)}id.h
-process.$(OBJEXT): {$(VPATH)}intern.h
-process.$(OBJEXT): {$(VPATH)}internal.h
-process.$(OBJEXT): {$(VPATH)}io.h
-process.$(OBJEXT): {$(VPATH)}method.h
-process.$(OBJEXT): {$(VPATH)}missing.h
-process.$(OBJEXT): {$(VPATH)}node.h
-process.$(OBJEXT): {$(VPATH)}onigmo.h
-process.$(OBJEXT): {$(VPATH)}oniguruma.h
-process.$(OBJEXT): {$(VPATH)}process.c
-process.$(OBJEXT): {$(VPATH)}ruby_assert.h
-process.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-process.$(OBJEXT): {$(VPATH)}st.h
-process.$(OBJEXT): {$(VPATH)}subst.h
-process.$(OBJEXT): {$(VPATH)}thread.h
-process.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-process.$(OBJEXT): {$(VPATH)}thread_native.h
-process.$(OBJEXT): {$(VPATH)}util.h
-process.$(OBJEXT): {$(VPATH)}vm_core.h
-process.$(OBJEXT): {$(VPATH)}vm_debug.h
-process.$(OBJEXT): {$(VPATH)}vm_opts.h
-random.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-random.$(OBJEXT): $(top_srcdir)/include/ruby.h
-random.$(OBJEXT): {$(VPATH)}config.h
-random.$(OBJEXT): {$(VPATH)}defines.h
-random.$(OBJEXT): {$(VPATH)}encoding.h
-random.$(OBJEXT): {$(VPATH)}intern.h
-random.$(OBJEXT): {$(VPATH)}internal.h
-random.$(OBJEXT): {$(VPATH)}io.h
-random.$(OBJEXT): {$(VPATH)}missing.h
-random.$(OBJEXT): {$(VPATH)}onigmo.h
-random.$(OBJEXT): {$(VPATH)}oniguruma.h
-random.$(OBJEXT): {$(VPATH)}random.c
-random.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-random.$(OBJEXT): {$(VPATH)}siphash.c
-random.$(OBJEXT): {$(VPATH)}siphash.h
-random.$(OBJEXT): {$(VPATH)}st.h
-random.$(OBJEXT): {$(VPATH)}subst.h
-range.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-range.$(OBJEXT): $(top_srcdir)/include/ruby.h
-range.$(OBJEXT): {$(VPATH)}config.h
-range.$(OBJEXT): {$(VPATH)}defines.h
-range.$(OBJEXT): {$(VPATH)}encoding.h
-range.$(OBJEXT): {$(VPATH)}id.h
-range.$(OBJEXT): {$(VPATH)}intern.h
-range.$(OBJEXT): {$(VPATH)}internal.h
-range.$(OBJEXT): {$(VPATH)}io.h
-range.$(OBJEXT): {$(VPATH)}missing.h
-range.$(OBJEXT): {$(VPATH)}onigmo.h
-range.$(OBJEXT): {$(VPATH)}oniguruma.h
-range.$(OBJEXT): {$(VPATH)}range.c
-range.$(OBJEXT): {$(VPATH)}st.h
-range.$(OBJEXT): {$(VPATH)}subst.h
-rational.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-rational.$(OBJEXT): $(top_srcdir)/include/ruby.h
-rational.$(OBJEXT): {$(VPATH)}config.h
-rational.$(OBJEXT): {$(VPATH)}defines.h
-rational.$(OBJEXT): {$(VPATH)}encoding.h
-rational.$(OBJEXT): {$(VPATH)}id.h
-rational.$(OBJEXT): {$(VPATH)}intern.h
-rational.$(OBJEXT): {$(VPATH)}internal.h
-rational.$(OBJEXT): {$(VPATH)}io.h
-rational.$(OBJEXT): {$(VPATH)}missing.h
-rational.$(OBJEXT): {$(VPATH)}onigmo.h
-rational.$(OBJEXT): {$(VPATH)}oniguruma.h
-rational.$(OBJEXT): {$(VPATH)}rational.c
-rational.$(OBJEXT): {$(VPATH)}ruby_assert.h
-rational.$(OBJEXT): {$(VPATH)}st.h
-rational.$(OBJEXT): {$(VPATH)}subst.h
-re.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-re.$(OBJEXT): $(top_srcdir)/include/ruby.h
-re.$(OBJEXT): {$(VPATH)}config.h
-re.$(OBJEXT): {$(VPATH)}defines.h
-re.$(OBJEXT): {$(VPATH)}encindex.h
-re.$(OBJEXT): {$(VPATH)}encoding.h
-re.$(OBJEXT): {$(VPATH)}intern.h
-re.$(OBJEXT): {$(VPATH)}internal.h
-re.$(OBJEXT): {$(VPATH)}io.h
-re.$(OBJEXT): {$(VPATH)}missing.h
-re.$(OBJEXT): {$(VPATH)}onigmo.h
-re.$(OBJEXT): {$(VPATH)}oniguruma.h
-re.$(OBJEXT): {$(VPATH)}re.c
-re.$(OBJEXT): {$(VPATH)}re.h
-re.$(OBJEXT): {$(VPATH)}regenc.h
-re.$(OBJEXT): {$(VPATH)}regex.h
-re.$(OBJEXT): {$(VPATH)}regint.h
-re.$(OBJEXT): {$(VPATH)}st.h
-re.$(OBJEXT): {$(VPATH)}subst.h
-re.$(OBJEXT): {$(VPATH)}util.h
-regcomp.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-regcomp.$(OBJEXT): {$(VPATH)}config.h
-regcomp.$(OBJEXT): {$(VPATH)}defines.h
-regcomp.$(OBJEXT): {$(VPATH)}intern.h
-regcomp.$(OBJEXT): {$(VPATH)}missing.h
-regcomp.$(OBJEXT): {$(VPATH)}onigmo.h
-regcomp.$(OBJEXT): {$(VPATH)}oniguruma.h
-regcomp.$(OBJEXT): {$(VPATH)}regcomp.c
-regcomp.$(OBJEXT): {$(VPATH)}regenc.h
-regcomp.$(OBJEXT): {$(VPATH)}regint.h
-regcomp.$(OBJEXT): {$(VPATH)}regparse.h
-regcomp.$(OBJEXT): {$(VPATH)}st.h
-regcomp.$(OBJEXT): {$(VPATH)}subst.h
-regenc.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-regenc.$(OBJEXT): {$(VPATH)}config.h
-regenc.$(OBJEXT): {$(VPATH)}defines.h
-regenc.$(OBJEXT): {$(VPATH)}intern.h
-regenc.$(OBJEXT): {$(VPATH)}missing.h
-regenc.$(OBJEXT): {$(VPATH)}onigmo.h
-regenc.$(OBJEXT): {$(VPATH)}oniguruma.h
-regenc.$(OBJEXT): {$(VPATH)}regenc.c
-regenc.$(OBJEXT): {$(VPATH)}regenc.h
-regenc.$(OBJEXT): {$(VPATH)}regint.h
-regenc.$(OBJEXT): {$(VPATH)}st.h
-regenc.$(OBJEXT): {$(VPATH)}subst.h
-regerror.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-regerror.$(OBJEXT): {$(VPATH)}config.h
-regerror.$(OBJEXT): {$(VPATH)}defines.h
-regerror.$(OBJEXT): {$(VPATH)}intern.h
-regerror.$(OBJEXT): {$(VPATH)}missing.h
-regerror.$(OBJEXT): {$(VPATH)}onigmo.h
-regerror.$(OBJEXT): {$(VPATH)}oniguruma.h
-regerror.$(OBJEXT): {$(VPATH)}regenc.h
-regerror.$(OBJEXT): {$(VPATH)}regerror.c
-regerror.$(OBJEXT): {$(VPATH)}regint.h
-regerror.$(OBJEXT): {$(VPATH)}st.h
-regerror.$(OBJEXT): {$(VPATH)}subst.h
-regexec.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-regexec.$(OBJEXT): {$(VPATH)}config.h
-regexec.$(OBJEXT): {$(VPATH)}defines.h
-regexec.$(OBJEXT): {$(VPATH)}intern.h
-regexec.$(OBJEXT): {$(VPATH)}missing.h
-regexec.$(OBJEXT): {$(VPATH)}onigmo.h
-regexec.$(OBJEXT): {$(VPATH)}oniguruma.h
-regexec.$(OBJEXT): {$(VPATH)}regenc.h
-regexec.$(OBJEXT): {$(VPATH)}regexec.c
-regexec.$(OBJEXT): {$(VPATH)}regint.h
-regexec.$(OBJEXT): {$(VPATH)}st.h
-regexec.$(OBJEXT): {$(VPATH)}subst.h
-regparse.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-regparse.$(OBJEXT): {$(VPATH)}config.h
-regparse.$(OBJEXT): {$(VPATH)}defines.h
-regparse.$(OBJEXT): {$(VPATH)}intern.h
-regparse.$(OBJEXT): {$(VPATH)}missing.h
-regparse.$(OBJEXT): {$(VPATH)}onigmo.h
-regparse.$(OBJEXT): {$(VPATH)}oniguruma.h
-regparse.$(OBJEXT): {$(VPATH)}regenc.h
-regparse.$(OBJEXT): {$(VPATH)}regint.h
-regparse.$(OBJEXT): {$(VPATH)}regparse.c
-regparse.$(OBJEXT): {$(VPATH)}regparse.h
-regparse.$(OBJEXT): {$(VPATH)}st.h
-regparse.$(OBJEXT): {$(VPATH)}subst.h
-regsyntax.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-regsyntax.$(OBJEXT): {$(VPATH)}config.h
-regsyntax.$(OBJEXT): {$(VPATH)}defines.h
-regsyntax.$(OBJEXT): {$(VPATH)}intern.h
-regsyntax.$(OBJEXT): {$(VPATH)}missing.h
-regsyntax.$(OBJEXT): {$(VPATH)}onigmo.h
-regsyntax.$(OBJEXT): {$(VPATH)}oniguruma.h
-regsyntax.$(OBJEXT): {$(VPATH)}regenc.h
-regsyntax.$(OBJEXT): {$(VPATH)}regint.h
-regsyntax.$(OBJEXT): {$(VPATH)}regsyntax.c
-regsyntax.$(OBJEXT): {$(VPATH)}st.h
-regsyntax.$(OBJEXT): {$(VPATH)}subst.h
-ruby-runner.$(OBJEXT): {$(VPATH)}ruby-runner.c
-ruby-runner.$(OBJEXT): {$(VPATH)}ruby-runner.h
-ruby.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-ruby.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-ruby.$(OBJEXT): $(CCAN_DIR)/list/list.h
-ruby.$(OBJEXT): $(CCAN_DIR)/str/str.h
-ruby.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-ruby.$(OBJEXT): $(top_srcdir)/include/ruby.h
-ruby.$(OBJEXT): {$(VPATH)}config.h
-ruby.$(OBJEXT): {$(VPATH)}defines.h
-ruby.$(OBJEXT): {$(VPATH)}dln.h
-ruby.$(OBJEXT): {$(VPATH)}encoding.h
-ruby.$(OBJEXT): {$(VPATH)}eval_intern.h
-ruby.$(OBJEXT): {$(VPATH)}id.h
-ruby.$(OBJEXT): {$(VPATH)}intern.h
-ruby.$(OBJEXT): {$(VPATH)}internal.h
-ruby.$(OBJEXT): {$(VPATH)}io.h
-ruby.$(OBJEXT): {$(VPATH)}method.h
-ruby.$(OBJEXT): {$(VPATH)}missing.h
-ruby.$(OBJEXT): {$(VPATH)}node.h
-ruby.$(OBJEXT): {$(VPATH)}onigmo.h
-ruby.$(OBJEXT): {$(VPATH)}oniguruma.h
-ruby.$(OBJEXT): {$(VPATH)}ruby.c
-ruby.$(OBJEXT): {$(VPATH)}ruby_assert.h
-ruby.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-ruby.$(OBJEXT): {$(VPATH)}st.h
-ruby.$(OBJEXT): {$(VPATH)}subst.h
-ruby.$(OBJEXT): {$(VPATH)}thread.h
-ruby.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-ruby.$(OBJEXT): {$(VPATH)}thread_native.h
-ruby.$(OBJEXT): {$(VPATH)}util.h
-ruby.$(OBJEXT): {$(VPATH)}vm_core.h
-ruby.$(OBJEXT): {$(VPATH)}vm_debug.h
-ruby.$(OBJEXT): {$(VPATH)}vm_opts.h
-safe.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-safe.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-safe.$(OBJEXT): $(CCAN_DIR)/list/list.h
-safe.$(OBJEXT): $(CCAN_DIR)/str/str.h
-safe.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-safe.$(OBJEXT): $(top_srcdir)/include/ruby.h
-safe.$(OBJEXT): {$(VPATH)}config.h
-safe.$(OBJEXT): {$(VPATH)}defines.h
-safe.$(OBJEXT): {$(VPATH)}encoding.h
-safe.$(OBJEXT): {$(VPATH)}id.h
-safe.$(OBJEXT): {$(VPATH)}intern.h
-safe.$(OBJEXT): {$(VPATH)}internal.h
-safe.$(OBJEXT): {$(VPATH)}io.h
-safe.$(OBJEXT): {$(VPATH)}method.h
-safe.$(OBJEXT): {$(VPATH)}missing.h
-safe.$(OBJEXT): {$(VPATH)}node.h
-safe.$(OBJEXT): {$(VPATH)}onigmo.h
-safe.$(OBJEXT): {$(VPATH)}oniguruma.h
-safe.$(OBJEXT): {$(VPATH)}ruby_assert.h
-safe.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-safe.$(OBJEXT): {$(VPATH)}safe.c
-safe.$(OBJEXT): {$(VPATH)}st.h
-safe.$(OBJEXT): {$(VPATH)}subst.h
-safe.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-safe.$(OBJEXT): {$(VPATH)}thread_native.h
-safe.$(OBJEXT): {$(VPATH)}vm_core.h
-safe.$(OBJEXT): {$(VPATH)}vm_debug.h
-safe.$(OBJEXT): {$(VPATH)}vm_opts.h
-setproctitle.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-setproctitle.$(OBJEXT): $(top_srcdir)/include/ruby.h
-setproctitle.$(OBJEXT): {$(VPATH)}config.h
-setproctitle.$(OBJEXT): {$(VPATH)}defines.h
-setproctitle.$(OBJEXT): {$(VPATH)}intern.h
-setproctitle.$(OBJEXT): {$(VPATH)}missing.h
-setproctitle.$(OBJEXT): {$(VPATH)}setproctitle.c
-setproctitle.$(OBJEXT): {$(VPATH)}st.h
-setproctitle.$(OBJEXT): {$(VPATH)}subst.h
-setproctitle.$(OBJEXT): {$(VPATH)}util.h
-signal.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-signal.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-signal.$(OBJEXT): $(CCAN_DIR)/list/list.h
-signal.$(OBJEXT): $(CCAN_DIR)/str/str.h
-signal.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-signal.$(OBJEXT): $(top_srcdir)/include/ruby.h
-signal.$(OBJEXT): {$(VPATH)}config.h
-signal.$(OBJEXT): {$(VPATH)}defines.h
-signal.$(OBJEXT): {$(VPATH)}encoding.h
-signal.$(OBJEXT): {$(VPATH)}eval_intern.h
-signal.$(OBJEXT): {$(VPATH)}id.h
-signal.$(OBJEXT): {$(VPATH)}intern.h
-signal.$(OBJEXT): {$(VPATH)}internal.h
-signal.$(OBJEXT): {$(VPATH)}io.h
-signal.$(OBJEXT): {$(VPATH)}method.h
-signal.$(OBJEXT): {$(VPATH)}missing.h
-signal.$(OBJEXT): {$(VPATH)}node.h
-signal.$(OBJEXT): {$(VPATH)}onigmo.h
-signal.$(OBJEXT): {$(VPATH)}oniguruma.h
-signal.$(OBJEXT): {$(VPATH)}ruby_assert.h
-signal.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-signal.$(OBJEXT): {$(VPATH)}signal.c
-signal.$(OBJEXT): {$(VPATH)}st.h
-signal.$(OBJEXT): {$(VPATH)}subst.h
-signal.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-signal.$(OBJEXT): {$(VPATH)}thread_native.h
-signal.$(OBJEXT): {$(VPATH)}vm_core.h
-signal.$(OBJEXT): {$(VPATH)}vm_debug.h
-signal.$(OBJEXT): {$(VPATH)}vm_opts.h
-sprintf.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-sprintf.$(OBJEXT): $(top_srcdir)/include/ruby.h
-sprintf.$(OBJEXT): {$(VPATH)}config.h
-sprintf.$(OBJEXT): {$(VPATH)}defines.h
-sprintf.$(OBJEXT): {$(VPATH)}encoding.h
-sprintf.$(OBJEXT): {$(VPATH)}id.h
-sprintf.$(OBJEXT): {$(VPATH)}intern.h
-sprintf.$(OBJEXT): {$(VPATH)}internal.h
-sprintf.$(OBJEXT): {$(VPATH)}io.h
-sprintf.$(OBJEXT): {$(VPATH)}missing.h
-sprintf.$(OBJEXT): {$(VPATH)}onigmo.h
-sprintf.$(OBJEXT): {$(VPATH)}oniguruma.h
-sprintf.$(OBJEXT): {$(VPATH)}re.h
-sprintf.$(OBJEXT): {$(VPATH)}regex.h
-sprintf.$(OBJEXT): {$(VPATH)}sprintf.c
-sprintf.$(OBJEXT): {$(VPATH)}st.h
-sprintf.$(OBJEXT): {$(VPATH)}subst.h
-sprintf.$(OBJEXT): {$(VPATH)}vsnprintf.c
-st.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-st.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-st.$(OBJEXT): $(CCAN_DIR)/list/list.h
-st.$(OBJEXT): $(CCAN_DIR)/str/str.h
-st.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-st.$(OBJEXT): $(top_srcdir)/include/ruby.h
-st.$(OBJEXT): {$(VPATH)}config.h
-st.$(OBJEXT): {$(VPATH)}defines.h
-st.$(OBJEXT): {$(VPATH)}encoding.h
-st.$(OBJEXT): {$(VPATH)}intern.h
-st.$(OBJEXT): {$(VPATH)}internal.h
-st.$(OBJEXT): {$(VPATH)}io.h
-st.$(OBJEXT): {$(VPATH)}missing.h
-st.$(OBJEXT): {$(VPATH)}onigmo.h
-st.$(OBJEXT): {$(VPATH)}oniguruma.h
-st.$(OBJEXT): {$(VPATH)}st.c
-st.$(OBJEXT): {$(VPATH)}st.h
-st.$(OBJEXT): {$(VPATH)}subst.h
-strftime.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-strftime.$(OBJEXT): $(top_srcdir)/include/ruby.h
-strftime.$(OBJEXT): {$(VPATH)}config.h
-strftime.$(OBJEXT): {$(VPATH)}defines.h
-strftime.$(OBJEXT): {$(VPATH)}encoding.h
-strftime.$(OBJEXT): {$(VPATH)}intern.h
-strftime.$(OBJEXT): {$(VPATH)}internal.h
-strftime.$(OBJEXT): {$(VPATH)}io.h
-strftime.$(OBJEXT): {$(VPATH)}missing.h
-strftime.$(OBJEXT): {$(VPATH)}onigmo.h
-strftime.$(OBJEXT): {$(VPATH)}oniguruma.h
-strftime.$(OBJEXT): {$(VPATH)}st.h
-strftime.$(OBJEXT): {$(VPATH)}strftime.c
-strftime.$(OBJEXT): {$(VPATH)}subst.h
-strftime.$(OBJEXT): {$(VPATH)}timev.h
-string.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-string.$(OBJEXT): $(top_srcdir)/include/ruby.h
-string.$(OBJEXT): {$(VPATH)}config.h
-string.$(OBJEXT): {$(VPATH)}crypt.h
-string.$(OBJEXT): {$(VPATH)}debug_counter.h
-string.$(OBJEXT): {$(VPATH)}defines.h
-string.$(OBJEXT): {$(VPATH)}encindex.h
-string.$(OBJEXT): {$(VPATH)}encoding.h
-string.$(OBJEXT): {$(VPATH)}gc.h
-string.$(OBJEXT): {$(VPATH)}id.h
-string.$(OBJEXT): {$(VPATH)}intern.h
-string.$(OBJEXT): {$(VPATH)}internal.h
-string.$(OBJEXT): {$(VPATH)}io.h
-string.$(OBJEXT): {$(VPATH)}missing.h
-string.$(OBJEXT): {$(VPATH)}onigmo.h
-string.$(OBJEXT): {$(VPATH)}oniguruma.h
-string.$(OBJEXT): {$(VPATH)}probes.dmyh
-string.$(OBJEXT): {$(VPATH)}probes.h
-string.$(OBJEXT): {$(VPATH)}re.h
-string.$(OBJEXT): {$(VPATH)}regex.h
-string.$(OBJEXT): {$(VPATH)}ruby_assert.h
-string.$(OBJEXT): {$(VPATH)}st.h
-string.$(OBJEXT): {$(VPATH)}string.c
-string.$(OBJEXT): {$(VPATH)}subst.h
-strlcat.$(OBJEXT): {$(VPATH)}config.h
-strlcat.$(OBJEXT): {$(VPATH)}missing.h
-strlcat.$(OBJEXT): {$(VPATH)}strlcat.c
-strlcpy.$(OBJEXT): {$(VPATH)}config.h
-strlcpy.$(OBJEXT): {$(VPATH)}missing.h
-strlcpy.$(OBJEXT): {$(VPATH)}strlcpy.c
-struct.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-struct.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-struct.$(OBJEXT): $(CCAN_DIR)/list/list.h
-struct.$(OBJEXT): $(CCAN_DIR)/str/str.h
-struct.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-struct.$(OBJEXT): $(top_srcdir)/include/ruby.h
-struct.$(OBJEXT): {$(VPATH)}config.h
-struct.$(OBJEXT): {$(VPATH)}defines.h
-struct.$(OBJEXT): {$(VPATH)}encoding.h
-struct.$(OBJEXT): {$(VPATH)}id.h
-struct.$(OBJEXT): {$(VPATH)}intern.h
-struct.$(OBJEXT): {$(VPATH)}internal.h
-struct.$(OBJEXT): {$(VPATH)}io.h
-struct.$(OBJEXT): {$(VPATH)}method.h
-struct.$(OBJEXT): {$(VPATH)}missing.h
-struct.$(OBJEXT): {$(VPATH)}node.h
-struct.$(OBJEXT): {$(VPATH)}onigmo.h
-struct.$(OBJEXT): {$(VPATH)}oniguruma.h
-struct.$(OBJEXT): {$(VPATH)}ruby_assert.h
-struct.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-struct.$(OBJEXT): {$(VPATH)}st.h
-struct.$(OBJEXT): {$(VPATH)}struct.c
-struct.$(OBJEXT): {$(VPATH)}subst.h
-struct.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-struct.$(OBJEXT): {$(VPATH)}thread_native.h
-struct.$(OBJEXT): {$(VPATH)}vm_core.h
-struct.$(OBJEXT): {$(VPATH)}vm_debug.h
-struct.$(OBJEXT): {$(VPATH)}vm_opts.h
-symbol.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-symbol.$(OBJEXT): $(top_srcdir)/include/ruby.h
-symbol.$(OBJEXT): {$(VPATH)}config.h
-symbol.$(OBJEXT): {$(VPATH)}defines.h
-symbol.$(OBJEXT): {$(VPATH)}encoding.h
-symbol.$(OBJEXT): {$(VPATH)}gc.h
-symbol.$(OBJEXT): {$(VPATH)}id.c
-symbol.$(OBJEXT): {$(VPATH)}id.h
-symbol.$(OBJEXT): {$(VPATH)}id_table.c
-symbol.$(OBJEXT): {$(VPATH)}id_table.h
-symbol.$(OBJEXT): {$(VPATH)}intern.h
-symbol.$(OBJEXT): {$(VPATH)}internal.h
-symbol.$(OBJEXT): {$(VPATH)}io.h
-symbol.$(OBJEXT): {$(VPATH)}missing.h
-symbol.$(OBJEXT): {$(VPATH)}onigmo.h
-symbol.$(OBJEXT): {$(VPATH)}oniguruma.h
-symbol.$(OBJEXT): {$(VPATH)}probes.dmyh
-symbol.$(OBJEXT): {$(VPATH)}probes.h
-symbol.$(OBJEXT): {$(VPATH)}ruby_assert.h
-symbol.$(OBJEXT): {$(VPATH)}st.h
-symbol.$(OBJEXT): {$(VPATH)}subst.h
-symbol.$(OBJEXT): {$(VPATH)}symbol.c
-symbol.$(OBJEXT): {$(VPATH)}symbol.h
-thread.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-thread.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-thread.$(OBJEXT): $(CCAN_DIR)/list/list.h
-thread.$(OBJEXT): $(CCAN_DIR)/str/str.h
-thread.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-thread.$(OBJEXT): $(top_srcdir)/include/ruby.h
-thread.$(OBJEXT): {$(VPATH)}config.h
-thread.$(OBJEXT): {$(VPATH)}defines.h
-thread.$(OBJEXT): {$(VPATH)}encoding.h
-thread.$(OBJEXT): {$(VPATH)}eval_intern.h
-thread.$(OBJEXT): {$(VPATH)}gc.h
-thread.$(OBJEXT): {$(VPATH)}id.h
-thread.$(OBJEXT): {$(VPATH)}intern.h
-thread.$(OBJEXT): {$(VPATH)}internal.h
-thread.$(OBJEXT): {$(VPATH)}io.h
-thread.$(OBJEXT): {$(VPATH)}method.h
-thread.$(OBJEXT): {$(VPATH)}missing.h
-thread.$(OBJEXT): {$(VPATH)}node.h
-thread.$(OBJEXT): {$(VPATH)}onigmo.h
-thread.$(OBJEXT): {$(VPATH)}oniguruma.h
-thread.$(OBJEXT): {$(VPATH)}ruby_assert.h
-thread.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-thread.$(OBJEXT): {$(VPATH)}st.h
-thread.$(OBJEXT): {$(VPATH)}subst.h
-thread.$(OBJEXT): {$(VPATH)}thread.c
-thread.$(OBJEXT): {$(VPATH)}thread.h
-thread.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).c
-thread.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-thread.$(OBJEXT): {$(VPATH)}thread_native.h
-thread.$(OBJEXT): {$(VPATH)}thread_sync.c
-thread.$(OBJEXT): {$(VPATH)}timev.h
-thread.$(OBJEXT): {$(VPATH)}vm_core.h
-thread.$(OBJEXT): {$(VPATH)}vm_debug.h
-thread.$(OBJEXT): {$(VPATH)}vm_opts.h
-time.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-time.$(OBJEXT): $(top_srcdir)/include/ruby.h
-time.$(OBJEXT): {$(VPATH)}config.h
-time.$(OBJEXT): {$(VPATH)}defines.h
-time.$(OBJEXT): {$(VPATH)}encoding.h
-time.$(OBJEXT): {$(VPATH)}id.h
-time.$(OBJEXT): {$(VPATH)}intern.h
-time.$(OBJEXT): {$(VPATH)}internal.h
-time.$(OBJEXT): {$(VPATH)}io.h
-time.$(OBJEXT): {$(VPATH)}missing.h
-time.$(OBJEXT): {$(VPATH)}onigmo.h
-time.$(OBJEXT): {$(VPATH)}oniguruma.h
-time.$(OBJEXT): {$(VPATH)}st.h
-time.$(OBJEXT): {$(VPATH)}subst.h
-time.$(OBJEXT): {$(VPATH)}time.c
-time.$(OBJEXT): {$(VPATH)}timev.h
-transcode.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-transcode.$(OBJEXT): $(top_srcdir)/include/ruby.h
-transcode.$(OBJEXT): {$(VPATH)}config.h
-transcode.$(OBJEXT): {$(VPATH)}defines.h
-transcode.$(OBJEXT): {$(VPATH)}encoding.h
-transcode.$(OBJEXT): {$(VPATH)}intern.h
-transcode.$(OBJEXT): {$(VPATH)}internal.h
-transcode.$(OBJEXT): {$(VPATH)}io.h
-transcode.$(OBJEXT): {$(VPATH)}missing.h
-transcode.$(OBJEXT): {$(VPATH)}onigmo.h
-transcode.$(OBJEXT): {$(VPATH)}oniguruma.h
-transcode.$(OBJEXT): {$(VPATH)}st.h
-transcode.$(OBJEXT): {$(VPATH)}subst.h
-transcode.$(OBJEXT): {$(VPATH)}transcode.c
-transcode.$(OBJEXT): {$(VPATH)}transcode_data.h
-util.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-util.$(OBJEXT): $(top_srcdir)/include/ruby.h
-util.$(OBJEXT): {$(VPATH)}config.h
-util.$(OBJEXT): {$(VPATH)}defines.h
-util.$(OBJEXT): {$(VPATH)}encoding.h
-util.$(OBJEXT): {$(VPATH)}intern.h
-util.$(OBJEXT): {$(VPATH)}internal.h
-util.$(OBJEXT): {$(VPATH)}io.h
-util.$(OBJEXT): {$(VPATH)}missing.h
-util.$(OBJEXT): {$(VPATH)}onigmo.h
-util.$(OBJEXT): {$(VPATH)}oniguruma.h
-util.$(OBJEXT): {$(VPATH)}st.h
-util.$(OBJEXT): {$(VPATH)}subst.h
-util.$(OBJEXT): {$(VPATH)}util.c
-util.$(OBJEXT): {$(VPATH)}util.h
-variable.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-variable.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-variable.$(OBJEXT): $(CCAN_DIR)/list/list.h
-variable.$(OBJEXT): $(CCAN_DIR)/str/str.h
-variable.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-variable.$(OBJEXT): $(top_srcdir)/include/ruby.h
-variable.$(OBJEXT): {$(VPATH)}config.h
-variable.$(OBJEXT): {$(VPATH)}constant.h
-variable.$(OBJEXT): {$(VPATH)}debug_counter.h
-variable.$(OBJEXT): {$(VPATH)}defines.h
-variable.$(OBJEXT): {$(VPATH)}encoding.h
-variable.$(OBJEXT): {$(VPATH)}id.h
-variable.$(OBJEXT): {$(VPATH)}id_table.h
-variable.$(OBJEXT): {$(VPATH)}intern.h
-variable.$(OBJEXT): {$(VPATH)}internal.h
-variable.$(OBJEXT): {$(VPATH)}io.h
-variable.$(OBJEXT): {$(VPATH)}missing.h
-variable.$(OBJEXT): {$(VPATH)}onigmo.h
-variable.$(OBJEXT): {$(VPATH)}oniguruma.h
-variable.$(OBJEXT): {$(VPATH)}st.h
-variable.$(OBJEXT): {$(VPATH)}subst.h
-variable.$(OBJEXT): {$(VPATH)}util.h
-variable.$(OBJEXT): {$(VPATH)}variable.c
-version.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-version.$(OBJEXT): $(hdrdir)/ruby/version.h
-version.$(OBJEXT): $(top_srcdir)/revision.h
-version.$(OBJEXT): $(top_srcdir)/version.h
-version.$(OBJEXT): {$(VPATH)}config.h
-version.$(OBJEXT): {$(VPATH)}defines.h
-version.$(OBJEXT): {$(VPATH)}intern.h
-version.$(OBJEXT): {$(VPATH)}missing.h
-version.$(OBJEXT): {$(VPATH)}st.h
-version.$(OBJEXT): {$(VPATH)}subst.h
-version.$(OBJEXT): {$(VPATH)}version.c
-vm.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-vm.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-vm.$(OBJEXT): $(CCAN_DIR)/list/list.h
-vm.$(OBJEXT): $(CCAN_DIR)/str/str.h
-vm.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-vm.$(OBJEXT): $(hdrdir)/ruby/version.h
-vm.$(OBJEXT): $(top_srcdir)/include/ruby.h
-vm.$(OBJEXT): {$(VPATH)}config.h
-vm.$(OBJEXT): {$(VPATH)}constant.h
-vm.$(OBJEXT): {$(VPATH)}debug_counter.h
-vm.$(OBJEXT): {$(VPATH)}defines.h
-vm.$(OBJEXT): {$(VPATH)}encoding.h
-vm.$(OBJEXT): {$(VPATH)}eval_intern.h
-vm.$(OBJEXT): {$(VPATH)}gc.h
-vm.$(OBJEXT): {$(VPATH)}id.h
-vm.$(OBJEXT): {$(VPATH)}id_table.h
-vm.$(OBJEXT): {$(VPATH)}insns.def
-vm.$(OBJEXT): {$(VPATH)}insns.inc
-vm.$(OBJEXT): {$(VPATH)}intern.h
-vm.$(OBJEXT): {$(VPATH)}internal.h
-vm.$(OBJEXT): {$(VPATH)}io.h
-vm.$(OBJEXT): {$(VPATH)}iseq.h
-vm.$(OBJEXT): {$(VPATH)}method.h
-vm.$(OBJEXT): {$(VPATH)}missing.h
-vm.$(OBJEXT): {$(VPATH)}node.h
-vm.$(OBJEXT): {$(VPATH)}onigmo.h
-vm.$(OBJEXT): {$(VPATH)}oniguruma.h
-vm.$(OBJEXT): {$(VPATH)}probes.dmyh
-vm.$(OBJEXT): {$(VPATH)}probes.h
-vm.$(OBJEXT): {$(VPATH)}probes_helper.h
-vm.$(OBJEXT): {$(VPATH)}ruby_assert.h
-vm.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-vm.$(OBJEXT): {$(VPATH)}st.h
-vm.$(OBJEXT): {$(VPATH)}subst.h
-vm.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-vm.$(OBJEXT): {$(VPATH)}thread_native.h
-vm.$(OBJEXT): {$(VPATH)}vm.c
-vm.$(OBJEXT): {$(VPATH)}vm.h
-vm.$(OBJEXT): {$(VPATH)}vm.inc
-vm.$(OBJEXT): {$(VPATH)}vm_args.c
-vm.$(OBJEXT): {$(VPATH)}vm_call_iseq_optimized.inc
-vm.$(OBJEXT): {$(VPATH)}vm_core.h
-vm.$(OBJEXT): {$(VPATH)}vm_debug.h
-vm.$(OBJEXT): {$(VPATH)}vm_eval.c
-vm.$(OBJEXT): {$(VPATH)}vm_exec.c
-vm.$(OBJEXT): {$(VPATH)}vm_exec.h
-vm.$(OBJEXT): {$(VPATH)}vm_insnhelper.c
-vm.$(OBJEXT): {$(VPATH)}vm_insnhelper.h
-vm.$(OBJEXT): {$(VPATH)}vm_method.c
-vm.$(OBJEXT): {$(VPATH)}vm_opts.h
-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): $(hdrdir)/ruby/version.h
-vm_backtrace.$(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): {$(VPATH)}onigmo.h
-vm_backtrace.$(OBJEXT): {$(VPATH)}oniguruma.h
-vm_backtrace.$(OBJEXT): {$(VPATH)}ruby_assert.h
-vm_backtrace.$(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_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): $(hdrdir)/ruby/version.h
-vm_dump.$(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): {$(VPATH)}onigmo.h
-vm_dump.$(OBJEXT): {$(VPATH)}oniguruma.h
-vm_dump.$(OBJEXT): {$(VPATH)}ruby_assert.h
-vm_dump.$(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): {$(VPATH)}iseq.h
-vm_trace.$(OBJEXT): {$(VPATH)}method.h
-vm_trace.$(OBJEXT): {$(VPATH)}missing.h
-vm_trace.$(OBJEXT): {$(VPATH)}node.h
-vm_trace.$(OBJEXT): {$(VPATH)}onigmo.h
-vm_trace.$(OBJEXT): {$(VPATH)}oniguruma.h
-vm_trace.$(OBJEXT): {$(VPATH)}ruby_assert.h
-vm_trace.$(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 02529c9960..2f4db291a4 100644
--- a/compar.c
+++ b/compar.c
@@ -10,36 +10,32 @@
 **********************************************************************/
 
 #include "ruby/ruby.h"
-#include "id.h"
 
 VALUE rb_mComparable;
 
-static VALUE
-rb_cmp(VALUE x, VALUE y)
-{
-    return rb_funcallv(x, idCmp, 1, &y);
-}
+static ID cmp;
 
 void
 rb_cmperr(VALUE x, VALUE y)
 {
-    VALUE classname;
+    const char *classname;
 
-    if (SPECIAL_CONST_P(y) || BUILTIN_TYPE(y) == T_FLOAT) {
-	classname = rb_inspect(y);
+    if (SPECIAL_CONST_P(y)) {
+	y = rb_inspect(y);
+	classname = StringValuePtr(y);
     }
     else {
-	classname = rb_obj_class(y);
+	classname = rb_obj_classname(y);
     }
-    rb_raise(rb_eArgError, "comparison of %"PRIsVALUE" with %"PRIsVALUE" failed",
-	     rb_obj_class(x), classname);
+    rb_raise(rb_eArgError, "comparison of %s with %s failed",
+	     rb_obj_classname(x), classname);
 }
 
 static VALUE
 invcmp_recursive(VALUE x, VALUE y, int recursive)
 {
     if (recursive) return Qnil;
-    return rb_cmp(y, x);
+    return rb_check_funcall(y, cmp, 1, &x);
 }
 
 VALUE
@@ -58,8 +54,24 @@ rb_invcmp(VALUE x, VALUE y)
 static VALUE
 cmp_eq_recursive(VALUE arg1, VALUE arg2, int recursive)
 {
-    if (recursive) return Qnil;
-    return rb_cmp(arg1, arg2);
+    if (recursive) return Qfalse;
+    return rb_funcallv(arg1, cmp, 1, &arg2);
+}
+
+static VALUE
+cmp_eq(VALUE *a)
+{
+    VALUE c = rb_exec_recursive_paired_outer(cmp_eq_recursive, a[0], a[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;
 }
 
 /*
@@ -69,25 +81,20 @@ cmp_eq_recursive(VALUE arg1, VALUE arg2, int recursive)
  *  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 ignored and returns false.
  */
 
 static VALUE
 cmp_equal(VALUE x, VALUE y)
 {
-    VALUE c;
-    if (x == y) return Qtrue;
-
-    c = rb_exec_recursive_paired_outer(cmp_eq_recursive, x, y, y);
+    VALUE a[2];
 
-    if (NIL_P(c)) return Qfalse;
-    if (rb_cmpint(c, x, y) == 0) return Qtrue;
-    return Qfalse;
-}
+    if (x == y) return Qtrue;
 
-static int
-cmpint(VALUE x, VALUE y)
-{
-    return rb_cmpint(rb_cmp(x, y), x, y);
+    a[0] = x; a[1] = y;
+    return rb_rescue(cmp_eq, (VALUE)a, cmp_failed, 0);
 }
 
 /*
@@ -101,7 +108,9 @@ cmpint(VALUE x, VALUE y)
 static VALUE
 cmp_gt(VALUE x, VALUE y)
 {
-    if (cmpint(x, y) > 0) return Qtrue;
+    VALUE c = rb_funcall(x, cmp, 1, y);
+
+    if (rb_cmpint(c, x, y) > 0) return Qtrue;
     return Qfalse;
 }
 
@@ -116,7 +125,9 @@ cmp_gt(VALUE x, VALUE y)
 static VALUE
 cmp_ge(VALUE x, VALUE y)
 {
-    if (cmpint(x, y) >= 0) return Qtrue;
+    VALUE c = rb_funcall(x, cmp, 1, y);
+
+    if (rb_cmpint(c, x, y) >= 0) return Qtrue;
     return Qfalse;
 }
 
@@ -131,7 +142,9 @@ cmp_ge(VALUE x, VALUE y)
 static VALUE
 cmp_lt(VALUE x, VALUE y)
 {
-    if (cmpint(x, y) < 0) return Qtrue;
+    VALUE c = rb_funcall(x, cmp, 1, y);
+
+    if (rb_cmpint(c, x, y) < 0) return Qtrue;
     return Qfalse;
 }
 
@@ -146,7 +159,9 @@ cmp_lt(VALUE x, VALUE y)
 static VALUE
 cmp_le(VALUE x, VALUE y)
 {
-    if (cmpint(x, y) <= 0) return Qtrue;
+    VALUE c = rb_funcall(x, cmp, 1, y);
+
+    if (rb_cmpint(c, x, y) <= 0) return Qtrue;
     return Qfalse;
 }
 
@@ -168,45 +183,12 @@ cmp_le(VALUE x, VALUE y)
 static VALUE
 cmp_between(VALUE x, VALUE min, VALUE max)
 {
-    if (cmpint(x, min) < 0) return Qfalse;
-    if (cmpint(x, max) > 0) return Qfalse;
+    if (RTEST(cmp_lt(x, min))) return Qfalse;
+    if (RTEST(cmp_gt(x, max))) return Qfalse;
     return Qtrue;
 }
 
 /*
- *  call-seq:
- *     obj.clamp(min, max) ->  obj
- *
- * Returns <i>min</i> if <i>obj</i> <code><=></code> <i>min</i> is less
- * than zero, <i>max</i> if <i>obj</i> <code><=></code> <i>max</i> is
- * greater than zero and <i>obj</i> otherwise.
- *
- *     12.clamp(0, 100)         #=> 12
- *     523.clamp(0, 100)        #=> 100
- *     -3.123.clamp(0, 100)     #=> 0
- *
- *     'd'.clamp('a', 'f')      #=> 'd'
- *     'z'.clamp('a', 'f')      #=> 'f'
- */
-
-static VALUE
-cmp_clamp(VALUE x, VALUE min, VALUE max)
-{
-    int c;
-
-    if (cmpint(min, max) > 0) {
-	rb_raise(rb_eArgError, "min argument must be smaller than max argument");
-    }
-
-    c = cmpint(x, min);
-    if (c == 0) return x;
-    if (c < 0) return min;
-    c = cmpint(x, max);
-    if (c > 0) return max;
-    return x;
-}
-
-/*
  *  The <code>Comparable</code> mixin is used by classes whose objects
  *  may be ordered. The class must define the <code><=></code> operator,
  *  which compares the receiver against another object, returning -1, 0,
@@ -221,8 +203,8 @@ cmp_clamp(VALUE x, VALUE min, VALUE max)
  *     class SizeMatters
  *       include Comparable
  *       attr :str
- *       def <=>(other)
- *         str.size <=> other.str.size
+ *       def <=>(anOther)
+ *         str.size <=> anOther.str.size
  *       end
  *       def initialize(str)
  *         @str = str
@@ -258,5 +240,6 @@ Init_Comparable(void)
     rb_define_method(rb_mComparable, "<", cmp_lt, 1);
     rb_define_method(rb_mComparable, "<=", cmp_le, 1);
     rb_define_method(rb_mComparable, "between?", cmp_between, 2);
-    rb_define_method(rb_mComparable, "clamp", cmp_clamp, 2);
+
+    cmp = rb_intern("<=>");
 }
diff --git a/compile.c b/compile.c
index 8f4a6dcc87..2b58462d16 100644
--- a/compile.c
+++ b/compile.c
@@ -9,9 +9,8 @@
 
 **********************************************************************/
 
+#include "ruby/ruby.h"
 #include "internal.h"
-#include "ruby/re.h"
-#include "encindex.h"
 #include <math.h>
 
 #define USE_INSN_STACK_INCREASE 1
@@ -19,27 +18,16 @@
 #include "iseq.h"
 #include "insns.inc"
 #include "insns_info.inc"
-#include "id_table.h"
-#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 FIXNUM_INC(n, i) ((n)+(INT2FIX(i)&~FIXNUM_FLAG))
 #define FIXNUM_OR(n, i) ((n)|INT2FIX(i))
 
 typedef struct iseq_link_element {
     enum {
+	ISEQ_ELEMENT_NONE,
 	ISEQ_ELEMENT_LABEL,
 	ISEQ_ELEMENT_INSN,
-	ISEQ_ELEMENT_ADJUST,
-	ISEQ_ELEMENT_TRACE
+	ISEQ_ELEMENT_ADJUST
     } type;
     struct iseq_link_element *next;
     struct iseq_link_element *prev;
@@ -50,35 +38,22 @@ 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;
     int position;
     int sc_state;
+    int set;
     int sp;
-    int refcnt;
-    unsigned int set: 1;
-    unsigned int rescued: 2;
-    unsigned int unremovable: 1;
 } LABEL;
 
 typedef struct iseq_insn_data {
     LINK_ELEMENT link;
     enum ruby_vminsn_type insn_id;
+    unsigned int line_no;
     int operand_size;
     int sc_state;
     VALUE *operands;
-    struct {
-	int line_no;
-	rb_event_flag_t events;
-    } insn_info;
 } INSN;
 
 typedef struct iseq_adjust_data {
@@ -87,11 +62,6 @@ typedef struct iseq_adjust_data {
     int line_no;
 } ADJUST;
 
-typedef struct iseq_trace_data {
-    LINK_ELEMENT link;
-    rb_event_flag_t event;
-} TRACE;
-
 struct ensure_range {
     LABEL *begin;
     LABEL *end;
@@ -99,7 +69,7 @@ struct ensure_range {
 };
 
 struct iseq_compile_data_ensure_node_stack {
-    const NODE *ensure_node;
+    NODE *ensure_node;
     struct iseq_compile_data_ensure_node_stack *prev;
     struct ensure_range *erange;
 };
@@ -124,7 +94,7 @@ struct iseq_compile_data_ensure_node_stack {
 #if CPDEBUG >= 0
 #define compile_debug CPDEBUG
 #else
-#define compile_debug ISEQ_COMPILE_DATA(iseq)->option->debug_level
+#define compile_debug iseq->compile_data->option->debug_level
 #endif
 
 #if CPDEBUG
@@ -154,24 +124,35 @@ struct iseq_compile_data_ensure_node_stack {
 
 #define debug_node_start(node)  ((void) \
   (compile_debug_print_indent(1) && \
-   (ruby_debug_print_node(1, CPDEBUG, "", (const NODE *)(node)), gl_node_level)), \
+   (ruby_debug_print_node(1, CPDEBUG, "", (NODE *)(node)), gl_node_level)), \
    gl_node_level++)
 
 #define debug_node_end()  gl_node_level --
 
 #else
 
-#define debugi(header, id)                 ((void)0)
-#define debugp(header, value)              ((void)0)
-#define debugp_verbose(header, value)      ((void)0)
-#define debugp_verbose_node(header, value) ((void)0)
-#define debugp_param(header, value)        ((void)0)
+static inline ID
+r_id(ID id)
+{
+    return id;
+}
+
+static inline VALUE
+r_value(VALUE value)
+{
+    return value;
+}
+
+#define debugi(header, id)                 r_id(id)
+#define debugp(header, value)              r_value(value)
+#define debugp_verbose(header, value)      r_value(value)
+#define debugp_verbose_node(header, value) r_value(value)
+#define debugp_param(header, value)        r_value(value)
 #define debug_node_start(node)             ((void)0)
 #define debug_node_end()                   ((void)0)
 #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
@@ -179,17 +160,21 @@ struct iseq_compile_data_ensure_node_stack {
 #define debug_compile(msg, v) (v)
 #endif
 
-#define LVAR_ERRINFO (1)
 
 /* create new label */
 #define NEW_LABEL(l) new_label_body(iseq, (l))
-#define LABEL_FORMAT "<L%03d>"
 
-#define NEW_ISEQ(node, name, type, line_no) \
-  new_child_iseq(iseq, (node), rb_fstring(name), 0, (type), (line_no))
+#define iseq_path(iseq) \
+  (((rb_iseq_t*)DATA_PTR(iseq))->location.path)
+
+#define iseq_absolute_path(iseq) \
+  (((rb_iseq_t*)DATA_PTR(iseq))->location.absolute_path)
+
+#define NEW_ISEQVAL(node, name, type, line_no)       \
+  new_child_iseq(iseq, (node), (name), 0, (type), (line_no))
 
-#define NEW_CHILD_ISEQ(node, name, type, line_no) \
-  new_child_iseq(iseq, (node), rb_fstring(name), iseq, (type), (line_no))
+#define NEW_CHILD_ISEQVAL(node, name, type, line_no)       \
+  new_child_iseq(iseq, (node), (name), iseq->self, (type), (line_no))
 
 /* add instructions */
 #define ADD_SEQ(seq1, seq2) \
@@ -199,24 +184,13 @@ struct iseq_compile_data_ensure_node_stack {
 #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) \
-  ELEM_INSERT_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) \
-  ELEM_INSERT_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), LABEL_REF(label))
+#define ADD_INSNL(seq, line, insn, label) ADD_INSN1(seq, line, insn, label)
 
 #define ADD_INSN2(seq, line, insn, op1, op2) \
   ADD_ELEM((seq), (LINK_ELEMENT *) \
@@ -228,78 +202,35 @@ struct iseq_compile_data_ensure_node_stack {
 
 /* Specific Insn factory */
 #define ADD_SEND(seq, line, id, argc) \
-  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)
+  ADD_SEND_R((seq), (line), (id), (argc), (VALUE)Qfalse, (VALUE)INT2FIX(0))
 
 #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), NULL, (VALUE)INT2FIX(VM_CALL_FCALL), NULL)
+  ADD_SEND_R((seq), (line), (id), (argc), (VALUE)Qfalse, (VALUE)INT2FIX(VM_CALL_FCALL))
 
 #define ADD_CALL_WITH_BLOCK(seq, line, id, argc, block) \
-  ADD_SEND_R((seq), (line), (id), (argc), (block), (VALUE)INT2FIX(VM_CALL_FCALL), NULL)
-
-#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, event) \
-  ADD_ELEM((seq), (LINK_ELEMENT *)new_trace_body(iseq, (event)))
-#define ADD_TRACE_LINE_COVERAGE(seq, line) \
-  do { \
-      if (ISEQ_COVERAGE(iseq) && \
-	  ISEQ_LINE_COVERAGE(iseq) && \
-	  (line) > 0) { \
-	  RARRAY_ASET(ISEQ_LINE_COVERAGE(iseq), (line) - 1, INT2FIX(0)); \
-	  ADD_INSN2((seq), (line), tracecoverage, INT2FIX(RUBY_EVENT_COVERAGE_LINE), INT2FIX(line)); \
-      } \
-  } while (0)
+  ADD_SEND_R((seq), (line), (id), (argc), (block), (VALUE)INT2FIX(VM_CALL_FCALL))
 
+#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 DECL_BRANCH_BASE(branches, first_line, first_column, last_line, last_column, type) \
+#define ADD_TRACE(seq, line, event) \
   do { \
-      if (ISEQ_COVERAGE(iseq) && \
-	  ISEQ_BRANCH_COVERAGE(iseq) && \
-	  (first_line) > 0) { \
-	  VALUE structure = RARRAY_AREF(ISEQ_BRANCH_COVERAGE(iseq), 0); \
-	  branches = rb_ary_tmp_new(0); \
-	  rb_ary_push(structure, branches); \
-	  rb_ary_push(branches, ID2SYM(rb_intern(type))); \
-	  rb_ary_push(branches, INT2FIX(first_line)); \
-	  rb_ary_push(branches, INT2FIX(first_column)); \
-	  rb_ary_push(branches, INT2FIX(last_line)); \
-	  rb_ary_push(branches, INT2FIX(last_column)); \
+      if ((event) == RUBY_EVENT_LINE && iseq->coverage && \
+	  (line) != iseq->compile_data->last_coverable_line) { \
+	  RARRAY_ASET(iseq->coverage, (line) - 1, INT2FIX(0)); \
+	  iseq->compile_data->last_coverable_line = (line); \
+	  ADD_INSN1((seq), (line), trace, INT2FIX(RUBY_EVENT_COVERAGE)); \
       } \
-  } while (0)
-#define ADD_TRACE_BRANCH_COVERAGE(seq, first_line, first_column, last_line, last_column, type, branches) \
-  do { \
-      if (ISEQ_COVERAGE(iseq) && \
-	  ISEQ_BRANCH_COVERAGE(iseq) && \
-	  (first_line) > 0) { \
-	  VALUE counters = RARRAY_AREF(ISEQ_BRANCH_COVERAGE(iseq), 1); \
-	  long counter_idx = RARRAY_LEN(counters); \
-	  rb_ary_push(counters, INT2FIX(0)); \
-	  rb_ary_push(branches, ID2SYM(rb_intern(type))); \
-	  rb_ary_push(branches, INT2FIX(first_line)); \
-	  rb_ary_push(branches, INT2FIX(first_column)); \
-	  rb_ary_push(branches, INT2FIX(last_line)); \
-	  rb_ary_push(branches, INT2FIX(last_column)); \
-	  rb_ary_push(branches, INT2FIX(counter_idx)); \
-	  ADD_INSN2((seq), (first_line), tracecoverage, INT2FIX(RUBY_EVENT_COVERAGE_BRANCH), INT2FIX(counter_idx)); \
+      if (iseq->compile_data->option->trace_instruction) { \
+	  ADD_INSN1((seq), (line), trace, INT2FIX(event)); \
       } \
   } while (0)
 
-static void iseq_add_getlocal(rb_iseq_t *iseq, LINK_ANCHOR *const seq, int line, int idx, int level);
-static void iseq_add_setlocal(rb_iseq_t *iseq, LINK_ANCHOR *const seq, int line, int idx, int level);
-
-#define ADD_GETLOCAL(seq, line, idx, level) iseq_add_getlocal(iseq, (seq), (line), (idx), (level))
-#define ADD_SETLOCAL(seq, line, idx, level) iseq_add_setlocal(iseq, (seq), (line), (idx), (level))
-
 /* add label */
 #define ADD_LABEL(seq, label) \
   ADD_ELEM((seq), (LINK_ELEMENT *) (label))
@@ -313,17 +244,11 @@ static void iseq_add_setlocal(rb_iseq_t *iseq, LINK_ANCHOR *const seq, int line,
 #define ADD_ADJUST_RESTORE(seq, label) \
   ADD_ELEM((seq), (LINK_ELEMENT *) new_adjust_body(iseq, (label), -1))
 
-#define LABEL_UNREMOVABLE(label) \
-    ((label) ? (LABEL_REF(label), (label)->unremovable=1) : 0)
-#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);			\
-    LABEL_UNREMOVABLE(ls);							\
-    LABEL_REF(le);								\
-    LABEL_REF(lc);								\
-    rb_ary_push(ISEQ_COMPILE_DATA(iseq)->catch_table_ary, freeze_hide_obj(_e));	\
-} while (0)
+#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)))
 
 /* compile node */
 #define COMPILE(anchor, desc, node) \
@@ -331,19 +256,14 @@ static void iseq_add_setlocal(rb_iseq_t *iseq, LINK_ANCHOR *const seq, int line,
                  iseq_compile_each(iseq, (anchor), (node), 0)))
 
 /* compile node, this node's value will be popped */
-#define COMPILE_POPPED(anchor, desc, node)    \
+#define COMPILE_POPED(anchor, desc, node)    \
   (debug_compile("== " desc "\n", \
                  iseq_compile_each(iseq, (anchor), (node), 1)))
 
-/* compile node, which is popped when 'popped' is true */
-#define COMPILE_(anchor, desc, node, popped)  \
+/* compile node, which is popped when 'poped' is true */
+#define COMPILE_(anchor, desc, node, poped)  \
   (debug_compile("== " desc "\n", \
-                 iseq_compile_each(iseq, (anchor), (node), (popped))))
-
-#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))
+                 iseq_compile_each(iseq, (anchor), (node), (poped))))
 
 #define OPERAND_AT(insn, idx) \
   (((INSN*)(insn))->operands[(idx)])
@@ -351,104 +271,34 @@ static void iseq_add_setlocal(rb_iseq_t *iseq, LINK_ANCHOR *const seq, int line,
 #define INSN_OF(insn) \
   (((INSN*)(insn))->insn_id)
 
-#define IS_INSN(link) ((link)->type == ISEQ_ELEMENT_INSN)
-#define IS_LABEL(link) ((link)->type == ISEQ_ELEMENT_LABEL)
-#define IS_ADJUST(link) ((link)->type == ISEQ_ELEMENT_ADJUST)
-#define IS_TRACE(link) ((link)->type == ISEQ_ELEMENT_TRACE)
-#define IS_INSN_ID(iobj, insn) (INSN_OF(iobj) == BIN(insn))
-#define IS_NEXT_INSN_ID(link, insn) \
-    ((link)->next && IS_INSN((link)->next) && IS_INSN_ID((link)->next, insn))
-
 /* error */
-#if CPDEBUG > 0
-NORETURN(static void append_compile_error(rb_iseq_t *iseq, int line, const char *fmt, ...));
-#endif
-
-static void
-append_compile_error(rb_iseq_t *iseq, int line, const char *fmt, ...)
-{
-    VALUE err_info = ISEQ_COMPILE_DATA(iseq)->err_info;
-    VALUE file = rb_iseq_path(iseq);
-    VALUE err = err_info == Qtrue ? Qfalse : err_info;
-    va_list args;
-
-    va_start(args, fmt);
-    err = rb_syntax_error_append(err, file, line, -1, NULL, fmt, args);
-    va_end(args);
-    if (NIL_P(err_info)) {
-	RB_OBJ_WRITE(iseq, &ISEQ_COMPILE_DATA(iseq)->err_info, err);
-	rb_set_errinfo(err);
-    }
-    else if (!err_info) {
-	RB_OBJ_WRITE(iseq, &ISEQ_COMPILE_DATA(iseq)->err_info, Qtrue);
-    }
-    if (compile_debug) rb_exc_fatal(err);
+#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;                           \
+  OBJ_WRITE(iseq->self, &iseq->compile_data->err_info, GET_THREAD()->errinfo); \
+  GET_THREAD()->errinfo = tmp;                     \
+  ret = 0;                                         \
+  break;                                           \
 }
 
-#if 0
-static void
-compile_bug(rb_iseq_t *iseq, int line, const char *fmt, ...)
-{
-    va_list args;
-    va_start(args, fmt);
-    rb_report_bug_valist(rb_iseq_path(iseq), line, fmt, args);
-    va_end(args);
-    abort();
-}
-#endif
+#define ERROR_ARGS ruby_sourcefile, nd_line(node),
 
-#define COMPILE_ERROR append_compile_error
-
-#define ERROR_ARGS_AT(n) iseq, nd_line(n),
-#define ERROR_ARGS ERROR_ARGS_AT(node)
-
-#define EXPECT_NODE(prefix, node, ndtype, errval) \
-do { \
-    const NODE *error_node = (node); \
-    enum node_type error_type = nd_type(error_node); \
-    if (error_type != (ndtype)) { \
-	COMPILE_ERROR(ERROR_ARGS_AT(error_node) \
-		      prefix ": " #ndtype " is expected, but %s", \
-		      ruby_node_name(error_type)); \
-	return errval; \
-    } \
-} while (0)
-
-#define EXPECT_NODE_NONULL(prefix, parent, ndtype, errval) \
-do { \
-    COMPILE_ERROR(ERROR_ARGS_AT(parent) \
-		  prefix ": must be " #ndtype ", but 0"); \
-    return errval; \
-} while (0)
-
-#define UNKNOWN_NODE(prefix, node, errval) \
-do { \
-    const NODE *error_node = (node); \
-    COMPILE_ERROR(ERROR_ARGS_AT(error_node) prefix ": unknown node (%s)", \
-		  ruby_node_name(nd_type(error_node))); \
-    return errval; \
-} while (0)
 
 #define COMPILE_OK 1
 #define COMPILE_NG 0
 
-#define CHECK(sub) if (!(sub)) {BEFORE_RETURN;return COMPILE_NG;}
-#define BEFORE_RETURN
 
 /* leave name uninitialized so that compiler warn if INIT_ANCHOR is
  * missing */
 #define DECL_ANCHOR(name) \
-    LINK_ANCHOR name[1] = {{{0,},}}
+  LINK_ANCHOR *name, name##_body__ = {{0,},}
 #define INIT_ANCHOR(name) \
-    (name->last = &name->anchor)
+  (name##_body__.last = &name##_body__.anchor, name = &name##_body__)
 
-static inline VALUE
-freeze_hide_obj(VALUE obj)
-{
-    OBJ_FREEZE(obj);
-    RBASIC_CLEAR_CLASS(obj);
-    return obj;
-}
+#define hide_obj(obj) do {OBJ_FREEZE(obj); RBASIC_CLEAR_CLASS(obj);} while (0)
 
 #include "optinsn.inc"
 #if OPT_INSTRUCTIONS_UNIFICATION
@@ -465,43 +315,42 @@ freeze_hide_obj(VALUE obj)
 #endif
 
 #if CPDEBUG
-#define gl_node_level ISEQ_COMPILE_DATA(iseq)->node_level
+#define gl_node_level iseq->compile_data->node_level
+#if 0
+static void debug_list(ISEQ_ARG_DECLARE LINK_ANCHOR *anchor);
+#endif
 #endif
 
-static void dump_disasm_list_with_cursor(const LINK_ELEMENT *link, const LINK_ELEMENT *curr, const LABEL *dest);
-static void dump_disasm_list(const LINK_ELEMENT *elem);
+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, enum ruby_vminsn_type insn_id, int argc, ...);
+static INSN *new_insn_body(rb_iseq_t *iseq, int line_no, int 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);
-static TRACE *new_trace_body(rb_iseq_t *iseq, rb_event_flag_t event);
 
+static int iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *anchor, NODE * n, int);
+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_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *anchor, const NODE *n, int);
-static int iseq_setup(rb_iseq_t *iseq, LINK_ANCHOR *const anchor);
-static int iseq_optimize(rb_iseq_t *iseq, LINK_ANCHOR *const anchor);
-static int iseq_insns_unification(rb_iseq_t *iseq, LINK_ANCHOR *const anchor);
-
-static int iseq_set_local_table(rb_iseq_t *iseq, const ID *tbl);
+static int iseq_set_local_table(rb_iseq_t *iseq, ID *tbl);
 static int iseq_set_exception_local_table(rb_iseq_t *iseq);
-static int iseq_set_arguments(rb_iseq_t *iseq, LINK_ANCHOR *const anchor, const NODE *const node);
+static int iseq_set_arguments(rb_iseq_t *iseq, LINK_ANCHOR *anchor, NODE * node);
 
-static int iseq_set_sequence_stackcaching(rb_iseq_t *iseq, LINK_ANCHOR *const anchor);
-static int iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *const anchor);
+static int iseq_set_sequence_stackcaching(rb_iseq_t *iseq, LINK_ANCHOR *anchor);
+static int iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *anchor);
 static int iseq_set_exception_table(rb_iseq_t *iseq);
 static int iseq_set_optargs_table(rb_iseq_t *iseq);
 
-static int compile_defined_expr(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node, VALUE needstr);
-
 /*
  * To make Array to LinkedList, use link_anchor
  */
 
 static void
-verify_list(ISEQ_ARG_DECLARE const char *info, LINK_ANCHOR *const anchor)
+verify_list(ISEQ_ARG_DECLARE const char *info, LINK_ANCHOR *anchor)
 {
 #if CPDEBUG
     int flag = 0;
@@ -536,7 +385,7 @@ verify_list(ISEQ_ARG_DECLARE const char *info, LINK_ANCHOR *const anchor)
  * elem1, elem2 => elem1, elem2, elem
  */
 static void
-ADD_ELEM(ISEQ_ARG_DECLARE LINK_ANCHOR *const anchor, LINK_ELEMENT *elem)
+ADD_ELEM(ISEQ_ARG_DECLARE LINK_ANCHOR *anchor, LINK_ELEMENT *elem)
 {
     elem->prev = anchor->last;
     anchor->last->next = elem;
@@ -548,7 +397,7 @@ ADD_ELEM(ISEQ_ARG_DECLARE LINK_ANCHOR *const anchor, LINK_ELEMENT *elem)
  * elem1, before, elem2 => elem1, before, elem, elem2
  */
 static void
-APPEND_ELEM(ISEQ_ARG_DECLARE LINK_ANCHOR *const anchor, LINK_ELEMENT *before, LINK_ELEMENT *elem)
+APPEND_ELEM(ISEQ_ARG_DECLARE LINK_ANCHOR *anchor, LINK_ELEMENT *before, LINK_ELEMENT *elem)
 {
     elem->prev = before;
     elem->next = before->next;
@@ -559,11 +408,11 @@ APPEND_ELEM(ISEQ_ARG_DECLARE LINK_ANCHOR *const anchor, LINK_ELEMENT *before, LI
 }
 #if CPDEBUG < 0
 #define ADD_ELEM(anchor, elem) ADD_ELEM(iseq, (anchor), (elem))
-#define APPEND_ELEM(anchor, before, elem) APPEND_ELEM(iseq, (anchor), (before), (elem))
+#define APPEND_ELEM(anchor, before, elem) ADD_ELEM(iseq, (anchor), (before), (elem))
 #endif
 
 static int
-iseq_add_mark_object(const rb_iseq_t *iseq, VALUE v)
+iseq_add_mark_object(rb_iseq_t *iseq, VALUE v)
 {
     if (!SPECIAL_CONST_P(v)) {
 	rb_iseq_add_mark_object(iseq, v);
@@ -571,23 +420,17 @@ iseq_add_mark_object(const rb_iseq_t *iseq, VALUE v)
     return COMPILE_OK;
 }
 
+#define ruby_sourcefile		RSTRING_PTR(iseq->location.path)
+
 static int
-iseq_add_mark_object_compile_time(const rb_iseq_t *iseq, VALUE v)
+iseq_add_mark_object_compile_time(rb_iseq_t *iseq, VALUE v)
 {
     if (!SPECIAL_CONST_P(v)) {
-	rb_ary_push(ISEQ_COMPILE_DATA(iseq)->mark_ary, v);
+	rb_ary_push(iseq->compile_data->mark_ary, v);
     }
     return COMPILE_OK;
 }
 
-static inline VALUE
-freeze_literal(rb_iseq_t *iseq, VALUE lit)
-{
-    lit = rb_fstring(lit);
-    rb_ary_push(ISEQ_COMPILE_DATA(iseq)->mark_ary, lit);
-    return lit;
-}
-
 static int
 validate_label(st_data_t name, st_data_t label, st_data_t arg)
 {
@@ -595,9 +438,10 @@ validate_label(st_data_t name, st_data_t label, st_data_t arg)
     LABEL *lobj = (LABEL *)label;
     if (!lobj->link.next) {
 	do {
-	    COMPILE_ERROR(iseq, lobj->position,
-			  "%"PRIsVALUE": undefined label",
-			  rb_sym2str((VALUE)name));
+	    int ret;
+	    COMPILE_ERROR((ruby_sourcefile, lobj->position,
+			   "%s: undefined label", rb_id2name((ID)name)));
+	    if (ret) break;
 	} while (0);
     }
     return ST_CONTINUE;
@@ -607,120 +451,108 @@ static void
 validate_labels(rb_iseq_t *iseq, st_table *labels_table)
 {
     st_foreach(labels_table, validate_label, (st_data_t)iseq);
-    st_free_table(labels_table);
+    if (!NIL_P(iseq->compile_data->err_info)) {
+	rb_exc_raise(iseq->compile_data->err_info);
+    }
 }
 
 VALUE
-rb_iseq_compile_node(rb_iseq_t *iseq, const NODE *node)
+rb_iseq_compile_node(VALUE self, NODE *node)
 {
     DECL_ANCHOR(ret);
+    rb_iseq_t *iseq;
     INIT_ANCHOR(ret);
+    GetISeqPtr(self, iseq);
 
     if (node == 0) {
 	COMPILE(ret, "nil", node);
 	iseq_set_local_table(iseq, 0);
     }
-    else if (imemo_type_p((VALUE)node, imemo_ifunc)) {
-	const struct vm_ifunc *ifunc = (struct vm_ifunc *)node;
-	/* user callback */
-	(*ifunc->func)(iseq, ret, ifunc->data);
-    }
-    /* assume node is T_NODE */
     else if (nd_type(node) == NODE_SCOPE) {
 	/* iseq type of top, method, class, block */
 	iseq_set_local_table(iseq, node->nd_tbl);
 	iseq_set_arguments(iseq, ret, node->nd_args);
 
-	switch (iseq->body->type) {
+	switch (iseq->type) {
 	  case ISEQ_TYPE_BLOCK:
 	    {
-		LABEL *start = ISEQ_COMPILE_DATA(iseq)->start_label = NEW_LABEL(0);
-		LABEL *end = ISEQ_COMPILE_DATA(iseq)->end_label = NEW_LABEL(0);
+		LABEL *start = iseq->compile_data->start_label = NEW_LABEL(0);
+		LABEL *end = iseq->compile_data->end_label = NEW_LABEL(0);
 
-		start->rescued = LABEL_RESCUE_BEG;
-		end->rescued = LABEL_RESCUE_END;
-
-		ADD_TRACE(ret, RUBY_EVENT_B_CALL);
-		ADD_INSN (ret, FIX2INT(iseq->body->location.first_lineno), nop);
 		ADD_LABEL(ret, start);
-		CHECK(COMPILE(ret, "block body", node->nd_body));
+		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, RUBY_EVENT_B_RETURN);
-		ISEQ_COMPILE_DATA(iseq)->last_line = iseq->body->location.code_range.last_loc.lineno;
+		ADD_TRACE(ret, nd_line(node), RUBY_EVENT_B_RETURN);
 
 		/* wide range catch handler must put at last */
-		ADD_CATCH_ENTRY(CATCH_TYPE_REDO, start, end, NULL, start);
-		ADD_CATCH_ENTRY(CATCH_TYPE_NEXT, start, end, NULL, end);
+		ADD_CATCH_ENTRY(CATCH_TYPE_REDO, start, end, 0, start);
+		ADD_CATCH_ENTRY(CATCH_TYPE_NEXT, start, end, 0, end);
 		break;
 	    }
 	  case ISEQ_TYPE_CLASS:
 	    {
-		ADD_TRACE(ret, RUBY_EVENT_CLASS);
-		CHECK(COMPILE(ret, "scoped node", node->nd_body));
-		ADD_TRACE(ret, RUBY_EVENT_END);
-		ISEQ_COMPILE_DATA(iseq)->last_line = nd_line(node);
+		ADD_TRACE(ret, FIX2INT(iseq->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, RUBY_EVENT_CALL);
-		CHECK(COMPILE(ret, "scoped node", node->nd_body));
-		ADD_TRACE(ret, RUBY_EVENT_RETURN);
-		ISEQ_COMPILE_DATA(iseq)->last_line = nd_line(node);
+		ADD_TRACE(ret, FIX2INT(iseq->location.first_lineno), RUBY_EVENT_CALL);
+		COMPILE(ret, "scoped node", node->nd_body);
+		ADD_TRACE(ret, nd_line(node), RUBY_EVENT_RETURN);
 		break;
 	    }
 	  default: {
-	    CHECK(COMPILE(ret, "scoped node", node->nd_body));
+	    COMPILE(ret, "scoped node", node->nd_body);
 	    break;
 	  }
 	}
     }
+    else if (nd_type(node) == NODE_IFUNC) {
+	/* user callback */
+	(*node->nd_cfnc)(iseq, ret, node->nd_tval);
+    }
     else {
-	const char *m;
-#define INVALID_ISEQ_TYPE(type) \
-	ISEQ_TYPE_##type: m = #type; goto invalid_iseq_type
-	switch (iseq->body->type) {
-	  case INVALID_ISEQ_TYPE(METHOD);
-	  case INVALID_ISEQ_TYPE(CLASS);
-	  case INVALID_ISEQ_TYPE(BLOCK);
-	  case INVALID_ISEQ_TYPE(EVAL);
-	  case INVALID_ISEQ_TYPE(MAIN);
-	  case INVALID_ISEQ_TYPE(TOP);
-#undef INVALID_ISEQ_TYPE /* invalid iseq types end */
+	switch (iseq->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;
 	  case ISEQ_TYPE_RESCUE:
 	    iseq_set_exception_local_table(iseq);
-	    CHECK(COMPILE(ret, "rescue", node));
+	    COMPILE(ret, "rescue", node);
 	    break;
 	  case ISEQ_TYPE_ENSURE:
 	    iseq_set_exception_local_table(iseq);
-	    CHECK(COMPILE_POPPED(ret, "ensure", node));
+	    COMPILE_POPED(ret, "ensure", node);
 	    break;
 	  case ISEQ_TYPE_DEFINED_GUARD:
-	    iseq_set_exception_local_table(iseq);
-	    CHECK(COMPILE(ret, "defined guard", node));
+	    iseq_set_local_table(iseq, 0);
+	    COMPILE(ret, "defined guard", node);
 	    break;
 	  default:
-	    COMPILE_ERROR(ERROR_ARGS "unknown scope: %d", iseq->body->type);
-	    return COMPILE_NG;
-	  invalid_iseq_type:
-	    COMPILE_ERROR(ERROR_ARGS "compile/ISEQ_TYPE_%s should not be reached", m);
-	    return COMPILE_NG;
+	    rb_bug("unknown scope");
 	}
     }
 
-    if (iseq->body->type == ISEQ_TYPE_RESCUE || iseq->body->type == ISEQ_TYPE_ENSURE) {
-	ADD_GETLOCAL(ret, 0, LVAR_ERRINFO, 0);
+    if (iseq->type == ISEQ_TYPE_RESCUE || iseq->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(iseq)->last_line, leave);
+	ADD_INSN(ret, iseq->compile_data->last_line, leave);
     }
 
 #if SUPPORT_JOKE
-    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);
+    if (iseq->compile_data->labels_table) {
+	validate_labels(iseq, iseq->compile_data->labels_table);
     }
 #endif
     return iseq_setup(iseq, ret);
@@ -731,150 +563,54 @@ 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 int i;
-    VALUE *encoded = (VALUE *)iseq->body->iseq_encoded;
+    unsigned long i;
+
+    iseq->iseq_encoded = ALLOC_N(VALUE, iseq->iseq_size);
+    MEMCPY(iseq->iseq_encoded, iseq->iseq, VALUE, iseq->iseq_size);
 
-    for (i = 0; i < iseq->body->iseq_size; /* */ ) {
-	int insn = (int)iseq->body->iseq_encoded[i];
+    for (i = 0; i < iseq->iseq_size; /* */ ) {
+	int insn = (int)iseq->iseq_encoded[i];
 	int len = insn_len(insn);
-	encoded[i] = (VALUE)table[insn];
+	iseq->iseq_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(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 */
+	iseq->compile_data->storage_current;
 
-    if (size >= INT_MAX - padding) rb_memerror();
-    if (storage->pos + size + padding > storage->size) {
-	unsigned int alloc_size = storage->size;
+    if (storage->pos + size > storage->size) {
+	unsigned long alloc_size = storage->size * 2;
 
-	while (alloc_size < size + PADDING_SIZE_MAX) {
-	    if (alloc_size >= INT_MAX / 2) rb_memerror();
+      retry:
+	if (alloc_size < size) {
 	    alloc_size *= 2;
+	    goto retry;
 	}
 	storage->next = (void *)ALLOC_N(char, alloc_size +
-					SIZEOF_ISEQ_COMPILE_DATA_STORAGE);
-	storage = ISEQ_COMPILE_DATA(iseq)->storage_current = storage->next;
+					sizeof(struct
+					       iseq_compile_data_storage));
+	storage = iseq->compile_data->storage_current = storage->next;
 	storage->next = 0;
 	storage->pos = 0;
 	storage->size = alloc_size;
-#ifdef STRICT_ALIGNMENT
-        padding = calc_padding((void *)&storage->buff[storage->pos], size);
-#endif /* STRICT_ALIGNMENT */
+	storage->buff = (char *)(&storage->buff + 1);
     }
 
-#ifdef STRICT_ALIGNMENT
-    storage->pos += (int)padding;
-#endif /* STRICT_ALIGNMENT */
-
     ptr = (void *)&storage->buff[storage->pos];
-    storage->pos += (int)size;
+    storage->pos += size;
     return ptr;
 }
 
@@ -896,17 +632,11 @@ compile_data_alloc_adjust(rb_iseq_t *iseq)
     return (ADJUST *)compile_data_alloc(iseq, sizeof(ADJUST));
 }
 
-static TRACE *
-compile_data_alloc_trace(rb_iseq_t *iseq)
-{
-    return (TRACE *)compile_data_alloc(iseq, sizeof(TRACE));
-}
-
 /*
  * elem1, elemX => elem1, elem2, elemX
  */
 static void
-ELEM_INSERT_NEXT(LINK_ELEMENT *elem1, LINK_ELEMENT *elem2)
+INSERT_ELEM_NEXT(LINK_ELEMENT *elem1, LINK_ELEMENT *elem2)
 {
     elem2->next = elem1->next;
     elem2->prev = elem1;
@@ -916,11 +646,12 @@ ELEM_INSERT_NEXT(LINK_ELEMENT *elem1, LINK_ELEMENT *elem2)
     }
 }
 
+#if 0 /* unused */
 /*
- * elem1, elemX => elemX, elem2, elem1
+ * elemX, elem1 => elemX, elem2, elem1
  */
 static void
-ELEM_INSERT_PREV(LINK_ELEMENT *elem1, LINK_ELEMENT *elem2)
+INSERT_ELEM_PREV(LINK_ELEMENT *elem1, LINK_ELEMENT *elem2)
 {
     elem2->prev = elem1->prev;
     elem2->next = elem1;
@@ -929,12 +660,13 @@ ELEM_INSERT_PREV(LINK_ELEMENT *elem1, LINK_ELEMENT *elem2)
 	elem2->prev->next = elem2;
     }
 }
+#endif
 
 /*
  * elemX, elem1, elemY => elemX, elem2, elemY
  */
 static void
-ELEM_REPLACE(LINK_ELEMENT *elem1, LINK_ELEMENT *elem2)
+REPLACE_ELEM(LINK_ELEMENT *elem1, LINK_ELEMENT *elem2)
 {
     elem2->prev = elem1->prev;
     elem2->next = elem1->next;
@@ -947,7 +679,7 @@ ELEM_REPLACE(LINK_ELEMENT *elem1, LINK_ELEMENT *elem2)
 }
 
 static void
-ELEM_REMOVE(LINK_ELEMENT *elem)
+REMOVE_ELEM(LINK_ELEMENT *elem)
 {
     elem->prev->next = elem->next;
     if (elem->next) {
@@ -956,19 +688,21 @@ ELEM_REMOVE(LINK_ELEMENT *elem)
 }
 
 static LINK_ELEMENT *
-FIRST_ELEMENT(const LINK_ANCHOR *const anchor)
+FIRST_ELEMENT(LINK_ANCHOR *anchor)
 {
     return anchor->anchor.next;
 }
 
+#if 0 /* unused */
 static LINK_ELEMENT *
-LAST_ELEMENT(LINK_ANCHOR *const anchor)
+LAST_ELEMENT(LINK_ANCHOR *anchor)
 {
-    return anchor->last;
+  return anchor->last;
 }
+#endif
 
 static LINK_ELEMENT *
-POP_ELEMENT(ISEQ_ARG_DECLARE LINK_ANCHOR *const anchor)
+POP_ELEMENT(ISEQ_ARG_DECLARE LINK_ANCHOR *anchor)
 {
     LINK_ELEMENT *elem = anchor->last;
     anchor->last = anchor->last->prev;
@@ -980,42 +714,40 @@ POP_ELEMENT(ISEQ_ARG_DECLARE LINK_ANCHOR *const anchor)
 #define POP_ELEMENT(anchor) POP_ELEMENT(iseq, (anchor))
 #endif
 
+#if 0 /* unused */
 static LINK_ELEMENT *
-ELEM_FIRST_INSN(LINK_ELEMENT *elem)
+SHIFT_ELEMENT(LINK_ANCHOR *anchor)
 {
-    while (elem) {
-	switch (elem->type) {
-	  case ISEQ_ELEMENT_INSN:
-	  case ISEQ_ELEMENT_ADJUST:
-	    return elem;
-	  default:
-	    elem = elem->next;
-	}
+    LINK_ELEMENT *elem = anchor->anchor.next;
+    if (elem) {
+	anchor->anchor.next = elem->next;
     }
-    return NULL;
+    return elem;
 }
+#endif
 
+#if 0 /* unused */
 static int
-LIST_INSN_SIZE_ONE(const LINK_ANCHOR *const anchor)
+LIST_SIZE(LINK_ANCHOR *anchor)
 {
-    LINK_ELEMENT *first_insn = ELEM_FIRST_INSN(FIRST_ELEMENT(anchor));
-    if (first_insn != NULL &&
-	ELEM_FIRST_INSN(first_insn->next) == NULL) {
-	return TRUE;
-    }
-    else {
-	return FALSE;
+    LINK_ELEMENT *elem = anchor->anchor.next;
+    int size = 0;
+    while (elem) {
+	size += 1;
+	elem = elem->next;
     }
+    return size;
 }
+#endif
 
 static int
-LIST_INSN_SIZE_ZERO(const LINK_ANCHOR *const anchor)
+LIST_SIZE_ZERO(LINK_ANCHOR *anchor)
 {
-    if (ELEM_FIRST_INSN(FIRST_ELEMENT(anchor)) == NULL) {
-	return TRUE;
+    if (anchor->anchor.next == 0) {
+	return 1;
     }
     else {
-	return FALSE;
+	return 0;
     }
 }
 
@@ -1027,7 +759,7 @@ LIST_INSN_SIZE_ZERO(const LINK_ANCHOR *const anchor)
  * anc2: e4, e5 (broken)
  */
 static void
-APPEND_LIST(ISEQ_ARG_DECLARE LINK_ANCHOR *const anc1, LINK_ANCHOR *const anc2)
+APPEND_LIST(ISEQ_ARG_DECLARE LINK_ANCHOR *anc1, LINK_ANCHOR *anc2)
 {
     if (anc2->anchor.next) {
 	anc1->last->next = anc2->anchor.next;
@@ -1048,7 +780,7 @@ APPEND_LIST(ISEQ_ARG_DECLARE LINK_ANCHOR *const anc1, LINK_ANCHOR *const anc2)
  * anc2: e4, e5 (broken)
  */
 static void
-INSERT_LIST(ISEQ_ARG_DECLARE LINK_ANCHOR *const anc1, LINK_ANCHOR *const anc2)
+INSERT_LIST(ISEQ_ARG_DECLARE LINK_ANCHOR *anc1, LINK_ANCHOR *anc2)
 {
     if (anc2->anchor.next) {
 	LINK_ELEMENT *first = anc1->anchor.next;
@@ -1069,9 +801,68 @@ INSERT_LIST(ISEQ_ARG_DECLARE LINK_ANCHOR *const anc1, LINK_ANCHOR *const 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 *const anchor)
+debug_list(ISEQ_ARG_DECLARE LINK_ANCHOR *anchor)
 {
     LINK_ELEMENT *list = FIRST_ELEMENT(anchor);
     printf("----\n");
@@ -1090,22 +881,8 @@ debug_list(ISEQ_ARG_DECLARE LINK_ANCHOR *const anchor)
 #if CPDEBUG < 0
 #define debug_list(anc) debug_list(iseq, (anc))
 #endif
-#else
-#define debug_list(anc) ((void)0)
 #endif
 
-static TRACE *
-new_trace_body(rb_iseq_t *iseq, rb_event_flag_t event)
-{
-    TRACE *trace = compile_data_alloc_trace(iseq);
-
-    trace->link.type = ISEQ_ELEMENT_TRACE;
-    trace->link.next = NULL;
-    trace->event = event;
-
-    return trace;
-}
-
 static LABEL *
 new_label_body(rb_iseq_t *iseq, long line)
 {
@@ -1114,13 +891,9 @@ 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(iseq)->label_no++;
+    labelobj->label_no = iseq->compile_data->label_no++;
     labelobj->sc_state = 0;
     labelobj->sp = -1;
-    labelobj->refcnt = 0;
-    labelobj->set = 0;
-    labelobj->rescued = LABEL_RESCUE_NONE;
-    labelobj->unremovable = 0;
     return labelobj;
 }
 
@@ -1132,7 +905,6 @@ new_adjust_body(rb_iseq_t *iseq, LABEL *label, int line)
     adjust->link.next = 0;
     adjust->label = label;
     adjust->line_no = line;
-    LABEL_UNREMOVABLE(label);
     return adjust;
 }
 
@@ -1141,14 +913,12 @@ new_insn_core(rb_iseq_t *iseq, int line_no,
 	      int insn_id, int argc, VALUE *argv)
 {
     INSN *iobj = compile_data_alloc_insn(iseq);
-
     /* printf("insn_id: %d, line: %d\n", insn_id, line_no); */
 
     iobj->link.type = ISEQ_ELEMENT_INSN;
     iobj->link.next = 0;
     iobj->insn_id = insn_id;
-    iobj->insn_info.line_no = line_no;
-    iobj->insn_info.events = 0;
+    iobj->line_no = line_no;
     iobj->operands = argv;
     iobj->operand_size = argc;
     iobj->sc_state = 0;
@@ -1156,7 +926,7 @@ new_insn_core(rb_iseq_t *iseq, int line_no,
 }
 
 static INSN *
-new_insn_body(rb_iseq_t *iseq, int line_no, enum ruby_vminsn_type insn_id, int argc, ...)
+new_insn_body(rb_iseq_t *iseq, int line_no, int insn_id, int argc, ...)
 {
     VALUE *operands = 0;
     va_list argv;
@@ -1173,65 +943,61 @@ new_insn_body(rb_iseq_t *iseq, int line_no, enum ruby_vminsn_type insn_id, int a
     return new_insn_core(iseq, line_no, insn_id, argc, operands);
 }
 
-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)
+static rb_call_info_t *
+new_callinfo(rb_iseq_t *iseq, ID mid, int argc, VALUE block, unsigned long flag)
 {
-    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;
-
+    rb_call_info_t *ci = (rb_call_info_t *)compile_data_alloc(iseq, sizeof(rb_call_info_t));
     ci->mid = mid;
     ci->flag = flag;
     ci->orig_argc = argc;
+    ci->argc = argc;
 
-    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++;
+    if (block) {
+	GetISeqPtr(block, ci->blockiseq);
     }
     else {
-	iseq->body->ci_size++;
+	ci->blockiseq = 0;
+	if (!(ci->flag & (VM_CALL_ARGS_SPLAT | VM_CALL_ARGS_BLOCKARG))) {
+	    ci->flag |= VM_CALL_ARGS_SKIP_SETUP;
+	}
     }
+    ci->method_serial = 0;
+    ci->class_serial = 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 | VM_CALL_KW_SPLAT)) &&
-	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, ID id, VALUE argc, const rb_iseq_t *blockiseq, VALUE flag, struct rb_call_info_kw_arg *keywords)
+new_insn_send(rb_iseq_t *iseq, int line_no, VALUE id, VALUE argc, VALUE block, VALUE flag)
 {
-    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);
+    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);
 }
 
-static rb_iseq_t *
-new_child_iseq(rb_iseq_t *iseq, const NODE *const node,
-	       VALUE name, const rb_iseq_t *parent, enum iseq_type type, int line_no)
+static VALUE
+new_child_iseq(rb_iseq_t *iseq, NODE *node,
+	       VALUE name, VALUE parent, enum iseq_type type, int line_no)
 {
-    rb_iseq_t *ret_iseq;
+    VALUE ret;
 
     debugs("[new_child_iseq]> ---------------------------------------\n");
-    ret_iseq = rb_iseq_new_with_opt(node, name,
-				    rb_iseq_path(iseq), rb_iseq_realpath(iseq),
-				    INT2FIX(line_no), parent, type, ISEQ_COMPILE_DATA(iseq)->option);
+    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);
     debugs("[new_child_iseq]< ---------------------------------------\n");
-    iseq_add_mark_object(iseq, (VALUE)ret_iseq);
-    return ret_iseq;
+    iseq_add_mark_object(iseq, ret);
+    return ret;
 }
 
 static int
-iseq_setup(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
+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)
@@ -1243,14 +1009,14 @@ iseq_setup(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
     if (compile_debug > 5)
 	dump_disasm_list(FIRST_ELEMENT(anchor));
 
-    if (ISEQ_COMPILE_DATA(iseq)->option->instructions_unification) {
+    if (iseq->compile_data->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(iseq)->option->stack_caching) {
+    if (iseq->compile_data->option->stack_caching) {
 	debugs("[compile step 3.3 (iseq_set_sequence_stackcaching)]\n");
 	iseq_set_sequence_stackcaching(iseq, anchor);
 	if (compile_debug > 5)
@@ -1258,72 +1024,70 @@ iseq_setup(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
     }
 
     debugs("[compile step 4.1 (iseq_set_sequence)]\n");
-    if (!iseq_set_sequence(iseq, anchor)) return COMPILE_NG;
+    iseq_set_sequence(iseq, anchor);
     if (compile_debug > 5)
 	dump_disasm_list(FIRST_ELEMENT(anchor));
 
     debugs("[compile step 4.2 (iseq_set_exception_table)]\n");
-    if (!iseq_set_exception_table(iseq)) return COMPILE_NG;
+    iseq_set_exception_table(iseq);
 
     debugs("[compile step 4.3 (set_optargs_table)] \n");
-    if (!iseq_set_optargs_table(iseq)) return COMPILE_NG;
+    iseq_set_optargs_table(iseq);
 
     debugs("[compile step 5 (iseq_translate_threaded_code)] \n");
-    if (!rb_iseq_translate_threaded_code(iseq)) return COMPILE_NG;
+    rb_iseq_translate_threaded_code(iseq);
 
     if (compile_debug > 1) {
-	VALUE str = rb_iseq_disasm(iseq);
+	VALUE str = rb_iseq_disasm(iseq->self);
 	printf("%s\n", StringValueCStr(str));
+	fflush(stdout);
     }
     debugs("[compile step: finish]\n");
 
-    return COMPILE_OK;
+    return 0;
 }
 
 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->body->local_table_size = 1;
-    ids[0] = id_dollar_bang;
-    iseq->body->local_table = ids;
+    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;
     return COMPILE_OK;
 }
 
 static int
-get_lvar_level(const rb_iseq_t *iseq)
+get_lvar_level(rb_iseq_t *iseq)
 {
     int lev = 0;
-    while (iseq != iseq->body->local_iseq) {
+    while (iseq != iseq->local_iseq) {
 	lev++;
-	iseq = iseq->body->parent_iseq;
+	iseq = iseq->parent_iseq;
     }
     return lev;
 }
 
 static int
-get_dyna_var_idx_at_raw(const rb_iseq_t *iseq, ID id)
+get_dyna_var_idx_at_raw(rb_iseq_t *iseq, ID id)
 {
-    unsigned int i;
+    int i;
 
-    for (i = 0; i < iseq->body->local_table_size; i++) {
-	if (iseq->body->local_table[i] == id) {
-	    return (int)i;
+    for (i = 0; i < iseq->local_table_size; i++) {
+	if (iseq->local_table[i] == id) {
+	    return i;
 	}
     }
     return -1;
 }
 
 static int
-get_local_var_idx(const rb_iseq_t *iseq, ID id)
+get_local_var_idx(rb_iseq_t *iseq, ID id)
 {
-    int idx = get_dyna_var_idx_at_raw(iseq->body->local_iseq, id);
+    int idx = get_dyna_var_idx_at_raw(iseq->local_iseq, id);
 
     if (idx < 0) {
 	rb_bug("get_local_var_idx: %d", idx);
@@ -1333,7 +1097,7 @@ get_local_var_idx(const rb_iseq_t *iseq, ID id)
 }
 
 static int
-get_dyna_var_idx(const rb_iseq_t *iseq, ID id, int *level, int *ls)
+get_dyna_var_idx(rb_iseq_t *iseq, ID id, int *level, int *ls)
 {
     int lv = 0, idx = -1;
 
@@ -1342,7 +1106,7 @@ get_dyna_var_idx(const rb_iseq_t *iseq, ID id, int *level, int *ls)
 	if (idx >= 0) {
 	    break;
 	}
-	iseq = iseq->body->parent_iseq;
+	iseq = iseq->parent_iseq;
 	lv++;
     }
 
@@ -1351,161 +1115,12 @@ get_dyna_var_idx(const rb_iseq_t *iseq, ID id, int *level, int *ls)
     }
 
     *level = lv;
-    *ls = iseq->body->local_table_size;
+    *ls = iseq->local_size;
     return idx;
 }
 
 static int
-iseq_local_block_param_p(const rb_iseq_t *iseq, unsigned int idx, unsigned int level)
-{
-    while (level > 0) {
-	iseq = iseq->body->parent_iseq;
-	level--;
-    }
-    if (iseq->body->local_iseq == iseq && /* local variables */
-	iseq->body->param.flags.has_block &&
-	iseq->body->local_table_size - iseq->body->param.block_start == idx) {
-	return TRUE;
-    }
-    else {
-	return FALSE;
-    }
-}
-
-static void
-iseq_add_getlocal(rb_iseq_t *iseq, LINK_ANCHOR *const seq, int line, int idx, int level)
-{
-    if (iseq_local_block_param_p(iseq, idx, level)) {
-	ADD_INSN2(seq, line, getblockparam, INT2FIX((idx) + VM_ENV_DATA_SIZE - 1), INT2FIX(level));
-    }
-    else {
-	ADD_INSN2(seq, line, getlocal, INT2FIX((idx) + VM_ENV_DATA_SIZE - 1), INT2FIX(level));
-    }
-}
-
-static void
-iseq_add_setlocal(rb_iseq_t *iseq, LINK_ANCHOR *const seq, int line, int idx, int level)
-{
-    if (iseq_local_block_param_p(iseq, idx, level)) {
-	ADD_INSN2(seq, line, setblockparam, INT2FIX((idx) + VM_ENV_DATA_SIZE - 1), INT2FIX(level));
-    }
-    else {
-	ADD_INSN2(seq, line, setlocal, INT2FIX((idx) + VM_ENV_DATA_SIZE - 1), INT2FIX(level));
-    }
-}
-
-
-
-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 *const optargs,
-			    const struct rb_args_info *args)
-{
-    const 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_cflag);
-
-    while (node) {
-	const NODE *val_node = node->nd_body->nd_value;
-	VALUE dv;
-
-	if (val_node == (const 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_POPPED(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_vid != 0) {
-	keyword->rest_start =  get_dyna_var_idx_at_raw(iseq, args->kw_rest_arg->nd_vid);
-	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 *const optargs, const NODE *const node_args)
+iseq_set_arguments(rb_iseq_t *iseq, LINK_ANCHOR *optargs, NODE *node_args)
 {
     debugs("iseq_set_arguments: %s\n", node_args ? "" : "0");
 
@@ -1515,11 +1130,14 @@ iseq_set_arguments(rb_iseq_t *iseq, LINK_ANCHOR *const optargs, const NODE *cons
 	int last_comma = 0;
 	ID block_id = 0;
 
-	EXPECT_NODE("iseq_set_arguments", node_args, NODE_ARGS, COMPILE_NG);
+	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)));
+	}
+
 
-	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);
+	iseq->argc = (int)args->pre_args_num;
+	debugs("  - argc: %d\n", iseq->argc);
 
 	rest_id = args->rest_arg;
 	if (rest_id == 1) {
@@ -1529,23 +1147,21 @@ iseq_set_arguments(rb_iseq_t *iseq, LINK_ANCHOR *const optargs, const NODE *cons
 	block_id = args->block_arg;
 
 	if (args->first_post_arg) {
-	    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;
+	    iseq->arg_post_start = get_dyna_var_idx_at_raw(iseq, args->first_post_arg);
+	    iseq->arg_post_len = args->post_args_num;
 	}
 
 	if (args->opt_args) {
-	    const NODE *node = 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) {
 		label = NEW_LABEL(nd_line(node));
 		rb_ary_push(labels, (VALUE)label | 1);
 		ADD_LABEL(optargs, label);
-		COMPILE_POPPED(optargs, "optarg", node->nd_body);
+		COMPILE_POPED(optargs, "optarg", node->nd_body);
 		node = node->nd_next;
 		i += 1;
 	    }
@@ -1554,79 +1170,139 @@ iseq_set_arguments(rb_iseq_t *iseq, LINK_ANCHOR *const optargs, const NODE *cons
 	    label = NEW_LABEL(nd_line(node_args));
 	    rb_ary_push(labels, (VALUE)label | 1);
 	    ADD_LABEL(optargs, label);
+	    i += 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;
+	    iseq->arg_opts = i;
+	    iseq->arg_opt_table = ALLOC_N(VALUE, i);
+	    MEMCPY(iseq->arg_opt_table, RARRAY_CONST_PTR(labels), VALUE, i);
+	    for (j = 0; j < i; j++) {
+		iseq->arg_opt_table[j] &= ~1;
 	    }
 	    rb_ary_clear(labels);
-
-	    iseq->body->param.flags.has_opt = TRUE;
-	    iseq->body->param.opt_num = i;
-	    iseq->body->param.opt_table = opt_table;
+	}
+	else {
+	    iseq->arg_opts = 0;
 	}
 
 	if (args->kw_args) {
-	    iseq_set_arguments_keywords(iseq, optargs, args);
+	    NODE *node = args->kw_args;
+	    VALUE keywords = rb_ary_tmp_new(1);
+	    VALUE required = 0;
+	    int i = 0, j, r = 0;
+
+	    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) {
+		VALUE list = keywords;
+		if (node->nd_body->nd_value == (NODE *)-1) {
+		    ++r;
+		    if (!required) required = rb_ary_tmp_new(1);
+		    list = required;
+		}
+		rb_ary_push(list, 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_required = r;
+	    iseq->arg_keyword_table = ALLOC_N(ID, i);
+	    if (r) {
+		rb_ary_concat(required, keywords);
+		keywords = required;
+	    }
+	    for (j = 0; j < i; j++) {
+		iseq->arg_keyword_table[j] = FIX2INT(RARRAY_AREF(keywords, j));
+	    }
+	    ADD_INSN(optargs, nd_line(args->kw_args), pop);
 	}
 	else if (args->kw_rest_arg) {
-	    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;
+	    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;
 	}
 
 	if (args->pre_init) { /* m_init */
-	    COMPILE_POPPED(optargs, "init arguments (m)", args->pre_init);
+	    COMPILE_POPED(optargs, "init arguments (m)", args->pre_init);
 	}
 	if (args->post_init) { /* p_init */
-	    COMPILE_POPPED(optargs, "init arguments (p)", args->post_init);
+	    COMPILE_POPED(optargs, "init arguments (p)", args->post_init);
 	}
 
 	if (rest_id) {
-	    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);
+	    iseq->arg_rest = get_dyna_var_idx_at_raw(iseq, rest_id);
 
-	    if (iseq->body->param.post_start == 0) { /* TODO: why that? */
-		iseq->body->param.post_start = iseq->body->param.rest_start + 1;
+	    if (iseq->arg_rest == -1) {
+		rb_bug("arg_rest: -1");
+	    }
+
+	    if (iseq->arg_post_start == 0) {
+		iseq->arg_post_start = iseq->arg_rest + 1;
 	    }
 	}
 
 	if (block_id) {
-	    iseq->body->param.block_start = get_dyna_var_idx_at_raw(iseq, block_id);
-	    iseq->body->param.flags.has_block = TRUE;
+	    iseq->arg_block = get_dyna_var_idx_at_raw(iseq, block_id);
 	}
 
-	iseq_calc_param_size(iseq);
+	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;
 
-	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) {
+	    /* 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->param.lead_num == 1 && last_comma == 0) {
+	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) {
 		    /* {|a|} */
-		    iseq->body->param.flags.ambiguous_param0 = TRUE;
+		    iseq->arg_simple |= 0x02;
 		}
 	    }
 	}
     }
+    else {
+	iseq->arg_simple = 1;
+    }
 
     return COMPILE_OK;
 }
 
 static int
-iseq_set_local_table(rb_iseq_t *iseq, const ID *tbl)
+iseq_set_local_table(rb_iseq_t *iseq, ID *tbl)
 {
-    unsigned int size;
+    int size;
 
     if (tbl) {
-	size = (unsigned int)*tbl;
+	size = (int)*tbl;
 	tbl++;
     }
     else {
@@ -1634,13 +1310,21 @@ iseq_set_local_table(rb_iseq_t *iseq, const ID *tbl)
     }
 
     if (size > 0) {
-	ID *ids = (ID *)ALLOC_N(ID, size);
-	MEMCPY(ids, tbl, ID, size);
-	iseq->body->local_table = ids;
+	iseq->local_table = (ID *)ALLOC_N(ID, size);
+	MEMCPY(iseq->local_table, tbl, ID, size);
     }
-    iseq->body->local_table_size = size;
 
-    debugs("iseq_set_local_table: %u\n", iseq->body->local_table_size);
+    iseq->local_size = iseq->local_table_size = size;
+    iseq->local_size += 1;
+    /*
+      if (lfp == dfp ) { // top, class, method
+	  dfp[-1]: svar
+      else {             // block
+          dfp[-1]: cref
+      }
+     */
+
+    debugs("iseq_set_local_table: %d, %d\n", iseq->local_size, iseq->local_table_size);
     return COMPILE_OK;
 }
 
@@ -1691,254 +1375,75 @@ cdhash_set_label_i(VALUE key, VALUE val, void *ptr)
     return ST_CONTINUE;
 }
 
-
-static inline VALUE
-get_ivar_ic_value(rb_iseq_t *iseq,ID id)
-{
-    VALUE val;
-    struct rb_id_table *tbl = ISEQ_COMPILE_DATA(iseq)->ivar_cache_table;
-    if (tbl) {
-	if (rb_id_table_lookup(tbl,id,&val)) {
-	    return val;
-	}
-    }
-    else {
-	tbl = rb_id_table_create(1);
-	ISEQ_COMPILE_DATA(iseq)->ivar_cache_table = tbl;
-    }
-    val = INT2FIX(iseq->body->is_size++);
-    rb_id_table_insert(tbl,id,val);
-    return val;
-}
-
-#define BADINSN_DUMP(anchor, list, dest) \
-    dump_disasm_list_with_cursor(&anchor->anchor, list, dest)
-
-#define BADINSN_ERROR \
-    (xfree(generated_iseq), \
-     xfree(insns_info), \
-     BADINSN_DUMP(anchor, list, NULL), \
-     COMPILE_ERROR)
-
-static int
-fix_sp_depth(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
-{
-    int stack_max = 0, sp = 0, line = 0;
-    LINK_ELEMENT *list;
-
-    for (list = FIRST_ELEMENT(anchor); list; list = list->next) {
-	if (list->type == ISEQ_ELEMENT_LABEL) {
-	    LABEL *lobj = (LABEL *)list;
-	    lobj->set = TRUE;
-	}
-    }
-
-    for (list = FIRST_ELEMENT(anchor); list; list = list->next) {
-	switch (list->type) {
-	  case ISEQ_ELEMENT_INSN:
-	    {
-		int j, len, insn;
-		const char *types;
-		VALUE *operands;
-		INSN *iobj = (INSN *)list;
-
-		/* update sp */
-		sp = calc_sp_depth(sp, iobj);
-		if (sp < 0) {
-		    BADINSN_DUMP(anchor, list, NULL);
-		    COMPILE_ERROR(iseq, iobj->insn_info.line_no,
-				  "argument stack underflow (%d)", sp);
-		    return -1;
-		}
-		if (sp > stack_max) {
-		    stack_max = sp;
-		}
-
-		line = iobj->insn_info.line_no;
-		/* fprintf(stderr, "insn: %-16s, sp: %d\n", insn_name(iobj->insn_id), sp); */
-		operands = iobj->operands;
-		insn = iobj->insn_id;
-		types = insn_op_types(insn);
-		len = insn_len(insn);
-
-		/* operand check */
-		if (iobj->operand_size != len - 1) {
-		    /* printf("operand size miss! (%d, %d)\n", iobj->operand_size, len); */
-		    BADINSN_DUMP(anchor, list, NULL);
-		    COMPILE_ERROR(iseq, iobj->insn_info.line_no,
-				  "operand size miss! (%d for %d)",
-				  iobj->operand_size, len - 1);
-		    return -1;
-		}
-
-		for (j = 0; types[j]; j++) {
-		    if (types[j] == TS_OFFSET) {
-			/* label(destination position) */
-			LABEL *lobj = (LABEL *)operands[j];
-			if (!lobj->set) {
-			    BADINSN_DUMP(anchor, list, NULL);
-			    COMPILE_ERROR(iseq, iobj->insn_info.line_no,
-					  "unknown label: "LABEL_FORMAT, lobj->label_no);
-			    return -1;
-			}
-			if (lobj->sp == -1) {
-			    lobj->sp = sp;
-			}
-		    }
-		}
-		break;
-	    }
-	  case ISEQ_ELEMENT_LABEL:
-	    {
-		LABEL *lobj = (LABEL *)list;
-		if (lobj->sp == -1) {
-		    lobj->sp = sp;
-		}
-		else {
-		    sp = lobj->sp;
-		}
-		break;
-	    }
-	  case ISEQ_ELEMENT_TRACE:
-	    {
-		/* ignore */
-		break;
-	    }
-	  case ISEQ_ELEMENT_ADJUST:
-	    {
-		ADJUST *adjust = (ADJUST *)list;
-		int orig_sp = sp;
-
-		sp = adjust->label ? adjust->label->sp : 0;
-		if (adjust->line_no != -1 && orig_sp - sp < 0) {
-		    BADINSN_DUMP(anchor, list, NULL);
-		    COMPILE_ERROR(iseq, adjust->line_no,
-				  "iseq_set_sequence: adjust bug %d < %d",
-				  orig_sp, sp);
-		    return -1;
-		}
-		break;
-	    }
-	  default:
-	    BADINSN_DUMP(anchor, list, NULL);
-	    COMPILE_ERROR(iseq, line, "unknown list type: %d", list->type);
-	    return -1;
-	}
-    }
-    return stack_max;
-}
-
-static int
-add_insn_info(struct iseq_insn_info_entry *insns_info, int insns_info_index, int code_index, LINK_ELEMENT *list)
-{
-    if (list->type == ISEQ_ELEMENT_INSN) {
-	INSN *iobj = (INSN *)list;
-	if (insns_info_index == 0 ||
-	    insns_info[insns_info_index-1].line_no != iobj->insn_info.line_no ||
-	    insns_info[insns_info_index-1].events  != iobj->insn_info.events) {
-	    insns_info[insns_info_index].position   = code_index;
-	    insns_info[insns_info_index].line_no    = iobj->insn_info.line_no;
-	    insns_info[insns_info_index].events     = iobj->insn_info.events;
-	    return TRUE;
-	}
-	else {
-	    return FALSE;
-	}
-    }
-    else if (list->type == ISEQ_ELEMENT_ADJUST) {
-	ADJUST *adjust = (ADJUST *)list;
-	if (insns_info_index > 0 ||
-	    insns_info[insns_info_index-1].line_no != adjust->line_no) {
-	    insns_info[insns_info_index].position   = code_index;
-	    insns_info[insns_info_index].line_no    = adjust->line_no;
-	    insns_info[insns_info_index].events     = 0;
-	    return TRUE;
-	}
-	else {
-	    return FALSE;
-	}
-    }
-    else {
-	VM_UNREACHABLE(add_insn_info);
-    }
-}
-
 /**
   ruby insn object list -> raw instruction sequence
  */
 static int
-iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
+iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
 {
-    struct iseq_insn_info_entry *insns_info;
+    LABEL *lobj;
+    INSN *iobj;
+    struct iseq_line_info_entry *line_info_table;
+    unsigned int last_line = 0;
     LINK_ELEMENT *list;
     VALUE *generated_iseq;
-    rb_event_flag_t events = 0;
 
-    int insn_num, code_index, insns_info_index, sp = 0;
-    int stack_max = fix_sp_depth(iseq, anchor);
+    int k, pos, sp, stack_max = 0, line = 0;
 
-    if (stack_max < 0) return COMPILE_NG;
-
-    /* fix label position */
+    /* set label position */
     list = FIRST_ELEMENT(anchor);
-    insn_num = code_index = 0;
+    k = pos = 0;
     while (list) {
 	switch (list->type) {
 	  case ISEQ_ELEMENT_INSN:
 	    {
-		INSN *iobj = (INSN *)list;
-		/* update sp */
-		sp = calc_sp_depth(sp, iobj);
-		code_index += insn_data_length(iobj);
-		insn_num++;
-		iobj->insn_info.events |= events;
-		events = 0;
+		iobj = (INSN *)list;
+		line = iobj->line_no;
+		pos += insn_data_length(iobj);
+		k++;
 		break;
 	    }
 	  case ISEQ_ELEMENT_LABEL:
 	    {
-		LABEL *lobj = (LABEL *)list;
-		lobj->position = code_index;
-		sp = lobj->sp;
+		lobj = (LABEL *)list;
+		lobj->position = pos;
+		lobj->set = TRUE;
 		break;
 	    }
-	  case ISEQ_ELEMENT_TRACE:
+	  case ISEQ_ELEMENT_NONE:
 	    {
-		TRACE *trace = (TRACE *)list;
-		events |= trace->event;
+		/* ignore */
 		break;
 	    }
 	  case ISEQ_ELEMENT_ADJUST:
 	    {
 		ADJUST *adjust = (ADJUST *)list;
 		if (adjust->line_no != -1) {
-		    int orig_sp = sp;
-		    sp = adjust->label ? adjust->label->sp : 0;
-		    if (orig_sp - sp > 0) {
-			if (orig_sp - sp > 1) code_index++; /* 1 operand */
-			code_index++; /* insn */
-			insn_num++;
-		    }
+		    pos += 2 /* insn + 1 operand */;
+		    k++;
 		}
 		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;
 	}
 	list = list->next;
     }
 
     /* make instruction sequence */
-    generated_iseq = ALLOC_N(VALUE, code_index);
-    insns_info = ALLOC_N(struct iseq_insn_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);
-    MEMZERO(iseq->body->ci_entries + iseq->body->ci_size, struct rb_call_info_with_kwarg,  iseq->body->ci_kw_size); /* need to clear ci_kw entries */
-    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;
+    generated_iseq = ALLOC_N(VALUE, pos);
+    line_info_table = ALLOC_N(struct iseq_line_info_entry, k);
+    iseq->is_entries = ALLOC_N(union iseq_inline_storage_entry, iseq->is_size);
+    MEMZERO(iseq->is_entries, union iseq_inline_storage_entry, iseq->is_size);
+    iseq->callinfo_entries = ALLOC_N(rb_call_info_t, iseq->callinfo_size);
+    /* MEMZERO(iseq->callinfo_entries, rb_call_info_t, iseq->callinfo_size); */
 
     list = FIRST_ELEMENT(anchor);
-    insns_info_index = code_index = sp = 0;
+    k = pos = sp = 0;
 
     while (list) {
 	switch (list->type) {
@@ -1947,17 +1452,34 @@ iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
 		int j, len, insn;
 		const char *types;
 		VALUE *operands;
-		INSN *iobj = (INSN *)list;
+
+		iobj = (INSN *)list;
 
 		/* update sp */
 		sp = calc_sp_depth(sp, iobj);
+		if (sp > stack_max) {
+		    stack_max = sp;
+		}
+
 		/* fprintf(stderr, "insn: %-16s, sp: %d\n", insn_name(iobj->insn_id), sp); */
 		operands = iobj->operands;
 		insn = iobj->insn_id;
-		generated_iseq[code_index] = insn;
+		generated_iseq[pos] = insn;
 		types = insn_op_types(insn);
 		len = insn_len(insn);
 
+		/* operand check */
+		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;
+		}
+
 		for (j = 0; types[j]; j++) {
 		    char type = types[j];
 		    /* printf("--> [%c - (%d-%d)]\n", type, k, j); */
@@ -1965,8 +1487,15 @@ iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
 		      case TS_OFFSET:
 			{
 			    /* label(destination position) */
-			    LABEL *lobj = (LABEL *)operands[j];
-			    generated_iseq[code_index + 1 + j] = lobj->position - (code_index + len);
+			    lobj = (LABEL *)operands[j];
+			    if (!lobj->set) {
+				rb_compile_error(RSTRING_PTR(iseq->location.path), iobj->line_no,
+						 "unknown label");
+			    }
+			    if (lobj->sp == -1) {
+				lobj->sp = sp;
+			    }
+			    generated_iseq[pos + 1 + j] = lobj->position - (pos + len);
 			    break;
 			}
 		      case TS_CDHASH:
@@ -1974,97 +1503,93 @@ iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
 			    VALUE map = operands[j];
 			    struct cdhash_set_label_struct data;
                             data.hash = map;
-                            data.pos = code_index;
+                            data.pos = pos;
                             data.len = len;
 			    rb_hash_foreach(map, cdhash_set_label_i, (VALUE)&data);
 
-			    rb_hash_rehash(map);
-			    freeze_hide_obj(map);
-			    generated_iseq[code_index + 1 + j] = map;
+			    hide_obj(map);
+			    generated_iseq[pos + 1 + j] = map;
 			    break;
 			}
 		      case TS_LINDEX:
 		      case TS_NUM:	/* ulong */
-			generated_iseq[code_index + 1 + j] = FIX2INT(operands[j]);
+			generated_iseq[pos + 1 + j] = FIX2INT(operands[j]);
 			break;
 		      case TS_ISEQ:	/* iseq */
 			{
 			    VALUE v = operands[j];
-			    generated_iseq[code_index + 1 + j] = v;
+			    rb_iseq_t *block = 0;
+			    if (v) {
+				GetISeqPtr(v, block);
+			    }
+			    generated_iseq[pos + 1 + j] = (VALUE)block;
 			    break;
 			}
 		      case TS_VALUE:	/* VALUE */
 			{
 			    VALUE v = operands[j];
-			    generated_iseq[code_index + 1 + j] = v;
+			    generated_iseq[pos + 1 + j] = v;
 			    /* to mark ruby object */
 			    iseq_add_mark_object(iseq, v);
 			    break;
 			}
 		      case TS_IC: /* inline cache */
 			{
-			    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);
+			    int ic_index = FIX2INT(operands[j]);
+			    IC ic = (IC)&iseq->is_entries[ic_index];
+			    if (UNLIKELY(ic_index >= iseq->is_size)) {
+				rb_bug("iseq_set_sequence: ic_index overflow: index: %d, size: %d", ic_index, iseq->is_size);
 			    }
-			    generated_iseq[code_index + 1 + j] = (VALUE)ic;
+			    generated_iseq[pos + 1 + j] = (VALUE)ic;
 			    break;
 			}
 		      case TS_CALLINFO: /* call info */
 			{
-			    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);
-			    }
-			    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);
-			    }
+			    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;
 
-			    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;
+			    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);
+			    }
+			    generated_iseq[pos + 1 + j] = (VALUE)ci;
 			    break;
 			}
 		      case TS_ID: /* ID */
-			generated_iseq[code_index + 1 + j] = SYM2ID(operands[j]);
+			generated_iseq[pos + 1 + j] = SYM2ID(operands[j]);
 			break;
 		      case TS_GENTRY:
 			{
 			    struct rb_global_entry *entry =
 				(struct rb_global_entry *)(operands[j] & (~1));
-			    generated_iseq[code_index + 1 + j] = (VALUE)entry;
+			    generated_iseq[pos + 1 + j] = (VALUE)entry;
 			}
 			break;
-		      case TS_FUNCPTR:
-			generated_iseq[code_index + 1 + j] = operands[j];
-			break;
 		      default:
-			BADINSN_ERROR(iseq, iobj->insn_info.line_no,
-				      "unknown operand type: %c", type);
-			return COMPILE_NG;
+			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;
 		    }
 		}
-		if (add_insn_info(insns_info, insns_info_index, code_index, (LINK_ELEMENT *)iobj)) insns_info_index++;
-		code_index += len;
+		if (last_line != iobj->line_no) {
+		    line_info_table[k].line_no = last_line = iobj->line_no;
+		    line_info_table[k].position = pos;
+		    k++;
+		}
+		pos += len;
 		break;
 	    }
 	  case ISEQ_ELEMENT_LABEL:
 	    {
-		LABEL *lobj = (LABEL *)list;
-		sp = lobj->sp;
+		lobj = (LABEL *)list;
+		if (lobj->sp == -1) {
+		    lobj->sp = sp;
+		}
+		else {
+		    sp = lobj->sp;
+		}
 		break;
 	    }
 	  case ISEQ_ELEMENT_ADJUST:
@@ -2080,26 +1605,27 @@ iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
 		}
 
 		if (adjust->line_no != -1) {
-		    const int diff = orig_sp - sp;
-		    if (diff > 0) {
-			if (add_insn_info(insns_info, insns_info_index, code_index, (LINK_ELEMENT *)adjust)) insns_info_index++;
-		    }
-		    if (diff > 1) {
-			generated_iseq[code_index++] = BIN(adjuststack);
-			generated_iseq[code_index++] = orig_sp - sp;
+		    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++;
+			}
+			generated_iseq[pos++] = BIN(adjuststack);
+			generated_iseq[pos++] = orig_sp - sp;
 		    }
-		    else if (diff == 1) {
-			generated_iseq[code_index++] = BIN(pop);
+		    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++;
+			}
+			generated_iseq[pos++] = BIN(jump);
+			generated_iseq[pos++] = 0;
 		    }
-		    else if (diff < 0) {
-			int label_no = adjust->label ? adjust->label->label_no : -1;
-			xfree(generated_iseq);
-			xfree(insns_info);
-			debug_list(anchor);
-			COMPILE_ERROR(iseq, adjust->line_no,
-				      "iseq_set_sequence: adjust bug to %d %d < %d",
-				      label_no, orig_sp, sp);
-			return COMPILE_NG;
+		    else {
+			rb_bug("iseq_set_sequence: adjust bug");
 		    }
 		}
 		break;
@@ -2111,16 +1637,20 @@ iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
 	list = list->next;
     }
 
-    iseq->body->iseq_encoded = (void *)generated_iseq;
-    iseq->body->iseq_size = code_index;
-    iseq->body->stack_max = stack_max;
+#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
 
-    /* get rid of memory leak when REALLOC failed */
-    iseq->body->insns_info = insns_info;
+    iseq->iseq = (void *)generated_iseq;
+    iseq->iseq_size = pos;
+    iseq->stack_max = stack_max;
 
-    REALLOC_N(insns_info, struct iseq_insn_info_entry, insns_info_index);
-    iseq->body->insns_info = insns_info;
-    iseq->body->insns_info_size = insns_info_index;
+    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;
 
     return COMPILE_OK;
 }
@@ -2141,53 +1671,47 @@ static int
 iseq_set_exception_table(rb_iseq_t *iseq)
 {
     const VALUE *tptr, *ptr;
-    unsigned int tlen, i;
+    int tlen, i;
     struct iseq_catch_table_entry *entry;
 
-    tlen = (int)RARRAY_LEN(ISEQ_COMPILE_DATA(iseq)->catch_table_ary);
-    tptr = RARRAY_CONST_PTR(ISEQ_COMPILE_DATA(iseq)->catch_table_ary);
+    tlen = (int)RARRAY_LEN(iseq->compile_data->catch_table_ary);
+    tptr = RARRAY_CONST_PTR(iseq->compile_data->catch_table_ary);
 
-    if (tlen > 0) {
-	struct iseq_catch_table *table = xmalloc(iseq_catch_table_bytes(tlen));
-	table->size = tlen;
+    iseq->catch_table = tlen ? ALLOC_N(struct iseq_catch_table_entry, tlen) : 0;
+    iseq->catch_table_size = tlen;
 
-	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];
+    for (i = 0; i < tlen; i++) {
+	ptr = RARRAY_CONST_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];
 
-	    /* register iseq as mark object */
-	    if (entry->iseq != 0) {
-		iseq_add_mark_object(iseq, (VALUE)entry->iseq);
-	    }
+	/* 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);
-
-		/* 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;
+	/* 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--;
 	    }
 	}
-	iseq->body->catch_table = table;
-	RB_OBJ_WRITE(iseq, &ISEQ_COMPILE_DATA(iseq)->catch_table_ary, 0); /* free */
-    }
-    else {
-	iseq->body->catch_table = NULL;
+	else {
+	    entry->cont = 0;
+	}
     }
 
+    OBJ_WRITE(iseq->self, &iseq->compile_data->catch_table_ary, 0); /* free */
     return COMPILE_OK;
 }
 
@@ -2204,11 +1728,11 @@ static int
 iseq_set_optargs_table(rb_iseq_t *iseq)
 {
     int i;
-    VALUE *opt_table = (VALUE *)iseq->body->param.opt_table;
 
-    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]);
+    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]);
 	}
     }
     return COMPILE_OK;
@@ -2219,31 +1743,14 @@ get_destination_insn(INSN *iobj)
 {
     LABEL *lobj = (LABEL *)OPERAND_AT(iobj, 0);
     LINK_ELEMENT *list;
-    rb_event_flag_t events = 0;
 
     list = lobj->link.next;
     while (list) {
-	switch (list->type) {
-	  case ISEQ_ELEMENT_INSN:
-	  case ISEQ_ELEMENT_ADJUST:
-	    goto found;
-	  case ISEQ_ELEMENT_LABEL:
-	    /* ignore */
-	    break;
-	  case ISEQ_ELEMENT_TRACE:
-	    {
-		TRACE *trace = (TRACE *)list;
-		events |= trace->event;
-	    }
+	if (list->type == ISEQ_ELEMENT_INSN || list->type == ISEQ_ELEMENT_ADJUST) {
 	    break;
 	}
 	list = list->next;
     }
-  found:
-    if (list && IS_INSN(list)) {
-	INSN *iobj = (INSN *)list;
-	iobj->insn_info.events |= events;
-    }
     return list;
 }
 
@@ -2253,7 +1760,7 @@ get_next_insn(INSN *iobj)
     LINK_ELEMENT *list = iobj->link.next;
 
     while (list) {
-	if (IS_INSN(list) || IS_ADJUST(list)) {
+	if (list->type == ISEQ_ELEMENT_INSN || list->type == ISEQ_ELEMENT_ADJUST) {
 	    return list;
 	}
 	list = list->next;
@@ -2267,7 +1774,7 @@ get_prev_insn(INSN *iobj)
     LINK_ELEMENT *list = iobj->link.prev;
 
     while (list) {
-	if (IS_INSN(list) || IS_ADJUST(list)) {
+	if (list->type == ISEQ_ELEMENT_INSN || list->type == ISEQ_ELEMENT_ADJUST) {
 	    return list;
 	}
 	list = list->prev;
@@ -2275,141 +1782,23 @@ get_prev_insn(INSN *iobj)
     return 0;
 }
 
-static void
-unref_destination(INSN *iobj, int pos)
-{
-    LABEL *lobj = (LABEL *)OPERAND_AT(iobj, pos);
-    --lobj->refcnt;
-    if (!lobj->refcnt) ELEM_REMOVE(&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) ELEM_REMOVE(&dl->link);
-}
-
-static LABEL*
-find_destination(INSN *i)
-{
-    int pos, len = insn_len(i->insn_id);
-    for (pos = 0; pos < len; ++pos) {
-	if (insn_op_types(i->insn_id)[pos] == TS_OFFSET) {
-	    return (LABEL *)OPERAND_AT(i, pos);
-	}
-    }
-    return 0;
-}
-
-static int
-remove_unreachable_chunk(rb_iseq_t *iseq, LINK_ELEMENT *i)
-{
-    LINK_ELEMENT *first = i, *end;
-    int *unref_counts = 0, nlabels = ISEQ_COMPILE_DATA(iseq)->label_no;
-
-    if (!i) return 0;
-    unref_counts = ALLOCA_N(int, nlabels);
-    MEMZERO(unref_counts, int, nlabels);
-    end = i;
-    do {
-	LABEL *lab;
-	if (IS_INSN(i)) {
-	    if (IS_INSN_ID(i, leave)) {
-		end = i;
-		break;
-	    }
-	    else if ((lab = find_destination((INSN *)i)) != 0) {
-		if (lab->unremovable) break;
-		unref_counts[lab->label_no]++;
-	    }
-	}
-	else if (IS_LABEL(i)) {
-	    lab = (LABEL *)i;
-	    if (lab->unremovable) return 0;
-	    if (lab->refcnt > unref_counts[lab->label_no]) {
-		if (i == first) return 0;
-		break;
-	    }
-	    continue;
-	}
-	else if (IS_TRACE(i)) {
-	    /* do nothing */
-	}
-	else if (IS_ADJUST(i)) {
-	    LABEL *dest = ((ADJUST *)i)->label;
-	    if (dest && dest->unremovable) return 0;
-	}
-	end = i;
-    } while ((i = i->next) != 0);
-    i = first;
-    do {
-	if (IS_INSN(i)) {
-	    struct rb_iseq_constant_body *body = iseq->body;
-	    VALUE insn = INSN_OF(i);
-	    int pos, len = insn_len(insn);
-	    for (pos = 0; pos < len; ++pos) {
-		switch (insn_op_types(insn)[pos]) {
-		  case TS_OFFSET:
-		    unref_destination((INSN *)i, pos);
-		    break;
-		  case TS_CALLINFO:
-		    if (((struct rb_call_info *)OPERAND_AT(i, pos))->flag & VM_CALL_KWARG)
-			--(body->ci_kw_size);
-		    else
-			--(body->ci_size);
-		    break;
-		}
-	    }
-	}
-	ELEM_REMOVE(i);
-    } while ((i != end) && (i = i->next) != 0);
-    return 1;
-}
-
-static int
-iseq_pop_newarray(rb_iseq_t *iseq, INSN *iobj)
-{
-    switch (OPERAND_AT(iobj, 0)) {
-      case INT2FIX(0): /* empty array */
-	ELEM_REMOVE(&iobj->link);
-	return TRUE;
-      case INT2FIX(1): /* single element array */
-	ELEM_REMOVE(&iobj->link);
-	return FALSE;
-      default:
-	iobj->insn_id = BIN(adjuststack);
-	return TRUE;
-    }
-}
-
-static int
-same_debug_pos_p(LINK_ELEMENT *iobj1, LINK_ELEMENT *iobj2)
-{
-    VALUE debug1 = OPERAND_AT(iobj1, 0);
-    VALUE debug2 = OPERAND_AT(iobj2, 0);
-    if (debug1 == debug2) return TRUE;
-    if (!RB_TYPE_P(debug1, T_ARRAY)) return FALSE;
-    if (!RB_TYPE_P(debug2, T_ARRAY)) return FALSE;
-    if (RARRAY_LEN(debug1) != 2) return FALSE;
-    if (RARRAY_LEN(debug2) != 2) return FALSE;
-    if (RARRAY_AREF(debug1, 0) != RARRAY_AREF(debug2, 0)) return FALSE;
-    if (RARRAY_AREF(debug1, 1) != RARRAY_AREF(debug2, 1)) return FALSE;
-    return TRUE;
-}
-
 static int
 iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcallopt)
 {
-    INSN *const iobj = (INSN *)list;
+    INSN *iobj = (INSN *)list;
   again:
-    if (IS_INSN_ID(iobj, jump)) {
+    if (iobj->insn_id == BIN(jump)) {
 	INSN *niobj, *diobj, *piobj;
+	/*
+	 *  useless jump elimination:
+	 *     jump LABEL1
+	 *     ...
+	 *   LABEL1:
+	 *     jump LABEL2
+	 *
+	 *   => in this case, first jump instruction should jump to
+	 *      LABEL2 directly
+	 */
 	diobj = (INSN *)get_destination_insn(iobj);
 	niobj = (INSN *)get_next_insn(iobj);
 
@@ -2420,28 +1809,15 @@ iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcal
 	     * =>
 	     *   LABEL:
 	     */
-	    unref_destination(iobj, 0);
-	    ELEM_REMOVE(&iobj->link);
-	    return COMPILE_OK;
+	    REMOVE_ELEM(&iobj->link);
 	}
-	else if (iobj != diobj && IS_INSN_ID(diobj, jump) &&
-		 OPERAND_AT(iobj, 0) != OPERAND_AT(diobj, 0)) {
-	    /*
-	     *  useless jump elimination:
-	     *     jump LABEL1
-	     *     ...
-	     *   LABEL1:
-	     *     jump LABEL2
-	     *
-	     *   => in this case, first jump instruction should jump to
-	     *      LABEL2 directly
-	     */
-	    replace_destination(iobj, diobj);
-	    remove_unreachable_chunk(iseq, iobj->link.next);
-	    goto again;
+	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 (IS_INSN_ID(diobj, leave)) {
-	    INSN *pop;
+	else if (diobj->insn_id == BIN(leave)) {
 	    /*
 	     *  jump LABEL
 	     *  ...
@@ -2449,108 +1825,47 @@ iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcal
 	     *  leave
 	     * =>
 	     *  leave
-	     *  pop
 	     *  ...
 	     * 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 */
-	    unref_destination(iobj, 0);
-	    iobj->insn_id = BIN(leave);
-	    iobj->operand_size = 0;
-	    iobj->insn_info = diobj->insn_info;
-	    /* adjust stack depth */
-	    pop = new_insn_body(iseq, diobj->insn_info.line_no, BIN(pop), 0);
-	    ELEM_INSERT_NEXT(&iobj->link, &pop->link);
-	    goto again;
+	    REPLACE_ELEM((LINK_ELEMENT *)iobj, (LINK_ELEMENT *)eiobj);
+	    INSERT_ELEM_NEXT((LINK_ELEMENT *)eiobj, (LINK_ELEMENT *)popiobj);
+	    iobj = popiobj;
 	}
+	/*
+	 * useless jump elimination (if/unless destination):
+	 *   if   L1
+	 *   jump L2
+	 * L1:
+	 *   ...
+	 * L2:
+	 *
+	 * ==>
+	 *   unless L2
+	 * L1:
+	 *   ...
+	 * L2:
+	 */
 	else if ((piobj = (INSN *)get_prev_insn(iobj)) != 0 &&
-		 (IS_INSN_ID(piobj, branchif) ||
-		  IS_INSN_ID(piobj, branchunless))) {
-	    INSN *pdiobj = (INSN *)get_destination_insn(piobj);
-	    if (niobj == pdiobj) {
-		/*
-		 * useless jump elimination (if/unless destination):
-		 *   if   L1
-		 *   jump L2
-		 * L1:
-		 *   ...
-		 * L2:
-		 *
-		 * ==>
-		 *   unless L2
-		 * L1:
-		 *   ...
-		 * L2:
-		 */
-		piobj->insn_id = (IS_INSN_ID(piobj, branchif))
+		 (piobj->insn_id == BIN(branchif) ||
+		  piobj->insn_id == BIN(branchunless))) {
+	    if (niobj == (INSN *)get_destination_insn(piobj)) {
+		piobj->insn_id = (piobj->insn_id == BIN(branchif))
 		  ? BIN(branchunless) : BIN(branchif);
-		replace_destination(piobj, iobj);
-		ELEM_REMOVE(&iobj->link);
-		return COMPILE_OK;
-	    }
-	    else if (diobj == pdiobj) {
-		/*
-		 * useless jump elimination (if/unless before jump):
-		 * L1:
-		 *   ...
-		 *   if   L1
-		 *   jump L1
-		 *
-		 * ==>
-		 * L1:
-		 *   ...
-		 *   pop
-		 *   jump L1
-		 */
-		INSN *popiobj = new_insn_core(iseq, iobj->insn_info.line_no,
-					      BIN(pop), 0, 0);
-		ELEM_REPLACE(&piobj->link, &popiobj->link);
+		OPERAND_AT(piobj, 0) = OPERAND_AT(iobj, 0);
+		REMOVE_ELEM(&iobj->link);
 	    }
 	}
-	if (remove_unreachable_chunk(iseq, iobj->link.next)) {
-	    goto again;
-	}
     }
 
-    /*
-     * putstring "beg"
-     * putstring "end"
-     * newrange excl
-     *
-     * ==>
-     *
-     * putobject "beg".."end"
-     */
-    if (IS_INSN_ID(iobj, checkmatch)) {
-	INSN *range = (INSN *)get_prev_insn(iobj);
-	INSN *beg, *end;
-
-	if (range && IS_INSN_ID(range, newrange) &&
-		(end = (INSN *)get_prev_insn(range)) != 0 &&
-		IS_INSN_ID(end, putstring) &&
-		(beg = (INSN *)get_prev_insn(end)) != 0 &&
-		IS_INSN_ID(beg, putstring)) {
-	    VALUE str_beg = OPERAND_AT(beg, 0);
-	    VALUE str_end = OPERAND_AT(end, 0);
-	    int excl = FIX2INT(OPERAND_AT(range, 0));
-	    VALUE lit_range = rb_range_new(str_beg, str_end, excl);
-
-	    iseq_add_mark_object_compile_time(iseq, lit_range);
-	    ELEM_REMOVE(&beg->link);
-	    ELEM_REMOVE(&end->link);
-	    range->insn_id = BIN(putobject);
-	    OPERAND_AT(range, 0) = lit_range;
-	}
-    }
-
-    if (IS_INSN_ID(iobj, leave)) {
-	remove_unreachable_chunk(iseq, iobj->link.next);
-    }
-
-    if (IS_INSN_ID(iobj, branchif) ||
-	IS_INSN_ID(iobj, branchnil) ||
-	IS_INSN_ID(iobj, branchunless)) {
+    if (iobj->insn_id == BIN(branchif) ||
+	iobj->insn_id == BIN(branchunless)) {
 	/*
 	 *   if L1
 	 *   ...
@@ -2560,232 +1875,12 @@ iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcal
 	 *   if L2
 	 */
 	INSN *nobj = (INSN *)get_destination_insn(iobj);
-	INSN *pobj = (INSN *)iobj->link.prev;
-	int prev_dup = 0;
-	if (pobj) {
-	    if (!IS_INSN(&pobj->link))
-		pobj = 0;
-	    else if (IS_INSN_ID(pobj, dup))
-		prev_dup = 1;
-	}
-
-	for (;;) {
-	    if (IS_INSN_ID(nobj, jump)) {
-		replace_destination(iobj, nobj);
-	    }
-	    else if (prev_dup && IS_INSN_ID(nobj, 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 && IS_INSN(pobj->link.prev)) {
-		    pobj = (INSN *)pobj->link.prev;
-		}
-		if (IS_INSN_ID(pobj, putobject)) {
-		    cond = (IS_INSN_ID(iobj, branchif) ?
-			    OPERAND_AT(pobj, 0) != Qfalse :
-			    IS_INSN_ID(iobj, branchunless) ?
-			    OPERAND_AT(pobj, 0) == Qfalse :
-			    FALSE);
-		}
-		else if (IS_INSN_ID(pobj, putstring) ||
-			 IS_INSN_ID(pobj, duparray) ||
-			 IS_INSN_ID(pobj, newarray)) {
-		    cond = IS_INSN_ID(iobj, branchif);
-		}
-		else if (IS_INSN_ID(pobj, putnil)) {
-		    cond = !IS_INSN_ID(iobj, branchif);
-		}
-		else break;
-		if (prev_dup || !IS_INSN_ID(pobj, newarray)) {
-		    ELEM_REMOVE(iobj->link.prev);
-		}
-		else if (!iseq_pop_newarray(iseq, pobj)) {
-		    pobj = new_insn_core(iseq, pobj->insn_info.line_no, BIN(pop), 0, NULL);
-		    ELEM_INSERT_NEXT(&iobj->link, &pobj->link);
-		}
-		if (cond) {
-		    iobj->insn_id = BIN(jump);
-		    goto again;
-		}
-		else {
-		    unref_destination(iobj, 0);
-		    ELEM_REMOVE(&iobj->link);
-		}
-		break;
-	    }
-	    else break;
-	    nobj = (INSN *)get_destination_insn(nobj);
-	}
-    }
-
-    if (IS_INSN_ID(iobj, pop)) {
-	/*
-	 *  putself / putnil / putobject obj / putstring "..."
-	 *  pop
-	 * =>
-	 *  # do nothing
-	 */
-	LINK_ELEMENT *prev = iobj->link.prev;
-	if (IS_INSN(prev)) {
-	    enum ruby_vminsn_type previ = ((INSN *)prev)->insn_id;
-	    if (previ == BIN(putobject) || previ == BIN(putnil) ||
-		previ == BIN(putself) || previ == BIN(putstring) ||
-		previ == BIN(duparray)) {
-		/* just push operand or static value and pop soon, no
-		 * side effects */
-		ELEM_REMOVE(prev);
-		ELEM_REMOVE(&iobj->link);
-	    }
-	    else if (previ == BIN(newarray) && iseq_pop_newarray(iseq, (INSN*)prev)) {
-		ELEM_REMOVE(&iobj->link);
-	    }
-	}
-    }
-
-    if (IS_INSN_ID(iobj, newarray) ||
-	IS_INSN_ID(iobj, duparray) ||
-	IS_INSN_ID(iobj, expandarray) ||
-	IS_INSN_ID(iobj, concatarray) ||
-	IS_INSN_ID(iobj, splatarray) ||
-	0) {
-	/*
-	 *  newarray N
-	 *  splatarray
-	 * =>
-	 *  newarray N
-	 * newarray always puts an array
-	 */
-	LINK_ELEMENT *next = iobj->link.next;
-	if (IS_INSN(next) && IS_INSN_ID(next, splatarray)) {
-	    /* remove splatarray following always-array insn */
-	    ELEM_REMOVE(next);
-	}
-    }
-
-    if (IS_INSN_ID(iobj, tostring)) {
-	LINK_ELEMENT *next = iobj->link.next;
-	/*
-	 *  tostring
-	 *  concatstrings 1
-	 * =>
-	 *  tostring
-	 */
-	if (IS_INSN(next) && IS_INSN_ID(next, concatstrings) &&
-	    OPERAND_AT(next, 0) == INT2FIX(1)) {
-	    ELEM_REMOVE(next);
-	}
-    }
-
-    if (IS_INSN_ID(iobj, putstring) ||
-	(IS_INSN_ID(iobj, putobject) && RB_TYPE_P(OPERAND_AT(iobj, 0), T_STRING))) {
-	/*
-	 *  putstring ""
-	 *  concatstrings N
-	 * =>
-	 *  concatstrings N-1
-	 */
-	if (IS_NEXT_INSN_ID(&iobj->link, concatstrings) &&
-	    RSTRING_LEN(OPERAND_AT(iobj, 0)) == 0) {
-	    INSN *next = (INSN *)iobj->link.next;
-	    if ((OPERAND_AT(next, 0) = FIXNUM_INC(OPERAND_AT(next, 0), -1)) == INT2FIX(1)) {
-		ELEM_REMOVE(&next->link);
-	    }
-	    ELEM_REMOVE(&iobj->link);
-	}
-    }
-
-    if (IS_INSN_ID(iobj, concatstrings)) {
-	/*
-	 *  concatstrings N
-	 *  concatstrings M
-	 * =>
-	 *  concatstrings N+M-1
-	 */
-	LINK_ELEMENT *next = iobj->link.next, *freeze = 0;
-	INSN *jump = 0;
-	if (IS_INSN(next) && IS_INSN_ID(next, freezestring))
-	    next = (freeze = next)->next;
-	if (IS_INSN(next) && IS_INSN_ID(next, jump))
-	    next = get_destination_insn(jump = (INSN *)next);
-	if (IS_INSN(next) && IS_INSN_ID(next, concatstrings)) {
-	    int n = FIX2INT(OPERAND_AT(iobj, 0)) + FIX2INT(OPERAND_AT(next, 0)) - 1;
-	    OPERAND_AT(iobj, 0) = INT2FIX(n);
-	    if (jump) {
-		LABEL *label = ((LABEL *)OPERAND_AT(jump, 0));
-		if (!--label->refcnt) {
-		    ELEM_REMOVE(&label->link);
-		}
-		else {
-		    label = NEW_LABEL(0);
-		    OPERAND_AT(jump, 0) = (VALUE)label;
-		}
-		label->refcnt++;
-		if (freeze && IS_NEXT_INSN_ID(next, freezestring)) {
-		    if (same_debug_pos_p(freeze, next->next)) {
-			ELEM_REMOVE(freeze);
-		    }
-		    else {
-			next = next->next;
-		    }
-		}
-		ELEM_INSERT_NEXT(next, &label->link);
-		CHECK(iseq_peephole_optimize(iseq, get_next_insn(jump), do_tailcallopt));
-	    }
-	    else {
-		if (freeze) ELEM_REMOVE(freeze);
-		ELEM_REMOVE(next);
-	    }
+	if (nobj->insn_id == BIN(jump)) {
+	    OPERAND_AT(iobj, 0) = OPERAND_AT(nobj, 0);
 	}
     }
 
-    if (do_tailcallopt &&
-	(IS_INSN_ID(iobj, send) ||
-	 IS_INSN_ID(iobj, opt_aref_with) ||
-	 IS_INSN_ID(iobj, opt_aset_with) ||
-	 IS_INSN_ID(iobj, invokesuper))) {
+    if (do_tailcallopt && iobj->insn_id == BIN(leave)) {
 	/*
 	 *  send ...
 	 *  leave
@@ -2793,102 +1888,34 @@ iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcal
 	 *  send ..., ... | VM_CALL_TAILCALL, ...
 	 *  leave # unreachable
 	 */
-	INSN *piobj = NULL;
-	if (iobj->link.next) {
-	    LINK_ELEMENT *next = iobj->link.next;
-	    do {
-		if (!IS_INSN(next)) {
-		    next = next->next;
-		    continue;
-		}
-		switch (INSN_OF(next)) {
-		  case BIN(nop):
-		    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);
-	}
+	INSN *piobj = (INSN *)get_prev_insn((INSN *)list);
+	enum ruby_vminsn_type previ = piobj->insn_id;
 
-	if (piobj) {
-	    struct rb_call_info *ci = (struct rb_call_info *)piobj->operands[0];
-	    if (IS_INSN_ID(piobj, send) || IS_INSN_ID(piobj, invokesuper)) {
-		if (piobj->operands[2] == 0) { /* no blockiseq */
-		    ci->flag |= VM_CALL_TAILCALL;
-		}
-	    }
-	    else {
+	if (previ == BIN(send) || previ == BIN(opt_send_simple) || previ == BIN(invokesuper)) {
+	    rb_call_info_t *ci = (rb_call_info_t *)piobj->operands[0];
+	    if (ci->blockiseq == 0) {
 		ci->flag |= VM_CALL_TAILCALL;
 	    }
 	}
     }
-
-    if (IS_INSN_ID(iobj, dup)) {
-	if (IS_NEXT_INSN_ID(&iobj->link, setlocal)) {
-	    LINK_ELEMENT *set1 = iobj->link.next, *set2 = NULL;
-	    if (IS_NEXT_INSN_ID(set1, setlocal)) {
-		set2 = set1->next;
-		if (OPERAND_AT(set1, 0) == OPERAND_AT(set2, 0) &&
-		    OPERAND_AT(set1, 1) == OPERAND_AT(set2, 1)) {
-		    ELEM_REMOVE(set1);
-		    ELEM_REMOVE(&iobj->link);
-		}
-	    }
-	    else if (IS_NEXT_INSN_ID(set1, dup) &&
-		     IS_NEXT_INSN_ID(set1->next, setlocal)) {
-		set2 = set1->next->next;
-		if (OPERAND_AT(set1, 0) == OPERAND_AT(set2, 0) &&
-		    OPERAND_AT(set1, 1) == OPERAND_AT(set2, 1)) {
-		    ELEM_REMOVE(set1->next);
-		    ELEM_REMOVE(set2);
-		}
-	    }
-	}
-    }
-
-    if (IS_INSN_ID(iobj, getlocal)) {
-	LINK_ELEMENT *niobj = &iobj->link;
-	if (IS_NEXT_INSN_ID(niobj, dup)) {
-	    niobj = niobj->next;
-	}
-	if (IS_NEXT_INSN_ID(niobj, setlocal)) {
-	    LINK_ELEMENT *set1 = niobj->next;
-	    if (OPERAND_AT(iobj, 0) == OPERAND_AT(set1, 0) &&
-		OPERAND_AT(iobj, 1) == OPERAND_AT(set1, 1)) {
-		ELEM_REMOVE(set1);
-		ELEM_REMOVE(niobj);
-	    }
-	}
-    }
-
     return COMPILE_OK;
 }
 
 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 (insn_id == BIN(opt_neq)) {
+    if (iobj->operand_size > old_opsize) {
 	VALUE *old_operands = iobj->operands;
-	iobj->operand_size = 4;
+	if (insn_id != BIN(opt_neq)) {
+	    rb_bug("insn_set_specialized_instruction: unknown insn: %d", insn_id);
+	}
 	iobj->operands = (VALUE *)compile_data_alloc(iseq, iobj->operand_size * sizeof(VALUE));
 	iobj->operands[0] = old_operands[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 */
+	iobj->operands[1] = (VALUE)new_callinfo(iseq, idEq, 1, 0, 0);
     }
 
     return COMPILE_OK;
@@ -2897,35 +1924,11 @@ insn_set_specialized_instruction(rb_iseq_t *iseq, INSN *iobj, int insn_id)
 static int
 iseq_specialized_instruction(rb_iseq_t *iseq, INSN *iobj)
 {
-    if (IS_INSN_ID(iobj, newarray) && iobj->link.next &&
-	IS_INSN(iobj->link.next)) {
-	/*
-	 *   [a, b, ...].max/min -> a, b, c, opt_newarray_max/min
-	 */
-	INSN *niobj = (INSN *)iobj->link.next;
-	if (IS_INSN_ID(niobj, send)) {
-	    struct rb_call_info *ci = (struct rb_call_info *)OPERAND_AT(niobj, 0);
-	    if ((ci->flag & VM_CALL_ARGS_SIMPLE) && ci->orig_argc == 0) {
-		switch (ci->mid) {
-		  case idMax:
-		    iobj->insn_id = BIN(opt_newarray_max);
-		    ELEM_REMOVE(&niobj->link);
-		    return COMPILE_OK;
-		  case idMin:
-		    iobj->insn_id = BIN(opt_newarray_min);
-		    ELEM_REMOVE(&niobj->link);
-		    return COMPILE_OK;
-		}
-	    }
-	}
-    }
-
-    if (IS_INSN_ID(iobj, send)) {
-	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);
+    if (iobj->insn_id == BIN(send)) {
+	rb_call_info_t *ci = (rb_call_info_t *)OPERAND_AT(iobj, 0);
 
 #define SP_INSN(opt) insn_set_specialized_instruction(iseq, iobj, BIN(opt_##opt))
-	if (ci->flag & VM_CALL_ARGS_SIMPLE) {
+	if (ci->blockiseq == 0 && (ci->flag & ~VM_CALL_ARGS_SKIP_SETUP) == 0) {
 	    switch (ci->orig_argc) {
 	      case 0:
 		switch (ci->mid) {
@@ -2953,17 +1956,10 @@ 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_BLOCKARG) == 0 && blockiseq == NULL) {
-	    iobj->insn_id = BIN(opt_send_without_block);
-	    iobj->operand_size = insn_len(iobj->insn_id) - 1;
+	if (ci->flag & VM_CALL_ARGS_SKIP_SETUP) {
+	    iobj->insn_id = BIN(opt_send_simple);
 	}
     }
 #undef SP_INSN
@@ -2971,41 +1967,20 @@ 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_TOP:
-      case ISEQ_TYPE_EVAL:
-      case ISEQ_TYPE_MAIN:
-	/* not tail callable because cfp will be over popped */
-      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 *const anchor)
+iseq_optimize(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
 {
     LINK_ELEMENT *list;
-    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;
-
+    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;
     list = FIRST_ELEMENT(anchor);
 
     while (list) {
-	if (IS_INSN(list)) {
+	if (list->type == ISEQ_ELEMENT_INSN) {
 	    if (do_peepholeopt) {
-		iseq_peephole_optimize(iseq, list, tailcallopt);
+		iseq_peephole_optimize(iseq, list, do_tailcallopt);
 	    }
 	    if (do_si) {
 		iseq_specialized_instruction(iseq, (INSN *)list);
@@ -3014,17 +1989,6 @@ iseq_optimize(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
 		insn_operands_unification((INSN *)list);
 	    }
 	}
-	if (IS_LABEL(list)) {
-	    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;
@@ -3062,7 +2026,7 @@ new_unified_insn(rb_iseq_t *iseq,
 	list = list->next;
     }
 
-    return new_insn_core(iseq, iobj->insn_info.line_no, insn_id, argc, operands);
+    return new_insn_core(iseq, iobj->line_no, insn_id, argc, operands);
 }
 #endif
 
@@ -3072,7 +2036,7 @@ new_unified_insn(rb_iseq_t *iseq,
  * It's future work (if compile time was bottle neck).
  */
 static int
-iseq_insns_unification(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
+iseq_insns_unification(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
 {
 #if OPT_INSTRUCTIONS_UNIFICATION
     LINK_ELEMENT *list;
@@ -3082,7 +2046,7 @@ iseq_insns_unification(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
 
     list = FIRST_ELEMENT(anchor);
     while (list) {
-	if (IS_INSN(list)) {
+	if (list->type == ISEQ_ELEMENT_INSN) {
 	    iobj = (INSN *)list;
 	    id = iobj->insn_id;
 	    if (unified_insns_data[id] != 0) {
@@ -3091,7 +2055,7 @@ iseq_insns_unification(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
 		    const int *unified = entry[j];
 		    LINK_ELEMENT *li = list->next;
 		    for (k = 2; k < unified[1]; k++) {
-			if (!IS_INSN(li) ||
+			if (li->type != ISEQ_ELEMENT_INSN ||
 			    ((INSN *)li)->insn_id != unified[k]) {
 			    goto miss;
 			}
@@ -3130,7 +2094,7 @@ iseq_insns_unification(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
 #include "opt_sc.inc"
 
 static int
-insn_set_sc_state(rb_iseq_t *iseq, const LINK_ELEMENT *anchor, INSN *iobj, int state)
+insn_set_sc_state(rb_iseq_t *iseq, INSN *iobj, int state)
 {
     int nstate;
     int insn_id;
@@ -3145,12 +2109,12 @@ insn_set_sc_state(rb_iseq_t *iseq, const LINK_ELEMENT *anchor, INSN *iobj, int s
 
 	if (lobj->sc_state != 0) {
 	    if (lobj->sc_state != nstate) {
-		BADINSN_DUMP(anchor, iobj, lobj);
-		COMPILE_ERROR(iseq, iobj->insn_info.line_no,
-			      "insn_set_sc_state error: %d at "LABEL_FORMAT
-			      ", %d expected\n",
-			      lobj->sc_state, lobj->label_no, nstate);
-		return COMPILE_NG;
+		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;
 	    }
 	}
 	else {
@@ -3186,7 +2150,7 @@ label_set_sc_state(LABEL *lobj, int state)
 #endif
 
 static int
-iseq_set_sequence_stackcaching(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
+iseq_set_sequence_stackcaching(rb_iseq_t *iseq, LINK_ANCHOR *anchor)
 {
 #if OPT_STACK_CACHING
     LINK_ELEMENT *list;
@@ -3217,7 +2181,7 @@ iseq_set_sequence_stackcaching(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
 				new_insn_body(iseq, 0, BIN(reput), 0);
 
 			    /* replace this insn */
-			    ELEM_REPLACE(list, (LINK_ELEMENT *)rpobj);
+			    REPLACE_ELEM(list, (LINK_ELEMENT *)rpobj);
 			    list = (LINK_ELEMENT *)rpobj;
 			    goto redo_point;
 			}
@@ -3228,7 +2192,7 @@ iseq_set_sequence_stackcaching(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
 			if (state == SCS_AB || state == SCS_BA) {
 			    state = (state == SCS_AB ? SCS_BA : SCS_AB);
 
-			    ELEM_REMOVE(list);
+			    REMOVE_ELEM(list);
 			    list = list->next;
 			    goto redo_point;
 			}
@@ -3250,12 +2214,11 @@ iseq_set_sequence_stackcaching(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
 			  case SCS_XX:
 			    goto normal_insn;
 			  default:
-			    COMPILE_ERROR(iseq, iobj->insn_info.line_no,
-					  "unreachable");
-			    return COMPILE_NG;
+			    rb_compile_error(RSTRING_PTR(iseq->location.path), iobj->line_no,
+					     "unreachable");
 			}
 			/* remove useless pop */
-			ELEM_REMOVE(list);
+			REMOVE_ELEM(list);
 			list = list->next;
 			goto redo_point;
 		    }
@@ -3263,7 +2226,7 @@ iseq_set_sequence_stackcaching(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
 		    /* none */
 		}		/* end of switch */
 	      normal_insn:
-		state = insn_set_sc_state(iseq, anchor, iobj, state);
+		state = insn_set_sc_state(iseq, iobj, state);
 		break;
 	    }
 	  case ISEQ_ELEMENT_LABEL:
@@ -3283,153 +2246,82 @@ iseq_set_sequence_stackcaching(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
 }
 
 static int
-all_string_result_p(const NODE *node)
+compile_dstr_fragments(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE *node, int *cntp)
 {
-    if (!node) return FALSE;
-    switch (nd_type(node)) {
-      case NODE_STR: case NODE_DSTR:
-	return TRUE;
-      case NODE_IF: case NODE_UNLESS:
-	if (!node->nd_body || !node->nd_else) return FALSE;
-	if (all_string_result_p(node->nd_body))
-	    return all_string_result_p(node->nd_else);
-	return FALSE;
-      case NODE_AND: case NODE_OR:
-	if (!node->nd_2nd)
-	    return all_string_result_p(node->nd_1st);
-	if (!all_string_result_p(node->nd_1st))
-	    return FALSE;
-	return all_string_result_p(node->nd_2nd);
-      default:
-	return FALSE;
-    }
-}
-
-static int
-compile_dstr_fragments(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node, int *cntp)
-{
-    const NODE *list = node->nd_next;
+    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)) {
-	    COMPILE_ERROR(ERROR_ARGS "dstr: must be string: %s",
-			  rb_builtin_type_name(TYPE(lit)));
-	    return COMPILE_NG;
-	}
-	lit = freeze_literal(iseq, lit);
 	ADD_INSN1(ret, nd_line(node), putobject, lit);
-	if (RSTRING_LEN(lit) == 0) first_lit = LAST_ELEMENT(ret);
     }
 
     while (list) {
-	const NODE *const head = list->nd_head;
-	if (nd_type(head) == NODE_STR) {
-	    lit = freeze_literal(iseq, head->nd_lit);
-	    ADD_INSN1(ret, nd_line(head), putobject, lit);
-	    lit = Qnil;
+	node = list->nd_head;
+	if (nd_type(node) == NODE_STR) {
+	    hide_obj(node->nd_lit);
+	    ADD_INSN1(ret, nd_line(node), putobject, node->nd_lit);
 	}
 	else {
-	    CHECK(COMPILE(ret, "each string", head));
+	    COMPILE(ret, "each string", node);
 	}
 	cnt++;
 	list = list->nd_next;
     }
-    if (NIL_P(lit) && first_lit) {
-	ELEM_REMOVE(first_lit);
-	--cnt;
-    }
     *cntp = cnt;
 
     return COMPILE_OK;
 }
 
 static int
-compile_dstr(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node)
+compile_dstr(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node)
 {
     int cnt;
-    CHECK(compile_dstr_fragments(iseq, ret, node, &cnt));
+    compile_dstr_fragments(iseq, ret, node, &cnt);
     ADD_INSN1(ret, nd_line(node), concatstrings, INT2FIX(cnt));
     return COMPILE_OK;
 }
 
 static int
-compile_dregx(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node)
+compile_dregx(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node)
 {
     int cnt;
-    CHECK(compile_dstr_fragments(iseq, ret, node, &cnt));
+    compile_dstr_fragments(iseq, ret, node, &cnt);
     ADD_INSN2(ret, nd_line(node), toregexp, INT2FIX(node->nd_cflag), INT2FIX(cnt));
     return COMPILE_OK;
 }
 
 static int
-compile_flip_flop(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node, int again,
-		  LABEL *then_label, LABEL *else_label)
-{
-    const int line = nd_line(node);
-    LABEL *lend = NEW_LABEL(line);
-    rb_num_t cnt = ISEQ_FLIP_CNT_INCREMENT(iseq->body->local_iseq)
-	+ VM_SVAR_FLIPFLOP_START;
-    VALUE key = INT2FIX(cnt);
-
-    ADD_INSN2(ret, line, getspecial, key, INT2FIX(0));
-    ADD_INSNL(ret, line, branchif, lend);
-
-    /* *flip == 0 */
-    CHECK(COMPILE(ret, "flip2 beg", node->nd_beg));
-    ADD_INSNL(ret, line, branchunless, else_label);
-    ADD_INSN1(ret, line, putobject, Qtrue);
-    ADD_INSN1(ret, line, setspecial, key);
-    if (!again) {
-	ADD_INSNL(ret, line, jump, then_label);
-    }
-
-    /* *flip == 1 */
-    ADD_LABEL(ret, lend);
-    CHECK(COMPILE(ret, "flip2 end", node->nd_end));
-    ADD_INSNL(ret, line, branchunless, then_label);
-    ADD_INSN1(ret, line, putobject, Qfalse);
-    ADD_INSN1(ret, line, setspecial, key);
-    ADD_INSNL(ret, line, jump, then_label);
-
-    return COMPILE_OK;
-}
-
-static int
-compile_branch_condition(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *cond,
+compile_branch_condition(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * cond,
 			 LABEL *then_label, LABEL *else_label)
 {
-  again:
     switch (nd_type(cond)) {
       case NODE_AND:
 	{
 	    LABEL *label = NEW_LABEL(nd_line(cond));
-	    CHECK(compile_branch_condition(iseq, ret, cond->nd_1st, label,
-					   else_label));
-	    if (!label->refcnt) break;
+	    compile_branch_condition(iseq, ret, cond->nd_1st, label,
+				     else_label);
 	    ADD_LABEL(ret, label);
-	    cond = cond->nd_2nd;
-	    goto again;
+	    compile_branch_condition(iseq, ret, cond->nd_2nd, then_label,
+				     else_label);
+	    break;
 	}
       case NODE_OR:
 	{
 	    LABEL *label = NEW_LABEL(nd_line(cond));
-	    CHECK(compile_branch_condition(iseq, ret, cond->nd_1st, then_label,
-					   label));
-	    if (!label->refcnt) break;
+	    compile_branch_condition(iseq, ret, cond->nd_1st, then_label,
+				     label);
 	    ADD_LABEL(ret, label);
-	    cond = cond->nd_2nd;
-	    goto again;
+	    compile_branch_condition(iseq, ret, cond->nd_2nd, then_label,
+				     else_label);
+	    break;
 	}
-      case NODE_LIT:		/* NODE_LIT is always true */
+      case NODE_LIT:		/* NODE_LIT is always not true */
       case NODE_TRUE:
       case NODE_STR:
-      case NODE_ZARRAY:
-      case NODE_LAMBDA:
 	/* printf("useless condition eliminate (%s)\n",  ruby_node_name(nd_type(cond))); */
 	ADD_INSNL(ret, nd_line(cond), jump, then_label);
 	break;
@@ -3438,18 +2330,8 @@ compile_branch_condition(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *co
 	/* printf("useless condition eliminate (%s)\n", ruby_node_name(nd_type(cond))); */
 	ADD_INSNL(ret, nd_line(cond), jump, else_label);
 	break;
-      case NODE_FLIP2:
-	CHECK(compile_flip_flop(iseq, ret, cond, TRUE, then_label, else_label));
-	break;
-      case NODE_FLIP3:
-	CHECK(compile_flip_flop(iseq, ret, cond, FALSE, then_label, else_label));
-	break;
-      case NODE_DEFINED:
-	CHECK(compile_defined_expr(iseq, ret, cond, Qfalse));
-	goto branch;
       default:
-	CHECK(COMPILE(ret, "branch condition", cond));
-      branch:
+	COMPILE(ret, "branch condition", cond);
 	ADD_INSNL(ret, nd_line(cond), branchunless, else_label);
 	ADD_INSNL(ret, nd_line(cond), jump, then_label);
 	break;
@@ -3457,107 +2339,22 @@ compile_branch_condition(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *co
     return COMPILE_OK;
 }
 
-static int
-compile_array_keyword_arg(rb_iseq_t *iseq, LINK_ANCHOR *const ret,
-			  const NODE *const root_node,
-			  struct rb_call_info_kw_arg **const kw_arg_ptr,
-			  unsigned int *flag)
-{
-    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) {
-	const NODE *node = root_node->nd_head;
-
-	while (node) {
-	    const NODE *key_node = node->nd_head;
-
-	    assert(nd_type(node) == NODE_ARRAY);
-	    if (!key_node) {
-		if (flag && !root_node->nd_alen) *flag |= VM_CALL_KW_SPLAT;
-		return FALSE;
-	    }
-	    else if (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) {
-		const NODE *key_node = node->nd_head;
-		const 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,
     COMPILE_ARRAY_TYPE_ARGS
 };
 
-static inline int
-static_literal_node_p(const NODE *node)
-{
-    node = node->nd_head;
-    switch (nd_type(node)) {
-      case NODE_LIT:
-      case NODE_NIL:
-      case NODE_TRUE:
-      case NODE_FALSE:
-	return TRUE;
-      default:
-	return FALSE;
-    }
-}
-
-static inline VALUE
-static_literal_value(const NODE *node)
-{
-    node = node->nd_head;
-    switch (nd_type(node)) {
-      case NODE_NIL:
-	return Qnil;
-      case NODE_TRUE:
-	return Qtrue;
-      case NODE_FALSE:
-	return Qfalse;
-      default:
-	return node->nd_lit;
-    }
-}
-
 static int
-compile_array(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node_root,
-	      enum compile_array_type_t type, struct rb_call_info_kw_arg **keywords_ptr,
-	      unsigned int *flag, int popped)
+compile_array_(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE* node_root,
+	       enum compile_array_type_t type, int poped)
 {
-    const NODE *node = node_root;
+    NODE *node = node_root;
     int line = (int)nd_line(node);
     int len = 0;
 
     if (nd_type(node) == NODE_ZARRAY) {
-	if (!popped) {
+	if (!poped) {
 	    switch (type) {
 	      case COMPILE_ARRAY_TYPE_ARRAY: ADD_INSN1(ret, line, newarray, INT2FIX(0)); break;
 	      case COMPILE_ARRAY_TYPE_HASH: ADD_INSN1(ret, line, newhash, INT2FIX(0)); break;
@@ -3570,60 +2367,48 @@ compile_array(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node_ro
 	int first = 1, i;
 
 	while (node) {
-	    const NODE *start_node = node, *end_node;
-	    const NODE *kw = 0;
+	    NODE *start_node = node, *end_node;
+	    NODE *kw = 0;
 	    const int max = 0x100;
 	    DECL_ANCHOR(anchor);
 	    INIT_ANCHOR(anchor);
 
 	    for (i=0; i<max && node; i++, len++, node = node->nd_next) {
-		if (CPDEBUG > 0) {
-		    EXPECT_NODE("compile_array", node, NODE_ARRAY, -1);
+		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 (type != COMPILE_ARRAY_TYPE_ARRAY && !node->nd_head) {
+		if (type == COMPILE_ARRAY_TYPE_HASH && !node->nd_head) {
+		    opt_p = 0;
 		    kw = node->nd_next;
-		    node = 0;
-		    if (kw) {
-			opt_p = 0;
-			node = kw->nd_next;
-			kw = kw->nd_head;
-		    }
+		    node = kw->nd_next;
+		    kw = kw->nd_head;
 		    break;
 		}
-		if (opt_p && !static_literal_node_p(node)) {
+		if (opt_p && nd_type(node->nd_head) != NODE_LIT) {
 		    opt_p = 0;
 		}
 
-		if (type == COMPILE_ARRAY_TYPE_ARGS &&
-		    node->nd_next == NULL /* last node */ &&
-		    compile_array_keyword_arg(iseq, anchor, node->nd_head, keywords_ptr, flag)) {
-		    len--;
-		}
-		else {
-		    COMPILE_(anchor, "array element", node->nd_head, popped);
-		}
+		COMPILE_(anchor, "array element", node->nd_head, poped);
 	    }
 
 	    if (opt_p && type != COMPILE_ARRAY_TYPE_ARGS) {
-		if (!popped) {
+		if (!poped) {
 		    VALUE ary = rb_ary_tmp_new(i);
 
 		    end_node = node;
 		    node = start_node;
 
 		    while (node != end_node) {
-			rb_ary_push(ary, static_literal_value(node));
+			rb_ary_push(ary, node->nd_head->nd_lit);
 			node = node->nd_next;
 		    }
-		    while (node && node->nd_next &&
-			   static_literal_node_p(node) &&
-			   static_literal_node_p(node->nd_next)) {
-			VALUE elem[2];
-			elem[0] = static_literal_value(node);
-			elem[1] = static_literal_value(node->nd_next);
-			rb_ary_cat(ary, elem, 2);
-			node = node->nd_next->nd_next;
+		    while (node && nd_type(node->nd_head) == NODE_LIT &&
+			   node->nd_next && nd_type(node->nd_next->nd_head) == NODE_LIT) {
+			rb_ary_push(ary, node->nd_head->nd_lit);
+			node = node->nd_next;
+			rb_ary_push(ary, node->nd_head->nd_lit);
+			node = node->nd_next;
 			len++;
 		    }
 
@@ -3639,7 +2424,7 @@ compile_array(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node_ro
 			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, id_core_hash_from_ary, INT2FIX(1));
+			    ADD_SEND(ret, line, ID2SYM(id_core_hash_from_ary), INT2FIX(1));
 			}
 		    }
 		    else {
@@ -3648,21 +2433,15 @@ compile_array(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node_ro
 			    ADD_INSN(ret, line, concatarray);
 			}
 			else {
-#if 0
 			    ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
 			    ADD_INSN1(ret, line, putobject, ary);
-			    ADD_SEND(ret, line, id_core_hash_merge_ary, INT2FIX(1));
-			    /* wrong number of arguments -----------------------^ */
-#else
-			    COMPILE_ERROR(ERROR_ARGS "core#hash_merge_ary");
-			    return -1;
-#endif
+			    ADD_SEND(ret, line, ID2SYM(id_core_hash_merge_ary), INT2FIX(1));
 			}
 		    }
 		}
 	    }
 	    else {
-		if (!popped || kw) {
+		if (!poped) {
 		    switch (type) {
 		      case COMPILE_ARRAY_TYPE_ARRAY:
 			ADD_INSN1(anchor, line, newarray, INT2FIX(i));
@@ -3679,36 +2458,22 @@ compile_array(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node_ro
 		      case COMPILE_ARRAY_TYPE_HASH:
 			if (i > 0) {
 			    if (first) {
-				if (!popped) {
-				    ADD_INSN1(anchor, line, newhash, INT2FIX(i));
-				}
+				ADD_INSN1(anchor, line, newhash, INT2FIX(i));
 				APPEND_LIST(ret, anchor);
 			    }
 			    else {
-				if (!popped) {
-				    ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
-				    ADD_INSN(ret, line, swap);
-				}
+				ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
+				ADD_INSN(ret, line, swap);
 				APPEND_LIST(ret, anchor);
-				if (!popped) {
-				    ADD_SEND(ret, line, id_core_hash_merge_ptr, INT2FIX(i + 1));
-				}
+				ADD_SEND(ret, line, ID2SYM(id_core_hash_merge_ptr), INT2FIX(i + 1));
 			    }
 			}
 			if (kw) {
 			    VALUE nhash = (i > 0 || !first) ? INT2FIX(2) : INT2FIX(1);
-			    if (!popped) {
-				ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
-				if (i > 0 || !first) ADD_INSN(ret, line, swap);
-			    }
+			    ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
+			    if (i > 0 || !first) ADD_INSN(ret, line, swap);
 			    COMPILE(ret, "keyword splat", kw);
-			    if (popped) {
-				ADD_INSN(ret, line, pop);
-			    }
-			    else {
-				ADD_SEND(ret, line, id_core_hash_merge_kwd, nhash);
-				if (nhash == INT2FIX(1)) ADD_SEND(ret, line, rb_intern("dup"), INT2FIX(0));
-			    }
+			    ADD_SEND(ret, line, ID2SYM(id_core_hash_merge_kwd), nhash);
 			}
 			first = 0;
 			break;
@@ -3718,7 +2483,7 @@ compile_array(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node_ro
 		    }
 		}
 		else {
-		    /* popped */
+		    /* poped */
 		    APPEND_LIST(ret, anchor);
 		}
 	    }
@@ -3728,7 +2493,13 @@ compile_array(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node_ro
 }
 
 static VALUE
-case_when_optimizable_literal(const NODE *const node)
+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);
+}
+
+static VALUE
+case_when_optimizable_literal(NODE * node)
 {
     switch (nd_type(node)) {
       case NODE_LIT: {
@@ -3743,24 +2514,17 @@ case_when_optimizable_literal(const NODE *const node)
 	}
 	break;
       }
-      case NODE_NIL:
-	return Qnil;
-      case NODE_TRUE:
-	return Qtrue;
-      case NODE_FALSE:
-	return Qfalse;
       case NODE_STR:
-	return rb_fstring(node->nd_lit);
+	return node->nd_lit;
     }
     return Qundef;
 }
 
 static int
-when_vals(rb_iseq_t *iseq, LINK_ANCHOR *const cond_seq, const NODE *vals,
-	  LABEL *l1, int only_special_literals, VALUE literals)
+when_vals(rb_iseq_t *iseq, LINK_ANCHOR *cond_seq, NODE *vals, LABEL *l1, int only_special_literals, VALUE literals)
 {
     while (vals) {
-	const NODE *val = vals->nd_head;
+	NODE* val = vals->nd_head;
 	VALUE lit = case_when_optimizable_literal(val);
 
 	if (lit == Qundef) {
@@ -3768,9 +2532,7 @@ when_vals(rb_iseq_t *iseq, LINK_ANCHOR *const cond_seq, const NODE *vals,
 	}
 	else {
 	    if (rb_hash_lookup(literals, lit) != Qnil) {
-		VALUE file = rb_iseq_path(iseq);
-		rb_compile_warning(RSTRING_PTR(file), nd_line(val),
-				   "duplicated when clause is ignored");
+		rb_compile_warning(RSTRING_PTR(iseq->location.path), nd_line(val), "duplicated when clause is ignored");
 	    }
 	    else {
 		rb_hash_aset(literals, lit, (VALUE)(l1) | 1);
@@ -3781,8 +2543,8 @@ when_vals(rb_iseq_t *iseq, LINK_ANCHOR *const cond_seq, const NODE *vals,
 
 	if (nd_type(val) == NODE_STR) {
 	    debugp_param("nd_lit", val->nd_lit);
-	    lit = freeze_literal(iseq, val->nd_lit);
-	    ADD_INSN1(cond_seq, nd_line(val), putobject, lit);
+	    OBJ_FREEZE(val->nd_lit);
+	    ADD_INSN1(cond_seq, nd_line(val), putobject, val->nd_lit);
 	}
 	else {
 	    COMPILE(cond_seq, "when cond", val);
@@ -3796,44 +2558,41 @@ when_vals(rb_iseq_t *iseq, LINK_ANCHOR *const cond_seq, const NODE *vals,
 }
 
 static int
-compile_massign_lhs(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node)
+compile_massign_lhs(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE *node)
 {
     switch (nd_type(node)) {
       case NODE_ATTRASGN: {
 	INSN *iobj;
-	struct rb_call_info *ci;
+	rb_call_info_t *ci;
 	VALUE dupidx;
-	int line = nd_line(node);
 
-	CHECK(COMPILE_POPPED(ret, "masgn lhs (NODE_ATTRASGN)", node));
+	COMPILE_POPED(ret, "masgn lhs (NODE_ATTRASGN)", node);
 
-	iobj = (INSN *)get_prev_insn((INSN *)LAST_ELEMENT(ret)); /* send insn */
-	ci = (struct rb_call_info *)iobj->operands[0];
-	ci->orig_argc += 1;
+	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;
 	dupidx = INT2FIX(ci->orig_argc);
 
-	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 */
+	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    */
 	break;
       }
       case NODE_MASGN: {
 	DECL_ANCHOR(anchor);
 	INIT_ANCHOR(anchor);
-	CHECK(COMPILE_POPPED(anchor, "nest masgn lhs", node));
-	ELEM_REMOVE(FIRST_ELEMENT(anchor));
+	COMPILE_POPED(anchor, "nest masgn lhs", node);
+	REMOVE_ELEM(FIRST_ELEMENT(anchor));
 	ADD_SEQ(ret, anchor);
 	break;
       }
       default: {
 	DECL_ANCHOR(anchor);
 	INIT_ANCHOR(anchor);
-	CHECK(COMPILE_POPPED(anchor, "masgn lhs", node));
-	ELEM_REMOVE(FIRST_ELEMENT(anchor));
+	COMPILE_POPED(anchor, "masgn lhs", node);
+	REMOVE_ELEM(FIRST_ELEMENT(anchor));
 	ADD_SEQ(ret, anchor);
       }
     }
@@ -3841,26 +2600,25 @@ compile_massign_lhs(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const n
     return COMPILE_OK;
 }
 
-static int
-compile_massign_opt_lhs(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *lhsn)
+static void
+compile_massign_opt_lhs(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE *lhsn)
 {
     if (lhsn) {
-	CHECK(compile_massign_opt_lhs(iseq, ret, lhsn->nd_next));
-	CHECK(compile_massign_lhs(iseq, ret, lhsn->nd_head));
+	compile_massign_opt_lhs(iseq, ret, lhsn->nd_next);
+	compile_massign_lhs(iseq, ret, lhsn->nd_head);
     }
-    return COMPILE_OK;
 }
 
 static int
-compile_massign_opt(rb_iseq_t *iseq, LINK_ANCHOR *const ret,
-		    const NODE *rhsn, const NODE *orig_lhsn)
+compile_massign_opt(rb_iseq_t *iseq, LINK_ANCHOR *ret,
+		    NODE *rhsn, NODE *orig_lhsn)
 {
     VALUE mem[64];
     const int memsize = numberof(mem);
     int memindex = 0;
     int llen = 0, rlen = 0;
     int i;
-    const NODE *lhsn = orig_lhsn;
+    NODE *lhsn = orig_lhsn;
 
 #define MEMORY(v) { \
     int i; \
@@ -3876,7 +2634,7 @@ compile_massign_opt(rb_iseq_t *iseq, LINK_ANCHOR *const ret,
     }
 
     while (lhsn) {
-	const NODE *ln = lhsn->nd_head;
+	NODE *ln = lhsn->nd_head;
 	switch (nd_type(ln)) {
 	  case NODE_LASGN:
 	    MEMORY(ln->nd_vid);
@@ -3884,6 +2642,7 @@ compile_massign_opt(rb_iseq_t *iseq, LINK_ANCHOR *const ret,
 	  case NODE_DASGN:
 	  case NODE_DASGN_CURR:
 	  case NODE_IASGN:
+	  case NODE_IASGN2:
 	  case NODE_CVASGN:
 	    MEMORY(ln->nd_vid);
 	    break;
@@ -3896,7 +2655,7 @@ compile_massign_opt(rb_iseq_t *iseq, LINK_ANCHOR *const ret,
 
     while (rhsn) {
 	if (llen <= rlen) {
-	    COMPILE_POPPED(ret, "masgn val (popped)", rhsn->nd_head);
+	    COMPILE_POPED(ret, "masgn val (popped)", rhsn->nd_head);
 	}
 	else {
 	    COMPILE(ret, "masgn val", rhsn->nd_head);
@@ -3915,96 +2674,58 @@ compile_massign_opt(rb_iseq_t *iseq, LINK_ANCHOR *const ret,
     return 1;
 }
 
-static void
-adjust_stack(rb_iseq_t *iseq, LINK_ANCHOR *const 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 *const ret, const NODE *const node, int popped)
+compile_massign(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE *node, int poped)
 {
-    const NODE *rhsn = node->nd_value;
-    const NODE *splatn = node->nd_args;
-    const NODE *lhsn = node->nd_head;
-    int lhs_splat = (splatn && splatn != NODE_SPECIAL_NO_NAME_REST) ? 1 : 0;
+    NODE *rhsn = node->nd_value;
+    NODE *splatn = node->nd_args;
+    NODE *lhsn = node->nd_head;
+    int lhs_splat = (splatn && (VALUE)splatn != (VALUE)-1) ? 1 : 0;
 
-    if (!popped || splatn || !compile_massign_opt(iseq, ret, rhsn, lhsn)) {
+    if (!poped || splatn || !compile_massign_opt(iseq, ret, rhsn, lhsn)) {
 	int llen = 0;
-	int expand = 1;
 	DECL_ANCHOR(lhsseq);
 
 	INIT_ANCHOR(lhsseq);
 
 	while (lhsn) {
-	    CHECK(compile_massign_lhs(iseq, lhsseq, lhsn->nd_head));
+	    compile_massign_lhs(iseq, lhsseq, lhsn->nd_head);
 	    llen += 1;
 	    lhsn = lhsn->nd_next;
 	}
 
 	COMPILE(ret, "normal masgn rhs", rhsn);
 
-	if (!popped) {
+	if (!poped) {
 	    ADD_INSN(ret, nd_line(node), dup);
 	}
-	else if (!lhs_splat) {
-	    INSN *last = (INSN*)ret->last;
-	    if (IS_INSN(&last->link) &&
-		IS_INSN_ID(last, 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_INSN2(ret, nd_line(node), expandarray,
+		  INT2FIX(llen), INT2FIX(lhs_splat));
 	ADD_SEQ(ret, lhsseq);
 
 	if (lhs_splat) {
 	    if (nd_type(splatn) == NODE_POSTARG) {
 		/*a, b, *r, p1, p2 */
-		const NODE *postn = splatn->nd_2nd;
-		const NODE *restn = splatn->nd_1st;
+		NODE *postn = splatn->nd_2nd;
+		NODE *restn = splatn->nd_1st;
 		int num = (int)postn->nd_alen;
-		int flag = 0x02 | ((restn == NODE_SPECIAL_NO_NAME_REST) ? 0x00 : 0x01);
+		int flag = 0x02 | (((VALUE)restn == (VALUE)-1) ? 0x00 : 0x01);
 
 		ADD_INSN2(ret, nd_line(splatn), expandarray,
 			  INT2FIX(num), INT2FIX(flag));
 
-		if (restn != NODE_SPECIAL_NO_NAME_REST) {
-		    CHECK(compile_massign_lhs(iseq, ret, restn));
+		if ((VALUE)restn != (VALUE)-1) {
+		    compile_massign_lhs(iseq, ret, restn);
 		}
 		while (postn) {
-		    CHECK(compile_massign_lhs(iseq, ret, postn->nd_head));
+		    compile_massign_lhs(iseq, ret, postn->nd_head);
 		    postn = postn->nd_next;
 		}
 	    }
 	    else {
 		/* a, b, *r */
-		CHECK(compile_massign_lhs(iseq, ret, splatn));
+		compile_massign_lhs(iseq, ret, splatn);
 	    }
 	}
     }
@@ -4012,61 +2733,57 @@ compile_massign(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node,
 }
 
 static int
-compile_const_prefix(rb_iseq_t *iseq, const NODE *const node,
-		     LINK_ANCHOR *const pref, LINK_ANCHOR *const body)
+compile_colon2(rb_iseq_t *iseq, NODE * node,
+	       LINK_ANCHOR *pref, LINK_ANCHOR *body)
 {
     switch (nd_type(node)) {
       case NODE_CONST:
-	debugi("compile_const_prefix - colon", node->nd_vid);
+	debugi("compile_colon2 - colon", node->nd_vid);
 	ADD_INSN1(body, nd_line(node), getconstant, ID2SYM(node->nd_vid));
 	break;
       case NODE_COLON3:
-	debugi("compile_const_prefix - colon3", node->nd_mid);
+	debugi("compile_colon2 - colon3", node->nd_mid);
 	ADD_INSN(body, nd_line(node), pop);
 	ADD_INSN1(body, nd_line(node), putobject, rb_cObject);
 	ADD_INSN1(body, nd_line(node), getconstant, ID2SYM(node->nd_mid));
 	break;
       case NODE_COLON2:
-	CHECK(compile_const_prefix(iseq, node->nd_head, pref, body));
-	debugi("compile_const_prefix - colon2", node->nd_mid);
+	compile_colon2(iseq, node->nd_head, pref, body);
+	debugi("compile_colon2 - colon2", node->nd_mid);
 	ADD_INSN1(body, nd_line(node), getconstant, ID2SYM(node->nd_mid));
 	break;
       default:
-	CHECK(COMPILE(pref, "const colon2 prefix", node));
+	COMPILE(pref, "const colon2 prefix", node);
 	break;
     }
     return COMPILE_OK;
 }
 
-static int
-compile_cpath(LINK_ANCHOR *const ret, rb_iseq_t *iseq, const NODE *cpath)
+static VALUE
+compile_cpath(LINK_ANCHOR *ret, rb_iseq_t *iseq, NODE *cpath)
 {
     if (nd_type(cpath) == NODE_COLON3) {
 	/* toplevel class ::Foo */
 	ADD_INSN1(ret, nd_line(cpath), putobject, rb_cObject);
-	return VM_DEFINECLASS_FLAG_SCOPED;
+	return Qfalse;
     }
     else if (cpath->nd_head) {
 	/* Bar::Foo */
 	COMPILE(ret, "nd_else->nd_head", cpath->nd_head);
-	return VM_DEFINECLASS_FLAG_SCOPED;
+	return Qfalse;
     }
     else {
 	/* class at cbase Foo */
 	ADD_INSN1(ret, nd_line(cpath), putspecialobject,
 		  INT2FIX(VM_SPECIAL_OBJECT_CONST_BASE));
-	return 0;
+	return Qtrue;
     }
 }
 
-#define private_recv_p(node) (nd_type((node)->nd_recv) == NODE_SELF)
-static int
-defined_expr(rb_iseq_t *iseq, LINK_ANCHOR *const ret,
-	     const NODE *const node, LABEL **lfinish, VALUE needstr);
-
+#define defined_expr defined_expr0
 static int
-defined_expr0(rb_iseq_t *iseq, LINK_ANCHOR *const ret,
-	      const NODE *const node, LABEL **lfinish, VALUE needstr)
+defined_expr(rb_iseq_t *iseq, LINK_ANCHOR *ret,
+	     NODE *node, LABEL **lfinish, VALUE needstr)
 {
     enum defined_type expr_type = 0;
     enum node_type type;
@@ -4088,10 +2805,10 @@ defined_expr0(rb_iseq_t *iseq, LINK_ANCHOR *const ret,
 	break;
 
       case NODE_ARRAY:{
-	const NODE *vals = node;
+	NODE *vals = node;
 
 	do {
-	    defined_expr0(iseq, ret, vals->nd_head, lfinish, Qfalse);
+	    defined_expr(iseq, ret, vals->nd_head, lfinish, Qfalse);
 
 	    if (!lfinish[1]) {
 		lfinish[1] = NEW_LABEL(nd_line(node));
@@ -4141,14 +2858,19 @@ defined_expr0(rb_iseq_t *iseq, LINK_ANCHOR *const ret,
 	if (!lfinish[1]) {
 	    lfinish[1] = NEW_LABEL(nd_line(node));
 	}
-	defined_expr0(iseq, ret, node->nd_head, lfinish, Qfalse);
+	defined_expr(iseq, ret, node->nd_head, lfinish, Qfalse);
 	ADD_INSNL(ret, nd_line(node), branchunless, lfinish[1]);
-	COMPILE(ret, "defined/colon2#nd_head", node->nd_head);
 
-	ADD_INSN3(ret, nd_line(node), defined,
-		  (rb_is_const_id(node->nd_mid) ?
-		   INT2FIX(DEFINED_CONST) : INT2FIX(DEFINED_METHOD)),
-		  ID2SYM(node->nd_mid), needstr);
+	if (rb_is_const_id(node->nd_mid)) {
+	    COMPILE(ret, "defined/colon2#nd_head", node->nd_head);
+	    ADD_INSN3(ret, nd_line(node), defined, INT2FIX(DEFINED_CONST),
+		      ID2SYM(node->nd_mid), needstr);
+	}
+	else {
+	    COMPILE(ret, "defined/colon2#nd_head", node->nd_head);
+	    ADD_INSN3(ret, nd_line(node), defined, INT2FIX(DEFINED_METHOD),
+		      ID2SYM(node->nd_mid), needstr);
+	}
 	return 1;
       case NODE_COLON3:
 	ADD_INSN1(ret, nd_line(node), putobject, rb_cObject);
@@ -4158,23 +2880,29 @@ defined_expr0(rb_iseq_t *iseq, LINK_ANCHOR *const ret,
 
 	/* method dispatch */
       case NODE_CALL:
-      case NODE_OPCALL:
       case NODE_VCALL:
       case NODE_FCALL:
       case NODE_ATTRASGN:{
-	const int explicit_receiver =
-	    (type == NODE_CALL || type == NODE_OPCALL ||
-	     (type == NODE_ATTRASGN && !private_recv_p(node)));
+	int self = TRUE;
 
-	if (!lfinish[1] && (node->nd_args || explicit_receiver)) {
+	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));
 	}
 	if (node->nd_args) {
-	    defined_expr0(iseq, ret, node->nd_args, lfinish, Qfalse);
+	    defined_expr(iseq, ret, node->nd_args, lfinish, Qfalse);
 	    ADD_INSNL(ret, nd_line(node), branchunless, lfinish[1]);
 	}
-	if (explicit_receiver) {
-	    defined_expr0(iseq, ret, node->nd_recv, lfinish, Qfalse);
+	if (!self) {
+	    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);
 	    ADD_INSN3(ret, nd_line(node), defined, INT2FIX(DEFINED_METHOD),
@@ -4220,6 +2948,7 @@ defined_expr0(rb_iseq_t *iseq, LINK_ANCHOR *const ret,
       case NODE_GASGN:
       case NODE_IASGN:
       case NODE_CDECL:
+      case NODE_CVDECL:
       case NODE_CVASGN:
 	expr_type = DEFINED_ASGN;
 	break;
@@ -4237,10 +2966,11 @@ defined_expr0(rb_iseq_t *iseq, LINK_ANCHOR *const ret,
     }
     return 0;
 }
+#undef defined_expr
 
 static int
-defined_expr(rb_iseq_t *iseq, LINK_ANCHOR *const ret,
-	     const NODE *const node, LABEL **lfinish, VALUE needstr)
+defined_expr(rb_iseq_t *iseq, LINK_ANCHOR *ret,
+	     NODE *node, LABEL **lfinish, VALUE needstr)
 {
     LINK_ELEMENT *lcur = ret->last;
     int done = defined_expr0(iseq, ret, node, lfinish, needstr);
@@ -4248,16 +2978,11 @@ defined_expr(rb_iseq_t *iseq, LINK_ANCHOR *const ret,
 	int line = nd_line(node);
 	LABEL *lstart = NEW_LABEL(line);
 	LABEL *lend = NEW_LABEL(line);
-	const rb_iseq_t *rescue;
-	NODE tmp_node, *node = &tmp_node;
-	rb_node_init(node, NODE_NIL, 0, 0, 0);
-	rescue = NEW_CHILD_ISEQ(node,
-				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;
+	VALUE rescue = NEW_CHILD_ISEQVAL(NEW_NIL(),
+					 rb_str_concat(rb_str_new2
+						       ("defined guard in "),
+						       iseq->location.label),
+					 ISEQ_TYPE_DEFINED_GUARD, 0);
 	APPEND_LABEL(ret, lcur, lstart);
 	ADD_LABEL(ret, lend);
 	ADD_CATCH_ENTRY(CATCH_TYPE_RESCUE, lstart, lend, rescue, lfinish[1]);
@@ -4265,63 +2990,40 @@ defined_expr(rb_iseq_t *iseq, LINK_ANCHOR *const ret,
     return done;
 }
 
-static int
-compile_defined_expr(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node, VALUE needstr)
-{
-    const int line = nd_line(node);
-    if (!node->nd_head) {
-	VALUE str = rb_iseq_defined_string(DEFINED_NIL);
-	ADD_INSN1(ret, line, putobject, str);
-    }
-    else {
-	LABEL *lfinish[2];
-	LINK_ELEMENT *last = ret->last;
-	lfinish[0] = NEW_LABEL(line);
-	lfinish[1] = 0;
-	defined_expr(iseq, ret, node->nd_head, lfinish, needstr);
-	if (lfinish[1]) {
-	    ELEM_INSERT_NEXT(last, &new_insn_body(iseq, line, BIN(putnil), 0)->link);
-	    ADD_INSN(ret, line, swap);
-	    ADD_INSN(ret, line, pop);
-	    ADD_LABEL(ret, lfinish[1]);
-	}
-	ADD_LABEL(ret, lfinish[0]);
-    }
-    return COMPILE_OK;
-}
+#define BUFSIZE 0x100
 
 static VALUE
-make_name_for_block(const rb_iseq_t *orig_iseq)
+make_name_for_block(rb_iseq_t *iseq)
 {
     int level = 1;
-    const rb_iseq_t *iseq = orig_iseq;
+    rb_iseq_t *ip = iseq;
 
-    if (orig_iseq->body->parent_iseq != 0) {
-	while (orig_iseq->body->local_iseq != iseq) {
-	    if (iseq->body->type == ISEQ_TYPE_BLOCK) {
+    if (iseq->parent_iseq != 0) {
+	while (ip->local_iseq != ip) {
+	    if (ip->type == ISEQ_TYPE_BLOCK) {
 		level++;
 	    }
-	    iseq = iseq->body->parent_iseq;
+	    ip = ip->parent_iseq;
 	}
     }
 
     if (level == 1) {
-	return rb_sprintf("block in %"PRIsVALUE, iseq->body->location.label);
+	return rb_sprintf("block in %"PRIsVALUE, ip->location.label);
     }
     else {
-	return rb_sprintf("block (%d levels) in %"PRIsVALUE, level, iseq->body->location.label);
+	return rb_sprintf("block (%d levels) in %"PRIsVALUE, level, ip->location.label);
     }
 }
 
 static void
 push_ensure_entry(rb_iseq_t *iseq,
 		  struct iseq_compile_data_ensure_node_stack *enl,
-		  struct ensure_range *er, const NODE *const node)
+		  struct ensure_range *er, NODE *node)
 {
     enl->ensure_node = node;
-    enl->prev = ISEQ_COMPILE_DATA(iseq)->ensure_node_stack;	/* prev */
+    enl->prev = iseq->compile_data->ensure_node_stack;	/* prev */
     enl->erange = er;
-    ISEQ_COMPILE_DATA(iseq)->ensure_node_stack = enl;
+    iseq->compile_data->ensure_node_stack = enl;
 }
 
 static void
@@ -4343,16 +3045,16 @@ add_ensure_range(rb_iseq_t *iseq, struct ensure_range *erange,
 }
 
 static void
-add_ensure_iseq(LINK_ANCHOR *const ret, rb_iseq_t *iseq, int is_return)
+add_ensure_iseq(LINK_ANCHOR *ret, rb_iseq_t *iseq, int is_return)
 {
     struct iseq_compile_data_ensure_node_stack *enlp =
-	ISEQ_COMPILE_DATA(iseq)->ensure_node_stack;
+	iseq->compile_data->ensure_node_stack;
     struct iseq_compile_data_ensure_node_stack *prev_enlp = enlp;
     DECL_ANCHOR(ensure);
 
     INIT_ANCHOR(ensure);
     while (enlp) {
-	if (enlp->erange != NULL) {
+	if (enlp->erange != 0) {
 	    DECL_ANCHOR(ensure_part);
 	    LABEL *lstart = NEW_LABEL(0);
 	    LABEL *lend = NEW_LABEL(0);
@@ -4360,9 +3062,9 @@ add_ensure_iseq(LINK_ANCHOR *const ret, rb_iseq_t *iseq, int is_return)
 
 	    add_ensure_range(iseq, enlp->erange, lstart, lend);
 
-	    ISEQ_COMPILE_DATA(iseq)->ensure_node_stack = enlp->prev;
+	    iseq->compile_data->ensure_node_stack = enlp->prev;
 	    ADD_LABEL(ensure_part, lstart);
-	    COMPILE_POPPED(ensure_part, "ensure part", enlp->ensure_node);
+	    COMPILE_POPED(ensure_part, "ensure part", enlp->ensure_node);
 	    ADD_LABEL(ensure_part, lend);
 	    ADD_SEQ(ensure, ensure_part);
 	}
@@ -4373,13 +3075,12 @@ add_ensure_iseq(LINK_ANCHOR *const ret, rb_iseq_t *iseq, int is_return)
 	}
 	enlp = enlp->prev;
     }
-    ISEQ_COMPILE_DATA(iseq)->ensure_node_stack = prev_enlp;
+    iseq->compile_data->ensure_node_stack = prev_enlp;
     ADD_SEQ(ret, ensure);
 }
 
 static VALUE
-setup_args(rb_iseq_t *iseq, LINK_ANCHOR *const args, const NODE *argn,
-	   unsigned int *flag, struct rb_call_info_kw_arg **keywords)
+setup_args(rb_iseq_t *iseq, LINK_ANCHOR *args, NODE *argn, VALUE *flag)
 {
     VALUE argc = INT2FIX(0);
     int nsplat = 0;
@@ -4399,7 +3100,6 @@ setup_args(rb_iseq_t *iseq, LINK_ANCHOR *const args, const NODE *argn,
 	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;
@@ -4412,22 +3112,23 @@ setup_args(rb_iseq_t *iseq, LINK_ANCHOR *const args, const NODE *argn,
 
 	    INIT_ANCHOR(tmp);
 	    COMPILE(tmp, "args (cat: splat)", argn->nd_body);
-	    if (nd_type(argn) == NODE_ARGSCAT) {
-		ADD_INSN1(tmp, nd_line(argn), splatarray, nsplat ? Qtrue : Qfalse);
+	    if (next_is_array && nsplat == 0) {
+		/* none */
 	    }
 	    else {
-		ADD_INSN1(tmp, nd_line(argn), newarray, INT2FIX(1));
+		if (nd_type(argn) == NODE_ARGSCAT) {
+		    ADD_INSN1(tmp, nd_line(argn), splatarray, Qfalse);
+		}
+		else {
+		    ADD_INSN1(tmp, nd_line(argn), newarray, INT2FIX(1));
+		}
 	    }
 	    INSERT_LIST(args_splat, tmp);
 	    nsplat++;
 	    *flag |= VM_CALL_ARGS_SPLAT;
-	    if (nd_type(argn->nd_body) == NODE_HASH)
-		*flag |= VM_CALL_KW_SPLAT;
 
 	    if (next_is_array) {
-		int len = compile_array(iseq, args, argn->nd_head, COMPILE_ARRAY_TYPE_ARGS, NULL, flag, FALSE);
-		if (len < 0) return Qnil;
-		argc = INT2FIX(len + 1);
+		argc = INT2FIX(compile_array(iseq, args, argn->nd_head, COMPILE_ARRAY_TYPE_ARGS) + 1);
 	    }
 	    else {
 		argn = argn->nd_head;
@@ -4435,15 +3136,12 @@ setup_args(rb_iseq_t *iseq, LINK_ANCHOR *const args, const NODE *argn,
 	    }
 	    break;
 	  }
-	  case NODE_ARRAY:
-	    {
-		int len = compile_array(iseq, args, argn, COMPILE_ARRAY_TYPE_ARGS, keywords, flag, FALSE);
-		if (len < 0) return Qnil;
-		argc = INT2FIX(len);
-		break;
-	    }
+	  case NODE_ARRAY: {
+	    argc = INT2FIX(compile_array(iseq, args, argn, COMPILE_ARRAY_TYPE_ARGS));
+	    break;
+	  }
 	  default: {
-	    UNKNOWN_NODE("setup_arg", argn, Qnil);
+	    rb_bug("setup_arg: unknown node: %s\n", ruby_node_name(nd_type(argn)));
 	  }
 	}
     }
@@ -4451,1099 +3149,729 @@ setup_args(rb_iseq_t *iseq, LINK_ANCHOR *const args, const NODE *argn,
     if (nsplat > 1) {
 	int i;
 	for (i=1; i<nsplat; i++) {
-	    ADD_INSN(args_splat, nd_line(argn), concatarray);
+	    ADD_INSN(args_splat, nd_line(args), concatarray);
 	}
     }
 
-    if (!LIST_INSN_SIZE_ZERO(args_splat)) {
+    if (!LIST_SIZE_ZERO(args_splat)) {
 	ADD_SEQ(args, args_splat);
     }
 
     if (*flag & VM_CALL_ARGS_BLOCKARG) {
-	if (LIST_INSN_SIZE_ONE(arg_block)) {
-	    LINK_ELEMENT *elem = FIRST_ELEMENT(arg_block);
-	    if (elem->type == ISEQ_ELEMENT_INSN) {
-		INSN *iobj = (INSN *)elem;
-		if (iobj->insn_id == BIN(getblockparam)) {
-		    iobj->insn_id = BIN(getlocal);
-		    *flag |= VM_CALL_ARGS_BLOCKARG_BLOCKPARAM;
-		}
-	    }
-	}
 	ADD_SEQ(args, arg_block);
     }
     return argc;
 }
 
 static VALUE
-build_postexe_iseq(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *body)
+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);
-
+    VALUE block = NEW_CHILD_ISEQVAL(body, make_name_for_block(iseq->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);
+    ADD_CALL_WITH_BLOCK(ret, line, ID2SYM(id_core_set_postexe), argc, block);
     iseq_set_local_table(iseq, 0);
     return Qnil;
 }
 
-static void
-compile_named_capture_assign(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node)
-{
-    const NODE *vars;
-    LINK_ELEMENT *last;
-    int line = nd_line(node);
-    LABEL *fail_label = NEW_LABEL(line), *end_label = NEW_LABEL(line);
+/**
+  compile each node
 
-#if !(defined(NAMED_CAPTURE_BY_SVAR) && NAMED_CAPTURE_BY_SVAR-0)
-    ADD_INSN1(ret, line, getglobal, ((VALUE)rb_global_entry(idBACKREF) | 1));
-#else
-    ADD_INSN2(ret, line, getspecial, INT2FIX(1) /* '~' */, INT2FIX(0));
-#endif
-    ADD_INSN(ret, line, dup);
-    ADD_INSNL(ret, line, branchunless, fail_label);
+  self:  InstructionSequence
+  node:  Ruby compiled node
+  poped: This node will be poped
+ */
+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;
 
-    for (vars = node; vars; vars = vars->nd_next) {
-	INSN *cap;
-	if (vars->nd_next) {
-	    ADD_INSN(ret, line, dup);
-	}
-	last = ret->last;
-	COMPILE_POPPED(ret, "capture", vars->nd_head);
-	last = last->next; /* putobject :var */
-	cap = new_insn_send(iseq, line, idAREF, INT2FIX(1),
-			    NULL, INT2FIX(0), NULL);
-	ELEM_INSERT_PREV(last->next, (LINK_ELEMENT *)cap);
-#if !defined(NAMED_CAPTURE_SINGLE_OPT) || NAMED_CAPTURE_SINGLE_OPT-0
-	if (!vars->nd_next && vars == node) {
-	    /* only one name */
-	    DECL_ANCHOR(nom);
-
-	    INIT_ANCHOR(nom);
-	    ADD_INSNL(nom, line, jump, end_label);
-	    ADD_LABEL(nom, fail_label);
-# if 0				/* $~ must be MatchData or nil */
-	    ADD_INSN(nom, line, pop);
-	    ADD_INSN(nom, line, putnil);
-# endif
-	    ADD_LABEL(nom, end_label);
-	    (nom->last->next = cap->link.next)->prev = nom->last;
-	    (cap->link.next = nom->anchor.next)->prev = &cap->link;
-	    return;
+    if (node == 0) {
+	if (!poped) {
+	    debugs("node: NODE_NIL(implicit)\n");
+	    ADD_INSN(ret, iseq->compile_data->last_line, putnil);
 	}
-#endif
-    }
-    ADD_INSNL(ret, line, jump, end_label);
-    ADD_LABEL(ret, fail_label);
-    ADD_INSN(ret, line, pop);
-    for (vars = node; vars; vars = vars->nd_next) {
-	last = ret->last;
-	COMPILE_POPPED(ret, "capture", vars->nd_head);
-	last = last->next; /* putobject :var */
-	((INSN*)last)->insn_id = BIN(putnil);
-	((INSN*)last)->operand_size = 0;
+	return COMPILE_OK;
     }
-    ADD_LABEL(ret, end_label);
-}
 
-static int
-number_literal_p(const NODE *n)
-{
-    return (n && nd_type(n) == NODE_LIT && RB_INTEGER_TYPE_P(n->nd_lit));
-}
+    iseq->compile_data->last_line = line = (int)nd_line(node);
+    debug_node_start(node);
 
-static int
-compile_if(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node, int popped, const enum node_type type)
-{
-    const NODE *const node_body = type == NODE_IF ? node->nd_body : node->nd_else;
-    const NODE *const node_else = type == NODE_IF ? node->nd_else : node->nd_body;
-
-    const int line = nd_line(node);
-    const int lineno = nd_first_lineno(node);
-    const int column = nd_first_column(node);
-    const int last_lineno = nd_last_lineno(node);
-    const int last_column = nd_last_column(node);
-    DECL_ANCHOR(cond_seq);
-    DECL_ANCHOR(then_seq);
-    DECL_ANCHOR(else_seq);
-    LABEL *then_label, *else_label, *end_label;
-    VALUE branches = 0;
-
-    INIT_ANCHOR(cond_seq);
-    INIT_ANCHOR(then_seq);
-    INIT_ANCHOR(else_seq);
-    then_label = NEW_LABEL(line);
-    else_label = NEW_LABEL(line);
-    end_label = 0;
-
-    compile_branch_condition(iseq, cond_seq, node->nd_cond,
-			     then_label, else_label);
-    CHECK(COMPILE_(then_seq, "then", node_body, popped));
-    CHECK(COMPILE_(else_seq, "else", node_else, popped));
-
-    ADD_SEQ(ret, cond_seq);
-
-    if (then_label->refcnt && else_label->refcnt) {
-	DECL_BRANCH_BASE(branches, lineno, column, last_lineno, last_column, type == NODE_IF ? "if" : "unless");
+    type = nd_type(node);
+
+    if (node->flags & NODE_FL_NEWLINE) {
+	ADD_TRACE(ret, line, RUBY_EVENT_LINE);
+	saved_last_element = ret->last;
     }
 
-    if (then_label->refcnt) {
-	ADD_LABEL(ret, then_label);
-	if (else_label->refcnt) {
-	    ADD_TRACE_BRANCH_COVERAGE(
-		ret,
-		node_body ? nd_first_lineno(node_body) : lineno,
-		node_body ? nd_first_column(node_body) : column,
-		node_body ? nd_last_lineno(node_body) : last_lineno,
-		node_body ? nd_last_column(node_body) : last_column,
-		type == NODE_IF ? "then" : "else",
-		branches);
+    switch (type) {
+      case NODE_BLOCK:{
+	while (node && nd_type(node) == NODE_BLOCK) {
+	    COMPILE_(ret, "BLOCK body", node->nd_head,
+		     (node->nd_next == 0 && poped == 0) ? 0 : 1);
+	    node = node->nd_next;
 	}
-	ADD_SEQ(ret, then_seq);
+	if (node) {
+	    COMPILE_(ret, "BLOCK next", node->nd_next, poped);
+	}
+	break;
+      }
+      case NODE_IF:{
+	DECL_ANCHOR(cond_seq);
+	DECL_ANCHOR(then_seq);
+	DECL_ANCHOR(else_seq);
+	LABEL *then_label, *else_label, *end_label;
+
+	INIT_ANCHOR(cond_seq);
+	INIT_ANCHOR(then_seq);
+	INIT_ANCHOR(else_seq);
+	then_label = NEW_LABEL(line);
+	else_label = NEW_LABEL(line);
 	end_label = NEW_LABEL(line);
+
+	compile_branch_condition(iseq, cond_seq, node->nd_cond,
+				 then_label, else_label);
+	COMPILE_(then_seq, "then", node->nd_body, poped);
+	COMPILE_(else_seq, "else", node->nd_else, poped);
+
+	ADD_SEQ(ret, cond_seq);
+
+	ADD_LABEL(ret, then_label);
+	ADD_SEQ(ret, then_seq);
 	ADD_INSNL(ret, line, jump, end_label);
-    }
 
-    if (else_label->refcnt) {
 	ADD_LABEL(ret, else_label);
-	if (then_label->refcnt) {
-	    ADD_TRACE_BRANCH_COVERAGE(
-		ret,
-		node_else ? nd_first_lineno(node_else) : lineno,
-		node_else ? nd_first_column(node_else) : column,
-		node_else ? nd_last_lineno(node_else) : last_lineno,
-		node_else ? nd_last_column(node_else) : last_column,
-		type == NODE_IF ? "else" : "then",
-		branches);
-	}
 	ADD_SEQ(ret, else_seq);
-    }
 
-    if (end_label) {
 	ADD_LABEL(ret, end_label);
-    }
 
-    return COMPILE_OK;
-}
+	break;
+      }
+      case NODE_CASE:{
+	NODE *vals;
+	NODE *tempnode = node;
+	LABEL *endlabel, *elselabel;
+	DECL_ANCHOR(head);
+	DECL_ANCHOR(body_seq);
+	DECL_ANCHOR(cond_seq);
+	int only_special_literals = 1;
+	VALUE literals = rb_hash_new();
+
+	INIT_ANCHOR(head);
+	INIT_ANCHOR(body_seq);
+	INIT_ANCHOR(cond_seq);
+
+	rb_hash_tbl_raw(literals)->type = &cdhash_type;
+
+	if (node->nd_head == 0) {
+	    COMPILE_(ret, "when", node->nd_body, poped);
+	    break;
+	}
+	COMPILE(head, "case base", node->nd_head);
 
-static int
-compile_case(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const orig_node, int popped)
-{
-    const NODE *vals;
-    const NODE *node = orig_node;
-    LABEL *endlabel, *elselabel;
-    DECL_ANCHOR(head);
-    DECL_ANCHOR(body_seq);
-    DECL_ANCHOR(cond_seq);
-    int only_special_literals = 1;
-    VALUE literals = rb_hash_new();
-    int line, lineno, column, last_lineno, last_column;
-    enum node_type type;
-    VALUE branches = 0;
+	node = node->nd_body;
+	type = nd_type(node);
+	line = nd_line(node);
 
-    INIT_ANCHOR(head);
-    INIT_ANCHOR(body_seq);
-    INIT_ANCHOR(cond_seq);
+	if (type != NODE_WHEN) {
+	    COMPILE_ERROR((ERROR_ARGS "NODE_CASE: unexpected node. must be NODE_WHEN, but %s", ruby_node_name(type)));
+	}
 
-    rb_hash_tbl_raw(literals)->type = &cdhash_type;
+	endlabel = NEW_LABEL(line);
+	elselabel = NEW_LABEL(line);
 
-    CHECK(COMPILE(head, "case base", node->nd_head));
+	ADD_SEQ(ret, head);	/* case VAL */
 
-    DECL_BRANCH_BASE(branches, nd_first_lineno(node), nd_first_column(node), nd_last_lineno(node), nd_last_column(node), "case");
+	while (type == NODE_WHEN) {
+	    LABEL *l1;
 
-    node = node->nd_body;
-    type = nd_type(node);
-    line = nd_line(node);
-    lineno = nd_first_lineno(node);
-    column = nd_first_column(node);
-    last_lineno = nd_last_lineno(node);
-    last_column = nd_last_column(node);
-
-    if (type != NODE_WHEN) {
-	COMPILE_ERROR(ERROR_ARGS "NODE_CASE: unexpected node. must be NODE_WHEN, but %s", ruby_node_name(type));
-	return COMPILE_NG;
-    }
+	    l1 = NEW_LABEL(line);
+	    ADD_LABEL(body_seq, l1);
+	    ADD_INSN(body_seq, line, pop);
+	    COMPILE_(body_seq, "when body", node->nd_body, poped);
+	    ADD_INSNL(body_seq, line, jump, endlabel);
+
+	    vals = node->nd_head;
+	    if (vals) {
+		switch (nd_type(vals)) {
+		  case NODE_ARRAY:
+		    only_special_literals = when_vals(iseq, cond_seq, vals, l1, only_special_literals, literals);
+		    break;
+		  case NODE_SPLAT:
+		  case NODE_ARGSCAT:
+		  case NODE_ARGSPUSH:
+		    only_special_literals = 0;
+		    ADD_INSN (cond_seq, nd_line(vals), dup);
+		    COMPILE(cond_seq, "when/cond splat", vals);
+		    ADD_INSN1(cond_seq, nd_line(vals), checkmatch, INT2FIX(VM_CHECKMATCH_TYPE_CASE | VM_CHECKMATCH_ARRAY));
+		    ADD_INSNL(cond_seq, nd_line(vals), branchif, l1);
+		    break;
+		  default:
+		    rb_bug("NODE_CASE: unknown node (%s)",
+			   ruby_node_name(nd_type(vals)));
+		}
+	    }
+	    else {
+		rb_bug("NODE_CASE: must be NODE_ARRAY, but 0");
+	    }
+
+	    node = node->nd_next;
+	    if (!node) {
+		break;
+	    }
+	    type = nd_type(node);
+	    line = nd_line(node);
+	}
+	/* else */
+	if (node) {
+	    ADD_LABEL(cond_seq, elselabel);
+	    ADD_INSN(cond_seq, line, pop);
+	    COMPILE_(cond_seq, "else", node, poped);
+	    ADD_INSNL(cond_seq, line, jump, endlabel);
+	}
+	else {
+	    debugs("== else (implicit)\n");
+	    ADD_LABEL(cond_seq, elselabel);
+	    ADD_INSN(cond_seq, nd_line(tempnode), pop);
+	    if (!poped) {
+		ADD_INSN(cond_seq, nd_line(tempnode), putnil);
+	    }
+	    ADD_INSNL(cond_seq, nd_line(tempnode), jump, endlabel);
+	}
+
+	if (only_special_literals) {
+	    iseq_add_mark_object(iseq, literals);
 
-    endlabel = NEW_LABEL(line);
-    elselabel = NEW_LABEL(line);
-
-    ADD_SEQ(ret, head);	/* case VAL */
-
-    while (type == NODE_WHEN) {
-	LABEL *l1;
-
-	l1 = NEW_LABEL(line);
-	ADD_LABEL(body_seq, l1);
-	ADD_INSN(body_seq, line, pop);
-	ADD_TRACE_BRANCH_COVERAGE(
-		body_seq,
-		node->nd_body ? nd_first_lineno(node->nd_body) : lineno,
-		node->nd_body ? nd_first_column(node->nd_body) : column,
-		node->nd_body ? nd_last_lineno(node->nd_body) : last_lineno,
-		node->nd_body ? nd_last_column(node->nd_body) : last_column,
-		"when",
-		branches);
-	CHECK(COMPILE_(body_seq, "when body", node->nd_body, popped));
-	ADD_INSNL(body_seq, line, jump, endlabel);
-
-	vals = node->nd_head;
-	if (vals) {
+	    ADD_INSN(ret, nd_line(tempnode), dup);
+	    ADD_INSN2(ret, nd_line(tempnode), opt_case_dispatch, literals, elselabel);
+	}
+
+	ADD_SEQ(ret, cond_seq);
+	ADD_SEQ(ret, body_seq);
+	ADD_LABEL(ret, endlabel);
+	break;
+      }
+      case NODE_WHEN:{
+	NODE *vals;
+	NODE *val;
+	NODE *orig_node = node;
+	LABEL *endlabel;
+	DECL_ANCHOR(body_seq);
+
+	INIT_ANCHOR(body_seq);
+	endlabel = NEW_LABEL(line);
+
+	while (node && nd_type(node) == NODE_WHEN) {
+	    LABEL *l1 = NEW_LABEL(line = nd_line(node));
+	    ADD_LABEL(body_seq, l1);
+	    COMPILE_(body_seq, "when", node->nd_body, poped);
+	    ADD_INSNL(body_seq, line, jump, endlabel);
+
+	    vals = node->nd_head;
+	    if (!vals) {
+		rb_bug("NODE_WHEN: must be NODE_ARRAY, but 0");
+	    }
 	    switch (nd_type(vals)) {
 	      case NODE_ARRAY:
-		only_special_literals = when_vals(iseq, cond_seq, vals, l1, only_special_literals, literals);
+		while (vals) {
+		    val = vals->nd_head;
+		    COMPILE(ret, "when2", val);
+		    ADD_INSNL(ret, nd_line(val), branchif, l1);
+		    vals = vals->nd_next;
+		}
 		break;
 	      case NODE_SPLAT:
 	      case NODE_ARGSCAT:
 	      case NODE_ARGSPUSH:
-		only_special_literals = 0;
-		ADD_INSN (cond_seq, nd_line(vals), dup);
-		CHECK(COMPILE(cond_seq, "when/cond splat", vals));
-		ADD_INSN1(cond_seq, nd_line(vals), checkmatch, INT2FIX(VM_CHECKMATCH_TYPE_CASE | VM_CHECKMATCH_ARRAY));
-		ADD_INSNL(cond_seq, nd_line(vals), branchif, l1);
+		ADD_INSN(ret, nd_line(vals), putnil);
+		COMPILE(ret, "when2/cond splat", vals);
+		ADD_INSN1(ret, nd_line(vals), checkmatch, INT2FIX(VM_CHECKMATCH_TYPE_WHEN | VM_CHECKMATCH_ARRAY));
+		ADD_INSNL(ret, nd_line(vals), branchif, l1);
 		break;
 	      default:
-		UNKNOWN_NODE("NODE_CASE", vals, COMPILE_NG);
+		rb_bug("NODE_WHEN: unknown node (%s)",
+		       ruby_node_name(nd_type(vals)));
 	    }
+	    node = node->nd_next;
 	}
-	else {
-	    EXPECT_NODE_NONULL("NODE_CASE", node, NODE_ARRAY, COMPILE_NG);
-	}
+	/* else */
+	COMPILE_(ret, "else", node, poped);
+	ADD_INSNL(ret, nd_line(orig_node), jump, endlabel);
 
-	node = node->nd_next;
-	if (!node) {
-	    break;
-	}
-	type = nd_type(node);
-	line = nd_line(node);
-	lineno = nd_first_lineno(node);
-	column = nd_first_column(node);
-	last_lineno = nd_last_lineno(node);
-	last_column = nd_last_column(node);
-    }
-    /* else */
-    if (node) {
-	ADD_LABEL(cond_seq, elselabel);
-	ADD_INSN(cond_seq, line, pop);
-	ADD_TRACE_BRANCH_COVERAGE(cond_seq, nd_first_lineno(node), nd_first_column(node), nd_last_lineno(node), nd_last_column(node), "else", branches);
-	CHECK(COMPILE_(cond_seq, "else", node, popped));
-	ADD_INSNL(cond_seq, line, jump, endlabel);
-    }
-    else {
-	debugs("== else (implicit)\n");
-	ADD_LABEL(cond_seq, elselabel);
-	ADD_INSN(cond_seq, nd_line(orig_node), pop);
-	ADD_TRACE_BRANCH_COVERAGE(cond_seq, nd_first_lineno(orig_node), nd_first_column(orig_node), nd_last_lineno(orig_node), nd_last_column(orig_node), "else", branches);
-	if (!popped) {
-	    ADD_INSN(cond_seq, nd_line(orig_node), putnil);
-	}
-	ADD_INSNL(cond_seq, nd_line(orig_node), jump, endlabel);
-    }
+	ADD_SEQ(ret, body_seq);
+	ADD_LABEL(ret, endlabel);
 
-    if (only_special_literals) {
-	iseq_add_mark_object(iseq, literals);
+	break;
+      }
+      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;
 
-	ADD_INSN(ret, nd_line(orig_node), dup);
-	ADD_INSN2(ret, nd_line(orig_node), opt_case_dispatch, literals, elselabel);
-	LABEL_REF(elselabel);
-    }
+	struct iseq_compile_data_ensure_node_stack enl;
 
-    ADD_SEQ(ret, cond_seq);
-    ADD_SEQ(ret, body_seq);
-    ADD_LABEL(ret, endlabel);
-    return COMPILE_OK;
-}
+	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 *end_label = NEW_LABEL(line);
 
-static int
-compile_case2(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const orig_node, int popped)
-{
-    const NODE *vals;
-    const NODE *val;
-    const NODE *node = orig_node->nd_body;
-    LABEL *endlabel;
-    DECL_ANCHOR(body_seq);
-    VALUE branches = 0;
-
-    DECL_BRANCH_BASE(branches, nd_first_lineno(orig_node), nd_first_column(orig_node), nd_last_lineno(orig_node), nd_last_column(orig_node), "case");
-
-    INIT_ANCHOR(body_seq);
-    endlabel = NEW_LABEL(nd_line(node));
-
-    while (node && nd_type(node) == NODE_WHEN) {
-	const int line = nd_line(node);
-	const int lineno = nd_first_lineno(node);
-	const int column = nd_first_column(node);
-	const int last_lineno = nd_last_lineno(node);
-	const int last_column = nd_last_column(node);
-	LABEL *l1 = NEW_LABEL(line);
-	ADD_LABEL(body_seq, l1);
-	ADD_TRACE_BRANCH_COVERAGE(
-		body_seq,
-		node->nd_body ? nd_first_lineno(node->nd_body) : lineno,
-		node->nd_body ? nd_first_column(node->nd_body) : column,
-		node->nd_body ? nd_last_lineno(node->nd_body) : last_lineno,
-		node->nd_body ? nd_last_column(node->nd_body) : last_column,
-		"when",
-		branches);
-	CHECK(COMPILE_(body_seq, "when", node->nd_body, popped));
-	ADD_INSNL(body_seq, line, jump, endlabel);
-
-	vals = node->nd_head;
-	if (!vals) {
-	    COMPILE_ERROR(ERROR_ARGS "NODE_WHEN: must be NODE_ARRAY, but 0");
-	    return COMPILE_NG;
+	LABEL *next_catch_label = NEW_LABEL(line);
+	LABEL *tmp_label = NULL;
+
+	iseq->compile_data->loopval_popped = 0;
+	push_ensure_entry(iseq, &enl, 0, 0);
+
+	if (type == NODE_OPT_N || node->nd_state == 1) {
+	    ADD_INSNL(ret, line, jump, next_label);
 	}
-	switch (nd_type(vals)) {
-	  case NODE_ARRAY:
-	    while (vals) {
-		val = vals->nd_head;
-		CHECK(COMPILE(ret, "when2", val));
-		ADD_INSNL(ret, nd_line(val), branchif, l1);
-		vals = vals->nd_next;
-	    }
-	    break;
-	  case NODE_SPLAT:
-	  case NODE_ARGSCAT:
-	  case NODE_ARGSPUSH:
-	    ADD_INSN(ret, nd_line(vals), putnil);
-	    CHECK(COMPILE(ret, "when2/cond splat", vals));
-	    ADD_INSN1(ret, nd_line(vals), checkmatch, INT2FIX(VM_CHECKMATCH_TYPE_WHEN | VM_CHECKMATCH_ARRAY));
-	    ADD_INSNL(ret, nd_line(vals), branchif, l1);
-	    break;
-	  default:
-	    UNKNOWN_NODE("NODE_WHEN", vals, COMPILE_NG);
+	else {
+	    tmp_label = NEW_LABEL(line);
+	    ADD_INSNL(ret, line, jump, tmp_label);
 	}
-	node = node->nd_next;
-    }
-    /* else */
-    ADD_TRACE_BRANCH_COVERAGE(
-	ret,
-	node ? nd_first_lineno(node) : nd_first_lineno(orig_node),
-	node ? nd_first_column(node) : nd_first_column(orig_node),
-	node ? nd_last_lineno(node) : nd_last_lineno(orig_node),
-	node ? nd_last_column(node) : nd_last_column(orig_node),
-	"else",
-	branches);
-    CHECK(COMPILE_(ret, "else", node, popped));
-    ADD_INSNL(ret, nd_line(orig_node), jump, endlabel);
-
-    ADD_SEQ(ret, body_seq);
-    ADD_LABEL(ret, endlabel);
-    return COMPILE_OK;
-}
-
-static int
-compile_loop(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node, int popped, const enum node_type type)
-{
-    const int line = (int)nd_line(node);
-    const int lineno = nd_first_lineno(node);
-    const int column = nd_first_column(node);
-    const int last_lineno = nd_last_lineno(node);
-    const int last_column = nd_last_column(node);
-    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;
-    VALUE branches = 0;
-
-    struct iseq_compile_data_ensure_node_stack enl;
-
-    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(iseq)->loopval_popped = 0;
-    push_ensure_entry(iseq, &enl, NULL, NULL);
-
-    if (node->nd_state == 1) {
+	ADD_INSN(ret, line, putnil);
+	ADD_LABEL(ret, next_catch_label);
+	ADD_INSN(ret, line, pop);
 	ADD_INSNL(ret, line, jump, next_label);
-    }
-    else {
-	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);
-    ADD_INSNL(ret, line, jump, next_label);
-    if (tmp_label) ADD_LABEL(ret, tmp_label);
-
-    ADD_LABEL(ret, redo_label);
-    DECL_BRANCH_BASE(branches, lineno, column, last_lineno, last_column, type == NODE_WHILE ? "while" : "until");
-    ADD_TRACE_BRANCH_COVERAGE(
-	ret,
-	node->nd_body ? nd_first_lineno(node->nd_body) : lineno,
-	node->nd_body ? nd_first_column(node->nd_body) : column,
-	node->nd_body ? nd_last_lineno(node->nd_body) : last_lineno,
-	node->nd_body ? nd_last_column(node->nd_body) : last_column,
-	"body",
-	branches);
-    CHECK(COMPILE_POPPED(ret, "while body", node->nd_body));
-    ADD_LABEL(ret, next_label);	/* next */
-
-    if (type == NODE_WHILE) {
-	compile_branch_condition(iseq, ret, node->nd_cond,
-				 redo_label, end_label);
-    }
-    else {
-	/* until */
-	compile_branch_condition(iseq, ret, node->nd_cond,
-				 end_label, redo_label);
-    }
+	if (tmp_label) ADD_LABEL(ret, tmp_label);
 
-    ADD_LABEL(ret, end_label);
-    ADD_ADJUST_RESTORE(ret, adjust_label);
+	ADD_LABEL(ret, redo_label);
+	COMPILE_POPED(ret, "while body", node->nd_body);
+	ADD_LABEL(ret, next_label);	/* next */
 
-    if (node->nd_state == Qundef) {
-	/* ADD_INSN(ret, line, putundef); */
-	COMPILE_ERROR(ERROR_ARGS "unsupported: putundef");
-	return COMPILE_NG;
-    }
-    else {
-	ADD_INSN(ret, line, putnil);
-    }
+	if (type == NODE_WHILE) {
+	    compile_branch_condition(iseq, ret, node->nd_cond,
+				     redo_label, end_label);
+	}
+	else if (type == NODE_UNTIL) {
+	    /* 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_INSNL(ret, line, branchif, redo_label);
+	    /* opt_n */
+	}
 
-    ADD_LABEL(ret, break_label);	/* break */
+	ADD_LABEL(ret, end_label);
 
-    if (popped) {
-	ADD_INSN(ret, line, pop);
-    }
+	if (node->nd_state == Qundef) {
+	    /* ADD_INSN(ret, line, putundef); */
+	    rb_bug("unsupported: putundef");
+	}
+	else {
+	    ADD_INSN(ret, line, putnil);
+	}
 
-    ADD_CATCH_ENTRY(CATCH_TYPE_BREAK, redo_label, break_label, NULL,
-		    break_label);
-    ADD_CATCH_ENTRY(CATCH_TYPE_NEXT, redo_label, break_label, NULL,
-		    next_catch_label);
-    ADD_CATCH_ENTRY(CATCH_TYPE_REDO, redo_label, break_label, NULL,
-		    ISEQ_COMPILE_DATA(iseq)->redo_label);
-
-    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;
-    return COMPILE_OK;
-}
+	ADD_LABEL(ret, break_label);	/* break */
 
-static int
-compile_iter(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node, int popped)
-{
-    const int line = nd_line(node);
-    const rb_iseq_t *prevblock = ISEQ_COMPILE_DATA(iseq)->current_block;
-    LABEL *retry_label = NEW_LABEL(line);
-    LABEL *retry_end_l = NEW_LABEL(line);
-    const rb_iseq_t *child_iseq;
-
-    ADD_LABEL(ret, retry_label);
-    if (nd_type(node) == NODE_FOR) {
-	CHECK(COMPILE(ret, "iter caller (for)", node->nd_iter));
-
-	ISEQ_COMPILE_DATA(iseq)->current_block = child_iseq =
-	    NEW_CHILD_ISEQ(node->nd_body, make_name_for_block(iseq),
-			   ISEQ_TYPE_BLOCK, line);
-	ADD_SEND_WITH_BLOCK(ret, line, idEach, INT2FIX(0), child_iseq);
-    }
-    else {
-	ISEQ_COMPILE_DATA(iseq)->current_block = child_iseq =
-	    NEW_CHILD_ISEQ(node->nd_body, make_name_for_block(iseq),
-			   ISEQ_TYPE_BLOCK, line);
-	CHECK(COMPILE(ret, "iter caller", node->nd_iter));
-    }
-    ADD_LABEL(ret, retry_end_l);
+	if (poped) {
+	    ADD_INSN(ret, line, pop);
+	}
 
-    if (popped) {
-	ADD_INSN(ret, line, pop);
-    }
+	ADD_CATCH_ENTRY(CATCH_TYPE_BREAK, redo_label, break_label,
+			0, break_label);
+	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)->current_block = prevblock;
+	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;
+	break;
+      }
+      case NODE_ITER:
+      case NODE_FOR:{
+	VALUE prevblock = iseq->compile_data->current_block;
+	LABEL *retry_label = NEW_LABEL(line);
+	LABEL *retry_end_l = NEW_LABEL(line);
 
-    ADD_CATCH_ENTRY(CATCH_TYPE_BREAK, retry_label, retry_end_l, child_iseq, retry_end_l);
-    return COMPILE_OK;
-}
+	ADD_LABEL(ret, retry_label);
+	if (nd_type(node) == NODE_FOR) {
+	    COMPILE(ret, "iter caller (for)", node->nd_iter);
 
-static int
-compile_for(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node, int popped)
-{
-    const int line = nd_line(node);
-    if (node->nd_var) {
-	/* massign to var in "for"
-	 * args.length == 1 && Array === (tmp = args[0]) ? tmp : args
-	 */
-	const NODE *var = node->nd_var;
-	LABEL *not_single = NEW_LABEL(nd_line(var));
-	LABEL *not_ary = NEW_LABEL(nd_line(var));
-	CHECK(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);
-	return COMPILE_OK;
-    }
-    else {
-	return compile_iter(iseq, ret, node, popped);
-    }
-}
+	    iseq->compile_data->current_block =
+		NEW_CHILD_ISEQVAL(node->nd_body, make_name_for_block(iseq),
+				  ISEQ_TYPE_BLOCK, line);
 
-static int
-compile_break(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node, int popped)
-{
-    const int line = nd_line(node);
-    unsigned long level = 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(iseq)->redo_label);
-	CHECK(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(iseq)->end_label);
-	ADD_ADJUST_RESTORE(ret, splabel);
-
-	if (!popped) {
-	    ADD_INSN(ret, line, putnil);
+	    ADD_SEND_R(ret, line, ID2SYM(idEach), INT2FIX(0),
+		       iseq->compile_data->current_block, INT2FIX(0));
 	}
-    }
-    else if (iseq->body->type == ISEQ_TYPE_BLOCK) {
-      break_by_insn:
-	/* escape from block */
-	CHECK(COMPILE(ret, "break val (block)", node->nd_stts));
-	ADD_INSN1(ret, line, throw, INT2FIX(level | TAG_BREAK));
-	if (popped) {
+	else {
+	    iseq->compile_data->current_block =
+		NEW_CHILD_ISEQVAL(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);
+
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
-    }
-    else if (iseq->body->type == ISEQ_TYPE_EVAL) {
-      break_in_eval:
-	COMPILE_ERROR(ERROR_ARGS "Can't escape from eval with break");
-	return COMPILE_NG;
-    }
-    else {
-	const rb_iseq_t *ip = iseq->body->parent_iseq;
 
-	while (ip) {
-	    if (!ISEQ_COMPILE_DATA(ip)) {
-		ip = 0;
-		break;
-	    }
+	iseq->compile_data->current_block = prevblock;
+
+	ADD_CATCH_ENTRY(CATCH_TYPE_BREAK, retry_label, retry_end_l, 0, retry_end_l);
 
-	    level++;
-	    if (ISEQ_COMPILE_DATA(ip)->redo_label != 0) {
-		level = VM_THROW_NO_ESCAPE_FLAG;
-		goto break_by_insn;
+	break;
+      }
+      case NODE_BREAK:{
+	unsigned long level = 0;
+
+	if (iseq->compile_data->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_ensure_iseq(ret, iseq, 0);
+	    ADD_INSNL(ret, line, jump, iseq->compile_data->end_label);
+	    ADD_ADJUST_RESTORE(ret, splabel);
+
+	    if (!poped) {
+		ADD_INSN(ret, line, putnil);
 	    }
-	    else if (ip->body->type == ISEQ_TYPE_BLOCK) {
-		level <<= VM_THROW_LEVEL_SHIFT;
-		goto break_by_insn;
+	}
+	else if (iseq->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 */ );
+	    if (poped) {
+		ADD_INSN(ret, line, pop);
 	    }
-	    else if (ip->body->type == ISEQ_TYPE_EVAL) {
-		goto break_in_eval;
+	}
+	else if (iseq->type == ISEQ_TYPE_EVAL) {
+	  break_in_eval:
+	    COMPILE_ERROR((ERROR_ARGS "Can't escape from eval with break"));
+	}
+	else {
+	    rb_iseq_t *ip = iseq->parent_iseq;
+	    while (ip) {
+		if (!ip->compile_data) {
+		    ip = 0;
+		    break;
+		}
+
+		level++;
+		if (ip->compile_data->redo_label != 0) {
+		    level = 0x8000;
+		    if (ip->compile_data->loopval_popped == 0) {
+			/* need value */
+			level |= 0x4000;
+		    }
+		    goto break_by_insn;
+		}
+		else if (ip->type == ISEQ_TYPE_BLOCK) {
+		    level <<= 16;
+		    goto break_by_insn;
+		}
+		else if (ip->type == ISEQ_TYPE_EVAL) {
+		    goto break_in_eval;
+		}
+
+		ip = ip->parent_iseq;
 	    }
+	    COMPILE_ERROR((ERROR_ARGS "Invalid break"));
+	}
+	break;
+      }
+      case NODE_NEXT:{
+	unsigned long level = 0;
 
-	    ip = ip->body->parent_iseq;
+	if (iseq->compile_data->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_RESTORE(ret, splabel);
+	    if (!poped) {
+		ADD_INSN(ret, line, putnil);
+	    }
 	}
-	COMPILE_ERROR(ERROR_ARGS "Invalid break");
-	return COMPILE_NG;
-    }
-    return COMPILE_OK;
-}
+	else if (iseq->compile_data->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);
+	    COMPILE(ret, "next val", node->nd_stts);
+	    add_ensure_iseq(ret, iseq, 0);
+	    ADD_INSNL(ret, line, jump, iseq->compile_data->end_label);
+	    ADD_ADJUST_RESTORE(ret, splabel);
 
-static int
-compile_next(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node, int popped)
-{
-    const int line = nd_line(node);
-    unsigned long level = 0;
-
-    if (ISEQ_COMPILE_DATA(iseq)->redo_label != 0) {
-	LABEL *splabel = NEW_LABEL(0);
-	debugs("next in while loop\n");
-	ADD_LABEL(ret, splabel);
-	CHECK(COMPILE(ret, "next val/valid syntax?", node->nd_stts));
-	add_ensure_iseq(ret, iseq, 0);
-	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 (!popped) {
-	    ADD_INSN(ret, line, putnil);
+	    if (!poped) {
+		ADD_INSN(ret, line, putnil);
+	    }
 	}
-    }
-    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(iseq)->start_label);
-	CHECK(COMPILE(ret, "next val", node->nd_stts));
-	add_ensure_iseq(ret, iseq, 0);
-	ADD_INSNL(ret, line, jump, ISEQ_COMPILE_DATA(iseq)->end_label);
-	ADD_ADJUST_RESTORE(ret, splabel);
-	splabel->unremovable = FALSE;
-
-	if (!popped) {
-	    ADD_INSN(ret, line, putnil);
+	else if (iseq->type == ISEQ_TYPE_EVAL) {
+	  next_in_eval:
+	    COMPILE_ERROR((ERROR_ARGS "Can't escape from eval with next"));
 	}
-    }
-    else if (iseq->body->type == ISEQ_TYPE_EVAL) {
-      next_in_eval:
-	COMPILE_ERROR(ERROR_ARGS "Can't escape from eval with next");
-	return COMPILE_NG;
-    }
-    else {
-	const rb_iseq_t *ip = iseq;
+	else {
+	    rb_iseq_t *ip;
+	    ip = iseq;
+	    while (ip) {
+		if (!ip->compile_data) {
+		    ip = 0;
+		    break;
+		}
 
-	while (ip) {
-	    if (!ISEQ_COMPILE_DATA(ip)) {
-		ip = 0;
-		break;
-	    }
+		level = 0x8000 | 0x4000;
+		if (ip->compile_data->redo_label != 0) {
+		    /* while loop */
+		    break;
+		}
+		else if (ip->type == ISEQ_TYPE_BLOCK) {
+		    break;
+		}
+		else if (ip->type == ISEQ_TYPE_EVAL) {
+		    goto next_in_eval;
+		}
 
-	    level = VM_THROW_NO_ESCAPE_FLAG;
-	    if (ISEQ_COMPILE_DATA(ip)->redo_label != 0) {
-		/* while loop */
-		break;
+		ip = ip->parent_iseq;
 	    }
-	    else if (ip->body->type == ISEQ_TYPE_BLOCK) {
-		break;
+	    if (ip != 0) {
+		COMPILE(ret, "next val", node->nd_stts);
+		ADD_INSN1(ret, line, throw, INT2FIX(level | 0x03) /* TAG_NEXT */ );
+
+		if (poped) {
+		    ADD_INSN(ret, line, pop);
+		}
 	    }
-	    else if (ip->body->type == ISEQ_TYPE_EVAL) {
-		goto next_in_eval;
+	    else {
+		COMPILE_ERROR((ERROR_ARGS "Invalid next"));
 	    }
-
-	    ip = ip->body->parent_iseq;
 	}
-	if (ip != 0) {
-	    CHECK(COMPILE(ret, "next val", node->nd_stts));
-	    ADD_INSN1(ret, line, throw, INT2FIX(level | TAG_NEXT));
-
-	    if (popped) {
-		ADD_INSN(ret, line, pop);
+	break;
+      }
+      case NODE_REDO:{
+	if (iseq->compile_data->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_ensure_iseq(ret, iseq, 0);
+	    ADD_INSNL(ret, line, jump, iseq->compile_data->redo_label);
+	    ADD_ADJUST_RESTORE(ret, splabel);
+	    if (!poped) {
+		ADD_INSN(ret, line, putnil);
 	    }
 	}
-	else {
-	    COMPILE_ERROR(ERROR_ARGS "Invalid next");
-	    return COMPILE_NG;
-	}
-    }
-    return COMPILE_OK;
-}
-
-static int
-compile_redo(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node, int popped)
-{
-    const int line = nd_line(node);
-
-    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(iseq)->redo_label);
-	add_ensure_iseq(ret, iseq, 0);
-	ADD_INSNL(ret, line, jump, ISEQ_COMPILE_DATA(iseq)->redo_label);
-	ADD_ADJUST_RESTORE(ret, splabel);
-	if (!popped) {
-	    ADD_INSN(ret, line, putnil);
+	else if (iseq->type == ISEQ_TYPE_EVAL) {
+	  redo_in_eval:
+	    COMPILE_ERROR((ERROR_ARGS "Can't escape from eval with redo"));
 	}
-    }
-    else if (iseq->body->type == ISEQ_TYPE_EVAL) {
-      redo_in_eval:
-	COMPILE_ERROR(ERROR_ARGS "Can't escape from eval with redo");
-	return COMPILE_NG;
-    }
-    else if (ISEQ_COMPILE_DATA(iseq)->start_label) {
-	LABEL *splabel = NEW_LABEL(0);
+	else if (iseq->compile_data->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(iseq)->start_label);
-	ADD_INSNL(ret, line, jump, ISEQ_COMPILE_DATA(iseq)->start_label);
-	ADD_ADJUST_RESTORE(ret, splabel);
+	    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_RESTORE(ret, splabel);
 
-	if (!popped) {
-	    ADD_INSN(ret, line, putnil);
+	    if (!poped) {
+		ADD_INSN(ret, line, putnil);
+	    }
 	}
-    }
-    else {
-	const rb_iseq_t *ip = iseq;
-	const unsigned long level = VM_THROW_NO_ESCAPE_FLAG;
+	else {
+	    rb_iseq_t *ip;
+	    unsigned long level;
+	    level = 0x8000 | 0x4000;
+	    ip = iseq;
+	    while (ip) {
+		if (!ip->compile_data) {
+		    ip = 0;
+		    break;
+		}
 
-	while (ip) {
-	    if (!ISEQ_COMPILE_DATA(ip)) {
-		ip = 0;
-		break;
-	    }
+		if (ip->compile_data->redo_label != 0) {
+		    break;
+		}
+		else if (ip->type == ISEQ_TYPE_BLOCK) {
+		    break;
+		}
+		else if (ip->type == ISEQ_TYPE_EVAL) {
+		    goto redo_in_eval;
+		}
 
-	    if (ISEQ_COMPILE_DATA(ip)->redo_label != 0) {
-		break;
+		ip = ip->parent_iseq;
 	    }
-	    else if (ip->body->type == ISEQ_TYPE_BLOCK) {
-		break;
+	    if (ip != 0) {
+		ADD_INSN(ret, line, putnil);
+		ADD_INSN1(ret, line, throw, INT2FIX(level | 0x05) /* TAG_REDO */ );
+
+		if (poped) {
+		    ADD_INSN(ret, line, pop);
+		}
 	    }
-	    else if (ip->body->type == ISEQ_TYPE_EVAL) {
-		goto redo_in_eval;
+	    else {
+		COMPILE_ERROR((ERROR_ARGS "Invalid redo"));
 	    }
-
-	    ip = ip->body->parent_iseq;
 	}
-	if (ip != 0) {
+	break;
+      }
+      case NODE_RETRY:{
+	if (iseq->type == ISEQ_TYPE_RESCUE) {
 	    ADD_INSN(ret, line, putnil);
-	    ADD_INSN1(ret, line, throw, INT2FIX(level | TAG_REDO));
+	    ADD_INSN1(ret, line, throw, INT2FIX(0x04) /* TAG_RETRY */ );
 
-	    if (popped) {
+	    if (poped) {
 		ADD_INSN(ret, line, pop);
 	    }
 	}
 	else {
-	    COMPILE_ERROR(ERROR_ARGS "Invalid redo");
-	    return COMPILE_NG;
+	    COMPILE_ERROR((ERROR_ARGS "Invalid retry"));
 	}
-    }
-    return COMPILE_OK;
-}
-
-static int
-compile_retry(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node, int popped)
-{
-    const int line = nd_line(node);
-
-    if (iseq->body->type == ISEQ_TYPE_RESCUE) {
-	ADD_INSN(ret, line, putnil);
-	ADD_INSN1(ret, line, throw, INT2FIX(TAG_RETRY));
-
-	if (popped) {
+	break;
+      }
+      case NODE_BEGIN:{
+	COMPILE_(ret, "NODE_BEGIN", node->nd_body, poped);
+	break;
+      }
+      case NODE_RESCUE:{
+	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);
+
+	ADD_LABEL(ret, lstart);
+	COMPILE(ret, "rescue head", node->nd_head);
+	ADD_LABEL(ret, lend);
+	if (node->nd_else) {
 	    ADD_INSN(ret, line, pop);
+	    COMPILE(ret, "rescue else", node->nd_else);
 	}
-    }
-    else {
-	COMPILE_ERROR(ERROR_ARGS "Invalid retry");
-	return COMPILE_NG;
-    }
-    return COMPILE_OK;
-}
-
-static int
-compile_rescue(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node, int popped)
-{
-    const int line = nd_line(node);
-    LABEL *lstart = NEW_LABEL(line);
-    LABEL *lend = NEW_LABEL(line);
-    LABEL *lcont = NEW_LABEL(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);
-    CHECK(COMPILE(ret, "rescue head", node->nd_head));
-    ADD_LABEL(ret, lend);
-    if (node->nd_else) {
-	ADD_INSN(ret, line, pop);
-	CHECK(COMPILE(ret, "rescue else", node->nd_else));
-    }
-    ADD_INSN(ret, line, nop);
-    ADD_LABEL(ret, lcont);
-
-    if (popped) {
-	ADD_INSN(ret, line, pop);
-    }
+	ADD_INSN(ret, line, nop);
+	ADD_LABEL(ret, lcont);
 
-    /* register catch entry */
-    ADD_CATCH_ENTRY(CATCH_TYPE_RESCUE, lstart, lend, rescue, lcont);
-    ADD_CATCH_ENTRY(CATCH_TYPE_RETRY, lend, lcont, NULL, lstart);
-    return COMPILE_OK;
-}
+	if (poped) {
+	    ADD_INSN(ret, line, pop);
+	}
 
-static int
-compile_resbody(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node, int popped)
-{
-    const int line = nd_line(node);
-    const NODE *resq = node;
-    const NODE *narg;
-    LABEL *label_miss, *label_hit;
-
-    while (resq) {
-	label_miss = NEW_LABEL(line);
-	label_hit = NEW_LABEL(line);
-
-	narg = resq->nd_args;
-	if (narg) {
-	    switch (nd_type(narg)) {
-	      case NODE_ARRAY:
-		while (narg) {
-		    ADD_GETLOCAL(ret, line, LVAR_ERRINFO, 0);
-		    CHECK(COMPILE(ret, "rescue arg", narg->nd_head));
-		    ADD_INSN1(ret, line, checkmatch, INT2FIX(VM_CHECKMATCH_TYPE_RESCUE));
+	/* register catch entry */
+	ADD_CATCH_ENTRY(CATCH_TYPE_RESCUE, lstart, lend, rescue, lcont);
+	ADD_CATCH_ENTRY(CATCH_TYPE_RETRY, lend, lcont, 0, lstart);
+	break;
+      }
+      case NODE_RESBODY:{
+	NODE *resq = node;
+	NODE *narg;
+	LABEL *label_miss, *label_hit;
+
+	while (resq) {
+	    label_miss = NEW_LABEL(line);
+	    label_hit = NEW_LABEL(line);
+
+	    narg = resq->nd_args;
+	    if (narg) {
+		switch (nd_type(narg)) {
+		  case NODE_ARRAY:
+		    while (narg) {
+			ADD_INSN2(ret, line, getlocal, INT2FIX(2), INT2FIX(0));
+			COMPILE(ret, "rescue arg", narg->nd_head);
+			ADD_INSN1(ret, line, checkmatch, INT2FIX(VM_CHECKMATCH_TYPE_RESCUE));
+			ADD_INSNL(ret, line, branchif, label_hit);
+			narg = narg->nd_next;
+		    }
+		    break;
+		  case NODE_SPLAT:
+		  case NODE_ARGSCAT:
+		  case NODE_ARGSPUSH:
+		    ADD_INSN2(ret, line, getlocal, INT2FIX(2), INT2FIX(0));
+		    COMPILE(ret, "rescue/cond splat", narg);
+		    ADD_INSN1(ret, line, checkmatch, INT2FIX(VM_CHECKMATCH_TYPE_RESCUE | VM_CHECKMATCH_ARRAY));
 		    ADD_INSNL(ret, line, branchif, label_hit);
-		    narg = narg->nd_next;
+		    break;
+		  default:
+		    rb_bug("NODE_RESBODY: unknown node (%s)",
+			   ruby_node_name(nd_type(narg)));
 		}
-		break;
-	      case NODE_SPLAT:
-	      case NODE_ARGSCAT:
-	      case NODE_ARGSPUSH:
-		ADD_GETLOCAL(ret, line, LVAR_ERRINFO, 0);
-		CHECK(COMPILE(ret, "rescue/cond splat", narg));
-		ADD_INSN1(ret, line, checkmatch, INT2FIX(VM_CHECKMATCH_TYPE_RESCUE | VM_CHECKMATCH_ARRAY));
+	    }
+	    else {
+		ADD_INSN2(ret, line, getlocal, INT2FIX(2), INT2FIX(0));
+		ADD_INSN1(ret, line, putobject, rb_eStandardError);
+		ADD_INSN1(ret, line, checkmatch, INT2FIX(VM_CHECKMATCH_TYPE_RESCUE));
 		ADD_INSNL(ret, line, branchif, label_hit);
-		break;
-	      default:
-		UNKNOWN_NODE("NODE_RESBODY", narg, COMPILE_NG);
 	    }
+	    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) {
+		ADD_INSN(ret, line, nop);
+	    }
+	    ADD_INSN(ret, line, leave);
+	    ADD_LABEL(ret, label_miss);
+	    resq = resq->nd_head;
 	}
-	else {
-	    ADD_GETLOCAL(ret, line, LVAR_ERRINFO, 0);
-	    ADD_INSN1(ret, line, putobject, rb_eStandardError);
-	    ADD_INSN1(ret, line, checkmatch, INT2FIX(VM_CHECKMATCH_TYPE_RESCUE));
-	    ADD_INSNL(ret, line, branchif, label_hit);
-	}
-	ADD_INSNL(ret, line, jump, label_miss);
-	ADD_LABEL(ret, label_hit);
-	CHECK(COMPILE(ret, "resbody body", resq->nd_body));
-	if (ISEQ_COMPILE_DATA(iseq)->option->tailcall_optimization) {
-	    ADD_INSN(ret, line, nop);
-	}
-	ADD_INSN(ret, line, leave);
-	ADD_LABEL(ret, label_miss);
-	resq = resq->nd_head;
-    }
-    return COMPILE_OK;
-}
-
-static int
-compile_ensure(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node, int popped)
-{
-    const int line = nd_line(node);
-    DECL_ANCHOR(ensr);
-    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);
-    LINK_ELEMENT *last;
-    int last_leave = 0;
-    struct ensure_range er;
-    struct iseq_compile_data_ensure_node_stack enl;
-    struct ensure_range *erange;
+	break;
+      }
+      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);
+	LABEL *lstart = NEW_LABEL(line);
+	LABEL *lend = NEW_LABEL(line);
+	LABEL *lcont = NEW_LABEL(line);
+	struct ensure_range er;
+	struct iseq_compile_data_ensure_node_stack enl;
+	struct ensure_range *erange;
 
-    INIT_ANCHOR(ensr);
-    CHECK(COMPILE_POPPED(ensr, "ensure ensr", node->nd_ensr));
-    last = ensr->last;
-    last_leave = last && IS_INSN(last) && IS_INSN_ID(last, leave);
+	INIT_ANCHOR(ensr);
+	COMPILE_POPED(ensr, "ensure ensr", node->nd_ensr);
 
-    er.begin = lstart;
-    er.end = lend;
-    er.next = 0;
-    push_ensure_entry(iseq, &enl, &er, node->nd_ensr);
+	er.begin = lstart;
+	er.end = lend;
+	er.next = 0;
+	push_ensure_entry(iseq, &enl, &er, node->nd_ensr);
 
-    ADD_LABEL(ret, lstart);
-    CHECK(COMPILE_(ret, "ensure head", node->nd_head, (popped | last_leave)));
-    ADD_LABEL(ret, lend);
-    if (LIST_INSN_SIZE_ZERO(ensr)) {
-	ADD_INSN(ret, line, nop);
-    }
-    else {
-	ADD_SEQ(ret, ensr);
-	if (!popped && last_leave) {
-	    ADD_INSN(ret, line, putnil);
+	ADD_LABEL(ret, lstart);
+	COMPILE_(ret, "ensure head", node->nd_head, poped);
+	ADD_LABEL(ret, lend);
+	if (ensr->anchor.next == 0) {
+	    ADD_INSN(ret, line, nop);
 	}
-    }
-    ADD_LABEL(ret, lcont);
-    if (last_leave) ADD_INSN(ret, line, pop);
+	else {
+	    ADD_SEQ(ret, ensr);
+	}
+	ADD_LABEL(ret, lcont);
 
-    erange = ISEQ_COMPILE_DATA(iseq)->ensure_node_stack->erange;
-    if (lstart->link.next != &lend->link) {
+	erange = iseq->compile_data->ensure_node_stack->erange;
 	while (erange) {
 	    ADD_CATCH_ENTRY(CATCH_TYPE_ENSURE, erange->begin, erange->end,
 			    ensure, lcont);
 	    erange = erange->next;
 	}
-    }
-
-    ISEQ_COMPILE_DATA(iseq)->ensure_node_stack = enl.prev;
-    return COMPILE_OK;
-}
-
-static int
-compile_return(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node, int popped)
-{
-    const int line = nd_line(node);
-
-    if (iseq) {
-	enum iseq_type type = iseq->body->type;
-	const rb_iseq_t *is = iseq;
-	enum iseq_type t = type;
-	const NODE *retval = node->nd_stts;
-	LABEL *splabel = 0;
-
-	while (t == ISEQ_TYPE_RESCUE || t == ISEQ_TYPE_ENSURE) {
-	    if (!(is = is->body->parent_iseq)) break;
-	    t = is->body->type;
-	}
-	switch (t) {
-	  case ISEQ_TYPE_TOP:
-	  case ISEQ_TYPE_MAIN:
-	    if (is == iseq) {
-		/* plain top-level, leave directly */
-		type = ISEQ_TYPE_METHOD;
-	    }
-	    break;
-	  default:
-	    break;
-	}
-
-	if (type == ISEQ_TYPE_METHOD) {
-	    splabel = NEW_LABEL(0);
-	    ADD_LABEL(ret, splabel);
-	    ADD_ADJUST(ret, line, 0);
-	}
-
-	CHECK(COMPILE(ret, "return nd_stts (return val)", retval));
-
-	if (type == ISEQ_TYPE_METHOD) {
-	    add_ensure_iseq(ret, iseq, 1);
-	    ADD_TRACE(ret, RUBY_EVENT_RETURN);
-	    ADD_INSN(ret, line, leave);
-	    ADD_ADJUST_RESTORE(ret, splabel);
-
-	    if (!popped) {
-		ADD_INSN(ret, line, putnil);
-	    }
-	}
-	else {
-	    ADD_INSN1(ret, line, throw, INT2FIX(TAG_RETURN));
-	    if (popped) {
-		ADD_INSN(ret, line, pop);
-	    }
-	}
-    }
-    return COMPILE_OK;
-}
 
-static int iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, int popped);
-/**
-  compile each node
-
-  self:  InstructionSequence
-  node:  Ruby compiled node
-  popped: This node will be popped
- */
-static int
-iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, const NODE *node, int popped)
-{
-    if (node == 0) {
-	if (!popped) {
-	    int lineno = ISEQ_COMPILE_DATA(iseq)->last_line;
-	    if (lineno == 0) lineno = FIX2INT(rb_iseq_first_lineno(iseq));
-	    debugs("node: NODE_NIL(implicit)\n");
-	    ADD_INSN(ret, lineno, putnil);
-	}
-	return COMPILE_OK;
-    }
-    return iseq_compile_each0(iseq, ret, node, popped);
-}
-
-static int
-iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, int popped)
-{
-    const int line = (int)nd_line(node);
-    const enum node_type type = nd_type(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_LINE_COVERAGE(ret, line);
-	    ADD_TRACE(ret, RUBY_EVENT_LINE);
-	}
-    }
-
-    debug_node_start(node);
-#undef BEFORE_RETURN
-#define BEFORE_RETURN debug_node_end()
-
-    switch (type) {
-      case NODE_BLOCK:{
-	while (node && nd_type(node) == NODE_BLOCK) {
-	    CHECK(COMPILE_(ret, "BLOCK body", node->nd_head,
-			   (node->nd_next ? 1 : popped)));
-	    node = node->nd_next;
-	}
-	if (node) {
-	    CHECK(COMPILE_(ret, "BLOCK next", node->nd_next, popped));
-	}
-	break;
-      }
-      case NODE_IF:
-      case NODE_UNLESS:
-	CHECK(compile_if(iseq, ret, node, popped, type));
-	break;
-      case NODE_CASE:
-	CHECK(compile_case(iseq, ret, node, popped));
-	break;
-      case NODE_CASE2:
-	CHECK(compile_case2(iseq, ret, node, popped));
-	break;
-      case NODE_WHILE:
-      case NODE_UNTIL:
-	CHECK(compile_loop(iseq, ret, node, popped, type));
-	break;
-      case NODE_FOR:
-	CHECK(compile_for(iseq, ret, node, popped));
-	break;
-      case NODE_ITER:
-	CHECK(compile_iter(iseq, ret, node, popped));
-	break;
-      case NODE_BREAK:
-	CHECK(compile_break(iseq, ret, node, popped));
-	break;
-      case NODE_NEXT:
-	CHECK(compile_next(iseq, ret, node, popped));
-	break;
-      case NODE_REDO:
-	CHECK(compile_redo(iseq, ret, node, popped));
-	break;
-      case NODE_RETRY:
-	CHECK(compile_retry(iseq, ret, node, popped));
-	break;
-      case NODE_BEGIN:{
-	CHECK(COMPILE_(ret, "NODE_BEGIN", node->nd_body, popped));
+	iseq->compile_data->ensure_node_stack = enl.prev;
 	break;
       }
-      case NODE_RESCUE:
-	CHECK(compile_rescue(iseq, ret, node, popped));
-	break;
-      case NODE_RESBODY:
-	CHECK(compile_resbody(iseq, ret, node, popped));
-	break;
-      case NODE_ENSURE:
-	CHECK(compile_ensure(iseq, ret, node, popped));
-	break;
 
       case NODE_AND:
       case NODE_OR:{
 	LABEL *end_label = NEW_LABEL(line);
-	CHECK(COMPILE(ret, "nd_1st", node->nd_1st));
-	if (!popped) {
+	COMPILE(ret, "nd_1st", node->nd_1st);
+	if (!poped) {
 	    ADD_INSN(ret, line, dup);
 	}
 	if (type == NODE_AND) {
@@ -5552,77 +3880,76 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	else {
 	    ADD_INSNL(ret, line, branchif, end_label);
 	}
-	if (!popped) {
+	if (!poped) {
 	    ADD_INSN(ret, line, pop);
 	}
-	CHECK(COMPILE_(ret, "nd_2nd", node->nd_2nd, popped));
+	COMPILE_(ret, "nd_2nd", node->nd_2nd, poped);
 	ADD_LABEL(ret, end_label);
 	break;
       }
 
       case NODE_MASGN:{
-	compile_massign(iseq, ret, node, popped);
+	compile_massign(iseq, ret, node, poped);
 	break;
       }
 
       case NODE_LASGN:{
 	ID id = node->nd_vid;
-	int idx = iseq->body->local_iseq->body->local_table_size - get_local_var_idx(iseq, id);
+	int idx = iseq->local_iseq->local_size - get_local_var_idx(iseq, id);
 
 	debugs("lvar: %s idx: %d\n", rb_id2name(id), idx);
-	CHECK(COMPILE(ret, "rvalue", node->nd_value));
+	COMPILE(ret, "rvalue", node->nd_value);
 
-	if (!popped) {
+	if (!poped) {
 	    ADD_INSN(ret, line, dup);
 	}
-	ADD_SETLOCAL(ret, line, idx, get_lvar_level(iseq));
+	ADD_INSN2(ret, line, setlocal, INT2FIX(idx), INT2FIX(get_lvar_level(iseq)));
+
 	break;
       }
       case NODE_DASGN:
       case NODE_DASGN_CURR:{
 	int idx, lv, ls;
-	ID id = node->nd_vid;
-	CHECK(COMPILE(ret, "dvalue", node->nd_value));
-	debugi("dassn id", rb_id2str(id) ? id : '*');
+	COMPILE(ret, "dvalue", node->nd_value);
+	debugp_param("dassn id", rb_str_new2(rb_id2name(node->nd_vid) ? rb_id2name(node->nd_vid) : "*"));
 
-	if (!popped) {
+	if (!poped) {
 	    ADD_INSN(ret, line, dup);
 	}
 
-	idx = get_dyna_var_idx(iseq, id, &lv, &ls);
+	idx = get_dyna_var_idx(iseq, node->nd_vid, &lv, &ls);
 
 	if (idx < 0) {
-	    COMPILE_ERROR(ERROR_ARGS "NODE_DASGN(_CURR): unknown id (%"PRIsVALUE")",
-			  rb_id2str(id));
-	    goto ng;
+	    rb_bug("NODE_DASGN(_CURR): unknown id (%s)", rb_id2name(node->nd_vid));
 	}
-	ADD_SETLOCAL(ret, line, ls - idx, lv);
+
+	ADD_INSN2(ret, line, setlocal, INT2FIX(ls - idx), INT2FIX(lv));
 	break;
       }
       case NODE_GASGN:{
-	CHECK(COMPILE(ret, "lvalue", node->nd_value));
+	COMPILE(ret, "lvalue", node->nd_value);
 
-	if (!popped) {
+	if (!poped) {
 	    ADD_INSN(ret, line, dup);
 	}
 	ADD_INSN1(ret, line, setglobal,
 		  ((VALUE)node->nd_entry | 1));
 	break;
       }
-      case NODE_IASGN:{
-	CHECK(COMPILE(ret, "lvalue", node->nd_value));
-	if (!popped) {
+      case NODE_IASGN:
+      case NODE_IASGN2:{
+	COMPILE(ret, "lvalue", node->nd_value);
+	if (!poped) {
 	    ADD_INSN(ret, line, dup);
 	}
 	ADD_INSN2(ret, line, setinstancevariable,
-		  ID2SYM(node->nd_vid),
-		  get_ivar_ic_value(iseq,node->nd_vid));
+		  ID2SYM(node->nd_vid), INT2FIX(iseq->is_size++));
 	break;
       }
       case NODE_CDECL:{
-	CHECK(COMPILE(ret, "lvalue", node->nd_value));
+	COMPILE(ret, "lvalue", node->nd_value);
 
-	if (!popped) {
+	if (!poped) {
 	    ADD_INSN(ret, line, dup);
 	}
 
@@ -5638,8 +3965,8 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	break;
       }
       case NODE_CVASGN:{
-	CHECK(COMPILE(ret, "cvasgn val", node->nd_value));
-	if (!popped) {
+	COMPILE(ret, "cvasgn val", node->nd_value);
+	if (!poped) {
 	    ADD_INSN(ret, line, dup);
 	}
 	ADD_INSN1(ret, line, setclassvariable,
@@ -5649,8 +3976,7 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
       case NODE_OP_ASGN1: {
 	DECL_ANCHOR(args);
 	VALUE argc;
-	unsigned int flag = 0;
-	unsigned int asgnflag = 0;
+	VALUE flag = 0;
 	ID id = node->nd_mid;
 	int boff = 0;
 
@@ -5677,10 +4003,10 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	 *              nd_mid
 	 */
 
-	if (!popped) {
+	if (!poped) {
 	    ADD_INSN(ret, line, putnil);
 	}
-	asgnflag = COMPILE_RECV(ret, "NODE_OP_ASGN1 recv", node);
+	COMPILE(ret, "NODE_OP_ASGN1 recv", node->nd_recv);
 	switch (nd_type(node->nd_args->nd_head)) {
 	  case NODE_ZARRAY:
 	    argc = INT2FIX(0);
@@ -5689,13 +4015,11 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	    boff = 1;
 	  default:
 	    INIT_ANCHOR(args);
-	    argc = setup_args(iseq, args, node->nd_args->nd_head, &flag, NULL);
-	    CHECK(!NIL_P(argc));
+	    argc = setup_args(iseq, args, node->nd_args->nd_head, &flag);
 	    ADD_SEQ(ret, args);
 	}
 	ADD_INSN1(ret, line, dupn, FIXNUM_INC(argc, 1 + boff));
-	ADD_SEND_WITH_FLAG(ret, line, idAREF, argc, INT2FIX(flag));
-	flag |= asgnflag;
+	ADD_SEND_R(ret, line, ID2SYM(idAREF), argc, Qfalse, LONG2FIX(flag));
 
 	if (id == 0 || id == 1) {
 	    /* 0: or, 1: and
@@ -5721,8 +4045,8 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	    }
 	    ADD_INSN(ret, line, pop);
 
-	    CHECK(COMPILE(ret, "NODE_OP_ASGN1 args->body: ", node->nd_args->nd_body));
-	    if (!popped) {
+	    COMPILE(ret, "NODE_OP_ASGN1 args->body: ", node->nd_args->nd_body);
+	    if (!poped) {
 		ADD_INSN1(ret, line, setn, FIXNUM_INC(argc, 2+boff));
 	    }
 	    if (flag & VM_CALL_ARGS_SPLAT) {
@@ -5738,26 +4062,28 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 		    ADD_INSN(ret, line, pop);
 		    ADD_INSN(ret, line, pop);
 		}
-		ADD_SEND_WITH_FLAG(ret, line, idASET, argc, INT2FIX(flag));
+		ADD_SEND_R(ret, line, ID2SYM(idASET),
+			   argc, Qfalse, LONG2FIX(flag));
 	    }
 	    else {
 		if (boff > 0)
 		    ADD_INSN(ret, line, swap);
-		ADD_SEND_WITH_FLAG(ret, line, idASET, FIXNUM_INC(argc, 1), INT2FIX(flag));
+		ADD_SEND_R(ret, line, ID2SYM(idASET),
+			   FIXNUM_INC(argc, 1), Qfalse, LONG2FIX(flag));
 	    }
 	    ADD_INSN(ret, line, pop);
 	    ADD_INSNL(ret, line, jump, lfin);
 	    ADD_LABEL(ret, label);
-	    if (!popped) {
+	    if (!poped) {
 		ADD_INSN1(ret, line, setn, FIXNUM_INC(argc, 2+boff));
 	    }
 	    ADD_INSN1(ret, line, adjuststack, FIXNUM_INC(argc, 2+boff));
 	    ADD_LABEL(ret, lfin);
 	}
 	else {
-	    CHECK(COMPILE(ret, "NODE_OP_ASGN1 args->body: ", node->nd_args->nd_body));
-	    ADD_SEND(ret, line, id, INT2FIX(1));
-	    if (!popped) {
+	    COMPILE(ret, "NODE_OP_ASGN1 args->body: ", node->nd_args->nd_body);
+	    ADD_SEND(ret, line, ID2SYM(id), INT2FIX(1));
+	    if (!poped) {
 		ADD_INSN1(ret, line, setn, FIXNUM_INC(argc, 2+boff));
 	    }
 	    if (flag & VM_CALL_ARGS_SPLAT) {
@@ -5773,12 +4099,14 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 		    ADD_INSN(ret, line, pop);
 		    ADD_INSN(ret, line, pop);
 		}
-		ADD_SEND_WITH_FLAG(ret, line, idASET, argc, INT2FIX(flag));
+		ADD_SEND_R(ret, line, ID2SYM(idASET),
+			   argc, Qfalse, LONG2FIX(flag));
 	    }
 	    else {
 		if (boff > 0)
 		    ADD_INSN(ret, line, swap);
-		ADD_SEND_WITH_FLAG(ret, line, idASET, FIXNUM_INC(argc, 1), INT2FIX(flag));
+		ADD_SEND_R(ret, line, ID2SYM(idASET),
+			   FIXNUM_INC(argc, 1), Qfalse, LONG2FIX(flag));
 	    }
 	    ADD_INSN(ret, line, pop);
 	}
@@ -5787,11 +4115,8 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
       }
       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
@@ -5834,14 +4159,10 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 
 	*/
 
-	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);
-	}
+	COMPILE(ret, "NODE_OP_ASGN2#recv", node->nd_recv);
 	ADD_INSN(ret, line, dup);
-	ADD_SEND(ret, line, vid, INT2FIX(0));
+	ADD_SEND(ret, line, ID2SYM(node->nd_next->nd_vid),
+		 INT2FIX(0));
 
 	if (atype == 0 || atype == 1) {	/* 0: OR or 1: AND */
 	    ADD_INSN(ret, line, dup);
@@ -5852,10 +4173,11 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 		ADD_INSNL(ret, line, branchunless, lcfin);
 	    }
 	    ADD_INSN(ret, line, pop);
-	    CHECK(COMPILE(ret, "NODE_OP_ASGN2 val", node->nd_value));
+	    COMPILE(ret, "NODE_OP_ASGN2 val", node->nd_value);
 	    ADD_INSN(ret, line, swap);
 	    ADD_INSN1(ret, line, topn, INT2FIX(1));
-	    ADD_SEND_WITH_FLAG(ret, line, aid, INT2FIX(1), INT2FIX(asgnflag));
+	    ADD_SEND(ret, line, ID2SYM(node->nd_next->nd_aid),
+		     INT2FIX(1));
 	    ADD_INSNL(ret, line, jump, lfin);
 
 	    ADD_LABEL(ret, lcfin);
@@ -5863,29 +4185,22 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 
 	    ADD_LABEL(ret, lfin);
 	    ADD_INSN(ret, line, pop);
-	    if (lskip) {
-		ADD_LABEL(ret, lskip);
-	    }
-	    if (popped) {
+	    if (poped) {
 		/* we can apply more optimize */
 		ADD_INSN(ret, line, pop);
 	    }
 	}
 	else {
-	    CHECK(COMPILE(ret, "NODE_OP_ASGN2 val", node->nd_value));
-	    ADD_SEND(ret, line, atype, INT2FIX(1));
-	    if (!popped) {
+	    COMPILE(ret, "NODE_OP_ASGN2 val", node->nd_value);
+	    ADD_SEND(ret, line, ID2SYM(node->nd_next->nd_mid),
+		     INT2FIX(1));
+	    if (!poped) {
 		ADD_INSN(ret, line, swap);
 		ADD_INSN1(ret, line, topn, INT2FIX(1));
 	    }
-	    ADD_SEND_WITH_FLAG(ret, line, aid, INT2FIX(1), INT2FIX(asgnflag));
-	    if (lskip && popped) {
-		ADD_LABEL(ret, lskip);
-	    }
+	    ADD_SEND(ret, line, ID2SYM(node->nd_next->nd_aid),
+		     INT2FIX(1));
 	    ADD_INSN(ret, line, pop);
-	    if (lskip && !popped) {
-		ADD_LABEL(ret, lskip);
-	    }
 	}
 	break;
       }
@@ -5899,12 +4214,14 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	    ADD_INSN1(ret, line, putobject, rb_cObject);
 	    break;
 	  case NODE_COLON2:
-	    CHECK(COMPILE(ret, "NODE_OP_CDECL/colon2#nd_head", node->nd_head->nd_head));
+	    COMPILE(ret, "NODE_OP_CDECL/colon2#nd_head", node->nd_head->nd_head);
 	    break;
 	  default:
-	    COMPILE_ERROR(ERROR_ARGS "%s: invalid node in NODE_OP_CDECL",
-			  ruby_node_name(nd_type(node->nd_head)));
-	    goto ng;
+	    do {
+		COMPILE_ERROR((ERROR_ARGS "%s: invalid node in NODE_OP_CDECL",
+			       ruby_node_name(nd_type(node->nd_head))));
+	    } while (0);
+	    return COMPILE_NG;
 	}
 	mid = node->nd_head->nd_mid;
 	/* cref */
@@ -5920,17 +4237,17 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 
 	if (node->nd_aid == 0 || node->nd_aid == 1) {
 	    lfin = NEW_LABEL(line);
-	    if (!popped) ADD_INSN(ret, line, dup); /* cref [obj] obj */
+	    if (!poped) ADD_INSN(ret, line, dup); /* cref [obj] obj */
 	    if (node->nd_aid == 0)
 		ADD_INSNL(ret, line, branchif, lfin);
 	    else
 		ADD_INSNL(ret, line, branchunless, lfin);
 	    /* cref [obj] */
-	    if (!popped) ADD_INSN(ret, line, pop); /* cref */
+	    if (!poped) ADD_INSN(ret, line, pop); /* cref */
 	    if (lassign) ADD_LABEL(ret, lassign);
-	    CHECK(COMPILE(ret, "NODE_OP_CDECL#nd_value", node->nd_value));
+	    COMPILE(ret, "NODE_OP_CDECL#nd_value", node->nd_value);
 	    /* cref value */
-	    if (popped)
+	    if (poped)
 		ADD_INSN1(ret, line, topn, INT2FIX(1)); /* cref value cref */
 	    else {
 		ADD_INSN1(ret, line, dupn, INT2FIX(2)); /* cref value cref value */
@@ -5938,16 +4255,16 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	    }
 	    ADD_INSN1(ret, line, setconstant, ID2SYM(mid)); /* cref [value] */
 	    ADD_LABEL(ret, lfin);			    /* cref [value] */
-	    if (!popped) ADD_INSN(ret, line, swap); /* [value] cref */
+	    if (!poped) ADD_INSN(ret, line, swap); /* [value] cref */
 	    ADD_INSN(ret, line, pop); /* [value] */
 	}
 	else {
-	    CHECK(COMPILE(ret, "NODE_OP_CDECL#nd_value", node->nd_value));
+	    COMPILE(ret, "NODE_OP_CDECL#nd_value", node->nd_value);
 	    /* cref obj value */
-	    ADD_CALL(ret, line, node->nd_aid, INT2FIX(1));
+	    ADD_CALL(ret, line, ID2SYM(node->nd_aid), INT2FIX(1));
 	    /* cref value */
 	    ADD_INSN(ret, line, swap); /* value cref */
-	    if (!popped) {
+	    if (!poped) {
 		ADD_INSN1(ret, line, topn, INT2FIX(1)); /* value cref value */
 		ADD_INSN(ret, line, swap); /* value value cref */
 	    }
@@ -5975,7 +4292,7 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	    lassign = NEW_LABEL(line);
 	}
 
-	CHECK(COMPILE(ret, "NODE_OP_ASGN_AND/OR#nd_head", node->nd_head));
+	COMPILE(ret, "NODE_OP_ASGN_AND/OR#nd_head", node->nd_head);
 	ADD_INSN(ret, line, dup);
 
 	if (nd_type(node) == NODE_OP_ASGN_AND) {
@@ -5987,56 +4304,27 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 
 	ADD_INSN(ret, line, pop);
 	ADD_LABEL(ret, lassign);
-	CHECK(COMPILE(ret, "NODE_OP_ASGN_AND/OR#nd_value", node->nd_value));
+	COMPILE(ret, "NODE_OP_ASGN_AND/OR#nd_value", node->nd_value);
 	ADD_LABEL(ret, lfin);
 
-	if (popped) {
+	if (poped) {
 	    /* we can apply more optimize */
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
       case NODE_CALL:
-      case NODE_OPCALL:
-	/* 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_mid == idUMinus) &&
-	    node->nd_args == NULL &&
-	    ISEQ_COMPILE_DATA(iseq)->current_block == NULL &&
-	    ISEQ_COMPILE_DATA(iseq)->option->specialized_instruction) {
-	    VALUE str = freeze_literal(iseq, node->nd_recv->nd_lit);
-	    if (node->nd_mid == idUMinus) {
-		ADD_INSN1(ret, line, opt_str_uminus, str);
-	    }
-	    else {
-		ADD_INSN1(ret, line, opt_str_freeze, str);
-	    }
-	    if (popped) {
-		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 = freeze_literal(iseq, node->nd_args->nd_head->nd_lit);
-	    CHECK(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 (popped) {
+	    node->nd_mid == idFreeze && node->nd_args == NULL)
+	{
+	    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;
 	}
-      case NODE_QCALL:
       case NODE_FCALL:
       case NODE_VCALL:{		/* VCALL: variable or call */
 	/*
@@ -6046,15 +4334,11 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	*/
 	DECL_ANCHOR(recv);
 	DECL_ANCHOR(args);
-	LABEL *else_label = 0;
-	LABEL *end_label = 0;
-	VALUE branches = 0;
 	ID mid = node->nd_mid;
 	VALUE argc;
-	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;
+	VALUE flag = 0;
+	VALUE parent_block = iseq->compile_data->current_block;
+	iseq->compile_data->current_block = Qfalse;
 
 	INIT_ANCHOR(recv);
 	INIT_ANCHOR(args);
@@ -6087,17 +4371,17 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 		(mid == goto_id || mid == label_id)) {
 		LABEL *label;
 		st_data_t data;
-		st_table *labels_table = ISEQ_COMPILE_DATA(iseq)->labels_table;
-		VALUE label_name;
+		st_table *labels_table = iseq->compile_data->labels_table;
+		ID label_name;
 
 		if (!labels_table) {
 		    labels_table = st_init_numtable();
-		    ISEQ_COMPILE_DATA(iseq)->labels_table = labels_table;
+		    iseq->compile_data->labels_table = labels_table;
 		}
 		if (nd_type(node->nd_args->nd_head) == NODE_LIT &&
 		    SYMBOL_P(node->nd_args->nd_head->nd_lit)) {
 
-		    label_name = node->nd_args->nd_head->nd_lit;
+		    label_name = SYM2ID(node->nd_args->nd_head->nd_lit);
 		    if (!st_lookup(labels_table, (st_data_t)label_name, &data)) {
 			label = NEW_LABEL(line);
 			label->position = line;
@@ -6108,8 +4392,7 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 		    }
 		}
 		else {
-		    COMPILE_ERROR(ERROR_ARGS "invalid goto/label format");
-		    goto ng;
+		    COMPILE_ERROR((ERROR_ARGS "invalid goto/label format"));
 		}
 
 
@@ -6124,26 +4407,16 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	}
 #endif
 	/* receiver */
-	if (type == NODE_CALL || type == NODE_OPCALL || type == NODE_QCALL) {
-	    CHECK(COMPILE(recv, "recv", node->nd_recv));
-	    if (type == NODE_QCALL) {
-		else_label = NEW_LABEL(line);
-		end_label = NEW_LABEL(line);
-
-		DECL_BRANCH_BASE(branches, nd_first_lineno(node), nd_first_column(node), nd_last_lineno(node), nd_last_column(node), "&.");
-		ADD_INSN(recv, line, dup);
-		ADD_INSNL(recv, line, branchnil, else_label);
-		ADD_TRACE_BRANCH_COVERAGE(recv, nd_first_lineno(node), nd_first_column(node), nd_last_lineno(node), nd_last_column(node), "then", branches);
-	    }
+	if (type == NODE_CALL) {
+	    COMPILE(recv, "recv", node->nd_recv);
 	}
 	else if (type == NODE_FCALL || type == NODE_VCALL) {
 	    ADD_CALL_RECEIVER(recv, line);
 	}
 
 	/* args */
-	if (type != NODE_VCALL) {
-	    argc = setup_args(iseq, args, node->nd_args, &flag, &keywords);
-	    CHECK(!NIL_P(argc));
+	if (nd_type(node) != NODE_VCALL) {
+	    argc = setup_args(iseq, args, node->nd_args, &flag);
 	}
 	else {
 	    argc = INT2FIX(0);
@@ -6155,7 +4428,7 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	debugp_param("call args argc", argc);
 	debugp_param("call method", ID2SYM(mid));
 
-	switch ((int)type) {
+	switch (nd_type(node)) {
 	  case NODE_VCALL:
 	    flag |= VM_CALL_VCALL;
 	    /* VCALL is funcall, so fall through */
@@ -6163,15 +4436,10 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	    flag |= VM_CALL_FCALL;
 	}
 
-	ADD_SEND_R(ret, line, mid, argc, parent_block, INT2FIX(flag), keywords);
+	ADD_SEND_R(ret, line, ID2SYM(mid),
+		   argc, parent_block, LONG2FIX(flag));
 
-	if (else_label && end_label) {
-	    ADD_INSNL(ret, line, jump, end_label);
-	    ADD_LABEL(ret, else_label);
-	    ADD_TRACE_BRANCH_COVERAGE(ret, nd_first_lineno(node), nd_first_column(node), nd_last_lineno(node), nd_last_column(node), "else", branches);
-	    ADD_LABEL(ret, end_label);
-	}
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
@@ -6180,255 +4448,261 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
       case NODE_ZSUPER:{
 	DECL_ANCHOR(args);
 	int argc;
-	unsigned int flag = 0;
-	struct rb_call_info_kw_arg *keywords = NULL;
-	const rb_iseq_t *parent_block = ISEQ_COMPILE_DATA(iseq)->current_block;
+	VALUE flag = 0;
+	VALUE parent_block = iseq->compile_data->current_block;
 
 	INIT_ANCHOR(args);
-	ISEQ_COMPILE_DATA(iseq)->current_block = NULL;
-	if (type == NODE_SUPER) {
-	    VALUE vargc = setup_args(iseq, args, node->nd_args, &flag, &keywords);
-	    CHECK(!NIL_P(vargc));
+	iseq->compile_data->current_block = Qfalse;
+	if (nd_type(node) == NODE_SUPER) {
+	    VALUE vargc = setup_args(iseq, args, node->nd_args, &flag);
 	    argc = FIX2INT(vargc);
 	}
 	else {
 	    /* NODE_ZSUPER */
 	    int i;
-	    const rb_iseq_t *liseq = iseq->body->local_iseq;
+	    rb_iseq_t *liseq = iseq->local_iseq;
 	    int lvar_level = get_lvar_level(iseq);
 
-	    argc = liseq->body->param.lead_num;
+	    argc = liseq->argc;
 
 	    /* normal arguments */
-	    for (i = 0; i < liseq->body->param.lead_num; i++) {
-		int idx = liseq->body->local_table_size - i;
-		ADD_GETLOCAL(args, line, idx, lvar_level);
+	    for (i = 0; i < liseq->argc; i++) {
+		int idx = liseq->local_size - i;
+		ADD_INSN2(args, line, getlocal, INT2FIX(idx), INT2FIX(lvar_level));
 	    }
 
-	    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_table_size - (i + j);
-		    ADD_GETLOCAL(args, line, idx, lvar_level);
+	    if (!liseq->arg_simple) {
+		if (liseq->arg_opts) {
+		    /* optional arguments */
+		    int j;
+		    for (j = 0; j < liseq->arg_opts - 1; j++) {
+			int idx = liseq->local_size - (i + j);
+			ADD_INSN2(args, line, getlocal, INT2FIX(idx), INT2FIX(lvar_level));
+		    }
+		    i += j;
+		    argc = i;
 		}
-		i += j;
-		argc = i;
-	    }
-	    if (liseq->body->param.flags.has_rest) {
-		/* rest argument */
-		int idx = liseq->body->local_table_size - liseq->body->param.rest_start;
 
-		ADD_GETLOCAL(args, line, idx, lvar_level);
-		ADD_INSN1(args, line, splatarray, Qfalse);
+		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;
+		}
 
-		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->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_rest) {
-		    int j;
-		    for (j=0; j<post_len; j++) {
-			int idx = liseq->body->local_table_size - (post_start + j);
-			ADD_GETLOCAL(args, line, idx, lvar_level);
+		    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 settled at above */
 		    }
-		    ADD_INSN1(args, line, newarray, INT2FIX(j));
-		    ADD_INSN (args, line, concatarray);
-		    /* argc is settled at above */
-		}
-		else {
-		    int j;
-		    for (j=0; j<post_len; j++) {
-			int idx = liseq->body->local_table_size - (post_start + j);
-			ADD_GETLOCAL(args, line, idx, lvar_level);
+		    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;
 		    }
-		    argc = post_len + post_start;
 		}
-	    }
-
-	    if (liseq->body->param.flags.has_kw) { /* TODO: support keywords */
-		int local_size = liseq->body->local_table_size;
-		argc++;
 
-		ADD_INSN1(args, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
-
-		if (liseq->body->param.flags.has_kwrest) {
-		    int idx = liseq->body->local_table_size - liseq->body->param.keyword->rest_start;
-		    ADD_GETLOCAL(args, line, idx, 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_GETLOCAL(args, line, idx, lvar_level);
-		}
-		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) {
-		int idx = liseq->body->local_table_size - liseq->body->param.keyword->rest_start;
-		ADD_GETLOCAL(args, line, idx, 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 {
+		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));
+		    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;
+		    }
 		}
 	    }
 	}
 
 	/* dummy receiver */
-	ADD_INSN1(ret, line, putobject, type == NODE_ZSUPER ? Qfalse : Qtrue);
+	ADD_INSN1(ret, line, putobject, nd_type(node) == NODE_ZSUPER ? Qfalse : Qtrue);
 	ADD_SEQ(ret, args);
-	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);
+	ADD_INSN1(ret, line, invokesuper, new_callinfo(iseq, 0, argc, parent_block,
+								flag | VM_CALL_SUPER | VM_CALL_FCALL));
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
       case NODE_ARRAY:{
-	CHECK(compile_array(iseq, ret, node, COMPILE_ARRAY_TYPE_ARRAY, NULL, NULL, popped) >= 0);
+	compile_array_(iseq, ret, node, COMPILE_ARRAY_TYPE_ARRAY, poped);
 	break;
       }
       case NODE_ZARRAY:{
-	if (!popped) {
+	if (!poped) {
 	    ADD_INSN1(ret, line, newarray, INT2FIX(0));
 	}
 	break;
       }
       case NODE_VALUES:{
-	const NODE *n = node;
-	if (popped) {
-	    COMPILE_ERROR(ERROR_ARGS "NODE_VALUES: must not be popped");
-	}
+	NODE *n = node;
 	while (n) {
-	    CHECK(COMPILE(ret, "values item", n->nd_head));
+	    COMPILE(ret, "values item", n->nd_head);
 	    n = n->nd_next;
 	}
 	ADD_INSN1(ret, line, newarray, INT2FIX(node->nd_alen));
+	if (poped) {
+	    ADD_INSN(ret, line, pop);
+	}
 	break;
       }
       case NODE_HASH:{
 	DECL_ANCHOR(list);
-	enum node_type type = node->nd_head ? nd_type(node->nd_head) : NODE_ZARRAY;
+	int type = node->nd_head ? nd_type(node->nd_head) : NODE_ZARRAY;
 
 	INIT_ANCHOR(list);
 	switch (type) {
 	  case NODE_ARRAY:
-	    CHECK(compile_array(iseq, list, node->nd_head, COMPILE_ARRAY_TYPE_HASH, NULL, NULL, popped) >= 0);
+	    compile_array(iseq, list, node->nd_head, COMPILE_ARRAY_TYPE_HASH);
 	    ADD_SEQ(ret, list);
 	    break;
 
 	  case NODE_ZARRAY:
-	    if (popped) break;
 	    ADD_INSN1(ret, line, newhash, INT2FIX(0));
 	    break;
 
 	  default:
-	    COMPILE_ERROR(ERROR_ARGS_AT(node->nd_head) "can't make hash with this node: %s",
-			  ruby_node_name(type));
-	    goto ng;
+	    rb_bug("can't make hash with this node: %s", ruby_node_name(type));
+	}
+
+	if (poped) {
+	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
-      case NODE_RETURN:
-	CHECK(compile_return(iseq, ret, node, popped));
+      case NODE_RETURN:{
+	rb_iseq_t *is = iseq;
+
+	if (is) {
+	    if (is->type == ISEQ_TYPE_TOP) {
+		COMPILE_ERROR((ERROR_ARGS "Invalid return"));
+	    }
+	    else {
+		LABEL *splabel = 0;
+
+		if (is->type == ISEQ_TYPE_METHOD) {
+		    splabel = NEW_LABEL(0);
+		    ADD_LABEL(ret, splabel);
+		    ADD_ADJUST(ret, line, 0);
+		}
+
+		COMPILE(ret, "return nd_stts (return val)", node->nd_stts);
+
+		if (is->type == ISEQ_TYPE_METHOD) {
+		    add_ensure_iseq(ret, iseq, 1);
+		    ADD_TRACE(ret, line, RUBY_EVENT_RETURN);
+		    ADD_INSN(ret, line, leave);
+		    ADD_ADJUST_RESTORE(ret, splabel);
+
+		    if (!poped) {
+			ADD_INSN(ret, line, putnil);
+		    }
+		}
+		else {
+		    ADD_INSN1(ret, line, throw, INT2FIX(0x01) /* TAG_RETURN */ );
+		    if (poped) {
+			ADD_INSN(ret, line, pop);
+		    }
+		}
+	    }
+	}
 	break;
+      }
       case NODE_YIELD:{
 	DECL_ANCHOR(args);
 	VALUE argc;
-	unsigned int flag = 0;
-	struct rb_call_info_kw_arg *keywords = NULL;
+	VALUE flag = 0;
 
 	INIT_ANCHOR(args);
-	if (iseq->body->type == ISEQ_TYPE_TOP ||
-	    iseq->body->type == ISEQ_TYPE_MAIN) {
-	    COMPILE_ERROR(ERROR_ARGS "Invalid yield");
-	    goto ng;
+	if (iseq->type == ISEQ_TYPE_TOP) {
+	    COMPILE_ERROR((ERROR_ARGS "Invalid yield"));
 	}
 
 	if (node->nd_head) {
-	    argc = setup_args(iseq, args, node->nd_head, &flag, &keywords);
-	    CHECK(!NIL_P(argc));
+	    argc = setup_args(iseq, args, node->nd_head, &flag);
 	}
 	else {
 	    argc = INT2FIX(0);
 	}
 
 	ADD_SEQ(ret, args);
-	ADD_INSN1(ret, line, invokeblock, new_callinfo(iseq, 0, FIX2INT(argc), flag, keywords, FALSE));
+	ADD_INSN1(ret, line, invokeblock, new_callinfo(iseq, 0, FIX2INT(argc), 0, flag));
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
       case NODE_LVAR:{
-	if (!popped) {
+	if (!poped) {
 	    ID id = node->nd_vid;
-	    int idx = iseq->body->local_iseq->body->local_table_size - get_local_var_idx(iseq, id);
+	    int idx = iseq->local_iseq->local_size - get_local_var_idx(iseq, id);
 
 	    debugs("id: %s idx: %d\n", rb_id2name(id), idx);
-	    ADD_GETLOCAL(ret, line, idx, get_lvar_level(iseq));
+	    ADD_INSN2(ret, line, getlocal, INT2FIX(idx), INT2FIX(get_lvar_level(iseq)));
 	}
 	break;
       }
       case NODE_DVAR:{
 	int lv, idx, ls;
 	debugi("nd_vid", node->nd_vid);
-	if (!popped) {
+	if (!poped) {
 	    idx = get_dyna_var_idx(iseq, node->nd_vid, &lv, &ls);
 	    if (idx < 0) {
-		COMPILE_ERROR(ERROR_ARGS "unknown dvar (%"PRIsVALUE")",
-			      rb_id2str(node->nd_vid));
-		goto ng;
+		rb_bug("unknown dvar (%s)", rb_id2name(node->nd_vid));
 	    }
-	    ADD_GETLOCAL(ret, line, ls - idx, lv);
+	    ADD_INSN2(ret, line, getlocal, INT2FIX(ls - idx), INT2FIX(lv));
 	}
 	break;
       }
       case NODE_GVAR:{
 	ADD_INSN1(ret, line, getglobal,
 		  ((VALUE)node->nd_entry | 1));
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
       case NODE_IVAR:{
 	debugi("nd_vid", node->nd_vid);
-	if (!popped) {
+	if (!poped) {
 	    ADD_INSN2(ret, line, getinstancevariable,
-		      ID2SYM(node->nd_vid),
-		      get_ivar_ic_value(iseq,node->nd_vid));
+		      ID2SYM(node->nd_vid), INT2FIX(iseq->is_size++));
 	}
 	break;
       }
       case NODE_CONST:{
 	debugi("nd_vid", node->nd_vid);
 
-	if (ISEQ_COMPILE_DATA(iseq)->option->inline_const_cache) {
+	if (iseq->compile_data->option->inline_const_cache) {
 	    LABEL *lend = NEW_LABEL(line);
-	    int ic_index = iseq->body->is_size++;
+	    int ic_index = iseq->is_size++;
 
 	    ADD_INSN2(ret, line, getinlinecache, lend, INT2FIX(ic_index));
 	    ADD_INSN1(ret, line, getconstant, ID2SYM(node->nd_vid));
@@ -6440,31 +4714,27 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	    ADD_INSN1(ret, line, getconstant, ID2SYM(node->nd_vid));
 	}
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
       case NODE_CVAR:{
-	if (!popped) {
+	if (!poped) {
 	    ADD_INSN1(ret, line, getclassvariable,
 		      ID2SYM(node->nd_vid));
 	}
 	break;
       }
       case NODE_NTH_REF:{
-        if (!popped) {
-	    if (!node->nd_nth) {
-		ADD_INSN(ret, line, putnil);
-		break;
-	    }
+        if (!poped) {
 	    ADD_INSN2(ret, line, getspecial, INT2FIX(1) /* '~'  */,
 		      INT2FIX(node->nd_nth << 1));
 	}
 	break;
       }
       case NODE_BACK_REF:{
-	if (!popped) {
+	if (!poped) {
 	    ADD_INSN2(ret, line, getspecial, INT2FIX(1) /* '~' */,
 		      INT2FIX(0x01 | (node->nd_nth << 1)));
 	}
@@ -6485,16 +4755,16 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 		      INT2FIX(0));
 	    break;
 	  case NODE_MATCH2:
-	    CHECK(COMPILE(recv, "receiver", node->nd_recv));
-	    CHECK(COMPILE(val, "value", node->nd_value));
+	    COMPILE(recv, "receiver", node->nd_recv);
+	    COMPILE(val, "value", node->nd_value);
 	    break;
 	  case NODE_MATCH3:
-	    CHECK(COMPILE(recv, "receiver", node->nd_value));
-	    CHECK(COMPILE(val, "value", node->nd_recv));
+	    COMPILE(recv, "receiver", node->nd_value);
+	    COMPILE(val, "value", node->nd_recv);
 	    break;
 	}
 
-	if (ISEQ_COMPILE_DATA(iseq)->option->specialized_instruction) {
+	if (iseq->compile_data->option->specialized_instruction) {
 	    /* TODO: detect by node */
 	    if (recv->last == recv->anchor.next &&
 		INSN_OF(recv->last) == BIN(putobject) &&
@@ -6506,79 +4776,50 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	    else {
 		ADD_SEQ(ret, recv);
 		ADD_SEQ(ret, val);
-		ADD_INSN2(ret, line, opt_regexpmatch2, new_callinfo(iseq, idEqTilde, 1, 0, NULL, FALSE), Qnil);
+		ADD_INSN1(ret, line, opt_regexpmatch2, new_callinfo(iseq, idEqTilde, 1, 0, 0));
 	    }
 	}
 	else {
 	    ADD_SEQ(ret, recv);
 	    ADD_SEQ(ret, val);
-	    ADD_SEND(ret, line, idEqTilde, INT2FIX(1));
-	}
-
-	if (node->nd_args) {
-	    compile_named_capture_assign(iseq, ret, node->nd_args);
+	    ADD_SEND(ret, line, ID2SYM(idEqTilde), INT2FIX(1));
 	}
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
       case NODE_LIT:{
 	debugp_param("lit", node->nd_lit);
-	if (!popped) {
+	if (!poped) {
 	    ADD_INSN1(ret, line, putobject, node->nd_lit);
 	}
 	break;
       }
       case NODE_STR:{
 	debugp_param("nd_lit", node->nd_lit);
-	if (!popped) {
-	    VALUE lit = node->nd_lit;
-	    if (!ISEQ_COMPILE_DATA(iseq)->option->frozen_string_literal) {
-		lit = freeze_literal(iseq, lit);
-		ADD_INSN1(ret, line, putstring, lit);
-	    }
-	    else {
-		if (ISEQ_COMPILE_DATA(iseq)->option->debug_frozen_string_literal || RTEST(ruby_debug)) {
-		    VALUE debug_info = rb_ary_new_from_args(2, rb_iseq_path(iseq), INT2FIX(line));
-		    lit = rb_str_dup(lit);
-		    rb_ivar_set(lit, id_debug_created_info, rb_obj_freeze(debug_info));
-		    lit = rb_str_freeze(lit);
-		}
-		else {
-		    lit = rb_fstring(lit);
-		}
-		ADD_INSN1(ret, line, putobject, lit);
-		iseq_add_mark_object_compile_time(iseq, lit);
-	    }
+	if (!poped) {
+	    OBJ_FREEZE(node->nd_lit);
+	    ADD_INSN1(ret, line, putstring, node->nd_lit);
 	}
 	break;
       }
       case NODE_DSTR:{
 	compile_dstr(iseq, ret, node);
 
-	if (popped) {
+	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, rb_iseq_path(iseq), 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);
 	ADD_CALL_RECEIVER(ret, line);
-	ADD_INSN1(ret, line, putobject, freeze_literal(iseq, node->nd_lit));
-	ADD_CALL(ret, line, idBackquote, INT2FIX(1));
+	ADD_INSN1(ret, line, putobject, node->nd_lit);
+	ADD_CALL(ret, line, ID2SYM(idBackquote), INT2FIX(1));
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
@@ -6586,124 +4827,119 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
       case NODE_DXSTR:{
 	ADD_CALL_RECEIVER(ret, line);
 	compile_dstr(iseq, ret, node);
-	ADD_CALL(ret, line, idBackquote, INT2FIX(1));
+	ADD_CALL(ret, line, ID2SYM(idBackquote), INT2FIX(1));
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
       case NODE_EVSTR:{
-	CHECK(COMPILE(ret, "nd_body", node->nd_body));
+	COMPILE(ret, "nd_body", node->nd_body);
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
-	else if (!all_string_result_p(node->nd_body)) {
-	    const unsigned int flag = VM_CALL_FCALL;
-	    LABEL *isstr = NEW_LABEL(line);
-	    ADD_INSN(ret, line, dup);
-	    ADD_INSN2(ret, line, branchiftype, INT2FIX(T_STRING), isstr);
-	    LABEL_REF(isstr);
-	    ADD_INSN(ret, line, dup);
-	    ADD_SEND_R(ret, line, idTo_s, INT2FIX(0), NULL, INT2FIX(flag), NULL);
+	else {
 	    ADD_INSN(ret, line, tostring);
-	    ADD_LABEL(ret, isstr);
 	}
 	break;
       }
       case NODE_DREGX:{
 	compile_dregx(iseq, ret, node);
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
-      case NODE_SCOPE:{
-	int ic_index = iseq->body->is_size++;
-	const rb_iseq_t *block_iseq = NEW_CHILD_ISEQ(node, make_name_for_block(iseq),
-						     ISEQ_TYPE_ONCE_GUARD, line);
+      case NODE_DREGX_ONCE:{
+	int ic_index = iseq->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);
+	VALUE block_iseq = NEW_CHILD_ISEQVAL(block_node, make_name_for_block(iseq), ISEQ_TYPE_BLOCK, line);
 
 	ADD_INSN2(ret, line, once, block_iseq, INT2FIX(ic_index));
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
       case NODE_ARGSCAT:{
-	if (popped) {
-	    CHECK(COMPILE(ret, "argscat head", node->nd_head));
+	if (poped) {
+	    COMPILE(ret, "argscat head", node->nd_head);
 	    ADD_INSN1(ret, line, splatarray, Qfalse);
 	    ADD_INSN(ret, line, pop);
-	    CHECK(COMPILE(ret, "argscat body", node->nd_body));
+	    COMPILE(ret, "argscat body", node->nd_body);
 	    ADD_INSN1(ret, line, splatarray, Qfalse);
 	    ADD_INSN(ret, line, pop);
 	}
 	else {
-	    CHECK(COMPILE(ret, "argscat head", node->nd_head));
-	    CHECK(COMPILE(ret, "argscat body", node->nd_body));
+	    COMPILE(ret, "argscat head", node->nd_head);
+	    COMPILE(ret, "argscat body", node->nd_body);
 	    ADD_INSN(ret, line, concatarray);
 	}
 	break;
       }
       case NODE_ARGSPUSH:{
-	if (popped) {
-	    CHECK(COMPILE(ret, "arsgpush head", node->nd_head));
+	if (poped) {
+	    COMPILE(ret, "arsgpush head", node->nd_head);
 	    ADD_INSN1(ret, line, splatarray, Qfalse);
 	    ADD_INSN(ret, line, pop);
-	    CHECK(COMPILE_(ret, "argspush body", node->nd_body, popped));
+	    COMPILE_(ret, "argspush body", node->nd_body, poped);
 	}
 	else {
-	    CHECK(COMPILE(ret, "arsgpush head", node->nd_head));
-	    CHECK(COMPILE_(ret, "argspush body", node->nd_body, popped));
+	    COMPILE(ret, "arsgpush head", node->nd_head);
+	    COMPILE_(ret, "argspush body", node->nd_body, poped);
 	    ADD_INSN1(ret, line, newarray, INT2FIX(1));
 	    ADD_INSN(ret, line, concatarray);
 	}
 	break;
       }
       case NODE_SPLAT:{
-	CHECK(COMPILE(ret, "splat", node->nd_head));
+	COMPILE(ret, "splat", node->nd_head);
 	ADD_INSN1(ret, line, splatarray, Qtrue);
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
       case NODE_DEFN:{
-	const rb_iseq_t *method_iseq = NEW_ISEQ(node->nd_defn,
-						rb_id2str(node->nd_mid),
-						ISEQ_TYPE_METHOD, line);
+	VALUE iseqval = NEW_ISEQVAL(node->nd_defn,
+				    rb_str_dup(rb_id2str(node->nd_mid)),
+				    ISEQ_TYPE_METHOD, line);
 
-	debugp_param("defn/iseq", rb_iseqw_new(method_iseq));
+	debugp_param("defn/iseq", iseqval);
 
 	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, method_iseq);
-	ADD_SEND (ret, line, id_core_define_method, INT2FIX(2));
+	ADD_INSN1(ret, line, putiseq, iseqval);
+	ADD_SEND (ret, line, ID2SYM(id_core_define_method), INT2FIX(3));
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 
+	debugp_param("defn", iseqval);
 	break;
       }
       case NODE_DEFS:{
-	const rb_iseq_t * singleton_method = NEW_ISEQ(node->nd_defn,
-						      rb_id2str(node->nd_mid),
-						      ISEQ_TYPE_METHOD, line);
+	VALUE iseqval = NEW_ISEQVAL(node->nd_defn,
+				    rb_str_dup(rb_id2str(node->nd_mid)),
+				    ISEQ_TYPE_METHOD, line);
 
-	debugp_param("defs/iseq", rb_iseqw_new(singleton_method));
+	debugp_param("defs/iseq", iseqval);
 
 	ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
-	CHECK(COMPILE(ret, "defs: recv", node->nd_recv));
+	COMPILE(ret, "defs: recv", node->nd_recv);
 	ADD_INSN1(ret, line, putobject, ID2SYM(node->nd_mid));
-	ADD_INSN1(ret, line, putiseq, singleton_method);
-	ADD_SEND (ret, line, id_core_define_singleton_method, INT2FIX(3));
+	ADD_INSN1(ret, line, putiseq, iseqval);
+	ADD_SEND (ret, line, ID2SYM(id_core_define_singleton_method), INT2FIX(3));
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
@@ -6711,22 +4947,22 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
       case NODE_ALIAS:{
 	ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
 	ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_CBASE));
-	CHECK(COMPILE(ret, "alias arg1", node->nd_1st));
-	CHECK(COMPILE(ret, "alias arg2", node->nd_2nd));
-	ADD_SEND(ret, line, id_core_set_method_alias, INT2FIX(3));
+	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));
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
       case NODE_VALIAS:{
 	ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
-	ADD_INSN1(ret, line, putobject, ID2SYM(node->nd_alias));
-	ADD_INSN1(ret, line, putobject, ID2SYM(node->nd_orig));
-	ADD_SEND(ret, line, id_core_set_variable_alias, INT2FIX(2));
+	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));
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
@@ -6734,58 +4970,64 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
       case NODE_UNDEF:{
 	ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_VMCORE));
 	ADD_INSN1(ret, line, putspecialobject, INT2FIX(VM_SPECIAL_OBJECT_CBASE));
-	CHECK(COMPILE(ret, "undef arg", node->nd_undef));
-	ADD_SEND(ret, line, id_core_undef_method, INT2FIX(2));
+	COMPILE(ret, "undef arg", node->u2.node);
+	ADD_SEND(ret, line, ID2SYM(id_core_undef_method), INT2FIX(2));
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
       case NODE_CLASS:{
-	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);
-	const int flags = VM_DEFINECLASS_TYPE_CLASS |
-	    (node->nd_super ? VM_DEFINECLASS_FLAG_HAS_SUPERCLASS : 0) |
-	    compile_cpath(ret, iseq, node->nd_cpath);
-
-	CHECK(COMPILE(ret, "super", node->nd_super));
-	ADD_INSN3(ret, line, defineclass, ID2SYM(node->nd_cpath->nd_mid), class_iseq, INT2FIX(flags));
+	VALUE iseqval =
+	    NEW_CHILD_ISEQVAL(
+		node->nd_body,
+		rb_sprintf("<class:%s>", rb_id2name(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));
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
       case NODE_MODULE:{
-        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);
-	const int flags = VM_DEFINECLASS_TYPE_MODULE |
-	    compile_cpath(ret, iseq, node->nd_cpath);
-
+	VALUE iseqval = NEW_CHILD_ISEQVAL(
+	    node->nd_body,
+	    rb_sprintf("<module:%s>", rb_id2name(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), module_iseq, INT2FIX(flags));
-
-	if (popped) {
+	ADD_INSN3(ret, line, defineclass,
+		  ID2SYM(node->nd_cpath->nd_mid), iseqval, INT2FIX(flags));
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
       case NODE_SCLASS:{
 	ID singletonclass;
-	const rb_iseq_t *singleton_class = NEW_ISEQ(node->nd_body, rb_fstring_cstr("singleton class"),
-						    ISEQ_TYPE_CLASS, line);
+	VALUE iseqval =
+	    NEW_ISEQVAL(node->nd_body, rb_str_new2("singleton class"),
+			ISEQ_TYPE_CLASS, line);
 
-	CHECK(COMPILE(ret, "sclass#recv", node->nd_recv));
+	COMPILE(ret, "sclass#recv", node->nd_recv);
 	ADD_INSN (ret, line, putnil);
 	CONST_ID(singletonclass, "singletonclass");
 	ADD_INSN3(ret, line, defineclass,
-		  ID2SYM(singletonclass), singleton_class,
+		  ID2SYM(singletonclass), iseqval,
 		  INT2FIX(VM_DEFINECLASS_TYPE_SINGLETON_CLASS));
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
@@ -6794,16 +5036,16 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	if (rb_is_const_id(node->nd_mid)) {
 	    /* constant */
 	    LABEL *lend = NEW_LABEL(line);
-	    int ic_index = iseq->body->is_size++;
+	    int ic_index = iseq->is_size++;
 
 	    DECL_ANCHOR(pref);
 	    DECL_ANCHOR(body);
 
 	    INIT_ANCHOR(pref);
 	    INIT_ANCHOR(body);
-	    CHECK(compile_const_prefix(iseq, node, pref, body));
-	    if (LIST_INSN_SIZE_ZERO(pref)) {
-		if (ISEQ_COMPILE_DATA(iseq)->option->inline_const_cache) {
+	    compile_colon2(iseq, node, pref, body);
+	    if (LIST_SIZE_ZERO(pref)) {
+		if (iseq->compile_data->option->inline_const_cache) {
 		    ADD_INSN2(ret, line, getinlinecache, lend, INT2FIX(ic_index));
 		}
 		else {
@@ -6812,7 +5054,7 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 
 		ADD_SEQ(ret, body);
 
-		if (ISEQ_COMPILE_DATA(iseq)->option->inline_const_cache) {
+		if (iseq->compile_data->option->inline_const_cache) {
 		    ADD_INSN1(ret, line, setinlinecache, INT2FIX(ic_index));
 		    ADD_LABEL(ret, lend);
 		}
@@ -6825,22 +5067,23 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	else {
 	    /* function call */
 	    ADD_CALL_RECEIVER(ret, line);
-	    CHECK(COMPILE(ret, "colon2#nd_head", node->nd_head));
-	    ADD_CALL(ret, line, node->nd_mid, INT2FIX(1));
+	    COMPILE(ret, "colon2#nd_head", node->nd_head);
+	    ADD_CALL(ret, line, ID2SYM(node->nd_mid),
+		     INT2FIX(1));
 	}
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
       case NODE_COLON3:{
 	LABEL *lend = NEW_LABEL(line);
-	int ic_index = iseq->body->is_size++;
+	int ic_index = iseq->is_size++;
 
 	debugi("colon3#nd_mid", node->nd_mid);
 
 	/* add cache insn */
-	if (ISEQ_COMPILE_DATA(iseq)->option->inline_const_cache) {
+	if (iseq->compile_data->option->inline_const_cache) {
 	    ADD_INSN2(ret, line, getinlinecache, lend, INT2FIX(ic_index));
 	    ADD_INSN(ret, line, pop);
 	}
@@ -6848,94 +5091,112 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	ADD_INSN1(ret, line, putobject, rb_cObject);
 	ADD_INSN1(ret, line, getconstant, ID2SYM(node->nd_mid));
 
-	if (ISEQ_COMPILE_DATA(iseq)->option->inline_const_cache) {
+	if (iseq->compile_data->option->inline_const_cache) {
 	    ADD_INSN1(ret, line, setinlinecache, INT2FIX(ic_index));
 	    ADD_LABEL(ret, lend);
 	}
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
       case NODE_DOT2:
       case NODE_DOT3:{
-	int excl = type == NODE_DOT3;
-	VALUE flag = INT2FIX(excl);
-	const NODE *b = node->nd_beg;
-	const NODE *e = node->nd_end;
-	if (number_literal_p(b) && number_literal_p(e)) {
-	    if (!popped) {
-		VALUE val = rb_range_new(b->nd_lit, e->nd_lit, excl);
-		iseq_add_mark_object_compile_time(iseq, val);
-		ADD_INSN1(ret, line, putobject, val);
-	    }
+	VALUE flag = type == NODE_DOT2 ? INT2FIX(0) : INT2FIX(1);
+	COMPILE(ret, "min", (NODE *) node->nd_beg);
+	COMPILE(ret, "max", (NODE *) node->nd_end);
+	if (poped) {
+	    ADD_INSN(ret, line, pop);
+	    ADD_INSN(ret, line, pop);
 	}
 	else {
-	    CHECK(COMPILE_(ret, "min", b, popped));
-	    CHECK(COMPILE_(ret, "max", e, popped));
-	    if (!popped) {
-		ADD_INSN1(ret, line, newrange, flag);
-	    }
+	    ADD_INSN1(ret, line, newrange, flag);
 	}
 	break;
       }
       case NODE_FLIP2:
       case NODE_FLIP3:{
 	LABEL *lend = NEW_LABEL(line);
+	LABEL *lfin = NEW_LABEL(line);
 	LABEL *ltrue = NEW_LABEL(line);
-	LABEL *lfalse = NEW_LABEL(line);
-	CHECK(compile_flip_flop(iseq, ret, node, type == NODE_FLIP2,
-				ltrue, lfalse));
+	rb_iseq_t *local_iseq = iseq->local_iseq;
+	rb_num_t cnt;
+	VALUE key;
+
+	cnt = local_iseq->flip_cnt++ + DEFAULT_SPECIAL_VAR_COUNT;
+	key = INT2FIX(cnt);
+
+	ADD_INSN2(ret, line, getspecial, key, INT2FIX(0));
+	ADD_INSNL(ret, line, branchif, lend);
+
+	/* *flip == 0 */
+	COMPILE(ret, "flip2 beg", node->nd_beg);
+	ADD_INSN(ret, line, dup);
+	ADD_INSNL(ret, line, branchunless, lfin);
+	if (nd_type(node) == NODE_FLIP3) {
+	    ADD_INSN(ret, line, dup);
+	    ADD_INSN1(ret, line, setspecial, key);
+	    ADD_INSNL(ret, line, jump, lfin);
+	}
+	else {
+	    ADD_INSN1(ret, line, setspecial, key);
+	}
+
+	/* *flip == 1 */
+	ADD_LABEL(ret, lend);
+	COMPILE(ret, "flip2 end", node->nd_end);
+	ADD_INSNL(ret, line, branchunless, ltrue);
+	ADD_INSN1(ret, line, putobject, Qfalse);
+	ADD_INSN1(ret, line, setspecial, key);
+
 	ADD_LABEL(ret, ltrue);
 	ADD_INSN1(ret, line, putobject, Qtrue);
-	ADD_INSNL(ret, line, jump, lend);
-	ADD_LABEL(ret, lfalse);
-	ADD_INSN1(ret, line, putobject, Qfalse);
-	ADD_LABEL(ret, lend);
+
+	ADD_LABEL(ret, lfin);
 	break;
       }
       case NODE_SELF:{
-	if (!popped) {
+	if (!poped) {
 	    ADD_INSN(ret, line, putself);
 	}
 	break;
       }
       case NODE_NIL:{
-	if (!popped) {
+	if (!poped) {
 	    ADD_INSN(ret, line, putnil);
 	}
 	break;
       }
       case NODE_TRUE:{
-	if (!popped) {
+	if (!poped) {
 	    ADD_INSN1(ret, line, putobject, Qtrue);
 	}
 	break;
       }
       case NODE_FALSE:{
-	if (!popped) {
+	if (!poped) {
 	    ADD_INSN1(ret, line, putobject, Qfalse);
 	}
 	break;
       }
       case NODE_ERRINFO:{
-	if (!popped) {
-	    if (iseq->body->type == ISEQ_TYPE_RESCUE) {
-		ADD_GETLOCAL(ret, line, LVAR_ERRINFO, 0);
+	if (!poped) {
+	    if (iseq->type == ISEQ_TYPE_RESCUE) {
+		ADD_INSN2(ret, line, getlocal, INT2FIX(2), INT2FIX(0));
 	    }
 	    else {
-		const rb_iseq_t *ip = iseq;
+		rb_iseq_t *ip = iseq;
 		int level = 0;
 		while (ip) {
-		    if (ip->body->type == ISEQ_TYPE_RESCUE) {
+		    if (ip->type == ISEQ_TYPE_RESCUE) {
 			break;
 		    }
-		    ip = ip->body->parent_iseq;
+		    ip = ip->parent_iseq;
 		    level++;
 		}
 		if (ip) {
-		    ADD_GETLOCAL(ret, line, LVAR_ERRINFO, level);
+		    ADD_INSN2(ret, line, getlocal, INT2FIX(2), INT2FIX(level));
 		}
 		else {
 		    ADD_INSN(ret, line, putnil);
@@ -6944,63 +5205,84 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	}
 	break;
       }
-      case NODE_DEFINED:
-	if (!popped) {
-	    CHECK(compile_defined_expr(iseq, ret, node, Qtrue));
+      case NODE_DEFINED:{
+	if (poped) break;
+	if (!node->nd_head) {
+	    VALUE str = rb_iseq_defined_string(DEFINED_NIL);
+	    ADD_INSN1(ret, nd_line(node), putobject, str);
+	}
+	else {
+	    LABEL *lfinish[2];
+	    lfinish[0] = NEW_LABEL(line);
+	    lfinish[1] = 0;
+	    ADD_INSN(ret, line, putnil);
+	    defined_expr(iseq, ret, node->nd_head, lfinish, Qtrue);
+	    ADD_INSN(ret, line, swap);
+	    ADD_INSN(ret, line, pop);
+	    if (lfinish[1]) {
+		ADD_LABEL(ret, lfinish[1]);
+	    }
+	    ADD_LABEL(ret, lfinish[0]);
 	}
 	break;
+      }
       case NODE_POSTEXE:{
 	/* compiled to:
 	 *   ONCE{ rb_mRubyVMFrozenCore::core#set_postexe{ ... } }
 	 */
-	int is_index = iseq->body->is_size++;
-	const rb_iseq_t *once_iseq = NEW_CHILD_ISEQ((const NODE *)IFUNC_NEW(build_postexe_iseq, node->nd_body, 0),
-						    make_name_for_block(iseq), ISEQ_TYPE_BLOCK, line);
+	int is_index = iseq->is_size++;
+	VALUE once_iseq = NEW_CHILD_ISEQVAL(
+	    NEW_IFUNC(build_postexe_iseq, node->nd_body),
+	    make_name_for_block(iseq), ISEQ_TYPE_BLOCK, line);
 
 	ADD_INSN2(ret, line, once, once_iseq, INT2FIX(is_index));
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
-      case NODE_KW_ARG:
-	{
-	    LABEL *end_label = NEW_LABEL(nd_line(node));
-	    const NODE *default_value = node->nd_body->nd_value;
-
-	    if (default_value == (const NODE *)-1) {
-		/* required argument. do nothing */
-		COMPILE_ERROR(ERROR_ARGS "unreachable");
-		goto ng;
-	    }
-	    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) {
-		COMPILE_ERROR(ERROR_ARGS "unreachable");
-		goto ng;
-	    }
-	    else {
-		/* if keywordcheck(_kw_bits, nth_keyword)
-		 *   kw = default_value
-		 * end
-		 */
-		int kw_bits_idx = iseq->body->local_table_size - iseq->body->param.keyword->bits_start;
-		int keyword_idx = iseq->body->param.keyword->num;
-
-		ADD_INSN2(ret, line, checkkeyword, INT2FIX(kw_bits_idx + VM_ENV_DATA_SIZE - 1), INT2FIX(keyword_idx));
-		ADD_INSNL(ret, line, branchif, end_label);
-		CHECK(COMPILE_POPPED(ret, "keyword default argument", node->nd_body));
-		ADD_LABEL(ret, end_label);
-	    }
+      case NODE_KW_ARG:{
+	LABEL *default_label = NEW_LABEL(line);
+	LABEL *end_label = 0;
+	int idx, lv, ls;
+	ID id = node->nd_body->nd_vid;
 
+	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)));
 	}
+	if (node->nd_body->nd_value != (NODE *)-1) {
+	    end_label = NEW_LABEL(nd_line(node));
+	    ADD_INSNL(ret, nd_line(node), jump, end_label);
+	}
+	ADD_LABEL(ret, default_label);
+	if (node->nd_body->nd_value != (NODE *)-1) {
+	    COMPILE_POPED(ret, "keyword default argument", node->nd_body);
+	    ADD_LABEL(ret, end_label);
+	}
+	break;
+      }
       case NODE_DSYM:{
 	compile_dstr(iseq, ret, node);
-	if (!popped) {
-	    ADD_INSN(ret, line, intern);
+	if (!poped) {
+	    ADD_SEND(ret, line, ID2SYM(idIntern), INT2FIX(0));
 	}
 	else {
 	    ADD_INSN(ret, line, pop);
@@ -7010,52 +5292,25 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
       case NODE_ATTRASGN:{
 	DECL_ANCHOR(recv);
 	DECL_ANCHOR(args);
-	unsigned int flag = 0;
-	ID mid = node->nd_mid;
-	LABEL *lskip = 0;
+	VALUE flag = 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 = freeze_literal(iseq, node->nd_args->nd_head->nd_lit);
-	    CHECK(COMPILE(ret, "recv", node->nd_recv));
-	    CHECK(COMPILE(ret, "value", node->nd_args->nd_next->nd_head));
-	    if (!popped) {
-		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, NULL);
-	CHECK(!NIL_P(argc));
+	argc = setup_args(iseq, args, node->nd_args, &flag);
 
-	flag |= COMPILE_RECV(recv, "recv", node);
+	if (node->nd_recv == (NODE *) 1) {
+	    flag |= VM_CALL_FCALL;
+	    ADD_INSN(recv, line, putself);
+	}
+	else {
+	    COMPILE(recv, "recv", node->nd_recv);
+	}
 
 	debugp_param("argc", argc);
-	debugp_param("nd_mid", ID2SYM(mid));
+	debugp_param("nd_mid", ID2SYM(node->nd_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 (!popped) {
+	if (!poped) {
 	    ADD_INSN(ret, line, putnil);
 	    ADD_SEQ(ret, recv);
 	    ADD_SEQ(ret, args);
@@ -7064,7 +5319,7 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 		ADD_INSN1(ret, line, topn, INT2FIX(1));
 		if (flag & VM_CALL_ARGS_SPLAT) {
 		    ADD_INSN1(ret, line, putobject, INT2FIX(-1));
-		    ADD_SEND(ret, line, idAREF, INT2FIX(1));
+		    ADD_SEND(ret, line, ID2SYM(idAREF), INT2FIX(1));
 		}
 		ADD_INSN1(ret, line, setn, FIXNUM_INC(argc, 3));
 		ADD_INSN (ret, line, pop);
@@ -7072,7 +5327,7 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	    else if (flag & VM_CALL_ARGS_SPLAT) {
 		ADD_INSN(ret, line, dup);
 		ADD_INSN1(ret, line, putobject, INT2FIX(-1));
-		ADD_SEND(ret, line, idAREF, INT2FIX(1));
+		ADD_SEND(ret, line, ID2SYM(idAREF), INT2FIX(1));
 		ADD_INSN1(ret, line, setn, FIXNUM_INC(argc, 2));
 		ADD_INSN (ret, line, pop);
 	    }
@@ -7084,62 +5339,38 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	    ADD_SEQ(ret, recv);
 	    ADD_SEQ(ret, args);
 	}
-	ADD_SEND_WITH_FLAG(ret, line, mid, argc, INT2FIX(flag));
-	if (lskip) ADD_LABEL(ret, lskip);
+	ADD_SEND_R(ret, line, ID2SYM(node->nd_mid), argc, 0, LONG2FIX(flag));
 	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_compile_option) {
-	    rb_iseq_make_compile_option(&new_opt, node->nd_compile_option);
-	    ISEQ_COMPILE_DATA(iseq)->option = &new_opt;
-	}
-	if (!new_opt.coverage_enabled) ISEQ_COVERAGE_SET(iseq, Qfalse);
-	CHECK(COMPILE_POPPED(ret, "prelude", node->nd_head));
-	CHECK(COMPILE_(ret, "body", node->nd_body, popped));
-	ISEQ_COMPILE_DATA(iseq)->option = orig_opt;
-	/* Do NOT restore ISEQ_COVERAGE!
-	 * If ISEQ_COVERAGE is not false, finish_iseq_build function in iseq.c
-	 * will initialize the counter array of line coverage.
-	 * We keep ISEQ_COVERAGE as nil to disable this initialization.
-	 * This is not harmful assuming that NODE_PRELUDE pragma does not occur
-	 * in NODE tree except the root.
-	 */
+	COMPILE_POPED(ret, "prelude", node->nd_head);
+	COMPILE_(ret, "body", node->nd_body, poped);
 	break;
       }
       case NODE_LAMBDA:{
 	/* compile same as lambda{...} */
-	const rb_iseq_t *block = NEW_CHILD_ISEQ(node->nd_body, make_name_for_block(iseq), ISEQ_TYPE_BLOCK, line);
+	VALUE block = NEW_CHILD_ISEQVAL(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, idLambda, argc, block);
+	ADD_CALL_WITH_BLOCK(ret, line, ID2SYM(idLambda), argc, block);
 
-	if (popped) {
+	if (poped) {
 	    ADD_INSN(ret, line, pop);
 	}
 	break;
       }
       default:
-	UNKNOWN_NODE("iseq_compile_each", node, COMPILE_NG);
-      ng:
-	debug_node_end();
+	rb_bug("iseq_compile_each: unknown node: %s", ruby_node_name(type));
 	return COMPILE_NG;
     }
 
-    /* remove tracecoverage instruction if there is no relevant instruction */
-    if (IS_TRACE(ret->last) && ((TRACE*) ret->last)->event == RUBY_EVENT_LINE) {
-	LINK_ELEMENT *insn = ret->last->prev;
-	if (IS_INSN(insn) &&
-	    IS_INSN_ID(insn, tracecoverage) &&
-	    FIX2LONG(OPERAND_AT(insn, 0)) == RUBY_EVENT_COVERAGE_LINE
-	) {
-	    ELEM_REMOVE(insn); /* remove tracecovearge */
-	    RARRAY_ASET(ISEQ_LINE_COVERAGE(iseq), line - 1, Qnil);
-	}
+    /* 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();
@@ -7162,29 +5393,16 @@ calc_sp_depth(int depth, INSN *insn)
     return insn_stack_increase(depth, insn->insn_id, insn->operands);
 }
 
-static VALUE
-opobj_inspect(VALUE obj)
+static int
+insn_data_line_no(INSN *iobj)
 {
-    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);
+    return insn_len(iobj->line_no);
 }
 
-
-
 static VALUE
 insn_data_to_s_detail(INSN *iobj)
 {
-    VALUE str = rb_sprintf("%-20s ", insn_name(iobj->insn_id));
+    VALUE str = rb_sprintf("%-16s", insn_name(iobj->insn_id));
 
     if (iobj->operands) {
 	const char *types = insn_op_types(iobj->insn_id);
@@ -7192,12 +5410,13 @@ 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) */
 		{
 		    LABEL *lobj = (LABEL *)OPERAND_AT(iobj, j);
-		    rb_str_catf(str, LABEL_FORMAT, lobj->label_no);
+		    rb_str_catf(str, "<L%03d>", lobj->label_no);
 		    break;
 		}
 		break;
@@ -7206,9 +5425,9 @@ 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 = (VALUE)iseq;
+			val = iseq->self;
 		    }
-		    rb_str_concat(str, opobj_inspect(val));
+		    rb_str_concat(str, rb_inspect(val));
 		}
 		break;
 	      case TS_LINDEX:
@@ -7216,17 +5435,17 @@ insn_data_to_s_detail(INSN *iobj)
 	      case TS_VALUE:	/* VALUE */
 		{
 		    VALUE v = OPERAND_AT(iobj, j);
-		    rb_str_concat(str, opobj_inspect(v));
+		    rb_str_concat(str, rb_inspect(v));
 		    break;
 		}
 	      case TS_ID:	/* ID */
-		rb_str_concat(str, opobj_inspect(OPERAND_AT(iobj, j)));
+		rb_str_concat(str, rb_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_append(str, rb_id2str(entry->id));
+		    rb_str_cat2(str, rb_id2name(entry->id));
 		    break;
 		}
 	      case TS_IC:	/* inline cache */
@@ -7234,33 +5453,13 @@ insn_data_to_s_detail(INSN *iobj)
 		break;
 	      case TS_CALLINFO: /* call info */
 		{
-		    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>");
+		    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);
 		    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);
 	      }
@@ -7274,13 +5473,7 @@ insn_data_to_s_detail(INSN *iobj)
 }
 
 static void
-dump_disasm_list(const LINK_ELEMENT *link)
-{
-    dump_disasm_list_with_cursor(link, NULL, NULL);
-}
-
-static void
-dump_disasm_list_with_cursor(const LINK_ELEMENT *link, const LINK_ELEMENT *curr, const LABEL *dest)
+dump_disasm_list(struct iseq_link_element *link)
 {
     int pos = 0;
     INSN *iobj;
@@ -7290,32 +5483,30 @@ dump_disasm_list_with_cursor(const LINK_ELEMENT *link, const LINK_ELEMENT *curr,
     printf("-- raw disasm--------\n");
 
     while (link) {
-	if (curr) printf(curr == link ? "*" : " ");
 	switch (link->type) {
 	  case ISEQ_ELEMENT_INSN:
 	    {
 		iobj = (INSN *)link;
 		str = insn_data_to_s_detail(iobj);
-		printf("%04d %-65s(%4u)\n", pos, StringValueCStr(str), iobj->insn_info.line_no);
+		printf("%04d %-65s(%4d)\n", pos, StringValueCStr(str), insn_data_line_no(iobj));
 		pos += insn_data_length(iobj);
 		break;
 	    }
 	  case ISEQ_ELEMENT_LABEL:
 	    {
 		lobj = (LABEL *)link;
-		printf(LABEL_FORMAT"%s\n", lobj->label_no, dest == lobj ? " <---" : "");
+		printf("<L%03d>\n", lobj->label_no);
 		break;
 	    }
-	  case ISEQ_ELEMENT_TRACE:
+	  case ISEQ_ELEMENT_NONE:
 	    {
-		TRACE *trace = (TRACE *)link;
-		printf("trace: %0x\n", trace->event);
+		printf("[none]\n");
 		break;
 	    }
 	  case ISEQ_ELEMENT_ADJUST:
 	    {
 		ADJUST *adjust = (ADJUST *)link;
-		printf("adjust: [label: %d]\n", adjust->label ? adjust->label->label_no : -1);
+		printf("adjust: [label: %d]\n", adjust->label->label_no);
 		break;
 	    }
 	  default:
@@ -7325,7 +5516,6 @@ dump_disasm_list_with_cursor(const LINK_ELEMENT *link, const LINK_ELEMENT *curr,
 	link = link->next;
     }
     printf("---------------------\n");
-    fflush(stdout);
 }
 
 const char *
@@ -7339,8 +5529,8 @@ rb_insns_name_array(void)
 {
     VALUE ary = rb_ary_new();
     int i;
-    for (i = 0; i < VM_INSTRUCTION_SIZE; i++) {
-	rb_ary_push(ary, rb_fstring_cstr(insn_name_info[i]));
+    for (i = 0; i < numberof(insn_name_info); i++) {
+	rb_ary_push(ary, rb_obj_freeze(rb_str_new2(insn_name_info[i])));
     }
     return rb_obj_freeze(ary);
 }
@@ -7350,7 +5540,7 @@ register_label(rb_iseq_t *iseq, struct st_table *labels_table, VALUE obj)
 {
     LABEL *label = 0;
     st_data_t tmp;
-    obj = rb_to_symbol_type(obj);
+    obj = rb_convert_type(obj, T_SYMBOL, "Symbol", "to_sym");
 
     if (st_lookup(labels_table, obj, &tmp) == 0) {
 	label = NEW_LABEL(0);
@@ -7359,7 +5549,6 @@ register_label(rb_iseq_t *iseq, struct st_table *labels_table, VALUE obj)
     else {
 	label = (LABEL *)tmp;
     }
-    LABEL_REF(label);
     return label;
 }
 
@@ -7368,6 +5557,7 @@ 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;
 
@@ -7386,7 +5576,9 @@ 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;
-    rb_raise(rb_eSyntaxError, "invalid exception symbol: %+"PRIsVALUE, sym);
+    sym_inspect = rb_inspect(sym);
+    rb_raise(rb_eSyntaxError, "invalid exception symbol: %s",
+	     StringValuePtr(sym_inspect));
     return 0;
 }
 
@@ -7397,42 +5589,33 @@ iseq_build_from_ary_exception(rb_iseq_t *iseq, struct st_table *labels_table,
     int i;
 
     for (i=0; i<RARRAY_LEN(exception); i++) {
-	const rb_iseq_t *eiseq;
-	VALUE v, type;
+	VALUE v, type, eiseqval;
 	const VALUE *ptr;
 	LABEL *lstart, *lend, *lcont;
-	unsigned int sp;
+	int sp;
 
-	v = rb_to_array_type(RARRAY_AREF(exception, i));
+	RB_GC_GUARD(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_CONST_PTR(v);
 	type = get_exception_sym2type(ptr[0]);
 	if (ptr[1] == Qnil) {
-	    eiseq = NULL;
+	    eiseqval = 0;
 	}
 	else {
-	    eiseq = rb_iseqw_to_iseq(rb_iseq_load(ptr[1], (VALUE)iseq, Qnil));
+	    eiseqval = rb_iseq_load(ptr[1], iseq->self, 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     = NUM2UINT(ptr[5]);
-
-	/* TODO: Dirty Hack!  Fix me */
-	if (type == CATCH_TYPE_RESCUE ||
-	    type == CATCH_TYPE_BREAK ||
-	    type == CATCH_TYPE_NEXT) {
-	    ++sp;
-	}
+	sp     = NUM2INT(ptr[5]);
 
-	lcont->sp = sp;
+	(void)sp;
 
-	ADD_CATCH_ENTRY(type, lstart, lend, eiseq, lcont);
-
-	RB_GC_GUARD(v);
+	ADD_CATCH_ENTRY(type, lstart, lend, eiseqval, lcont);
     }
     return COMPILE_OK;
 }
@@ -7451,89 +5634,32 @@ insn_make_insn_table(void)
     return table;
 }
 
-static const rb_iseq_t *
-iseq_build_load_iseq(const rb_iseq_t *iseq, VALUE op)
+static VALUE
+iseq_build_load_iseq(rb_iseq_t *iseq, VALUE op)
 {
-    VALUE iseqw;
-    const rb_iseq_t *loaded_iseq;
-
+    VALUE iseqval;
     if (RB_TYPE_P(op, T_ARRAY)) {
-	iseqw = rb_iseq_load(op, (VALUE)iseq, Qnil);
+	iseqval = rb_iseq_load(op, iseq->self, Qnil);
     }
     else if (CLASS_OF(op) == rb_cISeq) {
-	iseqw = op;
+	iseqval = op;
     }
     else {
 	rb_raise(rb_eSyntaxError, "ISEQ is required");
     }
-
-    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 rb_event_flag_t
-event_name_to_flag(VALUE sym)
-{
-#define CHECK_EVENT(ev) if (sym == ID2SYM(rb_intern(#ev))) return ev;
-		CHECK_EVENT(RUBY_EVENT_LINE);
-		CHECK_EVENT(RUBY_EVENT_CLASS);
-		CHECK_EVENT(RUBY_EVENT_END);
-		CHECK_EVENT(RUBY_EVENT_CALL);
-		CHECK_EVENT(RUBY_EVENT_RETURN);
-		CHECK_EVENT(RUBY_EVENT_B_CALL);
-		CHECK_EVENT(RUBY_EVENT_B_RETURN);
-#undef CHECK_EVENT
-    return RUBY_EVENT_NONE;
+    iseq_add_mark_object(iseq, iseqval);
+    return iseqval;
 }
 
 static int
-iseq_build_from_ary_body(rb_iseq_t *iseq, LINK_ANCHOR *const anchor,
-			 VALUE body, VALUE labels_wrapper)
+iseq_build_from_ary_body(rb_iseq_t *iseq, LINK_ANCHOR *anchor,
+		VALUE body, struct st_table *labels_table)
 {
     /* TODO: body should be frozen */
     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
@@ -7548,14 +5674,8 @@ iseq_build_from_ary_body(rb_iseq_t *iseq, LINK_ANCHOR *const anchor,
 	VALUE obj = ptr[i];
 
 	if (SYMBOL_P(obj)) {
-	    rb_event_flag_t event;
-	    if ((event = event_name_to_flag(obj)) != RUBY_EVENT_NONE) {
-		ADD_TRACE(anchor, event);
-	    }
-	    else {
-		LABEL *label = register_label(iseq, labels_table, obj);
-		ADD_LABEL(anchor, label);
-	    }
+	    LABEL *label = register_label(iseq, labels_table, obj);
+	    ADD_LABEL(anchor, label);
 	}
 	else if (FIXNUM_P(obj)) {
 	    line_no = NUM2INT(obj);
@@ -7569,17 +5689,14 @@ iseq_build_from_ary_body(rb_iseq_t *iseq, LINK_ANCHOR *const anchor,
 	    insn = (argc < 0) ? Qnil : RARRAY_AREF(obj, 0);
 	    if (st_lookup(insn_table, (st_data_t)insn, &insn_id) == 0) {
 		/* TODO: exception */
-		COMPILE_ERROR(iseq, line_no,
-			      "unknown instruction: %+"PRIsVALUE, insn);
-		ret = COMPILE_NG;
-		break;
+		RB_GC_GUARD(insn) = rb_inspect(insn);
+		rb_compile_error(RSTRING_PTR(iseq->location.path), line_no,
+				 "unknown instruction: %s", RSTRING_PTR(insn));
 	    }
 
 	    if (argc != insn_len((VALUE)insn_id)-1) {
-		COMPILE_ERROR(iseq, line_no,
-			      "operand size mismatch");
-		ret = COMPILE_NG;
-		break;
+		rb_compile_error(RSTRING_PTR(iseq->location.path), line_no,
+				 "operand size mismatch");
 	    }
 
 	    if (argc > 0) {
@@ -7604,7 +5721,7 @@ iseq_build_from_ary_body(rb_iseq_t *iseq, LINK_ANCHOR *const anchor,
 		      case TS_ISEQ:
 			{
 			    if (op != Qnil) {
-				argv[j] = (VALUE)iseq_build_load_iseq(iseq, op);
+				argv[j] = iseq_build_load_iseq(iseq, op);
 			    }
 			    else {
 				argv[j] = 0;
@@ -7612,51 +5729,53 @@ iseq_build_from_ary_body(rb_iseq_t *iseq, LINK_ANCHOR *const anchor,
 			}
 			break;
 		      case TS_GENTRY:
-			op = rb_to_symbol_type(op);
+			op = rb_convert_type(op, T_SYMBOL, "Symbol", "to_sym");
 			argv[j] = (VALUE)rb_global_entry(SYM2ID(op));
 			break;
 		      case TS_IC:
 			argv[j] = op;
-			if (NUM2UINT(op) >= iseq->body->is_size) {
-			    iseq->body->is_size = NUM2INT(op) + 1;
+			if (NUM2INT(op) >= iseq->is_size) {
+			    iseq->is_size = NUM2INT(op) + 1;
 			}
 			break;
 		      case TS_CALLINFO:
-			argv[j] = iseq_build_callinfo_from_hash(iseq, op);
-			break;
-		      case TS_CALLCACHE:
-			argv[j] = Qfalse;
+			{
+			    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);
+			}
 			break;
 		      case TS_ID:
-			argv[j] = rb_to_symbol_type(op);
+			argv[j] = rb_convert_type(op, T_SYMBOL,
+						  "Symbol", "to_sym");
 			break;
 		      case TS_CDHASH:
 			{
 			    int i;
-			    VALUE map = rb_hash_new_with_size(RARRAY_LEN(op)/2);
-
-			    rb_hash_tbl_raw(map)->type = &cdhash_type;
-			    op = rb_to_array_type(op);
+			    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 key = RARRAY_AREF(op, i);
-				VALUE sym = RARRAY_AREF(op, i+1);
+				VALUE sym = rb_ary_entry(op, i+1);
 				LABEL *label =
 				  register_label(iseq, labels_table, sym);
-				rb_hash_aset(map, key, (VALUE)label | 1);
+				rb_ary_store(op, i+1, (VALUE)label | 1);
 			    }
-			    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;
+			    argv[j] = op;
+			    iseq_add_mark_object_compile_time(iseq, op);
 			}
 			break;
 		      default:
@@ -7672,1847 +5791,143 @@ iseq_build_from_ary_body(rb_iseq_t *iseq, LINK_ANCHOR *const anchor,
 	    rb_raise(rb_eTypeError, "unexpected object for instruction");
 	}
     }
-    DATA_PTR(labels_wrapper) = 0;
     validate_labels(iseq, labels_table);
-    if (!ret) return ret;
-    return iseq_setup(iseq, anchor);
-}
-
-#define CHECK_ARRAY(v)   rb_to_array_type(v)
-#define CHECK_SYMBOL(v)  rb_to_symbol_type(v)
-
-static int
-int_param(int *dst, VALUE param, VALUE sym)
-{
-    VALUE val = rb_hash_aref(param, sym);
-    if (FIXNUM_P(val)) {
-	*dst = FIX2INT(val);
-	return TRUE;
-    }
-    else if (!NIL_P(val)) {
-	rb_raise(rb_eTypeError, "invalid %+"PRIsVALUE" Fixnum: %+"PRIsVALUE,
-		 sym, val);
-    }
-    return FALSE;
+    st_free_table(labels_table);
+    iseq_setup(iseq, anchor);
+    return COMPILE_OK;
 }
 
-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 = (ID *)&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) {
-	keyword->table = ids;
-	return keyword;
-    }
-
-    dvs = ALLOC_N(VALUE, (unsigned int)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;
+#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;}
 
-    return keyword;
-}
-
-void
-rb_iseq_build_from_ary(rb_iseq_t *iseq, VALUE misc, VALUE locals, VALUE params,
+VALUE
+rb_iseq_build_from_ary(rb_iseq_t *iseq, VALUE locals, VALUE args,
 			 VALUE exception, VALUE body)
 {
-#define SYM(s) ID2SYM(rb_intern(#s))
-    int i, len;
-    unsigned int arg_size, local_size, stack_max;
+    int i;
     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);
 
-    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->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;
 
-    for (i = 0; i < len; i++) {
+    for (i=0; i<RARRAY_LEN(locals); i++) {
 	VALUE lv = RARRAY_AREF(locals, i);
+	tbl[i] = FIXNUM_P(lv) ? (ID)FIX2LONG(lv) : SYM2ID(CHECK_SYMBOL(lv));
+    }
 
-	if (sym_arg_rest == lv) {
-	    tbl[i] = 0;
+    /* 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;
 	}
 	else {
-	    tbl[i] = FIXNUM_P(lv) ? (ID)FIX2LONG(lv) : SYM2ID(CHECK_SYMBOL(lv));
+	    iseq->arg_size = iseq->argc + (iseq->arg_opts ? iseq->arg_opts - 1 : 0);
 	}
-    }
 
-#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
-    {
-#define INT_PARAM(F) F = (int_param(&x, misc, SYM(F)) ? (unsigned int)x : 0)
-	int x;
-	INT_PARAM(arg_size);
-	INT_PARAM(local_size);
-	INT_PARAM(stack_max);
-#undef INT_PARAM
-    }
-
-    if (RB_TYPE_P(arg_opt_labels, 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;
+	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));
 	}
-    }
-    else if (!NIL_P(arg_opt_labels)) {
-	rb_raise(rb_eTypeError, ":opt param is not an array: %+"PRIsVALUE,
-		 arg_opt_labels);
-    }
-
-    if (RB_TYPE_P(keywords, T_ARRAY)) {
-	iseq->body->param.keyword = iseq_build_kw(iseq, params, keywords);
-    }
-    else if (!NIL_P(keywords)) {
-	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;
+	iseq->arg_simple = NUM2INT(arg_simple);
     }
 
-    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_wrapper);
-
-    iseq->body->param.size = arg_size;
-    iseq->body->local_table_size = local_size;
-    iseq->body->stack_max = stack_max;
+    iseq_build_from_ary_body(iseq, anchor, body, labels_table);
+    return iseq->self;
 }
 
 /* for parser */
 
 int
-rb_dvar_defined(ID id, const struct rb_block *base_block)
+rb_dvar_defined(ID id)
 {
-    const rb_iseq_t *iseq;
-
-    if (base_block && (iseq = vm_block_iseq(base_block)) != NULL) {
-	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
+    rb_thread_t *th = GET_THREAD();
+    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
 	       ) {
-	    unsigned int i;
+	    int i;
 
-	    for (i = 0; i < iseq->body->local_table_size; i++) {
-		if (iseq->body->local_table[i] == id) {
+	    for (i = 0; i < iseq->local_table_size; i++) {
+		if (iseq->local_table[i] == id) {
 		    return 1;
 		}
 	    }
-	    iseq = iseq->body->parent_iseq;
+	    iseq = iseq->parent_iseq;
 	}
     }
     return 0;
 }
 
 int
-rb_local_defined(ID id, const struct rb_block *base_block)
-{
-    const rb_iseq_t *iseq;
-
-    if (base_block && (iseq = vm_block_iseq(base_block)) != NULL) {
-	unsigned int i;
-	iseq = iseq->body->local_iseq;
-
-	for (i=0; i<iseq->body->local_table_size; i++) {
-	    if (iseq->body->local_table[i] == id) {
-		return 1;
-	    }
-	}
-    }
-    return 0;
-}
-
-static int
-caller_location(VALUE *path, VALUE *realpath)
-{
-    const rb_execution_context_t *ec = GET_EC();
-    const rb_control_frame_t *const cfp =
-        rb_vm_get_ruby_level_next_cfp(ec, ec->cfp);
-
-    if (cfp) {
-	int line = rb_vm_get_sourceline(cfp);
-	*path = rb_iseq_path(cfp->iseq);
-	*realpath = rb_iseq_realpath(cfp->iseq);
-	return line;
-    }
-    else {
-	*path = rb_fstring_cstr("<compiled>");
-	*realpath = *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 *const, VALUE))
-{
-    VALUE path, realpath;
-    accessor_args acc;
-
-    acc.arg = arg;
-    acc.func = func;
-    acc.line = caller_location(&path, &realpath);
-    return rb_iseq_new_with_opt((const NODE *)IFUNC_NEW(build, (VALUE)&acc, 0),
-				rb_sym2str(name), path, realpath,
-				INT2FIX(acc.line), 0, ISEQ_TYPE_METHOD, 0);
-}
-
-static VALUE
-for_self_aref(rb_iseq_t *iseq, LINK_ANCHOR *const 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 *const 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_GETLOCAL(ret, line, numberof(vars)-1, 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)
+rb_local_defined(ID id)
 {
-    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_thread_t *th = GET_THREAD();
     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;
-	    }
-	}
-	if (insn_len(insn) != op_index+1) {
-	    rb_raise(rb_eRuntimeError, "operand size mismatch");
-	}
-    }
-
-
-    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_insn_info_entry *
-ibf_dump_insns_info(struct ibf_dump *dump, const rb_iseq_t *iseq)
-{
-    return IBF_W(iseq->body->insns_info, struct iseq_insn_info_entry, iseq->body->insns_info_size);
-}
-
-static struct iseq_insn_info_entry *
-ibf_load_insns_info(const struct ibf_load *load, const struct rb_iseq_constant_body *body)
-{
-    return IBF_R(body->insns_info, struct iseq_insn_info_entry, body->insns_info_size);
-}
-
-static ID *
-ibf_dump_local_table(struct ibf_dump *dump, const rb_iseq_t *iseq)
-{
-    const int size = iseq->body->local_table_size;
-    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_table_size;
-
-    if (size > 0) {
-	ID *table = IBF_R(body->local_table, ID, size);
+    if (th->base_block && th->base_block->iseq) {
 	int i;
+	iseq = th->base_block->iseq->local_iseq;
 
-	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.pathobj = ibf_dump_object(dump, dump_body.location.pathobj); /* TODO: freeze */
-    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.insns_info =      ibf_dump_insns_info(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->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->insns_info_size = body->insns_info_size;
-
-    RB_OBJ_WRITE(iseq, &load_body->mark_ary, iseq_mark_ary_create((int)body->mark_ary));
-
-    {
-	VALUE realpath = Qnil, path = ibf_load_object(load, body->location.pathobj);
-	if (RB_TYPE_P(path, T_STRING)) {
-	    realpath = path = rb_fstring(path);
-	}
-	else if (RB_TYPE_P(path, T_ARRAY)) {
-	    VALUE pathobj = path;
-	    if (RARRAY_LEN(pathobj) != 2) {
-		rb_raise(rb_eRuntimeError, "path object size mismatch");
-	    }
-	    path = rb_fstring(RARRAY_AREF(pathobj, 0));
-	    realpath = rb_fstring(RARRAY_AREF(pathobj, 1));
-	}
-	else {
-	    rb_raise(rb_eRuntimeError, "unexpected path object");
-	}
-	rb_iseq_pathobj_set(iseq, path, realpath);
-    }
-
-    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->location.code_range = body->location.code_range;
-
-    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->insns_info      = ibf_load_insns_info(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_with_size(hash->len);
-    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_CLEAR(iseq);
-    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);
+	for (i=0; i<iseq->local_table_size; i++) {
+	    if (iseq->local_table[i] == id) {
+		return 1;
 	    }
-	    return iseq;
 	}
     }
+    return 0;
 }
 
-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)
-{
-    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)
-{
-    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)
+int
+rb_parse_in_eval(void)
 {
-    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;
+    return GET_THREAD()->parse_in_eval > 0;
 }
 
-VALUE
-iseq_ibf_load_extra_data(VALUE str)
+int
+rb_parse_in_main(void)
 {
-    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;
+    return GET_THREAD()->parse_in_eval < 0;
 }
diff --git a/complex.c b/complex.c
index e06faa813b..3e9d63117a 100644
--- a/complex.c
+++ b/complex.c
@@ -5,38 +5,24 @@
   which is written in ruby.
 */
 
-#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 "ruby.h"
 #include "internal.h"
+#include <math.h>
 
 #define NDEBUG
-#include "ruby_assert.h"
+#include <assert.h>
 
 #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 VALUE nucomp_abs(VALUE self);
-static VALUE nucomp_arg(VALUE self);
-
-static ID id_abs, id_arg,
-    id_denominator, 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,
-    id_finite_p, id_infinite_p, id_rationalize,
-    id_PI;
+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,
+    id_i_real, id_i_imag;
 
 #define f_boolcast(x) ((x) ? Qtrue : Qfalse)
 
@@ -81,15 +67,29 @@ inline static VALUE
 f_add(VALUE x, VALUE y)
 {
 #ifndef PRESERVE_SIGNEDZERO
-    if (FIXNUM_P(y) && FIXNUM_ZERO_P(y))
+    if (FIXNUM_P(y) && FIX2LONG(y) == 0)
 	return x;
-    else if (FIXNUM_P(x) && FIXNUM_ZERO_P(x))
+    else if (FIXNUM_P(x) && FIX2LONG(x) == 0)
 	return y;
 #endif
     return rb_funcall(x, '+', 1, 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)
@@ -97,31 +97,32 @@ f_div(VALUE x, VALUE y)
     return rb_funcall(x, '/', 1, y);
 }
 
-inline static int
+inline static VALUE
 f_gt_p(VALUE x, VALUE y)
 {
-    if (RB_INTEGER_TYPE_P(x)) {
-        if (FIXNUM_P(x) && FIXNUM_P(y))
-            return (SIGNED_VALUE)x > (SIGNED_VALUE)y;
-        return RTEST(rb_int_gt(x, y));
-    }
-    else if (RB_FLOAT_TYPE_P(x))
-        return RTEST(rb_float_gt(x, y));
-    else if (RB_TYPE_P(x, T_RATIONAL)) {
-        int const cmp = rb_cmpint(rb_rational_cmp(x, y), x, y);
-        return cmp > 0;
-    }
-    return RTEST(rb_funcall(x, '>', 1, y));
+    if (FIXNUM_P(x) && FIXNUM_P(y))
+	return f_boolcast(FIX2LONG(x) > FIX2LONG(y));
+    return rb_funcall(x, '>', 1, 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
     if (FIXNUM_P(y)) {
 	long iy = FIX2LONG(y);
 	if (iy == 0) {
-	    if (RB_INTEGER_TYPE_P(x))
+	    if (FIXNUM_P(x) || RB_TYPE_P(x, T_BIGNUM))
 		return ZERO;
 	}
 	else if (iy == 1)
@@ -130,7 +131,7 @@ f_mul(VALUE x, VALUE y)
     else if (FIXNUM_P(x)) {
 	long ix = FIX2LONG(x);
 	if (ix == 0) {
-	    if (RB_INTEGER_TYPE_P(y))
+	    if (FIXNUM_P(y) || RB_TYPE_P(y, T_BIGNUM))
 		return ZERO;
 	}
 	else if (ix == 1)
@@ -144,37 +145,23 @@ inline static VALUE
 f_sub(VALUE x, VALUE y)
 {
 #ifndef PRESERVE_SIGNEDZERO
-    if (FIXNUM_P(y) && FIXNUM_ZERO_P(y))
+    if (FIXNUM_P(y) && FIX2LONG(y) == 0)
 	return x;
 #endif
     return rb_funcall(x, '-', 1, y);
 }
 
 fun1(abs)
+fun1(abs2)
 fun1(arg)
+fun1(conj)
 fun1(denominator)
-
-static VALUE nucomp_negate(VALUE self);
-
-inline static VALUE
-f_negate(VALUE x)
-{
-    if (RB_INTEGER_TYPE_P(x)) {
-        return rb_int_uminus(x);
-    }
-    else if (RB_FLOAT_TYPE_P(x)) {
-        return rb_float_uminus(x);
-    }
-    else if (RB_TYPE_P(x, T_RATIONAL)) {
-        return rb_rational_uminus(x);
-    }
-    else if (RB_TYPE_P(x, T_COMPLEX)) {
-        return nucomp_negate(x);
-    }
-    return rb_funcall(x, id_negate, 0);
-}
-
+fun1(floor)
+fun1(imag)
+fun1(inspect)
+fun1(negate)
 fun1(numerator)
+fun1(real)
 fun1(real_p)
 
 inline static VALUE
@@ -193,103 +180,133 @@ f_to_f(VALUE x)
 }
 
 fun1(to_r)
+fun1(to_s)
 
-inline static int
+fun2(divmod)
+
+inline static VALUE
 f_eqeq_p(VALUE x, VALUE y)
 {
     if (FIXNUM_P(x) && FIXNUM_P(y))
-	return x == y;
-    else if (RB_FLOAT_TYPE_P(x) || RB_FLOAT_TYPE_P(y))
-	return NUM2DBL(x) == NUM2DBL(y);
-    return (int)rb_equal(x, y);
+	return f_boolcast(FIX2LONG(x) == FIX2LONG(y));
+    return rb_funcall(x, id_eqeq_p, 1, y);
 }
 
 fun2(expt)
 fun2(fdiv)
+fun2(idiv)
 fun2(quo)
 
-inline static int
+inline static VALUE
 f_negative_p(VALUE x)
 {
-    if (RB_INTEGER_TYPE_P(x))
-        return INT_NEGATIVE_P(x);
-    else if (RB_FLOAT_TYPE_P(x))
-        return RFLOAT_VALUE(x) < 0.0;
-    else if (RB_TYPE_P(x, T_RATIONAL))
-        return INT_NEGATIVE_P(RRATIONAL(x)->num);
-    return rb_num_negative_p(x);
+    if (FIXNUM_P(x))
+	return f_boolcast(FIX2LONG(x) < 0);
+    return rb_funcall(x, '<', 1, ZERO);
 }
 
 #define f_positive_p(x) (!f_negative_p(x))
 
-inline static int
+inline static VALUE
 f_zero_p(VALUE x)
 {
-    if (RB_INTEGER_TYPE_P(x)) {
-        return FIXNUM_ZERO_P(x);
+    if (RB_TYPE_P(x, T_FIXNUM)) {
+	return f_boolcast(FIX2LONG(x) == 0);
+    }
+    else if (RB_TYPE_P(x, T_BIGNUM)) {
+	return Qfalse;
     }
     else if (RB_TYPE_P(x, T_RATIONAL)) {
-        const VALUE num = RRATIONAL(x)->num;
-        return FIXNUM_ZERO_P(num);
+	VALUE num = RRATIONAL(x)->num;
+
+	return f_boolcast(FIXNUM_P(num) && FIX2LONG(num) == 0);
     }
-    return (int)rb_equal(x, ZERO);
+    return rb_funcall(x, id_eqeq_p, 1, ZERO);
 }
 
 #define f_nonzero_p(x) (!f_zero_p(x))
 
-VALUE rb_flo_is_finite_p(VALUE num);
-inline static int
-f_finite_p(VALUE x)
-{
-    if (RB_INTEGER_TYPE_P(x)) {
-        return TRUE;
-    }
-    else if (RB_FLOAT_TYPE_P(x)) {
-	return (int)rb_flo_is_finite_p(x);
-    }
-    else if (RB_TYPE_P(x, T_RATIONAL)) {
-	return TRUE;
-    }
-    return RTEST(rb_funcallv(x, id_finite_p, 0, 0));
-}
-
-VALUE rb_flo_is_infinite_p(VALUE num);
 inline static VALUE
-f_infinite_p(VALUE x)
+f_one_p(VALUE x)
 {
-    if (RB_INTEGER_TYPE_P(x)) {
-        return Qnil;
+    if (RB_TYPE_P(x, T_FIXNUM)) {
+	return f_boolcast(FIX2LONG(x) == 1);
     }
-    else if (RB_FLOAT_TYPE_P(x)) {
-	return rb_flo_is_infinite_p(x);
+    else if (RB_TYPE_P(x, T_BIGNUM)) {
+	return Qfalse;
     }
     else if (RB_TYPE_P(x, T_RATIONAL)) {
-        return Qnil;
+	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 rb_funcallv(x, id_infinite_p, 0, 0);
+    return rb_funcall(x, id_eqeq_p, 1, ONE);
 }
 
-inline static int
+inline static VALUE
 f_kind_of_p(VALUE x, VALUE c)
 {
-    return (int)rb_obj_is_kind_of(x, c);
+    return rb_obj_is_kind_of(x, c);
 }
 
-inline static int
+inline static VALUE
 k_numeric_p(VALUE x)
 {
     return f_kind_of_p(x, rb_cNumeric);
 }
 
-#define k_exact_p(x) (!RB_FLOAT_TYPE_P(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);
+}
+
+inline static VALUE
+k_bignum_p(VALUE x)
+{
+    return f_kind_of_p(x, rb_cBignum);
+}
+
+inline static VALUE
+k_float_p(VALUE x)
+{
+    return f_kind_of_p(x, rb_cFloat);
+}
+
+inline static VALUE
+k_rational_p(VALUE x)
+{
+    return f_kind_of_p(x, rb_cRational);
+}
+
+inline static VALUE
+k_complex_p(VALUE x)
+{
+    return f_kind_of_p(x, rb_cComplex);
+}
+
+#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 = RCOMPLEX(x)
+    struct RComplex *dat;\
+    dat = ((struct RComplex *)(x))
 
 #define get_dat2(x,y) \
-    struct RComplex *adat = RCOMPLEX(x), *bdat = RCOMPLEX(y)
+    struct RComplex *adat, *bdat;\
+    adat = ((struct RComplex *)(x));\
+    bdat = ((struct RComplex *)(y))
 
 inline static VALUE
 nucomp_s_new_internal(VALUE klass, VALUE real, VALUE imag)
@@ -298,7 +315,6 @@ nucomp_s_new_internal(VALUE klass, VALUE real, VALUE imag)
 
     RCOMPLEX_SET_REAL(obj, real);
     RCOMPLEX_SET_IMAG(obj, imag);
-    OBJ_FREEZE_RAW(obj);
 
     return (VALUE)obj;
 }
@@ -336,15 +352,15 @@ nucomp_s_new_bang(int argc, VALUE *argv, VALUE klass)
 inline static VALUE
 f_complex_new_bang1(VALUE klass, VALUE x)
 {
-    assert(!RB_TYPE_P(x, T_COMPLEX));
+    assert(!k_complex_p(x));
     return nucomp_s_new_internal(klass, x, ZERO);
 }
 
 inline static VALUE
 f_complex_new_bang2(VALUE klass, VALUE x, VALUE y)
 {
-    assert(!RB_TYPE_P(x, T_COMPLEX));
-    assert(!RB_TYPE_P(y, T_COMPLEX));
+    assert(!k_complex_p(x));
+    assert(!k_complex_p(y));
     return nucomp_s_new_internal(klass, x, y);
 }
 
@@ -360,15 +376,14 @@ nucomp_canonicalization(int f)
 {
     canonicalization = f;
 }
-#else
-#define canonicalization 0
 #endif
 
 inline static void
 nucomp_real_check(VALUE num)
 {
-    if (!RB_INTEGER_TYPE_P(num) &&
-	!RB_FLOAT_TYPE_P(num) &&
+    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");
@@ -442,14 +457,19 @@ 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(!RB_TYPE_P(x, T_COMPLEX));
+    assert(!k_complex_p(x));
     return nucomp_s_canonicalize_internal(klass, x, y);
 }
 
-static VALUE nucomp_s_convert(int argc, VALUE *argv, VALUE klass);
-
 /*
  * call-seq:
  *    Complex(x[, y])  ->  numeric
@@ -458,8 +478,6 @@ static VALUE nucomp_s_convert(int argc, VALUE *argv, VALUE klass);
  *
  *    Complex(1, 2)    #=> (1+2i)
  *    Complex('1+2i')  #=> (1+2i)
- *    Complex(nil)     #=> TypeError
- *    Complex(1, nil)  #=> TypeError
  *
  * Syntax of string form:
  *
@@ -486,7 +504,7 @@ static VALUE nucomp_s_convert(int argc, VALUE *argv, VALUE klass);
 static VALUE
 nucomp_f_complex(int argc, VALUE *argv, VALUE klass)
 {
-    return nucomp_s_convert(argc, argv, rb_cComplex);
+    return rb_funcall2(rb_cComplex, id_convert, argc, argv);
 }
 
 #define imp1(n) \
@@ -496,9 +514,20 @@ m_##n##_bang(VALUE x)\
     return rb_math_##n(x);\
 }
 
+#define imp2(n) \
+inline static VALUE \
+m_##n##_bang(VALUE x, VALUE y)\
+{\
+    return rb_math_##n(x, y);\
+}
+
+imp2(atan2)
 imp1(cos)
 imp1(cosh)
 imp1(exp)
+imp2(hypot)
+
+#define m_hypot(x,y) m_hypot_bang((x),(y))
 
 static VALUE
 m_log_bang(VALUE x)
@@ -508,6 +537,7 @@ m_log_bang(VALUE x)
 
 imp1(sin)
 imp1(sinh)
+imp1(sqrt)
 
 static VALUE
 m_cos(VALUE x)
@@ -540,23 +570,6 @@ m_sin(VALUE x)
 }
 
 #if 0
-imp1(sqrt)
-
-VALUE
-rb_complex_sqrt(VALUE x)
-{
-    int pos;
-    VALUE a, re, im;
-    get_dat1(x);
-
-    pos = f_positive_p(dat->imag);
-    a = f_abs(x);
-    re = m_sqrt_bang(f_div(f_add(a, dat->real), TWO));
-    im = m_sqrt_bang(f_div(f_sub(a, dat->real), TWO));
-    if (!pos) im = f_negate(im);
-    return f_complex_new2(rb_cComplex, re, im);
-}
-
 static VALUE
 m_sqrt(VALUE x)
 {
@@ -565,48 +578,26 @@ m_sqrt(VALUE x)
 	    return m_sqrt_bang(x);
 	return f_complex_new2(rb_cComplex, ZERO, m_sqrt_bang(f_negate(x)));
     }
-    return rb_complex_sqrt(x);
+    else {
+	get_dat1(x);
+
+	if (f_negative_p(dat->imag))
+	    return f_conj(m_sqrt(f_conj(x)));
+	else {
+	    VALUE a = f_abs(x);
+	    return f_complex_new2(rb_cComplex,
+				  m_sqrt_bang(f_div(f_add(a, dat->real), TWO)),
+				  m_sqrt_bang(f_div(f_sub(a, dat->real), TWO)));
+	}
+    }
 }
 #endif
 
-static VALUE
+inline static VALUE
 f_complex_polar(VALUE klass, VALUE x, VALUE y)
 {
-    assert(!RB_TYPE_P(x, T_COMPLEX));
-    assert(!RB_TYPE_P(y, T_COMPLEX));
-    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);
-    }
+    assert(!k_complex_p(x));
+    assert(!k_complex_p(y));
     return nucomp_s_canonicalize_internal(klass,
 					  f_mul(x, m_cos(y)),
 					  f_mul(x, m_sin(y)));
@@ -631,8 +622,8 @@ nucomp_s_polar(int argc, VALUE *argv, VALUE klass)
     switch (rb_scan_args(argc, argv, "11", &abs, &arg)) {
       case 1:
 	nucomp_real_check(abs);
-	if (canonicalization) return abs;
-	return nucomp_s_new_internal(klass, abs, ZERO);
+	arg = ZERO;
+	break;
       default:
 	nucomp_real_check(abs);
 	nucomp_real_check(arg);
@@ -690,28 +681,17 @@ nucomp_negate(VALUE self)
 			f_negate(dat->real), f_negate(dat->imag));
 }
 
-/*
- * call-seq:
- *    cmp + numeric  ->  complex
- *
- * Performs addition.
- *
- *    Complex(2, 3)  + Complex(2, 3)   #=> (4+6i)
- *    Complex(900)   + Complex(1)      #=> (901+0i)
- *    Complex(-2, 9) + Complex(-9, 2)  #=> (-11+11i)
- *    Complex(9, 8)  + 4               #=> (13+8i)
- *    Complex(20, 9) + 9.8             #=> (29.8+9i)
- */
-VALUE
-rb_complex_plus(VALUE self, VALUE other)
+inline static VALUE
+f_addsub(VALUE self, VALUE other,
+	 VALUE (*func)(VALUE, VALUE), ID id)
 {
-    if (RB_TYPE_P(other, T_COMPLEX)) {
+    if (k_complex_p(other)) {
 	VALUE real, imag;
 
 	get_dat2(self, other);
 
-	real = f_add(adat->real, bdat->real);
-	imag = f_add(adat->imag, bdat->imag);
+	real = (*func)(adat->real, bdat->real);
+	imag = (*func)(adat->imag, bdat->imag);
 
 	return f_complex_new2(CLASS_OF(self), real, imag);
     }
@@ -719,9 +699,27 @@ rb_complex_plus(VALUE self, VALUE other)
 	get_dat1(self);
 
 	return f_complex_new2(CLASS_OF(self),
-			      f_add(dat->real, other), dat->imag);
+			      (*func)(dat->real, other), dat->imag);
     }
-    return rb_num_coerce_bin(self, other, '+');
+    return rb_num_coerce_bin(self, other, id);
+}
+
+/*
+ * call-seq:
+ *    cmp + numeric  ->  complex
+ *
+ * Performs addition.
+ *
+ *    Complex(2, 3)  + Complex(2, 3)   #=> (4+6i)
+ *    Complex(900)   + Complex(1)      #=> (901+0i)
+ *    Complex(-2, 9) + Complex(-9, 2)  #=> (-11+11i)
+ *    Complex(9, 8)  + 4               #=> (13+8i)
+ *    Complex(20, 9) + 9.8             #=> (29.8+9i)
+ */
+static VALUE
+nucomp_add(VALUE self, VALUE other)
+{
+    return f_addsub(self, other, f_add, '+');
 }
 
 /*
@@ -739,36 +737,7 @@ rb_complex_plus(VALUE self, VALUE other)
 static VALUE
 nucomp_sub(VALUE self, VALUE other)
 {
-    if (RB_TYPE_P(other, T_COMPLEX)) {
-	VALUE real, imag;
-
-	get_dat2(self, other);
-
-	real = f_sub(adat->real, bdat->real);
-	imag = f_sub(adat->imag, bdat->imag);
-
-	return f_complex_new2(CLASS_OF(self), real, imag);
-    }
-    if (k_numeric_p(other) && f_real_p(other)) {
-	get_dat1(self);
-
-	return f_complex_new2(CLASS_OF(self),
-			      f_sub(dat->real, other), dat->imag);
-    }
-    return rb_num_coerce_bin(self, other, '-');
-}
-
-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);
+    return f_addsub(self, other, f_sub, '-');
 }
 
 /*
@@ -783,24 +752,18 @@ safe_mul(VALUE a, VALUE b, int az, int bz)
  *    Complex(9, 8)  * 4               #=> (36+32i)
  *    Complex(20, 9) * 9.8             #=> (196.0+88.2i)
  */
-VALUE
-rb_complex_mul(VALUE self, VALUE other)
+static VALUE
+nucomp_mul(VALUE self, VALUE other)
 {
-    if (RB_TYPE_P(other, T_COMPLEX)) {
+    if (k_complex_p(other)) {
 	VALUE real, imag;
-	VALUE areal, aimag, breal, bimag;
-	int arzero, aizero, brzero, bizero;
 
 	get_dat2(self, other);
 
-	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));
+	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));
 
 	return f_complex_new2(CLASS_OF(self), real, imag);
     }
@@ -813,18 +776,17 @@ rb_complex_mul(VALUE self, VALUE other)
     }
     return rb_num_coerce_bin(self, other, '*');
 }
-#define nucomp_mul rb_complex_mul
 
 inline static VALUE
 f_divide(VALUE self, VALUE other,
 	 VALUE (*func)(VALUE, VALUE), ID id)
 {
-    if (RB_TYPE_P(other, T_COMPLEX)) {
+    if (k_complex_p(other)) {
 	int flo;
 	get_dat2(self, other);
 
-	flo = (RB_FLOAT_TYPE_P(adat->real) || RB_FLOAT_TYPE_P(adat->imag) ||
-	       RB_FLOAT_TYPE_P(bdat->real) || RB_FLOAT_TYPE_P(bdat->imag));
+	flo = (k_float_p(adat->real) || k_float_p(adat->imag) ||
+	       k_float_p(bdat->real) || k_float_p(bdat->imag));
 
 	if (f_gt_p(f_abs(bdat->real), f_abs(bdat->imag))) {
 	    VALUE r, n;
@@ -925,17 +887,17 @@ nucomp_expt(VALUE self, VALUE other)
     if (k_numeric_p(other) && k_exact_zero_p(other))
 	return f_complex_new_bang1(CLASS_OF(self), ONE);
 
-    if (RB_TYPE_P(other, T_RATIONAL) && RRATIONAL(other)->den == LONG2FIX(1))
-	other = RRATIONAL(other)->num; /* c14n */
+    if (k_rational_p(other) && f_one_p(f_denominator(other)))
+	other = f_numerator(other); /* c14n */
 
-    if (RB_TYPE_P(other, T_COMPLEX)) {
+    if (k_complex_p(other)) {
 	get_dat1(other);
 
 	if (k_exact_zero_p(dat->imag))
 	    other = dat->real; /* c14n */
     }
 
-    if (RB_TYPE_P(other, T_COMPLEX)) {
+    if (k_complex_p(other)) {
 	VALUE r, theta, nr, ntheta;
 
 	get_dat1(other);
@@ -949,7 +911,7 @@ nucomp_expt(VALUE self, VALUE other)
 		       f_mul(dat->imag, m_log_bang(r)));
 	return f_complex_polar(CLASS_OF(self), nr, ntheta);
     }
-    if (FIXNUM_P(other)) {
+    if (k_fixnum_p(other)) {
 	if (f_gt_p(other, ZERO)) {
 	    VALUE x, z;
 	    long n;
@@ -981,12 +943,12 @@ nucomp_expt(VALUE self, VALUE other)
 	    }
 	    return z;
 	}
-	return f_expt(f_reciprocal(self), rb_int_uminus(other));
+	return f_expt(f_reciprocal(self), f_negate(other));
     }
     if (k_numeric_p(other) && f_real_p(other)) {
 	VALUE r, theta;
 
-	if (RB_TYPE_P(other, T_BIGNUM))
+	if (k_bignum_p(other))
 	    rb_warn("in a**b, b may be too big");
 
 	r = f_abs(self);
@@ -1013,7 +975,7 @@ nucomp_expt(VALUE self, VALUE other)
 static VALUE
 nucomp_eqeq_p(VALUE self, VALUE other)
 {
-    if (RB_TYPE_P(other, T_COMPLEX)) {
+    if (k_complex_p(other)) {
 	get_dat2(self, other);
 
 	return f_boolcast(f_eqeq_p(adat->real, bdat->real) &&
@@ -1024,7 +986,7 @@ nucomp_eqeq_p(VALUE self, VALUE other)
 
 	return f_boolcast(f_eqeq_p(dat->real, other) && f_zero_p(dat->imag));
     }
-    return f_boolcast(f_eqeq_p(other, self));
+    return f_eqeq_p(other, self);
 }
 
 /* :nodoc: */
@@ -1036,8 +998,8 @@ nucomp_coerce(VALUE self, VALUE other)
     if (RB_TYPE_P(other, T_COMPLEX))
 	return rb_assoc_new(other, self);
 
-    rb_raise(rb_eTypeError, "%"PRIsVALUE" can't be coerced into %"PRIsVALUE,
-	     rb_obj_class(other), rb_obj_class(self));
+    rb_raise(rb_eTypeError, "%s can't be coerced into %s",
+	     rb_obj_classname(other), rb_obj_classname(self));
     return Qnil;
 }
 
@@ -1058,17 +1020,17 @@ nucomp_abs(VALUE self)
 
     if (f_zero_p(dat->real)) {
 	VALUE a = f_abs(dat->imag);
-	if (RB_FLOAT_TYPE_P(dat->real) && !RB_FLOAT_TYPE_P(dat->imag))
+	if (k_float_p(dat->real) && !k_float_p(dat->imag))
 	    a = f_to_f(a);
 	return a;
     }
     if (f_zero_p(dat->imag)) {
 	VALUE a = f_abs(dat->real);
-	if (!RB_FLOAT_TYPE_P(dat->real) && RB_FLOAT_TYPE_P(dat->imag))
+	if (!k_float_p(dat->real) && k_float_p(dat->imag))
 	    a = f_to_f(a);
 	return a;
     }
-    return rb_math_hypot(dat->real, dat->imag);
+    return m_hypot(dat->real, dat->imag);
 }
 
 /*
@@ -1102,7 +1064,7 @@ static VALUE
 nucomp_arg(VALUE self)
 {
     get_dat1(self);
-    return rb_math_atan2(dat->imag, dat->real);
+    return m_atan2_bang(dat->imag, dat->real);
 }
 
 /*
@@ -1250,14 +1212,14 @@ nucomp_hash(VALUE self)
     n = rb_hash(dat->imag);
     h[1] = NUM2LONG(n);
     v = rb_memhash(h, sizeof(h));
-    return ST2FIX(v);
+    return LONG2FIX(v);
 }
 
 /* :nodoc: */
 static VALUE
 nucomp_eql_p(VALUE self, VALUE other)
 {
-    if (RB_TYPE_P(other, T_COMPLEX)) {
+    if (k_complex_p(other)) {
 	get_dat2(self, other);
 
 	return f_boolcast((CLASS_OF(adat->real) == CLASS_OF(bdat->real)) &&
@@ -1268,27 +1230,30 @@ nucomp_eql_p(VALUE self, VALUE other)
     return Qfalse;
 }
 
-inline static int
+inline static VALUE
 f_signbit(VALUE x)
 {
-    if (RB_FLOAT_TYPE_P(x)) {
+#if defined(HAVE_SIGNBIT) && defined(__GNUC__) && defined(__sun) && \
+    !defined(signbit)
+    extern int signbit(double);
+#endif
+    if (RB_TYPE_P(x, T_FLOAT)) {
 	double f = RFLOAT_VALUE(x);
-	return !isnan(f) && signbit(f);
+	return f_boolcast(!isnan(f) && signbit(f));
     }
     return f_negative_p(x);
 }
 
-inline static int
+inline static VALUE
 f_tpositive_p(VALUE x)
 {
-    return !f_signbit(x);
+    return f_boolcast(!f_signbit(x));
 }
 
 static VALUE
 f_format(VALUE self, VALUE (*func)(VALUE))
 {
-    VALUE s;
-    int impos;
+    VALUE s, impos;
 
     get_dat1(self);
 
@@ -1320,7 +1285,7 @@ f_format(VALUE self, VALUE (*func)(VALUE))
 static VALUE
 nucomp_to_s(VALUE self)
 {
-    return f_format(self, rb_String);
+    return f_format(self, f_to_s);
 }
 
 /*
@@ -1341,57 +1306,12 @@ nucomp_inspect(VALUE self)
     VALUE s;
 
     s = rb_usascii_str_new2("(");
-    rb_str_concat(s, f_format(self, rb_inspect));
+    rb_str_concat(s, f_format(self, f_inspect));
     rb_str_cat2(s, ")");
 
     return s;
 }
 
-#define FINITE_TYPE_P(v) (RB_INTEGER_TYPE_P(v) || RB_TYPE_P(v, T_RATIONAL))
-
-/*
- * call-seq:
- *    cmp.finite?  ->  true or false
- *
- * Returns +true+ if +cmp+'s magnitude is a finite number,
- * otherwise returns +false+.
- */
-static VALUE
-rb_complex_finite_p(VALUE self)
-{
-    get_dat1(self);
-
-    if (f_finite_p(dat->real) && f_finite_p(dat->imag)) {
-	return Qtrue;
-    }
-    return Qfalse;
-}
-
-/*
- * call-seq:
- *    cmp.infinite?  ->  nil or 1
- *
- * Returns values corresponding to the value of +cmp+'s magnitude:
- *
- * +finite+::    +nil+
- * ++Infinity+:: ++1+
- *
- *  For example:
- *
- *     (1+1i).infinite?                   #=> nil
- *     (Float::INFINITY + 1i).infinite?   #=> 1
- */
-static VALUE
-rb_complex_infinite_p(VALUE self)
-{
-    get_dat1(self);
-
-    if (NIL_P(f_infinite_p(dat->real)) && NIL_P(f_infinite_p(dat->imag))) {
-	return Qnil;
-    }
-    return ONE;
-}
-
 /* :nodoc: */
 static VALUE
 nucomp_dumper(VALUE self)
@@ -1407,7 +1327,6 @@ nucomp_loader(VALUE self, VALUE a)
 
     RCOMPLEX_SET_REAL(dat, rb_ivar_get(a, id_i_real));
     RCOMPLEX_SET_IMAG(dat, rb_ivar_get(a, id_i_imag));
-    OBJ_FREEZE_RAW(self);
 
     return self;
 }
@@ -1456,6 +1375,8 @@ rb_complex_polar(VALUE x, VALUE y)
     return f_complex_polar(rb_cComplex, x, y);
 }
 
+static VALUE nucomp_s_convert(int argc, VALUE *argv, VALUE klass);
+
 VALUE
 rb_Complex(VALUE x, VALUE y)
 {
@@ -1465,12 +1386,6 @@ rb_Complex(VALUE x, VALUE y)
     return nucomp_s_convert(2, a, rb_cComplex);
 }
 
-VALUE
-rb_complex_abs(VALUE cmp)
-{
-    return nucomp_abs(cmp);
-}
-
 /*
  * call-seq:
  *    cmp.to_i  ->  integer
@@ -1487,9 +1402,10 @@ nucomp_to_i(VALUE self)
 {
     get_dat1(self);
 
-    if (!k_exact_zero_p(dat->imag)) {
-	rb_raise(rb_eRangeError, "can't convert %"PRIsVALUE" into Integer",
-		 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));
     }
     return f_to_i(dat->real);
 }
@@ -1510,9 +1426,10 @@ nucomp_to_f(VALUE self)
 {
     get_dat1(self);
 
-    if (!k_exact_zero_p(dat->imag)) {
-	rb_raise(rb_eRangeError, "can't convert %"PRIsVALUE" into Float",
-		 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));
     }
     return f_to_f(dat->real);
 }
@@ -1535,9 +1452,10 @@ nucomp_to_r(VALUE self)
 {
     get_dat1(self);
 
-    if (!k_exact_zero_p(dat->imag)) {
-	rb_raise(rb_eRangeError, "can't convert %"PRIsVALUE" into Rational",
-		 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));
     }
     return f_to_r(dat->real);
 }
@@ -1562,11 +1480,12 @@ nucomp_rationalize(int argc, VALUE *argv, VALUE self)
 
     rb_scan_args(argc, argv, "01", NULL);
 
-    if (!k_exact_zero_p(dat->imag)) {
-       rb_raise(rb_eRangeError, "can't convert %"PRIsVALUE" into Rational",
-                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));
     }
-    return rb_funcallv(dat->real, id_rationalize, argc, argv);
+    return rb_funcall2(dat->real, rb_intern("rationalize"), argc, argv);
 }
 
 /*
@@ -1749,6 +1668,8 @@ isimagunit(int c)
 	    c == 'j' || c == 'J');
 }
 
+VALUE rb_cstr_to_rat(const char *, int);
+
 static VALUE
 str2num(char *s)
 {
@@ -1853,26 +1774,19 @@ parse_comp(const char *s, int strict,
 	   VALUE *num)
 {
     char *buf, *b;
-    VALUE tmp;
-    int ret = 1;
 
-    buf = ALLOCV_N(char, tmp, strlen(s) + 1);
+    buf = ALLOCA_N(char, strlen(s) + 1);
     b = buf;
 
     skip_ws(&s);
-    if (!read_comp(&s, strict, num, &b)) {
-	ret = 0;
-    }
-    else {
-	skip_ws(&s);
-
-	if (strict)
-	    if (*s != '\0')
-		ret = 0;
-    }
-    ALLOCV_END(tmp);
+    if (!read_comp(&s, strict, num, &b))
+	return 0;
+    skip_ws(&s);
 
-    return ret;
+    if (strict)
+	if (*s != '\0')
+	    return 0;
+    return 1;
 }
 
 static VALUE
@@ -1898,8 +1812,9 @@ string_to_c_strict(VALUE self)
 	s = (char *)"";
 
     if (!parse_comp(s, 1, &num)) {
-	rb_raise(rb_eArgError, "invalid value for convert(): %+"PRIsVALUE,
-		 self);
+	VALUE ins = f_inspect(self);
+	rb_raise(rb_eArgError, "invalid value for convert(): %s",
+		 StringValuePtr(ins));
     }
 
     return num;
@@ -2060,6 +1975,8 @@ numeric_abs2(VALUE self)
     return f_mul(self, self);
 }
 
+#define id_PI rb_intern("PI")
+
 /*
  * call-seq:
  *    num.arg    ->  0 or float
@@ -2072,8 +1989,8 @@ static VALUE
 numeric_arg(VALUE self)
 {
     if (f_positive_p(self))
-        return INT2FIX(0);
-    return DBL2NUM(M_PI);
+	return INT2FIX(0);
+    return rb_const_get(rb_mMath, id_PI);
 }
 
 /*
@@ -2089,8 +2006,6 @@ numeric_rect(VALUE self)
     return rb_assoc_new(self, INT2FIX(0));
 }
 
-static VALUE float_arg(VALUE self);
-
 /*
  * call-seq:
  *    num.polar  ->  array
@@ -2100,25 +2015,7 @@ static VALUE float_arg(VALUE self);
 static VALUE
 numeric_polar(VALUE self)
 {
-    VALUE abs, arg;
-
-    if (RB_INTEGER_TYPE_P(self)) {
-        abs = rb_int_abs(self);
-        arg = numeric_arg(self);
-    }
-    else if (RB_FLOAT_TYPE_P(self)) {
-        abs = rb_float_abs(self);
-        arg = float_arg(self);
-    }
-    else if (RB_TYPE_P(self, T_RATIONAL)) {
-        abs = rb_rational_abs(self);
-        arg = numeric_arg(self);
-    }
-    else {
-        abs = f_abs(self);
-        arg = f_arg(self);
-    }
-    return rb_assoc_new(abs, arg);
+    return rb_assoc_new(f_abs(self), f_arg(self));
 }
 
 /*
@@ -2158,10 +2055,9 @@ float_arg(VALUE self)
  * and i is imaginary unit.  Real a equals complex a+0i
  * mathematically.
  *
- * Complex object can be created as literal, and also by using
- * Kernel#Complex, Complex::rect, Complex::polar or to_c method.
+ * In ruby, you can create complex object with 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)
@@ -2195,23 +2091,31 @@ 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 */
-    id_finite_p = rb_intern("finite?");
-    id_infinite_p = rb_intern("infinite?");
-    id_rationalize = rb_intern("rationalize");
-    id_PI = rb_intern("PI");
 
     rb_cComplex = rb_define_class("Complex", rb_cNumeric);
 
@@ -2231,9 +2135,13 @@ Init_Complex(void)
 
     rb_define_global_function("Complex", nucomp_f_complex, -1);
 
-    rb_undef_methods_from(rb_cComplex, rb_mComparable);
     rb_undef_method(rb_cComplex, "%");
+    rb_undef_method(rb_cComplex, "<");
+    rb_undef_method(rb_cComplex, "<=");
     rb_undef_method(rb_cComplex, "<=>");
+    rb_undef_method(rb_cComplex, ">");
+    rb_undef_method(rb_cComplex, ">=");
+    rb_undef_method(rb_cComplex, "between?");
     rb_undef_method(rb_cComplex, "div");
     rb_undef_method(rb_cComplex, "divmod");
     rb_undef_method(rb_cComplex, "floor");
@@ -2245,12 +2153,16 @@ 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);
 
     rb_define_method(rb_cComplex, "-@", nucomp_negate, 0);
-    rb_define_method(rb_cComplex, "+", rb_complex_plus, 1);
+    rb_define_method(rb_cComplex, "+", nucomp_add, 1);
     rb_define_method(rb_cComplex, "-", nucomp_sub, 1);
     rb_define_method(rb_cComplex, "*", nucomp_mul, 1);
     rb_define_method(rb_cComplex, "/", nucomp_div, 1);
@@ -2292,14 +2204,8 @@ 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_method(rb_cComplex, "finite?", rb_complex_finite_p, 0);
-    rb_define_method(rb_cComplex, "infinite?", rb_complex_infinite_p, 0);
-
     rb_define_private_method(rb_cComplex, "marshal_dump", nucomp_marshal_dump, 0);
-    compat = rb_define_class_under(rb_cComplex, "compatible", rb_cObject); /* :nodoc: */
+    compat = rb_define_class_under(rb_cComplex, "compatible", rb_cObject);
     rb_define_private_method(compat, "marshal_load", nucomp_marshal_load, 1);
     rb_marshal_define_compat(rb_cComplex, compat, nucomp_dumper, nucomp_loader);
 
@@ -2341,8 +2247,6 @@ 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.ac b/configure.ac
deleted file mode 100644
index 90ce91bf7c..0000000000
--- a/configure.ac
+++ /dev/null
@@ -1,4590 +0,0 @@
-dnl Process this file with autoconf to produce a configure script.
-AC_INIT()
-{
-AC_CONFIG_AUX_DIR(tool)
-
-AC_PREREQ(2.67)
-
-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_version_prereq([2.70], [-1], [
-# suppress error messages, rm: cannot remove 'conftest.dSYM', from
-# AC_EGREP_CPP with CFLAGS=-g on Darwin.
-AS_CASE([$build_os], [darwin*], [
-rm() {
-    rm_recursive=''
-    for arg do
-	AS_CASE("$arg",
-		[--*], [],
-		[-*r*], [break],
-		[conftest.*], [AS_IF([test -d "$arg"], [rm_recursive=-r; break])],
-		[])
-    done
-    command rm $rm_recursive "[$]@"
-}
-])])])
-
-{ # environment section
-
-HAVE_BASERUBY=yes
-AC_ARG_WITH(baseruby,
-	AS_HELP_STRING([--with-baseruby=RUBY], [use RUBY as baseruby; RUBY is the pathname of ruby]),
-	[AS_CASE(["$withval"],
-	    [*ruby*],[BASERUBY=$withval],
-	    [no],[HAVE_BASERUBY=no],
-	    [AC_MSG_ERROR(need ruby)])
-	],
-	[
-		AC_PATH_PROG([BASERUBY], [ruby], [false])
-	])
-AS_IF([test "$HAVE_BASERUBY" = yes -a "`RUBYOPT=- $BASERUBY -e 'print 42' 2>/dev/null`" = 42], [
-    AS_IF([test "`RUBYOPT=- $BASERUBY --disable=gems -e 'print 42' 2>/dev/null`" = 42], [
-	BASERUBY="$BASERUBY --disable=gems"
-    ])
-    $BASERUBY -C "$srcdir" tool/downloader.rb -d tool -e gnu config.guess config.sub
-], [
-    BASERUBY="echo executable host ruby is required.  use --with-baseruby option.; false"
-    HAVE_BASERUBY=no
-])
-AC_SUBST(BASERUBY)
-AC_SUBST(HAVE_BASERUBY)
-
-: ${GIT=git}
-HAVE_GIT=yes
-AC_ARG_WITH(git,
-	AS_HELP_STRING([--without-git], [never use git]),
-	[AS_CASE([$withval],
-	    [no],  [GIT=never-use HAVE_GIT=no],
-	    [yes], [],
-	    [GIT=$withval])])
-AS_IF([test x"$HAVE_GIT" = xyes], [command -v "$GIT" > /dev/null || HAVE_GIT=no])
-AC_SUBST(GIT)
-AC_SUBST(HAVE_GIT)
-
-AC_DEFUN([RUBY_MINGW32],
-[AS_CASE(["$host_os"],
-[cygwin*], [
-AC_CACHE_CHECK(for mingw32 environment, rb_cv_mingw32,
-[AC_TRY_CPP([
-#ifndef __MINGW32__
-# error
-#endif
-], rb_cv_mingw32=yes,rb_cv_mingw32=no)
-rm -f conftest*])
-AS_IF([test "$rb_cv_mingw32" = yes], [
-    target_os="mingw32"
-    : ${ac_tool_prefix:="`expr "$CC" : ['\(.*-\)g\?cc[^/]*$']`"}
-])
-])
-AS_CASE(["$target_os"], [mingw*msvc], [
-target_os="`echo ${target_os} | sed 's/msvc$//'`"
-])
-AS_CASE(["$target_cpu-$target_os"], [x86_64-mingw*], [
-target_cpu=x64
-])
-])
-
-AC_DEFUN([RUBY_CPPOUTFILE],
-[AC_CACHE_CHECK(whether ${CPP} accepts -o, rb_cv_cppoutfile,
-[save_CPPFLAGS="$CPPFLAGS"
-CPPFLAGS='-o conftest-1.i'
-rb_cv_cppoutfile=no
-AC_TRY_CPP([test-for-cppout],
-	   [grep test-for-cppout conftest-1.i > /dev/null && rb_cv_cppoutfile=yes])
-CPPFLAGS="$save_CPPFLAGS"
-rm -f conftest*])
-AS_IF([test "$rb_cv_cppoutfile" = yes], [
-  CPPOUTFILE='-o conftest.i'
-], [test "$rb_cv_cppoutfile" = no], [
-  CPPOUTFILE='> conftest.i'
-], [test -n "$rb_cv_cppoutfile"], [
-  CPPOUTFILE="$rb_cv_cppoutfile"
-])
-AC_SUBST(CPPOUTFILE)])
-
-AC_DEFUN([RUBY_PROG_GNU_LD],
-[AC_CACHE_CHECK(whether the linker is GNU ld, rb_cv_prog_gnu_ld,
-[AS_IF([`$CC $CFLAGS $CPPFLAGS $LDFLAGS --print-prog-name=ld 2>&1` -v 2>&1 | grep "GNU ld" > /dev/null], [
-  rb_cv_prog_gnu_ld=yes
-], [
-  rb_cv_prog_gnu_ld=no
-])])
-GNU_LD=$rb_cv_prog_gnu_ld
-AC_SUBST(GNU_LD)])
-
-eval `sed -n ['s/^@%:@define RUBY_API_VERSION_\([A-Z][A-Z_0-9]*\) \([0-9][0-9]*\)/API_\1=\2/p'] $srcdir/include/ruby/version.h`
-RUBY_PROGRAM_VERSION=`sed -n 's/^@%:@define RUBY_VERSION "\(.*\)"/\1/p' $srcdir/version.h`
-MAJOR=`echo $RUBY_PROGRAM_VERSION | cut -d. -f1`
-MINOR=`echo $RUBY_PROGRAM_VERSION | cut -d. -f2`
-TEENY=`echo $RUBY_PROGRAM_VERSION | cut -d. -f3`
-for v in MAJOR MINOR TEENY; do
-    AS_IF([eval "test \"\$$v\" = ''"], [
-	AC_MSG_ERROR(could not determine $v number from version.h)
-    ])
-done
-AS_IF([test "$MAJOR.$MINOR" != "$API_MAJOR.$API_MINOR"], [
-    AC_MSG_ERROR([API version $API_MAJOR.$API_MINOR differs from program version $MAJOR.$MINOR])
-])
-AC_SUBST(MAJOR)
-AC_SUBST(MINOR)
-AC_SUBST(TEENY)
-AC_SUBST(RUBY_PROGRAM_VERSION)
-AC_SUBST(RUBY_API_VERSION, '$(MAJOR).$(MINOR)')
-RUBY_PATCHLEVEL=`sed -n 's/^#define RUBY_PATCHLEVEL //p' $srcdir/version.h`
-AC_DEFINE(CANONICALIZATION_FOR_MATHN)
-dnl checks for alternative programs
-AC_CANONICAL_BUILD
-RUBY_RM_RECURSIVE
-AC_ARG_WITH(gcc,
-	AS_HELP_STRING([--without-gcc], [never use gcc]),
-	[
-	AS_CASE([$withval],
-	    [no],  [: ${CC=cc}],
-	    [yes], [: ${CC=gcc}],
-	           [CC=$withval])])
-dnl If the user switches compilers, we can't believe the cache
-AS_IF([test ! -z "$ac_cv_prog_CC" -a ! -z "$CC" -a "$CC" != "$ac_cv_prog_CC"], [
-  AC_MSG_ERROR(cached CC is different -- throw away $cache_file
-(it is also a good idea to do 'make clean' before compiling))
-])
-test -z "$CC" || ac_cv_prog_CC="$CC"
-
-AS_IF([test "$program_prefix" = NONE], [
-  program_prefix=
-])
-AS_IF([test "$prefix" -ef .], [
-  AC_MSG_ERROR(--prefix cannot be the current working directory.)
-])
-RUBY_BASE_NAME=`echo ruby | sed "$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}-${ruby_version}')
-
-AC_CANONICAL_TARGET
-test x"$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($1)
-	AS_CASE([" [$]{$1-} "],
-	[*" $2 "*], [], ['  '], [ $1="$2"], [ $1="[$]$1 $2"])])
-AC_DEFUN([RUBY_APPEND_OPTIONS],
-	[# RUBY_APPEND_OPTIONS($1)
-	for rb_opt in $2; do
-	AS_CASE([" [$]{$1-} "],
-	[*" [$]{rb_opt} "*], [], ['  '], [ $1="[$]{rb_opt}"], [ $1="[$]$1 [$]{rb_opt}"])
-	done])
-AC_DEFUN([RUBY_PREPEND_OPTION],
-	[# RUBY_PREPEND_OPTION($1)
-	AS_CASE([" [$]{$1-} "],
-	[*" $2 "*], [], ['  '], [ $1="$2"], [ $1="$2 [$]$1"])])
-AC_DEFUN([RUBY_PREPEND_OPTIONS],
-	[# 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}[$]$1"])
-
-AC_ARG_WITH(arch,
-	AS_HELP_STRING([--with-arch=ARCHS],
-		       [build an Apple/NeXT Multi Architecture Binary (MAB);
-                          ARCHS is a comma-delimited list of architectures for
-                          which to build; if this option is disabled or omitted
-			  entirely, then the package will be built only for the
-			  target platform]),
-       [target_archs="$withval"], [unset target_archs])
-
-AC_DEFUN([RUBY_DEFAULT_ARCH], [
-AC_MSG_CHECKING([arch option])
-AS_CASE([$1],
-	[*64],        [ARCH_FLAG=-m64],
-	[[i[3-6]86]], [ARCH_FLAG=-m32],
-	[AC_MSG_ERROR(unknown target architecture: $target_archs)]
-	)
-AC_MSG_RESULT([$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']`
-unset universal_binary universal_archnames
-AS_IF([test ${target_archs+set}], [
-    AC_MSG_CHECKING([target architectures])
-    target_archs=`echo $target_archs | tr , ' '`
-    # /usr/lib/arch_tool -archify_list $TARGET_ARCHS
-    for archs in $target_archs
-    do
-	AS_CASE([",$universal_binary,"],[*",$archs,"*], [],[
-	    cpu=`$SHELL "$ac_aux_dir/config.sub" "${archs}-${target_os}" 2>&1` || {
-	        AC_MSG_RESULT([failed])
-		AC_MSG_ERROR([$cpu])
-	    }
-	    cpu=`echo $cpu | sed 's/-.*-.*//'`
-	    universal_binary="${universal_binary+$universal_binary,}$cpu"
-	    universal_archnames="${universal_archnames} ${archs}=${cpu}"
-	    ARCH_FLAG="${ARCH_FLAG+$ARCH_FLAG }-arch $archs"
-	    ])
-    done
-    target_archs="$universal_binary"
-    unset universal_binary
-    AS_CASE(["$target_archs"],
-      [*,*], [universal_binary=yes],
-             [unset universal_archnames])
-    AC_MSG_RESULT([$target_archs])
-
-    target=`echo $target | sed "s/^$target_cpu-/-/"`
-    target_alias=`echo $target_alias | sed "s/^$target_cpu-/-/"`
-    AS_IF([test "${universal_binary-no}" = yes], [
-	AC_SUBST(try_header,try_compile)
-	target_cpu=universal
-	real_cross_compiling=$cross_compiling
-    ], [
-	AS_IF([test x"$target_cpu" != x"${target_archs}"], [
-	    echo 'int main(){return 0;}' > conftest.c
-	    AS_IF([$CC $CFLAGS $ARCH_FLAG -o conftest conftest.c > /dev/null 2>&1], [
-		rm -fr conftest.*
-	    ], [
-		RUBY_DEFAULT_ARCH("$target_archs")
-	    ])
-	])
-	target_cpu=${target_archs}
-    ])
-    AS_CASE(["$target"], [-*], [ target="$target_cpu${target}"])
-    AS_CASE(["$target_alias"], [-*], [ target_alias="$target_cpu${target_alias}"])
-], [
-    AS_IF([test x"$target_alias" = x], [
-	AS_CASE(["$target_os"],
-	  [darwin*], [
-	    AC_MSG_CHECKING([for real target cpu])
-	    target=`echo $target | sed "s/^$target_cpu-/-/"`
-	    target_cpu=`$CC -E - 2>/dev/null <<EOF |
-#ifdef __x86_64__
-"processor-name=x86_64"
-#endif
-#ifdef __i386__
-"processor-name=i386"
-#endif
-#ifdef __ppc__
-"processor-name=powerpc"
-#endif
-#ifdef __ppc64__
-"processor-name=powerpc64"
-#endif
-EOF
-	    sed -n 's/^"processor-name=\(.*\)"/\1/p'`
-	    target="$target_cpu${target}"
-	    AC_MSG_RESULT([$target_cpu])
-	    ])
-    ])
-    target_archs="$target_cpu"
-])
-AS_IF([test "${target_archs}" != "${rb_cv_target_archs-${target_archs}}"], [
-    AC_MSG_ERROR([target arch(s) has changed from ${rb_cv_target_archs-nothing} to ${target_archs}])
-], [
-    rb_cv_target_archs=${target_archs}
-])
-AS_IF([test "x${ARCH_FLAG}" != x], [
-    CFLAGS="${CFLAGS:+$CFLAGS }${ARCH_FLAG}"
-    LDFLAGS="${LDFLAGS:+$LDFLAGS }${ARCH_FLAG}"
-])
-# RUBY_UNIVERSAL_ARCH end
-])
-
-AC_ARG_ENABLE(load-relative,
-       AS_HELP_STRING([--enable-load-relative], [resolve load paths at run time]),
-       [load_relative=$enableval])
-
-AC_ARG_PROGRAM
-
-dnl Checks for programs.
-
-cflagspat=
-test -z "$optflags" ||
-    cflagspat="$cflagspat;s|"`eval echo '"'"${optflags}"'"' | sed 's/[[][|.*]]/\\&/g;s/^ */ /;s/ *$/ /'`'| |g'
-test -z "$debugflags" ||
-    cflagspat="$cflagspat;s|"`eval echo '"'"${debugflags}"'"' | sed 's/[[][|.*]]/\\&/g;s/^ */ /;s/ *$/ /'`'| |g'
-test -z "warnflags" ||
-    cflagspat="$cflagspat;s|"`eval echo '"'"${warnflags}"'"' | sed 's/[[][|.*]]/\\&/g;s/^ */ /;s/ *$/ /'`'| |g'
-AS_IF([test -z "${CFLAGS+set}"], [
-    cflags=`echo " $cflags " | sed "$cflagspat;s/^ *//;s/ *$//"`
-    orig_cflags="$cflags"
-    cflags="$cflags "'${optflags} ${debugflags} ${warnflags}'
-])
-AS_IF([test -z "${CXXFLAGS+set}"], [
-    cxxflags=`echo " $cxxflags " | sed "$cflagspat;s/^ *//;s/ *$//"`
-    orig_cxxflags="$cxxflags"
-    cxxflags="$cxxflags "'${optflags} ${debugflags} ${warnflags}'
-])
-
-AS_CASE(["$host_os:$build_os"],
-[darwin*:darwin*], [
-    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)
-    AS_IF([! $CC -E -xc - <<SRC >/dev/null], [
-	@%:@if defined __APPLE_CC__ && defined __clang_major__ && __clang_major__ < 3
-	@%:@error premature clang
-	@%:@endif
-SRC
-	AC_MSG_ERROR([clang version 3.0 or later is required])
-    ])
-])
-AS_IF([test x"${build}" != x"${host}"], [
-  AC_CHECK_TOOL(CC, gcc)
-])
-
-AC_PROG_CC
-
-dnl Select the appropriate C++ compiler in OS X
-AS_CASE(["$build_os"],
-  [darwin1*.*], [
-    AS_CASE(["x$CC"],
-      [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],     [: ${CXX=clang++}])
-  ])
-test -z "$CXX" || ac_cv_prog_CXX="$CXX"
-
-AC_PROG_CXX
-RUBY_MINGW32
-AC_PROG_GCC_TRADITIONAL
-AC_SUBST(GCC)
-AS_CASE(["$target_os"],
-[solaris*], [AC_PATH_TOOL([LD], [ld], [/usr/ccs/bin/ld], [/usr/ccs/bin:$PATH])],
-[AC_CHECK_TOOL([LD], [ld], [ld])])
-AC_SUBST(LD)
-AS_IF([test "$GCC" = yes], [
-    linker_flag=-Wl,
-    : ${optflags=-O3}
-    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 "$gcc_minor" || gcc_minor=0
-    AS_CASE(["x$CC"], [xicc], [
-      icc_version=`echo =__ICC | $CC -E -xc - | sed '/^=/!d;s///'`
-    ])
-    test -n "$icc_version" || icc_version=0
-    # RUBY_APPEND_OPTIONS(XCFLAGS, ["-include ruby/config.h" "-include ruby/missing.h"])
-], [
-    linker_flag=
-])
-
-RUBY_PROG_GNU_LD
-RUBY_CPPOUTFILE
-
-: ${OUTFLAG='-o '}
-: ${COUTFLAG=${OUTFLAG}}
-: ${CSRCFLAG=''}
-AC_SUBST(OUTFLAG)
-AC_SUBST(COUTFLAG)
-AC_SUBST(CSRCFLAG)
-
-cc_version=
-for option in --version -v -V -qversion; do
-    cc_version_message=`$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
-    break
-done
-AC_SUBST(CC_VERSION, $cc_version)
-AC_SUBST(CC_VERSION_MESSAGE, $cc_version_message)
-
-RUBY_UNIVERSAL_ARCH
-AS_IF([test "$target_cpu" != "$host_cpu" -a "$GCC" = yes -a "$cross_compiling" = no -a "$universal_binary" = no], [
-    RUBY_DEFAULT_ARCH("$target_cpu")
-])
-
-AS_CASE(["$target_cpu-$target_os"], [[i[3-6]86*]], [
-	 AC_CACHE_CHECK([for __sync_val_compare_and_swap], [rb_cv_gcc_compiler_cas], [
-			 AC_TRY_LINK([unsigned long atomic_var;],
-				     [
-				      __sync_val_compare_and_swap(&atomic_var, 0, 1);
-				      ],
-				      [rb_cv_gcc_compiler_cas=yes],
-				      [rb_cv_gcc_compiler_cas=no])])
-	 AS_IF([test "$rb_cv_gcc_compiler_cas" = no], [
-		 unset rb_cv_gcc_compiler_cas
-		 save_CFLAGS="$CFLAGS"
-		 CFLAGS="$CFLAGS -march=i486"
-		 AC_CACHE_CHECK([for __sync_val_compare_and_swap with -march=i486], [rb_cv_gcc_compiler_cas], [
-				 AC_TRY_LINK([unsigned long atomic_var;],
-					     [
-					      __sync_val_compare_and_swap(&atomic_var, 0, 1);
-					      ],
-					      [rb_cv_gcc_compiler_cas=yes
-					       ARCH_FLAG="-march=i486"],
-					      [rb_cv_gcc_compiler_cas=no])])
-		 CFLAGS="$save_CFLAGS"
-	 ])])
-
-AS_CASE(["$target_os"], [darwin*], [
-if libtool 2>&1 | grep no_warning_for_no_symbols > /dev/null; then
-  ac_cv_prog_ac_ct_RANLIB=:
-  ac_cv_prog_ac_ct_AR='libtool -static'
-  rb_cv_arflags='-no_warning_for_no_symbols -o'
-fi
-])
-AC_CHECK_TOOL(RANLIB, ranlib, :)
-AC_CHECK_TOOL(AR, ar)
-AS_IF([test -z "$AR"], [
-  AC_CHECK_PROGS(AR, aal, ar)
-])
-AC_CACHE_CHECK([for $AR flags], [rb_cv_arflags], [
-    AS_IF([$AR rcD conftest.a > /dev/null 2>&1 && rm conftest.a],
-	[rb_cv_arflags=rcD], [rb_cv_arflags=rcu])
-])
-AC_SUBST(ARFLAGS, ["$rb_cv_arflags "])
-
-AC_CHECK_TOOL(AS, as)
-ASFLAGS=$ASFLAGS
-AC_SUBST(ASFLAGS)
-
-AS_CASE(["$target_os"],[cygwin*|mingw*], [ac_cv_prog_ac_ct_OBJCOPY=":"])
-
-# BSD's ports and MacPorts prefix GNU binutils with 'g'
-AC_CHECK_TOOLS(OBJDUMP, [objdump gobjdump])
-AC_CHECK_TOOLS(OBJCOPY, [objcopy gobjcopy])
-
-AS_CASE(["$target_os"],
-[cygwin*|mingw*], [
-    AC_CHECK_TOOL(WINDRES, windres)
-    AC_CHECK_TOOL(DLLWRAP, dllwrap)
-    target=`echo $target | sed "s/^$target_cpu-/-/"`
-    target_alias=`echo $target_alias | sed "s/^$target_cpu-/-/"`
-    target_cpu=`echo $target_cpu | sed s/i.86/i386/`
-    AS_CASE(["$target"], [-*], [ target="$target_cpu${target}"])
-    AS_CASE(["$target_alias"], [-*], [ target_alias="$target_cpu${target_alias}"])
-    AS_CASE(["$target_os"],
-    [mingw*], [
-	test "$rb_cv_msvcrt" = "" && unset rb_cv_msvcrt
-	AC_CACHE_CHECK(for mingw32 runtime DLL, rb_cv_msvcrt, [
-	AC_TRY_LINK([@%:@include <stdio.h>],
-		    [FILE* volatile f = stdin; return 0;],
-		    [rb_cv_msvcrt=`$OBJDUMP -p conftest$ac_exeext |
-				   tr A-Z a-z |
-				   sed -n '/^[[ 	]]*dll name: \(msvc.*\)\.dll$/{s//\1/p;q;}'`],
-		    [rb_cv_msvcrt=msvcrt])
-	test "$rb_cv_msvcrt" = "" && rb_cv_msvcrt=msvcrt])
-	RT_VER=`echo "$rb_cv_msvcrt" | tr -cd [0-9]`
-	test "$RT_VER" = "" && RT_VER=60
-	AC_DEFINE_UNQUOTED(RUBY_MSVCRT_VERSION, $RT_VER)
-	sysconfdir=
-    ])
-    : ${enable_shared=yes}
-    ],
-[aix*],     [AC_CHECK_TOOL(NM, nm, /usr/ccs/bin/nm, /usr/ccs/bin:$PATH)],
-[hiuxmpp*], [AC_DEFINE(__HIUX_MPP__)])    # by TOYODA Eizi <toyoda@npd.kishou.go.jp>
-AC_CHECK_TOOL(NM, nm)
-
-AC_PROG_LN_S
-AC_PROG_MAKE_SET
-AC_PROG_INSTALL
-AC_PROG_MKDIR_P
-AS_IF([test "x$MKDIR_P" = "x -d"], [
-  AS_IF([test x"$as_mkdir_p" != xfalse], [
-    MKDIR_P='mkdir -p'
-    echo "use 'mkdir -p' as MKDIR_P"
-  ], [
-    AC_MSG_ERROR([mkdir -p is required])
-  ])
-])
-MAKEDIRS="$MKDIR_P"
-AC_SUBST(MAKEDIRS)
-
-AC_DEFUN([RUBY_DTRACE_AVAILABLE],
-[AC_CACHE_CHECK(whether dtrace USDT is available, rb_cv_dtrace_available,
-[
-    echo "provider conftest{ probe fire(); };" > conftest_provider.d
-    rb_cv_dtrace_available=no
-    AS_FOR(opt, rb_dtrace_opt, ["-xnolibs" ""], [dnl
-	AS_IF([$DTRACE opt -h -o conftest_provider.h -s conftest_provider.d >/dev/null 2>/dev/null],
-	    [], [continue])
-	AC_TRY_COMPILE([@%:@include "conftest_provider.h"], [CONFTEST_FIRE();],
-	    [], [continue])
-	# DTrace is available on the system
-	rb_cv_dtrace_available=yes${rb_dtrace_opt:+"(opt)"}
-	break
-    ])
-    rm -f conftest.[co] conftest_provider.[dho]
-])
-AS_CASE(["$rb_cv_dtrace_available"], ["yes("*")"],
-    [DTRACE_OPT=`expr "$rb_cv_dtrace_available" : "yes(\(.*\))"`])
-])
-
-AC_DEFUN([RUBY_DTRACE_POSTPROCESS],
-[AC_CACHE_CHECK(whether $DTRACE needs post processing, rb_cv_prog_dtrace_g,
-[
-  rb_cv_prog_dtrace_g=no
-  AS_IF([{
-    cat >conftest_provider.d <<_PROBES &&
-    provider conftest {
-      probe fire();
-    };
-_PROBES
-    $DTRACE ${DTRACE_OPT} -h -o conftest_provider.h -s conftest_provider.d >/dev/null 2>/dev/null &&
-    :
-  }], [
-    AC_TRY_COMPILE([@%:@include "conftest_provider.h"], [CONFTEST_FIRE();], [
-	AS_IF([{
-	    cp -p conftest.${ac_objext} conftest.${ac_objext}.save &&
-	    $DTRACE ${DTRACE_OPT} -G -s conftest_provider.d conftest.${ac_objext} 2>/dev/null &&
-	    :
-	}], [
-	    AS_IF([cmp -s conftest.o conftest.${ac_objext}.save], [
-		rb_cv_prog_dtrace_g=yes
-	    ], [
-		rb_cv_prog_dtrace_g=rebuild
-	    ])
-	])])
-  ])
-  rm -f conftest.[co] conftest_provider.[dho]
-])
-])
-
-AC_CHECK_PROG([DTRACE], [${ac_tool_prefix}dtrace], [${ac_tool_prefix}dtrace])
-AS_IF([test "$cross_compiling:$ac_cv_prog_DTRACE" = no: -a -n "$ac_tool_prefix"], [
-    AC_CHECK_PROG([DTRACE], [dtrace], [dtrace])
-])
-
-AC_CHECK_PROGS(DOT, dot)
-AC_CHECK_PROGS(DOXYGEN, doxygen)
-
-AC_CHECK_PROG(PKG_CONFIG, pkg-config, [pkg-config], [], [],
-    [`"$as_dir/$ac_word$ac_exec_ext" --print-errors --version > /dev/null 2>&1 || echo "$as_dir/$ac_word$ac_exec_ext"`])
-
-# checks for UNIX variants that set C preprocessor variables
-AC_USE_SYSTEM_EXTENSIONS
-
-AC_SUBST(RM, ['rm -f'])
-AC_SUBST(CP, ['cp'])
-RMDIRS='$(top_srcdir)/tool/rmdirs'
-RMDIR=rmdir
-mkdir "rmdirs_$$_test" "rmdirs_$$_test/a"
-rmdir --ignore-fail-on-non-empty "rmdirs_$$_test" 2>/dev/null &&
-RMDIR='rmdir --ignore-fail-on-non-empty'
-$RMDIR -p "rmdirs_$$_test/a" 2>/dev/null &&
-{ test -d "rmdirs_$$_test" || RMDIRS="$RMDIR -p"; }
-rmdir "rmdirs_$$_test/a" "rmdirs_$$_test" 2>/dev/null
-AC_SUBST(RMDIR)
-AC_SUBST(RMDIRS)
-AC_SUBST(RMALL, ['rm -fr'])
-
-AC_MSG_CHECKING([for cd using physical directory])
-rm -fr conf$$.dir
-mkdir conf$$.dir &&
-(cd conf$$.dir && mkdir src build && cd src &&
-$as_ln_s ../build . > /dev/null 2>&1 && cd build &&
-for chdir in 'cd -P' 'PWD= cd'; do
-    /bin/sh -c "$chdir ../src && echo '$chdir' > cdcmd" 2> /dev/null && break
-done)
-AS_IF([test -f conf$$.dir/src/cdcmd], [
-    read CHDIR < conf$$.dir/src/cdcmd 2> /dev/null
-], [
-    CHDIR=cd
-])
-rm -fr conf$$.dir
-AC_MSG_RESULT([$CHDIR])
-AC_SUBST(CHDIR)
-
-}
-{ # compiler section
-
-AC_DEFUN([RUBY_WERROR_FLAG], [dnl
-save_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS $rb_cv_warnflags"
-AS_IF([test "${ac_c_werror_flag+set}"], [
-  rb_c_werror_flag="$ac_c_werror_flag"
-], [
-  unset rb_c_werror_flag
-])
-ac_c_werror_flag=yes
-$1
-CFLAGS="$save_CFLAGS"
-save_CFLAGS=
-AS_IF([test "${rb_c_werror_flag+set}"], [
-  ac_c_werror_flag="$rb_c_werror_flag"
-], [
-  unset ac_c_werror_flag
-])])
-
-RUBY_WERROR_FLAG([
-    AC_MSG_CHECKING([whether CFLAGS is valid])
-    AC_TRY_COMPILE([], [],
-	[AC_MSG_RESULT(yes)],
-	[
-	AC_MSG_RESULT(no)
-	AC_MSG_ERROR([something wrong with CFLAGS="$CFLAGS"])
-	]
-    )
-    AC_MSG_CHECKING([whether LDFLAGS is valid])
-    {
-	mkdir tmp.$$.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"
-    AC_TRY_COMPILE([$4], [$5],
-	[$2
-	AC_MSG_RESULT(yes)],
-	[$3
-	AC_MSG_RESULT(no)])
-    ])
-])
-
-AC_DEFUN([RUBY_TRY_LDFLAGS], [
-    save_LDFLAGS="$LDFLAGS"
-    LDFLAGS="[$]LDFLAGS $1"
-    AC_MSG_CHECKING([whether $1 is accepted as LDFLAGS])
-    RUBY_WERROR_FLAG([
-    AC_TRY_LINK([$4], [$5],
-	[$2
-	AC_MSG_RESULT(yes)],
-	[$3
-	AC_MSG_RESULT(no)])
-    ])
-    LDFLAGS="$save_LDFLAGS"
-    save_LDFLAGS=
-])
-
-: ${DLDFLAGS="$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([$RUBY_PATCHLEVEL], [-*],
-	[RUBY_DEVEL=yes], [RUBY_DEVEL=no])
-particular_werror_flags=$RUBY_DEVEL
-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]]]),
-	[particular_werror_flags=$enableval])
-
-rb_cv_warnflags="$warnflags"
-AS_IF([test "$GCC:${warnflags+set}:no" = yes::no], [
-    AS_IF([test $gcc_major -ge 4], [
-	extra_warning=-Werror=extra-tokens
-    ], [
-	extra_warning=
-    ])
-    AS_IF([test $gcc_major -ge 5 -a $gcc_major -le 6], [
-	extra_warning="$extra_warning -Wno-maybe-uninitialized"
-    ])
-    # ICC doesn't support -Werror=
-    AS_IF([test $icc_version -gt 0], [
-	particular_werror_flags=no
-    ])
-    for wflag in -Wno-unused-parameter -Wno-parentheses -Wno-long-long \
-                 -diag-disable=175,188,2259 \
-		 -Wno-missing-field-initializers \
-		 -Wno-tautological-compare \
-		 -Wno-parentheses-equality \
-		 -Wno-constant-logical-operand \
-		 -Wno-self-assign \
-		 -Wunused-variable \
-		 -Werror=implicit-int \
-		 -Werror=pointer-arith \
-		 -Werror=write-strings \
-		 -Werror=declaration-after-statement \
-		 -Werror=shorten-64-to-32 \
-		 -Werror=implicit-function-declaration \
-		 -Werror=division-by-zero \
-		 -Werror=deprecated-declarations \
-		 -Werror=misleading-indentation \
-		 -Wno-packed-bitfield-compat \
-		 -Wsuggest-attribute=noreturn \
-		 -Wsuggest-attribute=format \
-		 -Wimplicit-fallthrough=0 \
-		 -Werror=duplicated-cond \
-		 -Werror=restrict \
-		 $extra_warning \
-		 ; do
-	AS_IF([test "$particular_werror_flags" != yes], [
-	    wflag=`echo x$wflag | sed 's/^x-Werror=/-W/;s/^x//'`
-	])
-	ok=no
-	RUBY_TRY_CFLAGS($wflag, [
-	    RUBY_APPEND_OPTIONS(warnflags, $wflag)
-	    ok=yes
-	])
-	AS_CASE([$ok:$wflag], [no:-Werror=*], [
-	    wflag=`echo x$wflag | sed 's/^x-Werror=/-W/'`
-	    RUBY_TRY_CFLAGS($wflag, [
-		RUBY_APPEND_OPTIONS(warnflags, $wflag)
-		particular_werror_flags=no
-	    ])
-	])
-    done
-    AS_CASE([" $warnflags "],[*" -Wno-missing-field-initializers "*], [wflag="-Wall -Wextra"],
-                             [wflag=-Wall])
-    RUBY_TRY_CFLAGS($wflag, [warnflags="$wflag${warnflags+ $warnflags}"])
-    # Disable warnflags while conftest. -Werror=* flags might make bad OS capability guess.
-    rb_cv_warnflags="$warnflags"
-    warnflags=
-])
-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_$n=no])])
-    AS_IF([eval test '"$rb_cv_'$n'"' = yes], [
-	AC_DEFINE_UNQUOTED([HAVE_]$m)
-    ])
-done
-
-AC_ARG_WITH(compress-debug-sections,
-	AS_HELP_STRING([--with-compress-debug-sections=type],
-	    [enable debug section compression]),
-	[compress_debug_sections=$withval], [compress_debug_sections=])
-
-AS_IF([test "$GCC" = yes], [
-    # -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(["$target_os"],
-    [mingw*], [
-	stack_protector=no
-    ])
-    AS_IF([test -z "${stack_protector+set}"], [
-	RUBY_TRY_CFLAGS(-fstack-protector, [stack_protector=yes], [stack_protector=no])
-	AS_IF([test "x$stack_protector" = xyes], [
-	    RUBY_TRY_LDFLAGS(-fstack-protector, [], [stack_protector=broken])
-	])
-    ])
-    AS_IF([test "x$stack_protector" = xyes], [
-	RUBY_APPEND_OPTION(XCFLAGS, -fstack-protector)
-	RUBY_APPEND_OPTION(XLDFLAGS, -fstack-protector)
-	RUBY_APPEND_OPTION(LDFLAGS, -fstack-protector)
-    ])
-
-    AS_CASE("${compress_debug_sections:-zlib}",
-    [none|no], [], [
-    RUBY_TRY_LDFLAGS(${linker_flag}--compress-debug-sections=${compress_debug_sections:-zlib},
-		     [compress_debug_sections=${compress_debug_sections:-zlib}],
-		     [compress_debug_sections=no])
-    ])
-    AS_IF([test "x$compress_debug_sections" != xno], [
-	RUBY_APPEND_OPTION(DLDFLAGS, ${linker_flag}--compress-debug-sections=$compress_debug_sections)
-    ])
-
-    AS_CASE(["$target_os"],[mingw*], [
-      # On  Windows  platforms,   system  provided  headers  are  VC++
-      # optimized.  That  is, C++  habits are often  contaminated into
-      # various  headers.  Most frequent  situation is  the use  of //
-      # comments.   We  bypass  ANSI   C  mode  for  them.   Otherwise
-      # extension libs cannot include those headers.
-
-      # Since math.h in some mingw64 wrongly delcares frexp and modf
-      # to be pure, the variables pointed by the second arguments are
-      # considered uninitialized unexpectedly.
-      AC_CACHE_CHECK([whether frexp and modf are broken],
-	rb_cv_mingw64_broken_frexp_modf,
-	[
-	  save_CFLAGS="$CFLAGS"
-	  AS_IF([test "$particular_werror_flags" = "yes"], [
-	    CFLAGS="$CFLAGS -Werror=uninitialized"
-	  ], [
-	    CFLAGS="$CFLAGS -Werror -Wuninitialized"
-	  ])
-	  AC_TRY_COMPILE([@%:@include <math.h>
-	    int foo(double x)
-	    {
-	      int exp;
-	      frexp(x, &exp);
-	      return exp;
-	    }], [if (foo(0.0)) return 1;],
-	    [rb_cv_mingw64_broken_frexp_modf=no],
-	    [rb_cv_mingw64_broken_frexp_modf=yes])
-	  CFLAGS="$save_CFLAGS"
-	])
-      AS_IF([test "$rb_cv_mingw64_broken_frexp_modf" = yes], [
-	AC_DEFINE(RUBY_MINGW64_BROKEN_FREXP_MODF)
-      ])
-    ],
-    [cygwin*|darwin*|netbsd*], [
-      # need lgamma_r(), finite()
-    ],
-    [
-      # ANSI (no XCFLAGS because this is C only)
-	for ansi_options in -std=gnu99; do
-	    RUBY_TRY_CFLAGS(${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])}
-])
-test $ac_cv_prog_cc_g = yes && : ${debugflags=-g}
-AS_IF([test "x$RUBY_DEVEL" = xyes], [RUBY_APPEND_OPTION(XCFLAGS, -DRUBY_DEVEL=1)])
-
-AS_IF([test "$GCC" = ""], [
-    AS_CASE(["$target_os"],[aix*],[warnflags="$warnflags -qinfo=por" rb_cv_warnflags="$rb_cv_warnflags -qinfo=por"])
-])
-AS_IF([test "$GCC" = yes], [
-    AS_IF([test "$gcc_major" -ge 4], [
-	RUBY_TRY_CFLAGS(-fvisibility=hidden, [visibility_option=yes], [visibility_option=no])
-    ])
-    AC_SUBST(WERRORFLAG, "-Werror")
-    AS_IF([test "$visibility_option" = yes], [
-	RUBY_APPEND_OPTION(XCFLAGS, -fvisibility=hidden)
-	AC_DEFINE(RUBY_SYMBOL_EXPORT_BEGIN, [_Pragma("GCC visibility push(default)")])
-	AC_DEFINE(RUBY_SYMBOL_EXPORT_END,   [_Pragma("GCC visibility pop")])
-    ], [
-	RUBY_TRY_LDFLAGS([-Wl,-unexported_symbol,_Init_*], [visibility_option=ld], [visibility_option=no])
-    ])
-    test "$visibility_option" = no || OBJCOPY=:
-])
-
-AS_IF([test "$GCC" = yes], [
-    # optflags
-
-    AS_CASE(["$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])
-	AS_IF([test "$static_libgcc" = yes], [
-	    RUBY_APPEND_OPTION(EXTLDFLAGS, -static-libgcc)
-	])
-    ])
-
-    # disable fast-math
-    for oflag in -fno-fast-math; do
-	RUBY_TRY_CFLAGS($oflag, [RUBY_APPEND_OPTION(CFLAGS, $oflag)])
-    done
-    for oflag in -fexcess-precision=standard -fp-model\ precise; do
-	RUBY_TRY_CFLAGS($oflag, [RUBY_APPEND_OPTION(XCFLAGS, $oflag)])
-    done
-])
-
-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 $ARCH_FLAG\""
-
-}
-{ # header and library section
-
-AC_ARG_WITH(winnt-ver,
-  AS_HELP_STRING([--with-winnt-ver=0xXXXX], [target Windows NT version (default to 0x0501)]),
-  [with_winnt_ver="$withval"], [with_winnt_ver="0x0501"])
-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(["$target_os"],
-[freebsd*], [
-  AC_CACHE_CHECK([whether pthread should be enabled by default],
-    rb_cv_enable_pthread_default,
-    [AC_TRY_CPP([
-#include <osreldate.h>
-#if __FreeBSD_version < 502102
-#error pthread should be disabled on this platform
-#endif
-      ],
-      rb_cv_enable_pthread_default=yes,
-      rb_cv_enable_pthread_default=no)])
-  enable_pthread=$rb_cv_enable_pthread_default
-  ],
-[mingw*], [
-  enable_pthread=no
-  ],
-[
-  enable_pthread=yes
-  ])
-
-dnl Checks for libraries.
-AS_CASE(["$target_os"],[*bsd*|dragonfly*],[],[ac_cv_func_daemon=no])
-
-POSTLINK=:
-AC_SUBST(POSTLINK)
-AS_CASE(["$target_os"],
-[nextstep*], [	],
-[openstep*], [	],
-[rhapsody*], [	],
-[darwin*], [	RUBY_PREPEND_OPTION(LIBS, -lobjc)
-		RUBY_APPEND_OPTIONS(CPPFLAGS, -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT)
-		AC_MSG_CHECKING(whether Mac OS X 10.5 or later)
-		AC_TRY_CPP([#include <AvailabilityMacros.h>
-		    #if MAC_OS_X_VERSION_MAX_ALLOWED <= 1040
-		    #error pre OS X 10.4
-		    [!<===== pre OS X 10.4 =====>]
-		    #endif
-		    ],
-		    [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
-		])
-		AS_IF([test $macosx_10_5 = yes], [
-		    ac_cv_func_getcontext=no
-		    ac_cv_func_setcontext=no
-		], [
-		    AC_DEFINE(BROKEN_SETREUID, 1)
-		    AC_DEFINE(BROKEN_SETREGID, 1)
-		])
-		incs=`$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
-		AS_IF([test $gcc_major -lt 4 -o \( $gcc_major -eq 4 -a $gcc_minor -lt 3 \)], [
-		    ac_cv_func___builtin_setjmp=no
-		])
-		AC_CACHE_CHECK(for broken crypt with 8bit chars, rb_cv_broken_crypt,
-		    [AC_TRY_RUN([
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-
-void
-broken_crypt(const char *salt, const char *buf1, const char *buf2)
-{
-#if 0
-    printf("%.2x%.2x: %s -> %s\n", (unsigned char)salt[0], (unsigned char)salt[1],
-	   buf1+2, buf2+2);
-#endif
-}
-
-int
-main()
-{
-    int i;
-    char salt[2], buf[256], *s;
-    for (i = 0; i < 128*128; i++) {
-	salt[0] = 0x80 | (i & 0x7f);
-	salt[1] = 0x80 | (i >> 7);
-	strcpy(buf, crypt("", salt));
-	if (strcmp(buf, s = crypt("", salt))) {
-	    broken_crypt(salt, buf, s);
-	    return 1;
-	}
-    }
-    salt[0] = salt[1] = ' ';
-    strcpy(buf, crypt("", salt));
-    salt[0] = salt[1] = 0x80 | ' ';
-    if (strcmp(buf, s = crypt("", salt))) {
-	broken_crypt(salt, buf, s);
-	return 1;
-    }
-    return 0;
-}
-],
-		    rb_cv_broken_crypt=no,
-		    rb_cv_broken_crypt=yes,
-		    rb_cv_broken_crypt=yes)])
-		AS_IF([test "$rb_cv_broken_crypt" = yes], [
-		   AC_DEFINE(BROKEN_CRYPT, 1)
-		])
-		POSTLINK=""
-		AC_CHECK_PROGS(codesign, codesign)
-		AC_CHECK_PROGS(dsymutil, dsymutil)
-		AS_IF([test -n "$codesign"], [
-		    POSTLINK="{ test -z '\$(RUBY_CODESIGN)' || $codesign -s '\$(RUBY_CODESIGN)' -f \$@; }${POSTLINK:+; $POSTLINK}"
-		])
-		AS_IF([test -n "$dsymutil"], [
-		    POSTLINK="$dsymutil \$@${POSTLINK:+; $POSTLINK}"
-		])
-		AS_IF([test -n "${POSTLINK}"], [
-		    LINK_SO="$LINK_SO
-\$(POSTLINK)"
-		])
-		AC_CHECK_HEADERS(crt_externs.h, [], [], [
-		    #include <crt_externs.h>
-		])
-		],
-[hpux*], [	LIBS="-lm $LIBS"
-		ac_cv_c_inline=no],
-[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)
-		AS_IF([test $given_xopen_source = no], [
-		  # 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, ${ansi_options})
-		  ])
-		  AC_MSG_CHECKING(appropriate _XOPEN_SOURCE value to define)
-		  define_xopen_source=""
-		  for tmp_xpg in 7 6 5; do
-		    AS_IF([test x"$define_xopen_source" != x], [
-		        break
-		    ])
-		    # 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=${tmp_xpg}00], [])
-			], [])
-		  done
-		  AS_IF([test x"$define_xopen_source" = x], [
-		    define_xopen_source=no
-		  ])
-		  AC_MSG_RESULT($define_xopen_source)
-		  AS_IF([test x"$define_xopen_source" != xno], [
-		    RUBY_APPEND_OPTIONS(CPPFLAGS, -D_XOPEN_SOURCE=$define_xopen_source)
-		  ])
-		])
-		],
-[haiku*], [
-		LIBS="$LIBS" # m lib is include in root
-		],
-[cygwin*], [	ac_cv_header_langinfo_h=yes
-		RUBY_APPEND_OPTIONS(CPPFLAGS, -D_XOPEN_SOURCE -D_GNU_SOURCE)
-		AC_CHECK_FUNCS(cygwin_conv_path)
-		AC_LIBOBJ([langinfo])
-		],
-[mingw*], [	LIBS="-lshell32 -lws2_32 -liphlpapi -limagehlp -lshlwapi $LIBS"
-		ac_cv_header_a_out_h=no
-		ac_cv_header_pwd_h=no
-		ac_cv_header_utime_h=no
-		ac_cv_header_sys_ioctl_h=no
-		ac_cv_header_sys_param_h=no
-		ac_cv_header_sys_resource_h=no
-		ac_cv_header_sys_select_h=no
-		ac_cv_header_sys_time_h=no
-		ac_cv_header_sys_times_h=no
-		ac_cv_header_sys_socket_h=no
-		ac_cv_func_lstat=yes
-		ac_cv_func_times=yes
-		ac_cv_func_waitpid=yes
-		ac_cv_func_fsync=yes
-		ac_cv_func_seekdir=yes
-		ac_cv_func_telldir=yes
-		ac_cv_func_isinf=yes
-		ac_cv_func_isnan=yes
-		ac_cv_func_finite=yes
-		ac_cv_func_lchown=yes
-		ac_cv_func_link=yes
-		ac_cv_func_readlink=yes
-		ac_cv_func_symlink=yes
-		ac_cv_lib_crypt_crypt=no
-		ac_cv_func_getpgrp_void=no
-		ac_cv_func_memcmp_working=yes
-		ac_cv_lib_dl_dlopen=no
-		rb_cv_binary_elf=no
-		rb_cv_negative_time_t=no
-		ac_cv_func_fcntl=yes
-		ac_cv_func_flock=yes
-		ac_cv_func_gmtime_r=yes
-		rb_cv_large_fd_select=yes
-		ac_cv_type_struct_timeval=yes
-                ac_cv_func_clock_gettime=yes
-                ac_cv_func_clock_getres=yes
-		ac_cv_func_malloc_usable_size=no
-		AS_IF([test "$target_cpu" = x64], [
-		    ac_cv_func___builtin_setjmp=no
-		    ac_cv_func_round=no
-		])
-		ac_cv_func_tgamma=no
-		rb_cv_negative_time_t=yes
-		AC_CHECK_TYPE([NET_LUID], [], [],
-			      [@%:@include <winsock2.h>
-			      @%:@include <iphlpapi.h>])
-		AS_IF([test x"$ac_cv_type_NET_LUID" = xyes], [
-		    AC_DEFINE(HAVE_TYPE_NET_LUID, 1)
-		])
-		AC_CHECK_FUNCS(_gmtime64_s)
-		AC_CHECK_FUNCS(_wfreopen_s)
-		AC_LIBOBJ([langinfo])
-		],
-[bsdi*], [	LIBS="-lm $LIBS"
-		AC_DEFINE(BROKEN_SETREUID, 1)
-		AC_DEFINE(BROKEN_SETREGID, 1)
-                ac_cv_sizeof_rlim_t=8],
-[freebsd*], [	LIBS="-lm $LIBS"
-		ac_cv_func_getpeername=no
-		ac_cv_func_getsockname=no
-		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
-		],
-[aix*],[	LIBS="-lm $LIBS"
-		ac_cv_func_round=no
-		],
-[	LIBS="-lm $LIBS"])
-
-AC_CHECK_LIB(crypt, crypt)      # glibc (GNU/Linux, GNU/Hurd, GNU/kFreeBSD)
-AC_CHECK_LIB(dl, dlopen)	# Dynamic linking for SunOS/Solaris and SYSV
-AC_CHECK_LIB(dld, shl_load)	# Dynamic linking for HP-UX
-AC_CHECK_LIB(socket, shutdown)  # SunOS/Solaris
-
-dnl Checks for header files.
-AC_HEADER_DIRENT
-dnl AC_HEADER_STDC has been checked in AC_USE_SYSTEM_EXTENSIONS
-AC_HEADER_STDBOOL
-AC_HEADER_SYS_WAIT
-
-AC_CHECK_HEADERS(a.out.h)
-AC_CHECK_HEADERS(atomic.h)
-AC_CHECK_HEADERS(direct.h)
-AC_CHECK_HEADERS(grp.h)
-AC_CHECK_HEADERS(fcntl.h)
-AC_CHECK_HEADERS(float.h)
-AC_CHECK_HEADERS(ieeefp.h)
-AC_CHECK_HEADERS(intrinsics.h)
-AC_CHECK_HEADERS(langinfo.h)
-AC_CHECK_HEADERS(limits.h)
-AC_CHECK_HEADERS(locale.h)
-AC_CHECK_HEADERS(malloc.h)
-AC_CHECK_HEADERS(malloc/malloc.h)
-AC_CHECK_HEADERS(malloc_np.h)
-AC_CHECK_HEADERS(net/socket.h)
-AC_CHECK_HEADERS(process.h)
-AC_CHECK_HEADERS(pwd.h)
-AC_CHECK_HEADERS(setjmpex.h)
-AC_CHECK_HEADERS(sys/attr.h)
-AC_CHECK_HEADERS(sys/fcntl.h)
-AC_CHECK_HEADERS(sys/file.h)
-AC_CHECK_HEADERS(sys/id.h)
-AC_CHECK_HEADERS(sys/ioctl.h)
-AC_CHECK_HEADERS(sys/mkdev.h)
-AC_CHECK_HEADERS(sys/param.h)
-AC_CHECK_HEADERS(sys/prctl.h)
-AC_CHECK_HEADERS(sys/resource.h)
-AC_CHECK_HEADERS(sys/select.h)
-AC_CHECK_HEADERS(sys/sendfile.h)
-AC_CHECK_HEADERS(sys/socket.h)
-AC_CHECK_HEADERS(sys/syscall.h)
-AC_CHECK_HEADERS(sys/sysmacros.h)
-AC_CHECK_HEADERS(sys/time.h)
-AC_CHECK_HEADERS(sys/times.h)
-AC_CHECK_HEADERS(sys/uio.h)
-AC_CHECK_HEADERS(sys/utime.h)
-AC_CHECK_HEADERS(syscall.h)
-AC_CHECK_HEADERS(time.h)
-AC_CHECK_HEADERS(ucontext.h)
-AC_CHECK_HEADERS(utime.h)
-
-AC_ARG_WITH([gmp],
-  [AS_HELP_STRING([--without-gmp],
-    [disable GNU GMP to accelerate Bignum operations])],
-  [],
-  [with_gmp=yes])
-AS_IF([test "x$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_DEFINE(HAVE_MALLOC_CONF)
-      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.
-AS_IF([test x"$enable_largefile" != xno], [
-  AS_CASE(["$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])])
-  ])
-])
-mv confdefs.h largefile.h
-mv confdefs1.h confdefs.h
-cat largefile.h >> confdefs.h
-
-AS_CASE(["$target_os"],
-    [mingw*], [ac_cv_type_off_t=yes;ac_cv_sizeof_off_t=8],
-    [aix*], [
-    AS_CASE(["$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:$ac_cv_c_volatile:",
-    [*:no:*], [AC_MSG_ERROR(ANSI C-conforming const and volatile are mandatory)])
-
-AC_CHECK_TYPES([long long, off_t])
-
-AC_CACHE_CHECK([char bit], [rb_cv_char_bit],
-    [test "$universal_binary" = yes && cross_compiling=yes
-    AC_COMPUTE_INT([rb_cv_char_bit], [CHAR_BIT],
-	[AC_INCLUDES_DEFAULT([@%:@include <limits.h>])], [rb_cv_char_bit=8])
-    test "$universal_binary" = yes && cross_compiling=$real_cross_compiling])
-
-dnl RUBY_CHECK_SIZEOF [typename], [maybe same size types], [macros], [include]
-AC_DEFUN([RUBY_CHECK_SIZEOF],
-[dnl
-AS_VAR_PUSHDEF([rbcv_var], [rbcv_sizeof_var])dnl
-AS_VAR_PUSHDEF([cond], [rbcv_sizeof_cond])dnl
-AS_VAR_PUSHDEF([t], [rbcv_sizeof_type])dnl
-AS_VAR_PUSHDEF([s], [rbcv_sizeof_size])dnl
-]
-[m4_bmatch([$1], [\.], [], [if test "$universal_binary" = yes; then])
-AC_CACHE_CHECK([size of $1], [AS_TR_SH([ac_cv_sizeof_$1])], [
-    unset AS_TR_SH(ac_cv_sizeof_$1)
-    rbcv_var="
-typedef m4_bpatsubst([$1], [\..*]) ac__type_sizeof_;
-static ac__type_sizeof_ *rbcv_ptr;
-@%:@define AS_TR_CPP(SIZEOF_$1) sizeof((*rbcv_ptr)[]m4_bmatch([$1], [\.], .m4_bpatsubst([$1], [^[^.]*\.])))
-"
-    m4_ifval([$2], [test -z "${AS_TR_SH(ac_cv_sizeof_$1)+set}" && {
-    for t in $2; do
-	AC_COMPILE_IFELSE(
-	    [AC_LANG_BOOL_COMPILE_TRY(AC_INCLUDES_DEFAULT([$4]
-		[$rbcv_var]),
-		[AS_TR_CPP(SIZEOF_$1) == sizeof($t)])], [
-		AS_TR_SH(ac_cv_sizeof_$1)=AS_TR_CPP([SIZEOF_]$t)
-		break])
-    done
-    }], [
-	AC_COMPUTE_INT([AS_TR_SH(ac_cv_sizeof_$1)], [AS_TR_CPP(SIZEOF_$1)],
-	    [AC_INCLUDES_DEFAULT([$4])
-$rbcv_var],
-	    [AS_TR_SH(ac_cv_sizeof_$1)=])
-    ])
-    unset cond
-    m4_ifval([$3], [test -z "${AS_TR_SH(ac_cv_sizeof_$1)+set}" && {
-    for s in 32 64 128; do
-	for t in $3; do
-	    cond="${cond}
-@%:@${cond+el}if defined(__${t}${s}__) || defined(__${t}${s}) || defined(_${t}${s}) || defined(${t}${s})"
-	    hdr="AC_INCLUDES_DEFAULT([$4
-@%:@if defined(__${t}${s}__) || defined(__${t}${s}) || defined(_${t}${s}) || defined(${t}${s})
-@%:@ define AS_TR_CPP(HAVE_$1) 1
-@%:@else
-@%:@ define AS_TR_CPP(HAVE_$1) 0
-@%:@endif])"
-	    AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$hdr], [!AS_TR_CPP(HAVE_$1)])], [continue])
-	    AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$hdr]
-				[$rbcv_var],
-				[AS_TR_CPP(HAVE_$1) == (AS_TR_CPP(SIZEOF_$1) == ($s / $rb_cv_char_bit))])],
-		[AS_TR_SH(ac_cv_sizeof_$1)="${AS_TR_SH(ac_cv_sizeof_$1)+${AS_TR_SH(ac_cv_sizeof_$1)-} }${t}${s}"; continue])
-	    AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$hdr]
-[
-@%:@if AS_TR_CPP(HAVE_$1)
-$rbcv_var
-@%:@else
-@%:@define AS_TR_CPP(SIZEOF_$1) 0
-@%:@endif
-],
-		    [AS_TR_CPP(HAVE_$1) == (AS_TR_CPP(SIZEOF_$1) == (m4_bmatch([$2], [^[0-9][0-9]*$], [$2], [($s / $rb_cv_char_bit)])))])],
-		[AS_TR_SH(ac_cv_sizeof_$1)="${AS_TR_SH(ac_cv_sizeof_$1)+${AS_TR_SH(ac_cv_sizeof_$1)-} }${t}${s}m4_bmatch([$2], [^[0-9][0-9]*$], [:$2])"])
-	done
-    done
-    }])
-    test "${AS_TR_SH(ac_cv_sizeof_$1)@%:@@<:@1-9@:>@}" = "${AS_TR_SH(ac_cv_sizeof_$1)}" &&
-    m4_ifval([$2][$3],
-	[test "${AS_TR_SH(ac_cv_sizeof_$1)@%:@SIZEOF_}" = "${AS_TR_SH(ac_cv_sizeof_$1)}" && ]){
-    test "$universal_binary" = yes && cross_compiling=yes
-    AC_COMPUTE_INT([t], AS_TR_CPP(SIZEOF_$1), [AC_INCLUDES_DEFAULT([$4])]
-[${cond+$cond
-@%:@else}
-$rbcv_var
-${cond+@%:@endif}
-@%:@ifndef AS_TR_CPP(SIZEOF_$1)
-@%:@define AS_TR_CPP(SIZEOF_$1) 0
-@%:@endif], [t=0])
-    test "$universal_binary" = yes && cross_compiling=$real_cross_compiling
-    AS_IF([test ${t-0} != 0], [
-	AS_TR_SH(ac_cv_sizeof_$1)="${AS_TR_SH(ac_cv_sizeof_$1)+${AS_TR_SH(ac_cv_sizeof_$1)-} }${t}"
-    ])
-    }
-    : ${AS_TR_SH(ac_cv_sizeof_$1)=0}
-])
-{
-    unset cond
-    for t in ${AS_TR_SH(ac_cv_sizeof_$1)-}; do
-	AS_CASE(["$t"],
-	[[[0-9]*|SIZEOF_*]], [
-	    ${cond+echo "@%:@else"}
-	    echo "[@%:@define ]AS_TR_CPP(SIZEOF_$1) $t"
-	    break
-	    ],
-	[
-	    s=`expr $t : ['.*[^0-9]\([0-9][0-9]*\)$']`
-	    AS_CASE([$t], [*:*], [t="${t%:*}"], [s=`expr $s / $rb_cv_char_bit`])
-	    echo "@%:@${cond+el}if defined(__${t}__) || defined(__${t}) || defined(_${t}) || defined($t)"
-	    echo "@%:@define AS_TR_CPP(SIZEOF_$1) $s"
-	    cond=1
-	    ])
-    done
-    ${cond+echo "@%:@endif"}
-} >> confdefs.h
-m4_bmatch([$1], [\.], [], [else
-AC_CHECK_SIZEOF([$1], 0, [$4])
-fi])
-AS_VAR_POPDEF([rbcv_var])dnl
-AS_VAR_POPDEF([cond])dnl
-AS_VAR_POPDEF([t])dnl
-AS_VAR_POPDEF([s])dnl
-])
-
-RUBY_CHECK_SIZEOF(int, [], [ILP])
-RUBY_CHECK_SIZEOF(short)
-RUBY_CHECK_SIZEOF(long, [int], [ILP LP])
-RUBY_CHECK_SIZEOF(long long)
-RUBY_CHECK_SIZEOF(__int64, [8], [ILP LP])
-RUBY_CHECK_SIZEOF(__int128, [16], [ILP LP])
-RUBY_CHECK_SIZEOF(off_t)
-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])
-AS_IF([test "$rb_cv_packed_struct" != no], [
-    AC_DEFINE_UNQUOTED([PACKED_STRUCT(x)], [$rb_cv_packed_struct])
-    RUBY_TRY_CFLAGS(-Wno-address-of-packed-member, [AC_DEFINE(USE_UNALIGNED_MEMBER_ACCESS)])
-], [
-    AC_DEFINE_UNQUOTED([PACKED_STRUCT(x)], x)
-])
-
-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(RUBY_APPEND_OPTIONS(CFLAGS, $rb_cv_wsuppress_flags)
-    for pri in $2; do
-        AC_TRY_COMPILE(
-            [@%:@include <stdio.h>
-	    @%:@include <stddef.h>
-            @%:@ifdef __GNUC__
-            @%:@define PRINTF_ARGS(decl, string_index, first_to_check) \
-              decl __attribute__((format(printf, string_index, first_to_check)))
-            @%:@else
-            @%:@define PRINTF_ARGS(decl, string_index, first_to_check) decl
-            @%:@endif
-	    PRINTF_ARGS(void test_sprintf(const char*, ...), 1, 2);],
-            [printf("%]${pri}[d", (]$1[)42);
-            test_sprintf("%]${pri}[d", (]$1[)42);],
-            [rb_cv_pri_prefix_]AS_TR_SH($1)[=[$pri]; break])
-    done)])
-AS_IF([test "[$rb_cv_pri_prefix_]AS_TR_SH($1)" != NONE], [
-    AC_DEFINE_UNQUOTED([PRI_]m4_ifval($3,$3,AS_TR_CPP(m4_bpatsubst([$1],[_t$])))[_PREFIX],
-        "[$rb_cv_pri_prefix_]AS_TR_SH($1)")
-])
-])
-
-AS_IF([test "x$ac_cv_type_long_long" = xyes], [
-    RUBY_CHECK_PRINTF_PREFIX(long long, ll I64, LL)
-], [test "x$ac_cv_type___int64" = xyes], [
-    RUBY_CHECK_PRINTF_PREFIX(__int64, ll I64, LL)
-])
-
-dnl RUBY_CHECK_SIGNEDNESS [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],
-		  [n="patsubst([$1],["],[\\"])"],
-		  [n="patsubst([$2],["],[\\"])"],
-		  [$4])
-    AC_CACHE_CHECK([for convertible type of [$1]], rb_cv_[$1]_convertible, [
-	u= t=
-	AS_CASE(["$n "],
-	  [*" signed "*], [ ],
-	  [*" unsigned "*], [
-	    u=U],
-	  [RUBY_CHECK_SIGNEDNESS($n, [], [u=U], [$4])])
-	AS_IF([test x"$t" = x], [
-	    for t in "long long" long int short; do
-		test -n "$u" && t="unsigned $t"
-		AC_COMPILE_IFELSE(
-		    [AC_LANG_BOOL_COMPILE_TRY([AC_INCLUDES_DEFAULT([$4])]
-			[typedef $n rbcv_conftest_target_type;
-			typedef $t rbcv_conftest_replace_type;
-			extern rbcv_conftest_target_type rbcv_conftest_var;
-			extern rbcv_conftest_replace_type rbcv_conftest_var;
-			extern rbcv_conftest_target_type rbcv_conftest_func(void);
-			extern rbcv_conftest_replace_type rbcv_conftest_func(void);
-			], [sizeof(rbcv_conftest_target_type) == sizeof(rbcv_conftest_replace_type)])],
-		    [n="$t"; break])
-	    done
-	])
-	AS_CASE([" $n "],
-	  [*" long long "*], [
-	    t=LL],
-	  [*" long "*], [
-	    t=LONG],
-	  [
-	    t=INT])
-	rb_cv_[$1]_convertible=${u}${t}])
-    AS_IF([test "${AS_TR_SH(ac_cv_type_[$1])}" = "yes"], [
-	n="$1"
-    ], [
-	AS_CASE(["${rb_cv_[$1]_convertible}"],
-		[*LL], [n="long long"],
-		[*LONG], [n="long"],
-		[n="int"])
-	AS_CASE(["${rb_cv_[$1]_convertible}"],
-		[U*], [n="unsigned $n"])
-    ])
-    AS_CASE("${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,
-	[PRI_`echo ${rb_cv_[$1]_convertible} | sed ['s/^U//']`_PREFIX])
-])
-RUBY_REPLACE_TYPE(pid_t, int, PIDT)
-RUBY_REPLACE_TYPE(uid_t, int, UIDT)
-RUBY_REPLACE_TYPE(gid_t, int, GIDT)
-RUBY_REPLACE_TYPE(time_t, [], TIMET, [@%:@include <time.h>])
-RUBY_REPLACE_TYPE(dev_t, [int long "long long"], DEVT)
-RUBY_REPLACE_TYPE(mode_t, ["unsigned int" long], MODET, [@%:@include <sys/stat.h>])
-RUBY_REPLACE_TYPE(rlim_t, [int long "long long"], RLIM, [
-@%:@ifdef HAVE_SYS_TYPES_H
-@%:@include <sys/types.h>
-@%:@endif
-@%:@ifdef HAVE_SYS_TYPES_H
-@%:@include <sys/time.h>
-@%:@endif
-@%:@include <sys/resource.h>
-])
-RUBY_REPLACE_TYPE(off_t, [], OFFT)
-RUBY_REPLACE_TYPE(clockid_t, [], CLOCKID)
-
-AC_CACHE_CHECK(for prototypes, rb_cv_have_prototypes,
-  [AC_TRY_COMPILE([int foo(int x) { return 0; }], [return foo(10);],
-	rb_cv_have_prototypes=yes,
-	rb_cv_have_prototypes=no)])
-AS_IF([test "$rb_cv_have_prototypes" = yes], [
-  AC_DEFINE(HAVE_PROTOTYPES)
-])
-
-AC_CACHE_CHECK(token paste string, rb_cv_tokenpaste,
-  [AC_TRY_COMPILE([@%:@define paste(a,b) a@%:@@%:@b],
-		  [int xy = 1; return paste(x,y);],
-		  rb_cv_tokenpaste=ansi,
-		  rb_cv_tokenpaste=knr)])
-AS_IF([test "$rb_cv_tokenpaste" = ansi], [
-  AC_DEFINE(TOKEN_PASTE(x,y),[x@%:@@%:@y])
-], [
-  AC_DEFINE(TOKEN_PASTE(x,y),[x/**/y])
-])
-
-AC_CACHE_CHECK(stringization, rb_cv_stringization, [
-  rb_cv_stringization=no
-  for string in "#expr" '"expr"'; do
-    AC_COMPILE_IFELSE([
-      AC_LANG_BOOL_COMPILE_TRY([
-#define STRINGIZE0(expr) $string
-#define STRINGIZE(expr) STRINGIZE0(expr)
-#undef real_test_for_stringization
-#define test_for_stringization -.real_test_for_stringization.-
-const char stringized[[]] = STRINGIZE(test_for_stringization);
-], [sizeof(stringized) == 32])],
-      [rb_cv_stringization="$string"; break],
-      [rb_cv_stringization=no])
-  done]
-)
-AC_DEFINE(STRINGIZE(expr),STRINGIZE0(expr))
-AS_IF([test x"$rb_cv_stringization" != xno -a "$rb_cv_stringization" != "#expr"], [
-  AC_DEFINE_UNQUOTED(STRINGIZE0(expr),$rb_cv_stringization)
-  AC_DEFINE(OLD_FASHIONED_STRINGIZATION,1)
-])
-
-AC_CACHE_CHECK([string literal concatenation],
-  rb_cv_string_literal_concatenation, [
-  AC_COMPILE_IFELSE([
-    AC_LANG_BOOL_COMPILE_TRY([
-const char concatenated_literal[[]] = "literals" "to"
-  "be" "concatenated.";
-], [sizeof(concatenated_literal) == 26])],
-    [rb_cv_string_literal_concatenation=yes],
-    [rb_cv_string_literal_concatenation=no])]
-)
-AS_IF([test "$rb_cv_string_literal_concatenation" = no], [
-  AC_DEFINE(NO_STRING_LITERAL_CONCATENATION,1)
-])
-
-AC_CACHE_CHECK(for variable length prototypes and stdarg.h, rb_cv_stdarg,
-  [AC_TRY_COMPILE([
-#include <stdarg.h>
-int foo(int x, ...) {
-	va_list va;
-	va_start(va, x);
-	va_arg(va, int);
-	va_arg(va, char *);
-	va_arg(va, double);
-	return 0;
-}
-], [return foo(10, "", 3.14);],
-	rb_cv_stdarg=yes,
-	rb_cv_stdarg=no)])
-AS_IF([test "$rb_cv_stdarg" = yes], [
-  AC_DEFINE(HAVE_STDARG_PROTOTYPES)
-])
-
-AC_CACHE_CHECK(for variable length macro, rb_cv_va_args_macro,
-  [AC_TRY_COMPILE([
-int foo(int x, ...);
-@%:@define FOO(a, ...) foo(a, @%:@@%:@__VA_ARGS__)
-], [FOO(1);FOO(1,2);FOO(1,2,3);],
-  rb_cv_va_args_macro=yes,
-  rb_cv_va_args_macro=no)])
-AS_IF([test "$rb_cv_va_args_macro" = yes], [
-  AC_DEFINE(HAVE_VA_ARGS_MACRO)
-])
-
-AC_DEFUN([RUBY_DEFINE_IF], [dnl
-    m4_ifval([$1], [AS_LITERAL_IF([$1], [], [test "X$1" = X || ])cat <<EOH >> confdefs.h
-@%:@if $1
-EOH
-])dnl
-AC_DEFINE_UNQUOTED($2, $3)dnl
-    m4_ifval([$1], [AS_LITERAL_IF([$1], [], [test "X$1" = X || ])cat <<EOH >> confdefs.h
-@%:@endif /* $1 */
-EOH
-])dnl
-])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], 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_]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 m4_ifval([$2],[m4_bpatsubst([$2], [(.*)], [])],[$1]) [$5] attribute, rbcv, dnl
-[rbcv=x
-RUBY_WERROR_FLAG([
-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[](attrib_params)[ $mac]
-m4_ifval([$4],${rbcv_cond+[@%:@else]}
-${rbcv_cond+[@%:@define ]attrib[](attrib_params)[ x]}
-${rbcv_cond+[@%:@endif]})
-$6
-@%:@define mesg ("")
-    attrib[](attrib_params)[;], [],
-    [rbcv="$mac"; break])
-done
-])])
-AS_IF([test "$rbcv" != x], [
-    RUBY_DEFINE_IF(m4_ifval([$4],[${rbcv_cond}]), attrib[](attrib_params)[], $rbcv)
-])
-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 int conftest_attribute_check(void)]
-    )
-])
-
-dnl RUBY_TYPE_ATTRIBUTE(attrib, macroname, cachevar, condition)
-AC_DEFUN([RUBY_TYPE_ATTRIBUTE], [dnl
-    RUBY_DECL_ATTRIBUTE([$1], [$2], [$3], [$4],
-	[type], [
-@%:@define x struct conftest_attribute_check {int i;}
-])
-])
-
-RUBY_FUNC_ATTRIBUTE(__const__, CONSTFUNC)
-RUBY_FUNC_ATTRIBUTE(__pure__, PUREFUNC)
-RUBY_FUNC_ATTRIBUTE(__noreturn__, NORETURN)
-RUBY_FUNC_ATTRIBUTE(__deprecated__, DEPRECATED)
-RUBY_FUNC_ATTRIBUTE(__deprecated__("by "@%:@n), DEPRECATED_BY(n,x), rb_cv_func_deprecated_by)
-RUBY_TYPE_ATTRIBUTE(__deprecated__ mesg, DEPRECATED_TYPE(mesg,x), rb_cv_type_deprecated)
-RUBY_FUNC_ATTRIBUTE(__noinline__, NOINLINE)
-RUBY_FUNC_ATTRIBUTE(__always_inline__, ALWAYS_INLINE)
-RUBY_FUNC_ATTRIBUTE(__warn_unused_result__, WARN_UNUSED_RESULT)
-RUBY_FUNC_ATTRIBUTE(__unused__, MAYBE_UNUSED)
-RUBY_FUNC_ATTRIBUTE(__error__ mesg, ERRORFUNC(mesg,x), rb_cv_func___error__)
-RUBY_FUNC_ATTRIBUTE(__warning__ mesg, WARNINGFUNC(mesg,x), rb_cv_func___warning__)
-RUBY_FUNC_ATTRIBUTE(__weak__, WEAK, rb_cv_func_weak)
-AS_IF([test "$rb_cv_func_weak" != x], [
-   AC_DEFINE(HAVE_FUNC_WEAK)
-])
-
-if_i386=${universal_binary+[defined __i386__]}
-RUBY_FUNC_ATTRIBUTE(__stdcall__,  FUNC_STDCALL,  rb_cv_func_stdcall,  ${if_i386})
-RUBY_FUNC_ATTRIBUTE(__cdecl__,    FUNC_CDECL,    rb_cv_func_cdecl,    ${if_i386})
-RUBY_FUNC_ATTRIBUTE(__fastcall__, FUNC_FASTCALL, rb_cv_func_fastcall, ${if_i386})
-RUBY_FUNC_ATTRIBUTE(__optimize__("O0"), FUNC_UNOPTIMIZED, rb_cv_func_unoptimized)
-RUBY_FUNC_ATTRIBUTE(__optimize__("-Os","-fomit-frame-pointer"), FUNC_MINIMIZED, rb_cv_func_minimized)
-
-AS_IF([test "$GCC" = yes], [
-    AC_CACHE_CHECK([for function alias], [rb_cv_gcc_function_alias],
-	[rb_cv_gcc_function_alias=no
-	for a in alias weak,alias; do
-	    AC_TRY_LINK([void foo(void) {}
-		void bar(void) __attribute__(($a("foo")));], [bar()],
-		[rb_cv_gcc_function_alias=$a; break])
-	done])
-    AS_IF([test "$rb_cv_gcc_function_alias" != no], [
-	AC_DEFINE(HAVE_ATTRIBUTE_FUNCTION_ALIAS)
-	AC_DEFINE_UNQUOTED([RUBY_ALIAS_FUNCTION_TYPE(type, prot, name, args)],
-			   [type prot __attribute__(($rb_cv_gcc_function_alias(@%:@name)));])
-	AC_DEFINE_UNQUOTED([RUBY_ALIAS_FUNCTION_VOID(prot, name, args)],
-			   [RUBY_ALIAS_FUNCTION_TYPE(void, prot, name, args)])
-    ])
-
-    AC_CACHE_CHECK([for __atomic builtins], [rb_cv_gcc_atomic_builtins], [
-	AC_TRY_LINK([unsigned char atomic_var;],
-		    [
-			__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])])
-    AS_IF([test "$rb_cv_gcc_atomic_builtins" = yes], [
-	AC_DEFINE(HAVE_GCC_ATOMIC_BUILTINS)
-    ])
-
-    AC_CACHE_CHECK([for __sync builtins], [rb_cv_gcc_sync_builtins], [
-	AC_TRY_LINK([unsigned char atomic_var;],
-		    [
-			__sync_lock_test_and_set(&atomic_var, 0);
-			__sync_lock_test_and_set(&atomic_var, 1);
-			__sync_fetch_and_add(&atomic_var, 1);
-			__sync_fetch_and_sub(&atomic_var, 1);
-			__sync_or_and_fetch(&atomic_var, 1);
-			__sync_val_compare_and_swap(&atomic_var, 0, 1);
-		    ],
-		    [rb_cv_gcc_sync_builtins=yes],
-		    [rb_cv_gcc_sync_builtins=no])])
-    AS_IF([test "$rb_cv_gcc_sync_builtins" = yes], [
-	AC_DEFINE(HAVE_GCC_SYNC_BUILTINS)
-    ])
-
-    AC_CACHE_CHECK(for __builtin_unreachable, rb_cv_func___builtin_unreachable,
-    [RUBY_WERROR_FLAG(
-    [AC_TRY_LINK([volatile int zero;],
-	[if (zero) __builtin_unreachable();],
-	[rb_cv_func___builtin_unreachable=yes],
-	[rb_cv_func___builtin_unreachable=no])
-    ])
-    ])
-    AS_IF([test "$rb_cv_func___builtin_unreachable" = yes], [
-	AC_DEFINE_UNQUOTED(UNREACHABLE, [__builtin_unreachable()])
-    ])
-])
-
-AC_CACHE_CHECK(for exported function attribute, rb_cv_func_exported, [
-rb_cv_func_exported=no
-RUBY_WERROR_FLAG([
-for mac in '__attribute__ ((__visibility__("default")))' '__declspec(dllexport)'; do
-  AC_TRY_COMPILE([@%:@define RUBY_FUNC_EXPORTED $mac extern
-    RUBY_FUNC_EXPORTED void conftest_attribute_check(void);], [],
-    [rb_cv_func_exported="$mac"; break])
-done
-])])
-AS_IF([test "$rb_cv_func_exported" != no], [
-    AC_DEFINE_UNQUOTED(RUBY_FUNC_EXPORTED, [$rb_cv_func_exported extern])
-])
-
-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
-    ])]
-)
-AS_IF([test "$rb_cv_function_name_string" != no], [
-    AC_DEFINE_UNQUOTED(RUBY_FUNCTION_NAME_STRING, [$rb_cv_function_name_string])
-])
-
-AC_CACHE_CHECK(if enum over int is allowed, rb_cv_enum_over_int, [
-    rb_cv_enum_over_int=no
-    AS_IF([test "x$ac_cv_type_long_long" = xyes], [
-	type="unsigned long long" max="ULLONG_MAX"
-    ], [
-	type="unsigned long" max="ULONG_MAX"
-    ])
-    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]
-	)
-    ])
-])
-AS_IF([test $rb_cv_enum_over_int = yes], [
-    AC_DEFINE(ENUM_OVER_INT, 1)
-])
-
-dnl Check whether we need to define sys_nerr locally
-AC_CHECK_DECLS([sys_nerr], [], [], [$ac_includes_default
-@%:@include <errno.h>])
-
-AC_CHECK_DECLS([getenv])
-
-AS_CASE(["$target_cpu"],
-[alpha*|sh4|sh4el|sh4eb], [AS_CASE(["$target_os"::"$GCC"],
-		[*::yes],  # gcc
-			[CFLAGS="-mieee $CFLAGS"],
-		[osf*],    # ccc
-			[CFLAGS="-ieee $CFLAGS"],
-		)],
-[sparc*], [AC_LIBOBJ([sparc])])
-
-ac_cv_header_net_socket_h=${ac_cv_header_net_socket_h=no}
-AS_IF([test "$ac_cv_header_net_socket_h" = yes], [
-    ac_cv_header_sys_socket_h=${ac_cv_header_sys_socket_h=no}
-], [
-    ac_cv_header_sys_socket_h=${ac_cv_header_sys_socket_h=yes}
-])
-
-
-AC_TYPE_SIZE_T
-RUBY_CHECK_SIGNEDNESS(size_t, [AC_MSG_ERROR(size_t is signed)], [],
-		      [@%:@include <sys/types.h>])
-RUBY_CHECK_SIZEOF(size_t, [int long void*], [], [@%:@include <sys/types.h>])
-RUBY_CHECK_SIZEOF(ptrdiff_t, size_t, [], [@%:@include <stddef.h>])
-RUBY_CHECK_PRINTF_PREFIX(size_t, z)
-RUBY_CHECK_PRINTF_PREFIX(ptrdiff_t, t)
-AC_STRUCT_ST_BLKSIZE
-AC_STRUCT_ST_BLOCKS
-AC_STRUCT_ST_RDEV
-RUBY_CHECK_SIZEOF([struct stat.st_size], [off_t int long "long long"], [], [@%:@include <sys/stat.h>])
-AS_IF([test "$ac_cv_member_struct_stat_st_blocks" = yes], [
-    RUBY_CHECK_SIZEOF([struct stat.st_blocks], [off_t int long "long long"], [], [@%:@include <sys/stat.h>])
-])
-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])
-AC_CHECK_MEMBERS([struct stat.st_mtim])
-AC_CHECK_MEMBERS([struct stat.st_mtimespec])
-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>
-@%:@endif
-@%:@ifdef HAVE_SYS_TIME_H
-@%:@include <sys/time.h>
-@%:@endif])
-
-AS_IF([test "${ac_cv_type_struct_timeval}" = yes], [
-    RUBY_CHECK_SIZEOF([struct timeval.tv_sec], [time_t long "long long"], [],
-		      [@%:@ifdef HAVE_TIME_H
-@%:@include <time.h>
-@%:@endif
-@%:@ifdef HAVE_SYS_TIME_H
-@%:@include <sys/time.h>
-@%:@endif])
-    AS_CASE(${ac_cv_sizeof_struct_timeval_tv_sec},
-	    [SIZEOF_INT], [t=int],
-	    [SIZEOF_LONG], [t=long],
-	    [SIZEOF_LONG_LONG], [t=LONG_LONG],
-	    [t=])
-    AS_IF([test "${t}" != ""], [
-	AC_DEFINE_UNQUOTED(TYPEOF_TIMEVAL_TV_SEC, [$t])
-    ])
-])
-
-AC_CHECK_TYPES([struct timespec], [], [], [@%:@ifdef HAVE_TIME_H
-@%:@include <time.h>
-@%:@endif
-@%:@ifdef HAVE_SYS_TIME_H
-@%:@include <sys/time.h>
-@%:@endif])
-
-AC_CHECK_TYPES([struct timezone], [], [], [@%:@ifdef HAVE_TIME_H
-@%:@ include <time.h>
-@%:@endif
-@%:@ifdef HAVE_SYS_TIME_H
-@%:@ include <sys/time.h>
-@%:@endif])
-
-AC_CHECK_TYPES([clockid_t], [], [], [@%:@ifdef HAVE_TIME_H
-@%:@ include <time.h>
-@%:@endif
-@%:@ifdef HAVE_SYS_TIME_H
-@%:@ include <sys/time.h>
-@%:@endif])
-
-AC_CACHE_VAL([rb_cv_large_fd_select],
-    [AC_CHECK_TYPE(fd_mask, [rb_cv_large_fd_select=yes], [rb_cv_large_fd_select=no], [AC_INCLUDES_DEFAULT([])
-@%:@ifdef HAVE_SYS_SELECT_H
-@%:@ include <sys/select.h>
-@%:@endif])])
-AS_IF([test "$rb_cv_large_fd_select" = yes], [
-    AC_DEFINE(HAVE_RB_FD_INIT, 1)
-])
-
-dnl RUBY_DEFINT TYPENAME, SIZE, [UNSIGNED], [INCLUDES = DEFAULT-INCLUDES]
-AC_DEFUN([RUBY_DEFINT], [dnl
-AS_VAR_PUSHDEF([cond], [rb_defint_cond])dnl
-AS_VAR_PUSHDEF([type], [rb_defint_type])dnl
-AC_CACHE_CHECK([for $1], [rb_cv_type_$1],
-[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT([$4])
-typedef $1 t; int s = sizeof(t) == 42;])],
-   [rb_cv_type_$1=yes],
-   [AS_CASE([m4_bmatch([$2], [^[1-9][0-9]*$], $2, [$ac_cv_sizeof_]AS_TR_SH($2))],
-    ["1"], [ rb_cv_type_$1="m4_if([$3], [], [signed ], [$3 ])char"],
-    ["$ac_cv_sizeof_short"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])short"],
-    ["$ac_cv_sizeof_int"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])int"],
-    ["$ac_cv_sizeof_long"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])long"],
-    ["$ac_cv_sizeof_long_long"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])long long"],
-    ["${ac_cv_sizeof___int64@%:@*:}"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])__int64"],
-    ["${ac_cv_sizeof___int128@%:@*:}"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])__int128"],
-    [ rb_cv_type_$1=no])])])
-AS_IF([test "${rb_cv_type_$1}" != no], [
-    type="${rb_cv_type_$1@%:@@%:@unsigned }"
-    AS_IF([test "$type" != yes && eval 'test -n "${ac_cv_sizeof_'$type'+set}"'], [
-	eval cond='"${ac_cv_sizeof_'$type'}"'
-	AS_CASE([$cond], [*:*], [
-	    cond=AS_TR_CPP($type)
-	    echo "@%:@if defined SIZEOF_"$cond" && SIZEOF_"$cond" > 0" >> confdefs.h
-	], [cond=])
-    ], [cond=])
-    AC_DEFINE([HAVE_]AS_TR_CPP($1), 1)
-    AS_IF([test "${rb_cv_type_$1}" = yes], [
-	m4_bmatch([$2], [^[1-9][0-9]*$], [AC_CHECK_SIZEOF([$1], 0, [AC_INCLUDES_DEFAULT([$4])])],
-			[RUBY_CHECK_SIZEOF([$1], [$2], [], [AC_INCLUDES_DEFAULT([$4])])])
-    ], [
-	AC_DEFINE_UNQUOTED($1, [$rb_cv_type_$1])
-	AC_DEFINE_UNQUOTED([SIZEOF_]AS_TR_CPP($1), [SIZEOF_]AS_TR_CPP([$type]))
-    ])
-    test -n "$cond" && echo "@%:@endif /* $cond */" >> confdefs.h
-])
-AS_VAR_POPDEF([cond])dnl
-AS_VAR_POPDEF([type])dnl
-])
-
-RUBY_DEFINT(int8_t, 1)
-RUBY_DEFINT(uint8_t, 1, unsigned)
-RUBY_DEFINT(int16_t, 2)
-RUBY_DEFINT(uint16_t, 2, unsigned)
-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.
-
-AC_CACHE_CHECK(for stack end address, rb_cv_stack_end_address,
-[rb_cv_stack_end_address=no
-  AC_TRY_LINK(
-    [extern void *__libc_stack_end;],
-    [if (!__libc_stack_end) return 1;],
-    [rb_cv_stack_end_address="__libc_stack_end"])
-])
-AS_IF([test $rb_cv_stack_end_address != no], [
-  AC_DEFINE_UNQUOTED(STACK_END_ADDRESS, $rb_cv_stack_end_address)
-])
-
-# posix_memalign(memptr, alignment, size) implemented for OpenBSD 4.8 doesn't work if alignment > MALLOC_PAGESIZE.
-# [ruby-core:42158] https://bugs.ruby-lang.org/issues/5901
-# OpenBSD 5.2 fixed the problem. (src/lib/libc/stdlib/malloc.c:1.142)
-# MirOS #10semel has the problem but fixed in the repository.  (src/lib/libc/stdlib/malloc.c:1.9)
-AS_CASE(["$target_os"],
-[openbsd*|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
-       AC_TRY_RUN([
-#include <math.h>
-#include <unistd.h>
-
-int
-main() {
-  if ((int)log2((double)sysconf(_SC_PAGESIZE)) != $page_log) return 1;
-  return 0;
-}
-       ],
-       rb_cv_page_size_log="$page_log"; break)
-     done])
-  AS_IF([test $rb_cv_page_size_log != no], [
-    AC_DEFINE_UNQUOTED(HEAP_ALIGN_LOG, $rb_cv_page_size_log)
-  ], [
-    AC_DEFINE_UNQUOTED(HEAP_ALIGN_LOG, 12)
-  ])
-])
-
-dnl Checks for library functions.
-AC_TYPE_GETGROUPS
-AC_TYPE_SIGNAL
-AS_CASE(["${target_cpu}-${target_os}:${target_archs}"],
-[powerpc-darwin*], [
-  AC_LIBSOURCES(alloca.c)
-  AC_SUBST([ALLOCA], [\${LIBOBJDIR}alloca.${ac_objext}])
-  AC_DEFINE(C_ALLOCA)
-  AC_DEFINE_UNQUOTED(alloca, alloca)
-  ],
-[universal-darwin*:*ppc*], [
-  AC_LIBSOURCES(alloca.c)
-  AC_SUBST([ALLOCA], [\${LIBOBJDIR}alloca.${ac_objext}])
-  RUBY_DEFINE_IF([defined __powerpc__], C_ALLOCA, 1)
-  RUBY_DEFINE_IF([defined __powerpc__], alloca, alloca)
-  ],
-[
-  AC_FUNC_ALLOCA
-  ])
-AS_IF([test "x$ALLOCA" = "x"], [
-    AC_CACHE_CHECK([for dynamic size alloca], rb_cv_dynamic_alloca, [
-    for chk in ok __chkstk; do
-	AC_TRY_LINK([
-	    @%:@ifdef HAVE_ALLOCA_H
-	    @%:@include <alloca.h>
-	    @%:@endif
-	    void $chk() {}
-	    int dynamic_alloca_test;
-	    int dynamic_alloca_result;],
-	    [dynamic_alloca_result = alloca(dynamic_alloca_test) != 0;],
-	    [rb_cv_dynamic_alloca=$chk; break])
-    done])
-    AS_IF([test "x$rb_cv_dynamic_alloca" = "x__chkstk"], [
-	AC_DEFINE_UNQUOTED(RUBY_ALLOCA_CHKSTK, _$rb_cv_dynamic_alloca)
-	AS_CASE("$target_cpu",
-	[x64|x86_64], [
-	    AC_SUBST([ALLOCA], [\${LIBOBJDIR}x86_64-chkstk.${ac_objext}])
-	],)
-    ])
-])
-AC_FUNC_MEMCMP
-
-# http://sources.redhat.com/ml/libc-hacker/2005-08/msg00008.html
-# Debian GNU/Linux Etch's libc6.1 2.3.6.ds1-13etch5 has this problem.
-# Debian GNU/Linux Lenny's libc6.1 2.7-10 has no problem.
-AC_CACHE_CHECK(for broken erfc of glibc-2.3.6 on IA64, rb_cv_broken_glibc_ia64_erfc,
-  [AC_TRY_RUN([
-#include <math.h>
-int
-main()
-{
-   erfc(10000.0);
-   return 0;
-}
-],
-	rb_cv_broken_glibc_ia64_erfc=no,
-	rb_cv_broken_glibc_ia64_erfc=yes,
-	rb_cv_broken_glibc_ia64_erfc=no)])
-AS_CASE([$rb_cv_broken_glibc_ia64_erfc],[yes],[ac_cv_func_erf=no])
-
-AS_CASE(["$target_os"],[freebsd*],[
-	 AC_DEFINE(BROKEN_CLOSE)
-	 AC_REPLACE_FUNCS(close)
-	 ])
-
-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(["$target_os"],
-[aix* | k*bsd*-gnu | kopensolaris*-gnu | linux* | darwin*], [AC_DEFINE(SPT_TYPE,SPT_REUSEARGV)],
-[hpux*], [AC_DEFINE(SPT_TYPE,SPT_PSTAT) ],
-[])
-AC_CHECK_HEADERS(sys/pstat.h)
-
-
-AC_CACHE_CHECK(for signbit, rb_cv_have_signbit,
-  [AC_TRY_LINK([
-#include <math.h>
-], [int v = signbit(-0.0);],
-	rb_cv_have_signbit=yes,
-	rb_cv_have_signbit=no)])
-AS_IF([test "$rb_cv_have_signbit" = yes], [
-  AC_DEFINE(HAVE_SIGNBIT)
-], [
-  AC_LIBOBJ([signbit])
-])
-
-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(arc4random_buf)
-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(crypt_r)
-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(fdopendir)
-AC_CHECK_FUNCS(fgetattrlist)
-AC_CHECK_FUNCS(fmod)
-AC_CHECK_FUNCS(fstatat)
-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(lutimes)
-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(openat)
-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(pwrite)
-AC_CHECK_FUNCS(qsort_r)
-AC_CHECK_FUNCS(qsort_s)
-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)])
-])
-
-AS_IF([test "$ac_cv_func_crypt_r" = yes],
-    [AC_CHECK_HEADERS(crypt.h)])
-AS_IF([test "$ac_cv_func_crypt_r:$ac_cv_header_crypt_h" = yes:yes],
-    [AC_CHECK_MEMBERS([struct crypt_data.initialized], [], [],
-		      [AC_INCLUDES_DEFAULT([@%:@include <crypt.h>])])])
-
-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_$1)=no])])
-AS_IF([test "${AS_TR_SH(rb_cv_builtin_$1)}" != no], [
-  AC_DEFINE(AS_TR_CPP(HAVE_BUILTIN_$1))
-])])
-RUBY_CHECK_BUILTIN_FUNC(__builtin_bswap16, [__builtin_bswap16(0)])
-RUBY_CHECK_BUILTIN_FUNC(__builtin_bswap32, [__builtin_bswap32(0)])
-RUBY_CHECK_BUILTIN_FUNC(__builtin_bswap64, [__builtin_bswap64(0)])
-RUBY_CHECK_BUILTIN_FUNC(__builtin_popcount, [__builtin_popcount(0)])
-RUBY_CHECK_BUILTIN_FUNC(__builtin_popcountll, [__builtin_popcountll(0)])
-RUBY_CHECK_BUILTIN_FUNC(__builtin_clz, [__builtin_clz(0)])
-RUBY_CHECK_BUILTIN_FUNC(__builtin_clzl, [__builtin_clzl(0)])
-RUBY_CHECK_BUILTIN_FUNC(__builtin_clzll, [__builtin_clzll(0)])
-RUBY_CHECK_BUILTIN_FUNC(__builtin_ctz, [__builtin_ctz(0)])
-RUBY_CHECK_BUILTIN_FUNC(__builtin_ctzll, [__builtin_ctzll(0)])
-RUBY_CHECK_BUILTIN_FUNC(__builtin_add_overflow, [int x;__builtin_add_overflow(0,0,&x)])
-RUBY_CHECK_BUILTIN_FUNC(__builtin_sub_overflow, [int x;__builtin_sub_overflow(0,0,&x)])
-RUBY_CHECK_BUILTIN_FUNC(__builtin_mul_overflow, [int x;__builtin_mul_overflow(0,0,&x)])
-RUBY_CHECK_BUILTIN_FUNC(__builtin_mul_overflow_p, [__builtin_mul_overflow_p(0,0,(int)0)])
-RUBY_CHECK_BUILTIN_FUNC(__builtin_constant_p, [__builtin_constant_p(0)])
-RUBY_CHECK_BUILTIN_FUNC(__builtin_choose_expr, [
-    [int x[__extension__(__builtin_choose_expr(1, 1, -1))]];
-    [int y[__extension__(__builtin_choose_expr(0, -1, 1))]];
-    ])
-AS_IF([test x$rb_cv_builtin___builtin_choose_expr = xyes], [
-    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))]];
-    ])
-])
-RUBY_CHECK_BUILTIN_FUNC(__builtin_types_compatible_p, [__builtin_types_compatible_p(int, int)])
-
-AS_IF([test "$ac_cv_func_qsort_r" != no], [
-  AC_CACHE_CHECK(whether qsort_r is GNU version, rb_cv_gnu_qsort_r,
-    [AC_TRY_COMPILE([
-@%:@include <stdlib.h>
-void qsort_r(void *base, size_t nmemb, size_t size,
-	    int (*compar)(const void *, const void *, void *),
-	    void *arg);
-],[ ],
-      [rb_cv_gnu_qsort_r=yes],
-      [rb_cv_gnu_qsort_r=no])
-  ])
-  AC_CACHE_CHECK(whether qsort_r is BSD version, rb_cv_bsd_qsort_r,
-    [AC_TRY_COMPILE([
-@%:@include <stdlib.h>
-void qsort_r(void *base, size_t nmemb, size_t size,
-	     void *arg, int (*compar)(void *, const void *, const void *));
-],[ ],
-      [rb_cv_bsd_qsort_r=yes],
-      [rb_cv_bsd_qsort_r=no])
-  ])
-  AS_CASE("$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)
-  ])
-])
-
-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)])
-
-# Some platform need -lrt for clock_gettime, but the other don't.
-AS_IF([test x"$ac_cv_func_clock_gettime" != xyes], [
-    # glibc 2.17 moves clock_* functions from librt to the main C library.
-    # http://sourceware.org/ml/libc-announce/2012/msg00001.html
-    AC_CHECK_LIB(rt, clock_gettime)
-    AS_IF([test x"$ac_cv_lib_rt_clock_gettime" = xyes], [
-	AC_DEFINE(HAVE_CLOCK_GETTIME, 1)
-    ])
-])
-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([
-#include <stdlib.h>
-], [int v = unsetenv("foo");],
-	rb_cv_unsetenv_return_value=yes,
-	rb_cv_unsetenv_return_value=no)])
-AS_IF([test "$rb_cv_unsetenv_return_value" = no], [
-  AC_DEFINE(VOID_UNSETENV)
-])
-
-# used for AC_ARG_WITH(setjmp-type)
-AC_DEFUN([RUBY_CHECK_SETJMP], [
-AC_CACHE_CHECK([for ]$1[ as a macro or function], ac_cv_func_$1,
-  [AC_TRY_COMPILE([
-@%:@include <setjmp.h>
-]AC_INCLUDES_DEFAULT([$3])[
-@%:@define JMPARGS_1 env
-@%:@define JMPARGS_2 env,1
-@%:@define JMPARGS JMPARGS_]m4_ifval($2,2,1)[
-],
-    m4_ifval($2,$2,jmp_buf)[ env; $1(JMPARGS);],
-    ac_cv_func_$1=yes,
-    ac_cv_func_$1=no)]
-)
-AS_IF([test "$ac_cv_func_]$1[" = yes], [AC_DEFINE([HAVE_]AS_TR_CPP($1), 1)])
-])
-
-AC_DEFUN([RUBY_CHECK_BUILTIN_SETJMP], [
-AS_IF([test x"${ac_cv_func___builtin_setjmp}" = xyes], [
-   unset ac_cv_func___builtin_setjmp
-])
-AC_CACHE_CHECK(for __builtin_setjmp, ac_cv_func___builtin_setjmp,
-    [
-    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;
-	    @%:@ifdef NORETURN
-	    NORETURN(void t(void));
-	    @%:@endif
-	    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])
-])
-
-AC_DEFUN([RUBY_SETJMP_TYPE], [
-RUBY_CHECK_BUILTIN_SETJMP
-RUBY_CHECK_SETJMP(_setjmpex, [], [@%:@include <setjmpex.h>])
-RUBY_CHECK_SETJMP(_setjmp)
-RUBY_CHECK_SETJMP(sigsetjmp, [sigjmp_buf])
-AC_MSG_CHECKING(for setjmp type)
-setjmp_suffix=
-unset setjmp_sigmask
-AC_ARG_WITH(setjmp-type,
-	AS_HELP_STRING([--with-setjmp-type], [select setjmp type]),
-	[
-	AS_CASE([$withval],
-	[__builtin_setjmp], [setjmp=__builtin_setjmp],
-	[_setjmp], [ setjmp_prefix=_],
-	[sigsetjmp,*], [ setjmp_prefix=sig setjmp_sigmask=`expr "$withval" : 'sigsetjmp\(,.*\)'`],
-	[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=
-AS_IF([test ${setjmp_prefix+set}], [
-    AS_IF([test "${setjmp_prefix}" && eval test '$ac_cv_func_'${setjmp_prefix}setjmp${setjmp_suffix} = no], [
-	AC_MSG_ERROR(${setjmp_prefix}setjmp${setjmp_suffix} is not available)
-    ])
-], [{ AS_CASE("$ac_cv_func___builtin_setjmp", [yes*], [true], [false]) }], [
-    setjmp_cast=`expr "$ac_cv_func___builtin_setjmp" : "yes with cast (\(.*\))"`
-    setjmp_prefix=__builtin_
-    setjmp_suffix=
-], [test "$ac_cv_header_setjmpex_h:$ac_cv_func__setjmpex" = yes:yes], [
-    setjmp_prefix=
-    setjmp_suffix=ex
-], [test "$ac_cv_func__setjmp" = yes], [
-    setjmp_prefix=_
-    setjmp_suffix=
-], [test "$ac_cv_func_sigsetjmp" = yes], [
-    AS_CASE([$target_os],[solaris*|cygwin*],[setjmp_prefix=],[setjmp_prefix=sig])
-    setjmp_suffix=
-], [
-    setjmp_prefix=
-    setjmp_suffix=
-])
-AS_IF([test x$setjmp_prefix:$setjmp_sigmask = xsig:], [
-    setjmp_sigmask=,0
-])
-AC_MSG_RESULT(${setjmp_prefix}setjmp${setjmp_suffix}${setjmp_cast:+\($setjmp_cast\)}${setjmp_sigmask})
-AC_DEFINE_UNQUOTED([RUBY_SETJMP(env)], [${setjmp_prefix}setjmp${setjmp_suffix}($setjmp_cast(env)${setjmp_sigmask})])
-AC_DEFINE_UNQUOTED([RUBY_LONGJMP(env,val)], [${setjmp_prefix}longjmp($setjmp_cast(env),val)])
-AC_DEFINE_UNQUOTED(RUBY_JMP_BUF, ${setjmp_sigmask+${setjmp_prefix}}jmp_buf)
-AS_IF([test x$setjmp_suffix = xex], [AC_DEFINE_UNQUOTED(RUBY_USE_SETJMPEX, 1)])
-])
-# End of setjmp check.
-
-AC_ARG_ENABLE(setreuid,
-       AS_HELP_STRING([--enable-setreuid], [use setreuid()/setregid() according to need even if obsolete]),
-       [use_setreuid=$enableval])
-AS_IF([test "$use_setreuid" = yes], [
-    AC_DEFINE(USE_SETREUID)
-    AC_DEFINE(USE_SETREGID)
-])
-AC_STRUCT_TIMEZONE
-AC_CACHE_CHECK(for struct tm.tm_gmtoff, rb_cv_member_struct_tm_tm_gmtoff,
-  [AC_TRY_COMPILE([
-@%:@define _BSD_SOURCE
-@%:@define _DEFAULT_SOURCE
-@%:@include <time.h>
-   ],
-    [struct tm t; t.tm_gmtoff = 3600;],
-  [rb_cv_member_struct_tm_tm_gmtoff=yes],
-  [rb_cv_member_struct_tm_tm_gmtoff=no])])
-AS_IF([test "$rb_cv_member_struct_tm_tm_gmtoff" = yes], [
-  AC_DEFINE(HAVE_STRUCT_TM_TM_GMTOFF)
-])
-AC_CACHE_CHECK(for external int daylight, rb_cv_have_daylight,
-  [AC_TRY_LINK([#include <time.h>
-  int i;],
-	[i = daylight;],
-	rb_cv_have_daylight=yes,
-	rb_cv_have_daylight=no)])
-AS_IF([test "$rb_cv_have_daylight" = yes], [
-  AC_DEFINE(HAVE_DAYLIGHT)
-])
-
-AC_CACHE_CHECK(for negative time_t for gmtime(3), rb_cv_negative_time_t,
-  [AC_TRY_RUN([
-#include <stdlib.h>
-#include <time.h>
-
-void
-check(tm, y, m, d, h, s)
-    struct tm *tm;
-    int y, m, d, h, s;
-{
-    if (!tm ||
-	tm->tm_year != y ||
-	tm->tm_mon  != m-1 ||
-	tm->tm_mday != d ||
-	tm->tm_hour != h ||
-	tm->tm_sec  != s) {
-	exit(1);
-    }
-}
-
-int
-main()
-{
-   time_t t = -1;
-   struct tm *tm;
-
-   check(gmtime(&t), 69, 12, 31, 23, 59);
-   t = ~(time_t)0 << 31;
-   check(gmtime(&t), 1, 12, 13, 20, 52);
-   return 0;
-}
-],
-	rb_cv_negative_time_t=yes,
-	rb_cv_negative_time_t=no,
-	rb_cv_negative_time_t=yes)])
-AS_IF([test "$rb_cv_negative_time_t" = yes], [
-  AC_DEFINE(NEGATIVE_TIME_T)
-])
-
-# [ruby-dev:40910] overflow of time on FreeBSD
-# http://www.freebsd.org/cgi/query-pr.cgi?pr=145341
-AC_CACHE_CHECK(for localtime(3) overflow correctly, rb_cv_localtime_overflow,
-  [AC_TRY_RUN([
-#include <stdlib.h>
-#include <time.h>
-
-void
-check(time_t t1)
-{
-    struct tm *tm;
-    time_t t2;
-    tm = localtime(&t1);
-    if (!tm)
-	return; /* overflow detected.  ok. */
-    t2 = mktime(tm);
-    if (t1 == t2)
-        return; /* round-trip.  ok. */
-    exit(1);
-}
-
-int
-main()
-{
-    time_t t;
-    if (~(time_t)0 <= 0) {
-        t = (((time_t)1) << (sizeof(time_t) * 8 - 2));
-        t |= t - 1;
-    }
-    else {
-        t = ~(time_t)0;
-    }
-    check(t);
-    return 0;
-}
-],
-	rb_cv_localtime_overflow=yes,
-	rb_cv_localtime_overflow=no,
-	rb_cv_localtime_overflow=no)])
-AS_IF([test "$rb_cv_localtime_overflow" = no], [
-  AC_DEFINE(LOCALTIME_OVERFLOW_PROBLEM)
-])
-
-AS_IF([test "$ac_cv_func_sigprocmask" = yes && test "$ac_cv_func_sigaction" = yes], [
-   AC_DEFINE(POSIX_SIGNAL)
-], [
-  AC_CHECK_FUNCS(sigsetmask)
-  AC_CACHE_CHECK(for BSD signal semantics, rb_cv_bsd_signal,
-    [AC_TRY_RUN([
-#include <stdio.h>
-#include <signal.h>
-
-void
-sig_handler(dummy)
-     int dummy;
-{
-}
-
-int
-main()
-{
-  signal(SIGINT, sig_handler);
-  kill(getpid(), SIGINT);
-  kill(getpid(), SIGINT);
-  return 0;
-}
-],
-	rb_cv_bsd_signal=yes,
-	rb_cv_bsd_signal=no,
-	rb_cv_bsd_signal=$ac_cv_func_sigsetmask)])
-  AS_IF([test "$rb_cv_bsd_signal" = yes], [
-    AC_DEFINE(BSD_SIGNAL)
-  ])
-])
-
-AC_CHECK_TYPES([sig_t],[],[],[@%:@include <signal.h>])
-
-AS_IF([test "$ac_cv_func_getpgid" = no], [
-  # 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
-])
-AS_IF([test "$ac_cv_func_setpgid:$ac_cv_func_setpgrp" = no:yes], [
-  # 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
-])
-
-AS_IF([test x"$ac_cv_func_dirfd" = xno], [
-  AS_CASE(["$target_os"],[solaris*],
-          [AC_CHECK_MEMBERS([DIR.d_fd, DIR.dd_fd],,,[
-#include <sys/types.h>
-#include <dirent.h>
-])])
-])
-
-AS_IF([test x"$target_cpu" = xia64], [
-    AC_LIBOBJ([ia64])
-    AC_CACHE_CHECK(for __libc_ia64_register_backing_store_base,
-                   rb_cv___libc_ia64_register_backing_store_base,
-    [rb_cv___libc_ia64_register_backing_store_base=no
-    AC_TRY_LINK(
-      [extern unsigned long __libc_ia64_register_backing_store_base;],
-      [unsigned long p = __libc_ia64_register_backing_store_base;
-       printf("%ld\n", p);],
-      [rb_cv___libc_ia64_register_backing_store_base=yes])])
-    AS_IF([test $rb_cv___libc_ia64_register_backing_store_base = yes], [
-      AC_DEFINE(HAVE___LIBC_IA64_REGISTER_BACKING_STORE_BASE)
-    ])
-])
-
-AC_CACHE_CHECK(whether right shift preserve sign bit, rb_cv_rshift_sign,
-    [AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([], [(-1==(-1>>1))])],
-	rb_cv_rshift_sign=yes,
-	rb_cv_rshift_sign=no)])
-AS_IF([test "$rb_cv_rshift_sign" = yes], [
-  AC_DEFINE(RSHIFT(x,y), ((x)>>(int)(y)))
-], [
-  AC_DEFINE(RSHIFT(x,y), (((x)<0) ? ~((~(x))>>(int)(y)) : (x)>>(int)(y)))
-])
-
-AS_IF([test x"$ac_cv_func_gettimeofday" != xyes], [
-    AC_MSG_ERROR(gettimeofday() must exist)
-])
-
-AS_IF([test "$ac_cv_func_sysconf" = yes], [
-  AC_DEFUN([RUBY_CHECK_SYSCONF], [dnl
-  AC_CACHE_CHECK([whether _SC_$1 is supported], rb_cv_have_sc_[]m4_tolower($1),
-    [AC_TRY_COMPILE([#include <unistd.h>
-      ],
-      [_SC_$1 >= 0],
-      rb_cv_have_sc_[]m4_tolower($1)=yes,
-      rb_cv_have_sc_[]m4_tolower($1)=no)
-    ])
-  AS_IF([test "$rb_cv_have_sc_[]m4_tolower($1)" = yes], [
-    AC_DEFINE(HAVE__SC_$1)
-  ])
-  ])
-  RUBY_CHECK_SYSCONF(CLK_TCK)
-])
-
-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"],
-[m68*|x86*|x64|i?86|ia64|ppc*|sparc*|alpha*], [ $2=-1],
-[hppa*], [ $2=+1],
-[
-  AC_TRY_RUN([
-/* recurse to get rid of inlining */
-static int
-stack_growup_p(addr, n)
-    volatile int *addr, n;
-{
-    volatile int end;
-    if (n > 0)
-	return *addr = stack_growup_p(addr, n - 1);
-    else
-	return (&end > addr);
-}
-int main()
-{
-    int x;
-    return stack_growup_p(&x, 10);
-}
-], $2=-1, $2=+1, $2=0)
-  ])
-eval stack_grow_dir=\$$2])
-eval $2=\$stack_grow_dir
-AS_VAR_POPDEF([stack_grow_dir])])
-AS_IF([test "${universal_binary-no}" = yes ], [
-    archflagpat=`eval echo '"'"${ARCH_FLAG}"'"' | sed 's/[[][|.*]]/\\&/g'`
-    save_CFLAGS="$CFLAGS" new_cflags=`echo "$CFLAGS" | sed "s|$archflagpat"'||'`
-    save_LDFLAGS="$LDFLAGS" new_ldflags=`echo "$LDFLAGS" | sed "s|$archflagpat"'||'`
-    stack_dir=
-    for archs in ${universal_archnames}; do
-	archs=`echo $archs | sed 's/=.*//'`
-	CFLAGS="$new_cflags -arch $archs"
-	LDFLAGS="$new_ldflags -arch $archs"
-	RUBY_STACK_GROW_DIRECTION($archs, dir)
-	AS_IF([test x$stack_dir = x], [
-	    stack_dir=$dir
-	], [test x$stack_dir != x$dir], [
-	    stack_dir=no
-	])
-    done
-    CFLAGS="$save_CFLAGS" LDFLAGS="$save_LDFLAGS"
-    AS_IF([test x$stack_dir = xno], [
-	for archs in ${universal_archnames}; do
-	    archs=`echo $archs | sed 's/=.*//'`
-	    eval dir=\$[rb_cv_stack_grow_dir_]AS_TR_SH([$archs])
-	    RUBY_DEFINE_IF([defined __${archs}__], STACK_GROW_DIRECTION, $dir)
-	done
-    ], [
-	AC_DEFINE_UNQUOTED(STACK_GROW_DIRECTION, $stack_dir)
-    ])
-], [
-    RUBY_STACK_GROW_DIRECTION($target_cpu, dir)
-    AC_DEFINE_UNQUOTED(STACK_GROW_DIRECTION, $dir)
-])
-
-AS_IF([test x"$enable_pthread" = xyes], [
-    for pthread_lib in thr pthread pthreads c c_r root; do
-	AC_CHECK_LIB($pthread_lib, pthread_kill,
-		     rb_with_pthread=yes, rb_with_pthread=no)
-	AS_IF([test "$rb_with_pthread" = "yes"], [ break; fi
-    done
-    AS_IF([test x"$rb_with_pthread" = xyes], [
-	AC_DEFINE(_REENTRANT)
-	AC_DEFINE(_THREAD_SAFE)
-	AC_DEFINE(HAVE_LIBPTHREAD)
-	AC_CHECK_HEADERS(pthread_np.h, [], [], [@%:@include <pthread.h>])
-	AS_CASE([$pthread_lib],
-	[c],    [],
-	[root], [],
-	[c_r],  [MAINLIBS="-pthread $MAINLIBS"],
-	        [AS_CASE(["$target_os"],
-		    [openbsd*|mirbsd*], [LIBS="-pthread $LIBS"],
-		    [LIBS="-l$pthread_lib $LIBS"])])
-    ], [
-	AC_MSG_WARN("Don't know how to find pthread library on your system -- thread support disabled")
-    ])
-    AC_CACHE_CHECK([whether pthread_t is scalar type], [rb_cv_scalar_pthread_t], [
-	AC_TRY_COMPILE([
-	    @%:@include <pthread.h>
-	    ], [
-	    pthread_t thread_id;
-	    thread_id = 0;
-	    if (!thread_id) return 0;
-	    ], [rb_cv_scalar_pthread_t=yes], [rb_cv_scalar_pthread_t=no])
-    ])
-    AS_IF([test x"$rb_cv_scalar_pthread_t" = xyes], [
-	: # RUBY_CHECK_SIZEOF(pthread_t, [void* int long], [], [@%:@include <pthread.h>])
-    ], [
-	AC_DEFINE(NON_SCALAR_THREAD_ID)
-    ])
-    AC_CHECK_FUNCS(sched_yield pthread_attr_setinheritsched \
-	pthread_attr_get_np pthread_attr_getstack pthread_attr_init \
-	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_setname_np pthread_set_name_np)
-    AS_CASE(["$target_os"],[aix*],[ac_cv_func_pthread_getattr_np=no],[AC_CHECK_FUNCS(pthread_getattr_np)])
-    set_current_thread_name=
-    AS_IF([test "$ac_cv_func_pthread_setname_np" = yes], [
-	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
-	    ]
-	)
-	AS_IF([test -n "${rb_cv_func_pthread_setname_np_arguments}"], [
-	    set_current_thread_name="pthread_setname_np${rb_cv_func_pthread_setname_np_arguments}"
-	])
-    ], [test "$ac_cv_func_pthread_set_name_np" = yes], [
-	set_current_thread_name="pthread_set_name_np(pthread_self(), name)"
-    ])
-    AS_IF([test -n "$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), $set_another_thread_name)
-	    ])
-    ])
-])
-
-AS_IF([test x"$ac_cv_header_ucontext_h" = xno], [
-    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])])
-    AS_IF([test x"$rb_cv_ucontext_in_signal_h" = xyes], [
-	    AC_DEFINE_UNQUOTED(UCONTEXT_IN_SIGNAL_H, 1)
-    ])
-])
-AS_IF([test x"$ac_cv_header_ucontext_h" = xyes -o x"$rb_cv_ucontext_in_signal_h" = xyes], [
-    AC_CACHE_CHECK([if mcontext_t is a pointer], [rb_cv_mcontext_t_ptr],
-	[AC_TRY_COMPILE([
-	    @%:@include <signal.h>
-	    @%:@ifdef HAVE_UCONTEXT_H
-	    @%:@include <ucontext.h>
-	    @%:@endif
-        mcontext_t test(mcontext_t mc) {return mc+1;}
-	],
-	[test(0);],
-	[rb_cv_mcontext_t_ptr=yes], [rb_cv_mcontext_t_ptr=no])])
-    AS_IF([test x"$rb_cv_mcontext_t_ptr" = xyes], [
-	AC_DEFINE_UNQUOTED(DEFINE_MCONTEXT_PTR(mc, uc), mcontext_t mc = (uc)->uc_mcontext)
-    ], [
-	AC_DEFINE_UNQUOTED(DEFINE_MCONTEXT_PTR(mc, uc), mcontext_t *mc = &(uc)->uc_mcontext)
-    ])
-    AS_IF([test x"$rb_with_pthread" = xyes], [
-	AC_CHECK_FUNCS(getcontext setcontext)
-    ])
-])
-
-AS_IF([test "$ac_cv_func_fork_works" = "yes" -a "$rb_with_pthread" = "yes"], [
-    AC_CACHE_CHECK([if fork works with pthread], rb_cv_fork_with_pthread,
-	[AC_TRY_RUN([
-#include <stdlib.h>
-#include <unistd.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <signal.h>
-#ifndef EXIT_SUCCESS
-#define EXIT_SUCCESS 0
-#endif
-#ifndef EXIT_FAILURE
-#define EXIT_FAILURE 1
-#endif
-
-void *
-thread_func(void *dmy)
-{
-    return dmy;
-}
-
-int
-use_threads(void)
-{
-    pthread_t tid;
-    if (pthread_create(&tid, 0, thread_func, 0) != 0) {
-	return -1;
-    }
-    if (pthread_join(tid, 0) != 0) {
-	return -1;
-    }
-    return 0;
-}
-
-int
-main(int argc, char *argv[])
-{
-    pid_t pid;
-    if (use_threads()) return EXIT_FAILURE;
-    pid = fork();
-
-    if (pid) {
-	int loc;
-	sleep(1);
-	if (waitpid(pid, &loc, WNOHANG) == 0) {
-	    kill(pid, SIGKILL);
-	    return EXIT_FAILURE;
-	}
-        if (!WIFEXITED(loc) || WEXITSTATUS(loc) != EXIT_SUCCESS)
-           return EXIT_FAILURE;
-    }
-    else {
-	if (use_threads()) return EXIT_FAILURE;
-    }
-
-    return EXIT_SUCCESS;
-}],
-	rb_cv_fork_with_pthread=yes,
-	rb_cv_fork_with_pthread=no,
-	rb_cv_fork_with_pthread=yes)])
-    test x$rb_cv_fork_with_pthread = xyes || AC_DEFINE(CANNOT_FORK_WITH_PTHREAD)
-])
-
-
-}
-{ # runtime section
-
-dnl wheather use dln_a_out or not
-AC_ARG_WITH(dln-a-out,
-	AS_HELP_STRING([--with-dln-a-out], [use dln_a_out if possible]),
-	[
-	AS_CASE([$withval],
-	[yes], [
-	    AS_IF([test "$enable_shared" = yes], [
-		AC_MSG_ERROR(dln_a_out can not make shared library)
-	    ])
-	    with_dln_a_out=yes],
-	[
-	    with_dln_a_out=no])], [with_dln_a_out=no])
-
-AC_CACHE_CHECK(whether ELF binaries are produced, rb_cv_binary_elf,
-[AC_TRY_LINK([],[], [
-AS_CASE(["`head -1 conftest$EXEEXT | tr -dc '\177ELF' | tr '\177' .`"],
-[.ELF*], [rb_cv_binary_elf=yes], [rb_cv_binary_elf=no])],
-rb_cv_binary_elf=no)])
-
-AS_IF([test "$rb_cv_binary_elf" = yes], [
-  AC_DEFINE(USE_ELF)
-  AS_IF([test "$with_dln_a_out" = yes], [
-    AC_MSG_ERROR(dln_a_out does not work with ELF)
-  ])
-  AC_CHECK_HEADERS([elf.h elf_abi.h])
-  AS_IF([test $ac_cv_header_elf_h = yes -o $ac_cv_header_elf_abi_h = yes], [
-    AC_LIBOBJ([addr2line])
-  ])
-])
-
-AS_CASE(["$target_os"],
-[linux* | gnu* | k*bsd*-gnu | bsdi* | kopensolaris*-gnu], [
-    AS_IF([test "$rb_cv_binary_elf" = no], [
-	with_dln_a_out=yes
-    ], [
-	LDFLAGS="$LDFLAGS -rdynamic"
-    ])])
-LIBEXT=a
-
-AC_SUBST(DLDFLAGS)dnl
-AC_SUBST(ARCH_FLAG)dnl
-
-AC_SUBST(STATIC)dnl
-AC_SUBST(CCDLFLAGS)dnl
-AC_SUBST(LDSHARED)dnl
-AC_SUBST(LDSHAREDXX)dnl
-AC_SUBST(DLEXT)dnl
-AC_SUBST(DLEXT2)dnl
-AC_SUBST(LIBEXT)dnl
-AC_SUBST(ASMEXT, S)dnl
-
-STATIC=
-
-AS_IF([test "$with_dln_a_out" != yes], [
-  rb_cv_dlopen=unknown
-  AC_MSG_CHECKING(whether OS depend dynamic link works)
-  AS_IF([test "$GCC" = yes], [
-    AS_CASE(["$target_os"],
-    [darwin*], [
-      # The -fno-common is needed if we wish to embed the Ruby interpreter
-      # into a plugin module of some project (as opposed to embedding it
-      # within the project's application).  The -I/usr/local/include is
-      # needed because CPP as discovered by configure (cc -E -traditional)
-      # fails to consult /usr/local/include by default.  This causes
-      # mkmf.rb's have_header() to fail if the desired resource happens to be
-      # installed in the /usr/local tree.
-      RUBY_APPEND_OPTION(CCDLFLAGS, -fno-common)],
-    [bsdi*|cygwin*|mingw*|aix*|interix*], [ ],
-    [
-      RUBY_APPEND_OPTION(CCDLFLAGS, -fPIC)])
-  ], [
-    AS_CASE(["$target_os"],
-	[hpux*],          [CCDLFLAGS="$CCDLFLAGS +Z"],
-	[solaris*|irix*], [CCDLFLAGS="$CCDLFLAGS -KPIC"],
-	[sunos*],         [CCDLFLAGS="$CCDLFLAGS -PIC"],
-	[esix*|uxpds*],   [CCDLFLAGS="$CCDLFLAGS -KPIC"],
-	                  [: ${CCDLFLAGS=""}])
-  ])
-
-
-  AC_ARG_ENABLE(rpath,
-       AS_HELP_STRING([--enable-rpath], [embed run path into extension libraries.
-       enabled by default on ELF platforms]),
-       [enable_rpath=$enableval], [enable_rpath="$rb_cv_binary_elf"])
-
-  AS_CASE(["$target_os"],
-	[hpux*], [	DLDFLAGS="$DLDFLAGS -E"
-			: ${LDSHARED='$(LD) -b'}
-			XLDFLAGS="$XLDFLAGS -Wl,-E"
-			: ${LIBPATHENV=SHLIB_PATH}
-			rb_cv_dlopen=yes],
-	[solaris*], [	AS_IF([test "$GCC" = yes], [
-			    : ${LDSHARED='$(CC) -shared'}
-			    AS_IF([test "$rb_cv_prog_gnu_ld" = yes], [
-				LDFLAGS="$LDFLAGS -Wl,-E"
-			    ])
-			], [
-			    : ${LDSHARED='$(CC) -G'}
-			])
-			AS_IF([test "$ac_cv_sizeof_voidp" = 8], [
-			    : ${LIBPATHENV=LD_LIBRARY_PATH_64}
-			    : ${PRELOADENV=LD_PRELOAD_64}
-			], [
-			    : ${LIBPATHENV=LD_LIBRARY_PATH_32}
-			    : ${PRELOADENV=LD_PRELOAD_32}
-			])
-			rb_cv_dlopen=yes],
-	[sunos*], [	: ${LDSHARED='$(LD) -assert nodefinitions'}
-			rb_cv_dlopen=yes],
-	[irix*], [	: ${LDSHARED='$(LD) -shared'}
-			rb_cv_dlopen=yes],
-	[sysv4*], [	: ${LDSHARED='$(LD) -G'}
-			rb_cv_dlopen=yes],
-	[nto-qnx*], [	: ${LDSHARED='$(CC) -shared'}
-			rb_cv_dlopen=yes],
-	[esix*|uxpds*], [ : ${LDSHARED='$(LD) -G'}
-			rb_cv_dlopen=yes],
-	[osf*], [	: ${LDSHARED='$(LD) -shared -expect_unresolved "*"'}
-			rb_cv_dlopen=yes],
-	[bsdi3*], [	AS_CASE(["$CC"],
-			[*shlicc*], [	: ${LDSHARED='$(CC) -r'}
-					rb_cv_dlopen=yes])],
-	[linux* | gnu* | k*bsd*-gnu | netbsd* | bsdi* | kopensolaris*-gnu | haiku*], [
-			: ${LDSHARED='$(CC) -shared'}
-			AS_IF([test "$rb_cv_binary_elf" = yes], [
-			    LDFLAGS="$LDFLAGS -Wl,-export-dynamic"
-			])
-			rb_cv_dlopen=yes],
-	[interix*], [	: ${LDSHARED='$(CC) -shared'}
-			XLDFLAGS="$XLDFLAGS -Wl,-E"
-			LIBPATHFLAG=" -L%1\$-s"
-			rb_cv_dlopen=yes],
-	[freebsd*|dragonfly*], [
-			: ${LDSHARED='$(CC) -shared'}
-			AS_IF([test "$rb_cv_binary_elf" = yes], [
-			    LDFLAGS="$LDFLAGS -rdynamic"
-			    DLDFLAGS="$DLDFLAGS "'-Wl,-soname,$@'
-			], [
-			  test "$GCC" = yes && test "$rb_cv_prog_gnu_ld" = yes || LDSHARED='$(LD) -Bshareable'
-			])
-			rb_cv_dlopen=yes],
-	[openbsd*|mirbsd*], [	: ${LDSHARED='$(CC) -shared ${CCDLFLAGS}'}
-			AS_IF([test "$rb_cv_binary_elf" = yes], [
-			    LDFLAGS="$LDFLAGS -Wl,-E"
-			])
-			rb_cv_dlopen=yes],
-	[darwin*], [	: ${LDSHARED='$(CC) -dynamic -bundle'}
-			: ${LDFLAGS=""}
-			: ${LIBPATHENV=DYLD_LIBRARY_PATH}
-			: ${PRELOADENV=DYLD_INSERT_LIBRARIES}
-			rb_cv_dlopen=yes],
-        [aix*], [	: ${LDSHARED='$(CC)'}
-			LDSHARED="$LDSHARED ${linker_flag}-G"
-			EXTDLDFLAGS='-e$(TARGET_ENTRY)'
-			XLDFLAGS="${linker_flag}"'-bE:$(ARCHFILE)'" ${linker_flag}-brtl"
-			XLDFLAGS="$XLDFLAGS ${linker_flag}-blibpath:${prefix}/lib:${LIBPATH:-/usr/lib:/lib}"
-			: ${ARCHFILE="ruby.imp"}
-                        TRY_LINK='$(CC) $(LDFLAGS) -oconftest $(INCFLAGS) -I$(hdrdir) $(CPPFLAGS)'
-                        TRY_LINK="$TRY_LINK"' $(CFLAGS) $(src) $(LIBPATH) $(LOCAL_LIBS) $(LIBS)'
-			: ${LIBPATHENV=LIBPATH}
-			rb_cv_dlopen=yes],
-	[nto-qnx*], [	DLDFLAGS="$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"
-			rb_cv_dlopen=yes],
-	[cygwin*|mingw*], [
-			: ${LDSHARED='$(CC) -shared'}
-			XLDFLAGS="$XLDFLAGS -Wl,--stack,0x00200000,--enable-auto-import"
-			DLDFLAGS="${DLDFLAGS} -Wl,--enable-auto-image-base,--enable-auto-import"
-			: ${LIBPATHENV=PATH}
-			: ${PRELOADENV=""}
-			rb_cv_dlopen=yes],
-	[hiuxmpp], [	: ${LDSHARED='$(LD) -r'}],
-	[atheos*], [	: ${LDSHARED='$(CC) -shared'}
-			rb_cv_dlopen=yes],
-	[	: ${LDSHARED='$(LD)'}])
-  AC_MSG_RESULT($rb_cv_dlopen)
-
-  AS_IF([test "$rb_cv_dlopen" = yes], [
-    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=])
-	  AS_IF([test "x$flag" != x], [
-	    RUBY_APPEND_OPTIONS(DLDFLAGS, [$flag])
-	  ])
-	done
-      ])
-  ])
-
-  AS_IF([test "$enable_rpath:${RPATHFLAG}" = yes:], [
-      AS_IF([test "x$rpathflag" != x], [
-	  RPATHFLAG=" ${rpathflag}%1\$-s"
-      ])
-  ])
-])
-AS_IF([test "${LDSHAREDXX}" = ""], [
-    AS_CASE(["${LDSHARED}"],
-	[*'$(CC)'*], [
-	    LDSHAREDXX=`echo "${LDSHARED}" | sed 's/\$(CC)/$(CXX)/'`
-	    ],
-	[*'${CC}'*], [
-	    LDSHAREDXX=`echo "${LDSHARED}" | sed 's/\${CC}/${CXX}/'`
-	    ],
-	[*$CC*], [
-	    LDSHAREDXX=`echo "${LDSHARED}" | sed "s|$CC|$CXX|"`
-	    ],
-	[ld" "*], [
-	    ])
-])
-AS_CASE([${RPATHFLAG}],[*'%1$'*],[: ${LIBPATHFLAG=' -L%1$-s'}],[: ${LIBPATHFLAG=' -L%s'}])
-
-AC_SUBST(LINK_SO)
-AC_SUBST(LIBPATHFLAG)
-AC_SUBST(RPATHFLAG)
-AC_SUBST(LIBPATHENV, "${LIBPATHENV-LD_LIBRARY_PATH}")
-AC_SUBST(PRELOADENV, "${PRELOADENV-LD_PRELOAD}")
-AC_SUBST(TRY_LINK)
-
-AS_IF([test "x$OPT_DIR" != x], [
-    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${IFS}g"
-        done | tr '\012' ' ' | sed 's/ *$//'`
-    AS_IF([test x"$val" != x], [
-	test x"${LDFLAGS}" = x || LDFLAGS="$LDFLAGS "
-	LDFLAGS="$LDFLAGS$val"
-	test x"${DLDFLAGS}" = x || DLDFLAGS="$DLDFLAGS "
-	DLDFLAGS="$DLDFLAGS$val"
-    ])
-    LDFLAGS_OPTDIR="$val"
-])
-
-AS_CASE(["$target_os"],
-[freebsd*], [
-    AC_CHECK_LIB([procstat], [procstat_open_sysctl])
-    AS_IF([test "x$ac_cv_lib_procstat_procstat_open_sysctl" = xyes], [
-	AC_CHECK_FUNCS(procstat_getvmmap)
-    ])
-    ])
-AS_CASE(["$target_cpu-$target_os"],
-[*-darwin*], [
-    AC_CHECK_HEADERS([execinfo.h])
-    AS_IF([test "x$ac_cv_header_execinfo_h" = xyes], [
-	AC_CHECK_LIB([execinfo], [backtrace])
-	AC_CHECK_HEADERS([libunwind.h])
-    ])],
-[*-freebsd*|x86_64-netbsd*], [
-    AC_CHECK_HEADERS([execinfo.h])
-    AS_IF([test "x$ac_cv_header_execinfo_h" = xyes], [
-	AC_CHECK_LIB([execinfo], [backtrace])
-	AC_CHECK_LIB([unwind], [unw_backtrace])
-    ])])
-AC_CHECK_FUNCS(backtrace)
-
-AS_IF([test "x$ac_cv_func_backtrace" = xyes], [
-  AC_CACHE_CHECK(for broken backtrace, rb_cv_broken_backtrace,
-    [AC_TRY_RUN([
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-#include <signal.h>
-#include <execinfo.h>
-
-#define TRACE_SIZE 256
-
-void sigsegv(int signum, siginfo_t *info, void *ctx){
-    void *trace[TRACE_SIZE];
-    int n = backtrace(trace, TRACE_SIZE);
-    if (n > 0) {
-	/*fprintf(stdout, "backtrace:%d\n",n);*/
-    } else {
-	_exit(EXIT_FAILURE);
-    }
-    _exit(EXIT_SUCCESS);
-}
-int
-main(void)
-{
-    volatile int *a = NULL;
-    stack_t ss;
-    ss.ss_sp = malloc(SIGSTKSZ);
-    if (ss.ss_sp == NULL) {
-	fprintf(stderr, "cannot allocate memory for sigaltstack\n");
-	return EXIT_FAILURE;
-    }
-    ss.ss_size = SIGSTKSZ;
-    ss.ss_flags = 0;
-    if (sigaltstack(&ss, NULL) == -1) {
-	fprintf(stderr, "sigaltstack failed\n");
-	return EXIT_FAILURE;
-    }
-    struct sigaction sa;
-    memset(&sa, 0, sizeof(struct sigaction));
-    sigemptyset(&sa.sa_mask);
-    sa.sa_sigaction = sigsegv;
-    sa.sa_flags |= SA_SIGINFO;
-    sa.sa_flags |= SA_ONSTACK;
-    sigaction(SIGSEGV, &sa, NULL);
-    a[0] = 1;
-    return EXIT_SUCCESS;
-}
-],
-	rb_cv_broken_backtrace=no,
-	rb_cv_broken_backtrace=yes,
-	rb_cv_broken_backtrace=no)])
-  AS_IF([test "$rb_cv_broken_backtrace" = yes], [
-    AC_DEFINE(BROKEN_BACKTRACE, 1)
-  ])
-])
-
-AC_ARG_WITH(valgrind,
-        AS_HELP_STRING([--without-valgrind],[disable valgrind memcheck support]),
-        [], with_valgrind=yes)
-AS_IF([test x$with_valgrind != xno],
-        [AC_CHECK_HEADERS(valgrind/memcheck.h)])
-
-dln_a_out_works=no
-AS_IF([test "$ac_cv_header_a_out_h" = yes], [
-  AS_IF([test "$with_dln_a_out" = yes || test "$rb_cv_dlopen" = unknown], [
-    cat confdefs.h > config.h
-    AC_CACHE_CHECK(whether matz's dln works, rb_cv_dln_a_out,
-    [AC_TRY_COMPILE([
-#define USE_DLN_A_OUT
-#include "dln.c"
-],
-	[],
-	rb_cv_dln_a_out=yes,
-	rb_cv_dln_a_out=no)])
-    AS_IF([test "$rb_cv_dln_a_out" = yes], [
-      dln_a_out_works=yes
-      AC_DEFINE(USE_DLN_A_OUT)
-    ])
-  ])
-])
-
-AS_IF([test "$dln_a_out_works" = yes], [
-  AS_IF([test "$GCC" = yes], [
-    STATIC=-static
-  ], [
-    STATIC=-Bstatic
-  ])
-  DLEXT=so
-  CCDLFLAGS=
-], [
-  AS_CASE(["$target_os"],
-    [hpux*], [
-	DLEXT=sl],
-    [darwin*], [
-	SOEXT=dylib
-	DLEXT=bundle],
-    [cygwin*|mingw*|*djgpp*], [
-	LOAD_RELATIVE=1
-	SOEXT=dll
-	DLEXT=so],
-    [
-	DLEXT=so])
-])
-: ${SOEXT="${DLEXT}"}
-AC_SUBST(SOEXT)
-AS_IF([test "$rb_cv_dlopen:$load_relative" = yes:yes], [
-    AS_IF([test "$ac_cv_func_dladdr" = yes], [
-	LOAD_RELATIVE=1
-    ])
-])
-AS_IF([test x"$LOAD_RELATIVE" = x1], [
-    load_relative=yes
-], [
-    unset load_relative
-])
-
-len=2 # .rb
-n=`expr "$DLEXT"  : '.*'`; test "$n" -gt "$len" && len=$n
-n=`expr "$DLEXT2" : '.*'`; test "$n" -gt "$len" && len=$n
-AC_DEFINE_UNQUOTED(DLEXT_MAXLEN, `expr $len + 1`)
-test ".$DLEXT"  = "." || AC_DEFINE_UNQUOTED(DLEXT,  ".$DLEXT")
-test ".$DLEXT2" = "." || AC_DEFINE_UNQUOTED(DLEXT2, ".$DLEXT2")
-AC_SUBST(DLEXT)
-
-AS_IF([test "$with_dln_a_out" = yes], [
-  STRIP=true
-], [
-  AC_CHECK_TOOL(STRIP, strip, :)dnl
-])
-
-AS_CASE(["$target_os"],
-  [linux* | gnu* | k*bsd*-gnu | kopensolaris*-gnu], [
-	STRIP="$STRIP -S -x"],
-  [darwin*], [
-	STRIP="$STRIP -A -n"])
-
-AC_ARG_WITH(ext,
-            AC_HELP_STRING([--with-ext=EXTS],
-                           [pass to --with-ext option of extmk.rb]))
-AC_ARG_WITH(out-ext,
-            AC_HELP_STRING([--with-out-ext=EXTS],
-                           [pass to --without-ext option of extmk.rb]))
-EXTSTATIC=
-AC_SUBST(EXTSTATIC)dnl
-AC_ARG_WITH(static-linked-ext,
-	    AS_HELP_STRING([--with-static-linked-ext], [link external modules statically]),
-            [AS_CASE([$withval],[yes],[STATIC=;EXTSTATIC=static],[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)
-  AC_SUBST(ENCSTATIC, static)
-], [
-  ENCOBJS='dmyenc.$(OBJEXT)'
-  EXTOBJS='dmyext.$(OBJEXT)'
-])
-AC_SUBST(ENCOBJS)
-AC_SUBST(EXTOBJS)
-
-AC_ARG_WITH(setup,
-	    AS_HELP_STRING([--with-setup=SETUP], [use extension libraries setup]),
-	    [setup=$withval])
-AS_IF([test -n "$setup"], [
-    AS_IF([! test -f "ext/$setup" -o -f "$srcdir/ext/$setup"], [
-	AC_MSG_ERROR(Setup file $setup not found under ext or $srcdir/ext)
-    ])
-], [test -f "$srcdir/ext/Setup.$target_os"], [
-    setup="Setup.$target_os"
-], [
-    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' "$file"`
-	AS_IF([test "x$platform" != x], [
-	    eval "AS_CASE([\"\$target_os\"], [$platform*], [break])"
-	])
-	setup=
-    done
-    : ${setup:=Setup}
-])
-AC_SUBST(setup)
-
-rubylibprefix='${libdir}/${RUBY_BASE_NAME}'
-AC_ARG_WITH(rubylibprefix,
-	    AS_HELP_STRING([--with-rubylibprefix=DIR], [prefix for ruby libraries [[LIBDIR/RUBY_BASE_NAME]]]),
-	    [AS_IF([test "x$withval" = xno], [
-		AC_MSG_ERROR([No ruby, No libprefix])
-	    ])
-	    rubylibprefix="$withval"])
-AC_SUBST(rubylibprefix)
-
-AS_IF([test x"${exec_prefix}" != xNONE], [
-    RUBY_EXEC_PREFIX="$exec_prefix"
-], [test x"$prefix" != xNONE], [
-    RUBY_EXEC_PREFIX="$prefix"
-], [
-    RUBY_EXEC_PREFIX=$ac_default_prefix
-])
-pat=`echo "${RUBY_EXEC_PREFIX}" | tr -c '\012' .`'\(.*\)'
-for var in bindir libdir rubylibprefix; do
-    eval val='"$'$var'"'
-    AS_CASE(["$val"], ["${RUBY_EXEC_PREFIX}"*], [val='${exec_prefix}'"`expr \"$val\" : \"$pat\"`"])
-    eval $var='"$val"'
-done
-
-BTESTRUBY='$(MINIRUBY)'
-AS_IF([test x"$cross_compiling" = xyes], [
-  test x"$MINIRUBY" = x && MINIRUBY="${RUBY-$BASERUBY} -I`$CHDIR .; pwd` "-r'$(arch)-fake'
-  XRUBY_LIBDIR=`${RUBY-$BASERUBY} -rrbconfig -e ['puts RbConfig::CONFIG["libdir"]']`
-  XRUBY_RUBYLIBDIR=`${RUBY-$BASERUBY} -rrbconfig -e ['puts RbConfig::CONFIG["rubylibdir"]']`
-  XRUBY_RUBYHDRDIR=`${RUBY-$BASERUBY} -rrbconfig -e ['puts RbConfig::CONFIG["rubyhdrdir"]']`
-  AC_SUBST(XRUBY_LIBDIR)
-  AC_SUBST(XRUBY_RUBYLIBDIR)
-  AC_SUBST(XRUBY_RUBYHDRDIR)
-  PREP='$(arch)-fake.rb'
-  RUNRUBY_COMMAND='$(MINIRUBY) -I`cd $(srcdir)/lib; pwd`'
-  RUNRUBY='$(RUNRUBY_COMMAND)'
-  XRUBY='$(MINIRUBY)'
-  BOOTSTRAPRUBY='$(BASERUBY)'
-  TEST_RUNNABLE=no
-  CROSS_COMPILING=yes
-], [
-  MINIRUBY='./miniruby$(EXEEXT) -I$(srcdir)/lib -I.'
-  MINIRUBY="$MINIRUBY"' -I$(EXTOUT)/common'
-  PREP='miniruby$(EXEEXT)'
-  RUNRUBY_COMMAND='$(MINIRUBY) $(srcdir)/tool/runruby.rb --extout=$(EXTOUT) $(RUNRUBYOPT)'
-  RUNRUBY='$(RUNRUBY_COMMAND) --'
-  XRUBY='$(RUNRUBY)'
-  BOOTSTRAPRUBY='$(MINIRUBY)'
-  TEST_RUNNABLE=yes
-  CROSS_COMPILING=no
-])
-AC_SUBST(TEST_RUNNABLE)
-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, [${EXTOUT=.ext}])
-
-])RSTMAKEFILE=""
-LIBRUBY_A='lib$(RUBY_SO_NAME)-static.a'
-LIBRUBY='$(LIBRUBY_A)'
-LIBRUBYARG_STATIC='-l$(RUBY_SO_NAME)-static'
-LIBRUBYARG='$(LIBRUBYARG_STATIC)'
-SOLIBS=
-
-AS_CASE(["$target_os"],
-  [cygwin*|mingw*|haiku*|darwin*], [
-    : ${DLDLIBS=""}
-    ],
-  [
-    DLDLIBS="$DLDLIBS -lc"
-    ])
-
-AC_ARG_ENABLE(multiarch,
-	      AS_HELP_STRING([--enable-multiarch], [enable multiarch compatible directories]),
-	      [multiarch=], [unset multiarch])
-AS_IF([test ${multiarch+set}], [
-   AC_DEFINE(ENABLE_MULTIARCH)
-])
-
-archlibdir='${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],
-	[
-	    AS_CASE(["$target_os"],
-	    [darwin*], [
-	        RUBY_SO_NAME='$(RUBY_BASE_NAME).$(RUBY_PROGRAM_VERSION)'
-	    ],
-	    [cygwin*], [
-	        RUBY_SO_NAME='$(RUBY_BASE_NAME)$(MAJOR)$(MINOR)0'
-	    ],
-	    [mingw*], [
-		RUBY_SO_NAME="${rb_cv_msvcrt}"'-$(RUBY_BASE_NAME)$(MAJOR)$(MINOR)0'
-		AS_IF([test x"${target_cpu}" != xi386], [
-		    RUBY_SO_NAME="${target_cpu}-${RUBY_SO_NAME}"
-		])
-	    ],
-	    [RUBY_SO_NAME='$(RUBY_BASE_NAME)'])
-	])
-
-LIBRUBY_LDSHARED=$LDSHARED
-LIBRUBY_DLDFLAGS=$DLDFLAGS
-LIBRUBY_SO='lib$(RUBY_SO_NAME).$(SOEXT).$(RUBY_PROGRAM_VERSION)'
-LIBRUBY_SONAME='lib$(RUBY_SO_NAME).$(SOEXT).$(RUBY_API_VERSION)'
-LIBRUBY_ALIASES='lib$(RUBY_SO_NAME).$(SOEXT)'
-ENABLE_SHARED=no
-
-AC_ARG_ENABLE(shared,
-       AS_HELP_STRING([--enable-shared], [build a shared library for Ruby]),
-       [enable_shared=$enableval])
-libprefix=${multiarch+'$(archlibdir)'}${multiarch-'$(libdir)'}
-LIBRUBY_RELATIVE=${load_relative-no}
-AS_CASE("$enable_shared", [yes], [
-  LIBRUBY='$(LIBRUBY_SO)'
-  LIBRUBYARG_SHARED='-l$(RUBY_SO_NAME)'
-  LIBRUBYARG='$(LIBRUBYARG_SHARED)'
-  LIBRUBY_RELATIVE=no
-  test -z "$CCDLFLAGS" || CFLAGS="$CFLAGS $CCDLFLAGS"
-  ENABLE_SHARED=yes
-  AS_IF([test "$rb_cv_binary_elf" = yes], [
-    SOLIBS='$(LIBS)'
-  ])
-
-  # libdir can be overridden in config.site file (on OpenSUSE at least).
-  libdir_basename=lib
-  AS_IF([test "$bindir" = '${exec_prefix}/bin'], [
-    AS_CASE(["$libdir"], ['${exec_prefix}/'*], [libdir_basename=`basename "$libdir"`])
-  ])
-  AC_DEFINE_UNQUOTED(LIBDIR_BASENAME, ["${libdir_basename}"])
-  libdir_basename="${libdir_basename}"${multiarch+'/${arch}'}
-
-  AS_CASE(["$target_os"],
-    [freebsd*|dragonfly*], [],
-    [
-     AS_IF([test "$GCC" = yes], [
-       RUBY_TRY_LDFLAGS([${linker_flag}--no-undefined], [no_undefined=yes], [no_undefined=no])
-       AS_IF([test "no_undefined" = yes], [
-	  RUBY_APPEND_OPTION(EXTLDFLAGS, [${linker_flag}--no-undefined])
-       ])
-     ])
-    ])
-
-  AS_CASE(["$target_os"],
-    [sunos4*], [
-	LIBRUBY_ALIASES='$(LIBRUBY_SONAME) lib$(RUBY_SO_NAME).$(SOEXT)'
-	],
-    [linux* | gnu* | k*bsd*-gnu | atheos* | kopensolaris*-gnu | haiku*], [
-	RUBY_APPEND_OPTIONS(LIBRUBY_DLDFLAGS, ['-Wl,-soname,$(LIBRUBY_SONAME)' "$LDFLAGS_OPTDIR"])
-	LIBRUBY_ALIASES='$(LIBRUBY_SONAME) lib$(RUBY_SO_NAME).$(SOEXT)'
-	AS_IF([test "$load_relative" = yes], [
-	    libprefix="'\$\${ORIGIN}/../${libdir_basename}'"
-	    LIBRUBY_RPATHFLAGS="-Wl,-rpath,${libprefix}"
-	    LIBRUBY_RELATIVE=yes
-	])
-	],
-    [freebsd*|dragonfly*], [
-	SOLIBS='$(LIBS)'
-	LIBRUBY_SO='lib$(RUBY_SO_NAME).$(SOEXT).$(MAJOR)$(MINOR)'
-	LIBRUBY_SONAME='$(LIBRUBY_SO)'
-	AS_IF([test "$rb_cv_binary_elf" != "yes" ], [
-	    LIBRUBY_SO="$LIBRUBY_SO.\$(TEENY)"
-	    LIBRUBY_ALIASES=''
-	])
-	],
-    [netbsd*], [
-	SOLIBS='$(LIBS)'
-	LIBRUBY_SONAME='lib$(RUBY_SO_NAME).$(SOEXT).$(MAJOR)$(MINOR)'
-	LIBRUBY_SO="${LIBRUBY_SONAME}"'.$(TEENY)'
-	RUBY_APPEND_OPTIONS(LIBRUBY_DLDFLAGS, ['-Wl,-soname,$(LIBRUBY_SONAME)' "$LDFLAGS_OPTDIR"])
-	AS_IF([test "$rb_cv_binary_elf" = yes], [ # ELF platforms
-	   LIBRUBY_ALIASES='$(LIBRUBY_SONAME) lib$(RUBY_SO_NAME).$(SOEXT)'
-	], [	# a.out platforms
-	   LIBRUBY_ALIASES=""
-	])
-	],
-    [openbsd*|mirbsd*], [
-	SOLIBS='$(LIBS)'
-	LIBRUBY_SO='lib$(RUBY_SO_NAME).$(SOEXT).$(MAJOR).'`expr ${MINOR} \* 10 + ${TEENY}`
-	],
-    [solaris*], [
-	SOLIBS='$(LIBS)'
-	LIBRUBY_SO='lib$(RUBY_SO_NAME).$(SOEXT).$(MAJOR)'
-	LIBRUBY_SONAME='lib$(RUBY_SO_NAME).$(SOEXT).$(RUBY_PROGRAM_VERSION)'
-	LIBRUBY_ALIASES='$(LIBRUBY_SONAME) lib$(RUBY_SO_NAME).$(SOEXT)'
-	AS_IF([test "$GCC" = yes], [
-	    LIBRUBY_DLDFLAGS="$DLDFLAGS "'-Wl,-h,$(@F)'
-	], [
-	    LIBRUBY_DLDFLAGS="$DLDFLAGS "'-h $(@F)'
-	])
-	XLDFLAGS="$XLDFLAGS "'-R${libdir}'
-	],
-    [hpux*], [
-	XLDFLAGS="$XLDFLAGS "'-Wl,+s,+b,$(libdir)'
-	LIBRUBY_ALIASES='$(LIBRUBY_SONAME) lib$(RUBY_SO_NAME).$(SOEXT)'
-	],
-    [aix*], [
-	RUBY_APPEND_OPTIONS(LIBRUBY_DLDFLAGS, ["${linker_flag}-bnoentry" "$XLDFLAGS" "$LDFLAGS_OPTDIR"])
-	LIBRUBYARG_SHARED='-L${libdir} -l${RUBY_SO_NAME}'
-	SOLIBS='-lm -lc'
-	],
-    [darwin*], [
-	LIBRUBY_LDSHARED='$(CC) -dynamiclib'
-	AS_IF([test "$load_relative" = yes], [
-	    libprefix="@executable_path/../${libdir_basename}"
-	    LIBRUBY_RELATIVE=yes
-	])
-	LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS -install_name ${libprefix}"'/$(LIBRUBY_SONAME)'
-	LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-compatibility_version $(RUBY_API_VERSION)'
-	LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-current_version $(RUBY_PROGRAM_VERSION)'
-	AS_IF([test "$visibility_option" = ld], [
-	    LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-Wl,-unexported_symbol,_Init_*'
-	    LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-Wl,-unexported_symbol,_ruby_static_id_*'
-	    LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-Wl,-unexported_symbol,*_threadptr_*'
-	])
-	LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "' $(XLDFLAGS)'
-	LIBRUBY_SO='lib$(RUBY_SO_NAME).$(SOEXT)'
-	LIBRUBY_SONAME='lib$(RUBY_BASE_NAME).$(RUBY_API_VERSION).$(SOEXT)'
-	LIBRUBY_ALIASES='$(LIBRUBY_SONAME) lib$(RUBY_INSTALL_NAME).$(SOEXT)'
-	SOLIBS='$(LIBS)'
-	],
-    [interix*], [
-	LIBRUBYARG_SHARED='-L. -L${libdir} -l$(RUBY_SO_NAME)'
-	],
-    [mingw*|cygwin*|mswin*], [
-	LIBRUBY_RELATIVE=yes
-	])
-], [
-  LIBRUBYARG_SHARED=
-
-  # enable PIE if possible
-  AC_ARG_ENABLE(pie,
-          AS_HELP_STRING([--disable-pie], [disable PIE feature]),
-          [pie=$enableval], [pie=])
-  AS_IF([test "$GCC" = yes -a -z "$EXTSTATIC" -a "x$pie" != xno], [
-    RUBY_TRY_CFLAGS(-fPIE, [pie=yes], [pie=no])
-    AS_IF([test "$pie" = yes], [
-      # Use -fPIE when testing -pie.  RUBY_TRY_LDFLAGS sets
-      # $save_CFLAGS internally, so set other name here.
-      save_CFLAGS_before_pie="$CFLAGS"
-      CFLAGS="$CFLAGS -fPIE"
-
-      # gcc need -pie but clang need -Wl,-pie.
-      for pie in -pie -Wl,-pie; do
-	RUBY_TRY_LDFLAGS([$pie], [], [pie=])
-	AS_IF([test "x$pie" != x], [
-	  RUBY_APPEND_OPTION(XCFLAGS, -fPIE)
-	  RUBY_APPEND_OPTION(XLDFLAGS, $pie)
-	  break
-	])
-      done
-      CFLAGS="$save_CFLAGS_before_pie"
-    ])
-  ])
-])
-AS_IF([test "$enable_rpath" = yes], [
-    test -z "$LIBRUBY_RPATHFLAGS" || LIBRUBY_RPATHFLAGS="$LIBRUBY_RPATHFLAGS "
-    rpathflag="${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"
-])
-AC_SUBST(LIBRUBY_RELATIVE)
-
-LDFLAGS="-L. $LDFLAGS"
-AC_SUBST(ARCHFILE)
-
-AS_IF([test "$EXEEXT" = .exe], [
-    EXECUTABLE_EXTS='".exe",".com",".cmd",".bat"'
-    AC_DEFINE_UNQUOTED(EXECUTABLE_EXTS, $EXECUTABLE_EXTS)
-    EXECUTABLE_EXTS=`echo $EXECUTABLE_EXTS | tr -d '"' | tr , ' '`
-    AC_SUBST(EXECUTABLE_EXTS)
-])
-
-AS_CASE("$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="$PREP"' exe/$(PROGRAM)'
-	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]),
-        [enable_dtrace=$enableval], [enable_dtrace=auto])
-
-LIBRUBY_A_OBJS='$(OBJS)'
-DTRACE_REBUILD=
-AS_CASE(["${enable_dtrace}"],
-[yes|auto], [
-    RUBY_DTRACE_AVAILABLE()
-], [
-    rb_cv_dtrace_available=no
-])
-AS_IF([test "${enable_dtrace}" = yes], [dnl
-    AS_IF([test -z "$DTRACE"], [dnl
-	AC_MSG_ERROR([dtrace(1) is missing])
-    ], [test "$cross_compiling" = yes], [dnl
-	AC_MSG_ERROR([--enable-dtrace, however, cross compiling])
-    ], [test "${rb_cv_dtrace_available}" = "no"], [dnl
-       AC_MSG_ERROR([--enable-dtrace, however, USDT is not available])
-    ])
-])
-AS_CASE([$rb_cv_dtrace_available],
-[yes*], [dnl
-    RUBY_DTRACE_POSTPROCESS()
-    AS_IF([test "$rb_cv_prog_dtrace_g" != no], [dnl
-	DTRACE_OBJ='probes.$(OBJEXT)'
-    ])
-    AS_IF([test "$rb_cv_prog_dtrace_g" = rebuild], [dnl
-	DTRACE_REBUILD=yes
-	LIBRUBY_A_OBJS='$(DTRACE_GLOMMED_OBJ)'
-    ])
-    AS_CASE("${target_os}", [freebsd*], [dnl
-        # FreeBSD's dtrace requires libelf
-        LIBS="-lelf $LIBS"
-    ])
-    DTRACE_EXT=d
-], [dnl
-    enable_dtrace=no
-    DTRACE_EXT=dmyh
-])
-AC_SUBST(DTRACE_EXT)
-AC_SUBST(DTRACE_OBJ)
-AC_SUBST(DTRACE_REBUILD)
-AC_SUBST(DTRACE_OPT)
-AC_SUBST(LIBRUBY_A_OBJS)
-
-AC_ARG_ENABLE(gcov,
-       AS_HELP_STRING([--enable-gcov], [enable coverage measurement by gcov]),
-       [gcov=yes])
-AS_IF([test x"$gcov" = xyes], [
-    CFLAGS="$CFLAGS -coverage"
-    LDFLAGS="$LDFLAGS -coverage"
-])
-
-RUBY_SETJMP_TYPE
-}
-{ # build section
-
-dnl build rdoc index if requested
-RDOCTARGET=""
-CAPITARGET=""
-AC_ARG_ENABLE(install-doc,
-       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=$enableval], [install_capi=no])
-
-AS_IF([test "$install_doc" != no], [
-    AS_IF([test "$install_rdoc" != no], [
-	RDOCTARGET="rdoc"
-    ], [
-	RDOCTARGET="nodoc"
-    ])
-    AS_IF([test "$install_capi" != no -a -n "$DOXYGEN"], [
-	CAPITARGET="capi"
-    ], [
-	CAPITARGET="nodoc"
-    ])
-], [
-    RDOCTARGET="nodoc"
-    CAPITARGET="nodoc"
-])
-
-AC_SUBST(RDOCTARGET)
-AC_SUBST(CAPITARGET)
-
-AS_CASE(["$RDOCTARGET:$CAPITARGET"],[nodoc:nodoc],[INSTALLDOC=nodoc],[INSTALLDOC=all])
-AC_SUBST(INSTALLDOC)
-
-AC_ARG_ENABLE(install-static-library,
-	AS_HELP_STRING([--disable-install-static-library], [do not install static ruby library]),
-	[INSTALL_STATIC_LIBRARY=$enableval],
-	AS_IF([test x"$enable_shared" = xyes],
-	    [INSTALL_STATIC_LIBRARY=no],
-	    [INSTALL_STATIC_LIBRARY=yes]))
-AC_SUBST(INSTALL_STATIC_LIBRARY)
-
-AS_IF([test "$rb_with_pthread" = "yes"], [
-    THREAD_MODEL=pthread
-])
-AC_CACHE_CHECK([for prefix of external symbols], rb_cv_symbol_prefix, [
-    AC_TRY_COMPILE([extern void conftest_external(void) {}], [], [
-	rb_cv_symbol_prefix=`$NM conftest.$ac_objext |
-			     sed -n ['/.*T[ 	]\([^ 	]*\)conftest_external.*/!d;s//\1/p;q']`
-	],
-	[rb_cv_symbol_prefix=''])
-    test -n "$rb_cv_symbol_prefix" || rb_cv_symbol_prefix=NONE
-])
-SYMBOL_PREFIX="$rb_cv_symbol_prefix"
-test "x$SYMBOL_PREFIX" = xNONE && SYMBOL_PREFIX=''
-DLNOBJ=dln.o
-AC_ARG_ENABLE(dln,
-	      AC_HELP_STRING([--disable-dln], [disable dynamic link feature]),
-	      [test "$enableval" = yes || DLNOBJ=dmydln.o])
-AC_SUBST(DLNOBJ)
-MINIDLNOBJ=dmydln.o
-
-AS_CASE(["$target_os"],
-    [linux*], [
-	],
-    [netbsd*], [
-	RUBY_APPEND_OPTION(CFLAGS, -pipe)
-	],
-    [darwin*], [
-	RUBY_APPEND_OPTION(CFLAGS, -pipe)
-	RUBY_APPEND_OPTION(XLDFLAGS, [-framework Foundation])
-	RUBY_APPEND_OPTION(LIBRUBYARG_STATIC, [-framework Foundation])
-	],
-    [osf*], [
-	AS_IF([test "$GCC" != "yes" ], [
-	  # compile something small: taint.c is fine for this.
-	  # the main point is the '-v' flag of 'cc'.
-	  AS_CASE(["`cc -v -I. -c main.c -o /tmp/main.o 2>&1`"],
-	  [*/gemc_cc*], [   # we have the new DEC GEM CC
-                        CFLAGS="$CFLAGS -oldc"
-                        ],
-          [            # we have the old MIPS CC
-                        ])
-	  # cleanup
-	  rm -f /tmp/main.o
-	  CFLAGS="$CFLAGS -std"
-	])
-	],
-    [cygwin*|mingw*], [
-	LIBRUBY_DLDFLAGS="${DLDFLAGS}"' -Wl,--out-implib=$(LIBRUBY)'
-	AS_CASE(["$target_os"],
-	[cygwin*], [
-	    AS_IF([test x"$enable_shared" = xyes], [
-		LIBRUBY_SO='cyg$(RUBY_SO_NAME)'.dll
-		LIBRUBY_DLDFLAGS="${LIBRUBY_DLDFLAGS}"' $(RUBYDEF)'
-	    ])
-	    ],
-	[mingw*], [
-	    AS_IF([test x"$enable_shared" = xyes], [
-		LIBRUBY_SO='$(RUBY_SO_NAME)'.dll
-		LIBRUBY_DLDFLAGS="${LIBRUBY_DLDFLAGS}"' $(RUBYDEF)'
-	    ])
-	    EXPORT_PREFIX=' '
-	    DLDFLAGS="${DLDFLAGS}"' $(DEFFILE)'
-	    AC_LIBOBJ([win32/win32])
-	    AC_LIBOBJ([win32/file])
-	    COMMON_LIBS=m
-#	    COMMON_MACROS="WIN32_LEAN_AND_MEAN="
-	    COMMON_HEADERS="winsock2.h windows.h"
-	    THREAD_MODEL=win32
-	    PLATFORM_DIR=win32
-	    ])
-	LIBRUBY_ALIASES=''
-	FIRSTMAKEFILE=GNUmakefile:cygwin/GNUmakefile.in
-	SOLIBS='$(LIBS)'
-	AS_IF([test x"$enable_shared" = xyes], [
-	    LIBRUBY='lib$(RUBY_SO_NAME).dll.a'
-	], [
-	    LIBRUBY_SO=dummy
-	    LIBRUBY='lib$(RUBY_SO_NAME).a'
-	    LIBRUBYARG='-l$(RUBY_SO_NAME)'
-	])
-	],
-    [hpux*], [
-	AS_CASE(["$YACC"],[*yacc*], [
-	    XCFLAGS="$XCFLAGS -DYYMAXDEPTH=300"
-	    YACC="$YACC -Nl40000 -Nm40000"
-	])
-])
-
-MINIOBJS="$MINIDLNOBJ"
-
-AS_CASE(["$THREAD_MODEL"],
-[pthread], [AC_CHECK_HEADERS(pthread.h)],
-[win32],   [],
-[""],      [AC_MSG_ERROR(thread model is missing)],
-           [AC_MSG_ERROR(unknown thread model $THREAD_MODEL)])
-
-AC_ARG_ENABLE(debug-env,
-       AS_HELP_STRING([--enable-debug-env], [enable RUBY_DEBUG environment variable]),
-       [AC_SUBST(ENABLE_DEBUG_ENV, yes)])
-
-AS_CASE(["$FIRSTMAKEFILE"], [*GNUmakefile:*], [gnumake=yes], [
-    AC_MSG_CHECKING([if ${MAKE-make} is GNU make])
-    mkdir conftest.dir
-    echo "all:; @echo yes" > conftest.dir/GNUmakefile
-    echo "all:; @echo no" > conftest.dir/Makefile
-    gnumake=`(cd conftest.dir; ${MAKE-make})`
-    rm -fr conftest.dir
-    AS_CASE(["$gnumake"],
-    [*yes*], [
-	FIRSTMAKEFILE=GNUmakefile:template/GNUmakefile.in
-	gnumake=yes],
-    [
-	gnumake=no])
-    AC_MSG_RESULT($gnumake)
-])
-AS_IF([test "$gnumake" = yes], [ NULLCMD=: ], [
-    AC_MSG_CHECKING([for safe null command for ${MAKE-make}])
-    mkdir conftest.dir
-    NULLCMD=
-    for cmd in : true; do
-	echo 'A=1' > conftest.dir/Makefile
-	echo 'B=$(A:1=@'$cmd')' >> conftest.dir/Makefile
-	echo 'all:; $B 1 2 3 4 5 6 7 8 9' >> conftest.dir/Makefile
-	AS_IF([(cd conftest.dir; ${MAKE-make} >/dev/null 2>/dev/null)], [
-	    NULLCMD=$cmd
-	    break
-	])
-    done
-    rm -fr conftest.dir
-    AS_IF([test -z "$NULLCMD"], [
-	AC_MSG_ERROR(no candidate for safe null command)
-    ])
-    AC_MSG_RESULT($NULLCMD)
-])
-AC_SUBST(NULLCMD)
-
-AS_IF([test "${universal_binary-no}" = yes ], [
-    AC_CACHE_CHECK([for architecture macros], rb_cv_architecture_macros, [
-    mv confdefs.h confdefs1.h
-    : > confdefs.h
-    AC_TRY_COMPILE([@%:@if defined __`echo ${universal_archnames} |
-    sed 's/=[^ ]*//g;s/ /__ || defined __/g'`__
-@%:@else
-@%:@error
->>>>>><<<<<<
-@%:@endif], [],
-[
-    rb_cv_architecture_macros=yes
-    mv -f confdefs1.h confdefs.h
-], [
-    rb_cv_architecture_macros=no
-    archflagpat=`eval echo '"'"${ARCH_FLAG}"'"' | sed 's/[[][|.*]]/\\&/g'`
-    new_cflags=`echo "$CFLAGS" | sed "s|$archflagpat"'||'`
-    for archs in ${universal_archnames}; do
-	cpu=${archs@%:@*=}
-	archs=${archs%=*}
-	CFLAGS="$new_cflags -arch $archs"
-	archs="__${archs}__"
-	AC_MSG_CHECKING([for macro ${archs} on ${cpu}])
-	AC_TRY_COMPILE([@%:@ifndef ${archs}
-@%:@error
-@%:@endif], [], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no])])
-    done
-    mv -f confdefs1.h confdefs.h
-    AC_MSG_ERROR([failed])
-    ])])
-    AC_CACHE_CHECK(whether __ARCHITECTURE__ is available, rb_cv_architecture_available,
-	AC_TRY_COMPILE([@%:@include <stdio.h>
-		const char arch[[]] = __ARCHITECTURE__;], [puts(arch);],
-		[rb_cv_architecture_available=yes], [rb_cv_architecture_available=no]))
-])
-
-CPPFLAGS="$CPPFLAGS "'$(DEFS)'
-test -z "$CPPFLAGS" || CPPFLAGS="$CPPFLAGS "; CPPFLAGS="$CPPFLAGS"'${cppflags}'
-AS_IF([test -n "${cflags+set}"], [
-    cflagspat=`eval echo '"'"${cflags}"'"' | sed 's/[[][|.*]]/\\&/g;s/^  */ /;s/^  *$/ /'`
-    CFLAGS=`echo " $CFLAGS " | sed "s|$cflagspat"'|${cflags}|;s/^ *//;s/ *$//'`
-])
-AS_IF([test -n "${cxxflags+set}"], [
-    cxxflagspat=`eval echo '"'"${cxxflags}"'"' | sed 's/[[][|.*]]/\\&/g;s/^  */ /;s/^  *$/ /'`
-    CXXFLAGS=`echo " $CXXFLAGS " | sed "s|$cxxflagspat"'|${cxxflags}|;s/^ *//;s/ *$//'`
-])
-AS_IF([test "${ARCH_FLAG}"], [
-    archflagpat=`eval echo '"'"${ARCH_FLAG}"'"' | sed 's/[[][|.*]]/\\&/g'`
-    CFLAGS=`echo "$CFLAGS" | sed "s| *$archflagpat"'||'`
-    CXXFLAGS=`echo "$CXXFLAGS" | sed "s| *$archflagpat"'||'`
-    LDFLAGS=`echo "$LDFLAGS" | sed "s| *$archflagpat"'||'`
-])
-warnflags="$rb_cv_warnflags"
-AC_SUBST(cppflags)dnl
-AC_SUBST(cflags, ["${orig_cflags:+$orig_cflags }"'${optflags} ${debugflags} ${warnflags}'])dnl
-AC_SUBST(cxxflags, ["${orig_cxxflags:+$orig_cxxflags }"'${optflags} ${debugflags} ${warnflags}'])dnl
-AC_SUBST(optflags)dnl
-AC_SUBST(debugflags)dnl
-AC_SUBST(warnflags)dnl
-AC_SUBST(strict_warnflags)dnl
-AC_SUBST(XCFLAGS)dnl
-AC_SUBST(XLDFLAGS)dnl
-AC_SUBST(EXTLDFLAGS)dnl
-AC_SUBST(EXTDLDFLAGS)dnl
-AC_SUBST(LIBRUBY_LDSHARED)
-AC_SUBST(LIBRUBY_DLDFLAGS)
-AC_SUBST(RUBY_INSTALL_NAME)
-AC_SUBST(rubyw_install_name)
-AC_SUBST(RUBYW_INSTALL_NAME)
-AC_SUBST(RUBY_SO_NAME)
-AC_SUBST(LIBRUBY_A)
-AC_SUBST(LIBRUBY_SO)
-AC_SUBST(LIBRUBY_SONAME)
-AC_SUBST(LIBRUBY_ALIASES)
-AC_SUBST(LIBRUBY)
-AC_SUBST(LIBRUBYARG)
-AC_SUBST(LIBRUBYARG_STATIC)
-AC_SUBST(LIBRUBYARG_SHARED)
-AC_SUBST(SOLIBS)
-AC_SUBST(DLDLIBS)
-AC_SUBST(ENABLE_SHARED)
-AC_SUBST(MAINLIBS)
-AC_SUBST(COMMON_LIBS)
-AC_SUBST(COMMON_MACROS)
-AC_SUBST(COMMON_HEADERS)
-AC_SUBST(EXPORT_PREFIX)
-AC_SUBST(SYMBOL_PREFIX)
-AC_SUBST(MINIOBJS)
-AC_SUBST(THREAD_MODEL)
-AC_SUBST(PLATFORM_DIR)
-
-firstmf=`echo $FIRSTMAKEFILE | sed 's/:.*//'`
-firsttmpl=`echo $FIRSTMAKEFILE | sed 's/.*://'`
-MAKEFILES="Makefile $firstmf"
-MAKEFILES="`echo $MAKEFILES`"
-AC_SUBST(MAKEFILES)
-
-ri_prefix=
-test "$program_prefix" != NONE &&
-  ri_prefix=$program_prefix
-
-ri_suffix=
-test "$program_suffix" != NONE &&
-  ri_suffix=$program_suffix
-
-RUBY_INSTALL_NAME="${ri_prefix}"'$(RUBY_BASE_NAME)'"${ri_suffix}"
-AS_CASE(["$target_os"],
-  [cygwin*|mingw*], [
-    RUBYW_INSTALL_NAME="${ri_prefix}"'$(RUBYW_BASE_NAME)'"${ri_suffix}"
-    rubyw_install_name='$(RUBYW_INSTALL_NAME)'
-    ])
-
-rubylibdir='${rubylibprefix}/${ruby_version}'
-rubyarchdir=${multiarch+'${rubyarchprefix}/${ruby_version}'}${multiarch-'${rubylibdir}/${arch}'}
-
-rubyarchprefix=${multiarch+'${archlibdir}/${RUBY_BASE_NAME}'}${multiarch-'${rubylibprefix}/${arch}'}
-AC_ARG_WITH(rubyarchprefix,
-	    AS_HELP_STRING([--with-rubyarchprefix=DIR],
-			   [prefix for architecture dependent ruby libraries [[RUBYLIBPREFIX/ARCH]]]),
-	    [rubyarchprefix="$withval"])
-AC_SUBST(rubyarchprefix)
-
-rubysitearchprefix=${multiarch+'${sitearchlibdir}/${RUBY_BASE_NAME}'}${multiarch-'${rubylibprefix}/${sitearch}'}
-AC_ARG_WITH(rubysitearchprefix,
-	    AS_HELP_STRING([--with-rubysitearchprefix=DIR],
-			   [prefix for architecture dependent site libraries [[RUBYLIBPREFIX/SITEARCH]]]),
-	    [rubysitearchprefix="$withval"])
-AC_SUBST(rubysitearchprefix)
-
-RI_BASE_NAME=`echo ${RUBY_BASE_NAME} | sed 's/ruby/ri/'`
-ridir='${datarootdir}/${RI_BASE_NAME}'
-AC_ARG_WITH(ridir,
-	    AS_HELP_STRING([--with-ridir=DIR], [ri documentation [[DATAROOTDIR/ri]]]),
-	    [ridir=$withval])
-AC_SUBST(ridir)
-AC_SUBST(RI_BASE_NAME)
-
-AC_ARG_WITH(ruby-version,
-	    AS_HELP_STRING([--with-ruby-version=STR], [ruby version string for version specific directories [[full]] (full|minor|STR)]),
-            [ruby_version=$withval],
-            [ruby_version=full])
-unset RUBY_LIB_VERSION
-unset RUBY_LIB_VERSION_STYLE
-AS_CASE(["$ruby_version"],
-  [full],  [RUBY_LIB_VERSION_STYLE='3	/* full */'],
-  [minor], [RUBY_LIB_VERSION_STYLE='2	/* minor */'])
-AS_IF([test ${RUBY_LIB_VERSION_STYLE+set}], [
-    {
-    echo "#define RUBY_LIB_VERSION_STYLE $RUBY_LIB_VERSION_STYLE"
-    echo '#define STRINGIZE(x) x'
-    test -f revision.h -o -f "${srcdir}/revision.h" || echo '#define RUBY_REVISION 0'
-    echo '#include "version.h"'
-    echo 'ruby_version=RUBY_LIB_VERSION'
-    } > conftest.c
-    ruby_version="`$CPP -I. -I"${srcdir}" -I"${srcdir}/include" conftest.c | sed '/^ruby_version=/!d;s/ //g'`"
-    eval $ruby_version
-], [test -z "${ruby_version}"], [
-    AC_MSG_ERROR([No ruby version, No place for bundled libraries])
-], [
-    RUBY_LIB_VERSION="${ruby_version}"
-])
-AC_SUBST(RUBY_LIB_VERSION_STYLE)
-AC_SUBST(RUBY_LIB_VERSION)
-
-AC_ARG_WITH(sitedir,
-	    AS_HELP_STRING([--with-sitedir=DIR], [site libraries in DIR [[RUBY_LIB_PREFIX/site_ruby]], "no" to disable site directory]),
-            [sitedir=$withval],
-            [sitedir='${rubylibprefix}/site_ruby'])
-sitelibdir='${sitedir}/${ruby_version}'
-
-AC_ARG_WITH(sitearchdir,
-	    AS_HELP_STRING([--with-sitearchdir=DIR],
-			   [architecture dependent site libraries in DIR [[SITEDIR/SITEARCH]], "no" to disable site directory]),
-            [sitearchdir=$withval],
-            [sitearchdir=${multiarch+'${rubysitearchprefix}/site_ruby/${ruby_version}'}${multiarch-'${sitelibdir}/${sitearch}'}])
-
-AC_ARG_WITH(vendordir,
-	    AS_HELP_STRING([--with-vendordir=DIR], [vendor libraries in DIR [[RUBY_LIB_PREFIX/vendor_ruby]], "no" to disable vendor directory]),
-            [vendordir=$withval],
-            [vendordir='${rubylibprefix}/vendor_ruby'])
-vendorlibdir='${vendordir}/${ruby_version}'
-
-AC_ARG_WITH(vendorarchdir,
-	    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}/${sitearch}'}])
-
-AS_IF([test "${LOAD_RELATIVE+set}"], [
-    AC_DEFINE_UNQUOTED(LOAD_RELATIVE, $LOAD_RELATIVE)
-    RUBY_EXEC_PREFIX=''
-])
-
-AC_SUBST(RUBY_EXEC_PREFIX)
-
-AC_SUBST(libdirname, ${multiarch+arch}libdir)
-AC_SUBST(archlibdir)dnl
-AC_SUBST(sitearchlibdir)dnl
-AC_SUBST(archincludedir)dnl
-AC_SUBST(sitearchincludedir)dnl
-AC_SUBST(arch)dnl
-AC_SUBST(sitearch)dnl
-AC_SUBST(ruby_version)dnl
-AC_SUBST(rubylibdir)dnl
-AC_SUBST(rubyarchdir)dnl
-AC_SUBST(sitedir)dnl
-AC_SUBST(sitelibdir)dnl
-AC_SUBST(sitearchdir)dnl
-AC_SUBST(vendordir)dnl
-AC_SUBST(vendorlibdir)dnl
-AC_SUBST(vendorarchdir)dnl
-
-AC_SUBST(CONFIGURE, "`echo $0 | sed 's|.*/||'`")dnl
-AC_SUBST(configure_args, "`echo "${ac_configure_args}" | sed 's/\\$/$$/g'`")dnl
-
-AS_IF([test "${universal_binary-no}" = yes ], [
-    arch="universal-${target_os}"
-    AS_IF([test "${rb_cv_architecture_available}" = yes], [
-	AC_DEFINE_UNQUOTED(RUBY_PLATFORM_CPU, __ARCHITECTURE__)
-    ], [
-	for archs in ${universal_archnames}; do
-	    cpu=`echo $archs | sed 's/.*=//'`
-	    archs=`echo $archs | sed 's/=.*//'`
-	    RUBY_DEFINE_IF([defined __${archs}__], RUBY_PLATFORM_CPU, ["${cpu}"])
-	done
-    ])
-    ints='long int short'
-    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}")
-    AC_DEFINE_UNQUOTED(RUBY_ARCH, "universal-"RUBY_PLATFORM_OS)
-    AC_DEFINE_UNQUOTED(RUBY_PLATFORM, "universal."RUBY_PLATFORM_CPU"-"RUBY_PLATFORM_OS)
-], [
-    arch="${target_cpu}-${target_os}"
-    AC_DEFINE_UNQUOTED(RUBY_PLATFORM, "$arch")
-])
-
-unset sitearch
-AS_CASE(["$target_os"],[mingw*],[sitearch="$target_cpu-$rb_cv_msvcrt"])
-: ${sitearch='${arch}'}
-
-AC_ARG_WITH(search-path,
-		AS_HELP_STRING([--with-search-path=DIR], [specify the additional search path]),
-		[search_path=$withval])
-AS_IF([test "$search_path" != ""], [
-    AC_SUBST(RUBY_SEARCH_PATH, $search_path)
-])
-
-AC_ARG_WITH(rubyhdrdir,
-	    AS_HELP_STRING([--with-rubyhdrdir=DIR], [core headers in DIR [[INCLUDEDIR/RUBY_BASE_NAME-RUBY_VERSION]]]),
-	    [rubyhdrdir=$withval],
-	    [rubyhdrdir='${includedir}/${RUBY_VERSION_NAME}'])
-
-AC_ARG_WITH(rubyarchhdrdir,
-	    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}'}])
-
-AC_ARG_WITH(sitehdrdir,
-	    AS_HELP_STRING([--with-sitehdrdir=DIR], [core site headers in DIR [[RUBYHDRDIR/site_ruby]]]),
-	    [sitehdrdir=$withval],
-	    [sitehdrdir='${rubyhdrdir}/site_ruby'])
-
-AC_ARG_WITH(sitearchhdrdir,
-	    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}'}])
-
-AC_ARG_WITH(vendorhdrdir,
-	    AS_HELP_STRING([--with-vendorhdrdir=DIR], [core vendor headers in DIR [[RUBYHDRDIR/vendor_ruby]]]),
-	    [vendorhdrdir=$withval],
-	    [vendorhdrdir='${rubyhdrdir}/vendor_ruby'])
-
-AC_ARG_WITH(vendorarchhdrdir,
-	    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}'}])
-
-AC_SUBST(rubyhdrdir)dnl
-AC_SUBST(sitehdrdir)dnl
-AC_SUBST(vendorhdrdir)dnl
-AC_SUBST(rubyarchhdrdir)dnl
-AC_SUBST(sitearchhdrdir)dnl
-AC_SUBST(vendorarchhdrdir)dnl
-
-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|man.gz|man.bz2|doc|doc.gz|doc.bz2], [MANTYPE=$withval],
-			[AC_MSG_ERROR(invalid man type: $withval)])
-		])
-AS_IF([test -z "$MANTYPE"], [
-	dnl Looks for nroff with -mdoc support.
-	AC_CACHE_VAL([ac_cv_path_NROFF], [
-		AC_PATH_PROGS_FEATURE_CHECK([NROFF],
-			[nroff awf mandoc],
-			[$ac_path_NROFF -mdoc ${srcdir}/man/ruby.1 \
-				>/dev/null 2>&1 &&
-				ac_cv_path_NROFF=$ac_path_NROFF \
-				ac_path_NROFF_found=:],
-			[], ["/usr/bin:/usr/ucb"]
-		)
-	])
-	AS_IF([test -n "$ac_cv_path_NROFF"], [
-		MANTYPE=doc
-	], [
-		MANTYPE=man
-	])
-])
-AC_SUBST(MANTYPE)
-
-AC_ARG_ENABLE(rubygems,
-	AS_HELP_STRING([--disable-rubygems], [disable rubygems by default]),
-	[enable_rubygems="$enableval"], [enable_rubygems=yes])
-AS_IF([test x"$enable_rubygems" = xno], [
-    AC_DEFINE(DISABLE_RUBYGEMS, 1)
-    USE_RUBYGEMS=NO
-], [
-    USE_RUBYGEMS=YES
-])
-AC_SUBST(USE_RUBYGEMS)
-
-arch_hdrdir="${EXTOUT}/include/${arch}/ruby"
-AS_MKDIR_P("${arch_hdrdir}")
-config_h="${arch_hdrdir}/config.h"
-guard=INCLUDE_RUBY_CONFIG_H
-{
-  echo "#ifndef $guard"
-  echo "#define $guard 1"
-  grep -v "^#define PACKAGE_" confdefs.h
-  echo "#endif /* $guard */"
-} | tr -d '\015' |
-(
-  AS_IF([test "x$CONFIGURE_TTY" = xyes], [color=--color], [color=])
-  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
-
-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 "`echo $e | sed 's/\.c$/.$(OBJEXT)/'`; done
-AC_SUBST(BUILTIN_ENCOBJS)
-
-BUILTIN_TRANSES=["`sed -n -e '/^BUILTIN_TRANSES[ 	]*=/{' \
-	-e s/// -e :l -e '/\\\\$/N' -e 's/\\\\\\n/ /' -e 't l' -e p \
-	-e '}' "${srcdir}/enc/Makefile.in"`"]
-BUILTIN_TRANSSRCS=
-BUILTIN_TRANSOBJS=
-for e in $BUILTIN_TRANSES; do
-  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)
-AS_MESSAGE([$PACKAGE library version = $ruby_version])
-
-AS_CASE([" $CPP "], [*" $CC "*], [CPP=`echo " $CPP " | sed "s| $CC |"' $(CC) |;s/^ *//;s/  *$//'`])
-
-AS_IF([test x"$firstmf" != x], [
-    AC_CONFIG_FILES($firstmf:$firsttmpl, [], [firstmf="$firstmf" firsttmpl="$firsttmpl"])
-])
-AC_CONFIG_FILES(Makefile, [
-    tmpmk=confmk$$.tmp
-    {
-	AS_IF([test ${VCS+set}], [
-	    :
-	], [svn info "$srcdir" > /dev/null 2>&1], [
-	    VCS='svn'
-	], [git_dir=`$GIT --work-tree="$srcdir" --git-dir="$srcdir/.git" rev-parse --git-dir 2>/dev/null`], [
-	    AS_IF([test -d "$git_dir/svn"], [
-		VCS='$(GIT) svn'
-	    ], [
-		VCS='$(GIT)'
-	    ])
-	], [
-	    VCS='echo cannot'
-	])
-	AS_CASE("$VCS",
-		[svn],          [VCSUP='$(VCS) up $(SVNUPOPTIONS)'],
-		['$(GIT) svn'], [VCSUP='$(VCS) rebase $(GITSVNREBASEOPTIONS)'],
-		['$(GIT)'|git], [VCSUP='$(VCS) pull $(GITPULLOPTIONS)'],
-		[VCSUP='$(VCS)'])
-	sed -n \
-	    -e '[/^@%:@define \(RUBY_RELEASE_[A-Z]*\) \([0-9][0-9]*\)/]{' \
-	    -e   's//\1 = \2/' \
-	    -e   '[s/ \([0-9]\)$/ 0\1/]' \
-	    -e   p \
-	    -e '}' "$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)'
-	AS_IF([test "$gnumake" != yes], [
-	    echo ['$(MKFILES): $(srcdir)/common.mk']
-	    sed ['s/{\$([^(){}]*)[^{}]*}//g'] ${srcdir}/common.mk
-	], [
-	    echo 'distclean-local::; @$(RM) GNUmakefile uncommon.mk'
-	])
-    } > $tmpmk && AS_IF([! grep '^ruby:' $tmpmk > /dev/null], [
-	AS_IF([test "${gnumake}" = yes], [
-	    tmpgmk=confgmk$$.tmp
-	    {
-		echo "include $tmpmk"
-		echo "-include uncommon.mk"
-	    } > $tmpgmk
-	], [
-	    tmpgmk=$tmpmk
-	]) &&
-	test -z "`${MAKE-make} -f $tmpgmk info-program | grep '^PROGRAM=ruby$'`" &&
-	echo 'ruby: $(PROGRAM);' >> $tmpmk
-	test "$tmpmk" = "$tmpgmk" || rm -f "$tmpgmk"
-    ]) && mv -f $tmpmk Makefile],
-[EXEEXT='$EXEEXT' gnumake='$gnumake' GIT='$GIT'])
-
-AC_ARG_WITH([ruby-pc],
-	    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,
-    [
-    AS_IF([sed ['s/\$(\([A-Za-z_][A-Za-z0-9_]*\))/${\1}/g;s/@[A-Za-z_][A-Za-z0-9_]*@//'] $ruby_pc > ruby.tmp.pc &&
-	{
-	    test -z "$PKG_CONFIG" ||
-	    PKG_CONFIG_PATH=. $PKG_CONFIG --print-errors ruby.tmp
-	}],
-    [
-	mv -f ruby.tmp.pc $ruby_pc
-    ], [
-	exit 1
-    ])
-    ],
-    [ruby_pc='$ruby_pc' PKG_CONFIG='$PKG_CONFIG'])
-
-AC_OUTPUT
-}
-}
-
-AS_IF([${FOLD+:} false], [], [
-AS_IF([test "`echo abcdefg hijklmno | fold -s -w10 | sed 1d`" = hijklmno], [FOLD="fold"], [FOLD=])
-])
-AS_REQUIRE_SHELL_FN([config_summary],
-    [AS_FUNCTION_DESCRIBE([config_summary], [NAME, VAL], [configuration summary])],
-    [AS_IF([test -z "$2"], [], [
-	AS_ECHO_N(["   * $1:                     "]) | dd bs=1 count=26 2>/dev/null
-	AS_IF([test "$FOLD"], [
-	    echo "$2" | fold -s -w50 |
-	    sed '1!s/^/                          /;$!s/$/\\/'
-	], [echo "$2"])
-    ])]
-)
-
-echo "---"
-echo "Configuration summary for $RUBY_BASE_NAME version $RUBY_PROGRAM_VERSION"
-echo ""
-config_summary "Installation prefix" "$prefix"
-config_summary "exec prefix"         "$exec_prefix"
-config_summary "arch"                "$arch"
-config_summary "site arch"           "$sitearch"
-config_summary "RUBY_BASE_NAME"      "$RUBY_BASE_NAME"
-config_summary "enable shared"       "$enable_shared"
-config_summary "ruby lib prefix"     "$rubylibprefix"
-config_summary "site libraries path" "$rubysitearchprefix"
-config_summary "vendor path"         "$vendordir"
-config_summary "target OS"           "$target_os"
-config_summary "compiler"            "$CC"
-config_summary "with pthread"        "$enable_pthread"
-config_summary "enable shared libs"  "$ENABLE_SHARED"
-config_summary "dynamic library ext" "$DLEXT"
-config_summary "CFLAGS"              "$cflags"
-config_summary "CPPFLAGS"            "$cppflags"
-config_summary "LDFLAGS"             "$LDFLAGS"
-config_summary "optflags"            "$optflags"
-config_summary "debugflags"          "$debugflags"
-config_summary "warnflags"           "$warnflags"
-config_summary "strip command"       "$STRIP"
-config_summary "install doc"         "$install_doc"
-config_summary "man page type"       "$MANTYPE"
-config_summary "search path"         "$search_path"
-config_summary "static-linked-ext"   ${EXTSTATIC:+"yes"}
-echo ""
-echo "---"
diff --git a/configure.in b/configure.in
new file mode 100644
index 0000000000..5d86e14bd0
--- /dev/null
+++ b/configure.in
@@ -0,0 +1,3909 @@
+dnl Process this file with autoconf to produce a configure script.
+AC_INIT()
+{
+AC_CONFIG_AUX_DIR(tool)
+
+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]$2))])
+
+AC_DISABLE_OPTION_CHECKING
+
+AC_DEFUN([RUBY_RM_RECURSIVE], [
+m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]), [2.70]), [-1], [
+# suppress error messages, rm: cannot remove 'conftest.dSYM', from
+# AC_EGREP_CPP with CFLAGS=-g on Darwin.
+#
+# TODO: remove this hack when AC_PREREQ() becomes 2.70 or later.
+AS_CASE([$build_os], [darwin*], [
+rm() {
+    rm_recursive=''
+    for arg do
+	AS_CASE("$arg",
+		[--*], [],
+		[-*r*], [break],
+		[conftest.*], [if test -d "$arg"; then rm_recursive=-r; break; fi],
+		[])
+    done
+    command rm $rm_recursive "[$]@"
+}
+])])])
+
+{ # environment section
+
+AC_ARG_WITH(baseruby,
+	AS_HELP_STRING([--with-baseruby=RUBY], [use RUBY as baseruby; RUBY is the pathname of ruby]),
+	[
+		AS_CASE(["$withval"],[*ruby*],[BASERUBY=$withval],[AC_MSG_ERROR(need ruby)])
+	],
+	[
+		BASERUBY="ruby"
+	])
+if test "`RUBYOPT=- $BASERUBY -e 'p 42' 2>/dev/null`" = 42; then
+    if test "`RUBYOPT=- $BASERUBY --disable=gems -e 'p 42' 2>/dev/null`" = 42; then
+	BASERUBY="$BASERUBY --disable=gems"
+    fi
+else
+    BASERUBY="echo executable host ruby is required.  use --with-baseruby option.; false"
+fi
+AC_SUBST(BASERUBY)
+
+for conf in config.guess config.sub; do
+    test -f "$srcdir/tool/$conf" && continue
+    $BASERUBY -C "$srcdir/tool" get-config_files $conf
+done
+
+AC_DEFUN([RUBY_MINGW32],
+[AS_CASE(["$host_os"],
+[cygwin*], [
+AC_CACHE_CHECK(for mingw32 environment, rb_cv_mingw32,
+[AC_TRY_CPP([
+#ifndef __MINGW32__
+# error
+#endif
+], rb_cv_mingw32=yes,rb_cv_mingw32=no)
+rm -f conftest*])
+if test "$rb_cv_mingw32" = yes; then
+    target_os="mingw32"
+    : ${ac_tool_prefix:="`expr "$CC" : ['\(.*-\)g\?cc[^/]*$']`"}
+fi
+])
+AS_CASE(["$target_os"], [mingw*msvc], [
+target_os="`echo ${target_os} | sed 's/msvc$//'`"
+])
+AS_CASE(["$target_cpu-$target_os"], [x86_64-mingw*], [
+target_cpu=x64
+])
+])
+
+AC_DEFUN([RUBY_NACL],
+[
+ AS_CASE(["${host_os}"],
+[nacl], [
+  ac_cv_exeext=.nexe
+  host_vendor=chromium
+  ac_cv_host=chromium
+  AC_MSG_CHECKING([wheather \$NACL_SDK_ROOT is set])
+  if test x"${NACL_SDK_ROOT}" = x; then
+    AC_MSG_RESULT([no])
+    AC_MSG_ERROR([You need to set \$NACL_SDK_ROOT environment variable to build for NativeClient])
+  fi
+  AC_MSG_RESULT([yes])
+
+  nacl_cv_build_variant=glibc
+  AC_ARG_WITH(newlib,
+              AS_HELP_STRING([--with-newlib], [uses newlib version of NativeClient SDK]),
+              [AS_CASE([$withval],
+                       [no], [nacl_cv_build_variant=glibc],
+                       [yes], [nacl_cv_build_variant=newlib])])
+
+  AS_CASE(["$build_cpu"],
+          [x86_64|i?86], [nacl_cv_cpu_nick=x86], [nacl_cv_cpu_nick=$build_cpu])
+  AS_CASE(["$build_os"],
+          [linux*], [nacl_cv_os_nick=linux],
+          [darwin*], [nacl_cv_os_nick=mac],
+          [cygwin*|mingw*], [nacl_cv_os_nick=win],
+          [nacl_cv_os_nick=$build_os])
+
+  host="$host_cpu-chromium-$host_os-"
+  ac_tool_prefix="$host_cpu-nacl-"
+
+  AC_MSG_CHECKING([NativeClient toolchain])
+  if 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}_${nacl_cv_build_variant}"
+  else
+    AS_CASE(
+      ["${nacl_cv_build_variant}"],
+      [glibc], [if test \
+        -d "${NACL_SDK_ROOT}/toolchain/${nacl_cv_os_nick}_${nacl_cv_cpu_nick}_newlib" \
+        -a -d "${NACL_SDK_ROOT}/toolchain/${nacl_cv_os_nick}_${nacl_cv_cpu_nick}"; then
+        NACL_TOOLCHAIN="${nacl_cv_os_nick}_${nacl_cv_cpu_nick}"
+      fi],
+      [newlib], [ NACL_TOOLCHAIN="${nacl_cv_os_nick}_${nacl_cv_cpu_nick}" ])
+  fi
+  if test ! -e "${NACL_SDK_ROOT}/toolchain/${NACL_TOOLCHAIN}/${ac_tool_prefix}gcc"; then
+    if test "${build_cpu}" = i686 -a -e "${NACL_SDK_ROOT}/toolchain/${NACL_TOOLCHAIN}/nacl-gcc"; then
+      ac_tool_prefix=nacl-
+    fi
+    if test "${build_cpu}" = x86_64 -a -e "${NACL_SDK_ROOT}/toolchain/${NACL_TOOLCHAIN}/nacl-gcc"; then
+      ac_tool_prefix=nacl64-
+    fi
+  fi
+  if test -z "${NACL_TOOLCHAIN}"; then
+    AC_MSG_ERROR([Unrecognized --host and --build combination or NaCl SDK is not installed])
+  fi
+  AC_MSG_RESULT(${NACL_TOOLCHAIN})
+
+  AC_MSG_CHECKING([path to SDK])
+  if ! echo -- "${PATH}" | grep -F "${NACL_SDK_ROOT}/toolchain/${NACL_TOOLCHAIN}/bin" > /dev/null; then
+    PATH="${PATH}:${NACL_SDK_ROOT}/toolchain/${NACL_TOOLCHAIN}/bin"
+  fi
+
+  AC_SUBST(NACL_TOOLCHAIN)
+  AC_SUBST(NACL_SDK_ROOT)
+  AC_SUBST(NACL_SDK_VARIANT, nacl_cv_build_variant)
+])])
+
+AC_DEFUN([RUBY_NACL_CHECK_PEPPER_TYPES],
+[AS_CASE(["${host_os}"],
+[nacl], [
+ AC_CHECK_TYPES([struct PPB_Core, struct PPB_Messaging, struct PPB_Var,
+              struct PPB_URLLoader, struct PPB_URLRequestInfo,
+              struct PPB_URLResponseInfo, struct PPB_FileRef,
+              struct PPP_Instance])
+])
+])
+
+AC_DEFUN([RUBY_CPPOUTFILE],
+[AC_CACHE_CHECK(whether ${CPP} accepts -o, rb_cv_cppoutfile,
+[save_CPPFLAGS="$CPPFLAGS"
+CPPFLAGS='-o conftest-1.i'
+rb_cv_cppoutfile=no
+AC_TRY_CPP([test-for-cppout],
+	   [grep test-for-cppout conftest-1.i > /dev/null && rb_cv_cppoutfile=yes])
+CPPFLAGS="$save_CPPFLAGS"
+rm -f conftest*])
+if test "$rb_cv_cppoutfile" = yes; then
+  CPPOUTFILE='-o conftest.i'
+elif test "$rb_cv_cppoutfile" = no; then
+  CPPOUTFILE='> conftest.i'
+elif test -n "$rb_cv_cppoutfile"; then
+  CPPOUTFILE="$rb_cv_cppoutfile"
+fi
+AC_SUBST(CPPOUTFILE)])
+
+AC_DEFUN([RUBY_PROG_GNU_LD],
+[AC_CACHE_CHECK(whether the linker is GNU ld, rb_cv_prog_gnu_ld,
+[if `$CC $CFLAGS $CPPFLAGS $LDFLAGS --print-prog-name=ld 2>&1` -v 2>&1 | grep "GNU ld" > /dev/null; then
+  rb_cv_prog_gnu_ld=yes
+else
+  rb_cv_prog_gnu_ld=no
+fi
+])
+GNU_LD=$rb_cv_prog_gnu_ld
+AC_SUBST(GNU_LD)])
+
+eval `sed -n 's/^#define RUBY_API_VERSION_\([A-Z][A-Z_0-9]*\) \([0-9][0-9]*\)/\1=\2/p' $srcdir/include/ruby/version.h`
+for v in MAJOR MINOR TEENY; do
+    if eval "test \"\$$v\" = ''"; then
+	AC_MSG_ERROR(could not determine $v number from version.h)
+    fi
+done
+AC_SUBST(MAJOR)
+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' $srcdir/version.h`
+AC_DEFINE(CANONICALIZATION_FOR_MATHN)
+dnl checks for alternative programs
+AC_CANONICAL_BUILD
+RUBY_RM_RECURSIVE
+AC_ARG_WITH(gcc,
+	AS_HELP_STRING([--without-gcc], [never use gcc]),
+	[
+	AS_CASE([$withval],
+	    [no],  [: ${CC=cc}],
+	    [yes], [: ${CC=gcc}],
+	           [CC=$withval])])
+dnl If the user switches compilers, we can't believe the cache
+if test ! -z "$ac_cv_prog_CC" -a ! -z "$CC" -a "$CC" != "$ac_cv_prog_CC"
+then
+  AC_MSG_ERROR(cached CC is different -- throw away $cache_file
+(it is also a good idea to do 'make clean' before compiling))
+fi
+AS_CASE(["$build_os"],
+  [darwin1*.*], [
+    AS_CASE(["x$CC"],
+      [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++}],
+      [xclang|x/usr/bin/clang],     [: ${CXX=clang++}])
+  ])
+test -z "$CC" || ac_cv_prog_CC="$CC"
+test -z "$CXX" || ac_cv_prog_CXX="$CXX"
+
+if test "$program_prefix" = NONE; then
+  program_prefix=
+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_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.
+
+AS_CASE($target_os,
+	[darwin*], [os_version_style=major+0],
+	[os_version_style=full])
+AC_ARG_WITH(os-version-style,
+	AS_HELP_STRING([--with-os-version-style=TYPE],
+		       [OS version number for target and target_os [[full]]]
+		       [(full|teeny|minor+0|minor|major+0|major|none)]),
+	[os_version_style=$withval])
+os_version_style_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, $2)
+	AS_CASE([" [$]{$1-} "],
+	[*' $2 '*], [], ['  '], [ $1="$2"], [ $1="[$]$1 $2"])])
+AC_DEFUN([RUBY_APPEND_OPTIONS],
+	[{ for rb_opt in $2; do # RUBY_APPEND_OPTIONS($1, $2)
+	AS_CASE([" [$]{$1-} "],
+	[*" [$]{rb_opt} "*], [], ['  '], [ $1="[$]{rb_opt}"], [ $1="[$]$1 [$]{rb_opt}"])
+	done; }])
+AC_DEFUN([RUBY_PREPEND_OPTION],
+	[# RUBY_PREPEND_OPTION($1, $2)
+	AS_CASE([" [$]{$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, $2)
+	AS_CASE([" [$]{rb_opts} [$]{$1-} "],
+	[*" [$]{rb_opt} "*], [], ['  '], [ $1="[$]{rb_opt}"], [ rb_opts="[$]{rb_opts}[$]{rb_opt} "])
+	done
+	$1="[$]{rb_opts}[$]$1"; }])
+
+AC_ARG_WITH(arch,
+	AS_HELP_STRING([--with-arch=ARCHS],
+		       [build an Apple/NeXT Multi Architecture Binary (MAB);
+                          ARCHS is a comma-delimited list of architectures for
+                          which to build; if this option is disabled or omitted
+			  entirely, then the package will be built only for the
+			  target platform]),
+       [target_archs="$withval"], [unset target_archs])
+
+AC_DEFUN([RUBY_DEFAULT_ARCH], [
+AC_MSG_CHECKING([arch option])
+AS_CASE([$1],
+	[*64],        [ARCH_FLAG=-m64],
+	[[i[3-6]86]], [ARCH_FLAG=-m32],
+	[AC_MSG_ERROR(unknown target architecture: $target_archs)]
+	)
+AC_MSG_RESULT([$ARCH_FLAG])
+])
+
+AC_DEFUN([RUBY_UNIVERSAL_ARCH], [
+# RUBY_UNIVERSAL_ARCH begin
+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'`
+unset universal_binary universal_archnames
+if test ${target_archs+set}; then
+    AC_MSG_CHECKING([target architectures])
+    target_archs=`echo $target_archs | tr , ' '`
+    # /usr/lib/arch_tool -archify_list $TARGET_ARCHS
+    for archs in $target_archs
+    do
+	AS_CASE([",$universal_binary,"],[*",$archs,"*], [],[
+	    cpu=`$SHELL "$ac_aux_dir/config.sub" "${archs}-${target_os}" 2>&1` || {
+	        AC_MSG_RESULT([failed])
+		AC_MSG_ERROR([$cpu])
+	    }
+	    cpu=`echo $cpu | sed 's/-.*-.*//'`
+	    universal_binary="${universal_binary+$universal_binary,}$cpu"
+	    universal_archnames="${universal_archnames} ${archs}=${cpu}"
+	    ARCH_FLAG="${ARCH_FLAG+$ARCH_FLAG }-arch $archs"
+	    ])
+    done
+    target_archs="$universal_binary"
+    unset universal_binary
+    AS_CASE(["$target_archs"],
+      [*,*], [universal_binary=yes],
+             [unset universal_archnames])
+    AC_MSG_RESULT([$target_archs])
+
+    target=`echo $target | sed "s/^$target_cpu-/-/"`
+    target_alias=`echo $target_alias | sed "s/^$target_cpu-/-/"`
+    if test "${universal_binary-no}" = yes; then
+	AC_SUBST(try_header,try_compile)
+	target_cpu=universal
+	real_cross_compiling=$cross_compiling
+    else
+	if test x"$target_cpu" != x"${target_archs}"; then
+	    echo 'int main(){return 0;}' > conftest.c
+	    if $CC $CFLAGS $ARCH_FLAG -o conftest conftest.c > /dev/null 2>&1; then
+		rm -fr conftest.*
+	    else
+		RUBY_DEFAULT_ARCH("$target_archs")
+	    fi
+	fi
+	target_cpu=${target_archs}
+    fi
+    AS_CASE(["$target"], [-*], [ target="$target_cpu${target}"])
+    AS_CASE(["$target_alias"], [-*], [ target_alias="$target_cpu${target_alias}"])
+else
+    if test x"$target_alias" = x; then
+	AS_CASE(["$target_os"],
+	  [darwin*], [
+	    AC_MSG_CHECKING([for real target cpu])
+	    target=`echo $target | sed "s/^$target_cpu-/-/"`
+	    target_cpu=`$CC -E - 2>/dev/null <<EOF |
+#ifdef __x86_64__
+"processor-name=x86_64"
+#endif
+#ifdef __i386__
+"processor-name=i386"
+#endif
+#ifdef __ppc__
+"processor-name=powerpc"
+#endif
+#ifdef __ppc64__
+"processor-name=powerpc64"
+#endif
+EOF
+	    sed -n 's/^"processor-name=\(.*\)"/\1/p'`
+	    target="$target_cpu${target}"
+	    AC_MSG_RESULT([$target_cpu])
+	    ])
+    fi
+    target_archs="$target_cpu"
+fi
+if test "${target_archs}" != "${rb_cv_target_archs-${target_archs}}"; then
+    AC_MSG_ERROR([target arch(s) has changed from ${rb_cv_target_archs-nothing} to ${target_archs}])
+else
+    rb_cv_target_archs=${target_archs}
+fi
+if test "x${ARCH_FLAG}" != x; then
+    CFLAGS="$CFLAGS ${ARCH_FLAG}"
+    LDFLAGS="${LDFLAGS+$LDFLAGS }${ARCH_FLAG}"
+fi
+# RUBY_UNIVERSAL_ARCH end
+])
+
+AC_ARG_ENABLE(load-relative,
+       AS_HELP_STRING([--enable-load-relative], [resolve load paths at run time]),
+       [load_relative=$enableval])
+
+AC_ARG_PROGRAM
+
+dnl Checks for programs.
+
+cflagspat=
+test -z "$optflags" ||
+    cflagspat="$cflagspat;s|"`eval echo '"'"${optflags}"'"' | sed 's/[[][|.*]]/\\&/g;s/^ */ /;s/ *$/ /'`'| |g'
+test -z "$debugflags" ||
+    cflagspat="$cflagspat;s|"`eval echo '"'"${debugflags}"'"' | sed 's/[[][|.*]]/\\&/g;s/^ */ /;s/ *$/ /'`'| |g'
+test -z "warnflags" ||
+    cflagspat="$cflagspat;s|"`eval echo '"'"${warnflags}"'"' | sed 's/[[][|.*]]/\\&/g;s/^ */ /;s/ *$/ /'`'| |g'
+if test -z "${CFLAGS+set}"; then
+    cflags=`echo " $cflags " | sed "$cflagspat;s/^ *//;s/ *$//"`
+    orig_cflags="$cflags"
+    cflags="$cflags "'${optflags} ${debugflags} ${warnflags}'
+fi
+if test -z "${CXXFLAGS+set}"; then
+    cxxflags=`echo " $cxxflags " | sed "$cflagspat;s/^ *//;s/ *$//"`
+    orig_cxxflags="$cxxflags"
+    cxxflags="$cxxflags "'${optflags} ${debugflags} ${warnflags}'
+fi
+
+RUBY_NACL
+AS_CASE(["$host_os:$build_os"],
+[darwin*:darwin*], [
+    AC_CHECK_TOOLS(CC, [gcc-4.2 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"${host}"; then
+  AC_CHECK_TOOL(CC, gcc)
+fi
+
+AC_PROG_CC
+AC_PROG_CXX
+RUBY_MINGW32
+AC_PROG_GCC_TRADITIONAL
+AC_SUBST(GCC)
+AS_CASE(["$target_os"],
+[solaris*], [AC_PATH_TOOL([LD], [ld], [/usr/ccs/bin/ld], [/usr/ccs/bin:$PATH])],
+[AC_CHECK_TOOL([LD], [ld], [ld])])
+AC_SUBST(LD)
+if test "$GCC" = yes; then
+    linker_flag=-Wl,
+    : ${optflags=-O3}
+    gcc_major=`echo =__GNUC__ | $CC -E -xc - | sed '/^=/!d;s///'`
+    test -n "$gcc_major" || gcc_major=0
+    # RUBY_APPEND_OPTIONS(XCFLAGS, ["-include ruby/config.h" "-include ruby/missing.h"])
+else
+    linker_flag=
+fi
+
+RUBY_PROG_GNU_LD
+RUBY_CPPOUTFILE
+
+: ${OUTFLAG='-o '}
+: ${COUTFLAG=${OUTFLAG}}
+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("$target_cpu")
+fi
+
+AS_CASE(["$target_cpu-$target_os"], [[i[3-6]86*]], [
+	 AC_CACHE_CHECK([for __sync_val_compare_and_swap], [rb_cv_gcc_compiler_cas], [
+			 AC_TRY_LINK([unsigned long atomic_var;],
+				     [
+				      __sync_val_compare_and_swap(&atomic_var, 0, 1);
+				      ],
+				      [rb_cv_gcc_compiler_cas=yes],
+				      [rb_cv_gcc_compiler_cas=no])])
+	 if test "$rb_cv_gcc_compiler_cas" = no; then
+		 unset rb_cv_gcc_compiler_cas
+		 save_CFLAGS="$CFLAGS"
+		 CFLAGS="$CFLAGS -march=i486"
+		 AC_CACHE_CHECK([for __sync_val_compare_and_swap with -march=i486], [rb_cv_gcc_compiler_cas], [
+				 AC_TRY_LINK([unsigned long atomic_var;],
+					     [
+					      __sync_val_compare_and_swap(&atomic_var, 0, 1);
+					      ],
+					      [rb_cv_gcc_compiler_cas=yes
+					       ARCH_FLAG="-march=i486"],
+					      [rb_cv_gcc_compiler_cas=no])])
+		 CFLAGS="$save_CFLAGS"
+	 fi])
+
+AC_CHECK_TOOL(RANLIB, ranlib, :)
+AC_CHECK_TOOL(AR, ar)
+if test -z "$AR"; then
+  AC_CHECK_PROGS(AR, aal, ar)
+fi
+
+AC_CHECK_TOOL(AS, as)
+ASFLAGS=$ASFLAGS
+AC_SUBST(ASFLAGS)
+
+AS_CASE(["$target_os"],[cygwin*|mingw*], [ac_cv_prog_ac_ct_OBJCOPY=":"])
+
+# BSD's ports and MacPorts prefix GNU binutils with 'g'
+AC_CHECK_TOOLS(OBJDUMP, [objdump gobjdump])
+AC_CHECK_TOOLS(OBJCOPY, [objcopy gobjcopy])
+
+AS_CASE(["$target_os"],
+[cygwin*|mingw*], [
+    AC_CHECK_TOOL(WINDRES, windres)
+    AC_CHECK_TOOL(DLLWRAP, dllwrap)
+    target=`echo $target | sed "s/^$target_cpu-/-/"`
+    target_alias=`echo $target_alias | sed "s/^$target_cpu-/-/"`
+    target_cpu=`echo $target_cpu | sed s/i.86/i386/`
+    AS_CASE(["$target"], [-*], [ target="$target_cpu${target}"])
+    AS_CASE(["$target_alias"], [-*], [ target_alias="$target_cpu${target_alias}"])
+    AS_CASE(["$target_os"],
+    [mingw*], [
+	test "$rb_cv_msvcrt" = "" && unset rb_cv_msvcrt
+	AC_CACHE_CHECK(for mingw32 runtime DLL, rb_cv_msvcrt, [
+	AC_TRY_LINK([@%:@include <stdio.h>],
+		    [FILE* volatile f = stdin; return 0;],
+		    [rb_cv_msvcrt=`$OBJDUMP -p conftest$ac_exeext |
+				   tr A-Z a-z |
+				   sed -n '/^[[ 	]]*dll name: \(msvc.*\)\.dll$/{s//\1/p;q;}'`],
+		    [rb_cv_msvcrt=msvcrt])
+	test "$rb_cv_msvcrt" = "" && rb_cv_msvcrt=msvcrt])
+	RT_VER=`echo "$rb_cv_msvcrt" | tr -cd [0-9]`
+	test "$RT_VER" = "" && RT_VER=60
+	AC_DEFINE_UNQUOTED(RUBY_MSVCRT_VERSION, $RT_VER)
+    ])
+    : ${enable_shared=yes}
+    ],
+[aix*],     [AC_CHECK_TOOL(NM, nm, /usr/ccs/bin/nm, /usr/ccs/bin:$PATH)],
+[hiuxmpp*], [AC_DEFINE(__HIUX_MPP__)])    # by TOYODA Eizi <toyoda@npd.kishou.go.jp>
+AC_CHECK_TOOL(NM, nm)
+
+AC_PROG_LN_S
+AC_PROG_MAKE_SET
+AC_PROG_INSTALL
+AC_PROG_MKDIR_P
+if test "x$MKDIR_P" = "x -d"; then
+  if test x"$as_mkdir_p" != xfalse; then
+    MKDIR_P='mkdir -p'
+    echo "use 'mkdir -p' as MKDIR_P"
+  else
+    AC_MSG_ERROR([mkdir -p is required])
+  fi
+fi
+MAKEDIRS="$MKDIR_P"
+AC_SUBST(MAKEDIRS)
+
+AC_DEFUN([RUBY_DTRACE_AVAILABLE],
+[AC_CACHE_CHECK(whether dtrace USDT is available, rb_cv_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
+    else
+      # DTrace is not available while dtrace command exists
+      # for example FreeBSD 8 or FreeBSD 9 without DTrace build option
+      rb_cv_dtrace_available=no
+    fi
+    rm -f conftest.[co] conftest_provider.[dho]
+])
+])
+
+AC_DEFUN([RUBY_DTRACE_POSTPROCESS],
+[AC_CACHE_CHECK(whether $DTRACE needs post processing, rb_cv_prog_dtrace_g,
+[
+  if {
+    echo "provider conftest{ probe fire(); };" > conftest_provider.d &&
+    dtrace -h -o conftest_provider.h -s conftest_provider.d >/dev/null 2>/dev/null &&
+    cat >conftest.c <<_CONF &&
+    @%:@include "conftest_provider.h"
+    int main(void){ CONFTEST_FIRE(); return 0; }
+_CONF
+    $CC $CFLAGS -c -o conftest.o conftest.c &&
+    $DTRACE -G -s conftest_provider.d conftest.o 2>/dev/null
+  }; then
+    rb_cv_prog_dtrace_g=yes
+  else
+    rb_cv_prog_dtrace_g=no
+  fi
+  rm -f conftest.[co] conftest_provider.[dho]
+])
+])
+
+AC_CHECK_PROG([DTRACE], [${ac_tool_prefix}dtrace], [${ac_tool_prefix}dtrace])
+if test "$cross_compiling:$ac_cv_prog_DTRACE" = no: -a -n "$ac_tool_prefix"; then
+    AC_CHECK_PROG([DTRACE], [dtrace], [dtrace])
+fi
+
+AC_CHECK_PROGS(DOT, dot)
+AC_CHECK_PROGS(DOXYGEN, doxygen)
+AS_CASE(["${host_os}"], [nacl], [AC_PATH_PROG(PYTHON, python)])
+
+AC_CHECK_PROG(PKG_CONFIG, pkg-config, [pkg-config], [], [],
+    [`"$as_dir/$ac_word$ac_exec_ext" --print-errors --version > /dev/null 2>&1 || echo "$as_dir/$ac_word$ac_exec_ext"`])
+
+# checks for UNIX variants that set C preprocessor variables
+AC_USE_SYSTEM_EXTENSIONS
+
+AC_SUBST(RM, ['rm -f'])
+AC_SUBST(CP, ['cp'])
+RMDIRS='$(top_srcdir)/tool/rmdirs'
+RMDIR=rmdir
+mkdir "rmdirs_$$_test" "rmdirs_$$_test/a"
+rmdir --ignore-fail-on-non-empty "rmdirs_$$_test" 2>/dev/null &&
+RMDIR='rmdir --ignore-fail-on-non-empty'
+$RMDIR -p "rmdirs_$$_test/a" 2>/dev/null &&
+{ test -d "rmdirs_$$_test" || RMDIRS="$RMDIR -p"; }
+rmdir "rmdirs_$$_test/a" "rmdirs_$$_test" 2>/dev/null
+AC_SUBST(RMDIR)
+AC_SUBST(RMDIRS)
+AC_SUBST(RMALL, ['rm -fr'])
+
+AC_MSG_CHECKING([for cd using physical directory])
+rm -fr conf$$.dir
+mkdir conf$$.dir &&
+(cd conf$$.dir && mkdir src build && cd src &&
+$as_ln_s ../build . > /dev/null 2>&1 && cd build &&
+for chdir in 'cd -P' 'PWD= cd'; do
+    /bin/sh -c "$chdir ../src && echo '$chdir' > cdcmd" 2> /dev/null && break
+done)
+if test -f conf$$.dir/src/cdcmd; then
+    read CHDIR < conf$$.dir/src/cdcmd 2> /dev/null
+else
+    CHDIR=cd
+fi
+rm -fr conf$$.dir
+AC_MSG_RESULT([$CHDIR])
+AC_SUBST(CHDIR)
+
+}
+{ # compiler section
+
+AC_DEFUN([RUBY_WERROR_FLAG], [dnl
+save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS $rb_cv_warnflags"
+if test "${ac_c_werror_flag+set}"; then
+  rb_c_werror_flag="$ac_c_werror_flag"
+else
+  unset rb_c_werror_flag
+fi
+ac_c_werror_flag=yes
+$1
+CFLAGS="$save_CFLAGS"
+save_CFLAGS=
+if test "${rb_c_werror_flag+set}"; then
+  ac_c_werror_flag="$rb_c_werror_flag"
+else
+  unset ac_c_werror_flag
+fi])
+
+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="$CFLAGS"])
+	]
+    )
+    AC_MSG_CHECKING([whether LDFLAGS is valid])
+    AC_TRY_LINK([], [],
+	[AC_MSG_RESULT(yes)],
+	[
+	AC_MSG_RESULT(no)
+	AC_MSG_ERROR([something wrong with LDFLAGS="$LDFLAGS"])
+	]
+    )
+])
+
+AC_DEFUN(RUBY_TRY_CFLAGS, [
+    AC_MSG_CHECKING([whether ]$1[ is accepted as CFLAGS])
+    RUBY_WERROR_FLAG([
+    CFLAGS="[$]CFLAGS $1"
+    AC_TRY_COMPILE([$4], [$5],
+	[$2
+	AC_MSG_RESULT(yes)],
+	[$3
+	AC_MSG_RESULT(no)])
+    ])
+])
+
+AC_DEFUN(RUBY_TRY_LDFLAGS, [
+    save_LDFLAGS="$LDFLAGS"
+    LDFLAGS="[$]LDFLAGS $1"
+    AC_MSG_CHECKING([whether $1 is accepted as LDFLAGS])
+    RUBY_WERROR_FLAG([
+    AC_TRY_LINK([$4], [$5],
+	[$2
+	AC_MSG_RESULT(yes)],
+	[$3
+	AC_MSG_RESULT(no)])
+    ])
+    LDFLAGS="$save_LDFLAGS"
+    save_LDFLAGS=
+])
+
+AS_CASE([$RUBY_PATCHLEVEL], [-*],
+	[particular_werror_flags=yes], [particular_werror_flags=no])
+AC_ARG_ENABLE(werror,
+	AS_HELP_STRING([--disable-werror],
+		       [don't make warnings into errors
+		       even if a compiler support -Werror feature
+		       [[disabled by default unless development version]]]),
+	[particular_werror_flags=$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
+    for wflag in -Wno-unused-parameter -Wno-parentheses -Wno-long-long \
+		 -Wno-missing-field-initializers \
+		 -Wunused-variable \
+		 -Werror=pointer-arith \
+		 -Werror=write-strings \
+		 -Werror=declaration-after-statement \
+		 -Werror=shorten-64-to-32 \
+		 -Werror=implicit-function-declaration \
+		 -Werror=division-by-zero \
+		 $extra_warning \
+		 ; do
+	if test "$particular_werror_flags" != yes; then
+	    wflag=`echo x$wflag | sed 's/^x-Werror=/-W/;s/^x//'`
+	fi
+	ok=no
+	RUBY_TRY_CFLAGS($wflag, [
+	    RUBY_APPEND_OPTIONS(warnflags, $wflag)
+	    ok=yes
+	])
+	AS_CASE([$ok:$wflag], [no:-Werror=*], [
+	    wflag=`echo x$wflag | sed 's/^x-Werror=/-W/'`
+	    RUBY_TRY_CFLAGS($wflag, [
+		RUBY_APPEND_OPTIONS(warnflags, $wflag)
+		particular_werror_flags=no
+	    ])
+	])
+    done
+    AS_CASE([" $warnflags "],[*" -Wno-missing-field-initializers "*], [wflag="-Wall -Wextra"],
+                             [wflag=-Wall])
+    RUBY_TRY_CFLAGS($wflag, [warnflags="$wflag${warnflags+ $warnflags}"])
+    # Disable warnflags while conftest. -Werror=* flags might make bad OS capability guess.
+    rb_cv_warnflags="$warnflags"
+    warnflags=
+fi
+if test "$GCC" = yes; then
+    # -D_FORTIFY_SOURCE
+    # When defined _FORTIFY_SOURCE, glibc enables some additional sanity
+    # argument check. The performance drop is very little and Ubuntu enables
+    # _FORTIFY_SOURCE=2 by default. So, let's support it for protecting us from
+    # a mistake of silly C extensions.
+    RUBY_TRY_CFLAGS(-D_FORTIFY_SOURCE=2, [RUBY_APPEND_OPTION(XCFLAGS, -D_FORTIFY_SOURCE=2)])
+
+    # -fstack-protector
+    AS_CASE(["$target_os"],
+    [mingw*|nacl|haiku], [
+	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$stack_protector" = xyes; then
+	RUBY_APPEND_OPTION(XCFLAGS, -fstack-protector)
+	RUBY_APPEND_OPTION(XLDFLAGS, -fstack-protector)
+	RUBY_APPEND_OPTION(LDFLAGS, -fstack-protector)
+    fi
+
+    AS_CASE(["$target_os"],[mingw*], [
+      # 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.
+    ],
+    [cygwin*|darwin*|netbsd*], [
+      # 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)
+      ])
+    ])
+
+    # 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 && : ${debugflags=-g}
+
+if test "$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
+    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
+    test "$visibility_option" = no -o "$host_os" = nacl || OBJCOPY=:
+fi
+
+if test "$GCC" = yes; then
+    # optflags
+
+    AS_CASE(["$target_os"], [mingw*], [
+	RUBY_TRY_CFLAGS(-fno-omit-frame-pointer, [optflags="${optflags+$optflags }-fno-omit-frame-pointer"])
+    ])
+
+    # disable fast-math
+    for oflag in -fno-fast-math; do
+	RUBY_TRY_CFLAGS($oflag, [RUBY_APPEND_OPTION(optflags, $oflag)])
+    done
+fi
+
+test -z "${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 $ARCH_FLAG\""
+
+}
+{ # header and library section
+
+AC_ARG_WITH(winnt-ver,
+  AS_HELP_STRING([--with-winnt-ver=0xXXXX], [target Windows NT version (default to 0x0501)]),
+  [with_winnt_ver="$withval"], [with_winnt_ver="0x0501"])
+AS_CASE(["$target_os"],
+[mingw*], [
+  RUBY_APPEND_OPTION(CPPFLAGS, -D_WIN32_WINNT=$with_winnt_ver)
+])
+
+AS_CASE(["$target_os"],
+[freebsd*], [
+  AC_CACHE_CHECK([whether pthread should be enabled by default],
+    rb_cv_enable_pthread_default,
+    [AC_TRY_CPP([
+#include <osreldate.h>
+#if __FreeBSD_version < 502102
+#error pthread should be disabled on this platform
+#endif
+      ],
+      rb_cv_enable_pthread_default=yes,
+      rb_cv_enable_pthread_default=no)])
+  enable_pthread=$rb_cv_enable_pthread_default
+  ],
+[mingw*], [
+  enable_pthread=no
+  ],
+[
+  enable_pthread=yes
+  ])
+
+AC_ARG_ENABLE(pthread,
+       AS_HELP_STRING([--enable-pthread], [obsolete, and ignored]))
+
+dnl Checks for libraries.
+AS_CASE(["$target_os"],[*bsd*|dragonfly*],[],[ac_cv_func_daemon=no])
+
+POSTLINK=:
+AC_SUBST(POSTLINK)
+AS_CASE(["$target_os"],
+[nextstep*], [	],
+[openstep*], [	],
+[rhapsody*], [	],
+[darwin*], [	RUBY_PREPEND_OPTION(LIBS, -lobjc)
+		RUBY_APPEND_OPTIONS(CPPFLAGS, -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT)
+		AC_MSG_CHECKING(whether Mac OS X 10.5 or later)
+		AC_TRY_CPP([#include <AvailabilityMacros.h>
+		    #if MAC_OS_X_VERSION_MAX_ALLOWED <= 1040
+		    #error pre OS X 10.4
+		    [!<===== pre OS X 10.4 =====>]
+		    #endif
+		    ],
+		    [macosx_10_5=yes], [macosx_10_5=no])
+		AC_MSG_RESULT($macosx_10_5)
+		if test $macosx_10_5 = yes; then
+		    ac_cv_header_ucontext_h=no
+		else
+		    AC_DEFINE(BROKEN_SETREUID, 1)
+		    AC_DEFINE(BROKEN_SETREGID, 1)
+		fi
+		ac_cv_type_getgroups=gid_t # getgroups() on Rosetta fills garbage
+		ac_cv_lib_crypt_crypt=no
+		ac_cv_func_fdatasync=no # Mac OS X wrongly reports it has fdatasync()
+                AC_CACHE_CHECK(for broken crypt with 8bit chars, rb_cv_broken_crypt,
+                    [AC_TRY_RUN([
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+
+int
+main()
+{
+    int i;
+    for (i = 0; i < 128*128; i++) {
+	char salt[2], buf[256], *s;
+	salt[0] = 0x80 | (i & 0x7f);
+	salt[1] = 0x80 | (i >> 7);
+	strcpy(buf, crypt("", salt));
+	if (strcmp(buf, s = crypt("", salt))) {
+#if 0
+	    printf("%.2x%.2x: %s -> %s\n", (unsigned char)salt[0], (unsigned char)salt[1],
+		   buf+2, s+2);
+#endif
+	    return 1;
+	}
+    }
+    return 0;
+}
+],
+	            rb_cv_broken_crypt=no,
+	            rb_cv_broken_crypt=yes,
+	            rb_cv_broken_crypt=yes)])
+                if test "$rb_cv_broken_crypt" = yes; then
+                  AC_DEFINE(BROKEN_CRYPT, 1)
+                fi
+		AC_CHECK_PROGS(codesign, codesign)
+		if test -n "$codesign"; then
+		    POSTLINK="test -z '\$(RUBY_CODESIGN)' || $codesign -s '\$(RUBY_CODESIGN)' -f \$@"
+		    LINK_SO="$LINK_SO
+\$(POSTLINK)"
+		fi
+		AC_CHECK_HEADERS(crt_externs.h, [], [], [
+		    #include <crt_externs.h>
+		])
+		],
+[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
+		],
+[cygwin*], [	ac_cv_header_langinfo_h=yes
+		AC_CHECK_FUNCS(cygwin_conv_path)
+		AC_LIBOBJ([langinfo])
+		],
+[mingw*], [	LIBS="-lshell32 -lws2_32 -liphlpapi -limagehlp -lshlwapi $LIBS"
+		ac_cv_header_a_out_h=no
+		ac_cv_header_pwd_h=no
+		ac_cv_header_utime_h=no
+		ac_cv_header_sys_ioctl_h=no
+		ac_cv_header_sys_param_h=no
+		ac_cv_header_sys_resource_h=no
+		ac_cv_header_sys_select_h=no
+		ac_cv_header_sys_time_h=no
+		ac_cv_header_sys_times_h=no
+		ac_cv_header_sys_socket_h=no
+		ac_cv_func_times=yes
+		ac_cv_func_waitpid=yes
+		ac_cv_func_fsync=yes
+		ac_cv_func_seekdir=yes
+		ac_cv_func_telldir=yes
+		ac_cv_func_isinf=yes
+		ac_cv_func_isnan=yes
+		ac_cv_func_finite=yes
+		ac_cv_func_link=yes
+		ac_cv_lib_crypt_crypt=no
+		ac_cv_func_getpgrp_void=no
+		ac_cv_func_memcmp_working=yes
+		ac_cv_lib_dl_dlopen=no
+		rb_cv_binary_elf=no
+		rb_cv_negative_time_t=no
+		ac_cv_func_fcntl=yes
+		ac_cv_func_flock=yes
+		ac_cv_func_gmtime_r=yes
+		rb_cv_large_fd_select=yes
+		ac_cv_type_struct_timeval=yes
+                ac_cv_func_clock_gettime=yes
+                ac_cv_func_clock_getres=yes
+		ac_cv_func_malloc_usable_size=no
+		AC_CHECK_TYPE([NET_LUID], [], [],
+			      [@%:@include <windows.h>
+		  	      @%:@include <iphlpapi.h>])
+		if test x"$ac_cv_type_NET_LUID" = xyes; then
+		    AC_DEFINE(HAVE_TYPE_NET_LUID, 1)
+		fi
+		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)
+                ac_cv_sizeof_rlim_t=8],
+[freebsd*], [	LIBS="-lm $LIBS"
+		ac_cv_func_getpeername=no
+		ac_cv_func_getsockname=no
+		ac_cv_func_shutdown=no
+		ac_cv_func_close=no
+		],
+[dragonfly*], [	LIBS="-lm $LIBS"
+		# isinf() and isnan() are macros on DragonFly.
+		ac_cv_func_isinf=yes
+		ac_cv_func_isnan=yes
+		],
+[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 $LIBS"])
+
+AC_CHECK_LIB(crypt, crypt)      # glibc (GNU/Linux, GNU/Hurd, GNU/kFreeBSD)
+AC_CHECK_LIB(dl, dlopen)	# Dynamic linking for SunOS/Solaris and SYSV
+AC_CHECK_LIB(dld, shl_load)	# Dynamic linking for HP-UX
+AC_CHECK_LIB(socket, shutdown)  # SunOS/Solaris
+
+dnl Checks for header files.
+AC_HEADER_DIRENT
+dnl AC_HEADER_STDC has been checked in AC_USE_SYSTEM_EXTENSIONS
+AC_HEADER_STDBOOL
+AC_HEADER_SYS_WAIT
+AC_CHECK_HEADERS( \
+  limits.h \
+  sys/file.h \
+  sys/ioctl.h \
+  sys/syscall.h \
+  fcntl.h \
+  sys/fcntl.h \
+  sys/select.h \
+  sys/time.h \
+  sys/times.h \
+  sys/param.h \
+  syscall.h \
+  pwd.h \
+  grp.h \
+  a.out.h \
+  utime.h \
+  direct.h \
+  sys/resource.h \
+  sys/mkdev.h \
+  sys/utime.h \
+  float.h \
+  ieeefp.h \
+  ucontext.h \
+  intrinsics.h \
+  langinfo.h \
+  locale.h \
+  sys/sendfile.h \
+  time.h \
+  net/socket.h \
+  sys/socket.h \
+  process.h \
+  sys/prctl.h \
+  atomic.h \
+  malloc.h \
+  malloc_np.h \
+  setjmpex.h
+)
+
+AC_ARG_WITH([gmp],
+  [AS_HELP_STRING([--without-gmp],
+    [disable GNU GMP to accelerate Bignum operations])],
+  [],
+  [with_gmp=yes])
+AS_IF([test "x$with_gmp" != xno],
+  [AC_CHECK_HEADERS(gmp.h)
+   AS_IF([test "x$ac_cv_header_gmp_h" != xno],
+     AC_CHECK_LIB([gmp], [__gmpz_init]))
+   with_gmp="$ac_cv_lib_gmp___gmpz_init"
+   AS_IF([test -z "$with_gmp"], [with_gmp=no])])
+
+dnl check for large file stuff
+mv confdefs.h confdefs1.h
+: > confdefs.h
+AC_SYS_LARGEFILE
+mv confdefs.h largefile.h
+mv confdefs1.h confdefs.h
+cat largefile.h >> confdefs.h
+
+AS_CASE(["$target_os"],[mingw*], [ac_cv_type_off_t=yes;ac_cv_sizeof_off_t=8])
+
+AC_C_BIGENDIAN
+AC_C_CONST
+AC_C_CHAR_UNSIGNED
+AC_C_INLINE
+AC_C_VOLATILE
+
+AS_CASE(":$ac_cv_c_const:$ac_cv_c_volatile:",
+    [*:no:*], [AC_MSG_ERROR(ANSI C-conforming const and volatile are mandatory)])
+
+AC_CHECK_TYPES([long long, off_t])
+
+AC_CACHE_CHECK([char bit], [rb_cv_char_bit],
+    [test "$universal_binary" = yes && cross_compiling=yes
+    AC_COMPUTE_INT([rb_cv_char_bit], [CHAR_BIT],
+	[AC_INCLUDES_DEFAULT([@%:@include <limits.h>])], [rb_cv_char_bit=8])
+    test "$universal_binary" = yes && cross_compiling=$real_cross_compiling])
+
+dnl RUBY_CHECK_SIZEOF [typename], [maybe same size types], [macros], [include]
+AC_DEFUN([RUBY_CHECK_SIZEOF],
+[m4_bmatch([$1], [\.], [], [if test "$universal_binary" = yes; then])
+AC_CACHE_CHECK([size of $1], [AS_TR_SH([ac_cv_sizeof_$1])], [
+    unset AS_TR_SH(ac_cv_sizeof_$1)
+    rbcv_var="
+typedef m4_bpatsubst([$1], [\..*]) ac__type_sizeof_;
+static ac__type_sizeof_ *rbcv_ptr;
+@%:@define AS_TR_CPP(SIZEOF_$1) sizeof((*rbcv_ptr)[]m4_bmatch([$1], [\.], .m4_bpatsubst([$1], [^[^.]*\.])))
+"
+    m4_ifval([$2], [test -z "${AS_TR_SH(ac_cv_sizeof_$1)+set}" && {
+    for t in $2; do
+	AC_COMPILE_IFELSE(
+	    [AC_LANG_BOOL_COMPILE_TRY(AC_INCLUDES_DEFAULT([$4]
+		[$rbcv_var]),
+		[AS_TR_CPP(SIZEOF_$1) == sizeof($t)])], [
+		AS_TR_SH(ac_cv_sizeof_$1)=AS_TR_CPP([SIZEOF_]$t)
+		break])
+    done
+    }])
+    unset cond
+    m4_ifval([$3], [test -z "${AS_TR_SH(ac_cv_sizeof_$1)+set}" && {
+    for s in 32 64 128; do
+	for t in $3; do
+	    cond="${cond}
+@%:@${cond+el}if defined(__${t}${s}__) || defined(__${t}${s}) || defined(_${t}${s}) || defined(${t}${s})"
+	    hdr="AC_INCLUDES_DEFAULT([$4
+@%:@if defined(__${t}${s}__) || defined(__${t}${s}) || defined(_${t}${s}) || defined(${t}${s})
+@%:@ define AS_TR_CPP(HAVE_$1) 1
+@%:@else
+@%:@ define AS_TR_CPP(HAVE_$1) 0
+@%:@endif])"
+	    AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$hdr], [!AS_TR_CPP(HAVE_$1)])], [continue])
+	    AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$hdr]
+				[$rbcv_var],
+				[AS_TR_CPP(HAVE_$1) == (AS_TR_CPP(SIZEOF_$1) == ([$[s / rb_cv_char_bit]]))])],
+		[AS_TR_SH(ac_cv_sizeof_$1)="${AS_TR_SH(ac_cv_sizeof_$1)+${AS_TR_SH(ac_cv_sizeof_$1)-} }${t}${s}"])
+	done
+    done
+    }])
+    m4_ifval([$2][$3],
+	[test "${AS_TR_SH(ac_cv_sizeof_$1)@%:@SIZEOF_}" = "${AS_TR_SH(ac_cv_sizeof_$1)}" && ]){
+    test "$universal_binary" = yes && cross_compiling=yes
+    AC_COMPUTE_INT([t], AS_TR_CPP(SIZEOF_$1), [AC_INCLUDES_DEFAULT([$4])]
+[${cond+$cond
+@%:@else}
+$rbcv_var
+${cond+@%:@endif}
+@%:@ifndef AS_TR_CPP(SIZEOF_$1)
+@%:@define AS_TR_CPP(SIZEOF_$1) 0
+@%:@endif], [t=0])
+    test "$universal_binary" = yes && cross_compiling=$real_cross_compiling
+    if test ${t-0} != 0; then
+	AS_TR_SH(ac_cv_sizeof_$1)="${AS_TR_SH(ac_cv_sizeof_$1)+${AS_TR_SH(ac_cv_sizeof_$1)-} }${t}"
+    fi
+    }
+    : ${AS_TR_SH(ac_cv_sizeof_$1)=0}
+])
+{
+    unset cond
+    for t in ${AS_TR_SH(ac_cv_sizeof_$1)-}; do
+	AS_CASE(["$t"],
+	[[[0-9]*|SIZEOF_*]], [
+	    ${cond+echo "@%:@else"}
+	    echo "[@%:@define ]AS_TR_CPP(SIZEOF_$1) [$t]"
+	    break
+	    ],
+	[
+	    s=`expr $t : ['.*[^0-9]\([0-9][0-9]*\)$']`
+	    echo "@%:@${cond+el}if defined(__${t}__) || defined(__${t}) || defined(_${t}) || defined($t)"
+	    echo "@%:@define AS_TR_CPP(SIZEOF_$1) [$[s / rb_cv_char_bit]]"
+	    cond=1
+	    ])
+    done
+    ${cond+echo "@%:@endif"}
+} >> confdefs.h
+m4_bmatch([$1], [\.], [], [else
+AC_CHECK_SIZEOF([$1], 0, [$4])
+fi])
+])
+
+RUBY_CHECK_SIZEOF(int, [], [ILP])
+RUBY_CHECK_SIZEOF(short)
+RUBY_CHECK_SIZEOF(long, [int], [ILP LP])
+RUBY_CHECK_SIZEOF(long long)
+RUBY_CHECK_SIZEOF(__int64)
+RUBY_CHECK_SIZEOF(__int128)
+RUBY_CHECK_SIZEOF(off_t)
+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_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 $2; do
+        AC_TRY_COMPILE(
+            [@%:@include <stdio.h>
+	    @%:@include <stddef.h>
+            @%:@ifdef __GNUC__
+            @%:@define PRINTF_ARGS(decl, string_index, first_to_check) \
+              decl __attribute__((format(printf, string_index, first_to_check)))
+            @%:@else
+            @%:@define PRINTF_ARGS(decl, string_index, first_to_check) decl
+            @%:@endif
+	    PRINTF_ARGS(void test_sprintf(const char*, ...), 1, 2);],
+            [printf("%]${pri}[d", (]$1[)42);
+            test_sprintf("%]${pri}[d", (]$1[)42);],
+            [rb_cv_pri_prefix_]AS_TR_SH($1)[=[$pri]; break])
+    done)])
+if test "[$rb_cv_pri_prefix_]AS_TR_SH($1)" != NONE; then
+    AC_DEFINE_UNQUOTED([PRI_]m4_ifval($3,$3,AS_TR_CPP(m4_bpatsubst([$1],[_t$])))[_PREFIX],
+        "[$rb_cv_pri_prefix_]AS_TR_SH($1)")
+fi
+])
+
+if test "x$ac_cv_type_long_long" = xyes; then
+    RUBY_CHECK_PRINTF_PREFIX(long long, ll I64, LL)
+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],
+		  [n="patsubst([$1],["],[\\"])"],
+		  [n="patsubst([$2],["],[\\"])"],
+		  [$4])
+    AC_CACHE_CHECK([for convertible type of [$1]], rb_cv_[$1]_convertible, [
+	u= t=
+	AS_CASE(["$n "],
+	  [*" signed "*], [ ],
+	  [*" unsigned "*], [
+	    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"
+		AC_COMPILE_IFELSE(
+		    [AC_LANG_BOOL_COMPILE_TRY([AC_INCLUDES_DEFAULT([$4])]
+			[typedef $n rbcv_conftest_target_type;
+			typedef $t rbcv_conftest_replace_type;
+			extern rbcv_conftest_target_type rbcv_conftest_var;
+			extern rbcv_conftest_replace_type rbcv_conftest_var;
+			extern rbcv_conftest_target_type rbcv_conftest_func(void);
+			extern rbcv_conftest_replace_type rbcv_conftest_func(void);
+			], [sizeof(rbcv_conftest_target_type) == sizeof(rbcv_conftest_replace_type)])],
+		    [n="$t"; break])
+	    done
+	fi
+	AS_CASE([" $n "],
+	  [*" long long "*], [
+	    t=LL],
+	  [*" long "*], [
+	    t=LONG],
+	  [
+	    t=INT])
+	rb_cv_[$1]_convertible=${u}${t}])
+    test "${AS_TR_SH(ac_cv_type_[$1])}" = "yes" && n="$1"
+    AS_CASE("${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,
+	[PRI_`echo ${rb_cv_[$1]_convertible} | sed ['s/^U//']`_PREFIX])
+])
+RUBY_REPLACE_TYPE(pid_t, int, PIDT)
+RUBY_REPLACE_TYPE(uid_t, int, UIDT)
+RUBY_REPLACE_TYPE(gid_t, int, GIDT)
+RUBY_REPLACE_TYPE(time_t, [], TIMET, [@%:@include <time.h>])
+RUBY_REPLACE_TYPE(dev_t, [int long "long long"], DEVT)
+RUBY_REPLACE_TYPE(mode_t, ["unsigned int" long], MODET, [@%:@include <sys/stat.h>])
+RUBY_REPLACE_TYPE(rlim_t, [int long "long long"], RLIM, [
+@%:@ifdef HAVE_SYS_TYPES_H
+@%:@include <sys/types.h>
+@%:@endif
+@%:@ifdef HAVE_SYS_TYPES_H
+@%:@include <sys/time.h>
+@%:@endif
+@%:@include <sys/resource.h>
+])
+RUBY_REPLACE_TYPE(off_t, [], OFFT)
+RUBY_REPLACE_TYPE(clockid_t, [], CLOCKID)
+
+AC_CACHE_CHECK(for prototypes, rb_cv_have_prototypes,
+  [AC_TRY_COMPILE([int foo(int x) { return 0; }], [return foo(10);],
+	rb_cv_have_prototypes=yes,
+	rb_cv_have_prototypes=no)])
+if test "$rb_cv_have_prototypes" = yes; then
+  AC_DEFINE(HAVE_PROTOTYPES)
+fi
+
+AC_CACHE_CHECK(token paste string, rb_cv_tokenpaste,
+  [AC_TRY_COMPILE([@%:@define paste(a,b) a@%:@@%:@b],
+		  [int xy = 1; return paste(x,y);],
+		  rb_cv_tokenpaste=ansi,
+		  rb_cv_tokenpaste=knr)])
+if test "$rb_cv_tokenpaste" = ansi; then
+  AC_DEFINE(TOKEN_PASTE(x,y),[x@%:@@%:@y])
+else
+  AC_DEFINE(TOKEN_PASTE(x,y),[x/**/y])
+fi
+
+AC_CACHE_CHECK(stringization, rb_cv_stringization, [
+  rb_cv_stringization=no
+  for string in "#expr" '"expr"'; do
+    AC_COMPILE_IFELSE([
+      AC_LANG_BOOL_COMPILE_TRY([
+#define STRINGIZE0(expr) $string
+#define STRINGIZE(expr) STRINGIZE0(expr)
+#undef real_test_for_stringization
+#define test_for_stringization -.real_test_for_stringization.-
+const char stringized[[]] = STRINGIZE(test_for_stringization);
+], [sizeof(stringized) == 32])],
+      [rb_cv_stringization="$string"; break],
+      [rb_cv_stringization=no])
+  done]
+)
+AC_DEFINE(STRINGIZE(expr),STRINGIZE0(expr))
+if test x"$rb_cv_stringization" != xno -a "$rb_cv_stringization" != "#expr"; then
+  AC_DEFINE_UNQUOTED(STRINGIZE0(expr),$rb_cv_stringization)
+  AC_DEFINE(OLD_FASHIONED_STRINGIZATION,1)
+fi
+
+AC_CACHE_CHECK([string literal concatenation],
+  rb_cv_string_literal_concatenation, [
+  AC_COMPILE_IFELSE([
+    AC_LANG_BOOL_COMPILE_TRY([
+const char concatenated_literal[[]] = "literals" "to"
+  "be" "concatenated.";
+], [sizeof(concatenated_literal) == 26])],
+    [rb_cv_string_literal_concatenation=yes],
+    [rb_cv_string_literal_concatenation=no])]
+)
+if test "$rb_cv_string_literal_concatenation" = no; then
+  AC_DEFINE(NO_STRING_LITERAL_CONCATENATION,1)
+fi
+
+AC_CACHE_CHECK(for variable length prototypes and stdarg.h, rb_cv_stdarg,
+  [AC_TRY_COMPILE([
+#include <stdarg.h>
+int foo(int x, ...) {
+	va_list va;
+	va_start(va, x);
+	va_arg(va, int);
+	va_arg(va, char *);
+	va_arg(va, double);
+	return 0;
+}
+], [return foo(10, "", 3.14);],
+	rb_cv_stdarg=yes,
+	rb_cv_stdarg=no)])
+if test "$rb_cv_stdarg" = yes; then
+  AC_DEFINE(HAVE_STDARG_PROTOTYPES)
+fi
+
+AC_CACHE_CHECK(for variable length macro, rb_cv_va_args_macro,
+  [AC_TRY_COMPILE([
+int foo(int x, ...);
+@%:@define FOO(a, ...) foo(a, @%:@@%:@__VA_ARGS__)
+], [FOO(1);FOO(1,2);FOO(1,2,3);],
+  rb_cv_va_args_macro=yes,
+  rb_cv_va_args_macro=no)])
+if test "$rb_cv_va_args_macro" = yes; then
+  AC_DEFINE(HAVE_VA_ARGS_MACRO)
+fi
+
+AC_DEFUN([RUBY_DEFINE_IF], [dnl
+    m4_ifval([$1], [AS_LITERAL_IF([$1], [], [test "X$1" = X || ])cat <<EOH >> confdefs.h
+@%:@if $1
+EOH
+])dnl
+AC_DEFINE_UNQUOTED($2, $3)dnl
+    m4_ifval([$1], [AS_LITERAL_IF([$1], [], [test "X$1" = X || ])cat <<EOH >> confdefs.h
+@%:@endif /* $1 */
+EOH
+])dnl
+])dnl
+
+dnl RUBY_FUNC_ATTRIBUTE(attrib, macroname, cachevar, condition)
+AC_DEFUN([RUBY_FUNC_ATTRIBUTE], [dnl
+m4_ifval([$2], dnl
+  [AS_VAR_PUSHDEF([attrib],[$2])], dnl
+  [AS_VAR_PUSHDEF([attrib],[FUNC_]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
+)dnl
+m4_ifval([$4], [rbcv_cond=["$4"]; test "$rbcv_cond" || unset rbcv_cond])
+AC_CACHE_CHECK(for [$1] function attribute, rbcv,
+[rbcv=x
+RUBY_WERROR_FLAG([
+for mac in "__attribute__ (($1)) x" "x __attribute__ (($1))" "__declspec($1) 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]
+m4_ifval([$4],${rbcv_cond+[@%:@else]}
+${rbcv_cond+[@%:@define ]attrib[(x) x]}
+${rbcv_cond+[@%:@endif]})
+    attrib[(void conftest_attribute_check(void));], [],
+    [rbcv="$mac"; break])
+done
+])])
+if test "$rbcv" != x; then
+    RUBY_DEFINE_IF(m4_ifval([$4],[${rbcv_cond}]), attrib[(x)], $rbcv)
+fi
+m4_ifval([$4], [unset rbcv_cond])dnl
+AS_VAR_POPDEF([attrib])dnl
+AS_VAR_POPDEF([rbcv])dnl
+])
+
+RUBY_FUNC_ATTRIBUTE(noreturn, NORETURN)
+RUBY_FUNC_ATTRIBUTE(deprecated, DEPRECATED)
+RUBY_FUNC_ATTRIBUTE(noinline, NOINLINE)
+
+if_i386=${universal_binary+[defined __i386__]}
+RUBY_FUNC_ATTRIBUTE(stdcall,  [], [], ${if_i386})
+RUBY_FUNC_ATTRIBUTE(cdecl,    [], [], ${if_i386})
+RUBY_FUNC_ATTRIBUTE(fastcall, [], [], ${if_i386})
+
+if test "$GCC" = yes; then
+    AC_CACHE_CHECK([for function alias], [rb_cv_gcc_function_alias],
+	[rb_cv_gcc_function_alias=no
+	for a in alias weak,alias; do
+	    AC_TRY_LINK([void foo(void) {}
+		void bar(void) __attribute__(($a("foo")));], [bar()],
+		[rb_cv_gcc_function_alias=$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_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);
+		    ],
+		    [rb_cv_gcc_atomic_builtins=yes],
+		    [rb_cv_gcc_atomic_builtins=no])])
+    if test "$rb_cv_gcc_atomic_builtins" = yes; then
+	AC_DEFINE(HAVE_GCC_ATOMIC_BUILTINS)
+    fi
+
+    AC_CACHE_CHECK(for __builtin_unreachable, rb_cv_func___builtin_unreachable,
+    [RUBY_WERROR_FLAG(
+    [AC_TRY_LINK([@%:@include <stdlib.h>],
+	[exit(0); __builtin_unreachable();],
+	[rb_cv_func___builtin_unreachable=yes],
+	[rb_cv_func___builtin_unreachable=no])
+    ])
+    ])
+    if test "$rb_cv_func___builtin_unreachable" = yes; then
+	AC_DEFINE_UNQUOTED(UNREACHABLE, [__builtin_unreachable()])
+    fi
+fi
+
+AC_CACHE_CHECK(for exported function attribute, rb_cv_func_exported, [
+rb_cv_func_exported=no
+RUBY_WERROR_FLAG([
+for mac in '__attribute__ ((visibility("default")))' '__declspec(dllexport)'; do
+  AC_TRY_COMPILE([@%:@define RUBY_FUNC_EXPORTED $mac extern
+    RUBY_FUNC_EXPORTED void conftest_attribute_check(void);], [],
+    [rb_cv_func_exported="$mac"; break])
+done
+])])
+if test "$rb_cv_func_exported" != no; then
+    AC_DEFINE_UNQUOTED(RUBY_FUNC_EXPORTED, [$rb_cv_func_exported extern])
+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
+
+dnl Check whether we need to define sys_nerr locally
+AC_CHECK_DECLS([sys_nerr], [], [], [$ac_includes_default
+@%:@include <errno.h>])
+
+AC_CHECK_DECLS([getenv])
+
+AS_CASE(["$target_cpu"],
+[alpha*|sh4|sh4el|sh4eb], [AS_CASE(["$target_os"::"$GCC"],
+		[*::yes],  # gcc
+			[CFLAGS="-mieee $CFLAGS"],
+		[osf*],    # ccc
+			[CFLAGS="-ieee $CFLAGS"],
+		)],
+[sparc*], [AC_LIBOBJ([sparc])])
+
+ac_cv_header_net_socket_h=${ac_cv_header_net_socket_h=no}
+if test "$ac_cv_header_net_socket_h" = yes; then
+    ac_cv_header_sys_socket_h=${ac_cv_header_sys_socket_h=no}
+else
+    ac_cv_header_sys_socket_h=${ac_cv_header_sys_socket_h=yes}
+fi
+
+
+AC_TYPE_SIZE_T
+RUBY_CHECK_SIGNEDNESS(size_t, [AC_MSG_ERROR(size_t is signed)], [],
+		      [@%:@include <sys/types.h>])
+RUBY_CHECK_SIZEOF(size_t, [int long void*], [], [@%:@include <sys/types.h>])
+RUBY_CHECK_SIZEOF(ptrdiff_t, size_t, [], [@%:@include <stddef.h>])
+RUBY_CHECK_PRINTF_PREFIX(size_t, z)
+RUBY_CHECK_PRINTF_PREFIX(ptrdiff_t, t)
+AC_STRUCT_ST_BLKSIZE
+AC_STRUCT_ST_BLOCKS
+AC_STRUCT_ST_RDEV
+RUBY_CHECK_SIZEOF([struct stat.st_size], [int long "long long"], [], [@%:@include <sys/stat.h>])
+if test "$ac_cv_member_struct_stat_st_blocks" = yes; then
+    RUBY_CHECK_SIZEOF([struct stat.st_blocks], [int long "long long"], [], [@%:@include <sys/stat.h>])
+fi
+AC_CHECK_MEMBERS([struct stat.st_atim])
+AC_CHECK_MEMBERS([struct stat.st_atimespec])
+AC_CHECK_MEMBERS([struct stat.st_atimensec])
+AC_CHECK_MEMBERS([struct stat.st_mtim])
+AC_CHECK_MEMBERS([struct stat.st_mtimespec])
+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_TYPES([struct timeval], [], [], [@%:@ifdef HAVE_TIME_H
+@%:@include <time.h>
+@%:@endif
+@%:@ifdef HAVE_SYS_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
+@%:@ifdef HAVE_SYS_TIME_H
+@%:@include <sys/time.h>
+@%:@endif])
+
+AC_CHECK_TYPES([struct timezone], [], [], [@%:@ifdef HAVE_TIME_H
+@%:@ include <time.h>
+@%:@endif
+@%:@ifdef HAVE_SYS_TIME_H
+@%:@ include <sys/time.h>
+@%:@endif])
+
+AC_CHECK_TYPES([clockid_t], [], [], [@%:@ifdef HAVE_TIME_H
+@%:@ include <time.h>
+@%:@endif
+@%:@ifdef HAVE_SYS_TIME_H
+@%:@ include <sys/time.h>
+@%:@endif])
+
+AC_CACHE_VAL([rb_cv_large_fd_select],
+    [AC_CHECK_TYPE(fd_mask, [rb_cv_large_fd_select=yes], [rb_cv_large_fd_select=no])])
+if test "$rb_cv_large_fd_select" = yes; then
+    AC_DEFINE(HAVE_RB_FD_INIT, 1)
+fi
+
+dnl RUBY_DEFINT TYPENAME, SIZE, [SIGNED-OR-UNSIGNED], [INCLUDES = DEFAULT-INCLUDES]
+AC_DEFUN([RUBY_DEFINT], [dnl
+AC_CACHE_CHECK([for $1], [rb_cv_type_$1],
+[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT([$4])
+typedef $1 t; int s = sizeof(t) == 42;])],
+   [rb_cv_type_$1=yes],
+   [AS_CASE([m4_bmatch([$2], [^[1-9][0-9]*$], $2, [$ac_cv_sizeof_]AS_TR_SH($2))],
+    ["1"], [ rb_cv_type_$1="m4_if([$3], [], [signed ], [$3 ])char"],
+    ["$ac_cv_sizeof_short"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])short"],
+    ["$ac_cv_sizeof_int"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])int"],
+    ["$ac_cv_sizeof_long"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])long"],
+    ["$ac_cv_sizeof_long_long"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])long long"],
+    ["$ac_cv_sizeof___int64"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])__int64"],
+    ["$ac_cv_sizeof___int128"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])__int128"],
+    [ rb_cv_type_$1=no])])])
+if test "${rb_cv_type_$1}" != no; then
+    AC_DEFINE([HAVE_]AS_TR_CPP($1), 1)
+    if test "${rb_cv_type_$1}" = yes; then
+	m4_bmatch([$2], [^[1-9][0-9]*$], [AC_CHECK_SIZEOF([$1], 0, [AC_INCLUDES_DEFAULT([$4])])],
+			[RUBY_CHECK_SIZEOF([$1], [$2], [], [AC_INCLUDES_DEFAULT([$4])])])
+    else
+	AC_DEFINE_UNQUOTED($1, [$rb_cv_type_$1])
+	AC_DEFINE_UNQUOTED([SIZEOF_]AS_TR_CPP($1), [SIZEOF_]AS_TR_CPP([$rb_cv_type_$1]))
+    fi
+fi
+])
+
+RUBY_DEFINT(int8_t, 1)
+RUBY_DEFINT(uint8_t, 1, unsigned)
+RUBY_DEFINT(int16_t, 2)
+RUBY_DEFINT(uint16_t, 2, unsigned)
+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.
+
+RUBY_NACL_CHECK_PEPPER_TYPES
+
+AC_CACHE_CHECK(for stack end address, rb_cv_stack_end_address,
+[rb_cv_stack_end_address=no
+  AC_TRY_LINK(
+    [extern void *__libc_stack_end;],
+    [if (!__libc_stack_end) return 1;],
+    [rb_cv_stack_end_address="__libc_stack_end"])
+])
+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*|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
+       AC_TRY_RUN([
+#include <math.h>
+#include <unistd.h>
+
+int
+main() {
+  if ((int)log2((double)sysconf(_SC_PAGESIZE)) != $page_log) return 1;
+  return 0;
+}
+       ],
+       rb_cv_page_size_log="$page_log"; break)
+     done])
+  if test $rb_cv_page_size_log != no; then
+    AC_DEFINE_UNQUOTED(HEAP_ALIGN_LOG, $rb_cv_page_size_log)
+  else
+    AC_DEFINE_UNQUOTED(HEAP_ALIGN_LOG, 12)
+  fi
+])
+
+dnl Checks for library functions.
+AC_TYPE_GETGROUPS
+AC_TYPE_SIGNAL
+AS_CASE(["${target_cpu}-${target_os}:${target_archs}"],
+[powerpc-darwin*], [
+  AC_LIBSOURCES(alloca.c)
+  AC_SUBST([ALLOCA], [\${LIBOBJDIR}alloca.${ac_objext}])
+  AC_DEFINE(C_ALLOCA)
+  AC_DEFINE_UNQUOTED(alloca, alloca)
+  ],
+[universal-darwin*:*ppc*], [
+  AC_LIBSOURCES(alloca.c)
+  AC_SUBST([ALLOCA], [\${LIBOBJDIR}alloca.${ac_objext}])
+  RUBY_DEFINE_IF([defined __powerpc__], C_ALLOCA, 1)
+  RUBY_DEFINE_IF([defined __powerpc__], alloca, alloca)
+  ],
+[
+  AC_FUNC_ALLOCA
+  ])
+if test "x$ALLOCA" = "x"; then
+    AC_CACHE_CHECK([for dynamic size alloca], rb_cv_dynamic_alloca, [
+    for chk in ok __chkstk; do
+	AC_TRY_LINK([
+	    @%:@ifdef HAVE_ALLOCA_H
+	    @%:@include <alloca.h>
+	    @%:@endif
+	    void $chk() {}
+	    int dynamic_alloca_test;
+	    int dynamic_alloca_result;],
+	    [dynamic_alloca_result = alloca(dynamic_alloca_test) != 0;],
+	    [rb_cv_dynamic_alloca=$chk; break])
+    done])
+    if test "x$rb_cv_dynamic_alloca" = "x__chkstk"; then
+	AC_DEFINE_UNQUOTED(RUBY_ALLOCA_CHKSTK, _$rb_cv_dynamic_alloca)
+	AS_CASE("$target_cpu",
+	[x64|x86_64], [
+	    AC_SUBST([ALLOCA], [\${LIBOBJDIR}x86_64-chkstk.${ac_objext}])
+	],)
+    fi
+fi
+AC_FUNC_MEMCMP
+
+# http://sources.redhat.com/ml/libc-hacker/2005-08/msg00008.html
+# Debian GNU/Linux Etch's libc6.1 2.3.6.ds1-13etch5 has this problem.
+# Debian GNU/Linux Lenny's libc6.1 2.7-10 has no problem.
+AC_CACHE_CHECK(for broken erfc of glibc-2.3.6 on IA64, rb_cv_broken_glibc_ia64_erfc,
+  [AC_TRY_RUN([
+#include <math.h>
+int
+main()
+{
+   erfc(10000.0);
+   return 0;
+}
+],
+	rb_cv_broken_glibc_ia64_erfc=no,
+	rb_cv_broken_glibc_ia64_erfc=yes,
+	rb_cv_broken_glibc_ia64_erfc=no)])
+AS_CASE([$rb_cv_broken_glibc_ia64_erfc],[yes],[ac_cv_func_erf=no])
+
+AS_CASE(["$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)
+
+# for missing/setproctitle.c
+AS_CASE(["$target_os"],
+[aix* | k*bsd*-gnu | kopensolaris*-gnu | linux* | darwin*], [AC_DEFINE(SPT_TYPE,SPT_REUSEARGV)],
+[hpux*], [AC_DEFINE(SPT_TYPE,SPT_PSTAT) ],
+[])
+AC_CHECK_HEADERS(sys/pstat.h)
+
+
+AC_CACHE_CHECK(for signbit, rb_cv_have_signbit,
+  [AC_TRY_LINK([
+#include <math.h>
+], [int v = signbit(-0.0);],
+	rb_cv_have_signbit=yes,
+	rb_cv_have_signbit=no)])
+if test "$rb_cv_have_signbit" = yes; then
+  AC_DEFINE(HAVE_SIGNBIT)
+else
+  AC_LIBOBJ([signbit])
+fi
+
+AC_CHECK_FUNCS(__syscall)
+AC_CHECK_FUNCS(_longjmp)		# used for AC_ARG_WITH(setjmp-type)
+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(chroot)
+AC_CHECK_FUNCS(chsize)
+AC_CHECK_FUNCS(clock_gettime)
+AC_CHECK_FUNCS(cosh)
+AC_CHECK_FUNCS(daemon)
+AC_CHECK_FUNCS(dl_iterate_phdr)
+AC_CHECK_FUNCS(dlopen)
+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(fmod)
+AC_CHECK_FUNCS(fork)
+AC_CHECK_FUNCS(fsync)
+AC_CHECK_FUNCS(ftruncate)
+AC_CHECK_FUNCS(ftruncate64)		# used for Win32 platform
+AC_CHECK_FUNCS(getcwd)
+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(getrlimit)
+AC_CHECK_FUNCS(getsid)
+AC_CHECK_FUNCS(gettimeofday)		# for making ac_cv_func_gettimeofday
+AC_CHECK_FUNCS(gmtime_r)
+AC_CHECK_FUNCS(initgroups)
+AC_CHECK_FUNCS(ioctl)
+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(mblen)
+AC_CHECK_FUNCS(memalign)
+AC_CHECK_FUNCS(memrchr)
+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(readlink)
+AC_CHECK_FUNCS(round)
+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)
+
+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([], [$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_$1))
+fi])
+RUBY_CHECK_BUILTIN_FUNC(__builtin_bswap32, [__builtin_bswap32(0)])
+RUBY_CHECK_BUILTIN_FUNC(__builtin_bswap64, [__builtin_bswap64(0)])
+RUBY_CHECK_BUILTIN_FUNC(__builtin_clz, [__builtin_clz(0)])
+RUBY_CHECK_BUILTIN_FUNC(__builtin_clzl, [__builtin_clzl(0)])
+RUBY_CHECK_BUILTIN_FUNC(__builtin_clzll, [__builtin_clzll(0)])
+
+# Some platform need -lrt for clock_gettime, but the other don't.
+if test x"$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"$ac_cv_lib_rt_clock_gettime" = xyes; then
+	AC_DEFINE(HAVE_CLOCK_GETTIME, 1)
+    fi
+fi
+AC_CHECK_FUNCS(clock_getres) # clock_getres should be tested after clock_gettime test including librt test.
+
+AC_CACHE_CHECK(for unsetenv returns a value, rb_cv_unsetenv_return_value,
+  [AC_TRY_COMPILE([
+#include <stdlib.h>
+], [int v = unsetenv("foo");],
+	rb_cv_unsetenv_return_value=yes,
+	rb_cv_unsetenv_return_value=no)])
+if test "$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_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])
+])
+
+# we don't use _setjmp if _longjmp doesn't exist.
+test x$ac_cv_func__longjmp = xno && ac_cv_func__setjmp=no
+
+AC_MSG_CHECKING(for setjmp type)
+setjmp_suffix=
+AC_ARG_WITH(setjmp-type,
+	AS_HELP_STRING([--with-setjmp-type], [select setjmp type]),
+	[
+	AS_CASE([$withval],
+	[__builtin_setjmp], [setjmp=__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])
+if test ${setjmp_prefix+set}; then
+    if test "${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
+    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(${setjmp_prefix}setjmp${setjmp_suffix})
+AC_DEFINE_UNQUOTED([RUBY_SETJMP(env)], [${setjmp_prefix}setjmp${setjmp_suffix}(env${setjmp_sigmask+,0})])
+AC_DEFINE_UNQUOTED([RUBY_LONGJMP(env,val)], [${setjmp_prefix}longjmp(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]),
+       [use_setreuid=$enableval])
+if test "$use_setreuid" = yes; then
+    AC_DEFINE(USE_SETREUID)
+    AC_DEFINE(USE_SETREGID)
+fi
+AC_STRUCT_TIMEZONE
+AC_CACHE_CHECK(for struct tm.tm_gmtoff, rb_cv_member_struct_tm_tm_gmtoff,
+  [AC_TRY_COMPILE([@%:@include <time.h>],
+    [struct tm t; t.tm_gmtoff = 3600;],
+  [rb_cv_member_struct_tm_tm_gmtoff=yes],
+  [rb_cv_member_struct_tm_tm_gmtoff=no])])
+if test "$rb_cv_member_struct_tm_tm_gmtoff" = yes; then
+  AC_DEFINE(HAVE_STRUCT_TM_TM_GMTOFF)
+fi
+AC_CACHE_CHECK(for external int daylight, rb_cv_have_daylight,
+  [AC_TRY_LINK([#include <time.h>
+  int i;],
+	[i = daylight;],
+	rb_cv_have_daylight=yes,
+	rb_cv_have_daylight=no)])
+if test "$rb_cv_have_daylight" = yes; then
+  AC_DEFINE(HAVE_DAYLIGHT)
+fi
+AC_DEFUN([RUBY_CHECK_VARTYPE], [dnl
+AC_CACHE_CHECK([for external $1], AS_TR_SH(rb_cv_var_$1),
+  [AS_TR_SH(rb_cv_var_$1)=no
+  AC_TRY_COMPILE([
+#ifndef _XOPEN_SOURCE
+#define _XOPEN_SOURCE 1
+#endif
+$2
+;
+const volatile void *volatile t;],
+    [t = &(&$1)[0];],
+    [for t in $3; do
+      AC_TRY_COMPILE([
+#ifndef _XOPEN_SOURCE
+#define _XOPEN_SOURCE 1
+#endif
+$2
+;
+extern $t $1;
+const volatile void *volatile t;],
+        [t = &(&$1)[0];],
+        [AS_TR_SH(rb_cv_var_$1)=$t; break])
+    done])])
+if test "${AS_TR_SH(rb_cv_var_$1)}" != no; then
+  AC_DEFINE(AS_TR_CPP(HAVE_VAR_$1))
+  AC_DEFINE_UNQUOTED(AS_TR_CPP(TYPEOF_VAR_$1), ${AS_TR_SH(rb_cv_var_$1)})
+fi])
+RUBY_CHECK_VARTYPE(timezone, [@%:@include <time.h>], [long int])
+RUBY_CHECK_VARTYPE(altzone, [@%:@include <time.h>], [long int])
+AC_CHECK_FUNCS(timezone)
+if test "$ac_cv_func_timezone" = yes; then
+  AC_CACHE_CHECK([whether timezone requires zero arguments], rb_cv_func_timezone_void,
+    [AC_TRY_COMPILE([@%:@include <time.h>],
+      [(void)timezone(0, 0);],
+      [rb_cv_func_timezone_void=no],
+      [rb_cv_func_timezone_void=yes])]
+  )
+  if test $rb_cv_func_timezone_void = yes; then
+    AC_DEFINE(TIMEZONE_VOID)
+  fi
+fi
+
+AC_CACHE_CHECK(for negative time_t for gmtime(3), rb_cv_negative_time_t,
+  [AC_TRY_RUN([
+#include <stdlib.h>
+#include <time.h>
+
+void
+check(tm, y, m, d, h, s)
+    struct tm *tm;
+    int y, m, d, h, s;
+{
+    if (!tm ||
+	tm->tm_year != y ||
+	tm->tm_mon  != m-1 ||
+	tm->tm_mday != d ||
+	tm->tm_hour != h ||
+	tm->tm_sec  != s) {
+	exit(1);
+    }
+}
+
+int
+main()
+{
+   time_t t = -1;
+   struct tm *tm;
+
+   check(gmtime(&t), 69, 12, 31, 23, 59);
+   t = ~(time_t)0 << 31;
+   check(gmtime(&t), 1, 12, 13, 20, 52);
+   return 0;
+}
+],
+	rb_cv_negative_time_t=yes,
+	rb_cv_negative_time_t=no,
+	rb_cv_negative_time_t=yes)])
+if test "$rb_cv_negative_time_t" = yes; then
+  AC_DEFINE(NEGATIVE_TIME_T)
+fi
+
+# [ruby-dev:40910] overflow of time on FreeBSD
+# http://www.freebsd.org/cgi/query-pr.cgi?pr=145341
+AC_CACHE_CHECK(for localtime(3) overflow correctly, rb_cv_localtime_overflow,
+  [AC_TRY_RUN([
+#include <stdlib.h>
+#include <time.h>
+
+void
+check(time_t t1)
+{
+    struct tm *tm;
+    time_t t2;
+    tm = localtime(&t1);
+    if (!tm)
+	return; /* overflow detected.  ok. */
+    t2 = mktime(tm);
+    if (t1 == t2)
+        return; /* round-trip.  ok. */
+    exit(1);
+}
+
+int
+main()
+{
+    time_t t;
+    if (~(time_t)0 <= 0) {
+        t = (((time_t)1) << (sizeof(time_t) * 8 - 2));
+        t |= t - 1;
+    }
+    else {
+        t = ~(time_t)0;
+    }
+    check(t);
+    return 0;
+}
+],
+	rb_cv_localtime_overflow=yes,
+	rb_cv_localtime_overflow=no,
+	rb_cv_localtime_overflow=no)])
+if test "$rb_cv_localtime_overflow" = no; then
+  AC_DEFINE(LOCALTIME_OVERFLOW_PROBLEM)
+fi
+
+if test "$ac_cv_func_sigprocmask" = yes && test "$ac_cv_func_sigaction" = yes; then
+   AC_DEFINE(POSIX_SIGNAL)
+else
+  AC_CHECK_FUNCS(sigsetmask)
+  AC_CACHE_CHECK(for BSD signal semantics, rb_cv_bsd_signal,
+    [AC_TRY_RUN([
+#include <stdio.h>
+#include <signal.h>
+
+void
+sig_handler(dummy)
+     int dummy;
+{
+}
+
+int
+main()
+{
+  signal(SIGINT, sig_handler);
+  kill(getpid(), SIGINT);
+  kill(getpid(), SIGINT);
+  return 0;
+}
+],
+	rb_cv_bsd_signal=yes,
+	rb_cv_bsd_signal=no,
+	rb_cv_bsd_signal=$ac_cv_func_sigsetmask)])
+  if test "$rb_cv_bsd_signal" = yes; then
+    AC_DEFINE(BSD_SIGNAL)
+  fi
+fi
+
+if test "$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"$target_cpu" = xia64; then
+    AC_LIBOBJ([ia64])
+    AC_CACHE_CHECK(for __libc_ia64_register_backing_store_base,
+                   rb_cv___libc_ia64_register_backing_store_base,
+    [rb_cv___libc_ia64_register_backing_store_base=no
+    AC_TRY_LINK(
+      [extern unsigned long __libc_ia64_register_backing_store_base;],
+      [unsigned long p = __libc_ia64_register_backing_store_base;
+       printf("%ld\n", p);],
+      [rb_cv___libc_ia64_register_backing_store_base=yes])])
+    if test $rb_cv___libc_ia64_register_backing_store_base = yes; then
+      AC_DEFINE(HAVE___LIBC_IA64_REGISTER_BACKING_STORE_BASE)
+    fi
+fi
+
+AC_CACHE_CHECK(whether right shift preserve sign bit, rb_cv_rshift_sign,
+    [AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([], [(-1==(-1>>1))])],
+	rb_cv_rshift_sign=yes,
+	rb_cv_rshift_sign=no)])
+if test "$rb_cv_rshift_sign" = yes; then
+  AC_DEFINE(RSHIFT(x,y), ((x)>>(int)(y)))
+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, $rb_cv_frend)
+    fi
+  fi
+fi
+
+if test x"$ac_cv_func_gettimeofday" != xyes; then
+    AC_MSG_ERROR(gettimeofday() must exist)
+fi
+
+RUBY_CHECK_SIZEOF([struct stat.st_ino], [long "long long"], [], [@%:@include <sys/stat.h>])
+
+if test "$ac_cv_func_sysconf" = yes; then
+  AC_DEFUN([RUBY_CHECK_SYSCONF], [dnl
+  AC_CACHE_CHECK([whether _SC_$1 is supported], rb_cv_have_sc_[]m4_tolower($1),
+    [AC_TRY_COMPILE([#include <unistd.h>
+      ],
+      [_SC_$1 >= 0],
+      rb_cv_have_sc_[]m4_tolower($1)=yes,
+      rb_cv_have_sc_[]m4_tolower($1)=no)
+    ])
+  if test "$rb_cv_have_sc_[]m4_tolower($1)" = yes; then
+    AC_DEFINE(HAVE__SC_$1)
+  fi
+  ])
+  RUBY_CHECK_SYSCONF(CLK_TCK)
+fi
+
+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"],
+[m68*|x86*|x64|i?86|ia64|ppc*|sparc*|alpha*], [ $2=-1],
+[hppa*], [ $2=+1],
+[
+  AC_TRY_RUN([
+/* recurse to get rid of inlining */
+static int
+stack_growup_p(addr, n)
+    volatile int *addr, n;
+{
+    volatile int end;
+    if (n > 0)
+	return *addr = stack_growup_p(addr, n - 1);
+    else
+	return (&end > addr);
+}
+int main()
+{
+    int x;
+    return stack_growup_p(&x, 10);
+}
+], $2=-1, $2=+1, $2=0)
+  ])
+eval stack_grow_dir=\$$2])
+eval $2=\$stack_grow_dir
+AS_VAR_POPDEF([stack_grow_dir])])
+if test "${universal_binary-no}" = yes ; then
+    archflagpat=`eval echo '"'"${ARCH_FLAG}"'"' | sed 's/[[][|.*]]/\\&/g'`
+    save_CFLAGS="$CFLAGS" new_cflags=`echo "$CFLAGS" | sed "s|$archflagpat"'||'`
+    save_LDFLAGS="$LDFLAGS" new_ldflags=`echo "$LDFLAGS" | sed "s|$archflagpat"'||'`
+    stack_dir=
+    for archs in ${universal_archnames}; do
+	archs=`echo $archs | sed 's/=.*//'`
+	CFLAGS="$new_cflags -arch $archs"
+	LDFLAGS="$new_ldflags -arch $archs"
+	RUBY_STACK_GROW_DIRECTION($archs, dir)
+	if test x$stack_dir = x; then
+	    stack_dir=$dir
+	elif test x$stack_dir != x$dir; then
+	    stack_dir=no
+	fi
+    done
+    CFLAGS="$save_CFLAGS" LDFLAGS="$save_LDFLAGS"
+    if test x$stack_dir = xno; then
+	for archs in ${universal_archnames}; do
+	    archs=`echo $archs | sed 's/=.*//'`
+	    eval dir=\$[rb_cv_stack_grow_dir_]AS_TR_SH([$archs])
+	    RUBY_DEFINE_IF([defined __${archs}__], STACK_GROW_DIRECTION, $dir)
+	done
+    else
+	AC_DEFINE_UNQUOTED(STACK_GROW_DIRECTION, $stack_dir)
+    fi
+else
+    RUBY_STACK_GROW_DIRECTION($target_cpu, dir)
+    AC_DEFINE_UNQUOTED(STACK_GROW_DIRECTION, $dir)
+fi
+
+if test x"$enable_pthread" = xyes; then
+    for pthread_lib in thr pthread pthreads c c_r root; do
+	AC_CHECK_LIB($pthread_lib, pthread_kill,
+		     rb_with_pthread=yes, rb_with_pthread=no)
+	if test "$rb_with_pthread" = "yes"; then break; fi
+    done
+    if test x"$rb_with_pthread" = xyes; then
+	AC_DEFINE(_REENTRANT)
+	AC_DEFINE(_THREAD_SAFE)
+	AC_DEFINE(HAVE_LIBPTHREAD)
+	AC_CHECK_HEADERS(pthread_np.h, [], [], [@%:@include <pthread.h>])
+	AS_CASE([$pthread_lib],
+	[c],    [],
+	[root], [],
+	[c_r],  [MAINLIBS="-pthread $MAINLIBS"],
+	        [AS_CASE(["$target_os"],
+		    [openbsd*|mirbsd*], [LIBS="-pthread $LIBS"],
+		    [LIBS="-l$pthread_lib $LIBS"])])
+    else
+	AC_MSG_WARN("Don't know how to find pthread library on your system -- thread support disabled")
+    fi
+    AC_CHECK_FUNCS(sched_yield pthread_attr_setinheritsched \
+	pthread_getattr_np pthread_attr_get_np pthread_attr_getstack\
+	pthread_get_stackaddr_np pthread_get_stacksize_np \
+	thr_stksegment pthread_stackseg_np pthread_getthrds_np \
+	pthread_cond_init pthread_condattr_setclock pthread_condattr_init \
+        pthread_sigmask)
+    if test "${host_os}" = "nacl"; then
+      ac_cv_func_pthread_attr_init=no
+    else
+      AC_CHECK_FUNCS(pthread_attr_init)
+    fi
+fi
+if test x"$ac_cv_header_ucontext_h" = xyes; then
+    if test x"$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
+    AC_CACHE_CHECK([if fork works with pthread], rb_cv_fork_with_pthread,
+	[AC_TRY_RUN([
+#include <stdlib.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <signal.h>
+#ifndef EXIT_SUCCESS
+#define EXIT_SUCCESS 0
+#endif
+#ifndef EXIT_FAILURE
+#define EXIT_FAILURE 1
+#endif
+
+void *
+thread_func(void *dmy)
+{
+    return dmy;
+}
+
+int
+use_threads(void)
+{
+    pthread_t tid;
+    if (pthread_create(&tid, 0, thread_func, 0) != 0) {
+	return -1;
+    }
+    if (pthread_join(tid, 0) != 0) {
+	return -1;
+    }
+    return 0;
+}
+
+int
+main(int argc, char *argv[])
+{
+    pid_t pid;
+    if (use_threads()) return EXIT_FAILURE;
+    pid = fork();
+
+    if (pid) {
+	int loc;
+	sleep(1);
+	if (waitpid(pid, &loc, WNOHANG) == 0) {
+	    kill(pid, SIGKILL);
+	    return EXIT_FAILURE;
+	}
+        if (!WIFEXITED(loc) || WEXITSTATUS(loc) != EXIT_SUCCESS)
+           return EXIT_FAILURE;
+    }
+    else {
+	if (use_threads()) return EXIT_FAILURE;
+    }
+
+    return EXIT_SUCCESS;
+}],
+	rb_cv_fork_with_pthread=yes,
+	rb_cv_fork_with_pthread=no,
+	rb_cv_fork_with_pthread=yes)])
+    test x$rb_cv_fork_with_pthread = xyes || AC_DEFINE(CANNOT_FORK_WITH_PTHREAD)
+fi
+
+
+}
+{ # runtime section
+
+dnl wheather use dln_a_out or not
+AC_ARG_WITH(dln-a-out,
+	AS_HELP_STRING([--with-dln-a-out], [use dln_a_out if possible]),
+	[
+	AS_CASE([$withval],
+	[yes], [
+	    if test "$enable_shared" = yes; then
+		AC_MSG_ERROR(dln_a_out can not make shared library)
+	    fi
+	    with_dln_a_out=yes],
+	[
+	    with_dln_a_out=no])], [with_dln_a_out=no])
+
+AC_CACHE_CHECK(whether ELF binaries are produced, rb_cv_binary_elf,
+[AC_TRY_LINK([],[], [
+AS_CASE(["`head -1 conftest$EXEEXT | cat -e`"],
+['^?ELF'*], [rb_cv_binary_elf=yes], [rb_cv_binary_elf=no])],
+rb_cv_binary_elf=no)])
+
+if test "$rb_cv_binary_elf" = yes; then
+  AC_DEFINE(USE_ELF)
+  if test "$with_dln_a_out" = yes; then
+    AC_MSG_ERROR(dln_a_out does not work with ELF)
+  fi
+  AC_CHECK_HEADERS([elf.h elf_abi.h])
+  if test $ac_cv_header_elf_h = yes -o $ac_cv_header_elf_abi_h = yes; then
+    AC_LIBOBJ([addr2line])
+  fi
+fi
+
+AS_CASE(["$target_os"],
+[linux* | gnu* | k*bsd*-gnu | bsdi* | kopensolaris*-gnu | nacl], [
+    if test "$rb_cv_binary_elf" = no; then
+	with_dln_a_out=yes
+    else
+	LDFLAGS="$LDFLAGS -rdynamic"
+    fi])
+LIBEXT=a
+
+AC_SUBST(DLDFLAGS)dnl
+AC_SUBST(ARCH_FLAG)dnl
+
+AC_SUBST(STATIC)dnl
+AC_SUBST(CCDLFLAGS)dnl
+AC_SUBST(LDSHARED)dnl
+AC_SUBST(LDSHAREDXX)dnl
+AC_SUBST(DLEXT)dnl
+AC_SUBST(DLEXT2)dnl
+AC_SUBST(LIBEXT)dnl
+
+STATIC=
+: ${PATHFLAG=''}
+
+if test "$with_dln_a_out" != yes; then
+  rb_cv_dlopen=unknown
+  AC_MSG_CHECKING(whether OS depend dynamic link works)
+  if test "$GCC" = yes; then
+    AS_CASE(["$target_os"],
+    [darwin*], [
+      # The -fno-common is needed if we wish to embed the Ruby interpreter
+      # into a plugin module of some project (as opposed to embedding it
+      # within the project's application).  The -I/usr/local/include is
+      # needed because CPP as discovered by configure (cc -E -traditional)
+      # fails to consult /usr/local/include by default.  This causes
+      # 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*], [ ],
+    [
+      RUBY_APPEND_OPTION(CCDLFLAGS, -fPIC)])
+  else
+    AS_CASE(["$target_os"],
+	[hpux*],          [CCDLFLAGS="$CCDLFLAGS +Z"],
+	[solaris*|irix*], [CCDLFLAGS="$CCDLFLAGS -KPIC"],
+	[sunos*],         [CCDLFLAGS="$CCDLFLAGS -PIC"],
+	[esix*|uxpds*],   [CCDLFLAGS="$CCDLFLAGS -KPIC"],
+	                  [: ${CCDLFLAGS=""}])
+  fi
+
+
+  AC_ARG_ENABLE(rpath,
+       AS_HELP_STRING([--enable-rpath], [embed run path into extension libraries.
+       enabled by default on ELF platforms]),
+       [enable_rpath=$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
+			    : ${LDSHARED='$(CC) -shared'}
+			    if test "$rb_cv_prog_gnu_ld" = yes; then
+				LDFLAGS="$LDFLAGS -Wl,-E"
+			    fi
+			else
+			    : ${LDSHARED='$(CC) -G'}
+			fi
+			if test "$ac_cv_sizeof_voidp" = 8; then
+			    : ${LIBPATHENV=LD_LIBRARY_PATH_64}
+			fi
+			rb_cv_dlopen=yes],
+	[sunos*], [	: ${LDSHARED='$(LD) -assert nodefinitions'}
+			rb_cv_dlopen=yes],
+	[irix*], [	: ${LDSHARED='$(LD) -shared'}
+			rb_cv_dlopen=yes],
+	[sysv4*], [	: ${LDSHARED='$(LD) -G'}
+			rb_cv_dlopen=yes],
+	[nto-qnx*], [	: ${LDSHARED='$(CC) -shared'}
+			rb_cv_dlopen=yes],
+	[esix*|uxpds*], [ : ${LDSHARED='$(LD) -G'}
+			rb_cv_dlopen=yes],
+	[osf*], [	: ${LDSHARED='$(LD) -shared -expect_unresolved "*"'}
+			rb_cv_dlopen=yes],
+	[bsdi3*], [	AS_CASE(["$CC"],
+			[*shlicc*], [	: ${LDSHARED='$(CC) -r'}
+					rb_cv_dlopen=yes])],
+	[linux* | gnu* | k*bsd*-gnu | netbsd* | bsdi* | kopensolaris*-gnu], [
+			: ${LDSHARED='$(CC) -shared'}
+			if test "$rb_cv_binary_elf" = yes; then
+			    LDFLAGS="$LDFLAGS -Wl,-export-dynamic"
+			fi
+			rb_cv_dlopen=yes],
+	[interix*], [	: ${LDSHARED='$(CC) -shared'}
+			XLDFLAGS="$XLDFLAGS -Wl,-E"
+			LIBPATHFLAG=" -L%1\$-s"
+			rb_cv_dlopen=yes],
+	[freebsd*|dragonfly*], [
+			: ${LDSHARED='$(CC) -shared'}
+			if test "$rb_cv_binary_elf" = yes; then
+			    LDFLAGS="$LDFLAGS -rdynamic"
+			    DLDFLAGS="$DLDFLAGS "'-Wl,-soname,$(.TARGET)'
+			else
+			  test "$GCC" = yes && test "$rb_cv_prog_gnu_ld" = yes || LDSHARED='$(LD) -Bshareable'
+			fi
+			rb_cv_dlopen=yes],
+	[openbsd*|mirbsd*], [	: ${LDSHARED='$(CC) -shared ${CCDLFLAGS}'}
+			if test "$rb_cv_binary_elf" = yes; then
+			    LDFLAGS="$LDFLAGS -Wl,-E"
+			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
+			rb_cv_dlopen=yes],
+        [aix*], [	: ${LDSHARED='$(CC)'}
+			LDSHARED="$LDSHARED ${linker_flag}-G"
+			EXTDLDFLAGS='-e$(TARGET_ENTRY)'
+			XLDFLAGS="${linker_flag}"'-bE:$(ARCHFILE)'" ${linker_flag}-brtl"
+			XLDFLAGS="$XLDFLAGS ${linker_flag}-blibpath:${prefix}/lib:${LIBPATH:-/usr/lib:/lib}"
+			: ${ARCHFILE="ruby.imp"}
+                        TRY_LINK='$(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*], [
+			    : ${LDSHARED='$(CC) -shared'}
+			    ])
+			: ${LIBPATHENV=LIBRARY_PATH}
+			rb_cv_dlopen=yes ],
+	[nto-qnx*], [	DLDFLAGS="$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"
+			rb_cv_dlopen=yes],
+	[cygwin*|mingw*], [
+			: ${LDSHARED='$(CC) -shared $(if $(filter-out -g -g0,$(debugflags)),,-s)'}
+			XLDFLAGS="$XLDFLAGS -Wl,--stack,0x00200000,--enable-auto-import"
+			DLDFLAGS="${DLDFLAGS} -Wl,--enable-auto-image-base,--enable-auto-import"
+			: ${LIBPATHENV=""}
+			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)'}])
+  AC_MSG_RESULT($rb_cv_dlopen)
+fi
+if test "${LDSHAREDXX}" = ""; then
+    AS_CASE(["${LDSHARED}"],
+	[*'$(CC)'*], [
+	    LDSHAREDXX=`echo "${LDSHARED}" | sed 's/\$(CC)/$(CXX)/'`
+	    ],
+	[*'${CC}'*], [
+	    LDSHAREDXX=`echo "${LDSHARED}" | sed 's/\${CC}/${CXX}/'`
+	    ],
+	[*$CC*], [
+	    LDSHAREDXX=`echo "${LDSHARED}" | sed "s|$CC|$CXX|"`
+	    ],
+	[ld" "*], [
+	    ])
+fi
+AS_CASE([${RPATHFLAG}],[*'%1$'*],[: ${LIBPATHFLAG=' -L%1$-s'}],[: ${LIBPATHFLAG=' -L%s'}])
+
+AC_SUBST(LINK_SO)
+AC_SUBST(LIBPATHFLAG)
+AC_SUBST(RPATHFLAG)
+AC_SUBST(LIBPATHENV, "${LIBPATHENV-LD_LIBRARY_PATH}")
+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"
+		test x"${LDFLAGS}" = x || LDFLAGS="$LDFLAGS "
+		LDFLAGS="$LDFLAGS$val"
+		test x"${DLDFLAGS}" = x || DLDFLAGS="$DLDFLAGS "
+		DLDFLAGS="$DLDFLAGS$val"
+	])
+
+AS_CASE(["$target_cpu-$target_os"],
+[*-darwin*], [
+    AC_CHECK_HEADERS([execinfo.h])
+    if test "x$ac_cv_header_execinfo_h" = xyes; then
+	AC_CHECK_LIB([execinfo], [backtrace])
+    fi],
+[*-freebsd*|x86_64-netbsd*], [
+    AC_CHECK_HEADERS([execinfo.h])
+    if test "x$ac_cv_header_execinfo_h" = xyes; then
+	AC_CHECK_LIB([execinfo], [backtrace])
+	AC_CHECK_LIB([unwind], [unw_backtrace])
+    fi])
+AC_CHECK_FUNCS(backtrace)
+
+if test "x$ac_cv_func_backtrace" = xyes; then
+  AC_CACHE_CHECK(for broken backtrace, rb_cv_broken_backtrace,
+    [AC_TRY_RUN([
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <signal.h>
+#include <execinfo.h>
+
+#define TRACE_SIZE 256
+
+void sigsegv(int signum, siginfo_t *info, void *ctx){
+    void *trace[TRACE_SIZE];
+    int n = backtrace(trace, TRACE_SIZE);
+    if (n > 0) {
+	/*fprintf(stdout, "backtrace:%d\n",n);*/
+    } else {
+	abort();
+    }
+    _exit(0);
+}
+int
+main()
+{
+    stack_t ss;
+    ss.ss_sp = malloc(SIGSTKSZ);
+    if (ss.ss_sp == NULL) {
+	fprintf(stderr, "cannot allocate memory for sigaltstack\n");
+	abort();
+    }
+    ss.ss_size = SIGSTKSZ;
+    ss.ss_flags = 0;
+    if (sigaltstack(&ss, NULL) == -1) {
+	fprintf(stderr, "sigaltstack failed\n");
+	abort();
+    }
+    struct sigaction sa;
+    memset(&sa, 0, sizeof(struct sigaction));
+    sigemptyset(&sa.sa_mask);
+    sa.sa_sigaction = sigsegv;
+    sa.sa_flags |= SA_SIGINFO;
+    sa.sa_flags |= SA_ONSTACK;
+    sigaction(SIGSEGV, &sa, NULL);
+    int *a = NULL;
+    a[0] = 1;
+    return 0;
+}
+],
+	rb_cv_broken_backtrace=no,
+	rb_cv_broken_backtrace=yes,
+	rb_cv_broken_backtrace=no)])
+  if test "$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)
+AS_IF([test x$with_valgrind != xno],
+        [AC_CHECK_HEADERS(valgrind/memcheck.h)])
+
+dln_a_out_works=no
+if test "$ac_cv_header_a_out_h" = yes; then
+  if test "$with_dln_a_out" = yes || test "$rb_cv_dlopen" = unknown; then
+    cat confdefs.h > config.h
+    AC_CACHE_CHECK(whether matz's dln works, rb_cv_dln_a_out,
+    [AC_TRY_COMPILE([
+#define USE_DLN_A_OUT
+#include "dln.c"
+],
+	[],
+	rb_cv_dln_a_out=yes,
+	rb_cv_dln_a_out=no)])
+    if test "$rb_cv_dln_a_out" = yes; then
+      dln_a_out_works=yes
+      AC_DEFINE(USE_DLN_A_OUT)
+    fi
+  fi
+fi
+
+if test "$dln_a_out_works" = yes; then
+  if test "$GCC" = yes; then
+    STATIC=-static
+  else
+    STATIC=-Bstatic
+  fi
+  DLEXT=so
+  CCDLFLAGS=
+else
+  AS_CASE(["$target_os"],
+    [hpux*], [
+	DLEXT=sl],
+    [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],
+    [
+	DLEXT=so])
+fi
+if test "$rb_cv_dlopen:$load_relative" = yes:yes; then
+    AC_CHECK_FUNCS(dladdr)
+    if test "$ac_cv_func_dladdr" = yes; then
+	LOAD_RELATIVE=1
+    fi
+fi
+if test x"$LOAD_RELATIVE" = x1; then
+    load_relative=yes
+else
+    unset load_relative
+fi
+
+len=2 # .rb
+n=`expr "$DLEXT"  : '.*'`; test "$n" -gt "$len" && len=$n
+n=`expr "$DLEXT2" : '.*'`; test "$n" -gt "$len" && len=$n
+AC_DEFINE_UNQUOTED(DLEXT_MAXLEN, `expr $len + 1`)
+test ".$DLEXT"  = "." || AC_DEFINE_UNQUOTED(DLEXT,  ".$DLEXT")
+test ".$DLEXT2" = "." || AC_DEFINE_UNQUOTED(DLEXT2, ".$DLEXT2")
+AC_SUBST(DLEXT)
+
+if test "$with_dln_a_out" = yes; then
+  STRIP=true
+else
+  AC_CHECK_TOOL(STRIP, strip, :)dnl
+fi
+
+AS_CASE(["$target_os"],
+  [linux* | gnu* | k*bsd*-gnu | kopensolaris*-gnu], [
+	STRIP="$STRIP -S -x"],
+  [darwin*], [
+	STRIP="$STRIP -A -n"])
+
+AC_ARG_WITH(ext,
+            AC_HELP_STRING([--with-ext=EXTS],
+                           [pass to --with-ext option of extmk.rb]))
+AC_ARG_WITH(out-ext,
+            AC_HELP_STRING([--with-out-ext=EXTS],
+                           [pass to --without-ext option of extmk.rb]))
+EXTSTATIC=
+AC_SUBST(EXTSTATIC)dnl
+AC_ARG_WITH(static-linked-ext,
+	    AS_HELP_STRING([--with-static-linked-ext], [link external modules statically]),
+            [AS_CASE([$withval],[yes],[STATIC=;EXTSTATIC=static])])
+if test x"$EXTSTATIC" = xstatic; then
+  ENCOBJS='enc/encinit.$(OBJEXT) enc/libenc.$(LIBEXT) enc/libtrans.$(LIBEXT)'
+  EXTOBJS='ext/extinit.$(OBJEXT)'
+  AC_DEFINE_UNQUOTED(EXTSTATIC, 1)
+fi
+AC_SUBST(ENCOBJS)
+AC_SUBST(EXTOBJS)
+
+if test -f "$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
+    : ${setup:=Setup}
+fi
+AC_SUBST(setup)
+
+if test x"${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; do
+    eval val='"$'$var'"'
+    AS_CASE(["$val"], ["${RUBY_EXEC_PREFIX}"*], [val='${exec_prefix}'"`expr \"$val\" : \"$pat\"`"])
+    eval $var='"$val"'
+done
+
+BTESTRUBY='$(MINIRUBY)'
+if test x"$cross_compiling" = xyes; then
+  test x"$MINIRUBY" = x && MINIRUBY="${RUBY-$BASERUBY} -I`$CHDIR .; pwd` "-r'$(arch)-fake'
+  XRUBY_LIBDIR=`${RUBY-$BASERUBY} -rrbconfig -e ['puts RbConfig::CONFIG["libdir"]']`
+  XRUBY_RUBYLIBDIR=`${RUBY-$BASERUBY} -rrbconfig -e ['puts RbConfig::CONFIG["rubylibdir"]']`
+  XRUBY_RUBYHDRDIR=`${RUBY-$BASERUBY} -rrbconfig -e ['puts RbConfig::CONFIG["rubyhdrdir"]']`
+  AC_SUBST(XRUBY_LIBDIR)
+  AC_SUBST(XRUBY_RUBYLIBDIR)
+  AC_SUBST(XRUBY_RUBYHDRDIR)
+  PREP='$(arch)-fake.rb'
+  RUNRUBY_COMMAND='$(MINIRUBY) -I`cd $(srcdir)/lib; pwd`'
+  RUNRUBY='$(RUNRUBY_COMMAND)'
+  XRUBY='$(MINIRUBY)'
+  TEST_RUNNABLE=no
+  CROSS_COMPILING=yes
+
+  if test "$host_os" = "nacl"; then
+      if test "$build_cpu" = "$host_cpu" || test "${nacl_cv_cpu_nick}" = "x86" -a "$host_cpu" = "i686"; then
+          nacl_cv_sel_ldr='`$(MINIRUBY) $(srcdir)/nacl/nacl-config.rb sel_ldr`'
+          nacl_cv_irt_core='`$(MINIRUBY) $(srcdir)/nacl/nacl-config.rb irt_core`'
+          nacl_cv_runnable_ld='`$(MINIRUBY) $(srcdir)/nacl/nacl-config.rb runnable_ld`'
+          nacl_cv_host_lib='`$(MINIRUBY) $(srcdir)/nacl/nacl-config.rb host_lib`'
+          TEST_RUNNABLE=yes
+          BTESTRUBY="${nacl_cv_sel_ldr} -a -B ${nacl_cv_irt_core} -w 1:3 -w 2:4"
+          BTESTRUBY="$BTESTRUBY -- ${nacl_cv_runnable_ld} --library-path ${nacl_cv_host_lib}"
+          BTESTRUBY="$BTESTRUBY `pwd`/"'miniruby$(EXEEXT) -I`cd $(srcdir)/lib; pwd` -I.'
+          BTESTRUBY="$BTESTRUBY"' -I$(EXTOUT)/common 3>&1 4>&2 1>/dev/null 2>/dev/null '
+      fi
+  fi
+else
+  MINIRUBY='./miniruby$(EXEEXT) -I$(srcdir)/lib -I.'
+  MINIRUBY="$MINIRUBY"' -I$(EXTOUT)/common'
+  PREP='miniruby$(EXEEXT)'
+  RUNRUBY_COMMAND='$(MINIRUBY) $(srcdir)/tool/runruby.rb --extout=$(EXTOUT) $(RUNRUBYOPT)'
+  RUNRUBY='$(RUNRUBY_COMMAND) --'
+  XRUBY='$(RUNRUBY)'
+  TEST_RUNNABLE=yes
+  CROSS_COMPILING=no
+fi
+AC_SUBST(TEST_RUNNABLE)
+AC_SUBST(CROSS_COMPILING)
+AC_SUBST(MINIRUBY)
+AC_SUBST(BTESTRUBY)
+AC_SUBST(PREP)
+AC_SUBST(RUNRUBY_COMMAND)
+AC_SUBST(RUNRUBY)
+AC_SUBST(XRUBY)
+AC_SUBST(EXTOUT, [${EXTOUT=.ext}])
+
+FIRSTMAKEFILE=""
+LIBRUBY_A='lib$(RUBY_SO_NAME)-static.a'
+LIBRUBY='$(LIBRUBY_A)'
+LIBRUBYARG_STATIC='-l$(RUBY_SO_NAME)-static'
+LIBRUBYARG='$(LIBRUBYARG_STATIC)'
+SOLIBS=
+
+AS_CASE(["$target_os"],
+  [cygwin*|mingw*|beos*|haiku*|darwin*|os2-emx*], [
+    : ${DLDLIBS=""}
+    ],
+  [
+    DLDLIBS="$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='$(RUBY_BASE_NAME)'])
+
+LIBRUBY_LDSHARED=$LDSHARED
+LIBRUBY_DLDFLAGS=$DLDFLAGS
+LIBRUBY_SO='lib$(RUBY_SO_NAME).so.$(MAJOR).$(MINOR).$(TEENY)'
+LIBRUBY_ALIASES='lib$(RUBY_SO_NAME).so'
+ENABLE_SHARED=no
+
+AC_ARG_ENABLE(shared,
+       AS_HELP_STRING([--enable-shared], [build a shared library for Ruby]),
+       [enable_shared=$enableval])
+libprefix=${multiarch+'$(archlibdir)'}${multiarch-'$(libdir)'}
+LIBRUBY_RELATIVE=${load_relative-no}
+AS_CASE("$enable_shared", [yes], [
+  LIBRUBY='$(LIBRUBY_SO)'
+  LIBRUBYARG_SHARED='-l$(RUBY_SO_NAME)'
+  LIBRUBYARG='$(LIBRUBYARG_SHARED)'
+  LIBRUBY_RELATIVE=no
+  test -z "$CCDLFLAGS" || CFLAGS="$CFLAGS $CCDLFLAGS"
+  ENABLE_SHARED=yes
+  if test "$rb_cv_binary_elf" = yes; then
+    SOLIBS='$(LIBS)'
+  fi
+
+  # libdir can be overridden in config.site file (on OpenSUSE at least).
+  libdir_basename=lib
+  if test "$bindir" = '${exec_prefix}/bin'; then
+    AS_CASE(["$libdir"], ['${exec_prefix}/'*], [libdir_basename=`basename "$libdir"`])
+  fi
+  AC_DEFINE_UNQUOTED(LIBDIR_BASENAME, ["${libdir_basename}"])
+  libdir_basename="${libdir_basename}"${multiarch+'/${arch}'}
+
+  AS_CASE(["$target_os"],
+    [freebsd*|dragonfly*], [],
+    [
+     if test "$GCC" = yes; then
+       RUBY_TRY_LDFLAGS([${linker_flag}--no-undefined], [no_undefined=yes], [no_undefined=no])
+       if test "no_undefined" = yes; then
+	  RUBY_APPEND_OPTION(EXTLDFLAGS, [${linker_flag}--no-undefined])
+       fi
+     fi
+    ])
+
+  AS_CASE(["$target_os"],
+    [sunos4*], [
+	LIBRUBY_ALIASES='lib$(RUBY_SO_NAME).so.$(MAJOR).$(MINOR) lib$(RUBY_SO_NAME).so'
+	],
+    [linux* | gnu* | k*bsd*-gnu | atheos* | kopensolaris*-gnu], [
+	LIBRUBY_DLDFLAGS='-Wl,-soname,lib$(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
+	    libprefix="'\$\${ORIGIN}/../${libdir_basename}'"
+	    LIBRUBY_RPATHFLAGS="-Wl,-rpath,${libprefix}"
+	    LIBRUBY_RELATIVE=yes
+	fi
+	],
+    [freebsd*|dragonfly*], [
+	SOLIBS='$(LIBS)'
+	LIBRUBY_SO='lib$(RUBY_SO_NAME).so.$(MAJOR)$(MINOR)'
+	if test "$rb_cv_binary_elf" != "yes" ; then
+	    LIBRUBY_SO="$LIBRUBY_SO.\$(TEENY)"
+	    LIBRUBY_ALIASES=''
+	fi
+	],
+    [netbsd*], [
+	SOLIBS='$(LIBS)'
+	LIBRUBY_SO='lib$(RUBY_SO_NAME).so.$(MAJOR)$(MINOR).$(TEENY)'
+	LIBRUBY_DLDFLAGS='-Wl,-soname,lib$(RUBY_SO_NAME).so.$(MAJOR)$(MINOR)'" $LDFLAGS_OPTDIR"
+	if test "$rb_cv_binary_elf" = yes; then # ELF platforms
+	   LIBRUBY_ALIASES='lib$(RUBY_SO_NAME).so.$(MAJOR)$(MINOR) lib$(RUBY_SO_NAME).so'
+	else	# a.out platforms
+	   LIBRUBY_ALIASES=""
+	fi
+	],
+    [openbsd*|mirbsd*], [
+	SOLIBS='$(LIBS)'
+	LIBRUBY_SO='lib$(RUBY_SO_NAME).so.$(MAJOR).'`expr ${MINOR} \* 10 + ${TEENY}`
+	],
+    [solaris*], [
+	SOLIBS='$(LIBS)'
+	LIBRUBY_SO='lib$(RUBY_SO_NAME).so.$(MAJOR)'
+	LIBRUBY_ALIASES='lib$(RUBY_SO_NAME).so.$(MAJOR).$(MINOR).$(TEENY) lib$(RUBY_SO_NAME).so'
+	if test "$GCC" = yes; then
+	    LIBRUBY_DLDFLAGS="$DLDFLAGS "'-Wl,-h,$(@F)'
+	else
+	    LIBRUBY_DLDFLAGS="$DLDFLAGS "'-h $(@F)'
+	fi
+	XLDFLAGS="$XLDFLAGS "'-R${libdir}'
+	],
+    [hpux*], [
+	XLDFLAGS="$XLDFLAGS "'-Wl,+s,+b,$(libdir)'
+	LIBRUBY_SO='lib$(RUBY_SO_NAME).sl.$(MAJOR).$(MINOR).$(TEENY)'
+	LIBRUBY_ALIASES='lib$(RUBY_SO_NAME).sl.$(MAJOR).$(MINOR) lib$(RUBY_SO_NAME).sl'
+	],
+    [aix*], [
+	LIBRUBY_DLDFLAGS="${linker_flag}-bnoentry $XLDFLAGS $LDFLAGS_OPTDIR"
+	LIBRUBYARG_SHARED='-L${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'
+	if test "$load_relative" = yes; then
+	    libprefix="@executable_path/../${libdir_basename}"
+	    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 $(ruby_version)'
+	if test "$visibility_option" = ld; then
+	    LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-Wl,-unexported_symbol,_Init_*'
+	    LIBRUBY_DLDFLAGS="$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$(RUBY_SO_NAME)'
+	],
+    [mingw*|cygwin*|mswin*], [
+	LIBRUBY_RELATIVE=yes
+	])
+], [
+  LIBRUBYARG_SHARED=
+
+  # enable PIE if possible
+  pie=
+  AS_CASE(["$target_os"],
+  [haiku], [
+    # gcc supports PIE, but doesn't work correctly in Haiku
+    pie=no
+  ],
+  [nacl], [
+    # -pie implies -shared for NaCl.
+    pie=no
+  ])
+  if test "$GCC" = yes -a -z "$EXTSTATIC" -a "x$pie" != xno; then
+    RUBY_TRY_CFLAGS(-fPIE, [pie=yes], [pie=no])
+    if test "$pie" = yes; then
+      # Use -fPIE when testing -pie.  RUBY_TRY_LDFLAGS sets
+      # $save_CFLAGS internally, so set other name here.
+      save_CFLAGS_before_pie="$CFLAGS"
+      CFLAGS="$CFLAGS -fPIE"
+
+      # gcc need -pie but clang need -Wl,-pie.
+      for pie in -pie -Wl,-pie; do
+	RUBY_TRY_LDFLAGS([$pie], [], [pie=])
+	if test "x$pie" != x; then
+	  RUBY_APPEND_OPTION(XCFLAGS, -fPIE)
+	  RUBY_APPEND_OPTION(XLDFLAGS, $pie)
+	  break
+	fi
+      done
+      CFLAGS="$save_CFLAGS_before_pie"
+    fi
+  fi
+])
+if test "$enable_rpath" = yes; then
+    test -z "$LIBRUBY_RPATHFLAGS" || LIBRUBY_RPATHFLAGS="$LIBRUBY_RPATHFLAGS "
+    LIBRUBY_RPATHFLAGS="$LIBRUBY_RPATHFLAGS${linker_flag}-R ${linker_flag}${libprefix}"
+    test "x$cross_compiling" = xyes || LIBRUBY_RPATHFLAGS="$LIBRUBY_RPATHFLAGS -L${libprefix}"
+    LIBRUBYARG_SHARED="$LIBRUBY_RPATHFLAGS $LIBRUBYARG_SHARED"
+    LIBRUBYARG_STATIC="$LIBRUBY_RPATHFLAGS $LIBRUBYARG_STATIC"
+fi
+AC_SUBST(LIBRUBY_RELATIVE)
+
+LDFLAGS="-L. $LDFLAGS"
+AC_SUBST(ARCHFILE)
+
+if test "$EXEEXT" = .exe; then
+    EXECUTABLE_EXTS='".exe",".com",".cmd",".bat"'
+    AC_DEFINE_UNQUOTED(EXECUTABLE_EXTS, $EXECUTABLE_EXTS)
+    EXECUTABLE_EXTS=`echo $EXECUTABLE_EXTS | tr -d '"' | tr , ' '`
+    AC_SUBST(EXECUTABLE_EXTS)
+fi
+
+AC_ARG_ENABLE(dtrace,
+        AS_HELP_STRING([--enable-dtrace],
+        [enable DTrace for tracing inside ruby. enabled by default on systems having dtrace]),
+        [enable_dtrace=$enableval], [enable_dtrace=auto])
+
+if test "${enable_dtrace}" = "auto"; then
+    if test x"$DTRACE" != x -a x"$cross_compiling" != xyes; then
+        RUBY_DTRACE_AVAILABLE()
+        enable_dtrace=$rb_cv_dtrace_available
+    else
+        enable_dtrace=no
+    fi
+fi
+
+LIBRUBY_A_OBJS='$(OBJS)'
+if test "${enable_dtrace}" = "yes"; then
+    if test -z "$DTRACE"; then
+        AC_MSG_ERROR([dtrace(1) is missing])
+    elif test "$cross_compiling" = yes; then
+        AC_MSG_ERROR([--enable-dtrace, however, cross compiling])
+    else
+        RUBY_DTRACE_AVAILABLE()
+        enable_dtrace=$rb_cv_dtrace_available
+        if test "${enable_dtrace}" = "no"; then
+            AC_MSG_ERROR([--enable-dtrace, however, USDT is not available])
+        fi
+        RUBY_DTRACE_POSTPROCESS()
+        if test "$rb_cv_prog_dtrace_g" = 'yes'; then
+            DTRACE_OBJ='probes.$(OBJEXT)'
+            DTRACE_GLOMMED_OBJ='ruby-glommed.$(OBJEXT)'
+            LIBRUBY_A_OBJS='$(DTRACE_GLOMMED_OBJ)'
+        fi
+        AS_CASE("${target_os}", [freebsd*], [
+            # FreeBSD's dtrace requires libelf
+            LIBS="-lelf $LIBS"
+        ])
+    fi
+    DTRACE_EXT=d
+else
+    DTRACE_EXT=dmyh
+fi
+AC_SUBST(DTRACE_EXT)
+AC_SUBST(DTRACE_OBJ)
+AC_SUBST(DTRACE_GLOMMED_OBJ)
+AC_SUBST(LIBRUBY_A_OBJS)
+
+}
+{ # build section
+
+dnl build rdoc index if requested
+RDOCTARGET=""
+CAPITARGET=""
+AC_ARG_ENABLE(install-doc,
+       AS_HELP_STRING([--disable-install-doc], [do not install neither rdoc indexes nor C API documents during install]),
+       [install_doc=$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])
+
+if test "$install_doc" != no; then
+    if test "$install_rdoc" != no; then
+	RDOCTARGET="rdoc"
+    else
+	RDOCTARGET="nodoc"
+    fi
+    if test "$install_capi" != no -a -n "$DOXYGEN"; then
+	CAPITARGET="capi"
+    else
+	CAPITARGET="nodoc"
+    fi
+else
+    RDOCTARGET="nodoc"
+    CAPITARGET="nodoc"
+fi
+
+AC_SUBST(RDOCTARGET)
+AC_SUBST(CAPITARGET)
+
+AS_CASE(["$RDOCTARGET:$CAPITARGET"],[nodoc:nodoc],[INSTALLDOC=nodoc],[INSTALLDOC=all])
+AC_SUBST(INSTALLDOC)
+
+if test "$rb_with_pthread" = "yes"; then
+    THREAD_MODEL=pthread
+fi
+AC_CACHE_CHECK([for prefix of external symbols], rb_cv_symbol_prefix, [
+    AC_TRY_COMPILE([extern void conftest_external(void) {}], [], [
+	rb_cv_symbol_prefix=`$NM conftest.$ac_objext |
+			     sed -n ['/.*T[ 	]\([^ 	]*\)conftest_external.*/!d;s//\1/p;q']`
+	],
+	[rb_cv_symbol_prefix=''])
+    test -n "$rb_cv_symbol_prefix" || rb_cv_symbol_prefix=NONE
+])
+SYMBOL_PREFIX="$rb_cv_symbol_prefix"
+test "x$SYMBOL_PREFIX" = xNONE && SYMBOL_PREFIX=''
+DLNOBJ=dln.o
+AC_ARG_ENABLE(dln,
+	      AC_HELP_STRING([--disable-dln], [disable dynamic link feature]),
+	      [test "$enableval" = yes || DLNOBJ=dmydln.o])
+AC_SUBST(DLNOBJ)
+MINIDLNOBJ=dmydln.o
+
+AS_CASE(["$target_os"],
+    [linux*], [
+	],
+    [netbsd*], [
+	RUBY_APPEND_OPTION(CFLAGS, -pipe)
+	],
+    [darwin*], [
+	RUBY_APPEND_OPTION(CFLAGS, -pipe)
+	RUBY_APPEND_OPTION(XLDFLAGS, [-framework CoreFoundation])
+	RUBY_APPEND_OPTION(LIBRUBYARG_STATIC, [-framework CoreFoundation])
+	],
+    [os2-emx], [
+	AC_LIBOBJ([os2])
+	CFLAGS="$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//'`
+	],
+    [osf*], [
+	if test "$GCC" != "yes" ; then
+	  # compile something small: taint.c is fine for this.
+	  # the main point is the '-v' flag of 'cc'.
+	  AS_CASE(["`cc -v -I. -c main.c -o /tmp/main.o 2>&1`"],
+	  [*/gemc_cc*], [   # we have the new DEC GEM CC
+                        CFLAGS="$CFLAGS -oldc"
+                        ],
+          [            # we have the old MIPS CC
+                        ])
+	  # cleanup
+	  rm -f /tmp/main.o
+	  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)'
+	AS_CASE(["$target_os"],
+	[cygwin*], [
+	    if test x"$enable_shared" = xyes; then
+		LIBRUBY_SO='cyg$(RUBY_SO_NAME)'.dll
+		LIBRUBY_DLDFLAGS="${LIBRUBY_DLDFLAGS}"' $(RUBYDEF)'
+	    fi
+	    ],
+	[mingw*], [
+	    RUBY_SO_NAME="${rb_cv_msvcrt}-${RUBY_SO_NAME}"
+	    if test x"${target_cpu}" != xi386; then
+		RUBY_SO_NAME="${target_cpu}-${RUBY_SO_NAME}"
+	    fi
+	    if test x"$enable_shared" = xyes; then
+		LIBRUBY_SO='$(RUBY_SO_NAME)'.dll
+		LIBRUBY_DLDFLAGS="${LIBRUBY_DLDFLAGS}"' $(RUBYDEF)'
+	    fi
+	    EXPORT_PREFIX=' '
+	    DLDFLAGS="${DLDFLAGS}"' $(DEFFILE)'
+	    AC_LIBOBJ([win32/win32])
+	    AC_LIBOBJ([win32/file])
+	    COMMON_LIBS=m
+#	    COMMON_MACROS="WIN32_LEAN_AND_MEAN="
+	    COMMON_HEADERS="winsock2.h windows.h"
+	    THREAD_MODEL=win32
+	    PLATFORM_DIR=win32
+	    ])
+	LIBRUBY_ALIASES=''
+	FIRSTMAKEFILE=GNUmakefile:cygwin/GNUmakefile.in
+	SOLIBS='$(LIBS)'
+	if test x"$enable_shared" = xyes; then
+	    LIBRUBY='lib$(RUBY_SO_NAME).dll.a'
+	else
+	    LIBRUBY_SO=dummy
+	    LIBRUBY='lib$(RUBY_SO_NAME).a'
+	    LIBRUBYARG='-l$(RUBY_SO_NAME)'
+	fi
+	],
+    [hpux*], [
+	AS_CASE(["$YACC"],[*yacc*], [
+	    XCFLAGS="$XCFLAGS -DYYMAXDEPTH=300"
+	    YACC="$YACC -Nl40000 -Nm40000"
+	])],
+    [nacl], [
+	FIRSTMAKEFILE=GNUmakefile:nacl/GNUmakefile.in
+	])
+
+AS_CASE(["$with_gmp: $SOLIBS "], [no:* | *' -lgmp '*|*' $(LIBS) '*], [],
+	[SOLIBS="-lgmp $SOLIBS"])
+
+MINIOBJS="$MINIDLNOBJ"
+
+AS_CASE(["$THREAD_MODEL"],
+[pthread], [AC_CHECK_HEADERS(pthread.h)],
+[win32],   [],
+[""],      [AC_MSG_ERROR(thread model is missing)],
+           [AC_MSG_ERROR(unknown thread model $THREAD_MODEL)])
+
+AC_ARG_ENABLE(debug-env,
+       AS_HELP_STRING([--enable-debug-env], [enable RUBY_DEBUG environment variable]),
+       [AC_DEFINE(RUBY_DEBUG_ENV)])
+
+AS_CASE(["$FIRSTMAKEFILE"], [*GNUmakefile:*], [gnumake=yes], [
+    AC_MSG_CHECKING([if ${MAKE-make} is GNU make])
+    mkdir conftest.dir
+    echo "all:; @echo yes" > conftest.dir/GNUmakefile
+    echo "all:; @echo no" > conftest.dir/Makefile
+    gnumake=`(cd conftest.dir; ${MAKE-make})`
+    rm -fr conftest.dir
+    AS_CASE(["$gnumake"],
+    [*yes*], [
+	FIRSTMAKEFILE=GNUmakefile:template/GNUmakefile.in
+	gnumake=yes],
+    [
+	gnumake=no])
+    AC_MSG_RESULT($gnumake)
+])
+AS_IF([test "$gnumake" = yes], [ NULLCMD=: ], [
+    AC_MSG_CHECKING([for safe null command for ${MAKE-make}])
+    mkdir conftest.dir
+    NULLCMD=
+    for cmd in : true; do
+	echo 'A=1' > conftest.dir/Makefile
+	echo 'B=$(A:1=@'$cmd')' >> conftest.dir/Makefile
+	echo 'all:; $B 1 2 3 4 5 6 7 8 9' >> conftest.dir/Makefile
+	if (cd conftest.dir; ${MAKE-make} >/dev/null 2>/dev/null); then
+	    NULLCMD=$cmd
+	    break
+	fi
+    done
+    rm -fr conftest.dir
+    if test -z "$NULLCMD"; then
+	AC_MSG_ERROR(no candidate for safe null command)
+    fi
+    AC_MSG_RESULT($NULLCMD)
+])
+AC_SUBST(NULLCMD)
+
+if test "${universal_binary-no}" = yes ; then
+    AC_CACHE_CHECK([for architecture macros], rb_cv_architecture_macros, [
+    mv confdefs.h confdefs1.h
+    : > confdefs.h
+    AC_TRY_COMPILE([@%:@if defined __`echo ${universal_archnames} |
+    sed 's/=[^ ]*//g;s/ /__ || defined __/g'`__
+@%:@else
+@%:@error
+>>>>>><<<<<<
+@%:@endif], [],
+[
+    rb_cv_architecture_macros=yes
+    mv -f confdefs1.h confdefs.h
+], [
+    rb_cv_architecture_macros=no
+    archflagpat=`eval echo '"'"${ARCH_FLAG}"'"' | sed 's/[[][|.*]]/\\&/g'`
+    new_cflags=`echo "$CFLAGS" | sed "s|$archflagpat"'||'`
+    for archs in ${universal_archnames}; do
+	cpu=${archs@%:@*=}
+	archs=${archs%=*}
+	CFLAGS="$new_cflags -arch $archs"
+	archs="__${archs}__"
+	AC_MSG_CHECKING([for macro ${archs} on ${cpu}])
+	AC_TRY_COMPILE([@%:@ifndef ${archs}
+@%:@error
+@%:@endif], [], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no])])
+    done
+    mv -f confdefs1.h confdefs.h
+    AC_MSG_ERROR([failed])
+    ])])
+fi
+
+AC_CHECK_FUNC(memmem, [
+  AC_CACHE_CHECK(for broken memmem, rb_cv_broken_memmem, [
+    AC_TRY_RUN([
+#include <string.h>
+
+int
+main()
+{
+  char *str = "hogefugafoobar";
+  char *rs = "foo";
+  char *empty = "";
+  char *p;
+
+  p = memmem(str, strlen(str), rs, strlen(rs));
+  if (p == str+8) {
+    p = memmem(str, strlen(str), empty, strlen(empty));
+    if (p == str)
+      return 0;
+    else
+      return 1;
+  }
+  else {
+    return 1;
+  }
+}
+    ],
+    rb_cv_broken_memmem=no,
+    rb_cv_broken_memmem=yes,
+    rb_cv_broken_memmem=yes)
+  ])
+  if test "$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 "${cflags+set}"; then
+    cflagspat=`eval echo '"'"${cflags}"'"' | sed 's/[[][|.*]]/\\&/g;s/^  */ /;s/^  *$/ /'`
+    CFLAGS=`echo " $CFLAGS " | sed "s|$cflagspat"'|${cflags}|;s/^ *//;s/ *$//'`
+fi
+if test -n "${cxxflags+set}"; then
+    cxxflagspat=`eval echo '"'"${cxxflags}"'"' | sed 's/[[][|.*]]/\\&/g;s/^  */ /;s/^  *$/ /'`
+    CXXFLAGS=`echo " $CXXFLAGS " | sed "s|$cxxflagspat"'|${cxxflags}|;s/^ *//;s/ *$//'`
+fi
+if test "${ARCH_FLAG}"; then
+    archflagpat=`eval echo '"'"${ARCH_FLAG}"'"' | sed 's/[[][|.*]]/\\&/g'`
+    CFLAGS=`echo "$CFLAGS" | sed "s| *$archflagpat"'||'`
+    CXXFLAGS=`echo "$CXXFLAGS" | sed "s| *$archflagpat"'||'`
+    LDFLAGS=`echo "$LDFLAGS" | sed "s| *$archflagpat"'||'`
+fi
+warnflags="$rb_cv_warnflags"
+AC_SUBST(cppflags, [])dnl
+AC_SUBST(cflags, ["$orig_cflags "'${optflags} ${debugflags} ${warnflags}'])dnl
+AC_SUBST(cxxflags, ["$orig_cxxflags "'${optflags} ${debugflags} ${warnflags}'])dnl
+AC_SUBST(optflags)dnl
+AC_SUBST(debugflags)dnl
+AC_SUBST(warnflags)dnl
+AC_SUBST(strict_warnflags)dnl
+AC_SUBST(XCFLAGS)dnl
+AC_SUBST(XLDFLAGS)dnl
+AC_SUBST(EXTLDFLAGS)dnl
+AC_SUBST(EXTDLDFLAGS)dnl
+AC_SUBST(LIBRUBY_LDSHARED)
+AC_SUBST(LIBRUBY_DLDFLAGS)
+AC_SUBST(RUBY_INSTALL_NAME)
+AC_SUBST(rubyw_install_name)
+AC_SUBST(RUBYW_INSTALL_NAME)
+AC_SUBST(RUBY_SO_NAME)
+AC_SUBST(LIBRUBY_A)
+AC_SUBST(LIBRUBY_SO)
+AC_SUBST(LIBRUBY_ALIASES)
+AC_SUBST(LIBRUBY)
+AC_SUBST(LIBRUBYARG)
+AC_SUBST(LIBRUBYARG_STATIC)
+AC_SUBST(LIBRUBYARG_SHARED)
+AC_SUBST(SOLIBS)
+AC_SUBST(DLDLIBS)
+AC_SUBST(ENABLE_SHARED)
+AC_SUBST(MAINLIBS)
+AC_SUBST(COMMON_LIBS)
+AC_SUBST(COMMON_MACROS)
+AC_SUBST(COMMON_HEADERS)
+AC_SUBST(EXPORT_PREFIX)
+AC_SUBST(SYMBOL_PREFIX)
+AC_SUBST(MINIOBJS)
+AC_SUBST(THREAD_MODEL)
+AC_SUBST(PLATFORM_DIR)
+
+firstmf=`echo $FIRSTMAKEFILE | sed 's/:.*//'`
+firsttmpl=`echo $FIRSTMAKEFILE | sed 's/.*://'`
+MAKEFILES="Makefile $firstmf"
+MAKEFILES="`echo $MAKEFILES`"
+AC_SUBST(MAKEFILES)
+
+ri_prefix=
+test "$program_prefix" != NONE &&
+  ri_prefix=$program_prefix
+
+ri_suffix=
+test "$program_suffix" != NONE &&
+  ri_suffix=$program_suffix
+
+RUBY_INSTALL_NAME="${ri_prefix}"'$(RUBY_BASE_NAME)'"${ri_suffix}"
+AS_CASE(["$target_os"],
+  [cygwin*|mingw*], [
+    RUBYW_INSTALL_NAME="${ri_prefix}"'$(RUBYW_BASE_NAME)'"${ri_suffix}"
+    rubyw_install_name='$(RUBYW_INSTALL_NAME)'
+    ])
+
+rubylibprefix='${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}/${arch}'}
+
+rubyarchprefix=${multiarch+'${archlibdir}/${RUBY_BASE_NAME}'}${multiarch-'${rubylibprefix}/${arch}'}
+AC_ARG_WITH(rubyarchprefix,
+	    AS_HELP_STRING([--with-rubyarchprefix=DIR],
+			   [prefix for architecture dependent ruby libraries [[RUBYLIBPREFIX/ARCH]]]),
+	    [rubyarchprefix="$withval"])
+AC_SUBST(rubyarchprefix)
+
+rubysitearchprefix=${multiarch+'${sitearchlibdir}/${RUBY_BASE_NAME}'}${multiarch-'${rubylibprefix}/${sitearch}'}
+AC_ARG_WITH(rubysitearchprefix,
+	    AS_HELP_STRING([--with-rubysitearchprefix=DIR],
+			   [prefix for architecture dependent site libraries [[RUBYLIBPREFIX/SITEARCH]]]),
+	    [rubysitearchprefix="$withval"])
+AC_SUBST(rubysitearchprefix)
+
+RI_BASE_NAME=`echo ${RUBY_BASE_NAME} | sed 's/ruby/ri/'`
+ridir='${datarootdir}/${RI_BASE_NAME}'
+AC_ARG_WITH(ridir,
+	    AS_HELP_STRING([--with-ridir=DIR], [ri documentation [[DATAROOTDIR/ri]]]),
+	    [ridir=$withval])
+AC_SUBST(ridir)
+AC_SUBST(RI_BASE_NAME)
+
+AC_ARG_WITH(ruby-version,
+	    AS_HELP_STRING([--with-ruby-version=STR], [ruby version string for version specific directories [[full]] (full|minor|STR)]),
+            [ruby_version=$withval],
+            [ruby_version=full])
+unset RUBY_LIB_VERSION
+unset RUBY_LIB_VERSION_STYLE
+AS_CASE(["$ruby_version"],
+  [full],  [RUBY_LIB_VERSION_STYLE='3	/* full */'],
+  [minor], [RUBY_LIB_VERSION_STYLE='2	/* minor */'])
+if test ${RUBY_LIB_VERSION_STYLE+set}; then
+    {
+    echo "#define RUBY_LIB_VERSION_STYLE $RUBY_LIB_VERSION_STYLE"
+    echo '#define STRINGIZE(x) x'
+    test -f revision.h -o -f "${srcdir}/revision.h" || echo '#define RUBY_REVISION 0'
+    echo '#include "verconf.h"'
+    echo '#include "version.h"'
+    echo 'ruby_version=RUBY_LIB_VERSION'
+    } > conftest.c
+    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="\"${ruby_version}\""
+fi
+AC_SUBST(RUBY_LIB_VERSION_STYLE)
+AC_SUBST(RUBY_LIB_VERSION)
+
+AC_ARG_WITH(sitedir,
+	    AS_HELP_STRING([--with-sitedir=DIR], [site libraries in DIR [[RUBY_LIB_PREFIX/site_ruby]], "no" to disable site directory]),
+            [sitedir=$withval],
+            [sitedir='${rubylibprefix}/site_ruby'])
+sitelibdir='${sitedir}/${ruby_version}'
+
+AC_ARG_WITH(sitearchdir,
+	    AS_HELP_STRING([--with-sitearchdir=DIR],
+			   [architecture dependent site libraries in DIR [[SITEDIR/SITEARCH]], "no" to disable site directory]),
+            [sitearchdir=$withval],
+            [sitearchdir=${multiarch+'${rubysitearchprefix}/site_ruby/${ruby_version}'}${multiarch-'${sitelibdir}/${sitearch}'}])
+
+AC_ARG_WITH(vendordir,
+	    AS_HELP_STRING([--with-vendordir=DIR], [vendor libraries in DIR [[RUBY_LIB_PREFIX/vendor_ruby]], "no" to disable vendor directory]),
+            [vendordir=$withval],
+            [vendordir='${rubylibprefix}/vendor_ruby'])
+vendorlibdir='${vendordir}/${ruby_version}'
+
+AC_ARG_WITH(vendorarchdir,
+	    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}/${sitearch}'}])
+
+if test "${LOAD_RELATIVE+set}"; then
+    AC_DEFINE_UNQUOTED(LOAD_RELATIVE, $LOAD_RELATIVE)
+    RUBY_EXEC_PREFIX=''
+fi
+
+AC_SUBST(RUBY_EXEC_PREFIX)
+
+AC_SUBST(libdirname, ${multiarch+arch}libdir)
+AC_SUBST(archlibdir)dnl
+AC_SUBST(sitearchlibdir)dnl
+AC_SUBST(archincludedir)dnl
+AC_SUBST(sitearchincludedir)dnl
+AC_SUBST(arch)dnl
+AC_SUBST(sitearch)dnl
+AC_SUBST(ruby_version)dnl
+AC_SUBST(rubylibdir)dnl
+AC_SUBST(rubyarchdir)dnl
+AC_SUBST(sitedir)dnl
+AC_SUBST(sitelibdir)dnl
+AC_SUBST(sitearchdir)dnl
+AC_SUBST(vendordir)dnl
+AC_SUBST(vendorlibdir)dnl
+AC_SUBST(vendorarchdir)dnl
+
+AC_SUBST(configure_args, "`echo "${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__)
+    else
+	for archs in ${universal_archnames}; do
+	    cpu=`echo $archs | sed 's/.*=//'`
+	    archs=`echo $archs | sed 's/=.*//'`
+	    RUBY_DEFINE_IF([defined __${archs}__], RUBY_PLATFORM_CPU, ["${cpu}"])
+	done
+    fi
+    ints='long int short'
+    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}")
+    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}")
+fi
+
+unset sitearch
+AS_CASE(["$target_os"],[mingw*],[sitearch="$target_cpu-$rb_cv_msvcrt"])
+: ${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_SUBST(RUBY_SEARCH_PATH, $search_path)
+fi
+
+AC_ARG_WITH(rubyhdrdir,
+	    AS_HELP_STRING([--with-rubyhdrdir=DIR], [core headers in DIR [[INCLUDEDIR/RUBY_BASE_NAME-RUBY_VERSION]]]),
+	    [rubyhdrdir=$withval],
+	    [rubyhdrdir='${includedir}/${RUBY_VERSION_NAME}'])
+
+AC_ARG_WITH(rubyarchhdrdir,
+	    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}'}])
+
+AC_ARG_WITH(sitehdrdir,
+	    AS_HELP_STRING([--with-sitehdrdir=DIR], [core site headers in DIR [[RUBYHDRDIR/site_ruby]]]),
+	    [sitehdrdir=$withval],
+	    [sitehdrdir='${rubyhdrdir}/site_ruby'])
+
+AC_ARG_WITH(sitearchhdrdir,
+	    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}'}])
+
+AC_ARG_WITH(vendorhdrdir,
+	    AS_HELP_STRING([--with-vendorhdrdir=DIR], [core vendor headers in DIR [[RUBYHDRDIR/vendor_ruby]]]),
+	    [vendorhdrdir=$withval],
+	    [vendorhdrdir='${rubyhdrdir}/vendor_ruby'])
+
+AC_ARG_WITH(vendorarchhdrdir,
+	    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}'}])
+
+AC_SUBST(rubyhdrdir)dnl
+AC_SUBST(sitehdrdir)dnl
+AC_SUBST(vendorhdrdir)dnl
+AC_SUBST(rubyarchhdrdir)dnl
+AC_SUBST(sitearchhdrdir)dnl
+AC_SUBST(vendorarchhdrdir)dnl
+
+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],
+			[AC_MSG_ERROR(invalid man type: $withval)])
+		])
+if test -z "$MANTYPE"; then
+	AC_PATH_PROGS(NROFF, nroff awf, /bin/false, "/usr/bin:/usr/ucb")
+	if ${NROFF} -mdoc ${srcdir}/man/ruby.1 >/dev/null 2>&1; then
+		MANTYPE=doc
+	else
+		MANTYPE=man
+	fi
+fi
+AC_SUBST(MANTYPE)
+
+AC_ARG_ENABLE(rubygems,
+	AS_HELP_STRING([--disable-rubygems], [disable rubygems by default]),
+	[enable_rubygems="$enableval"], [enable_rubygems=yes])
+if test x"$enable_rubygems" = xno; then
+    AC_DEFINE(DISABLE_RUBYGEMS, 1)
+    USE_RUBYGEMS=NO
+else
+    USE_RUBYGEMS=YES
+fi
+AC_SUBST(USE_RUBYGEMS)
+
+arch_hdrdir="${EXTOUT}/include/${arch}/ruby"
+AS_MKDIR_P("${arch_hdrdir}")
+config_h="${arch_hdrdir}/config.h"
+guard=INCLUDE_RUBY_CONFIG_H
+{
+  echo "#ifndef $guard"
+  echo "#define $guard 1"
+  grep -v "^#define PACKAGE_" confdefs.h
+  echo "#endif /* $guard */"
+} | tr -d '\015' |
+${srcdir}/tool/ifchange "${config_h}" -
+tr -d '\015' < largefile.h > confdefs.h
+rm largefile.h
+
+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
+AC_SUBST(BUILTIN_ENCOBJS)
+
+BUILTIN_TRANSES=["`sed -n -e '/^BUILTIN_TRANSES[ 	]*=/{' \
+	-e s/// -e :l -e '/\\\\$/N' -e 's/\\\\\\n/ /' -e 't l' -e p \
+	-e '}' "${srcdir}/enc/Makefile.in"`"]
+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)';
+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_CASE([" $CPP "], [*" $CC "*], [CPP=`echo " $CPP " | sed "s| $CC |"' $(CC) |;s/^ *//;s/  *$//'`])
+
+if test x"$firstmf" != x; then
+    AC_CONFIG_FILES($firstmf:$firsttmpl, [], [firstmf="$firstmf" firsttmpl="$firsttmpl"])
+fi
+AC_CONFIG_FILES(Makefile, [
+    tmpmk=confmk$$.tmp
+    {
+	if test ${VCS+set}; then
+	    :
+	elif svn info "$srcdir" > /dev/null 2>&1; then
+	    VCS='svn'
+	elif test -d "$srcdir/.git/svn"; then
+	    VCS='git svn'
+	elif test -d "$srcdir/.git"; then
+	    VCS='git'
+	else
+	    VCS='echo cannot'
+	fi
+	AS_CASE("$VCS",
+		[svn],       [VCSUP='$(VCS) up $(SVNUPOPTIONS)'],
+		["git svn"], [VCSUP='$(VCS) rebase $(GITSVNREBASEOPTIONS)'],
+		[git],       [VCSUP='$(VCS) pull $(GITPULLOPTIONS)'],
+		[VCSUP='$(VCS)'])
+	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 "$gnumake" != yes; then
+	    echo ['$(MKFILES): $(srcdir)/common.mk']
+	    sed ['s/{\$([^(){}]*)[^{}]*}//g'] ${srcdir}/common.mk
+	else
+	    echo 'distclean-local::; @$(RM) GNUmakefile uncommon.mk'
+	fi
+    } > $tmpmk && if ! grep '^ruby:' $tmpmk > /dev/null; then
+	if test "${gnumake}" = yes; then
+	    tmpgmk=confgmk$$.tmp
+	    {
+		echo "include $tmpmk"
+		echo "-include uncommon.mk"
+	    } > $tmpgmk
+	else
+	    tmpgmk=$tmpmk
+	fi &&
+	test -z "`${MAKE-make} -f $tmpgmk info-program | grep '^PROGRAM=ruby$'`" &&
+	echo 'ruby: $(PROGRAM);' >> $tmpmk
+	test "$tmpmk" = "$tmpgmk" || rm -f "$tmpgmk"
+    fi && mv -f $tmpmk Makefile],
+[EXEEXT='$EXEEXT' gnumake='$gnumake'])
+
+AC_ARG_WITH([ruby-pc],
+	    AC_HELP_STRING([pc file basename]),
+	    [ruby_pc="$withval"],
+	    [ruby_pc="${RUBY_BASE_NAME}-${MAJOR}.${MINOR}.pc"])
+AC_SUBST(ruby_pc)
+AC_SUBST(exec, [exec])
+
+AC_CONFIG_FILES($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_]*@//'] $ruby_pc > ruby.tmp.pc &&
+	{
+	    test -z "$PKG_CONFIG" ||
+	    PKG_CONFIG_PATH=. $PKG_CONFIG --print-errors ruby.tmp
+	}
+    then
+	mv -f ruby.tmp.pc $ruby_pc
+    else
+	exit 1
+    fi
+    ],
+    [ruby_pc='$ruby_pc' PKG_CONFIG='$PKG_CONFIG'])
+
+AC_OUTPUT
+}
+}
diff --git a/constant.h b/constant.h
index fcccf07384..3dc9b8d4ef 100644
--- a/constant.h
+++ b/constant.h
@@ -12,40 +12,25 @@
 #define CONSTANT_H
 
 typedef enum {
-    CONST_DEPRECATED = 0x100,
-
-    CONST_VISIBILITY_MASK = 0xff,
     CONST_PUBLIC    = 0x00,
-    CONST_PRIVATE,
-    CONST_VISIBILITY_MAX
+    CONST_PRIVATE   = 0x01
 } 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;
-    int line;
     const VALUE value;            /* should be mark */
     const VALUE file;             /* should be mark */
+    int line;
 } rb_const_entry_t;
 
-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(struct rb_id_table *tbl);
+VALUE rb_mod_private_constant(int argc, VALUE *argv, VALUE obj);
+VALUE rb_mod_public_constant(int argc, 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);
 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);
-int rb_autoloading_value(VALUE mod, ID id, VALUE *value, rb_const_flag_t *flag);
 
 #endif /* CONSTANT_H */
diff --git a/cont.c b/cont.c
index 6e8f95de54..fa9e91ee64 100644
--- a/cont.c
+++ b/cont.c
@@ -9,6 +9,7 @@
 
 **********************************************************************/
 
+#include "ruby/ruby.h"
 #include "internal.h"
 #include "vm_core.h"
 #include "gc.h"
@@ -54,7 +55,13 @@
 #     define FIBER_USE_NATIVE 1
 #   endif
 # elif defined(_WIN32)
-#  define FIBER_USE_NATIVE 1
+#   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)
@@ -80,64 +87,36 @@ enum context_type {
     ROOT_FIBER_CONTEXT = 2
 };
 
-struct cont_saved_vm_stack {
-    VALUE *ptr;
-#ifdef CAPTURE_JUST_VALID_VM_STACK
-    size_t slen;  /* length of stack (head of ec->vm_stack) */
-    size_t clen;  /* length of control frames (tail of ec->vm_stack) */
-#endif
-};
-
 typedef struct rb_context_struct {
     enum context_type type;
-    int argc;
     VALUE self;
+    int argc;
     VALUE value;
-
-    struct cont_saved_vm_stack saved_vm_stack;
-
-    struct {
-	VALUE *stack;
-	VALUE *stack_src;
-	size_t stack_size;
+    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;
 #ifdef __ia64
-	VALUE *register_stack;
-	VALUE *register_stack_src;
-	int register_stack_size;
+    VALUE *machine_register_stack;
+    VALUE *machine_register_stack_src;
+    int machine_register_stack_size;
 #endif
-    } machine;
-    rb_execution_context_t saved_ec;
+    rb_thread_t saved_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;
 
-
-/*
- * Fiber status:
- *    [Fiber.new] ------> FIBER_CREATED
- *                        | [Fiber#resume]
- *                        v
- *                   +--> FIBER_RESUMED ----+
- *    [Fiber#resume] |    | [Fiber.yield]   |
- *                   |    v                 |
- *                   +-- FIBER_SUSPENDED    | [Terminate]
- *                                          |
- *                       FIBER_TERMINATED <-+
- */
 enum fiber_status {
-    FIBER_CREATED,
-    FIBER_RESUMED,
-    FIBER_SUSPENDED,
-    FIBER_TERMINATED
+    CREATED,
+    RUNNING,
+    TERMINATED
 };
 
-#define FIBER_CREATED_P(fib)    ((fib)->status == FIBER_CREATED)
-#define FIBER_RESUMED_P(fib)    ((fib)->status == FIBER_RESUMED)
-#define FIBER_SUSPENDED_P(fib)  ((fib)->status == FIBER_SUSPENDED)
-#define FIBER_TERMINATED_P(fib) ((fib)->status == FIBER_TERMINATED)
-#define FIBER_RUNNABLE_P(fib)   (FIBER_CREATED_P(fib) || FIBER_SUSPENDED_P(fib))
-
 #if FIBER_USE_NATIVE && !defined(_WIN32)
 #define MAX_MACHINE_STACK_CACHE  10
 static int machine_stack_cache_index = 0;
@@ -149,100 +128,26 @@ static machine_stack_cache_t machine_stack_cache[MAX_MACHINE_STACK_CACHE];
 static machine_stack_cache_t terminated_machine_stack;
 #endif
 
-struct rb_fiber_struct {
+typedef struct rb_fiber_struct {
     rb_context_t cont;
-    VALUE first_proc;
-    struct rb_fiber_struct *prev;
-    const enum fiber_status status;
+    VALUE 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 transferred;
+    int transfered;
 
 #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
-};
-
-static const char *
-fiber_status_name(enum fiber_status s)
-{
-    switch (s) {
-      case FIBER_CREATED: return "created";
-      case FIBER_RESUMED: return "resumed";
-      case FIBER_SUSPENDED: return "suspended";
-      case FIBER_TERMINATED: return "terminated";
-    }
-    VM_UNREACHABLE(fiber_status_name);
-    return NULL;
-}
-
-static void
-fiber_verify(const rb_fiber_t *fib)
-{
-#if VM_CHECK_MODE > 0
-    VM_ASSERT(fib->cont.saved_ec.fiber_ptr == fib);
-
-    switch (fib->status) {
-      case FIBER_RESUMED:
-	VM_ASSERT(fib->cont.saved_ec.vm_stack != NULL);
-	break;
-      case FIBER_SUSPENDED:
-	VM_ASSERT(fib->cont.saved_ec.vm_stack != NULL);
-	break;
-      case FIBER_CREATED:
-      case FIBER_TERMINATED:
-	/* TODO */
-	break;
-      default:
-	VM_UNREACHABLE(fiber_verify);
-    }
-#endif
-}
-
-#if VM_CHECK_MODE > 0
-void
-rb_ec_verify(const rb_execution_context_t *ec)
-{
-    /* TODO */
-}
-#endif
-
-static void
-fiber_status_set(const rb_fiber_t *fib, enum fiber_status s)
-{
-    if (0) fprintf(stderr, "fib: %p, status: %s -> %s\n", fib, fiber_status_name(fib->status), fiber_status_name(s));
-    VM_ASSERT(!FIBER_TERMINATED_P(fib));
-    VM_ASSERT(fib->status != s);
-    fiber_verify(fib);
-    *((enum fiber_status *)&fib->status) = s;
-}
-
-void
-ec_set_vm_stack(rb_execution_context_t *ec, VALUE *stack, size_t size)
-{
-    *(VALUE **)(&ec->vm_stack) = stack;
-    *(size_t *)(&ec->vm_stack_size) = size;
-}
-
-static inline void
-ec_switch(rb_thread_t *th, rb_fiber_t *fib)
-{
-    rb_execution_context_t *ec = &fib->cont.saved_ec;
-    ruby_current_execution_context_ptr = th->ec = ec;
-    VM_ASSERT(ec->fiber_ptr->cont.self == 0 || ec->vm_stack != NULL);
-}
+} rb_fiber_t;
 
 static const rb_data_type_t cont_data_type, fiber_data_type;
 static VALUE rb_cContinuation;
@@ -257,114 +162,111 @@ static VALUE rb_eFiberError;
     if (!(ptr)) rb_raise(rb_eFiberError, "uninitialized fiber"); \
 } while (0)
 
-NOINLINE(static VALUE cont_capture(volatile int *volatile stat));
+NOINLINE(static VALUE cont_capture(volatile int *stat));
 
 #define THREAD_MUST_BE_RUNNING(th) do { \
-	if (!(th)->ec->tag) rb_raise(rb_eThreadError, "not running thread");	\
+	if (!(th)->tag) rb_raise(rb_eThreadError, "not running thread");	\
     } while (0)
 
-static VALUE
-cont_thread_value(const rb_context_t *cont)
-{
-    return cont->saved_ec.thread_ptr->self;
-}
-
 static void
 cont_mark(void *ptr)
 {
-    rb_context_t *cont = ptr;
-
     RUBY_MARK_ENTER("cont");
-    rb_gc_mark(cont->value);
-
-    rb_execution_context_mark(&cont->saved_ec);
-    rb_gc_mark(cont_thread_value(cont));
+    if (ptr) {
+	rb_context_t *cont = ptr;
+	rb_gc_mark(cont->value);
+	rb_thread_mark(&cont->saved_thread);
+	rb_gc_mark(cont->saved_thread.self);
 
-    if (cont->saved_vm_stack.ptr) {
+	if (cont->vm_stack) {
 #ifdef CAPTURE_JUST_VALID_VM_STACK
-	rb_gc_mark_locations(cont->saved_vm_stack.ptr,
-			     cont->saved_vm_stack.ptr + cont->saved_vm_stack.slen + cont->saved_vm_stack.clen);
+	    rb_gc_mark_locations(cont->vm_stack,
+				 cont->vm_stack + cont->vm_stack_slen + cont->vm_stack_clen);
 #else
-	rb_gc_mark_locations(cont->saved_vm_stack.ptr,
-			     cont->saved_vm_stack.ptr, cont->saved_ec.stack_size);
+	    rb_gc_mark_localtion(cont->vm_stack,
+				 cont->vm_stack, cont->saved_thread.stack_size);
 #endif
-    }
-
-    if (cont->machine.stack) {
-	if (cont->type == CONTINUATION_CONTEXT) {
-	    /* cont */
-	    rb_gc_mark_locations(cont->machine.stack,
-				 cont->machine.stack + cont->machine.stack_size);
 	}
-	else {
-	    /* fiber */
-	    const rb_fiber_t *fib = (rb_fiber_t*)cont;
 
-	    if (!FIBER_TERMINATED_P(fib)) {
-		rb_gc_mark_locations(cont->machine.stack,
-				     cont->machine.stack + cont->machine.stack_size);
+	if (cont->machine_stack) {
+	    if (cont->type == CONTINUATION_CONTEXT) {
+		/* cont */
+		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);
+		}
 	    }
 	}
-    }
 #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
-
+    }
     RUBY_MARK_LEAVE("cont");
 }
 
 static void
 cont_free(void *ptr)
 {
-    rb_context_t *cont = ptr;
-
     RUBY_FREE_ENTER("cont");
-    ruby_xfree(cont->saved_ec.vm_stack);
-
+    if (ptr) {
+	rb_context_t *cont = ptr;
+	RUBY_FREE_UNLESS_NULL(cont->saved_thread.stack); fflush(stdout);
 #if FIBER_USE_NATIVE
-    if (cont->type == CONTINUATION_CONTEXT) {
-	/* cont */
-	ruby_xfree(cont->ensure_array);
-	RUBY_FREE_UNLESS_NULL(cont->machine.stack);
-    }
-    else {
-	/* fiber */
-	const rb_fiber_t *fib = (rb_fiber_t*)cont;
+	if (cont->type == CONTINUATION_CONTEXT) {
+	    /* cont */
+	    ruby_xfree(cont->ensure_array);
+	    RUBY_FREE_UNLESS_NULL(cont->machine_stack);
+	}
+	else {
+	    /* fiber */
 #ifdef _WIN32
-	if (cont->type != ROOT_FIBER_CONTEXT) {
-	    /* don't delete root fiber handle */
-	    if (fib->fib_handle) {
-		DeleteFiber(fib->fib_handle);
+	    if (GET_THREAD()->fiber != cont->self && 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 (fib->ss_sp != NULL) {
-	    if (cont->type == ROOT_FIBER_CONTEXT) {
-		rb_bug("Illegal root fiber parameter");
+	    if (GET_THREAD()->fiber != cont->self) {
+                rb_fiber_t *fib = (rb_fiber_t*)cont;
+                if (fib->context.uc_stack.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 {
-	    /* It may reached here when finalize */
-	    /* TODO examine whether it is a bug */
-	    /* rb_bug("cont_free: release self"); */
-	}
+            else {
+		/* It may reached here when finalize */
+		/* TODO examine whether it is a bug */
+                /* rb_bug("cont_free: release self"); */
+            }
 #endif
-    }
+	}
 #else /* not FIBER_USE_NATIVE */
-    ruby_xfree(cont->ensure_array);
-    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->saved_vm_stack.ptr);
+	RUBY_FREE_UNLESS_NULL(cont->vm_stack);
 
-    /* free rb_cont_t or rb_fiber_t */
-    ruby_xfree(ptr);
+	/* free rb_cont_t or rb_fiber_t */
+	ruby_xfree(ptr);
+    }
     RUBY_FREE_LEAVE("cont");
 }
 
@@ -373,72 +275,76 @@ cont_memsize(const void *ptr)
 {
     const rb_context_t *cont = ptr;
     size_t size = 0;
-
-    size = sizeof(*cont);
-    if (cont->saved_vm_stack.ptr) {
+    if (cont) {
+	size = sizeof(*cont);
+	if (cont->vm_stack) {
 #ifdef CAPTURE_JUST_VALID_VM_STACK
-	size_t n = (cont->saved_vm_stack.slen + cont->saved_vm_stack.clen);
+	    size_t n = (cont->vm_stack_slen + cont->vm_stack_clen);
 #else
-	size_t n = cont->saved_ec.vm_stack_size;
+	    size_t n = cont->saved_thread.stack_size;
 #endif
-	size += n * sizeof(*cont->saved_vm_stack.ptr);
-    }
+	    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);
-    }
+	if (cont->machine_register_stack) {
+	    size += cont->machine_register_stack_size * sizeof(*cont->machine_register_stack);
+	}
 #endif
+    }
     return size;
 }
 
-void
-rb_fiber_mark_self(const rb_fiber_t *fib)
+static void
+fiber_mark(void *ptr)
 {
-    if (fib->cont.self) {
-	rb_gc_mark(fib->cont.self);
-    }
-    else {
-	rb_execution_context_mark(&fib->cont.saved_ec);
+    RUBY_MARK_ENTER("cont");
+    if (ptr) {
+	rb_fiber_t *fib = ptr;
+	rb_gc_mark(fib->prev);
+	cont_mark(&fib->cont);
     }
+    RUBY_MARK_LEAVE("cont");
 }
 
 static void
-fiber_mark(void *ptr)
+fiber_link_join(rb_fiber_t *fib)
 {
-    rb_fiber_t *fib = ptr;
-    RUBY_MARK_ENTER("cont");
-    fiber_verify(fib);
-    rb_gc_mark(fib->first_proc);
-    if (fib->prev) rb_fiber_mark_self(fib->prev);
+    VALUE current_fibval = rb_fiber_current();
+    rb_fiber_t *current_fib;
+    GetFiberPtr(current_fibval, current_fib);
 
-#if !FIBER_USE_NATIVE
-    if (fib->status == FIBER_TERMINATED) {
-	/* FIBER_TERMINATED fiber should not mark machine stack */
-	if (fib->cont.saved_ec.machine.stack_end != NULL) {
-	    fib->cont.saved_ec.machine.stack_end = NULL;
-	}
-    }
-#endif
+    /* 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;
+}
 
-    cont_mark(&fib->cont);
-    RUBY_MARK_LEAVE("cont");
+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)
 {
-    rb_fiber_t *fib = ptr;
     RUBY_FREE_ENTER("fiber");
+    if (ptr) {
+	rb_fiber_t *fib = ptr;
+	if (fib->cont.type != ROOT_FIBER_CONTEXT &&
+	    fib->cont.saved_thread.local_storage) {
+	    st_free_table(fib->cont.saved_thread.local_storage);
+	}
+	fiber_link_remove(fib);
 
-    if (fib->cont.saved_ec.local_storage) {
-	st_free_table(fib->cont.saved_ec.local_storage);
+	cont_free(&fib->cont);
     }
-
-    cont_free(&fib->cont);
     RUBY_FREE_LEAVE("fiber");
 }
 
@@ -447,13 +353,14 @@ fiber_memsize(const void *ptr)
 {
     const rb_fiber_t *fib = ptr;
     size_t size = 0;
-
-    size = sizeof(*fib);
-    if (fib->cont.type != ROOT_FIBER_CONTEXT &&
-	fib->cont.saved_ec.local_storage != NULL) {
-	size += st_memsize(fib->cont.saved_ec.local_storage);
+    if (ptr) {
+	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);
     }
-    size += cont_memsize(&fib->cont);
     return size;
 }
 
@@ -473,68 +380,63 @@ cont_save_machine_stack(rb_thread_t *th, rb_context_t *cont)
 {
     size_t size;
 
-    SET_MACHINE_STACK_END(&th->ec->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->ec->machine.stack_start > th->ec->machine.stack_end) {
-	size = cont->machine.stack_size = th->ec->machine.stack_start - th->ec->machine.stack_end;
-	cont->machine.stack_src = th->ec->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->ec->machine.stack_end - th->ec->machine.stack_start;
-	cont->machine.stack_src = th->ec->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
+    NULL, NULL, RUBY_TYPED_FREE_IMMEDIATELY
 };
 
-static inline void
+static void
 cont_save_thread(rb_context_t *cont, rb_thread_t *th)
 {
-    rb_execution_context_t *sec = &cont->saved_ec;
-
-    VM_ASSERT(th->status == THREAD_RUNNABLE);
-
     /* save thread context */
-    *sec = *th->ec;
-
-    /* saved_thread->machine.stack_end should be NULL */
+    cont->saved_thread = *th;
+    /* saved_thread->machine_stack_(start|end) should be NULL */
     /* because it may happen GC afterward */
-    sec->machine.stack_end = NULL;
-
+    cont->saved_thread.machine_stack_start = 0;
+    cont->saved_thread.machine_stack_end = 0;
 #ifdef __ia64
-    sec->machine.register_stack_start = NULL;
-    sec->machine.register_stack_end = NULL;
+    cont->saved_thread.machine_register_stack_start = 0;
+    cont->saved_thread.machine_register_stack_end = 0;
 #endif
 }
 
@@ -543,10 +445,7 @@ cont_init(rb_context_t *cont, rb_thread_t *th)
 {
     /* save thread context */
     cont_save_thread(cont, th);
-    cont->saved_ec.thread_ptr = th;
-    cont->saved_ec.local_storage = NULL;
-    cont->saved_ec.local_storage_recursive_hash = Qnil;
-    cont->saved_ec.local_storage_recursive_hash_for_trace = Qnil;
+    cont->saved_thread.local_storage = 0;
 }
 
 static rb_context_t *
@@ -563,62 +462,31 @@ cont_new(VALUE klass)
     return cont;
 }
 
-#if 0
-void
-show_vm_stack(const rb_execution_context_t *ec)
-{
-    VALUE *p = ec->vm_stack;
-    while (p < ec->cfp->sp) {
-	fprintf(stderr, "%3d ", (int)(p - ec->vm_stack));
-	rb_obj_info_dump(*p);
-	p++;
-    }
-}
-
-void
-show_vm_pcs(const rb_control_frame_t *cfp,
-	    const rb_control_frame_t *end_of_cfp)
-{
-    int i=0;
-    while (cfp != end_of_cfp) {
-	int pc = 0;
-	if (cfp->iseq) {
-	    pc = cfp->pc - cfp->iseq->body->iseq_encoded;
-	}
-	fprintf(stderr, "%2d pc: %d\n", i++, pc);
-	cfp = RUBY_VM_PREVIOUS_CONTROL_FRAME(cfp);
-    }
-}
-#endif
 static VALUE
-cont_capture(volatile int *volatile stat)
+cont_capture(volatile int *stat)
 {
-    rb_context_t *volatile cont;
-    rb_thread_t *th = GET_THREAD();
+    rb_context_t *cont;
+    rb_thread_t *th = GET_THREAD(), *sth;
     volatile VALUE contval;
-    const rb_execution_context_t *ec = th->ec;
 
     THREAD_MUST_BE_RUNNING(th);
-    rb_vm_stack_to_heap(th->ec);
+    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->saved_vm_stack.slen = ec->cfp->sp - ec->vm_stack;
-    cont->saved_vm_stack.clen = ec->vm_stack + ec->vm_stack_size - (VALUE*)ec->cfp;
-    cont->saved_vm_stack.ptr = ALLOC_N(VALUE, cont->saved_vm_stack.slen + cont->saved_vm_stack.clen);
-    MEMCPY(cont->saved_vm_stack.ptr,
-	   ec->vm_stack,
-	   VALUE, cont->saved_vm_stack.slen);
-    MEMCPY(cont->saved_vm_stack.ptr + cont->saved_vm_stack.slen,
-	   (VALUE*)ec->cfp,
-	   VALUE,
-	   cont->saved_vm_stack.clen);
+    cont->vm_stack_slen = th->cfp->sp + th->mark_stack_len - 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);
+    MEMCPY(cont->vm_stack + cont->vm_stack_slen, (VALUE*)th->cfp, VALUE, cont->vm_stack_clen);
 #else
-    cont->saved_vm_stack.ptr = ALLOC_N(VALUE, ec->vm_stack_size);
-    MEMCPY(cont->saved_vm_stack.ptr, ec->vm_stack, VALUE, ec->vm_stack_size);
+    cont->vm_stack = ALLOC_N(VALUE, th->stack_size);
+    MEMCPY(cont->vm_stack, th->stack, VALUE, th->stack_size);
 #endif
-    ec_set_vm_stack(&cont->saved_ec, NULL, 0);
+    sth->stack = 0;
+
     cont_save_machine_stack(th, cont);
 
     /* backup ensure_list to array for search in another context */
@@ -626,10 +494,10 @@ cont_capture(volatile int *volatile stat)
 	rb_ensure_list_t *p;
 	int size = 0;
 	rb_ensure_entry_t *entry;
-	for (p=th->ec->ensure_list; p; p=p->next)
+	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->ec->ensure_list; p; p=p->next) {
+	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;
@@ -638,9 +506,8 @@ cont_capture(volatile int *volatile stat)
     }
 
     if (ruby_setjmp(cont->jmpbuf)) {
-	VALUE value;
+	volatile VALUE value;
 
-	VAR_INITIALIZED(cont);
 	value = cont->value;
 	if (cont->argc == -1) rb_exc_raise(value);
 	cont->value = Qnil;
@@ -653,74 +520,54 @@ cont_capture(volatile int *volatile stat)
     }
 }
 
-static inline void
-fiber_restore_thread(rb_thread_t *th, rb_fiber_t *fib)
-{
-    ec_switch(th, fib);
-    VM_ASSERT(th->ec->fiber_ptr == fib);
-}
-
-static inline void
+static void
 cont_restore_thread(rb_context_t *cont)
 {
-    rb_thread_t *th = GET_THREAD();
+    rb_thread_t *th = GET_THREAD(), *sth = &cont->saved_thread;
 
     /* restore thread context */
     if (cont->type == CONTINUATION_CONTEXT) {
 	/* continuation */
-	rb_execution_context_t *sec = &cont->saved_ec;
-	rb_fiber_t *fib = NULL;
+	VALUE fib;
 
-	if (sec->fiber_ptr != NULL) {
-	    fib = sec->fiber_ptr;
-	}
-	else if (th->root_fiber) {
-	    fib = th->root_fiber;
-	}
+	th->fiber = sth->fiber;
+	fib = th->fiber ? th->fiber : th->root_fiber;
 
-	if (fib && th->ec != &fib->cont.saved_ec) {
-	    ec_switch(th, fib);
+	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;
 	}
-
-	/* copy vm stack */
 #ifdef CAPTURE_JUST_VALID_VM_STACK
-	MEMCPY(th->ec->vm_stack,
-	       cont->saved_vm_stack.ptr,
-	       VALUE, cont->saved_vm_stack.slen);
-	MEMCPY(th->ec->vm_stack + th->ec->vm_stack_size - cont->saved_vm_stack.clen,
-	       cont->saved_vm_stack.ptr + cont->saved_vm_stack.slen,
-	       VALUE, cont->saved_vm_stack.clen);
+	MEMCPY(th->stack, cont->vm_stack, VALUE, cont->vm_stack_slen);
+	MEMCPY(th->stack + sth->stack_size - cont->vm_stack_clen,
+	       cont->vm_stack + cont->vm_stack_slen, VALUE, cont->vm_stack_clen);
 #else
-	MEMCPY(th->ec->vm_stack, cont->saved_vm_stack.ptr, VALUE, sec->vm_stack_size);
+	MEMCPY(th->stack, cont->vm_stack, VALUE, sth->stack_size);
 #endif
-	/* other members of ec */
-
-	th->ec->cfp = sec->cfp;
-	th->ec->safe_level = sec->safe_level;
-	th->ec->raised_flag = sec->raised_flag;
-	th->ec->tag = sec->tag;
-	th->ec->protect_tag = sec->protect_tag;
-	th->ec->root_lep = sec->root_lep;
-	th->ec->root_svar = sec->root_svar;
-	th->ec->ensure_list = sec->ensure_list;
-	th->ec->errinfo = sec->errinfo;
-
-	/* trace on -> trace off */
-	if (th->ec->trace_arg != NULL && sec->trace_arg == NULL) {
-	    GET_VM()->trace_running--;
-	}
-	/* trace off -> trace on */
-	else if (th->ec->trace_arg == NULL && sec->trace_arg != NULL) {
-	    GET_VM()->trace_running++;
-	}
-	th->ec->trace_arg = sec->trace_arg;
-
-	VM_ASSERT(th->ec->vm_stack != NULL);
     }
     else {
 	/* fiber */
-	fiber_restore_thread(th, (rb_fiber_t*)cont);
+	th->stack = sth->stack;
+	th->stack_size = sth->stack_size;
+	th->local_storage = sth->local_storage;
+	th->fiber = cont->self;
     }
+
+    th->cfp = sth->cfp;
+    th->safe_level = sth->safe_level;
+    th->raised_flag = sth->raised_flag;
+    th->state = sth->state;
+    th->status = sth->status;
+    th->tag = sth->tag;
+    th->protect_tag = sth->protect_tag;
+    th->errinfo = sth->errinfo;
+    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
@@ -732,7 +579,7 @@ fiber_set_stack_location(void)
     VALUE *ptr;
 
     SET_MACHINE_STACK_END(&ptr);
-    th->ec->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
@@ -795,13 +642,9 @@ fiber_machine_stack_alloc(size_t size)
 static void
 fiber_initialize_machine_stack_context(rb_fiber_t *fib, size_t size)
 {
-    rb_execution_context_t *sec = &fib->cont.saved_ec;
+    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 */
@@ -811,7 +654,7 @@ fiber_initialize_machine_stack_context(rb_fiber_t *fib, size_t size)
 	    rb_raise(rb_eFiberError, "can't create fiber");
 	}
     }
-    sec->machine.stack_maxsize = size;
+    sth->machine_stack_maxsize = size;
 #else /* not WIN32 */
     ucontext_t *context = &fib->context;
     char *ptr;
@@ -822,14 +665,12 @@ 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);
-    sec->machine.stack_start = (VALUE*)(ptr + STACK_DIR_UPPER(0, size));
-    sec->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
 }
 
@@ -838,36 +679,43 @@ NOINLINE(static void fiber_setcontext(rb_fiber_t *newfib, rb_fiber_t *oldfib));
 static void
 fiber_setcontext(rb_fiber_t *newfib, rb_fiber_t *oldfib)
 {
-    rb_thread_t *th = GET_THREAD();
+    rb_thread_t *th = GET_THREAD(), *sth = &newfib->cont.saved_thread;
 
-    /* save oldfib's machine stack / TODO: is it needed? */
-    if (!FIBER_TERMINATED_P(oldfib)) {
+    if (newfib->status != RUNNING) {
+	fiber_initialize_machine_stack_context(newfib, th->vm->default_params.fiber_machine_stack_size);
+    }
+
+    /* 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");
+    }
+
+    /* save  oldfib's machine stack */
+    if (oldfib->status != TERMINATED) {
 	STACK_GROW_DIR_DETECTION;
-	SET_MACHINE_STACK_END(&th->ec->machine.stack_end);
+	SET_MACHINE_STACK_END(&th->machine_stack_end);
 	if (STACK_DIR_UPPER(0, 1)) {
-	    oldfib->cont.machine.stack_size = th->ec->machine.stack_start - th->ec->machine.stack_end;
-	    oldfib->cont.machine.stack = th->ec->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->ec->machine.stack_end - th->ec->machine.stack_start;
-	    oldfib->cont.machine.stack = th->ec->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_ec.machine.stack_start = th->ec->machine.stack_start;
-
-    /* oldfib->machine.stack_end should be NULL */
-    oldfib->cont.saved_ec.machine.stack_end = NULL;
-
-    /* restore thread context */
-    fiber_restore_thread(th, 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;
 #ifndef _WIN32
-    if (!newfib->context.uc_stack.ss_sp && th->root_fiber != newfib) {
+    if (!newfib->context.uc_stack.ss_sp && th->root_fiber != newfib->cont.self) {
 	rb_bug("non_root_fiber->context.uc_stac.ss_sp should not be NULL");
     }
 #endif
+
     /* swap machine context */
 #ifdef _WIN32
     SwitchToFiber(newfib->fib_handle);
@@ -894,16 +742,16 @@ 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
 
@@ -938,7 +786,7 @@ 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);
@@ -950,7 +798,7 @@ 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
@@ -963,7 +811,7 @@ 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);
@@ -979,7 +827,7 @@ 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]);
@@ -1025,24 +873,6 @@ 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:
  *
@@ -1097,7 +927,7 @@ rb_callcc(VALUE self)
 }
 
 static VALUE
-make_passing_arg(int argc, const VALUE *argv)
+make_passing_arg(int argc, VALUE *argv)
 {
     switch (argc) {
       case 0:
@@ -1206,22 +1036,28 @@ rb_cont_call(int argc, VALUE *argv, VALUE contval)
     rb_thread_t *th = GET_THREAD();
     GetContPtr(contval, cont);
 
-    if (cont_thread_value(cont) != th->self) {
+    if (cont->saved_thread.self != th->self) {
 	rb_raise(rb_eRuntimeError, "continuation called across threads");
     }
-    if (cont->saved_ec.protect_tag != th->ec->protect_tag) {
+    if (cont->saved_thread.protect_tag != th->protect_tag) {
 	rb_raise(rb_eRuntimeError, "continuation called across stack rewinding barrier");
     }
-    if (cont->saved_ec.fiber_ptr) {
-	if (th->ec->fiber_ptr != cont->saved_ec.fiber_ptr) {
+    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->ec->ensure_list, cont->ensure_array);
+    rollback_ensure_stack(contval, th->ensure_list, cont->ensure_array);
 
     cont->argc = argc;
     cont->value = make_passing_arg(argc, argv);
 
+    /* restore `tracing' context. see [Feature #4347] */
+    th->trace_arg = cont->saved_thread.trace_arg;
+
     cont_restore_0(cont, &contval);
     return Qnil; /* unreachable */
 }
@@ -1240,11 +1076,10 @@ rb_cont_call(int argc, VALUE *argv, VALUE contval)
  *  the programmer and not the VM.
  *
  *  As opposed to other stackless light weight concurrency models, each fiber
- *  comes with a stack.  This enables the fiber to be paused from deeply
- *  nested function calls within the fiber block.  See the ruby(1)
- *  manpage to configure the size of the fiber stack(s).
+ *  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
+ *  When a fiber is created it will not run automatically. Rather it must be
  *  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
@@ -1296,7 +1131,7 @@ 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
+    NULL, NULL, RUBY_TYPED_FREE_IMMEDIATELY
 };
 
 static VALUE
@@ -1316,70 +1151,60 @@ fiber_t_alloc(VALUE fibval)
     }
 
     THREAD_MUST_BE_RUNNING(th);
-    fib = ZALLOC(rb_fiber_t);
+    fib = ALLOC(rb_fiber_t);
+    memset(fib, 0, sizeof(rb_fiber_t));
     fib->cont.self = fibval;
     fib->cont.type = FIBER_CONTEXT;
     cont_init(&fib->cont, th);
-    fib->cont.saved_ec.fiber_ptr = fib;
-    fib->prev = NULL;
-
-    /* fib->status == 0 == CREATED
-     * So that we don't need to set status: fiber_status_set(fib, FIBER_CREATED); */
-    VM_ASSERT(FIBER_CREATED_P(fib));
+    fib->prev = Qnil;
+    fib->status = CREATED;
 
     DATA_PTR(fibval) = fib;
 
     return fib;
 }
 
-rb_control_frame_t *
-rb_vm_push_frame(rb_execution_context_t *sec,
-		 const rb_iseq_t *iseq,
-		 VALUE type,
-		 VALUE self,
-		 VALUE specval,
-		 VALUE cref_or_me,
-		 const VALUE *pc,
-		 VALUE *sp,
-		 int local_size,
-		 int stack_max);
-
 static VALUE
 fiber_init(VALUE fibval, VALUE proc)
 {
     rb_fiber_t *fib = fiber_t_alloc(fibval);
     rb_context_t *cont = &fib->cont;
-    rb_execution_context_t *sec = &cont->saved_ec;
-    rb_thread_t *cth = GET_THREAD();
-    size_t fib_stack_size = cth->vm->default_params.fiber_vm_stack_size / sizeof(VALUE);
+    rb_thread_t *th = &cont->saved_thread;
 
     /* initialize cont */
-    cont->saved_vm_stack.ptr = NULL;
-    ec_set_vm_stack(sec, NULL, 0);
-
-    ec_set_vm_stack(sec, ALLOC_N(VALUE, fib_stack_size), fib_stack_size);
-    sec->cfp = (void *)(sec->vm_stack + sec->vm_stack_size);
-
-    rb_vm_push_frame(sec,
-		     NULL,
-		     VM_FRAME_MAGIC_DUMMY | VM_ENV_FLAG_LOCAL | VM_FRAME_FLAG_FINISH | VM_FRAME_FLAG_CFRAME,
-		     Qnil, /* self */
-		     VM_BLOCK_HANDLER_NONE,
-		     0, /* specval */
-		     NULL, /* pc */
-		     sec->vm_stack, /* sp */
-		     0, /* local_size */
-		     0);
-
-    sec->tag = NULL;
-    sec->local_storage = NULL;
-    sec->local_storage_recursive_hash = Qnil;
-    sec->local_storage_recursive_hash_for_trace = Qnil;
-
-    fib->first_proc = proc;
+    cont->vm_stack = 0;
+
+    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 = 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;
+#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->self = Qnil;
+    th->cfp->klass = Qnil;
+    th->cfp->flag = 0;
+    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->first_proc = proc;
 
 #if !FIBER_USE_NATIVE
-    MEMCPY(&cont->jmpbuf, &cth->root_jmpbuf, rb_jmpbuf_t, 1);
+    MEMCPY(&cont->jmpbuf, &th->root_jmpbuf, rb_jmpbuf_t, 1);
 #endif
 
     return fibval;
@@ -1398,376 +1223,289 @@ rb_fiber_new(VALUE (*func)(ANYARGS), VALUE obj)
     return fiber_init(fiber_alloc(rb_cFiber), rb_proc_new(func, obj));
 }
 
-static void rb_fiber_terminate(rb_fiber_t *fib, int need_interrupt);
+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);
+}
 
 void
 rb_fiber_start(void)
 {
-    rb_thread_t * volatile th = GET_THREAD();
-    rb_fiber_t *fib = th->ec->fiber_ptr;
+    rb_thread_t *th = GET_THREAD();
+    rb_fiber_t *fib;
+    rb_context_t *cont;
     rb_proc_t *proc;
-    enum ruby_tag_type state;
-    int need_interrupt = TRUE;
+    int state;
 
-    VM_ASSERT(th->ec == ruby_current_execution_context_ptr);
-    VM_ASSERT(FIBER_RESUMED_P(fib));
+    GetFiberPtr(th->fiber, fib);
+    cont = &fib->cont;
 
-    EC_PUSH_TAG(th->ec);
-    if ((state = EC_EXEC_TAG()) == TAG_NONE) {
-	rb_context_t *cont = &VAR_FROM_MEMORY(fib)->cont;
+    TH_PUSH_TAG(th);
+    if ((state = EXEC_TAG()) == 0) {
 	int argc;
 	const VALUE *argv, args = cont->value;
-	GetProcPtr(fib->first_proc, proc);
+	GetProcPtr(cont->saved_thread.first_proc, proc);
 	argv = (argc = cont->argc) > 1 ? RARRAY_CONST_PTR(args) : &args;
 	cont->value = Qnil;
-	th->ec->errinfo = Qnil;
-	th->ec->root_lep = rb_vm_proc_local_ep(fib->first_proc);
-	th->ec->root_svar = Qfalse;
+	th->errinfo = Qnil;
+	th->root_lep = rb_vm_ep_local_ep(proc->block.ep);
+	th->root_svar = Qnil;
 
-	EXEC_EVENT_HOOK(th->ec, RUBY_EVENT_FIBER_SWITCH, th->self, 0, 0, 0, Qnil);
-	cont->value = rb_vm_invoke_proc(th->ec, proc, argc, argv, VM_BLOCK_HANDLER_NONE);
+	fib->status = RUNNING;
+	cont->value = rb_vm_invoke_proc(th, proc, argc, argv, 0);
     }
-    EC_POP_TAG();
+    TH_POP_TAG();
 
     if (state) {
-	VALUE err = th->ec->errinfo;
-	VM_ASSERT(FIBER_RESUMED_P(fib));
-
 	if (state == TAG_RAISE || state == TAG_FATAL) {
-	    rb_threadptr_pending_interrupt_enque(th, err);
+	    rb_threadptr_pending_interrupt_enque(th, th->errinfo);
 	}
 	else {
-	    err = rb_vm_make_jump_tag_but_local_jump(state, err);
-	    if (!NIL_P(err)) {
+	    VALUE err = rb_vm_make_jump_tag_but_local_jump(state, th->errinfo);
+	    if (!NIL_P(err))
 		rb_threadptr_pending_interrupt_enque(th, err);
-	    }
 	}
-	need_interrupt = TRUE;
+	RUBY_VM_SET_INTERRUPT(th);
     }
 
-    rb_fiber_terminate(fib, need_interrupt);
-    VM_UNREACHABLE(rb_fiber_start);
+    rb_fiber_terminate(fib);
+    rb_bug("rb_fiber_start: unreachable");
 }
 
 static rb_fiber_t *
 root_fiber_alloc(rb_thread_t *th)
 {
-    VALUE fibval = fiber_alloc(rb_cFiber);
-    rb_fiber_t *fib = th->ec->fiber_ptr;
-
-    VM_ASSERT(DATA_PTR(fibval) == NULL);
-    VM_ASSERT(fib->cont.type == ROOT_FIBER_CONTEXT);
-    VM_ASSERT(fib->status == FIBER_RESUMED);
-
-    th->root_fiber = fib;
-    DATA_PTR(fibval) = fib;
-    fib->cont.self = fibval;
-#if FIBER_USE_NATIVE
-#ifdef _WIN32
-    if (fib->fib_handle == 0) {
-	fib->fib_handle = ConvertThreadToFiber(0);
-    }
-#endif
-#endif
-    return fib;
-}
-
-void
-rb_threadptr_root_fiber_setup(rb_thread_t *th)
-{
-    rb_fiber_t *fib = ruby_mimmalloc(sizeof(rb_fiber_t));
-    MEMZERO(fib, rb_fiber_t, 1);
+    rb_fiber_t *fib;
+    /* no need to allocate vm stack */
+    fib = fiber_t_alloc(fiber_alloc(rb_cFiber));
     fib->cont.type = ROOT_FIBER_CONTEXT;
-    fib->cont.saved_ec.fiber_ptr = fib;
-    fib->cont.saved_ec.thread_ptr = th;
-    fiber_status_set(fib, FIBER_RESUMED); /* skip CREATED */
-    th->ec = &fib->cont.saved_ec;
 #if FIBER_USE_NATIVE
 #ifdef _WIN32
-    if (fib->fib_handle == 0) {
-	fib->fib_handle = ConvertThreadToFiber(0);
-    }
+    fib->fib_handle = ConvertThreadToFiber(0);
 #endif
 #endif
-}
-
-void
-rb_threadptr_root_fiber_release(rb_thread_t *th)
-{
-    if (th->root_fiber) {
-	/* ignore. A root fiber object will free th->ec */
-    }
-    else {
-	VM_ASSERT(th->ec->fiber_ptr->cont.type == ROOT_FIBER_CONTEXT);
-	VM_ASSERT(th->ec->fiber_ptr->cont.self == 0);
-	fiber_free(th->ec->fiber_ptr);
-
-	if (th->ec == ruby_current_execution_context_ptr) {
-	    ruby_current_execution_context_ptr = NULL;
-	}
-	th->ec = NULL;
-    }
-}
+    fib->status = RUNNING;
+    fib->prev_fiber = fib->next_fiber = fib;
 
-static inline rb_fiber_t*
-fiber_current(void)
-{
-    rb_execution_context_t *ec = GET_EC();
-    if (ec->fiber_ptr->cont.self == 0) {
-	root_fiber_alloc(rb_ec_thread_ptr(ec));
-    }
-    return ec->fiber_ptr;
-}
-
-static inline rb_fiber_t*
-return_fiber(void)
-{
-    rb_fiber_t *fib = fiber_current();
-    rb_fiber_t *prev = fib->prev;
-
-    if (!prev) {
-	rb_thread_t *th = GET_THREAD();
-	rb_fiber_t *root_fiber = th->root_fiber;
-
-	VM_ASSERT(root_fiber != NULL);
-
-	if (root_fiber == fib) {
-	    rb_raise(rb_eFiberError, "can't yield from root fiber");
-	}
-	return root_fiber;
-    }
-    else {
-	fib->prev = NULL;
-	return prev;
-    }
+    return fib;
 }
 
 VALUE
 rb_fiber_current(void)
 {
-    return fiber_current()->cont.self;
+    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;
+    }
+    return th->fiber;
 }
 
-static inline VALUE
-fiber_store(rb_fiber_t *next_fib, rb_thread_t *th)
+static VALUE
+fiber_store(rb_fiber_t *next_fib)
 {
+    rb_thread_t *th = GET_THREAD();
     rb_fiber_t *fib;
 
-    if (th->ec->fiber_ptr != NULL) {
-	fib = th->ec->fiber_ptr;
+    if (th->fiber) {
+	GetFiberPtr(th->fiber, fib);
+	cont_save_thread(&fib->cont, th);
     }
     else {
-	/* create root fiber */
+	/* create current fiber */
 	fib = root_fiber_alloc(th);
+	th->root_fiber = th->fiber = fib->cont.self;
     }
 
-    VM_ASSERT(FIBER_RESUMED_P(fib) || FIBER_TERMINATED_P(fib));
-    VM_ASSERT(FIBER_RUNNABLE_P(next_fib));
-
-#if FIBER_USE_NATIVE
-    if (FIBER_CREATED_P(next_fib)) {
-	fiber_initialize_machine_stack_context(next_fib, th->vm->default_params.fiber_machine_stack_size);
-    }
-#endif
-
-    if (FIBER_RESUMED_P(fib)) fiber_status_set(fib, FIBER_SUSPENDED);
-
-#if FIBER_USE_NATIVE == 0
-    /* should (re-)allocate stack are before fib->status change to pass fiber_verify() */
+#if !FIBER_USE_NATIVE
     cont_save_machine_stack(th, &fib->cont);
 #endif
 
-    fiber_status_set(next_fib, FIBER_RESUMED);
-
+    if (FIBER_USE_NATIVE || ruby_setjmp(fib->cont.jmpbuf)) {
 #if FIBER_USE_NATIVE
-    fiber_setcontext(next_fib, fib);
-    /* restored */
+	fiber_setcontext(next_fib, fib);
 #ifndef _WIN32
-    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));
+	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 {
-		rb_bug("terminated fiber resumed");
+		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");
+		}
 	    }
+	    terminated_machine_stack.ptr = NULL;
+	    terminated_machine_stack.size = 0;
 	}
-	terminated_machine_stack.ptr = NULL;
-	terminated_machine_stack.size = 0;
-    }
-#endif /* not _WIN32 */
-    fib = th->ec->fiber_ptr;
-    if (fib->cont.argc == -1) rb_exc_raise(fib->cont.value);
-    return fib->cont.value;
-
-#else /* FIBER_USE_NATIVE */
-    if (ruby_setjmp(fib->cont.jmpbuf)) {
+#endif
+#endif
 	/* restored */
-	fib = th->ec->fiber_ptr;
+	GetFiberPtr(th->fiber, fib);
 	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);
-	    VM_UNREACHABLE(fiber_store);
-	}
 	return fib->cont.value;
     }
+#if !FIBER_USE_NATIVE
     else {
-	VALUE undef = Qundef;
-	cont_restore_0(&next_fib->cont, &undef);
-	VM_UNREACHABLE(fiber_store);
+	return Qundef;
     }
-#endif /* FIBER_USE_NATIVE */
+#endif
 }
 
 static inline VALUE
-fiber_switch(rb_fiber_t *fib, int argc, const VALUE *argv, int is_resume)
+fiber_switch(VALUE fibval, int argc, VALUE *argv, int is_resume)
 {
     VALUE value;
-    rb_context_t *cont = &fib->cont;
+    rb_fiber_t *fib;
+    rb_context_t *cont;
     rb_thread_t *th = GET_THREAD();
 
-    /* make sure the root_fiber object is available */
-    if (th->root_fiber == NULL) root_fiber_alloc(th);
+    GetFiberPtr(fibval, fib);
+    cont = &fib->cont;
 
-    if (th->ec->fiber_ptr == fib) {
+    if (th->fiber == fibval) {
 	/* ignore fiber context switch
          * because destination fiber is same as current fiber
 	 */
 	return make_passing_arg(argc, argv);
     }
 
-    if (cont_thread_value(cont) != th->self) {
+    if (cont->saved_thread.self != th->self) {
 	rb_raise(rb_eFiberError, "fiber called across threads");
     }
-    else if (cont->saved_ec.protect_tag != th->ec->protect_tag) {
+    else if (cont->saved_thread.protect_tag != th->protect_tag) {
 	rb_raise(rb_eFiberError, "fiber called across stack rewinding barrier");
     }
-    else if (FIBER_TERMINATED_P(fib)) {
+    else if (fib->status == TERMINATED) {
 	value = rb_exc_new2(rb_eFiberError, "dead fiber called");
-
-	if (!FIBER_TERMINATED_P(th->ec->fiber_ptr)) {
-	    rb_exc_raise(value);
-	    VM_UNREACHABLE(fiber_switch);
+	if (th->fiber != fibval) {
+	    GetFiberPtr(th->fiber, fib);
+	    if (fib->status != TERMINATED) rb_exc_raise(value);
+	    fibval = th->root_fiber;
 	}
 	else {
-	    /* th->ec->fiber_ptr 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) */
-	    VM_ASSERT(FIBER_SUSPENDED_P(th->root_fiber));
-
-	    cont = &th->root_fiber->cont;
-	    cont->argc = -1;
-	    cont->value = value;
+	    fibval = fib->prev;
+	    if (NIL_P(fibval)) fibval = th->root_fiber;
+	}
+	GetFiberPtr(fibval, fib);
+	cont = &fib->cont;
+	cont->argc = -1;
+	cont->value = value;
 #if FIBER_USE_NATIVE
-	    fiber_setcontext(th->root_fiber, th->ec->fiber_ptr);
+	{
+	    VALUE oldfibval;
+	    rb_fiber_t *oldfib;
+	    oldfibval = rb_fiber_current();
+	    GetFiberPtr(oldfibval, oldfib);
+	    fiber_setcontext(fib, oldfib);
+	}
 #else
-	    cont_restore_0(cont, &value);
+	cont_restore_0(cont, &value);
 #endif
-	    VM_UNREACHABLE(fiber_switch);
-	}
     }
 
     if (is_resume) {
-	fib->prev = fiber_current();
+	fib->prev = rb_fiber_current();
+    }
+    else {
+	/* restore `tracing' context. see [Feature #4347] */
+	th->trace_arg = cont->saved_thread.trace_arg;
     }
-
-    VM_ASSERT(FIBER_RUNNABLE_P(fib));
 
     cont->argc = argc;
     cont->value = make_passing_arg(argc, argv);
-    value = fiber_store(fib, th);
-    RUBY_VM_CHECK_INTS(th->ec);
 
-    EXEC_EVENT_HOOK(th->ec, RUBY_EVENT_FIBER_SWITCH, th->self, 0, 0, 0, Qnil);
+    value = fiber_store(fib);
+#if !FIBER_USE_NATIVE
+    if (value == Qundef) {
+	cont_restore_0(cont, &value);
+	rb_bug("rb_fiber_resume: unreachable");
+    }
+#endif
+    RUBY_VM_CHECK_INTS(th);
 
     return value;
 }
 
 VALUE
-rb_fiber_transfer(VALUE fibval, int argc, const VALUE *argv)
+rb_fiber_transfer(VALUE fib, int argc, VALUE *argv)
 {
-    rb_fiber_t *fib;
-    GetFiberPtr(fibval, fib);
     return fiber_switch(fib, argc, argv, 0);
 }
 
-void
-rb_fiber_close(rb_fiber_t *fib)
-{
-    VALUE *vm_stack = fib->cont.saved_ec.vm_stack;
-    fiber_status_set(fib, FIBER_TERMINATED);
-    if (fib->cont.type == ROOT_FIBER_CONTEXT) {
-	rb_thread_recycle_stack_release(vm_stack);
-    }
-    else {
-	ruby_xfree(vm_stack);
-    }
-    ec_set_vm_stack(&fib->cont.saved_ec, NULL, 0);
-
-#if !FIBER_USE_NATIVE
-    /* should not mark machine stack any more */
-    fib->cont.saved_ec.machine.stack_end = NULL;
-#endif
-}
-
-static void
-rb_fiber_terminate(rb_fiber_t *fib, int need_interrupt)
-{
-    VALUE value = fib->cont.value;
-    rb_fiber_t *ret_fib;
-
-    VM_ASSERT(FIBER_RESUMED_P(fib));
-    rb_fiber_close(fib);
-
-#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
-
-    ret_fib = return_fiber();
-    if (need_interrupt) RUBY_VM_SET_INTERRUPT(&ret_fib->cont.saved_ec);
-    fiber_switch(ret_fib, 1, &value, 0);
-}
-
 VALUE
-rb_fiber_resume(VALUE fibval, int argc, const VALUE *argv)
+rb_fiber_resume(VALUE fibval, int argc, VALUE *argv)
 {
     rb_fiber_t *fib;
     GetFiberPtr(fibval, fib);
 
-    if (fib->prev != 0 || fib->cont.type == ROOT_FIBER_CONTEXT) {
+    if (fib->prev != Qnil || fib->cont.type == ROOT_FIBER_CONTEXT) {
 	rb_raise(rb_eFiberError, "double resume");
     }
-    if (fib->transferred != 0) {
+    if (fib->transfered != 0) {
 	rb_raise(rb_eFiberError, "cannot resume transferred Fiber");
     }
 
-    return fiber_switch(fib, argc, argv, 1);
+    return fiber_switch(fibval, argc, argv, 1);
 }
 
 VALUE
-rb_fiber_yield(int argc, const VALUE *argv)
+rb_fiber_yield(int argc, VALUE *argv)
 {
-    return fiber_switch(return_fiber(), argc, argv, 0);
+    return rb_fiber_transfer(return_fiber(), argc, argv);
 }
 
 void
 rb_fiber_reset_root_local_storage(VALUE thval)
 {
-    rb_thread_t *th = rb_thread_ptr(thval);
+    rb_thread_t *th;
+    rb_fiber_t	*fib;
 
-    if (th->root_fiber && th->root_fiber != th->ec->fiber_ptr) {
-	th->ec->local_storage = th->root_fiber->cont.saved_ec.local_storage;
+    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;
     }
 }
 
@@ -1783,9 +1521,9 @@ rb_fiber_reset_root_local_storage(VALUE thval)
 VALUE
 rb_fiber_alive_p(VALUE fibval)
 {
-    const rb_fiber_t *fib;
+    rb_fiber_t *fib;
     GetFiberPtr(fibval, fib);
-    return FIBER_TERMINATED_P(fib) ? Qfalse : Qtrue;
+    return fib->status != TERMINATED ? Qtrue : Qfalse;
 }
 
 /*
@@ -1847,7 +1585,7 @@ 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
@@ -1859,8 +1597,8 @@ rb_fiber_m_transfer(int argc, VALUE *argv, VALUE fibval)
 {
     rb_fiber_t *fib;
     GetFiberPtr(fibval, fib);
-    fib->transferred = 1;
-    return fiber_switch(fib, argc, argv, 0);
+    fib->transfered = 1;
+    return rb_fiber_transfer(fibval, argc, argv);
 }
 
 /*
@@ -1893,33 +1631,7 @@ rb_fiber_s_current(VALUE klass)
     return rb_fiber_current();
 }
 
-/*
- * call-seq:
- *   fiber.to_s   -> string
- *
- * Returns fiber information string.
- *
- */
-
-static VALUE
-fiber_to_s(VALUE fibval)
-{
-    const rb_fiber_t *fib;
-    const rb_proc_t *proc;
-    char status_info[0x10];
 
-    GetFiberPtr(fibval, fib);
-    snprintf(status_info, 0x10, " (%s)", fiber_status_name(fib->status));
-    if (!rb_obj_is_proc(fib->first_proc)) {
-	VALUE str = rb_any_to_s(fibval);
-	strlcat(status_info, ">", sizeof(status_info));
-	rb_str_set_len(str, RSTRING_LEN(str)-1);
-	rb_str_cat_cstr(str, status_info);
-	return str;
-    }
-    GetProcPtr(fib->first_proc, proc);
-    return rb_block_to_s(fibval, &proc->block, status_info);
-}
 
 /*
  *  Document-class: FiberError
@@ -1947,7 +1659,7 @@ Init_Cont(void)
 #else /* not WIN32 */
     pagesize = sysconf(_SC_PAGESIZE);
 #endif
-    SET_MACHINE_STACK_END(&th->ec->machine.stack_end);
+    SET_MACHINE_STACK_END(&th->machine_stack_end);
 #endif
 
     rb_cFiber = rb_define_class("Fiber", rb_cObject);
@@ -1956,8 +1668,6 @@ Init_Cont(void)
     rb_define_singleton_method(rb_cFiber, "yield", rb_fiber_s_yield, -1);
     rb_define_method(rb_cFiber, "initialize", rb_fiber_init, 0);
     rb_define_method(rb_cFiber, "resume", rb_fiber_m_resume, -1);
-    rb_define_method(rb_cFiber, "to_s", fiber_to_s, 0);
-    rb_define_alias(rb_cFiber, "inspect", "to_s");
 }
 
 RUBY_SYMBOL_EXPORT_BEGIN
diff --git a/coverage/README b/coverage/README
deleted file mode 100644
index 7e4ff59e2a..0000000000
--- a/coverage/README
+++ /dev/null
@@ -1,17 +0,0 @@
-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 192cf43b37..5bd414d786 100644
--- a/cygwin/GNUmakefile.in
+++ b/cygwin/GNUmakefile.in
@@ -3,7 +3,6 @@ include Makefile
 ENABLE_SHARED=@ENABLE_SHARED@
 DLLWRAP = @DLLWRAP@ --target=@target_os@ --driver-name="$(CC)"
 WINDRES = @WINDRES@ --preprocessor="$(CPP) -xc" -DRC_INVOKED
-STRIP = @STRIP@
 
 ifeq (@target_os@,cygwin)
   DLL_BASE_NAME := $(LIBRUBY_SO:.dll=)
@@ -11,6 +10,9 @@ else
   DLL_BASE_NAME := $(RUBY_SO_NAME)
   DLLWRAP += -mno-cygwin
   VPATH := $(VPATH):$(srcdir)/win32
+  STUBPROGRAM = rubystub$(EXEEXT)
+  IGNOREDPATTERNS = %~ .% %.orig %.rej \#%\#
+  SCRIPTPROGRAMS = $(addsuffix $(EXEEXT),$(filter-out $(IGNOREDPATTERNS),$(notdir $(wildcard $(srcdir)/bin/*))))
 endif
 
 ifneq ($(ENABLE_SHARED),yes)
@@ -30,15 +32,20 @@ WPROGRAM = $(RUBYW_INSTALL_NAME)$(EXEEXT)
 
 -include uncommon.mk
 
-include $(srcdir)/defs/gmake.mk
-
 SOLIBS := $(DLL_BASE_NAME).res.@OBJEXT@ $(SOLIBS)
-override EXTOBJS += $(if $(filter-out $(RUBYW_INSTALL_NAME),$(@:$(EXEEXT)=)),$(RUBY_INSTALL_NAME),$(@:$(EXEEXT)=)).res.$(OBJEXT)
+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
 
 ruby: $(PROGRAM)
 rubyw: $(WPROGRAM)
+stub: $(STUBPROGRAM)
+scriptbin: $(SCRIPTPROGRAMS)
+
+%$(EXEEXT): bin/% $(STUBPROGRAM)
+	$(ECHO) generating $@
+	$(Q) { cat $(STUBPROGRAM); echo; sed -e '1{' -e '/^#!.*ruby/!i\' -e '#!/bin/ruby' -e '}' $<; } > $@
+	$(Q) chmod +x $@
 
 $(LIBRUBY): $(RUBY_EXP) $(LIBRUBY_SO)
 $(RUBY_EXP) $(LIBRUBY_SO): $(DLL_BASE_NAME).res.@OBJEXT@
@@ -47,11 +54,11 @@ $(RUBY_EXP) $(LIBRUBY_SO): $(DLL_BASE_NAME).res.@OBJEXT@
 	$(ECHO) compiling $@
 	$(Q) $(WINDRES) --include-dir . --include-dir $(<D) --include-dir $(srcdir)/win32 $< $@
 
-%.rc: $(RBCONFIG) $(srcdir)/revision.h $(srcdir)/win32/resource.rb
+$(RCFILES): $(RBCONFIG) $(srcdir)/revision.h $(srcdir)/win32/resource.rb
 	$(ECHO) generating $@
 	$(Q) $(MINIRUBY) $(srcdir)/win32/resource.rb \
 	  -ruby_name=$(RUBY_INSTALL_NAME) -rubyw_name=$(RUBYW_INSTALL_NAME) \
-	  -so_name=$(DLL_BASE_NAME) -output=$(*F) \
+	  -so_name=$(DLL_BASE_NAME) \
 	  . $(icondirs) $(srcdir)/win32
 
 $(PROGRAM): $(RUBY_INSTALL_NAME).res.@OBJEXT@
@@ -60,7 +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): $(RUBY_INSTALL_NAME).res.@OBJEXT@
+$(STUBPROGRAM): $(RUBY_INSTALL_NAME).res.@OBJEXT@ stub.@OBJEXT@
+	@rm -f $@
+	$(ECHO) linking $@
+	$(Q) $(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) \
+	  stub.@OBJEXT@ $(EXTOBJS) $(LIBRUBYARG) $(LIBS) -o $@
 
 $(RUBY_EXP): $(LIBRUBY_A)
 	$(ECHO) creating $@
@@ -75,15 +86,7 @@ GNUmakefile:	$(srcdir)/cygwin/GNUmakefile.in
 ifeq (@target_os@,mingw32)
 $(OBJS) $(MAINOBJ): win32.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=$(MSYS2_ARG_CONV_EXCL_PARAM)
-
+dir.$(OBJEXT) win32.$(OBJEXT): win32/dir.h
 endif
 
 $(LIBRUBY_SO): $(RUBYDEF)
@@ -96,7 +99,7 @@ clean-local::
 	@$(RM) $(RUBYDEF)
 
 ifeq (@target_os@,cygwin)
-cygwin-$(RUBY_INSTALL_NAME)$(MAJOR)$(MINOR)0.dll: $(LIBRUBY_A) $(RUBYDEF)
+cygwin-$(RUBY_INSTALL_NAME)$(MAJOR)$(MINOR)$(TEENY).dll: $(LIBRUBY_A) $(RUBYDEF)
 	$(ECHO) generating $@
 	$(Q) @DLLWRAP@ -s --def=$(RUBYDEF) -o $@
 endif
diff --git a/debug.c b/debug.c
index f811ec6779..2f1e03cc3a 100644
--- a/debug.c
+++ b/debug.c
@@ -15,7 +15,6 @@
 #include "vm_debug.h"
 #include "eval_intern.h"
 #include "vm_core.h"
-#include "symbol.h"
 #include "id.h"
 
 /* for gdb */
@@ -26,48 +25,51 @@ const union {
     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_robject_flags     robject_flags;
-    enum ruby_rmodule_flags     rmodule_flags;
-    enum ruby_rstring_flags     rstring_flags;
-    enum ruby_rarray_flags      rarray_flags;
     enum {
-	RUBY_FMODE_READABLE		= FMODE_READABLE,
-	RUBY_FMODE_WRITABLE		= FMODE_WRITABLE,
-	RUBY_FMODE_READWRITE		= FMODE_READWRITE,
-	RUBY_FMODE_BINMODE		= FMODE_BINMODE,
-	RUBY_FMODE_SYNC 		= FMODE_SYNC,
-	RUBY_FMODE_TTY			= FMODE_TTY,
-	RUBY_FMODE_DUPLEX		= FMODE_DUPLEX,
-	RUBY_FMODE_APPEND		= FMODE_APPEND,
-	RUBY_FMODE_CREATE		= FMODE_CREATE,
-	RUBY_FMODE_NOREVLOOKUP		= 0x00000100,
-	RUBY_FMODE_TRUNC		= FMODE_TRUNC,
-	RUBY_FMODE_TEXTMODE		= FMODE_TEXTMODE,
-	RUBY_FMODE_PREP 		= 0x00010000,
-	RUBY_FMODE_SETENC_BY_BOM	= FMODE_SETENC_BY_BOM,
-	RUBY_FMODE_UNIX 		= 0x00200000,
-	RUBY_FMODE_INET 		= 0x00400000,
-	RUBY_FMODE_INET6		= 0x00800000,
-
+        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_WB_PROTECTED     = FL_WB_PROTECTED,
+        RUBY_FL_PROMOTED    = FL_PROMOTED,
+        RUBY_FL_FINALIZE    = FL_FINALIZE,
+        RUBY_FL_TAINT       = FL_TAINT,
+        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,
         RUBY_NODE_FL_NEWLINE   = NODE_FL_NEWLINE
     } various;
-    union {
-	enum imemo_type                     types;
-	enum {RUBY_IMEMO_MASK = IMEMO_MASK} mask;
-	struct RIMemo                      *ptr;
-    } imemo;
-    struct RSymbol *symbol_ptr;
-    enum vm_call_flag_bits vm_call_flags;
 } 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)
@@ -89,16 +91,14 @@ ruby_debug_printf(const char *format, ...)
     va_end(ap);
 }
 
-#include "gc.h"
-
 VALUE
 ruby_debug_print_value(int level, int debug_level, const char *header, VALUE obj)
 {
     if (level < debug_level) {
-	char buff[0x100];
-	rb_raw_obj_info(buff, 0x100, obj);
-
-	fprintf(stderr, "DBG> %s: %s\n", header, buff);
+	VALUE str;
+	str = rb_inspect(obj);
+	fprintf(stderr, "DBG> %s: %s\n", header,
+		obj == (VALUE)(SIGNED_VALUE)-1 ? "" : StringValueCStr(str));
 	fflush(stderr);
     }
     return obj;
@@ -136,87 +136,23 @@ ruby_debug_breakpoint(void)
     /* */
 }
 
-#if defined _WIN32
-# if RUBY_MSVCRT_VERSION >= 80
-extern int ruby_w32_rtc_error;
-# endif
-#endif
-#if defined _WIN32 || defined __CYGWIN__
-#include <windows.h>
-UINT ruby_w32_codepage[2];
-#endif
-extern int ruby_rgengc_debug;
-
-int
-ruby_env_debug_option(const char *str, int len, void *arg)
+static void
+set_debug_option(const char *str, int len, void *arg)
 {
-    int ov;
-    size_t retlen;
-    unsigned long n;
-#define SET_WHEN(name, var, val) do {	    \
+#define SET_WHEN(name, var) do {	    \
 	if (len == sizeof(name) - 1 &&	    \
 	    strncmp(str, (name), len) == 0) { \
-	    (var) = (val);		    \
-	    return 1;			    \
+	    extern int var;	    \
+	    var = 1;		    \
+	    return;			    \
 	}				    \
     } while (0)
-#define NAME_MATCH_VALUE(name)				\
-    ((size_t)len >= sizeof(name)-1 &&			\
-     strncmp(str, (name), sizeof(name)-1) == 0 &&	\
-     ((len == sizeof(name)-1 && !(len = 0)) ||		\
-      (str[sizeof(name)-1] == '=' &&			\
-       (str += sizeof(name), len -= sizeof(name), 1))))
-#define SET_UINT(val) do { \
-	n = ruby_scan_digits(str, len, 10, &retlen, &ov); \
-	if (!ov && retlen) { \
-	    val = (unsigned int)n; \
-	} \
-	str += retlen; \
-	len -= retlen; \
-    } while (0)
-#define SET_UINT_LIST(name, vals, num) do { \
-	int i; \
-	for (i = 0; i < (num); ++i) { \
-	    SET_UINT((vals)[i]); \
-	    if (!len || *str != ':') break; \
-	    ++str; \
-	    --len; \
-	} \
-	if (len > 0) { \
-	    fprintf(stderr, "ignored "name" option: `%.*s'\n", len, str); \
-	} \
-    } while (0)
-#define SET_WHEN_UINT(name, vals, num, req) \
-    if (NAME_MATCH_VALUE(name)) SET_UINT_LIST(name, vals, num);
-
-    SET_WHEN("gc_stress", *ruby_initial_gc_stress_ptr, Qtrue);
-    SET_WHEN("core", ruby_enable_coredump, 1);
-    if (NAME_MATCH_VALUE("rgengc")) {
-	if (!len) ruby_rgengc_debug = 1;
-	else SET_UINT_LIST("rgengc", &ruby_rgengc_debug, 1);
-	return 1;
-    }
-#if defined _WIN32
-# if RUBY_MSVCRT_VERSION >= 80
-    SET_WHEN("rtc_error", ruby_w32_rtc_error, 1);
-# endif
+    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);
 #endif
-#if defined _WIN32 || defined __CYGWIN__
-    if (NAME_MATCH_VALUE("codepage")) {
-	if (!len) fprintf(stderr, "missing codepage argument");
-	else SET_UINT_LIST("codepage", ruby_w32_codepage, numberof(ruby_w32_codepage));
-	return 1;
-    }
-#endif
-    return 0;
-}
-
-static void
-set_debug_option(const char *str, int len, void *arg)
-{
-    if (!ruby_env_debug_option(str, len, arg)) {
-	fprintf(stderr, "unexpected debug option: %.*s\n", len, str);
-    }
+    fprintf(stderr, "unexpected debug option: %.*s\n", len, str);
 }
 
 void
diff --git a/debug_counter.c b/debug_counter.c
deleted file mode 100644
index 6000f98c54..0000000000
--- a/debug_counter.c
+++ /dev/null
@@ -1,41 +0,0 @@
-/**********************************************************************
-
-  debug_counter.c -
-
-  created at: Tue Feb 21 16:51:18 2017
-
-  Copyright (C) 2017 Koichi Sasada
-
-**********************************************************************/
-
-#include "debug_counter.h"
-#include <stdio.h>
-
-#if USE_DEBUG_COUNTER
-#include "internal.h"
-
-static const char *const debug_counter_names[] = {
-    ""
-#define RB_DEBUG_COUNTER(name) #name,
-#include "debug_counter.h"
-#undef RB_DEBUG_COUNTER
-};
-
-size_t rb_debug_counter[numberof(debug_counter_names)];
-
-__attribute__((destructor))
-static void
-rb_debug_counter_show_results(void)
-{
-    const char *env = getenv("RUBY_DEBUG_COUNTER_DISABLE");
-    if (env == NULL || strcmp("1", env) != 0) {
-	int i;
-	for (i=0; i<RB_DEBUG_COUNTER_MAX; i++) {
-	    fprintf(stderr, "[RUBY_DEBUG_COUNTER]\t%s\t%"PRIuSIZE"\n",
-		    debug_counter_names[i],
-		    rb_debug_counter[i]);
-	}
-    }
-}
-
-#endif /* USE_DEBUG_COUNTER */
diff --git a/debug_counter.h b/debug_counter.h
deleted file mode 100644
index f0f4e5ed0b..0000000000
--- a/debug_counter.h
+++ /dev/null
@@ -1,109 +0,0 @@
-/**********************************************************************
-
-  debug_counter.h -
-
-  created at: Tue Feb 21 16:51:18 2017
-
-  Copyright (C) 2017 Koichi Sasada
-
-**********************************************************************/
-
-#ifndef USE_DEBUG_COUNTER
-#define USE_DEBUG_COUNTER 0
-#endif
-
-#ifdef RB_DEBUG_COUNTER
-
-/* method search */
-RB_DEBUG_COUNTER(mc_inline_hit)
-RB_DEBUG_COUNTER(mc_inline_miss)
-RB_DEBUG_COUNTER(mc_global_hit)
-RB_DEBUG_COUNTER(mc_global_miss)
-RB_DEBUG_COUNTER(mc_global_state_miss)
-RB_DEBUG_COUNTER(mc_class_serial_miss)
-RB_DEBUG_COUNTER(mc_cme_complement)
-RB_DEBUG_COUNTER(mc_cme_complement_hit)
-RB_DEBUG_COUNTER(mc_search_super)
-
-/* ivar access */
-RB_DEBUG_COUNTER(ivar_get_ic_hit)
-RB_DEBUG_COUNTER(ivar_get_ic_miss)
-RB_DEBUG_COUNTER(ivar_get_ic_miss_serial)
-RB_DEBUG_COUNTER(ivar_get_ic_miss_unset)
-RB_DEBUG_COUNTER(ivar_get_ic_miss_noobject)
-RB_DEBUG_COUNTER(ivar_set_ic_hit)
-RB_DEBUG_COUNTER(ivar_set_ic_miss)
-RB_DEBUG_COUNTER(ivar_set_ic_miss_serial)
-RB_DEBUG_COUNTER(ivar_set_ic_miss_unset)
-RB_DEBUG_COUNTER(ivar_set_ic_miss_oorange)
-RB_DEBUG_COUNTER(ivar_set_ic_miss_noobject)
-RB_DEBUG_COUNTER(ivar_get_base)
-RB_DEBUG_COUNTER(ivar_set_base)
-
-/* lvar access */
-RB_DEBUG_COUNTER(lvar_get)
-RB_DEBUG_COUNTER(lvar_get_dynamic)
-RB_DEBUG_COUNTER(lvar_set)
-RB_DEBUG_COUNTER(lvar_set_dynamic)
-RB_DEBUG_COUNTER(lvar_set_slowpath)
-
-/* object counts */
-RB_DEBUG_COUNTER(obj_free)
-
-RB_DEBUG_COUNTER(obj_str_ptr)
-RB_DEBUG_COUNTER(obj_str_embed)
-RB_DEBUG_COUNTER(obj_str_shared)
-RB_DEBUG_COUNTER(obj_str_nofree)
-RB_DEBUG_COUNTER(obj_str_fstr)
-
-RB_DEBUG_COUNTER(obj_ary_ptr)
-RB_DEBUG_COUNTER(obj_ary_embed)
-
-RB_DEBUG_COUNTER(obj_obj_ptr)
-RB_DEBUG_COUNTER(obj_obj_embed)
-
-/* load */
-RB_DEBUG_COUNTER(load_files)
-RB_DEBUG_COUNTER(load_path_is_not_realpath)
-
-#endif
-
-#ifndef RUBY_DEBUG_COUNTER_H
-#define RUBY_DEBUG_COUNTER_H 1
-
-#if !defined(__GNUC__) && USE_DEBUG_COUNTER
-#error "USE_DEBUG_COUNTER is not supported by other than __GNUC__"
-#endif
-
-enum rb_debug_counter_type {
-#define RB_DEBUG_COUNTER(name) RB_DEBUG_COUNTER_##name,
-#include "debug_counter.h"
-    RB_DEBUG_COUNTER_MAX
-#undef RB_DEBUG_COUNTER
-};
-
-#if USE_DEBUG_COUNTER
-#include "ruby/ruby.h"
-
-extern size_t rb_debug_counter[];
-
-inline static int
-rb_debug_counter_add(enum rb_debug_counter_type type, int add, int cond)
-{
-    if (cond) {
-	rb_debug_counter[(int)type] += add;
-    }
-    return cond;
-}
-
-#define RB_DEBUG_COUNTER_INC(type)                rb_debug_counter_add(RB_DEBUG_COUNTER_##type, 1, 1)
-#define RB_DEBUG_COUNTER_INC_UNLESS(type, cond) (!rb_debug_counter_add(RB_DEBUG_COUNTER_##type, 1, !(cond)))
-#define RB_DEBUG_COUNTER_INC_IF(type, cond)       rb_debug_counter_add(RB_DEBUG_COUNTER_##type, 1, (cond))
-
-#else
-#define RB_DEBUG_COUNTER_INC(type)              ((void)0)
-#define RB_DEBUG_COUNTER_INC_UNLESS(type, cond) (cond)
-#define RB_DEBUG_COUNTER_INC_IF(type, cond)     (cond)
-#endif
-
-#endif /* RUBY_DEBUG_COUNTER_H */
diff --git a/defs/default_gems b/defs/default_gems
new file mode 100644
index 0000000000..e73e383b26
--- /dev/null
+++ b/defs/default_gems
@@ -0,0 +1,5 @@
+# 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
index d961e27f77..0acb88ef57 100644
--- a/defs/gmake.mk
+++ b/defs/gmake.mk
@@ -1,72 +1,23 @@
 # -*- makefile-gmake -*-
-gnumake = yes
-override gnumake_recursive := $(if $(findstring n,$(firstword $(MFLAGS))),,+)
-override mflags := $(filter-out -j%,$(MFLAGS))
-MSPECOPT += $(if $(filter -j%,$(MFLAGS)),-j)
+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 += $(TEST_DEPENDS) $(if $(filter check%,$(MAKECMDGOALS)),main)
 
-CHECK_TARGETS := great exam love check test check% test% btest%
-# expand test targets, and those dependents
-TEST_TARGETS := $(filter $(CHECK_TARGETS),$(MAKECMDGOALS))
-TEST_DEPENDS := $(filter-out commit $(TEST_TARGETS),$(MAKECMDGOALS))
-TEST_TARGETS := $(patsubst great,exam,$(TEST_TARGETS))
-TEST_DEPENDS := $(filter-out great $(TEST_TARGETS),$(TEST_DEPENDS))
-TEST_TARGETS := $(patsubst exam,check test-rubyspec,$(TEST_TARGETS))
-TEST_TARGETS := $(patsubst test-rubyspec,test-spec,$(TEST_TARGETS))
-TEST_DEPENDS := $(filter-out exam $(TEST_TARGETS),$(TEST_DEPENDS))
-TEST_TARGETS := $(patsubst love,check,$(TEST_TARGETS))
-TEST_DEPENDS := $(filter-out love $(TEST_TARGETS),$(TEST_DEPENDS))
-TEST_TARGETS := $(patsubst check,test test-testframework test-almost,$(patsubst check-%,test test-%,$(TEST_TARGETS)))
-TEST_DEPENDS := $(filter-out check $(TEST_TARGETS),$(TEST_DEPENDS))
-TEST_TARGETS := $(patsubst test,btest-ruby test-knownbug test-basic,$(TEST_TARGETS))
-TEST_DEPENDS := $(filter-out test $(TEST_TARGETS),$(TEST_DEPENDS))
-TEST_DEPENDS += $(if $(filter great exam love check,$(MAKECMDGOALS)),all exts)
-
-ifneq ($(filter -O0 -Od,$(optflags)),)
-override XCFLAGS := $(filter-out -D_FORTIFY_SOURCE=%,$(XCFLAGS))
+ifneq ($(filter check% test,$(MAKECMDGOALS)),)
+yes-test-knownbug: $(TEST_DEPENDS) yes-btest-ruby
+yes-btest-ruby: $(TEST_DEPENDS) yes-test-sample
+yes-test-sample: $(TEST_DEPENDS)
 endif
-
-ifeq ($(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 $(SHOWFLAGS)
+ifneq ($(filter check%,$(MAKECMDGOALS)) $(filter test-all,$(TEST_TARGETS)),)
+yes-test-all yes-test-ruby: $(filter-out %test-all %test-ruby check%,$(TEST_TARGETS))
 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 %,$(value arch)))))
+ifneq ($(filter check%,$(MAKECMDGOALS))$(if $(filter test-all,$(MAKECMDGOALS)),$(filter test-knownbug,$(MAKECMDGOALS))),)
+yes-test-all yes-test-ruby: yes-test-knownbug
 endif
 
-.PHONY: $(addprefix yes-,$(TEST_TARGETS))
-
-ifneq ($(filter-out btest%,$(TEST_TARGETS)),)
-$(addprefix yes-,$(TEST_TARGETS)): $(TEST_DEPENDS)
-endif
-
-ORDERED_TEST_TARGETS := $(filter $(TEST_TARGETS), \
-	btest-ruby test-knownbug test-basic \
-	test-testframework test-ruby test-almost test-all \
-	test-spec \
-	)
-prev_test := $(if $(filter test-spec,$(ORDERED_TEST_TARGETS)),test-spec-precheck)
-$(foreach test,$(ORDERED_TEST_TARGETS), \
-	$(eval yes-$(value test) no-$(value test): $(value prev_test)); \
-	$(eval prev_test := $(value test)))
+$(TEST_TARGETS): $(TEST_DEPENDS)
 
 ifneq ($(if $(filter install,$(MAKECMDGOALS)),$(filter uninstall,$(MAKECMDGOALS))),)
 install-targets := $(filter install uninstall,$(MAKECMDGOALS))
@@ -74,73 +25,5 @@ $(word 1,$(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 ($(filter love,$(MAKECMDGOALS)),)
-showflags: up
-sudo-precheck: test yes-test-testframework no-test-testframework
-install-prereq: sudo-precheck
-yes-test-all no-test-all: install
-yes-test-almost no-test-almost: install
-endif
-ifneq ($(filter great,$(MAKECMDGOALS)),)
-love: test-rubyspec
-endif
-
-$(srcdir)/missing/des_tables.c: $(srcdir)/missing/crypt.c
-ifeq ($(if $(filter yes,$(CROSS_COMPILING)),,$(CC)),)
-	touch $@
-else
-	@$(ECHO) building make_des_table
-	$(CC) $(CPPFLAGS) -DDUMP $(LDFLAGS) $(XLDFLAGS) $(LIBS) -omake_des_table $(srcdir)/missing/crypt.c
-	@[ -x ./make_des_table ]
-	@$(ECHO) generating $@
-	$(Q) $(MAKEDIRS) $(@D)
-	$(Q) ./make_des_table > $@.new
-	$(Q) mv $@.new $@
-	$(Q) $(RMALL) make_des_table*
-endif
-
-STUBPROGRAM = rubystub$(EXEEXT)
-IGNOREDPATTERNS = %~ .% %.orig %.rej \#%\#
-SCRIPTBINDIR := $(if $(EXEEXT),,exec/)
-SCRIPTPROGRAMS = $(addprefix $(SCRIPTBINDIR),$(addsuffix $(EXEEXT),$(filter-out $(IGNOREDPATTERNS),$(notdir $(wildcard $(srcdir)/bin/*)))))
-
-stub: $(STUBPROGRAM)
-scriptbin: $(SCRIPTPROGRAMS)
-ifneq ($(STUBPROGRAM),rubystub)
-rubystub: $(STUBPROGRAM)
-endif
-
-$(SCRIPTPROGRAMS): $(STUBPROGRAM)
-
-$(STUBPROGRAM): rubystub.$(OBJEXT) $(LIBRUBY) $(MAINOBJ) $(OBJS) $(EXTOBJS) $(SETUP) $(PREP)
-
-rubystub$(EXEEXT):
-	@rm -f $@
-	$(ECHO) linking $@
-	$(Q) $(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) rubystub.$(OBJEXT) $(EXTOBJS) $(LIBRUBYARG) $(MAINLIBS) $(LIBS) $(EXTLIBS) $(OUTFLAG)$@
-	$(Q) $(POSTLINK)
-	$(if $(STRIP),$(Q) $(STRIP) $@)
-
-$(SCRIPTBINDIR)%$(EXEEXT): bin/% $(STUBPROGRAM) \
-			   $(if $(SCRIPTBINDIR),$(TIMESTAMPDIR)/.exec.time)
-	$(ECHO) generating $@
-	$(Q) { cat $(STUBPROGRAM); echo; sed -e '1{' -e '/^#!.*ruby/!i\' -e '#!/bin/ruby' -e '}' $<; } > $@
-	$(Q) chmod +x $@
-	$(Q) $(POSTLINK)
-
-$(TIMESTAMPDIR)/.exec.time:
-	$(Q) mkdir exec
-	$(Q) exit > $@
-
-.PHONY: commit
-commit: $(if $(filter commit,$(MAKECMDGOALS)),$(filter-out commit,$(MAKECMDGOALS)))
-	@$(BASERUBY) -C "$(srcdir)" -I./tool -rvcs -e 'VCS.detect(".").commit'
-	$(Q)$(MAKE) $(mflags) Q=$(Q) REVISION_FORCE=PHONY update-src srcs all-incs
-
-ifeq ($(words $(filter update-gems extract-gems,$(MAKECMDGOALS))),2)
-extract-gems: update-gems
+install: uninstall
 endif
diff --git a/defs/id.def b/defs/id.def
index f30b993bd9..53ed3775ad 100644
--- a/defs/id.def
+++ b/defs/id.def
@@ -1,7 +1,5 @@
 # -*- mode: ruby; coding: us-ascii -*-
 firstline, predefined = __LINE__+1, %[\
-  max
-  min
   freeze
   inspect
   intern
@@ -28,26 +26,6 @@ firstline, predefined = __LINE__+1, %[\
   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
-  to_r
-  bt
-  bt_locations
-  call
-  mesg
-  exception
-  not                                                   NOT
-  and                                                   AND
-  or                                                    OR
-
   _                                                     UScore
   "/*NULL*/"                                            NULL
   empty?
@@ -66,45 +44,6 @@ firstline, predefined = __LINE__+1, %[\
   core#hash_merge_ary
   core#hash_merge_ptr
   core#hash_merge_kwd
-
-  -                                                     debug#created_info
-
-  $_                                                    LASTLINE
-  $~                                                    BACKREF
-]
-
-# VM ID         OP      Parser Token
-token_ops = %[\
-  Dot2          ..      DOT2
-  Dot3          ...     DOT3
-  UPlus         +@      UPLUS
-  UMinus        -@      UMINUS
-  Pow           **      POW
-  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        ::
-  ANDOP         &&
-  OROP          ||
-  ANDDOT        &.
 ]
 
 class KeywordError < RuntimeError
@@ -120,8 +59,6 @@ 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
@@ -138,10 +75,6 @@ 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
@@ -152,30 +85,21 @@ predefined.split(/^/).each_with_index do |line, num|
   case name
   when /\A[A-Z]\w*\z/; const_ids
   when /\A(?!\d)\w+\z/; local_ids
-  when /\A\$(?:\d+|(?!\d)\w+|\W)\z/; global_ids
+  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/; attrset_ids
+  when /\A((?!\d)\w+)=\z/
+    KeywordError.raise("use ID2ATTRSET(#{$1}) instead of ATTRSET #{name}", firstline+num)
   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 7f5422faef..1b5719aa85 100644
--- a/defs/keywords
+++ b/defs/keywords
@@ -1,8 +1,8 @@
 %{
-struct kwtable {int name, id[2], state;};
+struct kwtable {const char *name; int id[2]; enum lex_state_e state;};
 const struct kwtable *rb_reserved_word(const char *, unsigned int);
 #ifndef RIPPER
-static const struct kwtable *reserved_word(/*!ANSI{*/const char *, unsigned int/*}!ANSI*/);
+static const struct kwtable *reserved_word(const char *, unsigned int);
 #define rb_reserved_word(str, len) reserved_word(str, len)
 %}
 
@@ -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|EXPR_FITEM
+alias, {keyword_alias, keyword_alias}, EXPR_FNAME
 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|EXPR_FITEM
+undef, {keyword_undef, keyword_undef}, EXPR_FNAME
 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 b9c490d3a2..3cebe90a8e 100644
--- a/defs/known_errors.def
+++ b/defs/known_errors.def
@@ -143,6 +143,3 @@ EPROGMISMATCH
 EPROGUNAVAIL
 ERPCMISMATCH
 EIPSEC
-EHWPOISON
-ECAPMODE
-ENOTCAPABLE
diff --git a/defs/lex.c.src b/defs/lex.c.src
index 7f5422faef..1b5719aa85 100644
--- a/defs/lex.c.src
+++ b/defs/lex.c.src
@@ -1,8 +1,8 @@
 %{
-struct kwtable {int name, id[2], state;};
+struct kwtable {const char *name; int id[2]; enum lex_state_e state;};
 const struct kwtable *rb_reserved_word(const char *, unsigned int);
 #ifndef RIPPER
-static const struct kwtable *reserved_word(/*!ANSI{*/const char *, unsigned int/*}!ANSI*/);
+static const struct kwtable *reserved_word(const char *, unsigned int);
 #define rb_reserved_word(str, len) reserved_word(str, len)
 %}
 
@@ -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|EXPR_FITEM
+alias, {keyword_alias, keyword_alias}, EXPR_FNAME
 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|EXPR_FITEM
+undef, {keyword_undef, keyword_undef}, EXPR_FNAME
 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_insn_unif.def b/defs/opt_insn_unif.def
index 31ae2eb6a1..1ac613dbea 100644
--- a/defs/opt_insn_unif.def
+++ b/defs/opt_insn_unif.def
@@ -8,10 +8,12 @@ __END__
 putobject putobject
 putobject putstring
 putobject setlocal
+putobject setdynamic
 
 putstring putstring
 putstring putobject
 putstring setlocal
+putstring setdynamic
 
 # putnil end
 
diff --git a/defs/opt_operand.def b/defs/opt_operand.def
index 887e3da49a..ab7103a421 100644
--- a/defs/opt_operand.def
+++ b/defs/opt_operand.def
@@ -1,5 +1,5 @@
 #
-# configuration file for operand union optimization
+# configration file for operand union optimization
 #
 # format:
 #   [insn name] op1, op2 ...
diff --git a/defs/separated_version.mk b/defs/separated_version.mk
deleted file mode 100644
index f086f4b24a..0000000000
--- a/defs/separated_version.mk
+++ /dev/null
@@ -1,38 +0,0 @@
-# ******** FOR DEVELEPERS ONLY ********
-# Separate version.o into a shared library which varies every
-# revisions, in order to make the rest sharable.
-
-include $(firstword $(wildcard GNUmakefile Makefile))
-
-ifneq ($(filter @executable_path/%,$(DLDFLAGS)),)
-RUBY_VERSION_SO = $(subst ruby,ruby_version,$(LIBRUBY_SO))
-RUBY_VERSION_DLDFLAGS := $(patsubst @executable_path/%/$(LIBRUBY_SO),@loader_path/$(RUBY_VERSION_SO),$(DLDFLAGS)) -exported_symbol=Init_version
-else ifneq ($(findstring -soname,$(DLDFLAGS)),)
-RUBY_VERSION_SO = $(subst ruby,ruby_version,$(LIBRUBY_SO))
-RUBY_VERSION_DLDFLAGS := $(subst ruby,ruby_version,$(DLDFLAGS)) -Wl,-rpath-link,'$${ORIGIN}'
-else
-ERROR
-endif
-
-ifneq ($(RUBY_VERSION_SO),)
-
-version.$(OBJEXT): XCFLAGS := $(subst -fvisibility=hidden,,$(XCFLAGS))
-
-MINIOBJS += version.$(OBJEXT)
-DLDOBJS += $(RUBY_VERSION_SO)
-LIBRUBYARG_SHARED := -lruby_version $(LIBRUBYARG_SHARED)
-$(LIBRUBY_SO): COMMONOBJS := $(filter-out version.$(OBJEXT),$(COMMONOBJS))
-$(LIBRUBY_A): COMMONOBJS := $(sort version.$(OBJEXT) $(COMMONOBJS))
-
-$(LIBRUBY_SO): $(RUBY_VERSION_SO)
-
-$(RUBY_VERSION_SO): version.$(OBJEXT)
-	$(ECHO) linking shared-library $@
-	$(LDSHARED) $(RUBY_VERSION_DLDFLAGS) version.$(OBJEXT) $(OUTFLAG)$@
-	-$(Q) $(MINIRUBY) -e 'ARGV.each{|link|' \
-		-e   'File.delete link rescue nil' \
-		-e   'File.symlink "$(RUBY_VERSION_SO)", link' \
-		-e '}' \
-		$(subst ruby,ruby_version,$(LIBRUBY_ALIASES)) || true
-
-endif
diff --git a/dir.c b/dir.c
index 99b9b53bf9..e3a74c18b0 100644
--- a/dir.c
+++ b/dir.c
@@ -11,9 +11,9 @@
 
 **********************************************************************/
 
+#include "ruby/ruby.h"
+#include "ruby/encoding.h"
 #include "internal.h"
-#include "encindex.h"
-#include "ruby/thread.h"
 
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -22,22 +22,6 @@
 #include <unistd.h>
 #endif
 
-#ifndef USE_OPENDIR_AT
-# if defined(HAVE_FDOPENDIR) && defined(HAVE_DIRFD) && \
-    defined(HAVE_OPENAT) && defined(HAVE_FSTATAT)
-#   define USE_OPENDIR_AT 1
-# else
-#   define USE_OPENDIR_AT 0
-# endif
-#endif
-#if USE_OPENDIR_AT
-# include <fcntl.h>
-#endif
-#ifndef AT_FDCWD
-# define AT_FDCWD -1
-#endif
-
-#undef HAVE_DIRENT_NAMLEN
 #if defined HAVE_DIRENT_H && !defined _WIN32
 # include <dirent.h>
 # define NAMLEN(dirent) strlen((dirent)->d_name)
@@ -47,7 +31,6 @@
 #else
 # define dirent direct
 # define NAMLEN(dirent) (dirent)->d_namlen
-# define HAVE_DIRENT_NAMLEN 1
 # if HAVE_SYS_NDIR_H
 #  include <sys/ndir.h>
 # endif
@@ -61,6 +44,10 @@
 #  include "win32/dir.h"
 # endif
 #endif
+#if defined(__native_client__) && defined(NACL_NEWLIB)
+# include "nacl/dirent.h"
+# include "nacl/stat.h"
+#endif
 
 #include <errno.h>
 
@@ -76,8 +63,6 @@ char *strchr(char*,char);
 
 #include "ruby/util.h"
 
-#define vm_initialized rb_cThread
-
 /* define system APIs */
 #ifdef _WIN32
 #undef chdir
@@ -88,69 +73,24 @@ char *strchr(char*,char);
 #define rmdir(p) rb_w32_urmdir(p)
 #undef opendir
 #define opendir(p) rb_w32_uopendir(p)
-#define ruby_getcwd() rb_w32_ugetcwd(NULL, 0)
-#define IS_WIN32 1
-#else
-#define IS_WIN32 0
-#endif
-
-#ifdef HAVE_SYS_ATTR_H
-#include <sys/attr.h>
-#endif
-
-#define USE_NAME_ON_FS_REAL_BASENAME 1	/* platform dependent APIs to
-					 * get real basenames */
-#define USE_NAME_ON_FS_BY_FNMATCH 2	/* select the matching
-					 * basename by fnmatch */
-
-#ifdef HAVE_GETATTRLIST
-# define USE_NAME_ON_FS USE_NAME_ON_FS_REAL_BASENAME
-# define RUP32(size) ((size)+3/4)
-# define SIZEUP32(type) RUP32(sizeof(type))
-#elif defined _WIN32
-# define USE_NAME_ON_FS USE_NAME_ON_FS_REAL_BASENAME
-#elif defined DOSISH
-# define USE_NAME_ON_FS USE_NAME_ON_FS_BY_FNMATCH
-#else
-# define USE_NAME_ON_FS 0
 #endif
 
 #ifdef __APPLE__
-# define NORMALIZE_UTF8PATH 1
+# define HAVE_HFS 1
 #else
-# define NORMALIZE_UTF8PATH 0
+# define HAVE_HFS 0
 #endif
-
-#if NORMALIZE_UTF8PATH
+#if HAVE_HFS
 #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;
-	}
+is_hfs(DIR *dirp)
+{
+    struct statfs buf;
+    if (fstatfs(dirfd(dirp), &buf) == 0) {
+	return buf.f_type == 17; /* HFS on darwin */
     }
-# endif
     return FALSE;
 }
 
@@ -165,30 +105,10 @@ has_nonascii(const char *ptr, size_t 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,
+# define IF_HAVE_HFS(something) something
 #else
-    path_exist,
-    path_directory = IFTODT(S_IFDIR),
-    path_regular   = IFTODT(S_IFREG),
-    path_symlink   = IFTODT(S_IFLNK),
+# define IF_HAVE_HFS(something) /* nothing */
 #endif
-    path_noent = -1,
-    path_unknown = -2
-} rb_pathtype_t;
 
 #define FNM_NOESCAPE	0x01
 #define FNM_PATHNAME	0x02
@@ -200,11 +120,6 @@ typedef enum {
 #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
@@ -281,7 +196,7 @@ bracket(
     return ok == not ? NULL : (char *)p + 1;
 }
 
-/* If FNM_PATHNAME is set, only path element will be matched. (up to '/' or '\0')
+/* If FNM_PATHNAME is set, only path element will be matched. (upto '/' or '\0')
    Otherwise, entire string will be matched.
    End marker itself won't be compared.
    And if function succeeds, *pcur reaches end marker.
@@ -436,7 +351,7 @@ VALUE rb_cDir;
 
 struct dir_data {
     DIR *dir;
-    const VALUE path;
+    VALUE path;
     rb_encoding *enc;
 };
 
@@ -451,25 +366,35 @@ static void
 dir_free(void *ptr)
 {
     struct dir_data *dir = ptr;
-
-    if (dir->dir) closedir(dir->dir);
+    if (dir) {
+	if (dir->dir) closedir(dir->dir);
+    }
     xfree(dir);
 }
 
 static size_t
 dir_memsize(const void *ptr)
 {
-    return sizeof(struct dir_data);
+    return ptr ? sizeof(struct dir_data) : 0;
 }
 
 static const rb_data_type_t dir_data_type = {
     "dir",
     {dir_mark, dir_free, dir_memsize,},
-    0, 0, RUBY_TYPED_WB_PROTECTED | RUBY_TYPED_FREE_IMMEDIATELY
+    NULL, NULL, RUBY_TYPED_FREE_IMMEDIATELY
 };
 
 static VALUE dir_close(VALUE);
 
+#define GlobPathValue(str, safe) \
+    /* can contain null bytes as separators */	\
+    (!RB_TYPE_P((str), T_STRING) ?		\
+     (void)FilePathValue(str) :			\
+     (void)(check_safe_glob((str), (safe)),		\
+      check_glob_encoding(str), (str)))
+#define check_safe_glob(str, safe) ((safe) ? rb_check_safe_obj(str) : (void)0)
+#define check_glob_encoding(str) rb_enc_check((str), rb_enc_from_encoding(rb_usascii_encoding()))
+
 static VALUE
 dir_s_alloc(VALUE klass)
 {
@@ -477,34 +402,12 @@ dir_s_alloc(VALUE klass)
     VALUE obj = TypedData_Make_Struct(klass, struct dir_data, &dir_data_type, dirp);
 
     dirp->dir = NULL;
-    RB_OBJ_WRITE(obj, &dirp->path, Qnil);
+    dirp->path = Qnil;
     dirp->enc = NULL;
 
     return obj;
 }
 
-static void *
-nogvl_opendir(void *ptr)
-{
-    const char *path = ptr;
-
-    return (void *)opendir(path);
-}
-
-static DIR *
-opendir_without_gvl(const char *path)
-{
-    if (vm_initialized) {
-	union { const void *in; void *out; } u;
-
-	u.in = path;
-
-	return rb_thread_call_without_gvl(nogvl_opendir, u.out, RUBY_UBF_IO, 0);
-    }
-    else
-	return opendir(path);
-}
-
 /*
  *  call-seq:
  *     Dir.new( string ) -> aDir
@@ -512,7 +415,7 @@ opendir_without_gvl(const char *path)
  *
  *  Returns a new directory object for the named directory.
  *
- *  The optional <i>encoding</i> keyword argument specifies the encoding of the directory.
+ *  The optional <i>enc</i> argument specifies the encoding of the directory.
  *  If not specified, the filesystem encoding is used.
  */
 static VALUE
@@ -521,26 +424,23 @@ dir_initialize(int argc, VALUE *argv, VALUE dir)
     struct dir_data *dp;
     rb_encoding  *fsenc;
     VALUE dirname, opt, orig;
-    static ID keyword_ids[1];
-    const char *path;
+    static VALUE sym_enc;
 
-    if (!keyword_ids[0]) {
-	keyword_ids[0] = rb_id_encoding();
+    if (!sym_enc) {
+	sym_enc = ID2SYM(rb_intern("encoding"));
     }
-
     fsenc = rb_filesystem_encoding();
 
     rb_scan_args(argc, argv, "1:", &dirname, &opt);
 
     if (!NIL_P(opt)) {
-	VALUE enc;
-	rb_get_kwargs(opt, keyword_ids, 0, 1, &enc);
-	if (enc != Qundef && !NIL_P(enc)) {
+	VALUE enc = rb_hash_aref(opt, sym_enc);
+	if (!NIL_P(enc)) {
 	    fsenc = rb_to_encoding(enc);
 	}
     }
 
-    FilePathValue(dirname);
+    GlobPathValue(dirname, FALSE);
     orig = rb_str_dup_frozen(dirname);
     dirname = rb_str_encode_ospath(dirname);
     dirname = rb_str_dup_frozen(dirname);
@@ -548,30 +448,19 @@ dir_initialize(int argc, VALUE *argv, VALUE dir)
     TypedData_Get_Struct(dir, struct dir_data, &dir_data_type, dp);
     if (dp->dir) closedir(dp->dir);
     dp->dir = NULL;
-    RB_OBJ_WRITE(dir, &dp->path, Qnil);
+    dp->path = Qnil;
     dp->enc = fsenc;
-    path = RSTRING_PTR(dirname);
-    dp->dir = opendir_without_gvl(path);
+    dp->dir = opendir(RSTRING_PTR(dirname));
     if (dp->dir == NULL) {
-	int e = errno;
-	if (rb_gc_for_fd(e)) {
-	    dp->dir = opendir_without_gvl(path);
+	if (errno == EMFILE || errno == ENFILE) {
+	    rb_gc();
+	    dp->dir = opendir(RSTRING_PTR(dirname));
 	}
-#ifdef HAVE_GETATTRLIST
-	else if (e == 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_without_gvl(path);
-	    }
-	}
-#endif
 	if (dp->dir == NULL) {
-	    RB_GC_GUARD(dirname);
-	    rb_syserr_fail_path(e, orig);
+	    rb_sys_fail_path(orig);
 	}
     }
-    RB_OBJ_WRITE(dir, &dp->path, orig);
+    dp->path = orig;
 
     return dir;
 }
@@ -583,7 +472,7 @@ dir_initialize(int argc, VALUE *argv, VALUE dir)
  *     Dir.open( string ) {| aDir | block } -> anObject
  *     Dir.open( string, encoding: enc ) {| aDir | block } -> anObject
  *
- *  The optional <i>encoding</i> keyword argument specifies the encoding of the directory.
+ *  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
@@ -613,16 +502,11 @@ dir_closed(void)
 }
 
 static struct dir_data *
-dir_get(VALUE dir)
-{
-    rb_check_frozen(dir);
-    return rb_check_typeddata(dir, &dir_data_type);
-}
-
-static struct dir_data *
 dir_check(VALUE dir)
 {
-    struct dir_data *dirp = dir_get(dir);
+    struct dir_data *dirp;
+    rb_check_frozen(dir);
+    dirp = rb_check_typeddata(dir, &dir_data_type);
     if (!dirp->dir) dir_closed();
     return dirp;
 }
@@ -650,52 +534,8 @@ dir_inspect(VALUE dir)
 	rb_str_cat2(str, ">");
 	return str;
     }
-    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);
+    return rb_funcall(dir, rb_intern("to_s"), 0, 0);
 }
-#else
-#define dir_fileno rb_f_notimplement
-#endif
 
 /*
  *  call-seq:
@@ -718,46 +558,11 @@ dir_path(VALUE dir)
 }
 
 #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 READDIR(dir, enc) readdir((dir))
 #endif
 
-/* safe to use without GVL */
-static int
-to_be_skipped(const struct dirent *dp)
-{
-    const char *name = dp->d_name;
-    if (name[0] != '.') return FALSE;
-#ifdef HAVE_DIRENT_NAMLEN
-    switch (NAMLEN(dp)) {
-      case 2:
-	if (name[1] != '.') return FALSE;
-      case 1:
-	return TRUE;
-      default:
-	break;
-    }
-#else
-    if (!name[1]) return TRUE;
-    if (name[1] != '.') return FALSE;
-    if (!name[2]) return TRUE;
-#endif
-    return FALSE;
-}
-
 /*
  *  call-seq:
  *     dir.read -> string or nil
@@ -782,20 +587,11 @@ dir_read(VALUE dir)
 	return rb_external_str_new_with_enc(dp->d_name, NAMLEN(dp), dirp->enc);
     }
     else {
-	int e = errno;
-	if (e != 0) rb_syserr_fail(e, 0);
+	if (errno != 0) rb_sys_fail(0);
 	return Qnil;		/* end of stream */
     }
 }
 
-static VALUE dir_each_entry(VALUE, VALUE (*)(VALUE, VALUE), VALUE, int);
-
-static VALUE
-dir_yield(VALUE arg, VALUE path)
-{
-    return rb_yield(path);
-}
-
 /*
  *  call-seq:
  *     dir.each { |filename| block }  -> dir
@@ -819,38 +615,27 @@ dir_yield(VALUE arg, VALUE path)
 static VALUE
 dir_each(VALUE dir)
 {
-    RETURN_ENUMERATOR(dir, 0, 0);
-    return dir_each_entry(dir, dir_yield, Qnil, FALSE);
-}
-
-static VALUE
-dir_each_entry(VALUE dir, VALUE (*each)(VALUE, VALUE), VALUE arg, int children_only)
-{
     struct dir_data *dirp;
     struct dirent *dp;
-    IF_NORMALIZE_UTF8PATH(int norm_p);
+    IF_HAVE_HFS(int hfs_p);
 
+    RETURN_ENUMERATOR(dir, 0, 0);
     GetDIR(dir, dirp);
     rewinddir(dirp->dir);
-    IF_NORMALIZE_UTF8PATH(norm_p = need_normalization(dirp->dir, RSTRING_PTR(dirp->path)));
+    IF_HAVE_HFS(hfs_p = is_hfs(dirp->dir));
     while ((dp = READDIR(dirp->dir, dirp->enc)) != NULL) {
 	const char *name = dp->d_name;
 	size_t namlen = NAMLEN(dp);
 	VALUE path;
-
-	if (children_only && name[0] == '.') {
-	    if (namlen == 1) continue; /* current directory */
-	    if (namlen == 2 && name[1] == '.') continue; /* parent directory */
-	}
-#if NORMALIZE_UTF8PATH
-	if (norm_p && has_nonascii(name, namlen) &&
+#if HAVE_HFS
+	if (hfs_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);
-	(*each)(arg, path);
+	rb_yield(path);
 	if (dirp->dir == NULL) dir_closed();
     }
     return dir;
@@ -963,8 +748,8 @@ dir_rewind(VALUE dir)
  *  call-seq:
  *     dir.close -> nil
  *
- *  Closes the directory stream.
- *  Calling this method on closed Dir object is ignored since Ruby 2.3.
+ *  Closes the directory stream. Any further attempts to access
+ *  <em>dir</em> will raise an <code>IOError</code>.
  *
  *     d = Dir.new("testdir")
  *     d.close   #=> nil
@@ -974,22 +759,13 @@ dir_close(VALUE dir)
 {
     struct dir_data *dirp;
 
-    dirp = dir_get(dir);
-    if (!dirp->dir) return Qnil;
+    GetDIR(dir, dirp);
     closedir(dirp->dir);
     dirp->dir = NULL;
 
     return Qnil;
 }
 
-static void *
-nogvl_chdir(void *ptr)
-{
-    const char *path = ptr;
-
-    return (void *)(VALUE)chdir(path);
-}
-
 static void
 dir_chdir(VALUE path)
 {
@@ -1072,6 +848,7 @@ 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);
@@ -1098,62 +875,24 @@ dir_s_chdir(int argc, VALUE *argv, VALUE obj)
 	args.done = FALSE;
 	return rb_ensure(chdir_yield, (VALUE)&args, chdir_restore, (VALUE)&args);
     }
-    else {
-	char *p = RSTRING_PTR(path);
-	int r = (int)(VALUE)rb_thread_call_without_gvl(nogvl_chdir, p,
-							RUBY_UBF_IO, 0);
-	if (r < 0)
-	    rb_sys_fail_path(path);
-    }
+    dir_chdir(path);
 
     return INT2FIX(0);
 }
 
-#ifndef _WIN32
 VALUE
-rb_dir_getwd_ospath(void)
+rb_dir_getwd(void)
 {
     char *path;
     VALUE cwd;
-    VALUE path_guard;
 
-#undef RUBY_UNTYPED_DATA_WARNING
-#define RUBY_UNTYPED_DATA_WARNING 0
-    path_guard = Data_Wrap_Struct((VALUE)0, NULL, RUBY_DEFAULT_FREE, NULL);
-    path = ruby_getcwd();
-    DATA_PTR(path_guard) = path;
-#ifdef __APPLE__
-    cwd = rb_str_normalize_ospath(path, strlen(path));
-    OBJ_TAINT(cwd);
-#else
+    path = my_getcwd();
     cwd = rb_tainted_str_new2(path);
-#endif
-    DATA_PTR(path_guard) = 0;
+    rb_enc_associate(cwd, rb_filesystem_encoding());
 
     xfree(path);
     return cwd;
 }
-#endif
-
-VALUE
-rb_dir_getwd(void)
-{
-    rb_encoding *fs = rb_filesystem_encoding();
-    int fsenc = rb_enc_to_index(fs);
-    VALUE cwd = rb_dir_getwd_ospath();
-
-    switch (fsenc) {
-      case ENCINDEX_US_ASCII:
-	fsenc = ENCINDEX_ASCII;
-      case ENCINDEX_ASCII:
-	break;
-#if defined _WIN32 || defined __APPLE__
-      default:
-	return rb_str_conv_enc(cwd, NULL, fs);
-#endif
-    }
-    return rb_enc_associate_index(cwd, fsenc);
-}
 
 /*
  *  call-seq:
@@ -1165,7 +904,6 @@ rb_dir_getwd(void)
  *
  *     Dir.chdir("/tmp")   #=> 0
  *     Dir.getwd           #=> "/tmp"
- *     Dir.pwd             #=> "/tmp"
  */
 static VALUE
 dir_s_getwd(VALUE dir)
@@ -1173,14 +911,15 @@ dir_s_getwd(VALUE dir)
     return rb_dir_getwd();
 }
 
-static VALUE
-check_dirname(VALUE dir)
+static void
+check_dirname(volatile 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);
@@ -1188,9 +927,8 @@ check_dirname(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);
     }
-    return rb_str_encode_ospath(d);
+    *dir = rb_str_encode_ospath(d);
 }
 
 #if defined(HAVE_CHROOT)
@@ -1206,7 +944,7 @@ check_dirname(VALUE dir)
 static VALUE
 dir_s_chroot(VALUE dir, VALUE path)
 {
-    path = check_dirname(path);
+    check_dirname(&path);
     if (chroot(RSTRING_PTR(path)) == -1)
 	rb_sys_fail_path(path);
 
@@ -1216,19 +954,6 @@ dir_s_chroot(VALUE dir, VALUE path)
 #define dir_s_chroot rb_f_notimplement
 #endif
 
-struct mkdir_arg {
-    const char *path;
-    mode_t mode;
-};
-
-static void *
-nogvl_mkdir(void *ptr)
-{
-    struct mkdir_arg *m = ptr;
-
-    return (void *)(VALUE)mkdir(m->path, m->mode);
-}
-
 /*
  *  call-seq:
  *     Dir.mkdir( string [, integer] ) -> 0
@@ -1247,34 +972,23 @@ nogvl_mkdir(void *ptr)
 static VALUE
 dir_s_mkdir(int argc, VALUE *argv, VALUE obj)
 {
-    struct mkdir_arg m;
     VALUE path, vmode;
-    int r;
+    int mode;
 
     if (rb_scan_args(argc, argv, "11", &path, &vmode) == 2) {
-	m.mode = NUM2MODET(vmode);
+	mode = NUM2INT(vmode);
     }
     else {
-	m.mode = 0777;
+	mode = 0777;
     }
 
-    path = check_dirname(path);
-    m.path = RSTRING_PTR(path);
-    r = (int)(VALUE)rb_thread_call_without_gvl(nogvl_mkdir, &m, RUBY_UBF_IO, 0);
-    if (r < 0)
+    check_dirname(&path);
+    if (mkdir(RSTRING_PTR(path), mode) == -1)
 	rb_sys_fail_path(path);
 
     return INT2FIX(0);
 }
 
-static void *
-nogvl_rmdir(void *ptr)
-{
-    const char *path = ptr;
-
-    return (void *)(VALUE)rmdir(path);
-}
-
 /*
  *  call-seq:
  *     Dir.delete( string ) -> 0
@@ -1287,61 +1001,26 @@ nogvl_rmdir(void *ptr)
 static VALUE
 dir_s_rmdir(VALUE obj, VALUE dir)
 {
-    const char *p;
-    int r;
-
-    dir = check_dirname(dir);
-    p = RSTRING_PTR(dir);
-    r = (int)(VALUE)rb_thread_call_without_gvl(nogvl_rmdir, (void *)p, RUBY_UBF_IO, 0);
-    if (r < 0)
+    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)
 {
-    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
+    rb_sys_warning("%s:%s", strerror(errno), (const char *)mesg);
     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, enc) \
-    ((flags & GLOB_VERBOSE) ? sys_enc_warning_in(RUBY_FUNCTION_NAME_STRING, (val), (enc)) :(void)0)
+#define sys_warning(val) \
+    (void)((flags & GLOB_VERBOSE) && rb_protect(sys_warning_1, (VALUE)(val), 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))
 
@@ -1349,53 +1028,33 @@ sys_enc_warning_in(const char *func, const char *mesg, rb_encoding *enc)
  * ENOTDIR can be returned by stat(2) if a non-leaf element of the path
  * is not a directory.
  */
-ALWAYS_INLINE(static int to_be_ignored(int e));
-static inline int
-to_be_ignored(int e)
-{
-    return e == ENOENT || e == ENOTDIR;
-}
+#define to_be_ignored(e) ((e) == ENOENT || (e) == ENOTDIR)
 
 #ifdef _WIN32
-#define STAT(p, s)	rb_w32_ustati128((p), (s))
-#undef lstat
-#define lstat(p, s)	rb_w32_ulstati128((p), (s))
+#define STAT(p, s)	rb_w32_ustati64((p), (s))
 #else
 #define STAT(p, s)	stat((p), (s))
 #endif
 
-typedef int ruby_glob_errfunc(const char*, VALUE, const void*, int);
-typedef struct {
-    ruby_glob_func *match;
-    ruby_glob_errfunc *error;
-} ruby_glob_funcs_t;
-
 /* System call with warning */
 static int
-do_stat(int fd, const char *path, struct stat *pst, int flags, rb_encoding *enc)
+do_stat(const char *path, struct stat *pst, int flags)
+
 {
-#if USE_OPENDIR_AT
-    int ret = fstatat(fd, path, pst, 0);
-#else
     int ret = STAT(path, pst);
-#endif
     if (ret < 0 && !to_be_ignored(errno))
-	sys_warning(path, enc);
+	sys_warning(path);
 
     return ret;
 }
 
-#if defined HAVE_LSTAT || defined lstat || USE_OPENDIR_AT
+#if defined HAVE_LSTAT || defined lstat
 static int
-do_lstat(int fd, const char *path, struct stat *pst, int flags, rb_encoding *enc)
+do_lstat(const char *path, struct stat *pst, int flags)
 {
-#if USE_OPENDIR_AT
-    int ret = fstatat(fd, path, pst, AT_SYMLINK_NOFOLLOW);
-#else
     int ret = lstat(path, pst);
-#endif
     if (ret < 0 && !to_be_ignored(errno))
-	sys_warning(path, enc);
+	sys_warning(path);
 
     return ret;
 }
@@ -1403,125 +1062,33 @@ do_lstat(int fd, const char *path, struct stat *pst, int flags, rb_encoding *enc
 #define do_lstat do_stat
 #endif
 
-struct opendir_at_arg {
-    int basefd;
-    const char *path;
-};
-
-static void *
-with_gvl_gc_for_fd(void *ptr)
-{
-    int *e = ptr;
-
-    return (void *)(rb_gc_for_fd(*e) ? Qtrue : Qfalse);
-}
-
-static int
-gc_for_fd_with_gvl(int e)
-{
-    if (vm_initialized)
-	return (int)(VALUE)rb_thread_call_with_gvl(with_gvl_gc_for_fd, &e);
-    else
-	return rb_gc_for_fd(e) ? Qtrue : Qfalse;
-}
-
-static void *
-nogvl_opendir_at(void *ptr)
-{
-    const struct opendir_at_arg *oaa = ptr;
-    DIR *dirp;
-
-#if USE_OPENDIR_AT
-    const int opendir_flags = (O_RDONLY|O_CLOEXEC|
-#  ifdef O_DIRECTORY
-			       O_DIRECTORY|
-#  endif /* O_DIRECTORY */
-			       0);
-    int fd = openat(oaa->basefd, oaa->path, opendir_flags);
-
-    dirp = fd >= 0 ? fdopendir(fd) : 0;
-    if (!dirp) {
-	int e = errno;
-
-	switch (gc_for_fd_with_gvl(e)) {
-	  default:
-	    if (fd < 0) fd = openat(oaa->basefd, oaa->path, opendir_flags);
-	    if (fd >= 0) dirp = fdopendir(fd);
-	    if (dirp) return dirp;
-
-	    e = errno;
-	    /* fallthrough*/
-	  case 0:
-	    if (fd >= 0) close(fd);
-	    errno = e;
-	}
-    }
-#else  /* !USE_OPENDIR_AT */
-    dirp = opendir(oaa->path);
-    if (!dirp && gc_for_fd_with_gvl(errno))
-	dirp = opendir(oaa->path);
-#endif /* !USE_OPENDIR_AT */
-
-    return dirp;
-}
-
 static DIR *
-opendir_at(int basefd, const char *path)
-{
-    struct opendir_at_arg oaa;
-
-    oaa.basefd = basefd;
-    oaa.path = path;
-
-    if (vm_initialized)
-	return rb_thread_call_without_gvl(nogvl_opendir_at, &oaa, RUBY_UBF_IO, 0);
-    else
-	return nogvl_opendir_at(&oaa);
-}
-
-static DIR *
-do_opendir(const int basefd, const char *path, int flags, rb_encoding *enc,
-	   ruby_glob_errfunc *errfunc, VALUE arg, int *status)
+do_opendir(const char *path, int flags, rb_encoding *enc)
 {
     DIR *dirp;
 #ifdef _WIN32
-    VALUE tmp = 0;
-    if (!fundamental_encoding_p(enc)) {
+    volatile VALUE tmp;
+    if (enc != rb_usascii_encoding() &&
+	enc != rb_ascii8bit_encoding() &&
+	enc != rb_utf8_encoding()) {
 	tmp = rb_enc_str_new(path, strlen(path), enc);
 	tmp = rb_str_encode_ospath(tmp);
 	path = RSTRING_PTR(tmp);
     }
 #endif
-    dirp = opendir_at(basefd, path);
-    if (!dirp) {
-	int e = errno;
-
-	*status = 0;
-	if (!to_be_ignored(e)) {
-	    if (errfunc) {
-		*status = (*errfunc)(path, arg, enc, e);
-	    }
-	    else {
-		sys_warning(path, enc);
-	    }
-	}
-    }
-#ifdef _WIN32
-    if (tmp) rb_str_resize(tmp, 0); /* GC guard */
-#endif
+    dirp = opendir(path);
+    if (dirp == NULL && !to_be_ignored(errno))
+	sys_warning(path);
 
     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 enum glob_pattern_type
+static int
 has_magic(const char *p, const char *pend, int flags, rb_encoding *enc)
 {
     const int escape = !(flags & FNM_NOESCAPE);
-    int hasalpha = 0;
+    const int nocase = flags & FNM_CASEFOLD;
 
     register char c;
 
@@ -1530,32 +1097,22 @@ has_magic(const char *p, const char *pend, int flags, rb_encoding *enc)
 	  case '*':
 	  case '?':
 	  case '[':
-	    return MAGICAL;
+	    return 1;
 
 	  case '\\':
-	    if (escape && p++ >= pend)
-		continue;
-	    break;
-
-#ifdef _WIN32
-	  case '.':
-	    break;
+	    if (escape && !(c = *p++))
+		return 0;
+	    continue;
 
-	  case '~':
-	    hasalpha = 1;
-	    break;
-#endif
 	  default:
-	    if (IS_WIN32 || ISALPHA(c)) {
-		hasalpha = 1;
-	    }
-	    break;
+	    if (!FNM_SYSCASE && ISALPHA(c) && nocase)
+		return 1;
 	}
 
 	p = Next(p-1, pend, enc);
     }
 
-    return hasalpha ? ALPHA : PLAIN;
+    return 0;
 }
 
 /* Find separator in globbing pattern. */
@@ -1619,6 +1176,9 @@ 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;
@@ -1637,7 +1197,7 @@ 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 + 2 < e && p[0] == '*' && p[1] == '*' && p[2] == '/') {
+	if (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;
@@ -1647,13 +1207,12 @@ glob_make_pattern(const char *p, const char *e, int flags, rb_encoding *enc)
 	}
 	else {
 	    const char *m = find_dirsep(p, e, 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;
+	    int magic = has_magic(p, m, flags, enc);
 	    char *buf;
 
-	    if (!(FNM_SYSCASE || magic > non_magic) && !recursive && *m) {
+	    if (!magic && !recursive && *m) {
 		const char *m2;
-		while (has_magic(m+1, m2 = find_dirsep(m+1, e, flags, enc), flags, enc) <= non_magic &&
+		while (!has_magic(m+1, m2 = find_dirsep(m+1, e, flags, enc), flags, enc) &&
 		       *m2) {
 		    m = m2;
 		}
@@ -1665,7 +1224,7 @@ 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 ? MAGICAL : magic > non_magic ? magic : PLAIN;
+	    tmp->type = magic ? MAGICAL : PLAIN;
 	    tmp->str = buf;
 	    if (*m) {
 		dirsep = 1;
@@ -1708,7 +1267,7 @@ glob_free_pattern(struct glob_pattern *list)
 }
 
 static char *
-join_path(const char *path, size_t len, int dirsep, const char *name, size_t namlen)
+join_path(const char *path, long len, int dirsep, const char *name, size_t namlen)
 {
     char *buf = GLOB_ALLOC_N(char, len+namlen+(dirsep?1:0)+1);
 
@@ -1722,165 +1281,7 @@ join_path(const char *path, size_t len, int dirsep, const char *name, size_t nam
     return buf;
 }
 
-#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 == USE_NAME_ON_FS_REAL_BASENAME
-# error not implemented
-#endif
+enum answer {UNKNOWN = -1, NO, YES};
 
 #ifndef S_ISDIR
 #   define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
@@ -1897,102 +1298,31 @@ replace_real_basename(char *path, long base, rb_encoding *enc, int norm_p, int f
 struct glob_args {
     void (*func)(const char *, VALUE, void *);
     const char *path;
-    const char *base;
-    size_t baselen;
     VALUE value;
     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;
 
-    glob_call_func(args->func, args->path, args->value, args->enc);
+    (*args->func)(args->path, args->value, args->enc);
     return Qnil;
 }
 
-struct glob_error_args {
-    const char *path;
-    rb_encoding *enc;
-    int error;
-};
-
-static VALUE
-glob_func_warning(VALUE val)
-{
-    struct glob_error_args *arg = (struct glob_error_args *)val;
-    rb_syserr_enc_warning(arg->error, arg->enc, "%s", arg->path);
-    return Qnil;
-}
-
-#if 0
-static int
-rb_glob_warning(const char *path, VALUE a, const void *enc, int error)
-{
-    int status;
-    struct glob_error_args args;
-
-    args.path = path;
-    args.enc = enc;
-    args.error = error;
-    rb_protect(glob_func_warning, (VALUE)&args, &status);
-    return status;
-}
-#endif
-
-static VALUE
-glob_func_error(VALUE val)
-{
-    struct glob_error_args *arg = (struct glob_error_args *)val;
-    VALUE path = rb_enc_str_new_cstr(arg->path, arg->enc);
-    rb_syserr_fail_str(arg->error, path);
-    return Qnil;
-}
-
-static int
-rb_glob_error(const char *path, VALUE a, const void *enc, int error)
-{
-    int status;
-    struct glob_error_args args;
-    VALUE (*errfunc)(VALUE) = glob_func_error;
-
-    if (error == EACCES) {
-	errfunc = glob_func_warning;
-    }
-    args.path = path;
-    args.enc = enc;
-    args.error = error;
-    rb_protect(errfunc, (VALUE)&args, &status);
-    return status;
-}
-
-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;
-}
+#define glob_call_func(func, path, arg, enc) (*(func))((path), (arg), (enc))
 
 static int
 glob_helper(
-    int fd,
     const char *path,
-    size_t baselen,
-    size_t namelen,
     int dirsep, /* '/' should be placed before appending child entry's name to 'path'. */
-    rb_pathtype_t pathtype, /* type of 'path' */
+    enum answer exist, /* Does 'path' indicate an existing entry? */
+    enum answer isdir, /* Does 'path' indicate a directory or a symlink to a directory? */
     struct glob_pattern **beg,
     struct glob_pattern **end,
     int flags,
-    const ruby_glob_funcs_t *funcs,
+    ruby_glob_func *func,
     VALUE arg,
     rb_encoding *enc)
 {
@@ -2001,10 +1331,7 @@ glob_helper(
     struct glob_pattern **cur, **new_beg, **new_end;
     int plain = 0, magical = 0, recursive = 0, match_all = 0, match_dir = 0;
     int escape = !(flags & FNM_NOESCAPE);
-    size_t pathlen = baselen + namelen;
-    const char *base = path;
-
-    if (fd != AT_FDCWD && *(base += baselen) == '/') base++;
+    long pathlen;
 
     for (cur = beg; cur < end; ++cur) {
 	struct glob_pattern *p = *cur;
@@ -2016,15 +1343,8 @@ glob_helper(
 	  case PLAIN:
 	    plain = 1;
 	    break;
-	  case ALPHA:
-#if USE_NAME_ON_FS == USE_NAME_ON_FS_REAL_BASENAME
-	    plain = 1;
-#else
-	    magical = 1;
-#endif
-	    break;
 	  case MAGICAL:
-	    magical = 2;
+	    magical = 1;
 	    break;
 	  case MATCH_ALL:
 	    match_all = 1;
@@ -2037,131 +1357,98 @@ glob_helper(
 	}
     }
 
-    if (*base) {
-	if (match_all && pathtype == path_unknown) {
-	    if (do_lstat(fd, base, &st, flags, enc) == 0) {
-		pathtype = IFTODT(st.st_mode);
+    pathlen = strlen(path);
+    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;
 	    }
 	    else {
-		pathtype = path_noent;
+		exist = NO;
+		isdir = NO;
 	    }
 	}
-	if (match_dir && (pathtype == path_unknown || pathtype == path_symlink)) {
-	    if (do_stat(fd, base, &st, flags, enc) == 0) {
-		pathtype = IFTODT(st.st_mode);
+	if (match_dir && isdir == UNKNOWN) {
+	    if (do_stat(path, &st, flags) == 0) {
+		exist = YES;
+		isdir = S_ISDIR(st.st_mode) ? YES : NO;
 	    }
 	    else {
-		pathtype = path_noent;
+		exist = NO;
+		isdir = NO;
 	    }
 	}
-	if (match_all && pathtype > path_noent) {
-	    const char *subpath = path + baselen + (baselen && path[baselen] == '/');
-	    status = glob_call_func(funcs->match, subpath, arg, enc);
+	if (match_all && exist == YES) {
+	    status = glob_call_func(func, path, arg, enc);
 	    if (status) return status;
 	}
-	if (match_dir && pathtype == path_directory) {
-	    const char *subpath = path + baselen + (baselen && path[baselen] == '/');
-	    char *tmp = join_path(subpath, namelen, dirsep, "", 0);
+	if (match_dir && isdir == YES) {
+	    char *tmp = join_path(path, pathlen, dirsep, "", 0);
 	    if (!tmp) return -1;
-	    status = glob_call_func(funcs->match, tmp + (baselen ? dirsep : 0), arg, enc);
+	    status = glob_call_func(func, tmp, arg, enc);
 	    GLOB_FREE(tmp);
 	    if (status) return status;
 	}
     }
 
-    if (pathtype == path_noent) return 0;
+    if (exist == NO || isdir == NO) return 0;
 
     if (magical || recursive) {
 	struct dirent *dp;
 	DIR *dirp;
-# if USE_NAME_ON_FS == USE_NAME_ON_FS_BY_FNMATCH
-	char *plainname = 0;
-# endif
-	IF_NORMALIZE_UTF8PATH(int norm_p);
-# if USE_NAME_ON_FS == USE_NAME_ON_FS_BY_FNMATCH
-	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(fd, plainname, flags, enc, funcs->error, arg, &status);
-	    GLOB_FREE(plainname);
-	}
-	else
-# else
-	    ;
-# endif
-	dirp = do_opendir(fd, *base ? base : ".", flags, enc, funcs->error, arg, &status);
-	if (dirp == NULL) {
-# if FNM_SYSCASE || NORMALIZE_UTF8PATH
-	    if ((magical < 2) && !recursive && (errno == EACCES)) {
-		/* no read permission, fallback */
-		goto literally;
-	    }
-# endif
-	    return status;
-	}
-	IF_NORMALIZE_UTF8PATH(norm_p = need_normalization(dirp, *base ? base : "."));
+	IF_HAVE_HFS(int hfs_p);
+	dirp = do_opendir(*path ? path : ".", flags, enc);
+	if (dirp == NULL) return 0;
+	IF_HAVE_HFS(hfs_p = is_hfs(dirp));
 
-# 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;
-	    rb_pathtype_t new_pathtype = path_unknown;
+	    enum answer new_isdir = UNKNOWN;
 	    const char *name;
 	    size_t namlen;
 	    int dotfile = 0;
-	    IF_NORMALIZE_UTF8PATH(VALUE utf8str = Qnil);
+	    IF_HAVE_HFS(VALUE utf8str = Qnil);
 
-	    name = dp->d_name;
-	    namlen = NAMLEN(dp);
-	    if (recursive && name[0] == '.') {
+	    if (recursive && dp->d_name[0] == '.') {
 		++dotfile;
-		if (namlen == 1) {
+		if (!dp->d_name[1]) {
 		    /* unless DOTMATCH, skip current directories not to recurse infinitely */
 		    if (!(flags & FNM_DOTMATCH)) continue;
 		    ++dotfile;
-		    new_pathtype = path_directory; /* force to skip stat/lstat */
 		}
-		else if (namlen == 2 && name[1] == '.') {
+		else if (dp->d_name[1] == '.' && !dp->d_name[2]) {
 		    /* always skip parent directories not to recurse infinitely */
 		    continue;
 		}
 	    }
 
-# if NORMALIZE_UTF8PATH
-	    if (norm_p && has_nonascii(name, namlen)) {
+	    name = dp->d_name;
+	    namlen = NAMLEN(dp);
+# if HAVE_HFS
+	    if (hfs_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_HAVE_HFS(if (!NIL_P(utf8str)) rb_str_resize(utf8str, 0));
 	    if (!buf) {
 		status = -1;
 		break;
 	    }
 	    name = buf + pathlen + (dirsep != 0);
-#ifdef DT_UNKNOWN
-	    if (dp->d_type != DT_UNKNOWN) {
-		/* Got it. We need no more lstat. */
-		new_pathtype = dp->d_type;
-	    }
-#endif
-	    if (recursive && dotfile < ((flags & FNM_DOTMATCH) ? 2 : 1) &&
-		new_pathtype == path_unknown) {
+	    if (recursive && dotfile < ((flags & FNM_DOTMATCH) ? 2 : 1)) {
 		/* RECURSIVE never match dot files unless FNM_DOTMATCH is set */
-		if (do_lstat(fd, buf, &st, flags, enc) == 0)
-		    new_pathtype = IFTODT(st.st_mode);
+#ifndef _WIN32
+		if (do_lstat(buf, &st, flags) == 0)
+		    new_isdir = S_ISDIR(st.st_mode) ? YES : S_ISLNK(st.st_mode) ? UNKNOWN : NO;
 		else
-		    new_pathtype = path_noent;
+		    new_isdir = NO;
+#else
+		new_isdir = dp->d_isdir ? (!dp->d_isrep ? YES : UNKNOWN) : NO;
+#endif
 	    }
 
 	    new_beg = new_end = GLOB_ALLOC_N(struct glob_pattern *, (end - beg) * 2);
@@ -2174,33 +1461,18 @@ glob_helper(
 	    for (cur = beg; cur < end; ++cur) {
 		struct glob_pattern *p = *cur;
 		if (p->type == RECURSIVE) {
-		    if (new_pathtype == path_directory || /* not symlink but real directory */
-			new_pathtype == path_exist) {
-			if (dotfile < ((flags & FNM_DOTMATCH) ? 2 : 1))
-			    *new_end++ = p; /* append recursive pattern */
-		    }
+		    if (new_isdir == YES) /* not symlink but real directory */
+			*new_end++ = p; /* append recursive pattern */
 		    p = p->next; /* 0 times recursion */
 		}
-		switch (p->type) {
-		  case ALPHA:
-# if USE_NAME_ON_FS == USE_NAME_ON_FS_BY_FNMATCH
-		    if (plainname) {
-			*new_end++ = p->next;
-			break;
-		    }
-# endif
-		  case PLAIN:
-		  case MAGICAL:
-		    if (dirent_match(p->str, enc, name, dp, flags))
+		if (p->type == PLAIN || p->type == MAGICAL) {
+		    if (fnmatch(p->str, enc, name, flags) == 0)
 			*new_end++ = p->next;
-		  default:
-		    break;
 		}
 	    }
 
-	    status = glob_helper(fd, buf, baselen, name - buf - baselen + namlen, 1,
-				 new_pathtype, new_beg, new_end,
-				 flags, funcs, arg, enc);
+	    status = glob_helper(buf, 1, YES, new_isdir, new_beg, new_end,
+				 flags, func, arg, enc);
 	    GLOB_FREE(buf);
 	    GLOB_FREE(new_beg);
 	    if (status) break;
@@ -2211,17 +1483,13 @@ 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 <= ALPHA ? *cur : 0;
+	    *copy_end++ = (*cur)->type == PLAIN ? *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;
@@ -2255,18 +1523,8 @@ glob_helper(
 		    status = -1;
 		    break;
 		}
-#if USE_NAME_ON_FS == USE_NAME_ON_FS_REAL_BASENAME
-		if ((*cur)->type == ALPHA) {
-		    buf = replace_real_basename(buf, pathlen + (dirsep != 0), enc,
-						IF_NORMALIZE_UTF8PATH(1)+0,
-						flags, &new_pathtype);
-		    if (!buf) break;
-		}
-#endif
-		status = glob_helper(fd, buf, baselen,
-				     namelen + strlen(buf + pathlen), 1,
-				     new_pathtype, new_beg, new_end,
-				     flags, funcs, arg, enc);
+		status = glob_helper(buf, 1, UNKNOWN, UNKNOWN, new_beg,
+				     new_end, flags, func, arg, enc);
 		GLOB_FREE(buf);
 		GLOB_FREE(new_beg);
 		if (status) break;
@@ -2280,15 +1538,13 @@ glob_helper(
 }
 
 static int
-ruby_glob0(const char *path, int fd, const char *base, int flags,
-	   const ruby_glob_funcs_t *funcs, VALUE arg,
-	   rb_encoding *enc)
+ruby_glob0(const char *path, int flags, ruby_glob_func *func, VALUE arg, rb_encoding *enc)
 {
     struct glob_pattern *list;
     const char *root, *start;
     char *buf;
-    size_t n, baselen = 0;
-    int status, dirsep = FALSE;
+    size_t n;
+    int status;
 
     start = root = path;
     flags |= FNM_SYSCASE;
@@ -2296,15 +1552,9 @@ ruby_glob0(const char *path, int fd, const char *base, int flags,
     root = rb_enc_path_skip_prefix(root, root + strlen(root), enc);
 #endif
 
-    if (*root == '/') root++;
+    if (root && *root == '/') root++;
 
     n = root - start;
-    if (!n && base) {
-	n = strlen(base);
-	baselen = n;
-	start = base;
-	dirsep = TRUE;
-    }
     buf = GLOB_ALLOC_N(char, n + 1);
     if (!buf) return -1;
     MEMCPY(buf, start, char, n);
@@ -2315,9 +1565,7 @@ ruby_glob0(const char *path, int fd, const char *base, int flags,
 	GLOB_FREE(buf);
 	return -1;
     }
-    status = glob_helper(fd, buf, baselen, n-baselen, dirsep,
-			 path_unknown, &list, &list + 1,
-			 flags, funcs, arg, enc);
+    status = glob_helper(buf, 0, UNKNOWN, UNKNOWN, &list, &list + 1, flags, func, arg, enc);
     glob_free_pattern(list);
     GLOB_FREE(buf);
 
@@ -2327,11 +1575,8 @@ ruby_glob0(const char *path, int fd, const char *base, int flags,
 int
 ruby_glob(const char *path, int flags, ruby_glob_func *func, VALUE arg)
 {
-    ruby_glob_funcs_t funcs;
-    funcs.match = func;
-    funcs.error = NULL;
-    return ruby_glob0(path, AT_FDCWD, 0, flags & ~GLOB_VERBOSE,
-		      &funcs, arg, rb_ascii8bit_encoding());
+    return ruby_glob0(path, flags & ~GLOB_VERBOSE, func, arg,
+		      rb_ascii8bit_encoding());
 }
 
 static int
@@ -2345,42 +1590,41 @@ rb_glob_caller(const char *path, VALUE a, void *enc)
     return status;
 }
 
-static const ruby_glob_funcs_t rb_glob_funcs = {
-    rb_glob_caller, rb_glob_error,
-};
-
-void
-rb_glob(const char *path, void (*func)(const char *, VALUE, void *), VALUE arg)
+static int
+rb_glob2(const char *path, int flags,
+	 void (*func)(const char *, VALUE, void *), VALUE arg,
+	 rb_encoding* enc)
 {
     struct glob_args args;
-    int status;
 
     args.func = func;
     args.value = arg;
-    args.enc = rb_ascii8bit_encoding();
+    args.enc = enc;
 
-    status = ruby_glob0(path, AT_FDCWD, 0, GLOB_VERBOSE, &rb_glob_funcs,
-			(VALUE)&args, args.enc);
+    if (flags & FNM_SYSCASE) {
+	rb_warning("Dir.glob() ignores File::FNM_CASEFOLD");
+    }
+
+    return ruby_glob0(path, flags | GLOB_VERBOSE, rb_glob_caller, (VALUE)&args,
+		      enc);
+}
+
+void
+rb_glob(const char *path, void (*func)(const char *, VALUE, void *), VALUE arg)
+{
+    int status = rb_glob2(path, 0, func, arg, rb_ascii8bit_encoding());
     if (status) GLOB_JUMP_TAG(status);
 }
 
 static void
 push_pattern(const char *path, VALUE ary, void *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);
+    rb_ary_push(ary, rb_external_str_new_with_enc(path, strlen(path), enc));
 }
 
 static int
 ruby_brace_expand(const char *str, int flags, ruby_glob_func *func, VALUE arg,
-		  rb_encoding *enc, VALUE var)
+		  rb_encoding *enc)
 {
     const int escape = !(flags & FNM_NOESCAPE);
     const char *p = str;
@@ -2393,7 +1637,7 @@ ruby_brace_expand(const char *str, int flags, ruby_glob_func *func, VALUE arg,
 	if (*p == '{' && nest++ == 0) {
 	    lbrace = p;
 	}
-	if (*p == '}' && lbrace && --nest == 0) {
+	if (*p == '}' && --nest <= 0) {
 	    rbrace = p;
 	    break;
 	}
@@ -2425,21 +1669,20 @@ ruby_brace_expand(const char *str, int flags, ruby_glob_func *func, VALUE arg,
 	    }
 	    memcpy(buf+shift, t, p-t);
 	    strlcpy(buf+shift+(p-t), rbrace+1, len-(shift+(p-t)));
-	    status = ruby_brace_expand(buf, flags, func, arg, enc, var);
+	    status = ruby_brace_expand(buf, flags, func, arg, enc);
 	    if (status) break;
 	}
 	GLOB_FREE(buf);
     }
     else if (!lbrace && !rbrace) {
-	status = glob_call_func(func, s, arg, enc);
+	status = (*func)(s, arg, enc);
     }
 
-    RB_GC_GUARD(var);
     return status;
 }
 
 struct brace_args {
-    ruby_glob_funcs_t funcs;
+    ruby_glob_func *func;
     VALUE value;
     int flags;
 };
@@ -2449,97 +1692,57 @@ glob_brace(const char *path, VALUE val, void *enc)
 {
     struct brace_args *arg = (struct brace_args *)val;
 
-    return ruby_glob0(path, AT_FDCWD, 0, arg->flags, &arg->funcs, arg->value, enc);
+    return ruby_glob0(path, arg->flags, arg->func, arg->value, enc);
 }
 
-int
-ruby_brace_glob_with_enc(const char *str, int flags, ruby_glob_func *func, VALUE arg, rb_encoding *enc)
+static int
+ruby_brace_glob0(const char *str, int flags, ruby_glob_func *func, VALUE arg,
+		 rb_encoding* enc)
 {
     struct brace_args args;
 
-    flags &= ~GLOB_VERBOSE;
-    args.funcs.match = func;
-    args.funcs.error = NULL;
+    args.func = func;
     args.value = arg;
     args.flags = flags;
-    return ruby_brace_expand(str, flags, glob_brace, (VALUE)&args, enc, Qfalse);
+    return ruby_brace_expand(str, flags, glob_brace, (VALUE)&args, enc);
 }
 
 int
 ruby_brace_glob(const char *str, int flags, ruby_glob_func *func, VALUE arg)
 {
-    return ruby_brace_glob_with_enc(str, flags, func, arg, rb_ascii8bit_encoding());
+    return ruby_brace_glob0(str, flags & ~GLOB_VERBOSE, func, arg,
+			    rb_ascii8bit_encoding());
 }
 
-struct push_glob_args {
-    struct glob_args glob;
-    int flags;
-    int fd;
-};
-
-static int
-push_caller(const char *path, VALUE val, void *enc)
+int
+ruby_brace_glob_with_enc(const char *str, int flags, ruby_glob_func *func, VALUE arg, rb_encoding *enc)
 {
-    struct push_glob_args *arg = (struct push_glob_args *)val;
-
-    return ruby_glob0(path, arg->fd, arg->glob.base, arg->flags, &rb_glob_funcs,
-		      (VALUE)&arg->glob, enc);
+    return ruby_brace_glob0(str, flags & ~GLOB_VERBOSE, func, arg, enc);
 }
 
 static int
-push_glob(VALUE ary, VALUE str, VALUE base, int flags)
+push_glob(VALUE ary, VALUE str, int flags)
 {
-    struct push_glob_args args;
+    struct glob_args args;
     rb_encoding *enc = rb_enc_get(str);
 
-#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.glob.base = 0;
-    args.flags = flags;
-    args.fd = AT_FDCWD;
-    if (!NIL_P(base)) {
-	if (!RB_TYPE_P(base, T_STRING) || !rb_enc_check(str, base)) {
-	    struct dir_data *dirp = DATA_PTR(base);
-	    if (!dirp->dir) dir_closed();
-#ifdef HAVE_DIRFD
-	    if ((args.fd = dirfd(dirp->dir)) == -1)
-		rb_sys_fail_path(dir_inspect(base));
-#endif
-	    base = dirp->path;
-	}
-	args.glob.base = RSTRING_PTR(base);
-    }
-#if defined _WIN32 || defined __APPLE__
-    enc = rb_utf8_encoding();
-#endif
+    if (enc == rb_usascii_encoding()) enc = rb_filesystem_encoding();
+    args.func = push_pattern;
+    args.value = ary;
+    args.enc = enc;
 
-    return ruby_brace_expand(RSTRING_PTR(str), flags,
-			     push_caller, (VALUE)&args, enc, str);
+    RB_GC_GUARD(str);
+    return ruby_brace_glob0(RSTRING_PTR(str), flags | GLOB_VERBOSE,
+			    rb_glob_caller, (VALUE)&args, enc);
 }
 
 static VALUE
-rb_push_glob(VALUE str, VALUE base, int flags) /* '\0' is delimiter */
+rb_push_glob(VALUE str, int flags) /* '\0' is delimiter */
 {
     long offset = 0;
     VALUE ary;
 
-    /* can contain null bytes as separators */
-    if (!RB_TYPE_P((str), T_STRING)) {
-	FilePathValue(str);
-    }
-    else {
-	rb_check_safe_obj(str);
-	rb_enc_check(str, rb_enc_from_encoding(rb_usascii_encoding()));
-    }
+    GlobPathValue(str, TRUE);
     ary = rb_ary_new();
 
     while (offset < RSTRING_LEN(str)) {
@@ -2547,7 +1750,7 @@ rb_push_glob(VALUE str, VALUE base, int flags) /* '\0' is delimiter */
 	int status;
 	p = RSTRING_PTR(str) + offset;
 	status = push_glob(ary, rb_enc_str_new(p, strlen(p), rb_enc_get(str)),
-			   base, flags);
+			   flags);
 	if (status) GLOB_JUMP_TAG(status);
 	if (offset >= RSTRING_LEN(str)) break;
 	p += strlen(p) + 1;
@@ -2561,7 +1764,7 @@ rb_push_glob(VALUE str, VALUE base, int flags) /* '\0' is delimiter */
 }
 
 static VALUE
-dir_globs(long argc, const VALUE *argv, VALUE base, int flags)
+dir_globs(long argc, const VALUE *argv, int flags)
 {
     VALUE ary = rb_ary_new();
     long i;
@@ -2569,80 +1772,45 @@ dir_globs(long argc, const VALUE *argv, VALUE base, int flags)
     for (i = 0; i < argc; ++i) {
 	int status;
 	VALUE str = argv[i];
-	FilePathValue(str);
-	status = push_glob(ary, str, base, flags);
+	GlobPathValue(str, TRUE);
+	status = push_glob(ary, str, flags);
 	if (status) GLOB_JUMP_TAG(status);
     }
 
     return ary;
 }
 
-static void
-dir_glob_options(VALUE opt, VALUE *base, int *flags)
-{
-    ID kw[2];
-    VALUE args[2];
-    kw[0] = rb_intern("base");
-    if (flags) kw[1] = rb_intern("flags");
-    rb_get_kwargs(opt, kw, 0, flags ? 2 : 1, args);
-    if (args[0] == Qundef || NIL_P(args[0])) {
-	*base = Qnil;
-    }
-#if USE_OPENDIR_AT
-    else if (rb_typeddata_is_kind_of(args[0], &dir_data_type)) {
-	*base = args[0];
-    }
-#endif
-    else {
-	FilePathValue(args[0]);
-	if (!RSTRING_LEN(args[0])) args[0] = Qnil;
-	*base = args[0];
-    }
-    if (flags && args[1] != Qundef) {
-	*flags = NUM2INT(args[1]);
-    }
-}
-
 /*
  *  call-seq:
- *     Dir[ string [, string ...] [, base: path] ] -> array
+ *     Dir[ array ]                 -> array
+ *     Dir[ string [, string ...] ] -> array
  *
  *  Equivalent to calling
- *  <code>Dir.glob([</code><i>string,...</i><code>], 0)</code>.
+ *  <code>Dir.glob(</code><i>array,</i><code>0)</code> and
+ *  <code>Dir.glob([</code><i>string,...</i><code>],0)</code>.
  *
  */
 static VALUE
 dir_s_aref(int argc, VALUE *argv, VALUE obj)
 {
-    VALUE opts, base;
-    argc = rb_scan_args(argc, argv, "*:", NULL, &opts);
-    dir_glob_options(opts, &base, NULL);
     if (argc == 1) {
-	return rb_push_glob(argv[0], base, 0);
+	return rb_push_glob(argv[0], 0);
     }
-    return dir_globs(argc, argv, base, 0);
+    return dir_globs(argc, argv, 0);
 }
 
 /*
  *  call-seq:
- *     Dir.glob( pattern, [flags], [base: path] )                       -> array
- *     Dir.glob( pattern, [flags], [base: path] ) { |filename| block }  -> nil
- *
- *  Expands +pattern+, which is a pattern string or an Array of pattern
- *  strings, and returns an array containing the matching filenames.
- *  If a block is given, calls the block once for each matching filename,
- *  passing the filename as a parameter to the block.
+ *     Dir.glob( pattern, [flags] ) -> matches
+ *     Dir.glob( pattern, [flags] ) { |filename| block }  -> nil
  *
- *  The optional +base+ keyword argument specifies the base directory for
- *  interpreting relative pathnames instead of the current working directory.
- *  As the results are not prefixed with the base directory name in this
- *  case, you will need to prepend the base directory name if you want real
- *  paths.
+ *  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 the pattern is not a regexp, it's closer to a shell glob.
- *  See File::fnmatch for the meaning of the +flags+ parameter.
- *  Case sensitivity depends on your system (File::FNM_CASEFOLD is ignored),
- *  as does the order in which the results are returned.
+ *  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.
@@ -2696,10 +1864,6 @@ dir_s_aref(int argc, VALUE *argv, VALUE obj)
  *     Dir.glob(rbfiles)                   #=> ["main.rb",
  *                                         #    "lib/song.rb",
  *                                         #    "lib/song/karaoke.rb"]
- *
- *     Dir.glob(rbfiles, base: "lib")      #=> ["song.rb",
- *                                         #    "song/karaoke.rb"]
- *
  *     libdirs = File.join("**", "lib")
  *     Dir.glob(libdirs)                   #=> ["lib"]
  *
@@ -2713,24 +1877,21 @@ dir_s_aref(int argc, VALUE *argv, VALUE obj)
 static VALUE
 dir_s_glob(int argc, VALUE *argv, VALUE obj)
 {
-    VALUE str, rflags, ary, opts, base;
+    VALUE str, rflags, ary;
     int flags;
 
-    argc = rb_scan_args(argc, argv, "11:", &str, &rflags, &opts);
-    if (argc == 2)
+    if (rb_scan_args(argc, argv, "11", &str, &rflags) == 2)
 	flags = NUM2INT(rflags);
     else
 	flags = 0;
-    dir_glob_options(opts, &base, &flags);
 
     ary = rb_check_array_type(str);
     if (NIL_P(ary)) {
-	ary = rb_push_glob(str, base, flags);
+	ary = rb_push_glob(str, flags);
     }
     else {
-	VALUE v = ary;
-	ary = dir_globs(RARRAY_LEN(v), RARRAY_CONST_PTR(v), base, flags);
-	RB_GC_GUARD(v);
+	volatile VALUE v = ary;
+	ary = dir_globs(RARRAY_LEN(v), RARRAY_CONST_PTR(v), flags);
     }
 
     if (rb_block_given_p()) {
@@ -2743,7 +1904,7 @@ dir_s_glob(int argc, VALUE *argv, VALUE obj)
 static VALUE
 dir_open_dir(int argc, VALUE *argv)
 {
-    VALUE dir = rb_funcallv(rb_cDir, rb_intern("open"), argc, argv);
+    VALUE dir = rb_funcall2(rb_cDir, rb_intern("open"), argc, argv);
 
     rb_check_typeddata(dir, &dir_data_type);
     return dir;
@@ -2783,14 +1944,6 @@ dir_foreach(int argc, VALUE *argv, VALUE io)
     return Qnil;
 }
 
-static VALUE
-dir_collect(VALUE dir)
-{
-    VALUE ary = rb_ary_new();
-    dir_each_entry(dir, rb_ary_push, ary, FALSE);
-    return ary;
-}
-
 /*
  *  call-seq:
  *     Dir.entries( dirname )                -> array
@@ -2800,8 +1953,8 @@ dir_collect(VALUE dir)
  *  directory. Will raise a <code>SystemCallError</code> if the named
  *  directory doesn't exist.
  *
- *  The optional <i>encoding</i> keyword argument specifies the encoding of the
- *  directory. If not specified, the filesystem encoding is used.
+ *  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"]
  *
@@ -2812,77 +1965,7 @@ dir_entries(int argc, VALUE *argv, VALUE io)
     VALUE dir;
 
     dir = dir_open_dir(argc, argv);
-    return rb_ensure(dir_collect, dir, dir_close, dir);
-}
-
-static VALUE
-dir_each_child(VALUE dir)
-{
-    return dir_each_entry(dir, dir_yield, Qnil, TRUE);
-}
-
-/*
- *  call-seq:
- *     Dir.each_child( dirname ) {| filename | block }                 -> nil
- *     Dir.each_child( dirname, encoding: enc ) {| filename | block }  -> nil
- *     Dir.each_child( dirname )                                       -> an_enumerator
- *     Dir.each_child( dirname, encoding: enc )                        -> an_enumerator
- *
- *  Calls the block once for each entry except for "." and ".." in the
- *  named directory, passing the filename of each entry as a parameter
- *  to the block.
- *
- *  If no block is given, an enumerator is returned instead.
- *
- *     Dir.each_child("testdir") {|x| puts "Got #{x}" }
- *
- *  <em>produces:</em>
- *
- *     Got config.h
- *     Got main.rb
- *
- */
-static VALUE
-dir_s_each_child(int argc, VALUE *argv, VALUE io)
-{
-    VALUE dir;
-
-    RETURN_ENUMERATOR(io, argc, argv);
-    dir = dir_open_dir(argc, argv);
-    rb_ensure(dir_each_child, dir, dir_close, dir);
-    return Qnil;
-}
-
-static VALUE
-dir_collect_children(VALUE dir)
-{
-    VALUE ary = rb_ary_new();
-    dir_each_entry(dir, rb_ary_push, ary, TRUE);
-    return ary;
-}
-
-/*
- *  call-seq:
- *     Dir.children( dirname )                -> array
- *     Dir.children( dirname, encoding: enc ) -> array
- *
- *  Returns an array containing all of the filenames except for "."
- *  and ".." in the given directory. Will raise a
- *  <code>SystemCallError</code> if the named directory doesn't exist.
- *
- *  The optional <i>encoding</i> keyword argument specifies the encoding of the
- *  directory. If not specified, the filesystem encoding is used.
- *
- *     Dir.children("testdir")   #=> ["config.h", "main.rb"]
- *
- */
-static VALUE
-dir_s_children(int argc, VALUE *argv, VALUE io)
-{
-    VALUE dir;
-
-    dir = dir_open_dir(argc, argv);
-    return rb_ensure(dir_collect_children, dir, dir_close, dir);
+    return rb_ensure(rb_Array, dir, dir_close, dir);
 }
 
 static int
@@ -3025,7 +2108,7 @@ file_s_fnmatch(int argc, VALUE *argv, VALUE obj)
 	args.value = path;
 	args.flags = flags;
 	if (ruby_brace_expand(RSTRING_PTR(pattern), flags, fnmatch_brace,
-			      (VALUE)&args, rb_enc_get(pattern), pattern) > 0)
+			      (VALUE)&args, rb_enc_get(pattern)) > 0)
 	    return Qtrue;
     }
     else {
@@ -3071,23 +2154,18 @@ dir_s_home(int argc, VALUE *argv, VALUE obj)
 /*
  * 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(void)
+rb_file_directory_p()
 {
 }
 #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)
 {
@@ -3095,85 +2173,6 @@ rb_dir_exists_p(VALUE obj, VALUE fname)
     return rb_file_directory_p(obj, fname);
 }
 
-static void *
-nogvl_dir_empty_p(void *ptr)
-{
-    const char *path = ptr;
-    DIR *dir = opendir(path);
-    struct dirent *dp;
-    VALUE result = Qtrue;
-
-    if (!dir) {
-	int e = errno;
-	switch (gc_for_fd_with_gvl(e)) {
-	  default:
-	    dir = opendir(path);
-	    if (dir) break;
-	    e = errno;
-	    /* fall through */
-	  case 0:
-	    if (e == ENOTDIR) return (void *)Qfalse;
-	    errno = e; /* for rb_sys_fail_path */
-	    return (void *)Qundef;
-	}
-    }
-    while ((dp = READDIR(dir, NULL)) != NULL) {
-	if (!to_be_skipped(dp)) {
-	    result = Qfalse;
-	    break;
-	}
-    }
-    closedir(dir);
-    return (void *)result;
-}
-
-/*
- * call-seq:
- *   Dir.empty?(path_name)  ->  true or false
- *
- * Returns <code>true</code> if the named file is an empty directory,
- * <code>false</code> if it is not a directory or non-empty.
- */
-static VALUE
-rb_dir_s_empty_p(VALUE obj, VALUE dirname)
-{
-    VALUE result, orig;
-    const char *path;
-    enum {false_on_notdir = 1};
-
-    FilePathValue(dirname);
-    orig = rb_str_dup_frozen(dirname);
-    dirname = rb_str_encode_ospath(dirname);
-    dirname = rb_str_dup_frozen(dirname);
-    path = RSTRING_PTR(dirname);
-
-#if defined HAVE_GETATTRLIST && defined ATTR_DIR_ENTRYCOUNT
-    {
-	u_int32_t attrbuf[SIZEUP32(fsobj_tag_t)];
-	struct attrlist al = {ATTR_BIT_MAP_COUNT, 0, ATTR_CMN_OBJTAG,};
-	if (getattrlist(path, &al, attrbuf, sizeof(attrbuf), 0) != 0)
-	    rb_sys_fail_path(orig);
-	if (*(const fsobj_tag_t *)(attrbuf+1) == VT_HFS) {
-	    al.commonattr = 0;
-	    al.dirattr = ATTR_DIR_ENTRYCOUNT;
-	    if (getattrlist(path, &al, attrbuf, sizeof(attrbuf), 0) == 0) {
-		if (attrbuf[0] >= 2 * sizeof(u_int32_t))
-		    return attrbuf[1] ? Qfalse : Qtrue;
-		if (false_on_notdir) return Qfalse;
-	    }
-	    rb_sys_fail_path(orig);
-	}
-    }
-#endif
-
-    result = (VALUE)rb_thread_call_without_gvl(nogvl_dir_empty_p, (void *)path,
-					    RUBY_UBF_IO, 0);
-    if (result == Qundef) {
-	rb_sys_fail_path(orig);
-    }
-    return result;
-}
-
 /*
  *  Objects of class <code>Dir</code> are directory streams representing
  *  directories in the underlying file system. They provide a variety of
@@ -3196,11 +2195,8 @@ Init_Dir(void)
     rb_define_singleton_method(rb_cDir, "open", dir_s_open, -1);
     rb_define_singleton_method(rb_cDir, "foreach", dir_foreach, -1);
     rb_define_singleton_method(rb_cDir, "entries", dir_entries, -1);
-    rb_define_singleton_method(rb_cDir, "each_child", dir_s_each_child, -1);
-    rb_define_singleton_method(rb_cDir, "children", dir_s_children, -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);
@@ -3227,7 +2223,6 @@ Init_Dir(void)
     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_dir_exists_p, 1);
-    rb_define_singleton_method(rb_cDir,"empty?", rb_dir_s_empty_p, 1);
 
     rb_define_singleton_method(rb_cFile,"fnmatch", file_s_fnmatch, -1);
     rb_define_singleton_method(rb_cFile,"fnmatch?", file_s_fnmatch, -1);
@@ -3264,18 +2259,5 @@ Init_Dir(void)
      *  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 55f29fda51..e6b20d54e3 100644
--- a/dln.c
+++ b/dln.c
@@ -47,7 +47,6 @@ void *xcalloc();
 void *xrealloc();
 #endif
 
-#undef free
 #define free(x) xfree(x)
 
 #include <stdio.h>
@@ -85,6 +84,10 @@ char *getenv();
 # endif
 #endif
 
+#if defined(__BEOS__) || defined(__HAIKU__)
+# include <image.h>
+#endif
+
 #ifndef dln_loaderror
 static void
 dln_loaderror(const char *format, ...)
@@ -102,12 +105,13 @@ dln_loaderror(const char *format, ...)
 # define USE_DLN_DLOPEN
 #endif
 
-#if defined(__hp9000s300) || ((defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)) && !defined(__ELF__)) || defined(NeXT) || defined(MACOSX_DYLD)
-# define EXTERNAL_PREFIX "_"
-#else
-# define EXTERNAL_PREFIX ""
+#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
 #endif
-#define FUNCNAME_PREFIX EXTERNAL_PREFIX"Init_"
 
 #if defined __CYGWIN__ || defined DOSISH
 #define isdirsep(x) ((x) == '/' || (x) == '\\')
@@ -1113,12 +1117,12 @@ dln_sym(const char *name)
 #endif
 #endif
 
-#ifdef _WIN32
+#if defined _WIN32 && !defined __CYGWIN__
 #include <windows.h>
 #include <imagehlp.h>
 #endif
 
-#ifdef _WIN32
+#if defined _WIN32 && !defined __CYGWIN__
 static const char *
 dln_strerror(char *message, size_t size)
 {
@@ -1174,26 +1178,25 @@ dln_strerror(void)
 static void
 aix_loaderror(const char *pathname)
 {
-    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");
+  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("\" ");
     }
-    else {
-	ERRBUF_APPEND(strerror(errno));
-	ERRBUF_APPEND("[loadquery failed]");
-    }
-    dln_loaderror("%s", errbuf);
+    ERRBUF_APPEND("\n");
+  } else {
+    ERRBUF_APPEND(strerror(errno));
+    ERRBUF_APPEND("[loadquery failed]");
+  }
+  dln_loaderror("%s", errbuf);
 }
 #endif
 
@@ -1245,34 +1248,27 @@ rb_w32_check_imported(HMODULE ext, HMODULE mine)
 void*
 dln_load(const char *file)
 {
-#if (defined _WIN32 || defined USE_DLN_DLOPEN) && defined RUBY_EXPORT
-    static const char incompatible[] = "incompatible library version";
-#endif
 #if !defined(_AIX) && !defined(NeXT)
     const char *error = 0;
+#define DLN_ERROR() (error = dln_strerror(), strcpy(ALLOCA_N(char, strlen(error) + 1), error))
 #endif
 
-#if defined _WIN32
+#if defined _WIN32 && !defined __CYGWIN__
     HINSTANCE handle;
-    WCHAR *winfile;
+    char winfile[MAXPATHLEN];
     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);
 
-    /* Convert the file path to wide char */
-    winfile = rb_w32_mbstr_to_wstr(CP_UTF8, file, -1, NULL);
-    if (!winfile) {
-	dln_memerror();
-    }
+    strlcpy(winfile, file, sizeof(winfile));
 
     /* Load file */
-    handle = LoadLibraryW(winfile);
-    free(winfile);
-
-    if (!handle) {
+    if ((handle = LoadLibrary(winfile)) == NULL) {
 	error = dln_strerror();
 	goto failed;
     }
@@ -1280,7 +1276,7 @@ dln_load(const char *file)
 #if defined _WIN32 && defined RUBY_EXPORT
     if (!rb_w32_check_imported(handle, rb_libruby_handle())) {
 	FreeLibrary(handle);
-	error = incompatible;
+	error = "incompatible library version";
 	goto failed;
     }
 #endif
@@ -1322,34 +1318,35 @@ 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
-	{
-	    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) {
-	    const size_t errlen = strlen(error = dln_strerror()) + 1;
-	    error = memcpy(ALLOCA_N(char, errlen), error, errlen);
+	    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);
 	    goto failed;
 	}
@@ -1442,6 +1439,54 @@ 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_find.c b/dln_find.c
index b08612764e..f41ceb051d 100644
--- a/dln_find.c
+++ b/dln_find.c
@@ -48,6 +48,13 @@ char *dln_argv0;
 #   define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
 #endif
 
+#ifdef HAVE_SYS_PARAM_H
+# include <sys/param.h>
+#endif
+#ifndef MAXPATHLEN
+# define MAXPATHLEN 1024
+#endif
+
 #ifdef HAVE_UNISTD_H
 # include <unistd.h>
 #endif
@@ -71,12 +78,11 @@ dln_find_exe_r(const char *fname, const char *path, char *buf, size_t size
     }
 
     if (!path) {
-	path =
-	    "/usr/local/bin" PATH_SEP
-	    "/usr/ucb" PATH_SEP
-	    "/usr/bin" PATH_SEP
-	    "/bin" PATH_SEP
-	    ".";
+#if defined(_WIN32)
+	path = "/usr/local/bin;/usr/ucb;/usr/bin;/bin;.";
+#else
+	path = "/usr/local/bin:/usr/ucb:/usr/bin:/bin:.";
+#endif
     }
     buf = dln_find_1(fname, path, buf, size, 1 DLN_FIND_EXTRA_ARG);
     if (envpath) free(envpath);
@@ -269,15 +275,13 @@ dln_find_1(const char *fname, const char *path, char *fbuf, size_t size,
 	    }
 	    goto next;
 	}
-#endif
+#endif /* _WIN32 or __EMX__ */
 
-#ifndef S_ISREG
-# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
-#endif
-	if (stat(fbuf, &st) == 0 && S_ISREG(st.st_mode)) {
+	if (stat(fbuf, &st) == 0) {
 	    if (exe_flag == 0) return fbuf;
 	    /* looking for executable */
-	    if (eaccess(fbuf, X_OK) == 0) return fbuf;
+	    if (!S_ISDIR(st.st_mode) && eaccess(fbuf, X_OK) == 0)
+		return fbuf;
 	}
       next:
 	/* if not, and no other alternatives, life is bleak */
diff --git a/dmydln.c b/dmydln.c
index 0fc0a5325e..25872efc98 100644
--- a/dmydln.c
+++ b/dmydln.c
@@ -1,6 +1,5 @@
 #include "ruby/ruby.h"
 
-NORETURN(void *dln_load(const char *));
 void*
 dln_load(const char *file)
 {
diff --git a/dmyenc.c b/dmyenc.c
deleted file mode 100644
index 7e006e826c..0000000000
--- a/dmyenc.c
+++ /dev/null
@@ -1,10 +0,0 @@
-#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/dmyext.c b/dmyext.c
index 4d273f7faf..34ea7a02f4 100644
--- a/dmyext.c
+++ b/dmyext.c
@@ -2,3 +2,8 @@ void
 Init_ext(void)
 {
 }
+
+void
+Init_enc(void)
+{
+}
diff --git a/doc/.document b/doc/.document
index d739c9f6bc..b48c0387a7 100644
--- a/doc/.document
+++ b/doc/.document
@@ -1,3 +1,4 @@
 *.rdoc
+ChangeLog*
 NEWS-*
 syntax
diff --git a/doc/ChangeLog-0.06_to_0.52 b/doc/ChangeLog-0.06_to_0.52
deleted file mode 100644
index 63826081b3..0000000000
--- a/doc/ChangeLog-0.06_to_0.52
+++ /dev/null
@@ -1,1147 +0,0 @@
-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
deleted file mode 100644
index 5f5b03ff40..0000000000
--- a/doc/ChangeLog-0.50_to_0.60
+++ /dev/null
@@ -1,462 +0,0 @@
-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
deleted file mode 100644
index 33b0326892..0000000000
--- a/doc/ChangeLog-0.60_to_1.1
+++ /dev/null
@@ -1,3955 +0,0 @@
-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 3f7d6bfb3c..07d7c6b165 100644
--- a/doc/ChangeLog-1.8.0
+++ b/doc/ChangeLog-1.8.0
@@ -1454,7 +1454,7 @@ 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
-	  argument type mismatch, and inline method_list().
+	  arguement type mismatch, and inline method_list().
 	  [ruby-core:01198]
 
 Wed Jun 25 14:40:33 2003  Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
@@ -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 accidentally removed.
+	* lib/net/pop.rb: Exception line was accidentaly 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 receiver's type.
+	  really a module, whose methods must be safe for reciever's type.
 
 	* eval.c (rb_eval): nosuper should not be inherited unless the
 	  overwritten method is an undef placeholder.
@@ -21236,7 +21236,7 @@ Sun Jan  3 01:37:58 1999  Takao KAWAMURA  <kawamura@ike.tottori-u.ac.jp>
 Sat Jan  2 17:09:06 1999  Yukihiro Matsumoto  <matz@netlab.co.jp>
 
 	* eval.c (rb_jump_tag): new api to invoke JUMP_TAG.  tag values
-	  can be obtained from rb_eval_string_protect()/rb_load_protect().
+	  can obtained from rb_eval_string_protect()/rb_load_protect().
 
 	* eval.c (rb_rescue): now catches all exceptions but SystemExit.
 
diff --git a/doc/ChangeLog-1.9.3 b/doc/ChangeLog-1.9.3
index eecfc44325..b8e3162511 100644
--- a/doc/ChangeLog-1.9.3
+++ b/doc/ChangeLog-1.9.3
@@ -3325,7 +3325,7 @@ Thu May 19 06:30:38 2011  Eric Hodel  <drbrain@segment7.net>
 Thu May 19 06:16:41 2011  Eric Hodel  <drbrain@segment7.net>
 
 	* lib:  Convert tabs to spaces for ruby files per
-	  https://bugs.ruby-lang.org/projects/ruby/wiki/DeveloperHowto#coding-style
+	  http://bugs.ruby-lang.org/projects/ruby/wiki/DeveloperHowto#coding-style
 	  Patch by Steve Klabnik [Ruby 1.9 - Bug #4730]
 	  Patch by Jason Dew [Ruby 1.9 - Feature #4718]
 
@@ -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 conversion with #to_str. [ruby-dev:43169] fixes #4362
+	  implicit convertion 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 conversion.
+	  parameter to get rid of wrong convertion.
 
 	* 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
-	  made by make_temfile is already closed.
+	  maked by make_temfile is already closed.
 
 Tue Dec 14 13:52:19 2010  NAKAMURA Usaku  <usa@ruby-lang.org>
 
@@ -12814,7 +12814,7 @@ Thu Aug  5 22:09:30 2010  Tanaka Akira  <akr@fsij.org>
 Thu Aug  5 21:20:31 2010  Yusuke Endoh  <mame@tsg.ne.jp>
 
 	* compile.c (NODE_ARGSCAT, NODE_ARGSPUSH): drop unused ARGSCAT
-	  results when popped is true.  [ruby-dev:41933], [Bug #3658]
+	  results when poped is true.  [ruby-dev:41933], [Bug #3658]
 	  This is retry of r28870 and r28873 which were reverted.
 
 Thu Aug  5 20:13:49 2010  Nobuyoshi Nakada  <nobu@ruby-lang.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-conversion encoding.
+	* io.c (rb_scan_open_args): add UTF8-MAC to no-convertion 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.
-	  (committed at r20981)
+	  (commited 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: committed magic for reducing RVALUE size on windows. (24->20byte)
+	* gc.c: commited 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
-	  accidentally HAVE_CLOSESOCKET is defined on windows again because
+	  accidently 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): conversion from `int' to `char' discards
+	* bignum.c (bignew_1): convertion 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 conversion.
+	* dln.c: avoid warning of const to non-const convertion.
 	  [ruby-dev:27041]
 
 	* eval.c, io.c, ruby.c: ditto.
@@ -77162,7 +77162,7 @@ Sun May 22 21:54:06 2005  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
 
 Sun May 22 19:11:35 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
 
-	* ext/openssl/lib/openssl/ssl.rb (OpenSSL::SSL::SSLServer#initialize):
+	* ext/openssl/lib/openssl/ssl.rb (OpenSSL::SSL::SSLServer#intialize):
 	  should initialize session id context. [ruby-core:4663]
 
 	* ext/openssl/ossl_ssl.c (ossl_sslctx_setup): add session id support.
@@ -82601,7 +82601,7 @@ Sat Sep 18 14:10:23 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* dir.c (dir_s_chdir): avoid memory leak and unnecessary chdir to
 	  the original directory when exception has caused in changing
-	  directory or within block.  thanks to Johan Holmberg
+	  direcotry or within block.  thanks to Johan Holmberg
 	  <holmberg@iar.se> [ruby-core:03446]
 
 Fri Sep 17 20:29:33 2004  NAKAMURA Usaku  <usa@ruby-lang.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 information.
+	* ext/tk/lib/tk.rb: bindinfo cannot return '%' substiturion infomation.
 
 	* 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 omitted. [ruby-dev:23883]
+	  "-I.FE-X" which both "I" and "F" are ommitted. [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) control Tk interpreters
+	* ext/tk/lib/remote-tk.rb: (NEW library) controll 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 compatibility)
+	  (Rev1.112 lost compatiblity)
 
 	* dir.c (fnmatch_helper): File.fnmatch('\/', '/', File::FNM_PATHNAME)
-	  should return true. (Rev1.112 lost compatibility)
+	  should return true. (Rev1.112 lost compatiblity)
 
 	* 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. (referring to mingw)
+	* bcc32/Makefile.sub: show more warnings. (refering 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 achieved by calling downcase() for single-byte
+	  in Win32. This is achived 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: slightly improved documentation (sync with 1.8)
+	* lib/fileutils.rb: slighly 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 error on non-http proxy URI.
+	 raise an errror 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 receives the exception of the callback.
+	  TkTimer#wait recieves 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-2.1.0 b/doc/ChangeLog-2.1.0
deleted file mode 100644
index 76edfd3ce7..0000000000
--- a/doc/ChangeLog-2.1.0
+++ /dev/null
@@ -1,18060 +0,0 @@
-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 promote 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
deleted file mode 100644
index 5a7dbf826d..0000000000
--- a/doc/ChangeLog-2.2.0
+++ /dev/null
@@ -1,12157 +0,0 @@
-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-2.3.0 b/doc/ChangeLog-2.3.0
deleted file mode 100644
index 7f3c4e672a..0000000000
--- a/doc/ChangeLog-2.3.0
+++ /dev/null
@@ -1,12187 +0,0 @@
-Thu Dec 24 23:01:57 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* NEWS: added entry for CGI.escapeHTML optimization.
-
-Thu Dec 24 18:43:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (rb_compile_error_with_enc, rb_compile_error),
-	  (rb_compile_bug): deprecate internal functions.
-
-	* parse.y (parser_yyerror): construct exception message with
-	  source code and caret.
-
-Thu Dec 24 17:25:42 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (append_compile_error), parse.y (compile_error):
-	  preserve encoding of source file name in exceptions.
-
-	* error.c (rb_compile_error_str, rb_compile_bug_str): add.
-
-Thu Dec 24 16:17:47 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* common.mk (fake.rb): $(arch)-fake.rb must depend on miniruby because
-	  it may depend on miniruby.
-
-Thu Dec 24 16:13:05 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* common.mk (ripper.c): r50045 wrongly replace $(PWD) with ../..
-	  It is the top of build directory, not topsrcdir.
-
-Thu Dec 24 15:02:42 2015  sorah (Shota Fukumori)  <her@sorah.jp>
-
-	* tool/vcs.rb (IO.popen): Refactor. Avoid assigning in condition.
-
-Thu Dec 24 15:01:38 2015  sorah (Shota Fukumori)  <her@sorah.jp>
-
-	* tool/file2lastrev.rb: Fix ArgumentError to work on Ruby 1.8.7.
-
-Thu Dec 24 14:44:08 2015  sorah (Shota Fukumori)  <her@sorah.jp>
-
-	* tool/vcs.rb (IO.popen): Enable on Ruby 1.9 where chdir option is not
-	  supported on IO.popen
-
-	* tool/vcs.rb (IO.popen): Fix NoMethodError. I guess r49705 was not
-	  tested... :/
-
-Thu Dec 24 14:57:03 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* NEWS: rename
-	  "Implementation changes" section to
-	  "Supported platform changes" section.
-
-	* NEWS: add "Implementation improvements" and add several entries.
-
-	* NEWS: add NEWS entries by Eric Wong. [ruby-core:72450]
-
-Thu Dec 24 00:26:05 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/io/console/extconf.rb: fix gem build failure on Windows.
-	  only win32_vk.inc is included in the gem and no dependencies for
-	  the header, so that gperf will not be mandatory.
-	  [ruby-core:72453] [Bug #11866]
-
-	* ext/io/console/io-console.gemspec: include depend file and
-	  win32_vk header.
-
-Wed Dec 23 23:58:44 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (rb_readwrite_syserr_fail): works with the given errno than
-	  thread local errno.
-
-Wed Dec 23 17:57:45 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c, io.c, util.c: prefer rb_syserr_fail with saved errno
-	  over setting errno then call rb_sys_fail, not to be clobbered
-	  potentially and to reduce thread local errno accesses.
-
-Wed Dec 23 11:58:52 2015  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
-
-	* string.c: Fix document. Default value of the first
-	  argument of `String#split` is not `$;` but `nil`.
-	  When `nil` is passed as first argument, `$;` is used.
-	  [ci skip] [Bug #11729] [ruby-dev:49378]
-
-Wed Dec 23 07:15:17 2015  Eric Wong  <e@80x24.org>
-
-	* ext/socket/init.c (rsock_init_sock): reject reserved FDs
-	  [ruby-core:72445] [Bug #11862]
-
-Wed Dec 23 02:59:26 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (__STDC_WANT_LIB_EXT1__): necessary to use memset_s
-	  in strict C99 mode.
-
-Wed Dec 23 02:34:36 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-Wed Dec 23 02:23:19 2015  Yuki Nishijima  <mail@yukinishijima.net>
-
-	* gems/bundled_gems: Upgrade the did_you_mean gem to 1.0.0
-
-	* NEWS: Add news about the did_you_mean gem
-
-Wed Dec 23 02:18:57 2015  Jake Worth  <jakeworth82@gmail.com>
-
-	* doc/contributing.rdoc: [DOC] remove an extra word "here".
-	  [Fix GH-1169]
-
-Wed Dec 23 01:58:20 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* regexec.c (USE_DIRECT_THREADED_VM): enable direct threaded VM by
-	  the default.
-
-Tue Dec 22 22:15:53 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gc.c (internal_object_p): should not expose singleton classes
-	  without a metaclass.  based on patches by ko1 and shugo.
-	  [Bug #11740]
-
-	* class.c (rb_singleton_class_object_p): added.
-
-Tue Dec 22 22:15:08 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/io/console/io-console.gemspec: bump up to 0.4.4.
-
-Tue Dec 22 22:11:06 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* NEWS: Added news entry of Psych 2.0.17
-
-Tue Dec 22 22:09:01 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* NEWS: Added news entry of RDoc 4.2.1
-
-Tue Dec 22 21:20:00 2015  Kenta Murata  <mrkn@mrkn.jp>
-
-	* ext/bigdecimal/bigdecimal.gemspec: bump version to 1.2.8.
-
-Tue Dec 22 21:08:05 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* 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.
-
-Tue Dec 22 20:25:33 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/psych/lib/psych.rb: bump version to 2.0.17
-	* ext/psych/psych.gemspec: ditto.
-
-Tue Dec 22 20:14:47 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c: move vm_callee_setup_block_arg() (and related
-	  functions) to the latter location.
-	  This moving recovers performance a little.
-	  [Bug #11829]
-
-Tue Dec 22 15:21:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (str_compat_and_valid): as scrub does nothing for dummy
-	  encoding string now, incompatible encoding is not a matter.
-
-Tue Dec 22 14:31:28 2015  Toru Iwase  <tietew@tietew.net>
-
-	* ext/cgi/escape/escape.c (optimized_escape_html): CGI.escapeHTML
-	  should return unfrozen new string.
-	  [ruby-core:72426] [Bug #11858]
-
-Tue Dec 22 05:39:58 2015  Takashi Kokubun  <takashikkbn@gmail.com>
-
-	* ext/cgi/escape/escape.c (preserve_original_state): Preserve
-	  original state for tainted and frozen.  [Fix GH-1166]
-	  [ruby-dev:49451] [Bug #11855]
-
-Tue Dec 22 03:57:20 2015  Eric Wong  <e@80x24.org>
-
-	* 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]
-
-Mon Dec 21 21:29:45 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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]
-
-Mon Dec 21 12:15:32 2015  Kimura Wataru  <kimuraw@i.nifty.jp>
-
-	* test/ruby/test_io.rb: handled rlimit value same as r52277
-	  [Bug #11852][ruby-dev:49446]
-
-Mon Dec 21 10:21:22 2015  Ilya Vassilevsky <vassilevsky@gmail.com>
-
-	* lib/net/http.rb (open_timeout): update default value in RDoc
-	  [ruby-core:72413]
-
-Mon Dec 21 10:18:46 2015  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* vm_backtrace.c (rb_profile_frames): ignore ifunc frames as it
-	  did before.  [ruby-core:72409] [Bug #11851]
-
-Mon Dec 21 09:33:17 2015  Karol Bucek  <kares@users.noreply.github.com>
-
-	* ext/openssl/lib/openssl/ssl.rb (OpenSSL::SSL::SSLSocket): fix
-	  NotImplementedError typo.  [Fix GH-1165]
-
-Sun Dec 20 20:54:51 2015  Takashi Kokubun  <takashikkbn@gmail.com>
-
-	* cgi/escape/escape.c: Optimize CGI.escapeHTML for
-	  ASCII-compatible encodings.  [Fix GH-1164]
-
-Sun Dec 20 15:36:46 2015  SHIBATA Hiroshi  <hsbt@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.
-
-Sun Dec 20 11:43:31 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parser_yylex): allow here documents in labeled
-	  argument.  [ruby-core:72396] [Bug #11849]
-
-Sun Dec 20 11:14:11 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* proc.c (rb_mod_define_method): should check Symbol or not.
-	  [Bug #11850]
-
-	* test/ruby/test_method.rb: add a test.
-
-Sun Dec 20 11:01:57 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* proc.c (rb_mod_define_method): fix notation.
-
-Sun Dec 20 10:54:15 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* proc.c (proc_new): fix notation.
-
-Sun Dec 20 00:29:00 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* proc.c (rb_proc_get_iseq): proc made from symbol does not have
-	  iseq.  fix infinite loop.  [ruby-core:72381] [Bug #11845]
-
-Sat Dec 19 20:06:10 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* enc/windows_1250.c: Should not use C++ style comments (C99 feature).
-	  [Bug #11843]
-
-Sat Dec 19 17:17:04 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-Sat Dec 19 14:28:01 2015  Jake Worth  <jakeworth82@gmail.com>
-
-	* ext/zlib/zlib.c (Init_zlib): [DOC] Fix double-word typo and
-	  grammatical error.  [Fix GH-1162]
-
-Sat Dec 19 14:23:59 2015  Jake Worth  <jakeworth82@gmail.com>
-
-	* lib/csv.rb (CSV#initialize): [DOC] Fix double-word typo.
-	  [Fix GH-1161]
-
-Sat Dec 19 10:33:33 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_2.c, enc/windows_1250.c: separate Windows-1250
-	  from ISO-8859-2 to fix 0x80..0x9e range (from Kimihito Matsui)
-
-Fri Dec 18 21:26:54 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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]
-
-Fri Dec 18 17:24:09 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (ibf_load_object_string): use fstring if frozen string.
-
-Fri Dec 18 16:54:38 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-Fri Dec 18 16:50:35 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (ibf_load_setup): check tainted string argument.
-
-Fri Dec 18 16:12:13 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: define USE_LAZY_LOAD if it is not defined.
-
-Fri Dec 18 15:40:06 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/stringio/stringio.c (strio_unget_bytes): extract from
-	  strio_ungetbyte to share with strio_ungetc.
-
-Fri Dec 18 12:39:42 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* doc/syntax/*.rdoc: separated modifier at sentence.
-	  [ci skip][fix GH-1121] Patch by @clandry94
-
-Fri Dec 18 12:09:21 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/stringio/stringio.c (strio_ungetbyte): pad with \000 when
-	  the current position is after the end.
-
-Fri Dec 18 11:24:48 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* 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]
-
-Fri Dec 18 11:09:38 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* vm.c (vm_exec): call RUBY_DTRACE_CMETHOD_RETURN_HOOK instead of
-	  RUBY_DTRACE_METHOD_RETURN_HOOK.
-
-Fri Dec 18 10:24:44 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/irb/ruby-lex.rb: fixed parse error for striped heredocument syntax.
-	  [fix GH-1127] Patch by @koic
-
-Fri Dec 18 09:44:47 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/pty/pty.c: fix double words typo.
-	  [ci skip][fix GH-1157] Patch by @jwworth
-
-Fri Dec 18 09:42:45 2015  SHIBATA Hiroshi  <hsbt@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.
-
-Fri Dec 18 07:39:01 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm.c (rb_vm_check_redefinition_opt_method): should check the real
-	  class instead of the origin iclass.
-	  [ruby-core:72188] [Bug #11826]
-
-Thu Dec 17 22:13:10 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_args.c (vm_caller_setup_arg_block): remove code for ifunc
-	  because it was made unnecessary by r52138.
-
-Thu Dec 17 16:13:10 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* proc.c (rb_block_arity): should not call GetProcPtr() for symbols.
-	  [ruby-core:72205] [Bug #11830]
-
-Thu Dec 17 14:16:29 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_scrub): the result should be infected by the
-	  original string.
-
-Thu Dec 17 13:35:27 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* transcode.c (rb_econv_substr_append, econv_primitive_convert):
-	  the result should be infected by the original string.
-
-Thu Dec 17 09:46:08 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* re.c (reg_names_iter): should consider encoding of regexp.
-	  [ruby-core:72185] [Bug #11825]
-
-Thu Dec 17 03:52:10 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* 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
-
-Thu Dec 17 03:15:25 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_call_method_each_type): should not set fastpath
-	  with keyword arguments for VM_METHOD_TYPE_ATTRSET type methods.
-
-	  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]
-
-	* test/ruby/test_keyword.rb: add a test for this fix.
-
-Wed Dec 16 20:32:43 2015  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* ext/fiddle/handle.c: check tainted string arguments.
-	  Patch provided by tenderlove and nobu.
-
-	* test/fiddle/test_handle.rb (class TestHandle): add test for above.
-
-
-Wed Dec 16 19:30:56 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm.c (vm_make_proc_from_block): should convert a Symbol to a Proc.
-	  [ruby-core:72083] [Bug #11811]
-
-Wed Dec 16 16:17:34 2015  Eric Wong  <e@80x24.org>
-
-	* test/ruby/test_io.rb: fix spelling errors
-
-Wed Dec 16 16:04:49 2015  Eric Wong  <e@80x24.org>
-
-	* NEWS: note IO#advise change [ruby-core:72168]
-
-Wed Dec 16 15:35:13 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c: fix mark miss for proc given as passed block.
-	  [Bug #11750]
-
-	* 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.
-
-	* vm.c (vm_make_env_each): ditto.
-
-	* test/ruby/test_proc.rb: add a test for this bug.
-
-Wed Dec 16 12:24:59 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* test_struct.rb: Test that initialize is overridable [#11708]
-
-Wed Dec 16 10:49:51 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (block_command, block_call): fix `&.` calls after
-	  block_call.  [Feature #11537]
-
-Wed Dec 16 00:53:45 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* lib/webrick/utils.rb (WEBrick::Utils::TimeoutHandler): Acquire
-	  TimeoutMutex only when accessing @timeout_info for avoiding
-	  potential deadlock. [Bug #11742] [ruby-dev:49387]
-
-Wed Dec 16 00:39:27 2015  Jake Worth  <jakeworth82@gmail.com>
-
-	* doc/extension.rdoc: [DOC] fix double-word typo.  [Fix GH-1153]
-
-Wed Dec 16 00:25:41 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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 Dec 15 23:13:10 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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]
-
-	* hash.c: ditto, after NOINSERT_UPDATE_CALLBACK().
-
-Tue Dec 15 18:04:04 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* NEWS: added news about EBCDIC encoding
-
-Tue Dec 15 17:57:57 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* 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)
-
-Tue Dec 15 16:19:26 2015  Takashi Kokubun  <takashikkbn@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.
-
-Tue Dec 15 13:50:05 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_oct): [DOC] mention radix indicators.
-	  [ruby-core:71310] [Bug #11648]
-
-Tue Dec 15 12:20:30 2015  Takashi Kokubun  <takashikkbn@gmail.com>
-
-	* lib/erb.rb: Simplify regexp to optimize erb scanner.
-	  [fix GH-1144]
-
-Tue Dec 15 11:56:24 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/uri/common.rb: make code block for rdoc.
-	  [ci skip][fix GH-1152] Patch by @Tonkpils
-
-Tue Dec 15 11:55:08 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/zlib/zlib.c: fix a typo.
-	  [ci skip][fix GH-1149] Patch by @crismali
-
-Tue Dec 15 09:14:14 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* tool/transcode_tablegen.rb: detailed documentation
-	  for transcode_tblgen function [ci skip]
-
-Mon Dec 14 22:11:11 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* 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
-
-Mon Dec 14 17:04:14 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* 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.
-
-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.
-
-Mon Dec 14 14:33:35 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/xmlrpc.rb: added documentation for parser details.
-	  [ci skip][fix GH-1124] Patch by @jrafanie
-
-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.
-	* process.c: ditto.
-	* string.c: ditto.
-	* vm_trace.c: ditto.
-
-Mon Dec 14 11:41:59 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/cgi.rb: fix a typo in documentation.
-	  [ci skip][fix GH-1140] Patch by @jutaz
-
-Mon Dec 14 11:31:00 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* 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 Dec 14 11:27:01 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* 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.
-
-Mon Dec 14 11:25:57 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* benchmark/bm_app_aobench.rb: fix typos.
-	  [ci skip][fix GH-1140] Patch by @jutaz
-	* benchmark/bm_vm_thread_pipe.rb: ditto.
-
-Sun Dec 13 23:46:10 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (trace_lex_state): trace lex_state changes if yydebug is
-	  set, and send the messages to rb_stdout.
-
-	* parse.y (rb_parser_printf): store YYPRINTF messages per lines
-	  so that lex_state traces do not mix.
-
-	* tool/ytab.sed: add parser argument to yy_stack_print too.
-
-Sun Dec 13 20:41:16 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (build_lex_state_name, trace_lex_state): lex_state is
-	  now bit flags and can be set 2 bits or more.
-
-Sun Dec 13 20:26:30 2015  Yuki Yugui Sonoda  <yugui@yugui.jp>
-
-	* test/ruby/test_syntax.rb: fix typo in test
-
-Sun Dec 13 20:12:14 2015  Yuki Yugui Sonoda  <yugui@yugui.jp>
-
-	* parse.y (parse_percent): Allow %-literals in labeled arg as
-	  r51624 did for parentheses.
-	  Fixes [ruby-core:72084] [Bug #11812].
-
-Sun Dec 13 20:02:15 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ChangeLog: fix a typo
-
-Sun Dec 13 19:54:26 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/lib/envutil.rb: move envutil's assertions under Test::Unit::Assertion.
-	* test/lib/test/unit/assertions.rb: ditto.
-
-Sun Dec 13 19:24:20 2015  Yuki Yugui Sonoda  <yugui@yugui.jp>
-
-	* parse.y (lex_state_name): Make it return the correct names.
-	  Add new names to follow r51617; Indices ffs(2) returns are 1-origin.
-
-Sun Dec 13 18:40:45 2015  Yuki Yugui Sonoda  <yugui@yugui.jp>
-
-	* parse.y: debug output of lex_state transition if PARSER_DEBUG
-
-Sun Dec 13 18:49:25 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (parse_mode_enc): preserve encoding of mode string in
-	  warnings.
-
-	* io.c (io_encname_bom_p): check BOM prefix only, not including
-	  UTF prefix.
-
-	* io.c (parse_mode_enc): warn BOM with non-UTF encoding.
-
-	* io.c (parse_mode_enc): fix buffer overflow.
-
-Sun Dec 13 18:35:57 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/fiddle/function.c (initialize): check all arguments first.
-	  reported by Marcin 'Icewall' Noga of Cisco Talos.
-
-	* ext/fiddle/conversions.h (PTR2NUM): use signed integer to make
-	  Fixnum for negative values.
-
-Sun Dec 13 18:33:41 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-Sun Dec 13 18:28:52 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/psych/psych_emitter.c (start_document): should not exceed
-	  tags array range.
-
-	* ext/psych/psych_emitter.c (start_document): ensure string before
-	  encoding conversion.
-
-Sun Dec 13 18:26:31 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/tk/tkutil/tkutil.c (tk_hash_kv): check types of array
-	  argument.  reported by Marcin 'Icewall' Noga of Cisco Talos.
-
-	* 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.
-
-	* ext/tk/tkutil/tkutil.c (cbsubst_table_setup): check types of
-	  argument elements.  reported by Marcin 'Icewall' Noga of Cisco
-	  Talos.
-
-Sun Dec 13 18:19:20 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/win32ole/win32ole.c (ole_vstr2wc): check argument type, vstr
-	  must be a String here.  reported by Marcin 'Icewall' Noga of
-	  Cisco Talos.
-
-Sun Dec 13 16:41:01 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (BOOTSTRAPRUBY): make BASERUBY full path before
-	  building ruby to get rid of unexpectedly invoking built ruby.
-	  [ruby-core:72065] [Bug #11807]
-
-	* configure.in (BOOTSTRAPRUBY): use MINIRUBY but not BASERUBY
-	  unless cross compiling.  [ruby-core:72065] [Bug #11807]
-
-Sun Dec 13 14:17:19 2015  Akinori MUSHA  <knu@iDaemons.org>
-
-	* test/test_shellwords.rb (TestShellwords): Add many more tests
-	  for handling whitespace characters and frozenness.
-
-Sun Dec 13 14:16:09 2015  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/shellwords.rb (Shellwords#shellsplit): Document that this
-	  method does not treat shell metacharacters as such.
-
-Sun Dec 13 12:17:43 2015  Eric Wong  <e@80x24.org>
-
-	* lib/shellwords.rb (shellescape): duplicate frozen literal
-	* test/test_shellwords.rb (test_stringification): new test
-
-Sun Dec 13 11:47:35 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* object.c (rb_inspect): check the default internal encoding as
-	  String#inspect do.
-	  [ruby-dev:49415] [Bug #11787]
-
-Sun Dec 13 11:38:12 2015  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/shellwords.rb: Turn on frozen-string-literal after fixing
-	  shellsplit.
-
-Sun Dec 13 10:44:44 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* KNOWNBUGS.rb: Fixed typo, made more explicit [ci skip]
-
-Sun Dec 13 10:26:47 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* 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]
-
-Sun Dec 13 06:40:30 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/ostruct.rb: Have OpenStruct#dig raise if argument is not a
-	  symbol
-	  nor a string. See [#11762]
-
-Sun Dec 13 00:05:42 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_insnhelper.c (vm_call_method_missing): method_missing should
-	  not be refined.
-	  [ruby-core:72080] [Bug #11809]
-
-Sat Dec 12 23:00:17 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/nkf/nkf-utf8/nkf.c: Merge nkf 2.1.4.
-
-Sat Dec 12 18:52:26 2015  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]
-
-Sat Dec 12 17:59:07 2015  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
-
-	* test/ruby/test_regexp.rb: Add test cases for `$KCODE` and `$=` warning
-	  [Misc #11770][ruby-dev:49398]
-
-Sat Dec 12 17:11:57 2015  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* doc/NEWS-0.2.2: add description about incompatible change in Hash
-	  duplicated key overriding policy. [Bug #10315] [Bug #11501]
-
-Sat Dec 12 07:44:38 2015  Eric Wong  <e@80x24.org>
-
-	* 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]
-
-Sat Dec 12 07:05:29 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* enc/windows_1252.c: separate from ISO-8859-1 to fix 0x80..0x9e
-	  range.  [ruby-core:64049] [Bug #10097]
-
-Fri Dec 11 23:33:40 2015  Yusuke Endoh  <mame@ruby-lang.org>
-
-	* sample/trick2015/: added the award-winning entries of TRICK 2015.
-	  See https://github.com/tric/trick2015 for the contest outline.
-
-Fri Dec 11 17:59:05 2015  Eric Wong  <e@80x24.org>
-
-	* insns.def (opt_case_dispatch): avoid converting Infinity
-	* test/ruby/test_optimization.rb (test_opt_case_dispatch_inf): new
-	  [ruby-dev:49423] [Bug #11804]'
-
-Fri Dec 11 16:48:57 2015  Eric Wong  <e@80x24.org>
-
-	* hash.c (rb_num_hash_start): avoid pathological behavior
-	  [ruby-core:72028] [Feature #11405]
-
-Fri Dec 11 11:58:46 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* NEWS: Mentioned rubygems-2.5.1
-
-Fri Dec 11 11:52:39 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rubygems: Update to RubyGems 2.5.1
-	* test/rubygems: ditto.
-
-Fri Dec 11 11:38:14 2015  Nobuyoshi Nakada  <nobu@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
-
-Fri Dec 11 03:44:43 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* object.c (rb_inspect): dump inspected result with rb_str_escape()
-	  instead of raising Encoding::CompatibilityError. [Feature #11801]
-
-	* 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.
-
-Thu Dec 10 14:59:59 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* test/ruby/test_gc.rb (test_expand_heap): relax condition (1->2).
-
-Thu Dec 10 14:15:59 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* cont.c: fix a double word typo.
-	  [Bug #11313][ruby-core:69749]
-
-Thu Dec 10 14:13:34 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/tk/lib/multi-tk.rb: fix typos.
-	  [Bug #11764][ruby-core:71800]
-
-Thu Dec 10 11:33:34 2015  Eric Wong  <e@80x24.org>
-
-	* compile.c (iseq_compile_each): reduce needless rb_str_dup
-	  [ruby-core:72018] <5668DB6E.8000101@ruby-lang.org>
-
-Thu Dec 10 09:32:51 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb, lib/shellwords.rb: disable frozen-string-literal.
-	  [ruby-core:72011] [Bug #11800]
-
-Thu Dec 10 06:33:39 2015  Eric Wong  <e@80x24.org>
-
-	* marshal.c (memsize_dump_arg): remove NULL check
-	  (memsize_load_arg): ditto
-
-Thu Dec 10 05:53:18 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* tool/mkconfig.rb: rbconfig must not be frozen-string-literal to
-	  expand CONFIG hash.  [ruby-core:72006] [Bug #11798]
-
-Thu Dec 10 05:03:51 2015  Eric Wong  <e@80x24.org>
-
-	* ext/socket/ifaddr.c (ifaddr_mark): remove empty function
-	  (ifaddr_type): pass zero to rb_data_type_t.function.dmark
-
-Thu Dec 10 04:49:16 2015  Eric Wong  <e@80x24.org>
-
-	* proc.c (bm_free): remove, use default free
-	  (method_data_type): use RUBY_TYPED_DEFAULT_FREE
-
-Thu Dec 10 02:01:41 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* 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]
-
-	* NEWS: apply about it.
-
-	* test/ruby/test_rubyoptions.rb: catch up this fix with refactoring.
-
-Thu Dec 10 00:06:56 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* 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
-
-	* iseq.c: fix document of iseq.to_binary.
-	  [Fix GH-1134]
-
-	* sample/iseq_loader.rb: catch up this change.
-
-	* test/lib/iseq_loader_checker.rb: ditto.
-
-Wed Dec  9 17:02:03 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* regparse.h (SET_NTYPE): get rid of breaking strict aliasing.
-	  patch by Zarko Todorovski in [ruby-core:71953].  [Bug #11790]
-
-Wed Dec  9 16:10:37 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c (rb_vm_cref_in_context): Module#define_method in non-class
-	  expression should be public.
-	  [Bug #11754]
-
-	* test/ruby/test_method.rb: add a test.
-
-Wed Dec  9 14:45:27 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (gc_mark_stacked_objects): fix typo.
-	  reported by XIE Zhibang. [Bug #11763]
-
-Wed Dec  9 14:37:51 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* doc/syntax/refinements.rdoc: remove outdated description.
-
-Wed Dec  9 09:58:09 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* ext/**/*.c (*_memsize): same as r52986 for extensions.
-
-Wed Dec  9 09:46:19 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* .gitignore: ignored ISeq binary format.
-
-Wed Dec  9 09:34:41 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* *.c (*_memsize): do not check ptr.
-	  NULL checking is finished Before call of memsize functions.
-	  See r52979.
-
-Wed Dec  9 09:25:29 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/net/smtp/test_response.rb: use Test::Unit. We should use Test::Unit
-	  without rubygems and rdoc.
-
-Wed Dec  9 06:26:23 2015  Colin Kelley <colindkelley@gmail.com>
-
-	* 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]
-
-Wed Dec  9 06:25:47 2015  Eric Wong  <e@80x24.org>
-
-	* test/uri/test_generic.rb (to_s): new test
-	  [ruby-core:71820]
-
-Wed Dec  9 02:18:52 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (ibf_dump_memsize): should check NULL.
-
-Wed Dec  9 01:46:35 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* string.c (rb_str_init): now accepts new option parameter `encoding'.
-	  [Feature #11785]
-
-Wed Dec  9 00:52:37 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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]
-
-Wed Dec  9 00:24:33 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (iseq_ibf_dump): dump extra data just string length.
-
-	* sample/iseq_loader.rb: add using
-	  RubyVM::InstructionSequence.from_binary_format_extra_data method
-	  (commented out).
-
-Mon Dec  9 00:21:19 2015  Yuki Nishijima  <mail@yukinishijima.net>
-
-	* gems/bundled_gems: Upgrade the did_you_mean gem to 1.0.0.rc1
-
-Wed Dec  9 00:17:49 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (ibf_load_setup): cast to int.
-
-Wed Dec  9 00:13:09 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (ibf_setup_load): rename to ibf_load_setup().
-
-	* compile.c (iseq_load_setup): check binary format.
-
-Tue Dec  8 23:30:07 2015  Naohisa Goto  <ngotogenome@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.
-
-Tue Dec  8 23:05:47 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (iseq_ibf_dump): fix for clang type checker.
-
-Tue Dec  8 23:04:02 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.c (iseq_s_load): fix mysterious bug.
-
-Tue Dec  8 22:31:58 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* introduce new ISeq binary format serializer/de-serializer
-	  and a pre-compilation/runtime loader sample.
-	  [Feature #11788]
-
-	* 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)
-
-	* compile.c: implement body of this new feature.
-
-	* 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.
-
-	  We can return any ISeq object as a result value.
-	  Otherwise loading will be continue as usual.
-
-	  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.
-
-	* iseq.h: move ISEQ_MAJOR/MINOR_VERSION (and some definitions)
-	  from iseq.c.
-
-	* encoding.c (rb_data_is_encoding), internal.h: added.
-
-	* 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().
-
-	* insns.def: some check for lazy loading feature.
-
-	* vm_insnhelper.c: ditto.
-
-	* proc.c: ditto.
-
-	* vm.c: ditto.
-
-	* test/lib/iseq_loader_checker.rb: enabled iff suitable
-	  environment variables are provided.
-
-	* test/runner.rb: enable lib/iseq_loader_checker.rb.
-
-	* sample/iseq_loader.rb: add sample compiler and loader.
-
-	    $ ruby sample/iseq_loader.rb [dir]
-
-	  will compile all ruby scripts in [dir].
-	  With default setting, this compile creates *.rb.yarb files
-	  in same directory of target .rb scripts.
-
-	    $ ruby -r sample/iseq_loader.rb [app]
-
-	  will run with enable to load compiled binary data.
-
-Tue Dec  8 21:21:16 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* NEWS: mention about Enumerator::Lazy#grep_v.
-	  [ruby-core:71845] [Feature #11773]
-
-Tue Dec  8 17:36:36 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c: removed unused variable
-
-Tue Dec  8 16:23:40 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* enumerator.c (lazy_grep_v): add Enumerator::Lazy#grep_v as well
-	  as Enumerable, to enumerate lazily.
-	  [ruby-core:71845] [Feature #11773]
-
-Tue Dec  8 14:27:07 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (name_err_local_variables): new method
-	  NameError#local_variables for internal use only.
-	  [Feature #11777]
-
-Tue Dec  8 14:20:38 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* marshal.c (w_objivar): skip internal instance variables in
-	  T_OBJECT too.
-
-Tue Dec  8 12:58:04 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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 Dec  8 10:40:21 2015  Eric Wong  <e@80x24.org>
-
-	* 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 Dec  8 10:19:02 2015  Jake Worth  <jakeworth82@gmail.com>
-
-	* lib/optparse.rb: fix double word typo in the document.
-	  [Misc #10608] [Fix GH-1126]
-
-Tue Dec  8 09:03:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/date/date_core.c (d_lite_lshift): should check the argument
-	  before negation.
-
-Tue Dec  8 08:56:16 2015  Eric Wong  <e@80x24.org>
-
-	* insns.def (opt_case_dispatch): check Float#=== redefinition
-	* test/ruby/test_optimization.rb (test_opt_case_dispatch): new
-	  [ruby-core:71920] [Bug #11784]
-
-Tue Dec  8 03:56:05 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* 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.
-
-	  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.
-
-	* test/runner.rb: require test/lib/iseq_loader_checker.rb but
-	  disabled at default (commented out).
-
-Tue Dec  8 03:45:47 2015  Eric Wong  <e@80x24.org>
-
-	* doc/extension.rdoc: warn about kwargs performance in C
-	  [Feature #11339] [ci skip]
-
-Tue Dec  8 03:44:51 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.c (iseq_load): disable peephole optimization option
-	  because apply it multiple times change the sequence.
-	  (iseq != peephole_optimize(load(iseq.to_a)))
-
-Tue Dec  8 03:43:21 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (rb_iseq_build_from_ary): do not allocate table
-	  if table_size is 0.
-
-Tue Dec  8 03:30:34 2015  Eric Wong  <e@80x24.org>
-
-	* ext/socket/unixsocket.c (unix_send_io): document args
-	  (unix_recv_io): ditto
-	* test/socket/test_unix.rb (test_fd_passing_class_mode): added
-
-Tue Dec 08 02:21:35 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* 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.
-
-	  For example, this method is useful to test iseq dumper/loader
-	  such as RubyVM::InstructionSequence#to_a and rb_iseq_load().
-
-	  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.
-
-	  So that we don't guarantee future compatibility of this method.
-	  Basically, do not use this method.
-
-Tue Dec  8 01:57:13 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* ext/psych/*: update psych to 2.0.16
-	* test/psych/*: ditto
-
-Mon Dec  7 23:45:20 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* string.c: introduce String#+@ and String#-@ to control
-	  String mutability.
-	  [Feature #11782]
-
-Mon Dec  7 23:39:49 2015  Ben Miller  <bjmllr@gmail.com>
-
-	* parse.y: add heredoc <<~ syntax.  [Feature #9098]
-
-Mon Dec  7 23:06:16 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* prelude.rb (IO#read_nonblock): [DOC] add missing options to
-	  call-seq.  [ruby-core:71627] [Bug #11730]
-
-Mon Dec  7 15:50:50 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* .gitignore: added cygruby*.def for Cygwin
-
-Sun Dec  6 19:52:31 2015  Eric Wong  <e@80x24.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]
-
-Sun Dec  6 18:25:22 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* 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.
-
-Sun Dec  6 15:25:06 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/io/console/console.c (console_getpass): add IO#getpass
-	  method.
-
-Sun Dec  6 08:39:05 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/json/json.gemspec: bump version to json 1.8.3. CRuby already contained
-	  upstream changes.
-
-	  https://github.com/ruby/ruby/commit/4d059bf9f5f10f3d3088de49fc87e5555db7770d
-	  https://github.com/flori/json/commit/d4c99de78905d96c3f301f48b2c789943bb3f098
-
-	* ext/json/lib/json/version.rb: ditto.
-
-Sat Dec  5 17:48:25 2015  Lars Kanis  <lars@greiz-reinsdorf.de>
-
-	* tool/fake.rb: Fix cross build when srcdir is an absolute path.
-
-	* Makefile.in: PREP dependency is needed when cross build too, not
-	  "-r$(arch)-fake" to be  used before created.  [Fix GH-1125]
-
-Sat Dec  5 17:26:24 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (env_str_new, env_path_str_new): make default string
-	  UTF-8 for the case conversion is not possible.  [Bug #8822]
-
-	* hash.c (get_env_cstr): convert non-ASCII string to UTF-8 string.
-
-	* hash.c (ruby_setenv): use wide char version to put environment
-	  variable to deal with non-ASCII value.
-
-Sat Dec  5 09:56:50 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby_atomic.h (ATOMIC_CAS): old value to be swapped should be
-	  same as the destination.  immediate value may need type
-	  promotion.
-
-	* ruby_atomic.h (ATOMIC_SIZE_CAS): fix the argument order of
-	  InterlockedCompareExchange64.  new value and then old value is
-	  the last.
-
-Sat Dec  5 09:23:34 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* random.c (fill_random_seed): fix the size to be filled, not the
-	  size of element, but the whole size of array.
-
-Sat Dec  5 06:03:54 2015  Eric Wong  <e@80x24.org>
-
-	* vm.c (ruby_vm_verbose_ptr): make static
-	  (ruby_vm_debug_ptr): ditto
-
-Sat Dec  5 00:56:29 2015  Naohisa Goto  <ngotogenome@gmail.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.
-
-Fri Dec  4 19:52:52 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_13.c: Added three missing lower/upper-case
-	  character pairs (from Kimihito Matsui)
-
-Fri Dec  4 18:57:57 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* 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)
-
-Fri Dec  4 16:48:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-Fri Dec  4 15:21:45 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rubygems: Update to RubyGems 2.5.0+ HEAD(fdab4c4).
-	  this version includes #1396, #1397, #1398, #1399
-	* test/rubygems: ditto.
-
-Fri Dec  4 11:22:40 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread.c (rb_thread_setname): name must be ascii-compatible, as
-	  pthread APIs do not accept legacy wide char strings.
-
-Thu Dec  3 15:39:21 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/scanf.rb: fixed double words typo.
-	  [ci skip][fix GH-1123] Patch by @jwworth
-
-Thu Dec  3 15:37:56 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* 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.
-
-Thu Dec  3 15:33:08 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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]
-
-Thu Dec  3 14:22:16 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* range.c (range_to_s): should be infected by the receiver.
-	  str2 infects by appending.  [ruby-core:71811] [Bug #11767]
-
-Thu Dec  3 11:57:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-	* thread.c (rb_thread_setname): use SET_ANOTHER_THREAD_NAME.  OS X
-	  is not possible to set another thread name.
-
-	* thread_pthread.c (native_set_thread_name, thread_timer): use
-	  SET_CURRENT_THREAD_NAME.
-
-Wed Dec 02 22:57:46 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* 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).
-
-	  Index 0 to 2 of mark_ary are reserved by these objects.
-
-	* iseq.c: catch up this fix.
-
-	* compile.c (rb_iseq_original_iseq): trivial rewrite.
-
-Wed Dec  2 17:19:02 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.h: introduce ISEQ_ORIGINAL_ISEQ() and
-	  ISEQ_ORIGINAL_ISEQ_ALLOC() macro.
-
-	* compile.c: use them to access original iseq buffer.
-
-	* iseq.c: ditto.
-
-	* vm_core.h: rename iseq field to support this fix.
-
-Wed Dec  2 17:10:32 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.h: introduce ISEQ_FLIP_CNT_INCREMENT() macro.
-
-	* compile.c (iseq_compile_each): use it.
-
-	* vm_core.h: rename flip_cnt field to support this fix.
-
-Wed Dec  2 17:05:15 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.h: introduce ISEQ_COVERAGE() and ISEQ_COVERAGE_SET() macro.
-
-	* compile.c: use them.
-
-	* iseq.c: ditto.
-
-	* iseq.c (rb_iseq_coverage): added.
-
-	* thread.c (update_coverage): use rb_iseq_coverage().
-
-	* vm_core.h: rename coverage field name to support this fix.
-
-Wed Dec  2 17:00:54 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* encoding.c (enc_name, rb_enc_name_list_i, rb_enc_aliases_enc_i):
-	  make fstring instead of making each copies.
-
-Wed Dec  2 16:32:08 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.h: introduce ISEQ_COMPILE_DATA() macro.
-
-	* compile.c, iseq.c: use ISEQ_COMPILE_DATA().
-
-	* vm_core.h: rename compile_data field to support this fix.
-
-Wed Dec  2 16:27:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* encoding.c (enc_m_loader): defer finding encoding object not to
-	  be infected by marshal source.  [ruby-core:71793] [Bug #11760]
-
-	* 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.
-
-	* marshal.c (compat_allocator_table): initialize
-	  compat_allocator_tbl on demand.
-
-	* object.c (rb_undefined_alloc): extract from rb_obj_alloc.
-
-Wed Dec  2 15:12:43 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* configure.in: Fixed double negative comments.
-	  [Bug #11698][ruby-core:71506]
-
-Wed Dec  2 14:55:01 2015  yui-knk  <spiketeika@gmail.com>
-
-	* test/ruby/test_string.rb: removed non executing tests.
-	  [Misc #11757][ruby-dev:49397]
-
-Wed Dec  2 11:23:06 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/csv.rb: enable frozen_string_literal.
-	  [fix GH-1116] Patch by @marshall-lee
-
-Wed Dec  2 10:36:25 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/bigdecimal/bigdecimal.c: Fix double word typo.
-	  [ci skip][fix GH-1120] Patch by @jwworth
-
-Wed Dec  2 07:43:51 2015  Eric Wong  <e@80x24.org>
-
-	* 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
-
-Wed Dec  2 07:41:08 2015  Eric Wong  <e@80x24.org>
-
-	* missing/explicit_bzero.c (explicit_bzero): fixup r52839
-	  for compilers with "weak" attribute
-
-Wed Dec  2 06:47:25 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* missing/explicit_bzero.c: add ruby_explicit_bzero_hook_unused
-	  for preventing optimization. Inspired from OpenBSD.
-
-Tue Dec  1 23:36:39 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread.c (rb_thread_setname): allow to reset thread name.
-
-Tue Dec  1 23:14:04 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread.c (rb_thread_setname): check the argument if valid
-	  string.  [ruby-core:71774] [Bug #11756]
-
-Tue Dec  1 17:13:41 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_string_value_cstr): should not raise on frozen
-	  string.
-
-Tue Dec  1 09:35:29 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* missing/explicit_bzero.c: add a few comment.
-
-Tue Dec  1 09:31:19 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* missing/explicit_bzero.c: add disabling optimization on gcc.
-
-Tue Dec  1 07:50:33 2015  Eric Wong  <e@80x24.org>
-
-	* missing/explicit_bzero.c: new file. define explicit_bzero.
-	  Fixup r52806
-
-Thu Oct 22 12:54:43 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* 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.
-
-	* 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.
-
-	* thread_pthread.c (print_signal_list): removed.
-
-Thu Oct 22 08:03:49 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* test/ruby/test_rand.rb (TestRand#test_default_seed): add
-	  srand case.
-
-Thu Oct 22 06:33:38 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* 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 Oct 22 06:20:48 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* 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.
-
-	* random.c (init_hashseed): add MT argument.
-	* random.c: (init_siphash): ditto.
-
-	* test/ruby/test_rand.rb (TestRand#test_default_seed): new
-	  test for Random::DEFAULT::seed.
-
-Thu Oct 22 05:23:48 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* random.c (init_hashseed, init_siphash): extract initialize
-	  functions.
-
-Thu Oct 22 01:01:34 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* configure.in: sort AC_CHECK_HEADERS() by alphabetical order.
-
-Thu Oct 22 00:19:07 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* random.c (init_randomseed): remove "initial" argument. It never
-	  be used from outside of this function.
-
-Thu Oct 22 00:12:33 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* lib/securerandom.rb (SecureRandom::gen_random): use /dev/urandom
-	  for initialize OpenSSL's rand.
-
-Wed Oct 21 12:10:04 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* 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.
-
-Wed Oct 21 09:04:09 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* 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.
-
-Wed Oct 21 08:23:36 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* 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.
-
-Sun Oct 18 17:26:53 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* 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.
-
-Mon Nov 30 18:46:44 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/readline/extconf.rb: call dir_config("libedit")
-	  if --enable-libedit is specified. [Bug #11751]
-	  patched by John Hein
-
-Mon Nov 30 08:44:29 2015  Eric Wong  <e@80x24.org>
-
-	* variable.c: remove spurious #define for globals
-	  [ruby-core:71735] [Feature #11749]
-
-Sun Nov 29 09:13:03 2015  Conor Landry  <clandry94@gmail.com>
-
-	* NEWS: [DOC] Various grammar corrections and clarifications to
-	  increase readability.  [Fix GH-1115]
-
-Sat Nov 28 19:33:55 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parser_here_document): store dispatched result of
-	  on_tstring_content at the last fragment of a here document.
-
-Fri Nov 27 19:19:44 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* 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
-
-Thu Nov 26 21:36:40 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (iseq_peephole_optimize): enable tail call
-	  optimization for specialized indexers.
-
-	* compile.c (iseq_compile_each): blockiseq should be NULL, but not
-	  Qnil.
-
-Thu Nov 26 17:22:53 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* regcomp.c, regenc.c, regexec.c, regint.h, enc/unicode.c:
-	  Merge Onigmo 58fa099ed1a34367de67fb3d06dd48d076839692
-	  + https://github.com/k-takata/Onigmo/pull/52
-
-Thu Nov 26 09:50:02 2015  yui-knk  <spiketeika@gmail.com>
-
-	* test/coverage/test_coverage.rb: Added test-case for Coverage.restart.
-	  [Misc #11732][ruby-dev:49379]
-
-Thu Nov 26 09:46:36 2015  yui-knk  <spiketeika@gmail.com>
-
-	* test/coverage/test_coverage.rb: Added test-case for Coverage.peek_result
-	  without Coverage.start. [Misc #11726][ruby-core:71622]
-
-Thu Nov 26 07:22:55 2015  Eric Wong  <e@80x24.org>
-
-	* test/openssl/test_ssl.rb (test_copy_stream): new test
-
-Wed Nov 25 21:23:39 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (copy_stream_body): try to_io conversion before read,
-	  readpartial, and write methods.  [ruby-dev:49008] [Bug #11199]
-
-Wed Nov 25 10:55:21 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* io.c (argf_getpartial): should not resize str if the second
-	  argument is not given.
-	  [ruby-core:71668] [Bug #11738]
-
-Tue Nov 24 23:56:25 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* configure.in: On Solaris, it is safe to define _LARGEFILE_SOURCE
-	  when _FILE_OFFSET_BITS=64 is defined (= when 32-bit compile).
-
-Tue Nov 24 10:00:10 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rubygems/installer.rb: Fix two double-word typos.
-	  [ci skip][fix GH-1108] Patch by @jwworth
-
-Tue Nov 24 09:17:02 2015  Alexander von Gluck IV  <kallisti5@unixzen.com>
-
-	* beos: Drop support for BeOS now that Haiku is stable.
-	  [Fix GH-1112]
-
-Tue Nov 24 09:16:35 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* internal.h (rb_gc_for_fd): move to export, as referred by
-	  ext/socket.
-
-Tue Nov 24 09:04:29 2015  David Rodriguez  <deivid.rodriguez@gmail.com>
-
-	* file.c: [DOC] add a missing period to File docs, to terminate
-	  the sentence and separate from the next sentence.  [Fix GH-1111]
-
-Tue Nov 24 08:30:06 2015  JuanitoFatas  <katehuang0320@gmail.com>
-
-	* NEWS: Fix the issue number of `Struct#dig`, which should be
-	  [Feature #11688].  [Fix GH-1110]
-
-Tue Nov 24 07:56:54 2015  Eric Wong  <e@80x24.org>
-
-	* ext/socket/init.c (rsock_s_accept): handle ENOMEM
-
-Tue Nov 24 07:50:15 2015  Eric Wong  <e@80x24.org>
-
-	* 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 Nov 24 06:46:27 2015  Eric Wong  <e@80x24.org>
-
-	* 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 Nov 24 05:13:35 2015  Eric Wong  <e@80x24.org>
-
-	* 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 Nov 23 19:53:12 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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 Nov 23 12:54:39 2015  Hamish Morrison  <hamishm53@gmail.com>
-
-	* configure.in: remove obsolete workarounds for Haiku.
-
-	* dln.c, file.c, io.c: remove obsolete Haiku workarounds.
-
-	* thread_pthread.c: add stack bounds detection for Haiku.
-
-	* signal.c: get stack pointer from signal context on Haiku.
-	  [ruby-core:67923] [Bug #10811] [Fix GH-1109]
-
-Mon Nov 23 11:44:11 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* gems/bundled_gems: bump version to minitest-5.8.3
-
-Mon Nov 23 08:55:00 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ChangeLog: fix wrong reference for r52714
-
-Sun Nov 22 22:23:37 2015  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* gc.c (rb_raw_obj_info): fix compile errors when USE_RGENGC
-	  is 0.
-
-Sun Nov 22 21:58:09 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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]
-
-Sun Nov 22 19:36:51 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/openssl/ossl.c: fix brew command for installation of openssl.
-	  [ci skip][fix GH-1107] Patch by @arthurnn
-
-Sun Nov 22 17:59:50 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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.
-
-Sun Nov 22 16:53:34 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (iseq_peephole_optimize): remove unreachable code
-	  chunk after jump/leave.
-
-	* parse.y: move dead code elimination of logical operation to
-	  compile.c.  not to warn logical operation of literal constants.
-
-Sun Nov 22 16:37:10 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (iseq_peephole_optimize): eliminate always/never
-	  branches after a literal object and when the value is used after
-	  the branch.
-
-Sun Nov 22 01:23:43 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* configure.in: Add -D_XOPEN_SOURCE=500 (or 600 or 700) on Solaris
-	  if available, mainly for enabling some features in sockets.
-
-Sun Nov 22 00:17:22 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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]
-
-Sat Nov 21 18:57:28 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (need_argument): move frozen-string-literal-debug option
-	  from --enable to --debug.  [Feature #11725]
-
-	* ruby.c (proc_options): fix pointer overrun. do not advance argv
-	  until it is valid.
-
-Sat Nov 21 13:59:09 2015  NARUSE, Yui  <naruse@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
-
-Sat Nov 21 13:31:52 2015  NARUSE, Yui  <naruse@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
-
-	* ext/digest/*/extconf.rb: remove ext/digest from include search path
-	  to avoid confusion of cl.exe.
-
-	* ext/digest/*/*.[ch]: explicitly specify def.h's path.
-
-Sat Nov 21 13:05:16 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/openssl/ossl.h: LibreSSL doesn't have and need e_os2.h.
-
-Sat Nov 21 09:18:10 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* 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/thread/test_queue.rb: catch up this fix.
-
-Sat Nov 21 08:44:21 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (iseq_compile_each): add debug information to NODE_STR
-	  strings as default.
-	  [Feature #11725]
-
-	* insns.def (freezestring): add new instruction to support adding
-	  debug information for dynamically constructed strings.
-
-	* compile.c (iseq_compile_each): support adding debug information
-	  for NODE_DSTR with freezestring instruction.
-
-	* 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.
-
-	* defs/id.def: ditto.
-
-	* test/ruby/test_rubyoptions.rb: catch up this fix.
-
-	* test/ruby/test_iseq.rb: now frozen strings are not same.
-
-Sat Nov 21 04:34:16 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* symbol.c (rb_str_intern): should not freeze the receiver itself
-	  unexpectedly.  [ruby-core:71611] [Bug #11721]
-
-Fri Nov 20 23:15:18 2015  Naotoshi Seo  <sonots@gmail.com>
-
-	* lib/logger.rb: expose logger mutex
-	  [fix GH-541] Patch by @arthurnn
-
-Fri Nov 20 15:05:28 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* Added missing reference of GitHub
-
-Fri Nov 20 14:57:01 2015  Trevor Rowe  <trevorrowe@gmail.com>
-
-	* 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.
-
-Fri Nov 20 14:39:56 2015  SHIBATA Hiroshi  <hsbt@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
-
-Fri Nov 20 12:53:19 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* array.c: clarify docs for take_while/drop_while samples.
-	  [ci skip][fix GH-1028] Patch by @leriksen
-
-Fri Nov 20 12:48:04 2015  SHIBATA Hiroshi  <hsbt@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
-
-Fri Nov 20 12:44:06 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rss/syndication.rb: Add nodoc marker for #validate_sy_updatePeriod.
-	  [ci skip][fix GH-1105] Patch by @davydovanton
-
-Fri Nov 20 09:05:21 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c (rb_vm_cref_replace_with_duplicated_cref): added.
-
-	  CREFs should not be shared by methods between `using'.
-	  [Bug #11247]
-
-	* vm_insnhelper.c (vm_cref_replace_with_duplicated_cref): ditto.
-
-	* vm.c (vm_cref_dup): should copy refinements correctly.
-
-	* eval.c: use rb_vm_cref_replace_with_duplicated_cref().
-
-	* eval_intern.h: add a decl. of
-	  rb_vm_cref_replace_with_duplicated_cref().
-
-	* vm_eval.c (eval_string_with_cref): do not need to pass
-	  scope's CREF because VM can find out CREF from stack frames.
-
-	* test/ruby/test_refinement.rb: add a test.
-
-Fri Nov 20 06:52:53 2015  Eric Wong  <e@80x24.org>
-
-	* .gitattributes: new file for git users
-	  [ruby-core:71578] [Feature #11713]
-
-Thu Nov 19 22:35:31 2015  Tanaka Akira  <akr@fsij.org>
-
-	* 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.
-
-Thu Nov 19 21:55:11 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (gc_start): force to invoke GC by GC.start
-	  even if it is GC.disable'd.
-
-	* test/ruby/test_gc.rb: add a test.
-
-Thu Nov 19 20:08:59 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c: trivial performance improvements.
-
-	    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
-
-	* gc.c (gc_writebarrier_generational): reorder parameters to optimize
-	  register passing function call.
-
-	* gc.c (gc_writebarrier_incremental): ditto.
-
-	* gc.c (rb_gc_writebarrier): remove LIKELY().
-	  LIKELY() seems to move related functions not better places.
-
-Thu Nov 19 19:45:05 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (ruby_prog_init): [DOC] ARGV does not contain the name of
-	  the executable.  [ruby-core:71561] [Bug #11711]
-
-Thu Nov 19 15:53:21 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* signal.c: should also clear ruby_disable_gc.
-	  [Bug #11692]
-
-Thu Nov 19 15:31:45 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (iseq_compile_each): T_IMEMO/iseq objects should be
-	  wrap with ISeq wrappers. [Bug #11676]
-
-Thu Nov 19 15:16:12 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rubygems: Update to RubyGems 2.5.0+ HEAD(c6b4946).
-	  this version includes #1114, #1314, #1322, #1375, #1383, #1387
-	* test/rubygems: ditto.
-
-Thu Nov 19 14:14:37 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (finish_overlapped_socket): return value of this
-	  function should be only 0 or SOCKET_ERROR.
-
-Thu Nov 19 14:12:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-Thu Nov 19 13:57:58 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (finish_overlapped_socket): ignore EMSGSIZE when input,
-	  because POSIX platforms just do so.  fixes test errors revealed by
-	  r52647.
-
-Thu Nov 19 02:52:30 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/socket/ancdata.c (bsock_recvmsg_internal): stretch the buffer size
-	  only when vmaxdatlen is nil.
-
-Thu Nov 19 02:20:11 2015  Tanaka Akira  <akr@fsij.org>
-
-	* 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]
-
-Thu Nov 19 01:48:05 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* configure.in: add -static-libgcc for mingw automatically if available.
-
-Thu Nov 19 00:53:26 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/extmk.rb (--extflags): new option to pass EXTLDFLAGS to children,
-	  especially exts.mk.
-
-	* common.mk (EXTMK_ARGS): use above option.
-
-Wed Nov 18 22:50:43 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_method.c (rb_class_clear_method_cache): should clear all
-	  RCLASS_CALLABLE_M_TBLs of all sub-classes (T_ICLASS).
-
-	  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.
-
-	  However, refinements create complex data structure. So that
-	  we need to clear all children (and descendants).
-	  [ruby-core:71423] [Bug #11672]
-
-	* 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.
-
-	* test/ruby/test_refinement.rb: enable disabled test.
-
-Wed Nov 18 21:09:08 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_method.c (prepare_callable_method_entry): use
-	  RCLASS_CALLABLE_M_TBL() instead of accessing a filed directly.
-
-Wed Nov 18 17:08:18 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: introduce the following field and macros.
-
-	  * rb_method_definition_t::complemented_count to count shared method
-	    entries because of complemented method entries and separate from
-	    alias_count.
-
-	    Shared `def' only by complemented method entries should not prevent
-	    method re-definition warning.
-
-	  * METHOD_ENTRY_COMPLEMENTED(me) to represent complemented method entry.
-	  * METHOD_ENTRY_COMPLEMENTED_SET(me) to check it as  complemented me.
-
-	* vm_insnhelper.c (aliased_callable_method_entry): should also
-	  check me->def->complemented_count.
-
-	* vm_method.c (method_definition_addref_complement): add to count
-	  complemented method entries number.
-
-	* vm_method.c (rb_method_definition_release): release `def' iff
-	  alias_count == 0 and complemented_count == 0.
-
-	* test/ruby/test_module.rb: add a test.
-
-Wed Nov 18 17:06:19 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (rb_raw_obj_info): fix trivial issues.
-
-	  * support SPECIAL_CONSTs.
-	  * fix IMEMO/ment outputs.
-
-Wed Nov 18 11:32:15 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-Wed Nov 18 10:33:06 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* 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.
-
-Wed Nov 18 10:12:36 2015  Eric Wong  <e@80x24.org>
-
-	* ext/socket/ancdata.c (bsock_recvmsg_internal): use 4096 as
-	  default size to match pre-r52610, which also maps to a common
-	  page size.
-
-Wed Nov 18 10:05:25 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* doc/syntax/refinements.rdoc: update documentation to reflect
-	  recent changes.
-	  [ci skip] [ruby-core:71466] [Misc #11681] Patch by James Adam
-
-Wed Nov 18 09:50:21 2015  Naotoshi Seo  <sonots@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]
-
-Wed Nov 18 06:59:52 2015  Eric Wong  <e@80x24.org>
-
-	* 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
-
-Tue Nov 17 19:50:06 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (fstat): declare for mingw.
-
-Tue Nov 17 19:02:59 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* configure.in (BASERUBY): use Kernel#print instead of Kernel#p because
-	  the baseruby may output CRLF as end of line.
-
-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]
-
-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]
-
-Tue Nov 17 14:36:00 2015  Kenichi Kamiya  <kachick1@gmail.com>
-
-	* lib/ostruct.rb (dig): Implement OpenStruct#dig
-	  [Feature #11688]
-
-Tue Nov 17 14:04:14 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/socket/lib/socket.rb (Socket#recvmsg{,_nonblock}): default values
-	  of clen must be nil.
-
-	* ext/socket/ancdata.c (bsock_sendmsg_internal): handle nil of clen.
-	  fixes test errors introduced at r52602.
-
-Tue Nov 17 13:43:46 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/socket/lib/socket.rb: UNIXSocket is not always exists.  fixes
-	  install error on Windows, introduced at r52601.
-
-Tue Nov 17 11:27:23 2015  Eric Wong  <e@80x24.org>
-
-	* 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]
-
-Tue Nov 17 11:25:05 2015  Eric Turner  <ericturnerdev@gmail.com>
-
-	* array.c (rb_ary_dig), hash.c (rb_hash_dig): [DOC] Update
-	  comments describing dig methods.  [Fix GH-1103]
-
-	* struct.c (rb_struct_dig): [DOC] add rdoc.
-
-Tue Nov 17 11:22:22 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
-	* NEWS: Small grammatical fix [ci skip]
-
-Tue Nov 17 10:12:30 2015  Eric Wong  <e@80x24.org>
-
-	* ext/socket/lib/socket.rb (Socket.accept_loop): avoid exceptions
-	  (Socket.udp_server_recv): ditto
-
-Tue Nov 17 09:59:00 2015  Eric Wong  <e@80x24.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
-
-Tue Nov 17 09:45:18 2015  Eric Wong  <e@80x24.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
-
-Tue Nov 17 08:36:34 2015  Eric Wong  <e@80x24.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
-
-Tue Nov 17 08:25:57 2015  Eric Wong  <e@80x24.org>
-
-	* 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
-
-Tue Nov 17 08:16:09 2015  Eric Wong  <e@80x24.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
-
-Mon Nov 16 21:27:54 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* test/dtrace/helper.rb (Dtrace::TestCase#trap_probe): dtrace buffer
-	  size is set as 8m on Solaris (default 4m). [Bug #11697]
-
-Mon Nov 16 20:03:14 2015  Naotoshi Seo  <sonots@gmail.com>
-
-	* lib/logger.rb: Add Logger#reopen
-
-Mon Nov 16 18:21:52 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (rb_obj_dig): dig in nested structs too.
-
-	* struct.c (rb_struct_dig): new method Struct#dig.
-	  [Feature #11688]
-
-Mon Nov 16 17:41:33 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (iseq_peephole_optimize): optimize tail calls on aref
-	  and aset specialized instructions.
-
-	* compile.c (iseq_peephole_optimize): optimize replaced leave
-	  instruction copied to jump instruction too.
-
-Mon Nov 16 16:39:38 2015  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/set.rb: Enable frozen_string_literal.
-
-	* lib/set.rb: Move << out of the begin block that ensures pop.
-
-Mon Nov 16 16:28:30 2015  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/set.rb (Hash#flatten!, #add?, #delete?, #collect!, #reject!,
-	  #select!, #^, #classify): Micro-optimize some methods for
-	  performance and readability.
-
-Mon Nov 16 16:17:58 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ChangeLog: fixed accidentally commit.
-
-Mon Nov 16 16:10:51 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* mkconfig.rb: Add some high-level documentation.
-	  [ci skip][fix GH-1081] Patch by @ulfalizer
-
-Mon Nov 16 15:59:14 2015  yui-knk  <spiketeika@gmail.com>
-
-	* proc.c: Add call-seq of `Method#super_method`
-	  [ci skip][fix GH-1094]
-
-Mon Nov 16 15:58:39 2015  Kenichi Kamiya  <kachick1@gmail.com>
-
-	* struct.c: Standardize a method signature of Struct#[]=.
-	  [ci skip][fix GH-1095]
-
-Mon Nov 16 15:42:36 2015  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/set.rb (#>=, #>, #<=, #<): Make use of Hash#>=, #>, #<, and
-	  #<= when comparing against an instance of the same kind.
-
-Mon Nov 16 15:37:11 2015  Naotoshi Seo  <sonots@gmail.com>
-
-	* lib/logger.rb: Support symbol and string log level setting
-
-Mon Nov 16 15:33:11 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* tool/rbinstall.rb: fix wrong permission for gem specification without
-	  zlib runtime. [Bug #11685][ruby-dev:49343]
-
-Mon Nov 16 12:11:11 2015  SHIBATA Hiroshi  <hsbt@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.
-
-Sun Nov 15 18:28:43 2015  Kenichi Kamiya  <kachick1@gmail.com>
-
-	* vm_method.c (set_method_visibility): should fail if the receiver
-	  is frozen.  [ruby-core:71489] [Bug #11687]
-
-Sat Nov 14 22:15:07 2015  Tanaka Akira  <akr@fsij.org>
-
-	* ext/socket/lib/socket.rb: Specify frozen_string_literal: true.
-
-Sat Nov 14 21:44:56 2015  Tanaka Akira  <akr@fsij.org>
-
-	* lib/time.rb: Use "<<" to reduce string allocation.
-
-Sat Nov 14 17:45:49 2015  Tanaka Akira  <akr@fsij.org>
-
-	* lib/tsort.rb: Specify frozen_string_literal: true.
-
-Sat Nov 14 17:25:15 2015  Tanaka Akira  <akr@fsij.org>
-
-	* lib/resolv-replace.rb: Specify frozen_string_literal: true.
-
-Sat Nov 14 17:00:13 2015  Tanaka Akira  <akr@fsij.org>
-
-	* lib/time.rb: Specify frozen_string_literal: true.
-
-Sat Nov 14 16:43:02 2015  Tanaka Akira  <akr@fsij.org>
-
-	* lib/open3.rb: Specify frozen_string_literal: true.
-
-Sat Nov 14 05:04:09 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* node.h: remove old comments.
-
-Sat Nov 14 04:55:36 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* refactoring CREF related code.
-
-	* eval_intern.h: remove unused setter functions.
-	  CREF_CLASS_SET()
-	  CREF_NEXT_SET()
-	  CREF_SCOPE_VISI_COPY()
-
-	* 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.
-
-	* vm.c (vm_cref_new): accept push_by_eval parameter.
-
-	* vm.c (vm_cref_new_use_prev): added for rb_vm_rewrite_cref().
-
-	* vm_insnhelper.c (vm_cref_push): accept pushed_by_eval parameter.
-
-	* vm_insnhelper.h: remove unused macros:
-	  COPY_CREF_OMOD() and COPY_CREF().
-
-	* vm_eval.c, insns.def: catch up this fix.
-
-Sat Nov 14 02:58:03 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c (vm_define_method): refactoring.
-	  * get CREF in this function.
-	  * cbase is no longer needed (CREF_CLASS(cref) is enough).
-
-	* compile.c: RubyVM::FrozenCore.define_method only accept 2 args.
-
-Sat Nov 14 02:34:43 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* 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]
-
-	* vm_method.c (rb_scope_module_func_check): check CREF in env or me.
-	  if CREF is contained by `me', then return FALSE.
-
-	* test/ruby/test_method.rb: add a test.
-
-Sat Nov 14 02:19:16 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: constify rb_cref_t::scope_visi;
-
-	* eval_intern.h (CREF_SCOPE_VISI_COPY): catch up this fix.
-
-	* vm_method.c: ditto.
-
-Sat Nov 14 01:53:52 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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]
-
-Fri Nov 13 23:00:23 2015  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* configure.in: unset LD_PRELOAD on mingw. msys2 child processes
-	  crash at make test-all with LD_PRELOAD.
-	  [ruby-core:71461] [Bug #11680]
-
-Fri Nov 13 14:00:43 2015  Zachary Scott  <zzak@ruby-lang.org>
-
-	* ext/openssl/ossl_pkey.c: Merge ruby/openssl@b9ea8ef [Bug #10735]
-
-Fri Nov 13 13:09:16 2015  Zachary Scott  <zzak@ruby-lang.org>
-
-	* ext/openssl/ossl_ssl.c: Merge ruby/openssl@81e1a30
-
-	* test/openssl/test_ssl.rb: ditto
-
-Fri Nov 13 13:05:37 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* prelude.rb (Thread.exclusive): warn as deprecated.
-
-Fri Nov 13 10:36:39 2015  Victor Nawothnig  <Victor.Nawothnig@gmail.com>
-
-	* parse.y (new_unless): optimize constant condition for `unless`
-	  as well as `if`.  [Fix GH-1092]
-
-Fri Nov 13 10:08:41 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/psych/psych.gemspec: bump version to 2.0.15
-
-Thu Nov 12 18:44:26 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parser_magic_comment): should match exactly.
-	  [ruby-core:71460] [Bug #11679]
-
-Thu Nov 12 16:16:20 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* template/prelude.c.tmpl: enable tail call optimization.
-
-Thu Nov 12 14:17:01 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-Thu Nov 12 13:49:50 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rubygems: Update to RubyGems 2.5.0+ HEAD(db78980).
-	  this version includes #1367 , #1373 , #1375
-	* test/rubygems: ditto.
-
-Thu Nov 12 10:53:41 2015  Eric Wong  <e@80x24.org>
-
-	* 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]
-
-Wed Nov 11 18:30:28 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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]
-
-Wed Nov 11 17:38:24 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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]
-
-Wed Nov 11 14:14:33 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* transcode.c: fix a typo
-	[ci skip][fix GH-1091] Patch by @jwworth
-
-Wed Nov 11 11:58:38 2015  Shugo Maeda  <shugo@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]
-
-	* lib/net/ftp.rb (default_passive=, default_passive): new methods.
-
-Wed Nov 11 09:03:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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 Nov 10 20:35:12 2015  Tanaka Akira  <akr@fsij.org>
-
-	* lib/open-uri.rb: Remove indicator for "frozen_string_literal: true".
-
-	* lib/pp.rb: Ditto.
-
-	* lib/prettyprint.rb: Ditto.
-
-	* lib/resolv.rb: Ditto.
-
-	* lib/securerandom.rb: Ditto.
-
-	* lib/tmpdir.rb: Ditto.
-
-	* lib/unicode_normalize/tables.rb: Ditto.
-
-	* test/net/ftp/test_buffered_socket.rb: Ditto.
-
-	* test/net/ftp/test_mlsx_entry.rb: Ditto.
-
-	* test/open-uri/test_open-uri.rb: Ditto.
-
-	* test/open-uri/test_ssl.rb: Ditto.
-
-	* test/pathname/test_pathname.rb: Ditto.
-
-	* test/test_pp.rb: Ditto.
-
-	* test/test_prettyprint.rb: Ditto.
-
-	* tool/transcode-tblgen.rb: Ditto.
-
-	* ext/pathname/lib/pathname.rb: Ditto.
-
-Tue Nov 10 18:42:24 2015  Aleksandrs Ledovskis  <aleksandrs@ledovskis.lv>
-
-	* defs/id.def, parse.y: Switch internal token name to reflect
-	  current form of safe-call operator.  [Fix GH-1090]
-
-Tue Nov 10 18:25:56 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (rb_hash_to_proc): use rb_func_proc_new to make light
-	  weight proc.  [Feature #11653]
-
-Tue Nov 10 18:23:35 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* proc.c (cfunc_proc_t): add room for me.
-
-	* proc.c (cfunc_proc_new): generalise for cfunc proc without env.
-
-	* proc.c (rb_func_proc_new, rb_func_lambda_new): new functions to
-	  make proc/lambda without env from cfunc.
-
-Tue Nov 10 17:32:35 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* bootstraptest/test_fork.rb ([ruby-dev:37934]): :NPROC (RLIMIT_NPROC)
-	  is not supported on some platforms (e.g. Solaris 10).
-
-Tue Nov 10 16:57:14 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (rb_hash_to_proc): new method Hash#to_proc.
-	  [Feature #11653]
-
-Tue Nov 10 14:34:09 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* time.c (rb_time_timespec_new): swap utc and localtime
-	  to generate gmt flag by INT_MAX - gmtoff.
-
-Tue Nov 10 14:01:59 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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]
-
-Tue Nov 10 11:25:29 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* time.c (rb_timespec_now): added.  [Feature #11558]
-
-	* time.c (rb_time_timespec_new): added.  [Feature #11558]
-
-Tue Nov 10 06:17:17 2015  Eric Wong  <e@80x24.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]
-
-Tue Nov 10 00:36:46 2015  Tanaka Akira  <akr@fsij.org>
-
-	* lib/resolv.rb (Resolv::DNS::Message::MessageEncoder#put_labels):
-	  Prevent overflow of pointer to labels.
-	  Patch by Hannes Georg.  [ruby-core:71248] [Bug #11632]
-
-Tue Nov 10 00:25:41 2015  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* gems/bundled_gems: update to power_assert 0.2.6.
-
-Mon Nov  9 21:48:17 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_eval.c (rb_check_funcall_default): split from
-	  rb_check_funcall to return the given fallback value.
-
-	* object.c (rb_obj_dig): use rb_check_funcall_default so that tail
-	  call optimization will be possible.  [Feature #11643]
-
-Mon Nov  9 21:27:23 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* array.c (rb_ary_dig): new method Array#dig.
-
-	* hash.c (rb_hash_dig): new method Hash#dig.
-
-	* object.c (rb_obj_dig): dig in nested arrays/hashes.
-	  [Feature #11643]
-
-Mon Nov  9 18:00:47 2015  Yuki Nishijima  <mail@yukinishijima.net>
-
-	* gems/bundled_gems: Upgrade the did_you_mean gem to 1.0.0.beta3
-
-Mon Nov  9 17:38:14 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/runner.rb: use official repository for coverage tool.
-	* Makefile.in: ditto.
-	* common.mk: ditto.
-	* .gitignore: ignored third party repositories.
-
-Mon Nov  9 17:29:09 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* compile.c (iseq_compile_each): Dynamic string literals should be
-	  frozen.
-	  [ruby-core:57574] [Feature #8976]
-
-Mon Nov  9 15:56:07 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* common.mk: Use ruby organization url for simplecov repository.
-
-Sun Nov  8 16:24:09 2015  Masaki Matsushita <glass.saga@gmail.com>
-
-	* NEWS: describe addition of File::TMPFILE
-
-Sun Nov  8 15:19:17 2015  Masaki Matsushita <glass.saga@gmail.com>
-
-	* file.c: Add O_TMPFILE.
-
-Sun Nov  8 14:24:43 2015  windwiny  <windwiny.ubt@gmail.com>
-
-	* method.h (METHOD_ENTRY_{VISI,BASIC,FLAGS}_SET): suppress
-	  shift-op-parentheses warnings.  [Fix GH-1082]
-
-Sun Nov  8 14:01:22 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/psych/psych_emitter.c: backport 5bd7744 from tenderlove/psych.
-	  support backward compatibility of Ruby 2.0
-
-Sun Nov  8 10:55:10 2015  Anton Davydov  <antondavydov.o@gmail.com>
-
-	* io.c (rb_io_gets_m): Update IO#gets doc for characters more than
-	  1 byte.  [Fix GH-1085]
-
-Sun Nov  8 10:37:58 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/uri/ftp.rb: fix a typo.
-	  [fix GH-1084][ci skip] Patch by @windwiny
-
-Sun Nov  8 08:10:31 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_trace.c (exec_hooks_precheck): check need_clean everytime
-	  to clean-up unused hooks.
-
-	* vm_trace.c (list->need_clean): use as boolean value.
-
-Sun Nov  8 01:31:27 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/net/http.rb (Net::HTTP#initialize):
-	  default value of Net::HTTP#open_timeout is now 60 (was nil).
-
-Sat Nov  7 12:18:05 2015  Eric Wong  <e@80x24.org>
-
-	* 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
-
-Sat Nov  7 11:40:05 2015  Eric Wong  <e@80x24.org>
-
-	* thread.c (rb_cThreadShield): make static
-
-Sat Nov  7 09:51:38 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_trace.c (rb_threadptr_exec_event_hooks_orig):
-	  maintain trace_running counter on internal events.
-
-	  This patch is made by Takashi Kokubun <takashikkbn@gmail.com>.
-	  [Bug #11603] https://github.com/ruby/ruby/pull/1059
-
-Sat Nov  7 03:32:27 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* include/ruby/ruby.h (RSTRUCT_PTR): need a close parenthesis.
-
-Sat Nov  7 01:32:06 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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).
-
-	* configure.in: checks for DIR.d_fd and DIR.dd_fd on Solaris 10.
-
-Fri Nov  6 23:13:53 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
-
-	* array.c: clarifies Array#reject! documentation.
-	  [fix GH-894][ci skip] Patch by @GxSplinter
-
-Fri Nov  6 20:18:25 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/runner.rb: extracted test helper.
-	* test/lib/zombie_hunter.rb: ditto.
-
-Fri Nov  6 18:07:47 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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.
-
-Fri Nov  6 12:39:21 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* defs/id.def (token_ops), parse.y (parser_yylex): change DOTQ
-	  from ".?" to "&.".  [ruby-core:71363] [Feature #11537]
-
-Fri Nov  6 09:01:26 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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]
-
-Fri Nov  6 06:59:37 2015  Eric Wong  <e@80x24.org>
-
-	* test/ruby/test_autoload: hoist out ruby_impl_require
-
-Thu Nov  5 13:03:58 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* defs/id.def (token_ops): gather associations between IDs,
-	  operators, and parser tokens.
-
-Thu Nov  5 10:17:17 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/socket/socket.c (make_addrinfo): use RARRAY_ASET for
-	  write-barrier.
-
-	* ext/tk/tcltklib.c ({call,eval,invoke}_queue_handler): ditto.
-
-	* ext/tk/tkutil/tkutil.c (ary2list, ary2list2): ditto.
-
-Thu Nov  5 10:09:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/**/*.c: prefer RARRAY_AREF to indexing RARRAY_CONST_PTR.
-	  pointed out by hanmac.
-	  https://github.com/ruby/ruby/commit/3553a86#commitcomment-14187670
-
-Wed Nov  4 17:33:24 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/debug.rb: Add documentation for #thread_list_all.
-	  [Misc #11580][ci skip]
-
-Wed Nov  4 15:45:59 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* class.c: fix documentation for rb_define_class{_id}_under.
-	  [fix GH-991][ci skip] Patch by @kachick
-
-Wed Nov  4 15:40:45 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* method.h: fix typo. Patch by @davydovanton
-	  [fix GH-1076][ci skip]
-
-Wed Nov  4 15:39:32 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* hash.c: use correct grammar. Patch by @tveastman
-	  [fix GH-1079][ci skip]
-
-Wed Nov  4 11:38:23 2015  Jake Worth  <jakeworth82@gmail.com>
-
-	* process.c (proc_getsid): [DOC] Fix double word 'for' and typo.
-	  [Fix GH-1080]
-
-Wed Nov  4 06:01:52 2015  Eric Wong  <e@80x24.org>
-
-	* include/ruby/ruby.h (struct RObject): hide iv_index_tbl type
-	  [ruby-core:71306] [Feature #11647]
-
-Tue Nov  3 06:48:58 2015  Eric Wong  <e@80x24.org>
-
-	* variable.c (find_class_path): remove cast for rb_class_ivar_set
-	  (rb_ivar_set): ditto
-	  (rb_cvar_set): ditto
-
-Tue Nov  3 06:18:21 2015  Eric Wong  <e@80x24.org>
-
-	* variable.c (rb_global_tbl): convert to id_table
-
-Tue Nov  3 01:58:46 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* parse.y (NO_QCALL): fix type mismatch of operands that causes
-	  compile error with Oracle Solaris Studio on Solaris.
-	  [Bug #11645] [ruby-dev:49327]
-
-Sun Nov  1 17:14:36 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* id_table.c (mix_id_table_insert): do not touch list during
-	  list->hash transition because GC can run during transition.
-
-Sun Nov  1 11:07:31 2015  Eric Wong  <e@80x24.org>
-
-	* iseq.c (iseq_memsize): account for rb_call_cache entries
-
-Sun Nov  1 09:12:10 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parser_yylex): ':' separated by a comment and a newline
-	  is not valid as symbol.
-
-Sat Oct 31 20:15:48 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/openssl/test_pair.rb: skipped tests if openssl doesn't support
-	  ECDH cipher.
-
-Sat Oct 31 14:58:10 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* man/ruby.1 (SYNOPSIS): remove extraneous space for -F option as
-	  it does not allow spaces before its argument.
-	  [ruby-core:71283] [Bug #11641]
-
-Sat Oct 31 14:58:01 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* man/ruby.1 (SYNOPSIS): remove extraneous space for -F option as
-	  it does not allow spaces before its argument.
-	  [ruby-core:71283] [Bug #11641]
-
-Sat Oct 31 10:22:49 2015  yui-knk  <spiketeika@gmail.com>
-
-	* 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]
-
-Fri Oct 30 21:12:45 2015  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* gems/bundled_gems: update to power_assert 0.2.5.
-
-Fri Oct 30 19:29:52 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (newobj_slowpath): do not need to use flags hack (commit miss).
-
-Fri Oct 30 19:08:48 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (heap_get_freeobj_from_next_freepage): not so UNLIKELY.
-
-Fri Oct 30 18:09:51 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (newobj_slowpath): reduce 1 parameter to use only registers
-	  for performance.
-
-	  On my laptop, 'N.times{x = []}' (where N = 29_000_000) is
-	  1.86 sec -> 1.74 sec.
-
-Fri Oct 30 12:53:21 2015  yui-knk  <spiketeika@gmail.com>
-
-	* test/ruby/test_call.rb: added test for safe navigation operator.
-	  [fix GH-1066]
-
-Fri Oct 30 12:47:34 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ChangeLog: fix wrong commit name.
-
-Fri Oct 30 12:36:16 2015  yui-knk  <spiketeika@gmail.com>
-
-	* 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]
-
-Fri Oct 30 12:06:59 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* variable.c (rb_class_ivar_set): rename as class specific ivar
-	  setter, and st_table is no longer involved.
-
-Fri Oct 30 11:36:33 2015  Eric Wong  <e@80x24.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
-
-Fri Oct 30 10:37:56 2015  Eric Wong  <e@80x24.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
-
-Fri Oct 30 09:57:22 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* gems/bundled_gems: update latest gems.
-	  test-unit-3.1.5 and minitest-5.8.2
-
-Fri Oct 30 09:54:05 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.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.
-
-Fri Oct 30 07:38:29 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* insns.def (getinlinecache/setinlinecache): compare ic->ic_cref and
-	  current cref only when cached CREF list includes singleton class.
-
-	  Singleton classes have own namespaces, so that we need to check
-	  cref as a key (#10943).
-
-	  However, if current CREF list does not include singleton class,
-	  no need to check CREF because it should be same name space.
-
-	* vm_insnhelper.c (vm_get_const_key_cref): add a function returns
-	  CREF only when it includes singleton class.
-
-	* vm_core.h: constify iseq_inline_cache_entry::ic_cref.
-
-Fri Oct 30 06:43:50 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_env_cref): make it inline for performance.
-
-	* vm_insnhelper.c (rb_vm_get_cref): use NULL instead of 0.
-
-Fri Oct 30 06:20:40 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* insns.def: nobody set ic->ic_value.value to Qundef.
-
-Fri Oct 30 06:15:50 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c: add ifndef guard for VM_CHECK_MODE.
-
-Fri Oct 30 06:13:10 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_check_frame_detail): should require me for
-	  VM_FRAME_FLAG_BMETHOD type frame.
-
-Thu Oct 29 18:42:30 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (gc_mark_ptr): specify NOINLINE so that gc_mark() can return
-	  immediately when obj is not a markable object.
-
-Thu Oct 29 18:05:22 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* encoding.c (rb_enc_check_str): add for performance.
-	  This function only accepts T_STRING (and T_REGEXP).
-
-	  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
-
-	* encoding.c: add ENC_DEBUG and ENC_ASSERT() macros.
-
-	* internal.h: add a decl. of rb_enc_check_str().
-
-	* string.c (rb_str_plus): use rb_enc_check_str().
-
-	* string.c (rb_str_subpat_set): ditto.
-
-Thu Oct 29 17:16:40 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* internal.h: export rb_wb_(un)protected_newobj_of()
-	  because some extensions include internal.h.
-
-Thu Oct 29 16:42:19 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (rb_imemo_new): should not pass FL_WB_PROTECTED flag.
-
-	* gc.c (rb_wb_protected_newobj_of): add more assertions.
-
-	* gc.c (rb_wb_unprotected_newobj_of): ditto.
-
-Thu Oct 29 16:20:26 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c: introduce rb_wb_unprotected_newobj_of() and
-	  rb_wb_protected_newobj_of(), pass the WB_PROTECTED
-	  information explicitly.
-
-	* internal.h: use introduced functions by NEWOBJ_OF().
-	  `flag' is immediate value, so that C compilers can
-	  solve them at compile time.
-
-	* include/ruby/ruby.h: add a comment about that.
-
-Thu Oct 29 14:52:03 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c: add rb_objspace::flags::has_hook to represent hook availability.
-
-	* gc.c: add gc_event_hook_available_p(objspace) to check that flag.
-
-	* 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.
-
-	* gc.c (newobj_init): add UNLIKELY() for FL_WB_PROTECTED flag.
-
-	* gc.c (newobj_init): change parameters order (trivial change).
-
-Thu Oct 29 14:45:15 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_core.h (rb_thread_struct): move forward declarations before
-	  used.
-
-Thu Oct 29 14:07:54 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (gc_mark_ptr): remove debug code for #11244.
-
-Thu Oct 29 10:08:33 2015  Eric Wong  <e@80x24.org>
-
-	* 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
-
-Thu Oct 29 08:48:05 2015  Eric Wong  <e@80x24.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]
-
-Wed Oct 29 00:39:50 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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]
-
-Wed Oct 28 23:52:48 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* probes_helper.h (RUBY_DTRACE_HOOK): add RB_GC_GUARD, though paranoic.
-
-Wed Oct 28 15:36:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (rb_name_err_new): store the receiver directly.
-
-	* error.c (name_err_receiver): return directly stored receiver.
-	  [Feature #10881]
-
-	* error.c (name_err_mesg_to_str): quote the name if unprintable.
-
-	* object.c (check_setter_id): use rb_check_id to convert names.
-
-	* variable.c (uninitialized_constant): use NameError::message to
-	  keep the receiver of uninitialized constant.  [Feature #10881]
-
-	* error.c (rb_name_err_new): new function to create NameError
-	  exception instance.  [Feature #10881]
-
-Wed Oct 28 13:29:39 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (new_attr_op_assign): fix op_assign type, which is
-	  already an ID since r52284.  [Feature #11537]
-
-Tue Oct 27 23:14:14 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* defs/id.def: enable anonymous IDs not to expose internal IDs for
-	  frozen-string-literal-debug by Marshal.dump.
-
-Tue Oct 27 17:06:55 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* defs/id.def: move internal IDs for frozen-string-literal-debug.
-
-Tue Oct 27 16:41:05 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-Tue Oct 27 16:18:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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]
-
-Tue Oct 27 16:12:37 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* 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
-
-Tue Oct 27 12:00:33 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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]
-
-Mon Oct 26 22:43:03 2015  yui-knk  <spiketeika@gmail.com>
-
-	* 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]
-
-Mon Oct 26 22:23:30 2015  SimonDKnight  <simondknight@hotmail.com>
-
-	* lib/racc/rdoc/grammar.en.rdoc: Grammatical errors fixed.
-	  [Fix GH-1070]
-
-Mon Oct 26 18:36:43 2015  Shota Fukumori (sora_h) <her@sorah.jp>
-
-	* vm_method.c(rb_method_entry_make):
-	  [DOC] [ci skip] Remove a needless space from comment
-	  [Fixes GH-1069] Patch by @yui-knk
-
-Mon Oct 26 17:30:13 2015  Ryan Hosford  <tad.hosford@gmail.com>
-
-	* lib/fileutils.rb: rename tailing to trailing.
-	  [Misc #11548]
-
-Mon Oct 26 17:11:53 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (call_op, call_op2): fix values on ripper.  [Feature #11537]
-
-Mon Oct 26 12:55:06 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (call_op2): separate from call_op and also allow "::",
-	  while dot_or_colon should not allow ".?".  [Feature #11537]
-
-Mon Oct 26 01:03:23 2015  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* thread_pthread.c: fix compile errors when
-	  USE_SLEEPY_TIMER_THREAD is disabled.
-
-Sun Oct 25 10:12:05 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* symbol.c (op_tbl): add DOTQ for ripper.  [Feature #11537]
-
-Sat Oct 24 22:51:18 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* 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.
-
-Sat Oct 24 21:16:53 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/fileutils/test_fileutils.rb (test_uptodate): relax error
-	  message format.  [Feature #9025], [ruby-core:71178] [Bug #11617]
-
-Sat Oct 24 21:06:43 2015  Shota Fukumori (sora_h)  <her@sorah.jp>
-
-	* lib/mkmf.rb: Revert r45640 because it may lead to link
-	  with different libruby. [Bug #9760]
-
-Sat Oct 24 15:42:20 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bootstraptest/test_method.rb: relax error message format.
-
-	* test/ruby/test_arity.rb (err_mess): ditto.
-	  [Feature #9025], [ruby-core:71178] [Bug #11617]
-
-Sat Oct 24 12:47:47 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* vm_insnhelper.c: improved error message for "wrong number
-	  of arguments", distinguishing given and expected argument
-	  numbers clearly. [Feature #9025]
-
-Sat Oct 24 11:57:59 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_insnhelper.c: remove the typedef redeclaration of
-	  vm_call_handler.
-
-Sat Oct 24 07:29:12 2015  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]
-
-Sat Oct 24 04:10:13 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.c (make_compile_option_value): include frozen_string_literal*
-	  in a made option value.
-
-	* vm_opts.h: forgot to add OPT_FROZEN_STRING_LITERAL_DEBUG
-	  at last commit.
-
-Sat Oct 24 03:58:02 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* 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)
-
-	* iseq.h: add compile option frozen_string_literal_debug.
-
-	* compile.c: catch up this fix.
-
-	* error.c (rb_error_frozen): ditto.
-
-	* iseq.c (set_compile_option_from_hash): ditto.
-
-	* test/ruby/test_rubyoptions.rb: add a test for this fix.
-
-Sat Oct 24 02:02:24 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c: introduce new call handler for simple ISeqs.
-
-	  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).
-
-	  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.
-
-	  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.
-
-	  These functions creates fast method dispatch by inlining
-	  vm_push_frame() with immediate params/locals sizes.
-
-	  On my laptop, we can have the following results.
-
-	  vm2_method*       1.083 (8.3% faster)
-	  vm2_poly_method*  0.961 (3.4% slower)
-
-	  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.
-
-	* common.mk: add a rule for vm_call_iseq_optimized.inc.
-
-	* tool/mk_call_iseq_optimized.rb: added.
-
-	* vm.c: include vm_call_iseq_optimized.inc.
-
-Sat Oct 24 01:58:50 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: define vm_call_handler.
-
-Sat Oct 24 01:56:01 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h, vm_insnhelper.h: move definition of VMDEBUG
-	  from vm_insnhelper.h to vm_core.h.
-
-Sat Oct 24 01:51:01 2015  Akinori MUSHA  <knu@iDaemons.org>
-
-	* NEWS: [DOC] In the new safe call syntax, arguments are evaluated
-	  only if a call is made.
-
-	* doc/syntax/calling_methods.rdoc: Fix a typo.
-
-Sat Oct 24 00:38:34 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* 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]
-
-Fri Oct 23 21:10:37 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (name_err_mesg_to_str): separate class names from the
-	  receiver description.
-
-	* vm_eval.c (make_no_method_exception, raise_method_missing): add
-	  format specifiers for class names.
-
-Fri Oct 23 18:10:32 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* .gitignore: ignored environmental wrapper files.
-
-Fri Oct 23 17:55:29 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* 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
-
-Fri Oct 23 16:35:08 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/ipaddr.rb, test/test_ipaddr.rb: Reject invalid address contained
-	  EOL string. Patch by @kachick [fix GH-942][Bug #11513]
-
-Fri Oct 23 16:03:26 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.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
-
-Fri Oct 23 15:46:09 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* string.c: Added method signature to include hash. It's inconsistency
-	  with `gsub` method signature.
-	  [ci skip][fix GH-1023] Patch by @danielevans
-
-Fri Oct 23 15:25:51 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/imap.rb: remove an empty comment line and -*-.
-
-Fri Oct 23 15:20:02 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (gettextfile, getbinaryfile): use the safe
-	  navigation operator.
-
-Fri Oct 23 13:51:33 2015  yui-knk  <spiketeika@gmail.com>
-
-	* 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`
-
-Fri Oct 23 11:58:21 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (iseq_peephole_optimize): optimize lengthy safe
-	  navigation method chain.  [Feature #11537]
-
-Fri Oct 23 10:58:41 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/matrix/eigenvalue_decomposition.rb (tridiagonalize): fix
-	  indentation to avoid a warning when the command line option -w of
-	  ruby is specified.
-
-	* 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.
-
-Fri Oct 23 10:49:36 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (iseq_compile_each): support safe navigation of simple
-	  attribute assignment.  [Feature #11537]
-
-	* parse.y (mlhs_node, lhs, attrset_gen): ditto.  keep mid
-	  non-attrset as the sign of safe navigation.
-
-Fri Oct 23 07:17:11 2015  Eric Wong  <e@80x24.org>
-
-	* test/io/wait/test_io_wait.rb (test_wait_eof): test return value
-
-Fri Oct 23 00:32:02 2015  NARUSE, Yui  <naruse@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>
-
-Fri Oct 23 00:49:45 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* 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>
-
-	* string.c (rb_str_tr): [DOC] Escape backslash in String#tr
-	  documentation.  [Fix GH-1063]
-
-Fri Oct 23 00:19:04 2015  yui-knk  <spiketeika@gmail.com>
-
-	* array.c (rb_ary_collect): [DOC] Fix space of code example of
-	  Array#map.  [Fix GH-1062]
-
-Thu Oct 22 18:52:53 2015  Akinori MUSHA  <knu@iDaemons.org>
-
-	* 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]
-
-Thu Oct 22 18:25:10 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/imap.rb (idle): add a new argument timeout for keep-alive.
-	  [ruby-core:63693] [Bug #10031]
-
-Thu Oct 22 15:30:08 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (iseq_peephole_optimize): peephole optimization for
-	  branchnil jumps.
-
-	* compile.c (iseq_compile_each): generate save navigation operator
-	  code.
-
-	* insns.def (branchnil): new opcode to pop the tos and branch if
-	  it is nil.
-
-	* parse.y (NEW_QCALL, call_op, parser_yylex): parse token '.?'.
-	  [Feature #11537]
-
-Thu Oct 22 13:16:19 2015  Guilherme Reis Campos  <guilhermekbsa@gmail.com>
-
-	* 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]
-
-Thu Oct 22 13:13:49 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (argf_next_argv): check ARGV element type, and try
-	  conversion if necessary.  [ruby-core:71140] [Bug #11610]
-
-Thu Oct 22 11:11:16 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* test/net/ftp/test_ftp.rb: add tests for getbinaryfile and
-	  gettextfile.
-
-Wed Oct 21 18:34:06 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parser_magic_comment): allow a sole magic comment without
-	  indicators, neither other non-space comments.  [Feature #8976]
-
-Tue Oct 20 12:17:56 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/prime.rb: Add basic argument checking to Prime.prime?
-	  [Bug #11606]
-
-Tue Oct 20 12:17:50 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/prime.rb: Optimize Integer#prime?
-	  Patch by Nick Slocum [Bug #10354]
-
-Tue Oct 20 08:12:47 2015  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* configure.in: pthread_getattr_np is broken on AIX.
-	  More specifically, the stack address and size returned are
-	  not correct.
-
-Tue Oct 20 05:54:46 2015  Eric Wong  <e@80x24.org>
-
-	* ext/fiddle/closure.c (callback): static function
-
-Mon Oct 19 10:33:46 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/socket/init.c (rsock_raise_socket_error): get rid of a glibc
-	  bug.  [ruby-core:71100] [Bug #11600]
-
-Mon Oct 19 01:26:26 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* file.c (rb_file_identical_p): not necessary to compare the paths after
-	  comparing the file indexes on Windows.  designate by kosaki.
-
-Sun Oct 18 21:17:27 2015  Tanaka Akira  <akr@fsij.org>
-
-	* lib/open-uri.rb: Specify frozen_string_literal: true.
-
-Sun Oct 18 14:37:56 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* random.c (fill_random_bytes_urandom): add a comment why using
-	  O_NONBLOCK and O_NOCTTY.
-
-Sun Oct 18 13:24:17 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* random.c (fill_random_bytes_syscall): use ATOMIC_SET() for
-	  updating try_syscall.
-
-Sun Oct 18 13:03:52 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* include/ruby/backward/util.h: Good-by Borland-C.
-
-Sun Oct 18 13:03:09 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* common.mk: add a comment how to use "make test-all"
-
-Sun Oct 18 12:59:22 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* common.mk: add comments how to use "make benchmark"
-
-Sun Oct 18 12:58:15 2015  Tanaka Akira  <akr@fsij.org>
-
-	* lib/securerandom.rb: Specify frozen_string_literal: true.
-
-Sun Oct 18 11:22:52 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* dln.c: remove defined(__WATCOMC__).
-
-Sun Oct 18 11:16:33 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* lib/mkmf.rb: Good-by Borland-C.
-
-Sun Oct 18 11:04:36 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* 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.
-
-Sun Oct 18 10:54:52 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* dln.c: simplify #ifdef. _WIN32 and __CYGWIN__ are exclusive.
-	  see include/ruby/defines.h
-	* gc.c: ditto.
-	* ext/sdbm/_sdbm.c: ditto.
-
-Sun Oct 18 10:42:19 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* ruby.c (open_load_file): add a comment.
-
-Sun Oct 18 10:12:46 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* file.c (rb_file_identical_p): simplify ifdefs
-
-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.
-	* lib/mkmf.rb: ditto.
-	* missing/os2.c: ditto.
-	* process.c: ditto.
-	* ruby.c: ditto.
-	* NEWS: announce OS/2 is no longer supported.
-
-Sun Oct 18 08:50:15 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* include/ruby/defines.h (DOSISH): add comments.
-
-Sun Oct 18 08:26:51 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* 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
-
-Sun Oct 18 09:32:58 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* file.c (ruby_is_fd_loadable): this should be fail if st_mode is
-	  not regular file nor FIFO.
-
-Sun Oct 18 09:20:17 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* ruby.c (open_load_file): use rb_thread_wait_fd() instead of reopen.
-
-Sun Oct 18 05:11:22 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* 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]
-
-	* ruby.c (loadopen_func): new for the above.
-
-	* 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()
-
-	* common.mk: now, ruby.o depend on thread.h.
-
-	* test/ruby/test_require.rb
-	(TestRequire#test_loading_fifo_threading_success): new test.
-	  This test successful case that loading from FIFO.
-
-	* 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.
-
-Sat Oct 17 13:55:32 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_file_expand_path_internal): concatenate converted
-	  string to the result instead of making converted string and
-	  append it.
-
-	* string.c (rb_str_cat_conv_enc_opts): from rb_str_conv_enc_opts,
-	  separate function to concatenate with transcoding.
-
-Sat Oct 17 13:19:10 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-Sat Oct 17 05:28:32 2015  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* 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]
-
-Fri Oct 16 15:54:37 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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]
-
-	* ruby.c (load_file_internal): ditto.
-
-Thu Oct 15 23:56:03 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* proc.c (rb_sym_to_proc): make void env.
-
-Thu Oct 15 13:37:23 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* proc.c (rb_sym_to_proc): move from string.c and create a Proc
-	  with no environments.  [ruby-core:71088] [Bug #11594]
-
-Thu Oct 15 01:57:03 2015  CHIKANAGA Tomoyuki  <nagachika@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]
-
-Thu Oct 15 01:53:38 2015  Benoit Daloze  <eregontp@gmail.com>
-
-	* test/ostruct/test_ostruct.rb: Add tests for OpenStruct#respond_to.
-	  Patch by @jeremy in [GH-1041]: https://github.com/ruby/ruby/pull/1041
-
-Thu Oct 15 01:49:25 2015  Benoit Daloze  <eregontp@gmail.com>
-
-	* 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
-
-Wed Oct 14 16:56:50 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in: check for libunwind.h, which is not available in
-	  very old OS X SDK.  [ruby-core:71080] [Bug #11591]
-
-Wed Oct 14 14:11:42 2015  Brian Black  <bblack@veracode.com>
-
-	* 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]
-
-Wed Oct 14 13:58:44 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parser_nextc): send a warning to ripper, not to STDERR
-	  always.
-
-	* parse.y (rb_warn1, rb_warning1): move argument conversions to
-	  callers.  PRIsVALUE is not valid in String#%.
-
-Wed Oct 14 13:37:23 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/racc/rdoc/grammar.en.rdoc: fix spell error.
-	  [fix GH-1053][ci skip] Patch by @Matrixbirds
-
-Tue Oct 13 22:06:50 2015  Tanaka Akira  <akr@fsij.org>
-
-	* ext/socket/raddrinfo.c (rsock_fd_family): Check sa_len.
-
-Tue Oct 13 12:14:10 2015  Craig Davison  <craig65535@gmail.com>
-
-	* ext/socket/rsock_addrinfo (rsock_addrinfo): specify address
-	  family.  [Fix GH-1052]
-
-	* ext/socket/udpsocket.c (udp_connect, udp_bind, udp_send):
-	  address family by the receiver.
-
-Sun Oct 11 07:09:19 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_push_frame): initialize other than sp (and ep)
-	  first for performance.
-
-Sun Oct 11 06:21:50 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_eval.c, internal.h (rb_yield_1): added for performance which
-	  doesn't check Qundef.
-
-	* numeric.c (int_dotimes): use rb_yield_1.
-
-Sun Oct 11 06:19:49 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_call_iseq_setup_normal): setup sp first
-	  for performance.
-
-Sun Oct 11 05:29:51 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c (invoke_block_from_c): split this function into several
-	  functions.
-
-	* vm_insnhelper.c (vm_yield_callee_setup_arg): remove this function
-	  because it is only delegation function.
-
-Sun Oct 11 03:48:46 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (newobj_of_slowpass): fix typo (pass -> path).
-	  Pointed out by Yukihiro Matsumoto  <matz@ruby-lang.org>.
-
-	* gc.c (newobj_of_...): `of' is unnecessary.
-
-Sat Oct 10 19:04:42 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/socket/udpsocket.c (udp_connect, udp_bind): get open files
-	  inside ensure functions.
-
-Sat Oct 10 18:35:12 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_call_method0): do not propagate enable_fastpath,
-	  but pass dummy CC to prevent wrong caching.
-
-Sat Oct 10 15:28:45 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* import a github pull request
-	  https://github.com/ruby/ruby/pull/1050
-	  by Kazuho Oku <kazuho@natadeco.co>.
-
-	  This pull request has the following commits.
-
-	* 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.
-
-	* gc.c (newobj_of), string.c (str_duplicate): for performance,
-	  the hot functions must be inlined.
-
-	* gc.c: for performance, preceding arguments of `.*newobj_of.*`
-	  must be same, so that the arg registers can be reused in case of
-	  TCO.
-
-Sat Oct 10 08:52:21 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/socket/udpsocket.c (udp_connect, udp_bind, udp_send): fix
-	  memory leaks at closed socket.
-
-Fri Oct  9 17:29:07 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (parse257): refactor.
-
-Fri Oct  9 16:42:26 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/imap.rb: use frozen_string_literal: true.
-
-	* test/net/imap/test_imap.rb: ditto.
-
-	* test/net/imap/test_imap_response_parser.rb: ditto.
-
-Fri Oct  9 15:52:28 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb: use frozen_string_literal: true.
-
-	* test/net/ftp/test_buffered_socket.rb: ditto.
-
-	* test/net/ftp/test_ftp.rb: ditto.
-
-	* test/net/ftp/test_mlsx_entry.rb: ditto.
-
-Fri Oct  9 14:12:35 2015  Shota Fukumori (sora_h)  <her@sorah.jp>
-
-	* 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.
-
-	  For instance, Servers where aws-sdk connects to still don't support
-	  TLS v1.2 and it became broken.
-
-	  We should consider more carefully about this.
-
-	  [Fix GH-873] [Feature #11524]
-
-Fri Oct  9 12:52:08 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* 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
-
-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.
-
-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.
-
-Thu Oct  8 14:10:45 2015  Zachary Scott  <zzak@ruby-lang.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
-
-Wed Oct  7 22:55:02 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/minitest/metametameta.rb (with_output): restore output to
-	  fix mixing test result output in worker responses.
-
-Wed Oct  7 21:32:51 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (str_duplicate): move from rb_str_resurrect to short
-	  circuit initialization.
-
-Wed Oct  7 20:43:14 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_resurrect): fix resurrection of short enough to
-	  be embedded but not embedded string.
-
-Wed Oct  7 20:17:29 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (newobj_of): divide fast path and slow path
-	  to avoid register savings for fast path.
-
-	  This idea is given by Kazuho Oku <kazuho@natadeco.co>.
-
-Wed Oct  7 17:30:50 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_times): optimize for the argument 0 and 1.
-
-Wed Oct  7 01:20:46 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.h, gc.c: introduce new debug function rb_obj_info_dump(VALUE obj)
-	  which prints the result of rb_raw_obj_info(..., obj).
-
-Wed Oct  7 01:16:11 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_args.c: remove an unused field args_info::calling.
-
-Tue Oct  6 23:43:10 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* proc.c (rb_method_entry_min_max_arity): should support
-	  OPTIMIZED_METHOD_TYPE_CALL.
-
-Tue Oct  6 21:29:08 2015  Tanaka Akira  <akr@fsij.org>
-
-	* lib/tmpdir.rb (Dir.tmpdir): return duplicated string to be
-	  modify safely even when $SAFE > 0.
-
-Tue Oct  6 19:24:38 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_call_method0): use switch() for visibilities
-	  (for readability).
-
-Tue Oct  6 19:23:58 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* proc.c (Init_Proc): Proc#call and others should be public.
-
-Tue Oct  6 18:51:51 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: IMEMO_FL_USER3 and IMEMO_FL_USER4 is not needed any more.
-
-Tue Oct  6 18:47:45 2015  Koichi Sasada  <ko1@atdot.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.
-
-	* vm_eval.c, vm_insnhelper.c, vm_method.c: ditto.
-
-Tue Oct  6 13:56:14 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h: turn function macros into inline functions,
-	  for debuggers.
-
-	* include/ruby/ruby.h: turn constant macros into enums, for
-	  debuggers.
-
-Tue Oct  6 13:48:05 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* method.h: typo fix. Patch by @davydovanton [fix GH-1032][ci skip]
-
-Tue Oct  6 06:54:34 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.c (rb_iseq_free): free iseq::variable_body to avoid memory
-	  leak.
-
-Tue Oct  6 06:32:52 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* proc.c: enable optimization of Proc#call.
-	  [Feature #11569]
-
-	* NEWS: write about this optimization and incompatibilities.
-
-	* test/ruby/test_backtrace.rb: catch up this fix.
-
-Tue Oct  6 04:41:03 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c: solve goto spaghetti.
-
-	  Change all goto statement across blocks to tail call functions.
-
-Tue Oct  6 02:29:38 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_resurrect): optimize by short circuit to copy
-	  hidden string without checking length, encoding and so on.
-
-Mon Oct  5 23:08:17 2015  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* test/ruby/test_thread.rb (test_handle_interrupt_blocking): check if
-	  exception handling was postponed until sleep.
-
-Mon Oct  5 22:25:49 2015  Tanaka Akira  <akr@fsij.org>
-
-	* lib/pp.rb: Use frozen_string_literal: true.
-
-	* lib/prettyprint.rb: Ditto.
-
-	* lib/resolv.rb: Ditto.
-
-	* lib/tmpdir.rb: Ditto.
-
-	* test/test_pp.rb: Ditto.
-
-	* test/test_prettyprint.rb: Ditto.
-
-	* tool/transcode-tblgen.rb: Ditto.
-
-Mon Oct  5 20:39:32 2015  Benoit Daloze  <eregontp@gmail.com>
-
-	* 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.
-
-Mon Oct  5 15:39:30 2015  Zachary Scott  <zzak@ruby-lang.org>
-
-	* numeric.c: [DOC] Overview for Numeric class by Joe Corcoran
-	  This patch was created at ROSSConf Berlin 2015 [Bug #11555]
-
-Mon Oct  5 15:34:56 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* proc.c (proc_new): link ep to calling block.
-	  [ruby-core:70980] [Bug #11566]
-
-Mon Oct  5 00:53:51 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (rb_dir_getwd): make ASCII-8BIT if filesystem encoding is
-	  US-ASCII, like as Dir.glob.
-
-Sun Oct  4 23:39:09 2015  Tanaka Akira  <akr@fsij.org>
-
-	* enum.c (nmin_filter): Fix limit value.
-	  patch by Helder Pereira.
-	  [Bug #11471] [ruby-core:70477]
-
-Sun Oct  4 15:11:48 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* enc/euc_jp.c (mbc_case_fold): check given string is valid or not,
-	  and if invalid, return 1. [Bug #11486]
-
-Sun Oct  4 10:09:57 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (rb_dir_getwd): normalize OS path to UTF-8 on OS X.
-
-Sun Oct  4 00:09:45 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-	  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
-
-Sun Oct 2 10:59:00 2015  schneems  <richard.schneeman@gmail.com>
-
-	* ext/pathname/lib/pathname.rb: freeze string literals for
-	  reduced object allocation.
-	  [Feature #11375] [ruby-core:70043]
-
-Fri Oct  2 09:20:20 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* common.mk, lib/unicode_normalize/tables.rb: Change Unicode
-	  Version for character normalization data from 7.0.0 to
-	  8.0.0.
-
-Fri Oct  2 00:18:39 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* proc.c (proc_mark): block.ep of Proc from Symbol is now NULL.
-	  [ruby-core:70961] [Bug #11560]
-
-Wed Sep 30 15:47:13 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_args.c (vm_caller_setup_arg_block): bypass Symbol#to_proc
-	  call to optimize symbol block passing.
-
-Wed Sep 30 01:34:34 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parser_free): fix memory leak at syntax error when
-	  warn-indent is enabled.
-
-Tue Sep 29 22:27:50 2015  Benoit Daloze  <eregontp@gmail.com>
-
-	* parse.y: fix minor typo. [ci skip][fix GH-1038].
-	  Patch by @ltratt.
-
-Tue Sep 29 16:53:53 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* tool/unicode_norm_gen.tmpl, lib/unicode_normalize/tables.rb:
-	  get rid of many .freeze commands by using frozen_string_literal
-	  pragma.
-
-Tue Sep 29 16:37:29 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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]
-
-	* string.c (rb_str_append_literal): append but keep encoding non
-	  US-ASCII.
-
-Mon Sep 28 17:40:17 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* 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.
-
-Mon Sep 28 16:07:08 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (mtime): parse decimal fractions of a second as
-	  specified in RFC 3659.
-
-Mon Sep 28 10:31:12 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/test_forwardable.rb: Write basic tests for lib/forwardable.
-	  [fix GH-1035] Patch by @kachick
-
-Sun Sep 27 23:32:46 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* class.c (rb_define_class, rb_define_class_id_under): refine
-	  error messages.
-
-	* class.c (rb_define_module, rb_define_module_id_under): ditto,
-	  and make consistent with class.
-
-Sun Sep 27 18:44:43 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ChangeLog: removed duplicated message.
-
-Sun Sep 27 15:46:58 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (process_options): add an option to enable/disable
-	  frozen-string-literal.  [Feature #8976]
-
-	* compile.c (iseq_compile_each): override compile option by option
-	  given by pragma.
-
-	* iseq.c (rb_iseq_make_compile_option): extract a function to
-	  overwrite rb_compile_option_t.
-
-	* parse.y (parser_set_compile_option_flag): introduce pragma to
-	  override compile options.
-
-	* parse.y (magic_comments): new pragma "frozen-string-literal".
-	  [Feature #8976]
-
-Sun Sep 27 08:16:35 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/ostruct.rb (delete_field): do not raise NameError for
-	  existing keys.  [Fix GH-1033]
-
-Sun Sep 27 00:34:31 2015  Zachary Scott  <zzak@ruby-lang.org>
-
-	* 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
-
-Fri Sep 25 10:07:25 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/net/http.rb: removed unused variable. It's removed at r13648.
-	  [fix GH-1022] Patch by @nkondratyev
-
-Fri Sep 25 09:48:27 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* gems/bundled_gems: upgrade to minitest-5.8.1
-
-Fri Sep 25 09:47:12 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* id_table.c: fix typo. [ci skip][fix GH-1031] Patch @davydovanton
-
-Fri Sep 25 07:54:05 2015  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* 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]
-
-Thu Sep 24 17:25:09 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (paren_args): fix separator token at `foo::bar()` in
-	  ripper.
-
-Thu Sep 24 00:00:17 2015  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* 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]
-
-Wed Sep 23 22:22:38 2015  Zachary Scott  <zzak@ruby-lang.org>
-
-	* ext/openssl/ossl_pkcs12*: Remove svn commit id macro
-
-Wed Sep 23 01:11:28 2015  Zachary Scott  <zzak@ruby-lang.org>
-
-	* ext/openssl/*: Remove svn commit id macros to make sync easier
-
-Tue Sep 22 04:20:01 2015  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* test/drb/test_drb.rb: Run Rinda/DRb tests on localhost. [Fix GH-1027]
-	  patch by voxik.
-
-	* test/rinda/test_rinda.rb: ditto
-
-Mon Sep 21 20:53:39 2015  tbpgr  <tbpgr@tbpgr.jp>
-
-	* test/win32ole/test_win32ole_event.rb: fix typo.
-	  swbemsink_avairable? => swbemsink_available?  [Fix GH-1025]
-
-Sun Sep 20 10:07:35 2015  Anton Davydov  <antondavydov.o@gmail.com>
-
-	* cont.c (rb_callcc): [DOC] append continuations example across
-	  methods.  [Fix GH-1026]
-
-Sun Sep 20 03:20:21 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.c (rb_iseq_free): free rb_iseq_t::body::cc_entries.
-
-Sun Sep 20 02:46:34 2015  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.
-
-	  Before this patch, only rb_call_info_t data is passed.
-	  After this patch, above three structs are passed.
-
-	  This patch improves:
-	  * data locality (rb_call_info is now read-only data).
-	  * reduce memory consumption (rb_call_info_with_kwarg,
-	    rb_calling_info).
-
-	* compile.c: use above data.
-
-	* insns.def: ditto.
-
-	* iseq.c: ditto.
-
-	* vm_args.c: ditto.
-
-	* vm_eval.c: ditto.
-
-	* vm_insnhelper.c: ditto.
-
-	* vm_insnhelper.h: ditto.
-
-	* iseq.h: add iseq_compile_data::ci_index and
-	  iseq_compile_data::ci_kw_index.
-
-	* tool/instruction.rb: introduce TS_CALLCACHE operand type.
-
-Sun Sep 20 02:18:10 2015  Tanaka Akira  <akr@fsij.org>
-
-	* test/lib/envutil.rb: mkfifo command based File.mkfifo method
-	  definition removed.
-
-Fri Sep 18 20:11:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_file_s_mkfifo): implement File.mkfifo.
-	  [Feature #11536]
-
-Fri Sep 18 16:56:19 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* NEWS: add Net::FTP#mlst and Net::FTP#mlsd.
-
-Fri Sep 18 07:39:22 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* ext/objspace/objspace_dump.c (obj_type): add IMEMO types to the heap
-	  dump information.
-
-Thu Sep 17 22:33:07 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* common.mk: fix command error with outside builddir.
-
-Thu Sep 17 17:42:09 2015  SHIBATA Hiroshi  <hsbt@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.
-
-Thu Sep 17 12:05:54 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* test/ruby/test_dir.rb (TestDir#test_fileno): s/?x/"x"/. Don't
-	  use tricky code, please.
-
-Wed Sep 16 20:49:56 2015  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* encindex.h: fix typo of last #endif comment. [ci skip]
-
-Wed Sep 16 20:39:26 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* variable.c (set_const_visibility): fail if the class/module is
-	  frozen.  [ruby-core:70828] [Bug #11532]
-
-Wed Sep 16 17:16:43 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-Wed Sep 16 15:08:17 2015  Akinori MUSHA  <knu@iDaemons.org>
-
-	* doc/syntax/literals.rdoc (Strings): [DOC] Revise the character
-	  literal part.
-
-Wed Sep 16 14:55:33 2015  Akinori MUSHA  <knu@iDaemons.org>
-
-	* doc/syntax/literals.rdoc (Strings): [DOC] Document the full list
-	  of supported escape sequences in string literals.
-
-Wed Sep 16 14:49:58 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_setbyte): keep the code range as possible.
-
-Wed Sep 16 13:23:48 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* doc/syntax/literals.rdoc (Strings): mention about ?a literal.
-
-Wed Sep 16 12:06:53 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* dir.c (glob_helper): check pathtype once again by lstat(2) if
-	  dp->d_type is DT_UNKNOWN. XFS may return DT_UNKNOWN.
-
-Wed Sep 16 03:49:19 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* test/ruby/test_thread.rb (TestThread#test_mutex_synchronize):
-	  insert waste loop for invoking preemptive thread context switch.
-	  [Bug #11496]
-
-Tue Sep 15 19:38:55 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gc.c (rb_objspace_alloc, rb_objspace_free): define always
-	  regardless ENABLE_VM_OBJSPACE, and free heap pages.
-
-Tue Sep 15 15:15:41 2015  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.
-
-	* dir.c (fundamental_encoding_p, push_glob): compare by encoding
-	  index immediately.
-
-	* 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().
-
-	* encindex.h: separate encoding index constants from internal.h.
-
-Tue Sep 15 13:13:13 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-Tue Sep 15 12:49:10 2015  Jason Barnabe  <jason.barnabe@gmail.com>
-
-	* 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]
-
-Tue Sep 15 12:44:32 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* util.c (ruby_qsort): use BSD-style qsort_r if available.
-
-Mon Sep 14 19:26:34 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (parse_mlsx_entry): parse pathnames including
-	  space correctly.
-
-Mon Sep 14 11:12:10 2015  Anton Davydov  <antondavydov.o@gmail.com>
-
-	* lib/racc/rdoc/grammar.en.rdoc: [DOC] fix typo, "convertion" to
-	  "conversion".  [Fix GH-1016]
-
-Sun Sep 13 11:03:13 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h: prefix RUBY or RB to global symbols to get
-	  rid of name conflicts with other headers.
-
-	* include/ruby/encoding.h, include/ruby/intern.h: ditto.
-
-Sun Sep 13 09:38:51 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (size, modify, create, type, unique, perm, lang,
-	  media_type, charset): new methods to return standard facts.
-
-Sat Sep 12 19:43:49 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_call_iseq_setup_normal): do not clear local
-	  variables here. vm_push_frame() clears.
-
-	* vm_insnhelper.c (vm_call_iseq_setup_tailcall): ditto.
-
-	* vm_insnhelper.c (vm_push_frame): move check code to
-	  vm_check_frame().
-
-	  Reorder initialization timing to reuse same values (sp).
-
-	* compile.c (rb_iseq_compile_node): use
-	  iseq_set_exception_local_table() for ISEQ_TYPE_DEFINED_GUARD.
-
-Sat Sep 12 23:06:51 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (file?, directory?, appendable?, creatable?,
-	  deletable?, enterable?, renamable?, listable?, directory_makable?,
-	  purgeable?, readable?, writable?): new methods.
-
-Sat Sep 12 21:27:22 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (FACT_PARSERS): support system dependent facts
-	  UNIX.mode, UNIX.owner, UNIX.group, UNIX.ctime, and UNIX.atime.
-
-Sat Sep 12 19:08:58 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_dup2): should return the new fd on
-	  success, while msvcrt returns 0 wrongly.
-
-Sat Sep 12 18:14:11 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (parse_mlsx_entry, mlst) raise an FTPProtoError
-	  when parsing failed.
-
-Sat Sep 12 18:00:35 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (TIME_PARSER): use "Z" instead of "+00:00" to
-	  get UTC time.  Thanks, Wilson Bilkovich.
-
-Sat Sep 12 17:55:24 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (mlst, mlsd): support new commands MLST and MLSD
-	  specified in RFC 3659.
-
-Sat Sep 12 16:14:31 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* file.c: access()/eaccess() wrapping methods check more than just uid.
-	  [fix GH-1007][ci skip] Patch by @eam
-
-Sat Sep 12 16:07:01 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* README.md: improve markdown rendering for readability.
-	  [fix GH-1015][ci skip] Patch by @Matrixbirds
-
-Sat Sep 12 14:30:03 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* process.c (save_redirect_fd): make saved FDs close-on-exec not
-	  to be inherited.
-
-	* process.c (run_exec_dup2): restore close-on-exec flags too.
-
-	* win32/win32.c (fcntl): implement F_GETFD, F_SETFD, and
-	  F_DUPFD_CLOEXEC.
-
-Sat Sep 12 05:35:24 2015  Eric Wong  <e@80x24.org>
-
-	* rational.c (string_to_r_strict): preserve encoding in exception
-
-Fri Sep 11 20:23:35 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: remove rb_call_info_t::aux.opt_pc.
-
-	* vm_insnhelper.c: introduce shortcut functions for opt_pc == 0
-	  because opt_pc is always 0 on shortcut function.
-
-Fri Sep 11 17:49:36 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.c: disable ISeq.load. It enabled accidentally at r51794.
-
-Fri Sep 11 11:15:12 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (size, mdtm, system): parse responses according to
-	  RFC 959 and 3659, where reply codes must be followed by SP.
-
-	* lib/net/ftp.rb (system): remove LF from the return value.
-
-Thu Sep 10 22:48:49 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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]
-
-Thu Sep 10 22:15:51 2015  Joe Rafaniello  <jrafanie@redhat.com>
-
-	* 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.
-
-	  Try to use more consistent language.
-	  [Fix GH-1008]
-
-Thu Sep 10 15:16:02 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (getmultiline): refactor.
-
-Thu Sep 10 12:17:28 2015  Nobuyoshi Nakada  <nobu@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]
-
-Wed Sep  9 18:16:14 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* 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.
-
-Wed Sep  9 16:55:45 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ruby.c (usage, enable_option, disable_option, process_options): new
-	  option `--disable-did_you_mean`.
-
-	* gem_prelude.rb: now requires did_you_mean gem by default if available.
-
-Wed Sep  9 13:38:56 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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 Sep  9 11:33:05 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* common.mk (update-gems): use BASERUBY instead of RUNRUBY.
-
-Wed Sep  9 11:08:59 2015  Zachary Scott  <zzak@ruby-lang.org>
-
-	* 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 Sep  9 10:05:41 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/rubygems/test_config.rb: fix broken tests for Windows platform.
-
-Wed Sep  9 07:46:32 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.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.
-
-Tue Sep  8 23:17:36 2015  Yuki Nishijima  <mail@yukinishijima.net>
-
-	* gems/bundled_gems: Upgrade the did_you_mean gem to 1.0.0.beta2.
-
-Tue Sep  8 23:09:28 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (rb_io_s_popen): do not wait the child process during being
-	  killed.  [ruby-core:70671] [Bug #11510]
-
-Tue Sep  8 22:18:04 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* gems/bundled_gems: revert because ruby trunk never be able to install
-	  the did_you_mean gem.  retry after enough test.
-
-Tue Sep  8 21:48:22 2015  Yuki Nishijima  <mail@yukinishijima.net>
-
-	* gems/bundled_gems: Automatically install the did_you_mean gem
-	  as a bundled gem.  [Feature #11252]
-
-Tue Sep  8 17:17:48 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: remove rb_call_info_t::blockiseq.
-
-	* insns.def (send, invokesuper): pass blockiseq explicitly.
-
-	* compile.c: catch up this fix.
-
-	* iseq.c: ditto.
-
-	* vm_args.c: ditto.
-
-	* iseq.c (ISEQ_MINOR_VERSION): 2->3 because instruction spec was
-	  changed.
-
-Tue Sep  8 15:01:19 2015  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.
-
-Tue Sep  8 12:05:00 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_read_reparse_point): return correct required
-	  buffer size for IO_REPARSE_TAG_MOUNT_POINT.
-
-Tue Sep  8 00:14:43 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* process.c (rb_execarg_parent_start1): raise with the target path
-	  name when open() failed.
-
-Mon Sep  7 23:45:28 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* process.c (rb_exec_fail): raise with the target directory name
-	  when chdir() failed.  pointed out by sorah.
-
-Mon Sep  7 22:05:28 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (insert): should use plain strdup() instead of
-	  ruby_strdup() at startup time, and plain free()ed in cmdglob().
-
-Mon Sep  7 16:49:30 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_core.h (rb_vm_struct): define objspace always regardless
-	  ENABLE_VM_OBJSPACE.
-
-Mon Sep  7 15:54:58 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby_atomic.h (ATOMIC_VALUE_CAS): fix typo.
-	  TODO: make arguments of all CAS macros consistent.
-
-Sun Sep  6 16:07:22 2015  Eric Wong  <e@80x24.org>
-
-	* ccan/list/list.h: suppress unused argument warnings
-	  [ccan commit 6aaca17e07588997417a73fac19dcf0ff17ed81b]
-
-Sat Sep  5 11:39:52 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/rss/rss.rb (Time#w3cdtf): fix zero-trimmed width of fraction
-	  digits.  [ruby-core:70667] [Bug #11509]
-
-Sat Sep  5 08:28:58 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (rb_hash_equal, rb_hash_eql): [DOC] the orders of each
-	  hashes are not compared.  [Bug #11508]
-
-Fri Sep  4 23:26:22 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/win32.h: fix macro name for VC runtime version,
-	  RT_VER is only in Makefile.
-
-Fri Sep  4 17:46:17 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* doc/contributing.rdoc: fix configuration option.
-	  [ci skip] [fix GH-1009]
-
-Fri Sep  4 04:46:54 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.c (iseq_memsize): functions for wrapper object should have
-	  iseqw_ prefix.
-
-Thu Sep  3 21:12:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/cgi/session.rb (create_new_id): use SHA512 instead of MD5.
-	  pointed out by SARWAR JAHAN.
-
-Thu Sep  3 20:29:18 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (rb_raw_obj_info): iseq->body->location.first_lineno is Fixnum.
-
-Thu Sep  3 17:54:26 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_eval.c (raise_method_missing): "names" should be singular.
-	  pointed out by Filip Bartuzi.
-
-Thu Sep  3 17:50:09 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (rb_raw_obj_info): should support IMEMO/iseq.
-
-Thu Sep  3 10:07:49 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_eval.c (raise_method_missing): refine error messages when a
-	  symbol is not given.  [Fix GH-1013]
-
-Wed Sep  2 18:49:55 2015  SHIBATA Hiroshi  <hsbt@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.
-
-Wed Sep  2 18:04:13 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.h (GET_PC_COUNT): remove unused macro.
-
-Wed Sep  2 17:18:37 2015  Chris Schneider  <chris@christopher-schneider.com>
-
-	* process.c (proc_detach): [DOC] fix typo "intent" as "intend" in
-	  rdoc.  [Fix GH-1011]
-
-Wed Sep  2 16:58:21 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_realpath_internal): use filesystem encoding if the
-	  argument is in ASCII encodings.
-
-	* win32/file.c (rb_readlink): needs the result encoding.
-
-Tue Sep  1 18:37:15 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* test/thread/test_queue.rb: catch up last commit.
-
-Tue Sep  1 18:16:32 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* thread_sync.c (queue_do_close): ignore multiple close to allow
-	  multiple producers.
-	  https://bugs.ruby-lang.org/issues/10600#note-14
-
-Tue Sep  1 18:06:26 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* thread_tools.c: rename thread_tools.c to thread_sync.c.
-
-Mon Aug 31 17:04:45 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* class.c (move_refined_method): should insert a write barrier
-	  from an original class to a created (cloned) method entry.
-
-	* test/ruby/test_refinement.rb: add a test.
-
-Sun Aug 30 02:42:22 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* 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]
-
-	* ext/openssl/extconf.rb: check for SSLv3 support in the SSL
-	  implementation.
-
-	* test/openssl/test_ssl.rb (class OpenSSL): Skip tests that need SSLv3
-	  if there is no support.
-
-Fri Aug 28 16:05:09 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rdoc/*: Update rdoc master(cfffed5)
-	  https://github.com/rdoc/rdoc/pull/337
-	  https://github.com/rdoc/rdoc/pull/367
-
-Fri Aug 28 10:16:20 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* 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/ruby/test_settracefunc.rb: add a test.
-
-Thu Aug 27 18:05:42 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/webrick/server.rb: use IO::NULL instead of '/dev/null'
-	* test/ruby/test_string.rb: ditto.
-
-Thu Aug 27 15:24:57 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c (iseq_set_sequence): rename variable names
-	  to make it readable.
-
-Thu Aug 27 07:45:34 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* thread_tools.c: add Queue#close(exception=false) and
-	  SizedQueue#close(exception=false).
-	  [Feature #10600]
-
-	  Trying to deq from a closed empty queue return nil
-	  if exception parameter equals to false (default).
-
-	  If exception parameter is truthy, it raises
-	  ClosedQueueError (< StopIteration).
-	  ClosedQueueError inherits StopIteration so that you can write:
-
-	    loop{ e = q.deq; (using e) }
-
-	  Trying to close a closed queue raises ClosedQueueError.
-
-	  Blocking threads to wait deq for Queue and SizedQueue will be
-	  restarted immediately by returning nil (exception=false) or
-	  raising a ClosedQueueError (exception=true).
-
-	  Blocking threads to wait enq for SizedQueue will be
-	  restarted by raising a ClosedQueueError immediately.
-
-	  The above specification is not proposed specification, so that
-	  we need to continue discussion to conclude specification this
-	  method.
-
-	* test/thread/test_queue.rb: add tests originally written by
-	  John Anderson and modify detailed behavior.
-
-Wed Aug 26 10:52:02 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* re.c (rb_memsearch_wchar, rb_memsearch_qchar): test matching
-	  till the end of string.  [ruby-core:70592] [Bug #11488]
-
-	* test/ruby/test_m17n.rb (test_include?, test_index): add tests by
-	  Tom Stuart.
-
-Wed Aug 26 09:26:00 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* id_table.c (list_table_extend, hash_table_extend): remove C99
-	  features.  [ruby-dev:49239] [Bug #11487]
-
-Tue Aug 25 06:34:43 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (w32_symlink): implement symlink().
-
-Mon Aug 24 16:01:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* encoding.c (rb_locale_encindex): find encoding index without
-	  making a string object every time.  [ruby-core:58160] [Bug #9080]
-
-Sat Aug 22 15:43:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-Sat Aug 22 08:23:32 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* 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]
-
-	  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.
-
-	  Now, ext/thread/thread.c is empty, only for a dummy for
-	  compatibility.
-
-	* thread.c: move a definition of Mutex class to thread_tools.c.
-
-	  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.
-
-	* common.mk: add dependency from thread.o to thread_tools.c.
-
-Sat Aug 22 05:31:37 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_opts.h, iseq.c, iseq.h: add compile option to force frozen
-	  string literals.
-	  [Feature #11473]
-
-	  This addition is not specification change, but to try frozen
-	  string literal world discussed on [Feature #11473].
-
-	  You can try frozen string literal world using this magical line:
-
-	    RubyVM::InstructionSequence.compile_option =
-	      {frozen_string_literal: true}
-
-	  Note that this is a global compilation option, so that you need to
-	  compile another script like that:
-
-	    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
-
-	  Details:
-	    * String literals are deduped by rb_fstring().
-	    * Dynamic string literals ("...#{xyz}...") is now only frozen,
-	      not deduped. Maybe you have other ideas.
-
-	  Now, please do not use this option on your productions :)
-	  Of course, current specification can be changed.
-
-	* compile.c: ditto.
-
-	* test/ruby/test_iseq.rb: add a test.
-
-Sat Aug 22 02:53:12 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* ext/psych/*: update to Psych 2.0.14
-
-	* test/psych/*: ditto
-
-Fri Aug 21 19:58:48 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* ext/objspace/objspace.c: add a new method ObjectSpace.count_symbols.
-	  [Feature #11158]
-
-	* symbol.c (rb_sym_immortal_count): added to count immortal symbols.
-
-	* symbol.h: ditto.
-
-	* test/objspace/test_objspace.rb: add a test for this method.
-
-	* NEWS: describe about this method.
-
-Fri Aug 21 19:48:17 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/Makefile.sub ($(LIBRUBY_SO)): needs additional libraries
-	  for extension libraries to link statically.
-	  [ruby-core:70499] [Feature #9018]
-
-Fri Aug 21 18:49:22 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* 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]
-
-	* test/ruby/test_settracefunc.rb: add tests.
-
-Fri Aug 21 17:32:42 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_invoke_block): we should not expect ci->argc is
-	  stable after invoking a block. [Bug #11451]
-
-	* test/ruby/test_yield.rb: add a test. This test script is given by
-	  Alex Dowad.
-
-Fri Aug 21 06:35:50 2015  Aaron Patterson <tenderlove@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]
-
-Thu Aug 20 22:19:17 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_method.c (basic_obj_respond_to): call respond_to_missing?
-	  only when redefined.  [ruby-core:70460] [Bug #11465]
-
-Thu Aug 20 14:13:27 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_eval.c (check_funcall_respond_to): share the behavior with
-	  rb_obj_respond_to.  [ruby-core:70460] [Bug #11465]
-
-	* vm_method.c (vm_respond_to): extract from rb_obj_respond_to and
-	  merge r39881.
-
-Thu Aug 20 08:53:09 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_method.c (rb_obj_respond_to): reuse found method entry
-	  instead of searching same entry repeatedly.
-
-Thu Aug 20 08:31:17 2015  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]
-
-Wed Aug 19 23:59:28 2015  Aaron Patterson <tenderlove@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.
-
-	* test/openssl/test_ssl.rb (class OpenSSL): check that OP_ALL has been
-	  added to the options.
-
-Wed Aug 19 23:55:29 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* process.c (rb_f_spawn): [DOC] elaborate environment variable
-	  values.  [ruby-core:70456] [Bug #11463]
-
-Wed Aug 19 23:48:06 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (winnt_lstat): check reparse point tags and treat
-	  supported tags only as symbolic links.
-	  [ruby-core:70454] [Bug #11462]
-
-Tue Aug 18 20:05:49 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* thread_pthread.c (reserve_stack): ensure the memory is really
-	  allocated. [Bug #11457]
-
-Tue Aug 18 17:19:21 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (IS_BEG): include labeled argument state, which was
-	  EXPR_LABELARG.  [ruby-dev:49221] [Bug #11456]
-
-Tue Aug 18 16:16:21 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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]
-
-Mon Aug 17 20:56:36 2015  Nobuyoshi Nakada  <nobu@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]
-
-Mon Aug 17 11:57:36 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (rb_io_each_codepoint): raise an exception at incomplete
-	  character before EOF when conversion takes place.  [Bug #11444]
-
-Sun Aug 16 17:33:45 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* gems/bundled_gems: update latest version of bundled gems.
-	  It includes minitest-5.8.0 and test-unit 3.1.3.
-
-Sun Aug 16 17:24:10 2015  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* gc.c (gc_mark_children): check if RCLASS_EXT is valid
-	  before marking. This fixes the following test failure
-	  introduced in r51126:
-
-	    make test-all TESTOPTS='--gc-stress ruby/test_refinement.rb'
-
-Sat Aug 15 10:51:08 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/win32/lib/win32/registry.rb (API#SetValue): data size should
-	  be in bytes, not in chars.  [ruby-core:70365] [Bug #11439]
-
-Sat Aug 15 10:15:20 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (rb_io_each_codepoint): read more data when read partially.
-	  [ruby-core:70379] [Bug #11444]
-
-Sat Aug 15 04:33:39 2015  Eric Wong  <e@80x24.org>
-
-	* 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]
-
-Sat Aug 15 04:16:13 2015  Eric Wong  <e@80x24.org>
-
-	* iseq.c (rb_iseq_mark): reduce NULL checks
-
-Fri Aug 14 18:50:57 2015  Eric Wong  <e@80x24.org>
-
-	* method.h (METHOD_ENTRY_VISI_SET): cast visi to int
-	  (METHOD_ENTRY_FLAGS_SET): ditto
-
-Fri Aug 14 18:43:11 2015  Eric Wong  <e@80x24.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]
-
-Fri Aug 14 18:40:43 2015  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]
-
-Thu Aug 13 22:49:42 2015  Juanito Fatas  <katehuang0320@gmail.com>
-
-	* lib/timeout.rb (Timeout#timeout): freeze a string message to
-	  reduce string allocations.  [Fix GH-996]
-
-Thu Aug 13 17:42:34 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* 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.
-
-Thu Aug 13 14:36:31 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (rb_num_to_dbl): move from num2dbl_with_to_f in math.c.
-
-Thu Aug 13 09:01:25 2015  Eric Wong  <e@80x24.org>
-
-	* load.c (features_index_add): avoid repeat calculation
-
-Wed Aug 12 21:57:31 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* id_table.c: IMPL() macro accept op as _opname instead of opname
-	  because jemalloc seems to replace the word `free' to `je_free'.
-
-Wed Aug 12 21:51:11 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* id_table.c (mix_id_table_insert): fix memory leak.
-
-Wed Aug 12 21:17:38 2015  Eric Wong  <e@80x24.org>
-
-	* 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]
-
-Wed Aug 12 21:15:27 2015  Eric Wong  <e@80x24.org>
-
-	* vm_core.h (rb_call_info_kw_arg_bytes): extract from compile.c
-	* compile.c (iseq_build_callinfo_from_hash): use above function
-
-Wed Aug 12 18:00:17 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* class.c (move_refined_method): same as the last commit.
-
-Wed Aug 12 17:57:53 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* class.c, gc.c vm.c: use ID_TABLE_* instead of ST_*
-	  (such as ST_CONTINUE) for enum rb_id_table_iterator_result.
-
-Wed Aug 12 17:05:36 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* id_table.h: introduce ID key table.
-	  [Feature #11420]
-
-	  This table only manage ID->VALUE table to reduce overhead of st.
-
-	  Some functions prefixed rb_id_table_* are provided.
-
-	* id_table.c: implement rb_id_table_*.
-
-	  There are several algorithms to implement it.
-
-	  Now, there are roughly 4 types:
-
-	    * st
-	    * array
-	    * hash (implemented by  Yura Sokolov)
-	    * mix of array and hash
-
-	  The macro ID_TABLE_IMPL can choose implementation.
-	  You can see detailes about them at the head of id_table.c.
-
-	  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.
-
-	  * symbol.c: introduce rb_id_serial_t and rb_id_to_serial()
-	    to represent ID by serial number.
-
-	  * internal.h: use id_table for method tables.
-
-	  * class.c, gc.c, marshal.c, vm.c, vm_method.c: ditto.
-
-Wed Aug 12 05:19:11 2015  Eric Wong  <e@80x24.org>
-
-	* 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]
-
-Tue Aug 11 22:59:57 2015  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (Init_Numeric): Fix document for Float::MIN and
-	  Float::EPSILON.
-
-Tue Aug 11 15:22:31 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (ALLOCV_N): check integer overflow, as well
-	  as ruby_xmalloc2.  pointed out by Paul <pawlkt AT gmail.com>.
-
-Tue Aug 11 14:57:09 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* array.c (rb_ary_repeated_permutation): fix buffer size, ALLOCV_N
-	  already multiplies element size.
-
-Tue Aug 11 12:13:20 2015  Jeremy Evans  <merch-redmine@jeremyevans.net>
-
-	* test/openssl/test_ssl.rb: Fix LocalJumpErrors being raised
-	  in OpenSSL tests. [ruby-core:70020][Bug #11368]
-
-Tue Aug 11 11:54:13 2015  Alexey Lipnyagov  <liptonshmidt@gmail.com>
-
-	* string.c: Fix documentation for String#slice
-	  [ruby-core:70298][Bug #11427]
-
-Tue Aug 11 11:53:28 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (superclass): make superclass rule optional and allow
-	  any contents without a terminator.  [EXPERIMENTAL]
-
-Tue Aug 11 10:58:42 2015  Juanito Fatas  <juanitofatas@gmail.com>
-
-	* string.c: [DOC] Make #end_with? example doc symmetry
-	  with #start_with? [fix GH-992][ci skip]
-
-Tue Aug 11 10:51:19 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/ruby/test_array.rb: Add test for `Array#flatten` with level 1
-	  [fix GH-986] Patch @yui-knk
-
-Tue Aug 11 10:48:16 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* 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
-
-Tue Aug 11 10:33:26 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* vm_method.c: typo fix [fix GH-993][ci skip] Patch by @0x0dea
-	* test/ruby/test_refinement.rb: ditto.
-
-Sun Aug  9 14:15:54 2015  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]
-
-Sat Aug  8 03:59:51 2015  Zachary Scott  <zzak@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
-
-Sat Aug  8 03:39:33 2015  Zachary Scott  <zzak@ruby-lang.org>
-
-	* 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
-
-Fri Aug  7 21:04:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parser_params): turn in_def and in_single into bit
-	  flags and reduce the size by 2-words.
-
-	* parse.y (parser_params): remove redundant prefixes.
-
-	* parse.y (yylex): non-pure parser has not been supported since
-	  merger of ripper.  change argument types from void pointers.
-
-Fri Aug  7 17:07:56 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* proc.c (method_super_method): uncallable method entry does not
-	  have the defined class, use the owner instead.
-	  [ruby-core:70254] [Bug #11419]
-
-	* test/ruby/test_method.rb (test_super_method_unbound): add test
-	  by Akira Matsuda.
-
-Thu Aug  6 10:49:57 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* node.c (rb_alloc_tmp_buffer): round up the size and check the
-	  range.
-
-	* ruby_atomic.h (ATOMIC_VALUE_EXCHANGE, ATOMIC_VALUE_CAS): add
-	  atomic operations for VALUE.
-
-Thu Aug  6 08:15:49 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): move
-	  SSLSocket#sysclose to Ruby.
-
-	* ext/openssl/ossl_ssl.c (ossl_ssl_close): ditto
-
-Thu Aug  6 07:57:21 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): move nonblock
-	  enable to SSLSocket#initialize and remove Nonblock module.
-
-Thu Aug  6 07:53:47 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): move
-	  OpenSSL::SSL::SSLSocket#initialize to Ruby.
-
-	* ext/openssl/ossl_ssl.c: ditto
-
-Thu Aug  6 02:25:31 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* node.c (rb_alloc_tmp_buffer): use NODE_ALLOCA to mark locations
-	  like as builtin alloca.  [ruby-core:70251] [Bug #11418]
-
-Wed Aug  5 14:37:55 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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]
-
-Tue Aug  4 16:53:43 2015  Aaron Patterson <tenderlove@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.
-
-	* ext/openssl/ossl_ssl.c: move callback lookup methods to private Ruby
-	  methods.
-
-Tue Aug  4 16:40:26 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* test/ruby/test_module.rb: should not expect a method table ordering.
-	  [Feature #11414]
-
-Tue Aug 04 15:30:04 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* proc.c (rb_block_clear_env_self): clear by Qfalse instead of Qnil.
-	  [Bug #11409]
-
-	* test/ruby/test_eval.rb: add tests for this issue,
-	  written by @0x0dea.
-	  https://github.com/ruby/ruby/pull/988
-
-Tue Aug  4 12:12:14 2015  Eric Wong  <e@80x24.org>
-
-	* variable.c: wrap long lines
-
-Tue Aug  4 09:32:30 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* proc.c: Removing duplicate doc [fix GH-987][ci skip]
-	  Patch by @ronakjangir47
-
-Tue Aug  4 09:21:58 2015  Richard Schneeman  <richard.schneeman+foo@gmail.com>
-
-	* doc/contributing.rdoc: fixed wrong instructions with OS X
-	  [fix GH-989][ci skip] Patch by @schneems
-
-Mon Aug  3 10:08:33 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* re.c (rb_memsearch): should match only char boundaries in wide
-	  character encodings.  [ruby-core:70220] [Bug #11413]
-
-Sun Aug  2 07:01:17 2015  Eric Wong  <e@80x24.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]
-
-Sat Aug  1 17:13:15 2015  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* 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]
-
-	* test/net/http/test_httpresponse.rb: tests for the above.
-
-Sat Aug  1 17:05:18 2015  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* lib/net/http/response.rb (Net::HTTPResponse#inflater):
-	  fix TypeError. An exception object might be nil.
-	  [ruby-core:68846] [Bug #11058]
-
-Sat Aug  1 09:09:46 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* 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`.
-
-	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): Default `options`
-	  to SSL_OP_ALL
-
-Sat Aug  1 06:54:36 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* 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
-
-Sat Aug  1 04:06:29 2015  Aaron Patterson <tenderlove@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).
-
-	* 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
-
-Sat Aug  1 03:49:31 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* 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.
-
-Sat Aug  1 03:43:10 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* ext/openssl/ossl_ssl.c (ossl_call_tmp_dh_callback): create an array
-	  and use `rb_apply` to clean up calls to `rb_protect`.
-
-	* ext/openssl/ossl_ssl.c (ossl_tmp_dh_callback): ditto
-
-Sat Aug  1 03:27:12 2015  Aaron Patterson <tenderlove@ruby-lang.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.
-
-Sat Aug  1 03:14:07 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* 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.
-
-	* ext/openssl/ossl_ssl.c: call the tmp_dh_callback instead of
-	  accessing the SSLContext's internals.
-
-Fri Jul 31 23:34:27 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* .travis.yml: update libssl before running tests.
-	  Thanks to Chris Sinjakli <chris@sinjakli.co.uk> for figuring out the
-	  travis settings!
-
-Fri Jul 31 21:34:49 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* load.c (rb_require_internal): use rb_load_internal0 not to raise
-	  a exception to be caught.
-
-Thu Jul 30 13:19:54 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* variable.c (rb_const_get_0): warn deprecated constant reference.
-
-	* variable.c (rb_mod_deprecate_constant): mark constants to be
-	  warned as deprecated.  [Feature #11398]
-
-Thu Jul 30 11:53:54 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread.c (rb_thread_s_handle_interrupt): make identity hash, to
-	  compare masking classes just by their IDs.
-
-Thu Jul 30 11:52:55 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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]
-
-Thu Jul 30 10:42:27 2015  Alex Dowad  <alexinbeijing@gmail.com>
-
-	* 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]
-
-Thu Jul 30 08:48:42 2015  Eric Wong  <e@80x24.org>
-
-	* st.c (find_entry): constify st_table*
-	  (find_packed_index_from): ditto
-	  (find_packed_index): ditto
-	  (get_keys): ditto
-	  (get_values): ditto
-
-Thu Jul 30 04:29:25 2015  Eric Wong  <e@80x24.org>
-
-	* benchmark/bm_hash_aref_dsym.rb: new benchmark
-	* benchmark/bm_hash_aref_dsym_long.rb: ditto
-	* benchmark/bm_hash_aref_fix.rb: ditto
-
-Wed Jul 29 21:38:41 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (any_hash), symbol.c (dsymbol_alloc): fix dynamic symbol
-	  hash value by restricting in Fixnum range, that is `long`.
-
-Wed Jul 29 17:25:46 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (rb_obj_hash): move in order to share with rb_any_hash.
-
-Wed Jul 29 16:00:22 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (str_buf_cat): consider empty non-embed string case,
-	  not to loop infinitely.  [ruby-core:70074] [Bug #11383]
-
-Wed Jul 29 15:25:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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 Jul 29 14:54:16 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (rb_sym_hash): return same value as rb_any_hash() of
-	  Symbol.  [Bug #9381]
-
-	* hash.c (rb_any_hash): fix Float hash.  rb_dbl_hash() returns a
-	  Fixnum, but not a long.  [Bug #9381]
-
-Wed Jul 29 11:07:10 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* internal.h (LIKELY, UNLIKELY): make a boolean to enforce 1 or 0.
-
-Wed Jul 29 10:44:43 2015  Alex Dowad  <alexinbeijing@gmail.com>
-
-	* gc.c: document argument passed to finalizer proc.
-	  [fix GH-976][ci skip] Patch by @alexdowad
-
-Wed Jul 29 10:36:58 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* io.c (rb_io_extract_modeenc): add option parameter `flags'
-	  to append extra oflags to normal mode.
-	  [Feature #11253] [ruby-core:69539]
-
-Wed Jul 29 04:54:47 2015  Eric Wong  <e@80x24.org>
-
-	* test/rubygems/test_gem_remote_fetcher.rb: pre-generate test key
-	  [ruby-core:70151] [Bug #11397]
-
-Tue Jul 28 10:32:09 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* internal.h (struct RClass): moved from ruby/ruby.h to hide the
-	  internals.
-
-Tue Jul 28 08:48:29 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (RUBY_TYPE_ATTRIBUTE): attribute declaration for
-	  types.
-
-Tue Jul 28 07:23:03 2015  Eric Wong  <e@80x24.org>
-
-	* 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]
-
-Tue Jul 28 03:26:15 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* 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.
-
-	* test/openssl/test_ssl.rb (class OpenSSL): test for change
-
-Mon Jul 27 13:24:11 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* template/id.h.tmpl (ID2ATTRSET): remove an unused macro.
-
-Mon Jul 27 12:21:15 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/openssl/test_ssl.rb: run tests on non-Unix platforms.
-
-Sun Jul 26 19:21:31 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/openssl/ossl_ssl.c (ossl_ssl_alpn_protocol): fix condition
-	  to compile, needs ALPN to be available.  [Feature #9390]
-
-Sun Jul 26 11:29:01 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* signal.c (default_handler, Init_signal): discard SIGSYS, ENOSYS
-	  should raise a SystemCallError always instead.
-
-Sun Jul 26 10:26:35 2015  Aaron Patterson <tenderlove@ruby-lang.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.
-
-	* test/openssl/test_ssl.rb (class OpenSSL): test for change.
-
-Sun Jul 26 10:07:26 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* test/openssl/test_ssl.rb (class OpenSSL): add test coverage around
-	  OpenSSL::SSL::SSLContext#servername_cb
-
-Sun Jul 26 09:10:32 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* gems/bundled_gems: update latest version of bundled power_assert.
-
-Sun Jul 26 08:49:28 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* 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
-
-Sun Jul 26 08:33:03 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* ext/openssl/lib/openssl/pkey.rb: implement DEFAULT_512 and
-	  DEFAULT_1024 constants in Ruby.
-
-	* 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/openssl/ossl_pkey_dh.c (OSSL_PKEY_BN): Remove C definitions of
-	  DEFAULT_512 and DEFAULT_1024
-
-	* ext/openssl/ossl_pkey_dh.c (Init_ossl_dh): ditto
-
-	* test/openssl/test_pkey_dh.rb (class OpenSSL): add test to ensure the
-	  Ruby definitions are the same as the C definitions were.
-
-Sun Jul 26 08:14:59 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): support
-	  specifically setting the tmp_dh_callback to nil.
-
-	* ext/openssl/ossl_ssl.c (Init_ossl_ssl): ditto
-
-	* test/openssl/test_pair.rb (module OpenSSL): add a test
-
-Sun Jul 26 07:47:14 2015  Aaron Patterson <tenderlove@ruby-lang.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/openssl/ossl_pkey_dh.c (static unsigned char DEFAULT_DH_512_GEN):
-	  move this constant to Ruby.
-
-	* ext/openssl/ossl_pkey_dh.c (static unsigned char DEFAULT_DH_1024_GEN):
-	  ditto
-
-	* ext/openssl/ossl_pkey_dh.c (Init_ossl_dh): ditto
-
-	* ext/openssl/ossl_ssl.c (ossl_tmp_dh_callback): ditto
-
-	* ext/openssl/ossl_ssl.c (ossl_sslctx_setup): tmp_dh_callback should
-	  always be set, so we can remove this conditional
-
-Sun Jul 26 06:22:24 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* test/openssl/test_pair.rb: add a test ensuring that the default DH
-	  callback is used when no DH callback is specified.
-
-Sun Jul 26 04:08:27 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): add missing
-	  instance variables to squash warnings with alpn.
-
-Sun Jul 26 03:42:19 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* ext/openssl/lib/openssl/ssl.rb (module OpenSSL): move
-	  OpenSSL::SSL::SSLContext#initialize implementation to pure Ruby.
-
-	* ext/openssl/ossl_ssl.c (ossl_sslctx_initialize): ditto
-
-	* ext/openssl/ossl_ssl.c (Init_ossl_ssl): ditto
-
-Sat Jul 25 21:03:45 2015  Nobuyoshi Nakada  <nobu@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]
-
-Sat Jul 25 11:05:31 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (str_replace_shared_without_enc): fill the terminator
-	  of embedded strings in wide char encodings.
-
-Sat Jul 25 06:38:36 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* 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
-
-	* iseq.h: same for iseq_catch_table::size.
-
-	* compile.c: catch up these fix.
-
-	* iseq.c: ditto.
-
-	* proc.c: ditto.
-
-	* vm.c: ditto.
-
-	* vm_args.c: ditto.
-
-	* vm_eval.c: ditto.
-
-	* vm_insnhelper.c: ditto.
-
-Sat Jul 25 06:00:09 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: constify rb_iseq_constant_body::line_info_table.
-
-	* iseq.c: catch up this fix.
-
-Sat Jul 25 05:56:43 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: constify rb_iseq_constant_body::param::opt_table and
-	  rb_iseq_constant_body::param::keyword.
-
-	* compile.c: catch up this fix.
-
-Sat Jul 25 04:47:01 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: constify rb_iseq_constant_body::catch_table.
-
-	* compile.c (iseq_set_exception_table): catch up this fix.
-
-	* iseq.c: ditto.
-
-	* vm.c (vm_exec): ditto.
-
-Fri Jul 24 21:29:54 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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 Jul 24 21:27:29 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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 Jul 24 20:09:43 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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]
-
-	* test/rinda/test_rinda.rb (test_make_socket_ipv6_multicast): ditto
-	  for Rinda::TestRingServer#test_make_socket_ipv6_multicast.
-
-	* test/rinda/test_rinda.rb (test_ring_server_ipv6_multicast): ditto
-	  for Rinda::TestRingServer#test_ring_server_ipv6_multicast.
-
-Fri Jul 24 16:35:55 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (fstr_update_callback): pool bare strings only.
-
-	* 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]
-
-Fri Jul 24 16:35:34 2015  yui-knk  <spiketeika@gmail.com>
-
-	* file.c (rb_file_s_extname): [DOC] add an example.
-
-	* 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')
-
-Thu Jul 23 18:50:43 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: constify rb_iseq_constant_body::local_table and
-	  rb_iseq_param_keyword::table and
-	  rb_iseq_param_keyword::default_values.
-
-	* compile.c: catch up this fix.
-
-	* iseq.c: ditto.
-
-Thu Jul 23 17:30:43 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: constify rb_iseq_constant_body::iseq_encoded and
-	  rb_control_frame_t::pc.
-
-	* compile.c (rb_iseq_translate_threaded_code): catch up this fix.
-
-	* iseq.c: ditto.
-
-	* vm_exec.c (vm_exec_core): ditto.
-
-Thu Jul 23 10:25:46 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h: add raw FL macros, which assume always the
-	  argument object is not a special constant.
-
-	* internal.h (STR_EMBED_P, STR_SHARED_P): valid only for T_STRING.
-
-	* string.c: deal with taint flags directly across String instances.
-
-Thu Jul 23 09:05:28 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (lambda_body): pop cmdarg stack for lookahead
-	  token.  [ruby-core:70067] [Bug #11380]
-
-Thu Jul 23 04:03:03 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* ext/openssl/ossl_ssl.c: fix tests by not setting the instance
-	  variable on the frozen ssl instance.
-
-Thu Jul 23 03:32:26 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* ext/openssl/ossl_ssl.c: add ECDH callback support. [Feature #11356]
-
-	* test/openssl/test_pair.rb: test for ECDH callback support
-
-Thu Jul 23 03:29:49 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* ext/openssl/ossl_ssl.c: add ALPN support. [Feature #9390]
-
-	* ext/openssl/extconf.rb: detect ALPN support in OpenSSL
-
-	* test/openssl/test_ssl.rb: test for ALPN
-
-Wed Jul 22 23:44:17 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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 Jul 22 20:17:51 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: modify layout of rb_iseq_constant_body.
-
-	  Move frequent accessing fields to upper part.
-
-Wed Jul 22 19:57:47 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: remove unused declaration of
-	  iseq_compile_data_ensure_node_stack.
-
-Wed Jul 22 19:52:45 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: separate rb_iseq_body into rb_iseq_constant_body and
-	  rb_iseq_variable_body (rb_iseq_t::variable_body).
-
-	  rb_iseq_variable_body can be modified after compilation.
-
-	* compile.c: use rb_iseq_t::variable_body.
-
-	* iseq.c: ditto.
-
-	* thread.c: ditto.
-
-Wed Jul 22 17:50:35 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/matrix/eigenvalue_decomposition.rb: refine code style.
-	  [fix GH-959][ci skip] Patch by @bogdanvlviv
-
-Wed Jul 22 15:48:47 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/ruby/test_range.rb: Add test case for Range#end with
-	  exclude_end true case. [fix GH-968] Patch by @yui-knk
-
-Wed Jul 22 09:45:31 2015  Maksim Sitnikov  <sitnikovme@undev.ru>
-
-	* numeric.c (num_coerce): [DOC] fix doc for Numeric#coerce,
-	  missing '+'.  [Fix GH-974]
-
-Wed Jul 22 07:24:18 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* make rb_iseq_t T_IMEMO object (type is imemo_iseq).
-
-	  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.
-
-	  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.
-
-	  This patch is big, but most of difference is replacement of
-	  iseq->xxx to iseq->body->xxx.
-
-	  (previous) rb_iseq_t::compile_data is also located to
-	  rb_iseq_t::compile_data.
-	  It was moved from rb_iseq_body::compile_data.
-
-	  Now rb_iseq_t has empty two pointers.
-	  I will split rb_iseq_body data into static data and dynamic data.
-
-	* compile.c: rename some functions/macros.
-	  Now, we don't need to separate iseq and iseqval (only VALUE).
-
-	* eval.c (ruby_exec_internal): `n' is rb_iseq_t (T_IMEMO/iseq).
-
-	* ext/objspace/objspace.c (count_imemo_objects): count T_IMEMO/iseq.
-
-	* gc.c: check T_IMEMO/iseq.
-
-	* internal.h: add imemo_type::imemo_iseq.
-
-	* iseq.c: define RubyVM::InstructionSequence as T_OBJECT.
-	  Methods are implemented by functions named iseqw_....
-
-	* load.c (rb_load_internal0): rb_iseq_new_top() returns
-	  rb_iseq_t (T_IMEMO/iesq).
-
-	* method.h (rb_add_method_iseq): accept rb_iseq_t (T_IMEMO/iseq).
-
-	* vm_core.h (GetISeqPtr): removed because it is not T_DATA now.
-
-	* vm_core.h (struct rb_iseq_body): remove padding for
-	  [Bug #10037][ruby-core:63721].
-
-Wed Jul 22 07:15:33 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* ext/objspace/objspace.c (total_i): no need to skip singleton classes.
-
-Wed Jul 22 06:37:54 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: constify rb_call_info_t::kw_arg,
-	  rb_control_frame_t::iseq and rb_control_frame_t::block_iseq.
-
-	* iseq.c (iseq_free): catch up this fix.
-
-	* vm.c: ditto.
-
-	* vm_dump.c: ditto.
-
-Wed Jul 22 06:25:45 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: constify rb_call_info_t::blockiseq and rb_block_t::iseq.
-
-	* vm.c, vm_insnhelper.c: catch up this fix.
-
-	* iseq.c (iseq_data_to_ary): constify the first iseq parameter.
-
-	* vm_insnhelper.c (vm_make_proc_with_iseq): ditto.
-
-Wed Jul 22 06:17:35 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: constify rb_method_iseq_t::iseqptr.
-
-	* proc.c (rb_method_entry_min_max_arity): catch up this fix.
-
-	* vm_insnhelper.c (def_iseq_ptr): constify.
-
-Wed Jul 22 03:37:39 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (internal_object_p): Now a singleton classes appear by
-	  ObjectSpace.each_object. [Bug #11360]
-
-	* test/ruby/test_objectspace.rb: add a test about it.
-
-Tue Jul 21 21:21:33 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread.c (do_select): replace switch and goto with a loop to
-	  suppress maybe-uninitialized warnings by gcc6.
-
-	* thread.c (set_unblock_function, rb_wait_for_single_fd): ditto.
-
-Tue Jul 21 20:32:33 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/ruby/test_range.rb: Add test for Range#hash
-	  [fix GH-969] Patch by @yui-knk
-
-Tue Jul 21 19:43:20 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* compile.c: constify the first parameter (iseq).
-	  * iseq_add_mark_object()
-	  * iseq_add_mark_object_compile_time()
-
-	* iseq.c, iseq.h (rb_iseq_add_mark_object): ditto.
-
-Tue Jul 21 16:18:48 2015  Eric Wong  <e@80x24.org>
-
-	* test/socket/test_nonblock.rb: increase buffer sizes
-	  to OpenBSD limits. Thanks to Jeremy Evans <code@jeremyevans.net>
-	  [ruby-core:70058]
-
-Tue Jul 21 16:08:53 2015  Eric Wong  <e@80x24.org>
-
-	* load.c (ruby_dln_librefs): make static
-
-Tue Jul 21 13:36:54 2015  yuuji.yaginuma  <yuuji.yaginuma@gmail.com>
-
-	* lib/optparse.rb (complete): [DOC] fix typo.  [Fix GH-973]
-
-Tue Jul 21 05:20:21 2015  Eric Wong  <e@80x24.org>
-
-	* 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]
-
-Mon Jul 20 15:04:30 2015  Eric Wong  <e@80x24.org>
-
-	* parse.y (parser_initialize): avoid redundant zero-ing
-
-Mon Jul 20 12:12:05 2015  Eric Wong  <e@80x24.org>
-
-	* parse.y (struct parser_params): pack: 88 => 256 bytes on 64-bit
-	  [ruby-core:70034] [Feature #11371]
-
-Sun Jul 19 14:29:18 2015  windwiny  <windwiny.ubt@gmail.com>
-
-	* ext/pty/pty.c: [DOC] fix example typo, an old name at move from
-	  PTY.open.  [Fix GH-972]
-
-Sat Jul 18 21:29:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread.c (vm_check_ints_blocking): gather common statements at
-	  the end, and prefer LIKELY for Visual C optimization.
-
-Sat Jul 18 20:44:56 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* load.c (rb_load_internal0): do not raise any exceptions but
-	  return the result tag state.
-
-	* load.c (rb_load_protect): reduce nested EXEC_TAGs.
-
-Sat Jul 18 19:52:17 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gc.c (run_finalizer): set and restore safe level here to reduce
-	  nested EXEC_TAGs.
-
-Sat Jul 18 18:45:22 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (ruby_cleanup): error_handle() returns exit status to the
-	  system, not internal error state, do not convert the exit status
-	  again.
-
-Sat Jul 18 10:29:03 2015  Eric Wong  <e@80x24.org>
-
-	* test/ruby/test_process.rb: test thread+sigs work after failed exec
-
-Sat Jul 18 07:20:18 2015  Jeremy Evans  <code@jeremyevans.net>
-
-	* test/socket/test_nonblock: use smaller buffer for sendmsg
-	  [ruby-core:70016] [Bug #11364]
-
-Sat Jul 18 07:04:24 2015  Eric Wong  <e@80x24.org>
-
-	* signal.c (trap_handler): cleanup to use RSTRING_GETMEM + memcmp
-
-Sat Jul 18 02:53:06 2015  Eric Wong  <e@80x24.org>
-
-	* 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]
-
-Fri Jul 17 23:51:31 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_eval.c (rb_eval_cmd): $SAFE=4 has been deprecated.
-
-Fri Jul 17 22:18:09 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (iseq_compile_each): use enum ruby_tag_type names.
-
-	* vm_core.h (ruby_tag_type): move from eval_intern.h for compiling
-	  break/next/redo/return.
-
-Fri Jul 17 15:39:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-	* re.c (rb_reg_expr_str): use ENC_CODERANGE_CLEAN_P.
-
-	* string.c (enc_strlen, rb_enc_cr_str_buf_cat, rb_str_scrub):
-	  ditto.
-
-	* string.c (rb_str_enumerate_chars): ditto, and suppress a warning
-	  by gcc6.
-
-Fri Jul 17 15:36:52 2015  yui-knk  <spiketeika@gmail.com>
-
-	* test/ruby/test_range.rb (test_first_last): Add test for
-	  `Range.new`.  [Fix GH-971]
-
-Fri Jul 17 15:36:40 2015  yui-knk  <spiketeika@gmail.com>
-
-	* test/ruby/test_range.rb (test_first_last): Add assertions to
-	  test of `Range#last` with exclude_end true case.  [Fix GH-970]
-
-Fri Jul 17 09:59:14 2015  Eric Wong  <e@80x24.org>
-
-	* thread.c (rb_thread_alone): simplify
-
-Fri Jul 17 09:58:32 2015  Eric Wong  <e@80x24.org>
-
-	* lib/rinda/tuplespace.rb: remove enumerator require
-	* test/pathname/test_pathname.rb: ditto
-
-Fri Jul 17 05:33:58 2015  Eric Wong  <e@80x24.org>
-
-	* 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
-
-Thu Jul 16 19:12:30 2015  Eric Wong  <e@80x24.org>
-
-	* thread.c (mutex_alloc): remove needless volatile
-
-Thu Jul 16 22:05:29 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: constify rb_iseq_t::parent_iseq.
-
-	  rb_iseq_t::local_iseq is not constant data because
-	  local_iseq::flip_cnt can be modified (commented).
-
-	* compile.c: catch up this fix.
-
-	* iseq.c: ditto.
-
-	* vm_insnhelper.c: ditto.
-
-Thu Jul 16 21:47:47 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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]
-
-	* process.c (dup2_with_divert): new function for the above purpose.
-
-	* 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.
-
-	* thread_win32.c (rb_divert_reserved_fd): always returns 0 because
-	  of no reserved FDs.
-
-	* internal.h (rb_divert_reserved_fd): prototype declaration.
-	  It is Ruby internal use only.
-
-Thu Jul 16 21:47:46 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.c (rb_iseq_disasm): rename rb_iseq_t *iseqdat to iseq
-	  and VALUE *iseq to code.
-
-	* iseq.c (rb_iseq_disasm_insn): ditto.
-
-Thu Jul 16 14:34:24 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm.c (REWIND_CFP): keep the arguments region inside the valid
-	  value stack.  [ruby-core:69969] [Bug #11352]
-
-Thu Jul 16 11:38:21 2015  Eric Wong  <e@80x24.org>
-
-	* process.c (close_unless_reserved): declare type of `fd' arg
-
-Thu Jul 16 08:47:29 2015  Eric Wong  <e@80x24.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]
-
-Thu Jul 16 02:56:14 2015  Eric Wong  <e@80x24.org>
-
-	* thread.c (thread_initialize): avoid RSTRING_PTR and NUMT2INT
-
-Thu Jul 16 01:00:46 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* test/ruby/test_process.rb (test_exec_close_reserved_fd): test for
-	  [Bug #11353]
-
-Thu Jul 16 00:35:42 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* .gitignore: ignore version.i.
-
-Wed Jul 15 23:40:32 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* test/ruby/test_process.rb (test_deadlock_by_signal_at_forking):
-	  use RUBY (= EnvUtil.rubybin)
-
-Wed Jul 15 23:01:22 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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]
-
-	* process.c (close_unless_reserved): new function to close FD unless
-	  it is reserved for internal communication.
-
-	* thread_pthread.c (rb_reserved_fd_p): should check owner_process pid
-	  to avoid false positive in forked child process.
-
-Wed Jul 15 18:31:18 2015  Eric Wong  <e@80x24.org>
-
-	* proc.c (proc_mark): remove redundant check
-	* vm.c (env_mark): ditto
-
-Wed Jul 15 17:27:40 2015  Eric Wong  <e@80x24.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
-
-Wed Jul 15 16:55:04 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* encoding.c (enc_autoload): drop dummy encoding flag from
-	  the loaded encoding index.  this flag is used only in this
-	  source.
-
-Wed Jul 15 14:39:29 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c (vm_make_env_each): add comments about env layout.
-	  Do not use `i' to specify `new_ep'.
-
-	* vm.c (rb_proc_create, rb_vm_make_proc_lambda): envval is not used.
-
-Wed Jul 15 08:59:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gc.h (RUBY_MARK_UNLESS_NULL): evaluate the argument only once
-	  to get rid of inadvertent side effects.
-
-Wed Jul 15 02:53:11 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h, vm.c: remove rb_proc_t::envval because we can know it via
-	  rb_proc_t::block::ep.
-
-	  rb_vm_proc_envval(const rb_proc_t *proc) returns an Env object which
-	  the Proc object use.
-
-	* proc.c: catch up this fix.
-
-	* vm_dump.c (rb_vmdebug_proc_dump_raw): ditto.
-
-Wed Jul 15 02:27:22 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h, vm.c: remove rb_env_t::prev_envval because we can know it
-	  via env->ep.
-
-	  rb_vm_env_prev_envval(env) returns prev_envval via env->ep.
-
-	* 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().
-
-	* proc.c: catch up these changes.
-
-	* vm_dump.c: ditto.
-
-	* vm.c: rename macros.
-
-	  * 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.
-
-Wed Jul 15 01:09:09 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c: refactoring Proc/Env related code.
-
-	* 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.
-
-	* vm.c (vm_make_env_each): make an Env object with this layout.
-	  And also simplify parameters.
-
-	* proc.c: catch up this fix.
-
-	* vm_core.h: remove rb_env_t::local_size because it is not used.
-
-	* vm_dump.c (rb_vmdebug_env_dump_raw): catch up this fix.
-
-	* vm_core.h (rb_vm_make_env_object): remove rb_vm_make_env_object()
-	  because it is only referred from vm.c.
-
-	* vm_eval.c (eval_string_with_cref): catch up this fix.
-
-Wed Jul 15 00:03:36 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* gc.c (__has_feature): move into internal.h.
-
-	* internal.h (__has_feature): ditto.
-
-	* internal.h (__has_extension): new macro.
-
-	* internal.h (STATIC_ASSERT): use _Static_assert with
-	  clang. [ruby-core:69931] [Bug #11343]
-
-Wed Jul 15 00:00:00 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* random.c (fill_random_bytes_syscall): fix compile error with
-	  clang. [ruby-core:69931] [Bug #11343]
-
-Tue Jul 14 11:22:42 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/webrick/utils.rb (WEBrick::Utils::TimeoutHandler#register):
-	  notify the handler thread of new timeout registration.
-
-	* lib/webrick/utils.rb (WEBrick::Utils::TimeoutHandler#initialize):
-	  make sleep intervals adaptive than fixed period intervals.
-
-	* lib/webrick/server.rb (WEBrick::GenericServer#start): flush
-	  shutdown pipe.
-
-	* lib/webrick/server.rb (WEBrick::GenericServer#stop): request the
-	  server to stop immediately by sending data via shutdown pipe.
-
-Mon Jul 13 23:58:08 2015  Stefano Tortarolo  <stefano.tortarolo@gmail.com>
-
-	* lib/webrick/httpproxy.rb (WEBrick::HTTPProxyServer#do_CONNECT):
-	  fix typos in debugger statements.  [Fix GH-967]
-
-Mon Jul 13 19:11:35 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/timeout.rb (timeout): warn as deprecated for a long time.
-
-Mon Jul 13 01:37:27 2015  Zachary Scott  <zzak@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.
-
-Sun Jul 12 09:20:02 2015  Shota Fukumori  <her@sorah.jp>
-
-	* ext/socket/basicsocket.c: [DOC] typo (Errno::AGAIN -> Errno::EAGAIN)
-
-	* ext/socket/socket.c: ditto
-
-	* ext/socket/tcpserver.c: ditto
-
-	* ext/socket/udpsocket.c: ditto
-
-	* ext/socket/unixserver.c: ditto
-
-	* io.c: ditto
-
-Sun Jul 12 06:42:23 2015  ksss  <co000ri@gmail.com>
-
-	* test/stringio/test_stringio.rb (test_sysread): add a test for
-	  StringIO#sysread.  [Fix GH-966]
-
-Sat Jul 11 21:16:34 2015  ksss  <co000ri@gmail.com>
-
-	* ext/stringio/stringio.c (Init_stringio): [DOC] Fix an example,
-	  StringIO#puts should be set "\n" at last.  [Fix GH-965]
-
-Sat Jul 11 12:45:51 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/timeout.rb (Timeout#timeout): remove regexp with wrong line
-	  number and fix caller depth.
-
-Fri Jul 10 22:05:50 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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 Jul 10 17:41:54 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (is_case_sensitive): get attributes by the file descriptor
-	  of open directory, instead of using mount point name.
-
-Fri Jul 10 10:46:02 2015  ksss  <co000ri@gmail.com>
-
-	* ext/stringio/stringio.c (writable): remove unnecessary check for
-	  deprecated safe level 4.  [Fix GH-963]
-
-Thu Jul  9 15:07:12 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (waitpid): return immediately if interrupted.
-	  reported by <takkanm AT gmail.com> [ruby-dev:49176] [Bug #11340]
-
-Thu Jul  9 13:03:46 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_search_super_method): use CI_SET_FASTPATH().
-
-Thu Jul  9 11:07:06 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: remove rb_call_info_t::klass because
-	  rb_callable_method_entry_t has information about defined class.
-
-	* vm_insnhelper.c (vm_search_method): don't set ci->klass because
-	  it is removed.
-
-	* vm_insnhelper.c (rb_equal_opt): ditto.
-
-	* vm_insnhelper.c (vm_search_superclass): removed because it is too
-	  simple to write code directly.
-
-	* vm_insnhelper.c (vm_defined): don't use vm_search_superclass().
-	  This fix avoid searching current callable `me' twice.
-
-	* vm_insnhelper.c (vm_search_super_method): ditto.
-
-Thu Jul  9 10:03:10 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/net/http/responses.rb: Added 308 status to CODE_TO_OBJ list.
-	  [fix GH-961] Patch by @billinghamj
-
-Thu Jul  9 09:34:14 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h (rb_control_frame_t): fix comments (layout index).
-
-Thu Jul  9 09:25:50 2015  Zachary Scott  <e@zzak.io>
-
-	* parse.y: Improve duplicate key warning with patch by @andremedeiros
-	  [Fix GH-938] https://github.com/ruby/ruby/pull/938 [Bug #11327]
-
-Wed Jul  8 07:43:01 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/csv.rb: typo fix [ci skip][fix GH-958] Patch by @henrik
-
-Wed Jul  8 04:42:27 2015  Eric Wong  <e@80x24.org>
-
-	* 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]
-
-Tue Jul  7 18:18:41 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* random.c (fill_random_bytes_syscall): fix compile error.
-
-Tue Jul  7 16:47:30 2015  Eric Wong  <e@80x24.org>
-
-	* compile.c (COMPILE_ERROR): reduce GET_THREAD() calls
-
-Tue Jul  7 16:39:04 2015  Eric Wong  <e@80x24.org>
-
-	* random.c (fill_random_bytes_syscall): return -1 for error
-	* random.c (fill_random_bytes): try urandom on syscall failure
-
-Tue Jul  7 15:02:18 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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 Jul  7 14:40:08 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_backtrace.c: remove debug flag introduced accidentally.
-
-Tue Jul  7 12:05:37 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* cont.c (cont_free): remove mysterious fflush()
-	  introduced at r19890, maybe accidentally.
-
-Tue Jul  7 11:45:14 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* proc.c (rb_method_call): because data->me should be non-NULL,
-	  do not check data->me
-
-	* proc.c (method_inspect): ditto.
-
-Tue Jul  7 11:37:25 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: remove rb_iseq_t::orig because rb_iseq_clone()
-	  no longer exists.
-
-	* iseq.c: don't use rb_iseq_t::orig.
-
-Tue Jul 07 11:25:57 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.c, internal.h (rb_iseq_clone): removed because we don't need to
-	  clone iseq any more.
-
-	* class.c (clone_method): share iseq between cloned methods. All of
-	  method dependent information are able to refer from method entry.
-
-Tue Jul  7 04:42:25 2015  Eric Wong  <e@80x24.org>
-
-	* string.c (Init_String): use rb_str_freeze for String#freeze
-	  to resize internal buffer
-	  [ruby-core:69870] [Feature #11330]
-
-Tue Jul  7 04:12:32 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c (vm_define_method): remove an unused local variable.
-
-Tue Jul  7 03:57:28 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: remove rb_iseq_t::defined_method_id because it is not
-	  needed.
-
-	* eval.c (frame_func_id): simplify. rb_callable_method_entry_t
-	  has enough information.
-
-	* eval.c (frame_called_id): ditto.
-
-	* iseq.c (prepare_iseq_build): catch up this fix.
-
-	* proc.c (rb_mod_define_method): ditto.
-
-	* vm.c (vm_define_method): ditto.
-
-Tue Jul  7 03:47:26 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: remove a useless declaration.
-
-Tue Jul  7 03:33:20 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: remove rb_iseq_t::klass to reduce dynamic data.
-
-	* internal.h, iseq.c (rb_iseq_klass): remove it because
-	  rb_iseq_t::klass is removed.
-
-	* 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.
-
-	* test/ruby/test_method.rb: support super() from Proc.
-	  Now, [Bug #4881] and [Bug #3136] was solved.
-
-	* proc.c (rb_mod_define_method): catch up this change.
-
-	* vm.c (vm_define_method): ditto.
-
-	* vm_backtrace.c (rb_profile_frames): now, each `frame' objects
-	  are rb_callable_method_entry_t data or iseq VALUEs.
-
-	  This fix introduce minor compatibility issue that
-	  rb_profile_frame_label() always returns
-	  rb_profile_frame_base_label().
-
-	* test/-ext-/debug/test_profile_frames.rb: catch up this change.
-
-Tue Jul  7 01:52:14 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* cont.c (fiber_init): initialize control frame correctly.
-	  This fix does not affect any ordinal execution, but
-	  affects debug prints.
-
-Mon Jul  6 17:59:05 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_search_super_method): do not skip calling
-	  same methods in super.
-	  [Bug #3351]
-
-	* test/ruby/test_super.rb: fix a test.
-
-Mon Jul  6 17:59:11 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/tk/tcltklib.c: removed deprecated safe level.
-
-Mon Jul  6 17:16:37 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h, proc.c (rb_method_entry_location): make it static
-	  and remove prefix `rb_' because it is used only in proc.c.
-
-Mon Jul  6 16:42:10 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/lib/memory_status.rb: removed redundant path.
-
-Mon Jul  6 01:18:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/lib/test/unit/parallel.rb: make @@project_dir one level
-	  upper as this file had moved one level deeper.
-
-Sun Jul  5 23:54:10 2015  mizokami  <suzunatsu@yahoo.com>
-
-	* lib/optparse.rb: [DOC] Fix typo.
-
-Sun Jul  5 18:25:37 2015  Eric Wong  <e@80x24.org>
-
-	* gc.c (gc_profile_record_get): fix spelling error in keys
-
-Sun Jul  5 14:49:01 2015  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* README.md: fix a typo pointed out by raoulvdberge.
-	  https://github.com/ruby/ruby/pull/953#commitcomment-11998186
-
-Sun Jul  5 12:56:20 2015  Irvi Firqotul Aini  <viarc7@gmail.com>
-
-	* README.md: Added link HowToReport bugs.
-
-Sun Jul  5 10:51:48 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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]
-
-Sun Jul  5 09:31:40 2015  Eric Wong  <e@80x24.org>
-
-	* test/ruby/test_process.rb: test for fd=3 usability in child
-
-Sat Jul  4 19:43:31 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* Add test case for empty array and first method with args.
-	  Patch by @yui-knk [fix GH-955]
-
-Sat Jul  4 19:39:08 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* Add test for `Enumerable#sort` with block. Patch by @yui-knk
-	  [fix GH-954]
-
-Sat Jul  4 14:38:43 2015  Eric Wong  <e@80x24.org>
-
-	* enum.c (zip_ary): remove volatile, use RB_GC_GUARD
-	  (zip_i): ditto
-
-Sat Jul  4 10:42:57 2015  Nobuyoshi Nakada  <nobu@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]
-
-Sat Jul  4 09:38:52 2015  Eric Wong  <e@80x24.org>
-
-	* vm.c (rb_vm_mark): reduce branches for always-set VM fields
-	  (rb_vm_add_root_module): ditto
-
-Fri Jul 03 20:05:10 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: introduce rb_callable_method_entry_t to remove
-	  rb_control_frame_t::klass.
-	  [Bug #11278], [Bug #11279]
-
-	  rb_method_entry_t data belong to modules/classes.
-	  rb_method_entry_t::owner points defined module or class.
-
-	    module M
-	      def foo; end
-	    end
-
-	  In this case, owner is M.
-
-	  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.
-
-	  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.
-
-	  For example, there are classes C and D, and includes M,
-
-	    class C; include M; end
-	    class D; include M; end
-
-	  then, two T_ICLASS objects for C's super class and D's super class
-	  will be created.
-
-	  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.
-
-	  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).
-
-	  Now, created rb_callable_method_entry_t are collected when
-	  the original module M was modified. We can think it is a cache.
-
-	  We need to select what kind of method entry data is needed.
-	  To operate definition, then you need to use rb_method_entry_t.
-
-	  You can access them by the following functions.
-
-	  * 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);
-
-	  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.
-
-	  * 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);
-
-	  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.
-
-	* method.h: renamed from rb_method_entry_t::klass to
-	  rb_method_entry_t::owner.
-
-	* internal.h: add rb_classext_struct::callable_m_tbl to cache
-	  rb_callable_method_entry_t data.
-
-	  We need to consider about this field again because it is only
-	  active for T_ICLASS.
-
-	* class.c (method_entry_i): ditto.
-
-	* class.c (rb_define_attr): rb_method_entry() does not takes
-	  defined_class_ptr.
-
-	* gc.c (mark_method_entry): mark RCLASS_CALLABLE_M_TBL() for T_ICLASS.
-
-	* cont.c (fiber_init): rb_control_frame_t::klass is removed.
-
-	* proc.c: fix `struct METHOD' data structure because
-	  rb_callable_method_t has all information.
-
-	* vm_core.h: remove several fields.
-	  * rb_control_frame_t::klass.
-	  * rb_block_t::klass.
-
-	  And catch up changes.
-
-	* eval.c: catch up changes.
-
-	* gc.c: ditto.
-
-	* insns.def: ditto.
-
-	* vm.c: ditto.
-
-	* vm_args.c: ditto.
-
-	* vm_backtrace.c: ditto.
-
-	* vm_dump.c: ditto.
-
-	* vm_eval.c: ditto.
-
-	* vm_insnhelper.c: ditto.
-
-	* vm_method.c: ditto.
-
-Fri Jul  3 14:30:18 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/file.c: some mingw compilers need a tweek for the
-	  declarations of _wfreopen_s.  [Bug #11320]
-
-Fri Jul  3 12:25:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* transcode.c (rb_econv_set_replacement): target encoding name can
-	  be empty now.  [ruby-core:69841] [Bug #11324]
-
-Fri Jul  3 07:21:06 2015  Eric Wong  <e@80x24.org>
-
-	* 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]
-
-Fri Jul  3 07:13:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (replace_real_basename): Win32 API does not set errno, get
-	  the last error by GetLastError() and map to errno.  [Bug #10015]
-
-Thu Jul  2 21:32:06 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (replace_real_basename): show warnings at errors.
-	  [Bug #10015]
-
-Thu Jul  2 18:39:20 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c: remove `#define RGENGC_OBJ_INFO 1' line introduced to
-	  debug Bug #11244.
-
-Thu Jul  2 18:34:26 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (rb_raw_obj_info): separated from rb_obj_info().
-	  Fill internal object information into passed buffer.
-
-	* gc.h: declare rb_raw_obj_info().
-
-Thu Jul  2 16:15:04 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (replace_real_basename): update path type by the target
-	  attributes if possible, to improve the performance.  [Bug #10015]
-
-Thu Jul  2 14:45:53 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* 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.
-
-Thu Jul  2 14:15:50 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/rubygems.rb (Gem.load_path_insert_index): search
-	  @gem_prelude_index first.
-
-	* lib/rubygems/test_case.rb (Gem::TestCase#setup): keep already
-	  expanded paths to preserve instance variables.
-
-Thu Jul  2 14:12:01 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (process_options): also copy initial load path marks at
-	  setting load paths encoding.
-
-Thu Jul  2 12:26:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/rubygems/test_gem_server.rb (process_based_port): use
-	  dynamically chosen port numbers to get rid of conflicts.
-
-Thu Jul  2 11:58:59 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/rubygems/test_gem_specification.rb: skip tests which the
-	  platform does not permit the filename of its test file.
-
-Thu Jul  2 11:36:20 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-Thu Jul  2 10:43:36 2015  Eric Wong  <e@80x24.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]
-
-Thu Jul  2 10:30:01 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rubygems/resolver.rb: fixed NameError of Gem::Util::NULL_DEVICE.
-
-Thu Jul  2 09:51:44 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rubygems/resolver.rb: fix error of null device reference with DOSISH
-	  platform.
-
-Thu Jul  2 06:49:44 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rubygems: Update to RubyGems HEAD(c202db2).
-	  this version contains many enhancements see http://git.io/vtNwF
-	* test/rubygems: ditto.
-
-Wed Jul  1 23:50:34 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* test/net/http/test_httpresponse.rb
-	(HTTPResponseTest#test_read_body_content_encoding_deflate_uppercase):
-	fix a failure without zlib.
-
-Wed Jul  1 10:54:56 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* Add test for Enumerable#none? [fix GH-950] Patch by @yui-knk
-
-Wed Jul  1 09:30:36 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-Wed Jul  1 09:28:47 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* struct.c (struct_member_pos): revert r51080 to fix other
-	  implicit conversions but cast the return value to fix the
-	  previous implicit conversion.
-
-Wed Jul  1 08:47:24 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* struct.c (struct_member_pos): avoid implicit conversion loses
-	  integer precision: 'long' to 'int'.
-
-Wed Jul  1 05:57:03 2015  Eric Wong  <e@80x24.org>
-
-	* 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
-
-Wed Jul  1 05:43:58 2015  Eric Wong  <e@80x24.org>
-
-	* 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]
-
-Tue Jun 30 23:12:08 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (rb_io_reopen): FilePathValue() ensures the path
-	  NUL-terminated and frozen, so it is unnecessary to make it shared.
-
-Tue Jun 30 23:11:53 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (check_dirname): ensure path name NUL-terminated for
-	  SHARABLE_MIDDLE_SUBSTRING.
-
-	* io.c (rb_sysopen): ditto.
-
-Tue Jun 30 18:38:16 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/file.c (rb_freopen): need to terminate by NUL.
-
-Tue Jun 30 17:28:25 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (rb_io_reopen): freopen(3) with OS encoding path.
-	  [ruby-core:69780] [Bug #11320]
-
-	* win32/file.c (rb_freopen): wrapper of wchar version freopen(3).
-	  use _wfreopen_s() if available.
-
-Tue Jun 30 08:24:08 2015  Eric Wong  <e@80x24.org>
-
-	* 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]
-
-Tue Jun 30 02:47:02 2015  Eric Wong  <e@80x24.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]
-
-Mon Jun 29 17:38:01 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* insns.def (defineclass): do not quote unprintable characters at
-	  raising an exception.
-
-Mon Jun 29 16:01:24 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/net/http/response.rb (inflater): CONTENT_ENCODING can be upper
-	  case. [ruby-core:69670] [Bug #11285] patched by Andy Chu
-
-Mon Jun 29 14:50:08 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (add_activated_refinement): should not include the original
-	  class.
-
-Mon Jun 29 12:09:10 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* README.md: tweak styles. [fix GH-945][ci skip] Patch by @bryndyment
-
-Mon Jun 29 07:23:55 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-Mon Jun 29 02:10:10 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* insns.def (defineclass): preserve encoding of name in error
-	  messages for super class mismatch.
-
-	* insns.def (defineclass): preserve encoding of name in error
-	  messages for non-class super.
-
-	* insns.def (defineclass): preserve encoding of name in error
-	  messages when already defined but type mismatch.
-
-Sun Jun 28 12:07:35 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* class.c (rb_define_class_id_under): raise TypeError exception
-	  same as ruby level class definition when superclass mismatch.
-
-Sun Jun 14 19:02:03 2015  Benoit Daloze  <eregontp@gmail.com>
-
-	* lib/net/ftp.rb (makeport): close the TCPServer
-	  when sending the port fails.
-
-	* test/net/ftp/test_ftp.rb: test for above.
-
-Fri Jun 26 12:48:37 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* transcode.c (load_transcoder_entry): fix transcoder loading race
-	  condition, by waiting in require.  [ruby-dev:49106] [Bug #11277]
-
-Fri Jun 26 07:53:56 2015  Eric Wong  <e@80x24.org>
-
-	* 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
-
-Thu Jun 25 21:24:28 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* test/-ext-/popen_deadlock/test_popen_deadlock.rb: test [Bug #11265]
-
-	* ext/-test-/popen_deadlock/infinite_loop_dlsym.c: new ext to call
-	  dlsym(3) infinitely without GVL, used in the above test.
-
-	* 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).
-
-Thu Jun 25 19:24:25 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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]
-
-Thu Jun 25 18:25:41 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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.
-
-	* test/lib/memory_status.rb (Memory::NO_MEMORY_LEAK_ENVS): ditto.
-
-Thu Jun 25 17:32:33 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_method.c (rb_method_entry_create): need to call
-	  method_definition_reset() if def is given.
-
-	  Actually, `me' is a new object, so we don't need to call it.
-	  It is just to make sure.
-
-	* vm_method.c (method_definition_reset): remove duplicated insertion.
-
-	* vm_method.c (rb_method_entry_clone): assign dst->def here,
-	  not in method_definition_reset().
-
-Thu Jun 25 16:44:54 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_method.c: make a rb_method_definition_t data (def) *after* making
-	  a rb_method_entry_t data (me).
-
-	  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'.
-
-	  I hope this patch solve #11244.
-
-	* vm_method.c: remove `rb_' prefix from some static functions.
-
-	* method.h (rb_method_entry_create): constify
-
-	* gc.c (mark_method_entry): add checking `def' and
-	  `def->body.iseq.iseqptr' availability because they can be NULL.
-
-Thu Jun 25 14:14:16 2015  takiy33  <takiy33@gmail.com>
-
-	* test/test_prime.rb (test_eratosthenes_works_fine_after_timeout):
-	  use spaces instead of TABs in ruby codes.  [Fix GH-944]
-
-Thu Jun 25 07:08:35 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (obj_info, method_type_name): show method type name in a string
-	  instead of a number.
-
-Thu Jun 25 06:49:25 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (obj_info): show more details for T_IMEMO/imemo_ment.
-
-Thu Jun 25 06:40:46 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_method.c (rb_method_definition_reset): need a WB for
-	  VM_METHOD_TYPE_ATTRSET.
-
-Thu Jun 25 03:33:21 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (RGENGC_OBJ_INFO, obj_info): add a macro to enable/disable
-	  rich obj_info() output.
-
-	  At the default, the value of RGENGC_OBJ_INFO is
-	  (RGENGC_DEBUG | RGENGC_CHECK_MODE).
-
-	* gc.c (RGENGC_OBJ_INFO): force enable it to debug #11244.
-
-	* gc.c (gc_mark_ptr): print more details with obj_info().
-
-	* gc.c (gc_mark_children): remove useless debug prints.
-
-Thu Jun 25 02:40:33 2015  Eric Wong  <e@80x24.org>
-
-	* ext/openssl/ossl_ssl.c (ossl_ssl_read_internal):
-	  do not process kwargs in blocking mode
-	* test/openssl/test_ssl.rb: test sysread
-
-Wed Jun 24 16:54:11 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (gc_mark_children): add additional debug code for #11244.
-
-Wed Jun 24 16:05:42 2015  Eric Wong  <e@80x24.org>
-
-	* string.c (rb_str_justify): use RB_GC_GUARD
-
-Wed Jun 24 14:25:17 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (gc_mark_ptr): add a check code for #11244.
-
-	  It should be removed later. But we can remain this check
-	  because it is only a branch.
-
-Wed Jun 24 12:49:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_fstring_cstr): new function to make a fstring from
-	  a string literal.
-
-	* internal.h (rb_fstring_lit): new macro to make a fstring from a
-	  string literal.
-
-	* include/ruby/intern.h (rb_strlen_lit): new macro to get the
-	  length of a string literal, borrowed from mruby/mruby@e4afd53.
-
-Wed Jun 24 12:21:16 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* re.c: Update documentation for Regexp class.
-	  [fix GH-937][ci skip] Patch by @davydovanton
-
-Wed Jun 24 09:23:03 2015  Eric Wong  <e@80x24.org>
-
-	* variable.c (generic_ivar_set): remove FL_ABLE check
-	  (gen_ivar_copy): ditto
-	  [ruby-core:69715]
-
-Wed Jun 24 08:28:15 2015  Eric Wong  <e@80x24.org>
-
-	* ext/socket/ancdata.c (bsock_recvmsg_internal): reduce stack use
-	  [ruby-core:69595] [Feature #11263]
-
-Tue Jun 23 14:32:42 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (name_err_receiver): raise ArgumentError if no receiver
-	  is available on this exception object.  [Feature #10881]
-
-Tue Jun 23 09:48:34 2015  Eric Wong  <e@80x24.org>
-
-	* dir.c (check_dirname): avoid volatile, use return value
-	  (dir_s_chroot, dir_s_mkdir, dir_s_rmdir): adjust callers
-
-Tue Jun 23 06:37:10 2015  Eric Wong  <e@80x24.org>
-
-	* 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
-
-Tue Jun 23 04:58:06 2015  Eric Wong  <e@80x24.org>
-
-	* 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
-
-Mon Jun 22 18:08:48 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* test/lib/test/unit.rb (Test::Unit::Parallel#start_watchdog): removed
-	  because it has been meaningless since r36385. [Bug #11288]
-
-	* test/lib/test/unit.rb (Test::Unit::Parallel#_run_parallel): delete
-	  lines related to the removed start_watchdog method
-
-Sun Jun 21 23:52:46 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* NEWS: mention about Array#bsearch_index and Hash#fetch_values.
-
-Sun Jun 21 23:46:27 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* NEWS: add a reference to a ticket.
-
-Sun Jun 21 20:28:09 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* internal.h (roomof): extract from type_roomof, and move from
-	  bignum.c.
-
-Sun Jun 21 18:32:37 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby_atomic.h (ATOMIC_PTR_CAS): define by generic CAS macro, not
-	  via size_t, to suppress a warning by mingw gcc.
-
-Sun Jun 21 05:31:41 2015  Shota Fukumori  <her@sorah.jp>
-
-	* 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]
-
-	* test/objspace/test_objspace.rb(test_dump_special_consts): Test for above fix.
-
-
-Sat Jun 20 03:56:58 2015  Yusuke Endoh  <mame@ruby-lang.org>
-
-	* enc/make_encmake.rb: the list of encoding extension libraries must
-	  not include encinit.c itself.  It caused "undefined reference to
-	  Init_encinit".
-
-Sat Jun 20 02:03:53 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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]
-
-	* 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.
-
-	* 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.
-
-Sat Jun 20 01:10:13 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* NEWS: mention about $SAFE.
-
-Fri Jun 19 14:53:35 2015  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]
-
-Fri Jun 19 13:54:43 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* proc.c (rb_mod_define_method): get rid of inadvertent ID
-	  creations at error.
-
-Fri Jun 19 07:58:11 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb: if no with-ext option is given, default to
-	  enable everything.  [ruby-dev:49108] [Bug #11280]
-
-Fri Jun 19 06:30:07 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* bootstraptest/test_method.rb: remove a test because $SAFE=2 was
-	  obsolete.
-
-	  Please check btest, too.
-
-Thu Jun 18 23:51:51 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* bin/erb: $SAFE=3 is obsolete.
-
-Thu Jun 18 23:45:11 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* safe.c: removed needless doc related $SAFE=2
-
-Thu Jun 18 23:38:07 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* thread.c (rb_thread_safe_level): fix document.  $SAFE=3 is obsolete.
-	  [ci skip]
-
-Thu Jun 18 23:25:51 2015  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]
-
-Thu Jun 18 23:20:46 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* include/ruby/ruby.h: $SAFE=2 is now obsolete.
-
-	* 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
-
-	* test/erb/test_erb.rb, test/fiddle/test_handle.rb
-	  test/ruby/test_env.rb: removed tests for $SAFE=2.
-
-Thu Jun 18 22:50:07 2015  Yusuke Endoh  <mame@ruby-lang.org>
-
-	* enc/make_encmake.rb: added --transes and --no-transes options.
-
-Thu Jun 18 18:24:12 2015  Eric Wong  <e@80x24.org>
-
-	* test/socket/test_unix.rb: replace sleep with select
-
-Thu Jun 18 17:59:06 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c (rb_vm_control_frame_id_and_class): remove useless codes.
-	  `me' knows ID and owner class.
-
-Thu Jun 18 16:58:35 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: constify rb_method_alias_struct::original_me and
-	  rb_method_refined_struct::orig_me.
-
-	* class.c (move_refined_method): use RB_OBJ_WRITE() for
-	  me->def->body.refined.orig_me.
-
-Thu Jun 18 14:35:28 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* ext/objspace/objspace.c (count_imemo_objects): support imemo_ment.
-
-Thu Jun 18 13:32:46 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (name_err_receiver): add NameError#receiver method.
-	  [Feature #10881]
-
-Thu Jun 18 10:00:06 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* safe.c: removed needless doc related $SAFE=3
-
-Thu Jun 18 09:59:23 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* safe.c: rename old method name for $SAFE=3
-
-Thu Jun 18 06:02:42 2015  Eric Wong  <e@80x24.org>
-
-	* compile.c (get_exception_sym2type, iseq_build_from_ary_body):
-	  rely on %+PRIsVALUE instead of calling rb_inspect directly
-
-Wed Jun 17 20:59:25 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (ENC_MK): needs fake.rb if cross compilation.
-	  [ruby-dev:49098] [Bug #11272]
-
-Wed Jun 17 20:23:29 2015  Tanaka Akira  <akr@fsij.org>
-
-	* ext/rbconfig/sizeof/extconf.rb: Check __float80.
-
-Wed Jun 17 15:15:53 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* safe.c (safe_setter): of course, don't have to warn the limitation of
-	  $SAFE=3 after it's removed.
-
-Wed Jun 17 14:29:43 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* include/ruby/ruby.h: $SAFE=3 is now obsolete.
-
-	* 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
-
-	* 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
-
-Wed Jun 17 12:13:33 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ChangeLog: added contributor name.
-
-Wed Jun 17 10:57:28 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/csv.rb: accept to use Range object for row selection.
-	  contributed by Mitsutaka Mimura.
-	  [Feature #11267][ruby-dev:49091]
-
-Wed Jun 17 09:50:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/rdoc/servlet.rb (documentation_search, root_search):
-	  requires json for JSON.dump and fix sporadic failures due to
-	  the loading order.
-
-Tue Jun 16 19:19:53 2015  Tanaka Akira  <akr@fsij.org>
-
-	* ext/rbconfig/sizeof/extconf.rb: Check several types defined in C99
-	  and x86_64 ABI.
-
-	* template/sizes.c.tmpl: Relax a pattern for types.
-
-Tue Jun 16 17:37:01 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* test/objspace/test_objspace.rb: relax pattern because uncollectible
-	  flag and marked flag can be false at major GC.
-	  [Bug #10852]
-
-Tue Jun 16 04:50:44 2015  Eric Wong  <e@80x24.org>
-
-	* 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]
-
-Tue Jun 16 04:38:02 2015  Eric Wong  <e@80x24.org>
-
-	* 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]
-
-Mon Jun 15 14:33:02 2015  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/set.rb: Make Set#each and SortedSet#each generate a sized
-	  enumerator. [GH-931] by kachick (Kenichi Kamiya)
-
-	* test/test_set.rb: Import tests from Set into SortedSet. [GH-931]
-	  by kachick (Kenichi Kamiya)
-
-Mon Jun 15 02:26:34 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/net/http.rb (Net::HTTP#connect): use connect_nonblock and
-	  io/wait to eliminate timeout use. fix GH-899
-
-Sat Jun 13 07:21:18 2015  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
-
-	* 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/-ext-/gvl/test_last_thread.rb: new test for the above fix.
-
-	* 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.
-
-Mon Jun 15 00:14:33 2015  Tanaka Akira  <akr@fsij.org>
-
-	* ext/pathname/lib/pathname.rb (descend): Blockless form supported.
-	  (ascend): Ditto.
-	  [ruby-core:68820] [Feature #11052] Patch by Piotr Szotkowski.
-
-Sun Jun 14 20:09:25 2015  Tanaka Akira  <akr@fsij.org>
-
-	* time.c (time_getlocaltime): [DOC] Add examples of valid utc_offset
-	  formats.
-	  [ruby-core:68306] [Misc #10905] Patch by Charles Korn.
-
-Sun Jun 14 18:49:56 2015  Tanaka Akira  <akr@fsij.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].
-
-Sun Jun 14 17:26:03 2015  Tanaka Akira  <akr@fsij.org>
-
-	* enum.c (enum_chunk_while): New method Enumerable#chunk_while.
-	  [ruby-core:67738] [Feature #10769] proposed by Tsuyoshi Sawada.
-
-Sun Jun 14 17:20:40 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_file_load_ok): try opening file without gvl not to
-	  lock entire process.  [Bug #11060]
-
-Sun Jun 14 10:43:50 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* 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`.
-
-Sun Jun 14 10:13:55 2015  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rexml/source.rb (REXML::IOSource#scan): Fix a typo in
-	  document. [fix GH-934]
-	  Patch by Anton Davydov. Thanks!!!
-
-Sun Jun 14 10:09:48 2015  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rexml/attlistdecl.rb (REXML::AttlistDecl): Fix a typo in
-	  document. [fix GH-934]
-	  Patch by Anton Davydov. Thanks!!!
-
-Sun Jun 14 06:24:57 2015  Benoit Daloze  <eregontp@gmail.com>
-
-	* test/ruby/test_io.rb: add test for IO.binread fd leak.
-	  See r50881.
-
-Sun Jun 14 05:23:51 2015  Benoit Daloze  <eregontp@gmail.com>
-
-	* io.c (rb_io_s_binread): close fd if seek offset is invalid.
-
-Sun Jun 14 04:40:32 2015  Benoit Daloze  <eregontp@gmail.com>
-
-	* test/lib/leakchecker.rb (check): refactor.
-
-Sun Jun 14 04:34:14 2015  Benoit Daloze  <eregontp@gmail.com>
-
-	* test/lib/leakchecker.rb: Return false for no leaks.
-	  Otherwise the GC could run for nothing.
-
-Sun Jun 14 04:15:40 2015  Benoit Daloze  <eregontp@gmail.com>
-
-	* lib/delegate.rb: [DOC] Update SimpleDelegator example. [ci skip]
-
-Sat Jun 13 20:28:14 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* file.c (rb_stat_ino): get inode from the interval of struct st.
-
-	* win32/win32.c (stati64_set_inode): get nFileIndexHigh/Low, and set it
-	  to the interval of struct st as inode.
-	  [Feature #11216]
-
-	* win32/win32.c (stati64_set_inode_handle): call stati64_set_inode.
-
-	* win32/win32.c (rb_w32_fstati64): call stati64_set_inode_handle.
-
-	* win32/win32.c (stati64_handle): call stati64_set_inode.
-
-Sat Jun 13 19:44:53 2015  NAKAMURA Usaku  <usa@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).
-
-Sat Jun 13 17:35:11 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* vm_core.h (rb_thread_t): add th->name.
-
-	* vm.c (th_init): initialize th->name.
-
-	* thread.c (Init_Thread): add Thread.name and name=. [Feature #11251]
-
-	* thread.c (rb_thread_inspect): show thread's name if set.
-
-	* thread.c (rb_thread_getname): defined.
-
-	* thread.c (rb_thread_setname): ditto.
-
-Sat Jun 13 11:39:43 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/tempfile.rb: Fix typo. [fix GH-933] Patch by @Zorbash
-
-Sat Jun 13 11:38:00 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/openssl/ossl_ocsp.c: fix documentation on ocsp response cert status.
-	  [fix GH-932] Patch by @chrisholmes
-
-Sat Jun 13 11:35:19 2015  SHIBATA Hiroshi  <hsbt@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.
-
-Sat Jun 13 00:45:08 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/prime.rb: Return sized enumerators.
-	  Patch by Kenichi Kamiya [GH-931]
-
-Sat Jun 13 00:45:06 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/prime.rb: Fix with_object with no block given
-
-Sat Jun 13 00:44:59 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/prime.rb: Have with_index accept an offset parameter.
-	  Based on patch by T Yamada. [#11007]
-
-Fri Jun 12 22:21:12 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* test/ruby/test_extlibs.rb (TestExtLibs::check_existence): fix
-	  error. [Bug #11255] [ruby-dev:49079]
-
-Fri Jun 12 21:17:46 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* pack.c (pack_{un,}pack): new template character `j` and `J`, pointer
-	  with signed and unsigned integers.
-
-	* NEWS: mention about this feature.
-	  [Feature #11215] [ruby-dev:49015]
-
-Fri Jun 12 21:01:44 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* file.c (File::SHARE_DELETE): new flag to be able to delete opened file
-	  on Windows.
-
-	* include/win32/win32.c (O_SHARE_DELETE): new pseudo file mode flag.
-
-	* win32/win32.c (rb_w32_{w,}open): support above flag.  [EXPERIMENTAL]
-
-	* NEWS: mention about this feature.
-	  [Feature #11218] [ruby-dev:49022]
-
-Fri Jun 12 18:21:45 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ChangeLog: added missing commit message.
-
-Fri Jun 12 18:20:37 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* sample/exyacc.rb: Fix some typos. [fix GH-927] Patch by @davydovanton
-	* sample/list.rb: ditto.
-	* sample/trick2013/kinaba/remarks.markdown: ditto.
-
-Fri Jun 12 17:34:14 2015  Wojciech Mach  <wojtek@wojtekmach.pl>
-
-	* hash.c (rb_hash_fetch_values): add `Hash#fetch_values`.
-	  [Feature #10017] [Fix GH-776]
-
-Fri Jun 12 16:28:17 2015  Radan Skoric  <radan.skoric@gmail.com>
-
-	* array.c (rb_ary_bsearch_index): Implement Array#bsearch_index
-	  method, which is similar to bsearch and returns the index or
-	  nil.  [Feature #10730]
-
-Thu Jun 11 19:11:22 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/zlib/zlib.c: Fix indentation for rdoc.
-	  [Bug #11221][ruby-core:69465]
-
-Thu Jun 11 16:23:37 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h (METHOD_ENTRY_BASIC_SET): fix last commit (unbalanced parens).
-
-Thu Jun 11 15:14:16 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* 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.
-
-	* thread_pthread.c (SET_THREAD_NAME): don't define if they don't exist.
-
-	* thread_pthread.c (native_set_thread_name): run if SET_THREAD_NAME
-	  is defined.
-
-Thu Jun 11 15:53:31 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h (METHOD_ENTRY_BASIC_SET): should clear last bit.
-
-Thu Jun 11 14:34:45 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* 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 Jun 11 14:18:51 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rubygems.rb: bump version to 2.4.6. It's missing change at r49774.
-
-Thu Jun 11 13:50:19 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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]
-
-	* array.c (ary_ensure_room_for_unshift, rb_ary_splice): ditto.
-
-Thu Jun 11 13:17:34 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/test_cmath.rb (TestCMath#test_trigonometric_functions): should
-	  not compare float values (in complex values) by `==`.
-
-Thu Jun 11 08:52:01 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: embed rb_method_entry_t::attr::flags (5 bits) into
-	  rb_method_entry_t::flags to make one word spare space.
-
-	  Add some macros to access these flags.
-
-	* vm_method.c: use these macros.
-
-	* internal.h: define IMEMO_FL_USHIFT and IMEMO_FL_USER[0-4]
-	  for T_IMEMO local flags.
-
-Thu Jun 11 08:27:06 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c: use VM_ASSERT instead of assert().
-
-	* vm_args.c: ditto.
-
-	* vm_insnhelper.c: ditto.
-
-	* vm_method.c: ditto.
-
-Thu Jun 11 08:16:48 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: define VM_ASSERT() for assertion
-	  enabled only when (VM_CHECK_MODE > 0).
-
-	* vm_insnhelper.c: move definition VM_CHECK_MODE
-	  from vm_insnhelper.c to vm_core.h.
-
-	* vm.c: remove <assert.h>
-
-Thu Jun 11 06:46:07 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (check_frame): check type of cref_or_me first.
-
-Thu Jun 11 04:34:39 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
-
-	* test/test_cmath.rb: Add some assertions.
-
-Thu Jun 11 00:34:39 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* template/fake.rb.in: expanded macro result may have spaces
-	  between tokens.  [ruby-dev:49047] [Bug #11243]
-
-Wed Jun 10 22:27:32 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* lib/mkmf.rb: revert r50804 because of build failure when specifying
-	  LDFLAGS during configure, observed on Solaris with GCC 4.6.
-	  [Bug #11245]
-
-Wed Jun 10 21:59:51 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* README.ja.md: fix markup miss.
-
-Wed Jun 10 11:06:25 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* template/fake.rb.in: turn into erb template from autoconf
-	  template to fake more accurately.
-
-	* common.mk (fake.rb): needs preprocessed file now.
-
-	* version.c (Init_version): add dummy expression to
-	  RUBY_ENGINE_VERSION.
-
-Tue Jun  9 12:31:25 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/prime.rb: Simplify and optimize EratosthenesSieve
-
-Tue Jun  9 11:45:00 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/prime.rb: Simplify and optimize EratosthenesSieve
-	  based on patch by Ajay Kumar. [Fixes GH-921]
-
-Mon Jun  8 05:09:58 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (obj_info): print method id for T_IMEMO/ment.
-
-Sun Jun  7 07:05:43 2015  Kazuki Tanaka  <gogotanaka@ruby-lang.org>
-
-	* Move test cases from test/ruby/test_complex.rb to test/test_cmath.rb
-
-Sat Jun  6 18:23:41 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: back to share rb_method_definition_t by
-	  rb_method_entry_t.
-
-	  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.
-
-	* method.h: move rb_method_definition_t::flags to
-	  rb_method_entry_t::attr::flags.
-
-	  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).
-
-	  And also add the following access macros to it's fields.
-
-	  * METHOD_ENTRY_VISI(me)
-	  * METHOD_ENTRY_BASIC(me)
-	  * METHOD_ENTRY_SAFE(me)
-
-	* vm_method.c (rb_method_definition_addref): added instead of
-	  rb_method_definition_clone().
-
-	  Do not create new definition, but increment alias_count.
-
-	* class.c (clone_method): catch up this fix.
-
-	* class.c (method_entry_i): ditto.
-
-	* proc.c (mnew_internal): ditto.
-
-	* proc.c (mnew_missing): ditto.
-
-	* vm_eval.c: ditto.
-
-	* vm_insnhelper.c: ditto.
-
-	* vm_method.c: ditto.
-
-Sat Jun  6 15:59:38 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* class.c: ins_methods_push() needs rb_method_visibility_t type on
-	  2nd arg.
-
-Sat Jun  6 15:05:47 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* class.c (ins_methods_push): Change type and name of parameters
-	  to make more clear.
-
-Sat Jun  6 08:52:13 2015  Eric Wong  <e@80x24.org>
-
-	* test/socket/test_nonblock.rb: try to avoid EMSGSIZE
-	  [ruby-core:69466]
-
-Sat Jun  6 07:58:30 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c: remove struct mark_tbl_arg and pass objspace directly
-	  to avoid indirect access overhead.
-
-Sat Jun  6 07:08:45 2015  Eric Wong  <e@80x24.org>
-
-	* ext/socket/ancdata.c (bsock_sendmsg_internal): drop redundant assignment
-
-Sat Jun  6 01:00:06 2015  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* 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]
-
-Fri Jun  5 22:37:42 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* class.c (ins_methods_push): change 3rd parameter's type
-	  from long to rb_method_visibility_t.
-
-	* class.c (ins_methods_i): catch up this fix.
-
-	* class.c (method_entry_i): cast to st_data_t instead of `long'.
-
-Fri Jun  5 20:37:10 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* internal.h: move definition of rb_cref_t to method.h.
-
-	* eval_intern.h: move definition of rb_scope_visibility_t
-	  to method.h.
-
-	* method.h: change rb_cref_t::scope_visi from VALUE to
-	  rb_scope_visibility_t.
-	  [Bug #11219]
-
-	* vm.c (vm_cref_new): accept rb_method_visibility_t directly.
-
-	* vm_insnhelper.c (rb_vm_rewrite_cref): don't use 0,
-	  but METHOD_VISI_UNDEF.
-
-	* vm_method.c (rb_scope_visibility_set): don't need to use cast.
-
-	* vm_method.c (rb_scope_module_func_set): ditto.
-
-Fri Jun  5 17:27:30 2015  Eric Wong  <e@80x24.org>
-
-	* ext/socket/ancdata.c (bsock_sendmsg_internal): avoid msg_control
-	  ptr if msg_controllen is zero to fix portability problems.
-
-Fri Jun  5 09:17:45 2015  Eric Wong  <e@80x24.org>
-
-	* ext/socket/ancdata.c (bsock_sendmsg_internal): fix build error
-	  from r50776
-
-Fri Jun  5 07:05:58 2015  Eric Wong  <e@80x24.org>
-
-	* 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
-
-Fri Jun  5 06:43:00 2015  Eric Wong  <e@80x24.org>
-
-	* doc/extension.rdoc: note rb_get_kwargs changes keywords_hash
-	  [ruby-core:68507]
-
-Fri Jun  5 05:50:29 2015  Eric Wong  <e@80x24.org>
-
-	* ext/socket/ancdata.c (bsock_sendmsg_internal): use rb_scan_args
-	  [ruby-core:69439] [Feature #11207]
-
-Fri Jun  5 02:20:06 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* 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.
-
-Fri Jun  5 01:17:21 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_defined): no need to use cast.
-
-Fri Jun  5 01:14:02 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_defined): show additional messages on rb_bug().
-
-Fri Jun  5 01:06:02 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_method.c (rb_add_method_iseq): use intermediate struct to
-	  avoid initializing struct with variables.
-	  [Bug #11217]
-
-	* method.h: add a comment about it.
-
-Fri Jun  5 00:55:21 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: constify rb_method_refined_t::orig_me.
-
-	  Also constify the following functions.
-
-	  * rb_resolve_refined_method()
-	  * rb_method_entry_with_refinements()
-	  * rb_method_entry_without_refinements()
-	  * rb_method_entry_copy()'s parameter.
-
-	* class.c: catch up this fix.
-
-	* vm_insnhelper.c: ditto.
-
-	* vm_method.c: ditto.
-
-Thu Jun  4 12:47:54 SGT 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* array.c: Revert r50763. because "reentered" is not typo.
-
-Thu Jun  4 11:12:29 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/win32ole/win32ole.c: fix a typo. Patch by @davydovanton
-	  [fix GH-923]
-	* include/ruby/st.h: ditto.
-	* include/ruby/util.h: ditto.
-
-Thu Jun  4 10:54:30 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* array.c: fix a typo. Patch by @manish-shrivastava
-	  [fix GH-922]
-
-Thu Jun  4 09:52:02 2015  Eric Wong  <e@80x24.org>
-
-	* ext/openssl/lib/openssl/ssl.rb: use io/nonblock instead of fcntl
-	  [ruby-core:69382] [Feature #11190]
-
-Thu Jun  4 07:22:45 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: introduce rb_method_refined_t for refined method entry.
-
-	* class.c (move_refined_method): catch up this fix.
-
-	* gc.c (mark_method_entry): ditto.
-
-	* vm_eval.c (vm_call0_body): ditto.
-
-	* vm_insnhelper.c (vm_call_method): ditto.
-
-	* vm_method.c: ditto.
-
-Thu Jun  4 07:12:20 2015  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]
-
-Thu Jun  4 05:44:01 2015  Eric Wong  <e@80x24.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]
-
-Thu Jun  4 05:13:34 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (def_iseq_ptr): `iseqval' is not available any more.
-
-Thu Jun  4 04:50:12 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* class.c (method_entry_i): mtbl should not have `me' as NULL.
-
-Thu Jun  4 04:28:45 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* class.c (clone_method): do not use me->klass, but use explicitly
-	  passed argument.
-
-Thu Jun  4 04:10:43 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h (rb_vm_rewrite_cref_stack): rename to rb_vm_rewrite_cref().
-
-	* class.c (clone_method): use renamed name.
-
-	* vm_insnhelper.c (rb_vm_rewrite_cref): do not use `node' in variable
-	  names.
-
-Wed Jun  3 23:03:50 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_method.c: rename `rb_frame_...' to `rb_scope_...'.
-
-	* eval_intern.h: move decl. of rb_scope_visibility_set() to method.h.
-
-	* load.c: catch up this fix.
-
-Wed Jun  3 21:14:20 2015  Tanaka Akira  <akr@fsij.org>
-
-	* ext/rbconfig/sizeof/extconf.rb: Check C99 standard integer types.
-
-Wed Jun  3 21:00:47 2015  Tanaka Akira  <akr@fsij.org>
-
-	* configure.in: Don't check __int128.
-
-	* ext/rbconfig/sizeof/extconf.rb: Check __int128.
-
-	* ext/rbconfig/sizeof/depend: sizes.c depends on
-	  ext/rbconfig/sizeof/extconf.rb.
-
-	* template/sizes.c.tmpl: Detect check_sizeof.
-
-Wed Jun  3 20:07:07 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* class.c (clone_method): remove redundant check for me->def != NULL.
-	  Now, all `me` have `me->def`.
-
-	* proc.c (rb_method_entry_location): ditto.
-
-	* vm.c (rb_vm_check_redefinition_opt_method): ditto.
-
-	* vm.c (add_opt_method): ditto.
-
-	* vm_eval.c (vm_call0_body): ditto.
-
-Wed Jun  3 19:24:12 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: rename enum missing_reason to enum method_missing_reason.
-
-	* vm_core.h: use enum method_missing_reason for
-	  rb_thread_t::method_missing_reason.
-
-	* vm_eval.c: catch up this fix.
-
-	* vm_insnhelper.c: ditto.
-
-Wed Jun  3 16:17:21 2015  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* 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
-
-	* load.c: remove various NULL checks
-
-Wed Jun  3 11:47:15 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: change fields order to gather frequent access fields.
-
-	* vm_insnhelper.c (vm_call_method): add LIKELY().
-
-Wed Jun 03 10:35:45 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: split rb_method_definition_t::flag to several flags.
-
-	  `flag' contains several categories of attributes and it makes us
-	  confusion (at least, I had confused).
-
-	  * 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)
-
-	  Now, NOEX_NOREDEF is not supported (I'm not sure it is needed).
-
-	  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.
-
-	* vm_core.h: introduce `enum missing_reason' to represent
-	  method_missing (NoMethodError) reason.
-
-	* eval_intern.h: introduce rb_scope_visibility_t to represent
-	  scope visibility.
-	  It has 3 method visibilities (public/private/protected)
-	  and `module_function`.
-
-Wed Jun  3 08:06:30 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* gem/bundled_gems: updated to test-unit 3.1.1 and minitest 5.7.0.
-
-Wed Jun  3 04:48:05 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_defined): check respond_to_missing?
-	  at defined?(func()).
-	  [Bug #11212]
-
-	* test/ruby/test_defined.rb: add a test for this fix.
-
-Wed Jun  3 04:34:39 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c (vm_defined): skip respond_to_missing? when
-	  a method is available.
-	  [Bug #11211]
-
-	* test/ruby/test_defined.rb: add a test for this fix.
-
-Wed Jun  3 04:14:13 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* insns.def (defined), vm_insnhelper.c (vm_defined):
-	  move instruction body to the vm_defined() function.
-
-Wed Jun  3 02:29:25 2015  Benoit Daloze  <eregontp@gmail.com>
-
-	* test/ruby/test_module.rb: Do not assume class variable order.
-	  Patch by @enebo.
-
-Wed Jun  3 01:10:38 2015  Yusuke Endoh  <mame@tsg.ne.jp>
-
-	* vm_method.c (rb_method_definition_set): remove a double assignment.
-	  Coverity Scan found this bug.
-
-Wed Jun  3 00:04:51 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_method.c (rb_alias): rename parameter names.
-
-Tue Jun  2 23:27:18 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: remove rb_method_iseq_t::iseqval.
-	  While making a r50728, iseqval is needed (to mark correctly),
-	  but now just iseqptr is enough.
-
-	* class.c: catch up this fix.
-
-	* gc.c: ditto.
-
-	* proc.c: ditto.
-
-	* vm_method.c: ditto.
-
-Tue Jun  2 21:29:28 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* proc.c (proc_curry): remove a debug line.
-
-Tue Jun  2 12:43:46 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: make rb_method_entry_t a VALUE.
-	  Motivation and new data structure are described in [Bug #11203].
-
-	  This patch also solve the following issues.
-
-	  * [Bug #11200] Memory leak of method entries
-	  * [Bug #11046] __callee__ returns incorrect method name in orphan
-	                 proc
-
-	* test/ruby/test_method.rb: add a test for [Bug #11046].
-
-	* vm_core.h: remove rb_control_frame_t::me. me is located at value
-	  stack.
-
-	* vm_core.h, gc.c, vm_method.c: remove unlinked_method... codes
-	  because method entries are simple VALUEs.
-
-	* method.h: Now, all method entries has own independent method
-	  definitions. Strictly speaking, this change is not essential,
-	  but for future changes.
-
-	  * 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.
-
-	* vm_core.h, vm_insnhelper.c (rb_vm_frame_method_entry) added to
-	  search the current method entry from value stack.
-
-	* vm_insnhelper.c (VM_CHECK_MODE): introduced to enable/disable
-	  assertions.
-
-Tue Jun  2 10:46:36 2015  Eric Wong  <e@80x24.org>
-
-	* test/socket/test_nonblock.rb: new test for sendmsg_nonblock
-
-Tue Jun  2 09:04:14 2015  Eric Wong  <e@80x24.org>
-
-	* lib/benchmark.rb: just use Process::CLOCK_MONOTONIC
-	  [ruby-core:69390]
-
-Mon Jun  1 22:01:27 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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 Jun  1 21:18:24 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (gc_mark_children): remove a garbage character
-	  introduced at the last commit.
-
-Mon Jun  1 19:24:42 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_method.c (rb_method_entry_make): do not show warning message
-	  when method_entry is an alias.
-
-Mon Jun  1 15:47:16 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* internal.h: move class related definitions.
-
-Mon Jun  1 15:43:03 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* class.c: remove needless include pragma for method.h.
-
-	* struct.c: ditto.
-
-	* vm_method.c: ditto.
-
-Mon Jun  1 05:42:00 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* 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).
-
-	* load.c (load_ext): use it.
-
-Mon Jun  1 04:47:37 2015  Zachary Scott  <e@zzak.io>
-
-	* ext/date/date_core.c: [DOC] Add comparison of Time and DateTime
-	  Patch provided by @pixeltrix
-
-Mon Jun  1 04:22:09 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h (VM_FRAME_MAGIC_DUMMY): introduce new frame type to
-	  recognize dummy frame.
-
-	* vm.c (th_init): use new frame type.
-
-	* vm_args.c (raise_argument_error): ditto.
-
-Mon Jun  1 04:15:42 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* class.c (rb_class_has_methods): added to reduce dependency
-	  to internal class data structure.
-
-	* internal.h: ditto.
-
-	* hash.c (has_extra_methods): use added function.
-
-Mon Jun  1 04:11:48 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c , gc.h (rb_obj_info): export obj_info(VALUE) for debugging.
-
-Mon Jun  1 03:52:55 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* test/ruby/test_gc.rb: increase timeout seconds for GC stressful
-	  debugging.
-
-Sun May 31 04:18:06 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: fix typo of comments.
-
-Sun May 31 03:36:42 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h: add VM_METHOD_TYPE_ALIAS rb_method_definition_t::type
-	  to fix [Bug #11173].
-
-	  Now, inter class/method alias creates new method entry
-	  VM_METHOD_TYPE_ALIAS, which has an original method entry.
-
-	* vm_insnhelper.c (find_defined_class_by_owner): added.
-	  Search corresponding defined_class from owner class/module.
-
-	* vm_method.c (rb_method_entry_get_without_cache): return me->klass
-	  directly for defined_class.
-
-	  Now, no need to check me->klass any more.
-
-	* vm_method.c (method_entry_set0): separated from method_entry_set().
-
-	* vm_method.c (rb_alias): make method entry has VM_METHOD_TYPE_ALIAS.
-
-	* vm_method.c (release_method_definition): support VM_METHOD_TYPE_ALIAS.
-
-	* vm_method.c (rb_hash_method_definition): ditto.
-
-	* vm_method.c (rb_method_definition_eq): ditto.
-
-	* vm_method.c (release_method_definition): ditto.
-
-	* vm_insnhelper.c (vm_call_method): ditto.
-
-	* vm_insnhelper.c (vm_method_cfunc_entry): ditto.
-
-	* vm_eval.c (vm_call0_body): ditto.
-
-	* gc.c (mark_method_entry): ditto.
-
-	* proc.c (method_def_iseq): ditto.
-
-	* proc.c (method_cref): ditto.
-
-	* proc.c (rb_method_entry_min_max_arity): ditto.
-
-	* test/ruby/test_alias.rb: add tests.
-
-	* test/ruby/test_module.rb: fix a test to catch up current behavior.
-
-Sun May 31 03:34:25 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_method.c (rb_unlink_method_entry): make it static.
-
-Sun May 31 03:26:58 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* method.h, vm_method.c (rb_free_method_entry): constify a parameter.
-
-	* vm_core.h: remove useless declaration about rb_unlink_method_entry().
-
-Sat May 30 18:05:02 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/tempfile.rb (Remover#call): fixed wrong condition.  introduced at
-	  r50682.
-
-Sat May 30 16:12:35 2015  Eric Wong  <e@80x24.org>
-
-	* ext/socket/ancdata.c: use RB_GC_GUARD instead of volatile
-	  [ruby-core:69419] [Feature #11198]
-
-Sat May 30 15:59:10 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* 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 May 30 11:02:55 2015  Martin Englund <martin@englund.nu>
-
-	* doc/dtrace_probes.rdoc: change lingering dtrace probe documentation
-	  from function- to method-
-
-Sat May 30 10:26:09 2015  Masaki Matsushita <glass.saga@gmail.com>
-
-	* 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
-
-Sat May 30 09:02:51 2015  Eric Wong  <e@80x24.org>
-
-	* 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]
-
-Sat May 30 09:14:28 2015  Scott Francis  <scott.francis@shopify.com>
-
-	* cont.c (cont_free): check if ruby_current_thread is still valid.
-	  [Fix GH-914]
-
-Sat May 30 08:36:04 2015  Eric Wong  <e@80x24.org>
-
-	* 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]
-
-Sat May 30 08:10:46 2015  Eric Wong  <e@80x24.org>
-
-	* 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 May 29 17:39:14 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* tool/make_hgraph.rb: added.
-
-Fri May 29 14:39:00 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (iseq_compile_each): out of range NTH_REF is always
-	  nil.
-
-	* parse.y (parse_numvar): check overflow of NTH_REF and range.
-	  [ruby-core:69393] [Bug #11192]
-
-	* util.c (ruby_scan_digits): make public and add length parameter.
-
-Fri May 29 11:18:58 2015  Eric Wong  <e@80x24.org>
-
-	* 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
-
-Fri May 29 10:30:34 2015  Eric Wong  <e@80x24.org>
-
-	* lib/net/resolv.rb (request): use monotonic clock
-	* lib/net/http.rb (begin_transport, end_transport): ditto
-	  [ruby-core:69384] [Feature #11124]
-
-Fri May 29 04:37:38 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* ext/objspace/objspace.c: add two methods to debug internals.
-
-	  * ObjectSpace.internal_class_of: return RBASIC_CLASS(obj).
-	  * ObjectSpace.internal_super_of: return RCLASS_SUPER(cls).
-
-	* NEWS: add information about both methods.
-
-	* test/objspace/test_objspace.rb: add tests for both methods.
-
-Thu May 28 06:55:53 2015  Anton Davydov  <antondavydov.o@gmail.com>
-
-	* ext/tk/sample/figmemo_sample.rb (open_file),
-	  ext/tk/sample/tktextio.rb (TkTextIO): fix typo in messages.
-	  [Fix GH-916]
-
-Wed May 27 09:50:51 2015  Eric Wong  <e@80x24.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]
-
-Wed May 27 09:27:30 2015  Eric Wong  <e@80x24.org>
-
-	* lib/drb/drb.rb (set_sockopt): remove redundant fcntl call
-	* lib/drb/unix.rb (set_sockopt): ditto
-	  [ruby-core:69128] [Feature #11137]
-
-Tue May 26 22:10:43 2015  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_method.c (rb_alias): should resolve refined methods.
-	  [ruby-core:69360] [Bug #11182]
-
-Tue May 26 21:35:13 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* include/ruby/defines.h (RUBY_ATTR_ALLOC_SIZE): fix condition.
-
-Mon May 25 22:35:58 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* tool/redmine-backporter.rb (rel): after the relations is changed,
-	  @changesets is no longer right.
-
-Mon May 25 11:27:14 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* win32/win32.c (setup_overlapped): seek to the file end only when
-	  writing (mode:a), not reading (mode:a+, read).
-
-Mon May 25 00:27:37 2015  Benoit Daloze  <eregontp@gmail.com>
-
-	* numeric.c (Numeric#negative?): [DOC] Fix call-seq.
-	  Patch by @yui-knk. [Fixes GH-908]
-
-Sun May 24 01:35:22 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* debug.c (ruby_debug_print_id): use rb_id2name() for fprintf().
-
-Sat May 23 18:38:46 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* man/*.1: updated dates in man pages.
-	  [ruby-dev:48988] [Bug #11171]
-
-Sat May 23 03:10:58 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_write_console): should return the count of
-	  actually eaten characters, include escape sequences.
-
-Fri May 22 22:36:14 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/prime.rb: Remove obsolete Prime.new
-	  patch by Ajay Kumar. [Fixes GH-891]
-
-Fri May 22 21:13:12 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* 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.
-
-Fri May 22 20:56:33 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* complex.c (f_complex_polar): simple bug reproduced only when y is
-	  a float but x is not a float.
-
-Fri May 22 19:42:06 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* process.c (rb_spawn_process): do not discard global escape
-	  status.  [ruby-core:69304] [Bug #11166]
-
-	* process.c (rb_execarg_spawn): extract the start procedure in a
-	  parent process with ensuring the end procedure.
-
-Fri May 22 16:48:32 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* NEWS: added news for net-telnet and rake
-
-Thu May 21 20:27:07 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* 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.
-
-Thu May 21 18:00:19 2015  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.c: constify.
-
-	* iseq.h: ditto.
-
-	* method.h: ditto.
-
-	* proc.c: ditto.
-
-	* vm_method.c: ditto.